600 lines
19 KiB
C
600 lines
19 KiB
C
/*
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* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
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* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef MTHCA_DEV_H
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#define MTHCA_DEV_H
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#include <linux/spinlock.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/timer.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/semaphore.h>
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#include "mthca_provider.h"
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#include "mthca_doorbell.h"
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#define DRV_NAME "ib_mthca"
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#define PFX DRV_NAME ": "
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#define DRV_VERSION "1.0"
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#define DRV_RELDATE "April 4, 2008"
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enum {
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MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
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MTHCA_FLAG_SRQ = 1 << 2,
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MTHCA_FLAG_MSI_X = 1 << 3,
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MTHCA_FLAG_NO_LAM = 1 << 4,
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MTHCA_FLAG_FMR = 1 << 5,
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MTHCA_FLAG_MEMFREE = 1 << 6,
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MTHCA_FLAG_PCIE = 1 << 7,
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MTHCA_FLAG_SINAI_OPT = 1 << 8
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};
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enum {
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MTHCA_MAX_PORTS = 2
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};
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enum {
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MTHCA_BOARD_ID_LEN = 64
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};
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enum {
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MTHCA_EQ_CONTEXT_SIZE = 0x40,
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MTHCA_CQ_CONTEXT_SIZE = 0x40,
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MTHCA_QP_CONTEXT_SIZE = 0x200,
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MTHCA_RDB_ENTRY_SIZE = 0x20,
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MTHCA_AV_SIZE = 0x20,
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MTHCA_MGM_ENTRY_SIZE = 0x100,
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/* Arbel FW gives us these, but we need them for Tavor */
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MTHCA_MPT_ENTRY_SIZE = 0x40,
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MTHCA_MTT_SEG_SIZE = 0x40,
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MTHCA_QP_PER_MGM = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
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};
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enum {
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MTHCA_EQ_CMD,
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MTHCA_EQ_ASYNC,
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MTHCA_EQ_COMP,
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MTHCA_NUM_EQ
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};
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enum {
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MTHCA_OPCODE_NOP = 0x00,
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MTHCA_OPCODE_RDMA_WRITE = 0x08,
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MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
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MTHCA_OPCODE_SEND = 0x0a,
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MTHCA_OPCODE_SEND_IMM = 0x0b,
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MTHCA_OPCODE_RDMA_READ = 0x10,
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MTHCA_OPCODE_ATOMIC_CS = 0x11,
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MTHCA_OPCODE_ATOMIC_FA = 0x12,
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MTHCA_OPCODE_BIND_MW = 0x18,
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};
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enum {
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MTHCA_CMD_USE_EVENTS = 1 << 0,
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MTHCA_CMD_POST_DOORBELLS = 1 << 1
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};
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enum {
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MTHCA_CMD_NUM_DBELL_DWORDS = 8
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};
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struct mthca_cmd {
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struct dma_pool *pool;
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struct mutex hcr_mutex;
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struct semaphore poll_sem;
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struct semaphore event_sem;
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int max_cmds;
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spinlock_t context_lock;
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int free_head;
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struct mthca_cmd_context *context;
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u16 token_mask;
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u32 flags;
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void __iomem *dbell_map;
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u16 dbell_offsets[MTHCA_CMD_NUM_DBELL_DWORDS];
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};
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struct mthca_limits {
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int num_ports;
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int vl_cap;
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int mtu_cap;
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int gid_table_len;
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int pkey_table_len;
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int local_ca_ack_delay;
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int num_uars;
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int max_sg;
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int num_qps;
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int max_wqes;
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int max_desc_sz;
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int max_qp_init_rdma;
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int reserved_qps;
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int num_srqs;
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int max_srq_wqes;
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int max_srq_sge;
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int reserved_srqs;
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int num_eecs;
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int reserved_eecs;
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int num_cqs;
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int max_cqes;
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int reserved_cqs;
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int num_eqs;
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int reserved_eqs;
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int num_mpts;
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int num_mtt_segs;
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int mtt_seg_size;
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int fmr_reserved_mtts;
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int reserved_mtts;
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int reserved_mrws;
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int reserved_uars;
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int num_mgms;
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int num_amgms;
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int reserved_mcgs;
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int num_pds;
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int reserved_pds;
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u32 page_size_cap;
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u32 flags;
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u16 stat_rate_support;
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u8 port_width_cap;
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};
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struct mthca_alloc {
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u32 last;
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u32 top;
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u32 max;
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u32 mask;
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spinlock_t lock;
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unsigned long *table;
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};
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struct mthca_array {
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struct {
