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_CLR_MCAST,
 170            BNX2X_VFOP_QTEARDOWN_QDTOR,
 171            BNX2X_VFOP_QTEARDOWN_DONE
 172 };
 173
 174 enum bnx2x_vfop_rss_state {
 175            BNX2X_VFOP_RSS_CONFIG,
 176            BNX2X_VFOP_RSS_DONE
 177 };
 178
 179 #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0)
 180
 181 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
 182                               struct bnx2x_queue_init_params *init_params,
 183                               struct bnx2x_queue_setup_params *setup_params,
 184                               u16 q_idx, u16 sb_idx)
 185 {
 186         DP(BNX2X_MSG_IOV,
 187            "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d",
 188            vf->abs_vfid,
 189            q_idx,
 190            sb_idx,
 191            init_params->tx.sb_cq_index,
 192            init_params->tx.hc_rate,
 193            setup_params->flags,
 194            setup_params->txq_params.traffic_type);
 195 }
 196
 197 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
 198                             struct bnx2x_queue_init_params *init_params,
 199                             struct bnx2x_queue_setup_params *setup_params,
 200                             u16 q_idx, u16 sb_idx)
 201 {
 202         struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params;
 203
 204         DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n"
 205            "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n",
 206            vf->abs_vfid,
 207            q_idx,
 208            sb_idx,
 209            init_params->rx.sb_cq_index,
 210            init_params->rx.hc_rate,
 211            setup_params->gen_params.mtu,
 212            rxq_params->buf_sz,
 213            rxq_params->sge_buf_sz,
 214            rxq_params->max_sges_pkt,
 215            rxq_params->tpa_agg_sz,
 216            setup_params->flags,
 217            rxq_params->drop_flags,
 218            rxq_params->cache_line_log);
 219 }
 220
 221 void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
 222                            struct bnx2x_virtf *vf,
 223                            struct bnx2x_vf_queue *q,
 224                            struct bnx2x_vfop_qctor_params *p,
 225                            unsigned long q_type)
 226 {
 227         struct bnx2x_queue_init_params *init_p = &p->qstate.params.init;
 228         struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup;
 229
 230         /* INIT */
 231
 232         /* Enable host coalescing in the transition to INIT state */
 233         if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags))
 234                 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags);
 235
 236         if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags))
 237                 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags);
 238
 239         /* FW SB ID */
 240         init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 241         init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 242
 243         /* context */
 244         init_p->cxts[0] = q->cxt;
 245
 246         /* SETUP */
 247
 248         /* Setup-op general parameters */
 249         setup_p->gen_params.spcl_id = vf->sp_cl_id;
 250         setup_p->gen_params.stat_id = vfq_stat_id(vf, q);
 251
 252         /* Setup-op pause params:
 253          * Nothing to do, the pause thresholds are set by default to 0 which
 254          * effectively turns off the feature for this queue. We don't want
 255          * one queue (VF) to interfering with another queue (another VF)
 256          */
 257         if (vf->cfg_flags & VF_CFG_FW_FC)
 258                 BNX2X_ERR("No support for pause to VFs (abs_vfid: %d)\n",
 259                           vf->abs_vfid);
 260         /* Setup-op flags:
 261          * collect statistics, zero statistics, local-switching, security,
 262          * OV for Flex10, RSS and MCAST for leading
 263          */
 264         if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags))
 265                 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags);
 266
 267         /* for VFs, enable tx switching, bd coherency, and mac address
 268          * anti-spoofing
 269          */
 270         __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags);
 271         __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags);
 272         __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
 273
 274         /* Setup-op rx parameters */
 275         if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) {
 276                 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params;
 277
 278                 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q);
 279                 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 280                 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid);
 281
 282                 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags))
 283                         rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES;
 284         }
 285
 286         /* Setup-op tx parameters */
 287         if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) {
 288                 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss;
 289                 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 290         }
 291 }
 292
 293 /* VFOP queue construction */
 294 static void bnx2x_vfop_qctor(struct bnx2x *bp, struct bnx2x_virtf *vf)
 295 {
 296         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 297         struct bnx2x_vfop_args_qctor *args = &vfop->args.qctor;
 298         struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
 299         enum bnx2x_vfop_qctor_state state = vfop->state;
 300
 301         bnx2x_vfop_reset_wq(vf);
 302
 303         if (vfop->rc < 0)
 304                 goto op_err;
 305
 306         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 307
 308         switch (state) {
 309         case BNX2X_VFOP_QCTOR_INIT:
 310
 311                 /* has this queue already been opened? */
 312                 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
 313                     BNX2X_Q_LOGICAL_STATE_ACTIVE) {
 314                         DP(BNX2X_MSG_IOV,
 315                            "Entered qctor but queue was already up. Aborting gracefully\n");
 316                         goto op_done;
 317                 }
 318
 319                 /* next state */
 320                 vfop->state = BNX2X_VFOP_QCTOR_SETUP;
 321
 322                 q_params->cmd = BNX2X_Q_CMD_INIT;
 323                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 324
 325                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 326
 327         case BNX2X_VFOP_QCTOR_SETUP:
 328                 /* next state */
 329                 vfop->state = BNX2X_VFOP_QCTOR_INT_EN;
 330
 331                 /* copy pre-prepared setup params to the queue-state params */
 332                 vfop->op_p->qctor.qstate.params.setup =
 333                         vfop->op_p->qctor.prep_qsetup;
 334
 335                 q_params->cmd = BNX2X_Q_CMD_SETUP;
 336                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 337
 338                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 339
 340         case BNX2X_VFOP_QCTOR_INT_EN:
 341
 342                 /* enable interrupts */
 343                 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, args->sb_idx),
 344                                     USTORM_ID, 0, IGU_INT_ENABLE, 0);
 345                 goto op_done;
 346         default:
 347                 bnx2x_vfop_default(state);
 348         }
 349 op_err:
 350         BNX2X_ERR("QCTOR[%d:%d] error: cmd %d, rc %d\n",
 351                   vf->abs_vfid, args->qid, q_params->cmd, vfop->rc);
 352 op_done:
 353         bnx2x_vfop_end(bp, vf, vfop);
 354 op_pending:
 355         return;
 356 }
 357
 358 static int bnx2x_vfop_qctor_cmd(struct bnx2x *bp,
 359                                 struct bnx2x_virtf *vf,
 360                                 struct bnx2x_vfop_cmd *cmd,
 361                                 int qid)
 362 {
 363         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 364
 365         if (vfop) {
 366                 vf->op_params.qctor.qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
 367
 368                 vfop->args.qctor.qid = qid;
 369                 vfop->args.qctor.sb_idx = bnx2x_vfq(vf, qid, sb_idx);
 370
 371                 bnx2x_vfop_opset(BNX2X_VFOP_QCTOR_INIT,
 372                                  bnx2x_vfop_qctor, cmd->done);
 373                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qctor,
 374                                              cmd->block);
 375         }
 376         return -ENOMEM;
 377 }
 378
 379 /* VFOP queue destruction */
 380 static void bnx2x_vfop_qdtor(struct bnx2x *bp, struct bnx2x_virtf *vf)
 381 {
 382         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 383         struct bnx2x_vfop_args_qdtor *qdtor = &vfop->args.qdtor;
 384         struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
 385         enum bnx2x_vfop_qdtor_state state = vfop->state;
 386
 387         bnx2x_vfop_reset_wq(vf);
 388
 389         if (vfop->rc < 0)
 390                 goto op_err;
 391
 392         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 393
 394         switch (state) {
 395         case BNX2X_VFOP_QDTOR_HALT:
 396
 397                 /* has this queue already been stopped? */
 398                 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
 399                     BNX2X_Q_LOGICAL_STATE_STOPPED) {
 400                         DP(BNX2X_MSG_IOV,
 401                            "Entered qdtor but queue was already stopped. Aborting gracefully\n");
 402
 403                         /* next state */
 404                         vfop->state = BNX2X_VFOP_QDTOR_DONE;
 405
 406                         bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 407                 }
 408
 409                 /* next state */
 410                 vfop->state = BNX2X_VFOP_QDTOR_TERMINATE;
 411
 412                 q_params->cmd = BNX2X_Q_CMD_HALT;
 413                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 414
 415                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 416
 417         case BNX2X_VFOP_QDTOR_TERMINATE:
 418                 /* next state */
 419                 vfop->state = BNX2X_VFOP_QDTOR_CFCDEL;
 420
 421                 q_params->cmd = BNX2X_Q_CMD_TERMINATE;
 422                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 423
 424                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 425
 426         case BNX2X_VFOP_QDTOR_CFCDEL:
 427                 /* next state */
 428                 vfop->state = BNX2X_VFOP_QDTOR_DONE;
 429
 430                 q_params->cmd = BNX2X_Q_CMD_CFC_DEL;
 431                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 432
 433                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 434 op_err:
 435         BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n",
 436                   vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc);
 437 op_done:
 438         case BNX2X_VFOP_QDTOR_DONE:
 439                 /* invalidate the context */
 440                 if (qdtor->cxt) {
 441                         qdtor->cxt->ustorm_ag_context.cdu_usage = 0;
 442                         qdtor->cxt->xstorm_ag_context.cdu_reserved = 0;
 443                 }
 444                 bnx2x_vfop_end(bp, vf, vfop);
 445                 return;
 446         default:
 447                 bnx2x_vfop_default(state);
 448         }
 449 op_pending:
 450         return;
 451 }
 452
 453 static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
 454                                 struct bnx2x_virtf *vf,
 455                                 struct bnx2x_vfop_cmd *cmd,
 456                                 int qid)
 457 {
 458         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 459
 460         if (vfop) {
 461                 struct bnx2x_queue_state_params *qstate =
 462                         &vf->op_params.qctor.qstate;
 463
 464                 memset(qstate, 0, sizeof(*qstate));
 465                 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
 466
 467                 vfop->args.qdtor.qid = qid;
 468                 vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt);
 469
 470                 bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT,
 471                                  bnx2x_vfop_qdtor, cmd->done);
 472                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
 473                                              cmd->block);
 474         } else {
 475                 BNX2X_ERR("VF[%d] failed to add a vfop\n", vf->abs_vfid);
 476                 return -ENOMEM;
 477         }
 478 }
 479
 480 static void
 481 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
 482 {
 483         struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
 484         if (vf) {
 485                 /* the first igu entry belonging to VFs of this PF */
 486                 if (!BP_VFDB(bp)->first_vf_igu_entry)
 487                         BP_VFDB(bp)->first_vf_igu_entry = igu_sb_id;
 488
 489                 /* the first igu entry belonging to this VF */
 490                 if (!vf_sb_count(vf))
 491                         vf->igu_base_id = igu_sb_id;
 492
 493                 ++vf_sb_count(vf);
 494                 ++vf->sb_count;
 495         }
 496         BP_VFDB(bp)->vf_sbs_pool++;
 497 }
 498
 499 /* VFOP MAC/VLAN helpers */
 500 static inline void bnx2x_vfop_credit(struct bnx2x *bp,
 501                                      struct bnx2x_vfop *vfop,
 502                                      struct bnx2x_vlan_mac_obj *obj)
 503 {
 504         struct bnx2x_vfop_args_filters *args = &vfop->args.filters;
 505
 506         /* update credit only if there is no error
 507          * and a valid credit counter
 508          */
 509         if (!vfop->rc && args->credit) {
 510                 struct list_head *pos;
 511                 int read_lock;
 512                 int cnt = 0;
 513
 514                 read_lock = bnx2x_vlan_mac_h_read_lock(bp, obj);
 515                 if (read_lock)
 516                         DP(BNX2X_MSG_SP, "Failed to take vlan mac read head; continuing anyway\n");
 517
 518                 list_for_each(pos, &obj->head)
 519                         cnt++;
 520
 521                 if (!read_lock)
 522                         bnx2x_vlan_mac_h_read_unlock(bp, obj);
 523
 524                 atomic_set(args->credit, cnt);
 525         }
 526 }
 527
 528 static int bnx2x_vfop_set_user_req(struct bnx2x *bp,
 529                                     struct bnx2x_vfop_filter *pos,
 530                                     struct bnx2x_vlan_mac_data *user_req)
 531 {
 532         user_req->cmd = pos->add ? BNX2X_VLAN_MAC_ADD :
 533                 BNX2X_VLAN_MAC_DEL;
 534
 535         switch (pos->type) {
 536         case BNX2X_VFOP_FILTER_MAC:
 537                 memcpy(user_req->u.mac.mac, pos->mac, ETH_ALEN);
 538                 break;
 539         case BNX2X_VFOP_FILTER_VLAN:
 540                 user_req->u.vlan.vlan = pos->vid;
 541                 break;
 542         default:
 543                 BNX2X_ERR("Invalid filter type, skipping\n");
 544                 return 1;
 545         }
 546         return 0;
 547 }
 548
 549 static int bnx2x_vfop_config_list(struct bnx2x *bp,
 550                                   struct bnx2x_vfop_filters *filters,
 551                                   struct bnx2x_vlan_mac_ramrod_params *vlan_mac)
 552 {
 553         struct bnx2x_vfop_filter *pos, *tmp;
 554         struct list_head rollback_list, *filters_list = &filters->head;
 555         struct bnx2x_vlan_mac_data *user_req = &vlan_mac->user_req;
 556         int rc = 0, cnt = 0;
 557
 558         INIT_LIST_HEAD(&rollback_list);
 559
 560         list_for_each_entry_safe(pos, tmp, filters_list, link) {
 561                 if (bnx2x_vfop_set_user_req(bp, pos, user_req))
 562                         continue;
 563
 564                 rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 565                 if (rc >= 0) {
 566                         cnt += pos->add ? 1 : -1;
 567                         list_move(&pos->link, &rollback_list);
 568                         rc = 0;
 569                 } else if (rc == -EEXIST) {
 570                         rc = 0;
 571                 } else {
 572                         BNX2X_ERR("Failed to add a new vlan_mac command\n");
 573                         break;
 574                 }
 575         }
 576
 577         /* rollback if error or too many rules added */
 578         if (rc || cnt > filters->add_cnt) {
 579                 BNX2X_ERR("error or too many rules added. Performing rollback\n");
 580                 list_for_each_entry_safe(pos, tmp, &rollback_list, link) {
 581                         pos->add = !pos->add;   /* reverse op */
 582                         bnx2x_vfop_set_user_req(bp, pos, user_req);
 583                         bnx2x_config_vlan_mac(bp, vlan_mac);
 584                         list_del(&pos->link);
 585                 }
 586                 cnt = 0;
 587                 if (!rc)
 588                         rc = -EINVAL;
 589         }
 590         filters->add_cnt = cnt;
 591         return rc;
 592 }
 593
 594 /* VFOP set VLAN/MAC */
 595 static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
 596 {
 597         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 598         struct bnx2x_vlan_mac_ramrod_params *vlan_mac = &vfop->op_p->vlan_mac;
 599         struct bnx2x_vlan_mac_obj *obj = vlan_mac->vlan_mac_obj;
 600         struct bnx2x_vfop_filters *filters = vfop->args.filters.multi_filter;
 601
 602         enum bnx2x_vfop_vlan_mac_state state = vfop->state;
 603
 604         if (vfop->rc < 0)
 605                 goto op_err;
 606
 607         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 608
 609         bnx2x_vfop_reset_wq(vf);
 610
 611         switch (state) {
 612         case BNX2X_VFOP_VLAN_MAC_CLEAR:
 613                 /* next state */
 614                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 615
 616                 /* do delete */
 617                 vfop->rc = obj->delete_all(bp, obj,
 618                                            &vlan_mac->user_req.vlan_mac_flags,
 619                                            &vlan_mac->ramrod_flags);
 620
 621                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 622
 623         case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE:
 624                 /* next state */
 625                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 626
 627                 /* do config */
 628                 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 629                 if (vfop->rc == -EEXIST)
 630                         vfop->rc = 0;
 631
 632                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 633
 634         case BNX2X_VFOP_VLAN_MAC_CHK_DONE:
