linux-kernel - [PATCH] net: eth: altera: set rx and tx ring size before init

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Message-Id: <20220531025117.13822-1-mun.yew.tham@intel.com>
Date:   Tue, 31 May 2022 10:51:17 +0800
From:   "Tham, Mun Yew" <mun.yew.tham@...el.com>
To:     Joyce Ooi <joyce.ooi@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tham@...r.kernel.org, Mun Yew <mun.yew.tham@...el.com>
Subject: [PATCH] net: eth: altera: set rx and tx ring size before init_dma call

It is more appropriate to set the rx and tx ring size before calling
the init function for the dma.

Signed-off-by: Tham, Mun Yew <mun.yew.tham@...el.com>
---
 drivers/net/ethernet/altera/altera_tse_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 1c00d719e5d7..ebfddad05e7e 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -1152,6 +1152,10 @@ static int tse_open(struct net_device *dev)
 	int i;
 	unsigned long int flags;
 
+	/* set tx and rx ring size */
+	priv->rx_ring_size = dma_rx_num;
+	priv->tx_ring_size = dma_tx_num;
+
 	/* Reset and configure TSE MAC and probe associated PHY */
 	ret = priv->dmaops->init_dma(priv);
 	if (ret != 0) {
@@ -1194,8 +1198,6 @@ static int tse_open(struct net_device *dev)
 	priv->dmaops->reset_dma(priv);
 
 	/* Create and initialize the TX/RX descriptors chains. */
-	priv->rx_ring_size = dma_rx_num;
-	priv->tx_ring_size = dma_tx_num;
 	ret = alloc_init_skbufs(priv);
 	if (ret) {
 		netdev_err(dev, "DMA descriptors initialization failed\n");
-- 
2.26.2