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Add support for setting InfininBand Node and Port GUID of a VF

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Add support for setting InfiniBand Node and Port GUID address
configuration of a VF when InfiniBand HCA are used with SR-IOV mode.

Signed-off-by: Parav Pandit <parav@mellanox.com>
This commit is contained in:
Parav Pandit 2018-03-20 17:37:08 -05:00 committed by Alessandro Boch
parent 41009d533b
commit aa0edbe0c9
2 changed files with 74 additions and 3 deletions
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44
link_linux.go
View File

@ -518,6 +518,50 @@ func (h *Handle) LinkSetVfTrust(link Link, vf int, state bool) error {
return err
}
// LinkSetVfNodeGUID sets the node GUID of a vf for the link.
// Equivalent to: `ip link set dev $link vf $vf node_guid $nodeguid`
func LinkSetVfNodeGUID(link Link, vf int, nodeguid net.HardwareAddr) error {
return pkgHandle.LinkSetVfGUID(link, vf, nodeguid, nl.IFLA_VF_IB_NODE_GUID)
}
// LinkSetVfPortGUID sets the port GUID of a vf for the link.
// Equivalent to: `ip link set dev $link vf $vf port_guid $portguid`
func LinkSetVfPortGUID(link Link, vf int, portguid net.HardwareAddr) error {
return pkgHandle.LinkSetVfGUID(link, vf, portguid, nl.IFLA_VF_IB_PORT_GUID)
}
// LinkSetVfGUID sets the node or port GUID of a vf for the link.
func (h *Handle) LinkSetVfGUID(link Link, vf int, vfGuid net.HardwareAddr, guidType int) error {
var err error
var guid uint64
buf := bytes.NewBuffer(vfGuid)
err = binary.Read(buf, binary.LittleEndian, &guid)
if err != nil {
return err
}
base := link.Attrs()
h.ensureIndex(base)
req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK)
msg := nl.NewIfInfomsg(unix.AF_UNSPEC)
msg.Index = int32(base.Index)
req.AddData(msg)
data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil)
info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil)
vfmsg := nl.VfGUID{
Vf: uint32(vf),
GUID: guid,
}
nl.NewRtAttrChild(info, guidType, vfmsg.Serialize())
req.AddData(data)
_, err = req.Execute(unix.NETLINK_ROUTE, 0)
return err
}
// LinkSetMaster sets the master of the link device.
// Equivalent to: `ip link set $link master $master`
func LinkSetMaster(link Link, master *Bridge) error {

33
nl/link_linux.go
View File

@ -217,9 +217,11 @@ const (
IFLA_VF_RSS_QUERY_EN /* RSS Redirection Table and Hash Key query
* on/off switch
*/
IFLA_VF_STATS /* network device statistics */
IFLA_VF_TRUST /* Trust state of VF */
IFLA_VF_MAX = IFLA_VF_TRUST
IFLA_VF_STATS /* network device statistics */
IFLA_VF_TRUST /* Trust state of VF */
IFLA_VF_IB_NODE_GUID /* VF Infiniband node GUID */
IFLA_VF_IB_PORT_GUID /* VF Infiniband port GUID */
IFLA_VF_MAX = IFLA_VF_IB_PORT_GUID
)
const (
@ -248,6 +250,7 @@ const (
SizeofVfLinkState = 0x08
SizeofVfRssQueryEn = 0x08
SizeofVfTrust = 0x08
SizeofVfGUID = 0x10
)
// struct ifla_vf_mac {
@ -430,6 +433,30 @@ func (msg *VfTrust) Serialize() []byte {
return (*(*[SizeofVfTrust]byte)(unsafe.Pointer(msg)))[:]
}
// struct ifla_vf_guid {
// __u32 vf;
// __u32 rsvd;
// __u64 guid;
// };
type VfGUID struct {
Vf uint32
Rsvd uint32
GUID uint64
}
func (msg *VfGUID) Len() int {
return SizeofVfGUID
}
func DeserializeVfGUID(b []byte) *VfGUID {
return (*VfGUID)(unsafe.Pointer(&b[0:SizeofVfGUID][0]))
}
func (msg *VfGUID) Serialize() []byte {
return (*(*[SizeofVfGUID]byte)(unsafe.Pointer(msg)))[:]
}
const (
XDP_FLAGS_UPDATE_IF_NOEXIST = 1 << iota
XDP_FLAGS_SKB_MODE