PCI: Chelsio quirk: Enable Bus Master during Function-Level Reset

Browse source

T4 can wedge if there are DMAs in flight within the chip and Bus
Master has been disabled.  We need to have it on till the Function
Level Reset completes.  T4 can also suffer a Head Of Line blocking
problem if MSI-X interrupts are disabled before the FLR has completed.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

...

This commit is contained in:

Casey Leedom 2013-08-06 15:48:37 +05:30 • committed by Bjorn Helgaas

parent 3775a209d3

commit 2c6217e0fc

1 changed files with 79 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

79

drivers/pci/quirks.c

View file