From nobody Thu Oct 2 02:05:18 2025 Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 584C430AAC9 for ; Tue, 23 Sep 2025 20:00:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.50 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657648; cv=none; b=Y4D6UK9A+Uu3Fa8lKdW8x2ykXQIKCtG2hg6EuDYir+VE3WN2N/0dJ4bhHf9AysHlbIbLWcuo9i1LZfyiXkriTSwCowcwd5FeH++CGbrgRJuk8FutwWypTdCvlzcL5nCSd+PnZ83WHouvbemO/KWIMLd5LP7keEV6ufd8hHaneBY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657648; c=relaxed/simple; bh=yC887JdsZIuNAU3KH0iM0jpa/sF+QL795+nxAjAlvwo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iFYdRxdD7fFumDmiHA8FkVYQ2Kk0h+BM500cspU7L1v9ZFym2asyzTHdRgBcpJtiJnvlYR5p4sQLytTl1LREIV1We5+5D7lDsxUVg6XDgAKF9Qp/dvod6PtvV/iYd9mEr4Cxv4kxbaZ2+7umBUSjkaskjrcmRqisS7wGRwCnItE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=O5X82eTK; arc=none smtp.client-ip=209.85.208.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="O5X82eTK" Received: by mail-ed1-f50.google.com with SMTP id 4fb4d7f45d1cf-628f2102581so625221a12.2 for ; Tue, 23 Sep 2025 13:00:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1758657645; x=1759262445; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=9kxnKEunBUq6lbDqWLItziPs2zbuhFcil+VxDU1uLZ8=; b=O5X82eTK2Ic9pgW05Mpn9VtUYSRhRrD5rv8wLaoL5KvlQwIptkBt3mDTMWiU38R6wB v9a2MFTMc+e4hIZtXJnkHHAQXsE8IYw8QaRMHV4jeZ37YmLN5uWArwXGGSAgIxrrn3d/ O/z36Sa2X7NOPsTnPuBKzigDBDVfFIghVVxNdi4ANvaScoOUA3S4VszsD8wNxl1dWFE/ BDulN5aO7QCT+obG5cABp2M14IAyrJdwURTQ8JdZak6x0lflIV92fw6NykI8rouycb9P T3km9rpRd1jQmbiLZk+UUV86EBE23sGtvrwKJyZIFZVqRSg0ng67T8NY9AwVIMDc026Y vAbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758657645; x=1759262445; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=9kxnKEunBUq6lbDqWLItziPs2zbuhFcil+VxDU1uLZ8=; b=BoGzNJH9wrEh3zcKX2xVZWSWXV6AFN435BnBUZ77nfDXTDzTM4EuAmdm3h8BTCYGhk plKZPGYxyoIcDXDcv2+jyheuxoln5Bb+d7p7LXc/7UKpdf2AB6jPn5A9xHF7CxrPFfQZ jnhA/NDVCatQxPCsKi52v4LTZ7qbkiLDyAiSonUXyJLtuz2C6QLbReebZZ4jTQ+E7hZZ ppnnkyOsGw4Puep7pSP70C6yEqFlwasnAsJXgFUpGNnKuXA+MKx3BJMwuB+EUT9o2DwI wVemZTCTNoo/jrjFi+LJ6mdlzwqhNDiayUZnUB9YNx+VWPYS5i9CFL5nsd21ndBu+O0n aGfQ== X-Forwarded-Encrypted: i=1; AJvYcCVzSD7zKBIBMc9ew0Qpxqgpnj35HnaWbE1bpgx3bU8TxS6qt4aP20Kwd/Y7x380PFwQ/eZhO6cNQVuvtIc=@vger.kernel.org X-Gm-Message-State: AOJu0Yzx1S2v3qOOm2/zQK6u9dnOpiQXT7ukHTRFhwxgs1i358+CbxwS Q+zfI29GvpOmvJ/dw6lKbR0DEAe0+YfvIiow8GK1gxK7hkxV2Ok3L8V+ X-Gm-Gg: ASbGnct5ndeHr3AnFS9k60C5pr3lghf1B0ih9L1QhV9WNpqXjPhQdmrd2E0ytD5GEWd APvjFZOI+7eQFytKXoNA9sJKzG2AUO27uWFYAQDjUTwIYkQJhC+huS8U/Fny644P+WPJVy+zbew hjH3N8wIYlTbP0T2msQTBFoSw0291N0+IkCoN3aBKKmB9Mmo/hhdAXMICywYG5H4U+hT2xH6xE5 LlySSLhnUfDfXkJJcmOVsOYTT4mXaufWsP63q1yqdto6Bw6JkHuzxt5FhwJ/mLkIjIdWmhq2xq8 