drivers/net/bnxt/bnxt_cpr.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_malloc.h>
   7 #include <rte_alarm.h>
   8 #include <rte_cycles.h>
   9
  10 #include "bnxt.h"
  11 #include "bnxt_hwrm.h"
  12 #include "bnxt_ring.h"
  13 #include "hsi_struct_def_dpdk.h"
  14
  15 void bnxt_wait_for_device_shutdown(struct bnxt *bp)
  16 {
  17         uint32_t val, timeout;
  18
  19         /* if HWRM_FUNC_QCAPS_OUTPUT_FLAGS_ERR_RECOVER_RELOAD is set
  20          * in HWRM_FUNC_QCAPS command, wait for FW_STATUS to set
  21          * the SHUTDOWN bit in health register
  22          */
  23         if (!(bp->recovery_info &&
  24               (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD)))
  25                 return;
  26
  27         /* Driver has to wait for fw_reset_max_msecs or shutdown bit which comes
  28          * first for FW to collect crash dump.
  29          */
  30         timeout = bp->fw_reset_max_msecs;
  31
  32         /* Driver has to poll for shutdown bit in fw_status register
  33          *
  34          * 1. in case of hot fw upgrade, this bit will be set after all
  35          *    function drivers unregistered with fw.
  36          * 2. in case of fw initiated error recovery, this bit will be
  37          *    set after fw has collected the core dump
  38          */
  39         do {
  40                 val = bnxt_read_fw_status_reg(bp, BNXT_FW_STATUS_REG);
  41                 if (val & BNXT_FW_STATUS_SHUTDOWN)
  42                         return;
  43
  44                 rte_delay_ms(100);
  45                 timeout -= 100;
  46         } while (timeout);
  47 }
  48
  49 static void
  50 bnxt_process_default_vnic_change(struct bnxt *bp,
  51                                  struct hwrm_async_event_cmpl *async_cmp)
  52 {
  53         uint16_t vnic_state, vf_fid, vf_id;
  54         struct bnxt_representor *vf_rep_bp;
  55         struct rte_eth_dev *eth_dev;
  56         bool vfr_found = false;
  57         uint32_t event_data;
  58
  59         if (!BNXT_TRUFLOW_EN(bp))
  60                 return;
  61
  62         PMD_DRV_LOG(INFO, "Default vnic change async event received\n");
  63         event_data = rte_le_to_cpu_32(async_cmp->event_data1);
  64
  65         vnic_state = (event_data & BNXT_DEFAULT_VNIC_STATE_MASK) >>
  66                         BNXT_DEFAULT_VNIC_STATE_SFT;
  67         if (vnic_state != BNXT_DEFAULT_VNIC_ALLOC)
  68                 return;
  69
  70         if (!bp->rep_info)
  71                 return;
  72
  73         vf_fid = (event_data & BNXT_DEFAULT_VNIC_CHANGE_VF_ID_MASK) >>
  74                         BNXT_DEFAULT_VNIC_CHANGE_VF_ID_SFT;
  75         PMD_DRV_LOG(INFO, "async event received vf_id 0x%x\n", vf_fid);
  76
  77         for (vf_id = 0; vf_id < BNXT_MAX_VF_REPS; vf_id++) {
  78                 eth_dev = bp->rep_info[vf_id].vfr_eth_dev;
  79                 if (!eth_dev)
  80                         continue;
  81                 vf_rep_bp = eth_dev->data->dev_private;
  82                 if (vf_rep_bp &&
  83                     vf_rep_bp->fw_fid == vf_fid) {
  84                         vfr_found = true;
  85                         break;
  86                 }
  87         }
  88         if (!vfr_found)
  89                 return;
  90
  91         bnxt_rep_dev_start_op(eth_dev);
  92 }
  93
  94 /*
  95  * Async event handling
  96  */
  97 void bnxt_handle_async_event(struct bnxt *bp,
  98                              struct cmpl_base *cmp)
  99 {
 100         struct hwrm_async_event_cmpl *async_cmp =
 101                                 (struct hwrm_async_event_cmpl *)cmp;
 102         uint16_t event_id = rte_le_to_cpu_16(async_cmp->event_id);
 103         uint16_t port_id = bp->eth_dev->data->port_id;
 104         struct bnxt_error_recovery_info *info;
 105         uint32_t event_data;
 106         uint32_t echo_req_data1, echo_req_data2;
 107
 108         switch (event_id) {
 109         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
 110         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
 111         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
 112                 /* FALLTHROUGH */
 113                 bnxt_link_update_op(bp->eth_dev, 0);
 114                 rte_eth_dev_callback_process(bp->eth_dev,
 115                         RTE_ETH_EVENT_INTR_LSC, NULL);
 116                 break;
 117         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
 118                 PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
 119                 break;
 120         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
 121                 PMD_DRV_LOG(INFO, "Async event: VF config changed\n");
 122                 bnxt_hwrm_func_qcfg(bp, NULL);
 123                 break;
 124         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
 125                 PMD_DRV_LOG(INFO, "Port conn async event\n");
 126                 break;
 127         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY:
 128                 /*
 129                  * Avoid any rx/tx packet processing during firmware reset
 130                  * operation.
