From nobody Fri Oct 3 20:30:36 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7310F3728AD; Tue, 26 Aug 2025 16:14:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756224863; cv=none; b=mPEoeGaJj7By41aPhCbJpmPFAAMUdrpkQwjPorBQPx/gvSt/+dWzAS8UfM6A+h57NGUtb6a4RWIrPPQSfHyEIRh+Dl17n8v6O1sirgItdM+LPso/OGkB+1b5H9r5w7tEkri6xquv59aTbYkGRKs7qbkNh+n4dfCxjeY1DW01Zqs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756224863; c=relaxed/simple; bh=SxnuiHVydamTUKCJfnvkSyB7La/z3S5jqAnbJC+dZf8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UM6CTZlCt0KumINMYN1IYCQ6+Lg1ZpIFCIx9Zo6A2qtWTyudwp7yOH2V0WhR5OcnNKy+Pjv9OwA7xsDh2SU4Fee8qAUJrNZUsd5fPIhSZ1p2PI7nYtpAowy0IXf16NK94OfLaFNMDUb6X+WDuN+G+u3uUUagoJAFUNnZJcGKmtQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=PNoErz6E; arc=none smtp.client-ip=192.198.163.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="PNoErz6E" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1756224861; x=1787760861; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SxnuiHVydamTUKCJfnvkSyB7La/z3S5jqAnbJC+dZf8=; b=PNoErz6EuOAg94/dUnnPOzqzBmrcJVbZumH1/ItNI9zegJddmqNWc72b 2WCQnOTYdUAuppC+aUz9ajTl7FNk+RcDxaofr/9mpKky1x3NG6kwdFB+W cEKAzdKjxdKPE24FmOw5jtdVPcxR9XXv/1NhPkRyizJ2ChOc1TiO9sspB fCFzWBlk7PY0JrChsh9dP9bBFvkuM+AU80OPz6ON4WODC2kVZRzZedbJl 5Wuw1vmRTS9SHY0Vbz5wnW8nDX6IStIPFwpBBF7+X7Ii170haonlcQokT c9PcoSfTpRJ6KSfNmDmYvh60l/uUvj63fWTXS9zW64rdzbPjFG9rASXch g==; X-CSE-ConnectionGUID: bev/enV0RE2L+0qf7/dXBg== X-CSE-MsgGUID: tO1ePug/S8qBegItcwQg6Q== X-IronPort-AV: E=McAfee;i="6800,10657,11534"; a="46045104" X-IronPort-AV: E=Sophos;i="6.18,214,1751266800"; d="scan'208";a="46045104" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Aug 2025 09:14:21 -0700 X-CSE-ConnectionGUID: 7j1vDRS3RT6fRUXwBhs8SQ== X-CSE-MsgGUID: t3HatVNrQpGpwf9BR0E/Qw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,214,1751266800"; d="scan'208";a="200562651" Received: from newjersey.igk.intel.com ([10.102.20.203]) by orviesa002.jf.intel.com with ESMTP; 26 Aug 2025 09:14:17 -0700 From: Alexander Lobakin To: intel-wired-lan@lists.osuosl.org Cc: Alexander Lobakin , Michal Kubiak , Maciej Fijalkowski , Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Simon Horman , nxne.cnse.osdt.itp.upstreaming@intel.com, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH iwl-next v5 12/13] idpf: add support for .ndo_xdp_xmit() Date: Tue, 26 Aug 2025 17:55:06 +0200 Message-ID: <20250826155507.2138401-13-aleksander.lobakin@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250826155507.2138401-1-aleksander.lobakin@intel.com> References: <20250826155507.2138401-1-aleksander.lobakin@intel.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" Use libeth XDP infra to implement .ndo_xdp_xmit() in idpf. The Tx callbacks are reused from XDP_TX code. XDP redirect target feature is set/cleared depending on the XDP prog presence, as for now we still don't allocate XDP Tx queues when there's no program. Reviewed-by: Maciej Fijalkowski Signed-off-by: Alexander Lobakin --- drivers/net/ethernet/intel/idpf/xdp.h | 2 ++ drivers/net/ethernet/intel/idpf/idpf_lib.c | 1 + drivers/net/ethernet/intel/idpf/xdp.c | 20 ++++++++++++++++++++ 3 files changed, 23 insertions(+) diff --git a/drivers/net/ethernet/intel/idpf/xdp.h b/drivers/net/ethernet/i= ntel/idpf/xdp.h index 986156162e2d..db8ecc1843fe 100644 --- a/drivers/net/ethernet/intel/idpf/xdp.h +++ b/drivers/net/ethernet/intel/idpf/xdp.h @@ -102,5 +102,7 @@ static inline void idpf_xdp_tx_finalize(void *_xdpsq, b= ool sent, bool flush) void idpf_xdp_set_features(const struct idpf_vport *vport); =20 int idpf_xdp(struct net_device *dev, struct netdev_bpf *xdp); +int idpf_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, + u32 flags); =20 #endif /* _IDPF_XDP_H_ */ diff --git a/drivers/net/ethernet/intel/idpf/idpf_lib.c b/drivers/net/ether= net/intel/idpf/idpf_lib.c index 1c62998cc0e7..6bf563fa0966 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_lib.c +++ b/drivers/net/ethernet/intel/idpf/idpf_lib.c @@ -2612,4 +2612,5 @@ static const struct net_device_ops idpf_netdev_ops = =3D { .ndo_hwtstamp_get =3D idpf_hwtstamp_get, .ndo_hwtstamp_set =3D idpf_hwtstamp_set, .ndo_bpf =3D idpf_xdp, + .ndo_xdp_xmit =3D idpf_xdp_xmit, }; diff --git a/drivers/net/ethernet/intel/idpf/xdp.c b/drivers/net/ethernet/i= ntel/idpf/xdp.c index e6b45df95cd3..b6a8304d61f9 100644 --- a/drivers/net/ethernet/intel/idpf/xdp.c +++ b/drivers/net/ethernet/intel/idpf/xdp.c @@ -322,8 +322,26 @@ LIBETH_XDP_DEFINE_START(); LIBETH_XDP_DEFINE_TIMER(static idpf_xdp_tx_timer, idpf_xdpsq_complete); LIBETH_XDP_DEFINE_FLUSH_TX(idpf_xdp_tx_flush_bulk, idpf_xdp_tx_prep, idpf_xdp_tx_xmit); +LIBETH_XDP_DEFINE_FLUSH_XMIT(static idpf_xdp_xmit_flush_bulk, idpf_xdp_tx_= prep, + idpf_xdp_tx_xmit); LIBETH_XDP_DEFINE_END(); =20 +int idpf_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, + u32 flags) +{ + const struct idpf_netdev_priv *np =3D netdev_priv(dev); + const struct idpf_vport *vport =3D np->vport; + + if (unlikely(!netif_carrier_ok(dev) || !vport->link_up)) + return -ENETDOWN; + + return libeth_xdp_xmit_do_bulk(dev, n, frames, flags, + &vport->txqs[vport->xdp_txq_offset], + vport->num_xdp_txq, + idpf_xdp_xmit_flush_bulk, + idpf_xdp_tx_finalize); +} + void idpf_xdp_set_features(const struct idpf_vport *vport) { if (!idpf_is_queue_model_split(vport->rxq_model)) @@ -378,6 +396,8 @@ static int idpf_xdp_setup_prog(struct idpf_vport *vport, if (old) bpf_prog_put(old); =20 + libeth_xdp_set_redirect(vport->netdev, vport->xdp_prog); + return ret; } =20 --=20 2.51.0