LU-10391 lnet: support setting LND timeouts

[fs/lustre-release.git] / lnet / klnds / gnilnd / gnilnd.c

diff --git a/lnet/klnds/gnilnd/gnilnd.c b/lnet/klnds/gnilnd/gnilnd.c
index c320d7d..375b87d 100644 (file)
--- a/lnet/klnds/gnilnd/gnilnd.c
+++ b/lnet/klnds/gnilnd/gnilnd.c
@@ -27,7 +27,6 @@
 static int
 kgnilnd_nl_get(int cmd, struct sk_buff *msg, int type, void *data)
 {
-       struct lnet_ioctl_config_gnilnd_tunables *tuns;
        struct lnet_ni *ni = data;
 
        if (!ni || !msg)
@@ -36,12 +35,31 @@ kgnilnd_nl_get(int cmd, struct sk_buff *msg, int type, void *data)
        if (cmd != LNET_CMD_NETS || type != LNET_NET_LOCAL_NI_ATTR_LND_TUNABLES)
                return -EOPNOTSUPP;
 
-       tuns = &ni->ni_lnd_tunables.lnd_tun_u.lnd_gni;
        nla_put_u32(msg, LNET_NET_GNILND_TUNABLES_ATTR_LND_TIMEOUT,
                    kgnilnd_timeout());
        return 0;
 }
 
+static int
+kgnilnd_nl_set(int cmd, struct nlattr *attr, int type, void *data)
+{
+       struct lnet_ni *ni = data;
+
+       if (cmd != LNET_CMD_NETS)
+               return -EOPNOTSUPP;
+
+       if (nla_type(attr) != LN_SCALAR_ATTR_INT_VALUE)
+               return -EINVAL;
+
+       if (type == LNET_NET_GNILND_TUNABLES_ATTR_LND_TIMEOUT) {
+               s64 timeout = nla_get_s64(attr);
+
+               ni->ni_lnd_tunables.lnd_tun_u.lnd_gni.lnd_timeout = timeout;
+       }
+
+       return 0;
+}
+
 /* Primary entry points from LNET.  There are no guarantees against reentrance. */
 const struct lnet_lnd the_kgnilnd = {
        .lnd_type       = GNILND,
@@ -52,6 +70,7 @@ const struct lnet_lnd the_kgnilnd = {
        .lnd_recv       = kgnilnd_recv,
        .lnd_eager_recv = kgnilnd_eager_recv,
        .lnd_nl_get     = kgnilnd_nl_get,
+       .lnd_nl_set     = kgnilnd_nl_set,
 };
 
 kgn_data_t      kgnilnd_data;