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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 1999 - 2018 Intel Corporation. */
3
4#include <linux/types.h>
5#include <linux/module.h>
6#include <linux/pci.h>
7#include <linux/netdevice.h>
8#include <linux/vmalloc.h>
9#include <linux/string.h>
10#include <linux/in.h>
11#include <linux/ip.h>
12#include <linux/tcp.h>
13#include <linux/ipv6.h>
14#include <linux/if_bridge.h>
15#ifdef NETIF_F_HW_VLAN_CTAG_TX
16#include <linux/if_vlan.h>
17#endif
18
19#include "ixgbe.h"
20#include "ixgbe_type.h"
21#include "ixgbe_mbx.h"
22#include "ixgbe_sriov.h"
23
24#ifdef CONFIG_PCI_IOV
25static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
26 unsigned int num_vfs)
27{
28 struct ixgbe_hw *hw = &adapter->hw;
29 struct vf_macvlans *mv_list;
30 int num_vf_macvlans, i;
31
32 /* Initialize list of VF macvlans */
33 INIT_LIST_HEAD(&adapter->vf_mvs.l);
34
35 num_vf_macvlans = hw->mac.num_rar_entries -
36 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
37 if (!num_vf_macvlans)
38 return;
39
40 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
41 GFP_KERNEL);
42 if (mv_list) {
43 for (i = 0; i < num_vf_macvlans; i++) {
44 mv_list[i].vf = -1;
45 mv_list[i].free = true;
46 list_add(&mv_list[i].l, &adapter->vf_mvs.l);
47 }
48 adapter->mv_list = mv_list;
49 }
50}
51
52static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
53 unsigned int num_vfs)
54{
55 struct ixgbe_hw *hw = &adapter->hw;
56 int i;
57
58 if (adapter->xdp_prog) {
59 e_warn(probe, "SRIOV is not supported with XDP\n");
60 return -EINVAL;
61 }
62
63 /* Enable VMDq flag so device will be set in VM mode */
64 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
65 IXGBE_FLAG_VMDQ_ENABLED;
66
67 /* Allocate memory for per VF control structures */
68 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
69 GFP_KERNEL);
70 if (!adapter->vfinfo)
71 return -ENOMEM;
72
73 adapter->num_vfs = num_vfs;
74
75 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
76 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
77
78 /* Initialize default switching mode VEB */
79 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
80 adapter->bridge_mode = BRIDGE_MODE_VEB;
81
82 /* limit traffic classes based on VFs enabled */
83 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
84 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
85 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
86 } else if (num_vfs < 32) {
87 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
88 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
89 } else {
90 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
91 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
92 }
93
94 /* Disable RSC when in SR-IOV mode */
95 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
96 IXGBE_FLAG2_RSC_ENABLED);
97
98 for (i = 0; i < num_vfs; i++) {
99 /* enable spoof checking for all VFs */
100 adapter->vfinfo[i].spoofchk_enabled = true;
101 adapter->vfinfo[i].link_enable = true;
102
103 /* We support VF RSS querying only for 82599 and x540
104 * devices at the moment. These devices share RSS
105 * indirection table and RSS hash key with PF therefore
106 * we want to disable the querying by default.
107 */
108 adapter->vfinfo[i].rss_query_enabled = false;
109
110 /* Untrust all VFs */
111 adapter->vfinfo[i].trusted = false;
112
113 /* set the default xcast mode */
114 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
115 }
116
117 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
118 return 0;
119}
120
121/**
122 * ixgbe_get_vfs - Find and take references to all vf devices
123 * @adapter: Pointer to adapter struct
124 */
125static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
126{
127 struct pci_dev *pdev = adapter->pdev;
128 u16 vendor = pdev->vendor;
129 struct pci_dev *vfdev;
130 int vf = 0;
131 u16 vf_id;
132 int pos;
133
134 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
135 if (!pos)
136 return;
137 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
138
139 vfdev = pci_get_device(vendor, vf_id, NULL);
140 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
141 if (!vfdev->is_virtfn)
142 continue;
143 if (vfdev->physfn != pdev)
144 continue;
145 if (vf >= adapter->num_vfs)
146 continue;
147 pci_dev_get(vfdev);
148 adapter->vfinfo[vf].vfdev = vfdev;
149 ++vf;
150 }
151}
152
153/* Note this function is called when the user wants to enable SR-IOV
154 * VFs using the now deprecated module parameter
155 */
156void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
157{
158 int pre_existing_vfs = 0;
159 unsigned int num_vfs;
160
161 pre_existing_vfs = pci_num_vf(adapter->pdev);
162 if (!pre_existing_vfs && !max_vfs)
163 return;
164
165 /* If there are pre-existing VFs then we have to force
166 * use of that many - over ride any module parameter value.
167 * This may result from the user unloading the PF driver
168 * while VFs were assigned to guest VMs or because the VFs
169 * have been created via the new PCI SR-IOV sysfs interface.
170 */
171 if (pre_existing_vfs) {
172 num_vfs = pre_existing_vfs;
173 dev_warn(&adapter->pdev->dev,
174 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
175 } else {
176 int err;
177 /*
178 * The 82599 supports up to 64 VFs per physical function
179 * but this implementation limits allocation to 63 so that
180 * basic networking resources are still available to the
181 * physical function. If the user requests greater than
182 * 63 VFs then it is an error - reset to default of zero.
183 */
184 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
185
186 err = pci_enable_sriov(adapter->pdev, num_vfs);
187 if (err) {
188 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
189 return;
190 }
191 }
192
193 if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
194 ixgbe_get_vfs(adapter);
195 return;
196 }
197
198 /* If we have gotten to this point then there is no memory available
199 * to manage the VF devices - print message and bail.
200 */
201 e_err(probe, "Unable to allocate memory for VF Data Storage - "
202 "SRIOV disabled\n");
203 ixgbe_disable_sriov(adapter);
204}
205
206#endif /* #ifdef CONFIG_PCI_IOV */
207int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
208{
209 unsigned int num_vfs = adapter->num_vfs, vf;
210 unsigned long flags;
211 int rss;
212
213 spin_lock_irqsave(&adapter->vfs_lock, flags);
214 /* set num VFs to 0 to prevent access to vfinfo */
215 adapter->num_vfs = 0;
216 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
217
218 /* put the reference to all of the vf devices */
219 for (vf = 0; vf < num_vfs; ++vf) {
220 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
221
222 if (!vfdev)
223 continue;
224 adapter->vfinfo[vf].vfdev = NULL;
225 pci_dev_put(vfdev);
226 }
227
228 /* free VF control structures */
229 kfree(adapter->vfinfo);
230 adapter->vfinfo = NULL;
231
232 /* free macvlan list */
233 kfree(adapter->mv_list);
234 adapter->mv_list = NULL;
235
236 /* if SR-IOV is already disabled then there is nothing to do */
237 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
238 return 0;
239
240#ifdef CONFIG_PCI_IOV
241 /*
242 * If our VFs are assigned we cannot shut down SR-IOV
243 * without causing issues, so just leave the hardware
244 * available but disabled
245 */
246 if (pci_vfs_assigned(adapter->pdev)) {
247 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
248 return -EPERM;
249 }
250 /* disable iov and allow time for transactions to clear */
251 pci_disable_sriov(adapter->pdev);
252#endif
253
254 /* Disable VMDq flag so device will be set in VM mode */
255 if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
256 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
257 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
258 rss = min_t(int, ixgbe_max_rss_indices(adapter),
259 num_online_cpus());
260 } else {
261 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
262 }
263
264 adapter->ring_feature[RING_F_VMDQ].offset = 0;
265 adapter->ring_feature[RING_F_RSS].limit = rss;
266
267 /* take a breather then clean up driver data */
268 msleep(100);
269 return 0;
270}
271
272static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
273{
274#ifdef CONFIG_PCI_IOV
275 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
276 int pre_existing_vfs = pci_num_vf(dev);
277 int err = 0, num_rx_pools, i, limit;
278 u8 num_tc;
279
280 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
281 err = ixgbe_disable_sriov(adapter);
282 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
283 return num_vfs;
284
285 if (err)
286 return err;
287
288 /* While the SR-IOV capability structure reports total VFs to be 64,
289 * we limit the actual number allocated as below based on two factors.
290 * Num_TCs MAX_VFs
291 * 1 63
292 * <=4 31
293 * >4 15
294 * First, we reserve some transmit/receive resources for the PF.
295 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
296 * account for this, so that we don't accidentally allocate more VFs
297 * than we have available pools. The PCI bus driver already checks for
298 * other values out of range.
299 */
300 num_tc = adapter->hw_tcs;
301 num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
302 adapter->num_rx_pools);
303 limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
304 (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
305
306 if (num_vfs > (limit - num_rx_pools)) {
307 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
308 num_tc, num_rx_pools - 1, limit - num_rx_pools);
309 return -EPERM;
310 }
311
312 err = __ixgbe_enable_sriov(adapter, num_vfs);
313 if (err)
314 return err;
315
316 for (i = 0; i < num_vfs; i++)
317 ixgbe_vf_configuration(dev, (i | 0x10000000));
318
319 /* reset before enabling SRIOV to avoid mailbox issues */
320 ixgbe_sriov_reinit(adapter);
321
322 err = pci_enable_sriov(dev, num_vfs);
323 if (err) {
324 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
325 return err;
326 }
327 ixgbe_get_vfs(adapter);
328
329 return num_vfs;
330#else
331 return 0;
332#endif
333}
334
335static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
336{
337 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
338 int err;
339#ifdef CONFIG_PCI_IOV
340 u32 current_flags = adapter->flags;
341 int prev_num_vf = pci_num_vf(dev);
342#endif
343
344 err = ixgbe_disable_sriov(adapter);
345
346 /* Only reinit if no error and state changed */
347#ifdef CONFIG_PCI_IOV
348 if (!err && (current_flags != adapter->flags ||
349 prev_num_vf != pci_num_vf(dev)))
350 ixgbe_sriov_reinit(adapter);
351#endif
352
353 return err;
354}
355
356int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
357{
358 if (num_vfs == 0)
359 return ixgbe_pci_sriov_disable(dev);
360 else
361 return ixgbe_pci_sriov_enable(dev, num_vfs);
362}
363
364static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
365 u32 *msgbuf, u32 vf)
366{
367 int entries = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
368 u16 *hash_list = (u16 *)&msgbuf[1];
369 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
370 struct ixgbe_hw *hw = &adapter->hw;
371 int i;
372 u32 vector_bit;
373 u32 vector_reg;
374 u32 mta_reg;
375 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
376
377 /* only so many hash values supported */
378 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
379
380 /*
381 * salt away the number of multi cast addresses assigned
382 * to this VF for later use to restore when the PF multi cast
383 * list changes
384 */
385 vfinfo->num_vf_mc_hashes = entries;
386
387 /*
388 * VFs are limited to using the MTA hash table for their multicast
389 * addresses
390 */
391 for (i = 0; i < entries; i++) {
392 vfinfo->vf_mc_hashes[i] = hash_list[i];
393 }
394
395 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
396 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
397 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
398 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
399 mta_reg |= BIT(vector_bit);
400 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
401 }
402 vmolr |= IXGBE_VMOLR_ROMPE;
403 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
404
405 return 0;
406}
407
408#ifdef CONFIG_PCI_IOV
409void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
410{
411 struct ixgbe_hw *hw = &adapter->hw;
412 struct vf_data_storage *vfinfo;
413 int i, j;
414 u32 vector_bit;
415 u32 vector_reg;
416 u32 mta_reg;
417
418 for (i = 0; i < adapter->num_vfs; i++) {
419 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
420 vfinfo = &adapter->vfinfo[i];
421 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
422 hw->addr_ctrl.mta_in_use++;
423 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
424 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
425 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
426 mta_reg |= BIT(vector_bit);
427 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
428 }
429
430 if (vfinfo->num_vf_mc_hashes)
431 vmolr |= IXGBE_VMOLR_ROMPE;
432 else
433 vmolr &= ~IXGBE_VMOLR_ROMPE;
434 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
435 }
436
437 /* Restore any VF macvlans */
438 ixgbe_full_sync_mac_table(adapter);
439}
440#endif
441
442static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
443 u32 vf)
444{
445 struct ixgbe_hw *hw = &adapter->hw;
446 int err;
447
448 /* If VLAN overlaps with one the PF is currently monitoring make
449 * sure that we are able to allocate a VLVF entry. This may be
450 * redundant but it guarantees PF will maintain visibility to
451 * the VLAN.
