ptr8 = RTL838X_SW_BASE + RTL838X_PORT_ISO_CTRL(0);
for (i = 0; i < 28; i += 8)
- pr_info("> %8x %8x %8x %8x %8x %8x %8x %8x\n",
+ pr_debug("> %8x %8x %8x %8x %8x %8x %8x %8x\n",
ptr8[i + 0], ptr8[i + 1], ptr8[i + 2], ptr8[i + 3],
ptr8[i + 4], ptr8[i + 5], ptr8[i + 6], ptr8[i + 7]);
- pr_info("CPU_PORT> %8x\n", ptr8[28]);
+ pr_debug("CPU_PORT> %8x\n", ptr8[28]);
}
static inline int rtl838x_port_iso_ctrl(int p)
static void rtl838x_vlan_tables_read(u32 vlan, struct rtl838x_vlan_info *info)
{
- u32 cmd, v;
+ u32 v;
+ // Read VLAN table (0) via register 0
+ struct table_reg *r = rtl_table_get(RTL8380_TBL_0, 0);
+
+ rtl_table_read(r, vlan);
+ info->tagged_ports = sw_r32(rtl_table_data(r, 0));
+ v = sw_r32(rtl_table_data(r, 1));
+ pr_debug("VLAN_READ %d: %016llx %08x\n", vlan, info->tagged_ports, v);
+ rtl_table_release(r);
- cmd = BIT(15) /* Execute cmd */
- | BIT(14) /* Read */
- | 0 << 12 /* Table type 0b00 */
- | (vlan & 0xfff);
- rtl838x_exec_tbl0_cmd(cmd);
- info->tagged_ports = sw_r32(RTL838X_TBL_ACCESS_DATA_0(0));
- v = sw_r32(RTL838X_TBL_ACCESS_DATA_0(1));
info->profile_id = v & 0x7;
info->hash_mc_fid = !!(v & 0x8);
info->hash_uc_fid = !!(v & 0x10);
info->fid = (v >> 5) & 0x3f;
-
- cmd = BIT(15) /* Execute cmd */
- | BIT(14) /* Read */
- | 0 << 12 /* Table type 0b00 */
- | (vlan & 0xfff);
- rtl838x_exec_tbl1_cmd(cmd);
- info->untagged_ports = sw_r32(RTL838X_TBL_ACCESS_DATA_1(0));
+ // Read UNTAG table (0) via table register 1
+ r = rtl_table_get(RTL8380_TBL_1, 0);
+ rtl_table_read(r, vlan);
+ info->untagged_ports = sw_r32(rtl_table_data(r, 0));
+ rtl_table_release(r);
}
static void rtl838x_vlan_set_tagged(u32 vlan, struct rtl838x_vlan_info *info)
{
- u32 cmd = BIT(15) /* Execute cmd */
- | 0 << 14 /* Write */
- | 0 << 12 /* Table type 0b00 */
- | (vlan & 0xfff);
u32 v;
+ // Access VLAN table (0) via register 0
+ struct table_reg *r = rtl_table_get(RTL8380_TBL_0, 0);
- sw_w32(info->tagged_ports, RTL838X_TBL_ACCESS_DATA_0(0));
+ sw_w32(info->tagged_ports, rtl_table_data(r, 0));
v = info->profile_id;
v |= info->hash_mc_fid ? 0x8 : 0;
v |= info->hash_uc_fid ? 0x10 : 0;
v |= ((u32)info->fid) << 5;
+ sw_w32(v, rtl_table_data(r, 1));
- sw_w32(v, RTL838X_TBL_ACCESS_DATA_0(1));
- rtl838x_exec_tbl0_cmd(cmd);
+ rtl_table_write(r, vlan);
+ rtl_table_release(r);
}
static void rtl838x_vlan_set_untagged(u32 vlan, u64 portmask)
{
- u32 cmd = BIT(15) /* Execute cmd */
- | 0 << 14 /* Write */
- | 0 << 12 /* Table type 0b00 */
- | (vlan & 0xfff);
- sw_w32(portmask & 0x1fffffff, RTL838X_TBL_ACCESS_DATA_1(0));
