[PATCH 07/14] drivers: net: dsa: qca8k: limit priority tweak to qca8337 switch

Ansuel Smith
2021-04-23T01:48:38Z

The packet priority tweak and the rx delay is specific to qca8337.
Limit this changes to qca8337 as now we also support 8327 switch.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
drivers/net/dsa/qca8k.c | 84 +++++++++++++++++++++++------------------
1 file changed, 48 insertions(+), 36 deletions(-)

diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index ca12394c2ff7..19bb3754d9ec 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -700,9 +700,13 @@ static int
qca8k_setup(struct dsa_switch *ds)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
+ const struct qca8k_match_data *data;
int ret, i;
u32 mask;

+ /* get the switches ID from the compatible */
+ data = of_device_get_match_data(priv->dev);
+
/* Make sure that port 0 is the cpu port */
if (!dsa_is_cpu_port(ds, 0)) {
pr_err("port 0 is not the CPU port\n");
@@ -790,41 +794,43 @@ qca8k_setup(struct dsa_switch *ds)
* To fix this the original code has some specific priority values
* suggested by the QCA switch team.
*/
- for (i = 0; i < QCA8K_NUM_PORTS; i++) {
- switch (i) {
- /* The 2 CPU port and port 5 requires some different
- * priority than any other ports.
- */
- case 0:
- case 5:
- case 6:
- mask = QCA8K_PORT_HOL_CTRL0_EG_PRI0(0x3) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI1(0x4) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI2(0x4) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI3(0x4) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI4(0x6) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI5(0x8) |
- QCA8K_PORT_HOL_CTRL0_EG_PORT(0x1e);
- break;
- default:
- mask = QCA8K_PORT_HOL_CTRL0_EG_PRI0(0x3) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI1(0x4) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI2(0x6) |
- QCA8K_PORT_HOL_CTRL0_EG_PRI3(0x8) |
- QCA8K_PORT_HOL_CTRL0_EG_PORT(0x19);
+ if (data->id == QCA8K_ID_QCA8337) {
+ for (i = 0; i < QCA8K_NUM_PORTS; i++) {
+ switch (i) {
+ /* The 2 CPU port and port 5 requires some different
+ * priority than any other ports.
+ */
+ case 0:
+ case 5:
+ case 6:
+ mask = QCA8K_PORT_HOL_CTRL0_EG_PRI0(0x3) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI1(0x4) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI2(0x4) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI3(0x4) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI4(0x6) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI5(0x8) |
+ QCA8K_PORT_HOL_CTRL0_EG_PORT(0x1e);
+ break;
+ default:
+ mask = QCA8K_PORT_HOL_CTRL0_EG_PRI0(0x3) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI1(0x4) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI2(0x6) |
+ QCA8K_PORT_HOL_CTRL0_EG_PRI3(0x8) |
+ QCA8K_PORT_HOL_CTRL0_EG_PORT(0x19);
+ }
+ qca8k_write(priv, QCA8K_REG_PORT_HOL_CTRL0(i), mask);
+
+ mask = QCA8K_PORT_HOL_CTRL1_ING(0x6) |
+ QCA8K_PORT_HOL_CTRL1_EG_PRI_BUF_EN |
+ QCA8K_PORT_HOL_CTRL1_EG_PORT_BUF_EN |
+ QCA8K_PORT_HOL_CTRL1_WRED_EN;
+ qca8k_rmw(priv, QCA8K_REG_PORT_HOL_CTRL1(i),
+ QCA8K_PORT_HOL_CTRL1_ING_BUF |
+ QCA8K_PORT_HOL_CTRL1_EG_PRI_BUF_EN |
+ QCA8K_PORT_HOL_CTRL1_EG_PORT_BUF_EN |
+ QCA8K_PORT_HOL_CTRL1_WRED_EN,
+ mask);
}
- qca8k_write(priv, QCA8K_REG_PORT_HOL_CTRL0(i), mask);
-
- mask = QCA8K_PORT_HOL_CTRL1_ING(0x6) |
- QCA8K_PORT_HOL_CTRL1_EG_PRI_BUF_EN |
- QCA8K_PORT_HOL_CTRL1_EG_PORT_BUF_EN |
- QCA8K_PORT_HOL_CTRL1_WRED_EN;
- qca8k_rmw(priv, QCA8K_REG_PORT_HOL_CTRL1(i),
- QCA8K_PORT_HOL_CTRL1_ING_BUF |
- QCA8K_PORT_HOL_CTRL1_EG_PRI_BUF_EN |
- QCA8K_PORT_HOL_CTRL1_EG_PORT_BUF_EN |
- QCA8K_PORT_HOL_CTRL1_WRED_EN,
- mask);
}

/* Flush the FDB table */
@@ -840,9 +846,13 @@ static void
qca8k_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
const struct phylink_link_state *state)
{
+ const struct qca8k_match_data *data;
struct qca8k_priv *priv = ds->priv;
u32 reg, val;

+ /* get the switches ID from the compatible */
+ data = of_device_get_match_data(priv->dev);
+
switch (port) {
case 0: /* 1st CPU port */
if (state->interface != PHY_INTERFACE_MODE_RGMII &&
@@ -895,8 +905,10 @@ qca8k_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
QCA8K_PORT_PAD_RGMII_RX_DELAY(2) |
QCA8K_PORT_PAD_RGMII_TX_DELAY_EN |
QCA8K_PORT_PAD_RGMII_RX_DELAY_EN);
- qca8k_write(priv, QCA8K_REG_PORT5_PAD_CTRL,
- QCA8K_PORT_PAD_RGMII_RX_DELAY_EN);
+ /* QCA8337 requires to set rgmii rx delay */
+ if (data->id == QCA8K_ID_QCA8337)
+ qca8k_write(priv, QCA8K_REG_PORT5_PAD_CTRL,
+ QCA8K_PORT_PAD_RGMII_RX_DELAY_EN);
break;
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_1000BASEX:
--
2.30.2