/* * IBM eServer eHCA Infiniband device driver for Linux on POWER * * Struct definition for eHCA internal structures * * Authors: Heiko J Schick * Christoph Raisch * Joachim Fenkes * * Copyright (c) 2005 IBM Corporation * * All rights reserved. * * This source code is distributed under a dual license of GPL v2.0 and OpenIB * BSD. * * OpenIB BSD License * * 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. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __EHCA_CLASSES_H__ #define __EHCA_CLASSES_H__ struct ehca_module; struct ehca_qp; struct ehca_cq; struct ehca_eq; struct ehca_mr; struct ehca_mw; struct ehca_pd; struct ehca_av; #include #include #include #include #ifdef CONFIG_PPC64 #include "ehca_classes_pSeries.h" #endif #include "ipz_pt_fn.h" #include "ehca_qes.h" #include "ehca_irq.h" #define EHCA_EQE_CACHE_SIZE 20 struct ehca_eqe_cache_entry { struct ehca_eqe *eqe; struct ehca_cq *cq; }; struct ehca_eq { u32 length; struct ipz_queue ipz_queue; struct ipz_eq_handle ipz_eq_handle; struct work_struct work; struct h_galpas galpas; int is_initialized; struct ehca_pfeq pf; spinlock_t spinlock; struct tasklet_struct interrupt_task; u32 ist; spinlock_t irq_spinlock; struct ehca_eqe_cache_entry eqe_cache[EHCA_EQE_CACHE_SIZE]; }; struct ehca_sma_attr { u16 lid, lmc, sm_sl, sm_lid; u16 pkey_tbl_len, pkeys[16]; }; struct ehca_sport { struct ib_cq *ibcq_aqp1; struct ib_qp *ibqp_sqp[2]; /* lock to serialze modify_qp() calls for sqp in normal * and irq path (when event PORT_ACTIVE is received first time) */ spinlock_t mod_sqp_lock; enum ib_port_state port_state; struct ehca_sma_attr saved_attr; }; #define HCA_CAP_MR_PGSIZE_4K 0x80000000 #define HCA_CAP_MR_PGSIZE_64K 0x40000000 #define HCA_CAP_MR_PGSIZE_1M 0x20000000 #define HCA_CAP_MR_PGSIZE_16M 0x10000000 struct ehca_shca { struct ib_device ib_device; struct of_device *ofdev; u8 num_ports; int hw_level; struct list_head shca_list; struct ipz_adapter_handle ipz_hca_handle; struct ehca_sport sport[2]; struct ehca_eq eq; struct ehca_eq neq; struct ehca_mr *maxmr; struct ehca_pd *pd; struct h_galpas galpas; struct mutex modify_mutex; u64 hca_cap; /* MR pgsize: bit 0-3 means 4K, 64K, 1M, 16M respectively */ u32 hca_cap_mr_pgsize; int max_mtu; }; struct ehca_pd { struct ib_pd ib_pd; struct ipz_pd fw_pd; u32 ownpid; /* small queue mgmt */ struct mutex lock; struct list_head free[2]; struct list_head full[2]; }; enum ehca_ext_qp_type { EQPT_NORMAL = 0, EQPT_LLQP = 1, EQPT_SRQBASE = 2, EQPT_SRQ = 3, }; /* struct to cache modify_qp()'s parms for GSI/SMI qp */ struct ehca_mod_qp_parm { int mask; struct ib_qp_attr attr; }; #define EHCA_MOD_QP_PARM_MAX 4 struct ehca_qp { union { struct ib_qp ib_qp; struct ib_srq ib_srq; }; u32 qp_type; enum ehca_ext_qp_type ext_type; struct ipz_queue ipz_squeue; struct ipz_queue ipz_rqueue; struct h_galpas galpas; u32 qkey; u32 real_qp_num; u32 token; spinlock_t spinlock_s; spinlock_t spinlock_r; u32 sq_max_inline_data_size; struct ipz_qp_handle ipz_qp_handle; struct ehca_pfqp pf; struct ib_qp_init_attr init_attr; struct ehca_cq *send_cq; struct ehca_cq *recv_cq; unsigned int sqerr_purgeflag; struct