drivers/net/ethernet/qlogic/qed/qed

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This source file includes following definitions.
qed_iov_is_valid_vfid
qed_iov_get_next_active_vf
qed_iov_bulletin_set_udp_ports
qed_iov_hw_info
qed_iov_alloc
qed_iov_setup
qed_iov_free
qed_iov_free_hw_info
qed_iov_mark_vf_flr
qed_iov_wq_stop
qed_iov_wq_start
qed_schedule_iov
qed_vf_start_iov_wq
qed_sriov_disable
qed_inform_vf_link_state
   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2017  QLogic Corporation
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and /or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32 
  33 #ifndef _QED_SRIOV_H
  34 #define _QED_SRIOV_H
  35 #include <linux/types.h>
  36 #include "qed_vf.h"
  37 
  38 #define QED_ETH_VF_NUM_MAC_FILTERS 1
  39 #define QED_ETH_VF_NUM_VLAN_FILTERS 2
  40 #define QED_VF_ARRAY_LENGTH (3)
  41 
  42 #ifdef CONFIG_QED_SRIOV
  43 #define IS_VF(cdev)             ((cdev)->b_is_vf)
  44 #define IS_PF(cdev)             (!((cdev)->b_is_vf))
  45 #define IS_PF_SRIOV(p_hwfn)     (!!((p_hwfn)->cdev->p_iov_info))
  46 #else
  47 #define IS_VF(cdev)             (0)
  48 #define IS_PF(cdev)             (1)
  49 #define IS_PF_SRIOV(p_hwfn)     (0)
  50 #endif
  51 #define IS_PF_SRIOV_ALLOC(p_hwfn)       (!!((p_hwfn)->pf_iov_info))
  52 
  53 #define QED_MAX_VF_CHAINS_PER_PF 16
  54 
  55 #define QED_ETH_MAX_VF_NUM_VLAN_FILTERS \
  56         (MAX_NUM_VFS * QED_ETH_VF_NUM_VLAN_FILTERS)
  57 
  58 enum qed_iov_vport_update_flag {
  59         QED_IOV_VP_UPDATE_ACTIVATE,
  60         QED_IOV_VP_UPDATE_VLAN_STRIP,
  61         QED_IOV_VP_UPDATE_TX_SWITCH,
  62         QED_IOV_VP_UPDATE_MCAST,
  63         QED_IOV_VP_UPDATE_ACCEPT_PARAM,
  64         QED_IOV_VP_UPDATE_RSS,
  65         QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN,
  66         QED_IOV_VP_UPDATE_SGE_TPA,
  67         QED_IOV_VP_UPDATE_MAX,
  68 };
  69 
  70 struct qed_public_vf_info {
  71         /* These copies will later be reflected in the bulletin board,
  72          * but this copy should be newer.
  73          */
  74         u8 forced_mac[ETH_ALEN];
  75         u16 forced_vlan;
  76         u8 mac[ETH_ALEN];
  77 
  78         /* IFLA_VF_LINK_STATE_<X> */
  79         int link_state;
  80 
  81         /* Currently configured Tx rate in MB/sec. 0 if unconfigured */
  82         int tx_rate;
  83 
  84         /* Trusted VFs can configure promiscuous mode.
  85          * Also store shadow promisc configuration if needed.
  86          */
  87         bool is_trusted_configured;
  88         bool is_trusted_request;
  89         u8 rx_accept_mode;
  90         u8 tx_accept_mode;
  91 };
  92 
  93 struct qed_iov_vf_init_params {
  94         u16 rel_vf_id;
  95 
  96         /* Number of requested Queues; Currently, don't support different
  97          * number of Rx/Tx queues.
  98          */
  99 
 100         u16 num_queues;
 101 
 102         /* Allow the client to choose which qzones to use for Rx/Tx,
 103          * and which queue_base to use for Tx queues on a per-queue basis.
 104          * Notice values should be relative to the PF resources.
 105          */
 106         u16 req_rx_queue[QED_MAX_VF_CHAINS_PER_PF];
 107         u16 req_tx_queue[QED_MAX_VF_CHAINS_PER_PF];
 108 };
 109 
 110 /* This struct is part of qed_dev and contains data relevant to all hwfns;
 111  * Initialized only if SR-IOV cpabability is exposed in PCIe config space.
 112  */
 113 struct qed_hw_sriov_info {
 114         int pos;                /* capability position */
 115         int nres;               /* number of resources */
 116         u32 cap;                /* SR-IOV Capabilities */
 117         u16 ctrl;               /* SR-IOV Control */
 118         u16 total_vfs;          /* total VFs associated with the PF */
 119         u16 num_vfs;            /* number of vfs that have been started */
 120         u16 initial_vfs;        /* initial VFs associated with the PF */
 121         u16 nr_virtfn;          /* number of VFs available */
 122         u16 offset;             /* first VF Routing ID offset */
 123         u16 stride;             /* following VF stride */
 124         u16 vf_device_id;       /* VF device id */
 125         u32 pgsz;               /* page size for BAR alignment */
 126         u8 link;                /* Function Dependency Link */
 127 
 128         u32 first_vf_in_pf;
 129 };
 130 
 131 /* This mailbox is maintained per VF in its PF contains all information
 132  * required for sending / receiving a message.
 133  */
 134 struct qed_iov_vf_mbx {
 135         union vfpf_tlvs *req_virt;
 136         dma_addr_t req_phys;
 137         union pfvf_tlvs *reply_virt;
 138         dma_addr_t reply_phys;
 139 
 140         /* Address in VF where a pending message is located */
 141         dma_addr_t pending_req;
 142 
 143         /* Message from VF awaits handling */
 144         bool b_pending_msg;
 145 
 146         u8 *offset;
 147 
 148         /* saved VF request header */
 149         struct vfpf_first_tlv first_tlv;
 150 };
 151 
 152 #define QED_IOV_LEGACY_QID_RX (0)
 153 #define QED_IOV_LEGACY_QID_TX (1)
 154 #define QED_IOV_QID_INVALID (0xFE)
 155 
 156 struct qed_vf_queue_cid {
 157         bool b_is_tx;
 158         struct qed_queue_cid *p_cid;
 159 };
 160 
 161 /* Describes a qzone associated with the VF */
 162 struct qed_vf_queue {
 163         u16 fw_rx_qid;
 164         u16 fw_tx_qid;
 165 
 166         struct qed_vf_queue_cid cids[MAX_QUEUES_PER_QZONE];
 167 };
 168 
 169 enum vf_state {
 170         VF_FREE = 0,            /* VF ready to be acquired holds no resc */
 171         VF_ACQUIRED,            /* VF, acquired, but not initalized */
 172         VF_ENABLED,             /* VF, Enabled */
 173         VF_RESET,               /* VF, FLR'd, pending cleanup */
 174         VF_STOPPED              /* VF, Stopped */
 175 };
 176 
 177 struct qed_vf_vlan_shadow {
 178         bool used;
 179         u16 vid;
 180 };
 181 
 182 struct qed_vf_shadow_config {
 183         /* Shadow copy of all guest vlans */
 184         struct qed_vf_vlan_shadow vlans[QED_ETH_VF_NUM_VLAN_FILTERS + 1];
 185 
 186         /* Shadow copy of all configured MACs; Empty if forcing MACs */
 187         u8 macs[QED_ETH_VF_NUM_MAC_FILTERS][ETH_ALEN];
 188         u8 inner_vlan_removal;
 189 };
 190 
 191 /* PFs maintain an array of this structure, per VF */
 192 struct qed_vf_info {
 193         struct qed_iov_vf_mbx vf_mbx;
 194         enum vf_state state;
 195         bool b_init;
 196         bool b_malicious;
 197         u8 to_disable;
 198 
 199         struct qed_bulletin bulletin;
 200         dma_addr_t vf_bulletin;
 201 
 202         /* PF saves a copy of the last VF acquire message */
 203         struct vfpf_acquire_tlv acquire;
 204 
 205         u32 concrete_fid;
 206         u16 opaque_fid;
 207         u16 mtu;
 208 
 209         u8 vport_id;
 210         u8 relative_vf_id;
 211         u8 abs_vf_id;
 212 #define QED_VF_ABS_ID(p_hwfn, p_vf)     (QED_PATH_ID(p_hwfn) ?                \
 213                                          (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \
 214                                          (p_vf)->abs_vf_id)
 215 
 216         u8 vport_instance;
 217         u8 num_rxqs;
 218         u8 num_txqs;
 219 
 220         u16 rx_coal;
 221         u16 tx_coal;
 222 
 223         u8 num_sbs;
 224 
 225         u8 num_mac_filters;
 226         u8 num_vlan_filters;
 227 
 228         struct qed_vf_queue vf_queues[QED_MAX_VF_CHAINS_PER_PF];
 229         u16 igu_sbs[QED_MAX_VF_CHAINS_PER_PF];
 230         u8 num_active_rxqs;
 231         struct qed_public_vf_info p_vf_info;
 232         bool spoof_chk;
 233         bool req_spoofchk_val;
 234 
 235         /* Stores the configuration requested by VF */
 236         struct qed_vf_shadow_config shadow_config;
 237 
 238         /* A bitfield using bulletin's valid-map bits, used to indicate
 239          * which of the bulletin board features have been configured.
