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Merge branch 'stable/for-jens-3.10' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / drivers / net / ethernet / broadcom / bnx2x / bnx2x_sriov.c
1 /* bnx2x_sriov.c: Broadcom Everest network driver.
2 *
3 * Copyright 2009-2013 Broadcom Corporation
4 *
5 * Unless you and Broadcom execute a separate written software license
6 * agreement governing use of this software, this software is licensed to you
7 * under the terms of the GNU General Public License version 2, available
8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
9 *
10 * Notwithstanding the above, under no circumstances may you combine this
11 * software in any way with any other Broadcom software provided under a
12 * license other than the GPL, without Broadcom's express prior written
13 * consent.
14 *
15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
16 * Written by: Shmulik Ravid <shmulikr@broadcom.com>
17 * Ariel Elior <ariele@broadcom.com>
18 *
19 */
20 #include "bnx2x.h"
21 #include "bnx2x_init.h"
22 #include "bnx2x_cmn.h"
23 #include "bnx2x_sp.h"
24 #include <linux/crc32.h>
25 #include <linux/if_vlan.h>
26
27 /* General service functions */
28 static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid,
29 u16 pf_id)
30 {
31 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid),
32 pf_id);
33 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid),
34 pf_id);
35 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid),
36 pf_id);
37 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid),
38 pf_id);
39 }
40
41 static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid,
42 u8 enable)
43 {
44 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid),
45 enable);
46 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid),
47 enable);
48 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid),
49 enable);
50 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid),
51 enable);
52 }
53
54 int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
55 {
56 int idx;
57
58 for_each_vf(bp, idx)
59 if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid)
60 break;
61 return idx;
62 }
63
64 static
65 struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
66 {
67 u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid);
68 return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL;
69 }
70
71 static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf,
72 u8 igu_sb_id, u8 segment, u16 index, u8 op,
73 u8 update)
74 {
75 /* acking a VF sb through the PF - use the GRC */
76 u32 ctl;
77 u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA;
78 u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL;
79 u32 func_encode = vf->abs_vfid;
80 u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id;
81 struct igu_regular cmd_data = {0};
82
83 cmd_data.sb_id_and_flags =
84 ((index << IGU_REGULAR_SB_INDEX_SHIFT) |
85 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
86 (update << IGU_REGULAR_BUPDATE_SHIFT) |
87 (op << IGU_REGULAR_ENABLE_INT_SHIFT));
88
89 ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT |
90 func_encode << IGU_CTRL_REG_FID_SHIFT |
91 IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT;
92
93 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
94 cmd_data.sb_id_and_flags, igu_addr_data);
95 REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags);
96 mmiowb();
97 barrier();
98
99 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
100 ctl, igu_addr_ctl);
101 REG_WR(bp, igu_addr_ctl, ctl);
102 mmiowb();
103 barrier();
104 }
105 /* VFOP - VF slow-path operation support */
106
107 #define BNX2X_VFOP_FILTER_ADD_CNT_MAX 0x10000
108
109 /* VFOP operations states */
110 enum bnx2x_vfop_qctor_state {
111 BNX2X_VFOP_QCTOR_INIT,
112 BNX2X_VFOP_QCTOR_SETUP,
113 BNX2X_VFOP_QCTOR_INT_EN
114 };
115
116 enum bnx2x_vfop_qdtor_state {
117 BNX2X_VFOP_QDTOR_HALT,
118 BNX2X_VFOP_QDTOR_TERMINATE,
119 BNX2X_VFOP_QDTOR_CFCDEL,
120 BNX2X_VFOP_QDTOR_DONE
121 };
122
123 enum bnx2x_vfop_vlan_mac_state {
124 BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
125 BNX2X_VFOP_VLAN_MAC_CLEAR,
126 BNX2X_VFOP_VLAN_MAC_CHK_DONE,
127 BNX2X_VFOP_MAC_CONFIG_LIST,
128 BNX2X_VFOP_VLAN_CONFIG_LIST,
129 BNX2X_VFOP_VLAN_CONFIG_LIST_0
130 };
131
132 enum bnx2x_vfop_qsetup_state {
133 BNX2X_VFOP_QSETUP_CTOR,
134 BNX2X_VFOP_QSETUP_VLAN0,
135 BNX2X_VFOP_QSETUP_DONE
136 };
137
138 enum bnx2x_vfop_mcast_state {
139 BNX2X_VFOP_MCAST_DEL,
140 BNX2X_VFOP_MCAST_ADD,
141 BNX2X_VFOP_MCAST_CHK_DONE
142 };
143 enum bnx2x_vfop_qflr_state {
144 BNX2X_VFOP_QFLR_CLR_VLAN,
145 BNX2X_VFOP_QFLR_CLR_MAC,
146 BNX2X_VFOP_QFLR_TERMINATE,
147 BNX2X_VFOP_QFLR_DONE
148 };
149
150 enum bnx2x_vfop_flr_state {
151 BNX2X_VFOP_FLR_QUEUES,
152 BNX2X_VFOP_FLR_HW
153 };
154
155 enum bnx2x_vfop_close_state {
156 BNX2X_VFOP_CLOSE_QUEUES,
157 BNX2X_VFOP_CLOSE_HW
158 };
159
160 enum bnx2x_vfop_rxmode_state {
161 BNX2X_VFOP_RXMODE_CONFIG,
162 BNX2X_VFOP_RXMODE_DONE
163 };
164
165 enum bnx2x_vfop_qteardown_state {
166 BNX2X_VFOP_QTEARDOWN_RXMODE,
167 BNX2X_VFOP_QTEARDOWN_CLR_VLAN,
168 BNX2X_VFOP_QTEARDOWN_CLR_MAC,
169 BNX2X_VFOP_QTEARDOWN_QDTOR,
170 BNX2X_VFOP_QTEARDOWN_DONE
171 };
172
173 #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0)
174
175 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
176 struct bnx2x_queue_init_params *init_params,
177 struct bnx2x_queue_setup_params *setup_params,
178 u16 q_idx, u16 sb_idx)
179 {
180 DP(BNX2X_MSG_IOV,
181 "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d",
182 vf->abs_vfid,
183 q_idx,
184 sb_idx,
185 init_params->tx.sb_cq_index,
186 init_params->tx.hc_rate,
187 setup_params->flags,
188 setup_params->txq_params.traffic_type);
189 }
190
191 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
192 struct bnx2x_queue_init_params *init_params,
193 struct bnx2x_queue_setup_params *setup_params,
194 u16 q_idx, u16 sb_idx)
195 {
196 struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params;
197
198 DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n"
199 "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n",
200 vf->abs_vfid,
201 q_idx,
202 sb_idx,
203 init_params->rx.sb_cq_index,
204 init_params->rx.hc_rate,
205 setup_params->gen_params.mtu,
206 rxq_params->buf_sz,
207 rxq_params->sge_buf_sz,
208 rxq_params->max_sges_pkt,
209 rxq_params->tpa_agg_sz,
210 setup_params->flags,
211 rxq_params->drop_flags,
212 rxq_params->cache_line_log);
213 }
214
215 void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
216 struct bnx2x_virtf *vf,
217 struct bnx2x_vf_queue *q,
218 struct bnx2x_vfop_qctor_params *p,
219 unsigned long q_type)
220 {
221 struct bnx2x_queue_init_params *init_p = &p->qstate.params.init;
222 struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup;
223
224 /* INIT */
225
226 /* Enable host coalescing in the transition to INIT state */
227 if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags))
228 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags);
229
230 if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags))
231 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags);
232
233 /* FW SB ID */
234 init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
235 init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
236
237 /* context */
238 init_p->cxts[0] = q->cxt;
239
240 /* SETUP */
241
242 /* Setup-op general parameters */
243 setup_p->gen_params.spcl_id = vf->sp_cl_id;
244 setup_p->gen_params.stat_id = vfq_stat_id(vf, q);
245
246 /* Setup-op pause params:
247 * Nothing to do, the pause thresholds are set by default to 0 which
248 * effectively turns off the feature for this queue. We don't want
249 * one queue (VF) to interfering with another queue (another VF)
250 */
251 if (vf->cfg_flags & VF_CFG_FW_FC)
252 BNX2X_ERR("No support for pause to VFs (abs_vfid: %d)\n",
253 vf->abs_vfid);
254 /* Setup-op flags:
255 * collect statistics, zero statistics, local-switching, security,
256 * OV for Flex10, RSS and MCAST for leading
257 */
258 if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags))
259 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags);
260
261 /* for VFs, enable tx switching, bd coherency, and mac address
262 * anti-spoofing
263 */
264 __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags);
265 __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags);
266 __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
267
268 if (vfq_is_leading(q)) {
269 __set_bit(BNX2X_Q_FLG_LEADING_RSS, &setup_p->flags);
270 __set_bit(BNX2X_Q_FLG_MCAST, &setup_p->flags);
271 }
272
273 /* Setup-op rx parameters */
274 if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) {
275 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params;
276
277 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q);
278 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx);
279 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid);
280
281 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags))
282 rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES;
283 }
284
285 /* Setup-op tx parameters */
286 if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) {
287 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss;
288 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
289 }
290 }
291
292 /* VFOP queue construction */
293 static void bnx2x_vfop_qctor(struct bnx2x *bp, struct bnx2x_virtf *vf)
294 {
295 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
296 struct bnx2x_vfop_args_qctor *args = &vfop->args.qctor;
297 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
298 enum bnx2x_vfop_qctor_state state = vfop->state;
299
300 bnx2x_vfop_reset_wq(vf);
301
302 if (vfop->rc < 0)
303 goto op_err;
304
305 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
306
307 switch (state) {
308 case BNX2X_VFOP_QCTOR_INIT:
309
310 /* has this queue already been opened? */
311 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
312 BNX2X_Q_LOGICAL_STATE_ACTIVE) {
313 DP(BNX2X_MSG_IOV,
314 "Entered qctor but queue was already up. Aborting gracefully\n");
315 goto op_done;
316 }
317
318 /* next state */
319 vfop->state = BNX2X_VFOP_QCTOR_SETUP;
320
321 q_params->cmd = BNX2X_Q_CMD_INIT;
322 vfop->rc = bnx2x_queue_state_change(bp, q_params);
323
324 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
325
326 case BNX2X_VFOP_QCTOR_SETUP:
327 /* next state */
328 vfop->state = BNX2X_VFOP_QCTOR_INT_EN;
329
330 /* copy pre-prepared setup params to the queue-state params */
331 vfop->op_p->qctor.qstate.params.setup =
332 vfop->op_p->qctor.prep_qsetup;
333
334 q_params->cmd = BNX2X_Q_CMD_SETUP;
335 vfop->rc = bnx2x_queue_state_change(bp, q_params);
336
337 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
338
339 case BNX2X_VFOP_QCTOR_INT_EN:
340
341 /* enable interrupts */
342 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, args->sb_idx),
343 USTORM_ID, 0, IGU_INT_ENABLE, 0);
344 goto op_done;
345 default:
346 bnx2x_vfop_default(state);
347 }
348 op_err:
349 BNX2X_ERR("QCTOR[%d:%d] error: cmd %d, rc %d\n",
350 vf->abs_vfid, args->qid, q_params->cmd, vfop->rc);
351 op_done:
352 bnx2x_vfop_end(bp, vf, vfop);
353 op_pending:
354 return;
355 }
356
357 static int bnx2x_vfop_qctor_cmd(struct bnx2x *bp,
358 struct bnx2x_virtf *vf,
359 struct bnx2x_vfop_cmd *cmd,
360 int qid)
361 {
362 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
363
364 if (vfop) {
365 vf->op_params.qctor.qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
366
367 vfop->args.qctor.qid = qid;
368 vfop->args.qctor.sb_idx = bnx2x_vfq(vf, qid, sb_idx);
369
370 bnx2x_vfop_opset(BNX2X_VFOP_QCTOR_INIT,
371 bnx2x_vfop_qctor, cmd->done);
372 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qctor,
373 cmd->block);
374 }
375 return -ENOMEM;
376 }
377
378 /* VFOP queue destruction */
379 static void bnx2x_vfop_qdtor(struct bnx2x *bp, struct bnx2x_virtf *vf)
380 {
381 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
382 struct bnx2x_vfop_args_qdtor *qdtor = &vfop->args.qdtor;
383 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
384 enum bnx2x_vfop_qdtor_state state = vfop->state;
385
386 bnx2x_vfop_reset_wq(vf);
387
388 if (vfop->rc < 0)
389 goto op_err;
390
391 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
392
393 switch (state) {
394 case BNX2X_VFOP_QDTOR_HALT:
395
396 /* has this queue already been stopped? */
397 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
398 BNX2X_Q_LOGICAL_STATE_STOPPED) {
399 DP(BNX2X_MSG_IOV,
400 "Entered qdtor but queue was already stopped. Aborting gracefully\n");
401 goto op_done;
402 }
403
404 /* next state */
405 vfop->state = BNX2X_VFOP_QDTOR_TERMINATE;
406
407 q_params->cmd = BNX2X_Q_CMD_HALT;
408 vfop->rc = bnx2x_queue_state_change(bp, q_params);
409
410 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
411
412 case BNX2X_VFOP_QDTOR_TERMINATE:
413 /* next state */
414 vfop->state = BNX2X_VFOP_QDTOR_CFCDEL;
415
416 q_params->cmd = BNX2X_Q_CMD_TERMINATE;
417 vfop->rc = bnx2x_queue_state_change(bp, q_params);
418
419 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
420
421 case BNX2X_VFOP_QDTOR_CFCDEL:
422 /* next state */
423 vfop->state = BNX2X_VFOP_QDTOR_DONE;
424
425 q_params->cmd = BNX2X_Q_CMD_CFC_DEL;
426 vfop->rc = bnx2x_queue_state_change(bp, q_params);
427
428 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
429 op_err:
