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402 lines
12 KiB
402 lines
12 KiB
/* |
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* Copyright (c) 2012 - 2018 Intel Corporation. All rights reserved. |
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* Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. |
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* Copyright (c) 2005, 2006 PathScale, 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 QIB_VERBS_H |
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#define QIB_VERBS_H |
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#include <linux/types.h> |
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#include <linux/spinlock.h> |
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#include <linux/kernel.h> |
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#include <linux/interrupt.h> |
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#include <linux/kref.h> |
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#include <linux/workqueue.h> |
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#include <linux/kthread.h> |
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#include <linux/completion.h> |
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#include <rdma/ib_pack.h> |
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#include <rdma/ib_user_verbs.h> |
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#include <rdma/ib_hdrs.h> |
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#include <rdma/rdmavt_qp.h> |
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#include <rdma/rdmavt_cq.h> |
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struct qib_ctxtdata; |
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struct qib_pportdata; |
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struct qib_devdata; |
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struct qib_verbs_txreq; |
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#define QIB_MAX_RDMA_ATOMIC 16 |
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#define QIB_GUIDS_PER_PORT 5 |
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#define QIB_PSN_SHIFT 8 |
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/* |
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* Increment this value if any changes that break userspace ABI |
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* compatibility are made. |
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*/ |
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#define QIB_UVERBS_ABI_VERSION 2 |
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/* IB Performance Manager status values */ |
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#define IB_PMA_SAMPLE_STATUS_DONE 0x00 |
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#define IB_PMA_SAMPLE_STATUS_STARTED 0x01 |
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#define IB_PMA_SAMPLE_STATUS_RUNNING 0x02 |
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/* Mandatory IB performance counter select values. */ |
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#define IB_PMA_PORT_XMIT_DATA cpu_to_be16(0x0001) |
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#define IB_PMA_PORT_RCV_DATA cpu_to_be16(0x0002) |
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#define IB_PMA_PORT_XMIT_PKTS cpu_to_be16(0x0003) |
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#define IB_PMA_PORT_RCV_PKTS cpu_to_be16(0x0004) |
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#define IB_PMA_PORT_XMIT_WAIT cpu_to_be16(0x0005) |
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#define QIB_VENDOR_IPG cpu_to_be16(0xFFA0) |
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#define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL) |
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/* Values for set/get portinfo VLCap OperationalVLs */ |
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#define IB_VL_VL0 1 |
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#define IB_VL_VL0_1 2 |
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#define IB_VL_VL0_3 3 |
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#define IB_VL_VL0_7 4 |
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#define IB_VL_VL0_14 5 |
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static inline int qib_num_vls(int vls) |
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{ |
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switch (vls) { |
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default: |
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case IB_VL_VL0: |
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return 1; |
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case IB_VL_VL0_1: |
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return 2; |
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case IB_VL_VL0_3: |
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return 4; |
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case IB_VL_VL0_7: |
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return 8; |
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case IB_VL_VL0_14: |
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return 15; |
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} |
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} |
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struct qib_pio_header { |
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__le32 pbc[2]; |
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struct ib_header hdr; |
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} __packed; |
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/* |
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* qib specific data structure that will be hidden from rvt after the queue pair |
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* is made common. |
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*/ |
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struct qib_qp_priv { |
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struct ib_header *s_hdr; /* next packet header to send */ |
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struct list_head iowait; /* link for wait PIO buf */ |
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atomic_t s_dma_busy; |
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struct qib_verbs_txreq *s_tx; |
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struct work_struct s_work; |
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wait_queue_head_t wait_dma; |
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struct rvt_qp *owner; |
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}; |
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#define QIB_PSN_CREDIT 16 |
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struct qib_opcode_stats { |
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u64 n_packets; /* number of packets */ |
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u64 n_bytes; /* total number of bytes */ |
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}; |
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struct qib_opcode_stats_perctx { |
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struct qib_opcode_stats stats[128]; |
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}; |
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struct qib_pma_counters { |
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u64 n_unicast_xmit; /* total unicast packets sent */ |
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u64 n_unicast_rcv; /* total unicast packets received */ |
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u64 n_multicast_xmit; /* total multicast packets sent */ |
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u64 n_multicast_rcv; /* total multicast packets received */ |
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}; |
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struct qib_ibport { |
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struct rvt_ibport rvp; |
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struct rvt_ah *smi_ah; |
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__be64 guids[QIB_GUIDS_PER_PORT - 1]; /* writable GUIDs */ |
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struct qib_pma_counters __percpu *pmastats; |
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u64 z_unicast_xmit; /* starting count for PMA */ |
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u64 z_unicast_rcv; /* starting count for PMA */ |
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u64 z_multicast_xmit; /* starting count for PMA */ |
