[PATCH 2/4] cpsw_ale: add support functions for switchdev

Ilias Apalodimas
2018-05-24T06:56:39Z

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
---
drivers/net/ethernet/ti/cpsw_ale.c | 129 +++++++++++++++++++++++++++++++++++++
drivers/net/ethernet/ti/cpsw_ale.h | 8 +++
2 files changed, 137 insertions(+)

diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index 93dc05c..0b7383f 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -409,6 +409,41 @@ int cpsw_ale_del_mcast(struct cpsw_ale *ale, u8 *addr, int port_mask,
}
EXPORT_SYMBOL_GPL(cpsw_ale_del_mcast);

+static int cpsw_ale_read_mc(struct cpsw_ale *ale, u8 *addr, int flags, u16 vid)
+{
+ u32 ale_entry[ALE_ENTRY_WORDS] = {0, 0, 0};
+ int idx;
+
+ idx = cpsw_ale_match_addr(ale, addr, (flags & ALE_VLAN) ? vid : 0);
+ if (idx >= 0)
+ cpsw_ale_read(ale, idx, ale_entry);
+
+ return cpsw_ale_get_port_mask(ale_entry, ale->port_mask_bits);
+}
+
+int cpsw_ale_mcast_add_modify(struct cpsw_ale *ale, u8 *addr, int port_mask,
+ int flags, u16 vid, int mcast_state)
+{
+ int mcast_members, ret;
+
+ mcast_members = cpsw_ale_read_mc(ale, addr, flags, vid) | port_mask;
+ ret = cpsw_ale_add_mcast(ale, addr, mcast_members, flags, vid, 0);
+
+ return ret;
+}
+
+int cpsw_ale_mcast_del_modify(struct cpsw_ale *ale, u8 *addr, int port_mask,
+ int flags, u16 vid)
+{
+ int mcast_members, ret;
+
+ mcast_members = cpsw_ale_read_mc(ale, addr, flags, vid) & ~port_mask;
+ ret = cpsw_ale_del_mcast(ale, addr, mcast_members, flags, vid);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cpsw_ale_mcast_del_modify);
+
/* ALE NetCP NU switch specific vlan functions */
static void cpsw_ale_set_vlan_mcast(struct cpsw_ale *ale, u32 *ale_entry,
int reg_mcast, int unreg_mcast)
@@ -424,6 +459,52 @@ static void cpsw_ale_set_vlan_mcast(struct cpsw_ale *ale, u32 *ale_entry,
writel(unreg_mcast, ale->params.ale_regs + ALE_VLAN_MASK_MUX(idx));
}

+static int cpsw_ale_read_untagged(struct cpsw_ale *ale, u16 vid)
+{
+ u32 ale_entry[ALE_ENTRY_WORDS] = {0, 0, 0};
+ int idx;
+
+ idx = cpsw_ale_match_vlan(ale, vid);
+ if (idx >= 0)
+ cpsw_ale_read(ale, idx, ale_entry);
+
+ return cpsw_ale_get_vlan_untag_force(ale_entry, ale->vlan_field_bits);
+}
+
+/* returns mask of current members for specificed vlan */
+static int cpsw_ale_read_vlan_members(struct cpsw_ale *ale, u16 vid)
+{
+ u32 ale_entry[ALE_ENTRY_WORDS] = {0, 0, 0};
+ int idx;
+
+ idx = cpsw_ale_match_vlan(ale, vid);
+ if (idx >= 0)
+ cpsw_ale_read(ale, idx, ale_entry);
+
+ return cpsw_ale_get_vlan_member_list(ale_entry, ale->vlan_field_bits);
+}
+
+/* returns mask of registered/unregistered multicast registration */
+static int cpsw_ale_read_reg_unreg_mc(struct cpsw_ale *ale, u16 vid, bool unreg)
+{
+ u32 ale_entry[ALE_ENTRY_WORDS] = {0, 0, 0};
+ int idx;
+ int ret;
+
+ idx = cpsw_ale_match_vlan(ale, vid);
+ if (idx >= 0)
+ cpsw_ale_read(ale, idx, ale_entry);
+
+ if (unreg)
+ ret = cpsw_ale_get_vlan_unreg_mcast(ale_entry,
+ ale->vlan_field_bits);
+ else
+ ret = cpsw_ale_get_vlan_reg_mcast(ale_entry,
+ ale->vlan_field_bits);
+
+ return ret;
+}
+
int cpsw_ale_add_vlan(struct cpsw_ale *ale, u16 vid, int port, int untag,
int reg_mcast, int unreg_mcast)
{
@@ -482,6 +563,54 @@ int cpsw_ale_del_vlan(struct cpsw_ale *ale, u16 vid, int port_mask)
}
EXPORT_SYMBOL_GPL(cpsw_ale_del_vlan);

