[linux-block.git] / net / ncsi / internal.h

/* 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
};

/* 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
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
2d283bdd GS	2	/*
2d283bdd GS	3	* Copyright Gavin Shan, IBM Corporation 2016.
2d283bdd GS	4	*/
	5
	6	#ifndef __NCSI_INTERNAL_H__
	7	#define __NCSI_INTERNAL_H__
	8
	9	enum {
	10	NCSI_CAP_BASE = 0,
	11	NCSI_CAP_GENERIC = 0,
	12	NCSI_CAP_BC,
	13	NCSI_CAP_MC,
	14	NCSI_CAP_BUFFER,
	15	NCSI_CAP_AEN,
	16	NCSI_CAP_VLAN,
	17	NCSI_CAP_MAX
	18	};
	19
	20	enum {
	21	NCSI_CAP_GENERIC_HWA = 0x01, /* HW arbitration */
	22	NCSI_CAP_GENERIC_HDS = 0x02, /* HNC driver status change */
	23	NCSI_CAP_GENERIC_FC = 0x04, /* HNC to MC flow control */
	24	NCSI_CAP_GENERIC_FC1 = 0x08, /* MC to HNC flow control */
	25	NCSI_CAP_GENERIC_MC = 0x10, /* Global MC filtering */
	26	NCSI_CAP_GENERIC_HWA_UNKNOWN = 0x00, /* Unknown HW arbitration */
	27	NCSI_CAP_GENERIC_HWA_SUPPORT = 0x20, /* Supported HW arbitration */
	28	NCSI_CAP_GENERIC_HWA_NOT_SUPPORT = 0x40, /* No HW arbitration */
	29	NCSI_CAP_GENERIC_HWA_RESERVED = 0x60, /* Reserved HW arbitration */
	30	NCSI_CAP_GENERIC_HWA_MASK = 0x60, /* Mask for HW arbitration */
	31	NCSI_CAP_GENERIC_MASK = 0x7f,
	32	NCSI_CAP_BC_ARP = 0x01, /* ARP packet filtering */
	33	NCSI_CAP_BC_DHCPC = 0x02, /* DHCP client filtering */
	34	NCSI_CAP_BC_DHCPS = 0x04, /* DHCP server filtering */
	35	NCSI_CAP_BC_NETBIOS = 0x08, /* NetBIOS packet filtering */
	36	NCSI_CAP_BC_MASK = 0x0f,
	37	NCSI_CAP_MC_IPV6_NEIGHBOR = 0x01, /* IPv6 neighbor filtering */
	38	NCSI_CAP_MC_IPV6_ROUTER = 0x02, /* IPv6 router filering */
	39	NCSI_CAP_MC_DHCPV6_RELAY = 0x04, /* DHCPv6 relay / server MC */
	40	NCSI_CAP_MC_DHCPV6_WELL_KNOWN = 0x08, /* DHCPv6 well-known MC */
	41	NCSI_CAP_MC_IPV6_MLD = 0x10, /* IPv6 MLD filtering */
	42	NCSI_CAP_MC_IPV6_NEIGHBOR_S = 0x20, /* IPv6 neighbour filtering */
	43	NCSI_CAP_MC_MASK = 0x3f,
	44	NCSI_CAP_AEN_LSC = 0x01, /* Link status change */
	45	NCSI_CAP_AEN_CR = 0x02, /* Configuration required */
	46	NCSI_CAP_AEN_HDS = 0x04, /* HNC driver status */
	47	NCSI_CAP_AEN_MASK = 0x07,
	48	NCSI_CAP_VLAN_ONLY = 0x01, /* Filter VLAN packet only */
	49	NCSI_CAP_VLAN_NO = 0x02, /* Filter VLAN and non-VLAN */
	50	NCSI_CAP_VLAN_ANY = 0x04, /* Filter Any-and-non-VLAN */
	51	NCSI_CAP_VLAN_MASK = 0x07
	52	};
	53
	54	enum {
	55	NCSI_MODE_BASE = 0,
	56	NCSI_MODE_ENABLE = 0,
	57	NCSI_MODE_TX_ENABLE,
	58	NCSI_MODE_LINK,
	59	NCSI_MODE_VLAN,
	60	NCSI_MODE_BC,
	61	NCSI_MODE_MC,
	62	NCSI_MODE_AEN,
	63	NCSI_MODE_FC,
	64	NCSI_MODE_MAX
	65	};
	66
fb4ee675 VK	67	/* OEM Vendor Manufacture ID */
	68	#define NCSI_OEM_MFR_MLX_ID 0x8119
	69	#define NCSI_OEM_MFR_BCM_ID 0x113d
cb10c7c0 VK	70	/* Broadcom specific OEM Command */
