#openwrt-devel on 2022-06-26 — irc logs at oftc.irclog.whitequark.org

2022-04-23 15:03 nbd changed the topic of #openwrt-devel to: Forum: https://forum.openwrt.org/ | Wiki: http://openwrt.org/ | Release: https://downloads.openwrt.org/releases/21.02.3/ | Notes: https://openwrt.org/releases/21.02/notes-21.02.3 | Logs: https://oftc.irclog.whitequark.org/openwrt-devel

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00:52 <owrt-snap-builds> Build [#584](https://buildbot.openwrt.org/master/images/#builders/56/builds/584) of `kirkwood/generic` completed successfully.

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11:19 <robimarko> This QCA piece of sh*t ethernet driver is just annoying me now

11:20 <robimarko> They did not implement any kind of offloading, not even checksum or NAPI GRO

11:20 <robimarko> So, it was miracle it could do any kind of reasonable speeds

11:20 <T-Bone> :P

11:20 <robimarko> NAPI GRO was easy to implement, but they left out all of the RX/TX descriptor details from the driver

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11:21 <robimarko> They are faking netdevs for each switch port by using rx/tx "preheaders" in the packets to set everything

11:21 <robimarko> And they gave up on EDMA v1 which is used in IPQ807x and IPQ60xx

11:22 <robimarko> Just moved on to EDMA v2 in which they implemented RX and TX checksum, GRO, TSO and scatter offloading

11:23 <robimarko> But the v1 looks like somewhere between EDMA from IPQ40xx and v2

11:23 <robimarko> Tried sending it packets with broken checksum, but cannot find the bit for invalid checksum

11:24 <robimarko> They basically want to force utilizing NSS offloading

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12:28 <Borromini> robimarko: any chance yet you got to look at the QCA8081 again in the RB5009UG? 👼

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13:34 <robimarko> Borromini: No, dont have anything 2.5G to test it on

13:34 <robimarko> I have a new 10G NIC on order

13:34 <robimarko> Worked recently on the bootloader, but there is something weird going on

13:34 <robimarko> U-boot sometimes corrupts the UBI volume

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14:25 <Borromini> :)

14:25 <Borromini> ok :(

14:25 <Borromini> which 10G NIC did you end up getting?

14:26 <Borromini> i remember svanheule getting a second hand SFP+ one but forgot which.

14:26 <robimarko> AQC107 based one

14:26 <robimarko> Its copper

14:27 <Borromini> ok

14:28 <svanheule> Borromini: I got some X520 cards, but I also have the AQC107 cards robimarko is buying :)

14:28 <Borromini> ok =)

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14:59 <mrnuke> HI, can I get RW wiki access?

15:15 <PaulFertser> mrnuke: yes, just send me your desired wiki nick and e-mail.

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15:27 <mrnuke> PaulFertser: thanks! sent over private message

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17:50 <mrnuke> hurricos: I updated the packet parser to give out an overlook of the final device config: https://github.com/Hurricos/realtek-poe/blob/mrnuke-devel/util/poem.py

17:51 <mrnuke> It's really bad pyhon code, but I think the results are easier to parse with an eyeba;; MK-1: https://paste.debian.net/1245305/

17:54 <mrnuke> hurricos: I plan to make it so that you can just pass a tty ("/dev/ttyUSB0") and it can monitor the serial port directly

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18:23 <swalker> updated openwrt/upstream, https://sdwalker.github.io/uscan/index.html

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18:32 <mrnuke> I'm looking for a way to get the board name from C code. Is 'ubus call system board' the correct or preffered way to do so?

18:36 <Habbie> mrnuke, i don't have answers, but i'll tell you two things I know - (1) you can do ubus calls without system() or similar (2) there's also /etc/board.json

18:40 <mrnuke> Then the laziest thing is to do a read() on /sys/firmware/devicetree/base/compatible :)

18:42 <Habbie> on the one system i tried, that's way less interesting than board.json or ubus call system board

18:43 <Habbie> but also, the output from base/compatible is not in the other two

18:46 <mrnuke> If I can avoid having to parse json, then why not? No point adding a json parser to a 700 line package when all you need is the board bame :D

18:46 <Habbie> sure

18:46 <Habbie> but the json parser is already on your flash ;)

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18:49 <mrnuke> Which one is less lines of code? Probably open(); read(); strdup(); close() :)

18:49 <Habbie> of course :)

18:51 <mrnuke> ubus and lobmsg is cool and all, but I find the code much less readable: https://github.com/Hurricos/realtek-poe/commit/bcf92369f810e12b363e448a5d16afb390e5bd75

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