pci.c File Reference

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Data Structures
struct	linux_pci_region_t
struct	linux_pci_irq_t
struct	linux_pci_device_t
struct	linux_pci_main_t

Macros
#define	pci_log_debug(vm, dev, f, ...)
#define	pci_log_err(vm, dev, f, ...)

Enumerations
enum	linux_pci_device_type_t { LINUX_PCI_DEVICE_TYPE_UNKNOWN, LINUX_PCI_DEVICE_TYPE_UIO, LINUX_PCI_DEVICE_TYPE_VFIO }

Functions
static linux_pci_device_t *	linux_pci_get_device (vlib_pci_dev_handle_t h)
uword	vlib_pci_get_private_data (vlib_main_t *vm, vlib_pci_dev_handle_t h)
void	vlib_pci_set_private_data (vlib_main_t *vm, vlib_pci_dev_handle_t h, uword private_data)
vlib_pci_addr_t *	vlib_pci_get_addr (vlib_main_t *vm, vlib_pci_dev_handle_t h)
u32	vlib_pci_get_numa_node (vlib_main_t *vm, vlib_pci_dev_handle_t h)
u32	vlib_pci_get_num_msix_interrupts (vlib_main_t *vm, vlib_pci_dev_handle_t h)
clib_error_t *	pci_bus_init (vlib_main_t *vm)
vlib_pci_device_info_t *	vlib_pci_get_device_info (vlib_main_t *vm, vlib_pci_addr_t *addr, clib_error_t **error)
static int	directory_exists (char *path)
clib_error_t *	vlib_pci_bind_to_uio (vlib_main_t *vm, vlib_pci_addr_t *addr, char *uio_drv_name)
static clib_error_t *	scan_uio_dir (void *arg, u8 *path_name, u8 *file_name)
static clib_error_t *	vfio_set_irqs (vlib_main_t *vm, linux_pci_device_t *p, u32 index, u32 start, u32 count, u32 flags, int *efds)
static clib_error_t *	linux_pci_uio_read_ready (clib_file_t *uf)
static clib_error_t *	linux_pci_vfio_unmask_intx (vlib_main_t *vm, linux_pci_device_t *d)
static clib_error_t *	linux_pci_uio_error_ready (clib_file_t *uf)
static clib_error_t *	linux_pci_vfio_msix_read_ready (clib_file_t *uf)
static clib_error_t *	linux_pci_vfio_intx_read_ready (clib_file_t *uf)
static clib_error_t *	linux_pci_vfio_error_ready (clib_file_t *uf)
static clib_error_t *	add_device_uio (vlib_main_t *vm, linux_pci_device_t *p, vlib_pci_device_info_t *di, pci_device_registration_t *r)
clib_error_t *	vlib_pci_register_intx_handler (vlib_main_t *vm, vlib_pci_dev_handle_t h, pci_intx_handler_function_t *intx_handler)
clib_error_t *	vlib_pci_register_msix_handler (vlib_main_t *vm, vlib_pci_dev_handle_t h, u32 start, u32 count, pci_msix_handler_function_t *msix_handler)
clib_error_t *	vlib_pci_enable_msix_irq (vlib_main_t *vm, vlib_pci_dev_handle_t h, u16 start, u16 count)
clib_error_t *	vlib_pci_disable_msix_irq (vlib_main_t *vm, vlib_pci_dev_handle_t h, u16 start, u16 count)
static clib_error_t *	add_device_vfio (vlib_main_t *vm, linux_pci_device_t *p, vlib_pci_device_info_t *di, pci_device_registration_t *r)
clib_error_t *	vlib_pci_read_write_config (vlib_main_t *vm, vlib_pci_dev_handle_t h, vlib_read_or_write_t read_or_write, uword address, void *data, u32 n_bytes)
static clib_error_t *	vlib_pci_region (vlib_main_t *vm, vlib_pci_dev_handle_t h, u32 bar, int *fd, u64 *size, u64 *offset)
static clib_error_t *	vlib_pci_map_region_int (vlib_main_t *vm, vlib_pci_dev_handle_t h, u32 bar, u8 *addr, void **result)
clib_error_t *	vlib_pci_map_region (vlib_main_t *vm, vlib_pci_dev_handle_t h, u32 resource, void **result)
clib_error_t *	vlib_pci_map_region_fixed (vlib_main_t *vm, vlib_pci_dev_handle_t h, u32 resource, u8 *addr, void **result)
clib_error_t *	vlib_pci_io_region (vlib_main_t *vm, vlib_pci_dev_handle_t h, u32 resource)
clib_error_t *	vlib_pci_read_write_io (vlib_main_t *vm, vlib_pci_dev_handle_t h, vlib_read_or_write_t read_or_write, uword offset, void *data, u32 length)
clib_error_t *	vlib_pci_map_dma (vlib_main_t *vm, vlib_pci_dev_handle_t h, void *ptr)
int	vlib_pci_supports_virtual_addr_dma (vlib_main_t *vm, vlib_pci_dev_handle_t h)
clib_error_t *	vlib_pci_device_open (vlib_main_t *vm, vlib_pci_addr_t *addr, pci_device_id_t ids[], vlib_pci_dev_handle_t *handle)
void	vlib_pci_device_close (vlib_main_t *vm, vlib_pci_dev_handle_t h)
void	init_device_from_registered (vlib_main_t *vm, vlib_pci_device_info_t *di)
static clib_error_t *	scan_pci_addr (void *arg, u8 *dev_dir_name, u8 *ignored)
static int	pci_addr_cmp (void *v1, void *v2)
vlib_pci_addr_t *	vlib_pci_get_all_dev_addrs ()
clib_error_t *	linux_pci_init (vlib_main_t *vm)

