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authorJon Cooper <jcooper@solarflare.com>2017-02-08 16:51:02 +0000
committerDavid S. Miller <davem@davemloft.net>2017-02-09 16:47:53 -0500
commitda50ae2eae96e00e0188b24014efc10161e60925 (patch)
treec42954a9b66dbdbd47e6226dcce73a907a05414a
parenta0ee3541483767e82bf26b8269693eec25c01cba (diff)
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 <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/sfc/ef10.c23
-rw-r--r--drivers/net/ethernet/sfc/net_driver.h1
-rw-r--r--drivers/net/ethernet/sfc/rx.c5
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);