From nobody Sun Oct 5 20:01:11 2025 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 A8A922E6D3F; Wed, 30 Jul 2025 16:08:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753891739; cv=none; b=YT6yApHal1wkaP/KpMDbBjdXY8koIj3JsAhiLdCQfjYxBIMUj5OdJUN2ipofiS8tZIqbC+o4ykBAQA+kqpKyZ+B2Id8QlDSKe4mUHD+I8yB8nTqELi9E5b+vm38i9PMVNEXLg7NetF5wD+JtWytiQLSJ5Ky1da81H6dxXOp5/sY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753891739; c=relaxed/simple; bh=84CnvqR7F7AFKlLGFFrmnx2yt1Nww2D2CDTTNcL0T8o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Bc6p8kS8c1gAW9OfkDI3sX0rWqtSk7EaTKsCiAZanz3jUKu4QMtdCTAQcS1hcIq07zGHkcPUWIXQzPKUlMdV9MMuaRYEAyAxh0Pnmsjd0w360TaTyoW/XYcwrDEMtDKYUTAoaHRxJB6RxwX/OMslazKfSg7P6dLc0eGvIF2rxmk= 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=cm7kDnuq; arc=none smtp.client-ip=198.175.65.13 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="cm7kDnuq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1753891738; x=1785427738; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=84CnvqR7F7AFKlLGFFrmnx2yt1Nww2D2CDTTNcL0T8o=; b=cm7kDnuqtBQPAs6j3IKmcQI67Vgcr7uj0KsKWGPhMNOI+o6WnhPfXW4V yV6nisFp5HIrS2dXNUBRJTc2afzgf3DCoGWFVoiqJclUAcNCaUgBY3PX9 oEOpkT3pTw0i+JrvWS1RBqoEUUYuc/Y5bfFTvVja9v7mJ8YiSVu4EP0jZ c1NMhtnEG8Se2Fn4srsp/8V8mYtTKQEsnw5Ih+6f6zDXS3pr+1YjciPD3 VNgWM1Sj6SbN8WmbgeZ/G8RLQMBREtMtVxBUAmY54FHyMtmlfbxhHdUb4 PCx2sx0q+JRIdEcBnlyODOmW4RPwPVwxmbqLk16S2zRXwBZNJa4p7UWSD Q==; X-CSE-ConnectionGUID: 8+RgjmIFTcW+/JF+HdJHNg== X-CSE-MsgGUID: LD+vXubuSZ2a3wvmufpHNQ== X-IronPort-AV: E=McAfee;i="6800,10657,11507"; a="67278994" X-IronPort-AV: E=Sophos;i="6.16,350,1744095600"; d="scan'208";a="67278994" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jul 2025 09:08:58 -0700 X-CSE-ConnectionGUID: T0o+CM0QSpioX8eNONcOWw== X-CSE-MsgGUID: yDZgZRiHT/2KMysiJzTxgQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,350,1744095600"; d="scan'208";a="163813073" Received: from newjersey.igk.intel.com ([10.102.20.203]) by fmviesa010.fm.intel.com with ESMTP; 30 Jul 2025 09:08:53 -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 v3 17/18] idpf: add support for .ndo_xdp_xmit() Date: Wed, 30 Jul 2025 18:07:16 +0200 Message-ID: <20250730160717.28976-18-aleksander.lobakin@intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250730160717.28976-1-aleksander.lobakin@intel.com> References: <20250730160717.28976-1-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 30c8899ea0f4..01b54331a4fc 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_lib.c +++ b/drivers/net/ethernet/intel/idpf/idpf_lib.c @@ -2524,4 +2524,5 @@ 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 d7ba2848148e..d2549f8b8e24 100644 --- a/drivers/net/ethernet/intel/idpf/xdp.c +++ b/drivers/net/ethernet/intel/idpf/xdp.c @@ -320,8 +320,26 @@ 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)) @@ -376,6 +394,8 @@ 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 2.50.1