415 lines
13 KiB
C
415 lines
13 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2012 - 2017 Intel Corporation. All rights reserved.
|
||
|
|
* Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
|
||
|
|
* Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* This software is available to you under a choice of one of two
|
||
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
||
|
|
* General Public License (GPL) Version 2, available from the file
|
||
|
|
* COPYING in the main directory of this source tree, or the
|
||
|
|
* OpenIB.org BSD license below:
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or
|
||
|
|
* without modification, are permitted provided that the following
|
||
|
|
* conditions are met:
|
||
|
|
*
|
||
|
|
* - Redistributions of source code must retain the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer.
|
||
|
|
*
|
||
|
|
* - Redistributions in binary form must reproduce the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer in the documentation and/or other materials
|
||
|
|
* provided with the distribution.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
* SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef QIB_VERBS_H
|
||
|
|
#define QIB_VERBS_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/spinlock.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
#include <linux/kref.h>
|
||
|
|
#include <linux/workqueue.h>
|
||
|
|
#include <linux/kthread.h>
|
||
|
|
#include <linux/completion.h>
|
||
|
|
#include <rdma/ib_pack.h>
|
||
|
|
#include <rdma/ib_user_verbs.h>
|
||
|
|
#include <rdma/ib_hdrs.h>
|
||
|
|
#include <rdma/rdma_vt.h>
|
||
|
|
#include <rdma/rdmavt_cq.h>
|
||
|
|
|
||
|
|
struct qib_ctxtdata;
|
||
|
|
struct qib_pportdata;
|
||
|
|
struct qib_devdata;
|
||
|
|
struct qib_verbs_txreq;
|
||
|
|
|
||
|
|
#define QIB_MAX_RDMA_ATOMIC 16
|
||
|
|
#define QIB_GUIDS_PER_PORT 5
|
||
|
|
#define QIB_PSN_SHIFT 8
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Increment this value if any changes that break userspace ABI
|
||
|
|
* compatibility are made.
|
||
|
|
*/
|
||
|
|
#define QIB_UVERBS_ABI_VERSION 2
|
||
|
|
|
||
|
|
/* IB Performance Manager status values */
|
||
|
|
#define IB_PMA_SAMPLE_STATUS_DONE 0x00
|
||
|
|
#define IB_PMA_SAMPLE_STATUS_STARTED 0x01
|
||
|
|
#define IB_PMA_SAMPLE_STATUS_RUNNING 0x02
|
||
|
|
|
||
|
|
/* Mandatory IB performance counter select values. */
|
||
|
|
#define IB_PMA_PORT_XMIT_DATA cpu_to_be16(0x0001)
|
||
|
|
#define IB_PMA_PORT_RCV_DATA cpu_to_be16(0x0002)
|
||
|
|
#define IB_PMA_PORT_XMIT_PKTS cpu_to_be16(0x0003)
|
||
|
|
#define IB_PMA_PORT_RCV_PKTS cpu_to_be16(0x0004)
|
||
|
|
#define IB_PMA_PORT_XMIT_WAIT cpu_to_be16(0x0005)
|
||
|
|
|
||
|
|
#define QIB_VENDOR_IPG cpu_to_be16(0xFFA0)
|
||
|
|
|
||
|
|
/* XXX Should be defined in ib_verbs.h enum ib_port_cap_flags */
|
||
|
|
#define IB_PORT_OTHER_LOCAL_CHANGES_SUP (1 << 26)
|
||
|
|
|
||
|
|
#define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL)
|
||
|
|
|
||
|
|
/* Values for set/get portinfo VLCap OperationalVLs */
|
||
|
|
#define IB_VL_VL0 1
|
||
|
|
#define IB_VL_VL0_1 2
|
||
|
|
#define IB_VL_VL0_3 3
|
||
|
|
#define IB_VL_VL0_7 4
|
||
|
|
#define IB_VL_VL0_14 5
|
||
|
|
|
||
|
|
static inline int qib_num_vls(int vls)
|
||
|
|
{
|
||
|
|
switch (vls) {
|
||
|
|
default:
|
||
|
|
case IB_VL_VL0:
|
||
|
|
return 1;
|
||
|
|
case IB_VL_VL0_1:
|
||
|
|
return 2;
|
||
|
|
case IB_VL_VL0_3:
|
||
|
|
return 4;
|
||
|
|
case IB_VL_VL0_7:
|
||
|
|
return 8;
|
||
|
|
case IB_VL_VL0_14:
|
||
|
|
return 15;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
struct qib_pio_header {
|
||
|
|
__le32 pbc[2];
|
||
|
|
struct ib_header hdr;
|
||
|
|
} __packed;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* qib specific data structure that will be hidden from rvt after the queue pair
|
||
|
|
* is made common.