H2tnSy7e8eqC5If4ziMMwY5VTpAvjDYzmamzbX5bs59wGK/pOPLV0BPkIo2z3cCVxxWRNdlVGBf IXqYfnFdwV/VUS0cYqGoJyNgY18tU98ShIVdE1UijA7Y= X-Google-Smtp-Source: AGHT+IH0sk2UMFhq8ILkVNhalVb23fPwThZEi+o2vb0yPrbkfalsoc549TsjUa62bG1KSNKQmFvZBw== X-Received: by 2002:a17:907:3ea1:b0:ad8:8c0c:bb3d with SMTP id a640c23a62f3a-b302745d8acmr203295566b.3.1758657644360; Tue, 23 Sep 2025 13:00:44 -0700 (PDT) Received: from bhk ([165.50.1.144]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b2ac72dbe92sm672074066b.111.2025.09.23.13.00.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Sep 2025 13:00:44 -0700 (PDT) From: Mehdi Ben Hadj Khelifa To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, donald.hunter@gmail.com, andrew+netdev@lunn.ch, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, matttbe@kernel.org, chuck.lever@oracle.com, jdamato@fastly.com, skhawaja@google.com, dw@davidwei.uk, mkarsten@uwaterloo.ca, yoong.siang.song@intel.com, david.hunter.linux@gmail.com, skhan@linuxfoundation.org Cc: horms@kernel.org, sdf@fomichev.me, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, Mehdi Ben Hadj Khelifa Subject: [PATCH RFC 1/4] netlink: specs: Add XDP RX queue index to XDP metadata Date: Tue, 23 Sep 2025 22:00:12 +0100 Message-ID: <20250923210026.3870-2-mehdi.benhadjkhelifa@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> References: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Devices will be able to communicate received packets queue index with bpf_xdp_metadata_rx_queue_index(). Signed-off-by: Mehdi Ben Hadj Khelifa --- Documentation/netlink/specs/netdev.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlin= k/specs/netdev.yaml index c035dc0f64fd..25fe17ea1625 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -61,6 +61,11 @@ definitions: doc: | Device is capable of exposing receive packet VLAN tag via bpf_xdp_metadata_rx_vlan_tag(). + - + name: queue-index + doc: | + Device is capable of exposing receive packet queue index via + bpf_xdp_metadata_rx_queue_index(). - type: flags name: xsk-flags --=20 2.51.0 From nobody Thu Oct 2 02:05:18 2025 Received: from mail-ed1-f45.google.com (mail-ed1-f45.google.com [209.85.208.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 48E3430BB8A for ; Tue, 23 Sep 2025 20:00:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657652; cv=none; b=tK9QP4yRtY66UlWdGvJgZxoRw0pRN9j1quAWuRfLPTu5sROswOmSzx5qE9zD+5WagUCYaw8yALZ1eT/mW4M66LasbkTWF6YbEk+LoCNUCQHbLO46g+BX1Bf/M2U1zQgq16g2tWi/x+6MINHQnQ82eS9WHfGoZDawLd3SLt7l8b4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657652; c=relaxed/simple; bh=0fk/n7B9mEiC2MeLQRlJTessoCBaV440mO7d/PjdBWI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Kvrun7AmiXeU3gieY8202utaNmle/LlyOylRBt8GwUmvIXbam8RlvdLKATZSx/XkOo3QOtbI2lQOqzcBGdHc41gpzi+NW1k3aWNt6fCvcBjZqz13W0m7FNI2xkucpATkxdKBX9IGSIw8OQYRhJdM2cuUnrNo8Av73XWSL004+Xw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=QOKr9NwM; arc=none smtp.client-ip=209.85.208.