From: Alessandro Rubini Date: Fri, 7 Aug 2009 11:59:16 +0000 (+0200) Subject: nfs: accept CONFIG_NFS_READ_SIZE from config file X-Git-Tag: v2009.11-rc1~225^2~33^2~5 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=bd931ca61c84039241d438ade4a9755ae0e5372f;p=oweals%2Fu-boot.git nfs: accept CONFIG_NFS_READ_SIZE from config file To take advantage of defragmented packets, the config file can define CONFIG_NFS_READ_SIZE to override the 1kB default. No support is there for an environment variable by now. Signed-off-by: Alessandro Rubini Signed-off-by: Ben Warren --- diff --git a/net/nfs.h b/net/nfs.h index 712afa089a..de8a0c64c0 100644 --- a/net/nfs.h +++ b/net/nfs.h @@ -38,8 +38,14 @@ /* Block size used for NFS read accesses. A RPC reply packet (including all * headers) must fit within a single Ethernet frame to avoid fragmentation. - * Chosen to be a power of two, as most NFS servers are optimized for this. */ -#define NFS_READ_SIZE 1024 + * However, if CONFIG_IP_DEFRAG is set, the config file may want to use a + * bigger value. In any case, most NFS servers are optimized for a power of 2. + */ +#ifdef CONFIG_NFS_READ_SIZE +#define NFS_READ_SIZE CONFIG_NFS_READ_SIZE +#else +#define NFS_READ_SIZE 1024 /* biggest power of two that fits Ether frame */ +#endif #define NFS_MAXLINKDEPTH 16