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Commit 51f5f0ee authored by Jack Morgenstein's avatar Jack Morgenstein Committed by Roland Dreier
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mlx4_core: Add module parameter to enable QoS support 



Add a module parameter "enable_qos" to mlx4_core.  If this param is
set, enable support for QoS in the INIT_HCA command.  By default, the
parameter is set to 0 (disabled).

Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent d35cb360

drivers/net/mlx4/fw.c

+8 −0
Original line number Diff line number Diff line
@@ -46,6 +46,10 @@ enum { 
extern void __buggy_use_of_MLX4_GET(void);

extern void __buggy_use_of_MLX4_PUT(void);



static int enable_qos;

module_param(enable_qos, bool, 0444);

MODULE_PARM_DESC(enable_qos, "Enable Quality of Service support in the HCA (default: off)");



#define MLX4_GET(dest, source, offset)				      \

	do {							      \

		void *__p = (char *) (source) + (offset);	      \
@@ -737,6 +741,10 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param) 
	if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)

		*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);



	/* Enable QoS support if module parameter set */

	if (enable_qos)

		*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);



	/* QPC/EEC/CQC/EQC/RDMARC attributes */



	MLX4_PUT(inbox, param->qpc_base,      INIT_HCA_QPC_BASE_OFFSET);