1 /* bnx2x_sriov.c: QLogic Everest network driver.
2 *
3 * Copyright 2009-2013 Broadcom Corporation
4 * Copyright 2014 QLogic Corporation
5 * All rights reserved
6 *
7 * Unless you and QLogic execute a separate written software license
8 * agreement governing use of this software, this software is licensed to you
9 * under the terms of the GNU General Public License version 2, available
10 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
11 *
12 * Notwithstanding the above, under no circumstances may you combine this
13 * software in any way with any other QLogic software provided under a
14 * license other than the GPL, without QLogic's express prior written
15 * consent.
16 *
17 * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
18 * Written by: Shmulik Ravid
19 * Ariel Elior <ariel.elior@qlogic.com>
20 *
21 */
22 #include "bnx2x.h"
23 #include "bnx2x_init.h"
24 #include "bnx2x_cmn.h"
25 #include "bnx2x_sp.h"
26 #include <linux/crc32.h>
27 #include <linux/if_vlan.h>
28
29 static int bnx2x_vf_op_prep(struct bnx2x *bp, int vfidx,
30 struct bnx2x_virtf **vf,
31 struct pf_vf_bulletin_content **bulletin,
32 bool test_queue);
33
34 /* General service functions */
storm_memset_vf_to_pf(struct bnx2x * bp,u16 abs_fid,u16 pf_id)35 static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid,
36 u16 pf_id)
37 {
38 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid),
39 pf_id);
40 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid),
41 pf_id);
42 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid),
43 pf_id);
44 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid),
45 pf_id);
46 }
47
storm_memset_func_en(struct bnx2x * bp,u16 abs_fid,u8 enable)48 static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid,
49 u8 enable)
50 {
51 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid),
52 enable);
53 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid),
54 enable);
55 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid),
56 enable);
57 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid),
58 enable);
59 }
60
bnx2x_vf_idx_by_abs_fid(struct bnx2x * bp,u16 abs_vfid)61 int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
62 {
63 int idx;
64
65 for_each_vf(bp, idx)
66 if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid)
67 break;
68 return idx;
69 }
70
71 static
bnx2x_vf_by_abs_fid(struct bnx2x * bp,u16 abs_vfid)72 struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
73 {
74 u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid);
75 return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL;
76 }
77
bnx2x_vf_igu_ack_sb(struct bnx2x * bp,struct bnx2x_virtf * vf,u8 igu_sb_id,u8 segment,u16 index,u8 op,u8 update)78 static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf,
79 u8 igu_sb_id, u8 segment, u16 index, u8 op,
80 u8 update)
81 {
82 /* acking a VF sb through the PF - use the GRC */
83 u32 ctl;
84 u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA;
85 u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL;
86 u32 func_encode = vf->abs_vfid;
87 u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id;
88 struct igu_regular cmd_data = {0};
89
90 cmd_data.sb_id_and_flags =
91 ((index << IGU_REGULAR_SB_INDEX_SHIFT) |
92 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
93 (update << IGU_REGULAR_BUPDATE_SHIFT) |
94 (op << IGU_REGULAR_ENABLE_INT_SHIFT));
95
96 ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT |
97 func_encode << IGU_CTRL_REG_FID_SHIFT |
98 IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT;
99
100 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
101 cmd_data.sb_id_and_flags, igu_addr_data);
102 REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags);
103 barrier();
104
105 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
106 ctl, igu_addr_ctl);
107 REG_WR(bp, igu_addr_ctl, ctl);
108 barrier();
109 }
110
bnx2x_validate_vf_sp_objs(struct bnx2x * bp,struct bnx2x_virtf * vf,bool print_err)111 static bool bnx2x_validate_vf_sp_objs(struct bnx2x *bp,
112 struct bnx2x_virtf *vf,
113 bool print_err)
114 {
115 if (!bnx2x_leading_vfq(vf, sp_initialized)) {
116 if (print_err)
117 BNX2X_ERR("Slowpath objects not yet initialized!\n");
118 else
119 DP(BNX2X_MSG_IOV, "Slowpath objects not yet initialized!\n");
120 return false;
121 }
122 return true;
123 }
124
125 /* VFOP operations states */
bnx2x_vfop_qctor_dump_tx(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_queue_init_params * init_params,struct bnx2x_queue_setup_params * setup_params,u16 q_idx,u16 sb_idx)126 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
127 struct bnx2x_queue_init_params *init_params,
128 struct bnx2x_queue_setup_params *setup_params,
129 u16 q_idx, u16 sb_idx)
130 {
131 DP(BNX2X_MSG_IOV,
132 "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d",
133 vf->abs_vfid,
134 q_idx,
135 sb_idx,
136 init_params->tx.sb_cq_index,
137 init_params->tx.hc_rate,
138 setup_params->flags,
139 setup_params->txq_params.traffic_type);
140 }
141
bnx2x_vfop_qctor_dump_rx(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_queue_init_params * init_params,struct bnx2x_queue_setup_params * setup_params,u16 q_idx,u16 sb_idx)142 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
143 struct bnx2x_queue_init_params *init_params,
144 struct bnx2x_queue_setup_params *setup_params,
145 u16 q_idx, u16 sb_idx)
146 {
147 struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params;
148
149 DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n"
150 "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n",
151 vf->abs_vfid,
152 q_idx,
153 sb_idx,
154 init_params->rx.sb_cq_index,
155 init_params->rx.hc_rate,
156 setup_params->gen_params.mtu,
157 rxq_params->buf_sz,
158 rxq_params->sge_buf_sz,
159 rxq_params->max_sges_pkt,
160 rxq_params->tpa_agg_sz,
161 setup_params->flags,
162 rxq_params->drop_flags,
163 rxq_params->cache_line_log);
164 }
165
bnx2x_vfop_qctor_prep(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_queue * q,struct bnx2x_vf_queue_construct_params * p,unsigned long q_type)166 void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
167 struct bnx2x_virtf *vf,
168 struct bnx2x_vf_queue *q,
169 struct bnx2x_vf_queue_construct_params *p,
170 unsigned long q_type)
171 {
172 struct bnx2x_queue_init_params *init_p = &p->qstate.params.init;
173 struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup;
174
175 /* INIT */
176
177 /* Enable host coalescing in the transition to INIT state */
178 if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags))
179 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags);
180
181 if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags))
182 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags);
183
184 /* FW SB ID */
185 init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
186 init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
187
188 /* context */
189 init_p->cxts[0] = q->cxt;
190
191 /* SETUP */
192
193 /* Setup-op general parameters */
194 setup_p->gen_params.spcl_id = vf->sp_cl_id;
195 setup_p->gen_params.stat_id = vfq_stat_id(vf, q);
196 setup_p->gen_params.fp_hsi = vf->fp_hsi;
197
198 /* Setup-op flags:
199 * collect statistics, zero statistics, local-switching, security,
200 * OV for Flex10, RSS and MCAST for leading
201 */
202 if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags))
203 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags);
204
205 /* for VFs, enable tx switching, bd coherency, and mac address
206 * anti-spoofing
207 */
208 __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags);
209 __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags);
210 if (vf->spoofchk)
211 __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
212 else
213 __clear_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
214
215 /* Setup-op rx parameters */
216 if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) {
217 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params;
218
219 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q);
220 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx);
221 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid);
222
223 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags))
224 rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES;
225 }
226
227 /* Setup-op tx parameters */
228 if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) {
229 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss;
230 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
231 }
232 }
233
bnx2x_vf_queue_create(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid,struct bnx2x_vf_queue_construct_params * qctor)234 static int bnx2x_vf_queue_create(struct bnx2x *bp,
235 struct bnx2x_virtf *vf, int qid,
236 struct bnx2x_vf_queue_construct_params *qctor)
237 {
238 struct bnx2x_queue_state_params *q_params;
239 int rc = 0;
240
241 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
242
243 /* Prepare ramrod information */
244 q_params = &qctor->qstate;
245 q_params->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
246 set_bit(RAMROD_COMP_WAIT, &q_params->ramrod_flags);
247
248 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
249 BNX2X_Q_LOGICAL_STATE_ACTIVE) {
250 DP(BNX2X_MSG_IOV, "queue was already up. Aborting gracefully\n");
251 goto out;
252 }
253
254 /* Run Queue 'construction' ramrods */
255 q_params->cmd = BNX2X_Q_CMD_INIT;
256 rc = bnx2x_queue_state_change(bp, q_params);
257 if (rc)
258 goto out;
259
260 memcpy(&q_params->params.setup, &qctor->prep_qsetup,
261 sizeof(struct bnx2x_queue_setup_params));
262 q_params->cmd = BNX2X_Q_CMD_SETUP;
263 rc = bnx2x_queue_state_change(bp, q_params);
264 if (rc)
265 goto out;
266
267 /* enable interrupts */
268 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, bnx2x_vfq(vf, qid, sb_idx)),
269 USTORM_ID, 0, IGU_INT_ENABLE, 0);
270 out:
271 return rc;
272 }
273
bnx2x_vf_queue_destroy(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid)274 static int bnx2x_vf_queue_destroy(struct bnx2x *bp, struct bnx2x_virtf *vf,
275 int qid)
276 {
277 enum bnx2x_queue_cmd cmds[] = {BNX2X_Q_CMD_HALT,
278 BNX2X_Q_CMD_TERMINATE,
279 BNX2X_Q_CMD_CFC_DEL};
280 struct bnx2x_queue_state_params q_params;
281 int rc, i;
282
283 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
284
285 /* Prepare ramrod information */
286 memset(&q_params, 0, sizeof(struct bnx2x_queue_state_params));
287 q_params.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
288 set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
289
290 if (bnx2x_get_q_logical_state(bp, q_params.q_obj) ==
291 BNX2X_Q_LOGICAL_STATE_STOPPED) {
292 DP(BNX2X_MSG_IOV, "queue was already stopped. Aborting gracefully\n");
293 goto out;
294 }
295
296 /* Run Queue 'destruction' ramrods */
297 for (i = 0; i < ARRAY_SIZE(cmds); i++) {
298 q_params.cmd = cmds[i];
299 rc = bnx2x_queue_state_change(bp, &q_params);
300 if (rc) {
301 BNX2X_ERR("Failed to run Queue command %d\n", cmds[i]);
302 return rc;
303 }
304 }
305 out:
306 /* Clean Context */
307 if (bnx2x_vfq(vf, qid, cxt)) {
308 bnx2x_vfq(vf, qid, cxt)->ustorm_ag_context.cdu_usage = 0;
309 bnx2x_vfq(vf, qid, cxt)->xstorm_ag_context.cdu_reserved = 0;
310 }
311
312 return 0;
313 }
314
315 static void
bnx2x_vf_set_igu_info(struct bnx2x * bp,u8 igu_sb_id,u8 abs_vfid)316 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
317 {
318 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
319 if (vf) {
320 /* the first igu entry belonging to VFs of this PF */
321 if (!BP_VFDB(bp)->first_vf_igu_entry)
322 BP_VFDB(bp)->first_vf_igu_entry = igu_sb_id;
323
324 /* the first igu entry belonging to this VF */
325 if (!vf_sb_count(vf))
326 vf->igu_base_id = igu_sb_id;
327
328 ++vf_sb_count(vf);
329 ++vf->sb_count;
330 }
331 BP_VFDB(bp)->vf_sbs_pool++;
332 }
333
bnx2x_vf_vlan_mac_clear(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid,bool drv_only,int type)334 static int bnx2x_vf_vlan_mac_clear(struct bnx2x *bp, struct bnx2x_virtf *vf,
335 int qid, bool drv_only, int type)
336 {
337 struct bnx2x_vlan_mac_ramrod_params ramrod;
338 int rc;
339
340 DP(BNX2X_MSG_IOV, "vf[%d] - deleting all %s\n", vf->abs_vfid,
341 (type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MACs" :
342 (type == BNX2X_VF_FILTER_MAC) ? "MACs" : "VLANs");
343
344 /* Prepare ramrod params */
345 memset(&ramrod, 0, sizeof(struct bnx2x_vlan_mac_ramrod_params));
346 if (type == BNX2X_VF_FILTER_VLAN_MAC) {
347 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
348 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_mac_obj);
349 } else if (type == BNX2X_VF_FILTER_MAC) {
350 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
351 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
352 } else {
353 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
354 }
355 ramrod.user_req.cmd = BNX2X_VLAN_MAC_DEL;
356
357 set_bit(RAMROD_EXEC, &ramrod.ramrod_flags);
358 if (drv_only)
359 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod.ramrod_flags);
360 else
361 set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags);
362
363 /* Start deleting */
364 rc = ramrod.vlan_mac_obj->delete_all(bp,
365 ramrod.vlan_mac_obj,
366 &ramrod.user_req.vlan_mac_flags,
367 &ramrod.ramrod_flags);
368 if (rc) {
369 BNX2X_ERR("Failed to delete all %s\n",
370 (type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MACs" :
371 (type == BNX2X_VF_FILTER_MAC) ? "MACs" : "VLANs");
372 return rc;
373 }
374
375 return 0;
376 }
377
bnx2x_vf_mac_vlan_config(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid,struct bnx2x_vf_mac_vlan_filter * filter,bool drv_only)378 static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp,
379 struct bnx2x_virtf *vf, int qid,
380 struct bnx2x_vf_mac_vlan_filter *filter,
381 bool drv_only)
382 {
383 struct bnx2x_vlan_mac_ramrod_params ramrod;
384 int rc;
385
386 DP(BNX2X_MSG_IOV, "vf[%d] - %s a %s filter\n",
387 vf->abs_vfid, filter->add ? "Adding" : "Deleting",
388 (filter->type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MAC" :
389 (filter->type == BNX2X_VF_FILTER_MAC) ? "MAC" : "VLAN");
390
391 /* Prepare ramrod params */
392 memset(&ramrod, 0, sizeof(struct bnx2x_vlan_mac_ramrod_params));
393 if (filter->type == BNX2X_VF_FILTER_VLAN_MAC) {
394 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_mac_obj);
395 ramrod.user_req.u.vlan.vlan = filter->vid;
396 memcpy(&ramrod.user_req.u.mac.mac, filter->mac, ETH_ALEN);
397 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
398 } else if (filter->type == BNX2X_VF_FILTER_VLAN) {
399 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
400 ramrod.user_req.u.vlan.vlan = filter->vid;
401 } else {
402 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
403 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
404 memcpy(&ramrod.user_req.u.mac.mac, filter->mac, ETH_ALEN);
405 }
406 ramrod.user_req.cmd = filter->add ? BNX2X_VLAN_MAC_ADD :
407 BNX2X_VLAN_MAC_DEL;
408
409 set_bit(RAMROD_EXEC, &ramrod.ramrod_flags);
410 if (drv_only)
411 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod.ramrod_flags);
412 else
413 set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags);
414
415 /* Add/Remove the filter */
416 rc = bnx2x_config_vlan_mac(bp, &ramrod);
417 if (rc == -EEXIST)
418 return 0;
419 if (rc) {
420 BNX2X_ERR("Failed to %s %s\n",
421 filter->add ? "add" : "delete",
422 (filter->type == BNX2X_VF_FILTER_VLAN_MAC) ?
