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17367270 GR |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
a52055e0 | 4 | Copyright(c) 1999 - 2011 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> | |
38 | #ifdef NETIF_F_HW_VLAN_TX | |
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 GR |
46 | #ifdef CONFIG_PCI_IOV |
47 | static int ixgbe_find_enabled_vfs(struct ixgbe_adapter *adapter) | |
48 | { | |
49 | struct pci_dev *pdev = adapter->pdev; | |
50 | struct pci_dev *pvfdev; | |
51 | u16 vf_devfn = 0; | |
52 | int device_id; | |
53 | int vfs_found = 0; | |
54 | ||
55 | switch (adapter->hw.mac.type) { | |
56 | case ixgbe_mac_82599EB: | |
57 | device_id = IXGBE_DEV_ID_82599_VF; | |
58 | break; | |
59 | case ixgbe_mac_X540: | |
60 | device_id = IXGBE_DEV_ID_X540_VF; | |
61 | break; | |
62 | default: | |
63 | device_id = 0; | |
64 | break; | |
65 | } | |
66 | ||
67 | vf_devfn = pdev->devfn + 0x80; | |
68 | pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, device_id, NULL); | |
69 | while (pvfdev) { | |
70 | if (pvfdev->devfn == vf_devfn) | |
71 | vfs_found++; | |
72 | vf_devfn += 2; | |
73 | pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, | |
74 | device_id, pvfdev); | |
75 | } | |
76 | ||
77 | return vfs_found; | |
78 | } | |
79 | ||
80 | void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, | |
81 | const struct ixgbe_info *ii) | |
82 | { | |
83 | struct ixgbe_hw *hw = &adapter->hw; | |
84 | int err = 0; | |
85 | int num_vf_macvlans, i; | |
86 | struct vf_macvlans *mv_list; | |
87 | int pre_existing_vfs = 0; | |
88 | ||
89 | pre_existing_vfs = ixgbe_find_enabled_vfs(adapter); | |
90 | if (!pre_existing_vfs && !adapter->num_vfs) | |
91 | return; | |
92 | ||
93 | /* If there are pre-existing VFs then we have to force | |
94 | * use of that many because they were not deleted the last | |
95 | * time someone removed the PF driver. That would have | |
96 | * been because they were allocated to guest VMs and can't | |
97 | * be removed. Go ahead and just re-enable the old amount. | |
98 | * If the user wants to change the number of VFs they can | |
99 | * use ethtool while making sure no VFs are allocated to | |
100 | * guest VMs... i.e. the right way. | |
101 | */ | |
102 | if (pre_existing_vfs) { | |
103 | adapter->num_vfs = pre_existing_vfs; | |
104 | dev_warn(&adapter->pdev->dev, "Virtual Functions already " | |
105 | "enabled for this device - Please reload all " | |
106 | "VF drivers to avoid spoofed packet errors\n"); | |
107 | } else { | |
108 | err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); | |
109 | } | |
110 | if (err) { | |
111 | e_err(probe, "Failed to enable PCI sriov: %d\n", err); | |
112 | goto err_novfs; | |
113 | } | |
114 | adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; | |
115 | ||
116 | e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs); | |
117 | ||
118 | num_vf_macvlans = hw->mac.num_rar_entries - | |
119 | (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); | |
120 | ||
121 | adapter->mv_list = mv_list = kcalloc(num_vf_macvlans, | |
122 | sizeof(struct vf_macvlans), | |
123 | GFP_KERNEL); | |
124 | if (mv_list) { | |
125 | /* Initialize list of VF macvlans */ | |
126 | INIT_LIST_HEAD(&adapter->vf_mvs.l); | |
127 | for (i = 0; i < num_vf_macvlans; i++) { | |
128 | mv_list->vf = -1; | |
129 | mv_list->free = true; | |
130 | mv_list->rar_entry = hw->mac.num_rar_entries - | |
131 | (i + adapter->num_vfs + 1); | |
132 | list_add(&mv_list->l, &adapter->vf_mvs.l); | |
133 | mv_list++; | |
134 | } | |
135 | } | |
136 | ||
137 | /* If call to enable VFs succeeded then allocate memory | |
138 | * for per VF control structures. | |
139 | */ | |
140 | adapter->vfinfo = | |
141 | kcalloc(adapter->num_vfs, | |
142 | sizeof(struct vf_data_storage), GFP_KERNEL); | |
143 | if (adapter->vfinfo) { | |
144 | /* Now that we're sure SR-IOV is enabled | |
145 | * and memory allocated set up the mailbox parameters | |
146 | */ | |
147 | ixgbe_init_mbx_params_pf(hw); | |
148 | memcpy(&hw->mbx.ops, ii->mbx_ops, | |
149 | sizeof(hw->mbx.ops)); | |
150 | ||
151 | /* Disable RSC when in SR-IOV mode */ | |
