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authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-04 12:32:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-04 12:32:42 -0800
commit741f21e811752b440c505bf0149c4d16e9f3160d (patch)
treebf5726d45f799754d91446bbdfe78118deb4c266
parentd4d3b19212a1045ff8224e680375076b3677ede7 (diff)
parentcc4707b31198d27baae650db1721a2f05701db37 (diff)
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Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] Update default configuration. [S390] Have param.h simply include <asm-generic/param.h>. [S390] qdio: convert global statistics to per-device stats
-rw-r--r--arch/s390/defconfig86
-rw-r--r--arch/s390/include/asm/param.h28
-rw-r--r--drivers/s390/cio/Makefile2
-rw-r--r--drivers/s390/cio/qdio.h36
-rw-r--r--drivers/s390/cio/qdio_debug.c114
-rw-r--r--drivers/s390/cio/qdio_main.c71
-rw-r--r--drivers/s390/cio/qdio_perf.c149
-rw-r--r--drivers/s390/cio/qdio_perf.h62
-rw-r--r--drivers/s390/cio/qdio_thinint.c8
9 files changed, 254 insertions, 302 deletions
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index f4e53c6708dc..b416aa11b91e 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.31
-# Tue Sep 22 17:43:13 2009
+# Linux kernel version: 2.6.33-rc2
+# Mon Jan 4 09:03:07 2010
#
CONFIG_SCHED_MC=y
CONFIG_MMU=y
@@ -51,6 +51,7 @@ CONFIG_AUDIT=y
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
+# CONFIG_TINY_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
@@ -113,7 +114,6 @@ CONFIG_HAVE_PERF_EVENTS=y
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
-# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
@@ -149,21 +149,78 @@ CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_INTEGRITY is not set
+# CONFIG_BLK_CGROUP is not set
CONFIG_BLOCK_COMPAT=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
+# CONFIG_CFQ_GROUP_IOSCHED is not set
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
CONFIG_PREEMPT_NOTIFIERS=y
+CONFIG_ARCH_INLINE_SPIN_TRYLOCK=y
+CONFIG_ARCH_INLINE_SPIN_TRYLOCK_BH=y
+CONFIG_ARCH_INLINE_SPIN_LOCK=y
+CONFIG_ARCH_INLINE_SPIN_LOCK_BH=y
+CONFIG_ARCH_INLINE_SPIN_LOCK_IRQ=y
+CONFIG_ARCH_INLINE_SPIN_LOCK_IRQSAVE=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK_BH=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQ=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE=y
+CONFIG_ARCH_INLINE_READ_TRYLOCK=y
+CONFIG_ARCH_INLINE_READ_LOCK=y
+CONFIG_ARCH_INLINE_READ_LOCK_BH=y
+CONFIG_ARCH_INLINE_READ_LOCK_IRQ=y
+CONFIG_ARCH_INLINE_READ_LOCK_IRQSAVE=y
+CONFIG_ARCH_INLINE_READ_UNLOCK=y
+CONFIG_ARCH_INLINE_READ_UNLOCK_BH=y
+CONFIG_ARCH_INLINE_READ_UNLOCK_IRQ=y
+CONFIG_ARCH_INLINE_READ_UNLOCK_IRQRESTORE=y
+CONFIG_ARCH_INLINE_WRITE_TRYLOCK=y
+CONFIG_ARCH_INLINE_WRITE_LOCK=y
+CONFIG_ARCH_INLINE_WRITE_LOCK_BH=y
+CONFIG_ARCH_INLINE_WRITE_LOCK_IRQ=y
+CONFIG_ARCH_INLINE_WRITE_LOCK_IRQSAVE=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK_BH=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQ=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE=y
+# CONFIG_INLINE_SPIN_TRYLOCK is not set
+# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
+# CONFIG_INLINE_SPIN_LOCK is not set
+# CONFIG_INLINE_SPIN_LOCK_BH is not set
+# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
+# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
+# CONFIG_INLINE_SPIN_UNLOCK is not set
+# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
+# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
+# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
+# CONFIG_INLINE_READ_TRYLOCK is not set
+# CONFIG_INLINE_READ_LOCK is not set
+# CONFIG_INLINE_READ_LOCK_BH is not set
+# CONFIG_INLINE_READ_LOCK_IRQ is not set
+# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
+# CONFIG_INLINE_READ_UNLOCK is not set
+# CONFIG_INLINE_READ_UNLOCK_BH is not set
+# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
+# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
+# CONFIG_INLINE_WRITE_TRYLOCK is not set
+# CONFIG_INLINE_WRITE_LOCK is not set
+# CONFIG_INLINE_WRITE_LOCK_BH is not set
+# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
+# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
+# CONFIG_INLINE_WRITE_UNLOCK is not set
+# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
+# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
+# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
