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authorCodrin Ciubotariu <codrin.ciubotariu@freescale.com>2015-09-09 18:00:52 +0300
committerYork Sun <yorksun@freescale.com>2015-09-21 08:29:47 -0700
commit22449858f8eae3f03399f76b4a982dd2f0d4df00 (patch)
treeae466f8652569c22245bc973dcbd7ab389a4590c /drivers
parent0118e83ba4e1811515dc944a826758cad8a394b7 (diff)
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drivers/net/vsc9953: Add commands to manipulate the FDB for VSC9953
The new command: ethsw [port <port_no>] [vlan <vid>] fdb { [help] | show | flush | { add | del } <mac> } Can be used to add and delete FDB entries. Also, the command can be used to show entries from the FDB tables. When used with [port <port_no>] and [vlan <vid>], only the matching the FDB entries can be seen or flushed. The command has also been added to the generic ethsw parser from cmd_ethsw.c. Signed-off-by: Johnson Leung <johnson.leung@freescale.com> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/vsc9953.c472
1 files changed, 472 insertions, 0 deletions
diff --git a/drivers/net/vsc9953.c b/drivers/net/vsc9953.c
index 21b14e6..071906c 100644
--- a/drivers/net/vsc9953.c
+++ b/drivers/net/vsc9953.c
@@ -783,6 +783,389 @@ static int vsc9953_port_learn_mode_get(int port_no, enum port_learn_mode *mode)
return 0;
}
+/* wait for FDB to become available */
+static int vsc9953_mac_table_poll_idle(void)
+{
+ struct vsc9953_analyzer *l2ana_reg;
+ u32 timeout;
+
+ l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
+ VSC9953_ANA_OFFSET);
+
+ timeout = 50000;
+ while (((in_le32(&l2ana_reg->ana_tables.mac_access) &
+ VSC9953_MAC_CMD_MASK) !=
+ VSC9953_MAC_CMD_IDLE) && --timeout)
+ udelay(1);
+
+ return timeout ? 0 : -EBUSY;
+}
+
+/* enum describing available commands for the MAC table */
+enum mac_table_cmd {
+ MAC_TABLE_READ,
+ MAC_TABLE_LOOKUP,
+ MAC_TABLE_WRITE,
+ MAC_TABLE_LEARN,
+ MAC_TABLE_FORGET,
+ MAC_TABLE_GET_NEXT,
+ MAC_TABLE_AGE,
+};
+
+/* Issues a command to the FDB table */
+static int vsc9953_mac_table_cmd(enum mac_table_cmd cmd)
+{
+ struct vsc9953_analyzer *l2ana_reg;
+
+ l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
+ VSC9953_ANA_OFFSET);
+
+ switch (cmd) {
+ case MAC_TABLE_READ:
+ clrsetbits_le32(&l2ana_reg->ana_tables.mac_access,
+ VSC9953_MAC_CMD_MASK | VSC9953_MAC_CMD_VALID,
+ VSC9953_MAC_CMD_READ);
+ break;
+ case MAC_TABLE_LOOKUP:
+ clrsetbits_le32(&l2ana_reg->ana_tables.mac_access,
+ VSC9953_MAC_CMD_MASK, VSC9953_MAC_CMD_READ |
+ VSC9953_MAC_CMD_VALID);
+ break;
+ case MAC_TABLE_WRITE:
+ clrsetbits_le32(&l2ana_reg->ana_tables.mac_access,
+ VSC9953_MAC_CMD_MASK |
+ VSC9953_MAC_ENTRYTYPE_MASK,
+ VSC9953_MAC_CMD_WRITE |
+ VSC9953_MAC_ENTRYTYPE_LOCKED);
+ break;
+ case MAC_TABLE_LEARN:
+ clrsetbits_le32(&l2ana_reg->ana_tables.mac_access,
+ VSC9953_MAC_CMD_MASK |
+ VSC9953_MAC_ENTRYTYPE_MASK,
+ VSC9953_MAC_CMD_LEARN |
+ VSC9953_MAC_ENTRYTYPE_LOCKED |
+ VSC9953_MAC_CMD_VALID);
+ break;
+ case MAC_TABLE_FORGET:
+ clrsetbits_le32(&l2ana_reg->ana_tables.mac_access,
+ VSC9953_MAC_CMD_MASK |
+ VSC9953_MAC_ENTRYTYPE_MASK,
+ VSC9953_MAC_CMD_FORGET);
