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17367270 GR |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
a52055e0 | 4 | Copyright(c) 1999 - 2011 Intel Corporation. |
17367270 GR |
5 | |
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
25 | ||
26 | *******************************************************************************/ | |
27 | ||
17367270 GR |
28 | #include <linux/types.h> |
29 | #include <linux/module.h> | |
30 | #include <linux/pci.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/vmalloc.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/ip.h> | |
36 | #include <linux/tcp.h> | |
37 | #include <linux/ipv6.h> | |
38 | #ifdef NETIF_F_HW_VLAN_TX | |
39 | #include <linux/if_vlan.h> | |
40 | #endif | |
41 | ||
42 | #include "ixgbe.h" | |
43 | ||
44 | #include "ixgbe_sriov.h" | |
45 | ||
5d5b7c39 ET |
46 | static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, |
47 | int entries, u16 *hash_list, u32 vf) | |
17367270 GR |
48 | { |
49 | struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; | |
8a07a22d | 50 | struct ixgbe_hw *hw = &adapter->hw; |
17367270 | 51 | int i; |
8a07a22d GR |
52 | u32 vector_bit; |
53 | u32 vector_reg; | |
54 | u32 mta_reg; | |
17367270 GR |
55 | |
56 | /* only so many hash values supported */ | |
57 | entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); | |
58 | ||
59 | /* | |
60 | * salt away the number of multi cast addresses assigned | |
61 | * to this VF for later use to restore when the PF multi cast | |
62 | * list changes | |
63 | */ | |
64 | vfinfo->num_vf_mc_hashes = entries; | |
65 | ||
66 | /* | |
67 | * VFs are limited to using the MTA hash table for their multicast | |
68 | * addresses | |
69 | */ | |
70 | for (i = 0; i < entries; i++) { | |
e81a1ba8 | 71 | vfinfo->vf_mc_hashes[i] = hash_list[i]; |
17367270 GR |
72 | } |
73 | ||
8a07a22d GR |
74 | for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { |
75 | vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; | |
76 | vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; | |
77 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
78 | mta_reg |= (1 << vector_bit); | |
79 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
80 | } | |
17367270 GR |
81 | |
82 | return 0; | |
83 | } | |
84 | ||
a1cbb15c GR |
85 | static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) |
86 | { | |
87 | struct ixgbe_hw *hw = &adapter->hw; | |
88 | struct list_head *pos; | |
89 | struct vf_macvlans *entry; | |
90 | ||
91 | list_for_each(pos, &adapter->vf_mvs.l) { | |
92 | entry = list_entry(pos, struct vf_macvlans, l); | |
93 | if (entry->free == false) | |
94 | hw->mac.ops.set_rar(hw, entry->rar_entry, | |
95 | entry->vf_macvlan, | |
96 | entry->vf, IXGBE_RAH_AV); | |
97 | } | |
98 | } | |
99 | ||
17367270 GR |
100 | void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) |
101 | { | |
102 | struct ixgbe_hw *hw = &adapter->hw; | |
103 | struct vf_data_storage *vfinfo; | |
104 | int i, j; | |
105 | u32 vector_bit; | |
106 | u32 vector_reg; | |
107 | u32 mta_reg; | |
108 | ||
109 | for (i = 0; i < adapter->num_vfs; i++) { | |
110 | vfinfo = &adapter->vfinfo[i]; | |
111 | for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { | |
112 | hw->addr_ctrl.mta_in_use++; | |
113 | vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; | |
114 | vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; | |
115 | mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); | |
116 | mta_reg |= (1 << vector_bit); | |
117 | IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); | |
