]> www.infradead.org Git - users/jedix/linux-maple.git/commit
i40e/i40evf: Add a stat to track how many times we have to do a force WB
authorAnjali Singhai Jain <anjali.singhai@intel.com>
Wed, 21 Oct 2015 23:47:08 +0000 (19:47 -0400)
committerChuck Anderson <chuck.anderson@oracle.com>
Thu, 10 Mar 2016 16:33:19 +0000 (08:33 -0800)
commit73d0770dc5b506069198318d7cc5820bc35d8d58
treedf5e540fd557376e45f5e02175298b5f17edbd45
parenta34debc2556e2fc2e719cf782739dbb9ae52e84d
i40e/i40evf: Add a stat to track how many times we have to do a force WB

Orabug: 22342532

When in NAPI with interrupts disabled, the HW needs to be forced to do a
write back on TX if the number of descriptors pending are less than a
cache line.

This stat helps keep track of how many times we get into this situation.

Change-ID: I76c1bcc7ebccd6bffcc5aa33bfe05f2fa1c9a984
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 164c9f54631beca4d174f306acdcaec2bdeef52e)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
drivers/net/ethernet/intel/i40e/i40e.h
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
drivers/net/ethernet/intel/i40e/i40e_main.c
drivers/net/ethernet/intel/i40e/i40e_txrx.c
drivers/net/ethernet/intel/i40e/i40e_txrx.h
drivers/net/ethernet/intel/i40evf/i40e_txrx.c
drivers/net/ethernet/intel/i40evf/i40e_txrx.h