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Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes
[deliverable/linux.git] / drivers / net / ethernet / broadcom / bnx2x / bnx2x_sriov.c
1 /* bnx2x_sriov.c: Broadcom Everest network driver.
2 *
3 * Copyright 2009-2013 Broadcom Corporation
4 *
5 * Unless you and Broadcom execute a separate written software license
6 * agreement governing use of this software, this software is licensed to you
7 * under the terms of the GNU General Public License version 2, available
8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
9 *
10 * Notwithstanding the above, under no circumstances may you combine this
11 * software in any way with any other Broadcom software provided under a
12 * license other than the GPL, without Broadcom's express prior written
13 * consent.
14 *
15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
16 * Written by: Shmulik Ravid <shmulikr@broadcom.com>
17 * Ariel Elior <ariele@broadcom.com>
18 *
19 */
20 #include "bnx2x.h"
21 #include "bnx2x_init.h"
22 #include "bnx2x_cmn.h"
23 #include "bnx2x_sp.h"
24 #include <linux/crc32.h>
25 #include <linux/if_vlan.h>
26
27 /* General service functions */
28 static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid,
29 u16 pf_id)
30 {
31 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid),
32 pf_id);
33 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid),
34 pf_id);
35 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid),
36 pf_id);
37 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid),
38 pf_id);
39 }
40
41 static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid,
42 u8 enable)
43 {
44 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid),
45 enable);
46 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid),
47 enable);
48 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid),
49 enable);
50 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid),
51 enable);
52 }
53
54 int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
55 {
56 int idx;
57
58 for_each_vf(bp, idx)
59 if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid)
60 break;
61 return idx;
62 }
63
64 static
65 struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
66 {
67 u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid);
68 return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL;
69 }
70
71 static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf,
72 u8 igu_sb_id, u8 segment, u16 index, u8 op,
73 u8 update)
74 {
75 /* acking a VF sb through the PF - use the GRC */
76 u32 ctl;
77 u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA;
78 u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL;
79 u32 func_encode = vf->abs_vfid;
80 u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id;
81 struct igu_regular cmd_data = {0};
82
83 cmd_data.sb_id_and_flags =
84 ((index << IGU_REGULAR_SB_INDEX_SHIFT) |
85 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
86 (update << IGU_REGULAR_BUPDATE_SHIFT) |
87 (op << IGU_REGULAR_ENABLE_INT_SHIFT));
88
89 ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT |
90 func_encode << IGU_CTRL_REG_FID_SHIFT |
91 IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT;
92
93 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
94 cmd_data.sb_id_and_flags, igu_addr_data);
95 REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags);
96 mmiowb();
97 barrier();
98
99 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
100 ctl, igu_addr_ctl);
101 REG_WR(bp, igu_addr_ctl, ctl);
102 mmiowb();
103 barrier();
104 }
105 /* VFOP - VF slow-path operation support */
106
107 #define BNX2X_VFOP_FILTER_ADD_CNT_MAX 0x10000
108
109 /* VFOP operations states */
110 enum bnx2x_vfop_qctor_state {
111 BNX2X_VFOP_QCTOR_INIT,
112 BNX2X_VFOP_QCTOR_SETUP,
113 BNX2X_VFOP_QCTOR_INT_EN
114 };
115
116 enum bnx2x_vfop_qdtor_state {
117 BNX2X_VFOP_QDTOR_HALT,
118 BNX2X_VFOP_QDTOR_TERMINATE,
119 BNX2X_VFOP_QDTOR_CFCDEL,
120 BNX2X_VFOP_QDTOR_DONE
121 };
122
123 enum bnx2x_vfop_vlan_mac_state {
124 BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
125 BNX2X_VFOP_VLAN_MAC_CLEAR,
126 BNX2X_VFOP_VLAN_MAC_CHK_DONE,
127 BNX2X_VFOP_MAC_CONFIG_LIST,
128 BNX2X_VFOP_VLAN_CONFIG_LIST,
129 BNX2X_VFOP_VLAN_CONFIG_LIST_0
130 };
131
132 enum bnx2x_vfop_qsetup_state {
133 BNX2X_VFOP_QSETUP_CTOR,
134 BNX2X_VFOP_QSETUP_VLAN0,
135 BNX2X_VFOP_QSETUP_DONE
136 };
137
138 enum bnx2x_vfop_mcast_state {
139 BNX2X_VFOP_MCAST_DEL,
140 BNX2X_VFOP_MCAST_ADD,
141 BNX2X_VFOP_MCAST_CHK_DONE
142 };
143 enum bnx2x_vfop_qflr_state {
144 BNX2X_VFOP_QFLR_CLR_VLAN,
145 BNX2X_VFOP_QFLR_CLR_MAC,
146 BNX2X_VFOP_QFLR_TERMINATE,
147 BNX2X_VFOP_QFLR_DONE
148 };
149
150 enum bnx2x_vfop_flr_state {
151 BNX2X_VFOP_FLR_QUEUES,
152 BNX2X_VFOP_FLR_HW
153 };
154
155 enum bnx2x_vfop_close_state {
156 BNX2X_VFOP_CLOSE_QUEUES,
157 BNX2X_VFOP_CLOSE_HW
158 };
159
160 enum bnx2x_vfop_rxmode_state {
161 BNX2X_VFOP_RXMODE_CONFIG,
162 BNX2X_VFOP_RXMODE_DONE
163 };
164
165 enum bnx2x_vfop_qteardown_state {
166 BNX2X_VFOP_QTEARDOWN_RXMODE,
167 BNX2X_VFOP_QTEARDOWN_CLR_VLAN,
168 BNX2X_VFOP_QTEARDOWN_CLR_MAC,
169 BNX2X_VFOP_QTEARDOWN_QDTOR,
170 BNX2X_VFOP_QTEARDOWN_DONE
171 };
172
173 #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0)
174
175 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
176 struct bnx2x_queue_init_params *init_params,
177 struct bnx2x_queue_setup_params *setup_params,
178 u16 q_idx, u16 sb_idx)
179 {
180 DP(BNX2X_MSG_IOV,
181 "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d",
182 vf->abs_vfid,
183 q_idx,
184 sb_idx,
185 init_params->tx.sb_cq_index,
186 init_params->tx.hc_rate,
187 setup_params->flags,
188 setup_params->txq_params.traffic_type);
189 }
190
191 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
192 struct bnx2x_queue_init_params *init_params,
193 struct bnx2x_queue_setup_params *setup_params,
194 u16 q_idx, u16 sb_idx)
195 {
196 struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params;
197
198 DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n"
199 "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n",
200 vf->abs_vfid,
201 q_idx,
202 sb_idx,
203 init_params->rx.sb_cq_index,
204 init_params->rx.hc_rate,
205 setup_params->gen_params.mtu,
206 rxq_params->buf_sz,
207 rxq_params->sge_buf_sz,
208 rxq_params->max_sges_pkt,
209 rxq_params->tpa_agg_sz,
210 setup_params->flags,
211 rxq_params->drop_flags,
212 rxq_params->cache_line_log);
213 }
214
215 void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
216 struct bnx2x_virtf *vf,
217 struct bnx2x_vf_queue *q,
218 struct bnx2x_vfop_qctor_params *p,
219 unsigned long q_type)
220 {
221 struct bnx2x_queue_init_params *init_p = &p->qstate.params.init;
222 struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup;
223
224 /* INIT */
225
226 /* Enable host coalescing in the transition to INIT state */
227 if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags))
228 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags);
229
230 if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags))
231 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags);
232
233 /* FW SB ID */
234 init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
235 init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
236
237 /* context */
238 init_p->cxts[0] = q->cxt;
239
240 /* SETUP */
241
242 /* Setup-op general parameters */
243 setup_p->gen_params.spcl_id = vf->sp_cl_id;
244 setup_p->gen_params.stat_id = vfq_stat_id(vf, q);
245
246 /* Setup-op pause params:
247 * Nothing to do, the pause thresholds are set by default to 0 which
248 * effectively turns off the feature for this queue. We don't want
249 * one queue (VF) to interfering with another queue (another VF)
250 */
251 if (vf->cfg_flags & VF_CFG_FW_FC)
252 BNX2X_ERR("No support for pause to VFs (abs_vfid: %d)\n",
253 vf->abs_vfid);
254 /* Setup-op flags:
255 * collect statistics, zero statistics, local-switching, security,
256 * OV for Flex10, RSS and MCAST for leading
257 */
258 if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags))
259 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags);
260
261 /* for VFs, enable tx switching, bd coherency, and mac address
262 * anti-spoofing
263 */
264 __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags);
265 __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags);
266 __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
267
268 if (vfq_is_leading(q)) {
269 __set_bit(BNX2X_Q_FLG_LEADING_RSS, &setup_p->flags);
270 __set_bit(BNX2X_Q_FLG_MCAST, &setup_p->flags);
271 }
272
273 /* Setup-op rx parameters */
274 if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) {
275 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params;
276
277 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q);
278 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx);
279 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid);
280
281 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags))
282 rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES;
283 }
284
285 /* Setup-op tx parameters */
286 if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) {
287 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss;
288 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
289 }
290 }
291
292 /* VFOP queue construction */
293 static void bnx2x_vfop_qctor(struct bnx2x *bp, struct bnx2x_virtf *vf)
294 {
295 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
296 struct bnx2x_vfop_args_qctor *args = &vfop->args.qctor;
297 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
298 enum bnx2x_vfop_qctor_state state = vfop->state;
299
300 bnx2x_vfop_reset_wq(vf);
301
302 if (vfop->rc < 0)
303 goto op_err;
304
305 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
306
307 switch (state) {
308 case BNX2X_VFOP_QCTOR_INIT:
309
310 /* has this queue already been opened? */
311 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
312 BNX2X_Q_LOGICAL_STATE_ACTIVE) {
313 DP(BNX2X_MSG_IOV,
314 "Entered qctor but queue was already up. Aborting gracefully\n");
315 goto op_done;
316 }
317
318 /* next state */
319 vfop->state = BNX2X_VFOP_QCTOR_SETUP;
320
321 q_params->cmd = BNX2X_Q_CMD_INIT;
322 vfop->rc = bnx2x_queue_state_change(bp, q_params);
323
324 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
325
326 case BNX2X_VFOP_QCTOR_SETUP:
327 /* next state */
328 vfop->state = BNX2X_VFOP_QCTOR_INT_EN;
329
330 /* copy pre-prepared setup params to the queue-state params */
331 vfop->op_p->qctor.qstate.params.setup =
332 vfop->op_p->qctor.prep_qsetup;
333
334 q_params->cmd = BNX2X_Q_CMD_SETUP;
335 vfop->rc = bnx2x_queue_state_change(bp, q_params);
336
337 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
338
339 case BNX2X_VFOP_QCTOR_INT_EN:
340
341 /* enable interrupts */
342 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, args->sb_idx),
343 USTORM_ID, 0, IGU_INT_ENABLE, 0);
344 goto op_done;
345 default:
346 bnx2x_vfop_default(state);
347 }
348 op_err:
349 BNX2X_ERR("QCTOR[%d:%d] error: cmd %d, rc %d\n",
350 vf->abs_vfid, args->qid, q_params->cmd, vfop->rc);
351 op_done:
352 bnx2x_vfop_end(bp, vf, vfop);
353 op_pending:
354 return;
355 }
356
357 static int bnx2x_vfop_qctor_cmd(struct bnx2x *bp,
358 struct bnx2x_virtf *vf,
359 struct bnx2x_vfop_cmd *cmd,
360 int qid)
361 {
362 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
363
364 if (vfop) {
365 vf->op_params.qctor.qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
366
367 vfop->args.qctor.qid = qid;
368 vfop->args.qctor.sb_idx = bnx2x_vfq(vf, qid, sb_idx);
369
370 bnx2x_vfop_opset(BNX2X_VFOP_QCTOR_INIT,
371 bnx2x_vfop_qctor, cmd->done);
372 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qctor,
373 cmd->block);
374 }
375 return -ENOMEM;
376 }
377
378 /* VFOP queue destruction */
379 static void bnx2x_vfop_qdtor(struct bnx2x *bp, struct bnx2x_virtf *vf)
380 {
381 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
382 struct bnx2x_vfop_args_qdtor *qdtor = &vfop->args.qdtor;
383 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
384 enum bnx2x_vfop_qdtor_state state = vfop->state;
385
386 bnx2x_vfop_reset_wq(vf);
387
388 if (vfop->rc < 0)
389 goto op_err;
390
391 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
392
393 switch (state) {
394 case BNX2X_VFOP_QDTOR_HALT:
395
396 /* has this queue already been stopped? */
397 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
398 BNX2X_Q_LOGICAL_STATE_STOPPED) {
399 DP(BNX2X_MSG_IOV,
400 "Entered qdtor but queue was already stopped. Aborting gracefully\n");
401 goto op_done;
402 }
403
404 /* next state */
405 vfop->state = BNX2X_VFOP_QDTOR_TERMINATE;
406
407 q_params->cmd = BNX2X_Q_CMD_HALT;
408 vfop->rc = bnx2x_queue_state_change(bp, q_params);
409
410 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
411
412 case BNX2X_VFOP_QDTOR_TERMINATE:
413 /* next state */
414 vfop->state = BNX2X_VFOP_QDTOR_CFCDEL;
415
416 q_params->cmd = BNX2X_Q_CMD_TERMINATE;
417 vfop->rc = bnx2x_queue_state_change(bp, q_params);
418
419 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
420
421 case BNX2X_VFOP_QDTOR_CFCDEL:
422 /* next state */
423 vfop->state = BNX2X_VFOP_QDTOR_DONE;
424
425 q_params->cmd = BNX2X_Q_CMD_CFC_DEL;
426 vfop->rc = bnx2x_queue_state_change(bp, q_params);
427
428 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
429 op_err:
430 BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n",
