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-rw-r--r--drivers/s390/scsi/zfcp_aux.c2
-rw-r--r--drivers/s390/scsi/zfcp_def.h1
-rw-r--r--drivers/s390/scsi/zfcp_erp.c2
-rw-r--r--drivers/s390/scsi/zfcp_ext.h1
-rw-r--r--drivers/s390/scsi/zfcp_fc.c120
-rw-r--r--drivers/s390/scsi/zfcp_fc.h42
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c1
7 files changed, 169 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 88691adc1283..645b0fcbb370 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -362,6 +362,7 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device)
INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);
INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports);
+ INIT_WORK(&adapter->ns_up_work, zfcp_fc_sym_name_update);
if (zfcp_qdio_setup(adapter))
goto failed;
@@ -427,6 +428,7 @@ void zfcp_adapter_unregister(struct zfcp_adapter *adapter)
cancel_work_sync(&adapter->scan_work);
cancel_work_sync(&adapter->stat_work);
+ cancel_work_sync(&adapter->ns_up_work);
zfcp_destroy_adapter_work_queue(adapter);
zfcp_fc_wka_ports_force_offline(adapter->gs);
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 1566208997b6..527ba48eea57 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -189,6 +189,7 @@ struct zfcp_adapter {
struct fsf_qtcb_bottom_port *stats_reset_data;
unsigned long stats_reset;
struct work_struct scan_work;
+ struct work_struct ns_up_work;
struct service_level service_level;
struct workqueue_struct *work_queue;
struct device_dma_parameters dma_parms;
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 6c1cddf0d0a0..e1b4f800e226 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -1231,8 +1231,10 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
if (result == ZFCP_ERP_SUCCEEDED) {
register_service_level(&adapter->service_level);
queue_work(adapter->work_queue, &adapter->scan_work);
+ queue_work(adapter->work_queue, &adapter->ns_up_work);
} else
unregister_service_level(&adapter->service_level);
+
kref_put(&adapter->ref, zfcp_adapter_release);
break;
}
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index 410d9ddc175a..03627cfd81cd 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -96,6 +96,7 @@ extern int zfcp_fc_gs_setup(struct zfcp_adapter *);
extern void zfcp_fc_gs_destroy(struct zfcp_adapter *);
extern int zfcp_fc_exec_bsg_job(struct fc_bsg_job *);
extern int zfcp_fc_timeout_bsg_job(struct fc_bsg_job *);
+extern void zfcp_fc_sym_name_update(struct work_struct *);
/* zfcp_fsf.c */
extern struct kmem_cache *zfcp_fsf_qtcb_cache;
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index c839a3b6879d..297e6b71ce9c 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -11,6 +11,7 @@
#include <linux/types.h>
#include <linux/slab.h>
+#include <linux/utsname.h>
#include <scsi/fc/fc_els.h>
#include <scsi/libfc.h>
#include "zfcp_ext.h"
@@ -696,6 +697,125 @@ out:
zfcp_fc_wka_port_put(&adapter->gs->ds);
}
+static int zfcp_fc_gspn(struct zfcp_adapter *adapter,
+ struct zfcp_fc_req *fc_req)
+{
+ DECLARE_COMPLETION_ONSTACK(completion);
+ char devno[] = "DEVNO:";
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_gspn_req *gspn_req = &fc_req->u.gspn.req;
+ struct zfcp_fc_gspn_rsp *gspn_rsp = &fc_req->u.gspn.rsp;
+ int ret;
+
+ zfcp_fc_ct_ns_init(&gspn_req->ct_hdr, FC_NS_GSPN_ID,
+ FC_SYMBOLIC_NAME_SIZE);
+ hton24(gspn_req->gspn.fp_fid, fc_host_port_id(adapter->scsi_host));
+
+ sg_init_one(&fc_req->sg_req, gspn_req, sizeof(*gspn_req));
+ sg_init_one(&fc_req->sg_rsp, gspn_rsp, sizeof(*gspn_rsp));
+
+ ct_els->handler = zfcp_fc_complete;
+ ct_els->handler_data = &completion;
+ ct_els->req = &fc_req->sg_req;
+ ct_els->resp = &fc_req->sg_rsp;
+
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
+ ZFCP_FC_CTELS_TMO);
+ if (ret)
+ return ret;
+
+ wait_for_completion(&completion);
+ if (ct_els->status)
+ return ct_els->status;
+
+ if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_NPIV &&
+ !(strstr(gspn_rsp->gspn.fp_name, devno)))
+ snprintf(fc_host_symbolic_name(adapter->scsi_host),
+ FC_SYMBOLIC_NAME_SIZE, "%s%s %s NAME: %s",
+ gspn_rsp->gspn.fp_name, devno,
+ dev_name(&adapter->ccw_device->dev),
+ init_utsname()->nodename);
+ else
+ strlcpy(fc_host_symbolic_name(adapter->scsi_host),
+ gspn_rsp->gspn.fp_name, FC_SYMBOLIC_NAME_SIZE);
+
+ return 0;
+}
+
+static void zfcp_fc_rspn(struct zfcp_adapter *adapter,
+ struct zfcp_fc_req *fc_req)
+{
+ DECLARE_COMPLETION_ONSTACK(completion);
+ struct Scsi_Host *shost = adapter->scsi_host;