152 | adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | | |
153 | IXGBE_FLAG2_RSC_ENABLED); | |
de4c7f65 GR |
154 | for (i = 0; i < adapter->num_vfs; i++) |
155 | adapter->vfinfo[i].spoofchk_enabled = true; | |
c6bda30a GR |
156 | return; |
157 | } | |
158 | ||
159 | /* Oh oh */ | |
160 | e_err(probe, "Unable to allocate memory for VF Data Storage - " | |
161 | "SRIOV disabled\n"); | |
162 | pci_disable_sriov(adapter->pdev); | |
163 | ||
164 | err_novfs: | |
165 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; | |
166 | adapter->num_vfs = 0; | |
167 | } | |
168 | #endif /* #ifdef CONFIG_PCI_IOV */ | |
169 | ||
170 | void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) | |
171 | { | |
172 | struct ixgbe_hw *hw = &adapter->hw; | |
173 | u32 gcr; | |
174 | u32 gpie; | |
175 | u32 vmdctl; | |
176 | int i; | |
177 | ||
178 | #ifdef CONFIG_PCI_IOV | |
179 | /* disable iov and allow time for transactions to clear */ | |
180 | pci_disable_sriov(adapter->pdev); | |
181 | #endif | |
182 | ||
183 | /* turn off device IOV mode */ | |
184 | gcr = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); | |
185 | gcr &= ~(IXGBE_GCR_EXT_SRIOV); | |
186 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr); | |
187 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); | |
188 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
189 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
190 | ||
191 | /* set default pool back to 0 */ | |
192 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
193 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
194 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
195 | IXGBE_WRITE_FLUSH(hw); | |
196 | ||
197 | /* take a breather then clean up driver data */ | |
198 | msleep(100); | |
199 | ||
200 | /* Release reference to VF devices */ | |
201 | for (i = 0; i < adapter->num_vfs; i++) { | |
202 | if (adapter->vfinfo[i].vfdev) | |
203 | pci_dev_put(adapter->vfinfo[i].vfdev); | |
204 | } | |
205 | kfree(adapter->vfinfo); | |
206 | kfree(adapter->mv_list); | |
207 | adapter->vfinfo = NULL; | |
208 | ||
209 | adapter->num_vfs = 0; | |
210 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; | |
211 | } | |
212 | ||
5d5b7c39 ET |
213 | static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, |
214 | int entries, u16 *hash_list, u32 vf) | |
17367270 GR |
215 | { |
216 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; | |
8a07a22d | 217 | struct ixgbe_hw *hw = &adapter->hw; |
17367270 | 218 | int i; |
8a07a22d GR |
219 | u32 vector_bit; |
220 | u32 vector_reg; | |
221 | u32 mta_reg; | |
17367270 GR |
222 | |
223 | /* only so many hash values supported */ | |
224 | entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); | |
225 | ||
226 | /* | |
227 | * salt away the number of multi cast addresses assigned | |
228 | * to this VF for later use to restore when the PF multi cast | |
229 | * list changes | |
230 | */ | |
231 | vfinfo->num_vf_mc_hashes = entries; | |
232 | ||
233 | /* | |
234 | * VFs are limited to using the MTA hash table for their multicast | |
235 | * addresses | |
236 | */ | |
237 | for (i = 0; i < entries; i++) { | |
e81a1ba8 | 238 | vfinfo->vf_mc_hashes[i] = hash_list[i]; |
17367270 GR |
239 | } |
240 | ||
8a07a22d GR |
241 | for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { |
242 | vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; | |
243 | vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; | |
244 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
245 | mta_reg |= (1 << vector_bit); | |
246 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
247 | } | |
17367270 GR |
248 | |
249 | return 0; | |
250 | } | |
251 | ||
a1cbb15c GR |
252 | static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) |
253 | { | |
254 | struct ixgbe_hw *hw = &adapter->hw; | |
255 | struct list_head *pos; | |
256 | struct vf_macvlans *entry; | |
257 | ||
258 | list_for_each(pos, &adapter->vf_mvs.l) { | |
259 | entry = list_entry(pos, struct vf_macvlans, l); | |
260 | if (entry->free == false) | |
261 | hw->mac.ops.set_rar(hw, entry->rar_entry, | |
262 | entry->vf_macvlan, | |
263 | entry->vf, IXGBE_RAH_AV); | |
264 | } | |
265 | } | |
266 | ||
17367270 GR |
