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i40e/i40evf: always set the CLEARPBA flag when re-enabling interrupts
In the past we changed driver behavior to not clear the PBA when re-enabling interrupts. This change was motivated by the flawed belief that clearing the PBA would cause a lost interrupt if a receive interrupt occurred while interrupts were disabled. According to empirical testing this isn't the case. Additionally, the data sheet specifically says that we should set the CLEARPBA bit when re-enabling interrupts in a polling setup. This reverts commit 40d72a5 ("i40e/i40evf: don't lose interrupts") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jacob Keller
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Oct 9, 2017
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