 131                  */
 132                 bnxt_stop_rxtx(bp);
 133
 134                 /* Ignore reset notify async events when stopping the port */
 135                 if (!bp->eth_dev->data->dev_started) {
 136                         bp->flags |= BNXT_FLAG_FATAL_ERROR;
 137                         return;
 138                 }
 139
 140                 pthread_mutex_lock(&bp->err_recovery_lock);
 141                 event_data = rte_le_to_cpu_32(async_cmp->event_data1);
 142                 /* timestamp_lo/hi values are in units of 100ms */
 143                 bp->fw_reset_max_msecs = async_cmp->timestamp_hi ?
 144                         rte_le_to_cpu_16(async_cmp->timestamp_hi) * 100 :
 145                         BNXT_MAX_FW_RESET_TIMEOUT;
 146                 bp->fw_reset_min_msecs = async_cmp->timestamp_lo ?
 147                         async_cmp->timestamp_lo * 100 :
 148                         BNXT_MIN_FW_READY_TIMEOUT;
 149                 if ((event_data & EVENT_DATA1_REASON_CODE_MASK) ==
 150                     EVENT_DATA1_REASON_CODE_FW_EXCEPTION_FATAL) {
 151                         PMD_DRV_LOG(INFO,
 152                                     "Port %u: Firmware fatal reset event received\n",
 153                                     port_id);
 154                         bp->flags |= BNXT_FLAG_FATAL_ERROR;
 155                 } else {
 156                         PMD_DRV_LOG(INFO,
 157                                     "Port %u: Firmware non-fatal reset event received\n",
 158                                     port_id);
 159                 }
 160
 161                 bp->flags |= BNXT_FLAG_FW_RESET;
 162                 pthread_mutex_unlock(&bp->err_recovery_lock);
 163                 rte_eal_alarm_set(US_PER_MS, bnxt_dev_reset_and_resume,
 164                                   (void *)bp);
 165                 break;
 166         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY:
 167                 info = bp->recovery_info;
 168
 169                 if (!info)
 170                         return;
 171
 172                 PMD_DRV_LOG(INFO, "Port %u: Error recovery async event received\n",
 173                             port_id);
 174
 175                 event_data = rte_le_to_cpu_32(async_cmp->event_data1) &
 176                                 EVENT_DATA1_FLAGS_MASK;
 177
 178                 if (event_data & EVENT_DATA1_FLAGS_MASTER_FUNC)
 179                         info->flags |= BNXT_FLAG_MASTER_FUNC;
 180                 else
 181                         info->flags &= ~BNXT_FLAG_MASTER_FUNC;
 182
 183                 if (event_data & EVENT_DATA1_FLAGS_RECOVERY_ENABLED)
 184                         info->flags |= BNXT_FLAG_RECOVERY_ENABLED;
 185                 else
 186                         info->flags &= ~BNXT_FLAG_RECOVERY_ENABLED;
 187
 188                 PMD_DRV_LOG(INFO, "Port %u: recovery enabled(%d), master function(%d)\n",
 189                             port_id, bnxt_is_recovery_enabled(bp),
 190                             bnxt_is_master_func(bp));
 191
 192                 if (bp->flags & BNXT_FLAG_FW_HEALTH_CHECK_SCHEDULED)
 193                         return;
 194
 195                 info->last_heart_beat =
 196                         bnxt_read_fw_status_reg(bp, BNXT_FW_HEARTBEAT_CNT_REG);
 197                 info->last_reset_counter =
 198                         bnxt_read_fw_status_reg(bp, BNXT_FW_RECOVERY_CNT_REG);
 199
 200                 bnxt_schedule_fw_health_check(bp);
 201                 break;
 202         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION:
 203                 PMD_DRV_LOG(INFO, "DNC event: evt_data1 %#x evt_data2 %#x\n",
 204                             rte_le_to_cpu_32(async_cmp->event_data1),
 205                             rte_le_to_cpu_32(async_cmp->event_data2));
 206                 break;
 207         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_DEFAULT_VNIC_CHANGE:
 208                 bnxt_process_default_vnic_change(bp, async_cmp);
 209                 break;
 210         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST:
 211                 echo_req_data1 = rte_le_to_cpu_32(async_cmp->event_data1);
 212                 echo_req_data2 = rte_le_to_cpu_32(async_cmp->event_data2);
 213                 PMD_DRV_LOG(INFO,
 214                             "Port %u: Received fw echo request: data1 %#x data2 %#x\n",
 215                             port_id, echo_req_data1, echo_req_data2);
 216                 if (bp->recovery_info)
 217                         bnxt_hwrm_fw_echo_reply(bp, echo_req_data1,
 218                                                 echo_req_data2);
 219                 break;
 220         default:
 221                 PMD_DRV_LOG(DEBUG, "handle_async_event id = 0x%x\n", event_id);
 222                 break;
 223         }
 224 }
 225
 226 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
 227 {
 228         struct hwrm_exec_fwd_resp_input *fwreq;
 229         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
 230         struct input *fwd_cmd;
 231         uint16_t fw_vf_id;
 232         uint16_t vf_id;
 233         uint16_t req_len;
 234         int rc;
 235
 236         if (bp->pf->active_vfs <= 0) {
 237                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
