Re: [PATCH] nvme-pci: add NVME_QUIRK_DELAY_BEFORE_CHK_RDY for MAXIO MAP1602
From: Josh Taylor
Date: Sat Jul 22 2023 - 10:08:09 EST
This is my first response to a Kernel patch, so I apologise for any formatting weirdness.
I have a Lexar NM790 (4TB), which uses the MAP1602. It looks like this is going to be a fairly popular controller, as it seems a few are using it - as of July 2023 it looks like ~18 M.2 2280 are using it according to techpowerup (https://www.techpowerup.com/ssd-specs/?f&controllerMfgr=Maxiotech#MAP1602).
I however cannot get this patch to work for me on 6.5-rc2 on ArchLinux, nor with 6.4.4.
This is my dmesg when booting (Linux archiso 6.3.9-arch1-1):
[ 6.634874] nvme nvme0: pci function 0000:01:00.0
[ 6.640698] r8169 0000:27:00.0: enabling device (0000 -> 0003)
[ 6.643601] nvme nvme0: Device not ready; aborting initialisation, CSTS=0x0
When doing a suspend, then resuming, I can then re-initialise the device using the rescan steps in the previous email.
I then get this in my dmesg (Linux archiso 6.3.9-arch1-1):
[ 130.948667] pci 0000:01:00.0: Removing from iommu group 14
[ 131.983938] pci 0000:01:00.0: [1d97:1602] type 00 class 0x010802
[ 131.983963] pci 0000:01:00.0: reg 0x10: [mem 0xfcf00000-0xfcf03fff 64bit]
[ 131.984212] pci 0000:01:00.0: 31.504 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x4 link at 0000:00:01.1 (capable of 63.012 Gb/s with 16.0 GT/s PCIe x4 link)
[ 131.984346] pci 0000:01:00.0: Adding to iommu group 14
[ 132.031556] pci 0000:01:00.0: BAR 0: assigned [mem 0xfcf00000-0xfcf03fff 64bit]
[ 132.031662] nvme nvme0: pci function 0000:01:00.0
[ 132.044095] nvme nvme0: allocated 40 MiB host memory buffer.
[ 132.088892] nvme nvme0: 16/0/0 default/read/poll queues
The "allocated 40 MiB host memory buffer" part is interesting, none of my other drives have this, as this is a DRAM-less drive.
# nvme get-feature /dev/nvme0 -f 0x0c -H
get-feature:0x0c (Autonomous Power State Transition), Current value:0x00000001
Autonomous Power State Transition Enable (APSTE): Enabled
Auto PST Entries .................
Entry[ 0]
.................
Idle Time Prior to Transition (ITPT): 100 ms
Idle Transition Power State (ITPS): 3
.................
Entry[ 1]
.................
Idle Time Prior to Transition (ITPT): 100 ms
Idle Transition Power State (ITPS): 3
.................
Entry[ 2]
.................
Idle Time Prior to Transition (ITPT): 100 ms
Idle Transition Power State (ITPS): 3
.................
Entry[ 3]
.................
Idle Time Prior to Transition (ITPT): 2000 ms
Idle Transition Power State (ITPS): 4
.................
Entry[ 4]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 5]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 6]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 7]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 8]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 9]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[10]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[11]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[12]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[13]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[14]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[15]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[16]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[17]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[18]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[19]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[20]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[21]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[22]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[23]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[24]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[25]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[26]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[27]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[28]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[29]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[30]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[31]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................