359 lines
9.2 KiB
C
359 lines
9.2 KiB
C
/*
|
|
* Copyright (c) 2006 Chelsio, 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 __IWCH_PROVIDER_H__
|
|
#define __IWCH_PROVIDER_H__
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/spinlock.h>
|
|
#include <rdma/ib_verbs.h>
|
|
#include <asm/types.h>
|
|
#include "t3cdev.h"
|
|
#include "iwch.h"
|
|
#include "cxio_wr.h"
|
|
#include "cxio_hal.h"
|
|
|
|
struct iwch_pd {
|
|
struct ib_pd ibpd;
|
|
u32 pdid;
|
|
struct iwch_dev *rhp;
|
|
};
|
|
|
|
static inline struct iwch_pd *to_iwch_pd(struct ib_pd *ibpd)
|
|
{
|
|
return container_of(ibpd, struct iwch_pd, ibpd);
|
|
}
|
|
|
|
struct tpt_attributes {
|
|
u32 stag;
|
|
u32 state:1;
|
|
u32 type:2;
|
|
u32 rsvd:1;
|
|
enum tpt_mem_perm perms;
|
|
u32 remote_invaliate_disable:1;
|
|
u32 zbva:1;
|
|
u32 mw_bind_enable:1;
|
|
u32 page_size:5;
|
|
|
|
u32 pdid;
|
|
u32 qpid;
|
|
u32 pbl_addr;
|
|
u32 len;
|
|
u64 va_fbo;
|
|
u32 pbl_size;
|
|
};
|
|
|
|
struct iwch_mr {
|
|
struct ib_mr ibmr;
|
|
struct iwch_dev *rhp;
|
|
u64 kva;
|
|
struct tpt_attributes attr;
|
|
};
|
|
|
|
typedef struct iwch_mw iwch_mw_handle;
|
|
|
|
static inline struct iwch_mr *to_iwch_mr(struct ib_mr *ibmr)
|
|
{
|
|
return container_of(ibmr, struct iwch_mr, ibmr);
|
|
}
|
|
|
|
struct iwch_mw {
|
|
struct ib_mw ibmw;
|
|
struct iwch_dev *rhp;
|
|
u64 kva;
|
|
struct tpt_attributes attr;
|
|
};
|
|
|
|
static inline struct iwch_mw *to_iwch_mw(struct ib_mw *ibmw)
|
|
{
|
|
return container_of(ibmw, struct iwch_mw, ibmw);
|
|
}
|
|
|
|
struct iwch_cq {
|
|
struct ib_cq ibcq;
|
|
struct iwch_dev *rhp;
|
|
struct t3_cq cq;
|
|
spinlock_t lock;
|
|
atomic_t refcnt;
|
|
wait_queue_head_t wait;
|
|
u32 __user *user_rptr_addr;
|
|
};
|
|
|
|
static inline struct iwch_cq *to_iwch_cq(struct ib_cq *ibcq)
|
|
{
|
|
return container_of(ibcq, struct iwch_cq, ibcq);
|
|
}
|
|
|
|
enum IWCH_QP_FLAGS {
|
|
QP_QUIESCED = 0x01
|
|
};
|
|
|
|
struct iwch_mpa_attributes {
|
|
u8 recv_marker_enabled;
|
|
u8 xmit_marker_enabled; /* iWARP: enable inbound Read Resp. */
|
|
u8 crc_enabled;
|
|
u8 version; /* 0 or 1 */
|
|
};
|
|
|
|
struct iwch_qp_attributes {
|
|
u32 scq;
|
|
u32 rcq;
|
|
u32 sq_num_entries;
|
|
u32 rq_num_entries;
|
|
u32 sq_max_sges;
|
|
u32 sq_max_sges_rdma_write;
|
|
u32 rq_max_sges;
|
|
u32 state;
|
|
u8 enable_rdma_read;
|
|
u8 enable_rdma_write; /* enable inbound Read Resp. */
|
|
u8 enable_bind;
|
|
u8 enable_mmid0_fastreg; /* Enable STAG0 + Fast-register */
|
|
/*
|
|
* Next QP state. If specify the current state, only the
|
|
* QP attributes will be modified.
