backfire: generic: rtl8366: move common VLAN handling functions to rtl8366_smi.c...

[openwrt-10.03/.git] / target / linux / generic-2.6 / files / drivers / net / phy / rtl8366_smi.c

diff --git a/target/linux/generic-2.6/files/drivers/net/phy/rtl8366_smi.c b/target/linux/generic-2.6/files/drivers/net/phy/rtl8366_smi.c
index bb2e3ba68f5da43dd9f02aa3c66a095c87c249a8..dacb465946d9187e26ee06b3cf328b1f9a1e1c19 100644 (file)
--- a/target/linux/generic-2.6/files/drivers/net/phy/rtl8366_smi.c
+++ b/target/linux/generic-2.6/files/drivers/net/phy/rtl8366_smi.c
@@ -281,6 +281,209 @@ int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data)
 }
 EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr);
 
+static int rtl8366_mc_is_used(struct rtl8366_smi *smi, int mc_index, int *used)
+{
+       int err;
+       int i;
+
+       *used = 0;
+       for (i = 0; i < smi->num_ports; i++) {
+               int index = 0;
+
+               err = smi->ops->get_mc_index(smi, i, &index);
+               if (err)
+                       return err;
+
+               if (mc_index == index) {
+                       *used = 1;
+                       break;
+               }
+       }
+
+       return 0;
+}
+
+int rtl8366_set_vlan(struct rtl8366_smi *smi, int vid, u32 member, u32 untag,
+                    u32 fid)
+{
+       struct rtl8366_vlan_4k vlan4k;
+       int err;
+       int i;
+
+       /* Update the 4K table */
+       err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
+       if (err)
+               return err;
+
+       vlan4k.member = member;
+       vlan4k.untag = untag;
+       vlan4k.fid = fid;
+       err = smi->ops->set_vlan_4k(smi, &vlan4k);
+       if (err)
+               return err;
+
+       /* Try to find an existing MC entry for this VID */
+       for (i = 0; i < smi->num_vlan_mc; i++) {
+               struct rtl8366_vlan_mc vlanmc;
+
+               err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
+               if (err)
+                       return err;
+
+               if (vid == vlanmc.vid) {
+                       /* update the MC entry */
+                       vlanmc.member = member;
+                       vlanmc.untag = untag;
+                       vlanmc.fid = fid;
+
+                       err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
+                       break;
+               }
+       }
+
+       return err;
+}
+EXPORT_SYMBOL_GPL(rtl8366_set_vlan);
+
+int rtl8366_reset_vlan(struct rtl8366_smi *smi)
+{
+       struct rtl8366_vlan_mc vlanmc;
+       int err;
+       int i;
+
+       /* clear VLAN member configurations */
+       vlanmc.vid = 0;
+       vlanmc.priority = 0;
+       vlanmc.member = 0;
+       vlanmc.untag = 0;
+       vlanmc.fid = 0;
+       for (i = 0; i < smi->num_vlan_mc; i++) {
+               err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
+               if (err)
+                       return err;
+       }
+
+       for (i = 0; i < smi->num_ports; i++) {
+               if (i == smi->cpu_port)
+                       continue;
+
+               err = rtl8366_set_vlan(smi, (i + 1),
+                                       (1 << i) | (1 << smi->cpu_port),
+                                       (1 << i) | (1 << smi->cpu_port),
+                                       0);
+               if (err)
+                       return err;
+
+               err = rtl8366_set_pvid(smi, i, (i + 1));
+               if (err)
+                       return err;
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(rtl8366_reset_vlan);
+
+int rtl8366_get_pvid(struct rtl8366_smi *smi, int port, int *val)
+{
+       struct rtl8366_vlan_mc vlanmc;
+       int err;
+       int index;
+
+       err = smi->ops->get_mc_index(smi, port, &index);
+       if (err)
+               return err;
+
+       err = smi->ops->get_vlan_mc(smi, index, &vlanmc);
+       if (err)
+               return err;
+
+       *val = vlanmc.vid;
+       return 0;
+}
+EXPORT_SYMBOL_GPL(rtl8366_get_pvid);
+
+int rtl8366_set_pvid(struct rtl8366_smi *smi, unsigned port, unsigned vid)
+{
+       struct rtl8366_vlan_mc vlanmc;
+       struct rtl8366_vlan_4k vlan4k;
+       int err;
+       int i;
+
+       /* Try to find an existing MC entry for this VID */
+       for (i = 0; i < smi->num_vlan_mc; i++) {
+               err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
+               if (err)
+                       return err;
+
+               if (vid == vlanmc.vid) {
+                       err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
+                       if (err)
+                               return err;
+
+                       err = smi->ops->set_mc_index(smi, port, i);
+                       return err;
+               }
+       }
+
+       /* We have no MC entry for this VID, try to find an empty one */
+       for (i = 0; i < smi->num_vlan_mc; i++) {
+               err = smi->ops->get_vlan_mc(smi, i, &vlanmc);
+               if (err)
+                       return err;
+
+               if (vlanmc.vid == 0 && vlanmc.member == 0) {
+                       /* Update the entry from the 4K table */
+                       err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
+                       if (err)
+                               return err;
+
+                       vlanmc.vid = vid;
+                       vlanmc.member = vlan4k.member;
+                       vlanmc.untag = vlan4k.untag;
+                       vlanmc.fid = vlan4k.fid;
+                       err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
+                       if (err)
+                               return err;
+
+                       err = smi->ops->set_mc_index(smi, port, i);
+                       return err;
+               }
+       }
+
+       /* MC table is full, try to find an unused entry and replace it */
+       for (i = 0; i < smi->num_vlan_mc; i++) {
+               int used;
+
+               err = rtl8366_mc_is_used(smi, i, &used);
+               if (err)
+                       return err;
+
+               if (!used) {
+                       /* Update the entry from the 4K table */
+                       err = smi->ops->get_vlan_4k(smi, vid, &vlan4k);
+                       if (err)
+                               return err;
+
+                       vlanmc.vid = vid;
+                       vlanmc.member = vlan4k.member;
+                       vlanmc.untag = vlan4k.untag;
+                       vlanmc.fid = vlan4k.fid;
+                       err = smi->ops->set_vlan_mc(smi, i, &vlanmc);
+                       if (err)
+                               return err;
+
+                       err = smi->ops->set_mc_index(smi, port, i);
+                       return err;
+               }
+       }
+
+       dev_err(smi->parent,
+               "all VLAN member configurations are in use\n");
+
+       return -ENOSPC;
+}
+EXPORT_SYMBOL_GPL(rtl8366_set_pvid);
+
 static int rtl8366_smi_mii_init(struct rtl8366_smi *smi)
 {
        int ret;