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