drivers/net/qede/base/ecore_sriov.h

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #ifndef __ECORE_SRIOV_H__
  10 #define __ECORE_SRIOV_H__
  11
  12 #include "ecore_status.h"
  13 #include "ecore_vfpf_if.h"
  14 #include "ecore_iov_api.h"
  15 #include "ecore_hsi_common.h"
  16
  17 #define ECORE_ETH_VF_NUM_VLAN_FILTERS 2
  18
  19 #define ECORE_ETH_MAX_VF_NUM_VLAN_FILTERS \
  20         (MAX_NUM_VFS * ECORE_ETH_VF_NUM_VLAN_FILTERS)
  21
  22 /* Represents a full message. Both the request filled by VF
  23  * and the response filled by the PF. The VF needs one copy
  24  * of this message, it fills the request part and sends it to
  25  * the PF. The PF will copy the response to the response part for
  26  * the VF to later read it. The PF needs to hold a message like this
  27  * per VF, the request that is copied to the PF is placed in the
  28  * request size, and the response is filled by the PF before sending
  29  * it to the VF.
  30  */
  31 struct ecore_vf_mbx_msg {
  32         union vfpf_tlvs req;
  33         union pfvf_tlvs resp;
  34 };
  35
  36 /* This data is held in the ecore_hwfn structure for VFs only. */
  37 struct ecore_vf_iov {
  38         union vfpf_tlvs *vf2pf_request;
  39         dma_addr_t vf2pf_request_phys;
  40         union pfvf_tlvs *pf2vf_reply;
  41         dma_addr_t pf2vf_reply_phys;
  42
  43         /* Should be taken whenever the mailbox buffers are accessed */
  44         osal_mutex_t mutex;
  45         u8 *offset;
  46
  47         /* Bulletin Board */
  48         struct ecore_bulletin bulletin;
  49         struct ecore_bulletin_content bulletin_shadow;
  50
  51         /* we set aside a copy of the acquire response */
  52         struct pfvf_acquire_resp_tlv acquire_resp;
  53 };
  54
  55 /* This mailbox is maintained per VF in its PF
  56  * contains all information required for sending / receiving
  57  * a message
  58  */
  59 struct ecore_iov_vf_mbx {
  60         union vfpf_tlvs         *req_virt;
  61         dma_addr_t              req_phys;
  62         union pfvf_tlvs         *reply_virt;
  63         dma_addr_t              reply_phys;
  64
  65         /* Address in VF where a pending message is located */
  66         dma_addr_t              pending_req;
  67
  68         u8 *offset;
  69
  70 #ifdef CONFIG_ECORE_SW_CHANNEL
  71         struct ecore_iov_sw_mbx sw_mbx;
  72 #endif
  73
  74         /* VF GPA address */
  75         u32                     vf_addr_lo;
  76         u32                     vf_addr_hi;
  77
  78         struct vfpf_first_tlv   first_tlv;      /* saved VF request header */
  79
  80         u8                      flags;
  81 #define VF_MSG_INPROCESS        0x1     /* failsafe - the FW should prevent
  82                                          * more then one pending msg
  83                                          */
  84 };
  85
  86 struct ecore_vf_q_info {
  87         u16 fw_rx_qid;
  88         u16 fw_tx_qid;
  89         u8 fw_cid;
  90         u8 rxq_active;
  91         u8 txq_active;
  92 };
  93
  94 enum int_mod {
  95         VPORT_INT_MOD_UNDEFINED = 0,
  96         VPORT_INT_MOD_ADAPTIVE = 1,
  97         VPORT_INT_MOD_OFF = 2,
  98         VPORT_INT_MOD_LOW = 100,
  99         VPORT_INT_MOD_MEDIUM = 200,
 100         VPORT_INT_MOD_HIGH = 300
 101 };
 102
 103 enum vf_state {
 104         VF_FREE         = 0,    /* VF ready to be acquired holds no resc */
 105         VF_ACQUIRED     = 1,    /* VF, acquired, but not initalized */
 106         VF_ENABLED      = 2,    /* VF, Enabled */
 107         VF_RESET        = 3,    /* VF, FLR'd, pending cleanup */
 108         VF_STOPPED      = 4     /* VF, Stopped */
 109 };
 110
 111 struct ecore_vf_vlan_shadow {
 112         bool used;
 113         u16 vid;
 114 };
 115
 116 struct ecore_vf_shadow_config {
 117         /* Shadow copy of all guest vlans */
 118         struct ecore_vf_vlan_shadow vlans[ECORE_ETH_VF_NUM_VLAN_FILTERS + 1];
 119
 120         u8 inner_vlan_removal;
 121 };
 122
 123 /* PFs maintain an array of this structure, per VF */
 124 struct ecore_vf_info {
 125         struct ecore_iov_vf_mbx vf_mbx;
 126         enum vf_state state;
 127         u8                      to_disable;
 128
 129         struct ecore_bulletin   bulletin;
 130         dma_addr_t              vf_bulletin;
 131
 132         u32                     concrete_fid;
 133         u16                     opaque_fid;
 134         u16                     mtu;
 135