+# CONFIG_MUTEX_SPIN_ON_OWNER is not set
CONFIG_FREEZER=y
#
@@ -227,14 +284,13 @@ CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_PAGEFLAGS_EXTENDED=y
-CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_SPLIT_PTLOCK_CPUS=999999
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
-CONFIG_HAVE_MLOCK=y
-CONFIG_HAVE_MLOCKED_PAGE_BIT=y
+# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
#
@@ -339,6 +395,7 @@ CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=y
+# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
@@ -504,6 +561,10 @@ CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+
+#
+# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
+#
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_OSD is not set
CONFIG_BLK_DEV_RAM=y
@@ -710,7 +771,6 @@ CONFIG_S390_VMUR=m
# CONFIG_PPS is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_THERMAL is not set
-# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEMSTICK is not set
@@ -864,6 +924,7 @@ CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
+# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
@@ -931,7 +992,6 @@ CONFIG_BRANCH_PROFILE_NONE=y
CONFIG_SAMPLES=y
# CONFIG_SAMPLE_KOBJECT is not set
# CONFIG_SAMPLE_KPROBES is not set
-# CONFIG_KMEMCHECK is not set
#
# Security options
@@ -939,7 +999,11 @@ CONFIG_SAMPLES=y
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
-# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_DEFAULT_SECURITY_SELINUX is not set
+# CONFIG_DEFAULT_SECURITY_SMACK is not set
+# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y
#
diff --git a/arch/s390/include/asm/param.h b/arch/s390/include/asm/param.h
index 34aaa4603347..c616821bf2ac 100644
--- a/arch/s390/include/asm/param.h
+++ b/arch/s390/include/asm/param.h
@@ -1,30 +1,6 @@
-/*
- * include/asm-s390/param.h
- *
- * S390 version
- *
- * Derived from "include/asm-i386/param.h"
- */
-
#ifndef _ASMS390_PARAM_H
#define _ASMS390_PARAM_H
-#ifdef __KERNEL__
-# define HZ CONFIG_HZ /* Internal kernel timer frequency */
-# define USER_HZ 100 /* .. some user interfaces are in "ticks" */
-# define CLOCKS_PER_SEC (USER_HZ) /* like times() */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE 4096
-
-#ifndef NOGROUP
-#define NOGROUP (-1)
-#endif
-
-#define MAXHOSTNAMELEN 64 /* max length of hostname */
+#include <asm-generic/param.h>
-#endif
+#endif /* _ASMS390_PARAM_H */
diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile
index d033414f7599..e1b700a19648 100644
--- a/drivers/s390/cio/Makefile
+++ b/drivers/s390/cio/Makefile
@@ -10,5 +10,5 @@ obj-y += ccw_device.o cmf.o
obj-$(CONFIG_CHSC_SCH) += chsc_sch.o
obj-$(CONFIG_CCWGROUP) += ccwgroup.o
-qdio-objs := qdio_main.o qdio_thinint.o qdio_debug.o qdio_perf.o qdio_setup.o
+qdio-objs := qdio_main.o qdio_thinint.o qdio_debug.o qdio_setup.o
obj-$(CONFIG_QDIO) += qdio.o
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index ff7748a9199d..44f2f6a97f33 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -182,6 +182,34 @@ struct scssc_area {
u32:32;
} __attribute__ ((packed));
+struct qdio_dev_perf_stat {
+ unsigned int adapter_int;
+ unsigned int qdio_int;
+ unsigned int pci_request_int;
+
+ unsigned int tasklet_inbound;
+ unsigned int tasklet_inbound_resched;
+ unsigned int tasklet_inbound_resched2;
+ unsigned int tasklet_outbound;
+
+ unsigned int siga_read;
+ unsigned int siga_write;
+ unsigned int siga_sync;
+
+ unsigned int inbound_call;
+ unsigned int inbound_handler;
+ unsigned int stop_polling;
+ unsigned int inbound_queue_full;
+ unsigned int outbound_call;
+ unsigned int outbound_handler;
+ unsigned int fast_requeue;
+ unsigned int target_full;
+ unsigned int eqbs;
+ unsigned int eqbs_partial;
+ unsigned int sqbs;
+ unsigned int sqbs_partial;
+};
+
struct qdio_input_q {
/* input buffer acknowledgement flag */
int polling;
@@ -269,6 +297,7 @@ struct qdio_irq {
u32 *dsci; /* address of device state change indicator */
struct ccw_device *cdev;
struct dentry *debugfs_dev;
+ struct dentry *debugfs_perf;
unsigned long int_parm;
struct subchannel_id schid;
@@ -286,9 +315,10 @@ struct qdio_irq {
struct ciw aqueue;
struct qdio_ssqd_desc ssqd_desc;
-
void (*orig_handler) (struct ccw_device *, unsigned long, struct irb *);
+ struct qdio_dev_perf_stat perf_stat;
+ int perf_stat_enabled;
/*
* Warning: Leave these members together at the end so they won't be
* cleared in qdio_setup_irq.
