?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ixgbe: Fix compile for kernel without CONFIG_PCI_IOV defined
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / ethernet / intel / ixgbe / ixgbe_sriov.c
blob00fcd39ad666b6c289379e401800438347952dd7
1 /*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2011 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 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25
26 *******************************************************************************/
27
28 #include <linux/types.h>
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/netdevice.h>
32 #include <linux/vmalloc.h>
33 #include <linux/string.h>
34 #include <linux/in.h>
35 #include <linux/ip.h>
36 #include <linux/tcp.h>
37 #include <linux/ipv6.h>
38 #ifdef NETIF_F_HW_VLAN_TX
39 #include <linux/if_vlan.h>
40 #endif
41
42 #include "ixgbe.h"
43 #include "ixgbe_type.h"
44 #include "ixgbe_sriov.h"
45
46 #ifdef CONFIG_PCI_IOV
47 static int ixgbe_find_enabled_vfs(struct ixgbe_adapter *adapter)
48 {
49 struct pci_dev *pdev = adapter->pdev;
50 struct pci_dev *pvfdev;
51 u16 vf_devfn = 0;
52 int device_id;
53 int vfs_found = 0;
54
55 switch (adapter->hw.mac.type) {
56 case ixgbe_mac_82599EB:
57 device_id = IXGBE_DEV_ID_82599_VF;
58 break;
59 case ixgbe_mac_X540:
60 device_id = IXGBE_DEV_ID_X540_VF;
61 break;
62 default:
63 device_id = 0;
64 break;
65 }
66
67 vf_devfn = pdev->devfn + 0x80;
68 pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, device_id, NULL);
69 while (pvfdev) {
70 if (pvfdev->devfn == vf_devfn)
71 vfs_found++;
72 vf_devfn += 2;
73 pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID,
74 device_id, pvfdev);
75 }
76
77 return vfs_found;
78 }
79
80 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
81 const struct ixgbe_info *ii)
82 {
83 struct ixgbe_hw *hw = &adapter->hw;
84 int err = 0;
85 int num_vf_macvlans, i;
86 struct vf_macvlans *mv_list;
87 int pre_existing_vfs = 0;
88
89 pre_existing_vfs = ixgbe_find_enabled_vfs(adapter);
90 if (!pre_existing_vfs && !adapter->num_vfs)
91 return;
92
93 /* If there are pre-existing VFs then we have to force
94 * use of that many because they were not deleted the last
95 * time someone removed the PF driver. That would have
96 * been because they were allocated to guest VMs and can't
97 * be removed. Go ahead and just re-enable the old amount.
98 * If the user wants to change the number of VFs they can
99 * use ethtool while making sure no VFs are allocated to
100 * guest VMs... i.e. the right way.
101 */
102 if (pre_existing_vfs) {
103 adapter->num_vfs = pre_existing_vfs;
104 dev_warn(&adapter->pdev->dev, "Virtual Functions already "
105 "enabled for this device - Please reload all "
106 "VF drivers to avoid spoofed packet errors\n");
107 } else {
108 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
109 }
110 if (err) {
111 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
112 goto err_novfs;
113 }
114 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
115
116 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs);
117
118 num_vf_macvlans = hw->mac.num_rar_entries -
119 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
120
121 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans,
122 sizeof(struct vf_macvlans),
123 GFP_KERNEL);
124 if (mv_list) {
125 /* Initialize list of VF macvlans */
126 INIT_LIST_HEAD(&adapter->vf_mvs.l);
127 for (i = 0; i < num_vf_macvlans; i++) {
128 mv_list->vf = -1;
129 mv_list->free = true;
130 mv_list->rar_entry = hw->mac.num_rar_entries -
131 (i + adapter->num_vfs + 1);
132 list_add(&mv_list->l, &adapter->vf_mvs.l);
133 mv_list++;
134 }
135 }
136
137 /* If call to enable VFs succeeded then allocate memory
138 * for per VF control structures.