267 | void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) |
268 | { | |
269 | struct ixgbe_hw *hw = &adapter->hw; | |
270 | struct vf_data_storage *vfinfo; | |
271 | int i, j; | |
272 | u32 vector_bit; | |
273 | u32 vector_reg; | |
274 | u32 mta_reg; | |
275 | ||
276 | for (i = 0; i < adapter->num_vfs; i++) { | |
277 | vfinfo = &adapter->vfinfo[i]; | |
278 | for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { | |
279 | hw->addr_ctrl.mta_in_use++; | |
280 | vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; | |
281 | vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; | |
282 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
283 | mta_reg |= (1 << vector_bit); | |
284 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
285 | } | |
286 | } | |
a1cbb15c GR |
287 | |
288 | /* Restore any VF macvlans */ | |
289 | ixgbe_restore_vf_macvlans(adapter); | |
17367270 GR |
290 | } |
291 | ||
5d5b7c39 ET |
292 | static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, |
293 | u32 vf) | |
17367270 | 294 | { |
17367270 GR |
295 | return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); |
296 | } | |
297 | ||
b32c8dcc | 298 | static void ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf) |
e9f98072 GR |
299 | { |
300 | struct ixgbe_hw *hw = &adapter->hw; | |
301 | int new_mtu = msgbuf[1]; | |
302 | u32 max_frs; | |
303 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
304 | ||
305 | /* Only X540 supports jumbo frames in IOV mode */ | |
306 | if (adapter->hw.mac.type != ixgbe_mac_X540) | |
307 | return; | |
308 | ||
309 | /* MTU < 68 is an error and causes problems on some kernels */ | |
310 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) { | |
311 | e_err(drv, "VF mtu %d out of range\n", new_mtu); | |
312 | return; | |
313 | } | |
314 | ||
315 | max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) & | |
316 | IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT; | |
317 | if (max_frs < new_mtu) { | |
318 | max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT; | |
319 | IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); | |
320 | } | |
321 | ||
322 | e_info(hw, "VF requests change max MTU to %d\n", new_mtu); | |
323 | } | |
324 | ||
5d5b7c39 | 325 | static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) |
17367270 GR |
326 | { |
327 | u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); | |
f0412776 | 328 | vmolr |= (IXGBE_VMOLR_ROMPE | |
17367270 | 329 | IXGBE_VMOLR_BAM); |
f0412776 GR |
330 | if (aupe) |
331 | vmolr |= IXGBE_VMOLR_AUPE; | |
332 | else | |
333 | vmolr &= ~IXGBE_VMOLR_AUPE; | |
17367270 GR |
334 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); |
335 | } | |
336 | ||
7f01648a GR |
337 | static void ixgbe_set_vmvir(struct ixgbe_adapter *adapter, u32 vid, u32 vf) |
338 | { | |
339 | struct ixgbe_hw *hw = &adapter->hw; | |
340 | ||
341 | if (vid) | |
342 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), | |
343 | (vid | IXGBE_VMVIR_VLANA_DEFAULT)); | |
344 | else | |
345 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); | |
346 | } | |
347 | ||
5d5b7c39 | 348 | static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
349 | { |
350 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 351 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
17367270 GR |
352 | |
353 | /* reset offloads to defaults */ | |
7f01648a GR |
354 | if (adapter->vfinfo[vf].pf_vlan) { |
355 | ixgbe_set_vf_vlan(adapter, true, | |
356 | adapter->vfinfo[vf].pf_vlan, vf); | |
357 | ixgbe_set_vmvir(adapter, | |
358 | (adapter->vfinfo[vf].pf_vlan | | |
359 | (adapter->vfinfo[vf].pf_qos << | |
360 | VLAN_PRIO_SHIFT)), vf); | |
361 | ixgbe_set_vmolr(hw, vf, false); | |
362 | } else { | |
363 | ixgbe_set_vmvir(adapter, 0, vf); | |
364 | ixgbe_set_vmolr(hw, vf, true); | |
365 | } | |
17367270 GR |
366 | |
367 | /* reset multicast table array for vf */ | |
368 | adapter->vfinfo[vf].num_vf_mc_hashes = 0; | |
369 | ||
370 | /* Flush and reset the mta with the new values */ | |
371 | ixgbe_set_rx_mode(adapter->netdev); | |
372 | ||
2850062a | 373 | hw->mac.ops.clear_rar(hw, rar_entry); |
17367270 GR |
374 | } |
375 | ||
5d5b7c39 ET |
