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From d0b7b0101b6234149651940453cb568c716f9e3c 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 10:54:59 -0400
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Subject: [PATCH 187/312] [netdrv] net/mlx5: Fix group version management
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Message-id: <20200512105530.4207-94-ahleihel@redhat.com>
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Patchwork-id: 306966
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Patchwork-instance: patchwork
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O-Subject: [RHEL8.3 BZ 1789382 093/124] net/mlx5: Fix group version management
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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: v5.7-rc1
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commit 454401aeb2957e0d996bc9208b78aa4d8ac12964
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Author: Eli Cohen <eli@mellanox.com>
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Date: Wed Mar 4 10:32:56 2020 +0200
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net/mlx5: Fix group version management
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When adding a rule to a flow group we need increment the version of the
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group. Current code fails to do that and as a result, when trying to add
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a rule, we will fail to discover a case where an FTE with the same match
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value was added while we scanned the groups of the same match criteria,
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thus we may try to add an FTE that was already added.
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Signed-off-by: Eli Cohen <eli@mellanox.com>
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Reviewed-by: Mark Bloch <markb@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/fs_core.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
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index 4c7c707f9e2d..7cc21f08cbcc 100644
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--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
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+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
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@@ -1342,6 +1342,7 @@ add_rule_fte(struct fs_fte *fte,
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fte->node.active = true;
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fte->status |= FS_FTE_STATUS_EXISTING;
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atomic_inc(&fte->node.version);
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+ atomic_inc(&fg->node.version);
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out:
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return handle;
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--
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2.13.6
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