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| author | Julian Wiedmann <jwi@linux.ibm.com> | 2021-03-23 23:43:02 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-08-18 10:01:28 +0200 |
| commit | e2af48df5cc6bd6327697af44cc3f0d5e88611a2 (patch) | |
| tree | 34ad5d1bfb5c9bde7cfc18df42bd06218d7ccef3 /drivers/s390/cio/qdio.h | |
| parent | s390/qdio: use absolute data address in ESTABLISH ccw (diff) | |
| download | linux-e2af48df5cc6bd6327697af44cc3f0d5e88611a2.tar.xz linux-e2af48df5cc6bd6327697af44cc3f0d5e88611a2.zip | |
s390/qdio: remove unused sync-after-IRQ infrastructure
The queue processing is fully decoupled from any preceding interrupt,
so we're no longer making any use of the sync-after-IRQ HW capabilities.
And as SIGA-sync is a legacy feature, there's also not much point in
re-designing the driver & qdio-layer code just so that we can
potentially avoid a few syncs. So just remove all the leftover code.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/cio/qdio.h')
| -rw-r--r-- | drivers/s390/cio/qdio.h | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 478f84cd9e45..835f23b4376e 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -130,9 +130,7 @@ struct siga_flag { u8 input:1; u8 output:1; u8 sync:1; - u8 sync_after_ai:1; - u8 sync_out_after_pci:1; - u8:3; + u8:5; } __attribute__ ((packed)); struct qdio_dev_perf_stat { @@ -317,10 +315,6 @@ static inline void qdio_deliver_irq(struct qdio_irq *irq) #define need_siga_in(q) (q->irq_ptr->siga_flag.input) #define need_siga_out(q) (q->irq_ptr->siga_flag.output) #define need_siga_sync(q) (unlikely(q->irq_ptr->siga_flag.sync)) -#define need_siga_sync_after_ai(q) \ - (unlikely(q->irq_ptr->siga_flag.sync_after_ai)) -#define need_siga_sync_out_after_pci(q) \ - (unlikely(q->irq_ptr->siga_flag.sync_out_after_pci)) #define for_each_input_queue(irq_ptr, q, i) \ for (i = 0; i < irq_ptr->nr_input_qs && \ |