[RFC bpf-next 07/23] ice: Support RX hash XDP hint

Larysa Zaremba
2023-08-24T19:34:17Z

RX hash XDP hint requests both hash value and type.
Type is XDP-specific, so we need a separate way to map
these values to the hardware ptypes, so create a lookup table.

Instead of creating a new long list, reuse contents
of ice_decode_rx_desc_ptype[] through preprocessor.

Current hash type enum does not contain ICMP packet type,
but ice devices support it, so also add a new type into core code.

Then use previously refactored code and create a function
that allows XDP code to read RX hash.

Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
---
.../net/ethernet/intel/ice/ice_lan_tx_rx.h | 412 +++++++++---------
drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 73 ++++
include/net/xdp.h | 3 +
3 files changed, 284 insertions(+), 204 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
index 89f986a75cc8..d384ddfcb83e 100644
--- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
+++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
@@ -673,6 +673,212 @@ struct ice_tlan_ctx {
* Use the enum ice_rx_l2_ptype to decode the packet type
* ENDIF
*/
+#define ICE_PTYPES \
+ /* L2 Packet types */ \
+ ICE_PTT_UNUSED_ENTRY(0), \
+ ICE_PTT(1, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2), \
+ ICE_PTT_UNUSED_ENTRY(2), \
+ ICE_PTT_UNUSED_ENTRY(3), \
+ ICE_PTT_UNUSED_ENTRY(4), \
+ ICE_PTT_UNUSED_ENTRY(5), \
+ ICE_PTT(6, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \
+ ICE_PTT(7, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \
+ ICE_PTT_UNUSED_ENTRY(8), \
+ ICE_PTT_UNUSED_ENTRY(9), \
+ ICE_PTT(10, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \
+ ICE_PTT(11, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \
+ ICE_PTT_UNUSED_ENTRY(12), \
+ ICE_PTT_UNUSED_ENTRY(13), \
+ ICE_PTT_UNUSED_ENTRY(14), \
+ ICE_PTT_UNUSED_ENTRY(15), \
+ ICE_PTT_UNUSED_ENTRY(16), \
+ ICE_PTT_UNUSED_ENTRY(17), \
+ ICE_PTT_UNUSED_ENTRY(18), \
+ ICE_PTT_UNUSED_ENTRY(19), \
+ ICE_PTT_UNUSED_ENTRY(20), \
+ ICE_PTT_UNUSED_ENTRY(21), \
+ \
+ /* Non Tunneled IPv4 */ \
+ ICE_PTT(22, IP, IPV4, FRG, NONE, NONE, NOF, NONE, PAY3), \
+ ICE_PTT(23, IP, IPV4, NOF, NONE, NONE, NOF, NONE, PAY3), \
+ ICE_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(25), \
+ ICE_PTT(26, IP, IPV4, NOF, NONE, NONE, NOF, TCP, PAY4), \
+ ICE_PTT(27, IP, IPV4, NOF, NONE, NONE, NOF, SCTP, PAY4), \
+ ICE_PTT(28, IP, IPV4, NOF, NONE, NONE, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 --> IPv4 */ \
+ ICE_PTT(29, IP, IPV4, NOF, IP_IP, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(30, IP, IPV4, NOF, IP_IP, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(32), \
+ ICE_PTT(33, IP, IPV4, NOF, IP_IP, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(34, IP, IPV4, NOF, IP_IP, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(35, IP, IPV4, NOF, IP_IP, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 --> IPv6 */ \
+ ICE_PTT(36, IP, IPV4, NOF, IP_IP, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(37, IP, IPV4, NOF, IP_IP, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(39), \
+ ICE_PTT(40, IP, IPV4, NOF, IP_IP, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(41, IP, IPV4, NOF, IP_IP, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(42, IP, IPV4, NOF, IP_IP, IPV6, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 --> GRE/NAT */ \
+ ICE_PTT(43, IP, IPV4, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3), \
+ \
+ /* IPv4 --> GRE/NAT --> IPv4 */ \
+ ICE_PTT(44, IP, IPV4, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(45, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(47), \
+ ICE_PTT(48, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(49, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(50, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 --> GRE/NAT --> IPv6 */ \
+ ICE_PTT(51, IP, IPV4, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(52, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(54), \
+ ICE_PTT(55, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(56, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(57, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 --> GRE/NAT --> MAC */ \
+ ICE_PTT(58, IP, IPV4, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3), \
+ \
+ /* IPv4 --> GRE/NAT --> MAC --> IPv4 */ \
+ ICE_PTT(59, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(60, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(62), \
+ ICE_PTT(63, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(64, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(65, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 --> GRE/NAT -> MAC --> IPv6 */ \
+ ICE_PTT(66, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(67, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(69), \
+ ICE_PTT(70, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(71, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(72, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 --> GRE/NAT --> MAC/VLAN */ \
+ ICE_PTT(73, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3), \
+ \
+ /* IPv4 ---> GRE/NAT -> MAC/VLAN --> IPv4 */ \
