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From fb32c890e6cf38a3f6f2b848154c88049e42f051 Mon Sep 17 00:00:00 2001
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From: Alaa Hleihel <ahleihel@redhat.com>
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Date: Tue, 12 May 2020 10:54:36 -0400
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Subject: [PATCH 166/312] [netdrv] net/mlx5e: Do not recover from a non-fatal
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syndrome
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Message-id: <20200512105530.4207-71-ahleihel@redhat.com>
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Patchwork-id: 306943
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Patchwork-instance: patchwork
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O-Subject: [RHEL8.3 BZ 1789382 070/124] net/mlx5e: Do not recover from a non-fatal syndrome
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Bugzilla: 1789382
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RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
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RH-Acked-by: Kamal Heib <kheib@redhat.com>
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RH-Acked-by: Jarod Wilson <jarod@redhat.com>
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Bugzilla: http://bugzilla.redhat.com/1789382
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Upstream: v5.6
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commit 187a9830c921d92c4a9a8e2921ecc4b35a97532c
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Author: Aya Levin <ayal@mellanox.com>
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Date: Thu Mar 19 13:25:17 2020 +0200
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net/mlx5e: Do not recover from a non-fatal syndrome
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For non-fatal syndromes like LOCAL_LENGTH_ERR, recovery shouldn't be
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triggered. In these scenarios, the RQ is not actually in ERR state.
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This misleads the recovery flow which assumes that the RQ is really in
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error state and no more completions arrive, causing crashes on bad page
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state.
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Fixes: 8276ea1353a4 ("net/mlx5e: Report and recover from CQE with error on RQ")
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Signed-off-by: Aya Levin <ayal@mellanox.com>
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Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
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Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Signed-off-by: Alaa Hleihel <ahleihel@redhat.com>
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Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
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---
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drivers/net/ethernet/mellanox/mlx5/core/en/health.h | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
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index d3693fa547ac..e54f70d9af22 100644
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--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
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+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
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@@ -10,8 +10,7 @@
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static inline bool cqe_syndrome_needs_recover(u8 syndrome)
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{
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- return syndrome == MLX5_CQE_SYNDROME_LOCAL_LENGTH_ERR ||
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- syndrome == MLX5_CQE_SYNDROME_LOCAL_QP_OP_ERR ||
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+ return syndrome == MLX5_CQE_SYNDROME_LOCAL_QP_OP_ERR ||
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syndrome == MLX5_CQE_SYNDROME_LOCAL_PROT_ERR ||
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syndrome == MLX5_CQE_SYNDROME_WR_FLUSH_ERR;
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}
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--
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2.13.6
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