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Message-ID: <f344abc6-f164-46d9-b9d1-405709b77bba@gmail.com>
Date: Wed, 31 Jan 2024 21:40:48 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Joe Salmeri <jmscdba@...il.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>, tiwai@...e.com
Subject: Re: Kernel Module r8169 and the Realtek 8126 PCIe 5 G/bps WIRED
ethernet adapter
On 31.01.2024 17:14, Joe Salmeri wrote:
> On 1/30/24 14:59, Heiner Kallweit wrote:
>> On 30.01.2024 17:34, Joe Salmeri wrote:
>>> On 1/29/24 17:19, Heiner Kallweit wrote:
>>>> On 29.01.2024 19:31, Joe Salmeri wrote:
>>>>> Hi,
>>>>>
>>>>> I recently built a new PC using the Asus z790 Maximus Formula motherboard.
>>>>>
>>>>> The z790 Formula uses the Realtek 8126 PCIe 5 G/bps WIRED ethernet adapter.
>>>>>
>>>>> I am using openSUSE Tumbleweed build 20231228 with kernel 6.6.7-1
>>>>>
>>>>> There does not seem to be a driver for the Realtek 8126.
>>>>>
>>>>> Here is the device info from "lspci | grep -i net"
>>>>>
>>>>> 04:00.0 Network controller: Intel Corporation Device 272b (rev 1a)
>>>>> 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. Device 8126 (rev 01)
>>>>>
>>>>> So it is detects the 8126 just fine it just doesn't have a driver for it.
>>>>>
>>>>> I checked realtek.com and found
>>>>>
>>>>> https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-pci-express-software
>>>>>
>>>>> The download link still says 8125 ( and kernel 6.4 ), but I compiled the source and since I have Secure boot enabled, I signed the
>>>>> resulting module file.
>>>>>
>>>>> The driver loads successfully and I now have wired networking and it has worked flawlessly for the last 2 months.
>>>>>
>>>>> I submitted a bug in Tumbleweed requesting support for the Realtek 8126 be added and was informed that the r8169 kernel module
>>>>> is what is used to support the older Realtek 8125 device.
>>>>>
>>>>> Since the drivers from Realtek seem to support both the r8125 and my newer r8126, the Tumbleweed support prepared a test
>>>>> kernel 6.6.7-1 for me where they added the PCI entry for the r8126 and I installed and tested it out.
>>>>>
>>>>> Although it does now load the r8169 module with their test kernel, the r8126 device still does not work.
>>>>>
>>>>> The only 2 lines that reference the r8169 in the dmesg log are these 2 lines:
>>>>>
>>>>> [ 3.237151] r8169 0000:05:00.0: enabling device (0000 -> 0003)
>>>>> [ 3.237289] r8169 0000:05:00.0: error -ENODEV: unknown chip XID 649, contact r8169 maintainers (see MAINTAINERS file)
>>>>>
>>>>> I reported the results of the test to Tumbleweed support and they said that additional tweaks will be needed for the r8169
>>>>> module to support the r8126 wired network adapter and thatn I should request to you to add support.
>>>>>
>>>>> The details of the openSUSE bug report on the issue can be found here:
>>>>>
>>>>> https://bugzilla.suse.com/show_bug.cgi?id=1217417
>>>>>
>>>>> Could we please get support added for the r8126 - Realtek 8126 PCIe 5 G/bps WIRED ethernet adapter added to the kernel ?
>>>>>
>>>> Thanks for the report. Actually it's not a bug report but a feature request.
>>>> Realtek provides no information about new chip versions and no data sheets, therefore the only
>>>> source of information is the r8125 vendor driver. Each chip requires a lot of version-specific
>>>> handling, therefore the first steps you described go in the right direction, but are by far not
>>>> sufficient. Patch below applies on linux-next, please test whether it works for you, and report back.
>>>>
>>>> Disclaimer:
>>>> r8125 references a firmware file that hasn't been provided to linux-firmware by Realtek yet.
