| /* QLogic qed NIC Driver |
| * Copyright (c) 2015 QLogic Corporation |
| * |
| * This software is available under the terms of the GNU General Public License |
| * (GPL) Version 2, available from the file COPYING in the main directory of |
| * this source tree. |
| */ |
| |
| #ifndef _QED_SRIOV_H |
| #define _QED_SRIOV_H |
| #include <linux/types.h> |
| #include "qed_vf.h" |
| #define QED_VF_ARRAY_LENGTH (3) |
| |
| #define IS_VF(cdev) ((cdev)->b_is_vf) |
| #define IS_PF(cdev) (!((cdev)->b_is_vf)) |
| #ifdef CONFIG_QED_SRIOV |
| #define IS_PF_SRIOV(p_hwfn) (!!((p_hwfn)->cdev->p_iov_info)) |
| #else |
| #define IS_PF_SRIOV(p_hwfn) (0) |
| #endif |
| #define IS_PF_SRIOV_ALLOC(p_hwfn) (!!((p_hwfn)->pf_iov_info)) |
| |
| #define QED_MAX_VF_CHAINS_PER_PF 16 |
| #define QED_ETH_VF_NUM_VLAN_FILTERS 2 |
| |
| #define QED_ETH_MAX_VF_NUM_VLAN_FILTERS \ |
| (MAX_NUM_VFS * QED_ETH_VF_NUM_VLAN_FILTERS) |
| |
| enum qed_iov_vport_update_flag { |
| QED_IOV_VP_UPDATE_ACTIVATE, |
| QED_IOV_VP_UPDATE_VLAN_STRIP, |
| QED_IOV_VP_UPDATE_TX_SWITCH, |
| QED_IOV_VP_UPDATE_MCAST, |
| QED_IOV_VP_UPDATE_ACCEPT_PARAM, |
| QED_IOV_VP_UPDATE_RSS, |
| QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN, |
| QED_IOV_VP_UPDATE_SGE_TPA, |
| QED_IOV_VP_UPDATE_MAX, |
| }; |
| |
| struct qed_public_vf_info { |
| /* These copies will later be reflected in the bulletin board, |
| * but this copy should be newer. |
| */ |
| u8 forced_mac[ETH_ALEN]; |
| u16 forced_vlan; |
| u8 mac[ETH_ALEN]; |
| |
| /* IFLA_VF_LINK_STATE_<X> */ |
| int link_state; |
| |
| /* Currently configured Tx rate in MB/sec. 0 if unconfigured */ |
| int tx_rate; |
| }; |
| |
| /* This struct is part of qed_dev and contains data relevant to all hwfns; |
| * Initialized only if SR-IOV cpabability is exposed in PCIe config space. |
| */ |
| struct qed_hw_sriov_info { |
| int pos; /* capability position */ |
| int nres; /* number of resources */ |
| u32 cap; /* SR-IOV Capabilities */ |
| u16 ctrl; /* SR-IOV Control */ |
| u16 total_vfs; /* total VFs associated with the PF */ |
| u16 num_vfs; /* number of vfs that have been started */ |
| u16 initial_vfs; /* initial VFs associated with the PF */ |
| u16 nr_virtfn; /* number of VFs available */ |
| u16 offset; /* first VF Routing ID offset */ |
| u16 stride; /* following VF stride */ |
| u16 vf_device_id; /* VF device id */ |
| u32 pgsz; /* page size for BAR alignment */ |
| u8 link; /* Function Dependency Link */ |
| |
| u32 first_vf_in_pf; |
| }; |
| |
| /* This mailbox is maintained per VF in its PF contains all information |
| * required for sending / receiving a message. |
| */ |
| struct qed_iov_vf_mbx { |
| union vfpf_tlvs *req_virt; |
| dma_addr_t req_phys; |
| union pfvf_tlvs *reply_virt; |
| dma_addr_t reply_phys; |
| |
| /* Address in VF where a pending message is located */ |
| dma_addr_t pending_req; |
| |
| u8 *offset; |
| |
| /* saved VF request header */ |
| struct vfpf_first_tlv first_tlv; |
| }; |
| |
| struct qed_vf_q_info { |
| u16 fw_rx_qid; |
| u16 fw_tx_qid; |
| u8 fw_cid; |
| u8 rxq_active; |
| u8 txq_active; |
| }; |
| |
| enum vf_state { |
| VF_FREE = 0, /* VF ready to be acquired holds no resc */ |
| VF_ACQUIRED, /* VF, acquired, but not initalized */ |
| VF_ENABLED, /* VF, Enabled */ |
| VF_RESET, /* VF, FLR'd, pending cleanup */ |
| VF_STOPPED /* VF, Stopped */ |
| }; |
| |
| struct qed_vf_vlan_shadow { |
| bool used; |
| u16 vid; |
| }; |
| |
| struct qed_vf_shadow_config { |
| /* Shadow copy of all guest vlans */ |
