@samitouri / QOSamiQemu
Code Commits Issues Pulls Sessions CI/CD
master
master
h 148 lines 4.13 KB
Raw
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 2.1 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 #ifndef HW_NET_E1000X_COMMON_H
26 #define HW_NET_E1000X_COMMON_H
27
28 static inline void
29 e1000x_inc_reg_if_not_full(uint32_t *mac, int index)
30 {
31 if (mac[index] != UINT32_MAX) {
32 mac[index]++;
33 }
34 }
35
36 static inline void
37 e1000x_grow_8reg_if_not_full(uint32_t *mac, int index, int size)
38 {
39 uint64_t sum = mac[index] | (uint64_t)mac[index + 1] << 32;
40
41 if (sum + size < sum) {
42 sum = ~0ULL;
43 } else {
44 sum += size;
45 }
46 mac[index] = sum;
47 mac[index + 1] = sum >> 32;
48 }
49
50 static inline int
51 e1000x_vlan_enabled(uint32_t *mac)
52 {
53 return ((mac[CTRL] & E1000_CTRL_VME) != 0);
54 }
55
56 static inline int
57 e1000x_is_vlan_txd(uint32_t txd_lower)
58 {
59 return ((txd_lower & E1000_TXD_CMD_VLE) != 0);
60 }
61
62 static inline int
63 e1000x_vlan_rx_filter_enabled(uint32_t *mac)
64 {
65 return ((mac[RCTL] & E1000_RCTL_VFE) != 0);
66 }
67
68 static inline int
69 e1000x_fcs_len(uint32_t *mac)
70 {
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;
75 }
76
77 static inline void
78 e1000x_update_regs_on_link_down(uint32_t *mac, uint16_t *phy)
79 {
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;
84 }
85
86 static inline void
87 e1000x_update_regs_on_link_up(uint32_t *mac, uint16_t *phy)
88 {
89 mac[STATUS] |= E1000_STATUS_LU;
90 phy[MII_BMSR] |= MII_BMSR_LINK_ST;
91 }
92
93 void e1000x_update_rx_total_stats(uint32_t *mac,
94 eth_pkt_types_e pkt_type,
95 size_t pkt_size,
96 size_t pkt_fcs_size);
97
98 void e1000x_core_prepare_eeprom(uint16_t *eeprom,
99 const uint16_t *templ,
100 uint32_t templ_size,
101 uint16_t dev_id,
102 const uint8_t *macaddr);
103
104 uint32_t e1000x_rxbufsize(uint32_t rctl);
105
106 bool e1000x_rx_ready(PCIDevice *d, uint32_t *mac);
107
108 bool e1000x_is_vlan_packet(const void *buf, uint16_t vet);
109
110 bool e1000x_rx_vlan_filter(uint32_t *mac, const struct vlan_header *vhdr);
111
112 bool e1000x_rx_group_filter(uint32_t *mac, const struct eth_header *ehdr);
113
114 bool e1000x_hw_rx_enabled(uint32_t *mac);
115
116 bool e1000x_is_oversized(uint32_t *mac, size_t size);
117
118 void e1000x_restart_autoneg(uint32_t *mac, uint16_t *phy, QEMUTimer *timer);
119
120 void e1000x_reset_mac_addr(NICState *nic, uint32_t *mac_regs,
121 uint8_t *mac_addr);
122
123 void e1000x_update_regs_on_autoneg_done(uint32_t *mac, uint16_t *phy);
124
125 void e1000x_increase_size_stats(uint32_t *mac, const int *size_regs, int size);
126
127 typedef struct e1000x_txd_props {
128 uint8_t ipcss;
129 uint8_t ipcso;
130 uint16_t ipcse;
131 uint8_t tucss;
132 uint8_t tucso;
133 uint16_t tucse;
134 uint32_t paylen;
135 uint8_t hdr_len;
136 uint16_t mss;
137 int8_t ip;
138 int8_t tcp;
139 bool tse;
140 } e1000x_txd_props;
141
142 void e1000x_read_tx_ctx_descr(struct e1000_context_desc *d,
143 e1000x_txd_props *props);
144
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);
147
148 #endif