[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
};

/* 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
#define NCSI_OEM_MFR_INTEL_ID           0x157
/* Intel specific OEM command */
#define NCSI_OEM_INTEL_CMD_GMA          0x06   /* CMD ID for Get MAC */
#define NCSI_OEM_INTEL_CMD_KEEP_PHY     0x20   /* CMD ID for Keep PHY up */
/* 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_INTEL_CMD_GMA_LEN      5
#define NCSI_OEM_INTEL_CMD_KEEP_PHY_LEN 7
#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
#define INTEL_MAC_ADDR_OFFSET           1


struct ncsi_channel_version {
	u8   major;		/* NCSI version major */
	u8   minor;		/* NCSI version minor */
	u8   update;		/* NCSI version update */
	char alpha1;		/* NCSI version alpha1 */
	char alpha2;		/* NCSI version alpha2 */
	u8  fw_name[12];	/* Firmware 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 {
	u64 hnc_cnt;		/* Counter cleared            */
	u64 hnc_rx_bytes;	/* Rx bytes                   */
	u64 hnc_tx_bytes;	/* Tx bytes                   */
	u64 hnc_rx_uc_pkts;	/* Rx UC packets              */
	u64 hnc_rx_mc_pkts;     /* Rx MC packets              */
	u64 hnc_rx_bc_pkts;	/* Rx BC packets              */
	u64 hnc_tx_uc_pkts;	/* Tx UC packets              */
	u64 hnc_tx_mc_pkts;	/* Tx MC packets              */
	u64 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  */
	u64 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 channels        */
	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_keep_phy,
	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_apply_mac,
	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               */
	struct sockaddr_storage pending_mac; /* MAC address received from GMA */
	spinlock_t          lock;            /* Protect the NCSI device    */
	unsigned int        package_probe_id;/* Current ID during probe    */
	unsigned int        package_num;     /* Number of packages         */
	unsigned int        channel_probe_id;/* Current cahnnel ID during probe */
	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    */
	unsigned char       channel_count;     /* Num of channels to probe   */
};

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;     /* Destination 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
5e0fcc16 VK	67	/* Supported media status bits for Mellanox Mac affinity command.
	68	* Bit (0-2) for different protocol support; Bit 1 for RBT support,
	69	* bit 1 for SMBUS support and bit 2 for PCIE support. Bit (3-5)
	70	* for different protocol availability. Bit 4 for RBT, bit 4 for
	71	* SMBUS and bit 5 for PCIE.
	72	*/
	73	enum {
	74	MLX_MC_RBT_SUPPORT = 0x01, /* MC supports RBT */
	75	MLX_MC_RBT_AVL = 0x08, /* RBT medium is available */
	76	};
	77
fb4ee675 VK	78	/* OEM Vendor Manufacture ID */
	79	#define NCSI_OEM_MFR_MLX_ID 0x8119
	80	#define NCSI_OEM_MFR_BCM_ID 0x113d
abd2fddc IM	81	#define NCSI_OEM_MFR_INTEL_ID 0x157
abd2fddc IM	82	/* Intel specific OEM command */