118 | } | |
119 | } | |
a1cbb15c GR |
120 | |
121 | /* Restore any VF macvlans */ | |
122 | ixgbe_restore_vf_macvlans(adapter); | |
17367270 GR |
123 | } |
124 | ||
5d5b7c39 ET |
125 | static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, |
126 | u32 vf) | |
17367270 | 127 | { |
17367270 GR |
128 | return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); |
129 | } | |
130 | ||
b32c8dcc | 131 | static void ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf) |
e9f98072 GR |
132 | { |
133 | struct ixgbe_hw *hw = &adapter->hw; | |
134 | int new_mtu = msgbuf[1]; | |
135 | u32 max_frs; | |
136 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
137 | ||
138 | /* Only X540 supports jumbo frames in IOV mode */ | |
139 | if (adapter->hw.mac.type != ixgbe_mac_X540) | |
140 | return; | |
141 | ||
142 | /* MTU < 68 is an error and causes problems on some kernels */ | |
143 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) { | |
144 | e_err(drv, "VF mtu %d out of range\n", new_mtu); | |
145 | return; | |
146 | } | |
147 | ||
148 | max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) & | |
149 | IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT; | |
150 | if (max_frs < new_mtu) { | |
151 | max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT; | |
152 | IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); | |
153 | } | |
154 | ||
155 | e_info(hw, "VF requests change max MTU to %d\n", new_mtu); | |
156 | } | |
157 | ||
5d5b7c39 | 158 | static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) |
17367270 GR |
159 | { |
160 | u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); | |
f0412776 | 161 | vmolr |= (IXGBE_VMOLR_ROMPE | |
17367270 | 162 | IXGBE_VMOLR_BAM); |
f0412776 GR |
163 | if (aupe) |
164 | vmolr |= IXGBE_VMOLR_AUPE; | |
165 | else | |
166 | vmolr &= ~IXGBE_VMOLR_AUPE; | |
17367270 GR |
167 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); |
168 | } | |
169 | ||
7f01648a GR |
170 | static void ixgbe_set_vmvir(struct ixgbe_adapter *adapter, u32 vid, u32 vf) |
171 | { | |
172 | struct ixgbe_hw *hw = &adapter->hw; | |
173 | ||
174 | if (vid) | |
175 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), | |
176 | (vid | IXGBE_VMVIR_VLANA_DEFAULT)); | |
177 | else | |
178 | IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); | |
179 | } | |
180 | ||
5d5b7c39 | 181 | static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
182 | { |
183 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 184 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
17367270 GR |
185 | |
186 | /* reset offloads to defaults */ | |
7f01648a GR |
187 | if (adapter->vfinfo[vf].pf_vlan) { |
188 | ixgbe_set_vf_vlan(adapter, true, | |
189 | adapter->vfinfo[vf].pf_vlan, vf); | |
190 | ixgbe_set_vmvir(adapter, | |
191 | (adapter->vfinfo[vf].pf_vlan | | |
192 | (adapter->vfinfo[vf].pf_qos << | |
193 | VLAN_PRIO_SHIFT)), vf); | |
194 | ixgbe_set_vmolr(hw, vf, false); | |
195 | } else { | |
196 | ixgbe_set_vmvir(adapter, 0, vf); | |
197 | ixgbe_set_vmolr(hw, vf, true); | |
198 | } | |
17367270 GR |
199 | |
200 | /* reset multicast table array for vf */ | |
201 | adapter->vfinfo[vf].num_vf_mc_hashes = 0; | |
202 | ||
203 | /* Flush and reset the mta with the new values */ | |
204 | ixgbe_set_rx_mode(adapter->netdev); | |
205 | ||
2850062a | 206 | hw->mac.ops.clear_rar(hw, rar_entry); |
17367270 GR |
207 | } |
208 | ||
5d5b7c39 ET |
209 | static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, |
210 | int vf, unsigned char *mac_addr) | |
17367270 GR |
211 | { |
