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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/infiniband/hw/ehca/ehca_pd.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (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.c124
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);
-}