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
  25         /* TODO: HWRM async events are not defined yet */
  26         /* Needs to handle: link events, error events, etc. */
  27         switch (event_id) {
  28         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
  29         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
  30         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
  31                 /* FALLTHROUGH */
  32                 bnxt_link_update_op(bp->eth_dev, 1);
  33                 break;
  34         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
  35                 PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
  36                 break;
  37         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
  38                 PMD_DRV_LOG(INFO, "Async event: VF config changed\n");
  39                 bnxt_hwrm_func_qcfg(bp, NULL);
  40                 break;
  41         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
  42                 PMD_DRV_LOG(INFO, "Port conn async event\n");
  43                 break;
  44         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY:
  45                 /* timestamp_lo/hi values are in units of 100ms */
  46                 bp->fw_reset_max_msecs = async_cmp->timestamp_hi ?
  47                         rte_le_to_cpu_16(async_cmp->timestamp_hi) * 100 :
  48                         BNXT_MAX_FW_RESET_TIMEOUT;
  49                 bp->fw_reset_min_msecs = async_cmp->timestamp_lo ?
  50                         async_cmp->timestamp_lo * 100 :
  51                         BNXT_MIN_FW_READY_TIMEOUT;
  52                 PMD_DRV_LOG(INFO,
  53                             "Firmware non-fatal reset event received\n");
  54
  55                 bp->flags |= BNXT_FLAG_FW_RESET;
  56                 rte_eal_alarm_set(US_PER_MS, bnxt_dev_reset_and_resume,
  57                                   (void *)bp);
  58                 break;
  59         default:
  60                 PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
  61                 break;
  62         }
  63 }
  64
  65 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
  66 {
  67         struct hwrm_exec_fwd_resp_input *fwreq;
  68         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
  69         struct input *fwd_cmd;
  70         uint16_t fw_vf_id;
  71         uint16_t vf_id;
  72         uint16_t req_len;
  73         int rc;
  74
  75         if (bp->pf.active_vfs <= 0) {
  76                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
  77                 return;
  78         }
  79
  80         /* Qualify the fwd request */
  81         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
  82         vf_id = fw_vf_id - bp->pf.first_vf_id;
  83
  84         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
  85                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
  86                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
  87         if (req_len > sizeof(fwreq->encap_request))
  88                 req_len = sizeof(fwreq->encap_request);
  89
  90         /* Locate VF's forwarded command */
  91         fwd_cmd = (struct input *)bp->pf.vf_info[vf_id].req_buf;
  92
  93         if (fw_vf_id < bp->pf.first_vf_id ||
  94             fw_vf_id >= (bp->pf.first_vf_id) + bp->pf.active_vfs) {
  95                 PMD_DRV_LOG(ERR,
  96                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
  97                         fw_vf_id, bp->pf.first_vf_id,
  98                         (bp->pf.first_vf_id) + bp->pf.active_vfs - 1,
  99                         bp->pf.first_vf_id, bp->pf.active_vfs);
 100                 goto reject;
 101         }
 102
 103         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd) == true) {
 104                 /*
 105                  * In older firmware versions, the MAC had to be all zeros for
 106                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
 107                  * zeros if it's being configured and has been ok'd by caller.
 108                  */
 109                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
 110                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
 111
 112                         if (vfc->enables &
 113                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
 114                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
 115                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
 116                         }
 117                 }
 118                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 119                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 120                                                         (void *)fwd_cmd;
 121
 122                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 123                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 124                         srm->mask &= ~rte_cpu_to_le_32(
 125                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 126                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 127                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 128                 }
 129                 /* Forward */
 130                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 131                 if (rc) {
 132                         PMD_DRV_LOG(ERR,
 133                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 134                                 fw_vf_id - bp->pf.first_vf_id,
 135                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 136                 }
 137                 return;
 138         }
 139
 140 reject:
 141         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 142         if (rc) {
 143                 PMD_DRV_LOG(ERR,
 144                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 145                         fw_vf_id - bp->pf.first_vf_id,
 146                         rte_le_to_cpu_16(fwd_cmd->req_type));
 147         }
 148
 149         return;
 150 }
 151
 152 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
 153 {
 154         bool evt = 0;
 155
 156         if (bp == NULL || cmp == NULL) {
 157                 PMD_DRV_LOG(ERR, "invalid NULL argument\n");
 158                 return evt;
 159         }
 160
 161         if (unlikely(is_bnxt_in_error(bp)))
 162                 return 0;
 163
 164         switch (CMP_TYPE(cmp)) {
 165         case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
 166                 /* Handle any async event */
 167                 bnxt_handle_async_event(bp, cmp);
 168                 evt = 1;
 169                 break;
 170         case CMPL_BASE_TYPE_HWRM_FWD_RESP:
 171                 /* Handle HWRM forwarded responses */
 172                 bnxt_handle_fwd_req(bp, cmp);
 173                 evt = 1;
 174                 break;
 175         default:
 176                 /* Ignore any other events */
 177                 PMD_DRV_LOG(INFO, "Ignoring %02x completion\n", CMP_TYPE(cmp));
 178                 break;
 179         }
 180
 181         return evt;
 182 }