hw/net/e1000x_common.h

   1 /*
   2 * QEMU e1000(e) emulation - shared code
   3 *
   4 * Copyright (c) 2008 Qumranet
   5 *
   6 * Based on work done by:
   7 * Nir Peleg, Tutis Systems Ltd. for Qumranet Inc.
   8 * Copyright (c) 2007 Dan Aloni
   9 * Copyright (c) 2004 Antony T Curtis
  10 *
  11 * This library is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU Lesser General Public
  13 * License as published by the Free Software Foundation; either
  14 * version 2 of the License, or (at your option) any later version.
  15 *
  16 * This library is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 * Lesser General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU Lesser General Public
  22 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "e1000_regs.h"
  26
  27 #define defreg(x)   x = (E1000_##x >> 2)
  28 enum {
  29     defreg(CTRL),    defreg(EECD),    defreg(EERD),    defreg(GPRC),
  30     defreg(GPTC),    defreg(ICR),     defreg(ICS),     defreg(IMC),
  31     defreg(IMS),     defreg(LEDCTL),  defreg(MANC),    defreg(MDIC),
  32     defreg(MPC),     defreg(PBA),     defreg(RCTL),    defreg(RDBAH0),
  33     defreg(RDBAL0),  defreg(RDH0),    defreg(RDLEN0),  defreg(RDT0),
  34     defreg(STATUS),  defreg(SWSM),    defreg(TCTL),    defreg(TDBAH),
  35     defreg(TDBAL),   defreg(TDH),     defreg(TDLEN),   defreg(TDT),
  36     defreg(TDLEN1),  defreg(TDBAL1),  defreg(TDBAH1),  defreg(TDH1),
  37     defreg(TDT1),    defreg(TORH),    defreg(TORL),    defreg(TOTH),
  38     defreg(TOTL),    defreg(TPR),     defreg(TPT),     defreg(TXDCTL),
  39     defreg(WUFC),    defreg(RA),      defreg(MTA),     defreg(CRCERRS),
  40     defreg(VFTA),    defreg(VET),     defreg(RDTR),    defreg(RADV),
  41     defreg(TADV),    defreg(ITR),     defreg(SCC),     defreg(ECOL),
  42     defreg(MCC),     defreg(LATECOL), defreg(COLC),    defreg(DC),
  43     defreg(TNCRS),   defreg(SEC),     defreg(CEXTERR), defreg(RLEC),
  44     defreg(XONRXC),  defreg(XONTXC),  defreg(XOFFRXC), defreg(XOFFTXC),
  45     defreg(FCRUC),   defreg(AIT),     defreg(TDFH),    defreg(TDFT),
  46     defreg(TDFHS),   defreg(TDFTS),   defreg(TDFPC),   defreg(WUC),
  47     defreg(WUS),     defreg(POEMB),   defreg(PBS),     defreg(RDFH),
  48     defreg(RDFT),    defreg(RDFHS),   defreg(RDFTS),   defreg(RDFPC),
  49     defreg(PBM),     defreg(IPAV),    defreg(IP4AT),   defreg(IP6AT),
  50     defreg(WUPM),    defreg(FFLT),    defreg(FFMT),    defreg(FFVT),
  51     defreg(TARC0),   defreg(TARC1),   defreg(IAM),     defreg(EXTCNF_CTRL),
  52     defreg(GCR),     defreg(TIMINCA), defreg(EIAC),    defreg(CTRL_EXT),
  53     defreg(IVAR),    defreg(MFUTP01), defreg(MFUTP23), defreg(MANC2H),
  54     defreg(MFVAL),   defreg(MDEF),    defreg(FACTPS),  defreg(FTFT),
  55     defreg(RUC),     defreg(ROC),     defreg(RFC),     defreg(RJC),
  56     defreg(PRC64),   defreg(PRC127),  defreg(PRC255),  defreg(PRC511),
