mirror of https://gitee.com/openkylin/linux.git
1061 lines
27 KiB
C
1061 lines
27 KiB
C
/*
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* Copyright (c) 2009-2010 Chelsio, 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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* - 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 __IW_CXGB4_H__
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#define __IW_CXGB4_H__
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/xarray.h>
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#include <linux/completion.h>
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#include <linux/netdevice.h>
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#include <linux/sched/mm.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/inet.h>
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#include <linux/wait.h>
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#include <linux/kref.h>
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#include <linux/timer.h>
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#include <linux/io.h>
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#include <linux/workqueue.h>
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#include <asm/byteorder.h>
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#include <net/net_namespace.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/iw_cm.h>
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#include <rdma/rdma_netlink.h>
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#include <rdma/iw_portmap.h>
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#include <rdma/restrack.h>
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#include "cxgb4.h"
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#include "cxgb4_uld.h"
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#include "l2t.h"
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#include <rdma/cxgb4-abi.h>
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#define DRV_NAME "iw_cxgb4"
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#define MOD DRV_NAME ":"
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#ifdef pr_fmt
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#undef pr_fmt
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#endif
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include "t4.h"
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#define PBL_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->pbl.start)
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#define RQT_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->rq.start)
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static inline void *cplhdr(struct sk_buff *skb)
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{
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return skb->data;
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}
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#define C4IW_ID_TABLE_F_RANDOM 1 /* Pseudo-randomize the id's returned */
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#define C4IW_ID_TABLE_F_EMPTY 2 /* Table is initially empty */
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struct c4iw_id_table {
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u32 flags;
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u32 start; /* logical minimal id */
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u32 last; /* hint for find */
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u32 max;
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spinlock_t lock;
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unsigned long *table;
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};
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struct c4iw_resource {
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struct c4iw_id_table tpt_table;
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struct c4iw_id_table qid_table;
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struct c4iw_id_table pdid_table;
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struct c4iw_id_table srq_table;
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};
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struct c4iw_qid_list {
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struct list_head entry;
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u32 qid;
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};
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struct c4iw_dev_ucontext {
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struct list_head qpids;
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struct list_head cqids;
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struct mutex lock;
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struct kref kref;
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};
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enum c4iw_rdev_flags {
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T4_FATAL_ERROR = (1<<0),
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T4_STATUS_PAGE_DISABLED = (1<<1),
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};
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struct c4iw_stat {
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u64 total;
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u64 cur;
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u64 max;
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u64 fail;
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};
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struct c4iw_stats {
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struct mutex lock;
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struct c4iw_stat qid;
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struct c4iw_stat pd;
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struct c4iw_stat stag;
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struct c4iw_stat pbl;
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struct c4iw_stat rqt;
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struct c4iw_stat srqt;
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struct c4iw_stat srq;
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struct c4iw_stat ocqp;
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u64 db_full;
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u64 db_empty;
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u64 db_drop;
