From patchwork Tue Mar 5 02:01:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mina Almasry X-Patchwork-Id: 13581516 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (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 9FA7618038 for ; Tue, 5 Mar 2024 02:02:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709604124; cv=none; b=e/k9/9ZCpS6B75zOFmBIcHv9aqYLx5/DcAnK4Fuzt03ri2zHsdiTodE6b8LGDELBzZf3HHHVFpmho+WNjRzTEwAVWCkZbGJMX7IBgeS3Rl6A705tU2ZWARfhQzRRFnDv6EyswAIPXByqaEsOTScp1xjKB6lnCIDlavkTaIpZr0c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709604124; c=relaxed/simple; bh=VcAq+8sPLS5iB4yXv3NBRB5uIgbi5Zb5VcGf/lhRiGs=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=mErUVarl2aVavglHs2f8Mz/p5m/i9AnXg79DN4aOxH/gWhUIMQ97VEPfjIWmKtrsxovwxsJPsfiZvjOVuIfb+qGJsFG4GGPOuxeAhx26GV4sZEY+EGEn+f1dlqPx6XHhXOqRnOiBtEsh2bEcSvxPgNy1EAm3cHq7uB3BJDrzfcg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--almasrymina.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=VI6+zijl; arc=none smtp.client-ip=209.85.128.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--almasrymina.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="VI6+zijl" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-608ad239f8fso82888947b3.0 for ; Mon, 04 Mar 2024 18:02:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1709604119; x=1710208919; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Na1UZEy/GVYcP9OgTRpAH79YV4s5dC/8SJ0CqP6QkUQ=; b=VI6+zijlMWFPNIRtJUKlLNpxzccMFnH10j7gRmwN7u9DrZXxO8AbpNbb1OBWNNkNBs 0c/d9PSACvG7cH3t8cZ/Yn5qJWS5hIOOMSd64qCiO9xS39/NhmeZtJT6ETp3vrOQWYkD 0oJ7L3En2YzujfF8o/4utN7jN7UwdIag4Gop0VLG5w4L08ivBIGAgvzLkMwhn5OOf9k6 nCUqxxarryKZveuao43r/g6cmEzhIaIRRAJMXrCNJtVS55NdP/AYfubm+0UkDzKHihU0 nYYws27yeW05QSCorN1cqx9+Rfv/iGhEhrLnYTQkAisYrqte9HgUwpy5t3Joh2oH3d8/ 16rg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709604119; x=1710208919; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Na1UZEy/GVYcP9OgTRpAH79YV4s5dC/8SJ0CqP6QkUQ=; b=Tg0hlWtuHCPtKHJclTLtdnKvOTimWUrVoHwa8dXwtmg3WRBV+PXjKxdKzSQyhDFjch OTnPveT+9EPgAN7gzEJmRQydQp5NWi0YW0aWqJW56UPWT8tAFzYDTC0llDpqvnRpiTov 9gTzSwSopKJOJoKPkesXfeKJqf9rlVbY9jemYF9WMn//F8jeFuBAJgzhrPmLDLXMSPom 5iSDIDyw3ODd5Zb56rNLxRch/MqrF+jR6U/ZeWzuWhttaKahQnqDC53HZWE5Hzq8EihE 962Nrt+hOLokqJcWYA/UG9J5iBL2TIVsc8e02tFlBiJmZJtJRhZWNHkviIfIqlgjEzN9 u1hA== X-Forwarded-Encrypted: i=1; AJvYcCUA7+PpcNL/HpXd1Q+3BBTkHEvkbJaOHCgiHHDSBxNrEfsJTK6bGLyoukRwlXgCx608EyIfDrH1oIWFPvwUmeOFRaz3ukmNp/1LtaI= X-Gm-Message-State: AOJu0Yy9Z/CEznb5mfcFs/Szd+zju7BuL2tp0+crq6gxR0jCUT7LDopG to0U6ULGg0UAd1u7Msk+Hj59UDyio7rusGJiqMNGTDdQENzc6mLxa78YA0s4hZqLNZxXfb/zp3V uIezW3iOOgyVuc6DTRPThMg== X-Google-Smtp-Source: AGHT+IGpPTZKtcPN8U9sdm9ezESJ/sJ5oiNSY59vHDkx0uXjzdGQiK9QV6X9ugUC+YOriupaZX7copF8kyJbbuA8Ug== X-Received: from almasrymina.svl.corp.google.com ([2620:15c:2c4:200:b614:914c:63cd:3830]) (user=almasrymina job=sendgmr) by 2002:a05:6902:1004:b0:dc2:3441:897f with SMTP id w4-20020a056902100400b00dc23441897fmr2713866ybt.6.1709604119594; Mon, 04 Mar 2024 18:01:59 -0800 (PST) Date: Mon, 4 Mar 2024 18:01:36 -0800 In-Reply-To: <20240305020153.2787423-1-almasrymina@google.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240305020153.2787423-1-almasrymina@google.com> X-Mailer: git-send-email 2.44.0.rc1.240.g4c46232300-goog Message-ID: <20240305020153.2787423-2-almasrymina@google.com> Subject: [RFC PATCH net-next v6 01/15] queue_api: define queue api From: Mina Almasry To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-arch@vger.kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Mina Almasry , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jonathan Corbet , Richard Henderson , Ivan Kokshaysky , Matt Turner , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Andreas Larsson , Jesper Dangaard Brouer , Ilias Apalodimas , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Arnd Bergmann , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , David Ahern , Willem de Bruijn , Shuah Khan , Sumit Semwal , " =?utf-8?q?Christian_K=C3=B6nig?= " , Pavel Begunkov , David Wei , Jason Gunthorpe , Yunsheng Lin , Shailend Chand , Harshitha Ramamurthy , Shakeel Butt , Jeroen de Borst , Praveen Kaligineedi This API enables the net stack to reset the queues used for devmem. Signed-off-by: Mina Almasry --- include/linux/netdevice.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c41019f34179..3105c586355d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1435,6 +1435,20 @@ struct netdev_net_notifier { * struct kernel_hwtstamp_config *kernel_config, * struct netlink_ext_ack *extack); * Change the hardware timestamping parameters for NIC device. + * + * void *(*ndo_queue_mem_alloc)(struct net_device *dev, int idx); + * Allocate memory for an RX queue. The memory returned in the form of + * a void * can be passed to ndo_queue_mem_free() for freeing or to + * ndo_queue_start to create an RX queue with this memory. + * + * void (*ndo_queue_mem_free)(struct net_device *dev, void *); + * Free memory from an RX queue. + * + * int (*ndo_queue_start)(struct net_device *dev, int idx, void *); + * Start an RX queue at the specified index. + * + * int (*ndo_queue_stop)(struct net_device *dev, int idx, void **); + * Stop the RX queue at the specified index. */ struct net_device_ops { int (*ndo_init)(struct net_device *dev); @@ -1679,6 +1693,16 @@ struct net_device_ops { int (*ndo_hwtstamp_set)(struct net_device *dev, struct kernel_hwtstamp_config *kernel_config, struct netlink_ext_ack *extack); + void * (*ndo_queue_mem_alloc)(struct net_device *dev, + int idx); + void (*ndo_queue_mem_free)(struct net_device *dev, + void *queue_mem); + int (*ndo_queue_start)(struct net_device *dev, + int idx, + void *queue_mem); + int (*ndo_queue_stop)(struct net_device *dev, + int idx, + void **out_queue_mem); }; /**