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void **page;
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int used;
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} *page_list;
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};
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struct mthca_uar_table {
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struct mthca_alloc alloc;
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u64 uarc_base;
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int uarc_size;
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};
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struct mthca_pd_table {
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struct mthca_alloc alloc;
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};
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struct mthca_buddy {
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unsigned long **bits;
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int *num_free;
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int max_order;
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spinlock_t lock;
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};
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struct mthca_mr_table {
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struct mthca_alloc mpt_alloc;
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struct mthca_buddy mtt_buddy;
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struct mthca_buddy *fmr_mtt_buddy;
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u64 mtt_base;
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u64 mpt_base;
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struct mthca_icm_table *mtt_table;
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struct mthca_icm_table *mpt_table;
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struct {
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void __iomem *mpt_base;
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void __iomem *mtt_base;
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struct mthca_buddy mtt_buddy;
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} tavor_fmr;
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};
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struct mthca_eq_table {
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struct mthca_alloc alloc;
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void __iomem *clr_int;
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u32 clr_mask;
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u32 arm_mask;
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struct mthca_eq eq[MTHCA_NUM_EQ];
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u64 icm_virt;
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struct page *icm_page;
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dma_addr_t icm_dma;
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int have_irq;
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u8 inta_pin;
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};
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struct mthca_cq_table {
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struct mthca_alloc alloc;
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spinlock_t lock;
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struct mthca_array cq;
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struct mthca_icm_table *table;
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};
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struct mthca_srq_table {
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struct mthca_alloc alloc;
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spinlock_t lock;
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struct mthca_array srq;
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struct mthca_icm_table *table;
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};
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struct mthca_qp_table {
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struct mthca_alloc alloc;
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u32 rdb_base;
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int rdb_shift;
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int sqp_start;
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spinlock_t lock;
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struct mthca_array qp;
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struct mthca_icm_table *qp_table;
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struct mthca_icm_table *eqp_table;
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struct mthca_icm_table *rdb_table;
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};
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struct mthca_av_table {
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struct dma_pool *pool;
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int num_ddr_avs;
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u64 ddr_av_base;
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void __iomem *av_map;
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struct mthca_alloc alloc;
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};
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struct mthca_mcg_table {
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struct mutex mutex;
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struct mthca_alloc alloc;
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struct mthca_icm_table *table;
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};
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struct mthca_catas_err {
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u64 addr;
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u32 __iomem *map;
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u32 size;
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struct timer_list timer;
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struct list_head list;
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};
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extern struct mutex mthca_device_mutex;
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struct mthca_dev {
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struct ib_device ib_dev;
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struct pci_dev *pdev;
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int hca_type;
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unsigned long mthca_flags;
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unsigned long device_cap_flags;
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u32 rev_id;
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char board_id[MTHCA_BOARD_ID_LEN];
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/* firmware info */
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u64 fw_ver;
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union {
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struct {
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u64 fw_start;
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u64 fw_end;
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} tavor;
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struct {
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u64 clr_int_base;
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u64 eq_arm_base;
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u64 eq_set_ci_base;
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struct mthca_icm *fw_icm;
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struct mthca_icm *aux_icm;
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u16 fw_pages;
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} arbel;
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} fw;
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u64 ddr_start;
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u64 ddr_end;
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MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
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struct mutex cap_mask_mutex;
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void __iomem *hcr;
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void __iomem *kar;
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void __iomem *clr_base;
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union {
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struct {
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void __iomem *ecr_base;
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} tavor;
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struct {
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void __iomem *eq_arm;
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void __iomem *eq_set_ci_base;
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} arbel;
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} eq_regs;
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struct mthca_cmd cmd;
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struct mthca_limits limits;
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struct mthca_uar_table uar_table;
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struct mthca_pd_table pd_table;
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struct mthca_mr_table mr_table;
