Commit 3a749ea1 authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

Merge branch 'pci/endpoint' into next 

* pci/endpoint:
  tools: PCI: Add a missing option help line
  misc: pci_endpoint_test: Enable/Disable MSI using module param
  misc: pci_endpoint_test: Avoid using hard-coded BAR sizes
  misc: pci_endpoint_test: Add support to not enable MSI interrupts
  misc: pci_endpoint_test: Add support to provide aligned buffer addresses
  misc: pci_endpoint_test: Add support for PCI_ENDPOINT_TEST regs to be mapped to any BAR
  PCI: designware-ep: Do not disable BARs during initialization
  PCI: dra7xx: Reset all BARs during initialization
  PCI: dwc: designware: Provide page_size to pci_epc_mem
  PCI: endpoint: Remove the ->remove() callback
  PCI: endpoint: Add support to poll early for host commands
  PCI: endpoint: Add support to use _any_ BAR to map PCI_ENDPOINT_TEST regs
  PCI: endpoint: Do not reset *command* inadvertently
  PCI: endpoint: Add "volatile" to pci_epf_test_reg
  PCI: endpoint: Add support for configurable page size
  PCI: endpoint: Make ->remove() callback optional
  PCI: endpoint: Add an API to get matching "pci_epf_device_id"
  PCI: endpoint: Use of_dma_configure() to set initial DMA mask
parents 99fd1b95 e4758422

drivers/misc/pci_endpoint_test.c

+109 −23
Original line number Diff line number Diff line
@@ -72,6 +72,11 @@ static DEFINE_IDA(pci_endpoint_test_ida); 


#define to_endpoint_test(priv) container_of((priv), struct pci_endpoint_test, \

					    miscdev)



static bool no_msi;

module_param(no_msi, bool, 0444);

MODULE_PARM_DESC(no_msi, "Disable MSI interrupt in pci_endpoint_test");



enum pci_barno {

	BAR_0,

	BAR_1,
@@ -90,9 +95,15 @@ struct pci_endpoint_test { 
	/* mutex to protect the ioctls */

	struct mutex	mutex;

	struct miscdevice miscdev;

	enum pci_barno test_reg_bar;

	size_t alignment;

};



static int bar_size[] = { 4, 512, 1024, 16384, 131072, 1048576 };

struct pci_endpoint_test_data {

	enum pci_barno test_reg_bar;

	size_t alignment;

	bool no_msi;

};



static inline u32 pci_endpoint_test_readl(struct pci_endpoint_test *test,

					  u32 offset)
@@ -141,11 +152,15 @@ static bool pci_endpoint_test_bar(struct pci_endpoint_test *test, 
	int j;

	u32 val;

	int size;

	struct pci_dev *pdev = test->pdev;



	if (!test->bar[barno])

		return false;



	size = bar_size[barno];

	size = pci_resource_len(pdev, barno);



	if (barno == test->test_reg_bar)

		size = 0x4;



	for (j = 0; j < size; j += 4)

		pci_endpoint_test_bar_writel(test, barno, j, 0xA0A0A0A0);
@@ -202,16 +217,32 @@ static bool pci_endpoint_test_copy(struct pci_endpoint_test *test, size_t size) 
	dma_addr_t dst_phys_addr;

	struct pci_dev *pdev = test->pdev;

	struct device *dev = &pdev->dev;

	void *orig_src_addr;

	dma_addr_t orig_src_phys_addr;

	void *orig_dst_addr;

	dma_addr_t orig_dst_phys_addr;

	size_t offset;

	size_t alignment = test->alignment;

	u32 src_crc32;

	u32 dst_crc32;



	src_addr = dma_alloc_coherent(dev, size, &src_phys_addr, GFP_KERNEL);

	if (!src_addr) {

	orig_src_addr = dma_alloc_coherent(dev, size + alignment,

					   &orig_src_phys_addr, GFP_KERNEL);

	if (!orig_src_addr) {

		dev_err(dev, "failed to allocate source buffer\n");

		ret = false;

		goto err;

