i40e: Add a check to see if MFS is set

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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 <todd.fujinaka@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Todd Fujinaka 2020-05-28 22:27:12 -07:00 • committed by Jeff Kirsher

parent fffeeddfcf

commit 3a2c6ced90

1 changed files with 8 additions and 0 deletions

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drivers/net/ethernet/intel/i40e/i40e_main.c

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