forked from Minki/linux
scsi: qla2xxx: Remove ASYNC GIDPN switch command
Using GPNFT/GNNFT command will be able to cover switch database with less number of scans. This patch removes Get NportID with provided WWPN/GIDPN switch command. By making this change, in large fabric with lots of remote port or NPIV ports with noisy SAN, the number of GIDPN commands issued by a port when it detects large number of remote ports going away or coming back, can overwhelmn the switch and it can becomde unresponsive. In a case where the fabric has not change, GIDPN is not required. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Himanshu Madhani
Martin K. Petersen
parent
0aca77843e
commit
d4f7a16aec
@ -2281,7 +2281,6 @@ struct ct_sns_desc {
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enum discovery_state {
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DSC_DELETED,
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DSC_GNN_ID,
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DSC_GID_PN,
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DSC_GNL,
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DSC_LOGIN_PEND,
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DSC_LOGIN_FAILED,
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@ -2306,7 +2305,6 @@ enum login_state { /* FW control Target side */
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enum fcport_mgt_event {
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FCME_RELOGIN = 1,
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FCME_RSCN,
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FCME_GIDPN_DONE,
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FCME_PLOGI_DONE, /* Initiator side sent LLIOCB */
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FCME_PRLI_DONE,
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FCME_GNL_DONE,
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@ -3219,7 +3217,6 @@ enum qla_work_type {
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QLA_EVT_ASYNC_ADISC_DONE,
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QLA_EVT_UEVENT,
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QLA_EVT_AENFX,
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QLA_EVT_GIDPN,
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QLA_EVT_GPNID,
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QLA_EVT_UNMAP,
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QLA_EVT_NEW_SESS,
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@ -119,6 +119,8 @@ extern int qla2x00_post_async_prlo_done_work(struct scsi_qla_host *,
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int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport);
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void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport);
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int qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *);
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void qla_rscn_replay(fc_port_t *fcport);
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/*
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* Global Data in qla_os.c source file.
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*/
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@ -645,9 +647,6 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *, size_t);
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extern int qla2x00_chk_ms_status(scsi_qla_host_t *, ms_iocb_entry_t *,
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struct ct_sns_rsp *, const char *);
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extern void qla2x00_async_iocb_timeout(void *data);
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extern int qla24xx_async_gidpn(scsi_qla_host_t *, fc_port_t *);
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int qla24xx_post_gidpn_work(struct scsi_qla_host *, fc_port_t *);
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void qla24xx_handle_gidpn_event(scsi_qla_host_t *, struct event_arg *);
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extern void qla2x00_free_fcport(fc_port_t *);
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@ -2973,237 +2973,6 @@ qla2x00_gff_id(scsi_qla_host_t *vha, sw_info_t *list)
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}
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}
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/* GID_PN completion processing. */
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void qla24xx_handle_gidpn_event(scsi_qla_host_t *vha, struct event_arg *ea)
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{
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fc_port_t *fcport = ea->fcport;
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ql_dbg(ql_dbg_disc, vha, 0x201d,
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"%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
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__func__, fcport->port_name, fcport->disc_state,
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fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
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fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
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if (fcport->disc_state == DSC_DELETE_PEND)
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return;
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if (ea->sp->gen2 != fcport->login_gen) {
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/* PLOGI/PRLI/LOGO came in while cmd was out.*/
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ql_dbg(ql_dbg_disc, vha, 0x201e,
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"%s %8phC generation changed rscn %d|%d n",
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__func__, fcport->port_name, fcport->last_rscn_gen,
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fcport->rscn_gen);
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return;
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}
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if (!ea->rc) {
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if (ea->sp->gen1 == fcport->rscn_gen) {
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fcport->scan_state = QLA_FCPORT_FOUND;
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fcport->flags |= FCF_FABRIC_DEVICE;
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if (fcport->d_id.b24 == ea->id.b24) {
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/* cable plugged into the same place */
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switch (vha->host->active_mode) {
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case MODE_TARGET:
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if (fcport->fw_login_state ==
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DSC_LS_PRLI_COMP) {
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u16 data[2];
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/*
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* Late RSCN was delivered.