376 | static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, |
377 | int vf, unsigned char *mac_addr) | |
17367270 GR |
378 | { |
379 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 380 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
17367270 GR |
381 | |
382 | memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6); | |
2850062a | 383 | hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); |
17367270 GR |
384 | |
385 | return 0; | |
386 | } | |
387 | ||
a1cbb15c GR |
388 | static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, |
389 | int vf, int index, unsigned char *mac_addr) | |
390 | { | |
391 | struct ixgbe_hw *hw = &adapter->hw; | |
392 | struct list_head *pos; | |
393 | struct vf_macvlans *entry; | |
394 | ||
395 | if (index <= 1) { | |
396 | list_for_each(pos, &adapter->vf_mvs.l) { | |
397 | entry = list_entry(pos, struct vf_macvlans, l); | |
398 | if (entry->vf == vf) { | |
399 | entry->vf = -1; | |
400 | entry->free = true; | |
401 | entry->is_macvlan = false; | |
402 | hw->mac.ops.clear_rar(hw, entry->rar_entry); | |
403 | } | |
404 | } | |
405 | } | |
406 | ||
407 | /* | |
408 | * If index was zero then we were asked to clear the uc list | |
409 | * for the VF. We're done. | |
410 | */ | |
411 | if (!index) | |
412 | return 0; | |
413 | ||
414 | entry = NULL; | |
415 | ||
416 | list_for_each(pos, &adapter->vf_mvs.l) { | |
417 | entry = list_entry(pos, struct vf_macvlans, l); | |
418 | if (entry->free) | |
419 | break; | |
420 | } | |
421 | ||
422 | /* | |
423 | * If we traversed the entire list and didn't find a free entry | |
424 | * then we're out of space on the RAR table. Also entry may | |
425 | * be NULL because the original memory allocation for the list | |
426 | * failed, which is not fatal but does mean we can't support | |
427 | * VF requests for MACVLAN because we couldn't allocate | |
428 | * memory for the list management required. | |
429 | */ | |
430 | if (!entry || !entry->free) | |
431 | return -ENOSPC; | |
432 | ||
433 | entry->free = false; | |
434 | entry->is_macvlan = true; | |
435 | entry->vf = vf; | |
436 | memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); | |
437 | ||
438 | hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); | |
439 | ||
440 | return 0; | |
441 | } | |
442 | ||
c6bda30a GR |
443 | int ixgbe_check_vf_assignment(struct ixgbe_adapter *adapter) |
444 | { | |
01264108 | 445 | #ifdef CONFIG_PCI_IOV |
c6bda30a GR |
446 | int i; |
447 | for (i = 0; i < adapter->num_vfs; i++) { | |
448 | if (adapter->vfinfo[i].vfdev->dev_flags & | |
449 | PCI_DEV_FLAGS_ASSIGNED) | |
450 | return true; | |
451 | } | |
01264108 | 452 | #endif |
c6bda30a GR |
453 | return false; |
454 | } | |
455 | ||
17367270 GR |
456 | int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) |
457 | { | |
458 | unsigned char vf_mac_addr[6]; | |
c60fbb00 | 459 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
17367270 | 460 | unsigned int vfn = (event_mask & 0x3f); |
c6bda30a GR |
461 | struct pci_dev *pvfdev; |
462 | unsigned int device_id; | |
463 | u16 thisvf_devfn = (pdev->devfn + 0x80 + (vfn << 1)) | | |
464 | (pdev->devfn & 1); | |
17367270 GR |
465 | |
466 | bool enable = ((event_mask & 0x10000000U) != 0); | |
467 | ||
468 | if (enable) { | |
469 | random_ether_addr(vf_mac_addr); | |
396e799c ET |
470 | e_info(probe, "IOV: VF %d is enabled MAC %pM\n", |
471 | vfn, vf_mac_addr); | |
17367270 GR |
472 | /* |
473 | * Store away the VF "permananet" MAC address, it will ask | |
474 | * for it later. | |
475 | */ | |
476 | memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); | |
c6bda30a GR |
477 | |
478 | switch (adapter->hw.mac.type) { | |
479 | case ixgbe_mac_82599EB: | |
480 | device_id = IXGBE_DEV_ID_82599_VF; | |
481 | break; | |
482 | case ixgbe_mac_X540: | |
483 | device_id = IXGBE_DEV_ID_X540_VF; | |
484 | break; | |
485 | default: | |
486 | device_id = 0; | |
487 | break; | |
488 | } | |
489 | ||
490 | pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, device_id, NULL); | |
491 | while (pvfdev) { | |
492 | if (pvfdev->devfn == thisvf_devfn) | |
493 | break; | |
494 | pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, | |