452 */
453 if (add && test_bit(vid, adapter->active_vlans)) {
454 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
455 if (err)
456 return err;
457 }
458
459 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
460
461 if (add && !err)
462 return err;
463
464 /* If we failed to add the VF VLAN or we are removing the VF VLAN
465 * we may need to drop the PF pool bit in order to allow us to free
466 * up the VLVF resources.
467 */
468 if (test_bit(vid, adapter->active_vlans) ||
469 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
470 ixgbe_update_pf_promisc_vlvf(adapter, vid);
471
472 return err;
473}
474
475static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
476{
477 struct ixgbe_hw *hw = &adapter->hw;
478 u32 max_frs;
479
480 if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
481 e_err(drv, "VF max_frame %d out of range\n", max_frame);
482 return -EINVAL;
483 }
484
485 /*
486 * For 82599EB we have to keep all PFs and VFs operating with
487 * the same max_frame value in order to avoid sending an oversize
488 * frame to a VF. In order to guarantee this is handled correctly
489 * for all cases we have several special exceptions to take into
490 * account before we can enable the VF for receive
491 */
492 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
493 struct net_device *dev = adapter->netdev;
494 int pf_max_frame = dev->mtu + ETH_HLEN;
495 u32 reg_offset, vf_shift, vfre;
496 int err = 0;
497
498#ifdef CONFIG_FCOE
499 if (dev->fcoe_mtu)
500 pf_max_frame = max_t(int, pf_max_frame,
501 IXGBE_FCOE_JUMBO_FRAME_SIZE);
502
503#endif /* CONFIG_FCOE */
504 switch (adapter->vfinfo[vf].vf_api) {
505 case ixgbe_mbox_api_11:
506 case ixgbe_mbox_api_12:
507 case ixgbe_mbox_api_13:
508 case ixgbe_mbox_api_14:
509 /* Version 1.1 supports jumbo frames on VFs if PF has
510 * jumbo frames enabled which means legacy VFs are
511 * disabled
512 */
513 if (pf_max_frame > ETH_FRAME_LEN)
514 break;
515 fallthrough;
516 default:
517 /* If the PF or VF are running w/ jumbo frames enabled
518 * we need to shut down the VF Rx path as we cannot
519 * support jumbo frames on legacy VFs
520 */
521 if ((pf_max_frame > ETH_FRAME_LEN) ||
522 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
523 err = -EINVAL;
524 break;
525 }
526
527 /* determine VF receive enable location */
528 vf_shift = vf % 32;
529 reg_offset = vf / 32;
530
531 /* enable or disable receive depending on error */
532 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
533 if (err)
534 vfre &= ~BIT(vf_shift);
535 else
536 vfre |= BIT(vf_shift);
537 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
538
539 if (err) {
540 e_err(drv, "VF max_frame %d out of range\n", max_frame);
541 return err;
542 }
543 }
544
545 /* pull current max frame size from hardware */
546 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
547 max_frs &= IXGBE_MHADD_MFS_MASK;
548 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
549
550 if (max_frs < max_frame) {
551 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
552 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
553 }
554
555 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
556
557 return 0;
558}
559
560static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
561{
562 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
563 vmolr |= IXGBE_VMOLR_BAM;
564 if (aupe)
565 vmolr |= IXGBE_VMOLR_AUPE;
566 else
567 vmolr &= ~IXGBE_VMOLR_AUPE;
568 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
569}
570
571static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
572{
573 struct ixgbe_hw *hw = &adapter->hw;
574
575 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
576}
577
578static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
579{
580 struct ixgbe_hw *hw = &adapter->hw;
581 u32 vlvfb_mask, pool_mask, i;
582
583 /* create mask for VF and other pools */
584 pool_mask = ~BIT(VMDQ_P(0) % 32);
585 vlvfb_mask = BIT(vf % 32);
586
587 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
588 for (i = IXGBE_VLVF_ENTRIES; i--;) {
589 u32 bits[2], vlvfb, vid, vfta, vlvf;
590 u32 word = i * 2 + vf / 32;
591 u32 mask;
592
593 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
594
595 /* if our bit isn't set we can skip it */
596 if (!(vlvfb & vlvfb_mask))
597 continue;
598
599 /* clear our bit from vlvfb */
600 vlvfb ^= vlvfb_mask;
601
602 /* create 64b mask to chedk to see if we should clear VLVF */
603 bits[word % 2] = vlvfb;
604 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
605
606 /* if other pools are present, just remove ourselves */
607 if (bits[(VMDQ_P(0) / 32) ^ 1] ||
608 (bits[VMDQ_P(0) / 32] & pool_mask))
609 goto update_vlvfb;
610
611 /* if PF is present, leave VFTA */
612 if (bits[0] || bits[1])
613 goto update_vlvf;
614
615 /* if we cannot determine VLAN just remove ourselves */
616 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
617 if (!vlvf)
618 goto update_vlvfb;
619
620 vid = vlvf & VLAN_VID_MASK;
621 mask = BIT(vid % 32);
622
623 /* clear bit from VFTA */
624 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
625 if (vfta & mask)
626 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
627update_vlvf:
628 /* clear POOL selection enable */
629 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
630
631 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
632 vlvfb = 0;
633update_vlvfb:
634 /* clear pool bits */
635 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
636 }
637}
638
639static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
640 int vf, int index, unsigned char *mac_addr)
641{
642 struct vf_macvlans *entry;
643 bool found = false;
644 int retval = 0;
645
646 if (index <= 1) {
647 list_for_each_entry(entry, &adapter->vf_mvs.l, l) {
648 if (entry->vf == vf) {
649 entry->vf = -1;
650 entry->free = true;
651 entry->is_macvlan = false;
652 ixgbe_del_mac_filter(adapter,
653 entry->vf_macvlan, vf);
654 }
655 }
656 }
657
658 /*
659 * If index was zero then we were asked to clear the uc list
660 * for the VF. We're done.
661 */
662 if (!index)
663 return 0;
664
665 list_for_each_entry(entry, &adapter->vf_mvs.l, l) {
666 if (entry->free) {
667 found = true;
668 break;
669 }
670 }
671
672 /*
673 * If we traversed the entire list and didn't find a free entry
674 * then we're out of space on the RAR table. It's also possible
675 * for the &adapter->vf_mvs.l list to be empty because the original
676 * memory allocation for the list failed, which is not fatal but does
677 * mean we can't support VF requests for MACVLAN because we couldn't
678 * allocate memory for the list management required.