@@ -311,6 +341,10 @@ struct qdio_irq {
(irq->qib.qfmt == QDIO_IQDIO_QFMT || \
css_general_characteristics.aif_osa)
+#define qperf(qdev,attr) qdev->perf_stat.attr
+#define qperf_inc(q,attr) if (q->irq_ptr->perf_stat_enabled) \
+ q->irq_ptr->perf_stat.attr++
+
/* the highest iqdio queue is used for multicast */
static inline int multicast_outbound(struct qdio_q *q)
{
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index 76769978285f..f49761ff9a00 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -55,13 +55,11 @@ static int qstat_show(struct seq_file *m, void *v)
if (!q)
return 0;
- seq_printf(m, "device state indicator: %d\n", *(u32 *)q->irq_ptr->dsci);
- seq_printf(m, "nr_used: %d\n", atomic_read(&q->nr_buf_used));
- seq_printf(m, "ftc: %d\n", q->first_to_check);
- seq_printf(m, "last_move: %d\n", q->last_move);
- seq_printf(m, "polling: %d\n", q->u.in.polling);
- seq_printf(m, "ack start: %d\n", q->u.in.ack_start);
- seq_printf(m, "ack count: %d\n", q->u.in.ack_count);
+ seq_printf(m, "DSCI: %d nr_used: %d\n",
+ *(u32 *)q->irq_ptr->dsci, atomic_read(&q->nr_buf_used));
+ seq_printf(m, "ftc: %d last_move: %d\n", q->first_to_check, q->last_move);
+ seq_printf(m, "polling: %d ack start: %d ack count: %d\n",
+ q->u.in.polling, q->u.in.ack_start, q->u.in.ack_count);
seq_printf(m, "slsb buffer states:\n");
seq_printf(m, "|0 |8 |16 |24 |32 |40 |48 |56 63|\n");
@@ -110,7 +108,6 @@ static ssize_t qstat_seq_write(struct file *file, const char __user *buf,
if (!q)
return 0;
-
if (q->is_input_q)
xchg(q->irq_ptr->dsci, 1);
local_bh_disable();
@@ -134,6 +131,98 @@ static const struct file_operations debugfs_fops = {
.release = single_release,
};
+static char *qperf_names[] = {
+ "Assumed adapter interrupts",
+ "QDIO interrupts",
+ "Requested PCIs",
+ "Inbound tasklet runs",
+ "Inbound tasklet resched",
+ "Inbound tasklet resched2",
+ "Outbound tasklet runs",
+ "SIGA read",
+ "SIGA write",
+ "SIGA sync",
+ "Inbound calls",
+ "Inbound handler",
+ "Inbound stop_polling",
+ "Inbound queue full",
+ "Outbound calls",
+ "Outbound handler",
+ "Outbound fast_requeue",
+ "Outbound target_full",
+ "QEBSM eqbs",
+ "QEBSM eqbs partial",
+ "QEBSM sqbs",
+ "QEBSM sqbs partial"
+};
+
+static int qperf_show(struct seq_file *m, void *v)
+{
+ struct qdio_irq *irq_ptr = m->private;
+ unsigned int *stat;
+ int i;
+
+ if (!irq_ptr)
+ return 0;
+ if (!irq_ptr->perf_stat_enabled) {
+ seq_printf(m, "disabled\n");
+ return 0;
+ }
+ stat = (unsigned int *)&irq_ptr->perf_stat;
+
+ for (i = 0; i < ARRAY_SIZE(qperf_names); i++)
