From 0008b84ea9afe6ec255c09044e8090cb76babc80 Mon Sep 17 00:00:00 2001 From: Artemy Kovalyov Date: Wed, 5 Apr 2017 09:23:57 +0300 Subject: IB/umem: Add support to huge ODP Add IB_ACCESS_HUGETLB ib_reg_mr flag. Hugetlb region registered with this flag will use single translation entry per huge page. Signed-off-by: Artemy Kovalyov Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- include/rdma/ib_umem_odp.h | 6 ++++-- include/rdma/ib_verbs.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'include/rdma') diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h index 542cd8b3414c..fb67554aabd6 100644 --- a/include/rdma/ib_umem_odp.h +++ b/include/rdma/ib_umem_odp.h @@ -84,7 +84,8 @@ struct ib_umem_odp { #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING -int ib_umem_odp_get(struct ib_ucontext *context, struct ib_umem *umem); +int ib_umem_odp_get(struct ib_ucontext *context, struct ib_umem *umem, + int access); struct ib_umem *ib_alloc_odp_umem(struct ib_ucontext *context, unsigned long addr, size_t size); @@ -154,7 +155,8 @@ static inline int ib_umem_mmu_notifier_retry(struct ib_umem *item, #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ static inline int ib_umem_odp_get(struct ib_ucontext *context, - struct ib_umem *umem) + struct ib_umem *umem, + int access) { return -EINVAL; } diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 91686d2e94dd..ab2dc5284e8c 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1339,6 +1339,7 @@ enum ib_access_flags { IB_ACCESS_MW_BIND = (1<<4), IB_ZERO_BASED = (1<<5), IB_ACCESS_ON_DEMAND = (1<<6), + IB_ACCESS_HUGETLB = (1<<7), }; /* -- cgit v1.2.1