1 files changed, 178 insertions, 10 deletions

diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index bb2752b4130f..da10e0df6879 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -120,14 +120,13 @@ static void zfcp_wka_port_put(struct zfcp_wka_port *wka_port)
 	schedule_delayed_work(&wka_port->work, HZ / 100);
 }
 
-void zfcp_fc_nameserver_init(struct zfcp_adapter *adapter)
+static void zfcp_fc_wka_port_init(struct zfcp_wka_port *wka_port, u32 d_id,
+				  struct zfcp_adapter *adapter)
 {
-	struct zfcp_wka_port *wka_port = &adapter->nsp;
-
 	init_waitqueue_head(&wka_port->completion_wq);
 
 	wka_port->adapter = adapter;
-	wka_port->d_id = ZFCP_DID_DIRECTORY_SERVICE;
+	wka_port->d_id = d_id;
 
 	wka_port->status = ZFCP_WKA_PORT_OFFLINE;
 	atomic_set(&wka_port->refcount, 0);
@@ -143,6 +142,17 @@ void zfcp_fc_wka_port_force_offline(struct zfcp_wka_port *wka)
 	mutex_unlock(&wka->mutex);
 }
 
+void zfcp_fc_wka_ports_init(struct zfcp_adapter *adapter)
+{
+	struct zfcp_wka_ports *gs = adapter->gs;
+
+	zfcp_fc_wka_port_init(&gs->ms, FC_FID_MGMT_SERV, adapter);
+	zfcp_fc_wka_port_init(&gs->ts, FC_FID_TIME_SERV, adapter);
+	zfcp_fc_wka_port_init(&gs->ds, FC_FID_DIR_SERV, adapter);
+	zfcp_fc_wka_port_init(&gs->as, FC_FID_ALIASES, adapter);
+	zfcp_fc_wka_port_init(&gs->ks, FC_FID_SEC_KEY, adapter);
+}
+
 static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
 				   struct fcp_rscn_element *elem)
 {
@@ -282,7 +292,7 @@ int static zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action,
 
 	/* setup parameters for send generic command */
 	gid_pn->port = erp_action->port;
-	gid_pn->ct.wka_port = &adapter->nsp;
+	gid_pn->ct.wka_port = &adapter->gs->ds;
 	gid_pn->ct.handler = zfcp_fc_ns_handler;
 	gid_pn->ct.handler_data = (unsigned long) &compl_rec;
 	gid_pn->ct.timeout = ZFCP_NS_GID_PN_TIMEOUT;
@@ -329,13 +339,13 @@ int zfcp_fc_ns_gid_pn(struct zfcp_erp_action *erp_action)
 
 	memset(gid_pn, 0, sizeof(*gid_pn));
 
-	ret = zfcp_wka_port_get(&adapter->nsp);
+	ret = zfcp_wka_port_get(&adapter->gs->ds);
 	if (ret)
 		goto out;
 
 	ret = zfcp_fc_ns_gid_pn_request(erp_action, gid_pn);
 
-	zfcp_wka_port_put(&adapter->nsp);
+	zfcp_wka_port_put(&adapter->gs->ds);
 out:
 	mempool_free(gid_pn, adapter->pool.data_gid_pn);
 	return ret;
@@ -525,7 +535,7 @@ static int zfcp_scan_issue_gpn_ft(struct zfcp_gpn_ft *gpn_ft,
 	req->fc4_type = ZFCP_CT_SCSI_FCP;
 
 	/* prepare zfcp_send_ct */
-	ct->wka_port = &adapter->nsp;
+	ct->wka_port = &adapter->gs->ds;
 	ct->handler = zfcp_fc_ns_handler;
 	ct->handler_data = (unsigned long)&compl_rec;
 	ct->timeout = 10;
@@ -644,7 +654,7 @@ int zfcp_scan_ports(struct zfcp_adapter *adapter)
 	    fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
 		return 0;
 
-	ret = zfcp_wka_port_get(&adapter->nsp);
+	ret = zfcp_wka_port_get(&adapter->gs->ds);
 	if (ret)
 		return ret;
 
@@ -666,7 +676,7 @@ int zfcp_scan_ports(struct zfcp_adapter *adapter)
 	}
 	zfcp_free_sg_env(gpn_ft, buf_num);
 out:
-	zfcp_wka_port_put(&adapter->nsp);
+	zfcp_wka_port_put(&adapter->gs->ds);
 	return ret;
 }
 