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u64 db_state_transitions;
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u64 db_fc_interruptions;
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u64 tcam_full;
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u64 act_ofld_conn_fails;
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u64 pas_ofld_conn_fails;
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u64 neg_adv;
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};
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struct c4iw_hw_queue {
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int t4_eq_status_entries;
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int t4_max_eq_size;
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int t4_max_iq_size;
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int t4_max_rq_size;
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int t4_max_sq_size;
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int t4_max_qp_depth;
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int t4_max_cq_depth;
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int t4_stat_len;
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};
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struct wr_log_entry {
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ktime_t post_host_time;
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ktime_t poll_host_time;
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u64 post_sge_ts;
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u64 cqe_sge_ts;
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u64 poll_sge_ts;
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u16 qid;
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u16 wr_id;
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u8 opcode;
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u8 valid;
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};
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struct c4iw_rdev {
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struct c4iw_resource resource;
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u32 qpmask;
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u32 cqmask;
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struct c4iw_dev_ucontext uctx;
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struct gen_pool *pbl_pool;
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struct gen_pool *rqt_pool;
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struct gen_pool *ocqp_pool;
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u32 flags;
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struct cxgb4_lld_info lldi;
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unsigned long bar2_pa;
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void __iomem *bar2_kva;
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unsigned long oc_mw_pa;
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void __iomem *oc_mw_kva;
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struct c4iw_stats stats;
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struct c4iw_hw_queue hw_queue;
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struct t4_dev_status_page *status_page;
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atomic_t wr_log_idx;
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struct wr_log_entry *wr_log;
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int wr_log_size;
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struct workqueue_struct *free_workq;
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struct completion rqt_compl;
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struct completion pbl_compl;
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struct kref rqt_kref;
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struct kref pbl_kref;
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};
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static inline int c4iw_fatal_error(struct c4iw_rdev *rdev)
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{
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return rdev->flags & T4_FATAL_ERROR;
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}
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static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
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{
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return (int)(rdev->lldi.vr->stag.size >> 5);
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}
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#define C4IW_WR_TO (60*HZ)
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struct c4iw_wr_wait {
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struct completion completion;
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int ret;
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struct kref kref;
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};
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void _c4iw_free_wr_wait(struct kref *kref);
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static inline void c4iw_put_wr_wait(struct c4iw_wr_wait *wr_waitp)
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{
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pr_debug("wr_wait %p ref before put %u\n", wr_waitp,
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kref_read(&wr_waitp->kref));
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WARN_ON(kref_read(&wr_waitp->kref) == 0);
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kref_put(&wr_waitp->kref, _c4iw_free_wr_wait);
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}
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static inline void c4iw_get_wr_wait(struct c4iw_wr_wait *wr_waitp)
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{
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pr_debug("wr_wait %p ref before get %u\n", wr_waitp,
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kref_read(&wr_waitp->kref));
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WARN_ON(kref_read(&wr_waitp->kref) == 0);
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kref_get(&wr_waitp->kref);
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}
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static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
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{
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wr_waitp->ret = 0;
