353 lines
14 KiB
C
353 lines
14 KiB
C
/*
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* Copyright Gavin Shan, IBM Corporation 2016.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __NCSI_INTERNAL_H__
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#define __NCSI_INTERNAL_H__
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enum {
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NCSI_CAP_BASE = 0,
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NCSI_CAP_GENERIC = 0,
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NCSI_CAP_BC,
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NCSI_CAP_MC,
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NCSI_CAP_BUFFER,
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NCSI_CAP_AEN,
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NCSI_CAP_VLAN,
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NCSI_CAP_MAX
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};
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enum {
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NCSI_CAP_GENERIC_HWA = 0x01, /* HW arbitration */
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NCSI_CAP_GENERIC_HDS = 0x02, /* HNC driver status change */
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NCSI_CAP_GENERIC_FC = 0x04, /* HNC to MC flow control */
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NCSI_CAP_GENERIC_FC1 = 0x08, /* MC to HNC flow control */
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NCSI_CAP_GENERIC_MC = 0x10, /* Global MC filtering */
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NCSI_CAP_GENERIC_HWA_UNKNOWN = 0x00, /* Unknown HW arbitration */
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NCSI_CAP_GENERIC_HWA_SUPPORT = 0x20, /* Supported HW arbitration */
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NCSI_CAP_GENERIC_HWA_NOT_SUPPORT = 0x40, /* No HW arbitration */
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NCSI_CAP_GENERIC_HWA_RESERVED = 0x60, /* Reserved HW arbitration */
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NCSI_CAP_GENERIC_HWA_MASK = 0x60, /* Mask for HW arbitration */
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NCSI_CAP_GENERIC_MASK = 0x7f,
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NCSI_CAP_BC_ARP = 0x01, /* ARP packet filtering */
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NCSI_CAP_BC_DHCPC = 0x02, /* DHCP client filtering */
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NCSI_CAP_BC_DHCPS = 0x04, /* DHCP server filtering */
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NCSI_CAP_BC_NETBIOS = 0x08, /* NetBIOS packet filtering */
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NCSI_CAP_BC_MASK = 0x0f,
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NCSI_CAP_MC_IPV6_NEIGHBOR = 0x01, /* IPv6 neighbor filtering */
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NCSI_CAP_MC_IPV6_ROUTER = 0x02, /* IPv6 router filering */
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NCSI_CAP_MC_DHCPV6_RELAY = 0x04, /* DHCPv6 relay / server MC */
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NCSI_CAP_MC_DHCPV6_WELL_KNOWN = 0x08, /* DHCPv6 well-known MC */
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NCSI_CAP_MC_IPV6_MLD = 0x10, /* IPv6 MLD filtering */
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NCSI_CAP_MC_IPV6_NEIGHBOR_S = 0x20, /* IPv6 neighbour filtering */
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NCSI_CAP_MC_MASK = 0x3f,
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NCSI_CAP_AEN_LSC = 0x01, /* Link status change */
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NCSI_CAP_AEN_CR = 0x02, /* Configuration required */
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NCSI_CAP_AEN_HDS = 0x04, /* HNC driver status */
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NCSI_CAP_AEN_MASK = 0x07,
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NCSI_CAP_VLAN_ONLY = 0x01, /* Filter VLAN packet only */
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NCSI_CAP_VLAN_NO = 0x02, /* Filter VLAN and non-VLAN */
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NCSI_CAP_VLAN_ANY = 0x04, /* Filter Any-and-non-VLAN */
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NCSI_CAP_VLAN_MASK = 0x07
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};
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enum {
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NCSI_MODE_BASE = 0,
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NCSI_MODE_ENABLE = 0,
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NCSI_MODE_TX_ENABLE,
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NCSI_MODE_LINK,
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NCSI_MODE_VLAN,
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NCSI_MODE_BC,
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NCSI_MODE_MC,
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NCSI_MODE_AEN,
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NCSI_MODE_FC,
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NCSI_MODE_MAX
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};
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enum {
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NCSI_FILTER_BASE = 0,
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NCSI_FILTER_VLAN = 0,
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NCSI_FILTER_UC,
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NCSI_FILTER_MC,
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NCSI_FILTER_MIXED,
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NCSI_FILTER_MAX
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};
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struct ncsi_channel_version {
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u32 version; /* Supported BCD encoded NCSI version */
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u32 alpha2; /* Supported BCD encoded NCSI version */
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u8 fw_name[12]; /* Firware name string */
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u32 fw_version; /* Firmware version */
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u16 pci_ids[4]; /* PCI identification */
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u32 mf_id; /* Manufacture ID */
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};
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struct ncsi_channel_cap {
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u32 index; /* Index of channel capabilities */
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u32 cap; /* NCSI channel capability */
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};
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struct ncsi_channel_mode {
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u32 index; /* Index of channel modes */
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u32 enable; /* Enabled or disabled */
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u32 size; /* Valid entries in ncm_data[] */
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u32 data[8]; /* Data entries */
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};
