81 lines
2.9 KiB
Diff
81 lines
2.9 KiB
Diff
From 2ab19de62d67e403105ba860971e5ff0d511ad15 Mon Sep 17 00:00:00 2001
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From: Heiner Kallweit <hkallweit1@gmail.com>
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Date: Mon, 6 Mar 2023 22:28:06 +0100
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Subject: [PATCH] r8169: remove ASPM restrictions now that ASPM is disabled
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during NAPI poll
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Now that ASPM is disabled during NAPI poll, we can remove all ASPM
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restrictions. This allows for higher power savings if the network
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isn't fully loaded.
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Reviewed-by: Simon Horman <simon.horman@corigine.com>
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Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
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Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
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Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/realtek/r8169_main.c | 27 +----------------------
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1 file changed, 1 insertion(+), 26 deletions(-)
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diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
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index 2897b9bf29af67..6563e4c6a13606 100644
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--- a/drivers/net/ethernet/realtek/r8169_main.c
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+++ b/drivers/net/ethernet/realtek/r8169_main.c
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@@ -620,7 +620,6 @@ struct rtl8169_private {
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int cfg9346_usage_count;
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unsigned supports_gmii:1;
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- unsigned aspm_manageable:1;
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dma_addr_t counters_phys_addr;
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struct rtl8169_counters *counters;
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struct rtl8169_tc_offsets tc_offset;
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@@ -2744,8 +2743,7 @@ static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
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if (tp->mac_version < RTL_GIGA_MAC_VER_32)
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return;
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- /* Don't enable ASPM in the chip if OS can't control ASPM */
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- if (enable && tp->aspm_manageable) {
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+ if (enable) {
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rtl_mod_config5(tp, 0, ASPM_en);
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rtl_mod_config2(tp, 0, ClkReqEn);
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@@ -5221,16 +5219,6 @@ static void rtl_init_mac_address(struct rtl8169_private *tp)
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rtl_rar_set(tp, mac_addr);
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}
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-/* register is set if system vendor successfully tested ASPM 1.2 */
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-static bool rtl_aspm_is_safe(struct rtl8169_private *tp)
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-{
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- if (tp->mac_version >= RTL_GIGA_MAC_VER_61 &&
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- r8168_mac_ocp_read(tp, 0xc0b2) & 0xf)
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- return true;
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-
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- return false;
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-}
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-
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static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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struct rtl8169_private *tp;
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@@ -5302,19 +5290,6 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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tp->mac_version = chipset;
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- /* Disable ASPM L1 as that cause random device stop working
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- * problems as well as full system hangs for some PCIe devices users.
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- * Chips from RTL8168h partially have issues with L1.2, but seem
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- * to work fine with L1 and L1.1.
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- */
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- if (rtl_aspm_is_safe(tp))
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- rc = 0;
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- else if (tp->mac_version >= RTL_GIGA_MAC_VER_46)
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- rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L1_2);
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- else
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- rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L1);
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- tp->aspm_manageable = !rc;
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-
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tp->dash_type = rtl_check_dash(tp);
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tp->cp_cmd = RTL_R16(tp, CPlusCmd) & CPCMD_MASK;
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