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17367270 GR |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
94971820 | 4 | Copyright(c) 1999 - 2012 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 | 46 | #ifdef CONFIG_PCI_IOV |
c6bda30a GR |
47 | void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, |
48 | const struct ixgbe_info *ii) | |
49 | { | |
50 | struct ixgbe_hw *hw = &adapter->hw; | |
c6bda30a GR |
51 | int num_vf_macvlans, i; |
52 | struct vf_macvlans *mv_list; | |
53 | int pre_existing_vfs = 0; | |
54 | ||
9297127b | 55 | pre_existing_vfs = pci_num_vf(adapter->pdev); |
c6bda30a GR |
56 | if (!pre_existing_vfs && !adapter->num_vfs) |
57 | return; | |
58 | ||
59 | /* If there are pre-existing VFs then we have to force | |
60 | * use of that many because they were not deleted the last | |
61 | * time someone removed the PF driver. That would have | |
62 | * been because they were allocated to guest VMs and can't | |
63 | * be removed. Go ahead and just re-enable the old amount. | |
64 | * If the user wants to change the number of VFs they can | |
65 | * use ethtool while making sure no VFs are allocated to | |
66 | * guest VMs... i.e. the right way. | |
67 | */ | |
68 | if (pre_existing_vfs) { | |
69 | adapter->num_vfs = pre_existing_vfs; | |
70 | dev_warn(&adapter->pdev->dev, "Virtual Functions already " | |
71 | "enabled for this device - Please reload all " | |
72 | "VF drivers to avoid spoofed packet errors\n"); | |
73 | } else { | |
99d74487 AD |
74 | int err; |
75 | /* | |
76 | * The 82599 supports up to 64 VFs per physical function | |
77 | * but this implementation limits allocation to 63 so that | |
78 | * basic networking resources are still available to the | |
79 | * physical function. If the user requests greater thn | |
80 | * 63 VFs then it is an error - reset to default of zero. | |
81 | */ | |
82 | adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63); | |
83 | ||
c6bda30a | 84 | err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); |
73079ea0 AD |
85 | if (err) { |
86 | e_err(probe, "Failed to enable PCI sriov: %d\n", err); | |
99d74487 AD |
87 | adapter->num_vfs = 0; |
88 | return; | |
73079ea0 | 89 | } |
c6bda30a | 90 | } |
c6bda30a | 91 | |
73079ea0 | 92 | adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; |
c6bda30a GR |
93 | e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs); |
94 | ||
73079ea0 AD |
95 | /* Enable VMDq flag so device will be set in VM mode */ |
96 | adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED; | |
97 | if (!adapter->ring_feature[RING_F_VMDQ].limit) | |
98 | adapter->ring_feature[RING_F_VMDQ].limit = 1; | |
99 | adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs; | |
100 | ||
c6bda30a GR |
101 | num_vf_macvlans = hw->mac.num_rar_entries - |
102 | (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); | |
103 | ||
104 | adapter->mv_list = mv_list = kcalloc(num_vf_macvlans, | |
105 | sizeof(struct vf_macvlans), | |
106 | GFP_KERNEL); | |
107 | if (mv_list) { | |
108 | /* Initialize list of VF macvlans */ | |
109 | INIT_LIST_HEAD(&adapter->vf_mvs.l); | |
110 | for (i = 0; i < num_vf_macvlans; i++) { | |
111 | mv_list->vf = -1; | |
112 | mv_list->free = true; | |
113 | mv_list->rar_entry = hw->mac.num_rar_entries - | |
114 | (i + adapter->num_vfs + 1); | |
115 | list_add(&mv_list->l, &adapter->vf_mvs.l); | |
116 | mv_list++; | |
117 | } | |
118 | } | |
119 | ||
120 | /* If call to enable VFs succeeded then allocate memory | |
121 | * for per VF control structures. | |
122 | */ | |
123 | adapter->vfinfo = | |
124 | kcalloc(adapter->num_vfs, | |
125 | sizeof(struct vf_data_storage), GFP_KERNEL); | |
126 | if (adapter->vfinfo) { | |
127 | /* Now that we're sure SR-IOV is enabled | |
128 | * and memory allocated set up the mailbox parameters | |
129 | */ | |
130 | ixgbe_init_mbx_params_pf(hw); | |
73079ea0 AD |
131 | memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); |
132 | ||
133 | /* limit trafffic classes based on VFs enabled */ | |
134 | if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && | |
135 | (adapter->num_vfs < 16)) { | |
136 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
137 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
138 | } else if (adapter->num_vfs < 32) { | |
139 | adapter->dcb_cfg.num_tcs.pg_tcs = 4; | |
140 | adapter->dcb_cfg.num_tcs.pfc_tcs = 4; | |
141 | } else { | |
142 | adapter->dcb_cfg.num_tcs.pg_tcs = 1; | |
143 | adapter->dcb_cfg.num_tcs.pfc_tcs = 1; | |
144 | } | |
145 | ||
146 | /* We do not support RSS w/ SR-IOV */ | |
147 | adapter->ring_feature[RING_F_RSS].limit = 1; | |
c6bda30a GR |
148 | |
149 | /* Disable RSC when in SR-IOV mode */ | |
150 | adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | | |
151 | IXGBE_FLAG2_RSC_ENABLED); | |
73079ea0 | 152 | |
73079ea0 | 153 | /* enable spoof checking for all VFs */ |
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"); | |
99d74487 | 162 | ixgbe_disable_sriov(adapter); |
c6bda30a | 163 | } |
c6bda30a | 164 | |
9297127b AD |
165 | static bool ixgbe_vfs_are_assigned(struct ixgbe_adapter *adapter) |
166 | { | |
167 | struct pci_dev *pdev = adapter->pdev; | |
168 | struct pci_dev *vfdev; | |
169 | int dev_id; | |
170 | ||
171 | switch (adapter->hw.mac.type) { | |
