From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/infiniband/hw/mthca/mthca_pd.c | 81 ++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 drivers/infiniband/hw/mthca/mthca_pd.c (limited to 'drivers/infiniband/hw/mthca/mthca_pd.c') diff --git a/drivers/infiniband/hw/mthca/mthca_pd.c b/drivers/infiniband/hw/mthca/mthca_pd.c new file mode 100644 index 000000000..266f14e47 --- /dev/null +++ b/drivers/infiniband/hw/mthca/mthca_pd.c @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2004 Topspin Communications. All rights reserved. + * Copyright (c) 2005 Cisco Systems. All rights reserved. + * Copyright (c) 2005 Mellanox Technologies. 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 + +#include "mthca_dev.h" + +int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd) +{ + int err = 0; + + pd->privileged = privileged; + + atomic_set(&pd->sqp_count, 0); + pd->pd_num = mthca_alloc(&dev->pd_table.alloc); + if (pd->pd_num == -1) + return -ENOMEM; + + if (privileged) { + err = mthca_mr_alloc_notrans(dev, pd->pd_num, + MTHCA_MPT_FLAG_LOCAL_READ | + MTHCA_MPT_FLAG_LOCAL_WRITE, + &pd->ntmr); + if (err) + mthca_free(&dev->pd_table.alloc, pd->pd_num); + } + + return err; +} + +void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd) +{ + if (pd->privileged) + mthca_free_mr(dev, &pd->ntmr); + mthca_free(&dev->pd_table.alloc, pd->pd_num); +} + +int mthca_init_pd_table(struct mthca_dev *dev) +{ + return mthca_alloc_init(&dev->pd_table.alloc, + dev->limits.num_pds, + (1 << 24) - 1, + dev->limits.reserved_pds); +} + +void mthca_cleanup_pd_table(struct mthca_dev *dev) +{ + /* XXX check if any PDs are still allocated? */ + mthca_alloc_cleanup(&dev->pd_table.alloc); +} -- cgit v1.2.3