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="QOKr9NwM" Received: by mail-ed1-f45.google.com with SMTP id 4fb4d7f45d1cf-63445df7d83so357364a12.0 for ; Tue, 23 Sep 2025 13:00:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1758657648; x=1759262448; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=RxvGwdECme9sva+F1ujIW8jaKUJIsBLHPhmAsgPJYCQ=; b=QOKr9NwM/6or7EQebm5FE7VP3tOWQMPUKsh/107AMXeUNWsDB0R3F1KuSvB8poPTrg iTTGpClFIY2RCEirkfwu2C31vOBHY8+jNKt+xVTKqBWvAVTzHHD+o8kEu4lIRe8yeKiP G4uWeXFNfybb+cu11YBcb4Jfh6yyMcXxWPei60w+ezC6AYBKW/QWErcTYqm1tlaC+QcG 2fzvNDOChGNsDZx7Qj5RxJTG/xD4duO6hkNaGcopWW+TVx9GUMRmOKgBZe8+aTfHDkM2 aNKDu7x6Wx0GL4YpmdtpwyYQtp4j7rJyhr85qtPgkTiulzNcHdyTIgWXpPg0ow1Kkr+5 Hk+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758657648; x=1759262448; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RxvGwdECme9sva+F1ujIW8jaKUJIsBLHPhmAsgPJYCQ=; b=XC4ndwCrqgvxK95LqKVDhpBt4kQ/xq8oELdcxQ3Hgvj3gcm1PzDmVPmwZemRXn/WMc 0/fzF+OXj6rae9cG8rHFpMWqMFVBcvdvyA+z+kCxM6kqVxxnBxRmGCFcMTatua7JyO/p wJCTr1DvfPGndK55plmyrnMuCn0IipYpzHwhG+F+FDc3I9W56oWIil5+Q1+35IufemOj bYEH8VuKhRw6dTUVemyC6ljkQJylJy9Br+OCHhQ7ky2j0mYG19CLXvq/2iS76nEY63T0 0AUReujgM7CE5chqXUGO2aEBo4Ey1wMmQXnQhT42LnBRiRaU/1cccOYCjzWKGGt435O7 kB3Q== X-Forwarded-Encrypted: i=1; AJvYcCVmeEvDDvrnay2E9KIxk2NjrtKNBw2grjqrNyoJ6LG9S31klu+iklRkIq7yDsJ50uWnuPmJ+G0mDUMCiVk=@vger.kernel.org X-Gm-Message-State: AOJu0YzqmyaYd5CKNyNihc9RIS2E5lOUCp6Kiqxo98B2PIuKdOMrl30C /SnEfBCgTVHfltJ8vna5UT8Rl8h3+1y7crd/z6juNqMqYk/sUQjgo9+h X-Gm-Gg: ASbGncsDoUmy0TX67taWpIv5yPiiEZlcXuOIqqmtGTpppKY+SmQvXIlmK1a+3HvhuOa rVzmQkl1jmoqzAu8+xRPRbsBghT17+BO2uMlV4YYUmypXemcpDTTzIjk/sAPwgtatLM9OYjyHC9 m+6tM+0bvBADEcUUm57NC21tFGcZQGEicQbdEfv1TfehFk/7hs9fSZRWm2diRnsj+deX2GAb35J Dskze39nb5FyTHCBqo5ZxLNB1dGTvGXwVqx4liJl7vqHP67redsQ4MGswliwZb6dvE/SKdUUHqL +9pq7chPuKsiKTOUODAUoZFfSo4nBJzyZsJVcO0pEPvPIN21kOkPybBGgqn6cooYCF4S1jCEl0D VQCR78W71lD67uvIF6geq/XCsDWCS0nah9V8= X-Google-Smtp-Source: AGHT+IE9jKk/zzdKDwXkO7sxSkoqe/jjpTEgScJwrOwZYkbO90+nHVble2JF4n49Nmv6GbSPvrhTqg== X-Received: by 2002:a17:907:940f:b0:af9:6580:c34f with SMTP id a640c23a62f3a-b302ae307b6mr174461766b.9.1758657648256; Tue, 23 Sep 2025 13:00:48 -0700 (PDT) Received: from bhk ([165.50.1.144]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b2ac72dbe92sm672074066b.111.2025.09.23.13.00.