[PATCH for-next v6 2/6] RDMA/rxe: Change AH objects to indexed
From: Bob Pearson <hidden>
Date: 2021-10-07 20:41:34
Subsystem:
infiniband subsystem, soft-roce driver (rxe), the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Zhu Yanjun, Linus Torvalds
Make changes to rxe_param.h and rxe_pool.c to allow indexing of AH objects. Valid indices are non-zero so older providers can be detected. Signed-off-by: Bob Pearson <redacted> --- v6: Reduced the max number of AH to 32K to limit the size of the index bit map. --- drivers/infiniband/sw/rxe/rxe_param.h | 4 +++- drivers/infiniband/sw/rxe/rxe_pool.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index aeffaef8f381..918270e34a35 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h@@ -69,7 +69,9 @@ enum rxe_device_param { RXE_MAX_MCAST_GRP = 8192, RXE_MAX_MCAST_QP_ATTACH = 56, RXE_MAX_TOT_MCAST_QP_ATTACH = 0x70000, - RXE_MAX_AH = DEFAULT_MAX_VALUE, + RXE_MAX_AH = (1<<15) - 1, /* 32Ki - 1 */ + RXE_MIN_AH_INDEX = 1, + RXE_MAX_AH_INDEX = RXE_MAX_AH, RXE_MAX_SRQ_WR = DEFAULT_MAX_VALUE, RXE_MIN_SRQ_WR = 1, RXE_MAX_SRQ_SGE = 27,
diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c b/drivers/infiniband/sw/rxe/rxe_pool.c
index ffa8420b4765..7b4cb46edfd9 100644
--- a/drivers/infiniband/sw/rxe/rxe_pool.c
+++ b/drivers/infiniband/sw/rxe/rxe_pool.c@@ -26,7 +26,9 @@ struct rxe_type_info rxe_type_info[RXE_NUM_TYPES] = { .name = "rxe-ah", .size = sizeof(struct rxe_ah), .elem_offset = offsetof(struct rxe_ah, pelem), - .flags = RXE_POOL_NO_ALLOC, + .flags = RXE_POOL_INDEX | RXE_POOL_NO_ALLOC, + .min_index = RXE_MIN_AH_INDEX, + .max_index = RXE_MAX_AH_INDEX, }, [RXE_TYPE_SRQ] = { .name = "rxe-srq",
--
2.30.2