 635                 vfop->rc = !!obj->raw.check_pending(&obj->raw);
 636                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 637
 638         case BNX2X_VFOP_MAC_CONFIG_LIST:
 639                 /* next state */
 640                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 641
 642                 /* do list config */
 643                 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
 644                 if (vfop->rc)
 645                         goto op_err;
 646
 647                 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
 648                 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 649                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 650
 651         case BNX2X_VFOP_VLAN_CONFIG_LIST:
 652                 /* next state */
 653                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 654
 655                 /* do list config */
 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_DONE);
 662
 663         default:
 664                 bnx2x_vfop_default(state);
 665         }
 666 op_err:
 667         BNX2X_ERR("VLAN-MAC error: rc %d\n", vfop->rc);
 668 op_done:
 669         kfree(filters);
 670         bnx2x_vfop_credit(bp, vfop, obj);
 671         bnx2x_vfop_end(bp, vf, vfop);
 672 op_pending:
 673         return;
 674 }
 675
 676 struct bnx2x_vfop_vlan_mac_flags {
 677         bool drv_only;
 678         bool dont_consume;
 679         bool single_cmd;
 680         bool add;
 681 };
 682
 683 static void
 684 bnx2x_vfop_vlan_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
 685                                 struct bnx2x_vfop_vlan_mac_flags *flags)
 686 {
 687         struct bnx2x_vlan_mac_data *ureq = &ramrod->user_req;
 688
 689         memset(ramrod, 0, sizeof(*ramrod));
 690
 691         /* ramrod flags */
 692         if (flags->drv_only)
 693                 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod->ramrod_flags);
 694         if (flags->single_cmd)
 695                 set_bit(RAMROD_EXEC, &ramrod->ramrod_flags);
 696
 697         /* mac_vlan flags */
 698         if (flags->dont_consume)
 699                 set_bit(BNX2X_DONT_CONSUME_CAM_CREDIT, &ureq->vlan_mac_flags);
 700
 701         /* cmd */
 702         ureq->cmd = flags->add ? BNX2X_VLAN_MAC_ADD : BNX2X_VLAN_MAC_DEL;
 703 }
 704
 705 static inline void
 706 bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
 707                            struct bnx2x_vfop_vlan_mac_flags *flags)
 708 {
 709         bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, flags);
 710         set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags);
 711 }
 712
 713 static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp,
 714                                      struct bnx2x_virtf *vf,
 715                                      struct bnx2x_vfop_cmd *cmd,
 716                                      int qid, bool drv_only)
 717 {
 718         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 719         int rc;
 720
 721         if (vfop) {
 722                 struct bnx2x_vfop_args_filters filters = {
 723                         .multi_filter = NULL,   /* single */
 724                         .credit = NULL,         /* consume credit */
 725                 };
 726                 struct bnx2x_vfop_vlan_mac_flags flags = {
 727                         .drv_only = drv_only,
 728                         .dont_consume = (filters.credit != NULL),
 729                         .single_cmd = true,
 730                         .add = false /* don't care */,
 731                 };
 732                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 733                         &vf->op_params.vlan_mac;
 734
 735                 /* set ramrod params */
 736                 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
 737
 738                 /* set object */
 739                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
 740                 if (rc)
 741                         return rc;
 742                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
 743
 744                 /* set extra args */
 745                 vfop->args.filters = filters;
 746
 747                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
 748                                  bnx2x_vfop_vlan_mac, cmd->done);
 749                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 750                                              cmd->block);
 751         }
 752         return -ENOMEM;
 753 }
 754
 755 int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
 756                             struct bnx2x_virtf *vf,
 757                             struct bnx2x_vfop_cmd *cmd,
 758                             struct bnx2x_vfop_filters *macs,
 759                             int qid, bool drv_only)
 760 {
 761         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 762         int rc;
 763
 764         if (vfop) {
 765                 struct bnx2x_vfop_args_filters filters = {
 766                         .multi_filter = macs,
 767                         .credit = NULL,         /* consume credit */
 768                 };
 769                 struct bnx2x_vfop_vlan_mac_flags flags = {
 770                         .drv_only = drv_only,
 771                         .dont_consume = (filters.credit != NULL),
 772                         .single_cmd = false,
 773                         .add = false, /* don't care since only the items in the
 774                                        * filters list affect the sp operation,
 775                                        * not the list itself
 776                                        */
 777                 };
 778                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 779                         &vf->op_params.vlan_mac;
 780
 781                 /* set ramrod params */
 782                 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
 783
 784                 /* set object */
 785                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
 786                 if (rc)
 787                         return rc;
 788                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
 789
 790                 /* set extra args */
 791                 filters.multi_filter->add_cnt = BNX2X_VFOP_FILTER_ADD_CNT_MAX;
 792                 vfop->args.filters = filters;
 793
 794                 bnx2x_vfop_opset(BNX2X_VFOP_MAC_CONFIG_LIST,
 795                                  bnx2x_vfop_vlan_mac, cmd->done);
 796                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 797                                              cmd->block);
 798         }
 799         return -ENOMEM;
 800 }
 801
 802 int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
 803                             struct bnx2x_virtf *vf,
 804                             struct bnx2x_vfop_cmd *cmd,
 805                             int qid, u16 vid, bool add)
 806 {
 807         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 808         int rc;
 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                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
 830                 if (rc)
 831                         return rc;
 832                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
 833
 834                 /* set extra args */
 835                 vfop->args.filters = filters;
 836
 837                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
 838                                  bnx2x_vfop_vlan_mac, cmd->done);
 839                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 840                                              cmd->block);
 841         }
 842         return -ENOMEM;
 843 }
 844
 845 static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp,
 846                                struct bnx2x_virtf *vf,
 847                                struct bnx2x_vfop_cmd *cmd,
 848                                int qid, bool drv_only)
 849 {
 850         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 851         int rc;
 852
 853         if (vfop) {
 854                 struct bnx2x_vfop_args_filters filters = {
 855                         .multi_filter = NULL, /* single command */
 856                         .credit = &bnx2x_vfq(vf, qid, vlan_count),
 857                 };
 858                 struct bnx2x_vfop_vlan_mac_flags flags = {
 859                         .drv_only = drv_only,
 860                         .dont_consume = (filters.credit != NULL),
 861                         .single_cmd = true,
 862                         .add = false, /* don't care */
 863                 };
 864                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 865                         &vf->op_params.vlan_mac;
 866
 867                 /* set ramrod params */
 868                 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
 869
 870                 /* set object */
 871                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
 872                 if (rc)
 873                         return rc;
 874                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
 875
 876                 /* set extra args */
 877                 vfop->args.filters = filters;
 878
 879                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
 880                                  bnx2x_vfop_vlan_mac, cmd->done);
 881                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 882                                              cmd->block);
 883         }
 884         return -ENOMEM;
 885 }
 886
 887 int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
 888                              struct bnx2x_virtf *vf,
 889                              struct bnx2x_vfop_cmd *cmd,
 890                              struct bnx2x_vfop_filters *vlans,
 891                              int qid, bool drv_only)
 892 {
 893         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 894         int rc;
 895
 896         if (vfop) {
 897                 struct bnx2x_vfop_args_filters filters = {
 898                         .multi_filter = vlans,
 899                         .credit = &bnx2x_vfq(vf, qid, vlan_count),
 900                 };
 901                 struct bnx2x_vfop_vlan_mac_flags flags = {
 902                         .drv_only = drv_only,
 903                         .dont_consume = (filters.credit != NULL),
 904                         .single_cmd = false,
 905                         .add = false, /* don't care */
 906                 };
 907                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 908                         &vf->op_params.vlan_mac;
 909
 910                 /* set ramrod params */
 911                 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
 912
 913                 /* set object */
 914                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
 915                 if (rc)
 916                         return rc;
 917                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
 918
 919                 /* set extra args */
 920                 filters.multi_filter->add_cnt = vf_vlan_rules_cnt(vf) -
 921                         atomic_read(filters.credit);
 922
 923                 vfop->args.filters = filters;
 924
 925                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_CONFIG_LIST,
 926                                  bnx2x_vfop_vlan_mac, cmd->done);
 927                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 928                                              cmd->block);
 929         }
 930         return -ENOMEM;
 931 }
 932
 933 /* VFOP queue setup (queue constructor + set vlan 0) */
 934 static void bnx2x_vfop_qsetup(struct bnx2x *bp, struct bnx2x_virtf *vf)
 935 {
 936         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 937         int qid = vfop->args.qctor.qid;
 938         enum bnx2x_vfop_qsetup_state state = vfop->state;
 939         struct bnx2x_vfop_cmd cmd = {
 940                 .done = bnx2x_vfop_qsetup,
 941                 .block = false,
 942         };
 943
 944         if (vfop->rc < 0)
 945                 goto op_err;
 946
 947         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 948
 949         switch (state) {
 950         case BNX2X_VFOP_QSETUP_CTOR:
 951                 /* init the queue ctor command */
 952                 vfop->state = BNX2X_VFOP_QSETUP_VLAN0;
 953                 vfop->rc = bnx2x_vfop_qctor_cmd(bp, vf, &cmd, qid);
 954                 if (vfop->rc)
 955                         goto op_err;
 956                 return;
 957
 958         case BNX2X_VFOP_QSETUP_VLAN0:
 959                 /* skip if non-leading or FPGA/EMU*/
 960                 if (qid)
 961                         goto op_done;
 962
 963                 /* init the queue set-vlan command (for vlan 0) */
 964                 vfop->state = BNX2X_VFOP_QSETUP_DONE;
 965                 vfop->rc = bnx2x_vfop_vlan_set_cmd(bp, vf, &cmd, qid, 0, true);
 966                 if (vfop->rc)
 967                         goto op_err;
 968                 return;
 969 op_err:
 970         BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, vfop->rc);
 971 op_done:
 972         case BNX2X_VFOP_QSETUP_DONE:
 973                 vf->cfg_flags |= VF_CFG_VLAN;
 974                 smp_mb__before_clear_bit();
 975                 set_bit(BNX2X_SP_RTNL_HYPERVISOR_VLAN,
 976                         &bp->sp_rtnl_state);
 977                 smp_mb__after_clear_bit();
 978                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
 979                 bnx2x_vfop_end(bp, vf, vfop);
 980                 return;
 981         default:
 982                 bnx2x_vfop_default(state);
 983         }
 984 }
 985
 986 int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp,
 987                           struct bnx2x_virtf *vf,
 988                           struct bnx2x_vfop_cmd *cmd,
 989                           int qid)
 990 {
 991         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 992
 993         if (vfop) {
 994                 vfop->args.qctor.qid = qid;
 995
 996                 bnx2x_vfop_opset(BNX2X_VFOP_QSETUP_CTOR,
 997                                  bnx2x_vfop_qsetup, cmd->done);
 998                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qsetup,
 999                                              cmd->block);
1000         }
1001         return -ENOMEM;
1002 }
1003
1004 /* VFOP queue FLR handling (clear vlans, clear macs, queue destructor) */
1005 static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1006 {
1007         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1008         int qid = vfop->args.qx.qid;
1009         enum bnx2x_vfop_qflr_state state = vfop->state;
1010         struct bnx2x_queue_state_params *qstate;
1011         struct bnx2x_vfop_cmd cmd;
1012
1013         bnx2x_vfop_reset_wq(vf);
1014
1015         if (vfop->rc < 0)
1016                 goto op_err;
1017
1018         DP(BNX2X_MSG_IOV, "VF[%d] STATE: %d\n", vf->abs_vfid, state);
1019
1020         cmd.done = bnx2x_vfop_qflr;
1021         cmd.block = false;
1022
1023         switch (state) {
1024         case BNX2X_VFOP_QFLR_CLR_VLAN:
1025                 /* vlan-clear-all: driver-only, don't consume credit */
1026                 vfop->state = BNX2X_VFOP_QFLR_CLR_MAC;
1027                 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj)))
1028                         vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid,
1029                                                               true);
1030                 if (vfop->rc)
1031                         goto op_err;
1032                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1033
1034         case BNX2X_VFOP_QFLR_CLR_MAC:
1035                 /* mac-clear-all: driver only consume credit */
1036                 vfop->state = BNX2X_VFOP_QFLR_TERMINATE;
1037                 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj)))
1038                         vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid,
1039                                                              true);
1040                 DP(BNX2X_MSG_IOV,
1041                    "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d",
1042                    vf->abs_vfid, vfop->rc);
1043                 if (vfop->rc)
1044                         goto op_err;
1045                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1046
1047         case BNX2X_VFOP_QFLR_TERMINATE:
1048                 qstate = &vfop->op_p->qctor.qstate;
1049                 memset(qstate , 0, sizeof(*qstate));
1050                 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
1051                 vfop->state = BNX2X_VFOP_QFLR_DONE;
1052
1053                 DP(BNX2X_MSG_IOV, "VF[%d] qstate during flr was %d\n",
1054                    vf->abs_vfid, qstate->q_obj->state);
1055
1056                 if (qstate->q_obj->state != BNX2X_Q_STATE_RESET) {
1057                         qstate->q_obj->state = BNX2X_Q_STATE_STOPPED;
1058                         qstate->cmd = BNX2X_Q_CMD_TERMINATE;
1059                         vfop->rc = bnx2x_queue_state_change(bp, qstate);
1060                         bnx2x_vfop_finalize(vf, vfop->rc, VFOP_VERIFY_PEND);
1061                 } else {
1062                         goto op_done;
1063                 }
1064
1065 op_err:
1066         BNX2X_ERR("QFLR[%d:%d] error: rc %d\n",
1067                   vf->abs_vfid, qid, vfop->rc);
1068 op_done:
1069         case BNX2X_VFOP_QFLR_DONE:
1070                 bnx2x_vfop_end(bp, vf, vfop);
1071                 return;
1072         default:
1073                 bnx2x_vfop_default(state);
1074         }
1075 op_pending:
1076         return;
1077 }
1078
1079 static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp,
1080                                struct bnx2x_virtf *vf,
1081                                struct bnx2x_vfop_cmd *cmd,
1082                                int qid)
1083 {
1084         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1085
1086         if (vfop) {
1087                 vfop->args.qx.qid = qid;
1088                 bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN,
1089                                  bnx2x_vfop_qflr, cmd->done);
1090                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr,
1091                                              cmd->block);
1092         }
1093         return -ENOMEM;
1094 }
1095
1096 /* VFOP multi-casts */
1097 static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf)
1098 {
1099         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1100         struct bnx2x_mcast_ramrod_params *mcast = &vfop->op_p->mcast;
1101         struct bnx2x_raw_obj *raw = &mcast->mcast_obj->raw;
1102         struct bnx2x_vfop_args_mcast *args = &vfop->args.mc_list;
1103         enum bnx2x_vfop_mcast_state state = vfop->state;
1104         int i;
1105
1106         bnx2x_vfop_reset_wq(vf);
1107
1108         if (vfop->rc < 0)
1109                 goto op_err;
1110
1111         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1112
