From: Eyal Perry Date: Thu, 19 Dec 2013 19:20:15 +0000 (+0200) Subject: net/mlx4_core: Set CQE/EQE size to 64B by default X-Git-Tag: next-20140106~60^2~8^2~3 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=be902ab122fcc59ba6a8588e820c31861d75a5a4;p=karo-tx-linux.git net/mlx4_core: Set CQE/EQE size to 64B by default To achieve out of the box performance default is to use 64 byte CQE/EQE. In tests that we conduct in our labs, we achieved a performance improvement of twice the message rate. For older VF/libmlx4 support, enable_64b_cqe_eqe must be set to 0 (disabled). Signed-off-by: Eyal Perry Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 6b13a15b3306..fbebfb0a6436 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -96,10 +96,10 @@ MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num" " To activate device managed" " flow steering when available, set to -1"); -static bool enable_64b_cqe_eqe; +static bool enable_64b_cqe_eqe = true; module_param(enable_64b_cqe_eqe, bool, 0444); MODULE_PARM_DESC(enable_64b_cqe_eqe, - "Enable 64 byte CQEs/EQEs when the FW supports this"); + "Enable 64 byte CQEs/EQEs when the FW supports this (default: True)"); #define HCA_GLOBAL_CAP_MASK 0