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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 | 131 | |
66dcfd75 GR |
132 | /* If there are pre-existing VFs then we have to force |
133 | * use of that many - over ride any module parameter value. | |
134 | * This may result from the user unloading the PF driver | |
135 | * while VFs were assigned to guest VMs or because the VFs | |
136 | * have been created via the new PCI SR-IOV sysfs interface. | |
137 | */ | |
138 | if (pre_existing_vfs) { | |
139 | adapter->num_vfs = pre_existing_vfs; | |
140 | dev_warn(&adapter->pdev->dev, | |
141 | "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); | |
142 | } else { | |
143 | int err; | |
144 | /* | |
145 | * The 82599 supports up to 64 VFs per physical function | |
146 | * but this implementation limits allocation to 63 so that | |
147 | * basic networking resources are still available to the | |
148 | * physical function. If the user requests greater thn | |
149 | * 63 VFs then it is an error - reset to default of zero. | |
150 | */ | |
dcc23e3a | 151 | adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, IXGBE_MAX_VFS_DRV_LIMIT); |
66dcfd75 GR |
152 | |
153 | err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); | |
154 | if (err) { | |
155 | e_err(probe, "Failed to enable PCI sriov: %d\n", err); | |
156 | adapter->num_vfs = 0; | |
157 | return; | |
158 | } | |
c6bda30a GR |
159 | } |
160 | ||
66dcfd75 GR |
161 | if (!__ixgbe_enable_sriov(adapter)) |
162 | return; | |
163 | ||
164 | /* If we have gotten to this point then there is no memory available | |
165 | * to manage the VF devices - print message and bail. | |
166 | */ | |
c6bda30a GR |
167 | e_err(probe, "Unable to allocate memory for VF Data Storage - " |
168 | "SRIOV disabled\n"); | |
99d74487 | 169 | ixgbe_disable_sriov(adapter); |
c6bda30a | 170 | } |
c6bda30a | 171 | |
9297127b | 172 | #endif /* #ifdef CONFIG_PCI_IOV */ |
da36b647 | 173 | int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) |
c6bda30a GR |
174 | { |
175 | struct ixgbe_hw *hw = &adapter->hw; | |
c6bda30a GR |
176 | u32 gpie; |
177 | u32 vmdctl; | |
da36b647 | 178 | int rss; |
c6bda30a | 179 | |
d773d131 AD |
180 | /* set num VFs to 0 to prevent access to vfinfo */ |
181 | adapter->num_vfs = 0; | |
182 | ||
183 | /* free VF control structures */ | |
184 | kfree(adapter->vfinfo); | |
185 | adapter->vfinfo = NULL; | |
186 | ||
187 | /* free macvlan list */ | |
188 | kfree(adapter->mv_list); | |
189 | adapter->mv_list = NULL; | |
190 | ||
99d74487 AD |
191 | /* if SR-IOV is already disabled then there is nothing to do */ |
192 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
da36b647 | 193 | return 0; |
99d74487 | 194 | |
c6bda30a | 195 | #ifdef CONFIG_PCI_IOV |
9297127b AD |
196 | /* |
197 | * If our VFs are assigned we cannot shut down SR-IOV | |
198 | * without causing issues, so just leave the hardware | |
199 | * available but disabled | |
200 | */ | |
e507d0cd | 201 | if (pci_vfs_assigned(adapter->pdev)) { |
9297127b | 202 | e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); |
da36b647 | 203 | return -EPERM; |
d47e12d6 | 204 | } |
c6bda30a GR |
205 | /* disable iov and allow time for transactions to clear */ |
206 | pci_disable_sriov(adapter->pdev); | |
207 | #endif | |
208 | ||
209 | /* turn off device IOV mode */ | |
73079ea0 | 210 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); |
c6bda30a GR |
211 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); |
212 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
213 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
214 | ||
215 | /* set default pool back to 0 */ | |
216 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
217 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
218 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
219 | IXGBE_WRITE_FLUSH(hw); | |
220 | ||
1d9c0bfd | 221 | /* Disable VMDq flag so device will be set in VM mode */ |
2a47fa45 | 222 | if (adapter->ring_feature[RING_F_VMDQ].limit == 1) { |
1d9c0bfd | 223 | adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; |
2a47fa45 JF |
224 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
225 | rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); | |
226 | } else { | |
227 | rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus()); | |
228 | } | |
1d9c0bfd | 229 | |
2a47fa45 | 230 | adapter->ring_feature[RING_F_VMDQ].offset = 0; |
da36b647 GR |
231 | adapter->ring_feature[RING_F_RSS].limit = rss; |
232 | ||
c6bda30a GR |
233 | /* take a breather then clean up driver data */ |
234 | msleep(100); | |
da36b647 GR |
235 | return 0; |
236 | } | |
237 | ||
238 | static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) | |
239 | { | |
240 | #ifdef CONFIG_PCI_IOV | |
241 | struct ixgbe_adapter *adapter = pci_get_drvdata(dev); | |
242 | int err = 0; | |
243 | int i; | |
244 | int pre_existing_vfs = pci_num_vf(dev); | |
245 | ||
246 | if (pre_existing_vfs && pre_existing_vfs != num_vfs) | |
247 | err = ixgbe_disable_sriov(adapter); | |
248 | else if (pre_existing_vfs && pre_existing_vfs == num_vfs) | |
249 | goto out; | |
250 | ||
251 | if (err) | |
252 | goto err_out; | |
253 | ||
254 | /* While the SR-IOV capability structure reports total VFs to be | |
255 | * 64 we limit the actual number that can be allocated to 63 so | |
256 | * that some transmit/receive resources can be reserved to the | |
257 | * PF. The PCI bus driver already checks for other values out of | |
258 | * range. | |
259 | */ | |
dcc23e3a | 260 | if (num_vfs > IXGBE_MAX_VFS_DRV_LIMIT) { |
da36b647 GR |
261 | err = -EPERM; |
262 | goto err_out; | |
