diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2020-04-03 00:48:00 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-04-28 14:49:48 +0300 |
| commit | d188cac39753c8419d2b168436a632711896ea4e (patch) | |
| tree | 5b29c13e6f12be9a4af1ebdfa752092c78075805 /drivers/s390/cio/qdio.h | |
| parent | 2a7cf35c4056facd35c952e8000519034376eef7 (diff) | |
| download | linux-d188cac39753c8419d2b168436a632711896ea4e.tar.xz | |
s390/qdio: keep track of allocated queue count
Knowing how many queues we initially allocated allows us to
1) sanity-check a subsequent qdio_establish() request, and
2) walk the queue arrays without further checks. Apply this while
cleanly splitting qdio_free_queues() into two separate helpers.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@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 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index effab60c1b98..66191e864b0b 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -292,6 +292,8 @@ struct qdio_irq { struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ]; struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ]; + unsigned int max_input_qs; + unsigned int max_output_qs; void (*irq_poll)(struct ccw_device *cdev, unsigned long data); unsigned long poll_state; @@ -389,6 +391,7 @@ int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data); void qdio_shutdown_irq(struct qdio_irq *irq); void qdio_print_subchannel_info(struct qdio_irq *irq_ptr); void qdio_free_queues(struct qdio_irq *irq_ptr); +void qdio_free_async_data(struct qdio_irq *irq_ptr); int qdio_setup_init(void); void qdio_setup_exit(void); int qdio_enable_async_operation(struct qdio_output_q *q); |