static int cxgb_open(struct net_device *dev)
{
int err;
struct adapter *adapter = dev->priv;
int other_ports = adapter->open_device_map & PORT_MASK;
if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
return err;
__set_bit(dev->if_port, &adapter->open_device_map);
link_start(&adapter->port[dev->if_port]);
netif_start_queue(dev);
if (!other_ports && adapter->params.stats_update_period)
schedule_mac_stats_update(adapter,
adapter->params.stats_update_period);
return 0;
}
/* Start the device.
* It returns 0 on success.
*/
static int cxgbe_dev_start(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
int err = 0, i;
CXGBE_FUNC_TRACE();
/*
* If we don't have a connection to the firmware there's nothing we
* can do.
*/
if (!(adapter->flags & FW_OK)) {
err = -ENXIO;
goto out;
}
if (!(adapter->flags & FULL_INIT_DONE)) {
err = cxgbe_up(adapter);
if (err < 0)
goto out;
}
err = setup_rss(pi);
if (err)
goto out;
for (i = 0; i < pi->n_tx_qsets; i++) {
err = cxgbe_dev_tx_queue_start(eth_dev, i);
if (err)
goto out;
}
for (i = 0; i < pi->n_rx_qsets; i++) {
err = cxgbe_dev_rx_queue_start(eth_dev, i);
if (err)
goto out;
}
err = link_start(pi);
if (err)
goto out;
out:
return err;
}
void cxgbe_dev_info_get(struct rte_eth_dev *eth_dev,
struct rte_eth_dev_info *device_info)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
int max_queues = adapter->sge.max_ethqsets / adapter->params.nports;
static const struct rte_eth_desc_lim cxgbe_desc_lim = {
.nb_max = CXGBE_MAX_RING_DESC_SIZE,
.nb_min = CXGBE_MIN_RING_DESC_SIZE,
.nb_align = 1,
};
device_info->min_rx_bufsize = CXGBE_MIN_RX_BUFSIZE;
device_info->max_rx_pktlen = CXGBE_MAX_RX_PKTLEN;
device_info->max_rx_queues = max_queues;
device_info->max_tx_queues = max_queues;
device_info->max_mac_addrs = 1;
/* XXX: For now we support one MAC/port */
device_info->max_vfs = adapter->params.arch.vfcount;
device_info->max_vmdq_pools = 0; /* XXX: For now no support for VMDQ */
device_info->rx_queue_offload_capa = 0UL;
device_info->rx_offload_capa = CXGBE_RX_OFFLOADS;
device_info->tx_queue_offload_capa = 0UL;
device_info->tx_offload_capa = CXGBE_TX_OFFLOADS;
device_info->reta_size = pi->rss_size;
device_info->hash_key_size = CXGBE_DEFAULT_RSS_KEY_LEN;
device_info->flow_type_rss_offloads = CXGBE_RSS_HF_ALL;
device_info->rx_desc_lim = cxgbe_desc_lim;
device_info->tx_desc_lim = cxgbe_desc_lim;
cxgbe_get_speed_caps(pi, &device_info->speed_capa);
}
void cxgbe_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
1, -1, 1, -1, false);
}
void cxgbe_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
0, -1, 1, -1, false);
}
void cxgbe_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
/* TODO: address filters ?? */
t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
-1, 1, 1, -1, false);
}
void cxgbe_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
/* TODO: address filters ?? */
t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
-1, 0, 1, -1, false);
}
int cxgbe_dev_link_update(struct rte_eth_dev *eth_dev,
int wait_to_complete)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
struct sge *s = &adapter->sge;
struct rte_eth_link new_link = { 0 };
unsigned int i, work_done, budget = 32;
u8 old_link = pi->link_cfg.link_ok;
for (i = 0; i < CXGBE_LINK_STATUS_POLL_CNT; i++) {
cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done);
/* Exit if link status changed or always forced up */
if (pi->link_cfg.link_ok != old_link || force_linkup(adapter))
break;
if (!wait_to_complete)
break;
rte_delay_ms(CXGBE_LINK_STATUS_POLL_MS);
}
new_link.link_status = force_linkup(adapter) ?
ETH_LINK_UP : pi->link_cfg.link_ok;
new_link.link_autoneg = pi->link_cfg.autoneg;
new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
new_link.link_speed = pi->link_cfg.speed;
return rte_eth_linkstatus_set(eth_dev, &new_link);
}
/**
* Set device link up.
*/
int cxgbe_dev_set_link_up(struct rte_eth_dev *dev)
{
struct port_info *pi = (struct port_info *)(dev->data->dev_private);
struct adapter *adapter = pi->adapter;
unsigned int work_done, budget = 32;
struct sge *s = &adapter->sge;
int ret;
/* Flush all link events */
cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done);
/* If link already up, nothing to do */
if (pi->link_cfg.link_ok)
return 0;
ret = cxgbe_set_link_status(pi, true);
if (ret)
return ret;
cxgbe_dev_link_update(dev, 1);
return 0;
}
/**
* Set device link down.
