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| author | Julian Wiedmann <jwi@linux.ibm.com> | 2021-07-14 19:03:51 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-07-27 10:39:18 +0300 |
| commit | bdfd740c1ddac2ec331af9bf79da79d097082882 (patch) | |
| tree | 95e88098cd57467b0c6212e26f9090727ff38a3a /arch/s390/include/asm/qdio.h | |
| parent | 0ae8f2af262a371d9c49c67a0f5e48982c57cdf4 (diff) | |
| download | linux-bdfd740c1ddac2ec331af9bf79da79d097082882.tar.xz | |
s390/qdio: clarify reporting of errors to the drivers
Now that all drivers use qdio_inspect_queue() and qdio's internal
queue tasklets are gone, the driver-specified queue handlers are
only called for async error reporting (eg. for an error condition in
the QEBSM code).
So take a moment to clean up the Output Queue handlers (they are
_always_ called with qdio_error != 0), and clarify which error types
can be reported through what interface. As Benjamin already suggested
a while ago, we should turn these into distinct enums at some point.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/qdio.h')
| -rw-r--r-- | arch/s390/include/asm/qdio.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 334cf9af2019..cb26bf8d3f46 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -291,16 +291,15 @@ struct qdio_ssqd_desc { typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, int, int, unsigned long); -/* qdio errors reported to the upper-layer program */ +/* qdio errors reported through the queue handlers: */ #define QDIO_ERROR_ACTIVATE 0x0001 #define QDIO_ERROR_GET_BUF_STATE 0x0002 #define QDIO_ERROR_SET_BUF_STATE 0x0004 + +/* extra info for completed SBALs: */ #define QDIO_ERROR_SLSB_STATE 0x0100 #define QDIO_ERROR_SLSB_PENDING 0x0200 -#define QDIO_ERROR_FATAL 0x00ff -#define QDIO_ERROR_TEMPORARY 0xff00 - /* for qdio_cleanup */ #define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01 #define QDIO_FLAG_CLEANUP_USING_HALT 0x02 |