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17367270 GR |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
434c5e39 | 4 | Copyright(c) 1999 - 2013 Intel Corporation. |
17367270 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 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
25 | ||
26 | *******************************************************************************/ | |
27 | ||
17367270 GR |
28 | #include <linux/types.h> |
29 | #include <linux/module.h> | |
30 | #include <linux/pci.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/vmalloc.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/ip.h> | |
36 | #include <linux/tcp.h> | |
37 | #include <linux/ipv6.h> | |
f646968f | 38 | #ifdef NETIF_F_HW_VLAN_CTAG_TX |
17367270 GR |
39 | #include <linux/if_vlan.h> |
40 | #endif | |
41 | ||
42 | #include "ixgbe.h" | |
c6bda30a | 43 | #include "ixgbe_type.h" |
17367270 GR |
44 | #include "ixgbe_sriov.h" |
45 | ||
c6bda30a | 46 | #ifdef CONFIG_PCI_IOV |
66dcfd75 | 47 | static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter) |
c6bda30a GR |
48 | { |
49 | struct ixgbe_hw *hw = &adapter->hw; | |
c6bda30a GR |
50 | int num_vf_macvlans, i; |
51 | struct vf_macvlans *mv_list; | |
c6bda30a | 52 | |
73079ea0 | 53 | adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; |
c6bda30a GR |
54 | e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs); |
55 | ||
73079ea0 AD |
56 | /* Enable VMDq flag so device will be set in VM mode */ |
57 | adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED; | |
58 | if (!adapter->ring_feature[RING_F_VMDQ].limit) | |
59 | adapter->ring_feature[RING_F_VMDQ].limit = 1; | |
60 | adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs; | |
61 | ||
c6bda30a GR |
62 | num_vf_macvlans = hw->mac.num_rar_entries - |
63 | (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); | |
64 | ||
65 | adapter->mv_list = mv_list = kcalloc(num_vf_macvlans, | |
66 | sizeof(struct vf_macvlans), | |
67 | GFP_KERNEL); | |
68 | if (mv_list) { | |
69 | /* Initialize list of VF macvlans */ | |
70 | INIT_LIST_HEAD(&adapter->vf_mvs.l); | |
71 | for (i = 0; i < num_vf_macvlans; i++) { | |
72 | mv_list->vf = -1; | |
73 | mv_list->free = true; | |
74 | mv_list->rar_entry = hw->mac.num_rar_entries - | |
75 | (i + adapter->num_vfs + 1); | |
76 | list_add(&mv_list->l, &adapter->vf_mvs.l); | |
77 | mv_list++; | |
78 | } | |
79 | } | |
80 | ||
815cccbf JF |
81 | /* Initialize default switching mode VEB */ |
82 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); | |
9b735984 | 83 | adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB; |
815cccbf | 84 | |
c6bda30a GR |
85 | /* If call to enable VFs succeeded then allocate memory |
86 | * for per VF control structures. | |
87 | */ | |
88 | adapter->vfinfo = | |
89 | kcalloc(adapter->num_vfs, | |
90 | sizeof(struct vf_data_storage), GFP_KERNEL); | |
91 | if (adapter->vfinfo) { | |
73079ea0 AD |
92 | /* limit trafffic classes based on VFs enabled */ |
93 | if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && | |
94 | (adapter->num_vfs < 16)) { | |
95 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
96 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
97 | } else if (adapter->num_vfs < 32) { | |
98 | adapter->dcb_cfg.num_tcs.pg_tcs = 4; | |
99 | adapter->dcb_cfg.num_tcs.pfc_tcs = 4; | |
100 | } else { | |
101 | adapter->dcb_cfg.num_tcs.pg_tcs = 1; | |
102 | adapter->dcb_cfg.num_tcs.pfc_tcs = 1; | |
103 | } | |
104 | ||
105 | /* We do not support RSS w/ SR-IOV */ | |
106 | adapter->ring_feature[RING_F_RSS].limit = 1; | |
c6bda30a GR |
107 | |
108 | /* Disable RSC when in SR-IOV mode */ | |
109 | adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | | |
110 | IXGBE_FLAG2_RSC_ENABLED); | |
73079ea0 | 111 | |
73079ea0 | 112 | /* enable spoof checking for all VFs */ |
de4c7f65 GR |
113 | for (i = 0; i < adapter->num_vfs; i++) |
114 | adapter->vfinfo[i].spoofchk_enabled = true; | |
66dcfd75 GR |
115 | return 0; |
116 | } | |
117 | ||
118 | return -ENOMEM; | |
119 | } | |
120 | ||
121 | /* Note this function is called when the user wants to enable SR-IOV | |
122 | * VFs using the now deprecated module parameter | |
123 | */ | |
124 | void ixgbe_enable_sriov(struct ixgbe_adapter *adapter) | |
125 | { | |
126 | int pre_existing_vfs = 0; | |
127 | ||
128 | pre_existing_vfs = pci_num_vf(adapter->pdev); | |
129 | if (!pre_existing_vfs && !adapter->num_vfs) | |
c6bda30a | 130 | return; |
66dcfd75 GR |
131 | |
132 | if (!pre_existing_vfs) | |
133 | dev_warn(&adapter->pdev->dev, | |
134 | "Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n"); | |
135 | ||
136 | /* If there are pre-existing VFs then we have to force | |
137 | * use of that many - over ride any module parameter value. | |
138 | * This may result from the user unloading the PF driver | |
139 | * while VFs were assigned to guest VMs or because the VFs | |
140 | * have been created via the new PCI SR-IOV sysfs interface. | |
141 | */ | |
142 | if (pre_existing_vfs) { | |
143 | adapter->num_vfs = pre_existing_vfs; | |
144 | dev_warn(&adapter->pdev->dev, | |
145 | "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); | |
146 | } else { | |
147 | int err; | |
148 | /* | |
149 | * The 82599 supports up to 64 VFs per physical function | |
150 | * but this implementation limits allocation to 63 so that | |
151 | * basic networking resources are still available to the | |
152 | * physical function. If the user requests greater thn | |
153 | * 63 VFs then it is an error - reset to default of zero. | |
154 | */ | |
155 | adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63); | |
156 | ||
157 | err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); | |
158 | if (err) { | |
159 | e_err(probe, "Failed to enable PCI sriov: %d\n", err); | |
160 | adapter->num_vfs = 0; | |
161 | return; | |
162 | } | |
c6bda30a GR |
163 | } |
164 | ||
66dcfd75 GR |
165 | if (!__ixgbe_enable_sriov(adapter)) |
166 | return; | |
167 | ||
168 | /* If we have gotten to this point then there is no memory available | |
169 | * to manage the VF devices - print message and bail. | |
170 | */ | |
c6bda30a GR |