| struct qed_vf_vlan_shadow vlans[QED_ETH_VF_NUM_VLAN_FILTERS + 1]; |
| |
| u8 inner_vlan_removal; |
| }; |
| |
| /* PFs maintain an array of this structure, per VF */ |
| struct qed_vf_info { |
| struct qed_iov_vf_mbx vf_mbx; |
| enum vf_state state; |
| bool b_init; |
| u8 to_disable; |
| |
| struct qed_bulletin bulletin; |
| dma_addr_t vf_bulletin; |
| |
| u32 concrete_fid; |
| u16 opaque_fid; |
| u16 mtu; |
| |
| u8 vport_id; |
| u8 relative_vf_id; |
| u8 abs_vf_id; |
| #define QED_VF_ABS_ID(p_hwfn, p_vf) (QED_PATH_ID(p_hwfn) ? \ |
| (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \ |
| (p_vf)->abs_vf_id) |
| |
| u8 vport_instance; |
| u8 num_rxqs; |
| u8 num_txqs; |
| |
| u8 num_sbs; |
| |
| u8 num_mac_filters; |
| u8 num_vlan_filters; |
| struct qed_vf_q_info vf_queues[QED_MAX_VF_CHAINS_PER_PF]; |
| u16 igu_sbs[QED_MAX_VF_CHAINS_PER_PF]; |
| u8 num_active_rxqs; |
| struct qed_public_vf_info p_vf_info; |
| bool spoof_chk; |
| bool req_spoofchk_val; |
| |
| /* Stores the configuration requested by VF */ |
| struct qed_vf_shadow_config shadow_config; |
| |
| /* A bitfield using bulletin's valid-map bits, used to indicate |
| * which of the bulletin board features have been configured. |
| */ |
| u64 configured_features; |
| #define QED_IOV_CONFIGURED_FEATURES_MASK ((1 << MAC_ADDR_FORCED) | \ |
| (1 << VLAN_ADDR_FORCED)) |
| }; |
| |
| /* This structure is part of qed_hwfn and used only for PFs that have sriov |
| * capability enabled. |
| */ |
| struct qed_pf_iov { |
| struct qed_vf_info vfs_array[MAX_NUM_VFS]; |
| u64 pending_events[QED_VF_ARRAY_LENGTH]; |
| u64 pending_flr[QED_VF_ARRAY_LENGTH]; |
| |
| /* Allocate message address continuosuly and split to each VF */ |
| void *mbx_msg_virt_addr; |
| dma_addr_t mbx_msg_phys_addr; |
| u32 mbx_msg_size; |
| void *mbx_reply_virt_addr; |
| dma_addr_t mbx_reply_phys_addr; |
| u32 mbx_reply_size; |
| void *p_bulletins; |
| dma_addr_t bulletins_phys; |
| u32 bulletins_size; |
| }; |
| |
| enum qed_iov_wq_flag { |
| QED_IOV_WQ_MSG_FLAG, |
| QED_IOV_WQ_SET_UNICAST_FILTER_FLAG, |
| QED_IOV_WQ_BULLETIN_UPDATE_FLAG, |
| QED_IOV_WQ_STOP_WQ_FLAG, |
| QED_IOV_WQ_FLR_FLAG, |
| }; |
| |
| #ifdef CONFIG_QED_SRIOV |
| /** |
| * @brief - Given a VF index, return index of next [including that] active VF. |
| * |
| * @param p_hwfn |
| * @param rel_vf_id |
| * |
| * @return MAX_NUM_VFS in case no further active VFs, otherwise index. |
| */ |
| u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id); |
| |
| /** |
| * @brief Read sriov related information and allocated resources |
| * reads from configuraiton space, shmem, etc. |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| int qed_iov_hw_info(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_add_tlv - place a given tlv on the tlv buffer at next offset |
| * |
| * @param p_hwfn |
| * @param p_iov |
| * @param type |
| * @param length |
| * |
| * @return pointer to the newly placed tlv |
| */ |
| void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length); |
| |
| /** |
| * @brief list the types and lengths of the tlvs on the buffer |
| * |
| * @param p_hwfn |
| * @param tlvs_list |
| */ |
| void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list); |
| |
| /** |
| * @brief qed_iov_alloc - allocate sriov related resources |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| int qed_iov_alloc(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_iov_setup - setup sriov related resources |
