1 /* SPDX-License-Identifier: GPL-2.0 2 * Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com> 3 */ 4 5 /* Included by drivers/net/dsa/sja1105/sja1105.h and net/dsa/tag_sja1105.c */ 6 7 #ifndef _NET_DSA_SJA1105_H 8 #define _NET_DSA_SJA1105_H 9 10 #include <linux/skbuff.h> 11 #include <linux/etherdevice.h> 12 #include <linux/dsa/8021q.h> 13 #include <net/dsa.h> 14 15 #define ETH_P_SJA1105 ETH_P_DSA_8021Q 16 #define ETH_P_SJA1105_META 0x0008 17 18 /* IEEE 802.3 Annex 57A: Slow Protocols PDUs (01:80:C2:xx:xx:xx) */ 19 #define SJA1105_LINKLOCAL_FILTER_A 0x0180C2000000ull 20 #define SJA1105_LINKLOCAL_FILTER_A_MASK 0xFFFFFF000000ull 21 /* IEEE 1588 Annex F: Transport of PTP over Ethernet (01:1B:19:xx:xx:xx) */ 22 #define SJA1105_LINKLOCAL_FILTER_B 0x011B19000000ull 23 #define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFF000000ull 24 25 /* Source and Destination MAC of follow-up meta frames. 26 * Whereas the choice of SMAC only affects the unique identification of the 27 * switch as sender of meta frames, the DMAC must be an address that is present 28 * in the DSA master port's multicast MAC filter. 29 * 01-80-C2-00-00-0E is a good choice for this, as all profiles of IEEE 1588 30 * over L2 use this address for some purpose already. 31 */ 32 #define SJA1105_META_SMAC 0x222222222222ull 33 #define SJA1105_META_DMAC 0x0180C200000Eull 34 35 #define SJA1105_HWTS_RX_EN 0 36 37 /* Global tagger data: each struct sja1105_port has a reference to 38 * the structure defined in struct sja1105_private. 39 */ 40 struct sja1105_tagger_data { 41 struct sk_buff *stampable_skb; 42 /* Protects concurrent access to the meta state machine 43 * from taggers running on multiple ports on SMP systems 44 */ 45 spinlock_t meta_lock; 46 unsigned long state; 47 }; 48 49 struct sja1105_skb_cb { 50 struct sk_buff *clone; 51 u32 meta_tstamp; 52 }; 53 54 #define SJA1105_SKB_CB(skb) \ 55 ((struct sja1105_skb_cb *)((skb)->cb)) 56 57 struct sja1105_port { 58 u16 subvlan_map[DSA_8021Q_N_SUBVLAN]; 59 struct kthread_worker *xmit_worker; 60 struct kthread_work xmit_work; 61 struct sk_buff_head xmit_queue; 62 struct sja1105_tagger_data *data; 63 struct dsa_port *dp; 64 bool hwts_tx_en; 65 u16 xmit_tpid; 66 }; 67 68 #endif /* _NET_DSA_SJA1105_H */ 69