172 | case ixgbe_mac_82599EB: | |
173 | dev_id = IXGBE_DEV_ID_82599_VF; | |
174 | break; | |
175 | case ixgbe_mac_X540: | |
176 | dev_id = IXGBE_DEV_ID_X540_VF; | |
177 | break; | |
178 | default: | |
179 | return false; | |
180 | } | |
181 | ||
182 | /* loop through all the VFs to see if we own any that are assigned */ | |
183 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL); | |
184 | while (vfdev) { | |
185 | /* if we don't own it we don't care */ | |
186 | if (vfdev->is_virtfn && vfdev->physfn == pdev) { | |
187 | /* if it is assigned we cannot release it */ | |
188 | if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) | |
189 | return true; | |
190 | } | |
191 | ||
192 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev); | |
193 | } | |
194 | ||
195 | return false; | |
196 | } | |
197 | ||
198 | #endif /* #ifdef CONFIG_PCI_IOV */ | |
c6bda30a GR |
199 | void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) |
200 | { | |
201 | struct ixgbe_hw *hw = &adapter->hw; | |
c6bda30a GR |
202 | u32 gpie; |
203 | u32 vmdctl; | |
c6bda30a | 204 | |
d773d131 AD |
205 | /* set num VFs to 0 to prevent access to vfinfo */ |
206 | adapter->num_vfs = 0; | |
207 | ||
208 | /* free VF control structures */ | |
209 | kfree(adapter->vfinfo); | |
210 | adapter->vfinfo = NULL; | |
211 | ||
212 | /* free macvlan list */ | |
213 | kfree(adapter->mv_list); | |
214 | adapter->mv_list = NULL; | |
215 | ||
99d74487 AD |
216 | /* if SR-IOV is already disabled then there is nothing to do */ |
217 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
218 | return; | |
219 | ||
c6bda30a | 220 | #ifdef CONFIG_PCI_IOV |
9297127b AD |
221 | /* |
222 | * If our VFs are assigned we cannot shut down SR-IOV | |
223 | * without causing issues, so just leave the hardware | |
224 | * available but disabled | |
225 | */ | |
226 | if (ixgbe_vfs_are_assigned(adapter)) { | |
227 | e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); | |
228 | return; | |
d47e12d6 | 229 | } |
c6bda30a GR |
230 | /* disable iov and allow time for transactions to clear */ |
231 | pci_disable_sriov(adapter->pdev); | |
232 | #endif | |
233 | ||
234 | /* turn off device IOV mode */ | |
73079ea0 | 235 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); |
c6bda30a GR |
236 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); |
237 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
238 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
239 | ||
240 | /* set default pool back to 0 */ | |
241 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
242 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
243 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
244 | IXGBE_WRITE_FLUSH(hw); | |
245 | ||
1d9c0bfd AD |
246 | /* Disable VMDq flag so device will be set in VM mode */ |
247 | if (adapter->ring_feature[RING_F_VMDQ].limit == 1) | |
248 | adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; | |
249 | adapter->ring_feature[RING_F_VMDQ].offset = 0; | |
250 | ||
c6bda30a GR |
251 | /* take a breather then clean up driver data */ |
252 | msleep(100); | |
253 | ||
c6bda30a GR |
254 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
255 | } | |
256 | ||
5d5b7c39 | 257 | static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, |
58a02bee | 258 | u32 *msgbuf, u32 vf) |
17367270 | 259 | { |
58a02bee AD |
260 | int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) |
261 | >> IXGBE_VT_MSGINFO_SHIFT; | |
262 | u16 *hash_list = (u16 *)&msgbuf[1]; | |
17367270 | 263 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; |
8a07a22d | 264 | struct ixgbe_hw *hw = &adapter->hw; |
17367270 | 265 | int i; |
8a07a22d GR |
266 | u32 vector_bit; |
267 | u32 vector_reg; | |
268 | u32 mta_reg; | |
17367270 GR |
269 | |
270 | /* only so many hash values supported */ | |
271 | entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); | |
272 | ||
273 | /* | |
274 | * salt away the number of multi cast addresses assigned | |
275 | * to this VF for later use to restore when the PF multi cast | |
276 | * list changes | |
277 | */ | |
278 | vfinfo->num_vf_mc_hashes = entries; | |
279 | ||
280 | /* | |
281 | * VFs are limited to using the MTA hash table for their multicast | |
282 | * addresses | |
283 | */ | |
284 | for (i = 0; i < entries; i++) { | |
e81a1ba8 | 285 | vfinfo->vf_mc_hashes[i] = hash_list[i]; |
17367270 GR |
286 | } |
287 | ||
8a07a22d GR |
288 | for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { |
289 | vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; | |
290 | vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; | |
291 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
292 | mta_reg |= (1 << vector_bit); | |
293 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
294 | } | |
17367270 GR |
295 | |
296 | return 0; | |
297 | } | |
298 | ||
a1cbb15c GR |
299 | static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) |
300 | { | |
301 | struct ixgbe_hw *hw = &adapter->hw; | |
302 | struct list_head *pos; | |
303 | struct vf_macvlans *entry; | |
304 | ||
305 | list_for_each(pos, &adapter->vf_mvs.l) { | |
306 | entry = list_entry(pos, struct vf_macvlans, l); | |
23677ce3 | 307 | if (!entry->free) |
a1cbb15c GR |
308 | hw->mac.ops.set_rar(hw, entry->rar_entry, |
309 | entry->vf_macvlan, | |
310 | entry->vf, IXGBE_RAH_AV); | |