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struct mthca_eq_table eq_table;
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struct mthca_cq_table cq_table;
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struct mthca_srq_table srq_table;
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struct mthca_qp_table qp_table;
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struct mthca_av_table av_table;
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struct mthca_mcg_table mcg_table;
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struct mthca_catas_err catas_err;
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struct mthca_uar driver_uar;
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struct mthca_db_table *db_tab;
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struct mthca_pd driver_pd;
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struct mthca_mr driver_mr;
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struct ib_mad_agent *send_agent[MTHCA_MAX_PORTS][2];
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struct ib_ah *sm_ah[MTHCA_MAX_PORTS];
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spinlock_t sm_lock;
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u8 rate[MTHCA_MAX_PORTS];
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bool active;
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};
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#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
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extern int mthca_debug_level;
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#define mthca_dbg(mdev, format, arg...) \
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do { \
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if (mthca_debug_level) \
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dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
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} while (0)
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#else /* CONFIG_INFINIBAND_MTHCA_DEBUG */
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#define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
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#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
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#define mthca_err(mdev, format, arg...) \
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dev_err(&mdev->pdev->dev, format, ## arg)
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#define mthca_info(mdev, format, arg...) \
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dev_info(&mdev->pdev->dev, format, ## arg)
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#define mthca_warn(mdev, format, arg...) \
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dev_warn(&mdev->pdev->dev, format, ## arg)
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extern void __buggy_use_of_MTHCA_GET(void);
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extern void __buggy_use_of_MTHCA_PUT(void);
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#define MTHCA_GET(dest, source, offset) \
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do { \
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void *__p = (char *) (source) + (offset); \
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switch (sizeof (dest)) { \
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case 1: (dest) = *(u8 *) __p; break; \
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case 2: (dest) = be16_to_cpup(__p); break; \
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case 4: (dest) = be32_to_cpup(__p); break; \
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case 8: (dest) = be64_to_cpup(__p); break; \
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default: __buggy_use_of_MTHCA_GET(); \
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} \
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} while (0)
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#define MTHCA_PUT(dest, source, offset) \
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do { \
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void *__d = ((char *) (dest) + (offset)); \
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switch (sizeof(source)) { \
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case 1: *(u8 *) __d = (source); break; \
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case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
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case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
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case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
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default: __buggy_use_of_MTHCA_PUT(); \
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} \
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} while (0)
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int mthca_reset(struct mthca_dev *mdev);
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u32 mthca_alloc(struct mthca_alloc *alloc);
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void mthca_free(struct mthca_alloc *alloc, u32 obj);
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int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
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u32 reserved);
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void mthca_alloc_cleanup(struct mthca_alloc *alloc);
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void *mthca_array_get(struct mthca_array *array, int index);
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int mthca_array_set(struct mthca_array *array, int index, void *value);
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void mthca_array_clear(struct mthca_array *array, int index);
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int mthca_array_init(struct mthca_array *array, int nent);
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void mthca_array_cleanup(struct mthca_array *array, int nent);
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int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
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union mthca_buf *buf, int *is_direct, struct mthca_pd *pd,
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int hca_write, struct mthca_mr *mr);
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void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf,
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int is_direct, struct mthca_mr *mr);
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int mthca_init_uar_table(struct mthca_dev *dev);
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int mthca_init_pd_table(struct mthca_dev *dev);
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int mthca_init_mr_table(struct mthca_dev *dev);
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int mthca_init_eq_table(struct mthca_dev *dev);
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int mthca_init_cq_table(struct mthca_dev *dev);
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int mthca_init_srq_table(struct mthca_dev *dev);
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int mthca_init_qp_table(struct mthca_dev *dev);
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int mthca_init_av_table(struct mthca_dev *dev);
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int mthca_init_mcg_table(struct mthca_dev *dev);
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void mthca_cleanup_uar_table(struct mthca_dev *dev);
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void mthca_cleanup_pd_table(struct mthca_dev *dev);
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void mthca_cleanup_mr_table(struct mthca_dev *dev);
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void mthca_cleanup_eq_table(struct mthca_dev *dev);
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void mthca_cleanup_cq_table(struct mthca_dev *dev);
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void mthca_cleanup_srq_table(struct mthca_dev *dev);
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void mthca_cleanup_qp_table(struct mthca_dev *dev);
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void mthca_cleanup_av_table(struct mthca_dev *dev);
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void mthca_cleanup_mcg_table(struct mthca_dev *dev);
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int mthca_register_device(struct mthca_dev *dev);
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void mthca_unregister_device(struct mthca_dev *dev);
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void mthca_start_catas_poll(struct mthca_dev *dev);
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void mthca_stop_catas_poll(struct mthca_dev *dev);
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int __mthca_restart_one(struct pci_dev *pdev);
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int mthca_catas_init(void);
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void mthca_catas_cleanup(void);
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int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
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void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
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int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
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void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
