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| author |   Matt Turner <matt.turner@intel.com> | 2017-11-07 14:13:30 -0800 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-01-24 12:27:48 -0800 |
| commit | b701cacdbcfb65a5ba38d9d4121c12a0a4eaa01a (patch) | |
| tree | 3a939f954b75aa3e3469f82f5d2ad17bd4e709bc /drivers/net/ethernet/intel/e1000e/netdev.c | |
| parent | igb: add function to get maximum RSS queues (diff) | |
| download | linux-dev-b701cacdbcfb65a5ba38d9d4121c12a0a4eaa01a.tar.xz linux-dev-b701cacdbcfb65a5ba38d9d4121c12a0a4eaa01a.zip | |
e1000e: Set HTHRESH when PTHRESH is used
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>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/netdev.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/netdev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 9f18d39bdc8f..5af93ce5acc6 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -3303,7 +3303,7 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) if (adapter->flags & FLAG_IS_ICH) { u32 rxdctl = er32(RXDCTL(0)); - ew32(RXDCTL(0), rxdctl | 0x3); + ew32(RXDCTL(0), rxdctl | 0x3 | BIT(8)); } pm_qos_update_request(&adapter->pm_qos_req, lat); |