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sdauth
Guru
Joined: 19 Sep 2018
Posts: 569
Location: Ásgarðr
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 Posted: Sun Mar 31, 2024 9:01 am Post subject: raid card : mpt2sas overriding NVDATA EEDPTagMode setting |
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Hello,
I just replaced a defective Dell H310 raid card in my server with the exact same model (flashed to IT firmware like the old one), all disks ( 8 ) attached work fine but I have a message appearing in red in dmesg :
| Code: | | mpt2sas_cm0: overriding NVDATA EEDPTagMode setting |
| Code: | [...]
[ 9.396161] mpt2sas_cm0: Current Controller Queue Depth(3364),Max Controller Queue Depth(3432)
[ 9.396162] mpt2sas_cm0: Scatter Gather Elements per IO(128)
[ 9.442233] mpt2sas_cm0: overriding NVDATA EEDPTagMode setting
[ 9.442653] mpt2sas_cm0: LSISAS2008: FWVersion(20.00.07.00), ChipRevision(0x03), BiosVersion(00.00.00.00)
[ 9.442657] mpt2sas_cm0: Protocol=(Initiator,Target), Capabilities=(TLR,EEDP,Snapshot Buffer,Diag Trace Buffer,Task Set Full,NCQ)
[ 9.442732] scsi host0: Fusion MPT SAS Host
[ 9.443632] mpt2sas_cm0: sending port enable !!
[...]
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Any idea of what it means ?
Kernel : 6.1.81
Thanks |
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sdauth
Guru
Joined: 19 Sep 2018
Posts: 569
Location: Ásgarðr
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| Posted: Sun Mar 31, 2024 9:27 am Post subject: |
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This is the portion of relevant code :
drivers/scsi/mpt3sas/mpt3sas_base.c
| Code: | /*
* Ensure correct T10 PI operation if vendor left EEDPTagMode
* flag unset in NVDATA.
*/
rc = mpt3sas_config_get_manufacturing_pg11(ioc, &mpi_reply,
&ioc->manu_pg11);
if (rc)
return rc;
if (!ioc->is_gen35_ioc && ioc->manu_pg11.EEDPTagMode == 0) {
pr_err("%s: overriding NVDATA EEDPTagMode setting\n",
ioc->name);
ioc->manu_pg11.EEDPTagMode &= ~0x3;
ioc->manu_pg11.EEDPTagMode |= 0x1;
mpt3sas_config_set_manufacturing_pg11(ioc, &mpi_reply,
&ioc->manu_pg11);
} |
I can't tell if it was present with the IR firmware and Dell bios, when I received the card years ago, I immediately flashed it to IT and put it in my spare parts box 
Maybe it was already present, who knows...
Is there a way to silent this warning though ? Or fix the "issue" ? |
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steve_v
Guru
Joined: 20 Jun 2004
Posts: 388
Location: New Zealand
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| Posted: Sun Mar 31, 2024 10:29 am Post subject: |
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FWIW I have a SAS2008 based HBA that generates the same warning, and it's been working just fine despite that for over a decade.
EEDP is End-to-End Data Protection, i.e. checksums on the SAS link, in this case the kernel doesn't like the firmware default (i.e. mode set to '0') and overrides it.
AFAICT it's just Yet Another Workaround for buggy vendor firmware, and unless you have other problems with the card I wouldn't worry about it.
If you do want to mess with the firmware settings, sys-block/lsiutil should be the tool you want. Have a look at this example (though note this refers to a SAS3008 where this is reported to cause real problems, so YMMV)
_________________
Once is happenstance. Twice is coincidence. Three times is enemy action. Four times is Official GNOME Policy. |
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sdauth
Guru
Joined: 19 Sep 2018
Posts: 569
Location: Ásgarðr
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| Posted: Sun Mar 31, 2024 10:42 am Post subject: |
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Thanks for the useful information steve_v, good to know. I've thought I messed something while flashing the IT firmware..
I think I'll probably ignore it then. I can't afford to mess with the firmware as this was my last spare raid card but if I do later, I bookmarked your link and will have a look with lsiutil.
All drive are working great otherwise... (with the old card, one port was resetting constantly even after replacing twice the mini sas cables) |
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