diff options
-rw-r--r-- | arch/s390/include/asm/qdio.h | 10 | ||||
-rw-r--r-- | drivers/s390/cio/qdio.h | 9 | ||||
-rw-r--r-- | drivers/s390/cio/qdio_main.c | 5 |
3 files changed, 11 insertions, 13 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 3881e9499e17..21993623da9a 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h | |||
@@ -279,6 +279,16 @@ struct qdio_outbuf_state { | |||
279 | 279 | ||
280 | #define CHSC_AC1_INITIATE_INPUTQ 0x80 | 280 | #define CHSC_AC1_INITIATE_INPUTQ 0x80 |
281 | 281 | ||
282 | |||
283 | /* qdio adapter-characteristics-1 flag */ | ||
284 | #define AC1_SIGA_INPUT_NEEDED 0x40 /* process input queues */ | ||
285 | #define AC1_SIGA_OUTPUT_NEEDED 0x20 /* process output queues */ | ||
286 | #define AC1_SIGA_SYNC_NEEDED 0x10 /* ask hypervisor to sync */ | ||
287 | #define AC1_AUTOMATIC_SYNC_ON_THININT 0x08 /* set by hypervisor */ | ||
288 | #define AC1_AUTOMATIC_SYNC_ON_OUT_PCI 0x04 /* set by hypervisor */ | ||
289 | #define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */ | ||
290 | #define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */ | ||
291 | |||
282 | #define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 | 292 | #define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 |
283 | #define CHSC_AC2_DATA_DIV_ENABLED 0x0002 | 293 | #define CHSC_AC2_DATA_DIV_ENABLED 0x0002 |
284 | 294 | ||
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 { | |||
87 | #define CHSC_FLAG_QDIO_CAPABILITY 0x80 | 87 | #define CHSC_FLAG_QDIO_CAPABILITY 0x80 |
88 | #define CHSC_FLAG_VALIDITY 0x40 | 88 | #define CHSC_FLAG_VALIDITY 0x40 |
89 | 89 | ||
90 | /* qdio adapter-characteristics-1 flag */ | ||
91 | #define AC1_SIGA_INPUT_NEEDED 0x40 /* process input queues */ | ||
92 | #define AC1_SIGA_OUTPUT_NEEDED 0x20 /* process output queues */ | ||
93 | #define AC1_SIGA_SYNC_NEEDED 0x10 /* ask hypervisor to sync */ | ||
94 | #define AC1_AUTOMATIC_SYNC_ON_THININT 0x08 /* set by hypervisor */ | ||
95 | #define AC1_AUTOMATIC_SYNC_ON_OUT_PCI 0x04 /* set by hypervisor */ | ||
96 | #define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */ | ||
97 | #define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */ | ||
98 | |||
99 | /* SIGA flags */ | 90 | /* SIGA flags */ |
100 | #define QDIO_SIGA_WRITE 0x00 | 91 | #define QDIO_SIGA_WRITE 0x00 |
101 | #define QDIO_SIGA_READ 0x01 | 92 | #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: | |||
1592 | used = atomic_add_return(count, &q->nr_buf_used) - count; | 1592 | used = atomic_add_return(count, &q->nr_buf_used) - count; |
1593 | BUG_ON(used + count > QDIO_MAX_BUFFERS_PER_Q); | 1593 | BUG_ON(used + count > QDIO_MAX_BUFFERS_PER_Q); |
1594 | 1594 | ||
1595 | /* no need to signal as long as the adapter had free buffers */ | ||
1596 | if (used) | ||
1597 | return 0; | ||
1598 | |||
1599 | if (need_siga_in(q)) | 1595 | if (need_siga_in(q)) |
1600 | return qdio_siga_input(q); | 1596 | return qdio_siga_input(q); |
1597 | |||
1601 | return 0; | 1598 | return 0; |
1602 | } | 1599 | } |
1603 | 1600 | ||