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
   9 #include "bnxt.h"
  10 #include "bnxt_cpr.h"
  11 #include "bnxt_hwrm.h"
  12 #include "bnxt_ring.h"
  13 #include "hsi_struct_def_dpdk.h"
  14
  15 /*
  16  * Async event handling
  17  */
  18 void bnxt_handle_async_event(struct bnxt *bp,
  19                              struct cmpl_base *cmp)
  20 {
  21         struct hwrm_async_event_cmpl *async_cmp =
  22                                 (struct hwrm_async_event_cmpl *)cmp;
  23         uint16_t event_id = rte_le_to_cpu_16(async_cmp->event_id);
  24         struct bnxt_error_recovery_info *info;
  25         uint32_t event_data;
  26
  27         /* TODO: HWRM async events are not defined yet */
  28         /* Needs to handle: link events, error events, etc. */
  29         switch (event_id) {
  30         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
  31         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
  32         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
  33                 /* FALLTHROUGH */
  34                 bnxt_link_update_op(bp->eth_dev, 1);
  35                 break;
  36         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
  37                 PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
  38                 break;
  39         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
  40                 PMD_DRV_LOG(INFO, "Async event: VF config changed\n");
  41                 bnxt_hwrm_func_qcfg(bp, NULL);
  42                 break;
  43         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
  44                 PMD_DRV_LOG(INFO, "Port conn async event\n");
  45                 break;
  46         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY:
  47                 event_data = rte_le_to_cpu_32(async_cmp->event_data1);
  48                 /* timestamp_lo/hi values are in units of 100ms */
  49                 bp->fw_reset_max_msecs = async_cmp->timestamp_hi ?
  50                         rte_le_to_cpu_16(async_cmp->timestamp_hi) * 100 :
  51                         BNXT_MAX_FW_RESET_TIMEOUT;
  52                 bp->fw_reset_min_msecs = async_cmp->timestamp_lo ?
  53                         async_cmp->timestamp_lo * 100 :
  54                         BNXT_MIN_FW_READY_TIMEOUT;
  55                 if ((event_data & EVENT_DATA1_REASON_CODE_MASK) ==
  56                     EVENT_DATA1_REASON_CODE_FW_EXCEPTION_FATAL) {
  57                         PMD_DRV_LOG(INFO,
  58                                     "Firmware fatal reset event received\n");
  59                         bp->flags |= BNXT_FLAG_FATAL_ERROR;
  60                 } else {
  61                         PMD_DRV_LOG(INFO,
  62                                     "Firmware non-fatal reset event received\n");
  63                 }
  64
  65                 bp->flags |= BNXT_FLAG_FW_RESET;
  66                 rte_eal_alarm_set(US_PER_MS, bnxt_dev_reset_and_resume,
  67                                   (void *)bp);
  68                 break;
  69         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY:
  70                 info = bp->recovery_info;
  71
  72                 if (!info)
  73                         return;
  74
  75                 PMD_DRV_LOG(INFO, "Error recovery async event received\n");
  76
  77                 event_data = rte_le_to_cpu_32(async_cmp->event_data1) &
  78                                 EVENT_DATA1_FLAGS_MASK;
  79
  80                 if (event_data & EVENT_DATA1_FLAGS_MASTER_FUNC)
  81                         info->flags |= BNXT_FLAG_MASTER_FUNC;
  82                 else
  83                         info->flags &= ~BNXT_FLAG_MASTER_FUNC;
  84
  85                 if (event_data & EVENT_DATA1_FLAGS_RECOVERY_ENABLED)
  86                         info->flags |= BNXT_FLAG_RECOVERY_ENABLED;
  87                 else
  88                         info->flags &= ~BNXT_FLAG_RECOVERY_ENABLED;
  89
  90                 PMD_DRV_LOG(INFO, "recovery enabled(%d), master function(%d)\n",
  91                             bnxt_is_recovery_enabled(bp),
  92                             bnxt_is_master_func(bp));
  93
  94                 if (bp->flags & BNXT_FLAG_FW_HEALTH_CHECK_SCHEDULED)
  95                         return;
  96
  97                 info->last_heart_beat =
  98                         bnxt_read_fw_status_reg(bp, BNXT_FW_HEARTBEAT_CNT_REG);
  99                 info->last_reset_counter =
 100                         bnxt_read_fw_status_reg(bp, BNXT_FW_RECOVERY_CNT_REG);
 101
 102                 bnxt_schedule_fw_health_check(bp);
 103                 break;
 104         default:
 105                 PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
 106                 break;
 107         }
 108 }
 109
 110 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
 111 {
 112         struct hwrm_exec_fwd_resp_input *fwreq;
 113         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
 114         struct input *fwd_cmd;
 115         uint16_t fw_vf_id;
 116         uint16_t vf_id;
 117         uint16_t req_len;
 118         int rc;
 119
 120         if (bp->pf.active_vfs <= 0) {
