mirror of
https://github.com/Fishwaldo/Star64_linux.git
synced 2025-07-23 07:12:09 +00:00
dba1d918da
The classifier configuration for RSS is quite complex, with several
lookup tables being used. This commit adds useful info in debugfs to
see how the different tables are configured :
Added 2 new entries in the per-port directory :
- .../eth0/default_rxq : The default rx queue on that port
- .../eth0/rss_enable : Indicates if RSS is enabled in the C2 entry
Added the 'flows' directory :
It contains one entry per sub-flow. a 'sub-flow' is a unique path from
Header Parser to the flow table. Multiple sub-flows can point to the
same 'flow' (each flow has an id from 8 to 29, which is its index in the
Lookup Id table) :
- .../flows/00/...
/01/...
...
/51/id : The flow id. There are 21 unique flows. There's one
flow per combination of the following parameters :
- L4 protocol (TCP, UDP, none)
- L3 protocol (IPv4, IPv6)
- L3 parameters (Fragmented or not)
- L2 parameters (Vlan tag presence or not)
.../type : The flow type. This is an even higher level flow,
that we manipulate with ethtool. It can be :
"udp4" "tcp4" "udp6" "tcp6" "ipv4" "ipv6" "other".
.../eth0/...
.../eth1/engine : The hash generation engine used for this
flow on the given port
.../hash_opts : The hash generation options indicating on
what data we base the hash (vlan tag, src
IP, src port, etc.)
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
227 lines
6 KiB
C
227 lines
6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* RSS and Classifier definitions for Marvell PPv2 Network Controller
|
|
*
|
|
* Copyright (C) 2014 Marvell
|
|
*
|
|
* Marcin Wojtas <mw@semihalf.com>
|
|
*/
|
|
|
|
#ifndef _MVPP2_CLS_H_
|
|
#define _MVPP2_CLS_H_
|
|
|
|
#include "mvpp2.h"
|
|
#include "mvpp2_prs.h"
|
|
|
|
/* Classifier constants */
|
|
#define MVPP2_CLS_FLOWS_TBL_SIZE 512
|
|
#define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 3
|
|
#define MVPP2_CLS_LKP_TBL_SIZE 64
|
|
#define MVPP2_CLS_RX_QUEUES 256
|
|
|
|
/* Classifier flow constants */
|
|
|
|
#define MVPP2_FLOW_N_FIELDS 4
|
|
|
|
enum mvpp2_cls_engine {
|
|
MVPP22_CLS_ENGINE_C2 = 1,
|
|
MVPP22_CLS_ENGINE_C3A,
|
|
MVPP22_CLS_ENGINE_C3B,
|
|
MVPP22_CLS_ENGINE_C4,
|
|
MVPP22_CLS_ENGINE_C3HA = 6,
|
|
MVPP22_CLS_ENGINE_C3HB = 7,
|
|
};
|
|
|
|
#define MVPP22_CLS_HEK_OPT_MAC_DA BIT(0)
|
|
#define MVPP22_CLS_HEK_OPT_VLAN BIT(1)
|
|
#define MVPP22_CLS_HEK_OPT_L3_PROTO BIT(2)
|
|
#define MVPP22_CLS_HEK_OPT_IP4SA BIT(3)
|
|
#define MVPP22_CLS_HEK_OPT_IP4DA BIT(4)
|
|
#define MVPP22_CLS_HEK_OPT_IP6SA BIT(5)
|
|
#define MVPP22_CLS_HEK_OPT_IP6DA BIT(6)
