/* * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed 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, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef MLX5_DRIVER_H #define MLX5_DRIVER_H #include #include #include #include #include #include #include #include #include #include #include enum { MLX5_BOARD_ID_LEN = 64, MLX5_MAX_NAME_LEN = 16, }; enum { /* one minute for the sake of bringup. Generally, commands must always * complete and we may need to increase this timeout value */ MLX5_CMD_TIMEOUT_MSEC = 7200 * 1000, MLX5_CMD_WQ_MAX_NAME = 32, }; enum { CMD_OWNER_SW = 0x0, CMD_OWNER_HW = 0x1, CMD_STATUS_SUCCESS = 0, }; enum mlx5_sqp_t { MLX5_SQP_SMI = 0, MLX5_SQP_GSI = 1, MLX5_SQP_IEEE_1588 = 2, MLX5_SQP_SNIFFER = 3, MLX5_SQP_SYNC_UMR = 4, }; enum { MLX5_MAX_PORTS = 2, }; enum { MLX5_EQ_VEC_PAGES = 0, MLX5_EQ_VEC_CMD = 1, MLX5_EQ_VEC_ASYNC = 2, MLX5_EQ_VEC_COMP_BASE, }; enum { MLX5_MAX_EQ_NAME = 32 }; enum { MLX5_ATOMIC_MODE_IB_COMP = 1 << 16, MLX5_ATOMIC_MODE_CX = 2 << 16, MLX5_ATOMIC_MODE_8B = 3 << 16, MLX5_ATOMIC_MODE_16B = 4 << 16, MLX5_ATOMIC_MODE_32B = 5 << 16, MLX5_ATOMIC_MODE_64B = 6 << 16, MLX5_ATOMIC_MODE_128B = 7 << 16, MLX5_ATOMIC_MODE_256B = 8 << 16, }; enum { MLX5_REG_PCAP = 0x5001, MLX5_REG_PMTU = 0x5003, MLX5_REG_PTYS = 0x5004, MLX5_REG_PAOS = 0x5006, MLX5_REG_PMAOS = 0x5012, MLX5_REG_PUDE = 0x5009, MLX5_REG_PMPE = 0x5010, MLX5_REG_PELC = 0x500e, MLX5_REG_PMLP = 0, /* TBD */ MLX5_REG_NODE_DESC = 0x6001, MLX5_REG_HOST_ENDIANNESS = 0x7004, }; enum dbg_rsc_type { MLX5_DBG_RSC_QP, MLX5_DBG_RSC_EQ, MLX5_DBG_RSC_CQ, }; struct mlx5_field_desc { struct dentry *dent; int i; }; struct mlx5_rsc_debug { struct mlx5_core_dev *dev; void *object; enum dbg_rsc_type type; struct dentry *root; struct mlx5_field_desc fields[0]; }; enum mlx5_dev_event { MLX5_DEV_EVENT_SYS_ERROR, MLX5_DEV_EVENT_PORT_UP, MLX5_DEV_EVENT_PORT_DOWN, MLX5_DEV_EVENT_PORT_INITIALIZED, MLX5_DEV_EVENT_LID_CHANGE, MLX5_DEV_EVENT_PKEY_CHANGE, MLX5_DEV_EVENT_GUID_CHANGE, MLX5_DEV_EVENT_CLIENT_REREG, }; struct mlx5_uuar_info { struct mlx5_uar *uars; int num_uars; int num_low_latency_uuars; unsigned long *bitmap; unsigned int *count; struct mlx5_bf *bfs; /* * protect uuar allocation data structs */ struct mutex lock; u32 ver; }; struct mlx5_bf { void __iomem *reg; void __iomem *regreg; int buf_size; struct mlx5_uar *uar; unsigned long offset; int need_lock; /* protect blue flame buffer selection when needed */ spinlock_t lock; /* serialize 64 bit writes when done as two 32 bit accesses */ spinlock_t lock32; int uuarn; }; struct mlx5_cmd_first { __be32 data[4]; }; struct mlx5_cmd_msg { struct list_head list; struct cache_ent *cache; u32 len; struct mlx5_cmd_first first; struct mlx5_cmd_mailbox *next; }; struct mlx5_cmd_debug { struct dentry *dbg_root; struct dentry *dbg_in; struct dentry *dbg_out; struct dentry *dbg_outlen; struct dentry *dbg_status; struct dentry *dbg_run; void *in_msg; void *out_msg; u8 status; u16 inlen; u16 outlen; }; struct cache_ent { /* protect block chain allocations */ spinlock_t lock; struct list_head head; }; struct cmd_msg_cache { struct cache_ent large; struct cache_ent med; }; struct mlx5_cmd_stats { u64 sum; u64 n; struct dentry *root; struct dentry *avg; struct dentry *count; /* protect command average calculations */ spinlock_t lock; }; struct mlx5_cmd { void *cmd_buf; dma_addr_t dma; u16 cmdif_rev; u8 log_sz; u8 log_stride; int max_reg_cmds; int events; u32 __iomem *vector; /* protect command queue allocations */ spinlock_t alloc_lock; /* protect token allocations */ spinlock_t token_lock; u8 token; unsigned long bitmask; char wq_name[MLX5_CMD_WQ_MAX_NAME]; struct workqueue_struct *wq; struct semaphore sem; struct semaphore pages_sem; int mode; struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS]; struct pci_pool *pool; struct mlx5_cmd_debug dbg; struct cmd_msg_cache cache; int checksum_disabled; struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX]; }; struct mlx5_port_caps { int gid_table_len; int pkey_table_len; }; struct mlx5_general_caps { u8 log_max_eq; u8 log_max_cq; u8 log_max_qp; u8 log_max_mkey; u8 