diff options
Diffstat (limited to 'sys/dev/ice/ice_flow.c')
| -rw-r--r-- | sys/dev/ice/ice_flow.c | 1972 |
1 files changed, 1972 insertions, 0 deletions
diff --git a/sys/dev/ice/ice_flow.c b/sys/dev/ice/ice_flow.c new file mode 100644 index 000000000000..a475833aef60 --- /dev/null +++ b/sys/dev/ice/ice_flow.c @@ -0,0 +1,1972 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ +/* Copyright (c) 2024, Intel Corporation + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "ice_common.h" +#include "ice_flow.h" + +/* Size of known protocol header fields */ +#define ICE_FLOW_FLD_SZ_ETH_TYPE 2 +#define ICE_FLOW_FLD_SZ_VLAN 2 +#define ICE_FLOW_FLD_SZ_IPV4_ADDR 4 +#define ICE_FLOW_FLD_SZ_IPV6_ADDR 16 +#define ICE_FLOW_FLD_SZ_IP_DSCP 1 +#define ICE_FLOW_FLD_SZ_IP_TTL 1 +#define ICE_FLOW_FLD_SZ_IP_PROT 1 +#define ICE_FLOW_FLD_SZ_PORT 2 +#define ICE_FLOW_FLD_SZ_TCP_FLAGS 1 +#define ICE_FLOW_FLD_SZ_ICMP_TYPE 1 +#define ICE_FLOW_FLD_SZ_ICMP_CODE 1 +#define ICE_FLOW_FLD_SZ_ARP_OPER 2 +#define ICE_FLOW_FLD_SZ_GRE_KEYID 4 + +/* Describe properties of a protocol header field */ +struct ice_flow_field_info { + enum ice_flow_seg_hdr hdr; + s16 off; /* Offset from start of a protocol header, in bits */ + u16 size; /* Size of fields in bits */ +}; + +#define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \ + .hdr = _hdr, \ + .off = (_offset_bytes) * BITS_PER_BYTE, \ + .size = (_size_bytes) * BITS_PER_BYTE, \ +} + +/* Table containing properties of supported protocol header fields */ +static const +struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = { + /* Ether */ + /* ICE_FLOW_FIELD_IDX_ETH_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_ETH_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, ETH_ALEN, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_S_VLAN */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 12, ICE_FLOW_FLD_SZ_VLAN), + /* ICE_FLOW_FIELD_IDX_C_VLAN */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 14, ICE_FLOW_FLD_SZ_VLAN), + /* ICE_FLOW_FIELD_IDX_ETH_TYPE */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ICE_FLOW_FLD_SZ_ETH_TYPE), + /* IPv4 / IPv6 */ + /* ICE_FLOW_FIELD_IDX_IPV4_DSCP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 1, ICE_FLOW_FLD_SZ_IP_DSCP), + /* ICE_FLOW_FIELD_IDX_IPV6_DSCP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 0, ICE_FLOW_FLD_SZ_IP_DSCP), + /* ICE_FLOW_FIELD_IDX_IPV4_TTL */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 8, ICE_FLOW_FLD_SZ_IP_TTL), + /* ICE_FLOW_FIELD_IDX_IPV4_PROT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 9, ICE_FLOW_FLD_SZ_IP_PROT), + /* ICE_FLOW_FIELD_IDX_IPV6_TTL */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 7, ICE_FLOW_FLD_SZ_IP_TTL), + /* ICE_FLOW_FIELD_IDX_IPV4_PROT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 6, ICE_FLOW_FLD_SZ_IP_PROT), + /* ICE_FLOW_FIELD_IDX_IPV4_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, ICE_FLOW_FLD_SZ_IPV4_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV4_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, ICE_FLOW_FLD_SZ_IPV4_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV6_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, ICE_FLOW_FLD_SZ_IPV6_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV6_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, ICE_FLOW_FLD_SZ_IPV6_ADDR), + /* Transport */ + /* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, ICE_FLOW_FLD_SZ_PORT), + /* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, ICE_FLOW_FLD_SZ_PORT), + /* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, ICE_FLOW_FLD_SZ_PORT), + /* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, ICE_FLOW_FLD_SZ_PORT), + /* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, ICE_FLOW_FLD_SZ_PORT), + /* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, ICE_FLOW_FLD_SZ_PORT), + /* ICE_FLOW_FIELD_IDX_TCP_FLAGS */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, ICE_FLOW_FLD_SZ_TCP_FLAGS), + /* ARP */ + /* ICE_FLOW_FIELD_IDX_ARP_SIP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, ICE_FLOW_FLD_SZ_IPV4_ADDR), + /* ICE_FLOW_FIELD_IDX_ARP_DIP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 24, ICE_FLOW_FLD_SZ_IPV4_ADDR), + /* ICE_FLOW_FIELD_IDX_ARP_SHA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 8, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_ARP_DHA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 18, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_ARP_OP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 6, ICE_FLOW_FLD_SZ_ARP_OPER), + /* ICMP */ + /* ICE_FLOW_FIELD_IDX_ICMP_TYPE */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 0, ICE_FLOW_FLD_SZ_ICMP_TYPE), + /* ICE_FLOW_FIELD_IDX_ICMP_CODE */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 1, ICE_FLOW_FLD_SZ_ICMP_CODE), + /* GRE */ + /* ICE_FLOW_FIELD_IDX_GRE_KEYID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12, ICE_FLOW_FLD_SZ_GRE_KEYID), +}; + +/* Bitmaps indicating relevant packet types for a particular protocol header + * + * Packet types for packets with an Outer/First/Single MAC header + */ +static const u32 ice_ptypes_mac_ofos[] = { + 0xFDC00846, 0xBFBF7F7E, 0xF70001DF, 0xFEFDFDFB, + 0x0000077E, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last MAC VLAN header */ +static const u32 ice_ptypes_macvlan_il[] = { + 0x00000000, 0xBC000000, 0x000001DF, 0xF0000000, + 0x0000077E, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single non-frag IPv4 header, + * does NOT include IPV4 other PTYPEs + */ +static const u32 ice_ptypes_ipv4_ofos[] = { + 0x1D800000, 0x04000800, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single non-frag IPv4 header, + * includes IPV4 other PTYPEs + */ +static const u32 ice_ptypes_ipv4_ofos_all[] = { + 0x1D800000, 0x04000800, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv4 header */ +static const u32 ice_ptypes_ipv4_il[] = { + 0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B, + 0x0000000E, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single non-frag IPv6 header, + * does NOT include IVP6 other PTYPEs + */ +static const u32 ice_ptypes_ipv6_ofos[] = { + 0x00000000, 0x00000000, 0x76000000, 0x10002000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single non-frag IPv6 header, + * includes IPV6 other PTYPEs + */ +static const u32 ice_ptypes_ipv6_ofos_all[] = { + 0x00000000, 0x00000000, 0x76000000, 0x10002000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv6 header */ +static const u32 ice_ptypes_ipv6_il[] = { + 0x00000000, 0x03B80770, 0x000001DC, 0x0EE00000, + 0x00000770, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single + * non-frag IPv4 header - no L4 + */ +static const u32 ice_ptypes_ipv4_ofos_no_l4[] = { + 