205b95fe	83	#define NCSI_OEM_INTEL_CMD_GMA 0x06 /* CMD ID for Get MAC */
abd2fddc	84	#define NCSI_OEM_INTEL_CMD_KEEP_PHY 0x20 /* CMD ID for Keep PHY up */
cb10c7c0 VK	85	/* Broadcom specific OEM Command */
cb10c7c0 VK	86	#define NCSI_OEM_BCM_CMD_GMA 0x01 /* CMD ID for Get MAC */
16e8c4ca VK	87	/* Mellanox specific OEM Command */
	88	#define NCSI_OEM_MLX_CMD_GMA 0x00 /* CMD ID for Get MAC */
	89	#define NCSI_OEM_MLX_CMD_GMA_PARAM 0x1b /* Parameter for GMA */
5e0fcc16 VK	90	#define NCSI_OEM_MLX_CMD_SMAF 0x01 /* CMD ID for Set MC Affinity */
5e0fcc16 VK	91	#define NCSI_OEM_MLX_CMD_SMAF_PARAM 0x07 /* Parameter for SMAF */
cb10c7c0	92	/* OEM Command payload lengths*/
205b95fe	93	#define NCSI_OEM_INTEL_CMD_GMA_LEN 5
abd2fddc	94	#define NCSI_OEM_INTEL_CMD_KEEP_PHY_LEN 7
cb10c7c0	95	#define NCSI_OEM_BCM_CMD_GMA_LEN 12
16e8c4ca	96	#define NCSI_OEM_MLX_CMD_GMA_LEN 8
5e0fcc16 VK	97	#define NCSI_OEM_MLX_CMD_SMAF_LEN 60
	98	/* Offset in OEM request */
	99	#define MLX_SMAF_MAC_ADDR_OFFSET 8 /* Offset for MAC in SMAF */
	100	#define MLX_SMAF_MED_SUPPORT_OFFSET 14 /* Offset for medium in SMAF */
cb10c7c0 VK	101	/* Mac address offset in OEM response */
cb10c7c0 VK	102	#define BCM_MAC_ADDR_OFFSET 28
16e8c4ca	103	#define MLX_MAC_ADDR_OFFSET 8
205b95fe	104	#define INTEL_MAC_ADDR_OFFSET 1
cb10c7c0	105
fb4ee675	106
2d283bdd	107	struct ncsi_channel_version {
3084b58b PD	108	u8 major; /* NCSI version major */
	109	u8 minor; /* NCSI version minor */
	110	u8 update; /* NCSI version update */
	111	char alpha1; /* NCSI version alpha1 */
	112	char alpha2; /* NCSI version alpha2 */
195a8ec4	113	u8 fw_name[12]; /* Firmware name string */
2d283bdd GS	114	u32 fw_version; /* Firmware version */
	115	u16 pci_ids[4]; /* PCI identification */
	116	u32 mf_id; /* Manufacture ID */
	117	};
	118
	119	struct ncsi_channel_cap {
	120	u32 index; /* Index of channel capabilities */
	121	u32 cap; /* NCSI channel capability */
	122	};
	123
	124	struct ncsi_channel_mode {
	125	u32 index; /* Index of channel modes */
	126	u32 enable; /* Enabled or disabled */
	127	u32 size; /* Valid entries in ncm_data[] */
	128	u32 data[8]; /* Data entries */
	129	};
	130
062b3e1b SMJ	131	struct ncsi_channel_mac_filter {
	132	u8 n_uc;
	133	u8 n_mc;
	134	u8 n_mixed;
	135	u64 bitmap;
	136	unsigned char *addrs;
	137	};
	138
	139	struct ncsi_channel_vlan_filter {
	140	u8 n_vids;
	141	u64 bitmap;
	142	u16 *vids;
2d283bdd GS	143	};
	144
	145	struct ncsi_channel_stats {
e8a1bd83 HK	146	u64 hnc_cnt; /* Counter cleared */
	147	u64 hnc_rx_bytes; /* Rx bytes */
	148	u64 hnc_tx_bytes; /* Tx bytes */
	149	u64 hnc_rx_uc_pkts; /* Rx UC packets */
	150	u64 hnc_rx_mc_pkts; /* Rx MC packets */
	151	u64 hnc_rx_bc_pkts; /* Rx BC packets */
	152	u64 hnc_tx_uc_pkts; /* Tx UC packets */
	153	u64 hnc_tx_mc_pkts; /* Tx MC packets */
	154	u64 hnc_tx_bc_pkts; /* Tx BC packets */
2d283bdd GS	155	u32 hnc_fcs_err; /* FCS errors */
	156	u32 hnc_align_err; /* Alignment errors */
	157	u32 hnc_false_carrier; /* False carrier detection */
	158	u32 hnc_runt_pkts; /* Rx runt packets */