- rtl838x_exec_tbl1_cmd(cmd);
+ // Access UNTAG table (0) via register 1
+ struct table_reg *r = rtl_table_get(RTL8380_TBL_1, 0);
+
+ sw_w32(portmask & 0x1fffffff, rtl_table_data(r, 0));
+ rtl_table_write(r, vlan);
+ rtl_table_release(r);
+}
+
+/* Sets the L2 forwarding to be based on either the inner VLAN tag or the outer
+ */
+static void rtl838x_vlan_fwd_on_inner(int port, bool is_set)
+{
+ if (is_set)
+ sw_w32_mask(BIT(port), 0, RTL838X_VLAN_PORT_FWD);
+ else
+ sw_w32_mask(0, BIT(port), RTL838X_VLAN_PORT_FWD);
+}
+
+static u64 rtl838x_l2_hash_seed(u64 mac, u32 vid)
+{
+ return mac << 12 | vid;
+}
+
+/*
+ * Applies the same hash algorithm as the one used currently by the ASIC to the seed
+ * and returns a key into the L2 hash table
+ */
+static u32 rtl838x_l2_hash_key(struct rtl838x_switch_priv *priv, u64 seed)
+{
+ u32 h1, h2, h3, h;
+
+ if (sw_r32(priv->r->l2_ctrl_0) & 1) {
+ h1 = (seed >> 11) & 0x7ff;
+ h1 = ((h1 & 0x1f) << 6) | ((h1 >> 5) & 0x3f);
+
+ h2 = (seed >> 33) & 0x7ff;
+ h2 = ((h2 & 0x3f) << 5) | ((h2 >> 6) & 0x1f);
+
+ h3 = (seed >> 44) & 0x7ff;
+ h3 = ((h3 & 0x7f) << 4) | ((h3 >> 7) & 0xf);
+
+ h = h1 ^ h2 ^ h3 ^ ((seed >> 55) & 0x1ff);
+ h ^= ((seed >> 22) & 0x7ff) ^ (seed & 0x7ff);
+ } else {
+ h = ((seed >> 55) & 0x1ff) ^ ((seed >> 44) & 0x7ff)
+ ^ ((seed >> 33) & 0x7ff) ^ ((seed >> 22) & 0x7ff)
+ ^ ((seed >> 11) & 0x7ff) ^ (seed & 0x7ff);
+ }
+
+ return h;
}
static inline int rtl838x_mac_force_mode_ctrl(int p)
return RTL838X_TRK_MBR_CTR + (group << 2);
}
-static u64 rtl838x_read_l2_entry_using_hash(u32 hash, u32 position, struct rtl838x_l2_entry *e)
+/*
+ * Fills an L2 entry structure from the SoC registers
+ */
+static void rtl838x_fill_l2_entry(u32 r[], struct rtl838x_l2_entry *e)
+{
+ /* Table contains different entry types, we need to identify the right one:
+ * Check for MC entries, first
+ * In contrast to the RTL93xx SoCs, there is no valid bit, use heuristics to
+ * identify valid entries
+ */
+ e->is_ip_mc = !!(r[0] & BIT(22));
+ e->is_ipv6_mc = !!(r[0] & BIT(21));
+ e->type = L2_INVALID;
+
+ if (!e->is_ip_mc && !e->is_ipv6_mc) {
+ e->mac[0] = (r[1] >> 20);
+ e->mac[1] = (r[1] >> 12);
+ e->mac[2] = (r[1] >> 4);
+ e->mac[3] = (r[1] & 0xf) << 4 | (r[2] >> 28);
+ e->mac[4] = (r[2] >> 20);
+ e->mac[5] = (r[2] >> 12);
+
+ e->rvid = r[2] & 0xfff;
+ e->vid = r[0] & 0xfff;
+
+ /* Is it a unicast entry? check multicast bit */
+ if (!(e->mac[0] & 1)) {
+ e->is_static = !!((r[0] >> 19) & 1);
+ e->port = (r[0] >> 12) & 0x1f;
+ e->block_da = !!(r[1] & BIT(30));
