Discussion minutes from IRC #hwe (2020/06/12):
 
 15:37:35 <tjaalton> khfeng: so, should the e1000e commits be rejected, 
according to your comment on the bug?
 15:39:18 <khfeng> tjaalton, depends on kentlin_office. If we care about the 
power consumption under s0ix, then probably should reject it
 15:40:02 <tjaalton> ok, I'll drop it from the list for now
 15:40:27 <kentlin_office> tjaalton, khfeng, what commit
 15:41:05 <khfeng> kentlin_office, the one the prevents vPro systems from 
entering s0ix
 15:42:10 <kentlin_office> khfeng, oh.. we care about S0ix...
 15:42:43 <kentlin_office> khfeng, the patch is submitted by whom?
 15:44:52 <khfeng> kentlin_office, dunno
 15:45:02 <-- chih (c...@1-34-63-143.hinet-ip.hinet.net) has quit (Ping 
timeout: 121 seconds)
 15:45:29 <kentlin_office> khfeng, from upstream?
 15:45:31 --> chih (c...@61-220-137-34.hinet-ip.hinet.net) has joined #hwe
 15:45:55 <khfeng> kentlin_office, yea
 15:45:59 <tjaalton> intel
 15:47:05 <kentlin_office> tjaalton, in latest Kernel? do you have but or git 
cold share with me? I want to write email to Intel contact why they send such 
commit...
 15:50:38 <tjaalton> shane: ^
 15:55:04 <tjaalton> kentlin_office: it's in linus's git tree now
 15:55:11 <shane> tjaalton: got it, have talked with kentlin_office
 15:55:51 <tjaalton> what's the verdict?
 15:56:02 <tjaalton> should I drop both
 16:06:53 <-- jeremysu (jerem...@61-220-137-37.hinet-ip.hinet.net) has quit 
(Ping timeout: 121 seconds)
 16:07:17 --> jeremysu (jerem...@61-220-137-37.hinet-ip.hinet.net) has joined 
#hwe
 16:08:06 <tjaalton> khfeng: I can't find your e1000e commit in the trees where 
it was supposed to be applied already.. do you know what happened?
 16:08:19 <tjaalton> not in focal at least
 16:09:28 <khfeng> tjaalton, "e1000e: Disable TSO for buffer overrun 
workaround" this one?
 16:09:34 <tjaalton> yes
 16:11:38 --> ethanhsieh_home (et...@1-171-165-81.dynamic-ip.hinet.net) has 
joined #hwe
 16:13:00 <tjaalton> perhaps I should ask the ones who applied it
 16:14:39 <tjaalton> it's in bionic at least
 16:14:46 <tjaalton> but not focal. probably a mistake
 16:14:54 <tjaalton> khfeng: so, nevermind :)
 16:15:12 <khfeng> Ok :)
 16:15:30 <-- ethanhsieh_home (et...@1-171-165-81.dynamic-ip.hinet.net) has 
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 16:20:42 <-> alextu is now known as alextu-meeting
 16:25:43 <tjaalton> vicamo: so, back to iommu.. I'm not really sure :D
 16:26:12 <vicamo> tjaalton: I saw you're merging "NAK: [PATCH 
0/2][SRU][B/E/F/U/OEM-OSP1-B/OEM-5.6] PCI: Avoid FLR for AMD Matisse/Starship 
HD Audio & USB 3.0"?
 16:26:40 --> hughchao_office (hughc...@1.general.hughchao.uk.vpn) has joined 
#hwe
 16:27:30 <tjaalton> vicamo: oh, that was a mistake.. already replied to the 
correct thread
 16:27:54 <vicamo> khfeng: are you interested in that power button issue? are 
holding a conf call
 16:28:04 <khfeng> vicamo, sure
 16:28:06 <vicamo> tjaalton: ok, thanks
 16:28:59 <-- hugh_chao (hughc...@61-220-137-37.hinet-ip.hinet.net) has quit 
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 16:31:39 <vicamo> khfeng: forwarded conf info for you
 16:32:00 <tjaalton> shane: so what should I do with those patches?
 16:37:18 <khfeng> vicamo, joined via phonecall?
 16:37:21 <shane> tjaalton: sorry, wait a minute
 16:37:39 <vicamo> khfeng: yes
 16:43:40 <shane> tjaalton: Do you mean 
https://lists.ubuntu.com/archives/kernel-team/2020-June/110994.html ?
 16:47:15 <khfeng> kentlin_office, vicamo, ... what was that
 16:47:24 <khfeng> kentlin_office, purely wasting time
 16:47:30 <tjaalton> shane: yes
 16:50:11 <tjaalton> shane: I applied before reading the bug comment
 16:51:14 <AceLan> tjaalton: the commits are from here 
https://bugs.launchpad.net/somerville/+bug/1872029
 16:51:14 <mup> Bug #1872029: [Task] e1000e S0ix support for TGL <e1000e> 
<hwe-networking-ethernet> <s0ix> <tigerlake> <somerville:New for kent-jclin> 
<somerville hwe-somerville:In Progress by shanelin> 
<https://launchpad.net/bugs/1872029>
 16:53:34 <tjaalton> I know it's in upstream 5.8 tree
 16:54:11 <tjaalton> both of these
 16:54:48 <AceLan> tjaalton: you want them to be cherry picked from master tree?
 16:55:31 <tjaalton> AceLan: no, khfeng said the second patch causes issues
 16:58:18 <tjaalton> shane: what did you decide after discussing with 
kentlin_office?
 16:59:21 <shane> tjaalton: kentlin_office says he will ask AceLan..
