diff mbox series

[v10,03/10] x86/resctrl: Rename rftype flags for consistency

Message ID 20230915224227.1336967-4-babu.moger@amd.com
State New
Headers
Series x86/resctrl: Miscellaneous resctrl features |

Commit Message

Moger, Babu Sept. 15, 2023, 10:42 p.m. UTC 
  resctrl associates rftype flags with its files so that files can be chosen
based on the resource, whether it is info or base, and if it is control
or monitor type file. These flags use the RF_ as well as RFTYPE_ prefixes.

Change the prefix to RFTYPE_ for all these flags to be consistent.

Also add the flag RFTYPE_MON_BASE, which contains the files required for
MON group only.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 arch/x86/kernel/cpu/resctrl/internal.h | 11 ++++---
 arch/x86/kernel/cpu/resctrl/rdtgroup.c | 42 +++++++++++++-------------
 2 files changed, 27 insertions(+), 26 deletions(-)

Comments

Fenghua Yu Sept. 25, 2023, 9:16 p.m. UTC | #1 
On 9/15/23 15:42, Babu Moger wrote:
> resctrl associates rftype flags with its files so that files can be chosen
> based on the resource, whether it is info or base, and if it is control
> or monitor type file. These flags use the RF_ as well as RFTYPE_ prefixes.
> 
> Change the prefix to RFTYPE_ for all these flags to be consistent.
> 
> Also add the flag RFTYPE_MON_BASE, which contains the files required for
> MON group only.
> 
> Signed-off-by: Babu Moger <babu.moger@amd.com>

Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>

Thanks.

-Fenghua
Reinette Chatre Sept. 27, 2023, 6:31 p.m. UTC | #2 
Hi Babu,

On 9/15/2023 3:42 PM, Babu Moger wrote:
> resctrl associates rftype flags with its files so that files can be chosen
> based on the resource, whether it is info or base, and if it is control
> or monitor type file. These flags use the RF_ as well as RFTYPE_ prefixes.
> 
> Change the prefix to RFTYPE_ for all these flags to be consistent.
> 
> Also add the flag RFTYPE_MON_BASE, which contains the files required for
> MON group only.

This appears to be appending an unexpected (because it introduces an unused flag)
change without motivation as an afterthought.

How about:
	Add RFTYPE_MON_BASE that will be used in a later patch. RFTYPE_MON_BASE
	complements existing RFTYPE_CTRL_BASE and represents files
	belonging to monitoring groups.

Feel free to improve.

> 
> Signed-off-by: Babu Moger <babu.moger@amd.com>
> ---

The patch looks good. With the changelog cleared up:

Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>

Reinette
Moger, Babu Sept. 27, 2023, 9:51 p.m. UTC | #3 
Hi Reinette,

On 9/27/2023 1:31 PM, Reinette Chatre wrote:
> Hi Babu,
>
> On 9/15/2023 3:42 PM, Babu Moger wrote:
>> resctrl associates rftype flags with its files so that files can be chosen
>> based on the resource, whether it is info or base, and if it is control
>> or monitor type file. These flags use the RF_ as well as RFTYPE_ prefixes.
>>
>> Change the prefix to RFTYPE_ for all these flags to be consistent.
>>
>> Also add the flag RFTYPE_MON_BASE, which contains the files required for
>> MON group only.
> This appears to be appending an unexpected (because it introduces an unused flag)
> change without motivation as an afterthought.
>
> How about:
> 	Add RFTYPE_MON_BASE that will be used in a later patch. RFTYPE_MON_BASE
> 	complements existing RFTYPE_CTRL_BASE and represents files
> 	belonging to monitoring groups.

Looks good.


