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-rw-r--r--drivers/s390/scsi/Makefile2
-rw-r--r--drivers/s390/scsi/zfcp_aux.c131
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c112
-rw-r--r--drivers/s390/scsi/zfcp_cfdc.c445
-rw-r--r--drivers/s390/scsi/zfcp_dbf.c1211
-rw-r--r--drivers/s390/scsi/zfcp_dbf.h498
-rw-r--r--drivers/s390/scsi/zfcp_def.h28
-rw-r--r--drivers/s390/scsi/zfcp_erp.c192
-rw-r--r--drivers/s390/scsi/zfcp_ext.h86
-rw-r--r--drivers/s390/scsi/zfcp_fc.c380
-rw-r--r--drivers/s390/scsi/zfcp_fc.h126
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c455
-rw-r--r--drivers/s390/scsi/zfcp_fsf.h28
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c100
-rw-r--r--drivers/s390/scsi/zfcp_qdio.h77
-rw-r--r--drivers/s390/scsi/zfcp_reqlist.h2
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c143
-rw-r--r--drivers/s390/scsi/zfcp_sysfs.c78
-rw-r--r--drivers/s390/scsi/zfcp_unit.c41
19 files changed, 1676 insertions, 2459 deletions
diff --git a/drivers/s390/scsi/Makefile b/drivers/s390/scsi/Makefile
index c454ffebb63..9259039e886 100644
--- a/drivers/s390/scsi/Makefile
+++ b/drivers/s390/scsi/Makefile
@@ -2,7 +2,7 @@
# Makefile for the S/390 specific device drivers
#
-zfcp-objs := zfcp_aux.o zfcp_ccw.o zfcp_cfdc.o zfcp_dbf.o zfcp_erp.o \
+zfcp-objs := zfcp_aux.o zfcp_ccw.o zfcp_dbf.o zfcp_erp.o \
zfcp_fc.o zfcp_fsf.o zfcp_qdio.o zfcp_scsi.o zfcp_sysfs.o \
zfcp_unit.o
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 044fb22718d..8004b071a9f 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -3,7 +3,7 @@
*
* Module interface and handling of zfcp data structures.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2013
*/
/*
@@ -23,6 +23,7 @@
* Christof Schmitt
* Martin Petermann
* Sven Schuetz
+ * Steffen Maier
*/
#define KMSG_COMPONENT "zfcp"
@@ -31,6 +32,7 @@
#include <linux/miscdevice.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include "zfcp_ext.h"
#include "zfcp_fc.h"
#include "zfcp_reqlist.h"
@@ -45,8 +47,8 @@ static char *init_device;
module_param_named(device, init_device, charp, 0400);
MODULE_PARM_DESC(device, "specify initial device");
-static struct kmem_cache *zfcp_cache_hw_align(const char *name,
- unsigned long size)
+static struct kmem_cache * __init zfcp_cache_hw_align(const char *name,
+ unsigned long size)
{
return kmem_cache_create(name, size, roundup_pow_of_two(size), 0, NULL);
}
@@ -102,11 +104,11 @@ static void __init zfcp_init_device_setup(char *devstr)
strncpy(busid, token, ZFCP_BUS_ID_SIZE);
token = strsep(&str, ",");
- if (!token || strict_strtoull(token, 0, (unsigned long long *) &wwpn))
+ if (!token || kstrtoull(token, 0, (unsigned long long *) &wwpn))
goto err_out;
token = strsep(&str, ",");
- if (!token || strict_strtoull(token, 0, (unsigned long long *) &lun))
+ if (!token || kstrtoull(token, 0, (unsigned long long *) &lun))
goto err_out;
kfree(str_saved);
@@ -122,45 +124,23 @@ static int __init zfcp_module_init(void)
{
int retval = -ENOMEM;
- zfcp_data.gpn_ft_cache = zfcp_cache_hw_align("zfcp_gpn",
- sizeof(struct zfcp_fc_gpn_ft_req));
- if (!zfcp_data.gpn_ft_cache)
- goto out;
-
- zfcp_data.qtcb_cache = zfcp_cache_hw_align("zfcp_qtcb",
- sizeof(struct fsf_qtcb));
- if (!zfcp_data.qtcb_cache)
+ zfcp_fsf_qtcb_cache = zfcp_cache_hw_align("zfcp_fsf_qtcb",
+ sizeof(struct fsf_qtcb));
+ if (!zfcp_fsf_qtcb_cache)
goto out_qtcb_cache;
- zfcp_data.sr_buffer_cache = zfcp_cache_hw_align("zfcp_sr",
- sizeof(struct fsf_status_read_buffer));
- if (!zfcp_data.sr_buffer_cache)
- goto out_sr_cache;
-
- zfcp_data.gid_pn_cache = zfcp_cache_hw_align("zfcp_gid",
- sizeof(struct zfcp_fc_gid_pn));
- if (!zfcp_data.gid_pn_cache)
- goto out_gid_cache;
+ zfcp_fc_req_cache = zfcp_cache_hw_align("zfcp_fc_req",
+ sizeof(struct zfcp_fc_req));
+ if (!zfcp_fc_req_cache)
+ goto out_fc_cache;
- zfcp_data.adisc_cache = zfcp_cache_hw_align("zfcp_adisc",
- sizeof(struct zfcp_fc_els_adisc));
- if (!zfcp_data.adisc_cache)
- goto out_adisc_cache;
-
- zfcp_data.scsi_transport_template =
+ zfcp_scsi_transport_template =
fc_attach_transport(&zfcp_transport_functions);
- if (!zfcp_data.scsi_transport_template)
+ if (!zfcp_scsi_transport_template)
goto out_transport;
- scsi_transport_reserve_device(zfcp_data.scsi_transport_template,
+ scsi_transport_reserve_device(zfcp_scsi_transport_template,
sizeof(struct zfcp_scsi_dev));
-
- retval = misc_register(&zfcp_cfdc_misc);
- if (retval) {
- pr_err("Registering the misc device zfcp_cfdc failed\n");
- goto out_misc;
- }
-
retval = ccw_driver_register(&zfcp_ccw_driver);
if (retval) {
pr_err("The zfcp device driver could not register with "
@@ -173,20 +153,12 @@ static int __init zfcp_module_init(void)
return 0;
out_ccw_register:
- misc_deregister(&zfcp_cfdc_misc);
-out_misc:
- fc_release_transport(zfcp_data.scsi_transport_template);
+ fc_release_transport(zfcp_scsi_transport_template);
out_transport:
- kmem_cache_destroy(zfcp_data.adisc_cache);
-out_adisc_cache:
- kmem_cache_destroy(zfcp_data.gid_pn_cache);
-out_gid_cache:
- kmem_cache_destroy(zfcp_data.sr_buffer_cache);
-out_sr_cache:
- kmem_cache_destroy(zfcp_data.qtcb_cache);
+ kmem_cache_destroy(zfcp_fc_req_cache);
+out_fc_cache:
+ kmem_cache_destroy(zfcp_fsf_qtcb_cache);
out_qtcb_cache:
- kmem_cache_destroy(zfcp_data.gpn_ft_cache);
-out:
return retval;
}
@@ -195,13 +167,9 @@ module_init(zfcp_module_init);
static void __exit zfcp_module_exit(void)
{
ccw_driver_unregister(&zfcp_ccw_driver);
- misc_deregister(&zfcp_cfdc_misc);
- fc_release_transport(zfcp_data.scsi_transport_template);
- kmem_cache_destroy(zfcp_data.adisc_cache);
- kmem_cache_destroy(zfcp_data.gid_pn_cache);
- kmem_cache_destroy(zfcp_data.sr_buffer_cache);
- kmem_cache_destroy(zfcp_data.qtcb_cache);
- kmem_cache_destroy(zfcp_data.gpn_ft_cache);
+ fc_release_transport(zfcp_scsi_transport_template);
+ kmem_cache_destroy(zfcp_fc_req_cache);
+ kmem_cache_destroy(zfcp_fsf_qtcb_cache);
}
module_exit(zfcp_module_exit);
@@ -260,18 +228,18 @@ static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
return -ENOMEM;
adapter->pool.qtcb_pool =
- mempool_create_slab_pool(4, zfcp_data.qtcb_cache);
+ mempool_create_slab_pool(4, zfcp_fsf_qtcb_cache);
if (!adapter->pool.qtcb_pool)
return -ENOMEM;
- adapter->pool.status_read_data =
- mempool_create_slab_pool(FSF_STATUS_READS_RECOM,
- zfcp_data.sr_buffer_cache);
- if (!adapter->pool.status_read_data)
+ BUILD_BUG_ON(sizeof(struct fsf_status_read_buffer) > PAGE_SIZE);
+ adapter->pool.sr_data =
+ mempool_create_page_pool(FSF_STATUS_READS_RECOM, 0);
+ if (!adapter->pool.sr_data)
return -ENOMEM;
adapter->pool.gid_pn =
- mempool_create_slab_pool(1, zfcp_data.gid_pn_cache);
+ mempool_create_slab_pool(1, zfcp_fc_req_cache);
if (!adapter->pool.gid_pn)
return -ENOMEM;
@@ -290,8 +258,8 @@ static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
mempool_destroy(adapter->pool.qtcb_pool);
if (adapter->pool.status_read_req)
mempool_destroy(adapter->pool.status_read_req);
- if (adapter->pool.status_read_data)
- mempool_destroy(adapter->pool.status_read_data);
+ if (adapter->pool.sr_data)
+ mempool_destroy(adapter->pool.sr_data);
if (adapter->pool.gid_pn)
mempool_destroy(adapter->pool.gid_pn);
}
@@ -311,8 +279,7 @@ int zfcp_status_read_refill(struct zfcp_adapter *adapter)
if (zfcp_fsf_status_read(adapter->qdio)) {
if (atomic_read(&adapter->stat_miss) >=
adapter->stat_read_buf_num) {
- zfcp_erp_adapter_reopen(adapter, 0, "axsref1",
- NULL);
+ zfcp_erp_adapter_reopen(adapter, 0, "axsref1");
return 1;
}
break;
@@ -387,6 +354,7 @@ 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;
@@ -438,7 +406,9 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device)
adapter->dma_parms.max_segment_size = ZFCP_QDIO_SBALE_LEN;
adapter->ccw_device->dev.dma_parms = &adapter->dma_parms;
- if (!zfcp_adapter_scsi_register(adapter))
+ adapter->stat_read_buf_num = FSF_STATUS_READS_RECOM;
+
+ if (!zfcp_scsi_adapter_register(adapter))
return adapter;
failed:
@@ -452,14 +422,15 @@ 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);
- zfcp_adapter_scsi_unregister(adapter);
+ zfcp_scsi_adapter_unregister(adapter);
sysfs_remove_group(&cdev->dev.kobj, &zfcp_sysfs_adapter_attrs);
zfcp_erp_thread_kill(adapter);
- zfcp_dbf_adapter_unregister(adapter->dbf);
+ zfcp_dbf_adapter_unregister(adapter);
zfcp_qdio_destroy(adapter->qdio);
zfcp_ccw_adapter_put(adapter); /* final put to release */
@@ -486,20 +457,6 @@ void zfcp_adapter_release(struct kref *ref)
put_device(&cdev->dev);
}
-/**
- * zfcp_device_unregister - remove port, unit from system
- * @dev: reference to device which is to be removed
- * @grp: related reference to attribute group
- *
- * Helper function to unregister port, unit from system
- */
-void zfcp_device_unregister(struct device *dev,
- const struct attribute_group *grp)
-{
- sysfs_remove_group(&dev->kobj, grp);
- device_unregister(dev);
-}
-
static void zfcp_port_release(struct device *dev)
{
struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
@@ -541,6 +498,7 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
rwlock_init(&port->unit_list_lock);
INIT_LIST_HEAD(&port->unit_list);
+ atomic_set(&port->units, 0);
INIT_WORK(&port->gid_pn_work, zfcp_fc_port_did_lookup);
INIT_WORK(&port->test_link_work, zfcp_fc_link_test_work);
@@ -551,6 +509,7 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
port->wwpn = wwpn;
port->rport_task = RPORT_NONE;
port->dev.parent = &adapter->ccw_device->dev;
+ port->dev.groups = zfcp_port_attr_groups;
port->dev.release = zfcp_port_release;
if (dev_set_name(&port->dev, "0x%016llx", (unsigned long long)wwpn)) {
@@ -564,10 +523,6 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
goto err_out;
}
- if (sysfs_create_group(&port->dev.kobj,
- &zfcp_sysfs_port_attrs))
- goto err_out_put;
-
write_lock_irq(&adapter->port_list_lock);
list_add_tail(&port->list, &adapter->port_list);
write_unlock_irq(&adapter->port_list_lock);
@@ -576,8 +531,6 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
return port;
-err_out_put:
- device_unregister(&port->dev);
err_out:
zfcp_ccw_adapter_put(adapter);
return ERR_PTR(retval);
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 0833c2b51e3..f9879d400d0 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -3,12 +3,13 @@
*
* Registration and callback for the s390 common I/O layer.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2010
*/
#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/module.h>
#include "zfcp_ext.h"
#include "zfcp_reqlist.h"
@@ -38,19 +39,25 @@ void zfcp_ccw_adapter_put(struct zfcp_adapter *adapter)
spin_unlock_irqrestore(&zfcp_ccw_adapter_ref_lock, flags);
}
-static int zfcp_ccw_activate(struct ccw_device *cdev)
-
+/**
+ * zfcp_ccw_activate - activate adapter and wait for it to finish
+ * @cdev: pointer to belonging ccw device
+ * @clear: Status flags to clear.
+ * @tag: s390dbf trace record tag
+ */
+static int zfcp_ccw_activate(struct ccw_device *cdev, int clear, char *tag)
{
struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
if (!adapter)
return 0;
+ zfcp_erp_clear_adapter_status(adapter, clear);
zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
- "ccresu2", NULL);
+ tag);
zfcp_erp_wait(adapter);
- flush_work(&adapter->scan_work);
+ flush_work(&adapter->scan_work); /* ok to call even if nothing queued */
zfcp_ccw_adapter_put(adapter);
@@ -65,15 +72,6 @@ static struct ccw_device_id zfcp_ccw_device_id[] = {
MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
/**
- * zfcp_ccw_priv_sch - check if subchannel is privileged
- * @adapter: Adapter/Subchannel to check
- */
-int zfcp_ccw_priv_sch(struct zfcp_adapter *adapter)
-{
- return adapter->ccw_device->id.dev_model == ZFCP_MODEL_PRIV;
-}
-
-/**
* zfcp_ccw_probe - probe function of zfcp driver
* @cdev: pointer to belonging ccw device
*
@@ -122,10 +120,10 @@ static void zfcp_ccw_remove(struct ccw_device *cdev)
zfcp_ccw_adapter_put(adapter); /* put from zfcp_ccw_adapter_by_cdev */
list_for_each_entry_safe(unit, u, &unit_remove_lh, list)
- zfcp_device_unregister(&unit->dev, &zfcp_sysfs_unit_attrs);
+ device_unregister(&unit->dev);
list_for_each_entry_safe(port, p, &port_remove_lh, list)
- zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
+ device_unregister(&port->dev);
zfcp_adapter_unregister(adapter);
}
@@ -163,26 +161,34 @@ static int zfcp_ccw_set_online(struct ccw_device *cdev)
BUG_ON(!zfcp_reqlist_isempty(adapter->req_list));
adapter->req_no = 0;
- zfcp_ccw_activate(cdev);
+ zfcp_ccw_activate(cdev, 0, "ccsonl1");
+ /* scan for remote ports
+ either at the end of any successful adapter recovery
+ or only after the adapter recovery for setting a device online */
+ zfcp_fc_inverse_conditional_port_scan(adapter);
+ flush_work(&adapter->scan_work); /* ok to call even if nothing queued */
zfcp_ccw_adapter_put(adapter);
return 0;
}
/**
- * zfcp_ccw_set_offline - set_offline function of zfcp driver
+ * zfcp_ccw_offline_sync - shut down adapter and wait for it to finish
* @cdev: pointer to belonging ccw device
+ * @set: Status flags to set.
+ * @tag: s390dbf trace record tag
*
* This function gets called by the common i/o layer and sets an adapter
* into state offline.
*/
-static int zfcp_ccw_set_offline(struct ccw_device *cdev)
+static int zfcp_ccw_offline_sync(struct ccw_device *cdev, int set, char *tag)
{
struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
if (!adapter)
return 0;
- zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL);
+ zfcp_erp_set_adapter_status(adapter, set);
+ zfcp_erp_adapter_shutdown(adapter, 0, tag);
zfcp_erp_wait(adapter);
zfcp_ccw_adapter_put(adapter);
@@ -190,6 +196,18 @@ static int zfcp_ccw_set_offline(struct ccw_device *cdev)
}
/**
+ * zfcp_ccw_set_offline - set_offline function of zfcp driver
+ * @cdev: pointer to belonging ccw device
+ *
+ * This function gets called by the common i/o layer and sets an adapter
+ * into state offline.
+ */
+static int zfcp_ccw_set_offline(struct ccw_device *cdev)
+{
+ return zfcp_ccw_offline_sync(cdev, 0, "ccsoff1");
+}
+
+/**
* zfcp_ccw_notify - ccw notify function
* @cdev: pointer to belonging ccw device
* @event: indicates if adapter was detached or attached
@@ -206,25 +224,35 @@ static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
switch (event) {
case CIO_GONE:
+ if (atomic_read(&adapter->status) &
+ ZFCP_STATUS_ADAPTER_SUSPENDED) { /* notification ignore */
+ zfcp_dbf_hba_basic("ccnigo1", adapter);
+ break;
+ }
dev_warn(&cdev->dev, "The FCP device has been detached\n");
- zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1", NULL);
+ zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1");
break;
case CIO_NO_PATH:
dev_warn(&cdev->dev,
"The CHPID for the FCP device is offline\n");
- zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2", NULL);
+ zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2");
break;
case CIO_OPER:
+ if (atomic_read(&adapter->status) &
+ ZFCP_STATUS_ADAPTER_SUSPENDED) { /* notification ignore */
+ zfcp_dbf_hba_basic("ccniop1", adapter);
+ break;
+ }
dev_info(&cdev->dev, "The FCP device is operational again\n");
zfcp_erp_set_adapter_status(adapter,
ZFCP_STATUS_COMMON_RUNNING);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
- "ccnoti4", NULL);
+ "ccnoti4");
break;
case CIO_BOXED:
dev_warn(&cdev->dev, "The FCP device did not respond within "
"the specified time\n");
- zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5", NULL);
+ zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5");
break;
}
@@ -243,16 +271,40 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
if (!adapter)
return;
- zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL);
+ zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1");
zfcp_erp_wait(adapter);
zfcp_erp_thread_kill(adapter);
zfcp_ccw_adapter_put(adapter);
}
+static int zfcp_ccw_suspend(struct ccw_device *cdev)
+{
+ zfcp_ccw_offline_sync(cdev, ZFCP_STATUS_ADAPTER_SUSPENDED, "ccsusp1");
+ return 0;
+}
+
+static int zfcp_ccw_thaw(struct ccw_device *cdev)
+{
+ /* trace records for thaw and final shutdown during suspend
+ can only be found in system dump until the end of suspend
+ but not after resume because it's based on the memory image
+ right after the very first suspend (freeze) callback */
+ zfcp_ccw_activate(cdev, 0, "ccthaw1");
+ return 0;
+}
+
+static int zfcp_ccw_resume(struct ccw_device *cdev)
+{
+ zfcp_ccw_activate(cdev, ZFCP_STATUS_ADAPTER_SUSPENDED, "ccresu1");
+ return 0;
+}
+
struct ccw_driver zfcp_ccw_driver = {
- .owner = THIS_MODULE,
- .name = "zfcp",
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "zfcp",
+ },
.ids = zfcp_ccw_device_id,
.probe = zfcp_ccw_probe,
.remove = zfcp_ccw_remove,
@@ -260,7 +312,7 @@ struct ccw_driver zfcp_ccw_driver = {
.set_offline = zfcp_ccw_set_offline,
.notify = zfcp_ccw_notify,
.shutdown = zfcp_ccw_shutdown,
- .freeze = zfcp_ccw_set_offline,
- .thaw = zfcp_ccw_activate,
- .restore = zfcp_ccw_activate,
+ .freeze = zfcp_ccw_suspend,
+ .thaw = zfcp_ccw_thaw,
+ .restore = zfcp_ccw_resume,
};
diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
deleted file mode 100644
index d692e229ecb..00000000000
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ /dev/null
@@ -1,445 +0,0 @@
-/*
- * zfcp device driver
- *
- * Userspace interface for accessing the
- * Access Control Lists / Control File Data Channel;
- * handling of response code and states for ports and LUNs.
- *
- * Copyright IBM Corporation 2008, 2010
- */
-
-#define KMSG_COMPONENT "zfcp"
-#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
-
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/miscdevice.h>
-#include <asm/compat.h>
-#include <asm/ccwdev.h>
-#include "zfcp_def.h"
-#include "zfcp_ext.h"
-#include "zfcp_fsf.h"
-
-#define ZFCP_CFDC_CMND_DOWNLOAD_NORMAL 0x00010001
-#define ZFCP_CFDC_CMND_DOWNLOAD_FORCE 0x00010101
-#define ZFCP_CFDC_CMND_FULL_ACCESS 0x00000201
-#define ZFCP_CFDC_CMND_RESTRICTED_ACCESS 0x00000401
-#define ZFCP_CFDC_CMND_UPLOAD 0x00010002
-
-#define ZFCP_CFDC_DOWNLOAD 0x00000001
-#define ZFCP_CFDC_UPLOAD 0x00000002
-#define ZFCP_CFDC_WITH_CONTROL_FILE 0x00010000
-
-#define ZFCP_CFDC_IOC_MAGIC 0xDD
-#define ZFCP_CFDC_IOC \
- _IOWR(ZFCP_CFDC_IOC_MAGIC, 0, struct zfcp_cfdc_data)
-
-/**
- * struct zfcp_cfdc_data - data for ioctl cfdc interface
- * @signature: request signature
- * @devno: FCP adapter device number
- * @command: command code
- * @fsf_status: returns status of FSF command to userspace
- * @fsf_status_qual: returned to userspace
- * @payloads: access conflicts list
- * @control_file: access control table
- */
-struct zfcp_cfdc_data {
- u32 signature;
- u32 devno;
- u32 command;
- u32 fsf_status;
- u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
- u8 payloads[256];
- u8 control_file[0];
-};
-
-static int zfcp_cfdc_copy_from_user(struct scatterlist *sg,
- void __user *user_buffer)
-{
- unsigned int length;
- unsigned int size = ZFCP_CFDC_MAX_SIZE;
-
- while (size) {
- length = min((unsigned int)size, sg->length);
- if (copy_from_user(sg_virt(sg++), user_buffer, length))
- return -EFAULT;
- user_buffer += length;
- size -= length;
- }
- return 0;
-}
-
-static int zfcp_cfdc_copy_to_user(void __user *user_buffer,
- struct scatterlist *sg)
-{
- unsigned int length;
- unsigned int size = ZFCP_CFDC_MAX_SIZE;
-
- while (size) {
- length = min((unsigned int) size, sg->length);
- if (copy_to_user(user_buffer, sg_virt(sg++), length))
- return -EFAULT;
- user_buffer += length;
- size -= length;
- }
- return 0;
-}
-
-static struct zfcp_adapter *zfcp_cfdc_get_adapter(u32 devno)
-{
- char busid[9];
- struct ccw_device *cdev;
- struct zfcp_adapter *adapter;
-
- snprintf(busid, sizeof(busid), "0.0.%04x", devno);
- cdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
- if (!cdev)
- return NULL;
-
- adapter = zfcp_ccw_adapter_by_cdev(cdev);
-
- put_device(&cdev->dev);
- return adapter;
-}
-
-static int zfcp_cfdc_set_fsf(struct zfcp_fsf_cfdc *fsf_cfdc, int command)
-{
- switch (command) {
- case ZFCP_CFDC_CMND_DOWNLOAD_NORMAL:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_NORMAL_MODE;
- break;
- case ZFCP_CFDC_CMND_DOWNLOAD_FORCE:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_FORCE;
- break;
- case ZFCP_CFDC_CMND_FULL_ACCESS:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_FULL_ACCESS;
- break;
- case ZFCP_CFDC_CMND_RESTRICTED_ACCESS:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_RESTRICTED_ACCESS;
- break;
- case ZFCP_CFDC_CMND_UPLOAD:
- fsf_cfdc->command = FSF_QTCB_UPLOAD_CONTROL_FILE;
- fsf_cfdc->option = 0;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int zfcp_cfdc_sg_setup(int command, struct scatterlist *sg,
- u8 __user *control_file)
-{
- int retval;
- retval = zfcp_sg_setup_table(sg, ZFCP_CFDC_PAGES);
- if (retval)
- return retval;
-
- sg[ZFCP_CFDC_PAGES - 1].length = ZFCP_CFDC_MAX_SIZE % PAGE_SIZE;
-
- if (command & ZFCP_CFDC_WITH_CONTROL_FILE &&
- command & ZFCP_CFDC_DOWNLOAD) {
- retval = zfcp_cfdc_copy_from_user(sg, control_file);
- if (retval) {
- zfcp_sg_free_table(sg, ZFCP_CFDC_PAGES);
- return -EFAULT;
- }
- }
-
- return 0;
-}
-
-static void zfcp_cfdc_req_to_sense(struct zfcp_cfdc_data *data,
- struct zfcp_fsf_req *req)
-{
- data->fsf_status = req->qtcb->header.fsf_status;
- memcpy(&data->fsf_status_qual, &req->qtcb->header.fsf_status_qual,
- sizeof(union fsf_status_qual));
- memcpy(&data->payloads, &req->qtcb->bottom.support.els,
- sizeof(req->qtcb->bottom.support.els));
-}
-
-static long zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
- unsigned long arg)
-{
- struct zfcp_cfdc_data *data;
- struct zfcp_cfdc_data __user *data_user;
- struct zfcp_adapter *adapter;
- struct zfcp_fsf_req *req;
- struct zfcp_fsf_cfdc *fsf_cfdc;
- int retval;
-
- if (command != ZFCP_CFDC_IOC)
- return -ENOTTY;
-
- if (is_compat_task())
- data_user = compat_ptr(arg);
- else
- data_user = (void __user *)arg;
-
- if (!data_user)
- return -EINVAL;
-
- fsf_cfdc = kmalloc(sizeof(struct zfcp_fsf_cfdc), GFP_KERNEL);
- if (!fsf_cfdc)
- return -ENOMEM;
-
- data = memdup_user(data_user, sizeof(*data_user));
- if (IS_ERR(data)) {
- retval = PTR_ERR(data);
- goto no_mem_sense;
- }
-
- if (data->signature != 0xCFDCACDF) {
- retval = -EINVAL;
- goto free_buffer;
- }
-
- retval = zfcp_cfdc_set_fsf(fsf_cfdc, data->command);
-
- adapter = zfcp_cfdc_get_adapter(data->devno);
- if (!adapter) {
- retval = -ENXIO;
- goto free_buffer;
- }
-
- retval = zfcp_cfdc_sg_setup(data->command, fsf_cfdc->sg,
- data_user->control_file);
- if (retval)
- goto adapter_put;
- req = zfcp_fsf_control_file(adapter, fsf_cfdc);
- if (IS_ERR(req)) {
- retval = PTR_ERR(req);
- goto free_sg;
- }
-
- if (req->status & ZFCP_STATUS_FSFREQ_ERROR) {
- retval = -ENXIO;
- goto free_fsf;
- }
-
- zfcp_cfdc_req_to_sense(data, req);
- retval = copy_to_user(data_user, data, sizeof(*data_user));
- if (retval) {
- retval = -EFAULT;
- goto free_fsf;
- }
-
- if (data->command & ZFCP_CFDC_UPLOAD)
- retval = zfcp_cfdc_copy_to_user(&data_user->control_file,
- fsf_cfdc->sg);
-
- free_fsf:
- zfcp_fsf_req_free(req);
- free_sg:
- zfcp_sg_free_table(fsf_cfdc->sg, ZFCP_CFDC_PAGES);
- adapter_put:
- zfcp_ccw_adapter_put(adapter);
- free_buffer:
- kfree(data);
- no_mem_sense:
- kfree(fsf_cfdc);
- return retval;
-}
-
-static const struct file_operations zfcp_cfdc_fops = {
- .open = nonseekable_open,
- .unlocked_ioctl = zfcp_cfdc_dev_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = zfcp_cfdc_dev_ioctl,
-#endif
- .llseek = no_llseek,
-};
-
-struct miscdevice zfcp_cfdc_misc = {
- .minor = MISC_DYNAMIC_MINOR,
- .name = "zfcp_cfdc",
- .fops = &zfcp_cfdc_fops,
-};
-
-/**
- * zfcp_cfdc_adapter_access_changed - Process change in adapter ACT
- * @adapter: Adapter where the Access Control Table (ACT) changed
- *
- * After a change in the adapter ACT, check if access to any
- * previously denied resources is now possible.