431 vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc);
432 op_done:
433 case BNX2X_VFOP_QDTOR_DONE:
434 /* invalidate the context */
435 qdtor->cxt->ustorm_ag_context.cdu_usage = 0;
436 qdtor->cxt->xstorm_ag_context.cdu_reserved = 0;
437 bnx2x_vfop_end(bp, vf, vfop);
438 return;
439 default:
440 bnx2x_vfop_default(state);
441 }
442 op_pending:
443 return;
444 }
445
446 static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
447 struct bnx2x_virtf *vf,
448 struct bnx2x_vfop_cmd *cmd,
449 int qid)
450 {
451 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
452
453 if (vfop) {
454 struct bnx2x_queue_state_params *qstate =
455 &vf->op_params.qctor.qstate;
456
457 memset(qstate, 0, sizeof(*qstate));
458 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
459
460 vfop->args.qdtor.qid = qid;
461 vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt);
462
463 bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT,
464 bnx2x_vfop_qdtor, cmd->done);
465 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
466 cmd->block);
467 }
468 DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid);
469 return -ENOMEM;
470 }
471
472 static void
473 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
474 {
475 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
476 if (vf) {
477 if (!vf_sb_count(vf))
478 vf->igu_base_id = igu_sb_id;
479 ++vf_sb_count(vf);
480 }
481 }
482
483 /* VFOP MAC/VLAN helpers */
484 static inline void bnx2x_vfop_credit(struct bnx2x *bp,
485 struct bnx2x_vfop *vfop,
486 struct bnx2x_vlan_mac_obj *obj)
487 {
488 struct bnx2x_vfop_args_filters *args = &vfop->args.filters;
489
490 /* update credit only if there is no error
491 * and a valid credit counter
492 */
493 if (!vfop->rc && args->credit) {
494 int cnt = 0;
495 struct list_head *pos;
496
497 list_for_each(pos, &obj->head)
498 cnt++;
499
500 atomic_set(args->credit, cnt);
501 }
502 }
503
504 static int bnx2x_vfop_set_user_req(struct bnx2x *bp,
505 struct bnx2x_vfop_filter *pos,
506 struct bnx2x_vlan_mac_data *user_req)
507 {
508 user_req->cmd = pos->add ? BNX2X_VLAN_MAC_ADD :
509 BNX2X_VLAN_MAC_DEL;
510
511 switch (pos->type) {
512 case BNX2X_VFOP_FILTER_MAC:
513 memcpy(user_req->u.mac.mac, pos->mac, ETH_ALEN);
514 break;
515 case BNX2X_VFOP_FILTER_VLAN:
516 user_req->u.vlan.vlan = pos->vid;
517 break;
518 default:
519 BNX2X_ERR("Invalid filter type, skipping\n");
520 return 1;
521 }
522 return 0;
523 }
524
525 static int
526 bnx2x_vfop_config_vlan0(struct bnx2x *bp,
527 struct bnx2x_vlan_mac_ramrod_params *vlan_mac,
528 bool add)
529 {
530 int rc;
531
532 vlan_mac->user_req.cmd = add ? BNX2X_VLAN_MAC_ADD :
533 BNX2X_VLAN_MAC_DEL;
534 vlan_mac->user_req.u.vlan.vlan = 0;
535
536 rc = bnx2x_config_vlan_mac(bp, vlan_mac);
537 if (rc == -EEXIST)
538 rc = 0;
539 return rc;
540 }
541
542 static int bnx2x_vfop_config_list(struct bnx2x *bp,
543 struct bnx2x_vfop_filters *filters,
544 struct bnx2x_vlan_mac_ramrod_params *vlan_mac)
545 {
546 struct bnx2x_vfop_filter *pos, *tmp;
547 struct list_head rollback_list, *filters_list = &filters->head;
548 struct bnx2x_vlan_mac_data *user_req = &vlan_mac->user_req;
549 int rc = 0, cnt = 0;
550
551 INIT_LIST_HEAD(&rollback_list);
552
553 list_for_each_entry_safe(pos, tmp, filters_list, link) {
554 if (bnx2x_vfop_set_user_req(bp, pos, user_req))
555 continue;
556
557 rc = bnx2x_config_vlan_mac(bp, vlan_mac);
558 if (rc >= 0) {
559 cnt += pos->add ? 1 : -1;
560 list_move(&pos->link, &rollback_list);
561 rc = 0;
562 } else if (rc == -EEXIST) {
563 rc = 0;
564 } else {
565 BNX2X_ERR("Failed to add a new vlan_mac command\n");
566 break;
567 }
568 }
569
570 /* rollback if error or too many rules added */
571 if (rc || cnt > filters->add_cnt) {
572 BNX2X_ERR("error or too many rules added. Performing rollback\n");
573 list_for_each_entry_safe(pos, tmp, &rollback_list, link) {
574 pos->add = !pos->add; /* reverse op */
575 bnx2x_vfop_set_user_req(bp, pos, user_req);
576 bnx2x_config_vlan_mac(bp, vlan_mac);
577 list_del(&pos->link);
578 }
579 cnt = 0;
580 if (!rc)
581 rc = -EINVAL;
582 }
583 filters->add_cnt = cnt;
584 return rc;
585 }
586
587 /* VFOP set VLAN/MAC */
588 static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
589 {
590 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
591 struct bnx2x_vlan_mac_ramrod_params *vlan_mac = &vfop->op_p->vlan_mac;
592 struct bnx2x_vlan_mac_obj *obj = vlan_mac->vlan_mac_obj;
593 struct bnx2x_vfop_filters *filters = vfop->args.filters.multi_filter;
594
595 enum bnx2x_vfop_vlan_mac_state state = vfop->state;
596
597 if (vfop->rc < 0)
598 goto op_err;
599
600 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
601
602 bnx2x_vfop_reset_wq(vf);
603
604 switch (state) {
605 case BNX2X_VFOP_VLAN_MAC_CLEAR:
606 /* next state */
607 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
608
609 /* do delete */
610 vfop->rc = obj->delete_all(bp, obj,
611 &vlan_mac->user_req.vlan_mac_flags,
612 &vlan_mac->ramrod_flags);
613
614 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
615
616 case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE:
617 /* next state */
618 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
619
620 /* do config */
621 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
622 if (vfop->rc == -EEXIST)
623 vfop->rc = 0;
624
625 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
626
627 case BNX2X_VFOP_VLAN_MAC_CHK_DONE:
628 vfop->rc = !!obj->raw.check_pending(&obj->raw);
629 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
630
631 case BNX2X_VFOP_MAC_CONFIG_LIST:
632 /* next state */
633 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
634
635 /* do list config */
636 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
637 if (vfop->rc)
638 goto op_err;
639
640 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
641 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
642 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
643
644 case BNX2X_VFOP_VLAN_CONFIG_LIST:
645 /* next state */
646 vfop->state = BNX2X_VFOP_VLAN_CONFIG_LIST_0;
647
648 /* remove vlan0 - could be no-op */
649 vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, false);
650 if (vfop->rc)
651 goto op_err;
652
653 /* Do vlan list config. if this operation fails we try to
654 * restore vlan0 to keep the queue is working order
655 */
656 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
657 if (!vfop->rc) {
658 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
659 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
660 }
661 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); /* fall-through */
662
663 case BNX2X_VFOP_VLAN_CONFIG_LIST_0:
664 /* next state */
665 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
666
667 if (list_empty(&obj->head))
668 /* add vlan0 */
669 vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, true);
670 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
671
672 default:
673 bnx2x_vfop_default(state);
674 }
675 op_err:
676 BNX2X_ERR("VLAN-MAC error: rc %d\n", vfop->rc);
677 op_done:
678 kfree(filters);
679 bnx2x_vfop_credit(bp, vfop, obj);
680 bnx2x_vfop_end(bp, vf, vfop);
681 op_pending:
682 return;
683 }
684
685 struct bnx2x_vfop_vlan_mac_flags {
686 bool drv_only;
687 bool dont_consume;
688 bool single_cmd;
689 bool add;
690 };
691
692 static void
693 bnx2x_vfop_vlan_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
694 struct bnx2x_vfop_vlan_mac_flags *flags)
695 {
696 struct bnx2x_vlan_mac_data *ureq = &ramrod->user_req;
697
698 memset(ramrod, 0, sizeof(*ramrod));
699
700 /* ramrod flags */
701 if (flags->drv_only)
702 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod->ramrod_flags);
703 if (flags->single_cmd)
704 set_bit(RAMROD_EXEC, &ramrod->ramrod_flags);
705
706 /* mac_vlan flags */
707 if (flags->dont_consume)
708 set_bit(BNX2X_DONT_CONSUME_CAM_CREDIT, &ureq->vlan_mac_flags);
709
710 /* cmd */
711 ureq->cmd = flags->add ? BNX2X_VLAN_MAC_ADD : BNX2X_VLAN_MAC_DEL;
712 }
713
714 static inline void
715 bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
716 struct bnx2x_vfop_vlan_mac_flags *flags)
717 {
718 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, flags);
719 set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags);
720 }
721
722 static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp,
723 struct bnx2x_virtf *vf,
724 struct bnx2x_vfop_cmd *cmd,
725 int qid, bool drv_only)
726 {
727 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
728
729 if (vfop) {
730 struct bnx2x_vfop_args_filters filters = {
731 .multi_filter = NULL, /* single */
732 .credit = NULL, /* consume credit */
733 };
734 struct bnx2x_vfop_vlan_mac_flags flags = {
735 .drv_only = drv_only,
736 .dont_consume = (filters.credit != NULL),
737 .single_cmd = true,
738 .add = false /* don't care */,
739 };
740 struct bnx2x_vlan_mac_ramrod_params *ramrod =
741 &vf->op_params.vlan_mac;
742
743 /* set ramrod params */
744 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
745
746 /* set object */
747 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
748
749 /* set extra args */
750 vfop->args.filters = filters;
751
752 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
753 bnx2x_vfop_vlan_mac, cmd->done);
754 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
755 cmd->block);
756 }
757 return -ENOMEM;
758 }
759
760 int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
761 struct bnx2x_virtf *vf,
762 struct bnx2x_vfop_cmd *cmd,
763 struct bnx2x_vfop_filters *macs,
764 int qid, bool drv_only)
765 {
766 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
767
768 if (vfop) {
769 struct bnx2x_vfop_args_filters filters = {
770 .multi_filter = macs,
771 .credit = NULL, /* consume credit */
772 };
773 struct bnx2x_vfop_vlan_mac_flags flags = {
774 .drv_only = drv_only,
775 .dont_consume = (filters.credit != NULL),
776 .single_cmd = false,
777 .add = false, /* don't care since only the items in the
778 * filters list affect the sp operation,
779 * not the list itself
780 */
781 };
782 struct bnx2x_vlan_mac_ramrod_params *ramrod =
783 &vf->op_params.vlan_mac;
784
785 /* set ramrod params */
786 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
787
788 /* set object */
789 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
790
791 /* set extra args */
792 filters.multi_filter->add_cnt = BNX2X_VFOP_FILTER_ADD_CNT_MAX;
793 vfop->args.filters = filters;
794
795 bnx2x_vfop_opset(BNX2X_VFOP_MAC_CONFIG_LIST,
796 bnx2x_vfop_vlan_mac, cmd->done);
797 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
798 cmd->block);
799 }
800 return -ENOMEM;
801 }
802
803 int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
804 struct bnx2x_virtf *vf,
805 struct bnx2x_vfop_cmd *cmd,
806 int qid, u16 vid, bool add)
807 {
808 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
809
810 if (vfop) {
811 struct bnx2x_vfop_args_filters filters = {
812 .multi_filter = NULL, /* single command */
813 .credit = &bnx2x_vfq(vf, qid, vlan_count),
814 };
815 struct bnx2x_vfop_vlan_mac_flags flags = {
816 .drv_only = false,
817 .dont_consume = (filters.credit != NULL),
818 .single_cmd = true,
819 .add = add,
820 };
821 struct bnx2x_vlan_mac_ramrod_params *ramrod =
822 &vf->op_params.vlan_mac;
823
824 /* set ramrod params */
825 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
826 ramrod->user_req.u.vlan.vlan = vid;
827
828 /* set object */
829 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
830
831 /* set extra args */
832 vfop->args.filters = filters;
833
834 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
835 bnx2x_vfop_vlan_mac, cmd->done);
836 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
837 cmd->block);
838 }
839 return -ENOMEM;
840 }
841
842 static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp,
843 struct bnx2x_virtf *vf,
844 struct bnx2x_vfop_cmd *cmd,
845 int qid, bool drv_only)
846 {
847 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
848
849 if (vfop) {
850 struct bnx2x_vfop_args_filters filters = {
851 .multi_filter = NULL, /* single command */
852 .credit = &bnx2x_vfq(vf, qid, vlan_count),
853 };
854 struct bnx2x_vfop_vlan_mac_flags flags = {
855 .drv_only = drv_only,
856 .dont_consume = (filters.credit != NULL),
857 .single_cmd = true,
858 .add = false, /* don't care */
859 };
860 struct bnx2x_vlan_mac_ramrod_params *ramrod =
861 &vf->op_params.vlan_mac;
862
863 /* set ramrod params */
864 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
865
866 /* set object */
867 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
868
869 /* set extra args */
870 vfop->args.filters = filters;
871
872 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
873 bnx2x_vfop_vlan_mac, cmd->done);
874 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
875 cmd->block);
876 }
877 return -ENOMEM;
878 }
879
880 int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
881 struct bnx2x_virtf *vf,
882 struct bnx2x_vfop_cmd *cmd,
883 struct bnx2x_vfop_filters *vlans,
884 int qid, bool drv_only)
885 {
886 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
887
888 if (vfop) {
889 struct bnx2x_vfop_args_filters filters = {
890 .multi_filter = vlans,
891 .credit = &bnx2x_vfq(vf, qid, vlan_count),
892 };
893 struct bnx2x_vfop_vlan_mac_flags flags = {
894 .drv_only = drv_only,
895 .dont_consume = (filters.credit != NULL),
