ceph/src/dpdk/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, 0);
  59                 break;
  60         default:
  61                 RTE_LOG(ERR, PMD, "handle_async_event id = 0x%x\n", event_id);
  62                 break;
  63         }
  64 }
  65
  66 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
  67 {
  68         struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
  69         struct input *fwd_cmd;
  70         uint16_t logical_vf_id, error_code;
  71
  72         /* Qualify the fwd request */
  73         if (fwd_cmpl->source_id < bp->pf.first_vf_id) {
  74                 RTE_LOG(ERR, PMD,
  75                         "FWD req's source_id 0x%x > first_vf_id 0x%x\n",
  76                         fwd_cmpl->source_id, bp->pf.first_vf_id);
  77                 error_code = HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED;
  78                 goto reject;
  79         } else if (fwd_cmpl->req_len_type >> HWRM_FWD_REQ_CMPL_REQ_LEN_SFT >
  80                    128 - sizeof(struct input)) {
  81                 RTE_LOG(ERR, PMD,
  82                     "FWD req's cmd len 0x%x > 108 bytes allowed\n",
  83                     fwd_cmpl->req_len_type >> HWRM_FWD_REQ_CMPL_REQ_LEN_SFT);
  84                 error_code = HWRM_ERR_CODE_INVALID_PARAMS;
  85                 goto reject;
  86         }
  87
  88         /* Locate VF's forwarded command */
  89         logical_vf_id = fwd_cmpl->source_id - bp->pf.first_vf_id;
  90         fwd_cmd = (struct input *)((uint8_t *)bp->pf.vf_req_buf +
  91                    (logical_vf_id * 128));
  92
  93         /* Provision the request */
  94         switch (fwd_cmd->req_type) {
  95         case HWRM_CFA_L2_FILTER_ALLOC:
  96         case HWRM_CFA_L2_FILTER_FREE:
  97         case HWRM_CFA_L2_FILTER_CFG:
  98         case HWRM_CFA_L2_SET_RX_MASK:
  99                 break;
 100         default:
 101                 error_code = HWRM_ERR_CODE_INVALID_PARAMS;
 102                 goto reject;
 103         }
 104
 105         /* Forward */
 106         fwd_cmd->target_id = fwd_cmpl->source_id;
 107         bnxt_hwrm_exec_fwd_resp(bp, fwd_cmd);
 108         return;
 109
 110 reject:
 111         /* TODO: Encap the reject error resp into the hwrm_err_iput? */
 112         /* Use the error_code for the reject cmd */
 113         RTE_LOG(ERR, PMD,
 114                 "Error 0x%x found in the forward request\n", error_code);
 115 }
 116
 117 /* For the default completion ring only */
 118 void bnxt_free_def_cp_ring(struct bnxt *bp)
 119 {
 120         struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
 121
 122         if (cpr == NULL)
 123                 return;
 124
 125         bnxt_free_ring(cpr->cp_ring_struct);
 126         rte_free(cpr->cp_ring_struct);
 127         rte_free(cpr);
 128 }
 129
 130 /* For the default completion ring only */
 131 int bnxt_init_def_ring_struct(struct bnxt *bp, unsigned int socket_id)
 132 {
 133         struct bnxt_cp_ring_info *cpr;
 134         struct bnxt_ring *ring;
 135
 136         cpr = rte_zmalloc_socket("cpr",
 137                                  sizeof(struct bnxt_cp_ring_info),
 138                                  RTE_CACHE_LINE_SIZE, socket_id);
 139         if (cpr == NULL)
 140                 return -ENOMEM;
 141         bp->def_cp_ring = cpr;
 142
 143         ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
 144                                   sizeof(struct bnxt_ring),
 145                                   RTE_CACHE_LINE_SIZE, socket_id);
 146         if (ring == NULL)
 147                 return -ENOMEM;
 148         cpr->cp_ring_struct = ring;
 149         ring->bd = (void *)cpr->cp_desc_ring;
 150         ring->bd_dma = cpr->cp_desc_mapping;
 151         ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
 152         ring->ring_mask = ring->ring_size - 1;
 153         ring->vmem_size = 0;
 154         ring->vmem = NULL;
 155
 156         return 0;
 157 }