679 */
680 if (!found)
681 return -ENOSPC;
682
683 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
684 if (retval < 0)
685 return retval;
686
687 entry->free = false;
688 entry->is_macvlan = true;
689 entry->vf = vf;
690 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
691
692 return 0;
693}
694
695static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
696{
697 struct ixgbe_hw *hw = &adapter->hw;
698 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
699 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
700 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
701 u8 num_tcs = adapter->hw_tcs;
702 u32 reg_val;
703 u32 queue;
704
705 /* remove VLAN filters beloning to this VF */
706 ixgbe_clear_vf_vlans(adapter, vf);
707
708 /* add back PF assigned VLAN or VLAN 0 */
709 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
710
711 /* reset offloads to defaults */
712 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
713
714 /* set outgoing tags for VFs */
715 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
716 ixgbe_clear_vmvir(adapter, vf);
717 } else {
718 if (vfinfo->pf_qos || !num_tcs)
719 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
720 vfinfo->pf_qos, vf);
721 else
722 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
723 adapter->default_up, vf);
724
725 if (vfinfo->spoofchk_enabled) {
726 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
727 hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
728 }
729 }
730
731 /* reset multicast table array for vf */
732 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
733
734 /* clear any ipsec table info */
735 ixgbe_ipsec_vf_clear(adapter, vf);
736
737 /* Flush and reset the mta with the new values */
738 ixgbe_set_rx_mode(adapter->netdev);
739
740 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
741 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
742
743 /* reset VF api back to unknown */
744 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
745
746 /* Restart each queue for given VF */
747 for (queue = 0; queue < q_per_pool; queue++) {
748 unsigned int reg_idx = (vf * q_per_pool) + queue;
749
750 reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
751
752 /* Re-enabling only configured queues */
753 if (reg_val) {
754 reg_val |= IXGBE_TXDCTL_ENABLE;
755 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
756 reg_val &= ~IXGBE_TXDCTL_ENABLE;
757 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
758 }
759 }
760
761 IXGBE_WRITE_FLUSH(hw);
762}
763
764static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf)
765{
766 struct ixgbe_hw *hw = &adapter->hw;
767 u32 word;
768
769 /* Clear VF's mailbox memory */
770 for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
771 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
772
773 IXGBE_WRITE_FLUSH(hw);
774}
775
776static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
777 int vf, unsigned char *mac_addr)
778{
779 int retval;
780
781 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
782 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
783 if (retval >= 0)
784 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
785 ETH_ALEN);
786 else
787 eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses);
788
789 return retval;
790}
791
792int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
793{
794 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
795 unsigned int vfn = (event_mask & 0x3f);
796
797 bool enable = ((event_mask & 0x10000000U) != 0);
798
799 if (enable)
800 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
801
802 return 0;
803}
804
805static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
806 u32 qde)
807{
808 struct ixgbe_hw *hw = &adapter->hw;
809 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
810 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
811 int i;
812
813 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
814 u32 reg;
815
816 /* flush previous write */
817 IXGBE_WRITE_FLUSH(hw);
818
819 /* indicate to hardware that we want to set drop enable */
820 reg = IXGBE_QDE_WRITE | qde;
821 reg |= i << IXGBE_QDE_IDX_SHIFT;
822 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
823 }
824}
825
826/**
827 * ixgbe_set_vf_rx_tx - Set VF rx tx
828 * @adapter: Pointer to adapter struct
829 * @vf: VF identifier
830 *
831 * Set or reset correct transmit and receive for vf
832 **/
833static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter *adapter, int vf)
834{
835 u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
836 struct ixgbe_hw *hw = &adapter->hw;
837 u32 reg_offset, vf_shift;
838
839 vf_shift = vf % 32;
840 reg_offset = vf / 32;
841
842 reg_cur_tx = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
843 reg_cur_rx = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
844
845 if (adapter->vfinfo[vf].link_enable) {
846 reg_req_tx = reg_cur_tx | 1 << vf_shift;
847 reg_req_rx = reg_cur_rx | 1 << vf_shift;
848 } else {
849 reg_req_tx = reg_cur_tx & ~(1 << vf_shift);
850 reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
851 }
852
853 /* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
854 * For more info take a look at ixgbe_set_vf_lpe
855 */
856 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
857 struct net_device *dev = adapter->netdev;
858 int pf_max_frame = dev->mtu + ETH_HLEN;
859
860#if IS_ENABLED(CONFIG_FCOE)
861 if (dev->fcoe_mtu)
862 pf_max_frame = max_t(int, pf_max_frame,
863 IXGBE_FCOE_JUMBO_FRAME_SIZE);
864#endif /* CONFIG_FCOE */
865
866 if (pf_max_frame > ETH_FRAME_LEN)
867 reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
868 }
869
870 /* Enable/Disable particular VF */
871 if (reg_cur_tx != reg_req_tx)
872 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg_req_tx);
873 if (reg_cur_rx != reg_req_rx)
874 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg_req_rx);
875}
876
877static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
878{
879 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
880 struct ixgbe_hw *hw = &adapter->hw;
881 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
882 u32 reg, reg_offset, vf_shift;
883 u32 msgbuf[4] = {0, 0, 0, 0};
884 u8 *addr = (u8 *)(&msgbuf[1]);
885 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
886 int i;
887
888 e_info(probe, "VF Reset msg received from vf %d\n", vf);
889
890 /* reset the filters for the device */
891 ixgbe_vf_reset_event(adapter, vf);
892
893 ixgbe_vf_clear_mbx(adapter, vf);
894
895 /* set vf mac address */
896 if (!is_zero_ether_addr(vf_mac))
897 ixgbe_set_vf_mac(adapter, vf, vf_mac);
898
899 vf_shift = vf % 32;
900 reg_offset = vf / 32;
901
902 /* force drop enable for all VF Rx queues */
903 reg = IXGBE_QDE_ENABLE;
904 if (adapter->vfinfo[vf].pf_vlan)
905 reg |= IXGBE_QDE_HIDE_VLAN;
906
907 ixgbe_write_qde(adapter, vf, reg);
908
909 ixgbe_set_vf_rx_tx(adapter, vf);
910
911 /* enable VF mailbox for further messages */
912 adapter->vfinfo[vf].clear_to_send = true;
913
914 /* Enable counting of spoofed packets in the SSVPC register */
915 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
916 reg |= BIT(vf_shift);
917 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
918
919 /*
920 * Reset the VFs TDWBAL and TDWBAH registers
921 * which are not cleared by an FLR
922 */
923 for (i = 0; i < q_per_pool; i++) {
924 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
925 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
926 }
927
928 /* reply to reset with ack and vf mac address */
929 msgbuf[0] = IXGBE_VF_RESET;
930 if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
931 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
932 memcpy(addr, vf_mac, ETH_ALEN);
933 } else {
934 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
935 }
936
937 /*
938 * Piggyback the multicast filter type so VF can compute the
939 * correct vectors
940 */
941 msgbuf[3] = hw->mac.mc_filter_type;
942 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
943
944 return 0;
945}
946
947static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
948 u32 *msgbuf, u32 vf)
949{
950 u8 *new_mac = ((u8 *)(&msgbuf[1]));
951
952 if (!is_valid_ether_addr(new_mac)) {
953 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
954 return -1;
955 }
956
957 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
958 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
959 e_warn(drv,
960 "VF %d attempted to override administratively set MAC address\n"
961 "Reload the VF driver to resume operations\n",
962 vf);
963 return -1;
964 }
965
966 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
967}
968
969static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
970 u32 *msgbuf, u32 vf)
971{
972 u32 add = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
973 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
974 u8 tcs = adapter->hw_tcs;
975
976 if (adapter->vfinfo[vf].pf_vlan || tcs) {
977 e_warn(drv,
978 "VF %d attempted to override administratively set VLAN configuration\n"
979 "Reload the VF driver to resume operations\n",
980 vf);
981 return -1;
982 }
983
984 /* VLAN 0 is a special case, don't allow it to be removed */
985 if (!vid && !add)
986 return 0;
987
988 return ixgbe_set_vf_vlan(adapter, add, vid, vf);
989}
990
991static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
992 u32 *msgbuf, u32 vf)
993{
994 u8 *new_mac = ((u8 *)(&msgbuf[1]));
995 int index = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
996 int err;
997
998 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
999 index > 0) {
1000 e_warn(drv,
1001 "VF %d requested MACVLAN filter but is administratively denied\n",
1002 vf);
1003 return -1;
1004 }
1005
1006 /* An non-zero index indicates the VF is setting a filter */
1007 if (index) {
1008 if (!is_valid_ether_addr(new_mac)) {
1009 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
1010 return -1;
1011 }
1012
1013 /*
1014 * If the VF is allowed to set MAC filters then turn off
1015 * anti-spoofing to avoid false positives.
1016 */
1017 if (adapter->vfinfo[vf].spoofchk_enabled) {
1018 struct ixgbe_hw *hw = &adapter->hw;
1019
1020 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
1021 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1022 }
1023 }
1024
1025 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1026 if (err == -ENOSPC)
1027 e_warn(drv,
1028 "VF %d has requested a MACVLAN filter but there is no space for it\n",
1029 vf);
1030
1031 return err < 0;
1032}
1033
1034static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1035 u32 *msgbuf, u32 vf)
1036{
1037 int api = msgbuf[1];
1038
1039 switch (api) {
1040 case ixgbe_mbox_api_10:
1041 case ixgbe_mbox_api_11:
1042 case ixgbe_mbox_api_12:
1043 case ixgbe_mbox_api_13:
1044 case ixgbe_mbox_api_14:
1045 adapter->vfinfo[vf].vf_api = api;
1046 return 0;
1047 default:
1048 break;
1049 }
1050
1051 e_dbg(drv, "VF %d requested unsupported api version %u\n", vf, api);
1052
1053 return -1;
1054}
1055
1056static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1057 u32 *msgbuf, u32 vf)
1058{
1059 struct net_device *dev = adapter->netdev;
1060 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1061 unsigned int default_tc = 0;
1062 u8 num_tcs = adapter->hw_tcs;
1063
1064 /* verify the PF is supporting the correct APIs */
1065 switch (adapter->vfinfo[vf].vf_api) {
1066 case ixgbe_mbox_api_20:
1067 case ixgbe_mbox_api_11:
1068 case ixgbe_mbox_api_12:
1069 case ixgbe_mbox_api_13:
1070 case ixgbe_mbox_api_14:
1071 break;
1072 default:
1073 return -1;
1074 }
1075
1076 /* only allow 1 Tx queue for bandwidth limiting */
1077 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1078 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1079
1080 /* if TCs > 1 determine which TC belongs to default user priority */
1081 if (num_tcs > 1)
1082 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1083
1084 /* notify VF of need for VLAN tag stripping, and correct queue */
1085 if (num_tcs)
1086 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1087 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1088 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1089 else
1090 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1091
1092 /* notify VF of default queue */
1093 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1094
1095 return 0;
1096}
1097
1098static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1099{
1100 u32 i, j;
1101 u32 *out_buf = &msgbuf[1];
1102 const u8 *reta = adapter->rss_indir_tbl;
1103 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1104
1105 /* Check if operation is permitted */
1106 if (!adapter->vfinfo[vf].rss_query_enabled)
1107 return -EPERM;
1108
1109 /* verify the PF is supporting the correct API */
1110 switch (adapter->vfinfo[vf].vf_api) {
1111 case ixgbe_mbox_api_14:
1112 case ixgbe_mbox_api_13:
1113 case ixgbe_mbox_api_12:
1114 break;
1115 default:
1116 return -EOPNOTSUPP;
1117 }
1118
1119 /* This mailbox command is supported (required) only for 82599 and x540
1120 * VFs which support up to 4 RSS queues. Therefore we will compress the
1121 * RETA by saving only 2 bits from each entry. This way we will be able
1122 * to transfer the whole RETA in a single mailbox operation.
