2 * QEMU e1000(e) emulation - shared code
4 * Copyright (c) 2008 Qumranet
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
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 2.1 of the License, or (at your option) any later version.
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.
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/>.
25 #ifndef HW_NET_E1000X_COMMON_H
26 #define HW_NET_E1000X_COMMON_H
29 e1000x_inc_reg_if_not_full(uint32_t *mac
, int index
)
31 if (mac
[index
] != UINT32_MAX
) {
37 e1000x_grow_8reg_if_not_full(uint32_t *mac
, int index
, int size
)
39 uint64_t sum
= mac
[index
] | (uint64_t)mac
[index
+ 1] << 32;
41 if (sum
+ size
< sum
) {
47 mac
[index
+ 1] = sum
>> 32;
51 e1000x_vlan_enabled(uint32_t *mac
)
53 return ((mac
[CTRL
] & E1000_CTRL_VME
) != 0);
57 e1000x_is_vlan_txd(uint32_t txd_lower
)
59 return ((txd_lower
& E1000_TXD_CMD_VLE
) != 0);
63 e1000x_vlan_rx_filter_enabled(uint32_t *mac
)
65 return ((mac
[RCTL
] & E1000_RCTL_VFE
) != 0);
69 e1000x_fcs_len(uint32_t *mac
)
71 /* FCS aka Ethernet CRC-32. We don't get it from backends and can't
72 * fill it in, just pad descriptor length by 4 bytes unless guest
73 * told us to strip it off the packet. */
74 return (mac
[RCTL
] & E1000_RCTL_SECRC
) ? 0 : 4;
78 e1000x_update_regs_on_link_down(uint32_t *mac
, uint16_t *phy
)
80 mac
[STATUS
] &= ~E1000_STATUS_LU
;
81 phy
[MII_BMSR
] &= ~MII_BMSR_LINK_ST
;
82 phy
[MII_BMSR
] &= ~MII_BMSR_AN_COMP
;
83 phy
[MII_ANLPAR
] &= ~MII_ANLPAR_ACK
;
87 e1000x_update_regs_on_link_up(uint32_t *mac
, uint16_t *phy
)
89 mac
[STATUS
] |= E1000_STATUS_LU
;
90 phy
[MII_BMSR
] |= MII_BMSR_LINK_ST
;
93 void e1000x_update_rx_total_stats(uint32_t *mac
,
94 eth_pkt_types_e pkt_type
,
98 void e1000x_core_prepare_eeprom(uint16_t *eeprom
,
99 const uint16_t *templ
,
102 const uint8_t *macaddr
);
104 uint32_t e1000x_rxbufsize(uint32_t rctl
);
106 bool e1000x_rx_ready(PCIDevice
*d
, uint32_t *mac
);
108 bool e1000x_is_vlan_packet(const void *buf
, uint16_t vet
);
110 bool e1000x_rx_vlan_filter(uint32_t *mac
, const struct vlan_header
*vhdr
);
112 bool e1000x_rx_group_filter(uint32_t *mac
, const struct eth_header
*ehdr
);
114 bool e1000x_hw_rx_enabled(uint32_t *mac
);
116 bool e1000x_is_oversized(uint32_t *mac
, size_t size
);
118 void e1000x_restart_autoneg(uint32_t *mac
, uint16_t *phy
, QEMUTimer
*timer
);
120 void e1000x_reset_mac_addr(NICState
*nic
, uint32_t *mac_regs
,
123 void e1000x_update_regs_on_autoneg_done(uint32_t *mac
, uint16_t *phy
);
125 void e1000x_increase_size_stats(uint32_t *mac
, const int *size_regs
, int size
);
127 typedef struct e1000x_txd_props
{
142 void e1000x_read_tx_ctx_descr(struct e1000_context_desc
*d
,
143 e1000x_txd_props
*props
);
145 void e1000x_timestamp(uint32_t *mac
, int64_t timadj
, size_t lo
, size_t hi
);
146 void e1000x_set_timinca(uint32_t *mac
, int64_t *timadj
, uint32_t val
);