>>>> Typically the firmware files tune PHY parameters to deal with compatibility issues.
>>>> In addition r8125 includes a lot of PHY tuning for RTL8126A.
>>>> Depending on cabling, link partner etc. the patch may work for you, or you may experience
>>>> link instability or worst case no link at all.
>>>>
>>>> Maybe RTL8126a also has a new integrated PHY version that isn't supported yet.
>>>> In this case the driver will complain with the following message and I'd need the PHY ID.
>>>> "no dedicated PHY driver found for PHY ID xxx"
>>> Thanks very much for your quick response.
>>>
>>> I forward your patch to the openSUSE people I have been working and they prepared a new test kernel 6.7.2 with the patches for for me to test.
>>>
>>> I just installed the test kernel provided with the patches but just as you expected it complains about no dedicated PHY driver found.
>>>
>>> Here is the dmesg | grep 8169 output with the information you requested
>>>
>>> [ 3.176753] r8169 0000:05:00.0: enabling device (0000 -> 0003)
>>> [ 3.184887] r8169 0000:05:00.0: no dedicated PHY driver found for PHY ID 0x001cc862, maybe realtek.ko needs to be added to initramfs?
>>> [ 3.184912] r8169: probe of 0000:05:00.0 failed with error -49
>>>
>>> Thank you for your efforts.
>>>
>>> Please let me know if you need any further details.
>>>
>>>> ---
>>>> drivers/net/ethernet/realtek/r8169.h | 1 +
>>>> drivers/net/ethernet/realtek/r8169_main.c | 91 +++++++++++++++----
>>>> .../net/ethernet/realtek/r8169_phy_config.c | 1 +
>>>> 3 files changed, 77 insertions(+), 16 deletions(-)
>>>>
>>>> diff --git a/drivers/net/ethernet/realtek/r8169.h b/drivers/net/ethernet/realtek/r8169.h
>>>> index 81567fcf3..c921456ed 100644
>>>> --- a/drivers/net/ethernet/realtek/r8169.h
>>>> +++ b/drivers/net/ethernet/realtek/r8169.h
>>>> @@ -68,6 +68,7 @@ enum mac_version {
>>>> /* support for RTL_GIGA_MAC_VER_60 has been removed */
>>>> RTL_GIGA_MAC_VER_61,
>>>> RTL_GIGA_MAC_VER_63,
>>>> + RTL_GIGA_MAC_VER_65,
>>>> RTL_GIGA_MAC_NONE
>>>> };
>>>> diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
>>>> index e0abdbcfa..ebf7a3b13 100644
>>>> --- a/drivers/net/ethernet/realtek/r8169_main.c
>>>> +++ b/drivers/net/ethernet/realtek/r8169_main.c
>>>> @@ -55,6 +55,7 @@
>>>> #define FIRMWARE_8107E_2 "rtl_nic/rtl8107e-2.fw"
>>>> #define FIRMWARE_8125A_3 "rtl_nic/rtl8125a-3.fw"
>>>> #define FIRMWARE_8125B_2 "rtl_nic/rtl8125b-2.fw"
>>>> +#define FIRMWARE_8126A_2 "rtl_nic/rtl8126a-2.fw"
>>>> #define TX_DMA_BURST 7 /* Maximum PCI burst, '7' is unlimited */
>>>> #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
>>>> @@ -136,6 +137,7 @@ static const struct {
>>>> [RTL_GIGA_MAC_VER_61] = {"RTL8125A", FIRMWARE_8125A_3},
>>>> /* reserve 62 for CFG_METHOD_4 in the vendor driver */
>>>> [RTL_GIGA_MAC_VER_63] = {"RTL8125B", FIRMWARE_8125B_2},
>>>> + [RTL_GIGA_MAC_VER_65] = {"RTL8126A", FIRMWARE_8126A_2},
>>>> };
