static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
int ret;
adapter->dcb_set_bitmap &= ~BIT_BCN; /* no set for BCN */
if (!adapter->dcb_set_bitmap)
return 1;
while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
msleep(1);
if (netif_running(netdev))
ixgbe_down(adapter);
ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
adapter->ring_feature[RING_F_DCB].indices);
if (ret) {
clear_bit(__IXGBE_RESETTING, &adapter->state);
return ret;
}
if (netif_running(netdev))
ixgbe_up(adapter);
adapter->dcb_set_bitmap = 0x00;
clear_bit(__IXGBE_RESETTING, &adapter->state);
return ret;
}
static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
int ret;
if (!adapter->dcb_set_bitmap)
return DCB_NO_HW_CHG;
if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
msleep(1);
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
if (netif_running(netdev))
netdev->netdev_ops->ndo_stop(netdev);
ixgbe_clear_interrupt_scheme(adapter);
} else {
if (netif_running(netdev))
ixgbe_down(adapter);
}
}
ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
adapter->ring_feature[RING_F_DCB].indices);
if (ret) {
if (adapter->dcb_set_bitmap & BIT_RESETLINK)
clear_bit(__IXGBE_RESETTING, &adapter->state);
return DCB_NO_HW_CHG;
}
if (adapter->dcb_cfg.pfc_mode_enable) {
if ((adapter->hw.mac.type != ixgbe_mac_82598EB) &&
(adapter->hw.fc.current_mode != ixgbe_fc_pfc))
adapter->last_lfc_mode = adapter->hw.fc.current_mode;
adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
} else {
if (adapter->hw.mac.type != ixgbe_mac_82598EB)
adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
else
adapter->hw.fc.requested_mode = ixgbe_fc_none;
}
if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
ixgbe_init_interrupt_scheme(adapter);
if (netif_running(netdev))
netdev->netdev_ops->ndo_open(netdev);
} else {
if (netif_running(netdev))
ixgbe_up(adapter);
}
ret = DCB_HW_CHG_RST;
} else if (adapter->dcb_set_bitmap & BIT_PFC) {
if (adapter->hw.mac.type == ixgbe_mac_82598EB)
ixgbe_dcb_config_pfc_82598(&adapter->hw,
&adapter->dcb_cfg);
else if (adapter->hw.mac.type == ixgbe_mac_82599EB)
ixgbe_dcb_config_pfc_82599(&adapter->hw,
&adapter->dcb_cfg);
ret = DCB_HW_CHG;
}
if (adapter->dcb_cfg.pfc_mode_enable)
adapter->hw.fc.current_mode = ixgbe_fc_pfc;
if (adapter->dcb_set_bitmap & BIT_RESETLINK)
clear_bit(__IXGBE_RESETTING, &adapter->state);
adapter->dcb_set_bitmap = 0x00;
return ret;
}
static int ixgbe_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_ring *temp_ring;
int i, err;
u32 new_rx_count, new_tx_count;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
return -EINVAL;
new_rx_count = max(ring->rx_pending, (u32)IXGBE_MIN_RXD);
new_rx_count = min(new_rx_count, (u32)IXGBE_MAX_RXD);
new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
new_tx_count = max(ring->tx_pending, (u32)IXGBE_MIN_TXD);
new_tx_count = min(new_tx_count, (u32)IXGBE_MAX_TXD);
new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
if ((new_tx_count == adapter->tx_ring->count) &&
(new_rx_count == adapter->rx_ring->count)) {
/* nothing to do */
return 0;
}
if (adapter->num_tx_queues > adapter->num_rx_queues)
temp_ring = vmalloc(adapter->num_tx_queues *
sizeof(struct ixgbe_ring));
else
temp_ring = vmalloc(adapter->num_rx_queues *
sizeof(struct ixgbe_ring));
if (!temp_ring)
return -ENOMEM;
while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
msleep(1);
if (netif_running(netdev))
ixgbe_down(adapter);
/*
* We can't just free everything and then setup again,
* because the ISRs in MSI-X mode get passed pointers
* to the tx and rx ring structs.
