[mirror_ubuntu-disco-kernel.git] / net / ncsi / internal.h

/*
 * Copyright Gavin Shan, IBM Corporation 2016.
 *
 * 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.
 */

#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
};

/* 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  */
/* OEM Command payload lengths*/
#define NCSI_OEM_BCM_CMD_GMA_LEN        12
#define NCSI_OEM_MLX_CMD_GMA_LEN        8
/* 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_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,
#if IS_ENABLED(CONFIG_IPV6)
	ncsi_dev_state_config_egmf,
#endif
	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    */
#if IS_ENABLED(CONFIG_IPV6)
	unsigned int        inet6_addr_num;  /* Number of IPv6 addresses   */
#endif
	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   */
	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__ */
Commit	Line	Data
2d283bdd GS	1	/*
	2	* Copyright Gavin Shan, IBM Corporation 2016.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*/
	9
	10	#ifndef __NCSI_INTERNAL_H__
	11	#define __NCSI_INTERNAL_H__
	12
	13	enum {
	14	NCSI_CAP_BASE = 0,
	15	NCSI_CAP_GENERIC = 0,
	16	NCSI_CAP_BC,
	17	NCSI_CAP_MC,
	18	NCSI_CAP_BUFFER,
	19	NCSI_CAP_AEN,
	20	NCSI_CAP_VLAN,
	21	NCSI_CAP_MAX
	22	};
	23
	24	enum {
	25	NCSI_CAP_GENERIC_HWA = 0x01, /* HW arbitration */
	26	NCSI_CAP_GENERIC_HDS = 0x02, /* HNC driver status change */
	27	NCSI_CAP_GENERIC_FC = 0x04, /* HNC to MC flow control */
	28	NCSI_CAP_GENERIC_FC1 = 0x08, /* MC to HNC flow control */
	29	NCSI_CAP_GENERIC_MC = 0x10, /* Global MC filtering */
	30	NCSI_CAP_GENERIC_HWA_UNKNOWN = 0x00, /* Unknown HW arbitration */
	31	NCSI_CAP_GENERIC_HWA_SUPPORT = 0x20, /* Supported HW arbitration */
	32	NCSI_CAP_GENERIC_HWA_NOT_SUPPORT = 0x40, /* No HW arbitration */
	33	NCSI_CAP_GENERIC_HWA_RESERVED = 0x60, /* Reserved HW arbitration */
	34	NCSI_CAP_GENERIC_HWA_MASK = 0x60, /* Mask for HW arbitration */
	35	NCSI_CAP_GENERIC_MASK = 0x7f,
	36	NCSI_CAP_BC_ARP = 0x01, /* ARP packet filtering */
	37	NCSI_CAP_BC_DHCPC = 0x02, /* DHCP client filtering */
	38	NCSI_CAP_BC_DHCPS = 0x04, /* DHCP server filtering */
	39	NCSI_CAP_BC_NETBIOS = 0x08, /* NetBIOS packet filtering */
	40	NCSI_CAP_BC_MASK = 0x0f,
	41	NCSI_CAP_MC_IPV6_NEIGHBOR = 0x01, /* IPv6 neighbor filtering */
	42	NCSI_CAP_MC_IPV6_ROUTER = 0x02, /* IPv6 router filering */
	43	NCSI_CAP_MC_DHCPV6_RELAY = 0x04, /* DHCPv6 relay / server MC */
	44	NCSI_CAP_MC_DHCPV6_WELL_KNOWN = 0x08, /* DHCPv6 well-known MC */
	45	NCSI_CAP_MC_IPV6_MLD = 0x10, /* IPv6 MLD filtering */
	46	NCSI_CAP_MC_IPV6_NEIGHBOR_S = 0x20, /* IPv6 neighbour filtering */
	47	NCSI_CAP_MC_MASK = 0x3f,
	48	NCSI_CAP_AEN_LSC = 0x01, /* Link status change */
	49	NCSI_CAP_AEN_CR = 0x02, /* Configuration required */
	50	NCSI_CAP_AEN_HDS = 0x04, /* HNC driver status */
	51	NCSI_CAP_AEN_MASK = 0x07,