	159	u32 hnc_jabber_pkts; /* Rx jabber packets */
	160	u32 hnc_rx_pause_xon; /* Rx pause XON frames */
	161	u32 hnc_rx_pause_xoff; /* Rx XOFF frames */
	162	u32 hnc_tx_pause_xon; /* Tx XON frames */
	163	u32 hnc_tx_pause_xoff; /* Tx XOFF frames */
	164	u32 hnc_tx_s_collision; /* Single collision frames */
	165	u32 hnc_tx_m_collision; /* Multiple collision frames */
	166	u32 hnc_l_collision; /* Late collision frames */
	167	u32 hnc_e_collision; /* Excessive collision frames */
	168	u32 hnc_rx_ctl_frames; /* Rx control frames */
	169	u32 hnc_rx_64_frames; /* Rx 64-bytes frames */
	170	u32 hnc_rx_127_frames; /* Rx 65-127 bytes frames */
	171	u32 hnc_rx_255_frames; /* Rx 128-255 bytes frames */
	172	u32 hnc_rx_511_frames; /* Rx 256-511 bytes frames */
	173	u32 hnc_rx_1023_frames; /* Rx 512-1023 bytes frames */
	174	u32 hnc_rx_1522_frames; /* Rx 1024-1522 bytes frames */
	175	u32 hnc_rx_9022_frames; /* Rx 1523-9022 bytes frames */
	176	u32 hnc_tx_64_frames; /* Tx 64-bytes frames */
	177	u32 hnc_tx_127_frames; /* Tx 65-127 bytes frames */
	178	u32 hnc_tx_255_frames; /* Tx 128-255 bytes frames */
	179	u32 hnc_tx_511_frames; /* Tx 256-511 bytes frames */
	180	u32 hnc_tx_1023_frames; /* Tx 512-1023 bytes frames */
	181	u32 hnc_tx_1522_frames; /* Tx 1024-1522 bytes frames */
	182	u32 hnc_tx_9022_frames; /* Tx 1523-9022 bytes frames */
e8a1bd83	183	u64 hnc_rx_valid_bytes; /* Rx valid bytes */
2d283bdd GS	184	u32 hnc_rx_runt_pkts; /* Rx error runt packets */
	185	u32 hnc_rx_jabber_pkts; /* Rx error jabber packets */
	186	u32 ncsi_rx_cmds; /* Rx NCSI commands */
	187	u32 ncsi_dropped_cmds; /* Dropped commands */
	188	u32 ncsi_cmd_type_errs; /* Command type errors */
	189	u32 ncsi_cmd_csum_errs; /* Command checksum errors */
	190	u32 ncsi_rx_pkts; /* Rx NCSI packets */
	191	u32 ncsi_tx_pkts; /* Tx NCSI packets */
	192	u32 ncsi_tx_aen_pkts; /* Tx AEN packets */
	193	u32 pt_tx_pkts; /* Tx packets */
	194	u32 pt_tx_dropped; /* Tx dropped packets */
	195	u32 pt_tx_channel_err; /* Tx channel errors */
	196	u32 pt_tx_us_err; /* Tx undersize errors */
	197	u32 pt_rx_pkts; /* Rx packets */
	198	u32 pt_rx_dropped; /* Rx dropped packets */
	199	u32 pt_rx_channel_err; /* Rx channel errors */
	200	u32 pt_rx_us_err; /* Rx undersize errors */
	201	u32 pt_rx_os_err; /* Rx oversize errors */
	202	};
	203
	204	struct ncsi_dev_priv;
	205	struct ncsi_package;
	206
	207	#define NCSI_PACKAGE_SHIFT 5
	208	#define NCSI_PACKAGE_INDEX(c) (((c) >> NCSI_PACKAGE_SHIFT) & 0x7)
bc7e0f50	209	#define NCSI_RESERVED_CHANNEL 0x1f
2d283bdd GS	210	#define NCSI_CHANNEL_INDEX(c) ((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1))
2d283bdd GS	211	#define NCSI_TO_CHANNEL(p, c) (((p) << NCSI_PACKAGE_SHIFT) \| (c))
9771b8cc JLD	212	#define NCSI_MAX_PACKAGE 8
9771b8cc JLD	213	#define NCSI_MAX_CHANNEL 32
2d283bdd GS	214
	215	struct ncsi_channel {
	216	unsigned char id;
	217	int state;
	218	#define NCSI_CHANNEL_INACTIVE 1
	219	#define NCSI_CHANNEL_ACTIVE 2
