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Message-Id: <20170501212732.061592774@linuxfoundation.org>
Date: Mon, 1 May 2017 14:34:46 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
Roi Dayan <roid@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>
Subject: [PATCH 4.10 33/62] net/mlx5: E-Switch, Correctly deal with inline mode on ConnectX-5
4.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Or Gerlitz <ogerlitz@...lanox.com>
[ Upstream commit c415f704c8276bc686abcb0497bf2606038ca73c ]
On ConnectX5 the wqe inline mode is "none" and hence the FW
reports MLX5_CAP_INLINE_MODE_NOT_REQUIRED.
Fix our devlink callbacks to deal with that on get and set.
Also fix the tc flow parsing code not to fail anything when
inline isn't required.
Fixes: bffaa916588e ('net/mlx5: E-Switch, Add control for inline mode')
Signed-off-by: Or Gerlitz <ogerlitz@...lanox.com>
Reviewed-by: Roi Dayan <roid@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 3 -
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 36 ++++++++-----
2 files changed, 26 insertions(+), 13 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -611,7 +611,8 @@ static int parse_cls_flower(struct mlx5e
if (!err && esw->mode == SRIOV_OFFLOADS &&
rep->vport != FDB_UPLINK_VPORT) {
- if (min_inline > esw->offloads.inline_mode) {
+ if (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE &&
+ esw->offloads.inline_mode < min_inline) {
netdev_warn(priv->netdev,
"Flow is not offloaded due to min inline setting, required %d actual %d\n",
min_inline, esw->offloads.inline_mode);
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -908,8 +908,7 @@ int mlx5_devlink_eswitch_inline_mode_set
struct mlx5_core_dev *dev = devlink_priv(devlink);
struct mlx5_eswitch *esw = dev->priv.eswitch;
int num_vports = esw->enabled_vports;
- int err;
- int vport;
+ int err, vport;
u8 mlx5_mode;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
@@ -918,9 +917,17 @@ int mlx5_devlink_eswitch_inline_mode_set
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
- if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
- MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
+ switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
+ case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
+ if (mode == DEVLINK_ESWITCH_INLINE_MODE_NONE)
+ return 0;
+ /* fall through */
+ case MLX5_CAP_INLINE_MODE_L2:
+ esw_warn(dev, "Inline mode can't be set\n");
return -EOPNOTSUPP;
+ case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
+ break;
+ }
if (esw->offloads.num_flows > 0) {
esw_warn(dev, "Can't set inline mode when flows are configured\n");
@@ -963,18 +970,14 @@ int mlx5_devlink_eswitch_inline_mode_get
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
- if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
- MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
- return -EOPNOTSUPP;
-
return esw_inline_mode_to_devlink(esw->offloads.inline_mode, mode);
}
int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode)
{
+ u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2;
struct mlx5_core_dev *dev = esw->dev;
int vport;
- u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
@@ -982,10 +985,18 @@ int mlx5_eswitch_inline_mode_get(struct
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
- if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
- MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
- return -EOPNOTSUPP;
+ switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
+ case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
+ mlx5_mode = MLX5_INLINE_MODE_NONE;
+ goto out;
+ case MLX5_CAP_INLINE_MODE_L2:
+ mlx5_mode = MLX5_INLINE_MODE_L2;
+ goto out;
+ case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
+ goto query_vports;
+ }
+query_vports:
for (vport = 1; vport <= nvfs; vport++) {
mlx5_query_nic_vport_min_inline(dev, vport, &mlx5_mode);
if (vport > 1 && prev_mlx5_mode != mlx5_mode)
@@ -993,6 +1004,7 @@ int mlx5_eswitch_inline_mode_get(struct
prev_mlx5_mode = mlx5_mode;
}
+out:
*mode = mlx5_mode;
return 0;
}
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