diff options
| -rw-r--r-- | share/man/man4/scsi.4 | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/share/man/man4/scsi.4 b/share/man/man4/scsi.4 index c4b9cbe9a309..a250fb72a8cf 100644 --- a/share/man/man4/scsi.4 +++ b/share/man/man4/scsi.4 @@ -54,13 +54,17 @@ The .Nm subsystem provides a uniform and modular system for the implementation of drivers to control various -.Tn SCSI +.Tn SCSI , +.Tn ATA , +.Tn NMVe , and -.Tn ATA +.Tn MMC / SD devices, and to utilize different -.Tn SCSI +.Tn SCSI , +.Tn ATA , +.Tn NVMe , and -.Tn ATA +.Tn MMC / SD host adapters through host adapter drivers. When the system probes buses, it attaches any devices it finds to the appropriate drivers. @@ -213,6 +217,31 @@ and use the first respective counted instances. These examples can be combined together to allow a peripheral device to be wired to any particular controller, bus, target, and/or unit instance. .Pp +This also works with +.Xr nvme 4 +drives as well. +.Bd -literal -offset indent +hint.nvme.4.at="pci7:0:0" +hint.scbus.10.at="nvme4" +hint.nda.10.at="scbus10" +hint.nda.10.target="1" +hint.nda.10.unit="12" +hint.nda.11.at="scbus10" +hint.nda.11.target="1" +hint.nda.11.unit="2" +.Ed +.Pp +This assigns the NVMe card living at PCI bus 7 to scbus 10 (in PCIe, +slot and function are rarely used and usually 0). +The target for +.Xr nda 4 +devices is always 1. +The unit is the namespace identifier from the drive. +The namespace id 1 is exported as +.Tn nda10 +and namespace id 2 is exported as +.Tn nda11 . +.Pp When you have a mixture of wired down and counted devices then the counting begins with the first non-wired down unit for a particular type. @@ -225,9 +254,11 @@ The system allows common device drivers to work through many different types of adapters. The adapters take requests from the upper layers and do all IO between the -.Tn SCSI +.Tn SCSI , +.Tn ATA , +.Tn NVMe , or -.Tn ATA +.Tn MMC / SD bus and the system. The maximum size of a transfer is governed by the adapter. @@ -322,6 +353,7 @@ for details. .Xr cd 4 , .Xr ch 4 , .Xr da 4 , +.Xr nvme 4 , .Xr pass 4 , .Xr pt 4 , .Xr sa 4 , @@ -351,3 +383,8 @@ The .Tn ATA support was added by .An Alexander Motin Aq Mt mav@FreeBSD.org . +The +.Nm +.Tn NVMe +support was added by +.An Warner Losh Aq Mt imp@FreeBSD.org . |