1113         switch (state) {
1114         case BNX2X_VFOP_MCAST_DEL:
1115                 /* clear existing mcasts */
1116                 vfop->state = (args->mc_num) ? BNX2X_VFOP_MCAST_ADD
1117                                              : BNX2X_VFOP_MCAST_CHK_DONE;
1118                 mcast->mcast_list_len = vf->mcast_list_len;
1119                 vf->mcast_list_len = args->mc_num;
1120                 vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL);
1121                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1122
1123         case BNX2X_VFOP_MCAST_ADD:
1124                 if (raw->check_pending(raw))
1125                         goto op_pending;
1126
1127                 /* update mcast list on the ramrod params */
1128                 INIT_LIST_HEAD(&mcast->mcast_list);
1129                 for (i = 0; i < args->mc_num; i++)
1130                         list_add_tail(&(args->mc[i].link),
1131                                       &mcast->mcast_list);
1132                 mcast->mcast_list_len = args->mc_num;
1133
1134                 /* add new mcasts */
1135                 vfop->state = BNX2X_VFOP_MCAST_CHK_DONE;
1136                 vfop->rc = bnx2x_config_mcast(bp, mcast,
1137                                               BNX2X_MCAST_CMD_ADD);
1138                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1139
1140         case BNX2X_VFOP_MCAST_CHK_DONE:
1141                 vfop->rc = raw->check_pending(raw) ? 1 : 0;
1142                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1143         default:
1144                 bnx2x_vfop_default(state);
1145         }
1146 op_err:
1147         BNX2X_ERR("MCAST CONFIG error: rc %d\n", vfop->rc);
1148 op_done:
1149         kfree(args->mc);
1150         bnx2x_vfop_end(bp, vf, vfop);
1151 op_pending:
1152         return;
1153 }
1154
1155 int bnx2x_vfop_mcast_cmd(struct bnx2x *bp,
1156                          struct bnx2x_virtf *vf,
1157                          struct bnx2x_vfop_cmd *cmd,
1158                          bnx2x_mac_addr_t *mcasts,
1159                          int mcast_num, bool drv_only)
1160 {
1161         struct bnx2x_vfop *vfop = NULL;
1162         size_t mc_sz = mcast_num * sizeof(struct bnx2x_mcast_list_elem);
1163         struct bnx2x_mcast_list_elem *mc = mc_sz ? kzalloc(mc_sz, GFP_KERNEL) :
1164                                            NULL;
1165
1166         if (!mc_sz || mc) {
1167                 vfop = bnx2x_vfop_add(bp, vf);
1168                 if (vfop) {
1169                         int i;
1170                         struct bnx2x_mcast_ramrod_params *ramrod =
1171                                 &vf->op_params.mcast;
1172
1173                         /* set ramrod params */
1174                         memset(ramrod, 0, sizeof(*ramrod));
1175                         ramrod->mcast_obj = &vf->mcast_obj;
1176                         if (drv_only)
1177                                 set_bit(RAMROD_DRV_CLR_ONLY,
1178                                         &ramrod->ramrod_flags);
1179
1180                         /* copy mcasts pointers */
1181                         vfop->args.mc_list.mc_num = mcast_num;
1182                         vfop->args.mc_list.mc = mc;
1183                         for (i = 0; i < mcast_num; i++)
1184                                 mc[i].mac = mcasts[i];
1185
1186                         bnx2x_vfop_opset(BNX2X_VFOP_MCAST_DEL,
1187                                          bnx2x_vfop_mcast, cmd->done);
1188                         return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mcast,
1189                                                      cmd->block);
1190                 } else {
1191                         kfree(mc);
1192                 }
1193         }
1194         return -ENOMEM;
1195 }
1196
1197 /* VFOP rx-mode */
1198 static void bnx2x_vfop_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf)
1199 {
1200         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1201         struct bnx2x_rx_mode_ramrod_params *ramrod = &vfop->op_p->rx_mode;
1202         enum bnx2x_vfop_rxmode_state state = vfop->state;
1203
1204         bnx2x_vfop_reset_wq(vf);
1205
1206         if (vfop->rc < 0)
1207                 goto op_err;
1208
1209         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1210
1211         switch (state) {
1212         case BNX2X_VFOP_RXMODE_CONFIG:
1213                 /* next state */
1214                 vfop->state = BNX2X_VFOP_RXMODE_DONE;
1215
1216                 vfop->rc = bnx2x_config_rx_mode(bp, ramrod);
1217                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1218 op_err:
1219                 BNX2X_ERR("RXMODE error: rc %d\n", vfop->rc);
1220 op_done:
1221         case BNX2X_VFOP_RXMODE_DONE:
1222                 bnx2x_vfop_end(bp, vf, vfop);
1223                 return;
1224         default:
1225                 bnx2x_vfop_default(state);
1226         }
1227 op_pending:
1228         return;
1229 }
1230
1231 int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp,
1232                           struct bnx2x_virtf *vf,
1233                           struct bnx2x_vfop_cmd *cmd,
1234                           int qid, unsigned long accept_flags)
1235 {
1236         struct bnx2x_vf_queue *vfq = vfq_get(vf, qid);
1237         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1238
1239         if (vfop) {
1240                 struct bnx2x_rx_mode_ramrod_params *ramrod =
1241                         &vf->op_params.rx_mode;
1242
1243                 memset(ramrod, 0, sizeof(*ramrod));
1244
1245                 /* Prepare ramrod parameters */
1246                 ramrod->cid = vfq->cid;
1247                 ramrod->cl_id = vfq_cl_id(vf, vfq);
1248                 ramrod->rx_mode_obj = &bp->rx_mode_obj;
1249                 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid);
1250
1251                 ramrod->rx_accept_flags = accept_flags;
1252                 ramrod->tx_accept_flags = accept_flags;
1253                 ramrod->pstate = &vf->filter_state;
1254                 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING;
1255
1256                 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
1257                 set_bit(RAMROD_RX, &ramrod->ramrod_flags);
1258                 set_bit(RAMROD_TX, &ramrod->ramrod_flags);
1259
1260                 ramrod->rdata =
1261                         bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2);
1262                 ramrod->rdata_mapping =
1263                         bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2);
1264
1265                 bnx2x_vfop_opset(BNX2X_VFOP_RXMODE_CONFIG,
1266                                  bnx2x_vfop_rxmode, cmd->done);
1267                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rxmode,
1268                                              cmd->block);
1269         }
1270         return -ENOMEM;
1271 }
1272
1273 /* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs,
1274  * queue destructor)
1275  */
1276 static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf)
1277 {
1278         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1279         int qid = vfop->args.qx.qid;
1280         enum bnx2x_vfop_qteardown_state state = vfop->state;
1281         struct bnx2x_vfop_cmd cmd;
1282
1283         if (vfop->rc < 0)
1284                 goto op_err;
1285
1286         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1287
1288         cmd.done = bnx2x_vfop_qdown;
1289         cmd.block = false;
1290
1291         switch (state) {
1292         case BNX2X_VFOP_QTEARDOWN_RXMODE:
1293                 /* Drop all */
1294                 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN;
1295                 vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0);
1296                 if (vfop->rc)
1297                         goto op_err;
1298                 return;
1299
1300         case BNX2X_VFOP_QTEARDOWN_CLR_VLAN:
1301                 /* vlan-clear-all: don't consume credit */
1302                 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC;
1303                 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false);
1304                 if (vfop->rc)
1305                         goto op_err;
1306                 return;
1307
1308         case BNX2X_VFOP_QTEARDOWN_CLR_MAC:
1309                 /* mac-clear-all: consume credit */
1310                 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MCAST;
1311                 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false);
1312                 if (vfop->rc)
1313                         goto op_err;
1314                 return;
1315
1316         case BNX2X_VFOP_QTEARDOWN_CLR_MCAST:
1317                 vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
1318                 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false);
1319                 if (vfop->rc)
1320                         goto op_err;
1321                 return;
1322
1323         case BNX2X_VFOP_QTEARDOWN_QDTOR:
1324                 /* run the queue destruction flow */
1325                 DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n");
1326                 vfop->state = BNX2X_VFOP_QTEARDOWN_DONE;
1327                 DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n");
1328                 vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid);
1329                 DP(BNX2X_MSG_IOV, "returned from cmd\n");
1330                 if (vfop->rc)
1331                         goto op_err;
1332                 return;
1333 op_err:
1334         BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n",
1335                   vf->abs_vfid, qid, vfop->rc);
1336
1337         case BNX2X_VFOP_QTEARDOWN_DONE:
1338                 bnx2x_vfop_end(bp, vf, vfop);
1339                 return;
1340         default:
1341                 bnx2x_vfop_default(state);
1342         }
1343 }
1344
1345 int bnx2x_vfop_qdown_cmd(struct bnx2x *bp,
1346                          struct bnx2x_virtf *vf,
1347                          struct bnx2x_vfop_cmd *cmd,
1348                          int qid)
1349 {
1350         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1351
1352         /* for non leading queues skip directly to qdown sate */
1353         if (vfop) {
1354                 vfop->args.qx.qid = qid;
1355                 bnx2x_vfop_opset(qid == LEADING_IDX ?
1356                                  BNX2X_VFOP_QTEARDOWN_RXMODE :
1357                                  BNX2X_VFOP_QTEARDOWN_QDTOR, bnx2x_vfop_qdown,
1358                                  cmd->done);
1359                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown,
1360                                              cmd->block);
1361         }
1362
1363         return -ENOMEM;
1364 }
1365
1366 /* VF enable primitives
1367  * when pretend is required the caller is responsible
1368  * for calling pretend prior to calling these routines
1369  */
1370
1371 /* internal vf enable - until vf is enabled internally all transactions
1372  * are blocked. This routine should always be called last with pretend.
1373  */
1374 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
1375 {
1376         REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0);
1377 }
1378
1379 /* clears vf error in all semi blocks */
1380 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid)
1381 {
1382         REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid);
1383         REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid);
1384         REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid);
1385         REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid);
1386 }
1387
1388 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid)
1389 {
1390         u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5;
1391         u32 was_err_reg = 0;
1392
1393         switch (was_err_group) {
1394         case 0:
1395             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR;
1396             break;
1397         case 1:
1398             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR;
1399             break;
1400         case 2:
1401             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR;
1402             break;
1403         case 3:
1404             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR;
1405             break;
1406         }
1407         REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f));
1408 }
1409
1410 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
1411 {
1412         int i;
1413         u32 val;
1414
1415         /* Set VF masks and configuration - pretend */
1416         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1417
1418         REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
1419         REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
1420         REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
1421         REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
1422         REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
1423         REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
1424
1425         val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
1426         val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN);
1427         if (vf->cfg_flags & VF_CFG_INT_SIMD)
1428                 val |= IGU_VF_CONF_SINGLE_ISR_EN;
1429         val &= ~IGU_VF_CONF_PARENT_MASK;
1430         val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */
1431         REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
1432
1433         DP(BNX2X_MSG_IOV,
1434            "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n",
1435            vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION));
1436
1437         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1438
1439         /* iterate over all queues, clear sb consumer */
1440         for (i = 0; i < vf_sb_count(vf); i++) {
1441                 u8 igu_sb_id = vf_igu_sb(vf, i);
1442
1443                 /* zero prod memory */
1444                 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0);
1445
1446                 /* clear sb state machine */
1447                 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id,
1448                                        false /* VF */);
1449
1450                 /* disable + update */
1451                 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0,
1452                                     IGU_INT_DISABLE, 1);
1453         }
1454 }
1455
1456 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
1457 {
1458         /* set the VF-PF association in the FW */
1459         storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
1460         storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
1461
1462         /* clear vf errors*/
1463         bnx2x_vf_semi_clear_err(bp, abs_vfid);
1464         bnx2x_vf_pglue_clear_err(bp, abs_vfid);
1465
1466         /* internal vf-enable - pretend */
1467         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid));
1468         DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid);
1469         bnx2x_vf_enable_internal(bp, true);
1470         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1471 }
1472
1473 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)
1474 {
1475         /* Reset vf in IGU  interrupts are still disabled */
1476         bnx2x_vf_igu_reset(bp, vf);
1477
1478         /* pretend to enable the vf with the PBF */
1479         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1480         REG_WR(bp, PBF_REG_DISABLE_VF, 0);
1481         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1482 }
1483
1484 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
1485 {
1486         struct pci_dev *dev;
1487         struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
1488
1489         if (!vf)
1490                 return false;
1491
1492         dev = pci_get_bus_and_slot(vf->bus, vf->devfn);
1493         if (dev)
1494                 return bnx2x_is_pcie_pending(dev);
1495         return false;
1496 }
1497
1498 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
1499 {
1500         /* Verify no pending pci transactions */
1501         if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
1502                 BNX2X_ERR("PCIE Transactions still pending\n");
1503
1504         return 0;
1505 }
1506
1507 /* must be called after the number of PF queues and the number of VFs are
1508  * both known
1509  */
1510 static void
1511 bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1512 {
1513         struct vf_pf_resc_request *resc = &vf->alloc_resc;
1514         u16 vlan_count = 0;
1515
1516         /* will be set only during VF-ACQUIRE */
1517         resc->num_rxqs = 0;
1518         resc->num_txqs = 0;
1519
1520         /* no credit calculations for macs (just yet) */
1521         resc->num_mac_filters = 1;
1522
1523         /* divvy up vlan rules */
1524         vlan_count = bp->vlans_pool.check(&bp->vlans_pool);
1525         vlan_count = 1 << ilog2(vlan_count);
1526         resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp);
1527
1528         /* no real limitation */
1529         resc->num_mc_filters = 0;
1530
1531         /* num_sbs already set */
1532         resc->num_sbs = vf->sb_count;
1533 }
1534
1535 /* FLR routines: */
1536 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1537 {
1538         /* reset the state variables */
1539         bnx2x_iov_static_resc(bp, vf);
1540         vf->state = VF_FREE;
1541 }
1542
1543 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf)
1544 {
1545         u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
1546
1547         /* DQ usage counter */
1548         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1549         bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT,
1550                                         "DQ VF usage counter timed out",
1551                                         poll_cnt);
1552         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1553
1554         /* FW cleanup command - poll for the results */
1555         if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid),
1556                                    poll_cnt))
1557                 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid);
1558
1559         /* verify TX hw is flushed */
1560         bnx2x_tx_hw_flushed(bp, poll_cnt);
1561 }
1562
1563 static void bnx2x_vfop_flr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1564 {
1565         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1566         struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
1567         enum bnx2x_vfop_flr_state state = vfop->state;
1568         struct bnx2x_vfop_cmd cmd = {
1569                 .done = bnx2x_vfop_flr,
1570                 .block = false,
1571         };
1572
1573         if (vfop->rc < 0)
1574                 goto op_err;
1575
1576         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1577
1578         switch (state) {
1579         case BNX2X_VFOP_FLR_QUEUES:
1580                 /* the cleanup operations are valid if and only if the VF
1581                  * was first acquired.
