fcp.h File Reference

Fibre Channel Protocol. More...

#include <stdint.h>
#include <ipxe/fc.h>
#include <ipxe/fcels.h>
#include <ipxe/scsi.h>

Go to the source code of this file.

Data Structures
struct	fcp_cmnd
	An FCP command IU. More...
struct	fcp_xfer_rdy
	An FCP transfer ready IU. More...
struct	fcp_rsp
	An FCP response IU. More...
struct	fcp_prli_service_parameters
	An FCP PRLI service parameter page. More...
struct	fcp_description
	An FCP device description. More...

Macros
#define	FCP_CMND_WRDATA   0x01
	Command includes data-out. More...
#define	FCP_CMND_RDDATA   0x02
	Command includes data-in. More...
#define	FCP_TAG_MAGIC   0x18ae0000
	FCP tag magic marker. More...
#define	FCP_RSP_RESPONSE_LEN_VALID   0x01
	Response length field is valid. More...
#define	FCP_RSP_SENSE_LEN_VALID   0x02
	Sense length field is valid. More...
#define	FCP_RSP_RESIDUAL_OVERRUN   0x04
	Residual represents overrun. More...
#define	FCP_RSP_RESIDUAL_UNDERRUN   0x08
	Residual represents underrun. More...
#define	FCP_PRLI_NO_WRITE_RDY   0x0001
	Write FCP_XFER_RDY disabled. More...
#define	FCP_PRLI_NO_READ_RDY   0x0002
	Read FCP_XFER_RDY disabled. More...
#define	FCP_PRLI_TARGET   0x0010
	Has target functionality. More...
#define	FCP_PRLI_INITIATOR   0x0020
	Has initiator functionality. More...
#define	FCP_PRLI_OVERLAY   0x0040
	Data overlay allowed. More...
#define	FCP_PRLI_CONF   0x0080
	Confirm completion allowed. More...
#define	FCP_PRLI_RETRY   0x0100
	Retransmission supported. More...
#define	FCP_PRLI_TASK_RETRY   0x0200
	Task retry identification. More...
#define	FCP_PRLI_REC   0x0400
	REC ELS supported. More...
#define	FCP_PRLI_ENH_DISC   0x0800
	Enhanced discovery supported. More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
static void *	fcp_rsp_response_data (struct fcp_rsp *rsp)
	Get response data portion of FCP response. More...
static size_t	fcp_rsp_response_data_len (struct fcp_rsp *rsp)
	Get length of response data portion of FCP response. More...
static void *	fcp_rsp_sense_data (struct fcp_rsp *rsp)
	Get sense data portion of FCP response. More...
static size_t	fcp_rsp_sense_data_len (struct fcp_rsp *rsp)
	Get length of sense data portion of FCP response. More...

Detailed Description

Fibre Channel Protocol.

Definition in file fcp.h.

Macro Definition Documentation

FCP_CMND_WRDATA

#define FCP_CMND_WRDATA   0x01

Command includes data-out.

Definition at line 37 of file fcp.h.

FCP_CMND_RDDATA

#define FCP_CMND_RDDATA   0x02

Command includes data-in.

Definition at line 40 of file fcp.h.

FCP_TAG_MAGIC

#define FCP_TAG_MAGIC   0x18ae0000

FCP tag magic marker.

Definition at line 43 of file fcp.h.

FCP_RSP_RESPONSE_LEN_VALID

#define FCP_RSP_RESPONSE_LEN_VALID   0x01

Response length field is valid.

Definition at line 74 of file fcp.h.

FCP_RSP_SENSE_LEN_VALID

#define FCP_RSP_SENSE_LEN_VALID   0x02

Sense length field is valid.

Definition at line 77 of file fcp.h.

FCP_RSP_RESIDUAL_OVERRUN

#define FCP_RSP_RESIDUAL_OVERRUN   0x04

Residual represents overrun.

Definition at line 80 of file fcp.h.

FCP_RSP_RESIDUAL_UNDERRUN

#define FCP_RSP_RESIDUAL_UNDERRUN   0x08

Residual represents underrun.

Definition at line 83 of file fcp.h.

FCP_PRLI_NO_WRITE_RDY

#define FCP_PRLI_NO_WRITE_RDY   0x0001

Write FCP_XFER_RDY disabled.