311 | } | |
312 | } | |
313 | ||
17367270 GR |
314 | void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) |
315 | { | |
316 | struct ixgbe_hw *hw = &adapter->hw; | |
317 | struct vf_data_storage *vfinfo; | |
318 | int i, j; | |
319 | u32 vector_bit; | |
320 | u32 vector_reg; | |
321 | u32 mta_reg; | |
322 | ||
323 | for (i = 0; i < adapter->num_vfs; i++) { | |
324 | vfinfo = &adapter->vfinfo[i]; | |
325 | for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { | |
326 | hw->addr_ctrl.mta_in_use++; | |
327 | vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; | |
328 | vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; | |
329 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
330 | mta_reg |= (1 << vector_bit); | |
331 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
332 | } | |
333 | } | |
a1cbb15c GR |
334 | |
335 | /* Restore any VF macvlans */ | |
336 | ixgbe_restore_vf_macvlans(adapter); | |
17367270 GR |
337 | } |
338 | ||
5d5b7c39 ET |
339 | static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, |
340 | u32 vf) | |
17367270 | 341 | { |
b35d4d42 AD |
342 | /* VLAN 0 is a special case, don't allow it to be removed */ |
343 | if (!vid && !add) | |
344 | return 0; | |
345 | ||
17367270 GR |
346 | return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); |
347 | } | |
348 | ||
872844dd | 349 | static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) |
e9f98072 GR |
350 | { |
351 | struct ixgbe_hw *hw = &adapter->hw; | |
872844dd | 352 | int max_frame = msgbuf[1]; |
e9f98072 | 353 | u32 max_frs; |
e9f98072 | 354 | |
872844dd AD |
355 | /* |
356 | * For 82599EB we have to keep all PFs and VFs operating with | |
357 | * the same max_frame value in order to avoid sending an oversize | |
358 | * frame to a VF. In order to guarantee this is handled correctly | |
359 | * for all cases we have several special exceptions to take into | |
360 | * account before we can enable the VF for receive | |
361 | */ | |
362 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
363 | struct net_device *dev = adapter->netdev; | |
364 | int pf_max_frame = dev->mtu + ETH_HLEN; | |
365 | u32 reg_offset, vf_shift, vfre; | |
366 | s32 err = 0; | |
367 | ||
368 | #ifdef CONFIG_FCOE | |
369 | if (dev->features & NETIF_F_FCOE_MTU) | |
370 | pf_max_frame = max_t(int, pf_max_frame, | |
371 | IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
372 | ||
373 | #endif /* CONFIG_FCOE */ | |
374 | /* | |
375 | * If the PF or VF are running w/ jumbo frames enabled we | |
376 | * need to shut down the VF Rx path as we cannot support | |
377 | * jumbo frames on legacy VFs | |
378 | */ | |
379 | if ((pf_max_frame > ETH_FRAME_LEN) || | |
380 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) | |
381 | err = -EINVAL; | |
382 | ||
383 | /* determine VF receive enable location */ | |
384 | vf_shift = vf % 32; | |
385 | reg_offset = vf / 32; | |
386 | ||
387 | /* enable or disable receive depending on error */ | |
388 | vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); | |
389 | if (err) | |
390 | vfre &= ~(1 << vf_shift); | |
391 | else | |
392 | vfre |= 1 << vf_shift; | |
393 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); | |
394 | ||
395 | if (err) { | |
396 | e_err(drv, "VF max_frame %d out of range\n", max_frame); | |
397 | return err; | |
398 | } | |
399 | } | |
e9f98072 GR |
400 | |
401 | /* MTU < 68 is an error and causes problems on some kernels */ | |
872844dd AD |
402 | if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { |
403 | e_err(drv, "VF max_frame %d out of range\n", max_frame); | |
404 | return -EINVAL; | |
e9f98072 GR |
405 | } |
406 | ||
872844dd AD |
407 | /* pull current max frame size from hardware */ |
408 | max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); | |
409 | max_frs &= IXGBE_MHADD_MFS_MASK; | |
410 | max_frs >>= IXGBE_MHADD_MFS_SHIFT; | |
411 | ||
412 | if (max_frs < max_frame) { | |
413 | max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; | |
e9f98072 GR |
414 | IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); |
415 | } | |
416 | ||
872844dd AD |
417 | e_info(hw, "VF requests change max MTU to %d\n", max_frame); |
418 | ||
419 | return 0; | |
e9f98072 GR |
420 | } |
421 | ||
5d5b7c39 | 422 | static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) |
17367270 GR |
423 | { |
424 | u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); | |
f0412776 | 425 | vmolr |= (IXGBE_VMOLR_ROMPE | |
17367270 | 426 | IXGBE_VMOLR_BAM); |
f0412776 GR |
427 | if (aupe) |
428 | vmolr |= IXGBE_VMOLR_AUPE; | |
429 | else | |
430 | vmolr &= ~IXGBE_VMOLR_AUPE; | |
17367270 GR |
431 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); |
432 | } | |
433 | ||
107d3018 AD |
434 | static void ixgbe_set_vmvir(struct ixgbe_adapter *adapter, |
435 | u16 vid, u16 qos, u32 vf) | |
7f01648a GR |
436 | { |
437 | struct ixgbe_hw *hw = &adapter->hw; | |
107d3018 | 438 | u32 vmvir = vid | (qos << VLAN_PRIO_SHIFT) | IXGBE_VMVIR_VLANA_DEFAULT; |
7f01648a | 439 | |
107d3018 | 440 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), vmvir); |
7f01648a GR |
441 | } |
442 | ||
107d3018 AD |
443 | static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) |
444 | { | |
445 | struct ixgbe_hw *hw = &adapter->hw; | |
446 | ||
