Functions
static int32_t	ocs_unsol_abort_cb (ocs_hal_io_t hio, ocs_remote_node_t rnode, uint32_t len, int32_t status, uint32_t ext, void *arg)
	Callback function when aborting a port owned XRI exchanges. More...

static void	ocs_port_owned_abort (ocs_t ocs, ocs_hal_io_t hio)
	Abort either a RQ Pair auto XFER RDY XRI. More...

int32_t	ocs_unsolicited_cb (void arg, ocs_hal_sequence_t seq)
	Handle unsolicited FC frames. More...

static int32_t	ocs_unsol_process (ocs_t ocs, ocs_hal_sequence_t seq)
	Handle unsolicited FC frames. More...

int32_t	ocs_process_node_pending (ocs_node_t *node)
	Process pending frames queued to the given node. More...

int32_t	ocs_domain_process_pending (ocs_domain_t *domain)
	Process pending frames queued to the given domain. More...

static int32_t	ocs_purge_pending (ocs_t ocs, ocs_list_t pend_list, ocs_lock_t *list_lock)
	Purge given pending list. More...

int32_t	ocs_node_purge_pending (ocs_node_t *node)
	Purge node's pending (queued) frames. More...

int32_t	ocs_domain_purge_pending (ocs_domain_t *domain)
	Purge xport's pending (queued) frames. More...

static uint8_t	ocs_node_frames_held (void *arg)
	Check if node's pending frames are held. More...

static uint8_t	ocs_domain_frames_held (void *arg)
	Check if domain's pending frames are held. More...

void	ocs_domain_hold_frames (ocs_domain_t *domain)
	Globally (at xport level) hold unsolicited frames. More...

void	ocs_domain_accept_frames (ocs_domain_t *domain)
	Clear hold on unsolicited frames. More...

static int32_t	ocs_domain_dispatch_frame (void arg, ocs_hal_sequence_t seq)
	Dispatch unsolicited FC frame. More...

static int32_t	ocs_node_dispatch_frame (void arg, ocs_hal_sequence_t seq)
	Dispatch a frame. More...

static void	ocs_dispatch_unsolicited_tmf (ocs_io_t io, uint8_t task_management_flags, ocs_node_t node, uint32_t lun)
	Dispatch unsolicited FCP frames (RQ Pair). More...

static int32_t	ocs_dispatch_fcp_cmd (ocs_node_t node, ocs_hal_sequence_t seq)
	Dispatch unsolicited FCP_CMND frame. More...

static int32_t	ocs_dispatch_tow_fcp_cmd (ocs_node_t node, ocs_hal_sequence_t seq)
	Dispatch unsolicited FCP_CMND frame. More...

static int32_t	ocs_dispatch_fcp_data (ocs_node_t node, ocs_hal_sequence_t seq)
	Dispatch FCP data frames for TOW. More...

static int32_t	ocs_fc_tmf_rejected_cb (ocs_io_t io, ocs_scsi_io_status_e scsi_status, uint32_t flags, void arg)
	Handle the callback for the TMF FUNCTION_REJECTED response. More...

static uint32_t	ocs_fc_decode_lun (uint8_t *lu)
	Decode a LU Number according to SAM. More...

Function Details

static int32_t ocs_dispatch_fcp_cmd	(	ocs_node_t *	node,
		ocs_hal_sequence_t *	seq
	)

static

Dispatch unsolicited FCP_CMND frame.

Description

Dispatch unsolicited FCP_CMND frame. RQ Pair mode - always used for RQ Pair mode since first burst is not supported.

Parameters

node	Node that originated the frame.
seq	Header/payload sequence buffers.

Returns: Returns 0 if frame processed and RX buffers cleaned up appropriately, -1 if frame not handled and RX buffers need to be returned.

Definition at line 894 of file ocs_unsol.c.

static int32_t ocs_dispatch_fcp_data	(	ocs_node_t *	node,
		ocs_hal_sequence_t *	seq
	)

static

Dispatch FCP data frames for TOW.

