drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c

   1 /* bnx2x_sriov.c: Broadcom Everest network driver.
   2  *
   3  * Copyright 2009-2013 Broadcom Corporation
   4  *
   5  * Unless you and Broadcom execute a separate written software license
   6  * agreement governing use of this software, this software is licensed to you
   7  * under the terms of the GNU General Public License version 2, available
   8  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
   9  *
  10  * Notwithstanding the above, under no circumstances may you combine this
  11  * software in any way with any other Broadcom software provided under a
  12  * license other than the GPL, without Broadcom's express prior written
  13  * consent.
  14  *
  15  * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  16  * Written by: Shmulik Ravid <shmulikr@broadcom.com>
  17  *             Ariel Elior <ariele@broadcom.com>
  18  *
  19  */
  20 #include "bnx2x.h"
  21 #include "bnx2x_init.h"
  22 #include "bnx2x_cmn.h"
  23 #include "bnx2x_sp.h"
  24 #include <linux/crc32.h>
  25 #include <linux/if_vlan.h>
  26
  27 /* General service functions */
  28 static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid,
  29                                          u16 pf_id)
  30 {
  31         REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid),
  32                 pf_id);
  33         REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid),
  34                 pf_id);
  35         REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid),
  36                 pf_id);
  37         REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid),
  38                 pf_id);
  39 }
  40
  41 static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid,
  42                                         u8 enable)
  43 {
  44         REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid),
  45                 enable);
  46         REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid),
  47                 enable);
  48         REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid),
  49                 enable);
  50         REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid),
  51                 enable);
  52 }
  53
  54 int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
  55 {
  56         int idx;
  57
  58         for_each_vf(bp, idx)
  59                 if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid)
  60                         break;
  61         return idx;
  62 }
  63
  64 static
  65 struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
  66 {
  67         u16 idx =  (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid);
  68         return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL;
  69 }
  70
  71 static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf,
  72                                 u8 igu_sb_id, u8 segment, u16 index, u8 op,
  73                                 u8 update)
  74 {
  75         /* acking a VF sb through the PF - use the GRC */
  76         u32 ctl;
  77         u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA;
  78         u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL;
  79         u32 func_encode = vf->abs_vfid;
  80         u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id;
  81         struct igu_regular cmd_data = {0};
  82
  83         cmd_data.sb_id_and_flags =
  84                         ((index << IGU_REGULAR_SB_INDEX_SHIFT) |
  85                          (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
  86                          (update << IGU_REGULAR_BUPDATE_SHIFT) |
  87                          (op << IGU_REGULAR_ENABLE_INT_SHIFT));
  88
  89         ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT         |
  90               func_encode << IGU_CTRL_REG_FID_SHIFT             |
  91               IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT;
  92
  93         DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
  94            cmd_data.sb_id_and_flags, igu_addr_data);
  95         REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags);
  96         mmiowb();
  97         barrier();
  98
  99         DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
 100            ctl, igu_addr_ctl);
 101         REG_WR(bp, igu_addr_ctl, ctl);
 102         mmiowb();
 103         barrier();
 104 }
 105 /* VFOP - VF slow-path operation support */
 106
 107 #define BNX2X_VFOP_FILTER_ADD_CNT_MAX           0x10000
 108
 109 /* VFOP operations states */
 110 enum bnx2x_vfop_qctor_state {
 111            BNX2X_VFOP_QCTOR_INIT,
 112            BNX2X_VFOP_QCTOR_SETUP,
 113            BNX2X_VFOP_QCTOR_INT_EN
 114 };
 115
 116 enum bnx2x_vfop_qdtor_state {
 117            BNX2X_VFOP_QDTOR_HALT,
 118            BNX2X_VFOP_QDTOR_TERMINATE,
 119            BNX2X_VFOP_QDTOR_CFCDEL,
 120            BNX2X_VFOP_QDTOR_DONE
 121 };
 122
 123 enum bnx2x_vfop_vlan_mac_state {
 124            BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
 125            BNX2X_VFOP_VLAN_MAC_CLEAR,
 126            BNX2X_VFOP_VLAN_MAC_CHK_DONE,
 127            BNX2X_VFOP_MAC_CONFIG_LIST,
 128            BNX2X_VFOP_VLAN_CONFIG_LIST,
 129            BNX2X_VFOP_VLAN_CONFIG_LIST_0
 130 };
 131
 132 enum bnx2x_vfop_qsetup_state {
 133            BNX2X_VFOP_QSETUP_CTOR,
 134            BNX2X_VFOP_QSETUP_VLAN0,
 135            BNX2X_VFOP_QSETUP_DONE
 136 };
 137
 138 enum bnx2x_vfop_mcast_state {
 139            BNX2X_VFOP_MCAST_DEL,
 140            BNX2X_VFOP_MCAST_ADD,
 141            BNX2X_VFOP_MCAST_CHK_DONE
 142 };
 143 enum bnx2x_vfop_qflr_state {
 144            BNX2X_VFOP_QFLR_CLR_VLAN,
 145            BNX2X_VFOP_QFLR_CLR_MAC,
 146            BNX2X_VFOP_QFLR_TERMINATE,
 147            BNX2X_VFOP_QFLR_DONE
 148 };
 149
 150 enum bnx2x_vfop_flr_state {
 151            BNX2X_VFOP_FLR_QUEUES,
 152            BNX2X_VFOP_FLR_HW
 153 };
 154
 155 enum bnx2x_vfop_close_state {
 156            BNX2X_VFOP_CLOSE_QUEUES,
 157            BNX2X_VFOP_CLOSE_HW
 158 };
 159
 160 enum bnx2x_vfop_rxmode_state {
 161            BNX2X_VFOP_RXMODE_CONFIG,
 162            BNX2X_VFOP_RXMODE_DONE
 163 };
 164
 165 enum bnx2x_vfop_qteardown_state {
 166            BNX2X_VFOP_QTEARDOWN_RXMODE,
 167            BNX2X_VFOP_QTEARDOWN_CLR_VLAN,
 168            BNX2X_VFOP_QTEARDOWN_CLR_MAC,
 169            BNX2X_VFOP_QTEARDOWN_QDTOR,
 170            BNX2X_VFOP_QTEARDOWN_DONE
 171 };
 172
 173 enum bnx2x_vfop_rss_state {
 174            BNX2X_VFOP_RSS_CONFIG,
 175            BNX2X_VFOP_RSS_DONE
 176 };
 177
 178 #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0)
 179
 180 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
 181                               struct bnx2x_queue_init_params *init_params,
 182                               struct bnx2x_queue_setup_params *setup_params,
 183                               u16 q_idx, u16 sb_idx)
 184 {
 185         DP(BNX2X_MSG_IOV,
 186            "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d",
 187            vf->abs_vfid,
 188            q_idx,
 189            sb_idx,
 190            init_params->tx.sb_cq_index,
 191            init_params->tx.hc_rate,
 192            setup_params->flags,
 193            setup_params->txq_params.traffic_type);
 194 }
 195
 196 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
 197                             struct bnx2x_queue_init_params *init_params,
 198                             struct bnx2x_queue_setup_params *setup_params,
 199                             u16 q_idx, u16 sb_idx)
 200 {
 201         struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params;
 202
 203         DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n"
 204            "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n",
 205            vf->abs_vfid,
 206            q_idx,
 207            sb_idx,
 208            init_params->rx.sb_cq_index,
 209            init_params->rx.hc_rate,
 210            setup_params->gen_params.mtu,
 211            rxq_params->buf_sz,
 212            rxq_params->sge_buf_sz,
 213            rxq_params->max_sges_pkt,
 214            rxq_params->tpa_agg_sz,
 215            setup_params->flags,
 216            rxq_params->drop_flags,
 217            rxq_params->cache_line_log);
 218 }
 219
 220 void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
 221                            struct bnx2x_virtf *vf,
 222                            struct bnx2x_vf_queue *q,
 223                            struct bnx2x_vfop_qctor_params *p,
 224                            unsigned long q_type)
 225 {
 226         struct bnx2x_queue_init_params *init_p = &p->qstate.params.init;
 227         struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup;
 228
 229         /* INIT */
 230
 231         /* Enable host coalescing in the transition to INIT state */
 232         if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags))
 233                 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags);
 234
 235         if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags))
 236                 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags);
 237
 238         /* FW SB ID */
 239         init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 240         init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 241
 242         /* context */
 243         init_p->cxts[0] = q->cxt;
 244
 245         /* SETUP */
 246
 247         /* Setup-op general parameters */
 248         setup_p->gen_params.spcl_id = vf->sp_cl_id;
 249         setup_p->gen_params.stat_id = vfq_stat_id(vf, q);
 250
 251         /* Setup-op pause params:
 252          * Nothing to do, the pause thresholds are set by default to 0 which
 253          * effectively turns off the feature for this queue. We don't want
 254          * one queue (VF) to interfering with another queue (another VF)
 255          */
 256         if (vf->cfg_flags & VF_CFG_FW_FC)
 257                 BNX2X_ERR("No support for pause to VFs (abs_vfid: %d)\n",
 258                           vf->abs_vfid);
 259         /* Setup-op flags:
 260          * collect statistics, zero statistics, local-switching, security,
 261          * OV for Flex10, RSS and MCAST for leading
 262          */
 263         if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags))
 264                 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags);
 265
 266         /* for VFs, enable tx switching, bd coherency, and mac address
 267          * anti-spoofing
 268          */
 269         __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags);
 270         __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags);
 271         __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
 272
 273         /* Setup-op rx parameters */
 274         if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) {
 275                 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params;
 276
 277                 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q);
 278                 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 279                 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid);
 280
 281                 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags))
 282                         rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES;
 283         }
 284
 285         /* Setup-op tx parameters */
 286         if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) {
 287                 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss;
 288                 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
 289         }
 290 }
 291
 292 /* VFOP queue construction */
 293 static void bnx2x_vfop_qctor(struct bnx2x *bp, struct bnx2x_virtf *vf)
 294 {
 295         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 296         struct bnx2x_vfop_args_qctor *args = &vfop->args.qctor;
 297         struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
 298         enum bnx2x_vfop_qctor_state state = vfop->state;
 299
 300         bnx2x_vfop_reset_wq(vf);
 301
 302         if (vfop->rc < 0)
 303                 goto op_err;
 304
 305         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 306
 307         switch (state) {
 308         case BNX2X_VFOP_QCTOR_INIT:
 309
 310                 /* has this queue already been opened? */
 311                 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
 312                     BNX2X_Q_LOGICAL_STATE_ACTIVE) {
 313                         DP(BNX2X_MSG_IOV,
 314                            "Entered qctor but queue was already up. Aborting gracefully\n");
 315                         goto op_done;
 316                 }
 317
 318                 /* next state */
 319                 vfop->state = BNX2X_VFOP_QCTOR_SETUP;
 320
 321                 q_params->cmd = BNX2X_Q_CMD_INIT;
 322                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 323
 324                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 325
 326         case BNX2X_VFOP_QCTOR_SETUP:
 327                 /* next state */
 328                 vfop->state = BNX2X_VFOP_QCTOR_INT_EN;
 329
 330                 /* copy pre-prepared setup params to the queue-state params */
 331                 vfop->op_p->qctor.qstate.params.setup =
 332                         vfop->op_p->qctor.prep_qsetup;
 333
 334                 q_params->cmd = BNX2X_Q_CMD_SETUP;
 335                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 336
 337                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 338
 339         case BNX2X_VFOP_QCTOR_INT_EN:
 340
 341                 /* enable interrupts */
 342                 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, args->sb_idx),
 343                                     USTORM_ID, 0, IGU_INT_ENABLE, 0);
 344                 goto op_done;
 345         default:
 346                 bnx2x_vfop_default(state);
 347         }
 348 op_err:
 349         BNX2X_ERR("QCTOR[%d:%d] error: cmd %d, rc %d\n",
 350                   vf->abs_vfid, args->qid, q_params->cmd, vfop->rc);
 351 op_done:
 352         bnx2x_vfop_end(bp, vf, vfop);
 353 op_pending:
 354         return;
 355 }
 356
 357 static int bnx2x_vfop_qctor_cmd(struct bnx2x *bp,
 358                                 struct bnx2x_virtf *vf,
 359                                 struct bnx2x_vfop_cmd *cmd,
 360                                 int qid)
 361 {
 362         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 363
 364         if (vfop) {
 365                 vf->op_params.qctor.qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
 366
 367                 vfop->args.qctor.qid = qid;
 368                 vfop->args.qctor.sb_idx = bnx2x_vfq(vf, qid, sb_idx);
 369
 370                 bnx2x_vfop_opset(BNX2X_VFOP_QCTOR_INIT,
 371                                  bnx2x_vfop_qctor, cmd->done);
 372                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qctor,
 373                                              cmd->block);
 374         }
 375         return -ENOMEM;
 376 }
 377
 378 /* VFOP queue destruction */
 379 static void bnx2x_vfop_qdtor(struct bnx2x *bp, struct bnx2x_virtf *vf)
 380 {
 381         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 382         struct bnx2x_vfop_args_qdtor *qdtor = &vfop->args.qdtor;
 383         struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate;
 384         enum bnx2x_vfop_qdtor_state state = vfop->state;
 385
 386         bnx2x_vfop_reset_wq(vf);
 387
 388         if (vfop->rc < 0)
 389                 goto op_err;
 390
 391         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 392
 393         switch (state) {
 394         case BNX2X_VFOP_QDTOR_HALT:
 395
 396                 /* has this queue already been stopped? */
 397                 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
 398                     BNX2X_Q_LOGICAL_STATE_STOPPED) {
 399                         DP(BNX2X_MSG_IOV,
 400                            "Entered qdtor but queue was already stopped. Aborting gracefully\n");
 401
 402                         /* next state */
 403                         vfop->state = BNX2X_VFOP_QDTOR_DONE;
 404
 405                         bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 406                 }
 407
 408                 /* next state */
 409                 vfop->state = BNX2X_VFOP_QDTOR_TERMINATE;
 410
 411                 q_params->cmd = BNX2X_Q_CMD_HALT;
 412                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 413
 414                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 415
 416         case BNX2X_VFOP_QDTOR_TERMINATE:
 417                 /* next state */
 418                 vfop->state = BNX2X_VFOP_QDTOR_CFCDEL;
 419
 420                 q_params->cmd = BNX2X_Q_CMD_TERMINATE;
 421                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 422
 423                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 424
 425         case BNX2X_VFOP_QDTOR_CFCDEL:
 426                 /* next state */
 427                 vfop->state = BNX2X_VFOP_QDTOR_DONE;
 428
 429                 q_params->cmd = BNX2X_Q_CMD_CFC_DEL;
 430                 vfop->rc = bnx2x_queue_state_change(bp, q_params);
 431
 432                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 433 op_err:
 434         BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n",
 435                   vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc);
 436 op_done:
 437         case BNX2X_VFOP_QDTOR_DONE:
 438                 /* invalidate the context */
 439                 if (qdtor->cxt) {
 440                         qdtor->cxt->ustorm_ag_context.cdu_usage = 0;
 441                         qdtor->cxt->xstorm_ag_context.cdu_reserved = 0;
 442                 }
 443                 bnx2x_vfop_end(bp, vf, vfop);
 444                 return;
 445         default:
 446                 bnx2x_vfop_default(state);
 447         }
 448 op_pending:
 449         return;
 450 }
 451
 452 static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp,
 453                                 struct bnx2x_virtf *vf,
 454                                 struct bnx2x_vfop_cmd *cmd,
 455                                 int qid)
 456 {
 457         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 458
 459         if (vfop) {
 460                 struct bnx2x_queue_state_params *qstate =
 461                         &vf->op_params.qctor.qstate;
 462
 463                 memset(qstate, 0, sizeof(*qstate));
 464                 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
 465
 466                 vfop->args.qdtor.qid = qid;
 467                 vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt);
 468
 469                 bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT,
 470                                  bnx2x_vfop_qdtor, cmd->done);
 471                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
 472                                              cmd->block);
