[S390] qdio: new qdio driver.
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>
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 06deaee..22f64aa 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -2939,8 +2939,7 @@
}
static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev,
- unsigned int status, unsigned int qdio_err,
- unsigned int siga_err, unsigned int queue, int first_element,
+ unsigned int qdio_err, unsigned int queue, int first_element,
int count, unsigned long card_ptr)
{
struct net_device *net_dev;
@@ -2955,23 +2954,21 @@
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) &&
+ if (!(qdio_err &&
qeth_check_qdio_errors(buffer->buffer,
- qdio_err, siga_err, "qinerr")))
+ qdio_err, "qinerr")))
qeth_l3_process_inbound_buffer(card, buffer, index);
/* clear buffer and give back to hardware */
qeth_put_buffer_pool_entry(card, buffer->pool_entry);