| * |
| * @param p_hwfn |
| * @param p_ptt |
| */ |
| void qed_iov_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); |
| |
| /** |
| * @brief qed_iov_free - free sriov related resources |
| * |
| * @param p_hwfn |
| */ |
| void qed_iov_free(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief free sriov related memory that was allocated during hw_prepare |
| * |
| * @param cdev |
| */ |
| void qed_iov_free_hw_info(struct qed_dev *cdev); |
| |
| /** |
| * @brief qed_sriov_eqe_event - handle async sriov event arrived on eqe. |
| * |
| * @param p_hwfn |
| * @param opcode |
| * @param echo |
| * @param data |
| */ |
| int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn, |
| u8 opcode, __le16 echo, union event_ring_data *data); |
| |
| /** |
| * @brief Mark structs of vfs that have been FLR-ed. |
| * |
| * @param p_hwfn |
| * @param disabled_vfs - bitmask of all VFs on path that were FLRed |
| * |
| * @return 1 iff one of the PF's vfs got FLRed. 0 otherwise. |
| */ |
| int qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *disabled_vfs); |
| |
| /** |
| * @brief Search extended TLVs in request/reply buffer. |
| * |
| * @param p_hwfn |
| * @param p_tlvs_list - Pointer to tlvs list |
| * @param req_type - Type of TLV |
| * |
| * @return pointer to tlv type if found, otherwise returns NULL. |
| */ |
| void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn, |
| void *p_tlvs_list, u16 req_type); |
| |
| void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first); |
| int qed_iov_wq_start(struct qed_dev *cdev); |
| |
| void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag); |
| void qed_vf_start_iov_wq(struct qed_dev *cdev); |
| int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled); |
| void qed_inform_vf_link_state(struct qed_hwfn *hwfn); |
| #else |
| static inline u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, |
| u16 rel_vf_id) |
| { |
| return MAX_NUM_VFS; |
| } |
| |
| static inline int qed_iov_hw_info(struct qed_hwfn *p_hwfn) |
| { |
| return 0; |
| } |
| |
| static inline int qed_iov_alloc(struct qed_hwfn *p_hwfn) |
| { |
| return 0; |
| } |
| |
| static inline void qed_iov_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) |
| { |
| } |
| |
| static inline void qed_iov_free(struct qed_hwfn *p_hwfn) |
| { |
| } |
| |
| static inline void qed_iov_free_hw_info(struct qed_dev *cdev) |
| { |
| } |
| |
| static inline int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn, |
| u8 opcode, |
| __le16 echo, union event_ring_data *data) |
| { |
| return -EINVAL; |
| } |
| |
| static inline int qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, |
| u32 *disabled_vfs) |
| { |
| return 0; |
| } |
| |
| static inline void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first) |
| { |
| } |
| |
| static inline int qed_iov_wq_start(struct qed_dev *cdev) |
| { |
| return 0; |
| } |
| |
| static inline void qed_schedule_iov(struct qed_hwfn *hwfn, |
| enum qed_iov_wq_flag flag) |
| { |
| } |
| |
| static inline void qed_vf_start_iov_wq(struct qed_dev *cdev) |
| { |
| } |
| |
| static inline int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled) |
| { |
| return 0; |
| } |
| |
| static inline void qed_inform_vf_link_state(struct qed_hwfn *hwfn) |
| { |
| } |
| #endif |
| |
| #define qed_for_each_vf(_p_hwfn, _i) \ |
| for (_i = qed_iov_get_next_active_vf(_p_hwfn, 0); \ |
| _i < MAX_NUM_VFS; \ |
| _i = qed_iov_get_next_active_vf(_p_hwfn, _i + 1)) |
| |
| #endif |