263 | } | |
264 | ||
265 | adapter->num_vfs = num_vfs; | |
266 | ||
267 | err = __ixgbe_enable_sriov(adapter); | |
268 | if (err) | |
269 | goto err_out; | |
270 | ||
271 | for (i = 0; i < adapter->num_vfs; i++) | |
272 | ixgbe_vf_configuration(dev, (i | 0x10000000)); | |
273 | ||
274 | err = pci_enable_sriov(dev, num_vfs); | |
275 | if (err) { | |
276 | e_dev_warn("Failed to enable PCI sriov: %d\n", err); | |
277 | goto err_out; | |
278 | } | |
279 | ixgbe_sriov_reinit(adapter); | |
280 | ||
281 | out: | |
282 | return num_vfs; | |
283 | ||
284 | err_out: | |
285 | return err; | |
286 | #endif | |
287 | return 0; | |
288 | } | |
289 | ||
290 | static int ixgbe_pci_sriov_disable(struct pci_dev *dev) | |
291 | { | |
292 | struct ixgbe_adapter *adapter = pci_get_drvdata(dev); | |
293 | int err; | |
8f48f5bc | 294 | #ifdef CONFIG_PCI_IOV |
da36b647 | 295 | u32 current_flags = adapter->flags; |
8f48f5bc | 296 | #endif |
da36b647 GR |
297 | |
298 | err = ixgbe_disable_sriov(adapter); | |
299 | ||
300 | /* Only reinit if no error and state changed */ | |
da36b647 | 301 | #ifdef CONFIG_PCI_IOV |
2a47fa45 | 302 | if (!err && current_flags != adapter->flags) |
da36b647 GR |
303 | ixgbe_sriov_reinit(adapter); |
304 | #endif | |
da36b647 GR |
305 | |
306 | return err; | |
307 | } | |
308 | ||
309 | int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) | |
310 | { | |
311 | if (num_vfs == 0) | |
312 | return ixgbe_pci_sriov_disable(dev); | |
313 | else | |
314 | return ixgbe_pci_sriov_enable(dev, num_vfs); | |
c6bda30a GR |
315 | } |
316 | ||
5d5b7c39 | 317 | static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, |
58a02bee | 318 | u32 *msgbuf, u32 vf) |
17367270 | 319 | { |
58a02bee AD |
320 | int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) |
321 | >> IXGBE_VT_MSGINFO_SHIFT; | |
322 | u16 *hash_list = (u16 *)&msgbuf[1]; | |
17367270 | 323 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; |
8a07a22d | 324 | struct ixgbe_hw *hw = &adapter->hw; |
17367270 | 325 | int i; |
8a07a22d GR |
326 | u32 vector_bit; |
327 | u32 vector_reg; | |
328 | u32 mta_reg; | |
17367270 GR |
329 | |
330 | /* only so many hash values supported */ | |
331 | entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); | |
332 | ||
333 | /* | |
334 | * salt away the number of multi cast addresses assigned | |
335 | * to this VF for later use to restore when the PF multi cast | |
336 | * list changes | |
337 | */ | |
338 | vfinfo->num_vf_mc_hashes = entries; | |
339 | ||
340 | /* | |
341 | * VFs are limited to using the MTA hash table for their multicast | |
342 | * addresses | |
343 | */ | |
344 | for (i = 0; i < entries; i++) { | |
e81a1ba8 | 345 | vfinfo->vf_mc_hashes[i] = hash_list[i]; |
17367270 GR |
346 | } |
347 | ||
8a07a22d GR |
348 | for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { |
349 | vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; | |
350 | vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; | |
351 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
352 | mta_reg |= (1 << vector_bit); | |
353 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
354 | } | |
17367270 GR |
355 | |
356 | return 0; | |
357 | } | |
358 | ||
a1cbb15c GR |
359 | static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) |
360 | { | |
361 | struct ixgbe_hw *hw = &adapter->hw; | |
362 | struct list_head *pos; | |
363 | struct vf_macvlans *entry; | |
364 | ||
365 | list_for_each(pos, &adapter->vf_mvs.l) { | |
366 | entry = list_entry(pos, struct vf_macvlans, l); | |
23677ce3 | 367 | if (!entry->free) |
a1cbb15c GR |
368 | hw->mac.ops.set_rar(hw, entry->rar_entry, |
369 | entry->vf_macvlan, | |
370 | entry->vf, IXGBE_RAH_AV); | |
371 | } | |
372 | } | |
373 | ||
17367270 GR |
374 | void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) |
375 | { | |
376 | struct ixgbe_hw *hw = &adapter->hw; | |
377 | struct vf_data_storage *vfinfo; | |
378 | int i, j; | |
379 | u32 vector_bit; | |
380 | u32 vector_reg; | |
381 | u32 mta_reg; | |
382 | ||
383 | for (i = 0; i < adapter->num_vfs; i++) { | |
384 | vfinfo = &adapter->vfinfo[i]; | |
385 | for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { | |
386 | hw->addr_ctrl.mta_in_use++; | |
387 | vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; | |
388 | vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; | |
389 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
390 | mta_reg |= (1 << vector_bit); | |
391 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
392 | } | |
393 | } | |
a1cbb15c GR |
394 | |
395 | /* Restore any VF macvlans */ | |
396 | ixgbe_restore_vf_macvlans(adapter); | |
17367270 GR |
397 | } |
398 | ||
5d5b7c39 ET |
399 | static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, |
400 | u32 vf) | |
17367270 | 401 | { |
b35d4d42 AD |
402 | /* VLAN 0 is a special case, don't allow it to be removed */ |
403 | if (!vid && !add) | |
404 | return 0; | |
405 | ||
17367270 GR |
406 | return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); |
407 | } | |
408 | ||
872844dd | 409 | static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) |
e9f98072 GR |
410 | { |
411 | struct ixgbe_hw *hw = &adapter->hw; | |
872844dd | 412 | int max_frame = msgbuf[1]; |
e9f98072 | 413 | u32 max_frs; |
e9f98072 | 414 | |
872844dd AD |
415 | /* |
416 | * For 82599EB we have to keep all PFs and VFs operating with | |
417 | * the same max_frame value in order to avoid sending an oversize | |
418 | * frame to a VF. In order to guarantee this is handled correctly | |
419 | * for all cases we have several special exceptions to take into | |
420 | * account before we can enable the VF for receive | |
421 | */ | |
422 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
423 | struct net_device *dev = adapter->netdev; | |
424 | int pf_max_frame = dev->mtu + ETH_HLEN; | |
425 | u32 reg_offset, vf_shift, vfre; | |
426 | s32 err = 0; | |
427 | ||
428 | #ifdef CONFIG_FCOE | |
429 | if (dev->features & NETIF_F_FCOE_MTU) | |
430 | pf_max_frame = max_t(int, pf_max_frame, | |
431 | IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
432 | ||
433 | #endif /* CONFIG_FCOE */ | |
bffb3bc9 AD |
434 | switch (adapter->vfinfo[vf].vf_api) { |
435 | case ixgbe_mbox_api_11: | |
436 | /* | |
437 | * Version 1.1 supports jumbo frames on VFs if PF has | |
438 | * jumbo frames enabled which means legacy VFs are | |
439 | * disabled | |
440 | */ | |
441 | if (pf_max_frame > ETH_FRAME_LEN) | |
442 | break; | |
443 | default: | |
444 | /* | |
445 | * If the PF or VF are running w/ jumbo frames enabled | |
446 | * we need to shut down the VF Rx path as we cannot | |
447 | * support jumbo frames on legacy VFs | |
448 | */ | |
449 | if ((pf_max_frame > ETH_FRAME_LEN) || | |
450 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) | |
451 | err = -EINVAL; | |
452 | break; | |
453 | } | |
872844dd AD |
454 | |
455 | /* determine VF receive enable location */ | |
456 | vf_shift = vf % 32; | |
457 | reg_offset = vf / 32; | |
458 | ||
459 | /* enable or disable receive depending on error */ | |
460 | vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); | |
461 | if (err) | |
462 | vfre &= ~(1 << vf_shift); | |
463 | else | |
464 | vfre |= 1 << vf_shift; | |
465 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); | |
466 | ||
467 | if (err) { | |
468 | e_err(drv, "VF max_frame %d out of range\n", max_frame); | |
469 | return err; | |
470 | } | |
471 | } | |
e9f98072 GR |
472 | |
473 | /* MTU < 68 is an error and causes problems on some kernels */ | |
872844dd AD |
474 | if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { |
475 | e_err(drv, "VF max_frame %d out of range\n", max_frame); | |
476 | return -EINVAL; | |
e9f98072 GR |
477 | } |
478 | ||
872844dd AD |
479 | /* pull current max frame size from hardware */ |
480 | max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); | |
481 | max_frs &= IXGBE_MHADD_MFS_MASK; | |
482 | max_frs >>= IXGBE_MHADD_MFS_SHIFT; | |
483 | ||
484 | if (max_frs < max_frame) { | |
485 | max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; | |
e9f98072 GR |
486 | IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); |
487 | } | |
488 | ||
872844dd AD |
489 | e_info(hw, "VF requests change max MTU to %d\n", max_frame); |
490 | ||
491 | return 0; | |
e9f98072 GR |
492 | } |
493 | ||
5d5b7c39 | 494 | static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) |
17367270 GR |
495 | { |
496 | u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); | |
f0412776 | 497 | vmolr |= (IXGBE_VMOLR_ROMPE | |
17367270 | 498 | IXGBE_VMOLR_BAM); |
f0412776 GR |
499 | if (aupe) |
500 | vmolr |= IXGBE_VMOLR_AUPE; | |
501 | else | |
502 | vmolr &= ~IXGBE_VMOLR_AUPE; | |
17367270 GR |
503 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); |
504 | } | |
505 | ||
107d3018 AD |
506 | static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) |
507 | { | |
508 | struct ixgbe_hw *hw = &adapter->hw; | |
509 | ||
510 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); | |
511 | } | |
5d5b7c39 | 512 | static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
513 | { |
514 | struct ixgbe_hw *hw = &adapter->hw; | |
107d3018 | 515 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; |
2850062a | 516 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
107d3018 AD |
517 | u8 num_tcs = netdev_get_num_tc(adapter->netdev); |
518 | ||
519 | /* add PF assigned VLAN or VLAN 0 */ | |
520 | ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); | |
17367270 GR |
521 | |
522 | /* reset offloads to defaults */ | |
107d3018 AD |
523 | ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); |
524 | ||
525 | /* set outgoing tags for VFs */ | |
526 | if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { | |
527 | ixgbe_clear_vmvir(adapter, vf); | |
7f01648a | 528 | } else { |
107d3018 AD |
529 | if (vfinfo->pf_qos || !num_tcs) |
530 | ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, | |
531 | vfinfo->pf_qos, vf); | |
532 | else | |
533 | ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, | |
534 | adapter->default_up, vf); | |
535 | ||
536 | if (vfinfo->spoofchk_enabled) | |
537 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
7f01648a | 538 | } |
17367270 GR |
539 | |
540 | /* reset multicast table array for vf */ | |
541 | adapter->vfinfo[vf].num_vf_mc_hashes = 0; | |
542 | ||
543 | /* Flush and reset the mta with the new values */ | |
544 | ixgbe_set_rx_mode(adapter->netdev); | |
545 | ||
2850062a | 546 | hw->mac.ops.clear_rar(hw, rar_entry); |
374c65d6 AD |
547 | |
548 | /* reset VF api back to unknown */ | |
549 | adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; | |
17367270 GR |
550 | } |
551 | ||
5d5b7c39 ET |
552 | static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, |
553 | int vf, unsigned char *mac_addr) | |
17367270 GR |
554 | { |
555 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 556 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
17367270 | 557 | |
d458cdf7 | 558 | memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN); |
2850062a | 559 | hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); |
17367270 GR |
560 | |
561 | return 0; | |
562 | } | |
563 | ||
a1cbb15c GR |
564 | static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, |