+ break;
+ case MAC_TABLE_GET_NEXT:
+ clrsetbits_le32(&l2ana_reg->ana_tables.mac_access,
+ VSC9953_MAC_CMD_MASK |
+ VSC9953_MAC_ENTRYTYPE_MASK,
+ VSC9953_MAC_CMD_NEXT);
+ break;
+ case MAC_TABLE_AGE:
+ clrsetbits_le32(&l2ana_reg->ana_tables.mac_access,
+ VSC9953_MAC_CMD_MASK |
+ VSC9953_MAC_ENTRYTYPE_MASK,
+ VSC9953_MAC_CMD_AGE);
+ break;
+ default:
+ printf("Unknown MAC table command\n");
+ }
+
+ if (vsc9953_mac_table_poll_idle() < 0) {
+ debug("MAC table timeout\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/* show the FDB entries that correspond to a port and a VLAN */
+static void vsc9953_mac_table_show(int port_no, int vid)
+{
+ int rc[VSC9953_MAX_PORTS];
+ enum port_learn_mode mode[VSC9953_MAX_PORTS];
+ int i;
+ u32 val;
+ u32 vlan;
+ u32 mach;
+ u32 macl;
+ u32 dest_indx;
+ struct vsc9953_analyzer *l2ana_reg;
+
+ l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
+ VSC9953_ANA_OFFSET);
+
+ /* disable auto learning */
+ if (port_no == ETHSW_CMD_PORT_ALL) {
+ for (i = 0; i < VSC9953_MAX_PORTS; i++) {
+ rc[i] = vsc9953_port_learn_mode_get(i, &mode[i]);
+ if (!rc[i] && mode[i] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(i, PORT_LEARN_NONE);
+ }
+ } else {
+ rc[port_no] = vsc9953_port_learn_mode_get(port_no,
+ &mode[port_no]);
+ if (!rc[port_no] && mode[port_no] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(port_no, PORT_LEARN_NONE);
+ }
+
+ /* write port and vid to get selected FDB entries */
+ val = in_le32(&l2ana_reg->ana.anag_efil);
+ if (port_no != ETHSW_CMD_PORT_ALL) {
+ val = bitfield_replace_by_mask(val, VSC9953_AGE_PORT_MASK,
+ port_no) | VSC9953_AGE_PORT_EN;
+ }
+ if (vid != ETHSW_CMD_VLAN_ALL) {
+ val = bitfield_replace_by_mask(val, VSC9953_AGE_VID_MASK,
+ vid) | VSC9953_AGE_VID_EN;
+ }
+ out_le32(&l2ana_reg->ana.anag_efil, val);
+
+ /* set MAC and VLAN to 0 to look from beginning */
+ clrbits_le32(&l2ana_reg->ana_tables.mach_data,
+ VSC9953_MAC_VID_MASK | VSC9953_MAC_MACH_MASK);
+ out_le32(&l2ana_reg->ana_tables.macl_data, 0);
+
+ /* get entries */
+ printf("%10s %17s %5s %4s\n", "EntryType", "MAC", "PORT", "VID");
+ do {
+ if (vsc9953_mac_table_cmd(MAC_TABLE_GET_NEXT) < 0) {
+ debug("GET NEXT MAC table command failed\n");
+ break;
+ }
+
+ val = in_le32(&l2ana_reg->ana_tables.mac_access);
+
+ /* get out when an invalid entry is found */
+ if (!(val & VSC9953_MAC_CMD_VALID))
+ break;
+
+ switch (val & VSC9953_MAC_ENTRYTYPE_MASK) {
+ case VSC9953_MAC_ENTRYTYPE_NORMAL:
+ printf("%10s ", "Dynamic");
+ break;
+ case VSC9953_MAC_ENTRYTYPE_LOCKED:
+ printf("%10s ", "Static");
+ break;
+ case VSC9953_MAC_ENTRYTYPE_IPV4MCAST:
+ printf("%10s ", "IPv4 Mcast");
+ break;
+ case VSC9953_MAC_ENTRYTYPE_IPV6MCAST:
+ printf("%10s ", "IPv6 Mcast");
+ break;
+ default:
+ printf("%10s ", "Unknown");
+ }
+
+ dest_indx = bitfield_extract_by_mask(val,
+ VSC9953_MAC_DESTIDX_MASK);
+
+ val = in_le32(&l2ana_reg->ana_tables.mach_data);
+ vlan = bitfield_extract_by_mask(val, VSC9953_MAC_VID_MASK);
+ mach = bitfield_extract_by_mask(val, VSC9953_MAC_MACH_MASK);
+ macl = in_le32(&l2ana_reg->ana_tables.macl_data);
+