cb10c7c0 VK	71	#define NCSI_OEM_BCM_CMD_GMA 0x01 /* CMD ID for Get MAC */
16e8c4ca VK	72	/* Mellanox specific OEM Command */
	73	#define NCSI_OEM_MLX_CMD_GMA 0x00 /* CMD ID for Get MAC */
	74	#define NCSI_OEM_MLX_CMD_GMA_PARAM 0x1b /* Parameter for GMA */
cb10c7c0 VK	75	/* OEM Command payload lengths*/
cb10c7c0 VK	76	#define NCSI_OEM_BCM_CMD_GMA_LEN 12
16e8c4ca	77	#define NCSI_OEM_MLX_CMD_GMA_LEN 8
cb10c7c0 VK	78	/* Mac address offset in OEM response */
cb10c7c0 VK	79	#define BCM_MAC_ADDR_OFFSET 28
16e8c4ca	80	#define MLX_MAC_ADDR_OFFSET 8
cb10c7c0	81
fb4ee675	82
2d283bdd GS	83	struct ncsi_channel_version {
	84	u32 version; /* Supported BCD encoded NCSI version */
	85	u32 alpha2; /* Supported BCD encoded NCSI version */
	86	u8 fw_name[12]; /* Firware name string */
	87	u32 fw_version; /* Firmware version */
	88	u16 pci_ids[4]; /* PCI identification */
	89	u32 mf_id; /* Manufacture ID */
	90	};
	91
	92	struct ncsi_channel_cap {
	93	u32 index; /* Index of channel capabilities */
	94	u32 cap; /* NCSI channel capability */
	95	};
	96
	97	struct ncsi_channel_mode {
	98	u32 index; /* Index of channel modes */
	99	u32 enable; /* Enabled or disabled */
	100	u32 size; /* Valid entries in ncm_data[] */
	101	u32 data[8]; /* Data entries */
	102	};
	103
062b3e1b SMJ	104	struct ncsi_channel_mac_filter {
	105	u8 n_uc;
	106	u8 n_mc;
	107	u8 n_mixed;
	108	u64 bitmap;
	109	unsigned char *addrs;
	110	};
	111
	112	struct ncsi_channel_vlan_filter {
	113	u8 n_vids;
	114	u64 bitmap;
	115	u16 *vids;
2d283bdd GS	116	};
	117
	118	struct ncsi_channel_stats {
	119	u32 hnc_cnt_hi; /* Counter cleared */
	120	u32 hnc_cnt_lo; /* Counter cleared */
	121	u32 hnc_rx_bytes; /* Rx bytes */
	122	u32 hnc_tx_bytes; /* Tx bytes */
	123	u32 hnc_rx_uc_pkts; /* Rx UC packets */
	124	u32 hnc_rx_mc_pkts; /* Rx MC packets */
	125	u32 hnc_rx_bc_pkts; /* Rx BC packets */
	126	u32 hnc_tx_uc_pkts; /* Tx UC packets */
	127	u32 hnc_tx_mc_pkts; /* Tx MC packets */
	128	u32 hnc_tx_bc_pkts; /* Tx BC packets */
	129	u32 hnc_fcs_err; /* FCS errors */
	130	u32 hnc_align_err; /* Alignment errors */
	131	u32 hnc_false_carrier; /* False carrier detection */
	132	u32 hnc_runt_pkts; /* Rx runt packets */
	133	u32 hnc_jabber_pkts; /* Rx jabber packets */
	134	u32 hnc_rx_pause_xon; /* Rx pause XON frames */
	135	u32 hnc_rx_pause_xoff; /* Rx XOFF frames */
	136	u32 hnc_tx_pause_xon; /* Tx XON frames */
	137	u32 hnc_tx_pause_xoff; /* Tx XOFF frames */
	138	u32 hnc_tx_s_collision; /* Single collision frames */
	139	u32 hnc_tx_m_collision; /* Multiple collision frames */
	140	u32 hnc_l_collision; /* Late collision frames */
	141	u32 hnc_e_collision; /* Excessive collision frames */
	142	u32 hnc_rx_ctl_frames; /* Rx control frames */
