qede: Add support for {get, set}_ringparam
Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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8edf049d57
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01ef7e05cc
drivers/net/ethernet/qlogic/qede
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@ -270,13 +270,13 @@ int qede_change_mtu(struct net_device *dev, int new_mtu);
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void qede_fill_by_demand_stats(struct qede_dev *edev);
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#define RX_RING_SIZE_POW 13
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#define RX_RING_SIZE BIT(RX_RING_SIZE_POW)
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#define RX_RING_SIZE ((u16)BIT(RX_RING_SIZE_POW))
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#define NUM_RX_BDS_MAX (RX_RING_SIZE - 1)
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#define NUM_RX_BDS_MIN 128
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#define NUM_RX_BDS_DEF NUM_RX_BDS_MAX
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#define TX_RING_SIZE_POW 13
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#define TX_RING_SIZE BIT(TX_RING_SIZE_POW)
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#define TX_RING_SIZE ((u16)BIT(TX_RING_SIZE_POW))
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#define NUM_TX_BDS_MAX (TX_RING_SIZE - 1)
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#define NUM_TX_BDS_MIN 128
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#define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
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@ -333,6 +333,48 @@ static u32 qede_get_link(struct net_device *dev)
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return current_link.link_up;
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}
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static void qede_get_ringparam(struct net_device *dev,
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struct ethtool_ringparam *ering)
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{
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struct qede_dev *edev = netdev_priv(dev);
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ering->rx_max_pending = NUM_RX_BDS_MAX;
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ering->rx_pending = edev->q_num_rx_buffers;
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ering->tx_max_pending = NUM_TX_BDS_MAX;
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ering->tx_pending = edev->q_num_tx_buffers;
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}
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static int qede_set_ringparam(struct net_device *dev,
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struct ethtool_ringparam *ering)
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{
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struct qede_dev *edev = netdev_priv(dev);
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DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
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"Set ring params command parameters: rx_pending = %d, tx_pending = %d\n",
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ering->rx_pending, ering->tx_pending);
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/* Validate legality of configuration */
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if (ering->rx_pending > NUM_RX_BDS_MAX ||
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ering->rx_pending < NUM_RX_BDS_MIN ||
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ering->tx_pending > NUM_TX_BDS_MAX ||
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ering->tx_pending < NUM_TX_BDS_MIN) {
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DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
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"Can only support Rx Buffer size [0%08x,...,0x%08x] and Tx Buffer size [0x%08x,...,0x%08x]\n",
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NUM_RX_BDS_MIN, NUM_RX_BDS_MAX,
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NUM_TX_BDS_MIN, NUM_TX_BDS_MAX);
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return -EINVAL;
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}
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/* Change ring size and re-load */
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edev->q_num_rx_buffers = ering->rx_pending;
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edev->q_num_tx_buffers = ering->tx_pending;
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if (netif_running(edev->ndev))
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qede_reload(edev, NULL, NULL);
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return 0;
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}
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static void qede_update_mtu(struct qede_dev *edev, union qede_reload_args *args)
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{
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edev->ndev->mtu = args->mtu;
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@ -424,6 +466,8 @@ static const struct ethtool_ops qede_ethtool_ops = {
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.get_msglevel = qede_get_msglevel,
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.set_msglevel = qede_set_msglevel,
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.get_link = qede_get_link,
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.get_ringparam = qede_get_ringparam,
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.set_ringparam = qede_set_ringparam,
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.get_strings = qede_get_strings,
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.get_ethtool_stats = qede_get_ethtool_stats,
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.get_sset_count = qede_get_sset_count,
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