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IB/mlx4: Implement FMRs

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Implement FMRs for mlx4.  This is an adaptation of code from mthca.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein
2007-08-01 12:29:05 +03:00
committed by Roland Dreier
parent d7bb58fb1c
commit 8ad11fb6b0
5 changed files with 300 additions and 0 deletions
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21
include/linux/mlx4/device.h
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@@ -214,6 +214,17 @@ struct mlx4_mr {
int enabled;
};
struct mlx4_fmr {
struct mlx4_mr mr;
struct mlx4_mpt_entry *mpt;
__be64 *mtts;
dma_addr_t dma_handle;
int max_pages;
int max_maps;
int maps;
u8 page_shift;
};
struct mlx4_uar {
unsigned long pfn;
int index;
@@ -337,4 +348,14 @@ int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
int npages, u64 iova, u32 *lkey, u32 *rkey);
int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
u32 *lkey, u32 *rkey);
int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
int mlx4_SYNC_TPT(struct mlx4_dev *dev);
#endif /* MLX4_DEVICE_H */