+ seq_printf(m, "%26s:\t%u\n",
+ qperf_names[i], *(stat + i));
+ return 0;
+}
+
+static ssize_t qperf_seq_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct qdio_irq *irq_ptr = seq->private;
+ unsigned long val;
+ char buf[8];
+ int ret;
+
+ if (!irq_ptr)
+ return 0;
+ if (count >= sizeof(buf))
+ return -EINVAL;
+ if (copy_from_user(&buf, ubuf, count))
+ return -EFAULT;
+ buf[count] = 0;
+
+ ret = strict_strtoul(buf, 10, &val);
+ if (ret < 0)
+ return ret;
+
+ switch (val) {
+ case 0:
+ irq_ptr->perf_stat_enabled = 0;
+ memset(&irq_ptr->perf_stat, 0, sizeof(irq_ptr->perf_stat));
+ break;
+ case 1:
+ irq_ptr->perf_stat_enabled = 1;
+ break;
+ }
+ return count;
+}
+
+static int qperf_seq_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, qperf_show,
+ filp->f_path.dentry->d_inode->i_private);
+}
+
+static struct file_operations debugfs_perf_fops = {
+ .owner = THIS_MODULE,
+ .open = qperf_seq_open,
+ .read = seq_read,
+ .write = qperf_seq_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
static void setup_debugfs_entry(struct qdio_q *q, struct ccw_device *cdev)
{
char name[QDIO_DEBUGFS_NAME_LEN];
@@ -156,6 +245,14 @@ void qdio_setup_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev)
debugfs_root);
if (IS_ERR(irq_ptr->debugfs_dev))
irq_ptr->debugfs_dev = NULL;
+
+ irq_ptr->debugfs_perf = debugfs_create_file("statistics",
+ S_IFREG | S_IRUGO | S_IWUSR,
+ irq_ptr->debugfs_dev, irq_ptr,
+ &debugfs_perf_fops);
+ if (IS_ERR(irq_ptr->debugfs_perf))
+ irq_ptr->debugfs_perf = NULL;
+
for_each_input_queue(irq_ptr, q, i)
setup_debugfs_entry(q, cdev);
for_each_output_queue(irq_ptr, q, i)
@@ -171,6 +268,7 @@ void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cd
debugfs_remove(q->debugfs_q);
for_each_output_queue(irq_ptr, q, i)
debugfs_remove(q->debugfs_q);
+ debugfs_remove(irq_ptr->debugfs_perf);
debugfs_remove(irq_ptr->debugfs_dev);
}
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index b2275c5000e7..999fe80c4051 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -22,7 +22,6 @@
#include "device.h"
#include "qdio.h"
#include "qdio_debug.h"
-#include "qdio_perf.h"
MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>,"\
"Jan Glauber <jang@linux.vnet.ibm.com>");
@@ -126,7 +125,7 @@ static int qdio_do_eqbs(struct qdio_q *q, unsigned char *state,
int rc;
BUG_ON(!q->irq_ptr->sch_token);
- qdio_perf_stat_inc(&perf_stats.debug_eqbs_all);
+ qperf_inc(q, eqbs);
if (!q->is_input_q)
nr += q->irq_ptr->nr_input_qs;
@@ -139,7 +138,7 @@ again:
* buffers later.