1123 */
1124 for (i = 0; i < reta_size / 16; i++) {
1125 out_buf[i] = 0;
1126 for (j = 0; j < 16; j++)
1127 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1128 }
1129
1130 return 0;
1131}
1132
1133static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1134 u32 *msgbuf, u32 vf)
1135{
1136 u32 *rss_key = &msgbuf[1];
1137
1138 /* Check if the operation is permitted */
1139 if (!adapter->vfinfo[vf].rss_query_enabled)
1140 return -EPERM;
1141
1142 /* verify the PF is supporting the correct API */
1143 switch (adapter->vfinfo[vf].vf_api) {
1144 case ixgbe_mbox_api_14:
1145 case ixgbe_mbox_api_13:
1146 case ixgbe_mbox_api_12:
1147 break;
1148 default:
1149 return -EOPNOTSUPP;
1150 }
1151
1152 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1153
1154 return 0;
1155}
1156
1157static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1158 u32 *msgbuf, u32 vf)
1159{
1160 struct ixgbe_hw *hw = &adapter->hw;
1161 int xcast_mode = msgbuf[1];
1162 u32 vmolr, fctrl, disable, enable;
1163
1164 /* verify the PF is supporting the correct APIs */
1165 switch (adapter->vfinfo[vf].vf_api) {
1166 case ixgbe_mbox_api_12:
1167 /* promisc introduced in 1.3 version */
1168 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1169 return -EOPNOTSUPP;
1170 fallthrough;
1171 case ixgbe_mbox_api_13:
1172 case ixgbe_mbox_api_14:
1173 break;
1174 default:
1175 return -EOPNOTSUPP;
1176 }
1177
1178 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1179 !adapter->vfinfo[vf].trusted) {
1180 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1181 }
1182
1183 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1184 goto out;
1185
1186 switch (xcast_mode) {
1187 case IXGBEVF_XCAST_MODE_NONE:
1188 disable = IXGBE_VMOLR_ROMPE |
1189 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1190 enable = IXGBE_VMOLR_BAM;
1191 break;
1192 case IXGBEVF_XCAST_MODE_MULTI:
1193 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1194 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1195 break;
1196 case IXGBEVF_XCAST_MODE_ALLMULTI:
1197 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1198 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1199 break;
1200 case IXGBEVF_XCAST_MODE_PROMISC:
1201 if (hw->mac.type <= ixgbe_mac_82599EB)
1202 return -EOPNOTSUPP;
1203
1204 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1205 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1206 /* VF promisc requires PF in promisc */
1207 e_warn(drv,
1208 "Enabling VF promisc requires PF in promisc\n");
1209 return -EPERM;
1210 }
1211
1212 disable = IXGBE_VMOLR_VPE;
1213 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1214 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1215 break;
1216 default:
1217 return -EOPNOTSUPP;
1218 }
1219
1220 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1221 vmolr &= ~disable;
1222 vmolr |= enable;
1223 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1224
1225 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1226
1227out:
1228 msgbuf[1] = xcast_mode;
1229
1230 return 0;
1231}
1232
1233static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter,
1234 u32 *msgbuf, u32 vf)
1235{
1236 u32 *link_state = &msgbuf[1];
1237
1238 /* verify the PF is supporting the correct API */
1239 switch (adapter->vfinfo[vf].vf_api) {
1240 case ixgbe_mbox_api_12:
1241 case ixgbe_mbox_api_13:
1242 case ixgbe_mbox_api_14:
1243 break;
1244 default:
1245 return -EOPNOTSUPP;
1246 }
1247
1248 *link_state = adapter->vfinfo[vf].link_enable;
1249
1250 return 0;
1251}
1252
1253static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1254{
1255 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1256 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1257 struct ixgbe_hw *hw = &adapter->hw;
1258 int retval;
1259
1260 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1261
1262 if (retval) {
1263 pr_err("Error receiving message from VF\n");
1264 return retval;
1265 }
1266
1267 /* this is a message we already processed, do nothing */
1268 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1269 return 0;
1270
1271 /* flush the ack before we write any messages back */
1272 IXGBE_WRITE_FLUSH(hw);
1273
1274 if (msgbuf[0] == IXGBE_VF_RESET)
1275 return ixgbe_vf_reset_msg(adapter, vf);
1276
1277 /*
1278 * until the vf completes a virtual function reset it should not be
1279 * allowed to start any configuration.
1280 */
1281 if (!adapter->vfinfo[vf].clear_to_send) {
1282 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1283 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1284 return 0;
1285 }
1286
1287 switch ((msgbuf[0] & 0xFFFF)) {
1288 case IXGBE_VF_SET_MAC_ADDR:
1289 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1290 break;
1291 case IXGBE_VF_SET_MULTICAST:
1292 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1293 break;
1294 case IXGBE_VF_SET_VLAN:
1295 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1296 break;
1297 case IXGBE_VF_SET_LPE:
1298 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1299 break;
1300 case IXGBE_VF_SET_MACVLAN:
1301 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1302 break;
1303 case IXGBE_VF_API_NEGOTIATE:
1304 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1305 break;
1306 case IXGBE_VF_GET_QUEUES:
1307 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1308 break;
1309 case IXGBE_VF_GET_RETA:
1310 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1311 break;
1312 case IXGBE_VF_GET_RSS_KEY:
1313 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1314 break;
1315 case IXGBE_VF_UPDATE_XCAST_MODE:
1316 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1317 break;
1318 case IXGBE_VF_GET_LINK_STATE:
1319 retval = ixgbe_get_vf_link_state(adapter, msgbuf, vf);
1320 break;
1321 case IXGBE_VF_IPSEC_ADD:
1322 retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf);
1323 break;
1324 case IXGBE_VF_IPSEC_DEL:
1325 retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf);
1326 break;
1327 default:
1328 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1329 retval = -EIO;
1330 break;
1331 }
1332
1333 /* notify the VF of the results of what it sent us */
1334 if (retval)
1335 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1336 else
1337 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1338
1339 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1340
1341 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1342
1343 return retval;
1344}
1345
1346static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1347{
1348 struct ixgbe_hw *hw = &adapter->hw;
1349 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1350
1351 /* if device isn't clear to send it shouldn't be reading either */
1352 if (!adapter->vfinfo[vf].clear_to_send)
1353 ixgbe_write_mbx(hw, &msg, 1, vf);
1354}
1355
1356void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1357{
1358 struct ixgbe_hw *hw = &adapter->hw;
1359 unsigned long flags;
1360 u32 vf;
1361
1362 spin_lock_irqsave(&adapter->vfs_lock, flags);
1363 for (vf = 0; vf < adapter->num_vfs; vf++) {
1364 /* process any reset requests */
1365 if (!ixgbe_check_for_rst(hw, vf))
1366 ixgbe_vf_reset_event(adapter, vf);
1367
1368 /* process any messages pending */
1369 if (!ixgbe_check_for_msg(hw, vf))
1370 ixgbe_rcv_msg_from_vf(adapter, vf);
1371
1372 /* process any acks */
1373 if (!ixgbe_check_for_ack(hw, vf))
1374 ixgbe_rcv_ack_from_vf(adapter, vf);
1375 }
1376 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
1377}
1378
1379static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1380{
1381 struct ixgbe_hw *hw = &adapter->hw;
1382 u32 ping;
1383
1384 ping = IXGBE_PF_CONTROL_MSG;
1385 if (adapter->vfinfo[vf].clear_to_send)
1386 ping |= IXGBE_VT_MSGTYPE_CTS;
1387 ixgbe_write_mbx(hw, &ping, 1, vf);
1388}
1389
1390void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1391{
1392 struct ixgbe_hw *hw = &adapter->hw;
1393 u32 ping;
1394 int i;
1395
1396 for (i = 0 ; i < adapter->num_vfs; i++) {
1397 ping = IXGBE_PF_CONTROL_MSG;
1398 if (adapter->vfinfo[i].clear_to_send)
1399 ping |= IXGBE_VT_MSGTYPE_CTS;
1400 ixgbe_write_mbx(hw, &ping, 1, i);
1401 }
1402}
1403
1404/**
1405 * ixgbe_set_all_vfs - update vfs queues
1406 * @adapter: Pointer to adapter struct
1407 *
1408 * Update setting transmit and receive queues for all vfs
1409 **/
1410void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter)
1411{
1412 int i;
1413
1414 for (i = 0 ; i < adapter->num_vfs; i++)
1415 ixgbe_set_vf_link_state(adapter, i,
1416 adapter->vfinfo[i].link_state);
1417}
1418
1419int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1420{
1421 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1422 int retval;
1423
1424 if (vf >= adapter->num_vfs)
1425 return -EINVAL;
1426
1427 if (is_valid_ether_addr(mac)) {
1428 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1429 mac, vf);
1430 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1431
1432 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1433 if (retval >= 0) {
1434 adapter->vfinfo[vf].pf_set_mac = true;
1435
1436 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1437 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1438 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1439 }
1440 } else {
1441 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1442 }
1443 } else if (is_zero_ether_addr(mac)) {
1444 unsigned char *vf_mac_addr =
1445 adapter->vfinfo[vf].vf_mac_addresses;
1446
1447 /* nothing to do */
1448 if (is_zero_ether_addr(vf_mac_addr))
1449 return 0;
1450
1451 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1452
1453 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1454 if (retval >= 0) {
1455 adapter->vfinfo[vf].pf_set_mac = false;
1456 memcpy(vf_mac_addr, mac, ETH_ALEN);
1457 } else {
1458 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1459 }
1460 } else {
1461 retval = -EINVAL;
1462 }
1463
1464 return retval;
1465}
1466
1467static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1468 u16 vlan, u8 qos)
1469{
1470 struct ixgbe_hw *hw = &adapter->hw;
1471 int err;
1472
1473 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1474 if (err)
1475 goto out;
1476
1477 /* Revoke tagless access via VLAN 0 */
1478 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1479
1480 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1481 ixgbe_set_vmolr(hw, vf, false);
1482
1483 /* enable hide vlan on X550 */
1484 if (hw->mac.type >= ixgbe_mac_X550)
1485 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1486 IXGBE_QDE_HIDE_VLAN);
1487
1488 adapter->vfinfo[vf].pf_vlan = vlan;
1489 adapter->vfinfo[vf].pf_qos = qos;
1490 dev_info(&adapter->pdev->dev,
1491 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1492 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1493 dev_warn(&adapter->pdev->dev,
1494 "The VF VLAN has been set, but the PF device is not up.\n");
1495 dev_warn(&adapter->pdev->dev,
1496 "Bring the PF device up before attempting to use the VF device.\n");
1497 }
1498
1499out:
1500 return err;
1501}
1502
1503static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1504{
1505 struct ixgbe_hw *hw = &adapter->hw;
1506 int err;
1507
1508 err = ixgbe_set_vf_vlan(adapter, false,
1509 adapter->vfinfo[vf].pf_vlan, vf);
1510 /* Restore tagless access via VLAN 0 */
1511 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1512 ixgbe_clear_vmvir(adapter, vf);
1513 ixgbe_set_vmolr(hw, vf, true);
1514
1515 /* disable hide VLAN on X550 */
1516 if (hw->mac.type >= ixgbe_mac_X550)
1517 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1518
1519 adapter->vfinfo[vf].pf_vlan = 0;
1520 adapter->vfinfo[vf].pf_qos = 0;
1521
1522 return err;
1523}
1524
1525int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1526 u8 qos, __be16 vlan_proto)
1527{
1528 int err = 0;
1529 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1530
1531 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1532 return -EINVAL;
1533 if (vlan_proto != htons(ETH_P_8021Q))
1534 return -EPROTONOSUPPORT;
1535 if (vlan || qos) {
1536 /* Check if there is already a port VLAN set, if so
1537 * we have to delete the old one first before we
1538 * can set the new one. The usage model had
1539 * previously assumed the user would delete the
1540 * old port VLAN before setting a new one but this
1541 * is not necessarily the case.
