From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7CC1AC433DB for ; Thu, 11 Feb 2021 21:11:48 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 344D964E3E for ; Thu, 11 Feb 2021 21:11:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 344D964E3E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mellanox.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=rjwZlSodviwD6ecYpNS3BMN6uxqSc2nXVEzTBohZY9Q=; b=lQf5F3eJmH22V0i6zZwqEue+d 0EnEZCAfoh/u1TA9PHlzKQLJDBsMLsYSisTTLbs2A/IZYYWG+PFZJNSo/xFyrqlpCfKyFrM3ztV1C e7Erw5SV5+wi2pR5oWOBwgozU889Re9lIB532nlhifFNPGLbtNIwdAn2HObQM9DXGe7KMLH3kdLfT F7y4DLjUylCiJ4s1lraZ+HP130hpve69/uLZQrVRymyWKvtl8XFL97WN8lIZfFLPnZkVQFPNWSJhL 5ZymaulV9eWtexkgEE9KMZb3o8iBgBbwQs/pX1vKKOCEEZnxg9+6L3YckVEFgkBOKIQqFBGVcve1X WZTL1ZQUA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAJFY-00049W-7K; Thu, 11 Feb 2021 21:11:44 +0000 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAJFG-000433-3c for linux-nvme@lists.infradead.org; Thu, 11 Feb 2021 21:11:28 +0000 Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Thu, 11 Feb 2021 13:11:25 -0800 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 11 Feb 2021 21:11:17 +0000 Received: from vdi.nvidia.com (172.20.145.6) by mail.nvidia.com (172.20.187.15) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 11 Feb 2021 21:11:13 +0000 From: Boris Pismenny To: , , , , , , , , , , Subject: [PATCH v4 net-next 05/21] net/tls: expose get_netdev_for_sock Date: Thu, 11 Feb 2021 23:10:28 +0200 Message-ID: <20210211211044.32701-6-borisp@mellanox.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20210211211044.32701-1-borisp@mellanox.com> References: <20210211211044.32701-1-borisp@mellanox.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210211_161126_369974_268D74AA X-CRM114-Status: GOOD ( 12.56 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Boris Pismenny , yorayz@nvidia.com, boris.pismenny@gmail.com, benishay@nvidia.com, linux-nvme@lists.infradead.org, netdev@vger.kernel.org, ogerlitz@nvidia.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org get_netdev_for_sock is a utility that is used to obtain the net_device structure from a connected socket. Later patches will use this for nvme-tcp DDP and DDP CRC offloads. Signed-off-by: Boris Pismenny Reviewed-by: Sagi Grimberg --- include/net/sock.h | 17 +++++++++++++++++ net/tls/tls_device.c | 20 ++------------------ 2 files changed, 19 insertions(+), 18 deletions(-) diff --git a/include/net/sock.h b/include/net/sock.h index 690e496a0e79..f6d70f689bd1 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2732,4 +2732,21 @@ void sock_set_sndtimeo(struct sock *sk, s64 secs); int sock_bind_add(struct sock *sk, struct sockaddr *addr, int addr_len); +/* Assume that the socket is already connected */ +static inline struct net_device *get_netdev_for_sock(struct sock *sk, bool hold) +{ + struct dst_entry *dst = sk_dst_get(sk); + struct net_device *netdev = NULL; + + if (likely(dst)) { + netdev = dst->dev; + if (hold) + dev_hold(netdev); + } + + dst_release(dst); + + return netdev; +} + #endif /* _SOCK_H */ diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index d9cd229aa111..792c0a477850 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -106,22 +106,6 @@ static void tls_device_queue_ctx_destruction(struct tls_context *ctx) spin_unlock_irqrestore(&tls_device_lock, flags); } -/* We assume that the socket is already connected */ -static struct net_device *get_netdev_for_sock(struct sock *sk) -{ - struct dst_entry *dst = sk_dst_get(sk); - struct net_device *netdev = NULL; - - if (likely(dst)) { - netdev = netdev_sk_get_lowest_dev(dst->dev, sk); - dev_hold(netdev); - } - - dst_release(dst); - - return netdev; -} - static void destroy_record(struct tls_record_info *record) { int i; @@ -1106,7 +1090,7 @@ int tls_set_device_offload(struct sock *sk, struct tls_context *ctx) if (skb) TCP_SKB_CB(skb)->eor = 1; - netdev = get_netdev_for_sock(sk); + netdev = get_netdev_for_sock(sk, true); if (!netdev) { pr_err_ratelimited("%s: netdev not found\n", __func__); rc = -EINVAL; @@ -1182,7 +1166,7 @@ int tls_set_device_offload_rx(struct sock *sk, struct tls_context *ctx) if (ctx->crypto_recv.info.version != TLS_1_2_VERSION) return -EOPNOTSUPP; - netdev = get_netdev_for_sock(sk); + netdev = get_netdev_for_sock(sk, true); if (!netdev) { pr_err_ratelimited("%s: netdev not found\n", __func__); return -EINVAL; -- 2.24.1 _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme