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| author | Bob Pearson <rpearsonhpe@gmail.com> | 2022-03-03 18:07:58 -0600 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-03-15 20:49:56 -0300 |
| commit | 8a1a0be894da0d06bfbb496cc2dc3057fa83e103 (patch) | |
| tree | 112aff7f000b12507aa7f66bf522b703a2aca4fd /drivers/infiniband/sw/rxe/rxe_verbs.h | |
| parent | 63221acb0c63141cc7650f8eefb148337061e6db (diff) | |
| download | linux-8a1a0be894da0d06bfbb496cc2dc3057fa83e103.tar.gz linux-8a1a0be894da0d06bfbb496cc2dc3057fa83e103.tar.bz2 linux-8a1a0be894da0d06bfbb496cc2dc3057fa83e103.zip | |
RDMA/rxe: Replace mr by rkey in responder resources
Currently rxe saves a copy of MR in responder resources for RDMA reads.
Since the responder resources are never freed just over written if more
are needed this MR may not have a reference freed until the QP is
destroyed. This patch uses the rkey instead of the MR and on subsequent
packets of a multipacket read reply message it looks up the MR from the
rkey for each packet. This makes it possible for a user to deregister an
MR or unbind a MW on the fly and get correct behaviour.
Link: https://lore.kernel.org/r/20220304000808.225811-3-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/rxe/rxe_verbs.h')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_verbs.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h index 6b15251ff67a..e7eff1ca75e9 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -157,7 +157,6 @@ struct resp_res { struct sk_buff *skb; } atomic; struct { - struct rxe_mr *mr; u64 va_org; u32 rkey; u32 length; |