>>>> static const struct pci_device_id rtl8169_pci_tbl[] = {
>>>> @@ -158,6 +160,7 @@ static const struct pci_device_id rtl8169_pci_tbl[] = {
>>>> { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024 },
>>>> { 0x0001, 0x8168, PCI_ANY_ID, 0x2410 },
>>>> { PCI_VDEVICE(REALTEK, 0x8125) },
>>>> + { PCI_VDEVICE(REALTEK, 0x8126) },
>>>> { PCI_VDEVICE(REALTEK, 0x3000) },
>>>> {}
>>>> };
>>>> @@ -327,8 +330,12 @@ enum rtl8168_registers {
>>>> };
>>>> enum rtl8125_registers {
>>>> + INT_CFG0_8125 = 0x34,
>>>> +#define INT_CFG0_ENABLE_8125 BIT(0)
>>>> +#define INT_CFG0_CLKREQEN BIT(3)
>>>> IntrMask_8125 = 0x38,
>>>> IntrStatus_8125 = 0x3c,
>>>> + INT_CFG1_8125 = 0x7a,
>>>> TxPoll_8125 = 0x90,
>>>> MAC0_BKP = 0x19e0,
>>>> EEE_TXIDLE_TIMER_8125 = 0x6048,
>>>> @@ -1139,7 +1146,7 @@ static void rtl_writephy(struct rtl8169_private *tp, int location, int val)
>>>> case RTL_GIGA_MAC_VER_31:
>>>> r8168dp_2_mdio_write(tp, location, val);
>>>> break;
>>>> - case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_65:
>>>> r8168g_mdio_write(tp, location, val);
>>>> break;
>>>> default:
>>>> @@ -1154,7 +1161,7 @@ static int rtl_readphy(struct rtl8169_private *tp, int location)
>>>> case RTL_GIGA_MAC_VER_28:
>>>> case RTL_GIGA_MAC_VER_31:
>>>> return r8168dp_2_mdio_read(tp, location);
>>>> - case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_65:
>>>> return r8168g_mdio_read(tp, location);
>>>> default:
>>>> return r8169_mdio_read(tp, location);
>>>> @@ -1507,7 +1514,7 @@ static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
>>>> break;
>>>> case RTL_GIGA_MAC_VER_34:
>>>> case RTL_GIGA_MAC_VER_37:
>>>> - case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_65:
>>>> if (wolopts)
>>>> rtl_mod_config2(tp, 0, PME_SIGNAL);
>>>> else
>>>> @@ -2073,6 +2080,9 @@ static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
>>>> u16 val;
>>>> enum mac_version ver;
>>>> } mac_info[] = {
>>>> + /* 8126A family. */
>>>> + { 0x7cf, 0x649, RTL_GIGA_MAC_VER_65 },
>>>> +
>>>> /* 8125B family. */
>>>> { 0x7cf, 0x641, RTL_GIGA_MAC_VER_63 },
>>>> @@ -2343,6 +2353,7 @@ static void rtl_init_rxcfg(struct rtl8169_private *tp)
>>>> RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_DMA_BURST);
>>>> break;
>>>> case RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_65:
>>>> RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_DMA_BURST |
>>>> RX_PAUSE_SLOT_ON);
>>>> break;
>>>> @@ -2772,7 +2783,7 @@ static void rtl_enable_exit_l1(struct rtl8169_private *tp)
>>>> case RTL_GIGA_MAC_VER_37 ... RTL_GIGA_MAC_VER_38:
>>>> rtl_eri_set_bits(tp, 0xd4, 0x0c00);
>>>> break;
>>>> - case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_65:
>>>> r8168_mac_ocp_modify(tp, 0xc0ac, 0, 0x1f80);
>>>> break;
>>>> default:
>>>> @@ -2786,7 +2797,7 @@ static void rtl_disable_exit_l1(struct rtl8169_private *tp)
>>>> case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
>>>> rtl_eri_clear_bits(tp, 0xd4, 0x1f00);
