RPCRDMA_V1_DEF_INLINE_SIZE
RPCRDMA_PULLUP_THRESH = RPCRDMA_V1_DEF_INLINE_SIZE >> 1,
RPCRDMA_V1_DEF_INLINE_SIZE * 2);
rsize = RPCRDMA_V1_DEF_INLINE_SIZE;
wsize = RPCRDMA_V1_DEF_INLINE_SIZE;