fc_lport.c File Reference

#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
#include <scsi/fc/fc_gs.h>
#include <scsi/libfc.h>
#include <scsi/fc_encode.h>
#include <linux/scatterlist.h>
#include "fc_libfc.h"

Go to the source code of this file.

Data Structures
struct	fc_bsg_info

Macros
#define	FC_LOCAL_PTP_FID_LO   0x010101
#define	FC_LOCAL_PTP_FID_HI   0x010102
#define	DNS_DELAY   3 /* Discovery delay after RSCN (in seconds)*/

Functions
void	fc_get_host_port_state (struct Scsi_Host *shost)
	EXPORT_SYMBOL (fc_get_host_port_state)
void	fc_get_host_speed (struct Scsi_Host *shost)
	EXPORT_SYMBOL (fc_get_host_speed)
struct fc_host_statistics *	fc_get_host_stats (struct Scsi_Host *shost)
	EXPORT_SYMBOL (fc_get_host_stats)
int	fc_fabric_login (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_fabric_login)
void	__fc_linkup (struct fc_lport *lport)
void	fc_linkup (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_linkup)
void	__fc_linkdown (struct fc_lport *lport)
void	fc_linkdown (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_linkdown)
int	fc_fabric_logoff (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_fabric_logoff)
int	fc_lport_destroy (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_lport_destroy)
int	fc_set_mfs (struct fc_lport *lport, u32 mfs)
	EXPORT_SYMBOL (fc_set_mfs)
void	fc_lport_set_local_id (struct fc_lport *lport, u32 port_id)
	EXPORT_SYMBOL (fc_lport_set_local_id)
int	fc_lport_reset (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_lport_reset)
void	fc_lport_logo_resp (struct fc_seq *sp, struct fc_frame *fp, void *lp_arg)
	EXPORT_SYMBOL (fc_lport_logo_resp)
void	fc_lport_flogi_resp (struct fc_seq *sp, struct fc_frame *fp, void *lp_arg)
	EXPORT_SYMBOL (fc_lport_flogi_resp)
int	fc_lport_config (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_lport_config)
int	fc_lport_init (struct fc_lport *lport)
	EXPORT_SYMBOL (fc_lport_init)
int	fc_lport_bsg_request (struct fc_bsg_job *job)
	EXPORT_SYMBOL (fc_lport_bsg_request)

Variables
struct fc4_prov	fc_lport_els_prov

Macro Definition Documentation

#define DNS_DELAY   3 /* Discovery delay after RSCN (in seconds)*/

Definition at line 108 of file fc_lport.c.

#define FC_LOCAL_PTP_FID_HI   0x010102

Definition at line 106 of file fc_lport.c.

#define FC_LOCAL_PTP_FID_LO   0x010101

Definition at line 105 of file fc_lport.c.

Function Documentation

void __fc_linkdown

(

struct fc_lport *

lport

)

__fc_linkdown() - Handler for transport linkdown events : The lport whose link is down

Locking: must be called with the lp_mutex held

Definition at line 590 of file fc_lport.c.

void __fc_linkup

(

struct fc_lport *

lport

)

__fc_linkup() - Handler for transport linkup events : The lport whose link is up

Locking: must be called with the lp_mutex held

Definition at line 559 of file fc_lport.c.

EXPORT_SYMBOL

(

fc_get_host_port_state

)

EXPORT_SYMBOL

(

fc_get_host_speed

)

EXPORT_SYMBOL

(

fc_get_host_stats

)

EXPORT_SYMBOL

(

fc_fabric_login

)

EXPORT_SYMBOL

(

fc_linkup

)

EXPORT_SYMBOL

(

fc_linkdown

)

EXPORT_SYMBOL

(

fc_fabric_logoff

)

EXPORT_SYMBOL

(

fc_lport_destroy

)

EXPORT_SYMBOL

(

fc_set_mfs

)

EXPORT_SYMBOL

(

fc_lport_set_local_id

)

EXPORT_SYMBOL

(

fc_lport_reset

)

EXPORT_SYMBOL

(

fc_lport_logo_resp

)

EXPORT_SYMBOL

(

fc_lport_flogi_resp

)

EXPORT_SYMBOL

(

fc_lport_config

)

EXPORT_SYMBOL

(

fc_lport_init

)

EXPORT_SYMBOL

(

fc_lport_bsg_request

)

int fc_fabric_login

(

struct fc_lport *

lport

)

fc_fabric_login() - Start the lport state machine : The local port that should log into the fabric

Locking Note: This function should not be called with the lport lock held.

