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1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */2/* QLogic qed NIC Driver3 * Copyright (c) 2015-2017 QLogic Corporation4 * Copyright (c) 2019-2020 Marvell International Ltd.5 */6 7#ifndef _QED_SRIOV_H8#define _QED_SRIOV_H9#include <linux/types.h>10#include "qed_vf.h"11 12#define QED_ETH_VF_NUM_MAC_FILTERS 113#define QED_ETH_VF_NUM_VLAN_FILTERS 214#define QED_VF_ARRAY_LENGTH (3)15 16#ifdef CONFIG_QED_SRIOV17#define IS_VF(cdev) ((cdev)->b_is_vf)18#define IS_PF(cdev) (!((cdev)->b_is_vf))19#define IS_PF_SRIOV(p_hwfn) (!!((p_hwfn)->cdev->p_iov_info))20#else21#define IS_VF(cdev) (0)22#define IS_PF(cdev) (1)23#define IS_PF_SRIOV(p_hwfn) (0)24#endif25#define IS_PF_SRIOV_ALLOC(p_hwfn) (!!((p_hwfn)->pf_iov_info))26 27#define QED_MAX_VF_CHAINS_PER_PF 1628 29#define QED_ETH_MAX_VF_NUM_VLAN_FILTERS \30 (MAX_NUM_VFS * QED_ETH_VF_NUM_VLAN_FILTERS)31 32enum qed_iov_vport_update_flag {33 QED_IOV_VP_UPDATE_ACTIVATE,34 QED_IOV_VP_UPDATE_VLAN_STRIP,35 QED_IOV_VP_UPDATE_TX_SWITCH,36 QED_IOV_VP_UPDATE_MCAST,37 QED_IOV_VP_UPDATE_ACCEPT_PARAM,38 QED_IOV_VP_UPDATE_RSS,39 QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN,40 QED_IOV_VP_UPDATE_SGE_TPA,41 QED_IOV_VP_UPDATE_MAX,42};43 44struct qed_public_vf_info {45 /* These copies will later be reflected in the bulletin board,46 * but this copy should be newer.47 */48 u8 forced_mac[ETH_ALEN];49 u16 forced_vlan;50 u8 mac[ETH_ALEN];51 52 /* IFLA_VF_LINK_STATE_<X> */53 int link_state;54 55 /* Currently configured Tx rate in MB/sec. 0 if unconfigured */56 int tx_rate;57 58 /* Trusted VFs can configure promiscuous mode.59 * Also store shadow promisc configuration if needed.60 */61 bool is_trusted_configured;62 bool is_trusted_request;63 u8 rx_accept_mode;64 u8 tx_accept_mode;65 bool accept_any_vlan;66};67 68struct qed_iov_vf_init_params {69 u16 rel_vf_id;70 71 /* Number of requested Queues; Currently, don't support different72 * number of Rx/Tx queues.73 */74 75 u16 num_queues;76 77 /* Allow the client to choose which qzones to use for Rx/Tx,78 * and which queue_base to use for Tx queues on a per-queue basis.79 * Notice values should be relative to the PF resources.80 */81 u16 req_rx_queue[QED_MAX_VF_CHAINS_PER_PF];82 u16 req_tx_queue[QED_MAX_VF_CHAINS_PER_PF];83};84 85/* This struct is part of qed_dev and contains data relevant to all hwfns;86 * Initialized only if SR-IOV cpabability is exposed in PCIe config space.87 */88struct qed_hw_sriov_info {89 int pos; /* capability position */90 int nres; /* number of resources */91 u32 cap; /* SR-IOV Capabilities */92 u16 ctrl; /* SR-IOV Control */93 u16 total_vfs; /* total VFs associated with the PF */94 u16 num_vfs; /* number of vfs that have been started */95 u16 initial_vfs; /* initial VFs associated with the PF */96 u16 nr_virtfn; /* number of VFs available */97 u16 offset; /* first VF Routing ID offset */98 u16 stride; /* following VF stride */99 u16 vf_device_id; /* VF device id */100 u32 pgsz; /* page size for BAR alignment */101 u8 link; /* Function Dependency Link */102 103 u32 first_vf_in_pf;104};105 106/* This mailbox is maintained per VF in its PF contains all information107 * required for sending / receiving a message.108 */109struct qed_iov_vf_mbx {110 union vfpf_tlvs *req_virt;111 