447 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); | |
448 | } | |
5d5b7c39 | 449 | static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
450 | { |
451 | struct ixgbe_hw *hw = &adapter->hw; | |
107d3018 | 452 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; |
2850062a | 453 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
107d3018 AD |
454 | u8 num_tcs = netdev_get_num_tc(adapter->netdev); |
455 | ||
456 | /* add PF assigned VLAN or VLAN 0 */ | |
457 | ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); | |
17367270 GR |
458 | |
459 | /* reset offloads to defaults */ | |
107d3018 AD |
460 | ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); |
461 | ||
462 | /* set outgoing tags for VFs */ | |
463 | if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { | |
464 | ixgbe_clear_vmvir(adapter, vf); | |
7f01648a | 465 | } else { |
107d3018 AD |
466 | if (vfinfo->pf_qos || !num_tcs) |
467 | ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, | |
468 | vfinfo->pf_qos, vf); | |
469 | else | |
470 | ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, | |
471 | adapter->default_up, vf); | |
472 | ||
473 | if (vfinfo->spoofchk_enabled) | |
474 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
7f01648a | 475 | } |
17367270 GR |
476 | |
477 | /* reset multicast table array for vf */ | |
478 | adapter->vfinfo[vf].num_vf_mc_hashes = 0; | |
479 | ||
480 | /* Flush and reset the mta with the new values */ | |
481 | ixgbe_set_rx_mode(adapter->netdev); | |
482 | ||
2850062a | 483 | hw->mac.ops.clear_rar(hw, rar_entry); |
374c65d6 AD |
484 | |
485 | /* reset VF api back to unknown */ | |
486 | adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; | |
17367270 GR |
487 | } |
488 | ||
5d5b7c39 ET |
489 | static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, |
490 | int vf, unsigned char *mac_addr) | |
17367270 GR |
491 | { |
492 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 493 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
17367270 GR |
494 | |
495 | memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6); | |
2850062a | 496 | hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); |
17367270 GR |
497 | |
498 | return 0; | |
499 | } | |
500 | ||
a1cbb15c GR |
501 | static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, |
502 | int vf, int index, unsigned char *mac_addr) | |
503 | { | |
504 | struct ixgbe_hw *hw = &adapter->hw; | |
505 | struct list_head *pos; | |
506 | struct vf_macvlans *entry; | |
507 | ||
508 | if (index <= 1) { | |
509 | list_for_each(pos, &adapter->vf_mvs.l) { | |
510 | entry = list_entry(pos, struct vf_macvlans, l); | |
511 | if (entry->vf == vf) { | |
512 | entry->vf = -1; | |
513 | entry->free = true; | |
514 | entry->is_macvlan = false; | |
515 | hw->mac.ops.clear_rar(hw, entry->rar_entry); | |
516 | } | |
517 | } | |
518 | } | |
519 | ||
520 | /* | |
521 | * If index was zero then we were asked to clear the uc list | |
522 | * for the VF. We're done. | |
523 | */ | |
524 | if (!index) | |
525 | return 0; | |
526 | ||
527 | entry = NULL; | |
528 | ||
529 | list_for_each(pos, &adapter->vf_mvs.l) { | |
530 | entry = list_entry(pos, struct vf_macvlans, l); | |
531 | if (entry->free) | |
532 | break; | |
533 | } | |
534 | ||
535 | /* | |
536 | * If we traversed the entire list and didn't find a free entry | |
537 | * then we're out of space on the RAR table. Also entry may | |
538 | * be NULL because the original memory allocation for the list | |
539 | * failed, which is not fatal but does mean we can't support | |
540 | * VF requests for MACVLAN because we couldn't allocate | |
541 | * memory for the list management required. | |
542 | */ | |
543 | if (!entry || !entry->free) | |
544 | return -ENOSPC; | |
545 | ||
546 | entry->free = false; | |
547 | entry->is_macvlan = true; | |
548 | entry->vf = vf; | |
549 | memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); | |
550 | ||
551 | hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); | |
552 | ||
553 | return 0; | |
554 | } | |
555 | ||
17367270 GR |
556 | int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) |
557 | { | |
558 | unsigned char vf_mac_addr[6]; | |
c60fbb00 | 559 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
17367270 GR |
560 | unsigned int vfn = (event_mask & 0x3f); |
561 | ||
562 | bool enable = ((event_mask & 0x10000000U) != 0); | |
563 | ||
564 | if (enable) { | |
7efd26d0 | 565 | eth_random_addr(vf_mac_addr); |
396e799c ET |
566 | e_info(probe, "IOV: VF %d is enabled MAC %pM\n", |
567 | vfn, vf_mac_addr); | |
17367270 GR |
568 | /* |
569 | * Store away the VF "permananet" MAC address, it will ask | |
570 | * for it later. | |
571 | */ | |
572 | memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); | |
573 | } | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
58a02bee | 578 | static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
579 | { |
580 | struct ixgbe_hw *hw = &adapter->hw; | |
58a02bee AD |
581 | unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; |
582 | u32 reg, msgbuf[4]; | |
17367270 | 583 | u32 reg_offset, vf_shift; |
58a02bee AD |
584 | u8 *addr = (u8 *)(&msgbuf[1]); |
585 | ||
586 | e_info(probe, "VF Reset msg received from vf %d\n", vf); | |
587 | ||
588 | /* reset the filters for the device */ | |