896 .single_cmd = false,
897 .add = false, /* don't care */
898 };
899 struct bnx2x_vlan_mac_ramrod_params *ramrod =
900 &vf->op_params.vlan_mac;
901
902 /* set ramrod params */
903 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
904
905 /* set object */
906 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
907
908 /* set extra args */
909 filters.multi_filter->add_cnt = vf_vlan_rules_cnt(vf) -
910 atomic_read(filters.credit);
911
912 vfop->args.filters = filters;
913
914 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_CONFIG_LIST,
915 bnx2x_vfop_vlan_mac, cmd->done);
916 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
917 cmd->block);
918 }
919 return -ENOMEM;
920 }
921
922 /* VFOP queue setup (queue constructor + set vlan 0) */
923 static void bnx2x_vfop_qsetup(struct bnx2x *bp, struct bnx2x_virtf *vf)
924 {
925 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
926 int qid = vfop->args.qctor.qid;
927 enum bnx2x_vfop_qsetup_state state = vfop->state;
928 struct bnx2x_vfop_cmd cmd = {
929 .done = bnx2x_vfop_qsetup,
930 .block = false,
931 };
932
933 if (vfop->rc < 0)
934 goto op_err;
935
936 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
937
938 switch (state) {
939 case BNX2X_VFOP_QSETUP_CTOR:
940 /* init the queue ctor command */
941 vfop->state = BNX2X_VFOP_QSETUP_VLAN0;
942 vfop->rc = bnx2x_vfop_qctor_cmd(bp, vf, &cmd, qid);
943 if (vfop->rc)
944 goto op_err;
945 return;
946
947 case BNX2X_VFOP_QSETUP_VLAN0:
948 /* skip if non-leading or FPGA/EMU*/
949 if (qid)
950 goto op_done;
951
952 /* init the queue set-vlan command (for vlan 0) */
953 vfop->state = BNX2X_VFOP_QSETUP_DONE;
954 vfop->rc = bnx2x_vfop_vlan_set_cmd(bp, vf, &cmd, qid, 0, true);
955 if (vfop->rc)
956 goto op_err;
957 return;
958 op_err:
959 BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, vfop->rc);
960 op_done:
961 case BNX2X_VFOP_QSETUP_DONE:
962 vf->cfg_flags |= VF_CFG_VLAN;
963 smp_mb__before_clear_bit();
964 set_bit(BNX2X_SP_RTNL_HYPERVISOR_VLAN,
965 &bp->sp_rtnl_state);
966 smp_mb__after_clear_bit();
967 schedule_delayed_work(&bp->sp_rtnl_task, 0);
968 bnx2x_vfop_end(bp, vf, vfop);
969 return;
970 default:
971 bnx2x_vfop_default(state);
972 }
973 }
974
975 int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp,
976 struct bnx2x_virtf *vf,
977 struct bnx2x_vfop_cmd *cmd,
978 int qid)
979 {
980 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
981
982 if (vfop) {
983 vfop->args.qctor.qid = qid;
984
985 bnx2x_vfop_opset(BNX2X_VFOP_QSETUP_CTOR,
986 bnx2x_vfop_qsetup, cmd->done);
987 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qsetup,
988 cmd->block);
989 }
990 return -ENOMEM;
991 }
992
993 /* VFOP queue FLR handling (clear vlans, clear macs, queue destructor) */
994 static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf)
995 {
996 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
997 int qid = vfop->args.qx.qid;
998 enum bnx2x_vfop_qflr_state state = vfop->state;
999 struct bnx2x_queue_state_params *qstate;
1000 struct bnx2x_vfop_cmd cmd;
1001
1002 bnx2x_vfop_reset_wq(vf);
1003
1004 if (vfop->rc < 0)
1005 goto op_err;
1006
1007 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %d\n", vf->abs_vfid, state);
1008
1009 cmd.done = bnx2x_vfop_qflr;
1010 cmd.block = false;
1011
1012 switch (state) {
1013 case BNX2X_VFOP_QFLR_CLR_VLAN:
1014 /* vlan-clear-all: driver-only, don't consume credit */
1015 vfop->state = BNX2X_VFOP_QFLR_CLR_MAC;
1016 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, true);
1017 if (vfop->rc)
1018 goto op_err;
1019 return;
1020
1021 case BNX2X_VFOP_QFLR_CLR_MAC:
1022 /* mac-clear-all: driver only consume credit */
1023 vfop->state = BNX2X_VFOP_QFLR_TERMINATE;
1024 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, true);
1025 DP(BNX2X_MSG_IOV,
1026 "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d",
1027 vf->abs_vfid, vfop->rc);
1028 if (vfop->rc)
1029 goto op_err;
1030 return;
1031
1032 case BNX2X_VFOP_QFLR_TERMINATE:
1033 qstate = &vfop->op_p->qctor.qstate;
1034 memset(qstate , 0, sizeof(*qstate));
1035 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
1036 vfop->state = BNX2X_VFOP_QFLR_DONE;
1037
1038 DP(BNX2X_MSG_IOV, "VF[%d] qstate during flr was %d\n",
1039 vf->abs_vfid, qstate->q_obj->state);
1040
1041 if (qstate->q_obj->state != BNX2X_Q_STATE_RESET) {
1042 qstate->q_obj->state = BNX2X_Q_STATE_STOPPED;
1043 qstate->cmd = BNX2X_Q_CMD_TERMINATE;
1044 vfop->rc = bnx2x_queue_state_change(bp, qstate);
1045 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_VERIFY_PEND);
1046 } else {
1047 goto op_done;
1048 }
1049
1050 op_err:
1051 BNX2X_ERR("QFLR[%d:%d] error: rc %d\n",
1052 vf->abs_vfid, qid, vfop->rc);
1053 op_done:
1054 case BNX2X_VFOP_QFLR_DONE:
1055 bnx2x_vfop_end(bp, vf, vfop);
1056 return;
1057 default:
1058 bnx2x_vfop_default(state);
1059 }
1060 op_pending:
1061 return;
1062 }
1063
1064 static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp,
1065 struct bnx2x_virtf *vf,
1066 struct bnx2x_vfop_cmd *cmd,
1067 int qid)
1068 {
1069 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1070
1071 if (vfop) {
1072 vfop->args.qx.qid = qid;
1073 bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN,
1074 bnx2x_vfop_qflr, cmd->done);
1075 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr,
1076 cmd->block);
1077 }
1078 return -ENOMEM;
1079 }
1080
1081 /* VFOP multi-casts */
1082 static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf)
1083 {
1084 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1085 struct bnx2x_mcast_ramrod_params *mcast = &vfop->op_p->mcast;
1086 struct bnx2x_raw_obj *raw = &mcast->mcast_obj->raw;
1087 struct bnx2x_vfop_args_mcast *args = &vfop->args.mc_list;
1088 enum bnx2x_vfop_mcast_state state = vfop->state;
1089 int i;
1090
1091 bnx2x_vfop_reset_wq(vf);
1092
1093 if (vfop->rc < 0)
1094 goto op_err;
1095
1096 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1097
1098 switch (state) {
1099 case BNX2X_VFOP_MCAST_DEL:
1100 /* clear existing mcasts */
1101 vfop->state = BNX2X_VFOP_MCAST_ADD;
1102 vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL);
1103 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1104
1105 case BNX2X_VFOP_MCAST_ADD:
1106 if (raw->check_pending(raw))
1107 goto op_pending;
1108
1109 if (args->mc_num) {
1110 /* update mcast list on the ramrod params */
1111 INIT_LIST_HEAD(&mcast->mcast_list);
1112 for (i = 0; i < args->mc_num; i++)
1113 list_add_tail(&(args->mc[i].link),
1114 &mcast->mcast_list);
1115 /* add new mcasts */
1116 vfop->state = BNX2X_VFOP_MCAST_CHK_DONE;
1117 vfop->rc = bnx2x_config_mcast(bp, mcast,
1118 BNX2X_MCAST_CMD_ADD);
1119 }
1120 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1121
1122 case BNX2X_VFOP_MCAST_CHK_DONE:
1123 vfop->rc = raw->check_pending(raw) ? 1 : 0;
1124 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1125 default:
1126 bnx2x_vfop_default(state);
1127 }
1128 op_err:
1129 BNX2X_ERR("MCAST CONFIG error: rc %d\n", vfop->rc);
1130 op_done:
1131 kfree(args->mc);
1132 bnx2x_vfop_end(bp, vf, vfop);
1133 op_pending:
1134 return;
1135 }
1136
1137 int bnx2x_vfop_mcast_cmd(struct bnx2x *bp,
1138 struct bnx2x_virtf *vf,
1139 struct bnx2x_vfop_cmd *cmd,
1140 bnx2x_mac_addr_t *mcasts,
1141 int mcast_num, bool drv_only)
1142 {
1143 struct bnx2x_vfop *vfop = NULL;
1144 size_t mc_sz = mcast_num * sizeof(struct bnx2x_mcast_list_elem);
1145 struct bnx2x_mcast_list_elem *mc = mc_sz ? kzalloc(mc_sz, GFP_KERNEL) :
1146 NULL;
1147
1148 if (!mc_sz || mc) {
1149 vfop = bnx2x_vfop_add(bp, vf);
1150 if (vfop) {
1151 int i;
1152 struct bnx2x_mcast_ramrod_params *ramrod =
1153 &vf->op_params.mcast;
1154
1155 /* set ramrod params */
1156 memset(ramrod, 0, sizeof(*ramrod));
1157 ramrod->mcast_obj = &vf->mcast_obj;
1158 if (drv_only)
1159 set_bit(RAMROD_DRV_CLR_ONLY,
1160 &ramrod->ramrod_flags);
1161
1162 /* copy mcasts pointers */
1163 vfop->args.mc_list.mc_num = mcast_num;
1164 vfop->args.mc_list.mc = mc;
1165 for (i = 0; i < mcast_num; i++)
1166 mc[i].mac = mcasts[i];
1167
1168 bnx2x_vfop_opset(BNX2X_VFOP_MCAST_DEL,
1169 bnx2x_vfop_mcast, cmd->done);
1170 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mcast,
1171 cmd->block);
1172 } else {
1173 kfree(mc);
1174 }
1175 }
1176 return -ENOMEM;
1177 }
1178
1179 /* VFOP rx-mode */
1180 static void bnx2x_vfop_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf)
1181 {
1182 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1183 struct bnx2x_rx_mode_ramrod_params *ramrod = &vfop->op_p->rx_mode;
1184 enum bnx2x_vfop_rxmode_state state = vfop->state;
1185
1186 bnx2x_vfop_reset_wq(vf);
1187
1188 if (vfop->rc < 0)
1189 goto op_err;
1190
1191 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1192
1193 switch (state) {
1194 case BNX2X_VFOP_RXMODE_CONFIG:
1195 /* next state */
1196 vfop->state = BNX2X_VFOP_RXMODE_DONE;
1197
1198 vfop->rc = bnx2x_config_rx_mode(bp, ramrod);
1199 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1200 op_err:
1201 BNX2X_ERR("RXMODE error: rc %d\n", vfop->rc);
1202 op_done:
1203 case BNX2X_VFOP_RXMODE_DONE:
1204 bnx2x_vfop_end(bp, vf, vfop);
1205 return;
1206 default:
1207 bnx2x_vfop_default(state);
1208 }
1209 op_pending:
1210 return;
1211 }
1212
1213 int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp,
1214 struct bnx2x_virtf *vf,
1215 struct bnx2x_vfop_cmd *cmd,
1216 int qid, unsigned long accept_flags)
1217 {
1218 struct bnx2x_vf_queue *vfq = vfq_get(vf, qid);
1219 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1220
1221 if (vfop) {
1222 struct bnx2x_rx_mode_ramrod_params *ramrod =
1223 &vf->op_params.rx_mode;
1224
1225 memset(ramrod, 0, sizeof(*ramrod));
1226
1227 /* Prepare ramrod parameters */
1228 ramrod->cid = vfq->cid;
1229 ramrod->cl_id = vfq_cl_id(vf, vfq);
1230 ramrod->rx_mode_obj = &bp->rx_mode_obj;
1231 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid);
1232
1233 ramrod->rx_accept_flags = accept_flags;
1234 ramrod->tx_accept_flags = accept_flags;
1235 ramrod->pstate = &vf->filter_state;
1236 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING;
1237
1238 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
1239 set_bit(RAMROD_RX, &ramrod->ramrod_flags);
1240 set_bit(RAMROD_TX, &ramrod->ramrod_flags);
1241
1242 ramrod->rdata =
1243 bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2);
1244 ramrod->rdata_mapping =
1245 bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2);
1246
1247 bnx2x_vfop_opset(BNX2X_VFOP_RXMODE_CONFIG,
1248 bnx2x_vfop_rxmode, cmd->done);
1249 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rxmode,
1250 cmd->block);
1251 }
1252 return -ENOMEM;
1253 }
1254
1255 /* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs,
1256 * queue destructor)
1257 */
1258 static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf)
1259 {
1260 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1261 int qid = vfop->args.qx.qid;
1262 enum bnx2x_vfop_qteardown_state state = vfop->state;
1263 struct bnx2x_vfop_cmd cmd;
1264
1265 if (vfop->rc < 0)
1266 goto op_err;
1267
1268 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1269
1270 cmd.done = bnx2x_vfop_qdown;
1271 cmd.block = false;
1272
1273 switch (state) {
1274 case BNX2X_VFOP_QTEARDOWN_RXMODE:
1275 /* Drop all */
1276 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN;
1277 vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0);
1278 if (vfop->rc)
1279 goto op_err;
1280 return;
1281
1282 case BNX2X_VFOP_QTEARDOWN_CLR_VLAN:
1283 /* vlan-clear-all: don't consume credit */
1284 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC;
1285 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false);
1286 if (vfop->rc)
1287 goto op_err;
1288 return;
1289
1290 case BNX2X_VFOP_QTEARDOWN_CLR_MAC:
1291 /* mac-clear-all: consume credit */
1292 vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
1293 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false);
1294 if (vfop->rc)
1295 goto op_err;
1296 return;
1297
1298 case BNX2X_VFOP_QTEARDOWN_QDTOR:
1299 /* run the queue destruction flow */
1300 DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n");
1301 vfop->state = BNX2X_VFOP_QTEARDOWN_DONE;
1302 DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n");
1303 vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid);
1304 DP(BNX2X_MSG_IOV, "returned from cmd\n");
1305 if (vfop->rc)
1306 goto op_err;
1307 return;
1308 op_err:
1309 BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n",
1310 vf->abs_vfid, qid, vfop->rc);
1311
1312 case BNX2X_VFOP_QTEARDOWN_DONE:
1313 bnx2x_vfop_end(bp, vf, vfop);
1314 return;
1315 default:
1316 bnx2x_vfop_default(state);
1317 }
1318 }
1319
1320 int bnx2x_vfop_qdown_cmd(struct bnx2x *bp,
1321 struct bnx2x_virtf *vf,
1322 struct bnx2x_vfop_cmd *cmd,
1323 int qid)
1324 {
1325 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1326
1327 if (vfop) {
1328 vfop->args.qx.qid = qid;
1329 bnx2x_vfop_opset(BNX2X_VFOP_QTEARDOWN_RXMODE,
1330 bnx2x_vfop_qdown, cmd->done);
1331 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown,
1332 cmd->block);
1333 }
1334
1335 return -ENOMEM;
1336 }
1337
1338 /* VF enable primitives
1339 * when pretend is required the caller is responsible
1340 * for calling pretend prior to calling these routines
1341 */
1342
1343 /* internal vf enable - until vf is enabled internally all transactions
1344 * are blocked. This routine should always be called last with pretend.