 473         }
 474         DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
 475            vf->abs_vfid, vfop->rc);
 476         return -ENOMEM;
 477 }
 478
 479 static void
 480 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
 481 {
 482         struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
 483         if (vf) {
 484                 /* the first igu entry belonging to VFs of this PF */
 485                 if (!BP_VFDB(bp)->first_vf_igu_entry)
 486                         BP_VFDB(bp)->first_vf_igu_entry = igu_sb_id;
 487
 488                 /* the first igu entry belonging to this VF */
 489                 if (!vf_sb_count(vf))
 490                         vf->igu_base_id = igu_sb_id;
 491
 492                 ++vf_sb_count(vf);
 493                 ++vf->sb_count;
 494         }
 495         BP_VFDB(bp)->vf_sbs_pool++;
 496 }
 497
 498 /* VFOP MAC/VLAN helpers */
 499 static inline void bnx2x_vfop_credit(struct bnx2x *bp,
 500                                      struct bnx2x_vfop *vfop,
 501                                      struct bnx2x_vlan_mac_obj *obj)
 502 {
 503         struct bnx2x_vfop_args_filters *args = &vfop->args.filters;
 504
 505         /* update credit only if there is no error
 506          * and a valid credit counter
 507          */
 508         if (!vfop->rc && args->credit) {
 509                 struct list_head *pos;
 510                 int read_lock;
 511                 int cnt = 0;
 512
 513                 read_lock = bnx2x_vlan_mac_h_read_lock(bp, obj);
 514                 if (read_lock)
 515                         DP(BNX2X_MSG_SP, "Failed to take vlan mac read head; continuing anyway\n");
 516
 517                 list_for_each(pos, &obj->head)
 518                         cnt++;
 519
 520                 if (!read_lock)
 521                         bnx2x_vlan_mac_h_read_unlock(bp, obj);
 522
 523                 atomic_set(args->credit, cnt);
 524         }
 525 }
 526
 527 static int bnx2x_vfop_set_user_req(struct bnx2x *bp,
 528                                     struct bnx2x_vfop_filter *pos,
 529                                     struct bnx2x_vlan_mac_data *user_req)
 530 {
 531         user_req->cmd = pos->add ? BNX2X_VLAN_MAC_ADD :
 532                 BNX2X_VLAN_MAC_DEL;
 533
 534         switch (pos->type) {
 535         case BNX2X_VFOP_FILTER_MAC:
 536                 memcpy(user_req->u.mac.mac, pos->mac, ETH_ALEN);
 537                 break;
 538         case BNX2X_VFOP_FILTER_VLAN:
 539                 user_req->u.vlan.vlan = pos->vid;
 540                 break;
 541         default:
 542                 BNX2X_ERR("Invalid filter type, skipping\n");
 543                 return 1;
 544         }
 545         return 0;
 546 }
 547
 548 static int
 549 bnx2x_vfop_config_vlan0(struct bnx2x *bp,
 550                         struct bnx2x_vlan_mac_ramrod_params *vlan_mac,
 551                         bool add)
 552 {
 553         int rc;
 554
 555         vlan_mac->user_req.cmd = add ? BNX2X_VLAN_MAC_ADD :
 556                 BNX2X_VLAN_MAC_DEL;
 557         vlan_mac->user_req.u.vlan.vlan = 0;
 558
 559         rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 560         if (rc == -EEXIST)
 561                 rc = 0;
 562         return rc;
 563 }
 564
 565 static int bnx2x_vfop_config_list(struct bnx2x *bp,
 566                                   struct bnx2x_vfop_filters *filters,
 567                                   struct bnx2x_vlan_mac_ramrod_params *vlan_mac)
 568 {
 569         struct bnx2x_vfop_filter *pos, *tmp;
 570         struct list_head rollback_list, *filters_list = &filters->head;
 571         struct bnx2x_vlan_mac_data *user_req = &vlan_mac->user_req;
 572         int rc = 0, cnt = 0;
 573
 574         INIT_LIST_HEAD(&rollback_list);
 575
 576         list_for_each_entry_safe(pos, tmp, filters_list, link) {
 577                 if (bnx2x_vfop_set_user_req(bp, pos, user_req))
 578                         continue;
 579
 580                 rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 581                 if (rc >= 0) {
 582                         cnt += pos->add ? 1 : -1;
 583                         list_move(&pos->link, &rollback_list);
 584                         rc = 0;
 585                 } else if (rc == -EEXIST) {
 586                         rc = 0;
 587                 } else {
 588                         BNX2X_ERR("Failed to add a new vlan_mac command\n");
 589                         break;
 590                 }
 591         }
 592
 593         /* rollback if error or too many rules added */
 594         if (rc || cnt > filters->add_cnt) {
 595                 BNX2X_ERR("error or too many rules added. Performing rollback\n");
 596                 list_for_each_entry_safe(pos, tmp, &rollback_list, link) {
 597                         pos->add = !pos->add;   /* reverse op */
 598                         bnx2x_vfop_set_user_req(bp, pos, user_req);
 599                         bnx2x_config_vlan_mac(bp, vlan_mac);
 600                         list_del(&pos->link);
 601                 }
 602                 cnt = 0;
 603                 if (!rc)
 604                         rc = -EINVAL;
 605         }
 606         filters->add_cnt = cnt;
 607         return rc;
 608 }
 609
 610 /* VFOP set VLAN/MAC */
 611 static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
 612 {
 613         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 614         struct bnx2x_vlan_mac_ramrod_params *vlan_mac = &vfop->op_p->vlan_mac;
 615         struct bnx2x_vlan_mac_obj *obj = vlan_mac->vlan_mac_obj;
 616         struct bnx2x_vfop_filters *filters = vfop->args.filters.multi_filter;
 617
 618         enum bnx2x_vfop_vlan_mac_state state = vfop->state;
 619
 620         if (vfop->rc < 0)
 621                 goto op_err;
 622
 623         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 624
 625         bnx2x_vfop_reset_wq(vf);
 626
 627         switch (state) {
 628         case BNX2X_VFOP_VLAN_MAC_CLEAR:
 629                 /* next state */
 630                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 631
 632                 /* do delete */
 633                 vfop->rc = obj->delete_all(bp, obj,
 634                                            &vlan_mac->user_req.vlan_mac_flags,
 635                                            &vlan_mac->ramrod_flags);
 636
 637                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 638
 639         case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE:
 640                 /* next state */
 641                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 642
 643                 /* do config */
 644                 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 645                 if (vfop->rc == -EEXIST)
 646                         vfop->rc = 0;
 647
 648                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 649
 650         case BNX2X_VFOP_VLAN_MAC_CHK_DONE:
 651                 vfop->rc = !!obj->raw.check_pending(&obj->raw);
 652                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 653
 654         case BNX2X_VFOP_MAC_CONFIG_LIST:
 655                 /* next state */
 656                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 657
 658                 /* do list config */
 659                 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
 660                 if (vfop->rc)
 661                         goto op_err;
 662
 663                 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
 664                 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 665                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 666
 667         case BNX2X_VFOP_VLAN_CONFIG_LIST:
 668                 /* next state */
 669                 vfop->state = BNX2X_VFOP_VLAN_CONFIG_LIST_0;
 670
 671                 /* remove vlan0 - could be no-op */
 672                 vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, false);
 673                 if (vfop->rc)
 674                         goto op_err;
 675
 676                 /* Do vlan list config. if this operation fails we try to
 677                  * restore vlan0 to keep the queue is working order
 678                  */
 679                 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac);
 680                 if (!vfop->rc) {
 681                         set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
 682                         vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 683                 }
 684                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); /* fall-through */
 685
 686         case BNX2X_VFOP_VLAN_CONFIG_LIST_0:
 687                 /* next state */
 688                 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE;
 689
 690                 if (list_empty(&obj->head))
 691                         /* add vlan0 */
 692                         vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, true);
 693                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 694
 695         default:
 696                 bnx2x_vfop_default(state);
 697         }
 698 op_err:
 699         BNX2X_ERR("VLAN-MAC error: rc %d\n", vfop->rc);
 700 op_done:
 701         kfree(filters);
 702         bnx2x_vfop_credit(bp, vfop, obj);
 703         bnx2x_vfop_end(bp, vf, vfop);
 704 op_pending:
 705         return;
 706 }
 707
 708 struct bnx2x_vfop_vlan_mac_flags {
 709         bool drv_only;
 710         bool dont_consume;
 711         bool single_cmd;
 712         bool add;
 713 };
 714
 715 static void
 716 bnx2x_vfop_vlan_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
 717                                 struct bnx2x_vfop_vlan_mac_flags *flags)
 718 {
 719         struct bnx2x_vlan_mac_data *ureq = &ramrod->user_req;
 720
 721         memset(ramrod, 0, sizeof(*ramrod));
 722
 723         /* ramrod flags */
 724         if (flags->drv_only)
 725                 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod->ramrod_flags);
 726         if (flags->single_cmd)
 727                 set_bit(RAMROD_EXEC, &ramrod->ramrod_flags);
 728
 729         /* mac_vlan flags */
 730         if (flags->dont_consume)
 731                 set_bit(BNX2X_DONT_CONSUME_CAM_CREDIT, &ureq->vlan_mac_flags);
 732
 733         /* cmd */
 734         ureq->cmd = flags->add ? BNX2X_VLAN_MAC_ADD : BNX2X_VLAN_MAC_DEL;
 735 }
 736
 737 static inline void
 738 bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod,
 739                            struct bnx2x_vfop_vlan_mac_flags *flags)
 740 {
 741         bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, flags);
 742         set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags);
 743 }
 744
 745 static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp,
 746                                      struct bnx2x_virtf *vf,
 747                                      struct bnx2x_vfop_cmd *cmd,
 748                                      int qid, bool drv_only)
 749 {
 750         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 751         int rc;
 752
 753         if (vfop) {
 754                 struct bnx2x_vfop_args_filters filters = {
 755                         .multi_filter = NULL,   /* single */
 756                         .credit = NULL,         /* consume credit */
 757                 };
 758                 struct bnx2x_vfop_vlan_mac_flags flags = {
 759                         .drv_only = drv_only,
 760                         .dont_consume = (filters.credit != NULL),
 761                         .single_cmd = true,
 762                         .add = false /* don't care */,
 763                 };
 764                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 765                         &vf->op_params.vlan_mac;
 766
 767                 /* set ramrod params */
 768                 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
 769
 770                 /* set object */
 771                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
 772                 if (rc)
 773                         return rc;
 774                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
 775
 776                 /* set extra args */
 777                 vfop->args.filters = filters;
 778
 779                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
 780                                  bnx2x_vfop_vlan_mac, cmd->done);
 781                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 782                                              cmd->block);
 783         }
 784         return -ENOMEM;
 785 }
 786
 787 int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
 788                             struct bnx2x_virtf *vf,
 789                             struct bnx2x_vfop_cmd *cmd,
 790                             struct bnx2x_vfop_filters *macs,
 791                             int qid, bool drv_only)
 792 {
 793         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 794         int rc;
 795
 796         if (vfop) {
 797                 struct bnx2x_vfop_args_filters filters = {
 798                         .multi_filter = macs,
 799                         .credit = NULL,         /* consume credit */
 800                 };
 801                 struct bnx2x_vfop_vlan_mac_flags flags = {
 802                         .drv_only = drv_only,
 803                         .dont_consume = (filters.credit != NULL),
 804                         .single_cmd = false,
 805                         .add = false, /* don't care since only the items in the
 806                                        * filters list affect the sp operation,
 807                                        * not the list itself
 808                                        */
 809                 };
 810                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 811                         &vf->op_params.vlan_mac;
 812
 813                 /* set ramrod params */
 814                 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
 815
 816                 /* set object */
 817                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
 818                 if (rc)
 819                         return rc;
 820                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
 821
 822                 /* set extra args */
 823                 filters.multi_filter->add_cnt = BNX2X_VFOP_FILTER_ADD_CNT_MAX;
 824                 vfop->args.filters = filters;
 825
 826                 bnx2x_vfop_opset(BNX2X_VFOP_MAC_CONFIG_LIST,
 827                                  bnx2x_vfop_vlan_mac, cmd->done);
 828                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 829                                              cmd->block);
 830         }
 831         return -ENOMEM;
 832 }
 833
 834 int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
 835                             struct bnx2x_virtf *vf,
 836                             struct bnx2x_vfop_cmd *cmd,
 837                             int qid, u16 vid, bool add)
 838 {
 839         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 840         int rc;
 841
 842         if (vfop) {
 843                 struct bnx2x_vfop_args_filters filters = {
 844                         .multi_filter = NULL, /* single command */
 845                         .credit = &bnx2x_vfq(vf, qid, vlan_count),
 846                 };
 847                 struct bnx2x_vfop_vlan_mac_flags flags = {
 848                         .drv_only = false,
 849                         .dont_consume = (filters.credit != NULL),
 850                         .single_cmd = true,
 851                         .add = add,
 852                 };
 853                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 854                         &vf->op_params.vlan_mac;
 855
 856                 /* set ramrod params */
 857                 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
 858                 ramrod->user_req.u.vlan.vlan = vid;
 859
 860                 /* set object */
 861                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
 862                 if (rc)
 863                         return rc;
 864                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
 865
 866                 /* set extra args */
 867                 vfop->args.filters = filters;
 868
 869                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE,
 870                                  bnx2x_vfop_vlan_mac, cmd->done);
 871                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 872                                              cmd->block);
 873         }
 874         return -ENOMEM;
 875 }
 876
 877 static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp,
 878                                struct bnx2x_virtf *vf,
 879                                struct bnx2x_vfop_cmd *cmd,
 880                                int qid, bool drv_only)
 881 {
 882         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 883         int rc;
 884
 885         if (vfop) {
 886                 struct bnx2x_vfop_args_filters filters = {
 887                         .multi_filter = NULL, /* single command */
 888                         .credit = &bnx2x_vfq(vf, qid, vlan_count),
 889                 };
 890                 struct bnx2x_vfop_vlan_mac_flags flags = {
 891                         .drv_only = drv_only,
 892                         .dont_consume = (filters.credit != NULL),
 893                         .single_cmd = true,
 894                         .add = false, /* don't care */
 895                 };
 896                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 897                         &vf->op_params.vlan_mac;
 898
 899                 /* set ramrod params */
 900                 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
 901
 902                 /* set object */
 903                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
 904                 if (rc)
 905                         return rc;
 906                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
 907
 908                 /* set extra args */
 909                 vfop->args.filters = filters;
 910
 911                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR,
 912                                  bnx2x_vfop_vlan_mac, cmd->done);
 913                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 914                                              cmd->block);
 915         }
 916         return -ENOMEM;
 917 }
 918
 919 int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
 920                              struct bnx2x_virtf *vf,
 921                              struct bnx2x_vfop_cmd *cmd,
 922                              struct bnx2x_vfop_filters *vlans,
 923                              int qid, bool drv_only)
 924 {
 925         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 926         int rc;
 927
 928         if (vfop) {
