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RDMA/rtrs-clt: Follow "one entry one value" rule for IO migration stats

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This commit divides the sysfs entry cpu_migration into 2 different entries
One for "from cpus" and the other for "to cpus".

Link: https://lore.kernel.org/r/20210922125333.351454-8-haris.iqbal@ionos.com
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Reviewed-by: Gioh Kim <gi-oh.kim@ionos.com>
Reviewed-by: Aleksei Marov <aleksei.marov@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Md Haris Iqbal 2021-09-22 14:53:33 +02:00 committed by Jason Gunthorpe
parent dea7bb3ad3
commit 3f3fe682f2
3 changed files with 28 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c
View File

@ -37,29 +37,38 @@ void rtrs_clt_inc_failover_cnt(struct rtrs_clt_stats *stats)
s->rdma.failover_cnt++;
}
int rtrs_clt_stats_migration_cnt_to_str(struct rtrs_clt_stats *stats, char *buf)
int rtrs_clt_stats_migration_from_cnt_to_str(struct rtrs_clt_stats *stats, char *buf)
{
struct rtrs_clt_stats_pcpu *s;
size_t used;
int cpu;
used = sysfs_emit(buf, " ");
for_each_possible_cpu(cpu)
used += sysfs_emit_at(buf, used, " CPU%u", cpu);
used += sysfs_emit_at(buf, used, "\nfrom:");
used = 0;
for_each_possible_cpu(cpu) {
s = per_cpu_ptr(stats->pcpu_stats, cpu);
used += sysfs_emit_at(buf, used, " %d",
used += sysfs_emit_at(buf, used, "%d ",
atomic_read(&s->cpu_migr.from));
}
used += sysfs_emit_at(buf, used, "\nto :");
used += sysfs_emit_at(buf, used, "\n");
return used;
}
int rtrs_clt_stats_migration_to_cnt_to_str(struct rtrs_clt_stats *stats, char *buf)
{
struct rtrs_clt_stats_pcpu *s;
size_t used;
int cpu;
used = 0;
for_each_possible_cpu(cpu) {
s = per_cpu_ptr(stats->pcpu_stats, cpu);
used += sysfs_emit_at(buf, used, " %d", s->cpu_migr.to);
used += sysfs_emit_at(buf, used, "%d ", s->cpu_migr.to);
}
used += sysfs_emit_at(buf, used, "\n");
return used;

11
drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
View File

@ -296,8 +296,12 @@ static struct kobj_attribute rtrs_clt_remove_path_attr =
__ATTR(remove_path, 0644, rtrs_clt_remove_path_show,
rtrs_clt_remove_path_store);
STAT_ATTR(struct rtrs_clt_stats, cpu_migration,
rtrs_clt_stats_migration_cnt_to_str,
STAT_ATTR(struct rtrs_clt_stats, cpu_migration_from,
rtrs_clt_stats_migration_from_cnt_to_str,
rtrs_clt_reset_cpu_migr_stats);
STAT_ATTR(struct rtrs_clt_stats, cpu_migration_to,
rtrs_clt_stats_migration_to_cnt_to_str,
rtrs_clt_reset_cpu_migr_stats);
STAT_ATTR(struct rtrs_clt_stats, reconnects,
@ -313,7 +317,8 @@ STAT_ATTR(struct rtrs_clt_stats, reset_all,
rtrs_clt_reset_all_stats);
static struct attribute *rtrs_clt_stats_attrs[] = {
&cpu_migration_attr.attr,
&cpu_migration_from_attr.attr,
&cpu_migration_to_attr.attr,
&reconnects_attr.attr,
&rdma_attr.attr,
&reset_all_attr.attr,

3
drivers/infiniband/ulp/rtrs/rtrs-clt.h
View File

@ -226,7 +226,8 @@ int rtrs_clt_reset_rdma_lat_distr_stats(struct rtrs_clt_stats *stats,
ssize_t rtrs_clt_stats_rdma_lat_distr_to_str(struct rtrs_clt_stats *stats,
char *page);
int rtrs_clt_reset_cpu_migr_stats(struct rtrs_clt_stats *stats, bool enable);
int rtrs_clt_stats_migration_cnt_to_str(struct rtrs_clt_stats *stats, char *buf);
int rtrs_clt_stats_migration_from_cnt_to_str(struct rtrs_clt_stats *stats, char *buf);
int rtrs_clt_stats_migration_to_cnt_to_str(struct rtrs_clt_stats *stats, char *buf);
int rtrs_clt_reset_reconnects_stat(struct rtrs_clt_stats *stats, bool enable);
int rtrs_clt_stats_reconnects_to_str(struct rtrs_clt_stats *stats, char *buf);
int rtrs_clt_reset_rdma_stats(struct rtrs_clt_stats *stats, bool enable);