1345 */
1346 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
1347 {
1348 REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0);
1349 }
1350
1351 /* clears vf error in all semi blocks */
1352 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid)
1353 {
1354 REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid);
1355 REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid);
1356 REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid);
1357 REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid);
1358 }
1359
1360 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid)
1361 {
1362 u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5;
1363 u32 was_err_reg = 0;
1364
1365 switch (was_err_group) {
1366 case 0:
1367 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR;
1368 break;
1369 case 1:
1370 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR;
1371 break;
1372 case 2:
1373 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR;
1374 break;
1375 case 3:
1376 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR;
1377 break;
1378 }
1379 REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f));
1380 }
1381
1382 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
1383 {
1384 int i;
1385 u32 val;
1386
1387 /* Set VF masks and configuration - pretend */
1388 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1389
1390 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
1391 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
1392 REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
1393 REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
1394 REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
1395 REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
1396
1397 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
1398 val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN);
1399 if (vf->cfg_flags & VF_CFG_INT_SIMD)
1400 val |= IGU_VF_CONF_SINGLE_ISR_EN;
1401 val &= ~IGU_VF_CONF_PARENT_MASK;
1402 val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */
1403 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
1404
1405 DP(BNX2X_MSG_IOV,
1406 "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n",
1407 vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION));
1408
1409 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1410
1411 /* iterate over all queues, clear sb consumer */
1412 for (i = 0; i < vf_sb_count(vf); i++) {
1413 u8 igu_sb_id = vf_igu_sb(vf, i);
1414
1415 /* zero prod memory */
1416 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0);
1417
1418 /* clear sb state machine */
1419 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id,
1420 false /* VF */);
1421
1422 /* disable + update */
1423 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0,
1424 IGU_INT_DISABLE, 1);
1425 }
1426 }
1427
1428 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
1429 {
1430 /* set the VF-PF association in the FW */
1431 storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
1432 storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
1433
1434 /* clear vf errors*/
1435 bnx2x_vf_semi_clear_err(bp, abs_vfid);
1436 bnx2x_vf_pglue_clear_err(bp, abs_vfid);
1437
1438 /* internal vf-enable - pretend */
1439 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid));
1440 DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid);
1441 bnx2x_vf_enable_internal(bp, true);
1442 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1443 }
1444
1445 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)
1446 {
1447 /* Reset vf in IGU interrupts are still disabled */
1448 bnx2x_vf_igu_reset(bp, vf);
1449
1450 /* pretend to enable the vf with the PBF */
1451 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1452 REG_WR(bp, PBF_REG_DISABLE_VF, 0);
1453 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1454 }
1455
1456 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
1457 {
1458 struct pci_dev *dev;
1459 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
1460
1461 if (!vf)
1462 return false;
1463
1464 dev = pci_get_bus_and_slot(vf->bus, vf->devfn);
1465 if (dev)
1466 return bnx2x_is_pcie_pending(dev);
1467 return false;
1468 }
1469
1470 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
1471 {
1472 /* Verify no pending pci transactions */
1473 if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
1474 BNX2X_ERR("PCIE Transactions still pending\n");
1475
1476 return 0;
1477 }
1478
1479 /* must be called after the number of PF queues and the number of VFs are
1480 * both known
1481 */
1482 static void
1483 bnx2x_iov_static_resc(struct bnx2x *bp, struct vf_pf_resc_request *resc)
1484 {
1485 u16 vlan_count = 0;
1486
1487 /* will be set only during VF-ACQUIRE */
1488 resc->num_rxqs = 0;
1489 resc->num_txqs = 0;
1490
1491 /* no credit calculcis for macs (just yet) */
1492 resc->num_mac_filters = 1;
1493
1494 /* divvy up vlan rules */
1495 vlan_count = bp->vlans_pool.check(&bp->vlans_pool);
1496 vlan_count = 1 << ilog2(vlan_count);
1497 resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp);
1498
1499 /* no real limitation */
1500 resc->num_mc_filters = 0;
1501
1502 /* num_sbs already set */
1503 }
1504
1505 /* FLR routines: */
1506 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1507 {
1508 /* reset the state variables */
1509 bnx2x_iov_static_resc(bp, &vf->alloc_resc);
1510 vf->state = VF_FREE;
1511 }
1512
1513 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf)
1514 {
1515 u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
1516
1517 /* DQ usage counter */
1518 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1519 bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT,
1520 "DQ VF usage counter timed out",
1521 poll_cnt);
1522 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1523
1524 /* FW cleanup command - poll for the results */
1525 if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid),
1526 poll_cnt))
1527 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid);
1528
1529 /* verify TX hw is flushed */
1530 bnx2x_tx_hw_flushed(bp, poll_cnt);
1531 }
1532
1533 static void bnx2x_vfop_flr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1534 {
1535 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1536 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
1537 enum bnx2x_vfop_flr_state state = vfop->state;
1538 struct bnx2x_vfop_cmd cmd = {
1539 .done = bnx2x_vfop_flr,
1540 .block = false,
1541 };
1542
1543 if (vfop->rc < 0)
1544 goto op_err;
1545
1546 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1547
1548 switch (state) {
1549 case BNX2X_VFOP_FLR_QUEUES:
1550 /* the cleanup operations are valid if and only if the VF
1551 * was first acquired.
1552 */
1553 if (++(qx->qid) < vf_rxq_count(vf)) {
1554 vfop->rc = bnx2x_vfop_qflr_cmd(bp, vf, &cmd,
1555 qx->qid);
1556 if (vfop->rc)
1557 goto op_err;
1558 return;
1559 }
1560 /* remove multicasts */
1561 vfop->state = BNX2X_VFOP_FLR_HW;
1562 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL,
1563 0, true);
1564 if (vfop->rc)
1565 goto op_err;
1566 return;
1567 case BNX2X_VFOP_FLR_HW:
1568
1569 /* dispatch final cleanup and wait for HW queues to flush */
1570 bnx2x_vf_flr_clnup_hw(bp, vf);
1571
1572 /* release VF resources */
1573 bnx2x_vf_free_resc(bp, vf);
1574
1575 /* re-open the mailbox */
1576 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
1577
1578 goto op_done;
1579 default:
1580 bnx2x_vfop_default(state);
1581 }
1582 op_err:
1583 BNX2X_ERR("VF[%d] FLR error: rc %d\n", vf->abs_vfid, vfop->rc);
1584 op_done:
1585 vf->flr_clnup_stage = VF_FLR_ACK;
1586 bnx2x_vfop_end(bp, vf, vfop);
1587 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1588 }
1589
1590 static int bnx2x_vfop_flr_cmd(struct bnx2x *bp,
1591 struct bnx2x_virtf *vf,
1592 vfop_handler_t done)
1593 {
1594 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1595 if (vfop) {
1596 vfop->args.qx.qid = -1; /* loop */
1597 bnx2x_vfop_opset(BNX2X_VFOP_FLR_QUEUES,
1598 bnx2x_vfop_flr, done);
1599 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_flr, false);
1600 }
1601 return -ENOMEM;
1602 }
1603
1604 static void bnx2x_vf_flr_clnup(struct bnx2x *bp, struct bnx2x_virtf *prev_vf)
1605 {
1606 int i = prev_vf ? prev_vf->index + 1 : 0;
1607 struct bnx2x_virtf *vf;
1608
1609 /* find next VF to cleanup */
1610 next_vf_to_clean:
1611 for (;
1612 i < BNX2X_NR_VIRTFN(bp) &&
1613 (bnx2x_vf(bp, i, state) != VF_RESET ||
1614 bnx2x_vf(bp, i, flr_clnup_stage) != VF_FLR_CLN);
1615 i++)
1616 ;
1617
1618 DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n", i,
1619 BNX2X_NR_VIRTFN(bp));
1620
1621 if (i < BNX2X_NR_VIRTFN(bp)) {
1622 vf = BP_VF(bp, i);
1623
1624 /* lock the vf pf channel */
1625 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1626
1627 /* invoke the VF FLR SM */
1628 if (bnx2x_vfop_flr_cmd(bp, vf, bnx2x_vf_flr_clnup)) {
1629 BNX2X_ERR("VF[%d]: FLR cleanup failed -ENOMEM\n",
1630 vf->abs_vfid);
1631
1632 /* mark the VF to be ACKED and continue */
1633 vf->flr_clnup_stage = VF_FLR_ACK;
1634 goto next_vf_to_clean;
1635 }
1636 return;
1637 }
1638
1639 /* we are done, update vf records */
1640 for_each_vf(bp, i) {
1641 vf = BP_VF(bp, i);
1642
1643 if (vf->flr_clnup_stage != VF_FLR_ACK)
1644 continue;
1645
1646 vf->flr_clnup_stage = VF_FLR_EPILOG;
1647 }
1648
1649 /* Acknowledge the handled VFs.
1650 * we are acknowledge all the vfs which an flr was requested for, even
1651 * if amongst them there are such that we never opened, since the mcp
1652 * will interrupt us immediately again if we only ack some of the bits,
1653 * resulting in an endless loop. This can happen for example in KVM
1654 * where an 'all ones' flr request is sometimes given by hyper visor
1655 */
1656 DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n",
1657 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1658 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1659 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i],
1660 bp->vfdb->flrd_vfs[i]);
1661
1662 bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0);
1663
1664 /* clear the acked bits - better yet if the MCP implemented
1665 * write to clear semantics
1666 */
1667 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1668 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0);
1669 }
1670
1671 void bnx2x_vf_handle_flr_event(struct bnx2x *bp)
1672 {
1673 int i;
1674
1675 /* Read FLR'd VFs */
1676 for (i = 0; i < FLRD_VFS_DWORDS; i++)
1677 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]);
1678
1679 DP(BNX2X_MSG_MCP,
1680 "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n",
1681 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1682
1683 for_each_vf(bp, i) {
1684 struct bnx2x_virtf *vf = BP_VF(bp, i);
1685 u32 reset = 0;
1686
1687 if (vf->abs_vfid < 32)
1688 reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid);
1689 else
1690 reset = bp->vfdb->flrd_vfs[1] &
1691 (1 << (vf->abs_vfid - 32));
1692
1693 if (reset) {
1694 /* set as reset and ready for cleanup */
1695 vf->state = VF_RESET;
1696 vf->flr_clnup_stage = VF_FLR_CLN;
1697
1698 DP(BNX2X_MSG_IOV,
1699 "Initiating Final cleanup for VF %d\n",
1700 vf->abs_vfid);
1701 }
1702 }
1703
1704 /* do the FLR cleanup for all marked VFs*/
1705 bnx2x_vf_flr_clnup(bp, NULL);
1706 }
1707
1708 /* IOV global initialization routines */
1709 void bnx2x_iov_init_dq(struct bnx2x *bp)
1710 {
1711 if (!IS_SRIOV(bp))
1712 return;
1713
1714 /* Set the DQ such that the CID reflect the abs_vfid */
1715 REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0);
1716 REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS));
1717
1718 /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to
1719 * the PF L2 queues
1720 */
1721 REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID);
1722
1723 /* The VF window size is the log2 of the max number of CIDs per VF */
1724 REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND);
1725
1726 /* The VF doorbell size 0 - *B, 4 - 128B. We set it here to match
1727 * the Pf doorbell size although the 2 are independent.