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struct ncsi_channel_filter {
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u32 index; /* Index of channel filters */
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u32 total; /* Total entries in the filter table */
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u64 bitmap; /* Bitmap of valid entries */
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u32 data[]; /* Data for the valid entries */
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};
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struct ncsi_channel_stats {
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u32 hnc_cnt_hi; /* Counter cleared */
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u32 hnc_cnt_lo; /* Counter cleared */
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u32 hnc_rx_bytes; /* Rx bytes */
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u32 hnc_tx_bytes; /* Tx bytes */
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u32 hnc_rx_uc_pkts; /* Rx UC packets */
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u32 hnc_rx_mc_pkts; /* Rx MC packets */
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u32 hnc_rx_bc_pkts; /* Rx BC packets */
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u32 hnc_tx_uc_pkts; /* Tx UC packets */
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u32 hnc_tx_mc_pkts; /* Tx MC packets */
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u32 hnc_tx_bc_pkts; /* Tx BC packets */
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u32 hnc_fcs_err; /* FCS errors */
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u32 hnc_align_err; /* Alignment errors */
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u32 hnc_false_carrier; /* False carrier detection */
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u32 hnc_runt_pkts; /* Rx runt packets */
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u32 hnc_jabber_pkts; /* Rx jabber packets */
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u32 hnc_rx_pause_xon; /* Rx pause XON frames */
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u32 hnc_rx_pause_xoff; /* Rx XOFF frames */
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u32 hnc_tx_pause_xon; /* Tx XON frames */
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u32 hnc_tx_pause_xoff; /* Tx XOFF frames */
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u32 hnc_tx_s_collision; /* Single collision frames */
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u32 hnc_tx_m_collision; /* Multiple collision frames */
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u32 hnc_l_collision; /* Late collision frames */
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u32 hnc_e_collision; /* Excessive collision frames */
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u32 hnc_rx_ctl_frames; /* Rx control frames */
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u32 hnc_rx_64_frames; /* Rx 64-bytes frames */
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u32 hnc_rx_127_frames; /* Rx 65-127 bytes frames */
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u32 hnc_rx_255_frames; /* Rx 128-255 bytes frames */
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u32 hnc_rx_511_frames; /* Rx 256-511 bytes frames */
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u32 hnc_rx_1023_frames; /* Rx 512-1023 bytes frames */
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u32 hnc_rx_1522_frames; /* Rx 1024-1522 bytes frames */
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u32 hnc_rx_9022_frames; /* Rx 1523-9022 bytes frames */
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u32 hnc_tx_64_frames; /* Tx 64-bytes frames */
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u32 hnc_tx_127_frames; /* Tx 65-127 bytes frames */
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u32 hnc_tx_255_frames; /* Tx 128-255 bytes frames */
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u32 hnc_tx_511_frames; /* Tx 256-511 bytes frames */
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u32 hnc_tx_1023_frames; /* Tx 512-1023 bytes frames */
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u32 hnc_tx_1522_frames; /* Tx 1024-1522 bytes frames */
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u32 hnc_tx_9022_frames; /* Tx 1523-9022 bytes frames */
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u32 hnc_rx_valid_bytes; /* Rx valid bytes */
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u32 hnc_rx_runt_pkts; /* Rx error runt packets */
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u32 hnc_rx_jabber_pkts; /* Rx error jabber packets */
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u32 ncsi_rx_cmds; /* Rx NCSI commands */
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u32 ncsi_dropped_cmds; /* Dropped commands */
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u32 ncsi_cmd_type_errs; /* Command type errors */
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u32 ncsi_cmd_csum_errs; /* Command checksum errors */
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u32 ncsi_rx_pkts; /* Rx NCSI packets */
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u32 ncsi_tx_pkts; /* Tx NCSI packets */
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u32 ncsi_tx_aen_pkts; /* Tx AEN packets */
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u32 pt_tx_pkts; /* Tx packets */
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u32 pt_tx_dropped; /* Tx dropped packets */
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u32 pt_tx_channel_err; /* Tx channel errors */
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u32 pt_tx_us_err; /* Tx undersize errors */
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u32 pt_rx_pkts; /* Rx packets */
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u32 pt_rx_dropped; /* Rx dropped packets */
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u32 pt_rx_channel_err; /* Rx channel errors */
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u32 pt_rx_us_err; /* Rx undersize errors */
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u32 pt_rx_os_err; /* Rx oversize errors */
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};
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struct ncsi_dev_priv;
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struct ncsi_package;
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#define NCSI_PACKAGE_SHIFT 5
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#define NCSI_PACKAGE_INDEX(c) (((c) >> NCSI_PACKAGE_SHIFT) & 0x7)
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#define NCSI_RESERVED_CHANNEL 0x1f
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#define NCSI_CHANNEL_INDEX(c) ((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1))
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#define NCSI_TO_CHANNEL(p, c) (((p) << NCSI_PACKAGE_SHIFT) | (c))
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struct ncsi_channel {
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unsigned char id;
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int state;
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#define NCSI_CHANNEL_INACTIVE 1
