/*
* dapl_rmr_free
*
* DAPL Requirements Version xxx, 6.6.4.2
*
* Destroy an instance of the Remote Memory Region
*
* Input:
* rmr_handle
*
* Output:
* none
*
* Returns:
* DAT_SUCCESS
* DAT_INVALID_PARAMETER
*/
DAT_RETURN
dapl_rmr_free(IN DAT_RMR_HANDLE rmr_handle)
{
DAPL_RMR *rmr;
DAT_RETURN dat_status;
dat_status = DAT_SUCCESS;
if (DAPL_BAD_HANDLE(rmr_handle, DAPL_MAGIC_RMR)) {
dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
DAT_INVALID_HANDLE_RMR);
goto bail;
}
rmr = (DAPL_RMR *)rmr_handle;
/*
* If the user did not perform an unbind op, release
* counts here.
*/
if (rmr->param.lmr_triplet.virtual_address != 0) {
(void) dapl_os_atomic_dec(&rmr->lmr->lmr_ref_count);
rmr->param.lmr_triplet.virtual_address = 0;
}
dat_status = dapls_ib_mw_free(rmr);
if (dat_status != DAT_SUCCESS) {
goto bail;
}
dapl_os_atomic_dec(&rmr->pz->pz_ref_count);
dapl_rmr_dealloc(rmr);
bail:
return (dat_status);
}
/*
* dapls_osd_fork_cleanup
*
* Update val to value of passed in environment variable if present
*
* Input:
* env_str
* val Updated if environment variable exists
*
* Returns:
* TRUE or FALSE
*/
void dapls_osd_fork_cleanup(void)
{
DAPL_PROVIDER_LIST_NODE *cur_node;
DAPL_HCA *hca_ptr;
DAPL_IA *ia_ptr;
DAPL_LMR *lmr_ptr;
DAPL_RMR *rmr_ptr;
DAPL_PZ *pz_ptr;
DAPL_CR *cr_ptr;
DAPL_EP *ep_ptr;
DAPL_EVD *evd_ptr;
DAT_EP_PARAM *param;
DAPL_SP *sp_ptr;
while (NULL != g_dapl_provider_list.head) {
cur_node = g_dapl_provider_list.head;
g_dapl_provider_list.head = cur_node->next;
hca_ptr = (DAPL_HCA *) cur_node->data.extension;
/*
* Walk the list of IA ptrs & clean up. This is purposely
* a destructive list walk, we really don't want to preserve
* any of it.
*/
while (!dapl_llist_is_empty(&hca_ptr->ia_list_head)) {
ia_ptr = (DAPL_IA *)
dapl_llist_peek_head(&hca_ptr->ia_list_head);
/*
* The rest of the cleanup code is similar to dapl_ia_close,
* the big difference is that we don't release IB resources,
* only memory; the underlying IB subsystem doesn't deal
* with fork at all, so leave IB handles alone.
*/
while (!dapl_llist_is_empty(&ia_ptr->rmr_list_head)) {
rmr_ptr = (DAPL_RMR *)
dapl_llist_peek_head(&ia_ptr->
rmr_list_head);
if (rmr_ptr->param.lmr_triplet.
virtual_address != 0) {
dapl_os_atomic_dec(&rmr_ptr->lmr->
lmr_ref_count);
rmr_ptr->param.lmr_triplet.