171 | e_err(probe, "Unable to allocate memory for VF Data Storage - " |
172 | "SRIOV disabled\n"); | |
99d74487 | 173 | ixgbe_disable_sriov(adapter); |
c6bda30a | 174 | } |
c6bda30a | 175 | |
9297127b AD |
176 | static bool ixgbe_vfs_are_assigned(struct ixgbe_adapter *adapter) |
177 | { | |
178 | struct pci_dev *pdev = adapter->pdev; | |
179 | struct pci_dev *vfdev; | |
180 | int dev_id; | |
181 | ||
182 | switch (adapter->hw.mac.type) { | |
183 | case ixgbe_mac_82599EB: | |
184 | dev_id = IXGBE_DEV_ID_82599_VF; | |
185 | break; | |
186 | case ixgbe_mac_X540: | |
187 | dev_id = IXGBE_DEV_ID_X540_VF; | |
188 | break; | |
189 | default: | |
190 | return false; | |
191 | } | |
192 | ||
193 | /* loop through all the VFs to see if we own any that are assigned */ | |
194 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL); | |
195 | while (vfdev) { | |
196 | /* if we don't own it we don't care */ | |
197 | if (vfdev->is_virtfn && vfdev->physfn == pdev) { | |
198 | /* if it is assigned we cannot release it */ | |
199 | if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) | |
200 | return true; | |
201 | } | |
202 | ||
203 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev); | |
204 | } | |
205 | ||
206 | return false; | |
207 | } | |
208 | ||
209 | #endif /* #ifdef CONFIG_PCI_IOV */ | |
da36b647 | 210 | int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) |
c6bda30a GR |
211 | { |
212 | struct ixgbe_hw *hw = &adapter->hw; | |
c6bda30a GR |
213 | u32 gpie; |
214 | u32 vmdctl; | |
da36b647 | 215 | int rss; |
c6bda30a | 216 | |
d773d131 AD |
217 | /* set num VFs to 0 to prevent access to vfinfo */ |
218 | adapter->num_vfs = 0; | |
219 | ||
220 | /* free VF control structures */ | |
221 | kfree(adapter->vfinfo); | |
222 | adapter->vfinfo = NULL; | |
223 | ||
224 | /* free macvlan list */ | |
225 | kfree(adapter->mv_list); | |
226 | adapter->mv_list = NULL; | |
227 | ||
99d74487 AD |
228 | /* if SR-IOV is already disabled then there is nothing to do */ |
229 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
da36b647 | 230 | return 0; |
99d74487 | 231 | |
c6bda30a | 232 | #ifdef CONFIG_PCI_IOV |
9297127b AD |
233 | /* |
234 | * If our VFs are assigned we cannot shut down SR-IOV | |
235 | * without causing issues, so just leave the hardware | |
236 | * available but disabled | |
237 | */ | |
238 | if (ixgbe_vfs_are_assigned(adapter)) { | |
239 | e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); | |
da36b647 | 240 | return -EPERM; |
d47e12d6 | 241 | } |
c6bda30a GR |
242 | /* disable iov and allow time for transactions to clear */ |
243 | pci_disable_sriov(adapter->pdev); | |
244 | #endif | |
245 | ||
246 | /* turn off device IOV mode */ | |
73079ea0 | 247 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); |
c6bda30a GR |
248 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); |
249 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
250 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
251 | ||
252 | /* set default pool back to 0 */ | |
253 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
254 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
255 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
256 | IXGBE_WRITE_FLUSH(hw); | |
257 | ||
1d9c0bfd AD |
258 | /* Disable VMDq flag so device will be set in VM mode */ |
259 | if (adapter->ring_feature[RING_F_VMDQ].limit == 1) | |
260 | adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; | |
261 | adapter->ring_feature[RING_F_VMDQ].offset = 0; | |
262 | ||
da36b647 GR |
263 | rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); |
264 | adapter->ring_feature[RING_F_RSS].limit = rss; | |
265 | ||
c6bda30a GR |
266 | /* take a breather then clean up driver data */ |
267 | msleep(100); | |
268 | ||
c6bda30a | 269 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
da36b647 GR |
270 | return 0; |
271 | } | |
272 | ||
273 | static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) | |
274 | { | |
275 | #ifdef CONFIG_PCI_IOV | |
276 | struct ixgbe_adapter *adapter = pci_get_drvdata(dev); | |
277 | int err = 0; | |
278 | int i; | |
279 | int pre_existing_vfs = pci_num_vf(dev); | |
280 | ||
281 | if (pre_existing_vfs && pre_existing_vfs != num_vfs) | |
282 | err = ixgbe_disable_sriov(adapter); | |
283 | else if (pre_existing_vfs && pre_existing_vfs == num_vfs) | |
284 | goto out; | |
285 | ||
286 | if (err) | |
287 | goto err_out; | |
288 | ||
289 | /* While the SR-IOV capability structure reports total VFs to be | |
290 | * 64 we limit the actual number that can be allocated to 63 so | |
291 | * that some transmit/receive resources can be reserved to the | |
292 | * PF. The PCI bus driver already checks for other values out of | |
293 | * range. | |
294 | */ | |
295 | if (num_vfs > 63) { | |
296 | err = -EPERM; | |
297 | goto err_out; | |
298 | } | |
299 | ||
300 | adapter->num_vfs = num_vfs; | |
301 | ||
302 | err = __ixgbe_enable_sriov(adapter); | |
303 | if (err) | |
304 | goto err_out; | |
305 | ||
306 | for (i = 0; i < adapter->num_vfs; i++) | |
307 | ixgbe_vf_configuration(dev, (i | 0x10000000)); | |
308 | ||
309 | err = pci_enable_sriov(dev, num_vfs); | |
310 | if (err) { | |
311 | e_dev_warn("Failed to enable PCI sriov: %d\n", err); | |
312 | goto err_out; | |
313 | } | |
314 | ixgbe_sriov_reinit(adapter); | |
315 | ||
316 | out: | |
317 | return num_vfs; | |
318 | ||
319 | err_out: | |
320 | return err; | |
321 | #endif | |
322 | return 0; | |
323 | } | |
324 | ||
325 | static int ixgbe_pci_sriov_disable(struct pci_dev *dev) | |
326 | { | |
327 | struct ixgbe_adapter *adapter = pci_get_drvdata(dev); | |
328 | int err; | |
329 | u32 current_flags = adapter->flags; | |
330 | ||
331 | err = ixgbe_disable_sriov(adapter); | |
332 | ||
333 | /* Only reinit if no error and state changed */ | |
334 | if (!err && current_flags != adapter->flags) { | |
335 | /* ixgbe_disable_sriov() doesn't clear VMDQ flag */ | |
336 | adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; | |
337 | #ifdef CONFIG_PCI_IOV | |
338 | ixgbe_sriov_reinit(adapter); | |
339 | #endif | |
340 | } | |
341 | ||
342 | return err; | |
343 | } | |
344 | ||
345 | int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) | |
