Commit a4c493fe authored Jul 29, 2020 by Jesse Brandeburg Committed by Tony Nguyen Aug 01, 2020

ice: remove page_reuse statistic



The page reuse statistic wasn't even being displayed to the user, even
though the driver counted it. Don't waste the struct space and hot-path
cycles since the driver doesn't display it.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

parent cdedbab9

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

+0 −2

Original line number	Diff line number	Diff line
		@@ -632,7 +632,6 @@ ice_alloc_mapped_page(struct ice_ring rx_ring, struct ice_rx_buf bi)

		/* since we are recycling buffers we should seldom need to alloc */
		if (likely(page)) {
		rx_ring->rx_stats.page_reuse_count++;
		return true;
		}

		@@ -1033,7 +1032,6 @@ static void ice_put_rx_buf(struct ice_ring rx_ring, struct ice_rx_buf rx_buf)
		if (ice_can_reuse_rx_page(rx_buf)) {
		/* hand second half of page back to the ring */
		ice_reuse_rx_page(rx_ring, rx_buf);
		rx_ring->rx_stats.page_reuse_count++;
		} else {
		/* we are not reusing the buffer so unmap it */
		dma_unmap_page_attrs(rx_ring->dev, rx_buf->dma,

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

+0 −1

Original line number	Diff line number	Diff line
		@@ -193,7 +193,6 @@ struct ice_rxq_stats {
		u64 non_eop_descs;
		u64 alloc_page_failed;
		u64 alloc_buf_failed;
		u64 page_reuse_count;
		};

		/* this enum matches hardware bits and is meant to be used by DYN_CTLN