summaryrefslogtreecommitdiffstats
path: root/drivers/pci/pci.c
diff options
context:
space:
mode:
authorJon Mason <mason@myri.com>2011-09-08 23:41:18 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-09-10 04:49:58 +0200
commited2888e906b56769b4ffabb9c577190438aa68b8 (patch)
tree81d55511aaa0b2b4074b9432fee3e23beb98b503 /drivers/pci/pci.c
parentFix pointer dereference before call to pcie_bus_configure_settings (diff)
downloadlinux-ed2888e906b56769b4ffabb9c577190438aa68b8.tar.xz
linux-ed2888e906b56769b4ffabb9c577190438aa68b8.zip
PCI: Remove MRRS modification from MPS setting code
Modifying the Maximum Read Request Size to 0 (value of 128Bytes) has massive negative ramifications on some devices. Without knowing which devices have this issue, do not modify from the default value when walking the PCI-E bus in pcie_bus_safe mode. Also, make pcie_bus_safe the default procedure. Tested-by: Sven Schnelle <svens@stackframe.org> Tested-by: Simon Kirby <sim@hostway.ca> Tested-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Reported-and-tested-by: Eric Dumazet <eric.dumazet@gmail.com> Reported-and-tested-by: Niels Ole Salscheider <niels_ole@salscheider-online.de> References: https://bugzilla.kernel.org/show_bug.cgi?id=42162 Signed-off-by: Jon Mason <mason@myri.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 0ce67423a0a3..4e84fd4a4312 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -77,7 +77,7 @@ unsigned long pci_cardbus_mem_size = DEFAULT_CARDBUS_MEM_SIZE;
unsigned long pci_hotplug_io_size = DEFAULT_HOTPLUG_IO_SIZE;
unsigned long pci_hotplug_mem_size = DEFAULT_HOTPLUG_MEM_SIZE;
-enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_PERFORMANCE;
+enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_SAFE;
/*
* The default CLS is used if arch didn't set CLS explicitly and not