1582                  */
1583                 if (++(qx->qid) < vf_rxq_count(vf)) {
1584                         vfop->rc = bnx2x_vfop_qflr_cmd(bp, vf, &cmd,
1585                                                        qx->qid);
1586                         if (vfop->rc)
1587                                 goto op_err;
1588                         return;
1589                 }
1590                 /* remove multicasts */
1591                 vfop->state = BNX2X_VFOP_FLR_HW;
1592                 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL,
1593                                                 0, true);
1594                 if (vfop->rc)
1595                         goto op_err;
1596                 return;
1597         case BNX2X_VFOP_FLR_HW:
1598
1599                 /* dispatch final cleanup and wait for HW queues to flush */
1600                 bnx2x_vf_flr_clnup_hw(bp, vf);
1601
1602                 /* release VF resources */
1603                 bnx2x_vf_free_resc(bp, vf);
1604
1605                 /* re-open the mailbox */
1606                 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
1607
1608                 goto op_done;
1609         default:
1610                 bnx2x_vfop_default(state);
1611         }
1612 op_err:
1613         BNX2X_ERR("VF[%d] FLR error: rc %d\n", vf->abs_vfid, vfop->rc);
1614 op_done:
1615         vf->flr_clnup_stage = VF_FLR_ACK;
1616         bnx2x_vfop_end(bp, vf, vfop);
1617         bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1618 }
1619
1620 static int bnx2x_vfop_flr_cmd(struct bnx2x *bp,
1621                               struct bnx2x_virtf *vf,
1622                               vfop_handler_t done)
1623 {
1624         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1625         if (vfop) {
1626                 vfop->args.qx.qid = -1; /* loop */
1627                 bnx2x_vfop_opset(BNX2X_VFOP_FLR_QUEUES,
1628                                  bnx2x_vfop_flr, done);
1629                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_flr, false);
1630         }
1631         return -ENOMEM;
1632 }
1633
1634 static void bnx2x_vf_flr_clnup(struct bnx2x *bp, struct bnx2x_virtf *prev_vf)
1635 {
1636         int i = prev_vf ? prev_vf->index + 1 : 0;
1637         struct bnx2x_virtf *vf;
1638
1639         /* find next VF to cleanup */
1640 next_vf_to_clean:
1641         for (;
1642              i < BNX2X_NR_VIRTFN(bp) &&
1643              (bnx2x_vf(bp, i, state) != VF_RESET ||
1644               bnx2x_vf(bp, i, flr_clnup_stage) != VF_FLR_CLN);
1645              i++)
1646                 ;
1647
1648         DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n", i,
1649            BNX2X_NR_VIRTFN(bp));
1650
1651         if (i < BNX2X_NR_VIRTFN(bp)) {
1652                 vf = BP_VF(bp, i);
1653
1654                 /* lock the vf pf channel */
1655                 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1656
1657                 /* invoke the VF FLR SM */
1658                 if (bnx2x_vfop_flr_cmd(bp, vf, bnx2x_vf_flr_clnup)) {
1659                         BNX2X_ERR("VF[%d]: FLR cleanup failed -ENOMEM\n",
1660                                   vf->abs_vfid);
1661
1662                         /* mark the VF to be ACKED and continue */
1663                         vf->flr_clnup_stage = VF_FLR_ACK;
1664                         goto next_vf_to_clean;
1665                 }
1666                 return;
1667         }
1668
1669         /* we are done, update vf records */
1670         for_each_vf(bp, i) {
1671                 vf = BP_VF(bp, i);
1672
1673                 if (vf->flr_clnup_stage != VF_FLR_ACK)
1674                         continue;
1675
1676                 vf->flr_clnup_stage = VF_FLR_EPILOG;
1677         }
1678
1679         /* Acknowledge the handled VFs.
1680          * we are acknowledge all the vfs which an flr was requested for, even
1681          * if amongst them there are such that we never opened, since the mcp
1682          * will interrupt us immediately again if we only ack some of the bits,
1683          * resulting in an endless loop. This can happen for example in KVM
1684          * where an 'all ones' flr request is sometimes given by hyper visor
1685          */
1686         DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n",
1687            bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1688         for (i = 0; i < FLRD_VFS_DWORDS; i++)
1689                 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i],
1690                           bp->vfdb->flrd_vfs[i]);
1691
1692         bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0);
1693
1694         /* clear the acked bits - better yet if the MCP implemented
1695          * write to clear semantics
1696          */
1697         for (i = 0; i < FLRD_VFS_DWORDS; i++)
1698                 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0);
1699 }
1700
1701 void bnx2x_vf_handle_flr_event(struct bnx2x *bp)
1702 {
1703         int i;
1704
1705         /* Read FLR'd VFs */
1706         for (i = 0; i < FLRD_VFS_DWORDS; i++)
1707                 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]);
1708
1709         DP(BNX2X_MSG_MCP,
1710            "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n",
1711            bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1712
1713         for_each_vf(bp, i) {
1714                 struct bnx2x_virtf *vf = BP_VF(bp, i);
1715                 u32 reset = 0;
1716
1717                 if (vf->abs_vfid < 32)
1718                         reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid);
1719                 else
1720                         reset = bp->vfdb->flrd_vfs[1] &
1721                                 (1 << (vf->abs_vfid - 32));
1722
1723                 if (reset) {
1724                         /* set as reset and ready for cleanup */
1725                         vf->state = VF_RESET;
1726                         vf->flr_clnup_stage = VF_FLR_CLN;
1727
1728                         DP(BNX2X_MSG_IOV,
1729                            "Initiating Final cleanup for VF %d\n",
1730                            vf->abs_vfid);
1731                 }
1732         }
1733
1734         /* do the FLR cleanup for all marked VFs*/
1735         bnx2x_vf_flr_clnup(bp, NULL);
1736 }
1737
1738 /* IOV global initialization routines  */
1739 void bnx2x_iov_init_dq(struct bnx2x *bp)
1740 {
1741         if (!IS_SRIOV(bp))
1742                 return;
1743
1744         /* Set the DQ such that the CID reflect the abs_vfid */
1745         REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0);
1746         REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS));
1747
1748         /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to
1749          * the PF L2 queues
1750          */
1751         REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID);
1752
1753         /* The VF window size is the log2 of the max number of CIDs per VF */
1754         REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND);
1755
1756         /* The VF doorbell size  0 - *B, 4 - 128B. We set it here to match
1757          * the Pf doorbell size although the 2 are independent.
1758          */
1759         REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST, 3);
1760
1761         /* No security checks for now -
1762          * configure single rule (out of 16) mask = 0x1, value = 0x0,
1763          * CID range 0 - 0x1ffff
1764          */
1765         REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1);
1766         REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0);
1767         REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0);
1768         REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff);
1769
1770         /* set the VF doorbell threshold */
1771         REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 4);
1772 }
1773
1774 void bnx2x_iov_init_dmae(struct bnx2x *bp)
1775 {
1776         if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV))
1777                 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
1778 }
1779
1780 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
1781 {
1782         struct pci_dev *dev = bp->pdev;
1783         struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1784
1785         return dev->bus->number + ((dev->devfn + iov->offset +
1786                                     iov->stride * vfid) >> 8);
1787 }
1788
1789 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid)
1790 {
1791         struct pci_dev *dev = bp->pdev;
1792         struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1793
1794         return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff;
1795 }
1796
1797 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf)
1798 {
1799         int i, n;
1800         struct pci_dev *dev = bp->pdev;
1801         struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1802
1803         for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) {
1804                 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i);
1805                 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i);
1806
1807                 size /= iov->total;
1808                 vf->bars[n].bar = start + size * vf->abs_vfid;
1809                 vf->bars[n].size = size;
1810         }
1811 }
1812
1813 static int bnx2x_ari_enabled(struct pci_dev *dev)
1814 {
1815         return dev->bus->self && dev->bus->self->ari_enabled;
1816 }
1817
1818 static void
1819 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
1820 {
1821         int sb_id;
1822         u32 val;
1823         u8 fid, current_pf = 0;
1824
1825         /* IGU in normal mode - read CAM */
1826         for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) {
1827                 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4);
1828                 if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
1829                         continue;
1830                 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
1831                 if (fid & IGU_FID_ENCODE_IS_PF)
1832                         current_pf = fid & IGU_FID_PF_NUM_MASK;
1833                 else if (current_pf == BP_FUNC(bp))
1834                         bnx2x_vf_set_igu_info(bp, sb_id,
1835                                               (fid & IGU_FID_VF_NUM_MASK));
1836                 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
1837                    ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"),
1838                    ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) :
1839                    (fid & IGU_FID_VF_NUM_MASK)), sb_id,
1840                    GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR));
1841         }
1842         DP(BNX2X_MSG_IOV, "vf_sbs_pool is %d\n", BP_VFDB(bp)->vf_sbs_pool);
1843 }
1844
1845 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp)
1846 {
1847         if (bp->vfdb) {
1848                 kfree(bp->vfdb->vfqs);
1849                 kfree(bp->vfdb->vfs);
1850                 kfree(bp->vfdb);
1851         }
1852         bp->vfdb = NULL;
1853 }
1854
1855 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1856 {
1857         int pos;
1858         struct pci_dev *dev = bp->pdev;
1859
1860         pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
1861         if (!pos) {
1862                 BNX2X_ERR("failed to find SRIOV capability in device\n");
1863                 return -ENODEV;
1864         }
1865
1866         iov->pos = pos;
1867         DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos);
1868         pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
1869         pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total);
1870         pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial);
1871         pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
1872         pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
1873         pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
1874         pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
1875         pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
1876
1877         return 0;
1878 }
1879
1880 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1881 {
1882         u32 val;
1883
1884         /* read the SRIOV capability structure
1885          * The fields can be read via configuration read or
1886          * directly from the device (starting at offset PCICFG_OFFSET)
1887          */
1888         if (bnx2x_sriov_pci_cfg_info(bp, iov))
1889                 return -ENODEV;
1890
1891         /* get the number of SRIOV bars */
1892         iov->nres = 0;
1893
1894         /* read the first_vfid */
1895         val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF);
1896         iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK)
1897                                * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp));
1898
1899         DP(BNX2X_MSG_IOV,
1900            "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",
1901            BP_FUNC(bp),
1902            iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total,
1903            iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
1904
1905         return 0;
1906 }
1907
1908 /* must be called after PF bars are mapped */
1909 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
1910                        int num_vfs_param)
1911 {
1912         int err, i;
1913         struct bnx2x_sriov *iov;
1914         struct pci_dev *dev = bp->pdev;
1915
1916         bp->vfdb = NULL;
1917
1918         /* verify is pf */
1919         if (IS_VF(bp))
1920                 return 0;
1921
1922         /* verify sriov capability is present in configuration space */
1923         if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV))
1924                 return 0;
1925
1926         /* verify chip revision */
1927         if (CHIP_IS_E1x(bp))
1928                 return 0;
1929
1930         /* check if SRIOV support is turned off */
1931         if (!num_vfs_param)
1932                 return 0;
1933
1934         /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */
1935         if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) {
1936                 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n",
1937                           BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID);
1938                 return 0;
1939         }
1940
1941         /* SRIOV can be enabled only with MSIX */
1942         if (int_mode_param == BNX2X_INT_MODE_MSI ||
1943             int_mode_param == BNX2X_INT_MODE_INTX) {
1944                 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n");
1945                 return 0;
1946         }
1947
1948         err = -EIO;
1949         /* verify ari is enabled */
1950         if (!bnx2x_ari_enabled(bp->pdev)) {
1951                 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n");
1952                 return 0;
1953         }
1954
1955         /* verify igu is in normal mode */
1956         if (CHIP_INT_MODE_IS_BC(bp)) {
1957                 BNX2X_ERR("IGU not normal mode,  SRIOV can not be enabled\n");
1958                 return 0;
1959         }
1960
1961         /* allocate the vfs database */
1962         bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL);
1963         if (!bp->vfdb) {
1964                 BNX2X_ERR("failed to allocate vf database\n");
1965                 err = -ENOMEM;
1966                 goto failed;
1967         }
1968
1969         /* get the sriov info - Linux already collected all the pertinent
1970          * information, however the sriov structure is for the private use
1971          * of the pci module. Also we want this information regardless
1972          * of the hyper-visor.