*/
if (new_tx_count != adapter->tx_ring->count) {
memcpy(temp_ring, adapter->tx_ring,
adapter->num_tx_queues * sizeof(struct ixgbe_ring));
for (i = 0; i < adapter->num_tx_queues; i++) {
temp_ring[i].count = new_tx_count;
err = ixgbe_setup_tx_resources(adapter, &temp_ring[i]);
if (err) {
while (i) {
i--;
ixgbe_free_tx_resources(adapter,
&temp_ring[i]);
}
goto err_setup;
}
}
for (i = 0; i < adapter->num_tx_queues; i++)
ixgbe_free_tx_resources(adapter, &adapter->tx_ring[i]);
memcpy(adapter->tx_ring, temp_ring,
adapter->num_tx_queues * sizeof(struct ixgbe_ring));
adapter->tx_ring_count = new_tx_count;
}
if (new_rx_count != adapter->rx_ring->count) {
memcpy(temp_ring, adapter->rx_ring,
adapter->num_rx_queues * sizeof(struct ixgbe_ring));
for (i = 0; i < adapter->num_rx_queues; i++) {
temp_ring[i].count = new_rx_count;
err = ixgbe_setup_rx_resources(adapter, &temp_ring[i]);
if (err) {
while (i) {
i--;
ixgbe_free_rx_resources(adapter,
&temp_ring[i]);
}
goto err_setup;
}
}
for (i = 0; i < adapter->num_rx_queues; i++)
ixgbe_free_rx_resources(adapter, &adapter->rx_ring[i]);
memcpy(adapter->rx_ring, temp_ring,
adapter->num_rx_queues * sizeof(struct ixgbe_ring));
adapter->rx_ring_count = new_rx_count;
}
/* success! */
err = 0;
err_setup:
if (netif_running(netdev))
ixgbe_up(adapter);
clear_bit(__IXGBE_RESETTING, &adapter->state);
return err;
}
static int ixgbe_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_ring *temp_tx_ring, *temp_rx_ring;
int i, err;
u32 new_rx_count, new_tx_count;
bool need_update = false;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
return -EINVAL;
new_rx_count = max(ring->rx_pending, (u32)IXGBE_MIN_RXD);
new_rx_count = min(new_rx_count, (u32)IXGBE_MAX_RXD);
new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
new_tx_count = max(ring->tx_pending, (u32)IXGBE_MIN_TXD);
new_tx_count = min(new_tx_count, (u32)IXGBE_MAX_TXD);
new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
if ((new_tx_count == adapter->tx_ring->count) &&
(new_rx_count == adapter->rx_ring->count)) {
/* nothing to do */
return 0;
}
while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
msleep(1);
temp_tx_ring = kcalloc(adapter->num_tx_queues,
sizeof(struct ixgbe_ring), GFP_KERNEL);
if (!temp_tx_ring) {
err = -ENOMEM;
goto err_setup;
}
if (new_tx_count != adapter->tx_ring_count) {
memcpy(temp_tx_ring, adapter->tx_ring,
adapter->num_tx_queues * sizeof(struct ixgbe_ring));
for (i = 0; i < adapter->num_tx_queues; i++) {
temp_tx_ring[i].count = new_tx_count;
err = ixgbe_setup_tx_resources(adapter,
&temp_tx_ring[i]);
if (err) {
while (i) {
i--;
ixgbe_free_tx_resources(adapter,
&temp_tx_ring[i]);
}
goto err_setup;
}
temp_tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
}
need_update = true;
}
temp_rx_ring = kcalloc(adapter->num_rx_queues,
sizeof(struct ixgbe_ring), GFP_KERNEL);
if ((!temp_rx_ring) && (need_update)) {
for (i = 0; i < adapter->num_tx_queues; i++)
ixgbe_free_tx_resources(adapter, &temp_tx_ring[i]);
kfree(temp_tx_ring);
err = -ENOMEM;
goto err_setup;
}
if (new_rx_count != adapter->rx_ring_count) {
memcpy(temp_rx_ring, adapter->rx_ring,
adapter->num_rx_queues * sizeof(struct ixgbe_ring));
for (i = 0; i < adapter->num_rx_queues; i++) {
temp_rx_ring[i].count = new_rx_count;
err = ixgbe_setup_rx_resources(adapter,
&temp_rx_ring[i]);
if (err) {
while (i) {
i--;
ixgbe_free_rx_resources(adapter,
&temp_rx_ring[i]);
}
goto err_setup;
}
temp_rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
}
need_update = true;
}
/* if rings need to be updated, here's the place to do it in one shot */
if (need_update) {
if (netif_running(netdev))
ixgbe_down(adapter);
/* tx */
if (new_tx_count != adapter->tx_ring_count) {
kfree(adapter->tx_ring);
adapter->tx_ring = temp_tx_ring;