|
||
|
|
*/
|
||
|
|
struct qib_qp_priv {
|
||
|
|
struct ib_header *s_hdr; /* next packet header to send */
|
||
|
|
struct list_head iowait; /* link for wait PIO buf */
|
||
|
|
atomic_t s_dma_busy;
|
||
|
|
struct qib_verbs_txreq *s_tx;
|
||
|
|
struct work_struct s_work;
|
||
|
|
wait_queue_head_t wait_dma;
|
||
|
|
struct rvt_qp *owner;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define QIB_PSN_CREDIT 16
|
||
|
|
|
||
|
|
struct qib_opcode_stats {
|
||
|
|
u64 n_packets; /* number of packets */
|
||
|
|
u64 n_bytes; /* total number of bytes */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qib_opcode_stats_perctx {
|
||
|
|
struct qib_opcode_stats stats[128];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qib_pma_counters {
|
||
|
|
u64 n_unicast_xmit; /* total unicast packets sent */
|
||
|
|
u64 n_unicast_rcv; /* total unicast packets received */
|
||
|
|
u64 n_multicast_xmit; /* total multicast packets sent */
|
||
|
|
u64 n_multicast_rcv; /* total multicast packets received */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qib_ibport {
|
||
|
|
struct rvt_ibport rvp;
|
||
|
|
struct rvt_ah *smi_ah;
|
||
|
|
__be64 guids[QIB_GUIDS_PER_PORT - 1]; /* writable GUIDs */
|
||
|
|
struct qib_pma_counters __percpu *pmastats;
|
||
|
|
u64 z_unicast_xmit; /* starting count for PMA */
|
||
|
|
u64 z_unicast_rcv; /* starting count for PMA */
|
||
|
|
u64 z_multicast_xmit; /* starting count for PMA */
|
||
|
|
u64 z_multicast_rcv; /* starting count for PMA */
|
||
|
|
u64 z_symbol_error_counter; /* starting count for PMA */
|
||
|
|
u64 z_link_error_recovery_counter; /* starting count for PMA */
|
||
|
|
u64 z_link_downed_counter; /* starting count for PMA */
|
||
|
|
u64 z_port_rcv_errors; /* starting count for PMA */
|
||
|
|
u64 z_port_rcv_remphys_errors; /* starting count for PMA */
|
||
|
|
u64 z_port_xmit_discards; /* starting count for PMA */
|
||
|
|
u64 z_port_xmit_data; /* starting count for PMA */
|
||
|
|
u64 z_port_rcv_data; /* starting count for PMA */
|
||
|
|
u64 z_port_xmit_packets; /* starting count for PMA */
|
||
|
|
u64 z_port_rcv_packets; /* starting count for PMA */
|
||
|
|
u32 z_local_link_integrity_errors; /* starting count for PMA */
|
||
|
|
u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */
|
||
|
|
u32 z_vl15_dropped; /* starting count for PMA */
|
||
|
|
u8 sl_to_vl[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qib_ibdev {
|
||
|
|
struct rvt_dev_info rdi;
|
||
|
|
|
||
|
|
struct list_head piowait; /* list for wait PIO buf */
|
||
|
|
struct list_head dmawait; /* list for wait DMA */
|
||
|
|
struct list_head txwait; /* list for wait qib_verbs_txreq */
|
||
|
|
struct list_head memwait; /* list for wait kernel memory */
|
||
|
|
struct list_head txreq_free;
