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path: root/drivers/scsi/aacraid/commsup.c
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-rw-r--r--drivers/scsi/aacraid/commsup.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 5322865942e2..a1d303f03480 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -254,6 +254,7 @@ static void fib_dealloc(struct fib * fibptr)
254static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify) 254static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify)
255{ 255{
256 struct aac_queue * q; 256 struct aac_queue * q;
257 unsigned long idx;
257 258
258 /* 259 /*
259 * All of the queues wrap when they reach the end, so we check 260 * 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
263 */ 264 */
264 265
265 q = &dev->queues->queue[qid]; 266 q = &dev->queues->queue[qid];
266 267
267 *index = le32_to_cpu(*(q->headers.producer)); 268 idx = *index = le32_to_cpu(*(q->headers.producer));
268 if ((*index - 2) == le32_to_cpu(*(q->headers.consumer))) 269 /* Interrupt Moderation, only interrupt for first two entries */
270 if (idx != le32_to_cpu(*(q->headers.consumer))) {
271 if (--idx == 0) {
272 if (qid == AdapHighCmdQueue)
273 idx = ADAP_HIGH_CMD_ENTRIES;
274 else if (qid == AdapNormCmdQueue)
275 idx = ADAP_NORM_CMD_ENTRIES;
276 else if (qid == AdapHighRespQueue)
277 idx = ADAP_HIGH_RESP_ENTRIES;
278 else if (qid == AdapNormRespQueue)
279 idx = ADAP_NORM_RESP_ENTRIES;
280 }
281 if (idx != le32_to_cpu(*(q->headers.consumer)))
269 *nonotify = 1; 282 *nonotify = 1;
283 }
270 284
271 if (qid == AdapHighCmdQueue) { 285 if (qid == AdapHighCmdQueue) {
272 if (*index >= ADAP_HIGH_CMD_ENTRIES) 286 if (*index >= ADAP_HIGH_CMD_ENTRIES)