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[S390] qdio: new qdio driver.

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List of major changes:
- split qdio driver into several files
- seperation of thin interrupt code
- improved handling for multiple thin interrupt devices
- inbound and outbound processing now always runs in tasklet context
- significant less tasklet schedules per interrupt needed
- merged qebsm with non-qebsm handling
- cleanup qdio interface and added kerneldoc
- coding style

Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com>
Reviewed-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Jan Glauber
2008-07-17 17:16:48 +02:00
committed by Heiko Carstens
parent dae39843f4
commit 779e6e1c72
20 changed files with 3885 additions and 4954 deletions
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26
drivers/s390/net/qeth_l2_main.c
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@@ -726,8 +726,7 @@ tx_drop:
}
static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev,
unsigned int status, unsigned int qdio_err,
unsigned int siga_err, unsigned int queue,
unsigned int qdio_err, unsigned int queue,
int first_element, int count, unsigned long card_ptr)
{
struct net_device *net_dev;
@@ -742,23 +741,20 @@ static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev,
card->perf_stats.inbound_cnt++;
card->perf_stats.inbound_start_time = qeth_get_micros();
}
if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION) {
QETH_DBF_TEXT(TRACE, 1, "qdinchk");
QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element,
count);
QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", queue, status);
qeth_schedule_recovery(card);
return;
}
if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
QETH_DBF_TEXT(TRACE, 1, "qdinchk");
QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element,
count);
QETH_DBF_TEXT_(TRACE, 1, "%04X", queue);
qeth_schedule_recovery(card);
return;
}
for (i = first_element; i < (first_element + count); ++i) {
index = i % QDIO_MAX_BUFFERS_PER_Q;
buffer = &card->qdio.in_q->bufs[index];
if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
qeth_check_qdio_errors(buffer->buffer,
qdio_err, siga_err, "qinerr")))
if (!(qdio_err &&
qeth_check_qdio_errors(buffer->buffer, qdio_err, "qinerr")))
qeth_l2_process_inbound_buffer(card, buffer, index);
/* clear buffer and give back to hardware */
qeth_put_buffer_pool_entry(card, buffer->pool_entry);