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bnx2x: Fix support for VFs on some PFs
[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 enum bnx2x_vfop_rss_state {
174 BNX2X_VFOP_RSS_CONFIG,
175 BNX2X_VFOP_RSS_DONE
176 };
177
178 #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0)
179
180 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
181 struct bnx2x_queue_init_params *init_params,
182 struct bnx2x_queue_setup_params *setup_params,
183 u16 q_idx, u16 sb_idx)
184 {
185 DP(BNX2X_MSG_IOV,
186 "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d",
187 vf->abs_vfid,
188 q_idx,
189 sb_idx,
190 init_params->tx.sb_cq_index,
191 init_params->tx.hc_rate,
192 setup_params->flags,
193 setup_params->txq_params.traffic_type);
194 }
195
196 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
197 struct bnx2x_queue_init_params *init_params,
198 struct bnx2x_queue_setup_params *setup_params,
199 u16 q_idx, u16 sb_idx)
200 {
201 struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params;
202
203 DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n"
204 "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n",
205 vf->abs_vfid,
206 q_idx,
207 sb_idx,
208 init_params->rx.sb_cq_index,
209 init_params->rx.hc_rate,
210 setup_params->gen_params.mtu,
211 rxq_params->buf_sz,
212 rxq_params->sge_buf_sz,
213 rxq_params->max_sges_pkt,
214 rxq_params->tpa_agg_sz,
215 setup_params->flags,
216 rxq_params->drop_flags,
217 rxq_params->cache_line_log);
218 }
219
220 void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
221 struct bnx2x_virtf *vf,
222 struct bnx2x_vf_queue *q,
223 struct bnx2x_vfop_qctor_params *p,
224 unsigned long q_type)
225 {
226 struct bnx2x_queue_init_params *init_p = &p->qstate.params.init;
227 struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup;
228
229 /* INIT */
230
231 /* Enable host coalescing in the transition to INIT state */
232 if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags))
233 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags);
234
235 if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags))
236 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags);
237
238 /* FW SB ID */
239 init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
240 init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
241
242 /* context */
243 init_p->cxts[0] = q->cxt;
244
245 /* SETUP */
246
247 /* Setup-op general parameters */
248 setup_p->gen_params.spcl_id = vf->sp_cl_id;
249 setup_p->gen_params.stat_id = vfq_stat_id(vf, q);
250
251 /* Setup-op pause params:
252 * Nothing to do, the pause thresholds are set by default to 0 which
253 * effectively turns off the feature for this queue. We don't want
254 * one queue (VF) to interfering with another queue (another VF)
255 */
256 if (vf->cfg_flags & VF_CFG_FW_FC)
257 BNX2X_ERR("No support for pause to VFs (abs_vfid: %d)\n",
258 vf->abs_vfid);
259 /* Setup-op flags:
260 * collect statistics, zero statistics, local-switching, security,
261 * OV for Flex10, RSS and MCAST for leading
262 */
263 if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags))
264 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags);
265
266 /* for VFs, enable tx switching, bd coherency, and mac address
267 * anti-spoofing
268 */
269 __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags);
270 __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags);
271 __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
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
402 /* next state */
403 vfop->state = BNX2X_VFOP_QDTOR_DONE;
404
405 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
406 }
407
408 /* next state */
409 vfop->state = BNX2X_VFOP_QDTOR_TERMINATE;
410
411 q_params->cmd = BNX2X_Q_CMD_HALT;
412 vfop->rc = bnx2x_queue_state_change(bp, q_params);
413
414 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
415
416 case BNX2X_VFOP_QDTOR_TERMINATE:
417 /* next state */
418 vfop->state = BNX2X_VFOP_QDTOR_CFCDEL;
419
420 q_params->cmd = BNX2X_Q_CMD_TERMINATE;
421 vfop->rc = bnx2x_queue_state_change(bp, q_params);
422
423 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
424
425 case BNX2X_VFOP_QDTOR_CFCDEL:
426 /* next state */
427 vfop->state = BNX2X_VFOP_QDTOR_DONE;
428
429 q_params->cmd = BNX2X_Q_CMD_CFC_DEL;
430 vfop->rc = bnx2x_queue_state_change(bp, q_params);
431
432 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
433 op_err:
434 BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n",
435 vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc);
436 op_done:
437 case BNX2X_VFOP_QDTOR_DONE:
438 /* invalidate the context */
439 if (qdtor->cxt) {
440 qdtor->cxt->ustorm_ag_context.cdu_usage = 0;
441 qdtor->cxt->xstorm_ag_context.cdu_reserved = 0;
442 }
443 bnx2x_vfop_end(bp, vf, vfop);
444 return;
445 default:
446 bnx2x_vfop_default(state);
447 }
448 op_pending:
449 return;
450 }
451
452 static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
453 struct bnx2x_virtf *vf,
454 struct bnx2x_vfop_cmd *cmd,
455 int qid)
456 {
457 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
458
459 if (vfop) {
460 struct bnx2x_queue_state_params *qstate =
461 &vf->op_params.qctor.qstate;
462
463 memset(qstate, 0, sizeof(*qstate));
464 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
465
466 vfop->args.qdtor.qid = qid;
467 vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt);
468
469 bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT,
470 bnx2x_vfop_qdtor, cmd->done);
471 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
472 cmd->block);
473 }
474 DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
475 vf->abs_vfid, vfop->rc);
476 return -ENOMEM;
477 }
478
479 static void
480 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
481 {
482 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
483 if (vf) {
484 /* the first igu entry belonging to VFs of this PF */
485 if (!BP_VFDB(bp)->first_vf_igu_entry)
486 BP_VFDB(bp)->first_vf_igu_entry = igu_sb_id;
487
488 /* the first igu entry belonging to this VF */
489 if (!vf_sb_count(vf))
490 vf->igu_base_id = igu_sb_id;
491
492 ++vf_sb_count(vf);
493 ++vf->sb_count;
494 }
495 BP_VFDB(bp)->vf_sbs_pool++;
496 }
497
498 /* VFOP MAC/VLAN helpers */
499 static inline void bnx2x_vfop_credit(struct bnx2x *bp,
500 struct bnx2x_vfop *vfop,
501 struct bnx2x_vlan_mac_obj *obj)
502 {
503 struct bnx2x_vfop_args_filters *args = &vfop->args.filters;
504
505 /* update credit only if there is no error
506 * and a valid credit counter
507 */
508 if (!vfop->rc && args->credit) {
509 struct list_head *pos;
510 int read_lock;
511 int cnt = 0;
512
513 read_lock = bnx2x_vlan_mac_h_read_lock(bp, obj);
514 if (read_lock)
515 DP(BNX2X_MSG_SP, "Failed to take vlan mac read head; continuing anyway\n");
516
517 list_for_each(pos, &obj->head)
518 cnt++;
519
520 if (!read_lock)
521 bnx2x_vlan_mac_h_read_unlock(bp, obj);
522
523 atomic_set(args->credit, cnt);
524 }
525 }
526
527 static int bnx2x_vfop_set_user_req(struct bnx2x *bp,
528 struct bnx2x_vfop_filter *pos,
529 struct bnx2x_vlan_mac_data *user_req)
530 {
531 user_req->cmd = pos->add ? BNX2X_VLAN_MAC_ADD :
532 BNX2X_VLAN_MAC_DEL;
533
534 switch (pos->type) {
535 case BNX2X_VFOP_FILTER_MAC:
536 memcpy(user_req->u.mac.mac, pos->mac, ETH_ALEN);
537 break;
538 case BNX2X_VFOP_FILTER_VLAN:
539 user_req->u.vlan.vlan = pos->vid;
540 break;
541 default:
542 BNX2X_ERR("Invalid filter type, skipping\n");
543 return 1;
544 }
545 return 0;
546 }
547
548 static int bnx2x_vfop_config_list(struct bnx2x *bp,
549 struct bnx2x_vfop_filters *filters,
550 struct bnx2x_vlan_mac_ramrod_params *vlan_mac)
551 {
552 struct bnx2x_vfop_filter *pos, *tmp;
553 struct list_head rollback_list, *filters_list = &filters->head;
554 struct bnx2x_vlan_mac_data *user_req = &vlan_mac->user_req;
555 int rc = 0, cnt = 0;
556
557 INIT_LIST_HEAD(&rollback_list);
558
559 list_for_each_entry_safe(pos, tmp, filters_list, link) {
560 if (bnx2x_vfop_set_user_req(bp, pos, user_req))
561 continue;
562
563 rc = bnx2x_config_vlan_mac(bp, vlan_mac);
564 if (rc >= 0) {
565 cnt += pos->add ? 1 : -1;
566 list_move(&pos->link, &rollback_list);
567 rc = 0;
568 } else if (rc == -EEXIST) {
569 rc = 0;
570 } else {
571 BNX2X_ERR("Failed to add a new vlan_mac command\n");
572 break;
573 }
574 }
575
576 /* rollback if error or too many rules added */
577 if (rc || cnt > filters->add_cnt) {
578 BNX2X_ERR("error or too many rules added. Performing rollback\n");
579 list_for_each_entry_safe(pos, tmp, &rollback_list, link) {
580 pos->add = !pos->add; /* reverse op */
581 bnx2x_vfop_set_user_req(bp, pos, user_req);
582 bnx2x_config_vlan_mac(bp, vlan_mac);
583 list_del(&pos->link);
584 }
585 cnt = 0;
586 if (!rc)
587 rc = -EINVAL;
588 }
589 filters->add_cnt = cnt;
590 return rc;
591 }
592
593 /* VFOP set VLAN/MAC */
594 static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
595 {
596 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
597 struct bnx2x_vlan_mac_ramrod_params *vlan_mac = &vfop->op_p->vlan_mac;
598 struct bnx2x_vlan_mac_obj *obj = vlan_mac->vlan_mac_obj;
599 struct bnx2x_vfop_filters *filters = vfop->args.filters.multi_filter;
600
601 enum bnx2x_vfop_vlan_mac_state state = vfop->state;
602
603 if (vfop->rc < 0)
604 goto op_err;
605
606 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
607
608 bnx2x_vfop_reset_wq(vf);
609
610 switch (state) {
611 case BNX2X_VFOP_VLAN_MAC_CLEAR:
612 /* next state */
613 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
614
615 /* do delete */
616 vfop->rc = obj->delete_all(bp, obj,
617 &vlan_mac->user_req.vlan_mac_flags,
618 &vlan_mac->ramrod_flags);
619
620 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
621
622 case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE:
623 /* next state */
624 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
625
626 /* do config */
627 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
628 if (vfop->rc == -EEXIST)
629 vfop->rc = 0;
630
631 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
632
633 case BNX2X_VFOP_VLAN_MAC_CHK_DONE:
634 vfop->rc = !!obj->raw.check_pending(&obj->raw);
635 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
636
637 case BNX2X_VFOP_MAC_CONFIG_LIST:
638 /* next state */
639 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
640
641 /* do list config */
642 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
643 if (vfop->rc)
644 goto op_err;
645
646 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
647 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
648 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
649
650 case BNX2X_VFOP_VLAN_CONFIG_LIST:
651 /* next state */
652 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
653
654 /* do list config */
655 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
656 if (!vfop->rc) {
657 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
658 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
659 }
660 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
661
662 default:
663 bnx2x_vfop_default(state);
664 }
665 op_err:
666 BNX2X_ERR("VLAN-MAC error: rc %d\n", vfop->rc);
667 op_done:
668 kfree(filters);
669 bnx2x_vfop_credit(bp, vfop, obj);
670 bnx2x_vfop_end(bp, vf, vfop);
671 op_pending:
672 return;
673 }
674
675 struct bnx2x_vfop_vlan_mac_flags {
676 bool drv_only;
677 bool dont_consume;
678 bool single_cmd;
679 bool add;
680 };
681
682 static void
683 bnx2x_vfop_vlan_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
684 struct bnx2x_vfop_vlan_mac_flags *flags)
685 {
686 struct bnx2x_vlan_mac_data *ureq = &ramrod->user_req;
687
688 memset(ramrod, 0, sizeof(*ramrod));
689
690 /* ramrod flags */
691 if (flags->drv_only)
692 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod->ramrod_flags);
693 if (flags->single_cmd)
694 set_bit(RAMROD_EXEC, &ramrod->ramrod_flags);
695
696 /* mac_vlan flags */
697 if (flags->dont_consume)
698 set_bit(BNX2X_DONT_CONSUME_CAM_CREDIT, &ureq->vlan_mac_flags);
699
700 /* cmd */
701 ureq->cmd = flags->add ? BNX2X_VLAN_MAC_ADD : BNX2X_VLAN_MAC_DEL;
702 }
703
704 static inline void
705 bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
706 struct bnx2x_vfop_vlan_mac_flags *flags)
707 {
708 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, flags);
709 set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags);
710 }
711
712 static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp,
713 struct bnx2x_virtf *vf,
714 struct bnx2x_vfop_cmd *cmd,
715 int qid, bool drv_only)
716 {
717 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
718 int rc;
719
720 if (vfop) {
721 struct bnx2x_vfop_args_filters filters = {
722 .multi_filter = NULL, /* single */
723 .credit = NULL, /* consume credit */
724 };
725 struct bnx2x_vfop_vlan_mac_flags flags = {
726 .drv_only = drv_only,
