From patchwork Tue Mar 26 22:50:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mina Almasry X-Patchwork-Id: 13605282 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4FD13CD11DF for ; Tue, 26 Mar 2024 22:51:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 63BA010F453; Tue, 26 Mar 2024 22:51:03 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.b="XrogXc28"; dkim-atps=neutral Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) by gabe.freedesktop.org (Postfix) with ESMTPS id 49CEC10F453 for ; Tue, 26 Mar 2024 22:50:58 +0000 (UTC) Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-dcc4563611cso8739255276.3 for ; Tue, 26 Mar 2024 15:50:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1711493457; x=1712098257; darn=lists.freedesktop.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=g7wPvg5SzHg3djrLO0jF0y6HKK/VaWsWbJGTmJoXohw=; b=XrogXc28f0KEfwKarsUoXBlBXjzxwOXBDEKSqWJ/pjXkYRDSTTwucT3AP9QrfUvWV5 k7i5rc5WFsRayePctsE9B5QBsVSM5vQmBHJK6oExHoRdm4kGRbqF0PTudXNCnXFJHR0D 8Ho8Di3P46LN9tPMJcyhl5gDnnxM5HcCZ5QbEgbnb5pHxqXPaDQ7JeuCcaNgD7sx0s6p mC20IPrWrgxp3Q1Xrk9Gw2PBaoiFxwRMWA4ZOQ9ex58euV159hh3gomJvV1TuOZzL8Vr D/wDCZ9SGspP8HIKLzJsug3/oJ3EZFXJcXSByFer/g96RjXH2GgoFywYUXOab7bCSxUK oirA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711493457; x=1712098257; 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=g7wPvg5SzHg3djrLO0jF0y6HKK/VaWsWbJGTmJoXohw=; b=TNs68XBwyYiDihu4A6JGNB8iHdOihTLUoCyhELTnVq8zvU1V55p86Ksa5nTjOy+x8l juYy5+AXkNBvDagNvy9dAXIKaHalYWkye53o+2whaOEXrwPJd/Ev69dIcXWpTl1A6U3D TEDEUKMO71bnjs3V6hEKOKkRAgT1rPHyTMDtvC3/VraSsxaGbzvz4iQQHYqBLUHDqgoE oz58N4lFAzsASR4xwN8k4nwxXQ+PwneG6oDIrGmPMhnA1VVPF0oTh4jIvC4Dh1wovtLI PfOWYc1F5O9YJqwR5LQzyK23/obPXDrP1DMkuhj/jxxAN2kDVCFJhqScT+diFnIX6NNP jvkA== X-Forwarded-Encrypted: i=1; AJvYcCU2yWYLVIzS/CONFnUQDF5YUySLXwBO8JSNtDVrldt+VYHtegMiMGUEDzCQAu2gc4w/qfVxm5ZDFW+31AJkjQfYcHEFPWBsuctv+LZwHIb5 X-Gm-Message-State: AOJu0YzS3t0MRqv3WWZP5zWCy3rFr4cgTRVYZB/YN8clg9ht95ep/mCM 2Ebb/HTlD05NxA6O9rly86qI9MmBm7/aMDZyWigtvyqBGuIcli1ATAHtdlALQLseFiOcE2U6u3L 0oQlE99Ou8tXIeL7p1p+45Q== X-Google-Smtp-Source: AGHT+IGoJ91B2ro4NgPyk1e74NGmWSPhPzZUW0Q71qZOWUIfAfkK/24SBynuxXqxxickdOKVfZBEkC7HXTaNllUdCA== X-Received: from almasrymina.svl.corp.google.com ([2620:15c:2c4:200:c51e:bdd0:7cc8:695c]) (user=almasrymina job=sendgmr) by 2002:a05:6902:220a:b0:dcc:f01f:65e1 with SMTP id dm10-20020a056902220a00b00dccf01f65e1mr3555213ybb.8.1711493457318; Tue, 26 Mar 2024 15:50:57 -0700 (PDT) Date: Tue, 26 Mar 2024 15:50:32 -0700 In-Reply-To: <20240326225048.785801-1-almasrymina@google.com> Mime-Version: 1.0 References: <20240326225048.785801-1-almasrymina@google.com> X-Mailer: git-send-email 2.44.0.396.g6e790dbe36-goog Message-ID: <20240326225048.785801-2-almasrymina@google.com> Subject: [RFC PATCH net-next v7 01/14] 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 , Steffen Klassert , Herbert Xu , 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-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This API enables the net stack to reset the queues used for devmem TCP. Signed-off-by: Mina Almasry --- include/linux/netdevice.h | 3 +++ include/net/netdev_queues.h | 27 +++++++++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e41d30ebaca6..3d3af8f7f9c9 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1956,6 +1956,7 @@ enum netdev_reg_state { * @sysfs_rx_queue_group: Space for optional per-rx queue attributes * @rtnl_link_ops: Rtnl_link_ops * @stat_ops: Optional ops for queue-aware statistics + * @queue_mgmt_ops: Optional ops for queue management * * @gso_max_size: Maximum size of generic segmentation offload * @tso_max_size: Device (as in HW) limit on the max TSO request size @@ -2338,6 +2339,8 @@ struct net_device { const struct netdev_stat_ops *stat_ops; + const struct netdev_queue_mgmt_ops *queue_mgmt_ops; + /* for setting kernel sock attribute on TCP connection setup */ #define GSO_MAX_SEGS 65535u #define GSO_LEGACY_MAX_SIZE 65536u diff --git a/include/net/netdev_queues.h b/include/net/netdev_queues.h index 1ec408585373..337df0860ae6 100644 --- a/include/net/netdev_queues.h +++ b/include/net/netdev_queues.h @@ -60,6 +60,33 @@ struct netdev_stat_ops { struct netdev_queue_stats_tx *tx); }; +/** + * struct netdev_queue_mgmt_ops - netdev ops for queue management + * + * @ndo_queue_mem_alloc: 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. + * + * @ndo_queue_mem_free: Free memory from an RX queue. + * + * @ndo_queue_start: Start an RX queue at the specified index. + * + * @ndo_queue_stop: Stop the RX queue at the specified index. + */ +struct netdev_queue_mgmt_ops { + 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); +}; + /** * DOC: Lockless queue stopping / waking helpers. *