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![Chengchang Tang](/assets/img/avatar_default.png)
HIP06 is no longer supported. In order to reduce unnecessary maintenance, the code of HIP06 is removed. Link: https://lore.kernel.org/r/20211220130558.61585-1-liangwenpeng@huawei.com Signed-off-by: Chengchang Tang <tangchengchang@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
170 lines
4.7 KiB
C
170 lines
4.7 KiB
C
/*
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* Copyright (c) 2016 Hisilicon Limited.
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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/pci.h>
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#include "hns_roce_device.h"
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void hns_roce_init_pd_table(struct hns_roce_dev *hr_dev)
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{
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struct hns_roce_ida *pd_ida = &hr_dev->pd_ida;
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ida_init(&pd_ida->ida);
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pd_ida->max = hr_dev->caps.num_pds - 1;
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pd_ida->min = hr_dev->caps.reserved_pds;
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}
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int hns_roce_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
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{
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struct ib_device *ib_dev = ibpd->device;
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struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev);
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struct hns_roce_ida *pd_ida = &hr_dev->pd_ida;
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struct hns_roce_pd *pd = to_hr_pd(ibpd);
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int ret = 0;
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int id;
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id = ida_alloc_range(&pd_ida->ida, pd_ida->min, pd_ida->max,
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GFP_KERNEL);
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if (id < 0) {
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ibdev_err(ib_dev, "failed to alloc pd, id = %d.\n", id);
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return -ENOMEM;
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}
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pd->pdn = (unsigned long)id;
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if (udata) {
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struct hns_roce_ib_alloc_pd_resp resp = {.pdn = pd->pdn};
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ret = ib_copy_to_udata(udata, &resp,
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min(udata->outlen, sizeof(resp)));
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if (ret) {
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ida_free(&pd_ida->ida, id);
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ibdev_err(ib_dev, "failed to copy to udata, ret = %d\n", ret);
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}
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}
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return ret;
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}
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int hns_roce_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata)
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{
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struct hns_roce_dev *hr_dev = to_hr_dev(pd->device);
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ida_free(&hr_dev->pd_ida.ida, (int)to_hr_pd(pd)->pdn);
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return 0;
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}
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int hns_roce_uar_alloc(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar)
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{
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struct hns_roce_ida *uar_ida = &hr_dev->uar_ida;
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int id;
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/* Using bitmap to manager UAR index */
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id = ida_alloc_range(&uar_ida->ida, uar_ida->min, uar_ida->max,
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GFP_KERNEL);
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if (id < 0) {
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ibdev_err(&hr_dev->ib_dev, "failed to alloc uar id(%d).\n", id);
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return -ENOMEM;
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}
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uar->logic_idx = (unsigned long)id;
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if (uar->logic_idx > 0 && hr_dev->caps.phy_num_uars > 1)
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uar->index = (uar->logic_idx - 1) %
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(hr_dev->caps.phy_num_uars - 1) + 1;
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else
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uar->index = 0;
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uar->pfn = ((pci_resource_start(hr_dev->pci_dev, 2)) >> PAGE_SHIFT);
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if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_DIRECT_WQE)
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hr_dev->dwqe_page = pci_resource_start(hr_dev->pci_dev, 4);
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return 0;
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}
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void hns_roce_init_uar_table(struct hns_roce_dev *hr_dev)
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{
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struct hns_roce_ida *uar_ida = &hr_dev->uar_ida;
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ida_init(&uar_ida->ida);
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uar_ida->max = hr_dev->caps.num_uars - 1;
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uar_ida->min = hr_dev->caps.reserved_uars;
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}
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static int hns_roce_xrcd_alloc(struct hns_roce_dev *hr_dev, u32 *xrcdn)
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{
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struct hns_roce_ida *xrcd_ida = &hr_dev->xrcd_ida;
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int id;
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id = ida_alloc_range(&xrcd_ida->ida, xrcd_ida->min, xrcd_ida->max,
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GFP_KERNEL);
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if (id < 0) {
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ibdev_err(&hr_dev->ib_dev, "failed to alloc xrcdn(%d).\n", id);
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return -ENOMEM;
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}
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*xrcdn = (u32)id;
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return 0;
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}
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void hns_roce_init_xrcd_table(struct hns_roce_dev *hr_dev)
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{
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struct hns_roce_ida *xrcd_ida = &hr_dev->xrcd_ida;
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ida_init(&xrcd_ida->ida);
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xrcd_ida->max = hr_dev->caps.num_xrcds - 1;
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xrcd_ida->min = hr_dev->caps.reserved_xrcds;
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}
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int hns_roce_alloc_xrcd(struct ib_xrcd *ib_xrcd, struct ib_udata *udata)
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{
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struct hns_roce_dev *hr_dev = to_hr_dev(ib_xrcd->device);
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struct hns_roce_xrcd *xrcd = to_hr_xrcd(ib_xrcd);
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int ret;
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if (!(hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_XRC))
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return -EINVAL;
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ret = hns_roce_xrcd_alloc(hr_dev, &xrcd->xrcdn);
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if (ret)
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return ret;
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return 0;
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}
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int hns_roce_dealloc_xrcd(struct ib_xrcd *ib_xrcd, struct ib_udata *udata)
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{
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struct hns_roce_dev *hr_dev = to_hr_dev(ib_xrcd->device);
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u32 xrcdn = to_hr_xrcd(ib_xrcd)->xrcdn;
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ida_free(&hr_dev->xrcd_ida.ida, (int)xrcdn);
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return 0;
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}
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