|
||
|
|
struct timer_list mem_timer;
|
||
|
|
struct qib_pio_header *pio_hdrs;
|
||
|
|
dma_addr_t pio_hdrs_phys;
|
||
|
|
u32 qp_rnd; /* random bytes for hash */
|
||
|
|
|
||
|
|
u32 n_piowait;
|
||
|
|
u32 n_txwait;
|
||
|
|
|
||
|
|
#ifdef CONFIG_DEBUG_FS
|
||
|
|
/* per HCA debugfs */
|
||
|
|
struct dentry *qib_ibdev_dbg;
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qib_verbs_counters {
|
||
|
|
u64 symbol_error_counter;
|
||
|
|
u64 link_error_recovery_counter;
|
||
|
|
u64 link_downed_counter;
|
||
|
|
u64 port_rcv_errors;
|
||
|
|
u64 port_rcv_remphys_errors;
|
||
|
|
u64 port_xmit_discards;
|
||
|
|
u64 port_xmit_data;
|
||
|
|
u64 port_rcv_data;
|
||
|
|
u64 port_xmit_packets;
|
||
|
|
u64 port_rcv_packets;
|
||
|
|
u32 local_link_integrity_errors;
|
||
|
|
u32 excessive_buffer_overrun_errors;
|
||
|
|
u32 vl15_dropped;
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline struct qib_ibdev *to_idev(struct ib_device *ibdev)
|
||
|
|
{
|
||
|
|
struct rvt_dev_info *rdi;
|
||
|
|
|
||
|
|
rdi = container_of(ibdev, struct rvt_dev_info, ibdev);
|
||
|
|
return container_of(rdi, struct qib_ibdev, rdi);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Send if not busy or waiting for I/O and either
|
||
|
|
* a RC response is pending or we can process send work requests.
|
||
|
|
*/
|
||
|
|
static inline int qib_send_ok(struct rvt_qp *qp)
|
||
|
|
{
|
||
|
|
return !(qp->s_flags & (RVT_S_BUSY | RVT_S_ANY_WAIT_IO)) &&
|
||
|
|
(qp->s_hdrwords || (qp->s_flags & RVT_S_RESP_PENDING) ||
|
||
|
|
!(qp->s_flags & RVT_S_ANY_WAIT_SEND));
|
||
|
|
}
|
||
|
|
|
||
|
|
void _qib_schedule_send(struct rvt_qp *qp);
|
||
|
|
void qib_schedule_send(struct rvt_qp *qp);
|
||
|
|
|
||
|
|
static inline int qib_pkey_ok(u16 pkey1, u16 pkey2)
|
||
|
|
{
|
||
|
|
u16 p1 = pkey1 & 0x7FFF;
|
||
|
|
u16 p2 = pkey2 & 0x7FFF;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Low 15 bits must be non-zero and match, and
|
||
|
|
* one of the two must be a full member.
|
||
|
|
*/
|
||
|
|
return p1 && p1 == p2 && ((__s16)pkey1 < 0 || (__s16)pkey2 < 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void qib_bad_pkey(struct qib_ibport *ibp, u32 key, u32 sl,
|
||
|
|
u32 qp1, u32 qp2, __be16 lid1, __be16 lid2);
|
||
|
|
void qib_cap_mask_chg(struct rvt_dev_info *rdi, u8 port_num);
|
||
|
|
void qib_sys_guid_chg(struct qib_ibport *ibp);
|
||
|
|
void qib_node_desc_chg(struct qib_ibport *ibp);
|
||
|
|
int qib_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);
|
||
|
|
void qib_notify_create_mad_agent(struct rvt_dev_info *rdi, int port_idx);
|
||
|
|
void qib_notify_free_mad_agent(struct rvt_dev_info *rdi, int port_idx);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Compare the lower 24 bits of the two values.