565 | int vf, int index, unsigned char *mac_addr) | |
566 | { | |
567 | struct ixgbe_hw *hw = &adapter->hw; | |
568 | struct list_head *pos; | |
569 | struct vf_macvlans *entry; | |
570 | ||
571 | if (index <= 1) { | |
572 | list_for_each(pos, &adapter->vf_mvs.l) { | |
573 | entry = list_entry(pos, struct vf_macvlans, l); | |
574 | if (entry->vf == vf) { | |
575 | entry->vf = -1; | |
576 | entry->free = true; | |
577 | entry->is_macvlan = false; | |
578 | hw->mac.ops.clear_rar(hw, entry->rar_entry); | |
579 | } | |
580 | } | |
581 | } | |
582 | ||
583 | /* | |
584 | * If index was zero then we were asked to clear the uc list | |
585 | * for the VF. We're done. | |
586 | */ | |
587 | if (!index) | |
588 | return 0; | |
589 | ||
590 | entry = NULL; | |
591 | ||
592 | list_for_each(pos, &adapter->vf_mvs.l) { | |
593 | entry = list_entry(pos, struct vf_macvlans, l); | |
594 | if (entry->free) | |
595 | break; | |
596 | } | |
597 | ||
598 | /* | |
599 | * If we traversed the entire list and didn't find a free entry | |
600 | * then we're out of space on the RAR table. Also entry may | |
601 | * be NULL because the original memory allocation for the list | |
602 | * failed, which is not fatal but does mean we can't support | |
603 | * VF requests for MACVLAN because we couldn't allocate | |
604 | * memory for the list management required. | |
605 | */ | |
606 | if (!entry || !entry->free) | |
607 | return -ENOSPC; | |
608 | ||
609 | entry->free = false; | |
610 | entry->is_macvlan = true; | |
611 | entry->vf = vf; | |
612 | memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); | |
613 | ||
614 | hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); | |
615 | ||
616 | return 0; | |
617 | } | |
618 | ||
17367270 GR |
619 | int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) |
620 | { | |
c60fbb00 | 621 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
17367270 GR |
622 | unsigned int vfn = (event_mask & 0x3f); |
623 | ||
624 | bool enable = ((event_mask & 0x10000000U) != 0); | |
625 | ||
d458cdf7 JP |
626 | if (enable) |
627 | eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses); | |
17367270 GR |
628 | |
629 | return 0; | |
630 | } | |
631 | ||
58a02bee | 632 | static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) |
17367270 | 633 | { |
87397379 | 634 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; |
17367270 | 635 | struct ixgbe_hw *hw = &adapter->hw; |
58a02bee | 636 | unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; |
b08e1ed9 ET |
637 | u32 reg, reg_offset, vf_shift; |
638 | u32 msgbuf[4] = {0, 0, 0, 0}; | |
58a02bee | 639 | u8 *addr = (u8 *)(&msgbuf[1]); |
87397379 AD |
640 | u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); |
641 | int i; | |
58a02bee AD |
642 | |
643 | e_info(probe, "VF Reset msg received from vf %d\n", vf); | |
644 | ||
645 | /* reset the filters for the device */ | |
646 | ixgbe_vf_reset_event(adapter, vf); | |
647 | ||
648 | /* set vf mac address */ | |
35055928 GR |
649 | if (!is_zero_ether_addr(vf_mac)) |
650 | ixgbe_set_vf_mac(adapter, vf, vf_mac); | |
17367270 GR |
651 | |
652 | vf_shift = vf % 32; | |
653 | reg_offset = vf / 32; | |
654 | ||
58a02bee | 655 | /* enable transmit for vf */ |
17367270 | 656 | reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); |
872844dd | 657 | reg |= 1 << vf_shift; |
17367270 GR |
658 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); |
659 | ||
87397379 AD |
660 | /* force drop enable for all VF Rx queues */ |
661 | for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) { | |
662 | /* flush previous write */ | |
663 | IXGBE_WRITE_FLUSH(hw); | |
664 | ||
665 | /* indicate to hardware that we want to set drop enable */ | |
666 | reg = IXGBE_QDE_WRITE | IXGBE_QDE_ENABLE; | |
667 | reg |= i << IXGBE_QDE_IDX_SHIFT; | |
668 | IXGBE_WRITE_REG(hw, IXGBE_QDE, reg); | |
669 | } | |
670 | ||
58a02bee | 671 | /* enable receive for vf */ |
17367270 | 672 | reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); |
872844dd AD |
673 | reg |= 1 << vf_shift; |
674 | /* | |
675 | * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. | |
676 | * For more info take a look at ixgbe_set_vf_lpe | |
677 | */ | |
678 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
679 | struct net_device *dev = adapter->netdev; | |
680 | int pf_max_frame = dev->mtu + ETH_HLEN; | |
681 | ||
682 | #ifdef CONFIG_FCOE | |
683 | if (dev->features & NETIF_F_FCOE_MTU) | |
684 | pf_max_frame = max_t(int, pf_max_frame, | |
685 | IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
686 | ||
687 | #endif /* CONFIG_FCOE */ | |
688 | if (pf_max_frame > ETH_FRAME_LEN) | |
689 | reg &= ~(1 << vf_shift); | |
690 | } | |
17367270 GR |
691 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); |
692 | ||
58a02bee AD |
693 | /* enable VF mailbox for further messages */ |
694 | adapter->vfinfo[vf].clear_to_send = true; | |
695 | ||
a985b6c3 GR |
696 | /* Enable counting of spoofed packets in the SSVPC register */ |
697 | reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); | |
698 | reg |= (1 << vf_shift); | |
699 | IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); | |
700 | ||
dbf231af AD |
701 | /* |
702 | * Reset the VFs TDWBAL and TDWBAH registers | |
703 | * which are not cleared by an FLR | |
704 | */ | |
705 | for (i = 0; i < q_per_pool; i++) { | |
706 | IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0); | |
707 | IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0); | |
708 | } | |
709 | ||
58a02bee | 710 | /* reply to reset with ack and vf mac address */ |
35055928 GR |