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init_completion(&wr_waitp->completion);
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}
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static inline void _c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret,
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bool deref)
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{
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wr_waitp->ret = ret;
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complete(&wr_waitp->completion);
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if (deref)
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c4iw_put_wr_wait(wr_waitp);
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}
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static inline void c4iw_wake_up_noref(struct c4iw_wr_wait *wr_waitp, int ret)
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{
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_c4iw_wake_up(wr_waitp, ret, false);
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}
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static inline void c4iw_wake_up_deref(struct c4iw_wr_wait *wr_waitp, int ret)
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{
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_c4iw_wake_up(wr_waitp, ret, true);
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}
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static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
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struct c4iw_wr_wait *wr_waitp,
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u32 hwtid, u32 qpid,
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const char *func)
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{
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int ret;
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if (c4iw_fatal_error(rdev)) {
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wr_waitp->ret = -EIO;
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goto out;
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}
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ret = wait_for_completion_timeout(&wr_waitp->completion, C4IW_WR_TO);
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if (!ret) {
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pr_err("%s - Device %s not responding (disabling device) - tid %u qpid %u\n",
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func, pci_name(rdev->lldi.pdev), hwtid, qpid);
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rdev->flags |= T4_FATAL_ERROR;
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wr_waitp->ret = -EIO;
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goto out;
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}
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if (wr_waitp->ret)
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pr_debug("%s: FW reply %d tid %u qpid %u\n",
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pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
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out:
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return wr_waitp->ret;
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}
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int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
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static inline int c4iw_ref_send_wait(struct c4iw_rdev *rdev,
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struct sk_buff *skb,
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struct c4iw_wr_wait *wr_waitp,
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u32 hwtid, u32 qpid,
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const char *func)
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{
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int ret;
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pr_debug("%s wr_wait %p hwtid %u qpid %u\n", func, wr_waitp, hwtid,
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qpid);
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c4iw_get_wr_wait(wr_waitp);
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ret = c4iw_ofld_send(rdev, skb);
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if (ret) {
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c4iw_put_wr_wait(wr_waitp);
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return ret;
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}
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return c4iw_wait_for_reply(rdev, wr_waitp, hwtid, qpid, func);
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}
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enum db_state {
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NORMAL = 0,
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FLOW_CONTROL = 1,
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RECOVERY = 2,
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STOPPED = 3
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};
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struct c4iw_dev {
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struct ib_device ibdev;
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struct c4iw_rdev rdev;
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u32 device_cap_flags;
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struct xarray cqs;
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struct xarray qps;
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struct xarray mrs;
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struct mutex db_mutex;
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struct dentry *debugfs_root;
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enum db_state db_state;
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struct xarray hwtids;
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struct xarray atids;
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struct xarray stids;
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struct list_head db_fc_list;
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u32 avail_ird;
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wait_queue_head_t wait;
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};
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struct uld_ctx {
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struct list_head entry;