e6f44ed6	220	#define NCSI_CHANNEL_INVISIBLE 3
21acf630	221	bool reconfigure_needed;
2d283bdd GS	222	spinlock_t lock; /* Protect filters etc */
	223	struct ncsi_package *package;
	224	struct ncsi_channel_version version;
	225	struct ncsi_channel_cap caps[NCSI_CAP_MAX];
	226	struct ncsi_channel_mode modes[NCSI_MODE_MAX];
062b3e1b SMJ	227	/* Filtering Settings */
	228	struct ncsi_channel_mac_filter mac_filter;
	229	struct ncsi_channel_vlan_filter vlan_filter;
2d283bdd	230	struct ncsi_channel_stats stats;
83afdc6a GS	231	struct {
	232	struct timer_list timer;
	233	bool enabled;
	234	unsigned int state;
	235	#define NCSI_CHANNEL_MONITOR_START 0
	236	#define NCSI_CHANNEL_MONITOR_RETRY 1
	237	#define NCSI_CHANNEL_MONITOR_WAIT 2
	238	#define NCSI_CHANNEL_MONITOR_WAIT_MAX 5
	239	} monitor;
2d283bdd	240	struct list_head node;
e6f44ed6	241	struct list_head link;
2d283bdd GS	242	};
	243
	244	struct ncsi_package {
	245	unsigned char id; /* NCSI 3-bits package ID */
	246	unsigned char uuid[16]; /* UUID */
	247	struct ncsi_dev_priv ndp; / NCSI device */
	248	spinlock_t lock; /* Protect the package */
	249	unsigned int channel_num; /* Number of channels */
4fb3ebbf	250	struct list_head channels; /* List of channels */
2d283bdd	251	struct list_head node; /* Form list of packages */
8d951a75 SMJ	252
	253	bool multi_channel; /* Enable multiple channels */
	254	u32 channel_whitelist; /* Channels to configure */
	255	struct ncsi_channel preferred_channel; / Primary channel */
2d283bdd GS	256	};
	257
	258	struct ncsi_request {
	259	unsigned char id; /* Request ID - 0 to 255 */
	260	bool used; /* Request that has been assigned */
a0509cbe GS	261	unsigned int flags; /* NCSI request property */
a0509cbe GS	262	#define NCSI_REQ_FLAG_EVENT_DRIVEN 1
9771b8cc	263	#define NCSI_REQ_FLAG_NETLINK_DRIVEN 2
2d283bdd GS	264	struct ncsi_dev_priv ndp; / Associated NCSI device */
	265	struct sk_buff cmd; / Associated NCSI command packet */
	266	struct sk_buff rsp; / Associated NCSI response packet */
	267	struct timer_list timer; /* Timer on waiting for response */
	268	bool enabled; /* Time has been enabled or not */
9771b8cc JLD	269	u32 snd_seq; /* netlink sending sequence number */
	270	u32 snd_portid; /* netlink portid of sender */
	271	struct nlmsghdr nlhdr; /* netlink message header */
2d283bdd GS	272	};
2d283bdd GS	273
e6f44ed6 GS	274	enum {
	275	ncsi_dev_state_major = 0xff00,
	276	ncsi_dev_state_minor = 0x00ff,
	277	ncsi_dev_state_probe_deselect = 0x0201,
	278	ncsi_dev_state_probe_package,
	279	ncsi_dev_state_probe_channel,
5e0fcc16 VK	280	ncsi_dev_state_probe_mlx_gma,
5e0fcc16 VK	281	ncsi_dev_state_probe_mlx_smaf,
e6f44ed6	282	ncsi_dev_state_probe_cis,
abd2fddc	283	ncsi_dev_state_probe_keep_phy,
e6f44ed6 GS	284	ncsi_dev_state_probe_gvi,
	285	ncsi_dev_state_probe_gc,
	286	ncsi_dev_state_probe_gls,
	287	ncsi_dev_state_probe_dp,
	288	ncsi_dev_state_config_sp = 0x0301,
	289	ncsi_dev_state_config_cis,
cb10c7c0	290	ncsi_dev_state_config_oem_gma,
9e2bbab9	291	ncsi_dev_state_config_apply_mac,
