From patchwork Wed Jan 27 20:35:09 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamal Mostafa X-Patchwork-Id: 574359 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) by ozlabs.org (Postfix) with ESMTP id 0C0141402A0; Thu, 28 Jan 2016 07:50:22 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1aOX2g-0002aX-Sn; Wed, 27 Jan 2016 20:50:18 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1aOWtG-0007QD-Nw for kernel-team@lists.ubuntu.com; Wed, 27 Jan 2016 20:40:34 +0000 Received: from 1.general.kamal.us.vpn ([10.172.68.52] helo=fourier) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1aOWtG-0003oh-BN; Wed, 27 Jan 2016 20:40:34 +0000 Received: from kamal by fourier with local (Exim 4.82) (envelope-from ) id 1aOWtD-00052u-Ii; Wed, 27 Jan 2016 12:40:31 -0800 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Subject: [PATCH 4.2.y-ckt 248/268] IB/mlx4: Initialize hop_limit when creating address handle Date: Wed, 27 Jan 2016 12:35:09 -0800 Message-Id: <1453926929-17663-249-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1453926929-17663-1-git-send-email-kamal@canonical.com> References: <1453926929-17663-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 4.2 Cc: Kamal Mostafa , Doug Ledford , Matan Barak X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.14 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: kernel-team-bounces@lists.ubuntu.com 4.2.8-ckt3 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Matan Barak commit 4e4081673445485aa6bc90383bdb83e7a96cc48a upstream. Hop limit value wasn't copied from attributes when ah was created. This may influence packets for unconnected services to get dropped in routers when endpoints are not in the same subnet. Fixes: fa417f7b520e ("IB/mlx4: Add support for IBoE") Signed-off-by: Matan Barak Signed-off-by: Doug Ledford Signed-off-by: Kamal Mostafa --- drivers/infiniband/hw/mlx4/ah.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c index 33fdd50..de1a28d 100644 --- a/drivers/infiniband/hw/mlx4/ah.c +++ b/drivers/infiniband/hw/mlx4/ah.c @@ -91,6 +91,7 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24)); ah->av.eth.gid_index = ah_attr->grh.sgid_index; ah->av.eth.vlan = cpu_to_be16(vlan_tag); + ah->av.eth.hop_limit = ah_attr->grh.hop_limit; if (ah_attr->static_rate) { ah->av.eth.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET; while (ah->av.eth.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&