IB/qib: Remove mmap from qib
Since mmap functionality has been moved into rdmavt, its time for qib to
use that.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index 96e34f4..893d00c 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -731,7 +731,7 @@
struct qib_qp_priv *priv = NULL;
unsigned long flags;
- spin_lock_irqsave(&dev->pending_lock, flags);
+ spin_lock_irqsave(&dev->rdi.pending_lock, flags);
if (!list_empty(list)) {
priv = list_entry(list->next, struct qib_qp_priv, iowait);
qp = priv->owner;
@@ -740,7 +740,7 @@
if (!list_empty(list))
mod_timer(&dev->mem_timer, jiffies + 1);
}
- spin_unlock_irqrestore(&dev->pending_lock, flags);
+ spin_unlock_irqrestore(&dev->rdi.pending_lock, flags);
if (qp) {
spin_lock_irqsave(&qp->s_lock, flags);
@@ -955,13 +955,13 @@
unsigned long flags;
spin_lock_irqsave(&qp->s_lock, flags);
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
if (!list_empty(&dev->txreq_free)) {
struct list_head *l = dev->txreq_free.next;
list_del(l);
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
spin_unlock_irqrestore(&qp->s_lock, flags);
tx = list_entry(l, struct qib_verbs_txreq, txreq.list);
} else {
@@ -972,7 +972,7 @@
list_add_tail(&priv->iowait, &dev->txwait);
}
qp->s_flags &= ~QIB_S_BUSY;
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
spin_unlock_irqrestore(&qp->s_lock, flags);
tx = ERR_PTR(-EBUSY);
}
@@ -985,17 +985,17 @@
struct qib_verbs_txreq *tx;
unsigned long flags;
- spin_lock_irqsave(&dev->pending_lock, flags);
+ spin_lock_irqsave(&dev->rdi.pending_lock, flags);
/* assume the list non empty */
if (likely(!list_empty(&dev->txreq_free))) {
struct list_head *l = dev->txreq_free.next;
list_del(l);
- spin_unlock_irqrestore(&dev->pending_lock, flags);
+ spin_unlock_irqrestore(&dev->rdi.pending_lock, flags);
tx = list_entry(l, struct qib_verbs_txreq, txreq.list);
} else {
/* call slow path to get the extra lock */
- spin_unlock_irqrestore(&dev->pending_lock, flags);
+ spin_unlock_irqrestore(&dev->rdi.pending_lock, flags);
tx = __get_txreq(dev, qp);
}
return tx;
@@ -1025,7 +1025,7 @@
kfree(tx->align_buf);
}
- spin_lock_irqsave(&dev->pending_lock, flags);
+ spin_lock_irqsave(&dev->rdi.pending_lock, flags);
/* Put struct back on free list */
list_add(&tx->txreq.list, &dev->txreq_free);
@@ -1037,7 +1037,7 @@
qp = priv->owner;
list_del_init(&priv->iowait);
atomic_inc(&qp->refcount);
- spin_unlock_irqrestore(&dev->pending_lock, flags);
+ spin_unlock_irqrestore(&dev->rdi.pending_lock, flags);
spin_lock_irqsave(&qp->s_lock, flags);
if (qp->s_flags & QIB_S_WAIT_TX) {
@@ -1049,7 +1049,7 @@
if (atomic_dec_and_test(&qp->refcount))
wake_up(&qp->wait);
} else
- spin_unlock_irqrestore(&dev->pending_lock, flags);
+ spin_unlock_irqrestore(&dev->rdi.pending_lock, flags);
}
/*
@@ -1068,7 +1068,7 @@
n = 0;
dev = &ppd->dd->verbs_dev;
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
/* Search wait list for first QP wanting DMA descriptors. */
list_for_each_entry_safe(qpp, nqpp, &dev->dmawait, iowait) {
@@ -1086,7 +1086,7 @@
qps[n++] = qp;
}
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
for (i = 0; i < n; i++) {
qp = qps[i];
@@ -1147,14 +1147,14 @@
spin_lock_irqsave(&qp->s_lock, flags);
if (ib_qib_state_ops[qp->state] & QIB_PROCESS_RECV_OK) {
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
if (list_empty(&priv->iowait)) {
if (list_empty(&dev->memwait))
mod_timer(&dev->mem_timer, jiffies + 1);
qp->s_flags |= QIB_S_WAIT_KMEM;
list_add_tail(&priv->iowait, &dev->memwait);
}
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
qp->s_flags &= ~QIB_S_BUSY;
ret = -EBUSY;
}
@@ -1284,7 +1284,7 @@
*/
spin_lock_irqsave(&qp->s_lock, flags);
if (ib_qib_state_ops[qp->state] & QIB_PROCESS_RECV_OK) {
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
if (list_empty(&priv->iowait)) {
dev->n_piowait++;
qp->s_flags |= QIB_S_WAIT_PIO;
@@ -1292,7 +1292,7 @@
dd = dd_from_dev(dev);
dd->f_wantpiobuf_intr(dd, 1);
}
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
qp->s_flags &= ~QIB_S_BUSY;
ret = -EBUSY;
}
@@ -1556,7 +1556,7 @@
* could end up with QPs on the wait list with the interrupt
* disabled.
*/
- spin_lock_irqsave(&dev->pending_lock, flags);
+ spin_lock_irqsave(&dev->rdi.pending_lock, flags);
while (!list_empty(list)) {
if (n == ARRAY_SIZE(qps))
goto full;
@@ -1568,7 +1568,7 @@
}
dd->f_wantpiobuf_intr(dd, 0);
full:
- spin_unlock_irqrestore(&dev->pending_lock, flags);
+ spin_unlock_irqrestore(&dev->rdi.pending_lock, flags);
for (i = 0; i < n; i++) {
qp = qps[i];
@@ -1992,10 +1992,6 @@
qib_init_qpn_table(dd, &dev->qpn_table);
- INIT_LIST_HEAD(&dev->pending_mmaps);
- spin_lock_init(&dev->pending_lock);
- dev->mmap_offset = PAGE_SIZE;
- spin_lock_init(&dev->mmap_offset_lock);
INIT_LIST_HEAD(&dev->piowait);
INIT_LIST_HEAD(&dev->dmawait);
INIT_LIST_HEAD(&dev->txwait);
@@ -2115,7 +2111,7 @@
ibdev->attach_mcast = qib_multicast_attach;
ibdev->detach_mcast = qib_multicast_detach;
ibdev->process_mad = qib_process_mad;
- ibdev->mmap = qib_mmap;
+ ibdev->mmap = NULL;
ibdev->dma_ops = NULL;
ibdev->get_port_immutable = qib_port_immutable;