 136         u8                      vport_id;
 137         u8                      relative_vf_id;
 138         u8                      abs_vf_id;
 139 #define ECORE_VF_ABS_ID(p_hwfn, p_vf)   (ECORE_PATH_ID(p_hwfn) ? \
 140                                          (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \
 141                                          (p_vf)->abs_vf_id)
 142
 143         u8                      vport_instance; /* Number of active vports */
 144         u8                      num_rxqs;
 145         u8                      num_txqs;
 146
 147         u8                      num_sbs;
 148
 149         u8                      num_mac_filters;
 150         u8                      num_vlan_filters;
 151         u8 num_mc_filters;
 152
 153         struct ecore_vf_q_info  vf_queues[ECORE_MAX_VF_CHAINS_PER_PF];
 154         u16                     igu_sbs[ECORE_MAX_VF_CHAINS_PER_PF];
 155
 156         /* TODO - Only windows is using it - should be removed */
 157         u8 was_malicious;
 158         u8 num_active_rxqs;
 159         void *ctx;
 160         struct ecore_public_vf_info p_vf_info;
 161         bool spoof_chk;         /* Current configured on HW */
 162         bool req_spoofchk_val;  /* Requested value */
 163
 164         /* Stores the configuration requested by VF */
 165         struct ecore_vf_shadow_config shadow_config;
 166
 167         /* A bitfield using bulletin's valid-map bits, used to indicate
 168          * which of the bulletin board features have been configured.
 169          */
 170         u64 configured_features;
 171 #define ECORE_IOV_CONFIGURED_FEATURES_MASK      ((1 << MAC_ADDR_FORCED) | \
 172                                                  (1 << VLAN_ADDR_FORCED))
 173 };
 174
 175 /* This structure is part of ecore_hwfn and used only for PFs that have sriov
 176  * capability enabled.
 177  */
 178 struct ecore_pf_iov {
 179         struct ecore_vf_info    vfs_array[MAX_NUM_VFS];
 180         u64                     pending_events[ECORE_VF_ARRAY_LENGTH];
 181         u64                     pending_flr[ECORE_VF_ARRAY_LENGTH];
 182         u16                     base_vport_id;
 183
 184         /* Allocate message address continuosuly and split to each VF */
 185         void                    *mbx_msg_virt_addr;
 186         dma_addr_t              mbx_msg_phys_addr;
 187         u32                     mbx_msg_size;
 188         void                    *mbx_reply_virt_addr;
 189         dma_addr_t              mbx_reply_phys_addr;
 190         u32                     mbx_reply_size;
 191         void                    *p_bulletins;
 192         dma_addr_t              bulletins_phys;
 193         u32                     bulletins_size;
 194 };
 195
 196 #ifdef CONFIG_ECORE_SRIOV
 197 /**
 198  * @brief Read sriov related information and allocated resources
 199  *  reads from configuraiton space, shmem, and allocates the VF
 200  *  database in the PF.
 201  *
 202  * @param p_hwfn
 203  * @param p_ptt
 204  *
 205  * @return enum _ecore_status_t
 206  */
 207 enum _ecore_status_t ecore_iov_hw_info(struct ecore_hwfn *p_hwfn,
 208                                        struct ecore_ptt *p_ptt);
 209
 210 /**
 211  * @brief ecore_add_tlv - place a given tlv on the tlv buffer at next offset
 212  *
 213  * @param p_hwfn
 214  * @param p_iov
 215  * @param type
 216  * @param length
 217  *
 218  * @return pointer to the newly placed tlv
 219  */
 220 void *ecore_add_tlv(struct ecore_hwfn   *p_hwfn,
 221                     u8 **offset, u16 type, u16 length);
 222
 223 /**
 224  * @brief list the types and lengths of the tlvs on the buffer
 225  *
 226  * @param p_hwfn
 227  * @param tlvs_list
 228  */
 229 void ecore_dp_tlv_list(struct ecore_hwfn *p_hwfn, void *tlvs_list);
 230
 231 /**
 232  * @brief ecore_iov_alloc - allocate sriov related resources
 233  *
 234  * @param p_hwfn
 235  *
 236  * @return enum _ecore_status_t
 237  */
 238 enum _ecore_status_t ecore_iov_alloc(struct ecore_hwfn *p_hwfn);
 239
 240 /**
 241  * @brief ecore_iov_setup - setup sriov related resources
 242  *
 243  * @param p_hwfn
 244  * @param p_ptt
 245  */
 246 void ecore_iov_setup(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt);
 247
 248 /**
 249  * @brief ecore_iov_free - free sriov related resources
 250  *
 251  * @param p_hwfn
 252  */
 253 void ecore_iov_free(struct ecore_hwfn *p_hwfn);
 254
 255 /**
 256  * @brief ecore_sriov_eqe_event - handle async sriov event arrived on eqe.
