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path: root/drivers/infiniband/core/uverbs_main.c
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Diffstat (limited to 'drivers/infiniband/core/uverbs_main.c')
-rw-r--r--drivers/infiniband/core/uverbs_main.c98
1 files changed, 62 insertions, 36 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 09caf5b1ef36..ce5bdb7af306 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -120,7 +120,7 @@ static int ib_dealloc_ucontext(struct ib_ucontext *context)
idr_remove(&ib_uverbs_qp_idr, uobj->id);
ib_destroy_qp(qp);
list_del(&uobj->list);
- kfree(uobj);
+ kfree(container_of(uobj, struct ib_uevent_object, uobject));
}
list_for_each_entry_safe(uobj, tmp, &context->cq_list, list) {
@@ -128,7 +128,7 @@ static int ib_dealloc_ucontext(struct ib_ucontext *context)
idr_remove(&ib_uverbs_cq_idr, uobj->id);
ib_destroy_cq(cq);
list_del(&uobj->list);
- kfree(uobj);
+ kfree(container_of(uobj, struct ib_ucq_object, uobject));
}
list_for_each_entry_safe(uobj, tmp, &context->srq_list, list) {
@@ -136,7 +136,7 @@ static int ib_dealloc_ucontext(struct ib_ucontext *context)
idr_remove(&ib_uverbs_srq_idr, uobj->id);
ib_destroy_srq(srq);
list_del(&uobj->list);
- kfree(uobj);
+ kfree(container_of(uobj, struct ib_uevent_object, uobject));
}
/* XXX Free MWs */
@@ -182,7 +182,7 @@ static ssize_t ib_uverbs_event_read(struct file *filp, char __user *buf,
size_t count, loff_t *pos)
{
struct ib_uverbs_event_file *file = filp->private_data;
- void *event;
+ struct ib_uverbs_event *event;
int eventsz;
int ret = 0;
@@ -207,21 +207,23 @@ static ssize_t ib_uverbs_event_read(struct file *filp, char __user *buf,
return -ENODEV;
}
- if (file->is_async) {
- event = list_entry(file->event_list.next,
- struct ib_uverbs_async_event, list);
+ event = list_entry(file->event_list.next, struct ib_uverbs_event, list);
+
+ if (file->is_async)
eventsz = sizeof (struct ib_uverbs_async_event_desc);
- } else {
- event = list_entry(file->event_list.next,
- struct ib_uverbs_comp_event, list);
+ else
eventsz = sizeof (struct ib_uverbs_comp_event_desc);
- }
if (eventsz > count) {
ret = -EINVAL;
event = NULL;
- } else
+ } else {
list_del(file->event_list.next);
+ if (event->counter) {
+ ++(*event->counter);
+ list_del(&event->obj_list);
+ }
+ }
spin_unlock_irq(&file->lock);
@@ -257,16 +259,13 @@ static unsigned int ib_uverbs_event_poll(struct file *filp,
static void ib_uverbs_event_release(struct ib_uverbs_event_file *file)
{
- struct list_head *entry, *tmp;
+ struct ib_uverbs_event *entry, *tmp;
spin_lock_irq(&file->lock);
if (file->fd != -1) {
file->fd = -1;
- list_for_each_safe(entry, tmp, &file->event_list)
- if (file->is_async)
- kfree(list_entry(entry, struct ib_uverbs_async_event, list));
- else
- kfree(list_entry(entry, struct ib_uverbs_comp_event, list));
+ list_for_each_entry_safe(entry, tmp, &file->event_list, list)
+ kfree(entry);
}
spin_unlock_irq(&file->lock);
}
@@ -304,18 +303,23 @@ static struct file_operations uverbs_event_fops = {
void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context)
{
- struct ib_uverbs_file *file = cq_context;
- struct ib_uverbs_comp_event *entry;
- unsigned long flags;
+ struct ib_uverbs_file *file = cq_context;
+ struct ib_ucq_object *uobj;
+ struct ib_uverbs_event *entry;
