ddcebda08b
Add kernel tag that introduced the patch on backport patch. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
105 lines
2.7 KiB
Diff
105 lines
2.7 KiB
Diff
From 4f3701fc599820568ba4395070d34e4248800fc0 Mon Sep 17 00:00:00 2001
|
|
From: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Date: Wed, 2 Feb 2022 01:03:35 +0100
|
|
Subject: [PATCH 16/16] net: dsa: qca8k: introduce qca8k_bulk_read/write
|
|
function
|
|
|
|
Introduce qca8k_bulk_read/write() function to use mgmt Ethernet way to
|
|
read/write packet in bulk. Make use of this new function in the fdb
|
|
function and while at it reduce the reg for fdb_read from 4 to 3 as the
|
|
max bit for the ARL(fdb) table is 83 bits.
|
|
|
|
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
drivers/net/dsa/qca8k.c | 55 ++++++++++++++++++++++++++++++++---------
|
|
1 file changed, 43 insertions(+), 12 deletions(-)
|
|
|
|
--- a/drivers/net/dsa/qca8k.c
|
|
+++ b/drivers/net/dsa/qca8k.c
|
|
@@ -412,6 +412,43 @@ qca8k_regmap_update_bits_eth(struct qca8
|
|
}
|
|
|
|
static int
|
|
+qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
|
|
+{
|
|
+ int i, count = len / sizeof(u32), ret;
|
|
+
|
|
+ if (priv->mgmt_master && !qca8k_read_eth(priv, reg, val, len))
|
|
+ return 0;
|
|
+
|
|
+ for (i = 0; i < count; i++) {
|
|
+ ret = regmap_read(priv->regmap, reg + (i * 4), val + i);
|
|
+ if (ret < 0)
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int
|
|
+qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
|
|
+{
|
|
+ int i, count = len / sizeof(u32), ret;
|
|
+ u32 tmp;
|
|
+
|
|
+ if (priv->mgmt_master && !qca8k_write_eth(priv, reg, val, len))
|
|
+ return 0;
|
|
+
|
|
+ for (i = 0; i < count; i++) {
|
|
+ tmp = val[i];
|
|
+
|
|
+ ret = regmap_write(priv->regmap, reg + (i * 4), tmp);
|
|
+ if (ret < 0)
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int
|
|
qca8k_regmap_read(void *ctx, uint32_t reg, uint32_t *val)
|
|
{
|
|
struct qca8k_priv *priv = (struct qca8k_priv *)ctx;
|
|
@@ -546,17 +583,13 @@ qca8k_busy_wait(struct qca8k_priv *priv,
|
|
static int
|
|
qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
|
|
{
|
|
- u32 reg[4], val;
|
|
- int i, ret;
|
|
+ u32 reg[3];
|
|
+ int ret;
|
|
|
|
/* load the ARL table into an array */
|
|
- for (i = 0; i < 4; i++) {
|
|
- ret = qca8k_read(priv, QCA8K_REG_ATU_DATA0 + (i * 4), &val);
|
|
- if (ret < 0)
|
|
- return ret;
|
|
-
|
|
- reg[i] = val;
|
|
- }
|
|
+ ret = qca8k_bulk_read(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
|
|
+ if (ret)
|
|
+ return ret;
|
|
|
|
/* vid - 83:72 */
|
|
fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
|
|
@@ -580,7 +613,6 @@ qca8k_fdb_write(struct qca8k_priv *priv,
|
|
u8 aging)
|
|
{
|
|
u32 reg[3] = { 0 };
|
|
- int i;
|
|
|
|
/* vid - 83:72 */
|
|
reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
|
|
@@ -597,8 +629,7 @@ qca8k_fdb_write(struct qca8k_priv *priv,
|
|
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR5_MASK, mac[5]);
|
|
|
|
/* load the array into the ARL table */
|
|
- for (i = 0; i < 3; i++)
|
|
- qca8k_write(priv, QCA8K_REG_ATU_DATA0 + (i * 4), reg[i]);
|
|
+ qca8k_bulk_write(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
|
|
}
|
|
|
|
static int
|