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: 13581436 X-Patchwork-Delegate: kuba@kernel.org Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (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 B00DE1803A for ; Tue, 5 Mar 2024 02:02:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709604122; cv=none; b=EKQXrIagq4q/jDpRV64zL5OcEhvMtgmp1pkITa6vu0wvmDWC84RGP9osJS+wnUhnuaxYo0Jy2CrYfZy7IvKXp4YbH4sYrxEmX/hW7ZumkXXZe8E8MERduzDra8h0fg5+91R2YP3LY/7OH/V4J9hsPiI6VD+El64G6uA2CnD1GoM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709604122; c=relaxed/simple; bh=VcAq+8sPLS5iB4yXv3NBRB5uIgbi5Zb5VcGf/lhRiGs=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=PGTQS9SLhTbZyGACzlbOLhyFo+0nAfvPRIi0de2rKK2ycRGLyfRU9vqbj70SSYkbNXW6pacQFOcapl8RaGX2kNgUvfP23w3PZJKL3N4Kq6kvkXc9WRnVpwY3WahAuw3P32izHQW7u7wMvXh3LPBvW0pbjtzr/L9OBHfKbMtTjTQ= 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=SOAGPinq; arc=none smtp.client-ip=209.85.219.202 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="SOAGPinq" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-dce775fa8adso9118383276.1 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=1709604120; x=1710208920; 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=SOAGPinqVL6jLI6F/9qU7rdsc1wI4Kab05iu4Eal0k5PFI7K5rXmfGdPKieAk0pBAA oGx/qepbdzcpLpo+3o6p11H/kYhpD1r/wtceTPnNFJ7EfQ4i0td+DmJvYjZwonOndeMg JuXtYENZii5Ep4SzuyccbI3Np3AGwqVT8INYZv2Ed6Cdd2xcD1b43oai0RjNgds989pq pRwp6svHhLUGhbNt5eV5LvVJ0N02c+7YyHtznAjVCv7rHn4+1xN2wVvaxtYDNE7wL4Y8 ST9FQMNb89vEVzH3pV/zJUX2+SR+MOOFfOzlJ1auEkVAtBIKVL148AJaj422gzQW5viE yQPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709604120; x=1710208920; 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=ELQWOEuWTjYCw4gmH80VXK5btkIrhqjy9LzFxo1p1Qu7oWvo9frn4fEejiRr+U1CVG e/9QcB7dWutBVS3lElHkVc4XhL2Ckw37s3T1B4e9m/Dd4kx3rw5yGxscM0HgVQdNxk5E JLVVPzTxnMXKuFUbZ4NyfzrmGeEdE2ipLqWAzJzgrUXvQT9AQQHK+mn1yCpBgNokJnVH s3DDIDRdHAN+80Peh0ELNhYt+l8bxD0BUd3Oa933UZ1fRrVJlPhgm9THlNMskKKKSMTt QRFJvz9qXjYcZhTbDIMsVv6q9yGJTtGuKdverw2tc02dG8GZAhWcKHN7pC6KUU2xs1VW WbTQ== X-Forwarded-Encrypted: i=1; AJvYcCWg5rX8loW4aGhKt/VuFgQdDVcIjIASweMWS+83kfFmTEP2TGqyGAfssuFQpI9fUDrrRBvOpeaPlNKHRKAGrozUkaIy X-Gm-Message-State: AOJu0Ywx2tjWqJd7UU1HUQ6HWgexW5Dy1K6/SWsHtnFUIwB0jQ4PKYKX uZQa5RbBhai7aMLYsPQpgk14hPTFcxMI7T2AqqQtVKjqD+Ptm31JtQdpe+tgci1kAtk2ivsiz6T iYA+ZS/WcTQmm/uL4Rh1mpw== 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: bpf@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 X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC 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); }; /**