This patch adds definitions to support for different operating modes for LSI rdac storage.
Currently, rdac support 3 operation modes.
1. RDAC mode(legacy)
2. AVT mode
3. IOSHIP mode
These definitions are used while activating the path(rdac_activate).
Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
Reviewed-by: Yanling Qi <yanling.qi@xxxxxxx>
Reviewed-by: Sudhir Dachepalli <Sudhir.Dachepalli@xxxxxxx>
Reviewed-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@xxxxxxx>
Reviewed-by: Bob Stankey <Robert.Stankey@xxxxxxx>
Reviewed-by: Vijay Chauhan <Vijay.Chauhan@xxxxxxx>
---
--- linux-2.6.38/drivers/scsi/device_handler/scsi_dh_rdac.c.orig 2011-03-17 16:31:53.000000000 -0500
+++ linux-2.6.38/drivers/scsi/device_handler/scsi_dh_rdac.c 2011-03-17 16:47:52.000000000 -0500
@@ -182,6 +182,12 @@ struct rdac_dh_data {
struct rdac_controller *ctlr;
#define UNINITIALIZED_LUN (1 << 8)
unsigned lun;
+
+#define RDAC_MODE 0
+#define RDAC_MODE_AVT 1
+#define RDAC_MODE_IOSHIP 2
+ unsigned char mode;
+
#define RDAC_STATE_ACTIVE 0
#define RDAC_STATE_PASSIVE 1
unsigned char state;
@@ -190,6 +196,11 @@ struct rdac_dh_data {
#define RDAC_LUN_OWNED 1
#define RDAC_LUN_AVT 2
char lun_state;
+
+#define RDAC_PREFERRED 0
+#define RDAC_NON_PREFERRED 1
+ char preferred;
+
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
union {
struct c2_inquiry c2;
@@ -199,11 +210,15 @@ struct rdac_dh_data {
} inq;
};
+static const char *mode[] = {
+ "RDAC",
+ "AVT",
+ "IOSHIP",
+};
static const char *lun_state[] =
{
"unowned",
"owned",
- "owned (AVT mode)",
};
struct rdac_queue_data {
@@ -836,8 +851,9 @@ static int rdac_bus_attach(struct scsi_d
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
sdev_printk(KERN_NOTICE, sdev,
- "%s: LUN %d (%s)\n",
- RDAC_NAME, h->lun, lun_state[(int)h->lun_state]);
+ "%s: LUN %d (%s) (%s)\n",
+ RDAC_NAME, h->lun, mode[(int)h->mode],
+ lun_state[(int)h->lun_state]);
return 0;
--
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