Variables
static const char *	sysfs_pci_dev_path = "/sys/bus/pci/devices"
static const char *	sysfs_pci_drv_path = "/sys/bus/pci/drivers"
static char *	sysfs_mod_vfio_noiommu
linux_pci_main_t	linux_pci_main

Macro Definition Documentation

#define pci_log_debug	(		vm,
			dev,
			f,
			...
	)

Value:

vlib_log(VLIB_LOG_LEVEL_DEBUG, pci_main.log_default, "%U: " f, \
           format_vlib_pci_addr(), vlib_pci_get_addr(vm, dev->handle), ## __VA_ARGS__)

Definition at line 63 of file pci.c.

#define pci_log_err	(		vm,
			dev,
			f,
			...
	)

Value:

vlib_log(VLIB_LOG_LEVEL_ERR, pci_main.log_default, "%U: " f, \
           format_vlib_pci_addr(), vlib_pci_get_addr(vm, dev->handle), ## __VA_ARGS__)

Definition at line 66 of file pci.c.

Enumeration Type Documentation

enum linux_pci_device_type_t

Enumerator
LINUX_PCI_DEVICE_TYPE_UNKNOWN
LINUX_PCI_DEVICE_TYPE_UIO
LINUX_PCI_DEVICE_TYPE_VFIO

Definition at line 88 of file pci.c.

Function Documentation

static clib_error_t* add_device_uio ( vlib_main_t *  vm, linux_pci_device_t *  p, vlib_pci_device_info_t *  di, pci_device_registration_t *  r  )

static

Definition at line 719 of file pci.c.

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static clib_error_t* add_device_vfio ( vlib_main_t *  vm, linux_pci_device_t *  p, vlib_pci_device_info_t *  di, pci_device_registration_t *  r  )

static

Definition at line 923 of file pci.c.

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static int directory_exists ( char *  path )

static

Definition at line 376 of file pci.c.

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void init_device_from_registered	(	vlib_main_t *	vm,
		vlib_pci_device_info_t *	di
	)

Definition at line 1343 of file pci.c.

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static linux_pci_device_t* linux_pci_get_device ( vlib_pci_dev_handle_t  h )

static

Definition at line 141 of file pci.c.

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clib_error_t* linux_pci_init

(

vlib_main_t *

vm

)

Definition at line 1448 of file pci.c.

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static clib_error_t* linux_pci_uio_error_ready ( clib_file_t *  uf )

static

Definition at line 664 of file pci.c.

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static clib_error_t* linux_pci_uio_read_ready ( clib_file_t *  uf )

static

Definition at line 637 of file pci.c.

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static clib_error_t* linux_pci_vfio_error_ready ( clib_file_t *  uf )

static

Definition at line 711 of file pci.c.

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static clib_error_t* linux_pci_vfio_intx_read_ready ( clib_file_t *  uf )

static

Definition at line 691 of file pci.c.

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static clib_error_t* linux_pci_vfio_msix_read_ready ( clib_file_t *  uf )

static

Definition at line 672 of file pci.c.

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static clib_error_t* linux_pci_vfio_unmask_intx ( vlib_main_t *  vm, linux_pci_device_t *  d  )

static

Definition at line 657 of file pci.c.

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static int pci_addr_cmp ( void *  v1, void *  v2  )

static

Definition at line 1405 of file pci.c.

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clib_error_t* pci_bus_init

(

vlib_main_t *

vm

)

Definition at line 252 of file pci.c.

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static clib_error_t* scan_pci_addr ( void *  arg, u8 *  dev_dir_name, u8 *  ignored  )

static

Definition at line 1382 of file pci.c.