346 | { | |
347 | if (num_vfs == 0) | |
348 | return ixgbe_pci_sriov_disable(dev); | |
349 | else | |
350 | return ixgbe_pci_sriov_enable(dev, num_vfs); | |
c6bda30a GR |
351 | } |
352 | ||
5d5b7c39 | 353 | static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, |
58a02bee | 354 | u32 *msgbuf, u32 vf) |
17367270 | 355 | { |
58a02bee AD |
356 | int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) |
357 | >> IXGBE_VT_MSGINFO_SHIFT; | |
358 | u16 *hash_list = (u16 *)&msgbuf[1]; | |
17367270 | 359 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; |
8a07a22d | 360 | struct ixgbe_hw *hw = &adapter->hw; |
17367270 | 361 | int i; |
8a07a22d GR |
362 | u32 vector_bit; |
363 | u32 vector_reg; | |
364 | u32 mta_reg; | |
17367270 GR |
365 | |
366 | /* only so many hash values supported */ | |
367 | entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); | |
368 | ||
369 | /* | |
370 | * salt away the number of multi cast addresses assigned | |
371 | * to this VF for later use to restore when the PF multi cast | |
372 | * list changes | |
373 | */ | |
374 | vfinfo->num_vf_mc_hashes = entries; | |
375 | ||
376 | /* | |
377 | * VFs are limited to using the MTA hash table for their multicast | |
378 | * addresses | |
379 | */ | |
380 | for (i = 0; i < entries; i++) { | |
e81a1ba8 | 381 | vfinfo->vf_mc_hashes[i] = hash_list[i]; |
17367270 GR |
382 | } |
383 | ||
8a07a22d GR |
384 | for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { |
385 | vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; | |
386 | vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; | |
387 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
388 | mta_reg |= (1 << vector_bit); | |
389 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
390 | } | |
17367270 GR |
391 | |
392 | return 0; | |
393 | } | |
394 | ||
a1cbb15c GR |
395 | static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) |
396 | { | |
397 | struct ixgbe_hw *hw = &adapter->hw; | |
398 | struct list_head *pos; | |
399 | struct vf_macvlans *entry; | |
400 | ||
401 | list_for_each(pos, &adapter->vf_mvs.l) { | |
402 | entry = list_entry(pos, struct vf_macvlans, l); | |
23677ce3 | 403 | if (!entry->free) |
a1cbb15c GR |
404 | hw->mac.ops.set_rar(hw, entry->rar_entry, |
405 | entry->vf_macvlan, | |
406 | entry->vf, IXGBE_RAH_AV); | |
407 | } | |
408 | } | |
409 | ||
17367270 GR |
410 | void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) |
411 | { | |
412 | struct ixgbe_hw *hw = &adapter->hw; | |
413 | struct vf_data_storage *vfinfo; | |
414 | int i, j; | |
415 | u32 vector_bit; | |
416 | u32 vector_reg; | |
417 | u32 mta_reg; | |
418 | ||
419 | for (i = 0; i < adapter->num_vfs; i++) { | |
420 | vfinfo = &adapter->vfinfo[i]; | |
421 | for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { | |
422 | hw->addr_ctrl.mta_in_use++; | |
423 | vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; | |
424 | vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; | |
425 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
426 | mta_reg |= (1 << vector_bit); | |
427 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
428 | } | |
429 | } | |
a1cbb15c GR |
430 | |
431 | /* Restore any VF macvlans */ | |
432 | ixgbe_restore_vf_macvlans(adapter); | |
17367270 GR |
433 | } |
434 | ||
5d5b7c39 ET |
435 | static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, |
436 | u32 vf) | |
17367270 | 437 | { |
b35d4d42 AD |
438 | /* VLAN 0 is a special case, don't allow it to be removed */ |
439 | if (!vid && !add) | |
440 | return 0; | |
441 | ||
17367270 GR |
442 | return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); |
443 | } | |
444 | ||
872844dd | 445 | static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) |
e9f98072 GR |
446 | { |
447 | struct ixgbe_hw *hw = &adapter->hw; | |
872844dd | 448 | int max_frame = msgbuf[1]; |
e9f98072 | 449 | u32 max_frs; |
e9f98072 | 450 | |
872844dd AD |
451 | /* |
452 | * For 82599EB we have to keep all PFs and VFs operating with | |
453 | * the same max_frame value in order to avoid sending an oversize | |
454 | * frame to a VF. In order to guarantee this is handled correctly | |
455 | * for all cases we have several special exceptions to take into | |
456 | * account before we can enable the VF for receive | |
457 | */ | |
458 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
459 | struct net_device *dev = adapter->netdev; | |
460 | int pf_max_frame = dev->mtu + ETH_HLEN; | |
461 | u32 reg_offset, vf_shift, vfre; | |
462 | s32 err = 0; | |
463 | ||
464 | #ifdef CONFIG_FCOE | |
465 | if (dev->features & NETIF_F_FCOE_MTU) | |
466 | pf_max_frame = max_t(int, pf_max_frame, | |
467 | IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
468 | ||
469 | #endif /* CONFIG_FCOE */ | |
bffb3bc9 AD |
470 | switch (adapter->vfinfo[vf].vf_api) { |
471 | case ixgbe_mbox_api_11: | |
472 | /* | |
473 | * Version 1.1 supports jumbo frames on VFs if PF has | |
474 | * jumbo frames enabled which means legacy VFs are | |
475 | * disabled | |
476 | */ | |
477 | if (pf_max_frame > ETH_FRAME_LEN) | |
478 | break; | |
479 | default: | |
480 | /* | |
481 | * If the PF or VF are running w/ jumbo frames enabled | |
482 | * we need to shut down the VF Rx path as we cannot | |
483 | * support jumbo frames on legacy VFs | |
484 | */ | |
485 | if ((pf_max_frame > ETH_FRAME_LEN) || | |
486 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) | |
487 | err = -EINVAL; | |
488 | break; | |
489 | } | |
872844dd AD |
490 | |
491 | /* determine VF receive enable location */ | |
492 | vf_shift = vf % 32; | |
493 | reg_offset = vf / 32; | |
494 | ||
495 | /* enable or disable receive depending on error */ | |
496 | vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); | |
497 | if (err) | |
498 | vfre &= ~(1 << vf_shift); | |
499 | else | |
500 | vfre |= 1 << vf_shift; | |
501 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); | |
502 | ||
503 | if (err) { | |
504 | e_err(drv, "VF max_frame %d out of range\n", max_frame); | |
505 | return err; | |
506 | } | |
507 | } | |
e9f98072 GR |
508 | |
509 | /* MTU < 68 is an error and causes problems on some kernels */ | |
872844dd AD |