- */
-void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *adapter)
-{
- unsigned long flags;
- struct zfcp_port *port;
- struct scsi_device *sdev;
- struct zfcp_scsi_dev *zfcp_sdev;
- int status;
-
- if (adapter->connection_features & FSF_FEATURE_NPIV_MODE)
- return;
-
- read_lock_irqsave(&adapter->port_list_lock, flags);
- list_for_each_entry(port, &adapter->port_list, list) {
- status = atomic_read(&port->status);
- if ((status & ZFCP_STATUS_COMMON_ACCESS_DENIED) ||
- (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
- zfcp_erp_port_reopen(port,
- ZFCP_STATUS_COMMON_ERP_FAILED,
- "cfaac_1", NULL);
- }
- read_unlock_irqrestore(&adapter->port_list_lock, flags);
-
- shost_for_each_device(sdev, port->adapter->scsi_host) {
- zfcp_sdev = sdev_to_zfcp(sdev);
- status = atomic_read(&zfcp_sdev->status);
- if ((status & ZFCP_STATUS_COMMON_ACCESS_DENIED) ||
- (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
- zfcp_erp_lun_reopen(sdev,
- ZFCP_STATUS_COMMON_ERP_FAILED,
- "cfaac_2", NULL);
- }
-}
-
-static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table)
-{
- u16 subtable = table >> 16;
- u16 rule = table & 0xffff;
- const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" };
-
- if (subtable && subtable < ARRAY_SIZE(act_type))
- dev_warn(&adapter->ccw_device->dev,
- "Access denied according to ACT rule type %s, "
- "rule %d\n", act_type[subtable], rule);
-}
-
-/**
- * zfcp_cfdc_port_denied - Process "access denied" for port
- * @port: The port where the acces has been denied
- * @qual: The FSF status qualifier for the access denied FSF status
- */
-void zfcp_cfdc_port_denied(struct zfcp_port *port,
- union fsf_status_qual *qual)
-{
- dev_warn(&port->adapter->ccw_device->dev,
- "Access denied to port 0x%016Lx\n",
- (unsigned long long)port->wwpn);
-
- zfcp_act_eval_err(port->adapter, qual->halfword[0]);
- zfcp_act_eval_err(port->adapter, qual->halfword[1]);
- zfcp_erp_set_port_status(port,
- ZFCP_STATUS_COMMON_ERP_FAILED |
- ZFCP_STATUS_COMMON_ACCESS_DENIED);
-}
-
-/**
- * zfcp_cfdc_lun_denied - Process "access denied" for LUN
- * @sdev: The SCSI device / LUN where the access has been denied
- * @qual: The FSF status qualifier for the access denied FSF status
- */
-void zfcp_cfdc_lun_denied(struct scsi_device *sdev,
- union fsf_status_qual *qual)
-{
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
-
- dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
- "Access denied to LUN 0x%016Lx on port 0x%016Lx\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->halfword[0]);
- zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->halfword[1]);
- zfcp_erp_set_lun_status(sdev,
- ZFCP_STATUS_COMMON_ERP_FAILED |
- ZFCP_STATUS_COMMON_ACCESS_DENIED);
-
- atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
- atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
-}
-
-/**
- * zfcp_cfdc_lun_shrng_vltn - Evaluate LUN sharing violation status
- * @sdev: The LUN / SCSI device where sharing violation occurred
- * @qual: The FSF status qualifier from the LUN sharing violation
- */
-void zfcp_cfdc_lun_shrng_vltn(struct scsi_device *sdev,
- union fsf_status_qual *qual)
-{
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
-
- if (qual->word[0])
- dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
- "LUN 0x%Lx on port 0x%Lx is already in "
- "use by CSS%d, MIF Image ID %x\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn,
- qual->fsf_queue_designator.cssid,
- qual->fsf_queue_designator.hla);
- else
- zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->word[2]);
-
- zfcp_erp_set_lun_status(sdev,
- ZFCP_STATUS_COMMON_ERP_FAILED |
- ZFCP_STATUS_COMMON_ACCESS_DENIED);
- atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
- atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
-}
-
-/**
- * zfcp_cfdc_open_lun_eval - Eval access ctrl. status for successful "open lun"
- * @sdev: The SCSI device / LUN where to evaluate the status
- * @bottom: The qtcb bottom with the status from the "open lun"
- *
- * Returns: 0 if LUN is usable, -EACCES if the access control table
- * reports an unsupported configuration.
- */
-int zfcp_cfdc_open_lun_eval(struct scsi_device *sdev,
- struct fsf_qtcb_bottom_support *bottom)
-{
- int shared, rw;
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
- struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
-
- if ((adapter->connection_features & FSF_FEATURE_NPIV_MODE) ||
- !(adapter->adapter_features & FSF_FEATURE_LUN_SHARING) ||
- zfcp_ccw_priv_sch(adapter))
- return 0;
-
- shared = !(bottom->lun_access_info & FSF_UNIT_ACCESS_EXCLUSIVE);
- rw = (bottom->lun_access_info & FSF_UNIT_ACCESS_OUTBOUND_TRANSFER);
-
- if (shared)
- atomic_set_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
-
- if (!rw) {
- atomic_set_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
- dev_info(&adapter->ccw_device->dev, "SCSI device at LUN "
- "0x%016Lx on port 0x%016Lx opened read-only\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- }
-
- if (!shared && !rw) {
- dev_err(&adapter->ccw_device->dev, "Exclusive read-only access "
- "not supported (LUN 0x%016Lx, port 0x%016Lx)\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED);
- zfcp_erp_lun_shutdown(sdev, 0, "fsouh_6", NULL);
- return -EACCES;
- }
-
- if (shared && rw) {
- dev_err(&adapter->ccw_device->dev,
- "Shared read-write access not supported "
- "(LUN 0x%016Lx, port 0x%016Lx)\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED);
- zfcp_erp_lun_shutdown(sdev, 0, "fsosh_8", NULL);
- return -EACCES;
- }
-
- return 0;
-}
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 2cdd6b28ff7..0ca64484cfa 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -3,12 +3,13 @@
*
* Debug traces for zfcp.
*
- * Copyright IBM Corporation 2002, 2009
+ * Copyright IBM Corp. 2002, 2013
*/
#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <asm/debug.h>
@@ -22,980 +23,455 @@ module_param(dbfsize, uint, 0400);
MODULE_PARM_DESC(dbfsize,
"number of pages for each debug feature area (default 4)");
-static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
- int level, char *from, int from_len)
-{
- int offset;
- struct zfcp_dbf_dump *dump = to;
- int room = to_len - sizeof(*dump);
-
- for (offset = 0; offset < from_len; offset += dump->size) {
- memset(to, 0, to_len);
- strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
- dump->total_size = from_len;
- dump->offset = offset;
- dump->size = min(from_len - offset, room);
- memcpy(dump->data, from + offset, dump->size);
- debug_event(dbf, level, dump, dump->size + sizeof(*dump));
- }
-}
+static u32 dbflevel = 3;
-static void zfcp_dbf_tag(char **p, const char *label, const char *tag)
-{
- int i;
-
- *p += sprintf(*p, "%-24s", label);
- for (i = 0; i < ZFCP_DBF_TAG_SIZE; i++)
- *p += sprintf(*p, "%c", tag[i]);
- *p += sprintf(*p, "\n");
-}
+module_param(dbflevel, uint, 0400);
+MODULE_PARM_DESC(dbflevel,
+ "log level for each debug feature area "
+ "(default 3, range 0..6)");
-static void zfcp_dbf_outs(char **buf, const char *s1, const char *s2)
+static inline unsigned int zfcp_dbf_plen(unsigned int offset)
{
- *buf += sprintf(*buf, "%-24s%s\n", s1, s2);
+ return sizeof(struct zfcp_dbf_pay) + offset - ZFCP_DBF_PAY_MAX_REC;
}
-static void zfcp_dbf_out(char **buf, const char *s, const char *format, ...)
+static inline
+void zfcp_dbf_pl_write(struct zfcp_dbf *dbf, void *data, u16 length, char *area,
+ u64 req_id)
{
- va_list arg;
+ struct zfcp_dbf_pay *pl = &dbf->pay_buf;
+ u16 offset = 0, rec_length;
- *buf += sprintf(*buf, "%-24s", s);
- va_start(arg, format);
- *buf += vsprintf(*buf, format, arg);
- va_end(arg);
- *buf += sprintf(*buf, "\n");
-}
+ spin_lock(&dbf->pay_lock);
+ memset(pl, 0, sizeof(*pl));
+ pl->fsf_req_id = req_id;
+ memcpy(pl->area, area, ZFCP_DBF_TAG_LEN);
-static void zfcp_dbf_outd(char **p, const char *label, char *buffer,
- int buflen, int offset, int total_size)
-{
- if (!offset)
- *p += sprintf(*p, "%-24s ", label);
- while (buflen--) {
- if (offset > 0) {
- if ((offset % 32) == 0)
- *p += sprintf(*p, "\n%-24c ", ' ');
- else if ((offset % 4) == 0)
- *p += sprintf(*p, " ");
- }
- *p += sprintf(*p, "%02x", *buffer++);
- if (++offset == total_size) {
- *p += sprintf(*p, "\n");
- break;
- }
- }
- if (!total_size)
- *p += sprintf(*p, "\n");
-}
+ while (offset < length) {
+ rec_length = min((u16) ZFCP_DBF_PAY_MAX_REC,
+ (u16) (length - offset));
+ memcpy(pl->data, data + offset, rec_length);
+ debug_event(dbf->pay, 1, pl, zfcp_dbf_plen(rec_length));
-static int zfcp_dbf_view_header(debug_info_t *id, struct debug_view *view,
- int area, debug_entry_t *entry, char *out_buf)
-{
- struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry);
- struct timespec t;
- char *p = out_buf;
-
- if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
- stck_to_timespec(entry->id.stck, &t);
- zfcp_dbf_out(&p, "timestamp", "%011lu:%06lu",
- t.tv_sec, t.tv_nsec);
- zfcp_dbf_out(&p, "cpu", "%02i", entry->id.fields.cpuid);
- } else {
- zfcp_dbf_outd(&p, "", dump->data, dump->size, dump->offset,
- dump->total_size);
- if ((dump->offset + dump->size) == dump->total_size)
- p += sprintf(p, "\n");
+ offset += rec_length;
+ pl->counter++;
}
- return p - out_buf;
+
+ spin_unlock(&dbf->pay_lock);
}
-void _zfcp_dbf_hba_fsf_response(const char *tag2, int level,
- struct zfcp_fsf_req *fsf_req,
- struct zfcp_dbf *dbf)
+/**
+ * zfcp_dbf_hba_fsf_res - trace event for fsf responses
+ * @tag: tag indicating which kind of unsolicited status has been received
+ * @req: request for which a response was received
+ */
+void zfcp_dbf_hba_fsf_res(char *tag, struct zfcp_fsf_req *req)
{
- struct fsf_qtcb *qtcb = fsf_req->qtcb;
- union fsf_prot_status_qual *prot_status_qual =
- &qtcb->prefix.prot_status_qual;
- union fsf_status_qual *fsf_status_qual = &qtcb->header.fsf_status_qual;
- struct scsi_cmnd *scsi_cmnd;
- struct zfcp_port *port;
- struct zfcp_unit *unit;
- struct zfcp_send_els *send_els;
- struct zfcp_dbf_hba_record *rec = &dbf->hba_buf;
- struct zfcp_dbf_hba_record_response *response = &rec->u.response;
+ struct zfcp_dbf *dbf = req->adapter->dbf;
+ struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
+ struct fsf_qtcb_header *q_head = &req->qtcb->header;
+ struct zfcp_dbf_hba *rec = &dbf->hba_buf;
unsigned long flags;
spin_lock_irqsave(&dbf->hba_lock, flags);
memset(rec, 0, sizeof(*rec));
- strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE);
- strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
-
- response->fsf_command = fsf_req->fsf_command;
- response->fsf_reqid = fsf_req->req_id;
- response->fsf_seqno = fsf_req->seq_no;
- response->fsf_issued = fsf_req->issued;
- response->fsf_prot_status = qtcb->prefix.prot_status;
- response->fsf_status = qtcb->header.fsf_status;
- memcpy(response->fsf_prot_status_qual,
- prot_status_qual, FSF_PROT_STATUS_QUAL_SIZE);
- memcpy(response->fsf_status_qual,
- fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE);
- response->fsf_req_status = fsf_req->status;
- response->sbal_first = fsf_req->qdio_req.sbal_first;
- response->sbal_last = fsf_req->qdio_req.sbal_last;
- response->sbal_response = fsf_req->qdio_req.sbal_response;
- response->pool = fsf_req->pool != NULL;
- response->erp_action = (unsigned long)fsf_req->erp_action;
-
- switch (fsf_req->fsf_command) {
- case FSF_QTCB_FCP_CMND:
- if (fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
- break;
- scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
- if (scsi_cmnd) {
- response->u.fcp.cmnd = (unsigned long)scsi_cmnd;
- response->u.fcp.data_dir =
- qtcb->bottom.io.data_direction;
- }
- break;
-
- case FSF_QTCB_OPEN_PORT_WITH_DID:
- case FSF_QTCB_CLOSE_PORT:
- case FSF_QTCB_CLOSE_PHYSICAL_PORT:
- port = (struct zfcp_port *)fsf_req->data;
- response->u.port.wwpn = port->wwpn;
- response->u.port.d_id = port->d_id;
- response->u.port.port_handle = qtcb->header.port_handle;
- break;
-
- case FSF_QTCB_OPEN_LUN:
- case FSF_QTCB_CLOSE_LUN:
- unit = (struct zfcp_unit *)fsf_req->data;
- port = unit->port;
- response->u.unit.wwpn = port->wwpn;
- response->u.unit.fcp_lun = unit->fcp_lun;
- response->u.unit.port_handle = qtcb->header.port_handle;
- response->u.unit.lun_handle = qtcb->header.lun_handle;
- break;
-
- case FSF_QTCB_SEND_ELS:
- send_els = (struct zfcp_send_els *)fsf_req->data;
- response->u.els.d_id = ntoh24(qtcb->bottom.support.d_id);
- break;
-
- case FSF_QTCB_ABORT_FCP_CMND:
- case FSF_QTCB_SEND_GENERIC:
- case FSF_QTCB_EXCHANGE_CONFIG_DATA:
- case FSF_QTCB_EXCHANGE_PORT_DATA:
- case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
- case FSF_QTCB_UPLOAD_CONTROL_FILE:
- break;
- }
-
- debug_event(dbf->hba, level, rec, sizeof(*rec));
- /* have fcp channel microcode fixed to use as little as possible */
- if (fsf_req->fsf_command != FSF_QTCB_FCP_CMND) {
- /* adjust length skipping trailing zeros */
- char *buf = (char *)qtcb + qtcb->header.log_start;
- int len = qtcb->header.log_length;
- for (; len && !buf[len - 1]; len--);
- zfcp_dbf_hexdump(dbf->hba, rec, sizeof(*rec), level, buf,
- len);
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->id = ZFCP_DBF_HBA_RES;
+ rec->fsf_req_id = req->req_id;
+ rec->fsf_req_status = req->status;
+ rec->fsf_cmd = req->fsf_command;
+ rec->fsf_seq_no = req->seq_no;
+ rec->u.res.req_issued = req->issued;
+ rec->u.res.prot_status = q_pref->prot_status;
+ rec->u.res.fsf_status = q_head->fsf_status;
+
+ memcpy(rec->u.res.prot_status_qual, &q_pref->prot_status_qual,
+ FSF_PROT_STATUS_QUAL_SIZE);
+ memcpy(rec->u.res.fsf_status_qual, &q_head->fsf_status_qual,
+ FSF_STATUS_QUALIFIER_SIZE);
+
+ if (req->fsf_command != FSF_QTCB_FCP_CMND) {
+ rec->pl_len = q_head->log_length;
+ zfcp_dbf_pl_write(dbf, (char *)q_pref + q_head->log_start,
+ rec->pl_len, "fsf_res", req->req_id);
}
+ debug_event(dbf->hba, 1, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->hba_lock, flags);
}
-void _zfcp_dbf_hba_fsf_unsol(const char *tag, int level, struct zfcp_dbf *dbf,
- struct fsf_status_read_buffer *status_buffer)
+/**
+ * zfcp_dbf_hba_fsf_uss - trace event for an unsolicited status buffer
+ * @tag: tag indicating which kind of unsolicited status has been received
+ * @req: request providing the unsolicited status
+ */
+void zfcp_dbf_hba_fsf_uss(char *tag, struct zfcp_fsf_req *req)
{
- struct zfcp_dbf_hba_record *rec = &dbf->hba_buf;
+ struct zfcp_dbf *dbf = req->adapter->dbf;
+ struct fsf_status_read_buffer *srb = req->data;
+ struct zfcp_dbf_hba *rec = &dbf->hba_buf;
unsigned long flags;
spin_lock_irqsave(&dbf->hba_lock, flags);
memset(rec, 0, sizeof(*rec));
- strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE);
- strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE);
-
- rec->u.status.failed = atomic_read(&dbf->adapter->stat_miss);
- if (status_buffer != NULL) {
- rec->u.status.status_type = status_buffer->status_type;
- rec->u.status.status_subtype = status_buffer->status_subtype;
- memcpy(&rec->u.status.queue_designator,
- &status_buffer->queue_designator,
- sizeof(struct fsf_queue_designator));
-
- switch (status_buffer->status_type) {
- case FSF_STATUS_READ_SENSE_DATA_AVAIL:
- rec->u.status.payload_size =
- ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL;
- break;
-
- case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
- rec->u.status.payload_size =
- ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD;
- break;
-
- case FSF_STATUS_READ_LINK_DOWN:
- switch (status_buffer->status_subtype) {
- case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
- case FSF_STATUS_READ_SUB_FDISC_FAILED:
- rec->u.status.payload_size =
- sizeof(struct fsf_link_down_info);
- }
- break;
-
- case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
- rec->u.status.payload_size =
- ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT;
- break;
- }
- memcpy(&rec->u.status.payload,
- &status_buffer->payload, rec->u.status.payload_size);
- }
- debug_event(dbf->hba, level, rec, sizeof(*rec));
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->id = ZFCP_DBF_HBA_USS;
+ rec->fsf_req_id = req->req_id;
+ rec->fsf_req_status = req->status;
+ rec->fsf_cmd = req->fsf_command;
+
+ if (!srb)
+ goto log;
+
+ rec->u.uss.status_type = srb->status_type;
+ rec->u.uss.status_subtype = srb->status_subtype;
+ rec->u.uss.d_id = ntoh24(srb->d_id);
+ rec->u.uss.lun = srb->fcp_lun;
+ memcpy(&rec->u.uss.queue_designator, &srb->queue_designator,
+ sizeof(rec->u.uss.queue_designator));
+
+ /* status read buffer payload length */
+ rec->pl_len = (!srb->length) ? 0 : srb->length -
+ offsetof(struct fsf_status_read_buffer, payload);
+
+ if (rec->pl_len)
+ zfcp_dbf_pl_write(dbf, srb->payload.data, rec->pl_len,
+ "fsf_uss", req->req_id);
+log:
+ debug_event(dbf->hba, 2, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->hba_lock, flags);
}
/**
- * zfcp_dbf_hba_qdio - trace event for QDIO related failure
- * @qdio: qdio structure affected by this QDIO related event
- * @qdio_error: as passed by qdio module
- * @sbal_index: first buffer with error condition, as passed by qdio module
- * @sbal_count: number of buffers affected, as passed by qdio module
+ * zfcp_dbf_hba_bit_err - trace event for bit error conditions
+ * @tag: tag indicating which kind of unsolicited status has been received
+ * @req: request which caused the bit_error condition
*/
-void zfcp_dbf_hba_qdio(struct zfcp_dbf *dbf, unsigned int qdio_error,
- int sbal_index, int sbal_count)
+void zfcp_dbf_hba_bit_err(char *tag, struct zfcp_fsf_req *req)
{
- struct zfcp_dbf_hba_record *r = &dbf->hba_buf;
+ struct zfcp_dbf *dbf = req->adapter->dbf;
+ struct zfcp_dbf_hba *rec = &dbf->hba_buf;
+ struct fsf_status_read_buffer *sr_buf = req->data;
unsigned long flags;
spin_lock_irqsave(&dbf->hba_lock, flags);
- memset(r, 0, sizeof(*r));
- strncpy(r->tag, "qdio", ZFCP_DBF_TAG_SIZE);
- r->u.qdio.qdio_error = qdio_error;
- r->u.qdio.sbal_index = sbal_index;
- r->u.qdio.sbal_count = sbal_count;
- debug_event(dbf->hba, 0, r, sizeof(*r));
+ memset(rec, 0, sizeof(*rec));
+
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->id = ZFCP_DBF_HBA_BIT;
+ rec->fsf_req_id = req->req_id;
+ rec->fsf_req_status = req->status;
+ rec->fsf_cmd = req->fsf_command;
+ memcpy(&rec->u.be, &sr_buf->payload.bit_error,
+ sizeof(struct fsf_bit_error_payload));
+
+ debug_event(dbf->hba, 1, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->hba_lock, flags);
}
/**
- * zfcp_dbf_hba_berr - trace event for bit error threshold
- * @dbf: dbf structure affected by this QDIO related event
- * @req: fsf request
+ * zfcp_dbf_hba_def_err - trace event for deferred error messages
+ * @adapter: pointer to struct zfcp_adapter
+ * @req_id: request id which caused the deferred error message
+ * @scount: number of sbals incl. the signaling sbal
+ * @pl: array of all involved sbals
*/
-void zfcp_dbf_hba_berr(struct zfcp_dbf *dbf, struct zfcp_fsf_req *req)
+void zfcp_dbf_hba_def_err(struct zfcp_adapter *adapter, u64 req_id, u16 scount,
+ void **pl)
{
- struct zfcp_dbf_hba_record *r = &dbf->hba_buf;
- struct fsf_status_read_buffer *sr_buf = req->data;
- struct fsf_bit_error_payload *err = &sr_buf->payload.bit_error;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_dbf_pay *payload = &dbf->pay_buf;
unsigned long flags;
+ u16 length;
- spin_lock_irqsave(&dbf->hba_lock, flags);
- memset(r, 0, sizeof(*r));
- strncpy(r->tag, "berr", ZFCP_DBF_TAG_SIZE);
- memcpy(&r->u.berr, err, sizeof(struct fsf_bit_error_payload));
- debug_event(dbf->hba, 0, r, sizeof(*r));
- spin_unlock_irqrestore(&dbf->hba_lock, flags);
-}
-static void zfcp_dbf_hba_view_response(char **p,
- struct zfcp_dbf_hba_record_response *r)
-{
- struct timespec t;
-
- zfcp_dbf_out(p, "fsf_command", "0x%08x", r->fsf_command);
- zfcp_dbf_out(p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
- zfcp_dbf_out(p, "fsf_seqno", "0x%08x", r->fsf_seqno);
- stck_to_timespec(r->fsf_issued, &t);
- zfcp_dbf_out(p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
- zfcp_dbf_out(p, "fsf_prot_status", "0x%08x", r->fsf_prot_status);
- zfcp_dbf_out(p, "fsf_status", "0x%08x", r->fsf_status);
- zfcp_dbf_outd(p, "fsf_prot_status_qual", r->fsf_prot_status_qual,
- FSF_PROT_STATUS_QUAL_SIZE, 0, FSF_PROT_STATUS_QUAL_SIZE);
- zfcp_dbf_outd(p, "fsf_status_qual", r->fsf_status_qual,
- FSF_STATUS_QUALIFIER_SIZE, 0, FSF_STATUS_QUALIFIER_SIZE);
- zfcp_dbf_out(p, "fsf_req_status", "0x%08x", r->fsf_req_status);
- zfcp_dbf_out(p, "sbal_first", "0x%02x", r->sbal_first);
- zfcp_dbf_out(p, "sbal_last", "0x%02x", r->sbal_last);
- zfcp_dbf_out(p, "sbal_response", "0x%02x", r->sbal_response);
- zfcp_dbf_out(p, "pool", "0x%02x", r->pool);
-
- switch (r->fsf_command) {
- case FSF_QTCB_FCP_CMND:
- if (r->fsf_req_status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
- break;
- zfcp_dbf_out(p, "data_direction", "0x%04x", r->u.fcp.data_dir);
- zfcp_dbf_out(p, "scsi_cmnd", "0x%0Lx", r->u.fcp.cmnd);
- *p += sprintf(*p, "\n");
- break;
-
- case FSF_QTCB_OPEN_PORT_WITH_DID:
- case FSF_QTCB_CLOSE_PORT:
- case FSF_QTCB_CLOSE_PHYSICAL_PORT:
- zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.port.wwpn);
- zfcp_dbf_out(p, "d_id", "0x%06x", r->u.port.d_id);
- zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.port.port_handle);
- break;
-
- case FSF_QTCB_OPEN_LUN:
- case FSF_QTCB_CLOSE_LUN:
- zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.unit.wwpn);
- zfcp_dbf_out(p, "fcp_lun", "0x%016Lx", r->u.unit.fcp_lun);
- zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.unit.port_handle);
- zfcp_dbf_out(p, "lun_handle", "0x%08x", r->u.unit.lun_handle);
- break;
-
- case FSF_QTCB_SEND_ELS:
- zfcp_dbf_out(p, "d_id", "0x%06x", r->u.els.d_id);
- break;
-
- case FSF_QTCB_ABORT_FCP_CMND:
- case FSF_QTCB_SEND_GENERIC:
- case FSF_QTCB_EXCHANGE_CONFIG_DATA:
- case FSF_QTCB_EXCHANGE_PORT_DATA:
- case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
- case FSF_QTCB_UPLOAD_CONTROL_FILE:
- break;
- }
-}
-
-static void zfcp_dbf_hba_view_status(char **p,
- struct zfcp_dbf_hba_record_status *r)
-{
- zfcp_dbf_out(p, "failed", "0x%02x", r->failed);
- zfcp_dbf_out(p, "status_type", "0x%08x", r->status_type);
- zfcp_dbf_out(p, "status_subtype", "0x%08x", r->status_subtype);
- zfcp_dbf_outd(p, "queue_designator", (char *)&r->queue_designator,
- sizeof(struct fsf_queue_designator), 0,
- sizeof(struct fsf_queue_designator));
- zfcp_dbf_outd(p, "payload", (char *)&r->payload, r->payload_size, 0,
- r->payload_size);
-}
-
-static void zfcp_dbf_hba_view_qdio(char **p, struct zfcp_dbf_hba_record_qdio *r)
-{
- zfcp_dbf_out(p, "qdio_error", "0x%08x", r->qdio_error);
- zfcp_dbf_out(p, "sbal_index", "0x%02x", r->sbal_index);
- zfcp_dbf_out(p, "sbal_count", "0x%02x", r->sbal_count);
-}
+ if (!pl)
+ return;
-static void zfcp_dbf_hba_view_berr(char **p, struct fsf_bit_error_payload *r)
-{
- zfcp_dbf_out(p, "link_failures", "%d", r->link_failure_error_count);
- zfcp_dbf_out(p, "loss_of_sync_err", "%d", r->loss_of_sync_error_count);
- zfcp_dbf_out(p, "loss_of_sig_err", "%d", r->loss_of_signal_error_count);
- zfcp_dbf_out(p, "prim_seq_err", "%d",
- r->primitive_sequence_error_count);
- zfcp_dbf_out(p, "inval_trans_word_err", "%d",
- r->invalid_transmission_word_error_count);
- zfcp_dbf_out(p, "CRC_errors", "%d", r->crc_error_count);
- zfcp_dbf_out(p, "prim_seq_event_to", "%d",
- r->primitive_sequence_event_timeout_count);
- zfcp_dbf_out(p, "elast_buf_overrun_err", "%d",
- r->elastic_buffer_overrun_error_count);
- zfcp_dbf_out(p, "adv_rec_buf2buf_cred", "%d",
- r->advertised_receive_b2b_credit);
- zfcp_dbf_out(p, "curr_rec_buf2buf_cred", "%d",
- r->current_receive_b2b_credit);
- zfcp_dbf_out(p, "adv_trans_buf2buf_cred", "%d",
- r->advertised_transmit_b2b_credit);
- zfcp_dbf_out(p, "curr_trans_buf2buf_cred", "%d",
- r->current_transmit_b2b_credit);
-}
+ spin_lock_irqsave(&dbf->pay_lock, flags);
+ memset(payload, 0, sizeof(*payload));
-static int zfcp_dbf_hba_view_format(debug_info_t *id, struct debug_view *view,
- char *out_buf, const char *in_buf)
-{
- struct zfcp_dbf_hba_record *r = (struct zfcp_dbf_hba_record *)in_buf;
- char *p = out_buf;
-
- if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
- return 0;
-
- zfcp_dbf_tag(&p, "tag", r->tag);
- if (isalpha(r->tag2[0]))
- zfcp_dbf_tag(&p, "tag2", r->tag2);
-
- if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) == 0)
- zfcp_dbf_hba_view_response(&p, &r->u.response);
- else if (strncmp(r->tag, "stat", ZFCP_DBF_TAG_SIZE) == 0)
- zfcp_dbf_hba_view_status(&p, &r->u.status);
- else if (strncmp(r->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
- zfcp_dbf_hba_view_qdio(&p, &r->u.qdio);
- else if (strncmp(r->tag, "berr", ZFCP_DBF_TAG_SIZE) == 0)
- zfcp_dbf_hba_view_berr(&p, &r->u.berr);
-
- if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) != 0)
- p += sprintf(p, "\n");
- return p - out_buf;
-}
+ memcpy(payload->area, "def_err", 7);
+ payload->fsf_req_id = req_id;
+ payload->counter = 0;
+ length = min((u16)sizeof(struct qdio_buffer),
+ (u16)ZFCP_DBF_PAY_MAX_REC);
-static struct debug_view zfcp_dbf_hba_view = {
- .name = "structured",
- .header_proc = zfcp_dbf_view_header,
- .format_proc = zfcp_dbf_hba_view_format,
-};
-
-static const char *zfcp_dbf_rec_tags[] = {
- [ZFCP_REC_DBF_ID_THREAD] = "thread",
- [ZFCP_REC_DBF_ID_TARGET] = "target",
- [ZFCP_REC_DBF_ID_TRIGGER] = "trigger",
- [ZFCP_REC_DBF_ID_ACTION] = "action",
-};
-
-static int zfcp_dbf_rec_view_format(debug_info_t *id, struct debug_view *view,
- char *buf, const char *_rec)
-{
- struct zfcp_dbf_rec_record *r = (struct zfcp_dbf_rec_record *)_rec;
- char *p = buf;
- char hint[ZFCP_DBF_ID_SIZE + 1];
-
- memcpy(hint, r->id2, ZFCP_DBF_ID_SIZE);
- hint[ZFCP_DBF_ID_SIZE] = 0;
- zfcp_dbf_outs(&p, "tag", zfcp_dbf_rec_tags[r->id]);
- zfcp_dbf_outs(&p, "hint", hint);
- switch (r->id) {
- case ZFCP_REC_DBF_ID_THREAD:
- zfcp_dbf_out(&p, "total", "%d", r->u.thread.total);
- zfcp_dbf_out(&p, "ready", "%d", r->u.thread.ready);
- zfcp_dbf_out(&p, "running", "%d", r->u.thread.running);
- break;
- case ZFCP_REC_DBF_ID_TARGET:
- zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.target.ref);
- zfcp_dbf_out(&p, "status", "0x%08x", r->u.target.status);
- zfcp_dbf_out(&p, "erp_count", "%d", r->u.target.erp_count);
- zfcp_dbf_out(&p, "d_id", "0x%06x", r->u.target.d_id);
- zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.target.wwpn);
- zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.target.fcp_lun);
- break;
- case ZFCP_REC_DBF_ID_TRIGGER:
- zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.trigger.ref);
- zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.trigger.action);
- zfcp_dbf_out(&p, "requested", "%d", r->u.trigger.want);
- zfcp_dbf_out(&p, "executed", "%d", r->u.trigger.need);
- zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.trigger.wwpn);
- zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.trigger.fcp_lun);
- zfcp_dbf_out(&p, "adapter_status", "0x%08x", r->u.trigger.as);
- zfcp_dbf_out(&p, "port_status", "0x%08x", r->u.trigger.ps);
- zfcp_dbf_out(&p, "lun_status", "0x%08x", r->u.trigger.ls);
- break;
- case ZFCP_REC_DBF_ID_ACTION:
- zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.action.action);
- zfcp_dbf_out(&p, "fsf_req", "0x%016Lx", r->u.action.fsf_req);
- zfcp_dbf_out(&p, "status", "0x%08Lx", r->u.action.status);
- zfcp_dbf_out(&p, "step", "0x%08Lx", r->u.action.step);
- break;
+ while (payload->counter < scount && (char *)pl[payload->counter]) {
+ memcpy(payload->data, (char *)pl[payload->counter], length);
+ debug_event(dbf->pay, 1, payload, zfcp_dbf_plen(length));
+ payload->counter++;
}
- p += sprintf(p, "\n");
- return p - buf;
-}
-static struct debug_view zfcp_dbf_rec_view = {
- .name = "structured",
- .header_proc = zfcp_dbf_view_header,
- .format_proc = zfcp_dbf_rec_view_format,
-};
-
-/**
- * zfcp_dbf_rec_thread - trace event related to recovery thread operation
- * @id2: identifier for event
- * @dbf: reference to dbf structure
- * This function assumes that the caller is holding erp_lock.
