From: Joshua Washington <joshwash@google.com>
Date: Fri, 21 Mar 2025 00:29:05 +0000 (+0000)
Subject: gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics
X-Git-Tag: v6.15-rc1~160^2~5^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c2b900958535a6b958f86245e9afca2df59329bd;p=thirdparty%2Flinux.git

gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics

These statistics pollute the hotpath and do not have any real-world use
or meaning.

Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Joshua Washington <joshwash@google.com>
Signed-off-by: Harshitha Ramamurthy <hramamurthy@google.com>
Link: https://patch.msgid.link/20250321002910.1343422-2-hramamurthy@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h
index 483c43bab3a99..2064e592dfdd3 100644
--- a/drivers/net/ethernet/google/gve/gve.h
+++ b/drivers/net/ethernet/google/gve/gve.h
@@ -613,8 +613,6 @@ struct gve_tx_ring {
 	dma_addr_t complq_bus_dqo; /* dma address of the dqo.compl_ring */
 	struct u64_stats_sync statss; /* sync stats for 32bit archs */
 	struct xsk_buff_pool *xsk_pool;
-	u32 xdp_xsk_wakeup;
-	u32 xdp_xsk_done;
 	u64 xdp_xsk_sent;
 	u64 xdp_xmit;
 	u64 xdp_xmit_errors;
diff --git a/drivers/net/ethernet/google/gve/gve_ethtool.c b/drivers/net/ethernet/google/gve/gve_ethtool.c
index a572f1e059342..bc59b5b4235a0 100644
--- a/drivers/net/ethernet/google/gve/gve_ethtool.c
+++ b/drivers/net/ethernet/google/gve/gve_ethtool.c
@@ -63,8 +63,8 @@ static const char gve_gstrings_rx_stats[][ETH_GSTRING_LEN] = {
 static const char gve_gstrings_tx_stats[][ETH_GSTRING_LEN] = {
 	"tx_posted_desc[%u]", "tx_completed_desc[%u]", "tx_consumed_desc[%u]", "tx_bytes[%u]",
 	"tx_wake[%u]", "tx_stop[%u]", "tx_event_counter[%u]",
-	"tx_dma_mapping_error[%u]", "tx_xsk_wakeup[%u]",
-	"tx_xsk_done[%u]", "tx_xsk_sent[%u]", "tx_xdp_xmit[%u]", "tx_xdp_xmit_errors[%u]"
+	"tx_dma_mapping_error[%u]",
+	"tx_xsk_sent[%u]", "tx_xdp_xmit[%u]", "tx_xdp_xmit_errors[%u]"
 };
 
 static const char gve_gstrings_adminq_stats[][ETH_GSTRING_LEN] = {
@@ -417,9 +417,7 @@ gve_get_ethtool_stats(struct net_device *netdev,
 					data[i++] = value;
 				}
 			}
-			/* XDP xsk counters */
-			data[i++] = tx->xdp_xsk_wakeup;
-			data[i++] = tx->xdp_xsk_done;
+			/* XDP counters */
 			do {
 				start = u64_stats_fetch_begin(&priv->tx[ring].statss);
 				data[i] = tx->xdp_xsk_sent;
diff --git a/drivers/net/ethernet/google/gve/gve_tx.c b/drivers/net/ethernet/google/gve/gve_tx.c
index 4350ebd9c2bd9..c8c067e180598 100644
--- a/drivers/net/ethernet/google/gve/gve_tx.c
+++ b/drivers/net/ethernet/google/gve/gve_tx.c
@@ -959,14 +959,10 @@ static int gve_xsk_tx(struct gve_priv *priv, struct gve_tx_ring *tx,
 
 	spin_lock(&tx->xdp_lock);
 	while (sent < budget) {
-		if (!gve_can_tx(tx, GVE_TX_START_THRESH))
+		if (!gve_can_tx(tx, GVE_TX_START_THRESH) ||
+		    !xsk_tx_peek_desc(tx->xsk_pool, &desc))
 			goto out;
 
-		if (!xsk_tx_peek_desc(tx->xsk_pool, &desc)) {
-			tx->xdp_xsk_done = tx->xdp_xsk_wakeup;
-			goto out;
-		}
-
 		data = xsk_buff_raw_get_data(tx->xsk_pool, desc.addr);
 		nsegs = gve_tx_fill_xdp(priv, tx, data, desc.len, NULL, true);
 		tx->req += nsegs;