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5eae00c5 GR |
1 | /******************************************************************************* |
2 | * | |
3 | * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver | |
5b8eb176 | 4 | * Copyright(c) 2013 - 2015 Intel Corporation. |
5eae00c5 GR |
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 | * | |
b831607d JB |
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/>. | |
17 | * | |
5eae00c5 GR |
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 | #include "i40evf.h" | |
28 | #include "i40e_prototype.h" | |
29 | static int i40evf_setup_all_tx_resources(struct i40evf_adapter *adapter); | |
30 | static int i40evf_setup_all_rx_resources(struct i40evf_adapter *adapter); | |
169f4076 MW |
31 | static void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter); |
32 | static void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter); | |
5eae00c5 GR |
33 | static int i40evf_close(struct net_device *netdev); |
34 | ||
35 | char i40evf_driver_name[] = "i40evf"; | |
36 | static const char i40evf_driver_string[] = | |
0af56f44 | 37 | "Intel(R) XL710/X710 Virtual Function Network Driver"; |
5eae00c5 | 38 | |
b85e911b | 39 | #define DRV_VERSION "1.2.6" |
5eae00c5 GR |
40 | const char i40evf_driver_version[] = DRV_VERSION; |
41 | static const char i40evf_copyright[] = | |
673f2ebf | 42 | "Copyright (c) 2013 - 2014 Intel Corporation."; |
5eae00c5 GR |
43 | |
44 | /* i40evf_pci_tbl - PCI Device ID Table | |
45 | * | |
46 | * Wildcard entries (PCI_ANY_ID) should come last | |
47 | * Last entry must be all 0s | |
48 | * | |
49 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
50 | * Class, Class Mask, private data (not used) } | |
51 | */ | |
9baa3c34 | 52 | static const struct pci_device_id i40evf_pci_tbl[] = { |
ab60085e | 53 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_VF), 0}, |
5eae00c5 GR |
54 | /* required last entry */ |
55 | {0, } | |
56 | }; | |
57 | ||
58 | MODULE_DEVICE_TABLE(pci, i40evf_pci_tbl); | |
59 | ||
60 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); | |
61 | MODULE_DESCRIPTION("Intel(R) XL710 X710 Virtual Function Network Driver"); | |
62 | MODULE_LICENSE("GPL"); | |
63 | MODULE_VERSION(DRV_VERSION); | |
64 | ||
65 | /** | |
66 | * i40evf_allocate_dma_mem_d - OS specific memory alloc for shared code | |
67 | * @hw: pointer to the HW structure | |
68 | * @mem: ptr to mem struct to fill out | |
69 | * @size: size of memory requested | |
70 | * @alignment: what to align the allocation to | |
71 | **/ | |
72 | i40e_status i40evf_allocate_dma_mem_d(struct i40e_hw *hw, | |
73 | struct i40e_dma_mem *mem, | |
74 | u64 size, u32 alignment) | |
75 | { | |
76 | struct i40evf_adapter *adapter = (struct i40evf_adapter *)hw->back; | |
77 | ||
78 | if (!mem) | |
79 | return I40E_ERR_PARAM; | |
80 | ||
81 | mem->size = ALIGN(size, alignment); | |
82 | mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, | |
83 | (dma_addr_t *)&mem->pa, GFP_KERNEL); | |
84 | if (mem->va) | |
85 | return 0; | |
86 | else | |
87 | return I40E_ERR_NO_MEMORY; | |
88 | } | |
89 | ||
90 | /** | |
91 | * i40evf_free_dma_mem_d - OS specific memory free for shared code | |
92 | * @hw: pointer to the HW structure | |
93 | * @mem: ptr to mem struct to free | |
94 | **/ | |
95 | i40e_status i40evf_free_dma_mem_d(struct i40e_hw *hw, struct i40e_dma_mem *mem) | |
96 | { | |
97 | struct i40evf_adapter *adapter = (struct i40evf_adapter *)hw->back; | |
98 | ||
99 | if (!mem || !mem->va) | |
100 | return I40E_ERR_PARAM; | |
101 | dma_free_coherent(&adapter->pdev->dev, mem->size, | |
102 | mem->va, (dma_addr_t)mem->pa); | |
103 | return 0; | |
104 | } | |
105 | ||
106 | /** | |
107 | * i40evf_allocate_virt_mem_d - OS specific memory alloc for shared code | |
108 | * @hw: pointer to the HW structure | |
109 | * @mem: ptr to mem struct to fill out | |
110 | * @size: size of memory requested | |
111 | **/ | |
112 | i40e_status i40evf_allocate_virt_mem_d(struct i40e_hw *hw, | |
113 | struct i40e_virt_mem *mem, u32 size) | |
114 | { | |
115 | if (!mem) | |
116 | return I40E_ERR_PARAM; | |
117 | ||
118 | mem->size = size; | |
119 | mem->va = kzalloc(size, GFP_KERNEL); | |
120 | ||
121 | if (mem->va) | |
122 | return 0; | |
123 | else | |
124 | return I40E_ERR_NO_MEMORY; | |
125 | } | |
126 | ||
127 | /** | |
128 | * i40evf_free_virt_mem_d - OS specific memory free for shared code | |
129 | * @hw: pointer to the HW structure | |
130 | * @mem: ptr to mem struct to free | |
131 | **/ | |
132 | i40e_status i40evf_free_virt_mem_d(struct i40e_hw *hw, | |
133 | struct i40e_virt_mem *mem) | |
134 | { | |
135 | if (!mem) | |
136 | return I40E_ERR_PARAM; | |
137 | ||
138 | /* it's ok to kfree a NULL pointer */ | |
139 | kfree(mem->va); | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | /** | |
145 | * i40evf_debug_d - OS dependent version of debug printing | |
146 | * @hw: pointer to the HW structure | |
147 | * @mask: debug level mask | |
148 | * @fmt_str: printf-type format description | |
149 | **/ | |
150 | void i40evf_debug_d(void *hw, u32 mask, char *fmt_str, ...) | |
151 | { | |
152 | char buf[512]; | |
153 | va_list argptr; | |
154 | ||
155 | if (!(mask & ((struct i40e_hw *)hw)->debug_mask)) | |
156 | return; | |
157 | ||
158 | va_start(argptr, fmt_str); | |
159 | vsnprintf(buf, sizeof(buf), fmt_str, argptr); | |
160 | va_end(argptr); | |
161 | ||
162 | /* the debug string is already formatted with a newline */ | |
163 | pr_info("%s", buf); | |
164 | } | |
165 | ||
166 | /** | |
167 | * i40evf_tx_timeout - Respond to a Tx Hang | |
168 | * @netdev: network interface device structure | |
169 | **/ | |
170 | static void i40evf_tx_timeout(struct net_device *netdev) | |
171 | { | |
172 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
173 | ||
174 | adapter->tx_timeout_count++; | |
625777e3 | 175 | if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) { |
3526d800 | 176 | adapter->flags |= I40EVF_FLAG_RESET_NEEDED; |
625777e3 MW |
177 | schedule_work(&adapter->reset_task); |
178 | } | |
5eae00c5 GR |
179 | } |
180 | ||
181 | /** | |
182 | * i40evf_misc_irq_disable - Mask off interrupt generation on the NIC | |
183 | * @adapter: board private structure | |
184 | **/ | |
185 | static void i40evf_misc_irq_disable(struct i40evf_adapter *adapter) | |
186 | { | |
187 | struct i40e_hw *hw = &adapter->hw; | |
75a64435 | 188 | |
5eae00c5 GR |
189 | wr32(hw, I40E_VFINT_DYN_CTL01, 0); |
190 | ||
191 | /* read flush */ | |
192 | rd32(hw, I40E_VFGEN_RSTAT); | |
193 | ||
194 | synchronize_irq(adapter->msix_entries[0].vector); | |
195 | } | |
196 | ||
197 | /** | |
198 | * i40evf_misc_irq_enable - Enable default interrupt generation settings | |
199 | * @adapter: board private structure | |
200 | **/ | |
201 | static void i40evf_misc_irq_enable(struct i40evf_adapter *adapter) | |
202 | { | |
203 | struct i40e_hw *hw = &adapter->hw; | |
75a64435 | 204 | |
5eae00c5 GR |
205 | wr32(hw, I40E_VFINT_DYN_CTL01, I40E_VFINT_DYN_CTL01_INTENA_MASK | |
206 | I40E_VFINT_DYN_CTL01_ITR_INDX_MASK); | |
207 | wr32(hw, I40E_VFINT_ICR0_ENA1, I40E_VFINT_ICR0_ENA_ADMINQ_MASK); | |
208 | ||
209 | /* read flush */ | |
210 | rd32(hw, I40E_VFGEN_RSTAT); | |
211 | } | |
212 | ||
213 | /** | |
214 | * i40evf_irq_disable - Mask off interrupt generation on the NIC | |
215 | * @adapter: board private structure | |
216 | **/ | |
217 | static void i40evf_irq_disable(struct i40evf_adapter *adapter) | |
218 | { | |
219 | int i; | |
220 | struct i40e_hw *hw = &adapter->hw; | |
221 | ||
dbb01c8a MW |
222 | if (!adapter->msix_entries) |
223 | return; | |
224 | ||
5eae00c5 GR |
225 | for (i = 1; i < adapter->num_msix_vectors; i++) { |
226 | wr32(hw, I40E_VFINT_DYN_CTLN1(i - 1), 0); | |
227 | synchronize_irq(adapter->msix_entries[i].vector); | |
228 | } | |
229 | /* read flush */ | |
230 | rd32(hw, I40E_VFGEN_RSTAT); | |
5eae00c5 GR |
231 | } |
232 | ||
233 | /** | |
234 | * i40evf_irq_enable_queues - Enable interrupt for specified queues | |
235 | * @adapter: board private structure | |
236 | * @mask: bitmap of queues to enable | |
237 | **/ | |
238 | void i40evf_irq_enable_queues(struct i40evf_adapter *adapter, u32 mask) | |
239 | { | |
240 | struct i40e_hw *hw = &adapter->hw; | |
241 | int i; | |
242 | ||
243 | for (i = 1; i < adapter->num_msix_vectors; i++) { | |
244 | if (mask & (1 << (i - 1))) { | |
245 | wr32(hw, I40E_VFINT_DYN_CTLN1(i - 1), | |
246 | I40E_VFINT_DYN_CTLN1_INTENA_MASK | | |
247 | I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); | |
248 | } | |
249 | } | |
250 | } | |
251 | ||
252 | /** | |
253 | * i40evf_fire_sw_int - Generate SW interrupt for specified vectors | |
254 | * @adapter: board private structure | |
255 | * @mask: bitmap of vectors to trigger | |
256 | **/ | |
75a64435 | 257 | static void i40evf_fire_sw_int(struct i40evf_adapter *adapter, u32 mask) |
5eae00c5 GR |
258 | { |
259 | struct i40e_hw *hw = &adapter->hw; | |
260 | int i; | |
261 | uint32_t dyn_ctl; | |
262 | ||
164ec1bf MW |
263 | if (mask & 1) { |
264 | dyn_ctl = rd32(hw, I40E_VFINT_DYN_CTL01); | |
265 | dyn_ctl |= I40E_VFINT_DYN_CTLN_SWINT_TRIG_MASK | | |
266 | I40E_VFINT_DYN_CTLN_CLEARPBA_MASK; | |
267 | wr32(hw, I40E_VFINT_DYN_CTL01, dyn_ctl); | |
268 | } | |
5eae00c5 GR |
269 | for (i = 1; i < adapter->num_msix_vectors; i++) { |
270 | if (mask & (1 << i)) { | |
271 | dyn_ctl = rd32(hw, I40E_VFINT_DYN_CTLN1(i - 1)); | |
272 | dyn_ctl |= I40E_VFINT_DYN_CTLN_SWINT_TRIG_MASK | | |
273 | I40E_VFINT_DYN_CTLN_CLEARPBA_MASK; | |
274 | wr32(hw, I40E_VFINT_DYN_CTLN1(i - 1), dyn_ctl); | |
275 | } | |
276 | } | |
277 | } | |
278 | ||
279 | /** | |
280 | * i40evf_irq_enable - Enable default interrupt generation settings | |
281 | * @adapter: board private structure | |
282 | **/ | |
283 | void i40evf_irq_enable(struct i40evf_adapter *adapter, bool flush) | |
284 | { | |
285 | struct i40e_hw *hw = &adapter->hw; | |
286 | ||
164ec1bf | 287 | i40evf_misc_irq_enable(adapter); |
5eae00c5 GR |
288 | i40evf_irq_enable_queues(adapter, ~0); |
289 | ||
290 | if (flush) | |
291 | rd32(hw, I40E_VFGEN_RSTAT); | |
292 | } | |
293 | ||
294 | /** | |
295 | * i40evf_msix_aq - Interrupt handler for vector 0 | |
296 | * @irq: interrupt number | |
297 | * @data: pointer to netdev | |
298 | **/ | |
299 | static irqreturn_t i40evf_msix_aq(int irq, void *data) | |
300 | { | |
301 | struct net_device *netdev = data; | |
302 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
303 | struct i40e_hw *hw = &adapter->hw; | |
304 | u32 val; | |
305 | u32 ena_mask; | |
306 | ||
307 | /* handle non-queue interrupts */ | |
308 | val = rd32(hw, I40E_VFINT_ICR01); | |
309 | ena_mask = rd32(hw, I40E_VFINT_ICR0_ENA1); | |
310 | ||
311 | ||
312 | val = rd32(hw, I40E_VFINT_DYN_CTL01); | |
313 | val = val | I40E_PFINT_DYN_CTL0_CLEARPBA_MASK; | |
314 | wr32(hw, I40E_VFINT_DYN_CTL01, val); | |
315 | ||
5eae00c5 GR |
316 | /* schedule work on the private workqueue */ |
317 | schedule_work(&adapter->adminq_task); | |
318 | ||
319 | return IRQ_HANDLED; | |
320 | } | |
321 | ||
322 | /** | |
323 | * i40evf_msix_clean_rings - MSIX mode Interrupt Handler | |
324 | * @irq: interrupt number | |
325 | * @data: pointer to a q_vector | |
326 | **/ | |
327 | static irqreturn_t i40evf_msix_clean_rings(int irq, void *data) | |
328 | { | |
329 | struct i40e_q_vector *q_vector = data; | |
330 | ||
331 | if (!q_vector->tx.ring && !q_vector->rx.ring) | |
332 | return IRQ_HANDLED; | |
333 | ||
334 | napi_schedule(&q_vector->napi); | |
335 | ||
336 | return IRQ_HANDLED; | |
337 | } | |
338 | ||
339 | /** | |
340 | * i40evf_map_vector_to_rxq - associate irqs with rx queues | |
341 | * @adapter: board private structure | |
342 | * @v_idx: interrupt number | |
343 | * @r_idx: queue number | |
344 | **/ | |
345 | static void | |
346 | i40evf_map_vector_to_rxq(struct i40evf_adapter *adapter, int v_idx, int r_idx) | |
347 | { | |
348 | struct i40e_q_vector *q_vector = adapter->q_vector[v_idx]; | |
