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authorBruce Allan <bruce.w.allan@intel.com>2013-01-12 07:25:22 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2013-01-27 23:27:41 -0800
commit3e35d9918cbbc224f88da4dd19cd90b2cd4f765e (patch)
tree81baa95ae359030814558a35ffd3c359ebe4ece1 /drivers/acpi/acpi_i2c.c
parentc3d2dbf403367eb5c17f044aa74b772508d745c1 (diff)
e1000e: adjust PM QoS request
It has been found that devices other than 82579 (a.k.a. e1000_pch2lan) suffer from dropped transactions on platforms with deep C-states when jumbo frames are enabled. For example, LOMs on ICH9- and ICH10-based platforms which recently had early-receive de-featured (for stability reasons) suffer from this. To resolve this for all devices, when jumbo frames are enabled set the PM QoS DMA latency request based on the size of the receive packet buffer less one full frame. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/acpi/acpi_i2c.c')
0 files changed, 0 insertions, 0 deletions