- */
-void zfcp_dbf_rec_thread(char *id2, struct zfcp_dbf *dbf)
-{
- struct zfcp_adapter *adapter = dbf->adapter;
- struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
- unsigned long flags = 0;
- struct list_head *entry;
- unsigned ready = 0, running = 0, total;
-
- list_for_each(entry, &adapter->erp_ready_head)
- ready++;
- list_for_each(entry, &adapter->erp_running_head)
- running++;
- total = adapter->erp_total_count;
-
- spin_lock_irqsave(&dbf->rec_lock, flags);
- memset(r, 0, sizeof(*r));
- r->id = ZFCP_REC_DBF_ID_THREAD;
- memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
- r->u.thread.total = total;
- r->u.thread.ready = ready;
- r->u.thread.running = running;
- debug_event(dbf->rec, 6, r, sizeof(*r));
- spin_unlock_irqrestore(&dbf->rec_lock, flags);
+ spin_unlock_irqrestore(&dbf->pay_lock, flags);
}
/**
- * zfcp_dbf_rec_thread - trace event related to recovery thread operation
- * @id2: identifier for event
- * @adapter: adapter
- * This function assumes that the caller does not hold erp_lock.
+ * zfcp_dbf_hba_basic - trace event for basic adapter events
+ * @adapter: pointer to struct zfcp_adapter
*/
-void zfcp_dbf_rec_thread_lock(char *id2, struct zfcp_dbf *dbf)
+void zfcp_dbf_hba_basic(char *tag, struct zfcp_adapter *adapter)
{
- struct zfcp_adapter *adapter = dbf->adapter;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_dbf_hba *rec = &dbf->hba_buf;
unsigned long flags;
- read_lock_irqsave(&adapter->erp_lock, flags);
- zfcp_dbf_rec_thread(id2, dbf);
- read_unlock_irqrestore(&adapter->erp_lock, flags);
-}
+ spin_lock_irqsave(&dbf->hba_lock, flags);
+ memset(rec, 0, sizeof(*rec));
-static void zfcp_dbf_rec_target(char *id2, void *ref, struct zfcp_dbf *dbf,
- atomic_t *status, atomic_t *erp_count, u64 wwpn,
- u32 d_id, u64 fcp_lun)
-{
- struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
- unsigned long flags;
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->id = ZFCP_DBF_HBA_BASIC;
- spin_lock_irqsave(&dbf->rec_lock, flags);
- memset(r, 0, sizeof(*r));
- r->id = ZFCP_REC_DBF_ID_TARGET;
- memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
- r->u.target.ref = (unsigned long)ref;
- r->u.target.status = atomic_read(status);
- r->u.target.wwpn = wwpn;
- r->u.target.d_id = d_id;
- r->u.target.fcp_lun = fcp_lun;
- r->u.target.erp_count = atomic_read(erp_count);
- debug_event(dbf->rec, 3, r, sizeof(*r));
- spin_unlock_irqrestore(&dbf->rec_lock, flags);
+ debug_event(dbf->hba, 1, rec, sizeof(*rec));
+ spin_unlock_irqrestore(&dbf->hba_lock, flags);
}
-/**
- * zfcp_dbf_rec_adapter - trace event for adapter state change
- * @id: identifier for trigger of state change
- * @ref: additional reference (e.g. request)
- * @dbf: reference to dbf structure
- */
-void zfcp_dbf_rec_adapter(char *id, void *ref, struct zfcp_dbf *dbf)
+static void zfcp_dbf_set_common(struct zfcp_dbf_rec *rec,
+ struct zfcp_adapter *adapter,
+ struct zfcp_port *port,
+ struct scsi_device *sdev)
{
- struct zfcp_adapter *adapter = dbf->adapter;
-
- zfcp_dbf_rec_target(id, ref, dbf, &adapter->status,
- &adapter->erp_counter, 0, 0,
- ZFCP_DBF_INVALID_LUN);
+ rec->adapter_status = atomic_read(&adapter->status);
+ if (port) {
+ rec->port_status = atomic_read(&port->status);
+ rec->wwpn = port->wwpn;
+ rec->d_id = port->d_id;
+ }
+ if (sdev) {
+ rec->lun_status = atomic_read(&sdev_to_zfcp(sdev)->status);
+ rec->lun = zfcp_scsi_dev_lun(sdev);
+ }
}
/**
- * zfcp_dbf_rec_port - trace event for port state change
- * @id: identifier for trigger of state change
- * @ref: additional reference (e.g. request)
- * @port: port
+ * zfcp_dbf_rec_trig - trace event related to triggered recovery
+ * @tag: identifier for event
+ * @adapter: adapter on which the erp_action should run
+ * @port: remote port involved in the erp_action
+ * @sdev: scsi device involved in the erp_action
+ * @want: wanted erp_action
+ * @need: required erp_action
+ *
+ * The adapter->erp_lock has to be held.
*/
-void zfcp_dbf_rec_port(char *id, void *ref, struct zfcp_port *port)
+void zfcp_dbf_rec_trig(char *tag, struct zfcp_adapter *adapter,
+ struct zfcp_port *port, struct scsi_device *sdev,
+ u8 want, u8 need)
{
- struct zfcp_dbf *dbf = port->adapter->dbf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_dbf_rec *rec = &dbf->rec_buf;
+ struct list_head *entry;
+ unsigned long flags;
- zfcp_dbf_rec_target(id, ref, dbf, &port->status,
- &port->erp_counter, port->wwpn, port->d_id,
- ZFCP_DBF_INVALID_LUN);
-}
+ spin_lock_irqsave(&dbf->rec_lock, flags);
+ memset(rec, 0, sizeof(*rec));
-/**
- * zfcp_dbf_rec_lun - trace event for LUN state change
- * @id: identifier for trigger of state change
- * @ref: additional reference (e.g. request)
- * @sdev: SCSI device
- */
-void zfcp_dbf_rec_lun(char *id, void *ref, struct scsi_device *sdev)
-{
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
- struct zfcp_port *port = zfcp_sdev->port;
- struct zfcp_dbf *dbf = port->adapter->dbf;
+ rec->id = ZFCP_DBF_REC_TRIG;
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ zfcp_dbf_set_common(rec, adapter, port, sdev);
- zfcp_dbf_rec_target(id, ref, dbf, &zfcp_sdev->status,
- &zfcp_sdev->erp_counter, port->wwpn, port->d_id,
- zfcp_scsi_dev_lun(sdev));
-}
+ list_for_each(entry, &adapter->erp_ready_head)
+ rec->u.trig.ready++;
-/**
- * zfcp_dbf_rec_trigger - trace event for triggered error recovery
- * @id2: identifier for error recovery trigger
- * @ref: additional reference (e.g. request)
- * @want: originally requested error recovery action
- * @need: error recovery action actually initiated
- * @action: address of error recovery action struct
- * @adapter: adapter
- * @port: port
- * @sdev: SCSI device
- */
-void zfcp_dbf_rec_trigger(char *id2, void *ref, u8 want, u8 need, void *action,
- struct zfcp_adapter *adapter, struct zfcp_port *port,
- struct scsi_device *sdev)
-{
- struct zfcp_dbf *dbf = adapter->dbf;
- struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
- unsigned long flags;
+ list_for_each(entry, &adapter->erp_running_head)
+ rec->u.trig.running++;
- spin_lock_irqsave(&dbf->rec_lock, flags);
- memset(r, 0, sizeof(*r));
- r->id = ZFCP_REC_DBF_ID_TRIGGER;
- memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
- r->u.trigger.ref = (unsigned long)ref;
- r->u.trigger.want = want;
- r->u.trigger.need = need;
- r->u.trigger.action = (unsigned long)action;
- r->u.trigger.as = atomic_read(&adapter->status);
- if (port) {
- r->u.trigger.ps = atomic_read(&port->status);
- r->u.trigger.wwpn = port->wwpn;
- }
- if (sdev)
- r->u.trigger.ls = atomic_read(&sdev_to_zfcp(sdev)->status);
- r->u.trigger.fcp_lun = sdev ? zfcp_scsi_dev_lun(sdev) :
- ZFCP_DBF_INVALID_LUN;
- debug_event(dbf->rec, action ? 1 : 4, r, sizeof(*r));
+ rec->u.trig.want = want;
+ rec->u.trig.need = need;
+
+ debug_event(dbf->rec, 1, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->rec_lock, flags);
}
+
/**
- * zfcp_dbf_rec_action - trace event showing progress of recovery action
- * @id2: identifier
- * @erp_action: error recovery action struct pointer
+ * zfcp_dbf_rec_run - trace event related to running recovery
+ * @tag: identifier for event
+ * @erp: erp_action running
*/
-void zfcp_dbf_rec_action(char *id2, struct zfcp_erp_action *erp_action)
+void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
{
- struct zfcp_dbf *dbf = erp_action->adapter->dbf;
- struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
+ struct zfcp_dbf *dbf = erp->adapter->dbf;
+ struct zfcp_dbf_rec *rec = &dbf->rec_buf;
unsigned long flags;
spin_lock_irqsave(&dbf->rec_lock, flags);
- memset(r, 0, sizeof(*r));
- r->id = ZFCP_REC_DBF_ID_ACTION;
- memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
- r->u.action.action = (unsigned long)erp_action;
- r->u.action.status = erp_action->status;
- r->u.action.step = erp_action->step;
- r->u.action.fsf_req = erp_action->fsf_req_id;
- debug_event(dbf->rec, 5, r, sizeof(*r));
- spin_unlock_irqrestore(&dbf->rec_lock, flags);
-}
+ memset(rec, 0, sizeof(*rec));
-/**
- * zfcp_dbf_san_ct_request - trace event for issued CT request
- * @fsf_req: request containing issued CT data
- * @d_id: destination id where ct request is sent to
- */
-void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req, u32 d_id)
-{
- struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
- struct zfcp_adapter *adapter = fsf_req->adapter;
- struct zfcp_dbf *dbf = adapter->dbf;
- struct fc_ct_hdr *hdr = sg_virt(ct->req);
- struct zfcp_dbf_san_record *r = &dbf->san_buf;
- struct zfcp_dbf_san_record_ct_request *oct = &r->u.ct_req;
- int level = 3;
- unsigned long flags;
+ rec->id = ZFCP_DBF_REC_RUN;
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ zfcp_dbf_set_common(rec, erp->adapter, erp->port, erp->sdev);
- spin_lock_irqsave(&dbf->san_lock, flags);
- memset(r, 0, sizeof(*r));
- strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE);
- r->fsf_reqid = fsf_req->req_id;
- r->fsf_seqno = fsf_req->seq_no;
- oct->d_id = d_id;
- oct->cmd_req_code = hdr->ct_cmd;
- oct->revision = hdr->ct_rev;
- oct->gs_type = hdr->ct_fs_type;
- oct->gs_subtype = hdr->ct_fs_subtype;
- oct->options = hdr->ct_options;
- oct->max_res_size = hdr->ct_mr_size;
- oct->len = min((int)ct->req->length - (int)sizeof(struct fc_ct_hdr),
- ZFCP_DBF_SAN_MAX_PAYLOAD);
- debug_event(dbf->san, level, r, sizeof(*r));
- zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
- (void *)hdr + sizeof(struct fc_ct_hdr), oct->len);
- spin_unlock_irqrestore(&dbf->san_lock, flags);
-}
+ rec->u.run.fsf_req_id = erp->fsf_req_id;
+ rec->u.run.rec_status = erp->status;
+ rec->u.run.rec_step = erp->step;
+ rec->u.run.rec_action = erp->action;
-/**
- * zfcp_dbf_san_ct_response - trace event for completion of CT request
- * @fsf_req: request containing CT response
- */
-void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *fsf_req)
-{
- struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
- struct zfcp_adapter *adapter = fsf_req->adapter;
- struct fc_ct_hdr *hdr = sg_virt(ct->resp);
- struct zfcp_dbf *dbf = adapter->dbf;
- struct zfcp_dbf_san_record *r = &dbf->san_buf;
- struct zfcp_dbf_san_record_ct_response *rct = &r->u.ct_resp;
- int level = 3;
- unsigned long flags;
+ if (erp->sdev)
+ rec->u.run.rec_count =
+ atomic_read(&sdev_to_zfcp(erp->sdev)->erp_counter);
+ else if (erp->port)
+ rec->u.run.rec_count = atomic_read(&erp->port->erp_counter);
+ else
+ rec->u.run.rec_count = atomic_read(&erp->adapter->erp_counter);
- spin_lock_irqsave(&dbf->san_lock, flags);
- memset(r, 0, sizeof(*r));
- strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
- r->fsf_reqid = fsf_req->req_id;
- r->fsf_seqno = fsf_req->seq_no;
- rct->cmd_rsp_code = hdr->ct_cmd;
- rct->revision = hdr->ct_rev;
- rct->reason_code = hdr->ct_reason;
- rct->expl = hdr->ct_explan;
- rct->vendor_unique = hdr->ct_vendor;
- rct->max_res_size = hdr->ct_mr_size;
- rct->len = min((int)ct->resp->length - (int)sizeof(struct fc_ct_hdr),
- ZFCP_DBF_SAN_MAX_PAYLOAD);
- debug_event(dbf->san, level, r, sizeof(*r));
- zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
- (void *)hdr + sizeof(struct fc_ct_hdr), rct->len);
- spin_unlock_irqrestore(&dbf->san_lock, flags);
+ debug_event(dbf->rec, 1, rec, sizeof(*rec));
+ spin_unlock_irqrestore(&dbf->rec_lock, flags);
}
-static void zfcp_dbf_san_els(const char *tag, int level,
- struct zfcp_fsf_req *fsf_req, u32 d_id,
- void *buffer, int buflen)
+static inline
+void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, void *data, u8 id, u16 len,
+ u64 req_id, u32 d_id)
{
- struct zfcp_adapter *adapter = fsf_req->adapter;
- struct zfcp_dbf *dbf = adapter->dbf;
- struct zfcp_dbf_san_record *rec = &dbf->san_buf;
+ struct zfcp_dbf_san *rec = &dbf->san_buf;
+ u16 rec_len;
unsigned long flags;
spin_lock_irqsave(&dbf->san_lock, flags);
memset(rec, 0, sizeof(*rec));
- strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
- rec->fsf_reqid = fsf_req->req_id;
- rec->fsf_seqno = fsf_req->seq_no;
- rec->u.els.d_id = d_id;
- debug_event(dbf->san, level, rec, sizeof(*rec));
- zfcp_dbf_hexdump(dbf->san, rec, sizeof(*rec), level,
- buffer, min(buflen, ZFCP_DBF_SAN_MAX_PAYLOAD));
+
+ rec->id = id;
+ rec->fsf_req_id = req_id;
+ rec->d_id = d_id;
+ rec_len = min(len, (u16)ZFCP_DBF_SAN_MAX_PAYLOAD);
+ memcpy(rec->payload, data, rec_len);
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+
+ debug_event(dbf->san, 1, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->san_lock, flags);
}
/**
- * zfcp_dbf_san_els_request - trace event for issued ELS
- * @fsf_req: request containing issued ELS
+ * zfcp_dbf_san_req - trace event for issued SAN request
+ * @tag: identifier for event
+ * @fsf_req: request containing issued CT data
+ * d_id: destination ID
*/
-void zfcp_dbf_san_els_request(struct zfcp_fsf_req *fsf_req)
+void zfcp_dbf_san_req(char *tag, struct zfcp_fsf_req *fsf, u32 d_id)
{
- struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
- u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
+ struct zfcp_dbf *dbf = fsf->adapter->dbf;
+ struct zfcp_fsf_ct_els *ct_els = fsf->data;
+ u16 length;
- zfcp_dbf_san_els("oels", 2, fsf_req, d_id,
- sg_virt(els->req), els->req->length);
+ length = (u16)(ct_els->req->length + FC_CT_HDR_LEN);
+ zfcp_dbf_san(tag, dbf, sg_virt(ct_els->req), ZFCP_DBF_SAN_REQ, length,
+ fsf->req_id, d_id);
}
/**
- * zfcp_dbf_san_els_response - trace event for completed ELS
- * @fsf_req: request containing ELS response
+ * zfcp_dbf_san_res - trace event for received SAN request
+ * @tag: identifier for event
+ * @fsf_req: request containing issued CT data
*/
-void zfcp_dbf_san_els_response(struct zfcp_fsf_req *fsf_req)
+void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
{
- struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
- u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
+ struct zfcp_dbf *dbf = fsf->adapter->dbf;
+ struct zfcp_fsf_ct_els *ct_els = fsf->data;
+ u16 length;
- zfcp_dbf_san_els("rels", 2, fsf_req, d_id,
- sg_virt(els->resp), els->resp->length);
+ length = (u16)(ct_els->resp->length + FC_CT_HDR_LEN);
+ zfcp_dbf_san(tag, dbf, sg_virt(ct_els->resp), ZFCP_DBF_SAN_RES, length,
+ fsf->req_id, 0);
}
/**
- * zfcp_dbf_san_incoming_els - trace event for incomig ELS
- * @fsf_req: request containing unsolicited status buffer with incoming ELS
+ * zfcp_dbf_san_in_els - trace event for incoming ELS
+ * @tag: identifier for event
+ * @fsf_req: request containing issued CT data
*/
-void zfcp_dbf_san_incoming_els(struct zfcp_fsf_req *fsf_req)
+void zfcp_dbf_san_in_els(char *tag, struct zfcp_fsf_req *fsf)
{
- struct fsf_status_read_buffer *buf =
- (struct fsf_status_read_buffer *)fsf_req->data;
- int length = (int)buf->length -
- (int)((void *)&buf->payload - (void *)buf);
+ struct zfcp_dbf *dbf = fsf->adapter->dbf;
+ struct fsf_status_read_buffer *srb =
+ (struct fsf_status_read_buffer *) fsf->data;
+ u16 length;
- zfcp_dbf_san_els("iels", 1, fsf_req, ntoh24(buf->d_id),
- (void *)buf->payload.data, length);
-}
-
-static int zfcp_dbf_san_view_format(debug_info_t *id, struct debug_view *view,
- char *out_buf, const char *in_buf)
-{
- struct zfcp_dbf_san_record *r = (struct zfcp_dbf_san_record *)in_buf;
- char *p = out_buf;
-
- if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
- return 0;
-
- zfcp_dbf_tag(&p, "tag", r->tag);
- zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
- zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
-
- if (strncmp(r->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
- struct zfcp_dbf_san_record_ct_request *ct = &r->u.ct_req;
- zfcp_dbf_out(&p, "d_id", "0x%06x", ct->d_id);
- zfcp_dbf_out(&p, "cmd_req_code", "0x%04x", ct->cmd_req_code);
- zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
- zfcp_dbf_out(&p, "gs_type", "0x%02x", ct->gs_type);
- zfcp_dbf_out(&p, "gs_subtype", "0x%02x", ct->gs_subtype);
- zfcp_dbf_out(&p, "options", "0x%02x", ct->options);
- zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
- } else if (strncmp(r->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
- struct zfcp_dbf_san_record_ct_response *ct = &r->u.ct_resp;
- zfcp_dbf_out(&p, "cmd_rsp_code", "0x%04x", ct->cmd_rsp_code);
- zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
- zfcp_dbf_out(&p, "reason_code", "0x%02x", ct->reason_code);
- zfcp_dbf_out(&p, "reason_code_expl", "0x%02x", ct->expl);
- zfcp_dbf_out(&p, "vendor_unique", "0x%02x", ct->vendor_unique);
- zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
- } else if (strncmp(r->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
- strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
- strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
- struct zfcp_dbf_san_record_els *els = &r->u.els;
- zfcp_dbf_out(&p, "d_id", "0x%06x", els->d_id);
- }
- return p - out_buf;
+ length = (u16)(srb->length -
+ offsetof(struct fsf_status_read_buffer, payload));
+ zfcp_dbf_san(tag, dbf, srb->payload.data, ZFCP_DBF_SAN_ELS, length,
+ fsf->req_id, ntoh24(srb->d_id));
}
-static struct debug_view zfcp_dbf_san_view = {
- .name = "structured",
- .header_proc = zfcp_dbf_view_header,
- .format_proc = zfcp_dbf_san_view_format,
-};
-
-void _zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
- struct zfcp_dbf *dbf, struct scsi_cmnd *scsi_cmnd,
- struct zfcp_fsf_req *fsf_req, unsigned long old_req_id)
+/**
+ * zfcp_dbf_scsi - trace event for scsi commands
+ * @tag: identifier for event
+ * @sc: pointer to struct scsi_cmnd
+ * @fsf: pointer to struct zfcp_fsf_req
+ */
+void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
{
- struct zfcp_dbf_scsi_record *rec = &dbf->scsi_buf;
- struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
- unsigned long flags;
+ struct zfcp_adapter *adapter =
+ (struct zfcp_adapter *) sc->device->host->hostdata[0];
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_dbf_scsi *rec = &dbf->scsi_buf;
struct fcp_resp_with_ext *fcp_rsp;
- struct fcp_resp_rsp_info *fcp_rsp_info = NULL;
- char *fcp_sns_info = NULL;
- int offset = 0, buflen = 0;
+ struct fcp_resp_rsp_info *fcp_rsp_info;
+ unsigned long flags;
spin_lock_irqsave(&dbf->scsi_lock, flags);
- do {
- memset(rec, 0, sizeof(*rec));
- if (offset == 0) {
- strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
- strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
- if (scsi_cmnd != NULL) {
- if (scsi_cmnd->device) {
- rec->scsi_id = scsi_cmnd->device->id;
- rec->scsi_lun = scsi_cmnd->device->lun;
- }
- rec->scsi_result = scsi_cmnd->result;
- rec->scsi_cmnd = (unsigned long)scsi_cmnd;
- memcpy(rec->scsi_opcode, scsi_cmnd->cmnd,
- min((int)scsi_cmnd->cmd_len,
- ZFCP_DBF_SCSI_OPCODE));
- rec->scsi_retries = scsi_cmnd->retries;
- rec->scsi_allowed = scsi_cmnd->allowed;
- }
- if (fsf_req != NULL) {
- fcp_rsp = (struct fcp_resp_with_ext *)
- &(fsf_req->qtcb->bottom.io.fcp_rsp);
- fcp_rsp_info = (struct fcp_resp_rsp_info *)
- &fcp_rsp[1];
- fcp_sns_info = (char *) &fcp_rsp[1];
- if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
- fcp_sns_info += fcp_rsp->ext.fr_sns_len;
-
- rec->rsp_validity = fcp_rsp->resp.fr_flags;
- rec->rsp_scsi_status = fcp_rsp->resp.fr_status;
- rec->rsp_resid = fcp_rsp->ext.fr_resid;
- if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
- rec->rsp_code = fcp_rsp_info->rsp_code;
- if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
- buflen = min(fcp_rsp->ext.fr_sns_len,
- (u32)ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
- rec->sns_info_len = buflen;
- memcpy(rec->sns_info, fcp_sns_info,
- min(buflen,
- ZFCP_DBF_SCSI_FCP_SNS_INFO));
- offset += min(buflen,
- ZFCP_DBF_SCSI_FCP_SNS_INFO);
- }
-
- rec->fsf_reqid = fsf_req->req_id;
- rec->fsf_seqno = fsf_req->seq_no;
- rec->fsf_issued = fsf_req->issued;
- }
- rec->old_fsf_reqid = old_req_id;
- } else {
- strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
- dump->total_size = buflen;
- dump->offset = offset;
- dump->size = min(buflen - offset,
- (int)sizeof(struct
- zfcp_dbf_scsi_record) -
- (int)sizeof(struct zfcp_dbf_dump));
- memcpy(dump->data, fcp_sns_info + offset, dump->size);
- offset += dump->size;
- }
- debug_event(dbf->scsi, level, rec, sizeof(*rec));
- } while (offset < buflen);
- spin_unlock_irqrestore(&dbf->scsi_lock, flags);
-}
+ memset(rec, 0, sizeof(*rec));
-static int zfcp_dbf_scsi_view_format(debug_info_t *id, struct debug_view *view,
- char *out_buf, const char *in_buf)
-{
- struct zfcp_dbf_scsi_record *r = (struct zfcp_dbf_scsi_record *)in_buf;
- struct timespec t;
- char *p = out_buf;
-
- if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
- return 0;
-
- zfcp_dbf_tag(&p, "tag", r->tag);
- zfcp_dbf_tag(&p, "tag2", r->tag2);
- zfcp_dbf_out(&p, "scsi_id", "0x%08x", r->scsi_id);
- zfcp_dbf_out(&p, "scsi_lun", "0x%08x", r->scsi_lun);
- zfcp_dbf_out(&p, "scsi_result", "0x%08x", r->scsi_result);
- zfcp_dbf_out(&p, "scsi_cmnd", "0x%0Lx", r->scsi_cmnd);
- zfcp_dbf_outd(&p, "scsi_opcode", r->scsi_opcode, ZFCP_DBF_SCSI_OPCODE,
- 0, ZFCP_DBF_SCSI_OPCODE);
- zfcp_dbf_out(&p, "scsi_retries", "0x%02x", r->scsi_retries);
- zfcp_dbf_out(&p, "scsi_allowed", "0x%02x", r->scsi_allowed);
- if (strncmp(r->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0)
- zfcp_dbf_out(&p, "old_fsf_reqid", "0x%0Lx", r->old_fsf_reqid);
- zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
- zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
- stck_to_timespec(r->fsf_issued, &t);
- zfcp_dbf_out(&p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
-
- if (strncmp(r->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {
- zfcp_dbf_out(&p, "fcp_rsp_validity", "0x%02x", r->rsp_validity);
- zfcp_dbf_out(&p, "fcp_rsp_scsi_status", "0x%02x",
- r->rsp_scsi_status);
- zfcp_dbf_out(&p, "fcp_rsp_resid", "0x%08x", r->rsp_resid);
- zfcp_dbf_out(&p, "fcp_rsp_code", "0x%08x", r->rsp_code);
- zfcp_dbf_out(&p, "fcp_sns_info_len", "0x%08x", r->sns_info_len);
- zfcp_dbf_outd(&p, "fcp_sns_info", r->sns_info,
- min((int)r->sns_info_len,
- ZFCP_DBF_SCSI_FCP_SNS_INFO), 0,
- r->sns_info_len);
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->id = ZFCP_DBF_SCSI_CMND;
+ rec->scsi_result = sc->result;
+ rec->scsi_retries = sc->retries;
+ rec->scsi_allowed = sc->allowed;
+ rec->scsi_id = sc->device->id;
+ rec->scsi_lun = sc->device->lun;
+ rec->host_scribble = (unsigned long)sc->host_scribble;
+
+ memcpy(rec->scsi_opcode, sc->cmnd,
+ min((int)sc->cmd_len, ZFCP_DBF_SCSI_OPCODE));
+
+ if (fsf) {
+ rec->fsf_req_id = fsf->req_id;
+ fcp_rsp = (struct fcp_resp_with_ext *)
+ &(fsf->qtcb->bottom.io.fcp_rsp);
+ memcpy(&rec->fcp_rsp, fcp_rsp, FCP_RESP_WITH_EXT);
+ if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL) {
+ fcp_rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
+ rec->fcp_rsp_info = fcp_rsp_info->rsp_code;
+ }
+ if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
+ rec->pl_len = min((u16)SCSI_SENSE_BUFFERSIZE,
+ (u16)ZFCP_DBF_PAY_MAX_REC);
+ zfcp_dbf_pl_write(dbf, sc->sense_buffer, rec->pl_len,
+ "fcp_sns", fsf->req_id);
+ }
}
- p += sprintf(p, "\n");
- return p - out_buf;
-}
-static struct debug_view zfcp_dbf_scsi_view = {
- .name = "structured",
- .header_proc = zfcp_dbf_view_header,
- .format_proc = zfcp_dbf_scsi_view_format,
-};
+ debug_event(dbf->scsi, 1, rec, sizeof(*rec));
+ spin_unlock_irqrestore(&dbf->scsi_lock, flags);
+}
-static debug_info_t *zfcp_dbf_reg(const char *name, int level,
- struct debug_view *view, int size)
+static debug_info_t *zfcp_dbf_reg(const char *name, int size, int rec_size)
{
struct debug_info *d;
- d = debug_register(name, dbfsize, level, size);
+ d = debug_register(name, size, 1, rec_size);
if (!d)
return NULL;
debug_register_view(d, &debug_hex_ascii_view);
- debug_register_view(d, view);
- debug_set_level(d, level);
+ debug_set_level(d, dbflevel);
return d;
}
+static void zfcp_dbf_unregister(struct zfcp_dbf *dbf)
+{
+ if (!dbf)
+ return;
+
+ debug_unregister(dbf->scsi);
+ debug_unregister(dbf->san);
+ debug_unregister(dbf->hba);
+ debug_unregister(dbf->pay);
+ debug_unregister(dbf->rec);
+ kfree(dbf);
+}
+
/**
* zfcp_adapter_debug_register - registers debug feature for an adapter
* @adapter: pointer to adapter for which debug features should be registered
@@ -1003,69 +479,66 @@ static debug_info_t *zfcp_dbf_reg(const char *name, int level,
*/
int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
{
- char dbf_name[DEBUG_MAX_NAME_LEN];
+ char name[DEBUG_MAX_NAME_LEN];
struct zfcp_dbf *dbf;
dbf = kzalloc(sizeof(struct zfcp_dbf), GFP_KERNEL);
if (!dbf)
return -ENOMEM;
- dbf->adapter = adapter;
-
+ spin_lock_init(&dbf->pay_lock);
spin_lock_init(&dbf->hba_lock);
spin_lock_init(&dbf->san_lock);
spin_lock_init(&dbf->scsi_lock);
spin_lock_init(&dbf->rec_lock);
/* debug feature area which records recovery activity */
- sprintf(dbf_name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
- dbf->rec = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_rec_view,
- sizeof(struct zfcp_dbf_rec_record));
+ sprintf(name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
+ dbf->rec = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_rec));
if (!dbf->rec)
goto err_out;
/* debug feature area which records HBA (FSF and QDIO) conditions */
- sprintf(dbf_name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
- dbf->hba = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_hba_view,
- sizeof(struct zfcp_dbf_hba_record));
+ sprintf(name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
+ dbf->hba = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_hba));
if (!dbf->hba)
goto err_out;
+ /* debug feature area which records payload info */
+ sprintf(name, "zfcp_%s_pay", dev_name(&adapter->ccw_device->dev));
+ dbf->pay = zfcp_dbf_reg(name, dbfsize * 2, sizeof(struct zfcp_dbf_pay));
+ if (!dbf->pay)
+ goto err_out;
+
/* debug feature area which records SAN command failures and recovery */
- sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
- dbf->san = zfcp_dbf_reg(dbf_name, 6, &zfcp_dbf_san_view,
- sizeof(struct zfcp_dbf_san_record));
+ sprintf(name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
+ dbf->san = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_san));
if (!dbf->san)
goto err_out;
/* debug feature area which records SCSI command failures and recovery */
- sprintf(dbf_name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
- dbf->scsi = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_scsi_view,
- sizeof(struct zfcp_dbf_scsi_record));
+ sprintf(name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
+ dbf->scsi = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_scsi));
if (!dbf->scsi)
goto err_out;
adapter->dbf = dbf;
- return 0;
+ return 0;
err_out:
- zfcp_dbf_adapter_unregister(dbf);
+ zfcp_dbf_unregister(dbf);
return -ENOMEM;
}
/**
* zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
- * @dbf: pointer to dbf for which debug features should be unregistered
+ * @adapter: pointer to adapter for which debug features should be unregistered
*/
-void zfcp_dbf_adapter_unregister(struct zfcp_dbf *dbf)
+void zfcp_dbf_adapter_unregister(struct zfcp_adapter *adapter)
{
- if (!dbf)
- return;
- debug_unregister(dbf->scsi);
- debug_unregister(dbf->san);
- debug_unregister(dbf->hba);
- debug_unregister(dbf->rec);
- dbf->adapter->dbf = NULL;
- kfree(dbf);
+ struct zfcp_dbf *dbf = adapter->dbf;
+
+ adapter->dbf = NULL;
+ zfcp_dbf_unregister(dbf);
}
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 04081b1b62b..0be3d48681a 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -1,22 +1,8 @@
/*
- * This file is part of the zfcp device driver for
- * FCP adapters for IBM System z9 and zSeries.
