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eca90f5504
A bus trace shows that while executing e1000e_down, TCTL is cleared except for the PSP bit. This occurs while in the middle of fetching a TSO packet since the Tx packet buffer is full at that point. Before the device is reset, the e1000_watchdog_task starts to run from the middle (it was apparently pre-empted earlier, although that is not in the trace) and sets TCTL.EN. At that point, 82571 transmits the corrupted packet, apparently because TCTL.MULR was cleared in the middle of fetching a packet, which is forbidden. Driver should just clear TCTL.EN in e1000_reset_hw_82571 instead of clearing the entire register, so as not to change any settings in the middle of fetching a packet. Signed-off-by: Tushar Dave <tushar.n.dave@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> |
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| .. | ||
| appletalk | ||
| arcnet | ||
| bonding | ||
| caif | ||
| can | ||
| cris | ||
| dsa | ||
| ethernet | ||
| fddi | ||
| hamradio | ||
| hippi | ||
| hyperv | ||
| irda | ||
| phy | ||
| plip | ||
| ppp | ||
| slip | ||
| team | ||
| usb | ||
| vmxnet3 | ||
| wan | ||
| wimax | ||
| wireless | ||
| xen-netback | ||
| dummy.c | ||
| eql.c | ||
| ifb.c | ||
| Kconfig | ||
| LICENSE.SRC | ||
| loopback.c | ||
| macvlan.c | ||
| macvtap.c | ||
| Makefile | ||
| mdio.c | ||
| mii.c | ||
| netconsole.c | ||
| rionet.c | ||
| sb1000.c | ||
| Space.c | ||
| sungem_phy.c | ||
| tun.c | ||
| veth.c | ||
| virtio_net.c | ||
| xen-netfront.c | ||