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net/mlx5: Verify module parameters 

Verify the mlx5_core module parameters by making sure that they are in
the expected range and if they aren't restore them to their default
values.

Fixes: 9603b61de1 ('mlx5: Move pci device handling from mlx5_ib to mlx5_core')
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kamal Heib 2016-12-06 17:32:43 +02:00 committed by David S. Miller
parent f85de66663
commit f663ad9862
2 changed files with 17 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/net/ethernet/mellanox/mlx5/core/main.c
View File

@ -62,13 +62,13 @@ MODULE_DESCRIPTION("Mellanox Connect-IB, ConnectX-4 core driver");
MODULE_LICENSE("Dual BSD/GPL"); MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRIVER_VERSION); MODULE_VERSION(DRIVER_VERSION);
int mlx5_core_debug_mask; unsigned int mlx5_core_debug_mask;
module_param_named(debug_mask, mlx5_core_debug_mask, int, 0644); module_param_named(debug_mask, mlx5_core_debug_mask, uint, 0644);
MODULE_PARM_DESC(debug_mask, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0"); MODULE_PARM_DESC(debug_mask, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0");
#define MLX5_DEFAULT_PROF 2 #define MLX5_DEFAULT_PROF 2
static int prof_sel = MLX5_DEFAULT_PROF; static unsigned int prof_sel = MLX5_DEFAULT_PROF;
module_param_named(prof_sel, prof_sel, int, 0444); module_param_named(prof_sel, prof_sel, uint, 0444);
MODULE_PARM_DESC(prof_sel, "profile selector. Valid range 0 - 2"); MODULE_PARM_DESC(prof_sel, "profile selector. Valid range 0 - 2");
enum { enum {
@ -1227,13 +1227,6 @@ static int init_one(struct pci_dev *pdev,
dev->pdev = pdev; dev->pdev = pdev;
dev->event = mlx5_core_event; dev->event = mlx5_core_event;
if (prof_sel < 0 || prof_sel >= ARRAY_SIZE(profile)) {
mlx5_core_warn(dev,
"selected profile out of range, selecting default (%d)\n",
MLX5_DEFAULT_PROF);
prof_sel = MLX5_DEFAULT_PROF;
}
dev->profile = &profile[prof_sel]; dev->profile = &profile[prof_sel];
INIT_LIST_HEAD(&priv->ctx_list); INIT_LIST_HEAD(&priv->ctx_list);
@ -1450,10 +1443,22 @@ static struct pci_driver mlx5_core_driver = {
.sriov_configure = mlx5_core_sriov_configure, .sriov_configure = mlx5_core_sriov_configure,
}; };
static void mlx5_core_verify_params(void)
{
if (prof_sel >= ARRAY_SIZE(profile)) {
pr_warn("mlx5_core: WARNING: Invalid module parameter prof_sel %d, valid range 0-%zu, changing back to default(%d)\n",
prof_sel,
ARRAY_SIZE(profile) - 1,
MLX5_DEFAULT_PROF);
prof_sel = MLX5_DEFAULT_PROF;
}
}
static int __init init(void) static int __init init(void)
{ {
int err; int err;
mlx5_core_verify_params();
mlx5_register_debugfs(); mlx5_register_debugfs();
err = pci_register_driver(&mlx5_core_driver); err = pci_register_driver(&mlx5_core_driver);

2
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
View File

@ -44,7 +44,7 @@
#define MLX5_TOTAL_VPORTS(mdev) (1 + pci_sriov_get_totalvfs(mdev->pdev)) #define MLX5_TOTAL_VPORTS(mdev) (1 + pci_sriov_get_totalvfs(mdev->pdev))
extern int mlx5_core_debug_mask; extern uint mlx5_core_debug_mask;
#define mlx5_core_dbg(__dev, format, ...) \ #define mlx5_core_dbg(__dev, format, ...) \
dev_dbg(&(__dev)->pdev->dev, "%s:%s:%d:(pid %d): " format, \ dev_dbg(&(__dev)->pdev->dev, "%s:%s:%d:(pid %d): " format, \