80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/* 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 master 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 {
|
|
/* Tagger to switch */
|
|
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);
|
|
/* Switch to tagger */
|
|
bool (*rxtstamp_get_state)(struct dsa_switch *ds);
|
|
void (*rxtstamp_set_state)(struct dsa_switch *ds, bool on);
|
|
};
|
|
|
|
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 */
|