+ * zfcp device driver
+ * debug feature declarations
*
- * Copyright IBM Corp. 2008, 2009
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Copyright IBM Corp. 2008, 2010
*/
#ifndef ZFCP_DBF_H
@@ -27,322 +13,351 @@
#include "zfcp_fsf.h"
#include "zfcp_def.h"
-#define ZFCP_DBF_TAG_SIZE 4
-#define ZFCP_DBF_ID_SIZE 7
+#define ZFCP_DBF_TAG_LEN 7
#define ZFCP_DBF_INVALID_LUN 0xFFFFFFFFFFFFFFFFull
-struct zfcp_dbf_dump {
- u8 tag[ZFCP_DBF_TAG_SIZE];
- u32 total_size; /* size of total dump data */
- u32 offset; /* how much data has being already dumped */
- u32 size; /* how much data comes with this record */
- u8 data[]; /* dump data */
-} __attribute__ ((packed));
-
-struct zfcp_dbf_rec_record_thread {
- u32 total;
+/**
+ * struct zfcp_dbf_rec_trigger - trace record for triggered recovery action
+ * @ready: number of ready recovery actions
+ * @running: number of running recovery actions
+ * @want: wanted recovery action
+ * @need: needed recovery action
+ */
+struct zfcp_dbf_rec_trigger {
u32 ready;
u32 running;
-};
-
-struct zfcp_dbf_rec_record_target {
- u64 ref;
- u32 status;
- u32 d_id;
- u64 wwpn;
- u64 fcp_lun;
- u32 erp_count;
-};
-
-struct zfcp_dbf_rec_record_trigger {
u8 want;
u8 need;
- u32 as;
- u32 ps;
- u32 ls;
- u64 ref;
- u64 action;
- u64 wwpn;
- u64 fcp_lun;
-};
+} __packed;
-struct zfcp_dbf_rec_record_action {
- u32 status;
- u32 step;
- u64 action;
- u64 fsf_req;
+/**
+ * struct zfcp_dbf_rec_running - trace record for running recovery
+ * @fsf_req_id: request id for fsf requests
+ * @rec_status: status of the fsf request
+ * @rec_step: current step of the recovery action
+ * rec_count: recovery counter
+ */
+struct zfcp_dbf_rec_running {
+ u64 fsf_req_id;
+ u32 rec_status;
+ u16 rec_step;
+ u8 rec_action;
+ u8 rec_count;
+} __packed;
+
+/**
+ * enum zfcp_dbf_rec_id - recovery trace record id
+ * @ZFCP_DBF_REC_TRIG: triggered recovery identifier
+ * @ZFCP_DBF_REC_RUN: running recovery identifier
+ */
+enum zfcp_dbf_rec_id {
+ ZFCP_DBF_REC_TRIG = 1,
+ ZFCP_DBF_REC_RUN = 2,
};
-struct zfcp_dbf_rec_record {
+/**
+ * struct zfcp_dbf_rec - trace record for error recovery actions
+ * @id: unique number of recovery record type
+ * @tag: identifier string specifying the location of initiation
+ * @lun: logical unit number
+ * @wwpn: word wide port number
+ * @d_id: destination ID
+ * @adapter_status: current status of the adapter
+ * @port_status: current status of the port
+ * @lun_status: current status of the lun
+ * @u.trig: structure zfcp_dbf_rec_trigger
+ * @u.run: structure zfcp_dbf_rec_running
+ */
+struct zfcp_dbf_rec {
u8 id;
- char id2[7];
+ char tag[ZFCP_DBF_TAG_LEN];
+ u64 lun;
+ u64 wwpn;
+ u32 d_id;
+ u32 adapter_status;
+ u32 port_status;
+ u32 lun_status;
union {
- struct zfcp_dbf_rec_record_action action;
- struct zfcp_dbf_rec_record_thread thread;
- struct zfcp_dbf_rec_record_target target;
- struct zfcp_dbf_rec_record_trigger trigger;
+ struct zfcp_dbf_rec_trigger trig;
+ struct zfcp_dbf_rec_running run;
} u;
-};
+} __packed;
-enum {
- ZFCP_REC_DBF_ID_ACTION,
- ZFCP_REC_DBF_ID_THREAD,
- ZFCP_REC_DBF_ID_TARGET,
- ZFCP_REC_DBF_ID_TRIGGER,
+/**
+ * enum zfcp_dbf_san_id - SAN trace record identifier
+ * @ZFCP_DBF_SAN_REQ: request trace record id
+ * @ZFCP_DBF_SAN_RES: response trace record id
+ * @ZFCP_DBF_SAN_ELS: extended link service record id
+ */
+enum zfcp_dbf_san_id {
+ ZFCP_DBF_SAN_REQ = 1,
+ ZFCP_DBF_SAN_RES = 2,
+ ZFCP_DBF_SAN_ELS = 3,
};
-struct zfcp_dbf_hba_record_response {
- u32 fsf_command;
- u64 fsf_reqid;
- u32 fsf_seqno;
- u64 fsf_issued;
- u32 fsf_prot_status;
+/** struct zfcp_dbf_san - trace record for SAN requests and responses
+ * @id: unique number of recovery record type
+ * @tag: identifier string specifying the location of initiation
+ * @fsf_req_id: request id for fsf requests
+ * @payload: unformatted information related to request/response
+ * @d_id: destination id
+ */
+struct zfcp_dbf_san {
+ u8 id;
+ char tag[ZFCP_DBF_TAG_LEN];
+ u64 fsf_req_id;
+ u32 d_id;
+#define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
+ char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
+} __packed;
+
+/**
+ * struct zfcp_dbf_hba_res - trace record for hba responses
+ * @req_issued: timestamp when request was issued
+ * @prot_status: protocol status
+ * @prot_status_qual: protocol status qualifier
+ * @fsf_status: fsf status
+ * @fsf_status_qual: fsf status qualifier
+ */
+struct zfcp_dbf_hba_res {
+ u64 req_issued;
+ u32 prot_status;
+ u8 prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
u32 fsf_status;
- u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
- u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
- u32 fsf_req_status;
- u8 sbal_first;
- u8 sbal_last;
- u8 sbal_response;
- u8 pool;
- u64 erp_action;
- union {
- struct {
- u64 cmnd;
- u32 data_dir;
- } fcp;
- struct {
- u64 wwpn;
- u32 d_id;
- u32 port_handle;
- } port;
- struct {
- u64 wwpn;
- u64 fcp_lun;
- u32 port_handle;
- u32 lun_handle;
- } unit;
- struct {
- u32 d_id;
- } els;
- } u;
-} __attribute__ ((packed));
+ u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
+} __packed;
-struct zfcp_dbf_hba_record_status {
- u8 failed;
+/**
+ * struct zfcp_dbf_hba_uss - trace record for unsolicited status
+ * @status_type: type of unsolicited status
+ * @status_subtype: subtype of unsolicited status
+ * @d_id: destination ID
+ * @lun: logical unit number
+ * @queue_designator: queue designator
+ */
+struct zfcp_dbf_hba_uss {
u32 status_type;
u32 status_subtype;
- struct fsf_queue_designator
- queue_designator;
- u32 payload_size;
-#define ZFCP_DBF_UNSOL_PAYLOAD 80
-#define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL 32
-#define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD 56
-#define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT 2 * sizeof(u32)
- u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
-} __attribute__ ((packed));
-
-struct zfcp_dbf_hba_record_qdio {
- u32 qdio_error;
- u8 sbal_index;
- u8 sbal_count;
-} __attribute__ ((packed));
-
-struct zfcp_dbf_hba_record {
- u8 tag[ZFCP_DBF_TAG_SIZE];
- u8 tag2[ZFCP_DBF_TAG_SIZE];
- union {
- struct zfcp_dbf_hba_record_response response;
- struct zfcp_dbf_hba_record_status status;
- struct zfcp_dbf_hba_record_qdio qdio;
- struct fsf_bit_error_payload berr;
- } u;
-} __attribute__ ((packed));
-
-struct zfcp_dbf_san_record_ct_request {
- u16 cmd_req_code;
- u8 revision;
- u8 gs_type;
- u8 gs_subtype;
- u8 options;
- u16 max_res_size;
- u32 len;
- u32 d_id;
-} __attribute__ ((packed));
-
-struct zfcp_dbf_san_record_ct_response {
- u16 cmd_rsp_code;
- u8 revision;
- u8 reason_code;
- u8 expl;
- u8 vendor_unique;
- u16 max_res_size;
- u32 len;
-} __attribute__ ((packed));
-
-struct zfcp_dbf_san_record_els {
u32 d_id;
-} __attribute__ ((packed));
+ u64 lun;
+ u64 queue_designator;
+} __packed;
-struct zfcp_dbf_san_record {
- u8 tag[ZFCP_DBF_TAG_SIZE];
- u64 fsf_reqid;
- u32 fsf_seqno;
+/**
+ * enum zfcp_dbf_hba_id - HBA trace record identifier
+ * @ZFCP_DBF_HBA_RES: response trace record
+ * @ZFCP_DBF_HBA_USS: unsolicited status trace record
+ * @ZFCP_DBF_HBA_BIT: bit error trace record
+ */
+enum zfcp_dbf_hba_id {
+ ZFCP_DBF_HBA_RES = 1,
+ ZFCP_DBF_HBA_USS = 2,
+ ZFCP_DBF_HBA_BIT = 3,
+ ZFCP_DBF_HBA_BASIC = 4,
+};
+
+/**
+ * struct zfcp_dbf_hba - common trace record for HBA records
+ * @id: unique number of recovery record type
+ * @tag: identifier string specifying the location of initiation
+ * @fsf_req_id: request id for fsf requests
+ * @fsf_req_status: status of fsf request
+ * @fsf_cmd: fsf command
+ * @fsf_seq_no: fsf sequence number
+ * @pl_len: length of payload stored as zfcp_dbf_pay
+ * @u: record type specific data
+ */
+struct zfcp_dbf_hba {
+ u8 id;
+ char tag[ZFCP_DBF_TAG_LEN];
+ u64 fsf_req_id;
+ u32 fsf_req_status;
+ u32 fsf_cmd;
+ u32 fsf_seq_no;
+ u16 pl_len;
union {
- struct zfcp_dbf_san_record_ct_request ct_req;
- struct zfcp_dbf_san_record_ct_response ct_resp;
- struct zfcp_dbf_san_record_els els;
+ struct zfcp_dbf_hba_res res;
+ struct zfcp_dbf_hba_uss uss;
+ struct fsf_bit_error_payload be;
} u;
-} __attribute__ ((packed));
+} __packed;
-#define ZFCP_DBF_SAN_MAX_PAYLOAD 1024
+/**
+ * enum zfcp_dbf_scsi_id - scsi trace record identifier
+ * @ZFCP_DBF_SCSI_CMND: scsi command trace record
+ */
+enum zfcp_dbf_scsi_id {
+ ZFCP_DBF_SCSI_CMND = 1,
+};
-struct zfcp_dbf_scsi_record {
- u8 tag[ZFCP_DBF_TAG_SIZE];
- u8 tag2[ZFCP_DBF_TAG_SIZE];
+/**
+ * struct zfcp_dbf_scsi - common trace record for SCSI records
+ * @id: unique number of recovery record type
+ * @tag: identifier string specifying the location of initiation
+ * @scsi_id: scsi device id
+ * @scsi_lun: scsi device logical unit number
+ * @scsi_result: scsi result
+ * @scsi_retries: current retry number of scsi request
+ * @scsi_allowed: allowed retries
+ * @fcp_rsp_info: FCP response info
+ * @scsi_opcode: scsi opcode
+ * @fsf_req_id: request id of fsf request
+ * @host_scribble: LLD specific data attached to SCSI request
+ * @pl_len: length of paload stored as zfcp_dbf_pay
+ * @fsf_rsp: response for fsf request
+ */
+struct zfcp_dbf_scsi {
+ u8 id;
+ char tag[ZFCP_DBF_TAG_LEN];
u32 scsi_id;
u32 scsi_lun;
u32 scsi_result;
- u64 scsi_cmnd;
-#define ZFCP_DBF_SCSI_OPCODE 16
- u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
u8 scsi_retries;
u8 scsi_allowed;
- u64 fsf_reqid;
- u32 fsf_seqno;
- u64 fsf_issued;
- u64 old_fsf_reqid;
- u8 rsp_validity;
- u8 rsp_scsi_status;
- u32 rsp_resid;
- u8 rsp_code;
-#define ZFCP_DBF_SCSI_FCP_SNS_INFO 16
-#define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO 256
- u32 sns_info_len;
- u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
-} __attribute__ ((packed));
+ u8 fcp_rsp_info;
+#define ZFCP_DBF_SCSI_OPCODE 16
+ u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
+ u64 fsf_req_id;
+ u64 host_scribble;
+ u16 pl_len;
+ struct fcp_resp_with_ext fcp_rsp;
+} __packed;
+/**
+ * struct zfcp_dbf_pay - trace record for unformatted payload information
+ * @area: area this record is originated from
+ * @counter: ascending record number
+ * @fsf_req_id: request id of fsf request
+ * @data: unformatted data
+ */
+struct zfcp_dbf_pay {
+ u8 counter;
+ char area[ZFCP_DBF_TAG_LEN];
+ u64 fsf_req_id;
+#define ZFCP_DBF_PAY_MAX_REC 0x100
+ char data[ZFCP_DBF_PAY_MAX_REC];
+} __packed;
+
+/**
+ * struct zfcp_dbf - main dbf trace structure
+ * @pay: reference to payload trace area
+ * @rec: reference to recovery trace area
+ * @hba: reference to hba trace area
+ * @san: reference to san trace area
+ * @scsi: reference to scsi trace area
+ * @pay_lock: lock protecting payload trace buffer
+ * @rec_lock: lock protecting recovery trace buffer
+ * @hba_lock: lock protecting hba trace buffer
+ * @san_lock: lock protecting san trace buffer
+ * @scsi_lock: lock protecting scsi trace buffer
+ * @pay_buf: pre-allocated buffer for payload
+ * @rec_buf: pre-allocated buffer for recovery
+ * @hba_buf: pre-allocated buffer for hba
+ * @san_buf: pre-allocated buffer for san
+ * @scsi_buf: pre-allocated buffer for scsi
+ */
struct zfcp_dbf {
+ debug_info_t *pay;
debug_info_t *rec;
debug_info_t *hba;
debug_info_t *san;
debug_info_t *scsi;
+ spinlock_t pay_lock;
spinlock_t rec_lock;
spinlock_t hba_lock;
spinlock_t san_lock;
spinlock_t scsi_lock;
- struct zfcp_dbf_rec_record rec_buf;
- struct zfcp_dbf_hba_record hba_buf;
- struct zfcp_dbf_san_record san_buf;
- struct zfcp_dbf_scsi_record scsi_buf;
- struct zfcp_adapter *adapter;
+ struct zfcp_dbf_pay pay_buf;
+ struct zfcp_dbf_rec rec_buf;
+ struct zfcp_dbf_hba hba_buf;
+ struct zfcp_dbf_san san_buf;
+ struct zfcp_dbf_scsi scsi_buf;
};
static inline
-void zfcp_dbf_hba_fsf_resp(const char *tag2, int level,
- struct zfcp_fsf_req *req, struct zfcp_dbf *dbf)
+void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
{
- if (level <= dbf->hba->level)
- _zfcp_dbf_hba_fsf_response(tag2, level, req, dbf);
+ if (debug_level_enabled(req->adapter->dbf->hba, level))
+ zfcp_dbf_hba_fsf_res(tag, req);
}
/**
* zfcp_dbf_hba_fsf_response - trace event for request completion
- * @fsf_req: request that has been completed
+ * @req: request that has been completed
*/
-static inline void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
+static inline
+void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
{
- struct zfcp_dbf *dbf = req->adapter->dbf;
struct fsf_qtcb *qtcb = req->qtcb;
if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
(qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
- zfcp_dbf_hba_fsf_resp("perr", 1, req, dbf);
+ zfcp_dbf_hba_fsf_resp("fs_perr", 1, req);
} else if (qtcb->header.fsf_status != FSF_GOOD) {
- zfcp_dbf_hba_fsf_resp("ferr", 1, req, dbf);
+ zfcp_dbf_hba_fsf_resp("fs_ferr", 1, req);
} else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
(req->fsf_command == FSF_QTCB_OPEN_LUN)) {
- zfcp_dbf_hba_fsf_resp("open", 4, req, dbf);
+ zfcp_dbf_hba_fsf_resp("fs_open", 4, req);
} else if (qtcb->header.log_length) {
- zfcp_dbf_hba_fsf_resp("qtcb", 5, req, dbf);
+ zfcp_dbf_hba_fsf_resp("fs_qtcb", 5, req);
} else {
- zfcp_dbf_hba_fsf_resp("norm", 6, req, dbf);
+ zfcp_dbf_hba_fsf_resp("fs_norm", 6, req);
}
- }
-
-/**
- * zfcp_dbf_hba_fsf_unsol - trace event for an unsolicited status buffer
- * @tag: tag indicating which kind of unsolicited status has been received
- * @dbf: reference to dbf structure
- * @status_buffer: buffer containing payload of unsolicited status
- */
-static inline
-void zfcp_dbf_hba_fsf_unsol(const char *tag, struct zfcp_dbf *dbf,
- struct fsf_status_read_buffer *buf)
-{
- int level = 2;
-
- if (level <= dbf->hba->level)
- _zfcp_dbf_hba_fsf_unsol(tag, level, dbf, buf);
}
static inline
-void zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
- struct zfcp_dbf *dbf, struct scsi_cmnd *scmd,
- struct zfcp_fsf_req *req, unsigned long old_id)
+void _zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *scmd,
+ struct zfcp_fsf_req *req)
{
- if (level <= dbf->scsi->level)
- _zfcp_dbf_scsi(tag, tag2, level, dbf, scmd, req, old_id);
+ struct zfcp_adapter *adapter = (struct zfcp_adapter *)
+ scmd->device->host->hostdata[0];
+
+ if (debug_level_enabled(adapter->dbf->scsi, level))
+ zfcp_dbf_scsi(tag, scmd, req);
}
/**
* zfcp_dbf_scsi_result - trace event for SCSI command completion
- * @dbf: adapter dbf trace
* @scmd: SCSI command pointer
* @req: FSF request used to issue SCSI command
*/
static inline
-void zfcp_dbf_scsi_result(struct zfcp_dbf *dbf, struct scsi_cmnd *scmd,
- struct zfcp_fsf_req *req)
+void zfcp_dbf_scsi_result(struct scsi_cmnd *scmd, struct zfcp_fsf_req *req)
{
if (scmd->result != 0)
- zfcp_dbf_scsi("rslt", "erro", 3, dbf, scmd, req, 0);
+ _zfcp_dbf_scsi("rsl_err", 3, scmd, req);
else if (scmd->retries > 0)
- zfcp_dbf_scsi("rslt", "retr", 4, dbf, scmd, req, 0);
+ _zfcp_dbf_scsi("rsl_ret", 4, scmd, req);
else
- zfcp_dbf_scsi("rslt", "norm", 6, dbf, scmd, req, 0);
+ _zfcp_dbf_scsi("rsl_nor", 6, scmd, req);
}
/**
* zfcp_dbf_scsi_fail_send - trace event for failure to send SCSI command
- * @dbf: adapter dbf trace
* @scmd: SCSI command pointer
*/
static inline
-void zfcp_dbf_scsi_fail_send(struct zfcp_dbf *dbf, struct scsi_cmnd *scmd)
+void zfcp_dbf_scsi_fail_send(struct scsi_cmnd *scmd)
{
- zfcp_dbf_scsi("rslt", "fail", 4, dbf, scmd, NULL, 0);
+ _zfcp_dbf_scsi("rsl_fai", 4, scmd, NULL);
}
/**
* zfcp_dbf_scsi_abort - trace event for SCSI command abort
* @tag: tag indicating success or failure of abort operation
- * @adapter: adapter thas has been used to issue SCSI command to be aborted
* @scmd: SCSI command to be aborted
- * @new_req: request containing abort (might be NULL)
- * @old_id: identifier of request containg SCSI command to be aborted
+ * @fsf_req: request containing abort (might be NULL)
*/
static inline
-void zfcp_dbf_scsi_abort(const char *tag, struct zfcp_dbf *dbf,
- struct scsi_cmnd *scmd, struct zfcp_fsf_req *new_req,
- unsigned long old_id)
+void zfcp_dbf_scsi_abort(char *tag, struct scsi_cmnd *scmd,
+ struct zfcp_fsf_req *fsf_req)
{
- zfcp_dbf_scsi("abrt", tag, 1, dbf, scmd, new_req, old_id);
+ _zfcp_dbf_scsi(tag, 1, scmd, fsf_req);
}
/**
@@ -352,12 +367,17 @@ void zfcp_dbf_scsi_abort(const char *tag, struct zfcp_dbf *dbf,
* @flag: indicates type of reset (Target Reset, Logical Unit Reset)
*/
static inline
-void zfcp_dbf_scsi_devreset(const char *tag, struct scsi_cmnd *scmnd, u8 flag)
+void zfcp_dbf_scsi_devreset(char *tag, struct scsi_cmnd *scmnd, u8 flag)
{
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device);
+ char tmp_tag[ZFCP_DBF_TAG_LEN];
+
+ if (flag == FCP_TMF_TGT_RESET)
+ memcpy(tmp_tag, "tr_", 3);
+ else
+ memcpy(tmp_tag, "lr_", 3);
- zfcp_dbf_scsi(flag == FCP_TMF_TGT_RESET ? "trst" : "lrst", tag, 1,
- zfcp_sdev->port->adapter->dbf, scmnd, NULL, 0);
+ memcpy(&tmp_tag[3], tag, 4);
+ _zfcp_dbf_scsi(tmp_tag, 1, scmnd, NULL);
}
#endif /* ZFCP_DBF_H */
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 9ae1d0a6f62..d91173f326c 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -3,7 +3,7 @@
*
* Global definitions for the zfcp device driver.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2010
*/
#ifndef ZFCP_DEF_H
@@ -72,10 +72,12 @@ struct zfcp_reqlist;
#define ZFCP_STATUS_COMMON_NOESC 0x00200000
/* adapter status */
+#define ZFCP_STATUS_ADAPTER_MB_ACT 0x00000001
#define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002
#define ZFCP_STATUS_ADAPTER_SIOSL_ISSUED 0x00000004
#define ZFCP_STATUS_ADAPTER_XCONFIG_OK 0x00000008
#define ZFCP_STATUS_ADAPTER_HOST_CON_INIT 0x00000010
+#define ZFCP_STATUS_ADAPTER_SUSPENDED 0x00000040
#define ZFCP_STATUS_ADAPTER_ERP_PENDING 0x00000100
#define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED 0x00000200
#define ZFCP_STATUS_ADAPTER_DATA_DIV_ENABLED 0x00000400
@@ -84,12 +86,7 @@ struct zfcp_reqlist;
#define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001
#define ZFCP_STATUS_PORT_LINK_TEST 0x00000002
-/* logical unit status */
-#define ZFCP_STATUS_LUN_SHARED 0x00000004
-#define ZFCP_STATUS_LUN_READONLY 0x00000008
-
/* FSF request status (this does not have a common part) */
-#define ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT 0x00000002
#define ZFCP_STATUS_FSFREQ_ERROR 0x00000008
#define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010
#define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED 0x00000040
@@ -108,7 +105,7 @@ struct zfcp_adapter_mempool {
mempool_t *scsi_req;
mempool_t *scsi_abort;
mempool_t *status_read_req;
- mempool_t *status_read_data;
+ mempool_t *sr_data;
mempool_t *gid_pn;
mempool_t *qtcb_pool;
};
@@ -190,6 +187,7 @@ 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;
@@ -203,6 +201,7 @@ struct zfcp_port {
struct zfcp_adapter *adapter; /* adapter used to access port */
struct list_head unit_list; /* head of logical unit list */
rwlock_t unit_list_lock; /* unit list lock */
+ atomic_t units; /* zfcp_unit count */
atomic_t status; /* status of this remote port */
u64 wwnn; /* WWNN if known */
u64 wwpn; /* WWPN */
@@ -314,15 +313,10 @@ struct zfcp_fsf_req {
void (*handler)(struct zfcp_fsf_req *);
};
-/* driver data */
-struct zfcp_data {
- struct scsi_host_template scsi_host_template;
- struct scsi_transport_template *scsi_transport_template;
- struct kmem_cache *gpn_ft_cache;
- struct kmem_cache *qtcb_cache;
- struct kmem_cache *sr_buffer_cache;
- struct kmem_cache *gid_pn_cache;
- struct kmem_cache *adisc_cache;
-};
+static inline
+int zfcp_adapter_multi_buffer_active(struct zfcp_adapter *adapter)
+{
+ return atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_MB_ACT;
+}
#endif /* ZFCP_DEF_H */
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index d37c7331f24..c82fe65c412 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -3,7 +3,7 @@
*
* Error Recovery Procedures (ERP).
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2010
*/
#define KMSG_COMPONENT "zfcp"
@@ -76,9 +76,9 @@ static void zfcp_erp_action_ready(struct zfcp_erp_action *act)
struct zfcp_adapter *adapter = act->adapter;
list_move(&act->list, &act->adapter->erp_ready_head);
- zfcp_dbf_rec_action("erardy1", act);
+ zfcp_dbf_rec_run("erardy1", act);
wake_up(&adapter->erp_ready_wq);
- zfcp_dbf_rec_thread("erardy2", adapter->dbf);
+ zfcp_dbf_rec_run("erardy2", act);
}
static void zfcp_erp_action_dismiss(struct zfcp_erp_action *act)
@@ -102,10 +102,13 @@ static void zfcp_erp_action_dismiss_port(struct zfcp_port *port)
if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_INUSE)
zfcp_erp_action_dismiss(&port->erp_action);
- else
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ else {
+ spin_lock(port->adapter->scsi_host->host_lock);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port)
zfcp_erp_action_dismiss_lun(sdev);
+ spin_unlock(port->adapter->scsi_host->host_lock);
+ }
}
static void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
@@ -156,6 +159,8 @@ static int zfcp_erp_required_act(int want, struct zfcp_adapter *adapter,
if (!(a_status & ZFCP_STATUS_COMMON_RUNNING) ||
a_status & ZFCP_STATUS_COMMON_ERP_FAILED)
return 0;
+ if (p_status & ZFCP_STATUS_COMMON_NOESC)
+ return need;
if (!(a_status & ZFCP_STATUS_COMMON_UNBLOCKED))
need = ZFCP_ERP_ACTION_REOPEN_ADAPTER;
/* fall through */
@@ -188,6 +193,9 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE,
&zfcp_sdev->status);
erp_action = &zfcp_sdev->erp_action;
+ memset(erp_action, 0, sizeof(struct zfcp_erp_action));
+ erp_action->port = port;
+ erp_action->sdev = sdev;
if (!(atomic_read(&zfcp_sdev->status) &
ZFCP_STATUS_COMMON_RUNNING))
act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -200,6 +208,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
zfcp_erp_action_dismiss_port(port);
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status);
erp_action = &port->erp_action;
+ memset(erp_action, 0, sizeof(struct zfcp_erp_action));
+ erp_action->port = port;
if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_RUNNING))
act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
break;
@@ -209,6 +219,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
zfcp_erp_action_dismiss_adapter(adapter);
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status);
erp_action = &adapter->erp_action;
+ memset(erp_action, 0, sizeof(struct zfcp_erp_action));
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING))
act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -218,10 +229,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
return NULL;
}
- memset(erp_action, 0, sizeof(struct zfcp_erp_action));
erp_action->adapter = adapter;
- erp_action->port = port;
- erp_action->sdev = sdev;
erp_action->action = need;
erp_action->status = act_status;
@@ -231,10 +239,10 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
struct zfcp_port *port,
struct scsi_device *sdev,
- char *id, void *ref, u32 act_status)
+ char *id, u32 act_status)
{
int retval = 1, need;
- struct zfcp_erp_action *act = NULL;
+ struct zfcp_erp_action *act;
if (!adapter->erp_thread)
return -EIO;
@@ -250,15 +258,14 @@ static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
++adapter->erp_total_count;
list_add_tail(&act->list, &adapter->erp_ready_head);
wake_up(&adapter->erp_ready_wq);
- zfcp_dbf_rec_thread("eracte1", adapter->dbf);
retval = 0;
out:
- zfcp_dbf_rec_trigger(id, ref, want, need, act, adapter, port, sdev);
+ zfcp_dbf_rec_trig(id, adapter, port, sdev, want, need);
return retval;
}
static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
- int clear_mask, char *id, void *ref)
+ int clear_mask, char *id)
{
zfcp_erp_adapter_block(adapter, clear_mask);
zfcp_scsi_schedule_rports_block(adapter);
@@ -270,7 +277,7 @@ static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
return -EIO;
}
return zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER,
- adapter, NULL, NULL, id, ref, 0);
+ adapter, NULL, NULL, id, 0);
}
/**
@@ -278,10 +285,8 @@ static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
* @adapter: Adapter to reopen.
