* [PATCH net-next 1/2] Revert "r8169: avoid link-up interrupt issue on RTL8106e if user enables ASPM"
2021-08-06 9:15 [PATCH net-next 0/2] r8169: adjust the setting for RTL8106e Hayes Wang
@ 2021-08-06 9:15 ` Hayes Wang
2021-08-06 9:15 ` [PATCH net-next 2/2] r8169: change the L0/L1 entrance latencies for RTL8106e Hayes Wang
2021-08-07 8:40 ` [PATCH net-next 0/2] r8169: adjust the setting " patchwork-bot+netdevbpf
2 siblings, 0 replies; 6+ messages in thread
From: Hayes Wang @ 2021-08-06 9:15 UTC (permalink / raw)
To: hkallweit1; +Cc: netdev, nic_swsd, koba.ko, Hayes Wang
This reverts commit 1ee8856de82faec9bc8bd0f2308a7f27e30ba207.
This is used to re-enable ASPM on RTL8106e, if it is possible.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
---
drivers/net/ethernet/realtek/r8169_main.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index fa2dab6980bb..d2647036b1e7 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -3508,6 +3508,7 @@ static void rtl_hw_start_8106(struct rtl8169_private *tp)
rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
rtl_pcie_state_l2l3_disable(tp);
+ rtl_hw_aspm_clkreq_enable(tp, true);
}
DECLARE_RTL_COND(rtl_mac_ocp_e00e_cond)
--
2.31.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH net-next 2/2] r8169: change the L0/L1 entrance latencies for RTL8106e
2021-08-06 9:15 [PATCH net-next 0/2] r8169: adjust the setting for RTL8106e Hayes Wang
2021-08-06 9:15 ` [PATCH net-next 1/2] Revert "r8169: avoid link-up interrupt issue on RTL8106e if user enables ASPM" Hayes Wang
@ 2021-08-06 9:15 ` Hayes Wang
2021-08-06 21:27 ` Heiner Kallweit
2021-08-07 8:40 ` [PATCH net-next 0/2] r8169: adjust the setting " patchwork-bot+netdevbpf
2 siblings, 1 reply; 6+ messages in thread
From: Hayes Wang @ 2021-08-06 9:15 UTC (permalink / raw)
To: hkallweit1; +Cc: netdev, nic_swsd, koba.ko, Hayes Wang
The original L0 and L1 entrance latencies of RTL8106e are 4us. And
they cause the delay of link-up interrupt when enabling ASPM. Change
the L0 entrance latency to 7us and L1 entrance latency to 32us. Then,
they could avoid the issue.
Tested-by: Koba Ko <koba.ko@canonical.com>
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
---
drivers/net/ethernet/realtek/r8169_main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index d2647036b1e7..2c643ec36bdf 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -3502,6 +3502,9 @@ static void rtl_hw_start_8106(struct rtl8169_private *tp)
RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
+ /* The default value is 0x13. Change it to 0x2f */
+ rtl_csi_access_enable(tp, 0x2f);
+
rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
/* disable EEE */
--
2.31.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH net-next 2/2] r8169: change the L0/L1 entrance latencies for RTL8106e
2021-08-06 9:15 ` [PATCH net-next 2/2] r8169: change the L0/L1 entrance latencies for RTL8106e Hayes Wang
@ 2021-08-06 21:27 ` Heiner Kallweit
2021-08-07 3:50 ` Hayes Wang
0 siblings, 1 reply; 6+ messages in thread
From: Heiner Kallweit @ 2021-08-06 21:27 UTC (permalink / raw)
To: Hayes Wang; +Cc: netdev, nic_swsd, koba.ko
On 06.08.2021 11:15, Hayes Wang wrote:
> The original L0 and L1 entrance latencies of RTL8106e are 4us. And
> they cause the delay of link-up interrupt when enabling ASPM. Change
> the L0 entrance latency to 7us and L1 entrance latency to 32us. Then,
> they could avoid the issue.