1973          */
1974         iov = &(bp->vfdb->sriov);
1975         err = bnx2x_sriov_info(bp, iov);
1976         if (err)
1977                 goto failed;
1978
1979         /* SR-IOV capability was enabled but there are no VFs*/
1980         if (iov->total == 0)
1981                 goto failed;
1982
1983         iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param);
1984
1985         DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n",
1986            num_vfs_param, iov->nr_virtfn);
1987
1988         /* allocate the vf array */
1989         bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) *
1990                                 BNX2X_NR_VIRTFN(bp), GFP_KERNEL);
1991         if (!bp->vfdb->vfs) {
1992                 BNX2X_ERR("failed to allocate vf array\n");
1993                 err = -ENOMEM;
1994                 goto failed;
1995         }
1996
1997         /* Initial VF init - index and abs_vfid - nr_virtfn must be set */
1998         for_each_vf(bp, i) {
1999                 bnx2x_vf(bp, i, index) = i;
2000                 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i;
2001                 bnx2x_vf(bp, i, state) = VF_FREE;
2002                 INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head));
2003                 mutex_init(&bnx2x_vf(bp, i, op_mutex));
2004                 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE;
2005         }
2006
2007         /* re-read the IGU CAM for VFs - index and abs_vfid must be set */
2008         bnx2x_get_vf_igu_cam_info(bp);
2009
2010         /* allocate the queue arrays for all VFs */
2011         bp->vfdb->vfqs = kzalloc(
2012                 BNX2X_MAX_NUM_VF_QUEUES * sizeof(struct bnx2x_vf_queue),
2013                 GFP_KERNEL);
2014
2015         DP(BNX2X_MSG_IOV, "bp->vfdb->vfqs was %p\n", bp->vfdb->vfqs);
2016
2017         if (!bp->vfdb->vfqs) {
2018                 BNX2X_ERR("failed to allocate vf queue array\n");
2019                 err = -ENOMEM;
2020                 goto failed;
2021         }
2022
2023         return 0;
2024 failed:
2025         DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
2026         __bnx2x_iov_free_vfdb(bp);
2027         return err;
2028 }
2029
2030 void bnx2x_iov_remove_one(struct bnx2x *bp)
2031 {
2032         int vf_idx;
2033
2034         /* if SRIOV is not enabled there's nothing to do */
2035         if (!IS_SRIOV(bp))
2036                 return;
2037
2038         DP(BNX2X_MSG_IOV, "about to call disable sriov\n");
2039         pci_disable_sriov(bp->pdev);
2040         DP(BNX2X_MSG_IOV, "sriov disabled\n");
2041
2042         /* disable access to all VFs */
2043         for (vf_idx = 0; vf_idx < bp->vfdb->sriov.total; vf_idx++) {
2044                 bnx2x_pretend_func(bp,
2045                                    HW_VF_HANDLE(bp,
2046                                                 bp->vfdb->sriov.first_vf_in_pf +
2047                                                 vf_idx));
2048                 DP(BNX2X_MSG_IOV, "disabling internal access for vf %d\n",
2049                    bp->vfdb->sriov.first_vf_in_pf + vf_idx);
2050                 bnx2x_vf_enable_internal(bp, 0);
2051                 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
2052         }
2053
2054         /* free vf database */
2055         __bnx2x_iov_free_vfdb(bp);
2056 }
2057
2058 void bnx2x_iov_free_mem(struct bnx2x *bp)
2059 {
2060         int i;
2061
2062         if (!IS_SRIOV(bp))
2063                 return;
2064
2065         /* free vfs hw contexts */
2066         for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2067                 struct hw_dma *cxt = &bp->vfdb->context[i];
2068                 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size);
2069         }
2070
2071         BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr,
2072                        BP_VFDB(bp)->sp_dma.mapping,
2073                        BP_VFDB(bp)->sp_dma.size);
2074
2075         BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr,
2076                        BP_VF_MBX_DMA(bp)->mapping,
2077                        BP_VF_MBX_DMA(bp)->size);
2078
2079         BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr,
2080                        BP_VF_BULLETIN_DMA(bp)->mapping,
2081                        BP_VF_BULLETIN_DMA(bp)->size);
2082 }
2083
2084 int bnx2x_iov_alloc_mem(struct bnx2x *bp)
2085 {
2086         size_t tot_size;
2087         int i, rc = 0;
2088
2089         if (!IS_SRIOV(bp))
2090                 return rc;
2091
2092         /* allocate vfs hw contexts */
2093         tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) *
2094                 BNX2X_CIDS_PER_VF * sizeof(union cdu_context);
2095
2096         for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2097                 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i);
2098                 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ);
2099
2100                 if (cxt->size) {
2101                         BNX2X_PCI_ALLOC(cxt->addr, &cxt->mapping, cxt->size);
2102                 } else {
2103                         cxt->addr = NULL;
2104                         cxt->mapping = 0;
2105                 }
2106                 tot_size -= cxt->size;
2107         }
2108
2109         /* allocate vfs ramrods dma memory - client_init and set_mac */
2110         tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp);
2111         BNX2X_PCI_ALLOC(BP_VFDB(bp)->sp_dma.addr, &BP_VFDB(bp)->sp_dma.mapping,
2112                         tot_size);
2113         BP_VFDB(bp)->sp_dma.size = tot_size;
2114
2115         /* allocate mailboxes */
2116         tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE;
2117         BNX2X_PCI_ALLOC(BP_VF_MBX_DMA(bp)->addr, &BP_VF_MBX_DMA(bp)->mapping,
2118                         tot_size);
2119         BP_VF_MBX_DMA(bp)->size = tot_size;
2120
2121         /* allocate local bulletin boards */
2122         tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE;
2123         BNX2X_PCI_ALLOC(BP_VF_BULLETIN_DMA(bp)->addr,
2124                         &BP_VF_BULLETIN_DMA(bp)->mapping, tot_size);
2125         BP_VF_BULLETIN_DMA(bp)->size = tot_size;
2126
2127         return 0;
2128
2129 alloc_mem_err:
2130         return -ENOMEM;
2131 }
2132
2133 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
2134                            struct bnx2x_vf_queue *q)
2135 {
2136         u8 cl_id = vfq_cl_id(vf, q);
2137         u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
2138         unsigned long q_type = 0;
2139
2140         set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
2141         set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
2142
2143         /* Queue State object */
2144         bnx2x_init_queue_obj(bp, &q->sp_obj,
2145                              cl_id, &q->cid, 1, func_id,
2146                              bnx2x_vf_sp(bp, vf, q_data),
2147                              bnx2x_vf_sp_map(bp, vf, q_data),
2148                              q_type);
2149
2150         DP(BNX2X_MSG_IOV,
2151            "initialized vf %d's queue object. func id set to %d. cid set to 0x%x\n",
2152            vf->abs_vfid, q->sp_obj.func_id, q->cid);
2153 }
2154
2155 /* called by bnx2x_nic_load */
2156 int bnx2x_iov_nic_init(struct bnx2x *bp)
2157 {
2158         int vfid;
2159
2160         if (!IS_SRIOV(bp)) {
2161                 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n");
2162                 return 0;
2163         }
2164
2165         DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn);
2166
2167         /* let FLR complete ... */
2168         msleep(100);
2169
2170         /* initialize vf database */
2171         for_each_vf(bp, vfid) {
2172                 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2173
2174                 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) *
2175                         BNX2X_CIDS_PER_VF;
2176
2177                 union cdu_context *base_cxt = (union cdu_context *)
2178                         BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2179                         (base_vf_cid & (ILT_PAGE_CIDS-1));
2180
2181                 DP(BNX2X_MSG_IOV,
2182                    "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n",
2183                    vf->abs_vfid, vf_sb_count(vf), base_vf_cid,
2184                    BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt);
2185
2186                 /* init statically provisioned resources */
2187                 bnx2x_iov_static_resc(bp, vf);
2188
2189                 /* queues are initialized during VF-ACQUIRE */
2190
2191                 /* reserve the vf vlan credit */
2192                 bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf));
2193
2194                 vf->filter_state = 0;
2195                 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id);
2196
2197                 /*  init mcast object - This object will be re-initialized
2198                  *  during VF-ACQUIRE with the proper cl_id and cid.
2199                  *  It needs to be initialized here so that it can be safely
2200                  *  handled by a subsequent FLR flow.
2201                  */
2202                 vf->mcast_list_len = 0;
2203                 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF,
2204                                      0xFF, 0xFF, 0xFF,
2205                                      bnx2x_vf_sp(bp, vf, mcast_rdata),
2206                                      bnx2x_vf_sp_map(bp, vf, mcast_rdata),
2207                                      BNX2X_FILTER_MCAST_PENDING,
2208                                      &vf->filter_state,
2209                                      BNX2X_OBJ_TYPE_RX_TX);
2210
2211                 /* set the mailbox message addresses */
2212                 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *)
2213                         (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid *
2214                         MBX_MSG_ALIGNED_SIZE);
2215
2216                 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping +
2217                         vfid * MBX_MSG_ALIGNED_SIZE;
2218
2219                 /* Enable vf mailbox */
2220                 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
2221         }
2222
2223         /* Final VF init */
2224         for_each_vf(bp, vfid) {
2225                 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2226
2227                 /* fill in the BDF and bars */
2228                 vf->bus = bnx2x_vf_bus(bp, vfid);
2229                 vf->devfn = bnx2x_vf_devfn(bp, vfid);
2230                 bnx2x_vf_set_bars(bp, vf);
2231
2232                 DP(BNX2X_MSG_IOV,
2233                    "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n",
2234                    vf->abs_vfid, vf->bus, vf->devfn,
2235                    (unsigned)vf->bars[0].bar, vf->bars[0].size,
2236                    (unsigned)vf->bars[1].bar, vf->bars[1].size,
2237                    (unsigned)vf->bars[2].bar, vf->bars[2].size);
2238         }
2239
2240         return 0;
2241 }
2242
2243 /* called by bnx2x_chip_cleanup */
2244 int bnx2x_iov_chip_cleanup(struct bnx2x *bp)
2245 {
2246         int i;
2247
2248         if (!IS_SRIOV(bp))
2249                 return 0;
2250
2251         /* release all the VFs */
2252         for_each_vf(bp, i)
2253                 bnx2x_vf_release(bp, BP_VF(bp, i), true); /* blocking */
2254
2255         return 0;
2256 }
2257
2258 /* called by bnx2x_init_hw_func, returns the next ilt line */
2259 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line)
2260 {
2261         int i;
2262         struct bnx2x_ilt *ilt = BP_ILT(bp);
2263
2264         if (!IS_SRIOV(bp))
2265                 return line;
2266
2267         /* set vfs ilt lines */
2268         for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2269                 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i);
2270
2271                 ilt->lines[line+i].page = hw_cxt->addr;
2272                 ilt->lines[line+i].page_mapping = hw_cxt->mapping;
2273                 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */
2274         }
2275         return line + i;
2276 }
2277
2278 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid)
2279 {
2280         return ((cid >= BNX2X_FIRST_VF_CID) &&
2281                 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS));
2282 }
2283
2284 static
2285 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp,
2286                                         struct bnx2x_vf_queue *vfq,
2287                                         union event_ring_elem *elem)
2288 {
2289         unsigned long ramrod_flags = 0;
2290         int rc = 0;
2291
2292         /* Always push next commands out, don't wait here */
2293         set_bit(RAMROD_CONT, &ramrod_flags);
2294
2295         switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) {
2296         case BNX2X_FILTER_MAC_PENDING:
2297                 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem,
2298                                            &ramrod_flags);
2299                 break;
2300         case BNX2X_FILTER_VLAN_PENDING:
2301                 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem,
2302                                             &ramrod_flags);
2303                 break;
2304         default:
2305                 BNX2X_ERR("Unsupported classification command: %d\n",
2306                           elem->message.data.eth_event.echo);
2307                 return;
2308         }
2309         if (rc < 0)
2310                 BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
2311         else if (rc > 0)
2312                 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n");
2313 }
2314
2315 static
2316 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp,
2317                                struct bnx2x_virtf *vf)
2318 {
2319         struct bnx2x_mcast_ramrod_params rparam = {NULL};
2320         int rc;
2321
2322         rparam.mcast_obj = &vf->mcast_obj;
2323         vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw);
2324
2325         /* If there are pending mcast commands - send them */
2326         if (vf->mcast_obj.check_pending(&vf->mcast_obj)) {
2327                 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
2328                 if (rc < 0)
2329                         BNX2X_ERR("Failed to send pending mcast commands: %d\n",
2330                                   rc);
2331         }
2332 }
2333
2334 static
2335 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp,
2336                                  struct bnx2x_virtf *vf)
2337 {
2338         smp_mb__before_clear_bit();
2339         clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
2340         smp_mb__after_clear_bit();
2341 }
2342
2343 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
2344 {
2345         struct bnx2x_virtf *vf;
2346         int qidx = 0, abs_vfid;
2347         u8 opcode;
2348         u16 cid = 0xffff;
2349
2350         if (!IS_SRIOV(bp))
2351                 return 1;
2352
2353         /* first get the cid - the only events we handle here are cfc-delete
2354          * and set-mac completion
2355          */
2356         opcode = elem->message.opcode;
2357
2358         switch (opcode) {
2359         case EVENT_RING_OPCODE_CFC_DEL:
2360                 cid = SW_CID((__force __le32)
2361                              elem->message.data.cfc_del_event.cid);
2362                 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid);
2363                 break;
2364         case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2365         case EVENT_RING_OPCODE_MULTICAST_RULES:
2366         case EVENT_RING_OPCODE_FILTERS_RULES:
2367                 cid = (elem->message.data.eth_event.echo &
2368                        BNX2X_SWCID_MASK);
2369                 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid);
2370                 break;
2371         case EVENT_RING_OPCODE_VF_FLR:
2372                 abs_vfid = elem->message.data.vf_flr_event.vf_id;
2373                 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n",
2374                    abs_vfid);
2375                 goto get_vf;
2376         case EVENT_RING_OPCODE_MALICIOUS_VF:
2377                 abs_vfid = elem->message.data.malicious_vf_event.vf_id;
2378                 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
2379                    abs_vfid, elem->message.data.malicious_vf_event.err_id);
2380                 goto get_vf;
2381         default:
2382                 return 1;
2383         }
2384
2385         /* check if the cid is the VF range */
2386         if (!bnx2x_iov_is_vf_cid(bp, cid)) {
2387                 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid);
2388                 return 1;
2389         }
2390
2391         /* extract vf and rxq index from vf_cid - relies on the following:
2392          * 1. vfid on cid reflects the true abs_vfid
2393          * 2. The max number of VFs (per path) is 64
2394          */
2395         qidx = cid & ((1 << BNX2X_VF_CID_WND)-1);
2396         abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2397 get_vf:
2398         vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
2399
2400         if (!vf) {
2401                 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n",
2402                           cid, abs_vfid);
2403                 return 0;
2404         }
2405
2406         switch (opcode) {
2407         case EVENT_RING_OPCODE_CFC_DEL:
2408                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n",
2409                    vf->abs_vfid, qidx);
2410                 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp,
2411                                                        &vfq_get(vf,
2412                                                                 qidx)->sp_obj,
2413                                                        BNX2X_Q_CMD_CFC_DEL);
2414                 break;
2415         case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2416                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n",
2417                    vf->abs_vfid, qidx);
2418                 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem);
2419                 break;
2420         case EVENT_RING_OPCODE_MULTICAST_RULES:
2421                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n",
2422                    vf->abs_vfid, qidx);
2423                 bnx2x_vf_handle_mcast_eqe(bp, vf);