>
> Feel free to improve.
>
>> Signed-off-by: Babu Moger <babu.moger@amd.com>
>> ---
> The patch looks good. With the changelog cleared up:
>
> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>

Thanks

Babu
Ilpo Järvinen Sept. 29, 2023, 3:14 p.m. UTC | #4 
On Fri, 15 Sep 2023, Babu Moger wrote:

> resctrl associates rftype flags with its files so that files can be chosen
> based on the resource, whether it is info or base, and if it is control
> or monitor type file. These flags use the RF_ as well as RFTYPE_ prefixes.
> 
> Change the prefix to RFTYPE_ for all these flags to be consistent.
> 
> Also add the flag RFTYPE_MON_BASE, which contains the files required for
> MON group only.
> 
> Signed-off-by: Babu Moger <babu.moger@amd.com>

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
diff mbox series

Patch

diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 62767774810d..f71bc82c882f 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -248,10 +248,11 @@  struct rdtgroup {
 #define RFTYPE_TOP			BIT(6)
 #define RFTYPE_RES_CACHE		BIT(8)
 #define RFTYPE_RES_MB			BIT(9)
-#define RF_CTRL_INFO			(RFTYPE_INFO | RFTYPE_CTRL)
-#define RF_MON_INFO			(RFTYPE_INFO | RFTYPE_MON)
-#define RF_TOP_INFO			(RFTYPE_INFO | RFTYPE_TOP)
-#define RF_CTRL_BASE			(RFTYPE_BASE | RFTYPE_CTRL)
+#define RFTYPE_CTRL_INFO		(RFTYPE_INFO | RFTYPE_CTRL)
+#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;
@@ -267,7 +268,7 @@  void __exit rdtgroup_exit(void);
  * @mode:	Access mode
  * @kf_ops:	File operations
  * @flags:	File specific RFTYPE_FLAGS_* flags
- * @fflags:	File specific RF_* or RFTYPE_* flags
+ * @fflags:	File specific RFTYPE_* flags
  * @seq_show:	Show content of the file
  * @write:	Write to the file
  */
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 7ddfa4b470e6..35945b4bf196 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -1705,77 +1705,77 @@  static struct rftype res_common_files[] = {
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_last_cmd_status_show,
-		.fflags		= RF_TOP_INFO,
+		.fflags		= RFTYPE_TOP_INFO,
 	},
 	{
 		.name		= "num_closids",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_num_closids_show,
-		.fflags		= RF_CTRL_INFO,
+		.fflags		= RFTYPE_CTRL_INFO,
 	},
 	{
 		.name		= "mon_features",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_mon_features_show,
-		.fflags		= RF_MON_INFO,
+		.fflags		= RFTYPE_MON_INFO,
 	},
 	{
 		.name		= "num_rmids",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_num_rmids_show,
-		.fflags		= RF_MON_INFO,
+		.fflags		= RFTYPE_MON_INFO,
 	},
 	{
 		.name		= "cbm_mask",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_default_ctrl_show,
-		.fflags		= RF_CTRL_INFO | RFTYPE_RES_CACHE,
+		.fflags		= RFTYPE_CTRL_INFO | RFTYPE_RES_CACHE,
 	},
 	{
 		.name		= "min_cbm_bits",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_min_cbm_bits_show,
-		.fflags		= RF_CTRL_INFO | RFTYPE_RES_CACHE,
+		.fflags		= RFTYPE_CTRL_INFO | RFTYPE_RES_CACHE,
 	},
 	{
 		.name		= "shareable_bits",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_shareable_bits_show,
-		.fflags		= RF_CTRL_INFO | RFTYPE_RES_CACHE,
+		.fflags		= RFTYPE_CTRL_INFO | RFTYPE_RES_CACHE,
 	},
 	{
 		.name		= "bit_usage",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_bit_usage_show,
-		.fflags		= RF_CTRL_INFO | RFTYPE_RES_CACHE,
+		.fflags		= RFTYPE_CTRL_INFO | RFTYPE_RES_CACHE,
 	},
 	{
 		.name		= "min_bandwidth",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_min_bw_show,
-		.fflags		= RF_CTRL_INFO | RFTYPE_RES_MB,
+		.fflags		= RFTYPE_CTRL_INFO | RFTYPE_RES_MB,
 	},
 	{
 		.name		= "bandwidth_gran",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_bw_gran_show,
-		.fflags		= RF_CTRL_INFO | RFTYPE_RES_MB,
+		.fflags		= RFTYPE_CTRL_INFO | RFTYPE_RES_MB,
 	},
 	{
 		.name		= "delay_linear",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdt_delay_linear_show,
-		.fflags		= RF_CTRL_INFO | RFTYPE_RES_MB,
+		.fflags		= RFTYPE_CTRL_INFO | RFTYPE_RES_MB,
 	},
 	/*
 	 * Platform specific which (if any) capabilities are provided by
@@ -1794,7 +1794,7 @@  static struct rftype res_common_files[] = {
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.write		= max_threshold_occ_write,
 		.seq_show	= max_threshold_occ_show,
-		.fflags		= RF_MON_INFO | RFTYPE_RES_CACHE,
+		.fflags		= RFTYPE_MON_INFO | RFTYPE_RES_CACHE,
 	},
 	{
 		.name		= "mbm_total_bytes_config",
@@ -1841,7 +1841,7 @@  static struct rftype res_common_files[] = {
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.write		= rdtgroup_schemata_write,
 		.seq_show	= rdtgroup_schemata_show,
-		.fflags		= RF_CTRL_BASE,
+		.fflags		= RFTYPE_CTRL_BASE,
 	},
 	{
 		.name		= "mode",
@@ -1849,14 +1849,14 @@  static struct rftype res_common_files[] = {
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.write		= rdtgroup_mode_write,
 		.seq_show	= rdtgroup_mode_show,
-		.fflags		= RF_CTRL_BASE,
+		.fflags		= RFTYPE_CTRL_BASE,
 	},
 	{
 		.name		= "size",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
 		.seq_show	= rdtgroup_size_show,
-		.fflags		= RF_CTRL_BASE,
+		.fflags		= RFTYPE_CTRL_BASE,
 	},
 
