diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/sdk_dpaa/dpaa_1588.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/sdk_dpaa/dpaa_1588.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_1588.h b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_1588.h new file mode 100644 index 0000000..7339016 --- /dev/null +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_1588.h @@ -0,0 +1,138 @@ +/* Copyright (C) 2011 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ +#ifndef __DPAA_1588_H__ +#define __DPAA_1588_H__ + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/circ_buf.h> +#include <linux/fsl_qman.h> + +#define DEFAULT_PTP_RX_BUF_SZ 256 +#define DEFAULT_PTP_TX_BUF_SZ 256 + +/* 1588 private ioctl calls */ +#define PTP_ENBL_TXTS_IOCTL SIOCDEVPRIVATE +#define PTP_DSBL_TXTS_IOCTL (SIOCDEVPRIVATE + 1) +#define PTP_ENBL_RXTS_IOCTL (SIOCDEVPRIVATE + 2) +#define PTP_DSBL_RXTS_IOCTL (SIOCDEVPRIVATE + 3) +#define PTP_GET_TX_TIMESTAMP (SIOCDEVPRIVATE + 4) +#define PTP_GET_RX_TIMESTAMP (SIOCDEVPRIVATE + 5) +#define PTP_SET_TIME (SIOCDEVPRIVATE + 6) +#define PTP_GET_TIME (SIOCDEVPRIVATE + 7) +#define PTP_SET_FIPER_ALARM (SIOCDEVPRIVATE + 8) +#define PTP_SET_ADJ (SIOCDEVPRIVATE + 9) +#define PTP_GET_ADJ (SIOCDEVPRIVATE + 10) +#define PTP_CLEANUP_TS (SIOCDEVPRIVATE + 11) + +/* PTP V2 message type */ +enum { + PTP_MSGTYPE_SYNC = 0x0, + PTP_MSGTYPE_DELREQ = 0x1, + PTP_MSGTYPE_PDELREQ = 0x2, + PTP_MSGTYPE_PDELRESP = 0x3, + PTP_MSGTYPE_FLWUP = 0x8, + PTP_MSGTYPE_DELRESP = 0x9, + PTP_MSGTYPE_PDELRES_FLWUP = 0xA, + PTP_MSGTYPE_ANNOUNCE = 0xB, + PTP_MSGTYPE_SGNLNG = 0xC, + PTP_MSGTYPE_MNGMNT = 0xD, +}; + +/* Byte offset of data in the PTP V2 headers */ +#define PTP_OFFS_MSG_TYPE 0 +#define PTP_OFFS_VER_PTP 1 +#define PTP_OFFS_MSG_LEN 2 +#define PTP_OFFS_DOM_NMB 4 +#define PTP_OFFS_FLAGS 6 +#define PTP_OFFS_CORFIELD 8 +#define PTP_OFFS_SRCPRTID 20 +#define PTP_OFFS_SEQ_ID 30 +#define PTP_OFFS_CTRL 32 +#define PTP_OFFS_LOGMEAN 33 + +#define PTP_IP_OFFS 14 +#define PTP_UDP_OFFS 34 +#define PTP_HEADER_OFFS 42 +#define PTP_MSG_TYPE_OFFS (PTP_HEADER_OFFS + PTP_OFFS_MSG_TYPE) +#define PTP_SPORT_ID_OFFS (PTP_HEADER_OFFS + PTP_OFFS_SRCPRTID) +#define PTP_SEQ_ID_OFFS (PTP_HEADER_OFFS + PTP_OFFS_SEQ_ID) +#define PTP_CTRL_OFFS (PTP_HEADER_OFFS + PTP_OFFS_CTRL) + +/* 1588-2008 network protocol enumeration values */ +#define DPA_PTP_PROT_IPV4 1 +#define DPA_PTP_PROT_IPV6 2 +#define DPA_PTP_PROT_802_3 3 +#define DPA_PTP_PROT_DONTCARE 0xFFFF + +#define DPA_PTP_SOURCE_PORT_LENGTH 10 +#define DPA_PTP_HEADER_SZE 34 +#define DPA_ETYPE_LEN 2 +#define DPA_VLAN_TAG_LEN 4 +#define NANOSEC_PER_SECOND 1000000000 + +/* The threshold between the current found one and the oldest one */ +#define TS_ACCUMULATION_THRESHOLD 50 + +/* Struct needed to identify a timestamp */ +struct dpa_ptp_ident { + u8 version; + u8 msg_type; + u16 netw_prot; + u16 seq_id; + u8 snd_port_id[DPA_PTP_SOURCE_PORT_LENGTH]; +}; + +/* Timestamp format in 1588-2008 */ +struct dpa_ptp_time { + u64 sec; /* just 48 bit used */ + u32 nsec; +}; + +/* needed for timestamp data over ioctl */ +struct dpa_ptp_data { + struct dpa_ptp_ident ident; + struct dpa_ptp_time ts; +}; + +struct dpa_ptp_circ_buf { + struct circ_buf circ_buf; + u32 size; + spinlock_t ptp_lock; +}; + +/* PTP TSU control structure */ +struct dpa_ptp_tsu { + struct dpa_priv_s *dpa_priv; + bool valid; + struct dpa_ptp_circ_buf rx_timestamps; + struct dpa_ptp_circ_buf tx_timestamps; + + /* HW timestamping over ioctl enabled flag */ + int hwts_tx_en_ioctl; + int hwts_rx_en_ioctl; +}; + +extern int dpa_ptp_init(struct dpa_priv_s *priv); +extern void dpa_ptp_cleanup(struct dpa_priv_s *priv); +extern void dpa_ptp_store_txstamp(const struct dpa_priv_s *priv, + struct sk_buff *skb, void *data); +extern void dpa_ptp_store_rxstamp(const struct dpa_priv_s *priv, + struct sk_buff *skb, void *data); +extern int dpa_ioctl_1588(struct net_device *dev, struct ifreq *ifr, int cmd); +#endif |