]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
ice: don't spam VFs with link messages
authorMitch Williams <mitch.a.williams@intel.com>
Fri, 8 Feb 2019 20:50:37 +0000 (12:50 -0800)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Mon, 25 Feb 2019 16:56:01 +0000 (08:56 -0800)
commit4cf7bc0d276ba1fcd1330b83cece162cdf3a482b
tree970386f7c04e6173f00c5023c70e25159b364792
parentb751930c6c21c3a6abc447f4f76fa2c28a11cb91
ice: don't spam VFs with link messages

Don't send a link message to the VFs unless link actually changes state.
This avoids a small timing hole in some VF drivers that can cause an
apparent TX hang if they receive a link status message at the wrong time.

Although we have fixed the timing hole in the current VF driver, there
are still lots of drivers in the field that have this timing hole. Let's
not fall into it if we can avoid it.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/ice/ice_main.c