	}



	if (alignment && !IS_ALIGNED(orig_src_phys_addr, alignment)) {

		src_phys_addr = PTR_ALIGN(orig_src_phys_addr, alignment);

		offset = src_phys_addr - orig_src_phys_addr;

		src_addr = orig_src_addr + offset;

	} else {

		src_phys_addr = orig_src_phys_addr;

		src_addr = orig_src_addr;

	}



	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_LOWER_SRC_ADDR,

				 lower_32_bits(src_phys_addr));
@@ -221,11 +252,21 @@ static bool pci_endpoint_test_copy(struct pci_endpoint_test *test, size_t size) 
	get_random_bytes(src_addr, size);

	src_crc32 = crc32_le(~0, src_addr, size);



	dst_addr = dma_alloc_coherent(dev, size, &dst_phys_addr, GFP_KERNEL);

	if (!dst_addr) {

	orig_dst_addr = dma_alloc_coherent(dev, size + alignment,

					   &orig_dst_phys_addr, GFP_KERNEL);

	if (!orig_dst_addr) {

		dev_err(dev, "failed to allocate destination address\n");

		ret = false;

		goto err_src_addr;

		goto err_orig_src_addr;

	}



	if (alignment && !IS_ALIGNED(orig_dst_phys_addr, alignment)) {

		dst_phys_addr = PTR_ALIGN(orig_dst_phys_addr, alignment);

		offset = dst_phys_addr - orig_dst_phys_addr;

		dst_addr = orig_dst_addr + offset;

	} else {

		dst_phys_addr = orig_dst_phys_addr;

		dst_addr = orig_dst_addr;

	}



	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_LOWER_DST_ADDR,
@@ -245,10 +286,12 @@ static bool pci_endpoint_test_copy(struct pci_endpoint_test *test, size_t size) 
	if (dst_crc32 == src_crc32)

		ret = true;



	dma_free_coherent(dev, size, dst_addr, dst_phys_addr);

	dma_free_coherent(dev, size + alignment, orig_dst_addr,

			  orig_dst_phys_addr);



err_src_addr:

	dma_free_coherent(dev, size, src_addr, src_phys_addr);

err_orig_src_addr:

	dma_free_coherent(dev, size + alignment, orig_src_addr,

			  orig_src_phys_addr);



err:

	return ret;
@@ -262,15 +305,29 @@ static bool pci_endpoint_test_write(struct pci_endpoint_test *test, size_t size) 
	dma_addr_t phys_addr;

	struct pci_dev *pdev = test->pdev;

	struct device *dev = &pdev->dev;

	void *orig_addr;

	dma_addr_t orig_phys_addr;

	size_t offset;

	size_t alignment = test->alignment;

	u32 crc32;



	addr = dma_alloc_coherent(dev, size, &phys_addr, GFP_KERNEL);

	if (!addr) {

	orig_addr = dma_alloc_coherent(dev, size + alignment, &orig_phys_addr,

				       GFP_KERNEL);

	if (!orig_addr) {

		dev_err(dev, "failed to allocate address\n");

		ret = false;

		goto err;

	}



	if (alignment && !IS_ALIGNED(orig_phys_addr, alignment)) {

		phys_addr =  PTR_ALIGN(orig_phys_addr, alignment);

		offset = phys_addr - orig_phys_addr;

		addr = orig_addr + offset;

	} else {

		phys_addr = orig_phys_addr;

		addr = orig_addr;

	}



	get_random_bytes(addr, size);



	crc32 = crc32_le(~0, addr, size);
@@ -293,7 +350,7 @@ static bool pci_endpoint_test_write(struct pci_endpoint_test *test, size_t size) 
	if (reg & STATUS_READ_SUCCESS)

		ret = true;



	dma_free_coherent(dev, size, addr, phys_addr);

	dma_free_coherent(dev, size + alignment, orig_addr, orig_phys_addr);



err:

	return ret;
@@ -306,15 +363,29 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test, size_t size) 
	dma_addr_t phys_addr;

	struct pci_dev *pdev = test->pdev;

	struct device *dev = &pdev->dev;

	void *orig_addr;

	dma_addr_t orig_phys_addr;

	size_t offset;

	size_t alignment = test->alignment;

	u32 crc32;



	addr = dma_alloc_coherent(dev, size, &phys_addr, GFP_KERNEL);

	if (!addr) {

	orig_addr = dma_alloc_coherent(dev, size + alignment, &orig_phys_addr,

				       GFP_KERNEL);

	if (!orig_addr) {

		dev_err(dev, "failed to allocate destination address\n");

		ret = false;

		goto err;