510 | if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { |
511 | e_err(drv, "VF max_frame %d out of range\n", max_frame); | |
512 | return -EINVAL; | |
e9f98072 GR |
513 | } |
514 | ||
872844dd AD |
515 | /* pull current max frame size from hardware */ |
516 | max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); | |
517 | max_frs &= IXGBE_MHADD_MFS_MASK; | |
518 | max_frs >>= IXGBE_MHADD_MFS_SHIFT; | |
519 | ||
520 | if (max_frs < max_frame) { | |
521 | max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; | |
e9f98072 GR |
522 | IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); |
523 | } | |
524 | ||
872844dd AD |
525 | e_info(hw, "VF requests change max MTU to %d\n", max_frame); |
526 | ||
527 | return 0; | |
e9f98072 GR |
528 | } |
529 | ||
5d5b7c39 | 530 | static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) |
17367270 GR |
531 | { |
532 | u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); | |
f0412776 | 533 | vmolr |= (IXGBE_VMOLR_ROMPE | |
17367270 | 534 | IXGBE_VMOLR_BAM); |
f0412776 GR |
535 | if (aupe) |
536 | vmolr |= IXGBE_VMOLR_AUPE; | |
537 | else | |
538 | vmolr &= ~IXGBE_VMOLR_AUPE; | |
17367270 GR |
539 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); |
540 | } | |
541 | ||
107d3018 AD |
542 | static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) |
543 | { | |
544 | struct ixgbe_hw *hw = &adapter->hw; | |
545 | ||
546 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); | |
547 | } | |
5d5b7c39 | 548 | static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
549 | { |
550 | struct ixgbe_hw *hw = &adapter->hw; | |
107d3018 | 551 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; |
2850062a | 552 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
107d3018 AD |
553 | u8 num_tcs = netdev_get_num_tc(adapter->netdev); |
554 | ||
555 | /* add PF assigned VLAN or VLAN 0 */ | |
556 | ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); | |
17367270 GR |
557 | |
558 | /* reset offloads to defaults */ | |
107d3018 AD |
559 | ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); |
560 | ||
561 | /* set outgoing tags for VFs */ | |
562 | if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { | |
563 | ixgbe_clear_vmvir(adapter, vf); | |
7f01648a | 564 | } else { |
107d3018 AD |
565 | if (vfinfo->pf_qos || !num_tcs) |
566 | ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, | |
567 | vfinfo->pf_qos, vf); | |
568 | else | |
569 | ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, | |
570 | adapter->default_up, vf); | |
571 | ||
572 | if (vfinfo->spoofchk_enabled) | |
573 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
7f01648a | 574 | } |
17367270 GR |
575 | |
576 | /* reset multicast table array for vf */ | |
577 | adapter->vfinfo[vf].num_vf_mc_hashes = 0; | |
578 | ||
579 | /* Flush and reset the mta with the new values */ | |
580 | ixgbe_set_rx_mode(adapter->netdev); | |
581 | ||
2850062a | 582 | hw->mac.ops.clear_rar(hw, rar_entry); |
374c65d6 AD |
583 | |
584 | /* reset VF api back to unknown */ | |
585 | adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; | |
17367270 GR |
586 | } |
587 | ||
5d5b7c39 ET |
588 | static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, |
589 | int vf, unsigned char *mac_addr) | |
17367270 GR |
590 | { |
591 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 592 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
17367270 GR |
593 | |
594 | memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6); | |
2850062a | 595 | hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); |
17367270 GR |
596 | |
597 | return 0; | |
598 | } | |
599 | ||
a1cbb15c GR |
600 | static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, |
601 | int vf, int index, unsigned char *mac_addr) | |
602 | { | |
603 | struct ixgbe_hw *hw = &adapter->hw; | |
604 | struct list_head *pos; | |
605 | struct vf_macvlans *entry; | |
606 | ||
607 | if (index <= 1) { | |
608 | list_for_each(pos, &adapter->vf_mvs.l) { | |
609 | entry = list_entry(pos, struct vf_macvlans, l); | |
610 | if (entry->vf == vf) { | |
611 | entry->vf = -1; | |
612 | entry->free = true; | |
613 | entry->is_macvlan = false; | |
614 | hw->mac.ops.clear_rar(hw, entry->rar_entry); | |
615 | } | |
616 | } | |
617 | } | |
618 | ||
619 | /* | |
620 | * If index was zero then we were asked to clear the uc list | |
621 | * for the VF. We're done. | |
622 | */ | |
623 | if (!index) | |
624 | return 0; | |
625 | ||
626 | entry = NULL; | |
627 | ||
628 | list_for_each(pos, &adapter->vf_mvs.l) { | |
629 | entry = list_entry(pos, struct vf_macvlans, l); | |
630 | if (entry->free) | |
631 | break; | |
632 | } | |
633 | ||
634 | /* | |
635 | * If we traversed the entire list and didn't find a free entry | |
636 | * then we're out of space on the RAR table. Also entry may | |
637 | * be NULL because the original memory allocation for the list | |
638 | * failed, which is not fatal but does mean we can't support | |
639 | * VF requests for MACVLAN because we couldn't allocate | |
640 | * memory for the list management required. | |
641 | */ | |
642 | if (!entry || !entry->free) | |
643 | return -ENOSPC; | |
644 | ||
645 | entry->free = false; | |
646 | entry->is_macvlan = true; | |
647 | entry->vf = vf; | |
648 | memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); | |
649 | ||
650 | hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
17367270 GR |
655 | int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) |
656 | { | |
657 | unsigned char vf_mac_addr[6]; | |
c60fbb00 | 658 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
17367270 GR |
659 | unsigned int vfn = (event_mask & 0x3f); |
660 | ||
661 | bool enable = ((event_mask & 0x10000000U) != 0); | |
662 | ||
663 | if (enable) { | |
35055928 | 664 | eth_zero_addr(vf_mac_addr); |
17367270 GR |
665 | memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); |
666 | } | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
58a02bee | 671 | static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
672 | { |
673 | struct ixgbe_hw *hw = &adapter->hw; | |
58a02bee AD |
674 | unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; |
