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path: root/drivers/target/target_core_stat.c
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Diffstat (limited to 'drivers/target/target_core_stat.c')
-rw-r--r--drivers/target/target_core_stat.c268
1 files changed, 85 insertions, 183 deletions
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
index 6bdf2d8bd694..083205052be2 100644
--- a/drivers/target/target_core_stat.c
+++ b/drivers/target/target_core_stat.c
@@ -276,56 +276,39 @@ static ssize_t target_stat_lu_state_bit_show(struct config_item *item,
return snprintf(page, PAGE_SIZE, "exposed\n");
}
-static ssize_t target_stat_lu_num_cmds_show(struct config_item *item,
- char *page)
-{
- struct se_device *dev = to_stat_lu_dev(item);
- struct se_dev_io_stats *stats;
- unsigned int cpu;
- u32 cmds = 0;
-
- for_each_possible_cpu(cpu) {
- stats = per_cpu_ptr(dev->stats, cpu);
- cmds += stats->total_cmds;
- }
-
- /* scsiLuNumCommands */
- return snprintf(page, PAGE_SIZE, "%u\n", cmds);
-}
-
-static ssize_t target_stat_lu_read_mbytes_show(struct config_item *item,
- char *page)
-{
- struct se_device *dev = to_stat_lu_dev(item);
- struct se_dev_io_stats *stats;
- unsigned int cpu;
- u32 bytes = 0;
-
- for_each_possible_cpu(cpu) {
- stats = per_cpu_ptr(dev->stats, cpu);
- bytes += stats->read_bytes;
- }
-
- /* scsiLuReadMegaBytes */
- return snprintf(page, PAGE_SIZE, "%u\n", bytes >> 20);
-}
-
-static ssize_t target_stat_lu_write_mbytes_show(struct config_item *item,
- char *page)
-{
- struct se_device *dev = to_stat_lu_dev(item);
- struct se_dev_io_stats *stats;
- unsigned int cpu;
- u32 bytes = 0;
-
- for_each_possible_cpu(cpu) {
- stats = per_cpu_ptr(dev->stats, cpu);
- bytes += stats->write_bytes;
- }
-
- /* scsiLuWrittenMegaBytes */
- return snprintf(page, PAGE_SIZE, "%u\n", bytes >> 20);
-}
+#define per_cpu_stat_snprintf(stats_struct, prefix, field, shift) \
+static ssize_t \
+per_cpu_stat_##prefix##_snprintf(struct stats_struct __percpu *per_cpu_stats, \
+ char *page) \
+{ \
+ struct stats_struct *stats; \
+ unsigned int cpu; \
+ u64 sum = 0; \
+ \
+ for_each_possible_cpu(cpu) { \
+ stats = per_cpu_ptr(per_cpu_stats, cpu); \
+ sum += stats->field; \
+ } \
+ \
+ return snprintf(page, PAGE_SIZE, "%llu\n", sum >> shift); \
+}
+
+#define lu_show_per_cpu_stat(prefix, field, shift) \
+per_cpu_stat_snprintf(se_dev_io_stats, prefix, field, shift); \
+static ssize_t \
+target_stat_##prefix##_show(struct config_item *item, char *page) \
+{ \
+ struct se_device *dev = to_stat_lu_dev(item); \
+ \
+ return per_cpu_stat_##prefix##_snprintf(dev->stats, page); \
+} \
+
+/* scsiLuNumCommands */
+lu_show_per_cpu_stat(lu_num_cmds, total_cmds, 0);
+/* scsiLuReadMegaBytes */
+lu_show_per_cpu_stat(lu_read_mbytes, read_bytes, 20);
+/* scsiLuWrittenMegaBytes */
+lu_show_per_cpu_stat(lu_write_mbytes, write_bytes, 20);
static ssize_t target_stat_lu_resets_show(struct config_item *item, char *page)
{
@@ -623,53 +606,30 @@ static ssize_t target_stat_tgt_port_port_index_show(struct config_item *item,
return ret;
}
-static ssize_t target_stat_tgt_port_in_cmds_show(struct config_item *item,
- char *page)
-{
- struct se_lun *lun = to_stat_tgt_port(item);
- struct se_device *dev;
- ssize_t ret = -ENODEV;
-
- rcu_read_lock();
- dev = rcu_dereference(lun->lun_se_dev);
- if (dev)
- ret = snprintf(page, PAGE_SIZE, "%lu\n",
- atomic_long_read(&lun->lun_stats.cmd_pdus));
- rcu_read_unlock();
- return ret;
-}
-
-static ssize_t target_stat_tgt_port_write_mbytes_show(struct config_item *item,
- char *page)
-{
- struct se_lun *lun = to_stat_tgt_port(item);
- struct se_device *dev;
- ssize_t ret = -ENODEV;
-
- rcu_read_lock();
- dev = rcu_dereference(lun->lun_se_dev);
- if (dev)
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- (u32)(atomic_long_read(&lun->lun_stats.rx_data_octets) >> 20));
- rcu_read_unlock();
- return ret;
-}
-
-static ssize_t target_stat_tgt_port_read_mbytes_show(struct config_item *item,
- char *page)
-{
- struct se_lun *lun = to_stat_tgt_port(item);
- struct se_device *dev;
- ssize_t ret = -ENODEV;
-
- rcu_read_lock();
- dev = rcu_dereference(lun->lun_se_dev);
- if (dev)