@@ -675,3 +685,161 @@ void _zfcp_scan_ports_later(struct work_struct *work)
 {
 	zfcp_scan_ports(container_of(work, struct zfcp_adapter, scan_work));
 }
+
+struct zfcp_els_fc_job {
+	struct zfcp_send_els els;
+	struct fc_bsg_job *job;
+};
+
+static void zfcp_fc_generic_els_handler(unsigned long data)
+{
+	struct zfcp_els_fc_job *els_fc_job = (struct zfcp_els_fc_job *) data;
+	struct fc_bsg_job *job = els_fc_job->job;
+	struct fc_bsg_reply *reply = job->reply;
+
+	if (els_fc_job->els.status) {
+		/* request rejected or timed out */
+		reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_REJECT;
+		goto out;
+	}
+
+	reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
+	reply->reply_payload_rcv_len = blk_rq_bytes(job->req->next_rq);
+
+out:
+	job->state_flags = FC_RQST_STATE_DONE;
+	job->job_done(job);
+	kfree(els_fc_job);
+}
+
+int zfcp_fc_execute_els_fc_job(struct fc_bsg_job *job)
+{
+	struct zfcp_els_fc_job *els_fc_job;
+	struct fc_rport *rport = job->rport;
+	struct Scsi_Host *shost;
+	struct zfcp_adapter *adapter;
+	struct zfcp_port *port;
+	u8 *port_did;
+
+	shost = rport ? rport_to_shost(rport) : job->shost;
+	adapter = (struct zfcp_adapter *)shost->hostdata[0];
+
+	if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN))
+		return -EINVAL;
+
+	els_fc_job = kzalloc(sizeof(struct zfcp_els_fc_job), GFP_KERNEL);
+	if (!els_fc_job)
+		return -ENOMEM;
+
+	els_fc_job->els.adapter = adapter;
+	if (rport) {
+		read_lock_irq(&zfcp_data.config_lock);
+		port = rport->dd_data;
+		if (port)
+			zfcp_port_get(port);
+		read_unlock_irq(&zfcp_data.config_lock);
+		if (!port) {
+			kfree(els_fc_job);
+			return -EINVAL;
+		}
+		els_fc_job->els.port = port;
+		els_fc_job->els.d_id = port->d_id;
+		zfcp_port_put(port);
+	} else {
+		port_did = job->request->rqst_data.h_els.port_id;
+		els_fc_job->els.d_id = (port_did[0] << 16) +
+					(port_did[1] << 8) + port_did[2];
+	}
+
+	els_fc_job->els.req = job->request_payload.sg_list;
+	els_fc_job->els.resp = job->reply_payload.sg_list;
+	els_fc_job->els.handler = zfcp_fc_generic_els_handler;
+	els_fc_job->els.handler_data = (unsigned long) els_fc_job;
+	els_fc_job->job = job;
+
+	return zfcp_fsf_send_els(&els_fc_job->els);
+}
+
+struct zfcp_ct_fc_job {
+	struct zfcp_send_ct ct;
+	struct fc_bsg_job *job;
+};
+
+static void zfcp_fc_generic_ct_handler(unsigned long data)
+{
+	struct zfcp_ct_fc_job *ct_fc_job = (struct zfcp_ct_fc_job *) data;
+	struct fc_bsg_job *job = ct_fc_job->job;
+
+	job->reply->reply_data.ctels_reply.status = ct_fc_job->ct.status ?
+				FC_CTELS_STATUS_REJECT : FC_CTELS_STATUS_OK;
+	job->state_flags = FC_RQST_STATE_DONE;
+	job->reply->reply_payload_rcv_len = blk_rq_bytes(job->req->next_rq);
+	job->job_done(job);
+
+	zfcp_wka_port_put(ct_fc_job->ct.wka_port);
+
+	kfree(ct_fc_job);
+}
+
+int zfcp_fc_execute_ct_fc_job(struct fc_bsg_job *job)
+{
+	int ret;
+	u8 gs_type;
+	struct fc_rport *rport = job->rport;
+	struct Scsi_Host *shost;
+	struct zfcp_adapter *adapter;
+	struct zfcp_ct_fc_job *ct_fc_job;
+	u32 preamble_word1;
+
+	shost = rport ? rport_to_shost(rport) : job->shost;
+
+	adapter = (struct zfcp_adapter *)shost->hostdata[0];
+	if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN))
+		return -EINVAL;
+
+	ct_fc_job = kzalloc(sizeof(struct zfcp_ct_fc_job), GFP_KERNEL);
+	if (!ct_fc_job)
+		return -ENOMEM;
+
+	preamble_word1 = job->request->rqst_data.r_ct.preamble_word1;
+	gs_type = (preamble_word1 & 0xff000000) >> 24;
+
+	switch (gs_type) {
+	case FC_FST_ALIAS:
+		ct_fc_job->ct.wka_port = &adapter->gs->as;
+		break;
+	case FC_FST_MGMT:
+		ct_fc_job->ct.wka_port = &adapter->gs->ms;
+		break;
+	case FC_FST_TIME:
+		ct_fc_job->ct.wka_port = &adapter->gs->ts;
+		break;
+	case FC_FST_DIR:
+		ct_fc_job->ct.wka_port = &adapter->gs->ds;
+		break;
+	default:
+		kfree(ct_fc_job);
+		return -EINVAL; /* no such service */
+	}
+
+	ret = zfcp_wka_port_get(ct_fc_job->ct.wka_port);
+	if (ret) {
+		kfree(ct_fc_job);
+		return ret;
+	}
+
+	ct_fc_job->ct.req = job->request_payload.sg_list;
+	ct_fc_job->ct.resp = job->reply_payload.sg_list;
+	ct_fc_job->ct.timeout = ZFCP_FSF_REQUEST_TIMEOUT;
+	ct_fc_job->ct.handler = zfcp_fc_generic_ct_handler;
+	ct_fc_job->ct.handler_data = (unsigned long) ct_fc_job;
+	ct_fc_job->ct.completion = NULL;
+	ct_fc_job->job = job;
+
+	ret = zfcp_fsf_send_ct(&ct_fc_job->ct, NULL, NULL);
+	if (ret) {
+		kfree(ct_fc_job);
+		zfcp_wka_port_put(ct_fc_job->ct.wka_port);
+	}
+	return ret;
+}