  57     defreg(PRC1023), defreg(PRC1522), defreg(PTC64),   defreg(PTC127),
  58     defreg(PTC255),  defreg(PTC511),  defreg(PTC1023), defreg(PTC1522),
  59     defreg(GORCL),   defreg(GORCH),   defreg(GOTCL),   defreg(GOTCH),
  60     defreg(RNBC),    defreg(BPRC),    defreg(MPRC),    defreg(RFCTL),
  61     defreg(PSRCTL),  defreg(MPTC),    defreg(BPTC),    defreg(TSCTFC),
  62     defreg(IAC),     defreg(MGTPRC),  defreg(MGTPDC),  defreg(MGTPTC),
  63     defreg(TSCTC),   defreg(RXCSUM),  defreg(FUNCTAG), defreg(GSCL_1),
  64     defreg(GSCL_2),  defreg(GSCL_3),  defreg(GSCL_4),  defreg(GSCN_0),
  65     defreg(GSCN_1),  defreg(GSCN_2),  defreg(GSCN_3),  defreg(GCR2),
  66     defreg(RAID),    defreg(RSRPD),   defreg(TIDV),    defreg(EITR),
  67     defreg(MRQC),    defreg(RETA),    defreg(RSSRK),   defreg(RDBAH1),
  68     defreg(RDBAL1),  defreg(RDLEN1),  defreg(RDH1),    defreg(RDT1),
  69     defreg(PBACLR),  defreg(FCAL),    defreg(FCAH),    defreg(FCT),
  70     defreg(FCRTH),   defreg(FCRTL),   defreg(FCTTV),   defreg(FCRTV),
  71     defreg(FLA),     defreg(EEWR),    defreg(FLOP),    defreg(FLOL),
  72     defreg(FLSWCTL), defreg(FLSWCNT), defreg(RXDCTL),  defreg(RXDCTL1),
  73     defreg(MAVTV0),  defreg(MAVTV1),  defreg(MAVTV2),  defreg(MAVTV3),
  74     defreg(TXSTMPL), defreg(TXSTMPH), defreg(SYSTIML), defreg(SYSTIMH),
  75     defreg(RXCFGL),  defreg(RXUDP),   defreg(TIMADJL), defreg(TIMADJH),
  76     defreg(RXSTMPH), defreg(RXSTMPL), defreg(RXSATRL), defreg(RXSATRH),
  77     defreg(FLASHT),  defreg(TIPG),    defreg(RDH),     defreg(RDT),
  78     defreg(RDLEN),   defreg(RDBAH),   defreg(RDBAL),
  79     defreg(TXDCTL1),
  80     defreg(FLSWDATA),
  81     defreg(CTRL_DUP),
  82     defreg(EXTCNF_SIZE),
  83     defreg(EEMNGCTL),
  84     defreg(EEMNGDATA),
  85     defreg(FLMNGCTL),
  86     defreg(FLMNGDATA),
  87     defreg(FLMNGCNT),
  88     defreg(TSYNCRXCTL),
  89     defreg(TSYNCTXCTL),
  90
  91     /* Aliases */
  92     defreg(RDH0_A),  defreg(RDT0_A),  defreg(RDTR_A),  defreg(RDFH_A),
  93     defreg(RDFT_A),  defreg(TDH_A),   defreg(TDT_A),   defreg(TIDV_A),
  94     defreg(TDFH_A),  defreg(TDFT_A),  defreg(RA_A),    defreg(RDBAL0_A),
  95     defreg(TDBAL_A), defreg(TDLEN_A), defreg(VFTA_A),  defreg(RDLEN0_A),
  96     defreg(FCRTL_A), defreg(FCRTH_A)
  97 };
  98
  99 static inline void
 100 e1000x_inc_reg_if_not_full(uint32_t *mac, int index)
 101 {
 102     if (mac[index] != 0xffffffff) {
 103         mac[index]++;
 104     }
 105 }
 106
 107 static inline void
 108 e1000x_grow_8reg_if_not_full(uint32_t *mac, int index, int size)
 109 {
 110     uint64_t sum = mac[index] | (uint64_t)mac[index + 1] << 32;
 111
 112     if (sum + size < sum) {
 113         sum = ~0ULL;
 114     } else {
 115         sum += size;
 116     }
 117     mac[index] = sum;
 118     mac[index + 1] = sum >> 32;
 119 }
 120
 121 static inline int
 122 e1000x_vlan_enabled(uint32_t *mac)
 123 {