430 BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n",
431 vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc);
432 op_done:
433 case BNX2X_VFOP_QDTOR_DONE:
434 /* invalidate the context */
435 qdtor->cxt->ustorm_ag_context.cdu_usage = 0;
436 qdtor->cxt->xstorm_ag_context.cdu_reserved = 0;
437 bnx2x_vfop_end(bp, vf, vfop);
438 return;
439 default:
440 bnx2x_vfop_default(state);
441 }
442 op_pending:
443 return;
444 }
445
446 static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
447 struct bnx2x_virtf *vf,
448 struct bnx2x_vfop_cmd *cmd,
449 int qid)
450 {
451 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
452
453 if (vfop) {
454 struct bnx2x_queue_state_params *qstate =
455 &vf->op_params.qctor.qstate;
456
457 memset(qstate, 0, sizeof(*qstate));
458 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
459
460 vfop->args.qdtor.qid = qid;
461 vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt);
462
463 bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT,
464 bnx2x_vfop_qdtor, cmd->done);
465 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
466 cmd->block);
467 }
468 DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid);
469 return -ENOMEM;
470 }
471
472 static void
473 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
474 {
475 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
476 if (vf) {
477 if (!vf_sb_count(vf))
478 vf->igu_base_id = igu_sb_id;
479 ++vf_sb_count(vf);
480 }
481 }
482
483 /* VFOP MAC/VLAN helpers */
484 static inline void bnx2x_vfop_credit(struct bnx2x *bp,
485 struct bnx2x_vfop *vfop,
486 struct bnx2x_vlan_mac_obj *obj)
487 {
488 struct bnx2x_vfop_args_filters *args = &vfop->args.filters;
489
490 /* update credit only if there is no error
491 * and a valid credit counter
492 */
493 if (!vfop->rc && args->credit) {
494 int cnt = 0;
495 struct list_head *pos;
496
497 list_for_each(pos, &obj->head)
498 cnt++;
499
500 atomic_set(args->credit, cnt);
501 }
502 }
503
504 static int bnx2x_vfop_set_user_req(struct bnx2x *bp,
505 struct bnx2x_vfop_filter *pos,
506 struct bnx2x_vlan_mac_data *user_req)
507 {
508 user_req->cmd = pos->add ? BNX2X_VLAN_MAC_ADD :
509 BNX2X_VLAN_MAC_DEL;
510
511 switch (pos->type) {
512 case BNX2X_VFOP_FILTER_MAC:
513 memcpy(user_req->u.mac.mac, pos->mac, ETH_ALEN);
514 break;
515 case BNX2X_VFOP_FILTER_VLAN:
516 user_req->u.vlan.vlan = pos->vid;
517 break;
518 default:
519 BNX2X_ERR("Invalid filter type, skipping\n");
520 return 1;
521 }
522 return 0;
523 }
524
525 static int
526 bnx2x_vfop_config_vlan0(struct bnx2x *bp,
527 struct bnx2x_vlan_mac_ramrod_params *vlan_mac,
528 bool add)
529 {
530 int rc;
531
532 vlan_mac->user_req.cmd = add ? BNX2X_VLAN_MAC_ADD :
533 BNX2X_VLAN_MAC_DEL;
534 vlan_mac->user_req.u.vlan.vlan = 0;
535
536 rc = bnx2x_config_vlan_mac(bp, vlan_mac);
537 if (rc == -EEXIST)
538 rc = 0;
539 return rc;
540 }
541
542 static int bnx2x_vfop_config_list(struct bnx2x *bp,
543 struct bnx2x_vfop_filters *filters,
544 struct bnx2x_vlan_mac_ramrod_params *vlan_mac)
545 {
546 struct bnx2x_vfop_filter *pos, *tmp;
547 struct list_head rollback_list, *filters_list = &filters->head;
548 struct bnx2x_vlan_mac_data *user_req = &vlan_mac->user_req;
549 int rc = 0, cnt = 0;
550
551 INIT_LIST_HEAD(&rollback_list);
552
553 list_for_each_entry_safe(pos, tmp, filters_list, link) {
554 if (bnx2x_vfop_set_user_req(bp, pos, user_req))
555 continue;
556
557 rc = bnx2x_config_vlan_mac(bp, vlan_mac);
558 if (rc >= 0) {
559 cnt += pos->add ? 1 : -1;
560 list_move(&pos->link, &rollback_list);
561 rc = 0;
562 } else if (rc == -EEXIST) {
563 rc = 0;
564 } else {
565 BNX2X_ERR("Failed to add a new vlan_mac command\n");
566 break;
567 }
568 }
569
570 /* rollback if error or too many rules added */
571 if (rc || cnt > filters->add_cnt) {
572 BNX2X_ERR("error or too many rules added. Performing rollback\n");
573 list_for_each_entry_safe(pos, tmp, &rollback_list, link) {
574 pos->add = !pos->add; /* reverse op */
575 bnx2x_vfop_set_user_req(bp, pos, user_req);
576 bnx2x_config_vlan_mac(bp, vlan_mac);
577 list_del(&pos->link);
578 }
579 cnt = 0;
580 if (!rc)
581 rc = -EINVAL;
582 }
583 filters->add_cnt = cnt;
584 return rc;
585 }
586
587 /* VFOP set VLAN/MAC */
588 static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
589 {
590 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
591 struct bnx2x_vlan_mac_ramrod_params *vlan_mac = &vfop->op_p->vlan_mac;
592 struct bnx2x_vlan_mac_obj *obj = vlan_mac->vlan_mac_obj;
593 struct bnx2x_vfop_filters *filters = vfop->args.filters.multi_filter;
594
595 enum bnx2x_vfop_vlan_mac_state state = vfop->state;
596
597 if (vfop->rc < 0)
598 goto op_err;
599
600 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
601
602 bnx2x_vfop_reset_wq(vf);
603
604 switch (state) {
605 case BNX2X_VFOP_VLAN_MAC_CLEAR:
606 /* next state */
607 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
608
609 /* do delete */
610 vfop->rc = obj->delete_all(bp, obj,
611 &vlan_mac->user_req.vlan_mac_flags,
612 &vlan_mac->ramrod_flags);
613
614 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
615
616 case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE:
617 /* next state */
618 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
619
620 /* do config */
621 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
622 if (vfop->rc == -EEXIST)
623 vfop->rc = 0;
624
625 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
626
627 case BNX2X_VFOP_VLAN_MAC_CHK_DONE:
628 vfop->rc = !!obj->raw.check_pending(&obj->raw);
629 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
630
631 case BNX2X_VFOP_MAC_CONFIG_LIST:
632 /* next state */
633 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
634
635 /* do list config */
636 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
637 if (vfop->rc)
638 goto op_err;
639
640 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
641 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
642 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
643
644 case BNX2X_VFOP_VLAN_CONFIG_LIST:
645 /* next state */
646 vfop->state = BNX2X_VFOP_VLAN_CONFIG_LIST_0;
647
648 /* remove vlan0 - could be no-op */
649 vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, false);
650 if (vfop->rc)
651 goto op_err;
652
653 /* Do vlan list config. if this operation fails we try to
654 * restore vlan0 to keep the queue is working order
655 */
656 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
657 if (!vfop->rc) {
658 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
659 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
660 }
661 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); /* fall-through */
662
663 case BNX2X_VFOP_VLAN_CONFIG_LIST_0:
664 /* next state */
665 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
666
667 if (list_empty(&obj->head))
668 /* add vlan0 */
669 vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, true);
670 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
671
672 default:
673 bnx2x_vfop_default(state);
674 }
675 op_err:
676 BNX2X_ERR("VLAN-MAC error: rc %d\n", vfop->rc);
677 op_done:
678 kfree(filters);
679 bnx2x_vfop_credit(bp, vfop, obj);
680 bnx2x_vfop_end(bp, vf, vfop);
681 op_pending:
682 return;
683 }
684
685 struct bnx2x_vfop_vlan_mac_flags {
686 bool drv_only;
687 bool dont_consume;
688 bool single_cmd;
689 bool add;
690 };
691
692 static void
693 bnx2x_vfop_vlan_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
694 struct bnx2x_vfop_vlan_mac_flags *flags)
695 {
696 struct bnx2x_vlan_mac_data *ureq = &ramrod->user_req;
697
698 memset(ramrod, 0, sizeof(*ramrod));
699
700 /* ramrod flags */
701 if (flags->drv_only)
702 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod->ramrod_flags);
703 if (flags->single_cmd)
704 set_bit(RAMROD_EXEC, &ramrod->ramrod_flags);
705
706 /* mac_vlan flags */
707 if (flags->dont_consume)
708 set_bit(BNX2X_DONT_CONSUME_CAM_CREDIT, &ureq->vlan_mac_flags);
709
710 /* cmd */
711 ureq->cmd = flags->add ? BNX2X_VLAN_MAC_ADD : BNX2X_VLAN_MAC_DEL;
712 }
713
714 static inline void
715 bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
716 struct bnx2x_vfop_vlan_mac_flags *flags)
717 {
718 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, flags);
719 set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags);
720 }
721
722 static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp,
723 struct bnx2x_virtf *vf,
724 struct bnx2x_vfop_cmd *cmd,
725 int qid, bool drv_only)
726 {
727 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
728
729 if (vfop) {
730 struct bnx2x_vfop_args_filters filters = {
731 .multi_filter = NULL, /* single */
732 .credit = NULL, /* consume credit */
733 };
734 struct bnx2x_vfop_vlan_mac_flags flags = {
735 .drv_only = drv_only,
736 .dont_consume = (filters.credit != NULL),
737 .single_cmd = true,
738 .add = false /* don't care */,
739 };
740 struct bnx2x_vlan_mac_ramrod_params *ramrod =
741 &vf->op_params.vlan_mac;
742
743 /* set ramrod params */
744 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
745
746 /* set object */
747 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
748
749 /* set extra args */
750 vfop->args.filters = filters;
751
752 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
753 bnx2x_vfop_vlan_mac, cmd->done);
754 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
755 cmd->block);
756 }
757 return -ENOMEM;
758 }
759
760 int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
761 struct bnx2x_virtf *vf,
762 struct bnx2x_vfop_cmd *cmd,
763 struct bnx2x_vfop_filters *macs,
764 int qid, bool drv_only)
765 {
766 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
767
768 if (vfop) {
769 struct bnx2x_vfop_args_filters filters = {
770 .multi_filter = macs,
771 .credit = NULL, /* consume credit */
772 };
773 struct bnx2x_vfop_vlan_mac_flags flags = {
774 .drv_only = drv_only,
775 .dont_consume = (filters.credit != NULL),
776 .single_cmd = false,
777 .add = false, /* don't care since only the items in the
778 * filters list affect the sp operation,
779 * not the list itself
780 */
781 };
782 struct bnx2x_vlan_mac_ramrod_params *ramrod =
783 &vf->op_params.vlan_mac;
784
785 /* set ramrod params */
786 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
787
788 /* set object */
789 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
790
791 /* set extra args */
792 filters.multi_filter->add_cnt = BNX2X_VFOP_FILTER_ADD_CNT_MAX;
793 vfop->args.filters = filters;
794
795 bnx2x_vfop_opset(BNX2X_VFOP_MAC_CONFIG_LIST,
796 bnx2x_vfop_vlan_mac, cmd->done);
797 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
798 cmd->block);
799 }
800 return -ENOMEM;
801 }
802
803 int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
804 struct bnx2x_virtf *vf,
805 struct bnx2x_vfop_cmd *cmd,
806 int qid, u16 vid, bool add)
807 {
808 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
809
810 if (vfop) {
811 struct bnx2x_vfop_args_filters filters = {
812 .multi_filter = NULL, /* single command */
813 .credit = &bnx2x_vfq(vf, qid, vlan_count),
814 };
815 struct bnx2x_vfop_vlan_mac_flags flags = {
816 .drv_only = false,
817 .dont_consume = (filters.credit != NULL),
818 .single_cmd = true,
819 .add = add,
820 };
821 struct bnx2x_vlan_mac_ramrod_params *ramrod =
822 &vf->op_params.vlan_mac;
823
824 /* set ramrod params */
825 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
826 ramrod->user_req.u.vlan.vlan = vid;
827
828 /* set object */
829 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
830
831 /* set extra args */
832 vfop->args.filters = filters;
833
834 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
835 bnx2x_vfop_vlan_mac, cmd->done);
836 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
837 cmd->block);
838 }
839 return -ENOMEM;
840 }
841
842 static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp,
843 struct bnx2x_virtf *vf,
844 struct bnx2x_vfop_cmd *cmd,
845 int qid, bool drv_only)
846 {
847 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
848
849 if (vfop) {
850 struct bnx2x_vfop_args_filters filters = {
851 .multi_filter = NULL, /* single command */
852 .credit = &bnx2x_vfq(vf, qid, vlan_count),
853 };
854 struct bnx2x_vfop_vlan_mac_flags flags = {
855 .drv_only = drv_only,
856 .dont_consume = (filters.credit != NULL),
857 .single_cmd = true,
858 .add = false, /* don't care */
859 };
860 struct bnx2x_vlan_mac_ramrod_params *ramrod =
861 &vf->op_params.vlan_mac;
862
863 /* set ramrod params */
864 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
865
866 /* set object */
867 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
868
869 /* set extra args */
870 vfop->args.filters = filters;
871
872 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
873 bnx2x_vfop_vlan_mac, cmd->done);
874 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
875 cmd->block);
876 }
877 return -ENOMEM;
878 }
879
880 int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
881 struct bnx2x_virtf *vf,
882 struct bnx2x_vfop_cmd *cmd,
883 struct bnx2x_vfop_filters *vlans,
884 int qid, bool drv_only)
885 {
886 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
887
888 if (vfop) {
889 struct bnx2x_vfop_args_filters filters = {
890 .multi_filter = vlans,
891 .credit = &bnx2x_vfq(vf, qid, vlan_count),
892 };
893 struct bnx2x_vfop_vlan_mac_flags flags = {
894 .drv_only = drv_only,
895 .dont_consume = (filters.credit != NULL),