	143	u32 hnc_rx_64_frames; /* Rx 64-bytes frames */
	144	u32 hnc_rx_127_frames; /* Rx 65-127 bytes frames */
	145	u32 hnc_rx_255_frames; /* Rx 128-255 bytes frames */
	146	u32 hnc_rx_511_frames; /* Rx 256-511 bytes frames */
	147	u32 hnc_rx_1023_frames; /* Rx 512-1023 bytes frames */
	148	u32 hnc_rx_1522_frames; /* Rx 1024-1522 bytes frames */
	149	u32 hnc_rx_9022_frames; /* Rx 1523-9022 bytes frames */
	150	u32 hnc_tx_64_frames; /* Tx 64-bytes frames */
	151	u32 hnc_tx_127_frames; /* Tx 65-127 bytes frames */
	152	u32 hnc_tx_255_frames; /* Tx 128-255 bytes frames */
	153	u32 hnc_tx_511_frames; /* Tx 256-511 bytes frames */
	154	u32 hnc_tx_1023_frames; /* Tx 512-1023 bytes frames */
	155	u32 hnc_tx_1522_frames; /* Tx 1024-1522 bytes frames */
	156	u32 hnc_tx_9022_frames; /* Tx 1523-9022 bytes frames */
	157	u32 hnc_rx_valid_bytes; /* Rx valid bytes */
	158	u32 hnc_rx_runt_pkts; /* Rx error runt packets */
	159	u32 hnc_rx_jabber_pkts; /* Rx error jabber packets */
	160	u32 ncsi_rx_cmds; /* Rx NCSI commands */
	161	u32 ncsi_dropped_cmds; /* Dropped commands */
	162	u32 ncsi_cmd_type_errs; /* Command type errors */
	163	u32 ncsi_cmd_csum_errs; /* Command checksum errors */
	164	u32 ncsi_rx_pkts; /* Rx NCSI packets */
	165	u32 ncsi_tx_pkts; /* Tx NCSI packets */
	166	u32 ncsi_tx_aen_pkts; /* Tx AEN packets */
	167	u32 pt_tx_pkts; /* Tx packets */
	168	u32 pt_tx_dropped; /* Tx dropped packets */
	169	u32 pt_tx_channel_err; /* Tx channel errors */
	170	u32 pt_tx_us_err; /* Tx undersize errors */
	171	u32 pt_rx_pkts; /* Rx packets */
	172	u32 pt_rx_dropped; /* Rx dropped packets */
	173	u32 pt_rx_channel_err; /* Rx channel errors */
	174	u32 pt_rx_us_err; /* Rx undersize errors */
	175	u32 pt_rx_os_err; /* Rx oversize errors */
	176	};
	177
	178	struct ncsi_dev_priv;
	179	struct ncsi_package;
180
181	#define NCSI_PACKAGE_SHIFT 5
182	#define NCSI_PACKAGE_INDEX(c) (((c) >> NCSI_PACKAGE_SHIFT) & 0x7)
bc7e0f50	183	#define NCSI_RESERVED_CHANNEL 0x1f
2d283bdd GS	184	#define NCSI_CHANNEL_INDEX(c) ((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1))
2d283bdd GS	185	#define NCSI_TO_CHANNEL(p, c) (((p) << NCSI_PACKAGE_SHIFT) \| (c))
9771b8cc JLD	186	#define NCSI_MAX_PACKAGE 8
9771b8cc JLD	187	#define NCSI_MAX_CHANNEL 32
2d283bdd GS	188
	189	struct ncsi_channel {
	190	unsigned char id;
	191	int state;
	192	#define NCSI_CHANNEL_INACTIVE 1
	193	#define NCSI_CHANNEL_ACTIVE 2
e6f44ed6	194	#define NCSI_CHANNEL_INVISIBLE 3
21acf630	195	bool reconfigure_needed;
2d283bdd GS	196	spinlock_t lock; /* Protect filters etc */
	197	struct ncsi_package *package;
	198	struct ncsi_channel_version version;
	199	struct ncsi_channel_cap caps[NCSI_CAP_MAX];
	200	struct ncsi_channel_mode modes[NCSI_MODE_MAX];
062b3e1b SMJ	201	/* Filtering Settings */