423 "VLAN-MAC" :
424 (filter->type == BNX2X_VF_FILTER_MAC) ?
425 "MAC" : "VLAN");
426 return rc;
427 }
428
429 filter->applied = true;
430
431 return 0;
432 }
433
bnx2x_vf_mac_vlan_config_list(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mac_vlan_filters * filters,int qid,bool drv_only)434 int bnx2x_vf_mac_vlan_config_list(struct bnx2x *bp, struct bnx2x_virtf *vf,
435 struct bnx2x_vf_mac_vlan_filters *filters,
436 int qid, bool drv_only)
437 {
438 int rc = 0, i;
439
440 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
441
442 if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
443 return -EINVAL;
444
445 /* Prepare ramrod params */
446 for (i = 0; i < filters->count; i++) {
447 rc = bnx2x_vf_mac_vlan_config(bp, vf, qid,
448 &filters->filters[i], drv_only);
449 if (rc)
450 break;
451 }
452
453 /* Rollback if needed */
454 if (i != filters->count) {
455 BNX2X_ERR("Managed only %d/%d filters - rolling back\n",
456 i, filters->count);
457 while (--i >= 0) {
458 if (!filters->filters[i].applied)
459 continue;
460 filters->filters[i].add = !filters->filters[i].add;
461 bnx2x_vf_mac_vlan_config(bp, vf, qid,
462 &filters->filters[i],
463 drv_only);
464 }
465 }
466
467 /* It's our responsibility to free the filters */
468 kfree(filters);
469
470 return rc;
471 }
472
bnx2x_vf_queue_setup(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid,struct bnx2x_vf_queue_construct_params * qctor)473 int bnx2x_vf_queue_setup(struct bnx2x *bp, struct bnx2x_virtf *vf, int qid,
474 struct bnx2x_vf_queue_construct_params *qctor)
475 {
476 int rc;
477
478 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
479
480 rc = bnx2x_vf_queue_create(bp, vf, qid, qctor);
481 if (rc)
482 goto op_err;
483
484 /* Schedule the configuration of any pending vlan filters */
485 bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_HYPERVISOR_VLAN,
486 BNX2X_MSG_IOV);
487 return 0;
488 op_err:
489 BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, rc);
490 return rc;
491 }
492
bnx2x_vf_queue_flr(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid)493 static int bnx2x_vf_queue_flr(struct bnx2x *bp, struct bnx2x_virtf *vf,
494 int qid)
495 {
496 int rc;
497
498 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
499
500 /* If needed, clean the filtering data base */
501 if ((qid == LEADING_IDX) &&
502 bnx2x_validate_vf_sp_objs(bp, vf, false)) {
503 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true,
504 BNX2X_VF_FILTER_VLAN_MAC);
505 if (rc)
506 goto op_err;
507 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true,
508 BNX2X_VF_FILTER_VLAN);
509 if (rc)
510 goto op_err;
511 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true,
512 BNX2X_VF_FILTER_MAC);
513 if (rc)
514 goto op_err;
515 }
516
517 /* Terminate queue */
518 if (bnx2x_vfq(vf, qid, sp_obj).state != BNX2X_Q_STATE_RESET) {
519 struct bnx2x_queue_state_params qstate;
520
521 memset(&qstate, 0, sizeof(struct bnx2x_queue_state_params));
522 qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
523 qstate.q_obj->state = BNX2X_Q_STATE_STOPPED;
524 qstate.cmd = BNX2X_Q_CMD_TERMINATE;
525 set_bit(RAMROD_COMP_WAIT, &qstate.ramrod_flags);
526 rc = bnx2x_queue_state_change(bp, &qstate);
527 if (rc)
528 goto op_err;
529 }
530
531 return 0;
532 op_err:
533 BNX2X_ERR("vf[%d:%d] error: rc %d\n", vf->abs_vfid, qid, rc);
534 return rc;
535 }
536
bnx2x_vf_mcast(struct bnx2x * bp,struct bnx2x_virtf * vf,bnx2x_mac_addr_t * mcasts,int mc_num,bool drv_only)537 int bnx2x_vf_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf,
538 bnx2x_mac_addr_t *mcasts, int mc_num, bool drv_only)
539 {
540 struct bnx2x_mcast_list_elem *mc = NULL;
541 struct bnx2x_mcast_ramrod_params mcast;
542 int rc, i;
543
544 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
545
546 /* Prepare Multicast command */
547 memset(&mcast, 0, sizeof(struct bnx2x_mcast_ramrod_params));
548 mcast.mcast_obj = &vf->mcast_obj;
549 if (drv_only)
550 set_bit(RAMROD_DRV_CLR_ONLY, &mcast.ramrod_flags);
551 else
552 set_bit(RAMROD_COMP_WAIT, &mcast.ramrod_flags);
553 if (mc_num) {
554 mc = kcalloc(mc_num, sizeof(struct bnx2x_mcast_list_elem),
555 GFP_KERNEL);
556 if (!mc) {
557 BNX2X_ERR("Cannot Configure multicasts due to lack of memory\n");
558 return -ENOMEM;
559 }
560 }
561
562 if (mc_num) {
563 INIT_LIST_HEAD(&mcast.mcast_list);
564 for (i = 0; i < mc_num; i++) {
565 mc[i].mac = mcasts[i];
566 list_add_tail(&mc[i].link,
567 &mcast.mcast_list);
568 }
569
570 /* add new mcasts */
571 mcast.mcast_list_len = mc_num;
572 rc = bnx2x_config_mcast(bp, &mcast, BNX2X_MCAST_CMD_SET);
573 if (rc)
574 BNX2X_ERR("Failed to set multicasts\n");
575 } else {
576 /* clear existing mcasts */
577 rc = bnx2x_config_mcast(bp, &mcast, BNX2X_MCAST_CMD_DEL);
578 if (rc)
579 BNX2X_ERR("Failed to remove multicasts\n");
580 }
581
582 kfree(mc);
583
584 return rc;
585 }
586
bnx2x_vf_prep_rx_mode(struct bnx2x * bp,u8 qid,struct bnx2x_rx_mode_ramrod_params * ramrod,struct bnx2x_virtf * vf,unsigned long accept_flags)587 static void bnx2x_vf_prep_rx_mode(struct bnx2x *bp, u8 qid,
588 struct bnx2x_rx_mode_ramrod_params *ramrod,
589 struct bnx2x_virtf *vf,
590 unsigned long accept_flags)
591 {
592 struct bnx2x_vf_queue *vfq = vfq_get(vf, qid);
593
594 memset(ramrod, 0, sizeof(*ramrod));
595 ramrod->cid = vfq->cid;
596 ramrod->cl_id = vfq_cl_id(vf, vfq);
597 ramrod->rx_mode_obj = &bp->rx_mode_obj;
598 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid);
599 ramrod->rx_accept_flags = accept_flags;
600 ramrod->tx_accept_flags = accept_flags;
601 ramrod->pstate = &vf->filter_state;
602 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING;
603
604 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
605 set_bit(RAMROD_RX, &ramrod->ramrod_flags);
606 set_bit(RAMROD_TX, &ramrod->ramrod_flags);
607
608 ramrod->rdata = bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2);
609 ramrod->rdata_mapping = bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2);
610 }
611
bnx2x_vf_rxmode(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid,unsigned long accept_flags)612 int bnx2x_vf_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf,
613 int qid, unsigned long accept_flags)
614 {
615 struct bnx2x_rx_mode_ramrod_params ramrod;
616
617 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
618
619 bnx2x_vf_prep_rx_mode(bp, qid, &ramrod, vf, accept_flags);
620 set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags);
621 vfq_get(vf, qid)->accept_flags = ramrod.rx_accept_flags;
622 return bnx2x_config_rx_mode(bp, &ramrod);
623 }
624
bnx2x_vf_queue_teardown(struct bnx2x * bp,struct bnx2x_virtf * vf,int qid)625 int bnx2x_vf_queue_teardown(struct bnx2x *bp, struct bnx2x_virtf *vf, int qid)
626 {
627 int rc;
628
629 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
630
631 /* Remove all classification configuration for leading queue */
632 if (qid == LEADING_IDX) {
633 rc = bnx2x_vf_rxmode(bp, vf, qid, 0);
634 if (rc)
635 goto op_err;
636
637 /* Remove filtering if feasible */
638 if (bnx2x_validate_vf_sp_objs(bp, vf, true)) {
639 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid,
640 false,
641 BNX2X_VF_FILTER_VLAN_MAC);
642 if (rc)
643 goto op_err;
644 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid,
645 false,
646 BNX2X_VF_FILTER_VLAN);
647 if (rc)
648 goto op_err;
649 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid,
650 false,
651 BNX2X_VF_FILTER_MAC);
652 if (rc)
653 goto op_err;
654 rc = bnx2x_vf_mcast(bp, vf, NULL, 0, false);
655 if (rc)
656 goto op_err;
657 }
658 }
659
660 /* Destroy queue */
661 rc = bnx2x_vf_queue_destroy(bp, vf, qid);
662 if (rc)
663 goto op_err;
664 return rc;
665 op_err:
666 BNX2X_ERR("vf[%d:%d] error: rc %d\n",
667 vf->abs_vfid, qid, rc);
668 return rc;
669 }
670
671 /* VF enable primitives
672 * when pretend is required the caller is responsible
673 * for calling pretend prior to calling these routines
674 */
675
676 /* internal vf enable - until vf is enabled internally all transactions
677 * are blocked. This routine should always be called last with pretend.
678 */
bnx2x_vf_enable_internal(struct bnx2x * bp,u8 enable)679 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
680 {
681 REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0);
682 }
683
684 /* clears vf error in all semi blocks */
bnx2x_vf_semi_clear_err(struct bnx2x * bp,u8 abs_vfid)685 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid)
686 {
687 REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid);
688 REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid);
689 REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid);
690 REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid);
691 }
692
bnx2x_vf_pglue_clear_err(struct bnx2x * bp,u8 abs_vfid)693 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid)
694 {
695 u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5;
696 u32 was_err_reg = 0;
697
698 switch (was_err_group) {
699 case 0:
700 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR;
701 break;
702 case 1:
703 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR;
704 break;
705 case 2:
706 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR;
707 break;
708 case 3:
709 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR;
710 break;
711 }
712 REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f));
713 }
714
bnx2x_vf_igu_reset(struct bnx2x * bp,struct bnx2x_virtf * vf)715 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
716 {
717 int i;
718 u32 val;
719
720 /* Set VF masks and configuration - pretend */
721 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
722
723 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
724 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
725 REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
726 REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
727 REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
728 REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
729
730 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
731 val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN);
732 val &= ~IGU_VF_CONF_PARENT_MASK;
733 val |= (BP_ABS_FUNC(bp) >> 1) << IGU_VF_CONF_PARENT_SHIFT;
734 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
735
736 DP(BNX2X_MSG_IOV,
737 "value in IGU_REG_VF_CONFIGURATION of vf %d after write is 0x%08x\n",
738 vf->abs_vfid, val);
739
740 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
741
742 /* iterate over all queues, clear sb consumer */
743 for (i = 0; i < vf_sb_count(vf); i++) {
744 u8 igu_sb_id = vf_igu_sb(vf, i);
745
746 /* zero prod memory */
747 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0);
748
749 /* clear sb state machine */
750 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id,
751 false /* VF */);
752
753 /* disable + update */
754 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0,
755 IGU_INT_DISABLE, 1);
756 }
757 }
758
bnx2x_vf_enable_access(struct bnx2x * bp,u8 abs_vfid)759 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
760 {
761 /* set the VF-PF association in the FW */
762 storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
763 storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
764
765 /* clear vf errors*/
766 bnx2x_vf_semi_clear_err(bp, abs_vfid);
767 bnx2x_vf_pglue_clear_err(bp, abs_vfid);
768
769 /* internal vf-enable - pretend */
770 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid));
771 DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid);
772 bnx2x_vf_enable_internal(bp, true);
773 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
774 }
775
bnx2x_vf_enable_traffic(struct bnx2x * bp,struct bnx2x_virtf * vf)776 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)
777 {
778 /* Reset vf in IGU interrupts are still disabled */
779 bnx2x_vf_igu_reset(bp, vf);
780
781 /* pretend to enable the vf with the PBF */
782 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
783 REG_WR(bp, PBF_REG_DISABLE_VF, 0);
784 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
785 }
786
bnx2x_vf_is_pcie_pending(struct bnx2x * bp,u8 abs_vfid)787 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
788 {
789 struct pci_dev *dev;
790 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
791
792 if (!vf)
793 return false;
794
795 dev = pci_get_domain_bus_and_slot(vf->domain, vf->bus, vf->devfn);
796 if (dev)
797 return bnx2x_is_pcie_pending(dev);
798 return false;
799 }
800
bnx2x_vf_flr_clnup_epilog(struct bnx2x * bp,u8 abs_vfid)801 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
802 {
803 /* Verify no pending pci transactions */
804 if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
805 BNX2X_ERR("PCIE Transactions still pending\n");
806
807 return 0;
808 }
809
810 /* must be called after the number of PF queues and the number of VFs are
811 * both known
812 */
813 static void
bnx2x_iov_static_resc(struct bnx2x * bp,struct bnx2x_virtf * vf)814 bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
815 {
816 struct vf_pf_resc_request *resc = &vf->alloc_resc;
817
818 /* will be set only during VF-ACQUIRE */
819 resc->num_rxqs = 0;
820 resc->num_txqs = 0;
821
822 resc->num_mac_filters = VF_MAC_CREDIT_CNT;
823 resc->num_vlan_filters = VF_VLAN_CREDIT_CNT;
824
825 /* no real limitation */
826 resc->num_mc_filters = 0;
827
828 /* num_sbs already set */
829 resc->num_sbs = vf->sb_count;
830 }
831
832 /* FLR routines: */
bnx2x_vf_free_resc(struct bnx2x * bp,struct bnx2x_virtf * vf)833 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
834 {
835 /* reset the state variables */
836 bnx2x_iov_static_resc(bp, vf);
837 vf->state = VF_FREE;
838 }
839
bnx2x_vf_flr_clnup_hw(struct bnx2x * bp,struct bnx2x_virtf * vf)840 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf)
841 {
842 u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
843
844 /* DQ usage counter */
845 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
846 bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT,
847 "DQ VF usage counter timed out",
848 poll_cnt);
849 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
850
851 /* FW cleanup command - poll for the results */
852 if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid),
853 poll_cnt))
854 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid);
855
856 /* verify TX hw is flushed */
857 bnx2x_tx_hw_flushed(bp, poll_cnt);
858 }
859
bnx2x_vf_flr(struct bnx2x * bp,struct bnx2x_virtf * vf)860 static void bnx2x_vf_flr(struct bnx2x *bp, struct bnx2x_virtf *vf)
861 {
862 int rc, i;
863
864 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
865
866 /* the cleanup operations are valid if and only if the VF
867 * was first acquired.
