From 3f3fd78e33213b1684ac1e4deacbcf7ed1828e3c Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Thu, 3 Nov 2011 08:44:43 +0200 Subject: [PATCH] wl12xx: increase firmware upload chunk size The chunk size used during firmware upload was set to 512, which is the size of a single SDIO block (or two). This is very inneficient because we send one or two blocks only per SDIO transaction and don't get the full benefits of sdio block transfers. This patch increases the chunk size to 16K. This more than doubles the transfer speed both in wl127x and wl128x chips, with greater impact on the latter: wl127x: 512 bytes chunk -> ~132ms 16384 bytes chunk -> ~57ms wl128x: 512 bytes chunk -> ~216ms 16384 bytes chunk -> ~37ms Signed-off-by: Luciano Coelho --- drivers/net/wireless/wl12xx/reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/wl12xx/reg.h b/drivers/net/wireless/wl12xx/reg.h index 3f570f397586..df34d5977b98 100644 --- a/drivers/net/wireless/wl12xx/reg.h +++ b/drivers/net/wireless/wl12xx/reg.h @@ -408,7 +408,7 @@ /* Firmware image load chunk size */ -#define CHUNK_SIZE 512 +#define CHUNK_SIZE 16384 /* Firmware image header size */ #define FW_HDR_SIZE 8