 124     return ((mac[CTRL] & E1000_CTRL_VME) != 0);
 125 }
 126
 127 static inline int
 128 e1000x_is_vlan_txd(uint32_t txd_lower)
 129 {
 130     return ((txd_lower & E1000_TXD_CMD_VLE) != 0);
 131 }
 132
 133 static inline int
 134 e1000x_vlan_rx_filter_enabled(uint32_t *mac)
 135 {
 136     return ((mac[RCTL] & E1000_RCTL_VFE) != 0);
 137 }
 138
 139 static inline int
 140 e1000x_fcs_len(uint32_t *mac)
 141 {
 142     /* FCS aka Ethernet CRC-32. We don't get it from backends and can't
 143     * fill it in, just pad descriptor length by 4 bytes unless guest
 144     * told us to strip it off the packet. */
 145     return (mac[RCTL] & E1000_RCTL_SECRC) ? 0 : 4;
 146 }
 147
 148 static inline void
 149 e1000x_update_regs_on_link_down(uint32_t *mac, uint16_t *phy)
 150 {
 151     mac[STATUS] &= ~E1000_STATUS_LU;
 152     phy[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
 153     phy[PHY_STATUS] &= ~MII_SR_AUTONEG_COMPLETE;
 154     phy[PHY_LP_ABILITY] &= ~MII_LPAR_LPACK;
 155 }
 156
 157 static inline void
 158 e1000x_update_regs_on_link_up(uint32_t *mac, uint16_t *phy)
 159 {
 160     mac[STATUS] |= E1000_STATUS_LU;
 161     phy[PHY_STATUS] |= MII_SR_LINK_STATUS;
 162 }
 163
 164 void e1000x_update_rx_total_stats(uint32_t *mac,
 165                                   size_t data_size,
 166                                   size_t data_fcs_size);
 167
 168 void e1000x_core_prepare_eeprom(uint16_t       *eeprom,
 169                                 const uint16_t *templ,
 170                                 uint32_t        templ_size,
 171                                 uint16_t        dev_id,
 172                                 const uint8_t  *macaddr);
 173
 174 uint32_t e1000x_rxbufsize(uint32_t rctl);
 175
 176 bool e1000x_rx_ready(PCIDevice *d, uint32_t *mac);
 177
 178 bool e1000x_is_vlan_packet(const uint8_t *buf, uint16_t vet);
 179
 180 bool e1000x_rx_group_filter(uint32_t *mac, const uint8_t *buf);
 181
 182 bool e1000x_hw_rx_enabled(uint32_t *mac);
 183
 184 bool e1000x_is_oversized(uint32_t *mac, size_t size);
 185
 186 void e1000x_restart_autoneg(uint32_t *mac, uint16_t *phy, QEMUTimer *timer);
 187
 188 void e1000x_reset_mac_addr(NICState *nic, uint32_t *mac_regs,
 189                            uint8_t *mac_addr);
 190
 191 void e1000x_update_regs_on_autoneg_done(uint32_t *mac, uint16_t *phy);
 192
 193 void e1000x_increase_size_stats(uint32_t *mac, const int *size_regs, int size);
 194
 195 typedef struct e1000x_txd_props {
 196     unsigned char sum_needed;
 197     uint8_t ipcss;
 198     uint8_t ipcso;
 199     uint16_t ipcse;
 200     uint8_t tucss;
 201     uint8_t tucso;
 202     uint16_t tucse;
 203     uint32_t paylen;
 204     uint8_t hdr_len;
 205     uint16_t mss;
 206     int8_t ip;
 207     int8_t tcp;
 208     bool tse;
 209     bool cptse;
 210 } e1000x_txd_props;
 211
 212 void e1000x_read_tx_ctx_descr(struct e1000_context_desc *d,
 213                               e1000x_txd_props *props);