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* Remote port already login'ed.
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*/
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ql_dbg(ql_dbg_disc, vha, 0x201f,
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"%s %d %8phC post adisc\n",
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__func__, __LINE__,
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fcport->port_name);
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data[0] = data[1] = 0;
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qla2x00_post_async_adisc_work(
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vha, fcport, data);
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}
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break;
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case MODE_INITIATOR:
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case MODE_DUAL:
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default:
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ql_dbg(ql_dbg_disc, vha, 0x201f,
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"%s %d %8phC post %s\n", __func__,
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__LINE__, fcport->port_name,
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(atomic_read(&fcport->state) ==
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FCS_ONLINE) ? "adisc" : "gnl");
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if (atomic_read(&fcport->state) ==
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FCS_ONLINE) {
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u16 data[2];
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data[0] = data[1] = 0;
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qla2x00_post_async_adisc_work(
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vha, fcport, data);
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} else {
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qla24xx_post_gnl_work(vha,
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fcport);
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}
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break;
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}
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} else { /* fcport->d_id.b24 != ea->id.b24 */
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fcport->d_id.b24 = ea->id.b24;
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fcport->id_changed = 1;
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if (fcport->deleted != QLA_SESS_DELETED) {
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ql_dbg(ql_dbg_disc, vha, 0x2021,
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"%s %d %8phC post del sess\n",
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__func__, __LINE__, fcport->port_name);
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qlt_schedule_sess_for_deletion(fcport);
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}
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}
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} else { /* ea->sp->gen1 != fcport->rscn_gen */
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ql_dbg(ql_dbg_disc, vha, 0x2022,
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"%s %d %8phC post gidpn\n",
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__func__, __LINE__, fcport->port_name);
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/* rscn came in while cmd was out */
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qla24xx_post_gidpn_work(vha, fcport);
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}
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} else { /* ea->rc */
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/* cable pulled */
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if (ea->sp->gen1 == fcport->rscn_gen) {
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if (ea->sp->gen2 == fcport->login_gen) {
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ql_dbg(ql_dbg_disc, vha, 0x2042,
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"%s %d %8phC post del sess\n", __func__,
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__LINE__, fcport->port_name);
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qlt_schedule_sess_for_deletion(fcport);
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} else {
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ql_dbg(ql_dbg_disc, vha, 0x2045,
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"%s %d %8phC login\n", __func__, __LINE__,
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fcport->port_name);
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qla24xx_fcport_handle_login(vha, fcport);
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}
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} else {
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ql_dbg(ql_dbg_disc, vha, 0x2049,
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"%s %d %8phC post gidpn\n", __func__, __LINE__,
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fcport->port_name);
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qla24xx_post_gidpn_work(vha, fcport);
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}
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}
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} /* gidpn_event */
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static void qla2x00_async_gidpn_sp_done(void *s, int res)
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{
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struct srb *sp = s;
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struct scsi_qla_host *vha = sp->vha;
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fc_port_t *fcport = sp->fcport;
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u8 *id = fcport->ct_desc.ct_sns->p.rsp.rsp.gid_pn.port_id;
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struct event_arg ea;
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fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
