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=-19.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 33365C07E99 for ; Thu, 8 Jul 2021 09:28:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1956E61983 for ; Thu, 8 Jul 2021 09:28:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231366AbhGHJay (ORCPT ); Thu, 8 Jul 2021 05:30:54 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:35998 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231313AbhGHJav (ORCPT ); Thu, 8 Jul 2021 05:30:51 -0400 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 7650321FD0; Thu, 8 Jul 2021 09:28:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1625736488; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=p8YJIsE3iLagZyuQOT17sD+vfGs7zD3HYjrCRZNATSo=; b=WTKm6mkrqMjIObAGesY5mCgO7/xfq+av30sVHJULZ0DeahFtu1roCGxDKpFdp2k54RtRaJ VWE+KwAMmLqlaASko1IZ8LCR0dTHRdDqVSbBzNN8wwoTSlWUziOldlvBL+1nkrZFaXe4JL /E1755XVvaGATpF6YNuPhXfRjMP+bjQ= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1625736488; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=p8YJIsE3iLagZyuQOT17sD+vfGs7zD3HYjrCRZNATSo=; b=ZjRVerlPWo10ziij3r69lyZR0QzDXcGetnrwQEOwudcHQitE+et5BY0T5tWh2E2cIqaMHx ouw44DnZQZ884oAg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 6A619A3B87; Thu, 8 Jul 2021 09:28:08 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 17828) id 5AD50517114E; Thu, 8 Jul 2021 11:28:08 +0200 (CEST) From: Daniel Wagner To: linux-nvme@lists.infradead.org Cc: linux-kernel@vger.kernel.org, James Smart , Keith Busch , Jens Axboe , Ming Lei , Sagi Grimberg , Hannes Reinecke , Daniel Wagner Subject: [PATCH v2 2/5] nvme-tcp: Update number of hardware queues before using them Date: Thu, 8 Jul 2021 11:27:52 +0200 Message-Id: <20210708092755.15660-3-dwagner@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210708092755.15660-1-dwagner@suse.de> References: <20210708092755.15660-1-dwagner@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hannes Reinecke When the number of hardware queues changes during resetting we should update the tagset first before using it. Signed-off-by: Hannes Reinecke Signed-off-by: Daniel Wagner --- drivers/nvme/host/tcp.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 0125463b7d77..a0f15e94c7a6 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -1784,6 +1784,7 @@ static void nvme_tcp_destroy_io_queues(struct nvme_ctrl *ctrl, bool remove) static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new) { int ret; + u32 prior_q_cnt = ctrl->queue_count; ret = nvme_tcp_alloc_io_queues(ctrl); if (ret) @@ -1801,14 +1802,7 @@ static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new) ret = PTR_ERR(ctrl->connect_q); goto out_free_tag_set; } - } - - ret = nvme_tcp_start_io_queues(ctrl); - if (ret) - goto out_cleanup_connect_q; - - if (!new) { - nvme_start_queues(ctrl); + } else if (prior_q_cnt != ctrl->queue_count) { if (!nvme_wait_freeze_timeout(ctrl, NVME_IO_TIMEOUT)) { /* * If we timed out waiting for freeze we are likely to @@ -1823,6 +1817,10 @@ static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new) nvme_unfreeze(ctrl); } + ret = nvme_tcp_start_io_queues(ctrl); + if (ret) + goto out_cleanup_connect_q; + return 0; out_wait_freeze_timed_out: -- 2.29.2