1542 */
1543 if (adapter->vfinfo[vf].pf_vlan)
1544 err = ixgbe_disable_port_vlan(adapter, vf);
1545 if (err)
1546 goto out;
1547 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1548 } else {
1549 err = ixgbe_disable_port_vlan(adapter, vf);
1550 }
1551
1552out:
1553 return err;
1554}
1555
1556int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1557{
1558 switch (adapter->link_speed) {
1559 case IXGBE_LINK_SPEED_100_FULL:
1560 return 100;
1561 case IXGBE_LINK_SPEED_1GB_FULL:
1562 return 1000;
1563 case IXGBE_LINK_SPEED_10GB_FULL:
1564 return 10000;
1565 default:
1566 return 0;
1567 }
1568}
1569
1570static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1571{
1572 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1573 struct ixgbe_hw *hw = &adapter->hw;
1574 u32 bcnrc_val = 0;
1575 u16 queue, queues_per_pool;
1576 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1577
1578 if (tx_rate) {
1579 /* start with base link speed value */
1580 bcnrc_val = adapter->vf_rate_link_speed;
1581
1582 /* Calculate the rate factor values to set */
1583 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1584 bcnrc_val /= tx_rate;
1585
1586 /* clear everything but the rate factor */
1587 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1588 IXGBE_RTTBCNRC_RF_DEC_MASK;
1589
1590 /* enable the rate scheduler */
1591 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1592 }
1593
1594 /*
1595 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1596 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1597 * and 0x004 otherwise.
1598 */
1599 switch (hw->mac.type) {
1600 case ixgbe_mac_82599EB:
1601 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1602 break;
1603 case ixgbe_mac_X540:
1604 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1605 break;
1606 default:
1607 break;
1608 }
1609
1610 /* determine how many queues per pool based on VMDq mask */
1611 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1612
1613 /* write value for all Tx queues belonging to VF */
1614 for (queue = 0; queue < queues_per_pool; queue++) {
1615 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1616
1617 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1618 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1619 }
1620}
1621
1622void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1623{
1624 int i;
1625
1626 /* VF Tx rate limit was not set */
1627 if (!adapter->vf_rate_link_speed)
1628 return;
1629
1630 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1631 adapter->vf_rate_link_speed = 0;
1632 dev_info(&adapter->pdev->dev,
1633 "Link speed has been changed. VF Transmit rate is disabled\n");
1634 }
1635
1636 for (i = 0; i < adapter->num_vfs; i++) {
1637 if (!adapter->vf_rate_link_speed)
1638 adapter->vfinfo[i].tx_rate = 0;
1639
1640 ixgbe_set_vf_rate_limit(adapter, i);
1641 }
1642}
1643
1644int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1645 int max_tx_rate)
1646{
1647 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1648 int link_speed;
1649
1650 /* verify VF is active */
1651 if (vf >= adapter->num_vfs)
1652 return -EINVAL;
1653
1654 /* verify link is up */
1655 if (!adapter->link_up)
1656 return -EINVAL;
1657
1658 /* verify we are linked at 10Gbps */
1659 link_speed = ixgbe_link_mbps(adapter);
1660 if (link_speed != 10000)
1661 return -EINVAL;
1662
1663 if (min_tx_rate)
1664 return -EINVAL;
1665
1666 /* rate limit cannot be less than 10Mbs or greater than link speed */
1667 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1668 return -EINVAL;
1669
1670 /* store values */
1671 adapter->vf_rate_link_speed = link_speed;
1672 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1673
1674 /* update hardware configuration */
1675 ixgbe_set_vf_rate_limit(adapter, vf);
1676
1677 return 0;
1678}
1679
1680int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1681{
1682 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1683 struct ixgbe_hw *hw = &adapter->hw;
1684
1685 if (vf >= adapter->num_vfs)
1686 return -EINVAL;
1687
1688 adapter->vfinfo[vf].spoofchk_enabled = setting;
1689
1690 /* configure MAC spoofing */
1691 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1692
1693 /* configure VLAN spoofing */
1694 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1695
1696 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1697 * calling set_ethertype_anti_spoofing for each VF in loop below
1698 */
1699 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1700 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1701 (IXGBE_ETQF_FILTER_EN |
1702 IXGBE_ETQF_TX_ANTISPOOF |
1703 ETH_P_LLDP));
1704
1705 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1706 (IXGBE_ETQF_FILTER_EN |
1707 IXGBE_ETQF_TX_ANTISPOOF |
1708 ETH_P_PAUSE));
1709
1710 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1711 }
1712
1713 return 0;
1714}
1715
1716/**
1717 * ixgbe_set_vf_link_state - Set link state
1718 * @adapter: Pointer to adapter struct
1719 * @vf: VF identifier
1720 * @state: required link state
1721 *
1722 * Set a link force state on/off a single vf
1723 **/
1724void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state)
1725{
1726 adapter->vfinfo[vf].link_state = state;
1727
1728 switch (state) {
1729 case IFLA_VF_LINK_STATE_AUTO:
1730 if (test_bit(__IXGBE_DOWN, &adapter->state))
1731 adapter->vfinfo[vf].link_enable = false;
1732 else
1733 adapter->vfinfo[vf].link_enable = true;
1734 break;
1735 case IFLA_VF_LINK_STATE_ENABLE:
1736 adapter->vfinfo[vf].link_enable = true;
1737 break;
1738 case IFLA_VF_LINK_STATE_DISABLE:
1739 adapter->vfinfo[vf].link_enable = false;
1740 break;
1741 }
1742
1743 ixgbe_set_vf_rx_tx(adapter, vf);
1744
1745 /* restart the VF */
1746 adapter->vfinfo[vf].clear_to_send = false;
1747 ixgbe_ping_vf(adapter, vf);
1748}
1749
1750/**
1751 * ixgbe_ndo_set_vf_link_state - Set link state
1752 * @netdev: network interface device structure
1753 * @vf: VF identifier
1754 * @state: required link state
1755 *
1756 * Set the link state of a specified VF, regardless of physical link state
1757 **/
1758int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state)
1759{
1760 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1761 int ret = 0;
1762
1763 if (vf < 0 || vf >= adapter->num_vfs) {
1764 dev_err(&adapter->pdev->dev,
1765 "NDO set VF link - invalid VF identifier %d\n", vf);
1766 return -EINVAL;
1767 }
1768
1769 switch (state) {
1770 case IFLA_VF_LINK_STATE_ENABLE:
1771 dev_info(&adapter->pdev->dev,
1772 "NDO set VF %d link state %d - not supported\n",
1773 vf, state);
1774 break;
1775 case IFLA_VF_LINK_STATE_DISABLE:
1776 dev_info(&adapter->pdev->dev,
1777 "NDO set VF %d link state disable\n", vf);
1778 ixgbe_set_vf_link_state(adapter, vf, state);
1779 break;
1780 case IFLA_VF_LINK_STATE_AUTO:
1781 dev_info(&adapter->pdev->dev,
1782 "NDO set VF %d link state auto\n", vf);
1783 ixgbe_set_vf_link_state(adapter, vf, state);
1784 break;
1785 default:
1786 dev_err(&adapter->pdev->dev,
1787 "NDO set VF %d - invalid link state %d\n", vf, state);
1788 ret = -EINVAL;
1789 }
1790
1791 return ret;
1792}
1793
1794int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1795 bool setting)
1796{
1797 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1798
1799 /* This operation is currently supported only for 82599 and x540
1800 * devices.
1801 */
1802 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1803 adapter->hw.mac.type >= ixgbe_mac_X550)
1804 return -EOPNOTSUPP;
1805
1806 if (vf >= adapter->num_vfs)
1807 return -EINVAL;
1808
1809 adapter->vfinfo[vf].rss_query_enabled = setting;
1810
1811 return 0;
1812}
1813
1814int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1815{
1816 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1817
1818 if (vf >= adapter->num_vfs)
1819 return -EINVAL;
1820
1821 /* nothing to do */
1822 if (adapter->vfinfo[vf].trusted == setting)
1823 return 0;
1824
1825 adapter->vfinfo[vf].trusted = setting;
1826
1827 /* reset VF to reconfigure features */
1828 adapter->vfinfo[vf].clear_to_send = false;
1829 ixgbe_ping_vf(adapter, vf);
1830
1831 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1832
1833 return 0;
1834}
1835
1836int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1837 int vf, struct ifla_vf_info *ivi)
1838{
1839 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1840 if (vf >= adapter->num_vfs)
1841 return -EINVAL;
1842 ivi->vf = vf;
1843 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1844 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1845 ivi->min_tx_rate = 0;
1846 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1847 ivi->qos = adapter->vfinfo[vf].pf_qos;
1848 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1849 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1850 ivi->trusted = adapter->vfinfo[vf].trusted;
1851 ivi->linkstate = adapter->vfinfo[vf].link_state;
1852 return 0;
1853}
1/*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2013 Intel Corporation.
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 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26
27*******************************************************************************/
28
29#include <linux/types.h>
30#include <linux/module.h>
31#include <linux/pci.h>
32#include <linux/netdevice.h>
33#include <linux/vmalloc.h>
34#include <linux/string.h>
35#include <linux/in.h>
36#include <linux/ip.h>
37#include <linux/tcp.h>
38#include <linux/ipv6.h>
39#ifdef NETIF_F_HW_VLAN_CTAG_TX
40#include <linux/if_vlan.h>
41#endif
42
43#include "ixgbe.h"
44#include "ixgbe_type.h"
45#include "ixgbe_sriov.h"
46
47#ifdef CONFIG_PCI_IOV
48static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
49{
50 struct ixgbe_hw *hw = &adapter->hw;
51 int num_vf_macvlans, i;
52 struct vf_macvlans *mv_list;
53
54 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
55 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs);
56
57 /* Enable VMDq flag so device will be set in VM mode */
58 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED;
59 if (!adapter->ring_feature[RING_F_VMDQ].limit)
60 adapter->ring_feature[RING_F_VMDQ].limit = 1;
61 adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs;
62
63 num_vf_macvlans = hw->mac.num_rar_entries -
64 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
65
66 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans,
67 sizeof(struct vf_macvlans),
68 GFP_KERNEL);
69 if (mv_list) {
70 /* Initialize list of VF macvlans */
71 INIT_LIST_HEAD(&adapter->vf_mvs.l);
72 for (i = 0; i < num_vf_macvlans; i++) {
73 mv_list->vf = -1;
74 mv_list->free = true;
75 mv_list->rar_entry = hw->mac.num_rar_entries -
76 (i + adapter->num_vfs + 1);
77 list_add(&mv_list->l, &adapter->vf_mvs.l);
78 mv_list++;
79 }
80 }
81
82 /* Initialize default switching mode VEB */
83 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
84 adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB;
85
86 /* If call to enable VFs succeeded then allocate memory
87 * for per VF control structures.
88 */
89 adapter->vfinfo =
90 kcalloc(adapter->num_vfs,
91 sizeof(struct vf_data_storage), GFP_KERNEL);
92 if (adapter->vfinfo) {
93 /* limit trafffic classes based on VFs enabled */
94 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) &&
95 (adapter->num_vfs < 16)) {
96 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
97 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
98 } else if (adapter->num_vfs < 32) {
99 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
100 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
101 } else {
102 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
103 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
104 }
105
106 /* We do not support RSS w/ SR-IOV */
107 adapter->ring_feature[RING_F_RSS].limit = 1;
108
109 /* Disable RSC when in SR-IOV mode */
110 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
111 IXGBE_FLAG2_RSC_ENABLED);
112
113 /* enable spoof checking for all VFs */
114 for (i = 0; i < adapter->num_vfs; i++)
115 adapter->vfinfo[i].spoofchk_enabled = true;
116 return 0;
117 }
118
119 return -ENOMEM;
120}
121
122/* Note this function is called when the user wants to enable SR-IOV
123 * VFs using the now deprecated module parameter
124 */
125void ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
126{
127 int pre_existing_vfs = 0;
128
129 pre_existing_vfs = pci_num_vf(adapter->pdev);
130 if (!pre_existing_vfs && !adapter->num_vfs)
131 return;
132
133 /* If there are pre-existing VFs then we have to force
134 * use of that many - over ride any module parameter value.
