Commit 207347e4 authored by Juuso Oikarinen's avatar Juuso Oikarinen Committed by John W. Linville
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wl1271: Update TX path block calucation algo



Update the TX path block calculation algorithm based on TI reference.
Signed-off-by: default avatarJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: default avatarLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: default avatarLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 3cfd6cf9
...@@ -57,8 +57,8 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra) ...@@ -57,8 +57,8 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra)
/* approximate the number of blocks required for this packet /* approximate the number of blocks required for this packet
in the firmware */ in the firmware */
/* FIXME: try to figure out what is done here and make it cleaner */ /* FIXME: try to figure out what is done here and make it cleaner */
total_blocks = (total_len) >> TX_HW_BLOCK_SHIFT_DIV; total_blocks = (total_len + 20) >> TX_HW_BLOCK_SHIFT_DIV;
excluded = (total_blocks << 2) + (skb->len & 0xff) + 34; excluded = (total_blocks << 2) + ((total_len + 20) & 0xff) + 34;
total_blocks += (excluded > 252) ? 2 : 1; total_blocks += (excluded > 252) ? 2 : 1;
total_blocks += TX_HW_BLOCK_SPARE; total_blocks += TX_HW_BLOCK_SPARE;
......
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