drivers/net/bnxt/bnxt_cpr.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) Broadcom Limited.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Broadcom Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <rte_malloc.h>
  35
  36 #include "bnxt.h"
  37 #include "bnxt_cpr.h"
  38 #include "bnxt_hwrm.h"
  39 #include "bnxt_ring.h"
  40 #include "hsi_struct_def_dpdk.h"
  41
  42 /*
  43  * Async event handling
  44  */
  45 void bnxt_handle_async_event(struct bnxt *bp,
  46                              struct cmpl_base *cmp)
  47 {
  48         struct hwrm_async_event_cmpl *async_cmp =
  49                                 (struct hwrm_async_event_cmpl *)cmp;
  50         uint16_t event_id = rte_le_to_cpu_16(async_cmp->event_id);
  51
  52         /* TODO: HWRM async events are not defined yet */
  53         /* Needs to handle: link events, error events, etc. */
  54         switch (event_id) {
  55         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
  56         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
  57         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
  58                 bnxt_link_update_op(bp->eth_dev, 1);
  59                 break;
  60         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
  61                 PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
  62                 break;
  63         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
  64                 PMD_DRV_LOG(INFO, "Async event: VF config changed\n");
  65                 break;
  66         case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED:
  67                 PMD_DRV_LOG(INFO, "Port conn async event\n");
  68                 break;
  69         default:
  70                 PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
  71                 break;
  72         }
  73 }
  74
  75 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
  76 {
  77         struct hwrm_exec_fwd_resp_input *fwreq;
  78         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
  79         struct input *fwd_cmd;
  80         uint16_t fw_vf_id;
  81         uint16_t vf_id;
  82         uint16_t req_len;
  83         int rc;
  84
  85         if (bp->pf.active_vfs <= 0) {
  86                 PMD_DRV_LOG(ERR, "Forwarded VF with no active VFs\n");
  87                 return;
  88         }
  89
  90         /* Qualify the fwd request */
  91         fw_vf_id = rte_le_to_cpu_16(fwd_cmpl->source_id);
  92         vf_id = fw_vf_id - bp->pf.first_vf_id;
  93
  94         req_len = (rte_le_to_cpu_16(fwd_cmpl->req_len_type) &
  95                    HWRM_FWD_REQ_CMPL_REQ_LEN_MASK) >>
  96                 HWRM_FWD_REQ_CMPL_REQ_LEN_SFT;
  97         if (req_len > sizeof(fwreq->encap_request))
  98                 req_len = sizeof(fwreq->encap_request);
  99
 100         /* Locate VF's forwarded command */
 101         fwd_cmd = (struct input *)bp->pf.vf_info[vf_id].req_buf;
 102
 103         if (fw_vf_id < bp->pf.first_vf_id ||
 104             fw_vf_id >= (bp->pf.first_vf_id) + bp->pf.active_vfs) {
 105                 PMD_DRV_LOG(ERR,
 106                 "FWD req's source_id 0x%x out of range 0x%x - 0x%x (%d %d)\n",
 107                         fw_vf_id, bp->pf.first_vf_id,
 108                         (bp->pf.first_vf_id) + bp->pf.active_vfs - 1,
 109                         bp->pf.first_vf_id, bp->pf.active_vfs);
 110                 goto reject;
 111         }
 112
 113         if (bnxt_rcv_msg_from_vf(bp, vf_id, fwd_cmd) == true) {
 114                 /*
 115                  * In older firmware versions, the MAC had to be all zeros for
 116                  * the VF to set it's MAC via hwrm_func_vf_cfg. Set to all
 117                  * zeros if it's being configured and has been ok'd by caller.