711 | msgbuf[0] = IXGBE_VF_RESET; |
712 | if (!is_zero_ether_addr(vf_mac)) { | |
713 | msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; | |
714 | memcpy(addr, vf_mac, ETH_ALEN); | |
715 | } else { | |
716 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
717 | dev_warn(&adapter->pdev->dev, | |
718 | "VF %d has no MAC address assigned, you may have to assign one manually\n", | |
719 | vf); | |
720 | } | |
58a02bee AD |
721 | |
722 | /* | |
723 | * Piggyback the multicast filter type so VF can compute the | |
724 | * correct vectors | |
725 | */ | |
726 | msgbuf[3] = hw->mac.mc_filter_type; | |
727 | ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
732 | static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, | |
733 | u32 *msgbuf, u32 vf) | |
734 | { | |
735 | u8 *new_mac = ((u8 *)(&msgbuf[1])); | |
736 | ||
737 | if (!is_valid_ether_addr(new_mac)) { | |
738 | e_warn(drv, "VF %d attempted to set invalid mac\n", vf); | |
739 | return -1; | |
740 | } | |
741 | ||
742 | if (adapter->vfinfo[vf].pf_set_mac && | |
4012dda3 | 743 | !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) { |
58a02bee AD |
744 | e_warn(drv, |
745 | "VF %d attempted to override administratively set MAC address\n" | |
746 | "Reload the VF driver to resume operations\n", | |
747 | vf); | |
748 | return -1; | |
749 | } | |
750 | ||
3970c323 | 751 | return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; |
58a02bee AD |
752 | } |
753 | ||
670224f1 GR |
754 | static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) |
755 | { | |
756 | u32 vlvf; | |
757 | s32 regindex; | |
758 | ||
759 | /* short cut the special case */ | |
760 | if (vlan == 0) | |
761 | return 0; | |
762 | ||
763 | /* Search for the vlan id in the VLVF entries */ | |
764 | for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { | |
765 | vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); | |
766 | if ((vlvf & VLAN_VID_MASK) == vlan) | |
767 | break; | |
768 | } | |
769 | ||
770 | /* Return a negative value if not found */ | |
771 | if (regindex >= IXGBE_VLVF_ENTRIES) | |
772 | regindex = -1; | |
773 | ||
774 | return regindex; | |
775 | } | |
776 | ||
58a02bee AD |
777 | static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, |
778 | u32 *msgbuf, u32 vf) | |
779 | { | |
780 | struct ixgbe_hw *hw = &adapter->hw; | |
781 | int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; | |
782 | int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); | |
783 | int err; | |
670224f1 GR |
784 | s32 reg_ndx; |
785 | u32 vlvf; | |
786 | u32 bits; | |
107d3018 | 787 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
58a02bee | 788 | |
107d3018 | 789 | if (adapter->vfinfo[vf].pf_vlan || tcs) { |
58a02bee AD |
790 | e_warn(drv, |
791 | "VF %d attempted to override administratively set VLAN configuration\n" | |
792 | "Reload the VF driver to resume operations\n", | |
793 | vf); | |
794 | return -1; | |
795 | } | |
796 | ||
797 | if (add) | |
798 | adapter->vfinfo[vf].vlan_count++; | |
799 | else if (adapter->vfinfo[vf].vlan_count) | |
800 | adapter->vfinfo[vf].vlan_count--; | |
801 | ||
670224f1 GR |
802 | /* in case of promiscuous mode any VLAN filter set for a VF must |
803 | * also have the PF pool added to it. | |
804 | */ | |
805 | if (add && adapter->netdev->flags & IFF_PROMISC) | |
806 | err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); | |
807 | ||
58a02bee AD |
808 | err = ixgbe_set_vf_vlan(adapter, add, vid, vf); |
809 | if (!err && adapter->vfinfo[vf].spoofchk_enabled) | |
810 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
811 | ||
670224f1 GR |
812 | /* Go through all the checks to see if the VLAN filter should |
813 | * be wiped completely. | |
814 | */ | |
815 | if (!add && adapter->netdev->flags & IFF_PROMISC) { | |
816 | reg_ndx = ixgbe_find_vlvf_entry(hw, vid); | |
817 | if (reg_ndx < 0) | |
818 | goto out; | |
819 | vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx)); | |
820 | /* See if any other pools are set for this VLAN filter | |
821 | * entry other than the PF. | |
822 | */ | |
823 | if (VMDQ_P(0) < 32) { | |
824 | bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); | |
825 | bits &= ~(1 << VMDQ_P(0)); | |
826 | bits |= IXGBE_READ_REG(hw, | |
827 | IXGBE_VLVFB(reg_ndx * 2) + 1); | |
828 | } else { | |
829 | bits = IXGBE_READ_REG(hw, | |
830 | IXGBE_VLVFB(reg_ndx * 2) + 1); | |
831 | bits &= ~(1 << (VMDQ_P(0) - 32)); | |
832 | bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); | |
833 | } | |
834 | ||
835 | /* If the filter was removed then ensure PF pool bit | |
836 | * is cleared if the PF only added itself to the pool | |
837 | * because the PF is in promiscuous mode. | |
838 | */ | |
839 | if ((vlvf & VLAN_VID_MASK) == vid && | |
840 | !test_bit(vid, adapter->active_vlans) && !bits) | |
841 | ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); | |
842 | } | |
843 | ||
844 | out: | |
845 | ||
58a02bee AD |
846 | return err; |
847 | } | |
848 | ||
849 | static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, | |
850 | u32 *msgbuf, u32 vf) | |
851 | { | |
852 | u8 *new_mac = ((u8 *)(&msgbuf[1])); | |
853 | int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> | |
854 | IXGBE_VT_MSGINFO_SHIFT; | |
855 | int err; | |
856 | ||
857 | if (adapter->vfinfo[vf].pf_set_mac && index > 0) { | |
858 | e_warn(drv, | |
859 | "VF %d requested MACVLAN filter but is administratively denied\n", | |
860 | vf); | |
861 | return -1; | |
862 | } | |
863 | ||
864 | /* An non-zero index indicates the VF is setting a filter */ | |
865 | if (index) { | |
866 | if (!is_valid_ether_addr(new_mac)) { | |