|
||
|
|
* Returns an integer <, ==, or > than zero.
|
||
|
|
*/
|
||
|
|
static inline int qib_cmp24(u32 a, u32 b)
|
||
|
|
{
|
||
|
|
return (((int) a) - ((int) b)) << 8;
|
||
|
|
}
|
||
|
|
|
||
|
|
int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords,
|
||
|
|
u64 *rwords, u64 *spkts, u64 *rpkts,
|
||
|
|
u64 *xmit_wait);
|
||
|
|
|
||
|
|
int qib_get_counters(struct qib_pportdata *ppd,
|
||
|
|
struct qib_verbs_counters *cntrs);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Functions provided by qib driver for rdmavt to use
|
||
|
|
*/
|
||
|
|
unsigned qib_free_all_qps(struct rvt_dev_info *rdi);
|
||
|
|
void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp);
|
||
|
|
void qib_qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp);
|
||
|
|
void qib_notify_qp_reset(struct rvt_qp *qp);
|
||
|
|
int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
|
||
|
|
enum ib_qp_type type, u8 port);
|
||
|
|
void qib_restart_rc(struct rvt_qp *qp, u32 psn, int wait);
|
||
|
|
#ifdef CONFIG_DEBUG_FS
|
||
|
|
|
||
|
|
void qib_qp_iter_print(struct seq_file *s, struct rvt_qp_iter *iter);
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
unsigned qib_pkt_delay(u32 plen, u8 snd_mult, u8 rcv_mult);
|
||
|
|
|
||
|
|
void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail);
|
||
|
|
|
||
|
|
void qib_put_txreq(struct qib_verbs_txreq *tx);
|
||
|
|
|
||
|
|
int qib_verbs_send(struct rvt_qp *qp, struct ib_header *hdr,
|
||
|
|
u32 hdrwords, struct rvt_sge_state *ss, u32 len);
|
||
|
|
|
||
|
|
void qib_copy_sge(struct rvt_sge_state *ss, void *data, u32 length,
|
||
|
|
int release);
|
||
|
|
|
||
|
|
void qib_uc_rcv(struct qib_ibport *ibp, struct ib_header *hdr,
|
||
|
|
int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
|
||
|
|
|
||
|
|
void qib_rc_rcv(struct qib_ctxtdata *rcd, struct ib_header *hdr,
|
||
|
|
int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
|
||
|
|
|
||
|
|
int qib_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr);
|
||
|
|
|
||
|
|
int qib_check_send_wqe(struct rvt_qp *qp, struct rvt_swqe *wqe);
|
||
|
|
|
||
|
|
struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid);
|
||
|
|
|
||
|
|
void qib_rc_rnr_retry(unsigned long arg);
|
||
|
|
|
||
|
|
void qib_rc_send_complete(struct rvt_qp *qp, struct ib_header *hdr);
|
||
|
|
|
||
|
|
int qib_post_ud_send(struct rvt_qp *qp, struct ib_send_wr *wr);
|
||
|
|
|
||
|
|
void qib_ud_rcv(struct qib_ibport *ibp, struct ib_header *hdr,
|
||
|
|
int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
|
||
|
|
|
||
|
|
void mr_rcu_callback(struct rcu_head *list);
|
||
|
|
|
||
|
|
int qib_get_rwqe(struct rvt_qp *qp, int wr_id_only);
|
||
|
|
|
||
|
|
void qib_migrate_qp(struct rvt_qp *qp);
|
||
|
|
|
||
|
|
int qib_ruc_check_hdr(struct qib_ibport *ibp, struct ib_header *hdr,
|
||
|
|
int has_grh, struct rvt_qp *qp, u32 bth0);
|
||
|
|
|
||
|
|
u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr,
|
||
|
|