 929                 struct bnx2x_vfop_args_filters filters = {
 930                         .multi_filter = vlans,
 931                         .credit = &bnx2x_vfq(vf, qid, vlan_count),
 932                 };
 933                 struct bnx2x_vfop_vlan_mac_flags flags = {
 934                         .drv_only = drv_only,
 935                         .dont_consume = (filters.credit != NULL),
 936                         .single_cmd = false,
 937                         .add = false, /* don't care */
 938                 };
 939                 struct bnx2x_vlan_mac_ramrod_params *ramrod =
 940                         &vf->op_params.vlan_mac;
 941
 942                 /* set ramrod params */
 943                 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
 944
 945                 /* set object */
 946                 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
 947                 if (rc)
 948                         return rc;
 949                 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
 950
 951                 /* set extra args */
 952                 filters.multi_filter->add_cnt = vf_vlan_rules_cnt(vf) -
 953                         atomic_read(filters.credit);
 954
 955                 vfop->args.filters = filters;
 956
 957                 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_CONFIG_LIST,
 958                                  bnx2x_vfop_vlan_mac, cmd->done);
 959                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac,
 960                                              cmd->block);
 961         }
 962         return -ENOMEM;
 963 }
 964
 965 /* VFOP queue setup (queue constructor + set vlan 0) */
 966 static void bnx2x_vfop_qsetup(struct bnx2x *bp, struct bnx2x_virtf *vf)
 967 {
 968         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
 969         int qid = vfop->args.qctor.qid;
 970         enum bnx2x_vfop_qsetup_state state = vfop->state;
 971         struct bnx2x_vfop_cmd cmd = {
 972                 .done = bnx2x_vfop_qsetup,
 973                 .block = false,
 974         };
 975
 976         if (vfop->rc < 0)
 977                 goto op_err;
 978
 979         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
 980
 981         switch (state) {
 982         case BNX2X_VFOP_QSETUP_CTOR:
 983                 /* init the queue ctor command */
 984                 vfop->state = BNX2X_VFOP_QSETUP_VLAN0;
 985                 vfop->rc = bnx2x_vfop_qctor_cmd(bp, vf, &cmd, qid);
 986                 if (vfop->rc)
 987                         goto op_err;
 988                 return;
 989
 990         case BNX2X_VFOP_QSETUP_VLAN0:
 991                 /* skip if non-leading or FPGA/EMU*/
 992                 if (qid)
 993                         goto op_done;
 994
 995                 /* init the queue set-vlan command (for vlan 0) */
 996                 vfop->state = BNX2X_VFOP_QSETUP_DONE;
 997                 vfop->rc = bnx2x_vfop_vlan_set_cmd(bp, vf, &cmd, qid, 0, true);
 998                 if (vfop->rc)
 999                         goto op_err;
1000                 return;
1001 op_err:
1002         BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, vfop->rc);
1003 op_done:
1004         case BNX2X_VFOP_QSETUP_DONE:
1005                 vf->cfg_flags |= VF_CFG_VLAN;
1006                 smp_mb__before_clear_bit();
1007                 set_bit(BNX2X_SP_RTNL_HYPERVISOR_VLAN,
1008                         &bp->sp_rtnl_state);
1009                 smp_mb__after_clear_bit();
1010                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
1011                 bnx2x_vfop_end(bp, vf, vfop);
1012                 return;
1013         default:
1014                 bnx2x_vfop_default(state);
1015         }
1016 }
1017
1018 int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp,
1019                           struct bnx2x_virtf *vf,
1020                           struct bnx2x_vfop_cmd *cmd,
1021                           int qid)
1022 {
1023         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1024
1025         if (vfop) {
1026                 vfop->args.qctor.qid = qid;
1027
1028                 bnx2x_vfop_opset(BNX2X_VFOP_QSETUP_CTOR,
1029                                  bnx2x_vfop_qsetup, cmd->done);
1030                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qsetup,
1031                                              cmd->block);
1032         }
1033         return -ENOMEM;
1034 }
1035
1036 /* VFOP queue FLR handling (clear vlans, clear macs, queue destructor) */
1037 static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1038 {
1039         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1040         int qid = vfop->args.qx.qid;
1041         enum bnx2x_vfop_qflr_state state = vfop->state;
1042         struct bnx2x_queue_state_params *qstate;
1043         struct bnx2x_vfop_cmd cmd;
1044
1045         bnx2x_vfop_reset_wq(vf);
1046
1047         if (vfop->rc < 0)
1048                 goto op_err;
1049
1050         DP(BNX2X_MSG_IOV, "VF[%d] STATE: %d\n", vf->abs_vfid, state);
1051
1052         cmd.done = bnx2x_vfop_qflr;
1053         cmd.block = false;
1054
1055         switch (state) {
1056         case BNX2X_VFOP_QFLR_CLR_VLAN:
1057                 /* vlan-clear-all: driver-only, don't consume credit */
1058                 vfop->state = BNX2X_VFOP_QFLR_CLR_MAC;
1059                 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj)))
1060                         vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid,
1061                                                               true);
1062                 if (vfop->rc)
1063                         goto op_err;
1064                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1065
1066         case BNX2X_VFOP_QFLR_CLR_MAC:
1067                 /* mac-clear-all: driver only consume credit */
1068                 vfop->state = BNX2X_VFOP_QFLR_TERMINATE;
1069                 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj)))
1070                         vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid,
1071                                                              true);
1072                 DP(BNX2X_MSG_IOV,
1073                    "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d",
1074                    vf->abs_vfid, vfop->rc);
1075                 if (vfop->rc)
1076                         goto op_err;
1077                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1078
1079         case BNX2X_VFOP_QFLR_TERMINATE:
1080                 qstate = &vfop->op_p->qctor.qstate;
1081                 memset(qstate , 0, sizeof(*qstate));
1082                 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
1083                 vfop->state = BNX2X_VFOP_QFLR_DONE;
1084
1085                 DP(BNX2X_MSG_IOV, "VF[%d] qstate during flr was %d\n",
1086                    vf->abs_vfid, qstate->q_obj->state);
1087
1088                 if (qstate->q_obj->state != BNX2X_Q_STATE_RESET) {
1089                         qstate->q_obj->state = BNX2X_Q_STATE_STOPPED;
1090                         qstate->cmd = BNX2X_Q_CMD_TERMINATE;
1091                         vfop->rc = bnx2x_queue_state_change(bp, qstate);
1092                         bnx2x_vfop_finalize(vf, vfop->rc, VFOP_VERIFY_PEND);
1093                 } else {
1094                         goto op_done;
1095                 }
1096
1097 op_err:
1098         BNX2X_ERR("QFLR[%d:%d] error: rc %d\n",
1099                   vf->abs_vfid, qid, vfop->rc);
1100 op_done:
1101         case BNX2X_VFOP_QFLR_DONE:
1102                 bnx2x_vfop_end(bp, vf, vfop);
1103                 return;
1104         default:
1105                 bnx2x_vfop_default(state);
1106         }
1107 op_pending:
1108         return;
1109 }
1110
1111 static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp,
1112                                struct bnx2x_virtf *vf,
1113                                struct bnx2x_vfop_cmd *cmd,
1114                                int qid)
1115 {
1116         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1117
1118         if (vfop) {
1119                 vfop->args.qx.qid = qid;
1120                 bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN,
1121                                  bnx2x_vfop_qflr, cmd->done);
1122                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr,
1123                                              cmd->block);
1124         }
1125         return -ENOMEM;
1126 }
1127
1128 /* VFOP multi-casts */
1129 static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf)
1130 {
1131         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1132         struct bnx2x_mcast_ramrod_params *mcast = &vfop->op_p->mcast;
1133         struct bnx2x_raw_obj *raw = &mcast->mcast_obj->raw;
1134         struct bnx2x_vfop_args_mcast *args = &vfop->args.mc_list;
1135         enum bnx2x_vfop_mcast_state state = vfop->state;
1136         int i;
1137
1138         bnx2x_vfop_reset_wq(vf);
1139
1140         if (vfop->rc < 0)
1141                 goto op_err;
1142
1143         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1144
1145         switch (state) {
1146         case BNX2X_VFOP_MCAST_DEL:
1147                 /* clear existing mcasts */
1148                 vfop->state = BNX2X_VFOP_MCAST_ADD;
1149                 vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL);
1150                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
1151
1152         case BNX2X_VFOP_MCAST_ADD:
1153                 if (raw->check_pending(raw))
1154                         goto op_pending;
1155
1156                 if (args->mc_num) {
1157                         /* update mcast list on the ramrod params */
1158                         INIT_LIST_HEAD(&mcast->mcast_list);
1159                         for (i = 0; i < args->mc_num; i++)
1160                                 list_add_tail(&(args->mc[i].link),
1161                                               &mcast->mcast_list);
1162                         /* add new mcasts */
1163                         vfop->state = BNX2X_VFOP_MCAST_CHK_DONE;
1164                         vfop->rc = bnx2x_config_mcast(bp, mcast,
1165                                                       BNX2X_MCAST_CMD_ADD);
1166                 }
1167                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1168
1169         case BNX2X_VFOP_MCAST_CHK_DONE:
1170                 vfop->rc = raw->check_pending(raw) ? 1 : 0;
1171                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1172         default:
1173                 bnx2x_vfop_default(state);
1174         }
1175 op_err:
1176         BNX2X_ERR("MCAST CONFIG error: rc %d\n", vfop->rc);
1177 op_done:
1178         kfree(args->mc);
1179         bnx2x_vfop_end(bp, vf, vfop);
1180 op_pending:
1181         return;
1182 }
1183
1184 int bnx2x_vfop_mcast_cmd(struct bnx2x *bp,
1185                          struct bnx2x_virtf *vf,
1186                          struct bnx2x_vfop_cmd *cmd,
1187                          bnx2x_mac_addr_t *mcasts,
1188                          int mcast_num, bool drv_only)
1189 {
1190         struct bnx2x_vfop *vfop = NULL;
1191         size_t mc_sz = mcast_num * sizeof(struct bnx2x_mcast_list_elem);
1192         struct bnx2x_mcast_list_elem *mc = mc_sz ? kzalloc(mc_sz, GFP_KERNEL) :
1193                                            NULL;
1194
1195         if (!mc_sz || mc) {
1196                 vfop = bnx2x_vfop_add(bp, vf);
1197                 if (vfop) {
1198                         int i;
1199                         struct bnx2x_mcast_ramrod_params *ramrod =
1200                                 &vf->op_params.mcast;
1201
1202                         /* set ramrod params */
1203                         memset(ramrod, 0, sizeof(*ramrod));
1204                         ramrod->mcast_obj = &vf->mcast_obj;
1205                         if (drv_only)
1206                                 set_bit(RAMROD_DRV_CLR_ONLY,
1207                                         &ramrod->ramrod_flags);
1208
1209                         /* copy mcasts pointers */
1210                         vfop->args.mc_list.mc_num = mcast_num;
1211                         vfop->args.mc_list.mc = mc;
1212                         for (i = 0; i < mcast_num; i++)
1213                                 mc[i].mac = mcasts[i];
1214
1215                         bnx2x_vfop_opset(BNX2X_VFOP_MCAST_DEL,
1216                                          bnx2x_vfop_mcast, cmd->done);
1217                         return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mcast,
1218                                                      cmd->block);
1219                 } else {
1220                         kfree(mc);
1221                 }
1222         }
1223         return -ENOMEM;
1224 }
1225
1226 /* VFOP rx-mode */
1227 static void bnx2x_vfop_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf)
1228 {
1229         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1230         struct bnx2x_rx_mode_ramrod_params *ramrod = &vfop->op_p->rx_mode;
1231         enum bnx2x_vfop_rxmode_state state = vfop->state;
1232
1233         bnx2x_vfop_reset_wq(vf);
1234
1235         if (vfop->rc < 0)
1236                 goto op_err;
1237
1238         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1239
1240         switch (state) {
1241         case BNX2X_VFOP_RXMODE_CONFIG:
1242                 /* next state */
1243                 vfop->state = BNX2X_VFOP_RXMODE_DONE;
1244
1245                 vfop->rc = bnx2x_config_rx_mode(bp, ramrod);
1246                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
1247 op_err:
1248                 BNX2X_ERR("RXMODE error: rc %d\n", vfop->rc);
1249 op_done:
1250         case BNX2X_VFOP_RXMODE_DONE:
1251                 bnx2x_vfop_end(bp, vf, vfop);
1252                 return;
1253         default:
1254                 bnx2x_vfop_default(state);
1255         }
1256 op_pending:
1257         return;
1258 }
1259
1260 int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp,
1261                           struct bnx2x_virtf *vf,
1262                           struct bnx2x_vfop_cmd *cmd,
1263                           int qid, unsigned long accept_flags)
1264 {
1265         struct bnx2x_vf_queue *vfq = vfq_get(vf, qid);
1266         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1267
1268         if (vfop) {
1269                 struct bnx2x_rx_mode_ramrod_params *ramrod =
1270                         &vf->op_params.rx_mode;
1271
1272                 memset(ramrod, 0, sizeof(*ramrod));
1273
1274                 /* Prepare ramrod parameters */
1275                 ramrod->cid = vfq->cid;
1276                 ramrod->cl_id = vfq_cl_id(vf, vfq);
1277                 ramrod->rx_mode_obj = &bp->rx_mode_obj;
1278                 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid);
1279
1280                 ramrod->rx_accept_flags = accept_flags;
1281                 ramrod->tx_accept_flags = accept_flags;
1282                 ramrod->pstate = &vf->filter_state;
1283                 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING;
1284
1285                 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
1286                 set_bit(RAMROD_RX, &ramrod->ramrod_flags);
1287                 set_bit(RAMROD_TX, &ramrod->ramrod_flags);
1288
1289                 ramrod->rdata =
1290                         bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2);
1291                 ramrod->rdata_mapping =
1292                         bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2);
1293
1294                 bnx2x_vfop_opset(BNX2X_VFOP_RXMODE_CONFIG,
1295                                  bnx2x_vfop_rxmode, cmd->done);
1296                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rxmode,
1297                                              cmd->block);
1298         }
1299         return -ENOMEM;
1300 }
1301
1302 /* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs,
1303  * queue destructor)
1304  */
1305 static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf)
1306 {
1307         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1308         int qid = vfop->args.qx.qid;
1309         enum bnx2x_vfop_qteardown_state state = vfop->state;
1310         struct bnx2x_vfop_cmd cmd;
1311
1312         if (vfop->rc < 0)
1313                 goto op_err;
1314
1315         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1316
1317         cmd.done = bnx2x_vfop_qdown;
1318         cmd.block = false;
1319
1320         switch (state) {
1321         case BNX2X_VFOP_QTEARDOWN_RXMODE:
1322                 /* Drop all */
1323                 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN;
1324                 vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0);
1325                 if (vfop->rc)
1326                         goto op_err;
1327                 return;
1328
1329         case BNX2X_VFOP_QTEARDOWN_CLR_VLAN:
1330                 /* vlan-clear-all: don't consume credit */
1331                 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC;
1332                 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false);
1333                 if (vfop->rc)
1334                         goto op_err;
1335                 return;
1336
1337         case BNX2X_VFOP_QTEARDOWN_CLR_MAC:
1338                 /* mac-clear-all: consume credit */
1339                 vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
1340                 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false);
1341                 if (vfop->rc)
1342                         goto op_err;
1343                 return;
1344
1345         case BNX2X_VFOP_QTEARDOWN_QDTOR:
1346                 /* run the queue destruction flow */
1347                 DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n");
1348                 vfop->state = BNX2X_VFOP_QTEARDOWN_DONE;
1349                 DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n");
1350                 vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid);
1351                 DP(BNX2X_MSG_IOV, "returned from cmd\n");
1352                 if (vfop->rc)
1353                         goto op_err;
1354                 return;
1355 op_err:
1356         BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n",
1357                   vf->abs_vfid, qid, vfop->rc);
1358
1359         case BNX2X_VFOP_QTEARDOWN_DONE:
1360                 bnx2x_vfop_end(bp, vf, vfop);
1361                 return;
1362         default:
1363                 bnx2x_vfop_default(state);
1364         }
1365 }
1366
1367 int bnx2x_vfop_qdown_cmd(struct bnx2x *bp,
1368                          struct bnx2x_virtf *vf,
1369                          struct bnx2x_vfop_cmd *cmd,
1370                          int qid)
1371 {
1372         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1373
1374         /* for non leading queues skip directly to qdown sate */
1375         if (vfop) {
1376                 vfop->args.qx.qid = qid;
1377                 bnx2x_vfop_opset(qid == LEADING_IDX ?