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Sep 2025 13:00:48 -0700 (PDT) From: Mehdi Ben Hadj Khelifa To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, donald.hunter@gmail.com, andrew+netdev@lunn.ch, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, matttbe@kernel.org, chuck.lever@oracle.com, jdamato@fastly.com, skhawaja@google.com, dw@davidwei.uk, mkarsten@uwaterloo.ca, yoong.siang.song@intel.com, david.hunter.linux@gmail.com, skhan@linuxfoundation.org Cc: horms@kernel.org, sdf@fomichev.me, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, Mehdi Ben Hadj Khelifa Subject: [PATCH RFC 2/4] net: xdp: Add xmo_rx_queue_index callback Date: Tue, 23 Sep 2025 22:00:13 +0100 Message-ID: <20250923210026.3870-3-mehdi.benhadjkhelifa@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> References: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Introduce xmo_rx_queue_index netdev callback in order allow the eBPF program bounded to the device to retrieve the RX queue index from the hw NIC. Signed-off-by: Mehdi Ben Hadj Khelifa --- include/net/xdp.h | 5 +++++ net/core/xdp.c | 15 +++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/include/net/xdp.h b/include/net/xdp.h index b40f1f96cb11..edbf66c31f83 100644 --- a/include/net/xdp.h +++ b/include/net/xdp.h @@ -547,6 +547,10 @@ void xdp_attachment_setup(struct xdp_attachment_info *= info, NETDEV_XDP_RX_METADATA_VLAN_TAG, \ bpf_xdp_metadata_rx_vlan_tag, \ xmo_rx_vlan_tag) \ + XDP_METADATA_KFUNC(XDP_METADATA_KFUNC_RX_QUEUE_INDEX, \ + NETDEV_XDP_RX_METADATA_QUEUE_INDEX, \ + bpf_xdp_metadata_rx_queue_index, \ + xmo_rx_queue_index) \ =20 enum xdp_rx_metadata { #define XDP_METADATA_KFUNC(name, _, __, ___) name, @@ -610,6 +614,7 @@ struct xdp_metadata_ops { enum xdp_rss_hash_type *rss_type); int (*xmo_rx_vlan_tag)(const struct xdp_md *ctx, __be16 *vlan_proto, u16 *vlan_tci); + int (*xmo_rx_queue_index)(const struct xdp_md *ctx, u32 *queue_index); }; =20 #ifdef CONFIG_NET diff --git a/net/core/xdp.c b/net/core/xdp.c index 491334b9b8be..78c0c63e343c 100644 --- a/net/core/xdp.c +++ b/net/core/xdp.c @@ -962,6 +962,21 @@ __bpf_kfunc int bpf_xdp_metadata_rx_vlan_tag(const str= uct xdp_md *ctx, return -EOPNOTSUPP; } =20 +/** + * bpf_xdp_metadata_rx_queue_index - Read XDP frame RX queue index. + * @ctx: XDP context pointer. + * @queue_index: Return value pointer. + * + * Return: + * * Returns 0 on success or ``-errno`` on error. + * * ``-EOPNOTSUPP`` : means device driver does not implement kfunc + * * ``-ENODATA`` : means no RX queue index available for this frame + */ +__bpf_kfunc int bpf_xdp_metadata_rx_queue_index(const struct xdp_md *ctx, = u32 *queue_index) +{ + return -EOPNOTSUPP; +} + __bpf_kfunc_end_defs(); =20 BTF_KFUNCS_START(xdp_metadata_kfunc_ids) --=20 2.51.0 From nobody Thu Oct 2 02:05:18 2025 Received: from mail-ej1-f41.google.com (mail-ej1-f41.google.com [209.85.218.