mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-13 06:36:16 +09:00
7152b1d0b3
* Add PCI support for SL8245 board * Support IceCube board configurations with 1 x AMD AM29LV065 (8 MB) or 1 x AM29LV652 (two LV065 in one chip = 16 MB); Run IPB at 133 Mhz; adjust the MII clock frequency accordingly * Set BRG_CLK on PM825/826 to 64MHz (VCO_OUT / 4, instead of 16 MHz) to allow for more accurate baudrate settings (error now 0.7% at 115 kbps, instead of 3.5% before) * Patch by Andreas Mohr, 4 Sep 2003: Fix a lot of spelling errors
117 lines
2.3 KiB
C
117 lines
2.3 KiB
C
/*
|
|
* 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 <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;
|
|
}
|