ocs_session.c File Reference

#include "ocs.h"
#include "ocs_iscsi.h"
#include "ocs_iscsi_spec.h"
#include "ocs_common.h"
#include "ocs_hal.h"
#include "ocs_iscsi_api.h"
#include "ocs_cxn.h"
#include "ocs_login.h"
#include "ocs_session.h"

Go to the source code of this file.

Detailed Description

OCS iSCSI session managment functions.

Definition in file ocs_session.c.

Macros
#define	CMD_Q_TIMER_MS   30 /* 30 milliseconds */

Functions
static void	ocs_session_check_queued_commands (ocs_session_t *session)
	Checks the queued command to see if any can start. More...
static void	ocs_session_cmd_q_timeout (void *arg)
	This function is called to process commands on a session command queue. More...
int32_t	ocs_session_initialize (ocs_iscsi_t *iscsi)
	Initialize the session management by allocating objects for sessions. More...
void	ocs_session_teardown (ocs_iscsi_t *iscsi)
	Releases the session objects used within the login module. More...
int32_t	ocs_session_cxn_new (ocs_cxn_t *cxn, char *tgt_name, char *ini_name, uint64_t isid, uint16_t tsih, uint16_t cid, uint32_t cmd_sn)
	Find an existing session or create a new one based on the login parameters. More...
int32_t	ocs_session_cxn_del (ocs_cxn_t *cxn)
	Removes a connection from its session. More...
ocs_cxn_t *	ocs_session_cxn_find (ocs_session_t *session, uint16_t cid)
	Locate a connection within a session based on the cid. More...
void	ocs_session_close (ocs_session_t *session, uint8_t reset)
	Closes all connections on a session. More...
void	ocs_session_max_cmd_sn_upd (ocs_session_t *session)
	Updates the max_cmd_sn based on the number IOs available. More...
static int32_t	ocs_session_queue_command (ocs_cxn_t *cxn, ocs_hal_rq_buffer_t *hdr, uint32_t hdr_len, ocs_hal_rq_buffer_t *data, uint32_t data_len, uint8_t code, uint32_t cmd_sn)
	Adds a command to the command queue. More...
int32_t	ocs_session_tgt_unsol_pdu_recv (ocs_cxn_t *cxn, ocs_hal_rq_buffer_t *hdr, uint32_t hdr_len, ocs_hal_rq_buffer_t *data, uint32_t data_len, uint8_t code)
	Function to handle unsolicited PDUs on a target. More...
int32_t	ocs_session_abort_itt (ocs_session_t *session, uint32_t itt)
	Abort a specific IO based on the ITT. More...
void	ocs_session_abort_cmdsn (ocs_session_t *session, uint32_t cmdsn)
	Abort a specific IO based on the cmdSN of the abort request. More...
void	ocs_session_all_abort_cmdsn (ocs_iscsi_t *iscsi, uint32_t cmdsn)
	Abort a specific IO based on the cmdSN of the abort request. More...
static void	ocs_ddump_cmd_q (ocs_textbuf_t *textbuf, ocs_session_q_unsol_t *cmd_q)
	Generate node ddump data. More...
static void	ocs_ddump_session (ocs_textbuf_t *textbuf, ocs_session_t *session)
	Generate node ddump data. More...
void	ocs_ddump_sessions (ocs_textbuf_t *textbuf, ocs_iscsi_t *iscsi)
	Generate node ddump data. More...

Macro Details

#define CMD_Q_TIMER_MS   30 /* 30 milliseconds */

Definition at line 51 of file ocs_session.c.

Function Details

static void ocs_ddump_cmd_q ( ocs_textbuf_t *  textbuf, ocs_session_q_unsol_t *  cmd_q  )

static

Generate node ddump data.

Description

Generates the node ddump data.

Parameters

textbuf	Pointer to text buffer.
cmd_q	This queue contains the out-of-order commands for a session.

Returns

None.

Definition at line 1019 of file ocs_session.c.

static void ocs_ddump_session ( ocs_textbuf_t *  textbuf, ocs_session_t *  session  )

static

Generate node ddump data.

Description

Generates the node ddump data.

Parameters

textbuf	Pointer to text buffer.
session	Pointer to session.

Returns

None.

Definition at line 1042 of file ocs_session.c.

void ocs_ddump_sessions	(	ocs_textbuf_t *	textbuf,
		ocs_iscsi_t *	iscsi
	)

Generate node ddump data.

Description

Generates the node ddump data.

Parameters

textbuf	Pointer to text buffer.
iscsi	Pointer to the iscsi object.

Returns

None.

Definition at line 1095 of file ocs_session.c.

void ocs_session_abort_cmdsn	(	ocs_session_t *	session,
		uint32_t	cmdsn
	)

Abort a specific IO based on the cmdSN of the abort request.

Parameters

session	Pointer to the session object.
cmdsn	Any commands preceding this cmdSN are aborted.

Definition at line 965 of file ocs_session.c.

int32_t ocs_session_abort_itt	(	ocs_session_t *	session,
		uint32_t	itt
	)

Abort a specific IO based on the ITT.

Parameters

session	Pointer to the session object.
itt	Initiator task tag to abort.

Returns

Returns 0 if the IO was found.

Definition at line 932 of file ocs_session.c.

void ocs_session_all_abort_cmdsn	(	ocs_iscsi_t *	iscsi,
		uint32_t	cmdsn
	)

Abort a specific IO based on the cmdSN of the abort request.

Parameters

iscsi	Pointer to the iSCSI object.
cmdsn	Any commands preceding this cmdSN are aborted.

Definition at line 994 of file ocs_session.c.

static void ocs_session_cmd_q_timeout ( void *  arg )

static

This function is called to process commands on a session command queue.

Parameters

arg	Pointer to the session object.

Definition at line 487 of file ocs_session.c.