1728 */
1729 REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST,
1730 BNX2X_DB_SHIFT - BNX2X_DB_MIN_SHIFT);
1731
1732 /* No security checks for now -
1733 * configure single rule (out of 16) mask = 0x1, value = 0x0,
1734 * CID range 0 - 0x1ffff
1735 */
1736 REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1);
1737 REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0);
1738 REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0);
1739 REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff);
1740
1741 /* set the number of VF allowed doorbells to the full DQ range */
1742 REG_WR(bp, DORQ_REG_VF_NORM_MAX_CID_COUNT, 0x20000);
1743
1744 /* set the VF doorbell threshold */
1745 REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 4);
1746 }
1747
1748 void bnx2x_iov_init_dmae(struct bnx2x *bp)
1749 {
1750 DP(BNX2X_MSG_IOV, "SRIOV is %s\n", IS_SRIOV(bp) ? "ON" : "OFF");
1751 if (!IS_SRIOV(bp))
1752 return;
1753
1754 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
1755 }
1756
1757 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
1758 {
1759 struct pci_dev *dev = bp->pdev;
1760 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1761
1762 return dev->bus->number + ((dev->devfn + iov->offset +
1763 iov->stride * vfid) >> 8);
1764 }
1765
1766 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid)
1767 {
1768 struct pci_dev *dev = bp->pdev;
1769 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1770
1771 return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff;
1772 }
1773
1774 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf)
1775 {
1776 int i, n;
1777 struct pci_dev *dev = bp->pdev;
1778 struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1779
1780 for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) {
1781 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i);
1782 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i);
1783
1784 size /= iov->total;
1785 vf->bars[n].bar = start + size * vf->abs_vfid;
1786 vf->bars[n].size = size;
1787 }
1788 }
1789
1790 static int bnx2x_ari_enabled(struct pci_dev *dev)
1791 {
1792 return dev->bus->self && dev->bus->self->ari_enabled;
1793 }
1794
1795 static void
1796 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
1797 {
1798 int sb_id;
1799 u32 val;
1800 u8 fid;
1801
1802 /* IGU in normal mode - read CAM */
1803 for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) {
1804 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4);
1805 if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
1806 continue;
1807 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
1808 if (!(fid & IGU_FID_ENCODE_IS_PF))
1809 bnx2x_vf_set_igu_info(bp, sb_id,
1810 (fid & IGU_FID_VF_NUM_MASK));
1811
1812 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
1813 ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"),
1814 ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) :
1815 (fid & IGU_FID_VF_NUM_MASK)), sb_id,
1816 GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR));
1817 }
1818 }
1819
1820 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp)
1821 {
1822 if (bp->vfdb) {
1823 kfree(bp->vfdb->vfqs);
1824 kfree(bp->vfdb->vfs);
1825 kfree(bp->vfdb);
1826 }
1827 bp->vfdb = NULL;
1828 }
1829
1830 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1831 {
1832 int pos;
1833 struct pci_dev *dev = bp->pdev;
1834
1835 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
1836 if (!pos) {
1837 BNX2X_ERR("failed to find SRIOV capability in device\n");
1838 return -ENODEV;
1839 }
1840
1841 iov->pos = pos;
1842 DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos);
1843 pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
1844 pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total);
1845 pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial);
1846 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
1847 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
1848 pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
1849 pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
1850 pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
1851
1852 return 0;
1853 }
1854
1855 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1856 {
1857 u32 val;
1858
1859 /* read the SRIOV capability structure
1860 * The fields can be read via configuration read or
1861 * directly from the device (starting at offset PCICFG_OFFSET)
1862 */
1863 if (bnx2x_sriov_pci_cfg_info(bp, iov))
1864 return -ENODEV;
1865
1866 /* get the number of SRIOV bars */
1867 iov->nres = 0;
1868
1869 /* read the first_vfid */
1870 val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF);
1871 iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK)
1872 * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp));
1873
1874 DP(BNX2X_MSG_IOV,
1875 "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",
1876 BP_FUNC(bp),
1877 iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total,
1878 iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
1879
1880 return 0;
1881 }
1882
1883 static u8 bnx2x_iov_get_max_queue_count(struct bnx2x *bp)
1884 {
1885 int i;
1886 u8 queue_count = 0;
1887
1888 if (IS_SRIOV(bp))
1889 for_each_vf(bp, i)
1890 queue_count += bnx2x_vf(bp, i, alloc_resc.num_sbs);
1891
1892 return queue_count;
1893 }
1894
1895 /* must be called after PF bars are mapped */
1896 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
1897 int num_vfs_param)
1898 {
1899 int err, i, qcount;
1900 struct bnx2x_sriov *iov;
1901 struct pci_dev *dev = bp->pdev;
1902
1903 bp->vfdb = NULL;
1904
1905 /* verify is pf */
1906 if (IS_VF(bp))
1907 return 0;
1908
1909 /* verify sriov capability is present in configuration space */
1910 if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV))
1911 return 0;
1912
1913 /* verify chip revision */
1914 if (CHIP_IS_E1x(bp))
1915 return 0;
1916
1917 /* check if SRIOV support is turned off */
1918 if (!num_vfs_param)
1919 return 0;
1920
1921 /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */
1922 if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) {
1923 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n",
1924 BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID);
1925 return 0;
1926 }
1927
1928 /* SRIOV can be enabled only with MSIX */
1929 if (int_mode_param == BNX2X_INT_MODE_MSI ||
1930 int_mode_param == BNX2X_INT_MODE_INTX) {
1931 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n");
1932 return 0;
1933 }
1934
1935 err = -EIO;
1936 /* verify ari is enabled */
1937 if (!bnx2x_ari_enabled(bp->pdev)) {
1938 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n");
1939 return 0;
1940 }
1941
1942 /* verify igu is in normal mode */
1943 if (CHIP_INT_MODE_IS_BC(bp)) {
1944 BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n");
1945 return 0;
1946 }
1947
1948 /* allocate the vfs database */
1949 bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL);
1950 if (!bp->vfdb) {
1951 BNX2X_ERR("failed to allocate vf database\n");
1952 err = -ENOMEM;
1953 goto failed;
1954 }
1955
1956 /* get the sriov info - Linux already collected all the pertinent
1957 * information, however the sriov structure is for the private use
1958 * of the pci module. Also we want this information regardless
1959 * of the hyper-visor.
1960 */
1961 iov = &(bp->vfdb->sriov);
1962 err = bnx2x_sriov_info(bp, iov);
1963 if (err)
1964 goto failed;
1965
1966 /* SR-IOV capability was enabled but there are no VFs*/
1967 if (iov->total == 0)
1968 goto failed;
1969
1970 iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param);
1971
1972 DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n",
1973 num_vfs_param, iov->nr_virtfn);
1974
1975 /* allocate the vf array */
1976 bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) *
1977 BNX2X_NR_VIRTFN(bp), GFP_KERNEL);
1978 if (!bp->vfdb->vfs) {
1979 BNX2X_ERR("failed to allocate vf array\n");
1980 err = -ENOMEM;
1981 goto failed;
1982 }
1983
1984 /* Initial VF init - index and abs_vfid - nr_virtfn must be set */
1985 for_each_vf(bp, i) {
1986 bnx2x_vf(bp, i, index) = i;
1987 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i;
1988 bnx2x_vf(bp, i, state) = VF_FREE;
1989 INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head));
1990 mutex_init(&bnx2x_vf(bp, i, op_mutex));
1991 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE;
1992 }
1993
1994 /* re-read the IGU CAM for VFs - index and abs_vfid must be set */
1995 bnx2x_get_vf_igu_cam_info(bp);
1996
1997 /* get the total queue count and allocate the global queue arrays */
1998 qcount = bnx2x_iov_get_max_queue_count(bp);
1999
2000 /* allocate the queue arrays for all VFs */
2001 bp->vfdb->vfqs = kzalloc(qcount * sizeof(struct bnx2x_vf_queue),
2002 GFP_KERNEL);
2003 if (!bp->vfdb->vfqs) {
2004 BNX2X_ERR("failed to allocate vf queue array\n");
2005 err = -ENOMEM;
2006 goto failed;
2007 }
2008
2009 return 0;
2010 failed:
2011 DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
2012 __bnx2x_iov_free_vfdb(bp);
2013 return err;
2014 }
2015
2016 void bnx2x_iov_remove_one(struct bnx2x *bp)
2017 {
2018 /* if SRIOV is not enabled there's nothing to do */
2019 if (!IS_SRIOV(bp))
2020 return;
2021
2022 DP(BNX2X_MSG_IOV, "about to call disable sriov\n");
2023 pci_disable_sriov(bp->pdev);
2024 DP(BNX2X_MSG_IOV, "sriov disabled\n");
2025
2026 /* free vf database */
2027 __bnx2x_iov_free_vfdb(bp);
2028 }
2029
2030 void bnx2x_iov_free_mem(struct bnx2x *bp)
2031 {
2032 int i;
2033
2034 if (!IS_SRIOV(bp))
2035 return;
2036
2037 /* free vfs hw contexts */
2038 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2039 struct hw_dma *cxt = &bp->vfdb->context[i];
2040 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size);
2041 }
2042
2043 BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr,
2044 BP_VFDB(bp)->sp_dma.mapping,
2045 BP_VFDB(bp)->sp_dma.size);
2046
2047 BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr,
2048 BP_VF_MBX_DMA(bp)->mapping,
2049 BP_VF_MBX_DMA(bp)->size);
2050
2051 BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr,
2052 BP_VF_BULLETIN_DMA(bp)->mapping,
2053 BP_VF_BULLETIN_DMA(bp)->size);
2054 }
2055
2056 int bnx2x_iov_alloc_mem(struct bnx2x *bp)
2057 {
2058 size_t tot_size;
2059 int i, rc = 0;
2060
2061 if (!IS_SRIOV(bp))
2062 return rc;
2063
2064 /* allocate vfs hw contexts */
2065 tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) *
2066 BNX2X_CIDS_PER_VF * sizeof(union cdu_context);
2067
2068 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2069 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i);
2070 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ);
2071
2072 if (cxt->size) {
2073 BNX2X_PCI_ALLOC(cxt->addr, &cxt->mapping, cxt->size);
2074 } else {
2075 cxt->addr = NULL;
2076 cxt->mapping = 0;
2077 }
2078 tot_size -= cxt->size;
2079 }
2080
2081 /* allocate vfs ramrods dma memory - client_init and set_mac */
2082 tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp);
2083 BNX2X_PCI_ALLOC(BP_VFDB(bp)->sp_dma.addr, &BP_VFDB(bp)->sp_dma.mapping,
2084 tot_size);
2085 BP_VFDB(bp)->sp_dma.size = tot_size;
2086
2087 /* allocate mailboxes */
2088 tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE;
2089 BNX2X_PCI_ALLOC(BP_VF_MBX_DMA(bp)->addr, &BP_VF_MBX_DMA(bp)->mapping,
2090 tot_size);
2091 BP_VF_MBX_DMA(bp)->size = tot_size;
2092
2093 /* allocate local bulletin boards */
2094 tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE;
2095 BNX2X_PCI_ALLOC(BP_VF_BULLETIN_DMA(bp)->addr,
2096 &BP_VF_BULLETIN_DMA(bp)->mapping, tot_size);
2097 BP_VF_BULLETIN_DMA(bp)->size = tot_size;
2098
2099 return 0;
2100
2101 alloc_mem_err:
2102 return -ENOMEM;
2103 }
2104
2105 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
2106 struct bnx2x_vf_queue *q)
2107 {
2108 u8 cl_id = vfq_cl_id(vf, q);
2109 u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
2110 unsigned long q_type = 0;
2111
2112 set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
2113 set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
2114
2115 /* Queue State object */
2116 bnx2x_init_queue_obj(bp, &q->sp_obj,
2117 cl_id, &q->cid, 1, func_id,
2118 bnx2x_vf_sp(bp, vf, q_data),
2119 bnx2x_vf_sp_map(bp, vf, q_data),
2120 q_type);
2121
2122 DP(BNX2X_MSG_IOV,
2123 "initialized vf %d's queue object. func id set to %d\n",
2124 vf->abs_vfid, q->sp_obj.func_id);
2125
2126 /* mac/vlan objects are per queue, but only those
2127 * that belong to the leading queue are initialized
2128 */
2129 if (vfq_is_leading(q)) {
2130 /* mac */
2131 bnx2x_init_mac_obj(bp, &q->mac_obj,
2132 cl_id, q->cid, func_id,
2133 bnx2x_vf_sp(bp, vf, mac_rdata),
2134 bnx2x_vf_sp_map(bp, vf, mac_rdata),
2135 BNX2X_FILTER_MAC_PENDING,
2136 &vf->filter_state,
2137 BNX2X_OBJ_TYPE_RX_TX,
2138 &bp->macs_pool);
2139 /* vlan */
2140 bnx2x_init_vlan_obj(bp, &q->vlan_obj,
2141 cl_id, q->cid, func_id,
2142 bnx2x_vf_sp(bp, vf, vlan_rdata),
2143 bnx2x_vf_sp_map(bp, vf, vlan_rdata),
2144 BNX2X_FILTER_VLAN_PENDING,
2145 &vf->filter_state,
2146 BNX2X_OBJ_TYPE_RX_TX,
2147 &bp->vlans_pool);
2148
2149 /* mcast */
2150 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, cl_id,
2151 q->cid, func_id, func_id,
2152 bnx2x_vf_sp(bp, vf, mcast_rdata),
2153 bnx2x_vf_sp_map(bp, vf, mcast_rdata),
2154 BNX2X_FILTER_MCAST_PENDING,
2155 &vf->filter_state,
2156 BNX2X_OBJ_TYPE_RX_TX);
2157
2158 vf->leading_rss = cl_id;
2159 }
2160 }
2161
2162 /* called by bnx2x_nic_load */
2163 int bnx2x_iov_nic_init(struct bnx2x *bp)
2164 {
2165 int vfid, qcount, i;
2166
2167 if (!IS_SRIOV(bp)) {
2168 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n");
2169 return 0;
2170 }
2171
2172 DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn);
2173
2174 /* let FLR complete ... */
2175 msleep(100);
2176
2177 /* initialize vf database */
2178 for_each_vf(bp, vfid) {
2179 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2180
2181 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) *
2182 BNX2X_CIDS_PER_VF;
2183
2184 union cdu_context *base_cxt = (union cdu_context *)
2185 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2186 (base_vf_cid & (ILT_PAGE_CIDS-1));
2187
2188 DP(BNX2X_MSG_IOV,
2189 "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n",
2190 vf->abs_vfid, vf_sb_count(vf), base_vf_cid,
2191 BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt);
2192
2193 /* init statically provisioned resources */
2194 bnx2x_iov_static_resc(bp, &vf->alloc_resc);
2195
2196 /* queues are initialized during VF-ACQUIRE */
2197
2198 /* reserve the vf vlan credit */
2199 bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf));
2200
2201 vf->filter_state = 0;
2202 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id);
2203
2204 /* init mcast object - This object will be re-initialized
2205 * during VF-ACQUIRE with the proper cl_id and cid.
2206 * It needs to be initialized here so that it can be safely
2207 * handled by a subsequent FLR flow.
