kib [Wed, 7 Aug 2013 10:07:55 +0000 (10:07 +0000)]
Revert the MFC of the r244237, done as r244806. There are indeed bugs
in XEN pmap. The revert hides a panic with the cost of non-working
vfork(2), which means more obscure misbehaviour in the usermode.
Revert is only done on the stable branch to maintain the consistent
erratic behaviour.
jfv [Tue, 6 Aug 2013 21:16:00 +0000 (21:16 +0000)]
When the igb driver is static there are cases when early interrupts occur,
resulting in a panic in refresh_mbufs, to prevent this add a check to the
interrupt handler for DRV_RUNNING.
jhb [Tue, 6 Aug 2013 20:04:44 +0000 (20:04 +0000)]
MFC 253048,253423,253449,253653,253774,253785:
- Allow mlx4 devices to switch between Ethernet and Infiniband:
- Fix sysfs attribute handling by using sysctl_handle_string() and
properly handling trailing newlines in attribute values.
- Remove check forbidding requests that would result in one port being
set to Ethernet and the subsequent port being set to IB.
- Avoid trashing IP fragments by correctly managing hardware checksumming.
- Fix panics when downing or unloading the mlx4 driver.
PR: kern/179999, kern/174213, kern/180430, kern/180791
Approved by: re (kib)
jfv [Tue, 6 Aug 2013 17:22:06 +0000 (17:22 +0000)]
MFC r253865: Fixes to RX_COPY optimization code allowing the removal of rearm_queues
routine used in the local_timer.
r253965: Correct the queue mask bit clearing in the link irq handler.