868 */
869 for (i = 0; i < vf_rxq_count(vf); i++) {
870 rc = bnx2x_vf_queue_flr(bp, vf, i);
871 if (rc)
872 goto out;
873 }
874
875 /* remove multicasts */
876 bnx2x_vf_mcast(bp, vf, NULL, 0, true);
877
878 /* dispatch final cleanup and wait for HW queues to flush */
879 bnx2x_vf_flr_clnup_hw(bp, vf);
880
881 /* release VF resources */
882 bnx2x_vf_free_resc(bp, vf);
883
884 vf->malicious = false;
885
886 /* re-open the mailbox */
887 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
888 return;
889 out:
890 BNX2X_ERR("vf[%d:%d] failed flr: rc %d\n",
891 vf->abs_vfid, i, rc);
892 }
893
bnx2x_vf_flr_clnup(struct bnx2x * bp)894 static void bnx2x_vf_flr_clnup(struct bnx2x *bp)
895 {
896 struct bnx2x_virtf *vf;
897 int i;
898
899 for (i = 0; i < BNX2X_NR_VIRTFN(bp); i++) {
900 /* VF should be RESET & in FLR cleanup states */
901 if (bnx2x_vf(bp, i, state) != VF_RESET ||
902 !bnx2x_vf(bp, i, flr_clnup_stage))
903 continue;
904
905 DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n",
906 i, BNX2X_NR_VIRTFN(bp));
907
908 vf = BP_VF(bp, i);
909
910 /* lock the vf pf channel */
911 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
912
913 /* invoke the VF FLR SM */
914 bnx2x_vf_flr(bp, vf);
915
916 /* mark the VF to be ACKED and continue */
917 vf->flr_clnup_stage = false;
918 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
919 }
920
921 /* Acknowledge the handled VFs.
922 * we are acknowledge all the vfs which an flr was requested for, even
923 * if amongst them there are such that we never opened, since the mcp
924 * will interrupt us immediately again if we only ack some of the bits,
925 * resulting in an endless loop. This can happen for example in KVM
926 * where an 'all ones' flr request is sometimes given by hyper visor
927 */
928 DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n",
929 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
930 for (i = 0; i < FLRD_VFS_DWORDS; i++)
931 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i],
932 bp->vfdb->flrd_vfs[i]);
933
934 bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0);
935
936 /* clear the acked bits - better yet if the MCP implemented
937 * write to clear semantics
938 */
939 for (i = 0; i < FLRD_VFS_DWORDS; i++)
940 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0);
941 }
942
bnx2x_vf_handle_flr_event(struct bnx2x * bp)943 void bnx2x_vf_handle_flr_event(struct bnx2x *bp)
944 {
945 int i;
946
947 /* Read FLR'd VFs */
948 for (i = 0; i < FLRD_VFS_DWORDS; i++)
949 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]);
950
951 DP(BNX2X_MSG_MCP,
952 "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n",
953 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
954
955 for_each_vf(bp, i) {
956 struct bnx2x_virtf *vf = BP_VF(bp, i);
957 u32 reset = 0;
958
959 if (vf->abs_vfid < 32)
960 reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid);
961 else
962 reset = bp->vfdb->flrd_vfs[1] &
963 (1 << (vf->abs_vfid - 32));
964
965 if (reset) {
966 /* set as reset and ready for cleanup */
967 vf->state = VF_RESET;
968 vf->flr_clnup_stage = true;
969
970 DP(BNX2X_MSG_IOV,
971 "Initiating Final cleanup for VF %d\n",
972 vf->abs_vfid);
973 }
974 }
975
976 /* do the FLR cleanup for all marked VFs*/
977 bnx2x_vf_flr_clnup(bp);
978 }
979
980 /* IOV global initialization routines */
bnx2x_iov_init_dq(struct bnx2x * bp)981 void bnx2x_iov_init_dq(struct bnx2x *bp)
982 {
983 if (!IS_SRIOV(bp))
984 return;
985
986 /* Set the DQ such that the CID reflect the abs_vfid */
987 REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0);
988 REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS));
989
990 /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to
991 * the PF L2 queues
992 */
993 REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID);
994
995 /* The VF window size is the log2 of the max number of CIDs per VF */
996 REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND);
997
998 /* The VF doorbell size 0 - *B, 4 - 128B. We set it here to match
999 * the Pf doorbell size although the 2 are independent.
1000 */
1001 REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST, 3);
1002
1003 /* No security checks for now -
1004 * configure single rule (out of 16) mask = 0x1, value = 0x0,
1005 * CID range 0 - 0x1ffff
1006 */
1007 REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1);
1008 REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0);
1009 REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0);
1010 REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff);
1011
1012 /* set the VF doorbell threshold. This threshold represents the amount
1013 * of doorbells allowed in the main DORQ fifo for a specific VF.
1014 */
1015 REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 64);
1016 }
1017
bnx2x_iov_init_dmae(struct bnx2x * bp)1018 void bnx2x_iov_init_dmae(struct bnx2x *bp)
1019 {
1020 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV))
1021 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
1022 }
1023
bnx2x_vf_domain(struct bnx2x * bp,int vfid)1024 static int bnx2x_vf_domain(struct bnx2x *bp, int vfid)
1025 {
1026 struct pci_dev *dev = bp->pdev;
1027
1028 return pci_domain_nr(dev->bus);
1029 }
1030
bnx2x_vf_bus(struct bnx2x * bp,int vfid)1031 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
1032 {
1033 struct pci_dev *dev = bp->pdev;
1034 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1035
1036 return dev->bus->number + ((dev->devfn + iov->offset +
1037 iov->stride * vfid) >> 8);
1038 }
1039
bnx2x_vf_devfn(struct bnx2x * bp,int vfid)1040 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid)
1041 {
1042 struct pci_dev *dev = bp->pdev;
1043 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1044
1045 return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff;
1046 }
1047
bnx2x_vf_set_bars(struct bnx2x * bp,struct bnx2x_virtf * vf)1048 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf)
1049 {
1050 int i, n;
1051 struct pci_dev *dev = bp->pdev;
1052 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1053
1054 for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) {
1055 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i);
1056 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i);
1057
1058 size /= iov->total;
1059 vf->bars[n].bar = start + size * vf->abs_vfid;
1060 vf->bars[n].size = size;
1061 }
1062 }
1063
1064 static int
bnx2x_get_vf_igu_cam_info(struct bnx2x * bp)1065 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
1066 {
1067 int sb_id;
1068 u32 val;
1069 u8 fid, current_pf = 0;
1070
1071 /* IGU in normal mode - read CAM */
1072 for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) {
1073 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4);
1074 if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
1075 continue;
1076 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
1077 if (fid & IGU_FID_ENCODE_IS_PF)
1078 current_pf = fid & IGU_FID_PF_NUM_MASK;
1079 else if (current_pf == BP_FUNC(bp))
1080 bnx2x_vf_set_igu_info(bp, sb_id,
1081 (fid & IGU_FID_VF_NUM_MASK));
1082 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
1083 ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"),
1084 ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) :
1085 (fid & IGU_FID_VF_NUM_MASK)), sb_id,
1086 GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR));
1087 }
1088 DP(BNX2X_MSG_IOV, "vf_sbs_pool is %d\n", BP_VFDB(bp)->vf_sbs_pool);
1089 return BP_VFDB(bp)->vf_sbs_pool;
1090 }
1091
__bnx2x_iov_free_vfdb(struct bnx2x * bp)1092 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp)
1093 {
1094 if (bp->vfdb) {
1095 kfree(bp->vfdb->vfqs);
1096 kfree(bp->vfdb->vfs);
1097 kfree(bp->vfdb);
1098 }
1099 bp->vfdb = NULL;
1100 }
1101
bnx2x_sriov_pci_cfg_info(struct bnx2x * bp,struct bnx2x_sriov * iov)1102 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1103 {
1104 int pos;
1105 struct pci_dev *dev = bp->pdev;
1106
1107 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
1108 if (!pos) {
1109 BNX2X_ERR("failed to find SRIOV capability in device\n");
1110 return -ENODEV;
1111 }
1112
1113 iov->pos = pos;
1114 DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos);
1115 pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
1116 pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total);
1117 pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial);
1118 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
1119 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
1120 pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
1121 pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
1122 pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
1123
1124 return 0;
1125 }
1126
bnx2x_sriov_info(struct bnx2x * bp,struct bnx2x_sriov * iov)1127 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1128 {
1129 u32 val;
1130
1131 /* read the SRIOV capability structure
1132 * The fields can be read via configuration read or
1133 * directly from the device (starting at offset PCICFG_OFFSET)
1134 */
1135 if (bnx2x_sriov_pci_cfg_info(bp, iov))
1136 return -ENODEV;
1137
1138 /* get the number of SRIOV bars */
1139 iov->nres = 0;
1140
1141 /* read the first_vfid */
1142 val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF);
1143 iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK)
1144 * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp));
1145
1146 DP(BNX2X_MSG_IOV,
1147 "IOV info[%d]: first vf %d, nres %d, cap 0x%x, ctrl 0x%x, total %d, initial %d, num vfs %d, offset %d, stride %d, page size 0x%x\n",
1148 BP_FUNC(bp),
1149 iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total,
1150 iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
1151
1152 return 0;
1153 }
1154
1155 /* must be called after PF bars are mapped */
bnx2x_iov_init_one(struct bnx2x * bp,int int_mode_param,int num_vfs_param)1156 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
1157 int num_vfs_param)
1158 {
1159 int err, i;
1160 struct bnx2x_sriov *iov;
1161 struct pci_dev *dev = bp->pdev;
1162
1163 bp->vfdb = NULL;
1164
1165 /* verify is pf */
1166 if (IS_VF(bp))
1167 return 0;
1168
1169 /* verify sriov capability is present in configuration space */
1170 if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV))
1171 return 0;
1172
1173 /* verify chip revision */
1174 if (CHIP_IS_E1x(bp))
1175 return 0;
1176
1177 /* check if SRIOV support is turned off */
1178 if (!num_vfs_param)
1179 return 0;
1180
1181 /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */
1182 if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) {
1183 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n",
1184 BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID);
1185 return 0;
1186 }
1187
1188 /* SRIOV can be enabled only with MSIX */
1189 if (int_mode_param == BNX2X_INT_MODE_MSI ||
1190 int_mode_param == BNX2X_INT_MODE_INTX) {
1191 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n");
1192 return 0;
1193 }
1194
1195 /* verify ari is enabled */
1196 if (!pci_ari_enabled(bp->pdev->bus)) {
1197 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n");
1198 return 0;
1199 }
1200
1201 /* verify igu is in normal mode */
1202 if (CHIP_INT_MODE_IS_BC(bp)) {
1203 BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n");
1204 return 0;
1205 }
1206
1207 /* allocate the vfs database */
1208 bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL);
1209 if (!bp->vfdb) {
1210 BNX2X_ERR("failed to allocate vf database\n");
1211 err = -ENOMEM;
1212 goto failed;
1213 }
1214
1215 /* get the sriov info - Linux already collected all the pertinent
1216 * information, however the sriov structure is for the private use
1217 * of the pci module. Also we want this information regardless
1218 * of the hyper-visor.
