ice: put Rx buffers after being done with current frame

Introduce a new helper ice_put_rx_mbuf() that will go through gathered
frags from current frame and will call ice_put_rx_buf() on them. Current
logic that was supposed to simplify and optimize the driver where we go
through a batch of all buffers processed in current NAPI instance turned
out to be broken for jumbo frames and very heavy load that was coming
from both multi-thread iperf and nginx/wrk pair between server and
client. The delay introduced by approach that we are dropping is simply
too big and we need to take the decision regarding page
recycling/releasing as quick as we can.

While at it, address an error path of ice_add_xdp_frag() - we were
missing buffer putting from day 1 there.

As a nice side effect we get rid of annoying and repetitive three-liner:

	xdp->data = NULL;
	rx_ring->first_desc = ntc;
	rx_ring->nr_frags = 0;

by embedding it within introduced routine.

Fixes: 1dc1a7e7f410 ("ice: Centrallize Rx buffer recycling")
Reported-and-tested-by: Xu Du <[email protected]>
Reviewed-by: Przemek Kitszel <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Co-developed-by: Jacob Keller <[email protected]>
Signed-off-by: Jacob Keller <[email protected]>
Signed-off-by: Maciej Fijalkowski <[email protected]>
Tested-by: Chandan Kumar Rout <[email protected]> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <[email protected]>

0 files changed, 0 insertions, 0 deletions