diff options
author | Sagi Grimberg <sagig@mellanox.com> | 2014-02-23 16:19:10 +0400 |
---|---|---|
committer | Roland Dreier <roland@purestorage.com> | 2014-03-07 23:26:49 +0400 |
commit | 3bcdb17a5e88288ead90be3c107e754a6075a5b0 (patch) | |
tree | 622f8951b185bc090d4b0943786e5cb504f105e6 | |
parent | 2ac45934f8700e0c2a579f6ee85a56c6e9ea89d5 (diff) | |
download | linux-3bcdb17a5e88288ead90be3c107e754a6075a5b0.tar.xz |
IB/mlx5: Keep mlx5 MRs in a radix tree under device
This will be useful when processing signature errors on a specific
key. The mlx5 driver will lookup the matching mlx5 memory region
structure and mark it as dirty (contains signature errors).
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/main.c | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/mr.c | 24 | ||||
-rw-r--r-- | include/linux/mlx5/driver.h | 18 |
3 files changed, 43 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index a064f06e0cb8..96a0617f7609 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -446,6 +446,7 @@ int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev) mlx5_init_cq_table(dev); mlx5_init_qp_table(dev); mlx5_init_srq_table(dev); + mlx5_init_mr_table(dev); return 0; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c index bb746bbe73c6..4cc927649404 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mr.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c @@ -36,11 +36,24 @@ #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, 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; @@ -73,14 +86,21 @@ int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, 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); + 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; struct mlx5_destroy_mkey_mbox_in in; struct mlx5_destroy_mkey_mbox_out out; + unsigned long flags; int err; memset(&in, 0, sizeof(in)); @@ -95,6 +115,10 @@ int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr) if (out.hdr.status) return mlx5_cmd_status_to_err(&out.hdr); + write_lock_irqsave(&table->lock, flags); + radix_tree_delete(&table->tree, mlx5_base_mkey(mr->key)); + write_unlock_irqrestore(&table->lock, flags); + return err; } EXPORT_SYMBOL(mlx5_core_destroy_mkey); diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index e1cb657ccade..e562e01e59c7 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -491,6 +491,13 @@ struct mlx5_srq_table { struct radix_tree_root tree; }; +struct mlx5_mr_table { + /* protect radix tree + */ + rwlock_t lock; + struct radix_tree_root tree; +}; + struct mlx5_priv { char name[MLX5_MAX_NAME_LEN]; struct mlx5_eq_table eq_table; @@ -520,6 +527,10 @@ struct mlx5_priv { struct mlx5_cq_table cq_table; /* end: cq staff */ + /* start: mr staff */ + struct mlx5_mr_table mr_table; + /* end: mr staff */ + /* start: alloc staff */ struct mutex pgdir_mutex; struct list_head pgdir_list; @@ -667,6 +678,11 @@ static inline void mlx5_vfree(const void *addr) kfree(addr); } +static inline u32 mlx5_base_mkey(const u32 key) +{ + return key & 0xffffff00u; +} + int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev); void mlx5_dev_cleanup(struct mlx5_core_dev *dev); int mlx5_cmd_init(struct mlx5_core_dev *dev); @@ -701,6 +717,8 @@ int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, struct mlx5_query_srq_mbox_out *out); int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, u16 lwm, int is_srq); +void mlx5_init_mr_table(struct mlx5_core_dev *dev); +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, |