495 | device_id, pvfdev); | |
496 | } | |
497 | if (pvfdev) | |
498 | adapter->vfinfo[vfn].vfdev = pvfdev; | |
499 | else | |
500 | e_err(drv, "Couldn't find pci dev ptr for VF %4.4x\n", | |
501 | thisvf_devfn); | |
17367270 GR |
502 | } |
503 | ||
504 | return 0; | |
505 | } | |
506 | ||
5d5b7c39 | 507 | static inline void ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
508 | { |
509 | struct ixgbe_hw *hw = &adapter->hw; | |
510 | u32 reg; | |
511 | u32 reg_offset, vf_shift; | |
512 | ||
513 | vf_shift = vf % 32; | |
514 | reg_offset = vf / 32; | |
515 | ||
516 | /* enable transmit and receive for vf */ | |
517 | reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); | |
518 | reg |= (reg | (1 << vf_shift)); | |
519 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); | |
520 | ||
521 | reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); | |
522 | reg |= (reg | (1 << vf_shift)); | |
523 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); | |
524 | ||
a985b6c3 GR |
525 | /* Enable counting of spoofed packets in the SSVPC register */ |
526 | reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); | |
527 | reg |= (1 << vf_shift); | |
528 | IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); | |
529 | ||
17367270 GR |
530 | ixgbe_vf_reset_event(adapter, vf); |
531 | } | |
532 | ||
533 | static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) | |
534 | { | |
535 | u32 mbx_size = IXGBE_VFMAILBOX_SIZE; | |
c050999e | 536 | u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; |
17367270 GR |
537 | struct ixgbe_hw *hw = &adapter->hw; |
538 | s32 retval; | |
539 | int entries; | |
540 | u16 *hash_list; | |
a1cbb15c | 541 | int add, vid, index; |
d3306c29 | 542 | u8 *new_mac; |
17367270 GR |
543 | |
544 | retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); | |
545 | ||
546 | if (retval) | |
849c4542 | 547 | pr_err("Error receiving message from VF\n"); |
17367270 GR |
548 | |
549 | /* this is a message we already processed, do nothing */ | |
550 | if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) | |
551 | return retval; | |
552 | ||
553 | /* | |
554 | * until the vf completes a virtual function reset it should not be | |
555 | * allowed to start any configuration. | |
556 | */ | |
557 | ||
558 | if (msgbuf[0] == IXGBE_VF_RESET) { | |
559 | unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; | |
d3306c29 | 560 | new_mac = (u8 *)(&msgbuf[1]); |
396e799c | 561 | e_info(probe, "VF Reset msg received from vf %d\n", vf); |
17367270 GR |
562 | adapter->vfinfo[vf].clear_to_send = false; |
563 | ixgbe_vf_reset_msg(adapter, vf); | |
564 | adapter->vfinfo[vf].clear_to_send = true; | |
565 | ||
d3306c29 GR |
566 | if (is_valid_ether_addr(new_mac) && |
567 | !adapter->vfinfo[vf].pf_set_mac) | |
568 | ixgbe_set_vf_mac(adapter, vf, vf_mac); | |
569 | else | |
570 | ixgbe_set_vf_mac(adapter, | |
571 | vf, adapter->vfinfo[vf].vf_mac_addresses); | |
572 | ||
17367270 GR |
573 | /* reply to reset with ack and vf mac address */ |
574 | msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK; | |
d3306c29 | 575 | memcpy(new_mac, vf_mac, IXGBE_ETH_LENGTH_OF_ADDRESS); |
17367270 GR |
576 | /* |
577 | * Piggyback the multicast filter type so VF can compute the | |
578 | * correct vectors | |
579 | */ | |
580 | msgbuf[3] = hw->mac.mc_filter_type; | |
581 | ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); | |
582 | ||
583 | return retval; | |
584 | } | |
585 | ||
586 | if (!adapter->vfinfo[vf].clear_to_send) { | |
587 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
588 | ixgbe_write_mbx(hw, msgbuf, 1, vf); | |
589 | return retval; | |
590 | } | |
591 | ||
592 | switch ((msgbuf[0] & 0xFFFF)) { | |
593 | case IXGBE_VF_SET_MAC_ADDR: | |
d3306c29 GR |
594 | new_mac = ((u8 *)(&msgbuf[1])); |
595 | if (is_valid_ether_addr(new_mac) && | |
596 | !adapter->vfinfo[vf].pf_set_mac) { | |
597 | ixgbe_set_vf_mac(adapter, vf, new_mac); | |
598 | } else if (memcmp(adapter->vfinfo[vf].vf_mac_addresses, | |
599 | new_mac, ETH_ALEN)) { | |
600 | e_warn(drv, "VF %d attempted to override " | |
601 | "administratively set MAC address\nReload " | |
602 | "the VF driver to resume operations\n", vf); | |