2208 */
2209 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF,
2210 0xFF, 0xFF, 0xFF,
2211 bnx2x_vf_sp(bp, vf, mcast_rdata),
2212 bnx2x_vf_sp_map(bp, vf, mcast_rdata),
2213 BNX2X_FILTER_MCAST_PENDING,
2214 &vf->filter_state,
2215 BNX2X_OBJ_TYPE_RX_TX);
2216
2217 /* set the mailbox message addresses */
2218 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *)
2219 (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid *
2220 MBX_MSG_ALIGNED_SIZE);
2221
2222 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping +
2223 vfid * MBX_MSG_ALIGNED_SIZE;
2224
2225 /* Enable vf mailbox */
2226 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
2227 }
2228
2229 /* Final VF init */
2230 qcount = 0;
2231 for_each_vf(bp, i) {
2232 struct bnx2x_virtf *vf = BP_VF(bp, i);
2233
2234 /* fill in the BDF and bars */
2235 vf->bus = bnx2x_vf_bus(bp, i);
2236 vf->devfn = bnx2x_vf_devfn(bp, i);
2237 bnx2x_vf_set_bars(bp, vf);
2238
2239 DP(BNX2X_MSG_IOV,
2240 "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n",
2241 vf->abs_vfid, vf->bus, vf->devfn,
2242 (unsigned)vf->bars[0].bar, vf->bars[0].size,
2243 (unsigned)vf->bars[1].bar, vf->bars[1].size,
2244 (unsigned)vf->bars[2].bar, vf->bars[2].size);
2245
2246 /* set local queue arrays */
2247 vf->vfqs = &bp->vfdb->vfqs[qcount];
2248 qcount += bnx2x_vf(bp, i, alloc_resc.num_sbs);
2249 }
2250
2251 return 0;
2252 }
2253
2254 /* called by bnx2x_chip_cleanup */
2255 int bnx2x_iov_chip_cleanup(struct bnx2x *bp)
2256 {
2257 int i;
2258
2259 if (!IS_SRIOV(bp))
2260 return 0;
2261
2262 /* release all the VFs */
2263 for_each_vf(bp, i)
2264 bnx2x_vf_release(bp, BP_VF(bp, i), true); /* blocking */
2265
2266 return 0;
2267 }
2268
2269 /* called by bnx2x_init_hw_func, returns the next ilt line */
2270 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line)
2271 {
2272 int i;
2273 struct bnx2x_ilt *ilt = BP_ILT(bp);
2274
2275 if (!IS_SRIOV(bp))
2276 return line;
2277
2278 /* set vfs ilt lines */
2279 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2280 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i);
2281
2282 ilt->lines[line+i].page = hw_cxt->addr;
2283 ilt->lines[line+i].page_mapping = hw_cxt->mapping;
2284 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */
2285 }
2286 return line + i;
2287 }
2288
2289 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid)
2290 {
2291 return ((cid >= BNX2X_FIRST_VF_CID) &&
2292 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS));
2293 }
2294
2295 static
2296 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp,
2297 struct bnx2x_vf_queue *vfq,
2298 union event_ring_elem *elem)
2299 {
2300 unsigned long ramrod_flags = 0;
2301 int rc = 0;
2302
2303 /* Always push next commands out, don't wait here */
2304 set_bit(RAMROD_CONT, &ramrod_flags);
2305
2306 switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) {
2307 case BNX2X_FILTER_MAC_PENDING:
2308 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem,
2309 &ramrod_flags);
2310 break;
2311 case BNX2X_FILTER_VLAN_PENDING:
2312 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem,
2313 &ramrod_flags);
2314 break;
2315 default:
2316 BNX2X_ERR("Unsupported classification command: %d\n",
2317 elem->message.data.eth_event.echo);
2318 return;
2319 }
2320 if (rc < 0)
2321 BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
2322 else if (rc > 0)
2323 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n");
2324 }
2325
2326 static
2327 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp,
2328 struct bnx2x_virtf *vf)
2329 {
2330 struct bnx2x_mcast_ramrod_params rparam = {NULL};
2331 int rc;
2332
2333 rparam.mcast_obj = &vf->mcast_obj;
2334 vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw);
2335
2336 /* If there are pending mcast commands - send them */
2337 if (vf->mcast_obj.check_pending(&vf->mcast_obj)) {
2338 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
2339 if (rc < 0)
2340 BNX2X_ERR("Failed to send pending mcast commands: %d\n",
2341 rc);
2342 }
2343 }
2344
2345 static
2346 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp,
2347 struct bnx2x_virtf *vf)
2348 {
2349 smp_mb__before_clear_bit();
2350 clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
2351 smp_mb__after_clear_bit();
2352 }
2353
2354 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
2355 {
2356 struct bnx2x_virtf *vf;
2357 int qidx = 0, abs_vfid;
2358 u8 opcode;
2359 u16 cid = 0xffff;
2360
2361 if (!IS_SRIOV(bp))
2362 return 1;
2363
2364 /* first get the cid - the only events we handle here are cfc-delete
2365 * and set-mac completion
2366 */
2367 opcode = elem->message.opcode;
2368
2369 switch (opcode) {
2370 case EVENT_RING_OPCODE_CFC_DEL:
2371 cid = SW_CID((__force __le32)
2372 elem->message.data.cfc_del_event.cid);
2373 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid);
2374 break;
2375 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2376 case EVENT_RING_OPCODE_MULTICAST_RULES:
2377 case EVENT_RING_OPCODE_FILTERS_RULES:
2378 cid = (elem->message.data.eth_event.echo &
2379 BNX2X_SWCID_MASK);
2380 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid);
2381 break;
2382 case EVENT_RING_OPCODE_VF_FLR:
2383 abs_vfid = elem->message.data.vf_flr_event.vf_id;
2384 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n",
2385 abs_vfid);
2386 goto get_vf;
2387 case EVENT_RING_OPCODE_MALICIOUS_VF:
2388 abs_vfid = elem->message.data.malicious_vf_event.vf_id;
2389 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
2390 abs_vfid, elem->message.data.malicious_vf_event.err_id);
2391 goto get_vf;
2392 default:
2393 return 1;
2394 }
2395
2396 /* check if the cid is the VF range */
2397 if (!bnx2x_iov_is_vf_cid(bp, cid)) {
2398 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid);
2399 return 1;
2400 }
2401
2402 /* extract vf and rxq index from vf_cid - relies on the following:
2403 * 1. vfid on cid reflects the true abs_vfid
2404 * 2. The max number of VFs (per path) is 64
2405 */
2406 qidx = cid & ((1 << BNX2X_VF_CID_WND)-1);
2407 abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2408 get_vf:
2409 vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
2410
2411 if (!vf) {
2412 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n",
2413 cid, abs_vfid);
2414 return 0;
2415 }
2416
2417 switch (opcode) {
2418 case EVENT_RING_OPCODE_CFC_DEL:
2419 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n",
2420 vf->abs_vfid, qidx);
2421 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp,
2422 &vfq_get(vf,
2423 qidx)->sp_obj,
2424 BNX2X_Q_CMD_CFC_DEL);
2425 break;
2426 case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2427 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n",
2428 vf->abs_vfid, qidx);
2429 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem);
2430 break;
2431 case EVENT_RING_OPCODE_MULTICAST_RULES:
2432 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n",
2433 vf->abs_vfid, qidx);
2434 bnx2x_vf_handle_mcast_eqe(bp, vf);
2435 break;
2436 case EVENT_RING_OPCODE_FILTERS_RULES:
2437 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n",
2438 vf->abs_vfid, qidx);
2439 bnx2x_vf_handle_filters_eqe(bp, vf);
2440 break;
2441 case EVENT_RING_OPCODE_VF_FLR:
2442 DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n",
2443 vf->abs_vfid);
2444 /* Do nothing for now */
2445 break;
2446 case EVENT_RING_OPCODE_MALICIOUS_VF:
2447 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d error id %x\n",
2448 abs_vfid, elem->message.data.malicious_vf_event.err_id);
2449 /* Do nothing for now */
2450 break;
2451 }
2452 /* SRIOV: reschedule any 'in_progress' operations */
2453 bnx2x_iov_sp_event(bp, cid, false);
2454
2455 return 0;
2456 }
2457
2458 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid)
2459 {
2460 /* extract the vf from vf_cid - relies on the following:
2461 * 1. vfid on cid reflects the true abs_vfid
2462 * 2. The max number of VFs (per path) is 64
2463 */
2464 int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2465 return bnx2x_vf_by_abs_fid(bp, abs_vfid);
2466 }
2467
2468 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
2469 struct bnx2x_queue_sp_obj **q_obj)
2470 {
2471 struct bnx2x_virtf *vf;
2472
2473 if (!IS_SRIOV(bp))
2474 return;
2475
2476 vf = bnx2x_vf_by_cid(bp, vf_cid);
2477
2478 if (vf) {
2479 /* extract queue index from vf_cid - relies on the following:
2480 * 1. vfid on cid reflects the true abs_vfid
2481 * 2. The max number of VFs (per path) is 64
2482 */
2483 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1);
2484 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj);
2485 } else {
2486 BNX2X_ERR("No vf matching cid %d\n", vf_cid);
2487 }
2488 }
2489
2490 void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work)
2491 {
2492 struct bnx2x_virtf *vf;
2493
2494 /* check if the cid is the VF range */
2495 if (!IS_SRIOV(bp) || !bnx2x_iov_is_vf_cid(bp, vf_cid))
2496 return;
2497
2498 vf = bnx2x_vf_by_cid(bp, vf_cid);
2499 if (vf) {
2500 /* set in_progress flag */
2501 atomic_set(&vf->op_in_progress, 1);
2502 if (queue_work)
2503 queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
2504 }
2505 }
2506
2507 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp)
2508 {
2509 int i;
2510 int first_queue_query_index, num_queues_req;
2511 dma_addr_t cur_data_offset;
2512 struct stats_query_entry *cur_query_entry;
2513 u8 stats_count = 0;
2514 bool is_fcoe = false;
2515
2516 if (!IS_SRIOV(bp))
2517 return;
2518
2519 if (!NO_FCOE(bp))
2520 is_fcoe = true;
2521
2522 /* fcoe adds one global request and one queue request */
2523 num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe;
2524 first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX -
2525 (is_fcoe ? 0 : 1);
2526
2527 DP(BNX2X_MSG_IOV,
2528 "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",
2529 BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index,
2530 first_queue_query_index + num_queues_req);
2531
2532 cur_data_offset = bp->fw_stats_data_mapping +
2533 offsetof(struct bnx2x_fw_stats_data, queue_stats) +
2534 num_queues_req * sizeof(struct per_queue_stats);
2535
2536 cur_query_entry = &bp->fw_stats_req->
2537 query[first_queue_query_index + num_queues_req];
2538
2539 for_each_vf(bp, i) {
2540 int j;
2541 struct bnx2x_virtf *vf = BP_VF(bp, i);
2542
2543 if (vf->state != VF_ENABLED) {
2544 DP(BNX2X_MSG_IOV,
2545 "vf %d not enabled so no stats for it\n",
2546 vf->abs_vfid);
2547 continue;
2548 }
2549
2550 DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid);
2551 for_each_vfq(vf, j) {
2552 struct bnx2x_vf_queue *rxq = vfq_get(vf, j);
2553
2554 /* collect stats fro active queues only */
2555 if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) ==
2556 BNX2X_Q_LOGICAL_STATE_STOPPED)
2557 continue;
2558
2559 /* create stats query entry for this queue */
2560 cur_query_entry->kind = STATS_TYPE_QUEUE;
2561 cur_query_entry->index = vfq_cl_id(vf, rxq);
2562 cur_query_entry->funcID =
2563 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid));
2564 cur_query_entry->address.hi =
2565 cpu_to_le32(U64_HI(vf->fw_stat_map));
2566 cur_query_entry->address.lo =
2567 cpu_to_le32(U64_LO(vf->fw_stat_map));
2568 DP(BNX2X_MSG_IOV,
2569 "added address %x %x for vf %d queue %d client %d\n",
2570 cur_query_entry->address.hi,
2571 cur_query_entry->address.lo, cur_query_entry->funcID,
2572 j, cur_query_entry->index);
2573 cur_query_entry++;
2574 cur_data_offset += sizeof(struct per_queue_stats);
2575 stats_count++;
2576 }
2577 }
2578 bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count;
2579 }
2580
2581 void bnx2x_iov_sp_task(struct bnx2x *bp)
2582 {
2583 int i;
2584
2585 if (!IS_SRIOV(bp))
2586 return;
2587 /* Iterate over all VFs and invoke state transition for VFs with
2588 * 'in-progress' slow-path operations
2589 */
2590 DP(BNX2X_MSG_IOV, "searching for pending vf operations\n");
2591 for_each_vf(bp, i) {
2592 struct bnx2x_virtf *vf = BP_VF(bp, i);
2593
2594 if (!list_empty(&vf->op_list_head) &&
2595 atomic_read(&vf->op_in_progress)) {
2596 DP(BNX2X_MSG_IOV, "running pending op for vf %d\n", i);
2597 bnx2x_vfop_cur(bp, vf)->transition(bp, vf);
2598 }
2599 }
2600 }
2601
2602 static inline
2603 struct bnx2x_virtf *__vf_from_stat_id(struct bnx2x *bp, u8 stat_id)
2604 {
2605 int i;
2606 struct bnx2x_virtf *vf = NULL;
2607
2608 for_each_vf(bp, i) {
2609 vf = BP_VF(bp, i);
2610 if (stat_id >= vf->igu_base_id &&
2611 stat_id < vf->igu_base_id + vf_sb_count(vf))
2612 break;
2613 }
2614 return vf;
2615 }
2616
2617 /* VF API helpers */
2618 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid,
2619 u8 enable)
2620 {
2621 u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4;
2622 u32 val = enable ? (abs_vfid | (1 << 6)) : 0;
2623
2624 REG_WR(bp, reg, val);
2625 }
2626
2627 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf)
2628 {
2629 int i;
2630
2631 for_each_vfq(vf, i)
2632 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2633 vfq_qzone_id(vf, vfq_get(vf, i)), false);
2634 }
2635
2636 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf)
2637 {
2638 u32 val;
2639
2640 /* clear the VF configuration - pretend */
2641 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
2642 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
2643 val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN |
2644 IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK);
2645 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
2646 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
2647 }
2648
2649 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf)
2650 {
2651 return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF),
2652 BNX2X_VF_MAX_QUEUES);
2653 }
2654
2655 static
2656 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf,
2657 struct vf_pf_resc_request *req_resc)
2658 {
2659 u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2660 u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2661
2662 return ((req_resc->num_rxqs <= rxq_cnt) &&
2663 (req_resc->num_txqs <= txq_cnt) &&
2664 (req_resc->num_sbs <= vf_sb_count(vf)) &&
2665 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) &&
2666 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf)));
2667 }
2668
2669 /* CORE VF API */
2670 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
2671 struct vf_pf_resc_request *resc)
2672 {
2673 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) *
2674 BNX2X_CIDS_PER_VF;
2675
2676 union cdu_context *base_cxt = (union cdu_context *)
2677 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2678 (base_vf_cid & (ILT_PAGE_CIDS-1));
2679 int i;
2680
2681 /* if state is 'acquired' the VF was not released or FLR'd, in
2682 * this case the returned resources match the acquired already
2683 * acquired resources. Verify that the requested numbers do
2684 * not exceed the already acquired numbers.
