There are several race conditions discovered in the current rdma_rxe
driver. They mostly relate to races between normal operations and
destroying objects. This patch series
- Makes several minor cleanups in rxe_pool.[ch]
- Replaces the red-black trees currently used by xarrays for indices
- Simplifies the API for keyed objects
- Corrects several reference counting errors
- Adds wait for completions to the paths in verbs APIs which destroy
objects.
This patch series applies cleanly to current for-next.
commit 0a0575a12e31 ("RDMA/bnxt_re: Fix endianness warning for req.pkey")
Signed-off-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
---
v7
Corrected issues reported by Jason Gunthorpe
Link: https://lore.kernel.org/linux-rdma/20211207190947.GH6385@xxxxxxxxxx/
Link: https://lore.kernel.org/linux-rdma/20211207191857.GI6385@xxxxxxxxxx/
Link: https://lore.kernel.org/linux-rdma/20211207192824.GJ6385@xxxxxxxxxx/
v6
Fixed a kzalloc flags bug.
Fixed comment bug reported by 'Kernel Test Robot'.
Changed type of rxe_pool.c in __rxe_fini().
v5
Removed patches already accepted into for-next and addressed comments
from Jason Gunthorpe.
v4
Restructured patch series to change to xarray earlier which
greatly simplified the changes.
Rebased to current for-next
v3
Changed rxe_alloc to use GFP_KERNEL
Addressed other comments by Jason Gunthorp
Merged the previous 06/10 and 07/10 patches into one since they overlapped
Added some minor cleanups as 10/10
v2
Rebased to current for-next.
Added 4 additional patches
Bob Pearson (8):
RDMA/rxe: Replace RB tree by xarray for indexes
RDMA/rxe: Reverse the sense of RXE_POOL_NO_ALLOC
RDMA/rxe: Cleanup pool APIs for keyed objects
RDMA/rxe: Fix ref error in rxe_av.c
RDMA/rxe: Replace mr by rkey in responder resources
RDMA/rxe: Minor cleanups in rxe_pool.c/rxe_pool.h
RDMA/rxe: Replace rxe_alloc by kzalloc for rxe_mc_elem
RDMA/rxe: Add wait for completion to obj destruct
drivers/infiniband/sw/rxe/rxe.c | 101 +----
drivers/infiniband/sw/rxe/rxe_av.c | 19 +-
drivers/infiniband/sw/rxe/rxe_loc.h | 10 +-
drivers/infiniband/sw/rxe/rxe_mcast.c | 71 ++--
drivers/infiniband/sw/rxe/rxe_mr.c | 3 +-
drivers/infiniband/sw/rxe/rxe_mw.c | 7 +-
drivers/infiniband/sw/rxe/rxe_net.c | 17 +-
drivers/infiniband/sw/rxe/rxe_pool.c | 507 +++++++++++---------------
drivers/infiniband/sw/rxe/rxe_pool.h | 110 ++----
drivers/infiniband/sw/rxe/rxe_qp.c | 10 +-
drivers/infiniband/sw/rxe/rxe_req.c | 55 +--
drivers/infiniband/sw/rxe/rxe_resp.c | 125 +++++--
drivers/infiniband/sw/rxe/rxe_verbs.c | 72 ++--
drivers/infiniband/sw/rxe/rxe_verbs.h | 3 -
14 files changed, 489 insertions(+), 621 deletions(-)
--
2.32.0