	}



	if (alignment && !IS_ALIGNED(orig_phys_addr, alignment)) {

		phys_addr = PTR_ALIGN(orig_phys_addr, alignment);

		offset = phys_addr - orig_phys_addr;

		addr = orig_addr + offset;

	} else {

		phys_addr = orig_phys_addr;

		addr = orig_addr;

	}



	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_LOWER_DST_ADDR,

				 lower_32_bits(phys_addr));

	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_UPPER_DST_ADDR,
@@ -331,7 +402,7 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test, size_t size) 
	if (crc32 == pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_CHECKSUM))

		ret = true;



	dma_free_coherent(dev, size, addr, phys_addr);

	dma_free_coherent(dev, size + alignment, orig_addr, orig_phys_addr);

err:

	return ret;

}
@@ -383,13 +454,15 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, 
{

	int i;

	int err;

	int irq;

	int irq = 0;

	int id;

	char name[20];

	enum pci_barno bar;

	void __iomem *base;

	struct device *dev = &pdev->dev;

	struct pci_endpoint_test *test;

	struct pci_endpoint_test_data *data;

	enum pci_barno test_reg_bar = BAR_0;

	struct miscdevice *misc_device;



	if (pci_is_bridge(pdev))
@@ -399,7 +472,17 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, 
	if (!test)

		return -ENOMEM;



	test->test_reg_bar = 0;

	test->alignment = 0;

	test->pdev = pdev;



	data = (struct pci_endpoint_test_data *)ent->driver_data;

	if (data) {

		test_reg_bar = data->test_reg_bar;

		test->alignment = data->alignment;

		no_msi = data->no_msi;

	}



	init_completion(&test->irq_raised);

	mutex_init(&test->mutex);
@@ -417,9 +500,11 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, 


	pci_set_master(pdev);



	if (!no_msi) {

		irq = pci_alloc_irq_vectors(pdev, 1, 32, PCI_IRQ_MSI);

		if (irq < 0)

			dev_err(dev, "failed to get MSI interrupts\n");

	}



	err = devm_request_irq(dev, pdev->irq, pci_endpoint_test_irqhandler,

			       IRQF_SHARED, DRV_MODULE_NAME, test);
@@ -441,14 +526,15 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, 
		base = pci_ioremap_bar(pdev, bar);

		if (!base) {

			dev_err(dev, "failed to read BAR%d\n", bar);

			WARN_ON(bar == BAR_0);

			WARN_ON(bar == test_reg_bar);

		}

		test->bar[bar] = base;

	}



	test->base = test->bar[0];

	test->base = test->bar[test_reg_bar];

	if (!test->base) {

		dev_err(dev, "Cannot perform PCI test without BAR0\n");

		dev_err(dev, "Cannot perform PCI test without BAR%d\n",

			test_reg_bar);

		goto err_iounmap;

	}

drivers/pci/dwc/pci-dra7xx.c

+13 −0
Original line number Diff line number Diff line
@@ -337,10 +337,23 @@ static irqreturn_t dra7xx_pcie_irq_handler(int irq, void *arg) 
	return IRQ_HANDLED;

}



static void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar)

{

	u32 reg;



	reg = PCI_BASE_ADDRESS_0 + (4 * bar);

	dw_pcie_writel_dbi2(pci, reg, 0x0);

	dw_pcie_writel_dbi(pci, reg, 0x0);

}



static void dra7xx_pcie_ep_init(struct dw_pcie_ep *ep)