*/
if ((ccq == 96) && (count != tmp_count)) {
- qdio_perf_stat_inc(&perf_stats.debug_eqbs_incomplete);
+ qperf_inc(q, eqbs_partial);
return (count - tmp_count);
}
@@ -182,7 +181,7 @@ static int qdio_do_sqbs(struct qdio_q *q, unsigned char state, int start,
return 0;
BUG_ON(!q->irq_ptr->sch_token);
- qdio_perf_stat_inc(&perf_stats.debug_sqbs_all);
+ qperf_inc(q, sqbs);
if (!q->is_input_q)
nr += q->irq_ptr->nr_input_qs;
@@ -191,7 +190,7 @@ again:
rc = qdio_check_ccq(q, ccq);
if (rc == 1) {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "SQBS again:%2d", ccq);
- qdio_perf_stat_inc(&perf_stats.debug_sqbs_incomplete);
+ qperf_inc(q, sqbs_partial);
goto again;
}
if (rc < 0) {
@@ -285,7 +284,7 @@ static inline int qdio_siga_sync(struct qdio_q *q, unsigned int output,
return 0;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-s:%1d", q->nr);
- qdio_perf_stat_inc(&perf_stats.siga_sync);
+ qperf_inc(q, siga_sync);
cc = do_siga_sync(q->irq_ptr->schid, output, input);
if (cc)
@@ -350,7 +349,7 @@ static inline int qdio_siga_input(struct qdio_q *q)
int cc;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-r:%1d", q->nr);
- qdio_perf_stat_inc(&perf_stats.siga_in);
+ qperf_inc(q, siga_read);
cc = do_siga_input(q->irq_ptr->schid, q->mask);
if (cc)
@@ -382,7 +381,7 @@ static inline void qdio_stop_polling(struct qdio_q *q)
return;
q->u.in.polling = 0;
- qdio_perf_stat_inc(&perf_stats.debug_stop_polling);
+ qperf_inc(q, stop_polling);
/* show the card that we are not polling anymore */
if (is_qebsm(q)) {
@@ -400,7 +399,7 @@ static void announce_buffer_error(struct qdio_q *q, int count)
/* special handling for no target buffer empty */
if ((!q->is_input_q &&
(q->sbal[q->first_to_check]->element[15].flags & 0xff) == 0x10)) {
- qdio_perf_stat_inc(&perf_stats.outbound_target_full);
+ qperf_inc(q, target_full);
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "OUTFULL FTC:%02x",
q->first_to_check);
return;
@@ -487,7 +486,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
inbound_primed(q, count);
q->first_to_check = add_buf(q->first_to_check, count);
if (atomic_sub(count, &q->nr_buf_used) == 0)
- qdio_perf_stat_inc(&perf_stats.inbound_queue_full);
+ qperf_inc(q, inbound_queue_full);
break;
case SLSB_P_INPUT_ERROR:
announce_buffer_error(q, count);
@@ -567,9 +566,10 @@ static void qdio_kick_handler(struct qdio_q *q)
count = sub_buf(end, start);
if (q->is_input_q) {
- qdio_perf_stat_inc(&perf_stats.inbound_handler);
+ qperf_inc(q, inbound_handler);
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%02x c:%02x", start, count);
} else
+ qperf_inc(q, outbound_handler);
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: s:%02x c:%02x",
start, count);
@@ -583,24 +583,28 @@ static void qdio_kick_handler(struct qdio_q *q)
static void __qdio_inbound_processing(struct qdio_q *q)
{
- qdio_perf_stat_inc(&perf_stats.tasklet_inbound);
+ qperf_inc(q, tasklet_inbound);
again:
if (!qdio_inbound_q_moved(q))
return;
qdio_kick_handler(q);
- if (!qdio_inbound_q_done(q))
+ if (!qdio_inbound_q_done(q)) {
/* means poll time is not yet over */
+ qperf_inc(q, tasklet_inbound_resched);
goto again;
+ }
qdio_stop_polling(q);
/*
* We need to check again to not lose initiative after
* resetting the ACK state.
*/
- if (!qdio_inbound_q_done(q))
+ if (!qdio_inbound_q_done(q)) {
+ qperf_inc(q, tasklet_inbound_resched2);
goto again;
+ }
}
void qdio_inbound_processing(unsigned long data)
@@ -688,7 +692,7 @@ static int qdio_kick_outbound_q(struct qdio_q *q)
return 0;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w:%1d", q->nr);
- qdio_perf_stat_inc(&perf_stats.siga_out);
+ qperf_inc(q, siga_write);
cc = qdio_siga_output(q, &busy_bit);
switch (cc) {
@@ -711,7 +715,7 @@ static int qdio_kick_outbound_q(struct qdio_q *q)
static void __qdio_outbound_processing(struct qdio_q *q)
{
- qdio_perf_stat_inc(&perf_stats.tasklet_outbound);
+ qperf_inc(q, tasklet_outbound);
BUG_ON(atomic_read(&q->nr_buf_used) < 0);
if (qdio_outbound_q_moved(q))
@@ -739,12 +743,9 @@ static void __qdio_outbound_processing(struct qdio_q *q)
*/
if (qdio_outbound_q_done(q))
del_timer(&q->u.out.timer);
- else {
- if (!timer_pending(&q->u.out.timer)) {
+ else
+ if (!timer_pending(&q->u.out.timer))
mod_timer(&q->u.out.timer, jiffies + 10 * HZ);
- qdio_perf_stat_inc(&perf_stats.debug_tl_out_timer);
- }
- }
return;
sched:
@@ -784,7 +785,7 @@ static inline void qdio_check_outbound_after_thinint(struct qdio_q *q)
static void __tiqdio_inbound_processing(struct qdio_q *q)
{
- qdio_perf_stat_inc(&perf_stats.thinint_inbound);
+ qperf_inc(q, tasklet_inbound);
qdio_sync_after_thinint(q);
/*
@@ -799,7 +800,7 @@ static void __tiqdio_inbound_processing(struct qdio_q *q)
qdio_kick_handler(q);
if (!qdio_inbound_q_done(q)) {
- qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
+ qperf_inc(q, tasklet_inbound_resched);
if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) {
tasklet_schedule(&q->tasklet);
return;
@@ -812,7 +813,7 @@ static void __tiqdio_inbound_processing(struct qdio_q *q)
* resetting the ACK state.