+ ICE_PTT(74, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(75, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(77), \
+ ICE_PTT(78, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(79, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(80, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv4 -> GRE/NAT -> MAC/VLAN --> IPv6 */ \
+ ICE_PTT(81, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(82, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(84), \
+ ICE_PTT(85, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(86, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(87, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4), \
+ \
+ /* Non Tunneled IPv6 */ \
+ ICE_PTT(88, IP, IPV6, FRG, NONE, NONE, NOF, NONE, PAY3), \
+ ICE_PTT(89, IP, IPV6, NOF, NONE, NONE, NOF, NONE, PAY3), \
+ ICE_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(91), \
+ ICE_PTT(92, IP, IPV6, NOF, NONE, NONE, NOF, TCP, PAY4), \
+ ICE_PTT(93, IP, IPV6, NOF, NONE, NONE, NOF, SCTP, PAY4), \
+ ICE_PTT(94, IP, IPV6, NOF, NONE, NONE, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> IPv4 */ \
+ ICE_PTT(95, IP, IPV6, NOF, IP_IP, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(96, IP, IPV6, NOF, IP_IP, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(97, IP, IPV6, NOF, IP_IP, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(98), \
+ ICE_PTT(99, IP, IPV6, NOF, IP_IP, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(100, IP, IPV6, NOF, IP_IP, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(101, IP, IPV6, NOF, IP_IP, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> IPv6 */ \
+ ICE_PTT(102, IP, IPV6, NOF, IP_IP, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(103, IP, IPV6, NOF, IP_IP, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(104, IP, IPV6, NOF, IP_IP, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(105), \
+ ICE_PTT(106, IP, IPV6, NOF, IP_IP, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(107, IP, IPV6, NOF, IP_IP, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(108, IP, IPV6, NOF, IP_IP, IPV6, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> GRE/NAT */ \
+ ICE_PTT(109, IP, IPV6, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3), \
+ \
+ /* IPv6 --> GRE/NAT -> IPv4 */ \
+ ICE_PTT(110, IP, IPV6, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(111, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(112, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(113), \
+ ICE_PTT(114, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(115, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(116, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> GRE/NAT -> IPv6 */ \
+ ICE_PTT(117, IP, IPV6, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(118, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(119, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(120), \
+ ICE_PTT(121, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(122, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(123, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> GRE/NAT -> MAC */ \
+ ICE_PTT(124, IP, IPV6, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3), \
+ \
+ /* IPv6 --> GRE/NAT -> MAC -> IPv4 */ \
+ ICE_PTT(125, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(126, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(127, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(128), \
+ ICE_PTT(129, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(130, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(131, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> GRE/NAT -> MAC -> IPv6 */ \
+ ICE_PTT(132, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(133, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(134, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(135), \
+ ICE_PTT(136, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(137, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(138, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> GRE/NAT -> MAC/VLAN */ \
+ ICE_PTT(139, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3), \
+ \
+ /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv4 */ \
+ ICE_PTT(140, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3), \
+ ICE_PTT(141, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3), \
+ ICE_PTT(142, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(143), \
+ ICE_PTT(144, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4), \
+ ICE_PTT(145, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4), \
+ ICE_PTT(146, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4), \
+ \
+ /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv6 */ \
+ ICE_PTT(147, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3), \
+ ICE_PTT(148, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3), \
+ ICE_PTT(149, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4), \
+ ICE_PTT_UNUSED_ENTRY(150), \
+ ICE_PTT(151, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4), \
+ ICE_PTT(152, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4), \
+ ICE_PTT(153, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4),
+
+#define ICE_NUM_DEFINED_PTYPES 154

