github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-31 18:43:33 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/xe: Add max_vfs module parameter

Browse Source 
We want to have an option to limit the number of the VFs that the
PF driver will be able to manage.  With this limit set to zero we
will also have a way to completely disable the PF functionality.

Since we currently don't support SR-IOV on any platform, we start
with this limit set to zero by default.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240404154431.583-2-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2024-04-04 17:44:29 +02:00
parent a918e771e6
commit e806fac0bd
2 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/xe/xe_module.c
View File

@ -48,6 +48,13 @@ module_param_named_unsafe(force_probe, xe_modparam.force_probe, charp, 0400);
MODULE_PARM_DESC(force_probe,
"Force probe options for specified devices. See CONFIG_DRM_XE_FORCE_PROBE for details.");
#ifdef CONFIG_PCI_IOV
module_param_named(max_vfs, xe_modparam.max_vfs, uint, 0400);
MODULE_PARM_DESC(max_vfs,
"Limit number of Virtual Functions (VFs) that could be managed. "
"(0 = no VFs [default]; N = allow up to N VFs)");
#endif
struct init_funcs {
int (*init)(void);
void (*exit)(void);

3
drivers/gpu/drm/xe/xe_module.h
View File

@ -18,6 +18,9 @@ struct xe_modparam {
char *huc_firmware_path;
char *gsc_firmware_path;
char *force_probe;
#ifdef CONFIG_PCI_IOV
unsigned int max_vfs;
#endif
};
extern struct xe_modparam xe_modparam;