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84 lines
3.0 KiB
Diff
84 lines
3.0 KiB
Diff
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From 0a5243abf168351ea8409caf329448a3e18ab62f Mon Sep 17 00:00:00 2001
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From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
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Date: Tue, 24 Sep 2019 13:24:40 +0300
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Subject: [PATCH] dpaa2-eth: Re-add get_link_ksettings ethtool op
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Which was removed from upstream driver since without a MAC driver
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we have no support for changing link parameters there.
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Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
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---
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.../net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 47 +++++++++++++++++++++-
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1 file changed, 46 insertions(+), 1 deletion(-)
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--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
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+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
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@@ -85,7 +85,8 @@ dpaa2_eth_get_link_ksettings(struct net_
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{
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struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
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- link_settings->base.autoneg = AUTONEG_DISABLE;
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+ if (priv->link_state.options & DPNI_LINK_OPT_AUTONEG)
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+ link_settings->base.autoneg = AUTONEG_ENABLE;
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if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX))
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link_settings->base.duplex = DUPLEX_FULL;
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link_settings->base.speed = priv->link_state.rate;
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@@ -93,6 +94,49 @@ dpaa2_eth_get_link_ksettings(struct net_
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return 0;
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}
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+#define DPNI_DYNAMIC_LINK_SET_VER_MAJOR 7
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+#define DPNI_DYNAMIC_LINK_SET_VER_MINOR 1
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+static int
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+dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
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+ const struct ethtool_link_ksettings *link_settings)
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+{
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+ struct dpni_link_cfg cfg = {0};
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+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
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+ int err = 0;
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+
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+ /* If using an older MC version, the DPNI must be down
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+ * in order to be able to change link settings. Taking steps to let
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+ * the user know that.
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+ */
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+ if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_DYNAMIC_LINK_SET_VER_MAJOR,
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+ DPNI_DYNAMIC_LINK_SET_VER_MINOR) < 0) {
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+ if (netif_running(net_dev)) {
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+ netdev_info(net_dev, "Interface must be brought down first.\n");
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+ return -EACCES;
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+ }
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+ }
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+
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+ cfg.rate = link_settings->base.speed;
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+ cfg.options = priv->link_state.options;
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+ if (link_settings->base.autoneg == AUTONEG_ENABLE)
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+ cfg.options |= DPNI_LINK_OPT_AUTONEG;
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+ else
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+ cfg.options &= ~DPNI_LINK_OPT_AUTONEG;
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+ if (link_settings->base.duplex == DUPLEX_HALF)
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+ cfg.options |= DPNI_LINK_OPT_HALF_DUPLEX;
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+ else
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+ cfg.options &= ~DPNI_LINK_OPT_HALF_DUPLEX;
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+
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+ err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
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+ if (err)
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+ /* ethtool will be loud enough if we return an error; no point
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+ * in putting our own error message on the console by default
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+ */
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+ netdev_dbg(net_dev, "ERROR %d setting link cfg\n", err);
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+
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+ return err;
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+}
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+
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static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
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struct ethtool_pauseparam *pause)
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{
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@@ -734,6 +778,7 @@ const struct ethtool_ops dpaa2_ethtool_o
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.get_drvinfo = dpaa2_eth_get_drvinfo,
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.get_link = ethtool_op_get_link,
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.get_link_ksettings = dpaa2_eth_get_link_ksettings,
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+ .set_link_ksettings = dpaa2_eth_set_link_ksettings,
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.get_pauseparam = dpaa2_eth_get_pauseparam,
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.set_pauseparam = dpaa2_eth_set_pauseparam,
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.get_sset_count = dpaa2_eth_get_sset_count,
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