727 .dont_consume = (filters.credit != NULL),
728 .single_cmd = true,
729 .add = false /* don't care */,
730 };
731 struct bnx2x_vlan_mac_ramrod_params *ramrod =
732 &vf->op_params.vlan_mac;
733
734 /* set ramrod params */
735 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
736
737 /* set object */
738 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
739 if (rc)
740 return rc;
741 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
742
743 /* set extra args */
744 vfop->args.filters = filters;
745
746 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
747 bnx2x_vfop_vlan_mac, cmd->done);
748 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
749 cmd->block);
750 }
751 return -ENOMEM;
752 }
753
754 int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
755 struct bnx2x_virtf *vf,
756 struct bnx2x_vfop_cmd *cmd,
757 struct bnx2x_vfop_filters *macs,
758 int qid, bool drv_only)
759 {
760 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
761 int rc;
762
763 if (vfop) {
764 struct bnx2x_vfop_args_filters filters = {
765 .multi_filter = macs,
766 .credit = NULL, /* consume credit */
767 };
768 struct bnx2x_vfop_vlan_mac_flags flags = {
769 .drv_only = drv_only,
770 .dont_consume = (filters.credit != NULL),
771 .single_cmd = false,
772 .add = false, /* don't care since only the items in the
773 * filters list affect the sp operation,
774 * not the list itself
775 */
776 };
777 struct bnx2x_vlan_mac_ramrod_params *ramrod =
778 &vf->op_params.vlan_mac;
779
780 /* set ramrod params */
781 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
782
783 /* set object */
784 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
785 if (rc)
786 return rc;
787 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
788
789 /* set extra args */
790 filters.multi_filter->add_cnt = BNX2X_VFOP_FILTER_ADD_CNT_MAX;
791 vfop->args.filters = filters;
792
793 bnx2x_vfop_opset(BNX2X_VFOP_MAC_CONFIG_LIST,
794 bnx2x_vfop_vlan_mac, cmd->done);
795 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
796 cmd->block);
797 }
798 return -ENOMEM;
799 }
800
801 int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
802 struct bnx2x_virtf *vf,
803 struct bnx2x_vfop_cmd *cmd,
804 int qid, u16 vid, bool add)
805 {
806 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
807 int rc;
808
809 if (vfop) {
810 struct bnx2x_vfop_args_filters filters = {
811 .multi_filter = NULL, /* single command */
812 .credit = &bnx2x_vfq(vf, qid, vlan_count),
813 };
814 struct bnx2x_vfop_vlan_mac_flags flags = {
815 .drv_only = false,
816 .dont_consume = (filters.credit != NULL),
817 .single_cmd = true,
818 .add = add,
819 };
820 struct bnx2x_vlan_mac_ramrod_params *ramrod =
821 &vf->op_params.vlan_mac;
822
823 /* set ramrod params */
824 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
825 ramrod->user_req.u.vlan.vlan = vid;
826
827 /* set object */
828 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
829 if (rc)
830 return rc;
831 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
832
833 /* set extra args */
834 vfop->args.filters = filters;
835
836 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
837 bnx2x_vfop_vlan_mac, cmd->done);
838 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
839 cmd->block);
840 }
841 return -ENOMEM;
842 }
843
844 static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp,
845 struct bnx2x_virtf *vf,
846 struct bnx2x_vfop_cmd *cmd,
847 int qid, bool drv_only)
848 {
849 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
850 int rc;
851
852 if (vfop) {
853 struct bnx2x_vfop_args_filters filters = {
854 .multi_filter = NULL, /* single command */
855 .credit = &bnx2x_vfq(vf, qid, vlan_count),
856 };
857 struct bnx2x_vfop_vlan_mac_flags flags = {
858 .drv_only = drv_only,
859 .dont_consume = (filters.credit != NULL),
860 .single_cmd = true,
861 .add = false, /* don't care */
862 };
863 struct bnx2x_vlan_mac_ramrod_params *ramrod =
864 &vf->op_params.vlan_mac;
865
866 /* set ramrod params */
867 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
868
869 /* set object */
870 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
871 if (rc)
872 return rc;
873 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
874
875 /* set extra args */
876 vfop->args.filters = filters;
877
878 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
879 bnx2x_vfop_vlan_mac, cmd->done);
880 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
881 cmd->block);
882 }
883 return -ENOMEM;
884 }
885
886 int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
887 struct bnx2x_virtf *vf,
888 struct bnx2x_vfop_cmd *cmd,
889 struct bnx2x_vfop_filters *vlans,
890 int qid, bool drv_only)
891 {
892 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
893 int rc;
894
895 if (vfop) {
896 struct bnx2x_vfop_args_filters filters = {
897 .multi_filter = vlans,
898 .credit = &bnx2x_vfq(vf, qid, vlan_count),
899 };
900 struct bnx2x_vfop_vlan_mac_flags flags = {
901 .drv_only = drv_only,
902 .dont_consume = (filters.credit != NULL),
903 .single_cmd = false,
904 .add = false, /* don't care */
905 };
906 struct bnx2x_vlan_mac_ramrod_params *ramrod =
907 &vf->op_params.vlan_mac;
908
909 /* set ramrod params */
910 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
911
912 /* set object */
913 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
914 if (rc)
915 return rc;
916 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
917
918 /* set extra args */
919 filters.multi_filter->add_cnt = vf_vlan_rules_cnt(vf) -
920 atomic_read(filters.credit);
921
922 vfop->args.filters = filters;
923
924 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_CONFIG_LIST,
925 bnx2x_vfop_vlan_mac, cmd->done);
926 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
927 cmd->block);
928 }
929 return -ENOMEM;
930 }
931
932 /* VFOP queue setup (queue constructor + set vlan 0) */
933 static void bnx2x_vfop_qsetup(struct bnx2x *bp, struct bnx2x_virtf *vf)
934 {
935 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
936 int qid = vfop->args.qctor.qid;
937 enum bnx2x_vfop_qsetup_state state = vfop->state;
938 struct bnx2x_vfop_cmd cmd = {
939 .done = bnx2x_vfop_qsetup,
940 .block = false,
941 };
942
943 if (vfop->rc < 0)
944 goto op_err;
945
946 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
947
948 switch (state) {
949 case BNX2X_VFOP_QSETUP_CTOR:
950 /* init the queue ctor command */
951 vfop->state = BNX2X_VFOP_QSETUP_VLAN0;
952 vfop->rc = bnx2x_vfop_qctor_cmd(bp, vf, &cmd, qid);
953 if (vfop->rc)
954 goto op_err;
955 return;
956
957 case BNX2X_VFOP_QSETUP_VLAN0:
958 /* skip if non-leading or FPGA/EMU*/
959 if (qid)
960 goto op_done;
961
962 /* init the queue set-vlan command (for vlan 0) */
963 vfop->state = BNX2X_VFOP_QSETUP_DONE;
964 vfop->rc = bnx2x_vfop_vlan_set_cmd(bp, vf, &cmd, qid, 0, true);
965 if (vfop->rc)
966 goto op_err;
967 return;
968 op_err:
969 BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, vfop->rc);
970 op_done:
971 case BNX2X_VFOP_QSETUP_DONE:
972 vf->cfg_flags |= VF_CFG_VLAN;
973 smp_mb__before_clear_bit();
974 set_bit(BNX2X_SP_RTNL_HYPERVISOR_VLAN,
975 &bp->sp_rtnl_state);
976 smp_mb__after_clear_bit();
977 schedule_delayed_work(&bp->sp_rtnl_task, 0);
978 bnx2x_vfop_end(bp, vf, vfop);
979 return;
980 default:
981 bnx2x_vfop_default(state);
982 }
983 }
984
985 int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp,
986 struct bnx2x_virtf *vf,
987 struct bnx2x_vfop_cmd *cmd,
988 int qid)
989 {
990 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
991
992 if (vfop) {
993 vfop->args.qctor.qid = qid;
994
995 bnx2x_vfop_opset(BNX2X_VFOP_QSETUP_CTOR,
996 bnx2x_vfop_qsetup, cmd->done);
997 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qsetup,
998 cmd->block);
999 }
1000 return -ENOMEM;
1001 }
1002
1003 /* VFOP queue FLR handling (clear vlans, clear macs, queue destructor) */
1004 static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1005 {
1006 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1007 int qid = vfop->args.qx.qid;
1008 enum bnx2x_vfop_qflr_state state = vfop->state;
1009 struct bnx2x_queue_state_params *qstate;
1010 struct bnx2x_vfop_cmd cmd;
1011
1012 bnx2x_vfop_reset_wq(vf);
1013
1014 if (vfop->rc < 0)
1015 goto op_err;
1016
1017 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %d\n", vf->abs_vfid, state);
1018
1019 cmd.done = bnx2x_vfop_qflr;
1020 cmd.block = false;
1021
1022 switch (state) {
1023 case BNX2X_VFOP_QFLR_CLR_VLAN:
1024 /* vlan-clear-all: driver-only, don't consume credit */
1025 vfop->state = BNX2X_VFOP_QFLR_CLR_MAC;
1026 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj)))
1027 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid,
1028 true);
1029 if (vfop->rc)
1030 goto op_err;
1031 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1032
1033 case BNX2X_VFOP_QFLR_CLR_MAC:
1034 /* mac-clear-all: driver only consume credit */
1035 vfop->state = BNX2X_VFOP_QFLR_TERMINATE;
1036 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj)))
1037 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid,
1038 true);
1039 DP(BNX2X_MSG_IOV,
1040 "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d",
1041 vf->abs_vfid, vfop->rc);
1042 if (vfop->rc)
1043 goto op_err;
1044 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1045
1046 case BNX2X_VFOP_QFLR_TERMINATE:
1047 qstate = &vfop->op_p->qctor.qstate;
1048 memset(qstate , 0, sizeof(*qstate));
1049 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
1050 vfop->state = BNX2X_VFOP_QFLR_DONE;
1051
1052 DP(BNX2X_MSG_IOV, "VF[%d] qstate during flr was %d\n",
1053 vf->abs_vfid, qstate->q_obj->state);
1054
1055 if (qstate->q_obj->state != BNX2X_Q_STATE_RESET) {
1056 qstate->q_obj->state = BNX2X_Q_STATE_STOPPED;
1057 qstate->cmd = BNX2X_Q_CMD_TERMINATE;
1058 vfop->rc = bnx2x_queue_state_change(bp, qstate);
1059 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_VERIFY_PEND);
1060 } else {
1061 goto op_done;
1062 }
1063
1064 op_err:
1065 BNX2X_ERR("QFLR[%d:%d] error: rc %d\n",
1066 vf->abs_vfid, qid, vfop->rc);
1067 op_done:
1068 case BNX2X_VFOP_QFLR_DONE:
1069 bnx2x_vfop_end(bp, vf, vfop);
1070 return;
1071 default:
1072 bnx2x_vfop_default(state);
1073 }
1074 op_pending:
1075 return;
1076 }
1077
1078 static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp,
1079 struct bnx2x_virtf *vf,
1080 struct bnx2x_vfop_cmd *cmd,
1081 int qid)
1082 {
1083 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1084
1085 if (vfop) {
1086 vfop->args.qx.qid = qid;
1087 bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN,
1088 bnx2x_vfop_qflr, cmd->done);
1089 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr,
1090 cmd->block);
1091 }
1092 return -ENOMEM;
1093 }
1094
1095 /* VFOP multi-casts */
1096 static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf)
1097 {
1098 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1099 struct bnx2x_mcast_ramrod_params *mcast = &vfop->op_p->mcast;
1100 struct bnx2x_raw_obj *raw = &mcast->mcast_obj->raw;
1101 struct bnx2x_vfop_args_mcast *args = &vfop->args.mc_list;
1102 enum bnx2x_vfop_mcast_state state = vfop->state;
1103 int i;
1104
1105 bnx2x_vfop_reset_wq(vf);
1106
1107 if (vfop->rc < 0)
1108 goto op_err;
1109
1110 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1111
1112 switch (state) {
1113 case BNX2X_VFOP_MCAST_DEL:
1114 /* clear existing mcasts */
1115 vfop->state = BNX2X_VFOP_MCAST_ADD;
1116 vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL);
1117 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1118
1119 case BNX2X_VFOP_MCAST_ADD:
1120 if (raw->check_pending(raw))
1121 goto op_pending;
1122
1123 if (args->mc_num) {
1124 /* update mcast list on the ramrod params */
1125 INIT_LIST_HEAD(&mcast->mcast_list);
1126 for (i = 0; i < args->mc_num; i++)
1127 list_add_tail(&(args->mc[i].link),
1128 &mcast->mcast_list);
1129 /* add new mcasts */
1130 vfop->state = BNX2X_VFOP_MCAST_CHK_DONE;
1131 vfop->rc = bnx2x_config_mcast(bp, mcast,
1132 BNX2X_MCAST_CMD_ADD);
1133 }
1134 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1135
1136 case BNX2X_VFOP_MCAST_CHK_DONE:
1137 vfop->rc = raw->check_pending(raw) ? 1 : 0;
1138 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1139 default:
1140 bnx2x_vfop_default(state);
1141 }
1142 op_err:
1143 BNX2X_ERR("MCAST CONFIG error: rc %d\n", vfop->rc);
1144 op_done:
1145 kfree(args->mc);
1146 bnx2x_vfop_end(bp, vf, vfop);
1147 op_pending:
1148 return;
1149 }
1150
1151 int bnx2x_vfop_mcast_cmd(struct bnx2x *bp,
1152 struct bnx2x_virtf *vf,
1153 struct bnx2x_vfop_cmd *cmd,
1154 bnx2x_mac_addr_t *mcasts,
1155 int mcast_num, bool drv_only)
1156 {
1157 struct bnx2x_vfop *vfop = NULL;
1158 size_t mc_sz = mcast_num * sizeof(struct bnx2x_mcast_list_elem);
1159 struct bnx2x_mcast_list_elem *mc = mc_sz ? kzalloc(mc_sz, GFP_KERNEL) :