139 */
140 adapter->vfinfo =
141 kcalloc(adapter->num_vfs,
142 sizeof(struct vf_data_storage), GFP_KERNEL);
143 if (adapter->vfinfo) {
144 /* Now that we're sure SR-IOV is enabled
145 * and memory allocated set up the mailbox parameters
146 */
147 ixgbe_init_mbx_params_pf(hw);
148 memcpy(&hw->mbx.ops, ii->mbx_ops,
149 sizeof(hw->mbx.ops));
150
151 /* Disable RSC when in SR-IOV mode */
152 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
153 IXGBE_FLAG2_RSC_ENABLED);
154 for (i = 0; i < adapter->num_vfs; i++)
155 adapter->vfinfo[i].spoofchk_enabled = true;
156 return;
157 }
158
159 /* Oh oh */
160 e_err(probe, "Unable to allocate memory for VF Data Storage - "
161 "SRIOV disabled\n");
162 pci_disable_sriov(adapter->pdev);
163
164 err_novfs:
165 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
166 adapter->num_vfs = 0;
167 }
168 #endif /* #ifdef CONFIG_PCI_IOV */
169
170 void ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
171 {
172 struct ixgbe_hw *hw = &adapter->hw;
173 u32 gcr;
174 u32 gpie;
175 u32 vmdctl;
176 int i;
177
178 #ifdef CONFIG_PCI_IOV
179 /* disable iov and allow time for transactions to clear */
180 pci_disable_sriov(adapter->pdev);
181 #endif
182
183 /* turn off device IOV mode */
184 gcr = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
185 gcr &= ~(IXGBE_GCR_EXT_SRIOV);
186 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr);
187 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
188 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
189 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
190
191 /* set default pool back to 0 */
192 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
193 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
194 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
195 IXGBE_WRITE_FLUSH(hw);
196
197 /* take a breather then clean up driver data */
198 msleep(100);
199
200 /* Release reference to VF devices */
201 for (i = 0; i < adapter->num_vfs; i++) {
202 if (adapter->vfinfo[i].vfdev)
203 pci_dev_put(adapter->vfinfo[i].vfdev);
204 }
205 kfree(adapter->vfinfo);
206 kfree(adapter->mv_list);
207 adapter->vfinfo = NULL;
208
209 adapter->num_vfs = 0;
210 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
211 }
212
213 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
214 int entries, u16 *hash_list, u32 vf)
215 {
216 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
217 struct ixgbe_hw *hw = &adapter->hw;
218 int i;
219 u32 vector_bit;
220 u32 vector_reg;
221 u32 mta_reg;
222
223 /* only so many hash values supported */
224 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
225
226 /*
227 * salt away the number of multi cast addresses assigned
228 * to this VF for later use to restore when the PF multi cast
229 * list changes
230 */
231 vfinfo->num_vf_mc_hashes = entries;
232
233 /*
234 * VFs are limited to using the MTA hash table for their multicast
235 * addresses
236 */
237 for (i = 0; i < entries; i++) {
238 vfinfo->vf_mc_hashes[i] = hash_list[i];
239 }
240
241 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
242 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
243 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
244 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
245 mta_reg |= (1 << vector_bit);
246 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
247 }
248
249 return 0;
250 }
251
252 static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter)
253 {
254 struct ixgbe_hw *hw = &adapter->hw;
255 struct list_head *pos;
256 struct vf_macvlans *entry;
257
258 list_for_each(pos, &adapter->vf_mvs.l) {
259 entry = list_entry(pos, struct vf_macvlans, l);
260 if (entry->free == false)
261 hw->mac.ops.set_rar(hw, entry->rar_entry,
262 entry->vf_macvlan,
263 entry->vf, IXGBE_RAH_AV);
264 }
265 }
266
267 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
268 {
269 struct ixgbe_hw *hw = &adapter->hw;
270 struct vf_data_storage *vfinfo;
271 int i, j;
272 u32 vector_bit;
273 u32 vector_reg;
274 u32 mta_reg;
275
276 for (i = 0; i < adapter->num_vfs; i++) {
277 vfinfo = &adapter->vfinfo[i];
278 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
279 hw->addr_ctrl.mta_in_use++;
280 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
281 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
