diff options
| author | Bob Pearson <rpearsonhpe@gmail.com> | 2023-05-31 00:13:34 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-06-09 18:18:53 +0200 |
| commit | 86a3fb55bc4fb2ea0c276d56f03335574a694ee4 (patch) | |
| tree | f2572dc84e0c2ae93df1751c4c88c31289a0992c /drivers/infiniband/sw | |
| parent | RDMA/rxe: Introduce rxe access supported flags (diff) | |
| download | linux-86a3fb55bc4fb2ea0c276d56f03335574a694ee4.tar.xz linux-86a3fb55bc4fb2ea0c276d56f03335574a694ee4.zip | |
RDMA/rxe: Let rkey == lkey for local access
In order to conform to other drivers stop using rkey == 0 as an indication
that there are no remote access flags set. Set rkey == lkey by default
for all MRs.
Link: https://lore.kernel.org/r/20230530221334.89432-6-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/sw')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_mr.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c index b3bc4ac5fedd..f54042e9aeb2 100644 --- a/drivers/infiniband/sw/rxe/rxe_mr.c +++ b/drivers/infiniband/sw/rxe/rxe_mr.c @@ -47,16 +47,15 @@ int mr_check_range(struct rxe_mr *mr, u64 iova, size_t length) static void rxe_mr_init(int access, struct rxe_mr *mr) { - u32 lkey = mr->elem.index << 8 | rxe_get_next_key(-1); - u32 rkey = (access & RXE_ACCESS_REMOTE) ? lkey : 0; + u32 key = mr->elem.index << 8 | rxe_get_next_key(-1); /* set ibmr->l/rkey and also copy into private l/rkey * for user MRs these will always be the same * for cases where caller 'owns' the key portion * they may be different until REG_MR WQE is executed. */ - mr->lkey = mr->ibmr.lkey = lkey; - mr->rkey = mr->ibmr.rkey = rkey; + mr->lkey = mr->ibmr.lkey = key; + mr->rkey = mr->ibmr.rkey = key; mr->access = access; mr->ibmr.page_size = PAGE_SIZE; @@ -640,6 +639,7 @@ int rxe_invalidate_mr(struct rxe_qp *qp, u32 key) { struct rxe_dev *rxe = to_rdev(qp->ibqp.device); struct rxe_mr *mr; + int remote; int ret; mr = rxe_pool_get_index(&rxe->mr_pool, key >> 8); @@ -649,9 +649,10 @@ int rxe_invalidate_mr(struct rxe_qp *qp, u32 key) goto err; } - if (mr->rkey ? (key != mr->rkey) : (key != mr->lkey)) { + remote = mr->access & RXE_ACCESS_REMOTE; + if (remote ? (key != mr->rkey) : (key != mr->lkey)) { rxe_dbg_mr(mr, "wr key (%#x) doesn't match mr key (%#x)\n", - key, (mr->rkey ? mr->rkey : mr->lkey)); + key, (remote ? mr->rkey : mr->lkey)); ret = -EINVAL; goto err_drop_ref; } @@ -711,7 +712,7 @@ int rxe_reg_fast_mr(struct rxe_qp *qp, struct rxe_send_wqe *wqe) mr->access = access; mr->lkey = key; - mr->rkey = (access & RXE_ACCESS_REMOTE) ? key : 0; + mr->rkey = key; mr->ibmr.iova = wqe->wr.wr.reg.mr->iova; mr->state = RXE_MR_STATE_VALID; |