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, 75 insertions, 0 deletions

diff --git a/drivers/misc/ibmasm/lowlevel.c b/drivers/misc/ibmasm/lowlevel.c
new file mode 100644
index 000000000..5313230f3
--- /dev/null
+++ b/drivers/misc/ibmasm/lowlevel.c
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * IBM ASM Service Processor Device Driver
+ *
+ * Copyright (C) IBM Corporation, 2004
+ *
+ * Author: Max Asböck <amax@us.ibm.com>
+ */
+
+#include "ibmasm.h"
+#include "lowlevel.h"
+#include "i2o.h"
+#include "dot_command.h"
+#include "remote.h"
+
+static struct i2o_header header = I2O_HEADER_TEMPLATE;
+
+
+int ibmasm_send_i2o_message(struct service_processor *sp)
+{
+	u32 mfa;
+	size_t command_size;
+	struct i2o_message *message;
+	struct command *command = sp->current_command;
+
+	command_size = get_dot_command_size(command->buffer);
+	if (command_size > command->buffer_size)
+		return 1;
+	if (command_size > I2O_COMMAND_SIZE)
+		command_size = I2O_COMMAND_SIZE;
+
+	mfa = get_mfa_inbound(sp->base_address);
+	if (!mfa)
+		return 1;
+
+	header.message_size = outgoing_message_size((unsigned int)command_size);
+	message = get_i2o_message(sp->base_address, mfa);
+
+	memcpy_toio(&message->header, &header, sizeof(struct i2o_header));
+	memcpy_toio(&message->data, command->buffer, command_size);
+
+	set_mfa_inbound(sp->base_address, mfa);
+
+	return 0;
+}
+
+irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id)
+{
+	u32	mfa;
+	struct service_processor *sp = (struct service_processor *)dev_id;
+	void __iomem *base_address = sp->base_address;
+	char tsbuf[32];
+
+	if (!sp_interrupt_pending(base_address))
+		return IRQ_NONE;
+
+	dbg("respond to interrupt at %s\n", get_timestamp(tsbuf));
+
+	if (mouse_interrupt_pending(sp)) {
+		ibmasm_handle_mouse_interrupt(sp);
+		clear_mouse_interrupt(sp);
+	}
+
+	mfa = get_mfa_outbound(base_address);
+	if (valid_mfa(mfa)) {
+		struct i2o_message *msg = get_i2o_message(base_address, mfa);
+		ibmasm_receive_message(sp, &msg->data, incoming_data_size(msg));
+	} else
+		dbg("didn't get a valid MFA\n");
+
+	set_mfa_outbound(base_address, mfa);
+	dbg("finished interrupt at   %s\n", get_timestamp(tsbuf));
+
+	return IRQ_HANDLED;
+}