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D3F97309F0E for ; Tue, 23 Sep 2025 20:00:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657655; cv=none; b=l488+v3DMjVOVHMVM96xazYn3QjMxBjbQ6KhDQ+qQq/6ors1ZW3HIpPaRwboP7LI/fCBenuVAx3jMupdi0WrNrhc3xGKsFx63Ut8kjQBGkXgARkVyMPJnqwNj9zmydda5rFrgzE1JoFndHNQsESXIUmZ8gT5V8rf9nS0LjgrDwk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657655; c=relaxed/simple; bh=C8XXts6akLb11nM2mMQrQ1mX2Cb7JSe8mH+9EyknL/E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YoA7SaEVqSmhX6sIWRPedX8fWNFE/QpDzo34qqZNQ/F7Ye4NO9Bsd/QM05+TcOse34o5fVdDnNiSU8WMR2r0VI4ndAEucv7eb46ZSgZZfKzrWONAdG7VVtKida1h7WODFZi3SjK+Jf5A5SN1vLARr4zlG/63XfQ74Xv+uCk5KaY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=B73wVImF; arc=none smtp.client-ip=209.85.218.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="B73wVImF" Received: by mail-ej1-f41.google.com with SMTP id a640c23a62f3a-b2a159bcd94so57738266b.1 for ; Tue, 23 Sep 2025 13:00:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1758657652; x=1759262452; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=xFnHRlaDkZFQz8z/nxD9a5/SArA8MCeQHjKgdaq4v7Q=; b=B73wVImFx1/+bpOdlPvGQFEHw3yidTfo/uteXEpzUyPoDoqJO5G37eqXhHrdb+eNJ/ 8SburhE9p0/e34iNF29NQVr0H5ziQ2ov5Cqypk2naHOqWHHibdrLLEbB2I6oxaUMDjsC p2obl+iQhZCLZ0ZSP4iPXETSCYoj6Gl581BO0L1sG/Q/KAjIGMLB5M6VOOEIWh8hj4e9 fDVVwTUmI7yFrtg29oXPGlr4HY1V9/xa4weclP5c+lS+bgoo+5buo+LKZ04Qgl/bnCfx MEi0A056FjNTGAfltLoSOdXZKBwhqlYQcM80mMoPsB4/sus4bqHQbknvp+Qbnp9mMkv0 WqvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758657652; x=1759262452; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xFnHRlaDkZFQz8z/nxD9a5/SArA8MCeQHjKgdaq4v7Q=; b=Vl8U0g5gACDyeofrSSNI8tUCXMX3Nc2+ikRjEhYpPMyvDqy8cjxpdjMmvWs6hBc39a vVZupOho7HVNQ593Pu57fXrn+k1NFrIHVi08jCLJEdXGlUyVznmMHtG4DFhPBH2VtrAZ KgCnjl3VnLpdgTkrpPdCw/wVC/XM9urYu1Ak5moOgu1AlABoV7fNbfgd/fcVzstPJ3mo ph5f97q2HpT8nFywMNydKYN3iA4E7ZGCCRFdwzTTcI7VXgEHTfNtG3fSBuTNyDd12tgC VUd3dqyPEhjbP2SGlpEdPp6KEze2UrrK5460OOMmNwtjIiKBE2LAX8KWj9oXsI7Zt8Tp nhsA== X-Forwarded-Encrypted: i=1; AJvYcCXxiWukkUPHhyaW3L7AB9TBslrTOijUXAR162Dkr/I41xYqZbOx/ylXlJzZbk2wLyO72wjWAUg3l4k2P20=@vger.kernel.org X-Gm-Message-State: AOJu0Yxo1Ufa1g5g0M19XrknPugAaptlhNqwH6aQWzPPG86EMuzlVJmm dRhZ6ELqL/M3aqnS8p5vi/dxiFTFn10Tiz9wXmOdCZuuQYmtTAyRkxTu X-Gm-Gg: ASbGncvYnnwnDmuBHPcUg1xqx6cz2qFzytykhwvcAF6/g3luun4C2pIW7vRn2BxYAln uaivX3jjyJl7M9feet8jdrf1PqkoNBkaNIRc1mI7lVOGtQpT/3BxyRDjgYssMJQ5U5BUY1U41ZN NqfMkWHovwn68H2w9ir2lPMVnibJ3Zn76ywBZcTD56sTo3l/D8S5n6jrdS8gcVOFYeAsKjIJWBL 2y5k4dZVNw0Y5WKQU3dR1kAUYWb3n+vzu1isxmdQLWedYrl4Ly0xT1NUrrlIVogzqgQaelSnD3L pYdyUD+uBCNqXeSYe35crgtMdGQ0TTjQNaa3vj2fEjMgXkWiK2UyMVUJYv0K7zAiFlyI7GMX7ro JI6v4UtBfGJ01Om73xg0PlSAS X-Google-Smtp-Source: AGHT+IGhKcZdV0r8YP2ON3pdAtvi9EACajla8mdLJY/F2fjwqzyOEqYb9k1Ezx6pq7ms/ARYTztc8Q== X-Received: by 2002:a17:907:d8f:b0:b04:2d89:5d3a with SMTP id a640c23a62f3a-b302b80a6femr234862766b.7.1758657651892; Tue, 23 Sep 2025 13:00:51 -0700 (PDT) Received: from bhk ([165.50.1.144]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b2ac72dbe92sm672074066b.111.2025.09.23.13.00.