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41c445ff JB |
1 | /******************************************************************************* |
2 | * | |
3 | * Intel Ethernet Controller XL710 Family Linux Driver | |
e827845c | 4 | * Copyright(c) 2013 - 2015 Intel Corporation. |
41c445ff JB |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms and conditions of the GNU General Public License, | |
8 | * version 2, as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
dc641b73 GR |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program. If not, see <http://www.gnu.org/licenses/>. | |
41c445ff JB |
17 | * |
18 | * The full GNU General Public License is included in this distribution in | |
19 | * the file called "COPYING". | |
20 | * | |
21 | * Contact Information: | |
22 | * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | ******************************************************************************/ | |
26 | ||
27 | /* Local includes */ | |
28 | #include "i40e.h" | |
4eb3f768 | 29 | #include "i40e_diag.h" |
a1c9a9d9 JK |
30 | #ifdef CONFIG_I40E_VXLAN |
31 | #include <net/vxlan.h> | |
32 | #endif | |
41c445ff JB |
33 | |
34 | const char i40e_driver_name[] = "i40e"; | |
35 | static const char i40e_driver_string[] = | |
36 | "Intel(R) Ethernet Connection XL710 Network Driver"; | |
37 | ||
38 | #define DRV_KERN "-k" | |
39 | ||
e8e724db | 40 | #define DRV_VERSION_MAJOR 1 |
42d255ce | 41 | #define DRV_VERSION_MINOR 3 |
0e320516 | 42 | #define DRV_VERSION_BUILD 46 |
41c445ff JB |
43 | #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \ |
44 | __stringify(DRV_VERSION_MINOR) "." \ | |
45 | __stringify(DRV_VERSION_BUILD) DRV_KERN | |
46 | const char i40e_driver_version_str[] = DRV_VERSION; | |
8fb905b3 | 47 | static const char i40e_copyright[] = "Copyright (c) 2013 - 2014 Intel Corporation."; |
41c445ff JB |
48 | |
49 | /* a bit of forward declarations */ | |
50 | static void i40e_vsi_reinit_locked(struct i40e_vsi *vsi); | |
51 | static void i40e_handle_reset_warning(struct i40e_pf *pf); | |
52 | static int i40e_add_vsi(struct i40e_vsi *vsi); | |
53 | static int i40e_add_veb(struct i40e_veb *veb, struct i40e_vsi *vsi); | |
bc7d338f | 54 | static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit); |
41c445ff JB |
55 | static int i40e_setup_misc_vector(struct i40e_pf *pf); |
56 | static void i40e_determine_queue_usage(struct i40e_pf *pf); | |
57 | static int i40e_setup_pf_filter_control(struct i40e_pf *pf); | |
cbf61325 | 58 | static void i40e_fdir_sb_setup(struct i40e_pf *pf); |
4e3b35b0 | 59 | static int i40e_veb_get_bw_info(struct i40e_veb *veb); |
41c445ff JB |
60 | |
61 | /* i40e_pci_tbl - PCI Device ID Table | |
62 | * | |
63 | * Last entry must be all 0s | |
64 | * | |
65 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
66 | * Class, Class Mask, private data (not used) } | |
67 | */ | |
9baa3c34 | 68 | static const struct pci_device_id i40e_pci_tbl[] = { |
ab60085e | 69 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_SFP_XL710), 0}, |
ab60085e SN |
70 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_QEMU), 0}, |
71 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_A), 0}, | |
72 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_B), 0}, | |
73 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_C), 0}, | |
ab60085e SN |
74 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_A), 0}, |
75 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_B), 0}, | |
76 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_C), 0}, | |
5960d33f | 77 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_10G_BASE_T), 0}, |
bc5166b9 | 78 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_10G_BASE_T4), 0}, |
ae24b409 | 79 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_20G_KR2), 0}, |
87e6c1d7 ASJ |
80 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_SFP_X722), 0}, |
81 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_1G_BASE_T_X722), 0}, | |
82 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_10G_BASE_T_X722), 0}, | |
48a3b512 SN |
83 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_20G_KR2), 0}, |
84 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_20G_KR2_A), 0}, | |
41c445ff JB |
85 | /* required last entry */ |
86 | {0, } | |
87 | }; | |
88 | MODULE_DEVICE_TABLE(pci, i40e_pci_tbl); | |
89 | ||
90 | #define I40E_MAX_VF_COUNT 128 | |
91 | static int debug = -1; | |
92 | module_param(debug, int, 0); | |
93 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
94 | ||
95 | MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>"); | |
96 | MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver"); | |
97 | MODULE_LICENSE("GPL"); | |
98 | MODULE_VERSION(DRV_VERSION); | |
99 | ||
100 | /** | |
101 | * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code | |
102 | * @hw: pointer to the HW structure | |
103 | * @mem: ptr to mem struct to fill out | |
104 | * @size: size of memory requested | |
105 | * @alignment: what to align the allocation to | |
106 | **/ | |
107 | int i40e_allocate_dma_mem_d(struct i40e_hw *hw, struct i40e_dma_mem *mem, | |
108 | u64 size, u32 alignment) | |
109 | { | |
110 | struct i40e_pf *pf = (struct i40e_pf *)hw->back; | |
111 | ||
112 | mem->size = ALIGN(size, alignment); | |
113 | mem->va = dma_zalloc_coherent(&pf->pdev->dev, mem->size, | |
114 | &mem->pa, GFP_KERNEL); | |
93bc73b8 JB |
115 | if (!mem->va) |
116 | return -ENOMEM; | |
41c445ff | 117 | |
93bc73b8 | 118 | return 0; |
41c445ff JB |
119 | } |
120 | ||
121 | /** | |
122 | * i40e_free_dma_mem_d - OS specific memory free for shared code | |
123 | * @hw: pointer to the HW structure | |
124 | * @mem: ptr to mem struct to free | |
125 | **/ | |
126 | int i40e_free_dma_mem_d(struct i40e_hw *hw, struct i40e_dma_mem *mem) | |
127 | { | |
128 | struct i40e_pf *pf = (struct i40e_pf *)hw->back; | |
129 | ||
130 | dma_free_coherent(&pf->pdev->dev, mem->size, mem->va, mem->pa); | |
131 | mem->va = NULL; | |
132 | mem->pa = 0; | |
133 | mem->size = 0; | |
134 | ||
135 | return 0; | |
136 | } | |
137 | ||
138 | /** | |
139 | * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code | |
140 | * @hw: pointer to the HW structure | |
141 | * @mem: ptr to mem struct to fill out | |
142 | * @size: size of memory requested | |
143 | **/ | |
144 | int i40e_allocate_virt_mem_d(struct i40e_hw *hw, struct i40e_virt_mem *mem, | |
145 | u32 size) | |
146 | { | |
147 | mem->size = size; | |
148 | mem->va = kzalloc(size, GFP_KERNEL); | |
149 | ||
93bc73b8 JB |
150 | if (!mem->va) |
151 | return -ENOMEM; | |
41c445ff | 152 | |
93bc73b8 | 153 | return 0; |
41c445ff JB |
154 | } |
155 | ||
156 | /** | |
157 | * i40e_free_virt_mem_d - OS specific memory free for shared code | |
158 | * @hw: pointer to the HW structure | |
159 | * @mem: ptr to mem struct to free | |
160 | **/ | |
161 | int i40e_free_virt_mem_d(struct i40e_hw *hw, struct i40e_virt_mem *mem) | |
162 | { | |
163 | /* it's ok to kfree a NULL pointer */ | |
164 | kfree(mem->va); | |
165 | mem->va = NULL; | |
166 | mem->size = 0; | |
167 | ||
168 | return 0; | |
169 | } | |
170 | ||
171 | /** | |
172 | * i40e_get_lump - find a lump of free generic resource | |
173 | * @pf: board private structure | |
174 | * @pile: the pile of resource to search | |
175 | * @needed: the number of items needed | |
176 | * @id: an owner id to stick on the items assigned | |
177 | * | |
178 | * Returns the base item index of the lump, or negative for error | |
179 | * | |
180 | * The search_hint trick and lack of advanced fit-finding only work | |
181 | * because we're highly likely to have all the same size lump requests. | |
182 | * Linear search time and any fragmentation should be minimal. | |
183 | **/ | |
184 | static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile, | |
185 | u16 needed, u16 id) | |
186 | { | |
187 | int ret = -ENOMEM; | |
ddf434ac | 188 | int i, j; |
41c445ff JB |
189 | |
190 | if (!pile || needed == 0 || id >= I40E_PILE_VALID_BIT) { | |
191 | dev_info(&pf->pdev->dev, | |
192 | "param err: pile=%p needed=%d id=0x%04x\n", | |
193 | pile, needed, id); | |
194 | return -EINVAL; | |
195 | } | |
196 | ||
197 | /* start the linear search with an imperfect hint */ | |
198 | i = pile->search_hint; | |
ddf434ac | 199 | while (i < pile->num_entries) { |
41c445ff JB |
200 | /* skip already allocated entries */ |
201 | if (pile->list[i] & I40E_PILE_VALID_BIT) { | |
202 | i++; | |
203 | continue; | |
204 | } | |
205 | ||
206 | /* do we have enough in this lump? */ | |
207 | for (j = 0; (j < needed) && ((i+j) < pile->num_entries); j++) { | |
208 | if (pile->list[i+j] & I40E_PILE_VALID_BIT) | |
209 | break; | |
210 | } | |
211 | ||
212 | if (j == needed) { | |
213 | /* there was enough, so assign it to the requestor */ | |
214 | for (j = 0; j < needed; j++) | |
215 | pile->list[i+j] = id | I40E_PILE_VALID_BIT; | |
216 | ret = i; | |
217 | pile->search_hint = i + j; | |
ddf434ac | 218 | break; |
41c445ff | 219 | } |
6995b36c JB |
220 | |
221 | /* not enough, so skip over it and continue looking */ | |
222 | i += j; | |
41c445ff JB |
223 | } |
224 | ||
225 | return ret; | |
226 | } | |
227 | ||
228 | /** | |
229 | * i40e_put_lump - return a lump of generic resource | |
230 | * @pile: the pile of resource to search | |
231 | * @index: the base item index | |
232 | * @id: the owner id of the items assigned | |
233 | * | |
234 | * Returns the count of items in the lump | |
235 | **/ | |
236 | static int i40e_put_lump(struct i40e_lump_tracking *pile, u16 index, u16 id) | |
237 | { | |
238 | int valid_id = (id | I40E_PILE_VALID_BIT); | |
239 | int count = 0; | |
240 | int i; | |
241 | ||
242 | if (!pile || index >= pile->num_entries) | |
243 | return -EINVAL; | |
244 | ||
245 | for (i = index; | |
246 | i < pile->num_entries && pile->list[i] == valid_id; | |
247 | i++) { | |
248 | pile->list[i] = 0; | |
249 | count++; | |
250 | } | |
251 | ||
252 | if (count && index < pile->search_hint) | |
253 | pile->search_hint = index; | |
254 | ||
255 | return count; | |
256 | } | |
257 | ||
fdf0e0bf ASJ |
258 | /** |
259 | * i40e_find_vsi_from_id - searches for the vsi with the given id | |
260 | * @pf - the pf structure to search for the vsi | |
261 | * @id - id of the vsi it is searching for | |
262 | **/ | |
263 | struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id) | |
264 | { | |
265 | int i; | |
266 | ||
267 | for (i = 0; i < pf->num_alloc_vsi; i++) | |
268 | if (pf->vsi[i] && (pf->vsi[i]->id == id)) | |
269 | return pf->vsi[i]; | |
270 | ||
271 | return NULL; | |
272 | } | |
273 | ||
41c445ff JB |
274 | /** |
275 | * i40e_service_event_schedule - Schedule the service task to wake up | |
276 | * @pf: board private structure | |
277 | * | |
278 | * If not already scheduled, this puts the task into the work queue | |
279 | **/ | |
280 | static void i40e_service_event_schedule(struct i40e_pf *pf) | |
281 | { | |
282 | if (!test_bit(__I40E_DOWN, &pf->state) && | |
283 | !test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) && | |
284 | !test_and_set_bit(__I40E_SERVICE_SCHED, &pf->state)) | |
285 | schedule_work(&pf->service_task); | |
286 | } | |
287 | ||
288 | /** | |
289 | * i40e_tx_timeout - Respond to a Tx Hang | |
290 | * @netdev: network interface device structure | |
291 | * | |
292 | * If any port has noticed a Tx timeout, it is likely that the whole | |
293 | * device is munged, not just the one netdev port, so go for the full | |
294 | * reset. | |
295 | **/ | |
38e00438 VD |
296 | #ifdef I40E_FCOE |
297 | void i40e_tx_timeout(struct net_device *netdev) | |
298 | #else | |
41c445ff | 299 | static void i40e_tx_timeout(struct net_device *netdev) |
38e00438 | 300 | #endif |
41c445ff JB |
301 | { |
302 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
303 | struct i40e_vsi *vsi = np->vsi; | |
304 | struct i40e_pf *pf = vsi->back; | |
b03a8c1f KP |
305 | struct i40e_ring *tx_ring = NULL; |
306 | unsigned int i, hung_queue = 0; | |
307 | u32 head, val; | |
41c445ff JB |
308 | |
309 | pf->tx_timeout_count++; | |
310 | ||
b03a8c1f KP |
311 | /* find the stopped queue the same way the stack does */ |
312 | for (i = 0; i < netdev->num_tx_queues; i++) { | |
313 | struct netdev_queue *q; | |
314 | unsigned long trans_start; | |
315 | ||
316 | q = netdev_get_tx_queue(netdev, i); | |
317 | trans_start = q->trans_start ? : netdev->trans_start; | |
318 | if (netif_xmit_stopped(q) && | |
319 | time_after(jiffies, | |
320 | (trans_start + netdev->watchdog_timeo))) { | |
321 | hung_queue = i; | |
322 | break; | |
323 | } | |
324 | } | |
325 | ||
326 | if (i == netdev->num_tx_queues) { | |
327 | netdev_info(netdev, "tx_timeout: no netdev hung queue found\n"); | |
328 | } else { | |
329 | /* now that we have an index, find the tx_ring struct */ | |
330 | for (i = 0; i < vsi->num_queue_pairs; i++) { | |
331 | if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) { | |
332 | if (hung_queue == | |
333 | vsi->tx_rings[i]->queue_index) { | |
334 | tx_ring = vsi->tx_rings[i]; | |
335 | break; | |
336 | } | |
337 | } | |
338 | } | |
339 | } | |
340 | ||
41c445ff | 341 | if (time_after(jiffies, (pf->tx_timeout_last_recovery + HZ*20))) |
b03a8c1f KP |
342 | pf->tx_timeout_recovery_level = 1; /* reset after some time */ |
343 | else if (time_before(jiffies, | |
344 | (pf->tx_timeout_last_recovery + netdev->watchdog_timeo))) | |
345 | return; /* don't do any new action before the next timeout */ | |
346 | ||
347 | if (tx_ring) { | |
348 | head = i40e_get_head(tx_ring); | |
349 | /* Read interrupt register */ | |
350 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) | |
351 | val = rd32(&pf->hw, | |
352 | I40E_PFINT_DYN_CTLN(tx_ring->q_vector->v_idx + | |
353 | tx_ring->vsi->base_vector - 1)); | |
354 | else | |
355 | val = rd32(&pf->hw, I40E_PFINT_DYN_CTL0); | |
356 | ||
357 | netdev_info(netdev, "tx_timeout: VSI_seid: %d, Q %d, NTC: 0x%x, HWB: 0x%x, NTU: 0x%x, TAIL: 0x%x, INT: 0x%x\n", | |
358 | vsi->seid, hung_queue, tx_ring->next_to_clean, | |
359 | head, tx_ring->next_to_use, | |
360 | readl(tx_ring->tail), val); | |
361 | } | |
362 | ||
41c445ff | 363 | pf->tx_timeout_last_recovery = jiffies; |
b03a8c1f KP |
364 | netdev_info(netdev, "tx_timeout recovery level %d, hung_queue %d\n", |
365 | pf->tx_timeout_recovery_level, hung_queue); | |
41c445ff JB |
366 | |
367 | switch (pf->tx_timeout_recovery_level) { | |
41c445ff JB |
368 | case 1: |
369 | set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); | |
370 | break; | |
371 | case 2: | |
372 | set_bit(__I40E_CORE_RESET_REQUESTED, &pf->state); | |
373 | break; | |
374 | case 3: | |
375 | set_bit(__I40E_GLOBAL_RESET_REQUESTED, &pf->state); | |
376 | break; | |
377 | default: | |
378 | netdev_err(netdev, "tx_timeout recovery unsuccessful\n"); | |
41c445ff JB |
379 | break; |
380 | } | |
b03a8c1f | 381 | |
41c445ff JB |
382 | i40e_service_event_schedule(pf); |
383 | pf->tx_timeout_recovery_level++; | |
384 | } | |
385 | ||
386 | /** | |
387 | * i40e_release_rx_desc - Store the new tail and head values | |
388 | * @rx_ring: ring to bump | |
389 | * @val: new head index | |
390 | **/ | |
391 | static inline void i40e_release_rx_desc(struct i40e_ring *rx_ring, u32 val) | |
392 | { | |
393 | rx_ring->next_to_use = val; | |
394 | ||
395 | /* Force memory writes to complete before letting h/w | |
396 | * know there are new descriptors to fetch. (Only | |
397 | * applicable for weak-ordered memory model archs, | |
398 | * such as IA-64). | |
399 | */ | |
400 | wmb(); | |
401 | writel(val, rx_ring->tail); | |
402 | } | |
403 | ||
404 | /** | |
405 | * i40e_get_vsi_stats_struct - Get System Network Statistics | |
406 | * @vsi: the VSI we care about | |
407 | * | |
408 | * Returns the address of the device statistics structure. | |
409 | * The statistics are actually updated from the service task. | |
410 | **/ | |
411 | struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi) | |
412 | { | |
413 | return &vsi->net_stats; | |
414 | } | |
415 | ||
416 | /** | |
417 | * i40e_get_netdev_stats_struct - Get statistics for netdev interface | |
418 | * @netdev: network interface device structure | |
419 | * | |
420 | * Returns the address of the device statistics structure. | |
421 | * The statistics are actually updated from the service task. | |
422 | **/ | |
38e00438 VD |
423 | #ifdef I40E_FCOE |
424 | struct rtnl_link_stats64 *i40e_get_netdev_stats_struct( | |
425 | struct net_device *netdev, | |
426 | struct rtnl_link_stats64 *stats) | |
427 | #else | |
41c445ff JB |
428 | static struct rtnl_link_stats64 *i40e_get_netdev_stats_struct( |
429 | struct net_device *netdev, | |
980e9b11 | 430 | struct rtnl_link_stats64 *stats) |
38e00438 | 431 | #endif |
41c445ff JB |
432 | { |
433 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
e7046ee1 | 434 | struct i40e_ring *tx_ring, *rx_ring; |
41c445ff | 435 | struct i40e_vsi *vsi = np->vsi; |
980e9b11 AD |
436 | struct rtnl_link_stats64 *vsi_stats = i40e_get_vsi_stats_struct(vsi); |
437 | int i; | |
438 | ||
bc7d338f ASJ |
439 | if (test_bit(__I40E_DOWN, &vsi->state)) |
440 | return stats; | |
441 | ||
3c325ced JB |
442 | if (!vsi->tx_rings) |
443 | return stats; | |
444 | ||
980e9b11 AD |
445 | rcu_read_lock(); |
446 | for (i = 0; i < vsi->num_queue_pairs; i++) { | |
980e9b11 AD |
447 | u64 bytes, packets; |
448 | unsigned int start; | |
449 | ||
450 | tx_ring = ACCESS_ONCE(vsi->tx_rings[i]); | |
451 | if (!tx_ring) | |
452 | continue; | |
453 | ||
454 | do { | |
57a7744e | 455 | start = u64_stats_fetch_begin_irq(&tx_ring->syncp); |
980e9b11 AD |
456 | packets = tx_ring->stats.packets; |
457 | bytes = tx_ring->stats.bytes; | |
57a7744e | 458 | } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start)); |
980e9b11 AD |
459 | |
460 | stats->tx_packets += packets; | |
461 | stats->tx_bytes += bytes; | |
462 | rx_ring = &tx_ring[1]; | |
463 | ||
464 | do { | |
57a7744e | 465 | start = u64_stats_fetch_begin_irq(&rx_ring->syncp); |
980e9b11 AD |
466 | packets = rx_ring->stats.packets; |
467 | bytes = rx_ring->stats.bytes; | |
57a7744e | 468 | } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start)); |
41c445ff | 469 | |
980e9b11 AD |
470 | stats->rx_packets += packets; |
471 | stats->rx_bytes += bytes; | |
472 | } | |
473 | rcu_read_unlock(); | |
474 | ||
a5282f44 | 475 | /* following stats updated by i40e_watchdog_subtask() */ |
980e9b11 AD |
476 | stats->multicast = vsi_stats->multicast; |
477 | stats->tx_errors = vsi_stats->tx_errors; | |
478 | stats->tx_dropped = vsi_stats->tx_dropped; | |
479 | stats->rx_errors = vsi_stats->rx_errors; | |
d8201e20 | 480 | stats->rx_dropped = vsi_stats->rx_dropped; |
980e9b11 AD |
481 | stats->rx_crc_errors = vsi_stats->rx_crc_errors; |
482 | stats->rx_length_errors = vsi_stats->rx_length_errors; | |
41c445ff | 483 | |
980e9b11 | 484 | return stats; |
41c445ff JB |
485 | } |
486 | ||
487 | /** | |
488 | * i40e_vsi_reset_stats - Resets all stats of the given vsi | |
489 | * @vsi: the VSI to have its stats reset | |
490 | **/ | |
491 | void i40e_vsi_reset_stats(struct i40e_vsi *vsi) | |
492 | { | |
493 | struct rtnl_link_stats64 *ns; | |
494 | int i; | |
495 | ||
496 | if (!vsi) | |
497 | return; | |
498 | ||
499 | ns = i40e_get_vsi_stats_struct(vsi); | |
500 | memset(ns, 0, sizeof(*ns)); | |
501 | memset(&vsi->net_stats_offsets, 0, sizeof(vsi->net_stats_offsets)); | |
502 | memset(&vsi->eth_stats, 0, sizeof(vsi->eth_stats)); | |
503 | memset(&vsi->eth_stats_offsets, 0, sizeof(vsi->eth_stats_offsets)); | |
8e9dca53 | 504 | if (vsi->rx_rings && vsi->rx_rings[0]) { |
41c445ff | 505 | for (i = 0; i < vsi->num_queue_pairs; i++) { |
6995b36c | 506 | memset(&vsi->rx_rings[i]->stats, 0, |
9f65e15b | 507 | sizeof(vsi->rx_rings[i]->stats)); |
6995b36c | 508 | memset(&vsi->rx_rings[i]->rx_stats, 0, |
9f65e15b | 509 | sizeof(vsi->rx_rings[i]->rx_stats)); |
6995b36c | 510 | memset(&vsi->tx_rings[i]->stats, 0, |
9f65e15b AD |
511 | sizeof(vsi->tx_rings[i]->stats)); |
512 | memset(&vsi->tx_rings[i]->tx_stats, 0, | |
513 | sizeof(vsi->tx_rings[i]->tx_stats)); | |
41c445ff | 514 | } |
8e9dca53 | 515 | } |
41c445ff JB |
516 | vsi->stat_offsets_loaded = false; |
517 | } | |
518 | ||
519 | /** | |
b40c82e6 | 520 | * i40e_pf_reset_stats - Reset all of the stats for the given PF |
41c445ff JB |
521 | * @pf: the PF to be reset |
522 | **/ | |
523 | void i40e_pf_reset_stats(struct i40e_pf *pf) | |
524 | { | |
e91fdf76 SN |
525 | int i; |
526 | ||
41c445ff JB |
527 | memset(&pf->stats, 0, sizeof(pf->stats)); |
528 | memset(&pf->stats_offsets, 0, sizeof(pf->stats_offsets)); | |
529 | pf->stat_offsets_loaded = false; | |
e91fdf76 SN |
530 | |
531 | for (i = 0; i < I40E_MAX_VEB; i++) { | |
532 | if (pf->veb[i]) { | |
533 | memset(&pf->veb[i]->stats, 0, | |
534 | sizeof(pf->veb[i]->stats)); | |
535 | memset(&pf->veb[i]->stats_offsets, 0, | |
536 | sizeof(pf->veb[i]->stats_offsets)); | |
537 | pf->veb[i]->stat_offsets_loaded = false; | |
538 | } | |
539 | } | |
41c445ff JB |
540 | } |
541 | ||
542 | /** | |
543 | * i40e_stat_update48 - read and update a 48 bit stat from the chip | |
544 | * @hw: ptr to the hardware info | |
545 | * @hireg: the high 32 bit reg to read | |
546 | * @loreg: the low 32 bit reg to read | |
547 | * @offset_loaded: has the initial offset been loaded yet | |
548 | * @offset: ptr to current offset value | |
549 | * @stat: ptr to the stat | |
550 | * | |
551 | * Since the device stats are not reset at PFReset, they likely will not | |
552 | * be zeroed when the driver starts. We'll save the first values read | |
553 | * and use them as offsets to be subtracted from the raw values in order | |
554 | * to report stats that count from zero. In the process, we also manage | |
555 | * the potential roll-over. | |
556 | **/ | |
557 | static void i40e_stat_update48(struct i40e_hw *hw, u32 hireg, u32 loreg, | |
558 | bool offset_loaded, u64 *offset, u64 *stat) | |
559 | { | |
560 | u64 new_data; | |
561 | ||
ab60085e | 562 | if (hw->device_id == I40E_DEV_ID_QEMU) { |
41c445ff JB |
563 | new_data = rd32(hw, loreg); |
564 | new_data |= ((u64)(rd32(hw, hireg) & 0xFFFF)) << 32; | |
565 | } else { | |
566 | new_data = rd64(hw, loreg); | |
567 | } | |
568 | if (!offset_loaded) | |
569 | *offset = new_data; | |
570 | if (likely(new_data >= *offset)) | |
571 | *stat = new_data - *offset; | |
572 | else | |
41a1d04b | 573 | *stat = (new_data + BIT_ULL(48)) - *offset; |
41c445ff JB |
574 | *stat &= 0xFFFFFFFFFFFFULL; |
575 | } | |
576 | ||
577 | /** | |
578 | * i40e_stat_update32 - read and update a 32 bit stat from the chip | |
579 | * @hw: ptr to the hardware info | |
580 | * @reg: the hw reg to read | |
581 | * @offset_loaded: has the initial offset been loaded yet | |
582 | * @offset: ptr to current offset value | |
583 | * @stat: ptr to the stat | |
584 | **/ | |
585 | static void i40e_stat_update32(struct i40e_hw *hw, u32 reg, | |
586 | bool offset_loaded, u64 *offset, u64 *stat) | |
587 | { | |
588 | u32 new_data; | |
589 | ||
590 | new_data = rd32(hw, reg); | |
591 | if (!offset_loaded) | |
592 | *offset = new_data; | |
593 | if (likely(new_data >= *offset)) | |
594 | *stat = (u32)(new_data - *offset); | |
595 | else | |
41a1d04b | 596 | *stat = (u32)((new_data + BIT_ULL(32)) - *offset); |
41c445ff JB |
597 | } |
598 | ||
599 | /** | |
600 | * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters. | |
601 | * @vsi: the VSI to be updated | |
602 | **/ | |
603 | void i40e_update_eth_stats(struct i40e_vsi *vsi) | |
604 | { | |
605 | int stat_idx = le16_to_cpu(vsi->info.stat_counter_idx); | |
606 | struct i40e_pf *pf = vsi->back; | |
607 | struct i40e_hw *hw = &pf->hw; | |
608 | struct i40e_eth_stats *oes; | |
609 | struct i40e_eth_stats *es; /* device's eth stats */ | |
610 | ||
611 | es = &vsi->eth_stats; | |
612 | oes = &vsi->eth_stats_offsets; | |
613 | ||
614 | /* Gather up the stats that the hw collects */ | |
615 | i40e_stat_update32(hw, I40E_GLV_TEPC(stat_idx), | |
616 | vsi->stat_offsets_loaded, | |
617 | &oes->tx_errors, &es->tx_errors); | |
618 | i40e_stat_update32(hw, I40E_GLV_RDPC(stat_idx), | |
619 | vsi->stat_offsets_loaded, | |
620 | &oes->rx_discards, &es->rx_discards); | |
41a9e55c SN |
621 | i40e_stat_update32(hw, I40E_GLV_RUPP(stat_idx), |
622 | vsi->stat_offsets_loaded, | |
623 | &oes->rx_unknown_protocol, &es->rx_unknown_protocol); | |
624 | i40e_stat_update32(hw, I40E_GLV_TEPC(stat_idx), | |
625 | vsi->stat_offsets_loaded, | |
626 | &oes->tx_errors, &es->tx_errors); | |
41c445ff JB |
627 | |
628 | i40e_stat_update48(hw, I40E_GLV_GORCH(stat_idx), | |
629 | I40E_GLV_GORCL(stat_idx), | |
630 | vsi->stat_offsets_loaded, | |
631 | &oes->rx_bytes, &es->rx_bytes); | |
632 | i40e_stat_update48(hw, I40E_GLV_UPRCH(stat_idx), | |
633 | I40E_GLV_UPRCL(stat_idx), | |
634 | vsi->stat_offsets_loaded, | |
635 | &oes->rx_unicast, &es->rx_unicast); | |
636 | i40e_stat_update48(hw, I40E_GLV_MPRCH(stat_idx), | |
637 | I40E_GLV_MPRCL(stat_idx), | |
638 | vsi->stat_offsets_loaded, | |
639 | &oes->rx_multicast, &es->rx_multicast); | |
640 | i40e_stat_update48(hw, I40E_GLV_BPRCH(stat_idx), | |
641 | I40E_GLV_BPRCL(stat_idx), | |
642 | vsi->stat_offsets_loaded, | |
643 | &oes->rx_broadcast, &es->rx_broadcast); | |
644 | ||
645 | i40e_stat_update48(hw, I40E_GLV_GOTCH(stat_idx), | |
646 | I40E_GLV_GOTCL(stat_idx), | |
647 | vsi->stat_offsets_loaded, | |
648 | &oes->tx_bytes, &es->tx_bytes); | |
649 | i40e_stat_update48(hw, I40E_GLV_UPTCH(stat_idx), | |
650 | I40E_GLV_UPTCL(stat_idx), | |
651 | vsi->stat_offsets_loaded, | |
652 | &oes->tx_unicast, &es->tx_unicast); | |
653 | i40e_stat_update48(hw, I40E_GLV_MPTCH(stat_idx), | |
654 | I40E_GLV_MPTCL(stat_idx), | |
655 | vsi->stat_offsets_loaded, | |
656 | &oes->tx_multicast, &es->tx_multicast); | |
657 | i40e_stat_update48(hw, I40E_GLV_BPTCH(stat_idx), | |
658 | I40E_GLV_BPTCL(stat_idx), | |
659 | vsi->stat_offsets_loaded, | |
660 | &oes->tx_broadcast, &es->tx_broadcast); | |
661 | vsi->stat_offsets_loaded = true; | |
662 | } | |
663 | ||
664 | /** | |
665 | * i40e_update_veb_stats - Update Switch component statistics | |
666 | * @veb: the VEB being updated | |
667 | **/ | |
668 | static void i40e_update_veb_stats(struct i40e_veb *veb) | |
669 | { | |
670 | struct i40e_pf *pf = veb->pf; | |
671 | struct i40e_hw *hw = &pf->hw; | |
672 | struct i40e_eth_stats *oes; | |
673 | struct i40e_eth_stats *es; /* device's eth stats */ | |
fe860afb NP |
674 | struct i40e_veb_tc_stats *veb_oes; |
675 | struct i40e_veb_tc_stats *veb_es; | |
676 | int i, idx = 0; | |
41c445ff JB |
677 | |
678 | idx = veb->stats_idx; | |
679 | es = &veb->stats; | |
680 | oes = &veb->stats_offsets; | |
fe860afb NP |
681 | veb_es = &veb->tc_stats; |
682 | veb_oes = &veb->tc_stats_offsets; | |
41c445ff JB |
683 | |
684 | /* Gather up the stats that the hw collects */ | |
685 | i40e_stat_update32(hw, I40E_GLSW_TDPC(idx), | |
686 | veb->stat_offsets_loaded, | |
687 | &oes->tx_discards, &es->tx_discards); | |
7134f9ce JB |
688 | if (hw->revision_id > 0) |
689 | i40e_stat_update32(hw, I40E_GLSW_RUPP(idx), | |
690 | veb->stat_offsets_loaded, | |
691 | &oes->rx_unknown_protocol, | |
692 | &es->rx_unknown_protocol); | |
41c445ff JB |
693 | i40e_stat_update48(hw, I40E_GLSW_GORCH(idx), I40E_GLSW_GORCL(idx), |
694 | veb->stat_offsets_loaded, | |
695 | &oes->rx_bytes, &es->rx_bytes); | |
696 | i40e_stat_update48(hw, I40E_GLSW_UPRCH(idx), I40E_GLSW_UPRCL(idx), | |
697 | veb->stat_offsets_loaded, | |
698 | &oes->rx_unicast, &es->rx_unicast); | |
699 | i40e_stat_update48(hw, I40E_GLSW_MPRCH(idx), I40E_GLSW_MPRCL(idx), | |
700 | veb->stat_offsets_loaded, | |
701 | &oes->rx_multicast, &es->rx_multicast); | |
702 | i40e_stat_update48(hw, I40E_GLSW_BPRCH(idx), I40E_GLSW_BPRCL(idx), | |
703 | veb->stat_offsets_loaded, | |
704 | &oes->rx_broadcast, &es->rx_broadcast); | |
705 | ||
706 | i40e_stat_update48(hw, I40E_GLSW_GOTCH(idx), I40E_GLSW_GOTCL(idx), | |
707 | veb->stat_offsets_loaded, | |
708 | &oes->tx_bytes, &es->tx_bytes); | |
709 | i40e_stat_update48(hw, I40E_GLSW_UPTCH(idx), I40E_GLSW_UPTCL(idx), | |
710 | veb->stat_offsets_loaded, | |
711 | &oes->tx_unicast, &es->tx_unicast); | |
712 | i40e_stat_update48(hw, I40E_GLSW_MPTCH(idx), I40E_GLSW_MPTCL(idx), | |
713 | veb->stat_offsets_loaded, | |
714 | &oes->tx_multicast, &es->tx_multicast); | |
715 | i40e_stat_update48(hw, I40E_GLSW_BPTCH(idx), I40E_GLSW_BPTCL(idx), | |
716 | veb->stat_offsets_loaded, | |
717 | &oes->tx_broadcast, &es->tx_broadcast); | |
fe860afb NP |
718 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { |
719 | i40e_stat_update48(hw, I40E_GLVEBTC_RPCH(i, idx), | |
720 | I40E_GLVEBTC_RPCL(i, idx), | |
721 | veb->stat_offsets_loaded, | |
722 | &veb_oes->tc_rx_packets[i], | |
723 | &veb_es->tc_rx_packets[i]); | |
724 | i40e_stat_update48(hw, I40E_GLVEBTC_RBCH(i, idx), | |
725 | I40E_GLVEBTC_RBCL(i, idx), | |
726 | veb->stat_offsets_loaded, | |
727 | &veb_oes->tc_rx_bytes[i], | |
728 | &veb_es->tc_rx_bytes[i]); | |
729 | i40e_stat_update48(hw, I40E_GLVEBTC_TPCH(i, idx), | |
730 | I40E_GLVEBTC_TPCL(i, idx), | |
731 | veb->stat_offsets_loaded, | |
732 | &veb_oes->tc_tx_packets[i], | |
733 | &veb_es->tc_tx_packets[i]); | |
734 | i40e_stat_update48(hw, I40E_GLVEBTC_TBCH(i, idx), | |
735 | I40E_GLVEBTC_TBCL(i, idx), | |
736 | veb->stat_offsets_loaded, | |
737 | &veb_oes->tc_tx_bytes[i], | |
738 | &veb_es->tc_tx_bytes[i]); | |
739 | } | |
41c445ff JB |
740 | veb->stat_offsets_loaded = true; |
741 | } | |
742 | ||
38e00438 VD |
743 | #ifdef I40E_FCOE |
744 | /** | |
745 | * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters. | |
746 | * @vsi: the VSI that is capable of doing FCoE | |
747 | **/ | |
748 | static void i40e_update_fcoe_stats(struct i40e_vsi *vsi) | |
749 | { | |
750 | struct i40e_pf *pf = vsi->back; | |
751 | struct i40e_hw *hw = &pf->hw; | |
752 | struct i40e_fcoe_stats *ofs; | |
753 | struct i40e_fcoe_stats *fs; /* device's eth stats */ | |
754 | int idx; | |
755 | ||
756 | if (vsi->type != I40E_VSI_FCOE) | |
757 | return; | |
758 | ||
759 | idx = (pf->pf_seid - I40E_BASE_PF_SEID) + I40E_FCOE_PF_STAT_OFFSET; | |
760 | fs = &vsi->fcoe_stats; | |
761 | ofs = &vsi->fcoe_stats_offsets; | |
762 | ||
763 | i40e_stat_update32(hw, I40E_GL_FCOEPRC(idx), | |
764 | vsi->fcoe_stat_offsets_loaded, | |
765 | &ofs->rx_fcoe_packets, &fs->rx_fcoe_packets); | |
766 | i40e_stat_update48(hw, I40E_GL_FCOEDWRCH(idx), I40E_GL_FCOEDWRCL(idx), | |
767 | vsi->fcoe_stat_offsets_loaded, | |
768 | &ofs->rx_fcoe_dwords, &fs->rx_fcoe_dwords); | |
769 | i40e_stat_update32(hw, I40E_GL_FCOERPDC(idx), | |
770 | vsi->fcoe_stat_offsets_loaded, | |
771 | &ofs->rx_fcoe_dropped, &fs->rx_fcoe_dropped); | |
772 | i40e_stat_update32(hw, I40E_GL_FCOEPTC(idx), | |
773 | vsi->fcoe_stat_offsets_loaded, | |
774 | &ofs->tx_fcoe_packets, &fs->tx_fcoe_packets); | |
775 | i40e_stat_update48(hw, I40E_GL_FCOEDWTCH(idx), I40E_GL_FCOEDWTCL(idx), | |
776 | vsi->fcoe_stat_offsets_loaded, | |
777 | &ofs->tx_fcoe_dwords, &fs->tx_fcoe_dwords); | |
778 | i40e_stat_update32(hw, I40E_GL_FCOECRC(idx), | |
779 | vsi->fcoe_stat_offsets_loaded, | |
780 | &ofs->fcoe_bad_fccrc, &fs->fcoe_bad_fccrc); | |
781 | i40e_stat_update32(hw, I40E_GL_FCOELAST(idx), | |
782 | vsi->fcoe_stat_offsets_loaded, | |
783 | &ofs->fcoe_last_error, &fs->fcoe_last_error); | |
784 | i40e_stat_update32(hw, I40E_GL_FCOEDDPC(idx), | |
785 | vsi->fcoe_stat_offsets_loaded, | |
786 | &ofs->fcoe_ddp_count, &fs->fcoe_ddp_count); | |
787 | ||
788 | vsi->fcoe_stat_offsets_loaded = true; | |
789 | } | |
790 | ||
791 | #endif | |
41c445ff JB |
792 | /** |
793 | * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode | |
794 | * @pf: the corresponding PF | |
795 | * | |
796 | * Update the Rx XOFF counter (PAUSE frames) in link flow control mode | |
797 | **/ | |
798 | static void i40e_update_link_xoff_rx(struct i40e_pf *pf) | |
799 | { | |
800 | struct i40e_hw_port_stats *osd = &pf->stats_offsets; | |
801 | struct i40e_hw_port_stats *nsd = &pf->stats; | |
802 | struct i40e_hw *hw = &pf->hw; | |
803 | u64 xoff = 0; | |
41c445ff JB |
804 | |
805 | if ((hw->fc.current_mode != I40E_FC_FULL) && | |
806 | (hw->fc.current_mode != I40E_FC_RX_PAUSE)) | |
807 | return; | |
808 | ||
809 | xoff = nsd->link_xoff_rx; | |
810 | i40e_stat_update32(hw, I40E_GLPRT_LXOFFRXC(hw->port), | |
811 | pf->stat_offsets_loaded, | |
812 | &osd->link_xoff_rx, &nsd->link_xoff_rx); | |
813 | ||
814 | /* No new LFC xoff rx */ | |
815 | if (!(nsd->link_xoff_rx - xoff)) | |
816 | return; | |
817 | ||
41c445ff JB |
818 | } |
819 | ||
820 | /** | |
821 | * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode | |
822 | * @pf: the corresponding PF | |
823 | * | |
824 | * Update the Rx XOFF counter (PAUSE frames) in PFC mode | |
825 | **/ | |
826 | static void i40e_update_prio_xoff_rx(struct i40e_pf *pf) | |
827 | { | |
828 | struct i40e_hw_port_stats *osd = &pf->stats_offsets; | |
829 | struct i40e_hw_port_stats *nsd = &pf->stats; | |
830 | bool xoff[I40E_MAX_TRAFFIC_CLASS] = {false}; | |
831 | struct i40e_dcbx_config *dcb_cfg; | |
832 | struct i40e_hw *hw = &pf->hw; | |
b03a8c1f | 833 | u16 i; |
41c445ff JB |
834 | u8 tc; |
835 | ||
836 | dcb_cfg = &hw->local_dcbx_config; | |
837 | ||
e120814d NP |
838 | /* Collect Link XOFF stats when PFC is disabled */ |
839 | if (!dcb_cfg->pfc.pfcenable) { | |
41c445ff JB |
840 | i40e_update_link_xoff_rx(pf); |
841 | return; | |
842 | } | |
843 | ||
844 | for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { | |
845 | u64 prio_xoff = nsd->priority_xoff_rx[i]; | |
6995b36c | 846 | |
41c445ff JB |
847 | i40e_stat_update32(hw, I40E_GLPRT_PXOFFRXC(hw->port, i), |
848 | pf->stat_offsets_loaded, | |
849 | &osd->priority_xoff_rx[i], | |
850 | &nsd->priority_xoff_rx[i]); | |
851 | ||
852 | /* No new PFC xoff rx */ | |
853 | if (!(nsd->priority_xoff_rx[i] - prio_xoff)) | |
854 | continue; | |
855 | /* Get the TC for given priority */ | |
856 | tc = dcb_cfg->etscfg.prioritytable[i]; | |
857 | xoff[tc] = true; | |
858 | } | |
41c445ff JB |
859 | } |
860 | ||
861 | /** | |
7812fddc | 862 | * i40e_update_vsi_stats - Update the vsi statistics counters. |
41c445ff JB |
863 | * @vsi: the VSI to be updated |
864 | * | |
865 | * There are a few instances where we store the same stat in a | |
866 | * couple of different structs. This is partly because we have | |
867 | * the netdev stats that need to be filled out, which is slightly | |
868 | * different from the "eth_stats" defined by the chip and used in | |
7812fddc | 869 | * VF communications. We sort it out here. |
41c445ff | 870 | **/ |
7812fddc | 871 | static void i40e_update_vsi_stats(struct i40e_vsi *vsi) |
41c445ff JB |
872 | { |
873 | struct i40e_pf *pf = vsi->back; | |
41c445ff JB |
874 | struct rtnl_link_stats64 *ons; |
875 | struct rtnl_link_stats64 *ns; /* netdev stats */ | |
876 | struct i40e_eth_stats *oes; | |
877 | struct i40e_eth_stats *es; /* device's eth stats */ | |
878 | u32 tx_restart, tx_busy; | |
bf00b376 | 879 | struct i40e_ring *p; |
41c445ff | 880 | u32 rx_page, rx_buf; |
bf00b376 AA |
881 | u64 bytes, packets; |
882 | unsigned int start; | |
2fc3d715 | 883 | u64 tx_linearize; |
41c445ff JB |
884 | u64 rx_p, rx_b; |
885 | u64 tx_p, tx_b; | |
41c445ff JB |
886 | u16 q; |
887 | ||
888 | if (test_bit(__I40E_DOWN, &vsi->state) || | |
889 | test_bit(__I40E_CONFIG_BUSY, &pf->state)) | |
890 | return; | |
891 | ||
892 | ns = i40e_get_vsi_stats_struct(vsi); | |
893 | ons = &vsi->net_stats_offsets; | |
894 | es = &vsi->eth_stats; | |
895 | oes = &vsi->eth_stats_offsets; | |
896 | ||
897 | /* Gather up the netdev and vsi stats that the driver collects | |
898 | * on the fly during packet processing | |
899 | */ | |
900 | rx_b = rx_p = 0; | |
901 | tx_b = tx_p = 0; | |
2fc3d715 | 902 | tx_restart = tx_busy = tx_linearize = 0; |
41c445ff JB |
903 | rx_page = 0; |
904 | rx_buf = 0; | |
980e9b11 | 905 | rcu_read_lock(); |
41c445ff | 906 | for (q = 0; q < vsi->num_queue_pairs; q++) { |
980e9b11 AD |
907 | /* locate Tx ring */ |
908 | p = ACCESS_ONCE(vsi->tx_rings[q]); | |
909 | ||
910 | do { | |
57a7744e | 911 | start = u64_stats_fetch_begin_irq(&p->syncp); |
980e9b11 AD |
912 | packets = p->stats.packets; |
913 | bytes = p->stats.bytes; | |
57a7744e | 914 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
980e9b11 AD |
915 | tx_b += bytes; |
916 | tx_p += packets; | |
917 | tx_restart += p->tx_stats.restart_queue; | |
918 | tx_busy += p->tx_stats.tx_busy; | |
2fc3d715 | 919 | tx_linearize += p->tx_stats.tx_linearize; |
41c445ff | 920 | |
980e9b11 AD |
921 | /* Rx queue is part of the same block as Tx queue */ |
922 | p = &p[1]; | |
923 | do { | |
57a7744e | 924 | start = u64_stats_fetch_begin_irq(&p->syncp); |
980e9b11 AD |
925 | packets = p->stats.packets; |
926 | bytes = p->stats.bytes; | |
57a7744e | 927 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
980e9b11 AD |
928 | rx_b += bytes; |
929 | rx_p += packets; | |
420136cc MW |
930 | rx_buf += p->rx_stats.alloc_buff_failed; |
931 | rx_page += p->rx_stats.alloc_page_failed; | |
41c445ff | 932 | } |
980e9b11 | 933 | rcu_read_unlock(); |
41c445ff JB |
934 | vsi->tx_restart = tx_restart; |
935 | vsi->tx_busy = tx_busy; | |
2fc3d715 | 936 | vsi->tx_linearize = tx_linearize; |
41c445ff JB |
937 | vsi->rx_page_failed = rx_page; |
938 | vsi->rx_buf_failed = rx_buf; | |
939 | ||
940 | ns->rx_packets = rx_p; | |
941 | ns->rx_bytes = rx_b; | |
942 | ns->tx_packets = tx_p; | |
943 | ns->tx_bytes = tx_b; | |
944 | ||
41c445ff | 945 | /* update netdev stats from eth stats */ |
7812fddc | 946 | i40e_update_eth_stats(vsi); |
41c445ff JB |
947 | ons->tx_errors = oes->tx_errors; |
948 | ns->tx_errors = es->tx_errors; | |
949 | ons->multicast = oes->rx_multicast; | |
950 | ns->multicast = es->rx_multicast; | |
41a9e55c SN |
951 | ons->rx_dropped = oes->rx_discards; |
952 | ns->rx_dropped = es->rx_discards; | |
41c445ff JB |
953 | ons->tx_dropped = oes->tx_discards; |
954 | ns->tx_dropped = es->tx_discards; | |
955 | ||
7812fddc | 956 | /* pull in a couple PF stats if this is the main vsi */ |
41c445ff | 957 | if (vsi == pf->vsi[pf->lan_vsi]) { |
7812fddc SN |
958 | ns->rx_crc_errors = pf->stats.crc_errors; |
959 | ns->rx_errors = pf->stats.crc_errors + pf->stats.illegal_bytes; | |
960 | ns->rx_length_errors = pf->stats.rx_length_errors; | |
961 | } | |
962 | } | |
41c445ff | 963 | |
7812fddc | 964 | /** |
b40c82e6 | 965 | * i40e_update_pf_stats - Update the PF statistics counters. |
7812fddc SN |
966 | * @pf: the PF to be updated |
967 | **/ | |
968 | static void i40e_update_pf_stats(struct i40e_pf *pf) | |
969 | { | |
970 | struct i40e_hw_port_stats *osd = &pf->stats_offsets; | |
971 | struct i40e_hw_port_stats *nsd = &pf->stats; | |
972 | struct i40e_hw *hw = &pf->hw; | |
973 | u32 val; | |
974 | int i; | |
41c445ff | 975 | |
7812fddc SN |
976 | i40e_stat_update48(hw, I40E_GLPRT_GORCH(hw->port), |
977 | I40E_GLPRT_GORCL(hw->port), | |
978 | pf->stat_offsets_loaded, | |
979 | &osd->eth.rx_bytes, &nsd->eth.rx_bytes); | |
980 | i40e_stat_update48(hw, I40E_GLPRT_GOTCH(hw->port), | |
981 | I40E_GLPRT_GOTCL(hw->port), | |
982 | pf->stat_offsets_loaded, | |
983 | &osd->eth.tx_bytes, &nsd->eth.tx_bytes); | |
984 | i40e_stat_update32(hw, I40E_GLPRT_RDPC(hw->port), | |
985 | pf->stat_offsets_loaded, | |
986 | &osd->eth.rx_discards, | |
987 | &nsd->eth.rx_discards); | |
532d283d SN |
988 | i40e_stat_update48(hw, I40E_GLPRT_UPRCH(hw->port), |
989 | I40E_GLPRT_UPRCL(hw->port), | |
990 | pf->stat_offsets_loaded, | |
991 | &osd->eth.rx_unicast, | |
992 | &nsd->eth.rx_unicast); | |
7812fddc SN |
993 | i40e_stat_update48(hw, I40E_GLPRT_MPRCH(hw->port), |
994 | I40E_GLPRT_MPRCL(hw->port), | |
995 | pf->stat_offsets_loaded, | |
996 | &osd->eth.rx_multicast, | |
997 | &nsd->eth.rx_multicast); | |
532d283d SN |
998 | i40e_stat_update48(hw, I40E_GLPRT_BPRCH(hw->port), |
999 | I40E_GLPRT_BPRCL(hw->port), | |
1000 | pf->stat_offsets_loaded, | |
1001 | &osd->eth.rx_broadcast, | |
1002 | &nsd->eth.rx_broadcast); | |
1003 | i40e_stat_update48(hw, I40E_GLPRT_UPTCH(hw->port), | |
1004 | I40E_GLPRT_UPTCL(hw->port), | |
1005 | pf->stat_offsets_loaded, | |
1006 | &osd->eth.tx_unicast, | |
1007 | &nsd->eth.tx_unicast); | |
1008 | i40e_stat_update48(hw, I40E_GLPRT_MPTCH(hw->port), | |
1009 | I40E_GLPRT_MPTCL(hw->port), | |
1010 | pf->stat_offsets_loaded, | |
1011 | &osd->eth.tx_multicast, | |
1012 | &nsd->eth.tx_multicast); | |
1013 | i40e_stat_update48(hw, I40E_GLPRT_BPTCH(hw->port), | |
1014 | I40E_GLPRT_BPTCL(hw->port), | |
1015 | pf->stat_offsets_loaded, | |
1016 | &osd->eth.tx_broadcast, | |
1017 | &nsd->eth.tx_broadcast); | |
41c445ff | 1018 | |
7812fddc SN |
1019 | i40e_stat_update32(hw, I40E_GLPRT_TDOLD(hw->port), |
1020 | pf->stat_offsets_loaded, | |
1021 | &osd->tx_dropped_link_down, | |
1022 | &nsd->tx_dropped_link_down); | |
41c445ff | 1023 | |
7812fddc SN |
1024 | i40e_stat_update32(hw, I40E_GLPRT_CRCERRS(hw->port), |
1025 | pf->stat_offsets_loaded, | |
1026 | &osd->crc_errors, &nsd->crc_errors); | |
41c445ff | 1027 | |
7812fddc SN |
1028 | i40e_stat_update32(hw, I40E_GLPRT_ILLERRC(hw->port), |
1029 | pf->stat_offsets_loaded, | |
1030 | &osd->illegal_bytes, &nsd->illegal_bytes); | |
41c445ff | 1031 | |
7812fddc SN |
1032 | i40e_stat_update32(hw, I40E_GLPRT_MLFC(hw->port), |
1033 | pf->stat_offsets_loaded, | |
1034 | &osd->mac_local_faults, | |
1035 | &nsd->mac_local_faults); | |
1036 | i40e_stat_update32(hw, I40E_GLPRT_MRFC(hw->port), | |
1037 | pf->stat_offsets_loaded, | |
1038 | &osd->mac_remote_faults, | |
1039 | &nsd->mac_remote_faults); | |
41c445ff | 1040 | |
7812fddc SN |
1041 | i40e_stat_update32(hw, I40E_GLPRT_RLEC(hw->port), |
1042 | pf->stat_offsets_loaded, | |
1043 | &osd->rx_length_errors, | |
1044 | &nsd->rx_length_errors); | |
41c445ff | 1045 | |
7812fddc SN |
1046 | i40e_stat_update32(hw, I40E_GLPRT_LXONRXC(hw->port), |
1047 | pf->stat_offsets_loaded, | |
1048 | &osd->link_xon_rx, &nsd->link_xon_rx); | |
1049 | i40e_stat_update32(hw, I40E_GLPRT_LXONTXC(hw->port), | |
1050 | pf->stat_offsets_loaded, | |
1051 | &osd->link_xon_tx, &nsd->link_xon_tx); | |
1052 | i40e_update_prio_xoff_rx(pf); /* handles I40E_GLPRT_LXOFFRXC */ | |
1053 | i40e_stat_update32(hw, I40E_GLPRT_LXOFFTXC(hw->port), | |
1054 | pf->stat_offsets_loaded, | |
1055 | &osd->link_xoff_tx, &nsd->link_xoff_tx); | |
41c445ff | 1056 | |
7812fddc SN |
1057 | for (i = 0; i < 8; i++) { |
1058 | i40e_stat_update32(hw, I40E_GLPRT_PXONRXC(hw->port, i), | |
41c445ff | 1059 | pf->stat_offsets_loaded, |
7812fddc SN |
1060 | &osd->priority_xon_rx[i], |
1061 | &nsd->priority_xon_rx[i]); | |
1062 | i40e_stat_update32(hw, I40E_GLPRT_PXONTXC(hw->port, i), | |
41c445ff | 1063 | pf->stat_offsets_loaded, |
7812fddc SN |
1064 | &osd->priority_xon_tx[i], |
1065 | &nsd->priority_xon_tx[i]); | |
1066 | i40e_stat_update32(hw, I40E_GLPRT_PXOFFTXC(hw->port, i), | |
41c445ff | 1067 | pf->stat_offsets_loaded, |
7812fddc SN |
1068 | &osd->priority_xoff_tx[i], |
1069 | &nsd->priority_xoff_tx[i]); | |
1070 | i40e_stat_update32(hw, | |
1071 | I40E_GLPRT_RXON2OFFCNT(hw->port, i), | |
bee5af7e | 1072 | pf->stat_offsets_loaded, |
7812fddc SN |
1073 | &osd->priority_xon_2_xoff[i], |
1074 | &nsd->priority_xon_2_xoff[i]); | |
41c445ff JB |
1075 | } |
1076 | ||
7812fddc SN |
1077 | i40e_stat_update48(hw, I40E_GLPRT_PRC64H(hw->port), |
1078 | I40E_GLPRT_PRC64L(hw->port), | |
1079 | pf->stat_offsets_loaded, | |
1080 | &osd->rx_size_64, &nsd->rx_size_64); | |
1081 | i40e_stat_update48(hw, I40E_GLPRT_PRC127H(hw->port), | |
1082 | I40E_GLPRT_PRC127L(hw->port), | |
1083 | pf->stat_offsets_loaded, | |
1084 | &osd->rx_size_127, &nsd->rx_size_127); | |
1085 | i40e_stat_update48(hw, I40E_GLPRT_PRC255H(hw->port), | |
1086 | I40E_GLPRT_PRC255L(hw->port), | |
1087 | pf->stat_offsets_loaded, | |
1088 | &osd->rx_size_255, &nsd->rx_size_255); | |
1089 | i40e_stat_update48(hw, I40E_GLPRT_PRC511H(hw->port), | |
1090 | I40E_GLPRT_PRC511L(hw->port), | |
1091 | pf->stat_offsets_loaded, | |
1092 | &osd->rx_size_511, &nsd->rx_size_511); | |
1093 | i40e_stat_update48(hw, I40E_GLPRT_PRC1023H(hw->port), | |
1094 | I40E_GLPRT_PRC1023L(hw->port), | |
1095 | pf->stat_offsets_loaded, | |
1096 | &osd->rx_size_1023, &nsd->rx_size_1023); | |
1097 | i40e_stat_update48(hw, I40E_GLPRT_PRC1522H(hw->port), | |
1098 | I40E_GLPRT_PRC1522L(hw->port), | |
1099 | pf->stat_offsets_loaded, | |
1100 | &osd->rx_size_1522, &nsd->rx_size_1522); | |
1101 | i40e_stat_update48(hw, I40E_GLPRT_PRC9522H(hw->port), | |
1102 | I40E_GLPRT_PRC9522L(hw->port), | |
1103 | pf->stat_offsets_loaded, | |
1104 | &osd->rx_size_big, &nsd->rx_size_big); | |
1105 | ||
1106 | i40e_stat_update48(hw, I40E_GLPRT_PTC64H(hw->port), | |
1107 | I40E_GLPRT_PTC64L(hw->port), | |
1108 | pf->stat_offsets_loaded, | |
1109 | &osd->tx_size_64, &nsd->tx_size_64); | |
1110 | i40e_stat_update48(hw, I40E_GLPRT_PTC127H(hw->port), | |
1111 | I40E_GLPRT_PTC127L(hw->port), | |
1112 | pf->stat_offsets_loaded, | |
1113 | &osd->tx_size_127, &nsd->tx_size_127); | |
1114 | i40e_stat_update48(hw, I40E_GLPRT_PTC255H(hw->port), | |
1115 | I40E_GLPRT_PTC255L(hw->port), | |
1116 | pf->stat_offsets_loaded, | |
1117 | &osd->tx_size_255, &nsd->tx_size_255); | |
1118 | i40e_stat_update48(hw, I40E_GLPRT_PTC511H(hw->port), | |
1119 | I40E_GLPRT_PTC511L(hw->port), | |
1120 | pf->stat_offsets_loaded, | |
1121 | &osd->tx_size_511, &nsd->tx_size_511); | |
1122 | i40e_stat_update48(hw, I40E_GLPRT_PTC1023H(hw->port), | |
1123 | I40E_GLPRT_PTC1023L(hw->port), | |
1124 | pf->stat_offsets_loaded, | |
1125 | &osd->tx_size_1023, &nsd->tx_size_1023); | |
1126 | i40e_stat_update48(hw, I40E_GLPRT_PTC1522H(hw->port), | |
1127 | I40E_GLPRT_PTC1522L(hw->port), | |
1128 | pf->stat_offsets_loaded, | |
1129 | &osd->tx_size_1522, &nsd->tx_size_1522); | |
1130 | i40e_stat_update48(hw, I40E_GLPRT_PTC9522H(hw->port), | |
1131 | I40E_GLPRT_PTC9522L(hw->port), | |
1132 | pf->stat_offsets_loaded, | |
1133 | &osd->tx_size_big, &nsd->tx_size_big); | |
1134 | ||
1135 | i40e_stat_update32(hw, I40E_GLPRT_RUC(hw->port), | |
1136 | pf->stat_offsets_loaded, | |
1137 | &osd->rx_undersize, &nsd->rx_undersize); | |
1138 | i40e_stat_update32(hw, I40E_GLPRT_RFC(hw->port), | |
1139 | pf->stat_offsets_loaded, | |
1140 | &osd->rx_fragments, &nsd->rx_fragments); | |
1141 | i40e_stat_update32(hw, I40E_GLPRT_ROC(hw->port), | |
1142 | pf->stat_offsets_loaded, | |
1143 | &osd->rx_oversize, &nsd->rx_oversize); | |
1144 | i40e_stat_update32(hw, I40E_GLPRT_RJC(hw->port), | |
1145 | pf->stat_offsets_loaded, | |
1146 | &osd->rx_jabber, &nsd->rx_jabber); | |
1147 | ||
433c47de | 1148 | /* FDIR stats */ |
0bf4b1b0 ASJ |
1149 | i40e_stat_update32(hw, |
1150 | I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf->hw.pf_id)), | |
433c47de ASJ |
1151 | pf->stat_offsets_loaded, |
1152 | &osd->fd_atr_match, &nsd->fd_atr_match); | |
0bf4b1b0 ASJ |
1153 | i40e_stat_update32(hw, |
1154 | I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf->hw.pf_id)), | |
433c47de ASJ |
1155 | pf->stat_offsets_loaded, |
1156 | &osd->fd_sb_match, &nsd->fd_sb_match); | |
60ccd45c ASJ |
1157 | i40e_stat_update32(hw, |
1158 | I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf->hw.pf_id)), | |
1159 | pf->stat_offsets_loaded, | |
1160 | &osd->fd_atr_tunnel_match, &nsd->fd_atr_tunnel_match); | |
433c47de | 1161 | |
7812fddc SN |
1162 | val = rd32(hw, I40E_PRTPM_EEE_STAT); |
1163 | nsd->tx_lpi_status = | |
1164 | (val & I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK) >> | |
1165 | I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT; | |
1166 | nsd->rx_lpi_status = | |
1167 | (val & I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK) >> | |
1168 | I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT; | |
1169 | i40e_stat_update32(hw, I40E_PRTPM_TLPIC, | |
1170 | pf->stat_offsets_loaded, | |
1171 | &osd->tx_lpi_count, &nsd->tx_lpi_count); | |
1172 | i40e_stat_update32(hw, I40E_PRTPM_RLPIC, | |
1173 | pf->stat_offsets_loaded, | |
1174 | &osd->rx_lpi_count, &nsd->rx_lpi_count); | |
1175 | ||
d0389e51 ASJ |
1176 | if (pf->flags & I40E_FLAG_FD_SB_ENABLED && |
1177 | !(pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) | |
1178 | nsd->fd_sb_status = true; | |
1179 | else | |
1180 | nsd->fd_sb_status = false; | |
1181 | ||
1182 | if (pf->flags & I40E_FLAG_FD_ATR_ENABLED && | |
1183 | !(pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) | |
1184 | nsd->fd_atr_status = true; | |
1185 | else | |
1186 | nsd->fd_atr_status = false; | |
1187 | ||
41c445ff JB |
1188 | pf->stat_offsets_loaded = true; |
1189 | } | |
1190 | ||
7812fddc SN |
1191 | /** |
1192 | * i40e_update_stats - Update the various statistics counters. | |
1193 | * @vsi: the VSI to be updated | |
1194 | * | |
1195 | * Update the various stats for this VSI and its related entities. | |
1196 | **/ | |
1197 | void i40e_update_stats(struct i40e_vsi *vsi) | |
1198 | { | |
1199 | struct i40e_pf *pf = vsi->back; | |
1200 | ||
1201 | if (vsi == pf->vsi[pf->lan_vsi]) | |
1202 | i40e_update_pf_stats(pf); | |
1203 | ||
1204 | i40e_update_vsi_stats(vsi); | |
38e00438 VD |
1205 | #ifdef I40E_FCOE |
1206 | i40e_update_fcoe_stats(vsi); | |
1207 | #endif | |
7812fddc SN |
1208 | } |
1209 | ||
41c445ff JB |
1210 | /** |
1211 | * i40e_find_filter - Search VSI filter list for specific mac/vlan filter | |
1212 | * @vsi: the VSI to be searched | |
1213 | * @macaddr: the MAC address | |
1214 | * @vlan: the vlan | |
b40c82e6 | 1215 | * @is_vf: make sure its a VF filter, else doesn't matter |
41c445ff JB |
1216 | * @is_netdev: make sure its a netdev filter, else doesn't matter |
1217 | * | |
1218 | * Returns ptr to the filter object or NULL | |
1219 | **/ | |
1220 | static struct i40e_mac_filter *i40e_find_filter(struct i40e_vsi *vsi, | |
1221 | u8 *macaddr, s16 vlan, | |
1222 | bool is_vf, bool is_netdev) | |
1223 | { | |
1224 | struct i40e_mac_filter *f; | |
1225 | ||
1226 | if (!vsi || !macaddr) | |
1227 | return NULL; | |
1228 | ||
1229 | list_for_each_entry(f, &vsi->mac_filter_list, list) { | |
1230 | if ((ether_addr_equal(macaddr, f->macaddr)) && | |
1231 | (vlan == f->vlan) && | |
1232 | (!is_vf || f->is_vf) && | |
1233 | (!is_netdev || f->is_netdev)) | |
1234 | return f; | |
1235 | } | |
1236 | return NULL; | |
1237 | } | |
1238 | ||
1239 | /** | |
1240 | * i40e_find_mac - Find a mac addr in the macvlan filters list | |
1241 | * @vsi: the VSI to be searched | |
1242 | * @macaddr: the MAC address we are searching for | |
b40c82e6 | 1243 | * @is_vf: make sure its a VF filter, else doesn't matter |
41c445ff JB |
1244 | * @is_netdev: make sure its a netdev filter, else doesn't matter |
1245 | * | |
1246 | * Returns the first filter with the provided MAC address or NULL if | |
1247 | * MAC address was not found | |
1248 | **/ | |
1249 | struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr, | |
1250 | bool is_vf, bool is_netdev) | |
1251 | { | |
1252 | struct i40e_mac_filter *f; | |
1253 | ||
1254 | if (!vsi || !macaddr) | |
1255 | return NULL; | |
1256 | ||
1257 | list_for_each_entry(f, &vsi->mac_filter_list, list) { | |
1258 | if ((ether_addr_equal(macaddr, f->macaddr)) && | |
1259 | (!is_vf || f->is_vf) && | |
1260 | (!is_netdev || f->is_netdev)) | |
1261 | return f; | |
1262 | } | |
1263 | return NULL; | |
1264 | } | |
1265 | ||
1266 | /** | |
1267 | * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode | |
1268 | * @vsi: the VSI to be searched | |
1269 | * | |
1270 | * Returns true if VSI is in vlan mode or false otherwise | |
1271 | **/ | |
1272 | bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi) | |
1273 | { | |
1274 | struct i40e_mac_filter *f; | |
1275 | ||
1276 | /* Only -1 for all the filters denotes not in vlan mode | |
1277 | * so we have to go through all the list in order to make sure | |
1278 | */ | |
1279 | list_for_each_entry(f, &vsi->mac_filter_list, list) { | |
d9b68f8a | 1280 | if (f->vlan >= 0 || vsi->info.pvid) |
41c445ff JB |
1281 | return true; |
1282 | } | |
1283 | ||
1284 | return false; | |
1285 | } | |
1286 | ||
1287 | /** | |
1288 | * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans | |
1289 | * @vsi: the VSI to be searched | |
1290 | * @macaddr: the mac address to be filtered | |
b40c82e6 | 1291 | * @is_vf: true if it is a VF |
41c445ff JB |
1292 | * @is_netdev: true if it is a netdev |
1293 | * | |
1294 | * Goes through all the macvlan filters and adds a | |
1295 | * macvlan filter for each unique vlan that already exists | |
1296 | * | |
1297 | * Returns first filter found on success, else NULL | |
1298 | **/ | |
1299 | struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr, | |
1300 | bool is_vf, bool is_netdev) | |
1301 | { | |
1302 | struct i40e_mac_filter *f; | |
1303 | ||
1304 | list_for_each_entry(f, &vsi->mac_filter_list, list) { | |
ecbb44e8 MW |
1305 | if (vsi->info.pvid) |
1306 | f->vlan = le16_to_cpu(vsi->info.pvid); | |
41c445ff JB |
1307 | if (!i40e_find_filter(vsi, macaddr, f->vlan, |
1308 | is_vf, is_netdev)) { | |
1309 | if (!i40e_add_filter(vsi, macaddr, f->vlan, | |
8fb905b3 | 1310 | is_vf, is_netdev)) |
41c445ff JB |
1311 | return NULL; |
1312 | } | |
1313 | } | |
1314 | ||
1315 | return list_first_entry_or_null(&vsi->mac_filter_list, | |
1316 | struct i40e_mac_filter, list); | |
1317 | } | |
1318 | ||
8c27d42e GR |
1319 | /** |
1320 | * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM | |
1321 | * @vsi: the PF Main VSI - inappropriate for any other VSI | |
1322 | * @macaddr: the MAC address | |
30650cc5 SN |
1323 | * |
1324 | * Some older firmware configurations set up a default promiscuous VLAN | |
1325 | * filter that needs to be removed. | |
8c27d42e | 1326 | **/ |
30650cc5 | 1327 | static int i40e_rm_default_mac_filter(struct i40e_vsi *vsi, u8 *macaddr) |
8c27d42e GR |
1328 | { |
1329 | struct i40e_aqc_remove_macvlan_element_data element; | |
1330 | struct i40e_pf *pf = vsi->back; | |
f1c7e72e | 1331 | i40e_status ret; |
8c27d42e GR |
1332 | |
1333 | /* Only appropriate for the PF main VSI */ | |
1334 | if (vsi->type != I40E_VSI_MAIN) | |
30650cc5 | 1335 | return -EINVAL; |
8c27d42e | 1336 | |
30650cc5 | 1337 | memset(&element, 0, sizeof(element)); |
8c27d42e GR |
1338 | ether_addr_copy(element.mac_addr, macaddr); |