212 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 213 | int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
17367270 GR |
214 | |
215 | memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6); | |
2850062a | 216 | hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); |
17367270 GR |
217 | |
218 | return 0; | |
219 | } | |
220 | ||
a1cbb15c GR |
221 | static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, |
222 | int vf, int index, unsigned char *mac_addr) | |
223 | { | |
224 | struct ixgbe_hw *hw = &adapter->hw; | |
225 | struct list_head *pos; | |
226 | struct vf_macvlans *entry; | |
227 | ||
228 | if (index <= 1) { | |
229 | list_for_each(pos, &adapter->vf_mvs.l) { | |
230 | entry = list_entry(pos, struct vf_macvlans, l); | |
231 | if (entry->vf == vf) { | |
232 | entry->vf = -1; | |
233 | entry->free = true; | |
234 | entry->is_macvlan = false; | |
235 | hw->mac.ops.clear_rar(hw, entry->rar_entry); | |
236 | } | |
237 | } | |
238 | } | |
239 | ||
240 | /* | |
241 | * If index was zero then we were asked to clear the uc list | |
242 | * for the VF. We're done. | |
243 | */ | |
244 | if (!index) | |
245 | return 0; | |
246 | ||
247 | entry = NULL; | |
248 | ||
249 | list_for_each(pos, &adapter->vf_mvs.l) { | |
250 | entry = list_entry(pos, struct vf_macvlans, l); | |
251 | if (entry->free) | |
252 | break; | |
253 | } | |
254 | ||
255 | /* | |
256 | * If we traversed the entire list and didn't find a free entry | |
257 | * then we're out of space on the RAR table. Also entry may | |
258 | * be NULL because the original memory allocation for the list | |
259 | * failed, which is not fatal but does mean we can't support | |
260 | * VF requests for MACVLAN because we couldn't allocate | |
261 | * memory for the list management required. | |
262 | */ | |
263 | if (!entry || !entry->free) | |
264 | return -ENOSPC; | |
265 | ||
266 | entry->free = false; | |
267 | entry->is_macvlan = true; | |
268 | entry->vf = vf; | |
269 | memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); | |
270 | ||
271 | hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
17367270 GR |
276 | int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) |
277 | { | |
278 | unsigned char vf_mac_addr[6]; | |
c60fbb00 | 279 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
17367270 GR |
280 | unsigned int vfn = (event_mask & 0x3f); |
281 | ||
282 | bool enable = ((event_mask & 0x10000000U) != 0); | |
283 | ||
284 | if (enable) { | |
285 | random_ether_addr(vf_mac_addr); | |
396e799c ET |
286 | e_info(probe, "IOV: VF %d is enabled MAC %pM\n", |
287 | vfn, vf_mac_addr); | |
17367270 GR |
288 | /* |
289 | * Store away the VF "permananet" MAC address, it will ask | |
290 | * for it later. | |
291 | */ | |
292 | memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); | |
293 | } | |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
5d5b7c39 | 298 | static inline void ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) |
17367270 GR |
299 | { |
300 | struct ixgbe_hw *hw = &adapter->hw; | |
301 | u32 reg; | |
302 | u32 reg_offset, vf_shift; | |
303 | ||
304 | vf_shift = vf % 32; | |
305 | reg_offset = vf / 32; | |
306 | ||
307 | /* enable transmit and receive for vf */ | |
308 | reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); | |
309 | reg |= (reg | (1 << vf_shift)); | |
310 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); | |
311 | ||
312 | reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); | |
313 | reg |= (reg | (1 << vf_shift)); | |
314 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); | |