589 | ixgbe_vf_reset_event(adapter, vf); | |
590 | ||
591 | /* set vf mac address */ | |
592 | ixgbe_set_vf_mac(adapter, vf, vf_mac); | |
17367270 GR |
593 | |
594 | vf_shift = vf % 32; | |
595 | reg_offset = vf / 32; | |
596 | ||
58a02bee | 597 | /* enable transmit for vf */ |
17367270 | 598 | reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); |
872844dd | 599 | reg |= 1 << vf_shift; |
17367270 GR |
600 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); |
601 | ||
58a02bee | 602 | /* enable receive for vf */ |
17367270 | 603 | reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); |
872844dd AD |
604 | reg |= 1 << vf_shift; |
605 | /* | |
606 | * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. | |
607 | * For more info take a look at ixgbe_set_vf_lpe | |
608 | */ | |
609 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
610 | struct net_device *dev = adapter->netdev; | |
611 | int pf_max_frame = dev->mtu + ETH_HLEN; | |
612 | ||
613 | #ifdef CONFIG_FCOE | |
614 | if (dev->features & NETIF_F_FCOE_MTU) | |
615 | pf_max_frame = max_t(int, pf_max_frame, | |
616 | IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
617 | ||
618 | #endif /* CONFIG_FCOE */ | |
619 | if (pf_max_frame > ETH_FRAME_LEN) | |
620 | reg &= ~(1 << vf_shift); | |
621 | } | |
17367270 GR |
622 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); |
623 | ||
58a02bee AD |
624 | /* enable VF mailbox for further messages */ |
625 | adapter->vfinfo[vf].clear_to_send = true; | |
626 | ||
a985b6c3 GR |
627 | /* Enable counting of spoofed packets in the SSVPC register */ |
628 | reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); | |
629 | reg |= (1 << vf_shift); | |
630 | IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); | |
631 | ||
58a02bee AD |
632 | /* reply to reset with ack and vf mac address */ |
633 | msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK; | |
634 | memcpy(addr, vf_mac, ETH_ALEN); | |
635 | ||
636 | /* | |
637 | * Piggyback the multicast filter type so VF can compute the | |
638 | * correct vectors | |
639 | */ | |
640 | msgbuf[3] = hw->mac.mc_filter_type; | |
641 | ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); | |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
646 | static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, | |
647 | u32 *msgbuf, u32 vf) | |
648 | { | |
649 | u8 *new_mac = ((u8 *)(&msgbuf[1])); | |
650 | ||
651 | if (!is_valid_ether_addr(new_mac)) { | |
652 | e_warn(drv, "VF %d attempted to set invalid mac\n", vf); | |
653 | return -1; | |
654 | } | |
655 | ||
656 | if (adapter->vfinfo[vf].pf_set_mac && | |
657 | memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac, | |
658 | ETH_ALEN)) { | |
659 | e_warn(drv, | |
660 | "VF %d attempted to override administratively set MAC address\n" | |
661 | "Reload the VF driver to resume operations\n", | |
662 | vf); | |
663 | return -1; | |
664 | } | |
665 | ||
666 | return ixgbe_set_vf_mac(adapter, vf, new_mac); | |
667 | } | |
668 | ||
669 | static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, | |
670 | u32 *msgbuf, u32 vf) | |
671 | { | |
672 | struct ixgbe_hw *hw = &adapter->hw; | |
673 | int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; | |
674 | int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); | |
675 | int err; | |
107d3018 | 676 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
58a02bee | 677 | |
107d3018 | 678 | if (adapter->vfinfo[vf].pf_vlan || tcs) { |
58a02bee AD |
679 | e_warn(drv, |
680 | "VF %d attempted to override administratively set VLAN configuration\n" | |
681 | "Reload the VF driver to resume operations\n", | |
682 | vf); | |
683 | return -1; | |
684 | } | |
685 | ||
686 | if (add) | |
687 | adapter->vfinfo[vf].vlan_count++; | |
688 | else if (adapter->vfinfo[vf].vlan_count) | |
689 | adapter->vfinfo[vf].vlan_count--; | |
690 | ||
691 | err = ixgbe_set_vf_vlan(adapter, add, vid, vf); | |
692 | if (!err && adapter->vfinfo[vf].spoofchk_enabled) | |
693 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
694 | ||
695 | return err; | |
696 | } | |
697 | ||
698 | static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, | |
699 | u32 *msgbuf, u32 vf) | |
700 | { | |
701 | u8 *new_mac = ((u8 *)(&msgbuf[1])); | |
702 | int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> | |
703 | IXGBE_VT_MSGINFO_SHIFT; | |
704 | int err; | |
705 | ||
706 | if (adapter->vfinfo[vf].pf_set_mac && index > 0) { | |
707 | e_warn(drv, | |
708 | "VF %d requested MACVLAN filter but is administratively denied\n", | |
709 | vf); | |
710 | return -1; | |
711 | } | |
712 | ||
713 | /* An non-zero index indicates the VF is setting a filter */ | |
714 | if (index) { | |
715 | if (!is_valid_ether_addr(new_mac)) { | |
716 | e_warn(drv, "VF %d attempted to set invalid mac\n", vf); | |
717 | return -1; | |
718 | } | |
719 | ||
720 | /* | |
721 | * If the VF is allowed to set MAC filters then turn off | |
722 | * anti-spoofing to avoid false positives. | |
723 | */ | |
724 | if (adapter->vfinfo[vf].spoofchk_enabled) | |
725 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); | |
726 | } | |
727 | ||
728 | err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); | |
729 | if (err == -ENOSPC) | |
730 | e_warn(drv, | |
731 | "VF %d has requested a MACVLAN filter but there is no space for it\n", | |
