From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A24B1519AA; Wed, 5 Feb 2025 14:15:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738764939; cv=none; b=q5/LUFnKuurVcWWF/f2MaIdE8dNugHiA6ATBjgKb//ifQ6zfay2CN9zTORgOg4yLFDvU0eB79W9y5y9SayNIw/O+iva9Ja7y/KRWxCAseTGi0yEmEytmc8FLzRaW6zdufmi8Db/4T1AM1Y0U2f/S7tgM+OtAgGwRzagECTpjAMk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738764939; c=relaxed/simple; bh=zeL7aHKWv0TdM8bSECDDuRRQt/Lbtbq5LE7dI4zAZeQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FoN/cjVUE4XzcuYn96xS7JcRDK4cidVXjcpPsndmRDJwp4AZ83lzGN3G4D5M4WBdD8VglHsdg7miG2CORtaTHWULg04d93UJ8D5e0pqcqgDR9iNRGG6NC9jUtJhTSvtNXx/JSnkBwjZWozea2tL3C0wQ3Nj0RT8HMnzmwoiqoxI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Vjc/Wv8t; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Vjc/Wv8t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 04361C4CED1; Wed, 5 Feb 2025 14:15:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1738764939; bh=zeL7aHKWv0TdM8bSECDDuRRQt/Lbtbq5LE7dI4zAZeQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vjc/Wv8twp5zjcd221zsfiLH0HOALgg0iYaVpeygxHz3h/xPZpN4bnvx99CRGbE3E HPS2VPT89CPbDk3GIeqCrdL8AGV6op/p3ohFVUpsZnNauDlm1OhOOycPRUC6s6q1V0 yYoBnzqXotLTn5O+Pr3mitG4IExhY1+9vnhSbjec= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, zhenwei pi , Leon Romanovsky , Sasha Levin , Zhu Yanjun Subject: [PATCH 6.6 217/393] RDMA/rxe: Fix mismatched max_msg_sz Date: Wed, 5 Feb 2025 14:42:16 +0100 Message-ID: <20250205134428.606383808@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250205134420.279368572@linuxfoundation.org> References: <20250205134420.279368572@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: zhenwei pi [ Upstream commit db03b70969aab4ef111a3369cfd90ea4da3a6aa0 ] User mode queries max_msg_sz as 0x800000 by command 'ibv_devinfo -v', however ibv_post_send/ibv_post_recv has a limit of 2^31. Fix this mismatched information. Signed-off-by: zhenwei pi Fixes: f605f26ea196 ("RDMA/rxe: Protect QP state with qp->state_lock") Fixes: 5bf944f24129 ("RDMA/rxe: Add error messages") Link: https://patch.msgid.link/20241216121953.765331-1-pizhenwei@bytedance.com Review-by: Zhu Yanjun Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/sw/rxe/rxe_param.h | 2 +- drivers/infiniband/sw/rxe/rxe_verbs.c | 5 ++--- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h index d2f57ead78ad1..003f681e5dc02 100644 --- a/drivers/infiniband/sw/rxe/rxe_param.h +++ b/drivers/infiniband/sw/rxe/rxe_param.h @@ -129,7 +129,7 @@ enum rxe_device_param { enum rxe_port_param { RXE_PORT_GID_TBL_LEN = 1024, RXE_PORT_PORT_CAP_FLAGS = IB_PORT_CM_SUP, - RXE_PORT_MAX_MSG_SZ = 0x800000, + RXE_PORT_MAX_MSG_SZ = (1UL << 31), RXE_PORT_BAD_PKEY_CNTR = 0, RXE_PORT_QKEY_VIOL_CNTR = 0, RXE_PORT_LID = 0, diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index b00d611857e0f..dbb9baa4ffd00 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -688,7 +688,7 @@ static int validate_send_wr(struct rxe_qp *qp, const struct ib_send_wr *ibwr, for (i = 0; i < ibwr->num_sge; i++) length += ibwr->sg_list[i].length; - if (length > (1UL << 31)) { + if (length > RXE_PORT_MAX_MSG_SZ) { rxe_err_qp(qp, "message length too long\n"); break; } @@ -977,8 +977,7 @@ static int post_one_recv(struct rxe_rq *rq, const struct ib_recv_wr *ibwr) for (i = 0; i < num_sge; i++) length += ibwr->sg_list[i].length; - /* IBA max message size is 2^31 */ - if (length >= (1UL<<31)) { + if (length > RXE_PORT_MAX_MSG_SZ) { err = -EINVAL; rxe_dbg("message length too long\n"); goto err_out; -- 2.39.5