Definition at line 137 of file fcp.h.

FCP_PRLI_NO_READ_RDY

#define FCP_PRLI_NO_READ_RDY   0x0002

Read FCP_XFER_RDY disabled.

Definition at line 140 of file fcp.h.

FCP_PRLI_TARGET

#define FCP_PRLI_TARGET   0x0010

Has target functionality.

Definition at line 143 of file fcp.h.

FCP_PRLI_INITIATOR

#define FCP_PRLI_INITIATOR   0x0020

Has initiator functionality.

Definition at line 146 of file fcp.h.

FCP_PRLI_OVERLAY

#define FCP_PRLI_OVERLAY   0x0040

Data overlay allowed.

Definition at line 149 of file fcp.h.

FCP_PRLI_CONF

#define FCP_PRLI_CONF   0x0080

Confirm completion allowed.

Definition at line 152 of file fcp.h.

FCP_PRLI_RETRY

#define FCP_PRLI_RETRY   0x0100

Retransmission supported.

Definition at line 155 of file fcp.h.

FCP_PRLI_TASK_RETRY

#define FCP_PRLI_TASK_RETRY   0x0200

Task retry identification.

Definition at line 158 of file fcp.h.

FCP_PRLI_REC

#define FCP_PRLI_REC   0x0400

REC ELS supported.

Definition at line 161 of file fcp.h.

FCP_PRLI_ENH_DISC

#define FCP_PRLI_ENH_DISC   0x0800

Enhanced discovery supported.

Definition at line 164 of file fcp.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

fcp_rsp_response_data()

static void* fcp_rsp_response_data ( struct fcp_rsp *  rsp )

inlinestatic

Get response data portion of FCP response.

Parameters

rsp	FCP response

Return values

response_data

Response data, or NULL if not present

Definition at line 91 of file fcp.h.

                                                                   {
        return ( ( rsp->flags & FCP_RSP_RESPONSE_LEN_VALID ) ?
                 ( ( ( void * ) rsp ) + sizeof ( *rsp ) ) : NULL );
}

References FCP_RSP_RESPONSE_LEN_VALID, NULL, and rsp.

Referenced by fcpcmd_recv_rsp().

fcp_rsp_response_data_len()

static size_t fcp_rsp_response_data_len ( struct fcp_rsp *  rsp )

inlinestatic

Get length of response data portion of FCP response.

Parameters

rsp	FCP response

Return values

response_data_len

Response data length

Definition at line 102 of file fcp.h.

                                                                       {
        return ( ( rsp->flags & FCP_RSP_RESPONSE_LEN_VALID ) ?
                 ntohl ( rsp->response_len ) : 0 );
}

References FCP_RSP_RESPONSE_LEN_VALID, ntohl, and rsp.

Referenced by fcp_rsp_sense_data(), and fcpcmd_recv_rsp().

fcp_rsp_sense_data()

static void* fcp_rsp_sense_data ( struct fcp_rsp *  rsp )

inlinestatic

Get sense data portion of FCP response.

Parameters

rsp	FCP response

Return values

sense_data

Sense data, or NULL if not present

Definition at line 113 of file fcp.h.

                                                                {
        return ( ( rsp->flags & FCP_RSP_SENSE_LEN_VALID ) ?
                 ( ( ( void * ) rsp ) + sizeof ( *rsp ) +
                   fcp_rsp_response_data_len ( rsp ) ) : NULL );
}

References fcp_rsp_response_data_len(), FCP_RSP_SENSE_LEN_VALID, NULL, and rsp.

Referenced by fcpcmd_recv_rsp().

fcp_rsp_sense_data_len()

static size_t fcp_rsp_sense_data_len ( struct fcp_rsp *  rsp )

inlinestatic

Get length of sense data portion of FCP response.

Parameters

rsp	FCP response

Return values

sense_data_len

Sense data length

Definition at line 125 of file fcp.h.

                                                                    {
        return ( ( rsp->flags & FCP_RSP_SENSE_LEN_VALID ) ?
                 ntohl ( rsp->sense_len ) : 0 );
}

References FCP_RSP_SENSE_LEN_VALID, ntohl, and rsp.

Referenced by fcpcmd_recv_rsp().