+++ /dev/null
-From 040e926f5813a5f4cc18dbff7c942d1e52f368f2 Mon Sep 17 00:00:00 2001
-From: Ansuel Smith <ansuelsmth@gmail.com>
-Date: Tue, 19 Oct 2021 02:08:50 +0200
-Subject: net: dsa: qca8k: tidy for loop in setup and add cpu port check
-
-Tidy and organize qca8k setup function from multiple for loop.
-Change for loop in bridge leave/join to scan all port and skip cpu port.
-No functional change intended.
-
-Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/dsa/qca8k.c | 74 +++++++++++++++++++++++++++++--------------------
- 1 file changed, 44 insertions(+), 30 deletions(-)
-
---- a/drivers/net/dsa/qca8k.c
-+++ b/drivers/net/dsa/qca8k.c
-@@ -1122,28 +1122,34 @@ qca8k_setup(struct dsa_switch *ds)
- if (ret)
- dev_warn(priv->dev, "mib init failed");
-
-- /* Enable QCA header mode on the cpu port */
-- ret = qca8k_write(priv, QCA8K_REG_PORT_HDR_CTRL(cpu_port),
-- QCA8K_PORT_HDR_CTRL_ALL << QCA8K_PORT_HDR_CTRL_TX_S |
-- QCA8K_PORT_HDR_CTRL_ALL << QCA8K_PORT_HDR_CTRL_RX_S);
-- if (ret) {
-- dev_err(priv->dev, "failed enabling QCA header mode");
-- return ret;
-- }
--
-- /* Disable forwarding by default on all ports */
-+ /* Initial setup of all ports */
- for (i = 0; i < QCA8K_NUM_PORTS; i++) {
-+ /* Disable forwarding by default on all ports */
- ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(i),
- QCA8K_PORT_LOOKUP_MEMBER, 0);
- if (ret)
- return ret;
-- }
-
-- /* Disable MAC by default on all ports */
-- for (i = 1; i < QCA8K_NUM_PORTS; i++)
-- qca8k_port_set_status(priv, i, 0);
-+ /* Enable QCA header mode on all cpu ports */
-+ if (dsa_is_cpu_port(ds, i)) {
-+ ret = qca8k_write(priv, QCA8K_REG_PORT_HDR_CTRL(i),
-+ QCA8K_PORT_HDR_CTRL_ALL << QCA8K_PORT_HDR_CTRL_TX_S |
-+ QCA8K_PORT_HDR_CTRL_ALL << QCA8K_PORT_HDR_CTRL_RX_S);
-+ if (ret) {
-+ dev_err(priv->dev, "failed enabling QCA header mode");
-+ return ret;
-+ }
-+ }
-+
-+ /* Disable MAC by default on all user ports */
-+ if (dsa_is_user_port(ds, i))
-+ qca8k_port_set_status(priv, i, 0);
-+ }
-
-- /* Forward all unknown frames to CPU port for Linux processing */
-+ /* Forward all unknown frames to CPU port for Linux processing
-+ * Notice that in multi-cpu config only one port should be set
-+ * for igmp, unknown, multicast and broadcast packet
-+ */
- ret = qca8k_write(priv, QCA8K_REG_GLOBAL_FW_CTRL1,
- BIT(cpu_port) << QCA8K_GLOBAL_FW_CTRL1_IGMP_DP_S |
- BIT(cpu_port) << QCA8K_GLOBAL_FW_CTRL1_BC_DP_S |
-@@ -1152,11 +1158,13 @@ qca8k_setup(struct dsa_switch *ds)
- if (ret)
- return ret;
-
-- /* Setup connection between CPU port & user ports */
-+ /* Setup connection between CPU port & user ports
-+ * Configure specific switch configuration for ports
-+ */
- for (i = 0; i < QCA8K_NUM_PORTS; i++) {
- /* CPU port gets connected to all user ports of the switch */
- if (dsa_is_cpu_port(ds, i)) {
-- ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(cpu_port),
-+ ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(i),
- QCA8K_PORT_LOOKUP_MEMBER, dsa_user_ports(ds));
- if (ret)
- return ret;
-@@ -1193,16 +1201,14 @@ qca8k_setup(struct dsa_switch *ds)
- if (ret)
- return ret;
- }
-- }
-
-- /* The port 5 of the qca8337 have some problem in flood condition. The
-- * original legacy driver had some specific buffer and priority settings
-- * for the different port suggested by the QCA switch team. Add this
-- * missing settings to improve switch stability under load condition.
-- * This problem is limited to qca8337 and other qca8k switch are not affected.
-- */
-- if (priv->switch_id == QCA8K_ID_QCA8337) {
-- for (i = 0; i < QCA8K_NUM_PORTS; i++) {
-+ /* The port 5 of the qca8337 have some problem in flood condition. The
-+ * original legacy driver had some specific buffer and priority settings
-+ * for the different port suggested by the QCA switch team. Add this
-+ * missing settings to improve switch stability under load condition.
-+ * This problem is limited to qca8337 and other qca8k switch are not affected.
-+ */
-+ if (priv->switch_id == QCA8K_ID_QCA8337) {
- switch (i) {
- /* The 2 CPU port and port 5 requires some different
- * priority than any other ports.
-@@ -1238,6 +1244,12 @@ qca8k_setup(struct dsa_switch *ds)
- QCA8K_PORT_HOL_CTRL1_WRED_EN,
- mask);
- }
-+
-+ /* Set initial MTU for every port.
-+ * We have only have a general MTU setting. So track
-+ * every port and set the max across all port.
-+ */
-+ priv->port_mtu[i] = ETH_FRAME_LEN + ETH_FCS_LEN;
- }
-
- /* Special GLOBAL_FC_THRESH value are needed for ar8327 switch */
-@@ -1251,8 +1263,6 @@ qca8k_setup(struct dsa_switch *ds)
- }
-
- /* Setup our port MTUs to match power on defaults */
-- for (i = 0; i < QCA8K_NUM_PORTS; i++)
-- priv->port_mtu[i] = ETH_FRAME_LEN + ETH_FCS_LEN;
- ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, ETH_FRAME_LEN + ETH_FCS_LEN);
- if (ret)
- dev_warn(priv->dev, "failed setting MTU settings");
-@@ -1728,7 +1738,9 @@ qca8k_port_bridge_join(struct dsa_switch
- cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
- port_mask = BIT(cpu_port);
-
-- for (i = 1; i < QCA8K_NUM_PORTS; i++) {
-+ for (i = 0; i < QCA8K_NUM_PORTS; i++) {
-+ if (dsa_is_cpu_port(ds, i))
-+ continue;
- if (dsa_to_port(ds, i)->bridge_dev != br)
- continue;
- /* Add this port to the portvlan mask of the other ports
-@@ -1758,7 +1770,9 @@ qca8k_port_bridge_leave(struct dsa_switc
-
- cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
-
-- for (i = 1; i < QCA8K_NUM_PORTS; i++) {
-+ for (i = 0; i < QCA8K_NUM_PORTS; i++) {
-+ if (dsa_is_cpu_port(ds, i))
-+ continue;
- if (dsa_to_port(ds, i)->bridge_dev != br)
- continue;
- /* Remove this port to the portvlan mask of the other ports
projects / openwrt / openwrt.git / blobdiff