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/*
* Copyright (C) 2017 Netronome Systems, Inc.
*
* This software is dual licensed under the GNU General License Version 2,
* June 1991 as shown in the file COPYING in the top-level directory of this
* source tree or the BSD 2-Clause License provided below. You have the
* option to license this software under the complete terms of either license.
*
* The BSD 2-Clause License:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef NFP_FLOWER_CMSG_H
#define NFP_FLOWER_CMSG_H
#include <linux/bitfield.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include "../nfp_app.h"
#include "../nfpcore/nfp_cpp.h"
#define NFP_FLOWER_LAYER_EXT_META BIT(0)
#define NFP_FLOWER_LAYER_PORT BIT(1)
#define NFP_FLOWER_LAYER_MAC BIT(2)
#define NFP_FLOWER_LAYER_TP BIT(3)
#define NFP_FLOWER_LAYER_IPV4 BIT(4)
#define NFP_FLOWER_LAYER_IPV6 BIT(5)
#define NFP_FLOWER_LAYER_CT BIT(6)
#define NFP_FLOWER_LAYER_VXLAN BIT(7)
#define NFP_FLOWER_LAYER2_GENEVE BIT(5)
#define NFP_FLOWER_MASK_VLAN_PRIO GENMASK(15, 13)
#define NFP_FLOWER_MASK_VLAN_CFI BIT(12)
#define NFP_FLOWER_MASK_VLAN_VID GENMASK(11, 0)
#define NFP_FLOWER_MASK_MPLS_LB GENMASK(31, 12)
#define NFP_FLOWER_MASK_MPLS_TC GENMASK(11, 9)
#define NFP_FLOWER_MASK_MPLS_BOS BIT(8)
#define NFP_FLOWER_MASK_MPLS_Q BIT(0)
#define NFP_FL_IP_FRAG_FIRST BIT(7)
#define NFP_FL_IP_FRAGMENTED BIT(6)
/* Compressed HW representation of TCP Flags */
#define NFP_FL_TCP_FLAG_URG BIT(4)
#define NFP_FL_TCP_FLAG_PSH BIT(3)
#define NFP_FL_TCP_FLAG_RST BIT(2)
#define NFP_FL_TCP_FLAG_SYN BIT(1)
#define NFP_FL_TCP_FLAG_FIN BIT(0)
#define NFP_FL_SC_ACT_DROP 0x80000000
#define NFP_FL_SC_ACT_USER 0x7D000000
#define NFP_FL_SC_ACT_POPV 0x6A000000
#define NFP_FL_SC_ACT_NULL 0x00000000
/* The maximum action list size (in bytes) supported by the NFP.
*/
#define NFP_FL_MAX_A_SIZ 1216
#define NFP_FL_LW_SIZ 2
/* Action opcodes */
#define NFP_FL_ACTION_OPCODE_OUTPUT 0
#define NFP_FL_ACTION_OPCODE_PUSH_VLAN 1
#define NFP_FL_ACTION_OPCODE_POP_VLAN 2
#define NFP_FL_ACTION_OPCODE_SET_IPV4_TUNNEL 6
#define NFP_FL_ACTION_OPCODE_SET_ETHERNET 7
#define NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS 9
#define NFP_FL_ACTION_OPCODE_SET_IPV6_SRC 11
#define NFP_FL_ACTION_OPCODE_SET_IPV6_DST 12
#define NFP_FL_ACTION_OPCODE_SET_UDP 14
#define NFP_FL_ACTION_OPCODE_SET_TCP 15
#define NFP_FL_ACTION_OPCODE_PRE_TUNNEL 17
#define NFP_FL_ACTION_OPCODE_NUM 32
#define NFP_FL_OUT_FLAGS_LAST BIT(15)
#define NFP_FL_OUT_FLAGS_USE_TUN BIT(4)
#define NFP_FL_OUT_FLAGS_TYPE_IDX GENMASK(2, 0)
#define NFP_FL_PUSH_VLAN_PRIO GENMASK(15, 13)
#define NFP_FL_PUSH_VLAN_CFI BIT(12)
#define NFP_FL_PUSH_VLAN_VID GENMASK(11, 0)
/* Tunnel ports */
#define NFP_FL_PORT_TYPE_TUN 0x50000000
#define NFP_FL_IPV4_TUNNEL_TYPE GENMASK(7, 4)
#define NFP_FL_IPV4_PRE_TUN_INDEX GENMASK(2, 0)
#define NFP_FLOWER_WORKQ_MAX_SKBS 30000
#define nfp_flower_cmsg_warn(app, fmt, args...) \
do { \
if (net_ratelimit()) \
nfp_warn((app)->cpp, fmt, ## args); \
} while (0)
enum nfp_flower_tun_type {
NFP_FL_TUNNEL_NONE = 0,
NFP_FL_TUNNEL_VXLAN = 2,
NFP_FL_TUNNEL_GENEVE = 4,
};
struct nfp_fl_act_head {
u8 jump_id;
u8 len_lw;
};
struct nfp_fl_set_eth {
struct nfp_fl_act_head head;
__be16 reserved;
u8 eth_addr_mask[ETH_ALEN * 2];
u8 eth_addr_val[ETH_ALEN * 2];
};
struct nfp_fl_set_ip4_addrs {
struct nfp_fl_act_head head;
__be16 reserved;
__be32 ipv4_src_mask;
__be32 ipv4_src;
__be32 ipv4_dst_mask;
__be32 ipv4_dst;
};
struct nfp_fl_set_ipv6_addr {
struct nfp_fl_act_head head;
__be16 reserved;
struct {
__be32 mask;
__be32 exact;
} ipv6[4];
};
struct nfp_fl_set_tport {
struct nfp_fl_act_head head;
__be16 reserved;
u8 tp_port_mask[4];
u8 tp_port_val[4];
};
struct nfp_fl_output {
struct nfp_fl_act_head head;
__be16 flags;
__be32 port;
};
struct nfp_fl_push_vlan {
struct nfp_fl_act_head head;
__be16 reserved;
__be16 vlan_tpid;
__be16 vlan_tci;
};
struct nfp_fl_pop_vlan {
struct nfp_fl_act_head head;
__be16 reserved;
};
struct nfp_fl_pre_tunnel {
struct nfp_fl_act_head head;