 118                  */
 119                 if (fwd_cmd->req_type == HWRM_FUNC_VF_CFG) {
 120                         struct hwrm_func_vf_cfg_input *vfc = (void *)fwd_cmd;
 121
 122                         if (vfc->enables &
 123                             HWRM_FUNC_VF_CFG_INPUT_ENABLES_DFLT_MAC_ADDR) {
 124                                 bnxt_hwrm_func_vf_mac(bp, vf_id,
 125                                 (const uint8_t *)"\x00\x00\x00\x00\x00");
 126                         }
 127                 }
 128                 if (fwd_cmd->req_type == HWRM_CFA_L2_SET_RX_MASK) {
 129                         struct hwrm_cfa_l2_set_rx_mask_input *srm =
 130                                                         (void *)fwd_cmd;
 131
 132                         srm->vlan_tag_tbl_addr = rte_cpu_to_le_64(0);
 133                         srm->num_vlan_tags = rte_cpu_to_le_32(0);
 134                         srm->mask &= ~rte_cpu_to_le_32(
 135                                 HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLANONLY |
 136                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN |
 137                             HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ANYVLAN_NONVLAN);
 138                 }
 139                 /* Forward */
 140                 rc = bnxt_hwrm_exec_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 141                 if (rc) {
 142                         PMD_DRV_LOG(ERR,
 143                                 "Failed to send FWD req VF 0x%x, type 0x%x.\n",
 144                                 fw_vf_id - bp->pf.first_vf_id,
 145                                 rte_le_to_cpu_16(fwd_cmd->req_type));
 146                 }
 147                 return;
 148         }
 149
 150 reject:
 151         rc = bnxt_hwrm_reject_fwd_resp(bp, fw_vf_id, fwd_cmd, req_len);
 152         if (rc) {
 153                 PMD_DRV_LOG(ERR,
 154                         "Failed to send REJECT req VF 0x%x, type 0x%x.\n",
 155                         fw_vf_id - bp->pf.first_vf_id,
 156                         rte_le_to_cpu_16(fwd_cmd->req_type));
 157         }
 158
 159         return;
 160 }
 161
 162 /* For the default completion ring only */
 163 int bnxt_alloc_def_cp_ring(struct bnxt *bp)
 164 {
 165         struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
 166         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 167         int rc;
 168
 169         rc = bnxt_hwrm_ring_alloc(bp, cp_ring,
 170                                   HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL,
 171                                   0, HWRM_NA_SIGNATURE,
 172                                   HWRM_NA_SIGNATURE);
 173         if (rc)
 174                 goto err_out;
 175         cpr->cp_doorbell = bp->pdev->mem_resource[2].addr;
 176         B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
 177         if (BNXT_PF(bp))
 178                 rc = bnxt_hwrm_func_cfg_def_cp(bp);
 179         else
 180                 rc = bnxt_hwrm_vf_func_cfg_def_cp(bp);
 181
 182 err_out:
 183         return rc;
 184 }
 185
 186 void bnxt_free_def_cp_ring(struct bnxt *bp)
 187 {
 188         struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
 189
 190         if (cpr == NULL)
 191                 return;
 192
 193         bnxt_free_ring(cpr->cp_ring_struct);
 194         cpr->cp_ring_struct = NULL;
 195         rte_free(cpr->cp_ring_struct);
 196         rte_free(cpr);
 197         bp->def_cp_ring = NULL;
 198 }
 199
 200 /* For the default completion ring only */
 201 int bnxt_init_def_ring_struct(struct bnxt *bp, unsigned int socket_id)
 202 {
 203         struct bnxt_cp_ring_info *cpr;
 204         struct bnxt_ring *ring;
 205
 206         cpr = rte_zmalloc_socket("cpr",
 207                                  sizeof(struct bnxt_cp_ring_info),
 208                                  RTE_CACHE_LINE_SIZE, socket_id);
 209         if (cpr == NULL)
 210                 return -ENOMEM;
 211         bp->def_cp_ring = cpr;
 212
 213         ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
 214                                   sizeof(struct bnxt_ring),
 215                                   RTE_CACHE_LINE_SIZE, socket_id);
 216         if (ring == NULL)
 217                 return -ENOMEM;
 218         cpr->cp_ring_struct = ring;
 219         ring->bd = (void *)cpr->cp_desc_ring;
 220         ring->bd_dma = cpr->cp_desc_mapping;
 221         ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
 222         ring->ring_mask = ring->ring_size - 1;
 223         ring->vmem_size = 0;
 224         ring->vmem = NULL;
 225
 226         return 0;
 227 }