18xx chips do not require extra space in the TKIP header. Introduce a
new HW quirk to allow us to make this feature arch-specific. 12xx chip
will now have this quirk.
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
---
drivers/net/wireless/ti/wl12xx/main.c | 7 +++++--
drivers/net/wireless/ti/wl18xx/tx.c | 3 ++-
drivers/net/wireless/ti/wlcore/cmd.c | 5 +++--
drivers/net/wireless/ti/wlcore/main.c | 8 +++++---
drivers/net/wireless/ti/wlcore/tx.c | 9 ++++++---
drivers/net/wireless/ti/wlcore/wlcore.h | 3 +++
6 files changed, 24 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 522c898..982cb20 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -632,7 +632,8 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
/* clear the alignment quirk, since we don't support it */
wl->quirks &= ~WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN;
- wl->quirks |= WLCORE_QUIRK_LEGACY_NVS;
+ wl->quirks |= WLCORE_QUIRK_LEGACY_NVS |
+ WLCORE_QUIRK_TKIP_HEADER_SPACE;
wl->sr_fw_name = WL127X_FW_NAME_SINGLE;
wl->mr_fw_name = WL127X_FW_NAME_MULTI;
memcpy(&wl->conf.mem, &wl12xx_default_priv_conf.mem_wl127x,
@@ -650,7 +651,8 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
/* clear the alignment quirk, since we don't support it */
wl->quirks &= ~WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN;
- wl->quirks |= WLCORE_QUIRK_LEGACY_NVS;
+ wl->quirks |= WLCORE_QUIRK_LEGACY_NVS |
+ WLCORE_QUIRK_TKIP_HEADER_SPACE;
wl->plt_fw_name = WL127X_PLT_FW_NAME;
wl->sr_fw_name = WL127X_FW_NAME_SINGLE;
wl->mr_fw_name = WL127X_FW_NAME_MULTI;
@@ -665,6 +667,7 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
case CHIP_ID_1283_PG20:
wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1283 PG20)",
wl->chip.id);
+ wl->quirks |= WLCORE_QUIRK_TKIP_HEADER_SPACE;
wl->plt_fw_name = WL128X_PLT_FW_NAME;
wl->sr_fw_name = WL128X_FW_NAME_SINGLE;
wl->mr_fw_name = WL128X_FW_NAME_MULTI;
diff --git a/drivers/net/wireless/ti/wl18xx/tx.c b/drivers/net/wireless/ti/wl18xx/tx.c
index 4de00b9..5b1fb10 100644
--- a/drivers/net/wireless/ti/wl18xx/tx.c
+++ b/drivers/net/wireless/ti/wl18xx/tx.c
@@ -75,7 +75,8 @@ static void wl18xx_tx_complete_packet(struct wl1271 *wl, u8 tx_stat_byte)
skb_pull(skb, sizeof(struct wl1271_tx_hw_descr));
/* remove TKIP header space if present */
- if (info->control.hw_key &&
+ if ((wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) &&
+ info->control.hw_key &&
info->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP) {
int hdrlen = ieee80211_get_hdrlen_from_skb(skb);
memmove(skb->data + WL1271_EXTRA_SPACE_TKIP, skb->data, hdrlen);
diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index df8d672..885364c 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -1046,7 +1046,7 @@ out:
int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
- int ret, extra;
+ int ret, extra = 0;
u16 fc;
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct sk_buff *skb;
@@ -1085,7 +1085,8 @@ int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
/* encryption space */
switch (wlvif->encryption_type) {
case KEY_TKIP:
- extra = WL1271_EXTRA_SPACE_TKIP;
+ if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
+ extra = WL1271_EXTRA_SPACE_TKIP;
break;
case KEY_AES:
extra = WL1271_EXTRA_SPACE_AES;
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 0dc3ae3..d6e6509 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -4978,9 +4978,11 @@ static int wl1271_init_ieee80211(struct wl1271 *wl)
WL1271_CIPHER_SUITE_GEM,
};
- /* The tx descriptor buffer and the TKIP space. */
- wl->hw->extra_tx_headroom = WL1271_EXTRA_SPACE_TKIP +
- sizeof(struct wl1271_tx_hw_descr);
+ /* The tx descriptor buffer */
+ wl->hw->extra_tx_headroom = sizeof(struct wl1271_tx_hw_descr);
+
+ if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
+ wl->hw->extra_tx_headroom += WL1271_EXTRA_SPACE_TKIP;
/* unit us */
/* FIXME: find a proper value */
diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index e8a2998..6b68e29 100644
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -358,7 +358,8 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct wl12xx_vif *wlvif,
/* TODO: handle dummy packets on multi-vifs */
is_dummy = wl12xx_is_dummy_packet(wl, skb);
- if (info->control.hw_key &&
+ if ((wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) &&
+ info->control.hw_key &&
info->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP)
extra = WL1271_EXTRA_SPACE_TKIP;
@@ -852,7 +853,8 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
skb_pull(skb, sizeof(struct wl1271_tx_hw_descr));
/* remove TKIP header space if present */
- if (info->control.hw_key &&
+ if ((wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) &&
+ info->control.hw_key &&
info->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP) {
int hdrlen = ieee80211_get_hdrlen_from_skb(skb);
memmove(skb->data + WL1271_EXTRA_SPACE_TKIP, skb->data,
@@ -1001,7 +1003,8 @@ void wl12xx_tx_reset(struct wl1271 *wl, bool reset_tx_queues)
*/
info = IEEE80211_SKB_CB(skb);
skb_pull(skb, sizeof(struct wl1271_tx_hw_descr));
- if (info->control.hw_key &&
+ if ((wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) &&
+ info->control.hw_key &&
info->control.hw_key->cipher ==
WLAN_CIPHER_SUITE_TKIP) {
int hdrlen = ieee80211_get_hdrlen_from_skb(skb);
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index 001777a..5a35a33 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -412,6 +412,9 @@ int wlcore_free_hw(struct wl1271 *wl);
/* Some firmwares may not support ELP */
#define WLCORE_QUIRK_NO_ELP BIT(6)
+/* extra header space is required for TKIP */
+#define WLCORE_QUIRK_TKIP_HEADER_SPACE BIT(8)
+
/* TODO: move to the lower drivers when all usages are abstracted */
#define CHIP_ID_1271_PG10 (0x4030101)
#define CHIP_ID_1271_PG20 (0x4030111)
--
1.7.9.5
--
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