* @clear: Status flags to clear.
* @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
*/
-void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
- char *id, void *ref)
+void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear, char *id)
{
unsigned long flags;
@@ -294,7 +299,7 @@ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
ZFCP_STATUS_COMMON_ERP_FAILED);
else
zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, adapter,
- NULL, NULL, id, ref, 0);
+ NULL, NULL, id, 0);
write_unlock_irqrestore(&adapter->erp_lock, flags);
}
@@ -303,13 +308,12 @@ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
* @adapter: Adapter to shut down.
* @clear: Status flags to clear.
* @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
*/
void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,
- char *id, void *ref)
+ char *id)
{
int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
- zfcp_erp_adapter_reopen(adapter, clear | flags, id, ref);
+ zfcp_erp_adapter_reopen(adapter, clear | flags, id);
}
/**
@@ -317,13 +321,11 @@ void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,
* @port: Port to shut down.
* @clear: Status flags to clear.
* @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
*/
-void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, char *id,
- void *ref)
+void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, char *id)
{
int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
- zfcp_erp_port_reopen(port, clear | flags, id, ref);
+ zfcp_erp_port_reopen(port, clear | flags, id);
}
static void zfcp_erp_port_block(struct zfcp_port *port, int clear)
@@ -332,8 +334,8 @@ static void zfcp_erp_port_block(struct zfcp_port *port, int clear)
ZFCP_STATUS_COMMON_UNBLOCKED | clear);
}
-static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port,
- int clear, char *id, void *ref)
+static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear,
+ char *id)
{
zfcp_erp_port_block(port, clear);
zfcp_scsi_schedule_rport_block(port);
@@ -342,28 +344,26 @@ static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port,
return;
zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_PORT_FORCED,
- port->adapter, port, NULL, id, ref, 0);
+ port->adapter, port, NULL, id, 0);
}
/**
* zfcp_erp_port_forced_reopen - Forced close of port and open again
* @port: Port to force close and to reopen.
+ * @clear: Status flags to clear.
* @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
*/
-void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id,
- void *ref)
+void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id)
{
unsigned long flags;
struct zfcp_adapter *adapter = port->adapter;
write_lock_irqsave(&adapter->erp_lock, flags);
- _zfcp_erp_port_forced_reopen(port, clear, id, ref);
+ _zfcp_erp_port_forced_reopen(port, clear, id);
write_unlock_irqrestore(&adapter->erp_lock, flags);
}
-static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id,
- void *ref)
+static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id)
{
zfcp_erp_port_block(port, clear);
zfcp_scsi_schedule_rport_block(port);
@@ -375,24 +375,25 @@ static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id,
}
return zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_PORT,
- port->adapter, port, NULL, id, ref, 0);
+ port->adapter, port, NULL, id, 0);
}
/**
* zfcp_erp_port_reopen - trigger remote port recovery
* @port: port to recover
* @clear_mask: flags in port status to be cleared
+ * @id: Id for debug trace event.
*
* Returns 0 if recovery has been triggered, < 0 if not.
*/
-int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id, void *ref)
+int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id)
{
int retval;
unsigned long flags;
struct zfcp_adapter *adapter = port->adapter;
write_lock_irqsave(&adapter->erp_lock, flags);
- retval = _zfcp_erp_port_reopen(port, clear, id, ref);
+ retval = _zfcp_erp_port_reopen(port, clear, id);
write_unlock_irqrestore(&adapter->erp_lock, flags);
return retval;
@@ -405,7 +406,7 @@ static void zfcp_erp_lun_block(struct scsi_device *sdev, int clear_mask)
}
static void _zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
- void *ref, u32 act_status)
+ u32 act_status)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
@@ -416,17 +417,18 @@ static void _zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
return;
zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_LUN, adapter,
- zfcp_sdev->port, sdev, id, ref, act_status);
+ zfcp_sdev->port, sdev, id, act_status);
}
/**
* zfcp_erp_lun_reopen - initiate reopen of a LUN
* @sdev: SCSI device / LUN to be reopened
* @clear_mask: specifies flags in LUN status to be cleared
+ * @id: Id for debug trace event.
+ *
* Return: 0 on success, < 0 on error
*/
-void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
- void *ref)
+void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id)
{
unsigned long flags;
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
@@ -434,7 +436,7 @@ void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
struct zfcp_adapter *adapter = port->adapter;
write_lock_irqsave(&adapter->erp_lock, flags);
- _zfcp_erp_lun_reopen(sdev, clear, id, ref, 0);
+ _zfcp_erp_lun_reopen(sdev, clear, id, 0);
write_unlock_irqrestore(&adapter->erp_lock, flags);
}
@@ -443,13 +445,11 @@ void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
* @sdev: SCSI device / LUN to shut down.
* @clear: Status flags to clear.
* @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
*/
-void zfcp_erp_lun_shutdown(struct scsi_device *sdev, int clear, char *id,
- void *ref)
+void zfcp_erp_lun_shutdown(struct scsi_device *sdev, int clear, char *id)
{
int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
- zfcp_erp_lun_reopen(sdev, clear | flags, id, ref);
+ zfcp_erp_lun_reopen(sdev, clear | flags, id);
}
/**
@@ -471,7 +471,7 @@ void zfcp_erp_lun_shutdown_wait(struct scsi_device *sdev, char *id)
int clear = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
write_lock_irqsave(&adapter->erp_lock, flags);
- _zfcp_erp_lun_reopen(sdev, clear, id, NULL, ZFCP_STATUS_ERP_NO_REF);
+ _zfcp_erp_lun_reopen(sdev, clear, id, ZFCP_STATUS_ERP_NO_REF);
write_unlock_irqrestore(&adapter->erp_lock, flags);
zfcp_erp_wait(adapter);
@@ -485,14 +485,14 @@ static int status_change_set(unsigned long mask, atomic_t *status)
static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)
{
if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status))
- zfcp_dbf_rec_adapter("eraubl1", NULL, adapter->dbf);
+ zfcp_dbf_rec_run("eraubl1", &adapter->erp_action);
atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status);
}
static void zfcp_erp_port_unblock(struct zfcp_port *port)
{
if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status))
- zfcp_dbf_rec_port("erpubl1", NULL, port);
+ zfcp_dbf_rec_run("erpubl1", &port->erp_action);
atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status);
}
@@ -501,14 +501,14 @@ static void zfcp_erp_lun_unblock(struct scsi_device *sdev)
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &zfcp_sdev->status))
- zfcp_dbf_rec_lun("erlubl1", NULL, sdev);
+ zfcp_dbf_rec_run("erlubl1", &sdev_to_zfcp(sdev)->erp_action);
atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &zfcp_sdev->status);
}
static void zfcp_erp_action_to_running(struct zfcp_erp_action *erp_action)
{
list_move(&erp_action->list, &erp_action->adapter->erp_running_head);
- zfcp_dbf_rec_action("erator1", erp_action);
+ zfcp_dbf_rec_run("erator1", erp_action);
}
static void zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *act)
@@ -525,11 +525,11 @@ static void zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *act)
if (act->status & (ZFCP_STATUS_ERP_DISMISSED |
ZFCP_STATUS_ERP_TIMEDOUT)) {
req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
- zfcp_dbf_rec_action("erscf_1", act);
+ zfcp_dbf_rec_run("erscf_1", act);
req->erp_action = NULL;
}
if (act->status & ZFCP_STATUS_ERP_TIMEDOUT)
- zfcp_dbf_rec_action("erscf_2", act);
+ zfcp_dbf_rec_run("erscf_2", act);
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED)
act->fsf_req_id = 0;
} else
@@ -580,40 +580,42 @@ static void zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action)
}
static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,
- int clear, char *id, void *ref)
+ int clear, char *id)
{
struct zfcp_port *port;
read_lock(&adapter->port_list_lock);
list_for_each_entry(port, &adapter->port_list, list)
- _zfcp_erp_port_reopen(port, clear, id, ref);
+ _zfcp_erp_port_reopen(port, clear, id);
read_unlock(&adapter->port_list_lock);
}
static void _zfcp_erp_lun_reopen_all(struct zfcp_port *port, int clear,
- char *id, void *ref)
+ char *id)
{
struct scsi_device *sdev;
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ spin_lock(port->adapter->scsi_host->host_lock);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port)
- _zfcp_erp_lun_reopen(sdev, clear, id, ref, 0);
+ _zfcp_erp_lun_reopen(sdev, clear, id, 0);
+ spin_unlock(port->adapter->scsi_host->host_lock);
}
static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
{
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
- _zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1", NULL);
+ _zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1");
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
- _zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2", NULL);
+ _zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2");
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
- _zfcp_erp_port_reopen(act->port, 0, "ersff_3", NULL);
+ _zfcp_erp_port_reopen(act->port, 0, "ersff_3");
break;
case ZFCP_ERP_ACTION_REOPEN_LUN:
- _zfcp_erp_lun_reopen(act->sdev, 0, "ersff_4", NULL, 0);
+ _zfcp_erp_lun_reopen(act->sdev, 0, "ersff_4", 0);
break;
}
}
@@ -622,13 +624,13 @@ static void zfcp_erp_strategy_followup_success(struct zfcp_erp_action *act)
{
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
- _zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1", NULL);
+ _zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1");
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
- _zfcp_erp_port_reopen(act->port, 0, "ersfs_2", NULL);
+ _zfcp_erp_port_reopen(act->port, 0, "ersfs_2");
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
- _zfcp_erp_lun_reopen_all(act->port, 0, "ersfs_3", NULL);
+ _zfcp_erp_lun_reopen_all(act->port, 0, "ersfs_3");
break;
}
}
@@ -647,17 +649,6 @@ static void zfcp_erp_wakeup(struct zfcp_adapter *adapter)
read_unlock_irqrestore(&adapter->erp_lock, flags);
}
-static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *act)
-{
- struct zfcp_qdio *qdio = act->adapter->qdio;
-
- if (zfcp_qdio_open(qdio))
- return ZFCP_ERP_FAILED;
- init_waitqueue_head(&qdio->req_q_wq);
- atomic_set_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &act->adapter->status);
- return ZFCP_ERP_SUCCEEDED;
-}
-
static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter)
{
struct zfcp_port *port;
@@ -665,7 +656,7 @@ static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter)
adapter->peer_d_id);
if (IS_ERR(port)) /* error or port already attached */
return;
- _zfcp_erp_port_reopen(port, 0, "ereptp1", NULL);
+ _zfcp_erp_port_reopen(port, 0, "ereptp1");
}
static int zfcp_erp_adapter_strat_fsf_xconf(struct zfcp_erp_action *erp_action)
@@ -688,10 +679,8 @@ static int zfcp_erp_adapter_strat_fsf_xconf(struct zfcp_erp_action *erp_action)
return ZFCP_ERP_FAILED;
}
- zfcp_dbf_rec_thread_lock("erasfx1", adapter->dbf);
wait_event(adapter->erp_ready_wq,
!list_empty(&adapter->erp_ready_head));
- zfcp_dbf_rec_thread_lock("erasfx2", adapter->dbf);
if (erp_action->status & ZFCP_STATUS_ERP_TIMEDOUT)
break;
@@ -730,10 +719,10 @@ static int zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *act)
if (ret)
return ZFCP_ERP_FAILED;
- zfcp_dbf_rec_thread_lock("erasox1", adapter->dbf);
+ zfcp_dbf_rec_run("erasox1", act);
wait_event(adapter->erp_ready_wq,
!list_empty(&adapter->erp_ready_head));
- zfcp_dbf_rec_thread_lock("erasox2", adapter->dbf);
+ zfcp_dbf_rec_run("erasox2", act);
if (act->status & ZFCP_STATUS_ERP_TIMEDOUT)
return ZFCP_ERP_FAILED;
@@ -748,7 +737,7 @@ static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *act)
if (zfcp_erp_adapter_strategy_open_fsf_xport(act) == ZFCP_ERP_FAILED)
return ZFCP_ERP_FAILED;
- if (mempool_resize(act->adapter->pool.status_read_data,
+ if (mempool_resize(act->adapter->pool.sr_data,
act->adapter->stat_read_buf_num, GFP_KERNEL))
return ZFCP_ERP_FAILED;
@@ -783,7 +772,7 @@ static int zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
- if (zfcp_erp_adapter_strategy_open_qdio(act)) {
+ if (zfcp_qdio_open(adapter->qdio)) {
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&adapter->status);
@@ -966,8 +955,7 @@ static void zfcp_erp_lun_strategy_clearstati(struct scsi_device *sdev)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
- atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
- ZFCP_STATUS_LUN_SHARED | ZFCP_STATUS_LUN_READONLY,
+ atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED,
&zfcp_sdev->status);
}
@@ -1161,7 +1149,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
if (zfcp_erp_strat_change_det(&adapter->status, erp_status)) {
_zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_COMMON_ERP_FAILED,
- "ersscg1", NULL);
+ "ersscg1");
return ZFCP_ERP_EXIT;
}
break;
@@ -1171,7 +1159,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
if (zfcp_erp_strat_change_det(&port->status, erp_status)) {
_zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
- "ersscg2", NULL);
+ "ersscg2");
return ZFCP_ERP_EXIT;
}
break;
@@ -1181,7 +1169,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
if (zfcp_erp_strat_change_det(&zfcp_sdev->status, erp_status)) {
_zfcp_erp_lun_reopen(sdev,
ZFCP_STATUS_COMMON_ERP_FAILED,
- "ersscg3", NULL, 0);
+ "ersscg3", 0);
return ZFCP_ERP_EXIT;
}
break;
@@ -1201,7 +1189,7 @@ static void zfcp_erp_action_dequeue(struct zfcp_erp_action *erp_action)
}
list_del(&erp_action->list);
- zfcp_dbf_rec_action("eractd1", erp_action);
+ zfcp_dbf_rec_run("eractd1", erp_action);
switch (erp_action->action) {
case ZFCP_ERP_ACTION_REOPEN_LUN:
@@ -1246,9 +1234,11 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (result == ZFCP_ERP_SUCCEEDED) {
register_service_level(&adapter->service_level);
- queue_work(adapter->work_queue, &adapter->scan_work);
+ zfcp_fc_conditional_port_scan(adapter);
+ queue_work(adapter->work_queue, &adapter->ns_up_work);
} else
unregister_service_level(&adapter->service_level);
+
kref_put(&adapter->ref, zfcp_adapter_release);
break;
}
@@ -1308,7 +1298,7 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
erp_action->status |= ZFCP_STATUS_ERP_LOWMEM;
}
if (adapter->erp_total_count == adapter->erp_low_mem_count)
- _zfcp_erp_adapter_reopen(adapter, 0, "erstgy1", NULL);
+ _zfcp_erp_adapter_reopen(adapter, 0, "erstgy1");
else {
zfcp_erp_strategy_memwait(erp_action);
retval = ZFCP_ERP_CONTINUES;
@@ -1352,11 +1342,9 @@ static int zfcp_erp_thread(void *data)
unsigned long flags;
for (;;) {
- zfcp_dbf_rec_thread_lock("erthrd1", adapter->dbf);
wait_event_interruptible(adapter->erp_ready_wq,
!list_empty(&adapter->erp_ready_head) ||
kthread_should_stop());
- zfcp_dbf_rec_thread_lock("erthrd2", adapter->dbf);
if (kthread_should_stop())
break;
@@ -1451,8 +1439,10 @@ void zfcp_erp_set_adapter_status(struct zfcp_adapter *adapter, u32 mask)
atomic_set_mask(common_mask, &port->status);
read_unlock_irqrestore(&adapter->port_list_lock, flags);
- shost_for_each_device(sdev, adapter->scsi_host)
+ spin_lock_irqsave(adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, adapter->scsi_host)
atomic_set_mask(common_mask, &sdev_to_zfcp(sdev)->status);
+ spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);
}
/**
@@ -1486,11 +1476,13 @@ void zfcp_erp_clear_adapter_status(struct zfcp_adapter *adapter, u32 mask)
}
read_unlock_irqrestore(&adapter->port_list_lock, flags);
- shost_for_each_device(sdev, adapter->scsi_host) {
+ spin_lock_irqsave(adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, adapter->scsi_host) {
atomic_clear_mask(common_mask, &sdev_to_zfcp(sdev)->status);
if (clear_counter)
atomic_set(&sdev_to_zfcp(sdev)->erp_counter, 0);
}
+ spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);
}
/**
@@ -1504,16 +1496,19 @@ void zfcp_erp_set_port_status(struct zfcp_port *port, u32 mask)
{
struct scsi_device *sdev;
u32 common_mask = mask & ZFCP_COMMON_FLAGS;
+ unsigned long flags;
atomic_set_mask(mask, &port->status);
if (!common_mask)
return;
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port)
atomic_set_mask(common_mask,
&sdev_to_zfcp(sdev)->status);
+ spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);
}
/**
@@ -1528,6 +1523,7 @@ void zfcp_erp_clear_port_status(struct zfcp_port *port, u32 mask)
struct scsi_device *sdev;
u32 common_mask = mask & ZFCP_COMMON_FLAGS;
u32 clear_counter = mask & ZFCP_STATUS_COMMON_ERP_FAILED;
+ unsigned long flags;
atomic_clear_mask(mask, &port->status);
@@ -1537,13 +1533,15 @@ void zfcp_erp_clear_port_status(struct zfcp_port *port, u32 mask)
if (clear_counter)
atomic_set(&port->erp_counter, 0);
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port) {
atomic_clear_mask(common_mask,
&sdev_to_zfcp(sdev)->status);
if (clear_counter)
atomic_set(&sdev_to_zfcp(sdev)->erp_counter, 0);
}
+ spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);
}
/**
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index bf8f3e51483..a9c570a09b8 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -3,7 +3,7 @@
*
* External function declarations.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2010
*/
#ifndef ZFCP_EXT_H
@@ -21,71 +21,45 @@ extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, u64, u32,
u32);
extern void zfcp_sg_free_table(struct scatterlist *, int);
extern int zfcp_sg_setup_table(struct scatterlist *, int);
-extern void zfcp_device_unregister(struct device *,
- const struct attribute_group *);
extern void zfcp_adapter_release(struct kref *);
extern void zfcp_adapter_unregister(struct zfcp_adapter *);
/* zfcp_ccw.c */
-extern int zfcp_ccw_priv_sch(struct zfcp_adapter *);
extern struct ccw_driver zfcp_ccw_driver;
extern struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *);
extern void zfcp_ccw_adapter_put(struct zfcp_adapter *);
-/* zfcp_cfdc.c */
-extern struct miscdevice zfcp_cfdc_misc;
-extern void zfcp_cfdc_port_denied(struct zfcp_port *, union fsf_status_qual *);
-extern void zfcp_cfdc_lun_denied(struct scsi_device *, union fsf_status_qual *);
-extern void zfcp_cfdc_lun_shrng_vltn(struct scsi_device *,
- union fsf_status_qual *);
-extern int zfcp_cfdc_open_lun_eval(struct scsi_device *,
- struct fsf_qtcb_bottom_support *);
-extern void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *);
-
-
/* zfcp_dbf.c */
extern int zfcp_dbf_adapter_register(struct zfcp_adapter *);
-extern void zfcp_dbf_adapter_unregister(struct zfcp_dbf *);
-extern void zfcp_dbf_rec_thread(char *, struct zfcp_dbf *);
-extern void zfcp_dbf_rec_thread_lock(char *, struct zfcp_dbf *);
-extern void zfcp_dbf_rec_adapter(char *, void *, struct zfcp_dbf *);
-extern void zfcp_dbf_rec_port(char *, void *, struct zfcp_port *);
-extern void zfcp_dbf_rec_lun(char *, void *, struct scsi_device *);
-extern void zfcp_dbf_rec_trigger(char *, void *, u8, u8, void *,
- struct zfcp_adapter *, struct zfcp_port *,
- struct scsi_device *);
-extern void zfcp_dbf_rec_action(char *, struct zfcp_erp_action *);
-extern void _zfcp_dbf_hba_fsf_response(const char *, int, struct zfcp_fsf_req *,
- struct zfcp_dbf *);
-extern void _zfcp_dbf_hba_fsf_unsol(const char *, int level, struct zfcp_dbf *,
- struct fsf_status_read_buffer *);
-extern void zfcp_dbf_hba_qdio(struct zfcp_dbf *, unsigned int, int, int);
+extern void zfcp_dbf_adapter_unregister(struct zfcp_adapter *);
+extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *,
+ struct zfcp_port *, struct scsi_device *, u8, u8);
+extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
+extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_hba_fsf_res(char *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *, u32);
-extern void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *);
-extern void zfcp_dbf_san_els_request(struct zfcp_fsf_req *);
-extern void zfcp_dbf_san_els_response(struct zfcp_fsf_req *);
-extern void zfcp_dbf_san_incoming_els(struct zfcp_fsf_req *);
-extern void _zfcp_dbf_scsi(const char *, const char *, int, struct zfcp_dbf *,
- struct scsi_cmnd *, struct zfcp_fsf_req *,
- unsigned long);
+extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
+extern void zfcp_dbf_hba_basic(char *, struct zfcp_adapter *);
+extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
+extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_scsi(char *, struct scsi_cmnd *, struct zfcp_fsf_req *);
/* zfcp_erp.c */
extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);
extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32);
-extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *, void *);
-extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *,
- void *);
+extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *);
+extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *);
extern void zfcp_erp_set_port_status(struct zfcp_port *, u32);
extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32);
-extern int zfcp_erp_port_reopen(struct zfcp_port *, int, char *, void *);
-extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *, void *);
-extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *,
- void *);
+extern int zfcp_erp_port_reopen(struct zfcp_port *, int, char *);
+extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *);
+extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *);
extern void zfcp_erp_set_lun_status(struct scsi_device *, u32);
extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32);
-extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *, void *);
-extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *, void *);
+extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *);
+extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *);
extern void zfcp_erp_lun_shutdown_wait(struct scsi_device *, char *);
extern int zfcp_erp_thread_setup(struct zfcp_adapter *);
extern void zfcp_erp_thread_kill(struct zfcp_adapter *);
@@ -94,6 +68,7 @@ extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long);
extern void zfcp_erp_timeout_handler(unsigned long);
/* zfcp_fc.c */
+extern struct kmem_cache *zfcp_fc_req_cache;
extern void zfcp_fc_enqueue_event(struct zfcp_adapter *,
enum fc_host_event_code event_code, u32);
extern void zfcp_fc_post_event(struct work_struct *);
@@ -109,8 +84,12 @@ 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 *);
+extern void zfcp_fc_conditional_port_scan(struct zfcp_adapter *);
+extern void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *);
/* zfcp_fsf.c */
+extern struct kmem_cache *zfcp_fsf_qtcb_cache;
extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *);
extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *);
@@ -124,8 +103,6 @@ extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *,
extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *);
extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *,
struct fsf_qtcb_bottom_port *);
-extern struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *,
- struct zfcp_fsf_cfdc *);
extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
extern int zfcp_fsf_status_read(struct zfcp_qdio *);
extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
@@ -151,9 +128,9 @@ extern void zfcp_qdio_close(struct zfcp_qdio *);
extern void zfcp_qdio_siosl(struct zfcp_adapter *);
/* zfcp_scsi.c */
-extern struct zfcp_data zfcp_data;
-extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
-extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
+extern struct scsi_transport_template *zfcp_scsi_transport_template;
+extern int zfcp_scsi_adapter_register(struct zfcp_adapter *);
+extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *);
extern struct fc_function_template zfcp_transport_functions;
extern void zfcp_scsi_rport_work(struct work_struct *);
extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);
@@ -163,9 +140,10 @@ extern void zfcp_scsi_set_prot(struct zfcp_adapter *);
extern void zfcp_scsi_dif_sense_error(struct scsi_cmnd *, int);
/* zfcp_sysfs.c */
-extern struct attribute_group zfcp_sysfs_unit_attrs;
+extern const struct attribute_group *zfcp_unit_attr_groups[];
extern struct attribute_group zfcp_sysfs_adapter_attrs;
-extern struct attribute_group zfcp_sysfs_port_attrs;
+extern const struct attribute_group *zfcp_port_attr_groups[];
+extern struct mutex zfcp_sysfs_port_units_mutex;
extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
extern struct device_attribute *zfcp_sysfs_shost_attrs[];
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 86fd905df48..ca28e1c6611 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -3,7 +3,7 @@
*
* Fibre Channel related functions for the zfcp device driver.