282 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
283 mta_reg |= (1 << vector_bit);
284 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
285 }
286 }
287
288 /* Restore any VF macvlans */
289 ixgbe_restore_vf_macvlans(adapter);
290 }
291
292 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
293 u32 vf)
294 {
295 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
296 }
297
298 static void ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf)
299 {
300 struct ixgbe_hw *hw = &adapter->hw;
301 int new_mtu = msgbuf[1];
302 u32 max_frs;
303 int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
304
305 /* Only X540 supports jumbo frames in IOV mode */
306 if (adapter->hw.mac.type != ixgbe_mac_X540)
307 return;
308
309 /* MTU < 68 is an error and causes problems on some kernels */
310 if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) {
311 e_err(drv, "VF mtu %d out of range\n", new_mtu);
312 return;
313 }
314
315 max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) &
316 IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT;
317 if (max_frs < new_mtu) {
318 max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT;
319 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
320 }
321
322 e_info(hw, "VF requests change max MTU to %d\n", new_mtu);
323 }
324
325 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
326 {
327 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
328 vmolr |= (IXGBE_VMOLR_ROMPE |
329 IXGBE_VMOLR_BAM);
330 if (aupe)
331 vmolr |= IXGBE_VMOLR_AUPE;
332 else
333 vmolr &= ~IXGBE_VMOLR_AUPE;
334 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
335 }
336
337 static void ixgbe_set_vmvir(struct ixgbe_adapter *adapter, u32 vid, u32 vf)
338 {
339 struct ixgbe_hw *hw = &adapter->hw;
340
341 if (vid)
342 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf),
343 (vid | IXGBE_VMVIR_VLANA_DEFAULT));
344 else
345 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
346 }
347
348 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
349 {
350 struct ixgbe_hw *hw = &adapter->hw;
351 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
352
353 /* reset offloads to defaults */
354 if (adapter->vfinfo[vf].pf_vlan) {
355 ixgbe_set_vf_vlan(adapter, true,
356 adapter->vfinfo[vf].pf_vlan, vf);
357 ixgbe_set_vmvir(adapter,
358 (adapter->vfinfo[vf].pf_vlan |
359 (adapter->vfinfo[vf].pf_qos <<
360 VLAN_PRIO_SHIFT)), vf);
361 ixgbe_set_vmolr(hw, vf, false);
362 } else {
363 ixgbe_set_vmvir(adapter, 0, vf);
364 ixgbe_set_vmolr(hw, vf, true);
365 }
366
367 /* reset multicast table array for vf */
368 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
369
370 /* Flush and reset the mta with the new values */
371 ixgbe_set_rx_mode(adapter->netdev);
372
373 hw->mac.ops.clear_rar(hw, rar_entry);
374 }
375
376 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
377 int vf, unsigned char *mac_addr)
378 {
379 struct ixgbe_hw *hw = &adapter->hw;
380 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
381
382 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6);
383 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
384
385 return 0;
386 }
387
388 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
389 int vf, int index, unsigned char *mac_addr)
390 {
391 struct ixgbe_hw *hw = &adapter->hw;
392 struct list_head *pos;
393 struct vf_macvlans *entry;
394
395 if (index <= 1) {
396 list_for_each(pos, &adapter->vf_mvs.l) {
397 entry = list_entry(pos, struct vf_macvlans, l);
398 if (entry->vf == vf) {
399 entry->vf = -1;
400 entry->free = true;
401 entry->is_macvlan = false;
402 hw->mac.ops.clear_rar(hw, entry->rar_entry);
403 }
404 }
405 }
406
407 /*
408 * If index was zero then we were asked to clear the uc list
409 * for the VF. We're done.
410 */
411 if (!index)
412 return 0;
413
414 entry = NULL;
415
416 list_for_each(pos, &adapter->vf_mvs.l) {
417 entry = list_entry(pos, struct vf_macvlans, l);
418 if (entry->free)
419 break;
420 }
421
422 /*
423 * If we traversed the entire list and didn't find a free entry
424 * then we're out of space on the RAR table. Also entry may
425 * be NULL because the original memory allocation for the list
426 * failed, which is not fatal but does mean we can't support
427 * VF requests for MACVLAN because we couldn't allocate
428 * memory for the list management required.