Description

Dispatch unsolicited FCP data frames containing sequence initiative transferred (SIT=1).

Parameters

node	Node that originated the frame.
seq	Header/payload sequence buffers.

Returns: Returns 0 if frame processed and RX buffers cleaned up appropriately, -1 if frame not handled.

Definition at line 1082 of file ocs_unsol.c.

static int32_t ocs_dispatch_tow_fcp_cmd	(	ocs_node_t *	node,
		ocs_hal_sequence_t *	seq
	)

static

Dispatch unsolicited FCP_CMND frame.

Description

Dispatch unsolicited FCP_CMND frame that is assisted with TOW.

Parameters

node	Node that originated the frame.
seq	Header/payload sequence buffers.

Returns: Returns 0 if frame processed and RX buffers cleaned up appropriately, -1 if frame not handled and RX buffers need to be returned.

Definition at line 991 of file ocs_unsol.c.

static void ocs_dispatch_unsolicited_tmf	(	ocs_io_t *	io,
		uint8_t	task_management_flags,
		ocs_node_t *	node,
		uint32_t	lun
	)

static

Dispatch unsolicited FCP frames (RQ Pair).

Description

Dispatch unsolicited FCP frames (called from the device node state machine).

Parameters

io	Pointer to the IO context.
task_management_flags	Task management flags from the FCP_CMND frame.
node	Node that originated the frame.
lun	32-bit LUN from FCP_CMND frame.

Returns: Returns None.

Definition at line 770 of file ocs_unsol.c.

void ocs_domain_accept_frames ( ocs_domain_t * domain )

Clear hold on unsolicited frames.

Description

This function clears the hold on processing unsolicited FC frames queued to the domain pending list.

Parameters

domain Pointer to domain object.

Returns: Returns None.

Definition at line 546 of file ocs_unsol.c.

static __inline int32_t ocs_domain_dispatch_frame	(	void *	arg,
		ocs_hal_sequence_t *	seq
	)

static

Dispatch unsolicited FC frame.

Description

This function processes an unsolicited FC frame queued at the domain level.

Parameters

arg	Pointer to ocs object.
seq	Header/payload sequence buffers.

Returns: Returns 0 if frame processed and RX buffers cleaned up appropriately, -1 if frame not handled.

Definition at line 578 of file ocs_unsol.c.

static uint8_t ocs_domain_frames_held ( void * arg )

static

Check if domain's pending frames are held.

Parameters

arg	Domain for which the pending frame hold condition is checked.

Returns: Returns 1 if domain is holding pending frames, or 0 if not.

Definition at line 492 of file ocs_unsol.c.

void ocs_domain_hold_frames ( ocs_domain_t * domain )

Globally (at xport level) hold unsolicited frames.

Description

This function places a hold on processing unsolicited FC frames queued to the xport pending list.

Parameters

domain Pointer to domain object.

Returns: Returns None.

Definition at line 518 of file ocs_unsol.c.

int32_t ocs_domain_process_pending ( ocs_domain_t * domain )

Process pending frames queued to the given domain.

Description

Frames that are queued for the domain are dispatched and returned to the RQ.

Parameters

domain Domain of the queued frames that are to be dispatched.

Returns: Returns 0 on success, or a negative error value on failure.

Definition at line 336 of file ocs_unsol.c.

int32_t ocs_domain_purge_pending ( ocs_domain_t * domain )

Purge xport's pending (queued) frames.

Description

Frames that are queued for the xport are discarded and returned to the RQ.

Parameters

domain Pointer to domain object.

Returns: Returns 0 on success; or a negative error value on failure.

Definition at line 450 of file ocs_unsol.c.

static uint32_t ocs_fc_decode_lun ( uint8_t * lu )

static

Decode a LU Number according to SAM.

Description

Decode a LU Number according to SAM. Note: Only handles a single-level LU.

Parameters

lu	Pointer to the LU data.

Returns: Returns the LU Number; or the maximum integer on error.