1339 | element.vlan_tag = 0; | |
1340 | element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH | | |
1341 | I40E_AQC_MACVLAN_DEL_IGNORE_VLAN; | |
f1c7e72e SN |
1342 | ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid, &element, 1, NULL); |
1343 | if (ret) | |
30650cc5 SN |
1344 | return -ENOENT; |
1345 | ||
1346 | return 0; | |
8c27d42e GR |
1347 | } |
1348 | ||
41c445ff JB |
1349 | /** |
1350 | * i40e_add_filter - Add a mac/vlan filter to the VSI | |
1351 | * @vsi: the VSI to be searched | |
1352 | * @macaddr: the MAC address | |
1353 | * @vlan: the vlan | |
b40c82e6 | 1354 | * @is_vf: make sure its a VF filter, else doesn't matter |
41c445ff JB |
1355 | * @is_netdev: make sure its a netdev filter, else doesn't matter |
1356 | * | |
1357 | * Returns ptr to the filter object or NULL when no memory available. | |
21659035 KP |
1358 | * |
1359 | * NOTE: This function is expected to be called with mac_filter_list_lock | |
1360 | * being held. | |
41c445ff JB |
1361 | **/ |
1362 | struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, | |
1363 | u8 *macaddr, s16 vlan, | |
1364 | bool is_vf, bool is_netdev) | |
1365 | { | |
1366 | struct i40e_mac_filter *f; | |
1367 | ||
1368 | if (!vsi || !macaddr) | |
1369 | return NULL; | |
1370 | ||
1371 | f = i40e_find_filter(vsi, macaddr, vlan, is_vf, is_netdev); | |
1372 | if (!f) { | |
1373 | f = kzalloc(sizeof(*f), GFP_ATOMIC); | |
1374 | if (!f) | |
1375 | goto add_filter_out; | |
1376 | ||
9a173901 | 1377 | ether_addr_copy(f->macaddr, macaddr); |
41c445ff JB |
1378 | f->vlan = vlan; |
1379 | f->changed = true; | |
1380 | ||
1381 | INIT_LIST_HEAD(&f->list); | |
1382 | list_add(&f->list, &vsi->mac_filter_list); | |
1383 | } | |
1384 | ||
1385 | /* increment counter and add a new flag if needed */ | |
1386 | if (is_vf) { | |
1387 | if (!f->is_vf) { | |
1388 | f->is_vf = true; | |
1389 | f->counter++; | |
1390 | } | |
1391 | } else if (is_netdev) { | |
1392 | if (!f->is_netdev) { | |
1393 | f->is_netdev = true; | |
1394 | f->counter++; | |
1395 | } | |
1396 | } else { | |
1397 | f->counter++; | |
1398 | } | |
1399 | ||
1400 | /* changed tells sync_filters_subtask to | |
1401 | * push the filter down to the firmware | |
1402 | */ | |
1403 | if (f->changed) { | |
1404 | vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; | |
1405 | vsi->back->flags |= I40E_FLAG_FILTER_SYNC; | |
1406 | } | |
1407 | ||
1408 | add_filter_out: | |
1409 | return f; | |
1410 | } | |
1411 | ||
1412 | /** | |
1413 | * i40e_del_filter - Remove a mac/vlan filter from the VSI | |
1414 | * @vsi: the VSI to be searched | |
1415 | * @macaddr: the MAC address | |
1416 | * @vlan: the vlan | |
b40c82e6 | 1417 | * @is_vf: make sure it's a VF filter, else doesn't matter |
41c445ff | 1418 | * @is_netdev: make sure it's a netdev filter, else doesn't matter |
21659035 KP |
1419 | * |
1420 | * NOTE: This function is expected to be called with mac_filter_list_lock | |
1421 | * being held. | |
41c445ff JB |
1422 | **/ |
1423 | void i40e_del_filter(struct i40e_vsi *vsi, | |
1424 | u8 *macaddr, s16 vlan, | |
1425 | bool is_vf, bool is_netdev) | |
1426 | { | |
1427 | struct i40e_mac_filter *f; | |
1428 | ||
1429 | if (!vsi || !macaddr) | |
1430 | return; | |
1431 | ||
1432 | f = i40e_find_filter(vsi, macaddr, vlan, is_vf, is_netdev); | |
1433 | if (!f || f->counter == 0) | |
1434 | return; | |
1435 | ||
1436 | if (is_vf) { | |
1437 | if (f->is_vf) { | |
1438 | f->is_vf = false; | |
1439 | f->counter--; | |
1440 | } | |
1441 | } else if (is_netdev) { | |
1442 | if (f->is_netdev) { | |
1443 | f->is_netdev = false; | |
1444 | f->counter--; | |
1445 | } | |
1446 | } else { | |
b40c82e6 | 1447 | /* make sure we don't remove a filter in use by VF or netdev */ |
41c445ff | 1448 | int min_f = 0; |
6995b36c | 1449 | |
41c445ff JB |
1450 | min_f += (f->is_vf ? 1 : 0); |
1451 | min_f += (f->is_netdev ? 1 : 0); | |
1452 | ||
1453 | if (f->counter > min_f) | |
1454 | f->counter--; | |
1455 | } | |
1456 | ||
1457 | /* counter == 0 tells sync_filters_subtask to | |
1458 | * remove the filter from the firmware's list | |
1459 | */ | |
1460 | if (f->counter == 0) { | |
1461 | f->changed = true; | |
1462 | vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; | |
1463 | vsi->back->flags |= I40E_FLAG_FILTER_SYNC; | |
1464 | } | |
1465 | } | |
1466 | ||
1467 | /** | |
1468 | * i40e_set_mac - NDO callback to set mac address | |
1469 | * @netdev: network interface device structure | |
1470 | * @p: pointer to an address structure | |
1471 | * | |
1472 | * Returns 0 on success, negative on failure | |
1473 | **/ | |
38e00438 VD |
1474 | #ifdef I40E_FCOE |
1475 | int i40e_set_mac(struct net_device *netdev, void *p) | |
1476 | #else | |
41c445ff | 1477 | static int i40e_set_mac(struct net_device *netdev, void *p) |
38e00438 | 1478 | #endif |
41c445ff JB |
1479 | { |
1480 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
1481 | struct i40e_vsi *vsi = np->vsi; | |
30650cc5 SN |
1482 | struct i40e_pf *pf = vsi->back; |
1483 | struct i40e_hw *hw = &pf->hw; | |
41c445ff JB |
1484 | struct sockaddr *addr = p; |
1485 | struct i40e_mac_filter *f; | |
1486 | ||
1487 | if (!is_valid_ether_addr(addr->sa_data)) | |
1488 | return -EADDRNOTAVAIL; | |
1489 | ||
30650cc5 SN |
1490 | if (ether_addr_equal(netdev->dev_addr, addr->sa_data)) { |
1491 | netdev_info(netdev, "already using mac address %pM\n", | |
1492 | addr->sa_data); | |
1493 | return 0; | |
1494 | } | |
41c445ff | 1495 | |
80f6428f ASJ |
1496 | if (test_bit(__I40E_DOWN, &vsi->back->state) || |
1497 | test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state)) | |
1498 | return -EADDRNOTAVAIL; | |
1499 | ||
30650cc5 SN |
1500 | if (ether_addr_equal(hw->mac.addr, addr->sa_data)) |
1501 | netdev_info(netdev, "returning to hw mac address %pM\n", | |
1502 | hw->mac.addr); | |
1503 | else | |
1504 | netdev_info(netdev, "set new mac address %pM\n", addr->sa_data); | |
1505 | ||
41c445ff JB |
1506 | if (vsi->type == I40E_VSI_MAIN) { |
1507 | i40e_status ret; | |
6995b36c | 1508 | |
41c445ff | 1509 | ret = i40e_aq_mac_address_write(&vsi->back->hw, |
cc41222c | 1510 | I40E_AQC_WRITE_TYPE_LAA_WOL, |
41c445ff JB |
1511 | addr->sa_data, NULL); |
1512 | if (ret) { | |
1513 | netdev_info(netdev, | |
1514 | "Addr change for Main VSI failed: %d\n", | |
1515 | ret); | |
1516 | return -EADDRNOTAVAIL; | |
1517 | } | |
41c445ff JB |
1518 | } |
1519 | ||
30650cc5 SN |
1520 | if (ether_addr_equal(netdev->dev_addr, hw->mac.addr)) { |
1521 | struct i40e_aqc_remove_macvlan_element_data element; | |
6c8ad1ba | 1522 | |
30650cc5 SN |
1523 | memset(&element, 0, sizeof(element)); |
1524 | ether_addr_copy(element.mac_addr, netdev->dev_addr); | |
1525 | element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH; | |
1526 | i40e_aq_remove_macvlan(&pf->hw, vsi->seid, &element, 1, NULL); | |
1527 | } else { | |
21659035 | 1528 | spin_lock_bh(&vsi->mac_filter_list_lock); |
6c8ad1ba SN |
1529 | i40e_del_filter(vsi, netdev->dev_addr, I40E_VLAN_ANY, |
1530 | false, false); | |
21659035 | 1531 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
6c8ad1ba | 1532 | } |
41c445ff | 1533 | |
30650cc5 SN |
1534 | if (ether_addr_equal(addr->sa_data, hw->mac.addr)) { |
1535 | struct i40e_aqc_add_macvlan_element_data element; | |
1536 | ||
1537 | memset(&element, 0, sizeof(element)); | |
1538 | ether_addr_copy(element.mac_addr, hw->mac.addr); | |
1539 | element.flags = cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH); | |
1540 | i40e_aq_add_macvlan(&pf->hw, vsi->seid, &element, 1, NULL); | |
1541 | } else { | |
21659035 | 1542 | spin_lock_bh(&vsi->mac_filter_list_lock); |
30650cc5 SN |
1543 | f = i40e_add_filter(vsi, addr->sa_data, I40E_VLAN_ANY, |
1544 | false, false); | |
1545 | if (f) | |
1546 | f->is_laa = true; | |
21659035 | 1547 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
30650cc5 SN |
1548 | } |
1549 | ||
30e2561b | 1550 | i40e_sync_vsi_filters(vsi, false); |
30650cc5 | 1551 | ether_addr_copy(netdev->dev_addr, addr->sa_data); |
41c445ff JB |
1552 | |
1553 | return 0; | |
1554 | } | |
1555 | ||
1556 | /** | |
1557 | * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc | |
1558 | * @vsi: the VSI being setup | |
1559 | * @ctxt: VSI context structure | |
1560 | * @enabled_tc: Enabled TCs bitmap | |
1561 | * @is_add: True if called before Add VSI | |
1562 | * | |
1563 | * Setup VSI queue mapping for enabled traffic classes. | |
1564 | **/ | |
38e00438 VD |
1565 | #ifdef I40E_FCOE |
1566 | void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, | |
1567 | struct i40e_vsi_context *ctxt, | |
1568 | u8 enabled_tc, | |
1569 | bool is_add) | |
1570 | #else | |
41c445ff JB |
1571 | static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, |
1572 | struct i40e_vsi_context *ctxt, | |
1573 | u8 enabled_tc, | |
1574 | bool is_add) | |
38e00438 | 1575 | #endif |
41c445ff JB |
1576 | { |
1577 | struct i40e_pf *pf = vsi->back; | |
1578 | u16 sections = 0; | |
1579 | u8 netdev_tc = 0; | |
1580 | u16 numtc = 0; | |
1581 | u16 qcount; | |
1582 | u8 offset; | |
1583 | u16 qmap; | |
1584 | int i; | |
4e3b35b0 | 1585 | u16 num_tc_qps = 0; |
41c445ff JB |
1586 | |
1587 | sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID; | |
1588 | offset = 0; | |
1589 | ||
1590 | if (enabled_tc && (vsi->back->flags & I40E_FLAG_DCB_ENABLED)) { | |
1591 | /* Find numtc from enabled TC bitmap */ | |
1592 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
41a1d04b | 1593 | if (enabled_tc & BIT_ULL(i)) /* TC is enabled */ |
41c445ff JB |
1594 | numtc++; |
1595 | } | |
1596 | if (!numtc) { | |
1597 | dev_warn(&pf->pdev->dev, "DCB is enabled but no TC enabled, forcing TC0\n"); | |
1598 | numtc = 1; | |
1599 | } | |
1600 | } else { | |
1601 | /* At least TC0 is enabled in case of non-DCB case */ | |
1602 | numtc = 1; | |
1603 | } | |
1604 | ||
1605 | vsi->tc_config.numtc = numtc; | |
1606 | vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1; | |
4e3b35b0 | 1607 | /* Number of queues per enabled TC */ |
7f9ff476 AS |
1608 | /* In MFP case we can have a much lower count of MSIx |
1609 | * vectors available and so we need to lower the used | |
1610 | * q count. | |
1611 | */ | |
26cdc443 ASJ |
1612 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) |
1613 | qcount = min_t(int, vsi->alloc_queue_pairs, pf->num_lan_msix); | |
1614 | else | |
1615 | qcount = vsi->alloc_queue_pairs; | |
7f9ff476 | 1616 | num_tc_qps = qcount / numtc; |
e25d00b8 | 1617 | num_tc_qps = min_t(int, num_tc_qps, i40e_pf_get_max_q_per_tc(pf)); |
41c445ff JB |
1618 | |
1619 | /* Setup queue offset/count for all TCs for given VSI */ | |
1620 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
1621 | /* See if the given TC is enabled for the given VSI */ | |
41a1d04b JB |
1622 | if (vsi->tc_config.enabled_tc & BIT_ULL(i)) { |
1623 | /* TC is enabled */ | |
41c445ff JB |
1624 | int pow, num_qps; |
1625 | ||
41c445ff JB |
1626 | switch (vsi->type) { |
1627 | case I40E_VSI_MAIN: | |
4e3b35b0 | 1628 | qcount = min_t(int, pf->rss_size, num_tc_qps); |
41c445ff | 1629 | break; |
38e00438 VD |
1630 | #ifdef I40E_FCOE |
1631 | case I40E_VSI_FCOE: | |
1632 | qcount = num_tc_qps; | |
1633 | break; | |
1634 | #endif | |
41c445ff JB |
1635 | case I40E_VSI_FDIR: |
1636 | case I40E_VSI_SRIOV: | |
1637 | case I40E_VSI_VMDQ2: | |
1638 | default: | |
4e3b35b0 | 1639 | qcount = num_tc_qps; |
41c445ff JB |
1640 | WARN_ON(i != 0); |
1641 | break; | |
1642 | } | |
4e3b35b0 NP |
1643 | vsi->tc_config.tc_info[i].qoffset = offset; |
1644 | vsi->tc_config.tc_info[i].qcount = qcount; | |
41c445ff | 1645 | |
1e200e4a | 1646 | /* find the next higher power-of-2 of num queue pairs */ |
4e3b35b0 | 1647 | num_qps = qcount; |
41c445ff | 1648 | pow = 0; |
41a1d04b | 1649 | while (num_qps && (BIT_ULL(pow) < qcount)) { |
41c445ff JB |
1650 | pow++; |
1651 | num_qps >>= 1; | |
1652 | } | |
1653 | ||
1654 | vsi->tc_config.tc_info[i].netdev_tc = netdev_tc++; | |
1655 | qmap = | |
1656 | (offset << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) | | |
1657 | (pow << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT); | |
1658 | ||
4e3b35b0 | 1659 | offset += qcount; |
41c445ff JB |
1660 | } else { |
1661 | /* TC is not enabled so set the offset to | |
1662 | * default queue and allocate one queue | |
1663 | * for the given TC. | |
1664 | */ | |
1665 | vsi->tc_config.tc_info[i].qoffset = 0; | |
1666 | vsi->tc_config.tc_info[i].qcount = 1; | |
1667 | vsi->tc_config.tc_info[i].netdev_tc = 0; | |
1668 | ||
1669 | qmap = 0; | |
1670 | } | |
1671 | ctxt->info.tc_mapping[i] = cpu_to_le16(qmap); | |
1672 | } | |
1673 | ||
1674 | /* Set actual Tx/Rx queue pairs */ | |
1675 | vsi->num_queue_pairs = offset; | |
9a3bd2f1 ASJ |
1676 | if ((vsi->type == I40E_VSI_MAIN) && (numtc == 1)) { |
1677 | if (vsi->req_queue_pairs > 0) | |
1678 | vsi->num_queue_pairs = vsi->req_queue_pairs; | |
26cdc443 | 1679 | else if (pf->flags & I40E_FLAG_MSIX_ENABLED) |
9a3bd2f1 ASJ |
1680 | vsi->num_queue_pairs = pf->num_lan_msix; |
1681 | } | |
41c445ff JB |
1682 | |
1683 | /* Scheduler section valid can only be set for ADD VSI */ | |
1684 | if (is_add) { | |
1685 | sections |= I40E_AQ_VSI_PROP_SCHED_VALID; | |
1686 | ||
1687 | ctxt->info.up_enable_bits = enabled_tc; | |
1688 | } | |
1689 | if (vsi->type == I40E_VSI_SRIOV) { | |
1690 | ctxt->info.mapping_flags |= | |
1691 | cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG); | |
1692 | for (i = 0; i < vsi->num_queue_pairs; i++) | |
1693 | ctxt->info.queue_mapping[i] = | |
1694 | cpu_to_le16(vsi->base_queue + i); | |
1695 | } else { | |
1696 | ctxt->info.mapping_flags |= | |
1697 | cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG); | |
1698 | ctxt->info.queue_mapping[0] = cpu_to_le16(vsi->base_queue); | |
1699 | } | |
1700 | ctxt->info.valid_sections |= cpu_to_le16(sections); | |
1701 | } | |
1702 | ||
1703 | /** | |
1704 | * i40e_set_rx_mode - NDO callback to set the netdev filters | |
1705 | * @netdev: network interface device structure | |
1706 | **/ | |
38e00438 VD |
1707 | #ifdef I40E_FCOE |
1708 | void i40e_set_rx_mode(struct net_device *netdev) | |
1709 | #else | |
41c445ff | 1710 | static void i40e_set_rx_mode(struct net_device *netdev) |
38e00438 | 1711 | #endif |
41c445ff JB |
1712 | { |
1713 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
1714 | struct i40e_mac_filter *f, *ftmp; | |
1715 | struct i40e_vsi *vsi = np->vsi; | |
1716 | struct netdev_hw_addr *uca; | |
1717 | struct netdev_hw_addr *mca; | |
1718 | struct netdev_hw_addr *ha; | |
1719 | ||
21659035 KP |
1720 | spin_lock_bh(&vsi->mac_filter_list_lock); |
1721 | ||
41c445ff JB |
1722 | /* add addr if not already in the filter list */ |
1723 | netdev_for_each_uc_addr(uca, netdev) { | |
1724 | if (!i40e_find_mac(vsi, uca->addr, false, true)) { | |
1725 | if (i40e_is_vsi_in_vlan(vsi)) | |
1726 | i40e_put_mac_in_vlan(vsi, uca->addr, | |
1727 | false, true); | |
1728 | else | |
1729 | i40e_add_filter(vsi, uca->addr, I40E_VLAN_ANY, | |
1730 | false, true); | |
1731 | } | |
1732 | } | |
1733 | ||
1734 | netdev_for_each_mc_addr(mca, netdev) { | |
1735 | if (!i40e_find_mac(vsi, mca->addr, false, true)) { | |
1736 | if (i40e_is_vsi_in_vlan(vsi)) | |
1737 | i40e_put_mac_in_vlan(vsi, mca->addr, | |
1738 | false, true); | |
1739 | else | |
1740 | i40e_add_filter(vsi, mca->addr, I40E_VLAN_ANY, | |
1741 | false, true); | |
1742 | } | |
1743 | } | |
1744 | ||
1745 | /* remove filter if not in netdev list */ | |
1746 | list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { | |
41c445ff JB |
1747 | |
1748 | if (!f->is_netdev) | |
1749 | continue; | |
1750 | ||
2f41f335 SN |
1751 | netdev_for_each_mc_addr(mca, netdev) |
1752 | if (ether_addr_equal(mca->addr, f->macaddr)) | |
1753 | goto bottom_of_search_loop; | |
41c445ff | 1754 | |
2f41f335 SN |
1755 | netdev_for_each_uc_addr(uca, netdev) |
1756 | if (ether_addr_equal(uca->addr, f->macaddr)) | |
1757 | goto bottom_of_search_loop; | |
1758 | ||
1759 | for_each_dev_addr(netdev, ha) | |
1760 | if (ether_addr_equal(ha->addr, f->macaddr)) | |
1761 | goto bottom_of_search_loop; | |
1762 | ||
1763 | /* f->macaddr wasn't found in uc, mc, or ha list so delete it */ | |
1764 | i40e_del_filter(vsi, f->macaddr, I40E_VLAN_ANY, false, true); | |
1765 | ||
1766 | bottom_of_search_loop: | |
1767 | continue; | |
41c445ff | 1768 | } |
21659035 | 1769 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
1770 | |
1771 | /* check for other flag changes */ | |
1772 | if (vsi->current_netdev_flags != vsi->netdev->flags) { | |
1773 | vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; | |
1774 | vsi->back->flags |= I40E_FLAG_FILTER_SYNC; | |
1775 | } | |
1776 | } | |
1777 | ||
21659035 KP |
1778 | /** |
1779 | * i40e_mac_filter_entry_clone - Clones a MAC filter entry | |
1780 | * @src: source MAC filter entry to be clones | |
1781 | * | |
1782 | * Returns the pointer to newly cloned MAC filter entry or NULL | |
1783 | * in case of error | |
1784 | **/ | |
1785 | static struct i40e_mac_filter *i40e_mac_filter_entry_clone( | |
1786 | struct i40e_mac_filter *src) | |
1787 | { | |
1788 | struct i40e_mac_filter *f; | |
1789 | ||
1790 | f = kzalloc(sizeof(*f), GFP_ATOMIC); | |
1791 | if (!f) | |
1792 | return NULL; | |
1793 | *f = *src; | |
1794 | ||
1795 | INIT_LIST_HEAD(&f->list); | |
1796 | ||
1797 | return f; | |
1798 | } | |
1799 | ||
1800 | /** | |
1801 | * i40e_undo_del_filter_entries - Undo the changes made to MAC filter entries | |
1802 | * @vsi: pointer to vsi struct | |
1803 | * @from: Pointer to list which contains MAC filter entries - changes to | |
1804 | * those entries needs to be undone. | |
1805 | * | |
1806 | * MAC filter entries from list were slated to be removed from device. | |
1807 | **/ | |
1808 | static void i40e_undo_del_filter_entries(struct i40e_vsi *vsi, | |
1809 | struct list_head *from) | |
1810 | { | |
1811 | struct i40e_mac_filter *f, *ftmp; | |
1812 | ||
1813 | list_for_each_entry_safe(f, ftmp, from, list) { | |
1814 | f->changed = true; | |
1815 | /* Move the element back into MAC filter list*/ | |
1816 | list_move_tail(&f->list, &vsi->mac_filter_list); | |
1817 | } | |
1818 | } | |
1819 | ||
1820 | /** | |
1821 | * i40e_undo_add_filter_entries - Undo the changes made to MAC filter entries | |
1822 | * @vsi: pointer to vsi struct | |
1823 | * | |
1824 | * MAC filter entries from list were slated to be added from device. | |
1825 | **/ | |
1826 | static void i40e_undo_add_filter_entries(struct i40e_vsi *vsi) | |
1827 | { | |
1828 | struct i40e_mac_filter *f, *ftmp; | |
1829 | ||
1830 | list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { | |
1831 | if (!f->changed && f->counter) | |
1832 | f->changed = true; | |
1833 | } | |
1834 | } | |
1835 | ||
1836 | /** | |
1837 | * i40e_cleanup_add_list - Deletes the element from add list and release | |
1838 | * memory | |
1839 | * @add_list: Pointer to list which contains MAC filter entries | |
1840 | **/ | |
1841 | static void i40e_cleanup_add_list(struct list_head *add_list) | |
1842 | { | |
1843 | struct i40e_mac_filter *f, *ftmp; | |
1844 | ||
1845 | list_for_each_entry_safe(f, ftmp, add_list, list) { | |
1846 | list_del(&f->list); | |
1847 | kfree(f); | |
1848 | } | |
1849 | } | |
1850 | ||
41c445ff JB |
1851 | /** |
1852 | * i40e_sync_vsi_filters - Update the VSI filter list to the HW | |
1853 | * @vsi: ptr to the VSI | |
30e2561b | 1854 | * @grab_rtnl: whether RTNL needs to be grabbed |
41c445ff JB |
1855 | * |
1856 | * Push any outstanding VSI filter changes through the AdminQ. | |
1857 | * | |
1858 | * Returns 0 or error value | |
1859 | **/ | |
30e2561b | 1860 | int i40e_sync_vsi_filters(struct i40e_vsi *vsi, bool grab_rtnl) |
41c445ff | 1861 | { |
21659035 KP |
1862 | struct list_head tmp_del_list, tmp_add_list; |
1863 | struct i40e_mac_filter *f, *ftmp, *fclone; | |
41c445ff JB |
1864 | bool promisc_forced_on = false; |
1865 | bool add_happened = false; | |
1866 | int filter_list_len = 0; | |
1867 | u32 changed_flags = 0; | |
21659035 | 1868 | bool err_cond = false; |
f1c7e72e | 1869 | i40e_status ret = 0; |
41c445ff JB |
1870 | struct i40e_pf *pf; |
1871 | int num_add = 0; | |
1872 | int num_del = 0; | |
f1c7e72e | 1873 | int aq_err = 0; |
41c445ff JB |
1874 | u16 cmd_flags; |
1875 | ||
1876 | /* empty array typed pointers, kcalloc later */ | |
1877 | struct i40e_aqc_add_macvlan_element_data *add_list; | |
1878 | struct i40e_aqc_remove_macvlan_element_data *del_list; | |
1879 | ||
1880 | while (test_and_set_bit(__I40E_CONFIG_BUSY, &vsi->state)) | |
1881 | usleep_range(1000, 2000); | |
1882 | pf = vsi->back; | |
1883 | ||
1884 | if (vsi->netdev) { | |
1885 | changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags; | |
1886 | vsi->current_netdev_flags = vsi->netdev->flags; | |
1887 | } | |
1888 | ||
21659035 KP |
1889 | INIT_LIST_HEAD(&tmp_del_list); |
1890 | INIT_LIST_HEAD(&tmp_add_list); | |
1891 | ||
41c445ff JB |
1892 | if (vsi->flags & I40E_VSI_FLAG_FILTER_CHANGED) { |
1893 | vsi->flags &= ~I40E_VSI_FLAG_FILTER_CHANGED; | |
1894 | ||
21659035 | 1895 | spin_lock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
1896 | list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { |
1897 | if (!f->changed) | |
1898 | continue; | |
1899 | ||
1900 | if (f->counter != 0) | |
1901 | continue; | |
1902 | f->changed = false; | |
21659035 KP |
1903 | |
1904 | /* Move the element into temporary del_list */ | |
1905 | list_move_tail(&f->list, &tmp_del_list); | |
1906 | } | |
1907 | ||
1908 | list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { | |
1909 | if (!f->changed) | |
1910 | continue; | |
1911 | ||
1912 | if (f->counter == 0) | |
1913 | continue; | |
1914 | f->changed = false; | |
1915 | ||
1916 | /* Clone MAC filter entry and add into temporary list */ | |
1917 | fclone = i40e_mac_filter_entry_clone(f); | |
1918 | if (!fclone) { | |
1919 | err_cond = true; | |
1920 | break; | |
1921 | } | |
1922 | list_add_tail(&fclone->list, &tmp_add_list); | |
1923 | } | |
1924 | ||
1925 | /* if failed to clone MAC filter entry - undo */ | |
1926 | if (err_cond) { | |
1927 | i40e_undo_del_filter_entries(vsi, &tmp_del_list); | |
1928 | i40e_undo_add_filter_entries(vsi); | |
1929 | } | |
1930 | spin_unlock_bh(&vsi->mac_filter_list_lock); | |
1931 | ||
1932 | if (err_cond) | |
1933 | i40e_cleanup_add_list(&tmp_add_list); | |
1934 | } | |
1935 | ||
1936 | /* Now process 'del_list' outside the lock */ | |
1937 | if (!list_empty(&tmp_del_list)) { | |
1938 | filter_list_len = pf->hw.aq.asq_buf_size / | |
1939 | sizeof(struct i40e_aqc_remove_macvlan_element_data); | |
1940 | del_list = kcalloc(filter_list_len, | |
1941 | sizeof(struct i40e_aqc_remove_macvlan_element_data), | |
1942 | GFP_KERNEL); | |
1943 | if (!del_list) { | |
1944 | i40e_cleanup_add_list(&tmp_add_list); | |
1945 | ||
1946 | /* Undo VSI's MAC filter entry element updates */ | |
1947 | spin_lock_bh(&vsi->mac_filter_list_lock); | |
1948 | i40e_undo_del_filter_entries(vsi, &tmp_del_list); | |
1949 | i40e_undo_add_filter_entries(vsi); | |
1950 | spin_unlock_bh(&vsi->mac_filter_list_lock); | |
1951 | return -ENOMEM; | |
1952 | } | |
1953 | ||
1954 | list_for_each_entry_safe(f, ftmp, &tmp_del_list, list) { | |
41c445ff JB |
1955 | cmd_flags = 0; |
1956 | ||
1957 | /* add to delete list */ | |
9a173901 | 1958 | ether_addr_copy(del_list[num_del].mac_addr, f->macaddr); |
41c445ff JB |
1959 | del_list[num_del].vlan_tag = |
1960 | cpu_to_le16((u16)(f->vlan == | |
1961 | I40E_VLAN_ANY ? 0 : f->vlan)); | |
1962 | ||
41c445ff JB |
1963 | cmd_flags |= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH; |
1964 | del_list[num_del].flags = cmd_flags; | |
1965 | num_del++; | |
1966 | ||
41c445ff JB |
1967 | /* flush a full buffer */ |
1968 | if (num_del == filter_list_len) { | |
f1c7e72e SN |
1969 | ret = i40e_aq_remove_macvlan(&pf->hw, |
1970 | vsi->seid, del_list, num_del, | |
1971 | NULL); | |
1972 | aq_err = pf->hw.aq.asq_last_status; | |
41c445ff JB |
1973 | num_del = 0; |
1974 | memset(del_list, 0, sizeof(*del_list)); | |
1975 | ||
f1c7e72e | 1976 | if (ret && aq_err != I40E_AQ_RC_ENOENT) |
21659035 KP |
1977 | dev_err(&pf->pdev->dev, |
1978 | "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n", | |
1979 | i40e_stat_str(&pf->hw, ret), | |
1980 | i40e_aq_str(&pf->hw, aq_err)); | |
41c445ff | 1981 | } |
21659035 KP |
1982 | /* Release memory for MAC filter entries which were |
1983 | * synced up with HW. | |
1984 | */ | |
1985 | list_del(&f->list); | |
1986 | kfree(f); | |
41c445ff | 1987 | } |
21659035 | 1988 | |
41c445ff | 1989 | if (num_del) { |
f1c7e72e | 1990 | ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid, |
41c445ff | 1991 | del_list, num_del, NULL); |
f1c7e72e | 1992 | aq_err = pf->hw.aq.asq_last_status; |
41c445ff JB |
1993 | num_del = 0; |
1994 | ||
f1c7e72e | 1995 | if (ret && aq_err != I40E_AQ_RC_ENOENT) |
41c445ff | 1996 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
1997 | "ignoring delete macvlan error, err %s aq_err %s\n", |
1998 | i40e_stat_str(&pf->hw, ret), | |
1999 | i40e_aq_str(&pf->hw, aq_err)); | |
41c445ff JB |
2000 | } |
2001 | ||
2002 | kfree(del_list); | |
2003 | del_list = NULL; | |
21659035 KP |
2004 | } |
2005 | ||
2006 | if (!list_empty(&tmp_add_list)) { | |
41c445ff JB |
2007 | |
2008 | /* do all the adds now */ | |
2009 | filter_list_len = pf->hw.aq.asq_buf_size / | |
2010 | sizeof(struct i40e_aqc_add_macvlan_element_data), | |
2011 | add_list = kcalloc(filter_list_len, | |
2012 | sizeof(struct i40e_aqc_add_macvlan_element_data), | |
2013 | GFP_KERNEL); | |
21659035 KP |
2014 | if (!add_list) { |
2015 | /* Purge element from temporary lists */ | |
2016 | i40e_cleanup_add_list(&tmp_add_list); | |
2017 | ||
2018 | /* Undo add filter entries from VSI MAC filter list */ | |
2019 | spin_lock_bh(&vsi->mac_filter_list_lock); | |
2020 | i40e_undo_add_filter_entries(vsi); | |
2021 | spin_unlock_bh(&vsi->mac_filter_list_lock); | |
41c445ff | 2022 | return -ENOMEM; |
21659035 | 2023 | } |
41c445ff | 2024 | |
21659035 | 2025 | list_for_each_entry_safe(f, ftmp, &tmp_add_list, list) { |
41c445ff | 2026 | |
41c445ff JB |
2027 | add_happened = true; |
2028 | cmd_flags = 0; | |
2029 | ||
2030 | /* add to add array */ | |
9a173901 | 2031 | ether_addr_copy(add_list[num_add].mac_addr, f->macaddr); |
41c445ff JB |
2032 | add_list[num_add].vlan_tag = |
2033 | cpu_to_le16( | |
2034 | (u16)(f->vlan == I40E_VLAN_ANY ? 0 : f->vlan)); | |
2035 | add_list[num_add].queue_number = 0; | |
2036 | ||
2037 | cmd_flags |= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH; | |
41c445ff JB |
2038 | add_list[num_add].flags = cpu_to_le16(cmd_flags); |
2039 | num_add++; | |
2040 | ||
2041 | /* flush a full buffer */ | |
2042 | if (num_add == filter_list_len) { | |
f1c7e72e SN |
2043 | ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid, |
2044 | add_list, num_add, | |
2045 | NULL); | |
2046 | aq_err = pf->hw.aq.asq_last_status; | |
41c445ff JB |
2047 | num_add = 0; |
2048 | ||
f1c7e72e | 2049 | if (ret) |
41c445ff JB |
2050 | break; |
2051 | memset(add_list, 0, sizeof(*add_list)); | |
2052 | } | |
21659035 KP |
2053 | /* Entries from tmp_add_list were cloned from MAC |
2054 | * filter list, hence clean those cloned entries | |
2055 | */ | |
2056 | list_del(&f->list); | |
2057 | kfree(f); | |
41c445ff | 2058 | } |
21659035 | 2059 | |
41c445ff | 2060 | if (num_add) { |
f1c7e72e SN |
2061 | ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid, |
2062 | add_list, num_add, NULL); | |
2063 | aq_err = pf->hw.aq.asq_last_status; | |
41c445ff JB |
2064 | num_add = 0; |
2065 | } | |
2066 | kfree(add_list); | |
2067 | add_list = NULL; | |
2068 | ||
f1c7e72e | 2069 | if (add_happened && ret && aq_err != I40E_AQ_RC_EINVAL) { |
41c445ff | 2070 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
2071 | "add filter failed, err %s aq_err %s\n", |
2072 | i40e_stat_str(&pf->hw, ret), | |
2073 | i40e_aq_str(&pf->hw, aq_err)); | |
41c445ff JB |
2074 | if ((pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOSPC) && |
2075 | !test_bit(__I40E_FILTER_OVERFLOW_PROMISC, | |
2076 | &vsi->state)) { | |
2077 | promisc_forced_on = true; | |
2078 | set_bit(__I40E_FILTER_OVERFLOW_PROMISC, | |
2079 | &vsi->state); | |
2080 | dev_info(&pf->pdev->dev, "promiscuous mode forced on\n"); | |
2081 | } | |
2082 | } | |
2083 | } | |
2084 | ||
2085 | /* check for changes in promiscuous modes */ | |
2086 | if (changed_flags & IFF_ALLMULTI) { | |
2087 | bool cur_multipromisc; | |
6995b36c | 2088 | |
41c445ff | 2089 | cur_multipromisc = !!(vsi->current_netdev_flags & IFF_ALLMULTI); |
f1c7e72e SN |
2090 | ret = i40e_aq_set_vsi_multicast_promiscuous(&vsi->back->hw, |
2091 | vsi->seid, | |
2092 | cur_multipromisc, | |
2093 | NULL); | |
2094 | if (ret) | |
41c445ff | 2095 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
2096 | "set multi promisc failed, err %s aq_err %s\n", |
2097 | i40e_stat_str(&pf->hw, ret), | |
2098 | i40e_aq_str(&pf->hw, | |
2099 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
2100 | } |
2101 | if ((changed_flags & IFF_PROMISC) || promisc_forced_on) { | |
2102 | bool cur_promisc; | |
6995b36c | 2103 | |
41c445ff JB |
2104 | cur_promisc = (!!(vsi->current_netdev_flags & IFF_PROMISC) || |
2105 | test_bit(__I40E_FILTER_OVERFLOW_PROMISC, | |
2106 | &vsi->state)); | |
92faef85 ASJ |
2107 | if (vsi->type == I40E_VSI_MAIN && pf->lan_veb != I40E_NO_VEB) { |
2108 | /* set defport ON for Main VSI instead of true promisc | |
2109 | * this way we will get all unicast/multicast and VLAN | |
2110 | * promisc behavior but will not get VF or VMDq traffic | |
2111 | * replicated on the Main VSI. | |
2112 | */ | |
2113 | if (pf->cur_promisc != cur_promisc) { | |
2114 | pf->cur_promisc = cur_promisc; | |
30e2561b AS |
2115 | if (grab_rtnl) |
2116 | i40e_do_reset_safe(pf, | |
2117 | BIT(__I40E_PF_RESET_REQUESTED)); | |
2118 | else | |
2119 | i40e_do_reset(pf, | |
92faef85 ASJ |
2120 | BIT(__I40E_PF_RESET_REQUESTED)); |
2121 | } | |
2122 | } else { | |
2123 | ret = i40e_aq_set_vsi_unicast_promiscuous( | |
2124 | &vsi->back->hw, | |
f1c7e72e SN |
2125 | vsi->seid, |
2126 | cur_promisc, NULL); | |
92faef85 ASJ |
2127 | if (ret) |
2128 | dev_info(&pf->pdev->dev, | |
2129 | "set unicast promisc failed, err %d, aq_err %d\n", | |
2130 | ret, pf->hw.aq.asq_last_status); | |
2131 | ret = i40e_aq_set_vsi_multicast_promiscuous( | |
2132 | &vsi->back->hw, | |
2133 | vsi->seid, | |
2134 | cur_promisc, NULL); | |
2135 | if (ret) | |
2136 | dev_info(&pf->pdev->dev, | |
2137 | "set multicast promisc failed, err %d, aq_err %d\n", | |
2138 | ret, pf->hw.aq.asq_last_status); | |
2139 | } | |
f1c7e72e SN |
2140 | ret = i40e_aq_set_vsi_broadcast(&vsi->back->hw, |
2141 | vsi->seid, | |
2142 | cur_promisc, NULL); | |
2143 | if (ret) | |
1a10370a | 2144 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
2145 | "set brdcast promisc failed, err %s, aq_err %s\n", |
2146 | i40e_stat_str(&pf->hw, ret), | |
2147 | i40e_aq_str(&pf->hw, | |
2148 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
2149 | } |
2150 | ||
2151 | clear_bit(__I40E_CONFIG_BUSY, &vsi->state); | |
2152 | return 0; | |
2153 | } | |
2154 | ||
2155 | /** | |
2156 | * i40e_sync_filters_subtask - Sync the VSI filter list with HW | |
2157 | * @pf: board private structure | |
2158 | **/ | |
2159 | static void i40e_sync_filters_subtask(struct i40e_pf *pf) | |
2160 | { | |
2161 | int v; | |
2162 | ||
2163 | if (!pf || !(pf->flags & I40E_FLAG_FILTER_SYNC)) | |
2164 | return; | |
2165 | pf->flags &= ~I40E_FLAG_FILTER_SYNC; | |
2166 | ||
505682cd | 2167 | for (v = 0; v < pf->num_alloc_vsi; v++) { |
41c445ff JB |
2168 | if (pf->vsi[v] && |
2169 | (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED)) | |
30e2561b | 2170 | i40e_sync_vsi_filters(pf->vsi[v], true); |
41c445ff JB |
2171 | } |
2172 | } | |
2173 | ||
2174 | /** | |
2175 | * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit | |
2176 | * @netdev: network interface device structure | |
2177 | * @new_mtu: new value for maximum frame size | |
2178 | * | |
2179 | * Returns 0 on success, negative on failure | |
2180 | **/ | |
2181 | static int i40e_change_mtu(struct net_device *netdev, int new_mtu) | |
2182 | { | |
2183 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
61a46a4c | 2184 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; |
41c445ff JB |
2185 | struct i40e_vsi *vsi = np->vsi; |
2186 | ||
2187 | /* MTU < 68 is an error and causes problems on some kernels */ | |
2188 | if ((new_mtu < 68) || (max_frame > I40E_MAX_RXBUFFER)) | |
2189 | return -EINVAL; | |
2190 | ||
2191 | netdev_info(netdev, "changing MTU from %d to %d\n", | |
2192 | netdev->mtu, new_mtu); | |
2193 | netdev->mtu = new_mtu; | |
2194 | if (netif_running(netdev)) | |
2195 | i40e_vsi_reinit_locked(vsi); | |
2196 | ||
2197 | return 0; | |
2198 | } | |
2199 | ||
beb0dff1 JK |
2200 | /** |
2201 | * i40e_ioctl - Access the hwtstamp interface | |
2202 | * @netdev: network interface device structure | |
2203 | * @ifr: interface request data | |
2204 | * @cmd: ioctl command | |
2205 | **/ | |
2206 | int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) | |
2207 | { | |
2208 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
2209 | struct i40e_pf *pf = np->vsi->back; | |
2210 | ||
2211 | switch (cmd) { | |
2212 | case SIOCGHWTSTAMP: | |
2213 | return i40e_ptp_get_ts_config(pf, ifr); | |
2214 | case SIOCSHWTSTAMP: | |
2215 | return i40e_ptp_set_ts_config(pf, ifr); | |
2216 | default: | |
2217 | return -EOPNOTSUPP; | |
2218 | } | |
2219 | } | |
2220 | ||
41c445ff JB |
2221 | /** |
2222 | * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI | |
2223 | * @vsi: the vsi being adjusted | |
2224 | **/ | |
2225 | void i40e_vlan_stripping_enable(struct i40e_vsi *vsi) | |
2226 | { | |
2227 | struct i40e_vsi_context ctxt; | |
2228 | i40e_status ret; | |
2229 | ||
2230 | if ((vsi->info.valid_sections & | |
2231 | cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) && | |
2232 | ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0)) | |
2233 | return; /* already enabled */ | |
2234 | ||
2235 | vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID); | |
2236 | vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_ALL | | |
2237 | I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH; | |
2238 | ||
2239 | ctxt.seid = vsi->seid; | |
1a2f6248 | 2240 | ctxt.info = vsi->info; |
41c445ff JB |
2241 | ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); |
2242 | if (ret) { | |
2243 | dev_info(&vsi->back->pdev->dev, | |
f1c7e72e SN |
2244 | "update vlan stripping failed, err %s aq_err %s\n", |
2245 | i40e_stat_str(&vsi->back->hw, ret), | |
2246 | i40e_aq_str(&vsi->back->hw, | |
2247 | vsi->back->hw.aq.asq_last_status)); | |
41c445ff JB |
2248 | } |
2249 | } | |
2250 | ||
2251 | /** | |
2252 | * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI | |
2253 | * @vsi: the vsi being adjusted | |
2254 | **/ | |
2255 | void i40e_vlan_stripping_disable(struct i40e_vsi *vsi) | |
2256 | { | |
2257 | struct i40e_vsi_context ctxt; | |
2258 | i40e_status ret; | |
2259 | ||
2260 | if ((vsi->info.valid_sections & | |
2261 | cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) && | |
2262 | ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) == | |
2263 | I40E_AQ_VSI_PVLAN_EMOD_MASK)) | |
2264 | return; /* already disabled */ | |
2265 | ||
2266 | vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID); | |
2267 | vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_ALL | | |
2268 | I40E_AQ_VSI_PVLAN_EMOD_NOTHING; | |
2269 | ||
2270 | ctxt.seid = vsi->seid; | |
1a2f6248 | 2271 | ctxt.info = vsi->info; |
41c445ff JB |
2272 | ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); |
2273 | if (ret) { | |
2274 | dev_info(&vsi->back->pdev->dev, | |
f1c7e72e SN |
2275 | "update vlan stripping failed, err %s aq_err %s\n", |
2276 | i40e_stat_str(&vsi->back->hw, ret), | |
2277 | i40e_aq_str(&vsi->back->hw, | |
2278 | vsi->back->hw.aq.asq_last_status)); | |
41c445ff JB |
2279 | } |
2280 | } | |
2281 | ||
2282 | /** | |
2283 | * i40e_vlan_rx_register - Setup or shutdown vlan offload | |
2284 | * @netdev: network interface to be adjusted | |
2285 | * @features: netdev features to test if VLAN offload is enabled or not | |
2286 | **/ | |
2287 | static void i40e_vlan_rx_register(struct net_device *netdev, u32 features) | |
2288 | { | |
2289 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
2290 | struct i40e_vsi *vsi = np->vsi; | |
2291 | ||
2292 | if (features & NETIF_F_HW_VLAN_CTAG_RX) | |
2293 | i40e_vlan_stripping_enable(vsi); | |
2294 | else | |
2295 | i40e_vlan_stripping_disable(vsi); | |
2296 | } | |
2297 | ||
2298 | /** | |
2299 | * i40e_vsi_add_vlan - Add vsi membership for given vlan | |
2300 | * @vsi: the vsi being configured | |
2301 | * @vid: vlan id to be added (0 = untagged only , -1 = any) | |
2302 | **/ | |
2303 | int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) | |
2304 | { | |
2305 | struct i40e_mac_filter *f, *add_f; | |
2306 | bool is_netdev, is_vf; | |
41c445ff JB |
2307 | |
2308 | is_vf = (vsi->type == I40E_VSI_SRIOV); | |
2309 | is_netdev = !!(vsi->netdev); | |
2310 | ||
21659035 KP |
2311 | /* Locked once because all functions invoked below iterates list*/ |
2312 | spin_lock_bh(&vsi->mac_filter_list_lock); | |
2313 | ||
41c445ff JB |
2314 | if (is_netdev) { |
2315 | add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, vid, | |
2316 | is_vf, is_netdev); | |
2317 | if (!add_f) { | |
2318 | dev_info(&vsi->back->pdev->dev, | |
2319 | "Could not add vlan filter %d for %pM\n", | |
2320 | vid, vsi->netdev->dev_addr); | |
21659035 | 2321 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
2322 | return -ENOMEM; |
2323 | } | |
2324 | } | |
2325 | ||
2326 | list_for_each_entry(f, &vsi->mac_filter_list, list) { | |
2327 | add_f = i40e_add_filter(vsi, f->macaddr, vid, is_vf, is_netdev); | |
2328 | if (!add_f) { | |
2329 | dev_info(&vsi->back->pdev->dev, | |
2330 | "Could not add vlan filter %d for %pM\n", | |
2331 | vid, f->macaddr); | |
21659035 | 2332 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
2333 | return -ENOMEM; |
2334 | } | |
2335 | } | |
2336 | ||
41c445ff JB |
2337 | /* Now if we add a vlan tag, make sure to check if it is the first |
2338 | * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag" | |
2339 | * with 0, so we now accept untagged and specified tagged traffic | |
2340 | * (and not any taged and untagged) | |
2341 | */ | |
2342 | if (vid > 0) { | |
2343 | if (is_netdev && i40e_find_filter(vsi, vsi->netdev->dev_addr, | |
2344 | I40E_VLAN_ANY, | |
2345 | is_vf, is_netdev)) { | |
2346 | i40e_del_filter(vsi, vsi->netdev->dev_addr, | |
2347 | I40E_VLAN_ANY, is_vf, is_netdev); | |
2348 | add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, 0, | |
2349 | is_vf, is_netdev); | |
2350 | if (!add_f) { | |
2351 | dev_info(&vsi->back->pdev->dev, | |
2352 | "Could not add filter 0 for %pM\n", | |
2353 | vsi->netdev->dev_addr); | |
21659035 | 2354 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
2355 | return -ENOMEM; |
2356 | } | |
2357 | } | |
8d82a7c5 | 2358 | } |
41c445ff | 2359 | |
8d82a7c5 GR |
2360 | /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */ |
2361 | if (vid > 0 && !vsi->info.pvid) { | |
41c445ff | 2362 | list_for_each_entry(f, &vsi->mac_filter_list, list) { |
21659035 KP |
2363 | if (!i40e_find_filter(vsi, f->macaddr, I40E_VLAN_ANY, |
2364 | is_vf, is_netdev)) | |
2365 | continue; | |
2366 | i40e_del_filter(vsi, f->macaddr, I40E_VLAN_ANY, | |
2367 | is_vf, is_netdev); | |
2368 | add_f = i40e_add_filter(vsi, f->macaddr, | |
2369 | 0, is_vf, is_netdev); | |
2370 | if (!add_f) { | |
2371 | dev_info(&vsi->back->pdev->dev, | |
2372 | "Could not add filter 0 for %pM\n", | |
2373 | f->macaddr); | |
2374 | spin_unlock_bh(&vsi->mac_filter_list_lock); | |
2375 | return -ENOMEM; | |
41c445ff JB |
2376 | } |
2377 | } | |
41c445ff JB |
2378 | } |
2379 | ||
21659035 KP |
2380 | /* Make sure to release before sync_vsi_filter because that |
2381 | * function will lock/unlock as necessary | |
2382 | */ | |
2383 | spin_unlock_bh(&vsi->mac_filter_list_lock); | |
2384 | ||
80f6428f ASJ |
2385 | if (test_bit(__I40E_DOWN, &vsi->back->state) || |
2386 | test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state)) | |
2387 | return 0; | |
2388 | ||
30e2561b | 2389 | return i40e_sync_vsi_filters(vsi, false); |
41c445ff JB |
2390 | } |
2391 | ||
2392 | /** | |
2393 | * i40e_vsi_kill_vlan - Remove vsi membership for given vlan | |
2394 | * @vsi: the vsi being configured | |
2395 | * @vid: vlan id to be removed (0 = untagged only , -1 = any) | |
078b5876 JB |
2396 | * |
2397 | * Return: 0 on success or negative otherwise | |
41c445ff JB |
2398 | **/ |
2399 | int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) | |
2400 | { | |
2401 | struct net_device *netdev = vsi->netdev; | |
2402 | struct i40e_mac_filter *f, *add_f; | |
2403 | bool is_vf, is_netdev; | |
2404 | int filter_count = 0; | |
41c445ff JB |
2405 | |
2406 | is_vf = (vsi->type == I40E_VSI_SRIOV); | |
2407 | is_netdev = !!(netdev); | |
2408 | ||
21659035 KP |
2409 | /* Locked once because all functions invoked below iterates list */ |
2410 | spin_lock_bh(&vsi->mac_filter_list_lock); | |
2411 | ||
41c445ff JB |
2412 | if (is_netdev) |
2413 | i40e_del_filter(vsi, netdev->dev_addr, vid, is_vf, is_netdev); | |
2414 | ||
2415 | list_for_each_entry(f, &vsi->mac_filter_list, list) | |
2416 | i40e_del_filter(vsi, f->macaddr, vid, is_vf, is_netdev); | |
2417 | ||
41c445ff JB |
2418 | /* go through all the filters for this VSI and if there is only |
2419 | * vid == 0 it means there are no other filters, so vid 0 must | |
2420 | * be replaced with -1. This signifies that we should from now | |
2421 | * on accept any traffic (with any tag present, or untagged) | |
2422 | */ | |
2423 | list_for_each_entry(f, &vsi->mac_filter_list, list) { | |
2424 | if (is_netdev) { | |
2425 | if (f->vlan && | |
2426 | ether_addr_equal(netdev->dev_addr, f->macaddr)) | |
2427 | filter_count++; | |
2428 | } | |
2429 | ||
2430 | if (f->vlan) | |
2431 | filter_count++; | |
2432 | } | |
2433 | ||
2434 | if (!filter_count && is_netdev) { | |
2435 | i40e_del_filter(vsi, netdev->dev_addr, 0, is_vf, is_netdev); | |
2436 | f = i40e_add_filter(vsi, netdev->dev_addr, I40E_VLAN_ANY, | |
2437 | is_vf, is_netdev); | |
2438 | if (!f) { | |
2439 | dev_info(&vsi->back->pdev->dev, | |
2440 | "Could not add filter %d for %pM\n", | |
2441 | I40E_VLAN_ANY, netdev->dev_addr); | |
21659035 | 2442 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
2443 | return -ENOMEM; |
2444 | } | |
2445 | } | |
2446 | ||
2447 | if (!filter_count) { | |
2448 | list_for_each_entry(f, &vsi->mac_filter_list, list) { | |
2449 | i40e_del_filter(vsi, f->macaddr, 0, is_vf, is_netdev); | |
2450 | add_f = i40e_add_filter(vsi, f->macaddr, I40E_VLAN_ANY, | |
21659035 | 2451 | is_vf, is_netdev); |
41c445ff JB |
2452 | if (!add_f) { |
2453 | dev_info(&vsi->back->pdev->dev, | |
2454 | "Could not add filter %d for %pM\n", | |
2455 | I40E_VLAN_ANY, f->macaddr); | |
21659035 | 2456 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
2457 | return -ENOMEM; |
2458 | } | |
2459 | } | |
2460 | } | |
2461 | ||
21659035 KP |
2462 | /* Make sure to release before sync_vsi_filter because that |
2463 | * function with lock/unlock as necessary | |
2464 | */ | |
2465 | spin_unlock_bh(&vsi->mac_filter_list_lock); | |
2466 | ||
80f6428f ASJ |
2467 | if (test_bit(__I40E_DOWN, &vsi->back->state) || |
2468 | test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state)) | |
2469 | return 0; | |
2470 | ||
30e2561b | 2471 | return i40e_sync_vsi_filters(vsi, false); |
41c445ff JB |
2472 | } |
2473 | ||
2474 | /** | |
2475 | * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload | |
2476 | * @netdev: network interface to be adjusted | |
2477 | * @vid: vlan id to be added | |
078b5876 JB |
2478 | * |
2479 | * net_device_ops implementation for adding vlan ids | |
41c445ff | 2480 | **/ |
38e00438 VD |
2481 | #ifdef I40E_FCOE |
2482 | int i40e_vlan_rx_add_vid(struct net_device *netdev, | |
2483 | __always_unused __be16 proto, u16 vid) | |
2484 | #else | |
41c445ff JB |
2485 | static int i40e_vlan_rx_add_vid(struct net_device *netdev, |
2486 | __always_unused __be16 proto, u16 vid) | |
38e00438 | 2487 | #endif |
41c445ff JB |
2488 | { |
2489 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
2490 | struct i40e_vsi *vsi = np->vsi; | |
078b5876 | 2491 | int ret = 0; |
41c445ff JB |
2492 | |
2493 | if (vid > 4095) | |
078b5876 JB |
2494 | return -EINVAL; |
2495 | ||
2496 | netdev_info(netdev, "adding %pM vid=%d\n", netdev->dev_addr, vid); | |
41c445ff | 2497 | |
6982d429 ASJ |
2498 | /* If the network stack called us with vid = 0 then |
2499 | * it is asking to receive priority tagged packets with | |
2500 | * vlan id 0. Our HW receives them by default when configured | |
2501 | * to receive untagged packets so there is no need to add an | |
2502 | * extra filter for vlan 0 tagged packets. | |
41c445ff | 2503 | */ |
6982d429 ASJ |
2504 | if (vid) |
2505 | ret = i40e_vsi_add_vlan(vsi, vid); | |
41c445ff | 2506 | |
078b5876 JB |
2507 | if (!ret && (vid < VLAN_N_VID)) |
2508 | set_bit(vid, vsi->active_vlans); | |
41c445ff | 2509 | |
078b5876 | 2510 | return ret; |
41c445ff JB |
2511 | } |
2512 | ||
2513 | /** | |
2514 | * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload | |
2515 | * @netdev: network interface to be adjusted | |
2516 | * @vid: vlan id to be removed | |
078b5876 | 2517 | * |
fdfd943e | 2518 | * net_device_ops implementation for removing vlan ids |
41c445ff | 2519 | **/ |
38e00438 VD |
2520 | #ifdef I40E_FCOE |
2521 | int i40e_vlan_rx_kill_vid(struct net_device *netdev, | |
2522 | __always_unused __be16 proto, u16 vid) | |
2523 | #else | |
41c445ff JB |
2524 | static int i40e_vlan_rx_kill_vid(struct net_device *netdev, |
2525 | __always_unused __be16 proto, u16 vid) | |
38e00438 | 2526 | #endif |
41c445ff JB |
2527 | { |
2528 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
2529 | struct i40e_vsi *vsi = np->vsi; | |
2530 | ||
078b5876 JB |
2531 | netdev_info(netdev, "removing %pM vid=%d\n", netdev->dev_addr, vid); |
2532 | ||
41c445ff JB |
2533 | /* return code is ignored as there is nothing a user |
2534 | * can do about failure to remove and a log message was | |
078b5876 | 2535 | * already printed from the other function |
41c445ff JB |
2536 | */ |
2537 | i40e_vsi_kill_vlan(vsi, vid); | |
2538 | ||
2539 | clear_bit(vid, vsi->active_vlans); | |
078b5876 | 2540 | |
41c445ff JB |
2541 | return 0; |
2542 | } | |
2543 | ||
2544 | /** | |
2545 | * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up | |
2546 | * @vsi: the vsi being brought back up | |
2547 | **/ | |
2548 | static void i40e_restore_vlan(struct i40e_vsi *vsi) | |
2549 | { | |
2550 | u16 vid; | |
2551 | ||
2552 | if (!vsi->netdev) | |
2553 | return; | |
2554 | ||
2555 | i40e_vlan_rx_register(vsi->netdev, vsi->netdev->features); | |
2556 | ||
2557 | for_each_set_bit(vid, vsi->active_vlans, VLAN_N_VID) | |
2558 | i40e_vlan_rx_add_vid(vsi->netdev, htons(ETH_P_8021Q), | |
2559 | vid); | |
2560 | } | |
2561 | ||
2562 | /** | |
2563 | * i40e_vsi_add_pvid - Add pvid for the VSI | |
2564 | * @vsi: the vsi being adjusted | |
2565 | * @vid: the vlan id to set as a PVID | |
2566 | **/ | |
dcae29be | 2567 | int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid) |
41c445ff JB |
2568 | { |
2569 | struct i40e_vsi_context ctxt; | |
f1c7e72e | 2570 | i40e_status ret; |
41c445ff JB |
2571 | |
2572 | vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID); | |
2573 | vsi->info.pvid = cpu_to_le16(vid); | |
6c12fcbf GR |
2574 | vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_TAGGED | |
2575 | I40E_AQ_VSI_PVLAN_INSERT_PVID | | |
b774c7dd | 2576 | I40E_AQ_VSI_PVLAN_EMOD_STR; |
41c445ff JB |
2577 | |
2578 | ctxt.seid = vsi->seid; | |
1a2f6248 | 2579 | ctxt.info = vsi->info; |
f1c7e72e SN |
2580 | ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); |
2581 | if (ret) { | |
41c445ff | 2582 | dev_info(&vsi->back->pdev->dev, |
f1c7e72e SN |
2583 | "add pvid failed, err %s aq_err %s\n", |
2584 | i40e_stat_str(&vsi->back->hw, ret), | |
2585 | i40e_aq_str(&vsi->back->hw, | |
2586 | vsi->back->hw.aq.asq_last_status)); | |
dcae29be | 2587 | return -ENOENT; |
41c445ff JB |
2588 | } |
2589 | ||
dcae29be | 2590 | return 0; |
41c445ff JB |
2591 | } |
2592 | ||
2593 | /** | |
2594 | * i40e_vsi_remove_pvid - Remove the pvid from the VSI | |
2595 | * @vsi: the vsi being adjusted | |
2596 | * | |
2597 | * Just use the vlan_rx_register() service to put it back to normal | |
2598 | **/ | |
2599 | void i40e_vsi_remove_pvid(struct i40e_vsi *vsi) | |
2600 | { | |
6c12fcbf GR |
2601 | i40e_vlan_stripping_disable(vsi); |
2602 | ||
41c445ff | 2603 | vsi->info.pvid = 0; |
41c445ff JB |
2604 | } |
2605 | ||
2606 | /** | |
2607 | * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources | |
2608 | * @vsi: ptr to the VSI | |
2609 | * | |
2610 | * If this function returns with an error, then it's possible one or | |
2611 | * more of the rings is populated (while the rest are not). It is the | |
2612 | * callers duty to clean those orphaned rings. | |
2613 | * | |
2614 | * Return 0 on success, negative on failure | |
2615 | **/ | |
2616 | static int i40e_vsi_setup_tx_resources(struct i40e_vsi *vsi) | |
2617 | { | |
2618 | int i, err = 0; | |
2619 | ||
2620 | for (i = 0; i < vsi->num_queue_pairs && !err; i++) | |
9f65e15b | 2621 | err = i40e_setup_tx_descriptors(vsi->tx_rings[i]); |
41c445ff JB |
2622 | |
2623 | return err; | |
2624 | } | |
2625 | ||
2626 | /** | |
2627 | * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues | |
2628 | * @vsi: ptr to the VSI | |
2629 | * | |
2630 | * Free VSI's transmit software resources | |
2631 | **/ | |
2632 | static void i40e_vsi_free_tx_resources(struct i40e_vsi *vsi) | |
2633 | { | |
2634 | int i; | |
2635 | ||
8e9dca53 GR |
2636 | if (!vsi->tx_rings) |
2637 | return; | |
2638 | ||
41c445ff | 2639 | for (i = 0; i < vsi->num_queue_pairs; i++) |
8e9dca53 | 2640 | if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) |
9f65e15b | 2641 | i40e_free_tx_resources(vsi->tx_rings[i]); |
41c445ff JB |
2642 | } |
2643 | ||
2644 | /** | |
2645 | * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources | |
2646 | * @vsi: ptr to the VSI | |
2647 | * | |
2648 | * If this function returns with an error, then it's possible one or | |
2649 | * more of the rings is populated (while the rest are not). It is the | |
2650 | * callers duty to clean those orphaned rings. | |
2651 | * | |
2652 | * Return 0 on success, negative on failure | |
2653 | **/ | |
2654 | static int i40e_vsi_setup_rx_resources(struct i40e_vsi *vsi) | |
2655 | { | |
2656 | int i, err = 0; | |
2657 | ||
2658 | for (i = 0; i < vsi->num_queue_pairs && !err; i++) | |
9f65e15b | 2659 | err = i40e_setup_rx_descriptors(vsi->rx_rings[i]); |
38e00438 VD |
2660 | #ifdef I40E_FCOE |
2661 | i40e_fcoe_setup_ddp_resources(vsi); | |
2662 | #endif | |
41c445ff JB |
2663 | return err; |
2664 | } | |
2665 | ||
2666 | /** | |
2667 | * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues | |
2668 | * @vsi: ptr to the VSI | |
2669 | * | |
2670 | * Free all receive software resources | |
2671 | **/ | |
2672 | static void i40e_vsi_free_rx_resources(struct i40e_vsi *vsi) | |
2673 | { | |
2674 | int i; | |
2675 | ||
8e9dca53 GR |
2676 | if (!vsi->rx_rings) |
2677 | return; | |
2678 | ||
41c445ff | 2679 | for (i = 0; i < vsi->num_queue_pairs; i++) |
8e9dca53 | 2680 | if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc) |
9f65e15b | 2681 | i40e_free_rx_resources(vsi->rx_rings[i]); |
38e00438 VD |
2682 | #ifdef I40E_FCOE |
2683 | i40e_fcoe_free_ddp_resources(vsi); | |
2684 | #endif | |
41c445ff JB |
2685 | } |
2686 | ||
3ffa037d NP |
2687 | /** |
2688 | * i40e_config_xps_tx_ring - Configure XPS for a Tx ring | |
2689 | * @ring: The Tx ring to configure | |
2690 | * | |
2691 | * This enables/disables XPS for a given Tx descriptor ring | |
2692 | * based on the TCs enabled for the VSI that ring belongs to. | |
2693 | **/ | |
2694 | static void i40e_config_xps_tx_ring(struct i40e_ring *ring) | |
2695 | { | |
2696 | struct i40e_vsi *vsi = ring->vsi; | |
2697 | cpumask_var_t mask; | |
2698 | ||
9a660eea JB |
2699 | if (!ring->q_vector || !ring->netdev) |
2700 | return; | |
2701 | ||
2702 | /* Single TC mode enable XPS */ | |
2703 | if (vsi->tc_config.numtc <= 1) { | |
2704 | if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE, &ring->state)) | |
3ffa037d NP |
2705 | netif_set_xps_queue(ring->netdev, |
2706 | &ring->q_vector->affinity_mask, | |
2707 | ring->queue_index); | |
9a660eea JB |
2708 | } else if (alloc_cpumask_var(&mask, GFP_KERNEL)) { |
2709 | /* Disable XPS to allow selection based on TC */ | |
2710 | bitmap_zero(cpumask_bits(mask), nr_cpumask_bits); | |
2711 | netif_set_xps_queue(ring->netdev, mask, ring->queue_index); | |
2712 | free_cpumask_var(mask); | |
3ffa037d NP |
2713 | } |
2714 | } | |
2715 | ||
41c445ff JB |
2716 | /** |
2717 | * i40e_configure_tx_ring - Configure a transmit ring context and rest | |
2718 | * @ring: The Tx ring to configure | |
2719 | * | |
2720 | * Configure the Tx descriptor ring in the HMC context. | |
2721 | **/ | |
2722 | static int i40e_configure_tx_ring(struct i40e_ring *ring) | |
2723 | { | |
2724 | struct i40e_vsi *vsi = ring->vsi; | |
2725 | u16 pf_q = vsi->base_queue + ring->queue_index; | |
2726 | struct i40e_hw *hw = &vsi->back->hw; | |
2727 | struct i40e_hmc_obj_txq tx_ctx; | |
2728 | i40e_status err = 0; | |
2729 | u32 qtx_ctl = 0; | |
2730 | ||
2731 | /* some ATR related tx ring init */ | |
60ea5f83 | 2732 | if (vsi->back->flags & I40E_FLAG_FD_ATR_ENABLED) { |
41c445ff JB |
2733 | ring->atr_sample_rate = vsi->back->atr_sample_rate; |
2734 | ring->atr_count = 0; | |
2735 | } else { | |
2736 | ring->atr_sample_rate = 0; | |
2737 | } | |
2738 | ||
3ffa037d NP |
2739 | /* configure XPS */ |
2740 | i40e_config_xps_tx_ring(ring); | |
41c445ff JB |
2741 | |
2742 | /* clear the context structure first */ | |
2743 | memset(&tx_ctx, 0, sizeof(tx_ctx)); | |
2744 | ||
2745 | tx_ctx.new_context = 1; | |
2746 | tx_ctx.base = (ring->dma / 128); | |