732 | vf); | |
733 | return err; | |
17367270 GR |
734 | } |
735 | ||
374c65d6 AD |
736 | static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, |
737 | u32 *msgbuf, u32 vf) | |
738 | { | |
739 | int api = msgbuf[1]; | |
740 | ||
741 | switch (api) { | |
742 | case ixgbe_mbox_api_10: | |
743 | adapter->vfinfo[vf].vf_api = api; | |
744 | return 0; | |
745 | default: | |
746 | break; | |
747 | } | |
748 | ||
749 | e_info(drv, "VF %d requested invalid api version %u\n", vf, api); | |
750 | ||
751 | return -1; | |
752 | } | |
753 | ||
f591cd9d AD |
754 | static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, |
755 | u32 *msgbuf, u32 vf) | |
756 | { | |
757 | struct net_device *dev = adapter->netdev; | |
758 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; | |
759 | unsigned int default_tc = 0; | |
760 | u8 num_tcs = netdev_get_num_tc(dev); | |
761 | ||
762 | /* verify the PF is supporting the correct APIs */ | |
763 | switch (adapter->vfinfo[vf].vf_api) { | |
764 | case ixgbe_mbox_api_20: | |
765 | case ixgbe_mbox_api_11: | |
766 | break; | |
767 | default: | |
768 | return -1; | |
769 | } | |
770 | ||
771 | /* only allow 1 Tx queue for bandwidth limiting */ | |
772 | msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); | |
773 | msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); | |
774 | ||
775 | /* if TCs > 1 determine which TC belongs to default user priority */ | |
776 | if (num_tcs > 1) | |
777 | default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); | |
778 | ||
779 | /* notify VF of need for VLAN tag stripping, and correct queue */ | |
780 | if (num_tcs) | |
781 | msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; | |
782 | else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) | |
783 | msgbuf[IXGBE_VF_TRANS_VLAN] = 1; | |
784 | else | |
785 | msgbuf[IXGBE_VF_TRANS_VLAN] = 0; | |
786 | ||
787 | /* notify VF of default queue */ | |
788 | msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; | |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
17367270 GR |
793 | static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) |
794 | { | |
795 | u32 mbx_size = IXGBE_VFMAILBOX_SIZE; | |
c050999e | 796 | u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; |
17367270 GR |
797 | struct ixgbe_hw *hw = &adapter->hw; |
798 | s32 retval; | |
17367270 GR |
799 | |
800 | retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); | |
801 | ||
dcaccc82 | 802 | if (retval) { |
849c4542 | 803 | pr_err("Error receiving message from VF\n"); |
dcaccc82 AD |
804 | return retval; |
805 | } | |
17367270 GR |
806 | |
807 | /* this is a message we already processed, do nothing */ | |
808 | if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) | |
809 | return retval; | |
810 | ||
dcaccc82 AD |
811 | /* flush the ack before we write any messages back */ |
812 | IXGBE_WRITE_FLUSH(hw); | |
813 | ||
374c65d6 AD |
814 | if (msgbuf[0] == IXGBE_VF_RESET) |
815 | return ixgbe_vf_reset_msg(adapter, vf); | |
816 | ||
17367270 GR |
817 | /* |
818 | * until the vf completes a virtual function reset it should not be | |
819 | * allowed to start any configuration. | |
820 | */ | |
17367270 GR |
821 | if (!adapter->vfinfo[vf].clear_to_send) { |
822 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
823 | ixgbe_write_mbx(hw, msgbuf, 1, vf); | |
824 | return retval; | |
825 | } | |
826 | ||
827 | switch ((msgbuf[0] & 0xFFFF)) { | |
828 | case IXGBE_VF_SET_MAC_ADDR: | |
58a02bee | 829 | retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); |
17367270 GR |
830 | break; |
831 | case IXGBE_VF_SET_MULTICAST: | |
58a02bee AD |
832 | retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); |
833 | break; | |
834 | case IXGBE_VF_SET_VLAN: | |
835 | retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); | |
17367270 GR |
836 | break; |
837 | case IXGBE_VF_SET_LPE: | |
872844dd | 838 | retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); |
17367270 | 839 | break; |
a1cbb15c | 840 | case IXGBE_VF_SET_MACVLAN: |
58a02bee | 841 | retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); |
a1cbb15c | 842 | break; |
374c65d6 AD |
843 | case IXGBE_VF_API_NEGOTIATE: |
844 | retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); | |
845 | break; | |
f591cd9d AD |
846 | case IXGBE_VF_GET_QUEUES: |
847 | retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); | |
848 | break; | |
17367270 | 849 | default: |
396e799c | 850 | e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); |
17367270 GR |
851 | retval = IXGBE_ERR_MBX; |
852 | break; | |
853 | } | |
854 | ||
855 | /* notify the VF of the results of what it sent us */ | |
856 | if (retval) | |
857 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
858 | else | |
859 | msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; | |
860 | ||
861 | msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; | |
862 | ||
374c65d6 | 863 | ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); |
17367270 GR |
864 | |
865 | return retval; | |
866 | } | |
867 | ||
868 | static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) | |
869 | { | |
870 | struct ixgbe_hw *hw = &adapter->hw; | |
871 | u32 msg = IXGBE_VT_MSGTYPE_NACK; | |
872 | ||
873 | /* if device isn't clear to send it shouldn't be reading either */ | |
