From a88b00c14457d1a833ee903803b1c6e094fb4bd0 Mon Sep 17 00:00:00 2001
From: Alaa Hleihel <ahleihel@redhat.com>
Date: Sun, 10 May 2020 15:04:47 -0400
Subject: [PATCH 122/312] [netdrv] net/mlx5: Fix lowest FDB pool size
Message-id: <20200510150452.10307-83-ahleihel@redhat.com>
Patchwork-id: 306706
Patchwork-instance: patchwork
O-Subject: [RHEL8.3 BZ 1789380 v2 82/87] net/mlx5: Fix lowest FDB pool size
Bugzilla: 1789380
RH-Acked-by: Kamal Heib <kheib@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
RH-Acked-by: Jonathan Toppins <jtoppins@redhat.com>
Bugzilla: http://bugzilla.redhat.com/1789380
Upstream: v5.5
commit 93b8a7ecb7287cc9b0196f12a25b57c2462d11dc
Author: Paul Blakey <paulb@mellanox.com>
Date: Tue Dec 31 17:04:15 2019 +0200
net/mlx5: Fix lowest FDB pool size
The pool sizes represent the pool sizes in the fw. when we request
a pool size from fw, it will return the next possible group.
We track how many pools the fw has left and start requesting groups
from the big to the small.
When we start request 4k group, which doesn't exists in fw, fw
wants to allocate the next possible size, 64k, but will fail since
its exhausted. The correct smallest pool size in fw is 128 and not 4k.
Fixes: e52c28024008 ("net/mlx5: E-Switch, Add chains and priorities")
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Alaa Hleihel <ahleihel@redhat.com>
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
---
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 121abcae993a..9d2d850463bb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -866,7 +866,7 @@ static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw)
*/
#define ESW_SIZE (16 * 1024 * 1024)
const unsigned int ESW_POOLS[4] = { 4 * 1024 * 1024, 1 * 1024 * 1024,
- 64 * 1024, 4 * 1024 };
+ 64 * 1024, 128 };
static int
get_sz_from_pool(struct mlx5_eswitch *esw)
--
2.13.6