603 | retval = -1; | |
17367270 GR |
604 | } |
605 | break; | |
606 | case IXGBE_VF_SET_MULTICAST: | |
607 | entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) | |
608 | >> IXGBE_VT_MSGINFO_SHIFT; | |
609 | hash_list = (u16 *)&msgbuf[1]; | |
610 | retval = ixgbe_set_vf_multicasts(adapter, entries, | |
611 | hash_list, vf); | |
612 | break; | |
613 | case IXGBE_VF_SET_LPE: | |
e9f98072 | 614 | ixgbe_set_vf_lpe(adapter, msgbuf); |
17367270 GR |
615 | break; |
616 | case IXGBE_VF_SET_VLAN: | |
617 | add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) | |
618 | >> IXGBE_VT_MSGINFO_SHIFT; | |
619 | vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); | |
d3306c29 GR |
620 | if (adapter->vfinfo[vf].pf_vlan) { |
621 | e_warn(drv, "VF %d attempted to override " | |
622 | "administratively set VLAN configuration\n" | |
623 | "Reload the VF driver to resume operations\n", | |
624 | vf); | |
625 | retval = -1; | |
626 | } else { | |
de4c7f65 GR |
627 | if (add) |
628 | adapter->vfinfo[vf].vlan_count++; | |
629 | else if (adapter->vfinfo[vf].vlan_count) | |
630 | adapter->vfinfo[vf].vlan_count--; | |
d3306c29 | 631 | retval = ixgbe_set_vf_vlan(adapter, add, vid, vf); |
de4c7f65 GR |
632 | if (!retval && adapter->vfinfo[vf].spoofchk_enabled) |
633 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
d3306c29 | 634 | } |
17367270 | 635 | break; |
a1cbb15c GR |
636 | case IXGBE_VF_SET_MACVLAN: |
637 | index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> | |
638 | IXGBE_VT_MSGINFO_SHIFT; | |
639 | /* | |
640 | * If the VF is allowed to set MAC filters then turn off | |
641 | * anti-spoofing to avoid false positives. An index | |
642 | * greater than 0 will indicate the VF is setting a | |
643 | * macvlan MAC filter. | |
644 | */ | |
de4c7f65 GR |
645 | if (index > 0 && adapter->vfinfo[vf].spoofchk_enabled) |
646 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); | |
a1cbb15c GR |
647 | retval = ixgbe_set_vf_macvlan(adapter, vf, index, |
648 | (unsigned char *)(&msgbuf[1])); | |
649 | break; | |
17367270 | 650 | default: |
396e799c | 651 | e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); |
17367270 GR |
652 | retval = IXGBE_ERR_MBX; |
653 | break; | |
654 | } | |
655 | ||
656 | /* notify the VF of the results of what it sent us */ | |
657 | if (retval) | |
658 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
659 | else | |
660 | msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; | |
661 | ||
662 | msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; | |
663 | ||
664 | ixgbe_write_mbx(hw, msgbuf, 1, vf); | |
665 | ||
666 | return retval; | |
667 | } | |
668 | ||
669 | static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) | |
670 | { | |
671 | struct ixgbe_hw *hw = &adapter->hw; | |
672 | u32 msg = IXGBE_VT_MSGTYPE_NACK; | |
673 | ||
674 | /* if device isn't clear to send it shouldn't be reading either */ | |
675 | if (!adapter->vfinfo[vf].clear_to_send) | |
676 | ixgbe_write_mbx(hw, &msg, 1, vf); | |
677 | } | |
678 | ||
679 | void ixgbe_msg_task(struct ixgbe_adapter *adapter) | |
680 | { | |
681 | struct ixgbe_hw *hw = &adapter->hw; | |
682 | u32 vf; | |
683 | ||
684 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
685 | /* process any reset requests */ | |
686 | if (!ixgbe_check_for_rst(hw, vf)) | |
687 | ixgbe_vf_reset_event(adapter, vf); | |
688 | ||
689 | /* process any messages pending */ | |
690 | if (!ixgbe_check_for_msg(hw, vf)) | |
691 | ixgbe_rcv_msg_from_vf(adapter, vf); | |
692 | ||
693 | /* process any acks */ | |
694 | if (!ixgbe_check_for_ack(hw, vf)) | |
695 | ixgbe_rcv_ack_from_vf(adapter, vf); | |
696 | } | |
697 | } | |
698 | ||
767081ad GR |
699 | void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) |
700 | { | |
701 | struct ixgbe_hw *hw = &adapter->hw; | |
702 | ||
703 | /* disable transmit and receive for all vfs */ | |
704 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); | |
705 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); | |
706 | ||
707 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); | |
708 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); | |
709 | } | |
710 | ||