874 | if (!adapter->vfinfo[vf].clear_to_send) | |
875 | ixgbe_write_mbx(hw, &msg, 1, vf); | |
876 | } | |
877 | ||
878 | void ixgbe_msg_task(struct ixgbe_adapter *adapter) | |
879 | { | |
880 | struct ixgbe_hw *hw = &adapter->hw; | |
881 | u32 vf; | |
882 | ||
883 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
884 | /* process any reset requests */ | |
885 | if (!ixgbe_check_for_rst(hw, vf)) | |
886 | ixgbe_vf_reset_event(adapter, vf); | |
887 | ||
888 | /* process any messages pending */ | |
889 | if (!ixgbe_check_for_msg(hw, vf)) | |
890 | ixgbe_rcv_msg_from_vf(adapter, vf); | |
891 | ||
892 | /* process any acks */ | |
893 | if (!ixgbe_check_for_ack(hw, vf)) | |
894 | ixgbe_rcv_ack_from_vf(adapter, vf); | |
895 | } | |
896 | } | |
897 | ||
767081ad GR |
898 | void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) |
899 | { | |
900 | struct ixgbe_hw *hw = &adapter->hw; | |
901 | ||
902 | /* disable transmit and receive for all vfs */ | |
903 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); | |
904 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); | |
905 | ||
906 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); | |
907 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); | |
908 | } | |
909 | ||
910 | void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) | |
911 | { | |
912 | struct ixgbe_hw *hw = &adapter->hw; | |
913 | u32 ping; | |
914 | int i; | |
915 | ||
916 | for (i = 0 ; i < adapter->num_vfs; i++) { | |
917 | ping = IXGBE_PF_CONTROL_MSG; | |
918 | if (adapter->vfinfo[i].clear_to_send) | |
919 | ping |= IXGBE_VT_MSGTYPE_CTS; | |
920 | ixgbe_write_mbx(hw, &ping, 1, i); | |
921 | } | |
922 | } | |
923 | ||
7f01648a GR |
924 | int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
925 | { | |
926 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
927 | if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) | |
928 | return -EINVAL; | |
929 | adapter->vfinfo[vf].pf_set_mac = true; | |
930 | dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); | |
931 | dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" | |
932 | " change effective."); | |
933 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
934 | dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," | |
935 | " but the PF device is not up.\n"); | |
936 | dev_warn(&adapter->pdev->dev, "Bring the PF device up before" | |
937 | " attempting to use the VF device.\n"); | |
938 | } | |
939 | return ixgbe_set_vf_mac(adapter, vf, mac); | |
940 | } | |
941 | ||
942 | int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) | |
943 | { | |
944 | int err = 0; | |
945 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
a985b6c3 | 946 | struct ixgbe_hw *hw = &adapter->hw; |
7f01648a GR |
947 | |
948 | if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) | |
949 | return -EINVAL; | |
950 | if (vlan || qos) { | |
951 | err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); | |
952 | if (err) | |
953 | goto out; | |
107d3018 | 954 | ixgbe_set_vmvir(adapter, vlan, qos, vf); |
a985b6c3 | 955 | ixgbe_set_vmolr(hw, vf, false); |
de4c7f65 | 956 | if (adapter->vfinfo[vf].spoofchk_enabled) |
a1cbb15c | 957 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); |
de4c7f65 | 958 | adapter->vfinfo[vf].vlan_count++; |
7f01648a GR |
959 | adapter->vfinfo[vf].pf_vlan = vlan; |
960 | adapter->vfinfo[vf].pf_qos = qos; | |
961 | dev_info(&adapter->pdev->dev, | |
962 | "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); | |
963 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
964 | dev_warn(&adapter->pdev->dev, | |
965 | "The VF VLAN has been set," | |
966 | " but the PF device is not up.\n"); | |
967 | dev_warn(&adapter->pdev->dev, | |
968 | "Bring the PF device up before" | |
969 | " attempting to use the VF device.\n"); | |
970 | } | |
971 | } else { | |
972 | err = ixgbe_set_vf_vlan(adapter, false, | |
973 | adapter->vfinfo[vf].pf_vlan, vf); | |
107d3018 | 974 | ixgbe_clear_vmvir(adapter, vf); |
a985b6c3 GR |
975 | ixgbe_set_vmolr(hw, vf, true); |
976 | hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); | |
de4c7f65 GR |
977 | if (adapter->vfinfo[vf].vlan_count) |
978 | adapter->vfinfo[vf].vlan_count--; | |
7f01648a GR |
979 | adapter->vfinfo[vf].pf_vlan = 0; |
980 | adapter->vfinfo[vf].pf_qos = 0; | |
981 | } | |
982 | out: | |
983 | return err; | |
984 | } | |
985 | ||
9f66d3ee | 986 | static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) |
ff4ab206 | 987 | { |
9f66d3ee | 988 | switch (adapter->link_speed) { |
ff4ab206 LL |
989 | case IXGBE_LINK_SPEED_100_FULL: |
990 | return 100; | |
991 | case IXGBE_LINK_SPEED_1GB_FULL: | |
992 | return 1000; | |
993 | case IXGBE_LINK_SPEED_10GB_FULL: | |
994 | return 10000; | |
995 | default: | |
996 | return 0; | |
997 | } | |
998 | } | |
999 | ||
9f66d3ee | 1000 | static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) |
ff4ab206 | 1001 | { |
9f66d3ee AD |
1002 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; |
1003 | struct ixgbe_hw *hw = &adapter->hw; | |
1004 | u32 bcnrc_val = 0; | |
1005 | u16 queue, queues_per_pool; | |
1006 | u16 tx_rate = adapter->vfinfo[vf].tx_rate; | |
1007 | ||
1008 | if (tx_rate) { | |
1009 | /* start with base link speed value */ | |