21acf630 SMJ	292	ncsi_dev_state_config_clear_vids,
	293	ncsi_dev_state_config_svf,
	294	ncsi_dev_state_config_ev,
e6f44ed6 GS	295	ncsi_dev_state_config_sma,
e6f44ed6 GS	296	ncsi_dev_state_config_ebf,
cf0eba33	297	ncsi_dev_state_config_dgmf,
e6f44ed6 GS	298	ncsi_dev_state_config_ecnt,
	299	ncsi_dev_state_config_ec,
	300	ncsi_dev_state_config_ae,
	301	ncsi_dev_state_config_gls,
	302	ncsi_dev_state_config_done,
	303	ncsi_dev_state_suspend_select = 0x0401,
008a424a	304	ncsi_dev_state_suspend_gls,
e6f44ed6 GS	305	ncsi_dev_state_suspend_dcnt,
	306	ncsi_dev_state_suspend_dc,
	307	ncsi_dev_state_suspend_deselect,
	308	ncsi_dev_state_suspend_done
	309	};
	310
21acf630 SMJ	311	struct vlan_vid {
	312	struct list_head list;
	313	__be16 proto;
	314	u16 vid;
	315	};
	316
2d283bdd GS	317	struct ncsi_dev_priv {
	318	struct ncsi_dev ndev; /* Associated NCSI device */
	319	unsigned int flags; /* NCSI device flags */
e6f44ed6 GS	320	#define NCSI_DEV_PROBED 1 /* Finalized NCSI topology */
	321	#define NCSI_DEV_HWA 2 /* Enabled HW arbitration */
	322	#define NCSI_DEV_RESHUFFLE 4
2878a2cf	323	#define NCSI_DEV_RESET 8 /* Reset state of NC */
cb10c7c0	324	unsigned int gma_flag; /* OEM GMA flag */
db586cad	325	struct sockaddr_storage pending_mac; /* MAC address received from GMA */
2d283bdd	326	spinlock_t lock; /* Protect the NCSI device */
8e13f70b	327	unsigned int package_probe_id;/* Current ID during probe */
2d283bdd	328	unsigned int package_num; /* Number of packages */
e85e271d	329	unsigned int channel_probe_id;/* Current cahnnel ID during probe */
2d283bdd	330	struct list_head packages; /* List of packages */
bbc7c01e	331	struct ncsi_channel hot_channel; / Channel was ever active */
2d283bdd GS	332	struct ncsi_request requests[256]; /* Request table */
2d283bdd GS	333	unsigned int request_id; /* Last used request ID */
a15af54f	334	#define NCSI_REQ_START_IDX 1
e6f44ed6 GS	335	unsigned int pending_req_num; /* Number of pending requests */
	336	struct ncsi_package active_package; / Currently handled package */
	337	struct ncsi_channel active_channel; / Currently handled channel */
	338	struct list_head channel_queue; /* Config queue of channels */
	339	struct work_struct work; /* For channel management */
	340	struct packet_type ptype; /* NCSI packet Rx handler */
2d283bdd	341	struct list_head node; /* Form NCSI device list */
6e9c0075	342	#define NCSI_MAX_VLAN_VIDS 15
21acf630	343	struct list_head vlan_vids; /* List of active VLAN IDs */
8d951a75 SMJ	344
8d951a75 SMJ	345	bool multi_package; /* Enable multiple packages */
5e0fcc16	346	bool mlx_multi_host; /* Enable multi host Mellanox */
8d951a75	347	u32 package_whitelist; /* Packages to configure */
e85e271d	348	unsigned char channel_count; /* Num of channels to probe */
2d283bdd GS	349	};
2d283bdd GS	350
6389eaa7 GS	351	struct ncsi_cmd_arg {
	352	struct ncsi_dev_priv ndp; / Associated NCSI device */
	353	unsigned char type; /* Command in the NCSI packet */
	354	unsigned char id; /* Request ID (sequence number) */