1378                                  BNX2X_VFOP_QTEARDOWN_RXMODE :
1379                                  BNX2X_VFOP_QTEARDOWN_QDTOR, bnx2x_vfop_qdown,
1380                                  cmd->done);
1381                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown,
1382                                              cmd->block);
1383         }
1384
1385         return -ENOMEM;
1386 }
1387
1388 /* VF enable primitives
1389  * when pretend is required the caller is responsible
1390  * for calling pretend prior to calling these routines
1391  */
1392
1393 /* internal vf enable - until vf is enabled internally all transactions
1394  * are blocked. This routine should always be called last with pretend.
1395  */
1396 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
1397 {
1398         REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0);
1399 }
1400
1401 /* clears vf error in all semi blocks */
1402 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid)
1403 {
1404         REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid);
1405         REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid);
1406         REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid);
1407         REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid);
1408 }
1409
1410 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid)
1411 {
1412         u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5;
1413         u32 was_err_reg = 0;
1414
1415         switch (was_err_group) {
1416         case 0:
1417             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR;
1418             break;
1419         case 1:
1420             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR;
1421             break;
1422         case 2:
1423             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR;
1424             break;
1425         case 3:
1426             was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR;
1427             break;
1428         }
1429         REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f));
1430 }
1431
1432 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
1433 {
1434         int i;
1435         u32 val;
1436
1437         /* Set VF masks and configuration - pretend */
1438         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1439
1440         REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
1441         REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
1442         REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
1443         REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
1444         REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
1445         REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
1446
1447         val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
1448         val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN);
1449         if (vf->cfg_flags & VF_CFG_INT_SIMD)
1450                 val |= IGU_VF_CONF_SINGLE_ISR_EN;
1451         val &= ~IGU_VF_CONF_PARENT_MASK;
1452         val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */
1453         REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
1454
1455         DP(BNX2X_MSG_IOV,
1456            "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n",
1457            vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION));
1458
1459         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1460
1461         /* iterate over all queues, clear sb consumer */
1462         for (i = 0; i < vf_sb_count(vf); i++) {
1463                 u8 igu_sb_id = vf_igu_sb(vf, i);
1464
1465                 /* zero prod memory */
1466                 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0);
1467
1468                 /* clear sb state machine */
1469                 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id,
1470                                        false /* VF */);
1471
1472                 /* disable + update */
1473                 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0,
1474                                     IGU_INT_DISABLE, 1);
1475         }
1476 }
1477
1478 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
1479 {
1480         /* set the VF-PF association in the FW */
1481         storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
1482         storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
1483
1484         /* clear vf errors*/
1485         bnx2x_vf_semi_clear_err(bp, abs_vfid);
1486         bnx2x_vf_pglue_clear_err(bp, abs_vfid);
1487
1488         /* internal vf-enable - pretend */
1489         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid));
1490         DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid);
1491         bnx2x_vf_enable_internal(bp, true);
1492         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1493 }
1494
1495 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)
1496 {
1497         /* Reset vf in IGU  interrupts are still disabled */
1498         bnx2x_vf_igu_reset(bp, vf);
1499
1500         /* pretend to enable the vf with the PBF */
1501         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1502         REG_WR(bp, PBF_REG_DISABLE_VF, 0);
1503         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1504 }
1505
1506 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
1507 {
1508         struct pci_dev *dev;
1509         struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
1510
1511         if (!vf)
1512                 return false;
1513
1514         dev = pci_get_bus_and_slot(vf->bus, vf->devfn);
1515         if (dev)
1516                 return bnx2x_is_pcie_pending(dev);
1517         return false;
1518 }
1519
1520 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
1521 {
1522         /* Verify no pending pci transactions */
1523         if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
1524                 BNX2X_ERR("PCIE Transactions still pending\n");
1525
1526         return 0;
1527 }
1528
1529 /* must be called after the number of PF queues and the number of VFs are
1530  * both known
1531  */
1532 static void
1533 bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1534 {
1535         struct vf_pf_resc_request *resc = &vf->alloc_resc;
1536         u16 vlan_count = 0;
1537
1538         /* will be set only during VF-ACQUIRE */
1539         resc->num_rxqs = 0;
1540         resc->num_txqs = 0;
1541
1542         /* no credit calculations for macs (just yet) */
1543         resc->num_mac_filters = 1;
1544
1545         /* divvy up vlan rules */
1546         vlan_count = bp->vlans_pool.check(&bp->vlans_pool);
1547         vlan_count = 1 << ilog2(vlan_count);
1548         resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp);
1549
1550         /* no real limitation */
1551         resc->num_mc_filters = 0;
1552
1553         /* num_sbs already set */
1554         resc->num_sbs = vf->sb_count;
1555 }
1556
1557 /* FLR routines: */
1558 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
1559 {
1560         /* reset the state variables */
1561         bnx2x_iov_static_resc(bp, vf);
1562         vf->state = VF_FREE;
1563 }
1564
1565 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf)
1566 {
1567         u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
1568
1569         /* DQ usage counter */
1570         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
1571         bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT,
1572                                         "DQ VF usage counter timed out",
1573                                         poll_cnt);
1574         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
1575
1576         /* FW cleanup command - poll for the results */
1577         if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid),
1578                                    poll_cnt))
1579                 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid);
1580
1581         /* verify TX hw is flushed */
1582         bnx2x_tx_hw_flushed(bp, poll_cnt);
1583 }
1584
1585 static void bnx2x_vfop_flr(struct bnx2x *bp, struct bnx2x_virtf *vf)
1586 {
1587         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
1588         struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
1589         enum bnx2x_vfop_flr_state state = vfop->state;
1590         struct bnx2x_vfop_cmd cmd = {
1591                 .done = bnx2x_vfop_flr,
1592                 .block = false,
1593         };
1594
1595         if (vfop->rc < 0)
1596                 goto op_err;
1597
1598         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
1599
1600         switch (state) {
1601         case BNX2X_VFOP_FLR_QUEUES:
1602                 /* the cleanup operations are valid if and only if the VF
1603                  * was first acquired.
1604                  */
1605                 if (++(qx->qid) < vf_rxq_count(vf)) {
1606                         vfop->rc = bnx2x_vfop_qflr_cmd(bp, vf, &cmd,
1607                                                        qx->qid);
1608                         if (vfop->rc)
1609                                 goto op_err;
1610                         return;
1611                 }
1612                 /* remove multicasts */
1613                 vfop->state = BNX2X_VFOP_FLR_HW;
1614                 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL,
1615                                                 0, true);
1616                 if (vfop->rc)
1617                         goto op_err;
1618                 return;
1619         case BNX2X_VFOP_FLR_HW:
1620
1621                 /* dispatch final cleanup and wait for HW queues to flush */
1622                 bnx2x_vf_flr_clnup_hw(bp, vf);
1623
1624                 /* release VF resources */
1625                 bnx2x_vf_free_resc(bp, vf);
1626
1627                 /* re-open the mailbox */
1628                 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
1629
1630                 goto op_done;
1631         default:
1632                 bnx2x_vfop_default(state);
1633         }
1634 op_err:
1635         BNX2X_ERR("VF[%d] FLR error: rc %d\n", vf->abs_vfid, vfop->rc);
1636 op_done:
1637         vf->flr_clnup_stage = VF_FLR_ACK;
1638         bnx2x_vfop_end(bp, vf, vfop);
1639         bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1640 }
1641
1642 static int bnx2x_vfop_flr_cmd(struct bnx2x *bp,
1643                               struct bnx2x_virtf *vf,
1644                               vfop_handler_t done)
1645 {
1646         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
1647         if (vfop) {
1648                 vfop->args.qx.qid = -1; /* loop */
1649                 bnx2x_vfop_opset(BNX2X_VFOP_FLR_QUEUES,
1650                                  bnx2x_vfop_flr, done);
1651                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_flr, false);
1652         }
1653         return -ENOMEM;
1654 }
1655
1656 static void bnx2x_vf_flr_clnup(struct bnx2x *bp, struct bnx2x_virtf *prev_vf)
1657 {
1658         int i = prev_vf ? prev_vf->index + 1 : 0;
1659         struct bnx2x_virtf *vf;
1660
1661         /* find next VF to cleanup */
1662 next_vf_to_clean:
1663         for (;
1664              i < BNX2X_NR_VIRTFN(bp) &&
1665              (bnx2x_vf(bp, i, state) != VF_RESET ||
1666               bnx2x_vf(bp, i, flr_clnup_stage) != VF_FLR_CLN);
1667              i++)
1668                 ;
1669
1670         DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n", i,
1671            BNX2X_NR_VIRTFN(bp));
1672
1673         if (i < BNX2X_NR_VIRTFN(bp)) {
1674                 vf = BP_VF(bp, i);
1675
1676                 /* lock the vf pf channel */
1677                 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
1678
1679                 /* invoke the VF FLR SM */
1680                 if (bnx2x_vfop_flr_cmd(bp, vf, bnx2x_vf_flr_clnup)) {
1681                         BNX2X_ERR("VF[%d]: FLR cleanup failed -ENOMEM\n",
1682                                   vf->abs_vfid);
1683
1684                         /* mark the VF to be ACKED and continue */
1685                         vf->flr_clnup_stage = VF_FLR_ACK;
1686                         goto next_vf_to_clean;
1687                 }
1688                 return;
1689         }
1690
1691         /* we are done, update vf records */
1692         for_each_vf(bp, i) {
1693                 vf = BP_VF(bp, i);
1694
1695                 if (vf->flr_clnup_stage != VF_FLR_ACK)
1696                         continue;
1697
1698                 vf->flr_clnup_stage = VF_FLR_EPILOG;
1699         }
1700
1701         /* Acknowledge the handled VFs.
1702          * we are acknowledge all the vfs which an flr was requested for, even
1703          * if amongst them there are such that we never opened, since the mcp
1704          * will interrupt us immediately again if we only ack some of the bits,
1705          * resulting in an endless loop. This can happen for example in KVM
1706          * where an 'all ones' flr request is sometimes given by hyper visor
1707          */
1708         DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n",
1709            bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1710         for (i = 0; i < FLRD_VFS_DWORDS; i++)
1711                 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i],
1712                           bp->vfdb->flrd_vfs[i]);
1713
1714         bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0);
1715
1716         /* clear the acked bits - better yet if the MCP implemented
1717          * write to clear semantics
1718          */
1719         for (i = 0; i < FLRD_VFS_DWORDS; i++)
1720                 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0);
1721 }
1722
1723 void bnx2x_vf_handle_flr_event(struct bnx2x *bp)
1724 {
1725         int i;
1726
1727         /* Read FLR'd VFs */
1728         for (i = 0; i < FLRD_VFS_DWORDS; i++)
1729                 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]);
1730
1731         DP(BNX2X_MSG_MCP,
1732            "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n",
1733            bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
1734
1735         for_each_vf(bp, i) {
1736                 struct bnx2x_virtf *vf = BP_VF(bp, i);
1737                 u32 reset = 0;
1738
1739                 if (vf->abs_vfid < 32)
1740                         reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid);
1741                 else
1742                         reset = bp->vfdb->flrd_vfs[1] &
1743                                 (1 << (vf->abs_vfid - 32));
1744
1745                 if (reset) {
1746                         /* set as reset and ready for cleanup */
1747                         vf->state = VF_RESET;
1748                         vf->flr_clnup_stage = VF_FLR_CLN;
1749
1750                         DP(BNX2X_MSG_IOV,
1751                            "Initiating Final cleanup for VF %d\n",
1752                            vf->abs_vfid);
1753                 }
1754         }
1755
1756         /* do the FLR cleanup for all marked VFs*/
1757         bnx2x_vf_flr_clnup(bp, NULL);
1758 }
1759
1760 /* IOV global initialization routines  */
1761 void bnx2x_iov_init_dq(struct bnx2x *bp)
1762 {
1763         if (!IS_SRIOV(bp))
1764                 return;
1765
1766         /* Set the DQ such that the CID reflect the abs_vfid */
1767         REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0);
1768         REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS));
1769
1770         /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to
1771          * the PF L2 queues
1772          */
1773         REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID);
1774
1775         /* The VF window size is the log2 of the max number of CIDs per VF */
1776         REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND);
1777
1778         /* The VF doorbell size  0 - *B, 4 - 128B. We set it here to match
1779          * the Pf doorbell size although the 2 are independent.
