diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/mr.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/mr.c | 136 |
1 files changed, 124 insertions, 12 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c index 5b44e2e46da..184c3615f47 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mr.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c @@ -36,32 +36,69 @@ #include <linux/mlx5/cmd.h> #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) + 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_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; - memset(&out, 0, sizeof(out)); - spin_lock(&dev->priv.mkey_lock); + memset(&lout, 0, sizeof(lout)); + spin_lock_irq(&dev->priv.mkey_lock); key = dev->priv.mkey_key++; - spin_unlock(&dev->priv.mkey_lock); + 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); - err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out)); + 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 faile %d\n", err); + mlx5_core_dbg(dev, "cmd exec failed %d\n", err); return err; } - if (out.hdr.status) { - mlx5_core_dbg(dev, "status %d\n", out.hdr.status); - return mlx5_cmd_status_to_err(&out.hdr); + if (lout.hdr.status) { + mlx5_core_dbg(dev, "status %d\n", lout.hdr.status); + return mlx5_cmd_status_to_err(&lout.hdr); } - mr->key = mlx5_idx_to_mkey(be32_to_cpu(out.mkey) & 0xffffff) | key; - mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", be32_to_cpu(out.mkey), key, mr->key); + 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_irq(&table->lock); + err = radix_tree_insert(&table->tree, mlx5_base_mkey(mr->key), mr); + write_unlock_irq(&table->lock); + 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; } @@ -69,13 +106,25 @@ 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; struct mlx5_destroy_mkey_mbox_in in; struct mlx5_destroy_mkey_mbox_out out; + struct mlx5_core_mr *deleted_mr; + unsigned long flags; int err; memset(&in, 0, sizeof(in)); memset(&out, 0, sizeof(out)); + 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; + } + in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DESTROY_MKEY); in.mkey = cpu_to_be32(mlx5_mkey_to_idx(mr->key)); err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); @@ -134,3 +183,66 @@ int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, 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); |