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struct cxgb4_lld_info lldi;
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struct c4iw_dev *dev;
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struct work_struct reg_work;
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};
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static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
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{
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return container_of(ibdev, struct c4iw_dev, ibdev);
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}
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static inline struct c4iw_dev *rdev_to_c4iw_dev(struct c4iw_rdev *rdev)
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{
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return container_of(rdev, struct c4iw_dev, rdev);
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}
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static inline struct c4iw_cq *get_chp(struct c4iw_dev *rhp, u32 cqid)
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{
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return xa_load(&rhp->cqs, cqid);
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}
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static inline struct c4iw_qp *get_qhp(struct c4iw_dev *rhp, u32 qpid)
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{
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return xa_load(&rhp->qps, qpid);
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}
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extern uint c4iw_max_read_depth;
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static inline int cur_max_read_depth(struct c4iw_dev *dev)
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{
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return min(dev->rdev.lldi.max_ordird_qp, c4iw_max_read_depth);
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}
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struct c4iw_pd {
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struct ib_pd ibpd;
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u32 pdid;
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struct c4iw_dev *rhp;
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};
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static inline struct c4iw_pd *to_c4iw_pd(struct ib_pd *ibpd)
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{
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return container_of(ibpd, struct c4iw_pd, ibpd);
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}
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struct tpt_attributes {
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u64 len;
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u64 va_fbo;
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enum fw_ri_mem_perms perms;
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u32 stag;
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u32 pdid;
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u32 qpid;
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u32 pbl_addr;
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u32 pbl_size;
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u32 state:1;
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u32 type:2;
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u32 rsvd:1;
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u32 remote_invaliate_disable:1;
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u32 zbva:1;
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u32 mw_bind_enable:1;
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u32 page_size:5;
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};
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struct c4iw_mr {
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struct ib_mr ibmr;
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struct ib_umem *umem;
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struct c4iw_dev *rhp;
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struct sk_buff *dereg_skb;
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u64 kva;
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struct tpt_attributes attr;
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u64 *mpl;
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dma_addr_t mpl_addr;
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u32 max_mpl_len;
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u32 mpl_len;
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struct c4iw_wr_wait *wr_waitp;
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};
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static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr)
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{
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return container_of(ibmr, struct c4iw_mr, ibmr);
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}
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struct c4iw_mw {
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struct ib_mw ibmw;
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struct c4iw_dev *rhp;
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struct sk_buff *dereg_skb;
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u64 kva;
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struct tpt_attributes attr;
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struct c4iw_wr_wait *wr_waitp;
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};
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static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw)
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{
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return container_of(ibmw, struct c4iw_mw, ibmw);
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}
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struct c4iw_cq {
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struct ib_cq ibcq;
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struct c4iw_dev *rhp;
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struct sk_buff *destroy_skb;
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struct t4_cq cq;
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spinlock_t lock;
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spinlock_t comp_handler_lock;