2747 | tx_ctx.qlen = ring->count; | |
60ea5f83 JB |
2748 | tx_ctx.fd_ena = !!(vsi->back->flags & (I40E_FLAG_FD_SB_ENABLED | |
2749 | I40E_FLAG_FD_ATR_ENABLED)); | |
38e00438 VD |
2750 | #ifdef I40E_FCOE |
2751 | tx_ctx.fc_ena = (vsi->type == I40E_VSI_FCOE); | |
2752 | #endif | |
beb0dff1 | 2753 | tx_ctx.timesync_ena = !!(vsi->back->flags & I40E_FLAG_PTP); |
1943d8ba JB |
2754 | /* FDIR VSI tx ring can still use RS bit and writebacks */ |
2755 | if (vsi->type != I40E_VSI_FDIR) | |
2756 | tx_ctx.head_wb_ena = 1; | |
2757 | tx_ctx.head_wb_addr = ring->dma + | |
2758 | (ring->count * sizeof(struct i40e_tx_desc)); | |
41c445ff JB |
2759 | |
2760 | /* As part of VSI creation/update, FW allocates certain | |
2761 | * Tx arbitration queue sets for each TC enabled for | |
2762 | * the VSI. The FW returns the handles to these queue | |
2763 | * sets as part of the response buffer to Add VSI, | |
2764 | * Update VSI, etc. AQ commands. It is expected that | |
2765 | * these queue set handles be associated with the Tx | |
2766 | * queues by the driver as part of the TX queue context | |
2767 | * initialization. This has to be done regardless of | |
2768 | * DCB as by default everything is mapped to TC0. | |
2769 | */ | |
2770 | tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[ring->dcb_tc]); | |
2771 | tx_ctx.rdylist_act = 0; | |
2772 | ||
2773 | /* clear the context in the HMC */ | |
2774 | err = i40e_clear_lan_tx_queue_context(hw, pf_q); | |
2775 | if (err) { | |
2776 | dev_info(&vsi->back->pdev->dev, | |
2777 | "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n", | |
2778 | ring->queue_index, pf_q, err); | |
2779 | return -ENOMEM; | |
2780 | } | |
2781 | ||
2782 | /* set the context in the HMC */ | |
2783 | err = i40e_set_lan_tx_queue_context(hw, pf_q, &tx_ctx); | |
2784 | if (err) { | |
2785 | dev_info(&vsi->back->pdev->dev, | |
2786 | "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n", | |
2787 | ring->queue_index, pf_q, err); | |
2788 | return -ENOMEM; | |
2789 | } | |
2790 | ||
2791 | /* Now associate this queue with this PCI function */ | |
7a28d885 | 2792 | if (vsi->type == I40E_VSI_VMDQ2) { |
9d8bf547 | 2793 | qtx_ctl = I40E_QTX_CTL_VM_QUEUE; |
7a28d885 MW |
2794 | qtx_ctl |= ((vsi->id) << I40E_QTX_CTL_VFVM_INDX_SHIFT) & |
2795 | I40E_QTX_CTL_VFVM_INDX_MASK; | |
2796 | } else { | |
9d8bf547 | 2797 | qtx_ctl = I40E_QTX_CTL_PF_QUEUE; |
7a28d885 MW |
2798 | } |
2799 | ||
13fd9774 SN |
2800 | qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) & |
2801 | I40E_QTX_CTL_PF_INDX_MASK); | |
41c445ff JB |
2802 | wr32(hw, I40E_QTX_CTL(pf_q), qtx_ctl); |
2803 | i40e_flush(hw); | |
2804 | ||
41c445ff JB |
2805 | /* cache tail off for easier writes later */ |
2806 | ring->tail = hw->hw_addr + I40E_QTX_TAIL(pf_q); | |
2807 | ||
2808 | return 0; | |
2809 | } | |
2810 | ||
2811 | /** | |
2812 | * i40e_configure_rx_ring - Configure a receive ring context | |
2813 | * @ring: The Rx ring to configure | |
2814 | * | |
2815 | * Configure the Rx descriptor ring in the HMC context. | |
2816 | **/ | |
2817 | static int i40e_configure_rx_ring(struct i40e_ring *ring) | |
2818 | { | |
2819 | struct i40e_vsi *vsi = ring->vsi; | |
2820 | u32 chain_len = vsi->back->hw.func_caps.rx_buf_chain_len; | |
2821 | u16 pf_q = vsi->base_queue + ring->queue_index; | |
2822 | struct i40e_hw *hw = &vsi->back->hw; | |
2823 | struct i40e_hmc_obj_rxq rx_ctx; | |
2824 | i40e_status err = 0; | |
2825 | ||
2826 | ring->state = 0; | |
2827 | ||
2828 | /* clear the context structure first */ | |
2829 | memset(&rx_ctx, 0, sizeof(rx_ctx)); | |
2830 | ||
2831 | ring->rx_buf_len = vsi->rx_buf_len; | |
2832 | ring->rx_hdr_len = vsi->rx_hdr_len; | |
2833 | ||
2834 | rx_ctx.dbuff = ring->rx_buf_len >> I40E_RXQ_CTX_DBUFF_SHIFT; | |
2835 | rx_ctx.hbuff = ring->rx_hdr_len >> I40E_RXQ_CTX_HBUFF_SHIFT; | |
2836 | ||
2837 | rx_ctx.base = (ring->dma / 128); | |
2838 | rx_ctx.qlen = ring->count; | |
2839 | ||
2840 | if (vsi->back->flags & I40E_FLAG_16BYTE_RX_DESC_ENABLED) { | |
2841 | set_ring_16byte_desc_enabled(ring); | |
2842 | rx_ctx.dsize = 0; | |
2843 | } else { | |
2844 | rx_ctx.dsize = 1; | |
2845 | } | |
2846 | ||
2847 | rx_ctx.dtype = vsi->dtype; | |
2848 | if (vsi->dtype) { | |
2849 | set_ring_ps_enabled(ring); | |
2850 | rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | | |
2851 | I40E_RX_SPLIT_IP | | |
2852 | I40E_RX_SPLIT_TCP_UDP | | |
2853 | I40E_RX_SPLIT_SCTP; | |
2854 | } else { | |
2855 | rx_ctx.hsplit_0 = 0; | |
2856 | } | |
2857 | ||
2858 | rx_ctx.rxmax = min_t(u16, vsi->max_frame, | |
2859 | (chain_len * ring->rx_buf_len)); | |
7134f9ce JB |
2860 | if (hw->revision_id == 0) |
2861 | rx_ctx.lrxqthresh = 0; | |
2862 | else | |
2863 | rx_ctx.lrxqthresh = 2; | |
41c445ff JB |
2864 | rx_ctx.crcstrip = 1; |
2865 | rx_ctx.l2tsel = 1; | |
c4bbac39 JB |
2866 | /* this controls whether VLAN is stripped from inner headers */ |
2867 | rx_ctx.showiv = 0; | |
38e00438 VD |
2868 | #ifdef I40E_FCOE |
2869 | rx_ctx.fc_ena = (vsi->type == I40E_VSI_FCOE); | |
2870 | #endif | |
acb3676b CS |
2871 | /* set the prefena field to 1 because the manual says to */ |
2872 | rx_ctx.prefena = 1; | |
41c445ff JB |
2873 | |
2874 | /* clear the context in the HMC */ | |
2875 | err = i40e_clear_lan_rx_queue_context(hw, pf_q); | |
2876 | if (err) { | |
2877 | dev_info(&vsi->back->pdev->dev, | |
2878 | "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n", | |
2879 | ring->queue_index, pf_q, err); | |
2880 | return -ENOMEM; | |
2881 | } | |
2882 | ||
2883 | /* set the context in the HMC */ | |
2884 | err = i40e_set_lan_rx_queue_context(hw, pf_q, &rx_ctx); | |
2885 | if (err) { | |
2886 | dev_info(&vsi->back->pdev->dev, | |
2887 | "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n", | |
2888 | ring->queue_index, pf_q, err); | |
2889 | return -ENOMEM; | |
2890 | } | |
2891 | ||
2892 | /* cache tail for quicker writes, and clear the reg before use */ | |
2893 | ring->tail = hw->hw_addr + I40E_QRX_TAIL(pf_q); | |
2894 | writel(0, ring->tail); | |
2895 | ||
a132af24 MW |
2896 | if (ring_is_ps_enabled(ring)) { |
2897 | i40e_alloc_rx_headers(ring); | |
2898 | i40e_alloc_rx_buffers_ps(ring, I40E_DESC_UNUSED(ring)); | |
2899 | } else { | |
2900 | i40e_alloc_rx_buffers_1buf(ring, I40E_DESC_UNUSED(ring)); | |
2901 | } | |
41c445ff JB |
2902 | |
2903 | return 0; | |
2904 | } | |
2905 | ||
2906 | /** | |
2907 | * i40e_vsi_configure_tx - Configure the VSI for Tx | |
2908 | * @vsi: VSI structure describing this set of rings and resources | |
2909 | * | |
2910 | * Configure the Tx VSI for operation. | |
2911 | **/ | |
2912 | static int i40e_vsi_configure_tx(struct i40e_vsi *vsi) | |
2913 | { | |
2914 | int err = 0; | |
2915 | u16 i; | |
2916 | ||
9f65e15b AD |
2917 | for (i = 0; (i < vsi->num_queue_pairs) && !err; i++) |
2918 | err = i40e_configure_tx_ring(vsi->tx_rings[i]); | |
41c445ff JB |
2919 | |
2920 | return err; | |
2921 | } | |
2922 | ||
2923 | /** | |
2924 | * i40e_vsi_configure_rx - Configure the VSI for Rx | |
2925 | * @vsi: the VSI being configured | |
2926 | * | |
2927 | * Configure the Rx VSI for operation. | |
2928 | **/ | |
2929 | static int i40e_vsi_configure_rx(struct i40e_vsi *vsi) | |
2930 | { | |
2931 | int err = 0; | |
2932 | u16 i; | |
2933 | ||
2934 | if (vsi->netdev && (vsi->netdev->mtu > ETH_DATA_LEN)) | |
2935 | vsi->max_frame = vsi->netdev->mtu + ETH_HLEN | |
2936 | + ETH_FCS_LEN + VLAN_HLEN; | |
2937 | else | |
2938 | vsi->max_frame = I40E_RXBUFFER_2048; | |
2939 | ||
2940 | /* figure out correct receive buffer length */ | |
2941 | switch (vsi->back->flags & (I40E_FLAG_RX_1BUF_ENABLED | | |
2942 | I40E_FLAG_RX_PS_ENABLED)) { | |
2943 | case I40E_FLAG_RX_1BUF_ENABLED: | |
2944 | vsi->rx_hdr_len = 0; | |
2945 | vsi->rx_buf_len = vsi->max_frame; | |
2946 | vsi->dtype = I40E_RX_DTYPE_NO_SPLIT; | |
2947 | break; | |
2948 | case I40E_FLAG_RX_PS_ENABLED: | |
2949 | vsi->rx_hdr_len = I40E_RX_HDR_SIZE; | |
2950 | vsi->rx_buf_len = I40E_RXBUFFER_2048; | |
2951 | vsi->dtype = I40E_RX_DTYPE_HEADER_SPLIT; | |
2952 | break; | |
2953 | default: | |
2954 | vsi->rx_hdr_len = I40E_RX_HDR_SIZE; | |
2955 | vsi->rx_buf_len = I40E_RXBUFFER_2048; | |
2956 | vsi->dtype = I40E_RX_DTYPE_SPLIT_ALWAYS; | |
2957 | break; | |
2958 | } | |
2959 | ||
38e00438 VD |
2960 | #ifdef I40E_FCOE |
2961 | /* setup rx buffer for FCoE */ | |
2962 | if ((vsi->type == I40E_VSI_FCOE) && | |
2963 | (vsi->back->flags & I40E_FLAG_FCOE_ENABLED)) { | |
2964 | vsi->rx_hdr_len = 0; | |
2965 | vsi->rx_buf_len = I40E_RXBUFFER_3072; | |
2966 | vsi->max_frame = I40E_RXBUFFER_3072; | |
2967 | vsi->dtype = I40E_RX_DTYPE_NO_SPLIT; | |
2968 | } | |
2969 | ||
2970 | #endif /* I40E_FCOE */ | |
41c445ff JB |
2971 | /* round up for the chip's needs */ |
2972 | vsi->rx_hdr_len = ALIGN(vsi->rx_hdr_len, | |
41a1d04b | 2973 | BIT_ULL(I40E_RXQ_CTX_HBUFF_SHIFT)); |
41c445ff | 2974 | vsi->rx_buf_len = ALIGN(vsi->rx_buf_len, |
41a1d04b | 2975 | BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT)); |
41c445ff JB |
2976 | |
2977 | /* set up individual rings */ | |
2978 | for (i = 0; i < vsi->num_queue_pairs && !err; i++) | |
9f65e15b | 2979 | err = i40e_configure_rx_ring(vsi->rx_rings[i]); |
41c445ff JB |
2980 | |
2981 | return err; | |
2982 | } | |
2983 | ||
2984 | /** | |
2985 | * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC | |
2986 | * @vsi: ptr to the VSI | |
2987 | **/ | |
2988 | static void i40e_vsi_config_dcb_rings(struct i40e_vsi *vsi) | |
2989 | { | |
e7046ee1 | 2990 | struct i40e_ring *tx_ring, *rx_ring; |
41c445ff JB |
2991 | u16 qoffset, qcount; |
2992 | int i, n; | |
2993 | ||
cd238a3e PN |
2994 | if (!(vsi->back->flags & I40E_FLAG_DCB_ENABLED)) { |
2995 | /* Reset the TC information */ | |
2996 | for (i = 0; i < vsi->num_queue_pairs; i++) { | |
2997 | rx_ring = vsi->rx_rings[i]; | |
2998 | tx_ring = vsi->tx_rings[i]; | |
2999 | rx_ring->dcb_tc = 0; | |
3000 | tx_ring->dcb_tc = 0; | |
3001 | } | |
3002 | } | |
41c445ff JB |
3003 | |
3004 | for (n = 0; n < I40E_MAX_TRAFFIC_CLASS; n++) { | |
41a1d04b | 3005 | if (!(vsi->tc_config.enabled_tc & BIT_ULL(n))) |
41c445ff JB |
3006 | continue; |
3007 | ||
3008 | qoffset = vsi->tc_config.tc_info[n].qoffset; | |
3009 | qcount = vsi->tc_config.tc_info[n].qcount; | |
3010 | for (i = qoffset; i < (qoffset + qcount); i++) { | |
e7046ee1 AA |
3011 | rx_ring = vsi->rx_rings[i]; |
3012 | tx_ring = vsi->tx_rings[i]; | |
41c445ff JB |
3013 | rx_ring->dcb_tc = n; |
3014 | tx_ring->dcb_tc = n; | |
3015 | } | |
3016 | } | |
3017 | } | |
3018 | ||
3019 | /** | |
3020 | * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI | |
3021 | * @vsi: ptr to the VSI | |
3022 | **/ | |
3023 | static void i40e_set_vsi_rx_mode(struct i40e_vsi *vsi) | |
3024 | { | |
3025 | if (vsi->netdev) | |
3026 | i40e_set_rx_mode(vsi->netdev); | |
3027 | } | |
3028 | ||
17a73f6b JG |
3029 | /** |
3030 | * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters | |
3031 | * @vsi: Pointer to the targeted VSI | |
3032 | * | |
3033 | * This function replays the hlist on the hw where all the SB Flow Director | |
3034 | * filters were saved. | |
3035 | **/ | |
3036 | static void i40e_fdir_filter_restore(struct i40e_vsi *vsi) | |
3037 | { | |
3038 | struct i40e_fdir_filter *filter; | |
3039 | struct i40e_pf *pf = vsi->back; | |
3040 | struct hlist_node *node; | |
3041 | ||
55a5e60b ASJ |
3042 | if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) |
3043 | return; | |
3044 | ||
17a73f6b JG |
3045 | hlist_for_each_entry_safe(filter, node, |
3046 | &pf->fdir_filter_list, fdir_node) { | |
3047 | i40e_add_del_fdir(vsi, filter, true); | |
3048 | } | |
3049 | } | |
3050 | ||
41c445ff JB |
3051 | /** |
3052 | * i40e_vsi_configure - Set up the VSI for action | |
3053 | * @vsi: the VSI being configured | |
3054 | **/ | |
3055 | static int i40e_vsi_configure(struct i40e_vsi *vsi) | |
3056 | { | |
3057 | int err; | |
3058 | ||
3059 | i40e_set_vsi_rx_mode(vsi); | |
3060 | i40e_restore_vlan(vsi); | |
3061 | i40e_vsi_config_dcb_rings(vsi); | |
3062 | err = i40e_vsi_configure_tx(vsi); | |
3063 | if (!err) | |
3064 | err = i40e_vsi_configure_rx(vsi); | |
3065 | ||
3066 | return err; | |
3067 | } | |
3068 | ||
3069 | /** | |
3070 | * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW | |
3071 | * @vsi: the VSI being configured | |
3072 | **/ | |
3073 | static void i40e_vsi_configure_msix(struct i40e_vsi *vsi) | |
3074 | { | |
3075 | struct i40e_pf *pf = vsi->back; | |
41c445ff JB |
3076 | struct i40e_hw *hw = &pf->hw; |
3077 | u16 vector; | |
3078 | int i, q; | |
41c445ff JB |
3079 | u32 qp; |
3080 | ||
3081 | /* The interrupt indexing is offset by 1 in the PFINT_ITRn | |
3082 | * and PFINT_LNKLSTn registers, e.g.: | |
3083 | * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts) | |
3084 | */ | |
3085 | qp = vsi->base_queue; | |
3086 | vector = vsi->base_vector; | |
493fb300 | 3087 | for (i = 0; i < vsi->num_q_vectors; i++, vector++) { |
ac26fc13 JB |
3088 | struct i40e_q_vector *q_vector = vsi->q_vectors[i]; |
3089 | ||
ee2319cf | 3090 | q_vector->itr_countdown = ITR_COUNTDOWN_START; |
41c445ff JB |
3091 | q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting); |
3092 | q_vector->rx.latency_range = I40E_LOW_LATENCY; | |
3093 | wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), | |
3094 | q_vector->rx.itr); | |
3095 | q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting); | |
3096 | q_vector->tx.latency_range = I40E_LOW_LATENCY; | |
3097 | wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), | |
3098 | q_vector->tx.itr); | |
ac26fc13 JB |
3099 | wr32(hw, I40E_PFINT_RATEN(vector - 1), |
3100 | INTRL_USEC_TO_REG(vsi->int_rate_limit)); | |
41c445ff JB |
3101 | |
3102 | /* Linked list for the queuepairs assigned to this vector */ | |
3103 | wr32(hw, I40E_PFINT_LNKLSTN(vector - 1), qp); | |
3104 | for (q = 0; q < q_vector->num_ringpairs; q++) { | |
ac26fc13 JB |
3105 | u32 val; |
3106 | ||
41c445ff JB |
3107 | val = I40E_QINT_RQCTL_CAUSE_ENA_MASK | |
3108 | (I40E_RX_ITR << I40E_QINT_RQCTL_ITR_INDX_SHIFT) | | |
3109 | (vector << I40E_QINT_RQCTL_MSIX_INDX_SHIFT) | | |
3110 | (qp << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT)| | |
3111 | (I40E_QUEUE_TYPE_TX | |
3112 | << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT); | |
3113 | ||
3114 | wr32(hw, I40E_QINT_RQCTL(qp), val); | |
3115 | ||
3116 | val = I40E_QINT_TQCTL_CAUSE_ENA_MASK | | |
3117 | (I40E_TX_ITR << I40E_QINT_TQCTL_ITR_INDX_SHIFT) | | |
3118 | (vector << I40E_QINT_TQCTL_MSIX_INDX_SHIFT) | | |
3119 | ((qp+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT)| | |
3120 | (I40E_QUEUE_TYPE_RX | |
3121 | << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT); | |
3122 | ||
3123 | /* Terminate the linked list */ | |
3124 | if (q == (q_vector->num_ringpairs - 1)) | |
3125 | val |= (I40E_QUEUE_END_OF_LIST | |
3126 | << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT); | |
3127 | ||
3128 | wr32(hw, I40E_QINT_TQCTL(qp), val); | |
3129 | qp++; | |
3130 | } | |
3131 | } | |
3132 | ||
3133 | i40e_flush(hw); | |
3134 | } | |
3135 | ||
3136 | /** | |
3137 | * i40e_enable_misc_int_causes - enable the non-queue interrupts | |
3138 | * @hw: ptr to the hardware info | |
3139 | **/ | |
ab437b5a | 3140 | static void i40e_enable_misc_int_causes(struct i40e_pf *pf) |
41c445ff | 3141 | { |
ab437b5a | 3142 | struct i40e_hw *hw = &pf->hw; |
41c445ff JB |
3143 | u32 val; |
3144 | ||
3145 | /* clear things first */ | |
3146 | wr32(hw, I40E_PFINT_ICR0_ENA, 0); /* disable all */ | |
3147 | rd32(hw, I40E_PFINT_ICR0); /* read to clear */ | |
3148 | ||
3149 | val = I40E_PFINT_ICR0_ENA_ECC_ERR_MASK | | |
3150 | I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK | | |
3151 | I40E_PFINT_ICR0_ENA_GRST_MASK | | |
3152 | I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK | | |
3153 | I40E_PFINT_ICR0_ENA_GPIO_MASK | | |
41c445ff JB |
3154 | I40E_PFINT_ICR0_ENA_HMC_ERR_MASK | |
3155 | I40E_PFINT_ICR0_ENA_VFLR_MASK | | |
3156 | I40E_PFINT_ICR0_ENA_ADMINQ_MASK; | |
3157 | ||
0d8e1439 ASJ |
3158 | if (pf->flags & I40E_FLAG_IWARP_ENABLED) |
3159 | val |= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK; | |
3160 | ||
ab437b5a JK |
3161 | if (pf->flags & I40E_FLAG_PTP) |
3162 | val |= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK; | |
3163 | ||
41c445ff JB |
3164 | wr32(hw, I40E_PFINT_ICR0_ENA, val); |
3165 | ||
3166 | /* SW_ITR_IDX = 0, but don't change INTENA */ | |
84ed40e7 ASJ |
3167 | wr32(hw, I40E_PFINT_DYN_CTL0, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK | |
3168 | I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK); | |
41c445ff JB |
3169 | |
3170 | /* OTHER_ITR_IDX = 0 */ | |
3171 | wr32(hw, I40E_PFINT_STAT_CTL0, 0); | |
3172 | } | |
3173 | ||
3174 | /** | |
3175 | * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW | |
3176 | * @vsi: the VSI being configured | |
3177 | **/ | |
3178 | static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi) | |
3179 | { | |
493fb300 | 3180 | struct i40e_q_vector *q_vector = vsi->q_vectors[0]; |
41c445ff JB |
3181 | struct i40e_pf *pf = vsi->back; |
3182 | struct i40e_hw *hw = &pf->hw; | |
3183 | u32 val; | |
3184 | ||
3185 | /* set the ITR configuration */ | |
ee2319cf | 3186 | q_vector->itr_countdown = ITR_COUNTDOWN_START; |
41c445ff JB |
3187 | q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting); |
3188 | q_vector->rx.latency_range = I40E_LOW_LATENCY; | |
3189 | wr32(hw, I40E_PFINT_ITR0(I40E_RX_ITR), q_vector->rx.itr); | |
3190 | q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting); | |
3191 | q_vector->tx.latency_range = I40E_LOW_LATENCY; | |
3192 | wr32(hw, I40E_PFINT_ITR0(I40E_TX_ITR), q_vector->tx.itr); | |
3193 | ||
ab437b5a | 3194 | i40e_enable_misc_int_causes(pf); |
41c445ff JB |
3195 | |
3196 | /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */ | |
3197 | wr32(hw, I40E_PFINT_LNKLST0, 0); | |
3198 | ||
f29eaa3d | 3199 | /* Associate the queue pair to the vector and enable the queue int */ |
41c445ff JB |
3200 | val = I40E_QINT_RQCTL_CAUSE_ENA_MASK | |
3201 | (I40E_RX_ITR << I40E_QINT_RQCTL_ITR_INDX_SHIFT) | | |
3202 | (I40E_QUEUE_TYPE_TX << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT); | |
3203 | ||
3204 | wr32(hw, I40E_QINT_RQCTL(0), val); | |
3205 | ||
3206 | val = I40E_QINT_TQCTL_CAUSE_ENA_MASK | | |
3207 | (I40E_TX_ITR << I40E_QINT_TQCTL_ITR_INDX_SHIFT) | | |
3208 | (I40E_QUEUE_END_OF_LIST << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT); | |
3209 | ||
3210 | wr32(hw, I40E_QINT_TQCTL(0), val); | |
3211 | i40e_flush(hw); | |
3212 | } | |
3213 | ||
2ef28cfb MW |
3214 | /** |
3215 | * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0 | |
3216 | * @pf: board private structure | |
3217 | **/ | |
3218 | void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf) | |
3219 | { | |
3220 | struct i40e_hw *hw = &pf->hw; | |
3221 | ||
3222 | wr32(hw, I40E_PFINT_DYN_CTL0, | |
3223 | I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT); | |
3224 | i40e_flush(hw); | |
3225 | } | |
3226 | ||
41c445ff JB |
3227 | /** |
3228 | * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0 | |
3229 | * @pf: board private structure | |
3230 | **/ | |
116a57d4 | 3231 | void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf) |
41c445ff JB |
3232 | { |
3233 | struct i40e_hw *hw = &pf->hw; | |
3234 | u32 val; | |
3235 | ||
3236 | val = I40E_PFINT_DYN_CTL0_INTENA_MASK | | |
3237 | I40E_PFINT_DYN_CTL0_CLEARPBA_MASK | | |
3238 | (I40E_ITR_NONE << I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT); | |
3239 | ||
3240 | wr32(hw, I40E_PFINT_DYN_CTL0, val); | |
3241 | i40e_flush(hw); | |
3242 | } | |
3243 | ||
5c2cebda CW |
3244 | /** |
3245 | * i40e_irq_dynamic_disable - Disable default interrupt generation settings | |
3246 | * @vsi: pointer to a vsi | |
03147773 | 3247 | * @vector: disable a particular Hw Interrupt vector |
5c2cebda CW |
3248 | **/ |
3249 | void i40e_irq_dynamic_disable(struct i40e_vsi *vsi, int vector) | |
3250 | { | |
3251 | struct i40e_pf *pf = vsi->back; | |
3252 | struct i40e_hw *hw = &pf->hw; | |
3253 | u32 val; | |
3254 | ||
3255 | val = I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT; | |
3256 | wr32(hw, I40E_PFINT_DYN_CTLN(vector - 1), val); | |
3257 | i40e_flush(hw); | |
3258 | } | |
3259 | ||
41c445ff JB |
3260 | /** |
3261 | * i40e_msix_clean_rings - MSIX mode Interrupt Handler | |
3262 | * @irq: interrupt number | |
3263 | * @data: pointer to a q_vector | |
3264 | **/ | |
3265 | static irqreturn_t i40e_msix_clean_rings(int irq, void *data) | |
3266 | { | |
3267 | struct i40e_q_vector *q_vector = data; | |
3268 | ||
cd0b6fa6 | 3269 | if (!q_vector->tx.ring && !q_vector->rx.ring) |
41c445ff JB |
3270 | return IRQ_HANDLED; |
3271 | ||
5d3465a1 | 3272 | napi_schedule_irqoff(&q_vector->napi); |
41c445ff JB |
3273 | |
3274 | return IRQ_HANDLED; | |
3275 | } | |
3276 | ||
41c445ff JB |
3277 | /** |
3278 | * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts | |
3279 | * @vsi: the VSI being configured | |
3280 | * @basename: name for the vector | |
3281 | * | |
3282 | * Allocates MSI-X vectors and requests interrupts from the kernel. | |
3283 | **/ | |
3284 | static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename) | |
3285 | { | |
3286 | int q_vectors = vsi->num_q_vectors; | |
3287 | struct i40e_pf *pf = vsi->back; | |
3288 | int base = vsi->base_vector; | |
3289 | int rx_int_idx = 0; | |
3290 | int tx_int_idx = 0; | |
3291 | int vector, err; | |
3292 | ||
3293 | for (vector = 0; vector < q_vectors; vector++) { | |
493fb300 | 3294 | struct i40e_q_vector *q_vector = vsi->q_vectors[vector]; |
41c445ff | 3295 | |
cd0b6fa6 | 3296 | if (q_vector->tx.ring && q_vector->rx.ring) { |
41c445ff JB |
3297 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
3298 | "%s-%s-%d", basename, "TxRx", rx_int_idx++); | |
3299 | tx_int_idx++; | |
cd0b6fa6 | 3300 | } else if (q_vector->rx.ring) { |
41c445ff JB |
3301 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
3302 | "%s-%s-%d", basename, "rx", rx_int_idx++); | |
cd0b6fa6 | 3303 | } else if (q_vector->tx.ring) { |
41c445ff JB |
3304 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
3305 | "%s-%s-%d", basename, "tx", tx_int_idx++); | |
3306 | } else { | |
3307 | /* skip this unused q_vector */ | |
3308 | continue; | |
3309 | } | |
3310 | err = request_irq(pf->msix_entries[base + vector].vector, | |
3311 | vsi->irq_handler, | |
3312 | 0, | |
3313 | q_vector->name, | |
3314 | q_vector); | |
3315 | if (err) { | |
3316 | dev_info(&pf->pdev->dev, | |
fb43201f | 3317 | "MSIX request_irq failed, error: %d\n", err); |
41c445ff JB |
3318 | goto free_queue_irqs; |
3319 | } | |
3320 | /* assign the mask for this irq */ | |
3321 | irq_set_affinity_hint(pf->msix_entries[base + vector].vector, | |
3322 | &q_vector->affinity_mask); | |
3323 | } | |
3324 | ||
63741846 | 3325 | vsi->irqs_ready = true; |
41c445ff JB |
3326 | return 0; |
3327 | ||
3328 | free_queue_irqs: | |
3329 | while (vector) { | |
3330 | vector--; | |
3331 | irq_set_affinity_hint(pf->msix_entries[base + vector].vector, | |
3332 | NULL); | |
3333 | free_irq(pf->msix_entries[base + vector].vector, | |
3334 | &(vsi->q_vectors[vector])); | |
3335 | } | |
3336 | return err; | |
3337 | } | |
3338 | ||
3339 | /** | |
3340 | * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI | |
3341 | * @vsi: the VSI being un-configured | |
3342 | **/ | |
3343 | static void i40e_vsi_disable_irq(struct i40e_vsi *vsi) | |
3344 | { | |
3345 | struct i40e_pf *pf = vsi->back; | |
3346 | struct i40e_hw *hw = &pf->hw; | |
3347 | int base = vsi->base_vector; | |
3348 | int i; | |
3349 | ||
3350 | for (i = 0; i < vsi->num_queue_pairs; i++) { | |
9f65e15b AD |
3351 | wr32(hw, I40E_QINT_TQCTL(vsi->tx_rings[i]->reg_idx), 0); |
3352 | wr32(hw, I40E_QINT_RQCTL(vsi->rx_rings[i]->reg_idx), 0); | |
41c445ff JB |
3353 | } |
3354 | ||
3355 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { | |
3356 | for (i = vsi->base_vector; | |
3357 | i < (vsi->num_q_vectors + vsi->base_vector); i++) | |
3358 | wr32(hw, I40E_PFINT_DYN_CTLN(i - 1), 0); | |
3359 | ||
3360 | i40e_flush(hw); | |
3361 | for (i = 0; i < vsi->num_q_vectors; i++) | |
3362 | synchronize_irq(pf->msix_entries[i + base].vector); | |
3363 | } else { | |
3364 | /* Legacy and MSI mode - this stops all interrupt handling */ | |
3365 | wr32(hw, I40E_PFINT_ICR0_ENA, 0); | |
3366 | wr32(hw, I40E_PFINT_DYN_CTL0, 0); | |
3367 | i40e_flush(hw); | |
3368 | synchronize_irq(pf->pdev->irq); | |
3369 | } | |
3370 | } | |
3371 | ||
3372 | /** | |
3373 | * i40e_vsi_enable_irq - Enable IRQ for the given VSI | |
3374 | * @vsi: the VSI being configured | |
3375 | **/ | |
3376 | static int i40e_vsi_enable_irq(struct i40e_vsi *vsi) | |
3377 | { | |
3378 | struct i40e_pf *pf = vsi->back; | |
3379 | int i; | |
3380 | ||
3381 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { | |
7845548d | 3382 | for (i = 0; i < vsi->num_q_vectors; i++) |
41c445ff JB |
3383 | i40e_irq_dynamic_enable(vsi, i); |
3384 | } else { | |
3385 | i40e_irq_dynamic_enable_icr0(pf); | |
3386 | } | |
3387 | ||
1022cb6c | 3388 | i40e_flush(&pf->hw); |
41c445ff JB |
3389 | return 0; |
3390 | } | |
3391 | ||
3392 | /** | |
3393 | * i40e_stop_misc_vector - Stop the vector that handles non-queue events | |
3394 | * @pf: board private structure | |
3395 | **/ | |
3396 | static void i40e_stop_misc_vector(struct i40e_pf *pf) | |
3397 | { | |
3398 | /* Disable ICR 0 */ | |
3399 | wr32(&pf->hw, I40E_PFINT_ICR0_ENA, 0); | |
3400 | i40e_flush(&pf->hw); | |
3401 | } | |
3402 | ||
3403 | /** | |
3404 | * i40e_intr - MSI/Legacy and non-queue interrupt handler | |
3405 | * @irq: interrupt number | |
3406 | * @data: pointer to a q_vector | |
3407 | * | |
3408 | * This is the handler used for all MSI/Legacy interrupts, and deals | |
3409 | * with both queue and non-queue interrupts. This is also used in | |
3410 | * MSIX mode to handle the non-queue interrupts. | |
3411 | **/ | |
3412 | static irqreturn_t i40e_intr(int irq, void *data) | |
3413 | { | |
3414 | struct i40e_pf *pf = (struct i40e_pf *)data; | |
3415 | struct i40e_hw *hw = &pf->hw; | |
5e823066 | 3416 | irqreturn_t ret = IRQ_NONE; |
41c445ff JB |
3417 | u32 icr0, icr0_remaining; |
3418 | u32 val, ena_mask; | |
3419 | ||
3420 | icr0 = rd32(hw, I40E_PFINT_ICR0); | |
5e823066 | 3421 | ena_mask = rd32(hw, I40E_PFINT_ICR0_ENA); |
41c445ff | 3422 | |
116a57d4 SN |
3423 | /* if sharing a legacy IRQ, we might get called w/o an intr pending */ |
3424 | if ((icr0 & I40E_PFINT_ICR0_INTEVENT_MASK) == 0) | |
5e823066 | 3425 | goto enable_intr; |
41c445ff | 3426 | |
cd92e72f SN |
3427 | /* if interrupt but no bits showing, must be SWINT */ |
3428 | if (((icr0 & ~I40E_PFINT_ICR0_INTEVENT_MASK) == 0) || | |
3429 | (icr0 & I40E_PFINT_ICR0_SWINT_MASK)) | |
3430 | pf->sw_int_count++; | |
3431 | ||
0d8e1439 ASJ |
3432 | if ((pf->flags & I40E_FLAG_IWARP_ENABLED) && |
3433 | (ena_mask & I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK)) { | |
3434 | ena_mask &= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK; | |
3435 | icr0 &= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK; | |
3436 | dev_info(&pf->pdev->dev, "cleared PE_CRITERR\n"); | |
3437 | } | |
3438 | ||
41c445ff JB |
3439 | /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */ |
3440 | if (icr0 & I40E_PFINT_ICR0_QUEUE_0_MASK) { | |
5d3465a1 AD |
3441 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
3442 | struct i40e_q_vector *q_vector = vsi->q_vectors[0]; | |
41c445ff JB |
3443 | |
3444 | /* temporarily disable queue cause for NAPI processing */ | |
3445 | u32 qval = rd32(hw, I40E_QINT_RQCTL(0)); | |
6995b36c | 3446 | |
41c445ff JB |
3447 | qval &= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK; |
3448 | wr32(hw, I40E_QINT_RQCTL(0), qval); | |
3449 | ||
3450 | qval = rd32(hw, I40E_QINT_TQCTL(0)); | |
3451 | qval &= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK; | |
3452 | wr32(hw, I40E_QINT_TQCTL(0), qval); | |
41c445ff JB |
3453 | |
3454 | if (!test_bit(__I40E_DOWN, &pf->state)) | |
5d3465a1 | 3455 | napi_schedule_irqoff(&q_vector->napi); |
41c445ff JB |
3456 | } |
3457 | ||
3458 | if (icr0 & I40E_PFINT_ICR0_ADMINQ_MASK) { | |
3459 | ena_mask &= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK; | |
3460 | set_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state); | |
3461 | } | |
3462 | ||
3463 | if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK) { | |
3464 | ena_mask &= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK; | |
3465 | set_bit(__I40E_MDD_EVENT_PENDING, &pf->state); | |
3466 | } | |
3467 | ||
3468 | if (icr0 & I40E_PFINT_ICR0_VFLR_MASK) { | |
3469 | ena_mask &= ~I40E_PFINT_ICR0_ENA_VFLR_MASK; | |
3470 | set_bit(__I40E_VFLR_EVENT_PENDING, &pf->state); | |
3471 | } | |
3472 | ||
3473 | if (icr0 & I40E_PFINT_ICR0_GRST_MASK) { | |
3474 | if (!test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state)) | |
3475 | set_bit(__I40E_RESET_INTR_RECEIVED, &pf->state); | |
3476 | ena_mask &= ~I40E_PFINT_ICR0_ENA_GRST_MASK; | |
3477 | val = rd32(hw, I40E_GLGEN_RSTAT); | |
3478 | val = (val & I40E_GLGEN_RSTAT_RESET_TYPE_MASK) | |
3479 | >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT; | |
4eb3f768 | 3480 | if (val == I40E_RESET_CORER) { |
41c445ff | 3481 | pf->corer_count++; |
4eb3f768 | 3482 | } else if (val == I40E_RESET_GLOBR) { |
41c445ff | 3483 | pf->globr_count++; |
4eb3f768 | 3484 | } else if (val == I40E_RESET_EMPR) { |
41c445ff | 3485 | pf->empr_count++; |
9df42d1a | 3486 | set_bit(__I40E_EMP_RESET_INTR_RECEIVED, &pf->state); |
4eb3f768 | 3487 | } |
41c445ff JB |
3488 | } |
3489 | ||
9c010ee0 ASJ |
3490 | if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK) { |
3491 | icr0 &= ~I40E_PFINT_ICR0_HMC_ERR_MASK; | |
3492 | dev_info(&pf->pdev->dev, "HMC error interrupt\n"); | |
25fc0e65 ASJ |
3493 | dev_info(&pf->pdev->dev, "HMC error info 0x%x, HMC error data 0x%x\n", |
3494 | rd32(hw, I40E_PFHMC_ERRORINFO), | |
3495 | rd32(hw, I40E_PFHMC_ERRORDATA)); | |
9c010ee0 ASJ |
3496 | } |
3497 | ||
beb0dff1 JK |
3498 | if (icr0 & I40E_PFINT_ICR0_TIMESYNC_MASK) { |
3499 | u32 prttsyn_stat = rd32(hw, I40E_PRTTSYN_STAT_0); | |
3500 | ||
3501 | if (prttsyn_stat & I40E_PRTTSYN_STAT_0_TXTIME_MASK) { | |
cafa1fca | 3502 | icr0 &= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK; |
beb0dff1 | 3503 | i40e_ptp_tx_hwtstamp(pf); |
beb0dff1 | 3504 | } |
beb0dff1 JK |
3505 | } |
3506 | ||
41c445ff JB |
3507 | /* If a critical error is pending we have no choice but to reset the |
3508 | * device. | |
3509 | * Report and mask out any remaining unexpected interrupts. | |
3510 | */ | |
3511 | icr0_remaining = icr0 & ena_mask; | |
3512 | if (icr0_remaining) { | |
3513 | dev_info(&pf->pdev->dev, "unhandled interrupt icr0=0x%08x\n", | |
3514 | icr0_remaining); | |
9c010ee0 | 3515 | if ((icr0_remaining & I40E_PFINT_ICR0_PE_CRITERR_MASK) || |
41c445ff | 3516 | (icr0_remaining & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK) || |
c0c28975 | 3517 | (icr0_remaining & I40E_PFINT_ICR0_ECC_ERR_MASK)) { |
9c010ee0 ASJ |
3518 | dev_info(&pf->pdev->dev, "device will be reset\n"); |
3519 | set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); | |
3520 | i40e_service_event_schedule(pf); | |
41c445ff JB |
3521 | } |
3522 | ena_mask &= ~icr0_remaining; | |
3523 | } | |
5e823066 | 3524 | ret = IRQ_HANDLED; |
41c445ff | 3525 | |
5e823066 | 3526 | enable_intr: |
41c445ff JB |
3527 | /* re-enable interrupt causes */ |
3528 | wr32(hw, I40E_PFINT_ICR0_ENA, ena_mask); | |
41c445ff JB |
3529 | if (!test_bit(__I40E_DOWN, &pf->state)) { |
3530 | i40e_service_event_schedule(pf); | |
3531 | i40e_irq_dynamic_enable_icr0(pf); | |
3532 | } | |
3533 | ||
5e823066 | 3534 | return ret; |
41c445ff JB |
3535 | } |
3536 | ||
cbf61325 ASJ |
3537 | /** |
3538 | * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes | |
3539 | * @tx_ring: tx ring to clean | |
3540 | * @budget: how many cleans we're allowed | |
3541 | * | |
3542 | * Returns true if there's any budget left (e.g. the clean is finished) | |
3543 | **/ | |
3544 | static bool i40e_clean_fdir_tx_irq(struct i40e_ring *tx_ring, int budget) | |
3545 | { | |
3546 | struct i40e_vsi *vsi = tx_ring->vsi; | |
3547 | u16 i = tx_ring->next_to_clean; | |
3548 | struct i40e_tx_buffer *tx_buf; | |
3549 | struct i40e_tx_desc *tx_desc; | |
3550 | ||
3551 | tx_buf = &tx_ring->tx_bi[i]; | |
3552 | tx_desc = I40E_TX_DESC(tx_ring, i); | |
3553 | i -= tx_ring->count; | |
3554 | ||
3555 | do { | |
3556 | struct i40e_tx_desc *eop_desc = tx_buf->next_to_watch; | |
3557 | ||
3558 | /* if next_to_watch is not set then there is no work pending */ | |
3559 | if (!eop_desc) | |
3560 | break; | |
3561 | ||
3562 | /* prevent any other reads prior to eop_desc */ | |
3563 | read_barrier_depends(); | |
3564 | ||
3565 | /* if the descriptor isn't done, no work yet to do */ | |
3566 | if (!(eop_desc->cmd_type_offset_bsz & | |
3567 | cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE))) | |
3568 | break; | |
3569 | ||
3570 | /* clear next_to_watch to prevent false hangs */ | |
3571 | tx_buf->next_to_watch = NULL; | |
3572 | ||
49d7d933 ASJ |
3573 | tx_desc->buffer_addr = 0; |
3574 | tx_desc->cmd_type_offset_bsz = 0; | |
3575 | /* move past filter desc */ | |
3576 | tx_buf++; | |
3577 | tx_desc++; | |
3578 | i++; | |
3579 | if (unlikely(!i)) { | |
3580 | i -= tx_ring->count; | |
3581 | tx_buf = tx_ring->tx_bi; | |
3582 | tx_desc = I40E_TX_DESC(tx_ring, 0); | |
3583 | } | |
cbf61325 ASJ |
3584 | /* unmap skb header data */ |
3585 | dma_unmap_single(tx_ring->dev, | |
3586 | dma_unmap_addr(tx_buf, dma), | |
3587 | dma_unmap_len(tx_buf, len), | |
3588 | DMA_TO_DEVICE); | |
49d7d933 ASJ |
3589 | if (tx_buf->tx_flags & I40E_TX_FLAGS_FD_SB) |
3590 | kfree(tx_buf->raw_buf); | |
cbf61325 | 3591 | |
49d7d933 ASJ |
3592 | tx_buf->raw_buf = NULL; |
3593 | tx_buf->tx_flags = 0; | |
3594 | tx_buf->next_to_watch = NULL; | |
cbf61325 | 3595 | dma_unmap_len_set(tx_buf, len, 0); |
49d7d933 ASJ |
3596 | tx_desc->buffer_addr = 0; |
3597 | tx_desc->cmd_type_offset_bsz = 0; | |
cbf61325 | 3598 | |
49d7d933 | 3599 | /* move us past the eop_desc for start of next FD desc */ |
cbf61325 ASJ |
3600 | tx_buf++; |
3601 | tx_desc++; | |
3602 | i++; | |
3603 | if (unlikely(!i)) { | |
3604 | i -= tx_ring->count; | |
3605 | tx_buf = tx_ring->tx_bi; | |
3606 | tx_desc = I40E_TX_DESC(tx_ring, 0); | |
3607 | } | |
3608 | ||
3609 | /* update budget accounting */ | |
3610 | budget--; | |
3611 | } while (likely(budget)); | |
3612 | ||
3613 | i += tx_ring->count; | |
3614 | tx_ring->next_to_clean = i; | |
3615 | ||
6995b36c | 3616 | if (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) |
7845548d | 3617 | i40e_irq_dynamic_enable(vsi, tx_ring->q_vector->v_idx); |
6995b36c | 3618 | |
cbf61325 ASJ |
3619 | return budget > 0; |
3620 | } | |
3621 | ||
3622 | /** | |
3623 | * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring | |
3624 | * @irq: interrupt number | |
3625 | * @data: pointer to a q_vector | |
3626 | **/ | |
3627 | static irqreturn_t i40e_fdir_clean_ring(int irq, void *data) | |
3628 | { | |
3629 | struct i40e_q_vector *q_vector = data; | |
3630 | struct i40e_vsi *vsi; | |
3631 | ||
3632 | if (!q_vector->tx.ring) | |
3633 | return IRQ_HANDLED; | |
3634 | ||
3635 | vsi = q_vector->tx.ring->vsi; | |
3636 | i40e_clean_fdir_tx_irq(q_vector->tx.ring, vsi->work_limit); | |
3637 | ||
3638 | return IRQ_HANDLED; | |
3639 | } | |
3640 | ||
41c445ff | 3641 | /** |
cd0b6fa6 | 3642 | * i40e_map_vector_to_qp - Assigns the queue pair to the vector |
41c445ff JB |
3643 | * @vsi: the VSI being configured |
3644 | * @v_idx: vector index | |
cd0b6fa6 | 3645 | * @qp_idx: queue pair index |
41c445ff | 3646 | **/ |
26cdc443 | 3647 | static void i40e_map_vector_to_qp(struct i40e_vsi *vsi, int v_idx, int qp_idx) |
41c445ff | 3648 | { |
493fb300 | 3649 | struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx]; |
9f65e15b AD |
3650 | struct i40e_ring *tx_ring = vsi->tx_rings[qp_idx]; |
3651 | struct i40e_ring *rx_ring = vsi->rx_rings[qp_idx]; | |
41c445ff JB |
3652 | |
3653 | tx_ring->q_vector = q_vector; | |
cd0b6fa6 AD |
3654 | tx_ring->next = q_vector->tx.ring; |
3655 | q_vector->tx.ring = tx_ring; | |
41c445ff | 3656 | q_vector->tx.count++; |
cd0b6fa6 AD |
3657 | |
3658 | rx_ring->q_vector = q_vector; | |
3659 | rx_ring->next = q_vector->rx.ring; | |
3660 | q_vector->rx.ring = rx_ring; | |
3661 | q_vector->rx.count++; | |
41c445ff JB |
3662 | } |
3663 | ||
3664 | /** | |
3665 | * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors | |
3666 | * @vsi: the VSI being configured | |
3667 | * | |
3668 | * This function maps descriptor rings to the queue-specific vectors | |
3669 | * we were allotted through the MSI-X enabling code. Ideally, we'd have | |
3670 | * one vector per queue pair, but on a constrained vector budget, we | |
3671 | * group the queue pairs as "efficiently" as possible. | |
3672 | **/ | |
3673 | static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi *vsi) | |
3674 | { | |
3675 | int qp_remaining = vsi->num_queue_pairs; | |
3676 | int q_vectors = vsi->num_q_vectors; | |
cd0b6fa6 | 3677 | int num_ringpairs; |
41c445ff JB |
3678 | int v_start = 0; |
3679 | int qp_idx = 0; | |
3680 | ||
3681 | /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to | |
3682 | * group them so there are multiple queues per vector. | |
70114ec4 ASJ |
3683 | * It is also important to go through all the vectors available to be |
3684 | * sure that if we don't use all the vectors, that the remaining vectors | |
3685 | * are cleared. This is especially important when decreasing the | |
3686 | * number of queues in use. | |
41c445ff | 3687 | */ |
70114ec4 | 3688 | for (; v_start < q_vectors; v_start++) { |
cd0b6fa6 AD |
3689 | struct i40e_q_vector *q_vector = vsi->q_vectors[v_start]; |
3690 | ||
3691 | num_ringpairs = DIV_ROUND_UP(qp_remaining, q_vectors - v_start); | |
3692 | ||
3693 | q_vector->num_ringpairs = num_ringpairs; | |
3694 | ||
3695 | q_vector->rx.count = 0; | |
3696 | q_vector->tx.count = 0; | |
3697 | q_vector->rx.ring = NULL; | |
3698 | q_vector->tx.ring = NULL; | |
3699 | ||
3700 | while (num_ringpairs--) { | |
26cdc443 | 3701 | i40e_map_vector_to_qp(vsi, v_start, qp_idx); |
cd0b6fa6 AD |
3702 | qp_idx++; |
3703 | qp_remaining--; | |
41c445ff JB |
3704 | } |
3705 | } | |
3706 | } | |
3707 | ||
3708 | /** | |
3709 | * i40e_vsi_request_irq - Request IRQ from the OS | |
3710 | * @vsi: the VSI being configured | |
3711 | * @basename: name for the vector | |
3712 | **/ | |
3713 | static int i40e_vsi_request_irq(struct i40e_vsi *vsi, char *basename) | |
3714 | { | |
3715 | struct i40e_pf *pf = vsi->back; | |
3716 | int err; | |
3717 | ||
3718 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) | |
3719 | err = i40e_vsi_request_irq_msix(vsi, basename); | |
3720 | else if (pf->flags & I40E_FLAG_MSI_ENABLED) | |
3721 | err = request_irq(pf->pdev->irq, i40e_intr, 0, | |
b294ac70 | 3722 | pf->int_name, pf); |
41c445ff JB |
3723 | else |
3724 | err = request_irq(pf->pdev->irq, i40e_intr, IRQF_SHARED, | |
b294ac70 | 3725 | pf->int_name, pf); |
41c445ff JB |
3726 | |
3727 | if (err) | |
3728 | dev_info(&pf->pdev->dev, "request_irq failed, Error %d\n", err); | |
3729 | ||
3730 | return err; | |
3731 | } | |
3732 | ||
3733 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3734 | /** | |
3735 | * i40e_netpoll - A Polling 'interrupt'handler | |
3736 | * @netdev: network interface device structure | |
3737 | * | |
3738 | * This is used by netconsole to send skbs without having to re-enable | |
3739 | * interrupts. It's not called while the normal interrupt routine is executing. | |
3740 | **/ | |
38e00438 VD |
3741 | #ifdef I40E_FCOE |
3742 | void i40e_netpoll(struct net_device *netdev) | |
3743 | #else | |
41c445ff | 3744 | static void i40e_netpoll(struct net_device *netdev) |
38e00438 | 3745 | #endif |
41c445ff JB |
3746 | { |
3747 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
3748 | struct i40e_vsi *vsi = np->vsi; | |
3749 | struct i40e_pf *pf = vsi->back; | |
3750 | int i; | |
3751 | ||
3752 | /* if interface is down do nothing */ | |
3753 | if (test_bit(__I40E_DOWN, &vsi->state)) | |
3754 | return; | |
3755 | ||
41c445ff JB |
3756 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { |
3757 | for (i = 0; i < vsi->num_q_vectors; i++) | |
493fb300 | 3758 | i40e_msix_clean_rings(0, vsi->q_vectors[i]); |
41c445ff JB |
3759 | } else { |
3760 | i40e_intr(pf->pdev->irq, netdev); | |
3761 | } | |
41c445ff JB |
3762 | } |
3763 | #endif | |
3764 | ||
23527308 NP |
3765 | /** |
3766 | * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled | |
3767 | * @pf: the PF being configured | |
3768 | * @pf_q: the PF queue | |
3769 | * @enable: enable or disable state of the queue | |
3770 | * | |
3771 | * This routine will wait for the given Tx queue of the PF to reach the | |
3772 | * enabled or disabled state. | |
3773 | * Returns -ETIMEDOUT in case of failing to reach the requested state after | |
3774 | * multiple retries; else will return 0 in case of success. | |
3775 | **/ | |
3776 | static int i40e_pf_txq_wait(struct i40e_pf *pf, int pf_q, bool enable) | |
3777 | { | |
3778 | int i; | |
3779 | u32 tx_reg; | |
3780 | ||
3781 | for (i = 0; i < I40E_QUEUE_WAIT_RETRY_LIMIT; i++) { | |
3782 | tx_reg = rd32(&pf->hw, I40E_QTX_ENA(pf_q)); | |
3783 | if (enable == !!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK)) | |
3784 | break; | |
3785 | ||
f98a2006 | 3786 | usleep_range(10, 20); |
23527308 NP |
3787 | } |
3788 | if (i >= I40E_QUEUE_WAIT_RETRY_LIMIT) | |
3789 | return -ETIMEDOUT; | |
3790 | ||
3791 | return 0; | |
3792 | } | |
3793 | ||
41c445ff JB |
3794 | /** |
3795 | * i40e_vsi_control_tx - Start or stop a VSI's rings | |
3796 | * @vsi: the VSI being configured | |
3797 | * @enable: start or stop the rings | |
3798 | **/ | |
3799 | static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable) | |
3800 | { | |
3801 | struct i40e_pf *pf = vsi->back; | |
3802 | struct i40e_hw *hw = &pf->hw; | |
23527308 | 3803 | int i, j, pf_q, ret = 0; |
41c445ff JB |
3804 | u32 tx_reg; |
3805 | ||
3806 | pf_q = vsi->base_queue; | |
3807 | for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) { | |
351499ab MJ |
3808 | |
3809 | /* warn the TX unit of coming changes */ | |
3810 | i40e_pre_tx_queue_cfg(&pf->hw, pf_q, enable); | |
3811 | if (!enable) | |
f98a2006 | 3812 | usleep_range(10, 20); |
351499ab | 3813 | |
6c5ef620 | 3814 | for (j = 0; j < 50; j++) { |
41c445ff | 3815 | tx_reg = rd32(hw, I40E_QTX_ENA(pf_q)); |
6c5ef620 MW |
3816 | if (((tx_reg >> I40E_QTX_ENA_QENA_REQ_SHIFT) & 1) == |
3817 | ((tx_reg >> I40E_QTX_ENA_QENA_STAT_SHIFT) & 1)) | |
3818 | break; | |
3819 | usleep_range(1000, 2000); | |
3820 | } | |
fda972f6 | 3821 | /* Skip if the queue is already in the requested state */ |
7c122007 | 3822 | if (enable == !!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK)) |
fda972f6 | 3823 | continue; |
41c445ff JB |
3824 | |
3825 | /* turn on/off the queue */ | |
c5c9eb9e SN |
3826 | if (enable) { |
3827 | wr32(hw, I40E_QTX_HEAD(pf_q), 0); | |
6c5ef620 | 3828 | tx_reg |= I40E_QTX_ENA_QENA_REQ_MASK; |
c5c9eb9e | 3829 | } else { |
41c445ff | 3830 | tx_reg &= ~I40E_QTX_ENA_QENA_REQ_MASK; |
c5c9eb9e | 3831 | } |
41c445ff JB |
3832 | |
3833 | wr32(hw, I40E_QTX_ENA(pf_q), tx_reg); | |
69129dc3 NP |
3834 | /* No waiting for the Tx queue to disable */ |
3835 | if (!enable && test_bit(__I40E_PORT_TX_SUSPENDED, &pf->state)) | |
3836 | continue; | |
41c445ff JB |
3837 | |
3838 | /* wait for the change to finish */ | |
23527308 NP |
3839 | ret = i40e_pf_txq_wait(pf, pf_q, enable); |
3840 | if (ret) { | |
3841 | dev_info(&pf->pdev->dev, | |
fb43201f SN |
3842 | "VSI seid %d Tx ring %d %sable timeout\n", |
3843 | vsi->seid, pf_q, (enable ? "en" : "dis")); | |
23527308 | 3844 | break; |
41c445ff JB |
3845 | } |
3846 | } | |
3847 | ||
7134f9ce JB |
3848 | if (hw->revision_id == 0) |
3849 | mdelay(50); | |
23527308 NP |
3850 | return ret; |
3851 | } | |
3852 | ||
3853 | /** | |
3854 | * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled | |
3855 | * @pf: the PF being configured | |
3856 | * @pf_q: the PF queue | |
3857 | * @enable: enable or disable state of the queue | |
3858 | * | |
3859 | * This routine will wait for the given Rx queue of the PF to reach the | |
3860 | * enabled or disabled state. | |
3861 | * Returns -ETIMEDOUT in case of failing to reach the requested state after | |
3862 | * multiple retries; else will return 0 in case of success. | |
3863 | **/ | |
3864 | static int i40e_pf_rxq_wait(struct i40e_pf *pf, int pf_q, bool enable) | |
3865 | { | |
3866 | int i; | |
3867 | u32 rx_reg; | |
3868 | ||
3869 | for (i = 0; i < I40E_QUEUE_WAIT_RETRY_LIMIT; i++) { | |
3870 | rx_reg = rd32(&pf->hw, I40E_QRX_ENA(pf_q)); | |
3871 | if (enable == !!(rx_reg & I40E_QRX_ENA_QENA_STAT_MASK)) | |
3872 | break; | |
3873 | ||
f98a2006 | 3874 | usleep_range(10, 20); |
23527308 NP |
3875 | } |
3876 | if (i >= I40E_QUEUE_WAIT_RETRY_LIMIT) | |
3877 | return -ETIMEDOUT; | |
7134f9ce | 3878 | |
41c445ff JB |
3879 | return 0; |
3880 | } | |
3881 | ||
3882 | /** | |
3883 | * i40e_vsi_control_rx - Start or stop a VSI's rings | |
3884 | * @vsi: the VSI being configured | |
3885 | * @enable: start or stop the rings | |
3886 | **/ | |
3887 | static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable) | |
3888 | { | |
3889 | struct i40e_pf *pf = vsi->back; | |
3890 | struct i40e_hw *hw = &pf->hw; | |
23527308 | 3891 | int i, j, pf_q, ret = 0; |
41c445ff JB |
3892 | u32 rx_reg; |
3893 | ||
3894 | pf_q = vsi->base_queue; | |
3895 | for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) { | |
6c5ef620 | 3896 | for (j = 0; j < 50; j++) { |
41c445ff | 3897 | rx_reg = rd32(hw, I40E_QRX_ENA(pf_q)); |
6c5ef620 MW |
3898 | if (((rx_reg >> I40E_QRX_ENA_QENA_REQ_SHIFT) & 1) == |
3899 | ((rx_reg >> I40E_QRX_ENA_QENA_STAT_SHIFT) & 1)) | |
3900 | break; | |
3901 | usleep_range(1000, 2000); | |
3902 | } | |
41c445ff | 3903 | |
7c122007 CS |
3904 | /* Skip if the queue is already in the requested state */ |
3905 | if (enable == !!(rx_reg & I40E_QRX_ENA_QENA_STAT_MASK)) | |
3906 | continue; | |
41c445ff JB |
3907 | |
3908 | /* turn on/off the queue */ | |
3909 | if (enable) | |
6c5ef620 | 3910 | rx_reg |= I40E_QRX_ENA_QENA_REQ_MASK; |
41c445ff | 3911 | else |
6c5ef620 | 3912 | rx_reg &= ~I40E_QRX_ENA_QENA_REQ_MASK; |
41c445ff JB |
3913 | wr32(hw, I40E_QRX_ENA(pf_q), rx_reg); |
3914 | ||
3915 | /* wait for the change to finish */ | |
23527308 NP |
3916 | ret = i40e_pf_rxq_wait(pf, pf_q, enable); |
3917 | if (ret) { | |
3918 | dev_info(&pf->pdev->dev, | |
fb43201f SN |
3919 | "VSI seid %d Rx ring %d %sable timeout\n", |
3920 | vsi->seid, pf_q, (enable ? "en" : "dis")); | |
23527308 | 3921 | break; |
41c445ff JB |
3922 | } |
3923 | } | |
3924 | ||
23527308 | 3925 | return ret; |
41c445ff JB |
3926 | } |
3927 | ||
3928 | /** | |
3929 | * i40e_vsi_control_rings - Start or stop a VSI's rings | |
3930 | * @vsi: the VSI being configured | |
3931 | * @enable: start or stop the rings | |
3932 | **/ | |
fc18eaa0 | 3933 | int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request) |
41c445ff | 3934 | { |
3b867b28 | 3935 | int ret = 0; |
41c445ff JB |
3936 | |
3937 | /* do rx first for enable and last for disable */ | |
3938 | if (request) { | |
3939 | ret = i40e_vsi_control_rx(vsi, request); | |
3940 | if (ret) | |
3941 | return ret; | |
3942 | ret = i40e_vsi_control_tx(vsi, request); | |
3943 | } else { | |
3b867b28 ASJ |
3944 | /* Ignore return value, we need to shutdown whatever we can */ |
3945 | i40e_vsi_control_tx(vsi, request); | |
3946 | i40e_vsi_control_rx(vsi, request); | |
41c445ff JB |
3947 | } |
3948 | ||
3949 | return ret; | |
3950 | } | |
3951 | ||
3952 | /** | |
3953 | * i40e_vsi_free_irq - Free the irq association with the OS | |
3954 | * @vsi: the VSI being configured | |
3955 | **/ | |
3956 | static void i40e_vsi_free_irq(struct i40e_vsi *vsi) | |
3957 | { | |
3958 | struct i40e_pf *pf = vsi->back; | |
3959 | struct i40e_hw *hw = &pf->hw; | |
3960 | int base = vsi->base_vector; | |
3961 | u32 val, qp; | |
3962 | int i; | |
3963 | ||
3964 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { | |
3965 | if (!vsi->q_vectors) | |
3966 | return; | |
3967 | ||
63741846 SN |
3968 | if (!vsi->irqs_ready) |
3969 | return; | |
3970 | ||
3971 | vsi->irqs_ready = false; | |
41c445ff JB |
3972 | for (i = 0; i < vsi->num_q_vectors; i++) { |
3973 | u16 vector = i + base; | |
3974 | ||
3975 | /* free only the irqs that were actually requested */ | |
78681b1f SN |
3976 | if (!vsi->q_vectors[i] || |
3977 | !vsi->q_vectors[i]->num_ringpairs) | |
41c445ff JB |
3978 | continue; |
3979 | ||
3980 | /* clear the affinity_mask in the IRQ descriptor */ | |
3981 | irq_set_affinity_hint(pf->msix_entries[vector].vector, | |
3982 | NULL); | |
3983 | free_irq(pf->msix_entries[vector].vector, | |
493fb300 | 3984 | vsi->q_vectors[i]); |
41c445ff JB |
3985 | |
3986 | /* Tear down the interrupt queue link list | |
3987 | * | |
3988 | * We know that they come in pairs and always | |
3989 | * the Rx first, then the Tx. To clear the | |
3990 | * link list, stick the EOL value into the | |
3991 | * next_q field of the registers. | |
3992 | */ | |
3993 | val = rd32(hw, I40E_PFINT_LNKLSTN(vector - 1)); | |
3994 | qp = (val & I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK) | |
3995 | >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT; | |
3996 | val |= I40E_QUEUE_END_OF_LIST | |
3997 | << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT; | |
3998 | wr32(hw, I40E_PFINT_LNKLSTN(vector - 1), val); | |
3999 | ||
4000 | while (qp != I40E_QUEUE_END_OF_LIST) { | |
4001 | u32 next; | |
4002 | ||
4003 | val = rd32(hw, I40E_QINT_RQCTL(qp)); | |
4004 | ||
4005 | val &= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK | | |
4006 | I40E_QINT_RQCTL_MSIX0_INDX_MASK | | |
4007 | I40E_QINT_RQCTL_CAUSE_ENA_MASK | | |
4008 | I40E_QINT_RQCTL_INTEVENT_MASK); | |
4009 | ||
4010 | val |= (I40E_QINT_RQCTL_ITR_INDX_MASK | | |
4011 | I40E_QINT_RQCTL_NEXTQ_INDX_MASK); | |
4012 | ||
4013 | wr32(hw, I40E_QINT_RQCTL(qp), val); | |
4014 | ||
4015 | val = rd32(hw, I40E_QINT_TQCTL(qp)); | |
4016 | ||
4017 | next = (val & I40E_QINT_TQCTL_NEXTQ_INDX_MASK) | |
4018 | >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT; | |
4019 | ||
4020 | val &= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK | | |
4021 | I40E_QINT_TQCTL_MSIX0_INDX_MASK | | |
4022 | I40E_QINT_TQCTL_CAUSE_ENA_MASK | | |
4023 | I40E_QINT_TQCTL_INTEVENT_MASK); | |
4024 | ||
4025 | val |= (I40E_QINT_TQCTL_ITR_INDX_MASK | | |
4026 | I40E_QINT_TQCTL_NEXTQ_INDX_MASK); | |
4027 | ||
4028 | wr32(hw, I40E_QINT_TQCTL(qp), val); | |
4029 | qp = next; | |
4030 | } | |
4031 | } | |
4032 | } else { | |
4033 | free_irq(pf->pdev->irq, pf); | |
4034 | ||
4035 | val = rd32(hw, I40E_PFINT_LNKLST0); | |
4036 | qp = (val & I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK) | |
4037 | >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT; | |
4038 | val |= I40E_QUEUE_END_OF_LIST | |
4039 | << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT; | |
4040 | wr32(hw, I40E_PFINT_LNKLST0, val); | |
4041 | ||
4042 | val = rd32(hw, I40E_QINT_RQCTL(qp)); | |
4043 | val &= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK | | |
4044 | I40E_QINT_RQCTL_MSIX0_INDX_MASK | | |
4045 | I40E_QINT_RQCTL_CAUSE_ENA_MASK | | |
4046 | I40E_QINT_RQCTL_INTEVENT_MASK); | |
4047 | ||
4048 | val |= (I40E_QINT_RQCTL_ITR_INDX_MASK | | |
4049 | I40E_QINT_RQCTL_NEXTQ_INDX_MASK); | |
4050 | ||
4051 | wr32(hw, I40E_QINT_RQCTL(qp), val); | |
4052 | ||
4053 | val = rd32(hw, I40E_QINT_TQCTL(qp)); | |
4054 | ||
4055 | val &= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK | | |
4056 | I40E_QINT_TQCTL_MSIX0_INDX_MASK | | |
4057 | I40E_QINT_TQCTL_CAUSE_ENA_MASK | | |
4058 | I40E_QINT_TQCTL_INTEVENT_MASK); | |
4059 | ||
4060 | val |= (I40E_QINT_TQCTL_ITR_INDX_MASK | | |
4061 | I40E_QINT_TQCTL_NEXTQ_INDX_MASK); | |
4062 | ||
4063 | wr32(hw, I40E_QINT_TQCTL(qp), val); | |
4064 | } | |
4065 | } | |
4066 | ||
493fb300 AD |
4067 | /** |
4068 | * i40e_free_q_vector - Free memory allocated for specific interrupt vector | |
4069 | * @vsi: the VSI being configured | |
4070 | * @v_idx: Index of vector to be freed | |
4071 | * | |
4072 | * This function frees the memory allocated to the q_vector. In addition if | |
4073 | * NAPI is enabled it will delete any references to the NAPI struct prior | |
4074 | * to freeing the q_vector. | |
4075 | **/ | |
4076 | static void i40e_free_q_vector(struct i40e_vsi *vsi, int v_idx) | |
4077 | { | |
4078 | struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx]; | |
cd0b6fa6 | 4079 | struct i40e_ring *ring; |
493fb300 AD |
4080 | |
4081 | if (!q_vector) | |
4082 | return; | |
4083 | ||
4084 | /* disassociate q_vector from rings */ | |
cd0b6fa6 AD |
4085 | i40e_for_each_ring(ring, q_vector->tx) |
4086 | ring->q_vector = NULL; | |
4087 | ||
4088 | i40e_for_each_ring(ring, q_vector->rx) | |
4089 | ring->q_vector = NULL; | |
493fb300 AD |
4090 | |
4091 | /* only VSI w/ an associated netdev is set up w/ NAPI */ | |
4092 | if (vsi->netdev) | |
4093 | netif_napi_del(&q_vector->napi); | |
4094 | ||
4095 | vsi->q_vectors[v_idx] = NULL; | |
4096 | ||
4097 | kfree_rcu(q_vector, rcu); | |
4098 | } | |
4099 | ||
41c445ff JB |
4100 | /** |
4101 | * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors | |
4102 | * @vsi: the VSI being un-configured | |
4103 | * | |
4104 | * This frees the memory allocated to the q_vectors and | |
4105 | * deletes references to the NAPI struct. | |
4106 | **/ | |
4107 | static void i40e_vsi_free_q_vectors(struct i40e_vsi *vsi) | |
4108 | { | |
4109 | int v_idx; | |
4110 | ||
493fb300 AD |
4111 | for (v_idx = 0; v_idx < vsi->num_q_vectors; v_idx++) |
4112 | i40e_free_q_vector(vsi, v_idx); | |
41c445ff JB |
4113 | } |
4114 | ||
4115 | /** | |
4116 | * i40e_reset_interrupt_capability - Disable interrupt setup in OS | |
4117 | * @pf: board private structure | |
4118 | **/ | |
4119 | static void i40e_reset_interrupt_capability(struct i40e_pf *pf) | |
4120 | { | |
4121 | /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */ | |
4122 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { | |
4123 | pci_disable_msix(pf->pdev); | |
4124 | kfree(pf->msix_entries); | |
4125 | pf->msix_entries = NULL; | |
3b444399 SN |
4126 | kfree(pf->irq_pile); |
4127 | pf->irq_pile = NULL; | |
41c445ff JB |
4128 | } else if (pf->flags & I40E_FLAG_MSI_ENABLED) { |
4129 | pci_disable_msi(pf->pdev); | |
4130 | } | |
4131 | pf->flags &= ~(I40E_FLAG_MSIX_ENABLED | I40E_FLAG_MSI_ENABLED); | |
4132 | } | |
4133 | ||
4134 | /** | |
4135 | * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings | |
4136 | * @pf: board private structure | |
4137 | * | |
4138 | * We go through and clear interrupt specific resources and reset the structure | |
4139 | * to pre-load conditions | |
4140 | **/ | |
4141 | static void i40e_clear_interrupt_scheme(struct i40e_pf *pf) | |
4142 | { | |
4143 | int i; | |
4144 | ||
e147758d SN |
4145 | i40e_stop_misc_vector(pf); |
4146 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { | |
4147 | synchronize_irq(pf->msix_entries[0].vector); | |
4148 | free_irq(pf->msix_entries[0].vector, pf); | |
4149 | } | |
4150 | ||
41c445ff | 4151 | i40e_put_lump(pf->irq_pile, 0, I40E_PILE_VALID_BIT-1); |
505682cd | 4152 | for (i = 0; i < pf->num_alloc_vsi; i++) |
41c445ff JB |
4153 | if (pf->vsi[i]) |
4154 | i40e_vsi_free_q_vectors(pf->vsi[i]); | |
4155 | i40e_reset_interrupt_capability(pf); | |
4156 | } | |
4157 | ||
4158 | /** | |
4159 | * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI | |
4160 | * @vsi: the VSI being configured | |
4161 | **/ | |
4162 | static void i40e_napi_enable_all(struct i40e_vsi *vsi) | |
4163 | { | |
4164 | int q_idx; | |
4165 | ||
4166 | if (!vsi->netdev) | |
4167 | return; | |
4168 | ||
4169 | for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) | |
493fb300 | 4170 | napi_enable(&vsi->q_vectors[q_idx]->napi); |
41c445ff JB |
4171 | } |
4172 | ||
4173 | /** | |
4174 | * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI | |
4175 | * @vsi: the VSI being configured | |
4176 | **/ | |
4177 | static void i40e_napi_disable_all(struct i40e_vsi *vsi) | |
4178 | { | |
4179 | int q_idx; | |
4180 | ||
4181 | if (!vsi->netdev) | |
4182 | return; | |
4183 | ||
4184 | for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) | |
493fb300 | 4185 | napi_disable(&vsi->q_vectors[q_idx]->napi); |
41c445ff JB |
4186 | } |
4187 | ||
90ef8d47 SN |
4188 | /** |
4189 | * i40e_vsi_close - Shut down a VSI | |
4190 | * @vsi: the vsi to be quelled | |
4191 | **/ | |
4192 | static void i40e_vsi_close(struct i40e_vsi *vsi) | |
4193 | { | |
4194 | if (!test_and_set_bit(__I40E_DOWN, &vsi->state)) | |
4195 | i40e_down(vsi); | |
4196 | i40e_vsi_free_irq(vsi); | |
4197 | i40e_vsi_free_tx_resources(vsi); | |
4198 | i40e_vsi_free_rx_resources(vsi); | |
92faef85 | 4199 | vsi->current_netdev_flags = 0; |
90ef8d47 SN |
4200 | } |
4201 | ||
41c445ff JB |
4202 | /** |
4203 | * i40e_quiesce_vsi - Pause a given VSI | |
4204 | * @vsi: the VSI being paused | |
4205 | **/ | |
4206 | static void i40e_quiesce_vsi(struct i40e_vsi *vsi) | |
4207 | { | |
4208 | if (test_bit(__I40E_DOWN, &vsi->state)) | |
4209 | return; | |
4210 | ||
d341b7a5 NP |
4211 | /* No need to disable FCoE VSI when Tx suspended */ |
4212 | if ((test_bit(__I40E_PORT_TX_SUSPENDED, &vsi->back->state)) && | |
4213 | vsi->type == I40E_VSI_FCOE) { | |
4214 | dev_dbg(&vsi->back->pdev->dev, | |
fb43201f | 4215 | "VSI seid %d skipping FCoE VSI disable\n", vsi->seid); |
d341b7a5 NP |
4216 | return; |
4217 | } | |
4218 | ||
41c445ff | 4219 | set_bit(__I40E_NEEDS_RESTART, &vsi->state); |
6995b36c | 4220 | if (vsi->netdev && netif_running(vsi->netdev)) |
41c445ff | 4221 | vsi->netdev->netdev_ops->ndo_stop(vsi->netdev); |
6995b36c | 4222 | else |
90ef8d47 | 4223 | i40e_vsi_close(vsi); |
41c445ff JB |
4224 | } |
4225 | ||
4226 | /** | |
4227 | * i40e_unquiesce_vsi - Resume a given VSI | |
4228 | * @vsi: the VSI being resumed | |
4229 | **/ | |
4230 | static void i40e_unquiesce_vsi(struct i40e_vsi *vsi) | |
4231 | { | |
4232 | if (!test_bit(__I40E_NEEDS_RESTART, &vsi->state)) | |
4233 | return; | |
4234 | ||
4235 | clear_bit(__I40E_NEEDS_RESTART, &vsi->state); | |
4236 | if (vsi->netdev && netif_running(vsi->netdev)) | |
4237 | vsi->netdev->netdev_ops->ndo_open(vsi->netdev); | |
4238 | else | |
8276f757 | 4239 | i40e_vsi_open(vsi); /* this clears the DOWN bit */ |
41c445ff JB |
4240 | } |
4241 | ||
4242 | /** | |
4243 | * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF | |
4244 | * @pf: the PF | |
4245 | **/ | |
4246 | static void i40e_pf_quiesce_all_vsi(struct i40e_pf *pf) | |
4247 | { | |
4248 | int v; | |
4249 | ||
505682cd | 4250 | for (v = 0; v < pf->num_alloc_vsi; v++) { |
41c445ff JB |
4251 | if (pf->vsi[v]) |
4252 | i40e_quiesce_vsi(pf->vsi[v]); | |
4253 | } | |
4254 | } | |
4255 | ||
4256 | /** | |
4257 | * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF | |
4258 | * @pf: the PF | |
4259 | **/ | |
4260 | static void i40e_pf_unquiesce_all_vsi(struct i40e_pf *pf) | |
4261 | { | |
4262 | int v; | |
4263 | ||
505682cd | 4264 | for (v = 0; v < pf->num_alloc_vsi; v++) { |
41c445ff JB |
4265 | if (pf->vsi[v]) |
4266 | i40e_unquiesce_vsi(pf->vsi[v]); | |
4267 | } | |
4268 | } | |
4269 | ||
69129dc3 NP |
4270 | #ifdef CONFIG_I40E_DCB |
4271 | /** | |
4272 | * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled | |
4273 | * @vsi: the VSI being configured | |
4274 | * | |
4275 | * This function waits for the given VSI's Tx queues to be disabled. | |
4276 | **/ | |
4277 | static int i40e_vsi_wait_txq_disabled(struct i40e_vsi *vsi) | |
4278 | { | |
4279 | struct i40e_pf *pf = vsi->back; | |
4280 | int i, pf_q, ret; | |
4281 | ||
4282 | pf_q = vsi->base_queue; | |
4283 | for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) { | |
4284 | /* Check and wait for the disable status of the queue */ | |
4285 | ret = i40e_pf_txq_wait(pf, pf_q, false); | |
4286 | if (ret) { | |
4287 | dev_info(&pf->pdev->dev, | |
fb43201f SN |
4288 | "VSI seid %d Tx ring %d disable timeout\n", |
4289 | vsi->seid, pf_q); | |
69129dc3 NP |
4290 | return ret; |
4291 | } | |
4292 | } | |
4293 | ||
4294 | return 0; | |
4295 | } | |
4296 | ||
4297 | /** | |
4298 | * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled | |
4299 | * @pf: the PF | |
4300 | * | |
4301 | * This function waits for the Tx queues to be in disabled state for all the | |
4302 | * VSIs that are managed by this PF. | |
4303 | **/ | |
4304 | static int i40e_pf_wait_txq_disabled(struct i40e_pf *pf) | |
4305 | { | |
4306 | int v, ret = 0; | |
4307 | ||
4308 | for (v = 0; v < pf->hw.func_caps.num_vsis; v++) { | |
d341b7a5 NP |
4309 | /* No need to wait for FCoE VSI queues */ |
4310 | if (pf->vsi[v] && pf->vsi[v]->type != I40E_VSI_FCOE) { | |
69129dc3 NP |
4311 | ret = i40e_vsi_wait_txq_disabled(pf->vsi[v]); |
4312 | if (ret) | |
4313 | break; | |
4314 | } | |
4315 | } | |
4316 | ||
4317 | return ret; | |
4318 | } | |
4319 | ||
4320 | #endif | |
b03a8c1f KP |
4321 | |
4322 | /** | |
4323 | * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue | |
4324 | * @q_idx: TX queue number | |
4325 | * @vsi: Pointer to VSI struct | |
4326 | * | |
4327 | * This function checks specified queue for given VSI. Detects hung condition. | |
4328 | * Sets hung bit since it is two step process. Before next run of service task | |
4329 | * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not, | |
4330 | * hung condition remain unchanged and during subsequent run, this function | |
4331 | * issues SW interrupt to recover from hung condition. | |
4332 | **/ | |
4333 | static void i40e_detect_recover_hung_queue(int q_idx, struct i40e_vsi *vsi) | |
4334 | { | |
4335 | struct i40e_ring *tx_ring = NULL; | |
4336 | struct i40e_pf *pf; | |
4337 | u32 head, val, tx_pending; | |
4338 | int i; | |
4339 | ||
4340 | pf = vsi->back; | |
4341 | ||
4342 | /* now that we have an index, find the tx_ring struct */ | |
4343 | for (i = 0; i < vsi->num_queue_pairs; i++) { | |
4344 | if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) { | |
4345 | if (q_idx == vsi->tx_rings[i]->queue_index) { | |
4346 | tx_ring = vsi->tx_rings[i]; | |
4347 | break; | |
4348 | } | |
4349 | } | |
4350 | } | |
4351 | ||
4352 | if (!tx_ring) | |
4353 | return; | |
4354 | ||
4355 | /* Read interrupt register */ | |
4356 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) | |
4357 | val = rd32(&pf->hw, | |
4358 | I40E_PFINT_DYN_CTLN(tx_ring->q_vector->v_idx + | |
4359 | tx_ring->vsi->base_vector - 1)); | |
4360 | else | |
4361 | val = rd32(&pf->hw, I40E_PFINT_DYN_CTL0); | |
4362 | ||
4363 | head = i40e_get_head(tx_ring); | |
4364 | ||
4365 | tx_pending = i40e_get_tx_pending(tx_ring); | |
4366 | ||
4367 | /* Interrupts are disabled and TX pending is non-zero, | |
4368 | * trigger the SW interrupt (don't wait). Worst case | |
4369 | * there will be one extra interrupt which may result | |
4370 | * into not cleaning any queues because queues are cleaned. | |
4371 | */ | |
4372 | if (tx_pending && (!(val & I40E_PFINT_DYN_CTLN_INTENA_MASK))) | |
4373 | i40e_force_wb(vsi, tx_ring->q_vector); | |
4374 | } | |
4375 | ||
4376 | /** | |
4377 | * i40e_detect_recover_hung - Function to detect and recover hung_queues | |
4378 | * @pf: pointer to PF struct | |
4379 | * | |
4380 | * LAN VSI has netdev and netdev has TX queues. This function is to check | |
4381 | * each of those TX queues if they are hung, trigger recovery by issuing | |
4382 | * SW interrupt. | |
4383 | **/ | |
4384 | static void i40e_detect_recover_hung(struct i40e_pf *pf) | |
4385 | { | |
4386 | struct net_device *netdev; | |
4387 | struct i40e_vsi *vsi; | |
4388 | int i; | |
4389 | ||
4390 | /* Only for LAN VSI */ | |
4391 | vsi = pf->vsi[pf->lan_vsi]; | |
4392 | ||
4393 | if (!vsi) | |
4394 | return; | |
4395 | ||
4396 | /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */ | |
4397 | if (test_bit(__I40E_DOWN, &vsi->back->state) || | |
4398 | test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state)) | |
4399 | return; | |
4400 | ||
4401 | /* Make sure type is MAIN VSI */ | |
4402 | if (vsi->type != I40E_VSI_MAIN) | |
4403 | return; | |
4404 | ||
4405 | netdev = vsi->netdev; | |
4406 | if (!netdev) | |
4407 | return; | |
4408 | ||
4409 | /* Bail out if netif_carrier is not OK */ | |
4410 | if (!netif_carrier_ok(netdev)) | |
4411 | return; | |
4412 | ||
4413 | /* Go thru' TX queues for netdev */ | |
4414 | for (i = 0; i < netdev->num_tx_queues; i++) { | |
4415 | struct netdev_queue *q; | |
4416 | ||
4417 | q = netdev_get_tx_queue(netdev, i); | |
4418 | if (q) | |
4419 | i40e_detect_recover_hung_queue(i, vsi); | |
4420 | } | |
4421 | } | |
4422 | ||
63d7e5a4 NP |
4423 | /** |
4424 | * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP | |
b40c82e6 | 4425 | * @pf: pointer to PF |
63d7e5a4 NP |
4426 | * |
4427 | * Get TC map for ISCSI PF type that will include iSCSI TC | |
4428 | * and LAN TC. | |
4429 | **/ | |
4430 | static u8 i40e_get_iscsi_tc_map(struct i40e_pf *pf) | |
4431 | { | |
4432 | struct i40e_dcb_app_priority_table app; | |
4433 | struct i40e_hw *hw = &pf->hw; | |
4434 | u8 enabled_tc = 1; /* TC0 is always enabled */ | |
4435 | u8 tc, i; | |
4436 | /* Get the iSCSI APP TLV */ | |
4437 | struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config; | |
4438 | ||
4439 | for (i = 0; i < dcbcfg->numapps; i++) { | |
4440 | app = dcbcfg->app[i]; | |
4441 | if (app.selector == I40E_APP_SEL_TCPIP && | |
4442 | app.protocolid == I40E_APP_PROTOID_ISCSI) { | |
4443 | tc = dcbcfg->etscfg.prioritytable[app.priority]; | |
41a1d04b | 4444 | enabled_tc |= BIT_ULL(tc); |
63d7e5a4 NP |
4445 | break; |
4446 | } | |
4447 | } | |
4448 | ||
4449 | return enabled_tc; | |
4450 | } | |
4451 | ||
41c445ff JB |
4452 | /** |
4453 | * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config | |
4454 | * @dcbcfg: the corresponding DCBx configuration structure | |
4455 | * | |
4456 | * Return the number of TCs from given DCBx configuration | |
4457 | **/ | |
4458 | static u8 i40e_dcb_get_num_tc(struct i40e_dcbx_config *dcbcfg) | |
4459 | { | |
078b5876 JB |
4460 | u8 num_tc = 0; |
4461 | int i; | |
41c445ff JB |
4462 | |
4463 | /* Scan the ETS Config Priority Table to find | |
4464 | * traffic class enabled for a given priority | |
4465 | * and use the traffic class index to get the | |
4466 | * number of traffic classes enabled | |
4467 | */ | |
4468 | for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { | |
4469 | if (dcbcfg->etscfg.prioritytable[i] > num_tc) | |
4470 | num_tc = dcbcfg->etscfg.prioritytable[i]; | |
4471 | } | |
4472 | ||
4473 | /* Traffic class index starts from zero so | |
4474 | * increment to return the actual count | |
4475 | */ | |
078b5876 | 4476 | return num_tc + 1; |
41c445ff JB |
4477 | } |
4478 | ||
4479 | /** | |
4480 | * i40e_dcb_get_enabled_tc - Get enabled traffic classes | |
4481 | * @dcbcfg: the corresponding DCBx configuration structure | |
4482 | * | |
4483 | * Query the current DCB configuration and return the number of | |
4484 | * traffic classes enabled from the given DCBX config | |
4485 | **/ | |
4486 | static u8 i40e_dcb_get_enabled_tc(struct i40e_dcbx_config *dcbcfg) | |
4487 | { | |
4488 | u8 num_tc = i40e_dcb_get_num_tc(dcbcfg); | |
4489 | u8 enabled_tc = 1; | |
4490 | u8 i; | |
4491 | ||
4492 | for (i = 0; i < num_tc; i++) | |
41a1d04b | 4493 | enabled_tc |= BIT(i); |
41c445ff JB |
4494 | |
4495 | return enabled_tc; | |
4496 | } | |
4497 | ||
4498 | /** | |
4499 | * i40e_pf_get_num_tc - Get enabled traffic classes for PF | |
4500 | * @pf: PF being queried | |
4501 | * | |
4502 | * Return number of traffic classes enabled for the given PF | |
4503 | **/ | |
4504 | static u8 i40e_pf_get_num_tc(struct i40e_pf *pf) | |
4505 | { | |
4506 | struct i40e_hw *hw = &pf->hw; | |
4507 | u8 i, enabled_tc; | |
4508 | u8 num_tc = 0; | |
4509 | struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config; | |
4510 | ||
4511 | /* If DCB is not enabled then always in single TC */ | |
4512 | if (!(pf->flags & I40E_FLAG_DCB_ENABLED)) | |
4513 | return 1; | |
4514 | ||
63d7e5a4 NP |
4515 | /* SFP mode will be enabled for all TCs on port */ |
4516 | if (!(pf->flags & I40E_FLAG_MFP_ENABLED)) | |
4517 | return i40e_dcb_get_num_tc(dcbcfg); | |
4518 | ||
41c445ff | 4519 | /* MFP mode return count of enabled TCs for this PF */ |
63d7e5a4 NP |
4520 | if (pf->hw.func_caps.iscsi) |
4521 | enabled_tc = i40e_get_iscsi_tc_map(pf); | |
4522 | else | |
fc51de96 | 4523 | return 1; /* Only TC0 */ |
41c445ff | 4524 | |
63d7e5a4 NP |
4525 | /* At least have TC0 */ |
4526 | enabled_tc = (enabled_tc ? enabled_tc : 0x1); | |
4527 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
41a1d04b | 4528 | if (enabled_tc & BIT_ULL(i)) |
63d7e5a4 NP |
4529 | num_tc++; |
4530 | } | |
4531 | return num_tc; | |
41c445ff JB |
4532 | } |
4533 | ||
4534 | /** | |
4535 | * i40e_pf_get_default_tc - Get bitmap for first enabled TC | |
4536 | * @pf: PF being queried | |
4537 | * | |
4538 | * Return a bitmap for first enabled traffic class for this PF. | |
4539 | **/ | |
4540 | static u8 i40e_pf_get_default_tc(struct i40e_pf *pf) | |
4541 | { | |
4542 | u8 enabled_tc = pf->hw.func_caps.enabled_tcmap; | |
4543 | u8 i = 0; | |
4544 | ||
4545 | if (!enabled_tc) | |
4546 | return 0x1; /* TC0 */ | |
4547 | ||
4548 | /* Find the first enabled TC */ | |
4549 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
41a1d04b | 4550 | if (enabled_tc & BIT_ULL(i)) |
41c445ff JB |
4551 | break; |
4552 | } | |
4553 | ||
41a1d04b | 4554 | return BIT(i); |
41c445ff JB |
4555 | } |
4556 | ||
4557 | /** | |
4558 | * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes | |
4559 | * @pf: PF being queried | |
4560 | * | |
4561 | * Return a bitmap for enabled traffic classes for this PF. | |
4562 | **/ | |
4563 | static u8 i40e_pf_get_tc_map(struct i40e_pf *pf) | |
4564 | { | |
4565 | /* If DCB is not enabled for this PF then just return default TC */ | |
4566 | if (!(pf->flags & I40E_FLAG_DCB_ENABLED)) | |
4567 | return i40e_pf_get_default_tc(pf); | |
4568 | ||
41c445ff | 4569 | /* SFP mode we want PF to be enabled for all TCs */ |
63d7e5a4 NP |
4570 | if (!(pf->flags & I40E_FLAG_MFP_ENABLED)) |
4571 | return i40e_dcb_get_enabled_tc(&pf->hw.local_dcbx_config); | |
4572 | ||
fc51de96 | 4573 | /* MFP enabled and iSCSI PF type */ |
63d7e5a4 NP |
4574 | if (pf->hw.func_caps.iscsi) |
4575 | return i40e_get_iscsi_tc_map(pf); | |
4576 | else | |
fc51de96 | 4577 | return i40e_pf_get_default_tc(pf); |
41c445ff JB |
4578 | } |
4579 | ||
4580 | /** | |
4581 | * i40e_vsi_get_bw_info - Query VSI BW Information | |
4582 | * @vsi: the VSI being queried | |
4583 | * | |
4584 | * Returns 0 on success, negative value on failure | |
4585 | **/ | |
4586 | static int i40e_vsi_get_bw_info(struct i40e_vsi *vsi) | |
4587 | { | |
4588 | struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config = {0}; | |
4589 | struct i40e_aqc_query_vsi_bw_config_resp bw_config = {0}; | |
4590 | struct i40e_pf *pf = vsi->back; | |
4591 | struct i40e_hw *hw = &pf->hw; | |
f1c7e72e | 4592 | i40e_status ret; |
41c445ff | 4593 | u32 tc_bw_max; |
41c445ff JB |
4594 | int i; |
4595 | ||
4596 | /* Get the VSI level BW configuration */ | |
f1c7e72e SN |
4597 | ret = i40e_aq_query_vsi_bw_config(hw, vsi->seid, &bw_config, NULL); |
4598 | if (ret) { | |
41c445ff | 4599 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
4600 | "couldn't get PF vsi bw config, err %s aq_err %s\n", |
4601 | i40e_stat_str(&pf->hw, ret), | |
4602 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
dcae29be | 4603 | return -EINVAL; |
41c445ff JB |
4604 | } |
4605 | ||
4606 | /* Get the VSI level BW configuration per TC */ | |
f1c7e72e SN |
4607 | ret = i40e_aq_query_vsi_ets_sla_config(hw, vsi->seid, &bw_ets_config, |
4608 | NULL); | |
4609 | if (ret) { | |
41c445ff | 4610 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
4611 | "couldn't get PF vsi ets bw config, err %s aq_err %s\n", |
4612 | i40e_stat_str(&pf->hw, ret), | |
4613 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
dcae29be | 4614 | return -EINVAL; |
41c445ff JB |
4615 | } |
4616 | ||
4617 | if (bw_config.tc_valid_bits != bw_ets_config.tc_valid_bits) { | |
4618 | dev_info(&pf->pdev->dev, | |
4619 | "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n", | |
4620 | bw_config.tc_valid_bits, | |
4621 | bw_ets_config.tc_valid_bits); | |
4622 | /* Still continuing */ | |
4623 | } | |
4624 | ||
4625 | vsi->bw_limit = le16_to_cpu(bw_config.port_bw_limit); | |
4626 | vsi->bw_max_quanta = bw_config.max_bw; | |
4627 | tc_bw_max = le16_to_cpu(bw_ets_config.tc_bw_max[0]) | | |
4628 | (le16_to_cpu(bw_ets_config.tc_bw_max[1]) << 16); | |
4629 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
4630 | vsi->bw_ets_share_credits[i] = bw_ets_config.share_credits[i]; | |
4631 | vsi->bw_ets_limit_credits[i] = | |
4632 | le16_to_cpu(bw_ets_config.credits[i]); | |
4633 | /* 3 bits out of 4 for each TC */ | |
4634 | vsi->bw_ets_max_quanta[i] = (u8)((tc_bw_max >> (i*4)) & 0x7); | |
4635 | } | |
078b5876 | 4636 | |
dcae29be | 4637 | return 0; |
41c445ff JB |
4638 | } |
4639 | ||
4640 | /** | |
4641 | * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC | |
4642 | * @vsi: the VSI being configured | |
4643 | * @enabled_tc: TC bitmap | |
4644 | * @bw_credits: BW shared credits per TC | |
4645 | * | |
4646 | * Returns 0 on success, negative value on failure | |
4647 | **/ | |
dcae29be | 4648 | static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc, |
41c445ff JB |
4649 | u8 *bw_share) |
4650 | { | |
4651 | struct i40e_aqc_configure_vsi_tc_bw_data bw_data; | |
f1c7e72e | 4652 | i40e_status ret; |
dcae29be | 4653 | int i; |
41c445ff JB |
4654 | |
4655 | bw_data.tc_valid_bits = enabled_tc; | |
4656 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) | |
4657 | bw_data.tc_bw_credits[i] = bw_share[i]; | |
4658 | ||
f1c7e72e SN |
4659 | ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid, &bw_data, |
4660 | NULL); | |
4661 | if (ret) { | |
41c445ff | 4662 | dev_info(&vsi->back->pdev->dev, |
69bfb110 JB |
4663 | "AQ command Config VSI BW allocation per TC failed = %d\n", |
4664 | vsi->back->hw.aq.asq_last_status); | |
dcae29be | 4665 | return -EINVAL; |
41c445ff JB |
4666 | } |
4667 | ||
4668 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) | |
4669 | vsi->info.qs_handle[i] = bw_data.qs_handles[i]; | |
4670 | ||
dcae29be | 4671 | return 0; |
41c445ff JB |
4672 | } |
4673 | ||
4674 | /** | |
4675 | * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration | |
4676 | * @vsi: the VSI being configured | |
4677 | * @enabled_tc: TC map to be enabled | |
4678 | * | |
4679 | **/ | |
4680 | static void i40e_vsi_config_netdev_tc(struct i40e_vsi *vsi, u8 enabled_tc) | |
4681 | { | |
4682 | struct net_device *netdev = vsi->netdev; | |
4683 | struct i40e_pf *pf = vsi->back; | |
4684 | struct i40e_hw *hw = &pf->hw; | |
4685 | u8 netdev_tc = 0; | |
4686 | int i; | |
4687 | struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config; | |
4688 | ||
4689 | if (!netdev) | |
4690 | return; | |
4691 | ||
4692 | if (!enabled_tc) { | |
4693 | netdev_reset_tc(netdev); | |
4694 | return; | |
4695 | } | |
4696 | ||
4697 | /* Set up actual enabled TCs on the VSI */ | |
4698 | if (netdev_set_num_tc(netdev, vsi->tc_config.numtc)) | |
4699 | return; | |
4700 | ||
4701 | /* set per TC queues for the VSI */ | |
4702 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
4703 | /* Only set TC queues for enabled tcs | |
4704 | * | |
4705 | * e.g. For a VSI that has TC0 and TC3 enabled the | |
4706 | * enabled_tc bitmap would be 0x00001001; the driver | |
4707 | * will set the numtc for netdev as 2 that will be | |
4708 | * referenced by the netdev layer as TC 0 and 1. | |
4709 | */ | |
41a1d04b | 4710 | if (vsi->tc_config.enabled_tc & BIT_ULL(i)) |
41c445ff JB |
4711 | netdev_set_tc_queue(netdev, |
4712 | vsi->tc_config.tc_info[i].netdev_tc, | |
4713 | vsi->tc_config.tc_info[i].qcount, | |
4714 | vsi->tc_config.tc_info[i].qoffset); | |
4715 | } | |
4716 | ||
4717 | /* Assign UP2TC map for the VSI */ | |
4718 | for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { | |
4719 | /* Get the actual TC# for the UP */ | |
4720 | u8 ets_tc = dcbcfg->etscfg.prioritytable[i]; | |
4721 | /* Get the mapped netdev TC# for the UP */ | |
4722 | netdev_tc = vsi->tc_config.tc_info[ets_tc].netdev_tc; | |
4723 | netdev_set_prio_tc_map(netdev, i, netdev_tc); | |
4724 | } | |
4725 | } | |
4726 | ||
4727 | /** | |
4728 | * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map | |
4729 | * @vsi: the VSI being configured | |
4730 | * @ctxt: the ctxt buffer returned from AQ VSI update param command | |
4731 | **/ | |
4732 | static void i40e_vsi_update_queue_map(struct i40e_vsi *vsi, | |
4733 | struct i40e_vsi_context *ctxt) | |
4734 | { | |
4735 | /* copy just the sections touched not the entire info | |
4736 | * since not all sections are valid as returned by | |
4737 | * update vsi params | |
4738 | */ | |
4739 | vsi->info.mapping_flags = ctxt->info.mapping_flags; | |
4740 | memcpy(&vsi->info.queue_mapping, | |
4741 | &ctxt->info.queue_mapping, sizeof(vsi->info.queue_mapping)); | |
4742 | memcpy(&vsi->info.tc_mapping, ctxt->info.tc_mapping, | |
4743 | sizeof(vsi->info.tc_mapping)); | |
4744 | } | |
4745 | ||
4746 | /** | |
4747 | * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map | |
4748 | * @vsi: VSI to be configured | |
4749 | * @enabled_tc: TC bitmap | |
4750 | * | |
4751 | * This configures a particular VSI for TCs that are mapped to the | |
4752 | * given TC bitmap. It uses default bandwidth share for TCs across | |
4753 | * VSIs to configure TC for a particular VSI. | |
4754 | * | |
4755 | * NOTE: | |
4756 | * It is expected that the VSI queues have been quisced before calling | |
4757 | * this function. | |
4758 | **/ | |
4759 | static int i40e_vsi_config_tc(struct i40e_vsi *vsi, u8 enabled_tc) | |
4760 | { | |
4761 | u8 bw_share[I40E_MAX_TRAFFIC_CLASS] = {0}; | |
4762 | struct i40e_vsi_context ctxt; | |
4763 | int ret = 0; | |
4764 | int i; | |
4765 | ||
4766 | /* Check if enabled_tc is same as existing or new TCs */ | |
4767 | if (vsi->tc_config.enabled_tc == enabled_tc) | |
4768 | return ret; | |
4769 | ||
4770 | /* Enable ETS TCs with equal BW Share for now across all VSIs */ | |
4771 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
41a1d04b | 4772 | if (enabled_tc & BIT_ULL(i)) |
41c445ff JB |
4773 | bw_share[i] = 1; |
4774 | } | |
4775 | ||
4776 | ret = i40e_vsi_configure_bw_alloc(vsi, enabled_tc, bw_share); | |
4777 | if (ret) { | |
4778 | dev_info(&vsi->back->pdev->dev, | |
4779 | "Failed configuring TC map %d for VSI %d\n", | |
4780 | enabled_tc, vsi->seid); | |
4781 | goto out; | |
4782 | } | |
4783 | ||
4784 | /* Update Queue Pairs Mapping for currently enabled UPs */ | |
4785 | ctxt.seid = vsi->seid; | |
4786 | ctxt.pf_num = vsi->back->hw.pf_id; | |
4787 | ctxt.vf_num = 0; | |
4788 | ctxt.uplink_seid = vsi->uplink_seid; | |
1a2f6248 | 4789 | ctxt.info = vsi->info; |
41c445ff JB |
4790 | i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, false); |
4791 | ||
4792 | /* Update the VSI after updating the VSI queue-mapping information */ | |
4793 | ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); | |
4794 | if (ret) { | |
4795 | dev_info(&vsi->back->pdev->dev, | |
f1c7e72e SN |
4796 | "Update vsi tc config failed, err %s aq_err %s\n", |
4797 | i40e_stat_str(&vsi->back->hw, ret), | |
4798 | i40e_aq_str(&vsi->back->hw, | |
4799 | vsi->back->hw.aq.asq_last_status)); | |
41c445ff JB |
4800 | goto out; |
4801 | } | |
4802 | /* update the local VSI info with updated queue map */ | |
4803 | i40e_vsi_update_queue_map(vsi, &ctxt); | |
4804 | vsi->info.valid_sections = 0; | |
4805 | ||
4806 | /* Update current VSI BW information */ | |
4807 | ret = i40e_vsi_get_bw_info(vsi); | |
4808 | if (ret) { | |
4809 | dev_info(&vsi->back->pdev->dev, | |
f1c7e72e SN |
4810 | "Failed updating vsi bw info, err %s aq_err %s\n", |
4811 | i40e_stat_str(&vsi->back->hw, ret), | |
4812 | i40e_aq_str(&vsi->back->hw, | |
4813 | vsi->back->hw.aq.asq_last_status)); | |
41c445ff JB |
4814 | goto out; |
4815 | } | |
4816 | ||
4817 | /* Update the netdev TC setup */ | |
4818 | i40e_vsi_config_netdev_tc(vsi, enabled_tc); | |
4819 | out: | |
4820 | return ret; | |
4821 | } | |
4822 | ||
4e3b35b0 NP |
4823 | /** |
4824 | * i40e_veb_config_tc - Configure TCs for given VEB | |
4825 | * @veb: given VEB | |
4826 | * @enabled_tc: TC bitmap | |
4827 | * | |
4828 | * Configures given TC bitmap for VEB (switching) element | |
4829 | **/ | |
4830 | int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc) | |
4831 | { | |
4832 | struct i40e_aqc_configure_switching_comp_bw_config_data bw_data = {0}; | |
4833 | struct i40e_pf *pf = veb->pf; | |
4834 | int ret = 0; | |
4835 | int i; | |
4836 | ||
4837 | /* No TCs or already enabled TCs just return */ | |
4838 | if (!enabled_tc || veb->enabled_tc == enabled_tc) | |
4839 | return ret; | |
4840 | ||
4841 | bw_data.tc_valid_bits = enabled_tc; | |
4842 | /* bw_data.absolute_credits is not set (relative) */ | |
4843 | ||
4844 | /* Enable ETS TCs with equal BW Share for now */ | |
4845 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
41a1d04b | 4846 | if (enabled_tc & BIT_ULL(i)) |
4e3b35b0 NP |
4847 | bw_data.tc_bw_share_credits[i] = 1; |
4848 | } | |
4849 | ||
4850 | ret = i40e_aq_config_switch_comp_bw_config(&pf->hw, veb->seid, | |
4851 | &bw_data, NULL); | |
4852 | if (ret) { | |
4853 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
4854 | "VEB bw config failed, err %s aq_err %s\n", |
4855 | i40e_stat_str(&pf->hw, ret), | |
4856 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
4e3b35b0 NP |
4857 | goto out; |
4858 | } | |
4859 | ||
4860 | /* Update the BW information */ | |
4861 | ret = i40e_veb_get_bw_info(veb); | |
4862 | if (ret) { | |
4863 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
4864 | "Failed getting veb bw config, err %s aq_err %s\n", |
4865 | i40e_stat_str(&pf->hw, ret), | |
4866 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
4e3b35b0 NP |
4867 | } |
4868 | ||
4869 | out: | |
4870 | return ret; | |
4871 | } | |
4872 | ||
4873 | #ifdef CONFIG_I40E_DCB | |
4874 | /** | |
4875 | * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs | |
4876 | * @pf: PF struct | |
4877 | * | |
4878 | * Reconfigure VEB/VSIs on a given PF; it is assumed that | |
4879 | * the caller would've quiesce all the VSIs before calling | |
4880 | * this function | |
4881 | **/ | |
4882 | static void i40e_dcb_reconfigure(struct i40e_pf *pf) | |
4883 | { | |
4884 | u8 tc_map = 0; | |
4885 | int ret; | |
4886 | u8 v; | |
4887 | ||
4888 | /* Enable the TCs available on PF to all VEBs */ | |
4889 | tc_map = i40e_pf_get_tc_map(pf); | |
4890 | for (v = 0; v < I40E_MAX_VEB; v++) { | |
4891 | if (!pf->veb[v]) | |
4892 | continue; | |
4893 | ret = i40e_veb_config_tc(pf->veb[v], tc_map); | |
4894 | if (ret) { | |
4895 | dev_info(&pf->pdev->dev, | |
4896 | "Failed configuring TC for VEB seid=%d\n", | |
4897 | pf->veb[v]->seid); | |
4898 | /* Will try to configure as many components */ | |
4899 | } | |
4900 | } | |
4901 | ||
4902 | /* Update each VSI */ | |
505682cd | 4903 | for (v = 0; v < pf->num_alloc_vsi; v++) { |
4e3b35b0 NP |
4904 | if (!pf->vsi[v]) |
4905 | continue; | |
4906 | ||
4907 | /* - Enable all TCs for the LAN VSI | |
38e00438 VD |
4908 | #ifdef I40E_FCOE |
4909 | * - For FCoE VSI only enable the TC configured | |
4910 | * as per the APP TLV | |
4911 | #endif | |
4e3b35b0 NP |
4912 | * - For all others keep them at TC0 for now |
4913 | */ | |
4914 | if (v == pf->lan_vsi) | |
4915 | tc_map = i40e_pf_get_tc_map(pf); | |
4916 | else | |
4917 | tc_map = i40e_pf_get_default_tc(pf); | |
38e00438 VD |
4918 | #ifdef I40E_FCOE |
4919 | if (pf->vsi[v]->type == I40E_VSI_FCOE) | |
4920 | tc_map = i40e_get_fcoe_tc_map(pf); | |
4921 | #endif /* #ifdef I40E_FCOE */ | |
4e3b35b0 NP |
4922 | |
4923 | ret = i40e_vsi_config_tc(pf->vsi[v], tc_map); | |
4924 | if (ret) { | |
4925 | dev_info(&pf->pdev->dev, | |
4926 | "Failed configuring TC for VSI seid=%d\n", | |
4927 | pf->vsi[v]->seid); | |
4928 | /* Will try to configure as many components */ | |
4929 | } else { | |
0672a091 NP |
4930 | /* Re-configure VSI vectors based on updated TC map */ |
4931 | i40e_vsi_map_rings_to_vectors(pf->vsi[v]); | |
4e3b35b0 NP |
4932 | if (pf->vsi[v]->netdev) |
4933 | i40e_dcbnl_set_all(pf->vsi[v]); | |
4934 | } | |
4935 | } | |
4936 | } | |
4937 | ||
2fd75f31 NP |
4938 | /** |
4939 | * i40e_resume_port_tx - Resume port Tx | |
4940 | * @pf: PF struct | |
4941 | * | |
4942 | * Resume a port's Tx and issue a PF reset in case of failure to | |
4943 | * resume. | |
4944 | **/ | |
4945 | static int i40e_resume_port_tx(struct i40e_pf *pf) | |
4946 | { | |
4947 | struct i40e_hw *hw = &pf->hw; | |
4948 | int ret; | |
4949 | ||
4950 | ret = i40e_aq_resume_port_tx(hw, NULL); | |
4951 | if (ret) { | |
4952 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
4953 | "Resume Port Tx failed, err %s aq_err %s\n", |
4954 | i40e_stat_str(&pf->hw, ret), | |
4955 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
2fd75f31 NP |
4956 | /* Schedule PF reset to recover */ |
4957 | set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); | |
4958 | i40e_service_event_schedule(pf); | |
4959 | } | |
4960 | ||
4961 | return ret; | |
4962 | } | |
4963 | ||
4e3b35b0 NP |
4964 | /** |
4965 | * i40e_init_pf_dcb - Initialize DCB configuration | |
4966 | * @pf: PF being configured | |
4967 | * | |
4968 | * Query the current DCB configuration and cache it | |
4969 | * in the hardware structure | |
4970 | **/ | |
4971 | static int i40e_init_pf_dcb(struct i40e_pf *pf) | |
4972 | { | |
4973 | struct i40e_hw *hw = &pf->hw; | |
4974 | int err = 0; | |
4975 | ||
025b4a54 ASJ |
4976 | /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */ |
4977 | if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) || | |
4978 | (pf->hw.aq.fw_maj_ver < 4)) | |
4979 | goto out; | |
4980 | ||
4e3b35b0 NP |
4981 | /* Get the initial DCB configuration */ |
4982 | err = i40e_init_dcb(hw); | |
4983 | if (!err) { | |
4984 | /* Device/Function is not DCBX capable */ | |
4985 | if ((!hw->func_caps.dcb) || | |
4986 | (hw->dcbx_status == I40E_DCBX_STATUS_DISABLED)) { | |
4987 | dev_info(&pf->pdev->dev, | |
4988 | "DCBX offload is not supported or is disabled for this PF.\n"); | |
4989 | ||
4990 | if (pf->flags & I40E_FLAG_MFP_ENABLED) | |
4991 | goto out; | |
4992 | ||
4993 | } else { | |
4994 | /* When status is not DISABLED then DCBX in FW */ | |
4995 | pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | | |
4996 | DCB_CAP_DCBX_VER_IEEE; | |
4d9b6043 NP |
4997 | |
4998 | pf->flags |= I40E_FLAG_DCB_CAPABLE; | |
4999 | /* Enable DCB tagging only when more than one TC */ | |
5000 | if (i40e_dcb_get_num_tc(&hw->local_dcbx_config) > 1) | |
5001 | pf->flags |= I40E_FLAG_DCB_ENABLED; | |
9fa61dd2 NP |
5002 | dev_dbg(&pf->pdev->dev, |
5003 | "DCBX offload is supported for this PF.\n"); | |
4e3b35b0 | 5004 | } |
014269ff | 5005 | } else { |
aebfc816 | 5006 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
5007 | "Query for DCB configuration failed, err %s aq_err %s\n", |
5008 | i40e_stat_str(&pf->hw, err), | |
5009 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
4e3b35b0 NP |
5010 | } |
5011 | ||
5012 | out: | |
5013 | return err; | |
5014 | } | |
5015 | #endif /* CONFIG_I40E_DCB */ | |
cf05ed08 JB |
5016 | #define SPEED_SIZE 14 |
5017 | #define FC_SIZE 8 | |
5018 | /** | |
5019 | * i40e_print_link_message - print link up or down | |
5020 | * @vsi: the VSI for which link needs a message | |
5021 | */ | |
c156f856 | 5022 | void i40e_print_link_message(struct i40e_vsi *vsi, bool isup) |
cf05ed08 | 5023 | { |
a9165490 SN |
5024 | char *speed = "Unknown"; |
5025 | char *fc = "Unknown"; | |
cf05ed08 | 5026 | |
c156f856 MJ |
5027 | if (vsi->current_isup == isup) |
5028 | return; | |
5029 | vsi->current_isup = isup; | |
cf05ed08 JB |
5030 | if (!isup) { |
5031 | netdev_info(vsi->netdev, "NIC Link is Down\n"); | |
5032 | return; | |
5033 | } | |
5034 | ||
148c2d80 GR |
5035 | /* Warn user if link speed on NPAR enabled partition is not at |
5036 | * least 10GB | |
5037 | */ | |
5038 | if (vsi->back->hw.func_caps.npar_enable && | |
5039 | (vsi->back->hw.phy.link_info.link_speed == I40E_LINK_SPEED_1GB || | |
5040 | vsi->back->hw.phy.link_info.link_speed == I40E_LINK_SPEED_100MB)) | |
5041 | netdev_warn(vsi->netdev, | |
5042 | "The partition detected link speed that is less than 10Gbps\n"); | |
5043 | ||
cf05ed08 JB |
5044 | switch (vsi->back->hw.phy.link_info.link_speed) { |
5045 | case I40E_LINK_SPEED_40GB: | |
a9165490 | 5046 | speed = "40 G"; |
cf05ed08 | 5047 | break; |
ae24b409 | 5048 | case I40E_LINK_SPEED_20GB: |
a9165490 | 5049 | speed = "20 G"; |
ae24b409 | 5050 | break; |
cf05ed08 | 5051 | case I40E_LINK_SPEED_10GB: |
a9165490 | 5052 | speed = "10 G"; |
cf05ed08 JB |
5053 | break; |
5054 | case I40E_LINK_SPEED_1GB: | |
a9165490 | 5055 | speed = "1000 M"; |
cf05ed08 | 5056 | break; |
5960d33f | 5057 | case I40E_LINK_SPEED_100MB: |
a9165490 | 5058 | speed = "100 M"; |
5960d33f | 5059 | break; |
cf05ed08 JB |
5060 | default: |
5061 | break; | |
5062 | } | |
5063 | ||
5064 | switch (vsi->back->hw.fc.current_mode) { | |
5065 | case I40E_FC_FULL: | |
a9165490 | 5066 | fc = "RX/TX"; |
cf05ed08 JB |
5067 | break; |
5068 | case I40E_FC_TX_PAUSE: | |
a9165490 | 5069 | fc = "TX"; |
cf05ed08 JB |
5070 | break; |
5071 | case I40E_FC_RX_PAUSE: | |
a9165490 | 5072 | fc = "RX"; |
cf05ed08 JB |
5073 | break; |
5074 | default: | |
a9165490 | 5075 | fc = "None"; |
cf05ed08 JB |
5076 | break; |
5077 | } | |
5078 | ||
a9165490 | 5079 | netdev_info(vsi->netdev, "NIC Link is Up %sbps Full Duplex, Flow Control: %s\n", |
cf05ed08 JB |
5080 | speed, fc); |
5081 | } | |
4e3b35b0 | 5082 | |
41c445ff JB |
5083 | /** |
5084 | * i40e_up_complete - Finish the last steps of bringing up a connection | |
5085 | * @vsi: the VSI being configured | |
5086 | **/ | |
5087 | static int i40e_up_complete(struct i40e_vsi *vsi) | |
5088 | { | |
5089 | struct i40e_pf *pf = vsi->back; | |
5090 | int err; | |
5091 | ||
5092 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) | |
5093 | i40e_vsi_configure_msix(vsi); | |
5094 | else | |
5095 | i40e_configure_msi_and_legacy(vsi); | |
5096 | ||
5097 | /* start rings */ | |
5098 | err = i40e_vsi_control_rings(vsi, true); | |
5099 | if (err) | |
5100 | return err; | |
5101 | ||
5102 | clear_bit(__I40E_DOWN, &vsi->state); | |
5103 | i40e_napi_enable_all(vsi); | |
5104 | i40e_vsi_enable_irq(vsi); | |
5105 | ||
5106 | if ((pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP) && | |
5107 | (vsi->netdev)) { | |
cf05ed08 | 5108 | i40e_print_link_message(vsi, true); |
41c445ff JB |
5109 | netif_tx_start_all_queues(vsi->netdev); |
5110 | netif_carrier_on(vsi->netdev); | |
6d779b41 | 5111 | } else if (vsi->netdev) { |
cf05ed08 | 5112 | i40e_print_link_message(vsi, false); |
7b592f61 CW |
5113 | /* need to check for qualified module here*/ |
5114 | if ((pf->hw.phy.link_info.link_info & | |
5115 | I40E_AQ_MEDIA_AVAILABLE) && | |
5116 | (!(pf->hw.phy.link_info.an_info & | |
5117 | I40E_AQ_QUALIFIED_MODULE))) | |
5118 | netdev_err(vsi->netdev, | |
5119 | "the driver failed to link because an unqualified module was detected."); | |
41c445ff | 5120 | } |
ca64fa4e ASJ |
5121 | |
5122 | /* replay FDIR SB filters */ | |
1e1be8f6 ASJ |
5123 | if (vsi->type == I40E_VSI_FDIR) { |
5124 | /* reset fd counters */ | |
5125 | pf->fd_add_err = pf->fd_atr_cnt = 0; | |
5126 | if (pf->fd_tcp_rule > 0) { | |
5127 | pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED; | |
2e4875e3 ASJ |
5128 | if (I40E_DEBUG_FD & pf->hw.debug_mask) |
5129 | dev_info(&pf->pdev->dev, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n"); | |
1e1be8f6 ASJ |
5130 | pf->fd_tcp_rule = 0; |
5131 | } | |
ca64fa4e | 5132 | i40e_fdir_filter_restore(vsi); |
1e1be8f6 | 5133 | } |
41c445ff JB |
5134 | i40e_service_event_schedule(pf); |
5135 | ||
5136 | return 0; | |
5137 | } | |
5138 | ||
5139 | /** | |
5140 | * i40e_vsi_reinit_locked - Reset the VSI | |
5141 | * @vsi: the VSI being configured | |
5142 | * | |
5143 | * Rebuild the ring structs after some configuration | |
5144 | * has changed, e.g. MTU size. | |
5145 | **/ | |
5146 | static void i40e_vsi_reinit_locked(struct i40e_vsi *vsi) | |
5147 | { | |
5148 | struct i40e_pf *pf = vsi->back; | |
5149 | ||
5150 | WARN_ON(in_interrupt()); | |
5151 | while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) | |
5152 | usleep_range(1000, 2000); | |
5153 | i40e_down(vsi); | |
5154 | ||
5155 | /* Give a VF some time to respond to the reset. The | |
5156 | * two second wait is based upon the watchdog cycle in | |
5157 | * the VF driver. | |
5158 | */ | |
5159 | if (vsi->type == I40E_VSI_SRIOV) | |
5160 | msleep(2000); | |
5161 | i40e_up(vsi); | |
5162 | clear_bit(__I40E_CONFIG_BUSY, &pf->state); | |
5163 | } | |
5164 | ||
5165 | /** | |
5166 | * i40e_up - Bring the connection back up after being down | |
5167 | * @vsi: the VSI being configured | |
5168 | **/ | |
5169 | int i40e_up(struct i40e_vsi *vsi) | |
5170 | { | |
5171 | int err; | |
5172 | ||
5173 | err = i40e_vsi_configure(vsi); | |
5174 | if (!err) | |
5175 | err = i40e_up_complete(vsi); | |
5176 | ||
5177 | return err; | |
5178 | } | |
5179 | ||
5180 | /** | |
5181 | * i40e_down - Shutdown the connection processing | |
5182 | * @vsi: the VSI being stopped | |
5183 | **/ | |
5184 | void i40e_down(struct i40e_vsi *vsi) | |
5185 | { | |
5186 | int i; | |
5187 | ||
5188 | /* It is assumed that the caller of this function | |
5189 | * sets the vsi->state __I40E_DOWN bit. | |
5190 | */ | |
5191 | if (vsi->netdev) { | |
5192 | netif_carrier_off(vsi->netdev); | |
5193 | netif_tx_disable(vsi->netdev); | |
5194 | } | |
5195 | i40e_vsi_disable_irq(vsi); | |
5196 | i40e_vsi_control_rings(vsi, false); | |
5197 | i40e_napi_disable_all(vsi); | |
5198 | ||
5199 | for (i = 0; i < vsi->num_queue_pairs; i++) { | |
9f65e15b AD |
5200 | i40e_clean_tx_ring(vsi->tx_rings[i]); |
5201 | i40e_clean_rx_ring(vsi->rx_rings[i]); | |
41c445ff JB |
5202 | } |
5203 | } | |
5204 | ||
5205 | /** | |
5206 | * i40e_setup_tc - configure multiple traffic classes | |
5207 | * @netdev: net device to configure | |
5208 | * @tc: number of traffic classes to enable | |
5209 | **/ | |
38e00438 VD |
5210 | #ifdef I40E_FCOE |
5211 | int i40e_setup_tc(struct net_device *netdev, u8 tc) | |
5212 | #else | |
41c445ff | 5213 | static int i40e_setup_tc(struct net_device *netdev, u8 tc) |
38e00438 | 5214 | #endif |
41c445ff JB |
5215 | { |
5216 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
5217 | struct i40e_vsi *vsi = np->vsi; | |
5218 | struct i40e_pf *pf = vsi->back; | |
5219 | u8 enabled_tc = 0; | |
5220 | int ret = -EINVAL; | |
5221 | int i; | |
5222 | ||
5223 | /* Check if DCB enabled to continue */ | |
5224 | if (!(pf->flags & I40E_FLAG_DCB_ENABLED)) { | |
5225 | netdev_info(netdev, "DCB is not enabled for adapter\n"); | |
5226 | goto exit; | |
5227 | } | |
5228 | ||
5229 | /* Check if MFP enabled */ | |
5230 | if (pf->flags & I40E_FLAG_MFP_ENABLED) { | |
5231 | netdev_info(netdev, "Configuring TC not supported in MFP mode\n"); | |
5232 | goto exit; | |
5233 | } | |
5234 | ||
5235 | /* Check whether tc count is within enabled limit */ | |
5236 | if (tc > i40e_pf_get_num_tc(pf)) { | |
5237 | netdev_info(netdev, "TC count greater than enabled on link for adapter\n"); | |
5238 | goto exit; | |
5239 | } | |
5240 | ||
5241 | /* Generate TC map for number of tc requested */ | |
5242 | for (i = 0; i < tc; i++) | |
41a1d04b | 5243 | enabled_tc |= BIT_ULL(i); |
41c445ff JB |
5244 | |
5245 | /* Requesting same TC configuration as already enabled */ | |
5246 | if (enabled_tc == vsi->tc_config.enabled_tc) | |
5247 | return 0; | |
5248 | ||
5249 | /* Quiesce VSI queues */ | |
5250 | i40e_quiesce_vsi(vsi); | |
5251 | ||
5252 | /* Configure VSI for enabled TCs */ | |
5253 | ret = i40e_vsi_config_tc(vsi, enabled_tc); | |
5254 | if (ret) { | |
5255 | netdev_info(netdev, "Failed configuring TC for VSI seid=%d\n", | |
5256 | vsi->seid); | |
5257 | goto exit; | |
5258 | } | |
5259 | ||
5260 | /* Unquiesce VSI */ | |
5261 | i40e_unquiesce_vsi(vsi); | |
5262 | ||
5263 | exit: | |
5264 | return ret; | |
5265 | } | |
5266 | ||
5267 | /** | |
5268 | * i40e_open - Called when a network interface is made active | |
5269 | * @netdev: network interface device structure | |
5270 | * | |
5271 | * The open entry point is called when a network interface is made | |
5272 | * active by the system (IFF_UP). At this point all resources needed | |
5273 | * for transmit and receive operations are allocated, the interrupt | |
5274 | * handler is registered with the OS, the netdev watchdog subtask is | |
5275 | * enabled, and the stack is notified that the interface is ready. | |
5276 | * | |
5277 | * Returns 0 on success, negative value on failure | |
5278 | **/ | |
38e00438 | 5279 | int i40e_open(struct net_device *netdev) |
41c445ff JB |
5280 | { |
5281 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
5282 | struct i40e_vsi *vsi = np->vsi; | |
5283 | struct i40e_pf *pf = vsi->back; | |
41c445ff JB |
5284 | int err; |
5285 | ||
4eb3f768 SN |
5286 | /* disallow open during test or if eeprom is broken */ |
5287 | if (test_bit(__I40E_TESTING, &pf->state) || | |
5288 | test_bit(__I40E_BAD_EEPROM, &pf->state)) | |
41c445ff JB |
5289 | return -EBUSY; |
5290 | ||
5291 | netif_carrier_off(netdev); | |
5292 | ||
6c167f58 EK |
5293 | err = i40e_vsi_open(vsi); |
5294 | if (err) | |
5295 | return err; | |
5296 | ||
059dab69 JB |
5297 | /* configure global TSO hardware offload settings */ |
5298 | wr32(&pf->hw, I40E_GLLAN_TSOMSK_F, be32_to_cpu(TCP_FLAG_PSH | | |
5299 | TCP_FLAG_FIN) >> 16); | |
5300 | wr32(&pf->hw, I40E_GLLAN_TSOMSK_M, be32_to_cpu(TCP_FLAG_PSH | | |
5301 | TCP_FLAG_FIN | | |
5302 | TCP_FLAG_CWR) >> 16); | |
5303 | wr32(&pf->hw, I40E_GLLAN_TSOMSK_L, be32_to_cpu(TCP_FLAG_CWR) >> 16); | |
5304 | ||
6c167f58 EK |
5305 | #ifdef CONFIG_I40E_VXLAN |
5306 | vxlan_get_rx_port(netdev); | |
5307 | #endif | |
5308 | ||
5309 | return 0; | |
5310 | } | |
5311 | ||
5312 | /** | |
5313 | * i40e_vsi_open - | |
5314 | * @vsi: the VSI to open | |
5315 | * | |
5316 | * Finish initialization of the VSI. | |
5317 | * | |
5318 | * Returns 0 on success, negative value on failure | |
5319 | **/ | |
5320 | int i40e_vsi_open(struct i40e_vsi *vsi) | |
5321 | { | |
5322 | struct i40e_pf *pf = vsi->back; | |
b294ac70 | 5323 | char int_name[I40E_INT_NAME_STR_LEN]; |
6c167f58 EK |
5324 | int err; |
5325 | ||
41c445ff JB |
5326 | /* allocate descriptors */ |
5327 | err = i40e_vsi_setup_tx_resources(vsi); | |
5328 | if (err) | |
5329 | goto err_setup_tx; | |
5330 | err = i40e_vsi_setup_rx_resources(vsi); | |
5331 | if (err) | |
5332 | goto err_setup_rx; | |
5333 | ||
5334 | err = i40e_vsi_configure(vsi); | |
5335 | if (err) | |
5336 | goto err_setup_rx; | |
5337 | ||
c22e3c6c SN |
5338 | if (vsi->netdev) { |
5339 | snprintf(int_name, sizeof(int_name) - 1, "%s-%s", | |
5340 | dev_driver_string(&pf->pdev->dev), vsi->netdev->name); | |
5341 | err = i40e_vsi_request_irq(vsi, int_name); | |
5342 | if (err) | |
5343 | goto err_setup_rx; | |
41c445ff | 5344 | |
c22e3c6c SN |
5345 | /* Notify the stack of the actual queue counts. */ |
5346 | err = netif_set_real_num_tx_queues(vsi->netdev, | |
5347 | vsi->num_queue_pairs); | |
5348 | if (err) | |
5349 | goto err_set_queues; | |
25946ddb | 5350 | |
c22e3c6c SN |
5351 | err = netif_set_real_num_rx_queues(vsi->netdev, |
5352 | vsi->num_queue_pairs); | |
5353 | if (err) | |
5354 | goto err_set_queues; | |
8a9eb7d3 SN |
5355 | |
5356 | } else if (vsi->type == I40E_VSI_FDIR) { | |
e240f674 | 5357 | snprintf(int_name, sizeof(int_name) - 1, "%s-%s:fdir", |
b2008cbf CW |
5358 | dev_driver_string(&pf->pdev->dev), |
5359 | dev_name(&pf->pdev->dev)); | |
8a9eb7d3 | 5360 | err = i40e_vsi_request_irq(vsi, int_name); |
b2008cbf | 5361 | |
c22e3c6c | 5362 | } else { |
ce9ccb17 | 5363 | err = -EINVAL; |
6c167f58 EK |
5364 | goto err_setup_rx; |
5365 | } | |
25946ddb | 5366 | |
41c445ff JB |
5367 | err = i40e_up_complete(vsi); |
5368 | if (err) | |
5369 | goto err_up_complete; | |
5370 | ||
41c445ff JB |
5371 | return 0; |
5372 | ||
5373 | err_up_complete: | |
5374 | i40e_down(vsi); | |
25946ddb | 5375 | err_set_queues: |
41c445ff JB |
5376 | i40e_vsi_free_irq(vsi); |
5377 | err_setup_rx: | |
5378 | i40e_vsi_free_rx_resources(vsi); | |
5379 | err_setup_tx: | |
5380 | i40e_vsi_free_tx_resources(vsi); | |
5381 | if (vsi == pf->vsi[pf->lan_vsi]) | |
41a1d04b | 5382 | i40e_do_reset(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); |
41c445ff JB |
5383 | |
5384 | return err; | |
5385 | } | |
5386 | ||
17a73f6b JG |
5387 | /** |
5388 | * i40e_fdir_filter_exit - Cleans up the Flow Director accounting | |
b40c82e6 | 5389 | * @pf: Pointer to PF |
17a73f6b JG |
5390 | * |
5391 | * This function destroys the hlist where all the Flow Director | |
5392 | * filters were saved. | |
5393 | **/ | |
5394 | static void i40e_fdir_filter_exit(struct i40e_pf *pf) | |
5395 | { | |
5396 | struct i40e_fdir_filter *filter; | |
5397 | struct hlist_node *node2; | |
5398 | ||
5399 | hlist_for_each_entry_safe(filter, node2, | |
5400 | &pf->fdir_filter_list, fdir_node) { | |
5401 | hlist_del(&filter->fdir_node); | |
5402 | kfree(filter); | |
5403 | } | |
5404 | pf->fdir_pf_active_filters = 0; | |
5405 | } | |
5406 | ||
41c445ff JB |
5407 | /** |
5408 | * i40e_close - Disables a network interface | |
5409 | * @netdev: network interface device structure | |
5410 | * | |
5411 | * The close entry point is called when an interface is de-activated | |
5412 | * by the OS. The hardware is still under the driver's control, but | |
5413 | * this netdev interface is disabled. | |
5414 | * | |
5415 | * Returns 0, this is not allowed to fail | |
5416 | **/ | |
38e00438 VD |
5417 | #ifdef I40E_FCOE |
5418 | int i40e_close(struct net_device *netdev) | |
5419 | #else | |
41c445ff | 5420 | static int i40e_close(struct net_device *netdev) |
38e00438 | 5421 | #endif |
41c445ff JB |
5422 | { |
5423 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
5424 | struct i40e_vsi *vsi = np->vsi; | |
5425 | ||
90ef8d47 | 5426 | i40e_vsi_close(vsi); |
41c445ff JB |
5427 | |
5428 | return 0; | |
5429 | } | |
5430 | ||
5431 | /** | |
5432 | * i40e_do_reset - Start a PF or Core Reset sequence | |
5433 | * @pf: board private structure | |
5434 | * @reset_flags: which reset is requested | |
5435 | * | |
5436 | * The essential difference in resets is that the PF Reset | |
5437 | * doesn't clear the packet buffers, doesn't reset the PE | |
5438 | * firmware, and doesn't bother the other PFs on the chip. | |
5439 | **/ | |
5440 | void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags) | |
5441 | { | |
5442 | u32 val; | |
5443 | ||
5444 | WARN_ON(in_interrupt()); | |
5445 | ||
263fc48f MW |
5446 | if (i40e_check_asq_alive(&pf->hw)) |
5447 | i40e_vc_notify_reset(pf); | |
5448 | ||
41c445ff | 5449 | /* do the biggest reset indicated */ |
41a1d04b | 5450 | if (reset_flags & BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED)) { |
41c445ff JB |
5451 | |
5452 | /* Request a Global Reset | |
5453 | * | |
5454 | * This will start the chip's countdown to the actual full | |
5455 | * chip reset event, and a warning interrupt to be sent | |
5456 | * to all PFs, including the requestor. Our handler | |
5457 | * for the warning interrupt will deal with the shutdown | |
5458 | * and recovery of the switch setup. | |
5459 | */ | |
69bfb110 | 5460 | dev_dbg(&pf->pdev->dev, "GlobalR requested\n"); |
41c445ff JB |
5461 | val = rd32(&pf->hw, I40E_GLGEN_RTRIG); |
5462 | val |= I40E_GLGEN_RTRIG_GLOBR_MASK; | |
5463 | wr32(&pf->hw, I40E_GLGEN_RTRIG, val); | |
5464 | ||
41a1d04b | 5465 | } else if (reset_flags & BIT_ULL(__I40E_CORE_RESET_REQUESTED)) { |
41c445ff JB |
5466 | |
5467 | /* Request a Core Reset | |
5468 | * | |
5469 | * Same as Global Reset, except does *not* include the MAC/PHY | |
5470 | */ | |
69bfb110 | 5471 | dev_dbg(&pf->pdev->dev, "CoreR requested\n"); |
41c445ff JB |
5472 | val = rd32(&pf->hw, I40E_GLGEN_RTRIG); |
5473 | val |= I40E_GLGEN_RTRIG_CORER_MASK; | |
5474 | wr32(&pf->hw, I40E_GLGEN_RTRIG, val); | |
5475 | i40e_flush(&pf->hw); | |
5476 | ||
41a1d04b | 5477 | } else if (reset_flags & BIT_ULL(__I40E_PF_RESET_REQUESTED)) { |
41c445ff JB |
5478 | |
5479 | /* Request a PF Reset | |
5480 | * | |
5481 | * Resets only the PF-specific registers | |
5482 | * | |
5483 | * This goes directly to the tear-down and rebuild of | |
5484 | * the switch, since we need to do all the recovery as | |
5485 | * for the Core Reset. | |
5486 | */ | |
69bfb110 | 5487 | dev_dbg(&pf->pdev->dev, "PFR requested\n"); |
41c445ff JB |
5488 | i40e_handle_reset_warning(pf); |
5489 | ||
41a1d04b | 5490 | } else if (reset_flags & BIT_ULL(__I40E_REINIT_REQUESTED)) { |
41c445ff JB |
5491 | int v; |
5492 | ||
5493 | /* Find the VSI(s) that requested a re-init */ | |
5494 | dev_info(&pf->pdev->dev, | |
5495 | "VSI reinit requested\n"); | |
505682cd | 5496 | for (v = 0; v < pf->num_alloc_vsi; v++) { |
41c445ff | 5497 | struct i40e_vsi *vsi = pf->vsi[v]; |
6995b36c | 5498 | |
41c445ff JB |
5499 | if (vsi != NULL && |
5500 | test_bit(__I40E_REINIT_REQUESTED, &vsi->state)) { | |
5501 | i40e_vsi_reinit_locked(pf->vsi[v]); | |
5502 | clear_bit(__I40E_REINIT_REQUESTED, &vsi->state); | |
5503 | } | |
5504 | } | |
41a1d04b | 5505 | } else if (reset_flags & BIT_ULL(__I40E_DOWN_REQUESTED)) { |
b5d06f05 NP |
5506 | int v; |
5507 | ||
5508 | /* Find the VSI(s) that needs to be brought down */ | |
5509 | dev_info(&pf->pdev->dev, "VSI down requested\n"); | |
5510 | for (v = 0; v < pf->num_alloc_vsi; v++) { | |
5511 | struct i40e_vsi *vsi = pf->vsi[v]; | |
6995b36c | 5512 | |
b5d06f05 NP |
5513 | if (vsi != NULL && |
5514 | test_bit(__I40E_DOWN_REQUESTED, &vsi->state)) { | |
5515 | set_bit(__I40E_DOWN, &vsi->state); | |
5516 | i40e_down(vsi); | |
5517 | clear_bit(__I40E_DOWN_REQUESTED, &vsi->state); | |
5518 | } | |
5519 | } | |
41c445ff JB |
5520 | } else { |
5521 | dev_info(&pf->pdev->dev, | |
5522 | "bad reset request 0x%08x\n", reset_flags); | |
41c445ff JB |
5523 | } |
5524 | } | |
5525 | ||
4e3b35b0 NP |
5526 | #ifdef CONFIG_I40E_DCB |
5527 | /** | |
5528 | * i40e_dcb_need_reconfig - Check if DCB needs reconfig | |
5529 | * @pf: board private structure | |
5530 | * @old_cfg: current DCB config | |
5531 | * @new_cfg: new DCB config | |
5532 | **/ | |
5533 | bool i40e_dcb_need_reconfig(struct i40e_pf *pf, | |
5534 | struct i40e_dcbx_config *old_cfg, | |
5535 | struct i40e_dcbx_config *new_cfg) | |
5536 | { | |
5537 | bool need_reconfig = false; | |
5538 | ||
5539 | /* Check if ETS configuration has changed */ | |
5540 | if (memcmp(&new_cfg->etscfg, | |
5541 | &old_cfg->etscfg, | |
5542 | sizeof(new_cfg->etscfg))) { | |
5543 | /* If Priority Table has changed reconfig is needed */ | |
5544 | if (memcmp(&new_cfg->etscfg.prioritytable, | |
5545 | &old_cfg->etscfg.prioritytable, | |
5546 | sizeof(new_cfg->etscfg.prioritytable))) { | |
5547 | need_reconfig = true; | |
69bfb110 | 5548 | dev_dbg(&pf->pdev->dev, "ETS UP2TC changed.\n"); |
4e3b35b0 NP |
5549 | } |
5550 | ||
5551 | if (memcmp(&new_cfg->etscfg.tcbwtable, | |
5552 | &old_cfg->etscfg.tcbwtable, | |
5553 | sizeof(new_cfg->etscfg.tcbwtable))) | |
69bfb110 | 5554 | dev_dbg(&pf->pdev->dev, "ETS TC BW Table changed.\n"); |
4e3b35b0 NP |
5555 | |
5556 | if (memcmp(&new_cfg->etscfg.tsatable, | |
5557 | &old_cfg->etscfg.tsatable, | |
5558 | sizeof(new_cfg->etscfg.tsatable))) | |
69bfb110 | 5559 | dev_dbg(&pf->pdev->dev, "ETS TSA Table changed.\n"); |
4e3b35b0 NP |
5560 | } |
5561 | ||
5562 | /* Check if PFC configuration has changed */ | |
5563 | if (memcmp(&new_cfg->pfc, | |
5564 | &old_cfg->pfc, | |
5565 | sizeof(new_cfg->pfc))) { | |
5566 | need_reconfig = true; | |
69bfb110 | 5567 | dev_dbg(&pf->pdev->dev, "PFC config change detected.\n"); |
4e3b35b0 NP |
5568 | } |
5569 | ||
5570 | /* Check if APP Table has changed */ | |
5571 | if (memcmp(&new_cfg->app, | |