*
- * Copyright IBM Corporation 2008, 2010
+ * Copyright IBM Corp. 2008, 2010
*/
#define KMSG_COMPONENT "zfcp"
@@ -11,11 +11,14 @@
#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"
#include "zfcp_fc.h"
+struct kmem_cache *zfcp_fc_req_cache;
+
static u32 zfcp_fc_rscn_range_mask[] = {
[ELS_ADDR_FMT_PORT] = 0xFFFFFF,
[ELS_ADDR_FMT_AREA] = 0xFFFF00,
@@ -23,6 +26,27 @@ static u32 zfcp_fc_rscn_range_mask[] = {
[ELS_ADDR_FMT_FAB] = 0x000000,
};
+static bool no_auto_port_rescan;
+module_param_named(no_auto_port_rescan, no_auto_port_rescan, bool, 0600);
+MODULE_PARM_DESC(no_auto_port_rescan,
+ "no automatic port_rescan (default off)");
+
+void zfcp_fc_conditional_port_scan(struct zfcp_adapter *adapter)
+{
+ if (no_auto_port_rescan)
+ return;
+
+ queue_work(adapter->work_queue, &adapter->scan_work);
+}
+
+void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *adapter)
+{
+ if (!no_auto_port_rescan)
+ return;
+
+ queue_work(adapter->work_queue, &adapter->scan_work);
+}
+
/**
* zfcp_fc_post_event - post event to userspace via fc_transport
* @work: work struct with enqueued events
@@ -174,7 +198,7 @@ static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
if (!port->d_id)
zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
- "fcrscn1", NULL);
+ "fcrscn1");
}
read_unlock_irqrestore(&adapter->port_list_lock, flags);
}
@@ -203,7 +227,7 @@ static void zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req)
zfcp_fc_enqueue_event(fsf_req->adapter, FCH_EVT_RSCN,
*(u32 *)page);
}
- queue_work(fsf_req->adapter->work_queue, &fsf_req->adapter->scan_work);
+ zfcp_fc_conditional_port_scan(fsf_req->adapter);
}
static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn)
@@ -215,7 +239,7 @@ static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn)
read_lock_irqsave(&adapter->port_list_lock, flags);
list_for_each_entry(port, &adapter->port_list, list)
if (port->wwpn == wwpn) {
- zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req);
+ zfcp_erp_port_forced_reopen(port, 0, "fciwwp1");
break;
}
read_unlock_irqrestore(&adapter->port_list_lock, flags);
@@ -251,7 +275,7 @@ void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req)
(struct fsf_status_read_buffer *) fsf_req->data;
unsigned int els_type = status_buffer->payload.data[0];
- zfcp_dbf_san_incoming_els(fsf_req);
+ zfcp_dbf_san_in_els("fciels1", fsf_req);
if (els_type == ELS_PLOGI)
zfcp_fc_incoming_plogi(fsf_req);
else if (els_type == ELS_LOGO)
@@ -260,24 +284,18 @@ void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req)
zfcp_fc_incoming_rscn(fsf_req);
}
-static void zfcp_fc_ns_gid_pn_eval(void *data)
+static void zfcp_fc_ns_gid_pn_eval(struct zfcp_fc_req *fc_req)
{
- struct zfcp_fc_gid_pn *gid_pn = data;
- struct zfcp_fsf_ct_els *ct = &gid_pn->ct;
- struct zfcp_fc_gid_pn_req *gid_pn_req = sg_virt(ct->req);
- struct zfcp_fc_gid_pn_resp *gid_pn_resp = sg_virt(ct->resp);
- struct zfcp_port *port = gid_pn->port;
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_gid_pn_rsp *gid_pn_rsp = &fc_req->u.gid_pn.rsp;
- if (ct->status)
+ if (ct_els->status)
return;
- if (gid_pn_resp->ct_hdr.ct_cmd != FC_FS_ACC)
+ if (gid_pn_rsp->ct_hdr.ct_cmd != FC_FS_ACC)
return;
- /* paranoia */
- if (gid_pn_req->gid_pn.fn_wwpn != port->wwpn)
- return;
/* looks like a valid d_id */
- port->d_id = ntoh24(gid_pn_resp->gid_pn.fp_fid);
+ ct_els->port->d_id = ntoh24(gid_pn_rsp->gid_pn.fp_fid);
}
static void zfcp_fc_complete(void *data)
@@ -285,69 +303,73 @@ static void zfcp_fc_complete(void *data)
complete(data);
}
+static void zfcp_fc_ct_ns_init(struct fc_ct_hdr *ct_hdr, u16 cmd, u16 mr_size)
+{
+ ct_hdr->ct_rev = FC_CT_REV;
+ ct_hdr->ct_fs_type = FC_FST_DIR;
+ ct_hdr->ct_fs_subtype = FC_NS_SUBTYPE;
+ ct_hdr->ct_cmd = cmd;
+ ct_hdr->ct_mr_size = mr_size / 4;
+}
+
static int zfcp_fc_ns_gid_pn_request(struct zfcp_port *port,
- struct zfcp_fc_gid_pn *gid_pn)
+ struct zfcp_fc_req *fc_req)
{
struct zfcp_adapter *adapter = port->adapter;
DECLARE_COMPLETION_ONSTACK(completion);
+ struct zfcp_fc_gid_pn_req *gid_pn_req = &fc_req->u.gid_pn.req;
+ struct zfcp_fc_gid_pn_rsp *gid_pn_rsp = &fc_req->u.gid_pn.rsp;
int ret;
/* setup parameters for send generic command */
- gid_pn->port = port;
- gid_pn->ct.handler = zfcp_fc_complete;
- gid_pn->ct.handler_data = &completion;
- gid_pn->ct.req = &gid_pn->sg_req;
- gid_pn->ct.resp = &gid_pn->sg_resp;
- sg_init_one(&gid_pn->sg_req, &gid_pn->gid_pn_req,
- sizeof(struct zfcp_fc_gid_pn_req));
- sg_init_one(&gid_pn->sg_resp, &gid_pn->gid_pn_resp,
- sizeof(struct zfcp_fc_gid_pn_resp));
-
- /* setup nameserver request */
- gid_pn->gid_pn_req.ct_hdr.ct_rev = FC_CT_REV;
- gid_pn->gid_pn_req.ct_hdr.ct_fs_type = FC_FST_DIR;
- gid_pn->gid_pn_req.ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
- gid_pn->gid_pn_req.ct_hdr.ct_options = 0;
- gid_pn->gid_pn_req.ct_hdr.ct_cmd = FC_NS_GID_PN;
- gid_pn->gid_pn_req.ct_hdr.ct_mr_size = ZFCP_FC_CT_SIZE_PAGE / 4;
- gid_pn->gid_pn_req.gid_pn.fn_wwpn = port->wwpn;
-
- ret = zfcp_fsf_send_ct(&adapter->gs->ds, &gid_pn->ct,
+ fc_req->ct_els.port = port;
+ fc_req->ct_els.handler = zfcp_fc_complete;
+ fc_req->ct_els.handler_data = &completion;
+ fc_req->ct_els.req = &fc_req->sg_req;
+ fc_req->ct_els.resp = &fc_req->sg_rsp;
+ sg_init_one(&fc_req->sg_req, gid_pn_req, sizeof(*gid_pn_req));
+ sg_init_one(&fc_req->sg_rsp, gid_pn_rsp, sizeof(*gid_pn_rsp));
+
+ zfcp_fc_ct_ns_init(&gid_pn_req->ct_hdr,
+ FC_NS_GID_PN, ZFCP_FC_CT_SIZE_PAGE);
+ gid_pn_req->gid_pn.fn_wwpn = port->wwpn;
+
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, &fc_req->ct_els,
adapter->pool.gid_pn_req,
ZFCP_FC_CTELS_TMO);
if (!ret) {
wait_for_completion(&completion);
- zfcp_fc_ns_gid_pn_eval(gid_pn);
+ zfcp_fc_ns_gid_pn_eval(fc_req);
}
return ret;
}
/**
- * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
+ * zfcp_fc_ns_gid_pn - initiate GID_PN nameserver request
* @port: port where GID_PN request is needed
* return: -ENOMEM on error, 0 otherwise
*/
static int zfcp_fc_ns_gid_pn(struct zfcp_port *port)
{
int ret;
- struct zfcp_fc_gid_pn *gid_pn;
+ struct zfcp_fc_req *fc_req;
struct zfcp_adapter *adapter = port->adapter;
- gid_pn = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC);
- if (!gid_pn)
+ fc_req = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC);
+ if (!fc_req)
return -ENOMEM;
- memset(gid_pn, 0, sizeof(*gid_pn));
+ memset(fc_req, 0, sizeof(*fc_req));
ret = zfcp_fc_wka_port_get(&adapter->gs->ds);
if (ret)
goto out;
- ret = zfcp_fc_ns_gid_pn_request(port, gid_pn);
+ ret = zfcp_fc_ns_gid_pn_request(port, fc_req);
zfcp_fc_wka_port_put(&adapter->gs->ds);
out:
- mempool_free(gid_pn, adapter->pool.gid_pn);
+ mempool_free(fc_req, adapter->pool.gid_pn);
return ret;
}
@@ -360,7 +382,7 @@ void zfcp_fc_port_did_lookup(struct work_struct *work)
ret = zfcp_fc_ns_gid_pn(port);
if (ret) {
/* could not issue gid_pn for some reason */
- zfcp_erp_adapter_reopen(port->adapter, 0, "fcgpn_1", NULL);
+ zfcp_erp_adapter_reopen(port->adapter, 0, "fcgpn_1");
goto out;
}
@@ -369,7 +391,7 @@ void zfcp_fc_port_did_lookup(struct work_struct *work)
goto out;
}
- zfcp_erp_port_reopen(port, 0, "fcgpn_3", NULL);
+ zfcp_erp_port_reopen(port, 0, "fcgpn_3");
out:
put_device(&port->dev);
}
@@ -419,14 +441,14 @@ void zfcp_fc_plogi_evaluate(struct zfcp_port *port, struct fc_els_flogi *plogi)
static void zfcp_fc_adisc_handler(void *data)
{
- struct zfcp_fc_els_adisc *adisc = data;
- struct zfcp_port *port = adisc->els.port;
- struct fc_els_adisc *adisc_resp = &adisc->adisc_resp;
+ struct zfcp_fc_req *fc_req = data;
+ struct zfcp_port *port = fc_req->ct_els.port;
+ struct fc_els_adisc *adisc_resp = &fc_req->u.adisc.rsp;
- if (adisc->els.status) {
+ if (fc_req->ct_els.status) {
/* request rejected or timed out */
zfcp_erp_port_forced_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
- "fcadh_1", NULL);
+ "fcadh_1");
goto out;
}
@@ -436,7 +458,7 @@ static void zfcp_fc_adisc_handler(void *data)
if ((port->wwpn != adisc_resp->adisc_wwpn) ||
!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) {
zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
- "fcadh_2", NULL);
+ "fcadh_2");
goto out;
}
@@ -445,42 +467,42 @@ static void zfcp_fc_adisc_handler(void *data)
out:
atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
put_device(&port->dev);
- kmem_cache_free(zfcp_data.adisc_cache, adisc);
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
}
static int zfcp_fc_adisc(struct zfcp_port *port)
{
- struct zfcp_fc_els_adisc *adisc;
+ struct zfcp_fc_req *fc_req;
struct zfcp_adapter *adapter = port->adapter;
+ struct Scsi_Host *shost = adapter->scsi_host;
int ret;
- adisc = kmem_cache_zalloc(zfcp_data.adisc_cache, GFP_ATOMIC);
- if (!adisc)
+ fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_ATOMIC);
+ if (!fc_req)
return -ENOMEM;
- adisc->els.port = port;
- adisc->els.req = &adisc->req;
- adisc->els.resp = &adisc->resp;
- sg_init_one(adisc->els.req, &adisc->adisc_req,
+ fc_req->ct_els.port = port;
+ fc_req->ct_els.req = &fc_req->sg_req;
+ fc_req->ct_els.resp = &fc_req->sg_rsp;
+ sg_init_one(&fc_req->sg_req, &fc_req->u.adisc.req,
sizeof(struct fc_els_adisc));
- sg_init_one(adisc->els.resp, &adisc->adisc_resp,
+ sg_init_one(&fc_req->sg_rsp, &fc_req->u.adisc.rsp,
sizeof(struct fc_els_adisc));
- adisc->els.handler = zfcp_fc_adisc_handler;
- adisc->els.handler_data = adisc;
+ fc_req->ct_els.handler = zfcp_fc_adisc_handler;
+ fc_req->ct_els.handler_data = fc_req;
/* acc. to FC-FS, hard_nport_id in ADISC should not be set for ports
without FC-AL-2 capability, so we don't set it */
- adisc->adisc_req.adisc_wwpn = fc_host_port_name(adapter->scsi_host);
- adisc->adisc_req.adisc_wwnn = fc_host_node_name(adapter->scsi_host);
- adisc->adisc_req.adisc_cmd = ELS_ADISC;
- hton24(adisc->adisc_req.adisc_port_id,
- fc_host_port_id(adapter->scsi_host));
+ fc_req->u.adisc.req.adisc_wwpn = fc_host_port_name(shost);
+ fc_req->u.adisc.req.adisc_wwnn = fc_host_node_name(shost);
+ fc_req->u.adisc.req.adisc_cmd = ELS_ADISC;
+ hton24(fc_req->u.adisc.req.adisc_port_id, fc_host_port_id(shost));
- ret = zfcp_fsf_send_els(adapter, port->d_id, &adisc->els,
+ ret = zfcp_fsf_send_els(adapter, port->d_id, &fc_req->ct_els,
ZFCP_FC_CTELS_TMO);
if (ret)
- kmem_cache_free(zfcp_data.adisc_cache, adisc);
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
return ret;
}
@@ -507,7 +529,7 @@ void zfcp_fc_link_test_work(struct work_struct *work)
/* send of ADISC was not possible */
atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
- zfcp_erp_port_forced_reopen(port, 0, "fcltwk1", NULL);
+ zfcp_erp_port_forced_reopen(port, 0, "fcltwk1");
out:
put_device(&port->dev);
@@ -528,68 +550,42 @@ void zfcp_fc_test_link(struct zfcp_port *port)
put_device(&port->dev);
}
-static void zfcp_free_sg_env(struct zfcp_fc_gpn_ft *gpn_ft, int buf_num)
+static struct zfcp_fc_req *zfcp_alloc_sg_env(int buf_num)
{
- struct scatterlist *sg = &gpn_ft->sg_req;
+ struct zfcp_fc_req *fc_req;
- kmem_cache_free(zfcp_data.gpn_ft_cache, sg_virt(sg));
- zfcp_sg_free_table(gpn_ft->sg_resp, buf_num);
-
- kfree(gpn_ft);
-}
-
-static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num)
-{
- struct zfcp_fc_gpn_ft *gpn_ft;
- struct zfcp_fc_gpn_ft_req *req;
-
- gpn_ft = kzalloc(sizeof(*gpn_ft), GFP_KERNEL);
- if (!gpn_ft)
+ fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_KERNEL);
+ if (!fc_req)
return NULL;
- req = kmem_cache_zalloc(zfcp_data.gpn_ft_cache, GFP_KERNEL);
- if (!req) {
- kfree(gpn_ft);
- gpn_ft = NULL;
- goto out;
+ if (zfcp_sg_setup_table(&fc_req->sg_rsp, buf_num)) {
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
+ return NULL;
}
- sg_init_one(&gpn_ft->sg_req, req, sizeof(*req));
- if (zfcp_sg_setup_table(gpn_ft->sg_resp, buf_num)) {
- zfcp_free_sg_env(gpn_ft, buf_num);
- gpn_ft = NULL;
- }
-out:
- return gpn_ft;
-}
+ sg_init_one(&fc_req->sg_req, &fc_req->u.gpn_ft.req,
+ sizeof(struct zfcp_fc_gpn_ft_req));
+ return fc_req;
+}
-static int zfcp_fc_send_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
+static int zfcp_fc_send_gpn_ft(struct zfcp_fc_req *fc_req,
struct zfcp_adapter *adapter, int max_bytes)
{
- struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
- struct zfcp_fc_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req);
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_gpn_ft_req *req = &fc_req->u.gpn_ft.req;
DECLARE_COMPLETION_ONSTACK(completion);
int ret;
- /* prepare CT IU for GPN_FT */
- req->ct_hdr.ct_rev = FC_CT_REV;
- req->ct_hdr.ct_fs_type = FC_FST_DIR;
- req->ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
- req->ct_hdr.ct_options = 0;
- req->ct_hdr.ct_cmd = FC_NS_GPN_FT;
- req->ct_hdr.ct_mr_size = max_bytes / 4;
- req->gpn_ft.fn_domain_id_scope = 0;
- req->gpn_ft.fn_area_id_scope = 0;
+ zfcp_fc_ct_ns_init(&req->ct_hdr, FC_NS_GPN_FT, max_bytes);
req->gpn_ft.fn_fc4_type = FC_TYPE_FCP;
- /* prepare zfcp_send_ct */
- ct->handler = zfcp_fc_complete;
- ct->handler_data = &completion;
- ct->req = &gpn_ft->sg_req;
- ct->resp = gpn_ft->sg_resp;
+ 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, NULL,
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
ZFCP_FC_CTELS_TMO);
if (!ret)
wait_for_completion(&completion);
@@ -610,11 +606,11 @@ static void zfcp_fc_validate_port(struct zfcp_port *port, struct list_head *lh)
list_move_tail(&port->list, lh);
}
-static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
+static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_req *fc_req,
struct zfcp_adapter *adapter, int max_entries)
{
- struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
- struct scatterlist *sg = gpn_ft->sg_resp;
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct scatterlist *sg = &fc_req->sg_rsp;
struct fc_ct_hdr *hdr = sg_virt(sg);
struct fc_gpn_ft_resp *acc = sg_virt(sg);
struct zfcp_port *port, *tmp;
@@ -623,7 +619,7 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
u32 d_id;
int ret = 0, x, last = 0;
- if (ct->status)
+ if (ct_els->status)
return -EIO;
if (hdr->ct_cmd != FC_FS_ACC) {
@@ -659,7 +655,7 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
port = zfcp_port_enqueue(adapter, acc->fp_wwpn,
ZFCP_STATUS_COMMON_NOESC, d_id);
if (!IS_ERR(port))
- zfcp_erp_port_reopen(port, 0, "fcegpf1", NULL);
+ zfcp_erp_port_reopen(port, 0, "fcegpf1");
else if (PTR_ERR(port) != -EEXIST)
ret = PTR_ERR(port);
}
@@ -671,8 +667,8 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
write_unlock_irqrestore(&adapter->port_list_lock, flags);
list_for_each_entry_safe(port, tmp, &remove_lh, list) {
- zfcp_erp_port_shutdown(port, 0, "fcegpf2", NULL);
- zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
+ zfcp_erp_port_shutdown(port, 0, "fcegpf2");
+ device_unregister(&port->dev);
}
return ret;
@@ -687,7 +683,7 @@ void zfcp_fc_scan_ports(struct work_struct *work)
struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter,
scan_work);
int ret, i;
- struct zfcp_fc_gpn_ft *gpn_ft;
+ struct zfcp_fc_req *fc_req;
int chain, max_entries, buf_num, max_bytes;
chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS;
@@ -702,25 +698,145 @@ void zfcp_fc_scan_ports(struct work_struct *work)
if (zfcp_fc_wka_port_get(&adapter->gs->ds))
return;
- gpn_ft = zfcp_alloc_sg_env(buf_num);
- if (!gpn_ft)
+ fc_req = zfcp_alloc_sg_env(buf_num);
+ if (!fc_req)
goto out;
for (i = 0; i < 3; i++) {
- ret = zfcp_fc_send_gpn_ft(gpn_ft, adapter, max_bytes);
+ ret = zfcp_fc_send_gpn_ft(fc_req, adapter, max_bytes);
if (!ret) {
- ret = zfcp_fc_eval_gpn_ft(gpn_ft, adapter, max_entries);
+ ret = zfcp_fc_eval_gpn_ft(fc_req, adapter, max_entries);
if (ret == -EAGAIN)
ssleep(1);
else
break;
}
}
- zfcp_free_sg_env(gpn_ft, buf_num);
+ zfcp_sg_free_table(&fc_req->sg_rsp, buf_num);
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
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 b464ae01086..b1d2024ed51 100644
--- a/drivers/s390/scsi/zfcp_fc.h
+++ b/drivers/s390/scsi/zfcp_fc.h
@@ -4,7 +4,7 @@
* Fibre Channel related definitions and inline functions for the zfcp
* device driver
*
- * Copyright IBM Corporation 2009
+ * Copyright IBM Corp. 2009
*/
#ifndef ZFCP_FC_H
@@ -64,33 +64,16 @@ struct zfcp_fc_gid_pn_req {
} __packed;
/**
- * struct zfcp_fc_gid_pn_resp - container for ct header plus gid_pn response
+ * struct zfcp_fc_gid_pn_rsp - container for ct header plus gid_pn response
* @ct_hdr: FC GS common transport header
* @gid_pn: GID_PN response
*/
-struct zfcp_fc_gid_pn_resp {
+struct zfcp_fc_gid_pn_rsp {
struct fc_ct_hdr ct_hdr;
struct fc_gid_pn_resp gid_pn;
} __packed;
/**
- * struct zfcp_fc_gid_pn - everything required in zfcp for gid_pn request
- * @ct: data passed to zfcp_fsf for issuing fsf request
- * @sg_req: scatterlist entry for request data
- * @sg_resp: scatterlist entry for response data
- * @gid_pn_req: GID_PN request data
- * @gid_pn_resp: GID_PN response data
- */
-struct zfcp_fc_gid_pn {
- struct zfcp_fsf_ct_els ct;
- struct scatterlist sg_req;
- struct scatterlist sg_resp;
- struct zfcp_fc_gid_pn_req gid_pn_req;
- struct zfcp_fc_gid_pn_resp gid_pn_resp;
- struct zfcp_port *port;
-};
-
-/**
* struct zfcp_fc_gpn_ft - container for ct header plus gpn_ft request
* @ct_hdr: FC GS common transport header
* @gpn_ft: GPN_FT request
@@ -101,41 +84,72 @@ struct zfcp_fc_gpn_ft_req {
} __packed;
/**
- * struct zfcp_fc_gpn_ft_resp - container for ct header plus gpn_ft response
+ * struct zfcp_fc_gspn_req - container for ct header plus GSPN_ID request
* @ct_hdr: FC GS common transport header
- * @gpn_ft: Array of gpn_ft response data to fill one memory page
+ * @gspn: GSPN_ID request
*/
-struct zfcp_fc_gpn_ft_resp {
+struct zfcp_fc_gspn_req {
struct fc_ct_hdr ct_hdr;
- struct fc_gpn_ft_resp gpn_ft[ZFCP_FC_GPN_FT_ENT_PAGE];
+ struct fc_gid_pn_resp gspn;
} __packed;
/**
- * struct zfcp_fc_gpn_ft - zfcp data for gpn_ft request
- * @ct: data passed to zfcp_fsf for issuing fsf request
- * @sg_req: scatter list entry for gpn_ft request
- * @sg_resp: scatter list entries for gpn_ft responses (per memory page)
+ * 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_gpn_ft {
- struct zfcp_fsf_ct_els ct;
- struct scatterlist sg_req;
- struct scatterlist sg_resp[ZFCP_FC_GPN_FT_NUM_BUFS];
-};
+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_els_adisc - everything required in zfcp for issuing ELS ADISC
- * @els: data required for issuing els fsf command
- * @req: scatterlist entry for ELS ADISC request
- * @resp: scatterlist entry for ELS ADISC response
- * @adisc_req: ELS ADISC request data
- * @adisc_resp: ELS ADISC response data
+ * 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_els_adisc {
- struct zfcp_fsf_ct_els els;
- struct scatterlist req;
- struct scatterlist resp;
- struct fc_els_adisc adisc_req;
- struct fc_els_adisc adisc_resp;
+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
+ * @sg_rsp: scatterlist entry for response data
+ * @u: request specific data
+ */
+struct zfcp_fc_req {
+ struct zfcp_fsf_ct_els ct_els;
+ struct scatterlist sg_req;
+ struct scatterlist sg_rsp;
+ union {
+ struct {
+ struct fc_els_adisc req;
+ struct fc_els_adisc rsp;
+ } adisc;
+ struct {
+ struct zfcp_fc_gid_pn_req req;
+ struct zfcp_fc_gid_pn_rsp rsp;
+ } gid_pn;
+ struct {
+ 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;
};
/**
@@ -192,14 +206,21 @@ struct zfcp_fc_wka_ports {
* zfcp_fc_scsi_to_fcp - setup FCP command with data from scsi_cmnd
* @fcp: fcp_cmnd to setup
* @scsi: scsi_cmnd where to get LUN, task attributes/flags and CDB
+ * @tm: task management flags to setup task management command
*/
static inline
-void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi)
+void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi,
+ u8 tm_flags)
{
char tag[2];
int_to_scsilun(scsi->device->lun, (struct scsi_lun *) &fcp->fc_lun);
+ if (unlikely(tm_flags)) {
+ fcp->fc_tm_flags = tm_flags;
+ return;
+ }
+
if (scsi_populate_tag_msg(scsi, tag)) {
switch (tag[0]) {
case MSG_ORDERED_TAG:
@@ -226,19 +247,6 @@ void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi)
}
/**
- * zfcp_fc_fcp_tm - setup FCP command as task management command
- * @fcp: fcp_cmnd to setup
- * @dev: scsi_device where to send the task management command
- * @tm: task management flags to setup tm command
- */
-static inline
-void zfcp_fc_fcp_tm(struct fcp_cmnd *fcp, struct scsi_device *dev, u8 tm_flags)
-{
- int_to_scsilun(dev->lun, (struct scsi_lun *) &fcp->fc_lun);
- fcp->fc_tm_flags |= tm_flags;
-}
-
-/**
* zfcp_fc_evap_fcp_rsp - evaluate FCP RSP IU and update scsi_cmnd accordingly
* @fcp_rsp: FCP RSP IU to evaluate
* @scsi: SCSI command where to update status and sense buffer
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index be031745714..0fe8d5d9511 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -3,7 +3,7 @@
*
* Implementation of FSF commands.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2013
*/
#define KMSG_COMPONENT "zfcp"
@@ -18,12 +18,14 @@
#include "zfcp_qdio.h"
#include "zfcp_reqlist.h"
+struct kmem_cache *zfcp_fsf_qtcb_cache;
+
static void zfcp_fsf_request_timeout_handler(unsigned long data)
{
struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
zfcp_qdio_siosl(adapter);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
- "fsrth_1", NULL);
+ "fsrth_1");
}
static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req,
@@ -65,7 +67,7 @@ static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req)
{
dev_err(&req->adapter->ccw_device->dev, "FCP device not "
"operational because of an unsupported FC class\n");
- zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req);
+ zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
@@ -83,7 +85,7 @@ void zfcp_fsf_req_free(struct zfcp_fsf_req *req)
}
if (likely(req->qtcb))
- kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb);
+ kmem_cache_free(zfcp_fsf_qtcb_cache, req->qtcb);
kfree(req);
}
@@ -98,7 +100,7 @@ static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req)
read_lock_irqsave(&adapter->port_list_lock, flags);
list_for_each_entry(port, &adapter->port_list, list)
if (port->d_id == d_id) {
- zfcp_erp_port_reopen(port, 0, "fssrpc1", req);
+ zfcp_erp_port_reopen(port, 0, "fssrpc1");
break;
}
read_unlock_irqrestore(&adapter->port_list_lock, flags);
@@ -211,13 +213,13 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
struct fsf_status_read_buffer *sr_buf = req->data;
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
- zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf);
- mempool_free(sr_buf, adapter->pool.status_read_data);
+ zfcp_dbf_hba_fsf_uss("fssrh_1", req);
+ mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
zfcp_fsf_req_free(req);
return;
}
- zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf);
+ zfcp_dbf_hba_fsf_uss("fssrh_4", req);
switch (sr_buf->status_type) {
case FSF_STATUS_READ_PORT_CLOSED:
@@ -232,7 +234,7 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
dev_warn(&adapter->ccw_device->dev,
"The error threshold for checksum statistics "
"has been exceeded\n");
- zfcp_dbf_hba_berr(adapter->dbf, req);
+ zfcp_dbf_hba_bit_err("fssrh_3", req);
break;
case FSF_STATUS_READ_LINK_DOWN:
zfcp_fsf_status_read_link_down(req);
@@ -247,25 +249,20 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
ZFCP_STATUS_COMMON_ERP_FAILED,
- "fssrh_2", req);
+ "fssrh_2");
zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0);
break;
case FSF_STATUS_READ_NOTIFICATION_LOST:
- if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED)
- zfcp_cfdc_adapter_access_changed(adapter);
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
- queue_work(adapter->work_queue, &adapter->scan_work);
- break;
- case FSF_STATUS_READ_CFDC_UPDATED:
- zfcp_cfdc_adapter_access_changed(adapter);
+ zfcp_fc_conditional_port_scan(adapter);
break;
case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
adapter->adapter_features = sr_buf->payload.word[0];
break;
}
- mempool_free(sr_buf, adapter->pool.status_read_data);
+ mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
zfcp_fsf_req_free(req);
atomic_inc(&adapter->stat_miss);
@@ -287,7 +284,7 @@ static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req)
"The FCP adapter reported a problem "
"that cannot be recovered\n");
zfcp_qdio_siosl(req->adapter);
- zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req);
+ zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1");
break;
}
/* all non-return stats set FSFREQ_ERROR*/
@@ -304,7 +301,7 @@ static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req)
dev_err(&req->adapter->ccw_device->dev,
"The FCP adapter does not recognize the command 0x%x\n",
req->qtcb->header.fsf_command);
- zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req);
+ zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -335,17 +332,17 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
"QTCB version 0x%x not supported by FCP adapter "
"(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION,
psq->word[0], psq->word[1]);
- zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1");
break;
case FSF_PROT_ERROR_STATE:
case FSF_PROT_SEQ_NUMB_ERROR:
- zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req);
+ zfcp_erp_adapter_reopen(adapter, 0, "fspse_2");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PROT_UNSUPP_QTCB_TYPE:
dev_err(&adapter->ccw_device->dev,
"The QTCB type is not supported by the FCP adapter\n");
- zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3");
break;
case FSF_PROT_HOST_CONNECTION_INITIALIZING:
atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT,
@@ -355,12 +352,12 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
dev_err(&adapter->ccw_device->dev,
"0x%Lx is an ambiguous request identifier\n",
(unsigned long long)qtcb->bottom.support.req_handle);
- zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4");
break;
case FSF_PROT_LINK_DOWN:
zfcp_fsf_link_down_info_eval(req, &psq->link_down_info);
/* go through reopen to flush pending requests */
- zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req);
+ zfcp_erp_adapter_reopen(adapter, 0, "fspse_6");
break;
case FSF_PROT_REEST_QUEUE:
/* All ports should be marked as ready to run again */
@@ -369,14 +366,14 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
ZFCP_STATUS_COMMON_ERP_FAILED,
- "fspse_8", req);
+ "fspse_8");
break;
default:
dev_err(&adapter->ccw_device->dev,
"0x%x is not a valid transfer protocol status\n",
qtcb->prefix.prot_status);
zfcp_qdio_siosl(adapter);
- zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9");
}
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
@@ -435,6 +432,34 @@ void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
}
}
+#define ZFCP_FSF_PORTSPEED_1GBIT (1 << 0)
+#define ZFCP_FSF_PORTSPEED_2GBIT (1 << 1)
+#define ZFCP_FSF_PORTSPEED_4GBIT (1 << 2)
+#define ZFCP_FSF_PORTSPEED_10GBIT (1 << 3)
+#define ZFCP_FSF_PORTSPEED_8GBIT (1 << 4)
+#define ZFCP_FSF_PORTSPEED_16GBIT (1 << 5)
+#define ZFCP_FSF_PORTSPEED_NOT_NEGOTIATED (1 << 15)
+
+static u32 zfcp_fsf_convert_portspeed(u32 fsf_speed)
+{
+ u32 fdmi_speed = 0;
+ if (fsf_speed & ZFCP_FSF_PORTSPEED_1GBIT)
+ fdmi_speed |= FC_PORTSPEED_1GBIT;
+ if (fsf_speed & ZFCP_FSF_PORTSPEED_2GBIT)
+ fdmi_speed |= FC_PORTSPEED_2GBIT;
+ if (fsf_speed & ZFCP_FSF_PORTSPEED_4GBIT)
+ fdmi_speed |= FC_PORTSPEED_4GBIT;
+ if (fsf_speed & ZFCP_FSF_PORTSPEED_10GBIT)
+ fdmi_speed |= FC_PORTSPEED_10GBIT;
+ if (fsf_speed & ZFCP_FSF_PORTSPEED_8GBIT)
+ fdmi_speed |= FC_PORTSPEED_8GBIT;
+ if (fsf_speed & ZFCP_FSF_PORTSPEED_16GBIT)
+ fdmi_speed |= FC_PORTSPEED_16GBIT;
+ if (fsf_speed & ZFCP_FSF_PORTSPEED_NOT_NEGOTIATED)
+ fdmi_speed |= FC_PORTSPEED_NOT_NEGOTIATED;
+ return fdmi_speed;
+}
+
static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
{
struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config;
@@ -453,11 +478,8 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
fc_host_port_name(shost) = nsp->fl_wwpn;
fc_host_node_name(shost) = nsp->fl_wwnn;
- fc_host_port_id(shost) = ntoh24(bottom->s_id);
- fc_host_speed(shost) = bottom->fc_link_speed;
fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3;
- adapter->hydra_version = bottom->adapter_type;
adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK;
adapter->stat_read_buf_num = max(bottom->status_read_buf_num,
(u16)FSF_STATUS_READS_RECOM);
@@ -465,6 +487,19 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
if (fc_host_permanent_port_name(shost) == -1)
fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
+ zfcp_scsi_set_prot(adapter);
+
+ /* no error return above here, otherwise must fix call chains */
+ /* do not evaluate invalid fields */
+ if (req->qtcb->header.fsf_status == FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE)
+ return 0;
+
+ fc_host_port_id(shost) = ntoh24(bottom->s_id);
+ fc_host_speed(shost) =
+ zfcp_fsf_convert_portspeed(bottom->fc_link_speed);
+
+ adapter->hydra_version = bottom->adapter_type;
+
switch (bottom->fc_topology) {
case FSF_TOPO_P2P:
adapter->peer_d_id = ntoh24(bottom->peer_d_id);
@@ -482,12 +517,10 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
dev_err(&adapter->ccw_device->dev,
"Unknown or unsupported arbitrated loop "
"fibre channel topology detected\n");
- zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1");
return -EIO;
}
- zfcp_scsi_set_prot(adapter);
-
return 0;
}
@@ -518,7 +551,7 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
"FCP adapter maximum QTCB size (%d bytes) "
"is too small\n",
bottom->max_qtcb_size);
- zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1");
return;
}
atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
@@ -532,11 +565,17 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
adapter->hydra_version = 0;
+ /* avoids adapter shutdown to be able to recognize
+ * events such as LINK UP */
+ atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
+ &adapter->status);
zfcp_fsf_link_down_info_eval(req,
&qtcb->header.fsf_status_qual.link_down_info);
+ if (zfcp_fsf_exchange_config_evaluate(req))
+ return;
break;
default:
- zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3");
return;
}
@@ -552,14 +591,14 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
dev_err(&adapter->ccw_device->dev,
"The FCP adapter only supports newer "
"control block versions\n");
- zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4");
return;