0x10800000, 0x04000800, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv4 header - no L4 */ +static const u32 ice_ptypes_ipv4_il_no_l4[] = { + 0x60000000, 0x18043008, 0x80000002, 0x6010c021, + 0x00000008, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single + * non-frag IPv6 header - no L4 + */ +static const u32 ice_ptypes_ipv6_ofos_no_l4[] = { + 0x00000000, 0x00000000, 0x42000000, 0x10002000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv6 header - no L4 */ +static const u32 ice_ptypes_ipv6_il_no_l4[] = { + 0x00000000, 0x02180430, 0x0000010c, 0x086010c0, + 0x00000430, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outermost/First ARP header */ +static const u32 ice_ptypes_arp_of[] = { + 0x00000800, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* UDP Packet types for non-tunneled packets or tunneled + * packets with inner UDP. + */ +static const u32 ice_ptypes_udp_il[] = { + 0x81000000, 0x20204040, 0x04000010, 0x80810102, + 0x00000040, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last TCP header */ +static const u32 ice_ptypes_tcp_il[] = { + 0x04000000, 0x80810102, 0x10000040, 0x02040408, + 0x00000102, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last SCTP header */ +static const u32 ice_ptypes_sctp_il[] = { + 0x08000000, 0x01020204, 0x20000081, 0x04080810, + 0x00000204, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outermost/First ICMP header */ +static const u32 ice_ptypes_icmp_of[] = { + 0x10000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last ICMP header */ +static const u32 ice_ptypes_icmp_il[] = { + 0x00000000, 0x02040408, 0x40000102, 0x08101020, + 0x00000408, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outermost/First GRE header */ +static const u32 ice_ptypes_gre_of[] = { + 0x00000000, 0xBFBF7800, 0x000001DF, 0xFEFDE000, + 0x0000017E, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last MAC header */ +static const u32 ice_ptypes_mac_il[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Manage parameters and info. used during the creation of a flow profile */ +struct ice_flow_prof_params { + enum ice_block blk; + u16 entry_length; /* # of bytes formatted entry will require */ + u8 es_cnt; + struct ice_flow_prof *prof; + + /* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0 + * This will give us the direction flags. + */ + struct ice_fv_word es[ICE_MAX_FV_WORDS]; + + ice_declare_bitmap(ptypes, ICE_FLOW_PTYPE_MAX); +}; + +#define ICE_FLOW_SEG_HDRS_L3_MASK \ + (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_ARP) +#define ICE_FLOW_SEG_HDRS_L4_MASK \ + (ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \ + ICE_FLOW_SEG_HDR_SCTP) +/* mask for L4 protocols that are NOT part of IPv4/6 OTHER PTYPE groups */ +#define ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER \ + (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP) + +/** + * ice_flow_val_hdrs - validates packet segments for valid protocol headers + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + */ +static int ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt) +{ + u8 i; + + for (i = 0; i < segs_cnt; i++) { + /* Multiple L3 headers */ + if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK && + !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK)) + return ICE_ERR_PARAM; + + /* Multiple L4 headers */ + if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK && + !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)) + return ICE_ERR_PARAM; + } + + return 0; +} + +/** + * ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments + * @params: information about the flow to be processed + * + * This function identifies the packet types associated with the protocol + * headers being present in packet segments of the specified flow profile. + */ +static int +ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params) +{ + struct ice_flow_prof *prof; + u8 i; + + ice_memset(params->ptypes, 0xff, sizeof(params->ptypes), + ICE_NONDMA_MEM); + + prof = params->prof; + + for (i = 0; i < params->prof->segs_cnt; i++) { + const ice_bitmap_t *src; + u32 hdrs; + + hdrs = prof->segs[i].hdrs; + + if (hdrs & ICE_FLOW_SEG_HDR_ETH) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_mac_ofos : + (const ice_bitmap_t *)ice_ptypes_mac_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) { + src = (const ice_bitmap_t *)ice_ptypes_macvlan_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) { + ice_and_bitmap(params->ptypes, params->ptypes, + (const ice_bitmap_t *)ice_ptypes_arp_of, + ICE_FLOW_PTYPE_MAX); + } + + if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) && + (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) { + src = i ? (const ice_bitmap_t *)ice_ptypes_ipv4_il : + (const ice_bitmap_t *)ice_ptypes_ipv4_ofos_all; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) && + (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) { + src = i ? (const ice_bitmap_t *)ice_ptypes_ipv6_il : + (const ice_bitmap_t *)ice_ptypes_ipv6_ofos_all; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) && + !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv4_ofos_no_l4 : + (const ice_bitmap_t *)ice_ptypes_ipv4_il_no_l4; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_IPV4) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv4_ofos : + (const ice_bitmap_t *)ice_ptypes_ipv4_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) && + !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv6_ofos_no_l4 : + (const ice_bitmap_t *)ice_ptypes_ipv6_il_no_l4; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv6_ofos : + (const ice_bitmap_t *)ice_ptypes_ipv6_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (hdrs & ICE_FLOW_SEG_HDR_UDP) { + src = (const ice_bitmap_t *)ice_ptypes_udp_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_TCP) { + ice_and_bitmap(params->ptypes, params->ptypes, + (const ice_bitmap_t *)ice_ptypes_tcp_il, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) { + src = (const ice_bitmap_t *)ice_ptypes_sctp_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (hdrs & ICE_FLOW_SEG_HDR_ICMP) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_icmp_of : + (const ice_bitmap_t *)ice_ptypes_icmp_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_GRE) { + if (!i) { + src = (const ice_bitmap_t *)ice_ptypes_gre_of; + ice_and_bitmap(params->ptypes, params->ptypes, + src, ICE_FLOW_PTYPE_MAX); + } + } + } + + return 0; +} + +/* + * ice_flow_xtract_fld - Create an extraction sequence entry for the given field + * @hw: pointer to the HW struct + * @params: information about the flow to be processed + * @seg: packet segment index of the field to be extracted + * @fld: ID of field to be