@@ -423,19 +423,6 @@ Note that the
option may also be used by some pNFS drivers to decide how many
connections to set up to the data servers.
.TP 1.5i
-.BR max_connect= n
-While
-.BR nconnect
-option sets a limit on the number of connections that can be established
-to a given server IP,
-.BR max_connect
-option allows the user to specify maximum number of connections to different
-server IPs that belong to the same NFSv4.1+ server (session trunkable
-connections) up to a limit of 16. When client discovers that it established
-a client ID to an already existing server, instead of dropping the newly
-created network transport, the client will add this new connection to the
-list of available transports for that RPC client.
-.TP 1.5i
.BR rdirplus " / " nordirplus
Selects whether to use NFS v3 or v4 READDIRPLUS requests.
If this option is not specified, the NFS client uses READDIRPLUS requests
@@ -1000,6 +987,32 @@ when it identifies itself via a traditional identification string.
.IP
This mount option has no effect with NFSv4 minor versions newer than zero,
which always use TSM-compatible client identification strings.
+.TP 1.5i
+.BR max_connect= n
+While
+.BR nconnect
+option sets a limit on the number of connections that can be established
+to a given server IP,
+.BR max_connect
+option allows the user to specify maximum number of connections to different
+server IPs that belong to the same NFSv4.1+ server (session trunkable
+connections) up to a limit of 16. When client discovers that it established
+a client ID to an already existing server, instead of dropping the newly
+created network transport, the client will add this new connection to the
+list of available transports for that RPC client.
+.TP 1.5i
+.BR trunkdiscovery " / " notrunkdiscovery
+When the client discovers a new filesystem on a NFSv4.1+ server, the
+.BR trunkdiscovery
+mount option will cause it to send a GETATTR for the fs_locations attribute.
+If is receives a non-zero length reply, it will iterate through the response,
+and for each server location it will establish a connection, send an
+EXCHANGE_ID, and test for session trunking. If the trunking test succeeds,
+the connection will be added to the existing set of transports for the server,
+subject to the limit specified by the
+.BR max_connect
+option. The default is
+.BR notrunkdiscovery .
.SH nfs4 FILE SYSTEM TYPE
The
.BR nfs4
Also, move the documentation for max_connect to the section for NFSv4-specific options. Signed-off-by: Scott Mayhew <smayhew@redhat.com> --- utils/mount/nfs.man | 39 ++++++++++++++++++++++++++------------- 1 file changed, 26 insertions(+), 13 deletions(-)