From 54c62e13ad765a346d220b2566f84c6092cf3564 Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Tue, 10 Mar 2020 10:22:27 +0200 Subject: [PATCH] {IB,net}/mlx5: Setup mkey variant before mr create command invocation On reg_mr_callback() mlx5_ib is recalculating the mkey variant which is wrong and will lead to using a different key variant than the one submitted to firmware on create mkey command invocation. To fix this, we store the mkey variant before invoking the firmware command and use it later on completion (reg_mr_callback). Signed-off-by: Saeed Mahameed Reviewed-by: Eli Cohen Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/mr.c | 7 ++----- drivers/net/ethernet/mellanox/mlx5/core/mr.c | 3 ++- 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 6fa0a83c19de..45c3282dd5e1 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -87,7 +87,6 @@ static void reg_mr_callback(int status, struct mlx5_async_work *context) struct mlx5_mr_cache *cache = &dev->cache; int c = order2idx(dev, mr->order); struct mlx5_cache_ent *ent = &cache->ent[c]; - u8 key; unsigned long flags; spin_lock_irqsave(&ent->lock, flags); @@ -102,10 +101,8 @@ static void reg_mr_callback(int status, struct mlx5_async_work *context) } mr->mmkey.type = MLX5_MKEY_MR; - spin_lock_irqsave(&dev->mdev->priv.mkey_lock, flags); - key = dev->mdev->priv.mkey_key++; - spin_unlock_irqrestore(&dev->mdev->priv.mkey_lock, flags); - mr->mmkey.key = mlx5_idx_to_mkey(MLX5_GET(create_mkey_out, mr->out, mkey_index)) | key; + mr->mmkey.key |= mlx5_idx_to_mkey( + MLX5_GET(create_mkey_out, mr->out, mkey_index)); cache->last_add = jiffies; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c index 42cc3c7ac5b6..770d13bb4f20 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mr.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c @@ -56,6 +56,7 @@ int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev, MLX5_SET(create_mkey_in, in, opcode, MLX5_CMD_OP_CREATE_MKEY); MLX5_SET(mkc, mkc, mkey_7_0, key); + mkey->key = key; if (callback) return mlx5_cmd_exec_cb(async_ctx, in, inlen, out, outlen, @@ -68,7 +69,7 @@ int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev, mkey_index = MLX5_GET(create_mkey_out, lout, mkey_index); mkey->iova = MLX5_GET64(mkc, mkc, start_addr); mkey->size = MLX5_GET64(mkc, mkc, len); - mkey->key = mlx5_idx_to_mkey(mkey_index) | key; + mkey->key |= mlx5_idx_to_mkey(mkey_index); mkey->pd = MLX5_GET(mkc, mkc, pd); mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", -- GitLab