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Sep 2025 13:00:51 -0700 (PDT) From: Mehdi Ben Hadj Khelifa To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, donald.hunter@gmail.com, andrew+netdev@lunn.ch, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, matttbe@kernel.org, chuck.lever@oracle.com, jdamato@fastly.com, skhawaja@google.com, dw@davidwei.uk, mkarsten@uwaterloo.ca, yoong.siang.song@intel.com, david.hunter.linux@gmail.com, skhan@linuxfoundation.org Cc: horms@kernel.org, sdf@fomichev.me, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, Mehdi Ben Hadj Khelifa Subject: [PATCH RFC 3/4] uapi: netdev: Add XDP RX queue index metadata flags Date: Tue, 23 Sep 2025 22:00:14 +0100 Message-ID: <20250923210026.3870-4-mehdi.benhadjkhelifa@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> References: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Added NETDEV_XDP_RX_METADATA_QUEUE_INDEX flag to both netdev.h files for the bpf_xdp_metadata_rx_queue_index() function. Signed-off-by: Mehdi Ben Hadj Khelifa --- include/uapi/linux/netdev.h | 3 +++ tools/include/uapi/linux/netdev.h | 3 +++ 2 files changed, 6 insertions(+) diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index 48eb49aa03d4..59033a607c16 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -46,11 +46,14 @@ enum netdev_xdp_act { * hash via bpf_xdp_metadata_rx_hash(). * @NETDEV_XDP_RX_METADATA_VLAN_TAG: Device is capable of exposing receive * packet VLAN tag via bpf_xdp_metadata_rx_vlan_tag(). + * @NETDEV_XDP_RX_METADATA_QUEUE_INDEX: Device is capable of exposing rece= ive HW + * queue index via bpf_xdp_metadata_rx_queue_index(). */ enum netdev_xdp_rx_metadata { NETDEV_XDP_RX_METADATA_TIMESTAMP =3D 1, NETDEV_XDP_RX_METADATA_HASH =3D 2, NETDEV_XDP_RX_METADATA_VLAN_TAG =3D 4, + NETDEV_XDP_RX_METADATA_QUEUE_INDEX =3D 8, }; =20 /** diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/n= etdev.h index 48eb49aa03d4..59033a607c16 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -46,11 +46,14 @@ enum netdev_xdp_act { * hash via bpf_xdp_metadata_rx_hash(). * @NETDEV_XDP_RX_METADATA_VLAN_TAG: Device is capable of exposing receive * packet VLAN tag via bpf_xdp_metadata_rx_vlan_tag(). + * @NETDEV_XDP_RX_METADATA_QUEUE_INDEX: Device is capable of exposing rece= ive HW + * queue index via bpf_xdp_metadata_rx_queue_index(). */ enum netdev_xdp_rx_metadata { NETDEV_XDP_RX_METADATA_TIMESTAMP =3D 1, NETDEV_XDP_RX_METADATA_HASH =3D 2, NETDEV_XDP_RX_METADATA_VLAN_TAG =3D 4, + NETDEV_XDP_RX_METADATA_QUEUE_INDEX =3D 8, }; =20 /** --=20 2.51.0 From nobody Thu Oct 2 02:05:18 2025 Received: from mail-ej1-f46.google.com (mail-ej1-f46.google.com [209.85.218.