315 | ||
a985b6c3 GR |
316 | /* Enable counting of spoofed packets in the SSVPC register */ |
317 | reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); | |
318 | reg |= (1 << vf_shift); | |
319 | IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); | |
320 | ||
17367270 GR |
321 | ixgbe_vf_reset_event(adapter, vf); |
322 | } | |
323 | ||
324 | static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) | |
325 | { | |
326 | u32 mbx_size = IXGBE_VFMAILBOX_SIZE; | |
c050999e | 327 | u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; |
17367270 GR |
328 | struct ixgbe_hw *hw = &adapter->hw; |
329 | s32 retval; | |
330 | int entries; | |
331 | u16 *hash_list; | |
a1cbb15c | 332 | int add, vid, index; |
d3306c29 | 333 | u8 *new_mac; |
17367270 GR |
334 | |
335 | retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); | |
336 | ||
337 | if (retval) | |
849c4542 | 338 | pr_err("Error receiving message from VF\n"); |
17367270 GR |
339 | |
340 | /* this is a message we already processed, do nothing */ | |
341 | if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) | |
342 | return retval; | |
343 | ||
344 | /* | |
345 | * until the vf completes a virtual function reset it should not be | |
346 | * allowed to start any configuration. | |
347 | */ | |
348 | ||
349 | if (msgbuf[0] == IXGBE_VF_RESET) { | |
350 | unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; | |
d3306c29 | 351 | new_mac = (u8 *)(&msgbuf[1]); |
396e799c | 352 | e_info(probe, "VF Reset msg received from vf %d\n", vf); |
17367270 GR |
353 | adapter->vfinfo[vf].clear_to_send = false; |
354 | ixgbe_vf_reset_msg(adapter, vf); | |
355 | adapter->vfinfo[vf].clear_to_send = true; | |
356 | ||
d3306c29 GR |
357 | if (is_valid_ether_addr(new_mac) && |
358 | !adapter->vfinfo[vf].pf_set_mac) | |
359 | ixgbe_set_vf_mac(adapter, vf, vf_mac); | |
360 | else | |
361 | ixgbe_set_vf_mac(adapter, | |
362 | vf, adapter->vfinfo[vf].vf_mac_addresses); | |
363 | ||
17367270 GR |
364 | /* reply to reset with ack and vf mac address */ |
365 | msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK; | |
d3306c29 | 366 | memcpy(new_mac, vf_mac, IXGBE_ETH_LENGTH_OF_ADDRESS); |
17367270 GR |
367 | /* |
368 | * Piggyback the multicast filter type so VF can compute the | |
369 | * correct vectors | |
370 | */ | |
371 | msgbuf[3] = hw->mac.mc_filter_type; | |
372 | ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); | |
373 | ||
374 | return retval; | |
375 | } | |
376 | ||
377 | if (!adapter->vfinfo[vf].clear_to_send) { | |
378 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
379 | ixgbe_write_mbx(hw, msgbuf, 1, vf); | |
380 | return retval; | |
381 | } | |
382 | ||
383 | switch ((msgbuf[0] & 0xFFFF)) { | |
384 | case IXGBE_VF_SET_MAC_ADDR: | |
d3306c29 GR |
385 | new_mac = ((u8 *)(&msgbuf[1])); |
386 | if (is_valid_ether_addr(new_mac) && | |
387 | !adapter->vfinfo[vf].pf_set_mac) { | |
388 | ixgbe_set_vf_mac(adapter, vf, new_mac); | |
389 | } else if (memcmp(adapter->vfinfo[vf].vf_mac_addresses, | |
390 | new_mac, ETH_ALEN)) { | |
391 | e_warn(drv, "VF %d attempted to override " | |
392 | "administratively set MAC address\nReload " | |
393 | "the VF driver to resume operations\n", vf); | |
394 | retval = -1; | |
17367270 GR |
395 | } |
396 | break; | |
397 | case IXGBE_VF_SET_MULTICAST: | |
398 | entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) | |
399 | >> IXGBE_VT_MSGINFO_SHIFT; | |
400 | hash_list = (u16 *)&msgbuf[1]; | |
401 | retval = ixgbe_set_vf_multicasts(adapter, entries, | |
402 | hash_list, vf); | |
403 | break; | |
