[SCSI] aacraid: Added Sync.mode to support series 7/8/9 controllers
Added Sync. mode to support Series 7/8/9 controller families: This is a
compatibility mode for all these controller families. The Async. (Performance)
mode can be changed in the future. First Async. mode version added for Series
7; Controller parameter aac_sync_mode added
Signed-off-by: Mahesh Rajashekhara <aacraid@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 7ac8fdb..a35f54e 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -325,12 +325,14 @@
{
u32 status[5];
struct Scsi_Host * host = dev->scsi_host_ptr;
+ extern int aac_sync_mode;
/*
* Check the preferred comm settings, defaults from template.
*/
dev->management_fib_count = 0;
spin_lock_init(&dev->manage_lock);
+ spin_lock_init(&dev->sync_lock);
dev->max_fib_size = sizeof(struct hw_fib);
dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size
- sizeof(struct aac_fibhdr)
@@ -344,13 +346,21 @@
(status[0] == 0x00000001)) {
if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
dev->raw_io_64 = 1;
- if (dev->a_ops.adapter_comm) {
- if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1)) {
- dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
- dev->raw_io_interface = 1;
- } else if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)) {
+ dev->sync_mode = aac_sync_mode;
+ if (dev->a_ops.adapter_comm &&
+ (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM))) {
dev->comm_interface = AAC_COMM_MESSAGE;
dev->raw_io_interface = 1;
+ if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1))) {
+ /* driver supports TYPE1 (Tupelo) */
+ dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
+ } else if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE4)) ||
+ (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE3)) ||
+ (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE2))) {
+ /* driver doesn't support TYPE2 (Series7), TYPE3 and TYPE4 */
+ /* switch to sync. mode */
+ dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
+ dev->sync_mode = 1;
}
}
if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
@@ -455,6 +465,7 @@
}
INIT_LIST_HEAD(&dev->fib_list);
+ INIT_LIST_HEAD(&dev->sync_fib_list);
return dev;
}