2685 */
2686 if (vf->state == VF_ACQUIRED) {
2687 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n",
2688 vf->abs_vfid);
2689
2690 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2691 BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n",
2692 vf->abs_vfid);
2693 return -EINVAL;
2694 }
2695 return 0;
2696 }
2697
2698 /* Otherwise vf state must be 'free' or 'reset' */
2699 if (vf->state != VF_FREE && vf->state != VF_RESET) {
2700 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n",
2701 vf->abs_vfid, vf->state);
2702 return -EINVAL;
2703 }
2704
2705 /* static allocation:
2706 * the global maximum number are fixed per VF. Fail the request if
2707 * requested number exceed these globals
2708 */
2709 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2710 DP(BNX2X_MSG_IOV,
2711 "cannot fulfill vf resource request. Placing maximal available values in response\n");
2712 /* set the max resource in the vf */
2713 return -ENOMEM;
2714 }
2715
2716 /* Set resources counters - 0 request means max available */
2717 vf_sb_count(vf) = resc->num_sbs;
2718 vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2719 vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2720 if (resc->num_mac_filters)
2721 vf_mac_rules_cnt(vf) = resc->num_mac_filters;
2722 if (resc->num_vlan_filters)
2723 vf_vlan_rules_cnt(vf) = resc->num_vlan_filters;
2724
2725 DP(BNX2X_MSG_IOV,
2726 "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n",
2727 vf_sb_count(vf), vf_rxq_count(vf),
2728 vf_txq_count(vf), vf_mac_rules_cnt(vf),
2729 vf_vlan_rules_cnt(vf));
2730
2731 /* Initialize the queues */
2732 if (!vf->vfqs) {
2733 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n");
2734 return -EINVAL;
2735 }
2736
2737 for_each_vfq(vf, i) {
2738 struct bnx2x_vf_queue *q = vfq_get(vf, i);
2739
2740 if (!q) {
2741 DP(BNX2X_MSG_IOV, "q number %d was not allocated\n", i);
2742 return -EINVAL;
2743 }
2744
2745 q->index = i;
2746 q->cxt = &((base_cxt + i)->eth);
2747 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i;
2748
2749 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n",
2750 vf->abs_vfid, i, q->index, q->cid, q->cxt);
2751
2752 /* init SP objects */
2753 bnx2x_vfq_init(bp, vf, q);
2754 }
2755 vf->state = VF_ACQUIRED;
2756 return 0;
2757 }
2758
2759 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map)
2760 {
2761 struct bnx2x_func_init_params func_init = {0};
2762 u16 flags = 0;
2763 int i;
2764
2765 /* the sb resources are initialized at this point, do the
2766 * FW/HW initializations
2767 */
2768 for_each_vf_sb(vf, i)
2769 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true,
2770 vf_igu_sb(vf, i), vf_igu_sb(vf, i));
2771
2772 /* Sanity checks */
2773 if (vf->state != VF_ACQUIRED) {
2774 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n",
2775 vf->abs_vfid, vf->state);
2776 return -EINVAL;
2777 }
2778
2779 /* let FLR complete ... */
2780 msleep(100);
2781
2782 /* FLR cleanup epilogue */
2783 if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid))
2784 return -EBUSY;
2785
2786 /* reset IGU VF statistics: MSIX */
2787 REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0);
2788
2789 /* vf init */
2790 if (vf->cfg_flags & VF_CFG_STATS)
2791 flags |= (FUNC_FLG_STATS | FUNC_FLG_SPQ);
2792
2793 if (vf->cfg_flags & VF_CFG_TPA)
2794 flags |= FUNC_FLG_TPA;
2795
2796 if (is_vf_multi(vf))
2797 flags |= FUNC_FLG_RSS;
2798
2799 /* function setup */
2800 func_init.func_flgs = flags;
2801 func_init.pf_id = BP_FUNC(bp);
2802 func_init.func_id = FW_VF_HANDLE(vf->abs_vfid);
2803 func_init.fw_stat_map = vf->fw_stat_map;
2804 func_init.spq_map = vf->spq_map;
2805 func_init.spq_prod = 0;
2806 bnx2x_func_init(bp, &func_init);
2807
2808 /* Enable the vf */
2809 bnx2x_vf_enable_access(bp, vf->abs_vfid);
2810 bnx2x_vf_enable_traffic(bp, vf);
2811
2812 /* queue protection table */
2813 for_each_vfq(vf, i)
2814 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2815 vfq_qzone_id(vf, vfq_get(vf, i)), true);
2816
2817 vf->state = VF_ENABLED;
2818
2819 /* update vf bulletin board */
2820 bnx2x_post_vf_bulletin(bp, vf->index);
2821
2822 return 0;
2823 }
2824
2825 /* VFOP close (teardown the queues, delete mcasts and close HW) */
2826 static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
2827 {
2828 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2829 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
2830 enum bnx2x_vfop_close_state state = vfop->state;
2831 struct bnx2x_vfop_cmd cmd = {
2832 .done = bnx2x_vfop_close,
2833 .block = false,
2834 };
2835
2836 if (vfop->rc < 0)
2837 goto op_err;
2838
2839 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2840
2841 switch (state) {
2842 case BNX2X_VFOP_CLOSE_QUEUES:
2843
2844 if (++(qx->qid) < vf_rxq_count(vf)) {
2845 vfop->rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qx->qid);
2846 if (vfop->rc)
2847 goto op_err;
2848 return;
2849 }
2850
2851 /* remove multicasts */
2852 vfop->state = BNX2X_VFOP_CLOSE_HW;
2853 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false);
2854 if (vfop->rc)
2855 goto op_err;
2856 return;
2857
2858 case BNX2X_VFOP_CLOSE_HW:
2859
2860 /* disable the interrupts */
2861 DP(BNX2X_MSG_IOV, "disabling igu\n");
2862 bnx2x_vf_igu_disable(bp, vf);
2863
2864 /* disable the VF */
2865 DP(BNX2X_MSG_IOV, "clearing qtbl\n");
2866 bnx2x_vf_clr_qtbl(bp, vf);
2867
2868 goto op_done;
2869 default:
2870 bnx2x_vfop_default(state);
2871 }
2872 op_err:
2873 BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc);
2874 op_done:
2875 vf->state = VF_ACQUIRED;
2876 DP(BNX2X_MSG_IOV, "set state to acquired\n");
2877 bnx2x_vfop_end(bp, vf, vfop);
2878 }
2879
2880 int bnx2x_vfop_close_cmd(struct bnx2x *bp,
2881 struct bnx2x_virtf *vf,
2882 struct bnx2x_vfop_cmd *cmd)
2883 {
2884 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2885 if (vfop) {
2886 vfop->args.qx.qid = -1; /* loop */
2887 bnx2x_vfop_opset(BNX2X_VFOP_CLOSE_QUEUES,
2888 bnx2x_vfop_close, cmd->done);
2889 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_close,
2890 cmd->block);
2891 }
2892 return -ENOMEM;
2893 }
2894
2895 /* VF release can be called either: 1. The VF was acquired but
2896 * not enabled 2. the vf was enabled or in the process of being
2897 * enabled
2898 */
2899 static void bnx2x_vfop_release(struct bnx2x *bp, struct bnx2x_virtf *vf)
2900 {
2901 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2902 struct bnx2x_vfop_cmd cmd = {
2903 .done = bnx2x_vfop_release,
2904 .block = false,
2905 };
2906
2907 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2908
2909 if (vfop->rc < 0)
2910 goto op_err;
2911
2912 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid,
2913 vf->state == VF_FREE ? "Free" :
2914 vf->state == VF_ACQUIRED ? "Acquired" :
2915 vf->state == VF_ENABLED ? "Enabled" :
2916 vf->state == VF_RESET ? "Reset" :
2917 "Unknown");
2918
2919 switch (vf->state) {
2920 case VF_ENABLED:
2921 vfop->rc = bnx2x_vfop_close_cmd(bp, vf, &cmd);
2922 if (vfop->rc)
2923 goto op_err;
2924 return;
2925
2926 case VF_ACQUIRED:
2927 DP(BNX2X_MSG_IOV, "about to free resources\n");
2928 bnx2x_vf_free_resc(bp, vf);
2929 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2930 goto op_done;
2931
2932 case VF_FREE:
2933 case VF_RESET:
2934 /* do nothing */
2935 goto op_done;
2936 default:
2937 bnx2x_vfop_default(vf->state);
2938 }
2939 op_err:
2940 BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, vfop->rc);
2941 op_done:
2942 bnx2x_vfop_end(bp, vf, vfop);
2943 }
2944
2945 int bnx2x_vfop_release_cmd(struct bnx2x *bp,
2946 struct bnx2x_virtf *vf,
2947 struct bnx2x_vfop_cmd *cmd)
2948 {
2949 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2950 if (vfop) {
2951 bnx2x_vfop_opset(-1, /* use vf->state */
2952 bnx2x_vfop_release, cmd->done);
2953 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_release,
2954 cmd->block);
2955 }
2956 return -ENOMEM;
2957 }
2958
2959 /* VF release ~ VF close + VF release-resources
2960 * Release is the ultimate SW shutdown and is called whenever an
2961 * irrecoverable error is encountered.
2962 */
2963 void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block)
2964 {
2965 struct bnx2x_vfop_cmd cmd = {
2966 .done = NULL,
2967 .block = block,
2968 };
2969 int rc;
2970 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
2971
2972 rc = bnx2x_vfop_release_cmd(bp, vf, &cmd);
2973 if (rc)
2974 WARN(rc,
2975 "VF[%d] Failed to allocate resources for release op- rc=%d\n",
2976 vf->abs_vfid, rc);
2977 }
2978
2979 static inline void bnx2x_vf_get_sbdf(struct bnx2x *bp,
2980 struct bnx2x_virtf *vf, u32 *sbdf)
2981 {
2982 *sbdf = vf->devfn | (vf->bus << 8);
2983 }
2984
2985 static inline void bnx2x_vf_get_bars(struct bnx2x *bp, struct bnx2x_virtf *vf,
2986 struct bnx2x_vf_bar_info *bar_info)
2987 {
2988 int n;
2989
2990 bar_info->nr_bars = bp->vfdb->sriov.nres;
2991 for (n = 0; n < bar_info->nr_bars; n++)
2992 bar_info->bars[n] = vf->bars[n];
2993 }
2994
2995 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
2996 enum channel_tlvs tlv)
2997 {
2998 /* lock the channel */
2999 mutex_lock(&vf->op_mutex);
3000
3001 /* record the locking op */
3002 vf->op_current = tlv;
3003
3004 /* log the lock */
3005 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n",
3006 vf->abs_vfid, tlv);
3007 }
3008
3009 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3010 enum channel_tlvs expected_tlv)
3011 {
3012 WARN(expected_tlv != vf->op_current,
3013 "lock mismatch: expected %d found %d", expected_tlv,
3014 vf->op_current);
3015
3016 /* lock the channel */
3017 mutex_unlock(&vf->op_mutex);
3018
3019 /* log the unlock */
3020 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n",
3021 vf->abs_vfid, vf->op_current);
3022
3023 /* record the locking op */
3024 vf->op_current = CHANNEL_TLV_NONE;
3025 }
3026
3027 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
3028 {
3029 struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
3030
3031 DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
3032 num_vfs_param, BNX2X_NR_VIRTFN(bp));
3033
3034 /* HW channel is only operational when PF is up */
3035 if (bp->state != BNX2X_STATE_OPEN) {
3036 BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n");
3037 return -EINVAL;
3038 }
3039
3040 /* we are always bound by the total_vfs in the configuration space */
3041 if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) {
3042 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n",
3043 num_vfs_param, BNX2X_NR_VIRTFN(bp));
3044 num_vfs_param = BNX2X_NR_VIRTFN(bp);
3045 }
3046
3047 bp->requested_nr_virtfn = num_vfs_param;
3048 if (num_vfs_param == 0) {
3049 pci_disable_sriov(dev);
3050 return 0;
3051 } else {
3052 return bnx2x_enable_sriov(bp);
3053 }
3054 }
3055
3056 int bnx2x_enable_sriov(struct bnx2x *bp)
3057 {
3058 int rc = 0, req_vfs = bp->requested_nr_virtfn;
3059
3060 rc = pci_enable_sriov(bp->pdev, req_vfs);
3061 if (rc) {
3062 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
3063 return rc;
3064 }
3065 DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs);
3066 return req_vfs;
3067 }
3068
3069 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp)
3070 {
3071 int vfidx;
3072 struct pf_vf_bulletin_content *bulletin;
3073
3074 DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n");
3075 for_each_vf(bp, vfidx) {
3076 bulletin = BP_VF_BULLETIN(bp, vfidx);
3077 if (BP_VF(bp, vfidx)->cfg_flags & VF_CFG_VLAN)
3078 bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0);
3079 }
3080 }
3081
3082 void bnx2x_disable_sriov(struct bnx2x *bp)
3083 {
3084 pci_disable_sriov(bp->pdev);
3085 }
3086
3087 static int bnx2x_vf_ndo_sanity(struct bnx2x *bp, int vfidx,
3088 struct bnx2x_virtf *vf)
3089 {
3090 if (bp->state != BNX2X_STATE_OPEN) {
3091 BNX2X_ERR("vf ndo called though PF is down\n");
3092 return -EINVAL;
3093 }
3094
3095 if (!IS_SRIOV(bp)) {
3096 BNX2X_ERR("vf ndo called though sriov is disabled\n");
3097 return -EINVAL;
3098 }
3099
3100 if (vfidx >= BNX2X_NR_VIRTFN(bp)) {
3101 BNX2X_ERR("vf ndo called for uninitialized VF. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
3102 vfidx, BNX2X_NR_VIRTFN(bp));
3103 return -EINVAL;
3104 }
3105
3106 if (!vf) {
3107 BNX2X_ERR("vf ndo called but vf was null. vfidx was %d\n",
3108 vfidx);
3109 return -EINVAL;
3110 }
3111
3112 return 0;
3113 }
3114
3115 int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
3116 struct ifla_vf_info *ivi)
3117 {
3118 struct bnx2x *bp = netdev_priv(dev);
3119 struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
3120 struct bnx2x_vlan_mac_obj *mac_obj = &bnx2x_vfq(vf, 0, mac_obj);
3121 struct bnx2x_vlan_mac_obj *vlan_obj = &bnx2x_vfq(vf, 0, vlan_obj);
3122 struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
3123 int rc;
3124
3125 /* sanity */
3126 rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
3127 if (rc)
3128 return rc;
3129 if (!mac_obj || !vlan_obj || !bulletin) {
3130 BNX2X_ERR("VF partially initialized\n");
3131 return -EINVAL;
3132 }
3133
3134 ivi->vf = vfidx;
3135 ivi->qos = 0;
3136 ivi->tx_rate = 10000; /* always 10G. TBA take from link struct */
3137 ivi->spoofchk = 1; /*always enabled */
3138 if (vf->state == VF_ENABLED) {
3139 /* mac and vlan are in vlan_mac objects */
3140 mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac,
3141 0, ETH_ALEN);
3142 vlan_obj->get_n_elements(bp, vlan_obj, 1, (u8 *)&ivi->vlan,
3143 0, VLAN_HLEN);
3144 } else {
3145 /* mac */
3146 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
3147 /* mac configured by ndo so its in bulletin board */
3148 memcpy(&ivi->mac, bulletin->mac, ETH_ALEN);
3149 else
3150 /* function has not been loaded yet. Show mac as 0s */
3151 memset(&ivi->mac, 0, ETH_ALEN);
3152
3153 /* vlan */
3154 if (bulletin->valid_bitmap & (1 << VLAN_VALID))
3155 /* vlan configured by ndo so its in bulletin board */
3156 memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN);
3157 else
3158 /* function has not been loaded yet. Show vlans as 0s */
3159 memset(&ivi->vlan, 0, VLAN_HLEN);
3160 }
3161
3162 return 0;
3163 }
3164
3165 /* New mac for VF. Consider these cases:
3166 * 1. VF hasn't been acquired yet - save the mac in local bulletin board and
3167 * supply at acquire.
