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Date: Mon, 11 Apr 2016 13:03:52 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: Andrew Lunn <andrew@...n.ch>, David Miller <davem@...emloft.net>
Cc: netdev <netdev@...r.kernel.org>,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: Re: [PATCH net-next 6/7] dsa: Rename phys_port_mask to user_port_mask
On 11/04/16 12:50, Andrew Lunn wrote:
> The phys in phys_port_mask suggests this mask is about PHYs. In fact,
> it means physical ports. Rename to user_port_mask, indicating user
> ports of the switch, which is hopefully less confusing.
Even though the change looks fine in principle, I am more worried about
the difficulty for people to backport fixes because of the renaming
happening here. How about "enabled_ports_mask" as a name? Did not
Guenter had a helper function at some point which tested for (1 << port
& ds->phys_port_mask)?
>
> Signed-off-by: Andrew Lunn <andrew@...n.ch>
> ---
> drivers/net/dsa/bcm_sf2.c | 10 +++++-----
> drivers/net/dsa/mv88e6060.c | 2 +-
> include/net/dsa.h | 4 ++--
> net/dsa/dsa.c | 8 ++++----
> 4 files changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index 50caa525cda3..e1e8070fb9f9 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -160,7 +160,7 @@ static void bcm_sf2_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
> * the same VLAN.
> */
> for (i = 0; i < priv->hw_params.num_ports; i++) {
> - if (!((1 << i) & ds->phys_port_mask))
> + if (!((1 << i) & ds->user_port_mask))
> continue;
>
> reg = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(i));
> @@ -1009,7 +1009,7 @@ static int bcm_sf2_sw_setup(struct dsa_switch *ds)
> /* Enable all valid ports and disable those unused */
> for (port = 0; port < priv->hw_params.num_ports; port++) {
> /* IMP port receives special treatment */
> - if ((1 << port) & ds->phys_port_mask)
> + if ((1 << port) & ds->user_port_mask)
> bcm_sf2_port_setup(ds, port, NULL);
> else if (dsa_is_cpu_port(ds, port))
> bcm_sf2_imp_setup(ds, port);
> @@ -1022,7 +1022,7 @@ static int bcm_sf2_sw_setup(struct dsa_switch *ds)
> * 7445D0, since 7445E0 disconnects the internal switch pseudo-PHY such
> * that we can use the regular SWITCH_MDIO master controller instead.
> *
> - * By default, DSA initializes ds->phys_mii_mask to ds->phys_port_mask
> + * By default, DSA initializes ds->phys_mii_mask to ds->user_port_mask
> * to have a 1:1 mapping between Port address and PHY address in order
> * to utilize the slave_mii_bus instance to read from Port PHYs. This is
> * not what we want here, so we initialize phys_mii_mask 0 to always
> @@ -1284,7 +1284,7 @@ static int bcm_sf2_sw_suspend(struct dsa_switch *ds)
> * bcm_sf2_sw_setup
> */
> for (port = 0; port < DSA_MAX_PORTS; port++) {
> - if ((1 << port) & ds->phys_port_mask ||
> + if ((1 << port) & ds->user_port_mask ||
> dsa_is_cpu_port(ds, port))
> bcm_sf2_port_disable(ds, port, NULL);
> }
> @@ -1308,7 +1308,7 @@ static int bcm_sf2_sw_resume(struct dsa_switch *ds)
> bcm_sf2_gphy_enable_set(ds, true);
>
> for (port = 0; port < DSA_MAX_PORTS; port++) {
> - if ((1 << port) & ds->phys_port_mask)
> + if ((1 << port) & ds->user_port_mask)
> bcm_sf2_port_setup(ds, port, NULL);
> else if (dsa_is_cpu_port(ds, port))
> bcm_sf2_imp_setup(ds, port);
> diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
> index adb608ccd9aa..0ba0d413cf73 100644
> --- a/drivers/net/dsa/mv88e6060.c
> +++ b/drivers/net/dsa/mv88e6060.c
> @@ -170,7 +170,7 @@ static int mv88e6060_setup_port(struct dsa_switch *ds, int p)
> REG_WRITE(addr, PORT_VLAN_MAP,
> ((p & 0xf) << PORT_VLAN_MAP_DBNUM_SHIFT) |
> (dsa_is_cpu_port(ds, p) ?
> - ds->phys_port_mask :
> + ds->user_port_mask :
> BIT(ds->dst->cpu_port)));
>
> /* Port Association Vector: when learning source addresses
> diff --git a/include/net/dsa.h b/include/net/dsa.h
> index 165c2e10615c..b36c2a5c206f 100644
> --- a/include/net/dsa.h
> +++ b/include/net/dsa.h
> @@ -167,7 +167,7 @@ struct dsa_switch {
> * Slave mii_bus and devices for the individual ports.
> */
> u32 dsa_port_mask;
> - u32 phys_port_mask;
> + u32 user_port_mask;
> u32 phys_mii_mask;
> struct mii_bus *slave_mii_bus;
> struct net_device *ports[DSA_MAX_PORTS];
> @@ -185,7 +185,7 @@ static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
>
> static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
> {
> - return ds->phys_port_mask & (1 << p) && ds->ports[p];
> + return ds->user_port_mask & (1 << p) && ds->ports[p];
> }
>
> static inline u8 dsa_upstream_port(struct dsa_switch *ds)
> diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
> index 14bf12f637d2..20293d1a5a93 100644
> --- a/net/dsa/dsa.c
> +++ b/net/dsa/dsa.c
> @@ -246,7 +246,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
> } else if (!strcmp(name, "dsa")) {
> ds->dsa_port_mask |= 1 << i;
> } else {
> - ds->phys_port_mask |= 1 << i;
> + ds->user_port_mask |= 1 << i;
> }
> valid_name_found = true;
> }
> @@ -259,7 +259,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
> /* Make the built-in MII bus mask match the number of ports,
> * switch drivers can override this later
> */
> - ds->phys_mii_mask = ds->phys_port_mask;
> + ds->phys_mii_mask = ds->user_port_mask;
>
> /*
> * If the CPU connects to this switch, set the switch tree
> @@ -325,7 +325,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
> * Create network devices for physical switch ports.
> */
> for (i = 0; i < DSA_MAX_PORTS; i++) {
> - if (!(ds->phys_port_mask & (1 << i)))
> + if (!(ds->user_port_mask & (1 << i)))
> continue;
>
> ret = dsa_slave_create(ds, parent, i, pd->port_names[i]);
> @@ -435,7 +435,7 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
>
> /* Destroy network devices for physical switch ports. */
> for (port = 0; port < DSA_MAX_PORTS; port++) {
> - if (!(ds->phys_port_mask & (1 << port)))
> + if (!(ds->user_port_mask & (1 << port)))
> continue;
>
> if (!ds->ports[port])
>
--
Florian
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