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s390: free skbs in finite amount of time in qeth

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Free sent skbs in some finite amount of time. Affected are
asynchronous queue of Hipersockets devices and the output
queues of all eth-devices respectively.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Ursula Braun 2007-05-02 15:18:07 +02:00 committed by Jeff Garzik
parent a4c48a2691
commit 1f8bdae9ef
4 changed files with 39 additions and 17 deletions
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37
drivers/s390/cio/qdio.c
View file

@ -996,18 +996,25 @@ __qdio_outbound_processing(struct qdio_q *q)
if (qdio_has_outbound_q_moved(q))
qdio_kick_outbound_handler(q);
if (q->is_iqdio_q) {
if (q->queue_type == QDIO_ZFCP_QFMT) {
if ((!q->hydra_gives_outbound_pcis) &&
(!qdio_is_outbound_q_done(q)))
qdio_mark_q(q);
}
else if (((!q->is_iqdio_q) && (!q->is_pci_out)) ||
(q->queue_type == QDIO_IQDIO_QFMT_ASYNCH)) {
/*
* for asynchronous queues, we better check, if the sent
* buffer is already switched from PRIMED to EMPTY.
* make sure buffer switch from PRIMED to EMPTY is noticed
* and outbound_handler is called
*/
if ((q->queue_type == QDIO_IQDIO_QFMT_ASYNCH) &&
!qdio_is_outbound_q_done(q))
qdio_mark_q(q);
} else if (!q->hydra_gives_outbound_pcis)
if (!qdio_is_outbound_q_done(q))
qdio_mark_q(q);
if (qdio_is_outbound_q_done(q)) {
del_timer(&q->timer);
} else {
if (!timer_pending(&q->timer))
mod_timer(&q->timer, jiffies +
QDIO_FORCE_CHECK_TIMEOUT);
}
}
qdio_release_q(q);
}
@ -1826,6 +1833,7 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev,
q->queue_type = QDIO_IQDIO_QFMT_ASYNCH;
q->int_parm=int_parm;
q->is_input_q=0;
q->is_pci_out = 0;
q->schid = irq_ptr->schid;
q->cdev = cdev;
q->irq_ptr = irq_ptr;
@ -1838,6 +1846,10 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev,
q->tasklet.data=(unsigned long)q;
q->tasklet.func=(void(*)(unsigned long))
&qdio_outbound_processing;
q->timer.function=(void(*)(unsigned long))
&qdio_outbound_processing;
q->timer.data = (long)q;
init_timer(&q->timer);
atomic_set(&q->busy_siga_counter,0);
q->timing.busy_start=0;
@ -2635,6 +2647,7 @@ qdio_shutdown(struct ccw_device *cdev, int how)
for (i=0;i<irq_ptr->no_output_qs;i++) {
tasklet_kill(&irq_ptr->output_qs[i]->tasklet);
del_timer(&irq_ptr->output_qs[i]->timer);
wait_event_interruptible_timeout(cdev->private->wait_q,
!atomic_read(&irq_ptr->
output_qs[i]->
@ -3458,6 +3471,10 @@ do_qdio_handle_outbound(struct qdio_q *q, unsigned int callflags,
qdio_perf_stat_inc(&perf_stats.outbound_cnt);
return;
}
if (callflags & QDIO_FLAG_PCI_OUT)
q->is_pci_out = 1;
else
q->is_pci_out = 0;
if (q->is_iqdio_q) {
/* one siga for every sbal */
while (count--)

4
drivers/s390/cio/qdio.h
View file

@ -60,6 +60,7 @@
#define QDIO_ACTIVATE_TIMEOUT ((5*HZ)>>10)
#define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ)
#define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ)
#define QDIO_FORCE_CHECK_TIMEOUT (10*HZ)
enum qdio_irq_states {
QDIO_IRQ_STATE_INACTIVE,
@ -511,8 +512,8 @@ struct qdio_q {
void *irq_ptr;
#ifdef QDIO_USE_TIMERS_FOR_POLLING
struct timer_list timer;
#ifdef QDIO_USE_TIMERS_FOR_POLLING
atomic_t timer_already_set;
spinlock_t timer_lock;
#else /* QDIO_USE_TIMERS_FOR_POLLING */
@ -558,6 +559,7 @@ struct qdio_q {
} timing;
atomic_t busy_siga_counter;
unsigned int queue_type;
unsigned int is_pci_out;
/* leave this member at the end. won't be cleared in qdio_fill_qs */
struct slib *slib; /* a page is allocated under this pointer,

14
drivers/s390/net/qeth_main.c
View file

@ -2816,6 +2816,7 @@ qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
struct qeth_qdio_out_buffer *buf;
int rc;
int i;
unsigned int qdio_flags;
QETH_DBF_TEXT(trace, 6, "flushbuf");
@ -2859,13 +2860,13 @@ qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
queue->card->perf_stats.outbound_do_qdio_start_time =
qeth_get_micros();
}
qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
if (under_int)
rc = do_QDIO(CARD_DDEV(queue->card),
QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
queue->queue_no, index, count, NULL);
else
rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
queue->queue_no, index, count, NULL);
qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
if (atomic_read(&queue->set_pci_flags_count))
qdio_flags |= QDIO_FLAG_PCI_OUT;
rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
queue->queue_no, index, count, NULL);
if (queue->card->options.performance_stats)
queue->card->perf_stats.outbound_do_qdio_time +=
qeth_get_micros() -
@ -8498,6 +8499,7 @@ __qeth_reboot_event_card(struct device *dev, void *data)
card = (struct qeth_card *) dev->driver_data;
qeth_clear_ip_list(card, 0, 0);
qeth_qdio_clear_card(card, 0);
qeth_clear_qdio_buffers(card);
return 0;
}

1
include/asm-s390/qdio.h
View file

@ -120,6 +120,7 @@ extern unsigned long qdio_get_status(int irq);
#define QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT 0x08 /* no effect on
adapter interrupts */
#define QDIO_FLAG_DONT_SIGA 0x10
#define QDIO_FLAG_PCI_OUT 0x20
extern int do_QDIO(struct ccw_device*, unsigned int flags,
unsigned int queue_number,