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mlx4_core: Add module parameter to enable QoS support

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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: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein 2008-07-22 14:19:37 -07:00 committed by Roland Dreier
parent d35cb360c2
commit 51f5f0ee22
1 changed files with 8 additions and 0 deletions
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8
drivers/net/mlx4/fw.c
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@ -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);