}
if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) {
dev_err(&adapter->ccw_device->dev,
"The FCP adapter only supports older "
"control block versions\n");
- zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req);
+ zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5");
}
}
@@ -578,7 +617,8 @@ static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req)
} else
fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
fc_host_maxframe_size(shost) = bottom->maximum_frame_size;
- fc_host_supported_speeds(shost) = bottom->supported_speed;
+ fc_host_supported_speeds(shost) =
+ zfcp_fsf_convert_portspeed(bottom->supported_speed);
memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types,
FC_FC4_LIST_SIZE);
memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types,
@@ -628,7 +668,7 @@ static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool)
if (likely(pool))
qtcb = mempool_alloc(pool, GFP_ATOMIC);
else
- qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC);
+ qtcb = kmem_cache_alloc(zfcp_fsf_qtcb_cache, GFP_ATOMIC);
if (unlikely(!qtcb))
return NULL;
@@ -638,7 +678,7 @@ static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool)
}
static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio,
- u32 fsf_cmd, u32 sbtype,
+ u32 fsf_cmd, u8 sbtype,
mempool_t *pool)
{
struct zfcp_adapter *adapter = qdio->adapter;
@@ -695,12 +735,12 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
zfcp_reqlist_add(adapter->req_list, req);
req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free);
- req->issued = get_clock();
+ req->issued = get_tod_clock();
if (zfcp_qdio_send(qdio, &req->qdio_req)) {
del_timer(&req->timer);
/* lookup request again, list might have changed */
zfcp_reqlist_find_rm(adapter->req_list, req_id);
- zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req);
+ zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1");
return -EIO;
}
@@ -723,24 +763,27 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
struct zfcp_adapter *adapter = qdio->adapter;
struct zfcp_fsf_req *req;
struct fsf_status_read_buffer *sr_buf;
+ struct page *page;
int retval = -EIO;
spin_lock_irq(&qdio->req_q_lock);
if (zfcp_qdio_sbal_get(qdio))
goto out;
- req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0,
+ req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS,
+ SBAL_SFLAGS0_TYPE_STATUS,
adapter->pool.status_read_req);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
- sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC);
- if (!sr_buf) {
+ page = mempool_alloc(adapter->pool.sr_data, GFP_ATOMIC);
+ if (!page) {
retval = -ENOMEM;
goto failed_buf;
}
+ sr_buf = page_address(page);
memset(sr_buf, 0, sizeof(*sr_buf));
req->data = sr_buf;
@@ -754,10 +797,11 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
goto out;
failed_req_send:
- mempool_free(sr_buf, adapter->pool.status_read_data);
+ req->data = NULL;
+ mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
failed_buf:
+ zfcp_dbf_hba_fsf_uss("fssr__1", req);
zfcp_fsf_req_free(req);
- zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL);
out:
spin_unlock_irq(&qdio->req_q_lock);
return retval;
@@ -766,24 +810,25 @@ out:
static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
{
struct scsi_device *sdev = req->data;
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+ struct zfcp_scsi_dev *zfcp_sdev;
union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
return;
+ zfcp_sdev = sdev_to_zfcp(sdev);
+
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
if (fsq->word[0] == fsq->word[1]) {
zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0,
- "fsafch1", req);
+ "fsafch1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
break;
case FSF_LUN_HANDLE_NOT_VALID:
if (fsq->word[0] == fsq->word[1]) {
- zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2",
- req);
+ zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
break;
@@ -794,14 +839,13 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
zfcp_erp_set_port_status(zfcp_sdev->port,
ZFCP_STATUS_COMMON_ACCESS_BOXED);
zfcp_erp_port_reopen(zfcp_sdev->port,
- ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3",
- req);
+ ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_BOXED:
zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED);
zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
- "fsafch4", req);
+ "fsafch4");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -838,7 +882,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd)
if (zfcp_qdio_sbal_get(qdio))
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.scsi_abort);
if (IS_ERR(req)) {
req = NULL;
@@ -851,7 +895,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd)
zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
- req->data = zfcp_sdev;
+ req->data = sdev;
req->handler = zfcp_fsf_abort_fcp_command_handler;
req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
req->qtcb->header.port_handle = zfcp_sdev->port->handle;
@@ -882,7 +926,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
switch (header->fsf_status) {
case FSF_GOOD:
- zfcp_dbf_san_ct_response(req);
+ zfcp_dbf_san_res("fsscth2", req);
ct->status = 0;
break;
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
@@ -896,13 +940,11 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
break;
}
break;
- case FSF_ACCESS_DENIED:
- break;
case FSF_PORT_BOXED:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PORT_HANDLE_NOT_VALID:
- zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req);
+ zfcp_erp_adapter_reopen(adapter, 0, "fsscth1");
/* fall through */
case FSF_GENERIC_COMMAND_REJECTED:
case FSF_PAYLOAD_SIZE_MISMATCH:
@@ -933,39 +975,47 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
struct scatterlist *sg_resp)
{
struct zfcp_adapter *adapter = req->adapter;
+ struct zfcp_qdio *qdio = adapter->qdio;
+ struct fsf_qtcb *qtcb = req->qtcb;
u32 feat = adapter->adapter_features;
- int bytes;
- if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) {
- if (!zfcp_qdio_sg_one_sbale(sg_req) ||
- !zfcp_qdio_sg_one_sbale(sg_resp))
- return -EOPNOTSUPP;
+ if (zfcp_adapter_multi_buffer_active(adapter)) {
+ if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req))
+ return -EIO;
+ if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp))
+ return -EIO;
- zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req,
- sg_req, sg_resp);
+ zfcp_qdio_set_data_div(qdio, &req->qdio_req,
+ zfcp_qdio_sbale_count(sg_req));
+ zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
+ zfcp_qdio_set_scount(qdio, &req->qdio_req);
return 0;
}
/* use single, unchained SBAL if it can hold the request */
if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) {
- zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req,
+ zfcp_fsf_setup_ct_els_unchained(qdio, &req->qdio_req,
sg_req, sg_resp);
return 0;
}
- bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req);
- if (bytes <= 0)
+ if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS))
+ return -EOPNOTSUPP;
+
+ if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req))
return -EIO;
- zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req);
- req->qtcb->bottom.support.req_buf_length = bytes;
- zfcp_qdio_skip_to_last_sbale(&req->qdio_req);
- bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req,
- sg_resp);
- req->qtcb->bottom.support.resp_buf_length = bytes;
- if (bytes <= 0)
+ qtcb->bottom.support.req_buf_length = zfcp_qdio_real_bytes(sg_req);
+
+ zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
+ zfcp_qdio_skip_to_last_sbale(qdio, &req->qdio_req);
+
+ if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp))
return -EIO;
- zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req);
+
+ qtcb->bottom.support.resp_buf_length = zfcp_qdio_real_bytes(sg_resp);
+
+ zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
return 0;
}
@@ -1009,7 +1059,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port,
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC,
- SBAL_FLAGS0_TYPE_WRITE_READ, pool);
+ SBAL_SFLAGS0_TYPE_WRITE_READ, pool);
if (IS_ERR(req)) {
ret = PTR_ERR(req);
@@ -1025,7 +1075,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port,
req->qtcb->header.port_handle = wka_port->handle;
req->data = ct;
- zfcp_dbf_san_ct_request(req, wka_port->d_id);
+ zfcp_dbf_san_req("fssct_1", req, wka_port->d_id);
ret = zfcp_fsf_req_send(req);
if (ret)
@@ -1043,7 +1093,6 @@ out:
static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
{
struct zfcp_fsf_ct_els *send_els = req->data;
- struct zfcp_port *port = send_els->port;
struct fsf_qtcb_header *header = &req->qtcb->header;
send_els->status = -EINVAL;
@@ -1053,7 +1102,7 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
switch (header->fsf_status) {
case FSF_GOOD:
- zfcp_dbf_san_els_response(req);
+ zfcp_dbf_san_res("fsselh1", req);
send_els->status = 0;
break;
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
@@ -1073,14 +1122,8 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
case FSF_REQUEST_SIZE_TOO_LARGE:
case FSF_RESPONSE_SIZE_TOO_LARGE:
break;
- case FSF_ACCESS_DENIED:
- if (port) {
- zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- }
- break;
case FSF_SBAL_MISMATCH:
- /* should never occure, avoided in zfcp_fsf_send_els */
+ /* should never occur, avoided in zfcp_fsf_send_els */
/* fall through */
default:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@@ -1107,7 +1150,7 @@ int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS,
- SBAL_FLAGS0_TYPE_WRITE_READ, NULL);
+ SBAL_SFLAGS0_TYPE_WRITE_READ, NULL);
if (IS_ERR(req)) {
ret = PTR_ERR(req);
@@ -1116,7 +1159,8 @@ int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
- zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2);
+ if (!zfcp_adapter_multi_buffer_active(adapter))
+ zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2);
ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout);
@@ -1127,7 +1171,7 @@ int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
req->handler = zfcp_fsf_send_els_handler;
req->data = els;
- zfcp_dbf_san_els_request(req);
+ zfcp_dbf_san_req("fssels1", req, d_id);
ret = zfcp_fsf_req_send(req);
if (ret)
@@ -1153,7 +1197,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
@@ -1165,8 +1209,6 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
req->qtcb->bottom.config.feature_selection =
- FSF_FEATURE_CFDC |
- FSF_FEATURE_LUN_SHARING |
FSF_FEATURE_NOTIFICATION_LOST |
FSF_FEATURE_UPDATE_ALERT;
req->erp_action = erp_action;
@@ -1195,7 +1237,7 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio,
goto out_unlock;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA,
- SBAL_FLAGS0_TYPE_READ, NULL);
+ SBAL_SFLAGS0_TYPE_READ, NULL);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@@ -1206,8 +1248,6 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio,
req->handler = zfcp_fsf_exchange_config_data_handler;
req->qtcb->bottom.config.feature_selection =
- FSF_FEATURE_CFDC |
- FSF_FEATURE_LUN_SHARING |
FSF_FEATURE_NOTIFICATION_LOST |
FSF_FEATURE_UPDATE_ALERT;
@@ -1247,7 +1287,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
@@ -1293,7 +1333,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio,
goto out_unlock;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA,
- SBAL_FLAGS0_TYPE_READ, NULL);
+ SBAL_SFLAGS0_TYPE_READ, NULL);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@@ -1334,10 +1374,6 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
switch (header->fsf_status) {
case FSF_PORT_ALREADY_OPEN:
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- break;
case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
dev_warn(&req->adapter->ccw_device->dev,
"Not enough FCP adapter resources to open "
@@ -1409,7 +1445,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
@@ -1448,7 +1484,7 @@ static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req)
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
- zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req);
+ zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -1475,7 +1511,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
@@ -1520,8 +1556,6 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
/* fall through */
case FSF_ADAPTER_STATUS_AVAILABLE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- /* fall through */
- case FSF_ACCESS_DENIED:
wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
break;
case FSF_GOOD:
@@ -1550,10 +1584,10 @@ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
@@ -1580,7 +1614,7 @@ static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) {
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req);
+ zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1");
}
wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
@@ -1603,10 +1637,10 @@ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
@@ -1638,12 +1672,9 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
switch (header->fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
- zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req);
+ zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
- break;
case FSF_PORT_BOXED:
/* can't use generic zfcp_erp_modify_port_status because
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
@@ -1654,7 +1685,7 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
&sdev_to_zfcp(sdev)->status);
zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED);
zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
- "fscpph2", req);
+ "fscpph2");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -1695,7 +1726,7 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
@@ -1727,40 +1758,45 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
struct scsi_device *sdev = req->data;
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+ struct zfcp_scsi_dev *zfcp_sdev;
struct fsf_qtcb_header *header = &req->qtcb->header;
- struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support;
+ union fsf_status_qual *qual = &header->fsf_status_qual;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
return;
+ zfcp_sdev = sdev_to_zfcp(sdev);
+
atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
- ZFCP_STATUS_COMMON_ACCESS_BOXED |
- ZFCP_STATUS_LUN_SHARED |
- ZFCP_STATUS_LUN_READONLY,
+ ZFCP_STATUS_COMMON_ACCESS_BOXED,
&zfcp_sdev->status);
switch (header->fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
- zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1", req);
+ zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1");
/* fall through */
case FSF_LUN_ALREADY_OPEN:
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- break;
case FSF_PORT_BOXED:
zfcp_erp_set_port_status(zfcp_sdev->port,
ZFCP_STATUS_COMMON_ACCESS_BOXED);
zfcp_erp_port_reopen(zfcp_sdev->port,
- ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2",
- req);
+ ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_SHARING_VIOLATION:
- zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual);
+ if (qual->word[0])
+ dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
+ "LUN 0x%Lx on port 0x%Lx is already in "
+ "use by CSS%d, MIF Image ID %x\n",
+ zfcp_scsi_dev_lun(sdev),
+ (unsigned long long)zfcp_sdev->port->wwpn,
+ qual->fsf_queue_designator.cssid,
+ qual->fsf_queue_designator.hla);
+ zfcp_erp_set_lun_status(sdev,
+ ZFCP_STATUS_COMMON_ERP_FAILED |
+ ZFCP_STATUS_COMMON_ACCESS_DENIED);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED:
@@ -1788,7 +1824,6 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
case FSF_GOOD:
zfcp_sdev->lun_handle = header->lun_handle;
atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status);
- zfcp_cfdc_open_lun_eval(sdev, bottom);
break;
}
}
@@ -1810,7 +1845,7 @@ int zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
adapter->pool.erp_req);
if (IS_ERR(req)) {
@@ -1845,27 +1880,27 @@ out:
static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req)
{
struct scsi_device *sdev = req->data;
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+ struct zfcp_scsi_dev *zfcp_sdev;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
return;
+ zfcp_sdev = sdev_to_zfcp(sdev);
+
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
- zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1",
- req);
+ zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_HANDLE_NOT_VALID:
- zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2", req);
+ zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PORT_BOXED:
zfcp_erp_set_port_status(zfcp_sdev->port,
ZFCP_STATUS_COMMON_ACCESS_BOXED);
zfcp_erp_port_reopen(zfcp_sdev->port,
- ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3",
- req);
+ ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -1901,7 +1936,7 @@ int zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action)
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN,
- SBAL_FLAGS0_TYPE_READ,
+ SBAL_SFLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
if (IS_ERR(req)) {
@@ -1941,7 +1976,7 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
{
struct fsf_qual_latency_info *lat_in;
struct latency_cont *lat = NULL;
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device);
+ struct zfcp_scsi_dev *zfcp_sdev;
struct zfcp_blk_drv_data blktrc;
int ticks = req->adapter->timer_ticks;
@@ -1956,6 +1991,7 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA &&
!(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
+ zfcp_sdev = sdev_to_zfcp(scsi->device);
blktrc.flags |= ZFCP_BLK_LAT_VALID;
blktrc.channel_lat = lat_in->channel_lat * ticks;
blktrc.fabric_lat = lat_in->fabric_lat * ticks;
@@ -1993,31 +2029,28 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
{
struct scsi_cmnd *scmnd = req->data;
struct scsi_device *sdev = scmnd->device;
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+ struct zfcp_scsi_dev *zfcp_sdev;
struct fsf_qtcb_header *header = &req->qtcb->header;
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR))
return;
+ zfcp_sdev = sdev_to_zfcp(sdev);
+
switch (header->fsf_status) {
case FSF_HANDLE_MISMATCH:
case FSF_PORT_HANDLE_NOT_VALID:
- zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1",
- req);
+ zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_FCPLUN_NOT_VALID:
case FSF_LUN_HANDLE_NOT_VALID:
- zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2", req);
+ zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
zfcp_fsf_class_not_supp(req);
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- break;
case FSF_DIRECTION_INDICATOR_NOT_VALID:
dev_err(&req->adapter->ccw_device->dev,
"Incorrect direction %d, LUN 0x%016Lx on port "
@@ -2026,7 +2059,7 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
(unsigned long long)zfcp_scsi_dev_lun(sdev),
(unsigned long long)zfcp_sdev->port->wwpn);
zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0,
- "fssfch3", req);
+ "fssfch3");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_CMND_LENGTH_NOT_VALID:
@@ -2037,21 +2070,20 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
(unsigned long long)zfcp_scsi_dev_lun(sdev),
(unsigned long long)zfcp_sdev->port->wwpn);
zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0,
- "fssfch4", req);
+ "fssfch4");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PORT_BOXED:
zfcp_erp_set_port_status(zfcp_sdev->port,
ZFCP_STATUS_COMMON_ACCESS_BOXED);
zfcp_erp_port_reopen(zfcp_sdev->port,
- ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5",
- req);
+ ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_BOXED:
zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED);
zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
- "fssfch6", req);
+ "fssfch6");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -2069,8 +2101,6 @@ static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req)
struct fcp_resp_with_ext *fcp_rsp;
unsigned long flags;
- zfcp_fsf_fcp_handler_common(req);
-
read_lock_irqsave(&req->adapter->abort_lock, flags);
scpnt = req->data;
@@ -2079,6 +2109,8 @@ static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req)
return;
}
+ zfcp_fsf_fcp_handler_common(req);
+
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED);
goto skip_fsfstatus;
@@ -2104,7 +2136,7 @@ static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req)
skip_fsfstatus:
zfcp_fsf_req_trace(req, scpnt);
- zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req);
+ zfcp_dbf_scsi_result(scpnt, req);
scpnt->host_scribble = NULL;
(scpnt->scsi_done) (scpnt);
@@ -2163,26 +2195,27 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd)
{
struct zfcp_fsf_req *req;
struct fcp_cmnd *fcp_cmnd;
- unsigned int sbtype = SBAL_FLAGS0_TYPE_READ;
- int real_bytes, retval = -EIO, dix_bytes = 0;
+ u8 sbtype = SBAL_SFLAGS0_TYPE_READ;
+ int retval = -EIO;
struct scsi_device *sdev = scsi_cmnd->device;
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
struct zfcp_qdio *qdio = adapter->qdio;
struct fsf_qtcb_bottom_io *io;
+ unsigned long flags;
if (unlikely(!(atomic_read(&zfcp_sdev->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return -EBUSY;
- spin_lock(&qdio->req_q_lock);
+ spin_lock_irqsave(&qdio->req_q_lock, flags);
if (atomic_read(&qdio->req_q_free) <= 0) {
atomic_inc(&qdio->req_q_full);
goto out;
}
if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE)
- sbtype = SBAL_FLAGS0_TYPE_WRITE;
+ sbtype = SBAL_SFLAGS0_TYPE_WRITE;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND,
sbtype, adapter->pool.scsi_req);
@@ -2208,26 +2241,31 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd)
io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF;
}
- zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction);
+ if (zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction))
+ goto failed_scsi_cmnd;
fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
- zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd);
+ zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0);
if (scsi_prot_sg_count(scsi_cmnd)) {
zfcp_qdio_set_data_div(qdio, &req->qdio_req,
scsi_prot_sg_count(scsi_cmnd));
- dix_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
+ retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
+ scsi_prot_sglist(scsi_cmnd));
+ if (retval)
+ goto failed_scsi_cmnd;
+ io->prot_data_length = zfcp_qdio_real_bytes(
scsi_prot_sglist(scsi_cmnd));
- io->prot_data_length = dix_bytes;
}
- real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
- scsi_sglist(scsi_cmnd));
-
- if (unlikely(real_bytes < 0) || unlikely(dix_bytes < 0))
+ retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
+ scsi_sglist(scsi_cmnd));
+ if (unlikely(retval))
goto failed_scsi_cmnd;
zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req);
+ if (zfcp_adapter_multi_buffer_active(adapter))
+ zfcp_qdio_set_scount(qdio, &req->qdio_req);
retval = zfcp_fsf_req_send(req);
if (unlikely(retval))
@@ -2239,7 +2277,7 @@ failed_scsi_cmnd:
zfcp_fsf_req_free(req);
scsi_cmnd->host_scribble = NULL;
out:
- spin_unlock(&qdio->req_q_lock);
+ spin_unlock_irqrestore(&qdio->req_q_lock, flags);
return retval;
}
@@ -2281,7 +2319,7 @@ struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd,
goto out;
req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND,
- SBAL_FLAGS0_TYPE_WRITE,
+ SBAL_SFLAGS0_TYPE_WRITE,
qdio->adapter->pool.scsi_req);
if (IS_ERR(req)) {
@@ -2289,7 +2327,6 @@ struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd,
goto out;
}
- req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT;
req->data = scmnd;
req->handler = zfcp_fsf_fcp_task_mgmt_handler;
req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
@@ -2301,7 +2338,7 @@ struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd,
zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
- zfcp_fc_fcp_tm(fcp_cmnd, scmnd->device, tm_flags);
+ zfcp_fc_scsi_to_fcp(fcp_cmnd, scmnd, tm_flags);
zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
if (!zfcp_fsf_req_send(req))
@@ -2314,74 +2351,6 @@ out:
return req;
}
-static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req)
-{
-}
-
-/**
- * zfcp_fsf_control_file - control file upload/download
- * @adapter: pointer to struct zfcp_adapter
- * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc
- * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise
- */
-struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
- struct zfcp_fsf_cfdc *fsf_cfdc)
-{
- struct zfcp_qdio *qdio = adapter->qdio;
- struct zfcp_fsf_req *req = NULL;
- struct fsf_qtcb_bottom_support *bottom;
- int direction, retval = -EIO, bytes;
-
- if (!(adapter->adapter_features & FSF_FEATURE_CFDC))
- return ERR_PTR(-EOPNOTSUPP);
-
- switch (fsf_cfdc->command) {
- case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
- direction = SBAL_FLAGS0_TYPE_WRITE;
- break;
- case FSF_QTCB_UPLOAD_CONTROL_FILE:
- direction = SBAL_FLAGS0_TYPE_READ;
- break;
- default:
- return ERR_PTR(-EINVAL);
- }
-
- spin_lock_irq(&qdio->req_q_lock);
- if (zfcp_qdio_sbal_get(qdio))
- goto out;
-
- req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL);
- if (IS_ERR(req)) {
- retval = -EPERM;
- goto out;
- }
-
- req->handler = zfcp_fsf_control_file_handler;
-
- bottom = &req->qtcb->bottom.support;
- bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE;
- bottom->option = fsf_cfdc->option;
-
- bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg);
-
- if (bytes != ZFCP_CFDC_MAX_SIZE) {
- zfcp_fsf_req_free(req);
- goto out;
- }
- zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req);
-
- zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
- retval = zfcp_fsf_req_send(req);
-out:
- spin_unlock_irq(&qdio->req_q_lock);
-
- if (!retval) {
- wait_for_completion(&req->completion);
- return req;
- }
- return ERR_PTR(retval);
-}
-
/**
* zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO
* @adapter: pointer to struct zfcp_adapter
@@ -2415,7 +2384,7 @@ void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx)
fsf_req->qdio_req.sbal_response = sbal_idx;
zfcp_fsf_req_complete(fsf_req);
- if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY))
+ if (likely(sbale->eflags & SBAL_EFLAGS_LAST_ENTRY))
break;
}
}
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h
index db8c85382dc..57ae3ae1046 100644
--- a/drivers/s390/scsi/zfcp_fsf.h
+++ b/drivers/s390/scsi/zfcp_fsf.h
@@ -3,7 +3,7 @@
*
* Interface to the FSF support functions.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2010
*/
#ifndef FSF_H
@@ -36,13 +36,6 @@
#define FSF_CONFIG_COMMAND 0x00000003
#define FSF_PORT_COMMAND 0x00000004
-/* FSF control file upload/download operations' subtype and options */
-#define FSF_CFDC_OPERATION_SUBTYPE 0x00020001
-#define FSF_CFDC_OPTION_NORMAL_MODE 0x00000000
-#define FSF_CFDC_OPTION_FORCE 0x00000001
-#define FSF_CFDC_OPTION_FULL_ACCESS 0x00000002
-#define FSF_CFDC_OPTION_RESTRICTED_ACCESS 0x00000004
-
/* FSF protocol states */
#define FSF_PROT_GOOD 0x00000001
#define FSF_PROT_QTCB_VERSION_ERROR 0x00000010
@@ -64,7 +57,6 @@
#define FSF_HANDLE_MISMATCH 0x00000005
#define FSF_SERVICE_CLASS_NOT_SUPPORTED 0x00000006
#define FSF_FCPLUN_NOT_VALID 0x00000009
-#define FSF_ACCESS_DENIED 0x00000010
#define FSF_LUN_SHARING_VIOLATION 0x00000012
#define FSF_FCP_COMMAND_DOES_NOT_EXIST 0x00000022
#define FSF_DIRECTION_INDICATOR_NOT_VALID 0x00000030
@@ -130,7 +122,6 @@
#define FSF_STATUS_READ_LINK_DOWN 0x00000005
#define FSF_STATUS_READ_LINK_UP 0x00000006
#define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009
-#define FSF_STATUS_READ_CFDC_UPDATED 0x0000000A
#define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C
/* status subtypes for link down */
@@ -140,7 +131,6 @@
/* status subtypes for unsolicited status notification lost */
#define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001
-#define FSF_STATUS_READ_SUB_ACT_UPDATED 0x00000020
/* topologie that is detected by the adapter */
#define FSF_TOPO_P2P 0x00000001
@@ -166,8 +156,6 @@
#define FSF_QTCB_LOG_SIZE 1024
/* channel features */
-#define FSF_FEATURE_CFDC 0x00000002
-#define FSF_FEATURE_LUN_SHARING 0x00000004
#define FSF_FEATURE_NOTIFICATION_LOST 0x00000008
#define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010
#define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020
@@ -182,20 +170,6 @@
/* option */
#define FSF_OPEN_LUN_SUPPRESS_BOXING 0x00000001
-/* open LUN access flags*/
-#define FSF_UNIT_ACCESS_EXCLUSIVE 0x02000000
-#define FSF_UNIT_ACCESS_OUTBOUND_TRANSFER 0x10000000
-
-/* FSF interface for CFDC */
-#define ZFCP_CFDC_MAX_SIZE 127 * 1024
-#define ZFCP_CFDC_PAGES PFN_UP(ZFCP_CFDC_MAX_SIZE)
-
-struct zfcp_fsf_cfdc {
- struct scatterlist sg[ZFCP_CFDC_PAGES];
- u32 command;
- u32 option;
-};
-
struct fsf_queue_designator {
u8 cssid;
u8 chpid;
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index a0554beb417..06025cdaa4a 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -3,18 +3,23 @@
*
* Setup and helper functions to access QDIO.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2010
*/
#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/slab.h>
+#include <linux/module.h>
#include "zfcp_ext.h"
#include "zfcp_qdio.h"
#define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer))
+static bool enable_multibuffer = 1;
+module_param_named(datarouter, enable_multibuffer, bool, 0400);
+MODULE_PARM_DESC(datarouter, "Enable hardware data router support (default on)");
+
static int zfcp_qdio_buffers_enqueue(struct qdio_buffer **sbal)
{
int pos;
@@ -37,11 +42,14 @@ static void zfcp_qdio_handler_error(struct zfcp_qdio *qdio, char *id,
dev_warn(&adapter->ccw_device->dev, "A QDIO problem occurred\n");
- if (qdio_err & QDIO_ERROR_SLSB_STATE)
+ if (qdio_err & QDIO_ERROR_SLSB_STATE) {
zfcp_qdio_siosl(adapter);
+ zfcp_erp_adapter_shutdown(adapter, 0, id);
+ return;
+ }
zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
- ZFCP_STATUS_COMMON_ERP_FAILED, id, NULL);
+ ZFCP_STATUS_COMMON_ERP_FAILED, id);
}
static void zfcp_qdio_zero_sbals(struct qdio_buffer *sbal[], int first, int cnt)
@@ -60,7 +68,7 @@ static inline void zfcp_qdio_account(struct zfcp_qdio *qdio)
unsigned long long now, span;
int used;
- now = get_clock_monotonic();
+ now = get_tod_clock_monotonic();
span = (now - qdio->req_q_time) >> 12;
used = QDIO_MAX_BUFFERS_PER_Q - atomic_read(&qdio->req_q_free);
qdio->req_q_util += used * span;
@@ -74,7 +82,6 @@ static void zfcp_qdio_int_req(struct ccw_device *cdev, unsigned int qdio_err,