	202	struct ncsi_channel_mac_filter mac_filter;
	203	struct ncsi_channel_vlan_filter vlan_filter;
2d283bdd	204	struct ncsi_channel_stats stats;
83afdc6a GS	205	struct {
	206	struct timer_list timer;
	207	bool enabled;
	208	unsigned int state;
	209	#define NCSI_CHANNEL_MONITOR_START 0
	210	#define NCSI_CHANNEL_MONITOR_RETRY 1
	211	#define NCSI_CHANNEL_MONITOR_WAIT 2
	212	#define NCSI_CHANNEL_MONITOR_WAIT_MAX 5
	213	} monitor;
2d283bdd	214	struct list_head node;
e6f44ed6	215	struct list_head link;
2d283bdd GS	216	};
	217
	218	struct ncsi_package {
	219	unsigned char id; /* NCSI 3-bits package ID */
	220	unsigned char uuid[16]; /* UUID */
	221	struct ncsi_dev_priv ndp; / NCSI device */
	222	spinlock_t lock; /* Protect the package */
	223	unsigned int channel_num; /* Number of channels */
	224	struct list_head channels; /* List of chanels */
	225	struct list_head node; /* Form list of packages */
8d951a75 SMJ	226
	227	bool multi_channel; /* Enable multiple channels */
	228	u32 channel_whitelist; /* Channels to configure */
	229	struct ncsi_channel preferred_channel; / Primary channel */
2d283bdd GS	230	};
	231
	232	struct ncsi_request {
	233	unsigned char id; /* Request ID - 0 to 255 */
	234	bool used; /* Request that has been assigned */
a0509cbe GS	235	unsigned int flags; /* NCSI request property */
a0509cbe GS	236	#define NCSI_REQ_FLAG_EVENT_DRIVEN 1
9771b8cc	237	#define NCSI_REQ_FLAG_NETLINK_DRIVEN 2
2d283bdd GS	238	struct ncsi_dev_priv ndp; / Associated NCSI device */
	239	struct sk_buff cmd; / Associated NCSI command packet */
	240	struct sk_buff rsp; / Associated NCSI response packet */
	241	struct timer_list timer; /* Timer on waiting for response */
	242	bool enabled; /* Time has been enabled or not */
9771b8cc JLD	243	u32 snd_seq; /* netlink sending sequence number */
	244	u32 snd_portid; /* netlink portid of sender */
	245	struct nlmsghdr nlhdr; /* netlink message header */
2d283bdd GS	246	};
2d283bdd GS	247
e6f44ed6 GS	248	enum {
	249	ncsi_dev_state_major = 0xff00,
	250	ncsi_dev_state_minor = 0x00ff,
	251	ncsi_dev_state_probe_deselect = 0x0201,
	252	ncsi_dev_state_probe_package,
	253	ncsi_dev_state_probe_channel,
	254	ncsi_dev_state_probe_cis,
	255	ncsi_dev_state_probe_gvi,
	256	ncsi_dev_state_probe_gc,
	257	ncsi_dev_state_probe_gls,
	258	ncsi_dev_state_probe_dp,
	259	ncsi_dev_state_config_sp = 0x0301,
	260	ncsi_dev_state_config_cis,
cb10c7c0	261	ncsi_dev_state_config_oem_gma,
21acf630 SMJ	262	ncsi_dev_state_config_clear_vids,
	263	ncsi_dev_state_config_svf,
	264	ncsi_dev_state_config_ev,
e6f44ed6 GS	265	ncsi_dev_state_config_sma,
	266	ncsi_dev_state_config_ebf,
	267	#if IS_ENABLED(CONFIG_IPV6)
	268	ncsi_dev_state_config_egmf,
	269	#endif
	270	ncsi_dev_state_config_ecnt,