675 | u32 reg, msgbuf[4]; | |
17367270 | 676 | u32 reg_offset, vf_shift; |
58a02bee AD |
677 | u8 *addr = (u8 *)(&msgbuf[1]); |
678 | ||
679 | e_info(probe, "VF Reset msg received from vf %d\n", vf); | |
680 | ||
681 | /* reset the filters for the device */ | |
682 | ixgbe_vf_reset_event(adapter, vf); | |
683 | ||
684 | /* set vf mac address */ | |
35055928 GR |
685 | if (!is_zero_ether_addr(vf_mac)) |
686 | ixgbe_set_vf_mac(adapter, vf, vf_mac); | |
17367270 GR |
687 | |
688 | vf_shift = vf % 32; | |
689 | reg_offset = vf / 32; | |
690 | ||
58a02bee | 691 | /* enable transmit for vf */ |
17367270 | 692 | reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); |
872844dd | 693 | reg |= 1 << vf_shift; |
17367270 GR |
694 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); |
695 | ||
58a02bee | 696 | /* enable receive for vf */ |
17367270 | 697 | reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); |
872844dd AD |
698 | reg |= 1 << vf_shift; |
699 | /* | |
700 | * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. | |
701 | * For more info take a look at ixgbe_set_vf_lpe | |
702 | */ | |
703 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
704 | struct net_device *dev = adapter->netdev; | |
705 | int pf_max_frame = dev->mtu + ETH_HLEN; | |
706 | ||
707 | #ifdef CONFIG_FCOE | |
708 | if (dev->features & NETIF_F_FCOE_MTU) | |
709 | pf_max_frame = max_t(int, pf_max_frame, | |
710 | IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
711 | ||
712 | #endif /* CONFIG_FCOE */ | |
713 | if (pf_max_frame > ETH_FRAME_LEN) | |
714 | reg &= ~(1 << vf_shift); | |
715 | } | |
17367270 GR |
716 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); |
717 | ||
58a02bee AD |
718 | /* enable VF mailbox for further messages */ |
719 | adapter->vfinfo[vf].clear_to_send = true; | |
720 | ||
a985b6c3 GR |
721 | /* Enable counting of spoofed packets in the SSVPC register */ |
722 | reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); | |
723 | reg |= (1 << vf_shift); | |
724 | IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); | |
725 | ||
58a02bee | 726 | /* reply to reset with ack and vf mac address */ |
35055928 GR |
727 | msgbuf[0] = IXGBE_VF_RESET; |
728 | if (!is_zero_ether_addr(vf_mac)) { | |
729 | msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; | |
730 | memcpy(addr, vf_mac, ETH_ALEN); | |
731 | } else { | |
732 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
733 | dev_warn(&adapter->pdev->dev, | |
734 | "VF %d has no MAC address assigned, you may have to assign one manually\n", | |
735 | vf); | |
736 | } | |
58a02bee AD |
737 | |
738 | /* | |
739 | * Piggyback the multicast filter type so VF can compute the | |
740 | * correct vectors | |
741 | */ | |
742 | msgbuf[3] = hw->mac.mc_filter_type; | |
743 | ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
748 | static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, | |
749 | u32 *msgbuf, u32 vf) | |
750 | { | |
751 | u8 *new_mac = ((u8 *)(&msgbuf[1])); | |
752 | ||
753 | if (!is_valid_ether_addr(new_mac)) { | |
754 | e_warn(drv, "VF %d attempted to set invalid mac\n", vf); | |
755 | return -1; | |
756 | } | |
757 | ||
758 | if (adapter->vfinfo[vf].pf_set_mac && | |
759 | memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac, | |
760 | ETH_ALEN)) { | |
761 | e_warn(drv, | |
762 | "VF %d attempted to override administratively set MAC address\n" | |
763 | "Reload the VF driver to resume operations\n", | |
764 | vf); | |
765 | return -1; | |
766 | } | |
767 | ||
3970c323 | 768 | return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; |
58a02bee AD |
769 | } |
770 | ||
670224f1 GR |
771 | static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) |
772 | { | |
773 | u32 vlvf; | |
774 | s32 regindex; | |
775 | ||
776 | /* short cut the special case */ | |
777 | if (vlan == 0) | |
778 | return 0; | |
779 | ||
780 | /* Search for the vlan id in the VLVF entries */ | |
781 | for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { | |
782 | vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); | |
783 | if ((vlvf & VLAN_VID_MASK) == vlan) | |
784 | break; | |
785 | } | |
786 | ||
787 | /* Return a negative value if not found */ | |
788 | if (regindex >= IXGBE_VLVF_ENTRIES) | |
789 | regindex = -1; | |
790 | ||
791 | return regindex; | |
792 | } | |
793 | ||
58a02bee AD |
794 | static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, |
795 | u32 *msgbuf, u32 vf) | |
796 | { | |
797 | struct ixgbe_hw *hw = &adapter->hw; | |
798 | int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; | |
799 | int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); | |
800 | int err; | |
670224f1 GR |
801 | s32 reg_ndx; |
802 | u32 vlvf; | |
803 | u32 bits; | |
107d3018 | 804 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
58a02bee | 805 | |
107d3018 | 806 | if (adapter->vfinfo[vf].pf_vlan || tcs) { |
58a02bee AD |
807 | e_warn(drv, |
808 | "VF %d attempted to override administratively set VLAN configuration\n" | |
809 | "Reload the VF driver to resume operations\n", | |
810 | vf); | |
811 | return -1; | |
812 | } | |
813 | ||
814 | if (add) | |
815 | adapter->vfinfo[vf].vlan_count++; | |
816 | else if (adapter->vfinfo[vf].vlan_count) | |
817 | adapter->vfinfo[vf].vlan_count--; | |
818 | ||
670224f1 GR |
819 | /* in case of promiscuous mode any VLAN filter set for a VF must |
820 | * also have the PF pool added to it. | |
821 | */ | |
822 | if (add && adapter->netdev->flags & IFF_PROMISC) | |
823 | err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); | |
824 | ||
58a02bee AD |
825 | err = ixgbe_set_vf_vlan(adapter, add, vid, vf); |
826 | if (!err && adapter->vfinfo[vf].spoofchk_enabled) | |
827 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
828 | ||
670224f1 GR |
829 | /* Go through all the checks to see if the VLAN filter should |
830 | * be wiped completely. | |
831 | */ | |
832 | if (!add && adapter->netdev->flags & IFF_PROMISC) { | |
833 | reg_ndx = ixgbe_find_vlvf_entry(hw, vid); | |
834 | if (reg_ndx < 0) | |
835 | goto out; | |
836 | vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx)); | |
837 | /* See if any other pools are set for this VLAN filter | |