dma_addr_t req_phys;112 union pfvf_tlvs *reply_virt;113 dma_addr_t reply_phys;114 115 /* Address in VF where a pending message is located */116 dma_addr_t pending_req;117 118 /* Message from VF awaits handling */119 bool b_pending_msg;120 121 u8 *offset;122 123 /* saved VF request header */124 struct vfpf_first_tlv first_tlv;125};126 127#define QED_IOV_LEGACY_QID_RX (0)128#define QED_IOV_LEGACY_QID_TX (1)129#define QED_IOV_QID_INVALID (0xFE)130 131struct qed_vf_queue_cid {132 bool b_is_tx;133 struct qed_queue_cid *p_cid;134};135 136/* Describes a qzone associated with the VF */137struct qed_vf_queue {138 u16 fw_rx_qid;139 u16 fw_tx_qid;140 141 struct qed_vf_queue_cid cids[MAX_QUEUES_PER_QZONE];142};143 144enum vf_state {145 VF_FREE = 0, /* VF ready to be acquired holds no resc */146 VF_ACQUIRED, /* VF, acquired, but not initialized */147 VF_ENABLED, /* VF, Enabled */148 VF_RESET, /* VF, FLR'd, pending cleanup */149 VF_STOPPED /* VF, Stopped */150};151 152struct qed_vf_vlan_shadow {153 bool used;154 u16 vid;155};156 157struct qed_vf_shadow_config {158 /* Shadow copy of all guest vlans */159 struct qed_vf_vlan_shadow vlans[QED_ETH_VF_NUM_VLAN_FILTERS + 1];160 161 /* Shadow copy of all configured MACs; Empty if forcing MACs */162 u8 macs[QED_ETH_VF_NUM_MAC_FILTERS][ETH_ALEN];163 u8 inner_vlan_removal;164};165 166/* PFs maintain an array of this structure, per VF */167struct qed_vf_info {168 struct qed_iov_vf_mbx vf_mbx;169 enum vf_state state;170 bool b_init;171 bool b_malicious;172 u8 to_disable;173 174 struct qed_bulletin bulletin;175 dma_addr_t vf_bulletin;176 177 /* PF saves a copy of the last VF acquire message */178 struct vfpf_acquire_tlv acquire;179 180 u32 concrete_fid;181 u16 opaque_fid;182 u16 mtu;183 184 u8 vport_id;185 u8 relative_vf_id;186 u8 abs_vf_id;187#define QED_VF_ABS_ID(p_hwfn, p_vf) (QED_PATH_ID(p_hwfn) ? \188 (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \189 (p_vf)->abs_vf_id)190 191 u8 vport_instance;192 u8 num_rxqs;193 u8 num_txqs;194 195 u16 rx_coal;196 u16 tx_coal;197 198 u8 num_sbs;199 200 u8 num_mac_filters;201 u8 num_vlan_filters;202 203 struct qed_vf_queue vf_queues[QED_MAX_VF_CHAINS_PER_PF];204 u16 igu_sbs[QED_MAX_VF_CHAINS_PER_PF];205 u8 num_active_rxqs;206 struct qed_public_vf_info p_vf_info;207 bool spoof_chk;208 bool req_spoofchk_val;209 210 /* Stores the configuration requested by VF */211 struct qed_vf_shadow_config shadow_config;212 213 /* A bitfield using bulletin's valid-map bits, used to indicate214 * which of the bulletin board features have been configured.215 */216 u64 configured_features;217#define QED_IOV_CONFIGURED_FEATURES_MASK ((1 << MAC_ADDR_FORCED) | \218 (1 << VLAN_ADDR_FORCED))219};220 221/* This structure is part of qed_hwfn and used only for PFs that have sriov222 * capability enabled.223 */224struct qed_pf_iov {225 struct qed_vf_info vfs_array[MAX_NUM_VFS];226 u64 pending_flr[QED_VF_ARRAY_LENGTH];227 228 /* Allocate message address continuosuly and split to each VF */229 void *mbx_msg_virt_addr;230 dma_addr_t mbx_msg_phys_addr;231 u32 mbx_msg_size;232 void *mbx_reply_virt_addr;233 dma_addr_t mbx_reply_phys_addr;234 u32 mbx_reply_size;235 void *p_bulletins;236 dma_addr_t bulletins_phys;237 u32 bulletins_size;238};239 240enum qed_iov_wq_flag {241 