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Commit 169da04f authored by Arik Nemtsov's avatar Arik Nemtsov Committed by Luciano Coelho
Browse files

wlcore/wl18xx: add hw op for Rx HW checksum 



Some chip families can checksum certain classes of Rx packets in FW.
Implement the Rx-checksum feature as a HW-op. For the 18xx chip-family,
set Rx-checsum according to indication from FW.

Signed-off-by: default avatarArik Nemtsov <arik@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
parent 2fc28de5

drivers/net/wireless/ti/wl12xx/main.c

+1 −0
Original line number Diff line number Diff line
@@ -1314,6 +1314,7 @@ static struct wlcore_ops wl12xx_ops = { 
	.get_pg_ver		= wl12xx_get_pg_ver,

	.get_mac		= wl12xx_get_mac,

	.set_tx_desc_csum	= wl12xx_set_tx_desc_csum,

	.set_rx_csum		= NULL,

};



static struct ieee80211_sta_ht_cap wl12xx_ht_cap = {

drivers/net/wireless/ti/wl18xx/main.c

+11 −0
Original line number Diff line number Diff line
@@ -39,6 +39,8 @@ 
#include "wl18xx.h"





#define WL18XX_RX_CHECKSUM_MASK      0x40



static const u8 wl18xx_rate_to_idx_2ghz[] = {

	/* MCS rates are used only with 11n */

	15,                            /* WL18XX_CONF_HW_RXTX_RATE_MCS15 */
@@ -534,6 +536,14 @@ static void wl18xx_set_tx_desc_csum(struct wl1271 *wl, 
	desc->wl18xx_checksum_data |= (ip_hdr->protocol & 0x01);

}



static void wl18xx_set_rx_csum(struct wl1271 *wl,

			       struct wl1271_rx_descriptor *desc,

			       struct sk_buff *skb)

{

	if (desc->status & WL18XX_RX_CHECKSUM_MASK)

		skb->ip_summed = CHECKSUM_UNNECESSARY;

}



static struct wlcore_ops wl18xx_ops = {

	.identify_chip	= wl18xx_identify_chip,

	.boot		= wl18xx_boot,
@@ -548,6 +558,7 @@ static struct wlcore_ops wl18xx_ops = { 
	.tx_delayed_compl = NULL,

	.hw_init	= wl18xx_hw_init,

	.set_tx_desc_csum = wl18xx_set_tx_desc_csum,

	.set_rx_csum = wl18xx_set_rx_csum,

};



int __devinit wl18xx_probe(struct platform_device *pdev)

drivers/net/wireless/ti/wlcore/hw_ops.h

+9 −0
Original line number Diff line number Diff line
@@ -130,4 +130,13 @@ wlcore_hw_set_tx_desc_csum(struct wl1271 *wl, 
	wl->ops->set_tx_desc_csum(wl, desc, skb);

}



static inline void

wlcore_hw_set_rx_csum(struct wl1271 *wl,

		      struct wl1271_rx_descriptor *desc,

		      struct sk_buff *skb)

{

	if (wl->ops->set_rx_csum)

		wl->ops->set_rx_csum(wl, desc, skb);

}



#endif

drivers/net/wireless/ti/wlcore/rx.c

+1 −0
Original line number Diff line number Diff line
@@ -186,6 +186,7 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length, 
		is_data = 1;



	wl1271_rx_status(wl, desc, IEEE80211_SKB_RXCB(skb), beacon);

	wlcore_hw_set_rx_csum(wl, desc, skb);



	seq_num = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;

	wl1271_debug(DEBUG_RX, "rx skb 0x%p: %d B %s seq %d hlid %d", skb,

drivers/net/wireless/ti/wlcore/wlcore.h

+4 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ 
/* forward declaration */

struct wl1271_tx_hw_descr;

enum wl_rx_buf_align;

struct wl1271_rx_descriptor;



struct wlcore_ops {

	int (*identify_chip)(struct wl1271 *wl);
@@ -64,6 +65,9 @@ struct wlcore_ops { 
	void (*set_tx_desc_csum)(struct wl1271 *wl,

				 struct wl1271_tx_hw_descr *desc,

				 struct sk_buff *skb);

	void (*set_rx_csum)(struct wl1271 *wl,

			    struct wl1271_rx_descriptor *desc,

			    struct sk_buff *skb);

};



enum wlcore_partitions {