ib_qib-y := qib_cq.o qib_diag.o qib_driver.o qib_eeprom.o \
qib_file_ops.o qib_fs.o qib_init.o qib_intr.o \
- qib_mad.o qib_mmap.o qib_pcie.o qib_pio_copy.o \
+ qib_mad.o qib_pcie.o qib_pio_copy.o \
qib_qp.o qib_qsfp.o qib_rc.o qib_ruc.o qib_sdma.o qib_srq.o \
qib_sysfs.o qib_twsi.o qib_tx.o qib_uc.o qib_ud.o \
qib_user_pages.o qib_user_sdma.o qib_verbs_mcast.o qib_iba7220.o \
if (udata && udata->outlen >= sizeof(__u64)) {
int err;
- cq->ip = qib_create_mmap_info(dev, sz, context, wc);
+ cq->ip = rvt_create_mmap_info(&dev->rdi, sz, context, wc);
if (!cq->ip) {
ret = ERR_PTR(-ENOMEM);
goto bail_wc;
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);
+ spin_lock_irq(&dev->rdi.pending_lock);
+ list_add(&cq->ip->pending_mmaps, &dev->rdi.pending_mmaps);
+ spin_unlock_irq(&dev->rdi.pending_lock);
}
/*
dev->n_cqs_allocated--;
spin_unlock(&dev->n_cqs_lock);
if (cq->ip)
- kref_put(&cq->ip->ref, qib_release_mmap_info);
+ kref_put(&cq->ip->ref, rvt_release_mmap_info);
else
vfree(cq->queue);
kfree(cq);
struct qib_ibdev *dev = to_idev(ibcq->device);
struct rvt_mmap_info *ip = cq->ip;
- qib_update_mmap_info(dev, ip, sz, wc);
+ rvt_update_mmap_info(&dev->rdi, ip, sz, wc);
/*
* Return the offset to mmap.
goto bail;
}
- spin_lock_irq(&dev->pending_lock);
+ spin_lock_irq(&dev->rdi.pending_lock);
if (list_empty(&ip->pending_mmaps))
- list_add(&ip->pending_mmaps, &dev->pending_mmaps);
- spin_unlock_irq(&dev->pending_lock);
+ list_add(&ip->pending_mmaps, &dev->rdi.pending_mmaps);
+ spin_unlock_irq(&dev->rdi.pending_lock);
}
ret = 0;
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <asm/pgtable.h>
-
-#include "qib_verbs.h"
-
-/**
- * qib_release_mmap_info - free mmap info structure
- * @ref: a pointer to the kref within struct rvt_mmap_info
- */
-void qib_release_mmap_info(struct kref *ref)
-{
- struct rvt_mmap_info *ip =
- container_of(ref, struct rvt_mmap_info, ref);
- struct qib_ibdev *dev = to_idev(ip->context->device);
-
- spin_lock_irq(&dev->pending_lock);
- list_del(&ip->pending_mmaps);
- spin_unlock_irq(&dev->pending_lock);
-
- vfree(ip->obj);
- kfree(ip);
-}
-
-/*
- * open and close keep track of how many times the CQ is mapped,
- * to avoid releasing it.
- */
-static void qib_vma_open(struct vm_area_struct *vma)
-{
- struct rvt_mmap_info *ip = vma->vm_private_data;
-
- kref_get(&ip->ref);
-}
-
-static void qib_vma_close(struct vm_area_struct *vma)
-{
- struct rvt_mmap_info *ip = vma->vm_private_data;
-
- kref_put(&ip->ref, qib_release_mmap_info);
-}
-
-static const struct vm_operations_struct qib_vm_ops = {
- .open = qib_vma_open,
- .close = qib_vma_close,
-};
-
-/**
- * qib_mmap - create a new mmap region
- * @context: the IB user context of the process making the mmap() call
- * @vma: the VMA to be initialized
- * Return zero if the mmap is OK. Otherwise, return an errno.
- */
-int qib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
-{
- struct qib_ibdev *dev = to_idev(context->device);
- unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
- unsigned long size = vma->vm_end - vma->vm_start;
- struct rvt_mmap_info *ip, *pp;
- int ret = -EINVAL;
-
- /*
- * Search the device's list of objects waiting for a mmap call.
- * Normally, this list is very short since a call to create a
- * CQ, QP, or SRQ is soon followed by a call to mmap().
