scb_t Struct Reference

#include <mega_common.h>

Data Fields
caddr_t	ccb
struct list_head	list
unsigned long	gp
unsigned int	sno
struct scsi_cmnd *	scp
uint32_t	state
uint32_t	dma_direction
uint32_t	dma_type
uint16_t	dev_channel
uint16_t	dev_target
uint32_t	status
int	idx
u32	state
u8	raw_mbox [66]
u32	dma_type
u32	dma_direction
Scsi_Cmnd *	cmd
dma_addr_t	dma_h_bulkdata
dma_addr_t	dma_h_sgdata
mega_sglist *	sgl
mega_sgl64 *	sgl64
dma_addr_t	sgl_dma_addr
mega_passthru *	pthru
dma_addr_t	pthru_dma_addr
mega_ext_passthru *	epthru
dma_addr_t	epthru_dma_addr

Detailed Description

scb_t - scsi command control block : command control block for individual driver : list of control blocks : general purpose field for LLDs : all SCBs have a serial number : associated scsi command : current state of scb : direction of data transfer : transfer with sg list, buffer, or no data transfer : actual channel on the device : actual target on the device : completion status

This is our central data structure to issue commands the each driver. Driver specific data structures are maintained in the ccb field. scb provides a field 'gp', which can be used by LLD for its own purposes

dev_channel and dev_target must be initialized with the actual channel and target on the controller.

Definition at line 68 of file mega_common.h.

Field Documentation

caddr_t ccb

Definition at line 69 of file mega_common.h.

Scsi_Cmnd* cmd

Definition at line 189 of file megaraid.h.

uint16_t dev_channel

Definition at line 77 of file mega_common.h.

uint16_t dev_target

Definition at line 78 of file mega_common.h.

uint32_t dma_direction

Definition at line 75 of file mega_common.h.

u32 dma_direction

Definition at line 187 of file megaraid.h.

dma_addr_t dma_h_bulkdata

Definition at line 190 of file megaraid.h.

dma_addr_t dma_h_sgdata

Definition at line 191 of file megaraid.h.

uint32_t dma_type

Definition at line 76 of file mega_common.h.

u32 dma_type

Definition at line 186 of file megaraid.h.

mega_ext_passthru* epthru

Definition at line 199 of file megaraid.h.

dma_addr_t epthru_dma_addr

Definition at line 200 of file megaraid.h.

unsigned long gp

Definition at line 71 of file mega_common.h.

int idx

Definition at line 182 of file megaraid.h.

struct list_head list

Definition at line 70 of file mega_common.h.

mega_passthru* pthru

Definition at line 197 of file megaraid.h.

dma_addr_t pthru_dma_addr

Definition at line 198 of file megaraid.h.

u8 raw_mbox[66]

Definition at line 185 of file megaraid.h.

struct scsi_cmnd* scp

Definition at line 73 of file mega_common.h.

mega_sglist* sgl

Definition at line 193 of file megaraid.h.

mega_sgl64* sgl64

Definition at line 194 of file megaraid.h.

dma_addr_t sgl_dma_addr

Definition at line 195 of file megaraid.h.

unsigned int sno

Definition at line 72 of file mega_common.h.

uint32_t state

Definition at line 74 of file mega_common.h.

u32 state

Definition at line 183 of file megaraid.h.

uint32_t status

Definition at line 79 of file mega_common.h.

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The documentation for this struct was generated from the following files:

• drivers/scsi/megaraid/mega_common.h
• drivers/scsi/megaraid.h