diff options
| author | Jack Wang <jinpu.wang@cloud.ionos.com> | 2021-06-21 07:53:37 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-06-21 21:02:21 -0300 |
| commit | 2ece9ec62e5b276b4635d391c844b2ffcd10bbf1 (patch) | |
| tree | 58d39b74f06a75bc34d9f4a935dc98eab85a1440 /drivers/infiniband/ulp/rtrs/rtrs-clt.h | |
| parent | 630e438f040c3838206b5e6717b9b5c29edf3548 (diff) | |
RDMA/rtrs-clt: Write path fast memory registration
With fast memory registration in write path, we can reduce
the memory consumption by using less max_send_sge, support IO bigger
than 116 KB (29 segments * 4 KB) without splitting, and it also
make the IO path more symmetric.
To avoid some times MR reg failed, waiting for the invalidation to finish
before the new mr reg. Introduce a refcount, only finish the request
when both local invalidation and io reply are there.
Link: https://lore.kernel.org/r/20210621055340.11789-3-jinpu.wang@ionos.com
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Dima Stepanov <dmitrii.stepanov@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/ulp/rtrs/rtrs-clt.h')
| -rw-r--r-- | drivers/infiniband/ulp/rtrs/rtrs-clt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.h b/drivers/infiniband/ulp/rtrs/rtrs-clt.h index eed2a20ee9be..e276a2dfcf7c 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h @@ -116,6 +116,7 @@ struct rtrs_clt_io_req { int inv_errno; bool need_inv_comp; bool need_inv; + refcount_t ref; }; struct rtrs_rbuf { |