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[SCSI] libfc: move remote port lookup for ELS requests into fc_rport.c.

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This moves the remote port lookup for incoming ELS requests into
fc_rport.c, in preparation for handing PLOGI and LOGO from
unknown rports.

This changes the arg to rport_recv_req from an rdata to an lport.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Joe Eykholt
2009-08-25 14:03:10 -07:00
committed by James Bottomley
parent 6bd054cbf3
commit 131203a1ef
3 changed files with 44 additions and 66 deletions
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78
drivers/scsi/libfc/fc_rport.c
View File

@@ -912,57 +912,61 @@ static void fc_rport_enter_logo(struct fc_rport_priv *rdata)
* fc_rport_recv_req() - Receive a request from a rport
* @sp: current sequence in the PLOGI exchange
* @fp: response frame
* @rdata_arg: private remote port data
* @lport: Fibre Channel local port
*
* Locking Note: Called without the rport lock held. This
* function will hold the rport lock, call an _enter_*
* function and then unlock the rport.
* Locking Note: Called with the lport lock held.
*/
void fc_rport_recv_req(struct fc_seq *sp, struct fc_frame *fp,
struct fc_rport_priv *rdata)
struct fc_lport *lport)
{
struct fc_lport *lport = rdata->local_port;
struct fc_rport_priv *rdata;
struct fc_frame_header *fh;
struct fc_seq_els_data els_data;
u32 s_id;
u8 op;
mutex_lock(&rdata->rp_mutex);
els_data.fp = NULL;
els_data.explan = ELS_EXPL_NONE;
els_data.reason = ELS_RJT_NONE;
fh = fc_frame_header_get(fp);
s_id = ntoh24(fh->fh_s_id);
if (fh->fh_r_ctl == FC_RCTL_ELS_REQ && fh->fh_type == FC_TYPE_ELS) {
op = fc_frame_payload_op(fp);
switch (op) {
case ELS_PLOGI:
fc_rport_recv_plogi_req(rdata, sp, fp);
break;
case ELS_PRLI:
fc_rport_recv_prli_req(rdata, sp, fp);
break;
case ELS_PRLO:
fc_rport_recv_prlo_req(rdata, sp, fp);
break;
case ELS_LOGO:
fc_rport_recv_logo_req(rdata, sp, fp);
break;
case ELS_RRQ:
els_data.fp = fp;
lport->tt.seq_els_rsp_send(sp, ELS_RRQ, &els_data);
break;
case ELS_REC:
els_data.fp = fp;
lport->tt.seq_els_rsp_send(sp, ELS_REC, &els_data);
break;
default:
els_data.reason = ELS_RJT_UNSUP;
lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &els_data);
break;
}
rdata = lport->tt.rport_lookup(lport, s_id);
if (!rdata) {
els_data.reason = ELS_RJT_UNAB;
lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &els_data);
fc_frame_free(fp);
return;
}
mutex_lock(&rdata->rp_mutex);
op = fc_frame_payload_op(fp);
switch (op) {
case ELS_PLOGI:
fc_rport_recv_plogi_req(rdata, sp, fp);
break;
case ELS_PRLI:
fc_rport_recv_prli_req(rdata, sp, fp);
break;
case ELS_PRLO:
fc_rport_recv_prlo_req(rdata, sp, fp);
break;
case ELS_LOGO:
fc_rport_recv_logo_req(rdata, sp, fp);
break;
case ELS_RRQ:
els_data.fp = fp;
lport->tt.seq_els_rsp_send(sp, ELS_RRQ, &els_data);
break;
case ELS_REC:
els_data.fp = fp;
lport->tt.seq_els_rsp_send(sp, ELS_REC, &els_data);
break;
default:
els_data.reason = ELS_RJT_UNSUP;
lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &els_data);
break;
}
mutex_unlock(&rdata->rp_mutex);