135 * This may result from the user unloading the PF driver
136 * while VFs were assigned to guest VMs or because the VFs
137 * have been created via the new PCI SR-IOV sysfs interface.
138 */
139 if (pre_existing_vfs) {
140 adapter->num_vfs = pre_existing_vfs;
141 dev_warn(&adapter->pdev->dev,
142 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
143 } else {
144 int err;
145 /*
146 * The 82599 supports up to 64 VFs per physical function
147 * but this implementation limits allocation to 63 so that
148 * basic networking resources are still available to the
149 * physical function. If the user requests greater thn
150 * 63 VFs then it is an error - reset to default of zero.
151 */
152 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
153
154 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
155 if (err) {
156 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
157 adapter->num_vfs = 0;
158 return;
159 }
160 }
161
162 if (!__ixgbe_enable_sriov(adapter))
163 return;
164
165 /* If we have gotten to this point then there is no memory available
166 * to manage the VF devices - print message and bail.
167 */
168 e_err(probe, "Unable to allocate memory for VF Data Storage - "
169 "SRIOV disabled\n");
170 ixgbe_disable_sriov(adapter);
171}
172
173#endif /* #ifdef CONFIG_PCI_IOV */
174int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
175{
176 struct ixgbe_hw *hw = &adapter->hw;
177 u32 gpie;
178 u32 vmdctl;
179 int rss;
180
181 /* set num VFs to 0 to prevent access to vfinfo */
182 adapter->num_vfs = 0;
183
184 /* free VF control structures */
185 kfree(adapter->vfinfo);
186 adapter->vfinfo = NULL;
187
188 /* free macvlan list */
189 kfree(adapter->mv_list);
190 adapter->mv_list = NULL;
191
192 /* if SR-IOV is already disabled then there is nothing to do */
193 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
194 return 0;
195
196#ifdef CONFIG_PCI_IOV
197 /*
198 * If our VFs are assigned we cannot shut down SR-IOV
199 * without causing issues, so just leave the hardware
200 * available but disabled
201 */
202 if (pci_vfs_assigned(adapter->pdev)) {
203 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
204 return -EPERM;
205 }
206 /* disable iov and allow time for transactions to clear */
207 pci_disable_sriov(adapter->pdev);
208#endif
209
210 /* turn off device IOV mode */
211 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0);
212 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
213 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
214 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
215
216 /* set default pool back to 0 */
217 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
218 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
219 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
220 IXGBE_WRITE_FLUSH(hw);
221
222 /* Disable VMDq flag so device will be set in VM mode */
223 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) {
224 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
225 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
226 rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus());
227 } else {
228 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
229 }
230
231 adapter->ring_feature[RING_F_VMDQ].offset = 0;
232 adapter->ring_feature[RING_F_RSS].limit = rss;
233
234 /* take a breather then clean up driver data */
235 msleep(100);
236 return 0;
237}
238
239static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
240{
241#ifdef CONFIG_PCI_IOV
242 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
243 int err = 0;
244 int i;
245 int pre_existing_vfs = pci_num_vf(dev);
246
247 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
248 err = ixgbe_disable_sriov(adapter);
249 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
250 goto out;
251
252 if (err)
253 goto err_out;
254
255 /* While the SR-IOV capability structure reports total VFs to be
256 * 64 we limit the actual number that can be allocated to 63 so
257 * that some transmit/receive resources can be reserved to the
258 * PF. The PCI bus driver already checks for other values out of
259 * range.
260 */
261 if (num_vfs > IXGBE_MAX_VFS_DRV_LIMIT) {
262 err = -EPERM;
263 goto err_out;
264 }
265
266 adapter->num_vfs = num_vfs;
267
268 err = __ixgbe_enable_sriov(adapter);
269 if (err)
270 goto err_out;
271
272 for (i = 0; i < adapter->num_vfs; i++)
273 ixgbe_vf_configuration(dev, (i | 0x10000000));
274
275 err = pci_enable_sriov(dev, num_vfs);
276 if (err) {
277 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
278 goto err_out;
279 }
280 ixgbe_sriov_reinit(adapter);
281
282out:
283 return num_vfs;
284
285err_out:
286 return err;
287#endif
288 return 0;
289}
290
291static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
292{
293 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
294 int err;
295#ifdef CONFIG_PCI_IOV
296 u32 current_flags = adapter->flags;
297#endif
298
299 err = ixgbe_disable_sriov(adapter);
300
301 /* Only reinit if no error and state changed */
302#ifdef CONFIG_PCI_IOV
303 if (!err && current_flags != adapter->flags)
304 ixgbe_sriov_reinit(adapter);
305#endif
306
307 return err;
308}
309
310int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
311{
312 if (num_vfs == 0)
313 return ixgbe_pci_sriov_disable(dev);
314 else
315 return ixgbe_pci_sriov_enable(dev, num_vfs);
316}
317
318static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
319 u32 *msgbuf, u32 vf)
320{
321 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
322 >> IXGBE_VT_MSGINFO_SHIFT;
323 u16 *hash_list = (u16 *)&msgbuf[1];
324 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
325 struct ixgbe_hw *hw = &adapter->hw;
326 int i;
327 u32 vector_bit;
328 u32 vector_reg;
329 u32 mta_reg;
330
331 /* only so many hash values supported */
332 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
333
334 /*
335 * salt away the number of multi cast addresses assigned
336 * to this VF for later use to restore when the PF multi cast
337 * list changes
338 */
339 vfinfo->num_vf_mc_hashes = entries;
340
341 /*
342 * VFs are limited to using the MTA hash table for their multicast
343 * addresses
344 */
345 for (i = 0; i < entries; i++) {
346 vfinfo->vf_mc_hashes[i] = hash_list[i];
347 }
348
349 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
350 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
351 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
352 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
353 mta_reg |= (1 << vector_bit);
354 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
355 }
356
357 return 0;
358}
359
360static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter)
361{
362 struct ixgbe_hw *hw = &adapter->hw;
363 struct list_head *pos;
364 struct vf_macvlans *entry;
365
366 list_for_each(pos, &adapter->vf_mvs.l) {
367 entry = list_entry(pos, struct vf_macvlans, l);
368 if (!entry->free)
369 hw->mac.ops.set_rar(hw, entry->rar_entry,
370 entry->vf_macvlan,
371 entry->vf, IXGBE_RAH_AV);
372 }
373}
374
375void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
376{
377 struct ixgbe_hw *hw = &adapter->hw;
378 struct vf_data_storage *vfinfo;
379 int i, j;
380 u32 vector_bit;
381 u32 vector_reg;
382 u32 mta_reg;
383
384 for (i = 0; i < adapter->num_vfs; i++) {
385 vfinfo = &adapter->vfinfo[i];
386 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
387 hw->addr_ctrl.mta_in_use++;
388 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
389 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
390 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
391 mta_reg |= (1 << vector_bit);
392 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
393 }
394 }
395
396 /* Restore any VF macvlans */
397 ixgbe_restore_vf_macvlans(adapter);
398}
399
400static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
401 u32 vf)
402{
403 /* VLAN 0 is a special case, don't allow it to be removed */
404 if (!vid && !add)
405 return 0;
406
407 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
408}
409
410static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
411{
412 struct ixgbe_hw *hw = &adapter->hw;
413 int max_frame = msgbuf[1];
414 u32 max_frs;
415
416 /*
417 * For 82599EB we have to keep all PFs and VFs operating with
418 * the same max_frame value in order to avoid sending an oversize
419 * frame to a VF. In order to guarantee this is handled correctly
420 * for all cases we have several special exceptions to take into
421 * account before we can enable the VF for receive
422 */
423 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
424 struct net_device *dev = adapter->netdev;
425 int pf_max_frame = dev->mtu + ETH_HLEN;
426 u32 reg_offset, vf_shift, vfre;
427 s32 err = 0;
428
429#ifdef CONFIG_FCOE
430 if (dev->features & NETIF_F_FCOE_MTU)
431 pf_max_frame = max_t(int, pf_max_frame,
432 IXGBE_FCOE_JUMBO_FRAME_SIZE);
433
434#endif /* CONFIG_FCOE */
435 switch (adapter->vfinfo[vf].vf_api) {
436 case ixgbe_mbox_api_11:
437 /*
438 * Version 1.1 supports jumbo frames on VFs if PF has
439 * jumbo frames enabled which means legacy VFs are
440 * disabled
441 */
442 if (pf_max_frame > ETH_FRAME_LEN)
443 break;
444 default:
445 /*
446 * If the PF or VF are running w/ jumbo frames enabled
447 * we need to shut down the VF Rx path as we cannot
448 * support jumbo frames on legacy VFs
449 */
450 if ((pf_max_frame > ETH_FRAME_LEN) ||
451 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
452 err = -EINVAL;
453 break;
454 }
455
456 /* determine VF receive enable location */
457 vf_shift = vf % 32;
458 reg_offset = vf / 32;
459
460 /* enable or disable receive depending on error */
461 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
462 if (err)
463 vfre &= ~(1 << vf_shift);
464 else
465 vfre |= 1 << vf_shift;
466 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
467
468 if (err) {
469 e_err(drv, "VF max_frame %d out of range\n", max_frame);
470 return err;
471 }
472 }
473
474 /* MTU < 68 is an error and causes problems on some kernels */
475 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
476 e_err(drv, "VF max_frame %d out of range\n", max_frame);
477 return -EINVAL;
478 }
479
480 /* pull current max frame size from hardware */
481 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
482 max_frs &= IXGBE_MHADD_MFS_MASK;
483 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
484
485 if (max_frs < max_frame) {
486 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
487 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
488 }
489
490 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
491
492 return 0;
493}
494
495static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
496{
497 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
498 vmolr |= (IXGBE_VMOLR_ROMPE |
499 IXGBE_VMOLR_BAM);
500 if (aupe)
501 vmolr |= IXGBE_VMOLR_AUPE;
502 else
503 vmolr &= ~IXGBE_VMOLR_AUPE;
504 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
505}
506
507static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
508{
509 struct ixgbe_hw *hw = &adapter->hw;
510
511 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
512}
513static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
514{
515 struct ixgbe_hw *hw = &adapter->hw;
516 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
517 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
518 u8 num_tcs = netdev_get_num_tc(adapter->netdev);
519
520 /* add PF assigned VLAN or VLAN 0 */
521 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
522
523 /* reset offloads to defaults */
524 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
525
526 /* set outgoing tags for VFs */
527 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
528 ixgbe_clear_vmvir(adapter, vf);
529 } else {
530 if (vfinfo->pf_qos || !num_tcs)
531 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
532 vfinfo->pf_qos, vf);
533 else
534 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
535 adapter->default_up, vf);
536
537 if (vfinfo->spoofchk_enabled)
538 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
539 }
540
541 /* reset multicast table array for vf */
542 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
543
544 /* Flush and reset the mta with the new values */
545 ixgbe_set_rx_mode(adapter->netdev);
546
547 hw->mac.ops.clear_rar(hw, rar_entry);
548
549 /* reset VF api back to unknown */
550 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
551}
552
553static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
554 int vf, unsigned char *mac_addr)
555{
556 struct ixgbe_hw *hw = &adapter->hw;
557 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
558
559 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN);
560 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
561
562 return 0;
563}
564
565static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
566 int vf, int index, unsigned char *mac_addr)
567{
568 struct ixgbe_hw *hw = &adapter->hw;
569 struct list_head *pos;
570 struct vf_macvlans *entry;
571
572 if (index <= 1) {
573 list_for_each(pos, &adapter->vf_mvs.l) {
574 entry = list_entry(pos, struct vf_macvlans, l);
575 if (entry->vf == vf) {
576 entry->vf = -1;
577 entry->free = true;
578 entry->is_macvlan = false;
579 hw->mac.ops.clear_rar(hw, entry->rar_entry);
580 }
581 }
582 }
583
584 /*
585 * If index was zero then we were asked to clear the uc list
586 * for the VF. We're done.
