This patch enables LLD to listen to rport events and perform LLD specific operations based on the rport event. This patch also stores sp_features and spp_type in rdata for further reference by LLD.
Signed-off-by: Bhanu Prakash Gollapudi <[email protected]> --- drivers/scsi/libfc/fc_npiv.c | 1 + drivers/scsi/libfc/fc_rport.c | 19 ++++++++++++++++++- include/scsi/libfc.h | 15 +++++++++++++++ 3 files changed, 34 insertions(+), 1 deletions(-) diff --git a/drivers/scsi/libfc/fc_npiv.c b/drivers/scsi/libfc/fc_npiv.c index dd2b43b..076cd5f 100644 --- a/drivers/scsi/libfc/fc_npiv.c +++ b/drivers/scsi/libfc/fc_npiv.c @@ -86,6 +86,7 @@ struct fc_lport *fc_vport_id_lookup(struct fc_lport *n_port, u32 port_id) return lport; } +EXPORT_SYMBOL(fc_vport_id_lookup); /* * When setting the link state of vports during an lport state change, it's diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index a7175ad..2f12f5c 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -145,8 +145,10 @@ static struct fc_rport_priv *fc_rport_create(struct fc_lport *lport, rdata->maxframe_size = FC_MIN_MAX_PAYLOAD; INIT_DELAYED_WORK(&rdata->retry_work, fc_rport_timeout); INIT_WORK(&rdata->event_work, fc_rport_work); - if (port_id != FC_FID_DIR_SERV) + if (port_id != FC_FID_DIR_SERV) { + rdata->lld_event_callback = lport->tt.rport_event_callback; list_add_rcu(&rdata->peers, &lport->disc.rports); + } return rdata; } @@ -300,6 +302,10 @@ static void fc_rport_work(struct work_struct *work) FC_RPORT_DBG(rdata, "callback ev %d\n", event); rport_ops->event_callback(lport, rdata, event); } + if (rdata->lld_event_callback) { + FC_RPORT_DBG(rdata, "lld callback ev %d\n", event); + rdata->lld_event_callback(lport, rdata, event); + } kref_put(&rdata->kref, lport->tt.rport_destroy); break; @@ -313,6 +319,10 @@ static void fc_rport_work(struct work_struct *work) FC_RPORT_DBG(rdata, "callback ev %d\n", event); rport_ops->event_callback(lport, rdata, event); } + if (rdata->lld_event_callback) { + FC_RPORT_DBG(rdata, "lld callback ev %d\n", event); + rdata->lld_event_callback(lport, rdata, event); + } cancel_delayed_work_sync(&rdata->retry_work); /* @@ -878,6 +888,9 @@ static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp, rdata->ids.port_name = get_unaligned_be64(&plp->fl_wwpn); rdata->ids.node_name = get_unaligned_be64(&plp->fl_wwnn); + /* save plogi response sp_features for further reference */ + rdata->sp_features = ntohs(plp->fl_csp.sp_features); + if (lport->point_to_multipoint) fc_rport_login_complete(rdata, fp); csp_seq = ntohs(plp->fl_csp.sp_tot_seq); @@ -983,6 +996,7 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp, resp_code = (pp->spp.spp_flags & FC_SPP_RESP_MASK); FC_RPORT_DBG(rdata, "PRLI spp_flags = 0x%x\n", pp->spp.spp_flags); + rdata->spp_type = pp->spp.spp_type; if (resp_code != FC_SPP_RESP_ACK) { if (resp_code == FC_SPP_RESP_CONF) fc_rport_error(rdata, fp); @@ -996,6 +1010,8 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp, fcp_parm = ntohl(pp->spp.spp_params); if (fcp_parm & FCP_SPPF_RETRY) rdata->flags |= FC_RP_FLAGS_RETRY; + if (fcp_parm & FCP_SPPF_CONF_COMPL) + rdata->flags |= FC_RP_FLAGS_CONF_REQ; rdata->supported_classes = FC_COS_CLASS3; if (fcp_parm & FCP_SPPF_INIT_FCN) @@ -1688,6 +1704,7 @@ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata, */ spp = &pp->spp; while (len >= plen) { + rdata->spp_type = rspp->spp_type; spp->spp_type = rspp->spp_type; spp->spp_type_ext = rspp->spp_type_ext; spp->spp_flags = rspp->spp_flags & FC_SPP_EST_IMG_PAIR; diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index 8d719e8..c1b613a 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -156,6 +156,7 @@ struct fc_rport_libfc_priv { #define FC_RP_FLAGS_REC_SUPPORTED (1 << 0) #define FC_RP_FLAGS_RETRY (1 << 1) #define FC_RP_STARTED (1 << 2) + #define FC_RP_FLAGS_CONF_REQ (1 << 3) unsigned int e_d_tov; unsigned int r_a_tov; }; @@ -203,6 +204,11 @@ struct fc_rport_priv { struct work_struct event_work; u32 supported_classes; struct rcu_head rcu; + u16 sp_features; + u8 spp_type; + void (*lld_event_callback)(struct fc_lport *, + struct fc_rport_priv *, + enum fc_rport_event); }; /** @@ -656,6 +662,15 @@ struct libfc_function_template { void (*rport_destroy)(struct kref *); /* + * Callback routine after the remote port is logged in + * + * STATUS: OPTIONAL + */ + void (*rport_event_callback)(struct fc_lport *, + struct fc_rport_priv *, + enum fc_rport_event); + + /* * Send a fcp cmd from fsp pkt. * Called with the SCSI host lock unlocked and irqs disabled. * -- 1.7.0.6 _______________________________________________ devel mailing list [email protected] https://lists.open-fcoe.org/mailman/listinfo/devel