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#define NCSI_CHANNEL_ACTIVE 2
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#define NCSI_CHANNEL_INVISIBLE 3
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bool reconfigure_needed;
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spinlock_t lock; /* Protect filters etc */
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struct ncsi_package *package;
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struct ncsi_channel_version version;
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struct ncsi_channel_cap caps[NCSI_CAP_MAX];
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struct ncsi_channel_mode modes[NCSI_MODE_MAX];
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struct ncsi_channel_filter *filters[NCSI_FILTER_MAX];
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struct ncsi_channel_stats stats;
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struct {
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struct timer_list timer;
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bool enabled;
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unsigned int state;
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#define NCSI_CHANNEL_MONITOR_START 0
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#define NCSI_CHANNEL_MONITOR_RETRY 1
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#define NCSI_CHANNEL_MONITOR_WAIT 2
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#define NCSI_CHANNEL_MONITOR_WAIT_MAX 5
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} monitor;
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struct list_head node;
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struct list_head link;
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};
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struct ncsi_package {
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unsigned char id; /* NCSI 3-bits package ID */
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unsigned char uuid[16]; /* UUID */
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struct ncsi_dev_priv *ndp; /* NCSI device */
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spinlock_t lock; /* Protect the package */
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unsigned int channel_num; /* Number of channels */
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struct list_head channels; /* List of chanels */
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struct list_head node; /* Form list of packages */
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};
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struct ncsi_request {
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unsigned char id; /* Request ID - 0 to 255 */
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bool used; /* Request that has been assigned */
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unsigned int flags; /* NCSI request property */
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#define NCSI_REQ_FLAG_EVENT_DRIVEN 1
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struct ncsi_dev_priv *ndp; /* Associated NCSI device */
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struct sk_buff *cmd; /* Associated NCSI command packet */
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struct sk_buff *rsp; /* Associated NCSI response packet */
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struct timer_list timer; /* Timer on waiting for response */
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bool enabled; /* Time has been enabled or not */
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};
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enum {
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ncsi_dev_state_major = 0xff00,
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ncsi_dev_state_minor = 0x00ff,
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ncsi_dev_state_probe_deselect = 0x0201,
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ncsi_dev_state_probe_package,
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ncsi_dev_state_probe_channel,
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ncsi_dev_state_probe_cis,
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ncsi_dev_state_probe_gvi,
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ncsi_dev_state_probe_gc,
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ncsi_dev_state_probe_gls,
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ncsi_dev_state_probe_dp,
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ncsi_dev_state_config_sp = 0x0301,
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ncsi_dev_state_config_cis,
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ncsi_dev_state_config_clear_vids,
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ncsi_dev_state_config_svf,
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ncsi_dev_state_config_ev,
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ncsi_dev_state_config_sma,
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ncsi_dev_state_config_ebf,
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#if IS_ENABLED(CONFIG_IPV6)
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ncsi_dev_state_config_egmf,
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#endif
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ncsi_dev_state_config_ecnt,
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ncsi_dev_state_config_ec,
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ncsi_dev_state_config_ae,
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ncsi_dev_state_config_gls,
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ncsi_dev_state_config_done,
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ncsi_dev_state_suspend_select = 0x0401,
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ncsi_dev_state_suspend_gls,
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ncsi_dev_state_suspend_dcnt,
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ncsi_dev_state_suspend_dc,
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ncsi_dev_state_suspend_deselect,
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ncsi_dev_state_suspend_done
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};
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struct vlan_vid {
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struct list_head list;
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__be16 proto;
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u16 vid;
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};
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struct ncsi_dev_priv {
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struct ncsi_dev ndev; /* Associated NCSI device */
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unsigned int flags; /* NCSI device flags */
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#define NCSI_DEV_PROBED 1 /* Finalized NCSI topology */
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#define NCSI_DEV_HWA 2 /* Enabled HW arbitration */
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#define NCSI_DEV_RESHUFFLE 4
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spinlock_t lock; /* Protect the NCSI device */