349 | struct i40e_ring *rx_ring = adapter->rx_rings[r_idx]; | |
350 | ||
351 | rx_ring->q_vector = q_vector; | |
352 | rx_ring->next = q_vector->rx.ring; | |
353 | rx_ring->vsi = &adapter->vsi; | |
354 | q_vector->rx.ring = rx_ring; | |
355 | q_vector->rx.count++; | |
356 | q_vector->rx.latency_range = I40E_LOW_LATENCY; | |
357 | } | |
358 | ||
359 | /** | |
360 | * i40evf_map_vector_to_txq - associate irqs with tx queues | |
361 | * @adapter: board private structure | |
362 | * @v_idx: interrupt number | |
363 | * @t_idx: queue number | |
364 | **/ | |
365 | static void | |
366 | i40evf_map_vector_to_txq(struct i40evf_adapter *adapter, int v_idx, int t_idx) | |
367 | { | |
368 | struct i40e_q_vector *q_vector = adapter->q_vector[v_idx]; | |
369 | struct i40e_ring *tx_ring = adapter->tx_rings[t_idx]; | |
370 | ||
371 | tx_ring->q_vector = q_vector; | |
372 | tx_ring->next = q_vector->tx.ring; | |
373 | tx_ring->vsi = &adapter->vsi; | |
374 | q_vector->tx.ring = tx_ring; | |
375 | q_vector->tx.count++; | |
376 | q_vector->tx.latency_range = I40E_LOW_LATENCY; | |
377 | q_vector->num_ringpairs++; | |
378 | q_vector->ring_mask |= (1 << t_idx); | |
379 | } | |
380 | ||
381 | /** | |
382 | * i40evf_map_rings_to_vectors - Maps descriptor rings to vectors | |
383 | * @adapter: board private structure to initialize | |
384 | * | |
385 | * This function maps descriptor rings to the queue-specific vectors | |
386 | * we were allotted through the MSI-X enabling code. Ideally, we'd have | |
387 | * one vector per ring/queue, but on a constrained vector budget, we | |
388 | * group the rings as "efficiently" as possible. You would add new | |
389 | * mapping configurations in here. | |
390 | **/ | |
391 | static int i40evf_map_rings_to_vectors(struct i40evf_adapter *adapter) | |
392 | { | |
393 | int q_vectors; | |
394 | int v_start = 0; | |
395 | int rxr_idx = 0, txr_idx = 0; | |
cc052927 MW |
396 | int rxr_remaining = adapter->num_active_queues; |
397 | int txr_remaining = adapter->num_active_queues; | |
5eae00c5 GR |
398 | int i, j; |
399 | int rqpv, tqpv; | |
400 | int err = 0; | |
401 | ||
402 | q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
403 | ||
404 | /* The ideal configuration... | |
405 | * We have enough vectors to map one per queue. | |
406 | */ | |
407 | if (q_vectors == (rxr_remaining * 2)) { | |
408 | for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++) | |
409 | i40evf_map_vector_to_rxq(adapter, v_start, rxr_idx); | |
410 | ||
411 | for (; txr_idx < txr_remaining; v_start++, txr_idx++) | |
412 | i40evf_map_vector_to_txq(adapter, v_start, txr_idx); | |
413 | goto out; | |
414 | } | |
415 | ||
416 | /* If we don't have enough vectors for a 1-to-1 | |
417 | * mapping, we'll have to group them so there are | |
418 | * multiple queues per vector. | |
419 | * Re-adjusting *qpv takes care of the remainder. | |
420 | */ | |
421 | for (i = v_start; i < q_vectors; i++) { | |
422 | rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - i); | |
423 | for (j = 0; j < rqpv; j++) { | |
424 | i40evf_map_vector_to_rxq(adapter, i, rxr_idx); | |
425 | rxr_idx++; | |
426 | rxr_remaining--; | |
427 | } | |
428 | } | |
429 | for (i = v_start; i < q_vectors; i++) { | |
430 | tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - i); | |
431 | for (j = 0; j < tqpv; j++) { | |
432 | i40evf_map_vector_to_txq(adapter, i, txr_idx); | |
433 | txr_idx++; | |
434 | txr_remaining--; | |
435 | } | |
436 | } | |
437 | ||
438 | out: | |
439 | adapter->aq_required |= I40EVF_FLAG_AQ_MAP_VECTORS; | |
440 | ||
441 | return err; | |
442 | } | |
443 | ||
444 | /** | |
445 | * i40evf_request_traffic_irqs - Initialize MSI-X interrupts | |
446 | * @adapter: board private structure | |
447 | * | |
448 | * Allocates MSI-X vectors for tx and rx handling, and requests | |
449 | * interrupts from the kernel. | |
450 | **/ | |
451 | static int | |
452 | i40evf_request_traffic_irqs(struct i40evf_adapter *adapter, char *basename) | |
453 | { | |
454 | int vector, err, q_vectors; | |
455 | int rx_int_idx = 0, tx_int_idx = 0; | |
456 | ||
457 | i40evf_irq_disable(adapter); | |
458 | /* Decrement for Other and TCP Timer vectors */ | |
459 | q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
460 | ||
461 | for (vector = 0; vector < q_vectors; vector++) { | |
462 | struct i40e_q_vector *q_vector = adapter->q_vector[vector]; | |
463 | ||
464 | if (q_vector->tx.ring && q_vector->rx.ring) { | |
465 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, | |
466 | "i40evf-%s-%s-%d", basename, | |
467 | "TxRx", rx_int_idx++); | |
468 | tx_int_idx++; | |
469 | } else if (q_vector->rx.ring) { | |
470 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, | |
471 | "i40evf-%s-%s-%d", basename, | |
472 | "rx", rx_int_idx++); | |
473 | } else if (q_vector->tx.ring) { | |
474 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, | |
475 | "i40evf-%s-%s-%d", basename, | |
476 | "tx", tx_int_idx++); | |
477 | } else { | |
478 | /* skip this unused q_vector */ | |
479 | continue; | |
480 | } | |
481 | err = request_irq( | |
482 | adapter->msix_entries[vector + NONQ_VECS].vector, | |
483 | i40evf_msix_clean_rings, | |
484 | 0, | |
485 | q_vector->name, | |
486 | q_vector); | |
487 | if (err) { | |
488 | dev_info(&adapter->pdev->dev, | |
489 | "%s: request_irq failed, error: %d\n", | |
490 | __func__, err); | |
491 | goto free_queue_irqs; | |
492 | } | |
493 | /* assign the mask for this irq */ | |
494 | irq_set_affinity_hint( | |
495 | adapter->msix_entries[vector + NONQ_VECS].vector, | |
496 | q_vector->affinity_mask); | |
497 | } | |
498 | ||
499 | return 0; | |
500 | ||
501 | free_queue_irqs: | |
502 | while (vector) { | |
503 | vector--; | |
504 | irq_set_affinity_hint( | |
505 | adapter->msix_entries[vector + NONQ_VECS].vector, | |
506 | NULL); | |
507 | free_irq(adapter->msix_entries[vector + NONQ_VECS].vector, | |
508 | adapter->q_vector[vector]); | |
509 | } | |
510 | return err; | |
511 | } | |
512 | ||
513 | /** | |
514 | * i40evf_request_misc_irq - Initialize MSI-X interrupts | |
515 | * @adapter: board private structure | |
516 | * | |
517 | * Allocates MSI-X vector 0 and requests interrupts from the kernel. This | |
518 | * vector is only for the admin queue, and stays active even when the netdev | |
519 | * is closed. | |
520 | **/ | |
521 | static int i40evf_request_misc_irq(struct i40evf_adapter *adapter) | |
522 | { | |
523 | struct net_device *netdev = adapter->netdev; | |
524 | int err; | |
525 | ||
b39c1e2c | 526 | snprintf(adapter->misc_vector_name, |
9a21a007 CW |
527 | sizeof(adapter->misc_vector_name) - 1, "i40evf-%s:mbx", |
528 | dev_name(&adapter->pdev->dev)); | |
5eae00c5 | 529 | err = request_irq(adapter->msix_entries[0].vector, |
e1dfee8e MW |
530 | &i40evf_msix_aq, 0, |
531 | adapter->misc_vector_name, netdev); | |
5eae00c5 GR |
532 | if (err) { |
533 | dev_err(&adapter->pdev->dev, | |
77fa28be CS |
534 | "request_irq for %s failed: %d\n", |
535 | adapter->misc_vector_name, err); | |
5eae00c5 GR |
536 | free_irq(adapter->msix_entries[0].vector, netdev); |
537 | } | |
538 | return err; | |
539 | } | |
540 | ||
541 | /** | |
542 | * i40evf_free_traffic_irqs - Free MSI-X interrupts | |
543 | * @adapter: board private structure | |
544 | * | |
545 | * Frees all MSI-X vectors other than 0. | |
546 | **/ | |
547 | static void i40evf_free_traffic_irqs(struct i40evf_adapter *adapter) | |
548 | { | |
549 | int i; | |
550 | int q_vectors; | |
75a64435 | 551 | |
5eae00c5 GR |
552 | q_vectors = adapter->num_msix_vectors - NONQ_VECS; |
553 | ||
554 | for (i = 0; i < q_vectors; i++) { | |
555 | irq_set_affinity_hint(adapter->msix_entries[i+1].vector, | |
556 | NULL); | |
557 | free_irq(adapter->msix_entries[i+1].vector, | |
558 | adapter->q_vector[i]); | |
559 | } | |
560 | } | |
561 | ||
562 | /** | |
563 | * i40evf_free_misc_irq - Free MSI-X miscellaneous vector | |
564 | * @adapter: board private structure | |
565 | * | |
566 | * Frees MSI-X vector 0. | |
567 | **/ | |
568 | static void i40evf_free_misc_irq(struct i40evf_adapter *adapter) | |
569 | { | |
570 | struct net_device *netdev = adapter->netdev; | |
571 | ||
572 | free_irq(adapter->msix_entries[0].vector, netdev); | |
573 | } | |
574 | ||
575 | /** | |
576 | * i40evf_configure_tx - Configure Transmit Unit after Reset | |
577 | * @adapter: board private structure | |
578 | * | |
579 | * Configure the Tx unit of the MAC after a reset. | |
580 | **/ | |
581 | static void i40evf_configure_tx(struct i40evf_adapter *adapter) | |
582 | { | |
583 | struct i40e_hw *hw = &adapter->hw; | |
584 | int i; | |
75a64435 | 585 | |
cc052927 | 586 | for (i = 0; i < adapter->num_active_queues; i++) |
5eae00c5 GR |
587 | adapter->tx_rings[i]->tail = hw->hw_addr + I40E_QTX_TAIL1(i); |
588 | } | |
589 | ||
590 | /** | |
591 | * i40evf_configure_rx - Configure Receive Unit after Reset | |
592 | * @adapter: board private structure | |
593 | * | |
594 | * Configure the Rx unit of the MAC after a reset. | |
595 | **/ | |
596 | static void i40evf_configure_rx(struct i40evf_adapter *adapter) | |
597 | { | |
598 | struct i40e_hw *hw = &adapter->hw; | |
599 | struct net_device *netdev = adapter->netdev; | |
600 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
601 | int i; | |
602 | int rx_buf_len; | |
603 | ||
604 | ||
605 | adapter->flags &= ~I40EVF_FLAG_RX_PS_CAPABLE; | |
606 | adapter->flags |= I40EVF_FLAG_RX_1BUF_CAPABLE; | |
607 | ||
608 | /* Decide whether to use packet split mode or not */ | |
609 | if (netdev->mtu > ETH_DATA_LEN) { | |
610 | if (adapter->flags & I40EVF_FLAG_RX_PS_CAPABLE) | |
611 | adapter->flags |= I40EVF_FLAG_RX_PS_ENABLED; | |
612 | else | |
613 | adapter->flags &= ~I40EVF_FLAG_RX_PS_ENABLED; | |
614 | } else { | |
615 | if (adapter->flags & I40EVF_FLAG_RX_1BUF_CAPABLE) | |
616 | adapter->flags &= ~I40EVF_FLAG_RX_PS_ENABLED; | |
617 | else | |
618 | adapter->flags |= I40EVF_FLAG_RX_PS_ENABLED; | |
619 | } | |
620 | ||
621 | /* Set the RX buffer length according to the mode */ | |
622 | if (adapter->flags & I40EVF_FLAG_RX_PS_ENABLED) { | |
623 | rx_buf_len = I40E_RX_HDR_SIZE; | |
624 | } else { | |
625 | if (netdev->mtu <= ETH_DATA_LEN) | |
626 | rx_buf_len = I40EVF_RXBUFFER_2048; | |
627 | else | |
628 | rx_buf_len = ALIGN(max_frame, 1024); | |
629 | } | |
630 | ||
cc052927 | 631 | for (i = 0; i < adapter->num_active_queues; i++) { |
5eae00c5 GR |
632 | adapter->rx_rings[i]->tail = hw->hw_addr + I40E_QRX_TAIL1(i); |
633 | adapter->rx_rings[i]->rx_buf_len = rx_buf_len; | |
634 | } | |
635 | } | |
636 | ||
637 | /** | |
638 | * i40evf_find_vlan - Search filter list for specific vlan filter | |
639 | * @adapter: board private structure | |
640 | * @vlan: vlan tag | |
641 | * | |
642 | * Returns ptr to the filter object or NULL | |
643 | **/ | |
644 | static struct | |
645 | i40evf_vlan_filter *i40evf_find_vlan(struct i40evf_adapter *adapter, u16 vlan) | |
646 | { | |
647 | struct i40evf_vlan_filter *f; | |
648 | ||
649 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
650 | if (vlan == f->vlan) | |
651 | return f; | |
652 | } | |
653 | return NULL; | |
654 | } | |
655 | ||
656 | /** | |
657 | * i40evf_add_vlan - Add a vlan filter to the list | |
658 | * @adapter: board private structure | |
659 | * @vlan: VLAN tag | |
660 | * | |
661 | * Returns ptr to the filter object or NULL when no memory available. | |
662 | **/ | |
663 | static struct | |
664 | i40evf_vlan_filter *i40evf_add_vlan(struct i40evf_adapter *adapter, u16 vlan) | |
665 | { | |
666 | struct i40evf_vlan_filter *f; | |
667 | ||
668 | f = i40evf_find_vlan(adapter, vlan); | |
348d4994 | 669 | if (!f) { |
5eae00c5 | 670 | f = kzalloc(sizeof(*f), GFP_ATOMIC); |
348d4994 | 671 | if (!f) |
5eae00c5 | 672 | return NULL; |
249c8b8d | 673 | |
5eae00c5 GR |
674 | f->vlan = vlan; |
675 | ||
676 | INIT_LIST_HEAD(&f->list); | |
677 | list_add(&f->list, &adapter->vlan_filter_list); | |
678 | f->add = true; | |