 257  *
 258  * @param p_hwfn
 259  * @param opcode
 260  * @param echo
 261  * @param data
 262  */
 263 enum _ecore_status_t ecore_sriov_eqe_event(struct ecore_hwfn     *p_hwfn,
 264                                            u8                    opcode,
 265                                            __le16                echo,
 266                                            union event_ring_data *data);
 267
 268 /**
 269  * @brief calculate CRC for bulletin board validation
 270  *
 271  * @param basic crc seed
 272  * @param ptr to beginning of buffer
 273  * @length in bytes of buffer
 274  *
 275  * @return calculated crc over buffer [with respect to seed].
 276  */
 277 u32 ecore_crc32(u32 crc, u8 *ptr, u32 length);
 278
 279 /**
 280  * @brief Mark structs of vfs that have been FLR-ed.
 281  *
 282  * @param p_hwfn
 283  * @param disabled_vfs - bitmask of all VFs on path that were FLRed
 284  *
 285  * @return 1 iff one of the PF's vfs got FLRed. 0 otherwise.
 286  */
 287 int ecore_iov_mark_vf_flr(struct ecore_hwfn *p_hwfn, u32 *disabled_vfs);
 288
 289 /**
 290  * @brief Search extended TLVs in request/reply buffer.
 291  *
 292  * @param p_hwfn
 293  * @param p_tlvs_list - Pointer to tlvs list
 294  * @param req_type - Type of TLV
 295  *
 296  * @return pointer to tlv type if found, otherwise returns NULL.
 297  */
 298 void *ecore_iov_search_list_tlvs(struct ecore_hwfn *p_hwfn,
 299                                  void *p_tlvs_list, u16 req_type);
 300
 301 /**
 302  * @brief ecore_iov_get_vf_info - return the database of a
 303  *        specific VF
 304  *
 305  * @param p_hwfn
 306  * @param relative_vf_id - relative id of the VF for which info
 307  *                       is requested
 308  * @param b_enabled_only - false iff want to access even if vf is disabled
 309  *
 310  * @return struct ecore_vf_info*
 311  */
 312 struct ecore_vf_info *ecore_iov_get_vf_info(struct ecore_hwfn *p_hwfn,
 313                                             u16 relative_vf_id,
 314                                             bool b_enabled_only);
 315 #else
 316 static OSAL_INLINE enum _ecore_status_t ecore_iov_hw_info(struct ecore_hwfn
 317                                                           *p_hwfn,
 318                                                           struct ecore_ptt
 319                                                           *p_ptt)
 320 {
 321         return ECORE_SUCCESS;
 322 }
 323
 324 static OSAL_INLINE void *ecore_add_tlv(struct ecore_hwfn *p_hwfn, u8 **offset,
 325                                        u16 type, u16 length)
 326 {
 327         return OSAL_NULL;
 328 }
 329
 330 static OSAL_INLINE void ecore_dp_tlv_list(struct ecore_hwfn *p_hwfn,
 331                                           void *tlvs_list)
 332 {
 333 }
 334
 335 static OSAL_INLINE enum _ecore_status_t ecore_iov_alloc(struct ecore_hwfn
 336                                                         *p_hwfn)
 337 {
 338         return ECORE_SUCCESS;
 339 }
 340
 341 static OSAL_INLINE void ecore_iov_setup(struct ecore_hwfn *p_hwfn,
 342                                         struct ecore_ptt *p_ptt)
 343 {
 344 }
 345
 346 static OSAL_INLINE void ecore_iov_free(struct ecore_hwfn *p_hwfn)
 347 {
 348 }
 349
 350 static OSAL_INLINE enum _ecore_status_t ecore_sriov_eqe_event(struct ecore_hwfn
 351                                                               *p_hwfn,
 352                                                               u8 opcode,
 353                                                               __le16 echo,
 354                                                               union
 355                                                               event_ring_data
 356                                                               * data)
 357 {
 358         return ECORE_INVAL;
 359 }
 360
 361 static OSAL_INLINE u32 ecore_crc32(u32 crc, u8 *ptr, u32 length)
 362 {
 363         return 0;
 364 }
 365
 366 static OSAL_INLINE int ecore_iov_mark_vf_flr(struct ecore_hwfn *p_hwfn,
 367                                              u32 *disabled_vfs)
 368 {
 369         return 0;
 370 }
 371
 372 static OSAL_INLINE void *ecore_iov_search_list_tlvs(struct ecore_hwfn *p_hwfn,
 373                                                     void *p_tlvs_list,
 374                                                     u16 req_type)
 375 {
 376         return OSAL_NULL;
 377 }
 378
 379 static OSAL_INLINE struct ecore_vf_info *ecore_iov_get_vf_info(struct ecore_hwfn
 380                                                                *p_hwfn,
 381                                                                u16
 382                                                                relative_vf_id,
 383                                                                bool
 384                                                                b_enabled_only)
 385 {
 386         return OSAL_NULL;
 387 }
 388
 389 #endif
 390 #endif /* __ECORE_SRIOV_H__ */