|
|
*/
|
|
u32 max_ord;
|
|
u32 max_ird;
|
|
u32 pd; /* IN */
|
|
u32 next_state;
|
|
char terminate_buffer[52];
|
|
u32 terminate_msg_len;
|
|
u8 is_terminate_local;
|
|
struct iwch_mpa_attributes mpa_attr; /* IN-OUT */
|
|
struct iwch_ep *llp_stream_handle;
|
|
char *stream_msg_buf; /* Last stream msg. before Idle -> RTS */
|
|
u32 stream_msg_buf_len; /* Only on Idle -> RTS */
|
|
};
|
|
|
|
struct iwch_qp {
|
|
struct ib_qp ibqp;
|
|
struct iwch_dev *rhp;
|
|
struct iwch_ep *ep;
|
|
struct iwch_qp_attributes attr;
|
|
struct t3_wq wq;
|
|
spinlock_t lock;
|
|
atomic_t refcnt;
|
|
wait_queue_head_t wait;
|
|
enum IWCH_QP_FLAGS flags;
|
|
struct timer_list timer;
|
|
};
|
|
|
|
static inline int qp_quiesced(struct iwch_qp *qhp)
|
|
{
|
|
return qhp->flags & QP_QUIESCED;
|
|
}
|
|
|
|
static inline struct iwch_qp *to_iwch_qp(struct ib_qp *ibqp)
|
|
{
|
|
return container_of(ibqp, struct iwch_qp, ibqp);
|
|
}
|
|
|
|
void iwch_qp_add_ref(struct ib_qp *qp);
|
|
void iwch_qp_rem_ref(struct ib_qp *qp);
|
|
|
|
struct iwch_ucontext {
|
|
struct ib_ucontext ibucontext;
|
|
struct cxio_ucontext uctx;
|
|
u32 key;
|
|
spinlock_t mmap_lock;
|
|
struct list_head mmaps;
|
|
};
|
|
|
|
static inline struct iwch_ucontext *to_iwch_ucontext(struct ib_ucontext *c)
|
|
{
|
|
return container_of(c, struct iwch_ucontext, ibucontext);
|
|
}
|
|
|
|
struct iwch_mm_entry {
|
|
struct list_head entry;
|
|
u64 addr;
|
|
u32 key;
|
|
unsigned len;
|
|
};
|
|
|
|
static inline struct iwch_mm_entry *remove_mmap(struct iwch_ucontext *ucontext,
|
|
u32 key, unsigned len)
|
|
{
|
|
struct list_head *pos, *nxt;
|
|
struct iwch_mm_entry *mm;
|
|
|
|
spin_lock(&ucontext->mmap_lock);
|
|
list_for_each_safe(pos, nxt, &ucontext->mmaps) {
|
|
|
|
mm = list_entry(pos, struct iwch_mm_entry, entry);
|
|
if (mm->key == key && mm->len == len) {
|
|
list_del_init(&mm->entry);
|
|
spin_unlock(&ucontext->mmap_lock);
|
|
PDBG("%s key 0x%x addr 0x%llx len %d\n", __FUNCTION__,
|
|
key, (unsigned long long) mm->addr, mm->len);
|
|
return mm;
|
|
}
|
|
}
|
|
spin_unlock(&ucontext->mmap_lock);
|
|
return NULL;
|
|
}
|
|
|
|
static inline void insert_mmap(struct iwch_ucontext *ucontext,
|
|
struct iwch_mm_entry *mm)
|
|
{
|
|
spin_lock(&ucontext->mmap_lock);
|
|
PDBG("%s key 0x%x addr 0x%llx len %d\n", __FUNCTION__,
|
|
mm->key, (unsigned long long) mm->addr, mm->len);
|
|
list_add_tail(&mm->entry, &ucontext->mmaps);
|
|
spin_unlock(&ucontext->mmap_lock);
|
|
}
|
|
|
|
enum iwch_qp_attr_mask {
|
|
IWCH_QP_ATTR_NEXT_STATE = 1 << 0,
|
|
IWCH_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
|
|
IWCH_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
|
|
IWCH_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
|
|
IWCH_QP_ATTR_MAX_ORD = 1 << 11,
|
|
IWCH_QP_ATTR_MAX_IRD = 1 << 12,
|
|
IWCH_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
|
|
IWCH_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
|
|
IWCH_QP_ATTR_MPA_ATTR = 1 << 24,
|
|
IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
|
|
IWCH_QP_ATTR_VALID_MODIFY = (IWCH_QP_ATTR_ENABLE_RDMA_READ |
|
|
IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
|
|
IWCH_QP_ATTR_MAX_ORD |
|
|
IWCH_QP_ATTR_MAX_IRD |
|
|
IWCH_QP_ATTR_LLP_STREAM_HANDLE |
|
|
