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| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2011-01-05 12:47:54 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 12:47:28 +0100 |
| commit | 90adac58d1a4daf3560739ff5b76497d5ece16c4 (patch) | |
| tree | 6304b54c5b8200de91f3c151051a412a3536d0f4 /drivers/s390/cio/qdio.h | |
| parent | 110da31709023de61735f2d8a3e52c20c23bb570 (diff) | |
| download | op-kernel-dev-90adac58d1a4daf3560739ff5b76497d5ece16c4.zip op-kernel-dev-90adac58d1a4daf3560739ff5b76497d5ece16c4.tar.gz | |
[S390] qdio: cleanup SIGA sync
Simplify the SIGA sync code and add unlikely annotations. In polling mode
SBALs may be accessed without interrupt, so call SIGA sync before every scan.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/qdio.h')
| -rw-r--r-- | drivers/s390/cio/qdio.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 1b40a92..7bc643f 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -148,10 +148,9 @@ struct siga_flag { u8 input:1; u8 output:1; u8 sync:1; - u8 no_sync_ti:1; - u8 no_sync_out_ti:1; - u8 no_sync_out_pci:1; - u8:2; + u8 sync_after_ai:1; + u8 sync_out_after_pci:1; + u8:3; } __attribute__ ((packed)); struct chsc_ssqd_area { @@ -390,12 +389,13 @@ static inline int multicast_outbound(struct qdio_q *q) (q->irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED) #define is_qebsm(q) (q->irq_ptr->sch_token != 0) -#define need_siga_sync_thinint(q) (!q->irq_ptr->siga_flag.no_sync_ti) -#define need_siga_sync_out_thinint(q) (!q->irq_ptr->siga_flag.no_sync_out_ti) #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) (q->irq_ptr->siga_flag.sync) -#define siga_syncs_out_pci(q) (q->irq_ptr->siga_flag.no_sync_out_pci) +#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, q = irq_ptr->input_qs[0]; \ |