__be16 reserved;
__be32 ipv4_dst;
/* reserved for use with IPv6 addresses */
__be32 extra[3];
};
struct nfp_fl_set_ipv4_udp_tun {
struct nfp_fl_act_head head;
__be16 reserved;
__be64 tun_id __packed;
__be32 tun_type_index;
__be16 reserved2;
u8 ttl;
u8 reserved3;
__be32 extra[2];
};
/* Metadata with L2 (1W/4B)
* ----------------------------------------------------------------
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | key_type | mask_id | PCP |p| vlan outermost VID |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* ^ ^
* NOTE: | TCI |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_meta_tci {
u8 nfp_flow_key_layer;
u8 mask_id;
__be16 tci;
};
/* Extended metadata for additional key_layers (1W/4B)
* ----------------------------------------------------------------
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | nfp_flow_key_layer2 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_ext_meta {
__be32 nfp_flow_key_layer2;
};
/* Port details (1W/4B)
* ----------------------------------------------------------------
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | port_ingress |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_in_port {
__be32 in_port;
};
/* L2 details (4W/16B)
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | mac_addr_dst, 31 - 0 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | mac_addr_dst, 47 - 32 | mac_addr_src, 15 - 0 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | mac_addr_src, 47 - 16 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | mpls outermost label | TC |B| reserved |q|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_mac_mpls {
u8 mac_dst[6];
u8 mac_src[6];
__be32 mpls_lse;
};
/* L4 ports (for UDP, TCP, SCTP) (1W/4B)
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | port_src | port_dst |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_tp_ports {
__be16 port_src;
__be16 port_dst;
};
struct nfp_flower_ip_ext {
u8 tos;
u8 proto;
u8 ttl;
u8 flags;
};
/* L3 IPv4 details (3W/12B)
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | DSCP |ECN| protocol | ttl | flags |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv4_addr_src |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv4_addr_dst |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_ipv4 {
struct nfp_flower_ip_ext ip_ext;
__be32 ipv4_src;
__be32 ipv4_dst;
};
/* L3 IPv6 details (10W/40B)
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | DSCP |ECN| protocol | ttl | flags |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_exthdr | res | ipv6_flow_label |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_src, 31 - 0 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_src, 63 - 32 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_src, 95 - 64 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_src, 127 - 96 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_dst, 31 - 0 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_dst, 63 - 32 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_dst, 95 - 64 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_addr_dst, 127 - 96 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_ipv6 {
struct nfp_flower_ip_ext ip_ext;
__be32 ipv6_flow_label_exthdr;
struct in6_addr ipv6_src;
struct in6_addr ipv6_dst;
};
/* Flow Frame IPv4 UDP TUNNEL --> Tunnel details (4W/16B)
* -----------------------------------------------------------------
* 3 2 1
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv4_addr_src |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv4_addr_dst |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Reserved |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Reserved |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | VNI | Reserved |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_ipv4_udp_tun {
__be32 ip_src;
__be32 ip_dst;
__be32 reserved[2];
__be32 tun_id;
};
#define NFP_FL_TUN_VNI_OFFSET 8
/* The base header for a control message packet.
* Defines an 8-bit version, and an 8-bit type, padded
* to a 32-bit word. Rest of the packet is type-specific.
