In WEP shared authentication, we encrypt the auth frame
in the host, and we want the fw to pass it as-is.
Use the TX_HW_ATTR_HOST_ENCRYPT flag in order to indicate
it to the fw.
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
---
depends on the "wl12xx: update fw api" patchset
drivers/net/wireless/wl12xx/tx.c | 17 +++++++++++++----
drivers/net/wireless/wl12xx/tx.h | 1 +
2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c
index ee313e7..1f5cc2a 100644
--- a/drivers/net/wireless/wl12xx/tx.c
+++ b/drivers/net/wireless/wl12xx/tx.c
@@ -255,16 +255,20 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct wl12xx_vif *wlvif,
int aligned_len, ac, rate_idx;
s64 hosttime;
u16 tx_attr = 0;
+ __le16 frame_control;
+ struct ieee80211_hdr *hdr;
+ u8 *frame_start;
bool is_dummy;
desc = (struct wl1271_tx_hw_descr *) skb->data;
+ frame_start = (u8 *)(desc + 1);
+ hdr = (struct ieee80211_hdr *)(frame_start + extra);
+ frame_control = hdr->frame_control;
/* relocate space for security header */
if (extra) {
- void *framestart = skb->data + sizeof(*desc);
- u16 fc = *(u16 *)(framestart + extra);
- int hdrlen = ieee80211_hdrlen(cpu_to_le16(fc));
- memmove(framestart, framestart + extra, hdrlen);
+ int hdrlen = ieee80211_hdrlen(frame_control);
+ memmove(frame_start, hdr, hdrlen);
}
/* configure packet life time */
@@ -353,6 +357,11 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct wl12xx_vif *wlvif,
desc->wl127x_mem.total_mem_blocks);
}
+ /* for WEP shared auth - no fw encryption is needed */
+ if (ieee80211_is_auth(frame_control) &&
+ ieee80211_has_protected(frame_control))
+ tx_attr |= TX_HW_ATTR_HOST_ENCRYPT;
+
desc->tx_attr = cpu_to_le16(tx_attr);
}
diff --git a/drivers/net/wireless/wl12xx/tx.h b/drivers/net/wireless/wl12xx/tx.h
index 2dbb24e..7ceb3ce 100644
--- a/drivers/net/wireless/wl12xx/tx.h
+++ b/drivers/net/wireless/wl12xx/tx.h
@@ -39,6 +39,7 @@
#define TX_HW_ATTR_LAST_WORD_PAD (BIT(10) | BIT(11))
#define TX_HW_ATTR_TX_CMPLT_REQ BIT(12)
#define TX_HW_ATTR_TX_DUMMY_REQ BIT(13)
+#define TX_HW_ATTR_HOST_ENCRYPT BIT(14)
#define TX_HW_ATTR_OFST_SAVE_RETRIES 0
#define TX_HW_ATTR_OFST_HEADER_PAD 1
--
1.7.6.401.g6a319
--
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