429 */
430 if (!entry || !entry->free)
431 return -ENOSPC;
432
433 entry->free = false;
434 entry->is_macvlan = true;
435 entry->vf = vf;
436 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
437
438 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV);
439
440 return 0;
441 }
442
443 int ixgbe_check_vf_assignment(struct ixgbe_adapter *adapter)
444 {
445 #ifdef CONFIG_PCI_IOV
446 int i;
447 for (i = 0; i < adapter->num_vfs; i++) {
448 if (adapter->vfinfo[i].vfdev->dev_flags &
449 PCI_DEV_FLAGS_ASSIGNED)
450 return true;
451 }
452 #endif
453 return false;
454 }
455
456 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
457 {
458 unsigned char vf_mac_addr[6];
459 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
460 unsigned int vfn = (event_mask & 0x3f);
461 struct pci_dev *pvfdev;
462 unsigned int device_id;
463 u16 thisvf_devfn = (pdev->devfn + 0x80 + (vfn << 1)) |
464 (pdev->devfn & 1);
465
466 bool enable = ((event_mask & 0x10000000U) != 0);
467
468 if (enable) {
469 random_ether_addr(vf_mac_addr);
470 e_info(probe, "IOV: VF %d is enabled MAC %pM\n",
471 vfn, vf_mac_addr);
472 /*
473 * Store away the VF "permananet" MAC address, it will ask
474 * for it later.
475 */
476 memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6);
477
478 switch (adapter->hw.mac.type) {
479 case ixgbe_mac_82599EB:
480 device_id = IXGBE_DEV_ID_82599_VF;
481 break;
482 case ixgbe_mac_X540:
483 device_id = IXGBE_DEV_ID_X540_VF;
484 break;
485 default:
486 device_id = 0;
487 break;
488 }
489
490 pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, device_id, NULL);
491 while (pvfdev) {
492 if (pvfdev->devfn == thisvf_devfn)
493 break;
494 pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID,
495 device_id, pvfdev);
496 }
497 if (pvfdev)
498 adapter->vfinfo[vfn].vfdev = pvfdev;
499 else
500 e_err(drv, "Couldn't find pci dev ptr for VF %4.4x\n",
501 thisvf_devfn);
502 }
503
504 return 0;
505 }
506
507 static inline void ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
508 {
509 struct ixgbe_hw *hw = &adapter->hw;
510 u32 reg;
511 u32 reg_offset, vf_shift;
512
513 vf_shift = vf % 32;
514 reg_offset = vf / 32;
515
516 /* enable transmit and receive for vf */
517 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
518 reg |= (reg | (1 << vf_shift));
519 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
520
521 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
522 reg |= (reg | (1 << vf_shift));
523 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
524
525 /* Enable counting of spoofed packets in the SSVPC register */
526 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
527 reg |= (1 << vf_shift);
528 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
529
530 ixgbe_vf_reset_event(adapter, vf);
531 }
532
533 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
534 {
535 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
536 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
537 struct ixgbe_hw *hw = &adapter->hw;
538 s32 retval;
539 int entries;
540 u16 *hash_list;
541 int add, vid, index;
542 u8 *new_mac;
543
544 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
545
546 if (retval)
547 pr_err("Error receiving message from VF\n");
548
549 /* this is a message we already processed, do nothing */
550 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
551 return retval;
552
553 /*
554 * until the vf completes a virtual function reset it should not be
555 * allowed to start any configuration.