+ printf("%02x:%02x:%02x:%02x:%02x:%02x ", (mach >> 8) & 0xff,
+ mach & 0xff, (macl >> 24) & 0xff, (macl >> 16) & 0xff,
+ (macl >> 8) & 0xff, macl & 0xff);
+ printf("%5d ", dest_indx);
+ printf("%4d\n", vlan);
+ } while (1);
+
+ /* set learning mode to previous value */
+ if (port_no == ETHSW_CMD_PORT_ALL) {
+ for (i = 0; i < VSC9953_MAX_PORTS; i++) {
+ if (!rc[i] && mode[i] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(i, mode[i]);
+ }
+ } else {
+ /* If administrative down, skip */
+ if (!rc[port_no] && mode[port_no] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(port_no, mode[port_no]);
+ }
+
+ /* reset FDB port and VLAN FDB selection */
+ clrbits_le32(&l2ana_reg->ana.anag_efil, VSC9953_AGE_PORT_EN |
+ VSC9953_AGE_PORT_MASK | VSC9953_AGE_VID_EN |
+ VSC9953_AGE_VID_MASK);
+}
+
+/* Add a static FDB entry */
+static int vsc9953_mac_table_add(u8 port_no, uchar mac[6], int vid)
+{
+ u32 val;
+ struct vsc9953_analyzer *l2ana_reg;
+
+ l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
+ VSC9953_ANA_OFFSET);
+
+ val = in_le32(&l2ana_reg->ana_tables.mach_data);
+ val = bitfield_replace_by_mask(val, VSC9953_MACHDATA_VID_MASK, vid) |
+ (mac[0] << 8) | (mac[1] << 0);
+ out_le32(&l2ana_reg->ana_tables.mach_data, val);
+
+ out_le32(&l2ana_reg->ana_tables.macl_data,
+ (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) |
+ (mac[5] << 0));
+
+ /* set on which port is the MAC address added */
+ val = in_le32(&l2ana_reg->ana_tables.mac_access);
+ val = bitfield_replace_by_mask(val, VSC9953_MAC_DESTIDX_MASK, port_no);
+ out_le32(&l2ana_reg->ana_tables.mac_access, val);
+
+ if (vsc9953_mac_table_cmd(MAC_TABLE_LEARN) < 0)
+ return -1;
+
+ /* check if the MAC address was indeed added */
+ val = in_le32(&l2ana_reg->ana_tables.mach_data);
+ val = bitfield_replace_by_mask(val, VSC9953_MACHDATA_VID_MASK, vid) |
+ (mac[0] << 8) | (mac[1] << 0);
+ out_le32(&l2ana_reg->ana_tables.mach_data, val);
+
+ out_le32(&l2ana_reg->ana_tables.macl_data,
+ (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) |
+ (mac[5] << 0));
+
+ if (vsc9953_mac_table_cmd(MAC_TABLE_READ) < 0)
+ return -1;
+
+ val = in_le32(&l2ana_reg->ana_tables.mac_access);
+
+ if ((port_no != bitfield_extract_by_mask(val,
+ VSC9953_MAC_DESTIDX_MASK))) {
+ printf("Failed to add MAC address\n");
+ return -1;
+ }
+ return 0;
+}
+
+/* Delete a FDB entry */
+static int vsc9953_mac_table_del(uchar mac[6], u16 vid)
+{
+ u32 val;
+ struct vsc9953_analyzer *l2ana_reg;
+
+ l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
+ VSC9953_ANA_OFFSET);
+
+ /* check first if MAC entry is present */
+ val = in_le32(&l2ana_reg->ana_tables.mach_data);
+ val = bitfield_replace_by_mask(val, VSC9953_MACHDATA_VID_MASK, vid) |
+ (mac[0] << 8) | (mac[1] << 0);
+ out_le32(&l2ana_reg->ana_tables.mach_data, val);
+
+ out_le32(&l2ana_reg->ana_tables.macl_data,
+ (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) |
+ (mac[5] << 0));
+
+ if (vsc9953_mac_table_cmd(MAC_TABLE_LOOKUP) < 0) {
+ debug("Lookup in the MAC table failed\n");
+ return -1;
+ }
+
+ if (!(in_le32(&l2ana_reg->ana_tables.mac_access) &
+ VSC9953_MAC_CMD_VALID)) {