	271	ncsi_dev_state_config_ec,
	272	ncsi_dev_state_config_ae,
	273	ncsi_dev_state_config_gls,
	274	ncsi_dev_state_config_done,
	275	ncsi_dev_state_suspend_select = 0x0401,
008a424a	276	ncsi_dev_state_suspend_gls,
e6f44ed6 GS	277	ncsi_dev_state_suspend_dcnt,
	278	ncsi_dev_state_suspend_dc,
	279	ncsi_dev_state_suspend_deselect,
	280	ncsi_dev_state_suspend_done
	281	};
	282
21acf630 SMJ	283	struct vlan_vid {
	284	struct list_head list;
	285	__be16 proto;
	286	u16 vid;
	287	};
	288
2d283bdd GS	289	struct ncsi_dev_priv {
	290	struct ncsi_dev ndev; /* Associated NCSI device */
	291	unsigned int flags; /* NCSI device flags */
e6f44ed6 GS	292	#define NCSI_DEV_PROBED 1 /* Finalized NCSI topology */
	293	#define NCSI_DEV_HWA 2 /* Enabled HW arbitration */
	294	#define NCSI_DEV_RESHUFFLE 4
2878a2cf	295	#define NCSI_DEV_RESET 8 /* Reset state of NC */
cb10c7c0	296	unsigned int gma_flag; /* OEM GMA flag */
2d283bdd	297	spinlock_t lock; /* Protect the NCSI device */
e6f44ed6 GS	298	#if IS_ENABLED(CONFIG_IPV6)
	299	unsigned int inet6_addr_num; /* Number of IPv6 addresses */
	300	#endif
8e13f70b	301	unsigned int package_probe_id;/* Current ID during probe */
2d283bdd GS	302	unsigned int package_num; /* Number of packages */
2d283bdd GS	303	struct list_head packages; /* List of packages */
bbc7c01e	304	struct ncsi_channel hot_channel; / Channel was ever active */
2d283bdd GS	305	struct ncsi_request requests[256]; /* Request table */
2d283bdd GS	306	unsigned int request_id; /* Last used request ID */
a15af54f	307	#define NCSI_REQ_START_IDX 1
e6f44ed6 GS	308	unsigned int pending_req_num; /* Number of pending requests */
	309	struct ncsi_package active_package; / Currently handled package */
	310	struct ncsi_channel active_channel; / Currently handled channel */
	311	struct list_head channel_queue; /* Config queue of channels */
	312	struct work_struct work; /* For channel management */
	313	struct packet_type ptype; /* NCSI packet Rx handler */
2d283bdd	314	struct list_head node; /* Form NCSI device list */
6e9c0075	315	#define NCSI_MAX_VLAN_VIDS 15
21acf630	316	struct list_head vlan_vids; /* List of active VLAN IDs */
8d951a75 SMJ	317
	318	bool multi_package; /* Enable multiple packages */
	319	u32 package_whitelist; /* Packages to configure */
2d283bdd GS	320	};
2d283bdd GS	321
6389eaa7 GS	322	struct ncsi_cmd_arg {
	323	struct ncsi_dev_priv ndp; / Associated NCSI device */
	324	unsigned char type; /* Command in the NCSI packet */
	325	unsigned char id; /* Request ID (sequence number) */
	326	unsigned char package; /* Destination package ID */
	327	unsigned char channel; /* Detination channel ID or 0x1f */
	328	unsigned short payload; /* Command packet payload length */
a0509cbe	329	unsigned int req_flags; /* NCSI request properties */