+ unsigned long flags;
entry = kmalloc(sizeof *entry, GFP_ATOMIC);
if (!entry)
return;
- entry->desc.cq_handle = cq->uobject->user_handle;
+ uobj = container_of(cq->uobject, struct ib_ucq_object, uobject);
+
+ entry->desc.comp.cq_handle = cq->uobject->user_handle;
+ entry->counter = &uobj->comp_events_reported;
spin_lock_irqsave(&file->comp_file[0].lock, flags);
list_add_tail(&entry->list, &file->comp_file[0].event_list);
+ list_add_tail(&entry->obj_list, &uobj->comp_list);
spin_unlock_irqrestore(&file->comp_file[0].lock, flags);
wake_up_interruptible(&file->comp_file[0].poll_wait);
@@ -323,20 +327,25 @@ void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context)
}
static void ib_uverbs_async_handler(struct ib_uverbs_file *file,
- __u64 element, __u64 event)
+ __u64 element, __u64 event,
+ struct list_head *obj_list,
+ u32 *counter)
{
- struct ib_uverbs_async_event *entry;
+ struct ib_uverbs_event *entry;
unsigned long flags;
entry = kmalloc(sizeof *entry, GFP_ATOMIC);
if (!entry)
return;
- entry->desc.element = element;
- entry->desc.event_type = event;
+ entry->desc.async.element = element;
+ entry->desc.async.event_type = event;
+ entry->counter = counter;
spin_lock_irqsave(&file->async_file.lock, flags);
list_add_tail(&entry->list, &file->async_file.event_list);
+ if (obj_list)
+ list_add_tail(&entry->obj_list, obj_list);
spin_unlock_irqrestore(&file->async_file.lock, flags);
wake_up_interruptible(&file->async_file.poll_wait);
@@ -345,23 +354,39 @@ static void ib_uverbs_async_handler(struct ib_uverbs_file *file,
void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr)
{
- ib_uverbs_async_handler(context_ptr,
- event->element.cq->uobject->user_handle,
- event->event);
+ struct ib_ucq_object *uobj;
+
+ uobj = container_of(event->element.cq->uobject,
+ struct ib_ucq_object, uobject);
+
+ ib_uverbs_async_handler(context_ptr, uobj->uobject.user_handle,
+ event->event, &uobj->async_list,
+ &uobj->async_events_reported);
+
}
void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr)
{
- ib_uverbs_async_handler(context_ptr,
- event->element.qp->uobject->user_handle,
- event->event);
+ struct ib_uevent_object *uobj;
+
+ uobj = container_of(event->element.qp->uobject,
+ struct ib_uevent_object, uobject);
+
+ ib_uverbs_async_handler(context_ptr, uobj->uobject.user_handle,
+ event->event, &uobj->event_list,
+ &uobj->events_reported);
}
void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr)
{
- ib_uverbs_async_handler(context_ptr,
- event->element.srq->uobject->user_handle,
- event->event);
+ struct ib_uevent_object *uobj;
+
+ uobj = container_of(event->element.srq->uobject,
+ struct ib_uevent_object, uobject);
+
+ ib_uverbs_async_handler(context_ptr, uobj->uobject.user_handle,
+ event->event, &uobj->event_list,
+ &uobj->events_reported);
}
static void ib_uverbs_event_handler(struct ib_event_handler *handler,
@@ -370,7 +395,8 @@ static void ib_uverbs_event_handler(struct ib_event_handler *handler,
struct ib_uverbs_file *file =
container_of(handler, struct ib_uverbs_file, event_handler);
- ib_uverbs_async_handler(file, event->element.port_num, event->event);
+ ib_uverbs_async_handler(file, event->element.port_num, event->event,
+ NULL, NULL);
}
static int ib_uverbs_event_init(struct ib_uverbs_event_file *file,