*/
if (!qdio_inbound_q_done(q)) {
- qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
+ qperf_inc(q, tasklet_inbound_resched2);
if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
tasklet_schedule(&q->tasklet);
}
@@ -851,8 +852,6 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr)
if (unlikely(irq_ptr->state == QDIO_IRQ_STATE_STOPPED))
return;
- qdio_perf_stat_inc(&perf_stats.pci_int);
-
for_each_input_queue(irq_ptr, q, i)
tasklet_schedule(&q->tasklet);
@@ -923,8 +922,6 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
struct qdio_irq *irq_ptr = cdev->private->qdio_data;
int cstat, dstat;
- qdio_perf_stat_inc(&perf_stats.qdio_int);
-
if (!intparm || !irq_ptr) {
DBF_ERROR("qint:%4x", cdev->private->schid.sch_no);
return;
@@ -1383,6 +1380,8 @@ static int handle_inbound(struct qdio_q *q, unsigned int callflags,
{
int used, diff;
+ qperf_inc(q, inbound_call);
+
if (!q->u.in.polling)
goto set;
@@ -1438,14 +1437,16 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
unsigned char state;
int used, rc = 0;
- qdio_perf_stat_inc(&perf_stats.outbound_handler);
+ qperf_inc(q, outbound_call);
count = set_buf_states(q, bufnr, SLSB_CU_OUTPUT_PRIMED, count);
used = atomic_add_return(count, &q->nr_buf_used);
BUG_ON(used > QDIO_MAX_BUFFERS_PER_Q);
- if (callflags & QDIO_FLAG_PCI_OUT)
+ if (callflags & QDIO_FLAG_PCI_OUT) {
q->u.out.pci_out_enabled = 1;
+ qperf_inc(q, pci_request_int);
+ }
else
q->u.out.pci_out_enabled = 0;
@@ -1484,7 +1485,7 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
if (state != SLSB_CU_OUTPUT_PRIMED)
rc = qdio_kick_outbound_q(q);
else
- qdio_perf_stat_inc(&perf_stats.fast_requeue);
+ qperf_inc(q, fast_requeue);
out:
tasklet_schedule(&q->tasklet);
@@ -1540,16 +1541,11 @@ static int __init init_QDIO(void)
rc = qdio_debug_init();
if (rc)
goto out_ti;
- rc = qdio_setup_perf_stats();
- if (rc)
- goto out_debug;
rc = tiqdio_register_thinints();
if (rc)
- goto out_perf;
+ goto out_debug;
return 0;
-out_perf:
- qdio_remove_perf_stats();
out_debug:
qdio_debug_exit();
out_ti:
@@ -1563,7 +1559,6 @@ static void __exit exit_QDIO(void)
{
tiqdio_unregister_thinints();
tiqdio_free_memory();
- qdio_remove_perf_stats();
qdio_debug_exit();
qdio_setup_exit();
}
diff --git a/drivers/s390/cio/qdio_perf.c b/drivers/s390/cio/qdio_perf.c
deleted file mode 100644
index 54f7c325a3e6..000000000000
--- a/drivers/s390/cio/qdio_perf.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * drivers/s390/cio/qdio_perf.c
- *
- * Copyright IBM Corp. 2008
- *
- * Author: Jan Glauber (jang@linux.vnet.ibm.com)
- */
-#include <linux/kernel.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <asm/ccwdev.h>
-
-#include "cio.h"
-#include "css.h"
-#include "device.h"
-#include "ioasm.h"
-#include "chsc.h"
-#include "qdio_debug.h"
-#include "qdio_perf.h"
-
-int qdio_performance_stats;
-struct qdio_perf_stats perf_stats;
-
-#ifdef CONFIG_PROC_FS
-static struct proc_dir_entry *qdio_perf_pde;
-#endif
-
-/*
- * procfs functions
- */
-static int qdio_perf_proc_show(struct seq_file *m, void *v)
-{
- seq_printf(m, "Number of qdio interrupts\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.qdio_int));
- seq_printf(m, "Number of PCI interrupts\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.pci_int));
- seq_printf(m, "Number of adapter interrupts\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.thin_int));
- seq_printf(m, "\n");