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- (u32)(atomic_long_read(&lun->lun_stats.tx_data_octets) >> 20));
- rcu_read_unlock();
- return ret;
-}
+#define tgt_port_show_per_cpu_stat(prefix, field, shift) \
+per_cpu_stat_snprintf(scsi_port_stats, prefix, field, shift); \
+static ssize_t \
+target_stat_##prefix##_show(struct config_item *item, char *page) \
+{ \
+ struct se_lun *lun = to_stat_tgt_port(item); \
+ struct se_device *dev; \
+ int ret; \
+ \
+ rcu_read_lock(); \
+ dev = rcu_dereference(lun->lun_se_dev); \
+ if (!dev) { \
+ rcu_read_unlock(); \
+ return -ENODEV; \
+ } \
+ \
+ ret = per_cpu_stat_##prefix##_snprintf(lun->lun_stats, page); \
+ rcu_read_unlock(); \
+ return ret; \
+}
+
+tgt_port_show_per_cpu_stat(tgt_port_in_cmds, cmd_pdus, 0);
+tgt_port_show_per_cpu_stat(tgt_port_write_mbytes, rx_data_octets, 20);
+tgt_port_show_per_cpu_stat(tgt_port_read_mbytes, tx_data_octets, 20);
static ssize_t target_stat_tgt_port_hs_in_cmds_show(struct config_item *item,
char *page)
@@ -1035,92 +995,34 @@ static ssize_t target_stat_auth_att_count_show(struct config_item *item,
return ret;
}
-static ssize_t target_stat_auth_num_cmds_show(struct config_item *item,
- char *page)
-{
- struct se_lun_acl *lacl = auth_to_lacl(item);
- struct se_node_acl *nacl = lacl->se_lun_nacl;
- struct se_dev_entry_io_stats *stats;
- struct se_dev_entry *deve;
- unsigned int cpu;
- ssize_t ret;
- u32 cmds = 0;
-
- rcu_read_lock();
- deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
- if (!deve) {
- rcu_read_unlock();
- return -ENODEV;
- }
-
- for_each_possible_cpu(cpu) {
- stats = per_cpu_ptr(deve->stats, cpu);
- cmds += stats->total_cmds;
- }
-
- /* scsiAuthIntrOutCommands */
- ret = snprintf(page, PAGE_SIZE, "%u\n", cmds);
- rcu_read_unlock();
- return ret;
-}
-
-static ssize_t target_stat_auth_read_mbytes_show(struct config_item *item,
- char *page)
-{
- struct se_lun_acl *lacl = auth_to_lacl(item);
- struct se_node_acl *nacl = lacl->se_lun_nacl;
- struct se_dev_entry_io_stats *stats;
- struct se_dev_entry *deve;
- unsigned int cpu;
- ssize_t ret;
- u32 bytes = 0;
-
- rcu_read_lock();
- deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
- if (!deve) {
- rcu_read_unlock();
- return -ENODEV;
- }
-
- for_each_possible_cpu(cpu) {
- stats = per_cpu_ptr(deve->stats, cpu);
- bytes += stats->read_bytes;
- }
-
- /* scsiAuthIntrReadMegaBytes */
- ret = snprintf(page, PAGE_SIZE, "%u\n", bytes >> 20);
- rcu_read_unlock();
- return ret;
-}
-
-static ssize_t target_stat_auth_write_mbytes_show(struct config_item *item,
- char *page)
-{
- struct se_lun_acl *lacl = auth_to_lacl(item);
- struct se_node_acl *nacl = lacl->se_lun_nacl;
- struct se_dev_entry_io_stats *stats;
- struct se_dev_entry *deve;
- unsigned int cpu;
- ssize_t ret;
- u32 bytes = 0;
-
- rcu_read_lock();
- deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
- if (!deve) {
- rcu_read_unlock();
- return -ENODEV;
- }
-
- for_each_possible_cpu(cpu) {
- stats = per_cpu_ptr(deve->stats, cpu);
- bytes += stats->write_bytes;
- }
-
- /* scsiAuthIntrWrittenMegaBytes */
- ret = snprintf(page, PAGE_SIZE, "%u\n", bytes >> 20);
- rcu_read_unlock();
- return ret;
-}
+#define auth_show_per_cpu_stat(prefix, field, shift) \
+per_cpu_stat_snprintf(se_dev_entry_io_stats, prefix, field, shift); \
+static ssize_t \
+target_stat_##prefix##_show(struct config_item *item, char *page) \
+{ \
+ struct se_lun_acl *lacl = auth_to_lacl(item); \
+ struct se_node_acl *nacl = lacl->se_lun_nacl; \
+ struct se_dev_entry *deve; \
+ int ret; \
+ \
+ rcu_read_lock(); \
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun); \
+ if (!deve) { \
+ rcu_read_unlock(); \
+ return -ENODEV; \
+ } \
+ \
+ ret = per_cpu_stat_##prefix##_snprintf(deve->stats, page); \
+ rcu_read_unlock(); \
+ return ret; \
+}
+
+/* scsiAuthIntrOutCommands */
+auth_show_per_cpu_stat(auth_num_cmds, total_cmds, 0);
+/* scsiAuthIntrReadMegaBytes */
+auth_show_per_cpu_stat(auth_read_mbytes, read_bytes, 20);
+/* scsiAuthIntrWrittenMegaBytes */
+auth_show_per_cpu_stat(auth_write_mbytes, write_bytes, 20);
static ssize_t target_stat_auth_hs_num_cmds_show(struct config_item *item,
char *page)
generated by cgit (git 2.34.1) at 2025-12-06 14:28:28 +0000