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memset(&ea, 0, sizeof(ea));
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ea.fcport = fcport;
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ea.id.b.domain = id[0];
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ea.id.b.area = id[1];
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ea.id.b.al_pa = id[2];
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ea.sp = sp;
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ea.rc = res;
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ea.event = FCME_GIDPN_DONE;
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if (res == QLA_FUNCTION_TIMEOUT) {
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ql_dbg(ql_dbg_disc, sp->vha, 0xffff,
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"Async done-%s WWPN %8phC timed out.\n",
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sp->name, fcport->port_name);
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qla24xx_post_gidpn_work(sp->vha, fcport);
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sp->free(sp);
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return;
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} else if (res) {
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ql_dbg(ql_dbg_disc, sp->vha, 0xffff,
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"Async done-%s fail res %x, WWPN %8phC\n",
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sp->name, res, fcport->port_name);
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} else {
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ql_dbg(ql_dbg_disc, vha, 0x204f,
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"Async done-%s good WWPN %8phC ID %3phC\n",
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sp->name, fcport->port_name, id);
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}
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qla2x00_fcport_event_handler(vha, &ea);
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sp->free(sp);
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}
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int qla24xx_async_gidpn(scsi_qla_host_t *vha, fc_port_t *fcport)
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{
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int rval = QLA_FUNCTION_FAILED;
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struct ct_sns_req *ct_req;
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srb_t *sp;
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if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
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return rval;
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fcport->disc_state = DSC_GID_PN;
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fcport->scan_state = QLA_FCPORT_SCAN;
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sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
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if (!sp)
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goto done;
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fcport->flags |= FCF_ASYNC_SENT;
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sp->type = SRB_CT_PTHRU_CMD;
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sp->name = "gidpn";
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sp->gen1 = fcport->rscn_gen;
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sp->gen2 = fcport->login_gen;
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qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
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/* CT_IU preamble */
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ct_req = qla2x00_prep_ct_req(fcport->ct_desc.ct_sns, GID_PN_CMD,
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GID_PN_RSP_SIZE);
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/* GIDPN req */
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memcpy(ct_req->req.gid_pn.port_name, fcport->port_name,
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WWN_SIZE);
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/* req & rsp use the same buffer */
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sp->u.iocb_cmd.u.ctarg.req = fcport->ct_desc.ct_sns;
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sp->u.iocb_cmd.u.ctarg.req_dma = fcport->ct_desc.ct_sns_dma;
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sp->u.iocb_cmd.u.ctarg.rsp = fcport->ct_desc.ct_sns;
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sp->u.iocb_cmd.u.ctarg.rsp_dma = fcport->ct_desc.ct_sns_dma;
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sp->u.iocb_cmd.u.ctarg.req_size = GID_PN_REQ_SIZE;
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sp->u.iocb_cmd.u.ctarg.rsp_size = GID_PN_RSP_SIZE;
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sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
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sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
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sp->done = qla2x00_async_gidpn_sp_done;
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rval = qla2x00_start_sp(sp);
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if (rval != QLA_SUCCESS)
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goto done_free_sp;
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ql_dbg(ql_dbg_disc, vha, 0x20a4,
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"Async-%s - %8phC hdl=%x loopid=%x portid %02x%02x%02x.\n",
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sp->name, fcport->port_name,
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sp->handle, fcport->loop_id, fcport->d_id.b.domain,
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fcport->d_id.b.area, fcport->d_id.b.al_pa);
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return rval;
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done_free_sp:
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sp->free(sp);
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done:
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fcport->flags &= ~FCF_ASYNC_ACTIVE;
