#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/export.h>
#include <linux/delay.h>
#include <asm/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include "lpfc_version.h"
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"

Data Structures
struct	scsi_dif_tuple

Macros
#define	LPFC_RESET_WAIT 2

#define	LPFC_ABORT_WAIT 2

Functions
int	lpfc_change_queue_depth (struct scsi_device *sdev, int qdepth, int reason)

void	lpfc_rampdown_queue_depth (struct lpfc_hba *phba)

void	lpfc_ramp_down_queue_handler (struct lpfc_hba *phba)

void	lpfc_ramp_up_queue_handler (struct lpfc_hba *phba)

void	lpfc_scsi_dev_block (struct lpfc_hba *phba)

void	lpfc_sli4_vport_delete_fcp_xri_aborted (struct lpfc_vport *vport)

void	lpfc_sli4_fcp_xri_aborted (struct lpfc_hba phba, struct sli4_wcqe_xri_aborted axri)

int	lpfc_sli4_post_scsi_sgl_list (struct lpfc_hba phba, struct list_head post_sblist, int sb_count)

int	lpfc_sli4_repost_scsi_sgl_list (struct lpfc_hba *phba)

int	lpfc_scsi_api_table_setup (struct lpfc_hba *phba, uint8_t dev_grp)

const char *	lpfc_info (struct Scsi_Host *host)

void	lpfc_poll_start_timer (struct lpfc_hba *phba)

void	lpfc_poll_timeout (unsigned long ptr)

Variables
int	_dump_buf_done

struct scsi_host_template	lpfc_template

struct scsi_host_template	lpfc_vport_template

Macro Definition Documentation

#define LPFC_ABORT_WAIT 2

Definition at line 49 of file lpfc_scsi.c.

#define LPFC_RESET_WAIT 2

Definition at line 48 of file lpfc_scsi.c.

Function Documentation

int lpfc_change_queue_depth	(	struct scsi_device *	sdev,
		int	qdepth,
		int	reason
	)

lpfc_change_queue_depth - Alter scsi device queue depth : Pointer the scsi device on which to change the queue depth. : New queue depth to set the sdev to. : The reason for the queue depth change.

This function is called by the midlayer and the LLD to alter the queue depth for a scsi device. This function sets the queue depth to the new value and sends an event out to log the queue depth change.

Definition at line 271 of file lpfc_scsi.c.

const char* lpfc_info ( struct Scsi_Host * host )

lpfc_info - Info entry point of scsi_host_template data structure : The scsi host for which this call is being executed.

This routine provides module information about hba.

Reutrn code: Pointer to char - Success.

Definition at line 4162 of file lpfc_scsi.c.

void lpfc_poll_start_timer ( struct lpfc_hba * phba )

lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA : The Hba for which this call is being executed.

This routine starts the fcp_poll_timer of .

Definition at line 4226 of file lpfc_scsi.c.

void lpfc_poll_timeout ( unsigned long ptr )

lpfc_poll_timeout - Restart polling timer : Map to lpfc_hba data structure pointer.

This routine restarts fcp_poll timer, when FCP ring polling is enable and FCP Ring interrupt is disable.

Definition at line 4239 of file lpfc_scsi.c.

void lpfc_ramp_down_queue_handler ( struct lpfc_hba * phba )

lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler : The Hba for which this call is being executed.

This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker thread.This routine reduces queue depth for all scsi device on each vport associated with .

Definition at line 384 of file lpfc_scsi.c.

void lpfc_ramp_up_queue_handler ( struct lpfc_hba * phba )

lpfc_ramp_up_queue_handler - WORKER_RAMP_UP_QUEUE event handler : The Hba for which this call is being executed.

This routine is called to process WORKER_RAMP_UP_QUEUE event for worker thread.This routine increases queue depth for all scsi device on each vport associated with by 1. This routine also sets num_rsrc_err and num_cmd_success to zero.

Definition at line 436 of file lpfc_scsi.c.

void lpfc_rampdown_queue_depth ( struct lpfc_hba * phba )

lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread : The Hba for which this call is being executed.

This routine is called when there is resource error in driver or firmware. This routine posts WORKER_RAMP_DOWN_QUEUE event for . This routine posts at most 1 event each second. This routine wakes up worker thread of to process WORKER_RAM_DOWN_EVENT event.

This routine should be called with no lock held.

Definition at line 302 of file lpfc_scsi.c.

int lpfc_scsi_api_table_setup	(	struct lpfc_hba *	phba,
		uint8_t	dev_grp
	)

lpfc_scsi_api_table_setup - Set up scsi api function jump table : The hba struct for which this call is being executed. : The HBA PCI-Device group number.

This routine sets up the SCSI interface API function jump table in struct. Returns: 0 - success, -ENODEV - failure.

Definition at line 4098 of file lpfc_scsi.c.

void lpfc_scsi_dev_block ( struct lpfc_hba * phba )

lpfc_scsi_dev_block - set all scsi hosts to block state : Pointer to HBA context object.

