static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
{
int err = 0;
u8 prio_tc[MAX_USER_PRIORITY] = {0};
int i;
struct ixgbe_adapter *adapter = netdev_priv(netdev);
/* Fail command if not in CEE mode */
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 1;
/* verify there is something to do, if not then exit */
if (!!state != !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
goto out;
if (state > 0) {
err = ixgbe_setup_tc(netdev, adapter->dcb_cfg.num_tcs.pg_tcs);
ixgbe_dcb_unpack_map(&adapter->dcb_cfg, DCB_TX_CONFIG, prio_tc);
} else {
err = ixgbe_setup_tc(netdev, 0);
}
if (err)
goto out;
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
netdev_set_prio_tc_map(netdev, i, prio_tc[i]);
out:
return err ? 1 : 0;
}
static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
{
u8 err = 0;
struct ixgbe_adapter *adapter = netdev_priv(netdev);
/* Fail command if not in CEE mode */
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 1;
/* verify there is something to do, if not then exit */
if (!!state != !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
return err;
if (state > 0)
err = ixgbe_setup_tc(netdev, adapter->dcb_cfg.num_tcs.pg_tcs);
else
err = ixgbe_setup_tc(netdev, 0);
return err;
}
static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
struct ieee_ets *ets)
{
struct ixgbe_adapter *adapter = netdev_priv(dev);
int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
int i, err = 0;
__u8 max_tc = 0;
__u8 map_chg = 0;
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
return -EINVAL;
if (!adapter->ixgbe_ieee_ets) {
adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets),
GFP_KERNEL);
if (!adapter->ixgbe_ieee_ets)
return -ENOMEM;
/* initialize UP2TC mappings to invalid value */
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
adapter->ixgbe_ieee_ets->prio_tc[i] =
IEEE_8021QAZ_MAX_TCS;
/* if possible update UP2TC mappings from HW */
ixgbe_dcb_read_rtrup2tc(&adapter->hw,
adapter->ixgbe_ieee_ets->prio_tc);
}
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
if (ets->prio_tc[i] > max_tc)
max_tc = ets->prio_tc[i];
if (ets->prio_tc[i] != adapter->ixgbe_ieee_ets->prio_tc[i])
map_chg = 1;
}
memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets));
if (max_tc)
max_tc++;
if (max_tc > adapter->dcb_cfg.num_tcs.pg_tcs)
return -EINVAL;
if (max_tc != netdev_get_num_tc(dev))
err = ixgbe_setup_tc(dev, max_tc);
else if (map_chg)
ixgbe_dcbnl_devreset(dev);
if (err)
goto err_out;
err = ixgbe_dcb_hw_ets(&adapter->hw, ets, max_frame);
err_out:
return err;
}
static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
int err = 0;
/* Fail command if not in CEE mode */
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 1;
/* verify there is something to do, if not then exit */
if (!state == !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
goto out;
err = ixgbe_setup_tc(netdev,
state ? adapter->dcb_cfg.num_tcs.pg_tcs : 0);
out:
return !!err;
}
static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
struct ieee_ets *ets)
{
struct ixgbe_adapter *adapter = netdev_priv(dev);
int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
int i, err = 0;
__u8 max_tc = 0;
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
return -EINVAL;
if (!adapter->ixgbe_ieee_ets) {
adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets),
GFP_KERNEL);
if (!adapter->ixgbe_ieee_ets)
return -ENOMEM;
}
memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets));
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
if (ets->prio_tc[i] > max_tc)
max_tc = ets->prio_tc[i];
}
if (max_tc)
max_tc++;
if (max_tc > adapter->dcb_cfg.num_tcs.pg_tcs)
return -EINVAL;
if (max_tc != netdev_get_num_tc(dev))
err = ixgbe_setup_tc(dev, max_tc);
if (err)
goto err_out;
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
netdev_set_prio_tc_map(dev, i, ets->prio_tc[i]);
err = ixgbe_dcb_hw_ets(&adapter->hw, ets, max_frame);
err_out:
return err;
}
static u8 ixgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode)
{
struct ixgbe_adapter *adapter = netdev_priv(dev);
struct ieee_ets ets = {0};
struct ieee_pfc pfc = {0};
int err = 0;
/* no support for LLD_MANAGED modes or CEE+IEEE */
if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||
!(mode & DCB_CAP_DCBX_HOST))
return 1;
if (mode == adapter->dcbx_cap)
return 0;
adapter->dcbx_cap = mode;
/* ETS and PFC defaults */
ets.ets_cap = 8;
pfc.pfc_cap = 8;
if (mode & DCB_CAP_DCBX_VER_IEEE) {
ixgbe_dcbnl_ieee_setets(dev, &ets);
ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
} else if (mode & DCB_CAP_DCBX_VER_CEE) {
u8 mask = BIT_PFC | BIT_PG_TX | BIT_PG_RX | BIT_APP_UPCHG;
adapter->dcb_set_bitmap |= mask;
ixgbe_dcbnl_set_all(dev);
} else {
/* Drop into single TC mode strict priority as this
* indicates CEE and IEEE versions are disabled
*/
ixgbe_dcbnl_ieee_setets(dev, &ets);
ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
err = ixgbe_setup_tc(dev, 0);
}
return err ? 1 : 0;
}
static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
{
u8 err = 0;
struct ixgbe_adapter *adapter = netdev_priv(netdev);
if (state > 0) {
/* Turn on DCB */
if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
goto out;
if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
e_err(drv, "Enable failed, needs MSI-X\n");
err = 1;
goto out;
}
if (netif_running(netdev))
netdev->netdev_ops->ndo_stop(netdev);
ixgbe_clear_interrupt_scheme(adapter);
switch (adapter->hw.mac.type) {
case ixgbe_mac_82598EB:
adapter->last_lfc_mode = adapter->hw.fc.current_mode;
adapter->hw.fc.requested_mode = ixgbe_fc_none;
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
break;
default:
break;
}
adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
if (!netdev_get_num_tc(netdev))
ixgbe_setup_tc(netdev, MAX_TRAFFIC_CLASS);
ixgbe_init_interrupt_scheme(adapter);
if (netif_running(netdev))
netdev->netdev_ops->ndo_open(netdev);
} else {
/* Turn off DCB */
if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
if (netif_running(netdev))
netdev->netdev_ops->ndo_stop(netdev);
ixgbe_clear_interrupt_scheme(adapter);
adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
adapter->temp_dcb_cfg.pfc_mode_enable = false;
adapter->dcb_cfg.pfc_mode_enable = false;
adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
switch (adapter->hw.mac.type) {
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
break;
default:
break;
}
ixgbe_setup_tc(netdev, 0);
ixgbe_init_interrupt_scheme(adapter);
if (netif_running(netdev))
netdev->netdev_ops->ndo_open(netdev);
}
}
out:
return err;
}