- seq_printf(m, "Inbound tasklet runs\t\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.tasklet_inbound));
- seq_printf(m, "Outbound tasklet runs\t\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.tasklet_outbound));
- seq_printf(m, "Adapter interrupt tasklet runs/loops\t\t: %li/%li\n",
- (long)atomic_long_read(&perf_stats.tasklet_thinint),
- (long)atomic_long_read(&perf_stats.tasklet_thinint_loop));
- seq_printf(m, "Adapter interrupt inbound tasklet runs/loops\t: %li/%li\n",
- (long)atomic_long_read(&perf_stats.thinint_inbound),
- (long)atomic_long_read(&perf_stats.thinint_inbound_loop));
- seq_printf(m, "\n");
- seq_printf(m, "Number of SIGA In issued\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.siga_in));
- seq_printf(m, "Number of SIGA Out issued\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.siga_out));
- seq_printf(m, "Number of SIGA Sync issued\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.siga_sync));
- seq_printf(m, "\n");
- seq_printf(m, "Number of inbound transfers\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.inbound_handler));
- seq_printf(m, "Number of outbound transfers\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.outbound_handler));
- seq_printf(m, "\n");
- seq_printf(m, "Number of fast requeues (outg. SBAL w/o SIGA)\t: %li\n",
- (long)atomic_long_read(&perf_stats.fast_requeue));
- seq_printf(m, "Number of outbound target full condition\t: %li\n",
- (long)atomic_long_read(&perf_stats.outbound_target_full));
- seq_printf(m, "Number of inbound queue full condition\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.inbound_queue_full));
- seq_printf(m, "Number of outbound tasklet mod_timer calls\t: %li\n",
- (long)atomic_long_read(&perf_stats.debug_tl_out_timer));
- seq_printf(m, "Number of stop polling calls\t\t\t: %li\n",
- (long)atomic_long_read(&perf_stats.debug_stop_polling));
- seq_printf(m, "AI inbound tasklet loops after stop polling\t: %li\n",
- (long)atomic_long_read(&perf_stats.thinint_inbound_loop2));
- seq_printf(m, "QEBSM EQBS total/incomplete\t\t\t: %li/%li\n",
- (long)atomic_long_read(&perf_stats.debug_eqbs_all),
- (long)atomic_long_read(&perf_stats.debug_eqbs_incomplete));
- seq_printf(m, "QEBSM SQBS total/incomplete\t\t\t: %li/%li\n",
- (long)atomic_long_read(&perf_stats.debug_sqbs_all),
- (long)atomic_long_read(&perf_stats.debug_sqbs_incomplete));
- seq_printf(m, "\n");
- return 0;
-}
-static int qdio_perf_seq_open(struct inode *inode, struct file *filp)
-{
- return single_open(filp, qdio_perf_proc_show, NULL);
-}
-
-static const struct file_operations qdio_perf_proc_fops = {
- .owner = THIS_MODULE,
- .open = qdio_perf_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * sysfs functions
- */
-static ssize_t qdio_perf_stats_show(struct bus_type *bus, char *buf)
-{
- return sprintf(buf, "%i\n", qdio_performance_stats ? 1 : 0);
-}
-
-static ssize_t qdio_perf_stats_store(struct bus_type *bus,
- const char *buf, size_t count)
-{
- unsigned long i;
-
- if (strict_strtoul(buf, 16, &i) != 0)
- return -EINVAL;
- if ((i != 0) && (i != 1))
- return -EINVAL;
- if (i == qdio_performance_stats)
- return count;
-
- qdio_performance_stats = i;
- /* reset performance statistics */
- if (i == 0)
- memset(&perf_stats, 0, sizeof(struct qdio_perf_stats));
- return count;
-}
-
-static BUS_ATTR(qdio_performance_stats, 0644, qdio_perf_stats_show,
- qdio_perf_stats_store);
-
