hw/net/vmxnet3_defs.h

   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 "hw/pci/pci_device.h"
  23
  24 #define TYPE_VMXNET3 "vmxnet3"
  25 typedef struct VMXNET3State VMXNET3State;
  26 DECLARE_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 */
  33 typedef struct {
  34     hwaddr pa;
  35     uint32_t size;
  36     uint32_t cell_size;
  37     uint32_t next;
  38     uint8_t gen;
  39 } Vmxnet3Ring;
  40
  41 typedef 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
  50 typedef 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
  58 typedef struct {
  59     bool is_masked;
  60     bool is_pending;
  61     bool is_asserted;
  62 } Vmxnet3IntState;
  63
  64 struct 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