Dear Yiannis,
It is done. After modify the driver source file ag71xx_ar7240.c to add the
enable_learning attribute with help of the reference, tl-wr841n work well
under openflow implementation, at least ping success.
The modification is follow:
file path:
openwrt/build_dir/linux-ar71xx_generic/linux-3.3.8/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
modification of the structure switch_attr:
static struct switch_attr ar7240_globals[] = {
{
.type = SWITCH_TYPE_INT,
.name = "enable_learning",
.description = "Enable learning",
.set = ar7240_set_learning_enable,
.get = ar7240_get_learning_enable,
.max = 1
}, {
.type = SWITCH_TYPE_INT,
.name = "enable_vlan",
.description = "Enable VLAN mode",
.set = ar7240_set_vlan,
.get = ar7240_get_vlan,
.max = 1
},
};
add the set function:
ar7240_set_learning_enable(struct switch_dev *dev, const struct switch_attr
*attr, struct switch_val *val)
{
struct ar7240sw *as = sw_to_ar7240(dev);
int i;
u32 v;
for (i = 0; i < AR7240_NUM_PORTS; i++) {
v = ar7240sw_reg_read(as->mii_bus,AR7240_REG_PORT_CTRL(i));
v &= ~AR7240_PORT_CTRL_LEARN;
if (val->value.i){
/* Enable port learning for ALL */
v |= AR7240_PORT_CTRL_LEARN;
}
ar7240sw_reg_write(as->mii_bus, AR7240_REG_PORT_CTRL(i), v);
}
return 0;
}
add the get function：
static int
ar7240_get_learning_enable(struct switch_dev *dev, const struct switch_attr
*attr, struct switch_val *val)
{
struct ar7240sw *as = sw_to_ar7240(dev);
u32 v;
v = ar7240sw_reg_read(as->mii_bus, AR7240_REG_PORT_CTRL(0));
v &= AR7240_PORT_CTRL_LEARN;
if (v == AR7240_PORT_CTRL_LEARN){
val->value.i = 1;
}
else {
val->value.i = 0;
}
return 0;
}
Thanks for the reference：
http://permalink.gmane.org/gmane.network.routing.openflow.general/1159
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