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authorSagi Grimberg <sagig@mellanox.com>2014-02-23 13:19:10 +0100
committerRoland Dreier <roland@purestorage.com>2014-03-07 20:26:49 +0100
commit3bcdb17a5e88288ead90be3c107e754a6075a5b0 (patch)
tree622f8951b185bc090d4b0943786e5cb504f105e6 /drivers/net/ethernet
parentIB/mlx5: Remove MTT access mode from umr flags helper function (diff)
downloadlinux-3bcdb17a5e88288ead90be3c107e754a6075a5b0.tar.xz
linux-3bcdb17a5e88288ead90be3c107e754a6075a5b0.zip
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>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/main.c1
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/mr.c24
2 files changed, 25 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);