{

	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);

	struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pci);

	enum pci_barno bar;



	for (bar = BAR_0; bar <= BAR_5; bar++)

		dw_pcie_ep_reset_bar(pci, bar);



	dra7xx_pcie_enable_wrapper_interrupts(dra7xx);

}

drivers/pci/dwc/pcie-designware-ep.c

+2 −5
Original line number Diff line number Diff line
@@ -283,7 +283,6 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep) 
{

	int ret;

	void *addr;

	enum pci_barno bar;

	struct pci_epc *epc;

	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);

	struct device *dev = pci->dev;
@@ -312,9 +311,6 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep) 
		return -ENOMEM;

	ep->outbound_addr = addr;



	for (bar = BAR_0; bar <= BAR_5; bar++)

		dw_pcie_ep_reset_bar(pci, bar);



	if (ep->ops->ep_init)

		ep->ops->ep_init(ep);
@@ -328,7 +324,8 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep) 
	if (ret < 0)

		epc->max_functions = 1;



	ret = pci_epc_mem_init(epc, ep->phys_base, ep->addr_size);

	ret = __pci_epc_mem_init(epc, ep->phys_base, ep->addr_size,

				 ep->page_size);

	if (ret < 0) {

		dev_err(dev, "Failed to initialize address space\n");

		return ret;

drivers/pci/dwc/pcie-designware.h

+1 −0
Original line number Diff line number Diff line
@@ -189,6 +189,7 @@ struct dw_pcie_ep { 
	struct dw_pcie_ep_ops	*ops;

	phys_addr_t		phys_base;

	size_t			addr_size;

	size_t			page_size;

	u8			bar_to_atu[6];

	phys_addr_t		*outbound_addr;

	unsigned long		ib_window_map;

drivers/pci/endpoint/functions/pci-epf-test.c

+63 −36
Original line number Diff line number Diff line
@@ -54,6 +54,8 @@ static struct workqueue_struct *kpcitest_workqueue; 
struct pci_epf_test {

	void			*reg[6];

	struct pci_epf		*epf;

	enum pci_barno		test_reg_bar;

	bool			linkup_notifier;

	struct delayed_work	cmd_handler;

};
@@ -74,7 +76,12 @@ static struct pci_epf_header test_header = { 
	.interrupt_pin	= PCI_INTERRUPT_INTA,

};



static int bar_size[] = { 512, 1024, 16384, 131072, 1048576 };

struct pci_epf_test_data {

	enum pci_barno	test_reg_bar;

	bool		linkup_notifier;

};



static int bar_size[] = { 512, 512, 1024, 16384, 131072, 1048576 };



static int pci_epf_test_copy(struct pci_epf_test *epf_test)

{
@@ -86,7 +93,8 @@ static int pci_epf_test_copy(struct pci_epf_test *epf_test) 
	struct pci_epf *epf = epf_test->epf;

	struct device *dev = &epf->dev;

	struct pci_epc *epc = epf->epc;

	struct pci_epf_test_reg *reg = epf_test->reg[0];

	enum pci_barno test_reg_bar = epf_test->test_reg_bar;

	struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];



	src_addr = pci_epc_mem_alloc_addr(epc, &src_phys_addr, reg->size);

	if (!src_addr) {
@@ -145,7 +153,8 @@ static int pci_epf_test_read(struct pci_epf_test *epf_test) 
	struct pci_epf *epf = epf_test->epf;

	struct device *dev = &epf->dev;

	struct pci_epc *epc = epf->epc;

	struct pci_epf_test_reg *reg = epf_test->reg[0];

	enum pci_barno test_reg_bar = epf_test->test_reg_bar;

	struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];



	src_addr = pci_epc_mem_alloc_addr(epc, &phys_addr, reg->size);

	if (!src_addr) {
@@ -195,7 +204,8 @@ static int pci_epf_test_write(struct pci_epf_test *epf_test) 
	struct pci_epf *epf = epf_test->epf;

	struct device *dev = &epf->dev;

	struct pci_epc *epc = epf->epc;

	struct pci_epf_test_reg *reg = epf_test->reg[0];

