net/sfc: set RSS key and hash types config

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andrew Lee <alee@solarflare.com>
Reviewed-by: Robert Stonehouse <rstonehouse@solarflare.com>

diff --git a/doc/guides/nics/features/sfc_efx.ini b/doc/guides/nics/features/sfc_efx.ini
index debea27..4f6f117 100644 (file)
--- a/doc/guides/nics/features/sfc_efx.ini
+++ b/doc/guides/nics/features/sfc_efx.ini
@@ -15,6 +15,7 @@ Promiscuous mode     = Y
 Allmulticast mode    = Y
 Multicast MAC filter = Y
 RSS hash             = Y
+RSS key update       = Y
 Flow control         = Y
 VLAN offload         = P
 L3 checksum offload  = Y

diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 3dbfb95..3d7483d 100644 (file)
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -1024,6 +1024,68 @@ sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 
        return 0;
 }
+
+static int
+sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_conf *rss_conf)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       unsigned int efx_hash_types;
+       int rc = 0;
+
+       if ((sa->rss_channels == 1) ||
+           (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
+               sfc_err(sa, "RSS is not available");
+               return -ENOTSUP;
+       }
+
+       if ((rss_conf->rss_key != NULL) &&
+           (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
+               sfc_err(sa, "RSS key size is wrong (should be %lu)",
+                       sizeof(sa->rss_key));
+               return -EINVAL;
+       }
+
+       if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
+               sfc_err(sa, "unsupported hash functions requested");
+               return -EINVAL;
+       }
+
+       sfc_adapter_lock(sa);
+
+       efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
+
+       rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
+                                  efx_hash_types, B_TRUE);
+       if (rc != 0)
+               goto fail_scale_mode_set;
+
+       if (rss_conf->rss_key != NULL) {
+               if (sa->state == SFC_ADAPTER_STARTED) {
+                       rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
+                                                 sizeof(sa->rss_key));
+                       if (rc != 0)
+                               goto fail_scale_key_set;
+               }
+
+               rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
+       }
+
+       sa->rss_hash_types = efx_hash_types;
+
+       sfc_adapter_unlock(sa);
+
+       return 0;
+
+fail_scale_key_set:
+       if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
+                                 sa->rss_hash_types, B_TRUE) != 0)
+               sfc_err(sa, "failed to restore RSS mode");
+
+fail_scale_mode_set:
+       sfc_adapter_unlock(sa);
+       return -rc;
+}
 #endif
 
 static const struct eth_dev_ops sfc_eth_dev_ops = {
@@ -1058,6 +1120,7 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
        .flow_ctrl_set                  = sfc_flow_ctrl_set,
        .mac_addr_set                   = sfc_mac_addr_set,
 #if EFSYS_OPT_RX_SCALE
+       .rss_hash_update                = sfc_dev_rss_hash_update,
        .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
 #endif
        .set_mc_addr_list               = sfc_set_mc_addr_list,