sfc: Add support for RX flow hash control
Allow ethtool to query the number of RX rings, the fields used in RX
flow hashing and the hash indirection table.
Allow ethtool to update the RX flow hash indirection table.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 2a90bf9..35b3f29 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1121,6 +1121,7 @@
static int efx_probe_nic(struct efx_nic *efx)
{
+ size_t i;
int rc;
netif_dbg(efx, probe, efx->net_dev, "creating NIC\n");
@@ -1136,6 +1137,8 @@
if (efx->n_channels > 1)
get_random_bytes(&efx->rx_hash_key, sizeof(efx->rx_hash_key));
+ for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
+ efx->rx_indir_table[i] = i % efx->n_rx_channels;
efx_set_channels(efx);
efx->net_dev->real_num_tx_queues = efx->n_tx_channels;