896 .single_cmd = false,
897 .add = false, /* don't care */
898 };
899 struct bnx2x_vlan_mac_ramrod_params *ramrod =
900 &vf->op_params.vlan_mac;
901
902 /* set ramrod params */
903 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
904
905 /* set object */
906 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
907
908 /* set extra args */
909 filters.multi_filter->add_cnt = vf_vlan_rules_cnt(vf) -
910 atomic_read(filters.credit);
911
912 vfop->args.filters = filters;
913
914 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_CONFIG_LIST,
915 bnx2x_vfop_vlan_mac, cmd->done);
916 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
917 cmd->block);
918 }
919 return -ENOMEM;
920 }
921
922 /* VFOP queue setup (queue constructor + set vlan 0) */
923 static void bnx2x_vfop_qsetup(struct bnx2x *bp, struct bnx2x_virtf *vf)
924 {
925 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
926 int qid = vfop->args.qctor.qid;
927 enum bnx2x_vfop_qsetup_state state = vfop->state;
928 struct bnx2x_vfop_cmd cmd = {
929 .done = bnx2x_vfop_qsetup,
930 .block = false,
931 };
932
933 if (vfop->rc < 0)
934 goto op_err;
935
936 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
937
938 switch (state) {
939 case BNX2X_VFOP_QSETUP_CTOR:
940 /* init the queue ctor command */
941 vfop->state = BNX2X_VFOP_QSETUP_VLAN0;
942 vfop->rc = bnx2x_vfop_qctor_cmd(bp, vf, &cmd, qid);
943 if (vfop->rc)
944 goto op_err;
945 return;
946
947 case BNX2X_VFOP_QSETUP_VLAN0:
948 /* skip if non-leading or FPGA/EMU*/
949 if (qid)
950 goto op_done;
951
952 /* init the queue set-vlan command (for vlan 0) */
953 vfop->state = BNX2X_VFOP_QSETUP_DONE;
954 vfop->rc = bnx2x_vfop_vlan_set_cmd(bp, vf, &cmd, qid, 0, true);
955 if (vfop->rc)
956 goto op_err;
957 return;
958 op_err:
959 BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, vfop->rc);
960 op_done:
961 case BNX2X_VFOP_QSETUP_DONE:
962 vf->cfg_flags |= VF_CFG_VLAN;
963 smp_mb__before_clear_bit();
964 set_bit(BNX2X_SP_RTNL_HYPERVISOR_VLAN,
965 &bp->sp_rtnl_state);
966 smp_mb__after_clear_bit();
967 schedule_delayed_work(&bp->sp_rtnl_task, 0);
968 bnx2x_vfop_end(bp, vf, vfop);
969 return;
970 default:
971 bnx2x_vfop_default(state);
972 }
973 }
974
975 int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp,
976 struct bnx2x_virtf *vf,
977 struct bnx2x_vfop_cmd *cmd,
978 int qid)
979 {
980 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
981
982 if (vfop) {
983 vfop->args.qctor.qid = qid;
984
985 bnx2x_vfop_opset(BNX2X_VFOP_QSETUP_CTOR,
986 bnx2x_vfop_qsetup, cmd->done);
987 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qsetup,
988 cmd->block);
989 }
990 return -ENOMEM;
991 }
992
993 /* VFOP queue FLR handling (clear vlans, clear macs, queue destructor) */
994 static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf)
995 {
996 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
997 int qid = vfop->args.qx.qid;
998 enum bnx2x_vfop_qflr_state state = vfop->state;
999 struct bnx2x_queue_state_params *qstate;
1000 struct bnx2x_vfop_cmd cmd;
1001
1002 bnx2x_vfop_reset_wq(vf);
1003
1004 if (vfop->rc < 0)
1005 goto op_err;
1006
1007 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %d\n", vf->abs_vfid, state);
1008
1009 cmd.done = bnx2x_vfop_qflr;
1010 cmd.block = false;
1011
1012 switch (state) {
1013 case BNX2X_VFOP_QFLR_CLR_VLAN:
1014 /* vlan-clear-all: driver-only, don't consume credit */
1015 vfop->state = BNX2X_VFOP_QFLR_CLR_MAC;
1016 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, true);
1017 if (vfop->rc)
1018 goto op_err;
1019 return;
1020
1021 case BNX2X_VFOP_QFLR_CLR_MAC:
1022 /* mac-clear-all: driver only consume credit */
1023 vfop->state = BNX2X_VFOP_QFLR_TERMINATE;
1024 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, true);
1025 DP(BNX2X_MSG_IOV,
1026 "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d",
1027 vf->abs_vfid, vfop->rc);
1028 if (vfop->rc)
1029 goto op_err;
1030 return;
1031
1032 case BNX2X_VFOP_QFLR_TERMINATE:
1033 qstate = &vfop->op_p->qctor.qstate;
1034 memset(qstate , 0, sizeof(*qstate));
1035 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
1036 vfop->state = BNX2X_VFOP_QFLR_DONE;
1037
1038 DP(BNX2X_MSG_IOV, "VF[%d] qstate during flr was %d\n",
1039 vf->abs_vfid, qstate->q_obj->state);
1040
1041 if (qstate->q_obj->state != BNX2X_Q_STATE_RESET) {
1042 qstate->q_obj->state = BNX2X_Q_STATE_STOPPED;
1043 qstate->cmd = BNX2X_Q_CMD_TERMINATE;
1044 vfop->rc = bnx2x_queue_state_change(bp, qstate);
1045 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_VERIFY_PEND);
1046 } else {
1047 goto op_done;
1048 }
1049
1050 op_err:
1051 BNX2X_ERR("QFLR[%d:%d] error: rc %d\n",
1052 vf->abs_vfid, qid, vfop->rc);
1053 op_done:
1054 case BNX2X_VFOP_QFLR_DONE:
1055 bnx2x_vfop_end(bp, vf, vfop);
1056 return;
1057 default:
1058 bnx2x_vfop_default(state);
1059 }
1060 op_pending:
1061 return;
1062 }
1063
1064 static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp,
1065 struct bnx2x_virtf *vf,
1066 struct bnx2x_vfop_cmd *cmd,
1067 int qid)
1068 {
1069 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1070
1071 if (vfop) {
1072 vfop->args.qx.qid = qid;
1073 bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN,
1074 bnx2x_vfop_qflr, cmd->done);
1075 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr,
1076 cmd->block);
1077 }
1078 return -ENOMEM;
1079 }
1080
1081 /* VFOP multi-casts */
1082 static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf)
1083 {
1084 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1085 struct bnx2x_mcast_ramrod_params *mcast = &vfop->op_p->mcast;
1086 struct bnx2x_raw_obj *raw = &mcast->mcast_obj->raw;
1087 struct bnx2x_vfop_args_mcast *args = &vfop->args.mc_list;
1088 enum bnx2x_vfop_mcast_state state = vfop->state;
1089 int i;
1090
1091 bnx2x_vfop_reset_wq(vf);
1092
1093 if (vfop->rc < 0)
1094 goto op_err;
1095
1096 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1097
1098 switch (state) {
1099 case BNX2X_VFOP_MCAST_DEL:
1100 /* clear existing mcasts */
1101 vfop->state = BNX2X_VFOP_MCAST_ADD;
1102 vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL);
1103 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1104
1105 case BNX2X_VFOP_MCAST_ADD:
1106 if (raw->check_pending(raw))
1107 goto op_pending;
1108
1109 if (args->mc_num) {
1110 /* update mcast list on the ramrod params */
1111 INIT_LIST_HEAD(&mcast->mcast_list);
1112 for (i = 0; i < args->mc_num; i++)
1113 list_add_tail(&(args->mc[i].link),
1114 &mcast->mcast_list);
1115 /* add new mcasts */
1116 vfop->state = BNX2X_VFOP_MCAST_CHK_DONE;
1117 vfop->rc = bnx2x_config_mcast(bp, mcast,
1118 BNX2X_MCAST_CMD_ADD);
1119 }
1120 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1121
1122 case BNX2X_VFOP_MCAST_CHK_DONE:
1123 vfop->rc = raw->check_pending(raw) ? 1 : 0;
1124 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1125 default:
1126 bnx2x_vfop_default(state);
1127 }
1128 op_err:
1129 BNX2X_ERR("MCAST CONFIG error: rc %d\n", vfop->rc);
1130 op_done:
1131 kfree(args->mc);
1132 bnx2x_vfop_end(bp, vf, vfop);
1133 op_pending:
1134 return;
1135 }
1136
1137 int bnx2x_vfop_mcast_cmd(struct bnx2x *bp,
1138 struct bnx2x_virtf *vf,
1139 struct bnx2x_vfop_cmd *cmd,
1140 bnx2x_mac_addr_t *mcasts,
1141 int mcast_num, bool drv_only)
1142 {
1143 struct bnx2x_vfop *vfop = NULL;
1144 size_t mc_sz = mcast_num * sizeof(struct bnx2x_mcast_list_elem);
1145 struct bnx2x_mcast_list_elem *mc = mc_sz ? kzalloc(mc_sz, GFP_KERNEL) :
1146 NULL;
1147
1148 if (!mc_sz || mc) {
1149 vfop = bnx2x_vfop_add(bp, vf);
1150 if (vfop) {
1151 int i;
1152 struct bnx2x_mcast_ramrod_params *ramrod =
1153 &vf->op_params.mcast;
1154
1155 /* set ramrod params */
1156 memset(ramrod, 0, sizeof(*ramrod));
1157 ramrod->mcast_obj = &vf->mcast_obj;
1158 if (drv_only)
1159 set_bit(RAMROD_DRV_CLR_ONLY,
1160 &ramrod->ramrod_flags);
1161
1162 /* copy mcasts pointers */
1163 vfop->args.mc_list.mc_num = mcast_num;
1164 vfop->args.mc_list.mc = mc;
1165 for (i = 0; i < mcast_num; i++)
1166 mc[i].mac = mcasts[i];
1167
1168 bnx2x_vfop_opset(BNX2X_VFOP_MCAST_DEL,
1169 bnx2x_vfop_mcast, cmd->done);
1170 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mcast,
1171 cmd->block);
1172 } else {
1173 kfree(mc);
1174 }
1175 }
1176 return -ENOMEM;
1177 }
1178
1179 /* VFOP rx-mode */
1180 static void bnx2x_vfop_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf)
1181 {
1182 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1183 struct bnx2x_rx_mode_ramrod_params *ramrod = &vfop->op_p->rx_mode;
1184 enum bnx2x_vfop_rxmode_state state = vfop->state;
1185
1186 bnx2x_vfop_reset_wq(vf);
1187
1188 if (vfop->rc < 0)
1189 goto op_err;
1190
1191 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1192
1193 switch (state) {
1194 case BNX2X_VFOP_RXMODE_CONFIG:
1195 /* next state */
1196 vfop->state = BNX2X_VFOP_RXMODE_DONE;
1197
1198 vfop->rc = bnx2x_config_rx_mode(bp, ramrod);
1199 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1200 op_err:
1201 BNX2X_ERR("RXMODE error: rc %d\n", vfop->rc);
1202 op_done:
1203 case BNX2X_VFOP_RXMODE_DONE:
1204 bnx2x_vfop_end(bp, vf, vfop);
1205 return;
1206 default:
1207 bnx2x_vfop_default(state);
1208 }
1209 op_pending:
1210 return;
1211 }
1212
1213 int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp,
1214 struct bnx2x_virtf *vf,
1215 struct bnx2x_vfop_cmd *cmd,
1216 int qid, unsigned long accept_flags)
1217 {
1218 struct bnx2x_vf_queue *vfq = vfq_get(vf, qid);
1219 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1220
1221 if (vfop) {
1222 struct bnx2x_rx_mode_ramrod_params *ramrod =
1223 &vf->op_params.rx_mode;
1224
1225 memset(ramrod, 0, sizeof(*ramrod));
1226
1227 /* Prepare ramrod parameters */
1228 ramrod->cid = vfq->cid;
1229 ramrod->cl_id = vfq_cl_id(vf, vfq);
1230 ramrod->rx_mode_obj = &bp->rx_mode_obj;
1231 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid);
1232
1233 ramrod->rx_accept_flags = accept_flags;
1234 ramrod->tx_accept_flags = accept_flags;
1235 ramrod->pstate = &vf->filter_state;
1236 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING;
1237
1238 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
1239 set_bit(RAMROD_RX, &ramrod->ramrod_flags);
1240 set_bit(RAMROD_TX, &ramrod->ramrod_flags);
1241
1242 ramrod->rdata =
1243 bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2);
1244 ramrod->rdata_mapping =
1245 bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2);
1246
1247 bnx2x_vfop_opset(BNX2X_VFOP_RXMODE_CONFIG,
1248 bnx2x_vfop_rxmode, cmd->done);
1249 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rxmode,
1250 cmd->block);
1251 }
1252 return -ENOMEM;
1253 }
1254
1255 /* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs,
1256 * queue destructor)
1257 */
1258 static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf)
1259 {
1260 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1261 int qid = vfop->args.qx.qid;
1262 enum bnx2x_vfop_qteardown_state state = vfop->state;
1263 struct bnx2x_vfop_cmd cmd;
1264
1265 if (vfop->rc < 0)
1266 goto op_err;
1267
1268 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1269
1270 cmd.done = bnx2x_vfop_qdown;
1271 cmd.block = false;
1272
1273 switch (state) {
1274 case BNX2X_VFOP_QTEARDOWN_RXMODE:
1275 /* Drop all */
1276 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN;
1277 vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0);
1278 if (vfop->rc)
1279 goto op_err;
1280 return;
1281
1282 case BNX2X_VFOP_QTEARDOWN_CLR_VLAN:
1283 /* vlan-clear-all: don't consume credit */
1284 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC;
1285 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false);
1286 if (vfop->rc)
1287 goto op_err;
1288 return;
1289
1290 case BNX2X_VFOP_QTEARDOWN_CLR_MAC:
1291 /* mac-clear-all: consume credit */
1292 vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
1293 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false);
1294 if (vfop->rc)
1295 goto op_err;
1296 return;
1297
1298 case BNX2X_VFOP_QTEARDOWN_QDTOR:
1299 /* run the queue destruction flow */
1300 DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n");
1301 vfop->state = BNX2X_VFOP_QTEARDOWN_DONE;
1302 DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n");
1303 vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid);
1304 DP(BNX2X_MSG_IOV, "returned from cmd\n");
1305 if (vfop->rc)
1306 goto op_err;
1307 return;
1308 op_err:
1309 BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n",
1310 vf->abs_vfid, qid, vfop->rc);
1311
1312 case BNX2X_VFOP_QTEARDOWN_DONE:
1313 bnx2x_vfop_end(bp, vf, vfop);
1314 return;
1315 default:
1316 bnx2x_vfop_default(state);
1317 }
1318 }
1319
1320 int bnx2x_vfop_qdown_cmd(struct bnx2x *bp,
1321 struct bnx2x_virtf *vf,
1322 struct bnx2x_vfop_cmd *cmd,
1323 int qid)
1324 {
1325 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1326
1327 if (vfop) {
1328 vfop->args.qx.qid = qid;
1329 bnx2x_vfop_opset(BNX2X_VFOP_QTEARDOWN_RXMODE,
1330 bnx2x_vfop_qdown, cmd->done);
1331 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown,
1332 cmd->block);
1333 }
1334
1335 return -ENOMEM;
1336 }
1337
1338 /* VF enable primitives
1339 * when pretend is required the caller is responsible
1340 * for calling pretend prior to calling these routines
1341 */
1342
1343 /* internal vf enable - until vf is enabled internally all transactions
1344 * are blocked. this routine should always be called last with pretend.