extracted + * + * This function determines the protocol ID, offset, and size of the given + * field. It then allocates one or more extraction sequence entries for the + * given field, and fill the entries with protocol ID and offset information. + */ +static int +ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params, + u8 seg, enum ice_flow_field fld) +{ + enum ice_flow_field sib = ICE_FLOW_FIELD_IDX_MAX; + u8 fv_words = (u8)hw->blk[params->blk].es.fvw; + enum ice_prot_id prot_id = ICE_PROT_ID_INVAL; + struct ice_flow_fld_info *flds; + u16 cnt, ese_bits, i; + u16 off; + + flds = params->prof->segs[seg].fields; + + switch (fld) { + case ICE_FLOW_FIELD_IDX_ETH_DA: + case ICE_FLOW_FIELD_IDX_ETH_SA: + case ICE_FLOW_FIELD_IDX_S_VLAN: + case ICE_FLOW_FIELD_IDX_C_VLAN: + prot_id = seg == 0 ? ICE_PROT_MAC_OF_OR_S : ICE_PROT_MAC_IL; + break; + case ICE_FLOW_FIELD_IDX_ETH_TYPE: + prot_id = seg == 0 ? ICE_PROT_ETYPE_OL : ICE_PROT_ETYPE_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV4_DSCP: + prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV6_DSCP: + prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV4_TTL: + case ICE_FLOW_FIELD_IDX_IPV4_PROT: + prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; + /* TTL and PROT share the same extraction seq. entry. + * Each is considered a sibling to the other in terms of sharing + * the same extraction sequence entry. + */ + if (fld == ICE_FLOW_FIELD_IDX_IPV4_TTL) + sib = ICE_FLOW_FIELD_IDX_IPV4_PROT; + else + sib = ICE_FLOW_FIELD_IDX_IPV4_TTL; + break; + case ICE_FLOW_FIELD_IDX_IPV6_TTL: + case ICE_FLOW_FIELD_IDX_IPV6_PROT: + prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; + /* TTL and PROT share the same extraction seq. entry. + * Each is considered a sibling to the other in terms of sharing + * the same extraction sequence entry. + */ + if (fld == ICE_FLOW_FIELD_IDX_IPV6_TTL) + sib = ICE_FLOW_FIELD_IDX_IPV6_PROT; + else + sib = ICE_FLOW_FIELD_IDX_IPV6_TTL; + break; + case ICE_FLOW_FIELD_IDX_IPV4_SA: + case ICE_FLOW_FIELD_IDX_IPV4_DA: + prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV6_SA: + case ICE_FLOW_FIELD_IDX_IPV6_DA: + prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; + break; + case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT: + case ICE_FLOW_FIELD_IDX_TCP_DST_PORT: + case ICE_FLOW_FIELD_IDX_TCP_FLAGS: + prot_id = ICE_PROT_TCP_IL; + break; + case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT: + case ICE_FLOW_FIELD_IDX_UDP_DST_PORT: + prot_id = ICE_PROT_UDP_IL_OR_S; + break; + case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT: + case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT: + prot_id = ICE_PROT_SCTP_IL; + break; + case ICE_FLOW_FIELD_IDX_ARP_SIP: + case ICE_FLOW_FIELD_IDX_ARP_DIP: + case ICE_FLOW_FIELD_IDX_ARP_SHA: + case ICE_FLOW_FIELD_IDX_ARP_DHA: + case ICE_FLOW_FIELD_IDX_ARP_OP: + prot_id = ICE_PROT_ARP_OF; + break; + case ICE_FLOW_FIELD_IDX_ICMP_TYPE: + case ICE_FLOW_FIELD_IDX_ICMP_CODE: + /* ICMP type and code share the same extraction seq. entry */ + prot_id = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) ? + ICE_PROT_ICMP_IL : ICE_PROT_ICMPV6_IL; + sib = fld == ICE_FLOW_FIELD_IDX_ICMP_TYPE ? + ICE_FLOW_FIELD_IDX_ICMP_CODE : + ICE_FLOW_FIELD_IDX_ICMP_TYPE; + break; + case ICE_FLOW_FIELD_IDX_GRE_KEYID: + prot_id = ICE_PROT_GRE_OF; + break; + default: + return ICE_ERR_NOT_IMPL; + } + + /* Each extraction sequence entry is a word in size, and extracts a + * word-aligned offset from a protocol header. + */ + ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE; + + flds[fld].xtrct.prot_id = (u8)prot_id; + flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) * + ICE_FLOW_FV_EXTRACT_SZ; + flds[fld].xtrct.disp = (u8)(ice_flds_info[fld].off % ese_bits); + flds[fld].xtrct.idx = params->es_cnt; + + /* Adjust the next field-entry index after accommodating the number of + * entries this field consumes + */ + cnt = DIVIDE_AND_ROUND_UP(flds[fld].xtrct.disp + + ice_flds_info[fld].size, ese_bits); + + /* Fill in the extraction sequence entries needed for this field */ + off = flds[fld].xtrct.off; + for (i = 0; i < cnt; i++) { + /* Only consume an extraction sequence entry if there is no + * sibling field associated with this field or the sibling entry + * already extracts the word shared with this field. + */ + if (sib == ICE_FLOW_FIELD_IDX_MAX || + flds[sib].xtrct.prot_id == ICE_PROT_ID_INVAL || + flds[sib].xtrct.off != off) { + u8 idx; + + /* Make sure the number of extraction sequence required + * does not exceed the block's capability + */ + if (params->es_cnt >= fv_words) + return ICE_ERR_MAX_LIMIT; + + /* some blocks require a reversed field vector layout */ + if (hw->blk[params->blk].es.reverse) + idx = fv_words - params->es_cnt - 1; + else + idx = params->es_cnt; + + params->es[idx].prot_id = (u8)prot_id; + params->es[idx].off = off; + params->es_cnt++; + } + + off += ICE_FLOW_FV_EXTRACT_SZ; + } + + return 0; +} + +/** + * ice_flow_create_xtrct_seq - Create an extraction sequence for given segments + * @hw: pointer to the HW struct + * @params: information about the flow to be processed + * + * This function iterates through all matched fields in the given segments, and + * creates an extraction sequence for the fields. + */ +static int +ice_flow_create_xtrct_seq(struct ice_hw *hw, + struct ice_flow_prof_params *params) +{ + int status = 0; + u8 i; + + for (i = 0; i < params->prof->segs_cnt; i++) { + ice_declare_bitmap(match, ICE_FLOW_FIELD_IDX_MAX); + enum ice_flow_field j; + + ice_cp_bitmap(match, params->prof->segs[i].match, + ICE_FLOW_FIELD_IDX_MAX); + ice_for_each_set_bit(j, match, ICE_FLOW_FIELD_IDX_MAX) { + status = ice_flow_xtract_fld(hw, params, i, j); + if (status) + return status; + ice_clear_bit(j, match); + } + } + + return status; +} + +/** + * ice_flow_proc_segs - process all packet segments associated with a profile + * @hw: pointer to the HW struct + * @params: information about the flow to be processed + */ +static int +ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params) +{ + int status; + + status = ice_flow_proc_seg_hdrs(params); + if (status) + return status; + + status = ice_flow_create_xtrct_seq(hw, params); + if (status) + return status; + + switch (params->blk) { + case ICE_BLK_RSS: + status = 0; + break; + default: + return ICE_ERR_NOT_IMPL; + } + + return status; +} + +#define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001 +#define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002 +#define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004 + +/** + * ice_flow_find_prof_conds - Find a profile matching headers and conditions + * @hw: pointer to the HW struct + * @blk: classification stage + * @dir: flow direction + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI) + * @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*) + */ +static struct ice_flow_prof * +ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk, + enum ice_flow_dir dir, struct ice_flow_seg_info *segs, + u8 segs_cnt, u16 vsi_handle, u32 conds) +{ + struct ice_flow_prof *p, *prof = NULL; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) + if ((p->dir == dir || conds & ICE_FLOW_FIND_PROF_NOT_CHK_DIR) && + segs_cnt && segs_cnt == p->segs_cnt) { + u8 i; + + /* Check for profile-VSI association if specified */ + if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) && + ice_is_vsi_valid(hw, vsi_handle) && + !ice_is_bit_set(p->vsis, vsi_handle)) + continue; + + /* Protocol headers must be checked. Matched fields are + * checked if specified. + */ + for (i = 0; i < segs_cnt; i++) + if (segs[i].hdrs != p->segs[i].hdrs || + ((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) && + (ice_cmp_bitmap(segs[i].match, + p->segs[i].match, + ICE_FLOW_FIELD_IDX_MAX) == + false))) + break; + + /* A match is found if all segments are matched */ + if (i == segs_cnt) { + prof = p; + break; + } + } + ice_release_lock(&hw->fl_profs_locks[blk]); + + return prof; +} + +/** + * ice_flow_find_prof - Look up a profile matching headers and matched fields + * @hw: pointer to the HW struct + * @blk: classification stage + * @dir: flow direction + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + */ +u64 +ice_flow_find_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, + struct ice_flow_seg_info *segs, u8 segs_cnt) +{ + struct ice_flow_prof *p; + + p = ice_flow_find_prof_conds(hw, blk, dir, segs, segs_cnt, + ICE_MAX_VSI, ICE_FLOW_FIND_PROF_CHK_FLDS); + + return p ? p->id : ICE_FLOW_PROF_ID_INVAL; +} + +/** + * ice_flow_find_prof_id - Look up a profile with given profile ID + * @hw: pointer to the HW struct + * @blk: classification stage + * @prof_id: unique ID to identify this flow profile + */ +static struct ice_flow_prof * +ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id) +{ + struct ice_flow_prof *p; + + LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) + if (p->id == prof_id) + return p; + + return NULL; +} + +/** + * ice_flow_get_hw_prof - return the HW profile for a specific profile ID handle + * @hw: pointer to the HW struct + * @blk: classification stage + * @prof_id: the profile ID handle + * @hw_prof_id: pointer to variable to receive the HW profile ID + */ +int +ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id, + u8 *hw_prof_id) +{ + struct ice_prof_map *map; + int status = ICE_ERR_DOES_NOT_EXIST; + + ice_acquire_lock(&hw->blk[blk].es.prof_map_lock); + map = ice_search_prof_id(hw, blk, prof_id); + if (map) { + *hw_prof_id = map->prof_id; + status = 0; + } + ice_release_lock(&hw->blk[blk].es.prof_map_lock); + return status; +} + +/** + * ice_flow_add_prof_sync - Add a flow profile for packet segments and fields + * @hw: pointer to the HW struct + * @blk: classification stage + * @dir: flow direction + * @prof_id: unique ID to identify this flow profile + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @acts: array of default actions + * @acts_cnt: number of default actions + * @prof: stores the returned flow profile added + * + * Assumption: the caller has acquired the lock to the profile list + */ +static int +ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, + enum ice_flow_dir dir, u64 prof_id, + struct ice_flow_seg_info *segs, u8 segs_cnt, + struct ice_flow_action *acts, u8 acts_cnt, + struct ice_flow_prof **prof) +{ + struct ice_flow_prof_params *params; + int status; + u8 i; + + if (!prof || (acts_cnt && !acts)) + return ICE_ERR_BAD_PTR; + + params = (struct ice_flow_prof_params *)ice_malloc(hw, sizeof(*params)); + if (!params) + return ICE_ERR_NO_MEMORY; + + params->prof = (struct ice_flow_prof *) + ice_malloc(hw, sizeof(*params->prof)); + if (!params->prof) { + status = ICE_ERR_NO_MEMORY; + goto free_params; + } + + /* initialize extraction sequence to all invalid (0xff) */ + for (i = 0; i < ICE_MAX_FV_WORDS; i++) { + params->es[i].prot_id = ICE_PROT_INVALID; + params->es[i].off = ICE_FV_OFFSET_INVAL; + } + + params->blk = blk; + params->prof->id = prof_id; + params->prof->dir = dir; + params->prof->segs_cnt = segs_cnt; + + /* Make a copy of the segments that need to be persistent in the flow + * profile instance + */ + for (i = 0; i < segs_cnt; i++) + ice_memcpy(¶ms->prof->segs[i], &segs[i], sizeof(*segs), + ICE_NONDMA_TO_NONDMA); + + status = ice_flow_proc_segs(hw, params); + if (status) { + ice_debug(hw, ICE_DBG_FLOW, "Error processing a flow's packet segments\n"); + goto out; + } + + /* Add a HW profile for this flow profile */ + status = ice_add_prof(hw, blk, prof_id, params->ptypes, params->es); + if (status) { + ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n"); + goto out; + } + + *prof = params->prof; + +out: + if (status) { + ice_free(hw, params->prof); + } +free_params: + ice_free(hw, params); + + return status; +} + +/** + * ice_flow_rem_prof_sync - remove a flow profile + * @hw: pointer to the hardware structure + * @blk: classification stage + * @prof: pointer to flow profile to remove + * + * Assumption: the caller has acquired the lock to the profile list + */ +static int +ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof) +{ + int status; + + /* Remove all hardware profiles associated with this flow profile */ + status = ice_rem_prof(hw, blk, prof->id); + if (!status) { + LIST_DEL(&prof->l_entry); + ice_free(hw, prof); + } + + return status; +} + +/** + * ice_flow_assoc_vsig_vsi - associate a VSI with VSIG + * @hw: pointer to the hardware structure + * @blk: classification stage + * @vsi_handle: software VSI handle + * @vsig: target VSI group + * + * Assumption: the caller has already verified that the VSI to + * be added has the same characteristics as the VSIG and will + * thereby have access to all resources added to that VSIG. + */ +int +ice_flow_assoc_vsig_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi_handle, + u16 vsig) +{ + int status; + + if (!ice_is_vsi_valid(hw, vsi_handle) || blk >= ICE_BLK_COUNT) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + status = ice_add_vsi_flow(hw, blk, ice_get_hw_vsi_num(hw, vsi_handle), + vsig); + ice_release_lock(&hw->fl_profs_locks[blk]); + + return status; +} + +/** + * ice_flow_assoc_prof - associate a VSI with a flow profile + * @hw: pointer to the hardware structure + * @blk: classification stage + * @prof: pointer to flow profile + * @vsi_handle: software VSI handle + * + * Assumption: the caller has acquired the lock to the profile list + * and the software VSI