679 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER; | |
680 | } | |
681 | ||
682 | return f; | |
683 | } | |
684 | ||
685 | /** | |
686 | * i40evf_del_vlan - Remove a vlan filter from the list | |
687 | * @adapter: board private structure | |
688 | * @vlan: VLAN tag | |
689 | **/ | |
690 | static void i40evf_del_vlan(struct i40evf_adapter *adapter, u16 vlan) | |
691 | { | |
692 | struct i40evf_vlan_filter *f; | |
693 | ||
694 | f = i40evf_find_vlan(adapter, vlan); | |
695 | if (f) { | |
696 | f->remove = true; | |
697 | adapter->aq_required |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER; | |
698 | } | |
5eae00c5 GR |
699 | } |
700 | ||
701 | /** | |
702 | * i40evf_vlan_rx_add_vid - Add a VLAN filter to a device | |
703 | * @netdev: network device struct | |
704 | * @vid: VLAN tag | |
705 | **/ | |
706 | static int i40evf_vlan_rx_add_vid(struct net_device *netdev, | |
75a64435 | 707 | __always_unused __be16 proto, u16 vid) |
5eae00c5 GR |
708 | { |
709 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
710 | ||
711 | if (i40evf_add_vlan(adapter, vid) == NULL) | |
712 | return -ENOMEM; | |
713 | return 0; | |
714 | } | |
715 | ||
716 | /** | |
717 | * i40evf_vlan_rx_kill_vid - Remove a VLAN filter from a device | |
718 | * @netdev: network device struct | |
719 | * @vid: VLAN tag | |
720 | **/ | |
721 | static int i40evf_vlan_rx_kill_vid(struct net_device *netdev, | |
75a64435 | 722 | __always_unused __be16 proto, u16 vid) |
5eae00c5 GR |
723 | { |
724 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
725 | ||
726 | i40evf_del_vlan(adapter, vid); | |
727 | return 0; | |
728 | } | |
729 | ||
730 | /** | |
731 | * i40evf_find_filter - Search filter list for specific mac filter | |
732 | * @adapter: board private structure | |
733 | * @macaddr: the MAC address | |
734 | * | |
735 | * Returns ptr to the filter object or NULL | |
736 | **/ | |
737 | static struct | |
738 | i40evf_mac_filter *i40evf_find_filter(struct i40evf_adapter *adapter, | |
739 | u8 *macaddr) | |
740 | { | |
741 | struct i40evf_mac_filter *f; | |
742 | ||
743 | if (!macaddr) | |
744 | return NULL; | |
745 | ||
746 | list_for_each_entry(f, &adapter->mac_filter_list, list) { | |
747 | if (ether_addr_equal(macaddr, f->macaddr)) | |
748 | return f; | |
749 | } | |
750 | return NULL; | |
751 | } | |
752 | ||
753 | /** | |
754 | * i40e_add_filter - Add a mac filter to the filter list | |
755 | * @adapter: board private structure | |
756 | * @macaddr: the MAC address | |
757 | * | |
758 | * Returns ptr to the filter object or NULL when no memory available. | |
759 | **/ | |
760 | static struct | |
761 | i40evf_mac_filter *i40evf_add_filter(struct i40evf_adapter *adapter, | |
762 | u8 *macaddr) | |
763 | { | |
764 | struct i40evf_mac_filter *f; | |
54e16f64 | 765 | int count = 50; |
5eae00c5 GR |
766 | |
767 | if (!macaddr) | |
768 | return NULL; | |
769 | ||
770 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
54e16f64 | 771 | &adapter->crit_section)) { |
b65476cd | 772 | udelay(1); |
54e16f64 MW |
773 | if (--count == 0) |
774 | return NULL; | |
775 | } | |
5eae00c5 GR |
776 | |
777 | f = i40evf_find_filter(adapter, macaddr); | |
348d4994 | 778 | if (!f) { |
5eae00c5 | 779 | f = kzalloc(sizeof(*f), GFP_ATOMIC); |
348d4994 | 780 | if (!f) { |
5eae00c5 GR |
781 | clear_bit(__I40EVF_IN_CRITICAL_TASK, |
782 | &adapter->crit_section); | |
783 | return NULL; | |
784 | } | |
785 | ||
9a173901 | 786 | ether_addr_copy(f->macaddr, macaddr); |
5eae00c5 GR |
787 | |
788 | list_add(&f->list, &adapter->mac_filter_list); | |
789 | f->add = true; | |
790 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_MAC_FILTER; | |
791 | } | |
792 | ||
793 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); | |
794 | return f; | |
795 | } | |
796 | ||
797 | /** | |
798 | * i40evf_set_mac - NDO callback to set port mac address | |
799 | * @netdev: network interface device structure | |
800 | * @p: pointer to an address structure | |
801 | * | |
802 | * Returns 0 on success, negative on failure | |
803 | **/ | |
804 | static int i40evf_set_mac(struct net_device *netdev, void *p) | |
805 | { | |
806 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
807 | struct i40e_hw *hw = &adapter->hw; | |
808 | struct i40evf_mac_filter *f; | |
809 | struct sockaddr *addr = p; | |
810 | ||
811 | if (!is_valid_ether_addr(addr->sa_data)) | |
812 | return -EADDRNOTAVAIL; | |
813 | ||
814 | if (ether_addr_equal(netdev->dev_addr, addr->sa_data)) | |
815 | return 0; | |
816 | ||
817 | f = i40evf_add_filter(adapter, addr->sa_data); | |
818 | if (f) { | |
9a173901 GR |
819 | ether_addr_copy(hw->mac.addr, addr->sa_data); |
820 | ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr); | |
5eae00c5 GR |
821 | } |
822 | ||
823 | return (f == NULL) ? -ENOMEM : 0; | |
824 | } | |
825 | ||
826 | /** | |
827 | * i40evf_set_rx_mode - NDO callback to set the netdev filters | |
828 | * @netdev: network interface device structure | |
829 | **/ | |
830 | static void i40evf_set_rx_mode(struct net_device *netdev) | |
831 | { | |
832 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
833 | struct i40evf_mac_filter *f, *ftmp; | |
834 | struct netdev_hw_addr *uca; | |
835 | struct netdev_hw_addr *mca; | |
54e16f64 | 836 | int count = 50; |
5eae00c5 GR |
837 | |
838 | /* add addr if not already in the filter list */ | |
839 | netdev_for_each_uc_addr(uca, netdev) { | |
840 | i40evf_add_filter(adapter, uca->addr); | |
841 | } | |
842 | netdev_for_each_mc_addr(mca, netdev) { | |
843 | i40evf_add_filter(adapter, mca->addr); | |
844 | } | |
845 | ||
846 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
54e16f64 | 847 | &adapter->crit_section)) { |
b65476cd | 848 | udelay(1); |
54e16f64 MW |
849 | if (--count == 0) { |
850 | dev_err(&adapter->pdev->dev, | |
851 | "Failed to get lock in %s\n", __func__); | |
852 | return; | |
853 | } | |
854 | } | |
5eae00c5 GR |
855 | /* remove filter if not in netdev list */ |
856 | list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) { | |
857 | bool found = false; | |
858 | ||
dc5f2de6 | 859 | if (is_multicast_ether_addr(f->macaddr)) { |
5eae00c5 GR |
860 | netdev_for_each_mc_addr(mca, netdev) { |
861 | if (ether_addr_equal(mca->addr, f->macaddr)) { | |
862 | found = true; | |
863 | break; | |
864 | } | |
865 | } | |
866 | } else { | |
867 | netdev_for_each_uc_addr(uca, netdev) { | |
868 | if (ether_addr_equal(uca->addr, f->macaddr)) { | |
869 | found = true; | |
870 | break; | |
871 | } | |
872 | } | |
873 | } | |
874 | if (found) { | |
875 | f->remove = true; | |
876 | adapter->aq_required |= I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
877 | } | |
878 | } | |
879 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); | |
880 | } | |
881 | ||
882 | /** | |
883 | * i40evf_napi_enable_all - enable NAPI on all queue vectors | |
884 | * @adapter: board private structure | |
885 | **/ | |
886 | static void i40evf_napi_enable_all(struct i40evf_adapter *adapter) | |
887 | { | |
888 | int q_idx; | |
889 | struct i40e_q_vector *q_vector; | |
890 | int q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
891 | ||
892 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
893 | struct napi_struct *napi; | |
75a64435 | 894 | |
5eae00c5 GR |
895 | q_vector = adapter->q_vector[q_idx]; |
896 | napi = &q_vector->napi; | |
897 | napi_enable(napi); | |
898 | } | |
899 | } | |
900 | ||
901 | /** | |
902 | * i40evf_napi_disable_all - disable NAPI on all queue vectors | |
903 | * @adapter: board private structure | |
904 | **/ | |
905 | static void i40evf_napi_disable_all(struct i40evf_adapter *adapter) | |
906 | { | |
907 | int q_idx; | |
908 | struct i40e_q_vector *q_vector; | |
909 | int q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
910 | ||
911 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
912 | q_vector = adapter->q_vector[q_idx]; | |
913 | napi_disable(&q_vector->napi); | |
914 | } | |
915 | } | |
916 | ||
917 | /** | |
918 | * i40evf_configure - set up transmit and receive data structures | |
919 | * @adapter: board private structure | |
920 | **/ | |
921 | static void i40evf_configure(struct i40evf_adapter *adapter) | |
922 | { | |
923 | struct net_device *netdev = adapter->netdev; | |
924 | int i; | |
925 | ||
926 | i40evf_set_rx_mode(netdev); | |
927 | ||
928 | i40evf_configure_tx(adapter); | |
929 | i40evf_configure_rx(adapter); | |
930 | adapter->aq_required |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES; | |
931 | ||
cc052927 | 932 | for (i = 0; i < adapter->num_active_queues; i++) { |
5eae00c5 | 933 | struct i40e_ring *ring = adapter->rx_rings[i]; |
75a64435 | 934 | |
a132af24 | 935 | i40evf_alloc_rx_buffers_1buf(ring, ring->count); |
5eae00c5 GR |
936 | ring->next_to_use = ring->count - 1; |
937 | writel(ring->next_to_use, ring->tail); | |
938 | } | |
939 | } | |
940 | ||
941 | /** | |
942 | * i40evf_up_complete - Finish the last steps of bringing up a connection | |
943 | * @adapter: board private structure | |
944 | **/ | |
945 | static int i40evf_up_complete(struct i40evf_adapter *adapter) | |
946 | { | |
947 | adapter->state = __I40EVF_RUNNING; | |
948 | clear_bit(__I40E_DOWN, &adapter->vsi.state); | |
949 | ||
950 | i40evf_napi_enable_all(adapter); | |
951 | ||
952 | adapter->aq_required |= I40EVF_FLAG_AQ_ENABLE_QUEUES; | |
953 | mod_timer_pending(&adapter->watchdog_timer, jiffies + 1); | |
954 | return 0; | |
955 | } | |
956 | ||
5eae00c5 GR |
957 | /** |
958 | * i40e_down - Shutdown the connection processing | |
959 | * @adapter: board private structure | |
960 | **/ | |
961 | void i40evf_down(struct i40evf_adapter *adapter) | |
962 | { | |
963 | struct net_device *netdev = adapter->netdev; | |
964 | struct i40evf_mac_filter *f; | |
965 | ||
ddf0b3a6 MW |
966 | if (adapter->state == __I40EVF_DOWN) |
967 | return; | |
968 | ||
53d0b3ae MW |
969 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, |
970 | &adapter->crit_section)) | |
971 | usleep_range(500, 1000); | |
972 | ||
973 | i40evf_irq_disable(adapter); | |
748c434b | 974 | i40evf_napi_disable_all(adapter); |
53d0b3ae | 975 | |
ef8693eb | 976 | /* remove all MAC filters */ |
5eae00c5 GR |
977 | list_for_each_entry(f, &adapter->mac_filter_list, list) { |
978 | f->remove = true; | |
979 | } | |
ed1f5b58 MW |
980 | /* remove all VLAN filters */ |
981 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
982 | f->remove = true; | |
983 | } | |
ef8693eb MW |
984 | if (!(adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) && |
985 | adapter->state != __I40EVF_RESETTING) { | |
53d0b3ae MW |
986 | /* cancel any current operation */ |
987 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
988 | adapter->aq_pending = 0; | |
989 | /* Schedule operations to close down the HW. Don't wait | |
990 | * here for this to complete. The watchdog is still running | |
991 | * and it will take care of this. | |
992 | */ | |
993 | adapter->aq_required = I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
ed1f5b58 | 994 | adapter->aq_required |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER; |
ef8693eb | 995 | adapter->aq_required |= I40EVF_FLAG_AQ_DISABLE_QUEUES; |
ef8693eb | 996 | } |
5eae00c5 GR |
997 | netif_tx_disable(netdev); |
998 | ||
999 | netif_tx_stop_all_queues(netdev); | |
1000 | ||
53d0b3ae MW |
1001 | msleep(20); |
1002 | ||
5eae00c5 | 1003 | netif_carrier_off(netdev); |
53d0b3ae | 1004 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); |
5eae00c5 GR |
1005 | } |
1006 | ||
1007 | /** | |
1008 | * i40evf_acquire_msix_vectors - Setup the MSIX capability | |
1009 | * @adapter: board private structure | |
1010 | * @vectors: number of vectors to request | |
1011 | * | |
1012 | * Work with the OS to set up the MSIX vectors needed. | |
1013 | * | |
1014 | * Returns 0 on success, negative on failure | |
1015 | **/ | |
1016 | static int | |
1017 | i40evf_acquire_msix_vectors(struct i40evf_adapter *adapter, int vectors) | |
