ddcebda08b
Add kernel tag that introduced the patch on backport patch. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
79 lines
2.5 KiB
Diff
79 lines
2.5 KiB
Diff
From 6a3bdc5209f45d2af83aa92433ab6e5cf2297aa4 Mon Sep 17 00:00:00 2001
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From: Ansuel Smith <ansuelsmth@gmail.com>
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Date: Mon, 22 Nov 2021 16:23:47 +0100
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Subject: net: dsa: qca8k: add set_ageing_time support
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qca8k support setting ageing time in step of 7s. Add support for it and
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set the max value accepted of 7645m.
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Documentation talks about support for 10000m but that values doesn't
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make sense as the value doesn't match the max value in the reg.
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Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
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Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/qca8k.c | 25 +++++++++++++++++++++++++
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drivers/net/dsa/qca8k.h | 3 +++
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2 files changed, 28 insertions(+)
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--- a/drivers/net/dsa/qca8k.c
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+++ b/drivers/net/dsa/qca8k.c
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@@ -1261,6 +1261,10 @@ qca8k_setup(struct dsa_switch *ds)
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/* We don't have interrupts for link changes, so we need to poll */
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ds->pcs_poll = true;
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+ /* Set min a max ageing value supported */
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+ ds->ageing_time_min = 7000;
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+ ds->ageing_time_max = 458745000;
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+
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return 0;
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}
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@@ -1801,6 +1805,26 @@ qca8k_port_fast_age(struct dsa_switch *d
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}
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static int
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+qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
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+{
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+ struct qca8k_priv *priv = ds->priv;
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+ unsigned int secs = msecs / 1000;
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+ u32 val;
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+
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+ /* AGE_TIME reg is set in 7s step */
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+ val = secs / 7;
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+
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+ /* Handle case with 0 as val to NOT disable
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+ * learning
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+ */
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+ if (!val)
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+ val = 1;
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+
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+ return regmap_update_bits(priv->regmap, QCA8K_REG_ATU_CTRL, QCA8K_ATU_AGE_TIME_MASK,
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+ QCA8K_ATU_AGE_TIME(val));
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+}
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+
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+static int
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qca8k_port_enable(struct dsa_switch *ds, int port,
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struct phy_device *phy)
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{
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@@ -2018,6 +2042,7 @@ static const struct dsa_switch_ops qca8k
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.get_strings = qca8k_get_strings,
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.get_ethtool_stats = qca8k_get_ethtool_stats,
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.get_sset_count = qca8k_get_sset_count,
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+ .set_ageing_time = qca8k_set_ageing_time,
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.get_mac_eee = qca8k_get_mac_eee,
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.set_mac_eee = qca8k_set_mac_eee,
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.port_enable = qca8k_port_enable,
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--- a/drivers/net/dsa/qca8k.h
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+++ b/drivers/net/dsa/qca8k.h
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@@ -175,6 +175,9 @@
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#define QCA8K_VTU_FUNC1_BUSY BIT(31)
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#define QCA8K_VTU_FUNC1_VID_MASK GENMASK(27, 16)
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#define QCA8K_VTU_FUNC1_FULL BIT(4)
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+#define QCA8K_REG_ATU_CTRL 0x618
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+#define QCA8K_ATU_AGE_TIME_MASK GENMASK(15, 0)
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+#define QCA8K_ATU_AGE_TIME(x) FIELD_PREP(QCA8K_ATU_AGE_TIME_MASK, (x))
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#define QCA8K_REG_GLOBAL_FW_CTRL0 0x620
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#define QCA8K_GLOBAL_FW_CTRL0_CPU_PORT_EN BIT(10)
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#define QCA8K_REG_GLOBAL_FW_CTRL1 0x624
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