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return rval;
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}
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int qla24xx_post_gidpn_work(struct scsi_qla_host *vha, fc_port_t *fcport)
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{
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struct qla_work_evt *e;
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int ls;
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ls = atomic_read(&vha->loop_state);
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if (((ls != LOOP_READY) && (ls != LOOP_UP)) ||
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test_bit(UNLOADING, &vha->dpc_flags))
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return 0;
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e = qla2x00_alloc_work(vha, QLA_EVT_GIDPN);
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if (!e)
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return QLA_FUNCTION_FAILED;
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e->u.fcport.fcport = fcport;
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fcport->flags |= FCF_ASYNC_ACTIVE;
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return qla2x00_post_work(vha, e);
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}
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int qla24xx_post_gpsc_work(struct scsi_qla_host *vha, fc_port_t *fcport)
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{
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struct qla_work_evt *e;
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@ -3237,9 +3006,6 @@ void qla24xx_handle_gpsc_event(scsi_qla_host_t *vha, struct event_arg *ea)
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__func__, fcport->port_name);
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return;
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} else if (ea->sp->gen1 != fcport->rscn_gen) {
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ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
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__func__, __LINE__, fcport->port_name);
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qla24xx_post_gidpn_work(vha, fcport);
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return;
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}
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@ -3466,6 +3232,7 @@ void qla24xx_handle_gpnid_event(scsi_qla_host_t *vha, struct event_arg *ea)
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qlt_schedule_sess_for_deletion(conflict);
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}
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fcport->scan_needed = 0;
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fcport->rscn_gen++;
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fcport->scan_state = QLA_FCPORT_FOUND;
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fcport->flags |= FCF_FABRIC_DEVICE;
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@ -4607,9 +4374,6 @@ void qla24xx_handle_gfpnid_event(scsi_qla_host_t *vha, struct event_arg *ea)
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__func__, fcport->port_name);
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return;
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} else if (ea->sp->gen1 != fcport->rscn_gen) {
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ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
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__func__, __LINE__, fcport->port_name);
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qla24xx_post_gidpn_work(vha, fcport);
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return;
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}
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@ -413,9 +413,7 @@ void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
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__func__, ea->fcport->port_name);
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return;
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} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
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ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
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__func__, __LINE__, ea->fcport->port_name);
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qla24xx_post_gidpn_work(vha, ea->fcport);
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qla_rscn_replay(fcport);
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return;
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}
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@ -539,11 +537,7 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
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}
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if (fcport->last_rscn_gen != fcport->rscn_gen) {
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ql_dbg(ql_dbg_disc, vha, 0x20df,
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"%s %8phC rscn gen changed rscn %d|%d \n",
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__func__, fcport->port_name,
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fcport->last_rscn_gen, fcport->rscn_gen);
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qla24xx_post_gidpn_work(vha, fcport);
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qla_rscn_replay(fcport);
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return;
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} else if (fcport->last_login_gen != fcport->login_gen) {
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ql_dbg(ql_dbg_disc, vha, 0x20e0,
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@ -1226,6 +1220,18 @@ void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
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else
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ls = pd->current_login_state & 0xf;
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if (ea->sp->gen2 != fcport->login_gen) {
