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                 bnxt_link_update_op(bp->eth_dev, 1);
  31                 break;
  32         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
  33                 PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
  34                 break;
  35         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
  36                 PMD_DRV_LOG(INFO, "Async event: VF config changed\n");
  37                 break;
  38         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
  39                 PMD_DRV_LOG(INFO, "Port conn async event\n");
  40                 break;
  41         default:
  42                 PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
  43                 break;
  44         }
  45 }
  46
  47 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
  48 {
  49         struct hwrm_exec_fwd_resp_input *fwreq;
  50         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
  51         struct input *fwd_cmd;
  52         uint16_t fw_vf_id;
  53         uint16_t vf_id;
  54         uint16_t req_len;
  55         int rc;
  56
  57         if (bp->pf.active_vfs <= 0) {
  58                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
  59                 return;
  60         }
  61
  62         /* Qualify the fwd request */
  63         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
  64         vf_id = fw_vf_id - bp->pf.first_vf_id;
  65
  66         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
  67                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
  68                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
  69         if (req_len > sizeof(fwreq->encap_request))
  70                 req_len = sizeof(fwreq->encap_request);
  71
  72         /* Locate VF's forwarded command */
  73         fwd_cmd = (struct input *)bp->pf.vf_info[vf_id].req_buf;
  74
  75         if (fw_vf_id < bp->pf.first_vf_id ||
  76             fw_vf_id >= (bp->pf.first_vf_id) + bp->pf.active_vfs) {
  77                 PMD_DRV_LOG(ERR,
  78                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
  79                         fw_vf_id, bp->pf.first_vf_id,
  80                         (bp->pf.first_vf_id) + bp->pf.active_vfs - 1,
  81                         bp->pf.first_vf_id, bp->pf.active_vfs);
  82                 goto reject;
  83         }
  84
  85         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd) == true) {
  86                 /*
  87                  * In older firmware versions, the MAC had to be all zeros for
  88                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
  89                  * zeros if it's being configured and has been ok'd by caller.
  90                  */
  91                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
  92                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
  93
  94                         if (vfc->enables &
  95                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
  96                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
  97                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
  98                         }
  99                 }
 100                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 101                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 102                                                         (void *)fwd_cmd;
 103
 104                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 105                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 106                         srm->mask &= ~rte_cpu_to_le_32(
 107                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 108                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 109                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 110                 }
 111                 /* Forward */
 112                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 113                 if (rc) {
 114                         PMD_DRV_LOG(ERR,
 115                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 116                                 fw_vf_id - bp->pf.first_vf_id,
 117                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 118                 }
 119                 return;
 120         }
 121
 122 reject:
 123         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 124         if (rc) {
 125                 PMD_DRV_LOG(ERR,
 126                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 127                         fw_vf_id - bp->pf.first_vf_id,
 128                         rte_le_to_cpu_16(fwd_cmd->req_type));
 129         }
 130
 131         return;
 132 }
 133
 134 /* For the default completion ring only */
 135 int bnxt_alloc_def_cp_ring(struct bnxt *bp)
 136 {
 137         struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
 138         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 139         int rc;
 140
 141         rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
 142                                   HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL,
 143                                   0, HWRM_NA_SIGNATURE,
 144                                   HWRM_NA_SIGNATURE);
 145         if (rc)
 146                 goto err_out;
 147         cpr->cp_doorbell = bp->pdev->mem_resource[2].addr;
 148         B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
 149         if (BNXT_PF(bp))
 150                 rc = bnxt_hwrm_func_cfg_def_cp(bp);
 151         else
 152                 rc = bnxt_hwrm_vf_func_cfg_def_cp(bp);
 153
 154 err_out:
 155         return rc;
 156 }
 157
 158 void bnxt_free_def_cp_ring(struct bnxt *bp)
 159 {
 160         struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
 161
 162         if (cpr == NULL)
 163                 return;
 164
 165         bnxt_free_ring(cpr->cp_ring_struct);
 166         cpr->cp_ring_struct = NULL;
 167         rte_free(cpr->cp_ring_struct);
 168         rte_free(cpr);
 169         bp->def_cp_ring = NULL;
 170 }
 171
 172 /* For the default completion ring only */
 173 int bnxt_init_def_ring_struct(struct bnxt *bp, unsigned int socket_id)
 174 {
 175         struct bnxt_cp_ring_info *cpr;
 176         struct bnxt_ring *ring;
 177
 178         cpr = rte_zmalloc_socket("cpr",
 179                                  sizeof(struct bnxt_cp_ring_info),
 180                                  RTE_CACHE_LINE_SIZE, socket_id);
 181         if (cpr == NULL)
 182                 return -ENOMEM;
 183         bp->def_cp_ring = cpr;
 184
 185         ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
 186                                   sizeof(struct bnxt_ring),
 187                                   RTE_CACHE_LINE_SIZE, socket_id);
 188         if (ring == NULL)
 189                 return -ENOMEM;
 190         cpr->cp_ring_struct = ring;
 191         ring->bd = (void *)cpr->cp_desc_ring;
 192         ring->bd_dma = cpr->cp_desc_mapping;
 193         ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
 194         ring->ring_mask = ring->ring_size - 1;
 195         ring->vmem_size = 0;
 196         ring->vmem = NULL;
 197
 198         return 0;
 199 }