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                 bnxt_hwrm_func_qcfg(bp);
  39                 break;
  40         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
  41                 PMD_DRV_LOG(INFO, "Port conn async event\n");
  42                 break;
  43         default:
  44                 PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
  45                 break;
  46         }
  47 }
  48
  49 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
  50 {
  51         struct hwrm_exec_fwd_resp_input *fwreq;
  52         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
  53         struct input *fwd_cmd;
  54         uint16_t fw_vf_id;
  55         uint16_t vf_id;
  56         uint16_t req_len;
  57         int rc;
  58
  59         if (bp->pf.active_vfs <= 0) {
  60                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
  61                 return;
  62         }
  63
  64         /* Qualify the fwd request */
  65         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
  66         vf_id = fw_vf_id - bp->pf.first_vf_id;
  67
  68         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
  69                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
  70                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
  71         if (req_len > sizeof(fwreq->encap_request))
  72                 req_len = sizeof(fwreq->encap_request);
  73
  74         /* Locate VF's forwarded command */
  75         fwd_cmd = (struct input *)bp->pf.vf_info[vf_id].req_buf;
  76
  77         if (fw_vf_id < bp->pf.first_vf_id ||
  78             fw_vf_id >= (bp->pf.first_vf_id) + bp->pf.active_vfs) {
  79                 PMD_DRV_LOG(ERR,
  80                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
  81                         fw_vf_id, bp->pf.first_vf_id,
  82                         (bp->pf.first_vf_id) + bp->pf.active_vfs - 1,
  83                         bp->pf.first_vf_id, bp->pf.active_vfs);
  84                 goto reject;
  85         }
  86
  87         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd) == true) {
  88                 /*
  89                  * In older firmware versions, the MAC had to be all zeros for
  90                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
  91                  * zeros if it's being configured and has been ok'd by caller.
  92                  */
  93                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
  94                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
  95
  96                         if (vfc->enables &
  97                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
  98                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
  99                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
 100                         }
 101                 }
 102                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 103                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 104                                                         (void *)fwd_cmd;
 105
 106                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 107                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 108                         srm->mask &= ~rte_cpu_to_le_32(
 109                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 110                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 111                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 112                 }
 113                 /* Forward */
 114                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 115                 if (rc) {
 116                         PMD_DRV_LOG(ERR,
 117                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 118                                 fw_vf_id - bp->pf.first_vf_id,
 119                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 120                 }
 121                 return;
 122         }
 123
 124 reject:
 125         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 126         if (rc) {
 127                 PMD_DRV_LOG(ERR,
 128                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 129                         fw_vf_id - bp->pf.first_vf_id,
 130                         rte_le_to_cpu_16(fwd_cmd->req_type));
 131         }
 132
 133         return;
 134 }
 135
 136 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
 137 {
 138         bool evt = 0;
 139
 140         if (bp == NULL || cmp == NULL) {
 141                 PMD_DRV_LOG(ERR, "invalid NULL argument\n");
 142                 return evt;
 143         }
 144
 145         switch (CMP_TYPE(cmp)) {
 146         case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
 147                 /* Handle any async event */
 148                 bnxt_handle_async_event(bp, cmp);
 149                 evt = 1;
 150                 break;
 151         case CMPL_BASE_TYPE_HWRM_FWD_RESP:
 152                 /* Handle HWRM forwarded responses */
 153                 bnxt_handle_fwd_req(bp, cmp);
 154                 evt = 1;
 155                 break;
 156         default:
 157                 /* Ignore any other events */
 158                 PMD_DRV_LOG(INFO, "Ignoring %02x completion\n", CMP_TYPE(cmp));
 159                 break;
 160         }
 161
 162         return evt;
 163 }