net/cxgbe: support updating RSS hash configuration and key

[dpdk.git] / drivers / net / cxgbe / cxgbe_ethdev.c

diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c
index 423a695..b67dcb7 100644 (file)
--- a/drivers/net/cxgbe/cxgbe_ethdev.c
+++ b/drivers/net/cxgbe/cxgbe_ethdev.c
@@ -171,6 +171,8 @@ static void cxgbe_dev_info_get(struct rte_eth_dev *eth_dev,
                                       DEV_TX_OFFLOAD_TCP_TSO;
 
        device_info->reta_size = pi->rss_size;
+       device_info->hash_key_size = CXGBE_DEFAULT_RSS_KEY_LEN;
+       device_info->flow_type_rss_offloads = CXGBE_RSS_HF_ALL;
 
        device_info->rx_desc_lim = cxgbe_desc_lim;
        device_info->tx_desc_lim = cxgbe_desc_lim;
@@ -787,6 +789,36 @@ cxgbe_dev_supported_ptypes_get(struct rte_eth_dev *eth_dev)
        return NULL;
 }
 
+/* Update RSS hash configuration
+ */
+static int cxgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
+                                    struct rte_eth_rss_conf *rss_conf)
+{
+       struct port_info *pi = (struct port_info *)(dev->data->dev_private);
+       struct adapter *adapter = pi->adapter;
+       int err;
+
+       err = cxgbe_write_rss_conf(pi, rss_conf->rss_hf);
+       if (err)
+               return err;
+
+       pi->rss_hf = rss_conf->rss_hf;
+
+       if (rss_conf->rss_key) {
+               u32 key[10], mod_key[10];
+               int i, j;
+
+               memcpy(key, rss_conf->rss_key, CXGBE_DEFAULT_RSS_KEY_LEN);
+
+               for (i = 9, j = 0; i >= 0; i--, j++)
+                       mod_key[j] = cpu_to_be32(key[i]);
+
+               t4_write_rss_key(adapter, mod_key, -1);
+       }
+
+       return 0;
+}
+
 static int cxgbe_get_eeprom_length(struct rte_eth_dev *dev)
 {
        RTE_SET_USED(dev);
@@ -985,6 +1017,7 @@ static const struct eth_dev_ops cxgbe_eth_dev_ops = {
        .get_eeprom             = cxgbe_get_eeprom,
        .set_eeprom             = cxgbe_set_eeprom,
        .get_reg                = cxgbe_get_regs,
+       .rss_hash_update        = cxgbe_dev_rss_hash_update,
 };
 
 /*