	52	NCSI_CAP_VLAN_ONLY = 0x01, /* Filter VLAN packet only */
	53	NCSI_CAP_VLAN_NO = 0x02, /* Filter VLAN and non-VLAN */
	54	NCSI_CAP_VLAN_ANY = 0x04, /* Filter Any-and-non-VLAN */
	55	NCSI_CAP_VLAN_MASK = 0x07
	56	};
	57
	58	enum {
	59	NCSI_MODE_BASE = 0,
	60	NCSI_MODE_ENABLE = 0,
	61	NCSI_MODE_TX_ENABLE,
	62	NCSI_MODE_LINK,
	63	NCSI_MODE_VLAN,
	64	NCSI_MODE_BC,
65	NCSI_MODE_MC,
66	NCSI_MODE_AEN,
67	NCSI_MODE_FC,
68	NCSI_MODE_MAX
69	};
70
fb4ee675 VK	71	/* OEM Vendor Manufacture ID */
	72	#define NCSI_OEM_MFR_MLX_ID 0x8119
	73	#define NCSI_OEM_MFR_BCM_ID 0x113d
cb10c7c0 VK	74	/* Broadcom specific OEM Command */
cb10c7c0 VK	75	#define NCSI_OEM_BCM_CMD_GMA 0x01 /* CMD ID for Get MAC */
16e8c4ca VK	76	/* Mellanox specific OEM Command */
	77	#define NCSI_OEM_MLX_CMD_GMA 0x00 /* CMD ID for Get MAC */
	78	#define NCSI_OEM_MLX_CMD_GMA_PARAM 0x1b /* Parameter for GMA */
cb10c7c0 VK	79	/* OEM Command payload lengths*/
cb10c7c0 VK	80	#define NCSI_OEM_BCM_CMD_GMA_LEN 12
16e8c4ca	81	#define NCSI_OEM_MLX_CMD_GMA_LEN 8
cb10c7c0 VK	82	/* Mac address offset in OEM response */
cb10c7c0 VK	83	#define BCM_MAC_ADDR_OFFSET 28
16e8c4ca	84	#define MLX_MAC_ADDR_OFFSET 8
cb10c7c0	85
fb4ee675	86
2d283bdd GS	87	struct ncsi_channel_version {
	88	u32 version; /* Supported BCD encoded NCSI version */
	89	u32 alpha2; /* Supported BCD encoded NCSI version */
	90	u8 fw_name[12]; /* Firware name string */
	91	u32 fw_version; /* Firmware version */
	92	u16 pci_ids[4]; /* PCI identification */
	93	u32 mf_id; /* Manufacture ID */
	94	};
	95
	96	struct ncsi_channel_cap {
	97	u32 index; /* Index of channel capabilities */
	98	u32 cap; /* NCSI channel capability */
	99	};
	100
	101	struct ncsi_channel_mode {
	102	u32 index; /* Index of channel modes */
	103	u32 enable; /* Enabled or disabled */
	104	u32 size; /* Valid entries in ncm_data[] */
	105	u32 data[8]; /* Data entries */
	106	};
	107
062b3e1b SMJ	108	struct ncsi_channel_mac_filter {
	109	u8 n_uc;
	110	u8 n_mc;
	111	u8 n_mixed;
	112	u64 bitmap;
	113	unsigned char *addrs;
	114	};
	115
	116	struct ncsi_channel_vlan_filter {
	117	u8 n_vids;
	118	u64 bitmap;
	119	u16 *vids;
2d283bdd GS	120	};
	121
	122	struct ncsi_channel_stats {
	123	u32 hnc_cnt_hi; /* Counter cleared */
	124	u32 hnc_cnt_lo; /* Counter cleared */
	125	u32 hnc_rx_bytes; /* Rx bytes */
	126	u32 hnc_tx_bytes; /* Tx bytes */
	127	u32 hnc_rx_uc_pkts; /* Rx UC packets */
	128	u32 hnc_rx_mc_pkts; /* Rx MC packets */
	129	u32 hnc_rx_bc_pkts; /* Rx BC packets */
	130	u32 hnc_tx_uc_pkts; /* Tx UC packets */
	131	u32 hnc_tx_mc_pkts; /* Tx MC packets */
	132	u32 hnc_tx_bc_pkts; /* Tx BC packets */
	133	u32 hnc_fcs_err; /* FCS errors */
	134	u32 hnc_align_err; /* Alignment errors */
	135	u32 hnc_false_carrier; /* False carrier detection */
	136	u32 hnc_runt_pkts; /* Rx runt packets */
	137	u32 hnc_jabber_pkts; /* Rx jabber packets */