556 */
557
558 if (msgbuf[0] == IXGBE_VF_RESET) {
559 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
560 new_mac = (u8 *)(&msgbuf[1]);
561 e_info(probe, "VF Reset msg received from vf %d\n", vf);
562 adapter->vfinfo[vf].clear_to_send = false;
563 ixgbe_vf_reset_msg(adapter, vf);
564 adapter->vfinfo[vf].clear_to_send = true;
565
566 if (is_valid_ether_addr(new_mac) &&
567 !adapter->vfinfo[vf].pf_set_mac)
568 ixgbe_set_vf_mac(adapter, vf, vf_mac);
569 else
570 ixgbe_set_vf_mac(adapter,
571 vf, adapter->vfinfo[vf].vf_mac_addresses);
572
573 /* reply to reset with ack and vf mac address */
574 msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
575 memcpy(new_mac, vf_mac, IXGBE_ETH_LENGTH_OF_ADDRESS);
576 /*
577 * Piggyback the multicast filter type so VF can compute the
578 * correct vectors
579 */
580 msgbuf[3] = hw->mac.mc_filter_type;
581 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
582
583 return retval;
584 }
585
586 if (!adapter->vfinfo[vf].clear_to_send) {
587 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
588 ixgbe_write_mbx(hw, msgbuf, 1, vf);
589 return retval;
590 }
591
592 switch ((msgbuf[0] & 0xFFFF)) {
593 case IXGBE_VF_SET_MAC_ADDR:
594 new_mac = ((u8 *)(&msgbuf[1]));
595 if (is_valid_ether_addr(new_mac) &&
596 !adapter->vfinfo[vf].pf_set_mac) {
597 ixgbe_set_vf_mac(adapter, vf, new_mac);
598 } else if (memcmp(adapter->vfinfo[vf].vf_mac_addresses,
599 new_mac, ETH_ALEN)) {
600 e_warn(drv, "VF %d attempted to override "
601 "administratively set MAC address\nReload "
602 "the VF driver to resume operations\n", vf);
603 retval = -1;
604 }
605 break;
606 case IXGBE_VF_SET_MULTICAST:
607 entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
608 >> IXGBE_VT_MSGINFO_SHIFT;
609 hash_list = (u16 *)&msgbuf[1];
610 retval = ixgbe_set_vf_multicasts(adapter, entries,
611 hash_list, vf);
612 break;
613 case IXGBE_VF_SET_LPE:
614 ixgbe_set_vf_lpe(adapter, msgbuf);
615 break;
616 case IXGBE_VF_SET_VLAN:
617 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
618 >> IXGBE_VT_MSGINFO_SHIFT;
619 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
620 if (adapter->vfinfo[vf].pf_vlan) {
621 e_warn(drv, "VF %d attempted to override "
622 "administratively set VLAN configuration\n"
623 "Reload the VF driver to resume operations\n",
624 vf);
625 retval = -1;
626 } else {
627 if (add)
628 adapter->vfinfo[vf].vlan_count++;
629 else if (adapter->vfinfo[vf].vlan_count)
630 adapter->vfinfo[vf].vlan_count--;
631 retval = ixgbe_set_vf_vlan(adapter, add, vid, vf);
632 if (!retval && adapter->vfinfo[vf].spoofchk_enabled)
633 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
634 }
635 break;
636 case IXGBE_VF_SET_MACVLAN:
637 index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
638 IXGBE_VT_MSGINFO_SHIFT;
639 /*
640 * If the VF is allowed to set MAC filters then turn off
641 * anti-spoofing to avoid false positives. An index
642 * greater than 0 will indicate the VF is setting a
643 * macvlan MAC filter.
