From d552fa84cb3573eb86b6722329f5e72c3ed9029e Mon Sep 17 00:00:00 2001 From: Sudarsana Reddy Kalluru Date: Tue, 21 Jun 2016 09:36:22 -0400 Subject: [PATCH] qede: Add support for coalescing config read/update. Signed-off-by: Sudarsana Reddy Kalluru Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- .../net/ethernet/qlogic/qede/qede_ethtool.c | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c index 6836d44b6b89..6228482bf7f0 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c +++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c @@ -426,6 +426,57 @@ static u32 qede_get_link(struct net_device *dev) return current_link.link_up; } +static int qede_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *coal) +{ + struct qede_dev *edev = netdev_priv(dev); + + memset(coal, 0, sizeof(struct ethtool_coalesce)); + edev->ops->common->get_coalesce(edev->cdev, + (u16 *)&coal->rx_coalesce_usecs, + (u16 *)&coal->tx_coalesce_usecs); + + return 0; +} + +static int qede_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *coal) +{ + struct qede_dev *edev = netdev_priv(dev); + int i, rc = 0; + u16 rxc, txc; + u8 sb_id; + + if (!netif_running(dev)) { + DP_INFO(edev, "Interface is down\n"); + return -EINVAL; + } + + if (coal->rx_coalesce_usecs > QED_COALESCE_MAX || + coal->tx_coalesce_usecs > QED_COALESCE_MAX) { + DP_INFO(edev, + "Can't support requested %s coalesce value [max supported value %d]\n", + coal->rx_coalesce_usecs > QED_COALESCE_MAX ? "rx" + : "tx", + QED_COALESCE_MAX); + return -EINVAL; + } + + rxc = (u16)coal->rx_coalesce_usecs; + txc = (u16)coal->tx_coalesce_usecs; + for_each_rss(i) { + sb_id = edev->fp_array[i].sb_info->igu_sb_id; + rc = edev->ops->common->set_coalesce(edev->cdev, rxc, txc, + (u8)i, sb_id); + if (rc) { + DP_INFO(edev, "Set coalesce error, rc = %d\n", rc); + return rc; + } + } + + return rc; +} + static void qede_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering) { @@ -1139,6 +1190,8 @@ static const struct ethtool_ops qede_ethtool_ops = { .set_msglevel = qede_set_msglevel, .nway_reset = qede_nway_reset, .get_link = qede_get_link, + .get_coalesce = qede_get_coalesce, + .set_coalesce = qede_set_coalesce, .get_ringparam = qede_get_ringparam, .set_ringparam = qede_set_ringparam, .get_pauseparam = qede_get_pauseparam, -- 2.20.1