	138	u32 hnc_rx_pause_xon; /* Rx pause XON frames */
	139	u32 hnc_rx_pause_xoff; /* Rx XOFF frames */
	140	u32 hnc_tx_pause_xon; /* Tx XON frames */
	141	u32 hnc_tx_pause_xoff; /* Tx XOFF frames */
	142	u32 hnc_tx_s_collision; /* Single collision frames */
	143	u32 hnc_tx_m_collision; /* Multiple collision frames */
	144	u32 hnc_l_collision; /* Late collision frames */
	145	u32 hnc_e_collision; /* Excessive collision frames */
	146	u32 hnc_rx_ctl_frames; /* Rx control frames */
	147	u32 hnc_rx_64_frames; /* Rx 64-bytes frames */
	148	u32 hnc_rx_127_frames; /* Rx 65-127 bytes frames */
	149	u32 hnc_rx_255_frames; /* Rx 128-255 bytes frames */
	150	u32 hnc_rx_511_frames; /* Rx 256-511 bytes frames */
	151	u32 hnc_rx_1023_frames; /* Rx 512-1023 bytes frames */
	152	u32 hnc_rx_1522_frames; /* Rx 1024-1522 bytes frames */
	153	u32 hnc_rx_9022_frames; /* Rx 1523-9022 bytes frames */
	154	u32 hnc_tx_64_frames; /* Tx 64-bytes frames */
	155	u32 hnc_tx_127_frames; /* Tx 65-127 bytes frames */
	156	u32 hnc_tx_255_frames; /* Tx 128-255 bytes frames */
	157	u32 hnc_tx_511_frames; /* Tx 256-511 bytes frames */
	158	u32 hnc_tx_1023_frames; /* Tx 512-1023 bytes frames */
	159	u32 hnc_tx_1522_frames; /* Tx 1024-1522 bytes frames */
	160	u32 hnc_tx_9022_frames; /* Tx 1523-9022 bytes frames */
	161	u32 hnc_rx_valid_bytes; /* Rx valid bytes */
	162	u32 hnc_rx_runt_pkts; /* Rx error runt packets */
	163	u32 hnc_rx_jabber_pkts; /* Rx error jabber packets */
	164	u32 ncsi_rx_cmds; /* Rx NCSI commands */
	165	u32 ncsi_dropped_cmds; /* Dropped commands */
	166	u32 ncsi_cmd_type_errs; /* Command type errors */
	167	u32 ncsi_cmd_csum_errs; /* Command checksum errors */
	168	u32 ncsi_rx_pkts; /* Rx NCSI packets */
	169	u32 ncsi_tx_pkts; /* Tx NCSI packets */
	170	u32 ncsi_tx_aen_pkts; /* Tx AEN packets */
	171	u32 pt_tx_pkts; /* Tx packets */
	172	u32 pt_tx_dropped; /* Tx dropped packets */
	173	u32 pt_tx_channel_err; /* Tx channel errors */
	174	u32 pt_tx_us_err; /* Tx undersize errors */
	175	u32 pt_rx_pkts; /* Rx packets */
	176	u32 pt_rx_dropped; /* Rx dropped packets */
	177	u32 pt_rx_channel_err; /* Rx channel errors */
	178	u32 pt_rx_us_err; /* Rx undersize errors */
	179	u32 pt_rx_os_err; /* Rx oversize errors */
	180	};
	181
	182	struct ncsi_dev_priv;
	183	struct ncsi_package;
184
185	#define NCSI_PACKAGE_SHIFT 5
186	#define NCSI_PACKAGE_INDEX(c) (((c) >> NCSI_PACKAGE_SHIFT) & 0x7)
bc7e0f50	187	#define NCSI_RESERVED_CHANNEL 0x1f
2d283bdd GS	188	#define NCSI_CHANNEL_INDEX(c) ((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1))
2d283bdd GS	189	#define NCSI_TO_CHANNEL(p, c) (((p) << NCSI_PACKAGE_SHIFT) \| (c))
9771b8cc JLD	190	#define NCSI_MAX_PACKAGE 8
9771b8cc JLD	191	#define NCSI_MAX_CHANNEL 32
2d283bdd GS	192
	193	struct ncsi_channel {
	194	unsigned char id;
	195	int state;
	196	#define NCSI_CHANNEL_INACTIVE 1
	197	#define NCSI_CHANNEL_ACTIVE 2
