ice: remove af_xdp_zc_qps bitmap

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Referenced commit has introduced a bitmap to distinguish between ZC and
copy-mode AF_XDP queues, because xsk_get_pool_from_qid() does not do this
for us.

The bitmap would be especially useful when restoring previous state after
rebuild, if only it was not reallocated in the process. This leads to e.g.
xdpsock dying after changing number of queues.

Instead of preserving the bitmap during the rebuild, remove it completely
and distinguish between ZC and copy-mode queues based on the presence of
a device associated with the pool.

Fixes: e102db780e ("ice: track AF_XDP ZC enabled queues in bitmap")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20240603-net-2024-05-30-intel-net-fixes-v2-3-e3563aa89b0c@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Larysa Zaremba 2024-06-03 14:42:32 -07:00 • committed by Jakub Kicinski

parent cfa747a66e

commit adbf5a4234

3 changed files with 27 additions and 26 deletions

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32

drivers/net/ethernet/intel/ice/ice.h

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8

drivers/net/ethernet/intel/ice/ice_lib.c

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13

drivers/net/ethernet/intel/ice/ice_xsk.c

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