838 | * entry other than the PF. | |
839 | */ | |
840 | if (VMDQ_P(0) < 32) { | |
841 | bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); | |
842 | bits &= ~(1 << VMDQ_P(0)); | |
843 | bits |= IXGBE_READ_REG(hw, | |
844 | IXGBE_VLVFB(reg_ndx * 2) + 1); | |
845 | } else { | |
846 | bits = IXGBE_READ_REG(hw, | |
847 | IXGBE_VLVFB(reg_ndx * 2) + 1); | |
848 | bits &= ~(1 << (VMDQ_P(0) - 32)); | |
849 | bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); | |
850 | } | |
851 | ||
852 | /* If the filter was removed then ensure PF pool bit | |
853 | * is cleared if the PF only added itself to the pool | |
854 | * because the PF is in promiscuous mode. | |
855 | */ | |
856 | if ((vlvf & VLAN_VID_MASK) == vid && | |
857 | !test_bit(vid, adapter->active_vlans) && !bits) | |
858 | ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); | |
859 | } | |
860 | ||
861 | out: | |
862 | ||
58a02bee AD |
863 | return err; |
864 | } | |
865 | ||
866 | static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, | |
867 | u32 *msgbuf, u32 vf) | |
868 | { | |
869 | u8 *new_mac = ((u8 *)(&msgbuf[1])); | |
870 | int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> | |
871 | IXGBE_VT_MSGINFO_SHIFT; | |
872 | int err; | |
873 | ||
874 | if (adapter->vfinfo[vf].pf_set_mac && index > 0) { | |
875 | e_warn(drv, | |
876 | "VF %d requested MACVLAN filter but is administratively denied\n", | |
877 | vf); | |
878 | return -1; | |
879 | } | |
880 | ||
881 | /* An non-zero index indicates the VF is setting a filter */ | |
882 | if (index) { | |
883 | if (!is_valid_ether_addr(new_mac)) { | |
884 | e_warn(drv, "VF %d attempted to set invalid mac\n", vf); | |
885 | return -1; | |
886 | } | |
887 | ||
888 | /* | |
889 | * If the VF is allowed to set MAC filters then turn off | |
890 | * anti-spoofing to avoid false positives. | |
891 | */ | |
892 | if (adapter->vfinfo[vf].spoofchk_enabled) | |
893 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); | |
894 | } | |
895 | ||
896 | err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); | |
897 | if (err == -ENOSPC) | |
898 | e_warn(drv, | |
899 | "VF %d has requested a MACVLAN filter but there is no space for it\n", | |
900 | vf); | |
a3013405 GR |
901 | |
902 | return err < 0; | |
17367270 GR |
903 | } |
904 | ||
374c65d6 AD |
905 | static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, |
906 | u32 *msgbuf, u32 vf) | |
907 | { | |
908 | int api = msgbuf[1]; | |
909 | ||
910 | switch (api) { | |
911 | case ixgbe_mbox_api_10: | |
bffb3bc9 | 912 | case ixgbe_mbox_api_11: |
374c65d6 AD |
913 | adapter->vfinfo[vf].vf_api = api; |
914 | return 0; | |
915 | default: | |
916 | break; | |
917 | } | |
918 | ||
919 | e_info(drv, "VF %d requested invalid api version %u\n", vf, api); | |
920 | ||
921 | return -1; | |
922 | } | |
923 | ||
f591cd9d AD |
924 | static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, |
925 | u32 *msgbuf, u32 vf) | |
926 | { | |
927 | struct net_device *dev = adapter->netdev; | |
928 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; | |
929 | unsigned int default_tc = 0; | |
930 | u8 num_tcs = netdev_get_num_tc(dev); | |
931 | ||
932 | /* verify the PF is supporting the correct APIs */ | |
933 | switch (adapter->vfinfo[vf].vf_api) { | |
934 | case ixgbe_mbox_api_20: | |
935 | case ixgbe_mbox_api_11: | |
936 | break; | |
937 | default: | |
938 | return -1; | |
939 | } | |
940 | ||
941 | /* only allow 1 Tx queue for bandwidth limiting */ | |
942 | msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); | |
943 | msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); | |
944 | ||
945 | /* if TCs > 1 determine which TC belongs to default user priority */ | |
946 | if (num_tcs > 1) | |
947 | default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); | |
948 | ||
949 | /* notify VF of need for VLAN tag stripping, and correct queue */ | |
950 | if (num_tcs) | |
951 | msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; | |
952 | else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) | |
953 | msgbuf[IXGBE_VF_TRANS_VLAN] = 1; | |
954 | else | |
955 | msgbuf[IXGBE_VF_TRANS_VLAN] = 0; | |
956 | ||
957 | /* notify VF of default queue */ | |
958 | msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; | |
959 | ||
960 | return 0; | |
961 | } | |
962 | ||
17367270 GR |
963 | static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) |
964 | { | |
965 | u32 mbx_size = IXGBE_VFMAILBOX_SIZE; | |
c050999e | 966 | u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; |
17367270 GR |
967 | struct ixgbe_hw *hw = &adapter->hw; |
968 | s32 retval; | |
17367270 GR |
969 | |
970 | retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); | |
971 | ||
dcaccc82 | 972 | if (retval) { |
849c4542 | 973 | pr_err("Error receiving message from VF\n"); |
dcaccc82 AD |
974 | return retval; |
975 | } | |
17367270 GR |
976 | |
977 | /* this is a message we already processed, do nothing */ | |
978 | if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) | |
979 | return retval; | |
980 | ||
dcaccc82 AD |
981 | /* flush the ack before we write any messages back */ |
982 | IXGBE_WRITE_FLUSH(hw); | |
983 | ||
374c65d6 AD |
984 | if (msgbuf[0] == IXGBE_VF_RESET) |
985 | return ixgbe_vf_reset_msg(adapter, vf); | |
986 | ||
17367270 GR |
987 | /* |
988 | * until the vf completes a virtual function reset it should not be | |
989 | * allowed to start any configuration. | |
990 | */ | |
17367270 GR |
991 | if (!adapter->vfinfo[vf].clear_to_send) { |
992 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
993 | ixgbe_write_mbx(hw, msgbuf, 1, vf); | |
994 | return retval; | |
995 | } | |
996 | ||
997 | switch ((msgbuf[0] & 0xFFFF)) { | |
998 | case IXGBE_VF_SET_MAC_ADDR: | |
58a02bee | 999 | retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); |
17367270 GR |
1000 | break; |
1001 | case IXGBE_VF_SET_MULTICAST: | |
58a02bee AD |
1002 | retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); |
1003 | break; | |
1004 | case IXGBE_VF_SET_VLAN: | |
1005 | retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); | |
17367270 GR |
1006 | break; |
1007 | case IXGBE_VF_SET_LPE: | |
