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net: dsa: Allow the DSA driver to indicate the tag protocol

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DSA drivers may drive different families of switches which need
different tag protocol. Rather than hard code the tag protocol in the
driver structure, have a callback for the DSA core to call.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2016-08-22 16:01:01 +02:00 committed by David S. Miller
parent 1ae292a245
commit 7b314362a2
7 changed files with 34 additions and 8 deletions
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7
drivers/net/dsa/b53/b53_common.c
View File

@ -1373,8 +1373,13 @@ static void b53_br_set_stp_state(struct dsa_switch *ds, int port,
b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg);
}
static enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds)
{
return DSA_TAG_PROTO_NONE;
}
static struct dsa_switch_driver b53_switch_ops = {
.tag_protocol = DSA_TAG_PROTO_NONE,
.get_tag_protocol = b53_get_tag_protocol,
.setup = b53_setup,
.set_addr = b53_set_addr,
.get_strings = b53_get_strings,

7
drivers/net/dsa/bcm_sf2.c
View File

@ -136,6 +136,11 @@ static int bcm_sf2_sw_get_sset_count(struct dsa_switch *ds)
return BCM_SF2_STATS_SIZE;
}
static enum dsa_tag_protocol bcm_sf2_sw_get_tag_protocol(struct dsa_switch *ds)
{
return DSA_TAG_PROTO_BRCM;
}
static void bcm_sf2_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
{
struct bcm_sf2_priv *priv = ds_to_priv(ds);
@ -1577,8 +1582,8 @@ static int bcm_sf2_sw_setup(struct dsa_switch *ds)
}
static struct dsa_switch_driver bcm_sf2_switch_driver = {
.tag_protocol = DSA_TAG_PROTO_BRCM,
.setup = bcm_sf2_sw_setup,
.get_tag_protocol = bcm_sf2_sw_get_tag_protocol,
.set_addr = bcm_sf2_sw_set_addr,
.get_phy_flags = bcm_sf2_sw_get_phy_flags,
.get_strings = bcm_sf2_sw_get_strings,

7
drivers/net/dsa/mv88e6060.c
View File

@ -69,6 +69,11 @@ static const char *mv88e6060_get_name(struct mii_bus *bus, int sw_addr)
return NULL;
}
static enum dsa_tag_protocol mv88e6060_get_tag_protocol(struct dsa_switch *ds)
{
return DSA_TAG_PROTO_TRAILER;
}
static const char *mv88e6060_drv_probe(struct device *dsa_dev,
struct device *host_dev, int sw_addr,
void **_priv)
@ -248,7 +253,7 @@ mv88e6060_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
}
static struct dsa_switch_driver mv88e6060_switch_driver = {
.tag_protocol = DSA_TAG_PROTO_TRAILER,
.get_tag_protocol = mv88e6060_get_tag_protocol,
.probe = mv88e6060_drv_probe,
.setup = mv88e6060_setup,
.set_addr = mv88e6060_set_addr,

7
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -3924,6 +3924,11 @@ static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
return 0;
}
static enum dsa_tag_protocol mv88e6xxx_get_tag_protocol(struct dsa_switch *ds)
{
return DSA_TAG_PROTO_EDSA;
}
static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
struct device *host_dev, int sw_addr,
void **priv)
@ -3967,8 +3972,8 @@ free:
}
static struct dsa_switch_driver mv88e6xxx_switch_driver = {
.tag_protocol = DSA_TAG_PROTO_EDSA,
.probe = mv88e6xxx_drv_probe,
.get_tag_protocol = mv88e6xxx_get_tag_protocol,
.setup = mv88e6xxx_setup,
.set_addr = mv88e6xxx_set_addr,
.adjust_link = mv88e6xxx_adjust_link,

5
include/net/dsa.h
View File

@ -239,14 +239,15 @@ struct switchdev_obj_port_vlan;
struct dsa_switch_driver {
struct list_head list;
enum dsa_tag_protocol tag_protocol;
/*
* Probing and setup.
*/
const char *(*probe)(struct device *dsa_dev,
struct device *host_dev, int sw_addr,
void **priv);
enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds);
int (*setup)(struct dsa_switch *ds);
int (*set_addr)(struct dsa_switch *ds, u8 *addr);
u32 (*get_phy_flags)(struct dsa_switch *ds, int port);

5
net/dsa/dsa.c
View File

@ -354,7 +354,10 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
* switch.
*/
if (dst->cpu_switch == index) {
dst->tag_ops = dsa_resolve_tag_protocol(drv->tag_protocol);
enum dsa_tag_protocol tag_protocol;
tag_protocol = drv->get_tag_protocol(ds);
dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
if (IS_ERR(dst->tag_ops)) {
ret = PTR_ERR(dst->tag_ops);
goto out;

4
net/dsa/dsa2.c
View File

@ -443,6 +443,7 @@ static int dsa_cpu_parse(struct device_node *port, u32 index,
struct dsa_switch_tree *dst,
struct dsa_switch *ds)
{
enum dsa_tag_protocol tag_protocol;
struct net_device *ethernet_dev;
struct device_node *ethernet;
@ -465,7 +466,8 @@ static int dsa_cpu_parse(struct device_node *port, u32 index,
dst->cpu_port = index;
}
dst->tag_ops = dsa_resolve_tag_protocol(ds->drv->tag_protocol);
tag_protocol = ds->drv->get_tag_protocol(ds);
dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
if (IS_ERR(dst->tag_ops)) {
dev_warn(ds->dev, "No tagger for this switch\n");
return PTR_ERR(dst->tag_ops);