diff options
| author |   frank.blaschka@de.ibm.com <frank.blaschka@de.ibm.com> | 2011-08-08 01:33:56 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-08-13 01:10:16 -0700 |
| commit | 9cb7284f3058d272758ebaaa8f6f924cb99792bc (patch) | |
| tree | a800cec83dcb89596108bbc75bfc6521c01c2b76 /drivers | |
| parent | qdio: support asynchronous delivery of storage blocks (diff) | |
| download | linux-dev-9cb7284f3058d272758ebaaa8f6f924cb99792bc.tar.xz linux-dev-9cb7284f3058d272758ebaaa8f6f924cb99792bc.zip | |
qdio: support forced signal adapter indications
This patch ensures that signal adapter commands are issued if they are
indicated to be required.
Signed-off-by: Einar Lueck <elelueck@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/cio/qdio.h | 9 | ||||
| -rw-r--r-- | drivers/s390/cio/qdio_main.c | 5 |
2 files changed, 1 insertions, 13 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 2b21f65a8950..3dd86441da3d 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -87,15 +87,6 @@ enum qdio_irq_states { #define CHSC_FLAG_QDIO_CAPABILITY 0x80 #define CHSC_FLAG_VALIDITY 0x40 -/* qdio adapter-characteristics-1 flag */ -#define AC1_SIGA_INPUT_NEEDED 0x40 /* process input queues */ -#define AC1_SIGA_OUTPUT_NEEDED 0x20 /* process output queues */ -#define AC1_SIGA_SYNC_NEEDED 0x10 /* ask hypervisor to sync */ -#define AC1_AUTOMATIC_SYNC_ON_THININT 0x08 /* set by hypervisor */ -#define AC1_AUTOMATIC_SYNC_ON_OUT_PCI 0x04 /* set by hypervisor */ -#define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */ -#define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */ - /* SIGA flags */ #define QDIO_SIGA_WRITE 0x00 #define QDIO_SIGA_READ 0x01 diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index a7153f2f3aff..9a122280246c 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -1592,12 +1592,9 @@ set: used = atomic_add_return(count, &q->nr_buf_used) - count; BUG_ON(used + count > QDIO_MAX_BUFFERS_PER_Q); - /* no need to signal as long as the adapter had free buffers */ - if (used) - return 0; - if (need_siga_in(q)) return qdio_siga_input(q); + return 0; } |