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authorHannes Reinecke <hare@suse.de>2014-06-25 17:27:36 +0400
committerChristoph Hellwig <hch@lst.de>2014-07-18 00:07:37 +0400
commit9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3 (patch)
tree576b86c3ec56dd7176285ec2d27f27ca55f77bc3 /drivers/scsi/arm
parent755f516bbb983915d6cbfb5aa592cc0a5a99fd00 (diff)
downloadlinux-9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3.tar.xz
scsi: use 64-bit LUNs
The SCSI standard defines 64-bit values for LUNs, and large arrays employing large or hierarchical LUN numbers become more and more common. So update the linux SCSI stack to use 64-bit LUN numbers. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Ewan Milne <emilne@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/arm')
-rw-r--r--drivers/scsi/arm/acornscsi.c14
-rw-r--r--drivers/scsi/arm/fas216.c11
-rw-r--r--drivers/scsi/arm/queue.c3
3 files changed, 18 insertions, 10 deletions
diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index 2e797a367608..d89b9b4deb3c 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -760,7 +760,8 @@ intr_ret_t acornscsi_kick(AS_Host *host)
SCpnt->tag = SCpnt->device->current_tag;
} else
#endif
- set_bit(SCpnt->device->id * 8 + SCpnt->device->lun, host->busyluns);
+ set_bit(SCpnt->device->id * 8 +
+ (u8)(SCpnt->device->lun & 0x07), host->busyluns);
host->stats.removes += 1;
@@ -863,7 +864,8 @@ static void acornscsi_done(AS_Host *host, struct scsi_cmnd **SCpntp,
if (!SCpnt->scsi_done)
panic("scsi%d.H: null scsi_done function in acornscsi_done", host->host->host_no);
- clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, host->busyluns);
+ clear_bit(SCpnt->device->id * 8 +
+ (u8)(SCpnt->device->lun & 0x7), host->busyluns);
SCpnt->scsi_done(SCpnt);
} else
@@ -1576,7 +1578,8 @@ void acornscsi_message(AS_Host *host)
printk(KERN_NOTICE "scsi%d.%c: disabling tagged queueing\n",
host->host->host_no, acornscsi_target(host));
host->SCpnt->device->simple_tags = 0;
- set_bit(host->SCpnt->device->id * 8 + host->SCpnt->device->lun, host->busyluns);
+ set_bit(host->SCpnt->device->id * 8 +
+ (u8)(host->SCpnt->device->lun & 0x7), host->busyluns);
break;
#endif
case EXTENDED_MESSAGE | (EXTENDED_SDTR << 8):
@@ -2671,7 +2674,8 @@ int acornscsi_abort(struct scsi_cmnd *SCpnt)
//#if (DEBUG & DEBUG_ABORT)
printk("clear ");
//#endif
- clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, host->busyluns);
+ clear_bit(SCpnt->device->id * 8 +
+ (u8)(SCpnt->device->lun & 0x7), host->busyluns);
/*
* We found the command, and cleared it out. Either
@@ -2853,7 +2857,7 @@ static int acornscsi_show_info(struct seq_file *m, struct Scsi_Host *instance)
shost_for_each_device(scd, instance) {
seq_printf(m, "Device/Lun TaggedQ Sync\n");
- seq_printf(m, " %d/%d ", scd->id, scd->lun);
+ seq_printf(m, " %d/%llu ", scd->id, scd->lun);
if (scd->tagged_supported)
seq_printf(m, "%3sabled(%3d) ",
scd->simple_tags ? "en" : "dis",
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index b46a6f6c0eb3..71cfb1e504c4 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -1821,7 +1821,8 @@ static void fas216_allocate_tag(FAS216_Info *info, struct scsi_cmnd *SCpnt)
SCpnt->tag = SCpnt->device->current_tag;
} else
#endif
- set_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns);
+ set_bit(SCpnt->device->id * 8 +
+ (u8)(SCpnt->device->lun & 0x7), info->busyluns);
info->stats.removes += 1;
switch (SCpnt->cmnd[0]) {
@@ -2171,7 +2172,8 @@ static void fas216_done(FAS216_Info *info, unsigned int result)
* status.
*/
info->device[SCpnt->device->id].parity_check = 0;
- clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns);
+ clear_bit(SCpnt->device->id * 8 +
+ (u8)(SCpnt->device->lun & 0x7), info->busyluns);
fn = (void (*)(FAS216_Info *, struct scsi_cmnd *, unsigned int))SCpnt->host_scribble;
fn(info, SCpnt, result);
@@ -2398,7 +2400,8 @@ static enum res_find fas216_find_command(FAS216_Info *info,
* been set.
*/
info->origSCpnt = NULL;
- clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns);
+ clear_bit(SCpnt->device->id * 8 +
+ (u8)(SCpnt->device->lun & 0x7), info->busyluns);
printk("waiting for execution ");
res = res_success;
} else
@@ -3000,7 +3003,7 @@ void fas216_print_devices(FAS216_Info *info, struct seq_file *m)
shost_for_each_device(scd, info->host) {
dev = &info->device[scd->id];
- seq_printf(m, " %d/%d ", scd->id, scd->lun);
+ seq_printf(m, " %d/%llu ", scd->id, scd->lun);
if (scd->tagged_supported)
seq_printf(m, "%3sabled(%3d) ",
scd->simple_tags ? "en" : "dis",
diff --git a/drivers/scsi/arm/queue.c b/drivers/scsi/arm/queue.c
index cb11ccef54e5..3441ce3ebabf 100644
--- a/drivers/scsi/arm/queue.c
+++ b/drivers/scsi/arm/queue.c
@@ -167,7 +167,8 @@ struct scsi_cmnd *queue_remove_exclude(Queue_t *queue, unsigned long *exclude)
spin_lock_irqsave(&queue->queue_lock, flags);
list_for_each(l, &queue->head) {
QE_t *q = list_entry(l, QE_t, list);
- if (!test_bit(q->SCpnt->device->id * 8 + q->SCpnt->device->lun, exclude)) {
+ if (!test_bit(q->SCpnt->device->id * 8 +
+ (u8)(q->SCpnt->device->lun & 0x7), exclude)) {
SCpnt = __queue_remove(queue, l);
break;
}