711 | void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) | |
712 | { | |
713 | struct ixgbe_hw *hw = &adapter->hw; | |
714 | u32 ping; | |
715 | int i; | |
716 | ||
717 | for (i = 0 ; i < adapter->num_vfs; i++) { | |
718 | ping = IXGBE_PF_CONTROL_MSG; | |
719 | if (adapter->vfinfo[i].clear_to_send) | |
720 | ping |= IXGBE_VT_MSGTYPE_CTS; | |
721 | ixgbe_write_mbx(hw, &ping, 1, i); | |
722 | } | |
723 | } | |
724 | ||
7f01648a GR |
725 | int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
726 | { | |
727 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
728 | if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) | |
729 | return -EINVAL; | |
730 | adapter->vfinfo[vf].pf_set_mac = true; | |
731 | dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); | |
732 | dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" | |
733 | " change effective."); | |
734 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
735 | dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," | |
736 | " but the PF device is not up.\n"); | |
737 | dev_warn(&adapter->pdev->dev, "Bring the PF device up before" | |
738 | " attempting to use the VF device.\n"); | |
739 | } | |
740 | return ixgbe_set_vf_mac(adapter, vf, mac); | |
741 | } | |
742 | ||
743 | int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) | |
744 | { | |
745 | int err = 0; | |
746 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
a985b6c3 | 747 | struct ixgbe_hw *hw = &adapter->hw; |
7f01648a GR |
748 | |
749 | if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) | |
750 | return -EINVAL; | |
751 | if (vlan || qos) { | |
752 | err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); | |
753 | if (err) | |
754 | goto out; | |
755 | ixgbe_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf); | |
a985b6c3 | 756 | ixgbe_set_vmolr(hw, vf, false); |
de4c7f65 | 757 | if (adapter->vfinfo[vf].spoofchk_enabled) |
a1cbb15c | 758 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); |
de4c7f65 | 759 | adapter->vfinfo[vf].vlan_count++; |
7f01648a GR |
760 | adapter->vfinfo[vf].pf_vlan = vlan; |
761 | adapter->vfinfo[vf].pf_qos = qos; | |
762 | dev_info(&adapter->pdev->dev, | |
763 | "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); | |
764 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
765 | dev_warn(&adapter->pdev->dev, | |
766 | "The VF VLAN has been set," | |
767 | " but the PF device is not up.\n"); | |
768 | dev_warn(&adapter->pdev->dev, | |
769 | "Bring the PF device up before" | |
770 | " attempting to use the VF device.\n"); | |
771 | } | |
772 | } else { | |
773 | err = ixgbe_set_vf_vlan(adapter, false, | |
774 | adapter->vfinfo[vf].pf_vlan, vf); | |
775 | ixgbe_set_vmvir(adapter, vlan, vf); | |
a985b6c3 GR |
776 | ixgbe_set_vmolr(hw, vf, true); |
777 | hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); | |
de4c7f65 GR |
778 | if (adapter->vfinfo[vf].vlan_count) |
779 | adapter->vfinfo[vf].vlan_count--; | |
7f01648a GR |
780 | adapter->vfinfo[vf].pf_vlan = 0; |
781 | adapter->vfinfo[vf].pf_qos = 0; | |
782 | } | |
783 | out: | |
784 | return err; | |
785 | } | |
786 | ||
ff4ab206 LL |
787 | static int ixgbe_link_mbps(int internal_link_speed) |
788 | { | |
789 | switch (internal_link_speed) { | |
790 | case IXGBE_LINK_SPEED_100_FULL: | |
791 | return 100; | |
792 | case IXGBE_LINK_SPEED_1GB_FULL: | |
793 | return 1000; | |
794 | case IXGBE_LINK_SPEED_10GB_FULL: | |
795 | return 10000; | |
796 | default: | |
797 | return 0; | |
798 | } | |
799 | } | |
800 | ||
801 | static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate, | |
802 | int link_speed) | |
803 | { | |
804 | int rf_dec, rf_int; | |
805 | u32 bcnrc_val; | |
806 | ||
807 | if (tx_rate != 0) { | |
808 | /* Calculate the rate factor values to set */ | |
809 | rf_int = link_speed / tx_rate; | |
810 | rf_dec = (link_speed - (rf_int * tx_rate)); | |
811 | rf_dec = (rf_dec * (1<<IXGBE_RTTBCNRC_RF_INT_SHIFT)) / tx_rate; | |
812 | ||
813 | bcnrc_val = IXGBE_RTTBCNRC_RS_ENA; | |
814 | bcnrc_val |= ((rf_int<<IXGBE_RTTBCNRC_RF_INT_SHIFT) & | |
815 | IXGBE_RTTBCNRC_RF_INT_MASK); | |
816 | bcnrc_val |= (rf_dec & IXGBE_RTTBCNRC_RF_DEC_MASK); | |