1219 */
1220 iov = &(bp->vfdb->sriov);
1221 err = bnx2x_sriov_info(bp, iov);
1222 if (err)
1223 goto failed;
1224
1225 /* SR-IOV capability was enabled but there are no VFs*/
1226 if (iov->total == 0) {
1227 err = 0;
1228 goto failed;
1229 }
1230
1231 iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param);
1232
1233 DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n",
1234 num_vfs_param, iov->nr_virtfn);
1235
1236 /* allocate the vf array */
1237 bp->vfdb->vfs = kcalloc(BNX2X_NR_VIRTFN(bp),
1238 sizeof(struct bnx2x_virtf),
1239 GFP_KERNEL);
1240 if (!bp->vfdb->vfs) {
1241 BNX2X_ERR("failed to allocate vf array\n");
1242 err = -ENOMEM;
1243 goto failed;
1244 }
1245
1246 /* Initial VF init - index and abs_vfid - nr_virtfn must be set */
1247 for_each_vf(bp, i) {
1248 bnx2x_vf(bp, i, index) = i;
1249 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i;
1250 bnx2x_vf(bp, i, state) = VF_FREE;
1251 mutex_init(&bnx2x_vf(bp, i, op_mutex));
1252 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE;
1253 /* enable spoofchk by default */
1254 bnx2x_vf(bp, i, spoofchk) = 1;
1255 }
1256
1257 /* re-read the IGU CAM for VFs - index and abs_vfid must be set */
1258 if (!bnx2x_get_vf_igu_cam_info(bp)) {
1259 BNX2X_ERR("No entries in IGU CAM for vfs\n");
1260 err = -EINVAL;
1261 goto failed;
1262 }
1263
1264 /* allocate the queue arrays for all VFs */
1265 bp->vfdb->vfqs = kcalloc(BNX2X_MAX_NUM_VF_QUEUES,
1266 sizeof(struct bnx2x_vf_queue),
1267 GFP_KERNEL);
1268
1269 if (!bp->vfdb->vfqs) {
1270 BNX2X_ERR("failed to allocate vf queue array\n");
1271 err = -ENOMEM;
1272 goto failed;
1273 }
1274
1275 /* Prepare the VFs event synchronization mechanism */
1276 mutex_init(&bp->vfdb->event_mutex);
1277
1278 mutex_init(&bp->vfdb->bulletin_mutex);
1279
1280 if (SHMEM2_HAS(bp, sriov_switch_mode))
1281 SHMEM2_WR(bp, sriov_switch_mode, SRIOV_SWITCH_MODE_VEB);
1282
1283 return 0;
1284 failed:
1285 DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
1286 __bnx2x_iov_free_vfdb(bp);
1287 return err;
1288 }
1289
bnx2x_iov_remove_one(struct bnx2x * bp)1290 void bnx2x_iov_remove_one(struct bnx2x *bp)
1291 {
1292 int vf_idx;
1293
1294 /* if SRIOV is not enabled there's nothing to do */
1295 if (!IS_SRIOV(bp))
1296 return;
1297
1298 bnx2x_disable_sriov(bp);
1299
1300 /* disable access to all VFs */
1301 for (vf_idx = 0; vf_idx < bp->vfdb->sriov.total; vf_idx++) {
1302 bnx2x_pretend_func(bp,
1303 HW_VF_HANDLE(bp,
1304 bp->vfdb->sriov.first_vf_in_pf +
1305 vf_idx));
1306 DP(BNX2X_MSG_IOV, "disabling internal access for vf %d\n",
1307 bp->vfdb->sriov.first_vf_in_pf + vf_idx);
1308 bnx2x_vf_enable_internal(bp, 0);
1309 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1310 }
1311
1312 /* free vf database */
1313 __bnx2x_iov_free_vfdb(bp);
1314 }
1315
bnx2x_iov_free_mem(struct bnx2x * bp)1316 void bnx2x_iov_free_mem(struct bnx2x *bp)
1317 {
1318 int i;
1319
1320 if (!IS_SRIOV(bp))
1321 return;
1322
1323 /* free vfs hw contexts */
1324 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
1325 struct hw_dma *cxt = &bp->vfdb->context[i];
1326 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size);
1327 }
1328
1329 BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr,
1330 BP_VFDB(bp)->sp_dma.mapping,
1331 BP_VFDB(bp)->sp_dma.size);
1332
1333 BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr,
1334 BP_VF_MBX_DMA(bp)->mapping,
1335 BP_VF_MBX_DMA(bp)->size);
1336
1337 BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr,
1338 BP_VF_BULLETIN_DMA(bp)->mapping,
1339 BP_VF_BULLETIN_DMA(bp)->size);
1340 }
1341
bnx2x_iov_alloc_mem(struct bnx2x * bp)1342 int bnx2x_iov_alloc_mem(struct bnx2x *bp)
1343 {
1344 size_t tot_size;
1345 int i, rc = 0;
1346
1347 if (!IS_SRIOV(bp))
1348 return rc;
1349
1350 /* allocate vfs hw contexts */
1351 tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) *
1352 BNX2X_CIDS_PER_VF * sizeof(union cdu_context);
1353
1354 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
1355 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i);
1356 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ);
1357
1358 if (cxt->size) {
1359 cxt->addr = BNX2X_PCI_ALLOC(&cxt->mapping, cxt->size);
1360 if (!cxt->addr)
1361 goto alloc_mem_err;
1362 } else {
1363 cxt->addr = NULL;
1364 cxt->mapping = 0;
1365 }
1366 tot_size -= cxt->size;
1367 }
1368
1369 /* allocate vfs ramrods dma memory - client_init and set_mac */
1370 tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp);
1371 BP_VFDB(bp)->sp_dma.addr = BNX2X_PCI_ALLOC(&BP_VFDB(bp)->sp_dma.mapping,
1372 tot_size);
1373 if (!BP_VFDB(bp)->sp_dma.addr)
1374 goto alloc_mem_err;
1375 BP_VFDB(bp)->sp_dma.size = tot_size;
1376
1377 /* allocate mailboxes */
1378 tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE;
1379 BP_VF_MBX_DMA(bp)->addr = BNX2X_PCI_ALLOC(&BP_VF_MBX_DMA(bp)->mapping,
1380 tot_size);
1381 if (!BP_VF_MBX_DMA(bp)->addr)
1382 goto alloc_mem_err;
1383
1384 BP_VF_MBX_DMA(bp)->size = tot_size;
1385
1386 /* allocate local bulletin boards */
1387 tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE;
1388 BP_VF_BULLETIN_DMA(bp)->addr = BNX2X_PCI_ALLOC(&BP_VF_BULLETIN_DMA(bp)->mapping,
1389 tot_size);
1390 if (!BP_VF_BULLETIN_DMA(bp)->addr)
1391 goto alloc_mem_err;
1392
1393 BP_VF_BULLETIN_DMA(bp)->size = tot_size;
1394
1395 return 0;
1396
1397 alloc_mem_err:
1398 return -ENOMEM;
1399 }
1400
bnx2x_vfq_init(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_queue * q)1401 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
1402 struct bnx2x_vf_queue *q)
1403 {
1404 u8 cl_id = vfq_cl_id(vf, q);
1405 u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
1406 unsigned long q_type = 0;
1407
1408 set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
1409 set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
1410
1411 /* Queue State object */
1412 bnx2x_init_queue_obj(bp, &q->sp_obj,
1413 cl_id, &q->cid, 1, func_id,
1414 bnx2x_vf_sp(bp, vf, q_data),
1415 bnx2x_vf_sp_map(bp, vf, q_data),
1416 q_type);
1417
1418 /* sp indication is set only when vlan/mac/etc. are initialized */
1419 q->sp_initialized = false;
1420
1421 DP(BNX2X_MSG_IOV,
1422 "initialized vf %d's queue object. func id set to %d. cid set to 0x%x\n",
1423 vf->abs_vfid, q->sp_obj.func_id, q->cid);
1424 }
1425
bnx2x_max_speed_cap(struct bnx2x * bp)1426 static int bnx2x_max_speed_cap(struct bnx2x *bp)
1427 {
1428 u32 supported = bp->port.supported[bnx2x_get_link_cfg_idx(bp)];
1429
1430 if (supported &
1431 (SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full))
1432 return 20000;
1433
1434 return 10000; /* assume lowest supported speed is 10G */
1435 }
1436
bnx2x_iov_link_update_vf(struct bnx2x * bp,int idx)1437 int bnx2x_iov_link_update_vf(struct bnx2x *bp, int idx)
1438 {
1439 struct bnx2x_link_report_data *state = &bp->last_reported_link;
1440 struct pf_vf_bulletin_content *bulletin;
1441 struct bnx2x_virtf *vf;
1442 bool update = true;
1443 int rc = 0;
1444
1445 /* sanity and init */
1446 rc = bnx2x_vf_op_prep(bp, idx, &vf, &bulletin, false);
1447 if (rc)
1448 return rc;
1449
1450 mutex_lock(&bp->vfdb->bulletin_mutex);
1451
1452 if (vf->link_cfg == IFLA_VF_LINK_STATE_AUTO) {
1453 bulletin->valid_bitmap |= 1 << LINK_VALID;
1454
1455 bulletin->link_speed = state->line_speed;
1456 bulletin->link_flags = 0;
1457 if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN,
1458 &state->link_report_flags))
1459 bulletin->link_flags |= VFPF_LINK_REPORT_LINK_DOWN;
1460 if (test_bit(BNX2X_LINK_REPORT_FD,
1461 &state->link_report_flags))
1462 bulletin->link_flags |= VFPF_LINK_REPORT_FULL_DUPLEX;
1463 if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON,
1464 &state->link_report_flags))
1465 bulletin->link_flags |= VFPF_LINK_REPORT_RX_FC_ON;
1466 if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON,
1467 &state->link_report_flags))
1468 bulletin->link_flags |= VFPF_LINK_REPORT_TX_FC_ON;
1469 } else if (vf->link_cfg == IFLA_VF_LINK_STATE_DISABLE &&
1470 !(bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)) {
1471 bulletin->valid_bitmap |= 1 << LINK_VALID;
1472 bulletin->link_flags |= VFPF_LINK_REPORT_LINK_DOWN;
1473 } else if (vf->link_cfg == IFLA_VF_LINK_STATE_ENABLE &&
1474 (bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)) {
1475 bulletin->valid_bitmap |= 1 << LINK_VALID;
1476 bulletin->link_speed = bnx2x_max_speed_cap(bp);
1477 bulletin->link_flags &= ~VFPF_LINK_REPORT_LINK_DOWN;
1478 } else {
1479 update = false;
1480 }
1481
1482 if (update) {
1483 DP(NETIF_MSG_LINK | BNX2X_MSG_IOV,
1484 "vf %d mode %u speed %d flags %x\n", idx,
1485 vf->link_cfg, bulletin->link_speed, bulletin->link_flags);
1486
1487 /* Post update on VF's bulletin board */
1488 rc = bnx2x_post_vf_bulletin(bp, idx);
1489 if (rc) {
1490 BNX2X_ERR("failed to update VF[%d] bulletin\n", idx);
1491 goto out;
1492 }
1493 }
1494
1495 out:
1496 mutex_unlock(&bp->vfdb->bulletin_mutex);
1497 return rc;
1498 }
1499
bnx2x_set_vf_link_state(struct net_device * dev,int idx,int link_state)1500 int bnx2x_set_vf_link_state(struct net_device *dev, int idx, int link_state)
1501 {
1502 struct bnx2x *bp = netdev_priv(dev);
1503 struct bnx2x_virtf *vf = BP_VF(bp, idx);
1504
1505 if (!vf)
1506 return -EINVAL;
1507
1508 if (vf->link_cfg == link_state)
1509 return 0; /* nothing todo */
1510
1511 vf->link_cfg = link_state;
1512
1513 return bnx2x_iov_link_update_vf(bp, idx);
1514 }
1515
bnx2x_iov_link_update(struct bnx2x * bp)1516 void bnx2x_iov_link_update(struct bnx2x *bp)
1517 {
1518 int vfid;
1519
1520 if (!IS_SRIOV(bp))
1521 return;
1522
1523 for_each_vf(bp, vfid)
1524 bnx2x_iov_link_update_vf(bp, vfid);
1525 }
1526
1527 /* called by bnx2x_nic_load */
bnx2x_iov_nic_init(struct bnx2x * bp)1528 int bnx2x_iov_nic_init(struct bnx2x *bp)
1529 {
1530 int vfid;
1531
1532 if (!IS_SRIOV(bp)) {
1533 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n");
1534 return 0;
1535 }
1536
1537 DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn);
1538
1539 /* let FLR complete ... */
1540 msleep(100);
1541
1542 /* initialize vf database */
1543 for_each_vf(bp, vfid) {
1544 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
1545
1546 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) *
1547 BNX2X_CIDS_PER_VF;
1548
1549 union cdu_context *base_cxt = (union cdu_context *)
1550 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
1551 (base_vf_cid & (ILT_PAGE_CIDS-1));
1552
1553 DP(BNX2X_MSG_IOV,
1554 "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n",
1555 vf->abs_vfid, vf_sb_count(vf), base_vf_cid,
1556 BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt);
1557
1558 /* init statically provisioned resources */
1559 bnx2x_iov_static_resc(bp, vf);
1560
1561 /* queues are initialized during VF-ACQUIRE */
1562 vf->filter_state = 0;
1563 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id);
1564
1565 bnx2x_init_credit_pool(&vf->vf_vlans_pool, 0,
1566 vf_vlan_rules_cnt(vf));
1567 bnx2x_init_credit_pool(&vf->vf_macs_pool, 0,
1568 vf_mac_rules_cnt(vf));
1569
1570 /* init mcast object - This object will be re-initialized
1571 * during VF-ACQUIRE with the proper cl_id and cid.
1572 * It needs to be initialized here so that it can be safely
1573 * handled by a subsequent FLR flow.