temp_tx_ring = NULL;
adapter->tx_ring_count = new_tx_count;
}
/* rx */
if (new_rx_count != adapter->rx_ring_count) {
kfree(adapter->rx_ring);
adapter->rx_ring = temp_rx_ring;
temp_rx_ring = NULL;
adapter->rx_ring_count = new_rx_count;
}
}
/* success! */
err = 0;
if (netif_running(netdev))
ixgbe_up(adapter);
err_setup:
clear_bit(__IXGBE_RESETTING, &adapter->state);
return err;
}
static int ixgbe_dcb_set_all(struct sk_buff *skb, struct genl_info *info)
{
struct net_device *netdev = NULL;
struct ixgbe_adapter *adapter = NULL;
int ret = -ENOMEM;
u8 value;
u8 retval = 0;
if (!info->attrs[DCB_A_IFNAME] || !info->attrs[DCB_A_SET_ALL])
goto err;
netdev = dev_get_by_name(&init_net,
nla_data(info->attrs[DCB_A_IFNAME]));
if (!netdev)
goto err;
ret = ixgbe_dcb_check_adapter(netdev);
if (ret)
goto err_out;
else
adapter = netdev_priv(netdev);
if (!(adapter->flags & IXGBE_FLAG_DCA_CAPABLE)) {
ret = -EINVAL;
goto err_out;
}
value = nla_get_u8(info->attrs[DCB_A_SET_ALL]);
if ((value & 1) != value) {
DPRINTK(DRV, ERR, "Value is not 1 or 0, it is %d.\n", value);
} else {
if (!adapter->dcb_set_bitmap) {
retval = 1;
goto out;
}
while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
msleep(1);
ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg,
&adapter->dcb_cfg,
adapter->ring_feature[RING_F_DCB].indices);
if (ret) {
clear_bit(__IXGBE_RESETTING, &adapter->state);
goto err_out;
}
ixgbe_down(adapter);
ixgbe_up(adapter);
adapter->dcb_set_bitmap = 0x00;
clear_bit(__IXGBE_RESETTING, &adapter->state);
}
out:
ret = ixgbe_nl_reply(retval, DCB_C_SET_ALL, DCB_A_SET_ALL, info);
if (ret)
goto err_out;
err_out:
dev_put(netdev);
err:
return ret;
}
static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
bool do_reset;
int ret;
if (!adapter->dcb_set_bitmap)
return DCB_NO_HW_CHG;
ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
adapter->ring_feature[RING_F_DCB].indices);
if (ret)
return DCB_NO_HW_CHG;
/* Only take down the adapter if the configuration change
* requires a reset.
*/
do_reset = adapter->dcb_set_bitmap & (BIT_RESETLINK | BIT_APP_UPCHG);
if (do_reset) {
while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
msleep(1);
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
if (netif_running(netdev))
#ifdef HAVE_NET_DEVICE_OPS
netdev->netdev_ops->ndo_stop(netdev);
#else
netdev->stop(netdev);
#endif
ixgbe_clear_interrupt_scheme(adapter);
} else {
if (netif_running(netdev))
ixgbe_down(adapter);
}
}
if (adapter->dcb_cfg.pfc_mode_enable) {
switch (adapter->hw.mac.type) {
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
if (adapter->hw.fc.current_mode != ixgbe_fc_pfc)
adapter->last_lfc_mode = adapter->hw.fc.current_mode;
break;
default:
break;
}
adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
} else {
switch (adapter->hw.mac.type) {
case ixgbe_mac_82598EB:
adapter->hw.fc.requested_mode = ixgbe_fc_none;
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
break;
default:
break;
}
}
if (do_reset) {
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
ixgbe_init_interrupt_scheme(adapter);
if (netif_running(netdev))
#ifdef HAVE_NET_DEVICE_OPS
netdev->netdev_ops->ndo_open(netdev);
#else
netdev->open(netdev);
#endif
} else {
if (netif_running(netdev))
ixgbe_up(adapter);
}
ret = DCB_HW_CHG_RST;
} else if (adapter->dcb_set_bitmap & BIT_PFC) {
if (adapter->hw.mac.type == ixgbe_mac_82598EB)
ixgbe_dcb_config_pfc_82598(&adapter->hw,
&adapter->dcb_cfg);
else if (adapter->hw.mac.type == ixgbe_mac_82599EB)
ixgbe_dcb_config_pfc_82599(&adapter->hw,
&adapter->dcb_cfg);
ret = DCB_HW_CHG;
}
if (adapter->dcb_cfg.pfc_mode_enable)
adapter->hw.fc.current_mode = ixgbe_fc_pfc;
if (do_reset)
clear_bit(__IXGBE_RESETTING, &adapter->state);
adapter->dcb_set_bitmap = 0x00;
return ret;
}