log_max_pd; u8 log_max_srq; u8 log_max_strq; u8 log_max_mrw_sz; u8 log_max_bsf_list_size; u8 log_max_klm_list_size; u32 max_cqes; int max_wqes; u32 max_eqes; u32 max_indirection; int max_sq_desc_sz; int max_rq_desc_sz; int max_dc_sq_desc_sz; u64 flags; u16 stat_rate_support; int log_max_msg; int num_ports; u8 log_max_ra_res_qp; u8 log_max_ra_req_qp; int max_srq_wqes; int bf_reg_size; int bf_regs_per_page; struct mlx5_port_caps port[MLX5_MAX_PORTS]; u8 ext_port_cap[MLX5_MAX_PORTS]; int max_vf; u32 reserved_lkey; u8 local_ca_ack_delay; u8 log_max_mcg; u32 max_qp_mcg; int min_page_sz; int pd_cap; u32 max_qp_counters; u32 pkey_table_size; u8 log_max_ra_req_dc; u8 log_max_ra_res_dc; u32 uar_sz; u8 min_log_pg_sz; u8 log_max_xrcd; u16 log_uar_page_sz; }; struct mlx5_caps { struct mlx5_general_caps gen; }; struct mlx5_cmd_mailbox { void *buf; dma_addr_t dma; struct mlx5_cmd_mailbox *next; }; struct mlx5_buf_list { void *buf; dma_addr_t map; }; struct mlx5_buf { struct mlx5_buf_list direct; struct mlx5_buf_list *page_list; int nbufs; int npages; int size; u8 page_shift; }; struct mlx5_eq { struct mlx5_core_dev *dev; __be32 __iomem *doorbell; u32 cons_index; struct mlx5_buf buf; int size; u8 irqn; u8 eqn; int nent; u64 mask; char name[MLX5_MAX_EQ_NAME]; struct list_head list; int index; struct mlx5_rsc_debug *dbg; }; struct mlx5_core_psv { u32 psv_idx; struct psv_layout { u32 pd; u16 syndrome; u16 reserved; u16 bg; u16 app_tag; u32 ref_tag; } psv; }; struct mlx5_core_sig_ctx { struct mlx5_core_psv psv_memory; struct mlx5_core_psv psv_wire; struct ib_sig_err err_item; bool sig_status_checked; bool sig_err_exists; u32 sigerr_count; }; struct mlx5_core_mr { u64 iova; u64 size; u32 key; u32 pd; }; struct mlx5_core_srq { u32 srqn; int max; int max_gs; int max_avail_gather; int wqe_shift; void (*event) (struct mlx5_core_srq *, enum mlx5_event); atomic_t refcount; struct completion free; }; struct mlx5_eq_table { void __iomem *update_ci; void __iomem *update_arm_ci; struct list_head *comp_eq_head; struct mlx5_eq pages_eq; struct mlx5_eq async_eq; struct mlx5_eq cmd_eq; struct msix_entry *msix_arr; int num_comp_vectors; /* protect EQs list */ spinlock_t lock; }; struct mlx5_uar { u32 index; struct list_head bf_list; unsigned free_bf_bmap; void __iomem *wc_map; void __iomem *map; }; struct mlx5_core_health { struct health_buffer __iomem *health; __be32 __iomem *health_counter; struct timer_list timer; struct list_head list; u32 prev; int miss_counter; }; struct mlx5_cq_table { /* protect radix tree */ spinlock_t lock; struct radix_tree_root tree; }; struct mlx5_qp_table { /* protect radix tree */ spinlock_t lock; struct radix_tree_root tree; }; struct mlx5_srq_table { /* protect radix tree */ spinlock_t lock; struct radix_tree_root tree; }; struct mlx5_mr_table { /* protect radix tree */ rwlock_t lock; struct radix_tree_root tree; }; struct mlx5_priv { char name[MLX5_MAX_NAME_LEN]; struct mlx5_eq_table eq_table; struct mlx5_uuar_info uuari; MLX5_DECLARE_DOORBELL_LOCK(cq_uar_lock); /* pages stuff */ struct workqueue_struct *pg_wq; struct rb_root page_root; int fw_pages; int reg_pages; struct list_head free_list; struct mlx5_core_health health; struct mlx5_srq_table srq_table; /* start: qp staff */ struct mlx5_qp_table qp_table; struct dentry *qp_debugfs; struct dentry *eq_debugfs; struct dentry *cq_debugfs; struct dentry *cmdif_debugfs; /* end: qp staff */ /* start: cq staff */ struct mlx5_cq_table cq_table; /* end: cq staff */ /* start: mr staff */ struct mlx5_mr_table mr_table; /* end: mr staff */ /* start: alloc staff */ struct mutex pgdir_mutex; struct list_head pgdir_list; /* end: alloc staff */ struct dentry *dbg_root; /* protect mkey key part */ spinlock_t mkey_lock; u8 mkey_key; struct list_head dev_list; struct list_head ctx_list; spinlock_t ctx_lock; }; struct mlx5_core_dev { struct pci_dev *pdev; u8 rev_id; char board_id[MLX5_BOARD_ID_LEN]; struct mlx5_cmd cmd; struct mlx5_caps caps; phys_addr_t iseg_base; struct mlx5_init_seg __iomem *iseg; void (*event) (struct mlx5_core_dev *dev, enum mlx5_dev_event event, unsigned long param); struct mlx5_priv priv; struct mlx5_profile *profile; atomic_t num_qps; }; struct mlx5_db { __be32 *db; union { struct mlx5_db_pgdir *pgdir; struct mlx5_ib_user_db_page *user_page; } u; dma_addr_t dma; int index; }; enum { MLX5_DB_PER_PAGE = PAGE_SIZE / L1_CACHE_BYTES, }; enum { MLX5_COMP_EQ_SIZE = 1024, }; struct mlx5_db_pgdir { struct list_head list; DECLARE_BITMAP(bitmap, MLX5_DB_PER_PAGE); __be32 *db_page; dma_addr_t db_dma; }; typedef void (*mlx5_cmd_cbk_t)(int status, void *context); struct mlx5_cmd_work_ent { struct mlx5_cmd_msg *in; struct mlx5_cmd_msg *out; void *uout; int uout_size; mlx5_cmd_cbk_t callback; void *context; int idx; struct completion done; struct mlx5_cmd *cmd; struct work_struct work; struct mlx5_cmd_layout *lay; int ret; int page_queue; u8 status; u8 token; u64 ts1; u64 ts2; u16 op; }; struct mlx5_pas { u64 pa; u8 log_sz; }; static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset) { if (likely(BITS_PER_LONG == 64 || buf->nbufs == 1)) return buf->direct.buf + offset; else return buf->page_list[offset >> PAGE_SHIFT].buf + (offset & (PAGE_SIZE - 1)); } extern struct workqueue_struct *mlx5_core_wq; #define STRUCT_FIELD(header, field) \ .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \ .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field struct ib_field { size_t struct_offset_bytes; size_t struct_size_bytes; int offset_bits; int size_bits; }; static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev) { return pci_get_drvdata(pdev); } extern struct dentry *mlx5_debugfs_root; static inline u16 fw_rev_maj(struct mlx5_core_dev *dev) { return ioread32be(&dev->iseg->fw_rev) & 0xffff; } static inline u16 fw_rev_min(struct mlx5_core_dev *dev) { return ioread32be(&dev->iseg->fw_rev) >> 16; } static inline u16 fw_rev_sub(struct mlx5_core_dev *dev) { return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff; } static inline u16 cmdif_rev(struct mlx5_core_dev *dev) { return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16; } static inline void *mlx5_vzalloc(unsigned long size) { void *rtn; rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN); if (!rtn) rtn = vzalloc(size); return rtn; } static inline void mlx5_vfree(const void *addr) { if (addr && is_vmalloc_addr(addr)) vfree(addr); else kfree(addr); } static inline u32 mlx5_base_mkey(const u32 key) { return key & 0xffffff00u; } int mlx5_cmd_init(struct mlx5_core_dev *dev); void mlx5_cmd_cleanup(struct mlx5_core_dev *dev); void mlx5_cmd_use_events(struct mlx5_core_dev *dev); void mlx5_cmd_use_polling(struct mlx5_core_dev *dev); int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr); int mlx5_cmd_status_to_err_v2(void *ptr); int mlx5_core_get_caps(struct mlx5_core_dev *dev, struct mlx5_caps *caps, u16 opmod); int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, int out_size); int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size, void *out, int out_size, mlx5_cmd_cbk_t callback, void *context); int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn); int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn); int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari); int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari); void mlx5_health_cleanup(void); void __init mlx5_health_init(void); void mlx5_start_health_poll(struct mlx5_core_dev *dev); void mlx5_stop_health_poll(struct mlx5_core_dev *dev); int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, int max_direct, struct mlx5_buf *buf); void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf); struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev, gfp_t flags, int npages); void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev, struct mlx5_cmd_mailbox *head); int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, struct mlx5_create_srq_mbox_in *in, int inlen); int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq); int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, struct mlx5_query_srq_mbox_out *out); int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, u16 lwm, int is_srq); void mlx5_init_mr_table(struct mlx5_core_dev *dev); void mlx5_cleanup_mr_table(struct