180 lines
4.5 KiB
C
180 lines
4.5 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_H__
|
|
#define __IWCH_H__
|
|
|
|
#include <linux/mutex.h>
|
|
#include <linux/list.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/idr.h>
|
|
#include <linux/workqueue.h>
|
|
|
|
#include <rdma/ib_verbs.h>
|
|
|
|
#include "cxio_hal.h"
|
|
#include "cxgb3_offload.h"
|
|
|
|
struct iwch_pd;
|
|
struct iwch_cq;
|
|
struct iwch_qp;
|
|
struct iwch_mr;
|
|
|
|
struct iwch_rnic_attributes {
|
|
u32 max_qps;
|
|
u32 max_wrs; /* Max for any SQ/RQ */
|
|
u32 max_sge_per_wr;
|
|
u32 max_sge_per_rdma_write_wr; /* for RDMA Write WR */
|
|
u32 max_cqs;
|
|
u32 max_cqes_per_cq;
|
|
u32 max_mem_regs;
|
|
u32 max_phys_buf_entries; /* for phys buf list */
|
|
u32 max_pds;
|
|
|
|
/*
|
|
* The memory page sizes supported by this RNIC.
|
|
* Bit position i in bitmap indicates page of
|
|
* size (4k)^i. Phys block list mode unsupported.
|
|
*/
|
|
u32 mem_pgsizes_bitmask;
|
|
u64 max_mr_size;
|
|
u8 can_resize_wq;
|
|
|
|
/*
|
|
* The maximum number of RDMA Reads that can be outstanding
|
|
* per QP with this RNIC as the target.
|
|
*/
|
|
u32 max_rdma_reads_per_qp;
|
|
|
|
/*
|
|
* The maximum number of resources used for RDMA Reads
|
|
* by this RNIC with this RNIC as the target.
|
|
*/
|
|
u32 max_rdma_read_resources;
|
|
|
|
/*
|
|
* The max depth per QP for initiation of RDMA Read
|
|
* by this RNIC.
|
|
*/
|
|
u32 max_rdma_read_qp_depth;
|
|
|
|
/*
|
|
* The maximum depth for initiation of RDMA Read
|
|
* operations by this RNIC on all QPs
|
|
*/
|
|
u32 max_rdma_read_depth;
|
|
u8 rq_overflow_handled;
|
|
u32 can_modify_ird;
|
|
u32 can_modify_ord;
|
|
u32 max_mem_windows;
|
|
u32 stag0_value;
|
|
u8 zbva_support;
|
|
u8 local_invalidate_fence;
|
|
u32 cq_overflow_detection;
|
|
};
|
|
|
|
struct iwch_dev {
|
|
struct ib_device ibdev;
|
|
struct cxio_rdev rdev;
|
|
u32 device_cap_flags;
|
|
struct iwch_rnic_attributes attr;
|
|
struct idr cqidr;
|
|
struct idr qpidr;
|
|
struct idr mmidr;
|
|
spinlock_t lock;
|
|
struct list_head entry;
|
|
struct delayed_work db_drop_task;
|
|
};
|
|
|
|
static inline struct iwch_dev *to_iwch_dev(struct ib_device *ibdev)
|
|
{
|
|
return container_of(ibdev, struct iwch_dev, ibdev);
|
|
}
|
|
|
|
static inline struct iwch_dev *rdev_to_iwch_dev(struct cxio_rdev *rdev)
|
|
{
|
|
return container_of(rdev, struct iwch_dev, rdev);
|
|
}
|
|
|
|
static inline int t3b_device(const struct iwch_dev *rhp)
|
|
{
|
|
return rhp->rdev.t3cdev_p->type == T3B;
|
|
}
|
|
|
|
static inline int t3a_device(const struct iwch_dev *rhp)
|
|
{
|
|
return rhp->rdev.t3cdev_p->type == T3A;
|
|
}
|
|
|
|
static inline struct iwch_cq *get_chp(struct iwch_dev *rhp, u32 cqid)
|
|
{
|
|
return idr_find(&rhp->cqidr, cqid);
|
|
}
|
|
|
|
static inline struct iwch_qp *get_qhp(struct iwch_dev *rhp, u32 qpid)
|
|
{
|
|
return idr_find(&rhp->qpidr, qpid);
|
|
}
|
|
|
|
static inline struct iwch_mr *get_mhp(struct iwch_dev *rhp, u32 mmid)
|
|
{
|
|
return idr_find(&rhp->mmidr, mmid);
|
|
}
|
|
|
|
static inline int insert_handle(struct iwch_dev *rhp, struct idr *idr,
|
|
void *handle, u32 id)
|
|
{
|
|
int ret;
|
|
|
|
idr_preload(GFP_KERNEL);
|
|
spin_lock_irq(&rhp->lock);
|
|
|
|
ret = idr_alloc(idr, handle, id, id + 1, GFP_NOWAIT);
|
|
|
|
spin_unlock_irq(&rhp->lock);
|
|
idr_preload_end();
|
|
|
|
return ret < 0 ? ret : 0;
|
|
}
|
|
|
|
static inline void remove_handle(struct iwch_dev *rhp, struct idr *idr, u32 id)
|
|
{
|
|
spin_lock_irq(&rhp->lock);
|
|
idr_remove(idr, id);
|
|
spin_unlock_irq(&rhp->lock);
|
|
}
|
|
|
|
extern struct cxgb3_client t3c_client;
|
|
extern cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS];
|
|
extern void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb);
|
|
|
|
#endif
|