diff options
Diffstat (limited to 'drivers/scsi/ibmvscsi')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.c | 62 |
1 files changed, 58 insertions, 4 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index ed1e728763a..93d1fbe4ee5 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2767,6 +2767,40 @@ static void ibmvfc_retry_tgt_init(struct ibmvfc_target *tgt, ibmvfc_init_tgt(tgt, job_step); } +/* Defined in FC-LS */ +static const struct { + int code; + int retry; + int logged_in; +} prli_rsp [] = { + { 0, 1, 0 }, + { 1, 0, 1 }, + { 2, 1, 0 }, + { 3, 1, 0 }, + { 4, 0, 0 }, + { 5, 0, 0 }, + { 6, 0, 1 }, + { 7, 0, 0 }, + { 8, 1, 0 }, +}; + +/** + * ibmvfc_get_prli_rsp - Find PRLI response index + * @flags: PRLI response flags + * + **/ +static int ibmvfc_get_prli_rsp(u16 flags) +{ + int i; + int code = (flags & 0x0f00) >> 8; + + for (i = 0; i < ARRAY_SIZE(prli_rsp); i++) + if (prli_rsp[i].code == code) + return i; + + return 0; +} + /** * ibmvfc_tgt_prli_done - Completion handler for Process Login * @evt: ibmvfc event struct @@ -2777,15 +2811,36 @@ static void ibmvfc_tgt_prli_done(struct ibmvfc_event *evt) struct ibmvfc_target *tgt = evt->tgt; struct ibmvfc_host *vhost = evt->vhost; struct ibmvfc_process_login *rsp = &evt->xfer_iu->prli; + struct ibmvfc_prli_svc_parms *parms = &rsp->parms; u32 status = rsp->common.status; + int index; vhost->discovery_threads--; ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE); switch (status) { case IBMVFC_MAD_SUCCESS: - tgt_dbg(tgt, "Process Login succeeded\n"); - tgt->need_login = 0; - ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_ADD_RPORT); + tgt_dbg(tgt, "Process Login succeeded: %X %02X %04X\n", + parms->type, parms->flags, parms->service_parms); + + if (parms->type == IBMVFC_SCSI_FCP_TYPE) { + index = ibmvfc_get_prli_rsp(parms->flags); + if (prli_rsp[index].logged_in) { + if (parms->flags & IBMVFC_PRLI_EST_IMG_PAIR) { + tgt->need_login = 0; + tgt->ids.roles = 0; + if (parms->service_parms & IBMVFC_PRLI_TARGET_FUNC) + tgt->ids.roles |= FC_PORT_ROLE_FCP_TARGET; + if (parms->service_parms & IBMVFC_PRLI_INITIATOR_FUNC) + tgt->ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_ADD_RPORT); + } else + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); + } else if (prli_rsp[index].retry) + ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli); + else + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); + } else + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); break; case IBMVFC_MAD_DRIVER_FAILED: break; @@ -2874,7 +2929,6 @@ static void ibmvfc_tgt_plogi_done(struct ibmvfc_event *evt) tgt->ids.node_name = wwn_to_u64(rsp->service_parms.node_name); tgt->ids.port_name = wwn_to_u64(rsp->service_parms.port_name); tgt->ids.port_id = tgt->scsi_id; - tgt->ids.roles = FC_PORT_ROLE_FCP_TARGET; memcpy(&tgt->service_parms, &rsp->service_parms, sizeof(tgt->service_parms)); memcpy(&tgt->service_parms_change, &rsp->service_parms_change, |