404 | case IXGBE_VF_SET_LPE: | |
e9f98072 | 405 | ixgbe_set_vf_lpe(adapter, msgbuf); |
17367270 GR |
406 | break; |
407 | case IXGBE_VF_SET_VLAN: | |
408 | add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) | |
409 | >> IXGBE_VT_MSGINFO_SHIFT; | |
410 | vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); | |
d3306c29 GR |
411 | if (adapter->vfinfo[vf].pf_vlan) { |
412 | e_warn(drv, "VF %d attempted to override " | |
413 | "administratively set VLAN configuration\n" | |
414 | "Reload the VF driver to resume operations\n", | |
415 | vf); | |
416 | retval = -1; | |
417 | } else { | |
418 | retval = ixgbe_set_vf_vlan(adapter, add, vid, vf); | |
419 | } | |
17367270 | 420 | break; |
a1cbb15c GR |
421 | case IXGBE_VF_SET_MACVLAN: |
422 | index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> | |
423 | IXGBE_VT_MSGINFO_SHIFT; | |
424 | /* | |
425 | * If the VF is allowed to set MAC filters then turn off | |
426 | * anti-spoofing to avoid false positives. An index | |
427 | * greater than 0 will indicate the VF is setting a | |
428 | * macvlan MAC filter. | |
429 | */ | |
430 | if (index > 0 && adapter->antispoofing_enabled) { | |
431 | hw->mac.ops.set_mac_anti_spoofing(hw, false, | |
432 | adapter->num_vfs); | |
433 | hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); | |
434 | adapter->antispoofing_enabled = false; | |
435 | } | |
436 | retval = ixgbe_set_vf_macvlan(adapter, vf, index, | |
437 | (unsigned char *)(&msgbuf[1])); | |
438 | break; | |
17367270 | 439 | default: |
396e799c | 440 | e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); |
17367270 GR |
441 | retval = IXGBE_ERR_MBX; |
442 | break; | |
443 | } | |
444 | ||
445 | /* notify the VF of the results of what it sent us */ | |
446 | if (retval) | |
447 | msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; | |
448 | else | |
449 | msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; | |
450 | ||
451 | msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; | |
452 | ||
453 | ixgbe_write_mbx(hw, msgbuf, 1, vf); | |
454 | ||
455 | return retval; | |
456 | } | |
457 | ||
458 | static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) | |
459 | { | |
460 | struct ixgbe_hw *hw = &adapter->hw; | |
461 | u32 msg = IXGBE_VT_MSGTYPE_NACK; | |
462 | ||
463 | /* if device isn't clear to send it shouldn't be reading either */ | |
464 | if (!adapter->vfinfo[vf].clear_to_send) | |
465 | ixgbe_write_mbx(hw, &msg, 1, vf); | |
466 | } | |
467 | ||
468 | void ixgbe_msg_task(struct ixgbe_adapter *adapter) | |
469 | { | |
470 | struct ixgbe_hw *hw = &adapter->hw; | |
471 | u32 vf; | |
472 | ||
473 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
474 | /* process any reset requests */ | |
475 | if (!ixgbe_check_for_rst(hw, vf)) | |
476 | ixgbe_vf_reset_event(adapter, vf); | |
477 | ||
478 | /* process any messages pending */ | |
479 | if (!ixgbe_check_for_msg(hw, vf)) | |
480 | ixgbe_rcv_msg_from_vf(adapter, vf); | |
481 | ||
482 | /* process any acks */ | |
483 | if (!ixgbe_check_for_ack(hw, vf)) | |
484 | ixgbe_rcv_ack_from_vf(adapter, vf); | |
485 | } | |
486 | } | |
487 | ||
767081ad GR |
488 | void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) |
489 | { | |
490 | struct ixgbe_hw *hw = &adapter->hw; | |
491 | ||
492 | /* disable transmit and receive for all vfs */ | |
493 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); | |
494 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); | |
495 | ||
496 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); | |
497 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); | |
