CC+ Xiao On 11/11/2022 12:30, Li Zhijian wrote: > Background: > iova_to_addr just lookups at the map which is constructed and manages the > relationship between iova to vaddr when MR is registering. By conventional, > we should map the userspace address(iova) every time we want to access it. > Please refer to the previous discussion[1][2] for more details. > > Refactor: > In this refactoring, we will do the map every time before the user really > accesses it. > > patch1,3,5 are cleanup and preparation. > patch2 is to make all subroutines accessing the iova use iova_to_vaddr() API. > patch4 is the refactor. > > [1]: https://www.spinics.net/lists/linux-rdma/msg113206.html > [2]: https://lore.kernel.org/all/20220118123505.GF84788@xxxxxxxxxx/ > > Li Zhijian (5): > RDMA/rxe: Remove rxe_phys_buf.size > RDMA/rxe: use iova_to_vaddr to transform iova for rxe_mr_copy > RDMA/rxe: iova_to_vaddr cleanup > RDMA/rxe: refactor iova_to_vaddr > RDMA/rxe: Rename iova_to_vaddr to rxe_map_iova > > drivers/infiniband/sw/rxe/rxe_loc.h | 3 +- > drivers/infiniband/sw/rxe/rxe_mr.c | 128 +++++++++++--------------- > drivers/infiniband/sw/rxe/rxe_resp.c | 5 +- > drivers/infiniband/sw/rxe/rxe_verbs.c | 1 - > drivers/infiniband/sw/rxe/rxe_verbs.h | 6 +- > 5 files changed, 62 insertions(+), 81 deletions(-) >
