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, 327 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
new file mode 100644
index 000000000..8e73d65f3
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -0,0 +1,327 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/export.h>
+#include <bcm63xx_dev_enet.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_regs.h>
+
+static const unsigned long bcm6348_regs_enetdmac[] = {
+	[ENETDMAC_CHANCFG]	= ENETDMAC_CHANCFG_REG,
+	[ENETDMAC_IR]		= ENETDMAC_IR_REG,
+	[ENETDMAC_IRMASK]	= ENETDMAC_IRMASK_REG,
+	[ENETDMAC_MAXBURST]	= ENETDMAC_MAXBURST_REG,
+};
+
+static const unsigned long bcm6345_regs_enetdmac[] = {
+	[ENETDMAC_CHANCFG]	= ENETDMA_6345_CHANCFG_REG,
+	[ENETDMAC_IR]		= ENETDMA_6345_IR_REG,
+	[ENETDMAC_IRMASK]	= ENETDMA_6345_IRMASK_REG,
+	[ENETDMAC_MAXBURST]	= ENETDMA_6345_MAXBURST_REG,
+	[ENETDMAC_BUFALLOC]	= ENETDMA_6345_BUFALLOC_REG,
+	[ENETDMAC_RSTART]	= ENETDMA_6345_RSTART_REG,
+	[ENETDMAC_FC]		= ENETDMA_6345_FC_REG,
+	[ENETDMAC_LEN]		= ENETDMA_6345_LEN_REG,
+};
+
+const unsigned long *bcm63xx_regs_enetdmac;
+EXPORT_SYMBOL(bcm63xx_regs_enetdmac);
+
+static __init void bcm63xx_enetdmac_regs_init(void)
+{
+	if (BCMCPU_IS_6345())
+		bcm63xx_regs_enetdmac = bcm6345_regs_enetdmac;
+	else
+		bcm63xx_regs_enetdmac = bcm6348_regs_enetdmac;
+}
+
+static struct resource shared_res[] = {
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device bcm63xx_enet_shared_device = {
+	.name		= "bcm63xx_enet_shared",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(shared_res),
+	.resource	= shared_res,
+};
+
+static int shared_device_registered;
+
+static u64 enet_dmamask = DMA_BIT_MASK(32);
+
+static struct resource enet0_res[] = {
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct bcm63xx_enet_platform_data enet0_pd;
+
+static struct platform_device bcm63xx_enet0_device = {
+	.name		= "bcm63xx_enet",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(enet0_res),
+	.resource	= enet0_res,
+	.dev		= {
+		.platform_data = &enet0_pd,
+		.dma_mask = &enet_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+static struct resource enet1_res[] = {
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct bcm63xx_enet_platform_data enet1_pd;
+
+static struct platform_device bcm63xx_enet1_device = {
+	.name		= "bcm63xx_enet",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(enet1_res),
+	.resource	= enet1_res,
+	.dev		= {
+		.platform_data = &enet1_pd,
+		.dma_mask = &enet_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+static struct resource enetsw_res[] = {
+	{
+		/* start & end filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		/* start filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		/* start filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct bcm63xx_enetsw_platform_data enetsw_pd;
+
+static struct platform_device bcm63xx_enetsw_device = {
+	.name		= "bcm63xx_enetsw",
+	.num_resources	= ARRAY_SIZE(enetsw_res),
+	.resource	= enetsw_res,
+	.dev		= {
+		.platform_data = &enetsw_pd,
+		.dma_mask = &enet_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+static int __init register_shared(void)
+{
+	int ret, chan_count;
+
+	if (shared_device_registered)
+		return 0;
+
+	bcm63xx_enetdmac_regs_init();
+
+	shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
+	shared_res[0].end = shared_res[0].start;
+	if (BCMCPU_IS_6345())
+		shared_res[0].end += (RSET_6345_ENETDMA_SIZE) - 1;
+	else
+		shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
+
+	if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_6368())
+		chan_count = 32;
+	else if (BCMCPU_IS_6345())
+		chan_count = 8;
+	else
+		chan_count = 16;
+
+	shared_res[1].start = bcm63xx_regset_address(RSET_ENETDMAC);
+	shared_res[1].end = shared_res[1].start;
+	shared_res[1].end += RSET_ENETDMAC_SIZE(chan_count)  - 1;
+
