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Message-Id: <20180528100328.938061334@linuxfoundation.org>
Date: Mon, 28 May 2018 11:59:59 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Stephen Hemminger <sthemmin@...rosoft.com>,
"David S. Miller" <davem@...emloft.net>,
Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 214/496] hv_netvsc: propagate rx filters to VF
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stephen Hemminger <stephen@...workplumber.org>
[ Upstream commit bee9d41b37ea6b1f860e5bc0989cf1cf1d7e6ab3 ]
The netvsc device should propagate filters to the SR-IOV VF
device (if present). The flags also need to be propagated to the
VF device as well. This only really matters on local Hyper-V
since Azure does not support multiple addresses.
Signed-off-by: Stephen Hemminger <sthemmin@...rosoft.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/net/hyperv/netvsc_drv.c | 40 ++++++++++++++++++++++++++++++++++++----
1 file changed, 36 insertions(+), 4 deletions(-)
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -66,10 +66,36 @@ static int debug = -1;
module_param(debug, int, S_IRUGO);
MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
-static void netvsc_set_multicast_list(struct net_device *net)
+static void netvsc_change_rx_flags(struct net_device *net, int change)
{
- struct net_device_context *net_device_ctx = netdev_priv(net);
- struct netvsc_device *nvdev = rtnl_dereference(net_device_ctx->nvdev);
+ struct net_device_context *ndev_ctx = netdev_priv(net);
+ struct net_device *vf_netdev = rtnl_dereference(ndev_ctx->vf_netdev);
+ int inc;
+
+ if (!vf_netdev)
+ return;
+
+ if (change & IFF_PROMISC) {
+ inc = (net->flags & IFF_PROMISC) ? 1 : -1;
+ dev_set_promiscuity(vf_netdev, inc);
+ }
+
+ if (change & IFF_ALLMULTI) {
+ inc = (net->flags & IFF_ALLMULTI) ? 1 : -1;
+ dev_set_allmulti(vf_netdev, inc);
+ }
+}
+
+static void netvsc_set_rx_mode(struct net_device *net)
+{
+ struct net_device_context *ndev_ctx = netdev_priv(net);
+ struct net_device *vf_netdev = rtnl_dereference(ndev_ctx->vf_netdev);
+ struct netvsc_device *nvdev = rtnl_dereference(ndev_ctx->nvdev);
+
+ if (vf_netdev) {
+ dev_uc_sync(vf_netdev, net);
+ dev_mc_sync(vf_netdev, net);
+ }
rndis_filter_update(nvdev);
}
@@ -1582,7 +1608,8 @@ static const struct net_device_ops devic
.ndo_open = netvsc_open,
.ndo_stop = netvsc_close,
.ndo_start_xmit = netvsc_start_xmit,
- .ndo_set_rx_mode = netvsc_set_multicast_list,
+ .ndo_change_rx_flags = netvsc_change_rx_flags,
+ .ndo_set_rx_mode = netvsc_set_rx_mode,
.ndo_change_mtu = netvsc_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = netvsc_set_mac_addr,
@@ -1814,6 +1841,11 @@ static void __netvsc_vf_setup(struct net
netdev_warn(vf_netdev,
"unable to change mtu to %u\n", ndev->mtu);
+ /* set multicast etc flags on VF */
+ dev_change_flags(vf_netdev, ndev->flags | IFF_SLAVE);
+ dev_uc_sync(vf_netdev, ndev);
+ dev_mc_sync(vf_netdev, ndev);
+
if (netif_running(ndev)) {
ret = dev_open(vf_netdev);
if (ret)
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