Commit 87d8069f authored by Moni Shoua's avatar Moni Shoua Committed by Leon Romanovsky
Browse files

IB/core: Add interface to advise_mr for kernel users 



Allow ULPs to call advise_mr, so they can control ODP regions
in the same way as user space applications.

Signed-off-by: default avatarMoni Shoua <monis@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
parent 33006bd4

drivers/infiniband/core/verbs.c

+11 −0
Original line number Diff line number Diff line
@@ -2020,6 +2020,17 @@ struct ib_mr *ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 
}

EXPORT_SYMBOL(ib_reg_user_mr);



int ib_advise_mr(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice,

		 u32 flags, struct ib_sge *sg_list, u32 num_sge)

{

	if (!pd->device->ops.advise_mr)

		return -EOPNOTSUPP;



	return pd->device->ops.advise_mr(pd, advice, flags, sg_list, num_sge,

					 NULL);

}

EXPORT_SYMBOL(ib_advise_mr);



int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata)

{

	struct ib_pd *pd = mr->pd;

include/rdma/ib_verbs.h

+3 −0
Original line number Diff line number Diff line
@@ -4159,6 +4159,9 @@ static inline void ib_dma_free_coherent(struct ib_device *dev, 
struct ib_mr *ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,

			     u64 virt_addr, int mr_access_flags);



/* ib_advise_mr -  give an advice about an address range in a memory region */

int ib_advise_mr(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice,

		 u32 flags, struct ib_sge *sg_list, u32 num_sge);

/**

 * ib_dereg_mr_user - Deregisters a memory region and removes it from the

 *   HCA translation table.