Messages in this thread Patch in this message | | | From | Elad Nachman <> | Subject | [PATCH v2 4/5] net: marvell: prestera: force good base mac | Date | Wed, 20 Mar 2024 19:20:07 +0200 |
| |
From: Elad Nachman <enachman@marvell.com>
The switching ASIC router HW unit MAC Source Address is configured with 40-bits of MAC base address in its registers (done in the firmware code), requiring all ports doing L3 routing in HW to have the same upper 40-bit MAC address.
Since each switchport MAC address uses the switch base mac address and then adds the physical port number to it, Force the last byte of the switch base mac address to be at most 127, so when adding to it, we will not wrap around the previous (more significant) mac address byte, resulting in a warning message.
Fixes: 501ef3066c89 ("net: marvell: prestera: Add driver for Prestera family ASIC devices") Signed-off-by: Elad Nachman <enachman@marvell.com> --- drivers/net/ethernet/marvell/prestera/prestera_main.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c index bcaa8ea27b49..87d8fc4162b3 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c @@ -860,6 +860,7 @@ static int prestera_switch_set_base_mac_addr(struct prestera_switch *sw) ret = of_get_mac_address(sw->np, sw->base_mac); if (!is_valid_ether_addr(sw->base_mac) || ret) { eth_random_addr(sw->base_mac); + sw->base_mac[5] &= 0x7f; dev_info(prestera_dev(sw), "using random base mac address\n"); } -- 2.25.1
| |