virtual_address = 0;
}
dapl_os_atomic_dec(&rmr_ptr->pz->pz_ref_count);
dapl_ia_unlink_rmr(rmr_ptr->header.owner_ia,
rmr_ptr);
dapl_rmr_dealloc(rmr_ptr);
}
while (!dapl_llist_is_empty(&ia_ptr->rsp_list_head)) {
sp_ptr = (DAPL_SP *)
dapl_llist_peek_head(&ia_ptr->
rsp_list_head);
dapl_os_atomic_dec(&
((DAPL_EVD *) sp_ptr->
evd_handle)->evd_ref_count);
dapls_ia_unlink_sp(ia_ptr, sp_ptr);
dapls_sp_free_sp(sp_ptr);
}
while (!dapl_llist_is_empty(&ia_ptr->ep_list_head)) {
ep_ptr = (DAPL_EP *)
dapl_llist_peek_head(&ia_ptr->ep_list_head);
param = &ep_ptr->param;
if (param->pz_handle != NULL) {
dapl_os_atomic_dec(&
((DAPL_PZ *) param->
pz_handle)->
pz_ref_count);
}
if (param->recv_evd_handle != NULL) {
dapl_os_atomic_dec(&
((DAPL_EVD *) param->
recv_evd_handle)->
evd_ref_count);
}
if (param->request_evd_handle) {
dapl_os_atomic_dec(&
((DAPL_EVD *) param->
request_evd_handle)->
evd_ref_count);
}
if (param->connect_evd_handle != NULL) {
dapl_os_atomic_dec(&
((DAPL_EVD *) param->
connect_evd_handle)->
evd_ref_count);
}
/* ...and free the resource */
dapl_ia_unlink_ep(ia_ptr, ep_ptr);
dapl_ep_dealloc(ep_ptr);
}
while (!dapl_llist_is_empty(&ia_ptr->lmr_list_head)) {
lmr_ptr = (DAPL_LMR *)
dapl_llist_peek_head(&ia_ptr->
lmr_list_head);
(void)dapls_hash_remove(lmr_ptr->header.
owner_ia->hca_ptr->
lmr_hash_table,
lmr_ptr->param.
lmr_context, NULL);
pz_ptr = (DAPL_PZ *) lmr_ptr->param.pz_handle;
dapl_os_atomic_dec(&pz_ptr->pz_ref_count);
dapl_ia_unlink_lmr(lmr_ptr->header.owner_ia,
lmr_ptr);
dapl_lmr_dealloc(lmr_ptr);
}
while (!dapl_llist_is_empty(&ia_ptr->psp_list_head)) {
sp_ptr = (DAPL_SP *)
dapl_llist_peek_head(&ia_ptr->
psp_list_head);
while (!dapl_llist_is_empty
(&sp_ptr->cr_list_head)) {
cr_ptr = (DAPL_CR *)
dapl_llist_peek_head(&sp_ptr->
cr_list_head);
dapl_sp_remove_cr(sp_ptr, cr_ptr);
dapls_cr_free(cr_ptr);
}
dapls_ia_unlink_sp(ia_ptr, sp_ptr);
dapl_os_atomic_dec(&
((DAPL_EVD *) sp_ptr->
evd_handle)->evd_ref_count);
dapls_sp_free_sp(sp_ptr);
}
while (!dapl_llist_is_empty(&ia_ptr->pz_list_head)) {
pz_ptr = (DAPL_PZ *)
dapl_llist_peek_head(&ia_ptr->pz_list_head);
dapl_ia_unlink_pz(pz_ptr->header.owner_ia,
pz_ptr);
dapl_pz_dealloc(pz_ptr);
}
while (!dapl_llist_is_empty(&ia_ptr->evd_list_head)) {
evd_ptr = (DAPL_EVD *)
dapl_llist_peek_head(&ia_ptr->
evd_list_head);
dapl_ia_unlink_evd(evd_ptr->header.owner_ia,
evd_ptr);
/* reset the cq_handle to avoid having it removed */
evd_ptr->ib_cq_handle = IB_INVALID_HANDLE;
dapls_evd_dealloc(evd_ptr);
}
dapl_hca_unlink_ia(ia_ptr->hca_ptr, ia_ptr);
/* asycn error evd was taken care of above, reset the pointer */
ia_ptr->async_error_evd = NULL;
dapls_ia_free(ia_ptr);
} /* end while ( ia_ptr != NULL ) */
dapl_os_free(cur_node, sizeof(DAPL_PROVIDER_LIST_NODE));
} /* end while (NULL != g_dapl_provider_list.head) */
}
