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