Message ID | 20220309172748.3460862-8-ioana.ciornei@nxp.com |
---|---|
State | Superseded |
Headers | show |
Series | dpaa2-mac: add support for changing the protocol at runtime | expand |
Hi Ioana, On Wed, Mar 09, 2022 at 07:27:47PM +0200, Ioana Ciornei wrote: > This patch integrates the dpaa2-eth driver with the generic PHY > infrastructure in order to search, find and reconfigure the SerDes lanes > in case of a protocol change. > > On the .mac_config() callback, the phy_set_mode_ext() API is called so > that the Lynx 28G SerDes PHY driver can change the lane's configuration. > In the same phylink callback the MC firmware is called so that it > reconfigures the MAC side to run using the new protocol. > > The consumer drivers - dpaa2-eth and dpaa2-switch - are updated to call > the dpaa2_mac_start/stop functions newly added which will > power_on/power_off the associated SerDes lane. > > Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> > --- > Changes in v2: > - none > > .../net/ethernet/freescale/dpaa2/dpaa2-eth.c | 5 +- > .../net/ethernet/freescale/dpaa2/dpaa2-mac.c | 91 +++++++++++++++++++ > .../net/ethernet/freescale/dpaa2/dpaa2-mac.h | 6 ++ > .../ethernet/freescale/dpaa2/dpaa2-switch.c | 5 +- > 4 files changed, 105 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c > index 939fa9db6a2e..b87369f0605f 100644 > --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c > +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c > @@ -2077,8 +2077,10 @@ static int dpaa2_eth_open(struct net_device *net_dev) > goto enable_err; > } > > - if (dpaa2_eth_is_type_phy(priv)) > + if (dpaa2_eth_is_type_phy(priv)) { > phylink_start(priv->mac->phylink); > + dpaa2_mac_start(priv->mac); Is this safe? Shouldn't dpaa2_mac_start() come before phylink_start() in case phylink determines that the link is somehow already up? I'm a big fan of teardown being in the reverse order of setup so having the start and stop below in the same order just doesn't look right. > + } > > return 0; > > @@ -2153,6 +2155,7 @@ static int dpaa2_eth_stop(struct net_device *net_dev) > > if (dpaa2_eth_is_type_phy(priv)) { > phylink_stop(priv->mac->phylink); > + dpaa2_mac_stop(priv->mac); > } else { > netif_tx_stop_all_queues(net_dev); > netif_carrier_off(net_dev); > diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c > index e6e758eaafea..bd90acc49cdb 100644 > --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c > +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c > @@ -3,6 +3,7 @@ > > #include <linux/acpi.h> > #include <linux/pcs-lynx.h> > +#include <linux/phy/phy.h> > #include <linux/property.h> > > #include "dpaa2-eth.h" > @@ -60,6 +61,26 @@ static int phy_mode(enum dpmac_eth_if eth_if, phy_interface_t *if_mode) > return 0; > } > > +static enum dpmac_eth_if dpmac_eth_if_mode(phy_interface_t if_mode) > +{ > + switch (if_mode) { > + case PHY_INTERFACE_MODE_RGMII: Shouldn't this also include the other RGMII modes (which, from the MAC point of view, are all synonymous? > + return DPMAC_ETH_IF_RGMII; > + case PHY_INTERFACE_MODE_USXGMII: > + return DPMAC_ETH_IF_USXGMII; > + case PHY_INTERFACE_MODE_QSGMII: > + return DPMAC_ETH_IF_QSGMII; > + case PHY_INTERFACE_MODE_SGMII: > + return DPMAC_ETH_IF_SGMII; > + case PHY_INTERFACE_MODE_10GBASER: > + return DPMAC_ETH_IF_XFI; > + case PHY_INTERFACE_MODE_1000BASEX: > + return DPMAC_ETH_IF_1000BASEX; > + default: > + return DPMAC_ETH_IF_MII; > + } > +} > + > static struct fwnode_handle *dpaa2_mac_get_node(struct device *dev, > u16 dpmac_id) > { > @@ -147,6 +168,19 @@ static void dpaa2_mac_config(struct phylink_config *config, unsigned int mode, > if (err) > netdev_err(mac->net_dev, "%s: dpmac_set_link_state() = %d\n", > __func__, err); > + > + if (!mac->serdes_phy) > + return; > + > + /* This happens only if we support changing of protocol at runtime */ > + err = dpmac_set_protocol(mac->mc_io, 0, mac->mc_dev->mc_handle, > + dpmac_eth_if_mode(state->interface)); > + if (err) > + netdev_err(mac->net_dev, "dpmac_set_protocol() = %d\n", err); > + > + err = phy_set_mode_ext(mac->serdes_phy, PHY_MODE_ETHERNET, state->interface); > + if (err) > + netdev_err(mac->net_dev, "phy_set_mode_ext() = %d\n", err); > } > > static void dpaa2_mac_link_up(struct phylink_config *config, > @@ -200,12 +234,21 @@ static void dpaa2_mac_link_down(struct phylink_config *config, > netdev_err(mac->net_dev, "dpmac_set_link_state() = %d\n", err); > } > > +static int dpaa2_mac_prepare(struct phylink_config *config, unsigned int mode, > + phy_interface_t interface) > +{ > + dpaa2_mac_link_down(config, mode, interface); You should never see a reconfiguration while the link is up. However, if the link is in in-band mode, then obviously the link could come up at any moment, and in that case, forcing it down in mac_prepare() is a good idea - but that forcing needs to be removed in mac_finish() to allow in-band to work again. Not sure that your firmware allows that though, and I'm not convinced that calling the above function achieves any of those guarantees. > + > + return 0; > +} > + > static const struct phylink_mac_ops dpaa2_mac_phylink_ops = { > .validate = phylink_generic_validate, > .mac_select_pcs = dpaa2_mac_select_pcs, > .mac_config = dpaa2_mac_config, > .mac_link_up = dpaa2_mac_link_up, > .mac_link_down = dpaa2_mac_link_down, > + .mac_prepare = dpaa2_mac_prepare, > }; > > static int dpaa2_pcs_create(struct dpaa2_mac *mac, > @@ -259,6 +302,8 @@ static void dpaa2_pcs_destroy(struct dpaa2_mac *mac) > > static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac) > { > + int intf, err; > + > /* We support the current interface mode, and if we have a PCS > * similar interface modes that do not require the SerDes lane to be > * reconfigured. > @@ -278,12 +323,40 @@ static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac) > break; > } > } > + > + if (!mac->serdes_phy) > + return; > + > + /* In case we have access to the SerDes phy/lane, then ask the SerDes > + * driver what interfaces are supported based on the current PLL > + * configuration. > + */ > + for (intf = 0; intf < PHY_INTERFACE_MODE_MAX; intf++) { You probably want to avoid PHY_INTERFACE_MODE_NA here, even though your driver may reject it anyway. > + err = phy_validate(mac->serdes_phy, PHY_MODE_ETHERNET, intf, NULL); > + if (err) > + continue; > + > + __set_bit(intf, mac->phylink_config.supported_interfaces); > + } > +} > + > +void dpaa2_mac_start(struct dpaa2_mac *mac) > +{ > + if (mac->serdes_phy) > + phy_power_on(mac->serdes_phy); > +} > + > +void dpaa2_mac_stop(struct dpaa2_mac *mac) > +{ > + if (mac->serdes_phy) > + phy_power_off(mac->serdes_phy); > } > > int dpaa2_mac_connect(struct dpaa2_mac *mac) > { > struct net_device *net_dev = mac->net_dev; > struct fwnode_handle *dpmac_node; > + struct phy *serdes_phy = NULL; > struct phylink *phylink; > int err; > > @@ -300,6 +373,22 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) > return -EINVAL; > mac->if_mode = err; > > + if (mac->features & DPAA2_MAC_FEATURE_PROTOCOL_CHANGE && > + !phy_interface_mode_is_rgmii(mac->if_mode) && > + is_of_node(dpmac_node)) { > + serdes_phy = of_phy_get(to_of_node(dpmac_node), NULL); > + > + if (IS_ERR(serdes_phy)) { > + if (PTR_ERR(serdes_phy) == -ENODEV) > + serdes_phy = NULL; > + else > + return PTR_ERR(serdes_phy); > + } else { > + phy_init(serdes_phy); > + } > + } > + mac->serdes_phy = serdes_phy; > + > /* The MAC does not have the capability to add RGMII delays so > * error out if the interface mode requests them and there is no PHY > * to act upon them > @@ -363,6 +452,8 @@ void dpaa2_mac_disconnect(struct dpaa2_mac *mac) > phylink_disconnect_phy(mac->phylink); > phylink_destroy(mac->phylink); > dpaa2_pcs_destroy(mac); > + of_phy_put(mac->serdes_phy); > + mac->serdes_phy = NULL; > } > > int dpaa2_mac_open(struct dpaa2_mac *mac) > diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h > index d2e51d21c80c..a58cab188a99 100644 > --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h > +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h > @@ -26,6 +26,8 @@ struct dpaa2_mac { > enum dpmac_link_type if_link_type; > struct phylink_pcs *pcs; > struct fwnode_handle *fw_node; > + > + struct phy *serdes_phy; > }; > > bool dpaa2_mac_is_type_fixed(struct fsl_mc_device *dpmac_dev, > @@ -45,4 +47,8 @@ void dpaa2_mac_get_strings(u8 *data); > > void dpaa2_mac_get_ethtool_stats(struct dpaa2_mac *mac, u64 *data); > > +void dpaa2_mac_start(struct dpaa2_mac *mac); > + > +void dpaa2_mac_stop(struct dpaa2_mac *mac); > + > #endif /* DPAA2_MAC_H */ > diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c > index 9a561072aa4a..e4f8f927e223 100644 > --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c > +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c > @@ -703,8 +703,10 @@ static int dpaa2_switch_port_open(struct net_device *netdev) > > dpaa2_switch_enable_ctrl_if_napi(ethsw); > > - if (dpaa2_switch_port_is_type_phy(port_priv)) > + if (dpaa2_switch_port_is_type_phy(port_priv)) { > phylink_start(port_priv->mac->phylink); > + dpaa2_mac_start(port_priv->mac); Same comments as for dpaa2-mac. > + } > > return 0; > } > @@ -717,6 +719,7 @@ static int dpaa2_switch_port_stop(struct net_device *netdev) > > if (dpaa2_switch_port_is_type_phy(port_priv)) { > phylink_stop(port_priv->mac->phylink); > + dpaa2_mac_stop(port_priv->mac); > } else { > netif_tx_stop_all_queues(netdev); > netif_carrier_off(netdev); > -- > 2.33.1 > > Thanks!
On Wed, Mar 09, 2022 at 06:46:26PM +0000, Russell King (Oracle) wrote: > Hi Ioana, > Hi Russell, > > --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c > > +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c > > @@ -2077,8 +2077,10 @@ static int dpaa2_eth_open(struct net_device *net_dev) > > goto enable_err; > > } > > > > - if (dpaa2_eth_is_type_phy(priv)) > > + if (dpaa2_eth_is_type_phy(priv)) { > > phylink_start(priv->mac->phylink); > > + dpaa2_mac_start(priv->mac); > > Is this safe? Shouldn't dpaa2_mac_start() come before phylink_start() > in case phylink determines that the link is somehow already up? I'm > a big fan of teardown being in the reverse order of setup so having > the start and stop below in the same order just doesn't look right. Agree that the teardown being done in the reverse order just looks better. I can change it, of course. I didn't really spot any actual problems with how are things now, but it would be better to just bring up the SerDes lanes and then call phylink_start(). > > +static enum dpmac_eth_if dpmac_eth_if_mode(phy_interface_t if_mode) > > +{ > > + switch (if_mode) { > > + case PHY_INTERFACE_MODE_RGMII: > > Shouldn't this also include the other RGMII modes (which, from the MAC > point of view, are all synonymous? > Good point. Thanks for pointing it out. > > +static int dpaa2_mac_prepare(struct phylink_config *config, unsigned int mode, > > + phy_interface_t interface) > > +{ > > + dpaa2_mac_link_down(config, mode, interface); > > You should never see a reconfiguration while the link is up. However, > if the link is in in-band mode, then obviously the link could come up > at any moment, and in that case, forcing it down in mac_prepare() is > a good idea - but that forcing needs to be removed in mac_finish() > to allow in-band to work again. Not sure that your firmware allows > that though, and I'm not convinced that calling the above function > achieves any of those guarantees. > Ok, I didn't know that I this was a guarantee from phylink's part. In this case, I can just remove the prepare step, sure. > > + /* In case we have access to the SerDes phy/lane, then ask the SerDes > > + * driver what interfaces are supported based on the current PLL > > + * configuration. > > + */ > > + for (intf = 0; intf < PHY_INTERFACE_MODE_MAX; intf++) { > > You probably want to avoid PHY_INTERFACE_MODE_NA here, even though your > driver may reject it anyway. Yes, I'll just start from PHY_INTERFACE_MODE_INTERNAL. > > - if (dpaa2_switch_port_is_type_phy(port_priv)) > > + if (dpaa2_switch_port_is_type_phy(port_priv)) { > > phylink_start(port_priv->mac->phylink); > > + dpaa2_mac_start(port_priv->mac); > > Same comments as for dpaa2-mac. Sure. I'll change the order. > > Thanks! > Thanks! Ioana
