[Bug 1437353] Re: UEFI network boot hangs at grub for adapter 82599ES 10-Gigabit SFI/SFP+

[Matt Dirba]

I checked out the latest version of grub, built an image using grub-mknetdir, and the ARP storm is from the efinet driver.  The 
code is stuck in the following loop in net/drivers/efi/efinet.c lines 43 through 66.  efi_call_3 always returns a txbuf that does not match dev->txbuf, and eif_call_7 is repeatedly called until the limit_time has been exceeded.  Any thoughts from the grub team on what could be the problem or what I should do to continue to debug?


   while (1)
      {
        txbuf = NULL;
        st = efi_call_3 (net->get_status, net, 0, &txbuf);
        if (st != GRUB_EFI_SUCCESS)
          return grub_error (GRUB_ERR_IO,
                             N_("couldn't send network packet"));
        if (txbuf == dev->txbuf)
          {
            dev->txbusy = 0;
            break;
          }
        if (txbuf)
          {
            st = efi_call_7 (net->transmit, net, 0, dev->last_pkt_size,
                             dev->txbuf, NULL, NULL, NULL);
            if (st != GRUB_EFI_SUCCESS)
              return grub_error (GRUB_ERR_IO,
                                 N_("couldn't send network packet"));
          }
        if (limit_time < grub_get_time_ms ())
          return grub_error (GRUB_ERR_TIMEOUT,
                             N_("couldn't send network packet"));
      }

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Title:
  UEFI network boot hangs at grub for adapter 82599ES 10-Gigabit
  SFI/SFP+

Status in MAAS:
  Triaged
Status in A Twisted-based TFTP implementation:
  New
Status in grub2 package in Ubuntu:
  New

Bug description:
   I am using MAAS to commission and install machines. When I attempt to commission a machine with a "82599ES 10-Gigabit SFI/SFP+" network adapter the following happens:
  1) TFTP Request — bootx64.efi
  2) TFTP Request — /grubx64.efi
  3) Console hangs at grub prompt

  If I go into bios and force the adapter above into legacy mode then the machine is able to network boot and run through the commission process.
  1) TFTP Request — ubuntu/amd64/generic/trusty/release/boot-initrd
  2) TFTP Request — ubuntu/amd64/generic/trusty/release/boot-kernel
  3) TFTP Request — ifcpu64.c32
  4) PXE Request — power off
  5) TFTP Request — pxelinux.cfg/01-90-e2-ba-52-23-78
  6) TFTP Request — pxelinux.cfg/71e3f102-bd8b-11e4-b634-3c18a001c80a
  7) TFTP Request — pxelinux.0

  Also, if I disconnect the cable to the adapter above and connect a
  cable to the integrated "I210 Gigabit" adapter which is configured for
  UEFI mode. The machine is able to network boot grubx64.efi and run
  through the commission process.

  ~$ dpkg -l '*maas*'|cat
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                  Version                            Architecture Description
  +++-=====================================-==================================-============-===============================================================================
  ii  maas                                  1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS server all-in-one metapackage
  ii  maas-cli                              1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS command line API tool
  ii  maas-cluster-controller               1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS server cluster controller
  ii  maas-common                           1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS server common files
  ii  maas-dhcp                             1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS DHCP server
  ii  maas-dns                              1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS DNS server
  ii  maas-proxy                            1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS Caching Proxy
  ii  maas-region-controller                1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS server complete region controller
  ii  maas-region-controller-min            1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS Server minimum region controller
  ii  python-django-maas                    1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS server Django web framework
  ii  python-maas-client                    1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS python API client
  ii  python-maas-provisioningserver        1.7.2+bzr3355-0ubuntu1~trusty1     all          MAAS server provisioning libraries
  ~$

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