[Bug 1554214] [NEW] Usege of vfio-pci module via /etc/dpdk/interfaces doesn't work

[Thiago Martins]

Public bug reported:

Guys,

 I'm trying to use the "vfio-pci" with DPDK under Xenial but, it does
not work.

 When with "uio-pci-generic", it works, like this:

---
pci     0000:01:00.0    uio-pci-generic
pci     0000:01:00.1    uio-pci-generic
---

 After reboot, I can see that devices and bounded to DPDK-compatible
driver "dpdk_nic_bind --status", as expected.

 However, when I change it to "vfio-pci", it does not work anymore, like
this:

---
pci    0000:01:00.0    vfio-pci
pci    0000:01:00.1    vfio-pci
---

 I tried to add "vfio-pci" to the "/etc/modules" but, it also doesn't
work after reboot.

 So, I disabled all entries under "/etc/dpdk/interfaces", to try it
manually, like this:

---
dpdk_nic_bind --bind=vfio-pci em1
dpdk_nic_bind --bind=vfio-pci em2
---

 Then, it worked! Look the output of "dpdk_nic_bind --status":

---
Network devices using DPDK-compatible driver
============================================
0000:01:00.0 'NetXtreme II BCM57800 1/10 Gigabit Ethernet' drv=vfio-pci unused=bnx2x
0000:01:00.1 'NetXtreme II BCM57800 1/10 Gigabit Ethernet' drv=vfio-pci unused=bnx2x
---

 So, it is not working via "/etc/dpdk/interfaces" but works manually!

 NOTE: To make it work manually, the module "vfio-pci" must be declared
at "/etc/modules" as well.

Cheers!
Thiago

** Affects: dpdk (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to dpdk in Ubuntu.
https://bugs.launchpad.net/bugs/1554214

Title:
  Usege of vfio-pci module via /etc/dpdk/interfaces doesn't work

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/dpdk/+bug/1554214/+subscriptions