6389eaa7 GS	330	union {
	331	unsigned char bytes[16]; /* Command packet specific data */
	332	unsigned short words[8];
	333	unsigned int dwords[4];
	334	};
fb4ee675	335	unsigned char data; / NCSI OEM data */
9771b8cc	336	struct genl_info info; / Netlink information */
6389eaa7 GS	337	};
6389eaa7 GS	338
2d283bdd GS	339	extern struct list_head ncsi_dev_list;
	340	extern spinlock_t ncsi_dev_lock;
	341
	342	#define TO_NCSI_DEV_PRIV(nd) \
	343	container_of(nd, struct ncsi_dev_priv, ndev)
	344	#define NCSI_FOR_EACH_DEV(ndp) \
	345	list_for_each_entry_rcu(ndp, &ncsi_dev_list, node)
	346	#define NCSI_FOR_EACH_PACKAGE(ndp, np) \
	347	list_for_each_entry_rcu(np, &ndp->packages, node)
	348	#define NCSI_FOR_EACH_CHANNEL(np, nc) \
	349	list_for_each_entry_rcu(nc, &np->channels, node)
	350
	351	/* Resources */
2878a2cf	352	int ncsi_reset_dev(struct ncsi_dev *nd);
e6f44ed6 GS	353	void ncsi_start_channel_monitor(struct ncsi_channel *nc);
e6f44ed6 GS	354	void ncsi_stop_channel_monitor(struct ncsi_channel *nc);
2d283bdd GS	355	struct ncsi_channel ncsi_find_channel(struct ncsi_package np,
	356	unsigned char id);
	357	struct ncsi_channel ncsi_add_channel(struct ncsi_package np,
	358	unsigned char id);
	359	struct ncsi_package ncsi_find_package(struct ncsi_dev_priv ndp,
	360	unsigned char id);
	361	struct ncsi_package ncsi_add_package(struct ncsi_dev_priv ndp,
	362	unsigned char id);
	363	void ncsi_remove_package(struct ncsi_package *np);
	364	void ncsi_find_package_and_channel(struct ncsi_dev_priv *ndp,
	365	unsigned char id,
	366	struct ncsi_package **np,
	367	struct ncsi_channel **nc);
a0509cbe GS	368	struct ncsi_request ncsi_alloc_request(struct ncsi_dev_priv ndp,
a0509cbe GS	369	unsigned int req_flags);
2d283bdd GS	370	void ncsi_free_request(struct ncsi_request *nr);
2d283bdd GS	371	struct ncsi_dev ncsi_find_dev(struct net_device dev);
e6f44ed6	372	int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);
8d951a75 SMJ	373	bool ncsi_channel_has_link(struct ncsi_channel *channel);
	374	bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp,
	375	struct ncsi_channel *channel);
	376	int ncsi_update_tx_channel(struct ncsi_dev_priv *ndp,
	377	struct ncsi_package *np,
	378	struct ncsi_channel *disable,
	379	struct ncsi_channel *enable);
2d283bdd	380
6389eaa7 GS	381	/* Packet handlers */
	382	u32 ncsi_calculate_checksum(unsigned char *data, int len);
	383	int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca);
138635cc GS	384	int ncsi_rcv_rsp(struct sk_buff skb, struct net_device dev,
138635cc GS	385	struct packet_type pt, struct net_device orig_dev);
7a82ecf4	386	int ncsi_aen_handler(struct ncsi_dev_priv ndp, struct sk_buff skb);
6389eaa7	387
2d283bdd	388	#endif /* __NCSI_INTERNAL_H__ */