From de074e7a7e20f04023c8fdcb0ed6e356f699ec4b Mon Sep 17 00:00:00 2001
From: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Date: Mon, 26 Nov 2018 09:33:28 +0000
Subject: [PATCH] net: usb: aqc111: Add support for TSO
Git-commit: de074e7a7e20f04023c8fdcb0ed6e356f699ec4b
Patch-mainline: v5.0
References: jsc#SLE-6001
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/net/usb/aqc111.c | 6 ++++++
drivers/net/usb/aqc111.h | 8 ++++++--
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c
index 7b69d0a5fc4c..fce2a4f65122 100644
--- a/drivers/net/usb/aqc111.c
+++ b/drivers/net/usb/aqc111.c
@@ -395,6 +395,8 @@ static int aqc111_bind(struct usbnet *dev, struct usb_interface *intf)
dev->net->hw_features |= AQ_SUPPORT_HW_FEATURE;
dev->net->features |= AQ_SUPPORT_FEATURE;
+ netif_set_gso_max_size(dev->net, 65535);
+
aqc111_read_fw_version(dev, aqc111_data);
aqc111_data->autoneg = AUTONEG_ENABLE;
aqc111_data->advertised_speed = (usb_speed == USB_SPEED_SUPER) ?
@@ -832,6 +834,10 @@ static struct sk_buff *aqc111_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
/*Length of actual data*/
tx_desc |= skb->len & AQ_TX_DESC_LEN_MASK;
+ /* TSO MSS */
+ tx_desc |= ((u64)(skb_shinfo(skb)->gso_size & AQ_TX_DESC_MSS_MASK)) <<
+ AQ_TX_DESC_MSS_SHIFT;
+
headroom = (skb->len + sizeof(tx_desc)) % 8;
if (headroom != 0)
padding_size = 8 - headroom;
diff --git a/drivers/net/usb/aqc111.h b/drivers/net/usb/aqc111.h
index 165cdb8b022c..a7a333914461 100644
--- a/drivers/net/usb/aqc111.h
+++ b/drivers/net/usb/aqc111.h
@@ -22,10 +22,12 @@
/* Feature. ********************************************/
#define AQ_SUPPORT_FEATURE (NETIF_F_SG | NETIF_F_IP_CSUM |\
- NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM)
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |\
+ NETIF_F_TSO)
#define AQ_SUPPORT_HW_FEATURE (NETIF_F_SG | NETIF_F_IP_CSUM |\
- NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM)
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |\
+ NETIF_F_TSO)
/* SFR Reg. ********************************************/
@@ -162,6 +164,8 @@ struct aqc111_data {
/* TX Descriptor */
#define AQ_TX_DESC_LEN_MASK 0x1FFFFF
#define AQ_TX_DESC_DROP_PADD BIT(28)
+#define AQ_TX_DESC_MSS_MASK 0x7FFF
+#define AQ_TX_DESC_MSS_SHIFT 0x20
#define AQ_RX_HW_PAD 0x02
--
2.16.4