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[SCSI] libfc: Cleanup libfc_function_template comments
Made the comments more like the comments for struct scsi_host_template. Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Robert Love
James Bottomley
parent
efaf5c085d
commit
0ae4d4ae47
@ -336,31 +336,17 @@ struct fc_exch {
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struct libfc_function_template {
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/**
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* Mandatory Fields
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*
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* These handlers must be implemented by the LLD.
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*/
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/*
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* Interface to send a FC frame
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*
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* STATUS: REQUIRED
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*/
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int (*frame_send)(struct fc_lport *lp, struct fc_frame *fp);
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/**
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* Optional Fields
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*
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* The LLD may choose to implement any of the following handlers.
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* If LLD doesn't specify hander and leaves its pointer NULL then
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* the default libfc function will be used for that handler.
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*/
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/**
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* ELS/CT interfaces
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*/
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/*
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* elsct_send - sends ELS/CT frame
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* Interface to send ELS/CT frames
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*
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* STATUS: OPTIONAL
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*/
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struct fc_seq *(*elsct_send)(struct fc_lport *lport,
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struct fc_rport *rport,
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@ -370,9 +356,6 @@ struct libfc_function_template {
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struct fc_frame *fp,
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void *arg),
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void *arg, u32 timer_msec);
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/**
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* Exhance Manager interfaces
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*/
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/*
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* Send the FC frame payload using a new exchange and sequence.
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@ -404,6 +387,8 @@ struct libfc_function_template {
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* timer_msec argument is specified. The timer is canceled when
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* it fires or when the exchange is done. The exchange timeout handler
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* is registered by EM layer.
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*
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* STATUS: OPTIONAL
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*/
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struct fc_seq *(*exch_seq_send)(struct fc_lport *lp,
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struct fc_frame *fp,
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@ -415,14 +400,18 @@ struct libfc_function_template {
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void *arg, unsigned int timer_msec);
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/*
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* send a frame using existing sequence and exchange.
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* Send a frame using an existing sequence and exchange.
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*
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* STATUS: OPTIONAL
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*/
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int (*seq_send)(struct fc_lport *lp, struct fc_seq *sp,
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struct fc_frame *fp);
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/*
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* Send ELS response using mainly infomation
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* in exchange and sequence in EM layer.
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* Send an ELS response using infomation from a previous
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* exchange and sequence.
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*
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* STATUS: OPTIONAL
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*/
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void (*seq_els_rsp_send)(struct fc_seq *sp, enum fc_els_cmd els_cmd,
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struct fc_seq_els_data *els_data);
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@ -434,6 +423,8 @@ struct libfc_function_template {
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* A timer_msec can be specified for abort timeout, if non-zero
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* timer_msec value is specified then exchange resp handler
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* will be called with timeout error if no response to abort.
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*
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* STATUS: OPTIONAL
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*/
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int (*seq_exch_abort)(const struct fc_seq *req_sp,
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unsigned int timer_msec);
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@ -441,6 +432,8 @@ struct libfc_function_template {
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/*
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* Indicate that an exchange/sequence tuple is complete and the memory
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* allocated for the related objects may be freed.
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*
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* STATUS: OPTIONAL
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*/
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void (*exch_done)(struct fc_seq *sp);
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@ -448,6 +441,8 @@ struct libfc_function_template {
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* Assigns a EM and a free XID for an new exchange and then
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* allocates a new exchange and sequence pair.
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* The fp can be used to determine free XID.
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*
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* STATUS: OPTIONAL
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*/
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struct fc_exch *(*exch_get)(struct fc_lport *lp, struct fc_frame *fp);
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@ -455,12 +450,16 @@ struct libfc_function_template {
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* Release previously assigned XID by exch_get API.
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* The LLD may implement this if XID is assigned by LLD
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* in exch_get().
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*
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* STATUS: OPTIONAL
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*/
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void (*exch_put)(struct fc_lport *lp, struct fc_exch_mgr *mp,
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u16 ex_id);
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/*
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* Start a new sequence on the same exchange/sequence tuple.
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*
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* STATUS: OPTIONAL
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*/
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struct fc_seq *(*seq_start_next)(struct fc_seq *sp);
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@ -468,26 +467,33 @@ struct libfc_function_template {
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* Reset an exchange manager, completing all sequences and exchanges.
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* If s_id is non-zero, reset only exchanges originating from that FID.
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* If d_id is non-zero, reset only exchanges sending to that FID.
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*
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* STATUS: OPTIONAL
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*/
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void (*exch_mgr_reset)(struct fc_lport *,
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u32 s_id, u32 d_id);
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void (*rport_flush_queue)(void);
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/**
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* Local Port interfaces
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/*
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* Flush the rport work queue. Generally used before shutdown.
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*
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* STATUS: OPTIONAL
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*/
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void (*rport_flush_queue)(void);
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/*
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* Receive a frame to a local port.
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* Receive a frame for a local port.
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*
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* STATUS: OPTIONAL
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*/
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void (*lport_recv)(struct fc_lport *lp, struct fc_seq *sp,
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struct fc_frame *fp);
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int (*lport_reset)(struct fc_lport *);
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/**
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* Remote Port interfaces
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/*
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* Reset the local port.
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*
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* STATUS: OPTIONAL
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*/
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int (*lport_reset)(struct fc_lport *);
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/*
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* Create a remote port
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@ -502,26 +508,33 @@ struct libfc_function_template {
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* - PLOGI
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* - PRLI
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* - RTV
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*
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* STATUS: OPTIONAL
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*/
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int (*rport_login)(struct fc_rport *rport);
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/*
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* Logoff, and remove the rport from the transport if
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* it had been added. This will send a LOGO to the target.
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*
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* STATUS: OPTIONAL
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*/
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int (*rport_logoff)(struct fc_rport *rport);
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/*
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* Recieve a request from a remote port.
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*
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* STATUS: OPTIONAL
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*/
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void (*rport_recv_req)(struct fc_seq *, struct fc_frame *,
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struct fc_rport *);
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struct fc_rport *(*rport_lookup)(const struct fc_lport *, u32);
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/**
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* FCP interfaces
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/*
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* lookup an rport by it's port ID.
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*
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* STATUS: OPTIONAL
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*/
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struct fc_rport *(*rport_lookup)(const struct fc_lport *, u32);
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/*
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* Send a fcp cmd from fsp pkt.
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@ -529,30 +542,38 @@ struct libfc_function_template {
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*
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* The resp handler is called when FCP_RSP received.
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*
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* STATUS: OPTIONAL
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*/
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int (*fcp_cmd_send)(struct fc_lport *lp, struct fc_fcp_pkt *fsp,
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void (*resp)(struct fc_seq *, struct fc_frame *fp,
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void *arg));
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/*
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* Used at least durring linkdown and reset
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* Cleanup the FCP layer, used durring link down and reset
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*
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* STATUS: OPTIONAL
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*/
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void (*fcp_cleanup)(struct fc_lport *lp);
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/*
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* Abort all I/O on a local port
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*
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* STATUS: OPTIONAL
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*/
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void (*fcp_abort_io)(struct fc_lport *lp);
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/**
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* Discovery interfaces
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/*
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* Receive a request for the discovery layer.
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*
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* STATUS: OPTIONAL
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*/
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void (*disc_recv_req)(struct fc_seq *,
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struct fc_frame *, struct fc_lport *);
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/*
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* Start discovery for a local port.
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*
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* STATUS: OPTIONAL
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*/
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void (*disc_start)(void (*disc_callback)(struct fc_lport *,
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enum fc_disc_event),
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@ -561,6 +582,8 @@ struct libfc_function_template {
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/*
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* Stop discovery for a given lport. This will remove
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* all discovered rports
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*
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* STATUS: OPTIONAL
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*/
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void (*disc_stop) (struct fc_lport *);
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@ -568,6 +591,8 @@ struct libfc_function_template {
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* Stop discovery for a given lport. This will block
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* until all discovered rports are deleted from the
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* FC transport class
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*
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* STATUS: OPTIONAL
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*/
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void (*disc_stop_final) (struct fc_lport *);
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};
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