With dpdk revision: 24.07.0-rc4, I get the following error when attempting to
create a flow rule using the simple_xor algorithm.

[...]/dpdk-testpmd -l 10-19 -n 4 --file-prefix=dpdk_36732_20240812110924 -a
0000:01:00.0 -a 0000:03:00.0 -- -i --port-topology=paired --rxq=16 --txq=16
--mask-event=intr_lsc'

EAL: Detected CPU lcores: 192
EAL: Detected NUMA nodes: 2
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/dpdk_36732_20240812110924/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: VFIO support initialized
EAL: Using IOMMU type 1 (Type 1)
EAL: Probe PCI driver: net_ice (8086:1592) device: 0000:01:00.0 (socket 0)
ice_load_pkg_type(): Active package is: 1.3.36.0, ICE OS Default Package
(double VLAN mode)
EAL: Probe PCI driver: net_ice (8086:1592) device: 0000:03:00.0 (socket 0)
ice_load_pkg_type(): Active package is: 1.3.36.0, ICE OS Default Package
(double VLAN mode)
TELEMETRY: No legacy callbacks, legacy socket not created
Interactive-mode selected
...
testpmd> flow create 0 ingress pattern eth / ipv4 / udp / end actions rss types
ipv4-udp end queues end func symmetric_toeplitz / end
Flow rule #0 created
testpmd> flow create 0 ingress pattern eth / ipv4 / udp / end actions rss types
ipv4-udp end queues end func simple_xor / end
ice_flow_create(): Failed to create flow
port_flow_complain(): Caught PMD error type 10 (item specification): cause:
0xffffd1c69358, Invalid input set: Invalid argument

According to the datasheet[1] of the E810 NIC simple_xor is supported.
Had a brief looking into the ice driver, and it seems to have support for
simple_xor.
Both toeplitz and symmetric_toeplitz work correctly.

[1]:
https://www.intel.com/content/www/us/en/content-details/613875/intel-ethernet-controller-e810-datasheet.html