ceph/src/seastar/dpdk/drivers/net/qede/base/ecore_sriov.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (c) 2016 - 2018 Cavium Inc.
   3  * All rights reserved.
   4  * www.cavium.com
   5  */
   6
   7 #ifndef __ECORE_SRIOV_H__
   8 #define __ECORE_SRIOV_H__
   9
  10 #include "ecore_status.h"
  11 #include "ecore_vfpf_if.h"
  12 #include "ecore_iov_api.h"
  13 #include "ecore_hsi_common.h"
  14 #include "ecore_l2.h"
  15
  16 #define ECORE_ETH_MAX_VF_NUM_VLAN_FILTERS \
  17         (MAX_NUM_VFS_E4 * ECORE_ETH_VF_NUM_VLAN_FILTERS)
  18
  19 /* Represents a full message. Both the request filled by VF
  20  * and the response filled by the PF. The VF needs one copy
  21  * of this message, it fills the request part and sends it to
  22  * the PF. The PF will copy the response to the response part for
  23  * the VF to later read it. The PF needs to hold a message like this
  24  * per VF, the request that is copied to the PF is placed in the
  25  * request size, and the response is filled by the PF before sending
  26  * it to the VF.
  27  */
  28 struct ecore_vf_mbx_msg {
  29         union vfpf_tlvs req;
  30         union pfvf_tlvs resp;
  31 };
  32
  33 /* This mailbox is maintained per VF in its PF
  34  * contains all information required for sending / receiving
  35  * a message
  36  */
  37 struct ecore_iov_vf_mbx {
  38         union vfpf_tlvs         *req_virt;
  39         dma_addr_t              req_phys;
  40         union pfvf_tlvs         *reply_virt;
  41         dma_addr_t              reply_phys;
  42
  43         /* Address in VF where a pending message is located */
  44         dma_addr_t              pending_req;
  45
  46         /* Message from VF awaits handling */
  47         bool                    b_pending_msg;
  48
  49         u8 *offset;
  50
  51 #ifdef CONFIG_ECORE_SW_CHANNEL
  52         struct ecore_iov_sw_mbx sw_mbx;
  53 #endif
  54
  55         /* VF GPA address */
  56         u32                     vf_addr_lo;
  57         u32                     vf_addr_hi;
  58
  59         struct vfpf_first_tlv   first_tlv;      /* saved VF request header */
  60
  61         u8                      flags;
  62 #define VF_MSG_INPROCESS        0x1     /* failsafe - the FW should prevent
  63                                          * more then one pending msg
  64                                          */
  65 };
  66
  67 #define ECORE_IOV_LEGACY_QID_RX (0)
  68 #define ECORE_IOV_LEGACY_QID_TX (1)
  69 #define ECORE_IOV_QID_INVALID (0xFE)
  70
  71 struct ecore_vf_queue_cid {
  72         bool b_is_tx;
  73         struct ecore_queue_cid *p_cid;
  74 };
  75
  76 /* Describes a qzone associated with the VF */
  77 struct ecore_vf_queue {
  78         /* Input from upper-layer, mapping relateive queue to queue-zone */
  79         u16 fw_rx_qid;
  80         u16 fw_tx_qid;
  81
  82         struct ecore_vf_queue_cid cids[MAX_QUEUES_PER_QZONE];
  83 };
  84
  85 enum vf_state {
  86         VF_FREE         = 0,    /* VF ready to be acquired holds no resc */
  87         VF_ACQUIRED     = 1,    /* VF, acquired, but not initalized */
  88         VF_ENABLED      = 2,    /* VF, Enabled */
  89         VF_RESET        = 3,    /* VF, FLR'd, pending cleanup */
  90         VF_STOPPED      = 4     /* VF, Stopped */
  91 };
  92
  93 struct ecore_vf_vlan_shadow {
  94         bool used;
  95         u16 vid;
  96 };
  97
  98 struct ecore_vf_shadow_config {
