linux-kernel - [PATCH net-next v2] sfc: siena: eliminate xdp_rxq_info

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Message-ID: <20250628051033.51133-1-wangfushuai@baidu.com>
Date: Sat, 28 Jun 2025 13:10:33 +0800
From: Fushuai Wang <wangfushuai@...du.com>
To: <ecree.xilinx@...il.com>, <andrew+netdev@...n.ch>, <davem@...emloft.net>,
	<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>
CC: <netdev@...r.kernel.org>, <linux-net-drivers@....com>,
	<linux-kernel@...r.kernel.org>, Fushuai Wang <wangfushuai@...du.com>
Subject: [PATCH net-next v2] sfc: siena: eliminate xdp_rxq_info_valid using XDP base API

Commit d48523cb88e0 ("sfc: Copy shared files needed for Siena (part 2)")
use xdp_rxq_info_valid to track failures of xdp_rxq_info_reg().
However, this driver-maintained state becomes redundant since the XDP
framework already provides xdp_rxq_info_is_reg() for checking registration
status.

Signed-off-by: Fushuai Wang <wangfushuai@...du.com>
---
 drivers/net/ethernet/sfc/siena/net_driver.h | 2 --
 drivers/net/ethernet/sfc/siena/rx_common.c  | 6 +-----
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/sfc/siena/net_driver.h b/drivers/net/ethernet/sfc/siena/net_driver.h
index 2be3bad3c993..4cf556782133 100644
--- a/drivers/net/ethernet/sfc/siena/net_driver.h
+++ b/drivers/net/ethernet/sfc/siena/net_driver.h
@@ -384,7 +384,6 @@ struct efx_rx_page_state {
  * @recycle_count: RX buffer recycle counter.
  * @slow_fill: Timer used to defer efx_nic_generate_fill_event().
  * @xdp_rxq_info: XDP specific RX queue information.
- * @xdp_rxq_info_valid: Is xdp_rxq_info valid data?.
  */
 struct efx_rx_queue {
 	struct efx_nic *efx;
@@ -417,7 +416,6 @@ struct efx_rx_queue {
 	/* Statistics to supplement MAC stats */
 	unsigned long rx_packets;
 	struct xdp_rxq_info xdp_rxq_info;
-	bool xdp_rxq_info_valid;
 };
 
 enum efx_sync_events_state {
diff --git a/drivers/net/ethernet/sfc/siena/rx_common.c b/drivers/net/ethernet/sfc/siena/rx_common.c
index 98d27174015d..4ae09505e417 100644
--- a/drivers/net/ethernet/sfc/siena/rx_common.c
+++ b/drivers/net/ethernet/sfc/siena/rx_common.c
@@ -268,8 +268,6 @@ void efx_siena_init_rx_queue(struct efx_rx_queue *rx_queue)
 			  "Failure to initialise XDP queue information rc=%d\n",
 			  rc);
 		efx->xdp_rxq_info_failed = true;
-	} else {
-		rx_queue->xdp_rxq_info_valid = true;
 	}
 
 	/* Set up RX descriptor ring */
@@ -299,10 +297,8 @@ void efx_siena_fini_rx_queue(struct efx_rx_queue *rx_queue)
 
 	efx_fini_rx_recycle_ring(rx_queue);
 
-	if (rx_queue->xdp_rxq_info_valid)
+	if (xdp_rxq_info_is_reg(&rx_queue->xdp_rxq_info))
 		xdp_rxq_info_unreg(&rx_queue->xdp_rxq_info);
-
-	rx_queue->xdp_rxq_info_valid = false;
 }
 
 void efx_siena_remove_rx_queue(struct efx_rx_queue *rx_queue)
-- 
2.36.1