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4DE1E30C61C for ; Tue, 23 Sep 2025 20:00:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.46 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657658; cv=none; b=bf0Zx9GLn/RuASr+6fl3NTDjlJ/7PtRnL/BtR8uYw/IhhTWC46AUOJeQbq/gmj199T3eHp1fuY0Iq6Ojjy3AGMLDctggaJII2m9WO0IWLrdlk4bE3l2veTJQhGvE5zewd9/FCc4a92SJ5/hs5ZuSer3RbezUZGRM5KvoqoqMY8w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758657658; c=relaxed/simple; bh=za6eoflza+eI0daPO52VrArrXQQh9oKqLFL2yU7G4qY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Zm6p8CfojwXez2r1shtwlqfnRt8NDsMa1WuBMrTZZFtRoaXqpAIT05LyBlNJJ/zDuiVcgs4WS2sqTr0q3K8Rgji1zg+nMEHb3/OtePkhj8s5sPcJpPCZTlsJI8xDbI9TLECq5zd2s+i9F7pMZO4dI40r7eu2av9nNk25x+mO9uQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=c4jOnM9Q; arc=none smtp.client-ip=209.85.218.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="c4jOnM9Q" Received: by mail-ej1-f46.google.com with SMTP id a640c23a62f3a-b2a1a166265so49778766b.2 for ; Tue, 23 Sep 2025 13:00:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1758657656; x=1759262456; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=jvM5EG3LMIQuZITndtrZP0Eki684ON50PFEBay054lA=; b=c4jOnM9QEkWDqPrR+CsDuHhhX2WaAYDyMzb0l2y9LULpcKUAItkDpwx5lt6sjg4kE+ UyPAFDmu4aR2C5snhubvV28QfEVemUgyCWRvisVCCCtw36vDRb/fgyIausDx0hNS7+xB 57jqpD25HqdsXSXljGRYdGUfnjEXAFbQ7tRukTAtUzlFgb7gjcHlLxIdbLmijBrHhplW QXCoglWLdYwq97XzTljwFvTr1dlmJZse6/8/FGPS3aNtVUUL+cq8i55XS+mWTpYQcdLZ suuPqkJnieST71cj0UPW5T8J/XmqrgQFIarUYWIDiIAHpbJN4c6bRBxXmyh+4IEipQrM Z5Vg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758657656; x=1759262456; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=jvM5EG3LMIQuZITndtrZP0Eki684ON50PFEBay054lA=; b=lgCO2IgC8eXMHrz9hwy7fHuRhb6WZ74NPU9aAFtoD/CvDLmfy/MzWJhFY+iPF5mNQK 9lhmopMY9h1Ha5LyLSa7VujauqjlDW8ROTeNAEoSq1bUg3koqpabjJOvhMvPeoknpRL3 AC+YrX1iazuGLI07lXzl6TVTDd3CKUUw5n6GNqQYzZZbAJXFjX/6Sp0K8eyjSYiYHnj3 /P3Xk/2mbw0isg502xquTmRw9qX3lJUkHx1CmP/W95wRDjzZ56Q4rIadaKGXTUGhl31V pr1Qj8QfbLWm0p8hIWTrxfmm3nKnYs9KcdW7aPbFTR7zk+KWWpnIUhHS9mSuIDLUZDba C8Kw== X-Forwarded-Encrypted: i=1; AJvYcCWP6PhenimrJrxYv0FHMv/J/ZeADJSztOFFb7yNVuDO7AnfWgvtANJ1HOlQ9MK5CB1eYK34KOt+P88rKIw=@vger.kernel.org X-Gm-Message-State: AOJu0YxbUPE0HAJRMuhEX/Pp+YJJRCmhVfgQ/OEAV5yXoRDuGTIytGzq XzIgp+iBTPLZ8CaZ1Ry4HSeLeSQvSvVJL+Xgae9/7qSSg0G0hdpGocI1 X-Gm-Gg: ASbGnctCvNBEU6r3DOiG9chCxewhLPe0LF/uQxfj4j9asgEpweKvjdmxmqm8+Ui4kO2 eR80jeoOM5hwiCv72hcH5T6D56GpeQw0LGltjiks1SDRtxP8WZJbDN61Uq7Vm4TeCAp2eFRaoBj