+ e->block_sa = !!(r[1] & BIT(31));
+ e->suspended = !!(r[1] & BIT(29));
+ e->next_hop = !!(r[1] & BIT(28));
+ if (e->next_hop) {
+ pr_info("Found next hop entry, need to read extra data\n");
+ e->nh_vlan_target = !!(r[0] & BIT(9));
+ e->nh_route_id = r[0] & 0x1ff;
+ }
+ e->age = (r[0] >> 17) & 0x3;
+ e->valid = true;
+
+ /* A valid entry has one of mutli-cast, aging, sa/da-blocking,
+ * next-hop or static entry bit set */
+ if (!(r[0] & 0x007c0000) && !(r[1] & 0xd0000000))
+ e->valid = false;
+ else
+ e->type = L2_UNICAST;
+ } else { // L2 multicast
+ pr_info("Got L2 MC entry: %08x %08x %08x\n", r[0], r[1], r[2]);
+ e->valid = true;
+ e->type = L2_MULTICAST;
+ e->mc_portmask_index = (r[0] >> 12) & 0x1ff;
+ }
+ } else { // IPv4 and IPv6 multicast
+ e->valid = true;
+ e->mc_portmask_index = (r[0] >> 12) & 0x1ff;
+ e->mc_gip = r[1];
+ e->mc_sip = r[2];
+ e->rvid = r[0] & 0xfff;
+ }
+ if (e->is_ip_mc)
+ e->type = IP4_MULTICAST;
+ if (e->is_ipv6_mc)
+ e->type = IP6_MULTICAST;
+}
+
+/*
+ * Fills the 3 SoC table registers r[] with the information of in the rtl838x_l2_entry
+ */
+static void rtl838x_fill_l2_row(u32 r[], struct rtl838x_l2_entry *e)
+{
+ u64 mac = ether_addr_to_u64(e->mac);
+
+ if (!e->valid) {
+ r[0] = r[1] = r[2] = 0;
+ return;
+ }
+
+ r[0] = e->is_ip_mc ? BIT(22) : 0;
+ r[0] |= e->is_ipv6_mc ? BIT(21) : 0;
+
+ if (!e->is_ip_mc && !e->is_ipv6_mc) {
+ r[1] = mac >> 20;
+ r[2] = (mac & 0xfffff) << 12;
+
+ /* Is it a unicast entry? check multicast bit */
+ if (!(e->mac[0] & 1)) {
+ r[0] |= e->is_static ? BIT(19) : 0;
+ r[0] |= (e->port & 0x3f) << 12;
+ r[0] |= e->vid;
+ r[1] |= e->block_da ? BIT(30) : 0;
+ r[1] |= e->block_sa ? BIT(31) : 0;
+ r[1] |= e->suspended ? BIT(29) : 0;
+ r[2] |= e->rvid & 0xfff;
+ if (e->next_hop) {
+ r[1] |= BIT(28);
+ r[0] |= e->nh_vlan_target ? BIT(9) : 0;
+ r[0] |= e->nh_route_id &0x1ff;
+ }
+ r[0] |= (e->age & 0x3) << 17;
+ } else { // L2 Multicast
+ r[0] |= (e->mc_portmask_index & 0x1ff) << 12;
+ r[2] |= e->rvid & 0xfff;
+ r[0] |= e->vid & 0xfff;
+ pr_info("FILL MC: %08x %08x %08x\n", r[0], r[1], r[2]);
+ }
+ } else { // IPv4 and IPv6 multicast
+ r[1] = e->mc_gip;
+ r[2] = e->mc_sip;
+ r[0] |= e->rvid;
+ }
+}
+
+/*
+ * Read an L2 UC or MC entry out of a hash bucket of the L2 forwarding table
+ * hash is the id of the bucket and pos is the position of the entry in that bucket
+ * The data read from the SoC is filled into rtl838x_l2_entry
+ */
+static u64 rtl838x_read_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
{
u64 entry;
u32 r[3];
+ struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 0); // Access L2 Table 0
+ u32 idx = (0 << 14) | (hash << 2) | pos; // Search SRAM, with hash and at pos in bucket
+ int i;
+
+ rtl_table_read(q, idx);
+ for (i= 0; i < 3; i++)
+ r[i] = sw_r32(rtl_table_data(q, i));
- /* Search in SRAM, with hash and at position in hash bucket (0-3) */
- u32 idx = (0 << 14) | (hash << 2) | position;
-
- u32 cmd = BIT(16) /* Execute cmd */
- | BIT(15) /* Read */
- | 0 << 13 /* Table type 0b00 */
- | (idx & 0x1fff);
-
- sw_w32(cmd, RTL838X_TBL_ACCESS_L2_CTRL);
- do { } while (sw_r32(RTL838X_TBL_ACCESS_L2_CTRL) & BIT(16));
- r[0] = sw_r32(RTL838X_TBL_ACCESS_L2_DATA(0));
- r[1] = sw_r32(RTL838X_TBL_ACCESS_L2_DATA(1));
- r[2] = sw_r32(RTL838X_TBL_ACCESS_L2_DATA(2));
-
- e->mac[0] = (r[1] >> 20);
- e->mac[1] = (r[1] >> 12);
- e->mac[2] = (r[1] >> 4);
- e->mac[3] = (r[1] & 0xf) << 4 | (r[2] >> 28);
- e->mac[4] = (r[2] >> 20);
- e->mac[5] = (r[2] >> 12);
- e->is_static = !!((r[0] >> 19) & 1);
- e->vid = r[0] & 0xfff;
- e->rvid = r[2] & 0xfff;
- e->port = (r[0] >> 12) & 0x1f;
-
- e->valid = true;
- if (!(r[0] >> 17)) /* Check for invalid entry */
- e->valid = false;
-
- if (e->valid)
- pr_debug("Found in Hash: R1 %x R2 %x R3 %x\n", r[0], r[1], r[2]);
+ rtl_table_release(q);
+
+ rtl838x_fill_l2_entry(r, e);
+ if (!e->valid)
+ return 0;
entry = (((u64) r[1]) << 32) | (r[2] & 0xfffff000) | (r[0] & 0xfff);
return entry;
}
+static void rtl838x_write_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
+{
+ u32 r[3];
+ struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 0);
+ int i;
+
+ u32 idx = (0 << 14) | (hash << 2) | pos; // Access SRAM, with hash and at pos in bucket
+
+ rtl838x_fill_l2_row(r, e);
+
+ for (i= 0; i < 3; i++)
+ sw_w32(r[i], rtl_table_data(q, i));
+
+ rtl_table_write(q, idx);
+ rtl_table_release(q);
+}
+
static u64 rtl838x_read_cam(int idx, struct rtl838x_l2_entry *e)
{
u64 entry;
u32 r[3];
+ struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 1); // Access L2 Table 1
+ int i;
+
+ rtl_table_read(q, idx);
+ for (i= 0; i < 3; i++)
+ r[i] = sw_r32(rtl_table_data(q, i));
+
+ rtl_table_release(q);
+
+ rtl838x_fill_l2_entry(r, e);
+ if (!e->valid)
+ return 0;
- u32 cmd = BIT(16) /* Execute cmd */
- | BIT(15) /* Read */
- | BIT(13) /* Table type 0b01 */
- | (idx & 0x3f);
- sw_w32(cmd, RTL838X_TBL_ACCESS_L2_CTRL);
- do { } while (sw_r32(RTL838X_TBL_ACCESS_L2_CTRL) & BIT(16));
- r[0] = sw_r32(RTL838X_TBL_ACCESS_L2_DATA(0));
- r[1] = sw_r32(RTL838X_TBL_ACCESS_L2_DATA(1));