mlx5_core_dev *dev); int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, struct mlx5_create_mkey_mbox_in *in, int inlen, mlx5_cmd_cbk_t callback, void *context, struct mlx5_create_mkey_mbox_out *out); int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr); int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, struct mlx5_query_mkey_mbox_out *out, int outlen); int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, u32 *mkey); int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn); int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn); int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, void *inb, void *outb, u16 opmod, u8 port); void mlx5_pagealloc_init(struct mlx5_core_dev *dev); void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev); int mlx5_pagealloc_start(struct mlx5_core_dev *dev); void mlx5_pagealloc_stop(struct mlx5_core_dev *dev); void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id, s32 npages); int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot); int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev); void mlx5_register_debugfs(void); void mlx5_unregister_debugfs(void); int mlx5_eq_init(struct mlx5_core_dev *dev); void mlx5_eq_cleanup(struct mlx5_core_dev *dev); void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas); void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn); void mlx5_qp_event(struct mlx5_core_dev *dev, u32 qpn, int event_type); void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type); struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn); void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector); void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type); int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, int nent, u64 mask, const char *name, struct mlx5_uar *uar); int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq); int mlx5_start_eqs(struct mlx5_core_dev *dev); int mlx5_stop_eqs(struct mlx5_core_dev *dev); int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev); void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev); int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in, int size_in, void *data_out, int size_out, u16 reg_num, int arg, int write); int mlx5_set_port_caps(struct mlx5_core_dev *dev, u8 port_num, u32 caps); int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq); void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq); int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq, struct mlx5_query_eq_mbox_out *out, int outlen); int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev); void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev); int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev); void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev); int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db); void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db); const char *mlx5_command_str(int command); int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev); void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev); int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn, int npsvs, u32 *sig_index); int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num); static inline u32 mlx5_mkey_to_idx(u32 mkey) { return mkey >> 8; } static inline u32 mlx5_idx_to_mkey(u32 mkey_idx) { return mkey_idx << 8; } static inline u8 mlx5_mkey_variant(u32 mkey) { return mkey & 0xff; } enum { MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0, MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1, }; enum { MAX_MR_CACHE_ENTRIES = 16, }; struct mlx5_interface { void * (*add)(struct mlx5_core_dev *dev); void (*remove)(struct mlx5_core_dev *dev, void *context); void (*event)(struct mlx5_core_dev *dev, void *context, enum mlx5_dev_event event, unsigned long param); struct list_head list; }; int mlx5_register_interface(struct mlx5_interface *intf); void mlx5_unregister_interface(struct mlx5_interface *intf); struct mlx5_profile { u64 mask; u8 log_max_qp; struct { int size; int limit; } mr_cache[MAX_MR_CACHE_ENTRIES]; }; #endif /* MLX5_DRIVER_H */