linux/drivers/net/xen-netback/hash.c

/*
 * Copyright (c) 2016 Citrix Systems Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Softare Foundation; or, when distributed
 * separately from the Linux kernel or incorporated into other
 * software packages, subject to the following license:
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this source file (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#define XEN_NETIF_DEFINE_TOEPLITZ

#include "common.h"
#include <linux/vmalloc.h>
#include <linux/rculist.h>

static void xenvif_add_hash(struct xenvif *vif, const u8 *tag,
			    unsigned int len, u32 val)
{ … }

static u32 xenvif_new_hash(struct xenvif *vif, const u8 *data,
			   unsigned int len)
{ … }

static void xenvif_flush_hash(struct xenvif *vif)
{ … }

static u32 xenvif_find_hash(struct xenvif *vif, const u8 *data,
			    unsigned int len)
{ … }

void xenvif_set_skb_hash(struct xenvif *vif, struct sk_buff *skb)
{ … }

u32 xenvif_set_hash_alg(struct xenvif *vif, u32 alg)
{ … }

u32 xenvif_get_hash_flags(struct xenvif *vif, u32 *flags)
{ … }

u32 xenvif_set_hash_flags(struct xenvif *vif, u32 flags)
{ … }

u32 xenvif_set_hash_key(struct xenvif *vif, u32 gref, u32 len)
{ … }

u32 xenvif_set_hash_mapping_size(struct xenvif *vif, u32 size)
{ … }

u32 xenvif_set_hash_mapping(struct xenvif *vif, u32 gref, u32 len,
			    u32 off)
{ … }

#ifdef CONFIG_DEBUG_FS
void xenvif_dump_hash_info(struct xenvif *vif, struct seq_file *m)
{ … }
#endif /* CONFIG_DEBUG_FS */

void xenvif_init_hash(struct xenvif *vif)
{ … }

void xenvif_deinit_hash(struct xenvif *vif)
{ … }