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IB/mlx4: Add support for XRC domains

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Support creating and destroying XRC domains.  Any sharing of the XRCD
is managed above the low-level driver.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sean Hefty
2011-06-02 09:01:33 -07:00
committed by Roland Dreier
parent 2622e18ef4
commit 012a8ff577
8 changed files with 134 additions and 1 deletions
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5
include/linux/mlx4/device.h
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@@ -61,6 +61,7 @@ enum {
MLX4_DEV_CAP_FLAG_RC = 1LL << 0,
MLX4_DEV_CAP_FLAG_UC = 1LL << 1,
MLX4_DEV_CAP_FLAG_UD = 1LL << 2,
MLX4_DEV_CAP_FLAG_XRC = 1LL << 3,
MLX4_DEV_CAP_FLAG_SRQ = 1LL << 6,
MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1LL << 7,
MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1LL << 8,
@@ -256,6 +257,8 @@ struct mlx4_caps {
int num_qp_per_mgm;
int num_pds;
int reserved_pds;
int max_xrcds;
int reserved_xrcds;
int mtt_entry_sz;
u32 max_msg_sz;
u32 page_size_cap;
@@ -499,6 +502,8 @@ static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn);
void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn);
int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);