diff options
Diffstat (limited to 'drivers/scsi/libfc/fc_rport.c')
| -rw-r--r-- | drivers/scsi/libfc/fc_rport.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index c33e2585108..03ea6748e7e 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -1012,6 +1012,50 @@ static void fc_rport_enter_adisc(struct fc_rport_priv *rdata) } /** + * fc_rport_recv_adisc_req() - Handle incoming Address Discovery (ADISC) Request + * @rdata: remote port private + * @sp: current sequence in the ADISC exchange + * @in_fp: ADISC request frame + * + * Locking Note: Called with the lport and rport locks held. + */ +static void fc_rport_recv_adisc_req(struct fc_rport_priv *rdata, + struct fc_seq *sp, struct fc_frame *in_fp) +{ + struct fc_lport *lport = rdata->local_port; + struct fc_frame *fp; + struct fc_exch *ep = fc_seq_exch(sp); + struct fc_els_adisc *adisc; + struct fc_seq_els_data rjt_data; + u32 f_ctl; + + FC_RPORT_DBG(rdata, "Received ADISC request\n"); + + adisc = fc_frame_payload_get(in_fp, sizeof(*adisc)); + if (!adisc) { + rjt_data.fp = NULL; + rjt_data.reason = ELS_RJT_PROT; + rjt_data.explan = ELS_EXPL_INV_LEN; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + goto drop; + } + + fp = fc_frame_alloc(lport, sizeof(*adisc)); + if (!fp) + goto drop; + fc_adisc_fill(lport, fp); + adisc = fc_frame_payload_get(fp, sizeof(*adisc)); + adisc->adisc_cmd = ELS_LS_ACC; + sp = lport->tt.seq_start_next(sp); + f_ctl = FC_FC_EX_CTX | FC_FC_LAST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT; + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REP, ep->did, ep->sid, + FC_TYPE_ELS, f_ctl, 0); + lport->tt.seq_send(lport, sp, fp); +drop: + fc_frame_free(in_fp); +} + +/** * fc_rport_recv_els_req() - handle a validated ELS request. * @lport: Fibre Channel local port * @sp: current sequence in the PLOGI exchange @@ -1062,6 +1106,9 @@ static void fc_rport_recv_els_req(struct fc_lport *lport, case ELS_PRLO: fc_rport_recv_prlo_req(rdata, sp, fp); break; + case ELS_ADISC: + fc_rport_recv_adisc_req(rdata, sp, fp); + break; case ELS_RRQ: els_data.fp = fp; lport->tt.seq_els_rsp_send(sp, ELS_RRQ, &els_data); @@ -1111,6 +1158,7 @@ void fc_rport_recv_req(struct fc_seq *sp, struct fc_frame *fp, break; case ELS_PRLI: case ELS_PRLO: + case ELS_ADISC: case ELS_RRQ: case ELS_REC: fc_rport_recv_els_req(lport, sp, fp); |