>
> Tested-by: Koba Ko <koba.ko@canonical.com>
> Signed-off-by: Hayes Wang <hayeswang@realtek.com>
> ---
> drivers/net/ethernet/realtek/r8169_main.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
> index d2647036b1e7..2c643ec36bdf 100644
> --- a/drivers/net/ethernet/realtek/r8169_main.c
> +++ b/drivers/net/ethernet/realtek/r8169_main.c
> @@ -3502,6 +3502,9 @@ static void rtl_hw_start_8106(struct rtl8169_private *tp)
> RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
> RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
>
> + /* The default value is 0x13. Change it to 0x2f */
> + rtl_csi_access_enable(tp, 0x2f);
Most chip versions use rtl_set_def_aspm_entry_latency() that sets
the value to 0x27. Does this value also work for RTL8106e?
Then we could simply use the same call here.
Can you explain how the L0 and L1 times in us map to the
register value? Then we could add a function that doesn't work
with a magic value but takes the L0 and L1 times in us as
parameter.
> +
> rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
>
> /* disable EEE */
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH net-next 2/2] r8169: change the L0/L1 entrance latencies for RTL8106e
2021-08-06 21:27 ` Heiner Kallweit
@ 2021-08-07 3:50 ` Hayes Wang
0 siblings, 0 replies; 6+ messages in thread
From: Hayes Wang @ 2021-08-07 3:50 UTC (permalink / raw)
To: Heiner Kallweit; +Cc: netdev, nic_swsd, koba.ko
Heiner Kallweit <hkallweit1@gmail.com>
> Sent: Saturday, August 7, 2021 5:28 AM
[...]
> Most chip versions use rtl_set_def_aspm_entry_latency() that sets
> the value to 0x27. Does this value also work for RTL8106e?
No, it doesn't work.
> Can you explain how the L0 and L1 times in us map to the
> register value? Then we could add a function that doesn't work
> with a magic value but takes the L0 and L1 times in us as
> parameter.
L0 (bit 0~2):
0: 1us
1: 2us
2: 3us
3: 4us
4: 5us
5: 6us
6: 7us
7: 7us (The maximum is 7us)
L1 (bit 3~5):
0: 1us
1: 2us
2: 4us
3: 8us
4: 16us
5: 32us
6: 64us
7: 64us (The maximum is 64us)
Best Regards,
Hayes
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH net-next 0/2] r8169: adjust the setting for RTL8106e
2021-08-06 9:15 [PATCH net-next 0/2] r8169: adjust the setting for RTL8106e Hayes Wang
2021-08-06 9:15 ` [PATCH net-next 1/2] Revert "r8169: avoid link-up interrupt issue on RTL8106e if user enables ASPM" Hayes Wang
2021-08-06 9:15 ` [PATCH net-next 2/2] r8169: change the L0/L1 entrance latencies for RTL8106e Hayes Wang
@ 2021-08-07 8:40 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 6+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-08-07 8:40 UTC (permalink / raw)
To: Hayes Wang; +Cc: hkallweit1, netdev, nic_swsd, koba.ko
Hello:
This series was applied to netdev/net.git (refs/heads/master):
On Fri, 6 Aug 2021 17:15:54 +0800 you wrote:
> These patches are uesed to avoid the delay of link-up interrupt, when
> enabling ASPM for RTL8106e. The patch #1 is used to enable ASPM if
> it is possible. And the patch #2 is used to modify the entrance latencies
> of L0 and L1.
>
> Hayes Wang (2):
> Revert "r8169: avoid link-up interrupt issue on RTL8106e if user
> enables ASPM"
> r8169: change the L0/L1 entrance latencies for RTL8106e
>
> [...]
Here is the summary with links:
- [net-next,1/2] Revert "r8169: avoid link-up interrupt issue on RTL8106e if user enables ASPM"
https://git.kernel.org/netdev/net/c/2115d3d48265
- [net-next,2/2] r8169: change the L0/L1 entrance latencies for RTL8106e
https://git.kernel.org/netdev/net/c/9c4018648814
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 6+ messages in thread