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u64 z_multicast_rcv; /* starting count for PMA */ |
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u64 z_symbol_error_counter; /* starting count for PMA */ |
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u64 z_link_error_recovery_counter; /* starting count for PMA */ |
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u64 z_link_downed_counter; /* starting count for PMA */ |
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u64 z_port_rcv_errors; /* starting count for PMA */ |
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u64 z_port_rcv_remphys_errors; /* starting count for PMA */ |
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u64 z_port_xmit_discards; /* starting count for PMA */ |
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u64 z_port_xmit_data; /* starting count for PMA */ |
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u64 z_port_rcv_data; /* starting count for PMA */ |
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u64 z_port_xmit_packets; /* starting count for PMA */ |
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u64 z_port_rcv_packets; /* starting count for PMA */ |
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u32 z_local_link_integrity_errors; /* starting count for PMA */ |
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u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */ |
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u32 z_vl15_dropped; /* starting count for PMA */ |
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u8 sl_to_vl[16]; |
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}; |
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struct qib_ibdev { |
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struct rvt_dev_info rdi; |
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struct list_head piowait; /* list for wait PIO buf */ |
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struct list_head dmawait; /* list for wait DMA */ |
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struct list_head txwait; /* list for wait qib_verbs_txreq */ |
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struct list_head memwait; /* list for wait kernel memory */ |
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struct list_head txreq_free; |
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struct timer_list mem_timer; |
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struct qib_pio_header *pio_hdrs; |
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dma_addr_t pio_hdrs_phys; |
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u32 n_piowait; |
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u32 n_txwait; |
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#ifdef CONFIG_DEBUG_FS |
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/* per HCA debugfs */ |
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struct dentry *qib_ibdev_dbg; |
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#endif |
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}; |
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struct qib_verbs_counters { |
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u64 symbol_error_counter; |
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u64 link_error_recovery_counter; |
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u64 link_downed_counter; |
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u64 port_rcv_errors; |
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u64 port_rcv_remphys_errors; |
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u64 port_xmit_discards; |
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u64 port_xmit_data; |
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u64 port_rcv_data; |
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u64 port_xmit_packets; |
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u64 port_rcv_packets; |
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u32 local_link_integrity_errors; |
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u32 excessive_buffer_overrun_errors; |
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u32 vl15_dropped; |
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}; |
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static inline struct qib_ibdev *to_idev(struct ib_device *ibdev) |
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{ |
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struct rvt_dev_info *rdi; |
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rdi = container_of(ibdev, struct rvt_dev_info, ibdev); |
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return container_of(rdi, struct qib_ibdev, rdi); |
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} |
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/* |
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* Send if not busy or waiting for I/O and either |
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* a RC response is pending or we can process send work requests. |
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*/ |
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static inline int qib_send_ok(struct rvt_qp *qp) |
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{ |
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return !(qp->s_flags & (RVT_S_BUSY | RVT_S_ANY_WAIT_IO)) && |
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(qp->s_hdrwords || (qp->s_flags & RVT_S_RESP_PENDING) || |
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!(qp->s_flags & RVT_S_ANY_WAIT_SEND)); |
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} |
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bool _qib_schedule_send(struct rvt_qp *qp); |
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bool qib_schedule_send(struct rvt_qp *qp); |
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static inline int qib_pkey_ok(u16 pkey1, u16 pkey2) |
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{ |
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u16 p1 = pkey1 & 0x7FFF; |
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u16 p2 = pkey2 & 0x7FFF; |
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/* |
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* Low 15 bits must be non-zero and match, and |
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* one of the two must be a full member. |
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*/ |
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return p1 && p1 == p2 && ((__s16)pkey1 < 0 || (__s16)pkey2 < 0); |
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} |
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void qib_bad_pkey(struct qib_ibport *ibp, u32 key, u32 sl, |
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u32 qp1, u32 qp2, __be16 lid1, __be16 lid2); |
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void qib_cap_mask_chg(struct rvt_dev_info *rdi, u32 port_num); |
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void qib_sys_guid_chg(struct qib_ibport *ibp); |
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void qib_node_desc_chg(struct qib_ibport *ibp); |
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int qib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, |
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const struct ib_wc *in_wc, const struct ib_grh *in_grh, |
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const struct ib_mad *in, struct ib_mad *out, |
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size_t *out_mad_size, u16 *out_mad_pkey_index); |
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void qib_notify_create_mad_agent(struct rvt_dev_info *rdi, int port_idx); |
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void qib_notify_free_mad_agent(struct rvt_dev_info *rdi, int port_idx); |
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/* |
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* Compare the lower 24 bits of the two values. |
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* Returns an integer <, ==, or > than zero. |
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*/ |
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static inline int qib_cmp24(u32 a, u32 b) |
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{ |
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return (((int) a) - ((int) b)) << 8; |
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} |
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int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords, |
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u64 *rwords, u64 *spkts, u64 *rpkts, |
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u64 *xmit_wait); |
