summaryrefslogtreecommitdiff
path: root/drivers/s390/scsi
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/scsi')
-rw-r--r--drivers/s390/scsi/zfcp_aux.c4
-rw-r--r--drivers/s390/scsi/zfcp_erp.c29
-rw-r--r--drivers/s390/scsi/zfcp_ext.h2
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c12
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c12
-rw-r--r--drivers/s390/scsi/zfcp_sysfs.c26
6 files changed, 50 insertions, 35 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 1b9e4aee914b..8004b071a9f2 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -104,11 +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);
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 1d4c8fe72752..c82fe65c4128 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -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)
@@ -592,9 +595,11 @@ static void _zfcp_erp_lun_reopen_all(struct zfcp_port *port, int clear,
{
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, 0);
+ spin_unlock(port->adapter->scsi_host->host_lock);
}
static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
@@ -1434,8 +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);
}
/**
@@ -1469,11 +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);
}
/**
@@ -1487,16 +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);
}
/**
@@ -1511,6 +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);
@@ -1520,13 +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 83e3f1408c38..a9c570a09b85 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -126,8 +126,6 @@ extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, struct zfcp_qdio_req *,
extern int zfcp_qdio_open(struct zfcp_qdio *);
extern void zfcp_qdio_close(struct zfcp_qdio *);
extern void zfcp_qdio_siosl(struct zfcp_adapter *);
-extern struct zfcp_fsf_req *zfcp_fsf_get_req(struct zfcp_qdio *,
- struct qdio_buffer *);
/* zfcp_scsi.c */
extern struct scsi_transport_template *zfcp_scsi_transport_template;
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 510e9b06c1a1..0fe8d5d95119 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -770,7 +770,8 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
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);
@@ -2387,12 +2388,3 @@ void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx)
break;
}
}
-
-struct zfcp_fsf_req *zfcp_fsf_get_req(struct zfcp_qdio *qdio,
- struct qdio_buffer *sbal)
-{
- struct qdio_buffer_element *sbale = &sbal->element[0];
- u64 req_id = (unsigned long) sbale->addr;
-
- return zfcp_reqlist_find(qdio->adapter->req_list, req_id);
-}
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 665e3cfaaf85..06025cdaa4ad 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -16,9 +16,9 @@
#define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer))
-static bool enable_multibuffer;
+static bool enable_multibuffer = 1;
module_param_named(datarouter, enable_multibuffer, bool, 0400);
-MODULE_PARM_DESC(datarouter, "Enable hardware data router support");
+MODULE_PARM_DESC(datarouter, "Enable hardware data router support (default on)");
static int zfcp_qdio_buffers_enqueue(struct qdio_buffer **sbal)
{
@@ -224,11 +224,9 @@ int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req,
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;
}
@@ -246,9 +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;
@@ -262,7 +259,6 @@ int zfcp_qdio_sbal_get(struct zfcp_qdio *qdio)
zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1");
}
- spin_lock_irq(&qdio->req_q_lock);
return -EIO;
}
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 3f01bbf0609f..672b57219e11 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -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,\
@@ -75,6 +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_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,
@@ -95,7 +107,7 @@ 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);
@@ -134,7 +146,7 @@ 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);
@@ -184,7 +196,7 @@ 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;
}
@@ -236,7 +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);
@@ -297,7 +309,7 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *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;
retval = zfcp_unit_add(port, fcp_lun);
@@ -315,7 +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))
@@ -347,6 +359,8 @@ static struct attribute *zfcp_unit_attrs[] = {
&dev_attr_unit_in_recovery.attr,
&dev_attr_unit_status.attr,
&dev_attr_unit_access_denied.attr,
+ &dev_attr_unit_access_shared.attr,
+ &dev_attr_unit_access_readonly.attr,
NULL
};
static struct attribute_group zfcp_unit_attr_group = {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-29 07:18:13 +0300