+	shared_res[2].start = bcm63xx_regset_address(RSET_ENETDMAS);
+	shared_res[2].end = shared_res[2].start;
+	shared_res[2].end += RSET_ENETDMAS_SIZE(chan_count)  - 1;
+
+	ret = platform_device_register(&bcm63xx_enet_shared_device);
+	if (ret)
+		return ret;
+	shared_device_registered = 1;
+
+	return 0;
+}
+
+int __init bcm63xx_enet_register(int unit,
+				 const struct bcm63xx_enet_platform_data *pd)
+{
+	struct platform_device *pdev;
+	struct bcm63xx_enet_platform_data *dpd;
+	int ret;
+
+	if (unit > 1)
+		return -ENODEV;
+
+	if (unit == 1 && (BCMCPU_IS_6338() || BCMCPU_IS_6345()))
+		return -ENODEV;
+
+	ret = register_shared();
+	if (ret)
+		return ret;
+
+	if (unit == 0) {
+		enet0_res[0].start = bcm63xx_regset_address(RSET_ENET0);
+		enet0_res[0].end = enet0_res[0].start;
+		enet0_res[0].end += RSET_ENET_SIZE - 1;
+		enet0_res[1].start = bcm63xx_get_irq_number(IRQ_ENET0);
+		enet0_res[2].start = bcm63xx_get_irq_number(IRQ_ENET0_RXDMA);
+		enet0_res[3].start = bcm63xx_get_irq_number(IRQ_ENET0_TXDMA);
+		pdev = &bcm63xx_enet0_device;
+	} else {
+		enet1_res[0].start = bcm63xx_regset_address(RSET_ENET1);
+		enet1_res[0].end = enet1_res[0].start;
+		enet1_res[0].end += RSET_ENET_SIZE - 1;
+		enet1_res[1].start = bcm63xx_get_irq_number(IRQ_ENET1);
+		enet1_res[2].start = bcm63xx_get_irq_number(IRQ_ENET1_RXDMA);
+		enet1_res[3].start = bcm63xx_get_irq_number(IRQ_ENET1_TXDMA);
+		pdev = &bcm63xx_enet1_device;
+	}
+
+	/* copy given platform data */
+	dpd = pdev->dev.platform_data;
+	memcpy(dpd, pd, sizeof(*pd));
+
+	/* adjust them in case internal phy is used */
+	if (dpd->use_internal_phy) {
+
+		/* internal phy only exists for enet0 */
+		if (unit == 1)
+			return -ENODEV;
+
+		dpd->phy_id = 1;
+		dpd->has_phy_interrupt = 1;
+		dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
+	}
+
+	dpd->dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
+	dpd->dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
+	if (BCMCPU_IS_6345()) {
+		dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_CHAINING_MASK;
+		dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_WRAP_EN_MASK;
+		dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_FLOWC_EN_MASK;
+		dpd->dma_chan_int_mask |= ENETDMA_IR_BUFDONE_MASK;
+		dpd->dma_chan_int_mask |= ENETDMA_IR_NOTOWNER_MASK;
+		dpd->dma_chan_width = ENETDMA_6345_CHAN_WIDTH;
+		dpd->dma_desc_shift = ENETDMA_6345_DESC_SHIFT;
+	} else {
+		dpd->dma_has_sram = true;
+		dpd->dma_chan_width = ENETDMA_CHAN_WIDTH;
+	}
+
+	if (unit == 0) {
+		dpd->rx_chan = 0;
+		dpd->tx_chan = 1;
+	} else {
+		dpd->rx_chan = 2;
+		dpd->tx_chan = 3;
+	}
+
+	ret = platform_device_register(pdev);
+	if (ret)
+		return ret;
+	return 0;
+}
+
+int __init
+bcm63xx_enetsw_register(const struct bcm63xx_enetsw_platform_data *pd)
+{
+	int ret;
+
+	if (!BCMCPU_IS_6328() && !BCMCPU_IS_6362() && !BCMCPU_IS_6368())
+		return -ENODEV;
+
+	ret = register_shared();
+	if (ret)
+		return ret;
+
+	enetsw_res[0].start = bcm63xx_regset_address(RSET_ENETSW);
+	enetsw_res[0].end = enetsw_res[0].start;
+	enetsw_res[0].end += RSET_ENETSW_SIZE - 1;
+	enetsw_res[1].start = bcm63xx_get_irq_number(IRQ_ENETSW_RXDMA0);
+	enetsw_res[2].start = bcm63xx_get_irq_number(IRQ_ENETSW_TXDMA0);
+	if (!enetsw_res[2].start)
+		enetsw_res[2].start = -1;
+
+	memcpy(bcm63xx_enetsw_device.dev.platform_data, pd, sizeof(*pd));
+
+	if (BCMCPU_IS_6328())
+		enetsw_pd.num_ports = ENETSW_PORTS_6328;
+	else if (BCMCPU_IS_6362() || BCMCPU_IS_6368())
+		enetsw_pd.num_ports = ENETSW_PORTS_6368;
+
+	enetsw_pd.dma_has_sram = true;
+	enetsw_pd.dma_chan_width = ENETDMA_CHAN_WIDTH;
+	enetsw_pd.dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
+	enetsw_pd.dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
+
+	ret = platform_device_register(&bcm63xx_enetsw_device);
+	if (ret)
+		return ret;
+
+	return 0;
+}