1780          */
1781         REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST, 3);
1782
1783         /* No security checks for now -
1784          * configure single rule (out of 16) mask = 0x1, value = 0x0,
1785          * CID range 0 - 0x1ffff
1786          */
1787         REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1);
1788         REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0);
1789         REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0);
1790         REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff);
1791
1792         /* set the number of VF allowed doorbells to the full DQ range */
1793         REG_WR(bp, DORQ_REG_VF_NORM_MAX_CID_COUNT, 0x20000);
1794
1795         /* set the VF doorbell threshold */
1796         REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 4);
1797 }
1798
1799 void bnx2x_iov_init_dmae(struct bnx2x *bp)
1800 {
1801         if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV))
1802                 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
1803 }
1804
1805 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
1806 {
1807         struct pci_dev *dev = bp->pdev;
1808         struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1809
1810         return dev->bus->number + ((dev->devfn + iov->offset +
1811                                     iov->stride * vfid) >> 8);
1812 }
1813
1814 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid)
1815 {
1816         struct pci_dev *dev = bp->pdev;
1817         struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1818
1819         return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff;
1820 }
1821
1822 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf)
1823 {
1824         int i, n;
1825         struct pci_dev *dev = bp->pdev;
1826         struct bnx2x_sriov *iov = &bp->vfdb->sriov;
1827
1828         for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) {
1829                 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i);
1830                 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i);
1831
1832                 size /= iov->total;
1833                 vf->bars[n].bar = start + size * vf->abs_vfid;
1834                 vf->bars[n].size = size;
1835         }
1836 }
1837
1838 static int bnx2x_ari_enabled(struct pci_dev *dev)
1839 {
1840         return dev->bus->self && dev->bus->self->ari_enabled;
1841 }
1842
1843 static void
1844 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
1845 {
1846         int sb_id;
1847         u32 val;
1848         u8 fid, current_pf = 0;
1849
1850         /* IGU in normal mode - read CAM */
1851         for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) {
1852                 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4);
1853                 if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
1854                         continue;
1855                 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
1856                 if (fid & IGU_FID_ENCODE_IS_PF)
1857                         current_pf = fid & IGU_FID_PF_NUM_MASK;
1858                 else if (current_pf == BP_ABS_FUNC(bp))
1859                         bnx2x_vf_set_igu_info(bp, sb_id,
1860                                               (fid & IGU_FID_VF_NUM_MASK));
1861                 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
1862                    ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"),
1863                    ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) :
1864                    (fid & IGU_FID_VF_NUM_MASK)), sb_id,
1865                    GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR));
1866         }
1867         DP(BNX2X_MSG_IOV, "vf_sbs_pool is %d\n", BP_VFDB(bp)->vf_sbs_pool);
1868 }
1869
1870 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp)
1871 {
1872         if (bp->vfdb) {
1873                 kfree(bp->vfdb->vfqs);
1874                 kfree(bp->vfdb->vfs);
1875                 kfree(bp->vfdb);
1876         }
1877         bp->vfdb = NULL;
1878 }
1879
1880 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1881 {
1882         int pos;
1883         struct pci_dev *dev = bp->pdev;
1884
1885         pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
1886         if (!pos) {
1887                 BNX2X_ERR("failed to find SRIOV capability in device\n");
1888                 return -ENODEV;
1889         }
1890
1891         iov->pos = pos;
1892         DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos);
1893         pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
1894         pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total);
1895         pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial);
1896         pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
1897         pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
1898         pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
1899         pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
1900         pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
1901
1902         return 0;
1903 }
1904
1905 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
1906 {
1907         u32 val;
1908
1909         /* read the SRIOV capability structure
1910          * The fields can be read via configuration read or
1911          * directly from the device (starting at offset PCICFG_OFFSET)
1912          */
1913         if (bnx2x_sriov_pci_cfg_info(bp, iov))
1914                 return -ENODEV;
1915
1916         /* get the number of SRIOV bars */
1917         iov->nres = 0;
1918
1919         /* read the first_vfid */
1920         val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF);
1921         iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK)
1922                                * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp));
1923
1924         DP(BNX2X_MSG_IOV,
1925            "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",
1926            BP_FUNC(bp),
1927            iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total,
1928            iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
1929
1930         return 0;
1931 }
1932
1933 /* must be called after PF bars are mapped */
1934 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
1935                        int num_vfs_param)
1936 {
1937         int err, i;
1938         struct bnx2x_sriov *iov;
1939         struct pci_dev *dev = bp->pdev;
1940
1941         bp->vfdb = NULL;
1942
1943         /* verify is pf */
1944         if (IS_VF(bp))
1945                 return 0;
1946
1947         /* verify sriov capability is present in configuration space */
1948         if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV))
1949                 return 0;
1950
1951         /* verify chip revision */
1952         if (CHIP_IS_E1x(bp))
1953                 return 0;
1954
1955         /* check if SRIOV support is turned off */
1956         if (!num_vfs_param)
1957                 return 0;
1958
1959         /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */
1960         if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) {
1961                 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n",
1962                           BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID);
1963                 return 0;
1964         }
1965
1966         /* SRIOV can be enabled only with MSIX */
1967         if (int_mode_param == BNX2X_INT_MODE_MSI ||
1968             int_mode_param == BNX2X_INT_MODE_INTX) {
1969                 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n");
1970                 return 0;
1971         }
1972
1973         err = -EIO;
1974         /* verify ari is enabled */
1975         if (!bnx2x_ari_enabled(bp->pdev)) {
1976                 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n");
1977                 return 0;
1978         }
1979
1980         /* verify igu is in normal mode */
1981         if (CHIP_INT_MODE_IS_BC(bp)) {
1982                 BNX2X_ERR("IGU not normal mode,  SRIOV can not be enabled\n");
1983                 return 0;
1984         }
1985
1986         /* allocate the vfs database */
1987         bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL);
1988         if (!bp->vfdb) {
1989                 BNX2X_ERR("failed to allocate vf database\n");
1990                 err = -ENOMEM;
1991                 goto failed;
1992         }
1993
1994         /* get the sriov info - Linux already collected all the pertinent
1995          * information, however the sriov structure is for the private use
1996          * of the pci module. Also we want this information regardless
1997          * of the hyper-visor.
1998          */
1999         iov = &(bp->vfdb->sriov);
2000         err = bnx2x_sriov_info(bp, iov);
2001         if (err)
2002                 goto failed;
2003
2004         /* SR-IOV capability was enabled but there are no VFs*/
2005         if (iov->total == 0)
2006                 goto failed;
2007
2008         iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param);
2009
2010         DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n",
2011            num_vfs_param, iov->nr_virtfn);
2012
2013         /* allocate the vf array */
2014         bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) *
2015                                 BNX2X_NR_VIRTFN(bp), GFP_KERNEL);
2016         if (!bp->vfdb->vfs) {
2017                 BNX2X_ERR("failed to allocate vf array\n");
2018                 err = -ENOMEM;
2019                 goto failed;
2020         }
2021
2022         /* Initial VF init - index and abs_vfid - nr_virtfn must be set */
2023         for_each_vf(bp, i) {
2024                 bnx2x_vf(bp, i, index) = i;
2025                 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i;
2026                 bnx2x_vf(bp, i, state) = VF_FREE;
2027                 INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head));
2028                 mutex_init(&bnx2x_vf(bp, i, op_mutex));
2029                 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE;
2030         }
2031
2032         /* re-read the IGU CAM for VFs - index and abs_vfid must be set */
2033         bnx2x_get_vf_igu_cam_info(bp);
2034
2035         /* allocate the queue arrays for all VFs */
2036         bp->vfdb->vfqs = kzalloc(
2037                 BNX2X_MAX_NUM_VF_QUEUES * sizeof(struct bnx2x_vf_queue),
2038                 GFP_KERNEL);
2039
2040         DP(BNX2X_MSG_IOV, "bp->vfdb->vfqs was %p\n", bp->vfdb->vfqs);
2041
2042         if (!bp->vfdb->vfqs) {
2043                 BNX2X_ERR("failed to allocate vf queue array\n");
2044                 err = -ENOMEM;
2045                 goto failed;
2046         }
2047
2048         return 0;
2049 failed:
2050         DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
2051         __bnx2x_iov_free_vfdb(bp);
2052         return err;
2053 }
2054
2055 void bnx2x_iov_remove_one(struct bnx2x *bp)
2056 {
2057         /* if SRIOV is not enabled there's nothing to do */
2058         if (!IS_SRIOV(bp))
2059                 return;
2060
2061         DP(BNX2X_MSG_IOV, "about to call disable sriov\n");
2062         pci_disable_sriov(bp->pdev);
2063         DP(BNX2X_MSG_IOV, "sriov disabled\n");
2064
2065         /* free vf database */
2066         __bnx2x_iov_free_vfdb(bp);
2067 }
2068
2069 void bnx2x_iov_free_mem(struct bnx2x *bp)
2070 {
2071         int i;
2072
2073         if (!IS_SRIOV(bp))
2074                 return;
2075
2076         /* free vfs hw contexts */
2077         for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2078                 struct hw_dma *cxt = &bp->vfdb->context[i];
2079                 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size);
2080         }
2081
2082         BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr,
2083                        BP_VFDB(bp)->sp_dma.mapping,
2084                        BP_VFDB(bp)->sp_dma.size);
2085
2086         BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr,
2087                        BP_VF_MBX_DMA(bp)->mapping,
2088                        BP_VF_MBX_DMA(bp)->size);
2089
2090         BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr,
2091                        BP_VF_BULLETIN_DMA(bp)->mapping,
2092                        BP_VF_BULLETIN_DMA(bp)->size);
2093 }
2094
2095 int bnx2x_iov_alloc_mem(struct bnx2x *bp)
2096 {
2097         size_t tot_size;
2098         int i, rc = 0;
2099
2100         if (!IS_SRIOV(bp))
2101                 return rc;
2102
2103         /* allocate vfs hw contexts */
2104         tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) *
2105                 BNX2X_CIDS_PER_VF * sizeof(union cdu_context);
2106
2107         for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2108                 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i);
2109                 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ);
2110
2111                 if (cxt->size) {
2112                         BNX2X_PCI_ALLOC(cxt->addr, &cxt->mapping, cxt->size);
2113                 } else {
2114                         cxt->addr = NULL;
2115                         cxt->mapping = 0;
2116                 }
2117                 tot_size -= cxt->size;
2118         }
2119
2120         /* allocate vfs ramrods dma memory - client_init and set_mac */
2121         tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp);
2122         BNX2X_PCI_ALLOC(BP_VFDB(bp)->sp_dma.addr, &BP_VFDB(bp)->sp_dma.mapping,
2123                         tot_size);
2124         BP_VFDB(bp)->sp_dma.size = tot_size;
2125
2126         /* allocate mailboxes */
2127         tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE;
2128         BNX2X_PCI_ALLOC(BP_VF_MBX_DMA(bp)->addr, &BP_VF_MBX_DMA(bp)->mapping,
2129                         tot_size);
2130         BP_VF_MBX_DMA(bp)->size = tot_size;
2131
2132         /* allocate local bulletin boards */
2133         tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE;
2134         BNX2X_PCI_ALLOC(BP_VF_BULLETIN_DMA(bp)->addr,
2135                         &BP_VF_BULLETIN_DMA(bp)->mapping, tot_size);
2136         BP_VF_BULLETIN_DMA(bp)->size = tot_size;
2137
2138         return 0;
2139
2140 alloc_mem_err:
2141         return -ENOMEM;
2142 }
2143
2144 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
2145                            struct bnx2x_vf_queue *q)
2146 {
2147         u8 cl_id = vfq_cl_id(vf, q);
2148         u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
2149         unsigned long q_type = 0;
2150
2151         set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
2152         set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
2153
2154         /* Queue State object */
2155         bnx2x_init_queue_obj(bp, &q->sp_obj,
2156                              cl_id, &q->cid, 1, func_id,
2157                              bnx2x_vf_sp(bp, vf, q_data),
2158                              bnx2x_vf_sp_map(bp, vf, q_data),
2159                              q_type);
2160
2161         DP(BNX2X_MSG_IOV,
2162            "initialized vf %d's queue object. func id set to %d. cid set to 0x%x\n",
2163            vf->abs_vfid, q->sp_obj.func_id, q->cid);
2164 }
2165
2166 /* called by bnx2x_nic_load */
2167 int bnx2x_iov_nic_init(struct bnx2x *bp)
2168 {
2169         int vfid;
2170
2171         if (!IS_SRIOV(bp)) {
2172                 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n");
2173                 return 0;
2174         }
2175
2176         DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn);
2177
2178         /* let FLR complete ... */
2179         msleep(100);
2180
2181         /* initialize vf database */
2182         for_each_vf(bp, vfid) {
2183                 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2184
2185                 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) *
2186                         BNX2X_CIDS_PER_VF;
2187
2188                 union cdu_context *base_cxt = (union cdu_context *)
2189                         BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2190                         (base_vf_cid & (ILT_PAGE_CIDS-1));
2191
2192                 DP(BNX2X_MSG_IOV,
2193                    "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n",
2194                    vf->abs_vfid, vf_sb_count(vf), base_vf_cid,
2195                    BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt);
2196
2197                 /* init statically provisioned resources */
2198                 bnx2x_iov_static_resc(bp, vf);
2199
2200                 /* queues are initialized during VF-ACQUIRE */
2201
2202                 /* reserve the vf vlan credit */
2203                 bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf));
2204
2205                 vf->filter_state = 0;
2206                 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id);
2207
2208                 /*  init mcast object - This object will be re-initialized
2209                  *  during VF-ACQUIRE with the proper cl_id and cid.
2210                  *  It needs to be initialized here so that it can be safely
2211                  *  handled by a subsequent FLR flow.
