drivers/net/bnxt/bnxt_cpr.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 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 fid, vnic_state, parent_id, 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         parent_id = (event_data & BNXT_DEFAULT_VNIC_CHANGE_PF_ID_MASK) >>
  71                         BNXT_DEFAULT_VNIC_CHANGE_PF_ID_SFT;
  72         fid = BNXT_PF(bp) ? bp->fw_fid : bp->parent->fid;
  73         if (parent_id != fid || !bp->rep_info)
  74                 return;
  75
  76         vf_fid = (event_data & BNXT_DEFAULT_VNIC_CHANGE_VF_ID_MASK) >>
  77                         BNXT_DEFAULT_VNIC_CHANGE_VF_ID_SFT;
  78         PMD_DRV_LOG(INFO, "async event received vf_id 0x%x\n", vf_fid);
  79
  80         for (vf_id = 0; vf_id < BNXT_MAX_VF_REPS; vf_id++) {
  81                 eth_dev = bp->rep_info[vf_id].vfr_eth_dev;
  82                 if (!eth_dev)
  83                         continue;
  84                 vf_rep_bp = eth_dev->data->dev_private;
  85                 if (vf_rep_bp &&
  86                     vf_rep_bp->fw_fid == vf_fid) {
  87                         vfr_found = true;
  88                         break;
  89                 }
  90         }
  91         if (!vfr_found)
  92                 return;
  93
  94         bnxt_rep_dev_start_op(eth_dev);
  95 }
  96
  97 /*
  98  * Async event handling
  99  */
 100 void bnxt_handle_async_event(struct bnxt *bp,
 101                              struct cmpl_base *cmp)
 102 {
 103         struct hwrm_async_event_cmpl *async_cmp =
 104                                 (struct hwrm_async_event_cmpl *)cmp;
 105         uint16_t event_id = rte_le_to_cpu_16(async_cmp->event_id);
 106         struct bnxt_error_recovery_info *info;
 107         uint32_t event_data;
 108
 109         switch (event_id) {
 110         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
 111         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
 112         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
 113                 /* FALLTHROUGH */
 114                 bnxt_link_update_op(bp->eth_dev, 0);
 115                 break;
 116         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
 117                 PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
 118                 break;
 119         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
 120                 PMD_DRV_LOG(INFO, "Async event: VF config changed\n");
 121                 bnxt_hwrm_func_qcfg(bp, NULL);
 122                 break;
 123         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
 124                 PMD_DRV_LOG(INFO, "Port conn async event\n");
 125                 break;
 126         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY:
 127                 /* Ignore reset notify async events when stopping the port */
 128                 if (!bp->eth_dev->data->dev_started) {
 129                         bp->flags |= BNXT_FLAG_FATAL_ERROR;
 130                         return;
 131                 }
 132
 133                 event_data = rte_le_to_cpu_32(async_cmp->event_data1);
 134                 /* timestamp_lo/hi values are in units of 100ms */
 135                 bp->fw_reset_max_msecs = async_cmp->timestamp_hi ?
 136                         rte_le_to_cpu_16(async_cmp->timestamp_hi) * 100 :
 137                         BNXT_MAX_FW_RESET_TIMEOUT;
 138                 bp->fw_reset_min_msecs = async_cmp->timestamp_lo ?
 139                         async_cmp->timestamp_lo * 100 :
 140                         BNXT_MIN_FW_READY_TIMEOUT;
 141                 if ((event_data & EVENT_DATA1_REASON_CODE_MASK) ==
 142                     EVENT_DATA1_REASON_CODE_FW_EXCEPTION_FATAL) {
 143                         PMD_DRV_LOG(INFO,
 144                                     "Firmware fatal reset event received\n");
 145                         bp->flags |= BNXT_FLAG_FATAL_ERROR;
 146                 } else {
 147                         PMD_DRV_LOG(INFO,
 148                                     "Firmware non-fatal reset event received\n");
 149                 }
 150
 151                 bp->flags |= BNXT_FLAG_FW_RESET;
 152                 rte_eal_alarm_set(US_PER_MS, bnxt_dev_reset_and_resume,
 153                                   (void *)bp);
 154                 break;
 155         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY:
 156                 info = bp->recovery_info;
 157
 158                 if (!info)
 159                         return;
 160
 161                 PMD_DRV_LOG(INFO, "Error recovery async event received\n");
 162
 163                 event_data = rte_le_to_cpu_32(async_cmp->event_data1) &
 164                                 EVENT_DATA1_FLAGS_MASK;
 165
 166                 if (event_data & EVENT_DATA1_FLAGS_MASTER_FUNC)
 167                         info->flags |= BNXT_FLAG_MASTER_FUNC;
 168                 else
 169                         info->flags &= ~BNXT_FLAG_MASTER_FUNC;
 170
 171                 if (event_data & EVENT_DATA1_FLAGS_RECOVERY_ENABLED)
 172                         info->flags |= BNXT_FLAG_RECOVERY_ENABLED;
 173                 else
 174                         info->flags &= ~BNXT_FLAG_RECOVERY_ENABLED;
 175
 176                 PMD_DRV_LOG(INFO, "recovery enabled(%d), master function(%d)\n",
 177                             bnxt_is_recovery_enabled(bp),
 178                             bnxt_is_master_func(bp));
 179
 180                 if (bp->flags & BNXT_FLAG_FW_HEALTH_CHECK_SCHEDULED)
 181                         return;
 182
 183                 info->last_heart_beat =
 184                         bnxt_read_fw_status_reg(bp, BNXT_FW_HEARTBEAT_CNT_REG);
 185                 info->last_reset_counter =
 186                         bnxt_read_fw_status_reg(bp, BNXT_FW_RECOVERY_CNT_REG);
 187
 188                 bnxt_schedule_fw_health_check(bp);
 189                 break;
 190         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION:
 191                 PMD_DRV_LOG(INFO, "DNC event: evt_data1 %#x evt_data2 %#x\n",
