/*
* IBM eServer eHCA Infiniband device driver for Linux on POWER
*
- * adress vector functions
+ * address vector functions
*
* Authors: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
* Khadija Souissi <souissik@de.ibm.com>
* POSSIBILITY OF SUCH DAMAGE.
*/
-
-#include <asm/current.h>
+#include <linux/slab.h>
#include "ehca_tools.h"
#include "ehca_iverbs.h"
link = ib_width_enum_to_int(pa.active_width) * pa.active_speed;
- /* IPD = round((link / path) - 1) */
- *ipd = ((link + (path >> 1)) / path) - 1;
+ if (path >= link)
+ /* no need to throttle if path faster than link */
+ *ipd = 0;
+ else
+ /* IPD = round((link / path) - 1) */
+ *ipd = ((link + (path >> 1)) / path) - 1;
return 0;
}
{
struct ehca_av *av;
struct ehca_ud_av new_ehca_av;
- struct ehca_pd *my_pd = container_of(ah->pd, struct ehca_pd, ib_pd);
struct ehca_shca *shca = container_of(ah->pd->device, struct ehca_shca,
ib_device);
- u32 cur_pid = current->tgid;
-
- if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context &&
- my_pd->ownpid != cur_pid) {
- ehca_err(ah->device, "Invalid caller pid=%x ownpid=%x",
- cur_pid, my_pd->ownpid);
- return -EINVAL;
- }
memset(&new_ehca_av, 0, sizeof(new_ehca_av));
new_ehca_av.sl = ah_attr->sl;
int ehca_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr)
{
struct ehca_av *av = container_of(ah, struct ehca_av, ib_ah);
- struct ehca_pd *my_pd = container_of(ah->pd, struct ehca_pd, ib_pd);
- u32 cur_pid = current->tgid;
-
- if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context &&
- my_pd->ownpid != cur_pid) {
- ehca_err(ah->device, "Invalid caller pid=%x ownpid=%x",
- cur_pid, my_pd->ownpid);
- return -EINVAL;
- }
memcpy(&ah_attr->grh.dgid, &av->av.grh.word_3,
sizeof(ah_attr->grh.dgid));
int ehca_destroy_ah(struct ib_ah *ah)
{
- struct ehca_pd *my_pd = container_of(ah->pd, struct ehca_pd, ib_pd);
- u32 cur_pid = current->tgid;
-
- if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context &&
- my_pd->ownpid != cur_pid) {
- ehca_err(ah->device, "Invalid caller pid=%x ownpid=%x",
- cur_pid, my_pd->ownpid);
- return -EINVAL;
- }
-
kmem_cache_free(av_cache, container_of(ah, struct ehca_av, ib_ah));
return 0;