mirror of https://gitee.com/openkylin/linux.git
102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*
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* Copyright (c) 2006 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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*
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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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#include <linux/slab.h>
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#include <asm/byteorder.h>
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#include <rdma/iw_cm.h>
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#include <rdma/ib_verbs.h>
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#include "cxio_hal.h"
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#include "cxio_resource.h"
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#include "iwch.h"
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#include "iwch_provider.h"
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static int iwch_finish_mem_reg(struct iwch_mr *mhp, u32 stag)
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{
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u32 mmid;
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mhp->attr.state = 1;
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mhp->attr.stag = stag;
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mmid = stag >> 8;
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mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
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pr_debug("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp);
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return xa_insert_irq(&mhp->rhp->mrs, mmid, mhp, GFP_KERNEL);
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}
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int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
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struct iwch_mr *mhp, int shift)
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{
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u32 stag;
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int ret;
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if (cxio_register_phys_mem(&rhp->rdev,
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&stag, mhp->attr.pdid,
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mhp->attr.perms,
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mhp->attr.zbva,
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mhp->attr.va_fbo,
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mhp->attr.len,
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shift - 12,
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mhp->attr.pbl_size, mhp->attr.pbl_addr))
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return -ENOMEM;
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ret = iwch_finish_mem_reg(mhp, stag);
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if (ret)
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cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
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mhp->attr.pbl_addr);
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return ret;
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}
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int iwch_alloc_pbl(struct iwch_mr *mhp, int npages)
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{
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mhp->attr.pbl_addr = cxio_hal_pblpool_alloc(&mhp->rhp->rdev,
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npages << 3);
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if (!mhp->attr.pbl_addr)
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return -ENOMEM;
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mhp->attr.pbl_size = npages;
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return 0;
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}
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void iwch_free_pbl(struct iwch_mr *mhp)
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{
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cxio_hal_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr,
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mhp->attr.pbl_size << 3);
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}
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int iwch_write_pbl(struct iwch_mr *mhp, __be64 *pages, int npages, int offset)
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{
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return cxio_write_pbl(&mhp->rhp->rdev, pages,
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mhp->attr.pbl_addr + (offset << 3), npages);
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}
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