5572 | &old_cfg->app, | |
3d9667a9 | 5573 | sizeof(new_cfg->app))) { |
4e3b35b0 | 5574 | need_reconfig = true; |
69bfb110 | 5575 | dev_dbg(&pf->pdev->dev, "APP Table change detected.\n"); |
3d9667a9 | 5576 | } |
4e3b35b0 | 5577 | |
fb43201f | 5578 | dev_dbg(&pf->pdev->dev, "dcb need_reconfig=%d\n", need_reconfig); |
4e3b35b0 NP |
5579 | return need_reconfig; |
5580 | } | |
5581 | ||
5582 | /** | |
5583 | * i40e_handle_lldp_event - Handle LLDP Change MIB event | |
5584 | * @pf: board private structure | |
5585 | * @e: event info posted on ARQ | |
5586 | **/ | |
5587 | static int i40e_handle_lldp_event(struct i40e_pf *pf, | |
5588 | struct i40e_arq_event_info *e) | |
5589 | { | |
5590 | struct i40e_aqc_lldp_get_mib *mib = | |
5591 | (struct i40e_aqc_lldp_get_mib *)&e->desc.params.raw; | |
5592 | struct i40e_hw *hw = &pf->hw; | |
4e3b35b0 NP |
5593 | struct i40e_dcbx_config tmp_dcbx_cfg; |
5594 | bool need_reconfig = false; | |
5595 | int ret = 0; | |
5596 | u8 type; | |
5597 | ||
4d9b6043 NP |
5598 | /* Not DCB capable or capability disabled */ |
5599 | if (!(pf->flags & I40E_FLAG_DCB_CAPABLE)) | |
5600 | return ret; | |
5601 | ||
4e3b35b0 NP |
5602 | /* Ignore if event is not for Nearest Bridge */ |
5603 | type = ((mib->type >> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT) | |
5604 | & I40E_AQ_LLDP_BRIDGE_TYPE_MASK); | |
fb43201f | 5605 | dev_dbg(&pf->pdev->dev, "LLDP event mib bridge type 0x%x\n", type); |
4e3b35b0 NP |
5606 | if (type != I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE) |
5607 | return ret; | |
5608 | ||
5609 | /* Check MIB Type and return if event for Remote MIB update */ | |
5610 | type = mib->type & I40E_AQ_LLDP_MIB_TYPE_MASK; | |
9fa61dd2 | 5611 | dev_dbg(&pf->pdev->dev, |
fb43201f | 5612 | "LLDP event mib type %s\n", type ? "remote" : "local"); |
4e3b35b0 NP |
5613 | if (type == I40E_AQ_LLDP_MIB_REMOTE) { |
5614 | /* Update the remote cached instance and return */ | |
5615 | ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE, | |
5616 | I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, | |
5617 | &hw->remote_dcbx_config); | |
5618 | goto exit; | |
5619 | } | |
5620 | ||
9fa61dd2 | 5621 | /* Store the old configuration */ |
1a2f6248 | 5622 | tmp_dcbx_cfg = hw->local_dcbx_config; |
9fa61dd2 | 5623 | |
750fcbcf NP |
5624 | /* Reset the old DCBx configuration data */ |
5625 | memset(&hw->local_dcbx_config, 0, sizeof(hw->local_dcbx_config)); | |
9fa61dd2 NP |
5626 | /* Get updated DCBX data from firmware */ |
5627 | ret = i40e_get_dcb_config(&pf->hw); | |
4e3b35b0 | 5628 | if (ret) { |
f1c7e72e SN |
5629 | dev_info(&pf->pdev->dev, |
5630 | "Failed querying DCB configuration data from firmware, err %s aq_err %s\n", | |
5631 | i40e_stat_str(&pf->hw, ret), | |
5632 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
4e3b35b0 NP |
5633 | goto exit; |
5634 | } | |
5635 | ||
5636 | /* No change detected in DCBX configs */ | |
750fcbcf NP |
5637 | if (!memcmp(&tmp_dcbx_cfg, &hw->local_dcbx_config, |
5638 | sizeof(tmp_dcbx_cfg))) { | |
69bfb110 | 5639 | dev_dbg(&pf->pdev->dev, "No change detected in DCBX configuration.\n"); |
4e3b35b0 NP |
5640 | goto exit; |
5641 | } | |
5642 | ||
750fcbcf NP |
5643 | need_reconfig = i40e_dcb_need_reconfig(pf, &tmp_dcbx_cfg, |
5644 | &hw->local_dcbx_config); | |
4e3b35b0 | 5645 | |
750fcbcf | 5646 | i40e_dcbnl_flush_apps(pf, &tmp_dcbx_cfg, &hw->local_dcbx_config); |
4e3b35b0 NP |
5647 | |
5648 | if (!need_reconfig) | |
5649 | goto exit; | |
5650 | ||
4d9b6043 | 5651 | /* Enable DCB tagging only when more than one TC */ |
750fcbcf | 5652 | if (i40e_dcb_get_num_tc(&hw->local_dcbx_config) > 1) |
4d9b6043 NP |
5653 | pf->flags |= I40E_FLAG_DCB_ENABLED; |
5654 | else | |
5655 | pf->flags &= ~I40E_FLAG_DCB_ENABLED; | |
5656 | ||
69129dc3 | 5657 | set_bit(__I40E_PORT_TX_SUSPENDED, &pf->state); |
4e3b35b0 NP |
5658 | /* Reconfiguration needed quiesce all VSIs */ |
5659 | i40e_pf_quiesce_all_vsi(pf); | |
5660 | ||
5661 | /* Changes in configuration update VEB/VSI */ | |
5662 | i40e_dcb_reconfigure(pf); | |
5663 | ||
2fd75f31 NP |
5664 | ret = i40e_resume_port_tx(pf); |
5665 | ||
69129dc3 | 5666 | clear_bit(__I40E_PORT_TX_SUSPENDED, &pf->state); |
2fd75f31 | 5667 | /* In case of error no point in resuming VSIs */ |
69129dc3 NP |
5668 | if (ret) |
5669 | goto exit; | |
5670 | ||
5671 | /* Wait for the PF's Tx queues to be disabled */ | |
5672 | ret = i40e_pf_wait_txq_disabled(pf); | |
11e47708 PN |
5673 | if (ret) { |
5674 | /* Schedule PF reset to recover */ | |
5675 | set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); | |
5676 | i40e_service_event_schedule(pf); | |
5677 | } else { | |
2fd75f31 | 5678 | i40e_pf_unquiesce_all_vsi(pf); |
11e47708 PN |
5679 | } |
5680 | ||
4e3b35b0 NP |
5681 | exit: |
5682 | return ret; | |
5683 | } | |
5684 | #endif /* CONFIG_I40E_DCB */ | |
5685 | ||
23326186 ASJ |
5686 | /** |
5687 | * i40e_do_reset_safe - Protected reset path for userland calls. | |
5688 | * @pf: board private structure | |
5689 | * @reset_flags: which reset is requested | |
5690 | * | |
5691 | **/ | |
5692 | void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags) | |
5693 | { | |
5694 | rtnl_lock(); | |
5695 | i40e_do_reset(pf, reset_flags); | |
5696 | rtnl_unlock(); | |
5697 | } | |
5698 | ||
41c445ff JB |
5699 | /** |
5700 | * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event | |
5701 | * @pf: board private structure | |
5702 | * @e: event info posted on ARQ | |
5703 | * | |
5704 | * Handler for LAN Queue Overflow Event generated by the firmware for PF | |
5705 | * and VF queues | |
5706 | **/ | |
5707 | static void i40e_handle_lan_overflow_event(struct i40e_pf *pf, | |
5708 | struct i40e_arq_event_info *e) | |
5709 | { | |
5710 | struct i40e_aqc_lan_overflow *data = | |
5711 | (struct i40e_aqc_lan_overflow *)&e->desc.params.raw; | |
5712 | u32 queue = le32_to_cpu(data->prtdcb_rupto); | |
5713 | u32 qtx_ctl = le32_to_cpu(data->otx_ctl); | |
5714 | struct i40e_hw *hw = &pf->hw; | |
5715 | struct i40e_vf *vf; | |
5716 | u16 vf_id; | |
5717 | ||
69bfb110 JB |
5718 | dev_dbg(&pf->pdev->dev, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n", |
5719 | queue, qtx_ctl); | |
41c445ff JB |
5720 | |
5721 | /* Queue belongs to VF, find the VF and issue VF reset */ | |
5722 | if (((qtx_ctl & I40E_QTX_CTL_PFVF_Q_MASK) | |
5723 | >> I40E_QTX_CTL_PFVF_Q_SHIFT) == I40E_QTX_CTL_VF_QUEUE) { | |
5724 | vf_id = (u16)((qtx_ctl & I40E_QTX_CTL_VFVM_INDX_MASK) | |
5725 | >> I40E_QTX_CTL_VFVM_INDX_SHIFT); | |
5726 | vf_id -= hw->func_caps.vf_base_id; | |
5727 | vf = &pf->vf[vf_id]; | |
5728 | i40e_vc_notify_vf_reset(vf); | |
5729 | /* Allow VF to process pending reset notification */ | |
5730 | msleep(20); | |
5731 | i40e_reset_vf(vf, false); | |
5732 | } | |
5733 | } | |
5734 | ||
5735 | /** | |
5736 | * i40e_service_event_complete - Finish up the service event | |
5737 | * @pf: board private structure | |
5738 | **/ | |
5739 | static void i40e_service_event_complete(struct i40e_pf *pf) | |
5740 | { | |
5741 | BUG_ON(!test_bit(__I40E_SERVICE_SCHED, &pf->state)); | |
5742 | ||
5743 | /* flush memory to make sure state is correct before next watchog */ | |
4e857c58 | 5744 | smp_mb__before_atomic(); |
41c445ff JB |
5745 | clear_bit(__I40E_SERVICE_SCHED, &pf->state); |
5746 | } | |
5747 | ||
55a5e60b | 5748 | /** |
12957388 ASJ |
5749 | * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters |
5750 | * @pf: board private structure | |
5751 | **/ | |
04294e38 | 5752 | u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf) |
12957388 | 5753 | { |
04294e38 | 5754 | u32 val, fcnt_prog; |
12957388 ASJ |
5755 | |
5756 | val = rd32(&pf->hw, I40E_PFQF_FDSTAT); | |
5757 | fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK); | |
5758 | return fcnt_prog; | |
5759 | } | |
5760 | ||
5761 | /** | |
04294e38 | 5762 | * i40e_get_current_fd_count - Get total FD filters programmed for this PF |
55a5e60b ASJ |
5763 | * @pf: board private structure |
5764 | **/ | |
04294e38 | 5765 | u32 i40e_get_current_fd_count(struct i40e_pf *pf) |
55a5e60b | 5766 | { |
04294e38 ASJ |
5767 | u32 val, fcnt_prog; |
5768 | ||
55a5e60b ASJ |
5769 | val = rd32(&pf->hw, I40E_PFQF_FDSTAT); |
5770 | fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) + | |
5771 | ((val & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >> | |
5772 | I40E_PFQF_FDSTAT_BEST_CNT_SHIFT); | |
5773 | return fcnt_prog; | |
5774 | } | |
1e1be8f6 | 5775 | |
04294e38 ASJ |
5776 | /** |
5777 | * i40e_get_global_fd_count - Get total FD filters programmed on device | |
5778 | * @pf: board private structure | |
5779 | **/ | |
5780 | u32 i40e_get_global_fd_count(struct i40e_pf *pf) | |
5781 | { | |
5782 | u32 val, fcnt_prog; | |
5783 | ||
5784 | val = rd32(&pf->hw, I40E_GLQF_FDCNT_0); | |
5785 | fcnt_prog = (val & I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK) + | |
5786 | ((val & I40E_GLQF_FDCNT_0_BESTCNT_MASK) >> | |
5787 | I40E_GLQF_FDCNT_0_BESTCNT_SHIFT); | |
5788 | return fcnt_prog; | |
5789 | } | |
5790 | ||
55a5e60b ASJ |
5791 | /** |
5792 | * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled | |
5793 | * @pf: board private structure | |
5794 | **/ | |
5795 | void i40e_fdir_check_and_reenable(struct i40e_pf *pf) | |
5796 | { | |
3487b6c3 | 5797 | struct i40e_fdir_filter *filter; |
55a5e60b | 5798 | u32 fcnt_prog, fcnt_avail; |
3487b6c3 | 5799 | struct hlist_node *node; |
55a5e60b | 5800 | |
1e1be8f6 ASJ |
5801 | if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) |
5802 | return; | |
5803 | ||
55a5e60b ASJ |
5804 | /* Check if, FD SB or ATR was auto disabled and if there is enough room |
5805 | * to re-enable | |
5806 | */ | |
04294e38 | 5807 | fcnt_prog = i40e_get_global_fd_count(pf); |
12957388 | 5808 | fcnt_avail = pf->fdir_pf_filter_count; |
1e1be8f6 ASJ |
5809 | if ((fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM)) || |
5810 | (pf->fd_add_err == 0) || | |
5811 | (i40e_get_current_atr_cnt(pf) < pf->fd_atr_cnt)) { | |
55a5e60b ASJ |
5812 | if ((pf->flags & I40E_FLAG_FD_SB_ENABLED) && |
5813 | (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) { | |
5814 | pf->auto_disable_flags &= ~I40E_FLAG_FD_SB_ENABLED; | |
2e4875e3 ASJ |
5815 | if (I40E_DEBUG_FD & pf->hw.debug_mask) |
5816 | dev_info(&pf->pdev->dev, "FD Sideband/ntuple is being enabled since we have space in the table now\n"); | |
55a5e60b ASJ |
5817 | } |
5818 | } | |
5819 | /* Wait for some more space to be available to turn on ATR */ | |
5820 | if (fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM * 2)) { | |
5821 | if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) && | |
5822 | (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) { | |
5823 | pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED; | |
2e4875e3 ASJ |
5824 | if (I40E_DEBUG_FD & pf->hw.debug_mask) |
5825 | dev_info(&pf->pdev->dev, "ATR is being enabled since we have space in the table now\n"); | |
55a5e60b ASJ |
5826 | } |
5827 | } | |
3487b6c3 CW |
5828 | |
5829 | /* if hw had a problem adding a filter, delete it */ | |
5830 | if (pf->fd_inv > 0) { | |
5831 | hlist_for_each_entry_safe(filter, node, | |
5832 | &pf->fdir_filter_list, fdir_node) { | |
5833 | if (filter->fd_id == pf->fd_inv) { | |
5834 | hlist_del(&filter->fdir_node); | |
5835 | kfree(filter); | |
5836 | pf->fdir_pf_active_filters--; | |
5837 | } | |
5838 | } | |
5839 | } | |
55a5e60b ASJ |
5840 | } |
5841 | ||
1e1be8f6 | 5842 | #define I40E_MIN_FD_FLUSH_INTERVAL 10 |
04294e38 | 5843 | #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30 |
1e1be8f6 ASJ |
5844 | /** |
5845 | * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB | |
5846 | * @pf: board private structure | |
5847 | **/ | |
5848 | static void i40e_fdir_flush_and_replay(struct i40e_pf *pf) | |
5849 | { | |
04294e38 | 5850 | unsigned long min_flush_time; |
1e1be8f6 | 5851 | int flush_wait_retry = 50; |
04294e38 ASJ |
5852 | bool disable_atr = false; |
5853 | int fd_room; | |
1e1be8f6 ASJ |
5854 | int reg; |
5855 | ||
1790ed0c AA |
5856 | if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED))) |
5857 | return; | |
5858 | ||
a5fdaf34 JB |
5859 | if (!time_after(jiffies, pf->fd_flush_timestamp + |
5860 | (I40E_MIN_FD_FLUSH_INTERVAL * HZ))) | |
5861 | return; | |
04294e38 | 5862 | |
a5fdaf34 JB |
5863 | /* If the flush is happening too quick and we have mostly SB rules we |
5864 | * should not re-enable ATR for some time. | |
5865 | */ | |
5866 | min_flush_time = pf->fd_flush_timestamp + | |
5867 | (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE * HZ); | |
5868 | fd_room = pf->fdir_pf_filter_count - pf->fdir_pf_active_filters; | |
5869 | ||
5870 | if (!(time_after(jiffies, min_flush_time)) && | |
5871 | (fd_room < I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR)) { | |
5872 | if (I40E_DEBUG_FD & pf->hw.debug_mask) | |
5873 | dev_info(&pf->pdev->dev, "ATR disabled, not enough FD filter space.\n"); | |
5874 | disable_atr = true; | |
5875 | } | |
5876 | ||
5877 | pf->fd_flush_timestamp = jiffies; | |
5878 | pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED; | |
5879 | /* flush all filters */ | |
5880 | wr32(&pf->hw, I40E_PFQF_CTL_1, | |
5881 | I40E_PFQF_CTL_1_CLEARFDTABLE_MASK); | |
5882 | i40e_flush(&pf->hw); | |
5883 | pf->fd_flush_cnt++; | |
5884 | pf->fd_add_err = 0; | |
5885 | do { | |
5886 | /* Check FD flush status every 5-6msec */ | |
5887 | usleep_range(5000, 6000); | |
5888 | reg = rd32(&pf->hw, I40E_PFQF_CTL_1); | |
5889 | if (!(reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK)) | |
5890 | break; | |
5891 | } while (flush_wait_retry--); | |
5892 | if (reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK) { | |
5893 | dev_warn(&pf->pdev->dev, "FD table did not flush, needs more time\n"); | |
5894 | } else { | |
5895 | /* replay sideband filters */ | |
5896 | i40e_fdir_filter_restore(pf->vsi[pf->lan_vsi]); | |
5897 | if (!disable_atr) | |
5898 | pf->flags |= I40E_FLAG_FD_ATR_ENABLED; | |
5899 | clear_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state); | |
5900 | if (I40E_DEBUG_FD & pf->hw.debug_mask) | |
5901 | dev_info(&pf->pdev->dev, "FD Filter table flushed and FD-SB replayed.\n"); | |
1e1be8f6 | 5902 | } |
a5fdaf34 | 5903 | |
1e1be8f6 ASJ |
5904 | } |
5905 | ||
5906 | /** | |
5907 | * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed | |
5908 | * @pf: board private structure | |
5909 | **/ | |
04294e38 | 5910 | u32 i40e_get_current_atr_cnt(struct i40e_pf *pf) |
1e1be8f6 ASJ |
5911 | { |
5912 | return i40e_get_current_fd_count(pf) - pf->fdir_pf_active_filters; | |
5913 | } | |
5914 | ||
5915 | /* We can see up to 256 filter programming desc in transit if the filters are | |
5916 | * being applied really fast; before we see the first | |
5917 | * filter miss error on Rx queue 0. Accumulating enough error messages before | |
5918 | * reacting will make sure we don't cause flush too often. | |
5919 | */ | |
5920 | #define I40E_MAX_FD_PROGRAM_ERROR 256 | |
5921 | ||
41c445ff JB |
5922 | /** |
5923 | * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table | |
5924 | * @pf: board private structure | |
5925 | **/ | |
5926 | static void i40e_fdir_reinit_subtask(struct i40e_pf *pf) | |
5927 | { | |
41c445ff | 5928 | |
41c445ff JB |
5929 | /* if interface is down do nothing */ |
5930 | if (test_bit(__I40E_DOWN, &pf->state)) | |
5931 | return; | |
1e1be8f6 | 5932 | |
1790ed0c AA |
5933 | if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED))) |
5934 | return; | |
5935 | ||
04294e38 | 5936 | if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) |
1e1be8f6 ASJ |
5937 | i40e_fdir_flush_and_replay(pf); |
5938 | ||
55a5e60b ASJ |
5939 | i40e_fdir_check_and_reenable(pf); |
5940 | ||
41c445ff JB |
5941 | } |
5942 | ||
5943 | /** | |
5944 | * i40e_vsi_link_event - notify VSI of a link event | |
5945 | * @vsi: vsi to be notified | |
5946 | * @link_up: link up or down | |
5947 | **/ | |
5948 | static void i40e_vsi_link_event(struct i40e_vsi *vsi, bool link_up) | |
5949 | { | |
32b5b811 | 5950 | if (!vsi || test_bit(__I40E_DOWN, &vsi->state)) |
41c445ff JB |
5951 | return; |
5952 | ||
5953 | switch (vsi->type) { | |
5954 | case I40E_VSI_MAIN: | |
38e00438 VD |
5955 | #ifdef I40E_FCOE |
5956 | case I40E_VSI_FCOE: | |
5957 | #endif | |
41c445ff JB |
5958 | if (!vsi->netdev || !vsi->netdev_registered) |
5959 | break; | |
5960 | ||
5961 | if (link_up) { | |
5962 | netif_carrier_on(vsi->netdev); | |
5963 | netif_tx_wake_all_queues(vsi->netdev); | |
5964 | } else { | |
5965 | netif_carrier_off(vsi->netdev); | |
5966 | netif_tx_stop_all_queues(vsi->netdev); | |
5967 | } | |
5968 | break; | |
5969 | ||
5970 | case I40E_VSI_SRIOV: | |
41c445ff JB |
5971 | case I40E_VSI_VMDQ2: |
5972 | case I40E_VSI_CTRL: | |
5973 | case I40E_VSI_MIRROR: | |
5974 | default: | |
5975 | /* there is no notification for other VSIs */ | |
5976 | break; | |
5977 | } | |
5978 | } | |
5979 | ||
5980 | /** | |
5981 | * i40e_veb_link_event - notify elements on the veb of a link event | |
5982 | * @veb: veb to be notified | |
5983 | * @link_up: link up or down | |
5984 | **/ | |
5985 | static void i40e_veb_link_event(struct i40e_veb *veb, bool link_up) | |
5986 | { | |
5987 | struct i40e_pf *pf; | |
5988 | int i; | |
5989 | ||
5990 | if (!veb || !veb->pf) | |
5991 | return; | |
5992 | pf = veb->pf; | |
5993 | ||
5994 | /* depth first... */ | |
5995 | for (i = 0; i < I40E_MAX_VEB; i++) | |
5996 | if (pf->veb[i] && (pf->veb[i]->uplink_seid == veb->seid)) | |
5997 | i40e_veb_link_event(pf->veb[i], link_up); | |
5998 | ||
5999 | /* ... now the local VSIs */ | |
505682cd | 6000 | for (i = 0; i < pf->num_alloc_vsi; i++) |
41c445ff JB |
6001 | if (pf->vsi[i] && (pf->vsi[i]->uplink_seid == veb->seid)) |
6002 | i40e_vsi_link_event(pf->vsi[i], link_up); | |
6003 | } | |
6004 | ||
6005 | /** | |
6006 | * i40e_link_event - Update netif_carrier status | |
6007 | * @pf: board private structure | |
6008 | **/ | |
6009 | static void i40e_link_event(struct i40e_pf *pf) | |
6010 | { | |
320684cd | 6011 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
fef59ddf | 6012 | u8 new_link_speed, old_link_speed; |
a72a5abc JB |
6013 | i40e_status status; |
6014 | bool new_link, old_link; | |
41c445ff | 6015 | |
1e701e09 JB |
6016 | /* set this to force the get_link_status call to refresh state */ |
6017 | pf->hw.phy.get_link_info = true; | |
6018 | ||
41c445ff | 6019 | old_link = (pf->hw.phy.link_info_old.link_info & I40E_AQ_LINK_UP); |
a72a5abc JB |
6020 | |
6021 | status = i40e_get_link_status(&pf->hw, &new_link); | |
6022 | if (status) { | |
6023 | dev_dbg(&pf->pdev->dev, "couldn't get link state, status: %d\n", | |
6024 | status); | |
6025 | return; | |
6026 | } | |
6027 | ||
fef59ddf CS |
6028 | old_link_speed = pf->hw.phy.link_info_old.link_speed; |
6029 | new_link_speed = pf->hw.phy.link_info.link_speed; | |
41c445ff | 6030 | |
1e701e09 | 6031 | if (new_link == old_link && |
fef59ddf | 6032 | new_link_speed == old_link_speed && |
320684cd MW |
6033 | (test_bit(__I40E_DOWN, &vsi->state) || |
6034 | new_link == netif_carrier_ok(vsi->netdev))) | |
41c445ff | 6035 | return; |
320684cd MW |
6036 | |
6037 | if (!test_bit(__I40E_DOWN, &vsi->state)) | |
6038 | i40e_print_link_message(vsi, new_link); | |
41c445ff JB |
6039 | |
6040 | /* Notify the base of the switch tree connected to | |
6041 | * the link. Floating VEBs are not notified. | |
6042 | */ | |
6043 | if (pf->lan_veb != I40E_NO_VEB && pf->veb[pf->lan_veb]) | |
6044 | i40e_veb_link_event(pf->veb[pf->lan_veb], new_link); | |
6045 | else | |
320684cd | 6046 | i40e_vsi_link_event(vsi, new_link); |
41c445ff JB |
6047 | |
6048 | if (pf->vf) | |
6049 | i40e_vc_notify_link_state(pf); | |
beb0dff1 JK |
6050 | |
6051 | if (pf->flags & I40E_FLAG_PTP) | |
6052 | i40e_ptp_set_increment(pf); | |
41c445ff JB |
6053 | } |
6054 | ||
41c445ff | 6055 | /** |
21536717 | 6056 | * i40e_watchdog_subtask - periodic checks not using event driven response |
41c445ff JB |
6057 | * @pf: board private structure |
6058 | **/ | |
6059 | static void i40e_watchdog_subtask(struct i40e_pf *pf) | |
6060 | { | |
6061 | int i; | |
6062 | ||
6063 | /* if interface is down do nothing */ | |
6064 | if (test_bit(__I40E_DOWN, &pf->state) || | |
6065 | test_bit(__I40E_CONFIG_BUSY, &pf->state)) | |
6066 | return; | |
6067 | ||
21536717 SN |
6068 | /* make sure we don't do these things too often */ |
6069 | if (time_before(jiffies, (pf->service_timer_previous + | |
6070 | pf->service_timer_period))) | |
6071 | return; | |
6072 | pf->service_timer_previous = jiffies; | |
6073 | ||
9ac77266 SN |
6074 | if (pf->flags & I40E_FLAG_LINK_POLLING_ENABLED) |
6075 | i40e_link_event(pf); | |
21536717 | 6076 | |
41c445ff JB |
6077 | /* Update the stats for active netdevs so the network stack |
6078 | * can look at updated numbers whenever it cares to | |
6079 | */ | |
505682cd | 6080 | for (i = 0; i < pf->num_alloc_vsi; i++) |
41c445ff JB |
6081 | if (pf->vsi[i] && pf->vsi[i]->netdev) |
6082 | i40e_update_stats(pf->vsi[i]); | |
6083 | ||
d1a8d275 ASJ |
6084 | if (pf->flags & I40E_FLAG_VEB_STATS_ENABLED) { |
6085 | /* Update the stats for the active switching components */ | |
6086 | for (i = 0; i < I40E_MAX_VEB; i++) | |
6087 | if (pf->veb[i]) | |
6088 | i40e_update_veb_stats(pf->veb[i]); | |
6089 | } | |
beb0dff1 JK |
6090 | |
6091 | i40e_ptp_rx_hang(pf->vsi[pf->lan_vsi]); | |
41c445ff JB |
6092 | } |
6093 | ||
6094 | /** | |
6095 | * i40e_reset_subtask - Set up for resetting the device and driver | |
6096 | * @pf: board private structure | |
6097 | **/ | |
6098 | static void i40e_reset_subtask(struct i40e_pf *pf) | |
6099 | { | |
6100 | u32 reset_flags = 0; | |
6101 | ||
23326186 | 6102 | rtnl_lock(); |
41c445ff | 6103 | if (test_bit(__I40E_REINIT_REQUESTED, &pf->state)) { |
41a1d04b | 6104 | reset_flags |= BIT_ULL(__I40E_REINIT_REQUESTED); |
41c445ff JB |
6105 | clear_bit(__I40E_REINIT_REQUESTED, &pf->state); |
6106 | } | |
6107 | if (test_bit(__I40E_PF_RESET_REQUESTED, &pf->state)) { | |
41a1d04b | 6108 | reset_flags |= BIT_ULL(__I40E_PF_RESET_REQUESTED); |
41c445ff JB |
6109 | clear_bit(__I40E_PF_RESET_REQUESTED, &pf->state); |
6110 | } | |
6111 | if (test_bit(__I40E_CORE_RESET_REQUESTED, &pf->state)) { | |
41a1d04b | 6112 | reset_flags |= BIT_ULL(__I40E_CORE_RESET_REQUESTED); |
41c445ff JB |
6113 | clear_bit(__I40E_CORE_RESET_REQUESTED, &pf->state); |
6114 | } | |
6115 | if (test_bit(__I40E_GLOBAL_RESET_REQUESTED, &pf->state)) { | |
41a1d04b | 6116 | reset_flags |= BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED); |
41c445ff JB |
6117 | clear_bit(__I40E_GLOBAL_RESET_REQUESTED, &pf->state); |
6118 | } | |
b5d06f05 | 6119 | if (test_bit(__I40E_DOWN_REQUESTED, &pf->state)) { |
41a1d04b | 6120 | reset_flags |= BIT_ULL(__I40E_DOWN_REQUESTED); |
b5d06f05 NP |
6121 | clear_bit(__I40E_DOWN_REQUESTED, &pf->state); |
6122 | } | |
41c445ff JB |
6123 | |
6124 | /* If there's a recovery already waiting, it takes | |
6125 | * precedence before starting a new reset sequence. | |
6126 | */ | |
6127 | if (test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) { | |
6128 | i40e_handle_reset_warning(pf); | |
23326186 | 6129 | goto unlock; |
41c445ff JB |
6130 | } |
6131 | ||
6132 | /* If we're already down or resetting, just bail */ | |
6133 | if (reset_flags && | |
6134 | !test_bit(__I40E_DOWN, &pf->state) && | |
6135 | !test_bit(__I40E_CONFIG_BUSY, &pf->state)) | |
6136 | i40e_do_reset(pf, reset_flags); | |
23326186 ASJ |
6137 | |
6138 | unlock: | |
6139 | rtnl_unlock(); | |
41c445ff JB |
6140 | } |
6141 | ||
6142 | /** | |
6143 | * i40e_handle_link_event - Handle link event | |
6144 | * @pf: board private structure | |
6145 | * @e: event info posted on ARQ | |
6146 | **/ | |
6147 | static void i40e_handle_link_event(struct i40e_pf *pf, | |
6148 | struct i40e_arq_event_info *e) | |
6149 | { | |
6150 | struct i40e_hw *hw = &pf->hw; | |
6151 | struct i40e_aqc_get_link_status *status = | |
6152 | (struct i40e_aqc_get_link_status *)&e->desc.params.raw; | |
41c445ff JB |
6153 | |
6154 | /* save off old link status information */ | |
1a2f6248 | 6155 | hw->phy.link_info_old = hw->phy.link_info; |
41c445ff | 6156 | |
1e701e09 JB |
6157 | /* Do a new status request to re-enable LSE reporting |
6158 | * and load new status information into the hw struct | |
6159 | * This completely ignores any state information | |
6160 | * in the ARQ event info, instead choosing to always | |
6161 | * issue the AQ update link status command. | |
6162 | */ | |
6163 | i40e_link_event(pf); | |
6164 | ||
7b592f61 CW |
6165 | /* check for unqualified module, if link is down */ |
6166 | if ((status->link_info & I40E_AQ_MEDIA_AVAILABLE) && | |
6167 | (!(status->an_info & I40E_AQ_QUALIFIED_MODULE)) && | |
6168 | (!(status->link_info & I40E_AQ_LINK_UP))) | |
6169 | dev_err(&pf->pdev->dev, | |
6170 | "The driver failed to link because an unqualified module was detected.\n"); | |
41c445ff JB |
6171 | } |
6172 | ||
6173 | /** | |
6174 | * i40e_clean_adminq_subtask - Clean the AdminQ rings | |
6175 | * @pf: board private structure | |
6176 | **/ | |
6177 | static void i40e_clean_adminq_subtask(struct i40e_pf *pf) | |
6178 | { | |
6179 | struct i40e_arq_event_info event; | |
6180 | struct i40e_hw *hw = &pf->hw; | |
6181 | u16 pending, i = 0; | |
6182 | i40e_status ret; | |
6183 | u16 opcode; | |
86df242b | 6184 | u32 oldval; |
41c445ff JB |
6185 | u32 val; |
6186 | ||
a316f651 ASJ |
6187 | /* Do not run clean AQ when PF reset fails */ |
6188 | if (test_bit(__I40E_RESET_FAILED, &pf->state)) | |
6189 | return; | |
6190 | ||
86df242b SN |
6191 | /* check for error indications */ |
6192 | val = rd32(&pf->hw, pf->hw.aq.arq.len); | |
6193 | oldval = val; | |
6194 | if (val & I40E_PF_ARQLEN_ARQVFE_MASK) { | |
6195 | dev_info(&pf->pdev->dev, "ARQ VF Error detected\n"); | |
6196 | val &= ~I40E_PF_ARQLEN_ARQVFE_MASK; | |
6197 | } | |
6198 | if (val & I40E_PF_ARQLEN_ARQOVFL_MASK) { | |
6199 | dev_info(&pf->pdev->dev, "ARQ Overflow Error detected\n"); | |
6200 | val &= ~I40E_PF_ARQLEN_ARQOVFL_MASK; | |
6201 | } | |
6202 | if (val & I40E_PF_ARQLEN_ARQCRIT_MASK) { | |
6203 | dev_info(&pf->pdev->dev, "ARQ Critical Error detected\n"); | |
6204 | val &= ~I40E_PF_ARQLEN_ARQCRIT_MASK; | |
6205 | } | |
6206 | if (oldval != val) | |
6207 | wr32(&pf->hw, pf->hw.aq.arq.len, val); | |
6208 | ||
6209 | val = rd32(&pf->hw, pf->hw.aq.asq.len); | |
6210 | oldval = val; | |
6211 | if (val & I40E_PF_ATQLEN_ATQVFE_MASK) { | |
6212 | dev_info(&pf->pdev->dev, "ASQ VF Error detected\n"); | |
6213 | val &= ~I40E_PF_ATQLEN_ATQVFE_MASK; | |
6214 | } | |
6215 | if (val & I40E_PF_ATQLEN_ATQOVFL_MASK) { | |
6216 | dev_info(&pf->pdev->dev, "ASQ Overflow Error detected\n"); | |
6217 | val &= ~I40E_PF_ATQLEN_ATQOVFL_MASK; | |
6218 | } | |
6219 | if (val & I40E_PF_ATQLEN_ATQCRIT_MASK) { | |
6220 | dev_info(&pf->pdev->dev, "ASQ Critical Error detected\n"); | |
6221 | val &= ~I40E_PF_ATQLEN_ATQCRIT_MASK; | |
6222 | } | |
6223 | if (oldval != val) | |
6224 | wr32(&pf->hw, pf->hw.aq.asq.len, val); | |
6225 | ||
1001dc37 MW |
6226 | event.buf_len = I40E_MAX_AQ_BUF_SIZE; |
6227 | event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL); | |
41c445ff JB |
6228 | if (!event.msg_buf) |
6229 | return; | |
6230 | ||
6231 | do { | |
6232 | ret = i40e_clean_arq_element(hw, &event, &pending); | |
56497978 | 6233 | if (ret == I40E_ERR_ADMIN_QUEUE_NO_WORK) |
41c445ff | 6234 | break; |
56497978 | 6235 | else if (ret) { |
41c445ff JB |
6236 | dev_info(&pf->pdev->dev, "ARQ event error %d\n", ret); |
6237 | break; | |
6238 | } | |
6239 | ||
6240 | opcode = le16_to_cpu(event.desc.opcode); | |
6241 | switch (opcode) { | |
6242 | ||
6243 | case i40e_aqc_opc_get_link_status: | |
6244 | i40e_handle_link_event(pf, &event); | |
6245 | break; | |
6246 | case i40e_aqc_opc_send_msg_to_pf: | |
6247 | ret = i40e_vc_process_vf_msg(pf, | |
6248 | le16_to_cpu(event.desc.retval), | |
6249 | le32_to_cpu(event.desc.cookie_high), | |
6250 | le32_to_cpu(event.desc.cookie_low), | |
6251 | event.msg_buf, | |
1001dc37 | 6252 | event.msg_len); |
41c445ff JB |
6253 | break; |
6254 | case i40e_aqc_opc_lldp_update_mib: | |
69bfb110 | 6255 | dev_dbg(&pf->pdev->dev, "ARQ: Update LLDP MIB event received\n"); |
4e3b35b0 NP |
6256 | #ifdef CONFIG_I40E_DCB |
6257 | rtnl_lock(); | |
6258 | ret = i40e_handle_lldp_event(pf, &event); | |
6259 | rtnl_unlock(); | |
6260 | #endif /* CONFIG_I40E_DCB */ | |
41c445ff JB |
6261 | break; |
6262 | case i40e_aqc_opc_event_lan_overflow: | |
69bfb110 | 6263 | dev_dbg(&pf->pdev->dev, "ARQ LAN queue overflow event received\n"); |
41c445ff JB |
6264 | i40e_handle_lan_overflow_event(pf, &event); |
6265 | break; | |
0467bc91 SN |
6266 | case i40e_aqc_opc_send_msg_to_peer: |
6267 | dev_info(&pf->pdev->dev, "ARQ: Msg from other pf\n"); | |
6268 | break; | |
91a0f930 SN |
6269 | case i40e_aqc_opc_nvm_erase: |
6270 | case i40e_aqc_opc_nvm_update: | |
6271 | i40e_debug(&pf->hw, I40E_DEBUG_NVM, "ARQ NVM operation completed\n"); | |
6272 | break; | |
41c445ff JB |
6273 | default: |
6274 | dev_info(&pf->pdev->dev, | |
0467bc91 SN |
6275 | "ARQ Error: Unknown event 0x%04x received\n", |
6276 | opcode); | |
41c445ff JB |
6277 | break; |
6278 | } | |
6279 | } while (pending && (i++ < pf->adminq_work_limit)); | |
6280 | ||
6281 | clear_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state); | |
6282 | /* re-enable Admin queue interrupt cause */ | |
6283 | val = rd32(hw, I40E_PFINT_ICR0_ENA); | |
6284 | val |= I40E_PFINT_ICR0_ENA_ADMINQ_MASK; | |
6285 | wr32(hw, I40E_PFINT_ICR0_ENA, val); | |
6286 | i40e_flush(hw); | |
6287 | ||
6288 | kfree(event.msg_buf); | |
6289 | } | |
6290 | ||
4eb3f768 SN |
6291 | /** |
6292 | * i40e_verify_eeprom - make sure eeprom is good to use | |
6293 | * @pf: board private structure | |
6294 | **/ | |
6295 | static void i40e_verify_eeprom(struct i40e_pf *pf) | |
6296 | { | |
6297 | int err; | |
6298 | ||
6299 | err = i40e_diag_eeprom_test(&pf->hw); | |
6300 | if (err) { | |
6301 | /* retry in case of garbage read */ | |
6302 | err = i40e_diag_eeprom_test(&pf->hw); | |
6303 | if (err) { | |
6304 | dev_info(&pf->pdev->dev, "eeprom check failed (%d), Tx/Rx traffic disabled\n", | |
6305 | err); | |
6306 | set_bit(__I40E_BAD_EEPROM, &pf->state); | |
6307 | } | |
6308 | } | |
6309 | ||
6310 | if (!err && test_bit(__I40E_BAD_EEPROM, &pf->state)) { | |
6311 | dev_info(&pf->pdev->dev, "eeprom check passed, Tx/Rx traffic enabled\n"); | |
6312 | clear_bit(__I40E_BAD_EEPROM, &pf->state); | |
6313 | } | |
6314 | } | |
6315 | ||
386a0afa AA |
6316 | /** |
6317 | * i40e_enable_pf_switch_lb | |
b40c82e6 | 6318 | * @pf: pointer to the PF structure |
386a0afa AA |
6319 | * |
6320 | * enable switch loop back or die - no point in a return value | |
6321 | **/ | |
6322 | static void i40e_enable_pf_switch_lb(struct i40e_pf *pf) | |
6323 | { | |
6324 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; | |
6325 | struct i40e_vsi_context ctxt; | |
f1c7e72e | 6326 | int ret; |
386a0afa AA |
6327 | |
6328 | ctxt.seid = pf->main_vsi_seid; | |
6329 | ctxt.pf_num = pf->hw.pf_id; | |
6330 | ctxt.vf_num = 0; | |
f1c7e72e SN |
6331 | ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); |
6332 | if (ret) { | |
386a0afa | 6333 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
6334 | "couldn't get PF vsi config, err %s aq_err %s\n", |
6335 | i40e_stat_str(&pf->hw, ret), | |
6336 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
386a0afa AA |
6337 | return; |
6338 | } | |
6339 | ctxt.flags = I40E_AQ_VSI_TYPE_PF; | |
6340 | ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID); | |
6341 | ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB); | |
6342 | ||
f1c7e72e SN |
6343 | ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); |
6344 | if (ret) { | |
386a0afa | 6345 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
6346 | "update vsi switch failed, err %s aq_err %s\n", |
6347 | i40e_stat_str(&pf->hw, ret), | |
6348 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
386a0afa AA |
6349 | } |
6350 | } | |
6351 | ||
6352 | /** | |
6353 | * i40e_disable_pf_switch_lb | |
b40c82e6 | 6354 | * @pf: pointer to the PF structure |
386a0afa AA |
6355 | * |
6356 | * disable switch loop back or die - no point in a return value | |
6357 | **/ | |
6358 | static void i40e_disable_pf_switch_lb(struct i40e_pf *pf) | |
6359 | { | |
6360 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; | |
6361 | struct i40e_vsi_context ctxt; | |
f1c7e72e | 6362 | int ret; |
386a0afa AA |
6363 | |
6364 | ctxt.seid = pf->main_vsi_seid; | |
6365 | ctxt.pf_num = pf->hw.pf_id; | |
6366 | ctxt.vf_num = 0; | |
f1c7e72e SN |
6367 | ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); |
6368 | if (ret) { | |
386a0afa | 6369 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
6370 | "couldn't get PF vsi config, err %s aq_err %s\n", |
6371 | i40e_stat_str(&pf->hw, ret), | |
6372 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
386a0afa AA |
6373 | return; |
6374 | } | |
6375 | ctxt.flags = I40E_AQ_VSI_TYPE_PF; | |
6376 | ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID); | |
6377 | ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB); | |
6378 | ||
f1c7e72e SN |
6379 | ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); |
6380 | if (ret) { | |
386a0afa | 6381 | dev_info(&pf->pdev->dev, |
f1c7e72e SN |
6382 | "update vsi switch failed, err %s aq_err %s\n", |
6383 | i40e_stat_str(&pf->hw, ret), | |
6384 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
386a0afa AA |
6385 | } |
6386 | } | |
6387 | ||
51616018 NP |
6388 | /** |
6389 | * i40e_config_bridge_mode - Configure the HW bridge mode | |
6390 | * @veb: pointer to the bridge instance | |
6391 | * | |
6392 | * Configure the loop back mode for the LAN VSI that is downlink to the | |
6393 | * specified HW bridge instance. It is expected this function is called | |
6394 | * when a new HW bridge is instantiated. | |
6395 | **/ | |
6396 | static void i40e_config_bridge_mode(struct i40e_veb *veb) | |
6397 | { | |
6398 | struct i40e_pf *pf = veb->pf; | |
6399 | ||
6dec1017 SN |
6400 | if (pf->hw.debug_mask & I40E_DEBUG_LAN) |
6401 | dev_info(&pf->pdev->dev, "enabling bridge mode: %s\n", | |
6402 | veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); | |
51616018 NP |
6403 | if (veb->bridge_mode & BRIDGE_MODE_VEPA) |
6404 | i40e_disable_pf_switch_lb(pf); | |
6405 | else | |
6406 | i40e_enable_pf_switch_lb(pf); | |
6407 | } | |
6408 | ||
41c445ff JB |
6409 | /** |
6410 | * i40e_reconstitute_veb - rebuild the VEB and anything connected to it | |
6411 | * @veb: pointer to the VEB instance | |
6412 | * | |
6413 | * This is a recursive function that first builds the attached VSIs then | |
6414 | * recurses in to build the next layer of VEB. We track the connections | |
6415 | * through our own index numbers because the seid's from the HW could | |
6416 | * change across the reset. | |
6417 | **/ | |
6418 | static int i40e_reconstitute_veb(struct i40e_veb *veb) | |
6419 | { | |
6420 | struct i40e_vsi *ctl_vsi = NULL; | |
6421 | struct i40e_pf *pf = veb->pf; | |
6422 | int v, veb_idx; | |
6423 | int ret; | |
6424 | ||
6425 | /* build VSI that owns this VEB, temporarily attached to base VEB */ | |
505682cd | 6426 | for (v = 0; v < pf->num_alloc_vsi && !ctl_vsi; v++) { |
41c445ff JB |
6427 | if (pf->vsi[v] && |
6428 | pf->vsi[v]->veb_idx == veb->idx && | |
6429 | pf->vsi[v]->flags & I40E_VSI_FLAG_VEB_OWNER) { | |
6430 | ctl_vsi = pf->vsi[v]; | |
6431 | break; | |
6432 | } | |
6433 | } | |
6434 | if (!ctl_vsi) { | |
6435 | dev_info(&pf->pdev->dev, | |
6436 | "missing owner VSI for veb_idx %d\n", veb->idx); | |
6437 | ret = -ENOENT; | |
6438 | goto end_reconstitute; | |
6439 | } | |
6440 | if (ctl_vsi != pf->vsi[pf->lan_vsi]) | |
6441 | ctl_vsi->uplink_seid = pf->vsi[pf->lan_vsi]->uplink_seid; | |
6442 | ret = i40e_add_vsi(ctl_vsi); | |
6443 | if (ret) { | |
6444 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
6445 | "rebuild of veb_idx %d owner VSI failed: %d\n", |
6446 | veb->idx, ret); | |
41c445ff JB |
6447 | goto end_reconstitute; |
6448 | } | |
6449 | i40e_vsi_reset_stats(ctl_vsi); | |
6450 | ||
6451 | /* create the VEB in the switch and move the VSI onto the VEB */ | |
6452 | ret = i40e_add_veb(veb, ctl_vsi); | |
6453 | if (ret) | |
6454 | goto end_reconstitute; | |
6455 | ||
fc60861e ASJ |
6456 | if (pf->flags & I40E_FLAG_VEB_MODE_ENABLED) |
6457 | veb->bridge_mode = BRIDGE_MODE_VEB; | |
6458 | else | |
6459 | veb->bridge_mode = BRIDGE_MODE_VEPA; | |
51616018 | 6460 | i40e_config_bridge_mode(veb); |
b64ba084 | 6461 | |
41c445ff | 6462 | /* create the remaining VSIs attached to this VEB */ |
505682cd | 6463 | for (v = 0; v < pf->num_alloc_vsi; v++) { |
41c445ff JB |
6464 | if (!pf->vsi[v] || pf->vsi[v] == ctl_vsi) |
6465 | continue; | |
6466 | ||
6467 | if (pf->vsi[v]->veb_idx == veb->idx) { | |
6468 | struct i40e_vsi *vsi = pf->vsi[v]; | |
6995b36c | 6469 | |
41c445ff JB |
6470 | vsi->uplink_seid = veb->seid; |
6471 | ret = i40e_add_vsi(vsi); | |
6472 | if (ret) { | |
6473 | dev_info(&pf->pdev->dev, | |
6474 | "rebuild of vsi_idx %d failed: %d\n", | |
6475 | v, ret); | |
6476 | goto end_reconstitute; | |
6477 | } | |
6478 | i40e_vsi_reset_stats(vsi); | |
6479 | } | |
6480 | } | |
6481 | ||
6482 | /* create any VEBs attached to this VEB - RECURSION */ | |
6483 | for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) { | |
6484 | if (pf->veb[veb_idx] && pf->veb[veb_idx]->veb_idx == veb->idx) { | |
6485 | pf->veb[veb_idx]->uplink_seid = veb->seid; | |
6486 | ret = i40e_reconstitute_veb(pf->veb[veb_idx]); | |
6487 | if (ret) | |
6488 | break; | |
6489 | } | |
6490 | } | |
6491 | ||
6492 | end_reconstitute: | |
6493 | return ret; | |
6494 | } | |
6495 | ||
6496 | /** | |
6497 | * i40e_get_capabilities - get info about the HW | |
6498 | * @pf: the PF struct | |
6499 | **/ | |
6500 | static int i40e_get_capabilities(struct i40e_pf *pf) | |
6501 | { | |
6502 | struct i40e_aqc_list_capabilities_element_resp *cap_buf; | |
6503 | u16 data_size; | |
6504 | int buf_len; | |
6505 | int err; | |
6506 | ||
6507 | buf_len = 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp); | |
6508 | do { | |
6509 | cap_buf = kzalloc(buf_len, GFP_KERNEL); | |
6510 | if (!cap_buf) | |
6511 | return -ENOMEM; | |
6512 | ||
6513 | /* this loads the data into the hw struct for us */ | |
6514 | err = i40e_aq_discover_capabilities(&pf->hw, cap_buf, buf_len, | |
6515 | &data_size, | |
6516 | i40e_aqc_opc_list_func_capabilities, | |
6517 | NULL); | |
6518 | /* data loaded, buffer no longer needed */ | |
6519 | kfree(cap_buf); | |
6520 | ||
6521 | if (pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOMEM) { | |
6522 | /* retry with a larger buffer */ | |
6523 | buf_len = data_size; | |
6524 | } else if (pf->hw.aq.asq_last_status != I40E_AQ_RC_OK) { | |
6525 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
6526 | "capability discovery failed, err %s aq_err %s\n", |
6527 | i40e_stat_str(&pf->hw, err), | |
6528 | i40e_aq_str(&pf->hw, | |
6529 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
6530 | return -ENODEV; |
6531 | } | |
6532 | } while (err); | |
6533 | ||
6534 | if (pf->hw.debug_mask & I40E_DEBUG_USER) | |
6535 | dev_info(&pf->pdev->dev, | |
6536 | "pf=%d, num_vfs=%d, msix_pf=%d, msix_vf=%d, fd_g=%d, fd_b=%d, pf_max_q=%d num_vsi=%d\n", | |
6537 | pf->hw.pf_id, pf->hw.func_caps.num_vfs, | |
6538 | pf->hw.func_caps.num_msix_vectors, | |
6539 | pf->hw.func_caps.num_msix_vectors_vf, | |
6540 | pf->hw.func_caps.fd_filters_guaranteed, | |
6541 | pf->hw.func_caps.fd_filters_best_effort, | |
6542 | pf->hw.func_caps.num_tx_qp, | |
6543 | pf->hw.func_caps.num_vsis); | |
6544 | ||
7134f9ce JB |
6545 | #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \ |
6546 | + pf->hw.func_caps.num_vfs) | |
6547 | if (pf->hw.revision_id == 0 && (DEF_NUM_VSI > pf->hw.func_caps.num_vsis)) { | |
6548 | dev_info(&pf->pdev->dev, | |
6549 | "got num_vsis %d, setting num_vsis to %d\n", | |
6550 | pf->hw.func_caps.num_vsis, DEF_NUM_VSI); | |
6551 | pf->hw.func_caps.num_vsis = DEF_NUM_VSI; | |
6552 | } | |
6553 | ||
41c445ff JB |
6554 | return 0; |
6555 | } | |
6556 | ||
cbf61325 ASJ |
6557 | static int i40e_vsi_clear(struct i40e_vsi *vsi); |
6558 | ||
41c445ff | 6559 | /** |
cbf61325 | 6560 | * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband |
41c445ff JB |
6561 | * @pf: board private structure |
6562 | **/ | |
cbf61325 | 6563 | static void i40e_fdir_sb_setup(struct i40e_pf *pf) |
41c445ff JB |
6564 | { |
6565 | struct i40e_vsi *vsi; | |
8a9eb7d3 | 6566 | int i; |
41c445ff | 6567 | |
407e063c JB |
6568 | /* quick workaround for an NVM issue that leaves a critical register |
6569 | * uninitialized | |
6570 | */ | |
6571 | if (!rd32(&pf->hw, I40E_GLQF_HKEY(0))) { | |
6572 | static const u32 hkey[] = { | |
6573 | 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36, | |
6574 | 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb, | |
6575 | 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21, | |
6576 | 0x95b3a76d}; | |
6577 | ||
6578 | for (i = 0; i <= I40E_GLQF_HKEY_MAX_INDEX; i++) | |
6579 | wr32(&pf->hw, I40E_GLQF_HKEY(i), hkey[i]); | |
6580 | } | |
6581 | ||
cbf61325 | 6582 | if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) |
41c445ff JB |
6583 | return; |
6584 | ||
cbf61325 | 6585 | /* find existing VSI and see if it needs configuring */ |
41c445ff | 6586 | vsi = NULL; |
505682cd | 6587 | for (i = 0; i < pf->num_alloc_vsi; i++) { |
cbf61325 | 6588 | if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) { |
41c445ff | 6589 | vsi = pf->vsi[i]; |
cbf61325 ASJ |
6590 | break; |
6591 | } | |
6592 | } | |
6593 | ||
6594 | /* create a new VSI if none exists */ | |
41c445ff | 6595 | if (!vsi) { |
cbf61325 ASJ |
6596 | vsi = i40e_vsi_setup(pf, I40E_VSI_FDIR, |
6597 | pf->vsi[pf->lan_vsi]->seid, 0); | |
41c445ff JB |
6598 | if (!vsi) { |
6599 | dev_info(&pf->pdev->dev, "Couldn't create FDir VSI\n"); | |
8a9eb7d3 SN |
6600 | pf->flags &= ~I40E_FLAG_FD_SB_ENABLED; |
6601 | return; | |
41c445ff | 6602 | } |
cbf61325 | 6603 | } |
41c445ff | 6604 | |
8a9eb7d3 | 6605 | i40e_vsi_setup_irqhandler(vsi, i40e_fdir_clean_ring); |
41c445ff JB |
6606 | } |
6607 | ||
6608 | /** | |
6609 | * i40e_fdir_teardown - release the Flow Director resources | |
6610 | * @pf: board private structure | |
6611 | **/ | |
6612 | static void i40e_fdir_teardown(struct i40e_pf *pf) | |
6613 | { | |
6614 | int i; | |
6615 | ||
17a73f6b | 6616 | i40e_fdir_filter_exit(pf); |
505682cd | 6617 | for (i = 0; i < pf->num_alloc_vsi; i++) { |
41c445ff JB |
6618 | if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) { |
6619 | i40e_vsi_release(pf->vsi[i]); | |
6620 | break; | |
6621 | } | |
6622 | } | |
6623 | } | |
6624 | ||
6625 | /** | |
f650a38b | 6626 | * i40e_prep_for_reset - prep for the core to reset |
41c445ff JB |
6627 | * @pf: board private structure |
6628 | * | |
b40c82e6 | 6629 | * Close up the VFs and other things in prep for PF Reset. |
f650a38b | 6630 | **/ |
23cfbe07 | 6631 | static void i40e_prep_for_reset(struct i40e_pf *pf) |
41c445ff | 6632 | { |
41c445ff | 6633 | struct i40e_hw *hw = &pf->hw; |
60442dea | 6634 | i40e_status ret = 0; |
41c445ff JB |
6635 | u32 v; |
6636 | ||
6637 | clear_bit(__I40E_RESET_INTR_RECEIVED, &pf->state); | |
6638 | if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state)) | |
23cfbe07 | 6639 | return; |
41c445ff | 6640 | |
69bfb110 | 6641 | dev_dbg(&pf->pdev->dev, "Tearing down internal switch for reset\n"); |
41c445ff | 6642 | |
41c445ff JB |
6643 | /* quiesce the VSIs and their queues that are not already DOWN */ |
6644 | i40e_pf_quiesce_all_vsi(pf); | |
6645 | ||
505682cd | 6646 | for (v = 0; v < pf->num_alloc_vsi; v++) { |
41c445ff JB |
6647 | if (pf->vsi[v]) |
6648 | pf->vsi[v]->seid = 0; | |
6649 | } | |
6650 | ||
6651 | i40e_shutdown_adminq(&pf->hw); | |
6652 | ||
f650a38b | 6653 | /* call shutdown HMC */ |
60442dea SN |
6654 | if (hw->hmc.hmc_obj) { |
6655 | ret = i40e_shutdown_lan_hmc(hw); | |
23cfbe07 | 6656 | if (ret) |
60442dea SN |
6657 | dev_warn(&pf->pdev->dev, |
6658 | "shutdown_lan_hmc failed: %d\n", ret); | |
f650a38b | 6659 | } |
f650a38b ASJ |
6660 | } |
6661 | ||
44033fac JB |
6662 | /** |
6663 | * i40e_send_version - update firmware with driver version | |
6664 | * @pf: PF struct | |
6665 | */ | |
6666 | static void i40e_send_version(struct i40e_pf *pf) | |
6667 | { | |
6668 | struct i40e_driver_version dv; | |
6669 | ||
6670 | dv.major_version = DRV_VERSION_MAJOR; | |
6671 | dv.minor_version = DRV_VERSION_MINOR; | |
6672 | dv.build_version = DRV_VERSION_BUILD; | |
6673 | dv.subbuild_version = 0; | |
35a7d804 | 6674 | strlcpy(dv.driver_string, DRV_VERSION, sizeof(dv.driver_string)); |
44033fac JB |
6675 | i40e_aq_send_driver_version(&pf->hw, &dv, NULL); |
6676 | } | |
6677 | ||
f650a38b | 6678 | /** |
4dda12e6 | 6679 | * i40e_reset_and_rebuild - reset and rebuild using a saved config |
f650a38b | 6680 | * @pf: board private structure |
bc7d338f | 6681 | * @reinit: if the Main VSI needs to re-initialized. |
f650a38b | 6682 | **/ |
bc7d338f | 6683 | static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit) |
f650a38b | 6684 | { |
f650a38b | 6685 | struct i40e_hw *hw = &pf->hw; |
cafa2ee6 | 6686 | u8 set_fc_aq_fail = 0; |
f650a38b ASJ |
6687 | i40e_status ret; |
6688 | u32 v; | |
6689 | ||
41c445ff JB |
6690 | /* Now we wait for GRST to settle out. |
6691 | * We don't have to delete the VEBs or VSIs from the hw switch | |
6692 | * because the reset will make them disappear. | |
6693 | */ | |
6694 | ret = i40e_pf_reset(hw); | |
b5565400 | 6695 | if (ret) { |
41c445ff | 6696 | dev_info(&pf->pdev->dev, "PF reset failed, %d\n", ret); |
a316f651 ASJ |
6697 | set_bit(__I40E_RESET_FAILED, &pf->state); |
6698 | goto clear_recovery; | |
b5565400 | 6699 | } |
41c445ff JB |
6700 | pf->pfr_count++; |
6701 | ||
6702 | if (test_bit(__I40E_DOWN, &pf->state)) | |
a316f651 | 6703 | goto clear_recovery; |
69bfb110 | 6704 | dev_dbg(&pf->pdev->dev, "Rebuilding internal switch\n"); |
41c445ff JB |
6705 | |
6706 | /* rebuild the basics for the AdminQ, HMC, and initial HW switch */ | |
6707 | ret = i40e_init_adminq(&pf->hw); | |
6708 | if (ret) { | |
f1c7e72e SN |
6709 | dev_info(&pf->pdev->dev, "Rebuild AdminQ failed, err %s aq_err %s\n", |
6710 | i40e_stat_str(&pf->hw, ret), | |
6711 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
a316f651 | 6712 | goto clear_recovery; |
41c445ff JB |
6713 | } |
6714 | ||
4eb3f768 | 6715 | /* re-verify the eeprom if we just had an EMP reset */ |
9df42d1a | 6716 | if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED, &pf->state)) |
4eb3f768 | 6717 | i40e_verify_eeprom(pf); |
4eb3f768 | 6718 | |
e78ac4bf | 6719 | i40e_clear_pxe_mode(hw); |
41c445ff | 6720 | ret = i40e_get_capabilities(pf); |
f1c7e72e | 6721 | if (ret) |
41c445ff | 6722 | goto end_core_reset; |
41c445ff | 6723 | |
41c445ff JB |
6724 | ret = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp, |
6725 | hw->func_caps.num_rx_qp, | |
6726 | pf->fcoe_hmc_cntx_num, pf->fcoe_hmc_filt_num); | |
6727 | if (ret) { | |
6728 | dev_info(&pf->pdev->dev, "init_lan_hmc failed: %d\n", ret); | |
6729 | goto end_core_reset; | |
6730 | } | |
6731 | ret = i40e_configure_lan_hmc(hw, I40E_HMC_MODEL_DIRECT_ONLY); | |
6732 | if (ret) { | |
6733 | dev_info(&pf->pdev->dev, "configure_lan_hmc failed: %d\n", ret); | |
6734 | goto end_core_reset; | |
6735 | } | |
6736 | ||
4e3b35b0 NP |
6737 | #ifdef CONFIG_I40E_DCB |
6738 | ret = i40e_init_pf_dcb(pf); | |
6739 | if (ret) { | |
aebfc816 SN |
6740 | dev_info(&pf->pdev->dev, "DCB init failed %d, disabled\n", ret); |
6741 | pf->flags &= ~I40E_FLAG_DCB_CAPABLE; | |
6742 | /* Continue without DCB enabled */ | |
4e3b35b0 NP |
6743 | } |
6744 | #endif /* CONFIG_I40E_DCB */ | |
38e00438 | 6745 | #ifdef I40E_FCOE |
21364bcf | 6746 | i40e_init_pf_fcoe(pf); |
4e3b35b0 | 6747 | |
38e00438 | 6748 | #endif |
41c445ff | 6749 | /* do basic switch setup */ |
bc7d338f | 6750 | ret = i40e_setup_pf_switch(pf, reinit); |
41c445ff JB |
6751 | if (ret) |
6752 | goto end_core_reset; | |
6753 | ||
7e2453fe JB |
6754 | /* driver is only interested in link up/down and module qualification |
6755 | * reports from firmware | |
6756 | */ | |
6757 | ret = i40e_aq_set_phy_int_mask(&pf->hw, | |
6758 | I40E_AQ_EVENT_LINK_UPDOWN | | |
6759 | I40E_AQ_EVENT_MODULE_QUAL_FAIL, NULL); | |
6760 | if (ret) | |
f1c7e72e SN |
6761 | dev_info(&pf->pdev->dev, "set phy mask fail, err %s aq_err %s\n", |
6762 | i40e_stat_str(&pf->hw, ret), | |
6763 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
7e2453fe | 6764 | |
cafa2ee6 ASJ |
6765 | /* make sure our flow control settings are restored */ |
6766 | ret = i40e_set_fc(&pf->hw, &set_fc_aq_fail, true); | |
6767 | if (ret) | |
8279e495 NP |
6768 | dev_dbg(&pf->pdev->dev, "setting flow control: ret = %s last_status = %s\n", |
6769 | i40e_stat_str(&pf->hw, ret), | |
6770 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
cafa2ee6 | 6771 | |
41c445ff JB |
6772 | /* Rebuild the VSIs and VEBs that existed before reset. |
6773 | * They are still in our local switch element arrays, so only | |
6774 | * need to rebuild the switch model in the HW. | |
6775 | * | |
6776 | * If there were VEBs but the reconstitution failed, we'll try | |
6777 | * try to recover minimal use by getting the basic PF VSI working. | |
6778 | */ | |
6779 | if (pf->vsi[pf->lan_vsi]->uplink_seid != pf->mac_seid) { | |
69bfb110 | 6780 | dev_dbg(&pf->pdev->dev, "attempting to rebuild switch\n"); |
41c445ff JB |
6781 | /* find the one VEB connected to the MAC, and find orphans */ |
6782 | for (v = 0; v < I40E_MAX_VEB; v++) { | |
6783 | if (!pf->veb[v]) | |
6784 | continue; | |
6785 | ||
6786 | if (pf->veb[v]->uplink_seid == pf->mac_seid || | |
6787 | pf->veb[v]->uplink_seid == 0) { | |
6788 | ret = i40e_reconstitute_veb(pf->veb[v]); | |
6789 | ||
6790 | if (!ret) | |
6791 | continue; | |
6792 | ||
6793 | /* If Main VEB failed, we're in deep doodoo, | |
6794 | * so give up rebuilding the switch and set up | |
6795 | * for minimal rebuild of PF VSI. | |
6796 | * If orphan failed, we'll report the error | |
6797 | * but try to keep going. | |
6798 | */ | |
6799 | if (pf->veb[v]->uplink_seid == pf->mac_seid) { | |
6800 | dev_info(&pf->pdev->dev, | |
6801 | "rebuild of switch failed: %d, will try to set up simple PF connection\n", | |
6802 | ret); | |
6803 | pf->vsi[pf->lan_vsi]->uplink_seid | |
6804 | = pf->mac_seid; | |
6805 | break; | |
6806 | } else if (pf->veb[v]->uplink_seid == 0) { | |
6807 | dev_info(&pf->pdev->dev, | |
6808 | "rebuild of orphan VEB failed: %d\n", | |
6809 | ret); | |
6810 | } | |
6811 | } | |
6812 | } | |
6813 | } | |
6814 | ||
6815 | if (pf->vsi[pf->lan_vsi]->uplink_seid == pf->mac_seid) { | |
cde4cbc7 | 6816 | dev_dbg(&pf->pdev->dev, "attempting to rebuild PF VSI\n"); |
41c445ff JB |
6817 | /* no VEB, so rebuild only the Main VSI */ |
6818 | ret = i40e_add_vsi(pf->vsi[pf->lan_vsi]); | |
6819 | if (ret) { | |
6820 | dev_info(&pf->pdev->dev, | |
6821 | "rebuild of Main VSI failed: %d\n", ret); | |
6822 | goto end_core_reset; | |
6823 | } | |
6824 | } | |
6825 | ||
025b4a54 ASJ |
6826 | if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) || |
6827 | (pf->hw.aq.fw_maj_ver < 4)) { | |
6828 | msleep(75); | |
6829 | ret = i40e_aq_set_link_restart_an(&pf->hw, true, NULL); | |
6830 | if (ret) | |
f1c7e72e SN |
6831 | dev_info(&pf->pdev->dev, "link restart failed, err %s aq_err %s\n", |
6832 | i40e_stat_str(&pf->hw, ret), | |
6833 | i40e_aq_str(&pf->hw, | |
6834 | pf->hw.aq.asq_last_status)); | |
cafa2ee6 | 6835 | } |
41c445ff JB |
6836 | /* reinit the misc interrupt */ |
6837 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) | |
6838 | ret = i40e_setup_misc_vector(pf); | |
6839 | ||
e7358f54 ASJ |
6840 | /* Add a filter to drop all Flow control frames from any VSI from being |
6841 | * transmitted. By doing so we stop a malicious VF from sending out | |
6842 | * PAUSE or PFC frames and potentially controlling traffic for other | |
6843 | * PF/VF VSIs. | |
6844 | * The FW can still send Flow control frames if enabled. | |
6845 | */ | |
6846 | i40e_add_filter_to_drop_tx_flow_control_frames(&pf->hw, | |
6847 | pf->main_vsi_seid); | |
6848 | ||
41c445ff JB |
6849 | /* restart the VSIs that were rebuilt and running before the reset */ |
6850 | i40e_pf_unquiesce_all_vsi(pf); | |
6851 | ||
69f64b2b MW |
6852 | if (pf->num_alloc_vfs) { |
6853 | for (v = 0; v < pf->num_alloc_vfs; v++) | |
6854 | i40e_reset_vf(&pf->vf[v], true); | |
6855 | } | |
6856 | ||
41c445ff | 6857 | /* tell the firmware that we're starting */ |
44033fac | 6858 | i40e_send_version(pf); |
41c445ff JB |
6859 | |
6860 | end_core_reset: | |
a316f651 ASJ |
6861 | clear_bit(__I40E_RESET_FAILED, &pf->state); |
6862 | clear_recovery: | |
41c445ff JB |
6863 | clear_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state); |
6864 | } | |
6865 | ||
f650a38b | 6866 | /** |
b40c82e6 | 6867 | * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild |
f650a38b ASJ |
6868 | * @pf: board private structure |
6869 | * | |
6870 | * Close up the VFs and other things in prep for a Core Reset, | |
6871 | * then get ready to rebuild the world. | |
6872 | **/ | |
6873 | static void i40e_handle_reset_warning(struct i40e_pf *pf) | |
6874 | { | |
23cfbe07 SN |
6875 | i40e_prep_for_reset(pf); |
6876 | i40e_reset_and_rebuild(pf, false); | |
f650a38b ASJ |
6877 | } |
6878 | ||
41c445ff JB |
6879 | /** |
6880 | * i40e_handle_mdd_event | |
b40c82e6 | 6881 | * @pf: pointer to the PF structure |
41c445ff JB |
6882 | * |
6883 | * Called from the MDD irq handler to identify possibly malicious vfs | |
6884 | **/ | |
6885 | static void i40e_handle_mdd_event(struct i40e_pf *pf) | |
6886 | { | |
6887 | struct i40e_hw *hw = &pf->hw; | |
6888 | bool mdd_detected = false; | |
df430b12 | 6889 | bool pf_mdd_detected = false; |
41c445ff JB |
6890 | struct i40e_vf *vf; |
6891 | u32 reg; | |
6892 | int i; | |
6893 | ||
6894 | if (!test_bit(__I40E_MDD_EVENT_PENDING, &pf->state)) | |
6895 | return; | |
6896 | ||
6897 | /* find what triggered the MDD event */ | |
6898 | reg = rd32(hw, I40E_GL_MDET_TX); | |
6899 | if (reg & I40E_GL_MDET_TX_VALID_MASK) { | |