This function walks vport list and set each SCSI host to block state by invoking fc_remote_port_delete() routine. This function is invoked with EEH when device's PCI slot has been permanently disabled.

Definition at line 470 of file lpfc_scsi.c.

void lpfc_sli4_fcp_xri_aborted	(	struct lpfc_hba *	phba,
		struct sli4_wcqe_xri_aborted *	axri
	)

lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort : pointer to lpfc hba data structure. : pointer to the fcp xri abort wcqe structure.

This routine is invoked by the worker thread to process a SLI4 fast-path FCP aborted xri.

Definition at line 662 of file lpfc_scsi.c.

int lpfc_sli4_post_scsi_sgl_list	(	struct lpfc_hba *	phba,
		struct list_head *	post_sblist,
		int	sb_count
	)

lpfc_sli4_post_scsi_sgl_list - Psot blocks of scsi buffer sgls from a list : pointer to lpfc hba data structure. : pointer to the scsi buffer list.

This routine walks a list of scsi buffers that was passed in. It attempts to construct blocks of scsi buffer sgls which contains contiguous xris and uses the non-embedded SGL block post mailbox commands to post to the port. For single SCSI buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post mailbox command for posting. The passed in must be local list, thus no lock is needed when manipulate the list.

Returns: 0 = failure, non-zero number of successfully posted buffers.

Definition at line 738 of file lpfc_scsi.c.

int lpfc_sli4_repost_scsi_sgl_list ( struct lpfc_hba * phba )

lpfc_sli4_repost_scsi_sgl_list - Repsot all the allocated scsi buffer sgls : pointer to lpfc hba data structure.

This routine walks the list of scsi buffers that have been allocated and repost them to the port by using SGL block post. This is needed after a pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine is responsible for moving all scsi buffers on the lpfc_abts_scsi_sgl_list to the lpfc_scsi_buf_list. If the repost fails, reject all scsi buffers.

Returns: 0 = success, non-zero failure.

Definition at line 862 of file lpfc_scsi.c.

void lpfc_sli4_vport_delete_fcp_xri_aborted ( struct lpfc_vport * vport )

lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport : pointer to lpfc vport data structure.

This routine is invoked by the vport cleanup for deletions and the cleanup for an ndlp on removal.

Definition at line 635 of file lpfc_scsi.c.

Variable Documentation

int _dump_buf_done

Definition at line 51 of file lpfc_scsi.c.

struct scsi_host_template lpfc_template

Initial value:

= {
    .module         = THIS_MODULE,
    .name           = LPFC_DRIVER_NAME,
    .info           = lpfc_info,
    .queuecommand       = lpfc_queuecommand,
    .eh_abort_handler   = lpfc_abort_handler,
    .eh_device_reset_handler = lpfc_device_reset_handler,
    .eh_target_reset_handler = lpfc_target_reset_handler,
    .eh_bus_reset_handler   = lpfc_bus_reset_handler,
    .eh_host_reset_handler  = lpfc_host_reset_handler,
    .slave_alloc        = lpfc_slave_alloc,
    .slave_configure    = lpfc_slave_configure,
    .slave_destroy      = lpfc_slave_destroy,
    .scan_finished      = lpfc_scan_finished,
    .this_id        = -1,
    .sg_tablesize       = LPFC_DEFAULT_SG_SEG_CNT,
    .cmd_per_lun        = LPFC_CMD_PER_LUN,
    .use_clustering     = ENABLE_CLUSTERING,
    .shost_attrs        = lpfc_hba_attrs,
    .max_sectors        = 0xFFFF,
    .vendor_id      = LPFC_NL_VENDOR_ID,
    .change_queue_depth = lpfc_change_queue_depth,
}

Definition at line 5114 of file lpfc_scsi.c.

struct scsi_host_template lpfc_vport_template

Initial value:

= {
    .module         = THIS_MODULE,
    .name           = LPFC_DRIVER_NAME,
    .info           = lpfc_info,
    .queuecommand       = lpfc_queuecommand,
    .eh_abort_handler   = lpfc_abort_handler,
    .eh_device_reset_handler = lpfc_device_reset_handler,
    .eh_target_reset_handler = lpfc_target_reset_handler,
    .eh_bus_reset_handler   = lpfc_bus_reset_handler,
    .slave_alloc        = lpfc_slave_alloc,
    .slave_configure    = lpfc_slave_configure,
    .slave_destroy      = lpfc_slave_destroy,
    .scan_finished      = lpfc_scan_finished,
    .this_id        = -1,
    .sg_tablesize       = LPFC_DEFAULT_SG_SEG_CNT,
    .cmd_per_lun        = LPFC_CMD_PER_LUN,
    .use_clustering     = ENABLE_CLUSTERING,
    .shost_attrs        = lpfc_vport_attrs,
    .max_sectors        = 0xFFFF,
    .change_queue_depth = lpfc_change_queue_depth,
}

Definition at line 5138 of file lpfc_scsi.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation