From be273dc197eb84304b740db8965a2103005c49ba Mon Sep 17 00:00:00 2001 From: Himanshu Madhani Date: Wed, 24 Apr 2013 12:42:42 +0000 Subject: qlcnic: Enable Interrupt Coalescing for 83xx adapter Enable Interrupt coalescing through ethtool on 83xx adapter. Signed-off-by: Himanshu Madhani Signed-off-by: Shahed Shaikh Signed-off-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c | 68 +++++++++++++++++----- 1 file changed, 55 insertions(+), 13 deletions(-) (limited to 'drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c') diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c index 629d901637e1..08efb4635007 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c @@ -1303,6 +1303,9 @@ static int qlcnic_set_intr_coalesce(struct net_device *netdev, struct ethtool_coalesce *ethcoal) { struct qlcnic_adapter *adapter = netdev_priv(netdev); + struct qlcnic_nic_intr_coalesce *coal; + u32 rx_coalesce_usecs, rx_max_frames; + u32 tx_coalesce_usecs, tx_max_frames; if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) return -EINVAL; @@ -1313,8 +1316,8 @@ static int qlcnic_set_intr_coalesce(struct net_device *netdev, */ if (ethcoal->rx_coalesce_usecs > 0xffff || ethcoal->rx_max_coalesced_frames > 0xffff || - ethcoal->tx_coalesce_usecs || - ethcoal->tx_max_coalesced_frames || + ethcoal->tx_coalesce_usecs > 0xffff || + ethcoal->tx_max_coalesced_frames > 0xffff || ethcoal->rx_coalesce_usecs_irq || ethcoal->rx_max_coalesced_frames_irq || ethcoal->tx_coalesce_usecs_irq || @@ -1334,18 +1337,55 @@ static int qlcnic_set_intr_coalesce(struct net_device *netdev, ethcoal->tx_max_coalesced_frames_high) return -EINVAL; - if (!ethcoal->rx_coalesce_usecs || - !ethcoal->rx_max_coalesced_frames) { - adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT; - adapter->ahw->coal.rx_time_us = - QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US; - adapter->ahw->coal.rx_packets = - QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS; + coal = &adapter->ahw->coal; + + if (qlcnic_83xx_check(adapter)) { + if (!ethcoal->tx_coalesce_usecs || + !ethcoal->tx_max_coalesced_frames || + !ethcoal->rx_coalesce_usecs || + !ethcoal->rx_max_coalesced_frames) { + coal->flag = QLCNIC_INTR_DEFAULT; + coal->type = QLCNIC_INTR_COAL_TYPE_RX; + coal->rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US; + coal->rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS; + coal->tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US; + coal->tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS; + } else { + tx_coalesce_usecs = ethcoal->tx_coalesce_usecs; + tx_max_frames = ethcoal->tx_max_coalesced_frames; + rx_coalesce_usecs = ethcoal->rx_coalesce_usecs; + rx_max_frames = ethcoal->rx_max_coalesced_frames; + coal->flag = 0; + + if ((coal->rx_time_us == rx_coalesce_usecs) && + (coal->rx_packets == rx_max_frames)) { + coal->type = QLCNIC_INTR_COAL_TYPE_TX; + coal->tx_time_us = tx_coalesce_usecs; + coal->tx_packets = tx_max_frames; + } else if ((coal->tx_time_us == tx_coalesce_usecs) && + (coal->tx_packets == tx_max_frames)) { + coal->type = QLCNIC_INTR_COAL_TYPE_RX; + coal->rx_time_us = rx_coalesce_usecs; + coal->rx_packets = rx_max_frames; + } else { + coal->type = QLCNIC_INTR_COAL_TYPE_RX; + coal->rx_time_us = rx_coalesce_usecs; + coal->rx_packets = rx_max_frames; + coal->tx_time_us = tx_coalesce_usecs; + coal->tx_packets = tx_max_frames; + } + } } else { - adapter->ahw->coal.flag = 0; - adapter->ahw->coal.rx_time_us = ethcoal->rx_coalesce_usecs; - adapter->ahw->coal.rx_packets = - ethcoal->rx_max_coalesced_frames; + if (!ethcoal->rx_coalesce_usecs || + !ethcoal->rx_max_coalesced_frames) { + coal->flag = QLCNIC_INTR_DEFAULT; + coal->rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US; + coal->rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS; + } else { + coal->flag = 0; + coal->rx_time_us = ethcoal->rx_coalesce_usecs; + coal->rx_packets = ethcoal->rx_max_coalesced_frames; + } } qlcnic_config_intr_coalesce(adapter); @@ -1363,6 +1403,8 @@ static int qlcnic_get_intr_coalesce(struct net_device *netdev, ethcoal->rx_coalesce_usecs = adapter->ahw->coal.rx_time_us; ethcoal->rx_max_coalesced_frames = adapter->ahw->coal.rx_packets; + ethcoal->tx_coalesce_usecs = adapter->ahw->coal.tx_time_us; + ethcoal->tx_max_coalesced_frames = adapter->ahw->coal.tx_packets; return 0; } -- cgit v1.2.3-59-g8ed1b