From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 EEBE24E0B68; Thu, 17 Sep 2026 16:50:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789663850; cv=none; b=E3SKli8lDrSHFFQl1gtAi+Uft86TGvND6+PhDNL738y/rbAdzroqisSG3YVZJd+Y6n/M3g2Ei073Ukq18F7Smyl1g5u8R63CK4m/evlx3xKpvFpfFNdpfZQBHsF7cIH7ZlOg601NjNoeYPIxRcKYXyANlkE8vixjwtS17rClXrY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789663850; c=relaxed/simple; bh=LfHXrUne6J9Z2aT+tzlPDJFI8n13+yEkX6s90nnQnT4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=V01VcUB4yD3B0H3UE5k2sDcADxrQKcyiiPyLgYIhhn/VwJpHyjAX6Ds2v56f1nCeqHqtjoNlyKjAa5yYaQODDN3YuXO5p7BB1ZVCZwxxSp4iWu4pL1qd2YnC0gsrCmnREi250zfZX6H2EjvqUGj5vEucUsVa3lsfw+We+Wl/5Xo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vn/NtJxx; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="vn/NtJxx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13D271F000FF; Thu, 17 Sep 2026 16:50:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789663848; bh=UpHXyUpKXued43DQgJqGTBqqiqY7y2IlC56aHOt7mOg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=vn/NtJxxVHi8OXC/zVNSWOm6umBEMX74oKqhAgpBx9XRyfGNhU/+OM6b7WBuy9SMU Xj4zzrgu2O5cPPOq97oTEAgMRZchmGfPsxAe+MAKyczgI+zlA0qmwqoJKeyfVLg48p zpt1Aw1fdtovJVTzExaBdtp87wBEA28TXTcgbBeY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chenguang Zhao , Leon Romanovsky , Sasha Levin Subject: [PATCH 6.18 0126/1250] RDMA/mlx5: Use QP port when decoding responder CQEs Date: Thu, 17 Sep 2026 15:58:41 +0100 Message-ID: <20260917151555.446816519@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151551.901433442@linuxfoundation.org> References: <20260917151551.901433442@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chenguang Zhao [ Upstream commit 194762e6e436acde0f8f6aef44200b0058c36791 ] The responder CQE path determines the link layer via rdma_port_get_link_layer(). Use qp->port instead of hardcoding port 1, which can mis-decode completions on multi-port devices. Signed-off-by: Chenguang Zhao Link: https://patch.msgid.link/20260410074046.2044595-1-zhaochenguang@kylinos.cn Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/mlx5/cq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 651d76bca114d..c6590dde68332 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -169,7 +169,8 @@ enum { static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe, struct mlx5_ib_qp *qp) { - enum rdma_link_layer ll = rdma_port_get_link_layer(qp->ibqp.device, 1); + enum rdma_link_layer ll = + rdma_port_get_link_layer(qp->ibqp.device, qp->port); struct mlx5_ib_dev *dev = to_mdev(qp->ibqp.device); struct mlx5_ib_srq *srq = NULL; struct mlx5_ib_wq *wq; -- 2.53.0