|
|
#define MVPP22_CLS_HEK_OPT_L4SIP BIT(7)
|
|
#define MVPP22_CLS_HEK_OPT_L4DIP BIT(8)
|
|
#define MVPP22_CLS_HEK_N_FIELDS 9
|
|
|
|
#define MVPP22_CLS_HEK_L4_OPTS (MVPP22_CLS_HEK_OPT_L4SIP | \
|
|
MVPP22_CLS_HEK_OPT_L4DIP)
|
|
|
|
#define MVPP22_CLS_HEK_IP4_2T (MVPP22_CLS_HEK_OPT_IP4SA | \
|
|
MVPP22_CLS_HEK_OPT_IP4DA)
|
|
|
|
#define MVPP22_CLS_HEK_IP6_2T (MVPP22_CLS_HEK_OPT_IP6SA | \
|
|
MVPP22_CLS_HEK_OPT_IP6DA)
|
|
|
|
/* The fifth tuple in "5T" is the L4_Info field */
|
|
#define MVPP22_CLS_HEK_IP4_5T (MVPP22_CLS_HEK_IP4_2T | \
|
|
MVPP22_CLS_HEK_L4_OPTS)
|
|
|
|
#define MVPP22_CLS_HEK_IP6_5T (MVPP22_CLS_HEK_IP6_2T | \
|
|
MVPP22_CLS_HEK_L4_OPTS)
|
|
|
|
enum mvpp2_cls_field_id {
|
|
MVPP22_CLS_FIELD_MAC_DA = 0x03,
|
|
MVPP22_CLS_FIELD_VLAN = 0x06,
|
|
MVPP22_CLS_FIELD_L3_PROTO = 0x0f,
|
|
MVPP22_CLS_FIELD_IP4SA = 0x10,
|
|
MVPP22_CLS_FIELD_IP4DA = 0x11,
|
|
MVPP22_CLS_FIELD_IP6SA = 0x17,
|
|
MVPP22_CLS_FIELD_IP6DA = 0x1a,
|
|
MVPP22_CLS_FIELD_L4SIP = 0x1d,
|
|
MVPP22_CLS_FIELD_L4DIP = 0x1e,
|
|
};
|
|
|
|
enum mvpp2_cls_flow_seq {
|
|
MVPP2_CLS_FLOW_SEQ_NORMAL = 0,
|
|
MVPP2_CLS_FLOW_SEQ_FIRST1,
|
|
MVPP2_CLS_FLOW_SEQ_FIRST2,
|
|
MVPP2_CLS_FLOW_SEQ_LAST,
|
|
MVPP2_CLS_FLOW_SEQ_MIDDLE
|
|
};
|
|
|
|
/* Classifier C2 engine constants */
|
|
#define MVPP22_CLS_C2_TCAM_EN(data) ((data) << 16)
|
|
|
|
enum mvpp22_cls_c2_action {
|
|
MVPP22_C2_NO_UPD = 0,
|
|
MVPP22_C2_NO_UPD_LOCK,
|
|
MVPP22_C2_UPD,
|
|
MVPP22_C2_UPD_LOCK,
|
|
};
|
|
|
|
enum mvpp22_cls_c2_fwd_action {
|
|
MVPP22_C2_FWD_NO_UPD = 0,
|
|
MVPP22_C2_FWD_NO_UPD_LOCK,
|
|
MVPP22_C2_FWD_SW,
|
|
MVPP22_C2_FWD_SW_LOCK,
|
|
MVPP22_C2_FWD_HW,
|
|
MVPP22_C2_FWD_HW_LOCK,
|
|
MVPP22_C2_FWD_HW_LOW_LAT,
|
|
MVPP22_C2_FWD_HW_LOW_LAT_LOCK,
|
|
};
|
|
|
|
#define MVPP2_CLS_C2_TCAM_WORDS 5
|
|
#define MVPP2_CLS_C2_ATTR_WORDS 5
|
|
|
|
struct mvpp2_cls_c2_entry {
|
|
u32 index;
|
|
u32 tcam[MVPP2_CLS_C2_TCAM_WORDS];
|
|
u32 act;
|
|
u32 attr[MVPP2_CLS_C2_ATTR_WORDS];
|
|
};
|
|
|
|
/* Classifier C2 engine entries */
|
|
#define MVPP22_CLS_C2_RSS_ENTRY(port) (port)
|
|
#define MVPP22_CLS_C2_N_ENTRIES MVPP2_MAX_PORTS
|
|
|
|
/* RSS flow entries in the flow table. We have 2 entries per port for RSS.
|
|
*
|
|
* The first performs a lookup using the C2 TCAM engine, to tag the
|
|
* packet for software forwarding (needed for RSS), enable or disable RSS, and
|
|
* assign the default rx queue.
|
|
*
|
|
* The second configures the hash generation, by specifying which fields of the
|
|
* packet header are used to generate the hash, and specifies the relevant hash
|
|
* engine to use.
