The Lantech 8330-262D-E module is 2500base-X capable, but it reports the
nominal bitrate as 2500MBd instead of 3125MBd. Add a quirk for the
module.
The following in an EEPROM dump of such a SFP with the serial number
redacted:
00: 03 04 07 00 00 00 01 20 40 0c 05 01 19 00 00 00 ???...? @????...
10: 1e 0f 00 00 4c 61 6e 74 65 63 68 20 20 20 20 20 ??..Lantech
20: 20 20 20 20 00 00 00 00 38 33 33 30 2d 32 36 32 ....8330-262
30: 44 2d 45 20 20 20 20 20 56 31 2e 30 03 52 00 cb D-E V1.0?R.?
40: 00 1a 00 00 46 43 XX XX XX XX XX XX XX XX XX XX .?..FCXXXXXXXXXX
50: 20 20 20 20 32 32 30 32 31 34 20 20 68 b0 01 98 220214 h???
60: 45 58 54 52 45 4d 45 4c 59 20 43 4f 4d 50 41 54 EXTREMELY COMPAT
70: 49 42 4c 45 20 20 20 20 20 20 20 20 20 20 20 20 IBLE
Signed-off-by: Michael Walle <[email protected]>
---
drivers/net/phy/sfp-bus.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index c1512c9925a6..15aa5ac1ff49 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -74,6 +74,12 @@ static const struct sfp_quirk sfp_quirks[] = {
.vendor = "HUAWEI",
.part = "MA5671A",
.modes = sfp_quirk_2500basex,
+ }, {
+ // Lantech 8330-262D-E can operate at 2500base-X, but
+ // incorrectly report 2500MBd NRZ in their EEPROM
+ .vendor = "Lantech",
+ .part = "8330-262D-E",
+ .modes = sfp_quirk_2500basex,
}, {
.vendor = "UBNT",
.part = "UF-INSTANT",
--
2.30.2
Am 2022-03-15 06:07, schrieb Jakub Kicinski:
> On Sat, 12 Mar 2022 21:50:14 +0100 Michael Walle wrote:
>> The Lantech 8330-262D-E module is 2500base-X capable, but it reports
>> the
>> nominal bitrate as 2500MBd instead of 3125MBd. Add a quirk for the
>> module.
>>
>> The following in an EEPROM dump of such a SFP with the serial number
>> redacted:
>>
>> 00: 03 04 07 00 00 00 01 20 40 0c 05 01 19 00 00 00 ???...?
>> @????...
>> 10: 1e 0f 00 00 4c 61 6e 74 65 63 68 20 20 20 20 20 ??..Lantech
>> 20: 20 20 20 20 00 00 00 00 38 33 33 30 2d 32 36 32
>> ....8330-262
>> 30: 44 2d 45 20 20 20 20 20 56 31 2e 30 03 52 00 cb D-E
>> V1.0?R.?
>> 40: 00 1a 00 00 46 43 XX XX XX XX XX XX XX XX XX XX
>> .?..FCXXXXXXXXXX
>> 50: 20 20 20 20 32 32 30 32 31 34 20 20 68 b0 01 98 220214
>> h???
>> 60: 45 58 54 52 45 4d 45 4c 59 20 43 4f 4d 50 41 54 EXTREMELY
>> COMPAT
>> 70: 49 42 4c 45 20 20 20 20 20 20 20 20 20 20 20 20 IBLE
>
> Any idea what the "Extremely Compatible" is referring to? :-D
Haha, I smirked on that, too. Anything between 60 and 7f
is vendor specific. So.. good for a laugh?
>> Signed-off-by: Michael Walle <[email protected]>
>
> A quirk like this seems safe to apply to net and 5.17, still.
> Would you prefer that or net-next as marked?
Personally, I don't have any preference because the board
is just in the process of being upstreamed. Just pick one ;)
I'd say net-next because 5.17 development is almost at the
end.
-michael
Hello:
This patch was applied to netdev/net-next.git (master)
by Paolo Abeni <[email protected]>:
On Sat, 12 Mar 2022 21:50:14 +0100 you wrote:
> The Lantech 8330-262D-E module is 2500base-X capable, but it reports the
> nominal bitrate as 2500MBd instead of 3125MBd. Add a quirk for the
> module.
>
> The following in an EEPROM dump of such a SFP with the serial number
> redacted:
>
> [...]
Here is the summary with links:
- [net-next] net: sfp: add 2500base-X quirk for Lantech SFP module
https://git.kernel.org/netdev/net-next/c/00eec9fe4f3b
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
On Sat, 12 Mar 2022 21:50:14 +0100 Michael Walle wrote:
> The Lantech 8330-262D-E module is 2500base-X capable, but it reports the
> nominal bitrate as 2500MBd instead of 3125MBd. Add a quirk for the
> module.
>
> The following in an EEPROM dump of such a SFP with the serial number
> redacted:
>
> 00: 03 04 07 00 00 00 01 20 40 0c 05 01 19 00 00 00 ???...? @????...
> 10: 1e 0f 00 00 4c 61 6e 74 65 63 68 20 20 20 20 20 ??..Lantech
> 20: 20 20 20 20 00 00 00 00 38 33 33 30 2d 32 36 32 ....8330-262
> 30: 44 2d 45 20 20 20 20 20 56 31 2e 30 03 52 00 cb D-E V1.0?R.?
> 40: 00 1a 00 00 46 43 XX XX XX XX XX XX XX XX XX XX .?..FCXXXXXXXXXX
> 50: 20 20 20 20 32 32 30 32 31 34 20 20 68 b0 01 98 220214 h???
> 60: 45 58 54 52 45 4d 45 4c 59 20 43 4f 4d 50 41 54 EXTREMELY COMPAT
> 70: 49 42 4c 45 20 20 20 20 20 20 20 20 20 20 20 20 IBLE
Any idea what the "Extremely Compatible" is referring to? :-D
> Signed-off-by: Michael Walle <[email protected]>
A quirk like this seems safe to apply to net and 5.17, still.
Would you prefer that or net-next as marked?