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bnxt_en: Implement XDP RSS hash metadata extraction for V3_CMP

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This adds another conditional when cmp_type is CMP_TYPE_RX_L2_V3_CMP for
drivers that support this completion format.

This re-uses bnxt_rss_ext_op to provide similar functionality. One
limitation is for L4 hash-types, protocol-specific bits can't be
determined.

Reviewed-by: Joe Damato <joe@dama.to>
Signed-off-by: Chris J Arges <carges@cloudflare.com>
Link: https://patch.msgid.link/20260325201139.2501937-5-carges@cloudflare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Chris J Arges 2026-03-25 15:09:50 -05:00 committed by Jakub Kicinski
parent 4a037aeb6b
commit 5ec22d5f2a
1 changed files with 10 additions and 0 deletions
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10
drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
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@ -514,6 +514,16 @@ int bnxt_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash,
default:
break;
}
} else if (xdp->cmp_type == CMP_TYPE_RX_L2_V3_CMP) {
struct bnxt *bp = netdev_priv(xdp->xdp.rxq->dev);
if (rxcmp1->rx_cmp_flags2 & cpu_to_le32(RX_CMP_FLAGS2_IP_TYPE))
hash_type |= XDP_RSS_TYPE_L3_IPV6;
else
hash_type |= XDP_RSS_TYPE_L3_IPV4;
if (bnxt_rss_ext_op(bp, rxcmp) == PKT_HASH_TYPE_L4)
hash_type |= XDP_RSS_L4;
}
*rss_type = hash_type;