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| author | Julian Wiedmann <jwi@linux.ibm.com> | 2020-02-19 11:15:30 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-09-14 10:30:07 +0200 |
| commit | 4d4a3caaf36246520d61c17a9fd86ce3893f6595 (patch) | |
| tree | bc2ba2722f9c6a12c2264bbe4504abd9298cf5a9 /arch/s390/include/asm | |
| parent | 309f98dbc66cb183a84781e2b19595f044a2d6e4 (diff) | |
| download | linux-4d4a3caaf36246520d61c17a9fd86ce3893f6595.tar.bz2 | |
s390/qdio: clean up QDR setup
__qdio_allocate_fill_qdr() is meant to set up one specific queue
descriptor in the QDR. But for this simple task, it gets passed a bunch
of global structs and offsets - and then navigates through the structs
to find its actual operands.
Clean up all the complicated pointer chasing & index calculation, and
just pass a descriptor and its associated queue struct.
While at it also add some virt_to_phys() translations, to clarify that
addresses in the QDR are meant to be absolute.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/qdio.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index e69dbf438f99..60012fc11bac 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -26,9 +26,9 @@ /** * struct qdesfmt0 - queue descriptor, format 0 - * @sliba: storage list information block address - * @sla: storage list address - * @slsba: storage list state block address + * @sliba: absolute address of storage list information block + * @sla: absolute address of storage list + * @slsba: absolute address of storage list state block * @akey: access key for SLIB * @bkey: access key for SL * @ckey: access key for SBALs @@ -56,7 +56,7 @@ struct qdesfmt0 { * @oqdcnt: output queue descriptor count * @iqdsz: input queue descriptor size * @oqdsz: output queue descriptor size - * @qiba: queue information block address + * @qiba: absolute address of queue information block * @qkey: queue information block key * @qdf0: queue descriptions */ |