587 */
588 if (!index)
589 return 0;
590
591 entry = NULL;
592
593 list_for_each(pos, &adapter->vf_mvs.l) {
594 entry = list_entry(pos, struct vf_macvlans, l);
595 if (entry->free)
596 break;
597 }
598
599 /*
600 * If we traversed the entire list and didn't find a free entry
601 * then we're out of space on the RAR table. Also entry may
602 * be NULL because the original memory allocation for the list
603 * failed, which is not fatal but does mean we can't support
604 * VF requests for MACVLAN because we couldn't allocate
605 * memory for the list management required.
606 */
607 if (!entry || !entry->free)
608 return -ENOSPC;
609
610 entry->free = false;
611 entry->is_macvlan = true;
612 entry->vf = vf;
613 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
614
615 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV);
616
617 return 0;
618}
619
620int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
621{
622 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
623 unsigned int vfn = (event_mask & 0x3f);
624
625 bool enable = ((event_mask & 0x10000000U) != 0);
626
627 if (enable)
628 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
629
630 return 0;
631}
632
633static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
634{
635 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
636 struct ixgbe_hw *hw = &adapter->hw;
637 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
638 u32 reg, reg_offset, vf_shift;
639 u32 msgbuf[4] = {0, 0, 0, 0};
640 u8 *addr = (u8 *)(&msgbuf[1]);
641 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
642 int i;
643
644 e_info(probe, "VF Reset msg received from vf %d\n", vf);
645
646 /* reset the filters for the device */
647 ixgbe_vf_reset_event(adapter, vf);
648
649 /* set vf mac address */
650 if (!is_zero_ether_addr(vf_mac))
651 ixgbe_set_vf_mac(adapter, vf, vf_mac);
652
653 vf_shift = vf % 32;
654 reg_offset = vf / 32;
655
656 /* enable transmit for vf */
657 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
658 reg |= 1 << vf_shift;
659 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
660
661 /* force drop enable for all VF Rx queues */
662 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
663 /* flush previous write */
664 IXGBE_WRITE_FLUSH(hw);
665
666 /* indicate to hardware that we want to set drop enable */
667 reg = IXGBE_QDE_WRITE | IXGBE_QDE_ENABLE;
668 reg |= i << IXGBE_QDE_IDX_SHIFT;
669 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
670 }
671
672 /* enable receive for vf */
673 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
674 reg |= 1 << vf_shift;
675 /*
676 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
677 * For more info take a look at ixgbe_set_vf_lpe
678 */
679 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
680 struct net_device *dev = adapter->netdev;
681 int pf_max_frame = dev->mtu + ETH_HLEN;
682
683#ifdef CONFIG_FCOE
684 if (dev->features & NETIF_F_FCOE_MTU)
685 pf_max_frame = max_t(int, pf_max_frame,
686 IXGBE_FCOE_JUMBO_FRAME_SIZE);
687
688#endif /* CONFIG_FCOE */
689 if (pf_max_frame > ETH_FRAME_LEN)
690 reg &= ~(1 << vf_shift);
691 }
692 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
693
694 /* enable VF mailbox for further messages */
695 adapter->vfinfo[vf].clear_to_send = true;
696
697 /* Enable counting of spoofed packets in the SSVPC register */
698 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
699 reg |= (1 << vf_shift);
700 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
701
702 /*
703 * Reset the VFs TDWBAL and TDWBAH registers
704 * which are not cleared by an FLR
705 */
706 for (i = 0; i < q_per_pool; i++) {
707 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
708 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
709 }
710
711 /* reply to reset with ack and vf mac address */
712 msgbuf[0] = IXGBE_VF_RESET;
713 if (!is_zero_ether_addr(vf_mac)) {
714 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
715 memcpy(addr, vf_mac, ETH_ALEN);
716 } else {
717 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
718 dev_warn(&adapter->pdev->dev,
719 "VF %d has no MAC address assigned, you may have to assign one manually\n",
720 vf);
721 }
722
723 /*
724 * Piggyback the multicast filter type so VF can compute the
725 * correct vectors
726 */
727 msgbuf[3] = hw->mac.mc_filter_type;
728 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
729
730 return 0;
731}
732
733static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
734 u32 *msgbuf, u32 vf)
735{
736 u8 *new_mac = ((u8 *)(&msgbuf[1]));
737
738 if (!is_valid_ether_addr(new_mac)) {
739 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
740 return -1;
741 }
742
743 if (adapter->vfinfo[vf].pf_set_mac &&
744 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
745 e_warn(drv,
746 "VF %d attempted to override administratively set MAC address\n"
747 "Reload the VF driver to resume operations\n",
748 vf);
749 return -1;
750 }
751
752 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
753}
754
755static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan)
756{
757 u32 vlvf;
758 s32 regindex;
759
760 /* short cut the special case */
761 if (vlan == 0)
762 return 0;
763
764 /* Search for the vlan id in the VLVF entries */
765 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) {
766 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex));
767 if ((vlvf & VLAN_VID_MASK) == vlan)
768 break;
769 }
770
771 /* Return a negative value if not found */
772 if (regindex >= IXGBE_VLVF_ENTRIES)
773 regindex = -1;
774
775 return regindex;
776}
777
778static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
779 u32 *msgbuf, u32 vf)
780{
781 struct ixgbe_hw *hw = &adapter->hw;
782 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
783 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
784 int err;
785 s32 reg_ndx;
786 u32 vlvf;
787 u32 bits;
788 u8 tcs = netdev_get_num_tc(adapter->netdev);
789
790 if (adapter->vfinfo[vf].pf_vlan || tcs) {
791 e_warn(drv,
792 "VF %d attempted to override administratively set VLAN configuration\n"
793 "Reload the VF driver to resume operations\n",
794 vf);
795 return -1;
796 }
797
798 if (add)
799 adapter->vfinfo[vf].vlan_count++;
800 else if (adapter->vfinfo[vf].vlan_count)
801 adapter->vfinfo[vf].vlan_count--;
802
803 /* in case of promiscuous mode any VLAN filter set for a VF must
804 * also have the PF pool added to it.
805 */
806 if (add && adapter->netdev->flags & IFF_PROMISC)
807 err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0));
808
809 err = ixgbe_set_vf_vlan(adapter, add, vid, vf);
810 if (!err && adapter->vfinfo[vf].spoofchk_enabled)
811 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
812
813 /* Go through all the checks to see if the VLAN filter should
814 * be wiped completely.
815 */
816 if (!add && adapter->netdev->flags & IFF_PROMISC) {
817 reg_ndx = ixgbe_find_vlvf_entry(hw, vid);
818 if (reg_ndx < 0)
819 goto out;
820 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx));
821 /* See if any other pools are set for this VLAN filter
822 * entry other than the PF.
823 */
824 if (VMDQ_P(0) < 32) {
825 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2));
826 bits &= ~(1 << VMDQ_P(0));
827 bits |= IXGBE_READ_REG(hw,
828 IXGBE_VLVFB(reg_ndx * 2) + 1);
829 } else {
830 bits = IXGBE_READ_REG(hw,
831 IXGBE_VLVFB(reg_ndx * 2) + 1);
832 bits &= ~(1 << (VMDQ_P(0) - 32));
833 bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2));
834 }
835
836 /* If the filter was removed then ensure PF pool bit
837 * is cleared if the PF only added itself to the pool
838 * because the PF is in promiscuous mode.
839 */
840 if ((vlvf & VLAN_VID_MASK) == vid &&
841 !test_bit(vid, adapter->active_vlans) && !bits)
842 ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0));
843 }
844
845out:
846
847 return err;
848}
849
850static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
851 u32 *msgbuf, u32 vf)
852{
853 u8 *new_mac = ((u8 *)(&msgbuf[1]));
854 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
855 IXGBE_VT_MSGINFO_SHIFT;
856 int err;
857
858 if (adapter->vfinfo[vf].pf_set_mac && index > 0) {
859 e_warn(drv,
860 "VF %d requested MACVLAN filter but is administratively denied\n",
861 vf);
862 return -1;
863 }
864
865 /* An non-zero index indicates the VF is setting a filter */
866 if (index) {
867 if (!is_valid_ether_addr(new_mac)) {
868 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
869 return -1;
870 }
871
872 /*
873 * If the VF is allowed to set MAC filters then turn off
874 * anti-spoofing to avoid false positives.
