Hi Reinette,
On 9/11/23 18:08, Reinette Chatre wrote:
> Hi Babu,
>
> On 9/7/2023 4:51 PM, Babu Moger wrote:
>> In x86, hardware uses RMID to identify a a monitoring group. When a
>> user creates a monitor group these details are not visible. These details
>> can help resctrl debugging.
>>
>> Add RMID(mon_hw_id) to the monitor groups display in resctrl interface.
>> Users can see these details when resctrl is mounted with "-o debug" option.
>>
>> Other architectures do not use "RMID". Use the name mon_hw_id to refer
>> to "RMID" in an effort to keep the naming generic.
>>
>> Add the flag RFTYPE_MON_BASE, which contains the files required only
>> for the MON group.
>
> As I mentioned in [1] I believe adding support for files with RFTYPE_MON flag
> to resctrl needs to be in a separate patch. With the core support added a file
> with this flag can be introduced separately.
Yes. We discussed it. Thought it may not fit as a separate patch on its
own. So, i combined it.
Now, I split patch 9 into two. Let me know if it looks ok.
==========================================================================
Author: Babu Moger <babu.moger@xxxxxxx>
Date: Thu Sep 7 18:51:28 2023 -0500
x86/resctrl: Add RFTYPE_MON_BASE for MON groups
Add the flag RFTYPE_MON_BASE, which contains the files required only
for the MON group. Files with these flags are only visible when
monitoring is enabled.
Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h
b/arch/x86/kernel/cpu/resctrl/internal.h
index ccdbed615d41..72988e5c52a7 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -296,6 +296,8 @@ struct rdtgroup {
* --> RFTYPE_BASE (Files common for both MON and CTRL groups)
* Files: cpus, cpus_list, tasks
*
+ * --> RFTYPE_MON (Files only for MON group)
+ *
* --> RFTYPE_CTRL (Files only for CTRL group)
* Files: mode, schemata, size
*
@@ -315,6 +317,7 @@ struct rdtgroup {
#define RFTYPE_MON_INFO (RFTYPE_INFO | RFTYPE_MON)
#define RFTYPE_TOP_INFO (RFTYPE_INFO | RFTYPE_TOP)
#define RFTYPE_CTRL_BASE (RFTYPE_BASE | RFTYPE_CTRL)
+#define RFTYPE_MON_BASE (RFTYPE_BASE | RFTYPE_MON)
/* List of all resource groups */
extern struct list_head rdt_all_groups;
=============================================================================
Thanks
Babu Moger
