diff options
| author | John Fastabend <john.r.fastabend@intel.com> | 2012-09-18 00:01:12 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2012-10-29 22:31:49 -0700 |
| commit | b3343a2a2c95b3b7ed4f6596e860c4276ba46217 (patch) | |
| tree | 62eb61890a46176e7176b94ffcdccecfc95dd261 /net/bridge/br_sysfs_br.c | |
| parent | a30134053c3c4a14049037ee41b74ab3fe57cf9e (diff) | |
| download | lwn-b3343a2a2c95b3b7ed4f6596e860c4276ba46217.tar.gz lwn-b3343a2a2c95b3b7ed4f6596e860c4276ba46217.zip | |
net, ixgbe: handle link local multicast addresses in SR-IOV mode
In SR-IOV mode the PF driver acts as the uplink port and is
used to send control packets e.g. lldpad, stp, etc.
eth0.1 eth0.2 eth0
VF VF PF
| | | <-- stand-in for uplink
| | |
--------------------------
| Embedded Switch |
--------------------------
|
MAC <-- uplink
But the embedded switch is setup to forward multicast addresses
to all interfaces both VFs and PF and onto the physical link.
This results in reserved MAC addresses used by control protocols
to be forwarded over the switch onto the VF.
In the LLDP case the PF sends an LLDPDU and it is currently
being forwarded to all the VFs who then see the PF as a peer.
This is incorrect.
This patch adds the multicast addresses to the RAR table in the
hardware to prevent this behavior.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'net/bridge/br_sysfs_br.c')
| -rw-r--r-- | net/bridge/br_sysfs_br.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index c5c059333eab..e157b0dbcd82 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -14,6 +14,7 @@ #include <linux/capability.h> #include <linux/kernel.h> #include <linux/netdevice.h> +#include <linux/etherdevice.h> #include <linux/if_bridge.h> #include <linux/rtnetlink.h> #include <linux/spinlock.h> @@ -310,7 +311,7 @@ static ssize_t store_group_addr(struct device *d, /* Must be 01:80:c2:00:00:0X */ for (i = 0; i < 5; i++) - if (new_addr[i] != br_group_address[i]) + if (new_addr[i] != br_reserved_address[i]) return -EINVAL; if (new_addr[5] & ~0xf) |