+ printf("The MAC address: %02x:%02x:%02x:%02x:%02x:%02x ",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ printf("VLAN: %d does not exist.\n", vid);
+ return -1;
+ }
+
+ /* FDB entry found, proceed to delete */
+ val = in_le32(&l2ana_reg->ana_tables.mach_data);
+ val = bitfield_replace_by_mask(val, VSC9953_MACHDATA_VID_MASK, vid) |
+ (mac[0] << 8) | (mac[1] << 0);
+ out_le32(&l2ana_reg->ana_tables.mach_data, val);
+
+ out_le32(&l2ana_reg->ana_tables.macl_data, (mac[2] << 24) |
+ (mac[3] << 16) | (mac[4] << 8) | (mac[5] << 0));
+
+ if (vsc9953_mac_table_cmd(MAC_TABLE_FORGET) < 0)
+ return -1;
+
+ /* check if the MAC entry is still in FDB */
+ val = in_le32(&l2ana_reg->ana_tables.mach_data);
+ val = bitfield_replace_by_mask(val, VSC9953_MACHDATA_VID_MASK, vid) |
+ (mac[0] << 8) | (mac[1] << 0);
+ out_le32(&l2ana_reg->ana_tables.mach_data, val);
+
+ out_le32(&l2ana_reg->ana_tables.macl_data, (mac[2] << 24) |
+ (mac[3] << 16) | (mac[4] << 8) | (mac[5] << 0));
+
+ if (vsc9953_mac_table_cmd(MAC_TABLE_LOOKUP) < 0) {
+ debug("Lookup in the MAC table failed\n");
+ return -1;
+ }
+ if (in_le32(&l2ana_reg->ana_tables.mac_access) &
+ VSC9953_MAC_CMD_VALID) {
+ printf("Failed to delete MAC address\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/* age the unlocked entries in FDB */
+static void vsc9953_mac_table_age(int port_no, int vid)
+{
+ int rc[VSC9953_MAX_PORTS];
+ enum port_learn_mode mode[VSC9953_MAX_PORTS];
+ u32 val;
+ int i;
+ struct vsc9953_analyzer *l2ana_reg;
+
+ l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
+ VSC9953_ANA_OFFSET);
+
+ /* set port and VID for selective aging */
+ val = in_le32(&l2ana_reg->ana.anag_efil);
+ if (port_no != ETHSW_CMD_PORT_ALL) {
+ /* disable auto learning */
+ rc[port_no] = vsc9953_port_learn_mode_get(port_no,
+ &mode[port_no]);
+ if (!rc[port_no] && mode[port_no] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(port_no, PORT_LEARN_NONE);
+
+ val = bitfield_replace_by_mask(val, VSC9953_AGE_PORT_MASK,
+ port_no) | VSC9953_AGE_PORT_EN;
+ } else {
+ /* disable auto learning on all ports */
+ for (i = 0; i < VSC9953_MAX_PORTS; i++) {
+ rc[i] = vsc9953_port_learn_mode_get(i, &mode[i]);
+ if (!rc[i] && mode[i] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(i, PORT_LEARN_NONE);
+ }
+ }
+
+ if (vid != ETHSW_CMD_VLAN_ALL) {
+ val = bitfield_replace_by_mask(val, VSC9953_AGE_VID_MASK, vid) |
+ VSC9953_AGE_VID_EN;
+ }
+ out_le32(&l2ana_reg->ana.anag_efil, val);
+
+ /* age the dynamic FDB entries */
+ vsc9953_mac_table_cmd(MAC_TABLE_AGE);
+
+ /* clear previously set port and VID */
+ clrbits_le32(&l2ana_reg->ana.anag_efil, VSC9953_AGE_PORT_EN |
+ VSC9953_AGE_PORT_MASK | VSC9953_AGE_VID_EN |
+ VSC9953_AGE_VID_MASK);
+
+ if (port_no != ETHSW_CMD_PORT_ALL) {
+ if (!rc[port_no] && mode[port_no] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(port_no, mode[port_no]);
+ } else {
+ for (i = 0; i < VSC9953_MAX_PORTS; i++) {
+ if (!rc[i] && mode[i] != PORT_LEARN_NONE)
+ vsc9953_port_learn_mode_set(i, mode[i]);
+ }
+ }
+}
+
+/* Delete all the dynamic FDB entries */
+static void vsc9953_mac_table_flush(int port, int vid)
