From 2eed5a8b614bc0197b29da7b21a78d2c564a7098 Mon Sep 17 00:00:00 2001 From: Luo bin Date: Tue, 2 Jun 2020 08:40:32 +0800 Subject: hinic: add set_channels ethtool_ops support add support to change TX/RX queue number with "ethtool -L combined". V5 -> V6: remove check for carrier in hinic_xmit_frame V4 -> V5: change time zone in patch header V3 -> V4: update date in patch header V2 -> V3: remove check for zero channels->combined_count V1 -> V2: update commit message("ethtool -L" to "ethtool -L combined") V0 -> V1: remove check for channels->tx_count/rx_count/other_count Signed-off-by: Luo bin Signed-off-by: David S. Miller --- drivers/net/ethernet/huawei/hinic/hinic_ethtool.c | 40 ++++++++++++++++++----- drivers/net/ethernet/huawei/hinic/hinic_main.c | 2 +- 2 files changed, 33 insertions(+), 9 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c index ace18d258049..efb02e03e7da 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c @@ -619,14 +619,37 @@ static void hinic_get_channels(struct net_device *netdev, struct hinic_dev *nic_dev = netdev_priv(netdev); struct hinic_hwdev *hwdev = nic_dev->hwdev; - channels->max_rx = hwdev->nic_cap.max_qps; - channels->max_tx = hwdev->nic_cap.max_qps; - channels->max_other = 0; - channels->max_combined = 0; - channels->rx_count = hinic_hwdev_num_qps(hwdev); - channels->tx_count = hinic_hwdev_num_qps(hwdev); - channels->other_count = 0; - channels->combined_count = 0; + channels->max_combined = nic_dev->max_qps; + channels->combined_count = hinic_hwdev_num_qps(hwdev); +} + +static int hinic_set_channels(struct net_device *netdev, + struct ethtool_channels *channels) +{ + struct hinic_dev *nic_dev = netdev_priv(netdev); + unsigned int count = channels->combined_count; + int err; + + netif_info(nic_dev, drv, netdev, "Set max combined queue number from %d to %d\n", + hinic_hwdev_num_qps(nic_dev->hwdev), count); + + if (netif_running(netdev)) { + netif_info(nic_dev, drv, netdev, "Restarting netdev\n"); + hinic_close(netdev); + + nic_dev->hwdev->nic_cap.num_qps = count; + + err = hinic_open(netdev); + if (err) { + netif_err(nic_dev, drv, netdev, + "Failed to open netdev\n"); + return -EFAULT; + } + } else { + nic_dev->hwdev->nic_cap.num_qps = count; + } + + return 0; } static int hinic_get_rss_hash_opts(struct hinic_dev *nic_dev, @@ -1219,6 +1242,7 @@ static const struct ethtool_ops hinic_ethtool_ops = { .get_ringparam = hinic_get_ringparam, .set_ringparam = hinic_set_ringparam, .get_channels = hinic_get_channels, + .set_channels = hinic_set_channels, .get_rxnfc = hinic_get_rxnfc, .set_rxnfc = hinic_set_rxnfc, .get_rxfh_key_size = hinic_get_rxfh_key_size, diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c index c8ab129a7ae8..e9e6f4c9309a 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_main.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c @@ -326,7 +326,6 @@ static void hinic_enable_rss(struct hinic_dev *nic_dev) int i, node, err = 0; u16 num_cpus = 0; - nic_dev->max_qps = hinic_hwdev_max_num_qps(hwdev); if (nic_dev->max_qps <= 1) { nic_dev->flags &= ~HINIC_RSS_ENABLE; nic_dev->rss_limit = nic_dev->max_qps; @@ -1031,6 +1030,7 @@ static int nic_dev_init(struct pci_dev *pdev) nic_dev->rq_depth = HINIC_RQ_DEPTH; nic_dev->sriov_info.hwdev = hwdev; nic_dev->sriov_info.pdev = pdev; + nic_dev->max_qps = num_qps; sema_init(&nic_dev->mgmt_lock, 1); -- cgit v1.2.3