/* SPDX-License-Identifier: GPL-2.0 * Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com> */ /* Included by drivers/net/dsa/sja1105/sja1105.h and net/dsa/tag_sja1105.c */ #ifndef _NET_DSA_SJA1105_H #define _NET_DSA_SJA1105_H #include <linux/skbuff.h> #include <linux/etherdevice.h> #include <linux/dsa/8021q.h> #include <net/dsa.h> #define ETH_P_SJA1105 ETH_P_DSA_8021Q #define ETH_P_SJA1105_META 0x0008 #define ETH_P_SJA1110 0xdadc #define SJA1105_DEFAULT_VLAN (VLAN_N_VID - 1) /* IEEE 802.3 Annex 57A: Slow Protocols PDUs (01:80:C2:xx:xx:xx) */ #define SJA1105_LINKLOCAL_FILTER_A 0x0180C2000000ull #define SJA1105_LINKLOCAL_FILTER_A_MASK 0xFFFFFF000000ull /* IEEE 1588 Annex F: Transport of PTP over Ethernet (01:1B:19:xx:xx:xx) */ #define SJA1105_LINKLOCAL_FILTER_B 0x011B19000000ull #define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFF000000ull /* Source and Destination MAC of follow-up meta frames. * Whereas the choice of SMAC only affects the unique identification of the * switch as sender of meta frames, the DMAC must be an address that is present * in the DSA conduit port's multicast MAC filter. * 01-80-C2-00-00-0E is a good choice for this, as all profiles of IEEE 1588 * over L2 use this address for some purpose already. */ #define SJA1105_META_SMAC 0x222222222222ull #define SJA1105_META_DMAC 0x0180C200000Eull enum sja1110_meta_tstamp { SJA1110_META_TSTAMP_TX = 0, SJA1110_META_TSTAMP_RX = 1, }; struct sja1105_deferred_xmit_work { struct dsa_port *dp; struct sk_buff *skb; struct kthread_work work; }; /* Global tagger data */ struct sja1105_tagger_data { void (*xmit_work_fn)(struct kthread_work *work); void (*meta_tstamp_handler)(struct dsa_switch *ds, int port, u8 ts_id, enum sja1110_meta_tstamp dir, u64 tstamp); }; struct sja1105_skb_cb { struct sk_buff *clone; u64 tstamp; /* Only valid for packets cloned for 2-step TX timestamping */ u8 ts_id; }; #define SJA1105_SKB_CB(skb) \ ((struct sja1105_skb_cb *)((skb)->cb)) static inline struct sja1105_tagger_data * sja1105_tagger_data(struct dsa_switch *ds) { BUG_ON(ds->dst->tag_ops->proto != DSA_TAG_PROTO_SJA1105 && ds->dst->tag_ops->proto != DSA_TAG_PROTO_SJA1110); return ds->tagger_data; } #endif /* _NET_DSA_SJA1105_H */