net/bnxt: get device infos

[dpdk.git] / drivers / net / bnxt / bnxt_ethdev.c

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 26e6447..a8a9912 100644 (file)
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -60,11 +60,106 @@ static void bnxt_dev_close_op(struct rte_eth_dev *eth_dev)
        bnxt_free_hwrm_resources(bp);
 }
 
+/*
+ * Device configuration and status function
+ */
+
+static void bnxt_dev_info_get_op(struct rte_eth_dev *eth_dev,
+                                 struct rte_eth_dev_info *dev_info)
+{
+       struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
+       uint16_t max_vnics, i, j, vpool, vrxq;
+
+       /* MAC Specifics */
+       dev_info->max_mac_addrs = MAX_NUM_MAC_ADDR;
+       dev_info->max_hash_mac_addrs = 0;
+
+       /* PF/VF specifics */
+       if (BNXT_PF(bp)) {
+               dev_info->max_rx_queues = bp->pf.max_rx_rings;
+               dev_info->max_tx_queues = bp->pf.max_tx_rings;
+               dev_info->max_vfs = bp->pf.active_vfs;
+               dev_info->reta_size = bp->pf.max_rsscos_ctx;
+               max_vnics = bp->pf.max_vnics;
+       } else {
+               dev_info->max_rx_queues = bp->vf.max_rx_rings;
+               dev_info->max_tx_queues = bp->vf.max_tx_rings;
+               dev_info->reta_size = bp->vf.max_rsscos_ctx;
+               max_vnics = bp->vf.max_vnics;
+       }
+
+       /* Fast path specifics */
+       dev_info->min_rx_bufsize = 1;
+       dev_info->max_rx_pktlen = BNXT_MAX_MTU + ETHER_HDR_LEN + ETHER_CRC_LEN
+                                 + VLAN_TAG_SIZE;
+       dev_info->rx_offload_capa = 0;
+       dev_info->tx_offload_capa = DEV_TX_OFFLOAD_IPV4_CKSUM |
+                                       DEV_TX_OFFLOAD_TCP_CKSUM |
+                                       DEV_TX_OFFLOAD_UDP_CKSUM |
+                                       DEV_TX_OFFLOAD_TCP_TSO;
+
+       /* *INDENT-OFF* */
+       dev_info->default_rxconf = (struct rte_eth_rxconf) {
+               .rx_thresh = {
+                       .pthresh = 8,
+                       .hthresh = 8,
+                       .wthresh = 0,
+               },
+               .rx_free_thresh = 32,
+               .rx_drop_en = 0,
+       };
+
+       dev_info->default_txconf = (struct rte_eth_txconf) {
+               .tx_thresh = {
+                       .pthresh = 32,
+                       .hthresh = 0,
+                       .wthresh = 0,
+               },
+               .tx_free_thresh = 32,
+               .tx_rs_thresh = 32,
+               .txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS |
+                            ETH_TXQ_FLAGS_NOOFFLOADS,
+       };
+       /* *INDENT-ON* */
+
+       /*
+        * TODO: default_rxconf, default_txconf, rx_desc_lim, and tx_desc_lim
+        *       need further investigation.
+        */
+
+       /* VMDq resources */
+       vpool = 64; /* ETH_64_POOLS */
+       vrxq = 128; /* ETH_VMDQ_DCB_NUM_QUEUES */
+       for (i = 0; i < 4; vpool >>= 1, i++) {
+               if (max_vnics > vpool) {
+                       for (j = 0; j < 5; vrxq >>= 1, j++) {
+                               if (dev_info->max_rx_queues > vrxq) {
+                                       if (vpool > vrxq)
+                                               vpool = vrxq;
+                                       goto found;
+                               }
+                       }
+                       /* Not enough resources to support VMDq */
+                       break;
+               }
+       }
+       /* Not enough resources to support VMDq */
+       vpool = 0;
+       vrxq = 0;
+found:
+       dev_info->max_vmdq_pools = vpool;
+       dev_info->vmdq_queue_num = vrxq;
+
+       dev_info->vmdq_pool_base = 0;
+       dev_info->vmdq_queue_base = 0;
+}
+
 /*
  * Initialization
  */
 
 static struct eth_dev_ops bnxt_dev_ops = {
+       .dev_infos_get = bnxt_dev_info_get_op,
        .dev_close = bnxt_dev_close_op,
 };