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authorBruce Allan <bruce.w.allan@intel.com>2010-04-27 03:33:04 +0000
committerDavid S. Miller <davem@davemloft.net>2010-04-27 10:18:26 -0700
commit6f461f6c7c961f0b1b73c0f27becf472a0ac606b (patch)
treeebf91b3e79734386ab63e79fef9d2429b6c81a09 /drivers/net/ppp_mppe.c
parent61fac744dddb22d99c7b12250bc9bada7866df08 (diff)
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e1000e: enable/disable ASPM L0s and L1 and ERT according to hardware errata
Prompted by a previous patch submitted by Matthew Garret <mjg@redhat.com>, further digging into errata documentation reveals the current enabling or disabling of ASPM L0s and L1 states for certain parts supported by this driver are incorrect. 82571 and 82572 should always disable L1. For standard frames, 82573/82574/82583 can enable L1 but L0s must be disabled, and for jumbo frames 82573/82574 must disable L1. This allows for some parts to enable L1 in certain configurations leading to better power savings. Also according to the same errata, Early Receive (ERT) should be disabled on 82573 when using jumbo frames. Cc: Matthew Garret <mjg@redhat.com> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ppp_mppe.c')
0 files changed, 0 insertions, 0 deletions
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