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[net-next,9/9] net: rswitch: Allow jumbo frames

Message ID 20231127115334.3670790-10-yoshihiro.shimoda.uh@renesas.com (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show
Series net: rswitch: Add jumbo frames support | expand

Commit Message

Yoshihiro Shimoda Nov. 27, 2023, 11:53 a.m. UTC 
Allow jumbo frames by changing maximum MTU size and number of RX queues.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 drivers/net/ethernet/renesas/rswitch.c | 2 ++
 drivers/net/ethernet/renesas/rswitch.h | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c
index c5e3ee8f82bc..f55e15987dce 100644
--- a/drivers/net/ethernet/renesas/rswitch.c
+++ b/drivers/net/ethernet/renesas/rswitch.c
@@ -1882,6 +1882,8 @@  static int rswitch_device_alloc(struct rswitch_private *priv, unsigned int index
 	snprintf(ndev->name, IFNAMSIZ, "tsn%d", index);
 	ndev->netdev_ops = &rswitch_netdev_ops;
 	ndev->ethtool_ops = &rswitch_ethtool_ops;
+	ndev->max_mtu = RSWITCH_MAX_MTU;
+	ndev->min_mtu = ETH_MIN_MTU;
 
 	netif_napi_add(ndev, &rdev->napi, rswitch_poll);
 
diff --git a/drivers/net/ethernet/renesas/rswitch.h b/drivers/net/ethernet/renesas/rswitch.h
index 4252677e2a55..72e3ff596d31 100644
--- a/drivers/net/ethernet/renesas/rswitch.h
+++ b/drivers/net/ethernet/renesas/rswitch.h
@@ -26,9 +26,10 @@ 
 		else
 
 #define TX_RING_SIZE		1024
-#define RX_RING_SIZE		1024
+#define RX_RING_SIZE		4096
 #define TS_RING_SIZE		(TX_RING_SIZE * RSWITCH_NUM_PORTS)
 
+#define RSWITCH_MAX_MTU		9600
 #define RSWITCH_HEADROOM	(NET_SKB_PAD + NET_IP_ALIGN)
 #define RSWITCH_DESC_BUF_SIZE	2048
 #define RSWITCH_TAILROOM	SKB_DATA_ALIGN(sizeof(struct skb_shared_info))