i40e: eliminate division in napi_poll data path

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Eliminate a division in the napi_poll data path. This division is
executed even though it is only needed in the rare case when there are
not enough interrupt lines so they have to be shared between queue
pairs. Instead, just test for this case and only execute the division
if needed. The code has been lifted from the ice driver.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

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Magnus Karlsson 2020-06-23 11:44:17 +02:00 • committed by Tony Nguyen

parent 5574ff7b7b

commit 4b5539c01d

1 changed files with 10 additions and 4 deletions

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drivers/net/ethernet/intel/i40e/i40e_txrx.c

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