Diffusion FreeBSD src repository - subversion rS334940

- Add bhyve virtio-scsi storage backend support.
rS334940
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Description

Add bhyve virtio-scsi storage backend support.

Example of configuration:
ctl.conf:
portal-group pg0 {

discovery-auth-group no-authentication
listen 0.0.0.0
listen [::]

}

target iqn.2012-06.com.example:target0 {

auth-group no-authentication
portal-group pg0
port ioctl/5/3

lun 0 {
        path /z/test.img
        size 8G
}
lun 1 {
        path /z/test1.img
        size 8G
}

}

bhyve <...> -s 4,virtio-scsi,/dev/cam/ctl5.3,iid=3 <VM_NAME>

From inside guest:
root@:~ # zpool status test

pool: test

state: ONLINE

scan: none requested

config:

NAME        STATE     READ WRITE CKSUM
test        ONLINE       0     0     0
  da0       ONLINE       0     0     0
  da1       ONLINE       0     0     0

dmesg:
da0 at vtscsi0 bus 0 scbus0 target 0 lun 0
da0: <FREEBSD CTLDISK 0001> Fixed Direct Access SPC-5 SCSI device
da0: Serial Number MYSERIAL0000
da0: 300.000MB/s transfers
da0: Command Queueing enabled
da0: 8192MB (16777216 512 byte sectors)
da1 at vtscsi0 bus 0 scbus0 target 0 lun 1
da1: <FREEBSD CTLDISK 0001> Fixed Direct Access SPC-5 SCSI device
da1: Serial Number MYSERIAL0001
da1: 300.000MB/s transfers
da1: Command Queueing enabled
da1: 8192MB (16777216 512 byte sectors)

Discussed with: grehan
Reviewed by: mav
Obtained from: TrueOS
Relnotes: Yes
Sponsored by: iXsystems Inc.
Tested with: FreeBSD HEAD, Fedora 28 (Workstation) and