1160 NULL;
1161
1162 if (!mc_sz || mc) {
1163 vfop = bnx2x_vfop_add(bp, vf);
1164 if (vfop) {
1165 int i;
1166 struct bnx2x_mcast_ramrod_params *ramrod =
1167 &vf->op_params.mcast;
1168
1169 /* set ramrod params */
1170 memset(ramrod, 0, sizeof(*ramrod));
1171 ramrod->mcast_obj = &vf->mcast_obj;
1172 if (drv_only)
1173 set_bit(RAMROD_DRV_CLR_ONLY,
1174 &ramrod->ramrod_flags);
1175
1176 /* copy mcasts pointers */
1177 vfop->args.mc_list.mc_num = mcast_num;
1178 vfop->args.mc_list.mc = mc;
1179 for (i = 0; i < mcast_num; i++)
1180 mc[i].mac = mcasts[i];
1181
1182 bnx2x_vfop_opset(BNX2X_VFOP_MCAST_DEL,
1183 bnx2x_vfop_mcast, cmd->done);
1184 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mcast,
1185 cmd->block);
1186 } else {
1187 kfree(mc);
1188 }
1189 }
1190 return -ENOMEM;
1191 }
1192
1193 /* VFOP rx-mode */
1194 static void bnx2x_vfop_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf)
1195 {
1196 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1197 struct bnx2x_rx_mode_ramrod_params *ramrod = &vfop->op_p->rx_mode;
1198 enum bnx2x_vfop_rxmode_state state = vfop->state;
1199
1200 bnx2x_vfop_reset_wq(vf);
1201
1202 if (vfop->rc < 0)
1203 goto op_err;
1204
1205 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1206
1207 switch (state) {
1208 case BNX2X_VFOP_RXMODE_CONFIG:
1209 /* next state */
1210 vfop->state = BNX2X_VFOP_RXMODE_DONE;
1211
1212 vfop->rc = bnx2x_config_rx_mode(bp, ramrod);
1213 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1214 op_err:
1215 BNX2X_ERR("RXMODE error: rc %d\n", vfop->rc);
1216 op_done:
1217 case BNX2X_VFOP_RXMODE_DONE:
1218 bnx2x_vfop_end(bp, vf, vfop);
1219 return;
1220 default:
1221 bnx2x_vfop_default(state);
1222 }
1223 op_pending:
1224 return;
1225 }
1226
1227 int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp,
1228 struct bnx2x_virtf *vf,
1229 struct bnx2x_vfop_cmd *cmd,
1230 int qid, unsigned long accept_flags)
1231 {
1232 struct bnx2x_vf_queue *vfq = vfq_get(vf, qid);
1233 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1234
1235 if (vfop) {
1236 struct bnx2x_rx_mode_ramrod_params *ramrod =
1237 &vf->op_params.rx_mode;
1238
1239 memset(ramrod, 0, sizeof(*ramrod));
1240
1241 /* Prepare ramrod parameters */
1242 ramrod->cid = vfq->cid;
1243 ramrod->cl_id = vfq_cl_id(vf, vfq);
1244 ramrod->rx_mode_obj = &bp->rx_mode_obj;
1245 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid);
1246
1247 ramrod->rx_accept_flags = accept_flags;
1248 ramrod->tx_accept_flags = accept_flags;
1249 ramrod->pstate = &vf->filter_state;
1250 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING;
1251
1252 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
1253 set_bit(RAMROD_RX, &ramrod->ramrod_flags);
1254 set_bit(RAMROD_TX, &ramrod->ramrod_flags);
1255
1256 ramrod->rdata =
1257 bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2);
1258 ramrod->rdata_mapping =
1259 bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2);
1260
1261 bnx2x_vfop_opset(BNX2X_VFOP_RXMODE_CONFIG,
1262 bnx2x_vfop_rxmode, cmd->done);
1263 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rxmode,
1264 cmd->block);
1265 }
1266 return -ENOMEM;
1267 }
1268
1269 /* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs,
1270 * queue destructor)
1271 */
1272 static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf)
1273 {
1274 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1275 int qid = vfop->args.qx.qid;
1276 enum bnx2x_vfop_qteardown_state state = vfop->state;
1277 struct bnx2x_vfop_cmd cmd;
1278
1279 if (vfop->rc < 0)
1280 goto op_err;
1281
1282 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1283
1284 cmd.done = bnx2x_vfop_qdown;
1285 cmd.block = false;
1286
1287 switch (state) {
1288 case BNX2X_VFOP_QTEARDOWN_RXMODE:
1289 /* Drop all */
1290 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN;
1291 vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0);
1292 if (vfop->rc)
1293 goto op_err;
1294 return;
1295
1296 case BNX2X_VFOP_QTEARDOWN_CLR_VLAN:
1297 /* vlan-clear-all: don't consume credit */
1298 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC;
1299 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false);
1300 if (vfop->rc)
1301 goto op_err;
1302 return;
1303
1304 case BNX2X_VFOP_QTEARDOWN_CLR_MAC:
1305 /* mac-clear-all: consume credit */
1306 vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
1307 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false);
1308 if (vfop->rc)
1309 goto op_err;
1310 return;
1311
1312 case BNX2X_VFOP_QTEARDOWN_QDTOR:
1313 /* run the queue destruction flow */
1314 DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n");
1315 vfop->state = BNX2X_VFOP_QTEARDOWN_DONE;
1316 DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n");
1317 vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid);
1318 DP(BNX2X_MSG_IOV, "returned from cmd\n");
1319 if (vfop->rc)
1320 goto op_err;
1321 return;
1322 op_err:
1323 BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n",
1324 vf->abs_vfid, qid, vfop->rc);
1325
1326 case BNX2X_VFOP_QTEARDOWN_DONE:
1327 bnx2x_vfop_end(bp, vf, vfop);
1328 return;
1329 default:
1330 bnx2x_vfop_default(state);
1331 }
1332 }
1333
1334 int bnx2x_vfop_qdown_cmd(struct bnx2x *bp,
1335 struct bnx2x_virtf *vf,
1336 struct bnx2x_vfop_cmd *cmd,
1337 int qid)
1338 {
1339 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1340
1341 /* for non leading queues skip directly to qdown sate */
1342 if (vfop) {
1343 vfop->args.qx.qid = qid;
1344 bnx2x_vfop_opset(qid == LEADING_IDX ?
1345 BNX2X_VFOP_QTEARDOWN_RXMODE :
1346 BNX2X_VFOP_QTEARDOWN_QDTOR, bnx2x_vfop_qdown,
1347 cmd->done);
1348 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown,
1349 cmd->block);
1350 }
1351
1352 return -ENOMEM;
1353 }
1354
1355 /* VF enable primitives
1356 * when pretend is required the caller is responsible
1357 * for calling pretend prior to calling these routines
1358 */
1359
1360 /* internal vf enable - until vf is enabled internally all transactions
1361 * are blocked. This routine should always be called last with pretend.
1362 */
1363 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
1364 {
1365 REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0);
1366 }
1367
1368 /* clears vf error in all semi blocks */
1369 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid)
1370 {
1371 REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid);
1372 REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid);
1373 REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid);
1374 REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid);
1375 }
1376
1377 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid)
1378 {
1379 u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5;
1380 u32 was_err_reg = 0;
1381
1382 switch (was_err_group) {
1383 case 0:
1384 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR;
1385 break;
1386 case 1:
1387 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR;
1388 break;
1389 case 2:
1390 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR;
1391 break;
1392 case 3:
1393 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR;
1394 break;
1395 }
1396 REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f));
1397 }
1398
1399 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
1400 {
1401 int i;
1402 u32 val;
1403
1404 /* Set VF masks and configuration - pretend */
1405 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1406
1407 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
1408 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
1409 REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
1410 REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
1411 REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
1412 REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
1413
1414 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
1415 val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN);
1416 if (vf->cfg_flags & VF_CFG_INT_SIMD)
1417 val |= IGU_VF_CONF_SINGLE_ISR_EN;
1418 val &= ~IGU_VF_CONF_PARENT_MASK;
1419 val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */
1420 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
1421
1422 DP(BNX2X_MSG_IOV,
1423 "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n",
1424 vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION));
1425
1426 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1427
1428 /* iterate over all queues, clear sb consumer */
1429 for (i = 0; i < vf_sb_count(vf); i++) {
1430 u8 igu_sb_id = vf_igu_sb(vf, i);
1431
1432 /* zero prod memory */
1433 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0);
1434
1435 /* clear sb state machine */
1436 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id,
1437 false /* VF */);
1438
1439 /* disable + update */
1440 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0,
1441 IGU_INT_DISABLE, 1);
1442 }
1443 }
1444
1445 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
1446 {
1447 /* set the VF-PF association in the FW */
1448 storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
1449 storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
1450
1451 /* clear vf errors*/
1452 bnx2x_vf_semi_clear_err(bp, abs_vfid);
1453 bnx2x_vf_pglue_clear_err(bp, abs_vfid);
1454
1455 /* internal vf-enable - pretend */
1456 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid));
1457 DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid);
1458 bnx2x_vf_enable_internal(bp, true);
1459 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1460 }
1461
1462 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)
1463 {
1464 /* Reset vf in IGU interrupts are still disabled */
1465 bnx2x_vf_igu_reset(bp, vf);
1466
1467 /* pretend to enable the vf with the PBF */
1468 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1469 REG_WR(bp, PBF_REG_DISABLE_VF, 0);
1470 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1471 }
1472
1473 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
1474 {
1475 struct pci_dev *dev;
1476 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
1477
1478 if (!vf)
1479 return false;
1480
1481 dev = pci_get_bus_and_slot(vf->bus, vf->devfn);
1482 if (dev)
1483 return bnx2x_is_pcie_pending(dev);
1484 return false;
1485 }
1486
1487 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
1488 {
1489 /* Verify no pending pci transactions */
1490 if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
1491 BNX2X_ERR("PCIE Transactions still pending\n");
1492
1493 return 0;
1494 }
1495
1496 /* must be called after the number of PF queues and the number of VFs are
1497 * both known
1498 */
1499 static void
1500 bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1501 {
1502 struct vf_pf_resc_request *resc = &vf->alloc_resc;
1503 u16 vlan_count = 0;
1504
1505 /* will be set only during VF-ACQUIRE */
1506 resc->num_rxqs = 0;
1507 resc->num_txqs = 0;
1508
1509 /* no credit calculations for macs (just yet) */
1510 resc->num_mac_filters = 1;
1511
1512 /* divvy up vlan rules */
1513 vlan_count = bp->vlans_pool.check(&bp->vlans_pool);
1514 vlan_count = 1 << ilog2(vlan_count);
1515 resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp);
1516
1517 /* no real limitation */
1518 resc->num_mc_filters = 0;
1519
1520 /* num_sbs already set */
1521 resc->num_sbs = vf->sb_count;
1522 }
1523
1524 /* FLR routines: */
1525 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1526 {
1527 /* reset the state variables */
1528 bnx2x_iov_static_resc(bp, vf);
1529 vf->state = VF_FREE;
1530 }
1531
1532 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf)
1533 {
1534 u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
1535
1536 /* DQ usage counter */
1537 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1538 bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT,
1539 "DQ VF usage counter timed out",
1540 poll_cnt);
1541 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1542
1543 /* FW cleanup command - poll for the results */
1544 if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid),
1545 poll_cnt))
1546 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid);
1547
1548 /* verify TX hw is flushed */
1549 bnx2x_tx_hw_flushed(bp, poll_cnt);
1550 }
1551
1552 static void bnx2x_vfop_flr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1553 {
1554 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1555 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
1556 enum bnx2x_vfop_flr_state state = vfop->state;
1557 struct bnx2x_vfop_cmd cmd = {
1558 .done = bnx2x_vfop_flr,
1559 .block = false,
1560 };
1561
1562 if (vfop->rc < 0)
1563 goto op_err;
1564
1565 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1566
1567 switch (state) {
1568 case BNX2X_VFOP_FLR_QUEUES:
1569 /* the cleanup operations are valid if and only if the VF
1570 * was first acquired.