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atomic_t refcnt;
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wait_queue_head_t wait;
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struct c4iw_wr_wait *wr_waitp;
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};
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static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq)
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{
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return container_of(ibcq, struct c4iw_cq, ibcq);
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}
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struct c4iw_mpa_attributes {
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u8 initiator;
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u8 recv_marker_enabled;
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u8 xmit_marker_enabled;
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u8 crc_enabled;
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u8 enhanced_rdma_conn;
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u8 version;
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u8 p2p_type;
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};
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struct c4iw_qp_attributes {
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u32 scq;
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u32 rcq;
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u32 sq_num_entries;
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u32 rq_num_entries;
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u32 sq_max_sges;
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u32 sq_max_sges_rdma_write;
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u32 rq_max_sges;
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u32 state;
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u8 enable_rdma_read;
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u8 enable_rdma_write;
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u8 enable_bind;
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u8 enable_mmid0_fastreg;
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u32 max_ord;
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u32 max_ird;
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u32 pd;
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u32 next_state;
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char terminate_buffer[52];
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u32 terminate_msg_len;
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u8 is_terminate_local;
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struct c4iw_mpa_attributes mpa_attr;
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struct c4iw_ep *llp_stream_handle;
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u8 layer_etype;
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u8 ecode;
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u16 sq_db_inc;
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u16 rq_db_inc;
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u8 send_term;
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};
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struct c4iw_qp {
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struct ib_qp ibqp;
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struct list_head db_fc_entry;
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struct c4iw_dev *rhp;
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struct c4iw_ep *ep;
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struct c4iw_qp_attributes attr;
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struct t4_wq wq;
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|
spinlock_t lock;
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|
struct mutex mutex;
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|
wait_queue_head_t wait;
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int sq_sig_all;
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struct c4iw_srq *srq;
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struct c4iw_ucontext *ucontext;
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struct c4iw_wr_wait *wr_waitp;
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struct completion qp_rel_comp;
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refcount_t qp_refcnt;
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};
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|
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static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
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{
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return container_of(ibqp, struct c4iw_qp, ibqp);
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}
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|
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struct c4iw_srq {
|
|
struct ib_srq ibsrq;
|
|
struct list_head db_fc_entry;
|
|
struct c4iw_dev *rhp;
|
|
struct t4_srq wq;
|
|
struct sk_buff *destroy_skb;
|
|
u32 srq_limit;
|
|
u32 pdid;
|
|
int idx;
|
|
u32 flags;
|
|
spinlock_t lock; /* protects srq */
|
|
struct c4iw_wr_wait *wr_waitp;
|
|
bool armed;
|
|
};
|
|
|
|
static inline struct c4iw_srq *to_c4iw_srq(struct ib_srq *ibsrq)
|
|
{
|
|
return container_of(ibsrq, struct c4iw_srq, ibsrq);
|
|
}
|
|
|
|
struct c4iw_ucontext {
|
|
struct ib_ucontext ibucontext;
|
|
struct c4iw_dev_ucontext uctx;
|
|
u32 key;
|
|
spinlock_t mmap_lock;
|
|
struct list_head mmaps;
|
|
bool is_32b_cqe;
|
|
};
|
|
|
|
static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c)
|
|
{
|
|
return container_of(c, struct c4iw_ucontext, ibucontext);
|
|
}
|
|
|
|
struct c4iw_mm_entry {
|
|
struct list_head entry;
|
|
u64 addr;
|
|
u32 key;
|
|
unsigned len;
|
|
};
|
|
|
|
static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext,
|
|
u32 key, unsigned len)
|
|
{
|
|
struct list_head *pos, *nxt;
|
|
struct c4iw_mm_entry *mm;
|
|
|
|
spin_lock(&ucontext->mmap_lock);
|
|
list_for_each_safe(pos, nxt, &ucontext->mmaps) {
|
|
|
|
mm = list_entry(pos, struct c4iw_mm_entry, entry);
|
|
if (mm->key == key && mm->len == len) {
|
|
list_del_init(&mm->entry);
|
|
spin_unlock(&ucontext->mmap_lock);
|
|
pr_debug("key 0x%x addr 0x%llx len %d\n", key,
|
|
(unsigned long long)mm->addr, mm->len);
|
|
return mm;
|
|
}
|
|
}
|
|
spin_unlock(&ucontext->mmap_lock);
|
|
return NULL;
|
