| jassm | hello | 00:09 |
|---|---|---|
| jassm | Daddy finger | 00:10 |
| minimal | holmanb: starting to wonder if it was a bad idea for me to do the RHEL/Fedora and FreeBSD changes in my PR, wondering whether to remove them and just stick with the other Alpine/Debian/Ubuntu related changes | 15:47 |
| meena | minimal: +1 from me; I'll happily put the FreeBSD back in instead of you | 15:57 |
| meena | somebody here will have to explain to me net.get_ib_interface_hwaddr() and net.get_ib_interface_hwaddr() | 22:20 |
| meena | Those to functions feel… intertwined in the wrongest possible way | 22:21 |
| meena | Also, I need to make them understand duplicate mac addresses… | 22:21 |
| meena | What, exactly, is /sys/net/<blah>/type and where is that documented? | 22:23 |
| falcojr | /sys/class/net is part of sysfs. https://man7.org/linux/man-pages/man5/sysfs.5.html | 22:25 |
| falcojr | did you post the same function above? I see net.get_ib_interface_hwaddr() twice (or can't tell the difference :P ) | 22:25 |
| meena | falcojr: i… did | 22:33 |
| meena | net.get_ib_hwaddrs_by_interface() | 22:33 |
| meena | calls for name, _, _, _ in get_interfaces(): and then gets upset if there's duplicate nics | 22:34 |
| meena | but it also calls ib_mac = get_ib_interface_hwaddr(name, False) | 22:34 |
| meena | which calls mac = get_interface_mac(ifname) | 22:34 |
| meena | and i just don't understand why we're not calling get_interfaces_by_mac() to begin with!? | 22:34 |
| falcojr | I'm guessing that infiniband devices present differently, so they need a different code path | 22:38 |
| meena | falcojr: whether they are present or not is checked by name, which get_interfaces_by_mac() also returns, IIRC | 22:42 |
| meena | basically, this is just very inefficient from an algorithmic point of view, given that these two functions very often interact. | 22:43 |
| meena | either way, I need to find/fake infiniband hardware, to find out what the FreeBSD equivalent of /sys/class/net/<net-dev>/type is | 22:44 |
| meena | or I'll be eating my words about how cool BSD's ifconfig(8) is… | 22:45 |
| falcojr | I mean in a different location in sysfs, so they won't get returned in the normal get_interfaces_by_mac() call. Just guessing though...haven't looked deep enough yet | 22:46 |
| minimal | infiniband devices tend to be able to operate in either ethernet or IB mode. I think IB MAC addresses are longer than ethernet MAC addresses | 22:48 |
| meena | hrm, we have laggtype ethernet / infiniband | 22:50 |
| minimal | meena: What:/sys/class/net/<iface>/type | 22:56 |
| minimal | Date:April 2005 | 22:56 |
| minimal | KernelVersion:2.6.12 | 22:56 |
| minimal | Contact:netdev@vger.kernel.org | 22:56 |
| minimal | Description: | 22:56 |
| minimal | Indicates the interface protocol type as a decimal value. See | 22:56 |
| minimal | include/uapi/linux/if_arp.h for all possible values. | 22:56 |
| meena | i'm guessing anything with media-type 10GBase will probably be infiniband, eh? | 22:57 |
| minimal | that include file shows infiniband as 32 and ethernet as 1 | 22:57 |
| meena | or is there regular ethernet that can do 40G, or 100G? | 22:57 |
| meena | meena: and that's it? | 22:58 |
| minimal | meena: did you mean to ask yourself or to ask me? lol | 22:59 |
| meena | minimal: it's time to ask: why is meena not in bed yet | 22:59 |
| minimal | it's time for me to ask you if you asked yourself that yet? | 23:00 |
| minimal | as for those defs, there's plenty of other types defined there, e.g. PPP, AX25, Appletalk, etc | 23:00 |
| meena | minimal: how many of your cloud-servers speak Appletalk, tho? | 23:02 |
| minimal | it's not a cloud file though, it's a Linux kernel header file | 23:04 |
| minimal | heck there's Econet defined there which I don't think anyone has used since about 1986-ish lol | 23:06 |
| meena | every two weeks or so, I feel like I've started this all wrong, and should've began by adding libxo support to ifconfig | 23:07 |
| meena | i… might just do that, tho that still won't give me access to infiniband hardware… hrm… | 23:08 |
| meena | anyway, sleep time, I can read code in bed, too | 23:08 |
| holmanb | minimal: +1 if that's what you want to do | 23:16 |
| holmanb | meena: 10G, 40G, 100G, 400G ethernet also exist | 23:19 |
| minimal | holmanb: well FreeBSD seems to have different behaviour/layouts for <14.0 and 14.0+, and on the RHEL/Fedora size there seems to be no clear information on how to delete system CAs | 23:20 |
| minimal | holmanb: you forgot 2.5G ;-) | 23:20 |
| holmanb | meena: If you're looking for IB hardware, you should be able to find it pretty cheap secondhand. ConnectX 4 and 5 is probably not hard to find, it might be too early for ConnectX 6 on the secondary market | 23:20 |
| holmanb | minimal: I don't think I've ever bothered with 2.5G, but I've tested gear with all the other numbers I mentioned ;) | 23:21 |
| minimal | old IB tends to be cheap if you directly connect machine to machine, IB switches tend to be still relatively expensive | 23:21 |
| holmanb | if the card(s) you get are in ethernet mode, the tool to reflash the cards is called mstflint | 23:24 |
| holmanb | at least on mellanox anyways | 23:26 |
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