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path: root/drivers/infiniband/hw/ipath/ipath_cq.c
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Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_cq.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_cq.c68
1 files changed, 34 insertions, 34 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c
index ea78e6dddc9..3e9241badba 100644
--- a/drivers/infiniband/hw/ipath/ipath_cq.c
+++ b/drivers/infiniband/hw/ipath/ipath_cq.c
@@ -204,7 +204,7 @@ static void send_complete(unsigned long data)
*
* Called by ib_create_cq() in the generic verbs code.
*/
-struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
+struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata)
{
@@ -243,33 +243,21 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
* See ipath_mmap() for details.
*/
if (udata && udata->outlen >= sizeof(__u64)) {
- struct ipath_mmap_info *ip;
- __u64 offset = (__u64) wc;
int err;
+ u32 s = sizeof *wc + sizeof(struct ib_wc) * entries;
- err = ib_copy_to_udata(udata, &offset, sizeof(offset));
- if (err) {
- ret = ERR_PTR(err);
+ cq->ip = ipath_create_mmap_info(dev, s, context, wc);
+ if (!cq->ip) {
+ ret = ERR_PTR(-ENOMEM);
goto bail_wc;
}
- /* Allocate info for ipath_mmap(). */
- ip = kmalloc(sizeof(*ip), GFP_KERNEL);
- if (!ip) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_wc;
+ err = ib_copy_to_udata(udata, &cq->ip->offset,
+ sizeof(cq->ip->offset));
+ if (err) {
+ ret = ERR_PTR(err);
+ goto bail_ip;
}
- cq->ip = ip;
- ip->context = context;
- ip->obj = wc;
- kref_init(&ip->ref);
- ip->mmap_cnt = 0;
- ip->size = PAGE_ALIGN(sizeof(*wc) +
- sizeof(struct ib_wc) * entries);
- spin_lock_irq(&dev->pending_lock);
- ip->next = dev->pending_mmaps;
- dev->pending_mmaps = ip;
- spin_unlock_irq(&dev->pending_lock);
} else
cq->ip = NULL;
@@ -277,12 +265,18 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
if (dev->n_cqs_allocated == ib_ipath_max_cqs) {
spin_unlock(&dev->n_cqs_lock);
ret = ERR_PTR(-ENOMEM);
- goto bail_wc;
+ goto bail_ip;
}
dev->n_cqs_allocated++;
spin_unlock(&dev->n_cqs_lock);
+ if (cq->ip) {
+ spin_lock_irq(&dev->pending_lock);
+ list_add(&cq->ip->pending_mmaps, &dev->pending_mmaps);
+ spin_unlock_irq(&dev->pending_lock);
+ }
+
/*
* ib_create_cq() will initialize cq->ibcq except for cq->ibcq.cqe.
* The number of entries should be >= the number requested or return
@@ -301,12 +295,12 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
goto done;
+bail_ip:
+ kfree(cq->ip);
bail_wc:
vfree(wc);
-
bail_cq:
kfree(cq);
-
done:
return ret;
}
@@ -340,17 +334,18 @@ int ipath_destroy_cq(struct ib_cq *ibcq)
/**
* ipath_req_notify_cq - change the notification type for a completion queue
* @ibcq: the completion queue
- * @notify: the type of notification to request
+ * @notify_flags: the type of notification to request
*
* Returns 0 for success.
*
* This may be called from interrupt context. Also called by
* ib_req_notify_cq() in the generic verbs code.
*/
-int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
+int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags)
{
struct ipath_cq *cq = to_icq(ibcq);
unsigned long flags;
+ int ret = 0;
spin_lock_irqsave(&cq->lock, flags);
/*
@@ -358,9 +353,15 @@ int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
* any other transitions (see C11-31 and C11-32 in ch. 11.4.2.2).
*/
if (cq->notify != IB_CQ_NEXT_COMP)
- cq->notify = notify;
+ cq->notify = notify_flags & IB_CQ_SOLICITED_MASK;
+
+ if ((notify_flags & IB_CQ_REPORT_MISSED_EVENTS) &&
+ cq->queue->head != cq->queue->tail)
+ ret = 1;
+
spin_unlock_irqrestore(&cq->lock, flags);
- return 0;
+
+ return ret;
}
/**
@@ -443,13 +444,12 @@ int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata)
if (cq->ip) {
struct ipath_ibdev *dev = to_idev(ibcq->device);
struct ipath_mmap_info *ip = cq->ip;
+ u32 s = sizeof *wc + sizeof(struct ib_wc) * cqe;
- ip->obj = wc;
- ip->size = PAGE_ALIGN(sizeof(*wc) +
- sizeof(struct ib_wc) * cqe);
+ ipath_update_mmap_info(dev, ip, s, wc);
spin_lock_irq(&dev->pending_lock);
- ip->next = dev->pending_mmaps;
- dev->pending_mmaps = ip;
+ if (list_empty(&ip->pending_mmaps))
+ list_add(&ip->pending_mmaps, &dev->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
}