net/bnxt: add RSS redirection table operations

Add code to Update/query reta dev_ops
Uses the bnxt_hwrm_vnic_rss_cfg() HWRM API added earlier.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Reviewed-by: David Christensen <david.christensen@broadcom.com>

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index b04010c..b3b76f1 100644 (file)
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -582,6 +582,60 @@ static void bnxt_allmulticast_disable_op(struct rte_eth_dev *eth_dev)
        bnxt_hwrm_cfa_l2_set_rx_mask(bp, vnic);
 }
 
+static int bnxt_reta_update_op(struct rte_eth_dev *eth_dev,
+                           struct rte_eth_rss_reta_entry64 *reta_conf,
+                           uint16_t reta_size)
+{
+       struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
+       struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
+       struct bnxt_vnic_info *vnic;
+       int i;
+
+       if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG))
+               return -EINVAL;
+
+       if (reta_size != HW_HASH_INDEX_SIZE) {
+               RTE_LOG(ERR, PMD, "The configured hash table lookup size "
+                       "(%d) must equal the size supported by the hardware "
+                       "(%d)\n", reta_size, HW_HASH_INDEX_SIZE);
+               return -EINVAL;
+       }
+       /* Update the RSS VNIC(s) */
+       for (i = 0; i < MAX_FF_POOLS; i++) {
+               STAILQ_FOREACH(vnic, &bp->ff_pool[i], next) {
+                       memcpy(vnic->rss_table, reta_conf, reta_size);
+
+                       bnxt_hwrm_vnic_rss_cfg(bp, vnic);
+               }
+       }
+       return 0;
+}
+
+static int bnxt_reta_query_op(struct rte_eth_dev *eth_dev,
+                             struct rte_eth_rss_reta_entry64 *reta_conf,
+                             uint16_t reta_size)
+{
+       struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
+       struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
+
+       /* Retrieve from the default VNIC */
+       if (!vnic)
+               return -EINVAL;
+       if (!vnic->rss_table)
+               return -EINVAL;
+
+       if (reta_size != HW_HASH_INDEX_SIZE) {
+               RTE_LOG(ERR, PMD, "The configured hash table lookup size "
+                       "(%d) must equal the size supported by the hardware "
+                       "(%d)\n", reta_size, HW_HASH_INDEX_SIZE);
+               return -EINVAL;
+       }
+       /* EW - need to revisit here copying from u64 to u16 */
+       memcpy(reta_conf, vnic->rss_table, reta_size);
+
+       return 0;
+}
+
 /*
  * Initialization
  */
@@ -600,6 +654,8 @@ static struct eth_dev_ops bnxt_dev_ops = {
        .rx_queue_release = bnxt_rx_queue_release_op,
        .tx_queue_setup = bnxt_tx_queue_setup_op,
        .tx_queue_release = bnxt_tx_queue_release_op,
+       .reta_update = bnxt_reta_update_op,
+       .reta_query = bnxt_reta_query_op,
        .link_update = bnxt_link_update_op,
        .promiscuous_enable = bnxt_promiscuous_enable_op,
        .promiscuous_disable = bnxt_promiscuous_disable_op,