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339 lines
12 KiB
339 lines
12 KiB
/*
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* Copyright (C) 2017 Netronome Systems, Inc.
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*
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* This software is dual licensed under the GNU General License Version 2,
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* June 1991 as shown in the file COPYING in the top-level directory of this
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* source tree or the BSD 2-Clause License provided below. You have the
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* option to license this software under the complete terms of either license.
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*
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* The BSD 2-Clause License:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef NFP_FLOWER_CMSG_H
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#define NFP_FLOWER_CMSG_H
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#include <linux/bitfield.h>
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#include <linux/skbuff.h>
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#include <linux/types.h>
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#include "../nfp_app.h"
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#define NFP_FLOWER_LAYER_META BIT(0)
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#define NFP_FLOWER_LAYER_PORT BIT(1)
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#define NFP_FLOWER_LAYER_MAC BIT(2)
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#define NFP_FLOWER_LAYER_TP BIT(3)
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#define NFP_FLOWER_LAYER_IPV4 BIT(4)
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#define NFP_FLOWER_LAYER_IPV6 BIT(5)
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#define NFP_FLOWER_LAYER_CT BIT(6)
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#define NFP_FLOWER_LAYER_VXLAN BIT(7)
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#define NFP_FLOWER_LAYER_ETHER BIT(3)
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#define NFP_FLOWER_LAYER_ARP BIT(4)
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#define NFP_FLOWER_MASK_VLAN_PRIO GENMASK(15, 13)
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#define NFP_FLOWER_MASK_VLAN_CFI BIT(12)
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#define NFP_FLOWER_MASK_VLAN_VID GENMASK(11, 0)
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#define NFP_FL_SC_ACT_DROP 0x80000000
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#define NFP_FL_SC_ACT_USER 0x7D000000
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#define NFP_FL_SC_ACT_POPV 0x6A000000
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#define NFP_FL_SC_ACT_NULL 0x00000000
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/* The maximum action list size (in bytes) supported by the NFP.
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*/
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#define NFP_FL_MAX_A_SIZ 1216
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#define NFP_FL_LW_SIZ 2
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/* Action opcodes */
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#define NFP_FL_ACTION_OPCODE_OUTPUT 0
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#define NFP_FL_ACTION_OPCODE_PUSH_VLAN 1
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#define NFP_FL_ACTION_OPCODE_POP_VLAN 2
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#define NFP_FL_ACTION_OPCODE_NUM 32
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#define NFP_FL_ACT_JMP_ID GENMASK(15, 8)
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#define NFP_FL_ACT_LEN_LW GENMASK(7, 0)
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#define NFP_FL_OUT_FLAGS_LAST BIT(15)
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#define NFP_FL_OUT_FLAGS_USE_TUN BIT(4)
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#define NFP_FL_OUT_FLAGS_TYPE_IDX GENMASK(2, 0)
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#define NFP_FL_PUSH_VLAN_PRIO GENMASK(15, 13)
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#define NFP_FL_PUSH_VLAN_CFI BIT(12)
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#define NFP_FL_PUSH_VLAN_VID GENMASK(11, 0)
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struct nfp_fl_output {
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__be16 a_op;
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__be16 flags;
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__be32 port;
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};
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struct nfp_fl_push_vlan {
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__be16 a_op;
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__be16 reserved;
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__be16 vlan_tpid;
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__be16 vlan_tci;
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};
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struct nfp_fl_pop_vlan {
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__be16 a_op;
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__be16 reserved;
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};
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/* Metadata without L2 (1W/4B)
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* ----------------------------------------------------------------
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* 3 2 1
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* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | key_layers | mask_id | reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct nfp_flower_meta_one {
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u8 nfp_flow_key_layer;
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u8 mask_id;
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u16 reserved;
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};
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/* Metadata with L2 (1W/4B)
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* ----------------------------------------------------------------
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* 3 2 1
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* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | key_type | mask_id | PCP |p| vlan outermost VID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* ^ ^
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* NOTE: | TCI |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct nfp_flower_meta_two {
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u8 nfp_flow_key_layer;
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u8 mask_id;
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__be16 tci;
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};
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/* Port details (1W/4B)
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* ----------------------------------------------------------------
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* 3 2 1
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* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | port_ingress |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct nfp_flower_in_port {
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__be32 in_port;
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};
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/* L2 details (4W/16B)
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* 3 2 1
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* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | mac_addr_dst, 31 - 0 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | mac_addr_dst, 47 - 32 | mac_addr_src, 15 - 0 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | mac_addr_src, 47 - 16 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | mpls outermost label | TC |B| reserved |q|
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct nfp_flower_mac_mpls {
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u8 mac_dst[6];
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u8 mac_src[6];
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__be32 mpls_lse;
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};
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/* L4 ports (for UDP, TCP, SCTP) (1W/4B)
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* 3 2 1
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* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | port_src | port_dst |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct nfp_flower_tp_ports {
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__be16 port_src;
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__be16 port_dst;
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};
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/* L3 IPv4 details (3W/12B)
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* 3 2 1
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* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | DSCP |ECN| protocol | reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv4_addr_src |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv4_addr_dst |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct nfp_flower_ipv4 {
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u8 tos;
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u8 proto;
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u8 ttl;
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u8 reserved;
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__be32 ipv4_src;
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__be32 ipv4_dst;
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};
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/* L3 IPv6 details (10W/40B)
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* 3 2 1
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* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | DSCP |ECN| protocol | reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_exthdr | res | ipv6_flow_label |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_src, 31 - 0 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_src, 63 - 32 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_src, 95 - 64 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_src, 127 - 96 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_dst, 31 - 0 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_dst, 63 - 32 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_dst, 95 - 64 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | ipv6_addr_dst, 127 - 96 |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct nfp_flower_ipv6 {
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u8 tos;
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u8 proto;
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u8 ttl;
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u8 reserved;
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__be32 ipv6_flow_label_exthdr;
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struct in6_addr ipv6_src;
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struct in6_addr ipv6_dst;
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};
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/* The base header for a control message packet.