struct zfcp_qdio *qdio = (struct zfcp_qdio *) parm;
if (unlikely(qdio_err)) {
- zfcp_dbf_hba_qdio(qdio->adapter->dbf, qdio_err, idx, count);
zfcp_qdio_handler_error(qdio, "qdireq1", qdio_err);
return;
}
@@ -94,10 +101,31 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
unsigned long parm)
{
struct zfcp_qdio *qdio = (struct zfcp_qdio *) parm;
- int sbal_idx, sbal_no;
+ struct zfcp_adapter *adapter = qdio->adapter;
+ int sbal_no, sbal_idx;
if (unlikely(qdio_err)) {
- zfcp_dbf_hba_qdio(qdio->adapter->dbf, qdio_err, idx, count);
+ if (zfcp_adapter_multi_buffer_active(adapter)) {
+ void *pl[ZFCP_QDIO_MAX_SBALS_PER_REQ + 1];
+ struct qdio_buffer_element *sbale;
+ u64 req_id;
+ u8 scount;
+
+ memset(pl, 0,
+ ZFCP_QDIO_MAX_SBALS_PER_REQ * sizeof(void *));
+ sbale = qdio->res_q[idx]->element;
+ req_id = (u64) sbale->addr;
+ scount = min(sbale->scount + 1,
+ ZFCP_QDIO_MAX_SBALS_PER_REQ + 1);
+ /* incl. signaling SBAL */
+
+ for (sbal_no = 0; sbal_no < scount; sbal_no++) {
+ sbal_idx = (idx + sbal_no) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ pl[sbal_no] = qdio->res_q[sbal_idx];
+ }
+ zfcp_dbf_hba_def_err(adapter, req_id, scount, pl);
+ }
zfcp_qdio_handler_error(qdio, "qdires1", qdio_err);
return;
}
@@ -116,7 +144,7 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
* put SBALs back to response queue
*/
if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, idx, count))
- zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdires2", NULL);
+ zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdires2");
}
static struct qdio_buffer_element *
@@ -126,7 +154,7 @@ zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
/* set last entry flag in current SBALE of current SBAL */
sbale = zfcp_qdio_sbale_curr(qdio, q_req);
- sbale->flags |= SBAL_FLAGS_LAST_ENTRY;
+ sbale->eflags |= SBAL_EFLAGS_LAST_ENTRY;
/* don't exceed last allowed SBAL */
if (q_req->sbal_last == q_req->sbal_limit)
@@ -134,7 +162,7 @@ zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
/* set chaining flag in first SBALE of current SBAL */
sbale = zfcp_qdio_sbale_req(qdio, q_req);
- sbale->flags |= SBAL_FLAGS0_MORE_SBALS;
+ sbale->sflags |= SBAL_SFLAGS0_MORE_SBALS;
/* calculate index of next SBAL */
q_req->sbal_last++;
@@ -149,7 +177,7 @@ zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
/* set storage-block type for new SBAL */
sbale = zfcp_qdio_sbale_curr(qdio, q_req);
- sbale->flags |= q_req->sbtype;
+ sbale->sflags |= q_req->sbtype;
return sbale;
}
@@ -157,7 +185,7 @@ zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
static struct qdio_buffer_element *
zfcp_qdio_sbale_next(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
{
- if (q_req->sbale_curr == ZFCP_QDIO_LAST_SBALE_PER_SBAL)
+ if (q_req->sbale_curr == qdio->max_sbale_per_sbal - 1)
return zfcp_qdio_sbal_chain(qdio, q_req);
q_req->sbale_curr++;
return zfcp_qdio_sbale_curr(qdio, q_req);
@@ -169,17 +197,16 @@ zfcp_qdio_sbale_next(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
* @q_req: pointer to struct zfcp_qdio_req
* @sg: scatter-gather list
* @max_sbals: upper bound for number of SBALs to be used
- * Returns: number of bytes, or error (negativ)
+ * Returns: zero or -EINVAL on error
*/
int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req,
struct scatterlist *sg)
{
struct qdio_buffer_element *sbale;
- int bytes = 0;
/* set storage-block type for this request */
sbale = zfcp_qdio_sbale_req(qdio, q_req);
- sbale->flags |= q_req->sbtype;
+ sbale->sflags |= q_req->sbtype;
for (; sg; sg = sg_next(sg)) {
sbale = zfcp_qdio_sbale_next(qdio, q_req);
@@ -189,23 +216,17 @@ int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req,
q_req->sbal_number);
return -EINVAL;
}
-
sbale->addr = sg_virt(sg);
sbale->length = sg->length;
-
- bytes += sg->length;
}
-
- return bytes;
+ return 0;
}
static int zfcp_qdio_sbal_check(struct zfcp_qdio *qdio)
{
- spin_lock_irq(&qdio->req_q_lock);
if (atomic_read(&qdio->req_q_free) ||
!(atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP))
return 1;
- spin_unlock_irq(&qdio->req_q_lock);
return 0;
}
@@ -223,9 +244,8 @@ int zfcp_qdio_sbal_get(struct zfcp_qdio *qdio)
{
long ret;
- spin_unlock_irq(&qdio->req_q_lock);
- ret = wait_event_interruptible_timeout(qdio->req_q_wq,
- zfcp_qdio_sbal_check(qdio), 5 * HZ);
+ ret = wait_event_interruptible_lock_irq_timeout(qdio->req_q_wq,
+ zfcp_qdio_sbal_check(qdio), qdio->req_q_lock, 5 * HZ);
if (!(atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP))
return -EIO;
@@ -236,10 +256,9 @@ int zfcp_qdio_sbal_get(struct zfcp_qdio *qdio)
if (!ret) {
atomic_inc(&qdio->req_q_full);
/* assume hanging outbound queue, try queue recovery */
- zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1", NULL);
+ zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1");
}
- spin_lock_irq(&qdio->req_q_lock);
return -EIO;
}
@@ -285,6 +304,8 @@ static void zfcp_qdio_setup_init_data(struct qdio_initialize *id,
memcpy(id->adapter_name, dev_name(&id->cdev->dev), 8);
ASCEBC(id->adapter_name, 8);
id->qib_rflags = QIB_RFLAGS_ENABLE_DATA_DIV;
+ if (enable_multibuffer)
+ id->qdr_ac |= QDR_AC_MULTI_BUFFER_ENABLE;
id->no_input_qs = 1;
id->no_output_qs = 1;
id->input_handler = zfcp_qdio_int_resp;
@@ -292,6 +313,8 @@ static void zfcp_qdio_setup_init_data(struct qdio_initialize *id,
id->int_parm = (unsigned long) qdio;
id->input_sbal_addr_array = (void **) (qdio->res_q);
id->output_sbal_addr_array = (void **) (qdio->req_q);
+ id->scan_threshold =
+ QDIO_MAX_BUFFERS_PER_Q - ZFCP_QDIO_MAX_SBALS_PER_REQ * 2;
}
/**
@@ -309,6 +332,7 @@ static int zfcp_qdio_allocate(struct zfcp_qdio *qdio)
return -ENOMEM;
zfcp_qdio_setup_init_data(&init_data, qdio);
+ init_waitqueue_head(&qdio->req_q_wq);
return qdio_allocate(&init_data);
}
@@ -377,22 +401,40 @@ int zfcp_qdio_open(struct zfcp_qdio *qdio)
atomic_set_mask(ZFCP_STATUS_ADAPTER_DATA_DIV_ENABLED,
&qdio->adapter->status);
+ if (ssqd.qdioac2 & CHSC_AC2_MULTI_BUFFER_ENABLED) {
+ atomic_set_mask(ZFCP_STATUS_ADAPTER_MB_ACT, &adapter->status);
+ qdio->max_sbale_per_sbal = QDIO_MAX_ELEMENTS_PER_BUFFER;
+ } else {
+ atomic_clear_mask(ZFCP_STATUS_ADAPTER_MB_ACT, &adapter->status);
+ qdio->max_sbale_per_sbal = QDIO_MAX_ELEMENTS_PER_BUFFER - 1;
+ }
+
+ qdio->max_sbale_per_req =
+ ZFCP_QDIO_MAX_SBALS_PER_REQ * qdio->max_sbale_per_sbal
+ - 2;
if (qdio_activate(cdev))
goto failed_qdio;
for (cc = 0; cc < QDIO_MAX_BUFFERS_PER_Q; cc++) {
sbale = &(qdio->res_q[cc]->element[0]);
sbale->length = 0;
- sbale->flags = SBAL_FLAGS_LAST_ENTRY;
+ sbale->eflags = SBAL_EFLAGS_LAST_ENTRY;
+ sbale->sflags = 0;
sbale->addr = NULL;
}
if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, 0, QDIO_MAX_BUFFERS_PER_Q))
goto failed_qdio;
- /* set index of first avalable SBALS / number of available SBALS */
+ /* set index of first available SBALS / number of available SBALS */
qdio->req_q_idx = 0;
atomic_set(&qdio->req_q_free, QDIO_MAX_BUFFERS_PER_Q);
+ atomic_set_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &qdio->adapter->status);
+
+ if (adapter->scsi_host) {
+ adapter->scsi_host->sg_tablesize = qdio->max_sbale_per_req;
+ adapter->scsi_host->max_sectors = qdio->max_sbale_per_req * 8;
+ }
return 0;
diff --git a/drivers/s390/scsi/zfcp_qdio.h b/drivers/s390/scsi/zfcp_qdio.h
index 2297d8d3e94..497cd379b0d 100644
--- a/drivers/s390/scsi/zfcp_qdio.h
+++ b/drivers/s390/scsi/zfcp_qdio.h
@@ -3,7 +3,7 @@
*
* Header file for zfcp qdio interface
*
- * Copyright IBM Corporation 2010
+ * Copyright IBM Corp. 2010
*/
#ifndef ZFCP_QDIO_H
@@ -13,20 +13,9 @@
#define ZFCP_QDIO_SBALE_LEN PAGE_SIZE
-/* DMQ bug workaround: don't use last SBALE */
-#define ZFCP_QDIO_MAX_SBALES_PER_SBAL (QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
-
-/* index of last SBALE (with respect to DMQ bug workaround) */
-#define ZFCP_QDIO_LAST_SBALE_PER_SBAL (ZFCP_QDIO_MAX_SBALES_PER_SBAL - 1)
-
/* Max SBALS for chaining */
#define ZFCP_QDIO_MAX_SBALS_PER_REQ 36
-/* max. number of (data buffer) SBALEs in largest SBAL chain
- * request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */
-#define ZFCP_QDIO_MAX_SBALES_PER_REQ \
- (ZFCP_QDIO_MAX_SBALS_PER_REQ * ZFCP_QDIO_MAX_SBALES_PER_SBAL - 2)
-
/**
* struct zfcp_qdio - basic qdio data structure
* @res_q: response queue
@@ -53,6 +42,8 @@ struct zfcp_qdio {
atomic_t req_q_full;
wait_queue_head_t req_q_wq;
struct zfcp_adapter *adapter;
+ u16 max_sbale_per_sbal;
+ u16 max_sbale_per_req;
};
/**
@@ -67,7 +58,7 @@ struct zfcp_qdio {
* @qdio_outb_usage: usage of outbound queue
*/
struct zfcp_qdio_req {
- u32 sbtype;
+ u8 sbtype;
u8 sbal_number;
u8 sbal_first;
u8 sbal_last;
@@ -116,7 +107,7 @@ zfcp_qdio_sbale_curr(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
*/
static inline
void zfcp_qdio_req_init(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req,
- unsigned long req_id, u32 sbtype, void *data, u32 len)
+ unsigned long req_id, u8 sbtype, void *data, u32 len)
{
struct qdio_buffer_element *sbale;
int count = min(atomic_read(&qdio->req_q_free),
@@ -131,7 +122,8 @@ void zfcp_qdio_req_init(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req,
sbale = zfcp_qdio_sbale_req(qdio, q_req);
sbale->addr = (void *) req_id;
- sbale->flags = SBAL_FLAGS0_COMMAND | sbtype;
+ sbale->eflags = 0;
+ sbale->sflags = SBAL_SFLAGS0_COMMAND | sbtype;
if (unlikely(!data))
return;
@@ -154,7 +146,7 @@ void zfcp_qdio_fill_next(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req,
{
struct qdio_buffer_element *sbale;
- BUG_ON(q_req->sbale_curr == ZFCP_QDIO_LAST_SBALE_PER_SBAL);
+ BUG_ON(q_req->sbale_curr == qdio->max_sbale_per_sbal - 1);
q_req->sbale_curr++;
sbale = zfcp_qdio_sbale_curr(qdio, q_req);
sbale->addr = data;
@@ -173,7 +165,7 @@ void zfcp_qdio_set_sbale_last(struct zfcp_qdio *qdio,
struct qdio_buffer_element *sbale;
sbale = zfcp_qdio_sbale_curr(qdio, q_req);
- sbale->flags |= SBAL_FLAGS_LAST_ENTRY;
+ sbale->eflags |= SBAL_EFLAGS_LAST_ENTRY;
}
/**
@@ -194,9 +186,10 @@ int zfcp_qdio_sg_one_sbale(struct scatterlist *sg)
* @q_req: The current zfcp_qdio_req
*/
static inline
-void zfcp_qdio_skip_to_last_sbale(struct zfcp_qdio_req *q_req)
+void zfcp_qdio_skip_to_last_sbale(struct zfcp_qdio *qdio,
+ struct zfcp_qdio_req *q_req)
{
- q_req->sbale_curr = ZFCP_QDIO_LAST_SBALE_PER_SBAL;
+ q_req->sbale_curr = qdio->max_sbale_per_sbal - 1;
}
/**
@@ -227,8 +220,52 @@ void zfcp_qdio_set_data_div(struct zfcp_qdio *qdio,
{
struct qdio_buffer_element *sbale;
- sbale = &qdio->req_q[q_req->sbal_first]->element[0];
+ sbale = qdio->req_q[q_req->sbal_first]->element;
sbale->length = count;
}
+/**
+ * zfcp_qdio_sbale_count - count sbale used
+ * @sg: pointer to struct scatterlist
+ */
+static inline
+unsigned int zfcp_qdio_sbale_count(struct scatterlist *sg)
+{
+ unsigned int count = 0;
+
+ for (; sg; sg = sg_next(sg))
+ count++;
+
+ return count;
+}
+
+/**
+ * zfcp_qdio_real_bytes - count bytes used
+ * @sg: pointer to struct scatterlist
+ */
+static inline
+unsigned int zfcp_qdio_real_bytes(struct scatterlist *sg)
+{
+ unsigned int real_bytes = 0;
+
+ for (; sg; sg = sg_next(sg))
+ real_bytes += sg->length;
+
+ return real_bytes;
+}
+
+/**
+ * zfcp_qdio_set_scount - set SBAL count value
+ * @qdio: pointer to struct zfcp_qdio
+ * @q_req: The current zfcp_qdio_req
+ */
+static inline
+void zfcp_qdio_set_scount(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
+{
+ struct qdio_buffer_element *sbale;
+
+ sbale = qdio->req_q[q_req->sbal_first]->element;
+ sbale->scount = q_req->sbal_number - 1;
+}
+
#endif /* ZFCP_QDIO_H */
diff --git a/drivers/s390/scsi/zfcp_reqlist.h b/drivers/s390/scsi/zfcp_reqlist.h
index a72d1b730ab..7c2c6194dfc 100644
--- a/drivers/s390/scsi/zfcp_reqlist.h
+++ b/drivers/s390/scsi/zfcp_reqlist.h
@@ -4,7 +4,7 @@
* Data structure and helper functions for tracking pending FSF
* requests.
*
- * Copyright IBM Corporation 2009
+ * Copyright IBM Corp. 2009
*/
#ifndef ZFCP_REQLIST_H
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 50286d8707f..7b353647cb9 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -3,17 +3,18 @@
*
* Interface to Linux SCSI midlayer.
*
- * Copyright IBM Corporation 2002, 2010
+ * Copyright IBM Corp. 2002, 2013
*/
#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/module.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <scsi/fc/fc_fcp.h>
#include <scsi/scsi_eh.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include "zfcp_ext.h"
#include "zfcp_dbf.h"
#include "zfcp_fc.h"
@@ -24,11 +25,12 @@ module_param_named(queue_depth, default_depth, uint, 0600);
MODULE_PARM_DESC(queue_depth, "Default queue depth for new SCSI devices");
static bool enable_dif;
-
-#ifdef CONFIG_ZFCP_DIF
-module_param_named(dif, enable_dif, bool, 0600);
+module_param_named(dif, enable_dif, bool, 0400);
MODULE_PARM_DESC(dif, "Enable DIF/DIX data integrity support");
-#endif
+
+static bool allow_lun_scan = 1;
+module_param(allow_lun_scan, bool, 0600);
+MODULE_PARM_DESC(allow_lun_scan, "For NPIV, scan and attach all storage LUNs");
static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth,
int reason)
@@ -53,6 +55,10 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdev)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+ /* if previous slave_alloc returned early, there is nothing to do */
+ if (!zfcp_sdev->port)
+ return;
+
zfcp_erp_lun_shutdown_wait(sdev, "scssd_1");
put_device(&zfcp_sdev->port->dev);
}
@@ -68,31 +74,26 @@ static int zfcp_scsi_slave_configure(struct scsi_device *sdp)
static void zfcp_scsi_command_fail(struct scsi_cmnd *scpnt, int result)
{
- struct zfcp_adapter *adapter =
- (struct zfcp_adapter *) scpnt->device->host->hostdata[0];
-
set_host_byte(scpnt, result);
- zfcp_dbf_scsi_fail_send(adapter->dbf, scpnt);
+ zfcp_dbf_scsi_fail_send(scpnt);
scpnt->scsi_done(scpnt);
}
-static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
- void (*done) (struct scsi_cmnd *))
+static
+int zfcp_scsi_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scpnt)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device);
- struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
struct fc_rport *rport = starget_to_rport(scsi_target(scpnt->device));
int status, scsi_result, ret;
/* reset the status for this request */
scpnt->result = 0;
scpnt->host_scribble = NULL;
- scpnt->scsi_done = done;
scsi_result = fc_remote_port_chkready(rport);
if (unlikely(scsi_result)) {
scpnt->result = scsi_result;
- zfcp_dbf_scsi_fail_send(adapter->dbf, scpnt);
+ zfcp_dbf_scsi_fail_send(scpnt);
scpnt->scsi_done(scpnt);
return 0;
}
@@ -135,6 +136,7 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev)
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
struct zfcp_port *port;
struct zfcp_unit *unit;
+ int npiv = adapter->connection_features & FSF_FEATURE_NPIV_MODE;
port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
if (!port)
@@ -144,7 +146,7 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev)
if (unit)
put_device(&unit->dev);
- if (!unit && !(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) {
+ if (!unit && !(allow_lun_scan && npiv)) {
put_device(&port->dev);
return -ENXIO;
}
@@ -159,7 +161,7 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev)
spin_lock_init(&zfcp_sdev->latencies.lock);
zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
- zfcp_erp_lun_reopen(sdev, 0, "scsla_1", NULL);
+ zfcp_erp_lun_reopen(sdev, 0, "scsla_1");
zfcp_erp_wait(port->adapter);
return 0;
@@ -183,8 +185,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
old_req = zfcp_reqlist_find(adapter->req_list, old_reqid);
if (!old_req) {
write_unlock_irqrestore(&adapter->abort_lock, flags);
- zfcp_dbf_scsi_abort("lte1", adapter->dbf, scpnt, NULL,
- old_reqid);
+ zfcp_dbf_scsi_abort("abrt_or", scpnt, NULL);
return FAILED; /* completion could be in progress */
}
old_req->data = NULL;
@@ -199,29 +200,32 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
zfcp_erp_wait(adapter);
ret = fc_block_scsi_eh(scpnt);
- if (ret)
+ if (ret) {
+ zfcp_dbf_scsi_abort("abrt_bl", scpnt, NULL);
return ret;
+ }
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
- zfcp_dbf_scsi_abort("nres", adapter->dbf, scpnt, NULL,
- old_reqid);
+ zfcp_dbf_scsi_abort("abrt_ru", scpnt, NULL);
return SUCCESS;
}
}
- if (!abrt_req)
+ if (!abrt_req) {
+ zfcp_dbf_scsi_abort("abrt_ar", scpnt, NULL);
return FAILED;
+ }
wait_for_completion(&abrt_req->completion);
if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED)
- dbf_tag = "okay";
+ dbf_tag = "abrt_ok";
else if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED)
- dbf_tag = "lte2";
+ dbf_tag = "abrt_nn";
else {
- dbf_tag = "fail";
+ dbf_tag = "abrt_fa";
retval = FAILED;
}
- zfcp_dbf_scsi_abort(dbf_tag, adapter->dbf, scpnt, abrt_req, old_reqid);
+ zfcp_dbf_scsi_abort(dbf_tag, scpnt, abrt_req);
zfcp_fsf_req_free(abrt_req);
return retval;
}
@@ -281,7 +285,7 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
int ret;
- zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt);
+ zfcp_erp_adapter_reopen(adapter, 0, "schrh_1");
zfcp_erp_wait(adapter);
ret = fc_block_scsi_eh(scpnt);
if (ret)
@@ -290,7 +294,41 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
return SUCCESS;
}
-int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
+struct scsi_transport_template *zfcp_scsi_transport_template;
+
+static struct scsi_host_template zfcp_scsi_host_template = {
+ .module = THIS_MODULE,
+ .name = "zfcp",
+ .queuecommand = zfcp_scsi_queuecommand,
+ .eh_abort_handler = zfcp_scsi_eh_abort_handler,
+ .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
+ .eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
+ .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
+ .slave_alloc = zfcp_scsi_slave_alloc,
+ .slave_configure = zfcp_scsi_slave_configure,
+ .slave_destroy = zfcp_scsi_slave_destroy,
+ .change_queue_depth = zfcp_scsi_change_queue_depth,
+ .proc_name = "zfcp",
+ .can_queue = 4096,
+ .this_id = -1,
+ .sg_tablesize = (((QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
+ * ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2),
+ /* GCD, adjusted later */
+ .max_sectors = (((QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
+ * ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2) * 8,
+ /* GCD, adjusted later */
+ .dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
+ .cmd_per_lun = 1,
+ .use_clustering = 1,
+ .shost_attrs = zfcp_sysfs_shost_attrs,
+ .sdev_attrs = zfcp_sysfs_sdev_attrs,
+};
+
+/**
+ * zfcp_scsi_adapter_register - Register SCSI and FC host with SCSI midlayer
+ * @adapter: The zfcp adapter to register with the SCSI midlayer
+ */
+int zfcp_scsi_adapter_register(struct zfcp_adapter *adapter)
{
struct ccw_dev_id dev_id;
@@ -299,7 +337,7 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
ccw_device_get_id(adapter->ccw_device, &dev_id);
/* register adapter as SCSI host with mid layer of SCSI stack */
- adapter->scsi_host = scsi_host_alloc(&zfcp_data.scsi_host_template,
+ adapter->scsi_host = scsi_host_alloc(&zfcp_scsi_host_template,
sizeof (struct zfcp_adapter *));
if (!adapter->scsi_host) {
dev_err(&adapter->ccw_device->dev,
@@ -314,7 +352,7 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
adapter->scsi_host->max_channel = 0;
adapter->scsi_host->unique_id = dev_id.devno;
adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */
- adapter->scsi_host->transportt = zfcp_data.scsi_transport_template;
+ adapter->scsi_host->transportt = zfcp_scsi_transport_template;
adapter->scsi_host->hostdata[0] = (unsigned long) adapter;
@@ -326,7 +364,11 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
return 0;
}
-void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
+/**
+ * zfcp_scsi_adapter_unregister - Unregister SCSI and FC host from SCSI midlayer
+ * @adapter: The zfcp adapter to unregister.
+ */
+void zfcp_scsi_adapter_unregister(struct zfcp_adapter *adapter)
{
struct Scsi_Host *shost;
struct zfcp_port *port;
@@ -344,8 +386,6 @@ void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
scsi_remove_host(shost);
scsi_host_put(shost);
adapter->scsi_host = NULL;
-
- return;
}
static struct fc_host_statistics*
@@ -519,7 +559,7 @@ static void zfcp_scsi_terminate_rport_io(struct fc_rport *rport)
port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
if (port) {
- zfcp_erp_port_forced_reopen(port, 0, "sctrpi1", NULL);
+ zfcp_erp_port_forced_reopen(port, 0, "sctrpi1");
put_device(&port->dev);
}
}
@@ -634,9 +674,9 @@ void zfcp_scsi_set_prot(struct zfcp_adapter *adapter)
adapter->adapter_features & FSF_FEATURE_DIX_PROT_TCPIP) {
mask |= SHOST_DIX_TYPE1_PROTECTION;
scsi_host_set_guard(shost, SHOST_DIX_GUARD_IP);
- shost->sg_prot_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ / 2;
- shost->sg_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ / 2;
- shost->max_sectors = ZFCP_QDIO_MAX_SBALES_PER_REQ * 8 / 2;
+ shost->sg_prot_tablesize = adapter->qdio->max_sbale_per_req / 2;
+ shost->sg_tablesize = adapter->qdio->max_sbale_per_req / 2;
+ shost->max_sectors = shost->sg_tablesize * 8;
}
scsi_host_set_prot(shost, mask);
@@ -686,33 +726,8 @@ 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),
};
-
-struct zfcp_data zfcp_data = {
- .scsi_host_template = {
- .name = "zfcp",
- .module = THIS_MODULE,
- .proc_name = "zfcp",
- .change_queue_depth = zfcp_scsi_change_queue_depth,
- .slave_alloc = zfcp_scsi_slave_alloc,
- .slave_configure = zfcp_scsi_slave_configure,
- .slave_destroy = zfcp_scsi_slave_destroy,
- .queuecommand = zfcp_scsi_queuecommand,
- .eh_abort_handler = zfcp_scsi_eh_abort_handler,
- .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
- .eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
- .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
- .can_queue = 4096,
- .this_id = -1,
- .sg_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ,
- .cmd_per_lun = 1,
- .use_clustering = 1,
- .sdev_attrs = zfcp_sysfs_sdev_attrs,
- .max_sectors = (ZFCP_QDIO_MAX_SBALES_PER_REQ * 8),
- .dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
- .shost_attrs = zfcp_sysfs_shost_attrs,
- },
-};
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 2f2c54f4718..672b57219e1 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -3,7 +3,7 @@
*
* sysfs attributes.
*
- * Copyright IBM Corporation 2008, 2010
+ * Copyright IBM Corp. 2008, 2010
*/
#define KMSG_COMPONENT "zfcp"
@@ -27,6 +27,16 @@ static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
zfcp_sysfs_##_feat##_##_name##_show, NULL);
+#define ZFCP_DEFINE_ATTR_CONST(_feat, _name, _format, _value) \
+static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
+ struct device_attribute *at,\
+ char *buf) \
+{ \
+ return sprintf(buf, _format, _value); \
+} \
+static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
+ zfcp_sysfs_##_feat##_##_name##_show, NULL);
+
#define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \
static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
struct device_attribute *at,\
@@ -75,12 +85,8 @@ ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n",
ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n",
(zfcp_unit_sdev_status(unit) &
ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
-ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_shared, "%d\n",
- (zfcp_unit_sdev_status(unit) &
- ZFCP_STATUS_LUN_SHARED) != 0);
-ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_readonly, "%d\n",
- (zfcp_unit_sdev_status(unit) &
- ZFCP_STATUS_LUN_READONLY) != 0);
+ZFCP_DEFINE_ATTR_CONST(unit, access_shared, "%d\n", 0);
+ZFCP_DEFINE_ATTR_CONST(unit, access_readonly, "%d\n", 0);
static ssize_t zfcp_sysfs_port_failed_show(struct device *dev,
struct device_attribute *attr,
@@ -101,12 +107,11 @@ static ssize_t zfcp_sysfs_port_failed_store(struct device *dev,
struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
unsigned long val;
- if (strict_strtoul(buf, 0, &val) || val != 0)
+ if (kstrtoul(buf, 0, &val) || val != 0)
return -EINVAL;
zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_RUNNING);
- zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2",
- NULL);
+ zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2");
zfcp_erp_wait(port->adapter);
return count;
@@ -141,14 +146,14 @@ static ssize_t zfcp_sysfs_unit_failed_store(struct device *dev,
unsigned long val;
struct scsi_device *sdev;
- if (strict_strtoul(buf, 0, &val) || val != 0)
+ if (kstrtoul(buf, 0, &val) || val != 0)
return -EINVAL;
sdev = zfcp_unit_sdev(unit);
if (sdev) {
zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
- "syufai2", NULL);
+ "syufai2");
zfcp_erp_wait(unit->port->adapter);
} else
zfcp_unit_scsi_scan(unit);
@@ -191,14 +196,14 @@ static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev,
if (!adapter)
return -ENODEV;
- if (strict_strtoul(buf, 0, &val) || val != 0) {
+ if (kstrtoul(buf, 0, &val) || val != 0) {
retval = -EINVAL;
goto out;
}
zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
- "syafai2", NULL);
+ "syafai2");
zfcp_erp_wait(adapter);
out:
zfcp_ccw_adapter_put(adapter);
@@ -228,6 +233,8 @@ static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,
zfcp_sysfs_port_rescan_store);
+DEFINE_MUTEX(zfcp_sysfs_port_units_mutex);
+
static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -241,7 +248,7 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
if (!adapter)
return -ENODEV;
- if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn))
+ if (kstrtoull(buf, 0, (unsigned long long *) &wwpn))
goto out;
port = zfcp_get_port_by_wwpn(adapter, wwpn);
@@ -250,14 +257,24 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
else
retval = 0;
+ mutex_lock(&zfcp_sysfs_port_units_mutex);
+ if (atomic_read(&port->units) > 0) {
+ retval = -EBUSY;
+ mutex_unlock(&zfcp_sysfs_port_units_mutex);
+ goto out;
+ }
+ /* port is about to be removed, so no more unit_add */
+ atomic_set(&port->units, -1);
+ mutex_unlock(&zfcp_sysfs_port_units_mutex);
+
write_lock_irq(&adapter->port_list_lock);
list_del(&port->list);
write_unlock_irq(&adapter->port_list_lock);
put_device(&port->dev);
- zfcp_erp_port_shutdown(port, 0, "syprs_1", NULL);
- zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
+ zfcp_erp_port_shutdown(port, 0, "syprs_1");
+ device_unregister(&port->dev);
out:
zfcp_ccw_adapter_put(adapter);
return retval ? retval : (ssize_t) count;
@@ -290,12 +307,14 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
{
struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
u64 fcp_lun;
+ int retval;
- if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
+ if (kstrtoull(buf, 0, (unsigned long long *) &fcp_lun))
return -EINVAL;
- if (zfcp_unit_add(port, fcp_lun))
- return -EINVAL;
+ retval = zfcp_unit_add(port, fcp_lun);
+ if (retval)
+ return retval;
return count;
}
@@ -308,7 +327,7 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
u64 fcp_lun;
- if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
+ if (kstrtoull(buf, 0, (unsigned long long *) &fcp_lun))
return -EINVAL;
if (zfcp_unit_remove(port, fcp_lun))
@@ -327,13 +346,13 @@ static struct attribute *zfcp_port_attrs[] = {
&dev_attr_port_access_denied.attr,
NULL
};
-
-/**
- * zfcp_sysfs_port_attrs - sysfs attributes for all other ports
- */
-struct attribute_group zfcp_sysfs_port_attrs = {
+static struct attribute_group zfcp_port_attr_group = {
.attrs = zfcp_port_attrs,
};
+const struct attribute_group *zfcp_port_attr_groups[] = {
+ &zfcp_port_attr_group,
+ NULL,
+};
static struct attribute *zfcp_unit_attrs[] = {
&dev_attr_unit_failed.attr,
@@ -344,10 +363,13 @@ static struct attribute *zfcp_unit_attrs[] = {
&dev_attr_unit_access_readonly.attr,
NULL
};
-
-struct attribute_group zfcp_sysfs_unit_attrs = {
+static struct attribute_group zfcp_unit_attr_group = {
.attrs = zfcp_unit_attrs,
};
+const struct attribute_group *zfcp_unit_attr_groups[] = {
+ &zfcp_unit_attr_group,
+ NULL,
+};
#define ZFCP_DEFINE_LATENCY_ATTR(_name) \
static ssize_t \
diff --git a/drivers/s390/scsi/zfcp_unit.c b/drivers/s390/scsi/zfcp_unit.c
index 20796ebc33c..39f5446f721 100644
--- a/drivers/s390/scsi/zfcp_unit.c
+++ b/drivers/s390/scsi/zfcp_unit.c
@@ -4,7 +4,7 @@
* Tracking of manually configured LUNs and helper functions to
* register the LUNs with the SCSI midlayer.
*
- * Copyright IBM Corporation 2010
+ * Copyright IBM Corp. 2010
*/
#include "zfcp_def.h"
@@ -104,7 +104,7 @@ static void zfcp_unit_release(struct device *dev)
{
struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
- put_device(&unit->port->dev);
+ atomic_dec(&unit->port->units);
kfree(unit);
}
@@ -119,40 +119,49 @@ static void zfcp_unit_release(struct device *dev)
int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun)
{
struct zfcp_unit *unit;
+ int retval = 0;
+
+ mutex_lock(&zfcp_sysfs_port_units_mutex);
+ if (atomic_read(&port->units) == -1) {
+ /* port is already gone */
+ retval = -ENODEV;
+ goto out;
+ }
unit = zfcp_unit_find(port, fcp_lun);
if (unit) {
put_device(&unit->dev);
- return -EEXIST;
+ retval = -EEXIST;
+ goto out;
}
unit = kzalloc(sizeof(struct zfcp_unit), GFP_KERNEL);
- if (!unit)
- return -ENOMEM;
+ if (!unit) {
+ retval = -ENOMEM;
+ goto out;
+ }
unit->port = port;
unit->fcp_lun = fcp_lun;
unit->dev.parent = &port->dev;
unit->dev.release = zfcp_unit_release;
+ unit->dev.groups = zfcp_unit_attr_groups;
INIT_WORK(&unit->scsi_work, zfcp_unit_scsi_scan_work);
if (dev_set_name(&unit->dev, "0x%016llx",
(unsigned long long) fcp_lun)) {
kfree(unit);
- return -ENOMEM;
+ retval = -ENOMEM;
+ goto out;
}
- get_device(&port->dev);
-
if (device_register(&unit->dev)) {
put_device(&unit->dev);
- return -ENOMEM;
+ retval = -ENOMEM;
+ goto out;
}
- if (sysfs_create_group(&unit->dev.kobj, &zfcp_sysfs_unit_attrs)) {
- device_unregister(&unit->dev);
- return -EINVAL;
- }
+ atomic_inc(&port->units); /* under zfcp_sysfs_port_units_mutex ! */
write_lock_irq(&port->unit_list_lock);
list_add_tail(&unit->list, &port->unit_list);
@@ -160,7 +169,9 @@ int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun)
zfcp_unit_scsi_scan(unit);
- return 0;
+out:
+ mutex_unlock(&zfcp_sysfs_port_units_mutex);
+ return retval;
}
/**
@@ -238,7 +249,7 @@ int zfcp_unit_remove(struct zfcp_port *port, u64 fcp_lun)
put_device(&unit->dev);
- zfcp_device_unregister(&unit->dev, &zfcp_sysfs_unit_attrs);
+ device_unregister(&unit->dev);
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 08:43:05 +0000