 };
@@ -1913,7 +1913,7 @@  void __init thread_throttle_mode_init(void)
 	if (!rft)
 		return;
 
-	rft->fflags = RF_CTRL_INFO | RFTYPE_RES_MB;
+	rft->fflags = RFTYPE_CTRL_INFO | RFTYPE_RES_MB;
 }
 
 void __init mbm_config_rftype_init(const char *config)
@@ -1922,7 +1922,7 @@  void __init mbm_config_rftype_init(const char *config)
 
 	rft = rdtgroup_get_rftype_by_name(config);
 	if (rft)
-		rft->fflags = RF_MON_INFO | RFTYPE_RES_CACHE;
+		rft->fflags = RFTYPE_MON_INFO | RFTYPE_RES_CACHE;
 }
 
 /**
@@ -2057,21 +2057,21 @@  static int rdtgroup_create_info_dir(struct kernfs_node *parent_kn)
 	if (IS_ERR(kn_info))
 		return PTR_ERR(kn_info);
 
-	ret = rdtgroup_add_files(kn_info, RF_TOP_INFO);
+	ret = rdtgroup_add_files(kn_info, RFTYPE_TOP_INFO);
 	if (ret)
 		goto out_destroy;
 
 	/* loop over enabled controls, these are all alloc_capable */
 	list_for_each_entry(s, &resctrl_schema_all, list) {
 		r = s->res;
-		fflags =  r->fflags | RF_CTRL_INFO;
+		fflags = r->fflags | RFTYPE_CTRL_INFO;
 		ret = rdtgroup_mkdir_info_resdir(s, s->name, fflags);
 		if (ret)
 			goto out_destroy;
 	}
 
 	for_each_mon_capable_rdt_resource(r) {
-		fflags =  r->fflags | RF_MON_INFO;
+		fflags = r->fflags | RFTYPE_MON_INFO;
 		sprintf(name, "%s_MON", r->name);
 		ret = rdtgroup_mkdir_info_resdir(r, name, fflags);
 		if (ret)
@@ -3709,7 +3709,7 @@  static int __init rdtgroup_setup_root(void)
 
 	list_add(&rdtgroup_default.rdtgroup_list, &rdt_all_groups);
 
-	ret = rdtgroup_add_files(kernfs_root_to_node(rdt_root), RF_CTRL_BASE);
+	ret = rdtgroup_add_files(kernfs_root_to_node(rdt_root), RFTYPE_CTRL_BASE);
 	if (ret) {
 		kernfs_destroy_root(rdt_root);
 		goto out;