1571 */
1572 if (++(qx->qid) < vf_rxq_count(vf)) {
1573 vfop->rc = bnx2x_vfop_qflr_cmd(bp, vf, &cmd,
1574 qx->qid);
1575 if (vfop->rc)
1576 goto op_err;
1577 return;
1578 }
1579 /* remove multicasts */
1580 vfop->state = BNX2X_VFOP_FLR_HW;
1581 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL,
1582 0, true);
1583 if (vfop->rc)
1584 goto op_err;
1585 return;
1586 case BNX2X_VFOP_FLR_HW:
1587
1588 /* dispatch final cleanup and wait for HW queues to flush */
1589 bnx2x_vf_flr_clnup_hw(bp, vf);
1590
1591 /* release VF resources */
1592 bnx2x_vf_free_resc(bp, vf);
1593
1594 /* re-open the mailbox */
1595 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
1596
1597 goto op_done;
1598 default:
1599 bnx2x_vfop_default(state);
1600 }
1601 op_err:
1602 BNX2X_ERR("VF[%d] FLR error: rc %d\n", vf->abs_vfid, vfop->rc);
1603 op_done:
1604 vf->flr_clnup_stage = VF_FLR_ACK;
1605 bnx2x_vfop_end(bp, vf, vfop);
1606 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1607 }
1608
1609 static int bnx2x_vfop_flr_cmd(struct bnx2x *bp,
1610 struct bnx2x_virtf *vf,
1611 vfop_handler_t done)
1612 {
1613 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1614 if (vfop) {
1615 vfop->args.qx.qid = -1; /* loop */
1616 bnx2x_vfop_opset(BNX2X_VFOP_FLR_QUEUES,
1617 bnx2x_vfop_flr, done);
1618 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_flr, false);
1619 }
1620 return -ENOMEM;
1621 }
1622
1623 static void bnx2x_vf_flr_clnup(struct bnx2x *bp, struct bnx2x_virtf *prev_vf)
1624 {
1625 int i = prev_vf ? prev_vf->index + 1 : 0;
1626 struct bnx2x_virtf *vf;
1627
1628 /* find next VF to cleanup */
1629 next_vf_to_clean:
1630 for (;
1631 i < BNX2X_NR_VIRTFN(bp) &&
1632 (bnx2x_vf(bp, i, state) != VF_RESET ||
1633 bnx2x_vf(bp, i, flr_clnup_stage) != VF_FLR_CLN);
1634 i++)
1635 ;
1636
1637 DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n", i,
1638 BNX2X_NR_VIRTFN(bp));
1639
1640 if (i < BNX2X_NR_VIRTFN(bp)) {
1641 vf = BP_VF(bp, i);
1642
1643 /* lock the vf pf channel */
1644 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1645
1646 /* invoke the VF FLR SM */
1647 if (bnx2x_vfop_flr_cmd(bp, vf, bnx2x_vf_flr_clnup)) {
1648 BNX2X_ERR("VF[%d]: FLR cleanup failed -ENOMEM\n",
1649 vf->abs_vfid);
1650
1651 /* mark the VF to be ACKED and continue */
1652 vf->flr_clnup_stage = VF_FLR_ACK;
1653 goto next_vf_to_clean;
1654 }
1655 return;
1656 }
1657
1658 /* we are done, update vf records */
1659 for_each_vf(bp, i) {
1660 vf = BP_VF(bp, i);
1661
1662 if (vf->flr_clnup_stage != VF_FLR_ACK)
1663 continue;
1664
1665 vf->flr_clnup_stage = VF_FLR_EPILOG;
1666 }
1667
1668 /* Acknowledge the handled VFs.
1669 * we are acknowledge all the vfs which an flr was requested for, even
1670 * if amongst them there are such that we never opened, since the mcp
1671 * will interrupt us immediately again if we only ack some of the bits,
1672 * resulting in an endless loop. This can happen for example in KVM
1673 * where an 'all ones' flr request is sometimes given by hyper visor
1674 */
1675 DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n",
1676 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1677 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1678 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i],
1679 bp->vfdb->flrd_vfs[i]);
1680
1681 bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0);
1682
1683 /* clear the acked bits - better yet if the MCP implemented
1684 * write to clear semantics
1685 */
1686 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1687 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0);
1688 }
1689
1690 void bnx2x_vf_handle_flr_event(struct bnx2x *bp)
1691 {
1692 int i;
1693
1694 /* Read FLR'd VFs */
1695 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1696 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]);
1697
1698 DP(BNX2X_MSG_MCP,
1699 "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n",
1700 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1701
1702 for_each_vf(bp, i) {
1703 struct bnx2x_virtf *vf = BP_VF(bp, i);
1704 u32 reset = 0;
1705
1706 if (vf->abs_vfid < 32)
1707 reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid);
1708 else
1709 reset = bp->vfdb->flrd_vfs[1] &
1710 (1 << (vf->abs_vfid - 32));
1711
1712 if (reset) {
1713 /* set as reset and ready for cleanup */
1714 vf->state = VF_RESET;
1715 vf->flr_clnup_stage = VF_FLR_CLN;
1716
1717 DP(BNX2X_MSG_IOV,
1718 "Initiating Final cleanup for VF %d\n",
1719 vf->abs_vfid);
1720 }
1721 }
1722
1723 /* do the FLR cleanup for all marked VFs*/
1724 bnx2x_vf_flr_clnup(bp, NULL);
1725 }
1726
1727 /* IOV global initialization routines */
1728 void bnx2x_iov_init_dq(struct bnx2x *bp)
1729 {
1730 if (!IS_SRIOV(bp))
1731 return;
1732
1733 /* Set the DQ such that the CID reflect the abs_vfid */
1734 REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0);
1735 REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS));
1736
1737 /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to
1738 * the PF L2 queues
1739 */
1740 REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID);
1741
1742 /* The VF window size is the log2 of the max number of CIDs per VF */
1743 REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND);
1744
1745 /* The VF doorbell size 0 - *B, 4 - 128B. We set it here to match
1746 * the Pf doorbell size although the 2 are independent.
1747 */
1748 REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST, 3);
1749
1750 /* No security checks for now -
1751 * configure single rule (out of 16) mask = 0x1, value = 0x0,
1752 * CID range 0 - 0x1ffff
1753 */
1754 REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1);
1755 REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0);
1756 REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0);
1757 REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff);
1758
1759 /* set the VF doorbell threshold */
1760 REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 4);
1761 }
1762
1763 void bnx2x_iov_init_dmae(struct bnx2x *bp)
1764 {
1765 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV))
1766 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
1767 }
1768
1769 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
1770 {
1771 struct pci_dev *dev = bp->pdev;
1772 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1773
1774 return dev->bus->number + ((dev->devfn + iov->offset +
1775 iov->stride * vfid) >> 8);
1776 }
1777
1778 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid)
1779 {
1780 struct pci_dev *dev = bp->pdev;
1781 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1782
1783 return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff;
1784 }
1785
1786 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf)
1787 {
1788 int i, n;
1789 struct pci_dev *dev = bp->pdev;
1790 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1791
1792 for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) {
1793 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i);
1794 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i);
1795
1796 size /= iov->total;
1797 vf->bars[n].bar = start + size * vf->abs_vfid;
1798 vf->bars[n].size = size;
1799 }
1800 }
1801
1802 static int bnx2x_ari_enabled(struct pci_dev *dev)
1803 {
1804 return dev->bus->self && dev->bus->self->ari_enabled;
1805 }
1806
1807 static void
1808 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
1809 {
1810 int sb_id;
1811 u32 val;
1812 u8 fid, current_pf = 0;
1813
1814 /* IGU in normal mode - read CAM */
1815 for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) {
1816 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4);
1817 if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
1818 continue;
1819 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
1820 if (fid & IGU_FID_ENCODE_IS_PF)
1821 current_pf = fid & IGU_FID_PF_NUM_MASK;
1822 else if (current_pf == BP_FUNC(bp))
1823 bnx2x_vf_set_igu_info(bp, sb_id,
1824 (fid & IGU_FID_VF_NUM_MASK));
1825 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
1826 ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"),
1827 ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) :
1828 (fid & IGU_FID_VF_NUM_MASK)), sb_id,
1829 GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR));
1830 }
1831 DP(BNX2X_MSG_IOV, "vf_sbs_pool is %d\n", BP_VFDB(bp)->vf_sbs_pool);
1832 }
1833
1834 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp)
1835 {
1836 if (bp->vfdb) {
1837 kfree(bp->vfdb->vfqs);
1838 kfree(bp->vfdb->vfs);
1839 kfree(bp->vfdb);
1840 }
1841 bp->vfdb = NULL;
1842 }
1843
1844 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1845 {
1846 int pos;
1847 struct pci_dev *dev = bp->pdev;
1848
1849 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
1850 if (!pos) {
1851 BNX2X_ERR("failed to find SRIOV capability in device\n");
1852 return -ENODEV;
1853 }
1854
1855 iov->pos = pos;
1856 DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos);
1857 pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
1858 pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total);
1859 pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial);
1860 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
1861 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
1862 pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
1863 pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
1864 pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
1865
1866 return 0;
1867 }
1868
1869 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1870 {
1871 u32 val;
1872
1873 /* read the SRIOV capability structure
1874 * The fields can be read via configuration read or
1875 * directly from the device (starting at offset PCICFG_OFFSET)
1876 */
1877 if (bnx2x_sriov_pci_cfg_info(bp, iov))
1878 return -ENODEV;
1879
1880 /* get the number of SRIOV bars */
1881 iov->nres = 0;
1882
1883 /* read the first_vfid */
1884 val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF);
1885 iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK)
1886 * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp));
1887
1888 DP(BNX2X_MSG_IOV,
1889 "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",
1890 BP_FUNC(bp),
1891 iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total,
1892 iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
1893
1894 return 0;
1895 }
1896
1897 /* must be called after PF bars are mapped */
1898 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
1899 int num_vfs_param)
1900 {
1901 int err, i;
1902 struct bnx2x_sriov *iov;
1903 struct pci_dev *dev = bp->pdev;
1904
1905 bp->vfdb = NULL;
1906
1907 /* verify is pf */
1908 if (IS_VF(bp))
1909 return 0;
1910
1911 /* verify sriov capability is present in configuration space */
1912 if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV))
1913 return 0;
1914
1915 /* verify chip revision */
1916 if (CHIP_IS_E1x(bp))
1917 return 0;
1918
1919 /* check if SRIOV support is turned off */
1920 if (!num_vfs_param)
1921 return 0;
1922
1923 /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */
1924 if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) {
1925 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n",
1926 BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID);
1927 return 0;
1928 }
1929
1930 /* SRIOV can be enabled only with MSIX */
1931 if (int_mode_param == BNX2X_INT_MODE_MSI ||
1932 int_mode_param == BNX2X_INT_MODE_INTX) {
1933 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n");
1934 return 0;
1935 }
1936
1937 err = -EIO;
1938 /* verify ari is enabled */
1939 if (!bnx2x_ari_enabled(bp->pdev)) {
1940 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n");
1941 return 0;
1942 }
1943
1944 /* verify igu is in normal mode */
1945 if (CHIP_INT_MODE_IS_BC(bp)) {
1946 BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n");
1947 return 0;
1948 }
1949
1950 /* allocate the vfs database */
1951 bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL);
1952 if (!bp->vfdb) {
1953 BNX2X_ERR("failed to allocate vf database\n");
1954 err = -ENOMEM;
1955 goto failed;
1956 }
1957
1958 /* get the sriov info - Linux already collected all the pertinent
1959 * information, however the sriov structure is for the private use
1960 * of the pci module. Also we want this information regardless
1961 * of the hyper-visor.
