[S390] qdio: move adapter interrupt tasklet code

Move the adapter interrupt tasklet function to the qdio main code
since all the functions used by the tasklet are located there.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

4 files changed, 75 insertions, 80 deletions

diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 13bcb81..b1241f8 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -351,15 +351,6 @@ static inline unsigned long long get_usecs(void)
 	((bufnr - dec) & QDIO_MAX_BUFFERS_MASK)
 
 /* prototypes for thin interrupt */
-void qdio_sync_after_thinint(struct qdio_q *q);
-int get_buf_state(struct qdio_q *q, unsigned int bufnr, unsigned char *state,
-		  int auto_ack);
-void qdio_check_outbound_after_thinint(struct qdio_q *q);
-int qdio_inbound_q_moved(struct qdio_q *q);
-void qdio_kick_handler(struct qdio_q *q);
-void qdio_stop_polling(struct qdio_q *q);
-int qdio_siga_sync_q(struct qdio_q *q);
-
 void qdio_setup_thinint(struct qdio_irq *irq_ptr);
 int qdio_establish_thinint(struct qdio_irq *irq_ptr);
 void qdio_shutdown_thinint(struct qdio_irq *irq_ptr);
@@ -392,4 +383,6 @@ void qdio_setup_destroy_sysfs(struct ccw_device *cdev);
 int qdio_setup_init(void);
 void qdio_setup_exit(void);
 
+int debug_get_buf_state(struct qdio_q *q, unsigned int bufnr,
+			unsigned char *state);
 #endif /* _CIO_QDIO_H */
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index e3434b3..b8626d4 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -70,9 +70,8 @@ static int qstat_show(struct seq_file *m, void *v)
 	seq_printf(m, "slsb buffer states:\n");
 	seq_printf(m, "|0      |8      |16     |24     |32     |40     |48     |56  63|\n");
 
-	qdio_siga_sync_q(q);
 	for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; i++) {
-		get_buf_state(q, i, &state, 0);
+		debug_get_buf_state(q, i, &state);
 		switch (state) {
 		case SLSB_P_INPUT_NOT_INIT:
 		case SLSB_P_OUTPUT_NOT_INIT:
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index d79cf5b..377d881 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -231,8 +231,8 @@ static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
 	return i;
 }
 
-inline int get_buf_state(struct qdio_q *q, unsigned int bufnr,
-		  unsigned char *state, int auto_ack)
+static inline int get_buf_state(struct qdio_q *q, unsigned int bufnr,
+				unsigned char *state, int auto_ack)
 {
 	return get_buf_states(q, bufnr, state, 1, auto_ack);
 }
@@ -276,7 +276,7 @@ void qdio_init_buf_states(struct qdio_irq *irq_ptr)
 			       QDIO_MAX_BUFFERS_PER_Q);
 }
 
-static int qdio_siga_sync(struct qdio_q *q, unsigned int output,
+static inline int qdio_siga_sync(struct qdio_q *q, unsigned int output,
 			  unsigned int input)
 {
 	int cc;
@@ -293,7 +293,7 @@ static int qdio_siga_sync(struct qdio_q *q, unsigned int output,
 	return cc;
 }
 
-inline int qdio_siga_sync_q(struct qdio_q *q)
+static inline int qdio_siga_sync_q(struct qdio_q *q)
 {
 	if (q->is_input_q)
 		return qdio_siga_sync(q, 0, q->mask);
@@ -358,8 +358,7 @@ static inline int qdio_siga_input(struct qdio_q *q)
 	return cc;
 }
 
-/* called from thinint inbound handler */
-void qdio_sync_after_thinint(struct qdio_q *q)
+static inline void qdio_sync_after_thinint(struct qdio_q *q)
 {
 	if (pci_out_supported(q)) {
 		if (need_siga_sync_thinint(q))
@@ -370,7 +369,14 @@ void qdio_sync_after_thinint(struct qdio_q *q)
 		qdio_siga_sync_q(q);
 }
 
-inline void qdio_stop_polling(struct qdio_q *q)
+int debug_get_buf_state(struct qdio_q *q, unsigned int bufnr,
+			unsigned char *state)
+{
+	qdio_siga_sync_q(q);
+	return get_buf_states(q, bufnr, state, 1, 0);
+}
+
+static inline void qdio_stop_polling(struct qdio_q *q)
 {
 	if (!q->u.in.polling)
 		return;
@@ -516,7 +522,7 @@ out:
 	return q->first_to_check;
 }
 
-int qdio_inbound_q_moved(struct qdio_q *q)
+static int qdio_inbound_q_moved(struct qdio_q *q)
 {
 	int bufnr;
 