1345 */
1346 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
1347 {
1348 REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0);
1349 }
1350
1351 /* clears vf error in all semi blocks */
1352 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid)
1353 {
1354 REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid);
1355 REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid);
1356 REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid);
1357 REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid);
1358 }
1359
1360 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid)
1361 {
1362 u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5;
1363 u32 was_err_reg = 0;
1364
1365 switch (was_err_group) {
1366 case 0:
1367 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR;
1368 break;
1369 case 1:
1370 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR;
1371 break;
1372 case 2:
1373 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR;
1374 break;
1375 case 3:
1376 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR;
1377 break;
1378 }
1379 REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f));
1380 }
1381
1382 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
1383 {
1384 int i;
1385 u32 val;
1386
1387 /* Set VF masks and configuration - pretend */
1388 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1389
1390 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
1391 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
1392 REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
1393 REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
1394 REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
1395 REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
1396
1397 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
1398 val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN);
1399 if (vf->cfg_flags & VF_CFG_INT_SIMD)
1400 val |= IGU_VF_CONF_SINGLE_ISR_EN;
1401 val &= ~IGU_VF_CONF_PARENT_MASK;
1402 val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */
1403 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
1404
1405 DP(BNX2X_MSG_IOV,
1406 "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n",
1407 vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION));
1408
1409 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1410
1411 /* iterate over all queues, clear sb consumer */
1412 for (i = 0; i < vf_sb_count(vf); i++) {
1413 u8 igu_sb_id = vf_igu_sb(vf, i);
1414
1415 /* zero prod memory */
1416 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0);
1417
1418 /* clear sb state machine */
1419 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id,
1420 false /* VF */);
1421
1422 /* disable + update */
1423 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0,
1424 IGU_INT_DISABLE, 1);
1425 }
1426 }
1427
1428 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
1429 {
1430 /* set the VF-PF association in the FW */
1431 storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
1432 storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
1433
1434 /* clear vf errors*/
1435 bnx2x_vf_semi_clear_err(bp, abs_vfid);
1436 bnx2x_vf_pglue_clear_err(bp, abs_vfid);
1437
1438 /* internal vf-enable - pretend */
1439 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid));
1440 DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid);
1441 bnx2x_vf_enable_internal(bp, true);
1442 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1443 }
1444
1445 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)
1446 {
1447 /* Reset vf in IGU interrupts are still disabled */
1448 bnx2x_vf_igu_reset(bp, vf);
1449
1450 /* pretend to enable the vf with the PBF */
1451 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1452 REG_WR(bp, PBF_REG_DISABLE_VF, 0);
1453 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1454 }
1455
1456 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
1457 {
1458 struct pci_dev *dev;
1459 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
1460
1461 if (!vf)
1462 goto unknown_dev;
1463
1464 dev = pci_get_bus_and_slot(vf->bus, vf->devfn);
1465 if (dev)
1466 return bnx2x_is_pcie_pending(dev);
1467
1468 unknown_dev:
1469 return false;
1470 }
1471
1472 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
1473 {
1474 /* Wait 100ms */
1475 msleep(100);
1476
1477 /* Verify no pending pci transactions */
1478 if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
1479 BNX2X_ERR("PCIE Transactions still pending\n");
1480
1481 return 0;
1482 }
1483
1484 /* must be called after the number of PF queues and the number of VFs are
1485 * both known
1486 */
1487 static void
1488 bnx2x_iov_static_resc(struct bnx2x *bp, struct vf_pf_resc_request *resc)
1489 {
1490 u16 vlan_count = 0;
1491
1492 /* will be set only during VF-ACQUIRE */
1493 resc->num_rxqs = 0;
1494 resc->num_txqs = 0;
1495
1496 /* no credit calculcis for macs (just yet) */
1497 resc->num_mac_filters = 1;
1498
1499 /* divvy up vlan rules */
1500 vlan_count = bp->vlans_pool.check(&bp->vlans_pool);
1501 vlan_count = 1 << ilog2(vlan_count);
1502 resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp);
1503
1504 /* no real limitation */
1505 resc->num_mc_filters = 0;
1506
1507 /* num_sbs already set */
1508 }
1509
1510 /* FLR routines: */
1511 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1512 {
1513 /* reset the state variables */
1514 bnx2x_iov_static_resc(bp, &vf->alloc_resc);
1515 vf->state = VF_FREE;
1516 }
1517
1518 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf)
1519 {
1520 u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
1521
1522 /* DQ usage counter */
1523 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1524 bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT,
1525 "DQ VF usage counter timed out",
1526 poll_cnt);
1527 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1528
1529 /* FW cleanup command - poll for the results */
1530 if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid),
1531 poll_cnt))
1532 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid);
1533
1534 /* verify TX hw is flushed */
1535 bnx2x_tx_hw_flushed(bp, poll_cnt);
1536 }
1537
1538 static void bnx2x_vfop_flr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1539 {
1540 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1541 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
1542 enum bnx2x_vfop_flr_state state = vfop->state;
1543 struct bnx2x_vfop_cmd cmd = {
1544 .done = bnx2x_vfop_flr,
1545 .block = false,
1546 };
1547
1548 if (vfop->rc < 0)
1549 goto op_err;
1550
1551 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1552
1553 switch (state) {
1554 case BNX2X_VFOP_FLR_QUEUES:
1555 /* the cleanup operations are valid if and only if the VF
1556 * was first acquired.
1557 */
1558 if (++(qx->qid) < vf_rxq_count(vf)) {
1559 vfop->rc = bnx2x_vfop_qflr_cmd(bp, vf, &cmd,
1560 qx->qid);
1561 if (vfop->rc)
1562 goto op_err;
1563 return;
1564 }
1565 /* remove multicasts */
1566 vfop->state = BNX2X_VFOP_FLR_HW;
1567 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL,
1568 0, true);
1569 if (vfop->rc)
1570 goto op_err;
1571 return;
1572 case BNX2X_VFOP_FLR_HW:
1573
1574 /* dispatch final cleanup and wait for HW queues to flush */
1575 bnx2x_vf_flr_clnup_hw(bp, vf);
1576
1577 /* release VF resources */
1578 bnx2x_vf_free_resc(bp, vf);
1579
1580 /* re-open the mailbox */
1581 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
1582
1583 goto op_done;
1584 default:
1585 bnx2x_vfop_default(state);
1586 }
1587 op_err:
1588 BNX2X_ERR("VF[%d] FLR error: rc %d\n", vf->abs_vfid, vfop->rc);
1589 op_done:
1590 vf->flr_clnup_stage = VF_FLR_ACK;
1591 bnx2x_vfop_end(bp, vf, vfop);
1592 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1593 }
1594
1595 static int bnx2x_vfop_flr_cmd(struct bnx2x *bp,
1596 struct bnx2x_virtf *vf,
1597 vfop_handler_t done)
1598 {
1599 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1600 if (vfop) {
1601 vfop->args.qx.qid = -1; /* loop */
1602 bnx2x_vfop_opset(BNX2X_VFOP_FLR_QUEUES,
1603 bnx2x_vfop_flr, done);
1604 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_flr, false);
1605 }
1606 return -ENOMEM;
1607 }
1608
1609 static void bnx2x_vf_flr_clnup(struct bnx2x *bp, struct bnx2x_virtf *prev_vf)
1610 {
1611 int i = prev_vf ? prev_vf->index + 1 : 0;
1612 struct bnx2x_virtf *vf;
1613
1614 /* find next VF to cleanup */
1615 next_vf_to_clean:
1616 for (;
1617 i < BNX2X_NR_VIRTFN(bp) &&
1618 (bnx2x_vf(bp, i, state) != VF_RESET ||
1619 bnx2x_vf(bp, i, flr_clnup_stage) != VF_FLR_CLN);
1620 i++)
1621 ;
1622
1623 DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. num of vfs: %d\n", i,
1624 BNX2X_NR_VIRTFN(bp));
1625
1626 if (i < BNX2X_NR_VIRTFN(bp)) {
1627 vf = BP_VF(bp, i);
1628
1629 /* lock the vf pf channel */
1630 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1631
1632 /* invoke the VF FLR SM */
1633 if (bnx2x_vfop_flr_cmd(bp, vf, bnx2x_vf_flr_clnup)) {
1634 BNX2X_ERR("VF[%d]: FLR cleanup failed -ENOMEM\n",
1635 vf->abs_vfid);
1636
1637 /* mark the VF to be ACKED and continue */
1638 vf->flr_clnup_stage = VF_FLR_ACK;
1639 goto next_vf_to_clean;
1640 }
1641 return;
1642 }
1643
1644 /* we are done, update vf records */
1645 for_each_vf(bp, i) {
1646 vf = BP_VF(bp, i);
1647
1648 if (vf->flr_clnup_stage != VF_FLR_ACK)
1649 continue;
1650
1651 vf->flr_clnup_stage = VF_FLR_EPILOG;
1652 }
1653
1654 /* Acknowledge the handled VFs.
1655 * we are acknowledge all the vfs which an flr was requested for, even
1656 * if amongst them there are such that we never opened, since the mcp
1657 * will interrupt us immediately again if we only ack some of the bits,
1658 * resulting in an endless loop. This can happen for example in KVM
1659 * where an 'all ones' flr request is sometimes given by hyper visor
1660 */
1661 DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n",
1662 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1663 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1664 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i],
1665 bp->vfdb->flrd_vfs[i]);
1666
1667 bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0);
1668
1669 /* clear the acked bits - better yet if the MCP implemented
1670 * write to clear semantics
1671 */
1672 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1673 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0);
1674 }
1675
1676 void bnx2x_vf_handle_flr_event(struct bnx2x *bp)
1677 {
1678 int i;
1679
1680 /* Read FLR'd VFs */
1681 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1682 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]);
1683
1684 DP(BNX2X_MSG_MCP,
1685 "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n",
1686 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1687
1688 for_each_vf(bp, i) {
1689 struct bnx2x_virtf *vf = BP_VF(bp, i);
1690 u32 reset = 0;
1691
1692 if (vf->abs_vfid < 32)
1693 reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid);
1694 else
1695 reset = bp->vfdb->flrd_vfs[1] &
1696 (1 << (vf->abs_vfid - 32));
1697
1698 if (reset) {
1699 /* set as reset and ready for cleanup */
1700 vf->state = VF_RESET;
1701 vf->flr_clnup_stage = VF_FLR_CLN;
1702
1703 DP(BNX2X_MSG_IOV,
1704 "Initiating Final cleanup for VF %d\n",
1705 vf->abs_vfid);
1706 }
1707 }
1708
1709 /* do the FLR cleanup for all marked VFs*/
1710 bnx2x_vf_flr_clnup(bp, NULL);
1711 }
1712
1713 /* IOV global initialization routines */
1714 void bnx2x_iov_init_dq(struct bnx2x *bp)
1715 {
1716 if (!IS_SRIOV(bp))
1717 return;
1718
1719 /* Set the DQ such that the CID reflect the abs_vfid */
1720 REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0);
1721 REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS));
1722
1723 /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to
1724 * the PF L2 queues
1725 */
1726 REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID);
1727
1728 /* The VF window size is the log2 of the max number of CIDs per VF */
1729 REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND);
1730
1731 /* The VF doorbell size 0 - *B, 4 - 128B. We set it here to match
1732 * the Pf doorbell size although the 2 are independent.