1962 */
1963 iov = &(bp->vfdb->sriov);
1964 err = bnx2x_sriov_info(bp, iov);
1965 if (err)
1966 goto failed;
1967
1968 /* SR-IOV capability was enabled but there are no VFs*/
1969 if (iov->total == 0)
1970 goto failed;
1971
1972 iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param);
1973
1974 DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n",
1975 num_vfs_param, iov->nr_virtfn);
1976
1977 /* allocate the vf array */
1978 bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) *
1979 BNX2X_NR_VIRTFN(bp), GFP_KERNEL);
1980 if (!bp->vfdb->vfs) {
1981 BNX2X_ERR("failed to allocate vf array\n");
1982 err = -ENOMEM;
1983 goto failed;
1984 }
1985
1986 /* Initial VF init - index and abs_vfid - nr_virtfn must be set */
1987 for_each_vf(bp, i) {
1988 bnx2x_vf(bp, i, index) = i;
1989 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i;
1990 bnx2x_vf(bp, i, state) = VF_FREE;
1991 INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head));
1992 mutex_init(&bnx2x_vf(bp, i, op_mutex));
1993 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE;
1994 }
1995
1996 /* re-read the IGU CAM for VFs - index and abs_vfid must be set */
1997 bnx2x_get_vf_igu_cam_info(bp);
1998
1999 /* allocate the queue arrays for all VFs */
2000 bp->vfdb->vfqs = kzalloc(
2001 BNX2X_MAX_NUM_VF_QUEUES * sizeof(struct bnx2x_vf_queue),
2002 GFP_KERNEL);
2003
2004 DP(BNX2X_MSG_IOV, "bp->vfdb->vfqs was %p\n", bp->vfdb->vfqs);
2005
2006 if (!bp->vfdb->vfqs) {
2007 BNX2X_ERR("failed to allocate vf queue array\n");
2008 err = -ENOMEM;
2009 goto failed;
2010 }
2011
2012 return 0;
2013 failed:
2014 DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
2015 __bnx2x_iov_free_vfdb(bp);
2016 return err;
2017 }
2018
2019 void bnx2x_iov_remove_one(struct bnx2x *bp)
2020 {
2021 /* if SRIOV is not enabled there's nothing to do */
2022 if (!IS_SRIOV(bp))
2023 return;
2024
2025 DP(BNX2X_MSG_IOV, "about to call disable sriov\n");
2026 pci_disable_sriov(bp->pdev);
2027 DP(BNX2X_MSG_IOV, "sriov disabled\n");
2028
2029 /* free vf database */
2030 __bnx2x_iov_free_vfdb(bp);
2031 }
2032
2033 void bnx2x_iov_free_mem(struct bnx2x *bp)
2034 {
2035 int i;
2036
2037 if (!IS_SRIOV(bp))
2038 return;
2039
2040 /* free vfs hw contexts */
2041 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2042 struct hw_dma *cxt = &bp->vfdb->context[i];
2043 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size);
2044 }
2045
2046 BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr,
2047 BP_VFDB(bp)->sp_dma.mapping,
2048 BP_VFDB(bp)->sp_dma.size);
2049
2050 BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr,
2051 BP_VF_MBX_DMA(bp)->mapping,
2052 BP_VF_MBX_DMA(bp)->size);
2053
2054 BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr,
2055 BP_VF_BULLETIN_DMA(bp)->mapping,
2056 BP_VF_BULLETIN_DMA(bp)->size);
2057 }
2058
2059 int bnx2x_iov_alloc_mem(struct bnx2x *bp)
2060 {
2061 size_t tot_size;
2062 int i, rc = 0;
2063
2064 if (!IS_SRIOV(bp))
2065 return rc;
2066
2067 /* allocate vfs hw contexts */
2068 tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) *
2069 BNX2X_CIDS_PER_VF * sizeof(union cdu_context);
2070
2071 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2072 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i);
2073 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ);
2074
2075 if (cxt->size) {
2076 BNX2X_PCI_ALLOC(cxt->addr, &cxt->mapping, cxt->size);
2077 } else {
2078 cxt->addr = NULL;
2079 cxt->mapping = 0;
2080 }
2081 tot_size -= cxt->size;
2082 }
2083
2084 /* allocate vfs ramrods dma memory - client_init and set_mac */
2085 tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp);
2086 BNX2X_PCI_ALLOC(BP_VFDB(bp)->sp_dma.addr, &BP_VFDB(bp)->sp_dma.mapping,
2087 tot_size);
2088 BP_VFDB(bp)->sp_dma.size = tot_size;
2089
2090 /* allocate mailboxes */
2091 tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE;
2092 BNX2X_PCI_ALLOC(BP_VF_MBX_DMA(bp)->addr, &BP_VF_MBX_DMA(bp)->mapping,
2093 tot_size);
2094 BP_VF_MBX_DMA(bp)->size = tot_size;
2095
2096 /* allocate local bulletin boards */
2097 tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE;
2098 BNX2X_PCI_ALLOC(BP_VF_BULLETIN_DMA(bp)->addr,
2099 &BP_VF_BULLETIN_DMA(bp)->mapping, tot_size);
2100 BP_VF_BULLETIN_DMA(bp)->size = tot_size;
2101
2102 return 0;
2103
2104 alloc_mem_err:
2105 return -ENOMEM;
2106 }
2107
2108 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
2109 struct bnx2x_vf_queue *q)
2110 {
2111 u8 cl_id = vfq_cl_id(vf, q);
2112 u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
2113 unsigned long q_type = 0;
2114
2115 set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
2116 set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
2117
2118 /* Queue State object */
2119 bnx2x_init_queue_obj(bp, &q->sp_obj,
2120 cl_id, &q->cid, 1, func_id,
2121 bnx2x_vf_sp(bp, vf, q_data),
2122 bnx2x_vf_sp_map(bp, vf, q_data),
2123 q_type);
2124
2125 DP(BNX2X_MSG_IOV,
2126 "initialized vf %d's queue object. func id set to %d. cid set to 0x%x\n",
2127 vf->abs_vfid, q->sp_obj.func_id, q->cid);
2128 }
2129
2130 /* called by bnx2x_nic_load */
2131 int bnx2x_iov_nic_init(struct bnx2x *bp)
2132 {
2133 int vfid;
2134
2135 if (!IS_SRIOV(bp)) {
2136 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n");
2137 return 0;
2138 }
2139
2140 DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn);
2141
2142 /* let FLR complete ... */
2143 msleep(100);
2144
2145 /* initialize vf database */
2146 for_each_vf(bp, vfid) {
2147 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2148
2149 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) *
2150 BNX2X_CIDS_PER_VF;
2151
2152 union cdu_context *base_cxt = (union cdu_context *)
2153 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2154 (base_vf_cid & (ILT_PAGE_CIDS-1));
2155
2156 DP(BNX2X_MSG_IOV,
2157 "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n",
2158 vf->abs_vfid, vf_sb_count(vf), base_vf_cid,
2159 BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt);
2160
2161 /* init statically provisioned resources */
2162 bnx2x_iov_static_resc(bp, vf);
2163
2164 /* queues are initialized during VF-ACQUIRE */
2165
2166 /* reserve the vf vlan credit */
2167 bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf));
2168
2169 vf->filter_state = 0;
2170 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id);
2171
2172 /* init mcast object - This object will be re-initialized
2173 * during VF-ACQUIRE with the proper cl_id and cid.
2174 * It needs to be initialized here so that it can be safely
2175 * handled by a subsequent FLR flow.
2176 */
2177 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF,
2178 0xFF, 0xFF, 0xFF,
2179 bnx2x_vf_sp(bp, vf, mcast_rdata),
2180 bnx2x_vf_sp_map(bp, vf, mcast_rdata),
2181 BNX2X_FILTER_MCAST_PENDING,
2182 &vf->filter_state,
2183 BNX2X_OBJ_TYPE_RX_TX);
2184
2185 /* set the mailbox message addresses */
2186 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *)
2187 (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid *
2188 MBX_MSG_ALIGNED_SIZE);
2189
2190 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping +
2191 vfid * MBX_MSG_ALIGNED_SIZE;
2192
2193 /* Enable vf mailbox */
2194 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
2195 }
2196
2197 /* Final VF init */
2198 for_each_vf(bp, vfid) {
2199 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2200
2201 /* fill in the BDF and bars */
2202 vf->bus = bnx2x_vf_bus(bp, vfid);
2203 vf->devfn = bnx2x_vf_devfn(bp, vfid);
2204 bnx2x_vf_set_bars(bp, vf);
2205
2206 DP(BNX2X_MSG_IOV,
2207 "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n",
2208 vf->abs_vfid, vf->bus, vf->devfn,
2209 (unsigned)vf->bars[0].bar, vf->bars[0].size,
2210 (unsigned)vf->bars[1].bar, vf->bars[1].size,
2211 (unsigned)vf->bars[2].bar, vf->bars[2].size);
2212 }
2213
2214 return 0;
2215 }
2216
2217 /* called by bnx2x_chip_cleanup */
2218 int bnx2x_iov_chip_cleanup(struct bnx2x *bp)
2219 {
2220 int i;
2221
2222 if (!IS_SRIOV(bp))
2223 return 0;
2224
2225 /* release all the VFs */
2226 for_each_vf(bp, i)
2227 bnx2x_vf_release(bp, BP_VF(bp, i), true); /* blocking */
2228
2229 return 0;
2230 }
2231
2232 /* called by bnx2x_init_hw_func, returns the next ilt line */
2233 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line)
2234 {
2235 int i;
2236 struct bnx2x_ilt *ilt = BP_ILT(bp);
2237
2238 if (!IS_SRIOV(bp))
2239 return line;
2240
2241 /* set vfs ilt lines */
2242 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2243 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i);
2244
2245 ilt->lines[line+i].page = hw_cxt->addr;
2246 ilt->lines[line+i].page_mapping = hw_cxt->mapping;
2247 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */
2248 }
2249 return line + i;
2250 }
2251
2252 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid)
2253 {
2254 return ((cid >= BNX2X_FIRST_VF_CID) &&
2255 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS));
2256 }
2257
2258 static
2259 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp,
2260 struct bnx2x_vf_queue *vfq,
2261 union event_ring_elem *elem)
2262 {
2263 unsigned long ramrod_flags = 0;
2264 int rc = 0;
2265
2266 /* Always push next commands out, don't wait here */
2267 set_bit(RAMROD_CONT, &ramrod_flags);
2268
2269 switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) {
2270 case BNX2X_FILTER_MAC_PENDING:
2271 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem,
2272 &ramrod_flags);
2273 break;
2274 case BNX2X_FILTER_VLAN_PENDING:
2275 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem,
2276 &ramrod_flags);
2277 break;
2278 default:
2279 BNX2X_ERR("Unsupported classification command: %d\n",
2280 elem->message.data.eth_event.echo);
2281 return;
2282 }
2283 if (rc < 0)
2284 BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
2285 else if (rc > 0)
2286 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n");
2287 }
2288
2289 static
2290 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp,
2291 struct bnx2x_virtf *vf)
2292 {
2293 struct bnx2x_mcast_ramrod_params rparam = {NULL};
2294 int rc;
2295
2296 rparam.mcast_obj = &vf->mcast_obj;
2297 vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw);
2298
2299 /* If there are pending mcast commands - send them */
2300 if (vf->mcast_obj.check_pending(&vf->mcast_obj)) {
2301 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
2302 if (rc < 0)
2303 BNX2X_ERR("Failed to send pending mcast commands: %d\n",
2304 rc);
2305 }
2306 }
2307
2308 static
2309 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp,
2310 struct bnx2x_virtf *vf)
2311 {
2312 smp_mb__before_clear_bit();
2313 clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
2314 smp_mb__after_clear_bit();
2315 }
2316
2317 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
2318 {
2319 struct bnx2x_virtf *vf;
2320 int qidx = 0, abs_vfid;
2321 u8 opcode;
2322 u16 cid = 0xffff;
2323
2324 if (!IS_SRIOV(bp))
2325 return 1;
2326
2327 /* first get the cid - the only events we handle here are cfc-delete
2328 * and set-mac completion
2329 */
2330 opcode = elem->message.opcode;
2331
2332 switch (opcode) {
2333 case EVENT_RING_OPCODE_CFC_DEL:
2334 cid = SW_CID((__force __le32)
2335 elem->message.data.cfc_del_event.cid);
2336 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid);
2337 break;
2338 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2339 case EVENT_RING_OPCODE_MULTICAST_RULES:
2340 case EVENT_RING_OPCODE_FILTERS_RULES:
2341 cid = (elem->message.data.eth_event.echo &
2342 BNX2X_SWCID_MASK);
2343 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid);
2344 break;
2345 case EVENT_RING_OPCODE_VF_FLR:
2346 abs_vfid = elem->message.data.vf_flr_event.vf_id;
2347 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n",
2348 abs_vfid);
2349 goto get_vf;
2350 case EVENT_RING_OPCODE_MALICIOUS_VF:
2351 abs_vfid = elem->message.data.malicious_vf_event.vf_id;
2352 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
2353 abs_vfid, elem->message.data.malicious_vf_event.err_id);
2354 goto get_vf;
2355 default:
2356 return 1;
2357 }
2358
2359 /* check if the cid is the VF range */
2360 if (!bnx2x_iov_is_vf_cid(bp, cid)) {
2361 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid);
2362 return 1;
2363 }
2364
2365 /* extract vf and rxq index from vf_cid - relies on the following:
2366 * 1. vfid on cid reflects the true abs_vfid
2367 * 2. The max number of VFs (per path) is 64
2368 */
2369 qidx = cid & ((1 << BNX2X_VF_CID_WND)-1);
2370 abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2371 get_vf:
2372 vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
2373
2374 if (!vf) {
2375 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n",
2376 cid, abs_vfid);
2377 return 0;
2378 }
2379
2380 switch (opcode) {
2381 case EVENT_RING_OPCODE_CFC_DEL:
2382 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n",
2383 vf->abs_vfid, qidx);
2384 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp,
2385 &vfq_get(vf,
2386 qidx)->sp_obj,
2387 BNX2X_Q_CMD_CFC_DEL);
2388 break;
2389 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2390 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n",
2391 vf->abs_vfid, qidx);
2392 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem);
2393 break;
2394 case EVENT_RING_OPCODE_MULTICAST_RULES:
2395 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n",
2396 vf->abs_vfid, qidx);
2397 bnx2x_vf_handle_mcast_eqe(bp, vf);
2398 break;
2399 case EVENT_RING_OPCODE_FILTERS_RULES:
2400 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n",
2401 vf->abs_vfid, qidx);
2402 bnx2x_vf_handle_filters_eqe(bp, vf);
2403 break;
2404 case EVENT_RING_OPCODE_VF_FLR:
2405 DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n",
2406 vf->abs_vfid);
2407 /* Do nothing for now */
2408 break;