tAOdcmjNFr6cqfvRbtUcMn/z+cyCnYq2bMAFye8kFjKqXq6lP3+1dY4ViidORrTD/0/Sl+OzOQ1 Sst5qz3236VFl1dq6LJHfD8m7bWoMyhvmZzpR05hofPDYkFB7Ka7tlbMD6e3CDlvqKdgE8YA4qO MgHvWZOr0pSwiiVoQ3ciI26LuoBi3ncL5QNthohxEGNXucEo9uAoVItPuJ1kCETraRuP9qOQiDG Uyil2O3hfGGH6WZn1sFUlm3Z0 X-Google-Smtp-Source: AGHT+IFnbqnzDpvcF1npAo3gJlRiN0aWJNOZlV40ujMaGftot7QGowUdecTibpSbqF5TWABjiIk+nA== X-Received: by 2002:a17:907:3f1b:b0:afe:88ac:ab9 with SMTP id a640c23a62f3a-b302c10a6acmr180708366b.9.1758657655543; Tue, 23 Sep 2025 13:00:55 -0700 (PDT) Received: from bhk ([165.50.1.144]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b2ac72dbe92sm672074066b.111.2025.09.23.13.00.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Sep 2025 13:00:55 -0700 (PDT) From: Mehdi Ben Hadj Khelifa To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, donald.hunter@gmail.com, andrew+netdev@lunn.ch, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, matttbe@kernel.org, chuck.lever@oracle.com, jdamato@fastly.com, skhawaja@google.com, dw@davidwei.uk, mkarsten@uwaterloo.ca, yoong.siang.song@intel.com, david.hunter.linux@gmail.com, skhan@linuxfoundation.org Cc: horms@kernel.org, sdf@fomichev.me, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, Mehdi Ben Hadj Khelifa Subject: [PATCH RFC 4/4] net: veth: Implement RX queue index XDP hint Date: Tue, 23 Sep 2025 22:00:15 +0100 Message-ID: <20250923210026.3870-5-mehdi.benhadjkhelifa@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> References: <20250923210026.3870-1-mehdi.benhadjkhelifa@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Implement xmo_rx_queue_index callback in veth driver to export queue_index for use in eBPF programs. Signed-off-by: Mehdi Ben Hadj Khelifa --- drivers/net/veth.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index a3046142cb8e..be76dd292819 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -1692,6 +1692,17 @@ static int veth_xdp_rx_vlan_tag(const struct xdp_md = *ctx, __be16 *vlan_proto, return err; } =20 +static int veth_xdp_rx_queue_index(const struct xdp_md *ctx, u32 *queue_in= dex) +{ + const struct veth_xdp_buff *_ctx =3D (void *)ctx; + + if (!_ctx->xdp.rxq) + return -ENODATA; + + *queue_index =3D _ctx->xdp.rxq->queue_index; + return 0; +} + static const struct net_device_ops veth_netdev_ops =3D { .ndo_init =3D veth_dev_init, .ndo_open =3D veth_open, @@ -1717,6 +1728,7 @@ static const struct xdp_metadata_ops veth_xdp_metadat= a_ops =3D { .xmo_rx_timestamp =3D veth_xdp_rx_timestamp, .xmo_rx_hash =3D veth_xdp_rx_hash, .xmo_rx_vlan_tag =3D veth_xdp_rx_vlan_tag, + .xmo_rx_queue_index =3D veth_xdp_rx_queue_index, }; =20 #define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HW_CSUM | \ --=20 2.51.0