From nobody Fri Dec 19 07:55:11 2025 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 E00DDC54EE9 for ; Tue, 13 Sep 2022 14:26:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233739AbiIMO0O (ORCPT ); Tue, 13 Sep 2022 10:26:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233690AbiIMOX5 (ORCPT ); Tue, 13 Sep 2022 10:23:57 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1AE066118; Tue, 13 Sep 2022 07:15:54 -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 sin.source.kernel.org (Postfix) with ESMTPS id 247D8CE1277; Tue, 13 Sep 2022 14:14:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 42D38C433C1; Tue, 13 Sep 2022 14:13:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1663078438; bh=YwyCy934OPQqHZ4UCWk+IgjuY/Cytd2eRVYocFrcypg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pfurDzdZCOB7kuTb+pylAVAYfVxM0jWAnjIljC8l3N+YbEw+MYYTnXyFci8h0zlwp PFeyzdbgW4zS6YUl8aZ/3Ffa6vPB0ES3U5VBwnV0yNc03dDICqjHm99HO46pIsSM2Q 53D3oUsBNNU759pvysLTkLZ60SaRZtUYdHprZX6I= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sindhu-Devale , Shiraz Saleem , Leon Romanovsky , Sasha Levin Subject: [PATCH 5.19 140/192] RDMA/irdma: Report the correct max cqes from query device Date: Tue, 13 Sep 2022 16:04:06 +0200 Message-Id: <20220913140416.993301600@linuxfoundation.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220913140410.043243217@linuxfoundation.org> References: <20220913140410.043243217@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Sindhu-Devale [ Upstream commit 12faad5e5cf2372af2d51f348b697b5edf838daf ] Report the correct max cqes available to an application taking into account a reserved entry to detect overflow. Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs") Signed-off-by: Sindhu-Devale Signed-off-by: Shiraz Saleem Link: https://lore.kernel.org/r/20220906223244.1119-2-shiraz.saleem@intel.c= om Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/irdma/verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/ir= dma/verbs.c index 227a799385d1d..4835702871677 100644 --- a/drivers/infiniband/hw/irdma/verbs.c +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -39,7 +39,7 @@ static int irdma_query_device(struct ib_device *ibdev, props->max_send_sge =3D hw_attrs->uk_attrs.max_hw_wq_frags; props->max_recv_sge =3D hw_attrs->uk_attrs.max_hw_wq_frags; props->max_cq =3D rf->max_cq - rf->used_cqs; - props->max_cqe =3D rf->max_cqe; + props->max_cqe =3D rf->max_cqe - 1; props->max_mr =3D rf->max_mr - rf->used_mrs; props->max_mw =3D props->max_mr; props->max_pd =3D rf->max_pd - rf->used_pds; --=20 2.35.1