diff options
Diffstat (limited to 'include/rdma/ib_verbs.h')
| -rw-r--r-- | include/rdma/ib_verbs.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 38a08dae49c4..4bdd898697cf 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1370,10 +1370,13 @@ struct ib_udata { struct ib_pd { u32 local_dma_lkey; + u32 flags; struct ib_device *device; struct ib_uobject *uobject; atomic_t usecnt; /* count all resources */ + u32 unsafe_global_rkey; + /* * Implementation details of the RDMA core, don't use in drivers: */ @@ -2506,8 +2509,23 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid, int ib_find_pkey(struct ib_device *device, u8 port_num, u16 pkey, u16 *index); -struct ib_pd *ib_alloc_pd(struct ib_device *device); +enum ib_pd_flags { + /* + * Create a memory registration for all memory in the system and place + * the rkey for it into pd->unsafe_global_rkey. This can be used by + * ULPs to avoid the overhead of dynamic MRs. + * + * This flag is generally considered unsafe and must only be used in + * extremly trusted environments. Every use of it will log a warning + * in the kernel log. + */ + IB_PD_UNSAFE_GLOBAL_RKEY = 0x01, +}; +struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, + const char *caller); +#define ib_alloc_pd(device, flags) \ + __ib_alloc_pd((device), (flags), __func__) void ib_dealloc_pd(struct ib_pd *pd); /** |