From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out1-smtp.messagingengine.com ([66.111.4.25]:51718 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755748AbdCLP4R (ORCPT ); Sun, 12 Mar 2017 11:56:17 -0400 Subject: FAILED: patch "[PATCH] IB/mlx5: Verify that Q counters are supported" failed to apply to 4.10-stable tree To: kamalh@mellanox.com, dledford@redhat.com, leon@kernel.org, markb@mellanox.com, stable@vger.kernel.org Cc: From: Date: Sun, 12 Mar 2017 16:55:54 +0100 Message-ID: <1489334154159222@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: The patch below does not apply to the 4.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >>From 45bded2c216da6010184ac5ebe88c27f73439009 Mon Sep 17 00:00:00 2001 From: Kamal Heib Date: Wed, 18 Jan 2017 14:10:32 +0200 Subject: [PATCH] IB/mlx5: Verify that Q counters are supported Make sure that the Q counters are supported by the FW before trying to allocate/deallocte them, this will avoid driver load failure when they aren't supported by the FW. Fixes: 0837e86a7a34 ('IB/mlx5: Add per port counters') Cc: # v4.7+ Signed-off-by: Kamal Heib Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index a191b9327b0c..0187f1d7234a 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -3313,9 +3313,11 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev) if (err) goto err_rsrc; - err = mlx5_ib_alloc_q_counters(dev); - if (err) - goto err_odp; + if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) { + err = mlx5_ib_alloc_q_counters(dev); + if (err) + goto err_odp; + } dev->mdev->priv.uar = mlx5_get_uars_page(dev->mdev); if (!dev->mdev->priv.uar) @@ -3364,7 +3366,8 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev) mlx5_put_uars_page(dev->mdev, dev->mdev->priv.uar); err_q_cnt: - mlx5_ib_dealloc_q_counters(dev); + if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) + mlx5_ib_dealloc_q_counters(dev); err_odp: mlx5_ib_odp_remove_one(dev); @@ -3397,7 +3400,8 @@ static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg); mlx5_free_bfreg(dev->mdev, &dev->bfreg); mlx5_put_uars_page(dev->mdev, mdev->priv.uar); - mlx5_ib_dealloc_q_counters(dev); + if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) + mlx5_ib_dealloc_q_counters(dev); destroy_umrc_res(dev); mlx5_ib_odp_remove_one(dev); destroy_dev_resources(&dev->devr);