scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 140 insertions, 0 deletions

diff --git a/drivers/parisc/wax.c b/drivers/parisc/wax.c
new file mode 100644
index 000000000..a82a5e88e
--- /dev/null
+++ b/drivers/parisc/wax.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *	WAX Device Driver
+ *
+ *	(c) Copyright 2000 The Puffin Group Inc.
+ *
+ *	(c) 2000-2023 by Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+#include "gsc.h"
+
+#define WAX_GSC_IRQ	7	/* Hardcoded Interrupt for GSC */
+
+static void wax_choose_irq(struct parisc_device *dev, void *ctrl)
+{
+	int irq;
+
+	switch (dev->id.sversion) {
+		case 0x73:	irq =  1; break; /* i8042 General */
+		case 0x8c:	irq =  6; break; /* Serial */
+		case 0x90:	irq = 10; break; /* EISA */
+		default:	return;		 /* Unknown */
+	}
+
+	gsc_asic_assign_irq(ctrl, irq, &dev->irq);
+
+	switch (dev->id.sversion) {
+		case 0x73:	irq =  2; break; /* i8042 High-priority */
+		case 0x90:	irq =  0; break; /* EISA NMI */
+		default:	return;		 /* No secondary IRQ */
+	}
+
+	gsc_asic_assign_irq(ctrl, irq, &dev->aux_irq);
+}
+
+static void __init
+wax_init_irq(struct gsc_asic *wax)
+{
+	unsigned long base = wax->hpa;
+
+	/* Wax-off */
+	gsc_writel(0x00000000, base+OFFSET_IMR);
+
+	/* clear pending interrupts */
+	gsc_readl(base+OFFSET_IRR);
+
+	/* We're not really convinced we want to reset the onboard
+         * devices. Firmware does it for us...
+	 */
+
+	/* Resets */
+//	gsc_writel(0xFFFFFFFF, base+0x1000); /* HIL */
+//	gsc_writel(0xFFFFFFFF, base+0x2000); /* RS232-B on Wax */
+}
+
+static int __init wax_init_chip(struct parisc_device *dev)
+{
+	struct gsc_asic *wax;
+	struct parisc_device *parent;
+	int ret;
+
+	wax = kzalloc_obj(*wax);
+	if (!wax)
+		return -ENOMEM;
+
+	wax->name = "wax";
+	wax->hpa = dev->hpa.start;
+
+	wax->version = 0;   /* gsc_readb(wax->hpa+WAX_VER); */
+	printk(KERN_INFO "%s at 0x%lx found.\n", wax->name, wax->hpa);
+
+	/* Stop wax hissing for a bit */
+	wax_init_irq(wax);
+
+	/* the IRQ wax should use */
+	dev->irq = gsc_claim_irq(&wax->gsc_irq, WAX_GSC_IRQ);
+	if (dev->irq < 0) {
+		printk(KERN_ERR "%s(): cannot get GSC irq\n",
+				__func__);
+		kfree(wax);
+		return -EBUSY;
+	}
+
+	wax->eim = ((u32) wax->gsc_irq.txn_addr) | wax->gsc_irq.txn_data;
+
+	ret = request_irq(wax->gsc_irq.irq, gsc_asic_intr, 0, "wax", wax);
+	if (ret < 0) {
+		kfree(wax);
+		return ret;
+	}
+
+	/* enable IRQ's for devices below WAX */
+	gsc_writel(wax->eim, wax->hpa + OFFSET_IAR);
+
+	/* Done init'ing, register this driver */
+	ret = gsc_common_setup(dev, wax);
+	if (ret) {
+		kfree(wax);
+		return ret;
+	}
+
+	gsc_fixup_irqs(dev, wax, wax_choose_irq);
+	/* On 715-class machines, Wax EISA is a sibling of Wax, not a child. */
+	parent = parisc_parent(dev);
+	if (parent->id.hw_type != HPHW_IOA) {
+		gsc_fixup_irqs(parent, wax, wax_choose_irq);
+	}
+
+	return ret;
+}
+
+static const struct parisc_device_id wax_tbl[] __initconst = {
+	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008e },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(parisc, wax_tbl);
+
+static struct parisc_driver wax_driver __refdata = {
+	.name =		"wax",
+	.id_table =	wax_tbl,
+	.probe =	wax_init_chip,
+};
+
+static int __init wax_init(void)
+{
+	return register_parisc_driver(&wax_driver);
+}
+arch_initcall(wax_init);