872844dd | 1008 | retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); |
17367270 | 1009 | break; |
a1cbb15c | 1010 | case IXGBE_VF_SET_MACVLAN: |
58a02bee | 1011 | retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); |
a1cbb15c | 1012 | break; |
374c65d6 AD |
1013 | case IXGBE_VF_API_NEGOTIATE: |
1014 | retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); | |
1015 | break; | |
f591cd9d AD |
1016 | case IXGBE_VF_GET_QUEUES: |
1017 | retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); | |
1018 | break; | |
17367270 | 1019 | default: |
396e799c | 1020 | e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); |
17367270 GR |
1021 | retval = IXGBE_ERR_MBX; |
1022 | break; | |
1023 | } | |
1024 | ||
1025 | /* notify the VF of the results of what it sent us */ | |
1026 | if (retval) | |
1027 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
1028 | else | |
1029 | msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; | |
1030 | ||
1031 | msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; | |
1032 | ||
374c65d6 | 1033 | ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); |
17367270 GR |
1034 | |
1035 | return retval; | |
1036 | } | |
1037 | ||
1038 | static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) | |
1039 | { | |
1040 | struct ixgbe_hw *hw = &adapter->hw; | |
1041 | u32 msg = IXGBE_VT_MSGTYPE_NACK; | |
1042 | ||
1043 | /* if device isn't clear to send it shouldn't be reading either */ | |
1044 | if (!adapter->vfinfo[vf].clear_to_send) | |
1045 | ixgbe_write_mbx(hw, &msg, 1, vf); | |
1046 | } | |
1047 | ||
1048 | void ixgbe_msg_task(struct ixgbe_adapter *adapter) | |
1049 | { | |
1050 | struct ixgbe_hw *hw = &adapter->hw; | |
1051 | u32 vf; | |
1052 | ||
1053 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
1054 | /* process any reset requests */ | |
1055 | if (!ixgbe_check_for_rst(hw, vf)) | |
1056 | ixgbe_vf_reset_event(adapter, vf); | |
1057 | ||
1058 | /* process any messages pending */ | |
1059 | if (!ixgbe_check_for_msg(hw, vf)) | |
1060 | ixgbe_rcv_msg_from_vf(adapter, vf); | |
1061 | ||
1062 | /* process any acks */ | |
1063 | if (!ixgbe_check_for_ack(hw, vf)) | |
1064 | ixgbe_rcv_ack_from_vf(adapter, vf); | |
1065 | } | |
1066 | } | |
1067 | ||
767081ad GR |
1068 | void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) |
1069 | { | |
1070 | struct ixgbe_hw *hw = &adapter->hw; | |
1071 | ||
1072 | /* disable transmit and receive for all vfs */ | |
1073 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); | |
1074 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); | |
1075 | ||
1076 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); | |
1077 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); | |
1078 | } | |
1079 | ||
1080 | void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) | |
1081 | { | |
1082 | struct ixgbe_hw *hw = &adapter->hw; | |
1083 | u32 ping; | |
1084 | int i; | |
1085 | ||
1086 | for (i = 0 ; i < adapter->num_vfs; i++) { | |
1087 | ping = IXGBE_PF_CONTROL_MSG; | |
1088 | if (adapter->vfinfo[i].clear_to_send) | |
1089 | ping |= IXGBE_VT_MSGTYPE_CTS; | |
1090 | ixgbe_write_mbx(hw, &ping, 1, i); | |
1091 | } | |
1092 | } | |
1093 | ||
7f01648a GR |
1094 | int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
1095 | { | |
1096 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1097 | if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) | |
1098 | return -EINVAL; | |
1099 | adapter->vfinfo[vf].pf_set_mac = true; | |
1100 | dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); | |
1101 | dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" | |
1102 | " change effective."); | |
1103 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1104 | dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," | |
1105 | " but the PF device is not up.\n"); | |
1106 | dev_warn(&adapter->pdev->dev, "Bring the PF device up before" | |
1107 | " attempting to use the VF device.\n"); | |
1108 | } | |
1109 | return ixgbe_set_vf_mac(adapter, vf, mac); | |
1110 | } | |
1111 | ||
1112 | int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) | |
1113 | { | |
1114 | int err = 0; | |
1115 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
a985b6c3 | 1116 | struct ixgbe_hw *hw = &adapter->hw; |
7f01648a GR |
1117 | |
1118 | if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) | |
1119 | return -EINVAL; | |
1120 | if (vlan || qos) { | |
026ac677 GR |
1121 | if (adapter->vfinfo[vf].pf_vlan) |
1122 | err = ixgbe_set_vf_vlan(adapter, false, | |
1123 | adapter->vfinfo[vf].pf_vlan, | |
1124 | vf); | |
1125 | if (err) | |
1126 | goto out; | |
7f01648a GR |
1127 | err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); |
1128 | if (err) | |
1129 | goto out; | |
107d3018 | 1130 | ixgbe_set_vmvir(adapter, vlan, qos, vf); |
a985b6c3 | 1131 | ixgbe_set_vmolr(hw, vf, false); |
de4c7f65 | 1132 | if (adapter->vfinfo[vf].spoofchk_enabled) |
a1cbb15c | 1133 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); |
de4c7f65 | 1134 | adapter->vfinfo[vf].vlan_count++; |
7f01648a GR |
1135 | adapter->vfinfo[vf].pf_vlan = vlan; |
1136 | adapter->vfinfo[vf].pf_qos = qos; | |
1137 | dev_info(&adapter->pdev->dev, | |
1138 | "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); | |
1139 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1140 | dev_warn(&adapter->pdev->dev, | |
1141 | "The VF VLAN has been set," | |
1142 | " but the PF device is not up.\n"); | |
1143 | dev_warn(&adapter->pdev->dev, | |
1144 | "Bring the PF device up before" | |
1145 | " attempting to use the VF device.\n"); | |
1146 | } | |
1147 | } else { | |
1148 | err = ixgbe_set_vf_vlan(adapter, false, | |
1149 | adapter->vfinfo[vf].pf_vlan, vf); | |
107d3018 | 1150 | ixgbe_clear_vmvir(adapter, vf); |
a985b6c3 GR |
1151 | ixgbe_set_vmolr(hw, vf, true); |
1152 | hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); | |
de4c7f65 GR |
1153 | if (adapter->vfinfo[vf].vlan_count) |
1154 | adapter->vfinfo[vf].vlan_count--; | |
7f01648a GR |
1155 | adapter->vfinfo[vf].pf_vlan = 0; |
1156 | adapter->vfinfo[vf].pf_qos = 0; | |
1157 | } | |
1158 | out: | |
1159 | return err; | |
1160 | } | |
1161 | ||
