Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright Gavin Shan, IBM Corporation 2016.
 */
 
#ifndef __NCSI_INTERNAL_H__
#define __NCSI_INTERNAL_H__
 
enum {
<------>NCSI_CAP_BASE		= 0,
<------>NCSI_CAP_GENERIC	= 0,
<------>NCSI_CAP_BC,
<------>NCSI_CAP_MC,
<------>NCSI_CAP_BUFFER,
<------>NCSI_CAP_AEN,
<------>NCSI_CAP_VLAN,
<------>NCSI_CAP_MAX
};
 
enum {
<------>NCSI_CAP_GENERIC_HWA             = 0x01, /* HW arbitration           */
<------>NCSI_CAP_GENERIC_HDS             = 0x02, /* HNC driver status change */
<------>NCSI_CAP_GENERIC_FC              = 0x04, /* HNC to MC flow control   */
<------>NCSI_CAP_GENERIC_FC1             = 0x08, /* MC to HNC flow control   */
<------>NCSI_CAP_GENERIC_MC              = 0x10, /* Global MC filtering      */
<------>NCSI_CAP_GENERIC_HWA_UNKNOWN     = 0x00, /* Unknown HW arbitration   */
<------>NCSI_CAP_GENERIC_HWA_SUPPORT     = 0x20, /* Supported HW arbitration */
<------>NCSI_CAP_GENERIC_HWA_NOT_SUPPORT = 0x40, /* No HW arbitration        */
<------>NCSI_CAP_GENERIC_HWA_RESERVED    = 0x60, /* Reserved HW arbitration  */
<------>NCSI_CAP_GENERIC_HWA_MASK        = 0x60, /* Mask for HW arbitration  */
<------>NCSI_CAP_GENERIC_MASK            = 0x7f,
<------>NCSI_CAP_BC_ARP                  = 0x01, /* ARP packet filtering     */
<------>NCSI_CAP_BC_DHCPC                = 0x02, /* DHCP client filtering    */
<------>NCSI_CAP_BC_DHCPS                = 0x04, /* DHCP server filtering    */
<------>NCSI_CAP_BC_NETBIOS              = 0x08, /* NetBIOS packet filtering */
<------>NCSI_CAP_BC_MASK                 = 0x0f,
<------>NCSI_CAP_MC_IPV6_NEIGHBOR        = 0x01, /* IPv6 neighbor filtering  */
<------>NCSI_CAP_MC_IPV6_ROUTER          = 0x02, /* IPv6 router filering     */
<------>NCSI_CAP_MC_DHCPV6_RELAY         = 0x04, /* DHCPv6 relay / server MC */
<------>NCSI_CAP_MC_DHCPV6_WELL_KNOWN    = 0x08, /* DHCPv6 well-known MC     */
<------>NCSI_CAP_MC_IPV6_MLD             = 0x10, /* IPv6 MLD filtering       */
<------>NCSI_CAP_MC_IPV6_NEIGHBOR_S      = 0x20, /* IPv6 neighbour filtering */
<------>NCSI_CAP_MC_MASK                 = 0x3f,
<------>NCSI_CAP_AEN_LSC                 = 0x01, /* Link status change       */
<------>NCSI_CAP_AEN_CR                  = 0x02, /* Configuration required   */
<------>NCSI_CAP_AEN_HDS                 = 0x04, /* HNC driver status        */
<------>NCSI_CAP_AEN_MASK                = 0x07,
<------>NCSI_CAP_VLAN_ONLY               = 0x01, /* Filter VLAN packet only  */
<------>NCSI_CAP_VLAN_NO                 = 0x02, /* Filter VLAN and non-VLAN */
<------>NCSI_CAP_VLAN_ANY                = 0x04, /* Filter Any-and-non-VLAN  */
<------>NCSI_CAP_VLAN_MASK               = 0x07
};
 
enum {
<------>NCSI_MODE_BASE		= 0,
<------>NCSI_MODE_ENABLE	= 0,
<------>NCSI_MODE_TX_ENABLE,
<------>NCSI_MODE_LINK,
<------>NCSI_MODE_VLAN,
<------>NCSI_MODE_BC,
<------>NCSI_MODE_MC,
<------>NCSI_MODE_AEN,
<------>NCSI_MODE_FC,
<------>NCSI_MODE_MAX
};
 
