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drm/xe/pf: Allow bulk change all VFs EQ/PT using sysfs

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It is expected to be a common practice to configure the same values
of execution quantum and preemption timeout parameters across all VFs.

Add write-only sysfs attributes that will apply required EQ/PT values
globally, without forcing admin to update PF and each VF separately.

  /sys/bus/pci/drivers/xe/BDF/
  ├── sriov_admin/
      ├── .bulk_profile
      │   ├── exec_quantum_ms		[WO] unsigned integer
      │   └── preempt_timeout_us	[WO] unsigned integer

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251030222348.186658-11-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2025-10-30 23:23:41 +01:00
parent b7a73b5775
commit 71f5933c4b
1 changed files with 36 additions and 0 deletions
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36
drivers/gpu/drm/xe/xe_sriov_pf_sysfs.c
View File

@ -22,6 +22,9 @@
* :
* ├── sriov_admin/
* ├── ...
* ├── .bulk_profile
* │ ├── exec_quantum_ms
* │ └── preempt_timeout_us
* ├── pf/
* │ ├── ...
* │ └── profile
@ -84,7 +87,40 @@ struct xe_sriov_vf_attr xe_sriov_vf_attr_##NAME = \
/* device level attributes go here */
#define DEFINE_SIMPLE_BULK_PROVISIONING_SRIOV_DEV_ATTR_WO(NAME, ITEM, TYPE) \
\
static ssize_t xe_sriov_dev_attr_##NAME##_store(struct xe_device *xe, \
const char *buf, size_t count) \
{ \
TYPE value; \
int err; \
\
err = kstrto##TYPE(buf, 0, &value); \
if (err) \
return err; \
\
err = xe_sriov_pf_provision_bulk_apply_##ITEM(xe, value); \
return err ?: count; \
} \
\
static XE_SRIOV_DEV_ATTR_WO(NAME)
DEFINE_SIMPLE_BULK_PROVISIONING_SRIOV_DEV_ATTR_WO(exec_quantum_ms, eq, u32);
DEFINE_SIMPLE_BULK_PROVISIONING_SRIOV_DEV_ATTR_WO(preempt_timeout_us, pt, u32);
static struct attribute *bulk_profile_dev_attrs[] = {
&xe_sriov_dev_attr_exec_quantum_ms.attr,
&xe_sriov_dev_attr_preempt_timeout_us.attr,
NULL
};
static const struct attribute_group bulk_profile_dev_attr_group = {
.name = ".bulk_profile",
.attrs = bulk_profile_dev_attrs,
};
static const struct attribute_group *xe_sriov_dev_attr_groups[] = {
&bulk_profile_dev_attr_group,
NULL
};