- r[2] = sw_r32(RTL838X_TBL_ACCESS_L2_DATA(2));
-
- e->mac[0] = (r[1] >> 20);
- e->mac[1] = (r[1] >> 12);
- e->mac[2] = (r[1] >> 4);
- e->mac[3] = (r[1] & 0xf) << 4 | (r[2] >> 28);
- e->mac[4] = (r[2] >> 20);
- e->mac[5] = (r[2] >> 12);
- e->is_static = !!((r[0] >> 19) & 1);
- e->vid = r[0] & 0xfff;
- e->rvid = r[2] & 0xfff;
- e->port = (r[0] >> 12) & 0x1f;
-
- e->valid = true;
- if (!(r[0] >> 17)) /* Check for invalid entry */
- e->valid = false;
-
- if (e->valid)
- pr_debug("Found in CAM: R1 %x R2 %x R3 %x\n", r[0], r[1], r[2]);
+ pr_debug("Found in CAM: R1 %x R2 %x R3 %x\n", r[0], r[1], r[2]);
+ // Return MAC with concatenated VID ac concatenated ID
entry = (((u64) r[1]) << 32) | (r[2] & 0xfffff000) | (r[0] & 0xfff);
return entry;
}
-static inline int rtl838x_vlan_profile(int profile)
+static void rtl838x_write_cam(int idx, struct rtl838x_l2_entry *e)
{
- return RTL838X_VLAN_PROFILE(profile);
+ u32 r[3];
+ struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 1); // Access L2 Table 1
+ int i;
+
+ rtl838x_fill_l2_row(r, e);
+
+ for (i= 0; i < 3; i++)
+ sw_w32(r[i], rtl_table_data(q, i));
+
+ rtl_table_write(q, idx);
+ rtl_table_release(q);
+}
+
+static u64 rtl838x_read_mcast_pmask(int idx)
+{
+ u32 portmask;
+ // Read MC_PMSK (2) via register RTL8380_TBL_L2
+ struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 2);
+
+ rtl_table_read(q, idx);
+ portmask = sw_r32(rtl_table_data(q, 0));
+ rtl_table_release(q);
+
+ return portmask;
+}
+
+static void rtl838x_write_mcast_pmask(int idx, u64 portmask)
+{
+ // Access MC_PMSK (2) via register RTL8380_TBL_L2
+ struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 2);
+
+ sw_w32(((u32)portmask) & 0x1fffffff, rtl_table_data(q, 0));
+ rtl_table_write(q, idx);
+ rtl_table_release(q);
+}
+
+static void rtl838x_vlan_profile_setup(int profile)
+{
+ u32 pmask_id = UNKNOWN_MC_PMASK;
+ // Enable L2 Learning BIT 0, portmask UNKNOWN_MC_PMASK for unknown MC traffic flooding
+ u32 p = 1 | pmask_id << 1 | pmask_id << 10 | pmask_id << 19;
+
+ sw_w32(p, RTL838X_VLAN_PROFILE(profile));
+
+ /* RTL8380 and RTL8390 use an index into the portmask table to set the
+ * unknown multicast portmask, setup a default at a safe location
+ * On RTL93XX, the portmask is directly set in the profile,
+ * see e.g. rtl9300_vlan_profile_setup
+ */
+ rtl838x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0xfffffff);
}
static inline int rtl838x_vlan_port_egr_filter(int port)
.vlan_set_untagged = rtl838x_vlan_set_untagged,
.mac_force_mode_ctrl = rtl838x_mac_force_mode_ctrl,
