提交 477e54eb 编写于 作者: B Ben Hutchings 提交者: David S. Miller

sfc: Use Toeplitz IPv4 hash for RSS and hash insertion

Insertion of the Falcon hash is unreliable.
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 5d3a6fca
......@@ -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);
}
......
......@@ -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 ||
......
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