drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #ifndef _QLCNIC_83XX_SRIOV_H_
   9 #define _QLCNIC_83XX_SRIOV_H_
  10
  11 #include "qlcnic.h"
  12 #include <linux/types.h>
  13 #include <linux/pci.h>
  14
  15 extern const u32 qlcnic_83xx_reg_tbl[];
  16 extern const u32 qlcnic_83xx_ext_reg_tbl[];
  17
  18 struct qlcnic_bc_payload {
  19         u64 payload[126];
  20 };
  21
  22 struct qlcnic_bc_hdr {
  23 #if defined(__LITTLE_ENDIAN)
  24         u8      version;
  25         u8      msg_type:4;
  26         u8      rsvd1:3;
  27         u8      op_type:1;
  28         u8      num_cmds;
  29         u8      num_frags;
  30         u8      frag_num;
  31         u8      cmd_op;
  32         u16     seq_id;
  33         u64     rsvd3;
  34 #elif defined(__BIG_ENDIAN)
  35         u8      num_frags;
  36         u8      num_cmds;
  37         u8      op_type:1;
  38         u8      rsvd1:3;
  39         u8      msg_type:4;
  40         u8      version;
  41         u16     seq_id;
  42         u8      cmd_op;
  43         u8      frag_num;
  44         u64     rsvd3;
  45 #endif
  46 };
  47
  48 enum qlcnic_bc_commands {
  49         QLCNIC_BC_CMD_CHANNEL_INIT = 0x0,
  50         QLCNIC_BC_CMD_CHANNEL_TERM = 0x1,
  51 };
  52
  53 #define QLC_BC_CMD 1
  54
  55 struct qlcnic_trans_list {
  56         /* Lock for manipulating list */
  57         spinlock_t              lock;
  58         struct list_head        wait_list;
  59         int                     count;
  60 };
  61
  62 enum qlcnic_trans_state {
  63         QLC_INIT = 0,
  64         QLC_WAIT_FOR_CHANNEL_FREE,
  65         QLC_WAIT_FOR_RESP,
  66         QLC_ABORT,
  67         QLC_END,
  68 };
  69
  70 struct qlcnic_bc_trans {
  71         u8                              func_id;
  72         u8                              active;
  73         u8                              curr_rsp_frag;
  74         u8                              curr_req_frag;
  75         u16                             cmd_id;
  76         u16                             req_pay_size;
  77         u16                             rsp_pay_size;
  78         u32                             trans_id;
  79         enum qlcnic_trans_state         trans_state;
  80         struct list_head                list;
  81         struct qlcnic_bc_hdr            *req_hdr;
  82         struct qlcnic_bc_hdr            *rsp_hdr;
  83         struct qlcnic_bc_payload        *req_pay;
  84         struct qlcnic_bc_payload        *rsp_pay;
  85         struct completion               resp_cmpl;
  86         struct qlcnic_vf_info           *vf;
  87 };
  88
  89 enum qlcnic_vf_state {
  90         QLC_BC_VF_SEND = 0,
  91         QLC_BC_VF_RECV,
  92         QLC_BC_VF_CHANNEL,
  93         QLC_BC_VF_STATE,
  94 };
  95
  96 struct qlcnic_resources {
  97         u16 num_tx_mac_filters;
  98         u16 num_rx_ucast_mac_filters;
  99         u16 num_rx_mcast_mac_filters;
 100
 101         u16 num_txvlan_keys;
 102
 103         u16 num_rx_queues;
 104         u16 num_tx_queues;
 105
 106         u16 num_rx_buf_rings;
 107         u16 num_rx_status_rings;
 108
 109         u16 num_destip;
 110         u32 num_lro_flows_supported;
 111         u16 max_local_ipv6_addrs;
 112         u16 max_remote_ipv6_addrs;
 113 };
 114
 115 struct qlcnic_vport {
 116         u16                     handle;
 117         u8                      mac[6];
 118 };
 119
 120 struct qlcnic_vf_info {
 121         u8                              pci_func;
 122         u16                             rx_ctx_id;
 123         u16                             tx_ctx_id;
 124         unsigned long                   state;
 125         struct completion               ch_free_cmpl;
 126         struct work_struct              trans_work;
 127         /* It synchronizes commands sent from VF */