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static clib_error_t* scan_uio_dir ( void *  arg, u8 *  path_name, u8 *  file_name  )

static

Definition at line 566 of file pci.c.

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static clib_error_t* vfio_set_irqs ( vlib_main_t *  vm, linux_pci_device_t *  p, u32  index, u32  start, u32  count, u32  flags, int *  efds  )

static

Definition at line 581 of file pci.c.

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clib_error_t* vlib_pci_bind_to_uio	(	vlib_main_t *	vm,
		vlib_pci_addr_t *	addr,
		char *	uio_drv_name
	)

Definition at line 386 of file pci.c.

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void vlib_pci_device_close	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h
	)

Definition at line 1275 of file pci.c.

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clib_error_t* vlib_pci_device_open	(	vlib_main_t *	vm,
		vlib_pci_addr_t *	addr,
		pci_device_id_t	ids[],
		vlib_pci_dev_handle_t *	handle
	)

Definition at line 1215 of file pci.c.

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clib_error_t* vlib_pci_disable_msix_irq	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		u16	start,
		u16	count
	)

Definition at line 905 of file pci.c.

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clib_error_t* vlib_pci_enable_msix_irq	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		u16	start,
		u16	count
	)

Definition at line 883 of file pci.c.

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vlib_pci_addr_t* vlib_pci_get_addr	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h
	)

Definition at line 163 of file pci.c.

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vlib_pci_addr_t* vlib_pci_get_all_dev_addrs

(

)

Definition at line 1430 of file pci.c.

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vlib_pci_device_info_t* vlib_pci_get_device_info	(	vlib_main_t *	vm,
		vlib_pci_addr_t *	addr,
		clib_error_t **	error
	)

Definition at line 202 of file pci.c.

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u32 vlib_pci_get_num_msix_interrupts	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h
	)

Definition at line 177 of file pci.c.

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u32 vlib_pci_get_numa_node	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h
	)

Definition at line 170 of file pci.c.

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uword vlib_pci_get_private_data	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h
	)

Definition at line 148 of file pci.c.

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clib_error_t* vlib_pci_io_region	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		u32	resource
	)

Definition at line 1160 of file pci.c.

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clib_error_t* vlib_pci_map_dma	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		void *	ptr
	)

Definition at line 1196 of file pci.c.

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clib_error_t* vlib_pci_map_region	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		u32	resource,
		void **	result
	)

Definition at line 1146 of file pci.c.

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clib_error_t* vlib_pci_map_region_fixed	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		u32	resource,
		u8 *	addr,
		void **	result
	)

Definition at line 1153 of file pci.c.

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static clib_error_t* vlib_pci_map_region_int ( vlib_main_t *  vm, vlib_pci_dev_handle_t  h, u32  bar, u8 *  addr, void **  result  )

static

Definition at line 1108 of file pci.c.

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clib_error_t* vlib_pci_read_write_config	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		vlib_read_or_write_t	read_or_write,
		uword	address,
		void *	data,
		u32	n_bytes
	)

Definition at line 1017 of file pci.c.

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clib_error_t* vlib_pci_read_write_io	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		vlib_read_or_write_t	read_or_write,
		uword	offset,
		void *	data,
		u32	length
	)

Definition at line 1176 of file pci.c.

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static clib_error_t* vlib_pci_region ( vlib_main_t *  vm, vlib_pci_dev_handle_t  h, u32  bar, int *  fd, u64 *  size, u64 *  offset  )

static

Definition at line 1038 of file pci.c.

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clib_error_t* vlib_pci_register_intx_handler	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		pci_intx_handler_function_t *	intx_handler
	)

Definition at line 775 of file pci.c.

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clib_error_t* vlib_pci_register_msix_handler	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		u32	start,
		u32	count,
		pci_msix_handler_function_t *	msix_handler
	)

Definition at line 826 of file pci.c.

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void vlib_pci_set_private_data	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h,
		uword	private_data
	)

Definition at line 155 of file pci.c.

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int vlib_pci_supports_virtual_addr_dma	(	vlib_main_t *	vm,
		vlib_pci_dev_handle_t	h
	)

Definition at line 1207 of file pci.c.

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Variable Documentation

linux_pci_main_t linux_pci_main

Definition at line 199 of file pci.c.

char* sysfs_mod_vfio_noiommu

static

Initial value:

=
  "/sys/module/vfio/parameters/enable_unsafe_noiommu_mode"

Definition at line 60 of file pci.c.

const char* sysfs_pci_dev_path = "/sys/bus/pci/devices"

static

Definition at line 58 of file pci.c.

const char* sysfs_pci_drv_path = "/sys/bus/pci/drivers"

static

Definition at line 59 of file pci.c.