*/
struct nfp_flower_cmsg_hdr {
__be16 pad;
u8 type;
u8 version;
};
#define NFP_FLOWER_CMSG_HLEN sizeof(struct nfp_flower_cmsg_hdr)
#define NFP_FLOWER_CMSG_VER1 1
/* Types defined for port related control messages */
enum nfp_flower_cmsg_type_port {
NFP_FLOWER_CMSG_TYPE_FLOW_ADD = 0,
NFP_FLOWER_CMSG_TYPE_FLOW_DEL = 2,
NFP_FLOWER_CMSG_TYPE_PORT_REIFY = 6,
NFP_FLOWER_CMSG_TYPE_MAC_REPR = 7,
NFP_FLOWER_CMSG_TYPE_PORT_MOD = 8,
NFP_FLOWER_CMSG_TYPE_NO_NEIGH = 10,
NFP_FLOWER_CMSG_TYPE_TUN_MAC = 11,
NFP_FLOWER_CMSG_TYPE_ACTIVE_TUNS = 12,
NFP_FLOWER_CMSG_TYPE_TUN_NEIGH = 13,
NFP_FLOWER_CMSG_TYPE_TUN_IPS = 14,
NFP_FLOWER_CMSG_TYPE_FLOW_STATS = 15,
NFP_FLOWER_CMSG_TYPE_PORT_ECHO = 16,
NFP_FLOWER_CMSG_TYPE_MAX = 32,
};
/* NFP_FLOWER_CMSG_TYPE_MAC_REPR */
struct nfp_flower_cmsg_mac_repr {
u8 reserved[3];
u8 num_ports;
struct {
u8 idx;
u8 info;
u8 nbi_port;
u8 phys_port;
} ports[0];
};
#define NFP_FLOWER_CMSG_MAC_REPR_NBI GENMASK(1, 0)
/* NFP_FLOWER_CMSG_TYPE_PORT_MOD */
struct nfp_flower_cmsg_portmod {
__be32 portnum;
u8 reserved;
u8 info;
__be16 mtu;
};
#define NFP_FLOWER_CMSG_PORTMOD_INFO_LINK BIT(0)
#define NFP_FLOWER_CMSG_PORTMOD_MTU_CHANGE_ONLY BIT(1)
/* NFP_FLOWER_CMSG_TYPE_PORT_REIFY */
struct nfp_flower_cmsg_portreify {
__be32 portnum;
u16 reserved;
__be16 info;
};
#define NFP_FLOWER_CMSG_PORTREIFY_INFO_EXIST BIT(0)
enum nfp_flower_cmsg_port_type {
NFP_FLOWER_CMSG_PORT_TYPE_UNSPEC = 0x0,
NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT = 0x1,
NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT = 0x2,
NFP_FLOWER_CMSG_PORT_TYPE_OTHER_PORT = 0x3,
};
enum nfp_flower_cmsg_port_vnic_type {
NFP_FLOWER_CMSG_PORT_VNIC_TYPE_VF = 0x0,
NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF = 0x1,
NFP_FLOWER_CMSG_PORT_VNIC_TYPE_CTRL = 0x2,
};
#define NFP_FLOWER_CMSG_PORT_TYPE GENMASK(31, 28)
#define NFP_FLOWER_CMSG_PORT_SYS_ID GENMASK(27, 24)
#define NFP_FLOWER_CMSG_PORT_NFP_ID GENMASK(23, 22)
#define NFP_FLOWER_CMSG_PORT_PCI GENMASK(15, 14)
#define NFP_FLOWER_CMSG_PORT_VNIC_TYPE GENMASK(13, 12)
#define NFP_FLOWER_CMSG_PORT_VNIC GENMASK(11, 6)
#define NFP_FLOWER_CMSG_PORT_PCIE_Q GENMASK(5, 0)
#define NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM GENMASK(7, 0)
static inline u32 nfp_flower_cmsg_phys_port(u8 phys_port)
{
return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM, phys_port) |
FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT);
}
static inline u32
nfp_flower_cmsg_pcie_port(u8 nfp_pcie, enum nfp_flower_cmsg_port_vnic_type type,
u8 vnic, u8 q)
{
return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCI, nfp_pcie) |
FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC_TYPE, type) |
FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC, vnic) |
FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCIE_Q, q) |
FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT);
}
static inline void *nfp_flower_cmsg_get_data(struct sk_buff *skb)
{
return (unsigned char *)skb->data + NFP_FLOWER_CMSG_HLEN;
}
static inline int nfp_flower_cmsg_get_data_len(struct sk_buff *skb)
{
return skb->len - NFP_FLOWER_CMSG_HLEN;
}
struct sk_buff *
nfp_flower_cmsg_mac_repr_start(struct nfp_app *app, unsigned int num_ports);
void
nfp_flower_cmsg_mac_repr_add(struct sk_buff *skb, unsigned int idx,
unsigned int nbi, unsigned int nbi_port,
unsigned int phys_port);
int nfp_flower_cmsg_portmod(struct nfp_repr *repr, bool carrier_ok,
unsigned int mtu, bool mtu_only);
int nfp_flower_cmsg_portreify(struct nfp_repr *repr, bool exists);
void nfp_flower_cmsg_process_rx(struct work_struct *work);
void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb);
struct sk_buff *
nfp_flower_cmsg_alloc(struct nfp_app *app, unsigned int size,
enum nfp_flower_cmsg_type_port type, gfp_t flag);
#endif
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