diff options
Diffstat (limited to 'include/linux/dsa/ocelot.h')
| -rw-r--r-- | include/linux/dsa/ocelot.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/include/linux/dsa/ocelot.h b/include/linux/dsa/ocelot.h new file mode 100644 index 000000000000..4265f328681a --- /dev/null +++ b/include/linux/dsa/ocelot.h @@ -0,0 +1,223 @@ +/* SPDX-License-Identifier: GPL-2.0 + * Copyright 2019-2021 NXP Semiconductors + */ + +#ifndef _NET_DSA_TAG_OCELOT_H +#define _NET_DSA_TAG_OCELOT_H + +#include <linux/packing.h> + +#define OCELOT_TAG_LEN 16 +#define OCELOT_SHORT_PREFIX_LEN 4 +#define OCELOT_LONG_PREFIX_LEN 16 +#define OCELOT_TOTAL_TAG_LEN (OCELOT_SHORT_PREFIX_LEN + OCELOT_TAG_LEN) + +/* The CPU injection header and the CPU extraction header can have 3 types of + * prefixes: long, short and no prefix. The format of the header itself is the + * same in all 3 cases. + * + * Extraction with long prefix: + * + * +-------------------+-------------------+------+------+------------+-------+ + * | ff:ff:ff:ff:ff:ff | fe:ff:ff:ff:ff:ff | 8880 | 000a | extraction | frame | + * | | | | | header | | + * +-------------------+-------------------+------+------+------------+-------+ + * 48 bits 48 bits 16 bits 16 bits 128 bits + * + * Extraction with short prefix: + * + * +------+------+------------+-------+ + * | 8880 | 000a | extraction | frame | + * | | | header | | + * +------+------+------------+-------+ + * 16 bits 16 bits 128 bits + * + * Extraction with no prefix: + * + * +------------+-------+ + * | extraction | frame | + * | header | | + * +------------+-------+ + * 128 bits + * + * + * Injection with long prefix: + * + * +-------------------+-------------------+------+------+------------+-------+ + * | any dmac | any smac | 8880 | 000a | injection | frame | + * | | | | | header | | + * +-------------------+-------------------+------+------+------------+-------+ + * 48 bits 48 bits 16 bits 16 bits 128 bits + * + * Injection with short prefix: + * + * +------+------+------------+-------+ + * | 8880 | 000a | injection | frame | + * | | | header | | + * +------+------+------------+-------+ + * 16 bits 16 bits 128 bits + * + * Injection with no prefix: + * + * +------------+-------+ + * | injection | frame | + * | header | | + * +------------+-------+ + * 128 bits + * + * The injection header looks like this (network byte order, bit 127 + * is part of lowest address byte in memory, bit 0 is part of highest + * address byte): + * + * +------+------+------+------+------+------+------+------+ + * 127:120 |BYPASS| MASQ | MASQ_PORT |REW_OP|REW_OP| + * +------+------+------+------+------+------+------+------+ + * 119:112 | REW_OP | + * +------+------+------+------+------+------+------+------+ + * 111:104 | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 103: 96 | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 95: 88 | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 87: 80 | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 79: 72 | RSV | + * +------+------+------+------+------+------+------+------+ + * 71: 64 | RSV | DEST | + * +------+------+------+------+------+------+------+------+ + * 63: 56 | DEST | + * +------+------+------+------+------+------+------+------+ + * 55: 48 | RSV | + * +------+------+------+------+------+------+------+------+ + * 47: 40 | RSV | SRC_PORT | RSV |TFRM_TIMER| + * +------+------+------+------+------+------+------+------+ + * 39: 32 | TFRM_TIMER | RSV | + * +------+------+------+------+------+------+------+------+ + * 31: 24 | RSV | DP | POP_CNT | CPUQ | + * +------+------+------+------+------+------+------+------+ + * 23: 16 | CPUQ | QOS_CLASS |TAG_TYPE| + * +------+------+------+------+------+------+------+------+ + * 15: 8 | PCP | DEI | VID | + * +------+------+------+------+------+------+------+------+ + * 7: 0 | VID | + * +------+------+------+------+------+------+------+------+ + * + * And the extraction header looks like this: + * + * +------+------+------+------+------+------+------+------+ + * 127:120 | RSV | REW_OP | + * +------+------+------+------+------+------+------+------+ + * 119:112 | REW_OP | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 111:104 | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 103: 96 | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 95: 88 | REW_VAL | + * +------+------+------+------+------+------+------+------+ + * 87: 80 | REW_VAL | LLEN | + * +------+------+------+------+------+------+------+------+ + * 79: 72 | LLEN | WLEN | + * +------+------+------+------+------+------+------+------+ + * 71: 64 | WLEN | RSV | + * +------+------+------+------+------+------+------+------+ + * 63: 56 | RSV | + * +------+------+------+------+------+------+------+------+ + * 55: 48 | RSV | + * +------+------+------+------+------+------+------+------+ + * 47: 40 | RSV | SRC_PORT | ACL_ID | + * +------+------+------+------+------+------+------+------+ + * 39: 32 | ACL_ID | RSV | SFLOW_ID | + * +------+------+------+------+------+------+------+------+ + * 31: 24 |ACL_HIT| DP | LRN_FLAGS | CPUQ | + * +------+------+------+------+------+------+------+------+ + * 23: 16 | CPUQ | QOS_CLASS |TAG_TYPE| + * +------+------+------+------+------+------+------+------+ + * 15: 8 | PCP | DEI | VID | + * +------+------+------+------+------+------+------+------+ + * 7: 0 | VID | + * +------+------+------+------+------+------+------+------+ + */ + +static inline void ocelot_xfh_get_rew_val(void *extraction, u64 *rew_val) +{ + packing(extraction, rew_val, 116, 85, OCELOT_TAG_LEN, UNPACK, 0); +} + +static inline void ocelot_xfh_get_len(void *extraction, u64 *len) +{ + u64 llen, wlen; + + packing(extraction, &llen, 84, 79, OCELOT_TAG_LEN, UNPACK, 0); + packing(extraction, &wlen, 78, 71, OCELOT_TAG_LEN, UNPACK, 0); + + *len = 60 * wlen + llen - 80; +} + +static inline void ocelot_xfh_get_src_port(void *extraction, u64 *src_port) +{ + packing(extraction, src_port, 46, 43, OCELOT_TAG_LEN, UNPACK, 0); +} + +static inline void ocelot_xfh_get_cpuq(void *extraction, u64 *cpuq) +{ + packing(extraction, cpuq, 28, 20, OCELOT_TAG_LEN, UNPACK, 0); +} + +static inline void ocelot_xfh_get_qos_class(void *extraction, u64 *qos_class) +{ + packing(extraction, qos_class, 19, 17, OCELOT_TAG_LEN, UNPACK, 0); +} + +static inline void ocelot_xfh_get_tag_type(void *extraction, u64 *tag_type) +{ + packing(extraction, tag_type, 16, 16, OCELOT_TAG_LEN, UNPACK, 0); +} + +static inline void ocelot_xfh_get_vlan_tci(void *extraction, u64 *vlan_tci) +{ + packing(extraction, vlan_tci, 15, 0, OCELOT_TAG_LEN, UNPACK, 0); +} + +static inline void ocelot_ifh_set_bypass(void *injection, u64 bypass) +{ + packing(injection, &bypass, 127, 127, OCELOT_TAG_LEN, PACK, 0); +} + +static inline void ocelot_ifh_set_rew_op(void *injection, u64 rew_op) +{ + packing(injection, &rew_op, 125, 117, OCELOT_TAG_LEN, PACK, 0); +} + +static inline void ocelot_ifh_set_dest(void *injection, u64 dest) +{ + packing(injection, &dest, 67, 56, OCELOT_TAG_LEN, PACK, 0); +} + +static inline void ocelot_ifh_set_qos_class(void *injection, u64 qos_class) +{ + packing(injection, &qos_class, 19, 17, OCELOT_TAG_LEN, PACK, 0); +} + +static inline void seville_ifh_set_dest(void *injection, u64 dest) +{ + packing(injection, &dest, 67, 57, OCELOT_TAG_LEN, PACK, 0); +} + +static inline void ocelot_ifh_set_src(void *injection, u64 src) +{ + packing(injection, &src, 46, 43, OCELOT_TAG_LEN, PACK, 0); +} + +static inline void ocelot_ifh_set_tag_type(void *injection, u64 tag_type) +{ + packing(injection, &tag_type, 16, 16, OCELOT_TAG_LEN, PACK, 0); +} + +static inline void ocelot_ifh_set_vid(void *injection, u64 vid) +{ + packing(injection, &vid, 11, 0, OCELOT_TAG_LEN, PACK, 0); +} + +#endif |