IWCH_QP_ATTR_STREAM_MSG_BUFFER |
|
|
IWCH_QP_ATTR_MPA_ATTR |
|
|
IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE)
|
|
};
|
|
|
|
int iwch_modify_qp(struct iwch_dev *rhp,
|
|
struct iwch_qp *qhp,
|
|
enum iwch_qp_attr_mask mask,
|
|
struct iwch_qp_attributes *attrs,
|
|
int internal);
|
|
|
|
enum iwch_qp_state {
|
|
IWCH_QP_STATE_IDLE,
|
|
IWCH_QP_STATE_RTS,
|
|
IWCH_QP_STATE_ERROR,
|
|
IWCH_QP_STATE_TERMINATE,
|
|
IWCH_QP_STATE_CLOSING,
|
|
IWCH_QP_STATE_TOT
|
|
};
|
|
|
|
static inline int iwch_convert_state(enum ib_qp_state ib_state)
|
|
{
|
|
switch (ib_state) {
|
|
case IB_QPS_RESET:
|
|
case IB_QPS_INIT:
|
|
return IWCH_QP_STATE_IDLE;
|
|
case IB_QPS_RTS:
|
|
return IWCH_QP_STATE_RTS;
|
|
case IB_QPS_SQD:
|
|
return IWCH_QP_STATE_CLOSING;
|
|
case IB_QPS_SQE:
|
|
return IWCH_QP_STATE_TERMINATE;
|
|
case IB_QPS_ERR:
|
|
return IWCH_QP_STATE_ERROR;
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static inline u32 iwch_ib_to_tpt_access(int acc)
|
|
{
|
|
return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) |
|
|
(acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0) |
|
|
(acc & IB_ACCESS_LOCAL_WRITE ? TPT_LOCAL_WRITE : 0) |
|
|
TPT_LOCAL_READ;
|
|
}
|
|
|
|
static inline u32 iwch_ib_to_mwbind_access(int acc)
|
|
{
|
|
return (acc & IB_ACCESS_REMOTE_WRITE ? T3_MEM_ACCESS_REM_WRITE : 0) |
|
|
(acc & IB_ACCESS_REMOTE_READ ? T3_MEM_ACCESS_REM_READ : 0) |
|
|
(acc & IB_ACCESS_LOCAL_WRITE ? T3_MEM_ACCESS_LOCAL_WRITE : 0) |
|
|
T3_MEM_ACCESS_LOCAL_READ;
|
|
}
|
|
|
|
enum iwch_mmid_state {
|
|
IWCH_STAG_STATE_VALID,
|
|
IWCH_STAG_STATE_INVALID
|
|
};
|
|
|
|
enum iwch_qp_query_flags {
|
|
IWCH_QP_QUERY_CONTEXT_NONE = 0x0, /* No ctx; Only attrs */
|
|
IWCH_QP_QUERY_CONTEXT_GET = 0x1, /* Get ctx + attrs */
|
|
IWCH_QP_QUERY_CONTEXT_SUSPEND = 0x2, /* Not Supported */
|
|
|
|
/*
|
|
* Quiesce QP context; Consumer
|
|
* will NOT replay outstanding WR
|
|
*/
|
|
IWCH_QP_QUERY_CONTEXT_QUIESCE = 0x4,
|
|
IWCH_QP_QUERY_CONTEXT_REMOVE = 0x8,
|
|
IWCH_QP_QUERY_TEST_USERWRITE = 0x32 /* Test special */
|
|
};
|
|
|
|
int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
|
|
struct ib_send_wr **bad_wr);
|
|
int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
|
|
struct ib_recv_wr **bad_wr);
|
|
int iwch_bind_mw(struct ib_qp *qp,
|
|
struct ib_mw *mw,
|
|
struct ib_mw_bind *mw_bind);
|
|
int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
|
|
int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg);
|
|
int iwch_register_device(struct iwch_dev *dev);
|
|
void iwch_unregister_device(struct iwch_dev *dev);
|
|
int iwch_quiesce_qps(struct iwch_cq *chp);
|
|
int iwch_resume_qps(struct iwch_cq *chp);
|
|
void stop_read_rep_timer(struct iwch_qp *qhp);
|
|
int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
|
|
struct iwch_mr *mhp,
|
|
int shift,
|
|
__be64 *page_list);
|
|
int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
|
|
struct iwch_mr *mhp,
|
|
int shift,
|
|
__be64 *page_list,
|
|
int npages);
|
|
int build_phys_page_list(struct ib_phys_buf *buffer_list,
|
|
int num_phys_buf,
|
|
u64 *iova_start,
|
|
u64 *total_size,
|
|
int *npages,
|
|
int *shift,
|
|
__be64 **page_list);
|
|
|
|
|
|
#define IWCH_NODE_DESC "cxgb3 Chelsio Communications"
|
|
|
|
#endif
|