From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Wed, 29 Jul 2020 17:19:13 -0700
Subject: ice: remove page_reuse statistic
Patch-mainline: v5.9-rc1
Git-commit: a4c493fea5b7c65fbe0e1bea68007c6c27dd9f75
References: jsc#SLE-12878
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/ice/ice_txrx.c | 2 --
drivers/net/ethernet/intel/ice/ice_txrx.h | 1 -
2 files changed, 3 deletions(-)
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -632,7 +632,6 @@ ice_alloc_mapped_page(struct ice_ring *r
/* 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_ri
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,
--- a/drivers/net/ethernet/intel/ice/ice_txrx.h
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.h
@@ -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