e6f44ed6	198	#define NCSI_CHANNEL_INVISIBLE 3
21acf630	199	bool reconfigure_needed;
2d283bdd GS	200	spinlock_t lock; /* Protect filters etc */
	201	struct ncsi_package *package;
	202	struct ncsi_channel_version version;
	203	struct ncsi_channel_cap caps[NCSI_CAP_MAX];
	204	struct ncsi_channel_mode modes[NCSI_MODE_MAX];
062b3e1b SMJ	205	/* Filtering Settings */
	206	struct ncsi_channel_mac_filter mac_filter;
	207	struct ncsi_channel_vlan_filter vlan_filter;
2d283bdd	208	struct ncsi_channel_stats stats;
83afdc6a GS	209	struct {
	210	struct timer_list timer;
	211	bool enabled;
	212	unsigned int state;
	213	#define NCSI_CHANNEL_MONITOR_START 0
	214	#define NCSI_CHANNEL_MONITOR_RETRY 1
	215	#define NCSI_CHANNEL_MONITOR_WAIT 2
	216	#define NCSI_CHANNEL_MONITOR_WAIT_MAX 5
	217	} monitor;
2d283bdd	218	struct list_head node;
e6f44ed6	219	struct list_head link;
2d283bdd GS	220	};
	221
	222	struct ncsi_package {
	223	unsigned char id; /* NCSI 3-bits package ID */
	224	unsigned char uuid[16]; /* UUID */
	225	struct ncsi_dev_priv ndp; / NCSI device */
	226	spinlock_t lock; /* Protect the package */
	227	unsigned int channel_num; /* Number of channels */
	228	struct list_head channels; /* List of chanels */
	229	struct list_head node; /* Form list of packages */
8d951a75 SMJ	230
	231	bool multi_channel; /* Enable multiple channels */
	232	u32 channel_whitelist; /* Channels to configure */
	233	struct ncsi_channel preferred_channel; / Primary channel */
2d283bdd GS	234	};
	235
	236	struct ncsi_request {
	237	unsigned char id; /* Request ID - 0 to 255 */
	238	bool used; /* Request that has been assigned */
a0509cbe GS	239	unsigned int flags; /* NCSI request property */
a0509cbe GS	240	#define NCSI_REQ_FLAG_EVENT_DRIVEN 1
9771b8cc	241	#define NCSI_REQ_FLAG_NETLINK_DRIVEN 2
2d283bdd GS	242	struct ncsi_dev_priv ndp; / Associated NCSI device */
	243	struct sk_buff cmd; / Associated NCSI command packet */
	244	struct sk_buff rsp; / Associated NCSI response packet */
	245	struct timer_list timer; /* Timer on waiting for response */
	246	bool enabled; /* Time has been enabled or not */
9771b8cc JLD	247	u32 snd_seq; /* netlink sending sequence number */
	248	u32 snd_portid; /* netlink portid of sender */
	249	struct nlmsghdr nlhdr; /* netlink message header */
2d283bdd GS	250	};
2d283bdd GS	251
e6f44ed6 GS	252	enum {
	253	ncsi_dev_state_major = 0xff00,
	254	ncsi_dev_state_minor = 0x00ff,
	255	ncsi_dev_state_probe_deselect = 0x0201,
	256	ncsi_dev_state_probe_package,
	257	ncsi_dev_state_probe_channel,
	258	ncsi_dev_state_probe_cis,
	259	ncsi_dev_state_probe_gvi,
	260	ncsi_dev_state_probe_gc,
	261	ncsi_dev_state_probe_gls,
	262	ncsi_dev_state_probe_dp,
	263	ncsi_dev_state_config_sp = 0x0301,
	264	ncsi_dev_state_config_cis,
cb10c7c0	265	ncsi_dev_state_config_oem_gma,
21acf630 SMJ	266	ncsi_dev_state_config_clear_vids,