1018 | { | |
1019 | int err, vector_threshold; | |
1020 | ||
1021 | /* We'll want at least 3 (vector_threshold): | |
1022 | * 0) Other (Admin Queue and link, mostly) | |
1023 | * 1) TxQ[0] Cleanup | |
1024 | * 2) RxQ[0] Cleanup | |
1025 | */ | |
1026 | vector_threshold = MIN_MSIX_COUNT; | |
1027 | ||
1028 | /* The more we get, the more we will assign to Tx/Rx Cleanup | |
1029 | * for the separate queues...where Rx Cleanup >= Tx Cleanup. | |
1030 | * Right now, we simply care about how many we'll get; we'll | |
1031 | * set them up later while requesting irq's. | |
1032 | */ | |
fc2f2f5d AG |
1033 | err = pci_enable_msix_range(adapter->pdev, adapter->msix_entries, |
1034 | vector_threshold, vectors); | |
1035 | if (err < 0) { | |
80e72893 | 1036 | dev_err(&adapter->pdev->dev, "Unable to allocate MSI-X interrupts\n"); |
5eae00c5 GR |
1037 | kfree(adapter->msix_entries); |
1038 | adapter->msix_entries = NULL; | |
fc2f2f5d | 1039 | return err; |
5eae00c5 | 1040 | } |
fc2f2f5d AG |
1041 | |
1042 | /* Adjust for only the vectors we'll use, which is minimum | |
1043 | * of max_msix_q_vectors + NONQ_VECS, or the number of | |
1044 | * vectors we were allocated. | |
1045 | */ | |
1046 | adapter->num_msix_vectors = err; | |
1047 | return 0; | |
5eae00c5 GR |
1048 | } |
1049 | ||
1050 | /** | |
1051 | * i40evf_free_queues - Free memory for all rings | |
1052 | * @adapter: board private structure to initialize | |
1053 | * | |
1054 | * Free all of the memory associated with queue pairs. | |
1055 | **/ | |
1056 | static void i40evf_free_queues(struct i40evf_adapter *adapter) | |
1057 | { | |
1058 | int i; | |
1059 | ||
1060 | if (!adapter->vsi_res) | |
1061 | return; | |
cc052927 | 1062 | for (i = 0; i < adapter->num_active_queues; i++) { |
5eae00c5 GR |
1063 | if (adapter->tx_rings[i]) |
1064 | kfree_rcu(adapter->tx_rings[i], rcu); | |
1065 | adapter->tx_rings[i] = NULL; | |
1066 | adapter->rx_rings[i] = NULL; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | /** | |
1071 | * i40evf_alloc_queues - Allocate memory for all rings | |
1072 | * @adapter: board private structure to initialize | |
1073 | * | |
1074 | * We allocate one ring per queue at run-time since we don't know the | |
1075 | * number of queues at compile-time. The polling_netdev array is | |
1076 | * intended for Multiqueue, but should work fine with a single queue. | |
1077 | **/ | |
1078 | static int i40evf_alloc_queues(struct i40evf_adapter *adapter) | |
1079 | { | |
1080 | int i; | |
1081 | ||
cc052927 | 1082 | for (i = 0; i < adapter->num_active_queues; i++) { |
5eae00c5 GR |
1083 | struct i40e_ring *tx_ring; |
1084 | struct i40e_ring *rx_ring; | |
1085 | ||
75a64435 | 1086 | tx_ring = kzalloc(sizeof(*tx_ring) * 2, GFP_KERNEL); |
5eae00c5 GR |
1087 | if (!tx_ring) |
1088 | goto err_out; | |
1089 | ||
1090 | tx_ring->queue_index = i; | |
1091 | tx_ring->netdev = adapter->netdev; | |
1092 | tx_ring->dev = &adapter->pdev->dev; | |
d732a184 | 1093 | tx_ring->count = adapter->tx_desc_count; |
5eae00c5 GR |
1094 | adapter->tx_rings[i] = tx_ring; |
1095 | ||
1096 | rx_ring = &tx_ring[1]; | |
1097 | rx_ring->queue_index = i; | |
1098 | rx_ring->netdev = adapter->netdev; | |
1099 | rx_ring->dev = &adapter->pdev->dev; | |
d732a184 | 1100 | rx_ring->count = adapter->rx_desc_count; |
5eae00c5 GR |
1101 | adapter->rx_rings[i] = rx_ring; |
1102 | } | |
1103 | ||
1104 | return 0; | |
1105 | ||
1106 | err_out: | |
1107 | i40evf_free_queues(adapter); | |
1108 | return -ENOMEM; | |
1109 | } | |
1110 | ||
1111 | /** | |
1112 | * i40evf_set_interrupt_capability - set MSI-X or FAIL if not supported | |
1113 | * @adapter: board private structure to initialize | |
1114 | * | |
1115 | * Attempt to configure the interrupts using the best available | |
1116 | * capabilities of the hardware and the kernel. | |
1117 | **/ | |
1118 | static int i40evf_set_interrupt_capability(struct i40evf_adapter *adapter) | |
1119 | { | |
1120 | int vector, v_budget; | |
1121 | int pairs = 0; | |
1122 | int err = 0; | |
1123 | ||
1124 | if (!adapter->vsi_res) { | |
1125 | err = -EIO; | |
1126 | goto out; | |
1127 | } | |
cc052927 | 1128 | pairs = adapter->num_active_queues; |
5eae00c5 GR |
1129 | |
1130 | /* It's easy to be greedy for MSI-X vectors, but it really | |
1131 | * doesn't do us much good if we have a lot more vectors | |
1132 | * than CPU's. So let's be conservative and only ask for | |
1133 | * (roughly) twice the number of vectors as there are CPU's. | |
1134 | */ | |
30a500e2 MW |
1135 | v_budget = min_t(int, pairs, (int)(num_online_cpus() * 2)) + NONQ_VECS; |
1136 | v_budget = min_t(int, v_budget, (int)adapter->vf_res->max_vectors); | |
5eae00c5 | 1137 | |
5eae00c5 GR |
1138 | adapter->msix_entries = kcalloc(v_budget, |
1139 | sizeof(struct msix_entry), GFP_KERNEL); | |
1140 | if (!adapter->msix_entries) { | |
1141 | err = -ENOMEM; | |
1142 | goto out; | |
1143 | } | |
1144 | ||
1145 | for (vector = 0; vector < v_budget; vector++) | |
1146 | adapter->msix_entries[vector].entry = vector; | |
1147 | ||
1148 | i40evf_acquire_msix_vectors(adapter, v_budget); | |
1149 | ||
1150 | out: | |
1151 | adapter->netdev->real_num_tx_queues = pairs; | |
1152 | return err; | |
1153 | } | |
1154 | ||
1155 | /** | |
1156 | * i40evf_alloc_q_vectors - Allocate memory for interrupt vectors | |
1157 | * @adapter: board private structure to initialize | |
1158 | * | |
1159 | * We allocate one q_vector per queue interrupt. If allocation fails we | |
1160 | * return -ENOMEM. | |
1161 | **/ | |
1162 | static int i40evf_alloc_q_vectors(struct i40evf_adapter *adapter) | |
1163 | { | |
1164 | int q_idx, num_q_vectors; | |
1165 | struct i40e_q_vector *q_vector; | |
1166 | ||
1167 | num_q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
1168 | ||
1169 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { | |
75a64435 | 1170 | q_vector = kzalloc(sizeof(*q_vector), GFP_KERNEL); |
5eae00c5 GR |
1171 | if (!q_vector) |
1172 | goto err_out; | |
1173 | q_vector->adapter = adapter; | |
1174 | q_vector->vsi = &adapter->vsi; | |
1175 | q_vector->v_idx = q_idx; | |
1176 | netif_napi_add(adapter->netdev, &q_vector->napi, | |
75a64435 | 1177 | i40evf_napi_poll, NAPI_POLL_WEIGHT); |
5eae00c5 GR |
1178 | adapter->q_vector[q_idx] = q_vector; |
1179 | } | |
1180 | ||
1181 | return 0; | |
1182 | ||
1183 | err_out: | |
1184 | while (q_idx) { | |
1185 | q_idx--; | |
1186 | q_vector = adapter->q_vector[q_idx]; | |
1187 | netif_napi_del(&q_vector->napi); | |
1188 | kfree(q_vector); | |
1189 | adapter->q_vector[q_idx] = NULL; | |
1190 | } | |
1191 | return -ENOMEM; | |
1192 | } | |
1193 | ||
1194 | /** | |
1195 | * i40evf_free_q_vectors - Free memory allocated for interrupt vectors | |
1196 | * @adapter: board private structure to initialize | |
1197 | * | |
1198 | * This function frees the memory allocated to the q_vectors. In addition if | |
1199 | * NAPI is enabled it will delete any references to the NAPI struct prior | |
1200 | * to freeing the q_vector. | |
1201 | **/ | |
1202 | static void i40evf_free_q_vectors(struct i40evf_adapter *adapter) | |
1203 | { | |
1204 | int q_idx, num_q_vectors; | |
1205 | int napi_vectors; | |
1206 | ||
1207 | num_q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
cc052927 | 1208 | napi_vectors = adapter->num_active_queues; |
5eae00c5 GR |
1209 | |
1210 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { | |
1211 | struct i40e_q_vector *q_vector = adapter->q_vector[q_idx]; | |
1212 | ||
1213 | adapter->q_vector[q_idx] = NULL; | |
1214 | if (q_idx < napi_vectors) | |
1215 | netif_napi_del(&q_vector->napi); | |
1216 | kfree(q_vector); | |
1217 | } | |
1218 | } | |
1219 | ||
1220 | /** | |
1221 | * i40evf_reset_interrupt_capability - Reset MSIX setup | |
1222 | * @adapter: board private structure | |
1223 | * | |
1224 | **/ | |
1225 | void i40evf_reset_interrupt_capability(struct i40evf_adapter *adapter) | |
1226 | { | |
1227 | pci_disable_msix(adapter->pdev); | |
1228 | kfree(adapter->msix_entries); | |
1229 | adapter->msix_entries = NULL; | |
5eae00c5 GR |
1230 | } |
1231 | ||
1232 | /** | |
1233 | * i40evf_init_interrupt_scheme - Determine if MSIX is supported and init | |
1234 | * @adapter: board private structure to initialize | |
1235 | * | |
1236 | **/ | |
1237 | int i40evf_init_interrupt_scheme(struct i40evf_adapter *adapter) | |
1238 | { | |
1239 | int err; | |
1240 | ||
1241 | err = i40evf_set_interrupt_capability(adapter); | |
1242 | if (err) { | |
1243 | dev_err(&adapter->pdev->dev, | |
1244 | "Unable to setup interrupt capabilities\n"); | |
1245 | goto err_set_interrupt; | |
1246 | } | |
1247 | ||
1248 | err = i40evf_alloc_q_vectors(adapter); | |
1249 | if (err) { | |
1250 | dev_err(&adapter->pdev->dev, | |
1251 | "Unable to allocate memory for queue vectors\n"); | |
1252 | goto err_alloc_q_vectors; | |
1253 | } | |
1254 | ||
1255 | err = i40evf_alloc_queues(adapter); | |
1256 | if (err) { | |
1257 | dev_err(&adapter->pdev->dev, | |
1258 | "Unable to allocate memory for queues\n"); | |
1259 | goto err_alloc_queues; | |
1260 | } | |
1261 | ||
1262 | dev_info(&adapter->pdev->dev, "Multiqueue %s: Queue pair count = %u", | |
75a64435 MW |
1263 | (adapter->num_active_queues > 1) ? "Enabled" : "Disabled", |
1264 | adapter->num_active_queues); | |
5eae00c5 GR |
1265 | |
1266 | return 0; | |
1267 | err_alloc_queues: | |
1268 | i40evf_free_q_vectors(adapter); | |
1269 | err_alloc_q_vectors: | |
1270 | i40evf_reset_interrupt_capability(adapter); | |
1271 | err_set_interrupt: | |
1272 | return err; | |
1273 | } | |
1274 | ||
1275 | /** | |
1276 | * i40evf_watchdog_timer - Periodic call-back timer | |
1277 | * @data: pointer to adapter disguised as unsigned long | |
1278 | **/ | |
1279 | static void i40evf_watchdog_timer(unsigned long data) | |
1280 | { | |
1281 | struct i40evf_adapter *adapter = (struct i40evf_adapter *)data; | |
75a64435 | 1282 | |
5eae00c5 GR |
1283 | schedule_work(&adapter->watchdog_task); |
1284 | /* timer will be rescheduled in watchdog task */ | |
1285 | } | |
1286 | ||
1287 | /** | |
1288 | * i40evf_watchdog_task - Periodic call-back task | |
1289 | * @work: pointer to work_struct | |
1290 | **/ | |
1291 | static void i40evf_watchdog_task(struct work_struct *work) | |
1292 | { | |
1293 | struct i40evf_adapter *adapter = container_of(work, | |
75a64435 MW |
1294 | struct i40evf_adapter, |
1295 | watchdog_task); | |
5eae00c5 | 1296 | struct i40e_hw *hw = &adapter->hw; |
fd35886a | 1297 | uint32_t rstat_val; |
5eae00c5 | 1298 | |
ef8693eb MW |
1299 | if (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section)) |
1300 | goto restart_watchdog; | |
1301 | ||
1302 | if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) { | |
fd35886a AS |
1303 | rstat_val = rd32(hw, I40E_VFGEN_RSTAT) & |
1304 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; | |
1305 | if ((rstat_val == I40E_VFR_VFACTIVE) || | |
1306 | (rstat_val == I40E_VFR_COMPLETED)) { | |
ef8693eb MW |
1307 | /* A chance for redemption! */ |
1308 | dev_err(&adapter->pdev->dev, "Hardware came out of reset. Attempting reinit.\n"); | |
1309 | adapter->state = __I40EVF_STARTUP; | |
1310 | adapter->flags &= ~I40EVF_FLAG_PF_COMMS_FAILED; | |
1311 | schedule_delayed_work(&adapter->init_task, 10); | |
1312 | clear_bit(__I40EVF_IN_CRITICAL_TASK, | |
1313 | &adapter->crit_section); | |
1314 | /* Don't reschedule the watchdog, since we've restarted | |
1315 | * the init task. When init_task contacts the PF and | |
1316 | * gets everything set up again, it'll restart the | |
1317 | * watchdog for us. Down, boy. Sit. Stay. Woof. | |
1318 | */ | |
1319 | return; | |
1320 | } | |
1321 | adapter->aq_pending = 0; | |
1322 | adapter->aq_required = 0; | |
1323 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
5eae00c5 | 1324 | goto watchdog_done; |
ef8693eb | 1325 | } |
5eae00c5 | 1326 | |
ef8693eb MW |
1327 | if ((adapter->state < __I40EVF_DOWN) || |
1328 | (adapter->flags & I40EVF_FLAG_RESET_PENDING)) | |
