From patchwork Tue Oct 27 13:51:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 289608 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=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 6B72EC64E75 for ; Tue, 27 Oct 2020 15:47:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2EC8C2065C for ; Tue, 27 Oct 2020 15:47:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603813645; bh=z9YLnN4mN1Vpk/LPYyi01M3v8z9AKwsXslZ2/mX5OVk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=f7VzipFrkM+8xfgKW87soJz0adeSdgIAJbG6bpBqS+z63Lky2eJJYBLJ3jU++V3W1 mtG91/IjhEEmfcRx5vbOBetkSjVIWHZvRWdC9BovywHplW6/iqme/xWWTqL+BDZfBZ AYY2/+5MQU5IVVjlcd+VOEUgx3kSI7DMq+fXNtiQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1802072AbgJ0Ppa (ORCPT ); Tue, 27 Oct 2020 11:45:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:57534 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1801061AbgJ0PiP (ORCPT ); Tue, 27 Oct 2020 11:38:15 -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 4FCAF204EF; Tue, 27 Oct 2020 15:38:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603813095; bh=z9YLnN4mN1Vpk/LPYyi01M3v8z9AKwsXslZ2/mX5OVk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UMof2pAhUtm9GvzGB4k28RHTJdrgTL93RMxnMvd18LxFprvQ7XuNxrAChPlNZ+v7H 5tT0zrA+vIkMjiWLUdhaRlEd1Tjn3r1S6DoGETI00fI3hZdKaXa5WTXuIkZD49ig6K YZRuby4nW9UCeXT5AtBUD1VbwnITu427bFkRpvq4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Michal Kalderon , Jason Gunthorpe , Sasha Levin Subject: [PATCH 5.9 435/757] RDMA/qedr: Fix doorbell setting Date: Tue, 27 Oct 2020 14:51:25 +0100 Message-Id: <20201027135510.957638545@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135450.497324313@linuxfoundation.org> References: <20201027135450.497324313@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Michal Kalderon [ Upstream commit 0b1eddc1964351cd5ce57aff46853ed4ce9ebbff ] Change the doorbell setting so that the maximum value between the last and current value is set. This is to avoid doorbells being lost. Fixes: a7efd7773e31 ("qedr: Add support for PD,PKEY and CQ verbs") Link: https://lore.kernel.org/r/20200902165741.8355-3-michal.kalderon@marvell.com Signed-off-by: Michal Kalderon Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/qedr/verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c index ae22bb8fe19b8..c61bdf97231f8 100644 --- a/drivers/infiniband/hw/qedr/verbs.c +++ b/drivers/infiniband/hw/qedr/verbs.c @@ -999,7 +999,7 @@ int qedr_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, /* Generate doorbell address. */ cq->db.data.icid = cq->icid; cq->db_addr = dev->db_addr + db_offset; - cq->db.data.params = DB_AGG_CMD_SET << + cq->db.data.params = DB_AGG_CMD_MAX << RDMA_PWM_VAL32_DATA_AGG_CMD_SHIFT; /* point to the very last element, passing it we will toggle */