875 */
876 if (adapter->vfinfo[vf].spoofchk_enabled)
877 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false);
878 }
879
880 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
881 if (err == -ENOSPC)
882 e_warn(drv,
883 "VF %d has requested a MACVLAN filter but there is no space for it\n",
884 vf);
885
886 return err < 0;
887}
888
889static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
890 u32 *msgbuf, u32 vf)
891{
892 int api = msgbuf[1];
893
894 switch (api) {
895 case ixgbe_mbox_api_10:
896 case ixgbe_mbox_api_11:
897 adapter->vfinfo[vf].vf_api = api;
898 return 0;
899 default:
900 break;
901 }
902
903 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
904
905 return -1;
906}
907
908static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
909 u32 *msgbuf, u32 vf)
910{
911 struct net_device *dev = adapter->netdev;
912 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
913 unsigned int default_tc = 0;
914 u8 num_tcs = netdev_get_num_tc(dev);
915
916 /* verify the PF is supporting the correct APIs */
917 switch (adapter->vfinfo[vf].vf_api) {
918 case ixgbe_mbox_api_20:
919 case ixgbe_mbox_api_11:
920 break;
921 default:
922 return -1;
923 }
924
925 /* only allow 1 Tx queue for bandwidth limiting */
926 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
927 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
928
929 /* if TCs > 1 determine which TC belongs to default user priority */
930 if (num_tcs > 1)
931 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
932
933 /* notify VF of need for VLAN tag stripping, and correct queue */
934 if (num_tcs)
935 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
936 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
937 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
938 else
939 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
940
941 /* notify VF of default queue */
942 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
943
944 return 0;
945}
946
947static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
948{
949 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
950 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
951 struct ixgbe_hw *hw = &adapter->hw;
952 s32 retval;
953
954 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
955
956 if (retval) {
957 pr_err("Error receiving message from VF\n");
958 return retval;
959 }
960
961 /* this is a message we already processed, do nothing */
962 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
963 return retval;
964
965 /* flush the ack before we write any messages back */
966 IXGBE_WRITE_FLUSH(hw);
967
968 if (msgbuf[0] == IXGBE_VF_RESET)
969 return ixgbe_vf_reset_msg(adapter, vf);
970
971 /*
972 * until the vf completes a virtual function reset it should not be
973 * allowed to start any configuration.
974 */
975 if (!adapter->vfinfo[vf].clear_to_send) {
976 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
977 ixgbe_write_mbx(hw, msgbuf, 1, vf);
978 return retval;
979 }
980
981 switch ((msgbuf[0] & 0xFFFF)) {
982 case IXGBE_VF_SET_MAC_ADDR:
983 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
984 break;
985 case IXGBE_VF_SET_MULTICAST:
986 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
987 break;
988 case IXGBE_VF_SET_VLAN:
989 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
990 break;
991 case IXGBE_VF_SET_LPE:
992 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf);
993 break;
994 case IXGBE_VF_SET_MACVLAN:
995 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
996 break;
997 case IXGBE_VF_API_NEGOTIATE:
998 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
999 break;
1000 case IXGBE_VF_GET_QUEUES:
1001 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1002 break;
1003 default:
1004 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1005 retval = IXGBE_ERR_MBX;
1006 break;
1007 }
1008
1009 /* notify the VF of the results of what it sent us */
1010 if (retval)
1011 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1012 else
1013 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1014
1015 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1016
1017 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1018
1019 return retval;
1020}
1021
1022static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1023{
1024 struct ixgbe_hw *hw = &adapter->hw;
1025 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1026
1027 /* if device isn't clear to send it shouldn't be reading either */
1028 if (!adapter->vfinfo[vf].clear_to_send)
1029 ixgbe_write_mbx(hw, &msg, 1, vf);
1030}
1031
1032void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1033{
1034 struct ixgbe_hw *hw = &adapter->hw;
1035 u32 vf;
1036
1037 for (vf = 0; vf < adapter->num_vfs; vf++) {
1038 /* process any reset requests */
1039 if (!ixgbe_check_for_rst(hw, vf))
1040 ixgbe_vf_reset_event(adapter, vf);
1041
1042 /* process any messages pending */
1043 if (!ixgbe_check_for_msg(hw, vf))
1044 ixgbe_rcv_msg_from_vf(adapter, vf);
1045
1046 /* process any acks */
1047 if (!ixgbe_check_for_ack(hw, vf))
1048 ixgbe_rcv_ack_from_vf(adapter, vf);
1049 }
1050}
1051
1052void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1053{
1054 struct ixgbe_hw *hw = &adapter->hw;
1055
1056 /* disable transmit and receive for all vfs */
1057 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1058 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1059
1060 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1061 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1062}
1063
1064void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1065{
1066 struct ixgbe_hw *hw = &adapter->hw;
1067 u32 ping;
1068 int i;
1069
1070 for (i = 0 ; i < adapter->num_vfs; i++) {
1071 ping = IXGBE_PF_CONTROL_MSG;
1072 if (adapter->vfinfo[i].clear_to_send)
1073 ping |= IXGBE_VT_MSGTYPE_CTS;
1074 ixgbe_write_mbx(hw, &ping, 1, i);
1075 }
1076}
1077
1078int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1079{
1080 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1081 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
1082 return -EINVAL;
1083 adapter->vfinfo[vf].pf_set_mac = true;
1084 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
1085 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
1086 " change effective.");
1087 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1088 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
1089 " but the PF device is not up.\n");
1090 dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
1091 " attempting to use the VF device.\n");
1092 }
1093 return ixgbe_set_vf_mac(adapter, vf, mac);
1094}
1095
1096int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
1097{
1098 int err = 0;
1099 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1100 struct ixgbe_hw *hw = &adapter->hw;
1101
1102 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1103 return -EINVAL;
1104 if (vlan || qos) {
1105 if (adapter->vfinfo[vf].pf_vlan)
1106 err = ixgbe_set_vf_vlan(adapter, false,
1107 adapter->vfinfo[vf].pf_vlan,
1108 vf);
1109 if (err)
1110 goto out;
1111 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1112 if (err)
1113 goto out;
1114 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1115 ixgbe_set_vmolr(hw, vf, false);
1116 if (adapter->vfinfo[vf].spoofchk_enabled)
1117 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
1118 adapter->vfinfo[vf].vlan_count++;
1119 adapter->vfinfo[vf].pf_vlan = vlan;
1120 adapter->vfinfo[vf].pf_qos = qos;
1121 dev_info(&adapter->pdev->dev,
1122 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1123 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1124 dev_warn(&adapter->pdev->dev,
1125 "The VF VLAN has been set,"
1126 " but the PF device is not up.\n");
1127 dev_warn(&adapter->pdev->dev,
1128 "Bring the PF device up before"
1129 " attempting to use the VF device.\n");
1130 }
1131 } else {
1132 err = ixgbe_set_vf_vlan(adapter, false,
1133 adapter->vfinfo[vf].pf_vlan, vf);
1134 ixgbe_clear_vmvir(adapter, vf);
1135 ixgbe_set_vmolr(hw, vf, true);
1136 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1137 if (adapter->vfinfo[vf].vlan_count)
1138 adapter->vfinfo[vf].vlan_count--;
1139 adapter->vfinfo[vf].pf_vlan = 0;
1140 adapter->vfinfo[vf].pf_qos = 0;
1141 }
1142out:
1143 return err;
1144}
1145
1146static int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1147{
1148 switch (adapter->link_speed) {
1149 case IXGBE_LINK_SPEED_100_FULL:
1150 return 100;
1151 case IXGBE_LINK_SPEED_1GB_FULL:
1152 return 1000;
1153 case IXGBE_LINK_SPEED_10GB_FULL:
1154 return 10000;
1155 default:
1156 return 0;
1157 }
1158}
1159
1160static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1161{
1162 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1163 struct ixgbe_hw *hw = &adapter->hw;
1164 u32 bcnrc_val = 0;
1165 u16 queue, queues_per_pool;
1166 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1167
1168 if (tx_rate) {
1169 /* start with base link speed value */
1170 bcnrc_val = adapter->vf_rate_link_speed;
1171
1172 /* Calculate the rate factor values to set */
1173 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1174 bcnrc_val /= tx_rate;
1175
1176 /* clear everything but the rate factor */
1177 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1178 IXGBE_RTTBCNRC_RF_DEC_MASK;
1179
1180 /* enable the rate scheduler */
1181 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1182 }
1183
1184 /*
1185 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1186 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1187 * and 0x004 otherwise.
1188 */
1189 switch (hw->mac.type) {
1190 case ixgbe_mac_82599EB:
1191 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1192 break;
1193 case ixgbe_mac_X540:
1194 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1195 break;
1196 default:
1197 break;
1198 }
1199
1200 /* determine how many queues per pool based on VMDq mask */
1201 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1202
1203 /* write value for all Tx queues belonging to VF */
1204 for (queue = 0; queue < queues_per_pool; queue++) {
1205 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1206
1207 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1208 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1209 }
1210}
1211
1212void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1213{
1214 int i;
1215
1216 /* VF Tx rate limit was not set */
1217 if (!adapter->vf_rate_link_speed)
1218 return;
1219
1220 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1221 adapter->vf_rate_link_speed = 0;
1222 dev_info(&adapter->pdev->dev,
1223 "Link speed has been changed. VF Transmit rate is disabled\n");
1224 }
1225
1226 for (i = 0; i < adapter->num_vfs; i++) {
1227 if (!adapter->vf_rate_link_speed)
1228 adapter->vfinfo[i].tx_rate = 0;
1229
1230 ixgbe_set_vf_rate_limit(adapter, i);
1231 }
1232}
1233
1234int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
1235{
1236 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1237 int link_speed;
1238
1239 /* verify VF is active */
1240 if (vf >= adapter->num_vfs)
1241 return -EINVAL;
1242
1243 /* verify link is up */
1244 if (!adapter->link_up)
1245 return -EINVAL;
1246
1247 /* verify we are linked at 10Gbps */
1248 link_speed = ixgbe_link_mbps(adapter);
1249 if (link_speed != 10000)
1250 return -EINVAL;
1251
1252 /* rate limit cannot be less than 10Mbs or greater than link speed */
1253 if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed)))
1254 return -EINVAL;
1255
1256 /* store values */
1257 adapter->vf_rate_link_speed = link_speed;
1258 adapter->vfinfo[vf].tx_rate = tx_rate;
1259
1260 /* update hardware configuration */
1261 ixgbe_set_vf_rate_limit(adapter, vf);
1262
1263 return 0;
1264}
1265
1266int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1267{
1268 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1269 int vf_target_reg = vf >> 3;
1270 int vf_target_shift = vf % 8;
1271 struct ixgbe_hw *hw = &adapter->hw;
1272 u32 regval;
1273
1274 adapter->vfinfo[vf].spoofchk_enabled = setting;
1275
1276 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1277 regval &= ~(1 << vf_target_shift);
1278 regval |= (setting << vf_target_shift);
1279 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1280
1281 if (adapter->vfinfo[vf].vlan_count) {
1282 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT;
1283 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1284 regval &= ~(1 << vf_target_shift);
1285 regval |= (setting << vf_target_shift);
1286 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1287 }
1288
1289 return 0;
1290}
1291
1292int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1293 int vf, struct ifla_vf_info *ivi)
1294{
1295 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1296 if (vf >= adapter->num_vfs)
1297 return -EINVAL;
1298 ivi->vf = vf;
1299 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1300 ivi->tx_rate = adapter->vfinfo[vf].tx_rate;
1301 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1302 ivi->qos = adapter->vfinfo[vf].pf_qos;
1303 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1304 return 0;
1305}