/* macro to make the table lines short, use explicit indexing with [PTYPE] */
#define ICE_PTT(PTYPE, OUTER_IP, OUTER_IP_VER, OUTER_FRAG, T, TE, TEF, I, PL)\
@@ -695,212 +901,10 @@ struct ice_tlan_ctx {

/* Lookup table mapping in the 10-bit HW PTYPE to the bit field for decoding */
static const struct ice_rx_ptype_decoded ice_ptype_lkup[BIT(10)] = {
- /* L2 Packet types */
- ICE_PTT_UNUSED_ENTRY(0),
- ICE_PTT(1, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2),
- ICE_PTT_UNUSED_ENTRY(2),
- ICE_PTT_UNUSED_ENTRY(3),
- ICE_PTT_UNUSED_ENTRY(4),
- ICE_PTT_UNUSED_ENTRY(5),
- ICE_PTT(6, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE),
- ICE_PTT(7, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE),
- ICE_PTT_UNUSED_ENTRY(8),
- ICE_PTT_UNUSED_ENTRY(9),
- ICE_PTT(10, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE),
- ICE_PTT(11, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE),
- ICE_PTT_UNUSED_ENTRY(12),
- ICE_PTT_UNUSED_ENTRY(13),
- ICE_PTT_UNUSED_ENTRY(14),
- ICE_PTT_UNUSED_ENTRY(15),
- ICE_PTT_UNUSED_ENTRY(16),
- ICE_PTT_UNUSED_ENTRY(17),
- ICE_PTT_UNUSED_ENTRY(18),
- ICE_PTT_UNUSED_ENTRY(19),
- ICE_PTT_UNUSED_ENTRY(20),
- ICE_PTT_UNUSED_ENTRY(21),
-
- /* Non Tunneled IPv4 */
- ICE_PTT(22, IP, IPV4, FRG, NONE, NONE, NOF, NONE, PAY3),
- ICE_PTT(23, IP, IPV4, NOF, NONE, NONE, NOF, NONE, PAY3),
- ICE_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(25),
- ICE_PTT(26, IP, IPV4, NOF, NONE, NONE, NOF, TCP, PAY4),
- ICE_PTT(27, IP, IPV4, NOF, NONE, NONE, NOF, SCTP, PAY4),
- ICE_PTT(28, IP, IPV4, NOF, NONE, NONE, NOF, ICMP, PAY4),
-
- /* IPv4 --> IPv4 */
- ICE_PTT(29, IP, IPV4, NOF, IP_IP, IPV4, FRG, NONE, PAY3),
- ICE_PTT(30, IP, IPV4, NOF, IP_IP, IPV4, NOF, NONE, PAY3),
- ICE_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(32),
- ICE_PTT(33, IP, IPV4, NOF, IP_IP, IPV4, NOF, TCP, PAY4),
- ICE_PTT(34, IP, IPV4, NOF, IP_IP, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(35, IP, IPV4, NOF, IP_IP, IPV4, NOF, ICMP, PAY4),
-
- /* IPv4 --> IPv6 */
- ICE_PTT(36, IP, IPV4, NOF, IP_IP, IPV6, FRG, NONE, PAY3),
- ICE_PTT(37, IP, IPV4, NOF, IP_IP, IPV6, NOF, NONE, PAY3),
- ICE_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(39),
- ICE_PTT(40, IP, IPV4, NOF, IP_IP, IPV6, NOF, TCP, PAY4),
- ICE_PTT(41, IP, IPV4, NOF, IP_IP, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(42, IP, IPV4, NOF, IP_IP, IPV6, NOF, ICMP, PAY4),
-
- /* IPv4 --> GRE/NAT */
- ICE_PTT(43, IP, IPV4, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3),
-
- /* IPv4 --> GRE/NAT --> IPv4 */
- ICE_PTT(44, IP, IPV4, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3),
- ICE_PTT(45, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3),
- ICE_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(47),
- ICE_PTT(48, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4),
- ICE_PTT(49, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(50, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4),
-
- /* IPv4 --> GRE/NAT --> IPv6 */
- ICE_PTT(51, IP, IPV4, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3),
- ICE_PTT(52, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3),
- ICE_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(54),
- ICE_PTT(55, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4),