Definition at line 1188 of file ocs_unsol.c.

static int32_t ocs_fc_tmf_rejected_cb	(	ocs_io_t *	io,
		ocs_scsi_io_status_e	scsi_status,
		uint32_t	flags,
		void *	arg
	)

static

Handle the callback for the TMF FUNCTION_REJECTED response.

Description

Handle the callback of a send TMF FUNCTION_REJECTED response request.

Parameters

io	Pointer to the IO context.
scsi_status	Status of the response.
flags	Callback flags.
arg	Callback argument.

Returns: Returns 0 on success, or a negative error value on failure.

Definition at line 1166 of file ocs_unsol.c.

static int32_t ocs_node_dispatch_frame	(	void *	arg,
		ocs_hal_sequence_t *	seq
	)

static

Dispatch a frame.

Description

A frame is dispatched from the node to the handler.

Parameters

arg	Node that originated the frame.
seq	Header/payload sequence buffers.

Returns: Returns 0 if frame processed and RX buffers cleaned up appropriately, -1 if frame not handled.

Definition at line 681 of file ocs_unsol.c.

static uint8_t ocs_node_frames_held ( void * arg )

static

Check if node's pending frames are held.

Parameters

arg	Node for which the pending frame hold condition is checked.

Returns: Returns 1 if node is holding pending frames, or 0 if not.

Definition at line 474 of file ocs_unsol.c.

int32_t ocs_node_purge_pending ( ocs_node_t * node )

Purge node's pending (queued) frames.

Description

Frames that are queued for the node are discarded and returned to the RQ.

Parameters

node	Node of the queued frames that are to be discarded.

Returns: Returns 0 on success, or a negative error value on failure.

Definition at line 431 of file ocs_unsol.c.

static void ocs_port_owned_abort	(	ocs_t *	ocs,
		ocs_hal_io_t *	hio
	)

static

Abort either a RQ Pair auto XFER RDY XRI.

Returns: Returns None.

Definition at line 136 of file ocs_unsol.c.

int32_t ocs_process_node_pending ( ocs_node_t * node )

Process pending frames queued to the given node.

Description

Frames that are queued for the node are dispatched and returned to the RQ.

Parameters

node	Node of the queued frames that are to be dispatched.

Returns: Returns 0 on success, or a negative error value on failure.

Definition at line 278 of file ocs_unsol.c.

static int32_t ocs_purge_pending	(	ocs_t *	ocs,
		ocs_list_t *	pend_list,
		ocs_lock_t *	list_lock
	)

static

Purge given pending list.

Description

Frames that are queued on the given pending list are discarded and returned to the RQ.

Parameters

ocs	Pointer to ocs object.
pend_list	Pending list to be purged.
list_lock	Lock that protects pending list.

Returns: Returns 0 on success, or a negative error value on failure.

Definition at line 397 of file ocs_unsol.c.

static int32_t ocs_unsol_abort_cb	(	ocs_hal_io_t *	hio,
		ocs_remote_node_t *	rnode,
		uint32_t	len,
		int32_t	status,
		uint32_t	ext,
		void *	arg
	)

static

Callback function when aborting a port owned XRI exchanges.

Returns: Returns 0.

Definition at line 119 of file ocs_unsol.c.

static int32_t ocs_unsol_process	(	ocs_t *	ocs,
		ocs_hal_sequence_t *	seq
	)

static

Handle unsolicited FC frames.

Description

This function is called either from ocs_unsolicited_cb() or ocs_unsol_rq_thread().

Parameters

ocs	Pointer to the ocs structure.
seq	Header/payload sequence buffers.

Returns: Returns 0 on success, or a negative error value on failure.

Definition at line 203 of file ocs_unsol.c.

int32_t ocs_unsolicited_cb	(	void *	arg,
		ocs_hal_sequence_t *	seq
	)

Handle unsolicited FC frames.

Description

This function is called from the HAL with unsolicited FC frames (FCP, ELS, BLS, etc.).

Parameters

arg	Application-specified callback data.
seq	Header/payload sequence buffers.

Returns: Returns 0 on success; or a negative error value on failure.

Definition at line 164 of file ocs_unsol.c.

Functions

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