handle has been validated + */ +static int +ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof, u16 vsi_handle) +{ + int status = 0; + + if (!ice_is_bit_set(prof->vsis, vsi_handle)) { + status = ice_add_prof_id_flow(hw, blk, + ice_get_hw_vsi_num(hw, + vsi_handle), + prof->id); + if (!status) + ice_set_bit(vsi_handle, prof->vsis); + else + ice_debug(hw, ICE_DBG_FLOW, "HW profile add failed, %d\n", + status); + } + + return status; +} + +/** + * ice_flow_disassoc_prof - disassociate a VSI from a flow profile + * @hw: pointer to the hardware structure + * @blk: classification stage + * @prof: pointer to flow profile + * @vsi_handle: software VSI handle + * + * Assumption: the caller has acquired the lock to the profile list + * and the software VSI handle has been validated + */ +static int +ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof, u16 vsi_handle) +{ + int status = 0; + + if (ice_is_bit_set(prof->vsis, vsi_handle)) { + status = ice_rem_prof_id_flow(hw, blk, + ice_get_hw_vsi_num(hw, + vsi_handle), + prof->id); + if (!status) + ice_clear_bit(vsi_handle, prof->vsis); + else + ice_debug(hw, ICE_DBG_FLOW, "HW profile remove failed, %d\n", + status); + } + + return status; +} + +/** + * ice_flow_add_prof - Add a flow profile for packet segments and matched fields + * @hw: pointer to the HW struct + * @blk: classification stage + * @dir: flow direction + * @prof_id: unique ID to identify this flow profile + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @acts: array of default actions + * @acts_cnt: number of default actions + * @prof: stores the returned flow profile added + */ +static int +ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, + u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt, + struct ice_flow_action *acts, u8 acts_cnt, + struct ice_flow_prof **prof) +{ + int status; + + if (segs_cnt > ICE_FLOW_SEG_MAX) + return ICE_ERR_MAX_LIMIT; + + if (!segs_cnt) + return ICE_ERR_PARAM; + + if (!segs) + return ICE_ERR_BAD_PTR; + + status = ice_flow_val_hdrs(segs, segs_cnt); + if (status) + return status; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + + status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt, + acts, acts_cnt, prof); + if (!status) + LIST_ADD(&(*prof)->l_entry, &hw->fl_profs[blk]); + + ice_release_lock(&hw->fl_profs_locks[blk]); + + return status; +} + +/** + * ice_flow_rem_prof - Remove a flow profile and all entries associated with it + * @hw: pointer to the HW struct + * @blk: the block for which the flow profile is to be removed + * @prof_id: unique ID of the flow profile to be removed + */ +static int +ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id) +{ + struct ice_flow_prof *prof; + int status; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + + prof = ice_flow_find_prof_id(hw, blk, prof_id); + if (!prof) { + status = ICE_ERR_DOES_NOT_EXIST; + goto out; + } + + /* prof becomes invalid after the call */ + status = ice_flow_rem_prof_sync(hw, blk, prof); + +out: + ice_release_lock(&hw->fl_profs_locks[blk]); + + return status; +} + +/** + * ice_flow_set_fld_ext - specifies locations of field from entry's input buffer + * @seg: packet segment the field being set belongs to + * @fld: field to be set + * @field_type: type of the field + * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from + * entry's input buffer + * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's + * input buffer + * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from + * entry's input buffer + * + * This helper function stores information of a field being matched, including + * the type of the field and the locations of the value to match, the mask, and + * the upper-bound value in the start of the input buffer for a flow entry. + * This function should only be used for fixed-size data structures. + * + * This function also opportunistically determines the protocol headers to be + * present based on the fields being set. Some fields cannot be used alone to + * determine the protocol headers present. Sometimes, fields for particular + * protocol headers are not matched. In those cases, the protocol headers + * must be explicitly set. + */ +static void +ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld, + enum ice_flow_fld_match_type field_type, u16 val_loc, + u16 mask_loc, u16 last_loc) +{ + ice_set_bit(fld, seg->match); + if (field_type == ICE_FLOW_FLD_TYPE_RANGE) + ice_set_bit(fld, seg->range); + + seg->fields[fld].type = field_type; + seg->fields[fld].src.val = val_loc; + seg->fields[fld].src.mask = mask_loc; + seg->fields[fld].src.last = last_loc; + + ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr); +} + +/** + * ice_flow_set_fld - specifies locations of field from entry's input buffer + * @seg: packet segment the field being set belongs to + * @fld: field to be set + * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from + * entry's input buffer + * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's + * input buffer + * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from + * entry's input buffer + * @range: indicate if field being matched is to be in a range + * + * This function specifies the locations, in the form of byte offsets from the + * start of the input buffer for a flow entry, from where the value to match, + * the mask value, and upper value can be extracted. These locations are then + * stored in the flow profile. When adding a flow entry associated with the + * flow profile, these locations will be used to quickly extract the values and + * create the content of a match entry. This function should only be used for + * fixed-size data structures. + */ +static void +ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld, + u16 val_loc, u16 mask_loc, u16 last_loc, bool range) +{ + enum ice_flow_fld_match_type t = range ? + ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG; + + ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc); +} + +/** + * ice_flow_set_fld_prefix - sets locations of prefix field from entry's buf + * @seg: packet segment the field being set belongs to + * @fld: field to be set + * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from + * entry's input buffer + * @pref_loc: location of prefix value from entry's input buffer + * @pref_sz: size of the location holding the prefix value + * + * This function specifies the locations, in the form of byte offsets from the + * start of the input buffer for a flow entry, from where the value to match + * and the IPv4 prefix value can be extracted. These locations are then stored + * in the flow profile. When adding flow entries to the associated flow profile, + * these locations can be used to quickly extract