4c33f83a ASJ |
6900 | u8 pf_num = (reg & I40E_GL_MDET_TX_PF_NUM_MASK) >> |
6901 | I40E_GL_MDET_TX_PF_NUM_SHIFT; | |
2089ad03 | 6902 | u16 vf_num = (reg & I40E_GL_MDET_TX_VF_NUM_MASK) >> |
4c33f83a | 6903 | I40E_GL_MDET_TX_VF_NUM_SHIFT; |
013f6579 | 6904 | u8 event = (reg & I40E_GL_MDET_TX_EVENT_MASK) >> |
4c33f83a | 6905 | I40E_GL_MDET_TX_EVENT_SHIFT; |
2089ad03 MW |
6906 | u16 queue = ((reg & I40E_GL_MDET_TX_QUEUE_MASK) >> |
6907 | I40E_GL_MDET_TX_QUEUE_SHIFT) - | |
6908 | pf->hw.func_caps.base_queue; | |
faf32978 | 6909 | if (netif_msg_tx_err(pf)) |
b40c82e6 | 6910 | dev_info(&pf->pdev->dev, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n", |
faf32978 | 6911 | event, queue, pf_num, vf_num); |
41c445ff JB |
6912 | wr32(hw, I40E_GL_MDET_TX, 0xffffffff); |
6913 | mdd_detected = true; | |
6914 | } | |
6915 | reg = rd32(hw, I40E_GL_MDET_RX); | |
6916 | if (reg & I40E_GL_MDET_RX_VALID_MASK) { | |
4c33f83a ASJ |
6917 | u8 func = (reg & I40E_GL_MDET_RX_FUNCTION_MASK) >> |
6918 | I40E_GL_MDET_RX_FUNCTION_SHIFT; | |
013f6579 | 6919 | u8 event = (reg & I40E_GL_MDET_RX_EVENT_MASK) >> |
4c33f83a | 6920 | I40E_GL_MDET_RX_EVENT_SHIFT; |
2089ad03 MW |
6921 | u16 queue = ((reg & I40E_GL_MDET_RX_QUEUE_MASK) >> |
6922 | I40E_GL_MDET_RX_QUEUE_SHIFT) - | |
6923 | pf->hw.func_caps.base_queue; | |
faf32978 JB |
6924 | if (netif_msg_rx_err(pf)) |
6925 | dev_info(&pf->pdev->dev, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n", | |
6926 | event, queue, func); | |
41c445ff JB |
6927 | wr32(hw, I40E_GL_MDET_RX, 0xffffffff); |
6928 | mdd_detected = true; | |
6929 | } | |
6930 | ||
df430b12 NP |
6931 | if (mdd_detected) { |
6932 | reg = rd32(hw, I40E_PF_MDET_TX); | |
6933 | if (reg & I40E_PF_MDET_TX_VALID_MASK) { | |
6934 | wr32(hw, I40E_PF_MDET_TX, 0xFFFF); | |
faf32978 | 6935 | dev_info(&pf->pdev->dev, "TX driver issue detected, PF reset issued\n"); |
df430b12 NP |
6936 | pf_mdd_detected = true; |
6937 | } | |
6938 | reg = rd32(hw, I40E_PF_MDET_RX); | |
6939 | if (reg & I40E_PF_MDET_RX_VALID_MASK) { | |
6940 | wr32(hw, I40E_PF_MDET_RX, 0xFFFF); | |
faf32978 | 6941 | dev_info(&pf->pdev->dev, "RX driver issue detected, PF reset issued\n"); |
df430b12 NP |
6942 | pf_mdd_detected = true; |
6943 | } | |
6944 | /* Queue belongs to the PF, initiate a reset */ | |
6945 | if (pf_mdd_detected) { | |
6946 | set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); | |
6947 | i40e_service_event_schedule(pf); | |
6948 | } | |
6949 | } | |
6950 | ||
41c445ff JB |
6951 | /* see if one of the VFs needs its hand slapped */ |
6952 | for (i = 0; i < pf->num_alloc_vfs && mdd_detected; i++) { | |
6953 | vf = &(pf->vf[i]); | |
6954 | reg = rd32(hw, I40E_VP_MDET_TX(i)); | |
6955 | if (reg & I40E_VP_MDET_TX_VALID_MASK) { | |
6956 | wr32(hw, I40E_VP_MDET_TX(i), 0xFFFF); | |
6957 | vf->num_mdd_events++; | |
faf32978 JB |
6958 | dev_info(&pf->pdev->dev, "TX driver issue detected on VF %d\n", |
6959 | i); | |
41c445ff JB |
6960 | } |
6961 | ||
6962 | reg = rd32(hw, I40E_VP_MDET_RX(i)); | |
6963 | if (reg & I40E_VP_MDET_RX_VALID_MASK) { | |
6964 | wr32(hw, I40E_VP_MDET_RX(i), 0xFFFF); | |
6965 | vf->num_mdd_events++; | |
faf32978 JB |
6966 | dev_info(&pf->pdev->dev, "RX driver issue detected on VF %d\n", |
6967 | i); | |
41c445ff JB |
6968 | } |
6969 | ||
6970 | if (vf->num_mdd_events > I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED) { | |
6971 | dev_info(&pf->pdev->dev, | |
6972 | "Too many MDD events on VF %d, disabled\n", i); | |
6973 | dev_info(&pf->pdev->dev, | |
6974 | "Use PF Control I/F to re-enable the VF\n"); | |
6975 | set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); | |
6976 | } | |
6977 | } | |
6978 | ||
6979 | /* re-enable mdd interrupt cause */ | |
6980 | clear_bit(__I40E_MDD_EVENT_PENDING, &pf->state); | |
6981 | reg = rd32(hw, I40E_PFINT_ICR0_ENA); | |
6982 | reg |= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK; | |
6983 | wr32(hw, I40E_PFINT_ICR0_ENA, reg); | |
6984 | i40e_flush(hw); | |
6985 | } | |
6986 | ||
a1c9a9d9 JK |
6987 | #ifdef CONFIG_I40E_VXLAN |
6988 | /** | |
6989 | * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW | |
6990 | * @pf: board private structure | |
6991 | **/ | |
6992 | static void i40e_sync_vxlan_filters_subtask(struct i40e_pf *pf) | |
6993 | { | |
a1c9a9d9 JK |
6994 | struct i40e_hw *hw = &pf->hw; |
6995 | i40e_status ret; | |
a1c9a9d9 JK |
6996 | __be16 port; |
6997 | int i; | |
6998 | ||
6999 | if (!(pf->flags & I40E_FLAG_VXLAN_FILTER_SYNC)) | |
7000 | return; | |
7001 | ||
7002 | pf->flags &= ~I40E_FLAG_VXLAN_FILTER_SYNC; | |
7003 | ||
7004 | for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) { | |
41a1d04b JB |
7005 | if (pf->pending_vxlan_bitmap & BIT_ULL(i)) { |
7006 | pf->pending_vxlan_bitmap &= ~BIT_ULL(i); | |
a1c9a9d9 | 7007 | port = pf->vxlan_ports[i]; |
c22c06c8 SN |
7008 | if (port) |
7009 | ret = i40e_aq_add_udp_tunnel(hw, ntohs(port), | |
a1c9a9d9 | 7010 | I40E_AQC_TUNNEL_TYPE_VXLAN, |
c22c06c8 SN |
7011 | NULL, NULL); |
7012 | else | |
7013 | ret = i40e_aq_del_udp_tunnel(hw, i, NULL); | |
a1c9a9d9 JK |
7014 | |
7015 | if (ret) { | |
c22c06c8 | 7016 | dev_info(&pf->pdev->dev, |
f1c7e72e | 7017 | "%s vxlan port %d, index %d failed, err %s aq_err %s\n", |
c22c06c8 | 7018 | port ? "add" : "delete", |
f1c7e72e SN |
7019 | ntohs(port), i, |
7020 | i40e_stat_str(&pf->hw, ret), | |
7021 | i40e_aq_str(&pf->hw, | |
7022 | pf->hw.aq.asq_last_status)); | |
a1c9a9d9 | 7023 | pf->vxlan_ports[i] = 0; |
a1c9a9d9 JK |
7024 | } |
7025 | } | |
7026 | } | |
7027 | } | |
7028 | ||
7029 | #endif | |
41c445ff JB |
7030 | /** |
7031 | * i40e_service_task - Run the driver's async subtasks | |
7032 | * @work: pointer to work_struct containing our data | |
7033 | **/ | |
7034 | static void i40e_service_task(struct work_struct *work) | |
7035 | { | |
7036 | struct i40e_pf *pf = container_of(work, | |
7037 | struct i40e_pf, | |
7038 | service_task); | |
7039 | unsigned long start_time = jiffies; | |
7040 | ||
e57a2fea SN |
7041 | /* don't bother with service tasks if a reset is in progress */ |
7042 | if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state)) { | |
7043 | i40e_service_event_complete(pf); | |
7044 | return; | |
7045 | } | |
7046 | ||
b03a8c1f | 7047 | i40e_detect_recover_hung(pf); |
41c445ff JB |
7048 | i40e_reset_subtask(pf); |
7049 | i40e_handle_mdd_event(pf); | |
7050 | i40e_vc_process_vflr_event(pf); | |
7051 | i40e_watchdog_subtask(pf); | |
7052 | i40e_fdir_reinit_subtask(pf); | |
41c445ff | 7053 | i40e_sync_filters_subtask(pf); |
a1c9a9d9 JK |
7054 | #ifdef CONFIG_I40E_VXLAN |
7055 | i40e_sync_vxlan_filters_subtask(pf); | |
7056 | #endif | |
41c445ff JB |
7057 | i40e_clean_adminq_subtask(pf); |
7058 | ||
7059 | i40e_service_event_complete(pf); | |
7060 | ||
7061 | /* If the tasks have taken longer than one timer cycle or there | |
7062 | * is more work to be done, reschedule the service task now | |
7063 | * rather than wait for the timer to tick again. | |
7064 | */ | |
7065 | if (time_after(jiffies, (start_time + pf->service_timer_period)) || | |
7066 | test_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state) || | |
7067 | test_bit(__I40E_MDD_EVENT_PENDING, &pf->state) || | |
7068 | test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state)) | |
7069 | i40e_service_event_schedule(pf); | |
7070 | } | |
7071 | ||
7072 | /** | |
7073 | * i40e_service_timer - timer callback | |
7074 | * @data: pointer to PF struct | |
7075 | **/ | |
7076 | static void i40e_service_timer(unsigned long data) | |
7077 | { | |
7078 | struct i40e_pf *pf = (struct i40e_pf *)data; | |
7079 | ||
7080 | mod_timer(&pf->service_timer, | |
7081 | round_jiffies(jiffies + pf->service_timer_period)); | |
7082 | i40e_service_event_schedule(pf); | |
7083 | } | |
7084 | ||
7085 | /** | |
7086 | * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI | |
7087 | * @vsi: the VSI being configured | |
7088 | **/ | |
7089 | static int i40e_set_num_rings_in_vsi(struct i40e_vsi *vsi) | |
7090 | { | |
7091 | struct i40e_pf *pf = vsi->back; | |
7092 | ||
7093 | switch (vsi->type) { | |
7094 | case I40E_VSI_MAIN: | |
7095 | vsi->alloc_queue_pairs = pf->num_lan_qps; | |
7096 | vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS, | |
7097 | I40E_REQ_DESCRIPTOR_MULTIPLE); | |
7098 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) | |
7099 | vsi->num_q_vectors = pf->num_lan_msix; | |
7100 | else | |
7101 | vsi->num_q_vectors = 1; | |
7102 | ||
7103 | break; | |
7104 | ||
7105 | case I40E_VSI_FDIR: | |
7106 | vsi->alloc_queue_pairs = 1; | |
7107 | vsi->num_desc = ALIGN(I40E_FDIR_RING_COUNT, | |
7108 | I40E_REQ_DESCRIPTOR_MULTIPLE); | |
7109 | vsi->num_q_vectors = 1; | |
7110 | break; | |
7111 | ||
7112 | case I40E_VSI_VMDQ2: | |
7113 | vsi->alloc_queue_pairs = pf->num_vmdq_qps; | |
7114 | vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS, | |
7115 | I40E_REQ_DESCRIPTOR_MULTIPLE); | |
7116 | vsi->num_q_vectors = pf->num_vmdq_msix; | |
7117 | break; | |
7118 | ||
7119 | case I40E_VSI_SRIOV: | |
7120 | vsi->alloc_queue_pairs = pf->num_vf_qps; | |
7121 | vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS, | |
7122 | I40E_REQ_DESCRIPTOR_MULTIPLE); | |
7123 | break; | |
7124 | ||
38e00438 VD |
7125 | #ifdef I40E_FCOE |
7126 | case I40E_VSI_FCOE: | |
7127 | vsi->alloc_queue_pairs = pf->num_fcoe_qps; | |
7128 | vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS, | |
7129 | I40E_REQ_DESCRIPTOR_MULTIPLE); | |
7130 | vsi->num_q_vectors = pf->num_fcoe_msix; | |
7131 | break; | |
7132 | ||
7133 | #endif /* I40E_FCOE */ | |
41c445ff JB |
7134 | default: |
7135 | WARN_ON(1); | |
7136 | return -ENODATA; | |
7137 | } | |
7138 | ||
7139 | return 0; | |
7140 | } | |
7141 | ||
f650a38b ASJ |
7142 | /** |
7143 | * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi | |
7144 | * @type: VSI pointer | |
bc7d338f | 7145 | * @alloc_qvectors: a bool to specify if q_vectors need to be allocated. |
f650a38b ASJ |
7146 | * |
7147 | * On error: returns error code (negative) | |
7148 | * On success: returns 0 | |
7149 | **/ | |
bc7d338f | 7150 | static int i40e_vsi_alloc_arrays(struct i40e_vsi *vsi, bool alloc_qvectors) |
f650a38b ASJ |
7151 | { |
7152 | int size; | |
7153 | int ret = 0; | |
7154 | ||
ac6c5e3d | 7155 | /* allocate memory for both Tx and Rx ring pointers */ |
f650a38b ASJ |
7156 | size = sizeof(struct i40e_ring *) * vsi->alloc_queue_pairs * 2; |
7157 | vsi->tx_rings = kzalloc(size, GFP_KERNEL); | |
7158 | if (!vsi->tx_rings) | |
7159 | return -ENOMEM; | |
f650a38b ASJ |
7160 | vsi->rx_rings = &vsi->tx_rings[vsi->alloc_queue_pairs]; |
7161 | ||
bc7d338f ASJ |
7162 | if (alloc_qvectors) { |
7163 | /* allocate memory for q_vector pointers */ | |
f57e4fbd | 7164 | size = sizeof(struct i40e_q_vector *) * vsi->num_q_vectors; |
bc7d338f ASJ |
7165 | vsi->q_vectors = kzalloc(size, GFP_KERNEL); |
7166 | if (!vsi->q_vectors) { | |
7167 | ret = -ENOMEM; | |
7168 | goto err_vectors; | |
7169 | } | |
f650a38b ASJ |
7170 | } |
7171 | return ret; | |
7172 | ||
7173 | err_vectors: | |
7174 | kfree(vsi->tx_rings); | |
7175 | return ret; | |
7176 | } | |
7177 | ||
41c445ff JB |
7178 | /** |
7179 | * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF | |
7180 | * @pf: board private structure | |
7181 | * @type: type of VSI | |
7182 | * | |
7183 | * On error: returns error code (negative) | |
7184 | * On success: returns vsi index in PF (positive) | |
7185 | **/ | |
7186 | static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type) | |
7187 | { | |
7188 | int ret = -ENODEV; | |
7189 | struct i40e_vsi *vsi; | |
7190 | int vsi_idx; | |
7191 | int i; | |
7192 | ||
7193 | /* Need to protect the allocation of the VSIs at the PF level */ | |
7194 | mutex_lock(&pf->switch_mutex); | |
7195 | ||
7196 | /* VSI list may be fragmented if VSI creation/destruction has | |
7197 | * been happening. We can afford to do a quick scan to look | |
7198 | * for any free VSIs in the list. | |
7199 | * | |
7200 | * find next empty vsi slot, looping back around if necessary | |
7201 | */ | |
7202 | i = pf->next_vsi; | |
505682cd | 7203 | while (i < pf->num_alloc_vsi && pf->vsi[i]) |
41c445ff | 7204 | i++; |
505682cd | 7205 | if (i >= pf->num_alloc_vsi) { |
41c445ff JB |
7206 | i = 0; |
7207 | while (i < pf->next_vsi && pf->vsi[i]) | |
7208 | i++; | |
7209 | } | |
7210 | ||
505682cd | 7211 | if (i < pf->num_alloc_vsi && !pf->vsi[i]) { |
41c445ff JB |
7212 | vsi_idx = i; /* Found one! */ |
7213 | } else { | |
7214 | ret = -ENODEV; | |
493fb300 | 7215 | goto unlock_pf; /* out of VSI slots! */ |
41c445ff JB |
7216 | } |
7217 | pf->next_vsi = ++i; | |
7218 | ||
7219 | vsi = kzalloc(sizeof(*vsi), GFP_KERNEL); | |
7220 | if (!vsi) { | |
7221 | ret = -ENOMEM; | |
493fb300 | 7222 | goto unlock_pf; |
41c445ff JB |
7223 | } |
7224 | vsi->type = type; | |
7225 | vsi->back = pf; | |
7226 | set_bit(__I40E_DOWN, &vsi->state); | |
7227 | vsi->flags = 0; | |
7228 | vsi->idx = vsi_idx; | |
7229 | vsi->rx_itr_setting = pf->rx_itr_default; | |
7230 | vsi->tx_itr_setting = pf->tx_itr_default; | |
ac26fc13 | 7231 | vsi->int_rate_limit = 0; |
5db4cb59 ASJ |
7232 | vsi->rss_table_size = (vsi->type == I40E_VSI_MAIN) ? |
7233 | pf->rss_table_size : 64; | |
41c445ff JB |
7234 | vsi->netdev_registered = false; |
7235 | vsi->work_limit = I40E_DEFAULT_IRQ_WORK; | |
7236 | INIT_LIST_HEAD(&vsi->mac_filter_list); | |
63741846 | 7237 | vsi->irqs_ready = false; |
41c445ff | 7238 | |
9f65e15b AD |
7239 | ret = i40e_set_num_rings_in_vsi(vsi); |
7240 | if (ret) | |
7241 | goto err_rings; | |
7242 | ||
bc7d338f | 7243 | ret = i40e_vsi_alloc_arrays(vsi, true); |
f650a38b | 7244 | if (ret) |
9f65e15b | 7245 | goto err_rings; |
493fb300 | 7246 | |
41c445ff JB |
7247 | /* Setup default MSIX irq handler for VSI */ |
7248 | i40e_vsi_setup_irqhandler(vsi, i40e_msix_clean_rings); | |
7249 | ||
21659035 KP |
7250 | /* Initialize VSI lock */ |
7251 | spin_lock_init(&vsi->mac_filter_list_lock); | |
41c445ff JB |
7252 | pf->vsi[vsi_idx] = vsi; |
7253 | ret = vsi_idx; | |
493fb300 AD |
7254 | goto unlock_pf; |
7255 | ||
9f65e15b | 7256 | err_rings: |
493fb300 AD |
7257 | pf->next_vsi = i - 1; |
7258 | kfree(vsi); | |
7259 | unlock_pf: | |
41c445ff JB |
7260 | mutex_unlock(&pf->switch_mutex); |
7261 | return ret; | |
7262 | } | |
7263 | ||
f650a38b ASJ |
7264 | /** |
7265 | * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI | |
7266 | * @type: VSI pointer | |
bc7d338f | 7267 | * @free_qvectors: a bool to specify if q_vectors need to be freed. |
f650a38b ASJ |
7268 | * |
7269 | * On error: returns error code (negative) | |
7270 | * On success: returns 0 | |
7271 | **/ | |
bc7d338f | 7272 | static void i40e_vsi_free_arrays(struct i40e_vsi *vsi, bool free_qvectors) |
f650a38b ASJ |
7273 | { |
7274 | /* free the ring and vector containers */ | |
bc7d338f ASJ |
7275 | if (free_qvectors) { |
7276 | kfree(vsi->q_vectors); | |
7277 | vsi->q_vectors = NULL; | |
7278 | } | |
f650a38b ASJ |
7279 | kfree(vsi->tx_rings); |
7280 | vsi->tx_rings = NULL; | |
7281 | vsi->rx_rings = NULL; | |
7282 | } | |
7283 | ||
41c445ff JB |
7284 | /** |
7285 | * i40e_vsi_clear - Deallocate the VSI provided | |
7286 | * @vsi: the VSI being un-configured | |
7287 | **/ | |
7288 | static int i40e_vsi_clear(struct i40e_vsi *vsi) | |
7289 | { | |
7290 | struct i40e_pf *pf; | |
7291 | ||
7292 | if (!vsi) | |
7293 | return 0; | |
7294 | ||
7295 | if (!vsi->back) | |
7296 | goto free_vsi; | |
7297 | pf = vsi->back; | |
7298 | ||
7299 | mutex_lock(&pf->switch_mutex); | |
7300 | if (!pf->vsi[vsi->idx]) { | |
7301 | dev_err(&pf->pdev->dev, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n", | |
7302 | vsi->idx, vsi->idx, vsi, vsi->type); | |
7303 | goto unlock_vsi; | |
7304 | } | |
7305 | ||
7306 | if (pf->vsi[vsi->idx] != vsi) { | |
7307 | dev_err(&pf->pdev->dev, | |
7308 | "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n", | |
7309 | pf->vsi[vsi->idx]->idx, | |
7310 | pf->vsi[vsi->idx], | |
7311 | pf->vsi[vsi->idx]->type, | |
7312 | vsi->idx, vsi, vsi->type); | |
7313 | goto unlock_vsi; | |
7314 | } | |
7315 | ||
b40c82e6 | 7316 | /* updates the PF for this cleared vsi */ |
41c445ff JB |
7317 | i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx); |
7318 | i40e_put_lump(pf->irq_pile, vsi->base_vector, vsi->idx); | |
7319 | ||
bc7d338f | 7320 | i40e_vsi_free_arrays(vsi, true); |
493fb300 | 7321 | |
41c445ff JB |
7322 | pf->vsi[vsi->idx] = NULL; |
7323 | if (vsi->idx < pf->next_vsi) | |
7324 | pf->next_vsi = vsi->idx; | |
7325 | ||
7326 | unlock_vsi: | |
7327 | mutex_unlock(&pf->switch_mutex); | |
7328 | free_vsi: | |
7329 | kfree(vsi); | |
7330 | ||
7331 | return 0; | |
7332 | } | |
7333 | ||
9f65e15b AD |
7334 | /** |
7335 | * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI | |
7336 | * @vsi: the VSI being cleaned | |
7337 | **/ | |
be1d5eea | 7338 | static void i40e_vsi_clear_rings(struct i40e_vsi *vsi) |
9f65e15b AD |
7339 | { |
7340 | int i; | |
7341 | ||
8e9dca53 | 7342 | if (vsi->tx_rings && vsi->tx_rings[0]) { |
d7397644 | 7343 | for (i = 0; i < vsi->alloc_queue_pairs; i++) { |
00403f04 MW |
7344 | kfree_rcu(vsi->tx_rings[i], rcu); |
7345 | vsi->tx_rings[i] = NULL; | |
7346 | vsi->rx_rings[i] = NULL; | |
7347 | } | |
be1d5eea | 7348 | } |
9f65e15b AD |
7349 | } |
7350 | ||
41c445ff JB |
7351 | /** |
7352 | * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI | |
7353 | * @vsi: the VSI being configured | |
7354 | **/ | |
7355 | static int i40e_alloc_rings(struct i40e_vsi *vsi) | |
7356 | { | |
e7046ee1 | 7357 | struct i40e_ring *tx_ring, *rx_ring; |
41c445ff | 7358 | struct i40e_pf *pf = vsi->back; |
41c445ff JB |
7359 | int i; |
7360 | ||
41c445ff | 7361 | /* Set basic values in the rings to be used later during open() */ |
d7397644 | 7362 | for (i = 0; i < vsi->alloc_queue_pairs; i++) { |
ac6c5e3d | 7363 | /* allocate space for both Tx and Rx in one shot */ |
9f65e15b AD |
7364 | tx_ring = kzalloc(sizeof(struct i40e_ring) * 2, GFP_KERNEL); |
7365 | if (!tx_ring) | |
7366 | goto err_out; | |
41c445ff JB |
7367 | |
7368 | tx_ring->queue_index = i; | |
7369 | tx_ring->reg_idx = vsi->base_queue + i; | |
7370 | tx_ring->ring_active = false; | |
7371 | tx_ring->vsi = vsi; | |
7372 | tx_ring->netdev = vsi->netdev; | |
7373 | tx_ring->dev = &pf->pdev->dev; | |
7374 | tx_ring->count = vsi->num_desc; | |
7375 | tx_ring->size = 0; | |
7376 | tx_ring->dcb_tc = 0; | |
8e0764b4 ASJ |
7377 | if (vsi->back->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) |
7378 | tx_ring->flags = I40E_TXR_FLAGS_WB_ON_ITR; | |
527274c7 ASJ |
7379 | if (vsi->back->flags & I40E_FLAG_OUTER_UDP_CSUM_CAPABLE) |
7380 | tx_ring->flags |= I40E_TXR_FLAGS_OUTER_UDP_CSUM; | |
9f65e15b | 7381 | vsi->tx_rings[i] = tx_ring; |
41c445ff | 7382 | |
9f65e15b | 7383 | rx_ring = &tx_ring[1]; |
41c445ff JB |
7384 | rx_ring->queue_index = i; |
7385 | rx_ring->reg_idx = vsi->base_queue + i; | |
7386 | rx_ring->ring_active = false; | |
7387 | rx_ring->vsi = vsi; | |
7388 | rx_ring->netdev = vsi->netdev; | |
7389 | rx_ring->dev = &pf->pdev->dev; | |
7390 | rx_ring->count = vsi->num_desc; | |
7391 | rx_ring->size = 0; | |
7392 | rx_ring->dcb_tc = 0; | |
7393 | if (pf->flags & I40E_FLAG_16BYTE_RX_DESC_ENABLED) | |
7394 | set_ring_16byte_desc_enabled(rx_ring); | |
7395 | else | |
7396 | clear_ring_16byte_desc_enabled(rx_ring); | |
9f65e15b | 7397 | vsi->rx_rings[i] = rx_ring; |
41c445ff JB |
7398 | } |
7399 | ||
7400 | return 0; | |
9f65e15b AD |
7401 | |
7402 | err_out: | |
7403 | i40e_vsi_clear_rings(vsi); | |
7404 | return -ENOMEM; | |
41c445ff JB |
7405 | } |
7406 | ||
7407 | /** | |
7408 | * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel | |
7409 | * @pf: board private structure | |
7410 | * @vectors: the number of MSI-X vectors to request | |
7411 | * | |
7412 | * Returns the number of vectors reserved, or error | |
7413 | **/ | |
7414 | static int i40e_reserve_msix_vectors(struct i40e_pf *pf, int vectors) | |
7415 | { | |
7b37f376 AG |
7416 | vectors = pci_enable_msix_range(pf->pdev, pf->msix_entries, |
7417 | I40E_MIN_MSIX, vectors); | |
7418 | if (vectors < 0) { | |
41c445ff | 7419 | dev_info(&pf->pdev->dev, |
7b37f376 | 7420 | "MSI-X vector reservation failed: %d\n", vectors); |
41c445ff JB |
7421 | vectors = 0; |
7422 | } | |
7423 | ||
7424 | return vectors; | |
7425 | } | |
7426 | ||
7427 | /** | |
7428 | * i40e_init_msix - Setup the MSIX capability | |
7429 | * @pf: board private structure | |
7430 | * | |
7431 | * Work with the OS to set up the MSIX vectors needed. | |
7432 | * | |
3b444399 | 7433 | * Returns the number of vectors reserved or negative on failure |
41c445ff JB |
7434 | **/ |
7435 | static int i40e_init_msix(struct i40e_pf *pf) | |
7436 | { | |
41c445ff | 7437 | struct i40e_hw *hw = &pf->hw; |
1e200e4a | 7438 | int vectors_left; |
41c445ff | 7439 | int v_budget, i; |
3b444399 | 7440 | int v_actual; |
41c445ff JB |
7441 | |
7442 | if (!(pf->flags & I40E_FLAG_MSIX_ENABLED)) | |
7443 | return -ENODEV; | |
7444 | ||
7445 | /* The number of vectors we'll request will be comprised of: | |
7446 | * - Add 1 for "other" cause for Admin Queue events, etc. | |
7447 | * - The number of LAN queue pairs | |
f8ff1464 ASJ |
7448 | * - Queues being used for RSS. |
7449 | * We don't need as many as max_rss_size vectors. | |
7450 | * use rss_size instead in the calculation since that | |
7451 | * is governed by number of cpus in the system. | |
7452 | * - assumes symmetric Tx/Rx pairing | |
41c445ff | 7453 | * - The number of VMDq pairs |
38e00438 VD |
7454 | #ifdef I40E_FCOE |
7455 | * - The number of FCOE qps. | |
7456 | #endif | |
41c445ff JB |
7457 | * Once we count this up, try the request. |
7458 | * | |
7459 | * If we can't get what we want, we'll simplify to nearly nothing | |
7460 | * and try again. If that still fails, we punt. | |
7461 | */ | |
1e200e4a SN |
7462 | vectors_left = hw->func_caps.num_msix_vectors; |
7463 | v_budget = 0; | |
7464 | ||
7465 | /* reserve one vector for miscellaneous handler */ | |
7466 | if (vectors_left) { | |
7467 | v_budget++; | |
7468 | vectors_left--; | |
7469 | } | |
7470 | ||
7471 | /* reserve vectors for the main PF traffic queues */ | |
7472 | pf->num_lan_msix = min_t(int, num_online_cpus(), vectors_left); | |
7473 | vectors_left -= pf->num_lan_msix; | |
7474 | v_budget += pf->num_lan_msix; | |
7475 | ||
7476 | /* reserve one vector for sideband flow director */ | |
7477 | if (pf->flags & I40E_FLAG_FD_SB_ENABLED) { | |
7478 | if (vectors_left) { | |
7479 | v_budget++; | |
7480 | vectors_left--; | |
7481 | } else { | |
7482 | pf->flags &= ~I40E_FLAG_FD_SB_ENABLED; | |
7483 | } | |
7484 | } | |
83840e4b | 7485 | |
38e00438 | 7486 | #ifdef I40E_FCOE |
1e200e4a | 7487 | /* can we reserve enough for FCoE? */ |
38e00438 | 7488 | if (pf->flags & I40E_FLAG_FCOE_ENABLED) { |
1e200e4a SN |
7489 | if (!vectors_left) |
7490 | pf->num_fcoe_msix = 0; | |
7491 | else if (vectors_left >= pf->num_fcoe_qps) | |
7492 | pf->num_fcoe_msix = pf->num_fcoe_qps; | |
7493 | else | |
7494 | pf->num_fcoe_msix = 1; | |
38e00438 | 7495 | v_budget += pf->num_fcoe_msix; |
1e200e4a | 7496 | vectors_left -= pf->num_fcoe_msix; |
38e00438 | 7497 | } |
1e200e4a | 7498 | |
38e00438 | 7499 | #endif |
1e200e4a SN |
7500 | /* any vectors left over go for VMDq support */ |
7501 | if (pf->flags & I40E_FLAG_VMDQ_ENABLED) { | |
7502 | int vmdq_vecs_wanted = pf->num_vmdq_vsis * pf->num_vmdq_qps; | |
7503 | int vmdq_vecs = min_t(int, vectors_left, vmdq_vecs_wanted); | |
7504 | ||
7505 | /* if we're short on vectors for what's desired, we limit | |
7506 | * the queues per vmdq. If this is still more than are | |
7507 | * available, the user will need to change the number of | |
7508 | * queues/vectors used by the PF later with the ethtool | |
7509 | * channels command | |
7510 | */ | |
7511 | if (vmdq_vecs < vmdq_vecs_wanted) | |
7512 | pf->num_vmdq_qps = 1; | |
7513 | pf->num_vmdq_msix = pf->num_vmdq_qps; | |
7514 | ||
7515 | v_budget += vmdq_vecs; | |
7516 | vectors_left -= vmdq_vecs; | |
7517 | } | |
41c445ff JB |
7518 | |
7519 | pf->msix_entries = kcalloc(v_budget, sizeof(struct msix_entry), | |
7520 | GFP_KERNEL); | |
7521 | if (!pf->msix_entries) | |
7522 | return -ENOMEM; | |
7523 | ||
7524 | for (i = 0; i < v_budget; i++) | |
7525 | pf->msix_entries[i].entry = i; | |
3b444399 | 7526 | v_actual = i40e_reserve_msix_vectors(pf, v_budget); |
a34977ba | 7527 | |
3b444399 | 7528 | if (v_actual != v_budget) { |
a34977ba ASJ |
7529 | /* If we have limited resources, we will start with no vectors |
7530 | * for the special features and then allocate vectors to some | |
7531 | * of these features based on the policy and at the end disable | |
7532 | * the features that did not get any vectors. | |
7533 | */ | |
38e00438 VD |
7534 | #ifdef I40E_FCOE |
7535 | pf->num_fcoe_qps = 0; | |
7536 | pf->num_fcoe_msix = 0; | |
7537 | #endif | |
a34977ba ASJ |
7538 | pf->num_vmdq_msix = 0; |
7539 | } | |
7540 | ||
3b444399 | 7541 | if (v_actual < I40E_MIN_MSIX) { |
41c445ff JB |
7542 | pf->flags &= ~I40E_FLAG_MSIX_ENABLED; |
7543 | kfree(pf->msix_entries); | |
7544 | pf->msix_entries = NULL; | |
7545 | return -ENODEV; | |
7546 | ||
3b444399 | 7547 | } else if (v_actual == I40E_MIN_MSIX) { |
41c445ff | 7548 | /* Adjust for minimal MSIX use */ |
41c445ff JB |
7549 | pf->num_vmdq_vsis = 0; |
7550 | pf->num_vmdq_qps = 0; | |
41c445ff JB |
7551 | pf->num_lan_qps = 1; |
7552 | pf->num_lan_msix = 1; | |
7553 | ||
3b444399 SN |
7554 | } else if (v_actual != v_budget) { |
7555 | int vec; | |
7556 | ||
a34977ba | 7557 | /* reserve the misc vector */ |
3b444399 | 7558 | vec = v_actual - 1; |
a34977ba | 7559 | |
41c445ff JB |
7560 | /* Scale vector usage down */ |
7561 | pf->num_vmdq_msix = 1; /* force VMDqs to only one vector */ | |
a34977ba | 7562 | pf->num_vmdq_vsis = 1; |
1e200e4a SN |
7563 | pf->num_vmdq_qps = 1; |
7564 | pf->flags &= ~I40E_FLAG_FD_SB_ENABLED; | |
41c445ff JB |
7565 | |
7566 | /* partition out the remaining vectors */ | |
7567 | switch (vec) { | |
7568 | case 2: | |
41c445ff JB |
7569 | pf->num_lan_msix = 1; |
7570 | break; | |
7571 | case 3: | |
38e00438 VD |
7572 | #ifdef I40E_FCOE |
7573 | /* give one vector to FCoE */ | |
7574 | if (pf->flags & I40E_FLAG_FCOE_ENABLED) { | |
7575 | pf->num_lan_msix = 1; | |
7576 | pf->num_fcoe_msix = 1; | |
7577 | } | |
7578 | #else | |
41c445ff | 7579 | pf->num_lan_msix = 2; |
38e00438 | 7580 | #endif |
41c445ff JB |
7581 | break; |
7582 | default: | |
38e00438 VD |
7583 | #ifdef I40E_FCOE |
7584 | /* give one vector to FCoE */ | |
7585 | if (pf->flags & I40E_FLAG_FCOE_ENABLED) { | |
7586 | pf->num_fcoe_msix = 1; | |
7587 | vec--; | |
7588 | } | |
7589 | #endif | |
1e200e4a SN |
7590 | /* give the rest to the PF */ |
7591 | pf->num_lan_msix = min_t(int, vec, pf->num_lan_qps); | |
41c445ff JB |
7592 | break; |
7593 | } | |
7594 | } | |
7595 | ||
a34977ba ASJ |
7596 | if ((pf->flags & I40E_FLAG_VMDQ_ENABLED) && |
7597 | (pf->num_vmdq_msix == 0)) { | |
7598 | dev_info(&pf->pdev->dev, "VMDq disabled, not enough MSI-X vectors\n"); | |
7599 | pf->flags &= ~I40E_FLAG_VMDQ_ENABLED; | |
7600 | } | |
38e00438 VD |
7601 | #ifdef I40E_FCOE |
7602 | ||
7603 | if ((pf->flags & I40E_FLAG_FCOE_ENABLED) && (pf->num_fcoe_msix == 0)) { | |
7604 | dev_info(&pf->pdev->dev, "FCOE disabled, not enough MSI-X vectors\n"); | |
7605 | pf->flags &= ~I40E_FLAG_FCOE_ENABLED; | |
7606 | } | |
7607 | #endif | |
3b444399 | 7608 | return v_actual; |
41c445ff JB |
7609 | } |
7610 | ||
493fb300 | 7611 | /** |
90e04070 | 7612 | * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector |
493fb300 AD |
7613 | * @vsi: the VSI being configured |
7614 | * @v_idx: index of the vector in the vsi struct | |
7615 | * | |
7616 | * We allocate one q_vector. If allocation fails we return -ENOMEM. | |
7617 | **/ | |
90e04070 | 7618 | static int i40e_vsi_alloc_q_vector(struct i40e_vsi *vsi, int v_idx) |
493fb300 AD |
7619 | { |
7620 | struct i40e_q_vector *q_vector; | |
7621 | ||
7622 | /* allocate q_vector */ | |
7623 | q_vector = kzalloc(sizeof(struct i40e_q_vector), GFP_KERNEL); | |
7624 | if (!q_vector) | |
7625 | return -ENOMEM; | |
7626 | ||
7627 | q_vector->vsi = vsi; | |
7628 | q_vector->v_idx = v_idx; | |
7629 | cpumask_set_cpu(v_idx, &q_vector->affinity_mask); | |
7630 | if (vsi->netdev) | |
7631 | netif_napi_add(vsi->netdev, &q_vector->napi, | |
eefeacee | 7632 | i40e_napi_poll, NAPI_POLL_WEIGHT); |
493fb300 | 7633 | |
cd0b6fa6 AD |
7634 | q_vector->rx.latency_range = I40E_LOW_LATENCY; |
7635 | q_vector->tx.latency_range = I40E_LOW_LATENCY; | |
7636 | ||
493fb300 AD |
7637 | /* tie q_vector and vsi together */ |
7638 | vsi->q_vectors[v_idx] = q_vector; | |
7639 | ||
7640 | return 0; | |
7641 | } | |
7642 | ||
41c445ff | 7643 | /** |
90e04070 | 7644 | * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors |
41c445ff JB |
7645 | * @vsi: the VSI being configured |
7646 | * | |
7647 | * We allocate one q_vector per queue interrupt. If allocation fails we | |
7648 | * return -ENOMEM. | |
7649 | **/ | |
90e04070 | 7650 | static int i40e_vsi_alloc_q_vectors(struct i40e_vsi *vsi) |
41c445ff JB |
7651 | { |
7652 | struct i40e_pf *pf = vsi->back; | |
7653 | int v_idx, num_q_vectors; | |
493fb300 | 7654 | int err; |
41c445ff JB |
7655 | |
7656 | /* if not MSIX, give the one vector only to the LAN VSI */ | |
7657 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) | |
7658 | num_q_vectors = vsi->num_q_vectors; | |
7659 | else if (vsi == pf->vsi[pf->lan_vsi]) | |
7660 | num_q_vectors = 1; | |
7661 | else | |
7662 | return -EINVAL; | |
7663 | ||
41c445ff | 7664 | for (v_idx = 0; v_idx < num_q_vectors; v_idx++) { |
90e04070 | 7665 | err = i40e_vsi_alloc_q_vector(vsi, v_idx); |
493fb300 AD |
7666 | if (err) |
7667 | goto err_out; | |
41c445ff JB |
7668 | } |
7669 | ||
7670 | return 0; | |
493fb300 AD |
7671 | |
7672 | err_out: | |
7673 | while (v_idx--) | |
7674 | i40e_free_q_vector(vsi, v_idx); | |
7675 | ||
7676 | return err; | |
41c445ff JB |
7677 | } |
7678 | ||
7679 | /** | |
7680 | * i40e_init_interrupt_scheme - Determine proper interrupt scheme | |
7681 | * @pf: board private structure to initialize | |
7682 | **/ | |
c1147280 | 7683 | static int i40e_init_interrupt_scheme(struct i40e_pf *pf) |
41c445ff | 7684 | { |
3b444399 SN |
7685 | int vectors = 0; |
7686 | ssize_t size; | |
41c445ff JB |
7687 | |
7688 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { | |
3b444399 SN |
7689 | vectors = i40e_init_msix(pf); |
7690 | if (vectors < 0) { | |
60ea5f83 | 7691 | pf->flags &= ~(I40E_FLAG_MSIX_ENABLED | |
38e00438 VD |
7692 | #ifdef I40E_FCOE |
7693 | I40E_FLAG_FCOE_ENABLED | | |
7694 | #endif | |
60ea5f83 | 7695 | I40E_FLAG_RSS_ENABLED | |
4d9b6043 | 7696 | I40E_FLAG_DCB_CAPABLE | |
60ea5f83 JB |
7697 | I40E_FLAG_SRIOV_ENABLED | |
7698 | I40E_FLAG_FD_SB_ENABLED | | |
7699 | I40E_FLAG_FD_ATR_ENABLED | | |
7700 | I40E_FLAG_VMDQ_ENABLED); | |
41c445ff JB |
7701 | |
7702 | /* rework the queue expectations without MSIX */ | |
7703 | i40e_determine_queue_usage(pf); | |
7704 | } | |
7705 | } | |
7706 | ||
7707 | if (!(pf->flags & I40E_FLAG_MSIX_ENABLED) && | |
7708 | (pf->flags & I40E_FLAG_MSI_ENABLED)) { | |
77fa28be | 7709 | dev_info(&pf->pdev->dev, "MSI-X not available, trying MSI\n"); |
3b444399 SN |
7710 | vectors = pci_enable_msi(pf->pdev); |
7711 | if (vectors < 0) { | |
7712 | dev_info(&pf->pdev->dev, "MSI init failed - %d\n", | |
7713 | vectors); | |
41c445ff JB |
7714 | pf->flags &= ~I40E_FLAG_MSI_ENABLED; |
7715 | } | |
3b444399 | 7716 | vectors = 1; /* one MSI or Legacy vector */ |
41c445ff JB |
7717 | } |
7718 | ||
958a3e3b | 7719 | if (!(pf->flags & (I40E_FLAG_MSIX_ENABLED | I40E_FLAG_MSI_ENABLED))) |
77fa28be | 7720 | dev_info(&pf->pdev->dev, "MSI-X and MSI not available, falling back to Legacy IRQ\n"); |
958a3e3b | 7721 | |
3b444399 SN |
7722 | /* set up vector assignment tracking */ |
7723 | size = sizeof(struct i40e_lump_tracking) + (sizeof(u16) * vectors); | |
7724 | pf->irq_pile = kzalloc(size, GFP_KERNEL); | |
c1147280 JB |
7725 | if (!pf->irq_pile) { |
7726 | dev_err(&pf->pdev->dev, "error allocating irq_pile memory\n"); | |
7727 | return -ENOMEM; | |
7728 | } | |
3b444399 SN |
7729 | pf->irq_pile->num_entries = vectors; |
7730 | pf->irq_pile->search_hint = 0; | |
7731 | ||
c1147280 | 7732 | /* track first vector for misc interrupts, ignore return */ |
3b444399 | 7733 | (void)i40e_get_lump(pf, pf->irq_pile, 1, I40E_PILE_VALID_BIT - 1); |
c1147280 JB |
7734 | |
7735 | return 0; | |
41c445ff JB |
7736 | } |
7737 | ||
7738 | /** | |
7739 | * i40e_setup_misc_vector - Setup the misc vector to handle non queue events | |
7740 | * @pf: board private structure | |
7741 | * | |
7742 | * This sets up the handler for MSIX 0, which is used to manage the | |
7743 | * non-queue interrupts, e.g. AdminQ and errors. This is not used | |
7744 | * when in MSI or Legacy interrupt mode. | |
7745 | **/ | |
7746 | static int i40e_setup_misc_vector(struct i40e_pf *pf) | |
7747 | { | |
7748 | struct i40e_hw *hw = &pf->hw; | |
7749 | int err = 0; | |
7750 | ||
7751 | /* Only request the irq if this is the first time through, and | |
7752 | * not when we're rebuilding after a Reset | |
7753 | */ | |
7754 | if (!test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state)) { | |
7755 | err = request_irq(pf->msix_entries[0].vector, | |
b294ac70 | 7756 | i40e_intr, 0, pf->int_name, pf); |
41c445ff JB |
7757 | if (err) { |
7758 | dev_info(&pf->pdev->dev, | |
77fa28be | 7759 | "request_irq for %s failed: %d\n", |
b294ac70 | 7760 | pf->int_name, err); |
41c445ff JB |
7761 | return -EFAULT; |
7762 | } | |
7763 | } | |
7764 | ||
ab437b5a | 7765 | i40e_enable_misc_int_causes(pf); |
41c445ff JB |
7766 | |
7767 | /* associate no queues to the misc vector */ | |
7768 | wr32(hw, I40E_PFINT_LNKLST0, I40E_QUEUE_END_OF_LIST); | |
7769 | wr32(hw, I40E_PFINT_ITR0(I40E_RX_ITR), I40E_ITR_8K); | |
7770 | ||
7771 | i40e_flush(hw); | |
7772 | ||
7773 | i40e_irq_dynamic_enable_icr0(pf); | |
7774 | ||
7775 | return err; | |
7776 | } | |
7777 | ||
7778 | /** | |
e25d00b8 ASJ |
7779 | * i40e_config_rss_aq - Prepare for RSS using AQ commands |
7780 | * @vsi: vsi structure | |
7781 | * @seed: RSS hash seed | |
7782 | **/ | |
7783 | static int i40e_config_rss_aq(struct i40e_vsi *vsi, const u8 *seed) | |
7784 | { | |
7785 | struct i40e_aqc_get_set_rss_key_data rss_key; | |
7786 | struct i40e_pf *pf = vsi->back; | |
7787 | struct i40e_hw *hw = &pf->hw; | |
7788 | bool pf_lut = false; | |
7789 | u8 *rss_lut; | |
7790 | int ret, i; | |
7791 | ||
7792 | memset(&rss_key, 0, sizeof(rss_key)); | |
7793 | memcpy(&rss_key, seed, sizeof(rss_key)); | |
7794 | ||
7795 | rss_lut = kzalloc(pf->rss_table_size, GFP_KERNEL); | |
7796 | if (!rss_lut) | |
7797 | return -ENOMEM; | |
7798 | ||
7799 | /* Populate the LUT with max no. of queues in round robin fashion */ | |
7800 | for (i = 0; i < vsi->rss_table_size; i++) | |
7801 | rss_lut[i] = i % vsi->rss_size; | |
7802 | ||
7803 | ret = i40e_aq_set_rss_key(hw, vsi->id, &rss_key); | |
7804 | if (ret) { | |
7805 | dev_info(&pf->pdev->dev, | |
7806 | "Cannot set RSS key, err %s aq_err %s\n", | |
7807 | i40e_stat_str(&pf->hw, ret), | |
7808 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
126b63d9 | 7809 | goto config_rss_aq_out; |
e25d00b8 ASJ |
7810 | } |
7811 | ||
7812 | if (vsi->type == I40E_VSI_MAIN) | |
7813 | pf_lut = true; | |
7814 | ||
7815 | ret = i40e_aq_set_rss_lut(hw, vsi->id, pf_lut, rss_lut, | |
7816 | vsi->rss_table_size); | |
7817 | if (ret) | |
7818 | dev_info(&pf->pdev->dev, | |
7819 | "Cannot set RSS lut, err %s aq_err %s\n", | |
7820 | i40e_stat_str(&pf->hw, ret), | |
7821 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
7822 | ||
126b63d9 AS |
7823 | config_rss_aq_out: |
7824 | kfree(rss_lut); | |
e25d00b8 ASJ |
7825 | return ret; |
7826 | } | |
7827 | ||
7828 | /** | |
7829 | * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used | |
7830 | * @vsi: VSI structure | |
7831 | **/ | |
7832 | static int i40e_vsi_config_rss(struct i40e_vsi *vsi) | |
7833 | { | |
7834 | u8 seed[I40E_HKEY_ARRAY_SIZE]; | |
7835 | struct i40e_pf *pf = vsi->back; | |
7836 | ||
7837 | netdev_rss_key_fill((void *)seed, I40E_HKEY_ARRAY_SIZE); | |
7838 | vsi->rss_size = min_t(int, pf->rss_size, vsi->num_queue_pairs); | |
7839 | ||
7840 | if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) | |
7841 | return i40e_config_rss_aq(vsi, seed); | |
7842 | ||
7843 | return 0; | |
7844 | } | |
7845 | ||
7846 | /** | |
7847 | * i40e_config_rss_reg - Prepare for RSS if used | |
41c445ff | 7848 | * @pf: board private structure |
e25d00b8 | 7849 | * @seed: RSS hash seed |
41c445ff | 7850 | **/ |
e25d00b8 | 7851 | static int i40e_config_rss_reg(struct i40e_pf *pf, const u8 *seed) |
41c445ff | 7852 | { |
66ddcffb | 7853 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
4617e8c0 | 7854 | struct i40e_hw *hw = &pf->hw; |
e25d00b8 ASJ |
7855 | u32 *seed_dw = (u32 *)seed; |
7856 | u32 current_queue = 0; | |
4617e8c0 ASJ |
7857 | u32 lut = 0; |
7858 | int i, j; | |
41c445ff | 7859 | |
e25d00b8 | 7860 | /* Fill out hash function seed */ |
41c445ff | 7861 | for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) |
e25d00b8 ASJ |
7862 | wr32(hw, I40E_PFQF_HKEY(i), seed_dw[i]); |
7863 | ||
7864 | for (i = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) { | |
7865 | lut = 0; | |
7866 | for (j = 0; j < 4; j++) { | |
7867 | if (current_queue == vsi->rss_size) | |
7868 | current_queue = 0; | |
7869 | lut |= ((current_queue) << (8 * j)); | |
7870 | current_queue++; | |
7871 | } | |
7872 | wr32(&pf->hw, I40E_PFQF_HLUT(i), lut); | |
7873 | } | |
7874 | i40e_flush(hw); | |
7875 | ||
7876 | return 0; | |
7877 | } | |
7878 | ||
7879 | /** | |
7880 | * i40e_config_rss - Prepare for RSS if used | |
7881 | * @pf: board private structure | |
7882 | **/ | |
7883 | static int i40e_config_rss(struct i40e_pf *pf) | |
7884 | { | |
7885 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; | |
7886 | u8 seed[I40E_HKEY_ARRAY_SIZE]; | |
7887 | struct i40e_hw *hw = &pf->hw; | |
7888 | u32 reg_val; | |
7889 | u64 hena; | |
7890 | ||
7891 | netdev_rss_key_fill((void *)seed, I40E_HKEY_ARRAY_SIZE); | |
41c445ff JB |
7892 | |
7893 | /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */ | |
7894 | hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) | | |
7895 | ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32); | |
e25d00b8 ASJ |
7896 | hena |= i40e_pf_get_default_rss_hena(pf); |
7897 | ||
41c445ff JB |
7898 | wr32(hw, I40E_PFQF_HENA(0), (u32)hena); |
7899 | wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); | |
7900 | ||
66ddcffb ASJ |
7901 | vsi->rss_size = min_t(int, pf->rss_size, vsi->num_queue_pairs); |
7902 | ||
e25d00b8 | 7903 | /* Determine the RSS table size based on the hardware capabilities */ |
e157ea30 | 7904 | reg_val = rd32(hw, I40E_PFQF_CTL_0); |
e25d00b8 ASJ |
7905 | reg_val = (pf->rss_table_size == 512) ? |
7906 | (reg_val | I40E_PFQF_CTL_0_HASHLUTSIZE_512) : | |
7907 | (reg_val & ~I40E_PFQF_CTL_0_HASHLUTSIZE_512); | |
e157ea30 CW |
7908 | wr32(hw, I40E_PFQF_CTL_0, reg_val); |
7909 | ||
e25d00b8 ASJ |
7910 | if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) |
7911 | return i40e_config_rss_aq(pf->vsi[pf->lan_vsi], seed); | |
7912 | else | |
7913 | return i40e_config_rss_reg(pf, seed); | |
41c445ff JB |
7914 | } |
7915 | ||
f8ff1464 ASJ |
7916 | /** |
7917 | * i40e_reconfig_rss_queues - change number of queues for rss and rebuild | |
7918 | * @pf: board private structure | |
7919 | * @queue_count: the requested queue count for rss. | |
7920 | * | |
7921 | * returns 0 if rss is not enabled, if enabled returns the final rss queue | |
7922 | * count which may be different from the requested queue count. | |
7923 | **/ | |
7924 | int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count) | |
7925 | { | |
9a3bd2f1 ASJ |
7926 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
7927 | int new_rss_size; | |
7928 | ||
f8ff1464 ASJ |
7929 | if (!(pf->flags & I40E_FLAG_RSS_ENABLED)) |
7930 | return 0; | |
7931 | ||
9a3bd2f1 | 7932 | new_rss_size = min_t(int, queue_count, pf->rss_size_max); |
f8ff1464 | 7933 | |
9a3bd2f1 ASJ |
7934 | if (queue_count != vsi->num_queue_pairs) { |
7935 | vsi->req_queue_pairs = queue_count; | |
f8ff1464 ASJ |
7936 | i40e_prep_for_reset(pf); |
7937 | ||
9a3bd2f1 | 7938 | pf->rss_size = new_rss_size; |
f8ff1464 ASJ |
7939 | |
7940 | i40e_reset_and_rebuild(pf, true); | |
7941 | i40e_config_rss(pf); | |
7942 | } | |
7943 | dev_info(&pf->pdev->dev, "RSS count: %d\n", pf->rss_size); | |
7944 | return pf->rss_size; | |
7945 | } | |
7946 | ||
f4492db1 GR |
7947 | /** |
7948 | * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition | |
7949 | * @pf: board private structure | |
7950 | **/ | |
7951 | i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf) | |
7952 | { | |
7953 | i40e_status status; | |
7954 | bool min_valid, max_valid; | |
7955 | u32 max_bw, min_bw; | |
7956 | ||
7957 | status = i40e_read_bw_from_alt_ram(&pf->hw, &max_bw, &min_bw, | |
7958 | &min_valid, &max_valid); | |
7959 | ||
7960 | if (!status) { | |
7961 | if (min_valid) | |
7962 | pf->npar_min_bw = min_bw; | |
7963 | if (max_valid) | |
7964 | pf->npar_max_bw = max_bw; | |
7965 | } | |
7966 | ||
7967 | return status; | |
7968 | } | |
7969 | ||
7970 | /** | |
7971 | * i40e_set_npar_bw_setting - Set BW settings for this PF partition | |
7972 | * @pf: board private structure | |
7973 | **/ | |
7974 | i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf) | |
7975 | { | |
7976 | struct i40e_aqc_configure_partition_bw_data bw_data; | |
7977 | i40e_status status; | |
7978 | ||
b40c82e6 | 7979 | /* Set the valid bit for this PF */ |
41a1d04b | 7980 | bw_data.pf_valid_bits = cpu_to_le16(BIT(pf->hw.pf_id)); |
f4492db1 GR |
7981 | bw_data.max_bw[pf->hw.pf_id] = pf->npar_max_bw & I40E_ALT_BW_VALUE_MASK; |
7982 | bw_data.min_bw[pf->hw.pf_id] = pf->npar_min_bw & I40E_ALT_BW_VALUE_MASK; | |
7983 | ||
7984 | /* Set the new bandwidths */ | |
7985 | status = i40e_aq_configure_partition_bw(&pf->hw, &bw_data, NULL); | |
7986 | ||
7987 | return status; | |
7988 | } | |
7989 | ||
7990 | /** | |
7991 | * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition | |
7992 | * @pf: board private structure | |
7993 | **/ | |
7994 | i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf) | |
7995 | { | |
7996 | /* Commit temporary BW setting to permanent NVM image */ | |
7997 | enum i40e_admin_queue_err last_aq_status; | |
7998 | i40e_status ret; | |
7999 | u16 nvm_word; | |
8000 | ||
8001 | if (pf->hw.partition_id != 1) { | |
8002 | dev_info(&pf->pdev->dev, | |
8003 | "Commit BW only works on partition 1! This is partition %d", | |
8004 | pf->hw.partition_id); | |
8005 | ret = I40E_NOT_SUPPORTED; | |
8006 | goto bw_commit_out; | |
8007 | } | |
8008 | ||
8009 | /* Acquire NVM for read access */ | |
8010 | ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ); | |
8011 | last_aq_status = pf->hw.aq.asq_last_status; | |
8012 | if (ret) { | |
8013 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
8014 | "Cannot acquire NVM for read access, err %s aq_err %s\n", |
8015 | i40e_stat_str(&pf->hw, ret), | |
8016 | i40e_aq_str(&pf->hw, last_aq_status)); | |
f4492db1 GR |
8017 | goto bw_commit_out; |
8018 | } | |
8019 | ||
8020 | /* Read word 0x10 of NVM - SW compatibility word 1 */ | |
8021 | ret = i40e_aq_read_nvm(&pf->hw, | |
8022 | I40E_SR_NVM_CONTROL_WORD, | |
8023 | 0x10, sizeof(nvm_word), &nvm_word, | |
8024 | false, NULL); | |
8025 | /* Save off last admin queue command status before releasing | |
8026 | * the NVM | |
8027 | */ | |
8028 | last_aq_status = pf->hw.aq.asq_last_status; | |
8029 | i40e_release_nvm(&pf->hw); | |
8030 | if (ret) { | |
f1c7e72e SN |
8031 | dev_info(&pf->pdev->dev, "NVM read error, err %s aq_err %s\n", |
8032 | i40e_stat_str(&pf->hw, ret), | |
8033 | i40e_aq_str(&pf->hw, last_aq_status)); | |
f4492db1 GR |
8034 | goto bw_commit_out; |
8035 | } | |
8036 | ||
8037 | /* Wait a bit for NVM release to complete */ | |
8038 | msleep(50); | |
8039 | ||
8040 | /* Acquire NVM for write access */ | |
8041 | ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_WRITE); | |
8042 | last_aq_status = pf->hw.aq.asq_last_status; | |
8043 | if (ret) { | |
8044 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
8045 | "Cannot acquire NVM for write access, err %s aq_err %s\n", |
8046 | i40e_stat_str(&pf->hw, ret), | |
8047 | i40e_aq_str(&pf->hw, last_aq_status)); | |
f4492db1 GR |
8048 | goto bw_commit_out; |
8049 | } | |
8050 | /* Write it back out unchanged to initiate update NVM, | |
8051 | * which will force a write of the shadow (alt) RAM to | |
8052 | * the NVM - thus storing the bandwidth values permanently. | |
8053 | */ | |
8054 | ret = i40e_aq_update_nvm(&pf->hw, | |
8055 | I40E_SR_NVM_CONTROL_WORD, | |
8056 | 0x10, sizeof(nvm_word), | |
8057 | &nvm_word, true, NULL); | |
8058 | /* Save off last admin queue command status before releasing | |
8059 | * the NVM | |
8060 | */ | |
8061 | last_aq_status = pf->hw.aq.asq_last_status; | |
8062 | i40e_release_nvm(&pf->hw); | |
8063 | if (ret) | |
8064 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
8065 | "BW settings NOT SAVED, err %s aq_err %s\n", |
8066 | i40e_stat_str(&pf->hw, ret), | |
8067 | i40e_aq_str(&pf->hw, last_aq_status)); | |
f4492db1 GR |
8068 | bw_commit_out: |
8069 | ||
8070 | return ret; | |
8071 | } | |
8072 | ||
41c445ff JB |
8073 | /** |
8074 | * i40e_sw_init - Initialize general software structures (struct i40e_pf) | |
8075 | * @pf: board private structure to initialize | |
8076 | * | |
8077 | * i40e_sw_init initializes the Adapter private data structure. | |
8078 | * Fields are initialized based on PCI device information and | |
8079 | * OS network device settings (MTU size). | |
8080 | **/ | |
8081 | static int i40e_sw_init(struct i40e_pf *pf) | |
8082 | { | |
8083 | int err = 0; | |
8084 | int size; | |
8085 | ||
8086 | pf->msg_enable = netif_msg_init(I40E_DEFAULT_MSG_ENABLE, | |
8087 | (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)); | |
2759997b | 8088 | pf->hw.debug_mask = pf->msg_enable | I40E_DEBUG_DIAG; |
41c445ff JB |
8089 | if (debug != -1 && debug != I40E_DEFAULT_MSG_ENABLE) { |
8090 | if (I40E_DEBUG_USER & debug) | |
8091 | pf->hw.debug_mask = debug; | |
8092 | pf->msg_enable = netif_msg_init((debug & ~I40E_DEBUG_USER), | |
8093 | I40E_DEFAULT_MSG_ENABLE); | |
8094 | } | |
8095 | ||
8096 | /* Set default capability flags */ | |
8097 | pf->flags = I40E_FLAG_RX_CSUM_ENABLED | | |
8098 | I40E_FLAG_MSI_ENABLED | | |
9ac77266 | 8099 | I40E_FLAG_LINK_POLLING_ENABLED | |
2bc7ee8a MW |
8100 | I40E_FLAG_MSIX_ENABLED; |
8101 | ||
8102 | if (iommu_present(&pci_bus_type)) | |
8103 | pf->flags |= I40E_FLAG_RX_PS_ENABLED; | |
8104 | else | |
8105 | pf->flags |= I40E_FLAG_RX_1BUF_ENABLED; | |
41c445ff | 8106 | |
ca99eb99 MW |
8107 | /* Set default ITR */ |
8108 | pf->rx_itr_default = I40E_ITR_DYNAMIC | I40E_ITR_RX_DEF; | |
8109 | pf->tx_itr_default = I40E_ITR_DYNAMIC | I40E_ITR_TX_DEF; | |
8110 | ||
7134f9ce JB |
8111 | /* Depending on PF configurations, it is possible that the RSS |
8112 | * maximum might end up larger than the available queues | |
8113 | */ | |
41a1d04b | 8114 | pf->rss_size_max = BIT(pf->hw.func_caps.rss_table_entry_width); |
ec9a7db7 | 8115 | pf->rss_size = 1; |
5db4cb59 | 8116 | pf->rss_table_size = pf->hw.func_caps.rss_table_size; |
7134f9ce JB |
8117 | pf->rss_size_max = min_t(int, pf->rss_size_max, |
8118 | pf->hw.func_caps.num_tx_qp); | |
41c445ff JB |
8119 | if (pf->hw.func_caps.rss) { |
8120 | pf->flags |= I40E_FLAG_RSS_ENABLED; | |
bf051a3b | 8121 | pf->rss_size = min_t(int, pf->rss_size_max, num_online_cpus()); |
41c445ff JB |
8122 | } |
8123 | ||
2050bc65 | 8124 | /* MFP mode enabled */ |
c78b953e | 8125 | if (pf->hw.func_caps.npar_enable || pf->hw.func_caps.flex10_enable) { |
2050bc65 CS |
8126 | pf->flags |= I40E_FLAG_MFP_ENABLED; |
8127 | dev_info(&pf->pdev->dev, "MFP mode Enabled\n"); | |
f4492db1 GR |
8128 | if (i40e_get_npar_bw_setting(pf)) |
8129 | dev_warn(&pf->pdev->dev, | |
8130 | "Could not get NPAR bw settings\n"); | |
8131 | else | |
8132 | dev_info(&pf->pdev->dev, | |
8133 | "Min BW = %8.8x, Max BW = %8.8x\n", | |
8134 | pf->npar_min_bw, pf->npar_max_bw); | |
2050bc65 CS |
8135 | } |
8136 | ||
cbf61325 ASJ |
8137 | /* FW/NVM is not yet fixed in this regard */ |
8138 | if ((pf->hw.func_caps.fd_filters_guaranteed > 0) || | |
8139 | (pf->hw.func_caps.fd_filters_best_effort > 0)) { | |
8140 | pf->flags |= I40E_FLAG_FD_ATR_ENABLED; | |
8141 | pf->atr_sample_rate = I40E_DEFAULT_ATR_SAMPLE_RATE; | |
6eae9c6a SN |
8142 | if (pf->flags & I40E_FLAG_MFP_ENABLED && |
8143 | pf->hw.num_partitions > 1) | |
cbf61325 | 8144 | dev_info(&pf->pdev->dev, |
0b67584f | 8145 | "Flow Director Sideband mode Disabled in MFP mode\n"); |
6eae9c6a SN |
8146 | else |
8147 | pf->flags |= I40E_FLAG_FD_SB_ENABLED; | |
cbf61325 ASJ |
8148 | pf->fdir_pf_filter_count = |
8149 | pf->hw.func_caps.fd_filters_guaranteed; | |
8150 | pf->hw.fdir_shared_filter_count = | |
8151 | pf->hw.func_caps.fd_filters_best_effort; | |
41c445ff JB |
8152 | } |
8153 | ||
8154 | if (pf->hw.func_caps.vmdq) { | |
41c445ff | 8155 | pf->num_vmdq_vsis = I40E_DEFAULT_NUM_VMDQ_VSI; |
e25d00b8 | 8156 | pf->flags |= I40E_FLAG_VMDQ_ENABLED; |
e9e53662 | 8157 | pf->num_vmdq_qps = i40e_default_queues_per_vmdq(pf); |
41c445ff JB |
8158 | } |
8159 | ||
38e00438 | 8160 | #ifdef I40E_FCOE |
21364bcf | 8161 | i40e_init_pf_fcoe(pf); |
38e00438 VD |
8162 | |
8163 | #endif /* I40E_FCOE */ | |
41c445ff | 8164 | #ifdef CONFIG_PCI_IOV |
ba252f13 | 8165 | if (pf->hw.func_caps.num_vfs && pf->hw.partition_id == 1) { |
41c445ff JB |
8166 | pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; |
8167 | pf->flags |= I40E_FLAG_SRIOV_ENABLED; | |
8168 | pf->num_req_vfs = min_t(int, | |
8169 | pf->hw.func_caps.num_vfs, | |
8170 | I40E_MAX_VF_COUNT); | |
8171 | } | |
8172 | #endif /* CONFIG_PCI_IOV */ | |
d502ce01 ASJ |
8173 | if (pf->hw.mac.type == I40E_MAC_X722) { |
8174 | pf->flags |= I40E_FLAG_RSS_AQ_CAPABLE | | |
8175 | I40E_FLAG_128_QP_RSS_CAPABLE | | |
8176 | I40E_FLAG_HW_ATR_EVICT_CAPABLE | | |
8177 | I40E_FLAG_OUTER_UDP_CSUM_CAPABLE | | |
8178 | I40E_FLAG_WB_ON_ITR_CAPABLE | | |
8179 | I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE; | |
8180 | } | |
41c445ff JB |
8181 | pf->eeprom_version = 0xDEAD; |
8182 | pf->lan_veb = I40E_NO_VEB; | |
8183 | pf->lan_vsi = I40E_NO_VSI; | |
8184 | ||
d1a8d275 ASJ |
8185 | /* By default FW has this off for performance reasons */ |
8186 | pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED; | |
8187 | ||
41c445ff JB |
8188 | /* set up queue assignment tracking */ |
8189 | size = sizeof(struct i40e_lump_tracking) | |
8190 | + (sizeof(u16) * pf->hw.func_caps.num_tx_qp); | |
8191 | pf->qp_pile = kzalloc(size, GFP_KERNEL); | |
8192 | if (!pf->qp_pile) { | |
8193 | err = -ENOMEM; | |
8194 | goto sw_init_done; | |
8195 | } | |
8196 | pf->qp_pile->num_entries = pf->hw.func_caps.num_tx_qp; | |
8197 | pf->qp_pile->search_hint = 0; | |
8198 | ||
327fe04b ASJ |
8199 | pf->tx_timeout_recovery_level = 1; |
8200 | ||
41c445ff JB |
8201 | mutex_init(&pf->switch_mutex); |
8202 | ||
c668a12c GR |
8203 | /* If NPAR is enabled nudge the Tx scheduler */ |
8204 | if (pf->hw.func_caps.npar_enable && (!i40e_get_npar_bw_setting(pf))) | |
8205 | i40e_set_npar_bw_setting(pf); | |
8206 | ||
41c445ff JB |
8207 | sw_init_done: |
8208 | return err; | |
8209 | } | |
8210 | ||
7c3c288b ASJ |
8211 | /** |
8212 | * i40e_set_ntuple - set the ntuple feature flag and take action | |
8213 | * @pf: board private structure to initialize | |
8214 | * @features: the feature set that the stack is suggesting | |
8215 | * | |
8216 | * returns a bool to indicate if reset needs to happen | |
8217 | **/ | |
8218 | bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features) | |
8219 | { | |
8220 | bool need_reset = false; | |
8221 | ||
8222 | /* Check if Flow Director n-tuple support was enabled or disabled. If | |
8223 | * the state changed, we need to reset. | |
8224 | */ | |
8225 | if (features & NETIF_F_NTUPLE) { | |
8226 | /* Enable filters and mark for reset */ | |
8227 | if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) | |
8228 | need_reset = true; | |
8229 | pf->flags |= I40E_FLAG_FD_SB_ENABLED; | |
8230 | } else { | |
8231 | /* turn off filters, mark for reset and clear SW filter list */ | |
8232 | if (pf->flags & I40E_FLAG_FD_SB_ENABLED) { | |
8233 | need_reset = true; | |
8234 | i40e_fdir_filter_exit(pf); | |
8235 | } | |
8236 | pf->flags &= ~I40E_FLAG_FD_SB_ENABLED; | |
8a4f34fb | 8237 | pf->auto_disable_flags &= ~I40E_FLAG_FD_SB_ENABLED; |
1e1be8f6 ASJ |
8238 | /* reset fd counters */ |
8239 | pf->fd_add_err = pf->fd_atr_cnt = pf->fd_tcp_rule = 0; | |
8240 | pf->fdir_pf_active_filters = 0; | |
8241 | pf->flags |= I40E_FLAG_FD_ATR_ENABLED; | |
2e4875e3 ASJ |
8242 | if (I40E_DEBUG_FD & pf->hw.debug_mask) |
8243 | dev_info(&pf->pdev->dev, "ATR re-enabled.\n"); | |
8a4f34fb ASJ |
8244 | /* if ATR was auto disabled it can be re-enabled. */ |
8245 | if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) && | |
8246 | (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) | |
8247 | pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED; | |
7c3c288b ASJ |
8248 | } |
8249 | return need_reset; | |
8250 | } | |
8251 | ||
41c445ff JB |
8252 | /** |
8253 | * i40e_set_features - set the netdev feature flags | |
8254 | * @netdev: ptr to the netdev being adjusted | |
8255 | * @features: the feature set that the stack is suggesting | |
8256 | **/ | |
8257 | static int i40e_set_features(struct net_device *netdev, | |
8258 | netdev_features_t features) | |
8259 | { | |
8260 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
8261 | struct i40e_vsi *vsi = np->vsi; | |
7c3c288b ASJ |
8262 | struct i40e_pf *pf = vsi->back; |
8263 | bool need_reset; | |
41c445ff JB |
8264 | |
8265 | if (features & NETIF_F_HW_VLAN_CTAG_RX) | |
8266 | i40e_vlan_stripping_enable(vsi); | |
8267 | else | |
8268 | i40e_vlan_stripping_disable(vsi); | |
8269 | ||
7c3c288b ASJ |
8270 | need_reset = i40e_set_ntuple(pf, features); |
8271 | ||