/* Supported media status bits for Mellanox Mac affinity command.
 * Bit (0-2) for different protocol support; Bit 1 for RBT support,
 * bit 1 for SMBUS support and bit 2 for PCIE support. Bit (3-5)
 * for different protocol availability. Bit 4 for RBT, bit 4 for
 * SMBUS and bit 5 for PCIE.
 */
enum {
<------>MLX_MC_RBT_SUPPORT  = 0x01, /* MC supports RBT         */
<------>MLX_MC_RBT_AVL      = 0x08, /* RBT medium is available */
};
 
/* OEM Vendor Manufacture ID */
#define NCSI_OEM_MFR_MLX_ID             0x8119
#define NCSI_OEM_MFR_BCM_ID             0x113d
/* Broadcom specific OEM Command */
#define NCSI_OEM_BCM_CMD_GMA            0x01   /* CMD ID for Get MAC */
/* Mellanox specific OEM Command */
#define NCSI_OEM_MLX_CMD_GMA            0x00   /* CMD ID for Get MAC */
#define NCSI_OEM_MLX_CMD_GMA_PARAM      0x1b   /* Parameter for GMA  */
#define NCSI_OEM_MLX_CMD_SMAF           0x01   /* CMD ID for Set MC Affinity */
#define NCSI_OEM_MLX_CMD_SMAF_PARAM     0x07   /* Parameter for SMAF         */
/* OEM Command payload lengths*/
#define NCSI_OEM_BCM_CMD_GMA_LEN        12
#define NCSI_OEM_MLX_CMD_GMA_LEN        8
#define NCSI_OEM_MLX_CMD_SMAF_LEN        60
/* Offset in OEM request */
#define MLX_SMAF_MAC_ADDR_OFFSET         8     /* Offset for MAC in SMAF    */
#define MLX_SMAF_MED_SUPPORT_OFFSET      14    /* Offset for medium in SMAF */
/* Mac address offset in OEM response */
#define BCM_MAC_ADDR_OFFSET             28
#define MLX_MAC_ADDR_OFFSET             8
 
 
struct ncsi_channel_version {
<------>u32 version;		/* Supported BCD encoded NCSI version */
<------>u32 alpha2;		/* Supported BCD encoded NCSI version */
<------>u8  fw_name[12];	/* Firware name string                */
<------>u32 fw_version;		/* Firmware version                   */
<------>u16 pci_ids[4];		/* PCI identification                 */
<------>u32 mf_id;		/* Manufacture ID                     */
};
 
struct ncsi_channel_cap {
<------>u32 index;	/* Index of channel capabilities */
<------>u32 cap;	/* NCSI channel capability       */
};
 
struct ncsi_channel_mode {
<------>u32 index;	/* Index of channel modes      */
<------>u32 enable;	/* Enabled or disabled         */
<------>u32 size;	/* Valid entries in ncm_data[] */
<------>u32 data[8];	/* Data entries                */
};
 
struct ncsi_channel_mac_filter {
<------>u8	n_uc;
<------>u8	n_mc;
<------>u8	n_mixed;
<------>u64	bitmap;
<------>unsigned char	*addrs;
};
 
struct ncsi_channel_vlan_filter {
<------>u8	n_vids;
<------>u64	bitmap;
<------>u16	*vids;
};
 
struct ncsi_channel_stats {
<------>u32 hnc_cnt_hi;		/* Counter cleared            */
<------>u32 hnc_cnt_lo;		/* Counter cleared            */
<------>u32 hnc_rx_bytes;	/* Rx bytes                   */
<------>u32 hnc_tx_bytes;	/* Tx bytes                   */
<------>u32 hnc_rx_uc_pkts;	/* Rx UC packets              */
<------>u32 hnc_rx_mc_pkts;     /* Rx MC packets              */
<------>u32 hnc_rx_bc_pkts;	/* Rx BC packets              */
<------>u32 hnc_tx_uc_pkts;	/* Tx UC packets              */
<------>u32 hnc_tx_mc_pkts;	/* Tx MC packets              */
<------>u32 hnc_tx_bc_pkts;	/* Tx BC packets              */
<------>u32 hnc_fcs_err;	/* FCS errors                 */
<------>u32 hnc_align_err;	/* Alignment errors           */
<------>u32 hnc_false_carrier;	/* False carrier detection    */
<------>u32 hnc_runt_pkts;	/* Rx runt packets            */
<------>u32 hnc_jabber_pkts;	/* Rx jabber packets          */
<------>u32 hnc_rx_pause_xon;	/* Rx pause XON frames        */
<------>u32 hnc_rx_pause_xoff;	/* Rx XOFF frames             */
<------>u32 hnc_tx_pause_xon;	/* Tx XON frames              */
<------>u32 hnc_tx_pause_xoff;	/* Tx XOFF frames             */
<------>u32 hnc_tx_s_collision;	/* Single collision frames    */
<------>u32 hnc_tx_m_collision;	/* Multiple collision frames  */
<------>u32 hnc_l_collision;	/* Late collision frames      */
<------>u32 hnc_e_collision;	/* Excessive collision frames */
<------>u32 hnc_rx_ctl_frames;	/* Rx control frames          */
<------>u32 hnc_rx_64_frames;	/* Rx 64-bytes frames         */
<------>u32 hnc_rx_127_frames;	/* Rx 65-127 bytes frames     */
<------>u32 hnc_rx_255_frames;	/* Rx 128-255 bytes frames    */
<------>u32 hnc_rx_511_frames;	/* Rx 256-511 bytes frames    */
<------>u32 hnc_rx_1023_frames;	/* Rx 512-1023 bytes frames   */
<------>u32 hnc_rx_1522_frames;	/* Rx 1024-1522 bytes frames  */
<------>u32 hnc_rx_9022_frames;	/* Rx 1523-9022 bytes frames  */
<------>u32 hnc_tx_64_frames;	/* Tx 64-bytes frames         */
<------>u32 hnc_tx_127_frames;	/* Tx 65-127 bytes frames     */
<------>u32 hnc_tx_255_frames;	/* Tx 128-255 bytes frames    */
<------>u32 hnc_tx_511_frames;	/* Tx 256-511 bytes frames    */
<------>u32 hnc_tx_1023_frames;	/* Tx 512-1023 bytes frames   */
<------>u32 hnc_tx_1522_frames;	/* Tx 1024-1522 bytes frames  */
<------>u32 hnc_tx_9022_frames;	/* Tx 1523-9022 bytes frames  */
<------>u32 hnc_rx_valid_bytes;	/* Rx valid bytes             */
<------>u32 hnc_rx_runt_pkts;	/* Rx error runt packets      */
<------>u32 hnc_rx_jabber_pkts;	/* Rx error jabber packets    */
<------>u32 ncsi_rx_cmds;	/* Rx NCSI commands           */
<------>u32 ncsi_dropped_cmds;	/* Dropped commands           */
<------>u32 ncsi_cmd_type_errs;	/* Command type errors        */
<------>u32 ncsi_cmd_csum_errs;	/* Command checksum errors    */
<------>u32 ncsi_rx_pkts;	/* Rx NCSI packets            */
<------>u32 ncsi_tx_pkts;	/* Tx NCSI packets            */
<------>u32 ncsi_tx_aen_pkts;	/* Tx AEN packets             */
<------>u32 pt_tx_pkts;		/* Tx packets                 */
<------>u32 pt_tx_dropped;	/* Tx dropped packets         */
<------>u32 pt_tx_channel_err;	/* Tx channel errors          */
<------>u32 pt_tx_us_err;	/* Tx undersize errors        */
<------>u32 pt_rx_pkts;		/* Rx packets                 */
<------>u32 pt_rx_dropped;	/* Rx dropped packets         */
<------>u32 pt_rx_channel_err;	/* Rx channel errors          */
<------>u32 pt_rx_us_err;	/* Rx undersize errors        */
<------>u32 pt_rx_os_err;	/* Rx oversize errors         */
};
 
