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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A75AC7619A for ; Mon, 20 Mar 2023 15:25:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232723AbjCTPZL (ORCPT ); Mon, 20 Mar 2023 11:25:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232788AbjCTPY3 (ORCPT ); Mon, 20 Mar 2023 11:24:29 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C95436457 for ; Mon, 20 Mar 2023 08:17:42 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 0B71CB80E55 for ; Mon, 20 Mar 2023 15:17:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D531C433D2; Mon, 20 Mar 2023 15:17:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1679325457; bh=KybEv8xqTLeH2QWdnQbVpYQSe3+YI3q6mmf67zLEscQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=of97//NpThxv3mCe2Mu90rraon6YzMcmm++hIVQjdxmjEYcAYB/PSRcFXJq28fUQz O3EMQTU1TvYNPhjDshW/IX3wNycm21yS0yvDEZDoLpCjfnGD0YB7hEwwFa3CKLALMY FBDTczM4MCMMg4EReC7hkL49PyWlu7lS6EciLpU4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Eli Cohen , Si-Wei Liu , "Michael S. Tsirkin" , Jason Wang , Sasha Levin Subject: [PATCH 6.2 034/211] vdpa/mlx5: should not activate virtq object when suspended Date: Mon, 20 Mar 2023 15:52:49 +0100 Message-Id: <20230320145514.687137472@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230320145513.305686421@linuxfoundation.org> References: <20230320145513.305686421@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Si-Wei Liu [ Upstream commit 09e65ee9059d76b89cb713795748805efd3f50c6 ] Otherwise the virtqueue object to instate could point to invalid address that was unmapped from the MTT: mlx5_core 0000:41:04.2: mlx5_cmd_out_err:782:(pid 8321): CREATE_GENERAL_OBJECT(0xa00) op_mod(0xd) failed, status bad parameter(0x3), syndrome (0x5fa1c), err(-22) Fixes: cae15c2ed8e6 ("vdpa/mlx5: Implement susupend virtqueue callback") Cc: Eli Cohen Signed-off-by: Si-Wei Liu Reviewed-by: Eli Cohen Message-Id: <1676424640-11673-1-git-send-email-si-wei.liu@oracle.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang Signed-off-by: Sasha Levin --- drivers/vdpa/mlx5/core/mlx5_vdpa.h | 1 + drivers/vdpa/mlx5/net/mlx5_vnet.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5/core/mlx5_vdpa.h index 058fbe28107e9..25fc4120b618d 100644 --- a/drivers/vdpa/mlx5/core/mlx5_vdpa.h +++ b/drivers/vdpa/mlx5/core/mlx5_vdpa.h @@ -96,6 +96,7 @@ struct mlx5_vdpa_dev { struct mlx5_control_vq cvq; struct workqueue_struct *wq; unsigned int group2asid[MLX5_VDPA_NUMVQ_GROUPS]; + bool suspended; }; int mlx5_vdpa_alloc_pd(struct mlx5_vdpa_dev *dev, u32 *pdn, u16 uid); diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 3a6dbbc6440d4..daac3ab314785 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -2411,7 +2411,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev, if (err) goto err_mr; - if (!(mvdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) + if (!(mvdev->status & VIRTIO_CONFIG_S_DRIVER_OK) || mvdev->suspended) goto err_mr; restore_channels_info(ndev); @@ -2579,6 +2579,7 @@ static int mlx5_vdpa_reset(struct vdpa_device *vdev) clear_vqs_ready(ndev); mlx5_vdpa_destroy_mr(&ndev->mvdev); ndev->mvdev.status = 0; + ndev->mvdev.suspended = false; ndev->cur_num_vqs = 0; ndev->mvdev.cvq.received_desc = 0; ndev->mvdev.cvq.completed_desc = 0; @@ -2815,6 +2816,8 @@ static int mlx5_vdpa_suspend(struct vdpa_device *vdev) struct mlx5_vdpa_virtqueue *mvq; int i; + mlx5_vdpa_info(mvdev, "suspending device\n"); + down_write(&ndev->reslock); ndev->nb_registered = false; mlx5_notifier_unregister(mvdev->mdev, &ndev->nb); @@ -2824,6 +2827,7 @@ static int mlx5_vdpa_suspend(struct vdpa_device *vdev) suspend_vq(ndev, mvq); } mlx5_vdpa_cvq_suspend(mvdev); + mvdev->suspended = true; up_write(&ndev->reslock); return 0; } -- 2.39.2