- ICE_PTT(56, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(57, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4),
-
- /* IPv4 --> GRE/NAT --> MAC */
- ICE_PTT(58, IP, IPV4, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3),
-
- /* IPv4 --> GRE/NAT --> MAC --> IPv4 */
- ICE_PTT(59, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3),
- ICE_PTT(60, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3),
- ICE_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(62),
- ICE_PTT(63, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4),
- ICE_PTT(64, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(65, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4),
-
- /* IPv4 --> GRE/NAT -> MAC --> IPv6 */
- ICE_PTT(66, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3),
- ICE_PTT(67, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3),
- ICE_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(69),
- ICE_PTT(70, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4),
- ICE_PTT(71, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(72, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4),
-
- /* IPv4 --> GRE/NAT --> MAC/VLAN */
- ICE_PTT(73, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3),
-
- /* IPv4 ---> GRE/NAT -> MAC/VLAN --> IPv4 */
- ICE_PTT(74, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3),
- ICE_PTT(75, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3),
- ICE_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(77),
- ICE_PTT(78, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4),
- ICE_PTT(79, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(80, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4),
-
- /* IPv4 -> GRE/NAT -> MAC/VLAN --> IPv6 */
- ICE_PTT(81, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3),
- ICE_PTT(82, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3),
- ICE_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(84),
- ICE_PTT(85, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4),
- ICE_PTT(86, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(87, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4),
-
- /* Non Tunneled IPv6 */
- ICE_PTT(88, IP, IPV6, FRG, NONE, NONE, NOF, NONE, PAY3),
- ICE_PTT(89, IP, IPV6, NOF, NONE, NONE, NOF, NONE, PAY3),
- ICE_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(91),
- ICE_PTT(92, IP, IPV6, NOF, NONE, NONE, NOF, TCP, PAY4),
- ICE_PTT(93, IP, IPV6, NOF, NONE, NONE, NOF, SCTP, PAY4),
- ICE_PTT(94, IP, IPV6, NOF, NONE, NONE, NOF, ICMP, PAY4),
-
- /* IPv6 --> IPv4 */
- ICE_PTT(95, IP, IPV6, NOF, IP_IP, IPV4, FRG, NONE, PAY3),
- ICE_PTT(96, IP, IPV6, NOF, IP_IP, IPV4, NOF, NONE, PAY3),
- ICE_PTT(97, IP, IPV6, NOF, IP_IP, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(98),
- ICE_PTT(99, IP, IPV6, NOF, IP_IP, IPV4, NOF, TCP, PAY4),
- ICE_PTT(100, IP, IPV6, NOF, IP_IP, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(101, IP, IPV6, NOF, IP_IP, IPV4, NOF, ICMP, PAY4),
-
- /* IPv6 --> IPv6 */
- ICE_PTT(102, IP, IPV6, NOF, IP_IP, IPV6, FRG, NONE, PAY3),
- ICE_PTT(103, IP, IPV6, NOF, IP_IP, IPV6, NOF, NONE, PAY3),
- ICE_PTT(104, IP, IPV6, NOF, IP_IP, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(105),
- ICE_PTT(106, IP, IPV6, NOF, IP_IP, IPV6, NOF, TCP, PAY4),
