Date: Fri, 13 Sep 2019 08:02:35 +0200 From: Sebastian Huber <sebastian.huber@embedded-brains.de> To: FreeBSD <freebsd-hackers@freebsd.org> Subject: Problems with port of NVMe support Message-ID: <dd216882-2375-7751-ca94-57caec3763c5@embedded-brains.de>
next in thread | raw e-mail | index | archive | help
Hello, I port currently the NVMe support from FreeBSD to RTEMS. Basically, it=20 works. I can issue administration commands and some IO commands (e.g.=20 FLUSH). I use this SSD for testing: $ nvmecontrol identify nvme0 Controller Capabilities/Features =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D Vendor ID: 8086 Subsystem Vendor ID: 8086 Serial Number: PHM27390006S280AGN Model Number: INTEL SSDPE21D280GA Firmware Version: E2010325 Recommended Arb Burst: 0 IEEE OUI Identifier: e4 d2 5c Multi-Path I/O Capabilities: Not Supported Max Data Transfer Size: 131072 Controller ID: 0x0000 Version: 0.0.0 My problem is now, that every WRITE transfer ends up in a DATA TRANSFER=20 ERROR: nvme0: WRITE sqid:1 cid:127 nsid:1 lba:0 len:8 nvme0: DATA TRANSFER ERROR (00/04) sqid:1 cid:127 cdw0:0 nvme0: async event occurred (type 0x0, info 0x04, page 0x01) Every READ transfer ends up in a UNRECOVERED READ ERROR: nvme0: READ sqid:1 cid:127 nsid:1 lba:0 len:8 nvme0: UNRECOVERED READ ERROR (02/81) sqid:1 cid:127 cdw0:0 nvme0: async event occurred (type 0x0, info 0x04, page 0x01) I see the transfers in the error log: $ nvmecontrol logpage -p 1 nvme0=20 =20 Error Information Log=20 =20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=20 =20 Entry 01=20 =20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=20 =20 Error count: 2546=20 =20 Submission queue ID: 1=20 =20 Command ID: 32512=20 =20 Status:=20 =20 Phase tag: 0=20 =20 Status code: 129=20 =20 Status code type: 2=20 =20 More: 1=20 =20 DNR: 1=20 =20 Error location: 0=20 =20 LBA: 0=20 =20 Namespace ID: 1=20 =20 Vendor specific info: 0=20 =20 Transport type: 0=20 =20 Command specific info:0=20 =20 Transport specific: 0=20 =20 Entry 02=20 =20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=20 =20 Error count: 2545=20 =20 Submission queue ID: 1=20 =20 Command ID: 32512=20 =20 Status:=20 =20 Phase tag: 0=20 =20 Status code: 4=20 =20 Status code type: 0=20 =20 More: 1=20 =20 DNR: 1=20 =20 Error location: 0=20 =20 LBA: 0=20 =20 Namespace ID: 1=20 =20 Vendor specific info: 0=20 =20 Transport type: 0=20 =20 Command specific info:0=20 =20 Transport specific: 0 From the NVMe specification I didn't get any hints what the error=20 reason could be. Maybe someone has a hint for me. The platform is a=20 T4240 PowerPC (big-endian). --=20 Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.huber@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine gesch=C3=A4ftliche Mitteilung im Sinne des EHUG= .
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?dd216882-2375-7751-ca94-57caec3763c5>