2424                 break;
2425         case EVENT_RING_OPCODE_FILTERS_RULES:
2426                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n",
2427                    vf->abs_vfid, qidx);
2428                 bnx2x_vf_handle_filters_eqe(bp, vf);
2429                 break;
2430         case EVENT_RING_OPCODE_VF_FLR:
2431                 DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n",
2432                    vf->abs_vfid);
2433                 /* Do nothing for now */
2434                 break;
2435         case EVENT_RING_OPCODE_MALICIOUS_VF:
2436                 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d error id %x\n",
2437                    abs_vfid, elem->message.data.malicious_vf_event.err_id);
2438                 /* Do nothing for now */
2439                 break;
2440         }
2441         /* SRIOV: reschedule any 'in_progress' operations */
2442         bnx2x_iov_sp_event(bp, cid, false);
2443
2444         return 0;
2445 }
2446
2447 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid)
2448 {
2449         /* extract the vf from vf_cid - relies on the following:
2450          * 1. vfid on cid reflects the true abs_vfid
2451          * 2. The max number of VFs (per path) is 64
2452          */
2453         int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2454         return bnx2x_vf_by_abs_fid(bp, abs_vfid);
2455 }
2456
2457 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
2458                                 struct bnx2x_queue_sp_obj **q_obj)
2459 {
2460         struct bnx2x_virtf *vf;
2461
2462         if (!IS_SRIOV(bp))
2463                 return;
2464
2465         vf = bnx2x_vf_by_cid(bp, vf_cid);
2466
2467         if (vf) {
2468                 /* extract queue index from vf_cid - relies on the following:
2469                  * 1. vfid on cid reflects the true abs_vfid
2470                  * 2. The max number of VFs (per path) is 64
2471                  */
2472                 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1);
2473                 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj);
2474         } else {
2475                 BNX2X_ERR("No vf matching cid %d\n", vf_cid);
2476         }
2477 }
2478
2479 void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work)
2480 {
2481         struct bnx2x_virtf *vf;
2482
2483         /* check if the cid is the VF range */
2484         if (!IS_SRIOV(bp) || !bnx2x_iov_is_vf_cid(bp, vf_cid))
2485                 return;
2486
2487         vf = bnx2x_vf_by_cid(bp, vf_cid);
2488         if (vf) {
2489                 /* set in_progress flag */
2490                 atomic_set(&vf->op_in_progress, 1);
2491                 if (queue_work)
2492                         queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
2493         }
2494 }
2495
2496 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp)
2497 {
2498         int i;
2499         int first_queue_query_index, num_queues_req;
2500         dma_addr_t cur_data_offset;
2501         struct stats_query_entry *cur_query_entry;
2502         u8 stats_count = 0;
2503         bool is_fcoe = false;
2504
2505         if (!IS_SRIOV(bp))
2506                 return;
2507
2508         if (!NO_FCOE(bp))
2509                 is_fcoe = true;
2510
2511         /* fcoe adds one global request and one queue request */
2512         num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe;
2513         first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX -
2514                 (is_fcoe ? 0 : 1);
2515
2516         DP(BNX2X_MSG_IOV,
2517            "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",
2518            BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index,
2519            first_queue_query_index + num_queues_req);
2520
2521         cur_data_offset = bp->fw_stats_data_mapping +
2522                 offsetof(struct bnx2x_fw_stats_data, queue_stats) +
2523                 num_queues_req * sizeof(struct per_queue_stats);
2524
2525         cur_query_entry = &bp->fw_stats_req->
2526                 query[first_queue_query_index + num_queues_req];
2527
2528         for_each_vf(bp, i) {
2529                 int j;
2530                 struct bnx2x_virtf *vf = BP_VF(bp, i);
2531
2532                 if (vf->state != VF_ENABLED) {
2533                         DP(BNX2X_MSG_IOV,
2534                            "vf %d not enabled so no stats for it\n",
2535                            vf->abs_vfid);
2536                         continue;
2537                 }
2538
2539                 DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid);
2540                 for_each_vfq(vf, j) {
2541                         struct bnx2x_vf_queue *rxq = vfq_get(vf, j);
2542
2543                         dma_addr_t q_stats_addr =
2544                                 vf->fw_stat_map + j * vf->stats_stride;
2545
2546                         /* collect stats fro active queues only */
2547                         if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) ==
2548                             BNX2X_Q_LOGICAL_STATE_STOPPED)
2549                                 continue;
2550
2551                         /* create stats query entry for this queue */
2552                         cur_query_entry->kind = STATS_TYPE_QUEUE;
2553                         cur_query_entry->index = vfq_stat_id(vf, rxq);
2554                         cur_query_entry->funcID =
2555                                 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid));
2556                         cur_query_entry->address.hi =
2557                                 cpu_to_le32(U64_HI(q_stats_addr));
2558                         cur_query_entry->address.lo =
2559                                 cpu_to_le32(U64_LO(q_stats_addr));
2560                         DP(BNX2X_MSG_IOV,
2561                            "added address %x %x for vf %d queue %d client %d\n",
2562                            cur_query_entry->address.hi,
2563                            cur_query_entry->address.lo, cur_query_entry->funcID,
2564                            j, cur_query_entry->index);
2565                         cur_query_entry++;
2566                         cur_data_offset += sizeof(struct per_queue_stats);
2567                         stats_count++;
2568
2569                         /* all stats are coalesced to the leading queue */
2570                         if (vf->cfg_flags & VF_CFG_STATS_COALESCE)
2571                                 break;
2572                 }
2573         }
2574         bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count;
2575 }
2576
2577 void bnx2x_iov_sp_task(struct bnx2x *bp)
2578 {
2579         int i;
2580
2581         if (!IS_SRIOV(bp))
2582                 return;
2583         /* Iterate over all VFs and invoke state transition for VFs with
2584          * 'in-progress' slow-path operations
2585          */
2586         DP(BNX2X_MSG_IOV, "searching for pending vf operations\n");
2587         for_each_vf(bp, i) {
2588                 struct bnx2x_virtf *vf = BP_VF(bp, i);
2589
2590                 if (!vf) {
2591                         BNX2X_ERR("VF was null! skipping...\n");
2592                         continue;
2593                 }
2594
2595                 if (!list_empty(&vf->op_list_head) &&
2596                     atomic_read(&vf->op_in_progress)) {
2597                         DP(BNX2X_MSG_IOV, "running pending op for vf %d\n", i);
2598                         bnx2x_vfop_cur(bp, vf)->transition(bp, vf);
2599                 }
2600         }
2601 }
2602
2603 static inline
2604 struct bnx2x_virtf *__vf_from_stat_id(struct bnx2x *bp, u8 stat_id)
2605 {
2606         int i;
2607         struct bnx2x_virtf *vf = NULL;
2608
2609         for_each_vf(bp, i) {
2610                 vf = BP_VF(bp, i);
2611                 if (stat_id >= vf->igu_base_id &&
2612                     stat_id < vf->igu_base_id + vf_sb_count(vf))
2613                         break;
2614         }
2615         return vf;
2616 }
2617
2618 /* VF API helpers */
2619 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid,
2620                                 u8 enable)
2621 {
2622         u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4;
2623         u32 val = enable ? (abs_vfid | (1 << 6)) : 0;
2624
2625         REG_WR(bp, reg, val);
2626 }
2627
2628 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf)
2629 {
2630         int i;
2631
2632         for_each_vfq(vf, i)
2633                 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2634                                     vfq_qzone_id(vf, vfq_get(vf, i)), false);
2635 }
2636
2637 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf)
2638 {
2639         u32 val;
2640
2641         /* clear the VF configuration - pretend */
2642         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
2643         val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
2644         val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN |
2645                  IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK);
2646         REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
2647         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
2648 }
2649
2650 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf)
2651 {
2652         return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF),
2653                      BNX2X_VF_MAX_QUEUES);
2654 }
2655
2656 static
2657 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf,
2658                             struct vf_pf_resc_request *req_resc)
2659 {
2660         u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2661         u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2662
2663         return ((req_resc->num_rxqs <= rxq_cnt) &&
2664                 (req_resc->num_txqs <= txq_cnt) &&
2665                 (req_resc->num_sbs <= vf_sb_count(vf))   &&
2666                 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) &&
2667                 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf)));
2668 }
2669
2670 /* CORE VF API */
2671 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
2672                      struct vf_pf_resc_request *resc)
2673 {
2674         int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) *
2675                 BNX2X_CIDS_PER_VF;
2676
2677         union cdu_context *base_cxt = (union cdu_context *)
2678                 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2679                 (base_vf_cid & (ILT_PAGE_CIDS-1));
2680         int i;
2681
2682         /* if state is 'acquired' the VF was not released or FLR'd, in
2683          * this case the returned resources match the acquired already
2684          * acquired resources. Verify that the requested numbers do
2685          * not exceed the already acquired numbers.
2686          */
2687         if (vf->state == VF_ACQUIRED) {
2688                 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n",
2689                    vf->abs_vfid);
2690
2691                 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2692                         BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n",
2693                                   vf->abs_vfid);
2694                         return -EINVAL;
2695                 }
2696                 return 0;
2697         }
2698
2699         /* Otherwise vf state must be 'free' or 'reset' */
2700         if (vf->state != VF_FREE && vf->state != VF_RESET) {
2701                 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n",
2702                           vf->abs_vfid, vf->state);
2703                 return -EINVAL;
2704         }
2705
2706         /* static allocation:
2707          * the global maximum number are fixed per VF. Fail the request if
2708          * requested number exceed these globals
2709          */
2710         if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2711                 DP(BNX2X_MSG_IOV,
2712                    "cannot fulfill vf resource request. Placing maximal available values in response\n");
2713                 /* set the max resource in the vf */
2714                 return -ENOMEM;
2715         }
2716
2717         /* Set resources counters - 0 request means max available */
2718         vf_sb_count(vf) = resc->num_sbs;
2719         vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2720         vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2721         if (resc->num_mac_filters)
2722                 vf_mac_rules_cnt(vf) = resc->num_mac_filters;
2723         if (resc->num_vlan_filters)
2724                 vf_vlan_rules_cnt(vf) = resc->num_vlan_filters;
2725
2726         DP(BNX2X_MSG_IOV,
2727            "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n",
2728            vf_sb_count(vf), vf_rxq_count(vf),
2729            vf_txq_count(vf), vf_mac_rules_cnt(vf),
2730            vf_vlan_rules_cnt(vf));
2731
2732         /* Initialize the queues */
2733         if (!vf->vfqs) {
2734                 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n");
2735                 return -EINVAL;
2736         }
2737
2738         for_each_vfq(vf, i) {
2739                 struct bnx2x_vf_queue *q = vfq_get(vf, i);
2740
2741                 if (!q) {
2742                         BNX2X_ERR("q number %d was not allocated\n", i);
2743                         return -EINVAL;
2744                 }
2745
2746                 q->index = i;
2747                 q->cxt = &((base_cxt + i)->eth);
2748                 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i;
2749
2750                 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n",
2751                    vf->abs_vfid, i, q->index, q->cid, q->cxt);
2752
2753                 /* init SP objects */
2754                 bnx2x_vfq_init(bp, vf, q);
2755         }
2756         vf->state = VF_ACQUIRED;
2757         return 0;
2758 }
2759
2760 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map)
2761 {
2762         struct bnx2x_func_init_params func_init = {0};
2763         u16 flags = 0;
2764         int i;
2765
2766         /* the sb resources are initialized at this point, do the
2767          * FW/HW initializations
2768          */
2769         for_each_vf_sb(vf, i)
2770                 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true,
2771                               vf_igu_sb(vf, i), vf_igu_sb(vf, i));
2772
2773         /* Sanity checks */
2774         if (vf->state != VF_ACQUIRED) {
2775                 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n",
2776                    vf->abs_vfid, vf->state);
2777                 return -EINVAL;
2778         }
2779
2780         /* let FLR complete ... */
2781         msleep(100);
2782
2783         /* FLR cleanup epilogue */
2784         if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid))
2785                 return -EBUSY;
2786
2787         /* reset IGU VF statistics: MSIX */
2788         REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0);
2789
2790         /* vf init */
2791         if (vf->cfg_flags & VF_CFG_STATS)
2792                 flags |= (FUNC_FLG_STATS | FUNC_FLG_SPQ);
2793
2794         if (vf->cfg_flags & VF_CFG_TPA)
2795                 flags |= FUNC_FLG_TPA;
2796
2797         if (is_vf_multi(vf))
2798                 flags |= FUNC_FLG_RSS;
2799
2800         /* function setup */
2801         func_init.func_flgs = flags;
2802         func_init.pf_id = BP_FUNC(bp);
2803         func_init.func_id = FW_VF_HANDLE(vf->abs_vfid);
2804         func_init.fw_stat_map = vf->fw_stat_map;
2805         func_init.spq_map = vf->spq_map;
2806         func_init.spq_prod = 0;
2807         bnx2x_func_init(bp, &func_init);
2808
2809         /* Enable the vf */
2810         bnx2x_vf_enable_access(bp, vf->abs_vfid);
2811         bnx2x_vf_enable_traffic(bp, vf);
2812
2813         /* queue protection table */
2814         for_each_vfq(vf, i)
2815                 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2816                                     vfq_qzone_id(vf, vfq_get(vf, i)), true);
2817
2818         vf->state = VF_ENABLED;
2819
2820         /* update vf bulletin board */
2821         bnx2x_post_vf_bulletin(bp, vf->index);
2822
2823         return 0;
2824 }
2825
2826 struct set_vf_state_cookie {
2827         struct bnx2x_virtf *vf;
2828         u8 state;
2829 };
2830
2831 static void bnx2x_set_vf_state(void *cookie)
2832 {
2833         struct set_vf_state_cookie *p = (struct set_vf_state_cookie *)cookie;
2834
2835         p->vf->state = p->state;
2836 }
2837
2838 /* VFOP close (teardown the queues, delete mcasts and close HW) */
2839 static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
2840 {
2841         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2842         struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
2843         enum bnx2x_vfop_close_state state = vfop->state;
2844         struct bnx2x_vfop_cmd cmd = {
2845                 .done = bnx2x_vfop_close,
2846                 .block = false,
2847         };
2848
2849         if (vfop->rc < 0)
2850                 goto op_err;
2851
2852         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2853
2854         switch (state) {
2855         case BNX2X_VFOP_CLOSE_QUEUES:
2856
2857                 if (++(qx->qid) < vf_rxq_count(vf)) {
2858                         vfop->rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qx->qid);
2859                         if (vfop->rc)
2860                                 goto op_err;
2861                         return;
2862                 }
2863                 vfop->state = BNX2X_VFOP_CLOSE_HW;
2864                 vfop->rc = 0;
2865                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
2866
2867         case BNX2X_VFOP_CLOSE_HW:
2868
2869                 /* disable the interrupts */
2870                 DP(BNX2X_MSG_IOV, "disabling igu\n");
2871                 bnx2x_vf_igu_disable(bp, vf);
2872
2873                 /* disable the VF */
2874                 DP(BNX2X_MSG_IOV, "clearing qtbl\n");
2875                 bnx2x_vf_clr_qtbl(bp, vf);
2876
2877                 goto op_done;
2878         default:
2879                 bnx2x_vfop_default(state);
2880         }
2881 op_err:
2882         BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc);
2883 op_done:
2884
2885         /* need to make sure there are no outstanding stats ramrods which may
2886          * cause the device to access the VF's stats buffer which it will free
2887          * as soon as we return from the close flow.
