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authorSebastian Ott <sebott@linux.vnet.ibm.com>2015-06-29 18:47:28 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2016-04-15 18:16:40 +0200
commitf9dc447ec8f1f0a9f2ba4e4d5a61758f8df4acd8 (patch)
tree47c14271fe449c8987cca6a0cccc4306fc7322a1 /arch/s390/pci
parent8fd575200db5b53f6ea6818dd017f1b43190db12 (diff)
downloadlinux-f9dc447ec8f1f0a9f2ba4e4d5a61758f8df4acd8.tar.bz2
s390/pci: fmb enhancements
Implement the function type specific function measurement block used in new machines. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/pci')
-rw-r--r--arch/s390/pci/pci_debug.c61
1 files changed, 47 insertions, 14 deletions
diff --git a/arch/s390/pci/pci_debug.c b/arch/s390/pci/pci_debug.c
index c555de3d12d6..38993b156924 100644
--- a/arch/s390/pci/pci_debug.c
+++ b/arch/s390/pci/pci_debug.c
@@ -1,5 +1,5 @@
/*
- * Copyright IBM Corp. 2012
+ * Copyright IBM Corp. 2012,2015
*
* Author(s):
* Jan Glauber <jang@linux.vnet.ibm.com>
@@ -23,22 +23,45 @@ EXPORT_SYMBOL_GPL(pci_debug_msg_id);
debug_info_t *pci_debug_err_id;
EXPORT_SYMBOL_GPL(pci_debug_err_id);
-static char *pci_perf_names[] = {
- /* hardware counters */
+static char *pci_common_names[] = {
"Load operations",
"Store operations",
"Store block operations",
"Refresh operations",
+};
+
+static char *pci_fmt0_names[] = {
"DMA read bytes",
"DMA write bytes",
};
+static char *pci_fmt1_names[] = {
+ "Received bytes",
+ "Received packets",
+ "Transmitted bytes",
+ "Transmitted packets",
+};
+
+static char *pci_fmt2_names[] = {
+ "Consumed work units",
+ "Maximum work units",
+};
+
static char *pci_sw_names[] = {
"Allocated pages",
"Mapped pages",
"Unmapped pages",
};
+static void pci_fmb_show(struct seq_file *m, char *name[], int length,
+ u64 *data)
+{
+ int i;
+
+ for (i = 0; i < length; i++, data++)
+ seq_printf(m, "%26s:\t%llu\n", name[i], *data);
+}
+
static void pci_sw_counter_show(struct seq_file *m)
{
struct zpci_dev *zdev = m->private;
@@ -53,8 +76,6 @@ static void pci_sw_counter_show(struct seq_file *m)
static int pci_perf_show(struct seq_file *m, void *v)
{
struct zpci_dev *zdev = m->private;
- u64 *stat;
- int i;
if (!zdev)
return 0;
@@ -72,15 +93,27 @@ static int pci_perf_show(struct seq_file *m, void *v)
seq_printf(m, "Samples: %u\n", zdev->fmb->samples);
seq_printf(m, "Last update TOD: %Lx\n", zdev->fmb->last_update);
- /* hardware counters */
- stat = (u64 *) &zdev->fmb->ld_ops;
- for (i = 0; i < 4; i++)
- seq_printf(m, "%26s:\t%llu\n",
- pci_perf_names[i], *(stat + i));
- if (zdev->fmb->dma_valid)
- for (i = 4; i < 6; i++)
- seq_printf(m, "%26s:\t%llu\n",
- pci_perf_names[i], *(stat + i));
+ pci_fmb_show(m, pci_common_names, ARRAY_SIZE(pci_common_names),
+ &zdev->fmb->ld_ops);
+
+ switch (zdev->fmb->format) {
+ case 0:
+ if (!(zdev->fmb->fmt_ind & ZPCI_FMB_DMA_COUNTER_VALID))
+ break;
+ pci_fmb_show(m, pci_fmt0_names, ARRAY_SIZE(pci_fmt0_names),
+ &zdev->fmb->fmt0.dma_rbytes);
+ break;
+ case 1:
+ pci_fmb_show(m, pci_fmt1_names, ARRAY_SIZE(pci_fmt1_names),
+ &zdev->fmb->fmt1.rx_bytes);
+ break;
+ case 2:
+ pci_fmb_show(m, pci_fmt2_names, ARRAY_SIZE(pci_fmt2_names),
+ &zdev->fmb->fmt2.consumed_work_units);
+ break;
+ default:
+ seq_puts(m, "Unknown format\n");
+ }
pci_sw_counter_show(m);
mutex_unlock(&zdev->lock);