 240          */
 241         u64 configured_features;
 242 #define QED_IOV_CONFIGURED_FEATURES_MASK        ((1 << MAC_ADDR_FORCED) | \
 243                                                  (1 << VLAN_ADDR_FORCED))
 244 };
 245 
 246 /* This structure is part of qed_hwfn and used only for PFs that have sriov
 247  * capability enabled.
 248  */
 249 struct qed_pf_iov {
 250         struct qed_vf_info vfs_array[MAX_NUM_VFS];
 251         u64 pending_flr[QED_VF_ARRAY_LENGTH];
 252 
 253         /* Allocate message address continuosuly and split to each VF */
 254         void *mbx_msg_virt_addr;
 255         dma_addr_t mbx_msg_phys_addr;
 256         u32 mbx_msg_size;
 257         void *mbx_reply_virt_addr;
 258         dma_addr_t mbx_reply_phys_addr;
 259         u32 mbx_reply_size;
 260         void *p_bulletins;
 261         dma_addr_t bulletins_phys;
 262         u32 bulletins_size;
 263 };
 264 
 265 enum qed_iov_wq_flag {
 266         QED_IOV_WQ_MSG_FLAG,
 267         QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,
 268         QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
 269         QED_IOV_WQ_STOP_WQ_FLAG,
 270         QED_IOV_WQ_FLR_FLAG,
 271         QED_IOV_WQ_TRUST_FLAG,
 272         QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG,
 273 };
 274 
 275 #ifdef CONFIG_QED_SRIOV
 276 /**
 277  * @brief Check if given VF ID @vfid is valid
 278  *        w.r.t. @b_enabled_only value
 279  *        if b_enabled_only = true - only enabled VF id is valid
 280  *        else any VF id less than max_vfs is valid
 281  *
 282  * @param p_hwfn
 283  * @param rel_vf_id - Relative VF ID
 284  * @param b_enabled_only - consider only enabled VF
 285  * @param b_non_malicious - true iff we want to validate vf isn't malicious.
 286  *
 287  * @return bool - true for valid VF ID
 288  */
 289 bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
 290                            int rel_vf_id,
 291                            bool b_enabled_only, bool b_non_malicious);
 292 
 293 /**
 294  * @brief - Given a VF index, return index of next [including that] active VF.
 295  *
 296  * @param p_hwfn
 297  * @param rel_vf_id
 298  *
 299  * @return MAX_NUM_VFS in case no further active VFs, otherwise index.
 300  */
 301 u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id);
 302 
 303 void qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn,
 304                                     int vfid, u16 vxlan_port, u16 geneve_port);
 305 
 306 /**
 307  * @brief Read sriov related information and allocated resources
 308  *  reads from configuraiton space, shmem, etc.