+int cpsw_ale_vlan_add_modify(struct cpsw_ale *ale, u16 vid, int port_mask,
+ int untag_mask, int reg_mask, int unreg_mask)
+{
+ int ret = 0;
+ int vlan_members = cpsw_ale_read_vlan_members(ale, vid) & ~port_mask;
+ int reg_mcast_members =
+ cpsw_ale_read_reg_unreg_mc(ale, vid, 0) & ~port_mask;
+ int unreg_mcast_members =
+ cpsw_ale_read_reg_unreg_mc(ale, vid, 1) & ~port_mask;
+ int untag_members = cpsw_ale_read_untagged(ale, vid) & ~port_mask;
+
+ vlan_members |= port_mask;
+ untag_members |= untag_mask;
+ reg_mcast_members |= reg_mask;
+ unreg_mcast_members |= unreg_mask;
+
+ ret = cpsw_ale_add_vlan(ale, vid, vlan_members, untag_members,
+ reg_mcast_members, unreg_mcast_members);
+ if (ret) {
+ dev_err(ale->params.dev, "Unable to add vlan\n");
+ return ret;
+ }
+ dev_dbg(ale->params.dev, "port mask 0x%x untag 0x%x\n", vlan_members,
+ untag_mask);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cpsw_ale_vlan_add_modify);
+
+int cpsw_ale_vlan_del_modify(struct cpsw_ale *ale, u16 vid, int port_mask)
+{
+ int ret = 0;
+ int vlan_members;
+
+ vlan_members = cpsw_ale_read_vlan_members(ale, vid);
+ vlan_members &= ~port_mask;
+
+ ret = cpsw_ale_del_vlan(ale, vid, vlan_members);
+ if (ret) {
+ dev_err(ale->params.dev, "Unable to del vlan\n");
+ return ret;
+ }
+ dev_dbg(ale->params.dev, "port mask 0x%x\n", port_mask);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cpsw_ale_vlan_del_modify);
+
void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti)
{
u32 ale_entry[ALE_ENTRY_WORDS];
diff --git a/drivers/net/ethernet/ti/cpsw_ale.h b/drivers/net/ethernet/ti/cpsw_ale.h
index d4fe901..bc29616 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.h
+++ b/drivers/net/ethernet/ti/cpsw_ale.h
@@ -123,4 +123,12 @@ int cpsw_ale_control_set(struct cpsw_ale *ale, int port,
int control, int value);
void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data);

+int cpsw_ale_vlan_add_modify(struct cpsw_ale *ale, u16 vid, int port_mask,
+ int untag_mask, int reg_mcast, int unreg_mcast);
+int cpsw_ale_vlan_del_modify(struct cpsw_ale *ale, u16 vid, int port_mask);
+int cpsw_ale_mcast_add_modify(struct cpsw_ale *ale, u8 *addr, int port_mask,
+ int flags, u16 vid, int mcast_state);
+int cpsw_ale_mcast_del_modify(struct cpsw_ale *ale, u8 *addr, int port,
+ int flags, u16 vid);
+
#endif
--
2.7.4