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Wed, 25 Mar 2026 13:11:56 -0700 (PDT) From: Chris J Arges To: netdev@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, davem@davemloft.net, joe@dama.to, gospo@broadcom.com, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com Cc: andrew+netdev@lunn.ch, horms@kernel.org, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me, shuah@kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, kernel-team@cloudflare.com, Chris J Arges Subject: [PATCH net-next v5 4/6] bnxt_en: Implement XDP RSS hash metadata extraction for V3_CMP Date: Wed, 25 Mar 2026 15:09:50 -0500 Message-ID: <20260325201139.2501937-5-carges@cloudflare.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260325201139.2501937-1-carges@cloudflare.com> References: <20260325201139.2501937-1-carges@cloudflare.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Chris J Arges --- v5: no changes --- drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c index 1f920464b426..babcd463e50e 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c @@ -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; -- 2.43.0