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int mthca_write_mtt_size(struct mthca_dev *dev);
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struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
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void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
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int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
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int start_index, u64 *buffer_list, int list_len);
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int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
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u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
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int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
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u32 access, struct mthca_mr *mr);
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int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
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u64 *buffer_list, int buffer_size_shift,
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int list_len, u64 iova, u64 total_size,
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u32 access, struct mthca_mr *mr);
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void mthca_free_mr(struct mthca_dev *dev, struct mthca_mr *mr);
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int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
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u32 access, struct mthca_fmr *fmr);
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int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
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int list_len, u64 iova);
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void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
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int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
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int list_len, u64 iova);
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void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
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int mthca_free_fmr(struct mthca_dev *dev, struct mthca_fmr *fmr);
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int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
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void mthca_unmap_eq_icm(struct mthca_dev *dev);
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int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
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struct ib_wc *entry);
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int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
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int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
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int mthca_init_cq(struct mthca_dev *dev, int nent,
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struct mthca_ucontext *ctx, u32 pdn,
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struct mthca_cq *cq);
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void mthca_free_cq(struct mthca_dev *dev,
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struct mthca_cq *cq);
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void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
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void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
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enum ib_event_type event_type);
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void mthca_cq_clean(struct mthca_dev *dev, struct mthca_cq *cq, u32 qpn,
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struct mthca_srq *srq);
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void mthca_cq_resize_copy_cqes(struct mthca_cq *cq);
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int mthca_alloc_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int nent);
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void mthca_free_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int cqe);
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int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
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struct ib_srq_attr *attr, struct mthca_srq *srq,
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struct ib_udata *udata);
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void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq);
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int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
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enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
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int mthca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
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int mthca_max_srq_sge(struct mthca_dev *dev);
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void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
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enum ib_event_type event_type);
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void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
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int mthca_tavor_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
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const struct ib_recv_wr **bad_wr);
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int mthca_arbel_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
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const struct ib_recv_wr **bad_wr);
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void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
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enum ib_event_type event_type);
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int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
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struct ib_qp_init_attr *qp_init_attr);
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int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
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struct ib_udata *udata);
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int mthca_tavor_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
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const struct ib_send_wr **bad_wr);
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int mthca_tavor_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
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const struct ib_recv_wr **bad_wr);
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int mthca_arbel_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
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|
const struct ib_send_wr **bad_wr);
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int mthca_arbel_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
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|
const struct ib_recv_wr **bad_wr);
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void mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
|
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int index, int *dbd, __be32 *new_wqe);
|
|
int mthca_alloc_qp(struct mthca_dev *dev,
|
|
struct mthca_pd *pd,
|
|
struct mthca_cq *send_cq,
|
|
struct mthca_cq *recv_cq,
|
|
enum ib_qp_type type,
|
|
enum ib_sig_type send_policy,
|
|
struct ib_qp_cap *cap,
|
|
struct mthca_qp *qp,
|
|
struct ib_udata *udata);
|
|
int mthca_alloc_sqp(struct mthca_dev *dev,
|
|
struct mthca_pd *pd,
|
|
struct mthca_cq *send_cq,
|
|
struct mthca_cq *recv_cq,
|
|
enum ib_sig_type send_policy,
|
|
struct ib_qp_cap *cap,
|
|
int qpn,
|
|
int port,
|
|
struct mthca_sqp *sqp,
|
|
struct ib_udata *udata);
|
|
void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
|
|
int mthca_create_ah(struct mthca_dev *dev,
|
|
struct mthca_pd *pd,
|
|
struct rdma_ah_attr *ah_attr,
|
|
struct mthca_ah *ah);
|
|
int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
|
|
int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
|
|
struct ib_ud_header *header);
|
|
int mthca_ah_query(struct ib_ah *ibah, struct rdma_ah_attr *attr);
|
|
int mthca_ah_grh_present(struct mthca_ah *ah);
|
|
u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
|
|
enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);
|
|
|
|
int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
|
|
int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
|
|
|
|
int mthca_process_mad(struct ib_device *ibdev,
|
|
int mad_flags,
|
|
u8 port_num,
|
|
const struct ib_wc *in_wc,
|
|
const struct ib_grh *in_grh,
|
|
const struct ib_mad_hdr *in, size_t in_mad_size,
|
|
struct ib_mad_hdr *out, size_t *out_mad_size,
|
|
u16 *out_mad_pkey_index);
|
|
int mthca_create_agents(struct mthca_dev *dev);
|
|
void mthca_free_agents(struct mthca_dev *dev);
|
|
|
|
static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
|
|
{
|
|
return container_of(ibdev, struct mthca_dev, ib_dev);
|
|
}
|
|
|
|
static inline int mthca_is_memfree(struct mthca_dev *dev)
|
|
{
|
|
return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
|
|
}
|
|
|
|
#endif /* MTHCA_DEV_H */
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