817 | } else { | |
818 | bcnrc_val = 0; | |
819 | } | |
820 | ||
821 | IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, 2*vf); /* vf Y uses queue 2*Y */ | |
7555e83d LL |
822 | /* |
823 | * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM | |
824 | * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported | |
825 | * and 0x004 otherwise. | |
826 | */ | |
827 | switch (hw->mac.type) { | |
828 | case ixgbe_mac_82599EB: | |
829 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); | |
830 | break; | |
831 | case ixgbe_mac_X540: | |
832 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); | |
833 | break; | |
834 | default: | |
835 | break; | |
836 | } | |
837 | ||
ff4ab206 LL |
838 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); |
839 | } | |
840 | ||
841 | void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) | |
842 | { | |
843 | int actual_link_speed, i; | |
844 | bool reset_rate = false; | |
845 | ||
846 | /* VF Tx rate limit was not set */ | |
847 | if (adapter->vf_rate_link_speed == 0) | |
848 | return; | |
849 | ||
850 | actual_link_speed = ixgbe_link_mbps(adapter->link_speed); | |
851 | if (actual_link_speed != adapter->vf_rate_link_speed) { | |
852 | reset_rate = true; | |
853 | adapter->vf_rate_link_speed = 0; | |
854 | dev_info(&adapter->pdev->dev, | |
855 | "Link speed has been changed. VF Transmit rate " | |
856 | "is disabled\n"); | |
857 | } | |
858 | ||
859 | for (i = 0; i < adapter->num_vfs; i++) { | |
860 | if (reset_rate) | |
861 | adapter->vfinfo[i].tx_rate = 0; | |
862 | ||
863 | ixgbe_set_vf_rate_limit(&adapter->hw, i, | |
864 | adapter->vfinfo[i].tx_rate, | |
865 | actual_link_speed); | |
866 | } | |
867 | } | |
868 | ||
7f01648a GR |
869 | int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) |
870 | { | |
ff4ab206 LL |
871 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
872 | struct ixgbe_hw *hw = &adapter->hw; | |
873 | int actual_link_speed; | |
874 | ||
875 | actual_link_speed = ixgbe_link_mbps(adapter->link_speed); | |
876 | if ((vf >= adapter->num_vfs) || (!adapter->link_up) || | |
877 | (tx_rate > actual_link_speed) || (actual_link_speed != 10000) || | |
878 | ((tx_rate != 0) && (tx_rate <= 10))) | |
879 | /* rate limit cannot be set to 10Mb or less in 10Gb adapters */ | |
880 | return -EINVAL; | |
881 | ||
882 | adapter->vf_rate_link_speed = actual_link_speed; | |
883 | adapter->vfinfo[vf].tx_rate = (u16)tx_rate; | |
884 | ixgbe_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed); | |
885 | ||
886 | return 0; | |
7f01648a GR |
887 | } |
888 | ||
de4c7f65 GR |
889 | int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) |
890 | { | |
891 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
892 | int vf_target_reg = vf >> 3; | |
893 | int vf_target_shift = vf % 8; | |
894 | struct ixgbe_hw *hw = &adapter->hw; | |
895 | u32 regval; | |
896 | ||
897 | adapter->vfinfo[vf].spoofchk_enabled = setting; | |
898 | ||
899 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
900 | regval &= ~(1 << vf_target_shift); | |
901 | regval |= (setting << vf_target_shift); | |
902 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
903 | ||
904 | if (adapter->vfinfo[vf].vlan_count) { | |
905 | vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; | |
906 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
907 | regval &= ~(1 << vf_target_shift); | |
908 | regval |= (setting << vf_target_shift); | |
909 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
910 | } | |
911 | ||
912 | return 0; | |
913 | } | |
914 | ||
7f01648a GR |
915 | int ixgbe_ndo_get_vf_config(struct net_device *netdev, |
916 | int vf, struct ifla_vf_info *ivi) | |
917 | { | |
918 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
919 | if (vf >= adapter->num_vfs) | |
920 | return -EINVAL; | |
921 | ivi->vf = vf; | |
922 | memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); | |
ff4ab206 | 923 | ivi->tx_rate = adapter->vfinfo[vf].tx_rate; |
7f01648a GR |
924 | ivi->vlan = adapter->vfinfo[vf].pf_vlan; |
925 | ivi->qos = adapter->vfinfo[vf].pf_qos; | |
de4c7f65 | 926 | ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; |
7f01648a GR |
927 | return 0; |
928 | } |