	267	ncsi_dev_state_config_svf,
	268	ncsi_dev_state_config_ev,
e6f44ed6 GS	269	ncsi_dev_state_config_sma,
	270	ncsi_dev_state_config_ebf,
	271	#if IS_ENABLED(CONFIG_IPV6)
	272	ncsi_dev_state_config_egmf,
	273	#endif
	274	ncsi_dev_state_config_ecnt,
	275	ncsi_dev_state_config_ec,
	276	ncsi_dev_state_config_ae,
	277	ncsi_dev_state_config_gls,
	278	ncsi_dev_state_config_done,
	279	ncsi_dev_state_suspend_select = 0x0401,
008a424a	280	ncsi_dev_state_suspend_gls,
e6f44ed6 GS	281	ncsi_dev_state_suspend_dcnt,
	282	ncsi_dev_state_suspend_dc,
	283	ncsi_dev_state_suspend_deselect,
	284	ncsi_dev_state_suspend_done
	285	};
	286
21acf630 SMJ	287	struct vlan_vid {
	288	struct list_head list;
	289	__be16 proto;
	290	u16 vid;
	291	};
	292
2d283bdd GS	293	struct ncsi_dev_priv {
	294	struct ncsi_dev ndev; /* Associated NCSI device */
	295	unsigned int flags; /* NCSI device flags */
e6f44ed6 GS	296	#define NCSI_DEV_PROBED 1 /* Finalized NCSI topology */
	297	#define NCSI_DEV_HWA 2 /* Enabled HW arbitration */
	298	#define NCSI_DEV_RESHUFFLE 4
2878a2cf	299	#define NCSI_DEV_RESET 8 /* Reset state of NC */
cb10c7c0	300	unsigned int gma_flag; /* OEM GMA flag */
2d283bdd	301	spinlock_t lock; /* Protect the NCSI device */
e6f44ed6 GS	302	#if IS_ENABLED(CONFIG_IPV6)
	303	unsigned int inet6_addr_num; /* Number of IPv6 addresses */
	304	#endif
8e13f70b	305	unsigned int package_probe_id;/* Current ID during probe */
2d283bdd GS	306	unsigned int package_num; /* Number of packages */
2d283bdd GS	307	struct list_head packages; /* List of packages */
bbc7c01e	308	struct ncsi_channel hot_channel; / Channel was ever active */
2d283bdd GS	309	struct ncsi_request requests[256]; /* Request table */
2d283bdd GS	310	unsigned int request_id; /* Last used request ID */
a15af54f	311	#define NCSI_REQ_START_IDX 1
e6f44ed6 GS	312	unsigned int pending_req_num; /* Number of pending requests */
	313	struct ncsi_package active_package; / Currently handled package */
	314	struct ncsi_channel active_channel; / Currently handled channel */
	315	struct list_head channel_queue; /* Config queue of channels */
	316	struct work_struct work; /* For channel management */
	317	struct packet_type ptype; /* NCSI packet Rx handler */
2d283bdd	318	struct list_head node; /* Form NCSI device list */
6e9c0075	319	#define NCSI_MAX_VLAN_VIDS 15
21acf630	320	struct list_head vlan_vids; /* List of active VLAN IDs */
8d951a75 SMJ	321
	322	bool multi_package; /* Enable multiple packages */
	323	u32 package_whitelist; /* Packages to configure */
2d283bdd GS	324	};
2d283bdd GS	325
6389eaa7 GS	326	struct ncsi_cmd_arg {
	327	struct ncsi_dev_priv ndp; / Associated NCSI device */
	328	unsigned char type; /* Command in the NCSI packet */
	329	unsigned char id; /* Request ID (sequence number) */
	330	unsigned char package; /* Destination package ID */
	331	unsigned char channel; /* Detination channel ID or 0x1f */