	enum pci_barno test_reg_bar = epf_test->test_reg_bar;

	struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];



	dst_addr = pci_epc_mem_alloc_addr(epc, &phys_addr, reg->size);

	if (!dst_addr) {
@@ -247,7 +257,8 @@ static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test) 
	u8 msi_count;

	struct pci_epf *epf = epf_test->epf;

	struct pci_epc *epc = epf->epc;

	struct pci_epf_test_reg *reg = epf_test->reg[0];

	enum pci_barno test_reg_bar = epf_test->test_reg_bar;

	struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];



	reg->status |= STATUS_IRQ_RAISED;

	msi_count = pci_epc_get_msi(epc);
@@ -263,22 +274,28 @@ static void pci_epf_test_cmd_handler(struct work_struct *work) 
	int ret;

	u8 irq;

	u8 msi_count;

	u32 command;

	struct pci_epf_test *epf_test = container_of(work, struct pci_epf_test,

						     cmd_handler.work);

	struct pci_epf *epf = epf_test->epf;

	struct pci_epc *epc = epf->epc;

	struct pci_epf_test_reg *reg = epf_test->reg[0];

	enum pci_barno test_reg_bar = epf_test->test_reg_bar;

	struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];



	if (!reg->command)

	command = reg->command;

	if (!command)

		goto reset_handler;



	if (reg->command & COMMAND_RAISE_LEGACY_IRQ) {

	reg->command = 0;

	reg->status = 0;



	if (command & COMMAND_RAISE_LEGACY_IRQ) {

		reg->status = STATUS_IRQ_RAISED;

		pci_epc_raise_irq(epc, PCI_EPC_IRQ_LEGACY, 0);

		goto reset_handler;

	}



	if (reg->command & COMMAND_WRITE) {

	if (command & COMMAND_WRITE) {

		ret = pci_epf_test_write(epf_test);

		if (ret)

			reg->status |= STATUS_WRITE_FAIL;
@@ -288,7 +305,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work) 
		goto reset_handler;

	}



	if (reg->command & COMMAND_READ) {

	if (command & COMMAND_READ) {

		ret = pci_epf_test_read(epf_test);

		if (!ret)

			reg->status |= STATUS_READ_SUCCESS;
@@ -298,7 +315,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work) 
		goto reset_handler;

	}



	if (reg->command & COMMAND_COPY) {

	if (command & COMMAND_COPY) {

		ret = pci_epf_test_copy(epf_test);

		if (!ret)

			reg->status |= STATUS_COPY_SUCCESS;
@@ -308,9 +325,9 @@ static void pci_epf_test_cmd_handler(struct work_struct *work) 
		goto reset_handler;

	}



	if (reg->command & COMMAND_RAISE_MSI_IRQ) {

	if (command & COMMAND_RAISE_MSI_IRQ) {

		msi_count = pci_epc_get_msi(epc);

		irq = (reg->command & MSI_NUMBER_MASK) >> MSI_NUMBER_SHIFT;

		irq = (command & MSI_NUMBER_MASK) >> MSI_NUMBER_SHIFT;

		if (irq > msi_count || msi_count <= 0)

			goto reset_handler;

		reg->status = STATUS_IRQ_RAISED;
@@ -319,8 +336,6 @@ static void pci_epf_test_cmd_handler(struct work_struct *work) 
	}



reset_handler:

	reg->command = 0;



	queue_delayed_work(kpcitest_workqueue, &epf_test->cmd_handler,

			   msecs_to_jiffies(1));

}
@@ -358,6 +373,7 @@ static int pci_epf_test_set_bar(struct pci_epf *epf) 
	struct pci_epc *epc = epf->epc;

	struct device *dev = &epf->dev;

	struct pci_epf_test *epf_test = epf_get_drvdata(epf);

	enum pci_barno test_reg_bar = epf_test->test_reg_bar;



	flags = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_32;

	if (sizeof(dma_addr_t) == 0x8)
@@ -370,7 +386,7 @@ static int pci_epf_test_set_bar(struct pci_epf *epf) 
		if (ret) {

			pci_epf_free_space(epf, epf_test->reg[bar], bar);

			dev_err(dev, "failed to set BAR%d\n", bar);

			if (bar == BAR_0)

			if (bar == test_reg_bar)

				return ret;

