1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun * Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com> 3*4882a593Smuzhiyun */ 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* Included by drivers/net/dsa/sja1105/sja1105.h and net/dsa/tag_sja1105.c */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef _NET_DSA_SJA1105_H 8*4882a593Smuzhiyun #define _NET_DSA_SJA1105_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <linux/skbuff.h> 11*4882a593Smuzhiyun #include <linux/etherdevice.h> 12*4882a593Smuzhiyun #include <linux/dsa/8021q.h> 13*4882a593Smuzhiyun #include <net/dsa.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #define ETH_P_SJA1105 ETH_P_DSA_8021Q 16*4882a593Smuzhiyun #define ETH_P_SJA1105_META 0x0008 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun /* IEEE 802.3 Annex 57A: Slow Protocols PDUs (01:80:C2:xx:xx:xx) */ 19*4882a593Smuzhiyun #define SJA1105_LINKLOCAL_FILTER_A 0x0180C2000000ull 20*4882a593Smuzhiyun #define SJA1105_LINKLOCAL_FILTER_A_MASK 0xFFFFFF000000ull 21*4882a593Smuzhiyun /* IEEE 1588 Annex F: Transport of PTP over Ethernet (01:1B:19:xx:xx:xx) */ 22*4882a593Smuzhiyun #define SJA1105_LINKLOCAL_FILTER_B 0x011B19000000ull 23*4882a593Smuzhiyun #define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFF000000ull 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun /* Source and Destination MAC of follow-up meta frames. 26*4882a593Smuzhiyun * Whereas the choice of SMAC only affects the unique identification of the 27*4882a593Smuzhiyun * switch as sender of meta frames, the DMAC must be an address that is present 28*4882a593Smuzhiyun * in the DSA master port's multicast MAC filter. 29*4882a593Smuzhiyun * 01-80-C2-00-00-0E is a good choice for this, as all profiles of IEEE 1588 30*4882a593Smuzhiyun * over L2 use this address for some purpose already. 31*4882a593Smuzhiyun */ 32*4882a593Smuzhiyun #define SJA1105_META_SMAC 0x222222222222ull 33*4882a593Smuzhiyun #define SJA1105_META_DMAC 0x0180C200000Eull 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #define SJA1105_HWTS_RX_EN 0 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* Global tagger data: each struct sja1105_port has a reference to 38*4882a593Smuzhiyun * the structure defined in struct sja1105_private. 39*4882a593Smuzhiyun */ 40*4882a593Smuzhiyun struct sja1105_tagger_data { 41*4882a593Smuzhiyun struct sk_buff *stampable_skb; 42*4882a593Smuzhiyun /* Protects concurrent access to the meta state machine 43*4882a593Smuzhiyun * from taggers running on multiple ports on SMP systems 44*4882a593Smuzhiyun */ 45*4882a593Smuzhiyun spinlock_t meta_lock; 46*4882a593Smuzhiyun unsigned long state; 47*4882a593Smuzhiyun }; 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun struct sja1105_skb_cb { 50*4882a593Smuzhiyun u32 meta_tstamp; 51*4882a593Smuzhiyun }; 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #define SJA1105_SKB_CB(skb) \ 54*4882a593Smuzhiyun ((struct sja1105_skb_cb *)DSA_SKB_CB_PRIV(skb)) 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun struct sja1105_port { 57*4882a593Smuzhiyun u16 subvlan_map[DSA_8021Q_N_SUBVLAN]; 58*4882a593Smuzhiyun struct kthread_worker *xmit_worker; 59*4882a593Smuzhiyun struct kthread_work xmit_work; 60*4882a593Smuzhiyun struct sk_buff_head xmit_queue; 61*4882a593Smuzhiyun struct sja1105_tagger_data *data; 62*4882a593Smuzhiyun struct dsa_port *dp; 63*4882a593Smuzhiyun bool hwts_tx_en; 64*4882a593Smuzhiyun u16 xmit_tpid; 65*4882a593Smuzhiyun }; 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun #endif /* _NET_DSA_SJA1105_H */ 68