From 477e54eba4fd092704e50e65ade79463bd17fa85 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 25 Jun 2010 07:05:56 +0000 Subject: sfc: Use Toeplitz IPv4 hash for RSS and hash insertion Insertion of the Falcon hash is unreliable. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/siena.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'drivers/net/sfc/siena.c') diff --git a/drivers/net/sfc/siena.c b/drivers/net/sfc/siena.c index 7fd258ce3c06..3fab030f8ab5 100644 --- a/drivers/net/sfc/siena.c +++ b/drivers/net/sfc/siena.c @@ -327,10 +327,19 @@ static int siena_init_nic(struct efx_nic *efx) efx_reado(efx, &temp, FR_AZ_RX_CFG); EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_DESC_PUSH_EN, 0); - EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_HASH_INSRT_HDR, 1); EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_INGR_EN, 1); + /* Enable hash insertion. This is broken for the 'Falcon' hash + * if IPv6 hashing is also enabled, so also select Toeplitz + * TCP/IPv4 and IPv4 hashes. */ + EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_HASH_INSRT_HDR, 1); + EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_HASH_ALG, 1); + EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_IP_HASH, 1); efx_writeo(efx, &temp, FR_AZ_RX_CFG); + /* Set hash key for IPv4 */ + memcpy(&temp, efx->rx_hash_key, sizeof(temp)); + efx_writeo(efx, &temp, FR_BZ_RX_RSS_TKEY); + /* Enable IPv6 RSS */ BUILD_BUG_ON(sizeof(efx->rx_hash_key) < 2 * sizeof(temp) + FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8 || -- cgit v1.2.3-59-g8ed1b