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e1000e: low throughput using 4K jumbos on I218

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Alter the packet buffer allocation accordingly.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan
2013-06-21 09:07:07 +00:00
committed by Jeff Kirsher
parent da1e2046e5
commit ce345e082e
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/intel/e1000e/netdev.c
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@@ -3819,6 +3819,8 @@ void e1000e_reset(struct e1000_adapter *adapter)
break; break;
} }
pba = 14;
ew32(PBA, pba);
fc->high_water = ((pba << 10) * 9 / 10) & E1000_FCRTH_RTH; fc->high_water = ((pba << 10) * 9 / 10) & E1000_FCRTH_RTH;
fc->low_water = ((pba << 10) * 8 / 10) & E1000_FCRTL_RTL; fc->low_water = ((pba << 10) * 8 / 10) & E1000_FCRTL_RTL;
break; break;