struct ncsi_dev_priv;
struct ncsi_package;
 
#define NCSI_PACKAGE_SHIFT	5
#define NCSI_PACKAGE_INDEX(c)	(((c) >> NCSI_PACKAGE_SHIFT) & 0x7)
#define NCSI_RESERVED_CHANNEL	0x1f
#define NCSI_CHANNEL_INDEX(c)	((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1))
#define NCSI_TO_CHANNEL(p, c)	(((p) << NCSI_PACKAGE_SHIFT) | (c))
#define NCSI_MAX_PACKAGE	8
#define NCSI_MAX_CHANNEL	32
 
struct ncsi_channel {
<------>unsigned char               id;
<------>int                         state;
#define NCSI_CHANNEL_INACTIVE		1
#define NCSI_CHANNEL_ACTIVE		2
#define NCSI_CHANNEL_INVISIBLE		3
<------>bool                        reconfigure_needed;
<------>spinlock_t                  lock;	/* Protect filters etc */
<------>struct ncsi_package         *package;
<------>struct ncsi_channel_version version;
<------>struct ncsi_channel_cap	    caps[NCSI_CAP_MAX];
<------>struct ncsi_channel_mode    modes[NCSI_MODE_MAX];
<------>/* Filtering Settings */
<------>struct ncsi_channel_mac_filter	mac_filter;
<------>struct ncsi_channel_vlan_filter	vlan_filter;
<------>struct ncsi_channel_stats   stats;
<------>struct {
<------><------>struct timer_list   timer;
<------><------>bool                enabled;
<------><------>unsigned int        state;
#define NCSI_CHANNEL_MONITOR_START	0
#define NCSI_CHANNEL_MONITOR_RETRY	1
#define NCSI_CHANNEL_MONITOR_WAIT	2
#define NCSI_CHANNEL_MONITOR_WAIT_MAX	5
<------>} monitor;
<------>struct list_head            node;
<------>struct list_head            link;
};
 
struct ncsi_package {
<------>unsigned char        id;          /* NCSI 3-bits package ID */
<------>unsigned char        uuid[16];    /* UUID                   */
<------>struct ncsi_dev_priv *ndp;        /* NCSI device            */
<------>spinlock_t           lock;        /* Protect the package    */
<------>unsigned int         channel_num; /* Number of channels     */
<------>struct list_head     channels;    /* List of chanels        */
<------>struct list_head     node;        /* Form list of packages  */
 
<------>bool                 multi_channel; /* Enable multiple channels  */
<------>u32                  channel_whitelist; /* Channels to configure */
<------>struct ncsi_channel  *preferred_channel; /* Primary channel      */
};
 
struct ncsi_request {
<------>unsigned char        id;      /* Request ID - 0 to 255           */
<------>bool                 used;    /* Request that has been assigned  */
<------>unsigned int         flags;   /* NCSI request property           */
#define NCSI_REQ_FLAG_EVENT_DRIVEN	1
#define NCSI_REQ_FLAG_NETLINK_DRIVEN	2
<------>struct ncsi_dev_priv *ndp;    /* Associated NCSI device          */
<------>struct sk_buff       *cmd;    /* Associated NCSI command packet  */
<------>struct sk_buff       *rsp;    /* Associated NCSI response packet */
<------>struct timer_list    timer;   /* Timer on waiting for response   */
<------>bool                 enabled; /* Time has been enabled or not    */
<------>u32                  snd_seq;     /* netlink sending sequence number */
<------>u32                  snd_portid;  /* netlink portid of sender        */
<------>struct nlmsghdr      nlhdr;       /* netlink message header          */
};
 