- */
- spin_lock_irq(&dev->pending_lock);
- list_for_each_entry_safe(ip, pp, &dev->pending_mmaps,
- pending_mmaps) {
- /* Only the creator is allowed to mmap the object */
- if (context != ip->context || (__u64) offset != ip->offset)
- continue;
- /* Don't allow a mmap larger than the object. */
- if (size > ip->size)
- break;
-
- list_del_init(&ip->pending_mmaps);
- spin_unlock_irq(&dev->pending_lock);
-
- ret = remap_vmalloc_range(vma, ip->obj, 0);
- if (ret)
- goto done;
- vma->vm_ops = &qib_vm_ops;
- vma->vm_private_data = ip;
- qib_vma_open(vma);
- goto done;
- }
- spin_unlock_irq(&dev->pending_lock);
-done:
- return ret;
-}
-
-/*
- * Allocate information for qib_mmap
- */
-struct rvt_mmap_info *qib_create_mmap_info(struct qib_ibdev *dev,
- u32 size,
- struct ib_ucontext *context,
- void *obj) {
- struct rvt_mmap_info *ip;
-
- ip = kmalloc(sizeof(*ip), GFP_KERNEL);
- if (!ip)
- goto bail;
-
- size = PAGE_ALIGN(size);
-
- spin_lock_irq(&dev->mmap_offset_lock);
- if (dev->mmap_offset == 0)
- dev->mmap_offset = PAGE_SIZE;
- ip->offset = dev->mmap_offset;
- dev->mmap_offset += size;
- spin_unlock_irq(&dev->mmap_offset_lock);
-
- INIT_LIST_HEAD(&ip->pending_mmaps);
- ip->size = size;
- ip->context = context;
- ip->obj = obj;
- kref_init(&ip->ref);
-
-bail:
- return ip;
-}
-
-void qib_update_mmap_info(struct qib_ibdev *dev, struct rvt_mmap_info *ip,
- u32 size, void *obj)
-{
- size = PAGE_ALIGN(size);
-
- spin_lock_irq(&dev->mmap_offset_lock);
- if (dev->mmap_offset == 0)
- dev->mmap_offset = PAGE_SIZE;
- ip->offset = dev->mmap_offset;
- dev->mmap_offset += size;
- spin_unlock_irq(&dev->mmap_offset_lock);
-
- ip->size = size;
- ip->obj = obj;
-}
if (qp->s_flags & QIB_S_ANY_WAIT_SEND)
qp->s_flags &= ~QIB_S_ANY_WAIT_SEND;
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
if (!list_empty(&priv->iowait) && !(qp->s_flags & QIB_S_BUSY)) {
qp->s_flags &= ~QIB_S_ANY_WAIT_IO;
list_del_init(&priv->iowait);
}
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
if (!(qp->s_flags & QIB_S_BUSY)) {
qp->s_hdrwords = 0;
case IB_QPS_RESET:
if (qp->state != IB_QPS_RESET) {
qp->state = IB_QPS_RESET;
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
if (!list_empty(&priv->iowait))
list_del_init(&priv->iowait);
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
qp->s_flags &= ~(QIB_S_TIMER | QIB_S_ANY_WAIT);
spin_unlock(&qp->s_lock);
spin_unlock_irq(&qp->r_lock);
} else {
u32 s = sizeof(struct rvt_rwq) + qp->r_rq.size * sz;
- qp->ip = qib_create_mmap_info(dev, s,
+ qp->ip = rvt_create_mmap_info(&dev->rdi, s,
ibpd->uobject->context,
qp->r_rq.wq);
if (!qp->ip) {
spin_unlock(&dev->n_qps_lock);
if (qp->ip) {
- spin_lock_irq(&dev->pending_lock);
- list_add(&qp->ip->pending_mmaps, &dev->pending_mmaps);
- spin_unlock_irq(&dev->pending_lock);
+ spin_lock_irq(&dev->rdi.pending_lock);
+ list_add(&qp->ip->pending_mmaps, &dev->rdi.pending_mmaps);
+ spin_unlock_irq(&dev->rdi.pending_lock);
}
ret = &qp->ibqp;
bail_ip:
if (qp->ip)
- kref_put(&qp->ip->ref, qib_release_mmap_info);
+ kref_put(&qp->ip->ref, rvt_release_mmap_info);
else
vfree(qp->r_rq.wq);
free_qpn(&dev->qpn_table, qp->ibqp.qp_num);
spin_lock_irq(&qp->s_lock);
if (qp->state != IB_QPS_RESET) {
qp->state = IB_QPS_RESET;
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
if (!list_empty(&priv->iowait))
list_del_init(&priv->iowait);
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
qp->s_flags &= ~(QIB_S_TIMER | QIB_S_ANY_WAIT);
spin_unlock_irq(&qp->s_lock);
cancel_work_sync(&priv->s_work);
spin_unlock(&dev->n_qps_lock);
if (qp->ip)
- kref_put(&qp->ip->ref, qib_release_mmap_info);
+ kref_put(&qp->ip->ref, rvt_release_mmap_info);
else
vfree(qp->r_rq.wq);
vfree(qp->s_wq);
tx->dwords = dwords;
priv->s_tx = tx;
dev = &ppd->dd->verbs_dev;
- spin_lock(&dev->pending_lock);