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* Defines an 8-bit version, and an 8-bit type, padded
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* to a 32-bit word. Rest of the packet is type-specific.
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*/
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struct nfp_flower_cmsg_hdr {
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__be16 pad;
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u8 type;
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u8 version;
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};
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#define NFP_FLOWER_CMSG_HLEN sizeof(struct nfp_flower_cmsg_hdr)
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#define NFP_FLOWER_CMSG_VER1 1
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/* Types defined for port related control messages */
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enum nfp_flower_cmsg_type_port {
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NFP_FLOWER_CMSG_TYPE_FLOW_ADD = 0,
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NFP_FLOWER_CMSG_TYPE_FLOW_DEL = 2,
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NFP_FLOWER_CMSG_TYPE_MAC_REPR = 7,
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NFP_FLOWER_CMSG_TYPE_PORT_MOD = 8,
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NFP_FLOWER_CMSG_TYPE_FLOW_STATS = 15,
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NFP_FLOWER_CMSG_TYPE_PORT_ECHO = 16,
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NFP_FLOWER_CMSG_TYPE_MAX = 32,
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};
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/* NFP_FLOWER_CMSG_TYPE_MAC_REPR */
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struct nfp_flower_cmsg_mac_repr {
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u8 reserved[3];
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u8 num_ports;
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struct {
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u8 idx;
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u8 info;
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u8 nbi_port;
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u8 phys_port;
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} ports[0];
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};
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#define NFP_FLOWER_CMSG_MAC_REPR_NBI GENMASK(1, 0)
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/* NFP_FLOWER_CMSG_TYPE_PORT_MOD */
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struct nfp_flower_cmsg_portmod {
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__be32 portnum;
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u8 reserved;
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u8 info;
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__be16 mtu;
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};
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#define NFP_FLOWER_CMSG_PORTMOD_INFO_LINK BIT(0)
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enum nfp_flower_cmsg_port_type {
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NFP_FLOWER_CMSG_PORT_TYPE_UNSPEC = 0x0,
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NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT = 0x1,
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NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT = 0x2,
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};
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enum nfp_flower_cmsg_port_vnic_type {
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NFP_FLOWER_CMSG_PORT_VNIC_TYPE_VF = 0x0,
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NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF = 0x1,
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NFP_FLOWER_CMSG_PORT_VNIC_TYPE_CTRL = 0x2,
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};
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#define NFP_FLOWER_CMSG_PORT_TYPE GENMASK(31, 28)
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#define NFP_FLOWER_CMSG_PORT_SYS_ID GENMASK(27, 24)
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#define NFP_FLOWER_CMSG_PORT_NFP_ID GENMASK(23, 22)
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#define NFP_FLOWER_CMSG_PORT_PCI GENMASK(15, 14)
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#define NFP_FLOWER_CMSG_PORT_VNIC_TYPE GENMASK(13, 12)
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#define NFP_FLOWER_CMSG_PORT_VNIC GENMASK(11, 6)
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#define NFP_FLOWER_CMSG_PORT_PCIE_Q GENMASK(5, 0)
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#define NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM GENMASK(7, 0)
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static inline u32 nfp_flower_cmsg_phys_port(u8 phys_port)
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{
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return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM, phys_port) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
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NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT);
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}
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static inline u32
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nfp_flower_cmsg_pcie_port(u8 nfp_pcie, enum nfp_flower_cmsg_port_vnic_type type,
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u8 vnic, u8 q)
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{
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return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCI, nfp_pcie) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC_TYPE, type) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC, vnic) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCIE_Q, q) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
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NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT);
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}
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static inline void *nfp_flower_cmsg_get_data(struct sk_buff *skb)
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{
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return (unsigned char *)skb->data + NFP_FLOWER_CMSG_HLEN;
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}
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struct sk_buff *
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nfp_flower_cmsg_mac_repr_start(struct nfp_app *app, unsigned int num_ports);
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void
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nfp_flower_cmsg_mac_repr_add(struct sk_buff *skb, unsigned int idx,
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unsigned int nbi, unsigned int nbi_port,
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unsigned int phys_port);
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int nfp_flower_cmsg_portmod(struct nfp_repr *repr, bool carrier_ok);
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void nfp_flower_cmsg_process_rx(struct work_struct *work);
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void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb);
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struct sk_buff *
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nfp_flower_cmsg_alloc(struct nfp_app *app, unsigned int size,
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enum nfp_flower_cmsg_type_port type);
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#endif
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