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int qib_get_counters(struct qib_pportdata *ppd, |
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struct qib_verbs_counters *cntrs); |
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/* |
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* Functions provided by qib driver for rdmavt to use |
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*/ |
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unsigned qib_free_all_qps(struct rvt_dev_info *rdi); |
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void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp); |
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void qib_qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp); |
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void qib_notify_qp_reset(struct rvt_qp *qp); |
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int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt, |
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enum ib_qp_type type, u32 port); |
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void qib_restart_rc(struct rvt_qp *qp, u32 psn, int wait); |
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#ifdef CONFIG_DEBUG_FS |
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void qib_qp_iter_print(struct seq_file *s, struct rvt_qp_iter *iter); |
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#endif |
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unsigned qib_pkt_delay(u32 plen, u8 snd_mult, u8 rcv_mult); |
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void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail); |
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void qib_put_txreq(struct qib_verbs_txreq *tx); |
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int qib_verbs_send(struct rvt_qp *qp, struct ib_header *hdr, |
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u32 hdrwords, struct rvt_sge_state *ss, u32 len); |
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void qib_uc_rcv(struct qib_ibport *ibp, struct ib_header *hdr, |
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int has_grh, void *data, u32 tlen, struct rvt_qp *qp); |
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void qib_rc_rcv(struct qib_ctxtdata *rcd, struct ib_header *hdr, |
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int has_grh, void *data, u32 tlen, struct rvt_qp *qp); |
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int qib_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr); |
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int qib_check_send_wqe(struct rvt_qp *qp, struct rvt_swqe *wqe, |
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bool *call_send); |
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struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid); |
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void qib_rc_rnr_retry(unsigned long arg); |
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void qib_rc_send_complete(struct rvt_qp *qp, struct ib_header *hdr); |
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int qib_post_ud_send(struct rvt_qp *qp, const struct ib_send_wr *wr); |
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void qib_ud_rcv(struct qib_ibport *ibp, struct ib_header *hdr, |
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int has_grh, void *data, u32 tlen, struct rvt_qp *qp); |
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void mr_rcu_callback(struct rcu_head *list); |
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void qib_migrate_qp(struct rvt_qp *qp); |
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int qib_ruc_check_hdr(struct qib_ibport *ibp, struct ib_header *hdr, |
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int has_grh, struct rvt_qp *qp, u32 bth0); |
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u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr, |
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const struct ib_global_route *grh, u32 hwords, u32 nwords); |
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void qib_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr, |
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u32 bth0, u32 bth2); |
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void _qib_do_send(struct work_struct *work); |
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void qib_do_send(struct rvt_qp *qp); |
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void qib_send_rc_ack(struct rvt_qp *qp); |
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int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags); |
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int qib_make_uc_req(struct rvt_qp *qp, unsigned long *flags); |
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int qib_make_ud_req(struct rvt_qp *qp, unsigned long *flags); |
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int qib_register_ib_device(struct qib_devdata *); |
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void qib_unregister_ib_device(struct qib_devdata *); |
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void qib_ib_rcv(struct qib_ctxtdata *, void *, void *, u32); |
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void qib_ib_piobufavail(struct qib_devdata *); |
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unsigned qib_get_npkeys(struct qib_devdata *); |
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unsigned qib_get_pkey(struct qib_ibport *, unsigned); |
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extern const enum ib_wc_opcode ib_qib_wc_opcode[]; |
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/* |
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* Below HCA-independent IB PhysPortState values, returned |
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* by the f_ibphys_portstate() routine. |
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*/ |
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#define IB_PHYSPORTSTATE_SLEEP 1 |
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#define IB_PHYSPORTSTATE_POLL 2 |
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#define IB_PHYSPORTSTATE_DISABLED 3 |
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#define IB_PHYSPORTSTATE_CFG_TRAIN 4 |
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#define IB_PHYSPORTSTATE_LINKUP 5 |
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#define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6 |
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#define IB_PHYSPORTSTATE_CFG_DEBOUNCE 8 |
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#define IB_PHYSPORTSTATE_CFG_IDLE 0xB |
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#define IB_PHYSPORTSTATE_RECOVERY_RETRAIN 0xC |
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#define IB_PHYSPORTSTATE_RECOVERY_WAITRMT 0xE |
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#define IB_PHYSPORTSTATE_RECOVERY_IDLE 0xF |
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#define IB_PHYSPORTSTATE_CFG_ENH 0x10 |
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#define IB_PHYSPORTSTATE_CFG_WAIT_ENH 0x13 |
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extern const int ib_rvt_state_ops[]; |
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extern __be64 ib_qib_sys_image_guid; /* in network order */ |
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extern unsigned int ib_rvt_lkey_table_size; |
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extern unsigned int ib_qib_max_cqes; |
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extern unsigned int ib_qib_max_cqs; |
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extern unsigned int ib_qib_max_qp_wrs; |
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extern unsigned int ib_qib_max_qps; |
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extern unsigned int ib_qib_max_sges; |
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extern unsigned int ib_qib_max_mcast_grps; |
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extern unsigned int ib_qib_max_mcast_qp_attached; |
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extern unsigned int ib_qib_max_srqs; |
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extern unsigned int ib_qib_max_srq_sges; |
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extern unsigned int ib_qib_max_srq_wrs; |
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extern const u32 ib_qib_rnr_table[]; |
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extern const struct rvt_operation_params qib_post_parms[]; |
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#endif /* QIB_VERBS_H */
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