- ICE_PTT(107, IP, IPV6, NOF, IP_IP, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(108, IP, IPV6, NOF, IP_IP, IPV6, NOF, ICMP, PAY4),
-
- /* IPv6 --> GRE/NAT */
- ICE_PTT(109, IP, IPV6, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3),
-
- /* IPv6 --> GRE/NAT -> IPv4 */
- ICE_PTT(110, IP, IPV6, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3),
- ICE_PTT(111, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3),
- ICE_PTT(112, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(113),
- ICE_PTT(114, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4),
- ICE_PTT(115, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(116, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4),
-
- /* IPv6 --> GRE/NAT -> IPv6 */
- ICE_PTT(117, IP, IPV6, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3),
- ICE_PTT(118, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3),
- ICE_PTT(119, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(120),
- ICE_PTT(121, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4),
- ICE_PTT(122, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(123, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4),
-
- /* IPv6 --> GRE/NAT -> MAC */
- ICE_PTT(124, IP, IPV6, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3),
-
- /* IPv6 --> GRE/NAT -> MAC -> IPv4 */
- ICE_PTT(125, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3),
- ICE_PTT(126, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3),
- ICE_PTT(127, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(128),
- ICE_PTT(129, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4),
- ICE_PTT(130, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(131, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4),
-
- /* IPv6 --> GRE/NAT -> MAC -> IPv6 */
- ICE_PTT(132, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3),
- ICE_PTT(133, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3),
- ICE_PTT(134, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(135),
- ICE_PTT(136, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4),
- ICE_PTT(137, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(138, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4),
-
- /* IPv6 --> GRE/NAT -> MAC/VLAN */
- ICE_PTT(139, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3),
-
- /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv4 */
- ICE_PTT(140, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3),
- ICE_PTT(141, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3),
- ICE_PTT(142, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(143),
- ICE_PTT(144, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4),
- ICE_PTT(145, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4),
- ICE_PTT(146, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4),
-
- /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv6 */
- ICE_PTT(147, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3),
- ICE_PTT(148, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3),
- ICE_PTT(149, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4),
- ICE_PTT_UNUSED_ENTRY(150),
- ICE_PTT(151, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4),
- ICE_PTT(152, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4),
- ICE_PTT(153, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4),
+ ICE_PTYPES