|
|
*/
|
|
#define MVPP22_RSS_FLOW_C2_OFFS 0
|
|
#define MVPP22_RSS_FLOW_HASH_OFFS 1
|
|
#define MVPP22_RSS_FLOW_SIZE (MVPP22_RSS_FLOW_HASH_OFFS + 1)
|
|
|
|
#define MVPP22_RSS_FLOW_C2(port) ((port) * MVPP22_RSS_FLOW_SIZE + \
|
|
MVPP22_RSS_FLOW_C2_OFFS)
|
|
#define MVPP22_RSS_FLOW_HASH(port) ((port) * MVPP22_RSS_FLOW_SIZE + \
|
|
MVPP22_RSS_FLOW_HASH_OFFS)
|
|
#define MVPP22_RSS_FLOW_FIRST(port) MVPP22_RSS_FLOW_C2(port)
|
|
|
|
/* Packet flow ID */
|
|
enum mvpp2_prs_flow {
|
|
MVPP2_FL_START = 8,
|
|
MVPP2_FL_IP4_TCP_NF_UNTAG = MVPP2_FL_START,
|
|
MVPP2_FL_IP4_UDP_NF_UNTAG,
|
|
MVPP2_FL_IP4_TCP_NF_TAG,
|
|
MVPP2_FL_IP4_UDP_NF_TAG,
|
|
MVPP2_FL_IP6_TCP_NF_UNTAG,
|
|
MVPP2_FL_IP6_UDP_NF_UNTAG,
|
|
MVPP2_FL_IP6_TCP_NF_TAG,
|
|
MVPP2_FL_IP6_UDP_NF_TAG,
|
|
MVPP2_FL_IP4_TCP_FRAG_UNTAG,
|
|
MVPP2_FL_IP4_UDP_FRAG_UNTAG,
|
|
MVPP2_FL_IP4_TCP_FRAG_TAG,
|
|
MVPP2_FL_IP4_UDP_FRAG_TAG,
|
|
MVPP2_FL_IP6_TCP_FRAG_UNTAG,
|
|
MVPP2_FL_IP6_UDP_FRAG_UNTAG,
|
|
MVPP2_FL_IP6_TCP_FRAG_TAG,
|
|
MVPP2_FL_IP6_UDP_FRAG_TAG,
|
|
MVPP2_FL_IP4_UNTAG, /* non-TCP, non-UDP, same for below */
|
|
MVPP2_FL_IP4_TAG,
|
|
MVPP2_FL_IP6_UNTAG,
|
|
MVPP2_FL_IP6_TAG,
|
|
MVPP2_FL_NON_IP_UNTAG,
|
|
MVPP2_FL_NON_IP_TAG,
|
|
MVPP2_FL_LAST,
|
|
};
|
|
|
|
struct mvpp2_cls_flow {
|
|
/* The L2-L4 traffic flow type */
|
|
int flow_type;
|
|
|
|
/* The first id in the flow table for this flow */
|
|
u16 flow_id;
|
|
|
|
/* The supported HEK fields for this flow */
|
|
u16 supported_hash_opts;
|
|
|
|
/* The Header Parser result_info that matches this flow */
|
|
struct mvpp2_prs_result_info prs_ri;
|
|
};
|
|
|
|
#define MVPP2_N_FLOWS 52
|
|
|
|
#define MVPP2_ENTRIES_PER_FLOW (MVPP2_MAX_PORTS + 1)
|
|
#define MVPP2_FLOW_C2_ENTRY(id) ((id) * MVPP2_ENTRIES_PER_FLOW)
|
|
#define MVPP2_PORT_FLOW_HASH_ENTRY(port, id) ((id) * MVPP2_ENTRIES_PER_FLOW + \
|
|
(port) + 1)
|
|
struct mvpp2_cls_flow_entry {
|
|
u32 index;
|
|
u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
|
|
};
|
|
|
|
struct mvpp2_cls_lookup_entry {
|
|
u32 lkpid;
|
|
u32 way;
|
|
u32 data;
|
|
};
|
|
|
|
void mvpp22_rss_fill_table(struct mvpp2_port *port, u32 table);
|
|
|
|
void mvpp22_rss_port_init(struct mvpp2_port *port);
|
|
|
|
void mvpp22_rss_enable(struct mvpp2_port *port);
|
|
void mvpp22_rss_disable(struct mvpp2_port *port);
|
|
|
|
int mvpp2_ethtool_rxfh_get(struct mvpp2_port *port, struct ethtool_rxnfc *info);
|
|
int mvpp2_ethtool_rxfh_set(struct mvpp2_port *port, struct ethtool_rxnfc *info);
|
|
|
|
void mvpp2_cls_init(struct mvpp2 *priv);
|
|
|
|
void mvpp2_cls_port_config(struct mvpp2_port *port);
|
|
|
|
void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port);
|
|
|
|
int mvpp2_cls_flow_eng_get(struct mvpp2_cls_flow_entry *fe);
|
|
|
|
u16 mvpp2_flow_get_hek_fields(struct mvpp2_cls_flow_entry *fe);
|
|
|
|
struct mvpp2_cls_flow *mvpp2_cls_flow_get(int flow);
|
|
|
|
void mvpp2_cls_flow_read(struct mvpp2 *priv, int index,
|
|
struct mvpp2_cls_flow_entry *fe);
|
|
|
|
void mvpp2_cls_lookup_read(struct mvpp2 *priv, int lkpid, int way,
|
|
struct mvpp2_cls_lookup_entry *le);
|
|
|
|
void mvpp2_cls_c2_read(struct mvpp2 *priv, int index,
|
|
struct mvpp2_cls_c2_entry *c2);
|
|
|
|
#endif
|