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
   8 #include "bnxt.h"
   9 #include "bnxt_cpr.h"
  10 #include "bnxt_hwrm.h"
  11 #include "bnxt_ring.h"
  12 #include "hsi_struct_def_dpdk.h"
  13
  14 /*
  15  * Async event handling
  16  */
  17 void bnxt_handle_async_event(struct bnxt *bp,
  18                              struct cmpl_base *cmp)
  19 {
  20         struct hwrm_async_event_cmpl *async_cmp =
  21                                 (struct hwrm_async_event_cmpl *)cmp;
  22         uint16_t event_id = rte_le_to_cpu_16(async_cmp->event_id);
  23
  24         /* TODO: HWRM async events are not defined yet */
  25         /* Needs to handle: link events, error events, etc. */
  26         switch (event_id) {
  27         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
  28         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
  29         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
  30                 /* FALLTHROUGH */
  31                 bnxt_link_update_op(bp->eth_dev, 1);
  32                 break;
  33         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
  34                 PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
  35                 break;
  36         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
  37                 PMD_DRV_LOG(INFO, "Async event: VF config changed\n");
  38                 break;
  39         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
  40                 PMD_DRV_LOG(INFO, "Port conn async event\n");
  41                 break;
  42         default:
  43                 PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
  44                 break;
  45         }
  46 }
  47
  48 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
  49 {
  50         struct hwrm_exec_fwd_resp_input *fwreq;
  51         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
  52         struct input *fwd_cmd;
  53         uint16_t fw_vf_id;
  54         uint16_t vf_id;
  55         uint16_t req_len;
  56         int rc;
  57
  58         if (bp->pf.active_vfs <= 0) {
  59                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
  60                 return;
  61         }
  62
  63         /* Qualify the fwd request */
  64         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
  65         vf_id = fw_vf_id - bp->pf.first_vf_id;
  66
  67         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
  68                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
  69                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
  70         if (req_len > sizeof(fwreq->encap_request))
  71                 req_len = sizeof(fwreq->encap_request);
  72
  73         /* Locate VF's forwarded command */
  74         fwd_cmd = (struct input *)bp->pf.vf_info[vf_id].req_buf;
  75
  76         if (fw_vf_id < bp->pf.first_vf_id ||
  77             fw_vf_id >= (bp->pf.first_vf_id) + bp->pf.active_vfs) {
  78                 PMD_DRV_LOG(ERR,
  79                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
  80                         fw_vf_id, bp->pf.first_vf_id,
  81                         (bp->pf.first_vf_id) + bp->pf.active_vfs - 1,
  82                         bp->pf.first_vf_id, bp->pf.active_vfs);
  83                 goto reject;
  84         }
  85
  86         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd) == true) {
  87                 /*
  88                  * In older firmware versions, the MAC had to be all zeros for
  89                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
  90                  * zeros if it's being configured and has been ok'd by caller.
  91                  */
  92                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
  93                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
  94
  95                         if (vfc->enables &
  96                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
  97                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
  98                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
  99                         }
 100                 }
 101                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 102                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 103                                                         (void *)fwd_cmd;
 104
 105                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 106                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 107                         srm->mask &= ~rte_cpu_to_le_32(
 108                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 109                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 110                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 111                 }
 112                 /* Forward */
 113                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 114                 if (rc) {
 115                         PMD_DRV_LOG(ERR,
 116                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 117                                 fw_vf_id - bp->pf.first_vf_id,
 118                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 119                 }
 120                 return;
 121         }
 122
 123 reject:
 124         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 125         if (rc) {
 126                 PMD_DRV_LOG(ERR,
 127                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 128                         fw_vf_id - bp->pf.first_vf_id,
 129                         rte_le_to_cpu_16(fwd_cmd->req_type));
 130         }
 131
 132         return;
 133 }
 134
 135 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
 136 {
 137         bool evt = 0;
 138
 139         if (bp == NULL || cmp == NULL) {
 140                 PMD_DRV_LOG(ERR, "invalid NULL argument\n");
 141                 return evt;
 142         }
 143
 144         switch (CMP_TYPE(cmp)) {
 145         case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
 146                 /* Handle any async event */
 147                 bnxt_handle_async_event(bp, cmp);
 148                 evt = 1;
 149                 break;
 150         case CMPL_BASE_TYPE_HWRM_FWD_RESP:
 151                 /* Handle HWRM forwarded responses */
 152                 bnxt_handle_fwd_req(bp, cmp);
 153                 evt = 1;
 154                 break;
 155         default:
 156                 /* Ignore any other events */
 157                 PMD_DRV_LOG(INFO, "Ignoring %02x completion\n", CMP_TYPE(cmp));
 158                 break;
 159         }
 160
 161         return evt;
 162 }