diff options
Diffstat (limited to 'drivers/net/wireless/ti/wl18xx/main.c')
| -rw-r--r-- | drivers/net/wireless/ti/wl18xx/main.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c index 1e0719c..c47f52c 100644 --- a/drivers/net/wireless/ti/wl18xx/main.c +++ b/drivers/net/wireless/ti/wl18xx/main.c @@ -21,6 +21,7 @@ #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/ip.h> #include "../wlcore/wlcore.h" #include "../wlcore/debug.h" @@ -501,9 +502,38 @@ static int wl18xx_hw_init(struct wl1271 *wl) if (ret < 0) return ret; + ret = wl18xx_acx_set_checksum_state(wl); + if (ret != 0) + return ret; + return ret; } +static void wl18xx_set_tx_desc_csum(struct wl1271 *wl, + struct wl1271_tx_hw_descr *desc, + struct sk_buff *skb) +{ + u32 ip_hdr_offset; + struct iphdr *ip_hdr; + + if (skb->ip_summed != CHECKSUM_PARTIAL) { + desc->wl18xx_checksum_data = 0; + return; + } + + ip_hdr_offset = skb_network_header(skb) - skb_mac_header(skb); + if (WARN_ON(ip_hdr_offset >= (1<<7))) { + desc->wl18xx_checksum_data = 0; + return; + } + + desc->wl18xx_checksum_data = ip_hdr_offset << 1; + + /* FW is interested only in the LSB of the protocol TCP=0 UDP=1 */ + ip_hdr = (void *)skb_network_header(skb); + desc->wl18xx_checksum_data |= (ip_hdr->protocol & 0x01); +} + static struct wlcore_ops wl18xx_ops = { .identify_chip = wl18xx_identify_chip, .boot = wl18xx_boot, @@ -517,6 +547,7 @@ static struct wlcore_ops wl18xx_ops = { .tx_immediate_compl = wl18xx_tx_immediate_completion, .tx_delayed_compl = NULL, .hw_init = wl18xx_hw_init, + .set_tx_desc_csum = wl18xx_set_tx_desc_csum, }; int __devinit wl18xx_probe(struct platform_device *pdev) |