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.h | |
| parent | 4611281021e9835da825b79ba9b62a31670e0791 (diff) | |
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 'drivers/s390/cio/qdio.h')
| -rw-r--r-- | drivers/s390/cio/qdio.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index a6cbbd8e928c..64cc14e47e35 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -252,9 +252,6 @@ struct qdio_q { /* input or output queue */ int is_input_q; - /* list of thinint input queues */ - struct list_head entry; - /* upper-layer program handler */ qdio_handler_t (*handler); @@ -272,6 +269,7 @@ struct qdio_irq { struct qib qib; u32 *dsci; /* address of device state change indicator */ struct ccw_device *cdev; + struct list_head entry; /* list of thinint devices */ struct dentry *debugfs_dev; struct dentry *debugfs_perf; @@ -373,8 +371,8 @@ extern u64 last_ai_time; void qdio_setup_thinint(struct qdio_irq *irq_ptr); int qdio_establish_thinint(struct qdio_irq *irq_ptr); void qdio_shutdown_thinint(struct qdio_irq *irq_ptr); -void tiqdio_add_input_queues(struct qdio_irq *irq_ptr); -void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr); +void tiqdio_add_device(struct qdio_irq *irq_ptr); +void tiqdio_remove_device(struct qdio_irq *irq_ptr); void tiqdio_inbound_processing(unsigned long q); int tiqdio_allocate_memory(void); void tiqdio_free_memory(void); |