  99         /* Shadow copy of all guest vlans */
 100         struct ecore_vf_vlan_shadow vlans[ECORE_ETH_VF_NUM_VLAN_FILTERS + 1];
 101
 102         /* Shadow copy of all configured MACs; Empty if forcing MACs */
 103         u8 macs[ECORE_ETH_VF_NUM_MAC_FILTERS][ETH_ALEN];
 104         u8 inner_vlan_removal;
 105 };
 106
 107 /* PFs maintain an array of this structure, per VF */
 108 struct ecore_vf_info {
 109         struct ecore_iov_vf_mbx vf_mbx;
 110         enum vf_state state;
 111         bool b_init;
 112         bool b_malicious;
 113         u8                      to_disable;
 114
 115         struct ecore_bulletin   bulletin;
 116         dma_addr_t              vf_bulletin;
 117
 118 #ifdef CONFIG_ECORE_SW_CHANNEL
 119         /* Determine whether PF communicate with VF using HW/SW channel */
 120         bool    b_hw_channel;
 121 #endif
 122
 123         /* PF saves a copy of the last VF acquire message */
 124         struct vfpf_acquire_tlv acquire;
 125
 126         u32                     concrete_fid;
 127         u16                     opaque_fid;
 128         u16                     mtu;
 129
 130         u8                      vport_id;
 131         u8                      rss_eng_id;
 132         u8                      relative_vf_id;
 133         u8                      abs_vf_id;
 134 #define ECORE_VF_ABS_ID(p_hwfn, p_vf)   (ECORE_PATH_ID(p_hwfn) ? \
 135                                          (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \
 136                                          (p_vf)->abs_vf_id)
 137
 138         u8                      vport_instance; /* Number of active vports */
 139         u8                      num_rxqs;
 140         u8                      num_txqs;
 141
 142         u16                     rx_coal;
 143         u16                     tx_coal;
 144
 145         u8                      num_sbs;
 146
 147         u8                      num_mac_filters;
 148         u8                      num_vlan_filters;
 149
 150         struct ecore_vf_queue   vf_queues[ECORE_MAX_VF_CHAINS_PER_PF];
 151         u16                     igu_sbs[ECORE_MAX_VF_CHAINS_PER_PF];
 152
 153         /* TODO - Only windows is using it - should be removed */
 154         u8 was_malicious;
 155         u8 num_active_rxqs;
 156         void *ctx;
 157         struct ecore_public_vf_info p_vf_info;
 158         bool spoof_chk;         /* Current configured on HW */
 159         bool req_spoofchk_val;  /* Requested value */
 160
 161         /* Stores the configuration requested by VF */
 162         struct ecore_vf_shadow_config shadow_config;
 163
 164         /* A bitfield using bulletin's valid-map bits, used to indicate
 165          * which of the bulletin board features have been configured.
 166          */
 167         u64 configured_features;
 168 #define ECORE_IOV_CONFIGURED_FEATURES_MASK      ((1 << MAC_ADDR_FORCED) | \
 169                                                  (1 << VLAN_ADDR_FORCED))
 170 };
 171
 172 /* This structure is part of ecore_hwfn and used only for PFs that have sriov
 173  * capability enabled.
 174  */
 175 struct ecore_pf_iov {
 176         struct ecore_vf_info    vfs_array[MAX_NUM_VFS_E4];
 177         u64                     pending_flr[ECORE_VF_ARRAY_LENGTH];
 178
 179 #ifndef REMOVE_DBG
 180         /* This doesn't serve anything functionally, but it makes windows
 181          * debugging of IOV related issues easier.
