svcrdma: Define maximum number of backchannel requests

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Extra resources for handling backchannel requests have to be
pre-allocated when a transport instance is created. Set up
additional fields in svcxprt_rdma to track these resources.

The max_requests fields are elements of the RPC-over-RDMA
protocol, so they should be u32. To ensure that unsigned
arithmetic is used everywhere, some other fields in the
svcxprt_rdma struct are updated.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Chuck Lever 2016-01-07 14:50:02 -05:00 • committed by Doug Ledford

parent ba986c96f9

commit 03fe993153

3 changed files with 28 additions and 15 deletions

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13

include/linux/sunrpc/svc_rdma.h

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6

net/sunrpc/xprtrdma/svc_rdma.c

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24

net/sunrpc/xprtrdma/svc_rdma_transport.c

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