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| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2012-05-09 16:27:34 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-16 14:42:36 +0200 |
| commit | 1549d13f4c5f0ca77b66bd725287d0b3f877eb6b (patch) | |
| tree | 5ba439915cc4cceb8930a18e9adf2aba34adc82f /drivers/s390/net | |
| parent | 050276ab8ce9f30c1d2d74c42a349ed54701905f (diff) | |
| download | kernel-common-1549d13f4c5f0ca77b66bd725287d0b3f877eb6b.tar.gz kernel-common-1549d13f4c5f0ca77b66bd725287d0b3f877eb6b.tar.bz2 kernel-common-1549d13f4c5f0ca77b66bd725287d0b3f877eb6b.zip | |
s390/qdio: Cleanup error handling to drivers
Various improvements of qdio error reporting to the
upper-layer drivers (qeth, zfcp):
- Split QDIO_ERROR_ACTIVATE_CHECK_CONDITION into:
QDIO_ERROR_ACTIVATE: qdio termination interrupt
QDIO_ERROR_GET_BUF_STATE: QIOASSIST eqbs error
QDIO_ERROR_SET_BUF_STATE: QIOASSIST sqbs error
Add QDIO_ERROR_FATAL / QDIO_ERROR_TEMPORARY masks
to ease recovery decision in upper-layer drivers.
- Don't (ab-)use qdio handler errors as return codes
for do_QDIO but use standard error codes:
-ENOBUFS: temporary target CC=2 condition
-EBUSY: unresolved SIGA-W CC=2 busy condition
-EIO: I/O error (CC=1, CC=3)
- Remove unneeded memory clobber from SIGA-R
- Remove EX_TABLE entry on SIGA-W, we want to see these errors
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/net')
| -rw-r--r-- | drivers/s390/net/qeth_core_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 8334dadc681d..c146877e8b7b 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3339,7 +3339,7 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, if (rc) { queue->card->stats.tx_errors += count; /* ignore temporary SIGA errors without busy condition */ - if (rc == QDIO_ERROR_SIGA_TARGET) + if (rc == -ENOBUFS) return; QETH_CARD_TEXT(queue->card, 2, "flushbuf"); QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); @@ -3533,7 +3533,7 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev, int i; QETH_CARD_TEXT(card, 6, "qdouhdl"); - if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { + if (qdio_error & QDIO_ERROR_FATAL) { QETH_CARD_TEXT(card, 2, "achkcond"); netif_stop_queue(card->dev); qeth_schedule_recovery(card); |