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>

5 files changed, 18 insertions, 19 deletions

diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 76c05bc..f37ea6f 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -405,7 +405,7 @@ typedef struct _VirtTarget {
 typedef struct _VirtDevice {
 	VirtTarget		*vtarget;
 	u8			 configured_lun;
-	int			 lun;
+	u64			 lun;
 } VirtDevice;
 
 /*
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 02a3eef..bf2a2ce 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -204,7 +204,7 @@ mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
 	 || (loops > 0 && ioc->active == 0)) {
 		spin_unlock_irqrestore(shost->host_lock, flags);
 		dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-			"mptfc_block_error_handler.%d: %d:%d, port status is "
+			"mptfc_block_error_handler.%d: %d:%llu, port status is "
 			"%x, active flag %d, deferring %s recovery.\n",
 			ioc->name, ioc->sh->host_no,
 			SCpnt->device->id, SCpnt->device->lun,
@@ -218,7 +218,7 @@ mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
 	if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
 	 || ioc->active == 0) {
 		dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-			"%s.%d: %d:%d, failing recovery, "
+			"%s.%d: %d:%llu, failing recovery, "
 			"port state %x, active %d, vdevice %p.\n", caller,
 			ioc->name, ioc->sh->host_no,
 			SCpnt->device->id, SCpnt->device->lun, ready,
@@ -226,7 +226,7 @@ mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
 		return FAILED;
 	}
 	dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-		"%s.%d: %d:%d, executing recovery.\n", caller,
+		"%s.%d: %d:%llu, executing recovery.\n", caller,
 		ioc->name, ioc->sh->host_no,
 		SCpnt->device->id, SCpnt->device->lun));
 	return (*func)(SCpnt);
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 2a1c6f2..39e5668 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -95,7 +95,7 @@ static void	mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
 static void	mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
 
 int	mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
-		int lun, int ctx2abort, ulong timeout);
+		u64 lun, int ctx2abort, ulong timeout);
 
 int		mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 int		mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
@@ -536,7 +536,7 @@ mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pSc
 	}
 
 	scsi_print_command(sc);
-	printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
+	printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %llu\n",
 	    ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
 	printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
 	    "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
@@ -692,7 +692,7 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 		 */
 		if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 		    pScsiReply->ResponseInfo) {
-			printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
+			printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%llu] "
 			"FCP_ResponseInfo=%08xh\n", ioc->name,
 			sc->device->host->host_no, sc->device->channel,
 			sc->device->id, sc->device->lun,
@@ -1155,7 +1155,7 @@ mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSI
 		return;
 	ioc = hd->ioc;
 	if (time - hd->last_queue_full > 10 * HZ) {
-		dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
+		dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n",
 				ioc->name, 0, sc->device->id, sc->device->lun));
 		hd->last_queue_full = time;
 	}
@@ -1518,7 +1518,7 @@ mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
  *
  **/
 int
-mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
+mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
 	int ctx2abort, ulong timeout)
 {
 	MPT_FRAME_HDR	*mf;
@@ -2380,7 +2380,7 @@ mptscsih_slave_configure(struct scsi_device *sdev)
 	vdevice = sdev->hostdata;
 
 	dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
-		"device @ %p, channel=%d, id=%d, lun=%d\n",
+		"device @ %p, channel=%d, id=%d, lun=%llu\n",
 		ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
 	if (ioc->bus_type == SPI)
 		dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
@@ -2971,7 +2971,7 @@ mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
 					   + (my_idx * MPT_SENSE_BUFFER_ALLOC));
 
 	devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
-	    "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
+	    "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
 	    ioc->name, __func__, cmd, io->channel, io->id, io->lun));
 
 	if (dir == MPI_SCSIIO_CONTROL_READ)
diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h
index 99e3390..e1b1a19 100644
--- a/drivers/message/fusion/mptscsih.h
+++ b/drivers/message/fusion/mptscsih.h
@@ -98,7 +98,7 @@ typedef struct _internal_cmd {
 	u8		cmd;		/* SCSI Op Code */
 	u8		channel;	/* bus number */
 	u8		id;		/* SCSI ID (virtual) */
-	int		lun;
+	u64		lun;
 	u8		flags;		/* Bit Field - See above */
 	u8		physDiskNum;	/* Phys disk number, -1 else */
 	u8		rsvd2;
@@ -115,7 +115,7 @@ extern int mptscsih_show_info(struct seq_file *, struct Scsi_Host *);
 extern const char * mptscsih_info(struct Scsi_Host *SChost);
 extern int mptscsih_qcmd(struct scsi_cmnd *SCpnt);
 extern int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel,
-	u8 id, int lun, int ctx2abort, ulong timeout);
+	u8 id, u64 lun, int ctx2abort, ulong timeout);
 extern void mptscsih_slave_destroy(struct scsi_device *device);
 extern int mptscsih_slave_configure(struct scsi_device *device);
 extern int mptscsih_abort(struct scsi_cmnd * SCpnt);
diff --git a/drivers/message/i2o/i2o_scsi.c b/drivers/message/i2o/i2o_scsi.c
index 1d31d72..e7de92c 100644
--- a/drivers/message/i2o/i2o_scsi.c
+++ b/drivers/message/i2o/i2o_scsi.c
@@ -78,7 +78,7 @@ static unsigned int i2o_scsi_max_lun = 255;
 struct i2o_scsi_host {
 	struct Scsi_Host *scsi_host;	/* pointer to the SCSI host */
 	struct i2o_controller *iop;	/* pointer to the I2O controller */
-	unsigned int lun;	/* lun's used for block devices */
+	u64 lun;	/* lun's used for block devices */
 	struct i2o_device *channel[0];	/* channel->i2o_dev mapping table */
 };
 
@@ -287,9 +287,8 @@ static int i2o_scsi_probe(struct device *dev)
 	}
 
 	if (le64_to_cpu(lun) >= scsi_host->max_lun) {
-		osm_warn("SCSI device lun (%lu) >= max_lun of I2O host (%d)",
-			 (long unsigned int)le64_to_cpu(lun),
-			 scsi_host->max_lun);
+		osm_warn("SCSI device lun (%llu) >= max_lun of I2O host (%d)",
+			 le64_to_cpu(lun), scsi_host->max_lun);
 		return -EFAULT;
 	}
 
@@ -308,9 +307,9 @@ static int i2o_scsi_probe(struct device *dev)
 	if (rc)
 		goto err;
 
-	osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %ld\n",
+	osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %llu\n",
 		 i2o_dev->lct_data.tid, channel, le32_to_cpu(id),
-		 (long unsigned int)le64_to_cpu(lun));
+		 le64_to_cpu(lun));
 
 	return 0;