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author | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2007-12-07 01:20:16 +0900 |
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committer | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2007-12-07 01:20:16 +0900 |
commit | 521dcd30b9cc5b72cd27ae04104f19369251aa20 (patch) | |
tree | bc33710a3ae6f97f0dcae8f02fd6f3c91322d96d /drivers/net/sk98lin/uboot_skb.c | |
parent | 260eea5676ca46903a335686cc020b29c4ca46fe (diff) | |
parent | 8d4f040a3c15036a6ea25a9c39e7d89fefa8440d (diff) | |
download | u-boot-imx-521dcd30b9cc5b72cd27ae04104f19369251aa20.zip u-boot-imx-521dcd30b9cc5b72cd27ae04104f19369251aa20.tar.gz u-boot-imx-521dcd30b9cc5b72cd27ae04104f19369251aa20.tar.bz2 |
Merge git://www.denx.de/git/u-boot
Conflicts:
drivers/Makefile
Diffstat (limited to 'drivers/net/sk98lin/uboot_skb.c')
-rw-r--r-- | drivers/net/sk98lin/uboot_skb.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/drivers/net/sk98lin/uboot_skb.c b/drivers/net/sk98lin/uboot_skb.c new file mode 100644 index 0000000..3a487a8 --- /dev/null +++ b/drivers/net/sk98lin/uboot_skb.c @@ -0,0 +1,122 @@ +/* + * Definitions for the 'struct sk_buff' memory handlers in U-Boot. + * + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> + +#ifdef CONFIG_SK98 + +#include <common.h> +#include "u-boot_compat.h" + +#define MAX_SKB 50 + +static struct sk_buff *sk_table[MAX_SKB]; + + +struct sk_buff * alloc_skb(u32 size, int dummy) +{ + int i; + struct sk_buff * ret = NULL; + + for (i = 0; i < MAX_SKB; i++) + { + if (sk_table[i]) + { + /* Already allocated. + */ + continue; + } + + sk_table[i] = malloc(sizeof(struct sk_buff)); + if (! sk_table[i]) + { + printf("alloc_skb: malloc failed\n"); + break; + } + + memset(sk_table[i], 0, sizeof(struct sk_buff)); + sk_table[i]->data = sk_table[i]->data_unaligned = + malloc(size + 16); + if (! sk_table[i]->data) + { + printf("alloc_skb: malloc failed\n"); + free(sk_table[i]); + sk_table[i] = NULL; + break; + } + + sk_table[i]->data += 16 - ((u32)sk_table[i]->data & 15); + sk_table[i]->len = size; + + break; + } + + if (i < MAX_SKB) + { + ret = sk_table[i]; + } + + if (! ret) + { + printf("Unable to allocate skb!\n"); + } + + return ret; +} + +void dev_kfree_skb_any(struct sk_buff *skb) +{ + int i; + + for (i = 0; i < MAX_SKB; i++) + { + if (sk_table[i] != skb) + { + continue; + } + + free(skb->data_unaligned); + free(skb); + sk_table[i] = NULL; + break; + } + + if (i == MAX_SKB) + { + printf("SKB allocation error!\n"); + } +} + +void skb_reserve(struct sk_buff *skb, unsigned int len) +{ + skb->data+=len; +} + +void skb_put(struct sk_buff *skb, unsigned int len) +{ + skb->len+=len; +} + +#endif /* CONFIG_SK98 */ |