 128         struct mutex                    send_cmd_lock;
 129         struct qlcnic_bc_trans          *send_cmd;
 130         struct qlcnic_trans_list        rcv_act;
 131         struct qlcnic_trans_list        rcv_pend;
 132         struct qlcnic_adapter           *adapter;
 133         struct qlcnic_vport             *vp;
 134 };
 135
 136 struct qlcnic_back_channel {
 137         u16                     trans_counter;
 138         struct workqueue_struct *bc_trans_wq;
 139 };
 140
 141 struct qlcnic_sriov {
 142         u16                             vp_handle;
 143         u8                              num_vfs;
 144         struct qlcnic_resources         ff_max;
 145         struct qlcnic_back_channel      bc;
 146         struct qlcnic_vf_info           *vf_info;
 147 };
 148
 149 int qlcnic_sriov_init(struct qlcnic_adapter *, int);
 150 void qlcnic_sriov_cleanup(struct qlcnic_adapter *);
 151 void __qlcnic_sriov_cleanup(struct qlcnic_adapter *);
 152 void qlcnic_sriov_vf_register_map(struct qlcnic_hardware_context *);
 153 int qlcnic_sriov_vf_init(struct qlcnic_adapter *, int);
 154 void qlcnic_sriov_vf_set_ops(struct qlcnic_adapter *);
 155 int qlcnic_sriov_func_to_index(struct qlcnic_adapter *, u8);
 156 int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *, u8);
 157 void qlcnic_sriov_handle_bc_event(struct qlcnic_adapter *, u32);
 158 int qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter *, u8);
 159
 160 static inline bool qlcnic_sriov_enable_check(struct qlcnic_adapter *adapter)
 161 {
 162         return test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state) ? true : false;
 163 }
 164
 165 #ifdef CONFIG_QLCNIC_SRIOV
 166 void qlcnic_sriov_pf_process_bc_cmd(struct qlcnic_adapter *,
 167                                     struct qlcnic_bc_trans *,
 168                                     struct qlcnic_cmd_args *);
 169 void qlcnic_sriov_pf_disable(struct qlcnic_adapter *);
 170 void qlcnic_sriov_pf_cleanup(struct qlcnic_adapter *);
 171 int qlcnic_pci_sriov_configure(struct pci_dev *, int);
 172 void qlcnic_pf_set_interface_id_create_rx_ctx(struct qlcnic_adapter *, u32 *);
 173 void qlcnic_pf_set_interface_id_create_tx_ctx(struct qlcnic_adapter *, u32 *);
 174 void qlcnic_pf_set_interface_id_del_rx_ctx(struct qlcnic_adapter *, u32 *);
 175 void qlcnic_pf_set_interface_id_del_tx_ctx(struct qlcnic_adapter *, u32 *);
 176 void qlcnic_pf_set_interface_id_promisc(struct qlcnic_adapter *, u32 *);
 177 void qlcnic_pf_set_interface_id_ipaddr(struct qlcnic_adapter *, u32 *);
 178 void qlcnic_pf_set_interface_id_macaddr(struct qlcnic_adapter *, u32 *);
 179 #else
 180 static inline void qlcnic_sriov_pf_disable(struct qlcnic_adapter *adapter) {}
 181 static inline void qlcnic_sriov_pf_cleanup(struct qlcnic_adapter *adapter) {}
 182 static inline void
 183 qlcnic_pf_set_interface_id_create_rx_ctx(struct qlcnic_adapter *adapter,
 184                                          u32 *int_id) {}
 185 static inline void
 186 qlcnic_pf_set_interface_id_create_tx_ctx(struct qlcnic_adapter *adapter,
 187                                          u32 *int_id) {}
 188 static inline void
 189 qlcnic_pf_set_interface_id_del_rx_ctx(struct qlcnic_adapter *adapter,
 190                                       u32 *int_id) {}
 191 static inline void
 192 qlcnic_pf_set_interface_id_del_tx_ctx(struct qlcnic_adapter *adapter,
 193                                       u32 *int_id) {}
 194 static inline void
 195 qlcnic_pf_set_interface_id_ipaddr(struct qlcnic_adapter *adapter, u32 *int_id)
 196 {}
 197 static inline void
 198 qlcnic_pf_set_interface_id_macaddr(struct qlcnic_adapter *adapter, u32 *int_id)
 199 {}
 200 static inline void
 201 qlcnic_pf_set_interface_id_promisc(struct qlcnic_adapter *adapter, u32 *int_id)
 202 {}
 203 #endif
 204
 205 #endif