+{
+ vsc9953_mac_table_age(port, vid);
+ vsc9953_mac_table_age(port, vid);
+}
+
static int vsc9953_port_status_key_func(struct ethsw_command_def *parsed_cmd)
{
int i;
@@ -949,6 +1332,91 @@ static int vsc9953_learn_set_key_func(struct ethsw_command_def *parsed_cmd)
return CMD_RET_SUCCESS;
}
+static int vsc9953_fdb_show_key_func(struct ethsw_command_def *parsed_cmd)
+{
+ if (parsed_cmd->port != ETHSW_CMD_PORT_ALL &&
+ !VSC9953_PORT_CHECK(parsed_cmd->port)) {
+ printf("Invalid port number: %d\n", parsed_cmd->port);
+ return CMD_RET_FAILURE;
+ }
+
+ if (parsed_cmd->vid != ETHSW_CMD_VLAN_ALL &&
+ !VSC9953_VLAN_CHECK(parsed_cmd->vid)) {
+ printf("Invalid VID number: %d\n", parsed_cmd->vid);
+ return CMD_RET_FAILURE;
+ }
+
+ vsc9953_mac_table_show(parsed_cmd->port, parsed_cmd->vid);
+
+ return CMD_RET_SUCCESS;
+}
+
+static int vsc9953_fdb_flush_key_func(struct ethsw_command_def *parsed_cmd)
+{
+ if (parsed_cmd->port != ETHSW_CMD_PORT_ALL &&
+ !VSC9953_PORT_CHECK(parsed_cmd->port)) {
+ printf("Invalid port number: %d\n", parsed_cmd->port);
+ return CMD_RET_FAILURE;
+ }
+
+ if (parsed_cmd->vid != ETHSW_CMD_VLAN_ALL &&
+ !VSC9953_VLAN_CHECK(parsed_cmd->vid)) {
+ printf("Invalid VID number: %d\n", parsed_cmd->vid);
+ return CMD_RET_FAILURE;
+ }
+
+ vsc9953_mac_table_flush(parsed_cmd->port, parsed_cmd->vid);
+
+ return CMD_RET_SUCCESS;
+}
+
+static int vsc9953_fdb_entry_add_key_func(struct ethsw_command_def *parsed_cmd)
+{
+ int vid;
+
+ /* a port number must be present */
+ if (parsed_cmd->port == ETHSW_CMD_PORT_ALL) {
+ printf("Please specify a port\n");
+ return CMD_RET_FAILURE;
+ }
+
+ if (!VSC9953_PORT_CHECK(parsed_cmd->port)) {
+ printf("Invalid port number: %d\n", parsed_cmd->port);
+ return CMD_RET_FAILURE;
+ }
+
+ /* Use VLAN 1 if VID is not set */
+ vid = (parsed_cmd->vid == ETHSW_CMD_VLAN_ALL ? 1 : parsed_cmd->vid);
+
+ if (!VSC9953_VLAN_CHECK(vid)) {
+ printf("Invalid VID number: %d\n", vid);
+ return CMD_RET_FAILURE;
+ }
+
+ if (vsc9953_mac_table_add(parsed_cmd->port, parsed_cmd->ethaddr, vid))
+ return CMD_RET_FAILURE;
+
+ return CMD_RET_SUCCESS;
+}
+
+static int vsc9953_fdb_entry_del_key_func(struct ethsw_command_def *parsed_cmd)
+{
+ int vid;
+
+ /* Use VLAN 1 if VID is not set */
+ vid = (parsed_cmd->vid == ETHSW_CMD_VLAN_ALL ? 1 : parsed_cmd->vid);
+
+ if (!VSC9953_VLAN_CHECK(vid)) {
+ printf("Invalid VID number: %d\n", vid);
+ return CMD_RET_FAILURE;
+ }
+
+ if (vsc9953_mac_table_del(parsed_cmd->ethaddr, vid))
+ return CMD_RET_FAILURE;
+
+ return CMD_RET_SUCCESS;
+}
+
static struct ethsw_command_func vsc9953_cmd_func = {
.ethsw_name = "L2 Switch VSC9953",
.port_enable = &vsc9953_port_status_key_func,
@@ -958,6 +1426,10 @@ static struct ethsw_command_func vsc9953_cmd_func = {
.port_stats_clear = &vsc9953_port_stats_clear_key_func,
.port_learn = &vsc9953_learn_set_key_func,
.port_learn_show = &vsc9953_learn_show_key_func,
+ .fdb_show = &vsc9953_fdb_show_key_func,
+ .fdb_flush = &vsc9953_fdb_flush_key_func,
+ .fdb_entry_add = &vsc9953_fdb_entry_add_key_func,
+ .fdb_entry_del = &vsc9953_fdb_entry_del_key_func,
};
#endif /* CONFIG_CMD_ETHSW */