5eae00c5 GR |
1329 | goto watchdog_done; |
1330 | ||
ef8693eb | 1331 | /* check for reset */ |
fd35886a | 1332 | rstat_val = rd32(hw, I40E_VFGEN_RSTAT) & |
75a64435 | 1333 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; |
ef8693eb | 1334 | if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING) && |
fd35886a AS |
1335 | (rstat_val != I40E_VFR_VFACTIVE) && |
1336 | (rstat_val != I40E_VFR_COMPLETED)) { | |
5eae00c5 | 1337 | adapter->state = __I40EVF_RESETTING; |
ef8693eb | 1338 | adapter->flags |= I40EVF_FLAG_RESET_PENDING; |
249c8b8d | 1339 | dev_err(&adapter->pdev->dev, "Hardware reset detected\n"); |
5eae00c5 | 1340 | schedule_work(&adapter->reset_task); |
ef8693eb MW |
1341 | adapter->aq_pending = 0; |
1342 | adapter->aq_required = 0; | |
1343 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
5eae00c5 GR |
1344 | goto watchdog_done; |
1345 | } | |
1346 | ||
1347 | /* Process admin queue tasks. After init, everything gets done | |
1348 | * here so we don't race on the admin queue. | |
1349 | */ | |
0758e7cb MW |
1350 | if (adapter->aq_pending) { |
1351 | if (!i40evf_asq_done(hw)) { | |
1352 | dev_dbg(&adapter->pdev->dev, "Admin queue timeout\n"); | |
1353 | i40evf_send_api_ver(adapter); | |
1354 | } | |
5eae00c5 | 1355 | goto watchdog_done; |
0758e7cb | 1356 | } |
5eae00c5 GR |
1357 | |
1358 | if (adapter->aq_required & I40EVF_FLAG_AQ_MAP_VECTORS) { | |
1359 | i40evf_map_queues(adapter); | |
1360 | goto watchdog_done; | |
1361 | } | |
1362 | ||
1363 | if (adapter->aq_required & I40EVF_FLAG_AQ_ADD_MAC_FILTER) { | |
1364 | i40evf_add_ether_addrs(adapter); | |
1365 | goto watchdog_done; | |
1366 | } | |
1367 | ||
1368 | if (adapter->aq_required & I40EVF_FLAG_AQ_ADD_VLAN_FILTER) { | |
1369 | i40evf_add_vlans(adapter); | |
1370 | goto watchdog_done; | |
1371 | } | |
1372 | ||
1373 | if (adapter->aq_required & I40EVF_FLAG_AQ_DEL_MAC_FILTER) { | |
1374 | i40evf_del_ether_addrs(adapter); | |
1375 | goto watchdog_done; | |
1376 | } | |
1377 | ||
1378 | if (adapter->aq_required & I40EVF_FLAG_AQ_DEL_VLAN_FILTER) { | |
1379 | i40evf_del_vlans(adapter); | |
1380 | goto watchdog_done; | |
1381 | } | |
1382 | ||
1383 | if (adapter->aq_required & I40EVF_FLAG_AQ_DISABLE_QUEUES) { | |
1384 | i40evf_disable_queues(adapter); | |
1385 | goto watchdog_done; | |
1386 | } | |
1387 | ||
1388 | if (adapter->aq_required & I40EVF_FLAG_AQ_CONFIGURE_QUEUES) { | |
1389 | i40evf_configure_queues(adapter); | |
1390 | goto watchdog_done; | |
1391 | } | |
1392 | ||
1393 | if (adapter->aq_required & I40EVF_FLAG_AQ_ENABLE_QUEUES) { | |
1394 | i40evf_enable_queues(adapter); | |
1395 | goto watchdog_done; | |
1396 | } | |
1397 | ||
1398 | if (adapter->state == __I40EVF_RUNNING) | |
1399 | i40evf_request_stats(adapter); | |
5eae00c5 | 1400 | watchdog_done: |
4870e176 MW |
1401 | if (adapter->state == __I40EVF_RUNNING) { |
1402 | i40evf_irq_enable_queues(adapter, ~0); | |
1403 | i40evf_fire_sw_int(adapter, 0xFF); | |
1404 | } else { | |
1405 | i40evf_fire_sw_int(adapter, 0x1); | |
1406 | } | |
1407 | ||
ef8693eb MW |
1408 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); |
1409 | restart_watchdog: | |
d3e2edb7 AS |
1410 | if (adapter->state == __I40EVF_REMOVE) |
1411 | return; | |
5eae00c5 GR |
1412 | if (adapter->aq_required) |
1413 | mod_timer(&adapter->watchdog_timer, | |
1414 | jiffies + msecs_to_jiffies(20)); | |
1415 | else | |
1416 | mod_timer(&adapter->watchdog_timer, jiffies + (HZ * 2)); | |
5eae00c5 GR |
1417 | schedule_work(&adapter->adminq_task); |
1418 | } | |
1419 | ||
5b7af02c | 1420 | /** |
3dd5550f | 1421 | * next_queue - increment to next available tx queue |
5b7af02c MW |
1422 | * @adapter: board private structure |
1423 | * @j: queue counter | |
1424 | * | |
1425 | * Helper function for RSS programming to increment through available | |
1426 | * queus. Returns the next queue value. | |
1427 | **/ | |
96d47704 MW |
1428 | static int next_queue(struct i40evf_adapter *adapter, int j) |
1429 | { | |
1430 | j += 1; | |
1431 | ||
cc052927 | 1432 | return j >= adapter->num_active_queues ? 0 : j; |
96d47704 MW |
1433 | } |
1434 | ||
5eae00c5 GR |
1435 | /** |
1436 | * i40evf_configure_rss - Prepare for RSS if used | |
1437 | * @adapter: board private structure | |
1438 | **/ | |
1439 | static void i40evf_configure_rss(struct i40evf_adapter *adapter) | |
1440 | { | |
22f258a1 | 1441 | u32 rss_key[I40E_VFQF_HKEY_MAX_INDEX + 1]; |
5eae00c5 GR |
1442 | struct i40e_hw *hw = &adapter->hw; |
1443 | u32 lut = 0; | |
1444 | int i, j; | |
1445 | u64 hena; | |
1446 | ||
cc052927 MW |
1447 | /* No RSS for single queue. */ |
1448 | if (adapter->num_active_queues == 1) { | |
1449 | wr32(hw, I40E_VFQF_HENA(0), 0); | |
1450 | wr32(hw, I40E_VFQF_HENA(1), 0); | |
1451 | return; | |
1452 | } | |
5eae00c5 | 1453 | |
cc052927 | 1454 | /* Hash type is configured by the PF - we just supply the key */ |
22f258a1 | 1455 | netdev_rss_key_fill(rss_key, sizeof(rss_key)); |
5eae00c5 | 1456 | for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++) |
22f258a1 | 1457 | wr32(hw, I40E_VFQF_HKEY(i), rss_key[i]); |
5eae00c5 GR |
1458 | |
1459 | /* Enable PCTYPES for RSS, TCP/UDP with IPv4/IPv6 */ | |
1460 | hena = I40E_DEFAULT_RSS_HENA; | |
1461 | wr32(hw, I40E_VFQF_HENA(0), (u32)hena); | |
1462 | wr32(hw, I40E_VFQF_HENA(1), (u32)(hena >> 32)); | |
1463 | ||
1464 | /* Populate the LUT with max no. of queues in round robin fashion */ | |
cc052927 | 1465 | j = adapter->num_active_queues; |
96d47704 | 1466 | for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++) { |
5b7af02c MW |
1467 | j = next_queue(adapter, j); |
1468 | lut = j; | |
1469 | j = next_queue(adapter, j); | |
1470 | lut |= j << 8; | |
1471 | j = next_queue(adapter, j); | |
1472 | lut |= j << 16; | |
1473 | j = next_queue(adapter, j); | |
1474 | lut |= j << 24; | |
96d47704 | 1475 | wr32(hw, I40E_VFQF_HLUT(i), lut); |
5eae00c5 GR |
1476 | } |
1477 | i40e_flush(hw); | |
1478 | } | |
1479 | ||
ef8693eb MW |
1480 | #define I40EVF_RESET_WAIT_MS 100 |
1481 | #define I40EVF_RESET_WAIT_COUNT 200 | |
5eae00c5 GR |
1482 | /** |
1483 | * i40evf_reset_task - Call-back task to handle hardware reset | |
1484 | * @work: pointer to work_struct | |
1485 | * | |
1486 | * During reset we need to shut down and reinitialize the admin queue | |
1487 | * before we can use it to communicate with the PF again. We also clear | |
1488 | * and reinit the rings because that context is lost as well. | |
1489 | **/ | |
1490 | static void i40evf_reset_task(struct work_struct *work) | |
1491 | { | |
ef8693eb MW |
1492 | struct i40evf_adapter *adapter = container_of(work, |
1493 | struct i40evf_adapter, | |
1494 | reset_task); | |
ac833bbf | 1495 | struct net_device *netdev = adapter->netdev; |
5eae00c5 | 1496 | struct i40e_hw *hw = &adapter->hw; |
ac833bbf | 1497 | struct i40evf_mac_filter *f; |
5eae00c5 | 1498 | uint32_t rstat_val; |
ac833bbf | 1499 | int i = 0, err; |
5eae00c5 GR |
1500 | |
1501 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
1502 | &adapter->crit_section)) | |
f98a2006 | 1503 | usleep_range(500, 1000); |
3526d800 MW |
1504 | |
1505 | if (adapter->flags & I40EVF_FLAG_RESET_NEEDED) { | |
1506 | dev_info(&adapter->pdev->dev, "Requesting reset from PF\n"); | |
1507 | i40evf_request_reset(adapter); | |
1508 | } | |
1509 | ||
ef8693eb MW |
1510 | /* poll until we see the reset actually happen */ |
1511 | for (i = 0; i < I40EVF_RESET_WAIT_COUNT; i++) { | |
1512 | rstat_val = rd32(hw, I40E_VFGEN_RSTAT) & | |
1513 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; | |
fd35886a AS |
1514 | if ((rstat_val != I40E_VFR_VFACTIVE) && |
1515 | (rstat_val != I40E_VFR_COMPLETED)) | |
ef8693eb | 1516 | break; |
c88e38cc | 1517 | msleep(I40EVF_RESET_WAIT_MS); |
ef8693eb MW |
1518 | } |
1519 | if (i == I40EVF_RESET_WAIT_COUNT) { | |
ef8693eb MW |
1520 | adapter->flags &= ~I40EVF_FLAG_RESET_PENDING; |
1521 | goto continue_reset; /* act like the reset happened */ | |
1522 | } | |
5eae00c5 | 1523 | |
ef8693eb MW |
1524 | /* wait until the reset is complete and the PF is responding to us */ |
1525 | for (i = 0; i < I40EVF_RESET_WAIT_COUNT; i++) { | |
5eae00c5 GR |
1526 | rstat_val = rd32(hw, I40E_VFGEN_RSTAT) & |
1527 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; | |
fd35886a AS |
1528 | if ((rstat_val == I40E_VFR_VFACTIVE) || |
1529 | (rstat_val == I40E_VFR_COMPLETED)) | |
5eae00c5 | 1530 | break; |
c88e38cc | 1531 | msleep(I40EVF_RESET_WAIT_MS); |
5eae00c5 | 1532 | } |
ef8693eb | 1533 | if (i == I40EVF_RESET_WAIT_COUNT) { |
6ba36a24 MW |
1534 | struct i40evf_mac_filter *f, *ftmp; |
1535 | struct i40evf_vlan_filter *fv, *fvtmp; | |
1536 | ||
5eae00c5 | 1537 | /* reset never finished */ |
80e72893 | 1538 | dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n", |
ef8693eb MW |
1539 | rstat_val); |
1540 | adapter->flags |= I40EVF_FLAG_PF_COMMS_FAILED; | |
1541 | ||
169f4076 MW |
1542 | if (netif_running(adapter->netdev)) { |
1543 | set_bit(__I40E_DOWN, &adapter->vsi.state); | |
ac833bbf MW |
1544 | i40evf_irq_disable(adapter); |
1545 | i40evf_napi_disable_all(adapter); | |
1546 | netif_tx_disable(netdev); | |
1547 | netif_tx_stop_all_queues(netdev); | |
1548 | netif_carrier_off(netdev); | |
169f4076 MW |
1549 | i40evf_free_traffic_irqs(adapter); |
1550 | i40evf_free_all_tx_resources(adapter); | |
1551 | i40evf_free_all_rx_resources(adapter); | |
1552 | } | |
6ba36a24 MW |
1553 | |
1554 | /* Delete all of the filters, both MAC and VLAN. */ | |
1555 | list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, | |
1556 | list) { | |
1557 | list_del(&f->list); | |
1558 | kfree(f); | |
1559 | } | |
1560 | list_for_each_entry_safe(fv, fvtmp, &adapter->vlan_filter_list, | |
1561 | list) { | |
1562 | list_del(&fv->list); | |
1563 | kfree(fv); | |
1564 | } | |
1565 | ||
ef8693eb MW |
1566 | i40evf_free_misc_irq(adapter); |
1567 | i40evf_reset_interrupt_capability(adapter); | |
1568 | i40evf_free_queues(adapter); | |
d31944d6 | 1569 | i40evf_free_q_vectors(adapter); |
ef8693eb MW |
1570 | kfree(adapter->vf_res); |
1571 | i40evf_shutdown_adminq(hw); | |
1572 | adapter->netdev->flags &= ~IFF_UP; | |
1573 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); | |
1574 | return; /* Do not attempt to reinit. It's dead, Jim. */ | |
5eae00c5 | 1575 | } |
ef8693eb MW |
1576 | |
1577 | continue_reset: | |
1578 | adapter->flags &= ~I40EVF_FLAG_RESET_PENDING; | |
1579 | ||
ac833bbf MW |
1580 | i40evf_irq_disable(adapter); |
1581 | i40evf_napi_disable_all(adapter); | |
1582 | ||
1583 | netif_tx_disable(netdev); | |
1584 | ||
1585 | netif_tx_stop_all_queues(netdev); | |
1586 | ||
1587 | netif_carrier_off(netdev); | |
5eae00c5 GR |
1588 | adapter->state = __I40EVF_RESETTING; |
1589 | ||
1590 | /* kill and reinit the admin queue */ | |
1591 | if (i40evf_shutdown_adminq(hw)) | |
ac833bbf MW |
1592 | dev_warn(&adapter->pdev->dev, "Failed to shut down adminq\n"); |
1593 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
5eae00c5 GR |
1594 | err = i40evf_init_adminq(hw); |
1595 | if (err) | |
ac833bbf MW |
1596 | dev_info(&adapter->pdev->dev, "Failed to init adminq: %d\n", |
1597 | err); | |
5eae00c5 | 1598 | |
5eae00c5 | 1599 | i40evf_map_queues(adapter); |
ac833bbf MW |
1600 | |
1601 | /* re-add all MAC filters */ | |
1602 | list_for_each_entry(f, &adapter->mac_filter_list, list) { | |
1603 | f->add = true; | |
1604 | } | |
1605 | /* re-add all VLAN filters */ | |
1606 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
1607 | f->add = true; | |
1608 | } | |
1609 | adapter->aq_required = I40EVF_FLAG_AQ_ADD_MAC_FILTER; | |
1610 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER; | |
5eae00c5 GR |
1611 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); |
1612 | ||
1613 | mod_timer(&adapter->watchdog_timer, jiffies + 2); | |
1614 | ||
1615 | if (netif_running(adapter->netdev)) { | |
1616 | /* allocate transmit descriptors */ | |
1617 | err = i40evf_setup_all_tx_resources(adapter); | |
1618 | if (err) | |
