From 8a3a1b65eeecd18357ac0cc941f43df153d4f271 Mon Sep 17 00:00:00 2001 From: "Prasanna S. Panchamukhi" Date: Tue, 13 Apr 2010 16:36:26 -0700 Subject: wimax/i2400m: SDIO specific TX queue's minimum buffer room for new message This patch specifies the TX queue's minimum buffer room required to accommodate one smallest SDIO payload. Please refer the documentation in the code. Signed-off-by: Prasanna S. Panchamukhi --- drivers/net/wimax/i2400m/sdio.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c index 7632f80954e3..9bfc26e1bc6b 100644 --- a/drivers/net/wimax/i2400m/sdio.c +++ b/drivers/net/wimax/i2400m/sdio.c @@ -483,6 +483,13 @@ int i2400ms_probe(struct sdio_func *func, sdio_set_drvdata(func, i2400ms); i2400m->bus_tx_block_size = I2400MS_BLK_SIZE; + /* + * Room required in the TX queue for SDIO message to accommodate + * a smallest payload while allocating header space is 224 bytes, + * which is the smallest message size(the block size 256 bytes) + * minus the smallest message header size(32 bytes). + */ + i2400m->bus_tx_room_min = I2400MS_BLK_SIZE - I2400M_PL_ALIGN * 2; i2400m->bus_pl_size_max = I2400MS_PL_SIZE_MAX; i2400m->bus_setup = i2400ms_bus_setup; i2400m->bus_dev_start = i2400ms_bus_dev_start; -- cgit v1.2.3