867 | e_warn(drv, "VF %d attempted to set invalid mac\n", vf); | |
868 | return -1; | |
869 | } | |
870 | ||
871 | /* | |
872 | * If the VF is allowed to set MAC filters then turn off | |
873 | * anti-spoofing to avoid false positives. | |
874 | */ | |
875 | if (adapter->vfinfo[vf].spoofchk_enabled) | |
876 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); | |
877 | } | |
878 | ||
879 | err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); | |
880 | if (err == -ENOSPC) | |
881 | e_warn(drv, | |
882 | "VF %d has requested a MACVLAN filter but there is no space for it\n", | |
883 | vf); | |
a3013405 GR |
884 | |
885 | return err < 0; | |
17367270 GR |
886 | } |
887 | ||
374c65d6 AD |
888 | static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, |
889 | u32 *msgbuf, u32 vf) | |
890 | { | |
891 | int api = msgbuf[1]; | |
892 | ||
893 | switch (api) { | |
894 | case ixgbe_mbox_api_10: | |
bffb3bc9 | 895 | case ixgbe_mbox_api_11: |
374c65d6 AD |
896 | adapter->vfinfo[vf].vf_api = api; |
897 | return 0; | |
898 | default: | |
899 | break; | |
900 | } | |
901 | ||
902 | e_info(drv, "VF %d requested invalid api version %u\n", vf, api); | |
903 | ||
904 | return -1; | |
905 | } | |
906 | ||
f591cd9d AD |
907 | static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, |
908 | u32 *msgbuf, u32 vf) | |
909 | { | |
910 | struct net_device *dev = adapter->netdev; | |
911 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; | |
912 | unsigned int default_tc = 0; | |
913 | u8 num_tcs = netdev_get_num_tc(dev); | |
914 | ||
915 | /* verify the PF is supporting the correct APIs */ | |
916 | switch (adapter->vfinfo[vf].vf_api) { | |
917 | case ixgbe_mbox_api_20: | |
918 | case ixgbe_mbox_api_11: | |
919 | break; | |
920 | default: | |
921 | return -1; | |
922 | } | |
923 | ||
924 | /* only allow 1 Tx queue for bandwidth limiting */ | |
925 | msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); | |
926 | msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); | |
927 | ||
928 | /* if TCs > 1 determine which TC belongs to default user priority */ | |
929 | if (num_tcs > 1) | |
930 | default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); | |
931 | ||
932 | /* notify VF of need for VLAN tag stripping, and correct queue */ | |
933 | if (num_tcs) | |
934 | msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; | |
935 | else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) | |
936 | msgbuf[IXGBE_VF_TRANS_VLAN] = 1; | |
937 | else | |
938 | msgbuf[IXGBE_VF_TRANS_VLAN] = 0; | |
939 | ||
940 | /* notify VF of default queue */ | |
941 | msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; | |
942 | ||
943 | return 0; | |
944 | } | |
945 | ||
17367270 GR |
946 | static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) |
947 | { | |
948 | u32 mbx_size = IXGBE_VFMAILBOX_SIZE; | |
c050999e | 949 | u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; |
17367270 GR |
950 | struct ixgbe_hw *hw = &adapter->hw; |
951 | s32 retval; | |
17367270 GR |
952 | |
953 | retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); | |
954 | ||
dcaccc82 | 955 | if (retval) { |
849c4542 | 956 | pr_err("Error receiving message from VF\n"); |
dcaccc82 AD |
957 | return retval; |
958 | } | |
17367270 GR |
959 | |
960 | /* this is a message we already processed, do nothing */ | |
961 | if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) | |
962 | return retval; | |
963 | ||
dcaccc82 AD |
964 | /* flush the ack before we write any messages back */ |
965 | IXGBE_WRITE_FLUSH(hw); | |
966 | ||
374c65d6 AD |
967 | if (msgbuf[0] == IXGBE_VF_RESET) |
968 | return ixgbe_vf_reset_msg(adapter, vf); | |
969 | ||
17367270 GR |
970 | /* |
971 | * until the vf completes a virtual function reset it should not be | |
972 | * allowed to start any configuration. | |
973 | */ | |
17367270 GR |
974 | if (!adapter->vfinfo[vf].clear_to_send) { |
975 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
976 | ixgbe_write_mbx(hw, msgbuf, 1, vf); | |
977 | return retval; | |
978 | } | |
979 | ||
980 | switch ((msgbuf[0] & 0xFFFF)) { | |
981 | case IXGBE_VF_SET_MAC_ADDR: | |
58a02bee | 982 | retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); |
17367270 GR |
983 | break; |
984 | case IXGBE_VF_SET_MULTICAST: | |
58a02bee AD |
985 | retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); |
986 | break; | |
987 | case IXGBE_VF_SET_VLAN: | |
988 | retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); | |
17367270 GR |
989 | break; |
990 | case IXGBE_VF_SET_LPE: | |
872844dd | 991 | retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); |
17367270 | 992 | break; |
a1cbb15c | 993 | case IXGBE_VF_SET_MACVLAN: |
58a02bee | 994 | retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); |
a1cbb15c | 995 | break; |
374c65d6 AD |
996 | case IXGBE_VF_API_NEGOTIATE: |
997 | retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); | |
998 | break; | |
f591cd9d AD |
999 | case IXGBE_VF_GET_QUEUES: |
1000 | retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); | |
1001 | break; | |
17367270 | 1002 | default: |
396e799c | 1003 | e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); |
17367270 GR |
1004 | retval = IXGBE_ERR_MBX; |
1005 | break; | |
1006 | } | |
1007 | ||
1008 | /* notify the VF of the results of what it sent us */ | |
1009 | if (retval) | |
1010 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
1011 | else | |
1012 | msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; | |
1013 | ||
1014 | msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; | |
1015 | ||
374c65d6 | 1016 | ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); |