1574 */
1575 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF,
1576 0xFF, 0xFF, 0xFF,
1577 bnx2x_vf_sp(bp, vf, mcast_rdata),
1578 bnx2x_vf_sp_map(bp, vf, mcast_rdata),
1579 BNX2X_FILTER_MCAST_PENDING,
1580 &vf->filter_state,
1581 BNX2X_OBJ_TYPE_RX_TX);
1582
1583 /* set the mailbox message addresses */
1584 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *)
1585 (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid *
1586 MBX_MSG_ALIGNED_SIZE);
1587
1588 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping +
1589 vfid * MBX_MSG_ALIGNED_SIZE;
1590
1591 /* Enable vf mailbox */
1592 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
1593 }
1594
1595 /* Final VF init */
1596 for_each_vf(bp, vfid) {
1597 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
1598
1599 /* fill in the BDF and bars */
1600 vf->domain = bnx2x_vf_domain(bp, vfid);
1601 vf->bus = bnx2x_vf_bus(bp, vfid);
1602 vf->devfn = bnx2x_vf_devfn(bp, vfid);
1603 bnx2x_vf_set_bars(bp, vf);
1604
1605 DP(BNX2X_MSG_IOV,
1606 "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n",
1607 vf->abs_vfid, vf->bus, vf->devfn,
1608 (unsigned)vf->bars[0].bar, vf->bars[0].size,
1609 (unsigned)vf->bars[1].bar, vf->bars[1].size,
1610 (unsigned)vf->bars[2].bar, vf->bars[2].size);
1611 }
1612
1613 return 0;
1614 }
1615
1616 /* called by bnx2x_chip_cleanup */
bnx2x_iov_chip_cleanup(struct bnx2x * bp)1617 int bnx2x_iov_chip_cleanup(struct bnx2x *bp)
1618 {
1619 int i;
1620
1621 if (!IS_SRIOV(bp))
1622 return 0;
1623
1624 /* release all the VFs */
1625 for_each_vf(bp, i)
1626 bnx2x_vf_release(bp, BP_VF(bp, i));
1627
1628 return 0;
1629 }
1630
1631 /* called by bnx2x_init_hw_func, returns the next ilt line */
bnx2x_iov_init_ilt(struct bnx2x * bp,u16 line)1632 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line)
1633 {
1634 int i;
1635 struct bnx2x_ilt *ilt = BP_ILT(bp);
1636
1637 if (!IS_SRIOV(bp))
1638 return line;
1639
1640 /* set vfs ilt lines */
1641 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
1642 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i);
1643
1644 ilt->lines[line+i].page = hw_cxt->addr;
1645 ilt->lines[line+i].page_mapping = hw_cxt->mapping;
1646 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */
1647 }
1648 return line + i;
1649 }
1650
bnx2x_iov_is_vf_cid(struct bnx2x * bp,u16 cid)1651 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid)
1652 {
1653 return ((cid >= BNX2X_FIRST_VF_CID) &&
1654 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS));
1655 }
1656
1657 static
bnx2x_vf_handle_classification_eqe(struct bnx2x * bp,struct bnx2x_vf_queue * vfq,union event_ring_elem * elem)1658 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp,
1659 struct bnx2x_vf_queue *vfq,
1660 union event_ring_elem *elem)
1661 {
1662 unsigned long ramrod_flags = 0;
1663 int rc = 0;
1664 u32 echo = le32_to_cpu(elem->message.data.eth_event.echo);
1665
1666 /* Always push next commands out, don't wait here */
1667 set_bit(RAMROD_CONT, &ramrod_flags);
1668
1669 switch (echo >> BNX2X_SWCID_SHIFT) {
1670 case BNX2X_FILTER_MAC_PENDING:
1671 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem,
1672 &ramrod_flags);
1673 break;
1674 case BNX2X_FILTER_VLAN_PENDING:
1675 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem,
1676 &ramrod_flags);
1677 break;
1678 default:
1679 BNX2X_ERR("Unsupported classification command: 0x%x\n", echo);
1680 return;
1681 }
1682 if (rc < 0)
1683 BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
1684 else if (rc > 0)
1685 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n");
1686 }
1687
1688 static
bnx2x_vf_handle_mcast_eqe(struct bnx2x * bp,struct bnx2x_virtf * vf)1689 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp,
1690 struct bnx2x_virtf *vf)
1691 {
1692 struct bnx2x_mcast_ramrod_params rparam = {NULL};
1693 int rc;
1694
1695 rparam.mcast_obj = &vf->mcast_obj;
1696 vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw);
1697
1698 /* If there are pending mcast commands - send them */
1699 if (vf->mcast_obj.check_pending(&vf->mcast_obj)) {
1700 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
1701 if (rc < 0)
1702 BNX2X_ERR("Failed to send pending mcast commands: %d\n",
1703 rc);
1704 }
1705 }
1706
1707 static
bnx2x_vf_handle_filters_eqe(struct bnx2x * bp,struct bnx2x_virtf * vf)1708 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp,
1709 struct bnx2x_virtf *vf)
1710 {
1711 smp_mb__before_atomic();
1712 clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
1713 smp_mb__after_atomic();
1714 }
1715
bnx2x_vf_handle_rss_update_eqe(struct bnx2x * bp,struct bnx2x_virtf * vf)1716 static void bnx2x_vf_handle_rss_update_eqe(struct bnx2x *bp,
1717 struct bnx2x_virtf *vf)
1718 {
1719 vf->rss_conf_obj.raw.clear_pending(&vf->rss_conf_obj.raw);
1720 }
1721
bnx2x_iov_eq_sp_event(struct bnx2x * bp,union event_ring_elem * elem)1722 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
1723 {
1724 struct bnx2x_virtf *vf;
1725 int qidx = 0, abs_vfid;
1726 u8 opcode;
1727 u16 cid = 0xffff;
1728
1729 if (!IS_SRIOV(bp))
1730 return 1;
1731
1732 /* first get the cid - the only events we handle here are cfc-delete
1733 * and set-mac completion
1734 */
1735 opcode = elem->message.opcode;
1736
1737 switch (opcode) {
1738 case EVENT_RING_OPCODE_CFC_DEL:
1739 cid = SW_CID(elem->message.data.cfc_del_event.cid);
1740 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid);
1741 break;
1742 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
1743 case EVENT_RING_OPCODE_MULTICAST_RULES:
1744 case EVENT_RING_OPCODE_FILTERS_RULES:
1745 case EVENT_RING_OPCODE_RSS_UPDATE_RULES:
1746 cid = SW_CID(elem->message.data.eth_event.echo);
1747 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid);
1748 break;
1749 case EVENT_RING_OPCODE_VF_FLR:
1750 abs_vfid = elem->message.data.vf_flr_event.vf_id;
1751 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n",
1752 abs_vfid);
1753 goto get_vf;
1754 case EVENT_RING_OPCODE_MALICIOUS_VF:
1755 abs_vfid = elem->message.data.malicious_vf_event.vf_id;
1756 BNX2X_ERR("Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
1757 abs_vfid,
1758 elem->message.data.malicious_vf_event.err_id);
1759 goto get_vf;
1760 default:
1761 return 1;
1762 }
1763
1764 /* check if the cid is the VF range */
1765 if (!bnx2x_iov_is_vf_cid(bp, cid)) {
1766 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid);
1767 return 1;
1768 }
1769
1770 /* extract vf and rxq index from vf_cid - relies on the following:
1771 * 1. vfid on cid reflects the true abs_vfid
1772 * 2. The max number of VFs (per path) is 64
1773 */
1774 qidx = cid & ((1 << BNX2X_VF_CID_WND)-1);
1775 abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
1776 get_vf:
1777 vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
1778
1779 if (!vf) {
1780 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n",
1781 cid, abs_vfid);
1782 return 0;
1783 }
1784
1785 switch (opcode) {
1786 case EVENT_RING_OPCODE_CFC_DEL:
1787 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n",
1788 vf->abs_vfid, qidx);
1789 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp,
1790 &vfq_get(vf,
1791 qidx)->sp_obj,
1792 BNX2X_Q_CMD_CFC_DEL);
1793 break;
1794 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
1795 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n",
1796 vf->abs_vfid, qidx);
1797 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem);
1798 break;
1799 case EVENT_RING_OPCODE_MULTICAST_RULES:
1800 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n",
1801 vf->abs_vfid, qidx);
1802 bnx2x_vf_handle_mcast_eqe(bp, vf);
1803 break;
1804 case EVENT_RING_OPCODE_FILTERS_RULES:
1805 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n",
1806 vf->abs_vfid, qidx);
1807 bnx2x_vf_handle_filters_eqe(bp, vf);
1808 break;
1809 case EVENT_RING_OPCODE_RSS_UPDATE_RULES:
1810 DP(BNX2X_MSG_IOV, "got VF [%d:%d] RSS update ramrod\n",
1811 vf->abs_vfid, qidx);
1812 bnx2x_vf_handle_rss_update_eqe(bp, vf);
1813 fallthrough;
1814 case EVENT_RING_OPCODE_VF_FLR:
1815 /* Do nothing for now */
1816 return 0;
1817 case EVENT_RING_OPCODE_MALICIOUS_VF:
1818 vf->malicious = true;
1819 return 0;
1820 }
1821
1822 return 0;
1823 }
1824
bnx2x_vf_by_cid(struct bnx2x * bp,int vf_cid)1825 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid)
1826 {
1827 /* extract the vf from vf_cid - relies on the following:
1828 * 1. vfid on cid reflects the true abs_vfid
1829 * 2. The max number of VFs (per path) is 64
1830 */
1831 int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
1832 return bnx2x_vf_by_abs_fid(bp, abs_vfid);
1833 }
1834
bnx2x_iov_set_queue_sp_obj(struct bnx2x * bp,int vf_cid,struct bnx2x_queue_sp_obj ** q_obj)1835 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
1836 struct bnx2x_queue_sp_obj **q_obj)
1837 {
1838 struct bnx2x_virtf *vf;
1839
1840 if (!IS_SRIOV(bp))
1841 return;
1842
1843 vf = bnx2x_vf_by_cid(bp, vf_cid);
1844
1845 if (vf) {
1846 /* extract queue index from vf_cid - relies on the following:
1847 * 1. vfid on cid reflects the true abs_vfid
1848 * 2. The max number of VFs (per path) is 64
1849 */
1850 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1);
1851 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj);
1852 } else {
1853 BNX2X_ERR("No vf matching cid %d\n", vf_cid);
1854 }
1855 }
1856
bnx2x_iov_adjust_stats_req(struct bnx2x * bp)1857 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp)
1858 {
1859 int i;
1860 int first_queue_query_index, num_queues_req;
1861 struct stats_query_entry *cur_query_entry;
1862 u8 stats_count = 0;
1863 bool is_fcoe = false;
1864
1865 if (!IS_SRIOV(bp))
1866 return;
1867
1868 if (!NO_FCOE(bp))
1869 is_fcoe = true;
1870
1871 /* fcoe adds one global request and one queue request */
1872 num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe;
1873 first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX -
1874 (is_fcoe ? 0 : 1);
1875
1876 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS),
1877 "BNX2X_NUM_ETH_QUEUES %d, is_fcoe %d, first_queue_query_index %d => determined the last non virtual statistics query index is %d. Will add queries on top of that\n",
1878 BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index,
1879 first_queue_query_index + num_queues_req);
1880
1881 cur_query_entry = &bp->fw_stats_req->
1882 query[first_queue_query_index + num_queues_req];
1883
1884 for_each_vf(bp, i) {
1885 int j;
1886 struct bnx2x_virtf *vf = BP_VF(bp, i);
1887
1888 if (vf->state != VF_ENABLED) {
1889 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS),
1890 "vf %d not enabled so no stats for it\n",
1891 vf->abs_vfid);
1892 continue;
1893 }
1894
1895 if (vf->malicious) {
1896 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS),
1897 "vf %d malicious so no stats for it\n",
1898 vf->abs_vfid);
1899 continue;
1900 }
1901
1902 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS),
1903 "add addresses for vf %d\n", vf->abs_vfid);
1904 for_each_vfq(vf, j) {
1905 struct bnx2x_vf_queue *rxq = vfq_get(vf, j);
1906
1907 dma_addr_t q_stats_addr =
1908 vf->fw_stat_map + j * vf->stats_stride;
1909
1910 /* collect stats fro active queues only */
1911 if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) ==
1912 BNX2X_Q_LOGICAL_STATE_STOPPED)
1913 continue;
1914
1915 /* create stats query entry for this queue */
1916 cur_query_entry->kind = STATS_TYPE_QUEUE;
1917 cur_query_entry->index = vfq_stat_id(vf, rxq);
1918 cur_query_entry->funcID =
1919 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid));
1920 cur_query_entry->address.hi =
1921 cpu_to_le32(U64_HI(q_stats_addr));
1922 cur_query_entry->address.lo =
1923 cpu_to_le32(U64_LO(q_stats_addr));
1924 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS),
1925 "added address %x %x for vf %d queue %d client %d\n",
1926 cur_query_entry->address.hi,
1927 cur_query_entry->address.lo,
1928 cur_query_entry->funcID,
1929 j, cur_query_entry->index);
1930 cur_query_entry++;
1931 stats_count++;
1932
1933 /* all stats are coalesced to the leading queue */
1934 if (vf->cfg_flags & VF_CFG_STATS_COALESCE)
1935 break;
1936 }
1937 }
1938 bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count;
1939 }
1940
1941 /* VF API helpers */
bnx2x_vf_qtbl_set_q(struct bnx2x * bp,u8 abs_vfid,u8 qid,u8 enable)1942 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid,
1943 u8 enable)
1944 {
1945 u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4;
1946 u32 val = enable ? (abs_vfid | (1 << 6)) : 0;
1947
1948 REG_WR(bp, reg, val);
1949 }
1950
bnx2x_vf_clr_qtbl(struct bnx2x * bp,struct bnx2x_virtf * vf)1951 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf)
1952 {
1953 int i;
1954
1955 for_each_vfq(vf, i)
1956 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
1957 vfq_qzone_id(vf, vfq_get(vf, i)), false);
1958 }
1959
bnx2x_vf_igu_disable(struct bnx2x * bp,struct bnx2x_virtf * vf)1960 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf)
1961 {
1962 u32 val;
1963
1964 /* clear the VF configuration - pretend */
1965 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1966 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
1967 val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN |
1968 IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK);
1969 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
1970 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1971 }
1972
bnx2x_vf_max_queue_cnt(struct bnx2x * bp,struct bnx2x_virtf * vf)1973 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf)
1974 {
1975 return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF),
1976 BNX2X_VF_MAX_QUEUES);
1977 }
1978
1979 static
bnx2x_vf_chk_avail_resc(struct bnx2x * bp,struct bnx2x_virtf * vf,struct vf_pf_resc_request * req_resc)1980 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf,
1981 struct vf_pf_resc_request *req_resc)
1982 {
1983 u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
1984 u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
1985
1986 return ((req_resc->num_rxqs <= rxq_cnt) &&
1987 (req_resc->num_txqs <= txq_cnt) &&
1988 (req_resc->num_sbs <= vf_sb_count(vf)) &&
1989 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) &&
1990 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf)));
1991 }
1992
1993 /* CORE VF API */
bnx2x_vf_acquire(struct bnx2x * bp,struct bnx2x_virtf * vf,struct vf_pf_resc_request * resc)1994 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
1995 struct vf_pf_resc_request *resc)
1996 {
1997 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) *
1998 BNX2X_CIDS_PER_VF;
1999
2000 union cdu_context *base_cxt = (union cdu_context *)
2001 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2002 (base_vf_cid & (ILT_PAGE_CIDS-1));
2003 int i;
2004
2005 /* if state is 'acquired' the VF was not released or FLR'd, in
2006 * this case the returned resources match the acquired already
2007 * acquired resources. Verify that the requested numbers do
2008 * not exceed the already acquired numbers.