/* unused entries */
- [154 ... 1023] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ [ICE_NUM_DEFINED_PTYPES ... 1023] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};

static inline struct ice_rx_ptype_decoded ice_decode_rx_desc_ptype(u16 ptype)
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
index 463d9e5cbe05..b11cfaedb81c 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
@@ -567,6 +567,79 @@ static int ice_xdp_rx_hw_ts(const struct xdp_md *ctx, u64 *ts_ns)
return 0;
}

+/* Define a ptype index -> XDP hash type lookup table.
+ * It uses the same ptype definitions as ice_decode_rx_desc_ptype[],
+ * avoiding possible copy-paste errors.
+ */
+#undef ICE_PTT
+#undef ICE_PTT_UNUSED_ENTRY
+
+#define ICE_PTT(PTYPE, OUTER_IP, OUTER_IP_VER, OUTER_FRAG, T, TE, TEF, I, PL)\
+ [PTYPE] = XDP_RSS_L3_##OUTER_IP_VER | XDP_RSS_L4_##I | XDP_RSS_TYPE_##PL
+
+#define ICE_PTT_UNUSED_ENTRY(PTYPE) [PTYPE] = 0
+
+/* A few supplementary definitions for when XDP hash types do not coincide
+ * with what can be generated from ptype definitions
+ * by means of preprocessor concatenation.
+ */
+#define XDP_RSS_L3_NONE XDP_RSS_TYPE_NONE
+#define XDP_RSS_L4_NONE XDP_RSS_TYPE_NONE
+#define XDP_RSS_TYPE_PAY2 XDP_RSS_TYPE_L2
+#define XDP_RSS_TYPE_PAY3 XDP_RSS_TYPE_NONE
+#define XDP_RSS_TYPE_PAY4 XDP_RSS_L4
+
+static const enum xdp_rss_hash_type
+ice_ptype_to_xdp_hash[ICE_NUM_DEFINED_PTYPES] = {
+ ICE_PTYPES
+};
+
+#undef XDP_RSS_L3_NONE
+#undef XDP_RSS_L4_NONE
+#undef XDP_RSS_TYPE_PAY2
+#undef XDP_RSS_TYPE_PAY3
+#undef XDP_RSS_TYPE_PAY4
+
+#undef ICE_PTT
+#undef ICE_PTT_UNUSED_ENTRY
+
+/**
+ * ice_xdp_rx_hash_type - Get XDP-specific hash type from the RX descriptor
+ * @eop_desc: End of Packet descriptor
+ */
+static enum xdp_rss_hash_type
+ice_xdp_rx_hash_type(const union ice_32b_rx_flex_desc *eop_desc)
+{
+ u16 ptype = ice_get_ptype(eop_desc);
+
+ if (unlikely(ptype >= ICE_NUM_DEFINED_PTYPES))
+ return 0;
+
+ return ice_ptype_to_xdp_hash[ptype];
+}
+
+/**
+ * ice_xdp_rx_hash - RX hash XDP hint handler
+ * @ctx: XDP buff pointer
+ * @hash: hash destination address
+ * @rss_type: XDP hash type destination address
+ *
+ * Copy RX hash (if available) and its type to the destination address.
+ */
+static int ice_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash,
+ enum xdp_rss_hash_type *rss_type)
+{
+ const struct ice_xdp_buff *xdp_ext = (void *)ctx;
+
+ *hash = ice_get_rx_hash(xdp_ext->pkt_ctx.eop_desc);
+ *rss_type = ice_xdp_rx_hash_type(xdp_ext->pkt_ctx.eop_desc);
+ if (!likely(*hash))
+ return -ENODATA;
+
+ return 0;
+}
+
const struct xdp_metadata_ops ice_xdp_md_ops = {
.xmo_rx_timestamp = ice_xdp_rx_hw_ts,
+ .xmo_rx_hash = ice_xdp_rx_hash,
};
diff --git a/include/net/xdp.h b/include/net/xdp.h
index de08c8e0d134..1e9870d5f025 100644
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -416,6 +416,7 @@ enum xdp_rss_hash_type {
XDP_RSS_L4_UDP = BIT(5),
XDP_RSS_L4_SCTP = BIT(6),
XDP_RSS_L4_IPSEC = BIT(7), /* L4 based hash include IPSEC SPI */
+ XDP_RSS_L4_ICMP = BIT(8),

/* Second part: RSS hash type combinations used for driver HW mapping */
XDP_RSS_TYPE_NONE = 0,
@@ -431,11 +432,13 @@ enum xdp_rss_hash_type {
XDP_RSS_TYPE_L4_IPV4_UDP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_UDP,
XDP_RSS_TYPE_L4_IPV4_SCTP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_SCTP,
XDP_RSS_TYPE_L4_IPV4_IPSEC = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_IPSEC,
+ XDP_RSS_TYPE_L4_IPV4_ICMP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_ICMP,

XDP_RSS_TYPE_L4_IPV6_TCP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_TCP,
XDP_RSS_TYPE_L4_IPV6_UDP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_UDP,
XDP_RSS_TYPE_L4_IPV6_SCTP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_SCTP,
XDP_RSS_TYPE_L4_IPV6_IPSEC = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_IPSEC,
+ XDP_RSS_TYPE_L4_IPV6_ICMP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_ICMP,

XDP_RSS_TYPE_L4_IPV6_TCP_EX = XDP_RSS_TYPE_L4_IPV6_TCP | XDP_RSS_L3_DYNHDR,
XDP_RSS_TYPE_L4_IPV6_UDP_EX = XDP_RSS_TYPE_L4_IPV6_UDP | XDP_RSS_L3_DYNHDR,
--
2.41.0