Commit ee6a2db2 authored by Christian Marangi's avatar Christian Marangi Committed by Paolo Abeni
Browse files

net: dsa: mt7530: generalize read port stats logic 



In preparation for migration to use of standard MIB API, generalize the
read port stats logic to a dedicated function.

This will permit to manually provide the offset and size of the MIB
counter to directly access specific counter.

Signed-off-by: default avatarChristian Marangi <ansuelsmth@gmail.com>
Link: https://patch.msgid.link/20250410163022.3695-2-ansuelsmth@gmail.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 0f2be576

drivers/net/dsa/mt7530.c

+18 −8
Original line number Diff line number Diff line
@@ -789,24 +789,34 @@ mt7530_get_strings(struct dsa_switch *ds, int port, u32 stringset, 
		ethtool_puts(&data, mt7530_mib[i].name);

}



static void

mt7530_read_port_stats(struct mt7530_priv *priv, int port,

		       u32 offset, u8 size, uint64_t *data)

{

	u32 val, reg = MT7530_PORT_MIB_COUNTER(port) + offset;



	val = mt7530_read(priv, reg);

	*data = val;



	if (size == 2) {

		val = mt7530_read(priv, reg + 4);

		*data |= (u64)val << 32;

	}

}



static void

mt7530_get_ethtool_stats(struct dsa_switch *ds, int port,

			 uint64_t *data)

{

	struct mt7530_priv *priv = ds->priv;

	const struct mt7530_mib_desc *mib;

	u32 reg, i;

	u64 hi;

	int i;



	for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++) {

		mib = &mt7530_mib[i];

		reg = MT7530_PORT_MIB_COUNTER(port) + mib->offset;



		data[i] = mt7530_read(priv, reg);

		if (mib->size == 2) {

			hi = mt7530_read(priv, reg + 4);

			data[i] |= hi << 32;

		}

		mt7530_read_port_stats(priv, port, mib->offset, mib->size,

				       data + i);

	}

}