the values to create the + * content of a match entry. This function should only be used for fixed-size + * data structures. + */ +void +ice_flow_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld, + u16 val_loc, u16 pref_loc, u8 pref_sz) +{ + /* For this type of field, the "mask" location is for the prefix value's + * location and the "last" location is for the size of the location of + * the prefix value. + */ + ice_flow_set_fld_ext(seg, fld, ICE_FLOW_FLD_TYPE_PREFIX, val_loc, + pref_loc, (u16)pref_sz); +} + +#define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \ + (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6) + +#define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \ + (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP) + +#define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \ + (ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \ + ICE_FLOW_RSS_SEG_HDR_L4_MASKS) + +/** + * ice_flow_set_rss_seg_info - setup packet segments for RSS + * @segs: pointer to the flow field segment(s) + * @seg_cnt: segment count + * @cfg: configure parameters + * + * Helper function to extract fields from hash bitmap and use flow + * header value to set flow field segment for further use in flow + * profile entry or removal. + */ +static int +ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u8 seg_cnt, + const struct ice_rss_hash_cfg *cfg) +{ + struct ice_flow_seg_info *seg; + u64 val; + u16 i; + + /* set inner most segment */ + seg = &segs[seg_cnt - 1]; + + ice_for_each_set_bit(i, (const ice_bitmap_t *)&cfg->hash_flds, + (u16)ICE_FLOW_FIELD_IDX_MAX) + ice_flow_set_fld(seg, (enum ice_flow_field)i, + ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, + ICE_FLOW_FLD_OFF_INVAL, false); + + ICE_FLOW_SET_HDRS(seg, cfg->addl_hdrs); + + /* set outer most header */ + if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV4) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV4 | + ICE_FLOW_SEG_HDR_IPV_FRAG | + ICE_FLOW_SEG_HDR_IPV_OTHER; + else if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV6) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV6 | + ICE_FLOW_SEG_HDR_IPV_FRAG | + ICE_FLOW_SEG_HDR_IPV_OTHER; + else if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV4_GRE) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV4 | + ICE_FLOW_SEG_HDR_GRE | + ICE_FLOW_SEG_HDR_IPV_OTHER; + else if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV6_GRE) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV6 | + ICE_FLOW_SEG_HDR_GRE | + ICE_FLOW_SEG_HDR_IPV_OTHER; + + if (seg->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS) + return ICE_ERR_PARAM; + + val = (u64)(seg->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS); + if (val && !ice_is_pow2(val)) + return ICE_ERR_CFG; + + val = (u64)(seg->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS); + if (val && !ice_is_pow2(val)) + return ICE_ERR_CFG; + + return 0; +} + +/** + * ice_rem_vsi_rss_list - remove VSI from RSS list + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * + * Remove the VSI from all RSS configurations in the list. + */ +void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle) +{ + struct ice_rss_cfg *r, *tmp; + + if (LIST_EMPTY(&hw->rss_list_head)) + return; + + ice_acquire_lock(&hw->rss_locks); + LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head, + ice_rss_cfg, l_entry) + if (ice_test_and_clear_bit(vsi_handle, r->vsis)) + if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) { + LIST_DEL(&r->l_entry); + ice_free(hw, r); + } + ice_release_lock(&hw->rss_locks); +} + +/** + * ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * + * This function will iterate through all flow profiles and disassociate + * the VSI from that profile. If the flow profile has no VSIs it will + * be removed. + */ +int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_prof *p, *t; + int status = 0; + u16 vsig; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + if (LIST_EMPTY(&hw->fl_profs[blk])) + return 0; + + ice_acquire_lock(&hw->rss_locks); + LIST_FOR_EACH_ENTRY_SAFE(p, t, &hw->fl_profs[blk], ice_flow_prof, + l_entry) { + int ret; + + /* check if vsig is already removed */ + ret = ice_vsig_find_vsi(hw, blk, + ice_get_hw_vsi_num(hw, vsi_handle), + &vsig); + if (!ret && !vsig) + break; + + if (ice_is_bit_set(p->vsis, vsi_handle)) { + status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle); + if (status) + break; + + if (!ice_is_any_bit_set(p->vsis, ICE_MAX_VSI)) { + status = ice_flow_rem_prof(hw, blk, p->id); + if (status) + break; + } + } + } + ice_release_lock(&hw->rss_locks); + + return status; +} + +/** + * ice_get_rss_hdr_type - get a RSS profile's header type + * @prof: RSS flow profile + */ +static enum ice_rss_cfg_hdr_type +ice_get_rss_hdr_type(struct ice_flow_prof *prof) +{ + enum ice_rss_cfg_hdr_type hdr_type = ICE_RSS_ANY_HEADERS; + + if (prof->segs_cnt == ICE_FLOW_SEG_SINGLE) { + hdr_type = ICE_RSS_OUTER_HEADERS; + } else if (prof->segs_cnt == ICE_FLOW_SEG_MAX) { + const struct ice_flow_seg_info *s; + + s = &prof->segs[ICE_RSS_OUTER_HEADERS]; + if (s->hdrs == ICE_FLOW_SEG_HDR_NONE) + hdr_type = ICE_RSS_INNER_HEADERS; + if (s->hdrs & ICE_FLOW_SEG_HDR_IPV4) + hdr_type = ICE_RSS_INNER_HEADERS_W_OUTER_IPV4; + if (s->hdrs & ICE_FLOW_SEG_HDR_IPV6) + hdr_type = ICE_RSS_INNER_HEADERS_W_OUTER_IPV6; + } + + return hdr_type; +} + +/** + * ice_rem_rss_list - remove RSS configuration from list + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @prof: pointer to flow profile + * + * Assumption: lock has already been acquired for RSS list + */ +static void +ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) +{ + enum ice_rss_cfg_hdr_type hdr_type; + struct ice_rss_cfg *r, *tmp; + u64 seg_match = 0; + u16 i; + + /* convert match bitmap to u64 for hash field comparison */ + ice_for_each_set_bit(i, prof->segs[prof->segs_cnt - 1].match, + ICE_FLOW_FIELD_IDX_MAX) { + seg_match |= 1ULL << i; + } + + /* Search for RSS hash fields associated to the VSI that match the + * hash configurations associated to the flow profile. If found + * remove from the RSS entry list of the VSI context and delete entry. + */ + hdr_type = ice_get_rss_hdr_type(prof); + LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head, + ice_rss_cfg, l_entry) + if (r->hash.hash_flds == seg_match && + r->hash.addl_hdrs == prof->segs[prof->segs_cnt - 1].hdrs && + r->hash.hdr_type == hdr_type) { + ice_clear_bit(vsi_handle, r->vsis); + if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) { + LIST_DEL(&r->l_entry); + ice_free(hw, r); + } + return; + } +} + +/** + * ice_add_rss_list - add RSS configuration to list + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @prof: