#define SCSI_SENSE_VALID(scmd) \
(((scmd)->sense_buffer[0] & 0x70) == 0x70)
-/*
- * Special value for scanning to specify scanning or rescanning of all
- * possible channels, (target) ids, or luns on a given shost.
- */
-#define SCAN_WILD_CARD ~0
-
/* hosts.c */
extern int scsi_init_hosts(void);
extern void scsi_exit_hosts(void);
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport.h>
#include "scsi_priv.h"
#include "scsi_logging.h"
if (IS_ERR(shost))
return PTR_ERR(shost);
- error = scsi_scan_host_selected(shost, channel, id, lun, 1);
+ if (shost->transportt->user_scan)
+ error = shost->transportt->user_scan(shost, channel, id, lun);
+ else
+ error = scsi_scan_host_selected(shost, channel, id, lun, 1);
scsi_host_put(shost);
return error;
}
struct scsi_target *starget;
struct scsi_target *found_target;
- /*
- * Obtain the real parent from the transport. The transport
- * is allowed to fail (no error) if there is nothing at that
- * target id.
- */
- if (shost->transportt->target_parent) {
- spin_lock_irqsave(shost->host_lock, flags);
- parent = shost->transportt->target_parent(shost, channel, id);
- spin_unlock_irqrestore(shost->host_lock, flags);
- if (!parent)
- return NULL;
- }
-
starget = kmalloc(size, GFP_KERNEL);
if (!starget) {
printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__);
struct scsi_device *sdev;
struct device *parent = &shost->shost_gendev;
int res;
- struct scsi_target *starget = scsi_alloc_target(parent, channel, id);
+ struct scsi_target *starget;
+ starget = scsi_alloc_target(parent, channel, id);
if (!starget)
return ERR_PTR(-ENOMEM);
return -EINVAL;
if (check_set(&lun, s3))
return -EINVAL;
- res = scsi_scan_host_selected(shost, channel, id, lun, 1);
+ if (shost->transportt->user_scan)
+ res = shost->transportt->user_scan(shost, channel, id, lun);
+ else
+ res = scsi_scan_host_selected(shost, channel, id, lun, 1);
return res;
}
/*
* Must be called with shost->host_lock held
*/
-static struct device *fc_target_parent(struct Scsi_Host *shost,
- int channel, uint id)
+static int fc_user_scan(struct Scsi_Host *shost, uint channel,
+ uint id, uint lun)
{
struct fc_rport *rport;
- list_for_each_entry(rport, &fc_host_rports(shost), peers)
- if ((rport->channel == channel) &&
- (rport->scsi_target_id == id))
- return &rport->dev;
+ list_for_each_entry(rport, &fc_host_rports(shost), peers) {
+ if (rport->scsi_target_id == -1)
+ continue;
- return NULL;
+ if ((channel == SCAN_WILD_CARD || channel == rport->channel) &&
+ (id == SCAN_WILD_CARD || id == rport->scsi_target_id)) {
+ scsi_scan_target(&rport->dev, rport->channel,
+ rport->scsi_target_id, lun, 1);
+ }
+ }
+
+ return 0;
}
struct scsi_transport_template *
/* Transport uses the shost workq for scsi scanning */
i->t.create_work_queue = 1;
- i->t.target_parent = fc_target_parent;
+ i->t.user_scan = fc_user_scan;
/*
* Setup SCSI Target Attributes.
#include <linux/slab.h>
#include <linux/string.h>
+#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
struct sas_host_attrs {
struct list_head rphy_list;
- spinlock_t lock;
+ struct mutex lock;
u32 next_target_id;
};
#define to_sas_host_attrs(host) ((struct sas_host_attrs *)(host)->shost_data)
struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
INIT_LIST_HEAD(&sas_host->rphy_list);
- spin_lock_init(&sas_host->lock);
+ mutex_init(&sas_host->lock);
sas_host->next_target_id = 0;
return 0;
}
transport_add_device(&rphy->dev);
transport_configure_device(&rphy->dev);
- spin_lock(&sas_host->lock);
+ mutex_lock(&sas_host->lock);
list_add_tail(&rphy->list, &sas_host->rphy_list);
if (identify->device_type == SAS_END_DEVICE &&
(identify->target_port_protocols &
rphy->scsi_target_id = sas_host->next_target_id++;
else
rphy->scsi_target_id = -1;
- spin_unlock(&sas_host->lock);
+ mutex_unlock(&sas_host->lock);
if (rphy->scsi_target_id != -1) {
scsi_scan_target(&rphy->dev, parent->number,
struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
- spin_lock(&sas_host->lock);
+ mutex_lock(&sas_host->lock);
list_del(&rphy->list);
- spin_unlock(&sas_host->lock);
+ mutex_unlock(&sas_host->lock);
transport_destroy_device(&rphy->dev);
put_device(rphy->dev.parent);
device_del(dev);
transport_destroy_device(dev);
- spin_lock(&sas_host->lock);
+ mutex_lock(&sas_host->lock);
list_del(&rphy->list);
- spin_unlock(&sas_host->lock);
+ mutex_unlock(&sas_host->lock);
parent->rphy = NULL;
* SCSI scan helper
*/
-static struct device *sas_target_parent(struct Scsi_Host *shost,
- int channel, uint id)
+static int sas_user_scan(struct Scsi_Host *shost, uint channel,
+ uint id, uint lun)
{
struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
struct sas_rphy *rphy;
- struct device *dev = NULL;
- spin_lock(&sas_host->lock);
+ mutex_lock(&sas_host->lock);
list_for_each_entry(rphy, &sas_host->rphy_list, list) {
struct sas_phy *parent = dev_to_phy(rphy->dev.parent);
- if (parent->number == channel &&
- rphy->scsi_target_id == id)
- dev = &rphy->dev;
+
+ if (rphy->scsi_target_id == -1)
+ continue;
+
+ if ((channel == SCAN_WILD_CARD || channel == parent->number) &&
+ (id == SCAN_WILD_CARD || id == rphy->scsi_target_id)) {
+ scsi_scan_target(&rphy->dev, parent->number,
+ rphy->scsi_target_id, lun, 1);
+ }
}
- spin_unlock(&sas_host->lock);
+ mutex_unlock(&sas_host->lock);
- return dev;
+ return 0;
}
return NULL;
memset(i, 0, sizeof(struct sas_internal));
- i->t.target_parent = sas_target_parent;
+ i->t.user_scan = sas_user_scan;
i->t.host_attrs.ac.attrs = &i->host_attrs[0];
i->t.host_attrs.ac.class = &sas_host_class.class;
#define MAX_SCSI_DEVICE_CODE 15
extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
+/*
+ * Special value for scanning to specify scanning or rescanning of all
+ * possible channels, (target) ids, or luns on a given shost.
+ */
+#define SCAN_WILD_CARD ~0
+
/*
* SCSI opcodes
*/
struct transport_container device_attrs;
/*
- * If set, call target_parent prior to allocating a scsi_target,
- * so we get the appropriate parent for the target. This function
- * is required for transports like FC and iSCSI that do not put the
- * scsi_target under scsi_host.
+ * If set, called from sysfs and legacy procfs rescanning code.
*/
- struct device *(*target_parent)(struct Scsi_Host *, int, uint);
+ int (*user_scan)(struct Scsi_Host *, uint, uint, uint);
/* The size of the specific transport attribute structure (a
* space of this size will be left at the end of the