mirror of
https://github.com/adulau/aha.git
synced 2024-12-29 04:06:22 +00:00
c06b540a54
This file implements the RDMA transport sendto function. A RPC reply on an RDMA transport consists of some number of RDMA_WRITE requests followed by an RDMA_SEND request. The sendto function parses the ONCRPC RDMA reply header to determine how to send the reply back to the client. The send queue is sized so as to be able to send complete replies for requests in most cases. In the event that there are not enough SQ WR slots to reply, e.g. big data, the send will block the NFSD thread. The I/O callback functions in svc_rdma_transport.c that reap WR completions wake any waiters blocked on the SQ. In general, the goal is not to block NFSD threads and the has_wspace method stall requests when the SQ is nearly full. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> |
||
|---|---|---|
| .. | ||
| Makefile | ||
| rpc_rdma.c | ||
| svc_rdma.c | ||
| svc_rdma_recvfrom.c | ||
| svc_rdma_sendto.c | ||
| svc_rdma_transport.c | ||
| transport.c | ||
| verbs.c | ||
| xprt_rdma.h | ||