|
}
|
|
|
|
static inline void insert_mmap(struct c4iw_ucontext *ucontext,
|
|
struct c4iw_mm_entry *mm)
|
|
{
|
|
spin_lock(&ucontext->mmap_lock);
|
|
pr_debug("key 0x%x addr 0x%llx len %d\n",
|
|
mm->key, (unsigned long long)mm->addr, mm->len);
|
|
list_add_tail(&mm->entry, &ucontext->mmaps);
|
|
spin_unlock(&ucontext->mmap_lock);
|
|
}
|
|
|
|
enum c4iw_qp_attr_mask {
|
|
C4IW_QP_ATTR_NEXT_STATE = 1 << 0,
|
|
C4IW_QP_ATTR_SQ_DB = 1<<1,
|
|
C4IW_QP_ATTR_RQ_DB = 1<<2,
|
|
C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
|
|
C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
|
|
C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
|
|
C4IW_QP_ATTR_MAX_ORD = 1 << 11,
|
|
C4IW_QP_ATTR_MAX_IRD = 1 << 12,
|
|
C4IW_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
|
|
C4IW_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
|
|
C4IW_QP_ATTR_MPA_ATTR = 1 << 24,
|
|
C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
|
|
C4IW_QP_ATTR_VALID_MODIFY = (C4IW_QP_ATTR_ENABLE_RDMA_READ |
|
|
C4IW_QP_ATTR_ENABLE_RDMA_WRITE |
|
|
C4IW_QP_ATTR_MAX_ORD |
|
|
C4IW_QP_ATTR_MAX_IRD |
|
|
C4IW_QP_ATTR_LLP_STREAM_HANDLE |
|
|
C4IW_QP_ATTR_STREAM_MSG_BUFFER |
|
|
C4IW_QP_ATTR_MPA_ATTR |
|
|
C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE)
|
|
};
|
|
|
|
int c4iw_modify_qp(struct c4iw_dev *rhp,
|
|
struct c4iw_qp *qhp,
|
|
enum c4iw_qp_attr_mask mask,
|
|
struct c4iw_qp_attributes *attrs,
|
|
int internal);
|
|
|
|
enum c4iw_qp_state {
|
|
C4IW_QP_STATE_IDLE,
|
|
C4IW_QP_STATE_RTS,
|
|
C4IW_QP_STATE_ERROR,
|
|
C4IW_QP_STATE_TERMINATE,
|
|
C4IW_QP_STATE_CLOSING,
|
|
C4IW_QP_STATE_TOT
|
|
};
|
|
|
|
static inline int c4iw_convert_state(enum ib_qp_state ib_state)
|
|
{
|
|
switch (ib_state) {
|
|
case IB_QPS_RESET:
|
|
case IB_QPS_INIT:
|
|
return C4IW_QP_STATE_IDLE;
|
|
case IB_QPS_RTS:
|
|
return C4IW_QP_STATE_RTS;
|
|
case IB_QPS_SQD:
|
|
return C4IW_QP_STATE_CLOSING;
|
|
case IB_QPS_SQE:
|
|
return C4IW_QP_STATE_TERMINATE;
|
|
case IB_QPS_ERR:
|
|
return C4IW_QP_STATE_ERROR;
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static inline int to_ib_qp_state(int c4iw_qp_state)
|
|
{
|
|
switch (c4iw_qp_state) {
|
|
case C4IW_QP_STATE_IDLE:
|
|
return IB_QPS_INIT;
|
|
case C4IW_QP_STATE_RTS:
|
|
return IB_QPS_RTS;
|
|
case C4IW_QP_STATE_CLOSING:
|
|
return IB_QPS_SQD;
|
|
case C4IW_QP_STATE_TERMINATE:
|
|
return IB_QPS_SQE;
|
|
case C4IW_QP_STATE_ERROR:
|
|
return IB_QPS_ERR;
|
|
}
|
|
return IB_QPS_ERR;
|
|
}
|
|
|
|
static inline u32 c4iw_ib_to_tpt_access(int a)
|
|
{
|
|
return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
|
|
(a & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0) |
|
|
(a & IB_ACCESS_LOCAL_WRITE ? FW_RI_MEM_ACCESS_LOCAL_WRITE : 0) |
|
|
FW_RI_MEM_ACCESS_LOCAL_READ;
|
|
}
|
|
|
|
static inline u32 c4iw_ib_to_tpt_bind_access(int acc)
|
|
{
|
|
return (acc & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
|
|
(acc & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0);
|
|
}
|
|
|
|
enum c4iw_mmid_state {
|
|
C4IW_STAG_STATE_VALID,
|
|
C4IW_STAG_STATE_INVALID
|
|
};
|
|
|
|
#define C4IW_NODE_DESC "cxgb4 Chelsio Communications"
|
|
|
|
#define MPA_KEY_REQ "MPA ID Req Frame"
|
|
#define MPA_KEY_REP "MPA ID Rep Frame"
|
|
|
|
#define MPA_MAX_PRIVATE_DATA 256
|
|
#define MPA_ENHANCED_RDMA_CONN 0x10
|
|
#define MPA_REJECT 0x20
|
|
#define MPA_CRC 0x40
|
|
#define MPA_MARKERS 0x80
|
|
#define MPA_FLAGS_MASK 0xE0
|
|
|
|
#define MPA_V2_PEER2PEER_MODEL 0x8000
|
|
#define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
|
|
#define MPA_V2_RDMA_WRITE_RTR 0x8000
|
|
#define MPA_V2_RDMA_READ_RTR 0x4000
|
|
#define MPA_V2_IRD_ORD_MASK 0x3FFF
|
|
|
|
#define c4iw_put_ep(ep) { \
|
|
pr_debug("put_ep ep %p refcnt %d\n", \
|
|
ep, kref_read(&((ep)->kref))); \
|
|
WARN_ON(kref_read(&((ep)->kref)) < 1); \
|
|
kref_put(&((ep)->kref), _c4iw_free_ep); \
|
|
}
|
|
|
|
#define c4iw_get_ep(ep) { \
|
|
pr_debug("get_ep ep %p, refcnt %d\n", \
|
|
ep, kref_read(&((ep)->kref))); \
|
|
kref_get(&((ep)->kref)); \
|
|
}
|
|
void _c4iw_free_ep(struct kref *kref);
|
|
|
|
struct mpa_message {
|
|
u8 key[16];
|
|
u8 flags;
|
|
u8 revision;
|
|
__be16 private_data_size;
|
|
u8 private_data[0];
|
|
};
|
|
|
|
struct mpa_v2_conn_params {
|
|
__be16 ird;
|
|
__be16 ord;
|
|
};
|
|
|
|
struct terminate_message {
|
|
u8 layer_etype;
|
|
u8 ecode;
|
|
__be16 hdrct_rsvd;
|
|
u8 len_hdrs[0];
|
|
};
|
|
|
|
#define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28)
|
|
|
|
enum c4iw_layers_types {
|
|
LAYER_RDMAP = 0x00,
|
|
LAYER_DDP = 0x10,
|
|
LAYER_MPA = 0x20,
|
|
RDMAP_LOCAL_CATA = 0x00,
|
|
RDMAP_REMOTE_PROT = 0x01,
|
|
RDMAP_REMOTE_OP = 0x02,
|
|
DDP_LOCAL_CATA = 0x00,
|
|
DDP_TAGGED_ERR = 0x01,
|
|
DDP_UNTAGGED_ERR = 0x02,
|
|
DDP_LLP = 0x03
|
|
};
|
|
|
|
enum c4iw_rdma_ecodes {
|
|
RDMAP_INV_STAG = 0x00,
|
|
RDMAP_BASE_BOUNDS = 0x01,
|
|
RDMAP_ACC_VIOL = 0x02,
|
|
RDMAP_STAG_NOT_ASSOC = 0x03,
|
|
RDMAP_TO_WRAP = 0x04,
|
|
RDMAP_INV_VERS = 0x05,
|
|
RDMAP_INV_OPCODE = 0x06,
|
|
RDMAP_STREAM_CATA = 0x07,
|
|
RDMAP_GLOBAL_CATA = 0x08,
|
|
RDMAP_CANT_INV_STAG = 0x09,
|
|
RDMAP_UNSPECIFIED = 0xff
|
|
};
|
|
|
|
enum c4iw_ddp_ecodes {
|
|
DDPT_INV_STAG = 0x00,
|
|
DDPT_BASE_BOUNDS = 0x01,
|
|
DDPT_STAG_NOT_ASSOC = 0x02,
|
|
DDPT_TO_WRAP = 0x03,
|
|
DDPT_INV_VERS = 0x04,
|
|
DDPU_INV_QN = 0x01,
|
|
DDPU_INV_MSN_NOBUF = 0x02,
|
|
DDPU_INV_MSN_RANGE = 0x03,
|
|
DDPU_INV_MO = 0x04,
|
|
DDPU_MSG_TOOBIG = 0x05,
|
|
DDPU_INV_VERS = 0x06
|
|
};
|
|
|
|
enum c4iw_mpa_ecodes {
|
|
MPA_CRC_ERR = 0x02,
|
|
MPA_MARKER_ERR = 0x03,
|
|
MPA_LOCAL_CATA = 0x05,
|
|
MPA_INSUFF_IRD = 0x06,
|
|
MPA_NOMATCH_RTR = 0x07,
|
|
};
|
|
|
|
enum c4iw_ep_state {
|
|
IDLE = 0,
|
|
LISTEN,
|
|
CONNECTING,
|
|
MPA_REQ_WAIT,
|
|
MPA_REQ_SENT,
|
|
MPA_REQ_RCVD,
|
|
MPA_REP_SENT,
|
|
FPDU_MODE,
|
|
ABORTING,
|
|
CLOSING,
|
|
MORIBUND,
|
|
DEAD,
|
|
};
|
|
|
|
enum c4iw_ep_flags {
|
|
PEER_ABORT_IN_PROGRESS = 0,
|
|
ABORT_REQ_IN_PROGRESS = 1,
|
|
RELEASE_RESOURCES = 2,
|
|
CLOSE_SENT = 3,
|
|
TIMEOUT = 4,
|
|
QP_REFERENCED = 5,
|
|
STOP_MPA_TIMER = 7,
|
|
};
|
|
|
|
enum c4iw_ep_history {
|
|
ACT_OPEN_REQ = 0,
|
|
ACT_OFLD_CONN = 1,
|
|
ACT_OPEN_RPL = 2,
|
|
ACT_ESTAB = 3,
|
|
PASS_ACCEPT_REQ = 4,
|
|
PASS_ESTAB = 5,
|
|
ABORT_UPCALL = 6,
|
|
ESTAB_UPCALL = 7,
|
|
CLOSE_UPCALL = 8,
|
|
ULP_ACCEPT = 9,
|
|
ULP_REJECT = 10,
|
|
TIMEDOUT = 11,
|
|
PEER_ABORT = 12,
|
|
PEER_CLOSE = 13,
|
|
CONNREQ_UPCALL = 14,
|
|
ABORT_CONN = 15,
|
|
DISCONN_UPCALL = 16,
|
|
EP_DISC_CLOSE = 17,
|
|
EP_DISC_ABORT = 18,
|
|
CONN_RPL_UPCALL = 19,
|
|
ACT_RETRY_NOMEM = 20,