8272 | if (need_reset) | |
41a1d04b | 8273 | i40e_do_reset(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); |
7c3c288b | 8274 | |
41c445ff JB |
8275 | return 0; |
8276 | } | |
8277 | ||
a1c9a9d9 JK |
8278 | #ifdef CONFIG_I40E_VXLAN |
8279 | /** | |
8280 | * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port | |
8281 | * @pf: board private structure | |
8282 | * @port: The UDP port to look up | |
8283 | * | |
8284 | * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found | |
8285 | **/ | |
8286 | static u8 i40e_get_vxlan_port_idx(struct i40e_pf *pf, __be16 port) | |
8287 | { | |
8288 | u8 i; | |
8289 | ||
8290 | for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) { | |
8291 | if (pf->vxlan_ports[i] == port) | |
8292 | return i; | |
8293 | } | |
8294 | ||
8295 | return i; | |
8296 | } | |
8297 | ||
8298 | /** | |
8299 | * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up | |
8300 | * @netdev: This physical port's netdev | |
8301 | * @sa_family: Socket Family that VXLAN is notifying us about | |
8302 | * @port: New UDP port number that VXLAN started listening to | |
8303 | **/ | |
8304 | static void i40e_add_vxlan_port(struct net_device *netdev, | |
8305 | sa_family_t sa_family, __be16 port) | |
8306 | { | |
8307 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
8308 | struct i40e_vsi *vsi = np->vsi; | |
8309 | struct i40e_pf *pf = vsi->back; | |
8310 | u8 next_idx; | |
8311 | u8 idx; | |
8312 | ||
8313 | if (sa_family == AF_INET6) | |
8314 | return; | |
8315 | ||
8316 | idx = i40e_get_vxlan_port_idx(pf, port); | |
8317 | ||
8318 | /* Check if port already exists */ | |
8319 | if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) { | |
c22c06c8 SN |
8320 | netdev_info(netdev, "vxlan port %d already offloaded\n", |
8321 | ntohs(port)); | |
a1c9a9d9 JK |
8322 | return; |
8323 | } | |
8324 | ||
8325 | /* Now check if there is space to add the new port */ | |
8326 | next_idx = i40e_get_vxlan_port_idx(pf, 0); | |
8327 | ||
8328 | if (next_idx == I40E_MAX_PF_UDP_OFFLOAD_PORTS) { | |
c22c06c8 | 8329 | netdev_info(netdev, "maximum number of vxlan UDP ports reached, not adding port %d\n", |
a1c9a9d9 JK |
8330 | ntohs(port)); |
8331 | return; | |
8332 | } | |
8333 | ||
8334 | /* New port: add it and mark its index in the bitmap */ | |
8335 | pf->vxlan_ports[next_idx] = port; | |
41a1d04b | 8336 | pf->pending_vxlan_bitmap |= BIT_ULL(next_idx); |
a1c9a9d9 JK |
8337 | pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC; |
8338 | } | |
8339 | ||
8340 | /** | |
8341 | * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away | |
8342 | * @netdev: This physical port's netdev | |
8343 | * @sa_family: Socket Family that VXLAN is notifying us about | |
8344 | * @port: UDP port number that VXLAN stopped listening to | |
8345 | **/ | |
8346 | static void i40e_del_vxlan_port(struct net_device *netdev, | |
8347 | sa_family_t sa_family, __be16 port) | |
8348 | { | |
8349 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
8350 | struct i40e_vsi *vsi = np->vsi; | |
8351 | struct i40e_pf *pf = vsi->back; | |
8352 | u8 idx; | |
8353 | ||
8354 | if (sa_family == AF_INET6) | |
8355 | return; | |
8356 | ||
8357 | idx = i40e_get_vxlan_port_idx(pf, port); | |
8358 | ||
8359 | /* Check if port already exists */ | |
8360 | if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) { | |
8361 | /* if port exists, set it to 0 (mark for deletion) | |
8362 | * and make it pending | |
8363 | */ | |
8364 | pf->vxlan_ports[idx] = 0; | |
41a1d04b | 8365 | pf->pending_vxlan_bitmap |= BIT_ULL(idx); |
a1c9a9d9 JK |
8366 | pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC; |
8367 | } else { | |
c22c06c8 | 8368 | netdev_warn(netdev, "vxlan port %d was not found, not deleting\n", |
a1c9a9d9 JK |
8369 | ntohs(port)); |
8370 | } | |
8371 | } | |
8372 | ||
8373 | #endif | |
1f224ad2 | 8374 | static int i40e_get_phys_port_id(struct net_device *netdev, |
02637fce | 8375 | struct netdev_phys_item_id *ppid) |
1f224ad2 NP |
8376 | { |
8377 | struct i40e_netdev_priv *np = netdev_priv(netdev); | |
8378 | struct i40e_pf *pf = np->vsi->back; | |
8379 | struct i40e_hw *hw = &pf->hw; | |
8380 | ||
8381 | if (!(pf->flags & I40E_FLAG_PORT_ID_VALID)) | |
8382 | return -EOPNOTSUPP; | |
8383 | ||
8384 | ppid->id_len = min_t(int, sizeof(hw->mac.port_addr), sizeof(ppid->id)); | |
8385 | memcpy(ppid->id, hw->mac.port_addr, ppid->id_len); | |
8386 | ||
8387 | return 0; | |
8388 | } | |
8389 | ||
2f90ade6 JB |
8390 | /** |
8391 | * i40e_ndo_fdb_add - add an entry to the hardware database | |
8392 | * @ndm: the input from the stack | |
8393 | * @tb: pointer to array of nladdr (unused) | |
8394 | * @dev: the net device pointer | |
8395 | * @addr: the MAC address entry being added | |
8396 | * @flags: instructions from stack about fdb operation | |
8397 | */ | |
4ba0dea5 GR |
8398 | static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
8399 | struct net_device *dev, | |
f6f6424b | 8400 | const unsigned char *addr, u16 vid, |
4ba0dea5 | 8401 | u16 flags) |
4ba0dea5 GR |
8402 | { |
8403 | struct i40e_netdev_priv *np = netdev_priv(dev); | |
8404 | struct i40e_pf *pf = np->vsi->back; | |
8405 | int err = 0; | |
8406 | ||
8407 | if (!(pf->flags & I40E_FLAG_SRIOV_ENABLED)) | |
8408 | return -EOPNOTSUPP; | |
8409 | ||
65891fea OG |
8410 | if (vid) { |
8411 | pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev->name); | |
8412 | return -EINVAL; | |
8413 | } | |
8414 | ||
4ba0dea5 GR |
8415 | /* Hardware does not support aging addresses so if a |
8416 | * ndm_state is given only allow permanent addresses | |
8417 | */ | |
8418 | if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) { | |
8419 | netdev_info(dev, "FDB only supports static addresses\n"); | |
8420 | return -EINVAL; | |
8421 | } | |
8422 | ||
8423 | if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) | |
8424 | err = dev_uc_add_excl(dev, addr); | |
8425 | else if (is_multicast_ether_addr(addr)) | |
8426 | err = dev_mc_add_excl(dev, addr); | |
8427 | else | |
8428 | err = -EINVAL; | |
8429 | ||
8430 | /* Only return duplicate errors if NLM_F_EXCL is set */ | |
8431 | if (err == -EEXIST && !(flags & NLM_F_EXCL)) | |
8432 | err = 0; | |
8433 | ||
8434 | return err; | |
8435 | } | |
8436 | ||
51616018 NP |
8437 | /** |
8438 | * i40e_ndo_bridge_setlink - Set the hardware bridge mode | |
8439 | * @dev: the netdev being configured | |
8440 | * @nlh: RTNL message | |
8441 | * | |
8442 | * Inserts a new hardware bridge if not already created and | |
8443 | * enables the bridging mode requested (VEB or VEPA). If the | |
8444 | * hardware bridge has already been inserted and the request | |
8445 | * is to change the mode then that requires a PF reset to | |
8446 | * allow rebuild of the components with required hardware | |
8447 | * bridge mode enabled. | |
8448 | **/ | |
8449 | static int i40e_ndo_bridge_setlink(struct net_device *dev, | |
9df70b66 CW |
8450 | struct nlmsghdr *nlh, |
8451 | u16 flags) | |
51616018 NP |
8452 | { |
8453 | struct i40e_netdev_priv *np = netdev_priv(dev); | |
8454 | struct i40e_vsi *vsi = np->vsi; | |
8455 | struct i40e_pf *pf = vsi->back; | |
8456 | struct i40e_veb *veb = NULL; | |
8457 | struct nlattr *attr, *br_spec; | |
8458 | int i, rem; | |
8459 | ||
8460 | /* Only for PF VSI for now */ | |
8461 | if (vsi->seid != pf->vsi[pf->lan_vsi]->seid) | |
8462 | return -EOPNOTSUPP; | |
8463 | ||
8464 | /* Find the HW bridge for PF VSI */ | |
8465 | for (i = 0; i < I40E_MAX_VEB && !veb; i++) { | |
8466 | if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid) | |
8467 | veb = pf->veb[i]; | |
8468 | } | |
8469 | ||
8470 | br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
8471 | ||
8472 | nla_for_each_nested(attr, br_spec, rem) { | |
8473 | __u16 mode; | |
8474 | ||
8475 | if (nla_type(attr) != IFLA_BRIDGE_MODE) | |
8476 | continue; | |
8477 | ||
8478 | mode = nla_get_u16(attr); | |
8479 | if ((mode != BRIDGE_MODE_VEPA) && | |
8480 | (mode != BRIDGE_MODE_VEB)) | |
8481 | return -EINVAL; | |
8482 | ||
8483 | /* Insert a new HW bridge */ | |
8484 | if (!veb) { | |
8485 | veb = i40e_veb_setup(pf, 0, vsi->uplink_seid, vsi->seid, | |
8486 | vsi->tc_config.enabled_tc); | |
8487 | if (veb) { | |
8488 | veb->bridge_mode = mode; | |
8489 | i40e_config_bridge_mode(veb); | |
8490 | } else { | |
8491 | /* No Bridge HW offload available */ | |
8492 | return -ENOENT; | |
8493 | } | |
8494 | break; | |
8495 | } else if (mode != veb->bridge_mode) { | |
8496 | /* Existing HW bridge but different mode needs reset */ | |
8497 | veb->bridge_mode = mode; | |
fc60861e ASJ |
8498 | /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */ |
8499 | if (mode == BRIDGE_MODE_VEB) | |
8500 | pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; | |
8501 | else | |
8502 | pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; | |
8503 | i40e_do_reset(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); | |
51616018 NP |
8504 | break; |
8505 | } | |
8506 | } | |
8507 | ||
8508 | return 0; | |
8509 | } | |
8510 | ||
8511 | /** | |
8512 | * i40e_ndo_bridge_getlink - Get the hardware bridge mode | |
8513 | * @skb: skb buff | |
8514 | * @pid: process id | |
8515 | * @seq: RTNL message seq # | |
8516 | * @dev: the netdev being configured | |
8517 | * @filter_mask: unused | |
d4b2f9fe | 8518 | * @nlflags: netlink flags passed in |
51616018 NP |
8519 | * |
8520 | * Return the mode in which the hardware bridge is operating in | |
8521 | * i.e VEB or VEPA. | |
8522 | **/ | |
51616018 NP |
8523 | static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
8524 | struct net_device *dev, | |
9f4ffc44 CW |
8525 | u32 __always_unused filter_mask, |
8526 | int nlflags) | |
51616018 NP |
8527 | { |
8528 | struct i40e_netdev_priv *np = netdev_priv(dev); | |
8529 | struct i40e_vsi *vsi = np->vsi; | |
8530 | struct i40e_pf *pf = vsi->back; | |
8531 | struct i40e_veb *veb = NULL; | |
8532 | int i; | |
8533 | ||
8534 | /* Only for PF VSI for now */ | |
8535 | if (vsi->seid != pf->vsi[pf->lan_vsi]->seid) | |
8536 | return -EOPNOTSUPP; | |
8537 | ||
8538 | /* Find the HW bridge for the PF VSI */ | |
8539 | for (i = 0; i < I40E_MAX_VEB && !veb; i++) { | |
8540 | if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid) | |
8541 | veb = pf->veb[i]; | |
8542 | } | |
8543 | ||
8544 | if (!veb) | |
8545 | return 0; | |
8546 | ||
46c264da | 8547 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode, |
7d4f8d87 | 8548 | nlflags, 0, 0, filter_mask, NULL); |
51616018 | 8549 | } |
51616018 | 8550 | |
f44a75e2 JS |
8551 | #define I40E_MAX_TUNNEL_HDR_LEN 80 |
8552 | /** | |
8553 | * i40e_features_check - Validate encapsulated packet conforms to limits | |
8554 | * @skb: skb buff | |
2bc11c63 | 8555 | * @dev: This physical port's netdev |
f44a75e2 JS |
8556 | * @features: Offload features that the stack believes apply |
8557 | **/ | |
8558 | static netdev_features_t i40e_features_check(struct sk_buff *skb, | |
8559 | struct net_device *dev, | |
8560 | netdev_features_t features) | |
8561 | { | |
8562 | if (skb->encapsulation && | |
8563 | (skb_inner_mac_header(skb) - skb_transport_header(skb) > | |
8564 | I40E_MAX_TUNNEL_HDR_LEN)) | |
8565 | return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK); | |
8566 | ||
8567 | return features; | |
8568 | } | |
8569 | ||
37a2973a | 8570 | static const struct net_device_ops i40e_netdev_ops = { |
41c445ff JB |
8571 | .ndo_open = i40e_open, |
8572 | .ndo_stop = i40e_close, | |
8573 | .ndo_start_xmit = i40e_lan_xmit_frame, | |
8574 | .ndo_get_stats64 = i40e_get_netdev_stats_struct, | |
8575 | .ndo_set_rx_mode = i40e_set_rx_mode, | |
8576 | .ndo_validate_addr = eth_validate_addr, | |
8577 | .ndo_set_mac_address = i40e_set_mac, | |
8578 | .ndo_change_mtu = i40e_change_mtu, | |
beb0dff1 | 8579 | .ndo_do_ioctl = i40e_ioctl, |
41c445ff JB |
8580 | .ndo_tx_timeout = i40e_tx_timeout, |
8581 | .ndo_vlan_rx_add_vid = i40e_vlan_rx_add_vid, | |
8582 | .ndo_vlan_rx_kill_vid = i40e_vlan_rx_kill_vid, | |
8583 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
8584 | .ndo_poll_controller = i40e_netpoll, | |
8585 | #endif | |
8586 | .ndo_setup_tc = i40e_setup_tc, | |
38e00438 VD |
8587 | #ifdef I40E_FCOE |
8588 | .ndo_fcoe_enable = i40e_fcoe_enable, | |
8589 | .ndo_fcoe_disable = i40e_fcoe_disable, | |
8590 | #endif | |
41c445ff JB |
8591 | .ndo_set_features = i40e_set_features, |
8592 | .ndo_set_vf_mac = i40e_ndo_set_vf_mac, | |
8593 | .ndo_set_vf_vlan = i40e_ndo_set_vf_port_vlan, | |
ed616689 | 8594 | .ndo_set_vf_rate = i40e_ndo_set_vf_bw, |
41c445ff | 8595 | .ndo_get_vf_config = i40e_ndo_get_vf_config, |
588aefa0 | 8596 | .ndo_set_vf_link_state = i40e_ndo_set_vf_link_state, |
e6d9004d | 8597 | .ndo_set_vf_spoofchk = i40e_ndo_set_vf_spoofchk, |
a1c9a9d9 JK |
8598 | #ifdef CONFIG_I40E_VXLAN |
8599 | .ndo_add_vxlan_port = i40e_add_vxlan_port, | |
8600 | .ndo_del_vxlan_port = i40e_del_vxlan_port, | |
8601 | #endif | |
1f224ad2 | 8602 | .ndo_get_phys_port_id = i40e_get_phys_port_id, |
4ba0dea5 | 8603 | .ndo_fdb_add = i40e_ndo_fdb_add, |
f44a75e2 | 8604 | .ndo_features_check = i40e_features_check, |
51616018 NP |
8605 | .ndo_bridge_getlink = i40e_ndo_bridge_getlink, |
8606 | .ndo_bridge_setlink = i40e_ndo_bridge_setlink, | |
41c445ff JB |
8607 | }; |
8608 | ||
8609 | /** | |
8610 | * i40e_config_netdev - Setup the netdev flags | |
8611 | * @vsi: the VSI being configured | |
8612 | * | |
8613 | * Returns 0 on success, negative value on failure | |
8614 | **/ | |
8615 | static int i40e_config_netdev(struct i40e_vsi *vsi) | |
8616 | { | |
1a10370a | 8617 | u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
41c445ff JB |
8618 | struct i40e_pf *pf = vsi->back; |
8619 | struct i40e_hw *hw = &pf->hw; | |
8620 | struct i40e_netdev_priv *np; | |
8621 | struct net_device *netdev; | |
8622 | u8 mac_addr[ETH_ALEN]; | |
8623 | int etherdev_size; | |
8624 | ||
8625 | etherdev_size = sizeof(struct i40e_netdev_priv); | |
f8ff1464 | 8626 | netdev = alloc_etherdev_mq(etherdev_size, vsi->alloc_queue_pairs); |
41c445ff JB |
8627 | if (!netdev) |
8628 | return -ENOMEM; | |
8629 | ||
8630 | vsi->netdev = netdev; | |
8631 | np = netdev_priv(netdev); | |
8632 | np->vsi = vsi; | |
8633 | ||
d70e941b | 8634 | netdev->hw_enc_features |= NETIF_F_IP_CSUM | |
41c445ff | 8635 | NETIF_F_GSO_UDP_TUNNEL | |
fec31fff | 8636 | NETIF_F_GSO_GRE | |
d70e941b | 8637 | NETIF_F_TSO; |
41c445ff JB |
8638 | |
8639 | netdev->features = NETIF_F_SG | | |
8640 | NETIF_F_IP_CSUM | | |
8641 | NETIF_F_SCTP_CSUM | | |
8642 | NETIF_F_HIGHDMA | | |
8643 | NETIF_F_GSO_UDP_TUNNEL | | |
fec31fff | 8644 | NETIF_F_GSO_GRE | |
41c445ff JB |
8645 | NETIF_F_HW_VLAN_CTAG_TX | |
8646 | NETIF_F_HW_VLAN_CTAG_RX | | |
8647 | NETIF_F_HW_VLAN_CTAG_FILTER | | |
8648 | NETIF_F_IPV6_CSUM | | |
8649 | NETIF_F_TSO | | |
059dab69 | 8650 | NETIF_F_TSO_ECN | |
41c445ff JB |
8651 | NETIF_F_TSO6 | |
8652 | NETIF_F_RXCSUM | | |
8653 | NETIF_F_RXHASH | | |
8654 | 0; | |
8655 | ||
2e86a0b6 ASJ |
8656 | if (!(pf->flags & I40E_FLAG_MFP_ENABLED)) |
8657 | netdev->features |= NETIF_F_NTUPLE; | |
8658 | ||
41c445ff JB |
8659 | /* copy netdev features into list of user selectable features */ |
8660 | netdev->hw_features |= netdev->features; | |
8661 | ||
8662 | if (vsi->type == I40E_VSI_MAIN) { | |
8663 | SET_NETDEV_DEV(netdev, &pf->pdev->dev); | |
9a173901 | 8664 | ether_addr_copy(mac_addr, hw->mac.perm_addr); |
30650cc5 SN |
8665 | /* The following steps are necessary to prevent reception |
8666 | * of tagged packets - some older NVM configurations load a | |
8667 | * default a MAC-VLAN filter that accepts any tagged packet | |
8668 | * which must be replaced by a normal filter. | |
8c27d42e | 8669 | */ |
21659035 KP |
8670 | if (!i40e_rm_default_mac_filter(vsi, mac_addr)) { |
8671 | spin_lock_bh(&vsi->mac_filter_list_lock); | |
30650cc5 SN |
8672 | i40e_add_filter(vsi, mac_addr, |
8673 | I40E_VLAN_ANY, false, true); | |
21659035 KP |
8674 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
8675 | } | |
41c445ff JB |
8676 | } else { |
8677 | /* relate the VSI_VMDQ name to the VSI_MAIN name */ | |
8678 | snprintf(netdev->name, IFNAMSIZ, "%sv%%d", | |
8679 | pf->vsi[pf->lan_vsi]->netdev->name); | |
8680 | random_ether_addr(mac_addr); | |
21659035 KP |
8681 | |
8682 | spin_lock_bh(&vsi->mac_filter_list_lock); | |
41c445ff | 8683 | i40e_add_filter(vsi, mac_addr, I40E_VLAN_ANY, false, false); |
21659035 | 8684 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff | 8685 | } |
21659035 KP |
8686 | |
8687 | spin_lock_bh(&vsi->mac_filter_list_lock); | |
1a10370a | 8688 | i40e_add_filter(vsi, brdcast, I40E_VLAN_ANY, false, false); |
21659035 | 8689 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
41c445ff | 8690 | |
9a173901 GR |
8691 | ether_addr_copy(netdev->dev_addr, mac_addr); |
8692 | ether_addr_copy(netdev->perm_addr, mac_addr); | |
41c445ff JB |
8693 | /* vlan gets same features (except vlan offload) |
8694 | * after any tweaks for specific VSI types | |
8695 | */ | |
8696 | netdev->vlan_features = netdev->features & ~(NETIF_F_HW_VLAN_CTAG_TX | | |
8697 | NETIF_F_HW_VLAN_CTAG_RX | | |
8698 | NETIF_F_HW_VLAN_CTAG_FILTER); | |
8699 | netdev->priv_flags |= IFF_UNICAST_FLT; | |
8700 | netdev->priv_flags |= IFF_SUPP_NOFCS; | |
8701 | /* Setup netdev TC information */ | |
8702 | i40e_vsi_config_netdev_tc(vsi, vsi->tc_config.enabled_tc); | |
8703 | ||
8704 | netdev->netdev_ops = &i40e_netdev_ops; | |
8705 | netdev->watchdog_timeo = 5 * HZ; | |
8706 | i40e_set_ethtool_ops(netdev); | |
38e00438 VD |
8707 | #ifdef I40E_FCOE |
8708 | i40e_fcoe_config_netdev(netdev, vsi); | |
8709 | #endif | |
41c445ff JB |
8710 | |
8711 | return 0; | |
8712 | } | |
8713 | ||
8714 | /** | |
8715 | * i40e_vsi_delete - Delete a VSI from the switch | |
8716 | * @vsi: the VSI being removed | |
8717 | * | |
8718 | * Returns 0 on success, negative value on failure | |
8719 | **/ | |
8720 | static void i40e_vsi_delete(struct i40e_vsi *vsi) | |
8721 | { | |
8722 | /* remove default VSI is not allowed */ | |
8723 | if (vsi == vsi->back->vsi[vsi->back->lan_vsi]) | |
8724 | return; | |
8725 | ||
41c445ff | 8726 | i40e_aq_delete_element(&vsi->back->hw, vsi->seid, NULL); |
41c445ff JB |
8727 | } |
8728 | ||
51616018 NP |
8729 | /** |
8730 | * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB | |
8731 | * @vsi: the VSI being queried | |
8732 | * | |
8733 | * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode | |
8734 | **/ | |
8735 | int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi) | |
8736 | { | |
8737 | struct i40e_veb *veb; | |
8738 | struct i40e_pf *pf = vsi->back; | |
8739 | ||
8740 | /* Uplink is not a bridge so default to VEB */ | |
8741 | if (vsi->veb_idx == I40E_NO_VEB) | |
8742 | return 1; | |
8743 | ||
8744 | veb = pf->veb[vsi->veb_idx]; | |
09603eaa AA |
8745 | if (!veb) { |
8746 | dev_info(&pf->pdev->dev, | |
8747 | "There is no veb associated with the bridge\n"); | |
8748 | return -ENOENT; | |
8749 | } | |
8750 | ||
51616018 | 8751 | /* Uplink is a bridge in VEPA mode */ |
09603eaa | 8752 | if (veb->bridge_mode & BRIDGE_MODE_VEPA) { |
51616018 | 8753 | return 0; |
09603eaa AA |
8754 | } else { |
8755 | /* Uplink is a bridge in VEB mode */ | |
8756 | return 1; | |
8757 | } | |
51616018 | 8758 | |
09603eaa AA |
8759 | /* VEPA is now default bridge, so return 0 */ |
8760 | return 0; | |
51616018 NP |
8761 | } |
8762 | ||
41c445ff JB |
8763 | /** |
8764 | * i40e_add_vsi - Add a VSI to the switch | |
8765 | * @vsi: the VSI being configured | |
8766 | * | |
8767 | * This initializes a VSI context depending on the VSI type to be added and | |
8768 | * passes it down to the add_vsi aq command. | |
8769 | **/ | |
8770 | static int i40e_add_vsi(struct i40e_vsi *vsi) | |
8771 | { | |
8772 | int ret = -ENODEV; | |
21659035 KP |
8773 | u8 laa_macaddr[ETH_ALEN]; |
8774 | bool found_laa_mac_filter = false; | |
41c445ff JB |
8775 | struct i40e_pf *pf = vsi->back; |
8776 | struct i40e_hw *hw = &pf->hw; | |
8777 | struct i40e_vsi_context ctxt; | |
21659035 KP |
8778 | struct i40e_mac_filter *f, *ftmp; |
8779 | ||
41c445ff JB |
8780 | u8 enabled_tc = 0x1; /* TC0 enabled */ |
8781 | int f_count = 0; | |
8782 | ||
8783 | memset(&ctxt, 0, sizeof(ctxt)); | |
8784 | switch (vsi->type) { | |
8785 | case I40E_VSI_MAIN: | |
8786 | /* The PF's main VSI is already setup as part of the | |
8787 | * device initialization, so we'll not bother with | |
8788 | * the add_vsi call, but we will retrieve the current | |
8789 | * VSI context. | |
8790 | */ | |
8791 | ctxt.seid = pf->main_vsi_seid; | |
8792 | ctxt.pf_num = pf->hw.pf_id; | |
8793 | ctxt.vf_num = 0; | |
8794 | ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); | |
8795 | ctxt.flags = I40E_AQ_VSI_TYPE_PF; | |
8796 | if (ret) { | |
8797 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
8798 | "couldn't get PF vsi config, err %s aq_err %s\n", |
8799 | i40e_stat_str(&pf->hw, ret), | |
8800 | i40e_aq_str(&pf->hw, | |
8801 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
8802 | return -ENOENT; |
8803 | } | |
1a2f6248 | 8804 | vsi->info = ctxt.info; |
41c445ff JB |
8805 | vsi->info.valid_sections = 0; |
8806 | ||
8807 | vsi->seid = ctxt.seid; | |
8808 | vsi->id = ctxt.vsi_number; | |
8809 | ||
8810 | enabled_tc = i40e_pf_get_tc_map(pf); | |
8811 | ||
8812 | /* MFP mode setup queue map and update VSI */ | |
63d7e5a4 NP |
8813 | if ((pf->flags & I40E_FLAG_MFP_ENABLED) && |
8814 | !(pf->hw.func_caps.iscsi)) { /* NIC type PF */ | |
41c445ff JB |
8815 | memset(&ctxt, 0, sizeof(ctxt)); |
8816 | ctxt.seid = pf->main_vsi_seid; | |
8817 | ctxt.pf_num = pf->hw.pf_id; | |
8818 | ctxt.vf_num = 0; | |
8819 | i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, false); | |
8820 | ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); | |
8821 | if (ret) { | |
8822 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
8823 | "update vsi failed, err %s aq_err %s\n", |
8824 | i40e_stat_str(&pf->hw, ret), | |
8825 | i40e_aq_str(&pf->hw, | |
8826 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
8827 | ret = -ENOENT; |
8828 | goto err; | |
8829 | } | |
8830 | /* update the local VSI info queue map */ | |
8831 | i40e_vsi_update_queue_map(vsi, &ctxt); | |
8832 | vsi->info.valid_sections = 0; | |
8833 | } else { | |
8834 | /* Default/Main VSI is only enabled for TC0 | |
8835 | * reconfigure it to enable all TCs that are | |
8836 | * available on the port in SFP mode. | |
63d7e5a4 NP |
8837 | * For MFP case the iSCSI PF would use this |
8838 | * flow to enable LAN+iSCSI TC. | |
41c445ff JB |
8839 | */ |
8840 | ret = i40e_vsi_config_tc(vsi, enabled_tc); | |
8841 | if (ret) { | |
8842 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
8843 | "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n", |
8844 | enabled_tc, | |
8845 | i40e_stat_str(&pf->hw, ret), | |
8846 | i40e_aq_str(&pf->hw, | |
8847 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
8848 | ret = -ENOENT; |
8849 | } | |
8850 | } | |
8851 | break; | |
8852 | ||
8853 | case I40E_VSI_FDIR: | |
cbf61325 ASJ |
8854 | ctxt.pf_num = hw->pf_id; |
8855 | ctxt.vf_num = 0; | |
8856 | ctxt.uplink_seid = vsi->uplink_seid; | |
2b18e591 | 8857 | ctxt.connection_type = I40E_AQ_VSI_CONN_TYPE_NORMAL; |
cbf61325 | 8858 | ctxt.flags = I40E_AQ_VSI_TYPE_PF; |
fc60861e ASJ |
8859 | if ((pf->flags & I40E_FLAG_VEB_MODE_ENABLED) && |
8860 | (i40e_is_vsi_uplink_mode_veb(vsi))) { | |
51616018 | 8861 | ctxt.info.valid_sections |= |
fc60861e | 8862 | cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID); |
51616018 | 8863 | ctxt.info.switch_id = |
fc60861e | 8864 | cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB); |
51616018 | 8865 | } |
41c445ff | 8866 | i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true); |
41c445ff JB |
8867 | break; |
8868 | ||
8869 | case I40E_VSI_VMDQ2: | |
8870 | ctxt.pf_num = hw->pf_id; | |
8871 | ctxt.vf_num = 0; | |
8872 | ctxt.uplink_seid = vsi->uplink_seid; | |
2b18e591 | 8873 | ctxt.connection_type = I40E_AQ_VSI_CONN_TYPE_NORMAL; |
41c445ff JB |
8874 | ctxt.flags = I40E_AQ_VSI_TYPE_VMDQ2; |
8875 | ||
41c445ff JB |
8876 | /* This VSI is connected to VEB so the switch_id |
8877 | * should be set to zero by default. | |
8878 | */ | |
51616018 NP |
8879 | if (i40e_is_vsi_uplink_mode_veb(vsi)) { |
8880 | ctxt.info.valid_sections |= | |
8881 | cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID); | |
8882 | ctxt.info.switch_id = | |
8883 | cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB); | |
8884 | } | |
41c445ff JB |
8885 | |
8886 | /* Setup the VSI tx/rx queue map for TC0 only for now */ | |
8887 | i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true); | |
8888 | break; | |
8889 | ||
8890 | case I40E_VSI_SRIOV: | |
8891 | ctxt.pf_num = hw->pf_id; | |
8892 | ctxt.vf_num = vsi->vf_id + hw->func_caps.vf_base_id; | |
8893 | ctxt.uplink_seid = vsi->uplink_seid; | |
2b18e591 | 8894 | ctxt.connection_type = I40E_AQ_VSI_CONN_TYPE_NORMAL; |
41c445ff JB |
8895 | ctxt.flags = I40E_AQ_VSI_TYPE_VF; |
8896 | ||
41c445ff JB |
8897 | /* This VSI is connected to VEB so the switch_id |
8898 | * should be set to zero by default. | |
8899 | */ | |
51616018 NP |
8900 | if (i40e_is_vsi_uplink_mode_veb(vsi)) { |
8901 | ctxt.info.valid_sections |= | |
8902 | cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID); | |
8903 | ctxt.info.switch_id = | |
8904 | cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB); | |
8905 | } | |
41c445ff JB |
8906 | |
8907 | ctxt.info.valid_sections |= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID); | |
8908 | ctxt.info.port_vlan_flags |= I40E_AQ_VSI_PVLAN_MODE_ALL; | |
c674d125 MW |
8909 | if (pf->vf[vsi->vf_id].spoofchk) { |
8910 | ctxt.info.valid_sections |= | |
8911 | cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); | |
8912 | ctxt.info.sec_flags |= | |
8913 | (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | | |
8914 | I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); | |
8915 | } | |
41c445ff JB |
8916 | /* Setup the VSI tx/rx queue map for TC0 only for now */ |
8917 | i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true); | |
8918 | break; | |
8919 | ||
38e00438 VD |
8920 | #ifdef I40E_FCOE |
8921 | case I40E_VSI_FCOE: | |
8922 | ret = i40e_fcoe_vsi_init(vsi, &ctxt); | |
8923 | if (ret) { | |
8924 | dev_info(&pf->pdev->dev, "failed to initialize FCoE VSI\n"); | |
8925 | return ret; | |
8926 | } | |
8927 | break; | |
8928 | ||
8929 | #endif /* I40E_FCOE */ | |
41c445ff JB |
8930 | default: |
8931 | return -ENODEV; | |
8932 | } | |
8933 | ||
8934 | if (vsi->type != I40E_VSI_MAIN) { | |
8935 | ret = i40e_aq_add_vsi(hw, &ctxt, NULL); | |
8936 | if (ret) { | |
8937 | dev_info(&vsi->back->pdev->dev, | |
f1c7e72e SN |
8938 | "add vsi failed, err %s aq_err %s\n", |
8939 | i40e_stat_str(&pf->hw, ret), | |
8940 | i40e_aq_str(&pf->hw, | |
8941 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
8942 | ret = -ENOENT; |
8943 | goto err; | |
8944 | } | |
1a2f6248 | 8945 | vsi->info = ctxt.info; |
41c445ff JB |
8946 | vsi->info.valid_sections = 0; |
8947 | vsi->seid = ctxt.seid; | |
8948 | vsi->id = ctxt.vsi_number; | |
8949 | } | |
8950 | ||
21659035 | 8951 | spin_lock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
8952 | /* If macvlan filters already exist, force them to get loaded */ |
8953 | list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { | |
8954 | f->changed = true; | |
8955 | f_count++; | |
6252c7e4 | 8956 | |
21659035 | 8957 | /* Expected to have only one MAC filter entry for LAA in list */ |
6252c7e4 | 8958 | if (f->is_laa && vsi->type == I40E_VSI_MAIN) { |
21659035 KP |
8959 | ether_addr_copy(laa_macaddr, f->macaddr); |
8960 | found_laa_mac_filter = true; | |
8961 | } | |
8962 | } | |
8963 | spin_unlock_bh(&vsi->mac_filter_list_lock); | |
30650cc5 | 8964 | |
21659035 KP |
8965 | if (found_laa_mac_filter) { |
8966 | struct i40e_aqc_remove_macvlan_element_data element; | |
30650cc5 | 8967 | |
21659035 KP |
8968 | memset(&element, 0, sizeof(element)); |
8969 | ether_addr_copy(element.mac_addr, laa_macaddr); | |
8970 | element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH; | |
8971 | ret = i40e_aq_remove_macvlan(hw, vsi->seid, | |
8972 | &element, 1, NULL); | |
8973 | if (ret) { | |
8974 | /* some older FW has a different default */ | |
8975 | element.flags |= | |
8976 | I40E_AQC_MACVLAN_DEL_IGNORE_VLAN; | |
8977 | i40e_aq_remove_macvlan(hw, vsi->seid, | |
8978 | &element, 1, NULL); | |
6252c7e4 | 8979 | } |
21659035 KP |
8980 | |
8981 | i40e_aq_mac_address_write(hw, | |
8982 | I40E_AQC_WRITE_TYPE_LAA_WOL, | |
8983 | laa_macaddr, NULL); | |
41c445ff | 8984 | } |
21659035 | 8985 | |
41c445ff JB |
8986 | if (f_count) { |
8987 | vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; | |
8988 | pf->flags |= I40E_FLAG_FILTER_SYNC; | |
8989 | } | |
8990 | ||
8991 | /* Update VSI BW information */ | |
8992 | ret = i40e_vsi_get_bw_info(vsi); | |
8993 | if (ret) { | |
8994 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
8995 | "couldn't get vsi bw info, err %s aq_err %s\n", |
8996 | i40e_stat_str(&pf->hw, ret), | |
8997 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
41c445ff JB |
8998 | /* VSI is already added so not tearing that up */ |
8999 | ret = 0; | |
9000 | } | |
9001 | ||
9002 | err: | |
9003 | return ret; | |
9004 | } | |
9005 | ||
9006 | /** | |
9007 | * i40e_vsi_release - Delete a VSI and free its resources | |
9008 | * @vsi: the VSI being removed | |
9009 | * | |
9010 | * Returns 0 on success or < 0 on error | |
9011 | **/ | |
9012 | int i40e_vsi_release(struct i40e_vsi *vsi) | |
9013 | { | |
9014 | struct i40e_mac_filter *f, *ftmp; | |
9015 | struct i40e_veb *veb = NULL; | |
9016 | struct i40e_pf *pf; | |
9017 | u16 uplink_seid; | |
9018 | int i, n; | |
9019 | ||
9020 | pf = vsi->back; | |
9021 | ||
9022 | /* release of a VEB-owner or last VSI is not allowed */ | |
9023 | if (vsi->flags & I40E_VSI_FLAG_VEB_OWNER) { | |
9024 | dev_info(&pf->pdev->dev, "VSI %d has existing VEB %d\n", | |
9025 | vsi->seid, vsi->uplink_seid); | |
9026 | return -ENODEV; | |
9027 | } | |
9028 | if (vsi == pf->vsi[pf->lan_vsi] && | |
9029 | !test_bit(__I40E_DOWN, &pf->state)) { | |
9030 | dev_info(&pf->pdev->dev, "Can't remove PF VSI\n"); | |
9031 | return -ENODEV; | |
9032 | } | |
9033 | ||
9034 | uplink_seid = vsi->uplink_seid; | |
9035 | if (vsi->type != I40E_VSI_SRIOV) { | |
9036 | if (vsi->netdev_registered) { | |
9037 | vsi->netdev_registered = false; | |
9038 | if (vsi->netdev) { | |
9039 | /* results in a call to i40e_close() */ | |
9040 | unregister_netdev(vsi->netdev); | |
41c445ff JB |
9041 | } |
9042 | } else { | |
90ef8d47 | 9043 | i40e_vsi_close(vsi); |
41c445ff JB |
9044 | } |
9045 | i40e_vsi_disable_irq(vsi); | |
9046 | } | |
9047 | ||
21659035 | 9048 | spin_lock_bh(&vsi->mac_filter_list_lock); |
41c445ff JB |
9049 | list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) |
9050 | i40e_del_filter(vsi, f->macaddr, f->vlan, | |
9051 | f->is_vf, f->is_netdev); | |
21659035 KP |
9052 | spin_unlock_bh(&vsi->mac_filter_list_lock); |
9053 | ||
30e2561b | 9054 | i40e_sync_vsi_filters(vsi, false); |
41c445ff JB |
9055 | |
9056 | i40e_vsi_delete(vsi); | |
9057 | i40e_vsi_free_q_vectors(vsi); | |
a4866597 SN |
9058 | if (vsi->netdev) { |
9059 | free_netdev(vsi->netdev); | |
9060 | vsi->netdev = NULL; | |
9061 | } | |
41c445ff JB |
9062 | i40e_vsi_clear_rings(vsi); |
9063 | i40e_vsi_clear(vsi); | |
9064 | ||
9065 | /* If this was the last thing on the VEB, except for the | |
9066 | * controlling VSI, remove the VEB, which puts the controlling | |
9067 | * VSI onto the next level down in the switch. | |
9068 | * | |
9069 | * Well, okay, there's one more exception here: don't remove | |
9070 | * the orphan VEBs yet. We'll wait for an explicit remove request | |
9071 | * from up the network stack. | |
9072 | */ | |
505682cd | 9073 | for (n = 0, i = 0; i < pf->num_alloc_vsi; i++) { |
41c445ff JB |
9074 | if (pf->vsi[i] && |
9075 | pf->vsi[i]->uplink_seid == uplink_seid && | |
9076 | (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) { | |
9077 | n++; /* count the VSIs */ | |
9078 | } | |
9079 | } | |
9080 | for (i = 0; i < I40E_MAX_VEB; i++) { | |
9081 | if (!pf->veb[i]) | |
9082 | continue; | |
9083 | if (pf->veb[i]->uplink_seid == uplink_seid) | |
9084 | n++; /* count the VEBs */ | |
9085 | if (pf->veb[i]->seid == uplink_seid) | |
9086 | veb = pf->veb[i]; | |
9087 | } | |
9088 | if (n == 0 && veb && veb->uplink_seid != 0) | |
9089 | i40e_veb_release(veb); | |
9090 | ||
9091 | return 0; | |
9092 | } | |
9093 | ||
9094 | /** | |
9095 | * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI | |
9096 | * @vsi: ptr to the VSI | |
9097 | * | |
9098 | * This should only be called after i40e_vsi_mem_alloc() which allocates the | |
9099 | * corresponding SW VSI structure and initializes num_queue_pairs for the | |
9100 | * newly allocated VSI. | |
9101 | * | |
9102 | * Returns 0 on success or negative on failure | |
9103 | **/ | |
9104 | static int i40e_vsi_setup_vectors(struct i40e_vsi *vsi) | |
9105 | { | |
9106 | int ret = -ENOENT; | |
9107 | struct i40e_pf *pf = vsi->back; | |
9108 | ||
493fb300 | 9109 | if (vsi->q_vectors[0]) { |
41c445ff JB |
9110 | dev_info(&pf->pdev->dev, "VSI %d has existing q_vectors\n", |
9111 | vsi->seid); | |
9112 | return -EEXIST; | |
9113 | } | |
9114 | ||
9115 | if (vsi->base_vector) { | |
f29eaa3d | 9116 | dev_info(&pf->pdev->dev, "VSI %d has non-zero base vector %d\n", |
41c445ff JB |
9117 | vsi->seid, vsi->base_vector); |
9118 | return -EEXIST; | |
9119 | } | |
9120 | ||
90e04070 | 9121 | ret = i40e_vsi_alloc_q_vectors(vsi); |
41c445ff JB |
9122 | if (ret) { |
9123 | dev_info(&pf->pdev->dev, | |
9124 | "failed to allocate %d q_vector for VSI %d, ret=%d\n", | |
9125 | vsi->num_q_vectors, vsi->seid, ret); | |
9126 | vsi->num_q_vectors = 0; | |
9127 | goto vector_setup_out; | |
9128 | } | |
9129 | ||
26cdc443 ASJ |
9130 | /* In Legacy mode, we do not have to get any other vector since we |
9131 | * piggyback on the misc/ICR0 for queue interrupts. | |
9132 | */ | |
9133 | if (!(pf->flags & I40E_FLAG_MSIX_ENABLED)) | |
9134 | return ret; | |
958a3e3b SN |
9135 | if (vsi->num_q_vectors) |
9136 | vsi->base_vector = i40e_get_lump(pf, pf->irq_pile, | |
9137 | vsi->num_q_vectors, vsi->idx); | |
41c445ff JB |
9138 | if (vsi->base_vector < 0) { |
9139 | dev_info(&pf->pdev->dev, | |
049a2be8 SN |
9140 | "failed to get tracking for %d vectors for VSI %d, err=%d\n", |
9141 | vsi->num_q_vectors, vsi->seid, vsi->base_vector); | |
41c445ff JB |
9142 | i40e_vsi_free_q_vectors(vsi); |
9143 | ret = -ENOENT; | |
9144 | goto vector_setup_out; | |
9145 | } | |
9146 | ||
9147 | vector_setup_out: | |
9148 | return ret; | |
9149 | } | |
9150 | ||
bc7d338f ASJ |
9151 | /** |
9152 | * i40e_vsi_reinit_setup - return and reallocate resources for a VSI | |
9153 | * @vsi: pointer to the vsi. | |
9154 | * | |
9155 | * This re-allocates a vsi's queue resources. | |
9156 | * | |
9157 | * Returns pointer to the successfully allocated and configured VSI sw struct | |
9158 | * on success, otherwise returns NULL on failure. | |
9159 | **/ | |
9160 | static struct i40e_vsi *i40e_vsi_reinit_setup(struct i40e_vsi *vsi) | |
9161 | { | |
9162 | struct i40e_pf *pf = vsi->back; | |
9163 | u8 enabled_tc; | |
9164 | int ret; | |
9165 | ||
9166 | i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx); | |
9167 | i40e_vsi_clear_rings(vsi); | |
9168 | ||
9169 | i40e_vsi_free_arrays(vsi, false); | |
9170 | i40e_set_num_rings_in_vsi(vsi); | |
9171 | ret = i40e_vsi_alloc_arrays(vsi, false); | |
9172 | if (ret) | |
9173 | goto err_vsi; | |
9174 | ||
9175 | ret = i40e_get_lump(pf, pf->qp_pile, vsi->alloc_queue_pairs, vsi->idx); | |
9176 | if (ret < 0) { | |
049a2be8 | 9177 | dev_info(&pf->pdev->dev, |
f1c7e72e | 9178 | "failed to get tracking for %d queues for VSI %d err %d\n", |
049a2be8 | 9179 | vsi->alloc_queue_pairs, vsi->seid, ret); |
bc7d338f ASJ |
9180 | goto err_vsi; |
9181 | } | |
9182 | vsi->base_queue = ret; | |
9183 | ||
9184 | /* Update the FW view of the VSI. Force a reset of TC and queue | |
9185 | * layout configurations. | |
9186 | */ | |
9187 | enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc; | |
9188 | pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0; | |
9189 | pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid; | |
9190 | i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc); | |
9191 | ||
9192 | /* assign it some queues */ | |
9193 | ret = i40e_alloc_rings(vsi); | |
9194 | if (ret) | |
9195 | goto err_rings; | |
9196 | ||
9197 | /* map all of the rings to the q_vectors */ | |
9198 | i40e_vsi_map_rings_to_vectors(vsi); | |
9199 | return vsi; | |
9200 | ||
9201 | err_rings: | |
9202 | i40e_vsi_free_q_vectors(vsi); | |
9203 | if (vsi->netdev_registered) { | |
9204 | vsi->netdev_registered = false; | |
9205 | unregister_netdev(vsi->netdev); | |
9206 | free_netdev(vsi->netdev); | |
9207 | vsi->netdev = NULL; | |
9208 | } | |
9209 | i40e_aq_delete_element(&pf->hw, vsi->seid, NULL); | |
9210 | err_vsi: | |
9211 | i40e_vsi_clear(vsi); | |
9212 | return NULL; | |
9213 | } | |
9214 | ||
41c445ff JB |
9215 | /** |
9216 | * i40e_vsi_setup - Set up a VSI by a given type | |
9217 | * @pf: board private structure | |
9218 | * @type: VSI type | |
9219 | * @uplink_seid: the switch element to link to | |
9220 | * @param1: usage depends upon VSI type. For VF types, indicates VF id | |
9221 | * | |
9222 | * This allocates the sw VSI structure and its queue resources, then add a VSI | |
9223 | * to the identified VEB. | |
9224 | * | |
9225 | * Returns pointer to the successfully allocated and configure VSI sw struct on | |
9226 | * success, otherwise returns NULL on failure. | |
9227 | **/ | |
9228 | struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type, | |
9229 | u16 uplink_seid, u32 param1) | |
9230 | { | |
9231 | struct i40e_vsi *vsi = NULL; | |
9232 | struct i40e_veb *veb = NULL; | |
9233 | int ret, i; | |
9234 | int v_idx; | |
9235 | ||
9236 | /* The requested uplink_seid must be either | |
9237 | * - the PF's port seid | |
9238 | * no VEB is needed because this is the PF | |
9239 | * or this is a Flow Director special case VSI | |
9240 | * - seid of an existing VEB | |
9241 | * - seid of a VSI that owns an existing VEB | |
9242 | * - seid of a VSI that doesn't own a VEB | |
9243 | * a new VEB is created and the VSI becomes the owner | |
9244 | * - seid of the PF VSI, which is what creates the first VEB | |
9245 | * this is a special case of the previous | |
9246 | * | |
9247 | * Find which uplink_seid we were given and create a new VEB if needed | |
9248 | */ | |
9249 | for (i = 0; i < I40E_MAX_VEB; i++) { | |
9250 | if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) { | |
9251 | veb = pf->veb[i]; | |
9252 | break; | |
9253 | } | |
9254 | } | |
9255 | ||
9256 | if (!veb && uplink_seid != pf->mac_seid) { | |
9257 | ||
505682cd | 9258 | for (i = 0; i < pf->num_alloc_vsi; i++) { |
41c445ff JB |
9259 | if (pf->vsi[i] && pf->vsi[i]->seid == uplink_seid) { |
9260 | vsi = pf->vsi[i]; | |
9261 | break; | |
9262 | } | |
9263 | } | |
9264 | if (!vsi) { | |
9265 | dev_info(&pf->pdev->dev, "no such uplink_seid %d\n", | |
9266 | uplink_seid); | |
9267 | return NULL; | |
9268 | } | |
9269 | ||
9270 | if (vsi->uplink_seid == pf->mac_seid) | |
9271 | veb = i40e_veb_setup(pf, 0, pf->mac_seid, vsi->seid, | |
9272 | vsi->tc_config.enabled_tc); | |
9273 | else if ((vsi->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) | |
9274 | veb = i40e_veb_setup(pf, 0, vsi->uplink_seid, vsi->seid, | |
9275 | vsi->tc_config.enabled_tc); | |
79c21a82 ASJ |
9276 | if (veb) { |
9277 | if (vsi->seid != pf->vsi[pf->lan_vsi]->seid) { | |
9278 | dev_info(&vsi->back->pdev->dev, | |
fb43201f | 9279 | "New VSI creation error, uplink seid of LAN VSI expected.\n"); |
79c21a82 ASJ |
9280 | return NULL; |
9281 | } | |
fa11cb3d ASJ |
9282 | /* We come up by default in VEPA mode if SRIOV is not |
9283 | * already enabled, in which case we can't force VEPA | |
9284 | * mode. | |
9285 | */ | |
9286 | if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { | |
9287 | veb->bridge_mode = BRIDGE_MODE_VEPA; | |
9288 | pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; | |
9289 | } | |
51616018 | 9290 | i40e_config_bridge_mode(veb); |
79c21a82 | 9291 | } |
41c445ff JB |
9292 | for (i = 0; i < I40E_MAX_VEB && !veb; i++) { |
9293 | if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid) | |
9294 | veb = pf->veb[i]; | |
9295 | } | |
9296 | if (!veb) { | |
9297 | dev_info(&pf->pdev->dev, "couldn't add VEB\n"); | |
9298 | return NULL; | |
9299 | } | |
9300 | ||
9301 | vsi->flags |= I40E_VSI_FLAG_VEB_OWNER; | |
9302 | uplink_seid = veb->seid; | |
9303 | } | |
9304 | ||
9305 | /* get vsi sw struct */ | |
9306 | v_idx = i40e_vsi_mem_alloc(pf, type); | |
9307 | if (v_idx < 0) | |
9308 | goto err_alloc; | |
9309 | vsi = pf->vsi[v_idx]; | |
cbf61325 ASJ |
9310 | if (!vsi) |
9311 | goto err_alloc; | |
41c445ff JB |
9312 | vsi->type = type; |
9313 | vsi->veb_idx = (veb ? veb->idx : I40E_NO_VEB); | |
9314 | ||
9315 | if (type == I40E_VSI_MAIN) | |
9316 | pf->lan_vsi = v_idx; | |
9317 | else if (type == I40E_VSI_SRIOV) | |
9318 | vsi->vf_id = param1; | |
9319 | /* assign it some queues */ | |
cbf61325 ASJ |
9320 | ret = i40e_get_lump(pf, pf->qp_pile, vsi->alloc_queue_pairs, |
9321 | vsi->idx); | |
41c445ff | 9322 | if (ret < 0) { |
049a2be8 SN |
9323 | dev_info(&pf->pdev->dev, |
9324 | "failed to get tracking for %d queues for VSI %d err=%d\n", | |
9325 | vsi->alloc_queue_pairs, vsi->seid, ret); | |
41c445ff JB |
9326 | goto err_vsi; |
9327 | } | |
9328 | vsi->base_queue = ret; | |
9329 | ||
9330 | /* get a VSI from the hardware */ | |
9331 | vsi->uplink_seid = uplink_seid; | |
9332 | ret = i40e_add_vsi(vsi); | |
9333 | if (ret) | |
9334 | goto err_vsi; | |
9335 | ||
9336 | switch (vsi->type) { | |
9337 | /* setup the netdev if needed */ | |
9338 | case I40E_VSI_MAIN: | |
9339 | case I40E_VSI_VMDQ2: | |
38e00438 | 9340 | case I40E_VSI_FCOE: |
41c445ff JB |
9341 | ret = i40e_config_netdev(vsi); |
9342 | if (ret) | |
9343 | goto err_netdev; | |
9344 | ret = register_netdev(vsi->netdev); | |
9345 | if (ret) | |
9346 | goto err_netdev; | |
9347 | vsi->netdev_registered = true; | |
9348 | netif_carrier_off(vsi->netdev); | |
4e3b35b0 NP |
9349 | #ifdef CONFIG_I40E_DCB |
9350 | /* Setup DCB netlink interface */ | |
9351 | i40e_dcbnl_setup(vsi); | |
9352 | #endif /* CONFIG_I40E_DCB */ | |
41c445ff JB |
9353 | /* fall through */ |
9354 | ||
9355 | case I40E_VSI_FDIR: | |
9356 | /* set up vectors and rings if needed */ | |
9357 | ret = i40e_vsi_setup_vectors(vsi); | |
9358 | if (ret) | |
9359 | goto err_msix; | |
9360 | ||
9361 | ret = i40e_alloc_rings(vsi); | |
9362 | if (ret) | |
9363 | goto err_rings; | |
9364 | ||
9365 | /* map all of the rings to the q_vectors */ | |
9366 | i40e_vsi_map_rings_to_vectors(vsi); | |
9367 | ||
9368 | i40e_vsi_reset_stats(vsi); | |
9369 | break; | |
9370 | ||
9371 | default: | |
9372 | /* no netdev or rings for the other VSI types */ | |
9373 | break; | |
9374 | } | |
9375 | ||
e25d00b8 ASJ |
9376 | if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) && |
9377 | (vsi->type == I40E_VSI_VMDQ2)) { | |
9378 | ret = i40e_vsi_config_rss(vsi); | |
9379 | } | |
41c445ff JB |
9380 | return vsi; |
9381 | ||
9382 | err_rings: | |
9383 | i40e_vsi_free_q_vectors(vsi); | |
9384 | err_msix: | |
9385 | if (vsi->netdev_registered) { | |
9386 | vsi->netdev_registered = false; | |
9387 | unregister_netdev(vsi->netdev); | |
9388 | free_netdev(vsi->netdev); | |
9389 | vsi->netdev = NULL; | |
9390 | } | |
9391 | err_netdev: | |
9392 | i40e_aq_delete_element(&pf->hw, vsi->seid, NULL); | |
9393 | err_vsi: | |
9394 | i40e_vsi_clear(vsi); | |
9395 | err_alloc: | |
9396 | return NULL; | |
9397 | } | |
9398 | ||
9399 | /** | |
9400 | * i40e_veb_get_bw_info - Query VEB BW information | |
9401 | * @veb: the veb to query | |
9402 | * | |
9403 | * Query the Tx scheduler BW configuration data for given VEB | |
9404 | **/ | |
9405 | static int i40e_veb_get_bw_info(struct i40e_veb *veb) | |
9406 | { | |
9407 | struct i40e_aqc_query_switching_comp_ets_config_resp ets_data; | |
9408 | struct i40e_aqc_query_switching_comp_bw_config_resp bw_data; | |
9409 | struct i40e_pf *pf = veb->pf; | |
9410 | struct i40e_hw *hw = &pf->hw; | |
9411 | u32 tc_bw_max; | |
9412 | int ret = 0; | |
9413 | int i; | |
9414 | ||
9415 | ret = i40e_aq_query_switch_comp_bw_config(hw, veb->seid, | |
9416 | &bw_data, NULL); | |
9417 | if (ret) { | |
9418 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
9419 | "query veb bw config failed, err %s aq_err %s\n", |
9420 | i40e_stat_str(&pf->hw, ret), | |
9421 | i40e_aq_str(&pf->hw, hw->aq.asq_last_status)); | |
41c445ff JB |
9422 | goto out; |
9423 | } | |
9424 | ||
9425 | ret = i40e_aq_query_switch_comp_ets_config(hw, veb->seid, | |
9426 | &ets_data, NULL); | |
9427 | if (ret) { | |
9428 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
9429 | "query veb bw ets config failed, err %s aq_err %s\n", |
9430 | i40e_stat_str(&pf->hw, ret), | |
9431 | i40e_aq_str(&pf->hw, hw->aq.asq_last_status)); | |
41c445ff JB |
9432 | goto out; |
9433 | } | |
9434 | ||
9435 | veb->bw_limit = le16_to_cpu(ets_data.port_bw_limit); | |
9436 | veb->bw_max_quanta = ets_data.tc_bw_max; | |
9437 | veb->is_abs_credits = bw_data.absolute_credits_enable; | |
23cd1f09 | 9438 | veb->enabled_tc = ets_data.tc_valid_bits; |
41c445ff JB |
9439 | tc_bw_max = le16_to_cpu(bw_data.tc_bw_max[0]) | |
9440 | (le16_to_cpu(bw_data.tc_bw_max[1]) << 16); | |
9441 | for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { | |
9442 | veb->bw_tc_share_credits[i] = bw_data.tc_bw_share_credits[i]; | |
9443 | veb->bw_tc_limit_credits[i] = | |
9444 | le16_to_cpu(bw_data.tc_bw_limits[i]); | |
9445 | veb->bw_tc_max_quanta[i] = ((tc_bw_max >> (i*4)) & 0x7); | |
9446 | } | |
9447 | ||
9448 | out: | |
9449 | return ret; | |
9450 | } | |
9451 | ||
9452 | /** | |
9453 | * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF | |
9454 | * @pf: board private structure | |
9455 | * | |
9456 | * On error: returns error code (negative) | |
9457 | * On success: returns vsi index in PF (positive) | |
9458 | **/ | |
9459 | static int i40e_veb_mem_alloc(struct i40e_pf *pf) | |
9460 | { | |
9461 | int ret = -ENOENT; | |
9462 | struct i40e_veb *veb; | |
9463 | int i; | |
9464 | ||
9465 | /* Need to protect the allocation of switch elements at the PF level */ | |
9466 | mutex_lock(&pf->switch_mutex); | |
9467 | ||
9468 | /* VEB list may be fragmented if VEB creation/destruction has | |
9469 | * been happening. We can afford to do a quick scan to look | |
9470 | * for any free slots in the list. | |
9471 | * | |
9472 | * find next empty veb slot, looping back around if necessary | |
9473 | */ | |
9474 | i = 0; | |
9475 | while ((i < I40E_MAX_VEB) && (pf->veb[i] != NULL)) | |
9476 | i++; | |
9477 | if (i >= I40E_MAX_VEB) { | |
9478 | ret = -ENOMEM; | |
9479 | goto err_alloc_veb; /* out of VEB slots! */ | |
9480 | } | |
9481 | ||
9482 | veb = kzalloc(sizeof(*veb), GFP_KERNEL); | |
9483 | if (!veb) { | |
9484 | ret = -ENOMEM; | |
9485 | goto err_alloc_veb; | |
9486 | } | |
9487 | veb->pf = pf; | |
9488 | veb->idx = i; | |
9489 | veb->enabled_tc = 1; | |
9490 | ||
9491 | pf->veb[i] = veb; | |
9492 | ret = i; | |
9493 | err_alloc_veb: | |
9494 | mutex_unlock(&pf->switch_mutex); | |
9495 | return ret; | |
9496 | } | |
9497 | ||
9498 | /** | |
9499 | * i40e_switch_branch_release - Delete a branch of the switch tree | |
9500 | * @branch: where to start deleting | |
9501 | * | |
9502 | * This uses recursion to find the tips of the branch to be | |
9503 | * removed, deleting until we get back to and can delete this VEB. | |
9504 | **/ | |
9505 | static void i40e_switch_branch_release(struct i40e_veb *branch) | |
9506 | { | |
9507 | struct i40e_pf *pf = branch->pf; | |
9508 | u16 branch_seid = branch->seid; | |
9509 | u16 veb_idx = branch->idx; | |
9510 | int i; | |
9511 | ||
9512 | /* release any VEBs on this VEB - RECURSION */ | |
9513 | for (i = 0; i < I40E_MAX_VEB; i++) { | |
9514 | if (!pf->veb[i]) | |
9515 | continue; | |
9516 | if (pf->veb[i]->uplink_seid == branch->seid) | |
9517 | i40e_switch_branch_release(pf->veb[i]); | |
9518 | } | |
9519 | ||
9520 | /* Release the VSIs on this VEB, but not the owner VSI. | |
9521 | * | |
9522 | * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing | |
9523 | * the VEB itself, so don't use (*branch) after this loop. | |
9524 | */ | |
505682cd | 9525 | for (i = 0; i < pf->num_alloc_vsi; i++) { |
41c445ff JB |
9526 | if (!pf->vsi[i]) |
9527 | continue; | |
9528 | if (pf->vsi[i]->uplink_seid == branch_seid && | |
9529 | (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) { | |
9530 | i40e_vsi_release(pf->vsi[i]); | |
9531 | } | |
9532 | } | |
9533 | ||
9534 | /* There's one corner case where the VEB might not have been | |
9535 | * removed, so double check it here and remove it if needed. | |
9536 | * This case happens if the veb was created from the debugfs | |
9537 | * commands and no VSIs were added to it. | |
9538 | */ | |
9539 | if (pf->veb[veb_idx]) | |
9540 | i40e_veb_release(pf->veb[veb_idx]); | |
9541 | } | |
9542 | ||
9543 | /** | |
9544 | * i40e_veb_clear - remove veb struct | |
9545 | * @veb: the veb to remove | |
9546 | **/ | |
9547 | static void i40e_veb_clear(struct i40e_veb *veb) | |
9548 | { | |
9549 | if (!veb) | |
9550 | return; | |
9551 | ||
9552 | if (veb->pf) { | |
9553 | struct i40e_pf *pf = veb->pf; | |
9554 | ||
9555 | mutex_lock(&pf->switch_mutex); | |
9556 | if (pf->veb[veb->idx] == veb) | |
9557 | pf->veb[veb->idx] = NULL; | |
9558 | mutex_unlock(&pf->switch_mutex); | |
9559 | } | |
9560 | ||
9561 | kfree(veb); | |
9562 | } | |
9563 | ||
9564 | /** | |
9565 | * i40e_veb_release - Delete a VEB and free its resources | |
9566 | * @veb: the VEB being removed | |
9567 | **/ | |
9568 | void i40e_veb_release(struct i40e_veb *veb) | |
9569 | { | |
9570 | struct i40e_vsi *vsi = NULL; | |
9571 | struct i40e_pf *pf; | |
9572 | int i, n = 0; | |
9573 | ||
9574 | pf = veb->pf; | |
9575 | ||
9576 | /* find the remaining VSI and check for extras */ | |
505682cd | 9577 | for (i = 0; i < pf->num_alloc_vsi; i++) { |
41c445ff JB |
9578 | if (pf->vsi[i] && pf->vsi[i]->uplink_seid == veb->seid) { |
9579 | n++; | |
9580 | vsi = pf->vsi[i]; | |
9581 | } | |
9582 | } | |
9583 | if (n != 1) { | |
9584 | dev_info(&pf->pdev->dev, | |
9585 | "can't remove VEB %d with %d VSIs left\n", | |
9586 | veb->seid, n); | |
9587 | return; | |
9588 | } | |
9589 | ||
9590 | /* move the remaining VSI to uplink veb */ | |
9591 | vsi->flags &= ~I40E_VSI_FLAG_VEB_OWNER; | |
9592 | if (veb->uplink_seid) { | |
9593 | vsi->uplink_seid = veb->uplink_seid; | |
9594 | if (veb->uplink_seid == pf->mac_seid) | |
9595 | vsi->veb_idx = I40E_NO_VEB; | |
9596 | else | |
9597 | vsi->veb_idx = veb->veb_idx; | |
9598 | } else { | |
9599 | /* floating VEB */ | |
9600 | vsi->uplink_seid = pf->vsi[pf->lan_vsi]->uplink_seid; | |
9601 | vsi->veb_idx = pf->vsi[pf->lan_vsi]->veb_idx; | |
9602 | } | |
9603 | ||
9604 | i40e_aq_delete_element(&pf->hw, veb->seid, NULL); | |
9605 | i40e_veb_clear(veb); | |
41c445ff JB |
9606 | } |
9607 | ||
9608 | /** | |
9609 | * i40e_add_veb - create the VEB in the switch | |
9610 | * @veb: the VEB to be instantiated | |
9611 | * @vsi: the controlling VSI | |
9612 | **/ | |
9613 | static int i40e_add_veb(struct i40e_veb *veb, struct i40e_vsi *vsi) | |
9614 | { | |
f1c7e72e | 9615 | struct i40e_pf *pf = veb->pf; |
92faef85 | 9616 | bool is_default = veb->pf->cur_promisc; |
e1c51b95 | 9617 | bool is_cloud = false; |
41c445ff JB |
9618 | int ret; |
9619 | ||
9620 | /* get a VEB from the hardware */ | |
f1c7e72e | 9621 | ret = i40e_aq_add_veb(&pf->hw, veb->uplink_seid, vsi->seid, |
e1c51b95 KS |
9622 | veb->enabled_tc, is_default, |
9623 | is_cloud, &veb->seid, NULL); | |
41c445ff | 9624 | if (ret) { |
f1c7e72e SN |
9625 | dev_info(&pf->pdev->dev, |
9626 | "couldn't add VEB, err %s aq_err %s\n", | |
9627 | i40e_stat_str(&pf->hw, ret), | |
9628 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
41c445ff JB |
9629 | return -EPERM; |
9630 | } | |
9631 | ||
9632 | /* get statistics counter */ | |
f1c7e72e | 9633 | ret = i40e_aq_get_veb_parameters(&pf->hw, veb->seid, NULL, NULL, |
41c445ff JB |
9634 | &veb->stats_idx, NULL, NULL, NULL); |
9635 | if (ret) { | |
f1c7e72e SN |
9636 | dev_info(&pf->pdev->dev, |
9637 | "couldn't get VEB statistics idx, err %s aq_err %s\n", | |
9638 | i40e_stat_str(&pf->hw, ret), | |
9639 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
41c445ff JB |
9640 | return -EPERM; |
9641 | } | |
9642 | ret = i40e_veb_get_bw_info(veb); | |
9643 | if (ret) { | |
f1c7e72e SN |
9644 | dev_info(&pf->pdev->dev, |
9645 | "couldn't get VEB bw info, err %s aq_err %s\n", | |
9646 | i40e_stat_str(&pf->hw, ret), | |
9647 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
9648 | i40e_aq_delete_element(&pf->hw, veb->seid, NULL); | |
41c445ff JB |
9649 | return -ENOENT; |
9650 | } | |
9651 | ||
9652 | vsi->uplink_seid = veb->seid; | |
9653 | vsi->veb_idx = veb->idx; | |
9654 | vsi->flags |= I40E_VSI_FLAG_VEB_OWNER; | |
9655 | ||
9656 | return 0; | |
9657 | } | |
9658 | ||
9659 | /** | |
9660 | * i40e_veb_setup - Set up a VEB | |
9661 | * @pf: board private structure | |
9662 | * @flags: VEB setup flags | |
9663 | * @uplink_seid: the switch element to link to | |
9664 | * @vsi_seid: the initial VSI seid | |
9665 | * @enabled_tc: Enabled TC bit-map | |
9666 | * | |
9667 | * This allocates the sw VEB structure and links it into the switch | |
9668 | * It is possible and legal for this to be a duplicate of an already | |
9669 | * existing VEB. It is also possible for both uplink and vsi seids | |
9670 | * to be zero, in order to create a floating VEB. | |
9671 | * | |
9672 | * Returns pointer to the successfully allocated VEB sw struct on | |
9673 | * success, otherwise returns NULL on failure. | |
9674 | **/ | |
9675 | struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, | |
9676 | u16 uplink_seid, u16 vsi_seid, | |
9677 | u8 enabled_tc) | |
9678 | { | |