hlist_node list_entries; /* array to cache modify_qp()'s parms for GSI/SMI qp */ struct ehca_mod_qp_parm *mod_qp_parm; int mod_qp_parm_idx; /* mmap counter for resources mapped into user space */ u32 mm_count_squeue; u32 mm_count_rqueue; u32 mm_count_galpa; /* unsolicited ack circumvention */ int unsol_ack_circ; int mtu_shift; u32 message_count; u32 packet_count; }; #define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ) #define HAS_SQ(qp) (qp->ext_type != EQPT_SRQ) #define HAS_RQ(qp) (qp->ext_type != EQPT_SRQBASE) /* must be power of 2 */ #define QP_HASHTAB_LEN 8 struct ehca_cq { struct ib_cq ib_cq; struct ipz_queue ipz_queue; struct h_galpas galpas; spinlock_t spinlock; u32 cq_number; u32 token; u32 nr_of_entries; struct ipz_cq_handle ipz_cq_handle; struct ehca_pfcq pf; spinlock_t cb_lock; struct hlist_head qp_hashtab[QP_HASHTAB_LEN]; struct list_head entry; u32 nr_callbacks; /* #events assigned to cpu by scaling code */ atomic_t nr_events; /* #events seen */ wait_queue_head_t wait_completion; spinlock_t task_lock; u32 ownpid; /* mmap counter for resources mapped into user space */ u32 mm_count_queue; u32 mm_count_galpa; }; enum ehca_mr_flag { EHCA_MR_FLAG_FMR = 0x80000000, /* FMR, created with ehca_alloc_fmr */ EHCA_MR_FLAG_MAXMR = 0x40000000, /* max-MR */ }; struct ehca_mr { union { struct ib_mr ib_mr; /* must always be first in ehca_mr */ struct ib_fmr ib_fmr; /* must always be first in ehca_mr */ } ib; struct ib_umem *umem; spinlock_t mrlock; enum ehca_mr_flag flags; u32 num_kpages; /* number of kernel pages */ u32 num_hwpages; /* number of hw pages to form MR */ u64 hwpage_size; /* hw page size used for this MR */ int acl; /* ACL (stored here for usage in reregister) */ u64 *start; /* virtual start address (stored here for */ /* usage in reregister) */ u64 size; /* size (stored here for usage in reregister) */ u32 fmr_page_size; /* page size for FMR */ u32 fmr_max_pages; /* max pages for FMR */ u32 fmr_max_maps; /* max outstanding maps for FMR */ u32 fmr_map_cnt; /* map counter for FMR */ /* fw specific data */ struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */ struct h_galpas galpas; }; struct ehca_mw { struct ib_mw ib_mw; /* gen2 mw, must always be first in ehca_mw */ spinlock_t mwlock; u8 never_bound; /* indication MW was never bound */ struct ipz_mrmw_handle ipz_mw_handle; /* MW handle for h-calls */ struct h_galpas galpas; }; enum ehca_mr_pgi_type { EHCA_MR_PGI_PHYS = 1, /* type of ehca_reg_phys_mr, * ehca_rereg_phys_mr, * ehca_reg_internal_maxmr */ EHCA_MR_PGI_USER = 2, /* type of ehca_reg_user_mr */ EHCA_MR_PGI_FMR = 3 /* type of ehca_map_phys_fmr */ }; struct ehca_mr_pginfo { enum ehca_mr_pgi_type type; u64 num_kpages; u64 kpage_cnt; u64 hwpage_size; /* hw page size used for this MR */ u64 num_hwpages; /* number of hw pages */ u64 hwpage_cnt; /* counter for hw pages */ u64 next_hwpage; /* next hw page in buffer/chunk/listelem */ union { struct { /* type EHCA_MR_PGI_PHYS section */ int num_phys_buf; struct ib_phys_buf *phys_buf_array; u64 next_buf; } phy; struct { /* type EHCA_MR_PGI_USER section */ struct ib_umem *region; struct ib_umem_chunk *next_chunk; u64 next_nmap; } usr; struct { /* type EHCA_MR_PGI_FMR section */ u64 fmr_pgsize; u64 *page_list; u64 next_listelem; } fmr; } u; }; /* output parameters for MR/FMR hipz calls */ struct ehca_mr_hipzout_parms { struct ipz_mrmw_handle handle; u32 lkey; u32 rkey; u64 len; u64 vaddr; u32 acl; }; /* output parameters for MW hipz calls */ struct ehca_mw_hipzout_parms { struct ipz_mrmw_handle handle; u32 rkey; }; struct ehca_av { struct ib_ah ib_ah; struct ehca_ud_av av; }; struct ehca_ucontext { struct ib_ucontext ib_ucontext; }; int ehca_init_pd_cache(void); void ehca_cleanup_pd_cache(void); int ehca_init_cq_cache(void); void ehca_cleanup_cq_cache(void); int ehca_init_qp_cache(void); void ehca_cleanup_qp_cache(void); int ehca_init_av_cache(void); void ehca_cleanup_av_cache(void); int ehca_init_mrmw_cache(void); void ehca_cleanup_mrmw_cache(void); int ehca_init_small_qp_cache(void); void ehca_cleanup_small_qp_cache(void); extern rwlock_t ehca_qp_idr_lock; extern rwlock_t ehca_cq_idr_lock; extern struct idr ehca_qp_idr; extern struct idr ehca_cq_idr; extern int ehca_static_rate; extern int ehca_port_act_time; extern int ehca_use_hp_mr; extern int ehca_scaling_code; extern int ehca_lock_hcalls; extern int ehca_nr_ports; struct ipzu_queue_resp { u32 qe_size; /* queue entry size */ u32 act_nr_of_sg; u32 queue_length; /* queue length allocated in bytes */ u32 pagesize; u32 toggle_state; u32 offset; /* save offset within a page for small_qp */ }; struct ehca_create_cq_resp { u32 cq_number; u32 token; struct ipzu_queue_resp ipz_queue; u32 fw_handle_ofs; u32 dummy; }; struct ehca_create_qp_resp { u32 qp_num; u32 token; u32 qp_type; u32 ext_type; u32 qkey; /* qp_num assigned by ehca: sqp0/1 may have got different numbers */ u32 real_qp_num; u32 fw_handle_ofs; u32 dummy; struct ipzu_queue_resp ipz_squeue; struct ipzu_queue_resp ipz_rqueue; }; struct ehca_alloc_cq_parms { u32 nr_cqe; u32 act_nr_of_entries; u32 act_pages; struct ipz_eq_handle eq_handle; }; enum ehca_service_type { ST_RC = 0, ST_UC = 1, ST_RD = 2, ST_UD = 3, }; enum ehca_ll_comp_flags { LLQP_SEND_COMP = 0x20, LLQP_RECV_COMP = 0x40, LLQP_COMP_MASK = 0x60, }; struct ehca_alloc_queue_parms { /* input parameters */ int max_wr; int max_sge; int page_size; int is_small; /* output parameters */ u16 act_nr_wqes; u8 act_nr_sges; u32 queue_size; /* bytes for small queues, pages otherwise */ }; struct ehca_alloc_qp_parms { struct ehca_alloc_queue_parms squeue; struct ehca_alloc_queue_parms rqueue; /* input parameters */ enum ehca_service_type servicetype; int qp_storage; int sigtype; enum ehca_ext_qp_type ext_type; enum ehca_ll_comp_flags ll_comp_flags; int ud_av_l_key_ctl; u32 token; struct ipz_eq_handle eq_handle; struct ipz_pd pd; struct ipz_cq_handle send_cq_handle, recv_cq_handle; u32 srq_qpn, srq_token, srq_limit; /* output parameters */ u32 real_qp_num; struct ipz_qp_handle qp_handle; struct h_galpas galpas; }; int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp); int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num); struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int qp_num); #endif