git.openwrt.org Git - openwrt/staging/thess.git/blob

   1 From 8e38e08f2c560328a873c35aff1a0dbea6a7d084 Mon Sep 17 00:00:00 2001
   2 From: Lorenzo Bianconi <lorenzo@kernel.org>
   3 Date: Tue, 1 Oct 2024 12:10:25 +0200
   4 Subject: [PATCH 2/2] net: airoha: fix PSE memory configuration in
   5  airoha_fe_pse_ports_init()
   6
   7 Align PSE memory configuration to vendor SDK. In particular, increase
   8 initial value of PSE reserved memory in airoha_fe_pse_ports_init()
   9 routine by the value used for the second Packet Processor Engine (PPE2)
  10 and do not overwrite the default value.
  11
  12 Introduced by commit 23020f049327 ("net: airoha: Introduce ethernet support
  13 for EN7581 SoC")
  14
  15 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  16 Reviewed-by: Simon Horman <horms@kernel.org>
  17 Link: https://patch.msgid.link/20241001-airoha-eth-pse-fix-v2-2-9a56cdffd074@kernel.org
  18 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  19 ---
  20  drivers/net/ethernet/mediatek/airoha_eth.c | 6 ++++--
  21  1 file changed, 4 insertions(+), 2 deletions(-)
  22
  23 --- a/drivers/net/ethernet/mediatek/airoha_eth.c
  24 +++ b/drivers/net/ethernet/mediatek/airoha_eth.c
  25 @@ -1166,11 +1166,13 @@ static void airoha_fe_pse_ports_init(str
  26                 [FE_PSE_PORT_GDM4] = 2,
  27                 [FE_PSE_PORT_CDM5] = 2,
  28         };
  29 +       u32 all_rsv;
  30         int q;
  31
  32 +       all_rsv = airoha_fe_get_pse_all_rsv(eth);
  33         /* hw misses PPE2 oq rsv */
  34 -       airoha_fe_set(eth, REG_FE_PSE_BUF_SET,
  35 -                     PSE_RSV_PAGES * pse_port_num_queues[FE_PSE_PORT_PPE2]);
  36 +       all_rsv += PSE_RSV_PAGES * pse_port_num_queues[FE_PSE_PORT_PPE2];
  37 +       airoha_fe_set(eth, REG_FE_PSE_BUF_SET, all_rsv);
  38
  39         /* CMD1 */
  40         for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_CDM1]; q++)