>>>> break;
>>>> - case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_65:
>>>> r8168_mac_ocp_modify(tp, 0xc0ac, 0x1f80, 0);
>>>> break;
>>>> default:
>>>> @@ -2796,6 +2807,8 @@ static void rtl_disable_exit_l1(struct rtl8169_private *tp)
>>>> static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
>>>> {
>>>> + u8 val8;
>>>> +
>>>> if (tp->mac_version < RTL_GIGA_MAC_VER_32)
>>>> return;
>>>> @@ -2809,11 +2822,19 @@ static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
>>>> return;
>>>> rtl_mod_config5(tp, 0, ASPM_en);
>>>> - rtl_mod_config2(tp, 0, ClkReqEn);
>>>> + switch (tp->mac_version) {
>>>> + case RTL_GIGA_MAC_VER_65:
>>>> + val8 = RTL_R8(tp, INT_CFG0_8125) | INT_CFG0_CLKREQEN;
>>>> + RTL_W8(tp, INT_CFG0_8125, val8);
>>>> + break;
>>>> + default:
>>>> + rtl_mod_config2(tp, 0, ClkReqEn);
>>>> + break;
>>>> + }
>>>> switch (tp->mac_version) {
>>>> case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_48:
>>>> - case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_65:
>>>> /* reset ephy tx/rx disable timer */
>>>> r8168_mac_ocp_modify(tp, 0xe094, 0xff00, 0);
>>>> /* chip can trigger L1.2 */
>>>> @@ -2825,14 +2846,22 @@ static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
>>>> } else {
>>>> switch (tp->mac_version) {
>>>> case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_48:
>>>> - case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_65:
>>>> r8168_mac_ocp_modify(tp, 0xe092, 0x00ff, 0);
>>>> break;
>>>> default:
>>>> break;
>>>> }
>>>> - rtl_mod_config2(tp, ClkReqEn, 0);
>>>> + switch (tp->mac_version) {
>>>> + case RTL_GIGA_MAC_VER_65:
>>>> + val8 = RTL_R8(tp, INT_CFG0_8125) & ~INT_CFG0_CLKREQEN;
>>>> + RTL_W8(tp, INT_CFG0_8125, val8);
>>>> + break;
>>>> + default:
>>>> + rtl_mod_config2(tp, ClkReqEn, 0);
>>>> + break;
>>>> + }
>>>> rtl_mod_config5(tp, ASPM_en, 0);
>>>> }
>>>> }
>>>> @@ -3545,10 +3574,15 @@ static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
>>>> /* disable new tx descriptor format */
>>>> r8168_mac_ocp_modify(tp, 0xeb58, 0x0001, 0x0000);
>>>> - if (tp->mac_version == RTL_GIGA_MAC_VER_63)
>>>> + if (tp->mac_version == RTL_GIGA_MAC_VER_65)
>>>> + RTL_W8(tp, 0xD8, RTL_R8(tp, 0xD8) & ~0x02);
>>>> +
>>>> + if (tp->mac_version == RTL_GIGA_MAC_VER_65)
>>>> + r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0400);
>>>> + else if (tp->mac_version == RTL_GIGA_MAC_VER_63)
>>>> r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0200);
>>>> else
>>>> - r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0400);
>>>> + r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0300);
>>>> if (tp->mac_version == RTL_GIGA_MAC_VER_63)
>>>> r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0000);
>>>> @@ -3561,6 +3595,10 @@ static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
>>>> r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0030);
>>>> r8168_mac_ocp_modify(tp, 0xe040, 0x1000, 0x0000);
