mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 11:10:51 +07:00
e6664dff06
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*
|
|
* Copyright (c) 2009 Atheros Communications Inc.
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
|
|
#include "ath.h"
|
|
#include "trace.h"
|
|
|
|
MODULE_AUTHOR("Atheros Communications");
|
|
MODULE_DESCRIPTION("Shared library for Atheros wireless LAN cards.");
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
|
|
struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
|
|
u32 len,
|
|
gfp_t gfp_mask)
|
|
{
|
|
struct sk_buff *skb;
|
|
u32 off;
|
|
|
|
/*
|
|
* Cache-line-align. This is important (for the
|
|
* 5210 at least) as not doing so causes bogus data
|
|
* in rx'd frames.
|
|
*/
|
|
|
|
/* Note: the kernel can allocate a value greater than
|
|
* what we ask it to give us. We really only need 4 KB as that
|
|
* is this hardware supports and in fact we need at least 3849
|
|
* as that is the MAX AMSDU size this hardware supports.
|
|
* Unfortunately this means we may get 8 KB here from the
|
|
* kernel... and that is actually what is observed on some
|
|
* systems :( */
|
|
skb = __dev_alloc_skb(len + common->cachelsz - 1, gfp_mask);
|
|
if (skb != NULL) {
|
|
off = ((unsigned long) skb->data) % common->cachelsz;
|
|
if (off != 0)
|
|
skb_reserve(skb, common->cachelsz - off);
|
|
} else {
|
|
pr_err("skbuff alloc of size %u failed\n", len);
|
|
return NULL;
|
|
}
|
|
|
|
return skb;
|
|
}
|
|
EXPORT_SYMBOL(ath_rxbuf_alloc);
|
|
|
|
bool ath_is_mybeacon(struct ath_common *common, struct ieee80211_hdr *hdr)
|
|
{
|
|
return ieee80211_is_beacon(hdr->frame_control) &&
|
|
!is_zero_ether_addr(common->curbssid) &&
|
|
ether_addr_equal_64bits(hdr->addr3, common->curbssid);
|
|
}
|
|
EXPORT_SYMBOL(ath_is_mybeacon);
|
|
|
|
void ath_printk(const char *level, const struct ath_common* common,
|
|
const char *fmt, ...)
|
|
{
|
|
struct va_format vaf;
|
|
va_list args;
|
|
|
|
va_start(args, fmt);
|
|
|
|
vaf.fmt = fmt;
|
|
vaf.va = &args;
|
|
|
|
if (common && common->hw && common->hw->wiphy)
|
|
printk("%sath: %s: %pV",
|
|
level, wiphy_name(common->hw->wiphy), &vaf);
|
|
else
|
|
printk("%sath: %pV", level, &vaf);
|
|
|
|
trace_ath_log(common->hw->wiphy, &vaf);
|
|
|
|
va_end(args);
|
|
}
|
|
EXPORT_SYMBOL(ath_printk);
|