linux/drivers/pci
Jon Mason d387a8d666 PCI: Workaround for Intel MPS errata
Intel 5000 and 5100 series memory controllers have a known issue if read
completion coalescing is enabled and the PCI-E Maximum Payload Size is
set to 256B.  To work around this issue, disable read completion
coalescing in the memory controller and root complexes.  Unfortunately,
it must always be disabled, even if no 256B MPS devices are present, due
to the possibility of one being hotplugged.

Links to erratas:
http://www.intel.com/content/dam/doc/specification-update/5000-chipset-memory-controller-hub-specification-update.pdf
http://www.intel.com/content/dam/doc/specification-update/5100-memory-controller-hub-chipset-specification-update.pdf

Thanks to Jesse Brandeburg and Ben Hutchings for providing insight into
the problem.

Tested-and-Reported-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Jon Mason <mason@myri.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-10-27 12:45:42 -07:00
..
hotplug PCI hotplug: acpiphp: Prevent deadlock on PCI-to-PCI bridge remove 2011-10-14 09:05:31 -07:00
pcie PCI / PM: Extend PME polling to all PCI devices 2011-10-14 09:05:31 -07:00
.gitignore
Kconfig PCI: Add support for PASID capability 2011-10-14 09:05:35 -07:00
Makefile PCI: Move ATS implementation into own file 2011-10-14 09:05:33 -07:00
access.c PCI: handle positive error codes 2011-05-10 15:43:36 -07:00
ats.c PCI: Add support for PASID capability 2011-10-14 09:05:35 -07:00
bus.c PCI/sysfs: move bus cpuaffinity to class dev_attrs 2011-05-21 12:17:13 -07:00
hotplug-pci.c PCI: fix section mismatch warning in pci_scan_child_bus 2008-03-04 15:07:03 -08:00
hotplug.c
htirq.c drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
ioapic.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
iov.c PCI: Move ATS implementation into own file 2011-10-14 09:05:33 -07:00
irq.c PCI: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-07 11:12:23 -08:00
msi.c drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
msi.h PCI: MSI: Move MSI-X entry definition to pci_regs.h 2010-12-23 12:53:07 -08:00
of.c PCI: OF: Don't crash when bridge parent is NULL. 2011-08-19 08:51:37 -07:00
pci-acpi.c PCI / PM: Remove unnecessary error variable from acpi_dev_run_wake() 2011-10-14 09:05:32 -07:00
pci-driver.c PCI / PM: Detect early wakeup in pci_pm_prepare() 2011-07-06 10:51:40 +02:00
pci-label.c pci-label.c: size_t misspelled as mode_t 2011-07-26 13:01:09 -04:00
pci-stub.c PCI: pci-stub: ignore zero-length id parameters 2010-12-23 12:53:52 -08:00
pci-sysfs.c PCI/sysfs: move bus cpuaffinity to class dev_attrs 2011-05-21 12:17:13 -07:00
pci.c PCI / PM: Extend PME polling to all PCI devices 2011-10-14 09:05:31 -07:00
pci.h PCI: make cardbus-bridge resources optional 2011-08-01 11:50:40 -07:00
probe.c PCI: Disable MPS configuration by default 2011-10-04 09:52:28 -07:00
proc.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
quirks.c PCI: Workaround for Intel MPS errata 2011-10-27 12:45:42 -07:00
remove.c PCI/sysfs: move bus cpuaffinity to class dev_attrs 2011-05-21 12:17:13 -07:00
rom.c PCI: fix rom.c kernel-doc warning 2009-02-13 12:01:56 -08:00
search.c PCI: use for_each_pci_dev() 2010-07-30 09:47:22 -07:00
setup-bus.c PCI: Make pci_setup_bridge() non-static for use by arch code 2011-10-14 09:05:29 -07:00
setup-irq.c PCI: Make the struct pci_dev * argument of pci_fixup_irqs const. 2011-07-22 08:26:06 -07:00
setup-res.c PCI : ability to relocate assigned pci-resources 2011-08-01 11:50:15 -07:00
slot.c PCI: bus speed strings should be const 2010-08-31 15:28:00 -07:00
syscall.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
vpd.c pci: Add helper to search for VPD keywords 2010-02-28 00:43:33 -08:00
xen-pcifront.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00