1010 | bcnrc_val = adapter->vf_rate_link_speed; | |
ff4ab206 | 1011 | |
ff4ab206 | 1012 | /* Calculate the rate factor values to set */ |
9f66d3ee AD |
1013 | bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; |
1014 | bcnrc_val /= tx_rate; | |
1015 | ||
1016 | /* clear everything but the rate factor */ | |
1017 | bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | | |
1018 | IXGBE_RTTBCNRC_RF_DEC_MASK; | |
1019 | ||
1020 | /* enable the rate scheduler */ | |
1021 | bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; | |
ff4ab206 LL |
1022 | } |
1023 | ||
7555e83d LL |
1024 | /* |
1025 | * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM | |
1026 | * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported | |
1027 | * and 0x004 otherwise. | |
1028 | */ | |
1029 | switch (hw->mac.type) { | |
1030 | case ixgbe_mac_82599EB: | |
1031 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); | |
1032 | break; | |
1033 | case ixgbe_mac_X540: | |
1034 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); | |
1035 | break; | |
1036 | default: | |
1037 | break; | |
1038 | } | |
1039 | ||
9f66d3ee AD |
1040 | /* determine how many queues per pool based on VMDq mask */ |
1041 | queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); | |
1042 | ||
1043 | /* write value for all Tx queues belonging to VF */ | |
1044 | for (queue = 0; queue < queues_per_pool; queue++) { | |
1045 | unsigned int reg_idx = (vf * queues_per_pool) + queue; | |
1046 | ||
1047 | IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); | |
1048 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); | |
1049 | } | |
ff4ab206 LL |
1050 | } |
1051 | ||
1052 | void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) | |
1053 | { | |
9f66d3ee | 1054 | int i; |
ff4ab206 LL |
1055 | |
1056 | /* VF Tx rate limit was not set */ | |
9f66d3ee | 1057 | if (!adapter->vf_rate_link_speed) |
ff4ab206 LL |
1058 | return; |
1059 | ||
9f66d3ee | 1060 | if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { |
ff4ab206 LL |
1061 | adapter->vf_rate_link_speed = 0; |
1062 | dev_info(&adapter->pdev->dev, | |
9f66d3ee | 1063 | "Link speed has been changed. VF Transmit rate is disabled\n"); |
ff4ab206 LL |
1064 | } |
1065 | ||
1066 | for (i = 0; i < adapter->num_vfs; i++) { | |
9f66d3ee | 1067 | if (!adapter->vf_rate_link_speed) |
ff4ab206 LL |
1068 | adapter->vfinfo[i].tx_rate = 0; |
1069 | ||
9f66d3ee | 1070 | ixgbe_set_vf_rate_limit(adapter, i); |
ff4ab206 LL |
1071 | } |
1072 | } | |
1073 | ||
7f01648a GR |
1074 | int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) |
1075 | { | |
ff4ab206 | 1076 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
9f66d3ee AD |
1077 | int link_speed; |
1078 | ||
1079 | /* verify VF is active */ | |
1080 | if (vf >= adapter->num_vfs) | |
1081 | return -EINVAL; | |
1082 | ||
1083 | /* verify link is up */ | |
1084 | if (!adapter->link_up) | |
1085 | return -EINVAL; | |
1086 | ||
1087 | /* verify we are linked at 10Gbps */ | |
1088 | link_speed = ixgbe_link_mbps(adapter); | |
1089 | if (link_speed != 10000) | |
1090 | return -EINVAL; | |
ff4ab206 | 1091 | |
9f66d3ee AD |
1092 | /* rate limit cannot be less than 10Mbs or greater than link speed */ |
1093 | if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed))) | |
ff4ab206 LL |
1094 | return -EINVAL; |
1095 | ||
9f66d3ee AD |
1096 | /* store values */ |
1097 | adapter->vf_rate_link_speed = link_speed; | |
1098 | adapter->vfinfo[vf].tx_rate = tx_rate; | |
1099 | ||
1100 | /* update hardware configuration */ | |
1101 | ixgbe_set_vf_rate_limit(adapter, vf); | |
ff4ab206 LL |
1102 | |
1103 | return 0; | |
7f01648a GR |
1104 | } |
1105 | ||
de4c7f65 GR |
1106 | int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) |
1107 | { | |
1108 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1109 | int vf_target_reg = vf >> 3; | |
1110 | int vf_target_shift = vf % 8; | |
1111 | struct ixgbe_hw *hw = &adapter->hw; | |
1112 | u32 regval; | |
1113 | ||
1114 | adapter->vfinfo[vf].spoofchk_enabled = setting; | |
1115 | ||
1116 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
1117 | regval &= ~(1 << vf_target_shift); | |
1118 | regval |= (setting << vf_target_shift); | |
1119 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
1120 | ||
1121 | if (adapter->vfinfo[vf].vlan_count) { | |
1122 | vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; | |
1123 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
1124 | regval &= ~(1 << vf_target_shift); | |
1125 | regval |= (setting << vf_target_shift); | |
1126 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
1127 | } | |
1128 | ||
1129 | return 0; | |
1130 | } | |
1131 | ||
7f01648a GR |
1132 | int ixgbe_ndo_get_vf_config(struct net_device *netdev, |
1133 | int vf, struct ifla_vf_info *ivi) | |
1134 | { | |
1135 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1136 | if (vf >= adapter->num_vfs) | |
1137 | return -EINVAL; | |
1138 | ivi->vf = vf; | |
1139 | memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); | |
ff4ab206 | 1140 | ivi->tx_rate = adapter->vfinfo[vf].tx_rate; |
7f01648a GR |
1141 | ivi->vlan = adapter->vfinfo[vf].pf_vlan; |
1142 | ivi->qos = adapter->vfinfo[vf].pf_qos; | |
de4c7f65 | 1143 | ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; |
7f01648a GR |
1144 | return 0; |
1145 | } |