Merge master.kernel.org:/home/rmk/linux-2.6-mmc

[linux-2.6-omap-h63xx.git] / drivers / scsi / aacraid / commsup.c

diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 5322865942e28b1a3911d83a8d2d6104263dd869..a1d303f034808f3e31a2f44860355f1e240d7ee4 100644 (file)
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -254,6 +254,7 @@ static void fib_dealloc(struct fib * fibptr)
 static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify)
 {
        struct aac_queue * q;
+       unsigned long idx;
 
        /*
         *      All of the queues wrap when they reach the end, so we check
@@ -263,10 +264,23 @@ static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entr
         */
 
        q = &dev->queues->queue[qid];
-       
-       *index = le32_to_cpu(*(q->headers.producer));
-       if ((*index - 2) == le32_to_cpu(*(q->headers.consumer)))
+
+       idx = *index = le32_to_cpu(*(q->headers.producer));
+       /* Interrupt Moderation, only interrupt for first two entries */
+       if (idx != le32_to_cpu(*(q->headers.consumer))) {
+               if (--idx == 0) {
+                       if (qid == AdapHighCmdQueue)
+                               idx = ADAP_HIGH_CMD_ENTRIES;
+                       else if (qid == AdapNormCmdQueue)
+                               idx = ADAP_NORM_CMD_ENTRIES;
+                       else if (qid == AdapHighRespQueue) 
+                               idx = ADAP_HIGH_RESP_ENTRIES;
+                       else if (qid == AdapNormRespQueue) 
+                               idx = ADAP_NORM_RESP_ENTRIES;
+               }
+               if (idx != le32_to_cpu(*(q->headers.consumer)))
                        *nonotify = 1; 
+       }
 
        if (qid == AdapHighCmdQueue) {
                if (*index >= ADAP_HIGH_CMD_ENTRIES)