Re: tg3 pxe weirdness

On Fri, 2017-09-22 at 11:51 +0530, Siva Reddy Kallam wrote:

On Thu, Sep 21, 2017 at 7:53 PM, Berend De Schouwer
[off-list ref] wrote:

quoted

Hi,

I've got a machine with a Broadcom bcm5762c, using the tg3 driver,
that
fails to receive network packets under some very specific
conditions.


Berend

Can you please share below details?
1) Model and Manufacturer of the system

HP EliteDesk 705 G3 SFF
lspci -n on the network card: 01:00.0 0200: 14e4:1687 (rev 10)

dmesg from tg3: 
tg3 0000:01:00.0: PCI INT A -> GSI 24 (level, low) -> IRQ 24
tg3 0000:01:00.0: setting latency timer to 64
tg3 0000:01:00.0: eth0: Tigon3 [partno(none) rev 5762100] (PCI Express)
MAC address 70:5a:0f:3d:9f:4f
tg3 0000:01:00.0: eth0: attached PHY is 5762C (10/100/1000Base-T
Ethernet) (WireSpeed[1], EEE[1])
tg3 0000:01:00.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0]
TSOcap[1]
tg3 0000:01:00.0: eth0: dma_rwctrl[00000001] dma_mask[64-bit]

The same motherboard with add-on network cards does boot using PXE. 
It's an EFI board but Secureboot is currently disabled.

2) Linux distro/kernel used?

CentOS 6 + updates.  I've tried all the CentOS 6 kernels up to 2.6.32-
696.10.2.el6.x86_64

I've tried updating the tg3 driver from 3.137 to both 3.137h and
3.137o, with the same result.

I'm currently in the process of making 4.13.2 boot.