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Commit 60b5df2f authored by Jan Glauber's avatar Jan Glauber Committed by Martin Schwidefsky
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[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: default avatarJan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent f3dfa86c
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Showing with 75 additions and 80 deletions
drivers/s390/cio/qdio.h
View file @ 60b5df2f
......@@ -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 */
drivers/s390/cio/qdio_debug.c
View file @ 60b5df2f
......@@ -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:
......
drivers/s390/cio/qdio_main.c
View file @ 60b5df2f
......@@ -231,7 +231,7 @@ 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,
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)
{
......
drivers/s390/cio/qdio_thinint.c
View file @ 60b5df2f
......@@ -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)
{
......
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