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#if IS_ENABLED(CONFIG_IPV6)
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unsigned int inet6_addr_num; /* Number of IPv6 addresses */
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#endif
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unsigned int package_num; /* Number of packages */
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struct list_head packages; /* List of packages */
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struct ncsi_channel *hot_channel; /* Channel was ever active */
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struct ncsi_request requests[256]; /* Request table */
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unsigned int request_id; /* Last used request ID */
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#define NCSI_REQ_START_IDX 1
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unsigned int pending_req_num; /* Number of pending requests */
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struct ncsi_package *active_package; /* Currently handled package */
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struct ncsi_channel *active_channel; /* Currently handled channel */
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struct list_head channel_queue; /* Config queue of channels */
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struct work_struct work; /* For channel management */
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struct packet_type ptype; /* NCSI packet Rx handler */
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struct list_head node; /* Form NCSI device list */
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#define NCSI_MAX_VLAN_VIDS 15
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struct list_head vlan_vids; /* List of active VLAN IDs */
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};
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struct ncsi_cmd_arg {
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struct ncsi_dev_priv *ndp; /* Associated NCSI device */
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unsigned char type; /* Command in the NCSI packet */
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unsigned char id; /* Request ID (sequence number) */
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unsigned char package; /* Destination package ID */
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unsigned char channel; /* Detination channel ID or 0x1f */
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unsigned short payload; /* Command packet payload length */
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unsigned int req_flags; /* NCSI request properties */
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union {
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unsigned char bytes[16]; /* Command packet specific data */
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unsigned short words[8];
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unsigned int dwords[4];
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};
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};
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extern struct list_head ncsi_dev_list;
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extern spinlock_t ncsi_dev_lock;
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#define TO_NCSI_DEV_PRIV(nd) \
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container_of(nd, struct ncsi_dev_priv, ndev)
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#define NCSI_FOR_EACH_DEV(ndp) \
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list_for_each_entry_rcu(ndp, &ncsi_dev_list, node)
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#define NCSI_FOR_EACH_PACKAGE(ndp, np) \
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list_for_each_entry_rcu(np, &ndp->packages, node)
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#define NCSI_FOR_EACH_CHANNEL(np, nc) \
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list_for_each_entry_rcu(nc, &np->channels, node)
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/* Resources */
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int ncsi_find_filter(struct ncsi_channel *nc, int table, void *data);
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int ncsi_add_filter(struct ncsi_channel *nc, int table, void *data);
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int ncsi_remove_filter(struct ncsi_channel *nc, int table, int index);
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void ncsi_start_channel_monitor(struct ncsi_channel *nc);
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void ncsi_stop_channel_monitor(struct ncsi_channel *nc);
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struct ncsi_channel *ncsi_find_channel(struct ncsi_package *np,
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unsigned char id);
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struct ncsi_channel *ncsi_add_channel(struct ncsi_package *np,
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unsigned char id);
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struct ncsi_package *ncsi_find_package(struct ncsi_dev_priv *ndp,
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unsigned char id);
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struct ncsi_package *ncsi_add_package(struct ncsi_dev_priv *ndp,
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unsigned char id);
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void ncsi_remove_package(struct ncsi_package *np);
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void ncsi_find_package_and_channel(struct ncsi_dev_priv *ndp,
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unsigned char id,
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struct ncsi_package **np,
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struct ncsi_channel **nc);
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struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp,
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unsigned int req_flags);
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void ncsi_free_request(struct ncsi_request *nr);
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struct ncsi_dev *ncsi_find_dev(struct net_device *dev);
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int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);
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/* Packet handlers */
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u32 ncsi_calculate_checksum(unsigned char *data, int len);
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int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca);
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int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,
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struct packet_type *pt, struct net_device *orig_dev);
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int ncsi_aen_handler(struct ncsi_dev_priv *ndp, struct sk_buff *skb);
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#endif /* __NCSI_INTERNAL_H__ */
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