1733 */
1734 REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST,
1735 BNX2X_DB_SHIFT - BNX2X_DB_MIN_SHIFT);
1736
1737 /* No security checks for now -
1738 * configure single rule (out of 16) mask = 0x1, value = 0x0,
1739 * CID range 0 - 0x1ffff
1740 */
1741 REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1);
1742 REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0);
1743 REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0);
1744 REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff);
1745
1746 /* set the number of VF alllowed doorbells to the full DQ range */
1747 REG_WR(bp, DORQ_REG_VF_NORM_MAX_CID_COUNT, 0x20000);
1748
1749 /* set the VF doorbell threshold */
1750 REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 4);
1751 }
1752
1753 void bnx2x_iov_init_dmae(struct bnx2x *bp)
1754 {
1755 DP(BNX2X_MSG_IOV, "SRIOV is %s\n", IS_SRIOV(bp) ? "ON" : "OFF");
1756 if (!IS_SRIOV(bp))
1757 return;
1758
1759 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
1760 }
1761
1762 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
1763 {
1764 struct pci_dev *dev = bp->pdev;
1765 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1766
1767 return dev->bus->number + ((dev->devfn + iov->offset +
1768 iov->stride * vfid) >> 8);
1769 }
1770
1771 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid)
1772 {
1773 struct pci_dev *dev = bp->pdev;
1774 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1775
1776 return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff;
1777 }
1778
1779 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf)
1780 {
1781 int i, n;
1782 struct pci_dev *dev = bp->pdev;
1783 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1784
1785 for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) {
1786 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i);
1787 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i);
1788
1789 size /= iov->total;
1790 vf->bars[n].bar = start + size * vf->abs_vfid;
1791 vf->bars[n].size = size;
1792 }
1793 }
1794
1795 static int bnx2x_ari_enabled(struct pci_dev *dev)
1796 {
1797 return dev->bus->self && dev->bus->self->ari_enabled;
1798 }
1799
1800 static void
1801 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
1802 {
1803 int sb_id;
1804 u32 val;
1805 u8 fid;
1806
1807 /* IGU in normal mode - read CAM */
1808 for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) {
1809 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4);
1810 if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
1811 continue;
1812 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
1813 if (!(fid & IGU_FID_ENCODE_IS_PF))
1814 bnx2x_vf_set_igu_info(bp, sb_id,
1815 (fid & IGU_FID_VF_NUM_MASK));
1816
1817 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
1818 ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"),
1819 ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) :
1820 (fid & IGU_FID_VF_NUM_MASK)), sb_id,
1821 GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR));
1822 }
1823 }
1824
1825 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp)
1826 {
1827 if (bp->vfdb) {
1828 kfree(bp->vfdb->vfqs);
1829 kfree(bp->vfdb->vfs);
1830 kfree(bp->vfdb);
1831 }
1832 bp->vfdb = NULL;
1833 }
1834
1835 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1836 {
1837 int pos;
1838 struct pci_dev *dev = bp->pdev;
1839
1840 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
1841 if (!pos) {
1842 BNX2X_ERR("failed to find SRIOV capability in device\n");
1843 return -ENODEV;
1844 }
1845
1846 iov->pos = pos;
1847 DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos);
1848 pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
1849 pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total);
1850 pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial);
1851 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
1852 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
1853 pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
1854 pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
1855 pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
1856
1857 return 0;
1858 }
1859
1860 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1861 {
1862 u32 val;
1863
1864 /* read the SRIOV capability structure
1865 * The fields can be read via configuration read or
1866 * directly from the device (starting at offset PCICFG_OFFSET)
1867 */
1868 if (bnx2x_sriov_pci_cfg_info(bp, iov))
1869 return -ENODEV;
1870
1871 /* get the number of SRIOV bars */
1872 iov->nres = 0;
1873
1874 /* read the first_vfid */
1875 val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF);
1876 iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK)
1877 * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp));
1878
1879 DP(BNX2X_MSG_IOV,
1880 "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",
1881 BP_FUNC(bp),
1882 iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total,
1883 iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
1884
1885 return 0;
1886 }
1887
1888 static u8 bnx2x_iov_get_max_queue_count(struct bnx2x *bp)
1889 {
1890 int i;
1891 u8 queue_count = 0;
1892
1893 if (IS_SRIOV(bp))
1894 for_each_vf(bp, i)
1895 queue_count += bnx2x_vf(bp, i, alloc_resc.num_sbs);
1896
1897 return queue_count;
1898 }
1899
1900 /* must be called after PF bars are mapped */
1901 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
1902 int num_vfs_param)
1903 {
1904 int err, i, qcount;
1905 struct bnx2x_sriov *iov;
1906 struct pci_dev *dev = bp->pdev;
1907
1908 bp->vfdb = NULL;
1909
1910 /* verify is pf */
1911 if (IS_VF(bp))
1912 return 0;
1913
1914 /* verify sriov capability is present in configuration space */
1915 if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV))
1916 return 0;
1917
1918 /* verify chip revision */
1919 if (CHIP_IS_E1x(bp))
1920 return 0;
1921
1922 /* check if SRIOV support is turned off */
1923 if (!num_vfs_param)
1924 return 0;
1925
1926 /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */
1927 if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) {
1928 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n",
1929 BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID);
1930 return 0;
1931 }
1932
1933 /* SRIOV can be enabled only with MSIX */
1934 if (int_mode_param == BNX2X_INT_MODE_MSI ||
1935 int_mode_param == BNX2X_INT_MODE_INTX) {
1936 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n");
1937 return 0;
1938 }
1939
1940 err = -EIO;
1941 /* verify ari is enabled */
1942 if (!bnx2x_ari_enabled(bp->pdev)) {
1943 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n");
1944 return 0;
1945 }
1946
1947 /* verify igu is in normal mode */
1948 if (CHIP_INT_MODE_IS_BC(bp)) {
1949 BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n");
1950 return 0;
1951 }
1952
1953 /* allocate the vfs database */
1954 bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL);
1955 if (!bp->vfdb) {
1956 BNX2X_ERR("failed to allocate vf database\n");
1957 err = -ENOMEM;
1958 goto failed;
1959 }
1960
1961 /* get the sriov info - Linux already collected all the pertinent
1962 * information, however the sriov structure is for the private use
1963 * of the pci module. Also we want this information regardless
1964 * of the hyper-visor.
1965 */
1966 iov = &(bp->vfdb->sriov);
1967 err = bnx2x_sriov_info(bp, iov);
1968 if (err)
1969 goto failed;
1970
1971 /* SR-IOV capability was enabled but there are no VFs*/
1972 if (iov->total == 0)
1973 goto failed;
1974
1975 iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param);
1976
1977 DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n",
1978 num_vfs_param, iov->nr_virtfn);
1979
1980 /* allocate the vf array */
1981 bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) *
1982 BNX2X_NR_VIRTFN(bp), GFP_KERNEL);
1983 if (!bp->vfdb->vfs) {
1984 BNX2X_ERR("failed to allocate vf array\n");
1985 err = -ENOMEM;
1986 goto failed;
1987 }
1988
1989 /* Initial VF init - index and abs_vfid - nr_virtfn must be set */
1990 for_each_vf(bp, i) {
1991 bnx2x_vf(bp, i, index) = i;
1992 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i;
1993 bnx2x_vf(bp, i, state) = VF_FREE;
1994 INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head));
1995 mutex_init(&bnx2x_vf(bp, i, op_mutex));
1996 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE;
1997 }
1998
1999 /* re-read the IGU CAM for VFs - index and abs_vfid must be set */
2000 bnx2x_get_vf_igu_cam_info(bp);
2001
2002 /* get the total queue count and allocate the global queue arrays */
2003 qcount = bnx2x_iov_get_max_queue_count(bp);
2004
2005 /* allocate the queue arrays for all VFs */
2006 bp->vfdb->vfqs = kzalloc(qcount * sizeof(struct bnx2x_vf_queue),
2007 GFP_KERNEL);
2008 if (!bp->vfdb->vfqs) {
2009 BNX2X_ERR("failed to allocate vf queue array\n");
2010 err = -ENOMEM;
2011 goto failed;
2012 }
2013
2014 return 0;
2015 failed:
2016 DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
2017 __bnx2x_iov_free_vfdb(bp);
2018 return err;
2019 }
2020
2021 void bnx2x_iov_remove_one(struct bnx2x *bp)
2022 {
2023 /* if SRIOV is not enabled there's nothing to do */
2024 if (!IS_SRIOV(bp))
2025 return;
2026
2027 DP(BNX2X_MSG_IOV, "about to call disable sriov\n");
2028 pci_disable_sriov(bp->pdev);
2029 DP(BNX2X_MSG_IOV, "sriov disabled\n");
2030
2031 /* free vf database */
2032 __bnx2x_iov_free_vfdb(bp);
2033 }
2034
2035 void bnx2x_iov_free_mem(struct bnx2x *bp)
2036 {
2037 int i;
2038
2039 if (!IS_SRIOV(bp))
2040 return;
2041
2042 /* free vfs hw contexts */
2043 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2044 struct hw_dma *cxt = &bp->vfdb->context[i];
2045 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size);
2046 }
2047
2048 BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr,
2049 BP_VFDB(bp)->sp_dma.mapping,
2050 BP_VFDB(bp)->sp_dma.size);
2051
2052 BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr,
2053 BP_VF_MBX_DMA(bp)->mapping,
2054 BP_VF_MBX_DMA(bp)->size);
2055
2056 BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr,
2057 BP_VF_BULLETIN_DMA(bp)->mapping,
2058 BP_VF_BULLETIN_DMA(bp)->size);
2059 }
2060
2061 int bnx2x_iov_alloc_mem(struct bnx2x *bp)
2062 {
2063 size_t tot_size;
2064 int i, rc = 0;
2065
2066 if (!IS_SRIOV(bp))
2067 return rc;
2068
2069 /* allocate vfs hw contexts */
2070 tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) *
2071 BNX2X_CIDS_PER_VF * sizeof(union cdu_context);
2072
2073 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2074 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i);
2075 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ);
2076
2077 if (cxt->size) {
2078 BNX2X_PCI_ALLOC(cxt->addr, &cxt->mapping, cxt->size);
2079 } else {
2080 cxt->addr = NULL;
2081 cxt->mapping = 0;
2082 }
2083 tot_size -= cxt->size;
2084 }
2085
2086 /* allocate vfs ramrods dma memory - client_init and set_mac */
2087 tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp);
2088 BNX2X_PCI_ALLOC(BP_VFDB(bp)->sp_dma.addr, &BP_VFDB(bp)->sp_dma.mapping,
2089 tot_size);
2090 BP_VFDB(bp)->sp_dma.size = tot_size;
2091
2092 /* allocate mailboxes */
2093 tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE;
2094 BNX2X_PCI_ALLOC(BP_VF_MBX_DMA(bp)->addr, &BP_VF_MBX_DMA(bp)->mapping,
2095 tot_size);
2096 BP_VF_MBX_DMA(bp)->size = tot_size;
2097
2098 /* allocate local bulletin boards */
2099 tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE;
2100 BNX2X_PCI_ALLOC(BP_VF_BULLETIN_DMA(bp)->addr,
2101 &BP_VF_BULLETIN_DMA(bp)->mapping, tot_size);
2102 BP_VF_BULLETIN_DMA(bp)->size = tot_size;
2103
2104 return 0;
2105
2106 alloc_mem_err:
2107 return -ENOMEM;
2108 }
2109
2110 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
2111 struct bnx2x_vf_queue *q)
2112 {
2113 u8 cl_id = vfq_cl_id(vf, q);
2114 u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
2115 unsigned long q_type = 0;
2116
2117 set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
2118 set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
2119
2120 /* Queue State object */
2121 bnx2x_init_queue_obj(bp, &q->sp_obj,
2122 cl_id, &q->cid, 1, func_id,
2123 bnx2x_vf_sp(bp, vf, q_data),
2124 bnx2x_vf_sp_map(bp, vf, q_data),
2125 q_type);
2126
2127 DP(BNX2X_MSG_IOV,
2128 "initialized vf %d's queue object. func id set to %d\n",
2129 vf->abs_vfid, q->sp_obj.func_id);
2130
2131 /* mac/vlan objects are per queue, but only those
2132 * that belong to the leading queue are initialized
2133 */
2134 if (vfq_is_leading(q)) {
2135 /* mac */
2136 bnx2x_init_mac_obj(bp, &q->mac_obj,
2137 cl_id, q->cid, func_id,
2138 bnx2x_vf_sp(bp, vf, mac_rdata),
2139 bnx2x_vf_sp_map(bp, vf, mac_rdata),
2140 BNX2X_FILTER_MAC_PENDING,
2141 &vf->filter_state,
2142 BNX2X_OBJ_TYPE_RX_TX,
2143 &bp->macs_pool);
2144 /* vlan */
2145 bnx2x_init_vlan_obj(bp, &q->vlan_obj,
2146 cl_id, q->cid, func_id,
2147 bnx2x_vf_sp(bp, vf, vlan_rdata),
2148 bnx2x_vf_sp_map(bp, vf, vlan_rdata),
2149 BNX2X_FILTER_VLAN_PENDING,
2150 &vf->filter_state,
2151 BNX2X_OBJ_TYPE_RX_TX,
2152 &bp->vlans_pool);
2153
2154 /* mcast */
2155 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, cl_id,
2156 q->cid, func_id, func_id,
2157 bnx2x_vf_sp(bp, vf, mcast_rdata),
2158 bnx2x_vf_sp_map(bp, vf, mcast_rdata),
2159 BNX2X_FILTER_MCAST_PENDING,
2160 &vf->filter_state,
2161 BNX2X_OBJ_TYPE_RX_TX);
2162
2163 vf->leading_rss = cl_id;
2164 }
2165 }
2166
2167 /* called by bnx2x_nic_load */
2168 int bnx2x_iov_nic_init(struct bnx2x *bp)
2169 {
2170 int vfid, qcount, i;
2171
2172 if (!IS_SRIOV(bp)) {
2173 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n");
2174 return 0;
2175 }
2176
2177 DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn);
2178
2179 /* initialize vf database */
2180 for_each_vf(bp, vfid) {
2181 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2182
2183 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) *
2184 BNX2X_CIDS_PER_VF;
2185
2186 union cdu_context *base_cxt = (union cdu_context *)
2187 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2188 (base_vf_cid & (ILT_PAGE_CIDS-1));
2189
2190 DP(BNX2X_MSG_IOV,
2191 "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n",
2192 vf->abs_vfid, vf_sb_count(vf), base_vf_cid,
2193 BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt);
2194
2195 /* init statically provisioned resources */
2196 bnx2x_iov_static_resc(bp, &vf->alloc_resc);
2197
2198 /* queues are initialized during VF-ACQUIRE */
2199
2200 /* reserve the vf vlan credit */
2201 bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf));
2202
2203 vf->filter_state = 0;
2204 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id);
2205
2206 /* init mcast object - This object will be re-initialized
2207 * during VF-ACQUIRE with the proper cl_id and cid.
2208 * It needs to be initialized here so that it can be safely
2209 * handled by a subsequent FLR flow.
