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([2a09:bac1:76c0:540::499:50]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7d4a76f96b8sm6591407a34.21.2026.02.13.11.25.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Feb 2026 11:25:10 -0800 (PST) From: Chris J Arges To: michael.chan@broadcom.com, pavan.chebbi@broadcom.com, hawk@kernel.org, Alexei Starovoitov , Daniel Borkmann , "David S. Miller" , Jakub Kicinski , John Fastabend , Stanislav Fomichev Cc: kernel-team@cloudflare.com, jbrandeburg@cloudflare.com, Chris J Arges , Andrew Lunn , Eric Dumazet , Paolo Abeni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH 0/2] bnxt_en: Add XDP RSS hash metadata Date: Fri, 13 Feb 2026 13:24:26 -0600 Message-ID: <20260213192449.1294830-1-carges@cloudflare.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This patchset adds the ability to use an XDP program to extract the RSS hash of a given an xdp_md context. For example this XDP program extracts hash and rss_type: ``` ret = bpf_xdp_metadata_rx_hash(ctx, &hash, &rss_type); if (ret == 0) { bpf_printk("XDP: RX hash=0x%x type=%02x", hash, rss_type); } ``` I was able to test this with a Broadcom BCM57414 NIC and verify that the rss_type and hash were correct for IPv4/6 TCP/UDP and ICMP traffic. Chris J Arges (2): bnxt_en: use bnxt_xdp_buff for xdp context bnxt_en: Implement XDP RSS hash metadata extraction drivers/net/ethernet/broadcom/bnxt/bnxt.c | 29 ++++++++---- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 2 + drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 47 +++++++++++++++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.h | 9 ++++ 4 files changed, 77 insertions(+), 10 deletions(-) -- 2.43.0