		}

	}
@@ -384,17 +400,20 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf) 
	struct device *dev = &epf->dev;

	void *base;

	int bar;

	enum pci_barno test_reg_bar = epf_test->test_reg_bar;



	base = pci_epf_alloc_space(epf, sizeof(struct pci_epf_test_reg),

				   BAR_0);

				   test_reg_bar);

	if (!base) {

		dev_err(dev, "failed to allocated register space\n");

		return -ENOMEM;

	}

	epf_test->reg[0] = base;

	epf_test->reg[test_reg_bar] = base;



	for (bar = BAR_1; bar <= BAR_5; bar++) {

		base = pci_epf_alloc_space(epf, bar_size[bar - 1], bar);

	for (bar = BAR_0; bar <= BAR_5; bar++) {

		if (bar == test_reg_bar)

			continue;

		base = pci_epf_alloc_space(epf, bar_size[bar], bar);

		if (!base)

			dev_err(dev, "failed to allocate space for BAR%d\n",

				bar);
@@ -407,6 +426,7 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf) 
static int pci_epf_test_bind(struct pci_epf *epf)

{

	int ret;

	struct pci_epf_test *epf_test = epf_get_drvdata(epf);

	struct pci_epf_header *header = epf->header;

	struct pci_epc *epc = epf->epc;

	struct device *dev = &epf->dev;
@@ -432,13 +452,34 @@ static int pci_epf_test_bind(struct pci_epf *epf) 
	if (ret)

		return ret;



	if (!epf_test->linkup_notifier)

		queue_work(kpcitest_workqueue, &epf_test->cmd_handler.work);



	return 0;

}



static const struct pci_epf_device_id pci_epf_test_ids[] = {

	{

		.name = "pci_epf_test",

	},

	{},

};



static int pci_epf_test_probe(struct pci_epf *epf)

{

	struct pci_epf_test *epf_test;

	struct device *dev = &epf->dev;

	const struct pci_epf_device_id *match;

	struct pci_epf_test_data *data;

	enum pci_barno test_reg_bar = BAR_0;

	bool linkup_notifier = true;



	match = pci_epf_match_device(pci_epf_test_ids, epf);

	data = (struct pci_epf_test_data *)match->driver_data;

	if (data) {

		test_reg_bar = data->test_reg_bar;

		linkup_notifier = data->linkup_notifier;

	}



	epf_test = devm_kzalloc(dev, sizeof(*epf_test), GFP_KERNEL);

	if (!epf_test)
@@ -446,6 +487,8 @@ static int pci_epf_test_probe(struct pci_epf *epf) 


	epf->header = &test_header;

	epf_test->epf = epf;

	epf_test->test_reg_bar = test_reg_bar;

	epf_test->linkup_notifier = linkup_notifier;



	INIT_DELAYED_WORK(&epf_test->cmd_handler, pci_epf_test_cmd_handler);
@@ -453,31 +496,15 @@ static int pci_epf_test_probe(struct pci_epf *epf) 
	return 0;

}



static int pci_epf_test_remove(struct pci_epf *epf)

{

	struct pci_epf_test *epf_test = epf_get_drvdata(epf);



	kfree(epf_test);

	return 0;

}



static struct pci_epf_ops ops = {

	.unbind	= pci_epf_test_unbind,

	.bind	= pci_epf_test_bind,

	.linkup = pci_epf_test_linkup,

};



static const struct pci_epf_device_id pci_epf_test_ids[] = {

	{

		.name = "pci_epf_test",

	},

	{},

};



static struct pci_epf_driver test_driver = {

	.driver.name	= "pci_epf_test",

	.probe		= pci_epf_test_probe,

	.remove		= pci_epf_test_remove,

	.id_table	= pci_epf_test_ids,

	.ops		= &ops,

	.owner		= THIS_MODULE,

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