2888          */
2889         {
2890                 struct set_vf_state_cookie cookie;
2891
2892                 cookie.vf = vf;
2893                 cookie.state = VF_ACQUIRED;
2894                 bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie);
2895         }
2896
2897         DP(BNX2X_MSG_IOV, "set state to acquired\n");
2898         bnx2x_vfop_end(bp, vf, vfop);
2899 op_pending:
2900         /* Not supported at the moment; Exists for macros only */
2901         return;
2902 }
2903
2904 int bnx2x_vfop_close_cmd(struct bnx2x *bp,
2905                          struct bnx2x_virtf *vf,
2906                          struct bnx2x_vfop_cmd *cmd)
2907 {
2908         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2909         if (vfop) {
2910                 vfop->args.qx.qid = -1; /* loop */
2911                 bnx2x_vfop_opset(BNX2X_VFOP_CLOSE_QUEUES,
2912                                  bnx2x_vfop_close, cmd->done);
2913                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_close,
2914                                              cmd->block);
2915         }
2916         return -ENOMEM;
2917 }
2918
2919 /* VF release can be called either: 1. The VF was acquired but
2920  * not enabled 2. the vf was enabled or in the process of being
2921  * enabled
2922  */
2923 static void bnx2x_vfop_release(struct bnx2x *bp, struct bnx2x_virtf *vf)
2924 {
2925         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2926         struct bnx2x_vfop_cmd cmd = {
2927                 .done = bnx2x_vfop_release,
2928                 .block = false,
2929         };
2930
2931         DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2932
2933         if (vfop->rc < 0)
2934                 goto op_err;
2935
2936         DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid,
2937            vf->state == VF_FREE ? "Free" :
2938            vf->state == VF_ACQUIRED ? "Acquired" :
2939            vf->state == VF_ENABLED ? "Enabled" :
2940            vf->state == VF_RESET ? "Reset" :
2941            "Unknown");
2942
2943         switch (vf->state) {
2944         case VF_ENABLED:
2945                 vfop->rc = bnx2x_vfop_close_cmd(bp, vf, &cmd);
2946                 if (vfop->rc)
2947                         goto op_err;
2948                 return;
2949
2950         case VF_ACQUIRED:
2951                 DP(BNX2X_MSG_IOV, "about to free resources\n");
2952                 bnx2x_vf_free_resc(bp, vf);
2953                 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2954                 goto op_done;
2955
2956         case VF_FREE:
2957         case VF_RESET:
2958                 /* do nothing */
2959                 goto op_done;
2960         default:
2961                 bnx2x_vfop_default(vf->state);
2962         }
2963 op_err:
2964         BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, vfop->rc);
2965 op_done:
2966         bnx2x_vfop_end(bp, vf, vfop);
2967 }
2968
2969 static void bnx2x_vfop_rss(struct bnx2x *bp, struct bnx2x_virtf *vf)
2970 {
2971         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2972         enum bnx2x_vfop_rss_state state;
2973
2974         if (!vfop) {
2975                 BNX2X_ERR("vfop was null\n");
2976                 return;
2977         }
2978
2979         state = vfop->state;
2980         bnx2x_vfop_reset_wq(vf);
2981
2982         if (vfop->rc < 0)
2983                 goto op_err;
2984
2985         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2986
2987         switch (state) {
2988         case BNX2X_VFOP_RSS_CONFIG:
2989                 /* next state */
2990                 vfop->state = BNX2X_VFOP_RSS_DONE;
2991                 bnx2x_config_rss(bp, &vfop->op_p->rss);
2992                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
2993 op_err:
2994                 BNX2X_ERR("RSS error: rc %d\n", vfop->rc);
2995 op_done:
2996         case BNX2X_VFOP_RSS_DONE:
2997                 bnx2x_vfop_end(bp, vf, vfop);
2998                 return;
2999         default:
3000                 bnx2x_vfop_default(state);
3001         }
3002 op_pending:
3003         return;
3004 }
3005
3006 int bnx2x_vfop_release_cmd(struct bnx2x *bp,
3007                            struct bnx2x_virtf *vf,
3008                            struct bnx2x_vfop_cmd *cmd)
3009 {
3010         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
3011         if (vfop) {
3012                 bnx2x_vfop_opset(-1, /* use vf->state */
3013                                  bnx2x_vfop_release, cmd->done);
3014                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_release,
3015                                              cmd->block);
3016         }
3017         return -ENOMEM;
3018 }
3019
3020 int bnx2x_vfop_rss_cmd(struct bnx2x *bp,
3021                        struct bnx2x_virtf *vf,
3022                        struct bnx2x_vfop_cmd *cmd)
3023 {
3024         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
3025
3026         if (vfop) {
3027                 bnx2x_vfop_opset(BNX2X_VFOP_RSS_CONFIG, bnx2x_vfop_rss,
3028                                  cmd->done);
3029                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rss,
3030                                              cmd->block);
3031         }
3032         return -ENOMEM;
3033 }
3034
3035 /* VF release ~ VF close + VF release-resources
3036  * Release is the ultimate SW shutdown and is called whenever an
3037  * irrecoverable error is encountered.
3038  */
3039 void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block)
3040 {
3041         struct bnx2x_vfop_cmd cmd = {
3042                 .done = NULL,
3043                 .block = block,
3044         };
3045         int rc;
3046
3047         DP(BNX2X_MSG_IOV, "PF releasing vf %d\n", vf->abs_vfid);
3048         bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
3049
3050         rc = bnx2x_vfop_release_cmd(bp, vf, &cmd);
3051         if (rc)
3052                 WARN(rc,
3053                      "VF[%d] Failed to allocate resources for release op- rc=%d\n",
3054                      vf->abs_vfid, rc);
3055 }
3056
3057 static inline void bnx2x_vf_get_sbdf(struct bnx2x *bp,
3058                               struct bnx2x_virtf *vf, u32 *sbdf)
3059 {
3060         *sbdf = vf->devfn | (vf->bus << 8);
3061 }
3062
3063 static inline void bnx2x_vf_get_bars(struct bnx2x *bp, struct bnx2x_virtf *vf,
3064                        struct bnx2x_vf_bar_info *bar_info)
3065 {
3066         int n;
3067
3068         bar_info->nr_bars = bp->vfdb->sriov.nres;
3069         for (n = 0; n < bar_info->nr_bars; n++)
3070                 bar_info->bars[n] = vf->bars[n];
3071 }
3072
3073 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3074                               enum channel_tlvs tlv)
3075 {
3076         /* we don't lock the channel for unsupported tlvs */
3077         if (!bnx2x_tlv_supported(tlv)) {
3078                 BNX2X_ERR("attempting to lock with unsupported tlv. Aborting\n");
3079                 return;
3080         }
3081
3082         /* lock the channel */
3083         mutex_lock(&vf->op_mutex);
3084
3085         /* record the locking op */
3086         vf->op_current = tlv;
3087
3088         /* log the lock */
3089         DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n",
3090            vf->abs_vfid, tlv);
3091 }
3092
3093 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3094                                 enum channel_tlvs expected_tlv)
3095 {
3096         enum channel_tlvs current_tlv;
3097
3098         if (!vf) {
3099                 BNX2X_ERR("VF was %p\n", vf);
3100                 return;
3101         }
3102
3103         current_tlv = vf->op_current;
3104
3105         /* we don't unlock the channel for unsupported tlvs */
3106         if (!bnx2x_tlv_supported(expected_tlv))
3107                 return;
3108
3109         WARN(expected_tlv != vf->op_current,
3110              "lock mismatch: expected %d found %d", expected_tlv,
3111              vf->op_current);
3112
3113         /* record the locking op */
3114         vf->op_current = CHANNEL_TLV_NONE;
3115
3116         /* lock the channel */
3117         mutex_unlock(&vf->op_mutex);
3118
3119         /* log the unlock */
3120         DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n",
3121            vf->abs_vfid, vf->op_current);
3122 }
3123
3124 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
3125 {
3126         struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
3127
3128         if (!IS_SRIOV(bp)) {
3129                 BNX2X_ERR("failed to configure SR-IOV since vfdb was not allocated. Check dmesg for errors in probe stage\n");
3130                 return -EINVAL;
3131         }
3132
3133         DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
3134            num_vfs_param, BNX2X_NR_VIRTFN(bp));
3135
3136         /* HW channel is only operational when PF is up */
3137         if (bp->state != BNX2X_STATE_OPEN) {
3138                 BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n");
3139                 return -EINVAL;
3140         }
3141
3142         /* we are always bound by the total_vfs in the configuration space */
3143         if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) {
3144                 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n",
3145                           num_vfs_param, BNX2X_NR_VIRTFN(bp));
3146                 num_vfs_param = BNX2X_NR_VIRTFN(bp);
3147         }
3148
3149         bp->requested_nr_virtfn = num_vfs_param;
3150         if (num_vfs_param == 0) {
3151                 pci_disable_sriov(dev);
3152                 return 0;
3153         } else {
3154                 return bnx2x_enable_sriov(bp);
3155         }
3156 }
3157 #define IGU_ENTRY_SIZE 4
3158
3159 int bnx2x_enable_sriov(struct bnx2x *bp)
3160 {
3161         int rc = 0, req_vfs = bp->requested_nr_virtfn;
3162         int vf_idx, sb_idx, vfq_idx, qcount, first_vf;
3163         u32 igu_entry, address;
3164         u16 num_vf_queues;
3165
3166         if (req_vfs == 0)
3167                 return 0;
3168
3169         first_vf = bp->vfdb->sriov.first_vf_in_pf;
3170
3171         /* statically distribute vf sb pool between VFs */
3172         num_vf_queues = min_t(u16, BNX2X_VF_MAX_QUEUES,
3173                               BP_VFDB(bp)->vf_sbs_pool / req_vfs);
3174
3175         /* zero previous values learned from igu cam */
3176         for (vf_idx = 0; vf_idx < req_vfs; vf_idx++) {
3177                 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
3178
3179                 vf->sb_count = 0;
3180                 vf_sb_count(BP_VF(bp, vf_idx)) = 0;
3181         }
3182         bp->vfdb->vf_sbs_pool = 0;
3183
3184         /* prepare IGU cam */
3185         sb_idx = BP_VFDB(bp)->first_vf_igu_entry;
3186         address = IGU_REG_MAPPING_MEMORY + sb_idx * IGU_ENTRY_SIZE;
3187         for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
3188                 for (vfq_idx = 0; vfq_idx < num_vf_queues; vfq_idx++) {
3189                         igu_entry = vf_idx << IGU_REG_MAPPING_MEMORY_FID_SHIFT |
3190                                 vfq_idx << IGU_REG_MAPPING_MEMORY_VECTOR_SHIFT |
3191                                 IGU_REG_MAPPING_MEMORY_VALID;
3192                         DP(BNX2X_MSG_IOV, "assigning sb %d to vf %d\n",
3193                            sb_idx, vf_idx);
3194                         REG_WR(bp, address, igu_entry);
3195                         sb_idx++;
3196                         address += IGU_ENTRY_SIZE;
3197                 }
3198         }
3199
3200         /* Reinitialize vf database according to igu cam */
3201         bnx2x_get_vf_igu_cam_info(bp);
3202
3203         DP(BNX2X_MSG_IOV, "vf_sbs_pool %d, num_vf_queues %d\n",
3204            BP_VFDB(bp)->vf_sbs_pool, num_vf_queues);
3205
3206         qcount = 0;
3207         for_each_vf(bp, vf_idx) {
3208                 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
3209
3210                 /* set local queue arrays */
3211                 vf->vfqs = &bp->vfdb->vfqs[qcount];
3212                 qcount += vf_sb_count(vf);
3213                 bnx2x_iov_static_resc(bp, vf);
3214         }
3215
3216         /* prepare msix vectors in VF configuration space */
3217         for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
3218                 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx));
3219                 REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL,
3220                        num_vf_queues);
3221                 DP(BNX2X_MSG_IOV, "set msix vec num in VF %d cfg space to %d\n",
3222                    vf_idx, num_vf_queues);
3223         }
3224         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
3225
3226         /* enable sriov. This will probe all the VFs, and consequentially cause
3227          * the "acquire" messages to appear on the VF PF channel.
