Messages in this thread | | | From | "R, Monish Kumar" <> | Subject | RE: 2 second nvme initialization delay regression in 5.18 [Was: Re: [bug report]nvme0: Admin Cmd(0x6), I/O Error (sct 0x0 / sc 0x2) MORE DNR observed during blktests] | Date | Mon, 13 Jun 2022 06:36:44 +0000 |
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Hi Christoph,
Please see the below nvme id-ctrl response of Samsung X5 SSD.
NVME Identify Controller: vid : 0x144d ssvid : 0x144d sn : <redacted> mn : Samsung Portable SSD X5 fr : 1P3QEXE7 rab : 2 ieee : 002538 cmic : 0 mdts : 9 cntlid : 4 ver : 10300 rtd3r : 30d40 rtd3e : 7a1200 oaes : 0 ctratt : 0 rrls : 0 oacs : 0x7 acl : 7 aerl : 3 frmw : 0x16 lpa : 0x3 elpe : 63 npss : 4 avscc : 0x1 apsta : 0x1 wctemp : 329 cctemp : 330 mtfa : 0 hmpre : 0 hmmin : 0 tnvmcap : 500107862016 unvmcap : 0 rpmbs : 0 edstt : 0 dsto : 0 fwug : 0 kas : 0 hctma : 0 mntmt : 0 mxtmt : 0 sanicap : 0 hmminds : 0 hmmaxd : 0 nsetidmax : 0 sqes : 0x66 cqes : 0x44 maxcmd : 0 nn : 1 oncs : 0x1f fuses : 0 fna : 0x5 vwc : 0x1 awun : 127 awupf : 0 nvscc : 1 acwu : 0 sgls : 0 subnqn : ioccsz : 0 iorcsz : 0 icdoff : 0 ctrattr : 0 msdbd : 0 ps 0 : mp:6.20W operational enlat:0 exlat:0 rrt:0 rrl:0 rwt:0 rwl:0 idle_power:- active_power:- ps 1 : mp:4.30W operational enlat:0 exlat:0 rrt:1 rrl:1 rwt:1 rwl:1 idle_power:- active_power:- ps 2 : mp:2.10W operational enlat:0 exlat:0 rrt:2 rrl:2 rwt:2 rwl:2 idle_power:- active_power:- ps 3 : mp:0.0400W non-operational enlat:210 exlat:1200 rrt:3 rrl:3 rwt:3 rwl:3 idle_power:- active_power:- ps 4 : mp:0.0050W non-operational enlat:2000 exlat:8000 rrt:4 rrl:4 rwt:4 rwl:4 idle_power:- active_power:-
Regards, Monish Kumar R
-----Original Message----- From: Jason A. Donenfeld <Jason@zx2c4.com> Sent: 10 June 2022 14:50 To: Christoph Hellwig <hch@lst.de> Cc: R, Monish Kumar <monish.kumar.r@intel.com>; open list:NVM EXPRESS DRIVER <linux-nvme@lists.infradead.org>; Sagi Grimberg <sagi@grimberg.me>; alan.adamson@oracle.com; LKML <linux-kernel@vger.kernel.org>; Yi Zhang <yi.zhang@redhat.com>; Keith Busch <kbusch@kernel.org>; axboe@fb.com; Rao, Abhijeet <abhijeet.rao@intel.com> Subject: Re: 2 second nvme initialization delay regression in 5.18 [Was: Re: [bug report]nvme0: Admin Cmd(0x6), I/O Error (sct 0x0 / sc 0x2) MORE DNR observed during blktests]
Hi Christoph,
On Fri, Jun 10, 2022 at 08:14:49AM +0200, Christoph Hellwig wrote: > That leaves us with two plausible theories: > > - the problems could be due to an earlier firmware version or > ASIC stepping > - the problems are due to the thunderbolt attachment
Right, that seems like the set of variance we're dealing with. If it's a firmware version issue, then we revert because people can update? Or can we quirk firmware version numbers too? If it's ASIC stepping, I guess we need to quirk that. And likewise thunderbolt, but that seems more awkward to quirk around, because afaik, it all just appears as PCIe?
> Monish and Jason, can you please send me the output of nvme id-ctrl > /dev/nvmeX (where /dev/nvmeX is the actual device number)?
NVME Identify Controller: vid : 0x144d ssvid : 0x144d sn : <redacted> mn : Samsung SSD 970 EVO Plus 2TB fr : 2B2QEXM7 rab : 2 ieee : 002538 cmic : 0 mdts : 9 cntlid : 0x4 ver : 0x10300 rtd3r : 0x30d40 rtd3e : 0x7a1200 oaes : 0 ctratt : 0 rrls : 0 cntrltype : 0 fguid : crdt1 : 0 crdt2 : 0 crdt3 : 0 nvmsr : 0 vwci : 0 mec : 0 oacs : 0x17 acl : 7 aerl : 3 frmw : 0x16 lpa : 0x3 elpe : 63 npss : 4 avscc : 0x1 apsta : 0x1 wctemp : 358 cctemp : 358 mtfa : 0 hmpre : 0 hmmin : 0 tnvmcap : 2000398934016 unvmcap : 0 rpmbs : 0 edstt : 35 dsto : 0 fwug : 0 kas : 0 hctma : 0x1 mntmt : 356 mxtmt : 358 sanicap : 0 hmminds : 0 hmmaxd : 0 nsetidmax : 0 endgidmax : 0 anatt : 0 anacap : 0 anagrpmax : 0 nanagrpid : 0 pels : 0 domainid : 0 megcap : 0 sqes : 0x66 cqes : 0x44 maxcmd : 0 nn : 1 oncs : 0x5f fuses : 0 fna : 0x5 vwc : 0x1 awun : 1023 awupf : 0 icsvscc : 1 nwpc : 0 acwu : 0 ocfs : 0 sgls : 0 mnan : 0 maxdna : 0 maxcna : 0 subnqn : ioccsz : 0 iorcsz : 0 icdoff : 0 fcatt : 0 msdbd : 0 ofcs : 0 ps 0 : mp:7.50W operational enlat:0 exlat:0 rrt:0 rrl:0 rwt:0 rwl:0 idle_power:- active_power:- ps 1 : mp:5.90W operational enlat:0 exlat:0 rrt:1 rrl:1 rwt:1 rwl:1 idle_power:- active_power:- ps 2 : mp:3.60W operational enlat:0 exlat:0 rrt:2 rrl:2 rwt:2 rwl:2 idle_power:- active_power:- ps 3 : mp:0.0700W non-operational enlat:210 exlat:1200 rrt:3 rrl:3 rwt:3 rwl:3 idle_power:- active_power:- ps 4 : mp:0.0050W non-operational enlat:2000 exlat:8000 rrt:4 rrl:4 rwt:4 rwl:4 idle_power:- active_power:-
Jason
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