Definition at line 536 of file fc_lport.c.

int fc_fabric_logoff

(

struct fc_lport *

lport

)

fc_fabric_logoff() - Logout of the fabric : The local port to logoff the fabric

Return value: 0 for success, -1 for failure

Definition at line 621 of file fc_lport.c.

void fc_get_host_port_state

(

struct Scsi_Host *

shost

)

fc_get_host_port_state() - Return the port state of the given Scsi_Host : The SCSI host whose port state is to be determined

Definition at line 265 of file fc_lport.c.

void fc_get_host_speed

(

struct Scsi_Host *

shost

)

fc_get_host_speed() - Return the speed of the given Scsi_Host : The SCSI host whose port speed is to be determined

Definition at line 288 of file fc_lport.c.

struct fc_host_statistics* fc_get_host_stats ( struct Scsi_Host *  shost )

read

fc_get_host_stats() - Return the Scsi_Host's statistics : The SCSI host whose statistics are to be returned

Definition at line 300 of file fc_lport.c.

void fc_linkdown

(

struct fc_lport *

lport

)

fc_linkdown() - Handler for transport linkdown events : The local port whose link is down

Definition at line 603 of file fc_lport.c.

void fc_linkup

(

struct fc_lport *

lport

)

fc_linkup() - Handler for transport linkup events : The local port whose link is up

Definition at line 573 of file fc_lport.c.

int fc_lport_bsg_request

(

struct fc_bsg_job *

job

)

fc_lport_bsg_request() - The common entry point for sending FC Passthrough requests : The BSG passthrough job

Definition at line 2085 of file fc_lport.c.

int fc_lport_config

(

struct fc_lport *

lport

)

fc_lport_config() - Configure a fc_lport : The local port to be configured

Definition at line 1843 of file fc_lport.c.

int fc_lport_destroy

(

struct fc_lport *

lport

)

fc_lport_destroy() - Unregister a fc_lport : The local port to unregister

Note: exit routine for fc_lport instance clean-up all the allocated memory and free up other system resources.

Definition at line 647 of file fc_lport.c.

void fc_lport_flogi_resp	(	struct fc_seq *	sp,
		struct fc_frame *	fp,
		void *	lp_arg
	)

fc_lport_flogi_resp() - Handle response to FLOGI request : The sequence that the FLOGI was on : The FLOGI response frame : The lport port that received the FLOGI response

Locking Note: This function will be called without the lport lock held, but it will lock, call an enter* function or fc_lport_error() and then unlock the lport.

Definition at line 1704 of file fc_lport.c.

int fc_lport_init

(

struct fc_lport *

lport

)

fc_lport_init() - Initialize the lport layer for a local port : The local port to initialize the exchange layer for

Definition at line 1862 of file fc_lport.c.

void fc_lport_logo_resp	(	struct fc_seq *	sp,
		struct fc_frame *	fp,
		void *	lp_arg
	)

fc_lport_logo_resp() - Handle response to LOGO request : The sequence that the LOGO was on : The LOGO frame : The lport port that received the LOGO request

Locking Note: This function will be called without the lport lock held, but it will lock, call an enter* function or fc_lport_error() and then unlock the lport.

Definition at line 1625 of file fc_lport.c.

int fc_lport_reset

(

struct fc_lport *

lport

)

fc_lport_reset() - Reset a local port : The local port which should be reset

Locking Note: This functions should not be called with the lport lock held.

Definition at line 994 of file fc_lport.c.

void fc_lport_set_local_id	(	struct fc_lport *	lport,
		u32	port_id
	)

fc_lport_set_port_id() - set the local port Port ID for point-to-multipoint : The local port which will have its Port ID set. : The new port ID.

Called by the lower-level driver when transport sets the local port_id. This is used in VN_port to VN_port mode for FCoE, and causes FLOGI and discovery to be skipped.

Definition at line 777 of file fc_lport.c.

int fc_set_mfs	(	struct fc_lport *	lport,
		u32	mfs
	)

fc_set_mfs() - Set the maximum frame size for a local port : The local port to set the MFS for : The new MFS

Definition at line 669 of file fc_lport.c.

Variable Documentation

struct fc4_prov fc_lport_els_prov

Initial value:

= {
    .prli = fc_lport_els_prli,
    .recv = fc_lport_recv_els_req,
}

Definition at line 941 of file fc_lport.c.