RDMA/rw: Add info regarding SG count failure

Print the supported and wanted values for SG count during signature
operation.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
1 file changed