diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/infiniband/hw/ehca/ehca_pd.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/infiniband/hw/ehca/ehca_pd.c')
-rw-r--r-- | kernel/drivers/infiniband/hw/ehca/ehca_pd.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/kernel/drivers/infiniband/hw/ehca/ehca_pd.c b/kernel/drivers/infiniband/hw/ehca/ehca_pd.c deleted file mode 100644 index 351577a66..000000000 --- a/kernel/drivers/infiniband/hw/ehca/ehca_pd.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * IBM eServer eHCA Infiniband device driver for Linux on POWER - * - * PD functions - * - * Authors: Christoph Raisch <raisch@de.ibm.com> - * - * Copyright (c) 2005 IBM Corporation - * - * All rights reserved. - * - * This source code is distributed under a dual license of GPL v2.0 and OpenIB - * BSD. - * - * OpenIB BSD License - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER - * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <linux/slab.h> - -#include "ehca_tools.h" -#include "ehca_iverbs.h" - -static struct kmem_cache *pd_cache; - -struct ib_pd *ehca_alloc_pd(struct ib_device *device, - struct ib_ucontext *context, struct ib_udata *udata) -{ - struct ehca_pd *pd; - int i; - - pd = kmem_cache_zalloc(pd_cache, GFP_KERNEL); - if (!pd) { - ehca_err(device, "device=%p context=%p out of memory", - device, context); - return ERR_PTR(-ENOMEM); - } - - for (i = 0; i < 2; i++) { - INIT_LIST_HEAD(&pd->free[i]); - INIT_LIST_HEAD(&pd->full[i]); - } - mutex_init(&pd->lock); - - /* - * Kernel PD: when device = -1, 0 - * User PD: when context != -1 - */ - if (!context) { - /* - * Kernel PDs after init reuses always - * the one created in ehca_shca_reopen() - */ - struct ehca_shca *shca = container_of(device, struct ehca_shca, - ib_device); - pd->fw_pd.value = shca->pd->fw_pd.value; - } else - pd->fw_pd.value = (u64)pd; - - return &pd->ib_pd; -} - -int ehca_dealloc_pd(struct ib_pd *pd) -{ - struct ehca_pd *my_pd = container_of(pd, struct ehca_pd, ib_pd); - int i, leftovers = 0; - struct ipz_small_queue_page *page, *tmp; - - for (i = 0; i < 2; i++) { - list_splice(&my_pd->full[i], &my_pd->free[i]); - list_for_each_entry_safe(page, tmp, &my_pd->free[i], list) { - leftovers = 1; - free_page(page->page); - kmem_cache_free(small_qp_cache, page); - } - } - - if (leftovers) - ehca_warn(pd->device, - "Some small queue pages were not freed"); - - kmem_cache_free(pd_cache, my_pd); - - return 0; -} - -int ehca_init_pd_cache(void) -{ - pd_cache = kmem_cache_create("ehca_cache_pd", - sizeof(struct ehca_pd), 0, - SLAB_HWCACHE_ALIGN, - NULL); - if (!pd_cache) - return -ENOMEM; - return 0; -} - -void ehca_cleanup_pd_cache(void) -{ - if (pd_cache) - kmem_cache_destroy(pd_cache); -} |