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index 939fa9db6a2e..b87369f0605f 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -2077,8 +2077,10 @@ static int dpaa2_eth_open(struct net_device *net_dev) goto enable_err; } - if (dpaa2_eth_is_type_phy(priv)) + if (dpaa2_eth_is_type_phy(priv)) { phylink_start(priv->mac->phylink); + dpaa2_mac_start(priv->mac); + } return 0; @@ -2153,6 +2155,7 @@ static int dpaa2_eth_stop(struct net_device *net_dev) if (dpaa2_eth_is_type_phy(priv)) { phylink_stop(priv->mac->phylink); + dpaa2_mac_stop(priv->mac); } else { netif_tx_stop_all_queues(net_dev); netif_carrier_off(net_dev); diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c index e6e758eaafea..bd90acc49cdb 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c @@ -3,6 +3,7 @@ #include <linux/acpi.h> #include <linux/pcs-lynx.h> +#include <linux/phy/phy.h> #include <linux/property.h> #include "dpaa2-eth.h" @@ -60,6 +61,26 @@ static int phy_mode(enum dpmac_eth_if eth_if, phy_interface_t *if_mode) return 0; } +static enum dpmac_eth_if dpmac_eth_if_mode(phy_interface_t if_mode) +{ + switch (if_mode) { + case PHY_INTERFACE_MODE_RGMII: + return DPMAC_ETH_IF_RGMII; + case PHY_INTERFACE_MODE_USXGMII: + return DPMAC_ETH_IF_USXGMII; + case PHY_INTERFACE_MODE_QSGMII: + return DPMAC_ETH_IF_QSGMII; + case PHY_INTERFACE_MODE_SGMII: + return DPMAC_ETH_IF_SGMII; + case PHY_INTERFACE_MODE_10GBASER: + return DPMAC_ETH_IF_XFI; + case PHY_INTERFACE_MODE_1000BASEX: + return DPMAC_ETH_IF_1000BASEX; + default: + return DPMAC_ETH_IF_MII; + } +} + static struct fwnode_handle *dpaa2_mac_get_node(struct device *dev, u16 dpmac_id) { @@ -147,6 +168,19 @@ static void dpaa2_mac_config(struct phylink_config *config, unsigned int mode, if (err) netdev_err(mac->net_dev, "%s: dpmac_set_link_state() = %d\n", __func__, err); + + if (!mac->serdes_phy) + return; + + /* This happens only if we support changing of protocol at runtime */ + err = dpmac_set_protocol(mac->mc_io, 0, mac->mc_dev->mc_handle, + dpmac_eth_if_mode(state->interface)); + if (err) + netdev_err(mac->net_dev, "dpmac_set_protocol() = %d\n", err); + + err = phy_set_mode_ext(mac->serdes_phy, PHY_MODE_ETHERNET, state->interface); + if (err) + netdev_err(mac->net_dev, "phy_set_mode_ext() = %d\n", err); } static void dpaa2_mac_link_up(struct phylink_config *config, @@ -200,12 +234,21 @@ static void dpaa2_mac_link_down(struct phylink_config *config, netdev_err(mac->net_dev, "dpmac_set_link_state() = %d\n", err); } +static int dpaa2_mac_prepare(struct phylink_config *config, unsigned int mode, + phy_interface_t interface) +{ + dpaa2_mac_link_down(config, mode, interface); + + return 0; +} + static const struct phylink_mac_ops dpaa2_mac_phylink_ops = { .validate = phylink_generic_validate, .mac_select_pcs = dpaa2_mac_select_pcs, .mac_config = dpaa2_mac_config, .mac_link_up = dpaa2_mac_link_up, .mac_link_down = dpaa2_mac_link_down, + .mac_prepare = dpaa2_mac_prepare, }; static int dpaa2_pcs_create(struct dpaa2_mac *mac, @@ -259,6 +302,8 @@ static void dpaa2_pcs_destroy(struct dpaa2_mac *mac) static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac) { + int intf, err; + /* We support the current interface mode, and if we have a PCS * similar interface modes that do not require the SerDes lane to be * reconfigured. @@ -278,12 +323,40 @@ static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac) break; } } + + if (!mac->serdes_phy) + return; + + /* In case we have access to the SerDes phy/lane, then ask the SerDes + * driver what interfaces are supported based on the current PLL + * configuration. + */ + for (intf = 0; intf < PHY_INTERFACE_MODE_MAX; intf++) { + err = phy_validate(mac->serdes_phy, PHY_MODE_ETHERNET, intf, NULL); + if (err) + continue; + + __set_bit(intf, mac->phylink_config.supported_interfaces); + } +} + +void dpaa2_mac_start(struct dpaa2_mac *mac) +{ + if (mac->serdes_phy) + phy_power_on(mac->serdes_phy); +} + +void dpaa2_mac_stop(struct dpaa2_mac *mac) +{ + if (mac->serdes_phy) + phy_power_off(mac->serdes_phy); } int dpaa2_mac_connect(struct dpaa2_mac *mac) { struct net_device *net_dev = mac->net_dev; struct fwnode_handle *dpmac_node; + struct phy *serdes_phy = NULL; struct phylink *phylink; int err; @@ -300,6 +373,22 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) return -EINVAL; mac->if_mode = err; + if (mac->features & DPAA2_MAC_FEATURE_PROTOCOL_CHANGE && + !phy_interface_mode_is_rgmii(mac->if_mode) && + is_of_node(dpmac_node)) { + serdes_phy = of_phy_get(to_of_node(dpmac_node), NULL); + + if (IS_ERR(serdes_phy)) { + if (PTR_ERR(serdes_phy) == -ENODEV) + serdes_phy = NULL; + else + return PTR_ERR(serdes_phy); + } else { + phy_init(serdes_phy); + } + } + mac->serdes_phy = serdes_phy; + /* The MAC does not have the capability to add RGMII delays so * error out if the interface mode requests them and there is no PHY * to act upon them @@ -363,6 +452,8 @@ void dpaa2_mac_disconnect(struct dpaa2_mac *mac) phylink_disconnect_phy(mac->phylink); phylink_destroy(mac->phylink); dpaa2_pcs_destroy(mac); + of_phy_put(mac->serdes_phy); + mac->serdes_phy = NULL; } int dpaa2_mac_open(struct dpaa2_mac *mac) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h index d2e51d21c80c..a58cab188a99 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h @@ -26,6 +26,8 @@ struct dpaa2_mac { enum dpmac_link_type if_link_type; struct phylink_pcs *pcs; struct fwnode_handle *fw_node; + + struct phy *serdes_phy; }; bool dpaa2_mac_is_type_fixed(struct fsl_mc_device *dpmac_dev, @@ -45,4 +47,8 @@ void dpaa2_mac_get_strings(u8 *data); void dpaa2_mac_get_ethtool_stats(struct dpaa2_mac *mac, u64 *data); +void dpaa2_mac_start(struct dpaa2_mac *mac); + +void dpaa2_mac_stop(struct dpaa2_mac *mac); + #endif /* DPAA2_MAC_H */ diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c index 9a561072aa4a..e4f8f927e223 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -703,8 +703,10 @@ static int dpaa2_switch_port_open(struct net_device *netdev) dpaa2_switch_enable_ctrl_if_napi(ethsw); - if (dpaa2_switch_port_is_type_phy(port_priv)) + if (dpaa2_switch_port_is_type_phy(port_priv)) { phylink_start(port_priv->mac->phylink); + dpaa2_mac_start(port_priv->mac); + } return 0; } @@ -717,6 +719,7 @@ static int dpaa2_switch_port_stop(struct net_device *netdev) if (dpaa2_switch_port_is_type_phy(port_priv)) { phylink_stop(port_priv->mac->phylink); + dpaa2_mac_stop(port_priv->mac); } else { netif_tx_stop_all_queues(netdev); netif_carrier_off(netdev);
This patch integrates the dpaa2-eth driver with the generic PHY infrastructure in order to search, find and reconfigure the SerDes lanes in case of a protocol change. On the .mac_config() callback, the phy_set_mode_ext() API is called so that the Lynx 28G SerDes PHY driver can change the lane's configuration. In the same phylink callback the MC firmware is called so that it reconfigures the MAC side to run using the new protocol. The consumer drivers - dpaa2-eth and dpaa2-switch - are updated to call the dpaa2_mac_start/stop functions newly added which will power_on/power_off the associated SerDes lane. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> --- Changes in v2: - none .../net/ethernet/freescale/dpaa2/dpaa2-eth.c | 5 +- .../net/ethernet/freescale/dpaa2/dpaa2-mac.c | 91 +++++++++++++++++++ .../net/ethernet/freescale/dpaa2/dpaa2-mac.h | 6 ++ .../ethernet/freescale/dpaa2/dpaa2-switch.c | 5 +- 4 files changed, 105 insertions(+), 2 deletions(-)