-int __init qdio_setup_perf_stats(void)
-{
- int rc;
-
- rc = bus_create_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
- if (rc)
- return rc;
-
-#ifdef CONFIG_PROC_FS
- memset(&perf_stats, 0, sizeof(struct qdio_perf_stats));
- qdio_perf_pde = proc_create("qdio_perf", S_IFREG | S_IRUGO,
- NULL, &qdio_perf_proc_fops);
-#endif
- return 0;
-}
-
-void qdio_remove_perf_stats(void)
-{
-#ifdef CONFIG_PROC_FS
- remove_proc_entry("qdio_perf", NULL);
-#endif
- bus_remove_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
-}
diff --git a/drivers/s390/cio/qdio_perf.h b/drivers/s390/cio/qdio_perf.h
deleted file mode 100644
index 12454231dc8b..000000000000
--- a/drivers/s390/cio/qdio_perf.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * drivers/s390/cio/qdio_perf.h
- *
- * Copyright IBM Corp. 2008
- *
- * Author: Jan Glauber (jang@linux.vnet.ibm.com)
- */
-#ifndef QDIO_PERF_H
-#define QDIO_PERF_H
-
-#include <linux/types.h>
-#include <asm/atomic.h>
-
-struct qdio_perf_stats {
- /* interrupt handler calls */
- atomic_long_t qdio_int;
- atomic_long_t pci_int;
- atomic_long_t thin_int;
-
- /* tasklet runs */
- atomic_long_t tasklet_inbound;
- atomic_long_t tasklet_outbound;
- atomic_long_t tasklet_thinint;
- atomic_long_t tasklet_thinint_loop;
- atomic_long_t thinint_inbound;
- atomic_long_t thinint_inbound_loop;
- atomic_long_t thinint_inbound_loop2;
-
- /* signal adapter calls */
- atomic_long_t siga_out;
- atomic_long_t siga_in;
- atomic_long_t siga_sync;
-
- /* misc */
- atomic_long_t inbound_handler;
- atomic_long_t outbound_handler;
- atomic_long_t fast_requeue;
- atomic_long_t outbound_target_full;
- atomic_long_t inbound_queue_full;
-
- /* for debugging */
- atomic_long_t debug_tl_out_timer;
- atomic_long_t debug_stop_polling;
- atomic_long_t debug_eqbs_all;
- atomic_long_t debug_eqbs_incomplete;
- atomic_long_t debug_sqbs_all;
- atomic_long_t debug_sqbs_incomplete;
-};
-
-extern struct qdio_perf_stats perf_stats;
-extern int qdio_performance_stats;
-
-static inline void qdio_perf_stat_inc(atomic_long_t *count)
-{
- if (qdio_performance_stats)
- atomic_long_inc(count);
-}
-
-int qdio_setup_perf_stats(void);
-void qdio_remove_perf_stats(void);
-
-#endif
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 981a77ea7ee2..091d904d3182 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -1,9 +1,7 @@
/*
* linux/drivers/s390/cio/thinint_qdio.c
*
- * thin interrupt support for qdio
- *
- * Copyright 2000-2008 IBM Corp.
+ * Copyright 2000,2009 IBM Corp.
* Author(s): Utz Bacher <utz.bacher@de.ibm.com>
* Cornelia Huck <cornelia.huck@de.ibm.com>
* Jan Glauber <jang@linux.vnet.ibm.com>
@@ -19,7 +17,6 @@
#include "ioasm.h"
#include "qdio.h"
#include "qdio_debug.h"
-#include "qdio_perf.h"
/*
* Restriction: only 63 iqdio subchannels would have its own indicator,
@@ -132,8 +129,6 @@ static void tiqdio_thinint_handler(void *ind, void *drv_data)
{
struct qdio_q *q;
- qdio_perf_stat_inc(&perf_stats.thin_int);
-
/*
* SVS only when needed: issue SVS to benefit from iqdio interrupt
* avoidance (SVS clears adapter interrupt suppression overwrite)
@@ -154,6 +149,7 @@ static void tiqdio_thinint_handler(void *ind, void *drv_data)
list_for_each_entry_rcu(q, &tiq_list, entry)
/* only process queues from changed sets */
if (*q->irq_ptr->dsci) {
+ qperf_inc(q, adapter_int);
/* only clear it if the indicator is non-shared */
if (!shared_ind(q->irq_ptr))