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authorVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>2014-09-10 16:34:45 +0300
committerJohn W. Linville <linville@tuxdriver.com>2014-09-11 15:27:38 -0400
commite0106adade2dd16fb776f53f25ffe50da0793f3d (patch)
tree4918217c0a3cb8eea99627904d56048355b47fff /drivers/net/wireless/ath/wil6210/netdev.c
parent1bd922fce29168b8a7d5b53c7be89de87381896b (diff)
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wil6210: enlarge TX/RX buffer length
HW supports upto 2304 packet size on the air. HW is responsible for adding (Tx) or removing (Rx) the following headers: 802.11 hdr: 26B SNAP: 8B CRC: 4B Security (optional): 24B HW adds max 62B to the payload passed from driver. It means driver can use max packet size of 2304-62 = 2242B Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/netdev.c')
-rw-r--r--drivers/net/wireless/ath/wil6210/netdev.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c
index a995d9d59cb5..1c0c77d9a14f 100644
--- a/drivers/net/wireless/ath/wil6210/netdev.c
+++ b/drivers/net/wireless/ath/wil6210/netdev.c
@@ -17,6 +17,7 @@
#include <linux/etherdevice.h>
#include "wil6210.h"
+#include "txrx.h"
static int wil_open(struct net_device *ndev)
{
@@ -40,8 +41,10 @@ static int wil_change_mtu(struct net_device *ndev, int new_mtu)
{
struct wil6210_priv *wil = ndev_to_wil(ndev);
- if (new_mtu < 68 || new_mtu > IEEE80211_MAX_DATA_LEN_DMG)
+ if (new_mtu < 68 || new_mtu > (TX_BUF_LEN - ETH_HLEN)) {
+ wil_err(wil, "invalid MTU %d\n", new_mtu);
return -EINVAL;
+ }
wil_dbg_misc(wil, "change MTU %d -> %d\n", ndev->mtu, new_mtu);
ndev->mtu = new_mtu;