 182          */
 183         u64                     active_vfs[ECORE_VF_ARRAY_LENGTH];
 184 #endif
 185
 186         /* Allocate message address continuosuly and split to each VF */
 187         void                    *mbx_msg_virt_addr;
 188         dma_addr_t              mbx_msg_phys_addr;
 189         u32                     mbx_msg_size;
 190         void                    *mbx_reply_virt_addr;
 191         dma_addr_t              mbx_reply_phys_addr;
 192         u32                     mbx_reply_size;
 193         void                    *p_bulletins;
 194         dma_addr_t              bulletins_phys;
 195         u32                     bulletins_size;
 196 };
 197
 198 #ifdef CONFIG_ECORE_SRIOV
 199 /**
 200  * @brief Read sriov related information and allocated resources
 201  *  reads from configuraiton space, shmem, etc.
 202  *
 203  * @param p_hwfn
 204  *
 205  * @return enum _ecore_status_t
 206  */
 207 enum _ecore_status_t ecore_iov_hw_info(struct ecore_hwfn *p_hwfn);
 208
 209 /**
 210  * @brief ecore_add_tlv - place a given tlv on the tlv buffer at next offset
 211  *
 212  * @param offset
 213  * @param type
 214  * @param length
 215  *
 216  * @return pointer to the newly placed tlv
 217  */
 218 void *ecore_add_tlv(u8 **offset, u16 type, u16 length);
 219
 220 /**
 221  * @brief list the types and lengths of the tlvs on the buffer
 222  *
 223  * @param p_hwfn
 224  * @param tlvs_list
 225  */
 226 void ecore_dp_tlv_list(struct ecore_hwfn *p_hwfn,
 227                        void *tlvs_list);
 228
 229 /**
 230  * @brief ecore_iov_alloc - allocate sriov related resources
 231  *
 232  * @param p_hwfn
 233  *
 234  * @return enum _ecore_status_t
 235  */
 236 enum _ecore_status_t ecore_iov_alloc(struct ecore_hwfn *p_hwfn);
 237
 238 /**
 239  * @brief ecore_iov_setup - setup sriov related resources
 240  *
 241  * @param p_hwfn
 242  */
 243 void ecore_iov_setup(struct ecore_hwfn  *p_hwfn);
 244
 245 /**
 246  * @brief ecore_iov_free - free sriov related resources
 247  *
 248  * @param p_hwfn
 249  */
 250 void ecore_iov_free(struct ecore_hwfn *p_hwfn);
 251
 252 /**
 253  * @brief free sriov related memory that was allocated during hw_prepare
 254  *
 255  * @param p_dev
 256  */
 257 void ecore_iov_free_hw_info(struct ecore_dev *p_dev);
 258
 259 /**
 260  * @brief Mark structs of vfs that have been FLR-ed.
 261  *
 262  * @param p_hwfn
 263  * @param disabled_vfs - bitmask of all VFs on path that were FLRed
 264  *
 265  * @return true iff one of the PF's vfs got FLRed. false otherwise.
 266  */
 267 bool ecore_iov_mark_vf_flr(struct ecore_hwfn *p_hwfn,
 268                            u32 *disabled_vfs);
 269
 270 /**
 271  * @brief Search extended TLVs in request/reply buffer.
 272  *
 273  * @param p_hwfn
 274  * @param p_tlvs_list - Pointer to tlvs list
 275  * @param req_type - Type of TLV
 276  *
 277  * @return pointer to tlv type if found, otherwise returns NULL.
 278  */
 279 void *ecore_iov_search_list_tlvs(struct ecore_hwfn *p_hwfn,
 280                                  void *p_tlvs_list, u16 req_type);
 281
 282 /**
 283  * @brief ecore_iov_get_vf_info - return the database of a
 284  *        specific VF
 285  *
 286  * @param p_hwfn
 287  * @param relative_vf_id - relative id of the VF for which info
 288  *                       is requested
 289  * @param b_enabled_only - false iff want to access even if vf is disabled
 290  *
 291  * @return struct ecore_vf_info*
 292  */
 293 struct ecore_vf_info *ecore_iov_get_vf_info(struct ecore_hwfn *p_hwfn,
 294                                             u16 relative_vf_id,
 295                                             bool b_enabled_only);
 296 #endif
 297 #endif /* __ECORE_SRIOV_H__ */