2212                  */
2213                 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF,
2214                                      0xFF, 0xFF, 0xFF,
2215                                      bnx2x_vf_sp(bp, vf, mcast_rdata),
2216                                      bnx2x_vf_sp_map(bp, vf, mcast_rdata),
2217                                      BNX2X_FILTER_MCAST_PENDING,
2218                                      &vf->filter_state,
2219                                      BNX2X_OBJ_TYPE_RX_TX);
2220
2221                 /* set the mailbox message addresses */
2222                 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *)
2223                         (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid *
2224                         MBX_MSG_ALIGNED_SIZE);
2225
2226                 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping +
2227                         vfid * MBX_MSG_ALIGNED_SIZE;
2228
2229                 /* Enable vf mailbox */
2230                 bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
2231         }
2232
2233         /* Final VF init */
2234         for_each_vf(bp, vfid) {
2235                 struct bnx2x_virtf *vf = BP_VF(bp, vfid);
2236
2237                 /* fill in the BDF and bars */
2238                 vf->bus = bnx2x_vf_bus(bp, vfid);
2239                 vf->devfn = bnx2x_vf_devfn(bp, vfid);
2240                 bnx2x_vf_set_bars(bp, vf);
2241
2242                 DP(BNX2X_MSG_IOV,
2243                    "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n",
2244                    vf->abs_vfid, vf->bus, vf->devfn,
2245                    (unsigned)vf->bars[0].bar, vf->bars[0].size,
2246                    (unsigned)vf->bars[1].bar, vf->bars[1].size,
2247                    (unsigned)vf->bars[2].bar, vf->bars[2].size);
2248         }
2249
2250         return 0;
2251 }
2252
2253 /* called by bnx2x_chip_cleanup */
2254 int bnx2x_iov_chip_cleanup(struct bnx2x *bp)
2255 {
2256         int i;
2257
2258         if (!IS_SRIOV(bp))
2259                 return 0;
2260
2261         /* release all the VFs */
2262         for_each_vf(bp, i)
2263                 bnx2x_vf_release(bp, BP_VF(bp, i), true); /* blocking */
2264
2265         return 0;
2266 }
2267
2268 /* called by bnx2x_init_hw_func, returns the next ilt line */
2269 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line)
2270 {
2271         int i;
2272         struct bnx2x_ilt *ilt = BP_ILT(bp);
2273
2274         if (!IS_SRIOV(bp))
2275                 return line;
2276
2277         /* set vfs ilt lines */
2278         for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
2279                 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i);
2280
2281                 ilt->lines[line+i].page = hw_cxt->addr;
2282                 ilt->lines[line+i].page_mapping = hw_cxt->mapping;
2283                 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */
2284         }
2285         return line + i;
2286 }
2287
2288 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid)
2289 {
2290         return ((cid >= BNX2X_FIRST_VF_CID) &&
2291                 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS));
2292 }
2293
2294 static
2295 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp,
2296                                         struct bnx2x_vf_queue *vfq,
2297                                         union event_ring_elem *elem)
2298 {
2299         unsigned long ramrod_flags = 0;
2300         int rc = 0;
2301
2302         /* Always push next commands out, don't wait here */
2303         set_bit(RAMROD_CONT, &ramrod_flags);
2304
2305         switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) {
2306         case BNX2X_FILTER_MAC_PENDING:
2307                 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem,
2308                                            &ramrod_flags);
2309                 break;
2310         case BNX2X_FILTER_VLAN_PENDING:
2311                 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem,
2312                                             &ramrod_flags);
2313                 break;
2314         default:
2315                 BNX2X_ERR("Unsupported classification command: %d\n",
2316                           elem->message.data.eth_event.echo);
2317                 return;
2318         }
2319         if (rc < 0)
2320                 BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
2321         else if (rc > 0)
2322                 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n");
2323 }
2324
2325 static
2326 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp,
2327                                struct bnx2x_virtf *vf)
2328 {
2329         struct bnx2x_mcast_ramrod_params rparam = {NULL};
2330         int rc;
2331
2332         rparam.mcast_obj = &vf->mcast_obj;
2333         vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw);
2334
2335         /* If there are pending mcast commands - send them */
2336         if (vf->mcast_obj.check_pending(&vf->mcast_obj)) {
2337                 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
2338                 if (rc < 0)
2339                         BNX2X_ERR("Failed to send pending mcast commands: %d\n",
2340                                   rc);
2341         }
2342 }
2343
2344 static
2345 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp,
2346                                  struct bnx2x_virtf *vf)
2347 {
2348         smp_mb__before_clear_bit();
2349         clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
2350         smp_mb__after_clear_bit();
2351 }
2352
2353 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
2354 {
2355         struct bnx2x_virtf *vf;
2356         int qidx = 0, abs_vfid;
2357         u8 opcode;
2358         u16 cid = 0xffff;
2359
2360         if (!IS_SRIOV(bp))
2361                 return 1;
2362
2363         /* first get the cid - the only events we handle here are cfc-delete
2364          * and set-mac completion
2365          */
2366         opcode = elem->message.opcode;
2367
2368         switch (opcode) {
2369         case EVENT_RING_OPCODE_CFC_DEL:
2370                 cid = SW_CID((__force __le32)
2371                              elem->message.data.cfc_del_event.cid);
2372                 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid);
2373                 break;
2374         case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2375         case EVENT_RING_OPCODE_MULTICAST_RULES:
2376         case EVENT_RING_OPCODE_FILTERS_RULES:
2377                 cid = (elem->message.data.eth_event.echo &
2378                        BNX2X_SWCID_MASK);
2379                 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid);
2380                 break;
2381         case EVENT_RING_OPCODE_VF_FLR:
2382                 abs_vfid = elem->message.data.vf_flr_event.vf_id;
2383                 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n",
2384                    abs_vfid);
2385                 goto get_vf;
2386         case EVENT_RING_OPCODE_MALICIOUS_VF:
2387                 abs_vfid = elem->message.data.malicious_vf_event.vf_id;
2388                 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
2389                    abs_vfid, elem->message.data.malicious_vf_event.err_id);
2390                 goto get_vf;
2391         default:
2392                 return 1;
2393         }
2394
2395         /* check if the cid is the VF range */
2396         if (!bnx2x_iov_is_vf_cid(bp, cid)) {
2397                 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid);
2398                 return 1;
2399         }
2400
2401         /* extract vf and rxq index from vf_cid - relies on the following:
2402          * 1. vfid on cid reflects the true abs_vfid
2403          * 2. The max number of VFs (per path) is 64
2404          */
2405         qidx = cid & ((1 << BNX2X_VF_CID_WND)-1);
2406         abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2407 get_vf:
2408         vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
2409
2410         if (!vf) {
2411                 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n",
2412                           cid, abs_vfid);
2413                 return 0;
2414         }
2415
2416         switch (opcode) {
2417         case EVENT_RING_OPCODE_CFC_DEL:
2418                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n",
2419                    vf->abs_vfid, qidx);
2420                 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp,
2421                                                        &vfq_get(vf,
2422                                                                 qidx)->sp_obj,
2423                                                        BNX2X_Q_CMD_CFC_DEL);
2424                 break;
2425         case EVENT_RING_OPCODE_CLASSIFICATION_RULES:
2426                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n",
2427                    vf->abs_vfid, qidx);
2428                 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem);
2429                 break;
2430         case EVENT_RING_OPCODE_MULTICAST_RULES:
2431                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n",
2432                    vf->abs_vfid, qidx);
2433                 bnx2x_vf_handle_mcast_eqe(bp, vf);
2434                 break;
2435         case EVENT_RING_OPCODE_FILTERS_RULES:
2436                 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n",
2437                    vf->abs_vfid, qidx);
2438                 bnx2x_vf_handle_filters_eqe(bp, vf);
2439                 break;
2440         case EVENT_RING_OPCODE_VF_FLR:
2441                 DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n",
2442                    vf->abs_vfid);
2443                 /* Do nothing for now */
2444                 break;
2445         case EVENT_RING_OPCODE_MALICIOUS_VF:
2446                 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d error id %x\n",
2447                    abs_vfid, elem->message.data.malicious_vf_event.err_id);
2448                 /* Do nothing for now */
2449                 break;
2450         }
2451         /* SRIOV: reschedule any 'in_progress' operations */
2452         bnx2x_iov_sp_event(bp, cid, false);
2453
2454         return 0;
2455 }
2456
2457 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid)
2458 {
2459         /* extract the vf from vf_cid - relies on the following:
2460          * 1. vfid on cid reflects the true abs_vfid
2461          * 2. The max number of VFs (per path) is 64
2462          */
2463         int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
2464         return bnx2x_vf_by_abs_fid(bp, abs_vfid);
2465 }
2466
2467 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
2468                                 struct bnx2x_queue_sp_obj **q_obj)
2469 {
2470         struct bnx2x_virtf *vf;
2471
2472         if (!IS_SRIOV(bp))
2473                 return;
2474
2475         vf = bnx2x_vf_by_cid(bp, vf_cid);
2476
2477         if (vf) {
2478                 /* extract queue index from vf_cid - relies on the following:
2479                  * 1. vfid on cid reflects the true abs_vfid
2480                  * 2. The max number of VFs (per path) is 64
2481                  */
2482                 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1);
2483                 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj);
2484         } else {
2485                 BNX2X_ERR("No vf matching cid %d\n", vf_cid);
2486         }
2487 }
2488
2489 void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work)
2490 {
2491         struct bnx2x_virtf *vf;
2492
2493         /* check if the cid is the VF range */
2494         if (!IS_SRIOV(bp) || !bnx2x_iov_is_vf_cid(bp, vf_cid))
2495                 return;
2496
2497         vf = bnx2x_vf_by_cid(bp, vf_cid);
2498         if (vf) {
2499                 /* set in_progress flag */
2500                 atomic_set(&vf->op_in_progress, 1);
2501                 if (queue_work)
2502                         queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
2503         }
2504 }
2505
2506 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp)
2507 {
2508         int i;
2509         int first_queue_query_index, num_queues_req;
2510         dma_addr_t cur_data_offset;
2511         struct stats_query_entry *cur_query_entry;
2512         u8 stats_count = 0;
2513         bool is_fcoe = false;
2514
2515         if (!IS_SRIOV(bp))
2516                 return;
2517
2518         if (!NO_FCOE(bp))
2519                 is_fcoe = true;
2520
2521         /* fcoe adds one global request and one queue request */
2522         num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe;
2523         first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX -
2524                 (is_fcoe ? 0 : 1);
2525
2526         DP(BNX2X_MSG_IOV,
2527            "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",
2528            BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index,
2529            first_queue_query_index + num_queues_req);
2530
2531         cur_data_offset = bp->fw_stats_data_mapping +
2532                 offsetof(struct bnx2x_fw_stats_data, queue_stats) +
2533                 num_queues_req * sizeof(struct per_queue_stats);
2534
2535         cur_query_entry = &bp->fw_stats_req->
2536                 query[first_queue_query_index + num_queues_req];
2537
2538         for_each_vf(bp, i) {
2539                 int j;
2540                 struct bnx2x_virtf *vf = BP_VF(bp, i);
2541
2542                 if (vf->state != VF_ENABLED) {
2543                         DP(BNX2X_MSG_IOV,
2544                            "vf %d not enabled so no stats for it\n",
2545                            vf->abs_vfid);
2546                         continue;
2547                 }
2548
2549                 DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid);
2550                 for_each_vfq(vf, j) {
2551                         struct bnx2x_vf_queue *rxq = vfq_get(vf, j);
2552
2553                         dma_addr_t q_stats_addr =
2554                                 vf->fw_stat_map + j * vf->stats_stride;
2555
2556                         /* collect stats fro active queues only */
2557                         if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) ==
2558                             BNX2X_Q_LOGICAL_STATE_STOPPED)
2559                                 continue;
2560
2561                         /* create stats query entry for this queue */
2562                         cur_query_entry->kind = STATS_TYPE_QUEUE;
2563                         cur_query_entry->index = vfq_stat_id(vf, rxq);
2564                         cur_query_entry->funcID =
2565                                 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid));
2566                         cur_query_entry->address.hi =
2567                                 cpu_to_le32(U64_HI(q_stats_addr));
2568                         cur_query_entry->address.lo =
2569                                 cpu_to_le32(U64_LO(q_stats_addr));
2570                         DP(BNX2X_MSG_IOV,
2571                            "added address %x %x for vf %d queue %d client %d\n",
2572                            cur_query_entry->address.hi,
2573                            cur_query_entry->address.lo, cur_query_entry->funcID,
2574                            j, cur_query_entry->index);
2575                         cur_query_entry++;
2576                         cur_data_offset += sizeof(struct per_queue_stats);
2577                         stats_count++;
2578
2579                         /* all stats are coalesced to the leading queue */
2580                         if (vf->cfg_flags & VF_CFG_STATS_COALESCE)
2581                                 break;
2582                 }
2583         }
2584         bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count;
2585 }
2586
2587 void bnx2x_iov_sp_task(struct bnx2x *bp)
2588 {
2589         int i;
2590
2591         if (!IS_SRIOV(bp))
2592                 return;
2593         /* Iterate over all VFs and invoke state transition for VFs with
2594          * 'in-progress' slow-path operations
2595          */
2596         DP(BNX2X_MSG_IOV, "searching for pending vf operations\n");
2597         for_each_vf(bp, i) {
2598                 struct bnx2x_virtf *vf = BP_VF(bp, i);
2599
2600                 if (!vf) {
2601                         BNX2X_ERR("VF was null! skipping...\n");
2602                         continue;
2603                 }
2604
2605                 if (!list_empty(&vf->op_list_head) &&
2606                     atomic_read(&vf->op_in_progress)) {
2607                         DP(BNX2X_MSG_IOV, "running pending op for vf %d\n", i);
2608                         bnx2x_vfop_cur(bp, vf)->transition(bp, vf);
2609                 }
2610         }
2611 }
2612
2613 static inline
2614 struct bnx2x_virtf *__vf_from_stat_id(struct bnx2x *bp, u8 stat_id)
2615 {
2616         int i;
2617         struct bnx2x_virtf *vf = NULL;
2618
2619         for_each_vf(bp, i) {
2620                 vf = BP_VF(bp, i);
2621                 if (stat_id >= vf->igu_base_id &&
2622                     stat_id < vf->igu_base_id + vf_sb_count(vf))
2623                         break;
2624         }
2625         return vf;
2626 }
2627
2628 /* VF API helpers */
2629 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid,
2630                                 u8 enable)
2631 {
2632         u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4;
2633         u32 val = enable ? (abs_vfid | (1 << 6)) : 0;
2634
2635         REG_WR(bp, reg, val);
2636 }
2637
2638 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf)
2639 {
2640         int i;
2641
2642         for_each_vfq(vf, i)
2643                 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2644                                     vfq_qzone_id(vf, vfq_get(vf, i)), false);
2645 }
2646
2647 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf)
2648 {
2649         u32 val;
2650
2651         /* clear the VF configuration - pretend */
2652         bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
2653         val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
2654         val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN |
2655                  IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK);
2656         REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
2657         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
2658 }
2659
2660 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf)
2661 {
2662         return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF),
2663                      BNX2X_VF_MAX_QUEUES);
2664 }
2665
2666 static
2667 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf,
2668                             struct vf_pf_resc_request *req_resc)
2669 {
2670         u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2671         u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
2672
2673         return ((req_resc->num_rxqs <= rxq_cnt) &&
2674                 (req_resc->num_txqs <= txq_cnt) &&
2675                 (req_resc->num_sbs <= vf_sb_count(vf))   &&
2676                 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) &&
2677                 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf)));
2678 }
2679
2680 /* CORE VF API */
2681 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
2682                      struct vf_pf_resc_request *resc)
2683 {
2684         int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) *
2685                 BNX2X_CIDS_PER_VF;
2686
2687         union cdu_context *base_cxt = (union cdu_context *)
2688                 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr +
2689                 (base_vf_cid & (ILT_PAGE_CIDS-1));
2690         int i;
2691
2692         /* if state is 'acquired' the VF was not released or FLR'd, in
2693          * this case the returned resources match the acquired already
2694          * acquired resources. Verify that the requested numbers do
2695          * not exceed the already acquired numbers.
