NFS_CWNDSCALE
#define NFS_MAXCWND (NFS_CWNDSCALE * 32)
(NFS_CWNDSCALE * NFS_CWNDSCALE +
nmp->nm_sent -= NFS_CWNDSCALE;
nmp->nm_sent += NFS_CWNDSCALE;
nmp->nm_sent -= NFS_CWNDSCALE;
if (nmp->nm_cwnd < NFS_CWNDSCALE)
nmp->nm_cwnd = NFS_CWNDSCALE;
nmp->nm_sent += NFS_CWNDSCALE;