2409 case EVENT_RING_OPCODE_MALICIOUS_VF:
2410 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d error id %x\n",
2411 abs_vfid, elem->message.data.malicious_vf_event.err_id);
2412 /* Do nothing for now */
2413 break;
2414 }
2415 /* SRIOV: reschedule any 'in_progress' operations */
2416 bnx2x_iov_sp_event(bp, cid, false);
2417
2418 return 0;
2419 }
2420
2421 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid)
2422 {
2423 /* extract the vf from vf_cid - relies on the following:
2424 * 1. vfid on cid reflects the true abs_vfid
2425 * 2. The max number of VFs (per path) is 64
2426 */
2427 int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2428 return bnx2x_vf_by_abs_fid(bp, abs_vfid);
2429 }
2430
2431 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
2432 struct bnx2x_queue_sp_obj **q_obj)
2433 {
2434 struct bnx2x_virtf *vf;
2435
2436 if (!IS_SRIOV(bp))
2437 return;
2438
2439 vf = bnx2x_vf_by_cid(bp, vf_cid);
2440
2441 if (vf) {
2442 /* extract queue index from vf_cid - relies on the following:
2443 * 1. vfid on cid reflects the true abs_vfid
2444 * 2. The max number of VFs (per path) is 64
2445 */
2446 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1);
2447 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj);
2448 } else {
2449 BNX2X_ERR("No vf matching cid %d\n", vf_cid);
2450 }
2451 }
2452
2453 void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work)
2454 {
2455 struct bnx2x_virtf *vf;
2456
2457 /* check if the cid is the VF range */
2458 if (!IS_SRIOV(bp) || !bnx2x_iov_is_vf_cid(bp, vf_cid))
2459 return;
2460
2461 vf = bnx2x_vf_by_cid(bp, vf_cid);
2462 if (vf) {
2463 /* set in_progress flag */
2464 atomic_set(&vf->op_in_progress, 1);
2465 if (queue_work)
2466 queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
2467 }
2468 }
2469
2470 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp)
2471 {
2472 int i;
2473 int first_queue_query_index, num_queues_req;
2474 dma_addr_t cur_data_offset;
2475 struct stats_query_entry *cur_query_entry;
2476 u8 stats_count = 0;
2477 bool is_fcoe = false;
2478
2479 if (!IS_SRIOV(bp))
2480 return;
2481
2482 if (!NO_FCOE(bp))
2483 is_fcoe = true;
2484
2485 /* fcoe adds one global request and one queue request */
2486 num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe;
2487 first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX -
2488 (is_fcoe ? 0 : 1);
2489
2490 DP(BNX2X_MSG_IOV,
2491 "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",
2492 BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index,
2493 first_queue_query_index + num_queues_req);
2494
2495 cur_data_offset = bp->fw_stats_data_mapping +
2496 offsetof(struct bnx2x_fw_stats_data, queue_stats) +
2497 num_queues_req * sizeof(struct per_queue_stats);
2498
2499 cur_query_entry = &bp->fw_stats_req->
2500 query[first_queue_query_index + num_queues_req];
2501
2502 for_each_vf(bp, i) {
2503 int j;
2504 struct bnx2x_virtf *vf = BP_VF(bp, i);
2505
2506 if (vf->state != VF_ENABLED) {
2507 DP(BNX2X_MSG_IOV,
2508 "vf %d not enabled so no stats for it\n",
2509 vf->abs_vfid);
2510 continue;
2511 }
2512
2513 DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid);
2514 for_each_vfq(vf, j) {
2515 struct bnx2x_vf_queue *rxq = vfq_get(vf, j);
2516
2517 dma_addr_t q_stats_addr =
2518 vf->fw_stat_map + j * vf->stats_stride;
2519
2520 /* collect stats fro active queues only */
2521 if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) ==
2522 BNX2X_Q_LOGICAL_STATE_STOPPED)
2523 continue;
2524
2525 /* create stats query entry for this queue */
2526 cur_query_entry->kind = STATS_TYPE_QUEUE;
2527 cur_query_entry->index = vfq_stat_id(vf, rxq);
2528 cur_query_entry->funcID =
2529 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid));
2530 cur_query_entry->address.hi =
2531 cpu_to_le32(U64_HI(q_stats_addr));
2532 cur_query_entry->address.lo =
2533 cpu_to_le32(U64_LO(q_stats_addr));
2534 DP(BNX2X_MSG_IOV,
2535 "added address %x %x for vf %d queue %d client %d\n",
2536 cur_query_entry->address.hi,
2537 cur_query_entry->address.lo, cur_query_entry->funcID,
2538 j, cur_query_entry->index);
2539 cur_query_entry++;
2540 cur_data_offset += sizeof(struct per_queue_stats);
2541 stats_count++;
2542
2543 /* all stats are coalesced to the leading queue */
2544 if (vf->cfg_flags & VF_CFG_STATS_COALESCE)
2545 break;
2546 }
2547 }
2548 bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count;
2549 }
2550
2551 void bnx2x_iov_sp_task(struct bnx2x *bp)
2552 {
2553 int i;
2554
2555 if (!IS_SRIOV(bp))
2556 return;
2557 /* Iterate over all VFs and invoke state transition for VFs with
2558 * 'in-progress' slow-path operations
2559 */
2560 DP(BNX2X_MSG_IOV, "searching for pending vf operations\n");
2561 for_each_vf(bp, i) {
2562 struct bnx2x_virtf *vf = BP_VF(bp, i);
2563
2564 if (!vf) {
2565 BNX2X_ERR("VF was null! skipping...\n");
2566 continue;
2567 }
2568
2569 if (!list_empty(&vf->op_list_head) &&
2570 atomic_read(&vf->op_in_progress)) {
2571 DP(BNX2X_MSG_IOV, "running pending op for vf %d\n", i);
2572 bnx2x_vfop_cur(bp, vf)->transition(bp, vf);
2573 }
2574 }
2575 }
2576
2577 static inline
2578 struct bnx2x_virtf *__vf_from_stat_id(struct bnx2x *bp, u8 stat_id)
2579 {
2580 int i;
2581 struct bnx2x_virtf *vf = NULL;
2582
2583 for_each_vf(bp, i) {
2584 vf = BP_VF(bp, i);
2585 if (stat_id >= vf->igu_base_id &&
2586 stat_id < vf->igu_base_id + vf_sb_count(vf))
2587 break;
2588 }
2589 return vf;
2590 }
2591
2592 /* VF API helpers */
2593 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid,
2594 u8 enable)
2595 {
2596 u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4;
2597 u32 val = enable ? (abs_vfid | (1 << 6)) : 0;
2598
2599 REG_WR(bp, reg, val);
2600 }
2601
2602 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf)
2603 {
2604 int i;
2605
2606 for_each_vfq(vf, i)
2607 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2608 vfq_qzone_id(vf, vfq_get(vf, i)), false);
2609 }
2610
2611 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf)
2612 {
2613 u32 val;
2614
2615 /* clear the VF configuration - pretend */
2616 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
2617 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
2618 val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN |
2619 IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK);
2620 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
2621 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
2622 }
2623
2624 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf)
2625 {
2626 return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF),
2627 BNX2X_VF_MAX_QUEUES);
2628 }
2629
2630 static
2631 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf,
2632 struct vf_pf_resc_request *req_resc)
2633 {
2634 u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2635 u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2636
2637 return ((req_resc->num_rxqs <= rxq_cnt) &&
2638 (req_resc->num_txqs <= txq_cnt) &&
2639 (req_resc->num_sbs <= vf_sb_count(vf)) &&
2640 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) &&
2641 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf)));
2642 }
2643
2644 /* CORE VF API */
2645 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
2646 struct vf_pf_resc_request *resc)
2647 {
2648 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) *
2649 BNX2X_CIDS_PER_VF;
2650
2651 union cdu_context *base_cxt = (union cdu_context *)
2652 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2653 (base_vf_cid & (ILT_PAGE_CIDS-1));
2654 int i;
2655
2656 /* if state is 'acquired' the VF was not released or FLR'd, in
2657 * this case the returned resources match the acquired already
2658 * acquired resources. Verify that the requested numbers do
2659 * not exceed the already acquired numbers.
2660 */
2661 if (vf->state == VF_ACQUIRED) {
2662 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n",
2663 vf->abs_vfid);
2664
2665 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2666 BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n",
2667 vf->abs_vfid);
2668 return -EINVAL;
2669 }
2670 return 0;
2671 }
2672
2673 /* Otherwise vf state must be 'free' or 'reset' */
2674 if (vf->state != VF_FREE && vf->state != VF_RESET) {
2675 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n",
2676 vf->abs_vfid, vf->state);
2677 return -EINVAL;
2678 }
2679
2680 /* static allocation:
2681 * the global maximum number are fixed per VF. Fail the request if
2682 * requested number exceed these globals
2683 */
2684 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2685 DP(BNX2X_MSG_IOV,
2686 "cannot fulfill vf resource request. Placing maximal available values in response\n");
2687 /* set the max resource in the vf */
2688 return -ENOMEM;
2689 }
2690
2691 /* Set resources counters - 0 request means max available */
2692 vf_sb_count(vf) = resc->num_sbs;
2693 vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2694 vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2695 if (resc->num_mac_filters)
2696 vf_mac_rules_cnt(vf) = resc->num_mac_filters;
2697 if (resc->num_vlan_filters)
2698 vf_vlan_rules_cnt(vf) = resc->num_vlan_filters;
2699
2700 DP(BNX2X_MSG_IOV,
2701 "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n",
2702 vf_sb_count(vf), vf_rxq_count(vf),
2703 vf_txq_count(vf), vf_mac_rules_cnt(vf),
2704 vf_vlan_rules_cnt(vf));
2705
2706 /* Initialize the queues */
2707 if (!vf->vfqs) {
2708 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n");
2709 return -EINVAL;
2710 }
2711
2712 for_each_vfq(vf, i) {
2713 struct bnx2x_vf_queue *q = vfq_get(vf, i);
2714
2715 if (!q) {
2716 BNX2X_ERR("q number %d was not allocated\n", i);
2717 return -EINVAL;
2718 }
2719
2720 q->index = i;
2721 q->cxt = &((base_cxt + i)->eth);
2722 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i;
2723
2724 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n",
2725 vf->abs_vfid, i, q->index, q->cid, q->cxt);
2726
2727 /* init SP objects */
2728 bnx2x_vfq_init(bp, vf, q);
2729 }
2730 vf->state = VF_ACQUIRED;
2731 return 0;
2732 }
2733
2734 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map)
2735 {
2736 struct bnx2x_func_init_params func_init = {0};
2737 u16 flags = 0;
2738 int i;
2739
2740 /* the sb resources are initialized at this point, do the
2741 * FW/HW initializations
2742 */
2743 for_each_vf_sb(vf, i)
2744 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true,
2745 vf_igu_sb(vf, i), vf_igu_sb(vf, i));
2746
2747 /* Sanity checks */
2748 if (vf->state != VF_ACQUIRED) {
2749 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n",
2750 vf->abs_vfid, vf->state);
2751 return -EINVAL;
2752 }
2753
2754 /* let FLR complete ... */
2755 msleep(100);
2756
2757 /* FLR cleanup epilogue */
2758 if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid))
2759 return -EBUSY;
2760
2761 /* reset IGU VF statistics: MSIX */
2762 REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0);
2763
2764 /* vf init */
2765 if (vf->cfg_flags & VF_CFG_STATS)
2766 flags |= (FUNC_FLG_STATS | FUNC_FLG_SPQ);
2767
2768 if (vf->cfg_flags & VF_CFG_TPA)
2769 flags |= FUNC_FLG_TPA;
2770
2771 if (is_vf_multi(vf))
2772 flags |= FUNC_FLG_RSS;
2773
2774 /* function setup */
2775 func_init.func_flgs = flags;
2776 func_init.pf_id = BP_FUNC(bp);
2777 func_init.func_id = FW_VF_HANDLE(vf->abs_vfid);
2778 func_init.fw_stat_map = vf->fw_stat_map;
2779 func_init.spq_map = vf->spq_map;
2780 func_init.spq_prod = 0;
2781 bnx2x_func_init(bp, &func_init);
2782
2783 /* Enable the vf */
2784 bnx2x_vf_enable_access(bp, vf->abs_vfid);
2785 bnx2x_vf_enable_traffic(bp, vf);
2786
2787 /* queue protection table */
2788 for_each_vfq(vf, i)
2789 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2790 vfq_qzone_id(vf, vfq_get(vf, i)), true);
2791
2792 vf->state = VF_ENABLED;
2793
2794 /* update vf bulletin board */
2795 bnx2x_post_vf_bulletin(bp, vf->index);
2796
2797 return 0;
2798 }
2799
2800 struct set_vf_state_cookie {
2801 struct bnx2x_virtf *vf;
2802 u8 state;
2803 };
2804
2805 void bnx2x_set_vf_state(void *cookie)
2806 {
2807 struct set_vf_state_cookie *p = (struct set_vf_state_cookie *)cookie;
2808
2809 p->vf->state = p->state;
2810 }
2811
2812 /* VFOP close (teardown the queues, delete mcasts and close HW) */
2813 static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
2814 {
2815 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2816 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
2817 enum bnx2x_vfop_close_state state = vfop->state;
2818 struct bnx2x_vfop_cmd cmd = {
2819 .done = bnx2x_vfop_close,
2820 .block = false,
2821 };
2822
2823 if (vfop->rc < 0)
2824 goto op_err;
2825
2826 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2827
2828 switch (state) {
2829 case BNX2X_VFOP_CLOSE_QUEUES:
2830
2831 if (++(qx->qid) < vf_rxq_count(vf)) {
2832 vfop->rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qx->qid);
2833 if (vfop->rc)
2834 goto op_err;
2835 return;
2836 }
2837
2838 /* remove multicasts */
2839 vfop->state = BNX2X_VFOP_CLOSE_HW;
2840 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false);
2841 if (vfop->rc)
2842 goto op_err;
2843 return;
2844
2845 case BNX2X_VFOP_CLOSE_HW:
2846
2847 /* disable the interrupts */
2848 DP(BNX2X_MSG_IOV, "disabling igu\n");
2849 bnx2x_vf_igu_disable(bp, vf);
2850
2851 /* disable the VF */
2852 DP(BNX2X_MSG_IOV, "clearing qtbl\n");
2853 bnx2x_vf_clr_qtbl(bp, vf);
2854
2855 goto op_done;
2856 default:
2857 bnx2x_vfop_default(state);
2858 }
2859 op_err:
2860 BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc);
2861 op_done:
2862
2863 /* need to make sure there are no outstanding stats ramrods which may
2864 * cause the device to access the VF's stats buffer which it will free
2865 * as soon as we return from the close flow.