2009 */
2010 if (vf->state == VF_ACQUIRED) {
2011 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n",
2012 vf->abs_vfid);
2013
2014 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2015 BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n",
2016 vf->abs_vfid);
2017 return -EINVAL;
2018 }
2019 return 0;
2020 }
2021
2022 /* Otherwise vf state must be 'free' or 'reset' */
2023 if (vf->state != VF_FREE && vf->state != VF_RESET) {
2024 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n",
2025 vf->abs_vfid, vf->state);
2026 return -EINVAL;
2027 }
2028
2029 /* static allocation:
2030 * the global maximum number are fixed per VF. Fail the request if
2031 * requested number exceed these globals
2032 */
2033 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2034 DP(BNX2X_MSG_IOV,
2035 "cannot fulfill vf resource request. Placing maximal available values in response\n");
2036 /* set the max resource in the vf */
2037 return -ENOMEM;
2038 }
2039
2040 /* Set resources counters - 0 request means max available */
2041 vf_sb_count(vf) = resc->num_sbs;
2042 vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2043 vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2044
2045 DP(BNX2X_MSG_IOV,
2046 "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n",
2047 vf_sb_count(vf), vf_rxq_count(vf),
2048 vf_txq_count(vf), vf_mac_rules_cnt(vf),
2049 vf_vlan_rules_cnt(vf));
2050
2051 /* Initialize the queues */
2052 if (!vf->vfqs) {
2053 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n");
2054 return -EINVAL;
2055 }
2056
2057 for_each_vfq(vf, i) {
2058 struct bnx2x_vf_queue *q = vfq_get(vf, i);
2059
2060 if (!q) {
2061 BNX2X_ERR("q number %d was not allocated\n", i);
2062 return -EINVAL;
2063 }
2064
2065 q->index = i;
2066 q->cxt = &((base_cxt + i)->eth);
2067 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i;
2068
2069 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n",
2070 vf->abs_vfid, i, q->index, q->cid, q->cxt);
2071
2072 /* init SP objects */
2073 bnx2x_vfq_init(bp, vf, q);
2074 }
2075 vf->state = VF_ACQUIRED;
2076 return 0;
2077 }
2078
bnx2x_vf_init(struct bnx2x * bp,struct bnx2x_virtf * vf,dma_addr_t * sb_map)2079 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map)
2080 {
2081 struct bnx2x_func_init_params func_init = {0};
2082 int i;
2083
2084 /* the sb resources are initialized at this point, do the
2085 * FW/HW initializations
2086 */
2087 for_each_vf_sb(vf, i)
2088 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true,
2089 vf_igu_sb(vf, i), vf_igu_sb(vf, i));
2090
2091 /* Sanity checks */
2092 if (vf->state != VF_ACQUIRED) {
2093 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n",
2094 vf->abs_vfid, vf->state);
2095 return -EINVAL;
2096 }
2097
2098 /* let FLR complete ... */
2099 msleep(100);
2100
2101 /* FLR cleanup epilogue */
2102 if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid))
2103 return -EBUSY;
2104
2105 /* reset IGU VF statistics: MSIX */
2106 REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0);
2107
2108 /* function setup */
2109 func_init.pf_id = BP_FUNC(bp);
2110 func_init.func_id = FW_VF_HANDLE(vf->abs_vfid);
2111 bnx2x_func_init(bp, &func_init);
2112
2113 /* Enable the vf */
2114 bnx2x_vf_enable_access(bp, vf->abs_vfid);
2115 bnx2x_vf_enable_traffic(bp, vf);
2116
2117 /* queue protection table */
2118 for_each_vfq(vf, i)
2119 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2120 vfq_qzone_id(vf, vfq_get(vf, i)), true);
2121
2122 vf->state = VF_ENABLED;
2123
2124 /* update vf bulletin board */
2125 bnx2x_post_vf_bulletin(bp, vf->index);
2126
2127 return 0;
2128 }
2129
2130 struct set_vf_state_cookie {
2131 struct bnx2x_virtf *vf;
2132 u8 state;
2133 };
2134
bnx2x_set_vf_state(void * cookie)2135 static void bnx2x_set_vf_state(void *cookie)
2136 {
2137 struct set_vf_state_cookie *p = (struct set_vf_state_cookie *)cookie;
2138
2139 p->vf->state = p->state;
2140 }
2141
bnx2x_vf_close(struct bnx2x * bp,struct bnx2x_virtf * vf)2142 int bnx2x_vf_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
2143 {
2144 int rc = 0, i;
2145
2146 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
2147
2148 /* Close all queues */
2149 for (i = 0; i < vf_rxq_count(vf); i++) {
2150 rc = bnx2x_vf_queue_teardown(bp, vf, i);
2151 if (rc)
2152 goto op_err;
2153 }
2154
2155 /* disable the interrupts */
2156 DP(BNX2X_MSG_IOV, "disabling igu\n");
2157 bnx2x_vf_igu_disable(bp, vf);
2158
2159 /* disable the VF */
2160 DP(BNX2X_MSG_IOV, "clearing qtbl\n");
2161 bnx2x_vf_clr_qtbl(bp, vf);
2162
2163 /* need to make sure there are no outstanding stats ramrods which may
2164 * cause the device to access the VF's stats buffer which it will free
2165 * as soon as we return from the close flow.
2166 */
2167 {
2168 struct set_vf_state_cookie cookie;
2169
2170 cookie.vf = vf;
2171 cookie.state = VF_ACQUIRED;
2172 rc = bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie);
2173 if (rc)
2174 goto op_err;
2175 }
2176
2177 DP(BNX2X_MSG_IOV, "set state to acquired\n");
2178
2179 return 0;
2180 op_err:
2181 BNX2X_ERR("vf[%d] CLOSE error: rc %d\n", vf->abs_vfid, rc);
2182 return rc;
2183 }
2184
2185 /* VF release can be called either: 1. The VF was acquired but
2186 * not enabled 2. the vf was enabled or in the process of being
2187 * enabled
2188 */
bnx2x_vf_free(struct bnx2x * bp,struct bnx2x_virtf * vf)2189 int bnx2x_vf_free(struct bnx2x *bp, struct bnx2x_virtf *vf)
2190 {
2191 int rc;
2192
2193 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid,
2194 vf->state == VF_FREE ? "Free" :
2195 vf->state == VF_ACQUIRED ? "Acquired" :
2196 vf->state == VF_ENABLED ? "Enabled" :
2197 vf->state == VF_RESET ? "Reset" :
2198 "Unknown");
2199
2200 switch (vf->state) {
2201 case VF_ENABLED:
2202 rc = bnx2x_vf_close(bp, vf);
2203 if (rc)
2204 goto op_err;
2205 fallthrough; /* to release resources */
2206 case VF_ACQUIRED:
2207 DP(BNX2X_MSG_IOV, "about to free resources\n");
2208 bnx2x_vf_free_resc(bp, vf);
2209 break;
2210
2211 case VF_FREE:
2212 case VF_RESET:
2213 default:
2214 break;
2215 }
2216 return 0;
2217 op_err:
2218 BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, rc);
2219 return rc;
2220 }
2221
bnx2x_vf_rss_update(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_config_rss_params * rss)2222 int bnx2x_vf_rss_update(struct bnx2x *bp, struct bnx2x_virtf *vf,
2223 struct bnx2x_config_rss_params *rss)
2224 {
2225 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
2226 set_bit(RAMROD_COMP_WAIT, &rss->ramrod_flags);
2227 return bnx2x_config_rss(bp, rss);
2228 }
2229
bnx2x_vf_tpa_update(struct bnx2x * bp,struct bnx2x_virtf * vf,struct vfpf_tpa_tlv * tlv,struct bnx2x_queue_update_tpa_params * params)2230 int bnx2x_vf_tpa_update(struct bnx2x *bp, struct bnx2x_virtf *vf,
2231 struct vfpf_tpa_tlv *tlv,
2232 struct bnx2x_queue_update_tpa_params *params)
2233 {
2234 aligned_u64 *sge_addr = tlv->tpa_client_info.sge_addr;
2235 struct bnx2x_queue_state_params qstate;
2236 int qid, rc = 0;
2237
2238 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
2239
2240 /* Set ramrod params */
2241 memset(&qstate, 0, sizeof(struct bnx2x_queue_state_params));
2242 memcpy(&qstate.params.update_tpa, params,
2243 sizeof(struct bnx2x_queue_update_tpa_params));
2244 qstate.cmd = BNX2X_Q_CMD_UPDATE_TPA;
2245 set_bit(RAMROD_COMP_WAIT, &qstate.ramrod_flags);
2246
2247 for (qid = 0; qid < vf_rxq_count(vf); qid++) {
2248 qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
2249 qstate.params.update_tpa.sge_map = sge_addr[qid];
2250 DP(BNX2X_MSG_IOV, "sge_addr[%d:%d] %08x:%08x\n",
2251 vf->abs_vfid, qid, U64_HI(sge_addr[qid]),
2252 U64_LO(sge_addr[qid]));
2253 rc = bnx2x_queue_state_change(bp, &qstate);
2254 if (rc) {
2255 BNX2X_ERR("Failed to configure sge_addr %08x:%08x for [%d:%d]\n",
2256 U64_HI(sge_addr[qid]), U64_LO(sge_addr[qid]),
2257 vf->abs_vfid, qid);
2258 return rc;
2259 }
2260 }
2261
2262 return rc;
2263 }
2264
2265 /* VF release ~ VF close + VF release-resources
2266 * Release is the ultimate SW shutdown and is called whenever an
2267 * irrecoverable error is encountered.
2268 */
bnx2x_vf_release(struct bnx2x * bp,struct bnx2x_virtf * vf)2269 int bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf)
2270 {
2271 int rc;
2272
2273 DP(BNX2X_MSG_IOV, "PF releasing vf %d\n", vf->abs_vfid);
2274 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
2275
2276 rc = bnx2x_vf_free(bp, vf);
2277 if (rc)
2278 WARN(rc,
2279 "VF[%d] Failed to allocate resources for release op- rc=%d\n",
2280 vf->abs_vfid, rc);
2281 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
2282 return rc;
2283 }
2284
bnx2x_lock_vf_pf_channel(struct bnx2x * bp,struct bnx2x_virtf * vf,enum channel_tlvs tlv)2285 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
2286 enum channel_tlvs tlv)
2287 {
2288 /* we don't lock the channel for unsupported tlvs */
2289 if (!bnx2x_tlv_supported(tlv)) {
2290 BNX2X_ERR("attempting to lock with unsupported tlv. Aborting\n");
2291 return;
2292 }
2293
2294 /* lock the channel */
2295 mutex_lock(&vf->op_mutex);
2296
2297 /* record the locking op */
2298 vf->op_current = tlv;
2299
2300 /* log the lock */
2301 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n",
2302 vf->abs_vfid, tlv);
2303 }
2304
bnx2x_unlock_vf_pf_channel(struct bnx2x * bp,struct bnx2x_virtf * vf,enum channel_tlvs expected_tlv)2305 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
2306 enum channel_tlvs expected_tlv)
2307 {
2308 enum channel_tlvs current_tlv;
2309
2310 if (!vf) {
2311 BNX2X_ERR("VF was %p\n", vf);
2312 return;
2313 }
2314
2315 current_tlv = vf->op_current;
2316
2317 /* we don't unlock the channel for unsupported tlvs */
2318 if (!bnx2x_tlv_supported(expected_tlv))
2319 return;
2320
2321 WARN(expected_tlv != vf->op_current,
2322 "lock mismatch: expected %d found %d", expected_tlv,
2323 vf->op_current);
2324
2325 /* record the locking op */
2326 vf->op_current = CHANNEL_TLV_NONE;
2327
2328 /* lock the channel */
2329 mutex_unlock(&vf->op_mutex);
2330
2331 /* log the unlock */
2332 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n",
2333 vf->abs_vfid, current_tlv);
2334 }
2335
bnx2x_set_pf_tx_switching(struct bnx2x * bp,bool enable)2336 static int bnx2x_set_pf_tx_switching(struct bnx2x *bp, bool enable)
2337 {
2338 struct bnx2x_queue_state_params q_params;
2339 u32 prev_flags;
2340 int i, rc;
2341
2342 /* Verify changes are needed and record current Tx switching state */
2343 prev_flags = bp->flags;
2344 if (enable)
2345 bp->flags |= TX_SWITCHING;
2346 else
2347 bp->flags &= ~TX_SWITCHING;
2348 if (prev_flags == bp->flags)
2349 return 0;
2350
2351 /* Verify state enables the sending of queue ramrods */
2352 if ((bp->state != BNX2X_STATE_OPEN) ||
2353 (bnx2x_get_q_logical_state(bp,
2354 &bnx2x_sp_obj(bp, &bp->fp[0]).q_obj) !=
2355 BNX2X_Q_LOGICAL_STATE_ACTIVE))
2356 return 0;
2357
2358 /* send q. update ramrod to configure Tx switching */
2359 memset(&q_params, 0, sizeof(q_params));
2360 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
2361 q_params.cmd = BNX2X_Q_CMD_UPDATE;
2362 __set_bit(BNX2X_Q_UPDATE_TX_SWITCHING_CHNG,
2363 &q_params.params.update.update_flags);
2364 if (enable)
2365 __set_bit(BNX2X_Q_UPDATE_TX_SWITCHING,
2366 &q_params.params.update.update_flags);
2367 else
2368 __clear_bit(BNX2X_Q_UPDATE_TX_SWITCHING,
2369 &q_params.params.update.update_flags);
2370
2371 /* send the ramrod on all the queues of the PF */
2372 for_each_eth_queue(bp, i) {
2373 struct bnx2x_fastpath *fp = &bp->fp[i];
2374 int tx_idx;
2375
2376 /* Set the appropriate Queue object */
2377 q_params.q_obj = &bnx2x_sp_obj(bp, fp).q_obj;
2378
2379 for (tx_idx = FIRST_TX_COS_INDEX;
2380 tx_idx < fp->max_cos; tx_idx++) {
2381 q_params.params.update.cid_index = tx_idx;
2382
2383 /* Update the Queue state */
2384 rc = bnx2x_queue_state_change(bp, &q_params);
2385 if (rc) {
2386 BNX2X_ERR("Failed to configure Tx switching\n");
2387 return rc;
2388 }
2389 }
2390 }
2391
2392 DP(BNX2X_MSG_IOV, "%s Tx Switching\n", enable ? "Enabled" : "Disabled");
2393 return 0;
2394 }
2395
bnx2x_sriov_configure(struct pci_dev * dev,int num_vfs_param)2396 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
2397 {
2398 struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
2399
2400 if (!IS_SRIOV(bp)) {
2401 BNX2X_ERR("failed to configure SR-IOV since vfdb was not allocated. Check dmesg for errors in probe stage\n");
2402 return -EINVAL;
2403 }
2404
2405 DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
2406 num_vfs_param, BNX2X_NR_VIRTFN(bp));
2407
2408 /* HW channel is only operational when PF is up */
2409 if (bp->state != BNX2X_STATE_OPEN) {
2410 BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n");
2411 return -EINVAL;
2412 }
2413
2414 /* we are always bound by the total_vfs in the configuration space */
2415 if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) {
2416 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n",
2417 num_vfs_param, BNX2X_NR_VIRTFN(bp));
2418 num_vfs_param = BNX2X_NR_VIRTFN(bp);
2419 }
2420
2421 bp->requested_nr_virtfn = num_vfs_param;
2422 if (num_vfs_param == 0) {
2423 bnx2x_set_pf_tx_switching(bp, false);
2424 bnx2x_disable_sriov(bp);
2425 return 0;
2426 } else {
2427 return bnx2x_enable_sriov(bp);
2428 }
2429 }
2430
2431 #define IGU_ENTRY_SIZE 4
2432
bnx2x_enable_sriov(struct bnx2x * bp)2433 int bnx2x_enable_sriov(struct bnx2x *bp)
2434 {
2435 int rc = 0, req_vfs = bp->requested_nr_virtfn;
2436 int vf_idx, sb_idx, vfq_idx, qcount, first_vf;
2437 u32 igu_entry, address;
2438 u16 num_vf_queues;
2439
2440 if (req_vfs == 0)
2441 return 0;
2442
2443 first_vf = bp->vfdb->sriov.first_vf_in_pf;
2444
2445 /* statically distribute vf sb pool between VFs */
2446 num_vf_queues = min_t(u16, BNX2X_VF_MAX_QUEUES,
2447 BP_VFDB(bp)->vf_sbs_pool / req_vfs);
2448
2449 /* zero previous values learned from igu cam */
2450 for (vf_idx = 0; vf_idx < req_vfs; vf_idx++) {
2451 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
2452
2453 vf->sb_count = 0;
2454 vf_sb_count(BP_VF(bp, vf_idx)) = 0;
2455 }
2456 bp->vfdb->vf_sbs_pool = 0;
2457
2458 /* prepare IGU cam */
2459 sb_idx = BP_VFDB(bp)->first_vf_igu_entry;
2460 address = IGU_REG_MAPPING_MEMORY + sb_idx * IGU_ENTRY_SIZE;
2461 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
2462 for (vfq_idx = 0; vfq_idx < num_vf_queues; vfq_idx++) {
2463 igu_entry = vf_idx << IGU_REG_MAPPING_MEMORY_FID_SHIFT |
2464 vfq_idx << IGU_REG_MAPPING_MEMORY_VECTOR_SHIFT |
2465 IGU_REG_MAPPING_MEMORY_VALID;
2466 DP(BNX2X_MSG_IOV, "assigning sb %d to vf %d\n",
2467 sb_idx, vf_idx);
2468 REG_WR(bp, address, igu_entry);
2469 sb_idx++;
2470 address += IGU_ENTRY_SIZE;
2471 }
2472 }
2473
2474 /* Reinitialize vf database according to igu cam */
2475 bnx2x_get_vf_igu_cam_info(bp);
2476
2477 DP(BNX2X_MSG_IOV, "vf_sbs_pool %d, num_vf_queues %d\n",
2478 BP_VFDB(bp)->vf_sbs_pool, num_vf_queues);
2479
2480 qcount = 0;
2481 for_each_vf(bp, vf_idx) {
2482 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
2483
2484 /* set local queue arrays */
2485 vf->vfqs = &bp->vfdb->vfqs[qcount];
2486 qcount += vf_sb_count(vf);
2487 bnx2x_iov_static_resc(bp, vf);
2488 }
2489
2490 /* prepare msix vectors in VF configuration space - the value in the
2491 * PCI configuration space should be the index of the last entry,
2492 * namely one less than the actual size of the table
2493 */
2494 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
2495 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx));
2496 REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL,
2497 num_vf_queues - 1);
2498 DP(BNX2X_MSG_IOV, "set msix vec num in VF %d cfg space to %d\n",
2499 vf_idx, num_vf_queues - 1);
2500 }
2501 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
2502
2503 /* enable sriov. This will probe all the VFs, and consequentially cause
2504 * the "acquire" messages to appear on the VF PF channel.