enum {
<------>ncsi_dev_state_major		= 0xff00,
<------>ncsi_dev_state_minor		= 0x00ff,
<------>ncsi_dev_state_probe_deselect	= 0x0201,
<------>ncsi_dev_state_probe_package,
<------>ncsi_dev_state_probe_channel,
<------>ncsi_dev_state_probe_mlx_gma,
<------>ncsi_dev_state_probe_mlx_smaf,
<------>ncsi_dev_state_probe_cis,
<------>ncsi_dev_state_probe_gvi,
<------>ncsi_dev_state_probe_gc,
<------>ncsi_dev_state_probe_gls,
<------>ncsi_dev_state_probe_dp,
<------>ncsi_dev_state_config_sp	= 0x0301,
<------>ncsi_dev_state_config_cis,
<------>ncsi_dev_state_config_oem_gma,
<------>ncsi_dev_state_config_clear_vids,
<------>ncsi_dev_state_config_svf,
<------>ncsi_dev_state_config_ev,
<------>ncsi_dev_state_config_sma,
<------>ncsi_dev_state_config_ebf,
<------>ncsi_dev_state_config_dgmf,
<------>ncsi_dev_state_config_ecnt,
<------>ncsi_dev_state_config_ec,
<------>ncsi_dev_state_config_ae,
<------>ncsi_dev_state_config_gls,
<------>ncsi_dev_state_config_done,
<------>ncsi_dev_state_suspend_select	= 0x0401,
<------>ncsi_dev_state_suspend_gls,
<------>ncsi_dev_state_suspend_dcnt,
<------>ncsi_dev_state_suspend_dc,
<------>ncsi_dev_state_suspend_deselect,
<------>ncsi_dev_state_suspend_done
};
 
struct vlan_vid {
<------>struct list_head list;
<------>__be16 proto;
<------>u16 vid;
};
 
struct ncsi_dev_priv {
<------>struct ncsi_dev     ndev;            /* Associated NCSI device     */
<------>unsigned int        flags;           /* NCSI device flags          */
#define NCSI_DEV_PROBED		1            /* Finalized NCSI topology    */
#define NCSI_DEV_HWA		2            /* Enabled HW arbitration     */
#define NCSI_DEV_RESHUFFLE	4
#define NCSI_DEV_RESET		8            /* Reset state of NC          */
<------>unsigned int        gma_flag;        /* OEM GMA flag               */
<------>spinlock_t          lock;            /* Protect the NCSI device    */
<------>unsigned int        package_probe_id;/* Current ID during probe    */
<------>unsigned int        package_num;     /* Number of packages         */
<------>struct list_head    packages;        /* List of packages           */
<------>struct ncsi_channel *hot_channel;    /* Channel was ever active    */
<------>struct ncsi_request requests[256];   /* Request table              */
<------>unsigned int        request_id;      /* Last used request ID       */
#define NCSI_REQ_START_IDX	1
<------>unsigned int        pending_req_num; /* Number of pending requests */
<------>struct ncsi_package *active_package; /* Currently handled package  */
<------>struct ncsi_channel *active_channel; /* Currently handled channel  */
<------>struct list_head    channel_queue;   /* Config queue of channels   */
<------>struct work_struct  work;            /* For channel management     */
<------>struct packet_type  ptype;           /* NCSI packet Rx handler     */
<------>struct list_head    node;            /* Form NCSI device list      */
#define NCSI_MAX_VLAN_VIDS	15
<------>struct list_head    vlan_vids;       /* List of active VLAN IDs */
 