|
|
ACT_RETRY_INUSE = 21,
|
|
CLOSE_CON_RPL = 22,
|
|
EP_DISC_FAIL = 24,
|
|
QP_REFED = 25,
|
|
QP_DEREFED = 26,
|
|
CM_ID_REFED = 27,
|
|
CM_ID_DEREFED = 28,
|
|
};
|
|
|
|
enum conn_pre_alloc_buffers {
|
|
CN_ABORT_REQ_BUF,
|
|
CN_ABORT_RPL_BUF,
|
|
CN_CLOSE_CON_REQ_BUF,
|
|
CN_DESTROY_BUF,
|
|
CN_FLOWC_BUF,
|
|
CN_MAX_CON_BUF
|
|
};
|
|
|
|
enum {
|
|
FLOWC_LEN = offsetof(struct fw_flowc_wr, mnemval[FW_FLOWC_MNEM_MAX])
|
|
};
|
|
|
|
union cpl_wr_size {
|
|
struct cpl_abort_req abrt_req;
|
|
struct cpl_abort_rpl abrt_rpl;
|
|
struct fw_ri_wr ri_req;
|
|
struct cpl_close_con_req close_req;
|
|
char flowc_buf[FLOWC_LEN];
|
|
};
|
|
|
|
struct c4iw_ep_common {
|
|
struct iw_cm_id *cm_id;
|
|
struct c4iw_qp *qp;
|
|
struct c4iw_dev *dev;
|
|
struct sk_buff_head ep_skb_list;
|
|
enum c4iw_ep_state state;
|
|
struct kref kref;
|
|
struct mutex mutex;
|
|
struct sockaddr_storage local_addr;
|
|
struct sockaddr_storage remote_addr;
|
|
struct c4iw_wr_wait *wr_waitp;
|
|
unsigned long flags;
|
|
unsigned long history;
|
|
};
|
|
|
|
struct c4iw_listen_ep {
|
|
struct c4iw_ep_common com;
|
|
unsigned int stid;
|
|
int backlog;
|
|
};
|
|
|
|
struct c4iw_ep_stats {
|
|
unsigned connect_neg_adv;
|
|
unsigned abort_neg_adv;
|
|
};
|
|
|
|
struct c4iw_ep {
|
|
struct c4iw_ep_common com;
|
|
struct c4iw_ep *parent_ep;
|
|
struct timer_list timer;
|
|
struct list_head entry;
|
|
unsigned int atid;
|
|
u32 hwtid;
|
|
u32 snd_seq;
|
|
u32 rcv_seq;
|
|
struct l2t_entry *l2t;
|
|
struct dst_entry *dst;
|
|
struct sk_buff *mpa_skb;
|
|
struct c4iw_mpa_attributes mpa_attr;
|
|
u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA];
|
|
unsigned int mpa_pkt_len;
|
|
u32 ird;
|
|
u32 ord;
|
|
u32 smac_idx;
|
|
u32 tx_chan;
|
|
u32 mtu;
|
|
u16 mss;
|
|
u16 emss;
|
|
u16 plen;
|
|
u16 rss_qid;
|
|
u16 txq_idx;
|
|
u16 ctrlq_idx;
|
|
u8 tos;
|
|
u8 retry_with_mpa_v1;
|
|
u8 tried_with_mpa_v1;
|
|
unsigned int retry_count;
|
|
int snd_win;
|
|
int rcv_win;
|
|
u32 snd_wscale;
|
|
struct c4iw_ep_stats stats;
|
|
u32 srqe_idx;
|
|
u32 rx_pdu_out_cnt;
|
|
struct sk_buff *peer_abort_skb;
|
|
};
|
|
|
|
static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)
|
|
{
|
|
return cm_id->provider_data;
|
|
}
|
|
|
|
static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id)
|
|
{
|
|
return cm_id->provider_data;
|
|
}
|
|
|
|
static inline int ocqp_supported(const struct cxgb4_lld_info *infop)
|
|
{
|
|
#if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)
|
|
return infop->vr->ocq.size > 0;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
u32 c4iw_id_alloc(struct c4iw_id_table *alloc);
|
|
void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj);
|
|
int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,
|
|
u32 reserved, u32 flags);
|
|
void c4iw_id_table_free(struct c4iw_id_table *alloc);
|
|
|
|
typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb);
|
|
|
|
int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new,
|
|
struct l2t_entry *l2t);
|
|
void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid,
|
|
struct c4iw_dev_ucontext *uctx);
|
|
u32 c4iw_get_resource(struct c4iw_id_table *id_table);
|
|
void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry);
|
|
int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt,
|
|
u32 nr_pdid, u32 nr_srqt);
|
|
int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev);
|
|
int c4iw_pblpool_create(struct c4iw_rdev *rdev);
|
|
int c4iw_rqtpool_create(struct c4iw_rdev *rdev);
|
|
int c4iw_ocqp_pool_create(struct c4iw_rdev *rdev);
|
|
void c4iw_pblpool_destroy(struct c4iw_rdev *rdev);
|
|
void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev);
|
|
void c4iw_ocqp_pool_destroy(struct c4iw_rdev *rdev);
|
|
void c4iw_destroy_resource(struct c4iw_resource *rscp);
|
|
int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev);
|
|
void c4iw_register_device(struct work_struct *work);
|
|
void c4iw_unregister_device(struct c4iw_dev *dev);
|
|
int __init c4iw_cm_init(void);
|
|
void c4iw_cm_term(void);
|
|
void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev,
|
|
struct c4iw_dev_ucontext *uctx);
|
|
void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
|
|
struct c4iw_dev_ucontext *uctx);
|
|
int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
|
|
int c4iw_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
|
|
const struct ib_send_wr **bad_wr);
|
|
int c4iw_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
|
|
const struct ib_recv_wr **bad_wr);
|
|
int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
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int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog);
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int c4iw_destroy_listen(struct iw_cm_id *cm_id);
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int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
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int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len);
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void c4iw_qp_add_ref(struct ib_qp *qp);
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void c4iw_qp_rem_ref(struct ib_qp *qp);
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struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
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u32 max_num_sg, struct ib_udata *udata);
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int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
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unsigned int *sg_offset);
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int c4iw_dealloc_mw(struct ib_mw *mw);
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void c4iw_dealloc(struct uld_ctx *ctx);
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struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
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struct ib_udata *udata);
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struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start,
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u64 length, u64 virt, int acc,
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struct ib_udata *udata);
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struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc);
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int c4iw_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata);
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void c4iw_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata);
