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/*
* 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.
*/
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <rdma/iw_cm.h>
#include <rdma/ib_verbs.h>
#include "cxio_hal.h"
#include "cxio_resource.h"
#include "iwch.h"
#include "iwch_provider.h"
static int iwch_finish_mem_reg(struct iwch_mr *mhp, u32 stag)
{
u32 mmid;
mhp->attr.state = 1;
mhp->attr.stag = stag;
mmid = stag >> 8;
mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
pr_debug("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp);
return xa_insert_irq(&mhp->rhp->mrs, mmid, mhp, GFP_KERNEL);
}
int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
struct iwch_mr *mhp, int shift)
{
u32 stag;
int ret;
if (cxio_register_phys_mem(&rhp->rdev,
&stag, mhp->attr.pdid,
mhp->attr.perms,
mhp->attr.zbva,
mhp->attr.va_fbo,
mhp->attr.len,
shift - 12,
mhp->attr.pbl_size, mhp->attr.pbl_addr))
return -ENOMEM;
ret = iwch_finish_mem_reg(mhp, stag);
if (ret)
cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
mhp->attr.pbl_addr);
return ret;
}
int iwch_alloc_pbl(struct iwch_mr *mhp, int npages)
{
mhp->attr.pbl_addr = cxio_hal_pblpool_alloc(&mhp->rhp->rdev,
npages << 3);
if (!mhp->attr.pbl_addr)
return -ENOMEM;
mhp->attr.pbl_size = npages;
return 0;
}
void iwch_free_pbl(struct iwch_mr *mhp)
{
cxio_hal_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr,
mhp->attr.pbl_size << 3);
}
int iwch_write_pbl(struct iwch_mr *mhp, __be64 *pages, int npages, int offset)
{
return cxio_write_pbl(&mhp->rhp->rdev, pages,
mhp->attr.pbl_addr + (offset << 3), npages);
}
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