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([2a09:bac1:76c0:540::22f:7d]) by smtp.gmail.com with ESMTPSA id 5614622812f47-467342fab49sm5408516b6e.16.2026.03.13.15.30.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Mar 2026 15:30:59 -0700 (PDT) From: Chris J Arges To: Joe Damato , Jakub Kicinski , Andy Gospodarek , Michael Chan , Pavan Chebbi , Andrew Lunn , "David S. Miller" , Eric Dumazet , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev Cc: Chris J Arges , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH net-next v4 4/6] bnxt_en: Implement XDP RSS hash metadata extraction for V3_CMP Date: Fri, 13 Mar 2026 17:27:34 -0500 Message-ID: <20260313223029.454755-5-carges@cloudflare.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260313223029.454755-1-carges@cloudflare.com> References: <20260313223029.454755-1-carges@cloudflare.com> Precedence: bulk X-Mailing-List: netdev@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. Signed-off-by: Chris J Arges --- v4: re-uses bnxt_rss_ext_op --- 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