l4blk_request Struct Reference
[Requests]


Data Fields
l4blk_driver_t	driver
	Driver handle.
l4blk_blk_request_t	request
	Block request.
void *	sg_list
int	sg_num
	Number of elements in sg_list.
int	sg_type
l4_uint32_t	status
	Request status.
int	error
	Driver error code.
l4semaphore_t *	wait
	Client semaphore.
l4blk_callback_fn_t	done
	Done callback function.
void *	data
	Private client data.

Detailed Description

Client request structure, additionally to the server request structure it contains local client data

Definition at line 123 of file types.h.

Field Documentation

l4blk_driver_t l4blk_request::driver

Driver handle.

Definition at line 125 of file types.h.

l4blk_blk_request_t l4blk_request::request

Block request.

Definition at line 127 of file types.h.

void* l4blk_request::sg_list

Scatter-gather list, it must be set if no buffer address is specified in the request structure. There are two types of scatter-gather lists, l4blk_sg_phys_elem_t which contains the phys. addresses of buffers and l4blk_sg_ds_elem_t which contains dataspace regions which describe the buffer.

Definition at line 130 of file types.h.

int l4blk_request::sg_num

Number of elements in sg_list.

Definition at line 140 of file types.h.

int l4blk_request::sg_type

Type of the scatter gather list:

Definition at line 141 of file types.h.

l4_uint32_t l4blk_request::status

Request status.

Definition at line 147 of file types.h.

int l4blk_request::error

Driver error code.