2866 */
2867 {
2868 struct set_vf_state_cookie cookie;
2869
2870 cookie.vf = vf;
2871 cookie.state = VF_ACQUIRED;
2872 bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie);
2873 }
2874
2875 DP(BNX2X_MSG_IOV, "set state to acquired\n");
2876 bnx2x_vfop_end(bp, vf, vfop);
2877 }
2878
2879 int bnx2x_vfop_close_cmd(struct bnx2x *bp,
2880 struct bnx2x_virtf *vf,
2881 struct bnx2x_vfop_cmd *cmd)
2882 {
2883 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2884 if (vfop) {
2885 vfop->args.qx.qid = -1; /* loop */
2886 bnx2x_vfop_opset(BNX2X_VFOP_CLOSE_QUEUES,
2887 bnx2x_vfop_close, cmd->done);
2888 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_close,
2889 cmd->block);
2890 }
2891 return -ENOMEM;
2892 }
2893
2894 /* VF release can be called either: 1. The VF was acquired but
2895 * not enabled 2. the vf was enabled or in the process of being
2896 * enabled
2897 */
2898 static void bnx2x_vfop_release(struct bnx2x *bp, struct bnx2x_virtf *vf)
2899 {
2900 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2901 struct bnx2x_vfop_cmd cmd = {
2902 .done = bnx2x_vfop_release,
2903 .block = false,
2904 };
2905
2906 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2907
2908 if (vfop->rc < 0)
2909 goto op_err;
2910
2911 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid,
2912 vf->state == VF_FREE ? "Free" :
2913 vf->state == VF_ACQUIRED ? "Acquired" :
2914 vf->state == VF_ENABLED ? "Enabled" :
2915 vf->state == VF_RESET ? "Reset" :
2916 "Unknown");
2917
2918 switch (vf->state) {
2919 case VF_ENABLED:
2920 vfop->rc = bnx2x_vfop_close_cmd(bp, vf, &cmd);
2921 if (vfop->rc)
2922 goto op_err;
2923 return;
2924
2925 case VF_ACQUIRED:
2926 DP(BNX2X_MSG_IOV, "about to free resources\n");
2927 bnx2x_vf_free_resc(bp, vf);
2928 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2929 goto op_done;
2930
2931 case VF_FREE:
2932 case VF_RESET:
2933 /* do nothing */
2934 goto op_done;
2935 default:
2936 bnx2x_vfop_default(vf->state);
2937 }
2938 op_err:
2939 BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, vfop->rc);
2940 op_done:
2941 bnx2x_vfop_end(bp, vf, vfop);
2942 }
2943
2944 static void bnx2x_vfop_rss(struct bnx2x *bp, struct bnx2x_virtf *vf)
2945 {
2946 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2947 enum bnx2x_vfop_rss_state state;
2948
2949 if (!vfop) {
2950 BNX2X_ERR("vfop was null\n");
2951 return;
2952 }
2953
2954 state = vfop->state;
2955 bnx2x_vfop_reset_wq(vf);
2956
2957 if (vfop->rc < 0)
2958 goto op_err;
2959
2960 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2961
2962 switch (state) {
2963 case BNX2X_VFOP_RSS_CONFIG:
2964 /* next state */
2965 vfop->state = BNX2X_VFOP_RSS_DONE;
2966 bnx2x_config_rss(bp, &vfop->op_p->rss);
2967 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
2968 op_err:
2969 BNX2X_ERR("RSS error: rc %d\n", vfop->rc);
2970 op_done:
2971 case BNX2X_VFOP_RSS_DONE:
2972 bnx2x_vfop_end(bp, vf, vfop);
2973 return;
2974 default:
2975 bnx2x_vfop_default(state);
2976 }
2977 op_pending:
2978 return;
2979 }
2980
2981 int bnx2x_vfop_release_cmd(struct bnx2x *bp,
2982 struct bnx2x_virtf *vf,
2983 struct bnx2x_vfop_cmd *cmd)
2984 {
2985 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2986 if (vfop) {
2987 bnx2x_vfop_opset(-1, /* use vf->state */
2988 bnx2x_vfop_release, cmd->done);
2989 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_release,
2990 cmd->block);
2991 }
2992 return -ENOMEM;
2993 }
2994
2995 int bnx2x_vfop_rss_cmd(struct bnx2x *bp,
2996 struct bnx2x_virtf *vf,
2997 struct bnx2x_vfop_cmd *cmd)
2998 {
2999 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
3000
3001 if (vfop) {
3002 bnx2x_vfop_opset(BNX2X_VFOP_RSS_CONFIG, bnx2x_vfop_rss,
3003 cmd->done);
3004 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rss,
3005 cmd->block);
3006 }
3007 return -ENOMEM;
3008 }
3009
3010 /* VF release ~ VF close + VF release-resources
3011 * Release is the ultimate SW shutdown and is called whenever an
3012 * irrecoverable error is encountered.
3013 */
3014 void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block)
3015 {
3016 struct bnx2x_vfop_cmd cmd = {
3017 .done = NULL,
3018 .block = block,
3019 };
3020 int rc;
3021
3022 DP(BNX2X_MSG_IOV, "PF releasing vf %d\n", vf->abs_vfid);
3023 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
3024
3025 rc = bnx2x_vfop_release_cmd(bp, vf, &cmd);
3026 if (rc)
3027 WARN(rc,
3028 "VF[%d] Failed to allocate resources for release op- rc=%d\n",
3029 vf->abs_vfid, rc);
3030 }
3031
3032 static inline void bnx2x_vf_get_sbdf(struct bnx2x *bp,
3033 struct bnx2x_virtf *vf, u32 *sbdf)
3034 {
3035 *sbdf = vf->devfn | (vf->bus << 8);
3036 }
3037
3038 static inline void bnx2x_vf_get_bars(struct bnx2x *bp, struct bnx2x_virtf *vf,
3039 struct bnx2x_vf_bar_info *bar_info)
3040 {
3041 int n;
3042
3043 bar_info->nr_bars = bp->vfdb->sriov.nres;
3044 for (n = 0; n < bar_info->nr_bars; n++)
3045 bar_info->bars[n] = vf->bars[n];
3046 }
3047
3048 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3049 enum channel_tlvs tlv)
3050 {
3051 /* we don't lock the channel for unsupported tlvs */
3052 if (!bnx2x_tlv_supported(tlv)) {
3053 BNX2X_ERR("attempting to lock with unsupported tlv. Aborting\n");
3054 return;
3055 }
3056
3057 /* lock the channel */
3058 mutex_lock(&vf->op_mutex);
3059
3060 /* record the locking op */
3061 vf->op_current = tlv;
3062
3063 /* log the lock */
3064 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n",
3065 vf->abs_vfid, tlv);
3066 }
3067
3068 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3069 enum channel_tlvs expected_tlv)
3070 {
3071 enum channel_tlvs current_tlv;
3072
3073 if (!vf) {
3074 BNX2X_ERR("VF was %p\n", vf);
3075 return;
3076 }
3077
3078 current_tlv = vf->op_current;
3079
3080 /* we don't unlock the channel for unsupported tlvs */
3081 if (!bnx2x_tlv_supported(expected_tlv))
3082 return;
3083
3084 WARN(expected_tlv != vf->op_current,
3085 "lock mismatch: expected %d found %d", expected_tlv,
3086 vf->op_current);
3087
3088 /* record the locking op */
3089 vf->op_current = CHANNEL_TLV_NONE;
3090
3091 /* lock the channel */
3092 mutex_unlock(&vf->op_mutex);
3093
3094 /* log the unlock */
3095 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n",
3096 vf->abs_vfid, vf->op_current);
3097 }
3098
3099 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
3100 {
3101 struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
3102
3103 DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
3104 num_vfs_param, BNX2X_NR_VIRTFN(bp));
3105
3106 /* HW channel is only operational when PF is up */
3107 if (bp->state != BNX2X_STATE_OPEN) {
3108 BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n");
3109 return -EINVAL;
3110 }
3111
3112 /* we are always bound by the total_vfs in the configuration space */
3113 if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) {
3114 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n",
3115 num_vfs_param, BNX2X_NR_VIRTFN(bp));
3116 num_vfs_param = BNX2X_NR_VIRTFN(bp);
3117 }
3118
3119 bp->requested_nr_virtfn = num_vfs_param;
3120 if (num_vfs_param == 0) {
3121 pci_disable_sriov(dev);
3122 return 0;
3123 } else {
3124 return bnx2x_enable_sriov(bp);
3125 }
3126 }
3127 #define IGU_ENTRY_SIZE 4
3128
3129 int bnx2x_enable_sriov(struct bnx2x *bp)
3130 {
3131 int rc = 0, req_vfs = bp->requested_nr_virtfn;
3132 int vf_idx, sb_idx, vfq_idx, qcount, first_vf;
3133 u32 igu_entry, address;
3134 u16 num_vf_queues;
3135
3136 if (req_vfs == 0)
3137 return 0;
3138
3139 first_vf = bp->vfdb->sriov.first_vf_in_pf;
3140
3141 /* statically distribute vf sb pool between VFs */
3142 num_vf_queues = min_t(u16, BNX2X_VF_MAX_QUEUES,
3143 BP_VFDB(bp)->vf_sbs_pool / req_vfs);
3144
3145 /* zero previous values learned from igu cam */
3146 for (vf_idx = 0; vf_idx < req_vfs; vf_idx++) {
3147 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
3148
3149 vf->sb_count = 0;
3150 vf_sb_count(BP_VF(bp, vf_idx)) = 0;
3151 }
3152 bp->vfdb->vf_sbs_pool = 0;
3153
3154 /* prepare IGU cam */
3155 sb_idx = BP_VFDB(bp)->first_vf_igu_entry;
3156 address = IGU_REG_MAPPING_MEMORY + sb_idx * IGU_ENTRY_SIZE;
3157 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
3158 for (vfq_idx = 0; vfq_idx < num_vf_queues; vfq_idx++) {
3159 igu_entry = vf_idx << IGU_REG_MAPPING_MEMORY_FID_SHIFT |
3160 vfq_idx << IGU_REG_MAPPING_MEMORY_VECTOR_SHIFT |
3161 IGU_REG_MAPPING_MEMORY_VALID;
3162 DP(BNX2X_MSG_IOV, "assigning sb %d to vf %d\n",
3163 sb_idx, vf_idx);
3164 REG_WR(bp, address, igu_entry);
3165 sb_idx++;
3166 address += IGU_ENTRY_SIZE;
3167 }
3168 }
3169
3170 /* Reinitialize vf database according to igu cam */
3171 bnx2x_get_vf_igu_cam_info(bp);
3172
3173 DP(BNX2X_MSG_IOV, "vf_sbs_pool %d, num_vf_queues %d\n",
3174 BP_VFDB(bp)->vf_sbs_pool, num_vf_queues);
3175
3176 qcount = 0;
3177 for_each_vf(bp, vf_idx) {
3178 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
3179
3180 /* set local queue arrays */
3181 vf->vfqs = &bp->vfdb->vfqs[qcount];
3182 qcount += vf_sb_count(vf);
3183 }
3184
3185 /* prepare msix vectors in VF configuration space */
3186 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
3187 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx));
3188 REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL,
3189 num_vf_queues);
3190 }
3191 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
3192
3193 /* enable sriov. This will probe all the VFs, and consequentially cause
3194 * the "acquire" messages to appear on the VF PF channel.
3195 */
3196 DP(BNX2X_MSG_IOV, "about to call enable sriov\n");
3197 pci_disable_sriov(bp->pdev);
3198 rc = pci_enable_sriov(bp->pdev, req_vfs);
3199 if (rc) {
3200 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
3201 return rc;
3202 }
3203 DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs);
3204 return req_vfs;
3205 }
3206
3207 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp)
3208 {
3209 int vfidx;
3210 struct pf_vf_bulletin_content *bulletin;
3211
3212 DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n");
3213 for_each_vf(bp, vfidx) {
3214 bulletin = BP_VF_BULLETIN(bp, vfidx);
3215 if (BP_VF(bp, vfidx)->cfg_flags & VF_CFG_VLAN)
3216 bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0);
3217 }
3218 }
3219
3220 void bnx2x_disable_sriov(struct bnx2x *bp)
3221 {
3222 pci_disable_sriov(bp->pdev);
3223 }
3224
3225 int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx, struct bnx2x_virtf **vf,
3226 struct pf_vf_bulletin_content **bulletin)
3227 {
3228 if (bp->state != BNX2X_STATE_OPEN) {
3229 BNX2X_ERR("vf ndo called though PF is down\n");
3230 return -EINVAL;
3231 }
3232
3233 if (!IS_SRIOV(bp)) {
3234 BNX2X_ERR("vf ndo called though sriov is disabled\n");
3235 return -EINVAL;
3236 }
3237
3238 if (vfidx >= BNX2X_NR_VIRTFN(bp)) {
3239 BNX2X_ERR("vf ndo called for uninitialized VF. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
3240 vfidx, BNX2X_NR_VIRTFN(bp));
3241 return -EINVAL;
3242 }
3243
3244 /* init members */
3245 *vf = BP_VF(bp, vfidx);
3246 *bulletin = BP_VF_BULLETIN(bp, vfidx);
3247
3248 if (!*vf) {
3249 BNX2X_ERR("vf ndo called but vf struct is null. vfidx was %d\n",
3250 vfidx);
3251 return -EINVAL;
3252 }
3253
3254 if (!(*vf)->vfqs) {
3255 BNX2X_ERR("vf ndo called but vfqs struct is null. Was ndo invoked before dynamically enabling SR-IOV? vfidx was %d\n",
3256 vfidx);
3257 return -EINVAL;
3258 }
3259
3260 if (!*bulletin) {
3261 BNX2X_ERR("vf ndo called but Bulletin Board struct is null. vfidx was %d\n",
3262 vfidx);
3263 return -EINVAL;
3264 }
3265
3266 return 0;
3267 }
3268
3269 int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
3270 struct ifla_vf_info *ivi)
3271 {
3272 struct bnx2x *bp = netdev_priv(dev);
3273 struct bnx2x_virtf *vf = NULL;
3274 struct pf_vf_bulletin_content *bulletin = NULL;
3275 struct bnx2x_vlan_mac_obj *mac_obj;
3276 struct bnx2x_vlan_mac_obj *vlan_obj;
3277 int rc;
3278
3279 /* sanity and init */
3280 rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3281 if (rc)
3282 return rc;
3283 mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
3284 vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
3285 if (!mac_obj || !vlan_obj) {
3286 BNX2X_ERR("VF partially initialized\n");
3287 return -EINVAL;
3288 }
3289
3290 ivi->vf = vfidx;
3291 ivi->qos = 0;
3292 ivi->tx_rate = 10000; /* always 10G. TBA take from link struct */
3293 ivi->spoofchk = 1; /*always enabled */
3294 if (vf->state == VF_ENABLED) {
3295 /* mac and vlan are in vlan_mac objects */
3296 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj)))
3297 mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac,
3298 0, ETH_ALEN);
3299 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, vlan_obj)))
3300 vlan_obj->get_n_elements(bp, vlan_obj, 1,
3301 (u8 *)&ivi->vlan, 0,
3302 VLAN_HLEN);
3303 } else {
3304 /* mac */
3305 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
3306 /* mac configured by ndo so its in bulletin board */
3307 memcpy(&ivi->mac, bulletin->mac, ETH_ALEN);
3308 else
3309 /* function has not been loaded yet. Show mac as 0s */
3310 memset(&ivi->mac, 0, ETH_ALEN);
3311
3312 /* vlan */
3313 if (bulletin->valid_bitmap & (1 << VLAN_VALID))
3314 /* vlan configured by ndo so its in bulletin board */
3315 memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN);
3316 else
3317 /* function has not been loaded yet. Show vlans as 0s */
3318 memset(&ivi->vlan, 0, VLAN_HLEN);
3319 }
3320
3321 return 0;
3322 }
3323
3324 /* New mac for VF. Consider these cases:
3325 * 1. VF hasn't been acquired yet - save the mac in local bulletin board and
3326 * supply at acquire.