2210 */
2211 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF,
2212 0xFF, 0xFF, 0xFF,
2213 bnx2x_vf_sp(bp, vf, mcast_rdata),
2214 bnx2x_vf_sp_map(bp, vf, mcast_rdata),
2215 BNX2X_FILTER_MCAST_PENDING,
2216 &vf->filter_state,
2217 BNX2X_OBJ_TYPE_RX_TX);
2218
2219 /* set the mailbox message addresses */
2220 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *)
2221 (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid *
2222 MBX_MSG_ALIGNED_SIZE);
2223
2224 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping +
2225 vfid * MBX_MSG_ALIGNED_SIZE;
2226
2227 /* Enable vf mailbox */
2228 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
2229 }
2230
2231 /* Final VF init */
2232 qcount = 0;
2233 for_each_vf(bp, i) {
2234 struct bnx2x_virtf *vf = BP_VF(bp, i);
2235
2236 /* fill in the BDF and bars */
2237 vf->bus = bnx2x_vf_bus(bp, i);
2238 vf->devfn = bnx2x_vf_devfn(bp, i);
2239 bnx2x_vf_set_bars(bp, vf);
2240
2241 DP(BNX2X_MSG_IOV,
2242 "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n",
2243 vf->abs_vfid, vf->bus, vf->devfn,
2244 (unsigned)vf->bars[0].bar, vf->bars[0].size,
2245 (unsigned)vf->bars[1].bar, vf->bars[1].size,
2246 (unsigned)vf->bars[2].bar, vf->bars[2].size);
2247
2248 /* set local queue arrays */
2249 vf->vfqs = &bp->vfdb->vfqs[qcount];
2250 qcount += bnx2x_vf(bp, i, alloc_resc.num_sbs);
2251 }
2252
2253 return 0;
2254 }
2255
2256 /* called by bnx2x_chip_cleanup */
2257 int bnx2x_iov_chip_cleanup(struct bnx2x *bp)
2258 {
2259 int i;
2260
2261 if (!IS_SRIOV(bp))
2262 return 0;
2263
2264 /* release all the VFs */
2265 for_each_vf(bp, i)
2266 bnx2x_vf_release(bp, BP_VF(bp, i), true); /* blocking */
2267
2268 return 0;
2269 }
2270
2271 /* called by bnx2x_init_hw_func, returns the next ilt line */
2272 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line)
2273 {
2274 int i;
2275 struct bnx2x_ilt *ilt = BP_ILT(bp);
2276
2277 if (!IS_SRIOV(bp))
2278 return line;
2279
2280 /* set vfs ilt lines */
2281 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2282 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i);
2283
2284 ilt->lines[line+i].page = hw_cxt->addr;
2285 ilt->lines[line+i].page_mapping = hw_cxt->mapping;
2286 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */
2287 }
2288 return line + i;
2289 }
2290
2291 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid)
2292 {
2293 return ((cid >= BNX2X_FIRST_VF_CID) &&
2294 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS));
2295 }
2296
2297 static
2298 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp,
2299 struct bnx2x_vf_queue *vfq,
2300 union event_ring_elem *elem)
2301 {
2302 unsigned long ramrod_flags = 0;
2303 int rc = 0;
2304
2305 /* Always push next commands out, don't wait here */
2306 set_bit(RAMROD_CONT, &ramrod_flags);
2307
2308 switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) {
2309 case BNX2X_FILTER_MAC_PENDING:
2310 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem,
2311 &ramrod_flags);
2312 break;
2313 case BNX2X_FILTER_VLAN_PENDING:
2314 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem,
2315 &ramrod_flags);
2316 break;
2317 default:
2318 BNX2X_ERR("Unsupported classification command: %d\n",
2319 elem->message.data.eth_event.echo);
2320 return;
2321 }
2322 if (rc < 0)
2323 BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
2324 else if (rc > 0)
2325 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n");
2326 }
2327
2328 static
2329 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp,
2330 struct bnx2x_virtf *vf)
2331 {
2332 struct bnx2x_mcast_ramrod_params rparam = {NULL};
2333 int rc;
2334
2335 rparam.mcast_obj = &vf->mcast_obj;
2336 vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw);
2337
2338 /* If there are pending mcast commands - send them */
2339 if (vf->mcast_obj.check_pending(&vf->mcast_obj)) {
2340 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
2341 if (rc < 0)
2342 BNX2X_ERR("Failed to send pending mcast commands: %d\n",
2343 rc);
2344 }
2345 }
2346
2347 static
2348 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp,
2349 struct bnx2x_virtf *vf)
2350 {
2351 smp_mb__before_clear_bit();
2352 clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
2353 smp_mb__after_clear_bit();
2354 }
2355
2356 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
2357 {
2358 struct bnx2x_virtf *vf;
2359 int qidx = 0, abs_vfid;
2360 u8 opcode;
2361 u16 cid = 0xffff;
2362
2363 if (!IS_SRIOV(bp))
2364 return 1;
2365
2366 /* first get the cid - the only events we handle here are cfc-delete
2367 * and set-mac completion
2368 */
2369 opcode = elem->message.opcode;
2370
2371 switch (opcode) {
2372 case EVENT_RING_OPCODE_CFC_DEL:
2373 cid = SW_CID((__force __le32)
2374 elem->message.data.cfc_del_event.cid);
2375 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid);
2376 break;
2377 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2378 case EVENT_RING_OPCODE_MULTICAST_RULES:
2379 case EVENT_RING_OPCODE_FILTERS_RULES:
2380 cid = (elem->message.data.eth_event.echo &
2381 BNX2X_SWCID_MASK);
2382 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid);
2383 break;
2384 case EVENT_RING_OPCODE_VF_FLR:
2385 abs_vfid = elem->message.data.vf_flr_event.vf_id;
2386 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n",
2387 abs_vfid);
2388 goto get_vf;
2389 case EVENT_RING_OPCODE_MALICIOUS_VF:
2390 abs_vfid = elem->message.data.malicious_vf_event.vf_id;
2391 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
2392 abs_vfid, elem->message.data.malicious_vf_event.err_id);
2393 goto get_vf;
2394 default:
2395 return 1;
2396 }
2397
2398 /* check if the cid is the VF range */
2399 if (!bnx2x_iov_is_vf_cid(bp, cid)) {
2400 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid);
2401 return 1;
2402 }
2403
2404 /* extract vf and rxq index from vf_cid - relies on the following:
2405 * 1. vfid on cid reflects the true abs_vfid
2406 * 2. the max number of VFs (per path) is 64
2407 */
2408 qidx = cid & ((1 << BNX2X_VF_CID_WND)-1);
2409 abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2410 get_vf:
2411 vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
2412
2413 if (!vf) {
2414 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n",
2415 cid, abs_vfid);
2416 return 0;
2417 }
2418
2419 switch (opcode) {
2420 case EVENT_RING_OPCODE_CFC_DEL:
2421 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n",
2422 vf->abs_vfid, qidx);
2423 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp,
2424 &vfq_get(vf,
2425 qidx)->sp_obj,
2426 BNX2X_Q_CMD_CFC_DEL);
2427 break;
2428 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2429 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n",
2430 vf->abs_vfid, qidx);
2431 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem);
2432 break;
2433 case EVENT_RING_OPCODE_MULTICAST_RULES:
2434 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n",
2435 vf->abs_vfid, qidx);
2436 bnx2x_vf_handle_mcast_eqe(bp, vf);
2437 break;
2438 case EVENT_RING_OPCODE_FILTERS_RULES:
2439 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n",
2440 vf->abs_vfid, qidx);
2441 bnx2x_vf_handle_filters_eqe(bp, vf);
2442 break;
2443 case EVENT_RING_OPCODE_VF_FLR:
2444 DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n",
2445 vf->abs_vfid);
2446 /* Do nothing for now */
2447 break;
2448 case EVENT_RING_OPCODE_MALICIOUS_VF:
2449 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d error id %x\n",
2450 abs_vfid, elem->message.data.malicious_vf_event.err_id);
2451 /* Do nothing for now */
2452 break;
2453 }
2454 /* SRIOV: reschedule any 'in_progress' operations */
2455 bnx2x_iov_sp_event(bp, cid, false);
2456
2457 return 0;
2458 }
2459
2460 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid)
2461 {
2462 /* extract the vf from vf_cid - relies on the following:
2463 * 1. vfid on cid reflects the true abs_vfid
2464 * 2. the max number of VFs (per path) is 64
2465 */
2466 int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2467 return bnx2x_vf_by_abs_fid(bp, abs_vfid);
2468 }
2469
2470 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
2471 struct bnx2x_queue_sp_obj **q_obj)
2472 {
2473 struct bnx2x_virtf *vf;
2474
2475 if (!IS_SRIOV(bp))
2476 return;
2477
2478 vf = bnx2x_vf_by_cid(bp, vf_cid);
2479
2480 if (vf) {
2481 /* extract queue index from vf_cid - relies on the following:
2482 * 1. vfid on cid reflects the true abs_vfid
2483 * 2. the max number of VFs (per path) is 64
2484 */
2485 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1);
2486 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj);
2487 } else {
2488 BNX2X_ERR("No vf matching cid %d\n", vf_cid);
2489 }
2490 }
2491
2492 void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work)
2493 {
2494 struct bnx2x_virtf *vf;
2495
2496 /* check if the cid is the VF range */
2497 if (!IS_SRIOV(bp) || !bnx2x_iov_is_vf_cid(bp, vf_cid))
2498 return;
2499
2500 vf = bnx2x_vf_by_cid(bp, vf_cid);
2501 if (vf) {
2502 /* set in_progress flag */
2503 atomic_set(&vf->op_in_progress, 1);
2504 if (queue_work)
2505 queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
2506 }
2507 }
2508
2509 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp)
2510 {
2511 int i;
2512 int first_queue_query_index, num_queues_req;
2513 dma_addr_t cur_data_offset;
2514 struct stats_query_entry *cur_query_entry;
2515 u8 stats_count = 0;
2516 bool is_fcoe = false;
2517
2518 if (!IS_SRIOV(bp))
2519 return;
2520
2521 if (!NO_FCOE(bp))
2522 is_fcoe = true;
2523
2524 /* fcoe adds one global request and one queue request */
2525 num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe;
2526 first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX -
2527 (is_fcoe ? 0 : 1);
2528
2529 DP(BNX2X_MSG_IOV,
2530 "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",
2531 BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index,
2532 first_queue_query_index + num_queues_req);
2533
2534 cur_data_offset = bp->fw_stats_data_mapping +
2535 offsetof(struct bnx2x_fw_stats_data, queue_stats) +
2536 num_queues_req * sizeof(struct per_queue_stats);
2537
2538 cur_query_entry = &bp->fw_stats_req->
2539 query[first_queue_query_index + num_queues_req];
2540
2541 for_each_vf(bp, i) {
2542 int j;
2543 struct bnx2x_virtf *vf = BP_VF(bp, i);
2544
2545 if (vf->state != VF_ENABLED) {
2546 DP(BNX2X_MSG_IOV,
2547 "vf %d not enabled so no stats for it\n",
2548 vf->abs_vfid);
2549 continue;
2550 }
2551
2552 DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid);
2553 for_each_vfq(vf, j) {
2554 struct bnx2x_vf_queue *rxq = vfq_get(vf, j);
2555
2556 /* collect stats fro active queues only */
2557 if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) ==
2558 BNX2X_Q_LOGICAL_STATE_STOPPED)
2559 continue;
2560
2561 /* create stats query entry for this queue */
2562 cur_query_entry->kind = STATS_TYPE_QUEUE;
2563 cur_query_entry->index = vfq_cl_id(vf, rxq);
2564 cur_query_entry->funcID =
2565 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid));
2566 cur_query_entry->address.hi =
2567 cpu_to_le32(U64_HI(vf->fw_stat_map));
2568 cur_query_entry->address.lo =
2569 cpu_to_le32(U64_LO(vf->fw_stat_map));
2570 DP(BNX2X_MSG_IOV,
2571 "added address %x %x for vf %d queue %d client %d\n",
2572 cur_query_entry->address.hi,
2573 cur_query_entry->address.lo, cur_query_entry->funcID,
2574 j, cur_query_entry->index);
2575 cur_query_entry++;
2576 cur_data_offset += sizeof(struct per_queue_stats);
2577 stats_count++;
2578 }
2579 }
2580 bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count;
2581 }
2582
2583 void bnx2x_iov_sp_task(struct bnx2x *bp)
2584 {
2585 int i;
2586
2587 if (!IS_SRIOV(bp))
2588 return;
2589 /* Iterate over all VFs and invoke state transition for VFs with
2590 * 'in-progress' slow-path operations
2591 */
2592 DP(BNX2X_MSG_IOV, "searching for pending vf operations\n");
2593 for_each_vf(bp, i) {
2594 struct bnx2x_virtf *vf = BP_VF(bp, i);
2595
2596 if (!list_empty(&vf->op_list_head) &&
2597 atomic_read(&vf->op_in_progress)) {
2598 DP(BNX2X_MSG_IOV, "running pending op for vf %d\n", i);
2599 bnx2x_vfop_cur(bp, vf)->transition(bp, vf);
2600 }
2601 }
2602 }
2603
2604 static inline
2605 struct bnx2x_virtf *__vf_from_stat_id(struct bnx2x *bp, u8 stat_id)
2606 {
2607 int i;
2608 struct bnx2x_virtf *vf = NULL;
2609
2610 for_each_vf(bp, i) {
2611 vf = BP_VF(bp, i);
2612 if (stat_id >= vf->igu_base_id &&
2613 stat_id < vf->igu_base_id + vf_sb_count(vf))
2614 break;
2615 }
2616 return vf;
2617 }
2618
2619 /* VF API helpers */
2620 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid,
2621 u8 enable)
2622 {
2623 u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4;
2624 u32 val = enable ? (abs_vfid | (1 << 6)) : 0;
2625
2626 REG_WR(bp, reg, val);
2627 }
2628
2629 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf)
2630 {
2631 int i;
2632
2633 for_each_vfq(vf, i)
2634 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2635 vfq_qzone_id(vf, vfq_get(vf, i)), false);
2636 }
2637
2638 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf)
2639 {
2640 u32 val;
2641
2642 /* clear the VF configuration - pretend */
2643 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
2644 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
2645 val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN |
2646 IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK);
2647 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
2648 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
2649 }
2650
2651 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf)
2652 {
2653 return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF),
2654 BNX2X_VF_MAX_QUEUES);
2655 }
2656
2657 static
2658 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf,
2659 struct vf_pf_resc_request *req_resc)
2660 {
2661 u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2662 u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2663
2664 return ((req_resc->num_rxqs <= rxq_cnt) &&
2665 (req_resc->num_txqs <= txq_cnt) &&
2666 (req_resc->num_sbs <= vf_sb_count(vf)) &&
2667 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) &&
2668 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf)));
2669 }
2670
2671 /* CORE VF API */
2672 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
2673 struct vf_pf_resc_request *resc)
2674 {
2675 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) *
2676 BNX2X_CIDS_PER_VF;
2677
2678 union cdu_context *base_cxt = (union cdu_context *)
2679 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2680 (base_vf_cid & (ILT_PAGE_CIDS-1));
2681 int i;
2682
2683 /* if state is 'acquired' the VF was not released or FLR'd, in
2684 * this case the returned resources match the acquired already
2685 * acquired resources. Verify that the requested numbers do
2686 * not exceed the already acquired numbers.