>>>> r8168_mac_ocp_modify(tp, 0xea1c, 0x0003, 0x0001);
>>>> + if (tp->mac_version == RTL_GIGA_MAC_VER_65)
>>>> + r8168_mac_ocp_modify(tp, 0xea1c, 0x0300, 0x0000);
>>>> + else
>>>> + r8168_mac_ocp_modify(tp, 0xea1c, 0x0004, 0x0000);
>>>> r8168_mac_ocp_modify(tp, 0xe0c0, 0x4f0f, 0x4403);
>>>> r8168_mac_ocp_modify(tp, 0xe052, 0x0080, 0x0068);
>>>> r8168_mac_ocp_modify(tp, 0xd430, 0x0fff, 0x047f);
>>>> @@ -3575,10 +3613,10 @@ static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
>>>> rtl_loop_wait_low(tp, &rtl_mac_ocp_e00e_cond, 1000, 10);
>>>> - if (tp->mac_version == RTL_GIGA_MAC_VER_63)
>>>> - rtl8125b_config_eee_mac(tp);
>>>> - else
>>>> + if (tp->mac_version == RTL_GIGA_MAC_VER_61)
>>>> rtl8125a_config_eee_mac(tp);
>>>> + else
>>>> + rtl8125b_config_eee_mac(tp);
>>>> rtl_disable_rxdvgate(tp);
>>>> }
>>>> @@ -3622,6 +3660,12 @@ static void rtl_hw_start_8125b(struct rtl8169_private *tp)
>>>> rtl_hw_start_8125_common(tp);
>>>> }
>>>> +static void rtl_hw_start_8126a(struct rtl8169_private *tp)
>>>> +{
>>>> + rtl_set_def_aspm_entry_latency(tp);
>>>> + rtl_hw_start_8125_common(tp);
>>>> +}
>>>> +
>>>> static void rtl_hw_config(struct rtl8169_private *tp)
>>>> {
>>>> static const rtl_generic_fct hw_configs[] = {
>>>> @@ -3664,6 +3708,7 @@ static void rtl_hw_config(struct rtl8169_private *tp)
>>>> [RTL_GIGA_MAC_VER_53] = rtl_hw_start_8117,
>>>> [RTL_GIGA_MAC_VER_61] = rtl_hw_start_8125a_2,
>>>> [RTL_GIGA_MAC_VER_63] = rtl_hw_start_8125b,
>>>> + [RTL_GIGA_MAC_VER_65] = rtl_hw_start_8126a,
>>>> };
>>>> if (hw_configs[tp->mac_version])
>>>> @@ -3674,9 +3719,23 @@ static void rtl_hw_start_8125(struct rtl8169_private *tp)
>>>> {
>>>> int i;
>>>> + RTL_W8(tp, INT_CFG0_8125, 0x00);
>>>> +
>>>> /* disable interrupt coalescing */
>>>> - for (i = 0xa00; i < 0xb00; i += 4)
>>>> - RTL_W32(tp, i, 0);
>>>> + switch (tp->mac_version) {
>>>> + case RTL_GIGA_MAC_VER_61:
>>>> + for (i = 0xa00; i < 0xb00; i += 4)
>>>> + RTL_W32(tp, i, 0);
>>>> + break;
>>>> + case RTL_GIGA_MAC_VER_63:
>>>> + case RTL_GIGA_MAC_VER_65:
>>>> + for (i = 0xa00; i < 0xa80; i += 4)
>>>> + RTL_W32(tp, i, 0);
>>>> + RTL_W16(tp, INT_CFG1_8125, 0x0000);
>>>> + break;
>>>> + default:
>>>> + break;
>>>> + }
>>>> rtl_hw_config(tp);
>>>> }
>>>> diff --git a/drivers/net/ethernet/realtek/r8169_phy_config.c b/drivers/net/ethernet/realtek/r8169_phy_config.c
>>>> index b50f16786..badf78f81 100644
>>>> --- a/drivers/net/ethernet/realtek/r8169_phy_config.c
>>>> +++ b/drivers/net/ethernet/realtek/r8169_phy_config.c
>>>> @@ -1152,6 +1152,7 @@ void r8169_hw_phy_config(struct rtl8169_private *tp, struct phy_device *phydev,
>>>> [RTL_GIGA_MAC_VER_53] = rtl8117_hw_phy_config,
>>>> [RTL_GIGA_MAC_VER_61] = rtl8125a_2_hw_phy_config,
>>>> [RTL_GIGA_MAC_VER_63] = rtl8125b_hw_phy_config,
>>>> + [RTL_GIGA_MAC_VER_65] = NULL,
>>>> };
>>>> if (phy_configs[ver])
>>>
>> The followoing adds support for the integrated PHY.
