s3:libsmb: Set a max charge for SMB2 connections

Set a max charge for SMB2 connections so that larger request sizes can
be used and more requests can be in flight.

Signed-off-by: Ross Lagerwall <rosslagerwall@gmail.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Thu Aug 21 17:31:11 CEST 2014 on sn-devel-104

Bug: https://bugzilla.samba.org/show_bug.cgi?id=10778
libsmbclient with SMB2 doesn't pipeline or use large blocks

diff --git a/source3/libsmb/libsmb_server.c b/source3/libsmb/libsmb_server.c
index 3f86d506d720d28ff873598feec969e9618c1bcc..fc77e38c3c1dcb4651ea87fe7cead5290df5edc8 100644 (file)
--- a/source3/libsmb/libsmb_server.c
+++ b/source3/libsmb/libsmb_server.c
@@ -455,6 +455,11 @@ SMBC_server_internal(TALLOC_CTX *ctx,
                return NULL;
        }
 
+       if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
+               /* Ensure we ask for some initial credits. */
+               smb2cli_conn_set_max_credits(c->conn, DEFAULT_SMB2_MAX_CREDITS);
+       }
+
         username_used = *pp_username;
 
        if (!NT_STATUS_IS_OK(cli_session_setup(c, username_used,