1619 | goto reset_err; | |
1620 | ||
1621 | /* allocate receive descriptors */ | |
1622 | err = i40evf_setup_all_rx_resources(adapter); | |
1623 | if (err) | |
1624 | goto reset_err; | |
1625 | ||
1626 | i40evf_configure(adapter); | |
1627 | ||
1628 | err = i40evf_up_complete(adapter); | |
1629 | if (err) | |
1630 | goto reset_err; | |
1631 | ||
1632 | i40evf_irq_enable(adapter, true); | |
1633 | } | |
1634 | return; | |
1635 | reset_err: | |
80e72893 | 1636 | dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n"); |
5eae00c5 GR |
1637 | i40evf_close(adapter->netdev); |
1638 | } | |
1639 | ||
1640 | /** | |
1641 | * i40evf_adminq_task - worker thread to clean the admin queue | |
1642 | * @work: pointer to work_struct containing our data | |
1643 | **/ | |
1644 | static void i40evf_adminq_task(struct work_struct *work) | |
1645 | { | |
1646 | struct i40evf_adapter *adapter = | |
1647 | container_of(work, struct i40evf_adapter, adminq_task); | |
1648 | struct i40e_hw *hw = &adapter->hw; | |
1649 | struct i40e_arq_event_info event; | |
1650 | struct i40e_virtchnl_msg *v_msg; | |
1651 | i40e_status ret; | |
912257e5 | 1652 | u32 val, oldval; |
5eae00c5 GR |
1653 | u16 pending; |
1654 | ||
ef8693eb | 1655 | if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) |
7235448c | 1656 | goto out; |
ef8693eb | 1657 | |
1001dc37 MW |
1658 | event.buf_len = I40EVF_MAX_AQ_BUF_SIZE; |
1659 | event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL); | |
249c8b8d | 1660 | if (!event.msg_buf) |
7235448c | 1661 | goto out; |
249c8b8d | 1662 | |
5eae00c5 GR |
1663 | v_msg = (struct i40e_virtchnl_msg *)&event.desc; |
1664 | do { | |
1665 | ret = i40evf_clean_arq_element(hw, &event, &pending); | |
8b011ebb | 1666 | if (ret || !v_msg->v_opcode) |
5eae00c5 GR |
1667 | break; /* No event to process or error cleaning ARQ */ |
1668 | ||
1669 | i40evf_virtchnl_completion(adapter, v_msg->v_opcode, | |
1670 | v_msg->v_retval, event.msg_buf, | |
1001dc37 | 1671 | event.msg_len); |
75a64435 | 1672 | if (pending != 0) |
5eae00c5 | 1673 | memset(event.msg_buf, 0, I40EVF_MAX_AQ_BUF_SIZE); |
5eae00c5 GR |
1674 | } while (pending); |
1675 | ||
912257e5 MW |
1676 | /* check for error indications */ |
1677 | val = rd32(hw, hw->aq.arq.len); | |
1678 | oldval = val; | |
1679 | if (val & I40E_VF_ARQLEN_ARQVFE_MASK) { | |
1680 | dev_info(&adapter->pdev->dev, "ARQ VF Error detected\n"); | |
1681 | val &= ~I40E_VF_ARQLEN_ARQVFE_MASK; | |
1682 | } | |
1683 | if (val & I40E_VF_ARQLEN_ARQOVFL_MASK) { | |
1684 | dev_info(&adapter->pdev->dev, "ARQ Overflow Error detected\n"); | |
1685 | val &= ~I40E_VF_ARQLEN_ARQOVFL_MASK; | |
1686 | } | |
1687 | if (val & I40E_VF_ARQLEN_ARQCRIT_MASK) { | |
1688 | dev_info(&adapter->pdev->dev, "ARQ Critical Error detected\n"); | |
1689 | val &= ~I40E_VF_ARQLEN_ARQCRIT_MASK; | |
1690 | } | |
1691 | if (oldval != val) | |
1692 | wr32(hw, hw->aq.arq.len, val); | |
1693 | ||
1694 | val = rd32(hw, hw->aq.asq.len); | |
1695 | oldval = val; | |
1696 | if (val & I40E_VF_ATQLEN_ATQVFE_MASK) { | |
1697 | dev_info(&adapter->pdev->dev, "ASQ VF Error detected\n"); | |
1698 | val &= ~I40E_VF_ATQLEN_ATQVFE_MASK; | |
1699 | } | |
1700 | if (val & I40E_VF_ATQLEN_ATQOVFL_MASK) { | |
1701 | dev_info(&adapter->pdev->dev, "ASQ Overflow Error detected\n"); | |
1702 | val &= ~I40E_VF_ATQLEN_ATQOVFL_MASK; | |
1703 | } | |
1704 | if (val & I40E_VF_ATQLEN_ATQCRIT_MASK) { | |
1705 | dev_info(&adapter->pdev->dev, "ASQ Critical Error detected\n"); | |
1706 | val &= ~I40E_VF_ATQLEN_ATQCRIT_MASK; | |
1707 | } | |
1708 | if (oldval != val) | |
1709 | wr32(hw, hw->aq.asq.len, val); | |
1710 | ||
7235448c MW |
1711 | kfree(event.msg_buf); |
1712 | out: | |
5eae00c5 GR |
1713 | /* re-enable Admin queue interrupt cause */ |
1714 | i40evf_misc_irq_enable(adapter); | |
5eae00c5 GR |
1715 | } |
1716 | ||
1717 | /** | |
1718 | * i40evf_free_all_tx_resources - Free Tx Resources for All Queues | |
1719 | * @adapter: board private structure | |
1720 | * | |
1721 | * Free all transmit software resources | |
1722 | **/ | |
1723 | static void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter) | |
1724 | { | |
1725 | int i; | |
1726 | ||
cc052927 | 1727 | for (i = 0; i < adapter->num_active_queues; i++) |
5eae00c5 GR |
1728 | if (adapter->tx_rings[i]->desc) |
1729 | i40evf_free_tx_resources(adapter->tx_rings[i]); | |
5eae00c5 GR |
1730 | } |
1731 | ||
1732 | /** | |
1733 | * i40evf_setup_all_tx_resources - allocate all queues Tx resources | |
1734 | * @adapter: board private structure | |
1735 | * | |
1736 | * If this function returns with an error, then it's possible one or | |
1737 | * more of the rings is populated (while the rest are not). It is the | |
1738 | * callers duty to clean those orphaned rings. | |
1739 | * | |
1740 | * Return 0 on success, negative on failure | |
1741 | **/ | |
1742 | static int i40evf_setup_all_tx_resources(struct i40evf_adapter *adapter) | |
1743 | { | |
1744 | int i, err = 0; | |
1745 | ||
cc052927 | 1746 | for (i = 0; i < adapter->num_active_queues; i++) { |
d732a184 | 1747 | adapter->tx_rings[i]->count = adapter->tx_desc_count; |
5eae00c5 GR |
1748 | err = i40evf_setup_tx_descriptors(adapter->tx_rings[i]); |
1749 | if (!err) | |
1750 | continue; | |
1751 | dev_err(&adapter->pdev->dev, | |
1752 | "%s: Allocation for Tx Queue %u failed\n", | |
1753 | __func__, i); | |
1754 | break; | |
1755 | } | |
1756 | ||
1757 | return err; | |
1758 | } | |
1759 | ||
1760 | /** | |
1761 | * i40evf_setup_all_rx_resources - allocate all queues Rx resources | |
1762 | * @adapter: board private structure | |
1763 | * | |
1764 | * If this function returns with an error, then it's possible one or | |
1765 | * more of the rings is populated (while the rest are not). It is the | |
1766 | * callers duty to clean those orphaned rings. | |
1767 | * | |
1768 | * Return 0 on success, negative on failure | |
1769 | **/ | |
1770 | static int i40evf_setup_all_rx_resources(struct i40evf_adapter *adapter) | |
1771 | { | |
1772 | int i, err = 0; | |
1773 | ||
cc052927 | 1774 | for (i = 0; i < adapter->num_active_queues; i++) { |
d732a184 | 1775 | adapter->rx_rings[i]->count = adapter->rx_desc_count; |
5eae00c5 GR |
1776 | err = i40evf_setup_rx_descriptors(adapter->rx_rings[i]); |
1777 | if (!err) | |
1778 | continue; | |
1779 | dev_err(&adapter->pdev->dev, | |
1780 | "%s: Allocation for Rx Queue %u failed\n", | |
1781 | __func__, i); | |
1782 | break; | |
1783 | } | |
1784 | return err; | |
1785 | } | |
1786 | ||
1787 | /** | |
1788 | * i40evf_free_all_rx_resources - Free Rx Resources for All Queues | |
1789 | * @adapter: board private structure | |
1790 | * | |
1791 | * Free all receive software resources | |
1792 | **/ | |
1793 | static void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter) | |
1794 | { | |
1795 | int i; | |
1796 | ||
cc052927 | 1797 | for (i = 0; i < adapter->num_active_queues; i++) |
5eae00c5 GR |
1798 | if (adapter->rx_rings[i]->desc) |
1799 | i40evf_free_rx_resources(adapter->rx_rings[i]); | |
1800 | } | |
1801 | ||
1802 | /** | |
1803 | * i40evf_open - Called when a network interface is made active | |
1804 | * @netdev: network interface device structure | |
1805 | * | |
1806 | * Returns 0 on success, negative value on failure | |
1807 | * | |
1808 | * The open entry point is called when a network interface is made | |
1809 | * active by the system (IFF_UP). At this point all resources needed | |
1810 | * for transmit and receive operations are allocated, the interrupt | |
1811 | * handler is registered with the OS, the watchdog timer is started, | |
1812 | * and the stack is notified that the interface is ready. | |
1813 | **/ | |
1814 | static int i40evf_open(struct net_device *netdev) | |
1815 | { | |
1816 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
1817 | int err; | |
1818 | ||
ef8693eb MW |
1819 | if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) { |
1820 | dev_err(&adapter->pdev->dev, "Unable to open device due to PF driver failure.\n"); | |
1821 | return -EIO; | |
1822 | } | |
5eae00c5 GR |
1823 | if (adapter->state != __I40EVF_DOWN) |
1824 | return -EBUSY; | |
1825 | ||
1826 | /* allocate transmit descriptors */ | |
1827 | err = i40evf_setup_all_tx_resources(adapter); | |
1828 | if (err) | |
1829 | goto err_setup_tx; | |
1830 | ||
1831 | /* allocate receive descriptors */ | |
1832 | err = i40evf_setup_all_rx_resources(adapter); | |
1833 | if (err) | |
1834 | goto err_setup_rx; | |
1835 | ||
1836 | /* clear any pending interrupts, may auto mask */ | |
1837 | err = i40evf_request_traffic_irqs(adapter, netdev->name); | |
1838 | if (err) | |
1839 | goto err_req_irq; | |
1840 | ||
1841 | i40evf_configure(adapter); | |
1842 | ||
1843 | err = i40evf_up_complete(adapter); | |
1844 | if (err) | |
1845 | goto err_req_irq; | |
1846 | ||
1847 | i40evf_irq_enable(adapter, true); | |
1848 | ||
1849 | return 0; | |
1850 | ||
1851 | err_req_irq: | |
1852 | i40evf_down(adapter); | |
1853 | i40evf_free_traffic_irqs(adapter); | |
1854 | err_setup_rx: | |
1855 | i40evf_free_all_rx_resources(adapter); | |
1856 | err_setup_tx: | |
1857 | i40evf_free_all_tx_resources(adapter); | |
1858 | ||
1859 | return err; | |
1860 | } | |
1861 | ||
1862 | /** | |
1863 | * i40evf_close - Disables a network interface | |
1864 | * @netdev: network interface device structure | |
1865 | * | |
1866 | * Returns 0, this is not allowed to fail | |
1867 | * | |
1868 | * The close entry point is called when an interface is de-activated | |
1869 | * by the OS. The hardware is still under the drivers control, but | |
1870 | * needs to be disabled. All IRQs except vector 0 (reserved for admin queue) | |
1871 | * are freed, along with all transmit and receive resources. | |
1872 | **/ | |
1873 | static int i40evf_close(struct net_device *netdev) | |
1874 | { | |
1875 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
1876 | ||
ef8693eb MW |
1877 | if (adapter->state <= __I40EVF_DOWN) |
1878 | return 0; | |
1879 | ||
ef8693eb | 1880 | |
5eae00c5 GR |
1881 | set_bit(__I40E_DOWN, &adapter->vsi.state); |
1882 | ||
1883 | i40evf_down(adapter); | |
ddf0b3a6 | 1884 | adapter->state = __I40EVF_DOWN; |
5eae00c5 GR |
1885 | i40evf_free_traffic_irqs(adapter); |
1886 | ||
1887 | i40evf_free_all_tx_resources(adapter); | |
1888 | i40evf_free_all_rx_resources(adapter); | |
1889 | ||
1890 | return 0; | |
1891 | } | |
1892 | ||
1893 | /** | |
1894 | * i40evf_get_stats - Get System Network Statistics | |
1895 | * @netdev: network interface device structure | |
1896 | * | |
1897 | * Returns the address of the device statistics structure. | |
1898 | * The statistics are actually updated from the timer callback. | |
1899 | **/ | |
1900 | static struct net_device_stats *i40evf_get_stats(struct net_device *netdev) | |
1901 | { | |
1902 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
1903 | ||
1904 | /* only return the current stats */ | |
1905 | return &adapter->net_stats; | |
1906 | } | |
1907 | ||
1908 | /** | |
1909 | * i40evf_reinit_locked - Software reinit | |
1910 | * @adapter: board private structure | |
1911 | * | |
1912 | * Reinititalizes the ring structures in response to a software configuration | |
1913 | * change. Roughly the same as close followed by open, but skips releasing | |
1914 | * and reallocating the interrupts. | |
1915 | **/ | |
1916 | void i40evf_reinit_locked(struct i40evf_adapter *adapter) | |
1917 | { | |
1918 | struct net_device *netdev = adapter->netdev; | |
1919 | int err; | |
1920 | ||
1921 | WARN_ON(in_interrupt()); | |
1922 | ||
5eae00c5 GR |
1923 | i40evf_down(adapter); |
1924 | ||
1925 | /* allocate transmit descriptors */ | |
1926 | err = i40evf_setup_all_tx_resources(adapter); | |
1927 | if (err) | |
1928 | goto err_reinit; | |
1929 | ||
1930 | /* allocate receive descriptors */ | |
1931 | err = i40evf_setup_all_rx_resources(adapter); | |
1932 | if (err) | |
1933 | goto err_reinit; | |
1934 | ||
1935 | i40evf_configure(adapter); | |
