michaelc@xxxxxxxxxxx wrote:
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index f6a9fe0..06b7b59 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -206,6 +206,16 @@ struct scsi_target {
* for the device at a time. */
unsigned int pdt_1f_for_no_lun; /* PDT = 0x1f */
/* means no lun present */
+ /* commands actually active on LLD. protected by host lock. */
+ unsigned int target_busy;
+ /*
+ * LLDs should set this in the slave_alloc host template callout.
+ * If set to zero then there is not limit.
+ */
+ unsigned int can_queue;
+ unsigned int target_blocked;
+ unsigned int max_target_blocked;
+#define SCSI_DEFAULT_TARGET_BLOCKED 3
char scsi_level;
struct execute_work ew;
Mike,
The starget->can_queue value should come from the targets device_list entry, not the LLD.
To complete this fully, if the LLD had a per-target resource restriction (which I doubt
would be target-specific), it should set a value within the shost template much along the
lines of the shost->can_queue. The starget->can_queue would then be the
min(shost->tgt_can_queue, device_list->tgt_can_queue) and would be set in the scsi_scan code.
-- james s
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