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>

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);