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_rspn_req *rspn_req = &fc_req->u.rspn.req;
+ struct fc_ct_hdr *rspn_rsp = &fc_req->u.rspn.rsp;
+ int ret, len;
+
+ zfcp_fc_ct_ns_init(&rspn_req->ct_hdr, FC_NS_RSPN_ID,
+ FC_SYMBOLIC_NAME_SIZE);
+ hton24(rspn_req->rspn.fr_fid.fp_fid, fc_host_port_id(shost));
+ len = strlcpy(rspn_req->rspn.fr_name, fc_host_symbolic_name(shost),
+ FC_SYMBOLIC_NAME_SIZE);
+ rspn_req->rspn.fr_name_len = len;
+
+ sg_init_one(&fc_req->sg_req, rspn_req, sizeof(*rspn_req));
+ sg_init_one(&fc_req->sg_rsp, rspn_rsp, sizeof(*rspn_rsp));
+
+ ct_els->handler = zfcp_fc_complete;
+ ct_els->handler_data = &completion;
+ ct_els->req = &fc_req->sg_req;
+ ct_els->resp = &fc_req->sg_rsp;
+
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
+ ZFCP_FC_CTELS_TMO);
+ if (!ret)
+ wait_for_completion(&completion);
+}
+
+/**
+ * zfcp_fc_sym_name_update - Retrieve and update the symbolic port name
+ * @work: ns_up_work of the adapter where to update the symbolic port name
+ *
+ * Retrieve the current symbolic port name that may have been set by
+ * the hardware using the GSPN request and update the fc_host
+ * symbolic_name sysfs attribute. When running in NPIV mode (and hence
+ * the port name is unique for this system), update the symbolic port
+ * name to add Linux specific information and update the FC nameserver
+ * using the RSPN request.
+ */
+void zfcp_fc_sym_name_update(struct work_struct *work)
+{
+ struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter,
+ ns_up_work);
+ int ret;
+ struct zfcp_fc_req *fc_req;
+
+ if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT &&
+ fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
+ return;
+
+ fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_KERNEL);
+ if (!fc_req)
+ return;
+
+ ret = zfcp_fc_wka_port_get(&adapter->gs->ds);
+ if (ret)
+ goto out_free;
+
+ ret = zfcp_fc_gspn(adapter, fc_req);
+ if (ret || fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
+ goto out_ds_put;
+
+ memset(fc_req, 0, sizeof(*fc_req));
+ zfcp_fc_rspn(adapter, fc_req);
+
+out_ds_put:
+ zfcp_fc_wka_port_put(&adapter->gs->ds);
+out_free:
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
+}
+
static void zfcp_fc_ct_els_job_handler(void *data)
{
struct fc_bsg_job *job = data;
diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h
index 5243ce44aa42..4561f3bf7300 100644
--- a/drivers/s390/scsi/zfcp_fc.h
+++ b/drivers/s390/scsi/zfcp_fc.h
@@ -84,6 +84,40 @@ struct zfcp_fc_gpn_ft_req {
} __packed;
/**
+ * struct zfcp_fc_gspn_req - container for ct header plus GSPN_ID request
+ * @ct_hdr: FC GS common transport header
+ * @gspn: GSPN_ID request
+ */
+struct zfcp_fc_gspn_req {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_gid_pn_resp gspn;
+} __packed;
+
+/**
+ * struct zfcp_fc_gspn_rsp - container for ct header plus GSPN_ID response
+ * @ct_hdr: FC GS common transport header
+ * @gspn: GSPN_ID response
+ * @name: The name string of the GSPN_ID response
+ */
+struct zfcp_fc_gspn_rsp {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_gspn_resp gspn;
+ char name[FC_SYMBOLIC_NAME_SIZE];
+} __packed;
+
+/**
+ * struct zfcp_fc_rspn_req - container for ct header plus RSPN_ID request
+ * @ct_hdr: FC GS common transport header
+ * @rspn: RSPN_ID request
+ * @name: The name string of the RSPN_ID request
+ */
+struct zfcp_fc_rspn_req {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_ns_rspn rspn;
+ char name[FC_SYMBOLIC_NAME_SIZE];
+} __packed;
+
+/**
* struct zfcp_fc_req - Container for FC ELS and CT requests sent from zfcp
* @ct_els: data required for issuing fsf command
* @sg_req: scatterlist entry for request data
@@ -107,6 +141,14 @@ struct zfcp_fc_req {
struct scatterlist sg_rsp2[ZFCP_FC_GPN_FT_NUM_BUFS - 1];
struct zfcp_fc_gpn_ft_req req;
} gpn_ft;
+ struct {
+ struct zfcp_fc_gspn_req req;
+ struct zfcp_fc_gspn_rsp rsp;
+ } gspn;
+ struct {
+ struct zfcp_fc_rspn_req req;
+ struct fc_ct_hdr rsp;
+ } rspn;
} u;
};
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index dbba0827127f..2a4991d6d4d5 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -720,6 +720,7 @@ struct fc_function_template zfcp_transport_functions = {
/* no functions registered for following dynamic attributes but
directly set by LLDD */
.show_host_port_type = 1,
+ .show_host_symbolic_name = 1,
.show_host_speed = 1,
.show_host_port_id = 1,
.dd_bsg_size = sizeof(struct zfcp_fsf_ct_els),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 11:15:23 +0000