lkml.org 
[lkml]   [2020]   [Jan]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.4 027/104] net/mlx5: E-Switch, Prevent ingress rate configuration of uplink rep
Date
From: Eli Cohen <eli@mellanox.com>

commit e401a1848be87123a2b2049addbf21138cb47081 upstream.

Since the implementation relies on limiting the VF transmit rate to
simulate ingress rate limiting, and since either uplink representor or
ecpf are not associated with a VF, we limit the rate limit configuration
for those ports.

Fixes: fcb64c0f5640 ("net/mlx5: E-Switch, add ingress rate support")
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3951,6 +3951,13 @@ static int apply_police_params(struct ml
u32 rate_mbps;
int err;

+ vport_num = rpriv->rep->vport;
+ if (vport_num >= MLX5_VPORT_ECPF) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Ingress rate limit is supported only for Eswitch ports connected to VFs");
+ return -EOPNOTSUPP;
+ }
+
esw = priv->mdev->priv.eswitch;
/* rate is given in bytes/sec.
* First convert to bits/sec and then round to the nearest mbit/secs.
@@ -3959,8 +3966,6 @@ static int apply_police_params(struct ml
* 1 mbit/sec.
*/
rate_mbps = rate ? max_t(u32, (rate * 8 + 500000) / 1000000, 1) : 0;
- vport_num = rpriv->rep->vport;
-
err = mlx5_esw_modify_vport_rate(esw, vport_num, rate_mbps);
if (err)
NL_SET_ERR_MSG_MOD(extack, "failed applying action to hardware");

\
 
 \ /
  Last update: 2020-01-28 15:49    [W:0.651 / U:0.916 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site