Pileus Git - ~andy/linux/blob - drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c

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