const struct ib_global_route *grh, u32 hwords, u32 nwords);
|
||
|
|
|
||
|
|
void qib_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr,
|
||
|
|
u32 bth0, u32 bth2);
|
||
|
|
|
||
|
|
void _qib_do_send(struct work_struct *work);
|
||
|
|
|
||
|
|
void qib_do_send(struct rvt_qp *qp);
|
||
|
|
|
||
|
|
void qib_send_complete(struct rvt_qp *qp, struct rvt_swqe *wqe,
|
||
|
|
enum ib_wc_status status);
|
||
|
|
|
||
|
|
void qib_send_rc_ack(struct rvt_qp *qp);
|
||
|
|
|
||
|
|
int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags);
|
||
|
|
|
||
|
|
int qib_make_uc_req(struct rvt_qp *qp, unsigned long *flags);
|
||
|
|
|
||
|
|
int qib_make_ud_req(struct rvt_qp *qp, unsigned long *flags);
|
||
|
|
|
||
|
|
int qib_register_ib_device(struct qib_devdata *);
|
||
|
|
|
||
|
|
void qib_unregister_ib_device(struct qib_devdata *);
|
||
|
|
|
||
|
|
void qib_ib_rcv(struct qib_ctxtdata *, void *, void *, u32);
|
||
|
|
|
||
|
|
void qib_ib_piobufavail(struct qib_devdata *);
|
||
|
|
|
||
|
|
unsigned qib_get_npkeys(struct qib_devdata *);
|
||
|
|
|
||
|
|
unsigned qib_get_pkey(struct qib_ibport *, unsigned);
|
||
|
|
|
||
|
|
extern const enum ib_wc_opcode ib_qib_wc_opcode[];
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Below HCA-independent IB PhysPortState values, returned
|
||
|
|
* by the f_ibphys_portstate() routine.
|
||
|
|
*/
|
||
|
|
#define IB_PHYSPORTSTATE_SLEEP 1
|
||
|
|
#define IB_PHYSPORTSTATE_POLL 2
|
||
|
|
#define IB_PHYSPORTSTATE_DISABLED 3
|
||
|
|
#define IB_PHYSPORTSTATE_CFG_TRAIN 4
|
||
|
|
#define IB_PHYSPORTSTATE_LINKUP 5
|
||
|
|
#define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6
|
||
|
|
#define IB_PHYSPORTSTATE_CFG_DEBOUNCE 8
|
||
|
|
#define IB_PHYSPORTSTATE_CFG_IDLE 0xB
|
||
|
|
#define IB_PHYSPORTSTATE_RECOVERY_RETRAIN 0xC
|
||
|
|
#define IB_PHYSPORTSTATE_RECOVERY_WAITRMT 0xE
|
||
|
|
#define IB_PHYSPORTSTATE_RECOVERY_IDLE 0xF
|
||
|
|
#define IB_PHYSPORTSTATE_CFG_ENH 0x10
|
||
|
|
#define IB_PHYSPORTSTATE_CFG_WAIT_ENH 0x13
|
||
|
|
|
||
|
|
extern const int ib_rvt_state_ops[];
|
||
|
|
|
||
|
|
extern __be64 ib_qib_sys_image_guid; /* in network order */
|
||
|
|
|
||
|
|
extern unsigned int ib_rvt_lkey_table_size;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_cqes;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_cqs;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_qp_wrs;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_qps;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_sges;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_mcast_grps;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_mcast_qp_attached;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_srqs;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_srq_sges;
|
||
|
|
|
||
|
|
extern unsigned int ib_qib_max_srq_wrs;
|
||
|
|
|
||
|
|
extern const u32 ib_qib_rnr_table[];
|
||
|
|
|
||
|
|
extern const struct rvt_operation_params qib_post_parms[];
|
||
|
|
|
||
|
|
#endif /* QIB_VERBS_H */
|