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| author |   Björn Töpel <bjorn.topel@intel.com> | 2019-02-12 09:52:05 +0100 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-04-01 11:32:48 -0700 |
| commit | 44ddd4f1709249dd1779dda7c907668a0b9ef833 (patch) | |
| tree | 533f3d9dbef825a3bf4f54b745b883f23c8c8429 /drivers/net/ethernet/intel/i40e/i40e.h | |
| parent | i40e: move i40e_xsk_umem function (diff) | |
| download | linux-dev-44ddd4f1709249dd1779dda7c907668a0b9ef833.tar.xz linux-dev-44ddd4f1709249dd1779dda7c907668a0b9ef833.zip | |
i40e: add tracking of AF_XDP ZC state for each queue pair
In commit f3fef2b6e1cc ("i40e: Remove umem from VSI") a regression was
introduced; When the VSI was reset, the setup code would try to enable
AF_XDP ZC unconditionally (as long as there was a umem placed in the
netdev._rx struct). Here, we add a bitmap to the VSI that tracks if a
certain queue pair has been "zero-copy enabled" via the ndo_bpf. The
bitmap is used in i40e_xsk_umem, and enables zero-copy if and only if
XDP is enabled, the corresponding qid in the bitmap is set and the
umem is non-NULL.
Fixes: f3fef2b6e1cc ("i40e: Remove umem from VSI")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index cc583ad5236b..d3cc3427caad 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -790,6 +790,8 @@ struct i40e_vsi { /* VSI specific handlers */ irqreturn_t (*irq_handler)(int irq, void *data); + + unsigned long *af_xdp_zc_qps; /* tracks AF_XDP ZC enabled qps */ } ____cacheline_internodealigned_in_smp; struct i40e_netdev_priv { |