*/
int cxgbe_dev_set_link_down(struct rte_eth_dev *dev)
{
struct port_info *pi = (struct port_info *)(dev->data->dev_private);
struct adapter *adapter = pi->adapter;
unsigned int work_done, budget = 32;
struct sge *s = &adapter->sge;
int ret;
/* Flush all link events */
cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done);
/* If link already down, nothing to do */
if (!pi->link_cfg.link_ok)
return 0;
ret = cxgbe_set_link_status(pi, false);
if (ret)
return ret;
cxgbe_dev_link_update(dev, 0);
return 0;
}
int cxgbe_dev_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
struct rte_eth_dev_info dev_info;
int err;
uint16_t new_mtu = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
cxgbe_dev_info_get(eth_dev, &dev_info);
/* Must accommodate at least ETHER_MIN_MTU */
if ((new_mtu < ETHER_MIN_MTU) || (new_mtu > dev_info.max_rx_pktlen))
return -EINVAL;
/* set to jumbo mode if needed */
if (new_mtu > ETHER_MAX_LEN)
eth_dev->data->dev_conf.rxmode.offloads |=
DEV_RX_OFFLOAD_JUMBO_FRAME;
else
eth_dev->data->dev_conf.rxmode.offloads &=
~DEV_RX_OFFLOAD_JUMBO_FRAME;
err = t4_set_rxmode(adapter, adapter->mbox, pi->viid, new_mtu, -1, -1,
-1, -1, true);
if (!err)
eth_dev->data->dev_conf.rxmode.max_rx_pkt_len = new_mtu;
return err;
}
/*
* Stop device.
*/
void cxgbe_dev_close(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
CXGBE_FUNC_TRACE();
if (!(adapter->flags & FULL_INIT_DONE))
return;
cxgbe_down(pi);
/*
* We clear queues only if both tx and rx path of the port
* have been disabled
*/
t4_sge_eth_clear_queues(pi);
}
/* Start the device.
* It returns 0 on success.
*/
int cxgbe_dev_start(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
int err = 0, i;
CXGBE_FUNC_TRACE();
/*
* If we don't have a connection to the firmware there's nothing we
* can do.
*/
if (!(adapter->flags & FW_OK)) {
err = -ENXIO;
goto out;
}
if (!(adapter->flags & FULL_INIT_DONE)) {
err = cxgbe_up(adapter);
if (err < 0)
goto out;
}
cxgbe_enable_rx_queues(pi);
err = setup_rss(pi);
if (err)
goto out;
for (i = 0; i < pi->n_tx_qsets; i++) {
err = cxgbe_dev_tx_queue_start(eth_dev, i);
if (err)
goto out;
}
for (i = 0; i < pi->n_rx_qsets; i++) {
err = cxgbe_dev_rx_queue_start(eth_dev, i);
if (err)
goto out;
}
err = link_start(pi);
if (err)
goto out;
out:
return err;
}
/*
* Stop device: disable rx and tx functions to allow for reconfiguring.
*/
void cxgbe_dev_stop(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
CXGBE_FUNC_TRACE();
if (!(adapter->flags & FULL_INIT_DONE))
return;
cxgbe_down(pi);
/*
* We clear queues only if both tx and rx path of the port
* have been disabled
*/
t4_sge_eth_clear_queues(pi);
}
int cxgbe_dev_configure(struct rte_eth_dev *eth_dev)
{
struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
struct adapter *adapter = pi->adapter;
uint64_t configured_offloads;
int err;
CXGBE_FUNC_TRACE();
configured_offloads = eth_dev->data->dev_conf.rxmode.offloads;
/* KEEP_CRC offload flag is not supported by PMD
* can remove the below block when DEV_RX_OFFLOAD_CRC_STRIP removed
*/
if (rte_eth_dev_must_keep_crc(configured_offloads)) {
dev_info(adapter, "can't disable hw crc strip\n");
eth_dev->data->dev_conf.rxmode.offloads |=
DEV_RX_OFFLOAD_CRC_STRIP;
}
if (!(adapter->flags & FW_QUEUE_BOUND)) {
err = setup_sge_fwevtq(adapter);
if (err)
return err;
adapter->flags |= FW_QUEUE_BOUND;
err = setup_sge_ctrl_txq(adapter);
if (err)
return err;
}
err = cfg_queue_count(eth_dev);
if (err)
return err;
return 0;
}
int cxgbe_dev_tx_queue_start(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id)
{
int ret;
struct sge_eth_txq *txq = (struct sge_eth_txq *)
(eth_dev->data->tx_queues[tx_queue_id]);
dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id);
ret = t4_sge_eth_txq_start(txq);
if (ret == 0)
eth_dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
return ret;
}