@@ -570,7 +576,23 @@ static int qdio_inbound_q_done(struct qdio_q *q)
 	}
 }
 
-void qdio_kick_handler(struct qdio_q *q)
+static inline int tiqdio_inbound_q_done(struct qdio_q *q)
+{
+	unsigned char state = 0;
+
+	if (!atomic_read(&q->nr_buf_used))
+		return 1;
+
+	qdio_siga_sync_q(q);
+	get_buf_state(q, q->first_to_check, &state, 0);
+
+	if (state == SLSB_P_INPUT_PRIMED)
+		/* more work coming */
+		return 0;
+	return 1;
+}
+
+static void qdio_kick_handler(struct qdio_q *q)
 {
 	int start = q->first_to_kick;
 	int end = q->first_to_check;
@@ -619,7 +641,6 @@ again:
 		goto again;
 }
 
-/* inbound tasklet */
 void qdio_inbound_processing(unsigned long data)
 {
 	struct qdio_q *q = (struct qdio_q *)data;
@@ -797,8 +818,7 @@ void qdio_outbound_timer(unsigned long data)
 	tasklet_schedule(&q->tasklet);
 }
 
-/* called from thinint inbound tasklet */
-void qdio_check_outbound_after_thinint(struct qdio_q *q)
+static inline void qdio_check_outbound_after_thinint(struct qdio_q *q)
 {
 	struct qdio_q *out;
 	int i;
@@ -811,6 +831,46 @@ void qdio_check_outbound_after_thinint(struct qdio_q *q)
 			tasklet_schedule(&out->tasklet);
 }
 
+static void __tiqdio_inbound_processing(struct qdio_q *q)
+{
+	qdio_perf_stat_inc(&perf_stats.thinint_inbound);
+	qdio_sync_after_thinint(q);
+
+	/*
+	 * The interrupt could be caused by a PCI request. Check the
+	 * PCI capable outbound queues.
+	 */
+	qdio_check_outbound_after_thinint(q);
+
+	if (!qdio_inbound_q_moved(q))
+		return;
+
+	qdio_kick_handler(q);
+
+	if (!tiqdio_inbound_q_done(q)) {
+		qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
+		if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+			tasklet_schedule(&q->tasklet);
+	}
+
+	qdio_stop_polling(q);
+	/*
+	 * We need to check again to not lose initiative after
+	 * resetting the ACK state.
+	 */
+	if (!tiqdio_inbound_q_done(q)) {
+		qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
+		if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+			tasklet_schedule(&q->tasklet);
+	}
+}
+
+void tiqdio_inbound_processing(unsigned long data)
+{
+	struct qdio_q *q = (struct qdio_q *)data;
+	__tiqdio_inbound_processing(q);
+}
+
 static inline void qdio_set_state(struct qdio_irq *irq_ptr,
 				  enum qdio_irq_states state)
 {
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index c655d01..e122f78 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -126,68 +126,11 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
 	}
 }
 
-static inline int tiqdio_inbound_q_done(struct qdio_q *q)
-{
-	unsigned char state = 0;
-
-	if (!atomic_read(&q->nr_buf_used))
-		return 1;
-
-	qdio_siga_sync_q(q);
-	get_buf_state(q, q->first_to_check, &state, 0);
-
-	if (state == SLSB_P_INPUT_PRIMED)
-		/* more work coming */
-		return 0;
-	return 1;
-}
-
 static inline int shared_ind(struct qdio_irq *irq_ptr)
 {
 	return irq_ptr->dsci == &q_indicators[TIQDIO_SHARED_IND].ind;
 }
 
-static void __tiqdio_inbound_processing(struct qdio_q *q)
-{
-	qdio_perf_stat_inc(&perf_stats.thinint_inbound);
-	qdio_sync_after_thinint(q);
-
-	/*
-	 * Maybe we have work on our outbound queues... at least
-	 * we have to check the PCI capable queues.
-	 */
-	qdio_check_outbound_after_thinint(q);
-
-	if (!qdio_inbound_q_moved(q))
-		return;
-
-	qdio_kick_handler(q);
-
-	if (!tiqdio_inbound_q_done(q)) {
-		qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
-		if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
-			tasklet_schedule(&q->tasklet);
-	}
-
-	qdio_stop_polling(q);
-	/*
-	 * We need to check again to not lose initiative after
-	 * resetting the ACK state.
-	 */
-	if (!tiqdio_inbound_q_done(q)) {
-		qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
-		if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
-			tasklet_schedule(&q->tasklet);
-	}
-}
-
-void tiqdio_inbound_processing(unsigned long data)
-{
-	struct qdio_q *q = (struct qdio_q *)data;
-
-	__tiqdio_inbound_processing(q);
-}
-
 /* check for work on all inbound thinint queues */
 static void tiqdio_tasklet_fn(unsigned long data)
 {