2687 */
2688 if (vf->state == VF_ACQUIRED) {
2689 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n",
2690 vf->abs_vfid);
2691
2692 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2693 BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n",
2694 vf->abs_vfid);
2695 return -EINVAL;
2696 }
2697 return 0;
2698 }
2699
2700 /* Otherwise vf state must be 'free' or 'reset' */
2701 if (vf->state != VF_FREE && vf->state != VF_RESET) {
2702 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n",
2703 vf->abs_vfid, vf->state);
2704 return -EINVAL;
2705 }
2706
2707 /* static allocation:
2708 * the global maximum number are fixed per VF. fail the request if
2709 * requested number exceed these globals
2710 */
2711 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2712 DP(BNX2X_MSG_IOV,
2713 "cannot fulfill vf resource request. Placing maximal available values in response\n");
2714 /* set the max resource in the vf */
2715 return -ENOMEM;
2716 }
2717
2718 /* Set resources counters - 0 request means max available */
2719 vf_sb_count(vf) = resc->num_sbs;
2720 vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2721 vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2722 if (resc->num_mac_filters)
2723 vf_mac_rules_cnt(vf) = resc->num_mac_filters;
2724 if (resc->num_vlan_filters)
2725 vf_vlan_rules_cnt(vf) = resc->num_vlan_filters;
2726
2727 DP(BNX2X_MSG_IOV,
2728 "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n",
2729 vf_sb_count(vf), vf_rxq_count(vf),
2730 vf_txq_count(vf), vf_mac_rules_cnt(vf),
2731 vf_vlan_rules_cnt(vf));
2732
2733 /* Initialize the queues */
2734 if (!vf->vfqs) {
2735 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n");
2736 return -EINVAL;
2737 }
2738
2739 for_each_vfq(vf, i) {
2740 struct bnx2x_vf_queue *q = vfq_get(vf, i);
2741
2742 if (!q) {
2743 DP(BNX2X_MSG_IOV, "q number %d was not allocated\n", i);
2744 return -EINVAL;
2745 }
2746
2747 q->index = i;
2748 q->cxt = &((base_cxt + i)->eth);
2749 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i;
2750
2751 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n",
2752 vf->abs_vfid, i, q->index, q->cid, q->cxt);
2753
2754 /* init SP objects */
2755 bnx2x_vfq_init(bp, vf, q);
2756 }
2757 vf->state = VF_ACQUIRED;
2758 return 0;
2759 }
2760
2761 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map)
2762 {
2763 struct bnx2x_func_init_params func_init = {0};
2764 u16 flags = 0;
2765 int i;
2766
2767 /* the sb resources are initialized at this point, do the
2768 * FW/HW initializations
2769 */
2770 for_each_vf_sb(vf, i)
2771 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true,
2772 vf_igu_sb(vf, i), vf_igu_sb(vf, i));
2773
2774 /* Sanity checks */
2775 if (vf->state != VF_ACQUIRED) {
2776 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n",
2777 vf->abs_vfid, vf->state);
2778 return -EINVAL;
2779 }
2780 /* FLR cleanup epilogue */
2781 if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid))
2782 return -EBUSY;
2783
2784 /* reset IGU VF statistics: MSIX */
2785 REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0);
2786
2787 /* vf init */
2788 if (vf->cfg_flags & VF_CFG_STATS)
2789 flags |= (FUNC_FLG_STATS | FUNC_FLG_SPQ);
2790
2791 if (vf->cfg_flags & VF_CFG_TPA)
2792 flags |= FUNC_FLG_TPA;
2793
2794 if (is_vf_multi(vf))
2795 flags |= FUNC_FLG_RSS;
2796
2797 /* function setup */
2798 func_init.func_flgs = flags;
2799 func_init.pf_id = BP_FUNC(bp);
2800 func_init.func_id = FW_VF_HANDLE(vf->abs_vfid);
2801 func_init.fw_stat_map = vf->fw_stat_map;
2802 func_init.spq_map = vf->spq_map;
2803 func_init.spq_prod = 0;
2804 bnx2x_func_init(bp, &func_init);
2805
2806 /* Enable the vf */
2807 bnx2x_vf_enable_access(bp, vf->abs_vfid);
2808 bnx2x_vf_enable_traffic(bp, vf);
2809
2810 /* queue protection table */
2811 for_each_vfq(vf, i)
2812 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2813 vfq_qzone_id(vf, vfq_get(vf, i)), true);
2814
2815 vf->state = VF_ENABLED;
2816
2817 /* update vf bulletin board */
2818 bnx2x_post_vf_bulletin(bp, vf->index);
2819
2820 return 0;
2821 }
2822
2823 /* VFOP close (teardown the queues, delete mcasts and close HW) */
2824 static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
2825 {
2826 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2827 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
2828 enum bnx2x_vfop_close_state state = vfop->state;
2829 struct bnx2x_vfop_cmd cmd = {
2830 .done = bnx2x_vfop_close,
2831 .block = false,
2832 };
2833
2834 if (vfop->rc < 0)
2835 goto op_err;
2836
2837 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2838
2839 switch (state) {
2840 case BNX2X_VFOP_CLOSE_QUEUES:
2841
2842 if (++(qx->qid) < vf_rxq_count(vf)) {
2843 vfop->rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qx->qid);
2844 if (vfop->rc)
2845 goto op_err;
2846 return;
2847 }
2848
2849 /* remove multicasts */
2850 vfop->state = BNX2X_VFOP_CLOSE_HW;
2851 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false);
2852 if (vfop->rc)
2853 goto op_err;
2854 return;
2855
2856 case BNX2X_VFOP_CLOSE_HW:
2857
2858 /* disable the interrupts */
2859 DP(BNX2X_MSG_IOV, "disabling igu\n");
2860 bnx2x_vf_igu_disable(bp, vf);
2861
2862 /* disable the VF */
2863 DP(BNX2X_MSG_IOV, "clearing qtbl\n");
2864 bnx2x_vf_clr_qtbl(bp, vf);
2865
2866 goto op_done;
2867 default:
2868 bnx2x_vfop_default(state);
2869 }
2870 op_err:
2871 BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc);
2872 op_done:
2873 vf->state = VF_ACQUIRED;
2874 DP(BNX2X_MSG_IOV, "set state to acquired\n");
2875 bnx2x_vfop_end(bp, vf, vfop);
2876 }
2877
2878 int bnx2x_vfop_close_cmd(struct bnx2x *bp,
2879 struct bnx2x_virtf *vf,
2880 struct bnx2x_vfop_cmd *cmd)
2881 {
2882 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2883 if (vfop) {
2884 vfop->args.qx.qid = -1; /* loop */
2885 bnx2x_vfop_opset(BNX2X_VFOP_CLOSE_QUEUES,
2886 bnx2x_vfop_close, cmd->done);
2887 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_close,
2888 cmd->block);
2889 }
2890 return -ENOMEM;
2891 }
2892
2893 /* VF release can be called either: 1. the VF was acquired but
2894 * not enabled 2. the vf was enabled or in the process of being
2895 * enabled
2896 */
2897 static void bnx2x_vfop_release(struct bnx2x *bp, struct bnx2x_virtf *vf)
2898 {
2899 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2900 struct bnx2x_vfop_cmd cmd = {
2901 .done = bnx2x_vfop_release,
2902 .block = false,
2903 };
2904
2905 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2906
2907 if (vfop->rc < 0)
2908 goto op_err;
2909
2910 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid,
2911 vf->state == VF_FREE ? "Free" :
2912 vf->state == VF_ACQUIRED ? "Acquired" :
2913 vf->state == VF_ENABLED ? "Enabled" :
2914 vf->state == VF_RESET ? "Reset" :
2915 "Unknown");
2916
2917 switch (vf->state) {
2918 case VF_ENABLED:
2919 vfop->rc = bnx2x_vfop_close_cmd(bp, vf, &cmd);
2920 if (vfop->rc)
2921 goto op_err;
2922 return;
2923
2924 case VF_ACQUIRED:
2925 DP(BNX2X_MSG_IOV, "about to free resources\n");
2926 bnx2x_vf_free_resc(bp, vf);
2927 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2928 goto op_done;
2929
2930 case VF_FREE:
2931 case VF_RESET:
2932 /* do nothing */
2933 goto op_done;
2934 default:
2935 bnx2x_vfop_default(vf->state);
2936 }
2937 op_err:
2938 BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, vfop->rc);
2939 op_done:
2940 bnx2x_vfop_end(bp, vf, vfop);
2941 }
2942
2943 int bnx2x_vfop_release_cmd(struct bnx2x *bp,
2944 struct bnx2x_virtf *vf,
2945 struct bnx2x_vfop_cmd *cmd)
2946 {
2947 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2948 if (vfop) {
2949 bnx2x_vfop_opset(-1, /* use vf->state */
2950 bnx2x_vfop_release, cmd->done);
2951 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_release,
2952 cmd->block);
2953 }
2954 return -ENOMEM;
2955 }
2956
2957 /* VF release ~ VF close + VF release-resources
2958 * Release is the ultimate SW shutdown and is called whenever an
2959 * irrecoverable error is encountered.
2960 */
2961 void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block)
2962 {
2963 struct bnx2x_vfop_cmd cmd = {
2964 .done = NULL,
2965 .block = block,
2966 };
2967 int rc;
2968 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
2969
2970 rc = bnx2x_vfop_release_cmd(bp, vf, &cmd);
2971 if (rc)
2972 WARN(rc,
2973 "VF[%d] Failed to allocate resources for release op- rc=%d\n",
2974 vf->abs_vfid, rc);
2975 }
2976
2977 static inline void bnx2x_vf_get_sbdf(struct bnx2x *bp,
2978 struct bnx2x_virtf *vf, u32 *sbdf)
2979 {
2980 *sbdf = vf->devfn | (vf->bus << 8);
2981 }
2982
2983 static inline void bnx2x_vf_get_bars(struct bnx2x *bp, struct bnx2x_virtf *vf,
2984 struct bnx2x_vf_bar_info *bar_info)
2985 {
2986 int n;
2987
2988 bar_info->nr_bars = bp->vfdb->sriov.nres;
2989 for (n = 0; n < bar_info->nr_bars; n++)
2990 bar_info->bars[n] = vf->bars[n];
2991 }
2992
2993 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
2994 enum channel_tlvs tlv)
2995 {
2996 /* lock the channel */
2997 mutex_lock(&vf->op_mutex);
2998
2999 /* record the locking op */
3000 vf->op_current = tlv;
3001
3002 /* log the lock */
3003 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n",
3004 vf->abs_vfid, tlv);
3005 }
3006
3007 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3008 enum channel_tlvs expected_tlv)
3009 {
3010 WARN(expected_tlv != vf->op_current,
3011 "lock mismatch: expected %d found %d", expected_tlv,
3012 vf->op_current);
3013
3014 /* lock the channel */
3015 mutex_unlock(&vf->op_mutex);
3016
3017 /* log the unlock */
3018 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n",
3019 vf->abs_vfid, vf->op_current);
3020
3021 /* record the locking op */
3022 vf->op_current = CHANNEL_TLV_NONE;
3023 }
3024
3025 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
3026 {
3027
3028 struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
3029
3030 DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
3031 num_vfs_param, BNX2X_NR_VIRTFN(bp));
3032
3033 /* HW channel is only operational when PF is up */
3034 if (bp->state != BNX2X_STATE_OPEN) {
3035 BNX2X_ERR("VF num configurtion via sysfs not supported while PF is down");
3036 return -EINVAL;
3037 }
3038
3039 /* we are always bound by the total_vfs in the configuration space */
3040 if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) {
3041 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n",
3042 num_vfs_param, BNX2X_NR_VIRTFN(bp));
3043 num_vfs_param = BNX2X_NR_VIRTFN(bp);
3044 }
3045
3046 bp->requested_nr_virtfn = num_vfs_param;
3047 if (num_vfs_param == 0) {
3048 pci_disable_sriov(dev);
3049 return 0;
3050 } else {
3051 return bnx2x_enable_sriov(bp);
3052 }
3053 }
3054
3055 int bnx2x_enable_sriov(struct bnx2x *bp)
3056 {
3057 int rc = 0, req_vfs = bp->requested_nr_virtfn;
3058
3059 rc = pci_enable_sriov(bp->pdev, req_vfs);
3060 if (rc) {
3061 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
3062 return rc;
3063 }
3064 DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs);
3065 return req_vfs;
3066 }
3067
3068 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp)
3069 {
3070 int vfidx;
3071 struct pf_vf_bulletin_content *bulletin;
3072
3073 DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n");
3074 for_each_vf(bp, vfidx) {
3075 bulletin = BP_VF_BULLETIN(bp, vfidx);
3076 if (BP_VF(bp, vfidx)->cfg_flags & VF_CFG_VLAN)
3077 bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0);
3078 }
3079 }
3080
3081 void bnx2x_disable_sriov(struct bnx2x *bp)
3082 {
3083 pci_disable_sriov(bp->pdev);
3084 }
3085
3086 static int bnx2x_vf_ndo_sanity(struct bnx2x *bp, int vfidx,
3087 struct bnx2x_virtf *vf)
3088 {
3089 if (!IS_SRIOV(bp)) {
3090 BNX2X_ERR("vf ndo called though sriov is disabled\n");
3091 return -EINVAL;
3092 }
3093
3094 if (vfidx >= BNX2X_NR_VIRTFN(bp)) {
3095 BNX2X_ERR("vf ndo called for uninitialized VF. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
3096 vfidx, BNX2X_NR_VIRTFN(bp));
3097 return -EINVAL;
3098 }
3099
3100 if (!vf) {
3101 BNX2X_ERR("vf ndo called but vf was null. vfidx was %d\n",
3102 vfidx);
3103 return -EINVAL;
3104 }
3105
3106 return 0;
3107 }
3108
3109 int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
3110 struct ifla_vf_info *ivi)
3111 {
3112 struct bnx2x *bp = netdev_priv(dev);
3113 struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
3114 struct bnx2x_vlan_mac_obj *mac_obj = &bnx2x_vfq(vf, 0, mac_obj);
3115 struct bnx2x_vlan_mac_obj *vlan_obj = &bnx2x_vfq(vf, 0, vlan_obj);
3116 struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
3117 int rc;
3118
3119 /* sanity */
3120 rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
3121 if (rc)
3122 return rc;
3123 if (!mac_obj || !vlan_obj || !bulletin) {
3124 BNX2X_ERR("VF partially initialized\n");
3125 return -EINVAL;
3126 }
3127
3128 ivi->vf = vfidx;
3129 ivi->qos = 0;
3130 ivi->tx_rate = 10000; /* always 10G. TBA take from link struct */
3131 ivi->spoofchk = 1; /*always enabled */
3132 if (vf->state == VF_ENABLED) {
3133 /* mac and vlan are in vlan_mac objects */
3134 mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac,
3135 0, ETH_ALEN);
3136 vlan_obj->get_n_elements(bp, vlan_obj, 1, (u8 *)&ivi->vlan,
3137 0, VLAN_HLEN);
3138 } else {
3139 /* mac */
3140 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
3141 /* mac configured by ndo so its in bulletin board */
3142 memcpy(&ivi->mac, bulletin->mac, ETH_ALEN);
3143 else
3144 /* funtion has not been loaded yet. Show mac as 0s */
3145 memset(&ivi->mac, 0, ETH_ALEN);
3146
3147 /* vlan */
3148 if (bulletin->valid_bitmap & (1 << VLAN_VALID))
3149 /* vlan configured by ndo so its in bulletin board */
3150 memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN);
3151 else
3152 /* funtion has not been loaded yet. Show vlans as 0s */
3153 memset(&ivi->vlan, 0, VLAN_HLEN);
3154 }
3155
3156 return 0;
3157 }
3158
3159 /* New mac for VF. Consider these cases:
3160 * 1. VF hasn't been acquired yet - save the mac in local bulletin board and
3161 * supply at acquire.
