i40e: Redistribute queue vectors after DCB reconfiguration

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The queue vectors are originally distributed among the total
number of queues that are configured for a given VSI. The number
of queues that are configured for a VSI depends on the number of
TCs that are enabled for the VSI at VSI setup/creation time.

But, the total number of queues that are configured for a VSI may
change based on change in the total number of TCs enabled as a
result of change in DCB configuration based on DCBX.

Hence, it is required for the queue vectors to be redistributed
when the total queues that are configured for a given VSI changes.

Without redistributing the vectors the queues that are configured
for the newly enabled TCs may not be able to do any Tx/Rx.

Change-ID: I4e780903db019e6199c7ce43627cef22c916acfe
Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Neerav Parikh 2014-04-01 07:11:47 +00:00 • committed by Jeff Kirsher

parent d2466013bb

commit 0672a09183

1 changed files with 2 additions and 0 deletions

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

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