diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2010-06-25 07:05:56 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-25 21:03:32 -0700 |
| commit | 477e54eba4fd092704e50e65ade79463bd17fa85 (patch) | |
| tree | cdef631b8e1e3a48578effbced82907026ef3ef8 /drivers/net/sfc | |
| parent | 5d3a6fca955c18b066f01233f9faeb351c0d966b (diff) | |
| download | linux-477e54eba4fd092704e50e65ade79463bd17fa85.tar.bz2 | |
sfc: Use Toeplitz IPv4 hash for RSS and hash insertion
Insertion of the Falcon hash is unreliable.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc')
| -rw-r--r-- | drivers/net/sfc/falcon.c | 14 | ||||
| -rw-r--r-- | drivers/net/sfc/siena.c | 11 |
2 files changed, 22 insertions, 3 deletions
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 5a40145f6584..4f9d33f3cca1 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -1581,8 +1581,14 @@ static void falcon_init_rx_cfg(struct efx_nic *efx) EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_XOFF_MAC_TH, data_xoff_thr); EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_XON_TX_TH, ctrl_xon_thr); EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_XOFF_TX_TH, ctrl_xoff_thr); - EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_HASH_INSRT_HDR, 1); EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_INGR_EN, 1); + + /* Enable hash insertion. This is broken for the + * 'Falcon' hash so also select Toeplitz TCP/IPv4 and + * IPv4 hashes. */ + EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_HASH_INSRT_HDR, 1); + EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_HASH_ALG, 1); + EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_IP_HASH, 1); } /* Always enable XOFF signal from RX FIFO. We enable * or disable transmission of pause frames at the MAC. */ @@ -1656,8 +1662,12 @@ static int falcon_init_nic(struct efx_nic *efx) falcon_init_rx_cfg(efx); - /* Set destination of both TX and RX Flush events */ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) { + /* Set hash key for IPv4 */ + memcpy(&temp, efx->rx_hash_key, sizeof(temp)); + efx_writeo(efx, &temp, FR_BZ_RX_RSS_TKEY); + + /* Set destination of both TX and RX Flush events */ EFX_POPULATE_OWORD_1(temp, FRF_BZ_FLS_EVQ_ID, 0); efx_writeo(efx, &temp, FR_BZ_DP_CTRL); } 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 || |