17367270 GR |
1017 | |
1018 | return retval; | |
1019 | } | |
1020 | ||
1021 | static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) | |
1022 | { | |
1023 | struct ixgbe_hw *hw = &adapter->hw; | |
1024 | u32 msg = IXGBE_VT_MSGTYPE_NACK; | |
1025 | ||
1026 | /* if device isn't clear to send it shouldn't be reading either */ | |
1027 | if (!adapter->vfinfo[vf].clear_to_send) | |
1028 | ixgbe_write_mbx(hw, &msg, 1, vf); | |
1029 | } | |
1030 | ||
1031 | void ixgbe_msg_task(struct ixgbe_adapter *adapter) | |
1032 | { | |
1033 | struct ixgbe_hw *hw = &adapter->hw; | |
1034 | u32 vf; | |
1035 | ||
1036 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
1037 | /* process any reset requests */ | |
1038 | if (!ixgbe_check_for_rst(hw, vf)) | |
1039 | ixgbe_vf_reset_event(adapter, vf); | |
1040 | ||
1041 | /* process any messages pending */ | |
1042 | if (!ixgbe_check_for_msg(hw, vf)) | |
1043 | ixgbe_rcv_msg_from_vf(adapter, vf); | |
1044 | ||
1045 | /* process any acks */ | |
1046 | if (!ixgbe_check_for_ack(hw, vf)) | |
1047 | ixgbe_rcv_ack_from_vf(adapter, vf); | |
1048 | } | |
1049 | } | |
1050 | ||
767081ad GR |
1051 | void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) |
1052 | { | |
1053 | struct ixgbe_hw *hw = &adapter->hw; | |
1054 | ||
1055 | /* disable transmit and receive for all vfs */ | |
1056 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); | |
1057 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); | |
1058 | ||
1059 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); | |
1060 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); | |
1061 | } | |
1062 | ||
1063 | void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) | |
1064 | { | |
1065 | struct ixgbe_hw *hw = &adapter->hw; | |
1066 | u32 ping; | |
1067 | int i; | |
1068 | ||
1069 | for (i = 0 ; i < adapter->num_vfs; i++) { | |
1070 | ping = IXGBE_PF_CONTROL_MSG; | |
1071 | if (adapter->vfinfo[i].clear_to_send) | |
1072 | ping |= IXGBE_VT_MSGTYPE_CTS; | |
1073 | ixgbe_write_mbx(hw, &ping, 1, i); | |
1074 | } | |
1075 | } | |
1076 | ||
7f01648a GR |
1077 | int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
1078 | { | |
1079 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1080 | if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) | |
1081 | return -EINVAL; | |
1082 | adapter->vfinfo[vf].pf_set_mac = true; | |
1083 | dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); | |
1084 | dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" | |
1085 | " change effective."); | |
1086 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1087 | dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," | |
1088 | " but the PF device is not up.\n"); | |
1089 | dev_warn(&adapter->pdev->dev, "Bring the PF device up before" | |
1090 | " attempting to use the VF device.\n"); | |
1091 | } | |
1092 | return ixgbe_set_vf_mac(adapter, vf, mac); | |
1093 | } | |
1094 | ||
1095 | int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) | |
1096 | { | |
1097 | int err = 0; | |
1098 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
a985b6c3 | 1099 | struct ixgbe_hw *hw = &adapter->hw; |
7f01648a GR |
1100 | |
1101 | if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) | |
1102 | return -EINVAL; | |
1103 | if (vlan || qos) { | |
026ac677 GR |
1104 | if (adapter->vfinfo[vf].pf_vlan) |
1105 | err = ixgbe_set_vf_vlan(adapter, false, | |
1106 | adapter->vfinfo[vf].pf_vlan, | |
1107 | vf); | |
1108 | if (err) | |
1109 | goto out; | |
7f01648a GR |
1110 | err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); |
1111 | if (err) | |
1112 | goto out; | |
107d3018 | 1113 | ixgbe_set_vmvir(adapter, vlan, qos, vf); |
a985b6c3 | 1114 | ixgbe_set_vmolr(hw, vf, false); |
de4c7f65 | 1115 | if (adapter->vfinfo[vf].spoofchk_enabled) |
a1cbb15c | 1116 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); |
de4c7f65 | 1117 | adapter->vfinfo[vf].vlan_count++; |
7f01648a GR |
1118 | adapter->vfinfo[vf].pf_vlan = vlan; |
1119 | adapter->vfinfo[vf].pf_qos = qos; | |
1120 | dev_info(&adapter->pdev->dev, | |
1121 | "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); | |
1122 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1123 | dev_warn(&adapter->pdev->dev, | |
1124 | "The VF VLAN has been set," | |
1125 | " but the PF device is not up.\n"); | |
1126 | dev_warn(&adapter->pdev->dev, | |
1127 | "Bring the PF device up before" | |
1128 | " attempting to use the VF device.\n"); | |
1129 | } | |
1130 | } else { | |
1131 | err = ixgbe_set_vf_vlan(adapter, false, | |
1132 | adapter->vfinfo[vf].pf_vlan, vf); | |
107d3018 | 1133 | ixgbe_clear_vmvir(adapter, vf); |
a985b6c3 GR |
1134 | ixgbe_set_vmolr(hw, vf, true); |
1135 | hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); | |
de4c7f65 GR |
1136 | if (adapter->vfinfo[vf].vlan_count) |
1137 | adapter->vfinfo[vf].vlan_count--; | |
7f01648a GR |
1138 | adapter->vfinfo[vf].pf_vlan = 0; |
1139 | adapter->vfinfo[vf].pf_qos = 0; | |
1140 | } | |
1141 | out: | |
1142 | return err; | |
1143 | } | |
1144 | ||
9f66d3ee | 1145 | static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) |
ff4ab206 | 1146 | { |
9f66d3ee | 1147 | switch (adapter->link_speed) { |
ff4ab206 LL |
1148 | case IXGBE_LINK_SPEED_100_FULL: |
1149 | return 100; | |
1150 | case IXGBE_LINK_SPEED_1GB_FULL: | |
1151 | return 1000; | |
1152 | case IXGBE_LINK_SPEED_10GB_FULL: | |
1153 | return 10000; | |
1154 | default: | |
1155 | return 0; | |
1156 | } | |
1157 | } | |
1158 | ||
9f66d3ee | 1159 | static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) |
ff4ab206 | 1160 | { |
9f66d3ee AD |