2696          */
2697         if (vf->state == VF_ACQUIRED) {
2698                 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n",
2699                    vf->abs_vfid);
2700
2701                 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2702                         BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n",
2703                                   vf->abs_vfid);
2704                         return -EINVAL;
2705                 }
2706                 return 0;
2707         }
2708
2709         /* Otherwise vf state must be 'free' or 'reset' */
2710         if (vf->state != VF_FREE && vf->state != VF_RESET) {
2711                 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n",
2712                           vf->abs_vfid, vf->state);
2713                 return -EINVAL;
2714         }
2715
2716         /* static allocation:
2717          * the global maximum number are fixed per VF. Fail the request if
2718          * requested number exceed these globals
2719          */
2720         if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
2721                 DP(BNX2X_MSG_IOV,
2722                    "cannot fulfill vf resource request. Placing maximal available values in response\n");
2723                 /* set the max resource in the vf */
2724                 return -ENOMEM;
2725         }
2726
2727         /* Set resources counters - 0 request means max available */
2728         vf_sb_count(vf) = resc->num_sbs;
2729         vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2730         vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
2731         if (resc->num_mac_filters)
2732                 vf_mac_rules_cnt(vf) = resc->num_mac_filters;
2733         if (resc->num_vlan_filters)
2734                 vf_vlan_rules_cnt(vf) = resc->num_vlan_filters;
2735
2736         DP(BNX2X_MSG_IOV,
2737            "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n",
2738            vf_sb_count(vf), vf_rxq_count(vf),
2739            vf_txq_count(vf), vf_mac_rules_cnt(vf),
2740            vf_vlan_rules_cnt(vf));
2741
2742         /* Initialize the queues */
2743         if (!vf->vfqs) {
2744                 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n");
2745                 return -EINVAL;
2746         }
2747
2748         for_each_vfq(vf, i) {
2749                 struct bnx2x_vf_queue *q = vfq_get(vf, i);
2750
2751                 if (!q) {
2752                         BNX2X_ERR("q number %d was not allocated\n", i);
2753                         return -EINVAL;
2754                 }
2755
2756                 q->index = i;
2757                 q->cxt = &((base_cxt + i)->eth);
2758                 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i;
2759
2760                 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n",
2761                    vf->abs_vfid, i, q->index, q->cid, q->cxt);
2762
2763                 /* init SP objects */
2764                 bnx2x_vfq_init(bp, vf, q);
2765         }
2766         vf->state = VF_ACQUIRED;
2767         return 0;
2768 }
2769
2770 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map)
2771 {
2772         struct bnx2x_func_init_params func_init = {0};
2773         u16 flags = 0;
2774         int i;
2775
2776         /* the sb resources are initialized at this point, do the
2777          * FW/HW initializations
2778          */
2779         for_each_vf_sb(vf, i)
2780                 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true,
2781                               vf_igu_sb(vf, i), vf_igu_sb(vf, i));
2782
2783         /* Sanity checks */
2784         if (vf->state != VF_ACQUIRED) {
2785                 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n",
2786                    vf->abs_vfid, vf->state);
2787                 return -EINVAL;
2788         }
2789
2790         /* let FLR complete ... */
2791         msleep(100);
2792
2793         /* FLR cleanup epilogue */
2794         if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid))
2795                 return -EBUSY;
2796
2797         /* reset IGU VF statistics: MSIX */
2798         REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0);
2799
2800         /* vf init */
2801         if (vf->cfg_flags & VF_CFG_STATS)
2802                 flags |= (FUNC_FLG_STATS | FUNC_FLG_SPQ);
2803
2804         if (vf->cfg_flags & VF_CFG_TPA)
2805                 flags |= FUNC_FLG_TPA;
2806
2807         if (is_vf_multi(vf))
2808                 flags |= FUNC_FLG_RSS;
2809
2810         /* function setup */
2811         func_init.func_flgs = flags;
2812         func_init.pf_id = BP_FUNC(bp);
2813         func_init.func_id = FW_VF_HANDLE(vf->abs_vfid);
2814         func_init.fw_stat_map = vf->fw_stat_map;
2815         func_init.spq_map = vf->spq_map;
2816         func_init.spq_prod = 0;
2817         bnx2x_func_init(bp, &func_init);
2818
2819         /* Enable the vf */
2820         bnx2x_vf_enable_access(bp, vf->abs_vfid);
2821         bnx2x_vf_enable_traffic(bp, vf);
2822
2823         /* queue protection table */
2824         for_each_vfq(vf, i)
2825                 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid,
2826                                     vfq_qzone_id(vf, vfq_get(vf, i)), true);
2827
2828         vf->state = VF_ENABLED;
2829
2830         /* update vf bulletin board */
2831         bnx2x_post_vf_bulletin(bp, vf->index);
2832
2833         return 0;
2834 }
2835
2836 /* VFOP close (teardown the queues, delete mcasts and close HW) */
2837 static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
2838 {
2839         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2840         struct bnx2x_vfop_args_qx *qx = &vfop->args.qx;
2841         enum bnx2x_vfop_close_state state = vfop->state;
2842         struct bnx2x_vfop_cmd cmd = {
2843                 .done = bnx2x_vfop_close,
2844                 .block = false,
2845         };
2846
2847         if (vfop->rc < 0)
2848                 goto op_err;
2849
2850         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2851
2852         switch (state) {
2853         case BNX2X_VFOP_CLOSE_QUEUES:
2854
2855                 if (++(qx->qid) < vf_rxq_count(vf)) {
2856                         vfop->rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qx->qid);
2857                         if (vfop->rc)
2858                                 goto op_err;
2859                         return;
2860                 }
2861
2862                 /* remove multicasts */
2863                 vfop->state = BNX2X_VFOP_CLOSE_HW;
2864                 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false);
2865                 if (vfop->rc)
2866                         goto op_err;
2867                 return;
2868
2869         case BNX2X_VFOP_CLOSE_HW:
2870
2871                 /* disable the interrupts */
2872                 DP(BNX2X_MSG_IOV, "disabling igu\n");
2873                 bnx2x_vf_igu_disable(bp, vf);
2874
2875                 /* disable the VF */
2876                 DP(BNX2X_MSG_IOV, "clearing qtbl\n");
2877                 bnx2x_vf_clr_qtbl(bp, vf);
2878
2879                 goto op_done;
2880         default:
2881                 bnx2x_vfop_default(state);
2882         }
2883 op_err:
2884         BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc);
2885 op_done:
2886         vf->state = VF_ACQUIRED;
2887         DP(BNX2X_MSG_IOV, "set state to acquired\n");
2888         bnx2x_vfop_end(bp, vf, vfop);
2889 }
2890
2891 int bnx2x_vfop_close_cmd(struct bnx2x *bp,
2892                          struct bnx2x_virtf *vf,
2893                          struct bnx2x_vfop_cmd *cmd)
2894 {
2895         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2896         if (vfop) {
2897                 vfop->args.qx.qid = -1; /* loop */
2898                 bnx2x_vfop_opset(BNX2X_VFOP_CLOSE_QUEUES,
2899                                  bnx2x_vfop_close, cmd->done);
2900                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_close,
2901                                              cmd->block);
2902         }
2903         return -ENOMEM;
2904 }
2905
2906 /* VF release can be called either: 1. The VF was acquired but
2907  * not enabled 2. the vf was enabled or in the process of being
2908  * enabled
2909  */
2910 static void bnx2x_vfop_release(struct bnx2x *bp, struct bnx2x_virtf *vf)
2911 {
2912         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2913         struct bnx2x_vfop_cmd cmd = {
2914                 .done = bnx2x_vfop_release,
2915                 .block = false,
2916         };
2917
2918         DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2919
2920         if (vfop->rc < 0)
2921                 goto op_err;
2922
2923         DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid,
2924            vf->state == VF_FREE ? "Free" :
2925            vf->state == VF_ACQUIRED ? "Acquired" :
2926            vf->state == VF_ENABLED ? "Enabled" :
2927            vf->state == VF_RESET ? "Reset" :
2928            "Unknown");
2929
2930         switch (vf->state) {
2931         case VF_ENABLED:
2932                 vfop->rc = bnx2x_vfop_close_cmd(bp, vf, &cmd);
2933                 if (vfop->rc)
2934                         goto op_err;
2935                 return;
2936
2937         case VF_ACQUIRED:
2938                 DP(BNX2X_MSG_IOV, "about to free resources\n");
2939                 bnx2x_vf_free_resc(bp, vf);
2940                 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc);
2941                 goto op_done;
2942
2943         case VF_FREE:
2944         case VF_RESET:
2945                 /* do nothing */
2946                 goto op_done;
2947         default:
2948                 bnx2x_vfop_default(vf->state);
2949         }
2950 op_err:
2951         BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, vfop->rc);
2952 op_done:
2953         bnx2x_vfop_end(bp, vf, vfop);
2954 }
2955
2956 static void bnx2x_vfop_rss(struct bnx2x *bp, struct bnx2x_virtf *vf)
2957 {
2958         struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
2959         enum bnx2x_vfop_rss_state state;
2960
2961         if (!vfop) {
2962                 BNX2X_ERR("vfop was null\n");
2963                 return;
2964         }
2965
2966         state = vfop->state;
2967         bnx2x_vfop_reset_wq(vf);
2968
2969         if (vfop->rc < 0)
2970                 goto op_err;
2971
2972         DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state);
2973
2974         switch (state) {
2975         case BNX2X_VFOP_RSS_CONFIG:
2976                 /* next state */
2977                 vfop->state = BNX2X_VFOP_RSS_DONE;
2978                 bnx2x_config_rss(bp, &vfop->op_p->rss);
2979                 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
2980 op_err:
2981                 BNX2X_ERR("RSS error: rc %d\n", vfop->rc);
2982 op_done:
2983         case BNX2X_VFOP_RSS_DONE:
2984                 bnx2x_vfop_end(bp, vf, vfop);
2985                 return;
2986         default:
2987                 bnx2x_vfop_default(state);
2988         }
2989 op_pending:
2990         return;
2991 }
2992
2993 int bnx2x_vfop_release_cmd(struct bnx2x *bp,
2994                            struct bnx2x_virtf *vf,
2995                            struct bnx2x_vfop_cmd *cmd)
2996 {
2997         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
2998         if (vfop) {
2999                 bnx2x_vfop_opset(-1, /* use vf->state */
3000                                  bnx2x_vfop_release, cmd->done);
3001                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_release,
3002                                              cmd->block);
3003         }
3004         return -ENOMEM;
3005 }
3006
3007 int bnx2x_vfop_rss_cmd(struct bnx2x *bp,
3008                        struct bnx2x_virtf *vf,
3009                        struct bnx2x_vfop_cmd *cmd)
3010 {
3011         struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
3012
3013         if (vfop) {
3014                 bnx2x_vfop_opset(BNX2X_VFOP_RSS_CONFIG, bnx2x_vfop_rss,
3015                                  cmd->done);
3016                 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rss,
3017                                              cmd->block);
3018         }
3019         return -ENOMEM;
3020 }
3021
3022 /* VF release ~ VF close + VF release-resources
3023  * Release is the ultimate SW shutdown and is called whenever an
3024  * irrecoverable error is encountered.
3025  */
3026 void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block)
3027 {
3028         struct bnx2x_vfop_cmd cmd = {
3029                 .done = NULL,
3030                 .block = block,
3031         };
3032         int rc;
3033
3034         DP(BNX2X_MSG_IOV, "PF releasing vf %d\n", vf->abs_vfid);
3035         bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
3036
3037         rc = bnx2x_vfop_release_cmd(bp, vf, &cmd);
3038         if (rc)
3039                 WARN(rc,
3040                      "VF[%d] Failed to allocate resources for release op- rc=%d\n",
3041                      vf->abs_vfid, rc);
3042 }
3043
3044 static inline void bnx2x_vf_get_sbdf(struct bnx2x *bp,
3045                               struct bnx2x_virtf *vf, u32 *sbdf)
3046 {
3047         *sbdf = vf->devfn | (vf->bus << 8);
3048 }
3049
3050 static inline void bnx2x_vf_get_bars(struct bnx2x *bp, struct bnx2x_virtf *vf,
3051                        struct bnx2x_vf_bar_info *bar_info)
3052 {
3053         int n;
3054
3055         bar_info->nr_bars = bp->vfdb->sriov.nres;
3056         for (n = 0; n < bar_info->nr_bars; n++)
3057                 bar_info->bars[n] = vf->bars[n];
3058 }
3059
3060 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3061                               enum channel_tlvs tlv)
3062 {
3063         /* we don't lock the channel for unsupported tlvs */
3064         if (!bnx2x_tlv_supported(tlv)) {
3065                 BNX2X_ERR("attempting to lock with unsupported tlv. Aborting\n");
3066                 return;
3067         }
3068
3069         /* lock the channel */
3070         mutex_lock(&vf->op_mutex);
3071
3072         /* record the locking op */
3073         vf->op_current = tlv;
3074
3075         /* log the lock */
3076         DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n",
3077            vf->abs_vfid, tlv);
3078 }
3079
3080 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
3081                                 enum channel_tlvs expected_tlv)
3082 {
3083         enum channel_tlvs current_tlv;
3084
3085         if (!vf) {
3086                 BNX2X_ERR("VF was %p\n", vf);
3087                 return;
3088         }
3089
3090         current_tlv = vf->op_current;
3091
3092         /* we don't unlock the channel for unsupported tlvs */
3093         if (!bnx2x_tlv_supported(expected_tlv))
3094                 return;
3095
3096         WARN(expected_tlv != vf->op_current,
3097              "lock mismatch: expected %d found %d", expected_tlv,
3098              vf->op_current);
3099
3100         /* record the locking op */
3101         vf->op_current = CHANNEL_TLV_NONE;
3102
3103         /* lock the channel */
3104         mutex_unlock(&vf->op_mutex);
3105
3106         /* log the unlock */
3107         DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n",
3108            vf->abs_vfid, vf->op_current);
3109 }
3110
3111 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
3112 {
3113         struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
3114
3115         DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
3116            num_vfs_param, BNX2X_NR_VIRTFN(bp));
3117
3118         /* HW channel is only operational when PF is up */
3119         if (bp->state != BNX2X_STATE_OPEN) {
3120                 BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n");
3121                 return -EINVAL;
3122         }
3123
3124         /* we are always bound by the total_vfs in the configuration space */
3125         if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) {
3126                 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n",
3127                           num_vfs_param, BNX2X_NR_VIRTFN(bp));
3128                 num_vfs_param = BNX2X_NR_VIRTFN(bp);
3129         }
3130
3131         bp->requested_nr_virtfn = num_vfs_param;
3132         if (num_vfs_param == 0) {
3133                 pci_disable_sriov(dev);
3134                 return 0;
3135         } else {
3136                 return bnx2x_enable_sriov(bp);
3137         }
3138 }
3139 #define IGU_ENTRY_SIZE 4
3140
3141 int bnx2x_enable_sriov(struct bnx2x *bp)
3142 {
3143         int rc = 0, req_vfs = bp->requested_nr_virtfn;
3144         int vf_idx, sb_idx, vfq_idx, qcount, first_vf;
3145         u32 igu_entry, address;
3146         u16 num_vf_queues;
3147
3148         if (req_vfs == 0)
3149                 return 0;
3150
3151         first_vf = bp->vfdb->sriov.first_vf_in_pf;
3152
3153         /* statically distribute vf sb pool between VFs */
3154         num_vf_queues = min_t(u16, BNX2X_VF_MAX_QUEUES,
3155                               BP_VFDB(bp)->vf_sbs_pool / req_vfs);
3156
3157         /* zero previous values learned from igu cam */
3158         for (vf_idx = 0; vf_idx < req_vfs; vf_idx++) {
3159                 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
3160
3161                 vf->sb_count = 0;
3162                 vf_sb_count(BP_VF(bp, vf_idx)) = 0;
3163         }
3164         bp->vfdb->vf_sbs_pool = 0;
3165
3166         /* prepare IGU cam */
3167         sb_idx = BP_VFDB(bp)->first_vf_igu_entry;
3168         address = IGU_REG_MAPPING_MEMORY + sb_idx * IGU_ENTRY_SIZE;
3169         for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
3170                 for (vfq_idx = 0; vfq_idx < num_vf_queues; vfq_idx++) {
3171                         igu_entry = vf_idx << IGU_REG_MAPPING_MEMORY_FID_SHIFT |
3172                                 vfq_idx << IGU_REG_MAPPING_MEMORY_VECTOR_SHIFT |
3173                                 IGU_REG_MAPPING_MEMORY_VALID;
3174                         DP(BNX2X_MSG_IOV, "assigning sb %d to vf %d\n",
3175                            sb_idx, vf_idx);
3176                         REG_WR(bp, address, igu_entry);
3177                         sb_idx++;
3178                         address += IGU_ENTRY_SIZE;
3179                 }
3180         }
3181
3182         /* Reinitialize vf database according to igu cam */
3183         bnx2x_get_vf_igu_cam_info(bp);
3184
3185         DP(BNX2X_MSG_IOV, "vf_sbs_pool %d, num_vf_queues %d\n",
3186            BP_VFDB(bp)->vf_sbs_pool, num_vf_queues);
3187
3188         qcount = 0;
3189         for_each_vf(bp, vf_idx) {
3190                 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
3191
3192                 /* set local queue arrays */
3193                 vf->vfqs = &bp->vfdb->vfqs[qcount];
3194                 qcount += vf_sb_count(vf);
3195         }
3196
3197         /* prepare msix vectors in VF configuration space */
3198         for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) {
3199                 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx));
3200                 REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL,
3201                        num_vf_queues);
3202         }
3203         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
3204
3205         /* enable sriov. This will probe all the VFs, and consequentially cause
3206          * the "acquire" messages to appear on the VF PF channel.