<------>bool                multi_package;   /* Enable multiple packages   */
<------>bool                mlx_multi_host;  /* Enable multi host Mellanox */
<------>u32                 package_whitelist; /* Packages to configure    */
};
 
struct ncsi_cmd_arg {
<------>struct ncsi_dev_priv *ndp;        /* Associated NCSI device        */
<------>unsigned char        type;        /* Command in the NCSI packet    */
<------>unsigned char        id;          /* Request ID (sequence number)  */
<------>unsigned char        package;     /* Destination package ID        */
<------>unsigned char        channel;     /* Detination channel ID or 0x1f */
<------>unsigned short       payload;     /* Command packet payload length */
<------>unsigned int         req_flags;   /* NCSI request properties       */
<------>union {
<------><------>unsigned char  bytes[16]; /* Command packet specific data  */
<------><------>unsigned short words[8];
<------><------>unsigned int   dwords[4];
<------>};
<------>unsigned char        *data;       /* NCSI OEM data                 */
<------>struct genl_info     *info;       /* Netlink information           */
};
 
extern struct list_head ncsi_dev_list;
extern spinlock_t ncsi_dev_lock;
 
#define TO_NCSI_DEV_PRIV(nd) \
<------>container_of(nd, struct ncsi_dev_priv, ndev)
#define NCSI_FOR_EACH_DEV(ndp) \
<------>list_for_each_entry_rcu(ndp, &ncsi_dev_list, node)
#define NCSI_FOR_EACH_PACKAGE(ndp, np) \
<------>list_for_each_entry_rcu(np, &ndp->packages, node)
#define NCSI_FOR_EACH_CHANNEL(np, nc) \
<------>list_for_each_entry_rcu(nc, &np->channels, node)
 
/* Resources */
int ncsi_reset_dev(struct ncsi_dev *nd);
void ncsi_start_channel_monitor(struct ncsi_channel *nc);
void ncsi_stop_channel_monitor(struct ncsi_channel *nc);
struct ncsi_channel *ncsi_find_channel(struct ncsi_package *np,
<------><------><------><------>       unsigned char id);
struct ncsi_channel *ncsi_add_channel(struct ncsi_package *np,
<------><------><------><------>      unsigned char id);
struct ncsi_package *ncsi_find_package(struct ncsi_dev_priv *ndp,
<------><------><------><------>       unsigned char id);
struct ncsi_package *ncsi_add_package(struct ncsi_dev_priv *ndp,
<------><------><------><------>      unsigned char id);
void ncsi_remove_package(struct ncsi_package *np);
void ncsi_find_package_and_channel(struct ncsi_dev_priv *ndp,
<------><------><------><------>   unsigned char id,
<------><------><------><------>   struct ncsi_package **np,
<------><------><------><------>   struct ncsi_channel **nc);
struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp,
<------><------><------><------><------>unsigned int req_flags);
void ncsi_free_request(struct ncsi_request *nr);
struct ncsi_dev *ncsi_find_dev(struct net_device *dev);
int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);
bool ncsi_channel_has_link(struct ncsi_channel *channel);
bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp,
<------><------><------>  struct ncsi_channel *channel);
int ncsi_update_tx_channel(struct ncsi_dev_priv *ndp,
<------><------><------>   struct ncsi_package *np,
<------><------><------>   struct ncsi_channel *disable,
<------><------><------>   struct ncsi_channel *enable);
 
/* Packet handlers */
u32 ncsi_calculate_checksum(unsigned char *data, int len);
int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca);
int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,
<------><------> struct packet_type *pt, struct net_device *orig_dev);
int ncsi_aen_handler(struct ncsi_dev_priv *ndp, struct sk_buff *skb);
 
#endif /* __NCSI_INTERNAL_H__ */