3168 * 2. VF has already been acquired but has not yet initialized - store in local
3169 * bulletin board. mac will be posted on VF bulletin board after VF init. VF
3170 * will configure this mac when it is ready.
3171 * 3. VF has already initialized but has not yet setup a queue - post the new
3172 * mac on VF's bulletin board right now. VF will configure this mac when it
3173 * is ready.
3174 * 4. VF has already set a queue - delete any macs already configured for this
3175 * queue and manually config the new mac.
3176 * In any event, once this function has been called refuse any attempts by the
3177 * VF to configure any mac for itself except for this mac. In case of a race
3178 * where the VF fails to see the new post on its bulletin board before sending a
3179 * mac configuration request, the PF will simply fail the request and VF can try
3180 * again after consulting its bulletin board.
3181 */
3182 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
3183 {
3184 struct bnx2x *bp = netdev_priv(dev);
3185 int rc, q_logical_state;
3186 struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
3187 struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
3188
3189 /* sanity */
3190 rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
3191 if (rc)
3192 return rc;
3193 if (!is_valid_ether_addr(mac)) {
3194 BNX2X_ERR("mac address invalid\n");
3195 return -EINVAL;
3196 }
3197
3198 /* update PF's copy of the VF's bulletin. Will no longer accept mac
3199 * configuration requests from vf unless match this mac
3200 */
3201 bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID;
3202 memcpy(bulletin->mac, mac, ETH_ALEN);
3203
3204 /* Post update on VF's bulletin board */
3205 rc = bnx2x_post_vf_bulletin(bp, vfidx);
3206 if (rc) {
3207 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
3208 return rc;
3209 }
3210
3211 /* is vf initialized and queue set up? */
3212 q_logical_state =
3213 bnx2x_get_q_logical_state(bp, &bnx2x_vfq(vf, 0, sp_obj));
3214 if (vf->state == VF_ENABLED &&
3215 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3216 /* configure the mac in device on this vf's queue */
3217 unsigned long ramrod_flags = 0;
3218 struct bnx2x_vlan_mac_obj *mac_obj = &bnx2x_vfq(vf, 0, mac_obj);
3219
3220 /* must lock vfpf channel to protect against vf flows */
3221 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3222
3223 /* remove existing eth macs */
3224 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
3225 if (rc) {
3226 BNX2X_ERR("failed to delete eth macs\n");
3227 return -EINVAL;
3228 }
3229
3230 /* remove existing uc list macs */
3231 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true);
3232 if (rc) {
3233 BNX2X_ERR("failed to delete uc_list macs\n");
3234 return -EINVAL;
3235 }
3236
3237 /* configure the new mac to device */
3238 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3239 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true,
3240 BNX2X_ETH_MAC, &ramrod_flags);
3241
3242 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3243 }
3244
3245 return 0;
3246 }
3247
3248 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
3249 {
3250 struct bnx2x *bp = netdev_priv(dev);
3251 int rc, q_logical_state;
3252 struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
3253 struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
3254
3255 /* sanity */
3256 rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
3257 if (rc)
3258 return rc;
3259
3260 if (vlan > 4095) {
3261 BNX2X_ERR("illegal vlan value %d\n", vlan);
3262 return -EINVAL;
3263 }
3264
3265 DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n",
3266 vfidx, vlan, 0);
3267
3268 /* update PF's copy of the VF's bulletin. No point in posting the vlan
3269 * to the VF since it doesn't have anything to do with it. But it useful
3270 * to store it here in case the VF is not up yet and we can only
3271 * configure the vlan later when it does.
3272 */
3273 bulletin->valid_bitmap |= 1 << VLAN_VALID;
3274 bulletin->vlan = vlan;
3275
3276 /* is vf initialized and queue set up? */
3277 q_logical_state =
3278 bnx2x_get_q_logical_state(bp, &bnx2x_vfq(vf, 0, sp_obj));
3279 if (vf->state == VF_ENABLED &&
3280 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3281 /* configure the vlan in device on this vf's queue */
3282 unsigned long ramrod_flags = 0;
3283 unsigned long vlan_mac_flags = 0;
3284 struct bnx2x_vlan_mac_obj *vlan_obj =
3285 &bnx2x_vfq(vf, 0, vlan_obj);
3286 struct bnx2x_vlan_mac_ramrod_params ramrod_param;
3287 struct bnx2x_queue_state_params q_params = {NULL};
3288 struct bnx2x_queue_update_params *update_params;
3289
3290 memset(&ramrod_param, 0, sizeof(ramrod_param));
3291
3292 /* must lock vfpf channel to protect against vf flows */
3293 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3294
3295 /* remove existing vlans */
3296 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3297 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags,
3298 &ramrod_flags);
3299 if (rc) {
3300 BNX2X_ERR("failed to delete vlans\n");
3301 return -EINVAL;
3302 }
3303
3304 /* send queue update ramrod to configure default vlan and silent
3305 * vlan removal
3306 */
3307 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
3308 q_params.cmd = BNX2X_Q_CMD_UPDATE;
3309 q_params.q_obj = &bnx2x_vfq(vf, 0, sp_obj);
3310 update_params = &q_params.params.update;
3311 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
3312 &update_params->update_flags);
3313 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
3314 &update_params->update_flags);
3315
3316 if (vlan == 0) {
3317 /* if vlan is 0 then we want to leave the VF traffic
3318 * untagged, and leave the incoming traffic untouched
3319 * (i.e. do not remove any vlan tags).
3320 */
3321 __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3322 &update_params->update_flags);
3323 __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3324 &update_params->update_flags);
3325 } else {
3326 /* configure the new vlan to device */
3327 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3328 ramrod_param.vlan_mac_obj = vlan_obj;
3329 ramrod_param.ramrod_flags = ramrod_flags;
3330 ramrod_param.user_req.u.vlan.vlan = vlan;
3331 ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
3332 rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
3333 if (rc) {
3334 BNX2X_ERR("failed to configure vlan\n");
3335 return -EINVAL;
3336 }
3337
3338 /* configure default vlan to vf queue and set silent
3339 * vlan removal (the vf remains unaware of this vlan).
3340 */
3341 update_params = &q_params.params.update;
3342 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3343 &update_params->update_flags);
3344 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3345 &update_params->update_flags);
3346 update_params->def_vlan = vlan;
3347 }
3348
3349 /* Update the Queue state */
3350 rc = bnx2x_queue_state_change(bp, &q_params);
3351 if (rc) {
3352 BNX2X_ERR("Failed to configure default VLAN\n");
3353 return rc;
3354 }
3355
3356 /* clear the flag indicating that this VF needs its vlan
3357 * (will only be set if the HV configured th Vlan before vf was
3358 * and we were called because the VF came up later
3359 */
3360 vf->cfg_flags &= ~VF_CFG_VLAN;
3361
3362 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3363 }
3364 return 0;
3365 }
3366
3367 /* crc is the first field in the bulletin board. Compute the crc over the
3368 * entire bulletin board excluding the crc field itself. Use the length field
3369 * as the Bulletin Board was posted by a PF with possibly a different version
3370 * from the vf which will sample it. Therefore, the length is computed by the
3371 * PF and the used blindly by the VF.
3372 */
3373 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
3374 struct pf_vf_bulletin_content *bulletin)
3375 {
3376 return crc32(BULLETIN_CRC_SEED,
3377 ((u8 *)bulletin) + sizeof(bulletin->crc),
3378 bulletin->length - sizeof(bulletin->crc));
3379 }
3380
3381 /* Check for new posts on the bulletin board */
3382 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
3383 {
3384 struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
3385 int attempts;
3386
3387 /* bulletin board hasn't changed since last sample */
3388 if (bp->old_bulletin.version == bulletin.version)
3389 return PFVF_BULLETIN_UNCHANGED;
3390
3391 /* validate crc of new bulletin board */
3392 if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) {
3393 /* sampling structure in mid post may result with corrupted data
3394 * validate crc to ensure coherency.
3395 */
3396 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
3397 bulletin = bp->pf2vf_bulletin->content;
3398 if (bulletin.crc == bnx2x_crc_vf_bulletin(bp,
3399 &bulletin))
3400 break;
3401 BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
3402 bulletin.crc,
3403 bnx2x_crc_vf_bulletin(bp, &bulletin));
3404 }
3405 if (attempts >= BULLETIN_ATTEMPTS) {
3406 BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
3407 attempts);
3408 return PFVF_BULLETIN_CRC_ERR;
3409 }
3410 }
3411
3412 /* the mac address in bulletin board is valid and is new */
3413 if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID &&
3414 memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) {
3415 /* update new mac to net device */
3416 memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
3417 }
3418
3419 /* the vlan in bulletin board is valid and is new */
3420 if (bulletin.valid_bitmap & 1 << VLAN_VALID)
3421 memcpy(&bulletin.vlan, &bp->old_bulletin.vlan, VLAN_HLEN);
3422
3423 /* copy new bulletin board to bp */
3424 bp->old_bulletin = bulletin;
3425
3426 return PFVF_BULLETIN_UPDATED;
3427 }
3428
3429 void bnx2x_timer_sriov(struct bnx2x *bp)
3430 {
3431 bnx2x_sample_bulletin(bp);
3432
3433 /* if channel is down we need to self destruct */
3434 if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
3435 smp_mb__before_clear_bit();
3436 set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
3437 &bp->sp_rtnl_state);
3438 smp_mb__after_clear_bit();
3439 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3440 }
3441 }
3442
3443 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
3444 {
3445 /* vf doorbells are embedded within the regview */
3446 return bp->regview + PXP_VF_ADDR_DB_START;
3447 }
3448
3449 int bnx2x_vf_pci_alloc(struct bnx2x *bp)
3450 {
3451 mutex_init(&bp->vf2pf_mutex);
3452
3453 /* allocate vf2pf mailbox for vf to pf channel */
3454 BNX2X_PCI_ALLOC(bp->vf2pf_mbox, &bp->vf2pf_mbox_mapping,
3455 sizeof(struct bnx2x_vf_mbx_msg));
3456
3457 /* allocate pf 2 vf bulletin board */
3458 BNX2X_PCI_ALLOC(bp->pf2vf_bulletin, &bp->pf2vf_bulletin_mapping,
3459 sizeof(union pf_vf_bulletin));
3460
3461 return 0;
3462
3463 alloc_mem_err:
3464 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
3465 sizeof(struct bnx2x_vf_mbx_msg));
3466 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping,
3467 sizeof(union pf_vf_bulletin));
3468 return -ENOMEM;
3469 }
3470
3471 int bnx2x_open_epilog(struct bnx2x *bp)
3472 {
3473 /* Enable sriov via delayed work. This must be done via delayed work
3474 * because it causes the probe of the vf devices to be run, which invoke
3475 * register_netdevice which must have rtnl lock taken. As we are holding
3476 * the lock right now, that could only work if the probe would not take
3477 * the lock. However, as the probe of the vf may be called from other
3478 * contexts as well (such as passthrough to vm fails) it can't assume
3479 * the lock is being held for it. Using delayed work here allows the
3480 * probe code to simply take the lock (i.e. wait for it to be released
3481 * if it is being held). We only want to do this if the number of VFs
3482 * was set before PF driver was loaded.
3483 */
3484 if (IS_SRIOV(bp) && BNX2X_NR_VIRTFN(bp)) {
3485 smp_mb__before_clear_bit();
3486 set_bit(BNX2X_SP_RTNL_ENABLE_SRIOV, &bp->sp_rtnl_state);
3487 smp_mb__after_clear_bit();
3488 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3489 }
3490
3491 return 0;
3492 }
3493
3494 void bnx2x_iov_channel_down(struct bnx2x *bp)
3495 {
3496 int vf_idx;
3497 struct pf_vf_bulletin_content *bulletin;
3498
3499 if (!IS_SRIOV(bp))
3500 return;
3501
3502 for_each_vf(bp, vf_idx) {
3503 /* locate this VFs bulletin board and update the channel down
3504 * bit
3505 */
3506 bulletin = BP_VF_BULLETIN(bp, vf_idx);
3507 bulletin->valid_bitmap |= 1 << CHANNEL_DOWN;
3508
3509 /* update vf bulletin board */
3510 bnx2x_post_vf_bulletin(bp, vf_idx);
3511 }
3512 }
Linux kernel - Deliverables
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