1161 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; |
1162 | struct ixgbe_hw *hw = &adapter->hw; | |
1163 | u32 bcnrc_val = 0; | |
1164 | u16 queue, queues_per_pool; | |
1165 | u16 tx_rate = adapter->vfinfo[vf].tx_rate; | |
1166 | ||
1167 | if (tx_rate) { | |
1168 | /* start with base link speed value */ | |
1169 | bcnrc_val = adapter->vf_rate_link_speed; | |
ff4ab206 | 1170 | |
ff4ab206 | 1171 | /* Calculate the rate factor values to set */ |
9f66d3ee AD |
1172 | bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; |
1173 | bcnrc_val /= tx_rate; | |
1174 | ||
1175 | /* clear everything but the rate factor */ | |
1176 | bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | | |
1177 | IXGBE_RTTBCNRC_RF_DEC_MASK; | |
1178 | ||
1179 | /* enable the rate scheduler */ | |
1180 | bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; | |
ff4ab206 LL |
1181 | } |
1182 | ||
7555e83d LL |
1183 | /* |
1184 | * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM | |
1185 | * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported | |
1186 | * and 0x004 otherwise. | |
1187 | */ | |
1188 | switch (hw->mac.type) { | |
1189 | case ixgbe_mac_82599EB: | |
1190 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); | |
1191 | break; | |
1192 | case ixgbe_mac_X540: | |
1193 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); | |
1194 | break; | |
1195 | default: | |
1196 | break; | |
1197 | } | |
1198 | ||
9f66d3ee AD |
1199 | /* determine how many queues per pool based on VMDq mask */ |
1200 | queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); | |
1201 | ||
1202 | /* write value for all Tx queues belonging to VF */ | |
1203 | for (queue = 0; queue < queues_per_pool; queue++) { | |
1204 | unsigned int reg_idx = (vf * queues_per_pool) + queue; | |
1205 | ||
1206 | IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); | |
1207 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); | |
1208 | } | |
ff4ab206 LL |
1209 | } |
1210 | ||
1211 | void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) | |
1212 | { | |
9f66d3ee | 1213 | int i; |
ff4ab206 LL |
1214 | |
1215 | /* VF Tx rate limit was not set */ | |
9f66d3ee | 1216 | if (!adapter->vf_rate_link_speed) |
ff4ab206 LL |
1217 | return; |
1218 | ||
9f66d3ee | 1219 | if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { |
ff4ab206 LL |
1220 | adapter->vf_rate_link_speed = 0; |
1221 | dev_info(&adapter->pdev->dev, | |
9f66d3ee | 1222 | "Link speed has been changed. VF Transmit rate is disabled\n"); |
ff4ab206 LL |
1223 | } |
1224 | ||
1225 | for (i = 0; i < adapter->num_vfs; i++) { | |
9f66d3ee | 1226 | if (!adapter->vf_rate_link_speed) |
ff4ab206 LL |
1227 | adapter->vfinfo[i].tx_rate = 0; |
1228 | ||
9f66d3ee | 1229 | ixgbe_set_vf_rate_limit(adapter, i); |
ff4ab206 LL |
1230 | } |
1231 | } | |
1232 | ||
7f01648a GR |
1233 | int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) |
1234 | { | |
ff4ab206 | 1235 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
9f66d3ee AD |
1236 | int link_speed; |
1237 | ||
1238 | /* verify VF is active */ | |
1239 | if (vf >= adapter->num_vfs) | |
1240 | return -EINVAL; | |
1241 | ||
1242 | /* verify link is up */ | |
1243 | if (!adapter->link_up) | |
1244 | return -EINVAL; | |
1245 | ||
1246 | /* verify we are linked at 10Gbps */ | |
1247 | link_speed = ixgbe_link_mbps(adapter); | |
1248 | if (link_speed != 10000) | |
1249 | return -EINVAL; | |
ff4ab206 | 1250 | |
9f66d3ee AD |
1251 | /* rate limit cannot be less than 10Mbs or greater than link speed */ |
1252 | if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed))) | |
ff4ab206 LL |
1253 | return -EINVAL; |
1254 | ||
9f66d3ee AD |
1255 | /* store values */ |
1256 | adapter->vf_rate_link_speed = link_speed; | |
1257 | adapter->vfinfo[vf].tx_rate = tx_rate; | |
1258 | ||
1259 | /* update hardware configuration */ | |
1260 | ixgbe_set_vf_rate_limit(adapter, vf); | |
ff4ab206 LL |
1261 | |
1262 | return 0; | |
7f01648a GR |
1263 | } |
1264 | ||
de4c7f65 GR |
1265 | int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) |
1266 | { | |
1267 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1268 | int vf_target_reg = vf >> 3; | |
1269 | int vf_target_shift = vf % 8; | |
1270 | struct ixgbe_hw *hw = &adapter->hw; | |
1271 | u32 regval; | |
1272 | ||
1273 | adapter->vfinfo[vf].spoofchk_enabled = setting; | |
1274 | ||
1275 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
1276 | regval &= ~(1 << vf_target_shift); | |
1277 | regval |= (setting << vf_target_shift); | |
1278 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
1279 | ||
1280 | if (adapter->vfinfo[vf].vlan_count) { | |
1281 | vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; | |
1282 | regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
1283 | regval &= ~(1 << vf_target_shift); | |
1284 | regval |= (setting << vf_target_shift); | |
1285 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); | |
1286 | } | |
1287 | ||
1288 | return 0; | |
1289 | } | |
1290 | ||
7f01648a GR |
1291 | int ixgbe_ndo_get_vf_config(struct net_device *netdev, |
1292 | int vf, struct ifla_vf_info *ivi) | |
1293 | { | |
1294 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1295 | if (vf >= adapter->num_vfs) | |
1296 | return -EINVAL; | |
1297 | ivi->vf = vf; | |
1298 | memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); | |
ff4ab206 | 1299 | ivi->tx_rate = adapter->vfinfo[vf].tx_rate; |
7f01648a GR |
1300 | ivi->vlan = adapter->vfinfo[vf].pf_vlan; |
1301 | ivi->qos = adapter->vfinfo[vf].pf_qos; | |
de4c7f65 | 1302 | ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; |
7f01648a GR |
1303 | return 0; |
1304 | } |