linux/drivers/net/ethernet/intel/i40evf
Alexander Duyck a6cab7d7f9 i40evf: Drop i40evf_fire_sw_int as it is prone to races
Having the interrupts firing while we are polling causes extra overhead and
isn't needed for most systems out there. If an interrupt is lost us
experiencing a 2s latency spike before recovering is still not acceptable
and masks the issue. We are better off just identifying systems that lose
interrupts and instead enable workarounds for those systems.

To that end I am dropping the code that was strobing the interrupts as
there is a narrow window where having them enabled can actually cause
race issues anyway where a few stray packets might get misses if the
interrupt is re-enabled and fires before we call napi_complete.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-10 12:41:21 -08:00
..
i40e_adminq_cmd.h i40e: Enable cloud filters via tc-flower 2017-10-31 11:13:49 -07:00
i40e_adminq.c i40e: reduce wait time for adminq command completion 2017-04-19 17:38:25 -07:00
i40e_adminq.h i40e: reduce wait time for adminq command completion 2017-04-19 17:38:25 -07:00
i40e_alloc.h
i40e_common.c i40e: Add support for 'ethtool -m' 2017-10-02 12:46:35 -07:00
i40e_devids.h i40evf: Add support for Adaptive Virtual Function 2017-06-01 14:30:02 -07:00
i40e_hmc.h
i40e_lan_hmc.h
i40e_osdep.h i40evf: remove unnecessary __packed 2017-07-26 03:25:21 -07:00
i40e_prototype.h i40e: Add support for 'ethtool -m' 2017-10-02 12:46:35 -07:00
i40e_register.h
i40e_status.h
i40e_trace.h i40e/i40evf: Add tracepoints 2017-04-19 16:47:31 -07:00
i40e_txrx.c i40e/i40evf: Account for frags split over multiple descriptors in check linearize 2018-01-03 08:47:29 -08:00
i40e_txrx.h i40e/i40evf: bundle more descriptors when allocating buffers 2017-10-09 14:27:42 -07:00
i40e_type.h i40e: Retry AQC GetPhyAbilities to overcome I2CRead hangs 2017-10-09 14:32:18 -07:00
i40evf_client.c i40evf: fix client notify of l2 params 2017-11-21 23:37:58 -08:00
i40evf_client.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i40evf_ethtool.c i40evf: Enable VF to request an alternate queue allocation 2017-10-02 12:46:35 -07:00
i40evf_main.c i40evf: Drop i40evf_fire_sw_int as it is prone to races 2018-01-10 12:41:21 -08:00
i40evf_virtchnl.c i40evf: Clean-up flags for promisc mode to avoid high polling rate 2018-01-10 12:41:21 -08:00
i40evf.h i40evf: use spinlock to protect (mac|vlan)_filter_list 2018-01-10 12:41:21 -08:00
Makefile i40e/i40evf: Add tracepoints 2017-04-19 16:47:31 -07:00