/* * QEMU e1000(e) emulation - shared code * * Copyright (c) 2008 Qumranet * * Based on work done by: * Nir Peleg, Tutis Systems Ltd. for Qumranet Inc. * Copyright (c) 2007 Dan Aloni * Copyright (c) 2004 Antony T Curtis * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ #ifndef HW_NET_E1000X_COMMON_H #define HW_NET_E1000X_COMMON_H static inline void e1000x_inc_reg_if_not_full(uint32_t *mac, int index) { if (mac[index] != UINT32_MAX) { mac[index]++; } } static inline void e1000x_grow_8reg_if_not_full(uint32_t *mac, int index, int size) { uint64_t sum = mac[index] | (uint64_t)mac[index + 1] << 32; if (sum + size < sum) { sum = ~0ULL; } else { sum += size; } mac[index] = sum; mac[index + 1] = sum >> 32; } static inline int e1000x_vlan_enabled(uint32_t *mac) { return ((mac[CTRL] & E1000_CTRL_VME) != 0); } static inline int e1000x_is_vlan_txd(uint32_t txd_lower) { return ((txd_lower & E1000_TXD_CMD_VLE) != 0); } static inline int e1000x_vlan_rx_filter_enabled(uint32_t *mac) { return ((mac[RCTL] & E1000_RCTL_VFE) != 0); } static inline int e1000x_fcs_len(uint32_t *mac) { /* FCS aka Ethernet CRC-32. We don't get it from backends and can't * fill it in, just pad descriptor length by 4 bytes unless guest * told us to strip it off the packet. */ return (mac[RCTL] & E1000_RCTL_SECRC) ? 0 : 4; } static inline void e1000x_update_regs_on_link_down(uint32_t *mac, uint16_t *phy) { mac[STATUS] &= ~E1000_STATUS_LU; phy[MII_BMSR] &= ~MII_BMSR_LINK_ST; phy[MII_BMSR] &= ~MII_BMSR_AN_COMP; phy[MII_ANLPAR] &= ~MII_ANLPAR_ACK; } static inline void e1000x_update_regs_on_link_up(uint32_t *mac, uint16_t *phy) { mac[STATUS] |= E1000_STATUS_LU; phy[MII_BMSR] |= MII_BMSR_LINK_ST; } void e1000x_update_rx_total_stats(uint32_t *mac, eth_pkt_types_e pkt_type, size_t pkt_size, size_t pkt_fcs_size); void e1000x_core_prepare_eeprom(uint16_t *eeprom, const uint16_t *templ, uint32_t templ_size, uint16_t dev_id, const uint8_t *macaddr); uint32_t e1000x_rxbufsize(uint32_t rctl); bool e1000x_rx_ready(PCIDevice *d, uint32_t *mac); bool e1000x_is_vlan_packet(const void *buf, uint16_t vet); bool e1000x_rx_vlan_filter(uint32_t *mac, const struct vlan_header *vhdr); bool e1000x_rx_group_filter(uint32_t *mac, const struct eth_header *ehdr); bool e1000x_hw_rx_enabled(uint32_t *mac); bool e1000x_is_oversized(uint32_t *mac, size_t size); void e1000x_restart_autoneg(uint32_t *mac, uint16_t *phy, QEMUTimer *timer); void e1000x_reset_mac_addr(NICState *nic, uint32_t *mac_regs, uint8_t *mac_addr); void e1000x_update_regs_on_autoneg_done(uint32_t *mac, uint16_t *phy); void e1000x_increase_size_stats(uint32_t *mac, const int *size_regs, int size); typedef struct e1000x_txd_props { uint8_t ipcss; uint8_t ipcso; uint16_t ipcse; uint8_t tucss; uint8_t tucso; uint16_t tucse; uint32_t paylen; uint8_t hdr_len; uint16_t mss; int8_t ip; int8_t tcp; bool tse; } e1000x_txd_props; void e1000x_read_tx_ctx_descr(struct e1000_context_desc *d, e1000x_txd_props *props); void e1000x_timestamp(uint32_t *mac, int64_t timadj, size_t lo, size_t hi); void e1000x_set_timinca(uint32_t *mac, int64_t *timadj, uint32_t val); #endif