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authorAaron Young <aaron.young@oracle.com>2016-03-15 11:35:39 -0700
committerDavid S. Miller <davem@davemloft.net>2016-03-18 19:33:00 -0400
commit5d01fa0c6bd84ddf1339a3fadfefecd2c28d472e (patch)
tree8e98abe74385c1d2993da5294d692bfa41675d16 /arch/sparc/configs/sparc64_defconfig
parentldmvsw: Make sunvnet_common compatible with ldmvsw (diff)
downloadlinux-dev-5d01fa0c6bd84ddf1339a3fadfefecd2c28d472e.tar.xz
linux-dev-5d01fa0c6bd84ddf1339a3fadfefecd2c28d472e.zip
ldmvsw: Add ldmvsw.c driver code
Add ldmvsw.c driver Details: The ldmvsw driver very closely follows the sunvnet.c code and makes use of the sunvnet_common.c code for core functionality. A significant difference between sunvnet and ldmvsw driver is sunvnet creates a network interface for each vnet-port *parent* node in the MD while the ldmvsw driver creates a network interface for every vsw-port node in the Machine Description (MD). Therefore the netdev_priv() for sunvnet is a vnet structure while the netdev_priv() for ldmvsw is a vnet_port structure. Vnet_port structures allocated by ldmvsw have the vsw bit set. When finding the net_device associated with a port, the common code keys off this bit to use either the net_device found in the vnet_port or the net_device in the vnet structure (see the VNET_PORT_TO_NET_DEVICE() macro in sunvnet_common.h). This scheme allows the common code to work with both drivers with minimal changes. Similar to Xen, network interfaces created by the ldmvsw driver will always have a HW Addr (i.e. mac address) of FE:FF:FF:FF:FF:FF and each will be assigned the devname "vif<cfg_handle>.<port_id>" - where <cfg_handle> and <port_id> are a unique handle/port pair assigned to the associated vsw-port node in the MD. Signed-off-by: Aaron Young <aaron.young@oracle.com> Signed-off-by: Rashmi Narasimhan <rashmi.narasimhan@oracle.com> Reviewed-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Reviewed-by: Alexandre Chartre <Alexandre.Chartre@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--arch/sparc/configs/sparc64_defconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig
index 6b68f12f29db..04920ab8e292 100644
--- a/arch/sparc/configs/sparc64_defconfig
+++ b/arch/sparc/configs/sparc64_defconfig
@@ -102,6 +102,7 @@ CONFIG_SUNLANCE=m
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=m
CONFIG_SUNVNET=m
+CONFIG_LDMVSW=m
CONFIG_NET_PCI=y
CONFIG_E1000=m
CONFIG_E1000E=m