[v3,net-next,13/21] net: usb: aqc111: Add support for TSO
From: Igor Russkikh <hidden>
Date: 2018-11-21 10:13:48
Also in:
netdev
Subsystem:
networking drivers, the rest, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Dmitry Bezrukov <redacted> Signed-off-by: Dmitry Bezrukov <redacted> Signed-off-by: Igor Russkikh <redacted> --- drivers/net/usb/aqc111.c | 4 ++++ drivers/net/usb/aqc111.h | 8 ++++++-- 2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c
index 36d0da6efbed..4bb493c7224f 100644
--- a/drivers/net/usb/aqc111.c
+++ b/drivers/net/usb/aqc111.c@@ -832,6 +832,10 @@ 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