From: Michael Chan <michael.chan@broadcom.com>
Date: Sun, 5 Aug 2018 16:51:51 -0400
Subject: bnxt_en: Update RSS setup and GRO-HW logic according to the latest
spec.
Patch-mainline: v4.19-rc1
Git-commit: 50f011b63d8caab7f40de52ca6cf4807aea7a941
References: bsc#1104745 FATE#325918
Set the default hash mode flag in HWRM_VNIC_RSS_CFG to signal to the
firmware that the driver is compliant with the latest spec. With
that, the firmware can return expanded RSS profile IDs that the driver
checks to setup the proper gso_type for GRO-HW packets. But instead
of checking for the new profile IDs, we check the IP_TYPE flag
in TPA_START which is more straight forward than checking a list of
profile IDs.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 ++-
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 4 ++++
2 files changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1115,7 +1115,7 @@ static void bnxt_tpa_start(struct bnxt *
tpa_info->hash_type = PKT_HASH_TYPE_L4;
tpa_info->gso_type = SKB_GSO_TCPV4;
/* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
- if (hash_type == 3)
+ if (hash_type == 3 || TPA_START_IS_IPV6(tpa_start1))
tpa_info->gso_type = SKB_GSO_TCPV6;
tpa_info->rss_hash =
le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash);
@@ -3981,6 +3981,7 @@ static int bnxt_hwrm_vnic_set_rss(struct
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_CFG, -1, -1);
if (set_rss) {
req.hash_type = cpu_to_le32(bp->rss_hash_cfg);
+ req.hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT;
if (vnic->flags & BNXT_VNIC_RSS_FLAG) {
if (BNXT_CHIP_TYPE_NITRO_A0(bp))
max_rings = bp->rx_nr_rings - 1;
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -326,6 +326,10 @@ struct rx_tpa_start_cmp_ext {
((le32_to_cpu((rx_tpa_start)->rx_tpa_start_cmp_cfa_code_v2) & \
RX_TPA_START_CMP_CFA_CODE) >> RX_TPA_START_CMPL_CFA_CODE_SHIFT)
+#define TPA_START_IS_IPV6(rx_tpa_start) \
+ (!!((rx_tpa_start)->rx_tpa_start_cmp_flags2 & \
+ cpu_to_le32(RX_TPA_START_CMP_FLAGS2_IP_TYPE)))
+
struct rx_tpa_end_cmp {
__le32 rx_tpa_end_cmp_len_flags_type;
#define RX_TPA_END_CMP_TYPE (0x3f << 0)