3228          */
3229         DP(BNX2X_MSG_IOV, "about to call enable sriov\n");
3230         bnx2x_disable_sriov(bp);
3231         rc = pci_enable_sriov(bp->pdev, req_vfs);
3232         if (rc) {
3233                 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
3234                 return rc;
3235         }
3236         DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs);
3237         return req_vfs;
3238 }
3239
3240 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp)
3241 {
3242         int vfidx;
3243         struct pf_vf_bulletin_content *bulletin;
3244
3245         DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n");
3246         for_each_vf(bp, vfidx) {
3247         bulletin = BP_VF_BULLETIN(bp, vfidx);
3248                 if (BP_VF(bp, vfidx)->cfg_flags & VF_CFG_VLAN)
3249                         bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0);
3250         }
3251 }
3252
3253 void bnx2x_disable_sriov(struct bnx2x *bp)
3254 {
3255         pci_disable_sriov(bp->pdev);
3256 }
3257
3258 static int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx,
3259                              struct bnx2x_virtf **vf,
3260                              struct pf_vf_bulletin_content **bulletin)
3261 {
3262         if (bp->state != BNX2X_STATE_OPEN) {
3263                 BNX2X_ERR("vf ndo called though PF is down\n");
3264                 return -EINVAL;
3265         }
3266
3267         if (!IS_SRIOV(bp)) {
3268                 BNX2X_ERR("vf ndo called though sriov is disabled\n");
3269                 return -EINVAL;
3270         }
3271
3272         if (vfidx >= BNX2X_NR_VIRTFN(bp)) {
3273                 BNX2X_ERR("vf ndo called for uninitialized VF. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
3274                           vfidx, BNX2X_NR_VIRTFN(bp));
3275                 return -EINVAL;
3276         }
3277
3278         /* init members */
3279         *vf = BP_VF(bp, vfidx);
3280         *bulletin = BP_VF_BULLETIN(bp, vfidx);
3281
3282         if (!*vf) {
3283                 BNX2X_ERR("vf ndo called but vf struct is null. vfidx was %d\n",
3284                           vfidx);
3285                 return -EINVAL;
3286         }
3287
3288         if (!(*vf)->vfqs) {
3289                 BNX2X_ERR("vf ndo called but vfqs struct is null. Was ndo invoked before dynamically enabling SR-IOV? vfidx was %d\n",
3290                           vfidx);
3291                 return -EINVAL;
3292         }
3293
3294         if (!*bulletin) {
3295                 BNX2X_ERR("vf ndo called but Bulletin Board struct is null. vfidx was %d\n",
3296                           vfidx);
3297                 return -EINVAL;
3298         }
3299
3300         return 0;
3301 }
3302
3303 int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
3304                         struct ifla_vf_info *ivi)
3305 {
3306         struct bnx2x *bp = netdev_priv(dev);
3307         struct bnx2x_virtf *vf = NULL;
3308         struct pf_vf_bulletin_content *bulletin = NULL;
3309         struct bnx2x_vlan_mac_obj *mac_obj;
3310         struct bnx2x_vlan_mac_obj *vlan_obj;
3311         int rc;
3312
3313         /* sanity and init */
3314         rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3315         if (rc)
3316                 return rc;
3317         mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
3318         vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
3319         if (!mac_obj || !vlan_obj) {
3320                 BNX2X_ERR("VF partially initialized\n");
3321                 return -EINVAL;
3322         }
3323
3324         ivi->vf = vfidx;
3325         ivi->qos = 0;
3326         ivi->tx_rate = 10000; /* always 10G. TBA take from link struct */
3327         ivi->spoofchk = 1; /*always enabled */
3328         if (vf->state == VF_ENABLED) {
3329                 /* mac and vlan are in vlan_mac objects */
3330                 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj)))
3331                         mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac,
3332                                                 0, ETH_ALEN);
3333                 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, vlan_obj)))
3334                         vlan_obj->get_n_elements(bp, vlan_obj, 1,
3335                                                  (u8 *)&ivi->vlan, 0,
3336                                                  VLAN_HLEN);
3337         } else {
3338                 /* mac */
3339                 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
3340                         /* mac configured by ndo so its in bulletin board */
3341                         memcpy(&ivi->mac, bulletin->mac, ETH_ALEN);
3342                 else
3343                         /* function has not been loaded yet. Show mac as 0s */
3344                         memset(&ivi->mac, 0, ETH_ALEN);
3345
3346                 /* vlan */
3347                 if (bulletin->valid_bitmap & (1 << VLAN_VALID))
3348                         /* vlan configured by ndo so its in bulletin board */
3349                         memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN);
3350                 else
3351                         /* function has not been loaded yet. Show vlans as 0s */
3352                         memset(&ivi->vlan, 0, VLAN_HLEN);
3353         }
3354
3355         return 0;
3356 }
3357
3358 /* New mac for VF. Consider these cases:
3359  * 1. VF hasn't been acquired yet - save the mac in local bulletin board and
3360  *    supply at acquire.
3361  * 2. VF has already been acquired but has not yet initialized - store in local
3362  *    bulletin board. mac will be posted on VF bulletin board after VF init. VF
3363  *    will configure this mac when it is ready.
3364  * 3. VF has already initialized but has not yet setup a queue - post the new
3365  *    mac on VF's bulletin board right now. VF will configure this mac when it
3366  *    is ready.
3367  * 4. VF has already set a queue - delete any macs already configured for this
3368  *    queue and manually config the new mac.
3369  * In any event, once this function has been called refuse any attempts by the
3370  * VF to configure any mac for itself except for this mac. In case of a race
3371  * where the VF fails to see the new post on its bulletin board before sending a
3372  * mac configuration request, the PF will simply fail the request and VF can try
3373  * again after consulting its bulletin board.
3374  */
3375 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
3376 {
3377         struct bnx2x *bp = netdev_priv(dev);
3378         int rc, q_logical_state;
3379         struct bnx2x_virtf *vf = NULL;
3380         struct pf_vf_bulletin_content *bulletin = NULL;
3381
3382         /* sanity and init */
3383         rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3384         if (rc)
3385                 return rc;
3386         if (!is_valid_ether_addr(mac)) {
3387                 BNX2X_ERR("mac address invalid\n");
3388                 return -EINVAL;
3389         }
3390
3391         /* update PF's copy of the VF's bulletin. Will no longer accept mac
3392          * configuration requests from vf unless match this mac
3393          */
3394         bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID;
3395         memcpy(bulletin->mac, mac, ETH_ALEN);
3396
3397         /* Post update on VF's bulletin board */
3398         rc = bnx2x_post_vf_bulletin(bp, vfidx);
3399         if (rc) {
3400                 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
3401                 return rc;
3402         }
3403
3404         q_logical_state =
3405                 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj));
3406         if (vf->state == VF_ENABLED &&
3407             q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3408                 /* configure the mac in device on this vf's queue */
3409                 unsigned long ramrod_flags = 0;
3410                 struct bnx2x_vlan_mac_obj *mac_obj =
3411                         &bnx2x_leading_vfq(vf, mac_obj);
3412
3413                 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
3414                 if (rc)
3415                         return rc;
3416
3417                 /* must lock vfpf channel to protect against vf flows */
3418                 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3419
3420                 /* remove existing eth macs */
3421                 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
3422                 if (rc) {
3423                         BNX2X_ERR("failed to delete eth macs\n");
3424                         rc = -EINVAL;
3425                         goto out;
3426                 }
3427
3428                 /* remove existing uc list macs */
3429                 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true);
3430                 if (rc) {
3431                         BNX2X_ERR("failed to delete uc_list macs\n");
3432                         rc = -EINVAL;
3433                         goto out;
3434                 }
3435
3436                 /* configure the new mac to device */
3437                 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3438                 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true,
3439                                   BNX2X_ETH_MAC, &ramrod_flags);
3440
3441 out:
3442                 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3443         }
3444
3445         return 0;
3446 }
3447
3448 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
3449 {
3450         struct bnx2x *bp = netdev_priv(dev);
3451         int rc, q_logical_state;
3452         struct bnx2x_virtf *vf = NULL;
3453         struct pf_vf_bulletin_content *bulletin = NULL;
3454
3455         /* sanity and init */
3456         rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3457         if (rc)
3458                 return rc;
3459
3460         if (vlan > 4095) {
3461                 BNX2X_ERR("illegal vlan value %d\n", vlan);
3462                 return -EINVAL;
3463         }
3464
3465         DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n",
3466            vfidx, vlan, 0);
3467
3468         /* update PF's copy of the VF's bulletin. No point in posting the vlan
3469          * to the VF since it doesn't have anything to do with it. But it useful
3470          * to store it here in case the VF is not up yet and we can only
3471          * configure the vlan later when it does.
3472          */
3473         bulletin->valid_bitmap |= 1 << VLAN_VALID;
3474         bulletin->vlan = vlan;
3475
3476         /* is vf initialized and queue set up? */
3477         q_logical_state =
3478                 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj));
3479         if (vf->state == VF_ENABLED &&
3480             q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3481                 /* configure the vlan in device on this vf's queue */
3482                 unsigned long ramrod_flags = 0;
3483                 unsigned long vlan_mac_flags = 0;
3484                 struct bnx2x_vlan_mac_obj *vlan_obj =
3485                         &bnx2x_leading_vfq(vf, vlan_obj);
3486                 struct bnx2x_vlan_mac_ramrod_params ramrod_param;
3487                 struct bnx2x_queue_state_params q_params = {NULL};
3488                 struct bnx2x_queue_update_params *update_params;
3489
3490                 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
3491                 if (rc)
3492                         return rc;
3493                 memset(&ramrod_param, 0, sizeof(ramrod_param));
3494
3495                 /* must lock vfpf channel to protect against vf flows */
3496                 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3497
3498                 /* remove existing vlans */
3499                 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3500                 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags,
3501                                           &ramrod_flags);
3502                 if (rc) {
3503                         BNX2X_ERR("failed to delete vlans\n");
3504                         rc = -EINVAL;
3505                         goto out;
3506                 }
3507
3508                 /* send queue update ramrod to configure default vlan and silent
3509                  * vlan removal
3510                  */
3511                 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
3512                 q_params.cmd = BNX2X_Q_CMD_UPDATE;
3513                 q_params.q_obj = &bnx2x_leading_vfq(vf, sp_obj);
3514                 update_params = &q_params.params.update;
3515                 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
3516                           &update_params->update_flags);
3517                 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
3518                           &update_params->update_flags);
3519
3520                 if (vlan == 0) {
3521                         /* if vlan is 0 then we want to leave the VF traffic
3522                          * untagged, and leave the incoming traffic untouched
3523                          * (i.e. do not remove any vlan tags).
3524                          */
3525                         __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3526                                     &update_params->update_flags);
3527                         __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3528                                     &update_params->update_flags);
3529                 } else {
3530                         /* configure the new vlan to device */
3531                         __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3532                         ramrod_param.vlan_mac_obj = vlan_obj;
3533                         ramrod_param.ramrod_flags = ramrod_flags;
3534                         ramrod_param.user_req.u.vlan.vlan = vlan;
3535                         ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
3536                         rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
3537                         if (rc) {
3538                                 BNX2X_ERR("failed to configure vlan\n");
3539                                 rc =  -EINVAL;
3540                                 goto out;
3541                         }
3542
3543                         /* configure default vlan to vf queue and set silent
3544                          * vlan removal (the vf remains unaware of this vlan).
3545                          */
3546                         update_params = &q_params.params.update;
3547                         __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3548                                   &update_params->update_flags);
3549                         __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3550                                   &update_params->update_flags);
3551                         update_params->def_vlan = vlan;
3552                 }
3553
3554                 /* Update the Queue state */
3555                 rc = bnx2x_queue_state_change(bp, &q_params);
3556                 if (rc) {
3557                         BNX2X_ERR("Failed to configure default VLAN\n");
3558                         goto out;
3559                 }
3560
3561                 /* clear the flag indicating that this VF needs its vlan
3562                  * (will only be set if the HV configured the Vlan before vf was
3563                  * up and we were called because the VF came up later
3564                  */
3565 out:
3566                 vf->cfg_flags &= ~VF_CFG_VLAN;
3567                 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3568         }
3569         return rc;
3570 }
3571
3572 /* crc is the first field in the bulletin board. Compute the crc over the
3573  * entire bulletin board excluding the crc field itself. Use the length field
3574  * as the Bulletin Board was posted by a PF with possibly a different version
3575  * from the vf which will sample it. Therefore, the length is computed by the
3576  * PF and the used blindly by the VF.
3577  */
3578 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
3579                           struct pf_vf_bulletin_content *bulletin)
3580 {
3581         return crc32(BULLETIN_CRC_SEED,
3582                  ((u8 *)bulletin) + sizeof(bulletin->crc),
3583                  bulletin->length - sizeof(bulletin->crc));
3584 }
3585
3586 /* Check for new posts on the bulletin board */
3587 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
3588 {
3589         struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
3590         int attempts;
3591
3592         /* bulletin board hasn't changed since last sample */
3593         if (bp->old_bulletin.version == bulletin.version)
3594                 return PFVF_BULLETIN_UNCHANGED;
3595
3596         /* validate crc of new bulletin board */
3597         if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) {
3598                 /* sampling structure in mid post may result with corrupted data
3599                  * validate crc to ensure coherency.
3600                  */
3601                 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
3602                         bulletin = bp->pf2vf_bulletin->content;
3603                         if (bulletin.crc == bnx2x_crc_vf_bulletin(bp,
3604                                                                   &bulletin))
3605                                 break;
3606                         BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
3607                                   bulletin.crc,
3608                                   bnx2x_crc_vf_bulletin(bp, &bulletin));
3609                 }
3610                 if (attempts >= BULLETIN_ATTEMPTS) {
3611                         BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
3612                                   attempts);
3613                         return PFVF_BULLETIN_CRC_ERR;
3614                 }
3615         }
3616
3617         /* the mac address in bulletin board is valid and is new */
3618         if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID &&
3619             memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) {
3620                 /* update new mac to net device */
3621                 memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
3622         }
3623
3624         /* the vlan in bulletin board is valid and is new */
3625         if (bulletin.valid_bitmap & 1 << VLAN_VALID)
3626                 memcpy(&bulletin.vlan, &bp->old_bulletin.vlan, VLAN_HLEN);
3627
3628         /* copy new bulletin board to bp */
3629         bp->old_bulletin = bulletin;
3630
3631         return PFVF_BULLETIN_UPDATED;
3632 }
3633
3634 void bnx2x_timer_sriov(struct bnx2x *bp)
3635 {
3636         bnx2x_sample_bulletin(bp);
3637
3638         /* if channel is down we need to self destruct */
3639         if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
3640                 smp_mb__before_clear_bit();
3641                 set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
3642                         &bp->sp_rtnl_state);
3643                 smp_mb__after_clear_bit();
3644                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3645         }
3646 }
3647
3648 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
3649 {
3650         /* vf doorbells are embedded within the regview */
3651         return bp->regview + PXP_VF_ADDR_DB_START;
3652 }
3653
3654 int bnx2x_vf_pci_alloc(struct bnx2x *bp)
3655 {
3656         mutex_init(&bp->vf2pf_mutex);
3657
3658         /* allocate vf2pf mailbox for vf to pf channel */
3659         BNX2X_PCI_ALLOC(bp->vf2pf_mbox, &bp->vf2pf_mbox_mapping,
3660                         sizeof(struct bnx2x_vf_mbx_msg));
3661
3662         /* allocate pf 2 vf bulletin board */
3663         BNX2X_PCI_ALLOC(bp->pf2vf_bulletin, &bp->pf2vf_bulletin_mapping,
3664                         sizeof(union pf_vf_bulletin));
3665
3666         return 0;
3667
3668 alloc_mem_err:
3669         BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
3670                        sizeof(struct bnx2x_vf_mbx_msg));
3671         BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping,
3672                        sizeof(union pf_vf_bulletin));
3673         return -ENOMEM;
3674 }
3675
3676 void bnx2x_iov_channel_down(struct bnx2x *bp)
3677 {
3678         int vf_idx;
3679         struct pf_vf_bulletin_content *bulletin;
3680
3681         if (!IS_SRIOV(bp))
3682                 return;
3683
3684         for_each_vf(bp, vf_idx) {
3685                 /* locate this VFs bulletin board and update the channel down
3686                  * bit
3687                  */
3688                 bulletin = BP_VF_BULLETIN(bp, vf_idx);
3689                 bulletin->valid_bitmap |= 1 << CHANNEL_DOWN;
3690
3691                 /* update vf bulletin board */
3692                 bnx2x_post_vf_bulletin(bp, vf_idx);
3693         }
3694 }