IB/mlx4: Add support for XRC domains
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>
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 53ef894..6a3478d 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -61,6 +61,7 @@
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 @@
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 @@
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);