admin/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2025-12-07 20:06:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

net: dsa: microchip: enable port queues for tc mqprio

Browse Source 
LAN937x family of switches has 8 queues per port where the KSZ switches
has 4 queues per port. By default, only one queue per port is enabled.
The queues are configurable in 2, 4 or 8. This patch add 8 number of
queues for LAN937x and 4 for other switches.
In the tag_ksz.c file, prioirty of the packet is queried using the skb
buffer and the corresponding value is updated in the tag.

Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Arun Ramadoss
2023-01-20 10:51:34 +05:30
committed by Jakub Kicinski
parent 3176eb8268
commit e30f33a5f5
7 changed files with 62 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/dsa/microchip/lan937x_main.c
View File

@@ -15,6 +15,7 @@
#include "lan937x_reg.h"
#include "ksz_common.h"
#include "ksz9477.h"
#include "lan937x.h"
static int lan937x_cfg(struct ksz_device *dev, u32 addr, u8 bits, bool set)
@@ -180,6 +181,9 @@ void lan937x_port_setup(struct ksz_device *dev, int port, bool cpu_port)
lan937x_port_cfg(dev, port, REG_PORT_CTRL_0,
PORT_TAIL_TAG_ENABLE, true);
/* Enable the Port Queue split */
ksz9477_port_queue_split(dev, port);
/* set back pressure for half duplex */
lan937x_port_cfg(dev, port, REG_PORT_MAC_CTRL_1, PORT_BACK_PRESSURE,
true);