bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-27 19:12:29 -04:00
Code Issues Packages Projects Releases Wiki Activity

ice: Add support for tunnel offloads

Browse Source 
Create a boost TCAM entry for each tunnel port in order to get a tunnel
PTYPE. Update netdev feature flags and implement the appropriate logic to
get and set values for hardware offloads.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Tony Nguyen
2020-05-06 09:32:30 -07:00
committed by Jeff Kirsher
parent f45a645fa6
commit a4e82a81f5
14 changed files with 867 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/net/ethernet/intel/ice/ice_txrx_lib.c
View File

@@ -84,12 +84,17 @@ ice_rx_csum(struct ice_ring *ring, struct sk_buff *skb,
union ice_32b_rx_flex_desc *rx_desc, u8 ptype)
{
struct ice_rx_ptype_decoded decoded;
u32 rx_error, rx_status;
u16 rx_error, rx_status;
u16 rx_stat_err1;
bool ipv4, ipv6;
rx_status = le16_to_cpu(rx_desc->wb.status_error0);
rx_error = rx_status;
rx_error = rx_status & (BIT(ICE_RX_FLEX_DESC_STATUS0_XSUM_IPE_S) |
BIT(ICE_RX_FLEX_DESC_STATUS0_XSUM_L4E_S) |
BIT(ICE_RX_FLEX_DESC_STATUS0_XSUM_EIPE_S) |
BIT(ICE_RX_FLEX_DESC_STATUS0_XSUM_EUDPE_S));
rx_stat_err1 = le16_to_cpu(rx_desc->wb.status_error1);
decoded = ice_decode_rx_desc_ptype(ptype);
/* Start with CHECKSUM_NONE and by default csum_level = 0 */
@@ -125,6 +130,18 @@ ice_rx_csum(struct ice_ring *ring, struct sk_buff *skb,
if (rx_error & BIT(ICE_RX_FLEX_DESC_STATUS0_XSUM_L4E_S))
goto checksum_fail;
/* check for outer UDP checksum error in tunneled packets */
if ((rx_stat_err1 & BIT(ICE_RX_FLEX_DESC_STATUS1_NAT_S)) &&
(rx_error & BIT(ICE_RX_FLEX_DESC_STATUS0_XSUM_EUDPE_S)))
goto checksum_fail;
/* If there is an outer header present that might contain a checksum
* we need to bump the checksum level by 1 to reflect the fact that
* we are indicating we validated the inner checksum.
*/
if (decoded.tunnel_type >= ICE_RX_PTYPE_TUNNEL_IP_GRENAT)
skb->csum_level = 1;
/* Only report checksum unnecessary for TCP, UDP, or SCTP */
switch (decoded.inner_prot) {
case ICE_RX_PTYPE_INNER_PROT_TCP: