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| author | Jeff Layton <jlayton@redhat.com> | 2017-02-24 13:25:23 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2017-02-24 16:55:46 -0500 |
| commit | 362142b25843fb059941aaa01b91501d5d8652cc (patch) | |
| tree | d8069aae1c1aa73a17ee47ec0df3391cb01fdee2 /include/linux/sunrpc | |
| parent | 05a45a2db42543c5f1a32e08f545aebbd7cb4790 (diff) | |
| download | linux-next-362142b25843fb059941aaa01b91501d5d8652cc.tar.gz | |
sunrpc: flag transports as having congestion control
NFSv4 requires a transport protocol with congestion control in most
cases.
On an IP network, that means that NFSv4 over UDP should be forbidden.
The situation with RDMA is a bit more nuanced, but most RDMA transports
are suitable for this. For now, we assume that all RDMA transports are
suitable, but we may need to revise that at some point.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/svc_xprt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h index 7440290f64ac..ddb7f94a9d06 100644 --- a/include/linux/sunrpc/svc_xprt.h +++ b/include/linux/sunrpc/svc_xprt.h @@ -67,6 +67,7 @@ struct svc_xprt { #define XPT_CACHE_AUTH 11 /* cache auth info */ #define XPT_LOCAL 12 /* connection from loopback interface */ #define XPT_KILL_TEMP 13 /* call xpo_kill_temp_xprt before closing */ +#define XPT_CONG_CTRL 14 /* has congestion control */ struct svc_serv *xpt_server; /* service for transport */ atomic_t xpt_reserved; /* space on outq that is rsvd */ |