3327 * 2. VF has already been acquired but has not yet initialized - store in local
3328 * bulletin board. mac will be posted on VF bulletin board after VF init. VF
3329 * will configure this mac when it is ready.
3330 * 3. VF has already initialized but has not yet setup a queue - post the new
3331 * mac on VF's bulletin board right now. VF will configure this mac when it
3332 * is ready.
3333 * 4. VF has already set a queue - delete any macs already configured for this
3334 * queue and manually config the new mac.
3335 * In any event, once this function has been called refuse any attempts by the
3336 * VF to configure any mac for itself except for this mac. In case of a race
3337 * where the VF fails to see the new post on its bulletin board before sending a
3338 * mac configuration request, the PF will simply fail the request and VF can try
3339 * again after consulting its bulletin board.
3340 */
3341 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
3342 {
3343 struct bnx2x *bp = netdev_priv(dev);
3344 int rc, q_logical_state;
3345 struct bnx2x_virtf *vf = NULL;
3346 struct pf_vf_bulletin_content *bulletin = NULL;
3347
3348 /* sanity and init */
3349 rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3350 if (rc)
3351 return rc;
3352 if (!is_valid_ether_addr(mac)) {
3353 BNX2X_ERR("mac address invalid\n");
3354 return -EINVAL;
3355 }
3356
3357 /* update PF's copy of the VF's bulletin. Will no longer accept mac
3358 * configuration requests from vf unless match this mac
3359 */
3360 bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID;
3361 memcpy(bulletin->mac, mac, ETH_ALEN);
3362
3363 /* Post update on VF's bulletin board */
3364 rc = bnx2x_post_vf_bulletin(bp, vfidx);
3365 if (rc) {
3366 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
3367 return rc;
3368 }
3369
3370 q_logical_state =
3371 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj));
3372 if (vf->state == VF_ENABLED &&
3373 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3374 /* configure the mac in device on this vf's queue */
3375 unsigned long ramrod_flags = 0;
3376 struct bnx2x_vlan_mac_obj *mac_obj =
3377 &bnx2x_leading_vfq(vf, mac_obj);
3378
3379 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
3380 if (rc)
3381 return rc;
3382
3383 /* must lock vfpf channel to protect against vf flows */
3384 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3385
3386 /* remove existing eth macs */
3387 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
3388 if (rc) {
3389 BNX2X_ERR("failed to delete eth macs\n");
3390 return -EINVAL;
3391 }
3392
3393 /* remove existing uc list macs */
3394 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true);
3395 if (rc) {
3396 BNX2X_ERR("failed to delete uc_list macs\n");
3397 return -EINVAL;
3398 }
3399
3400 /* configure the new mac to device */
3401 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3402 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true,
3403 BNX2X_ETH_MAC, &ramrod_flags);
3404
3405 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3406 }
3407
3408 return 0;
3409 }
3410
3411 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
3412 {
3413 struct bnx2x *bp = netdev_priv(dev);
3414 int rc, q_logical_state;
3415 struct bnx2x_virtf *vf = NULL;
3416 struct pf_vf_bulletin_content *bulletin = NULL;
3417
3418 /* sanity and init */
3419 rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3420 if (rc)
3421 return rc;
3422
3423 if (vlan > 4095) {
3424 BNX2X_ERR("illegal vlan value %d\n", vlan);
3425 return -EINVAL;
3426 }
3427
3428 DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n",
3429 vfidx, vlan, 0);
3430
3431 /* update PF's copy of the VF's bulletin. No point in posting the vlan
3432 * to the VF since it doesn't have anything to do with it. But it useful
3433 * to store it here in case the VF is not up yet and we can only
3434 * configure the vlan later when it does.
3435 */
3436 bulletin->valid_bitmap |= 1 << VLAN_VALID;
3437 bulletin->vlan = vlan;
3438
3439 /* is vf initialized and queue set up? */
3440 q_logical_state =
3441 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj));
3442 if (vf->state == VF_ENABLED &&
3443 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3444 /* configure the vlan in device on this vf's queue */
3445 unsigned long ramrod_flags = 0;
3446 unsigned long vlan_mac_flags = 0;
3447 struct bnx2x_vlan_mac_obj *vlan_obj =
3448 &bnx2x_leading_vfq(vf, vlan_obj);
3449 struct bnx2x_vlan_mac_ramrod_params ramrod_param;
3450 struct bnx2x_queue_state_params q_params = {NULL};
3451 struct bnx2x_queue_update_params *update_params;
3452
3453 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
3454 if (rc)
3455 return rc;
3456 memset(&ramrod_param, 0, sizeof(ramrod_param));
3457
3458 /* must lock vfpf channel to protect against vf flows */
3459 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3460
3461 /* remove existing vlans */
3462 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3463 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags,
3464 &ramrod_flags);
3465 if (rc) {
3466 BNX2X_ERR("failed to delete vlans\n");
3467 return -EINVAL;
3468 }
3469
3470 /* send queue update ramrod to configure default vlan and silent
3471 * vlan removal
3472 */
3473 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
3474 q_params.cmd = BNX2X_Q_CMD_UPDATE;
3475 q_params.q_obj = &bnx2x_leading_vfq(vf, sp_obj);
3476 update_params = &q_params.params.update;
3477 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
3478 &update_params->update_flags);
3479 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
3480 &update_params->update_flags);
3481
3482 if (vlan == 0) {
3483 /* if vlan is 0 then we want to leave the VF traffic
3484 * untagged, and leave the incoming traffic untouched
3485 * (i.e. do not remove any vlan tags).
3486 */
3487 __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3488 &update_params->update_flags);
3489 __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3490 &update_params->update_flags);
3491 } else {
3492 /* configure the new vlan to device */
3493 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3494 ramrod_param.vlan_mac_obj = vlan_obj;
3495 ramrod_param.ramrod_flags = ramrod_flags;
3496 ramrod_param.user_req.u.vlan.vlan = vlan;
3497 ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
3498 rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
3499 if (rc) {
3500 BNX2X_ERR("failed to configure vlan\n");
3501 return -EINVAL;
3502 }
3503
3504 /* configure default vlan to vf queue and set silent
3505 * vlan removal (the vf remains unaware of this vlan).
3506 */
3507 update_params = &q_params.params.update;
3508 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3509 &update_params->update_flags);
3510 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3511 &update_params->update_flags);
3512 update_params->def_vlan = vlan;
3513 }
3514
3515 /* Update the Queue state */
3516 rc = bnx2x_queue_state_change(bp, &q_params);
3517 if (rc) {
3518 BNX2X_ERR("Failed to configure default VLAN\n");
3519 return rc;
3520 }
3521
3522 /* clear the flag indicating that this VF needs its vlan
3523 * (will only be set if the HV configured th Vlan before vf was
3524 * and we were called because the VF came up later
3525 */
3526 vf->cfg_flags &= ~VF_CFG_VLAN;
3527
3528 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3529 }
3530 return 0;
3531 }
3532
3533 /* crc is the first field in the bulletin board. Compute the crc over the
3534 * entire bulletin board excluding the crc field itself. Use the length field
3535 * as the Bulletin Board was posted by a PF with possibly a different version
3536 * from the vf which will sample it. Therefore, the length is computed by the
3537 * PF and the used blindly by the VF.
3538 */
3539 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
3540 struct pf_vf_bulletin_content *bulletin)
3541 {
3542 return crc32(BULLETIN_CRC_SEED,
3543 ((u8 *)bulletin) + sizeof(bulletin->crc),
3544 bulletin->length - sizeof(bulletin->crc));
3545 }
3546
3547 /* Check for new posts on the bulletin board */
3548 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
3549 {
3550 struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
3551 int attempts;
3552
3553 /* bulletin board hasn't changed since last sample */
3554 if (bp->old_bulletin.version == bulletin.version)
3555 return PFVF_BULLETIN_UNCHANGED;
3556
3557 /* validate crc of new bulletin board */
3558 if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) {
3559 /* sampling structure in mid post may result with corrupted data
3560 * validate crc to ensure coherency.
3561 */
3562 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
3563 bulletin = bp->pf2vf_bulletin->content;
3564 if (bulletin.crc == bnx2x_crc_vf_bulletin(bp,
3565 &bulletin))
3566 break;
3567 BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
3568 bulletin.crc,
3569 bnx2x_crc_vf_bulletin(bp, &bulletin));
3570 }
3571 if (attempts >= BULLETIN_ATTEMPTS) {
3572 BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
3573 attempts);
3574 return PFVF_BULLETIN_CRC_ERR;
3575 }
3576 }
3577
3578 /* the mac address in bulletin board is valid and is new */
3579 if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID &&
3580 memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) {
3581 /* update new mac to net device */
3582 memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
3583 }
3584
3585 /* the vlan in bulletin board is valid and is new */
3586 if (bulletin.valid_bitmap & 1 << VLAN_VALID)
3587 memcpy(&bulletin.vlan, &bp->old_bulletin.vlan, VLAN_HLEN);
3588
3589 /* copy new bulletin board to bp */
3590 bp->old_bulletin = bulletin;
3591
3592 return PFVF_BULLETIN_UPDATED;
3593 }
3594
3595 void bnx2x_timer_sriov(struct bnx2x *bp)
3596 {
3597 bnx2x_sample_bulletin(bp);
3598
3599 /* if channel is down we need to self destruct */
3600 if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
3601 smp_mb__before_clear_bit();
3602 set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
3603 &bp->sp_rtnl_state);
3604 smp_mb__after_clear_bit();
3605 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3606 }
3607 }
3608
3609 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
3610 {
3611 /* vf doorbells are embedded within the regview */
3612 return bp->regview + PXP_VF_ADDR_DB_START;
3613 }
3614
3615 int bnx2x_vf_pci_alloc(struct bnx2x *bp)
3616 {
3617 mutex_init(&bp->vf2pf_mutex);
3618
3619 /* allocate vf2pf mailbox for vf to pf channel */
3620 BNX2X_PCI_ALLOC(bp->vf2pf_mbox, &bp->vf2pf_mbox_mapping,
3621 sizeof(struct bnx2x_vf_mbx_msg));
3622
3623 /* allocate pf 2 vf bulletin board */
3624 BNX2X_PCI_ALLOC(bp->pf2vf_bulletin, &bp->pf2vf_bulletin_mapping,
3625 sizeof(union pf_vf_bulletin));
3626
3627 return 0;
3628
3629 alloc_mem_err:
3630 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
3631 sizeof(struct bnx2x_vf_mbx_msg));
3632 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping,
3633 sizeof(union pf_vf_bulletin));
3634 return -ENOMEM;
3635 }
3636
3637 int bnx2x_open_epilog(struct bnx2x *bp)
3638 {
3639 /* Enable sriov via delayed work. This must be done via delayed work
3640 * because it causes the probe of the vf devices to be run, which invoke
3641 * register_netdevice which must have rtnl lock taken. As we are holding
3642 * the lock right now, that could only work if the probe would not take
3643 * the lock. However, as the probe of the vf may be called from other
3644 * contexts as well (such as passthrough to vm fails) it can't assume
3645 * the lock is being held for it. Using delayed work here allows the
3646 * probe code to simply take the lock (i.e. wait for it to be released
3647 * if it is being held). We only want to do this if the number of VFs
3648 * was set before PF driver was loaded.
3649 */
3650 if (IS_SRIOV(bp) && BNX2X_NR_VIRTFN(bp)) {
3651 smp_mb__before_clear_bit();
3652 set_bit(BNX2X_SP_RTNL_ENABLE_SRIOV, &bp->sp_rtnl_state);
3653 smp_mb__after_clear_bit();
3654 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3655 }
3656
3657 return 0;
3658 }
3659
3660 void bnx2x_iov_channel_down(struct bnx2x *bp)
3661 {
3662 int vf_idx;
3663 struct pf_vf_bulletin_content *bulletin;
3664
3665 if (!IS_SRIOV(bp))
3666 return;
3667
3668 for_each_vf(bp, vf_idx) {
3669 /* locate this VFs bulletin board and update the channel down
3670 * bit
3671 */
3672 bulletin = BP_VF_BULLETIN(bp, vf_idx);
3673 bulletin->valid_bitmap |= 1 << CHANNEL_DOWN;
3674
3675 /* update vf bulletin board */
3676 bnx2x_post_vf_bulletin(bp, vf_idx);
3677 }
3678 }
Linux kernel - Deliverables
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