644 */
645 if (index > 0 && adapter->vfinfo[vf].spoofchk_enabled)
646 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false);
647 retval = ixgbe_set_vf_macvlan(adapter, vf, index,
648 (unsigned char *)(&msgbuf[1]));
649 break;
650 default:
651 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
652 retval = IXGBE_ERR_MBX;
653 break;
654 }
655
656 /* notify the VF of the results of what it sent us */
657 if (retval)
658 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
659 else
660 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
661
662 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
663
664 ixgbe_write_mbx(hw, msgbuf, 1, vf);
665
666 return retval;
667 }
668
669 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
670 {
671 struct ixgbe_hw *hw = &adapter->hw;
672 u32 msg = IXGBE_VT_MSGTYPE_NACK;
673
674 /* if device isn't clear to send it shouldn't be reading either */
675 if (!adapter->vfinfo[vf].clear_to_send)
676 ixgbe_write_mbx(hw, &msg, 1, vf);
677 }
678
679 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
680 {
681 struct ixgbe_hw *hw = &adapter->hw;
682 u32 vf;
683
684 for (vf = 0; vf < adapter->num_vfs; vf++) {
685 /* process any reset requests */
686 if (!ixgbe_check_for_rst(hw, vf))
687 ixgbe_vf_reset_event(adapter, vf);
688
689 /* process any messages pending */
690 if (!ixgbe_check_for_msg(hw, vf))
691 ixgbe_rcv_msg_from_vf(adapter, vf);
692
693 /* process any acks */
694 if (!ixgbe_check_for_ack(hw, vf))
695 ixgbe_rcv_ack_from_vf(adapter, vf);
696 }
697 }
698
699 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
700 {
701 struct ixgbe_hw *hw = &adapter->hw;
702
703 /* disable transmit and receive for all vfs */
704 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
705 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
706
707 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
708 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
709 }
710
711 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
712 {
713 struct ixgbe_hw *hw = &adapter->hw;
714 u32 ping;
715 int i;
716
717 for (i = 0 ; i < adapter->num_vfs; i++) {
718 ping = IXGBE_PF_CONTROL_MSG;
719 if (adapter->vfinfo[i].clear_to_send)
720 ping |= IXGBE_VT_MSGTYPE_CTS;
721 ixgbe_write_mbx(hw, &ping, 1, i);
722 }
723 }
724
725 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
726 {
727 struct ixgbe_adapter *adapter = netdev_priv(netdev);
728 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
729 return -EINVAL;
730 adapter->vfinfo[vf].pf_set_mac = true;
731 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
732 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
733 " change effective.");
734 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
735 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
736 " but the PF device is not up.\n");
737 dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
738 " attempting to use the VF device.\n");
739 }
740 return ixgbe_set_vf_mac(adapter, vf, mac);
741 }
742
743 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
744 {
745 int err = 0;
746 struct ixgbe_adapter *adapter = netdev_priv(netdev);
747 struct ixgbe_hw *hw = &adapter->hw;
748
749 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
750 return -EINVAL;
751 if (vlan || qos) {
752 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
753 if (err)
754 goto out;
755 ixgbe_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf);
756 ixgbe_set_vmolr(hw, vf, false);
757 if (adapter->vfinfo[vf].spoofchk_enabled)
758 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
759 adapter->vfinfo[vf].vlan_count++;
760 adapter->vfinfo[vf].pf_vlan = vlan;
761 adapter->vfinfo[vf].pf_qos = qos;
762 dev_info(&adapter->pdev->dev,
763 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
764 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
765 dev_warn(&adapter->pdev->dev,
766 "The VF VLAN has been set,"
767 " but the PF device is not up.\n");
768 dev_warn(&adapter->pdev->dev,
769 "Bring the PF device up before"
770 " attempting to use the VF device.\n");
771 }
772 } else {
773 err = ixgbe_set_vf_vlan(adapter, false,
774 adapter->vfinfo[vf].pf_vlan, vf);
775 ixgbe_set_vmvir(adapter, vlan, vf);
776 ixgbe_set_vmolr(hw, vf, true);
777 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
778 if (adapter->vfinfo[vf].vlan_count)
779 adapter->vfinfo[vf].vlan_count--;
780 adapter->vfinfo[vf].pf_vlan = 0;
781 adapter->vfinfo[vf].pf_qos = 0;
782 }
783 out:
784 return err;
785 }
786
787 static int ixgbe_link_mbps(int internal_link_speed)
788 {
789 switch (internal_link_speed) {
790 case IXGBE_LINK_SPEED_100_FULL:
791 return 100;
792 case IXGBE_LINK_SPEED_1GB_FULL:
793 return 1000;
794 case IXGBE_LINK_SPEED_10GB_FULL:
795 return 10000;
796 default:
797 return 0;
798 }
799 }
800
801 static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate,
802 int link_speed)
803 {
804 int rf_dec, rf_int;
805 u32 bcnrc_val;
806
807 if (tx_rate != 0) {
808 /* Calculate the rate factor values to set */
809 rf_int = link_speed / tx_rate;
810 rf_dec = (link_speed - (rf_int * tx_rate));
811 rf_dec = (rf_dec * (1<<IXGBE_RTTBCNRC_RF_INT_SHIFT)) / tx_rate;
812
813 bcnrc_val = IXGBE_RTTBCNRC_RS_ENA;
814 bcnrc_val |= ((rf_int<<IXGBE_RTTBCNRC_RF_INT_SHIFT) &
815 IXGBE_RTTBCNRC_RF_INT_MASK);
816 bcnrc_val |= (rf_dec & IXGBE_RTTBCNRC_RF_DEC_MASK);
817 } else {
818 bcnrc_val = 0;
819 }
820
821 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, 2*vf); /* vf Y uses queue 2*Y */
822 /*
823 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
824 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
825 * and 0x004 otherwise.
