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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 02BE7C388F9 for ; Tue, 27 Oct 2020 17:07:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B019E21D24 for ; Tue, 27 Oct 2020 17:07:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603818453; bh=NSZcLyLc+lG2Lh4QM+0BGVdUbjTSQ1T5XemTD61W+PM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=zMQepJKpVaMMXoDf/F4N33OB/J/r0lExXLdboHtdEd0OGzUyXJn0hAtbIoRf0nNPq uCS9xeQTN4FOCZGY7Wgl6/klWlqpFheoKAUI8xucO/5BbHHWB9F2awvckcBAVlbGQS nMQWxh9zzRHqt7Fcy/HVY6E/v8ySt1LgUKP7Rgqk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1816539AbgJ0RHc (ORCPT ); Tue, 27 Oct 2020 13:07:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:40712 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2509806AbgJ0PGh (ORCPT ); Tue, 27 Oct 2020 11:06:37 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6B96C2242E; Tue, 27 Oct 2020 15:06:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603811197; bh=NSZcLyLc+lG2Lh4QM+0BGVdUbjTSQ1T5XemTD61W+PM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tnG2MTWmHnh6QX8MYnsHN0D57ukcB/CfDT8SRVqBLhLr4zeDQr/tqDAIoR7s8JIqe NgYpH/v/UKygAHBAkdyLOBJtbhHu3xVJh9/ut61bA74ymKn2xAONgAo4RaJdr9TWXa q9TsdUgCjgfkwFxSy/s7qAjvW0uWDQfEemQ1M5YI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Leon Romanovsky , Jason Gunthorpe , Sasha Levin Subject: [PATCH 5.8 380/633] RDMA/mlx5: Disable IB_DEVICE_MEM_MGT_EXTENSIONS if IB_WR_REG_MR cant work Date: Tue, 27 Oct 2020 14:52:03 +0100 Message-Id: <20201027135540.533647109@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135522.655719020@linuxfoundation.org> References: <20201027135522.655719020@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jason Gunthorpe [ Upstream commit 0ec52f0194638e2d284ad55eba5a7aff753de1b9 ] set_reg_wr() always fails if !umr_modify_entity_size_disabled because mlx5_ib_can_use_umr() always fails. Without set_reg_wr() IB_WR_REG_MR doesn't work and that means the device should not advertise IB_DEVICE_MEM_MGT_EXTENSIONS. Fixes: 841b07f99a47 ("IB/mlx5: Block MR WR if UMR is not possible") Link: https://lore.kernel.org/r/20200914112653.345244-5-leon@kernel.org Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/mlx5/main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 6f99ed03d88e7..1f4aa2647a6f3 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -867,7 +867,9 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, /* We support 'Gappy' memory registration too */ props->device_cap_flags |= IB_DEVICE_SG_GAPS_REG; } - props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; + /* IB_WR_REG_MR always requires changing the entity size with UMR */ + if (!MLX5_CAP_GEN(dev->mdev, umr_modify_entity_size_disabled)) + props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; if (MLX5_CAP_GEN(mdev, sho)) { props->device_cap_flags |= IB_DEVICE_INTEGRITY_HANDOVER; /* At this stage no support for signature handover */ -- 2.25.1