pointer to flow profile + * + * Assumption: lock has already been acquired for RSS list + */ +static int +ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) +{ + enum ice_rss_cfg_hdr_type hdr_type; + struct ice_rss_cfg *r, *rss_cfg; + u64 seg_match = 0; + u16 i; + + ice_for_each_set_bit(i, prof->segs[prof->segs_cnt - 1].match, + ICE_FLOW_FIELD_IDX_MAX) { + seg_match |= 1ULL << i; + } + + hdr_type = ice_get_rss_hdr_type(prof); + LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head, + ice_rss_cfg, l_entry) + if (r->hash.hash_flds == seg_match && + r->hash.addl_hdrs == prof->segs[prof->segs_cnt - 1].hdrs && + r->hash.hdr_type == hdr_type) { + ice_set_bit(vsi_handle, r->vsis); + return 0; + } + + rss_cfg = (struct ice_rss_cfg *)ice_malloc(hw, sizeof(*rss_cfg)); + if (!rss_cfg) + return ICE_ERR_NO_MEMORY; + + rss_cfg->hash.hash_flds = seg_match; + rss_cfg->hash.addl_hdrs = prof->segs[prof->segs_cnt - 1].hdrs; + rss_cfg->hash.hdr_type = hdr_type; + rss_cfg->hash.symm = prof->cfg.symm; + ice_set_bit(vsi_handle, rss_cfg->vsis); + + LIST_ADD_TAIL(&rss_cfg->l_entry, &hw->rss_list_head); + + return 0; +} + +#define ICE_FLOW_PROF_HASH_S 0 +#define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S) +#define ICE_FLOW_PROF_HDR_S 32 +#define ICE_FLOW_PROF_HDR_M (0x3FFFFFFFULL << ICE_FLOW_PROF_HDR_S) +#define ICE_FLOW_PROF_ENCAP_S 62 +#define ICE_FLOW_PROF_ENCAP_M (0x3ULL << ICE_FLOW_PROF_ENCAP_S) + +/* Flow profile ID format: + * [0:31] - Packet match fields + * [32:61] - Protocol header + * [62:63] - Encapsulation flag: + * 0 if non-tunneled + * 1 if tunneled + * 2 for tunneled with outer IPv4 + * 3 for tunneled with outer IPv6 + */ +#define ICE_FLOW_GEN_PROFID(hash, hdr, encap) \ + ((u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \ + (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \ + (((u64)(encap) << ICE_FLOW_PROF_ENCAP_S) & \ + ICE_FLOW_PROF_ENCAP_M))) + +/** + * ice_add_rss_cfg_sync - add an RSS configuration + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @cfg: configure parameters + * + * Assumption: lock has already been acquired for RSS list + */ +static int +ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_prof *prof = NULL; + struct ice_flow_seg_info *segs; + u8 segs_cnt; + int status; + + if (cfg->symm) + return ICE_ERR_PARAM; + + segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? + ICE_FLOW_SEG_SINGLE : + ICE_FLOW_SEG_MAX; + + segs = (struct ice_flow_seg_info *)ice_calloc(hw, segs_cnt, + sizeof(*segs)); + if (!segs) + return ICE_ERR_NO_MEMORY; + + /* Construct the packet segment info from the hashed fields */ + status = ice_flow_set_rss_seg_info(segs, segs_cnt, cfg); + if (status) + goto exit; + + /* Search for a flow profile that has matching headers, hash fields + * and has the input VSI associated to it. If found, no further + * operations required and exit. + */ + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS | + ICE_FLOW_FIND_PROF_CHK_VSI); + if (prof) + goto exit; + + /* Check if a flow profile exists with the same protocol headers and + * associated with the input VSI. If so disassociate the VSI from + * this profile. The VSI will be added to a new profile created with + * the protocol header and new hash field configuration. + */ + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI); + if (prof) { + status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); + if (!status) + ice_rem_rss_list(hw, vsi_handle, prof); + else + goto exit; + + /* Remove profile if it has no VSIs associated */ + if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) { + status = ice_flow_rem_prof(hw, blk, prof->id); + if (status) + goto exit; + } + } + + /* Search for a profile that has same match fields only. If this + * exists then associate the VSI to this profile. + */ + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS); + if (prof) { + status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); + if (!status) + status = ice_add_rss_list(hw, vsi_handle, prof); + goto exit; + } + + /* Create a new flow profile with generated profile and packet + * segment information. + */ + status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX, + ICE_FLOW_GEN_PROFID(cfg->hash_flds, + segs[segs_cnt - 1].hdrs, + cfg->hdr_type), + segs, segs_cnt, NULL, 0, &prof); + if (status) + goto exit; + + status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); + /* If association to a new flow profile failed then this profile can + * be removed. + */ + if (status) { + ice_flow_rem_prof(hw, blk, prof->id); + goto exit; + } + + status = ice_add_rss_list(hw, vsi_handle, prof); + + prof->cfg.symm = cfg->symm; + +exit: + ice_free(hw, segs); + return status; +} + +/** + * ice_add_rss_cfg - add an RSS configuration with specified hashed fields + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @cfg: configure parameters + * + * This function will generate a flow profile based on fields associated with + * the input fields to hash on, the flow type and use the VSI number to add + * a flow entry to the profile. + */ +int +ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) +{ + struct ice_rss_hash_cfg local_cfg; + int status; + + if (!ice_is_vsi_valid(hw, vsi_handle) || !cfg || + cfg->hdr_type > ICE_RSS_ANY_HEADERS || + cfg->hash_flds == ICE_HASH_INVALID) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->rss_locks); + local_cfg = *cfg; + if (cfg->hdr_type < ICE_RSS_ANY_HEADERS) { + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local_cfg); + } else { + local_cfg.hdr_type = ICE_RSS_OUTER_HEADERS; + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local_cfg); + if (!status) { + local_cfg.hdr_type = ICE_RSS_INNER_HEADERS; + status = ice_add_rss_cfg_sync(hw, vsi_handle, + &local_cfg); + } + } + ice_release_lock(&hw->rss_locks); + + return status; +} + +/** + * ice_rem_rss_cfg_sync - remove an existing RSS configuration + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @cfg: configure parameters + * + * Assumption: lock has already been acquired for RSS list + */ +static int +ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_seg_info *segs; + struct ice_flow_prof *prof; + u8 segs_cnt; + int status; + + segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? + ICE_FLOW_SEG_SINGLE : + ICE_FLOW_SEG_MAX; + segs = (struct ice_flow_seg_info *)ice_calloc(hw, segs_cnt, + sizeof(*segs)); + if (!segs) + return ICE_ERR_NO_MEMORY; + + /* Construct the packet segment info from the hashed fields */ + status = ice_flow_set_rss_seg_info(segs, segs_cnt, cfg); + if (status) + goto out; + + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS); + if (!prof) { + status = ICE_ERR_DOES_NOT_EXIST; + goto out; + } + + status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); + if (status) + goto out; + + /* Remove RSS configuration from VSI context before deleting + * the flow profile. + */ + ice_rem_rss_list(hw, vsi_handle, prof); + + if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) + status = ice_flow_rem_prof(hw, blk, prof->id); + +out: + ice_free(hw, segs); + return status; +} + +/** + * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @cfg: configure parameters + * + * This function will lookup the flow profile based on the input + * hash field bitmap, iterate through the profile entry list of + * that profile and find entry associated with input VSI to be + * removed. Calls are made to underlying flow apis which will in + * turn build or update buffers for RSS XLT1 section. + */ +int +ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) +{ + struct ice_rss_hash_cfg local_cfg; + int status; + + if (!ice_is_vsi_valid(hw, vsi_handle) || !cfg || + cfg->hdr_type > ICE_RSS_ANY_HEADERS || + cfg->hash_flds == ICE_HASH_INVALID) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->rss_locks); + local_cfg = *cfg; + if (cfg->hdr_type < ICE_RSS_ANY_HEADERS) { + status = ice_rem_rss_cfg_sync(hw, vsi_handle, &local_cfg); + } else { + local_cfg.hdr_type = ICE_RSS_OUTER_HEADERS; + status = ice_rem_rss_cfg_sync(hw, vsi_handle, &local_cfg); + if (!status) { + local_cfg.hdr_type = ICE_RSS_INNER_HEADERS; + status = ice_rem_rss_cfg_sync(hw, vsi_handle, + &local_cfg); + } + } + ice_release_lock(&hw->rss_locks); + + return status; +} + +/* Mapping of AVF hash bit fields to an L3-L4 hash combination. + * As the ice_flow_avf_hdr_field represent individual bit shifts in a hash, + * convert its values to their appropriate flow L3, L4 values. + */ +#define ICE_FLOW_AVF_RSS_IPV4_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4)) +#define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP)) +#define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP)) +#define ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS \ + (ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS | \ + ICE_FLOW_AVF_RSS_IPV4_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) + +#define ICE_FLOW_AVF_RSS_IPV6_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6)) +#define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP)) +#define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP)) +#define ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS \ + (ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS | \ + ICE_FLOW_AVF_RSS_IPV6_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) + +/** + * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) to configure + * + * This function will take the hash bitmap provided by the AVF driver via a + * message, convert it to ICE-compatible values, and configure RSS flow + * profiles. + */ +int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) +{ + struct ice_rss_hash_cfg hcfg; + int status = 0; + u64 hash_flds; + + if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID || + !ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + /* Make sure no unsupported bits are specified */ + if (avf_hash & ~(ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS | + ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS)) + return ICE_ERR_CFG; + + hash_flds = avf_hash; + + /* Always create an L3 RSS configuration for any L4 RSS configuration */ + if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) + hash_flds |= ICE_FLOW_AVF_RSS_IPV4_MASKS; + + if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) + hash_flds |= ICE_FLOW_AVF_RSS_IPV6_MASKS; + + /* Create the corresponding RSS configuration for each valid hash bit */ + while (hash_flds) { + u64 rss_hash = ICE_HASH_INVALID; + + if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) { + if (hash_flds & ICE_FLOW_AVF_RSS_IPV4_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV4; + hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV4 | + ICE_FLOW_HASH_TCP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV4 | + ICE_FLOW_HASH_UDP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS; + } else if (hash_flds & + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) { + rss_hash = ICE_FLOW_HASH_IPV4 | + ICE_FLOW_HASH_SCTP_PORT; + hash_flds &= + ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP); + } + } else if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) { + if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV6; + hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV6 | + ICE_FLOW_HASH_TCP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV6 | + ICE_FLOW_HASH_UDP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS; + } else if (hash_flds & + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) { + rss_hash = ICE_FLOW_HASH_IPV6 | + ICE_FLOW_HASH_SCTP_PORT; + hash_flds &= + ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP); + } + } + + if (rss_hash == ICE_HASH_INVALID) + return ICE_ERR_OUT_OF_RANGE; + + hcfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE; + hcfg.hash_flds = rss_hash; + hcfg.symm = false; + hcfg.hdr_type = ICE_RSS_ANY_HEADERS; + status = ice_add_rss_cfg(hw, vsi_handle, &hcfg); + if (status) + break; + } + + return status; +} + +/** + * ice_replay_rss_cfg - replay RSS configurations associated with VSI + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + */ +int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle) +{ + struct ice_rss_cfg *r; + int status = 0; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->rss_locks); + LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head, + ice_rss_cfg, l_entry) { + if (ice_is_bit_set(r->vsis, vsi_handle)) { + status = ice_add_rss_cfg_sync(hw, vsi_handle, &r->hash); + if (status) + break; + } + } + ice_release_lock(&hw->rss_locks); + + return status; +} + +/** + * ice_get_rss_cfg - returns hashed fields for the given header types + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @hdrs: protocol header type + * + * This function will return the match fields of the first instance of flow + * profile having the given header types and containing input VSI + */ +u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs) +{ + u64 rss_hash = ICE_HASH_INVALID; + struct ice_rss_cfg *r; + + /* verify if the protocol header is non zero and VSI is valid */ + if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle)) + return ICE_HASH_INVALID; + + ice_acquire_lock(&hw->rss_locks); + LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head, + ice_rss_cfg, l_entry) + if (ice_is_bit_set(r->vsis, vsi_handle) && + r->hash.addl_hdrs == hdrs) { + rss_hash = r->hash.hash_flds; + break; + } + ice_release_lock(&hw->rss_locks); + + return rss_hash; +} |