1936 | ||
1937 | err = i40evf_up_complete(adapter); | |
1938 | if (err) | |
1939 | goto err_reinit; | |
1940 | ||
1941 | i40evf_irq_enable(adapter, true); | |
1942 | return; | |
1943 | ||
1944 | err_reinit: | |
80e72893 | 1945 | dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n"); |
5eae00c5 GR |
1946 | i40evf_close(netdev); |
1947 | } | |
1948 | ||
1949 | /** | |
1950 | * i40evf_change_mtu - Change the Maximum Transfer Unit | |
1951 | * @netdev: network interface device structure | |
1952 | * @new_mtu: new value for maximum frame size | |
1953 | * | |
1954 | * Returns 0 on success, negative on failure | |
1955 | **/ | |
1956 | static int i40evf_change_mtu(struct net_device *netdev, int new_mtu) | |
1957 | { | |
1958 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
1959 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
1960 | ||
1961 | if ((new_mtu < 68) || (max_frame > I40E_MAX_RXBUFFER)) | |
1962 | return -EINVAL; | |
1963 | ||
1964 | /* must set new MTU before calling down or up */ | |
1965 | netdev->mtu = new_mtu; | |
1966 | i40evf_reinit_locked(adapter); | |
1967 | return 0; | |
1968 | } | |
1969 | ||
1970 | static const struct net_device_ops i40evf_netdev_ops = { | |
1971 | .ndo_open = i40evf_open, | |
1972 | .ndo_stop = i40evf_close, | |
1973 | .ndo_start_xmit = i40evf_xmit_frame, | |
1974 | .ndo_get_stats = i40evf_get_stats, | |
1975 | .ndo_set_rx_mode = i40evf_set_rx_mode, | |
1976 | .ndo_validate_addr = eth_validate_addr, | |
1977 | .ndo_set_mac_address = i40evf_set_mac, | |
1978 | .ndo_change_mtu = i40evf_change_mtu, | |
1979 | .ndo_tx_timeout = i40evf_tx_timeout, | |
1980 | .ndo_vlan_rx_add_vid = i40evf_vlan_rx_add_vid, | |
1981 | .ndo_vlan_rx_kill_vid = i40evf_vlan_rx_kill_vid, | |
1982 | }; | |
1983 | ||
1984 | /** | |
1985 | * i40evf_check_reset_complete - check that VF reset is complete | |
1986 | * @hw: pointer to hw struct | |
1987 | * | |
1988 | * Returns 0 if device is ready to use, or -EBUSY if it's in reset. | |
1989 | **/ | |
1990 | static int i40evf_check_reset_complete(struct i40e_hw *hw) | |
1991 | { | |
1992 | u32 rstat; | |
1993 | int i; | |
1994 | ||
1995 | for (i = 0; i < 100; i++) { | |
fd35886a AS |
1996 | rstat = rd32(hw, I40E_VFGEN_RSTAT) & |
1997 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; | |
1998 | if ((rstat == I40E_VFR_VFACTIVE) || | |
1999 | (rstat == I40E_VFR_COMPLETED)) | |
5eae00c5 | 2000 | return 0; |
f98a2006 | 2001 | usleep_range(10, 20); |
5eae00c5 GR |
2002 | } |
2003 | return -EBUSY; | |
2004 | } | |
2005 | ||
2006 | /** | |
2007 | * i40evf_init_task - worker thread to perform delayed initialization | |
2008 | * @work: pointer to work_struct containing our data | |
2009 | * | |
2010 | * This task completes the work that was begun in probe. Due to the nature | |
2011 | * of VF-PF communications, we may need to wait tens of milliseconds to get | |
dbedd44e | 2012 | * responses back from the PF. Rather than busy-wait in probe and bog down the |
5eae00c5 GR |
2013 | * whole system, we'll do it in a task so we can sleep. |
2014 | * This task only runs during driver init. Once we've established | |
2015 | * communications with the PF driver and set up our netdev, the watchdog | |
2016 | * takes over. | |
2017 | **/ | |
2018 | static void i40evf_init_task(struct work_struct *work) | |
2019 | { | |
2020 | struct i40evf_adapter *adapter = container_of(work, | |
2021 | struct i40evf_adapter, | |
2022 | init_task.work); | |
2023 | struct net_device *netdev = adapter->netdev; | |
2024 | struct i40evf_mac_filter *f; | |
2025 | struct i40e_hw *hw = &adapter->hw; | |
2026 | struct pci_dev *pdev = adapter->pdev; | |
2027 | int i, err, bufsz; | |
2028 | ||
2029 | switch (adapter->state) { | |
2030 | case __I40EVF_STARTUP: | |
2031 | /* driver loaded, probe complete */ | |
ef8693eb MW |
2032 | adapter->flags &= ~I40EVF_FLAG_PF_COMMS_FAILED; |
2033 | adapter->flags &= ~I40EVF_FLAG_RESET_PENDING; | |
5eae00c5 GR |
2034 | err = i40e_set_mac_type(hw); |
2035 | if (err) { | |
c2a137cb MW |
2036 | dev_err(&pdev->dev, "Failed to set MAC type (%d)\n", |
2037 | err); | |
5eae00c5 GR |
2038 | goto err; |
2039 | } | |
2040 | err = i40evf_check_reset_complete(hw); | |
2041 | if (err) { | |
0d9c7ea8 | 2042 | dev_info(&pdev->dev, "Device is still in reset (%d), retrying\n", |
75a64435 | 2043 | err); |
5eae00c5 GR |
2044 | goto err; |
2045 | } | |
2046 | hw->aq.num_arq_entries = I40EVF_AQ_LEN; | |
2047 | hw->aq.num_asq_entries = I40EVF_AQ_LEN; | |
2048 | hw->aq.arq_buf_size = I40EVF_MAX_AQ_BUF_SIZE; | |
2049 | hw->aq.asq_buf_size = I40EVF_MAX_AQ_BUF_SIZE; | |
2050 | ||
2051 | err = i40evf_init_adminq(hw); | |
2052 | if (err) { | |
c2a137cb MW |
2053 | dev_err(&pdev->dev, "Failed to init Admin Queue (%d)\n", |
2054 | err); | |
5eae00c5 GR |
2055 | goto err; |
2056 | } | |
2057 | err = i40evf_send_api_ver(adapter); | |
2058 | if (err) { | |
10bdd67b | 2059 | dev_err(&pdev->dev, "Unable to send to PF (%d)\n", err); |
5eae00c5 GR |
2060 | i40evf_shutdown_adminq(hw); |
2061 | goto err; | |
2062 | } | |
2063 | adapter->state = __I40EVF_INIT_VERSION_CHECK; | |
2064 | goto restart; | |
5eae00c5 | 2065 | case __I40EVF_INIT_VERSION_CHECK: |
10bdd67b | 2066 | if (!i40evf_asq_done(hw)) { |
80e72893 | 2067 | dev_err(&pdev->dev, "Admin queue command never completed\n"); |
906a6937 MW |
2068 | i40evf_shutdown_adminq(hw); |
2069 | adapter->state = __I40EVF_STARTUP; | |
5eae00c5 | 2070 | goto err; |
10bdd67b | 2071 | } |
5eae00c5 GR |
2072 | |
2073 | /* aq msg sent, awaiting reply */ | |
2074 | err = i40evf_verify_api_ver(adapter); | |
2075 | if (err) { | |
d4f82fd3 | 2076 | if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) |
56f9920a | 2077 | err = i40evf_send_api_ver(adapter); |
5eae00c5 GR |
2078 | goto err; |
2079 | } | |
2080 | err = i40evf_send_vf_config_msg(adapter); | |
2081 | if (err) { | |
3f2ab172 | 2082 | dev_err(&pdev->dev, "Unable to send config request (%d)\n", |
5eae00c5 GR |
2083 | err); |
2084 | goto err; | |
2085 | } | |
2086 | adapter->state = __I40EVF_INIT_GET_RESOURCES; | |
2087 | goto restart; | |
5eae00c5 GR |
2088 | case __I40EVF_INIT_GET_RESOURCES: |
2089 | /* aq msg sent, awaiting reply */ | |
2090 | if (!adapter->vf_res) { | |
2091 | bufsz = sizeof(struct i40e_virtchnl_vf_resource) + | |
2092 | (I40E_MAX_VF_VSI * | |
2093 | sizeof(struct i40e_virtchnl_vsi_resource)); | |
2094 | adapter->vf_res = kzalloc(bufsz, GFP_KERNEL); | |
c2a137cb | 2095 | if (!adapter->vf_res) |
5eae00c5 | 2096 | goto err; |
5eae00c5 GR |
2097 | } |
2098 | err = i40evf_get_vf_config(adapter); | |
906a6937 | 2099 | if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) { |
906a6937 MW |
2100 | err = i40evf_send_vf_config_msg(adapter); |
2101 | goto err; | |
2102 | } | |
5eae00c5 | 2103 | if (err) { |
c2a137cb MW |
2104 | dev_err(&pdev->dev, "Unable to get VF config (%d)\n", |
2105 | err); | |
5eae00c5 GR |
2106 | goto err_alloc; |
2107 | } | |
2108 | adapter->state = __I40EVF_INIT_SW; | |
2109 | break; | |
2110 | default: | |
2111 | goto err_alloc; | |
2112 | } | |
2113 | /* got VF config message back from PF, now we can parse it */ | |
2114 | for (i = 0; i < adapter->vf_res->num_vsis; i++) { | |
2115 | if (adapter->vf_res->vsi_res[i].vsi_type == I40E_VSI_SRIOV) | |
2116 | adapter->vsi_res = &adapter->vf_res->vsi_res[i]; | |
2117 | } | |
2118 | if (!adapter->vsi_res) { | |
c2a137cb | 2119 | dev_err(&pdev->dev, "No LAN VSI found\n"); |
5eae00c5 GR |
2120 | goto err_alloc; |
2121 | } | |
2122 | ||
2123 | adapter->flags |= I40EVF_FLAG_RX_CSUM_ENABLED; | |
2124 | ||
5eae00c5 GR |
2125 | netdev->netdev_ops = &i40evf_netdev_ops; |
2126 | i40evf_set_ethtool_ops(netdev); | |
2127 | netdev->watchdog_timeo = 5 * HZ; | |
dbbd8111 MW |
2128 | netdev->features |= NETIF_F_HIGHDMA | |
2129 | NETIF_F_SG | | |
5eae00c5 GR |
2130 | NETIF_F_IP_CSUM | |
2131 | NETIF_F_SCTP_CSUM | | |
2132 | NETIF_F_IPV6_CSUM | | |
2133 | NETIF_F_TSO | | |
2134 | NETIF_F_TSO6 | | |
3415e8ce | 2135 | NETIF_F_RXCSUM | |
5eae00c5 GR |
2136 | NETIF_F_GRO; |
2137 | ||
2138 | if (adapter->vf_res->vf_offload_flags | |
2139 | & I40E_VIRTCHNL_VF_OFFLOAD_VLAN) { | |
2140 | netdev->vlan_features = netdev->features; | |
2141 | netdev->features |= NETIF_F_HW_VLAN_CTAG_TX | | |
2142 | NETIF_F_HW_VLAN_CTAG_RX | | |
2143 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
2144 | } | |
2145 | ||
3415e8ce GR |
2146 | /* copy netdev features into list of user selectable features */ |
2147 | netdev->hw_features |= netdev->features; | |
2148 | netdev->hw_features &= ~NETIF_F_RXCSUM; | |
2149 | ||
5eae00c5 | 2150 | if (!is_valid_ether_addr(adapter->hw.mac.addr)) { |
b34f90e7 | 2151 | dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", |
c2a137cb | 2152 | adapter->hw.mac.addr); |
5eae00c5 GR |
2153 | random_ether_addr(adapter->hw.mac.addr); |
2154 | } | |
9a173901 GR |
2155 | ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr); |
2156 | ether_addr_copy(netdev->perm_addr, adapter->hw.mac.addr); | |
5eae00c5 | 2157 | |
5eae00c5 | 2158 | f = kzalloc(sizeof(*f), GFP_ATOMIC); |
348d4994 | 2159 | if (!f) |
5eae00c5 GR |
2160 | goto err_sw_init; |
2161 | ||
9a173901 | 2162 | ether_addr_copy(f->macaddr, adapter->hw.mac.addr); |
5eae00c5 GR |
2163 | f->add = true; |
2164 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_MAC_FILTER; | |
2165 | ||
2166 | list_add(&f->list, &adapter->mac_filter_list); | |
2167 | ||
2168 | init_timer(&adapter->watchdog_timer); | |
2169 | adapter->watchdog_timer.function = &i40evf_watchdog_timer; | |
2170 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
2171 | mod_timer(&adapter->watchdog_timer, jiffies + 1); | |
2172 | ||
cc052927 MW |
2173 | adapter->num_active_queues = min_t(int, |
2174 | adapter->vsi_res->num_queue_pairs, | |
2175 | (int)(num_online_cpus())); | |
d732a184 MW |
2176 | adapter->tx_desc_count = I40EVF_DEFAULT_TXD; |
2177 | adapter->rx_desc_count = I40EVF_DEFAULT_RXD; | |
5eae00c5 GR |
2178 | err = i40evf_init_interrupt_scheme(adapter); |
2179 | if (err) | |
2180 | goto err_sw_init; | |
2181 | i40evf_map_rings_to_vectors(adapter); | |
2182 | i40evf_configure_rss(adapter); | |
2183 | err = i40evf_request_misc_irq(adapter); | |
2184 | if (err) | |
2185 | goto err_sw_init; | |
2186 | ||
2187 | netif_carrier_off(netdev); | |
2188 | ||
5eae00c5 GR |
2189 | adapter->vsi.id = adapter->vsi_res->vsi_id; |
2190 | adapter->vsi.seid = adapter->vsi_res->vsi_id; /* dummy */ | |
2191 | adapter->vsi.back = adapter; | |
2192 | adapter->vsi.base_vector = 1; | |
2193 | adapter->vsi.work_limit = I40E_DEFAULT_IRQ_WORK; | |
ca99eb99 MW |
2194 | adapter->vsi.rx_itr_setting = (I40E_ITR_DYNAMIC | |
2195 | ITR_REG_TO_USEC(I40E_ITR_RX_DEF)); | |
2196 | adapter->vsi.tx_itr_setting = (I40E_ITR_DYNAMIC | | |
2197 | ITR_REG_TO_USEC(I40E_ITR_TX_DEF)); | |
5eae00c5 GR |
2198 | adapter->vsi.netdev = adapter->netdev; |
2199 | ||
ef8693eb MW |
2200 | if (!adapter->netdev_registered) { |
2201 | err = register_netdev(netdev); | |
2202 | if (err) | |
2203 | goto err_register; | |
2204 | } | |
5eae00c5 GR |
2205 | |
2206 | adapter->netdev_registered = true; | |
2207 | ||
2208 | netif_tx_stop_all_queues(netdev); | |
2209 | ||
b34f90e7 | 2210 | dev_info(&pdev->dev, "MAC address: %pM\n", adapter->hw.mac.addr); |
5eae00c5 GR |
2211 | if (netdev->features & NETIF_F_GRO) |
2212 | dev_info(&pdev->dev, "GRO is enabled\n"); | |
2213 | ||
2214 | dev_info(&pdev->dev, "%s\n", i40evf_driver_string); | |
2215 | adapter->state = __I40EVF_DOWN; | |
2216 | set_bit(__I40E_DOWN, &adapter->vsi.state); | |
2217 | i40evf_misc_irq_enable(adapter); | |
2218 | return; | |
2219 | restart: | |
2220 | schedule_delayed_work(&adapter->init_task, | |
2221 | msecs_to_jiffies(50)); | |
2222 | return; | |
2223 | ||
2224 | err_register: | |
2225 | i40evf_free_misc_irq(adapter); | |
2226 | err_sw_init: | |
2227 | i40evf_reset_interrupt_capability(adapter); | |
5eae00c5 GR |
2228 | err_alloc: |
2229 | kfree(adapter->vf_res); | |
2230 | adapter->vf_res = NULL; | |
