It has been reported that under certain heavy traffic conditions
mode, the driver can lose an MSI-X vector causing all packets in
associated rx/tx ring pair to be dropped. The problem is caused
the chip dropping the write to unmask the MSI-X vector by the
(when migrating the IRQ for example).
This can be prevented by increasing the GRC timeout value for
register read and write operations.
Thanks to Dell for helping us debug this problem.
Signed-off-by: Michael Chan <email@example.com>
we are using the 2.6.32 kernel and are bitten by this frequently.
Kernel: Linux 2.6.37-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
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