498 | } | |
499 | ||
500 | void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) | |
501 | { | |
502 | struct ixgbe_hw *hw = &adapter->hw; | |
503 | u32 ping; | |
504 | int i; | |
505 | ||
506 | for (i = 0 ; i < adapter->num_vfs; i++) { | |
507 | ping = IXGBE_PF_CONTROL_MSG; | |
508 | if (adapter->vfinfo[i].clear_to_send) | |
509 | ping |= IXGBE_VT_MSGTYPE_CTS; | |
510 | ixgbe_write_mbx(hw, &ping, 1, i); | |
511 | } | |
512 | } | |
513 | ||
7f01648a GR |
514 | int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
515 | { | |
516 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
517 | if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) | |
518 | return -EINVAL; | |
519 | adapter->vfinfo[vf].pf_set_mac = true; | |
520 | dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); | |
521 | dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" | |
522 | " change effective."); | |
523 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
524 | dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," | |
525 | " but the PF device is not up.\n"); | |
526 | dev_warn(&adapter->pdev->dev, "Bring the PF device up before" | |
527 | " attempting to use the VF device.\n"); | |
528 | } | |
529 | return ixgbe_set_vf_mac(adapter, vf, mac); | |
530 | } | |
531 | ||
532 | int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) | |
533 | { | |
534 | int err = 0; | |
535 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
a985b6c3 | 536 | struct ixgbe_hw *hw = &adapter->hw; |
7f01648a GR |
537 | |
538 | if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) | |
539 | return -EINVAL; | |
540 | if (vlan || qos) { | |
541 | err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); | |
542 | if (err) | |
543 | goto out; | |
544 | ixgbe_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf); | |
a985b6c3 | 545 | ixgbe_set_vmolr(hw, vf, false); |
a1cbb15c GR |
546 | if (adapter->antispoofing_enabled) |
547 | hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); | |
7f01648a GR |
548 | adapter->vfinfo[vf].pf_vlan = vlan; |
549 | adapter->vfinfo[vf].pf_qos = qos; | |
550 | dev_info(&adapter->pdev->dev, | |
551 | "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); | |
552 | if (test_bit(__IXGBE_DOWN, &adapter->state)) { | |
553 | dev_warn(&adapter->pdev->dev, | |
554 | "The VF VLAN has been set," | |
555 | " but the PF device is not up.\n"); | |
556 | dev_warn(&adapter->pdev->dev, | |
557 | "Bring the PF device up before" | |
558 | " attempting to use the VF device.\n"); | |
559 | } | |
560 | } else { | |
561 | err = ixgbe_set_vf_vlan(adapter, false, | |
562 | adapter->vfinfo[vf].pf_vlan, vf); | |
563 | ixgbe_set_vmvir(adapter, vlan, vf); | |
a985b6c3 GR |
564 | ixgbe_set_vmolr(hw, vf, true); |
565 | hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); | |
7f01648a GR |
566 | adapter->vfinfo[vf].pf_vlan = 0; |
567 | adapter->vfinfo[vf].pf_qos = 0; | |
568 | } | |
569 | out: | |
570 | return err; | |
571 | } | |
572 | ||
ff4ab206 LL |
573 | static int ixgbe_link_mbps(int internal_link_speed) |
574 | { | |
575 | switch (internal_link_speed) { | |
576 | case IXGBE_LINK_SPEED_100_FULL: | |
577 | return 100; | |
578 | case IXGBE_LINK_SPEED_1GB_FULL: | |
579 | return 1000; | |
580 | case IXGBE_LINK_SPEED_10GB_FULL: | |
581 | return 10000; | |
582 | default: | |
583 | return 0; | |
584 | } | |
585 | } | |
586 | ||
587 | static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate, | |
588 | int link_speed) | |
589 | { | |
590 | int rf_dec, rf_int; | |
591 | u32 bcnrc_val; | |
592 | ||
