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| author | Alexander Lobakin <[email protected]> | 2021-12-08 14:06:57 +0000 |
|---|---|---|
| committer | Tony Nguyen <[email protected]> | 2022-01-31 17:43:35 +0000 |
| commit | dc44572d195e10ec41a03e09b3b5addab4af5cea (patch) | |
| tree | de7d43407f1a4805d441bee6db16758fe63dca15 /drivers/net/ethernet/intel/igc | |
| parent | ice: respect metadata in legacy-rx/ice_construct_skb() (diff) | |
| download | kernel-dc44572d195e10ec41a03e09b3b5addab4af5cea.tar.gz kernel-dc44572d195e10ec41a03e09b3b5addab4af5cea.zip | |
ice: don't reserve excessive XDP_PACKET_HEADROOM on XSK Rx to skb
{__,}napi_alloc_skb() allocates and reserves additional NET_SKB_PAD
+ NET_IP_ALIGN for any skb.
OTOH, ice_construct_skb_zc() currently allocates and reserves
additional `xdp->data - xdp->data_hard_start`, which is
XDP_PACKET_HEADROOM for XSK frames.
There's no need for that at all as the frame is post-XDP and will
go only to the networking stack core.
Pass the size of the actual data only to __napi_alloc_skb() and
don't reserve anything. This will give enough headroom for stack
processing.
Fixes: 2d4238f55697 ("ice: Add support for AF_XDP")
Signed-off-by: Alexander Lobakin <[email protected]>
Reviewed-by: Michal Swiatkowski <[email protected]>
Tested-by: Kiran Bhandare <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/igc')
0 files changed, 0 insertions, 0 deletions