2231 | err: | |
2232 | /* Things went into the weeds, so try again later */ | |
2233 | if (++adapter->aq_wait_count > I40EVF_AQ_MAX_ERR) { | |
80e72893 | 2234 | dev_err(&pdev->dev, "Failed to communicate with PF; giving up\n"); |
ef8693eb | 2235 | adapter->flags |= I40EVF_FLAG_PF_COMMS_FAILED; |
5eae00c5 GR |
2236 | return; /* do not reschedule */ |
2237 | } | |
2238 | schedule_delayed_work(&adapter->init_task, HZ * 3); | |
5eae00c5 GR |
2239 | } |
2240 | ||
2241 | /** | |
2242 | * i40evf_shutdown - Shutdown the device in preparation for a reboot | |
2243 | * @pdev: pci device structure | |
2244 | **/ | |
2245 | static void i40evf_shutdown(struct pci_dev *pdev) | |
2246 | { | |
2247 | struct net_device *netdev = pci_get_drvdata(pdev); | |
00293fdc | 2248 | struct i40evf_adapter *adapter = netdev_priv(netdev); |
5eae00c5 GR |
2249 | |
2250 | netif_device_detach(netdev); | |
2251 | ||
2252 | if (netif_running(netdev)) | |
2253 | i40evf_close(netdev); | |
2254 | ||
00293fdc MW |
2255 | /* Prevent the watchdog from running. */ |
2256 | adapter->state = __I40EVF_REMOVE; | |
2257 | adapter->aq_required = 0; | |
2258 | adapter->aq_pending = 0; | |
2259 | ||
5eae00c5 GR |
2260 | #ifdef CONFIG_PM |
2261 | pci_save_state(pdev); | |
2262 | ||
2263 | #endif | |
2264 | pci_disable_device(pdev); | |
2265 | } | |
2266 | ||
2267 | /** | |
2268 | * i40evf_probe - Device Initialization Routine | |
2269 | * @pdev: PCI device information struct | |
2270 | * @ent: entry in i40evf_pci_tbl | |
2271 | * | |
2272 | * Returns 0 on success, negative on failure | |
2273 | * | |
2274 | * i40evf_probe initializes an adapter identified by a pci_dev structure. | |
2275 | * The OS initialization, configuring of the adapter private structure, | |
2276 | * and a hardware reset occur. | |
2277 | **/ | |
2278 | static int i40evf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
2279 | { | |
2280 | struct net_device *netdev; | |
2281 | struct i40evf_adapter *adapter = NULL; | |
2282 | struct i40e_hw *hw = NULL; | |
dbbd8111 | 2283 | int err; |
5eae00c5 GR |
2284 | |
2285 | err = pci_enable_device(pdev); | |
2286 | if (err) | |
2287 | return err; | |
2288 | ||
6494294f | 2289 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
6494294f | 2290 | if (err) { |
e3e3bfdd JS |
2291 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
2292 | if (err) { | |
2293 | dev_err(&pdev->dev, | |
2294 | "DMA configuration failed: 0x%x\n", err); | |
2295 | goto err_dma; | |
2296 | } | |
5eae00c5 GR |
2297 | } |
2298 | ||
2299 | err = pci_request_regions(pdev, i40evf_driver_name); | |
2300 | if (err) { | |
2301 | dev_err(&pdev->dev, | |
2302 | "pci_request_regions failed 0x%x\n", err); | |
2303 | goto err_pci_reg; | |
2304 | } | |
2305 | ||
2306 | pci_enable_pcie_error_reporting(pdev); | |
2307 | ||
2308 | pci_set_master(pdev); | |
2309 | ||
2310 | netdev = alloc_etherdev_mq(sizeof(struct i40evf_adapter), | |
2311 | MAX_TX_QUEUES); | |
2312 | if (!netdev) { | |
2313 | err = -ENOMEM; | |
2314 | goto err_alloc_etherdev; | |
2315 | } | |
2316 | ||
2317 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2318 | ||
2319 | pci_set_drvdata(pdev, netdev); | |
2320 | adapter = netdev_priv(netdev); | |
5eae00c5 GR |
2321 | |
2322 | adapter->netdev = netdev; | |
2323 | adapter->pdev = pdev; | |
2324 | ||
2325 | hw = &adapter->hw; | |
2326 | hw->back = adapter; | |
2327 | ||
2328 | adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; | |
2329 | adapter->state = __I40EVF_STARTUP; | |
2330 | ||
2331 | /* Call save state here because it relies on the adapter struct. */ | |
2332 | pci_save_state(pdev); | |
2333 | ||
2334 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), | |
2335 | pci_resource_len(pdev, 0)); | |
2336 | if (!hw->hw_addr) { | |
2337 | err = -EIO; | |
2338 | goto err_ioremap; | |
2339 | } | |
2340 | hw->vendor_id = pdev->vendor; | |
2341 | hw->device_id = pdev->device; | |
2342 | pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id); | |
2343 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
2344 | hw->subsystem_device_id = pdev->subsystem_device; | |
2345 | hw->bus.device = PCI_SLOT(pdev->devfn); | |
2346 | hw->bus.func = PCI_FUNC(pdev->devfn); | |
2347 | ||
8bb1a540 SK |
2348 | INIT_LIST_HEAD(&adapter->mac_filter_list); |
2349 | INIT_LIST_HEAD(&adapter->vlan_filter_list); | |
2350 | ||
5eae00c5 GR |
2351 | INIT_WORK(&adapter->reset_task, i40evf_reset_task); |
2352 | INIT_WORK(&adapter->adminq_task, i40evf_adminq_task); | |
2353 | INIT_WORK(&adapter->watchdog_task, i40evf_watchdog_task); | |
2354 | INIT_DELAYED_WORK(&adapter->init_task, i40evf_init_task); | |
2355 | schedule_delayed_work(&adapter->init_task, 10); | |
2356 | ||
2357 | return 0; | |
2358 | ||
2359 | err_ioremap: | |
2360 | free_netdev(netdev); | |
2361 | err_alloc_etherdev: | |
2362 | pci_release_regions(pdev); | |
2363 | err_pci_reg: | |
2364 | err_dma: | |
2365 | pci_disable_device(pdev); | |
2366 | return err; | |
2367 | } | |
2368 | ||
2369 | #ifdef CONFIG_PM | |
2370 | /** | |
2371 | * i40evf_suspend - Power management suspend routine | |
2372 | * @pdev: PCI device information struct | |
2373 | * @state: unused | |
2374 | * | |
2375 | * Called when the system (VM) is entering sleep/suspend. | |
2376 | **/ | |
2377 | static int i40evf_suspend(struct pci_dev *pdev, pm_message_t state) | |
2378 | { | |
2379 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2380 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
2381 | int retval = 0; | |
2382 | ||
2383 | netif_device_detach(netdev); | |
2384 | ||
2385 | if (netif_running(netdev)) { | |
2386 | rtnl_lock(); | |
2387 | i40evf_down(adapter); | |
2388 | rtnl_unlock(); | |
2389 | } | |
2390 | i40evf_free_misc_irq(adapter); | |
2391 | i40evf_reset_interrupt_capability(adapter); | |
2392 | ||
2393 | retval = pci_save_state(pdev); | |
2394 | if (retval) | |
2395 | return retval; | |
2396 | ||
2397 | pci_disable_device(pdev); | |
2398 | ||
2399 | return 0; | |
2400 | } | |
2401 | ||
2402 | /** | |
dbedd44e | 2403 | * i40evf_resume - Power management resume routine |
5eae00c5 GR |
2404 | * @pdev: PCI device information struct |
2405 | * | |
2406 | * Called when the system (VM) is resumed from sleep/suspend. | |
2407 | **/ | |
2408 | static int i40evf_resume(struct pci_dev *pdev) | |
2409 | { | |
2410 | struct i40evf_adapter *adapter = pci_get_drvdata(pdev); | |
2411 | struct net_device *netdev = adapter->netdev; | |
2412 | u32 err; | |
2413 | ||
2414 | pci_set_power_state(pdev, PCI_D0); | |
2415 | pci_restore_state(pdev); | |
2416 | /* pci_restore_state clears dev->state_saved so call | |
2417 | * pci_save_state to restore it. | |
2418 | */ | |
2419 | pci_save_state(pdev); | |
2420 | ||
2421 | err = pci_enable_device_mem(pdev); | |
2422 | if (err) { | |
2423 | dev_err(&pdev->dev, "Cannot enable PCI device from suspend.\n"); | |
2424 | return err; | |
2425 | } | |
2426 | pci_set_master(pdev); | |
2427 | ||
2428 | rtnl_lock(); | |
2429 | err = i40evf_set_interrupt_capability(adapter); | |
2430 | if (err) { | |
2431 | dev_err(&pdev->dev, "Cannot enable MSI-X interrupts.\n"); | |
2432 | return err; | |
2433 | } | |
2434 | err = i40evf_request_misc_irq(adapter); | |
2435 | rtnl_unlock(); | |
2436 | if (err) { | |
2437 | dev_err(&pdev->dev, "Cannot get interrupt vector.\n"); | |
2438 | return err; | |
2439 | } | |
2440 | ||
2441 | schedule_work(&adapter->reset_task); | |
2442 | ||
2443 | netif_device_attach(netdev); | |
2444 | ||
2445 | return err; | |
2446 | } | |
2447 | ||
2448 | #endif /* CONFIG_PM */ | |
2449 | /** | |
2450 | * i40evf_remove - Device Removal Routine | |
2451 | * @pdev: PCI device information struct | |
2452 | * | |
2453 | * i40evf_remove is called by the PCI subsystem to alert the driver | |
2454 | * that it should release a PCI device. The could be caused by a | |
2455 | * Hot-Plug event, or because the driver is going to be removed from | |
2456 | * memory. | |
2457 | **/ | |
2458 | static void i40evf_remove(struct pci_dev *pdev) | |
2459 | { | |
2460 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2461 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
6ba36a24 | 2462 | struct i40evf_mac_filter *f, *ftmp; |
5eae00c5 GR |
2463 | struct i40e_hw *hw = &adapter->hw; |
2464 | ||
2465 | cancel_delayed_work_sync(&adapter->init_task); | |
ef8693eb | 2466 | cancel_work_sync(&adapter->reset_task); |
5eae00c5 GR |
2467 | |
2468 | if (adapter->netdev_registered) { | |
2469 | unregister_netdev(netdev); | |
2470 | adapter->netdev_registered = false; | |
2471 | } | |
53d0b3ae | 2472 | |
f4a71881 | 2473 | /* Shut down all the garbage mashers on the detention level */ |
5eae00c5 | 2474 | adapter->state = __I40EVF_REMOVE; |
f4a71881 MW |
2475 | adapter->aq_required = 0; |
2476 | adapter->aq_pending = 0; | |
2477 | i40evf_request_reset(adapter); | |
2478 | msleep(20); | |
2479 | /* If the FW isn't responding, kick it once, but only once. */ | |
2480 | if (!i40evf_asq_done(hw)) { | |
2481 | i40evf_request_reset(adapter); | |
2482 | msleep(20); | |
2483 | } | |
5eae00c5 | 2484 | |
dbb01c8a | 2485 | if (adapter->msix_entries) { |
5eae00c5 | 2486 | i40evf_misc_irq_disable(adapter); |
5eae00c5 | 2487 | i40evf_free_misc_irq(adapter); |
5eae00c5 | 2488 | i40evf_reset_interrupt_capability(adapter); |
d31944d6 | 2489 | i40evf_free_q_vectors(adapter); |
5eae00c5 GR |
2490 | } |
2491 | ||
e5d17c3e MW |
2492 | if (adapter->watchdog_timer.function) |
2493 | del_timer_sync(&adapter->watchdog_timer); | |
2494 | ||
dbb01c8a MW |
2495 | flush_scheduled_work(); |
2496 | ||
5eae00c5 GR |
2497 | if (hw->aq.asq.count) |
2498 | i40evf_shutdown_adminq(hw); | |
2499 | ||
2500 | iounmap(hw->hw_addr); | |
2501 | pci_release_regions(pdev); | |
2502 | ||
2503 | i40evf_free_queues(adapter); | |
2504 | kfree(adapter->vf_res); | |
6ba36a24 MW |
2505 | /* If we got removed before an up/down sequence, we've got a filter |
2506 | * hanging out there that we need to get rid of. | |
2507 | */ | |
2508 | list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) { | |
2509 | list_del(&f->list); | |
2510 | kfree(f); | |
2511 | } | |
37dfdf37 MW |
2512 | list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) { |
2513 | list_del(&f->list); | |
2514 | kfree(f); | |
2515 | } | |
5eae00c5 GR |
2516 | |
2517 | free_netdev(netdev); | |
2518 | ||
2519 | pci_disable_pcie_error_reporting(pdev); | |
2520 | ||
2521 | pci_disable_device(pdev); | |
2522 | } | |
2523 | ||
2524 | static struct pci_driver i40evf_driver = { | |
2525 | .name = i40evf_driver_name, | |
2526 | .id_table = i40evf_pci_tbl, | |
2527 | .probe = i40evf_probe, | |
2528 | .remove = i40evf_remove, | |
2529 | #ifdef CONFIG_PM | |
2530 | .suspend = i40evf_suspend, | |
2531 | .resume = i40evf_resume, | |
2532 | #endif | |
2533 | .shutdown = i40evf_shutdown, | |
2534 | }; | |
2535 | ||
2536 | /** | |
2537 | * i40e_init_module - Driver Registration Routine | |
2538 | * | |
2539 | * i40e_init_module is the first routine called when the driver is | |
2540 | * loaded. All it does is register with the PCI subsystem. | |
2541 | **/ | |
2542 | static int __init i40evf_init_module(void) | |
2543 | { | |
2544 | int ret; | |
75a64435 | 2545 | |
5eae00c5 | 2546 | pr_info("i40evf: %s - version %s\n", i40evf_driver_string, |
75a64435 | 2547 | i40evf_driver_version); |
5eae00c5 GR |
2548 | |
2549 | pr_info("%s\n", i40evf_copyright); | |
2550 | ||
2551 | ret = pci_register_driver(&i40evf_driver); | |
2552 | return ret; | |
2553 | } | |
2554 | ||
2555 | module_init(i40evf_init_module); | |
2556 | ||
2557 | /** | |
2558 | * i40e_exit_module - Driver Exit Cleanup Routine | |
2559 | * | |
2560 | * i40e_exit_module is called just before the driver is removed | |
2561 | * from memory. | |
2562 | **/ | |
2563 | static void __exit i40evf_exit_module(void) | |
2564 | { | |
2565 | pci_unregister_driver(&i40evf_driver); | |
2566 | } | |
2567 | ||
2568 | module_exit(i40evf_exit_module); | |
2569 | ||
2570 | /* i40evf_main.c */ |