QED_IOV_WQ_MSG_FLAG,242 QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,243 QED_IOV_WQ_BULLETIN_UPDATE_FLAG,244 QED_IOV_WQ_STOP_WQ_FLAG,245 QED_IOV_WQ_FLR_FLAG,246 QED_IOV_WQ_TRUST_FLAG,247 QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG,248};249 250extern const struct qed_iov_hv_ops qed_iov_ops_pass;251 252#ifdef CONFIG_QED_SRIOV253/**254 * qed_iov_is_valid_vfid(): Check if given VF ID @vfid is valid255 * w.r.t. @b_enabled_only value256 * if b_enabled_only = true - only enabled257 * VF id is valid.258 * else any VF id less than max_vfs is valid.259 *260 * @p_hwfn: HW device data.261 * @rel_vf_id: Relative VF ID.262 * @b_enabled_only: consider only enabled VF.263 * @b_non_malicious: true iff we want to validate vf isn't malicious.264 *265 * Return: bool - true for valid VF ID266 */267bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,268 int rel_vf_id,269 bool b_enabled_only, bool b_non_malicious);270 271/**272 * qed_iov_get_next_active_vf(): Given a VF index, return index of273 * next [including that] active VF.274 *275 * @p_hwfn: HW device data.276 * @rel_vf_id: VF ID.277 *278 * Return: MAX_NUM_VFS in case no further active VFs, otherwise index.279 */280u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id);281 282void qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn,283 int vfid, u16 vxlan_port, u16 geneve_port);284 285/**286 * qed_iov_hw_info(): Read sriov related information and allocated resources287 * reads from configuration space, shmem, etc.288 *289 * @p_hwfn: HW device data.290 *291 * Return: Int.292 */293int qed_iov_hw_info(struct qed_hwfn *p_hwfn);294 295/**296 * qed_add_tlv(): place a given tlv on the tlv buffer at next offset297 *298 * @p_hwfn: HW device data.299 * @offset: offset.300 * @type: Type301 * @length: Length.302 *303 * Return: pointer to the newly placed tlv304 */305void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length);306 307/**308 * qed_dp_tlv_list(): list the types and lengths of the tlvs on the buffer309 *310 * @p_hwfn: HW device data.311 * @tlvs_list: Tlvs_list.312 *313 * Return: Void.314 */315void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list);316 317/**318 * qed_sriov_vfpf_malicious(): Handle malicious VF/PF.319 *320 * @p_hwfn: HW device data.321 * @p_data: Pointer to data.322 *323 * Return: Void.324 */325void qed_sriov_vfpf_malicious(struct qed_hwfn *p_hwfn,326 struct fw_err_data *p_data);327 328/**329 * qed_sriov_eqe_event(): Callback for SRIOV events.330 *331 * @p_hwfn: HW device data.332 * @opcode: Opcode.333 * @echo: Echo.334 * @data: data335 * @fw_return_code: FW return code.336 *337 * Return: Int.338 */339int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn, u8 opcode, __le16 echo,340 union event_ring_data *data, u8 fw_return_code);341 342/**343 * qed_iov_alloc(): allocate sriov related resources344 *345 * @p_hwfn: HW device data.346 *347 * Return: Int.348 */349int qed_iov_alloc(struct qed_hwfn *p_hwfn);350 351/**352 * qed_iov_setup(): setup sriov related resources353 *354 * @p_hwfn: HW device data.355 *356 * Return: Void.357 */358void qed_iov_setup(struct qed_hwfn *p_hwfn);359 360/**361 * qed_iov_free(): free sriov related resources362 *363 * @p_hwfn: HW device data.364 *365 * Return: Void.366 */367void qed_iov_free(struct qed_hwfn *p_hwfn);368 369/**370 * qed_iov_free_hw_info(): free sriov related memory that was371 * allocated during hw_prepare372 *373 * @cdev: Qed dev pointer.374 *375 * Return: Void.376 */377void qed_iov_free_hw_info(struct qed_dev *cdev);378 379/**380 * qed_iov_mark_vf_flr(): Mark structs of vfs that have been FLR-ed.381 *382 * @p_hwfn: HW device data.383 * @disabled_vfs: bitmask of all VFs on path that were FLRed384 *385 * Return: true iff one of the PF's vfs got FLRed. false otherwise.386 */387bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *disabled_vfs);388 389/**390 * qed_iov_search_list_tlvs(): Search extended TLVs in request/reply buffer.391 *392 * @p_hwfn: HW device data.393 * @p_tlvs_list: Pointer to tlvs list394 * @req_type: Type of TLV395 *396 * Return: pointer to tlv type if found, otherwise returns NULL.397 */398void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,399 void *p_tlvs_list, u16 req_type);400 401void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first);402int qed_iov_wq_start(struct qed_dev *cdev);403 404void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag);405void qed_vf_start_iov_wq(struct qed_dev *cdev);406int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled);407void qed_inform_vf_link_state(struct qed_hwfn *hwfn);408#else409static inline bool410qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,411 int rel_vf_id, bool b_enabled_only, bool b_non_malicious)412{413 return false;414}415 416static inline u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn,417 u16 rel_vf_id)418{419 return MAX_NUM_VFS;420}421 422static inline void423qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn, int vfid,424 u16 vxlan_port, u16 geneve_port)425{426}427 428static inline int qed_iov_hw_info(struct qed_hwfn *p_hwfn)429{430 return 0;431}432 433static inline int qed_iov_alloc(struct qed_hwfn *p_hwfn)434{435 return 0;436}437 438static inline void qed_iov_setup(struct qed_hwfn *p_hwfn)439{440}441 442static inline void qed_iov_free(struct qed_hwfn *p_hwfn)443{444}445 446static inline void qed_iov_free_hw_info(struct qed_dev *cdev)447{448}449 450static inline bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn,451 u32 *disabled_vfs)452{453 return false;454}455 456static inline void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first)457{458}459 460static inline int qed_iov_wq_start(struct qed_dev *cdev)461{462 return 0;463}464 465static inline void qed_schedule_iov(struct qed_hwfn *hwfn,466 enum qed_iov_wq_flag flag)467{468}469 470static inline void qed_vf_start_iov_wq(struct qed_dev *cdev)471{472}473 474static inline int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled)475{476 return 0;477}478 479static inline void qed_inform_vf_link_state(struct qed_hwfn *hwfn)480{481}482 483static inline void qed_sriov_vfpf_malicious(struct qed_hwfn *p_hwfn,484 struct fw_err_data *p_data)485{486}487 488static inline int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn, u8 opcode,489 __le16 echo, union event_ring_data *data,490 u8 fw_return_code)491{492 return 0;493}494#endif495 496#define qed_for_each_vf(_p_hwfn, _i) \497 for (_i = qed_iov_get_next_active_vf(_p_hwfn, 0); \498 _i < MAX_NUM_VFS; \499 _i = qed_iov_get_next_active_vf(_p_hwfn, _i + 1))500 501#endif502