	332	unsigned short payload; /* Command packet payload length */
a0509cbe	333	unsigned int req_flags; /* NCSI request properties */
6389eaa7 GS	334	union {
	335	unsigned char bytes[16]; /* Command packet specific data */
	336	unsigned short words[8];
	337	unsigned int dwords[4];
	338	};
fb4ee675	339	unsigned char data; / NCSI OEM data */
9771b8cc	340	struct genl_info info; / Netlink information */
6389eaa7 GS	341	};
6389eaa7 GS	342
2d283bdd GS	343	extern struct list_head ncsi_dev_list;
	344	extern spinlock_t ncsi_dev_lock;
	345
	346	#define TO_NCSI_DEV_PRIV(nd) \
	347	container_of(nd, struct ncsi_dev_priv, ndev)
	348	#define NCSI_FOR_EACH_DEV(ndp) \
	349	list_for_each_entry_rcu(ndp, &ncsi_dev_list, node)
	350	#define NCSI_FOR_EACH_PACKAGE(ndp, np) \
	351	list_for_each_entry_rcu(np, &ndp->packages, node)
	352	#define NCSI_FOR_EACH_CHANNEL(np, nc) \
	353	list_for_each_entry_rcu(nc, &np->channels, node)
	354
	355	/* Resources */
2878a2cf	356	int ncsi_reset_dev(struct ncsi_dev *nd);
e6f44ed6 GS	357	void ncsi_start_channel_monitor(struct ncsi_channel *nc);
e6f44ed6 GS	358	void ncsi_stop_channel_monitor(struct ncsi_channel *nc);
2d283bdd GS	359	struct ncsi_channel ncsi_find_channel(struct ncsi_package np,
	360	unsigned char id);
	361	struct ncsi_channel ncsi_add_channel(struct ncsi_package np,
	362	unsigned char id);
	363	struct ncsi_package ncsi_find_package(struct ncsi_dev_priv ndp,
	364	unsigned char id);
	365	struct ncsi_package ncsi_add_package(struct ncsi_dev_priv ndp,
	366	unsigned char id);
	367	void ncsi_remove_package(struct ncsi_package *np);
	368	void ncsi_find_package_and_channel(struct ncsi_dev_priv *ndp,
	369	unsigned char id,
	370	struct ncsi_package **np,
	371	struct ncsi_channel **nc);
a0509cbe GS	372	struct ncsi_request ncsi_alloc_request(struct ncsi_dev_priv ndp,
a0509cbe GS	373	unsigned int req_flags);
2d283bdd GS	374	void ncsi_free_request(struct ncsi_request *nr);
2d283bdd GS	375	struct ncsi_dev ncsi_find_dev(struct net_device dev);
e6f44ed6	376	int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);
8d951a75 SMJ	377	bool ncsi_channel_has_link(struct ncsi_channel *channel);
	378	bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp,
	379	struct ncsi_channel *channel);
	380	int ncsi_update_tx_channel(struct ncsi_dev_priv *ndp,
	381	struct ncsi_package *np,
	382	struct ncsi_channel *disable,
	383	struct ncsi_channel *enable);
2d283bdd	384
6389eaa7 GS	385	/* Packet handlers */
	386	u32 ncsi_calculate_checksum(unsigned char *data, int len);
	387	int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca);
138635cc GS	388	int ncsi_rcv_rsp(struct sk_buff skb, struct net_device dev,
138635cc GS	389	struct packet_type pt, struct net_device orig_dev);
7a82ecf4	390	int ncsi_aen_handler(struct ncsi_dev_priv ndp, struct sk_buff skb);
6389eaa7	391
2d283bdd	392	#endif /* __NCSI_INTERNAL_H__ */