* POSSIBILITY OF SUCH DAMAGE.
*/
-#include <asm/current.h>
-
#include "ehca_iverbs.h"
#include "ehca_classes.h"
#include "ehca_irq.h"
if (cqe >= 0xFFFFFFFF - 64 - additional_cqe)
return ERR_PTR(-EINVAL);
+ if (!atomic_add_unless(&shca->num_cqs, 1, shca->max_num_cqs)) {
+ ehca_err(device, "Unable to create CQ, max number of %i "
+ "CQs reached.", shca->max_num_cqs);
+ ehca_err(device, "To increase the maximum number of CQs "
+ "use the number_of_cqs module parameter.\n");
+ return ERR_PTR(-ENOSPC);
+ }
+
my_cq = kmem_cache_zalloc(cq_cache, GFP_KERNEL);
if (!my_cq) {
ehca_err(device, "Out of memory for ehca_cq struct device=%p",
device);
+ atomic_dec(&shca->num_cqs);
return ERR_PTR(-ENOMEM);
}
spin_lock_init(&my_cq->task_lock);
atomic_set(&my_cq->nr_events, 0);
init_waitqueue_head(&my_cq->wait_completion);
- my_cq->ownpid = current->tgid;
cq = &my_cq->ib_cq;
for (i = 0; i < QP_HASHTAB_LEN; i++)
INIT_HLIST_HEAD(&my_cq->qp_hashtab[i]);
+ INIT_LIST_HEAD(&my_cq->sqp_err_list);
+ INIT_LIST_HEAD(&my_cq->rqp_err_list);
+
if (context) {
struct ipz_queue *ipz_queue = &my_cq->ipz_queue;
struct ehca_create_cq_resp resp;
create_cq_exit1:
kmem_cache_free(cq_cache, my_cq);
+ atomic_dec(&shca->num_cqs);
return cq;
}
struct ehca_shca *shca = container_of(device, struct ehca_shca,
ib_device);
struct ipz_adapter_handle adapter_handle = shca->ipz_hca_handle;
- u32 cur_pid = current->tgid;
unsigned long flags;
if (cq->uobject) {
"user space cq_num=%x", my_cq->cq_number);
return -EINVAL;
}
- if (my_cq->ownpid != cur_pid) {
- ehca_err(device, "Invalid caller pid=%x ownpid=%x "
- "cq_num=%x",
- cur_pid, my_cq->ownpid, my_cq->cq_number);
- return -EINVAL;
- }
}
/*
ipz_queue_dtor(NULL, &my_cq->ipz_queue);
kmem_cache_free(cq_cache, my_cq);
+ atomic_dec(&shca->num_cqs);
return 0;
}
int ehca_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
{
- struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq);
- u32 cur_pid = current->tgid;
-
- if (cq->uobject && my_cq->ownpid != cur_pid) {
- ehca_err(cq->device, "Invalid caller pid=%x ownpid=%x",
- cur_pid, my_cq->ownpid);
- return -EINVAL;
- }
-
/* TODO: proper resize needs to be done */
ehca_err(cq->device, "not implemented yet");