9679 | struct i40e_veb *veb, *uplink_veb = NULL; | |
9680 | int vsi_idx, veb_idx; | |
9681 | int ret; | |
9682 | ||
9683 | /* if one seid is 0, the other must be 0 to create a floating relay */ | |
9684 | if ((uplink_seid == 0 || vsi_seid == 0) && | |
9685 | (uplink_seid + vsi_seid != 0)) { | |
9686 | dev_info(&pf->pdev->dev, | |
9687 | "one, not both seid's are 0: uplink=%d vsi=%d\n", | |
9688 | uplink_seid, vsi_seid); | |
9689 | return NULL; | |
9690 | } | |
9691 | ||
9692 | /* make sure there is such a vsi and uplink */ | |
505682cd | 9693 | for (vsi_idx = 0; vsi_idx < pf->num_alloc_vsi; vsi_idx++) |
41c445ff JB |
9694 | if (pf->vsi[vsi_idx] && pf->vsi[vsi_idx]->seid == vsi_seid) |
9695 | break; | |
505682cd | 9696 | if (vsi_idx >= pf->num_alloc_vsi && vsi_seid != 0) { |
41c445ff JB |
9697 | dev_info(&pf->pdev->dev, "vsi seid %d not found\n", |
9698 | vsi_seid); | |
9699 | return NULL; | |
9700 | } | |
9701 | ||
9702 | if (uplink_seid && uplink_seid != pf->mac_seid) { | |
9703 | for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) { | |
9704 | if (pf->veb[veb_idx] && | |
9705 | pf->veb[veb_idx]->seid == uplink_seid) { | |
9706 | uplink_veb = pf->veb[veb_idx]; | |
9707 | break; | |
9708 | } | |
9709 | } | |
9710 | if (!uplink_veb) { | |
9711 | dev_info(&pf->pdev->dev, | |
9712 | "uplink seid %d not found\n", uplink_seid); | |
9713 | return NULL; | |
9714 | } | |
9715 | } | |
9716 | ||
9717 | /* get veb sw struct */ | |
9718 | veb_idx = i40e_veb_mem_alloc(pf); | |
9719 | if (veb_idx < 0) | |
9720 | goto err_alloc; | |
9721 | veb = pf->veb[veb_idx]; | |
9722 | veb->flags = flags; | |
9723 | veb->uplink_seid = uplink_seid; | |
9724 | veb->veb_idx = (uplink_veb ? uplink_veb->idx : I40E_NO_VEB); | |
9725 | veb->enabled_tc = (enabled_tc ? enabled_tc : 0x1); | |
9726 | ||
9727 | /* create the VEB in the switch */ | |
9728 | ret = i40e_add_veb(veb, pf->vsi[vsi_idx]); | |
9729 | if (ret) | |
9730 | goto err_veb; | |
1bb8b935 SN |
9731 | if (vsi_idx == pf->lan_vsi) |
9732 | pf->lan_veb = veb->idx; | |
41c445ff JB |
9733 | |
9734 | return veb; | |
9735 | ||
9736 | err_veb: | |
9737 | i40e_veb_clear(veb); | |
9738 | err_alloc: | |
9739 | return NULL; | |
9740 | } | |
9741 | ||
9742 | /** | |
b40c82e6 | 9743 | * i40e_setup_pf_switch_element - set PF vars based on switch type |
41c445ff JB |
9744 | * @pf: board private structure |
9745 | * @ele: element we are building info from | |
9746 | * @num_reported: total number of elements | |
9747 | * @printconfig: should we print the contents | |
9748 | * | |
9749 | * helper function to assist in extracting a few useful SEID values. | |
9750 | **/ | |
9751 | static void i40e_setup_pf_switch_element(struct i40e_pf *pf, | |
9752 | struct i40e_aqc_switch_config_element_resp *ele, | |
9753 | u16 num_reported, bool printconfig) | |
9754 | { | |
9755 | u16 downlink_seid = le16_to_cpu(ele->downlink_seid); | |
9756 | u16 uplink_seid = le16_to_cpu(ele->uplink_seid); | |
9757 | u8 element_type = ele->element_type; | |
9758 | u16 seid = le16_to_cpu(ele->seid); | |
9759 | ||
9760 | if (printconfig) | |
9761 | dev_info(&pf->pdev->dev, | |
9762 | "type=%d seid=%d uplink=%d downlink=%d\n", | |
9763 | element_type, seid, uplink_seid, downlink_seid); | |
9764 | ||
9765 | switch (element_type) { | |
9766 | case I40E_SWITCH_ELEMENT_TYPE_MAC: | |
9767 | pf->mac_seid = seid; | |
9768 | break; | |
9769 | case I40E_SWITCH_ELEMENT_TYPE_VEB: | |
9770 | /* Main VEB? */ | |
9771 | if (uplink_seid != pf->mac_seid) | |
9772 | break; | |
9773 | if (pf->lan_veb == I40E_NO_VEB) { | |
9774 | int v; | |
9775 | ||
9776 | /* find existing or else empty VEB */ | |
9777 | for (v = 0; v < I40E_MAX_VEB; v++) { | |
9778 | if (pf->veb[v] && (pf->veb[v]->seid == seid)) { | |
9779 | pf->lan_veb = v; | |
9780 | break; | |
9781 | } | |
9782 | } | |
9783 | if (pf->lan_veb == I40E_NO_VEB) { | |
9784 | v = i40e_veb_mem_alloc(pf); | |
9785 | if (v < 0) | |
9786 | break; | |
9787 | pf->lan_veb = v; | |
9788 | } | |
9789 | } | |
9790 | ||
9791 | pf->veb[pf->lan_veb]->seid = seid; | |
9792 | pf->veb[pf->lan_veb]->uplink_seid = pf->mac_seid; | |
9793 | pf->veb[pf->lan_veb]->pf = pf; | |
9794 | pf->veb[pf->lan_veb]->veb_idx = I40E_NO_VEB; | |
9795 | break; | |
9796 | case I40E_SWITCH_ELEMENT_TYPE_VSI: | |
9797 | if (num_reported != 1) | |
9798 | break; | |
9799 | /* This is immediately after a reset so we can assume this is | |
9800 | * the PF's VSI | |
9801 | */ | |
9802 | pf->mac_seid = uplink_seid; | |
9803 | pf->pf_seid = downlink_seid; | |
9804 | pf->main_vsi_seid = seid; | |
9805 | if (printconfig) | |
9806 | dev_info(&pf->pdev->dev, | |
9807 | "pf_seid=%d main_vsi_seid=%d\n", | |
9808 | pf->pf_seid, pf->main_vsi_seid); | |
9809 | break; | |
9810 | case I40E_SWITCH_ELEMENT_TYPE_PF: | |
9811 | case I40E_SWITCH_ELEMENT_TYPE_VF: | |
9812 | case I40E_SWITCH_ELEMENT_TYPE_EMP: | |
9813 | case I40E_SWITCH_ELEMENT_TYPE_BMC: | |
9814 | case I40E_SWITCH_ELEMENT_TYPE_PE: | |
9815 | case I40E_SWITCH_ELEMENT_TYPE_PA: | |
9816 | /* ignore these for now */ | |
9817 | break; | |
9818 | default: | |
9819 | dev_info(&pf->pdev->dev, "unknown element type=%d seid=%d\n", | |
9820 | element_type, seid); | |
9821 | break; | |
9822 | } | |
9823 | } | |
9824 | ||
9825 | /** | |
9826 | * i40e_fetch_switch_configuration - Get switch config from firmware | |
9827 | * @pf: board private structure | |
9828 | * @printconfig: should we print the contents | |
9829 | * | |
9830 | * Get the current switch configuration from the device and | |
9831 | * extract a few useful SEID values. | |
9832 | **/ | |
9833 | int i40e_fetch_switch_configuration(struct i40e_pf *pf, bool printconfig) | |
9834 | { | |
9835 | struct i40e_aqc_get_switch_config_resp *sw_config; | |
9836 | u16 next_seid = 0; | |
9837 | int ret = 0; | |
9838 | u8 *aq_buf; | |
9839 | int i; | |
9840 | ||
9841 | aq_buf = kzalloc(I40E_AQ_LARGE_BUF, GFP_KERNEL); | |
9842 | if (!aq_buf) | |
9843 | return -ENOMEM; | |
9844 | ||
9845 | sw_config = (struct i40e_aqc_get_switch_config_resp *)aq_buf; | |
9846 | do { | |
9847 | u16 num_reported, num_total; | |
9848 | ||
9849 | ret = i40e_aq_get_switch_config(&pf->hw, sw_config, | |
9850 | I40E_AQ_LARGE_BUF, | |
9851 | &next_seid, NULL); | |
9852 | if (ret) { | |
9853 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
9854 | "get switch config failed err %s aq_err %s\n", |
9855 | i40e_stat_str(&pf->hw, ret), | |
9856 | i40e_aq_str(&pf->hw, | |
9857 | pf->hw.aq.asq_last_status)); | |
41c445ff JB |
9858 | kfree(aq_buf); |
9859 | return -ENOENT; | |
9860 | } | |
9861 | ||
9862 | num_reported = le16_to_cpu(sw_config->header.num_reported); | |
9863 | num_total = le16_to_cpu(sw_config->header.num_total); | |
9864 | ||
9865 | if (printconfig) | |
9866 | dev_info(&pf->pdev->dev, | |
9867 | "header: %d reported %d total\n", | |
9868 | num_reported, num_total); | |
9869 | ||
41c445ff JB |
9870 | for (i = 0; i < num_reported; i++) { |
9871 | struct i40e_aqc_switch_config_element_resp *ele = | |
9872 | &sw_config->element[i]; | |
9873 | ||
9874 | i40e_setup_pf_switch_element(pf, ele, num_reported, | |
9875 | printconfig); | |
9876 | } | |
9877 | } while (next_seid != 0); | |
9878 | ||
9879 | kfree(aq_buf); | |
9880 | return ret; | |
9881 | } | |
9882 | ||
9883 | /** | |
9884 | * i40e_setup_pf_switch - Setup the HW switch on startup or after reset | |
9885 | * @pf: board private structure | |
bc7d338f | 9886 | * @reinit: if the Main VSI needs to re-initialized. |
41c445ff JB |
9887 | * |
9888 | * Returns 0 on success, negative value on failure | |
9889 | **/ | |
bc7d338f | 9890 | static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit) |
41c445ff JB |
9891 | { |
9892 | int ret; | |
9893 | ||
9894 | /* find out what's out there already */ | |
9895 | ret = i40e_fetch_switch_configuration(pf, false); | |
9896 | if (ret) { | |
9897 | dev_info(&pf->pdev->dev, | |
f1c7e72e SN |
9898 | "couldn't fetch switch config, err %s aq_err %s\n", |
9899 | i40e_stat_str(&pf->hw, ret), | |
9900 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
41c445ff JB |
9901 | return ret; |
9902 | } | |
9903 | i40e_pf_reset_stats(pf); | |
9904 | ||
41c445ff | 9905 | /* first time setup */ |
bc7d338f | 9906 | if (pf->lan_vsi == I40E_NO_VSI || reinit) { |
41c445ff JB |
9907 | struct i40e_vsi *vsi = NULL; |
9908 | u16 uplink_seid; | |
9909 | ||
9910 | /* Set up the PF VSI associated with the PF's main VSI | |
9911 | * that is already in the HW switch | |
9912 | */ | |
9913 | if (pf->lan_veb != I40E_NO_VEB && pf->veb[pf->lan_veb]) | |
9914 | uplink_seid = pf->veb[pf->lan_veb]->seid; | |
9915 | else | |
9916 | uplink_seid = pf->mac_seid; | |
bc7d338f ASJ |
9917 | if (pf->lan_vsi == I40E_NO_VSI) |
9918 | vsi = i40e_vsi_setup(pf, I40E_VSI_MAIN, uplink_seid, 0); | |
9919 | else if (reinit) | |
9920 | vsi = i40e_vsi_reinit_setup(pf->vsi[pf->lan_vsi]); | |
41c445ff JB |
9921 | if (!vsi) { |
9922 | dev_info(&pf->pdev->dev, "setup of MAIN VSI failed\n"); | |
9923 | i40e_fdir_teardown(pf); | |
9924 | return -EAGAIN; | |
9925 | } | |
41c445ff JB |
9926 | } else { |
9927 | /* force a reset of TC and queue layout configurations */ | |
9928 | u8 enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc; | |
6995b36c | 9929 | |
41c445ff JB |
9930 | pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0; |
9931 | pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid; | |
9932 | i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc); | |
9933 | } | |
9934 | i40e_vlan_stripping_disable(pf->vsi[pf->lan_vsi]); | |
9935 | ||
cbf61325 ASJ |
9936 | i40e_fdir_sb_setup(pf); |
9937 | ||
41c445ff JB |
9938 | /* Setup static PF queue filter control settings */ |
9939 | ret = i40e_setup_pf_filter_control(pf); | |
9940 | if (ret) { | |
9941 | dev_info(&pf->pdev->dev, "setup_pf_filter_control failed: %d\n", | |
9942 | ret); | |
9943 | /* Failure here should not stop continuing other steps */ | |
9944 | } | |
9945 | ||
9946 | /* enable RSS in the HW, even for only one queue, as the stack can use | |
9947 | * the hash | |
9948 | */ | |
9949 | if ((pf->flags & I40E_FLAG_RSS_ENABLED)) | |
9950 | i40e_config_rss(pf); | |
9951 | ||
9952 | /* fill in link information and enable LSE reporting */ | |
0a862b43 | 9953 | i40e_update_link_info(&pf->hw); |
a34a6711 MW |
9954 | i40e_link_event(pf); |
9955 | ||
d52c20b7 | 9956 | /* Initialize user-specific link properties */ |
41c445ff JB |
9957 | pf->fc_autoneg_status = ((pf->hw.phy.link_info.an_info & |
9958 | I40E_AQ_AN_COMPLETED) ? true : false); | |
d52c20b7 | 9959 | |
beb0dff1 JK |
9960 | i40e_ptp_init(pf); |
9961 | ||
41c445ff JB |
9962 | return ret; |
9963 | } | |
9964 | ||
41c445ff JB |
9965 | /** |
9966 | * i40e_determine_queue_usage - Work out queue distribution | |
9967 | * @pf: board private structure | |
9968 | **/ | |
9969 | static void i40e_determine_queue_usage(struct i40e_pf *pf) | |
9970 | { | |
41c445ff JB |
9971 | int queues_left; |
9972 | ||
9973 | pf->num_lan_qps = 0; | |
38e00438 VD |
9974 | #ifdef I40E_FCOE |
9975 | pf->num_fcoe_qps = 0; | |
9976 | #endif | |
41c445ff JB |
9977 | |
9978 | /* Find the max queues to be put into basic use. We'll always be | |
9979 | * using TC0, whether or not DCB is running, and TC0 will get the | |
9980 | * big RSS set. | |
9981 | */ | |
9982 | queues_left = pf->hw.func_caps.num_tx_qp; | |
9983 | ||
cbf61325 | 9984 | if ((queues_left == 1) || |
9aa7e935 | 9985 | !(pf->flags & I40E_FLAG_MSIX_ENABLED)) { |
41c445ff JB |
9986 | /* one qp for PF, no queues for anything else */ |
9987 | queues_left = 0; | |
9988 | pf->rss_size = pf->num_lan_qps = 1; | |
9989 | ||
9990 | /* make sure all the fancies are disabled */ | |
60ea5f83 | 9991 | pf->flags &= ~(I40E_FLAG_RSS_ENABLED | |
38e00438 VD |
9992 | #ifdef I40E_FCOE |
9993 | I40E_FLAG_FCOE_ENABLED | | |
9994 | #endif | |
60ea5f83 JB |
9995 | I40E_FLAG_FD_SB_ENABLED | |
9996 | I40E_FLAG_FD_ATR_ENABLED | | |
4d9b6043 | 9997 | I40E_FLAG_DCB_CAPABLE | |
60ea5f83 JB |
9998 | I40E_FLAG_SRIOV_ENABLED | |
9999 | I40E_FLAG_VMDQ_ENABLED); | |
9aa7e935 FZ |
10000 | } else if (!(pf->flags & (I40E_FLAG_RSS_ENABLED | |
10001 | I40E_FLAG_FD_SB_ENABLED | | |
bbe7d0e0 | 10002 | I40E_FLAG_FD_ATR_ENABLED | |
4d9b6043 | 10003 | I40E_FLAG_DCB_CAPABLE))) { |
9aa7e935 FZ |
10004 | /* one qp for PF */ |
10005 | pf->rss_size = pf->num_lan_qps = 1; | |
10006 | queues_left -= pf->num_lan_qps; | |
10007 | ||
10008 | pf->flags &= ~(I40E_FLAG_RSS_ENABLED | | |
38e00438 VD |
10009 | #ifdef I40E_FCOE |
10010 | I40E_FLAG_FCOE_ENABLED | | |
10011 | #endif | |
9aa7e935 FZ |
10012 | I40E_FLAG_FD_SB_ENABLED | |
10013 | I40E_FLAG_FD_ATR_ENABLED | | |
10014 | I40E_FLAG_DCB_ENABLED | | |
10015 | I40E_FLAG_VMDQ_ENABLED); | |
41c445ff | 10016 | } else { |
cbf61325 | 10017 | /* Not enough queues for all TCs */ |
4d9b6043 | 10018 | if ((pf->flags & I40E_FLAG_DCB_CAPABLE) && |
cbf61325 | 10019 | (queues_left < I40E_MAX_TRAFFIC_CLASS)) { |
4d9b6043 | 10020 | pf->flags &= ~I40E_FLAG_DCB_CAPABLE; |
cbf61325 ASJ |
10021 | dev_info(&pf->pdev->dev, "not enough queues for DCB. DCB is disabled.\n"); |
10022 | } | |
9a3bd2f1 ASJ |
10023 | pf->num_lan_qps = max_t(int, pf->rss_size_max, |
10024 | num_online_cpus()); | |
10025 | pf->num_lan_qps = min_t(int, pf->num_lan_qps, | |
10026 | pf->hw.func_caps.num_tx_qp); | |
10027 | ||
cbf61325 ASJ |
10028 | queues_left -= pf->num_lan_qps; |
10029 | } | |
10030 | ||
38e00438 VD |
10031 | #ifdef I40E_FCOE |
10032 | if (pf->flags & I40E_FLAG_FCOE_ENABLED) { | |
10033 | if (I40E_DEFAULT_FCOE <= queues_left) { | |
10034 | pf->num_fcoe_qps = I40E_DEFAULT_FCOE; | |
10035 | } else if (I40E_MINIMUM_FCOE <= queues_left) { | |
10036 | pf->num_fcoe_qps = I40E_MINIMUM_FCOE; | |
10037 | } else { | |
10038 | pf->num_fcoe_qps = 0; | |
10039 | pf->flags &= ~I40E_FLAG_FCOE_ENABLED; | |
10040 | dev_info(&pf->pdev->dev, "not enough queues for FCoE. FCoE feature will be disabled\n"); | |
10041 | } | |
10042 | ||
10043 | queues_left -= pf->num_fcoe_qps; | |
10044 | } | |
10045 | ||
10046 | #endif | |
cbf61325 ASJ |
10047 | if (pf->flags & I40E_FLAG_FD_SB_ENABLED) { |
10048 | if (queues_left > 1) { | |
10049 | queues_left -= 1; /* save 1 queue for FD */ | |
10050 | } else { | |
10051 | pf->flags &= ~I40E_FLAG_FD_SB_ENABLED; | |
10052 | dev_info(&pf->pdev->dev, "not enough queues for Flow Director. Flow Director feature is disabled\n"); | |
10053 | } | |
41c445ff JB |
10054 | } |
10055 | ||
10056 | if ((pf->flags & I40E_FLAG_SRIOV_ENABLED) && | |
10057 | pf->num_vf_qps && pf->num_req_vfs && queues_left) { | |
cbf61325 ASJ |
10058 | pf->num_req_vfs = min_t(int, pf->num_req_vfs, |
10059 | (queues_left / pf->num_vf_qps)); | |
41c445ff JB |
10060 | queues_left -= (pf->num_req_vfs * pf->num_vf_qps); |
10061 | } | |
10062 | ||
10063 | if ((pf->flags & I40E_FLAG_VMDQ_ENABLED) && | |
10064 | pf->num_vmdq_vsis && pf->num_vmdq_qps && queues_left) { | |
10065 | pf->num_vmdq_vsis = min_t(int, pf->num_vmdq_vsis, | |
10066 | (queues_left / pf->num_vmdq_qps)); | |
10067 | queues_left -= (pf->num_vmdq_vsis * pf->num_vmdq_qps); | |
10068 | } | |
10069 | ||
f8ff1464 | 10070 | pf->queues_left = queues_left; |
8279e495 NP |
10071 | dev_dbg(&pf->pdev->dev, |
10072 | "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n", | |
10073 | pf->hw.func_caps.num_tx_qp, | |
10074 | !!(pf->flags & I40E_FLAG_FD_SB_ENABLED), | |
10075 | pf->num_lan_qps, pf->rss_size, pf->num_req_vfs, pf->num_vf_qps, | |
10076 | pf->num_vmdq_vsis, pf->num_vmdq_qps, queues_left); | |
38e00438 | 10077 | #ifdef I40E_FCOE |
8279e495 | 10078 | dev_dbg(&pf->pdev->dev, "fcoe queues = %d\n", pf->num_fcoe_qps); |
38e00438 | 10079 | #endif |
41c445ff JB |
10080 | } |
10081 | ||
10082 | /** | |
10083 | * i40e_setup_pf_filter_control - Setup PF static filter control | |
10084 | * @pf: PF to be setup | |
10085 | * | |
b40c82e6 | 10086 | * i40e_setup_pf_filter_control sets up a PF's initial filter control |
41c445ff JB |
10087 | * settings. If PE/FCoE are enabled then it will also set the per PF |
10088 | * based filter sizes required for them. It also enables Flow director, | |
10089 | * ethertype and macvlan type filter settings for the pf. | |
10090 | * | |
10091 | * Returns 0 on success, negative on failure | |
10092 | **/ | |
10093 | static int i40e_setup_pf_filter_control(struct i40e_pf *pf) | |
10094 | { | |
10095 | struct i40e_filter_control_settings *settings = &pf->filter_settings; | |
10096 | ||
10097 | settings->hash_lut_size = I40E_HASH_LUT_SIZE_128; | |
10098 | ||
10099 | /* Flow Director is enabled */ | |
60ea5f83 | 10100 | if (pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)) |
41c445ff JB |
10101 | settings->enable_fdir = true; |
10102 | ||
10103 | /* Ethtype and MACVLAN filters enabled for PF */ | |
10104 | settings->enable_ethtype = true; | |
10105 | settings->enable_macvlan = true; | |
10106 | ||
10107 | if (i40e_set_filter_control(&pf->hw, settings)) | |
10108 | return -ENOENT; | |
10109 | ||
10110 | return 0; | |
10111 | } | |
10112 | ||
0c22b3dd JB |
10113 | #define INFO_STRING_LEN 255 |
10114 | static void i40e_print_features(struct i40e_pf *pf) | |
10115 | { | |
10116 | struct i40e_hw *hw = &pf->hw; | |
10117 | char *buf, *string; | |
10118 | ||
10119 | string = kzalloc(INFO_STRING_LEN, GFP_KERNEL); | |
10120 | if (!string) { | |
10121 | dev_err(&pf->pdev->dev, "Features string allocation failed\n"); | |
10122 | return; | |
10123 | } | |
10124 | ||
10125 | buf = string; | |
10126 | ||
10127 | buf += sprintf(string, "Features: PF-id[%d] ", hw->pf_id); | |
10128 | #ifdef CONFIG_PCI_IOV | |
10129 | buf += sprintf(buf, "VFs: %d ", pf->num_req_vfs); | |
10130 | #endif | |
aba237d1 MW |
10131 | buf += sprintf(buf, "VSIs: %d QP: %d RX: %s ", |
10132 | pf->hw.func_caps.num_vsis, | |
10133 | pf->vsi[pf->lan_vsi]->num_queue_pairs, | |
10134 | pf->flags & I40E_FLAG_RX_PS_ENABLED ? "PS" : "1BUF"); | |
0c22b3dd JB |
10135 | |
10136 | if (pf->flags & I40E_FLAG_RSS_ENABLED) | |
10137 | buf += sprintf(buf, "RSS "); | |
0c22b3dd | 10138 | if (pf->flags & I40E_FLAG_FD_ATR_ENABLED) |
c6423ff1 AA |
10139 | buf += sprintf(buf, "FD_ATR "); |
10140 | if (pf->flags & I40E_FLAG_FD_SB_ENABLED) { | |
10141 | buf += sprintf(buf, "FD_SB "); | |
0c22b3dd | 10142 | buf += sprintf(buf, "NTUPLE "); |
c6423ff1 | 10143 | } |
4d9b6043 | 10144 | if (pf->flags & I40E_FLAG_DCB_CAPABLE) |
0c22b3dd | 10145 | buf += sprintf(buf, "DCB "); |
ce6fcb3f JB |
10146 | #if IS_ENABLED(CONFIG_VXLAN) |
10147 | buf += sprintf(buf, "VxLAN "); | |
10148 | #endif | |
0c22b3dd JB |
10149 | if (pf->flags & I40E_FLAG_PTP) |
10150 | buf += sprintf(buf, "PTP "); | |
38e00438 VD |
10151 | #ifdef I40E_FCOE |
10152 | if (pf->flags & I40E_FLAG_FCOE_ENABLED) | |
10153 | buf += sprintf(buf, "FCOE "); | |
10154 | #endif | |
6dec1017 SN |
10155 | if (pf->flags & I40E_FLAG_VEB_MODE_ENABLED) |
10156 | buf += sprintf(buf, "VEB "); | |
10157 | else | |
10158 | buf += sprintf(buf, "VEPA "); | |
0c22b3dd JB |
10159 | |
10160 | BUG_ON(buf > (string + INFO_STRING_LEN)); | |
10161 | dev_info(&pf->pdev->dev, "%s\n", string); | |
10162 | kfree(string); | |
10163 | } | |
10164 | ||
41c445ff JB |
10165 | /** |
10166 | * i40e_probe - Device initialization routine | |
10167 | * @pdev: PCI device information struct | |
10168 | * @ent: entry in i40e_pci_tbl | |
10169 | * | |
b40c82e6 JK |
10170 | * i40e_probe initializes a PF identified by a pci_dev structure. |
10171 | * The OS initialization, configuring of the PF private structure, | |
41c445ff JB |
10172 | * and a hardware reset occur. |
10173 | * | |
10174 | * Returns 0 on success, negative on failure | |
10175 | **/ | |
10176 | static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
10177 | { | |
e827845c | 10178 | struct i40e_aq_get_phy_abilities_resp abilities; |
41c445ff JB |
10179 | struct i40e_pf *pf; |
10180 | struct i40e_hw *hw; | |
93cd765b | 10181 | static u16 pfs_found; |
1d5109d1 | 10182 | u16 wol_nvm_bits; |
d4dfb81a | 10183 | u16 link_status; |
6f66a484 | 10184 | int err; |
41c445ff | 10185 | u32 len; |
8a9eb7d3 | 10186 | u32 i; |
58fc3267 | 10187 | u8 set_fc_aq_fail; |
41c445ff JB |
10188 | |
10189 | err = pci_enable_device_mem(pdev); | |
10190 | if (err) | |
10191 | return err; | |
10192 | ||
10193 | /* set up for high or low dma */ | |
6494294f | 10194 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
6494294f | 10195 | if (err) { |
e3e3bfdd JS |
10196 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
10197 | if (err) { | |
10198 | dev_err(&pdev->dev, | |
10199 | "DMA configuration failed: 0x%x\n", err); | |
10200 | goto err_dma; | |
10201 | } | |
41c445ff JB |
10202 | } |
10203 | ||
10204 | /* set up pci connections */ | |
10205 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, | |
10206 | IORESOURCE_MEM), i40e_driver_name); | |
10207 | if (err) { | |
10208 | dev_info(&pdev->dev, | |
10209 | "pci_request_selected_regions failed %d\n", err); | |
10210 | goto err_pci_reg; | |
10211 | } | |
10212 | ||
10213 | pci_enable_pcie_error_reporting(pdev); | |
10214 | pci_set_master(pdev); | |
10215 | ||
10216 | /* Now that we have a PCI connection, we need to do the | |
10217 | * low level device setup. This is primarily setting up | |
10218 | * the Admin Queue structures and then querying for the | |
10219 | * device's current profile information. | |
10220 | */ | |
10221 | pf = kzalloc(sizeof(*pf), GFP_KERNEL); | |
10222 | if (!pf) { | |
10223 | err = -ENOMEM; | |
10224 | goto err_pf_alloc; | |
10225 | } | |
10226 | pf->next_vsi = 0; | |
10227 | pf->pdev = pdev; | |
10228 | set_bit(__I40E_DOWN, &pf->state); | |
10229 | ||
10230 | hw = &pf->hw; | |
10231 | hw->back = pf; | |
232f4706 | 10232 | |
2ac8b675 SN |
10233 | pf->ioremap_len = min_t(int, pci_resource_len(pdev, 0), |
10234 | I40E_MAX_CSR_SPACE); | |
232f4706 | 10235 | |
2ac8b675 | 10236 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), pf->ioremap_len); |
41c445ff JB |
10237 | if (!hw->hw_addr) { |
10238 | err = -EIO; | |
10239 | dev_info(&pdev->dev, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n", | |
10240 | (unsigned int)pci_resource_start(pdev, 0), | |
2ac8b675 | 10241 | pf->ioremap_len, err); |
41c445ff JB |
10242 | goto err_ioremap; |
10243 | } | |
10244 | hw->vendor_id = pdev->vendor; | |
10245 | hw->device_id = pdev->device; | |
10246 | pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id); | |
10247 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
10248 | hw->subsystem_device_id = pdev->subsystem_device; | |
10249 | hw->bus.device = PCI_SLOT(pdev->devfn); | |
10250 | hw->bus.func = PCI_FUNC(pdev->devfn); | |
93cd765b | 10251 | pf->instance = pfs_found; |
41c445ff | 10252 | |
5b5faa43 SN |
10253 | if (debug != -1) { |
10254 | pf->msg_enable = pf->hw.debug_mask; | |
10255 | pf->msg_enable = debug; | |
10256 | } | |
10257 | ||
7134f9ce JB |
10258 | /* do a special CORER for clearing PXE mode once at init */ |
10259 | if (hw->revision_id == 0 && | |
10260 | (rd32(hw, I40E_GLLAN_RCTL_0) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK)) { | |
10261 | wr32(hw, I40E_GLGEN_RTRIG, I40E_GLGEN_RTRIG_CORER_MASK); | |
10262 | i40e_flush(hw); | |
10263 | msleep(200); | |
10264 | pf->corer_count++; | |
10265 | ||
10266 | i40e_clear_pxe_mode(hw); | |
10267 | } | |
10268 | ||
41c445ff | 10269 | /* Reset here to make sure all is clean and to define PF 'n' */ |
838d41d9 | 10270 | i40e_clear_hw(hw); |
41c445ff JB |
10271 | err = i40e_pf_reset(hw); |
10272 | if (err) { | |
10273 | dev_info(&pdev->dev, "Initial pf_reset failed: %d\n", err); | |
10274 | goto err_pf_reset; | |
10275 | } | |
10276 | pf->pfr_count++; | |
10277 | ||
10278 | hw->aq.num_arq_entries = I40E_AQ_LEN; | |
10279 | hw->aq.num_asq_entries = I40E_AQ_LEN; | |
10280 | hw->aq.arq_buf_size = I40E_MAX_AQ_BUF_SIZE; | |
10281 | hw->aq.asq_buf_size = I40E_MAX_AQ_BUF_SIZE; | |
10282 | pf->adminq_work_limit = I40E_AQ_WORK_LIMIT; | |
b2008cbf | 10283 | |
b294ac70 | 10284 | snprintf(pf->int_name, sizeof(pf->int_name) - 1, |
b2008cbf CW |
10285 | "%s-%s:misc", |
10286 | dev_driver_string(&pf->pdev->dev), dev_name(&pdev->dev)); | |
41c445ff JB |
10287 | |
10288 | err = i40e_init_shared_code(hw); | |
10289 | if (err) { | |
b2a75c58 ASJ |
10290 | dev_warn(&pdev->dev, "unidentified MAC or BLANK NVM: %d\n", |
10291 | err); | |
41c445ff JB |
10292 | goto err_pf_reset; |
10293 | } | |
10294 | ||
d52c20b7 JB |
10295 | /* set up a default setting for link flow control */ |
10296 | pf->hw.fc.requested_mode = I40E_FC_NONE; | |
10297 | ||
8ddb3326 JB |
10298 | /* set up the locks for the AQ, do this only once in probe |
10299 | * and destroy them only once in remove | |
10300 | */ | |
10301 | mutex_init(&hw->aq.asq_mutex); | |
10302 | mutex_init(&hw->aq.arq_mutex); | |
10303 | ||
41c445ff | 10304 | err = i40e_init_adminq(hw); |
f0b44440 | 10305 | |
6dec1017 SN |
10306 | /* provide nvm, fw, api versions */ |
10307 | dev_info(&pdev->dev, "fw %d.%d.%05d api %d.%d nvm %s\n", | |
10308 | hw->aq.fw_maj_ver, hw->aq.fw_min_ver, hw->aq.fw_build, | |
10309 | hw->aq.api_maj_ver, hw->aq.api_min_ver, | |
10310 | i40e_nvm_version_str(hw)); | |
f0b44440 | 10311 | |
41c445ff JB |
10312 | if (err) { |
10313 | dev_info(&pdev->dev, | |
7aa67613 | 10314 | "The driver for the device stopped because the NVM image is newer than expected. You must install the most recent version of the network driver.\n"); |
41c445ff JB |
10315 | goto err_pf_reset; |
10316 | } | |
10317 | ||
7aa67613 CS |
10318 | if (hw->aq.api_maj_ver == I40E_FW_API_VERSION_MAJOR && |
10319 | hw->aq.api_min_ver > I40E_FW_API_VERSION_MINOR) | |
278b6f62 | 10320 | dev_info(&pdev->dev, |
7aa67613 CS |
10321 | "The driver for the device detected a newer version of the NVM image than expected. Please install the most recent version of the network driver.\n"); |
10322 | else if (hw->aq.api_maj_ver < I40E_FW_API_VERSION_MAJOR || | |
10323 | hw->aq.api_min_ver < (I40E_FW_API_VERSION_MINOR - 1)) | |
278b6f62 | 10324 | dev_info(&pdev->dev, |
7aa67613 | 10325 | "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n"); |
278b6f62 | 10326 | |
4eb3f768 SN |
10327 | i40e_verify_eeprom(pf); |
10328 | ||
2c5fe33b JB |
10329 | /* Rev 0 hardware was never productized */ |
10330 | if (hw->revision_id < 1) | |
10331 | dev_warn(&pdev->dev, "This device is a pre-production adapter/LOM. Please be aware there may be issues with your hardware. If you are experiencing problems please contact your Intel or hardware representative who provided you with this hardware.\n"); | |
10332 | ||
6ff4ef86 | 10333 | i40e_clear_pxe_mode(hw); |
41c445ff JB |
10334 | err = i40e_get_capabilities(pf); |
10335 | if (err) | |
10336 | goto err_adminq_setup; | |
10337 | ||
10338 | err = i40e_sw_init(pf); | |
10339 | if (err) { | |
10340 | dev_info(&pdev->dev, "sw_init failed: %d\n", err); | |
10341 | goto err_sw_init; | |
10342 | } | |
10343 | ||
10344 | err = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp, | |
10345 | hw->func_caps.num_rx_qp, | |
10346 | pf->fcoe_hmc_cntx_num, pf->fcoe_hmc_filt_num); | |
10347 | if (err) { | |
10348 | dev_info(&pdev->dev, "init_lan_hmc failed: %d\n", err); | |
10349 | goto err_init_lan_hmc; | |
10350 | } | |
10351 | ||
10352 | err = i40e_configure_lan_hmc(hw, I40E_HMC_MODEL_DIRECT_ONLY); | |
10353 | if (err) { | |
10354 | dev_info(&pdev->dev, "configure_lan_hmc failed: %d\n", err); | |
10355 | err = -ENOENT; | |
10356 | goto err_configure_lan_hmc; | |
10357 | } | |
10358 | ||
b686ece5 NP |
10359 | /* Disable LLDP for NICs that have firmware versions lower than v4.3. |
10360 | * Ignore error return codes because if it was already disabled via | |
10361 | * hardware settings this will fail | |
10362 | */ | |
10363 | if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 3)) || | |
10364 | (pf->hw.aq.fw_maj_ver < 4)) { | |
10365 | dev_info(&pdev->dev, "Stopping firmware LLDP agent.\n"); | |
10366 | i40e_aq_stop_lldp(hw, true, NULL); | |
10367 | } | |
10368 | ||
41c445ff | 10369 | i40e_get_mac_addr(hw, hw->mac.addr); |
f62b5060 | 10370 | if (!is_valid_ether_addr(hw->mac.addr)) { |
41c445ff JB |
10371 | dev_info(&pdev->dev, "invalid MAC address %pM\n", hw->mac.addr); |
10372 | err = -EIO; | |
10373 | goto err_mac_addr; | |
10374 | } | |
10375 | dev_info(&pdev->dev, "MAC address: %pM\n", hw->mac.addr); | |
9a173901 | 10376 | ether_addr_copy(hw->mac.perm_addr, hw->mac.addr); |
1f224ad2 NP |
10377 | i40e_get_port_mac_addr(hw, hw->mac.port_addr); |
10378 | if (is_valid_ether_addr(hw->mac.port_addr)) | |
10379 | pf->flags |= I40E_FLAG_PORT_ID_VALID; | |
38e00438 VD |
10380 | #ifdef I40E_FCOE |
10381 | err = i40e_get_san_mac_addr(hw, hw->mac.san_addr); | |
10382 | if (err) | |
10383 | dev_info(&pdev->dev, | |
10384 | "(non-fatal) SAN MAC retrieval failed: %d\n", err); | |
10385 | if (!is_valid_ether_addr(hw->mac.san_addr)) { | |
10386 | dev_warn(&pdev->dev, "invalid SAN MAC address %pM, falling back to LAN MAC\n", | |
10387 | hw->mac.san_addr); | |
10388 | ether_addr_copy(hw->mac.san_addr, hw->mac.addr); | |
10389 | } | |
10390 | dev_info(&pf->pdev->dev, "SAN MAC: %pM\n", hw->mac.san_addr); | |
10391 | #endif /* I40E_FCOE */ | |
41c445ff JB |
10392 | |
10393 | pci_set_drvdata(pdev, pf); | |
10394 | pci_save_state(pdev); | |
4e3b35b0 NP |
10395 | #ifdef CONFIG_I40E_DCB |
10396 | err = i40e_init_pf_dcb(pf); | |
10397 | if (err) { | |
aebfc816 | 10398 | dev_info(&pdev->dev, "DCB init failed %d, disabled\n", err); |
4d9b6043 | 10399 | pf->flags &= ~I40E_FLAG_DCB_CAPABLE; |
014269ff | 10400 | /* Continue without DCB enabled */ |
4e3b35b0 NP |
10401 | } |
10402 | #endif /* CONFIG_I40E_DCB */ | |
41c445ff JB |
10403 | |
10404 | /* set up periodic task facility */ | |
10405 | setup_timer(&pf->service_timer, i40e_service_timer, (unsigned long)pf); | |
10406 | pf->service_timer_period = HZ; | |
10407 | ||
10408 | INIT_WORK(&pf->service_task, i40e_service_task); | |
10409 | clear_bit(__I40E_SERVICE_SCHED, &pf->state); | |
10410 | pf->flags |= I40E_FLAG_NEED_LINK_UPDATE; | |
41c445ff | 10411 | |
1d5109d1 SN |
10412 | /* NVM bit on means WoL disabled for the port */ |
10413 | i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); | |
10414 | if ((1 << hw->port) & wol_nvm_bits || hw->partition_id != 1) | |
10415 | pf->wol_en = false; | |
10416 | else | |
10417 | pf->wol_en = true; | |
8e2773ae SN |
10418 | device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); |
10419 | ||
41c445ff JB |
10420 | /* set up the main switch operations */ |
10421 | i40e_determine_queue_usage(pf); | |
c1147280 JB |
10422 | err = i40e_init_interrupt_scheme(pf); |
10423 | if (err) | |
10424 | goto err_switch_setup; | |
41c445ff | 10425 | |
505682cd MW |
10426 | /* The number of VSIs reported by the FW is the minimum guaranteed |
10427 | * to us; HW supports far more and we share the remaining pool with | |
10428 | * the other PFs. We allocate space for more than the guarantee with | |
10429 | * the understanding that we might not get them all later. | |
41c445ff | 10430 | */ |
505682cd MW |
10431 | if (pf->hw.func_caps.num_vsis < I40E_MIN_VSI_ALLOC) |
10432 | pf->num_alloc_vsi = I40E_MIN_VSI_ALLOC; | |
10433 | else | |
10434 | pf->num_alloc_vsi = pf->hw.func_caps.num_vsis; | |
10435 | ||
10436 | /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */ | |
10437 | len = sizeof(struct i40e_vsi *) * pf->num_alloc_vsi; | |
41c445ff | 10438 | pf->vsi = kzalloc(len, GFP_KERNEL); |
ed87ac09 WY |
10439 | if (!pf->vsi) { |
10440 | err = -ENOMEM; | |
41c445ff | 10441 | goto err_switch_setup; |
ed87ac09 | 10442 | } |
41c445ff | 10443 | |
fa11cb3d ASJ |
10444 | #ifdef CONFIG_PCI_IOV |
10445 | /* prep for VF support */ | |
10446 | if ((pf->flags & I40E_FLAG_SRIOV_ENABLED) && | |
10447 | (pf->flags & I40E_FLAG_MSIX_ENABLED) && | |
10448 | !test_bit(__I40E_BAD_EEPROM, &pf->state)) { | |
10449 | if (pci_num_vf(pdev)) | |
10450 | pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; | |
10451 | } | |
10452 | #endif | |
bc7d338f | 10453 | err = i40e_setup_pf_switch(pf, false); |
41c445ff JB |
10454 | if (err) { |
10455 | dev_info(&pdev->dev, "setup_pf_switch failed: %d\n", err); | |
10456 | goto err_vsis; | |
10457 | } | |
58fc3267 HZ |
10458 | |
10459 | /* Make sure flow control is set according to current settings */ | |
10460 | err = i40e_set_fc(hw, &set_fc_aq_fail, true); | |
10461 | if (set_fc_aq_fail & I40E_SET_FC_AQ_FAIL_GET) | |
10462 | dev_dbg(&pf->pdev->dev, | |
10463 | "Set fc with err %s aq_err %s on get_phy_cap\n", | |
10464 | i40e_stat_str(hw, err), | |
10465 | i40e_aq_str(hw, hw->aq.asq_last_status)); | |
10466 | if (set_fc_aq_fail & I40E_SET_FC_AQ_FAIL_SET) | |
10467 | dev_dbg(&pf->pdev->dev, | |
10468 | "Set fc with err %s aq_err %s on set_phy_config\n", | |
10469 | i40e_stat_str(hw, err), | |
10470 | i40e_aq_str(hw, hw->aq.asq_last_status)); | |
10471 | if (set_fc_aq_fail & I40E_SET_FC_AQ_FAIL_UPDATE) | |
10472 | dev_dbg(&pf->pdev->dev, | |
10473 | "Set fc with err %s aq_err %s on get_link_info\n", | |
10474 | i40e_stat_str(hw, err), | |
10475 | i40e_aq_str(hw, hw->aq.asq_last_status)); | |
10476 | ||
8a9eb7d3 | 10477 | /* if FDIR VSI was set up, start it now */ |
505682cd | 10478 | for (i = 0; i < pf->num_alloc_vsi; i++) { |
8a9eb7d3 SN |
10479 | if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) { |
10480 | i40e_vsi_open(pf->vsi[i]); | |
10481 | break; | |
10482 | } | |
10483 | } | |
41c445ff | 10484 | |
7e2453fe JB |
10485 | /* driver is only interested in link up/down and module qualification |
10486 | * reports from firmware | |
10487 | */ | |
10488 | err = i40e_aq_set_phy_int_mask(&pf->hw, | |
10489 | I40E_AQ_EVENT_LINK_UPDOWN | | |
10490 | I40E_AQ_EVENT_MODULE_QUAL_FAIL, NULL); | |
10491 | if (err) | |
f1c7e72e SN |
10492 | dev_info(&pf->pdev->dev, "set phy mask fail, err %s aq_err %s\n", |
10493 | i40e_stat_str(&pf->hw, err), | |
10494 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
7e2453fe | 10495 | |
025b4a54 ASJ |
10496 | if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) || |
10497 | (pf->hw.aq.fw_maj_ver < 4)) { | |
10498 | msleep(75); | |
10499 | err = i40e_aq_set_link_restart_an(&pf->hw, true, NULL); | |
10500 | if (err) | |
f1c7e72e SN |
10501 | dev_info(&pf->pdev->dev, "link restart failed, err %s aq_err %s\n", |
10502 | i40e_stat_str(&pf->hw, err), | |
10503 | i40e_aq_str(&pf->hw, | |
10504 | pf->hw.aq.asq_last_status)); | |
cafa2ee6 | 10505 | } |
41c445ff JB |
10506 | /* The main driver is (mostly) up and happy. We need to set this state |
10507 | * before setting up the misc vector or we get a race and the vector | |
10508 | * ends up disabled forever. | |
10509 | */ | |
10510 | clear_bit(__I40E_DOWN, &pf->state); | |
10511 | ||
10512 | /* In case of MSIX we are going to setup the misc vector right here | |
10513 | * to handle admin queue events etc. In case of legacy and MSI | |
10514 | * the misc functionality and queue processing is combined in | |
10515 | * the same vector and that gets setup at open. | |
10516 | */ | |
10517 | if (pf->flags & I40E_FLAG_MSIX_ENABLED) { | |
10518 | err = i40e_setup_misc_vector(pf); | |
10519 | if (err) { | |
10520 | dev_info(&pdev->dev, | |
10521 | "setup of misc vector failed: %d\n", err); | |
10522 | goto err_vsis; | |
10523 | } | |
10524 | } | |
10525 | ||
df805f62 | 10526 | #ifdef CONFIG_PCI_IOV |
41c445ff JB |
10527 | /* prep for VF support */ |
10528 | if ((pf->flags & I40E_FLAG_SRIOV_ENABLED) && | |
4eb3f768 SN |
10529 | (pf->flags & I40E_FLAG_MSIX_ENABLED) && |
10530 | !test_bit(__I40E_BAD_EEPROM, &pf->state)) { | |
41c445ff JB |
10531 | u32 val; |
10532 | ||
10533 | /* disable link interrupts for VFs */ | |
10534 | val = rd32(hw, I40E_PFGEN_PORTMDIO_NUM); | |
10535 | val &= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK; | |
10536 | wr32(hw, I40E_PFGEN_PORTMDIO_NUM, val); | |
10537 | i40e_flush(hw); | |
4aeec010 MW |
10538 | |
10539 | if (pci_num_vf(pdev)) { | |
10540 | dev_info(&pdev->dev, | |
10541 | "Active VFs found, allocating resources.\n"); | |
10542 | err = i40e_alloc_vfs(pf, pci_num_vf(pdev)); | |
10543 | if (err) | |
10544 | dev_info(&pdev->dev, | |
10545 | "Error %d allocating resources for existing VFs\n", | |
10546 | err); | |
10547 | } | |
41c445ff | 10548 | } |
df805f62 | 10549 | #endif /* CONFIG_PCI_IOV */ |
41c445ff | 10550 | |
93cd765b ASJ |
10551 | pfs_found++; |
10552 | ||
41c445ff JB |
10553 | i40e_dbg_pf_init(pf); |
10554 | ||
10555 | /* tell the firmware that we're starting */ | |
44033fac | 10556 | i40e_send_version(pf); |
41c445ff JB |
10557 | |
10558 | /* since everything's happy, start the service_task timer */ | |
10559 | mod_timer(&pf->service_timer, | |
10560 | round_jiffies(jiffies + pf->service_timer_period)); | |
10561 | ||
38e00438 VD |
10562 | #ifdef I40E_FCOE |
10563 | /* create FCoE interface */ | |
10564 | i40e_fcoe_vsi_setup(pf); | |
10565 | ||
10566 | #endif | |
3fced535 ASJ |
10567 | #define PCI_SPEED_SIZE 8 |
10568 | #define PCI_WIDTH_SIZE 8 | |
10569 | /* Devices on the IOSF bus do not have this information | |
10570 | * and will report PCI Gen 1 x 1 by default so don't bother | |
10571 | * checking them. | |
10572 | */ | |
10573 | if (!(pf->flags & I40E_FLAG_NO_PCI_LINK_CHECK)) { | |
10574 | char speed[PCI_SPEED_SIZE] = "Unknown"; | |
10575 | char width[PCI_WIDTH_SIZE] = "Unknown"; | |
10576 | ||
10577 | /* Get the negotiated link width and speed from PCI config | |
10578 | * space | |
10579 | */ | |
10580 | pcie_capability_read_word(pf->pdev, PCI_EXP_LNKSTA, | |
10581 | &link_status); | |
10582 | ||
10583 | i40e_set_pci_config_data(hw, link_status); | |
10584 | ||
10585 | switch (hw->bus.speed) { | |
10586 | case i40e_bus_speed_8000: | |
10587 | strncpy(speed, "8.0", PCI_SPEED_SIZE); break; | |
10588 | case i40e_bus_speed_5000: | |
10589 | strncpy(speed, "5.0", PCI_SPEED_SIZE); break; | |
10590 | case i40e_bus_speed_2500: | |
10591 | strncpy(speed, "2.5", PCI_SPEED_SIZE); break; | |
10592 | default: | |
10593 | break; | |
10594 | } | |
10595 | switch (hw->bus.width) { | |
10596 | case i40e_bus_width_pcie_x8: | |
10597 | strncpy(width, "8", PCI_WIDTH_SIZE); break; | |
10598 | case i40e_bus_width_pcie_x4: | |
10599 | strncpy(width, "4", PCI_WIDTH_SIZE); break; | |
10600 | case i40e_bus_width_pcie_x2: | |
10601 | strncpy(width, "2", PCI_WIDTH_SIZE); break; | |
10602 | case i40e_bus_width_pcie_x1: | |
10603 | strncpy(width, "1", PCI_WIDTH_SIZE); break; | |
10604 | default: | |
10605 | break; | |
10606 | } | |
10607 | ||
10608 | dev_info(&pdev->dev, "PCI-Express: Speed %sGT/s Width x%s\n", | |
10609 | speed, width); | |
10610 | ||
10611 | if (hw->bus.width < i40e_bus_width_pcie_x8 || | |
10612 | hw->bus.speed < i40e_bus_speed_8000) { | |
10613 | dev_warn(&pdev->dev, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n"); | |
10614 | dev_warn(&pdev->dev, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n"); | |
10615 | } | |
d4dfb81a CS |
10616 | } |
10617 | ||
e827845c CS |
10618 | /* get the requested speeds from the fw */ |
10619 | err = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, NULL); | |
10620 | if (err) | |
8279e495 NP |
10621 | dev_dbg(&pf->pdev->dev, "get requested speeds ret = %s last_status = %s\n", |
10622 | i40e_stat_str(&pf->hw, err), | |
10623 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
e827845c CS |
10624 | pf->hw.phy.link_info.requested_speeds = abilities.link_speed; |
10625 | ||
fc72dbce CS |
10626 | /* get the supported phy types from the fw */ |
10627 | err = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, NULL); | |
10628 | if (err) | |
10629 | dev_dbg(&pf->pdev->dev, "get supported phy types ret = %s last_status = %s\n", | |
10630 | i40e_stat_str(&pf->hw, err), | |
10631 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); | |
10632 | pf->hw.phy.phy_types = le32_to_cpu(abilities.phy_type); | |
10633 | ||
e7358f54 ASJ |
10634 | /* Add a filter to drop all Flow control frames from any VSI from being |
10635 | * transmitted. By doing so we stop a malicious VF from sending out | |
10636 | * PAUSE or PFC frames and potentially controlling traffic for other | |
10637 | * PF/VF VSIs. | |
10638 | * The FW can still send Flow control frames if enabled. | |
10639 | */ | |
10640 | i40e_add_filter_to_drop_tx_flow_control_frames(&pf->hw, | |
10641 | pf->main_vsi_seid); | |
10642 | ||
0c22b3dd JB |
10643 | /* print a string summarizing features */ |
10644 | i40e_print_features(pf); | |
10645 | ||
41c445ff JB |
10646 | return 0; |
10647 | ||
10648 | /* Unwind what we've done if something failed in the setup */ | |
10649 | err_vsis: | |
10650 | set_bit(__I40E_DOWN, &pf->state); | |
41c445ff JB |
10651 | i40e_clear_interrupt_scheme(pf); |
10652 | kfree(pf->vsi); | |
04b03013 SN |
10653 | err_switch_setup: |
10654 | i40e_reset_interrupt_capability(pf); | |
41c445ff JB |
10655 | del_timer_sync(&pf->service_timer); |
10656 | err_mac_addr: | |
10657 | err_configure_lan_hmc: | |
10658 | (void)i40e_shutdown_lan_hmc(hw); | |
10659 | err_init_lan_hmc: | |
10660 | kfree(pf->qp_pile); | |
41c445ff JB |
10661 | err_sw_init: |
10662 | err_adminq_setup: | |
10663 | (void)i40e_shutdown_adminq(hw); | |
10664 | err_pf_reset: | |
10665 | iounmap(hw->hw_addr); | |
10666 | err_ioremap: | |
10667 | kfree(pf); | |
10668 | err_pf_alloc: | |
10669 | pci_disable_pcie_error_reporting(pdev); | |
10670 | pci_release_selected_regions(pdev, | |
10671 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
10672 | err_pci_reg: | |
10673 | err_dma: | |
10674 | pci_disable_device(pdev); | |
10675 | return err; | |
10676 | } | |
10677 | ||
10678 | /** | |
10679 | * i40e_remove - Device removal routine | |
10680 | * @pdev: PCI device information struct | |
10681 | * | |
10682 | * i40e_remove is called by the PCI subsystem to alert the driver | |
10683 | * that is should release a PCI device. This could be caused by a | |
10684 | * Hot-Plug event, or because the driver is going to be removed from | |
10685 | * memory. | |
10686 | **/ | |
10687 | static void i40e_remove(struct pci_dev *pdev) | |
10688 | { | |
10689 | struct i40e_pf *pf = pci_get_drvdata(pdev); | |
bcab2db9 | 10690 | struct i40e_hw *hw = &pf->hw; |
41c445ff | 10691 | i40e_status ret_code; |
41c445ff JB |
10692 | int i; |
10693 | ||
10694 | i40e_dbg_pf_exit(pf); | |
10695 | ||
beb0dff1 JK |
10696 | i40e_ptp_stop(pf); |
10697 | ||
bcab2db9 CW |
10698 | /* Disable RSS in hw */ |
10699 | wr32(hw, I40E_PFQF_HENA(0), 0); | |
10700 | wr32(hw, I40E_PFQF_HENA(1), 0); | |
10701 | ||
41c445ff JB |
10702 | /* no more scheduling of any task */ |
10703 | set_bit(__I40E_DOWN, &pf->state); | |
10704 | del_timer_sync(&pf->service_timer); | |
10705 | cancel_work_sync(&pf->service_task); | |
10706 | ||
eb2d80bc MW |
10707 | if (pf->flags & I40E_FLAG_SRIOV_ENABLED) { |
10708 | i40e_free_vfs(pf); | |
10709 | pf->flags &= ~I40E_FLAG_SRIOV_ENABLED; | |
10710 | } | |
10711 | ||
41c445ff JB |
10712 | i40e_fdir_teardown(pf); |
10713 | ||
10714 | /* If there is a switch structure or any orphans, remove them. | |
10715 | * This will leave only the PF's VSI remaining. | |
10716 | */ | |
10717 | for (i = 0; i < I40E_MAX_VEB; i++) { | |
10718 | if (!pf->veb[i]) | |
10719 | continue; | |
10720 | ||
10721 | if (pf->veb[i]->uplink_seid == pf->mac_seid || | |
10722 | pf->veb[i]->uplink_seid == 0) | |
10723 | i40e_switch_branch_release(pf->veb[i]); | |
10724 | } | |
10725 | ||
10726 | /* Now we can shutdown the PF's VSI, just before we kill | |
10727 | * adminq and hmc. | |
10728 | */ | |
10729 | if (pf->vsi[pf->lan_vsi]) | |
10730 | i40e_vsi_release(pf->vsi[pf->lan_vsi]); | |
10731 | ||
41c445ff | 10732 | /* shutdown and destroy the HMC */ |
60442dea SN |
10733 | if (pf->hw.hmc.hmc_obj) { |
10734 | ret_code = i40e_shutdown_lan_hmc(&pf->hw); | |
10735 | if (ret_code) | |
10736 | dev_warn(&pdev->dev, | |
10737 | "Failed to destroy the HMC resources: %d\n", | |
10738 | ret_code); | |
10739 | } | |
41c445ff JB |
10740 | |
10741 | /* shutdown the adminq */ | |
41c445ff JB |
10742 | ret_code = i40e_shutdown_adminq(&pf->hw); |
10743 | if (ret_code) | |
10744 | dev_warn(&pdev->dev, | |
10745 | "Failed to destroy the Admin Queue resources: %d\n", | |
10746 | ret_code); | |
10747 | ||
8ddb3326 JB |
10748 | /* destroy the locks only once, here */ |
10749 | mutex_destroy(&hw->aq.arq_mutex); | |
10750 | mutex_destroy(&hw->aq.asq_mutex); | |
10751 | ||
41c445ff JB |
10752 | /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */ |
10753 | i40e_clear_interrupt_scheme(pf); | |
505682cd | 10754 | for (i = 0; i < pf->num_alloc_vsi; i++) { |
41c445ff JB |
10755 | if (pf->vsi[i]) { |
10756 | i40e_vsi_clear_rings(pf->vsi[i]); | |
10757 | i40e_vsi_clear(pf->vsi[i]); | |
10758 | pf->vsi[i] = NULL; | |
10759 | } | |
10760 | } | |
10761 | ||
10762 | for (i = 0; i < I40E_MAX_VEB; i++) { | |
10763 | kfree(pf->veb[i]); | |
10764 | pf->veb[i] = NULL; | |
10765 | } | |
10766 | ||
10767 | kfree(pf->qp_pile); | |
41c445ff JB |
10768 | kfree(pf->vsi); |
10769 | ||
41c445ff JB |
10770 | iounmap(pf->hw.hw_addr); |
10771 | kfree(pf); | |
10772 | pci_release_selected_regions(pdev, | |
10773 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
10774 | ||
10775 | pci_disable_pcie_error_reporting(pdev); | |
10776 | pci_disable_device(pdev); | |
10777 | } | |
10778 | ||
10779 | /** | |
10780 | * i40e_pci_error_detected - warning that something funky happened in PCI land | |
10781 | * @pdev: PCI device information struct | |
10782 | * | |
10783 | * Called to warn that something happened and the error handling steps | |
10784 | * are in progress. Allows the driver to quiesce things, be ready for | |
10785 | * remediation. | |
10786 | **/ | |
10787 | static pci_ers_result_t i40e_pci_error_detected(struct pci_dev *pdev, | |
10788 | enum pci_channel_state error) | |
10789 | { | |
10790 | struct i40e_pf *pf = pci_get_drvdata(pdev); | |
10791 | ||
10792 | dev_info(&pdev->dev, "%s: error %d\n", __func__, error); | |
10793 | ||
10794 | /* shutdown all operations */ | |
9007bccd SN |
10795 | if (!test_bit(__I40E_SUSPENDED, &pf->state)) { |
10796 | rtnl_lock(); | |
10797 | i40e_prep_for_reset(pf); | |
10798 | rtnl_unlock(); | |
10799 | } | |
41c445ff JB |
10800 | |
10801 | /* Request a slot reset */ | |
10802 | return PCI_ERS_RESULT_NEED_RESET; | |
10803 | } | |
10804 | ||
10805 | /** | |
10806 | * i40e_pci_error_slot_reset - a PCI slot reset just happened | |
10807 | * @pdev: PCI device information struct | |
10808 | * | |
10809 | * Called to find if the driver can work with the device now that | |
10810 | * the pci slot has been reset. If a basic connection seems good | |
10811 | * (registers are readable and have sane content) then return a | |
10812 | * happy little PCI_ERS_RESULT_xxx. | |
10813 | **/ | |
10814 | static pci_ers_result_t i40e_pci_error_slot_reset(struct pci_dev *pdev) | |
10815 | { | |
10816 | struct i40e_pf *pf = pci_get_drvdata(pdev); | |
10817 | pci_ers_result_t result; | |
10818 | int err; | |
10819 | u32 reg; | |
10820 | ||
fb43201f | 10821 | dev_dbg(&pdev->dev, "%s\n", __func__); |
41c445ff JB |
10822 | if (pci_enable_device_mem(pdev)) { |
10823 | dev_info(&pdev->dev, | |
10824 | "Cannot re-enable PCI device after reset.\n"); | |
10825 | result = PCI_ERS_RESULT_DISCONNECT; | |
10826 | } else { | |
10827 | pci_set_master(pdev); | |
10828 | pci_restore_state(pdev); | |
10829 | pci_save_state(pdev); | |
10830 | pci_wake_from_d3(pdev, false); | |
10831 | ||
10832 | reg = rd32(&pf->hw, I40E_GLGEN_RTRIG); | |
10833 | if (reg == 0) | |
10834 | result = PCI_ERS_RESULT_RECOVERED; | |
10835 | else | |
10836 | result = PCI_ERS_RESULT_DISCONNECT; | |
10837 | } | |
10838 | ||
10839 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
10840 | if (err) { | |
10841 | dev_info(&pdev->dev, | |
10842 | "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n", | |
10843 | err); | |
10844 | /* non-fatal, continue */ | |
10845 | } | |
10846 | ||
10847 | return result; | |
10848 | } | |
10849 | ||
10850 | /** | |
10851 | * i40e_pci_error_resume - restart operations after PCI error recovery | |
10852 | * @pdev: PCI device information struct | |
10853 | * | |
10854 | * Called to allow the driver to bring things back up after PCI error | |
10855 | * and/or reset recovery has finished. | |
10856 | **/ | |
10857 | static void i40e_pci_error_resume(struct pci_dev *pdev) | |
10858 | { | |
10859 | struct i40e_pf *pf = pci_get_drvdata(pdev); | |
10860 | ||
fb43201f | 10861 | dev_dbg(&pdev->dev, "%s\n", __func__); |
9007bccd SN |
10862 | if (test_bit(__I40E_SUSPENDED, &pf->state)) |
10863 | return; | |
10864 | ||
10865 | rtnl_lock(); | |
41c445ff | 10866 | i40e_handle_reset_warning(pf); |
4c4935a9 | 10867 | rtnl_unlock(); |
9007bccd SN |
10868 | } |
10869 | ||
10870 | /** | |
10871 | * i40e_shutdown - PCI callback for shutting down | |
10872 | * @pdev: PCI device information struct | |
10873 | **/ | |
10874 | static void i40e_shutdown(struct pci_dev *pdev) | |
10875 | { | |
10876 | struct i40e_pf *pf = pci_get_drvdata(pdev); | |
8e2773ae | 10877 | struct i40e_hw *hw = &pf->hw; |
9007bccd SN |
10878 | |
10879 | set_bit(__I40E_SUSPENDED, &pf->state); | |
10880 | set_bit(__I40E_DOWN, &pf->state); | |
10881 | rtnl_lock(); | |
10882 | i40e_prep_for_reset(pf); | |
10883 | rtnl_unlock(); | |
10884 | ||
8e2773ae SN |
10885 | wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0)); |
10886 | wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0)); | |
10887 | ||
02b42498 CS |
10888 | del_timer_sync(&pf->service_timer); |
10889 | cancel_work_sync(&pf->service_task); | |
10890 | i40e_fdir_teardown(pf); | |
10891 | ||
10892 | rtnl_lock(); | |
10893 | i40e_prep_for_reset(pf); | |
10894 | rtnl_unlock(); | |
10895 | ||
10896 | wr32(hw, I40E_PFPM_APM, | |
10897 | (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0)); | |
10898 | wr32(hw, I40E_PFPM_WUFC, | |
10899 | (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0)); | |
10900 | ||
e147758d SN |
10901 | i40e_clear_interrupt_scheme(pf); |
10902 | ||
9007bccd | 10903 | if (system_state == SYSTEM_POWER_OFF) { |
8e2773ae | 10904 | pci_wake_from_d3(pdev, pf->wol_en); |
9007bccd SN |
10905 | pci_set_power_state(pdev, PCI_D3hot); |
10906 | } | |
10907 | } | |
10908 | ||
10909 | #ifdef CONFIG_PM | |
10910 | /** | |
10911 | * i40e_suspend - PCI callback for moving to D3 | |
10912 | * @pdev: PCI device information struct | |
10913 | **/ | |
10914 | static int i40e_suspend(struct pci_dev *pdev, pm_message_t state) | |
10915 | { | |
10916 | struct i40e_pf *pf = pci_get_drvdata(pdev); | |
8e2773ae | 10917 | struct i40e_hw *hw = &pf->hw; |
9007bccd SN |
10918 | |
10919 | set_bit(__I40E_SUSPENDED, &pf->state); | |
10920 | set_bit(__I40E_DOWN, &pf->state); | |
3932dbfe | 10921 | |
9007bccd SN |
10922 | rtnl_lock(); |
10923 | i40e_prep_for_reset(pf); | |
10924 | rtnl_unlock(); | |
10925 | ||
8e2773ae SN |
10926 | wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0)); |
10927 | wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0)); | |
10928 | ||
10929 | pci_wake_from_d3(pdev, pf->wol_en); | |
9007bccd SN |
10930 | pci_set_power_state(pdev, PCI_D3hot); |
10931 | ||
10932 | return 0; | |
41c445ff JB |
10933 | } |
10934 | ||
9007bccd SN |
10935 | /** |
10936 | * i40e_resume - PCI callback for waking up from D3 | |
10937 | * @pdev: PCI device information struct | |
10938 | **/ | |
10939 | static int i40e_resume(struct pci_dev *pdev) | |
10940 | { | |
10941 | struct i40e_pf *pf = pci_get_drvdata(pdev); | |
10942 | u32 err; | |
10943 | ||
10944 | pci_set_power_state(pdev, PCI_D0); | |
10945 | pci_restore_state(pdev); | |
10946 | /* pci_restore_state() clears dev->state_saves, so | |
10947 | * call pci_save_state() again to restore it. | |
10948 | */ | |
10949 | pci_save_state(pdev); | |
10950 | ||
10951 | err = pci_enable_device_mem(pdev); | |
10952 | if (err) { | |
fb43201f | 10953 | dev_err(&pdev->dev, "Cannot enable PCI device from suspend\n"); |
9007bccd SN |
10954 | return err; |
10955 | } | |
10956 | pci_set_master(pdev); | |
10957 | ||
10958 | /* no wakeup events while running */ | |
10959 | pci_wake_from_d3(pdev, false); | |
10960 | ||
10961 | /* handling the reset will rebuild the device state */ | |
10962 | if (test_and_clear_bit(__I40E_SUSPENDED, &pf->state)) { | |
10963 | clear_bit(__I40E_DOWN, &pf->state); | |
10964 | rtnl_lock(); | |
10965 | i40e_reset_and_rebuild(pf, false); | |
10966 | rtnl_unlock(); | |
10967 | } | |
10968 | ||
10969 | return 0; | |
10970 | } | |
10971 | ||
10972 | #endif | |
41c445ff JB |
10973 | static const struct pci_error_handlers i40e_err_handler = { |
10974 | .error_detected = i40e_pci_error_detected, | |
10975 | .slot_reset = i40e_pci_error_slot_reset, | |
10976 | .resume = i40e_pci_error_resume, | |
10977 | }; | |
10978 | ||
10979 | static struct pci_driver i40e_driver = { | |
10980 | .name = i40e_driver_name, | |
10981 | .id_table = i40e_pci_tbl, | |
10982 | .probe = i40e_probe, | |
10983 | .remove = i40e_remove, | |
9007bccd SN |
10984 | #ifdef CONFIG_PM |
10985 | .suspend = i40e_suspend, | |
10986 | .resume = i40e_resume, | |
10987 | #endif | |
10988 | .shutdown = i40e_shutdown, | |
41c445ff JB |
10989 | .err_handler = &i40e_err_handler, |
10990 | .sriov_configure = i40e_pci_sriov_configure, | |
10991 | }; | |
10992 | ||
10993 | /** | |
10994 | * i40e_init_module - Driver registration routine | |
10995 | * | |
10996 | * i40e_init_module is the first routine called when the driver is | |
10997 | * loaded. All it does is register with the PCI subsystem. | |
10998 | **/ | |
10999 | static int __init i40e_init_module(void) | |
11000 | { | |
11001 | pr_info("%s: %s - version %s\n", i40e_driver_name, | |
11002 | i40e_driver_string, i40e_driver_version_str); | |
11003 | pr_info("%s: %s\n", i40e_driver_name, i40e_copyright); | |
96664483 | 11004 | |
41c445ff JB |
11005 | i40e_dbg_init(); |
11006 | return pci_register_driver(&i40e_driver); | |
11007 | } | |
11008 | module_init(i40e_init_module); | |
11009 | ||
11010 | /** | |
11011 | * i40e_exit_module - Driver exit cleanup routine | |
11012 | * | |
11013 | * i40e_exit_module is called just before the driver is removed | |
11014 | * from memory. | |
11015 | **/ | |
11016 | static void __exit i40e_exit_module(void) | |
11017 | { | |
11018 | pci_unregister_driver(&i40e_driver); | |
11019 | i40e_dbg_exit(); | |
11020 | } | |
11021 | module_exit(i40e_exit_module); |