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                 break;
  94         default:
  95                 PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
  96                 break;
  97         }
  98 }
  99
 100 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
 101 {
 102         struct hwrm_exec_fwd_resp_input *fwreq;
 103         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
 104         struct input *fwd_cmd;
 105         uint16_t fw_vf_id;
 106         uint16_t vf_id;
 107         uint16_t req_len;
 108         int rc;
 109
 110         if (bp->pf.active_vfs <= 0) {
 111                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
 112                 return;
 113         }
 114
 115         /* Qualify the fwd request */
 116         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
 117         vf_id = fw_vf_id - bp->pf.first_vf_id;
 118
 119         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
 120                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
 121                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
 122         if (req_len > sizeof(fwreq->encap_request))
 123                 req_len = sizeof(fwreq->encap_request);
 124
 125         /* Locate VF's forwarded command */
 126         fwd_cmd = (struct input *)bp->pf.vf_info[vf_id].req_buf;
 127
 128         if (fw_vf_id < bp->pf.first_vf_id ||
 129             fw_vf_id >= (bp->pf.first_vf_id) + bp->pf.active_vfs) {
 130                 PMD_DRV_LOG(ERR,
 131                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
 132                         fw_vf_id, bp->pf.first_vf_id,
 133                         (bp->pf.first_vf_id) + bp->pf.active_vfs - 1,
 134                         bp->pf.first_vf_id, bp->pf.active_vfs);
 135                 goto reject;
 136         }
 137
 138         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd) == true) {
 139                 /*
 140                  * In older firmware versions, the MAC had to be all zeros for
 141                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
 142                  * zeros if it's being configured and has been ok'd by caller.
 143                  */
 144                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
 145                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
 146
 147                         if (vfc->enables &
 148                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
 149                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
 150                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
 151                         }
 152                 }
 153                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 154                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 155                                                         (void *)fwd_cmd;
 156
 157                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 158                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 159                         srm->mask &= ~rte_cpu_to_le_32(
 160                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 161                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 162                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 163                 }
 164                 /* Forward */
 165                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 166                 if (rc) {
 167                         PMD_DRV_LOG(ERR,
 168                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 169                                 fw_vf_id - bp->pf.first_vf_id,
 170                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 171                 }
 172                 return;
 173         }
 174
 175 reject:
 176         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 177         if (rc) {
 178                 PMD_DRV_LOG(ERR,
 179                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 180                         fw_vf_id - bp->pf.first_vf_id,
 181                         rte_le_to_cpu_16(fwd_cmd->req_type));
 182         }
 183
 184         return;
 185 }
 186
 187 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
 188 {
 189         bool evt = 0;
 190
 191         if (bp == NULL || cmp == NULL) {
 192                 PMD_DRV_LOG(ERR, "invalid NULL argument\n");
 193                 return evt;
 194         }
 195
 196         if (unlikely(is_bnxt_in_error(bp)))
 197                 return 0;
 198
 199         switch (CMP_TYPE(cmp)) {
 200         case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
 201                 /* Handle any async event */
 202                 bnxt_handle_async_event(bp, cmp);
 203                 evt = 1;
 204                 break;
 205         case CMPL_BASE_TYPE_HWRM_FWD_RESP:
 206                 /* Handle HWRM forwarded responses */
 207                 bnxt_handle_fwd_req(bp, cmp);
 208                 evt = 1;
 209                 break;
 210         default:
 211                 /* Ignore any other events */
 212                 PMD_DRV_LOG(INFO, "Ignoring %02x completion\n", CMP_TYPE(cmp));
 213                 break;
 214         }
 215
 216         return evt;
 217 }
 218
 219 bool bnxt_is_master_func(struct bnxt *bp)
 220 {
 221         if (bp->recovery_info->flags & BNXT_FLAG_MASTER_FUNC)
 222                 return true;
 223
 224         return false;
 225 }
 226
 227 bool bnxt_is_recovery_enabled(struct bnxt *bp)
 228 {
 229         struct bnxt_error_recovery_info *info;
 230
 231         info = bp->recovery_info;
 232         if (info && (info->flags & BNXT_FLAG_RECOVERY_ENABLED))
 233                 return true;
 234
 235         return false;
 236 }