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int c4iw_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
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struct ib_udata *udata);
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int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
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int c4iw_modify_srq(struct ib_srq *ib_srq, struct ib_srq_attr *attr,
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enum ib_srq_attr_mask srq_attr_mask,
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struct ib_udata *udata);
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void c4iw_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata);
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int c4iw_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *attrs,
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struct ib_udata *udata);
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int c4iw_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata);
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struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
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struct ib_qp_init_attr *attrs,
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struct ib_udata *udata);
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int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
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int attr_mask, struct ib_udata *udata);
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int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
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int attr_mask, struct ib_qp_init_attr *init_attr);
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struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn);
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u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size);
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void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
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u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size);
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void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
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u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size);
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void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size);
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void c4iw_flush_hw_cq(struct c4iw_cq *chp, struct c4iw_qp *flush_qhp);
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void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
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int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp);
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int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count);
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int c4iw_flush_sq(struct c4iw_qp *qhp);
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int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid);
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u16 c4iw_rqes_posted(struct c4iw_qp *qhp);
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int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe);
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u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
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void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid,
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struct c4iw_dev_ucontext *uctx);
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u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
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void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid,
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struct c4iw_dev_ucontext *uctx);
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void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe);
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extern struct cxgb4_client t4c_client;
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extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS];
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void __iomem *c4iw_bar2_addrs(struct c4iw_rdev *rdev, unsigned int qid,
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enum cxgb4_bar2_qtype qtype,
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unsigned int *pbar2_qid, u64 *pbar2_pa);
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int c4iw_alloc_srq_idx(struct c4iw_rdev *rdev);
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void c4iw_free_srq_idx(struct c4iw_rdev *rdev, int idx);
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extern void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe);
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extern int c4iw_wr_log;
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extern int db_fc_threshold;
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extern int db_coalescing_threshold;
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extern int use_dsgl;
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void c4iw_invalidate_mr(struct c4iw_dev *rhp, u32 rkey);
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void c4iw_dispatch_srq_limit_reached_event(struct c4iw_srq *srq);
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void c4iw_copy_wr_to_srq(struct t4_srq *srq, union t4_recv_wr *wqe, u8 len16);
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void c4iw_flush_srqidx(struct c4iw_qp *qhp, u32 srqidx);
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int c4iw_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
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const struct ib_recv_wr **bad_wr);
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struct c4iw_wr_wait *c4iw_alloc_wr_wait(gfp_t gfp);
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typedef int c4iw_restrack_func(struct sk_buff *msg,
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struct rdma_restrack_entry *res);
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extern c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX];
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#endif
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