| /* |
| * 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 |
| }; |
| |
| enum { |
| NCSI_FILTER_BASE = 0, |
| NCSI_FILTER_VLAN = 0, |
| NCSI_FILTER_UC, |
| NCSI_FILTER_MC, |
| NCSI_FILTER_MIXED, |
| NCSI_FILTER_MAX |
| }; |
| |
| 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_filter { |
| u32 index; /* Index of channel filters */ |
| u32 total; /* Total entries in the filter table */ |
| u64 bitmap; /* Bitmap of valid entries */ |
| u32 data[]; /* Data for the valid entries */ |
| }; |
| |
| 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)) |
| |
| struct ncsi_channel { |
| unsigned char id; |
| int state; |
| #define NCSI_CHANNEL_INACTIVE 1 |
| #define NCSI_CHANNEL_ACTIVE 2 |
| #define NCSI_CHANNEL_INVISIBLE 3 |
| 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]; |
| struct ncsi_channel_filter *filters[NCSI_FILTER_MAX]; |
| 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 */ |
| }; |
| |
| 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 |
| 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 */ |
| }; |
| |
| 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_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 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 |
| 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_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 */ |
| }; |
| |
| 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]; |
| }; |
| }; |
| |
| 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_find_filter(struct ncsi_channel *nc, int table, void *data); |
| int ncsi_add_filter(struct ncsi_channel *nc, int table, void *data); |
| int ncsi_remove_filter(struct ncsi_channel *nc, int table, int index); |
| 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); |
| |
| /* 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__ */ |
