LXR qemu/hw/net/vmxnet3

   1/*
   2 * QEMU VMWARE VMXNET3 paravirtual NIC
   3 *
   4 * Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com)
   5 *
   6 * Developed by Daynix Computing LTD (http://www.daynix.com)
   7 *
   8 * Authors:
   9 * Dmitry Fleytman <dmitry@daynix.com>
  10 * Tamir Shomer <tamirs@daynix.com>
  11 * Yan Vugenfirer <yan@daynix.com>
  12 *
  13 * This work is licensed under the terms of the GNU GPL, version 2.
  14 * See the COPYING file in the top-level directory.
  15 */
  16
  17#ifndef HW_NET_VMXNET3_DEFS_H
  18#define HW_NET_VMXNET3_DEFS_H
  19
  20#include "net/net.h"
  21#include "hw/net/vmxnet3.h"
  22#include "qom/object.h"
  23
  24#define TYPE_VMXNET3 "vmxnet3"
  25typedef struct VMXNET3State VMXNET3State;
  26DECLARE_INSTANCE_CHECKER(VMXNET3State, VMXNET3,
  27                         TYPE_VMXNET3)
  28
  29/* Device state and helper functions */
  30#define VMXNET3_RX_RINGS_PER_QUEUE (2)
  31
  32/* Cyclic ring abstraction */
  33typedef struct {
  34    hwaddr pa;
  35    uint32_t size;
  36    uint32_t cell_size;
  37    uint32_t next;
  38    uint8_t gen;
  39} Vmxnet3Ring;
  40
  41typedef struct {
  42    Vmxnet3Ring tx_ring;
  43    Vmxnet3Ring comp_ring;
  44
  45    uint8_t intr_idx;
  46    hwaddr tx_stats_pa;
  47    struct UPT1_TxStats txq_stats;
  48} Vmxnet3TxqDescr;
  49
  50typedef struct {
  51    Vmxnet3Ring rx_ring[VMXNET3_RX_RINGS_PER_QUEUE];
  52    Vmxnet3Ring comp_ring;
  53    uint8_t intr_idx;
  54    hwaddr rx_stats_pa;
  55    struct UPT1_RxStats rxq_stats;
  56} Vmxnet3RxqDescr;
  57
  58typedef struct {
  59    bool is_masked;
  60    bool is_pending;
  61    bool is_asserted;
  62} Vmxnet3IntState;
  63
  64struct VMXNET3State {
  65        PCIDevice parent_obj;
  66        NICState *nic;
  67        NICConf conf;
  68        MemoryRegion bar0;
  69        MemoryRegion bar1;
  70        MemoryRegion msix_bar;
  71
  72        Vmxnet3RxqDescr rxq_descr[VMXNET3_DEVICE_MAX_RX_QUEUES];
  73        Vmxnet3TxqDescr txq_descr[VMXNET3_DEVICE_MAX_TX_QUEUES];
  74
  75        /* Whether MSI-X support was installed successfully */
  76        bool msix_used;
  77        hwaddr drv_shmem;
  78        hwaddr temp_shared_guest_driver_memory;
  79
  80        uint8_t txq_num;
  81
  82        /* This boolean tells whether RX packet being indicated has to */
  83        /* be split into head and body chunks from different RX rings  */
  84        bool rx_packets_compound;
  85
  86        bool rx_vlan_stripping;
  87        bool lro_supported;
  88
  89        uint8_t rxq_num;
  90
  91        /* Network MTU */
  92        uint32_t mtu;
  93
  94        /* Maximum number of fragments for indicated TX packets */
  95        uint32_t max_tx_frags;
  96
  97        /* Maximum number of fragments for indicated RX packets */
  98        uint16_t max_rx_frags;
  99
 100        /* Index for events interrupt */
 101        uint8_t event_int_idx;
 102
 103        /* Whether automatic interrupts masking enabled */
 104        bool auto_int_masking;
 105
 106        bool peer_has_vhdr;
 107
 108        /* TX packets to QEMU interface */
 109        struct NetTxPkt *tx_pkt;
 110        uint32_t offload_mode;
 111        uint32_t cso_or_gso_size;
 112        uint16_t tci;
 113        bool needs_vlan;
 114
 115        struct NetRxPkt *rx_pkt;
 116
 117        bool tx_sop;
 118        bool skip_current_tx_pkt;
 119
 120        uint32_t device_active;
 121        uint32_t last_command;
 122
 123        uint32_t link_status_and_speed;
 124
 125        Vmxnet3IntState interrupt_states[VMXNET3_MAX_INTRS];
 126
 127        uint32_t temp_mac;   /* To store the low part first */
 128
 129        MACAddr perm_mac;
 130        uint32_t vlan_table[VMXNET3_VFT_SIZE];
 131        uint32_t rx_mode;
 132        MACAddr *mcast_list;
 133        uint32_t mcast_list_len;
 134        uint32_t mcast_list_buff_size; /* needed for live migration. */
 135
 136        /* Compatibility flags for migration */
 137        uint32_t compat_flags;
 138};
 139
 140#endif
 141