.vlan_profile_dump = rtl838x_vlan_profile_dump,
+ .vlan_profile_setup = rtl838x_vlan_profile_setup,
+ .vlan_fwd_on_inner = rtl838x_vlan_fwd_on_inner,
.stp_get = rtl838x_stp_get,
.stp_set = rtl838x_stp_set,
.mac_port_ctrl = rtl838x_mac_port_ctrl,
.mac_rx_pause_sts = RTL838X_MAC_RX_PAUSE_STS,
.mac_tx_pause_sts = RTL838X_MAC_TX_PAUSE_STS,
.read_l2_entry_using_hash = rtl838x_read_l2_entry_using_hash,
+ .write_l2_entry_using_hash = rtl838x_write_l2_entry_using_hash,
.read_cam = rtl838x_read_cam,
+ .write_cam = rtl838x_write_cam,
.vlan_port_egr_filter = RTL838X_VLAN_PORT_EGR_FLTR,
.vlan_port_igr_filter = RTL838X_VLAN_PORT_IGR_FLTR(0),
.vlan_port_pb = RTL838X_VLAN_PORT_PB_VLAN,
.init_eee = rtl838x_init_eee,
.port_eee_set = rtl838x_port_eee_set,
.eee_port_ability = rtl838x_eee_port_ability,
+ .l2_hash_seed = rtl838x_l2_hash_seed,
+ .l2_hash_key = rtl838x_l2_hash_key,
+ .read_mcast_pmask = rtl838x_read_mcast_pmask,
+ .write_mcast_pmask = rtl838x_write_mcast_pmask,
};
irqreturn_t rtl838x_switch_irq(int irq, void *dev_id)
}
}
-/*
- * Applies the same hash algorithm as the one used currently by the ASIC
- */
-u32 rtl838x_hash(struct rtl838x_switch_priv *priv, u64 seed)
-{
- u32 h1, h2, h3, h;
-
- if (sw_r32(priv->r->l2_ctrl_0) & 1) {
- h1 = (seed >> 11) & 0x7ff;
- h1 = ((h1 & 0x1f) << 6) | ((h1 >> 5) & 0x3f);
-
- h2 = (seed >> 33) & 0x7ff;
- h2 = ((h2 & 0x3f) << 5) | ((h2 >> 6) & 0x1f);
-
- h3 = (seed >> 44) & 0x7ff;
- h3 = ((h3 & 0x7f) << 4) | ((h3 >> 7) & 0xf);
-
- h = h1 ^ h2 ^ h3 ^ ((seed >> 55) & 0x1ff);
- h ^= ((seed >> 22) & 0x7ff) ^ (seed & 0x7ff);
- } else {
- h = ((seed >> 55) & 0x1ff) ^ ((seed >> 44) & 0x7ff)
- ^ ((seed >> 33) & 0x7ff) ^ ((seed >> 22) & 0x7ff)
- ^ ((seed >> 11) & 0x7ff) ^ (seed & 0x7ff);
- }
-
- return h;
-}
-
-void rtl838x_vlan_profile_dump(int index)
+void rtl838x_vlan_profile_dump(int profile)
{
- u32 profile;
+ u32 p;
- if (index < 0 || index > 7)
+ if (profile < 0 || profile > 7)
return;
- profile = sw_r32(RTL838X_VLAN_PROFILE(index));
+ p = sw_r32(RTL838X_VLAN_PROFILE(profile));
- pr_info("VLAN %d: L2 learning: %d, L2 Unknown MultiCast Field %x, \
- IPv4 Unknown MultiCast Field %x, IPv6 Unknown MultiCast Field: %x",
- index, profile & 1, (profile >> 1) & 0x1ff, (profile >> 10) & 0x1ff,
- (profile >> 19) & 0x1ff);
+ pr_info("VLAN profile %d: L2 learning: %d, UNKN L2MC FLD PMSK %d, \
+ UNKN IPMC FLD PMSK %d, UNKN IPv6MC FLD PMSK: %d",
+ profile, p & 1, (p >> 1) & 0x1ff, (p >> 10) & 0x1ff, (p >> 19) & 0x1ff);
}
void rtl8380_sds_rst(int mac)
projects / openwrt / openwrt.git / blobdiff