static int bnxt_set_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct bnxt *bp = netdev_priv(dev);
int max_rx_rings, max_tx_rings, tcs;
u32 rc = 0;
if (channel->other_count || channel->combined_count ||
!channel->rx_count || !channel->tx_count)
return -EINVAL;
bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings);
tcs = netdev_get_num_tc(dev);
if (tcs > 1)
max_tx_rings /= tcs;
if (channel->rx_count > max_rx_rings ||
channel->tx_count > max_tx_rings)
return -EINVAL;
if (netif_running(dev)) {
if (BNXT_PF(bp)) {
/* TODO CHIMP_FW: Send message to all VF's
* before PF unload
*/
}
rc = bnxt_close_nic(bp, true, false);
if (rc) {
netdev_err(bp->dev, "Set channel failure rc :%x\n",
rc);
return rc;
}
}
bp->rx_nr_rings = channel->rx_count;
bp->tx_nr_rings_per_tc = channel->tx_count;
bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
if (tcs > 1)
bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tcs;
bp->cp_nr_rings = max_t(int, bp->tx_nr_rings, bp->rx_nr_rings);
bp->num_stat_ctxs = bp->cp_nr_rings;
if (netif_running(dev)) {
rc = bnxt_open_nic(bp, true, false);
if ((!rc) && BNXT_PF(bp)) {
/* TODO CHIMP_FW: Send message to all VF's
* to renable
*/
}
}
return rc;
}
static void bnxt_get_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct bnxt *bp = netdev_priv(dev);
int max_rx_rings, max_tx_rings, tcs;
bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, true);
channel->max_combined = max_rx_rings;
bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, false);
tcs = netdev_get_num_tc(dev);
if (tcs > 1)
max_tx_rings /= tcs;
channel->max_rx = max_rx_rings;
channel->max_tx = max_tx_rings;
channel->max_other = 0;
if (bp->flags & BNXT_FLAG_SHARED_RINGS) {
channel->combined_count = bp->rx_nr_rings;
} else {
channel->rx_count = bp->rx_nr_rings;
channel->tx_count = bp->tx_nr_rings_per_tc;
}
}
static void bnxt_get_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct bnxt *bp = netdev_priv(dev);
int max_rx_rings, max_tx_rings, tcs;
bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings);
tcs = netdev_get_num_tc(dev);
if (tcs > 1)
max_tx_rings /= tcs;
channel->max_rx = max_rx_rings;
channel->max_tx = max_tx_rings;
channel->max_other = 0;
channel->max_combined = 0;
channel->rx_count = bp->rx_nr_rings;
channel->tx_count = bp->tx_nr_rings_per_tc;
}
static int bnxt_set_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct bnxt *bp = netdev_priv(dev);
int max_rx_rings, max_tx_rings, tcs;
u32 rc = 0;
bool sh = false;
if (channel->other_count)
return -EINVAL;
if (!channel->combined_count &&
(!channel->rx_count || !channel->tx_count))
return -EINVAL;
if (channel->combined_count &&
(channel->rx_count || channel->tx_count))
return -EINVAL;
if (channel->combined_count)
sh = true;
bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, sh);
tcs = netdev_get_num_tc(dev);
if (tcs > 1)
max_tx_rings /= tcs;
if (sh && (channel->combined_count > max_rx_rings ||
channel->combined_count > max_tx_rings))
return -ENOMEM;
if (!sh && (channel->rx_count > max_rx_rings ||
channel->tx_count > max_tx_rings))
return -ENOMEM;
if (netif_running(dev)) {
if (BNXT_PF(bp)) {
/* TODO CHIMP_FW: Send message to all VF's
* before PF unload
*/
}
rc = bnxt_close_nic(bp, true, false);
if (rc) {
netdev_err(bp->dev, "Set channel failure rc :%x\n",
rc);
return rc;
}
}
if (sh) {
bp->flags |= BNXT_FLAG_SHARED_RINGS;
bp->rx_nr_rings = channel->combined_count;
bp->tx_nr_rings_per_tc = channel->combined_count;
} else {
bp->flags &= ~BNXT_FLAG_SHARED_RINGS;
bp->rx_nr_rings = channel->rx_count;
bp->tx_nr_rings_per_tc = channel->tx_count;
}
bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
if (tcs > 1)
bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tcs;
bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
bp->tx_nr_rings + bp->rx_nr_rings;
bp->num_stat_ctxs = bp->cp_nr_rings;
/* After changing number of rx channels, update NTUPLE feature. */
netdev_update_features(dev);
if (netif_running(dev)) {
rc = bnxt_open_nic(bp, true, false);
if ((!rc) && BNXT_PF(bp)) {
/* TODO CHIMP_FW: Send message to all VF's
* to renable
*/
}
}
return rc;
}
