Re: [PATCH net-next 3/9] net: dsa: mv88e6xxx: program the PVT with all ones

From: Andrew Lunn
Date: Thu Mar 30 2017 - 09:45:28 EST


> + for (dev = 0; dev < 32; ++dev) {
> + for (port = 0; port < 16; ++port) {
> + err = mv88e6xxx_pvt_map(chip, dev, port);
> + if (err)
> + return err;
> + }
> + }
> +
> + return 0;

Hi Vivien

How about adding MV88E6XXX_MAX_PVT_SWITCHES and MV88E6XXX_MAX_PVT_PORTS?


> +static int mv88e6xxx_g2_pvt_op(struct mv88e6xxx_chip *chip, int src_dev,
> + int src_port, u16 op)
> +{
> + int err;
> +
> + /* 9-bit Cross-chip PVT pointer: with GLOBAL2_MISC_5_BIT_PORT cleared,
> + * source device is 5-bit, source port is 4-bit.
> + */
> + op |= (src_dev & 0x1f) << 4;
> + op |= (src_port & 0xf);

So here, are you hard coding the knowledge that we passed false to
mv88e6xxx_g2_misc_5_bit_port()? It kind of defeats the point of
having the parameter. Maybe simplify the code and remove the
parameter?

Andrew