diff mbox series

[net-next] net: mvpp2: reduce tx-fifo for loopback port

Message ID 1613311803-17806-1-git-send-email-stefanc@marvell.com
State New
Headers show
Series [net-next] net: mvpp2: reduce tx-fifo for loopback port | expand

Commit Message

Stefan Chulski Feb. 14, 2021, 2:10 p.m. UTC 
From: Stefan Chulski <stefanc@marvell.com>

1KB is enough for loopback port, so 2KB can be distributed
between other ports.

Signed-off-by: Stefan Chulski <stefanc@marvell.com>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h      |  4 ++--
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 10 +++++-----
 2 files changed, 7 insertions(+), 7 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org Feb. 15, 2021, 9:40 p.m. UTC | #1 
Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Sun, 14 Feb 2021 16:10:03 +0200 you wrote:
> From: Stefan Chulski <stefanc@marvell.com>

> 

> 1KB is enough for loopback port, so 2KB can be distributed

> between other ports.

> 

> Signed-off-by: Stefan Chulski <stefanc@marvell.com>

> 

> [...]


Here is the summary with links:
  - [net-next] net: mvpp2: reduce tx-fifo for loopback port
    https://git.kernel.org/netdev/net-next/c/7c29451550cc

You are awesome, thank you!
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diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
index 373ede3..8edba5e 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
@@ -763,9 +763,9 @@ 
 #define MVPP2_RX_FIFO_PORT_MIN_PKT		0x80
 
 /* TX FIFO constants */
-#define MVPP22_TX_FIFO_DATA_SIZE_16KB		16
+#define MVPP22_TX_FIFO_DATA_SIZE_18KB		18
 #define MVPP22_TX_FIFO_DATA_SIZE_10KB		10
-#define MVPP22_TX_FIFO_DATA_SIZE_3KB		3
+#define MVPP22_TX_FIFO_DATA_SIZE_1KB		1
 #define MVPP2_TX_FIFO_THRESHOLD_MIN		256 /* Bytes */
 #define MVPP2_TX_FIFO_THRESHOLD(kb)	\
 		((kb) * 1024 - MVPP2_TX_FIFO_THRESHOLD_MIN)
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 9d56ea4..222e9a3 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7093,8 +7093,8 @@  static void mvpp22_tx_fifo_set_hw(struct mvpp2 *priv, int port, int size)
 }
 
 /* Initialize TX FIFO's: the total FIFO size is 19kB on PPv2.2 and PPv2.3.
- * 3kB fixed space must be assigned for the loopback port.
- * Redistribute remaining avialable 16kB space among all active ports.
+ * 1kB fixed space must be assigned for the loopback port.
+ * Redistribute remaining avialable 18kB space among all active ports.
  * The 10G interface should use 10kB (which is maximum possible size
  * per single port).
  */
@@ -7105,9 +7105,9 @@  static void mvpp22_tx_fifo_init(struct mvpp2 *priv)
 	int size_remainder;
 	int port, size;
 
-	/* The loopback requires fixed 3kB of the FIFO space assignment. */
+	/* The loopback requires fixed 1kB of the FIFO space assignment. */
 	mvpp22_tx_fifo_set_hw(priv, MVPP2_LOOPBACK_PORT_INDEX,
-			      MVPP22_TX_FIFO_DATA_SIZE_3KB);
+			      MVPP22_TX_FIFO_DATA_SIZE_1KB);
 	port_map = priv->port_map & ~BIT(MVPP2_LOOPBACK_PORT_INDEX);
 
 	/* Set TX FIFO size to 0 for inactive ports. */
@@ -7115,7 +7115,7 @@  static void mvpp22_tx_fifo_init(struct mvpp2 *priv)
 		mvpp22_tx_fifo_set_hw(priv, port, 0);
 
 	/* Assign remaining TX FIFO space among all active ports. */
-	size_remainder = MVPP22_TX_FIFO_DATA_SIZE_16KB;
+	size_remainder = MVPP22_TX_FIFO_DATA_SIZE_18KB;
 	remaining_ports_count = hweight_long(port_map);
 
 	for_each_set_bit(port, &port_map, MVPP2_LOOPBACK_PORT_INDEX) {