From da50ae2eae96e00e0188b24014efc10161e60925 Mon Sep 17 00:00:00 2001 From: Jon Cooper Date: Wed, 8 Feb 2017 16:51:02 +0000 Subject: [PATCH] sfc: set csum_level for encapsulated packets Set the csum_level for encapsulated packets where the encapsulation type, l3 class and l4 class are sets that need it. Signed-off-by: Edward Cree Signed-off-by: David S. Miller --- drivers/net/ethernet/sfc/ef10.c | 23 ++++++++++++++++++++--- drivers/net/ethernet/sfc/net_driver.h | 1 + drivers/net/ethernet/sfc/rx.c | 5 ++++- 3 files changed, 25 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index fd1008daf1e3..c738b113b0ac 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -3339,9 +3339,26 @@ static int efx_ef10_handle_rx_event(struct efx_channel *channel, rx_l3_class, rx_l4_class, rx_encap_hdr, event); } else { - if (rx_l4_class == ESE_DZ_L4_CLASS_TCP || - rx_l4_class == ESE_DZ_L4_CLASS_UDP) - flags |= EFX_RX_PKT_CSUMMED; + bool tcpudp = rx_l4_class == ESE_DZ_L4_CLASS_TCP || + rx_l4_class == ESE_DZ_L4_CLASS_UDP; + + switch (rx_encap_hdr) { + case ESE_EZ_ENCAP_HDR_VXLAN: /* VxLAN or GENEVE */ + flags |= EFX_RX_PKT_CSUMMED; /* outer UDP csum */ + if (tcpudp) + flags |= EFX_RX_PKT_CSUM_LEVEL; /* inner L4 */ + break; + case ESE_EZ_ENCAP_HDR_GRE: + case ESE_EZ_ENCAP_HDR_NONE: + if (tcpudp) + flags |= EFX_RX_PKT_CSUMMED; + break; + default: + netdev_WARN(efx->net_dev, + "unknown encapsulation type: event=" + EFX_QWORD_FMT "\n", + EFX_QWORD_VAL(*event)); + } } if (rx_l4_class == ESE_DZ_L4_CLASS_TCP) diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 3b1511092781..e64e933c5bb3 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -307,6 +307,7 @@ struct efx_rx_buffer { #define EFX_RX_PKT_DISCARD 0x0004 #define EFX_RX_PKT_TCP 0x0040 #define EFX_RX_PKT_PREFIX_LEN 0x0080 /* length is in prefix only */ +#define EFX_RX_PKT_CSUM_LEVEL 0x0200 /** * struct efx_rx_page_state - Page-based rx buffer state diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index 31587f4066ab..42443f434569 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -434,6 +434,7 @@ efx_rx_packet_gro(struct efx_channel *channel, struct efx_rx_buffer *rx_buf, PKT_HASH_TYPE_L3); skb->ip_summed = ((rx_buf->flags & EFX_RX_PKT_CSUMMED) ? CHECKSUM_UNNECESSARY : CHECKSUM_NONE); + skb->csum_level = !!(rx_buf->flags & EFX_RX_PKT_CSUM_LEVEL); for (;;) { skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, @@ -621,8 +622,10 @@ static void efx_rx_deliver(struct efx_channel *channel, u8 *eh, /* Set the SKB flags */ skb_checksum_none_assert(skb); - if (likely(rx_buf->flags & EFX_RX_PKT_CSUMMED)) + if (likely(rx_buf->flags & EFX_RX_PKT_CSUMMED)) { skb->ip_summed = CHECKSUM_UNNECESSARY; + skb->csum_level = !!(rx_buf->flags & EFX_RX_PKT_CSUM_LEVEL); + } efx_rx_skb_attach_timestamp(channel, skb); -- 2.20.1