	355	unsigned char package; /* Destination package ID */
4fb3ebbf	356	unsigned char channel; /* Destination channel ID or 0x1f */
6389eaa7	357	unsigned short payload; /* Command packet payload length */
a0509cbe	358	unsigned int req_flags; /* NCSI request properties */
6389eaa7 GS	359	union {
	360	unsigned char bytes[16]; /* Command packet specific data */
	361	unsigned short words[8];
	362	unsigned int dwords[4];
	363	};
fb4ee675	364	unsigned char data; / NCSI OEM data */
9771b8cc	365	struct genl_info info; / Netlink information */
6389eaa7 GS	366	};
6389eaa7 GS	367
2d283bdd GS	368	extern struct list_head ncsi_dev_list;
	369	extern spinlock_t ncsi_dev_lock;
	370
	371	#define TO_NCSI_DEV_PRIV(nd) \
	372	container_of(nd, struct ncsi_dev_priv, ndev)
	373	#define NCSI_FOR_EACH_DEV(ndp) \
	374	list_for_each_entry_rcu(ndp, &ncsi_dev_list, node)
	375	#define NCSI_FOR_EACH_PACKAGE(ndp, np) \
	376	list_for_each_entry_rcu(np, &ndp->packages, node)
	377	#define NCSI_FOR_EACH_CHANNEL(np, nc) \
	378	list_for_each_entry_rcu(nc, &np->channels, node)
	379
	380	/* Resources */
2878a2cf	381	int ncsi_reset_dev(struct ncsi_dev *nd);
e6f44ed6 GS	382	void ncsi_start_channel_monitor(struct ncsi_channel *nc);
e6f44ed6 GS	383	void ncsi_stop_channel_monitor(struct ncsi_channel *nc);
2d283bdd GS	384	struct ncsi_channel ncsi_find_channel(struct ncsi_package np,
	385	unsigned char id);
	386	struct ncsi_channel ncsi_add_channel(struct ncsi_package np,
	387	unsigned char id);
	388	struct ncsi_package ncsi_find_package(struct ncsi_dev_priv ndp,
	389	unsigned char id);
	390	struct ncsi_package ncsi_add_package(struct ncsi_dev_priv ndp,
	391	unsigned char id);
	392	void ncsi_remove_package(struct ncsi_package *np);
	393	void ncsi_find_package_and_channel(struct ncsi_dev_priv *ndp,
	394	unsigned char id,
	395	struct ncsi_package **np,
	396	struct ncsi_channel **nc);
a0509cbe GS	397	struct ncsi_request ncsi_alloc_request(struct ncsi_dev_priv ndp,
a0509cbe GS	398	unsigned int req_flags);
2d283bdd GS	399	void ncsi_free_request(struct ncsi_request *nr);
2d283bdd GS	400	struct ncsi_dev ncsi_find_dev(struct net_device dev);
e6f44ed6	401	int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);
8d951a75 SMJ	402	bool ncsi_channel_has_link(struct ncsi_channel *channel);
	403	bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp,
	404	struct ncsi_channel *channel);
	405	int ncsi_update_tx_channel(struct ncsi_dev_priv *ndp,
	406	struct ncsi_package *np,
	407	struct ncsi_channel *disable,
	408	struct ncsi_channel *enable);
2d283bdd	409
6389eaa7 GS	410	/* Packet handlers */
	411	u32 ncsi_calculate_checksum(unsigned char *data, int len);
	412	int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca);
138635cc GS	413	int ncsi_rcv_rsp(struct sk_buff skb, struct net_device dev,
138635cc GS	414	struct packet_type pt, struct net_device orig_dev);
7a82ecf4	415	int ncsi_aen_handler(struct ncsi_dev_priv ndp, struct sk_buff skb);
6389eaa7	416
2d283bdd	417	#endif /* __NCSI_INTERNAL_H__ */