/*- * Copyright (c) 2013-2015, Mellanox Technologies, Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include #include #include #include "mlx5_core.h" void mlx5_init_mr_table(struct mlx5_core_dev *dev) { struct mlx5_mr_table *table = &dev->priv.mr_table; rwlock_init(&table->lock); INIT_RADIX_TREE(&table->tree, GFP_ATOMIC); } void mlx5_cleanup_mr_table(struct mlx5_core_dev *dev) { } int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, struct mlx5_create_mkey_mbox_in *in, int inlen, mlx5_cmd_cbk_t callback, void *context, struct mlx5_create_mkey_mbox_out *out) { struct mlx5_mr_table *table = &dev->priv.mr_table; struct mlx5_create_mkey_mbox_out lout; int err; u8 key; unsigned long irql; memset(&lout, 0, sizeof(lout)); spin_lock_irq(&dev->priv.mkey_lock); key = dev->priv.mkey_key++; spin_unlock_irq(&dev->priv.mkey_lock); in->seg.qpn_mkey7_0 |= cpu_to_be32(key); in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_MKEY); if (callback) { err = mlx5_cmd_exec_cb(dev, in, inlen, out, sizeof(*out), callback, context); return err; } else { err = mlx5_cmd_exec(dev, in, inlen, &lout, sizeof(lout)); } if (err) { mlx5_core_dbg(dev, "cmd exec failed %d\n", err); return err; } if (lout.hdr.status) { mlx5_core_dbg(dev, "status %d\n", lout.hdr.status); return mlx5_cmd_status_to_err(&lout.hdr); } mr->iova = be64_to_cpu(in->seg.start_addr); mr->size = be64_to_cpu(in->seg.len); mr->key = mlx5_idx_to_mkey(be32_to_cpu(lout.mkey) & 0xffffff) | key; mr->pd = be32_to_cpu(in->seg.flags_pd) & 0xffffff; mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", be32_to_cpu(lout.mkey), key, mr->key); /* connect to MR tree */ write_lock_irqsave(&table->lock, irql); err = radix_tree_insert(&table->tree, mlx5_base_mkey(mr->key), mr); write_unlock_irqrestore(&table->lock, irql); if (err) { mlx5_core_warn(dev, "failed radix tree insert of mr 0x%x, %d\n", mlx5_base_mkey(mr->key), err); mlx5_core_destroy_mkey(dev, mr); } return err; } EXPORT_SYMBOL(mlx5_core_create_mkey); int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr) { struct mlx5_mr_table *table = &dev->priv.mr_table; u32 in[MLX5_ST_SZ_DW(destroy_mkey_in)]; u32 out[MLX5_ST_SZ_DW(destroy_mkey_out)]; struct mlx5_core_mr *deleted_mr; unsigned long flags; memset(in, 0, sizeof(in)); write_lock_irqsave(&table->lock, flags); deleted_mr = radix_tree_delete(&table->tree, mlx5_base_mkey(mr->key)); write_unlock_irqrestore(&table->lock, flags); if (!deleted_mr) { mlx5_core_warn(dev, "failed radix tree delete of mr 0x%x\n", mlx5_base_mkey(mr->key)); return -ENOENT; } MLX5_SET(destroy_mkey_in, in, opcode, MLX5_CMD_OP_DESTROY_MKEY); MLX5_SET(destroy_mkey_in, in, mkey_index, mlx5_mkey_to_idx(mr->key)); memset(out, 0, sizeof(out)); return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out)); } EXPORT_SYMBOL(mlx5_core_destroy_mkey); int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, struct mlx5_query_mkey_mbox_out *out, int outlen) { struct mlx5_query_mkey_mbox_in in; int err; memset(&in, 0, sizeof(in)); memset(out, 0, outlen); in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_MKEY); in.mkey = cpu_to_be32(mlx5_mkey_to_idx(mr->key)); err = mlx5_cmd_exec(dev, &in, sizeof(in), out, outlen); if (err) return err; if (out->hdr.status) return mlx5_cmd_status_to_err(&out->hdr); return err; } EXPORT_SYMBOL(mlx5_core_query_mkey); int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, u32 *mkey) { struct mlx5_query_special_ctxs_mbox_in in; struct mlx5_query_special_ctxs_mbox_out out; int err; memset(&in, 0, sizeof(in)); memset(&out, 0, sizeof(out)); in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS); err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); if (err) return err; if (out.hdr.status) return mlx5_cmd_status_to_err(&out.hdr); *mkey = be32_to_cpu(out.dump_fill_mkey); return err; } EXPORT_SYMBOL(mlx5_core_dump_fill_mkey); int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn, int npsvs, u32 *sig_index) { struct mlx5_allocate_psv_in in; struct mlx5_allocate_psv_out out; int i, err; if (npsvs > MLX5_MAX_PSVS) return -EINVAL; memset(&in, 0, sizeof(in)); memset(&out, 0, sizeof(out)); in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_PSV); in.npsv_pd = cpu_to_be32((npsvs << 28) | pdn); err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); if (err) { mlx5_core_err(dev, "cmd exec failed %d\n", err); return err; } if (out.hdr.status) { mlx5_core_err(dev, "create_psv bad status %d\n", out.hdr.status); return mlx5_cmd_status_to_err(&out.hdr); } for (i = 0; i < npsvs; i++) sig_index[i] = be32_to_cpu(out.psv_idx[i]) & 0xffffff; return err; } EXPORT_SYMBOL(mlx5_core_create_psv); int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num) { struct mlx5_destroy_psv_in in; struct mlx5_destroy_psv_out out; int err; memset(&in, 0, sizeof(in)); memset(&out, 0, sizeof(out)); in.psv_number = cpu_to_be32(psv_num); in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DESTROY_PSV); err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); if (err) { mlx5_core_err(dev, "destroy_psv cmd exec failed %d\n", err); goto out; } if (out.hdr.status) { mlx5_core_err(dev, "destroy_psv bad status %d\n", out.hdr.status); err = mlx5_cmd_status_to_err(&out.hdr); goto out; } out: return err; } EXPORT_SYMBOL(mlx5_core_destroy_psv);