826 */
827 switch (hw->mac.type) {
828 case ixgbe_mac_82599EB:
829 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
830 break;
831 case ixgbe_mac_X540:
832 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
833 break;
834 default:
835 break;
836 }
837
838 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
839 }
840
841 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
842 {
843 int actual_link_speed, i;
844 bool reset_rate = false;
845
846 /* VF Tx rate limit was not set */
847 if (adapter->vf_rate_link_speed == 0)
848 return;
849
850 actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
851 if (actual_link_speed != adapter->vf_rate_link_speed) {
852 reset_rate = true;
853 adapter->vf_rate_link_speed = 0;
854 dev_info(&adapter->pdev->dev,
855 "Link speed has been changed. VF Transmit rate "
856 "is disabled\n");
857 }
858
859 for (i = 0; i < adapter->num_vfs; i++) {
860 if (reset_rate)
861 adapter->vfinfo[i].tx_rate = 0;
862
863 ixgbe_set_vf_rate_limit(&adapter->hw, i,
864 adapter->vfinfo[i].tx_rate,
865 actual_link_speed);
866 }
867 }
868
869 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
870 {
871 struct ixgbe_adapter *adapter = netdev_priv(netdev);
872 struct ixgbe_hw *hw = &adapter->hw;
873 int actual_link_speed;
874
875 actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
876 if ((vf >= adapter->num_vfs) || (!adapter->link_up) ||
877 (tx_rate > actual_link_speed) || (actual_link_speed != 10000) ||
878 ((tx_rate != 0) && (tx_rate <= 10)))
879 /* rate limit cannot be set to 10Mb or less in 10Gb adapters */
880 return -EINVAL;
881
882 adapter->vf_rate_link_speed = actual_link_speed;
883 adapter->vfinfo[vf].tx_rate = (u16)tx_rate;
884 ixgbe_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed);
885
886 return 0;
887 }
888
889 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
890 {
891 struct ixgbe_adapter *adapter = netdev_priv(netdev);
892 int vf_target_reg = vf >> 3;
893 int vf_target_shift = vf % 8;
894 struct ixgbe_hw *hw = &adapter->hw;
895 u32 regval;
896
897 adapter->vfinfo[vf].spoofchk_enabled = setting;
898
899 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
900 regval &= ~(1 << vf_target_shift);
901 regval |= (setting << vf_target_shift);
902 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
903
904 if (adapter->vfinfo[vf].vlan_count) {
905 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT;
906 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
907 regval &= ~(1 << vf_target_shift);
908 regval |= (setting << vf_target_shift);
909 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
910 }
911
912 return 0;
913 }
914
915 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
916 int vf, struct ifla_vf_info *ivi)
917 {
918 struct ixgbe_adapter *adapter = netdev_priv(netdev);
919 if (vf >= adapter->num_vfs)
920 return -EINVAL;
921 ivi->vf = vf;
922 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
923 ivi->tx_rate = adapter->vfinfo[vf].tx_rate;
924 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
925 ivi->qos = adapter->vfinfo[vf].pf_qos;
926 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
927 return 0;
928 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree