From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bowers, AndrewX Date: Wed, 22 Apr 2020 18:49:03 +0000 Subject: [Intel-wired-lan] [net-next v2] i40e: Add a check to see if MFS is set In-Reply-To: <20200421221734.503494-1-jeffrey.t.kirsher@intel.com> References: <20200421221734.503494-1-jeffrey.t.kirsher@intel.com> Message-ID: <38c988b9d043460a804500d8c765af85@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: -----Original Message----- From: Intel-wired-lan On Behalf Of Jeff Kirsher Sent: Tuesday, April 21, 2020 3:18 PM To: intel-wired-lan@lists.osuosl.org Subject: [Intel-wired-lan] [net-next v2] i40e: Add a check to see if MFS is set From: Todd Fujinaka A customer was chain-booting to provision his systems and one of the steps was setting MFS. MFS isn't cleared by normal warm reboots (clearing requires a GLOBR) and there was no indication of why Jumbo Frame receives were failing. Add a warning if MFS is set to anything lower than the default. Signed-off-by: Todd Fujinaka --- v2: fix the math calculation on accessing the SAH register drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++++++++ 1 file changed, 9 insertions(+) Tested-by: Andrew Bowers