2505 */
2506 DP(BNX2X_MSG_IOV, "about to call enable sriov\n");
2507 bnx2x_disable_sriov(bp);
2508
2509 rc = bnx2x_set_pf_tx_switching(bp, true);
2510 if (rc)
2511 return rc;
2512
2513 rc = pci_enable_sriov(bp->pdev, req_vfs);
2514 if (rc) {
2515 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
2516 return rc;
2517 }
2518 DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs);
2519 return req_vfs;
2520 }
2521
bnx2x_pf_set_vfs_vlan(struct bnx2x * bp)2522 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp)
2523 {
2524 int vfidx;
2525 struct pf_vf_bulletin_content *bulletin;
2526
2527 DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n");
2528 for_each_vf(bp, vfidx) {
2529 bulletin = BP_VF_BULLETIN(bp, vfidx);
2530 if (bulletin->valid_bitmap & (1 << VLAN_VALID))
2531 bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0,
2532 htons(ETH_P_8021Q));
2533 }
2534 }
2535
bnx2x_disable_sriov(struct bnx2x * bp)2536 void bnx2x_disable_sriov(struct bnx2x *bp)
2537 {
2538 if (pci_vfs_assigned(bp->pdev)) {
2539 DP(BNX2X_MSG_IOV,
2540 "Unloading driver while VFs are assigned - VFs will not be deallocated\n");
2541 return;
2542 }
2543
2544 pci_disable_sriov(bp->pdev);
2545 }
2546
bnx2x_vf_op_prep(struct bnx2x * bp,int vfidx,struct bnx2x_virtf ** vf,struct pf_vf_bulletin_content ** bulletin,bool test_queue)2547 static int bnx2x_vf_op_prep(struct bnx2x *bp, int vfidx,
2548 struct bnx2x_virtf **vf,
2549 struct pf_vf_bulletin_content **bulletin,
2550 bool test_queue)
2551 {
2552 if (bp->state != BNX2X_STATE_OPEN) {
2553 BNX2X_ERR("PF is down - can't utilize iov-related functionality\n");
2554 return -EINVAL;
2555 }
2556
2557 if (!IS_SRIOV(bp)) {
2558 BNX2X_ERR("sriov is disabled - can't utilize iov-related functionality\n");
2559 return -EINVAL;
2560 }
2561
2562 if (vfidx >= BNX2X_NR_VIRTFN(bp)) {
2563 BNX2X_ERR("VF is uninitialized - can't utilize iov-related functionality. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
2564 vfidx, BNX2X_NR_VIRTFN(bp));
2565 return -EINVAL;
2566 }
2567
2568 /* init members */
2569 *vf = BP_VF(bp, vfidx);
2570 *bulletin = BP_VF_BULLETIN(bp, vfidx);
2571
2572 if (!*vf) {
2573 BNX2X_ERR("Unable to get VF structure for vfidx %d\n", vfidx);
2574 return -EINVAL;
2575 }
2576
2577 if (test_queue && !(*vf)->vfqs) {
2578 BNX2X_ERR("vfqs struct is null. Was this invoked before dynamically enabling SR-IOV? vfidx was %d\n",
2579 vfidx);
2580 return -EINVAL;
2581 }
2582
2583 if (!*bulletin) {
2584 BNX2X_ERR("Bulletin Board struct is null for vfidx %d\n",
2585 vfidx);
2586 return -EINVAL;
2587 }
2588
2589 return 0;
2590 }
2591
bnx2x_get_vf_config(struct net_device * dev,int vfidx,struct ifla_vf_info * ivi)2592 int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
2593 struct ifla_vf_info *ivi)
2594 {
2595 struct bnx2x *bp = netdev_priv(dev);
2596 struct bnx2x_virtf *vf = NULL;
2597 struct pf_vf_bulletin_content *bulletin = NULL;
2598 struct bnx2x_vlan_mac_obj *mac_obj;
2599 struct bnx2x_vlan_mac_obj *vlan_obj;
2600 int rc;
2601
2602 /* sanity and init */
2603 rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true);
2604 if (rc)
2605 return rc;
2606
2607 mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
2608 vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
2609 if (!mac_obj || !vlan_obj) {
2610 BNX2X_ERR("VF partially initialized\n");
2611 return -EINVAL;
2612 }
2613
2614 ivi->vf = vfidx;
2615 ivi->qos = 0;
2616 ivi->max_tx_rate = 10000; /* always 10G. TBA take from link struct */
2617 ivi->min_tx_rate = 0;
2618 ivi->spoofchk = vf->spoofchk ? 1 : 0;
2619 ivi->linkstate = vf->link_cfg;
2620 if (vf->state == VF_ENABLED) {
2621 /* mac and vlan are in vlan_mac objects */
2622 if (bnx2x_validate_vf_sp_objs(bp, vf, false)) {
2623 mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac,
2624 0, ETH_ALEN);
2625 vlan_obj->get_n_elements(bp, vlan_obj, 1,
2626 (u8 *)&ivi->vlan, 0,
2627 VLAN_HLEN);
2628 }
2629 } else {
2630 mutex_lock(&bp->vfdb->bulletin_mutex);
2631 /* mac */
2632 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
2633 /* mac configured by ndo so its in bulletin board */
2634 memcpy(&ivi->mac, bulletin->mac, ETH_ALEN);
2635 else
2636 /* function has not been loaded yet. Show mac as 0s */
2637 eth_zero_addr(ivi->mac);
2638
2639 /* vlan */
2640 if (bulletin->valid_bitmap & (1 << VLAN_VALID))
2641 /* vlan configured by ndo so its in bulletin board */
2642 memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN);
2643 else
2644 /* function has not been loaded yet. Show vlans as 0s */
2645 memset(&ivi->vlan, 0, VLAN_HLEN);
2646
2647 mutex_unlock(&bp->vfdb->bulletin_mutex);
2648 }
2649
2650 return 0;
2651 }
2652
2653 /* New mac for VF. Consider these cases:
2654 * 1. VF hasn't been acquired yet - save the mac in local bulletin board and
2655 * supply at acquire.
2656 * 2. VF has already been acquired but has not yet initialized - store in local
2657 * bulletin board. mac will be posted on VF bulletin board after VF init. VF
2658 * will configure this mac when it is ready.
2659 * 3. VF has already initialized but has not yet setup a queue - post the new
2660 * mac on VF's bulletin board right now. VF will configure this mac when it
2661 * is ready.
2662 * 4. VF has already set a queue - delete any macs already configured for this
2663 * queue and manually config the new mac.
2664 * In any event, once this function has been called refuse any attempts by the
2665 * VF to configure any mac for itself except for this mac. In case of a race
2666 * where the VF fails to see the new post on its bulletin board before sending a
2667 * mac configuration request, the PF will simply fail the request and VF can try
2668 * again after consulting its bulletin board.
2669 */
bnx2x_set_vf_mac(struct net_device * dev,int vfidx,u8 * mac)2670 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
2671 {
2672 struct bnx2x *bp = netdev_priv(dev);
2673 int rc, q_logical_state;
2674 struct bnx2x_virtf *vf = NULL;
2675 struct pf_vf_bulletin_content *bulletin = NULL;
2676
2677 if (!is_valid_ether_addr(mac)) {
2678 BNX2X_ERR("mac address invalid\n");
2679 return -EINVAL;
2680 }
2681
2682 /* sanity and init */
2683 rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true);
2684 if (rc)
2685 return rc;
2686
2687 mutex_lock(&bp->vfdb->bulletin_mutex);
2688
2689 /* update PF's copy of the VF's bulletin. Will no longer accept mac
2690 * configuration requests from vf unless match this mac
2691 */
2692 bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID;
2693 memcpy(bulletin->mac, mac, ETH_ALEN);
2694
2695 /* Post update on VF's bulletin board */
2696 rc = bnx2x_post_vf_bulletin(bp, vfidx);
2697
2698 /* release lock before checking return code */
2699 mutex_unlock(&bp->vfdb->bulletin_mutex);
2700
2701 if (rc) {
2702 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
2703 return rc;
2704 }
2705
2706 q_logical_state =
2707 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj));
2708 if (vf->state == VF_ENABLED &&
2709 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
2710 /* configure the mac in device on this vf's queue */
2711 unsigned long ramrod_flags = 0;
2712 struct bnx2x_vlan_mac_obj *mac_obj;
2713
2714 /* User should be able to see failure reason in system logs */
2715 if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
2716 return -EINVAL;
2717
2718 /* must lock vfpf channel to protect against vf flows */
2719 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
2720
2721 /* remove existing eth macs */
2722 mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
2723 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
2724 if (rc) {
2725 BNX2X_ERR("failed to delete eth macs\n");
2726 rc = -EINVAL;
2727 goto out;
2728 }
2729
2730 /* remove existing uc list macs */
2731 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true);
2732 if (rc) {
2733 BNX2X_ERR("failed to delete uc_list macs\n");
2734 rc = -EINVAL;
2735 goto out;
2736 }
2737
2738 /* configure the new mac to device */
2739 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
2740 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true,
2741 BNX2X_ETH_MAC, &ramrod_flags);
2742
2743 out:
2744 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
2745 }
2746
2747 return rc;
2748 }
2749
bnx2x_set_vf_vlan_acceptance(struct bnx2x * bp,struct bnx2x_virtf * vf,bool accept)2750 static void bnx2x_set_vf_vlan_acceptance(struct bnx2x *bp,
2751 struct bnx2x_virtf *vf, bool accept)
2752 {
2753 struct bnx2x_rx_mode_ramrod_params rx_ramrod;
2754 unsigned long accept_flags;
2755
2756 /* need to remove/add the VF's accept_any_vlan bit */
2757 accept_flags = bnx2x_leading_vfq(vf, accept_flags);
2758 if (accept)
2759 set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept_flags);
2760 else
2761 clear_bit(BNX2X_ACCEPT_ANY_VLAN, &accept_flags);
2762
2763 bnx2x_vf_prep_rx_mode(bp, LEADING_IDX, &rx_ramrod, vf,
2764 accept_flags);
2765 bnx2x_leading_vfq(vf, accept_flags) = accept_flags;
2766 bnx2x_config_rx_mode(bp, &rx_ramrod);
2767 }
2768
bnx2x_set_vf_vlan_filter(struct bnx2x * bp,struct bnx2x_virtf * vf,u16 vlan,bool add)2769 static int bnx2x_set_vf_vlan_filter(struct bnx2x *bp, struct bnx2x_virtf *vf,
2770 u16 vlan, bool add)
2771 {
2772 struct bnx2x_vlan_mac_ramrod_params ramrod_param;
2773 unsigned long ramrod_flags = 0;
2774 int rc = 0;
2775
2776 /* configure the new vlan to device */
2777 memset(&ramrod_param, 0, sizeof(ramrod_param));
2778 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
2779 ramrod_param.vlan_mac_obj = &bnx2x_leading_vfq(vf, vlan_obj);
2780 ramrod_param.ramrod_flags = ramrod_flags;
2781 ramrod_param.user_req.u.vlan.vlan = vlan;
2782 ramrod_param.user_req.cmd = add ? BNX2X_VLAN_MAC_ADD
2783 : BNX2X_VLAN_MAC_DEL;
2784 rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
2785 if (rc) {
2786 BNX2X_ERR("failed to configure vlan\n");
2787 return -EINVAL;
2788 }
2789
2790 return 0;
2791 }
2792
bnx2x_set_vf_vlan(struct net_device * dev,int vfidx,u16 vlan,u8 qos,__be16 vlan_proto)2793 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos,
2794 __be16 vlan_proto)
2795 {
2796 struct pf_vf_bulletin_content *bulletin = NULL;
2797 struct bnx2x *bp = netdev_priv(dev);
2798 struct bnx2x_vlan_mac_obj *vlan_obj;
2799 unsigned long vlan_mac_flags = 0;
2800 unsigned long ramrod_flags = 0;
2801 struct bnx2x_virtf *vf = NULL;
2802 int i, rc;
2803
2804 if (vlan > 4095) {
2805 BNX2X_ERR("illegal vlan value %d\n", vlan);
2806 return -EINVAL;
2807 }
2808
2809 if (vlan_proto != htons(ETH_P_8021Q))
2810 return -EPROTONOSUPPORT;
2811
2812 DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n",
2813 vfidx, vlan, 0);
2814
2815 /* sanity and init */
2816 rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true);
2817 if (rc)
2818 return rc;
2819
2820 /* update PF's copy of the VF's bulletin. No point in posting the vlan
2821 * to the VF since it doesn't have anything to do with it. But it useful
2822 * to store it here in case the VF is not up yet and we can only
2823 * configure the vlan later when it does. Treat vlan id 0 as remove the
2824 * Host tag.