 309  *
 310  * @param p_hwfn
 311  *
 312  * @return int
 313  */
 314 int qed_iov_hw_info(struct qed_hwfn *p_hwfn);
 315 
 316 /**
 317  * @brief qed_add_tlv - place a given tlv on the tlv buffer at next offset
 318  *
 319  * @param p_hwfn
 320  * @param p_iov
 321  * @param type
 322  * @param length
 323  *
 324  * @return pointer to the newly placed tlv
 325  */
 326 void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length);
 327 
 328 /**
 329  * @brief list the types and lengths of the tlvs on the buffer
 330  *
 331  * @param p_hwfn
 332  * @param tlvs_list
 333  */
 334 void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list);
 335 
 336 /**
 337  * @brief qed_iov_alloc - allocate sriov related resources
 338  *
 339  * @param p_hwfn
 340  *
 341  * @return int
 342  */
 343 int qed_iov_alloc(struct qed_hwfn *p_hwfn);
 344 
 345 /**
 346  * @brief qed_iov_setup - setup sriov related resources
 347  *
 348  * @param p_hwfn
 349  */
 350 void qed_iov_setup(struct qed_hwfn *p_hwfn);
 351 
 352 /**
 353  * @brief qed_iov_free - free sriov related resources
 354  *
 355  * @param p_hwfn
 356  */
 357 void qed_iov_free(struct qed_hwfn *p_hwfn);
 358 
 359 /**
 360  * @brief free sriov related memory that was allocated during hw_prepare
 361  *
 362  * @param cdev
 363  */
 364 void qed_iov_free_hw_info(struct qed_dev *cdev);
 365 
 366 /**
 367  * @brief Mark structs of vfs that have been FLR-ed.
 368  *
 369  * @param p_hwfn
 370  * @param disabled_vfs - bitmask of all VFs on path that were FLRed
 371  *
 372  * @return true iff one of the PF's vfs got FLRed. false otherwise.
 373  */
 374 bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *disabled_vfs);
 375 
 376 /**
 377  * @brief Search extended TLVs in request/reply buffer.
 378  *
 379  * @param p_hwfn
 380  * @param p_tlvs_list - Pointer to tlvs list
 381  * @param req_type - Type of TLV
 382  *
 383  * @return pointer to tlv type if found, otherwise returns NULL.
 384  */
 385 void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
 386                                void *p_tlvs_list, u16 req_type);
 387 
 388 void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first);
 389 int qed_iov_wq_start(struct qed_dev *cdev);
 390 
 391 void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag);
 392 void qed_vf_start_iov_wq(struct qed_dev *cdev);
 393 int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled);
 394 void qed_inform_vf_link_state(struct qed_hwfn *hwfn);
 395 #else
 396 static inline bool
 397 qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
 398                       int rel_vf_id, bool b_enabled_only, bool b_non_malicious)
 399 {
 400         return false;
 401 }
 402 
 403 static inline u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn,
 404                                              u16 rel_vf_id)
 405 {
 406         return MAX_NUM_VFS;
 407 }
 408 
 409 static inline void
 410 qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn, int vfid,
 411                                u16 vxlan_port, u16 geneve_port)
 412 {
 413 }
 414 
 415 static inline int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
 416 {
 417         return 0;
 418 }
 419 
 420 static inline int qed_iov_alloc(struct qed_hwfn *p_hwfn)
 421 {
 422         return 0;
 423 }
 424 
 425 static inline void qed_iov_setup(struct qed_hwfn *p_hwfn)
 426 {
 427 }
 428 
 429 static inline void qed_iov_free(struct qed_hwfn *p_hwfn)
 430 {
 431 }
 432 
 433 static inline void qed_iov_free_hw_info(struct qed_dev *cdev)
 434 {
 435 }
 436 
 437 static inline bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn,
 438                                        u32 *disabled_vfs)
 439 {
 440         return false;
 441 }
 442 
 443 static inline void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first)
 444 {
 445 }
 446 
 447 static inline int qed_iov_wq_start(struct qed_dev *cdev)
 448 {
 449         return 0;
 450 }
 451 
 452 static inline void qed_schedule_iov(struct qed_hwfn *hwfn,
 453                                     enum qed_iov_wq_flag flag)
 454 {
 455 }
 456 
 457 static inline void qed_vf_start_iov_wq(struct qed_dev *cdev)
 458 {
 459 }
 460 
 461 static inline int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled)
 462 {
 463         return 0;
 464 }
 465 
 466 static inline void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
 467 {
 468 }
 469 #endif
 470 
 471 #define qed_for_each_vf(_p_hwfn, _i)                      \
 472         for (_i = qed_iov_get_next_active_vf(_p_hwfn, 0); \
 473              _i < MAX_NUM_VFS;                            \
 474              _i = qed_iov_get_next_active_vf(_p_hwfn, _i + 1))
 475 
 476 #endif
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/ethernet/qlogic/qed/qed_sriov.h

INCLUDED FROM

DEFINITIONS