 238                 return;
 239         }
 240
 241         /* Qualify the fwd request */
 242         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
 243         vf_id = fw_vf_id - bp->pf->first_vf_id;
 244
 245         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
 246                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
 247                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
 248         if (req_len > sizeof(fwreq->encap_request))
 249                 req_len = sizeof(fwreq->encap_request);
 250
 251         /* Locate VF's forwarded command */
 252         fwd_cmd = (struct input *)bp->pf->vf_info[vf_id].req_buf;
 253
 254         if (fw_vf_id < bp->pf->first_vf_id ||
 255             fw_vf_id >= bp->pf->first_vf_id + bp->pf->active_vfs) {
 256                 PMD_DRV_LOG(ERR,
 257                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
 258                         fw_vf_id, bp->pf->first_vf_id,
 259                         (bp->pf->first_vf_id) + bp->pf->active_vfs - 1,
 260                         bp->pf->first_vf_id, bp->pf->active_vfs);
 261                 goto reject;
 262         }
 263
 264         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd)) {
 265                 /*
 266                  * In older firmware versions, the MAC had to be all zeros for
 267                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
 268                  * zeros if it's being configured and has been ok'd by caller.
 269                  */
 270                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
 271                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
 272
 273                         if (vfc->enables &
 274                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
 275                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
 276                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
 277                         }
 278                 }
 279
 280                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 281                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 282                                                         (void *)fwd_cmd;
 283
 284                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 285                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 286                         srm->mask &= ~rte_cpu_to_le_32(
 287                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 288                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 289                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 290                 }
 291
 292                 /* Forward */
 293                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 294                 if (rc) {
 295                         PMD_DRV_LOG(ERR,
 296                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 297                                 fw_vf_id - bp->pf->first_vf_id,
 298                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 299                 }
 300                 return;
 301         }
 302
 303 reject:
 304         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 305         if (rc) {
 306                 PMD_DRV_LOG(ERR,
 307                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 308                         fw_vf_id - bp->pf->first_vf_id,
 309                         rte_le_to_cpu_16(fwd_cmd->req_type));
 310         }
 311
 312         return;
 313 }
 314
 315 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
 316 {
 317         bool evt = 0;
 318
 319         if (bp == NULL || cmp == NULL) {
 320                 PMD_DRV_LOG(ERR, "invalid NULL argument\n");
 321                 return evt;
 322         }
 323
 324         if (unlikely(is_bnxt_in_error(bp)))
 325                 return 0;
 326
 327         switch (CMP_TYPE(cmp)) {
 328         case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
 329                 /* Handle any async event */
 330                 bnxt_handle_async_event(bp, cmp);
 331                 evt = 1;
 332                 break;
 333         case CMPL_BASE_TYPE_HWRM_FWD_REQ:
 334                 /* Handle HWRM forwarded responses */
 335                 bnxt_handle_fwd_req(bp, cmp);
 336                 evt = 1;
 337                 break;
 338         default:
 339                 /* Ignore any other events */
 340                 PMD_DRV_LOG(DEBUG, "Ignoring %02x completion\n", CMP_TYPE(cmp));
 341                 break;
 342         }
 343
 344         return evt;
 345 }
 346
 347 bool bnxt_is_master_func(struct bnxt *bp)
 348 {
 349         if (bp->recovery_info->flags & BNXT_FLAG_MASTER_FUNC)
 350                 return true;
 351
 352         return false;
 353 }
 354
 355 bool bnxt_is_recovery_enabled(struct bnxt *bp)
 356 {
 357         struct bnxt_error_recovery_info *info;
 358
 359         info = bp->recovery_info;
 360         if (info && (info->flags & BNXT_FLAG_RECOVERY_ENABLED))
 361                 return true;
 362
 363         return false;
 364 }
 365
 366 void bnxt_stop_rxtx(struct bnxt *bp)
 367 {
 368         bp->eth_dev->rx_pkt_burst = &bnxt_dummy_recv_pkts;
 369         bp->eth_dev->tx_pkt_burst = &bnxt_dummy_xmit_pkts;
 370 }