From 0c36211bac9b03de2e010597303b930211068caa Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Mon, 5 Feb 2024 14:32:02 -0800 Subject: bnxt_en: Add RSS support for IPSEC headers IPSec uses two distinct protocols, Authentication Header (AH) and Encapsulating Security Payload (ESP). Add support to configure RSS based on AH and ESP headers. This functionality will be enabled based on the capabilities indicated by the firmware in HWRM_VNIC_QCAPS. Signed-off-by: Ajit Khaparde Signed-off-by: Michael Chan Link: https://lore.kernel.org/r/20240205223202.25341-14-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 34 +++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index a8c6d5dd057c..dfb5944683f8 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -1533,8 +1533,14 @@ static int bnxt_grxfh(struct bnxt *bp, struct ethtool_rxnfc *cmd) cmd->data |= RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3; fallthrough; - case SCTP_V4_FLOW: case AH_ESP_V4_FLOW: + if (bp->rss_hash_cfg & + (VNIC_RSS_CFG_REQ_HASH_TYPE_AH_SPI_IPV4 | + VNIC_RSS_CFG_REQ_HASH_TYPE_ESP_SPI_IPV4)) + cmd->data |= RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3; + fallthrough; + case SCTP_V4_FLOW: case AH_V4_FLOW: case ESP_V4_FLOW: case IPV4_FLOW: @@ -1552,8 +1558,14 @@ static int bnxt_grxfh(struct bnxt *bp, struct ethtool_rxnfc *cmd) cmd->data |= RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3; fallthrough; - case SCTP_V6_FLOW: case AH_ESP_V6_FLOW: + if (bp->rss_hash_cfg & + (VNIC_RSS_CFG_REQ_HASH_TYPE_AH_SPI_IPV6 | + VNIC_RSS_CFG_REQ_HASH_TYPE_ESP_SPI_IPV6)) + cmd->data |= RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3; + fallthrough; + case SCTP_V6_FLOW: case AH_V6_FLOW: case ESP_V6_FLOW: case IPV6_FLOW: @@ -1600,6 +1612,24 @@ static int bnxt_srxfh(struct bnxt *bp, struct ethtool_rxnfc *cmd) rss_hash_cfg &= ~VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; if (tuple == 4) rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; + } else if (cmd->flow_type == AH_ESP_V4_FLOW) { + if (tuple == 4 && (!(bp->rss_cap & BNXT_RSS_CAP_AH_V4_RSS_CAP) || + !(bp->rss_cap & BNXT_RSS_CAP_ESP_V4_RSS_CAP))) + return -EINVAL; + rss_hash_cfg &= ~(VNIC_RSS_CFG_REQ_HASH_TYPE_AH_SPI_IPV4 | + VNIC_RSS_CFG_REQ_HASH_TYPE_ESP_SPI_IPV4); + if (tuple == 4) + rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_AH_SPI_IPV4 | + VNIC_RSS_CFG_REQ_HASH_TYPE_ESP_SPI_IPV4; + } else if (cmd->flow_type == AH_ESP_V6_FLOW) { + if (tuple == 4 && (!(bp->rss_cap & BNXT_RSS_CAP_AH_V6_RSS_CAP) || + !(bp->rss_cap & BNXT_RSS_CAP_ESP_V6_RSS_CAP))) + return -EINVAL; + rss_hash_cfg &= ~(VNIC_RSS_CFG_REQ_HASH_TYPE_AH_SPI_IPV6 | + VNIC_RSS_CFG_REQ_HASH_TYPE_ESP_SPI_IPV6); + if (tuple == 4) + rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_AH_SPI_IPV6 | + VNIC_RSS_CFG_REQ_HASH_TYPE_ESP_SPI_IPV6; } else if (tuple == 4) { return -EINVAL; } -- cgit