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wil6210: enable fix for HW bug in 802.11->803.3 transform 

In the old hardware, bug existed that caused DA and SA for every
Rx packet to be swapped in the AP mode.
New hardware has fix for this bug. Enable this fix in the
hardware.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Vladimir Kondratiev 2015-02-15 14:02:32 +02:00 committed by Kalle Valo
parent 9a5511b58b
commit e3351277ac
3 changed files with 11 additions and 31 deletions
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4
drivers/net/wireless/ath/wil6210/main.c
View File

@ -579,6 +579,10 @@ static int wil_target_reset(struct wil6210_priv *wil)
C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD);
/* enable fix for HW bug related to the SA/DA swap in AP Rx */
S(RGF_DMA_OFUL_NID_0, BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN |
BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC);
wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY);
return 0;
}

31
drivers/net/wireless/ath/wil6210/txrx.c
View File

@ -346,27 +346,6 @@ static void wil_rx_add_radiotap_header(struct wil6210_priv *wil,
}
}
/*
* Fast swap in place between 2 registers
*/
static void wil_swap_u16(u16 *a, u16 *b)
{
*a ^= *b;
*b ^= *a;
*a ^= *b;
}
static void wil_swap_ethaddr(void *data)
{
struct ethhdr *eth = data;
u16 *s = (u16 *)eth->h_source;
u16 *d = (u16 *)eth->h_dest;
wil_swap_u16(s++, d++);
wil_swap_u16(s++, d++);
wil_swap_u16(s, d);
}
/**
* reap 1 frame from @swhead
*
@ -386,7 +365,6 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
unsigned int sz = mtu_max + ETH_HLEN;
u16 dmalen;
u8 ftype;
u8 ds_bits;
int cid;
struct wil_net_stats *stats;
@ -474,15 +452,6 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
*/
}
ds_bits = wil_rxdesc_ds_bits(d);
if (ds_bits == 1) {
/*
* HW bug - in ToDS mode, i.e. Rx on AP side,
* addresses get swapped
*/
wil_swap_ethaddr(skb->data);
}
return skb;
}

7
drivers/net/wireless/ath/wil6210/wil6210.h
View File

@ -181,6 +181,13 @@ struct RGF_BL {
#define BIT_DMA_ITR_CNT_CRL_CLR BIT(3)
#define BIT_DMA_ITR_CNT_CRL_REACH_TRSH BIT(4)
/* Offload control (Sparrow B0+) */
#define RGF_DMA_OFUL_NID_0 (0x881cd4)
#define BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN BIT(0)
#define BIT_DMA_OFUL_NID_0_TX_EXT_TR_EN BIT(1)
#define BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC BIT(2)
#define BIT_DMA_OFUL_NID_0_TX_EXT_A3_SRC BIT(3)
/* New (sparrow v2+) interrupt moderation control */
#define RGF_DMA_ITR_TX_DESQ_NO_MOD (0x881d40)
#define RGF_DMA_ITR_TX_CNT_TRSH (0x881d34)