wl12xx: use 2 spare TX blocks for GEM cipher
Add tx_spare_blocks member to the wl1271 struct
for more generic configuration of the amount
of spare TX blocks that should be used.
The default value is 1.
In case GEM cipher is used by the STA, we need
2 spare TX blocks instead of just 1.
Signed-off-by: Guy Eilam <guy@wizery.com>
Acked-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c
index 0f15785..08227e6 100644
--- a/drivers/net/wireless/wl12xx/tx.c
+++ b/drivers/net/wireless/wl12xx/tx.c
@@ -204,9 +204,7 @@
u32 len;
u32 total_blocks;
int id, ret = -EBUSY, ac;
-
- /* we use 1 spare block */
- u32 spare_blocks = 1;
+ u32 spare_blocks = wl->tx_spare_blocks;
if (buf_offset + total_len > WL1271_AGGR_BUFFER_SIZE)
return -EAGAIN;
@@ -220,6 +218,10 @@
in the firmware */
len = wl12xx_calc_packet_alignment(wl, total_len);
+ /* in case of a dummy packet, use default amount of spare mem blocks */
+ if (unlikely(wl12xx_is_dummy_packet(wl, skb)))
+ spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
+
total_blocks = (len + TX_HW_BLOCK_SIZE - 1) / TX_HW_BLOCK_SIZE +
spare_blocks;