diff options
Diffstat (limited to 'pkgs/patches-linux-5.15/766-16-net-dsa-qca8k-introduce-qca8k_bulk_read-write-functi.patch')
| -rw-r--r-- | pkgs/patches-linux-5.15/766-16-net-dsa-qca8k-introduce-qca8k_bulk_read-write-functi.patch | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/766-16-net-dsa-qca8k-introduce-qca8k_bulk_read-write-functi.patch b/pkgs/patches-linux-5.15/766-16-net-dsa-qca8k-introduce-qca8k_bulk_read-write-functi.patch new file mode 100644 index 0000000..f26c6b9 --- /dev/null +++ b/pkgs/patches-linux-5.15/766-16-net-dsa-qca8k-introduce-qca8k_bulk_read-write-functi.patch @@ -0,0 +1,104 @@ +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 |