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cef367e6a1
(one manual change to fix grammar) Confirmed With: db Approved by: secteam (not really, but this is a comment typo fix)
106 lines
4.1 KiB
C
106 lines
4.1 KiB
C
/*
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This software is available to you under a choice of one of two
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licenses. You may choose to be licensed under the terms of the GNU
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General Public License (GPL) Version 2, available at
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<http://www.fsf.org/copyleft/gpl.html>, or the OpenIB.org BSD
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license, available in the LICENSE.TXT file accompanying this
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software. These details are also available at
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<http://openib.org/license.html>.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved.
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*/
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#ifndef H_MEMTRACK_H
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#define H_MEMTRACK_H
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enum memtrack_memtype_t {
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MEMTRACK_KMALLOC,
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MEMTRACK_VMALLOC,
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MEMTRACK_KMEM_OBJ,
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MEMTRACK_IOREMAP, /* IO-RE/UN-MAP */
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MEMTRACK_WORK_QUEUE, /* Handle work-queue create & destroy */
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MEMTRACK_PAGE_ALLOC, /* Handle page allocation and free */
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MEMTRACK_DMA_MAP_SINGLE,/* Handle ib_dma_single map and unmap */
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MEMTRACK_DMA_MAP_PAGE, /* Handle ib_dma_page map and unmap */
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MEMTRACK_DMA_MAP_SG, /* Handle ib_dma_sg map and unmap with and without attributes */
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MEMTRACK_NUM_OF_MEMTYPES
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};
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/* Invoke on memory allocation */
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void memtrack_alloc(enum memtrack_memtype_t memtype, unsigned long dev,
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unsigned long addr, unsigned long size, unsigned long addr2,
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int direction, const char *filename,
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const unsigned long line_num, int alloc_flags);
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/* Invoke on memory free */
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void memtrack_free(enum memtrack_memtype_t memtype, unsigned long dev,
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unsigned long addr, unsigned long size, int direction,
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const char *filename, const unsigned long line_num);
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/*
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* This function recognizes allocations which
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* may be released by kernel (e.g. skb & vnic) and
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* therefore not trackable by memtrack.
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* The allocations are recognized by the name
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* of their calling function.
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*/
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int is_non_trackable_alloc_func(const char *func_name);
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/*
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* In some cases we need to free a memory
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* we defined as "non trackable" (see
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* is_non_trackable_alloc_func).
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* This function recognizes such releases
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* by the name of their calling function.
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*/
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int is_non_trackable_free_func(const char *func_name);
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/* WA - In this function handles confirm
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the function name is
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'__ib_umem_release' or 'ib_umem_get'
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In this case we won't track the
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memory there because the kernel
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was the one who allocated it.
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Return value:
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1 - if the function name is match, else 0 */
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int is_umem_put_page(const char *func_name);
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/* Check page order size
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When Freeing a page allocation it checks whether
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we are trying to free the same amount of pages
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we ask to allocate (In log2(order)).
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In case an error if found it will print
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an error msg */
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int memtrack_check_size(enum memtrack_memtype_t memtype, unsigned long addr,
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unsigned long size, const char *filename,
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const unsigned long line_num);
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/* Search for a specific addr whether it exist in the
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current data-base.
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If not it will print an error msg,
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Return value: 0 - if addr exist, else 1 */
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int memtrack_is_new_addr(enum memtrack_memtype_t memtype, unsigned long addr, int expect_exist,
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const char *filename, const unsigned long line_num);
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/* Return current page reference counter */
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int memtrack_get_page_ref_count(unsigned long addr);
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/* Report current allocations status (for all memory types) */
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/* we do not export this function since it is used by cleanup_module only */
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/* void memtrack_report(void); */
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/* Allow support of error injections */
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int memtrack_inject_error(void);
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/* randomize allocated memory */
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int memtrack_randomize_mem(void);
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#endif
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