fm10k: comment next_vf_mbx flow

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Add a header comment explaining why we have the somewhat crazy mailbox
flow. This flow is necessary as it prevents the PF<->SM mailbox from
being flooded by the VF messages, which normally trigger a message to
the PF. This helps prevent the case where we see a PF mailbox timeout.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Jeff Kirsher 2015-04-03 13:27:07 -07:00

parent 9de15bda37

commit ada2411d4f

1 changed files with 11 additions and 0 deletions

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drivers/net/ethernet/intel/fm10k/fm10k_iov.c

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