2825 */
2826 mutex_lock(&bp->vfdb->bulletin_mutex);
2827
2828 if (vlan > 0)
2829 bulletin->valid_bitmap |= 1 << VLAN_VALID;
2830 else
2831 bulletin->valid_bitmap &= ~(1 << VLAN_VALID);
2832 bulletin->vlan = vlan;
2833
2834 /* Post update on VF's bulletin board */
2835 rc = bnx2x_post_vf_bulletin(bp, vfidx);
2836 if (rc)
2837 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
2838 mutex_unlock(&bp->vfdb->bulletin_mutex);
2839
2840 /* is vf initialized and queue set up? */
2841 if (vf->state != VF_ENABLED ||
2842 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)) !=
2843 BNX2X_Q_LOGICAL_STATE_ACTIVE)
2844 return rc;
2845
2846 /* User should be able to see error in system logs */
2847 if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
2848 return -EINVAL;
2849
2850 /* must lock vfpf channel to protect against vf flows */
2851 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
2852
2853 /* remove existing vlans */
2854 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
2855 vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
2856 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags,
2857 &ramrod_flags);
2858 if (rc) {
2859 BNX2X_ERR("failed to delete vlans\n");
2860 rc = -EINVAL;
2861 goto out;
2862 }
2863
2864 /* clear accept_any_vlan when HV forces vlan, otherwise
2865 * according to VF capabilities
2866 */
2867 if (vlan || !(vf->cfg_flags & VF_CFG_VLAN_FILTER))
2868 bnx2x_set_vf_vlan_acceptance(bp, vf, !vlan);
2869
2870 rc = bnx2x_set_vf_vlan_filter(bp, vf, vlan, true);
2871 if (rc)
2872 goto out;
2873
2874 /* send queue update ramrods to configure default vlan and
2875 * silent vlan removal
2876 */
2877 for_each_vfq(vf, i) {
2878 struct bnx2x_queue_state_params q_params = {NULL};
2879 struct bnx2x_queue_update_params *update_params;
2880
2881 q_params.q_obj = &bnx2x_vfq(vf, i, sp_obj);
2882
2883 /* validate the Q is UP */
2884 if (bnx2x_get_q_logical_state(bp, q_params.q_obj) !=
2885 BNX2X_Q_LOGICAL_STATE_ACTIVE)
2886 continue;
2887
2888 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
2889 q_params.cmd = BNX2X_Q_CMD_UPDATE;
2890 update_params = &q_params.params.update;
2891 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
2892 &update_params->update_flags);
2893 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
2894 &update_params->update_flags);
2895 if (vlan == 0) {
2896 /* if vlan is 0 then we want to leave the VF traffic
2897 * untagged, and leave the incoming traffic untouched
2898 * (i.e. do not remove any vlan tags).
2899 */
2900 __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
2901 &update_params->update_flags);
2902 __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
2903 &update_params->update_flags);
2904 } else {
2905 /* configure default vlan to vf queue and set silent
2906 * vlan removal (the vf remains unaware of this vlan).
2907 */
2908 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
2909 &update_params->update_flags);
2910 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
2911 &update_params->update_flags);
2912 update_params->def_vlan = vlan;
2913 update_params->silent_removal_value =
2914 vlan & VLAN_VID_MASK;
2915 update_params->silent_removal_mask = VLAN_VID_MASK;
2916 }
2917
2918 /* Update the Queue state */
2919 rc = bnx2x_queue_state_change(bp, &q_params);
2920 if (rc) {
2921 BNX2X_ERR("Failed to configure default VLAN queue %d\n",
2922 i);
2923 goto out;
2924 }
2925 }
2926 out:
2927 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
2928
2929 if (rc)
2930 DP(BNX2X_MSG_IOV,
2931 "updated VF[%d] vlan configuration (vlan = %d)\n",
2932 vfidx, vlan);
2933
2934 return rc;
2935 }
2936
bnx2x_set_vf_spoofchk(struct net_device * dev,int idx,bool val)2937 int bnx2x_set_vf_spoofchk(struct net_device *dev, int idx, bool val)
2938 {
2939 struct bnx2x *bp = netdev_priv(dev);
2940 struct bnx2x_virtf *vf;
2941 int i, rc = 0;
2942
2943 vf = BP_VF(bp, idx);
2944 if (!vf)
2945 return -EINVAL;
2946
2947 /* nothing to do */
2948 if (vf->spoofchk == val)
2949 return 0;
2950
2951 vf->spoofchk = val ? 1 : 0;
2952
2953 DP(BNX2X_MSG_IOV, "%s spoofchk for VF %d\n",
2954 val ? "enabling" : "disabling", idx);
2955
2956 /* is vf initialized and queue set up? */
2957 if (vf->state != VF_ENABLED ||
2958 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)) !=
2959 BNX2X_Q_LOGICAL_STATE_ACTIVE)
2960 return rc;
2961
2962 /* User should be able to see error in system logs */
2963 if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
2964 return -EINVAL;
2965
2966 /* send queue update ramrods to configure spoofchk */
2967 for_each_vfq(vf, i) {
2968 struct bnx2x_queue_state_params q_params = {NULL};
2969 struct bnx2x_queue_update_params *update_params;
2970
2971 q_params.q_obj = &bnx2x_vfq(vf, i, sp_obj);
2972
2973 /* validate the Q is UP */
2974 if (bnx2x_get_q_logical_state(bp, q_params.q_obj) !=
2975 BNX2X_Q_LOGICAL_STATE_ACTIVE)
2976 continue;
2977
2978 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
2979 q_params.cmd = BNX2X_Q_CMD_UPDATE;
2980 update_params = &q_params.params.update;
2981 __set_bit(BNX2X_Q_UPDATE_ANTI_SPOOF_CHNG,
2982 &update_params->update_flags);
2983 if (val) {
2984 __set_bit(BNX2X_Q_UPDATE_ANTI_SPOOF,
2985 &update_params->update_flags);
2986 } else {
2987 __clear_bit(BNX2X_Q_UPDATE_ANTI_SPOOF,
2988 &update_params->update_flags);
2989 }
2990
2991 /* Update the Queue state */
2992 rc = bnx2x_queue_state_change(bp, &q_params);
2993 if (rc) {
2994 BNX2X_ERR("Failed to %s spoofchk on VF %d - vfq %d\n",
2995 val ? "enable" : "disable", idx, i);
2996 goto out;
2997 }
2998 }
2999 out:
3000 if (!rc)
3001 DP(BNX2X_MSG_IOV,
3002 "%s spoofchk for VF[%d]\n", val ? "Enabled" : "Disabled",
3003 idx);
3004
3005 return rc;
3006 }
3007
3008 /* crc is the first field in the bulletin board. Compute the crc over the
3009 * entire bulletin board excluding the crc field itself. Use the length field
3010 * as the Bulletin Board was posted by a PF with possibly a different version
3011 * from the vf which will sample it. Therefore, the length is computed by the
3012 * PF and then used blindly by the VF.
3013 */
bnx2x_crc_vf_bulletin(struct pf_vf_bulletin_content * bulletin)3014 u32 bnx2x_crc_vf_bulletin(struct pf_vf_bulletin_content *bulletin)
3015 {
3016 return crc32(BULLETIN_CRC_SEED,
3017 ((u8 *)bulletin) + sizeof(bulletin->crc),
3018 bulletin->length - sizeof(bulletin->crc));
3019 }
3020
3021 /* Check for new posts on the bulletin board */
bnx2x_sample_bulletin(struct bnx2x * bp)3022 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
3023 {
3024 struct pf_vf_bulletin_content *bulletin;
3025 int attempts;
3026
3027 /* sampling structure in mid post may result with corrupted data
3028 * validate crc to ensure coherency.
3029 */
3030 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
3031 u32 crc;
3032
3033 /* sample the bulletin board */
3034 memcpy(&bp->shadow_bulletin, bp->pf2vf_bulletin,
3035 sizeof(union pf_vf_bulletin));
3036
3037 crc = bnx2x_crc_vf_bulletin(&bp->shadow_bulletin.content);
3038
3039 if (bp->shadow_bulletin.content.crc == crc)
3040 break;
3041
3042 BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
3043 bp->shadow_bulletin.content.crc, crc);
3044 }
3045
3046 if (attempts >= BULLETIN_ATTEMPTS) {
3047 BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
3048 attempts);
3049 return PFVF_BULLETIN_CRC_ERR;
3050 }
3051 bulletin = &bp->shadow_bulletin.content;
3052
3053 /* bulletin board hasn't changed since last sample */
3054 if (bp->old_bulletin.version == bulletin->version)
3055 return PFVF_BULLETIN_UNCHANGED;
3056
3057 /* the mac address in bulletin board is valid and is new */
3058 if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID &&
3059 !ether_addr_equal(bulletin->mac, bp->old_bulletin.mac)) {
3060 /* update new mac to net device */
3061 memcpy(bp->dev->dev_addr, bulletin->mac, ETH_ALEN);
3062 }
3063
3064 if (bulletin->valid_bitmap & (1 << LINK_VALID)) {
3065 DP(BNX2X_MSG_IOV, "link update speed %d flags %x\n",
3066 bulletin->link_speed, bulletin->link_flags);
3067
3068 bp->vf_link_vars.line_speed = bulletin->link_speed;
3069 bp->vf_link_vars.link_report_flags = 0;
3070 /* Link is down */
3071 if (bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)
3072 __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
3073 &bp->vf_link_vars.link_report_flags);
3074 /* Full DUPLEX */
3075 if (bulletin->link_flags & VFPF_LINK_REPORT_FULL_DUPLEX)
3076 __set_bit(BNX2X_LINK_REPORT_FD,
3077 &bp->vf_link_vars.link_report_flags);
3078 /* Rx Flow Control is ON */
3079 if (bulletin->link_flags & VFPF_LINK_REPORT_RX_FC_ON)
3080 __set_bit(BNX2X_LINK_REPORT_RX_FC_ON,
3081 &bp->vf_link_vars.link_report_flags);
3082 /* Tx Flow Control is ON */
3083 if (bulletin->link_flags & VFPF_LINK_REPORT_TX_FC_ON)
3084 __set_bit(BNX2X_LINK_REPORT_TX_FC_ON,
3085 &bp->vf_link_vars.link_report_flags);
3086 __bnx2x_link_report(bp);
3087 }
3088
3089 /* copy new bulletin board to bp */
3090 memcpy(&bp->old_bulletin, bulletin,
3091 sizeof(struct pf_vf_bulletin_content));
3092
3093 return PFVF_BULLETIN_UPDATED;
3094 }
3095
bnx2x_timer_sriov(struct bnx2x * bp)3096 void bnx2x_timer_sriov(struct bnx2x *bp)
3097 {
3098 bnx2x_sample_bulletin(bp);
3099
3100 /* if channel is down we need to self destruct */
3101 if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN)
3102 bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
3103 BNX2X_MSG_IOV);
3104 }
3105
bnx2x_vf_doorbells(struct bnx2x * bp)3106 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
3107 {
3108 /* vf doorbells are embedded within the regview */
3109 return bp->regview + PXP_VF_ADDR_DB_START;
3110 }
3111
bnx2x_vf_pci_dealloc(struct bnx2x * bp)3112 void bnx2x_vf_pci_dealloc(struct bnx2x *bp)
3113 {
3114 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
3115 sizeof(struct bnx2x_vf_mbx_msg));
3116 BNX2X_PCI_FREE(bp->pf2vf_bulletin, bp->pf2vf_bulletin_mapping,
3117 sizeof(union pf_vf_bulletin));
3118 }
3119
bnx2x_vf_pci_alloc(struct bnx2x * bp)3120 int bnx2x_vf_pci_alloc(struct bnx2x *bp)
3121 {
3122 mutex_init(&bp->vf2pf_mutex);
3123
3124 /* allocate vf2pf mailbox for vf to pf channel */
3125 bp->vf2pf_mbox = BNX2X_PCI_ALLOC(&bp->vf2pf_mbox_mapping,
3126 sizeof(struct bnx2x_vf_mbx_msg));
3127 if (!bp->vf2pf_mbox)
3128 goto alloc_mem_err;
3129
3130 /* allocate pf 2 vf bulletin board */
3131 bp->pf2vf_bulletin = BNX2X_PCI_ALLOC(&bp->pf2vf_bulletin_mapping,
3132 sizeof(union pf_vf_bulletin));
3133 if (!bp->pf2vf_bulletin)
3134 goto alloc_mem_err;
3135
3136 bnx2x_vf_bulletin_finalize(&bp->pf2vf_bulletin->content, true);
3137
3138 return 0;
3139
3140 alloc_mem_err:
3141 bnx2x_vf_pci_dealloc(bp);
3142 return -ENOMEM;
3143 }
3144
bnx2x_iov_channel_down(struct bnx2x * bp)3145 void bnx2x_iov_channel_down(struct bnx2x *bp)
3146 {
3147 int vf_idx;
3148 struct pf_vf_bulletin_content *bulletin;
3149
3150 if (!IS_SRIOV(bp))
3151 return;
3152
3153 for_each_vf(bp, vf_idx) {
3154 /* locate this VFs bulletin board and update the channel down
3155 * bit
3156 */
3157 bulletin = BP_VF_BULLETIN(bp, vf_idx);
3158 bulletin->valid_bitmap |= 1 << CHANNEL_DOWN;
3159
3160 /* update vf bulletin board */
3161 bnx2x_post_vf_bulletin(bp, vf_idx);
3162 }
3163 }
3164
bnx2x_iov_task(struct work_struct * work)3165 void bnx2x_iov_task(struct work_struct *work)
3166 {
3167 struct bnx2x *bp = container_of(work, struct bnx2x, iov_task.work);
3168
3169 if (!netif_running(bp->dev))
3170 return;
3171
3172 if (test_and_clear_bit(BNX2X_IOV_HANDLE_FLR,
3173 &bp->iov_task_state))
3174 bnx2x_vf_handle_flr_event(bp);
3175
3176 if (test_and_clear_bit(BNX2X_IOV_HANDLE_VF_MSG,
3177 &bp->iov_task_state))
3178 bnx2x_vf_mbx(bp);
3179 }
3180
bnx2x_schedule_iov_task(struct bnx2x * bp,enum bnx2x_iov_flag flag)3181 void bnx2x_schedule_iov_task(struct bnx2x *bp, enum bnx2x_iov_flag flag)
3182 {
3183 smp_mb__before_atomic();
3184 set_bit(flag, &bp->iov_task_state);
3185 smp_mb__after_atomic();
3186 DP(BNX2X_MSG_IOV, "Scheduling iov task [Flag: %d]\n", flag);
3187 queue_delayed_work(bnx2x_iov_wq, &bp->iov_task, 0);
3188 }
3189