diff options
| author | Michael Brown | 2012-10-26 01:09:09 +0200 |
|---|---|---|
| committer | Michael Brown | 2012-10-28 19:53:23 +0100 |
| commit | 0c5e3df6d91961e05844678e70902f0537cb2a22 (patch) | |
| tree | 5654f5d8514267767948f2514464dbac9d0b9b15 /src/include/cpu.h | |
| parent | [hermon] Use PCI VPD for non-volatile option storage (diff) | |
| download | ipxe-0c5e3df6d91961e05844678e70902f0537cb2a22.tar.gz ipxe-0c5e3df6d91961e05844678e70902f0537cb2a22.tar.xz ipxe-0c5e3df6d91961e05844678e70902f0537cb2a22.zip | |
[intel] Poll RX queue if hardware reports RX overflow
The Intel NIC emulation in some versions of VMware seems to suffer
from a flaw whereby the Interrupt Cause Register (ICR) fails to assert
the usual "packet received" bit (ICR.RXT0) if a receive overflow
(ICR.RXO) has also occurred.
Work around this flaw by polling for completed descriptors whenever
either ICR.RXT0 or ICR.RXO is asserted.
Reported-by: Miroslav Halas <miroslav.halas@bankofamerica.com>
Debugged-by: Miroslav Halas <miroslav.halas@bankofamerica.com>
Tested-by: Miroslav Halas <miroslav.halas@bankofamerica.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include/cpu.h')
0 files changed, 0 insertions, 0 deletions