linux_dsm_epyc7002/drivers/net/ethernet/intel
Brett Creeley 72ecb896e4 ice: Use GLINT_DYN_CTL to disable VF's interrupts
Currently in ice_free_vf_res() we are writing to the VFINT_DYN_CTLN
register in the PF's function space to disable all VF's interrupts. This
is incorrect because this register is only for use in the VF's function
space. This becomes obvious when seeing that the valid indices used for
the VFINT_DYN_CTLN register is from 0-63, which is the maximum number of
interrupts for a VF (not including the OICR interrupt). Fix this by
writing to the GLINT_DYN_CTL register for each VF. We can do this
because we keep track of each VF's first_vector_idx inside of the PF's
function space and the number of interrupts given to each VF.

Also in ice_free_vfs() we were disabling Rx/Tx queues after calling
pci_disable_sriov(). One part of disabling the Tx queues causes the PF
driver to trigger a software interrupt, which causes the VF's napi
routine to run. This doesn't currently work because pci_disable_sriov()
causes iavf_remove() to be called which disables interrupts. Fix this by
disabling Rx/Tx queues prior to pci_disable_sriov().

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-05-29 22:49:06 -07:00
..
e1000 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
e1000e e1000e: start network tx queue only when link is up 2019-05-28 16:08:43 -07:00
fm10k Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
i40e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
iavf Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
ice ice: Use GLINT_DYN_CTL to disable VF's interrupts 2019-05-29 22:49:06 -07:00
igb igb: mark expected switch fall-through 2019-05-28 15:52:37 -07:00
igbvf drivers: Remove explicit invocations of mmiowb() 2019-04-08 12:01:02 +01:00
igc igc: Cleanup the redundant code 2019-05-28 16:15:55 -07:00
ixgb cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
ixgbe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
ixgbevf net: pass net_device argument to the eth_get_headlen 2019-04-23 18:36:34 +02:00
e100.c intel: correct return from set features callback 2019-03-19 14:18:49 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile igc: Add skeletal frame for Intel(R) 2.5G Ethernet Controller support 2018-10-17 12:14:54 -07:00