Commit c769e03f authored by Dariusz Stojaczyk's avatar Dariusz Stojaczyk Committed by Daniel Verkamp
Browse files

doc/virtio: remove Virtio-SCSI references from lib/virtio doc 



Also removed Virtio-SCSI 1GB hugepage limitation.

Change-Id: Ife200cb7671e2c6366fbfcc679aa67bbc1c30457
Signed-off-by: default avatarDariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/408828


Tested-by: default avatarSPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: default avatarDaniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent 5b424282

doc/bdev.md

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@@ -281,7 +281,7 @@ Example command 


# Virtio SCSI {#bdev_config_virtio_scsi}



The @ref virtio allows creating SPDK block devices from Virtio-SCSI LUNs.

The Virtio-SCSI driver allows creating SPDK block devices from Virtio-SCSI LUNs.



The following command creates a Virtio-SCSI device named `VirtioScsi0` from a vhost-user

socket `/tmp/vhost.0` exposed directly by SPDK @ref vhost. Optional `vq-count` and
@@ -296,8 +296,8 @@ reflect all parameters passed to QEMU's vhost-user-scsi-pci device. 


`rpc.py construct_virtio_pci_scsi_bdev 0000:00:01.0 VirtioScsi0`



Each Virtio-SCSI device may export up to 64 block devices named VirtioScsi0t0 ~ VirtioScsi0t63.

The above 2 commands will output names of all exposed bdevs.

Each Virtio-SCSI device may export up to 64 block devices named VirtioScsi0t0 ~ VirtioScsi0t63,

one LUN (LUN0) per SCSI device. The above 2 commands will output names of all exposed bdevs.



Virtio-SCSI devices can be removed with the following command

doc/virtio.md

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@@ -17,10 +17,4 @@ the overall I/O performance. 


This Virtio library is currently used to implement two bdev modules:

@ref bdev_config_virtio_scsi and Virtio Blk. These modules will export generic

SPDK block devices usable by any other SPDK application.



# Limitations {#virtio_limitations}



Current Virtio-SCSI implementation has a couple of limitations:

 * supports only up to 8 hugepages (implies only 1GB sized pages are practical)

 * single LUN per target
 
SPDK block devices usable by any SPDK application.