9f66d3ee | 1162 | static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) |
ff4ab206 | 1163 | { |
9f66d3ee | 1164 | switch (adapter->link_speed) { |
ff4ab206 LL |
1165 | case IXGBE_LINK_SPEED_100_FULL: |
1166 | return 100; | |
1167 | case IXGBE_LINK_SPEED_1GB_FULL: | |
1168 | return 1000; | |
1169 | case IXGBE_LINK_SPEED_10GB_FULL: | |
1170 | return 10000; | |
1171 | default: | |
1172 | return 0; | |
1173 | } | |
1174 | } | |
1175 | ||
9f66d3ee | 1176 | static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) |
ff4ab206 | 1177 | { |
9f66d3ee AD |
1178 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; |
1179 | struct ixgbe_hw *hw = &adapter->hw; | |
1180 | u32 bcnrc_val = 0; | |
1181 | u16 queue, queues_per_pool; | |
1182 | u16 tx_rate = adapter->vfinfo[vf].tx_rate; | |
1183 | ||
1184 | if (tx_rate) { | |
1185 | /* start with base link speed value */ | |
1186 | bcnrc_val = adapter->vf_rate_link_speed; | |
ff4ab206 | 1187 | |
ff4ab206 | 1188 | /* Calculate the rate factor values to set */ |
9f66d3ee AD |
1189 | bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; |
1190 | bcnrc_val /= tx_rate; | |
1191 | ||
1192 | /* clear everything but the rate factor */ | |
1193 | bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | | |
1194 | IXGBE_RTTBCNRC_RF_DEC_MASK; | |
1195 | ||
1196 | /* enable the rate scheduler */ | |
1197 | bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; | |
ff4ab206 LL |
1198 | } |
1199 | ||
7555e83d LL |
1200 | /* |
1201 | * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM | |
1202 | * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported | |
1203 | * and 0x004 otherwise. | |
1204 | */ | |
1205 | switch (hw->mac.type) { | |
1206 | case ixgbe_mac_82599EB: | |
1207 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); | |
1208 | break; | |
1209 | case ixgbe_mac_X540: | |
1210 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); | |
1211 | break; | |
1212 | default: | |
1213 | break; | |
1214 | } | |
1215 | ||
9f66d3ee AD |
1216 | /* determine how many queues per pool based on VMDq mask */ |
1217 | queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); | |
1218 | ||
1219 | /* write value for all Tx queues belonging to VF */ | |
1220 | for (queue = 0; queue < queues_per_pool; queue++) { | |
1221 | unsigned int reg_idx = (vf * queues_per_pool) + queue; | |
1222 | ||
1223 | IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); | |
1224 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); | |
1225 | } | |
ff4ab206 LL |
1226 | } |
1227 | ||
1228 | void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) | |
1229 | { | |
9f66d3ee | 1230 | int i; |
ff4ab206 LL |
1231 | |
1232 | /* VF Tx rate limit was not set */ | |
9f66d3ee | 1233 | if (!adapter->vf_rate_link_speed) |
ff4ab206 LL |
1234 | return; |
1235 | ||
9f66d3ee | 1236 | if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { |
ff4ab206 LL |
1237 | adapter->vf_rate_link_speed = 0; |
1238 | dev_info(&adapter->pdev->dev, | |
9f66d3ee | 1239 | "Link speed has been changed. VF Transmit rate is disabled\n"); |
ff4ab206 LL |
1240 | } |
1241 | ||
1242 | for (i = 0; i < adapter->num_vfs; i++) { | |
9f66d3ee | 1243 | if (!adapter->vf_rate_link_speed) |
ff4ab206 LL |
1244 | adapter->vfinfo[i].tx_rate = 0; |
1245 | ||
9f66d3ee | 1246 | ixgbe_set_vf_rate_limit(adapter, i); |
ff4ab206 LL |
1247 | } |
1248 | } | |
1249 | ||
7f01648a GR |
1250 | int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) |
1251 | { | |
ff4ab206 | 1252 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
9f66d3ee AD |
1253 | int link_speed; |
1254 | ||
1255 | /* verify VF is active */ | |
1256 | if (vf >= adapter->num_vfs) | |
1257 | return -EINVAL; | |
1258 | ||
1259 | /* verify link is up */ | |
1260 | if (!adapter->link_up) | |
1261 | return -EINVAL; | |
1262 | ||
1263 | /* verify we are linked at 10Gbps */ | |
1264 | link_speed = ixgbe_link_mbps(adapter); | |
1265 | if (link_speed != 10000) | |
1266 | return -EINVAL; | |
ff4ab206 | 1267 | |
9f66d3ee AD |
1268 | /* rate limit cannot be less than 10Mbs or greater than link speed */ |
1269 | if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed))) | |
ff4ab206 LL |
1270 | return -EINVAL; |
1271 | ||
9f66d3ee AD |
1272 | /* store values */ |
1273 | adapter->vf_rate_link_speed = link_speed; | |
1274 | adapter->vfinfo[vf].tx_rate = tx_rate; | |
1275 | ||
1276 | /* update hardware configuration */ | |
1277 | ixgbe_set_vf_rate_limit(adapter, vf); | |
ff4ab206 LL |
1278 | |
1279 | return 0; | |
7f01648a GR |
1280 | } |
1281 | ||
de4c7f65 GR |
1282 | int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) |
1283 | { | |
1284 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1285 | int vf_target_reg = vf >> 3; | |
1286 | int vf_target_shift = vf % 8; | |
1287 | struct ixgbe_hw *hw = &adapter->hw; | |
1288 | u32 regval; | |
1289 | ||
1290 | adapter->vfinfo[vf].spoofchk_enabled = setting; | |
1291 | ||
1292 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
1293 | regval &= ~(1 << vf_target_shift); | |
1294 | regval |= (setting << vf_target_shift); | |
1295 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
1296 | ||
1297 | if (adapter->vfinfo[vf].vlan_count) { | |
1298 | vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; | |
1299 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
1300 | regval &= ~(1 << vf_target_shift); | |
1301 | regval |= (setting << vf_target_shift); | |
1302 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
1303 | } | |
1304 | ||
1305 | return 0; | |
1306 | } | |
1307 | ||
7f01648a GR |
1308 | int ixgbe_ndo_get_vf_config(struct net_device *netdev, |
1309 | int vf, struct ifla_vf_info *ivi) | |
1310 | { | |
1311 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1312 | if (vf >= adapter->num_vfs) | |
1313 | return -EINVAL; | |
1314 | ivi->vf = vf; | |
1315 | memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); | |
ff4ab206 | 1316 | ivi->tx_rate = adapter->vfinfo[vf].tx_rate; |
7f01648a GR |
1317 | ivi->vlan = adapter->vfinfo[vf].pf_vlan; |
1318 | ivi->qos = adapter->vfinfo[vf].pf_qos; | |
de4c7f65 | 1319 | ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; |
7f01648a GR |
1320 | return 0; |
1321 | } |