 192                             rte_le_to_cpu_32(async_cmp->event_data1),
 193                             rte_le_to_cpu_32(async_cmp->event_data2));
 194                 break;
 195         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_DEFAULT_VNIC_CHANGE:
 196                 bnxt_process_default_vnic_change(bp, async_cmp);
 197                 break;
 198         default:
 199                 PMD_DRV_LOG(DEBUG, "handle_async_event id = 0x%x\n", event_id);
 200                 break;
 201         }
 202 }
 203
 204 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
 205 {
 206         struct hwrm_exec_fwd_resp_input *fwreq;
 207         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
 208         struct input *fwd_cmd;
 209         uint16_t fw_vf_id;
 210         uint16_t vf_id;
 211         uint16_t req_len;
 212         int rc;
 213
 214         if (bp->pf->active_vfs <= 0) {
 215                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
 216                 return;
 217         }
 218
 219         /* Qualify the fwd request */
 220         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
 221         vf_id = fw_vf_id - bp->pf->first_vf_id;
 222
 223         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
 224                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
 225                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
 226         if (req_len > sizeof(fwreq->encap_request))
 227                 req_len = sizeof(fwreq->encap_request);
 228
 229         /* Locate VF's forwarded command */
 230         fwd_cmd = (struct input *)bp->pf->vf_info[vf_id].req_buf;
 231
 232         if (fw_vf_id < bp->pf->first_vf_id ||
 233             fw_vf_id >= bp->pf->first_vf_id + bp->pf->active_vfs) {
 234                 PMD_DRV_LOG(ERR,
 235                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
 236                         fw_vf_id, bp->pf->first_vf_id,
 237                         (bp->pf->first_vf_id) + bp->pf->active_vfs - 1,
 238                         bp->pf->first_vf_id, bp->pf->active_vfs);
 239                 goto reject;
 240         }
 241
 242         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd)) {
 243                 /*
 244                  * In older firmware versions, the MAC had to be all zeros for
 245                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
 246                  * zeros if it's being configured and has been ok'd by caller.
 247                  */
 248                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
 249                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
 250
 251                         if (vfc->enables &
 252                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
 253                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
 254                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
 255                         }
 256                 }
 257
 258                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 259                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 260                                                         (void *)fwd_cmd;
 261
 262                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 263                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 264                         srm->mask &= ~rte_cpu_to_le_32(
 265                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 266                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 267                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 268                 }
 269
 270                 /* Forward */
 271                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 272                 if (rc) {
 273                         PMD_DRV_LOG(ERR,
 274                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 275                                 fw_vf_id - bp->pf->first_vf_id,
 276                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 277                 }
 278                 return;
 279         }
 280
 281 reject:
 282         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 283         if (rc) {
 284                 PMD_DRV_LOG(ERR,
 285                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 286                         fw_vf_id - bp->pf->first_vf_id,
 287                         rte_le_to_cpu_16(fwd_cmd->req_type));
 288         }
 289
 290         return;
 291 }
 292
 293 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
 294 {
 295         bool evt = 0;
 296
 297         if (bp == NULL || cmp == NULL) {
 298                 PMD_DRV_LOG(ERR, "invalid NULL argument\n");
 299                 return evt;
 300         }
 301
 302         if (unlikely(is_bnxt_in_error(bp)))
 303                 return 0;
 304
 305         switch (CMP_TYPE(cmp)) {
 306         case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
 307                 /* Handle any async event */
 308                 bnxt_handle_async_event(bp, cmp);
 309                 evt = 1;
 310                 break;
 311         case CMPL_BASE_TYPE_HWRM_FWD_REQ:
 312                 /* Handle HWRM forwarded responses */
 313                 bnxt_handle_fwd_req(bp, cmp);
 314                 evt = 1;
 315                 break;
 316         default:
 317                 /* Ignore any other events */
 318                 PMD_DRV_LOG(DEBUG, "Ignoring %02x completion\n", CMP_TYPE(cmp));
 319                 break;
 320         }
 321
 322         return evt;
 323 }
 324
 325 bool bnxt_is_master_func(struct bnxt *bp)
 326 {
 327         if (bp->recovery_info->flags & BNXT_FLAG_MASTER_FUNC)
 328                 return true;
 329
 330         return false;
 331 }
 332
 333 bool bnxt_is_recovery_enabled(struct bnxt *bp)
 334 {
 335         struct bnxt_error_recovery_info *info;
 336
 337         info = bp->recovery_info;
 338         if (info && (info->flags & BNXT_FLAG_RECOVERY_ENABLED))
 339                 return true;
 340
 341         return false;
 342 }