3207          */
3208         DP(BNX2X_MSG_IOV, "about to call enable sriov\n");
3209         pci_disable_sriov(bp->pdev);
3210         rc = pci_enable_sriov(bp->pdev, req_vfs);
3211         if (rc) {
3212                 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
3213                 return rc;
3214         }
3215         DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs);
3216         return req_vfs;
3217 }
3218
3219 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp)
3220 {
3221         int vfidx;
3222         struct pf_vf_bulletin_content *bulletin;
3223
3224         DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n");
3225         for_each_vf(bp, vfidx) {
3226         bulletin = BP_VF_BULLETIN(bp, vfidx);
3227                 if (BP_VF(bp, vfidx)->cfg_flags & VF_CFG_VLAN)
3228                         bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0);
3229         }
3230 }
3231
3232 void bnx2x_disable_sriov(struct bnx2x *bp)
3233 {
3234         pci_disable_sriov(bp->pdev);
3235 }
3236
3237 int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx, struct bnx2x_virtf **vf,
3238                         struct pf_vf_bulletin_content **bulletin)
3239 {
3240         if (bp->state != BNX2X_STATE_OPEN) {
3241                 BNX2X_ERR("vf ndo called though PF is down\n");
3242                 return -EINVAL;
3243         }
3244
3245         if (!IS_SRIOV(bp)) {
3246                 BNX2X_ERR("vf ndo called though sriov is disabled\n");
3247                 return -EINVAL;
3248         }
3249
3250         if (vfidx >= BNX2X_NR_VIRTFN(bp)) {
3251                 BNX2X_ERR("vf ndo called for uninitialized VF. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
3252                           vfidx, BNX2X_NR_VIRTFN(bp));
3253                 return -EINVAL;
3254         }
3255
3256         /* init members */
3257         *vf = BP_VF(bp, vfidx);
3258         *bulletin = BP_VF_BULLETIN(bp, vfidx);
3259
3260         if (!*vf) {
3261                 BNX2X_ERR("vf ndo called but vf struct is null. vfidx was %d\n",
3262                           vfidx);
3263                 return -EINVAL;
3264         }
3265
3266         if (!(*vf)->vfqs) {
3267                 BNX2X_ERR("vf ndo called but vfqs struct is null. Was ndo invoked before dynamically enabling SR-IOV? vfidx was %d\n",
3268                           vfidx);
3269                 return -EINVAL;
3270         }
3271
3272         if (!*bulletin) {
3273                 BNX2X_ERR("vf ndo called but Bulletin Board struct is null. vfidx was %d\n",
3274                           vfidx);
3275                 return -EINVAL;
3276         }
3277
3278         return 0;
3279 }
3280
3281 int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
3282                         struct ifla_vf_info *ivi)
3283 {
3284         struct bnx2x *bp = netdev_priv(dev);
3285         struct bnx2x_virtf *vf = NULL;
3286         struct pf_vf_bulletin_content *bulletin = NULL;
3287         struct bnx2x_vlan_mac_obj *mac_obj;
3288         struct bnx2x_vlan_mac_obj *vlan_obj;
3289         int rc;
3290
3291         /* sanity and init */
3292         rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3293         if (rc)
3294                 return rc;
3295         mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
3296         vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
3297         if (!mac_obj || !vlan_obj) {
3298                 BNX2X_ERR("VF partially initialized\n");
3299                 return -EINVAL;
3300         }
3301
3302         ivi->vf = vfidx;
3303         ivi->qos = 0;
3304         ivi->tx_rate = 10000; /* always 10G. TBA take from link struct */
3305         ivi->spoofchk = 1; /*always enabled */
3306         if (vf->state == VF_ENABLED) {
3307                 /* mac and vlan are in vlan_mac objects */
3308                 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj)))
3309                         mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac,
3310                                                 0, ETH_ALEN);
3311                 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, vlan_obj)))
3312                         vlan_obj->get_n_elements(bp, vlan_obj, 1,
3313                                                  (u8 *)&ivi->vlan, 0,
3314                                                  VLAN_HLEN);
3315         } else {
3316                 /* mac */
3317                 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
3318                         /* mac configured by ndo so its in bulletin board */
3319                         memcpy(&ivi->mac, bulletin->mac, ETH_ALEN);
3320                 else
3321                         /* function has not been loaded yet. Show mac as 0s */
3322                         memset(&ivi->mac, 0, ETH_ALEN);
3323
3324                 /* vlan */
3325                 if (bulletin->valid_bitmap & (1 << VLAN_VALID))
3326                         /* vlan configured by ndo so its in bulletin board */
3327                         memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN);
3328                 else
3329                         /* function has not been loaded yet. Show vlans as 0s */
3330                         memset(&ivi->vlan, 0, VLAN_HLEN);
3331         }
3332
3333         return 0;
3334 }
3335
3336 /* New mac for VF. Consider these cases:
3337  * 1. VF hasn't been acquired yet - save the mac in local bulletin board and
3338  *    supply at acquire.
3339  * 2. VF has already been acquired but has not yet initialized - store in local
3340  *    bulletin board. mac will be posted on VF bulletin board after VF init. VF
3341  *    will configure this mac when it is ready.
3342  * 3. VF has already initialized but has not yet setup a queue - post the new
3343  *    mac on VF's bulletin board right now. VF will configure this mac when it
3344  *    is ready.
3345  * 4. VF has already set a queue - delete any macs already configured for this
3346  *    queue and manually config the new mac.
3347  * In any event, once this function has been called refuse any attempts by the
3348  * VF to configure any mac for itself except for this mac. In case of a race
3349  * where the VF fails to see the new post on its bulletin board before sending a
3350  * mac configuration request, the PF will simply fail the request and VF can try
3351  * again after consulting its bulletin board.
3352  */
3353 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
3354 {
3355         struct bnx2x *bp = netdev_priv(dev);
3356         int rc, q_logical_state;
3357         struct bnx2x_virtf *vf = NULL;
3358         struct pf_vf_bulletin_content *bulletin = NULL;
3359
3360         /* sanity and init */
3361         rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3362         if (rc)
3363                 return rc;
3364         if (!is_valid_ether_addr(mac)) {
3365                 BNX2X_ERR("mac address invalid\n");
3366                 return -EINVAL;
3367         }
3368
3369         /* update PF's copy of the VF's bulletin. Will no longer accept mac
3370          * configuration requests from vf unless match this mac
3371          */
3372         bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID;
3373         memcpy(bulletin->mac, mac, ETH_ALEN);
3374
3375         /* Post update on VF's bulletin board */
3376         rc = bnx2x_post_vf_bulletin(bp, vfidx);
3377         if (rc) {
3378                 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
3379                 return rc;
3380         }
3381
3382         q_logical_state =
3383                 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj));
3384         if (vf->state == VF_ENABLED &&
3385             q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3386                 /* configure the mac in device on this vf's queue */
3387                 unsigned long ramrod_flags = 0;
3388                 struct bnx2x_vlan_mac_obj *mac_obj =
3389                         &bnx2x_leading_vfq(vf, mac_obj);
3390
3391                 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
3392                 if (rc)
3393                         return rc;
3394
3395                 /* must lock vfpf channel to protect against vf flows */
3396                 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3397
3398                 /* remove existing eth macs */
3399                 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
3400                 if (rc) {
3401                         BNX2X_ERR("failed to delete eth macs\n");
3402                         return -EINVAL;
3403                 }
3404
3405                 /* remove existing uc list macs */
3406                 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true);
3407                 if (rc) {
3408                         BNX2X_ERR("failed to delete uc_list macs\n");
3409                         return -EINVAL;
3410                 }
3411
3412                 /* configure the new mac to device */
3413                 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3414                 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true,
3415                                   BNX2X_ETH_MAC, &ramrod_flags);
3416
3417                 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
3418         }
3419
3420         return 0;
3421 }
3422
3423 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
3424 {
3425         struct bnx2x *bp = netdev_priv(dev);
3426         int rc, q_logical_state;
3427         struct bnx2x_virtf *vf = NULL;
3428         struct pf_vf_bulletin_content *bulletin = NULL;
3429
3430         /* sanity and init */
3431         rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
3432         if (rc)
3433                 return rc;
3434
3435         if (vlan > 4095) {
3436                 BNX2X_ERR("illegal vlan value %d\n", vlan);
3437                 return -EINVAL;
3438         }
3439
3440         DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n",
3441            vfidx, vlan, 0);
3442
3443         /* update PF's copy of the VF's bulletin. No point in posting the vlan
3444          * to the VF since it doesn't have anything to do with it. But it useful
3445          * to store it here in case the VF is not up yet and we can only
3446          * configure the vlan later when it does.
3447          */
3448         bulletin->valid_bitmap |= 1 << VLAN_VALID;
3449         bulletin->vlan = vlan;
3450
3451         /* is vf initialized and queue set up? */
3452         q_logical_state =
3453                 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj));
3454         if (vf->state == VF_ENABLED &&
3455             q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
3456                 /* configure the vlan in device on this vf's queue */
3457                 unsigned long ramrod_flags = 0;
3458                 unsigned long vlan_mac_flags = 0;
3459                 struct bnx2x_vlan_mac_obj *vlan_obj =
3460                         &bnx2x_leading_vfq(vf, vlan_obj);
3461                 struct bnx2x_vlan_mac_ramrod_params ramrod_param;
3462                 struct bnx2x_queue_state_params q_params = {NULL};
3463                 struct bnx2x_queue_update_params *update_params;
3464
3465                 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
3466                 if (rc)
3467                         return rc;
3468                 memset(&ramrod_param, 0, sizeof(ramrod_param));
3469
3470                 /* must lock vfpf channel to protect against vf flows */
3471                 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3472
3473                 /* remove existing vlans */
3474                 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3475                 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags,
3476                                           &ramrod_flags);
3477                 if (rc) {
3478                         BNX2X_ERR("failed to delete vlans\n");
3479                         return -EINVAL;
3480                 }
3481
3482                 /* send queue update ramrod to configure default vlan and silent
3483                  * vlan removal
3484                  */
3485                 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
3486                 q_params.cmd = BNX2X_Q_CMD_UPDATE;
3487                 q_params.q_obj = &bnx2x_leading_vfq(vf, sp_obj);
3488                 update_params = &q_params.params.update;
3489                 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
3490                           &update_params->update_flags);
3491                 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
3492                           &update_params->update_flags);
3493
3494                 if (vlan == 0) {
3495                         /* if vlan is 0 then we want to leave the VF traffic
3496                          * untagged, and leave the incoming traffic untouched
3497                          * (i.e. do not remove any vlan tags).
3498                          */
3499                         __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3500                                     &update_params->update_flags);
3501                         __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3502                                     &update_params->update_flags);
3503                 } else {
3504                         /* configure the new vlan to device */
3505                         __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
3506                         ramrod_param.vlan_mac_obj = vlan_obj;
3507                         ramrod_param.ramrod_flags = ramrod_flags;
3508                         ramrod_param.user_req.u.vlan.vlan = vlan;
3509                         ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
3510                         rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
3511                         if (rc) {
3512                                 BNX2X_ERR("failed to configure vlan\n");
3513                                 return -EINVAL;
3514                         }
3515
3516                         /* configure default vlan to vf queue and set silent
3517                          * vlan removal (the vf remains unaware of this vlan).
3518                          */
3519                         update_params = &q_params.params.update;
3520                         __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN,
3521                                   &update_params->update_flags);
3522                         __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM,
3523                                   &update_params->update_flags);
3524                         update_params->def_vlan = vlan;
3525                 }
3526
3527                 /* Update the Queue state */
3528                 rc = bnx2x_queue_state_change(bp, &q_params);
3529                 if (rc) {
3530                         BNX2X_ERR("Failed to configure default VLAN\n");
3531                         return rc;
3532                 }
3533
3534                 /* clear the flag indicating that this VF needs its vlan
3535                  * (will only be set if the HV configured th Vlan before vf was
3536                  * and we were called because the VF came up later
3537                  */
3538                 vf->cfg_flags &= ~VF_CFG_VLAN;
3539
3540                 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
3541         }
3542         return 0;
3543 }
3544
3545 /* crc is the first field in the bulletin board. Compute the crc over the
3546  * entire bulletin board excluding the crc field itself. Use the length field
3547  * as the Bulletin Board was posted by a PF with possibly a different version
3548  * from the vf which will sample it. Therefore, the length is computed by the
3549  * PF and the used blindly by the VF.
3550  */
3551 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
3552                           struct pf_vf_bulletin_content *bulletin)
3553 {
3554         return crc32(BULLETIN_CRC_SEED,
3555                  ((u8 *)bulletin) + sizeof(bulletin->crc),
3556                  bulletin->length - sizeof(bulletin->crc));
3557 }
3558
3559 /* Check for new posts on the bulletin board */
3560 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
3561 {
3562         struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
3563         int attempts;
3564
3565         /* bulletin board hasn't changed since last sample */
3566         if (bp->old_bulletin.version == bulletin.version)
3567                 return PFVF_BULLETIN_UNCHANGED;
3568
3569         /* validate crc of new bulletin board */
3570         if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) {
3571                 /* sampling structure in mid post may result with corrupted data
3572                  * validate crc to ensure coherency.
3573                  */
3574                 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
3575                         bulletin = bp->pf2vf_bulletin->content;
3576                         if (bulletin.crc == bnx2x_crc_vf_bulletin(bp,
3577                                                                   &bulletin))
3578                                 break;
3579                         BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
3580                                   bulletin.crc,
3581                                   bnx2x_crc_vf_bulletin(bp, &bulletin));
3582                 }
3583                 if (attempts >= BULLETIN_ATTEMPTS) {
3584                         BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
3585                                   attempts);
3586                         return PFVF_BULLETIN_CRC_ERR;
3587                 }
3588         }
3589
3590         /* the mac address in bulletin board is valid and is new */
3591         if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID &&
3592             memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) {
3593                 /* update new mac to net device */
3594                 memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
3595         }
3596
3597         /* the vlan in bulletin board is valid and is new */
3598         if (bulletin.valid_bitmap & 1 << VLAN_VALID)
3599                 memcpy(&bulletin.vlan, &bp->old_bulletin.vlan, VLAN_HLEN);
3600
3601         /* copy new bulletin board to bp */
3602         bp->old_bulletin = bulletin;
3603
3604         return PFVF_BULLETIN_UPDATED;
3605 }
3606
3607 void bnx2x_timer_sriov(struct bnx2x *bp)
3608 {
3609         bnx2x_sample_bulletin(bp);
3610
3611         /* if channel is down we need to self destruct */
3612         if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
3613                 smp_mb__before_clear_bit();
3614                 set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
3615                         &bp->sp_rtnl_state);
3616                 smp_mb__after_clear_bit();
3617                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3618         }
3619 }
3620
3621 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
3622 {
3623         /* vf doorbells are embedded within the regview */
3624         return bp->regview + PXP_VF_ADDR_DB_START;
3625 }
3626
3627 int bnx2x_vf_pci_alloc(struct bnx2x *bp)
3628 {
3629         mutex_init(&bp->vf2pf_mutex);
3630
3631         /* allocate vf2pf mailbox for vf to pf channel */
3632         BNX2X_PCI_ALLOC(bp->vf2pf_mbox, &bp->vf2pf_mbox_mapping,
3633                         sizeof(struct bnx2x_vf_mbx_msg));
3634
3635         /* allocate pf 2 vf bulletin board */
3636         BNX2X_PCI_ALLOC(bp->pf2vf_bulletin, &bp->pf2vf_bulletin_mapping,
3637                         sizeof(union pf_vf_bulletin));
3638
3639         return 0;
3640
3641 alloc_mem_err:
3642         BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
3643                        sizeof(struct bnx2x_vf_mbx_msg));
3644         BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping,
3645                        sizeof(union pf_vf_bulletin));
3646         return -ENOMEM;
3647 }
3648
3649 int bnx2x_open_epilog(struct bnx2x *bp)
3650 {
3651         /* Enable sriov via delayed work. This must be done via delayed work
3652          * because it causes the probe of the vf devices to be run, which invoke
3653          * register_netdevice which must have rtnl lock taken. As we are holding
3654          * the lock right now, that could only work if the probe would not take
3655          * the lock. However, as the probe of the vf may be called from other
3656          * contexts as well (such as passthrough to vm fails) it can't assume
3657          * the lock is being held for it. Using delayed work here allows the
3658          * probe code to simply take the lock (i.e. wait for it to be released
3659          * if it is being held). We only want to do this if the number of VFs
3660          * was set before PF driver was loaded.
3661          */
3662         if (IS_SRIOV(bp) && BNX2X_NR_VIRTFN(bp)) {
3663                 smp_mb__before_clear_bit();
3664                 set_bit(BNX2X_SP_RTNL_ENABLE_SRIOV, &bp->sp_rtnl_state);
3665                 smp_mb__after_clear_bit();
3666                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
3667         }
3668
3669         return 0;
3670 }
3671
3672 void bnx2x_iov_channel_down(struct bnx2x *bp)
3673 {
3674         int vf_idx;
3675         struct pf_vf_bulletin_content *bulletin;
3676
3677         if (!IS_SRIOV(bp))
3678                 return;
3679
3680         for_each_vf(bp, vf_idx) {
3681                 /* locate this VFs bulletin board and update the channel down
3682                  * bit
3683                  */
3684                 bulletin = BP_VF_BULLETIN(bp, vf_idx);
3685                 bulletin->valid_bitmap |= 1 << CHANNEL_DOWN;
3686
3687                 /* update vf bulletin board */
3688                 bnx2x_post_vf_bulletin(bp, vf_idx);
3689         }
3690 }