diff options
| author |   Julian Wiedmann <jwi@linux.ibm.com> | 2019-07-23 11:55:27 +0200 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2019-10-31 17:20:51 +0100 |
| commit | 94c43bdaa0073c43a0a1b12e65c51070f02a0642 (patch) | |
| tree | b0010a93874ca0bd214727dcb29882b3bd21e36e /drivers/s390/cio/qdio_main.c | |
| parent | s390/qdio: add statistics helper macro (diff) | |
| download | linux-dev-94c43bdaa0073c43a0a1b12e65c51070f02a0642.tar.xz linux-dev-94c43bdaa0073c43a0a1b12e65c51070f02a0642.zip | |
s390/qdio: simplify thinint device registration
On an interrupt, tiqdio_thinint_handler() walks a list of all objects
that might require attention, and checks their DSCI. This list is
awkwardly built from Input Queues, even though the IRQs are per-device
and the queue is then only used to dereference its qdio_irq parent.
To simplify the logic, change the code so that tiq_list contains
qdio_irq entries.
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 '')
| -rw-r--r-- | drivers/s390/cio/qdio_main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 8512255ddc33..d0c85862c258 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -1162,7 +1162,7 @@ int qdio_shutdown(struct ccw_device *cdev, int how) */ qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED); - tiqdio_remove_input_queues(irq_ptr); + tiqdio_remove_device(irq_ptr); qdio_shutdown_queues(cdev); qdio_shutdown_debug_entries(irq_ptr); @@ -1284,6 +1284,7 @@ int qdio_allocate(struct qdio_initialize *init_data) init_data->no_output_qs)) goto out_rel; + INIT_LIST_HEAD(&irq_ptr->entry); init_data->cdev->private->qdio_data = irq_ptr; qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE); return 0; @@ -1428,7 +1429,7 @@ int qdio_activate(struct ccw_device *cdev) } if (is_thinint_irq(irq_ptr)) - tiqdio_add_input_queues(irq_ptr); + tiqdio_add_device(irq_ptr); /* wait for subchannel to become active */ msleep(5); |