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[S390] qdio: report SIGA errors directly

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Errors from SIGA instructions are stored in the per queue qdio_error
and reported back when the queue handler is called. That opens a race
when multiple error conditions occur simultanously.

Report SIGA errors immediately in the return value of do_QDIO so the
upper layer can react and SIGA errors no longer interfere with other
errors.

Move the SIGA error handling in qeth from the outbound handler to
qeth_flush_buffers.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
This commit is contained in:
Jan Glauber
2009-03-26 15:24:31 +01:00
committed by Martin Schwidefsky
parent 9e890ad880
commit d303b6fd85
5 changed files with 48 additions and 83 deletions
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arch/s390/include/asm/qdio.h
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@@ -314,6 +314,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
int, int, unsigned long);
/* qdio errors reported to the upper-layer program */
#define QDIO_ERROR_SIGA_TARGET 0x02
#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10
#define QDIO_ERROR_SIGA_BUSY 0x20
#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40