e1000e: Set HTHRESH when PTHRESH is used

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According to section 12.0.3.4.13 "Receive Descriptor Control - RXDCTL"
of the Intel® 82579 Gigabit Ethernet PHY Datasheet v2.1:

    "HTHRESH should be given a non zero value when ever PTHRESH is
     used."

In RXDCTL(0), PTHRESH lives at bits 5:0, and HTHREST lives at bits 13:8.
Set only bit 8 of HTHREST as is done in e1000_flush_rx_ring(). Found by
inspection.

Signed-off-by: Matt Turner <matt.turner@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

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Matt Turner 2017-11-07 14:13:30 -08:00 • committed by Jeff Kirsher

parent 28cb2d1b0c

commit b701cacdbc

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/intel/e1000e/netdev.c

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