>> Please apply it on-top and re-test.
>>
>> ---
>> drivers/net/phy/realtek.c | 10 ++++++++++
>> 1 file changed, 10 insertions(+)
>>
>> diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
>> index 894172a3e..132784321 100644
>> --- a/drivers/net/phy/realtek.c
>> +++ b/drivers/net/phy/realtek.c
>> @@ -1047,6 +1047,16 @@ static struct phy_driver realtek_drvs[] = {
>> .resume = rtlgen_resume,
>> .read_page = rtl821x_read_page,
>> .write_page = rtl821x_write_page,
>> + }, {
>> + PHY_ID_MATCH_EXACT(0x001cc862),
>> + .name = "RTL8251B 5Gbps PHY",
>> + .get_features = rtl822x_get_features,
>> + .config_aneg = rtl822x_config_aneg,
>> + .read_status = rtl822x_read_status,
>> + .suspend = genphy_suspend,
>> + .resume = rtlgen_resume,
>> + .read_page = rtl821x_read_page,
>> + .write_page = rtl821x_write_page,
>> }, {
>> PHY_ID_MATCH_EXACT(0x001cc961),
>> .name = "RTL8366RB Gigabit Ethernet",
>
> Thank you !
>
> I forward your 2nd patch to the openSUSE people I have been working and they prepared a new test kernel 6.7.2 with both patches for for me to test.
>
> I just installed the test kernel provided with both patches.
>
> Here is the dmesg | grep 8169 output using this new test kernel
>
> [ 3.630222] r8169 0000:05:00.0: enabling device (0000 -> 0003)
> [ 3.632148] r8169 0000:05:00.0 eth0: RTL8126A, e8:9c:25:78:c9:bf, XID 649, IRQ 207
> [ 3.632150] r8169 0000:05:00.0 eth0: jumbo features [frames: 9194 bytes, tx checksumming: ko]
> [ 3.633218] r8169 0000:05:00.0 enp5s0: renamed from eth0
> [ 4.212381] r8169 0000:05:00.0: Direct firmware load for rtl_nic/rtl8126a-2.fw failed with error -2
> [ 4.212384] r8169 0000:05:00.0: Unable to load firmware rtl_nic/rtl8126a-2.fw (-2)
> [ 4.236119] RTL8251B 5Gbps PHY r8169-0-500:00: attached PHY driver (mii_bus:phy_addr=r8169-0-500:00, irq=MAC)
> [ 4.349625] r8169 0000:05:00.0 enp5s0: Link is Down
> [ 7.858055] r8169 0000:05:00.0 enp5s0: Link is Up - 1Gbps/Full - flow control rx/tx
>
> Although dmesg has these 2 error messages, I have network connectivity, ran a quick speed test and am getting the correct speeds.
>
Thanks for the feedback. The firmware-related errors are expected, Realtek didn't provide the
firmware file to linux-firmware yet. I contacted Realtek in this matter.
Based on the experimental patches I'll prepare support for RTL8126A, and it should show up
in kernel version 6.9.
> [ 4.212381] r8169 0000:05:00.0: Direct firmware load for rtl_nic/rtl8126a-2.fw failed with error -2
> [ 4.212384] r8169 0000:05:00.0: Unable to load firmware rtl_nic/rtl8126a-2.fw (-2)
>
> Here is the 'lsmod | grep 8169' results so you can see what is loaded
>
> r8169 114688 0 mdio_devres 12288 1 r8169 libphy 245760 3 r8169,mdio_devres,realtek I will continue to test and report back if there are any network issues.
>
Please do so. Thank you
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