+ spin_lock(&dev->rdi.pending_lock);
if (list_empty(&priv->iowait)) {
struct qib_ibport *ibp;
qp->s_flags |= QIB_S_WAIT_DMA_DESC;
list_add_tail(&priv->iowait, &dev->dmawait);
}
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
qp->s_flags &= ~QIB_S_BUSY;
spin_unlock(&qp->s_lock);
ret = -EBUSY;
u32 s = sizeof(struct rvt_rwq) + srq->rq.size * sz;
srq->ip =
- qib_create_mmap_info(dev, s, ibpd->uobject->context,
+ rvt_create_mmap_info(&dev->rdi, s, ibpd->uobject->context,
srq->rq.wq);
if (!srq->ip) {
ret = ERR_PTR(-ENOMEM);
spin_unlock(&dev->n_srqs_lock);
if (srq->ip) {
- spin_lock_irq(&dev->pending_lock);
- list_add(&srq->ip->pending_mmaps, &dev->pending_mmaps);
- spin_unlock_irq(&dev->pending_lock);
+ spin_lock_irq(&dev->rdi.pending_lock);
+ list_add(&srq->ip->pending_mmaps, &dev->rdi.pending_mmaps);
+ spin_unlock_irq(&dev->rdi.pending_lock);
}
ret = &srq->ibsrq;
struct qib_ibdev *dev = to_idev(srq->ibsrq.device);
u32 s = sizeof(struct rvt_rwq) + size * sz;
- qib_update_mmap_info(dev, ip, s, wq);
+ rvt_update_mmap_info(&dev->rdi, ip, s, wq);
/*
* Return the offset to mmap.
* Put user mapping info onto the pending list
* unless it already is on the list.
*/
- spin_lock_irq(&dev->pending_lock);
+ spin_lock_irq(&dev->rdi.pending_lock);
if (list_empty(&ip->pending_mmaps))
list_add(&ip->pending_mmaps,
- &dev->pending_mmaps);
- spin_unlock_irq(&dev->pending_lock);
+ &dev->rdi.pending_mmaps);
+ spin_unlock_irq(&dev->rdi.pending_lock);
}
} else if (attr_mask & IB_SRQ_LIMIT) {
spin_lock_irq(&srq->rq.lock);
dev->n_srqs_allocated--;
spin_unlock(&dev->n_srqs_lock);
if (srq->ip)
- kref_put(&srq->ip->ref, qib_release_mmap_info);
+ kref_put(&srq->ip->ref, rvt_release_mmap_info);
else
vfree(srq->rq.wq);
kfree(srq);
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;
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);
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 {
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);
}
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;
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);
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) {
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);
}
/*
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) {
qps[n++] = qp;
}
- spin_unlock(&dev->pending_lock);
+ spin_unlock(&dev->rdi.pending_lock);
for (i = 0; i < n; i++) {
qp = qps[i];
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;
}
*/
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;
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;
}
* 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;
}
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];
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);
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;
struct qib_ibdev {
struct rvt_dev_info rdi;
- struct list_head pending_mmaps;
- spinlock_t mmap_offset_lock; /* protect mmap_offset */
- u32 mmap_offset;
/* QP numbers are shared by all IB ports */
struct qib_qpn_table qpn_table;
struct qib_pio_header *pio_hdrs;
dma_addr_t pio_hdrs_phys;
/* list of QPs waiting for RNR timer */
- spinlock_t pending_lock; /* protect wait lists, PMA counters, etc. */
u32 qp_table_size; /* size of the hash table */
u32 qp_rnd; /* random bytes for hash */
spinlock_t qpt_lock;
}
}
-void qib_release_mmap_info(struct kref *ref);
-
-struct rvt_mmap_info *qib_create_mmap_info(struct qib_ibdev *dev, u32 size,
- struct ib_ucontext *context,
- void *obj);
-
-void qib_update_mmap_info(struct qib_ibdev *dev, struct rvt_mmap_info *ip,
- u32 size, void *obj);
-
-int qib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
-
int qib_get_rwqe(struct rvt_qp *qp, int wr_id_only);
void qib_migrate_qp(struct rvt_qp *qp);
projects / linux-2.6-microblaze.git / commitdiff