Thread (58 messages) 58 messages, 4 authors, 2022-02-03

Re: [RFC PATCH v7 16/16] net: dsa: qca8k: introduce qca8k_bulk_read/write function

From: Florian Fainelli <f.fainelli@gmail.com>
Date: 2022-01-26 03:45:40
Also in: lkml


On 1/22/2022 5:33 PM, Ansuel Smith wrote:
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.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
[snip]
quoted hunk ↗ jump to hunk
  static int
  qca8k_regmap_read(void *ctx, uint32_t reg, uint32_t *val)
  {
@@ -535,17 +572,13 @@ qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
  static int
  qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
  {
-	u32 reg[4], val;
-	int i, ret;
+	u32 reg[4];
+	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, 12);
sizeof(reg)? How did you come up with 12 if we were executing the loop 4 
times before or were we reading too much?
quoted hunk ↗ jump to hunk
+	if (ret)
+		return ret;
  
  	/* vid - 83:72 */
  	fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
@@ -569,7 +602,6 @@ qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask, const u8 *mac,
  		u8 aging)
  {
  	u32 reg[3] = { 0 };
-	int i;
  
  	/* vid - 83:72 */
  	reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
@@ -586,8 +618,7 @@ qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask, const u8 *mac,
  	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, 12);
sizeof(reg) would be more adequate here.
-- 
Florian
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help