Merge branch 'mlx5-fixes'

Or Gerlitz says:

====================
mlx5 fixes to 4.8-rc6

This series series has a fix from Roi to memory corruption bug in
the bulk flow counters code and two late and hopefully last fixes
from me to the new eswitch offloads code.

Series done over net commit 37dd348 "bna: fix crash in bnad_get_strings()"
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 17 insertions, 8 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 8b78f156214e..b247949df135 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1554,6 +1554,7 @@ int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode)
 
 abort:
         esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
+        esw->mode = SRIOV_NONE;
         return err;
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 3dc83a9459a4..7de40e6b0c25 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -446,7 +446,7 @@ out:
 
 static int esw_offloads_start(struct mlx5_eswitch *esw)
 {
-        int err, num_vfs = esw->dev->priv.sriov.num_vfs;
+        int err, err1, num_vfs = esw->dev->priv.sriov.num_vfs;
 
         if (esw->mode != SRIOV_LEGACY) {
                 esw_warn(esw->dev, "Can't set offloads mode, SRIOV legacy not enabled\n");
@@ -455,8 +455,12 @@ static int esw_offloads_start(struct mlx5_eswitch *esw)
 
         mlx5_eswitch_disable_sriov(esw);
         err = mlx5_eswitch_enable_sriov(esw, num_vfs, SRIOV_OFFLOADS);
-        if (err)
-                esw_warn(esw->dev, "Failed set eswitch to offloads, err %d\n", err);
+        if (err) {
+                esw_warn(esw->dev, "Failed setting eswitch to offloads, err %d\n", err);
+                err1 = mlx5_eswitch_enable_sriov(esw, num_vfs, SRIOV_LEGACY);
+                if (err1)
+                        esw_warn(esw->dev, "Failed setting eswitch back to legacy, err %d\n", err);
+        }
         return err;
 }
 
@@ -508,12 +512,16 @@ create_ft_err:
 
 static int esw_offloads_stop(struct mlx5_eswitch *esw)
 {
-        int err, num_vfs = esw->dev->priv.sriov.num_vfs;
+        int err, err1, num_vfs = esw->dev->priv.sriov.num_vfs;
 
         mlx5_eswitch_disable_sriov(esw);
         err = mlx5_eswitch_enable_sriov(esw, num_vfs, SRIOV_LEGACY);
-        if (err)
-                esw_warn(esw->dev, "Failed set eswitch legacy mode. err %d\n", err);
+        if (err) {
+                esw_warn(esw->dev, "Failed setting eswitch to legacy, err %d\n", err);
+                err1 = mlx5_eswitch_enable_sriov(esw, num_vfs, SRIOV_OFFLOADS);
+                if (err1)
+                        esw_warn(esw->dev, "Failed setting eswitch back to offloads, err %d\n", err);
+        }
 
         return err;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index 9134010e2921..287ade151ec8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -425,11 +425,11 @@ struct mlx5_cmd_fc_bulk *
 mlx5_cmd_fc_bulk_alloc(struct mlx5_core_dev *dev, u16 id, int num)
 {
         struct mlx5_cmd_fc_bulk *b;
-        int outlen = sizeof(*b) +
+        int outlen =
                 MLX5_ST_SZ_BYTES(query_flow_counter_out) +
                 MLX5_ST_SZ_BYTES(traffic_counter) * num;
 
-        b = kzalloc(outlen, GFP_KERNEL);
+        b = kzalloc(sizeof(*b) + outlen, GFP_KERNEL);
         if (!b)
                 return NULL;