 16:59:52 <-- kyleN (knitzs...@c-73-123-35-110.hsd1.ma.comcast.net) has quit 
(Ping timeout: 121 seconds)
 17:01:27 <AceLan> humm
 17:02:00 <tjaalton> haha
 17:02:34 --> kyleN (knitzs...@c-73-123-35-110.hsd1.ma.comcast.net) has joined 
#hwe
 17:02:44 <tjaalton> and should I just apply that iommu patchset? guess we'll 
find out soon enough it the world blows up..
 17:03:20 <AceLan> khfeng: ^^ # from the e1000e commit description it says 
"Since ME systems do not support SLP_S0 in S0ix state, and S0ix entry and exit 
flows may cause errors on them" do you still think we shouldn't apply this 
commit?
 17:04:11 <kentlin_office> AceLan, so we need this patch to enter SLP_S0?
 17:04:26 <khfeng> AceLan, depends on if we want the systems reach s0ix
 17:04:30 <kentlin_office> AceLan, base on what commit say?
 17:04:38 <khfeng> kentlin_office, the patch _prevents_ s0ix
 17:04:55 <AceLan> kentlin_office: 
https://lists.ubuntu.com/archives/kernel-team/2020-June/110805.html
 17:06:54 <kentlin_office> AceLan, khfeng so only e1000e could not enter s0ix 
with this patch.. is that what it meant or the whole system?
 17:07:45 <khfeng> kentlin_office, ??????
 17:08:32 <AceLan> kentlin_office: only the prevent the listed nic i217, i218, 
and i219 from entering s0ix
 17:10:40 <khfeng> kentlin_office, s0ix is an SoC state...
 17:11:11 <AceLan> khfeng: kentlin_office: I think we should have this commit 
and once we encounter the power consumption issue we can call out for help from 
intel
 17:12:33 <khfeng> AceLan, there's a heated discussion between Lenovo and 
Intel, and the current conclustion is that they won't help :)
 17:13:05 <khfeng> AceLan, you can ask AaronMa on the e1000e issue...
 17:13:41 <AceLan> khfeng: but the commit claims it leads to issues if those 
chips enter s0ix
 17:14:18 <khfeng> AceLan, the patch from AaronMa can workaround the issue, 
however e1000e developers don't like the approach
 17:15:41 <AceLan> khfeng: https://lkml.org/lkml/2020/3/23/809 # this one?
 17:15:59 <khfeng> AceLan, yea that's the one
 17:16:15 <kentlin_office> AceLan, is it in the mainline Kernel or Linus Kernel 
tree? or it is still in Intel next or somewhere else
 17:16:57 <AceLan> kentlin_office: it's in v5.8
 17:17:44 <AceLan> khfeng: does AaronMa backport his commit to ubuntu kernel?
 17:18:08 <AaronMa> Acelan yes
 17:18:49 <AaronMa> Acelan it is not in any tree because of Intel.
 17:19:34 <AaronMa> Acelan only in Ubuntu kernel tree, you should apply it to 
oem kernel
 17:21:19 <AceLan> AaronMa: to which series of kernel do you submit?
 17:22:56 <AaronMa> AceLan: [OEM-OSP-1/E/F/U/OEM-5.6]
 17:24:09 <khfeng> kentlin_office, "s0ix is not POR for Linux"
 17:24:15 <khfeng> kentlin_office, that's their answer
 17:24:19 <khfeng> kentlin_office, don't bother to ask
 17:25:34 <AceLan> AaronMa: got it
 17:26:12 <AceLan> khfeng: kentlin_office: okay, in this case we don't need the 
commit to prevent NICs from entering s0ix
 17:27:17 <AceLan> agree?
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 17:31:30 --> jeremysu (jerem...@61-220-137-37.hinet-ip.hinet.net) has joined 
#hwe
 17:33:00 <AceLan> sounds like no opposing opinion
 17:33:36 <AceLan> tjaalton: it looks like we can drop the seconds e1000e 
patch, since we have a fix for the s0ix issue
 17:37:13 <-- haosheng (haosh...@61-220-137-37.hinet-ip.hinet.net) has quit 
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 17:41:41 <-> alextu-meeting is now known as alextu
 17:46:45 <AaronMa> AceLan: tjaalton 
https://lists.ubuntu.com/archives/kernel-team/2020-April/108691.html
 17:47:15 <AaronMa> AceLan: tjaalton this patch is not in oem-osp-1 or oem-5.6
 17:48:17 <tjaalton> AceLan, AaronMa: cool, I'll do that and add the missing one
 17:49:33 <-- ivanhu (iva...@112-104-28-97.adsl.dynamic.seed.net.tw) has quit 
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 17:53:01 <kentlin_office> khfeng, Then I want that in email than use that to 
tell Dell ha ha...
 17:56:01 --> PHLin (po-...@1.general.phlin.uk.vpn) has joined #hwe
 18:00:52 <tjaalton> AaronMa: actually the patch is in oem-5.6, somehow failed 
to report that
 18:03:05 <AaronMa> tjaalton: oh, yes, in oem-5.6 branch.
 18:03:17 <tjaalton> ah right, it came from the unstable tree

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Title:
  Enable e1000e S0ix on Tiger Lake

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