Commit 4b889474 authored by Michal Swiatkowski's avatar Michal Swiatkowski Committed by Tony Nguyen

ice: get switch id on switchdev devices

Switch id should be the same for each netdevice on a driver.
The id must be unique between devices on the same system, but
does not need to be unique between devices on different systems.

The switch id is used to locate ports on a switch and to know if
aggregated ports belong to the same switch.

To meet this requirements, use pci_get_dsn as switch id value, as
this is unique value for each devices on the same system.

Implementing switch id is needed by automatic tools for kubernetes.

Set switch id by setting devlink port attribiutes and calling
devlink_port_attrs_set while creating pf (for uplink) and vf
(for representator) devlink port.

To get switch id (in switchdev mode):
cat /sys/class/net/$PF0/phys_switch_id
Signed-off-by: default avatarMichal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: default avatarMarcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: default avatarSandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent bd1ffe8e
...@@ -647,6 +647,23 @@ void ice_devlink_unregister(struct ice_pf *pf) ...@@ -647,6 +647,23 @@ void ice_devlink_unregister(struct ice_pf *pf)
devlink_unregister(priv_to_devlink(pf)); devlink_unregister(priv_to_devlink(pf));
} }
/**
* ice_devlink_set_switch_id - Set unique switch id based on pci dsn
* @pf: the PF to create a devlink port for
* @ppid: struct with switch id information
*/
static void
ice_devlink_set_switch_id(struct ice_pf *pf, struct netdev_phys_item_id *ppid)
{
struct pci_dev *pdev = pf->pdev;
u64 id;
id = pci_get_dsn(pdev);
ppid->id_len = sizeof(id);
put_unaligned_be64(id, &ppid->id);
}
int ice_devlink_register_params(struct ice_pf *pf) int ice_devlink_register_params(struct ice_pf *pf)
{ {
struct devlink *devlink = priv_to_devlink(pf); struct devlink *devlink = priv_to_devlink(pf);
...@@ -704,6 +721,9 @@ int ice_devlink_create_pf_port(struct ice_pf *pf) ...@@ -704,6 +721,9 @@ int ice_devlink_create_pf_port(struct ice_pf *pf)
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
attrs.phys.port_number = pf->hw.bus.func; attrs.phys.port_number = pf->hw.bus.func;
ice_devlink_set_switch_id(pf, &attrs.switch_id);
devlink_port_attrs_set(devlink_port, &attrs); devlink_port_attrs_set(devlink_port, &attrs);
devlink = priv_to_devlink(pf); devlink = priv_to_devlink(pf);
...@@ -760,6 +780,8 @@ int ice_devlink_create_vf_port(struct ice_vf *vf) ...@@ -760,6 +780,8 @@ int ice_devlink_create_vf_port(struct ice_vf *vf)
attrs.pci_vf.pf = pf->hw.bus.func; attrs.pci_vf.pf = pf->hw.bus.func;
attrs.pci_vf.vf = vf->vf_id; attrs.pci_vf.vf = vf->vf_id;
ice_devlink_set_switch_id(pf, &attrs.switch_id);
devlink_port_attrs_set(devlink_port, &attrs); devlink_port_attrs_set(devlink_port, &attrs);
devlink = priv_to_devlink(pf); devlink = priv_to_devlink(pf);
......
...@@ -296,6 +296,20 @@ static int ice_clear_promisc(struct ice_vsi *vsi, u8 promisc_m) ...@@ -296,6 +296,20 @@ static int ice_clear_promisc(struct ice_vsi *vsi, u8 promisc_m)
return status; return status;
} }
/**
* ice_get_devlink_port - Get devlink port from netdev
* @netdev: the netdevice structure
*/
static struct devlink_port *ice_get_devlink_port(struct net_device *netdev)
{
struct ice_pf *pf = ice_netdev_to_pf(netdev);
if (!ice_is_switchdev_running(pf))
return NULL;
return &pf->devlink_port;
}
/** /**
* ice_vsi_sync_fltr - Update the VSI filter list to the HW * ice_vsi_sync_fltr - Update the VSI filter list to the HW
* @vsi: ptr to the VSI * @vsi: ptr to the VSI
...@@ -8926,4 +8940,5 @@ static const struct net_device_ops ice_netdev_ops = { ...@@ -8926,4 +8940,5 @@ static const struct net_device_ops ice_netdev_ops = {
.ndo_bpf = ice_xdp, .ndo_bpf = ice_xdp,
.ndo_xdp_xmit = ice_xdp_xmit, .ndo_xdp_xmit = ice_xdp_xmit,
.ndo_xsk_wakeup = ice_xsk_wakeup, .ndo_xsk_wakeup = ice_xsk_wakeup,
.ndo_get_devlink_port = ice_get_devlink_port,
}; };
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