xprtrdma: Eliminate per-transport "max pages"

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To support device hotplug and migrating a connection between devices
of different capabilities, we have to guarantee that all in-kernel
devices can support the same max NFS payload size (1 megabyte).

This means that possibly one or two in-tree devices are no longer
supported for NFS/RDMA because they cannot support 1MB rsize/wsize.
The only one I confirmed was cxgb3, but it has already been removed
from the kernel.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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This commit is contained in:

Chuck Lever 2020-01-03 11:56:43 -05:00 • committed by Anna Schumaker

parent 7581d90109

commit 18d065a5d4

5 changed files with 23 additions and 40 deletions

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40

net/sunrpc/xprtrdma/frwr_ops.c

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2

net/sunrpc/xprtrdma/rpc_rdma.c

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14

net/sunrpc/xprtrdma/transport.c

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4

net/sunrpc/xprtrdma/verbs.c

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3

net/sunrpc/xprtrdma/xprt_rdma.h

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