---

yaml
---
r: 227262
b: refs/heads/master
c: 3d6c76f
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4f325184f2d4c1f2258873b2a333005dc4dfcbc0
+refs/heads/master: 3d6c76ff32bb9b2ebf6e859855d315eb42e3df50

trunk/arch/s390/include/asm/qdio.h

@@ -361,6 +361,7 @@ struct qdio_initialize {
 	qdio_handler_t *input_handler;
 	qdio_handler_t *output_handler;
 	void (*queue_start_poll) (struct ccw_device *, int, unsigned long);
+	int scan_threshold;
 	unsigned long int_parm;
 	void **input_sbal_addr_array;
 	void **output_sbal_addr_array;

trunk/drivers/s390/cio/qdio.h

@@ -249,6 +249,8 @@ struct qdio_output_q {
 	int use_enh_siga;
 	/* timer to check for more outbound work */
 	struct timer_list timer;
+	/* used SBALs before tasklet schedule */
+	int scan_threshold;
 };
 
 /*

trunk/drivers/s390/cio/qdio_main.c

@@ -1492,7 +1492,13 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
 		qperf_inc(q, fast_requeue);
 
 out:
-	tasklet_schedule(&q->tasklet);
+	/* in case of SIGA errors we must process the error immediately */
+	if (used >= q->u.out.scan_threshold || rc)
+		tasklet_schedule(&q->tasklet);
+	else
+		/* free the SBALs in case of no further traffic */
+		if (!timer_pending(&q->u.out.timer))
+			mod_timer(&q->u.out.timer, jiffies + HZ);
 	return rc;
 }
 

trunk/drivers/s390/cio/qdio_setup.c

@@ -178,6 +178,7 @@ static void setup_queues(struct qdio_irq *irq_ptr,
 		setup_queues_misc(q, irq_ptr, qdio_init->output_handler, i);
 
 		q->is_input_q = 0;
+		q->u.out.scan_threshold = qdio_init->scan_threshold;
 		setup_storage_lists(q, irq_ptr, output_sbal_array, i);
 		output_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
 

trunk/drivers/s390/net/qeth_core_main.c

@@ -3831,6 +3831,8 @@ static int qeth_qdio_establish(struct qeth_card *card)
 	init_data.int_parm               = (unsigned long) card;
 	init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
 	init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
+	init_data.scan_threshold =
+		(card->info.type == QETH_CARD_TYPE_IQD) ? 8 : 32;
 
 	if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
 		QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {

trunk/drivers/s390/scsi/zfcp_qdio.c

@@ -292,6 +292,8 @@ static void zfcp_qdio_setup_init_data(struct qdio_initialize *id,
 	id->int_parm = (unsigned long) qdio;
 	id->input_sbal_addr_array = (void **) (qdio->res_q);
 	id->output_sbal_addr_array = (void **) (qdio->req_q);
+	id->scan_threshold =
+		QDIO_MAX_BUFFERS_PER_Q - ZFCP_QDIO_MAX_SBALS_PER_REQ * 2;
 }
 
 /**