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>

1 files changed, 19 insertions, 16 deletions

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 5269aee1df3b..b22c75305b44 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -920,7 +920,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	srb_t *sp;
 	int ret;
-	unsigned int id, lun;
+	unsigned int id;
+	uint64_t lun;
 	unsigned long flags;
 	int rval, wait = 0;
 	struct qla_hw_data *ha = vha->hw;
@@ -944,7 +945,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	}
 
 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
-	    "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
+	    "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p\n",
 	    vha->host_no, id, lun, sp, cmd);
 
 	/* Get a reference to the sp and drop the lock.*/
@@ -995,7 +996,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	}
 
 	ql_log(ql_log_info, vha, 0x801c,
-	    "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
+	    "Abort command issued nexus=%ld:%d:%llu --  %d %x.\n",
 	    vha->host_no, id, lun, wait, ret);
 
 	return ret;
@@ -1003,7 +1004,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 
 int
 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
-	unsigned int l, enum nexus_wait_type type)
+	uint64_t l, enum nexus_wait_type type)
 {
 	int cnt, match, status;
 	unsigned long flags;
@@ -1060,7 +1061,7 @@ static char *reset_errors[] = {
 
 static int
 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
-    struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
+    struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, uint64_t, int))
 {
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
@@ -1075,7 +1076,7 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 		return err;
 
 	ql_log(ql_log_info, vha, 0x8009,
-	    "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
+	    "%s RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", name, vha->host_no,
 	    cmd->device->id, cmd->device->lun, cmd);
 
 	err = 0;
@@ -1100,14 +1101,14 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 	}
 
 	ql_log(ql_log_info, vha, 0x800e,
-	    "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
+	    "%s RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n", name,
 	    vha->host_no, cmd->device->id, cmd->device->lun, cmd);
 
 	return SUCCESS;
 
 eh_reset_failed:
 	ql_log(ql_log_info, vha, 0x800f,
-	    "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
+	    "%s RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n", name,
 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
 	    cmd);
 	return FAILED;
@@ -1154,7 +1155,8 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
 	int ret = FAILED;
-	unsigned int id, lun;
+	unsigned int id;
+	uint64_t lun;
 
 	id = cmd->device->id;
 	lun = cmd->device->lun;
@@ -1169,7 +1171,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 	ret = FAILED;
 
 	ql_log(ql_log_info, vha, 0x8012,
-	    "BUS RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
+	    "BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
 
 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 		ql_log(ql_log_fatal, vha, 0x8013,
@@ -1193,7 +1195,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 
 eh_bus_reset_done:
 	ql_log(ql_log_warn, vha, 0x802b,
-	    "BUS RESET %s nexus=%ld:%d:%d.\n",
+	    "BUS RESET %s nexus=%ld:%d:%llu.\n",
 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
 
 	return ret;
@@ -1220,14 +1222,15 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 	struct qla_hw_data *ha = vha->hw;
 	int ret = FAILED;
-	unsigned int id, lun;
+	unsigned int id;
+	uint64_t lun;
 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 
 	id = cmd->device->id;
 	lun = cmd->device->lun;
 
 	ql_log(ql_log_info, vha, 0x8018,
-	    "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
+	    "ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
 
 	/*
 	 * No point in issuing another reset if one is active.  Also do not
@@ -1273,7 +1276,7 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 
 eh_host_reset_lock:
 	ql_log(ql_log_info, vha, 0x8017,
-	    "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
+	    "ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
 
 	return ret;
@@ -1409,7 +1412,7 @@ static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
 		return;
 
 	ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
-	    "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
+	    "Queue depth adjusted-down to %d for nexus=%ld:%d:%llu.\n",
 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
 }
 
@@ -1432,7 +1435,7 @@ static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
 		scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
 
 	ql_dbg(ql_dbg_io, vha, 0x302a,
-	    "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
+	    "Queue depth adjusted-up to %d for nexus=%ld:%d:%llu.\n",
 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
 }