 121                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
 122                 return;
 123         }
 124
 125         /* Qualify the fwd request */
 126         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
 127         vf_id = fw_vf_id - bp->pf.first_vf_id;
 128
 129         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
 130                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
 131                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
 132         if (req_len > sizeof(fwreq->encap_request))
 133                 req_len = sizeof(fwreq->encap_request);
 134
 135         /* Locate VF's forwarded command */
 136         fwd_cmd = (struct input *)bp->pf.vf_info[vf_id].req_buf;
 137
 138         if (fw_vf_id < bp->pf.first_vf_id ||
 139             fw_vf_id >= (bp->pf.first_vf_id) + bp->pf.active_vfs) {
 140                 PMD_DRV_LOG(ERR,
 141                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
 142                         fw_vf_id, bp->pf.first_vf_id,
 143                         (bp->pf.first_vf_id) + bp->pf.active_vfs - 1,
 144                         bp->pf.first_vf_id, bp->pf.active_vfs);
 145                 goto reject;
 146         }
 147
 148         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd) == true) {
 149                 /*
 150                  * In older firmware versions, the MAC had to be all zeros for
 151                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
 152                  * zeros if it's being configured and has been ok'd by caller.
 153                  */
 154                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
 155                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
 156
 157                         if (vfc->enables &
 158                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
 159                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
 160                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
 161                         }
 162                 }
 163                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 164                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 165                                                         (void *)fwd_cmd;
 166
 167                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 168                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 169                         srm->mask &= ~rte_cpu_to_le_32(
 170                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 171                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 172                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 173                 }
 174                 /* Forward */
 175                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 176                 if (rc) {
 177                         PMD_DRV_LOG(ERR,
 178                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 179                                 fw_vf_id - bp->pf.first_vf_id,
 180                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 181                 }
 182                 return;
 183         }
 184
 185 reject:
 186         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 187         if (rc) {
 188                 PMD_DRV_LOG(ERR,
 189                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 190                         fw_vf_id - bp->pf.first_vf_id,
 191                         rte_le_to_cpu_16(fwd_cmd->req_type));
 192         }
 193
 194         return;
 195 }
 196
 197 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
 198 {
 199         bool evt = 0;
 200
 201         if (bp == NULL || cmp == NULL) {
 202                 PMD_DRV_LOG(ERR, "invalid NULL argument\n");
 203                 return evt;
 204         }
 205
 206         if (unlikely(is_bnxt_in_error(bp)))
 207                 return 0;
 208
 209         switch (CMP_TYPE(cmp)) {
 210         case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
 211                 /* Handle any async event */
 212                 bnxt_handle_async_event(bp, cmp);
 213                 evt = 1;
 214                 break;
 215         case CMPL_BASE_TYPE_HWRM_FWD_RESP:
 216                 /* Handle HWRM forwarded responses */
 217                 bnxt_handle_fwd_req(bp, cmp);
 218                 evt = 1;
 219                 break;
 220         default:
 221                 /* Ignore any other events */
 222                 PMD_DRV_LOG(INFO, "Ignoring %02x completion\n", CMP_TYPE(cmp));
 223                 break;
 224         }
 225
 226         return evt;
 227 }
 228
 229 bool bnxt_is_master_func(struct bnxt *bp)
 230 {
 231         if (bp->recovery_info->flags & BNXT_FLAG_MASTER_FUNC)
 232                 return true;
 233
 234         return false;
 235 }
 236
 237 bool bnxt_is_recovery_enabled(struct bnxt *bp)
 238 {
 239         struct bnxt_error_recovery_info *info;
 240
 241         info = bp->recovery_info;
 242         if (info && (info->flags & BNXT_FLAG_RECOVERY_ENABLED))
 243                 return true;
 244
 245         return false;
 246 }