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/* target side must have changed it. */
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ql_dbg(ql_dbg_disc, vha, 0x20d3,
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"%s %8phC generation changed\n",
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__func__, fcport->port_name);
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return;
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} else if (ea->sp->gen1 != fcport->rscn_gen) {
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qla_rscn_replay(fcport);
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return;
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}
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switch (ls) {
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case PDS_PRLI_COMPLETE:
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__qla24xx_parse_gpdb(vha, fcport, pd);
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@ -1414,7 +1420,7 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
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if (N2N_TOPO(vha->hw))
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qla_chk_n2n_b4_login(vha, fcport);
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else
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qla24xx_post_gidpn_work(vha, fcport);
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qlt_schedule_sess_for_deletion(fcport);
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break;
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case DSC_LOGIN_COMPLETE:
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@ -1522,7 +1528,6 @@ void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
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ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gidpn\n",
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__func__, __LINE__, fcport->port_name);
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qla24xx_post_gidpn_work(vha, fcport);
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return;
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}
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|
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@ -1542,7 +1547,6 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
|
||||
{
|
||||
fc_port_t *f, *tf;
|
||||
uint32_t id = 0, mask, rid;
|
||||
unsigned long flags;
|
||||
fc_port_t *fcport;
|
||||
|
||||
switch (ea->event) {
|
||||
@ -1557,6 +1561,10 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
|
||||
return;
|
||||
switch (ea->id.b.rsvd_1) {
|
||||
case RSCN_PORT_ADDR:
|
||||
#define BIGSCAN 1
|
||||
#if defined BIGSCAN & BIGSCAN > 0
|
||||
{
|
||||
unsigned long flags;
|
||||
fcport = qla2x00_find_fcport_by_nportid
|
||||
(vha, &ea->id, 1);
|
||||
if (fcport) {
|
||||
@ -1572,7 +1580,26 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
|
||||
schedule_delayed_work(&vha->scan.scan_work, 5);
|
||||
}
|
||||
spin_unlock_irqrestore(&vha->work_lock, flags);
|
||||
|
||||
}
|
||||
#else
|
||||
{
|
||||
int rc;
|
||||
fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
|
||||
if (!fcport) {
|
||||
/* cable moved */
|
||||
rc = qla24xx_post_gpnid_work(vha, &ea->id);
|
||||
if (rc) {
|
||||
ql_log(ql_log_warn, vha, 0xd044,
|
||||
"RSCN GPNID work failed %06x\n",
|
||||
ea->id.b24);
|
||||
}
|
||||
} else {
|
||||
ea->fcport = fcport;
|
||||
fcport->scan_needed = 1;
|
||||
qla24xx_handle_rscn_event(fcport, ea);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
break;
|
||||
case RSCN_AREA_ADDR:
|
||||
case RSCN_DOM_ADDR:
|
||||
@ -1608,9 +1635,6 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
|
||||
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
|
||||
}
|
||||
break;
|
||||
case FCME_GIDPN_DONE:
|
||||
qla24xx_handle_gidpn_event(vha, ea);
|
||||
break;
|
||||
case FCME_GNL_DONE:
|
||||
qla24xx_handle_gnl_done_event(vha, ea);
|
||||
break;
|
||||
@ -1650,6 +1674,36 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* RSCN(s) came in for this fcport, but the RSCN(s) was not able
|
||||
* to be consumed by the fcport
|
||||
*/
|
||||
void qla_rscn_replay(fc_port_t *fcport)
|
||||
{
|
||||
struct event_arg ea;
|
||||
|
||||
switch (fcport->disc_state) {
|
||||
case DSC_DELETE_PEND:
|
||||
return;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (fcport->scan_needed) {
|
||||
memset(&ea, 0, sizeof(ea));
|
||||
ea.event = FCME_RSCN;
|
||||
ea.id = fcport->d_id;
|
||||
ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
|
||||
#if defined BIGSCAN & BIGSCAN > 0
|
||||
qla2x00_fcport_event_handler(fcport->vha, &ea);
|
||||
#else
|
||||
qla24xx_post_gpnid_work(fcport->vha, &ea.id);
|
||||
#endif
|
||||
} else {
|
||||
qla24xx_post_gnl_work(fcport->vha, fcport);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
qla2x00_tmf_iocb_timeout(void *data)
|
||||
{
|
||||
@ -1905,9 +1959,7 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
|
||||
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
|
||||
return;
|
||||
} else if (ea->sp->gen1 != fcport->rscn_gen) {
|
||||
ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
|
||||
__func__, __LINE__, fcport->port_name);
|
||||
qla24xx_post_gidpn_work(vha, fcport);
|
||||
qla_rscn_replay(fcport);
|
||||
return;
|
||||
}
|
||||
|
||||
@ -1996,8 +2048,6 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
|
||||
"%s %d %8phC NPortId %06x inuse with loopid 0x%x. post gidpn\n",
|
||||
__func__, __LINE__, ea->fcport->port_name,
|
||||
ea->fcport->d_id.b24, lid);
|
||||
qla2x00_clear_loop_id(ea->fcport);
|
||||
qla24xx_post_gidpn_work(vha, ea->fcport);
|
||||
} else {
|
||||
ql_dbg(ql_dbg_disc, vha, 0x20ed,
|
||||
"%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
|
||||
|
||||
@ -5032,9 +5032,6 @@ qla2x00_do_work(struct scsi_qla_host *vha)
|
||||
case QLA_EVT_AENFX:
|
||||
qlafx00_process_aen(vha, e);
|
||||
break;
|
||||
case QLA_EVT_GIDPN:
|
||||
qla24xx_async_gidpn(vha, e->u.fcport.fcport);
|
||||
break;
|
||||
case QLA_EVT_GPNID:
|
||||
qla24xx_async_gpnid(vha, &e->u.gpnid.id);
|
||||
break;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user