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scsi: use 64-bit LUNs

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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>
This commit is contained in:
Hannes Reinecke
2014-06-25 15:27:36 +02:00
committed by Christoph Hellwig
parent 755f516bbb
commit 9cb78c16f5
86 changed files with 438 additions and 429 deletions
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15
drivers/scsi/scsi_debug.c
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@@ -228,9 +228,9 @@ struct sdebug_dev_info {
unsigned char sense_buff[SDEBUG_SENSE_LEN]; /* weak nexus */
unsigned int channel;
unsigned int target;
unsigned int lun;
u64 lun;
struct sdebug_host_info *sdbg_host;
unsigned int wlun;
u64 wlun;
char reset;
char stopped;
char used;
@@ -2278,7 +2278,8 @@ static int resp_report_luns(struct scsi_cmnd * scp,
struct sdebug_dev_info * devip)
{
unsigned int alloc_len;
int lun_cnt, i, upper, num, n, wlun, lun;
int lun_cnt, i, upper, num, n;
u64 wlun, lun;
unsigned char *cmd = (unsigned char *)scp->cmnd;
int select_report = (int)cmd[2];
struct scsi_lun *one_lun;
@@ -2462,7 +2463,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev)
static int scsi_debug_slave_alloc(struct scsi_device *sdp)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %u>\n",
printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue);
return 0;
@@ -2473,7 +2474,7 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp)
struct sdebug_dev_info *devip;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %u>\n",
printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN)
sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN;
@@ -2496,7 +2497,7 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp)
(struct sdebug_dev_info *)sdp->hostdata;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %u>\n",
printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
if (devip) {
/* make this slot available for re-use */
@@ -2708,7 +2709,7 @@ static int schedule_resp(struct scsi_cmnd * cmnd,
if (scsi_result) {
struct scsi_device * sdp = cmnd->device;
printk(KERN_INFO "scsi_debug: <%u %u %u %u> "
printk(KERN_INFO "scsi_debug: <%u %u %u %llu> "
"non-zero result=0x%x\n", sdp->host->host_no,
sdp->channel, sdp->id, sdp->lun, scsi_result);
}