593 | if (tx_rate != 0) { | |
594 | /* Calculate the rate factor values to set */ | |
595 | rf_int = link_speed / tx_rate; | |
596 | rf_dec = (link_speed - (rf_int * tx_rate)); | |
597 | rf_dec = (rf_dec * (1<<IXGBE_RTTBCNRC_RF_INT_SHIFT)) / tx_rate; | |
598 | ||
599 | bcnrc_val = IXGBE_RTTBCNRC_RS_ENA; | |
600 | bcnrc_val |= ((rf_int<<IXGBE_RTTBCNRC_RF_INT_SHIFT) & | |
601 | IXGBE_RTTBCNRC_RF_INT_MASK); | |
602 | bcnrc_val |= (rf_dec & IXGBE_RTTBCNRC_RF_DEC_MASK); | |
603 | } else { | |
604 | bcnrc_val = 0; | |
605 | } | |
606 | ||
607 | IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, 2*vf); /* vf Y uses queue 2*Y */ | |
7555e83d LL |
608 | /* |
609 | * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM | |
610 | * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported | |
611 | * and 0x004 otherwise. | |
612 | */ | |
613 | switch (hw->mac.type) { | |
614 | case ixgbe_mac_82599EB: | |
615 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); | |
616 | break; | |
617 | case ixgbe_mac_X540: | |
618 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); | |
619 | break; | |
620 | default: | |
621 | break; | |
622 | } | |
623 | ||
ff4ab206 LL |
624 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); |
625 | } | |
626 | ||
627 | void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) | |
628 | { | |
629 | int actual_link_speed, i; | |
630 | bool reset_rate = false; | |
631 | ||
632 | /* VF Tx rate limit was not set */ | |
633 | if (adapter->vf_rate_link_speed == 0) | |
634 | return; | |
635 | ||
636 | actual_link_speed = ixgbe_link_mbps(adapter->link_speed); | |
637 | if (actual_link_speed != adapter->vf_rate_link_speed) { | |
638 | reset_rate = true; | |
639 | adapter->vf_rate_link_speed = 0; | |
640 | dev_info(&adapter->pdev->dev, | |
641 | "Link speed has been changed. VF Transmit rate " | |
642 | "is disabled\n"); | |
643 | } | |
644 | ||
645 | for (i = 0; i < adapter->num_vfs; i++) { | |
646 | if (reset_rate) | |
647 | adapter->vfinfo[i].tx_rate = 0; | |
648 | ||
649 | ixgbe_set_vf_rate_limit(&adapter->hw, i, | |
650 | adapter->vfinfo[i].tx_rate, | |
651 | actual_link_speed); | |
652 | } | |
653 | } | |
654 | ||
7f01648a GR |
655 | int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) |
656 | { | |
ff4ab206 LL |
657 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
658 | struct ixgbe_hw *hw = &adapter->hw; | |
659 | int actual_link_speed; | |
660 | ||
661 | actual_link_speed = ixgbe_link_mbps(adapter->link_speed); | |
662 | if ((vf >= adapter->num_vfs) || (!adapter->link_up) || | |
663 | (tx_rate > actual_link_speed) || (actual_link_speed != 10000) || | |
664 | ((tx_rate != 0) && (tx_rate <= 10))) | |
665 | /* rate limit cannot be set to 10Mb or less in 10Gb adapters */ | |
666 | return -EINVAL; | |
667 | ||
668 | adapter->vf_rate_link_speed = actual_link_speed; | |
669 | adapter->vfinfo[vf].tx_rate = (u16)tx_rate; | |
670 | ixgbe_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed); | |
671 | ||
672 | return 0; | |
7f01648a GR |
673 | } |
674 | ||
675 | int ixgbe_ndo_get_vf_config(struct net_device *netdev, | |
676 | int vf, struct ifla_vf_info *ivi) | |
677 | { | |
678 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
679 | if (vf >= adapter->num_vfs) | |
680 | return -EINVAL; | |
681 | ivi->vf = vf; | |
682 | memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); | |
ff4ab206 | 683 | ivi->tx_rate = adapter->vfinfo[vf].tx_rate; |
7f01648a GR |
684 | ivi->vlan = adapter->vfinfo[vf].pf_vlan; |
685 | ivi->qos = adapter->vfinfo[vf].pf_qos; | |
686 | return 0; | |
687 | } |