From 1629dd4f763cc15ac3b2711ac65dab153b738c6d Mon Sep 17 00:00:00 2001 From: Rafal Ozieblo Date: Wed, 16 Nov 2016 10:02:34 +0000 Subject: cadence: Add LSO support. New Cadence GEM hardware support Large Segment Offload (LSO): TCP segmentation offload (TSO) as well as UDP fragmentation offload (UFO). Support for those features was added to the driver. Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/net/ethernet/cadence/macb.h') diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index 1216950c97d1..d67adad67be1 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -382,6 +382,10 @@ #define GEM_TX_PKT_BUFF_OFFSET 21 #define GEM_TX_PKT_BUFF_SIZE 1 +/* Bitfields in DCFG6. */ +#define GEM_PBUF_LSO_OFFSET 27 +#define GEM_PBUF_LSO_SIZE 1 + /* Constants for CLK */ #define MACB_CLK_DIV8 0 #define MACB_CLK_DIV16 1 @@ -414,6 +418,10 @@ #define MACB_CAPS_SG_DISABLED 0x40000000 #define MACB_CAPS_MACB_IS_GEM 0x80000000 +/* LSO settings */ +#define MACB_LSO_UFO_ENABLE 0x01 +#define MACB_LSO_TSO_ENABLE 0x02 + /* Bit manipulation macros */ #define MACB_BIT(name) \ (1 << MACB_##name##_OFFSET) @@ -545,6 +553,12 @@ struct macb_dma_desc { #define MACB_TX_LAST_SIZE 1 #define MACB_TX_NOCRC_OFFSET 16 #define MACB_TX_NOCRC_SIZE 1 +#define MACB_MSS_MFS_OFFSET 16 +#define MACB_MSS_MFS_SIZE 14 +#define MACB_TX_LSO_OFFSET 17 +#define MACB_TX_LSO_SIZE 2 +#define MACB_TX_TCP_SEQ_SRC_OFFSET 19 +#define MACB_TX_TCP_SEQ_SRC_SIZE 1 #define MACB_TX_BUF_EXHAUSTED_OFFSET 27 #define MACB_TX_BUF_EXHAUSTED_SIZE 1 #define MACB_TX_UNDERRUN_OFFSET 28 -- cgit v1.2.3