3162 * 2. VF has already been acquired but has not yet initialized - store in local
3163 * bulletin board. mac will be posted on VF bulletin board after VF init. VF
3164 * will configure this mac when it is ready.
3165 * 3. VF has already initialized but has not yet setup a queue - post the new
3166 * mac on VF's bulletin board right now. VF will configure this mac when it
3167 * is ready.
3168 * 4. VF has already set a queue - delete any macs already configured for this
3169 * queue and manually config the new mac.
3170 * In any event, once this function has been called refuse any attempts by the
3171 * VF to configure any mac for itself except for this mac. In case of a race
3172 * where the VF fails to see the new post on its bulletin board before sending a
3173 * mac configuration request, the PF will simply fail the request and VF can try
3174 * again after consulting its bulletin board.
3175 */
3176 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
3177 {
3178 struct bnx2x *bp = netdev_priv(dev);
3179 int rc, q_logical_state;
3180 struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
3181 struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
3182
3183 /* sanity */
3184 rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
3185 if (rc)
3186 return rc;
3187 if (!is_valid_ether_addr(mac)) {
3188 BNX2X_ERR("mac address invalid\n");
3189 return -EINVAL;
3190 }
3191
3192 /* update PF's copy of the VF's bulletin. will no longer accept mac
3193 * configuration requests from vf unless match this mac
3194 */
3195 bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID;
3196 memcpy(bulletin->mac, mac, ETH_ALEN);
3197
3198 /* Post update on VF's bulletin board */
3199 rc = bnx2x_post_vf_bulletin(bp, vfidx);
3200 if (rc) {
3201 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
3202 return rc;
3203 }
3204
3205 /* is vf initialized and queue set up? */
3206 q_logical_state =
3207 bnx2x_get_q_logical_state(bp, &bnx2x_vfq(vf, 0, sp_obj));
3208 if (vf->state == VF_ENABLED &&
3209 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3210 /* configure the mac in device on this vf's queue */
3211 unsigned long ramrod_flags = 0;
3212 struct bnx2x_vlan_mac_obj *mac_obj = &bnx2x_vfq(vf, 0, mac_obj);
3213
3214 /* must lock vfpf channel to protect against vf flows */
3215 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3216
3217 /* remove existing eth macs */
3218 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
3219 if (rc) {
3220 BNX2X_ERR("failed to delete eth macs\n");
3221 return -EINVAL;
3222 }
3223
3224 /* remove existing uc list macs */
3225 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true);
3226 if (rc) {
3227 BNX2X_ERR("failed to delete uc_list macs\n");
3228 return -EINVAL;
3229 }
3230
3231 /* configure the new mac to device */
3232 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3233 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true,
3234 BNX2X_ETH_MAC, &ramrod_flags);
3235
3236 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3237 }
3238
3239 return 0;
3240 }
3241
3242 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
3243 {
3244 struct bnx2x *bp = netdev_priv(dev);
3245 int rc, q_logical_state;
3246 struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
3247 struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
3248
3249 /* sanity */
3250 rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
3251 if (rc)
3252 return rc;
3253
3254 if (vlan > 4095) {
3255 BNX2X_ERR("illegal vlan value %d\n", vlan);
3256 return -EINVAL;
3257 }
3258
3259 DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n",
3260 vfidx, vlan, 0);
3261
3262 /* update PF's copy of the VF's bulletin. No point in posting the vlan
3263 * to the VF since it doesn't have anything to do with it. But it useful
3264 * to store it here in case the VF is not up yet and we can only
3265 * configure the vlan later when it does.
3266 */
3267 bulletin->valid_bitmap |= 1 << VLAN_VALID;
3268 bulletin->vlan = vlan;
3269
3270 /* is vf initialized and queue set up? */
3271 q_logical_state =
3272 bnx2x_get_q_logical_state(bp, &bnx2x_vfq(vf, 0, sp_obj));
3273 if (vf->state == VF_ENABLED &&
3274 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3275 /* configure the vlan in device on this vf's queue */
3276 unsigned long ramrod_flags = 0;
3277 unsigned long vlan_mac_flags = 0;
3278 struct bnx2x_vlan_mac_obj *vlan_obj =
3279 &bnx2x_vfq(vf, 0, vlan_obj);
3280 struct bnx2x_vlan_mac_ramrod_params ramrod_param;
3281 struct bnx2x_queue_state_params q_params = {NULL};
3282 struct bnx2x_queue_update_params *update_params;
3283
3284 memset(&ramrod_param, 0, sizeof(ramrod_param));
3285
3286 /* must lock vfpf channel to protect against vf flows */
3287 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3288
3289 /* remove existing vlans */
3290 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3291 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags,
3292 &ramrod_flags);
3293 if (rc) {
3294 BNX2X_ERR("failed to delete vlans\n");
3295 return -EINVAL;
3296 }
3297
3298 /* send queue update ramrod to configure default vlan and silent
3299 * vlan removal
3300 */
3301 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
3302 q_params.cmd = BNX2X_Q_CMD_UPDATE;
3303 q_params.q_obj = &bnx2x_vfq(vf, 0, sp_obj);
3304 update_params = &q_params.params.update;
3305 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
3306 &update_params->update_flags);
3307 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
3308 &update_params->update_flags);
3309
3310 if (vlan == 0) {
3311 /* if vlan is 0 then we want to leave the VF traffic
3312 * untagged, and leave the incoming traffic untouched
3313 * (i.e. do not remove any vlan tags).
3314 */
3315 __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3316 &update_params->update_flags);
3317 __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3318 &update_params->update_flags);
3319 } else {
3320 /* configure the new vlan to device */
3321 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3322 ramrod_param.vlan_mac_obj = vlan_obj;
3323 ramrod_param.ramrod_flags = ramrod_flags;
3324 ramrod_param.user_req.u.vlan.vlan = vlan;
3325 ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
3326 rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
3327 if (rc) {
3328 BNX2X_ERR("failed to configure vlan\n");
3329 return -EINVAL;
3330 }
3331
3332 /* configure default vlan to vf queue and set silent
3333 * vlan removal (the vf remains unaware of this vlan).
3334 */
3335 update_params = &q_params.params.update;
3336 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3337 &update_params->update_flags);
3338 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3339 &update_params->update_flags);
3340 update_params->def_vlan = vlan;
3341 }
3342
3343 /* Update the Queue state */
3344 rc = bnx2x_queue_state_change(bp, &q_params);
3345 if (rc) {
3346 BNX2X_ERR("Failed to configure default VLAN\n");
3347 return rc;
3348 }
3349
3350 /* clear the flag indicating that this VF needs its vlan
3351 * (will only be set if the HV configured th Vlan before vf was
3352 * and we were called because the VF came up later
3353 */
3354 vf->cfg_flags &= ~VF_CFG_VLAN;
3355
3356 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3357 }
3358 return 0;
3359 }
3360
3361 /* crc is the first field in the bulletin board. compute the crc over the
3362 * entire bulletin board excluding the crc field itself
3363 */
3364 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
3365 struct pf_vf_bulletin_content *bulletin)
3366 {
3367 return crc32(BULLETIN_CRC_SEED,
3368 ((u8 *)bulletin) + sizeof(bulletin->crc),
3369 bulletin->length - sizeof(bulletin->crc));
3370 }
3371
3372 /* Check for new posts on the bulletin board */
3373 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
3374 {
3375 struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
3376 int attempts;
3377
3378 /* bulletin board hasn't changed since last sample */
3379 if (bp->old_bulletin.version == bulletin.version)
3380 return PFVF_BULLETIN_UNCHANGED;
3381
3382 /* validate crc of new bulletin board */
3383 if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) {
3384 /* sampling structure in mid post may result with corrupted data
3385 * validate crc to ensure coherency.
3386 */
3387 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
3388 bulletin = bp->pf2vf_bulletin->content;
3389 if (bulletin.crc == bnx2x_crc_vf_bulletin(bp,
3390 &bulletin))
3391 break;
3392 BNX2X_ERR("bad crc on bulletin board. contained %x computed %x\n",
3393 bulletin.crc,
3394 bnx2x_crc_vf_bulletin(bp, &bulletin));
3395 }
3396 if (attempts >= BULLETIN_ATTEMPTS) {
3397 BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
3398 attempts);
3399 return PFVF_BULLETIN_CRC_ERR;
3400 }
3401 }
3402
3403 /* the mac address in bulletin board is valid and is new */
3404 if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID &&
3405 memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) {
3406 /* update new mac to net device */
3407 memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
3408 }
3409
3410 /* the vlan in bulletin board is valid and is new */
3411 if (bulletin.valid_bitmap & 1 << VLAN_VALID)
3412 memcpy(&bulletin.vlan, &bp->old_bulletin.vlan, VLAN_HLEN);
3413
3414 /* copy new bulletin board to bp */
3415 bp->old_bulletin = bulletin;
3416
3417 return PFVF_BULLETIN_UPDATED;
3418 }
3419
3420 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
3421 {
3422 /* vf doorbells are embedded within the regview */
3423 return bp->regview + PXP_VF_ADDR_DB_START;
3424 }
3425
3426 int bnx2x_vf_pci_alloc(struct bnx2x *bp)
3427 {
3428 mutex_init(&bp->vf2pf_mutex);
3429
3430 /* allocate vf2pf mailbox for vf to pf channel */
3431 BNX2X_PCI_ALLOC(bp->vf2pf_mbox, &bp->vf2pf_mbox_mapping,
3432 sizeof(struct bnx2x_vf_mbx_msg));
3433
3434 /* allocate pf 2 vf bulletin board */
3435 BNX2X_PCI_ALLOC(bp->pf2vf_bulletin, &bp->pf2vf_bulletin_mapping,
3436 sizeof(union pf_vf_bulletin));
3437
3438 return 0;
3439
3440 alloc_mem_err:
3441 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
3442 sizeof(struct bnx2x_vf_mbx_msg));
3443 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
3444 sizeof(union pf_vf_bulletin));
3445 return -ENOMEM;
3446 }
3447
3448 int bnx2x_open_epilog(struct bnx2x *bp)
3449 {
3450 /* Enable sriov via delayed work. This must be done via delayed work
3451 * because it causes the probe of the vf devices to be run, which invoke
3452 * register_netdevice which must have rtnl lock taken. As we are holding
3453 * the lock right now, that could only work if the probe would not take
3454 * the lock. However, as the probe of the vf may be called from other
3455 * contexts as well (such as passthrough to vm failes) it can't assume
3456 * the lock is being held for it. Using delayed work here allows the
3457 * probe code to simply take the lock (i.e. wait for it to be released
3458 * if it is being held). We only want to do this if the number of VFs
3459 * was set before PF driver was loaded.
3460 */
3461 if (IS_SRIOV(bp) && BNX2X_NR_VIRTFN(bp)) {
3462 smp_mb__before_clear_bit();
3463 set_bit(BNX2X_SP_RTNL_ENABLE_SRIOV, &bp->sp_rtnl_state);
3464 smp_mb__after_clear_bit();
3465 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3466 }
3467
3468 return 0;
3469 }
Linux kernel - Deliverables
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