From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/net/ethernet/mellanox/mlx5/core/lib/mpfs.c | 57 +++++++++++++++++++++++++++++++++------------------------
1 files changed, 33 insertions(+), 24 deletions(-)
diff --git a/kernel/drivers/net/ethernet/mellanox/mlx5/core/lib/mpfs.c b/kernel/drivers/net/ethernet/mellanox/mlx5/core/lib/mpfs.c
index 9835955..8ff1631 100644
--- a/kernel/drivers/net/ethernet/mellanox/mlx5/core/lib/mpfs.c
+++ b/kernel/drivers/net/ethernet/mellanox/mlx5/core/lib/mpfs.c
@@ -33,6 +33,7 @@
#include <linux/etherdevice.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/mlx5_ifc.h>
+#include <linux/mlx5/mpfs.h>
#include <linux/mlx5/eswitch.h>
#include "mlx5_core.h"
#include "lib/mpfs.h"
@@ -40,8 +41,7 @@
/* HW L2 Table (MPFS) management */
static int set_l2table_entry_cmd(struct mlx5_core_dev *dev, u32 index, u8 *mac)
{
- u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)] = {0};
- u32 out[MLX5_ST_SZ_DW(set_l2_table_entry_out)] = {0};
+ u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)] = {};
u8 *in_mac_addr;
MLX5_SET(set_l2_table_entry_in, in, opcode, MLX5_CMD_OP_SET_L2_TABLE_ENTRY);
@@ -50,23 +50,23 @@
in_mac_addr = MLX5_ADDR_OF(set_l2_table_entry_in, in, mac_address);
ether_addr_copy(&in_mac_addr[2], mac);
- return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+ return mlx5_cmd_exec_in(dev, set_l2_table_entry, in);
}
static int del_l2table_entry_cmd(struct mlx5_core_dev *dev, u32 index)
{
- u32 in[MLX5_ST_SZ_DW(delete_l2_table_entry_in)] = {0};
- u32 out[MLX5_ST_SZ_DW(delete_l2_table_entry_out)] = {0};
+ u32 in[MLX5_ST_SZ_DW(delete_l2_table_entry_in)] = {};
MLX5_SET(delete_l2_table_entry_in, in, opcode, MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
MLX5_SET(delete_l2_table_entry_in, in, table_index, index);
- return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+ return mlx5_cmd_exec_in(dev, delete_l2_table_entry, in);
}
/* UC L2 table hash node */
struct l2table_node {
struct l2addr_node node;
u32 index; /* index in HW l2 table */
+ int ref_count;
};
struct mlx5_mpfs {
@@ -108,8 +108,7 @@
mutex_init(&mpfs->lock);
mpfs->size = l2table_size;
- mpfs->bitmap = kcalloc(BITS_TO_LONGS(l2table_size),
- sizeof(uintptr_t), GFP_KERNEL);
+ mpfs->bitmap = bitmap_zalloc(l2table_size, GFP_KERNEL);
if (!mpfs->bitmap) {
kfree(mpfs);
return -ENOMEM;
@@ -123,11 +122,11 @@
{
struct mlx5_mpfs *mpfs = dev->priv.mpfs;
- if (!MLX5_ESWITCH_MANAGER(dev))
+ if (!mpfs)
return;
WARN_ON(!hlist_empty(mpfs->hash));
- kfree(mpfs->bitmap);
+ bitmap_free(mpfs->bitmap);
kfree(mpfs);
}
@@ -135,43 +134,49 @@
{
struct mlx5_mpfs *mpfs = dev->priv.mpfs;
struct l2table_node *l2addr;
+ int err = 0;
u32 index;
- int err;
- if (!MLX5_ESWITCH_MANAGER(dev))
+ if (!mpfs)
return 0;
mutex_lock(&mpfs->lock);
l2addr = l2addr_hash_find(mpfs->hash, mac, struct l2table_node);
if (l2addr) {
- err = -EEXIST;
- goto abort;
+ l2addr->ref_count++;
+ goto out;
}
err = alloc_l2table_index(mpfs, &index);
if (err)
- goto abort;
+ goto out;
l2addr = l2addr_hash_add(mpfs->hash, mac, struct l2table_node, GFP_KERNEL);
if (!l2addr) {
- free_l2table_index(mpfs, index);
err = -ENOMEM;
- goto abort;
+ goto hash_add_err;
}
+
+ err = set_l2table_entry_cmd(dev, index, mac);
+ if (err)
+ goto set_table_entry_err;
l2addr->index = index;
- err = set_l2table_entry_cmd(dev, index, mac);
- if (err) {
- l2addr_hash_del(l2addr);
- free_l2table_index(mpfs, index);
- }
+ l2addr->ref_count = 1;
mlx5_core_dbg(dev, "MPFS mac added %pM, index (%d)\n", mac, index);
-abort:
+ goto out;
+
+set_table_entry_err:
+ l2addr_hash_del(l2addr);
+hash_add_err:
+ free_l2table_index(mpfs, index);
+out:
mutex_unlock(&mpfs->lock);
return err;
}
+EXPORT_SYMBOL(mlx5_mpfs_add_mac);
int mlx5_mpfs_del_mac(struct mlx5_core_dev *dev, u8 *mac)
{
@@ -180,7 +185,7 @@
int err = 0;
u32 index;
- if (!MLX5_ESWITCH_MANAGER(dev))
+ if (!mpfs)
return 0;
mutex_lock(&mpfs->lock);
@@ -191,6 +196,9 @@
goto unlock;
}
+ if (--l2addr->ref_count > 0)
+ goto unlock;
+
index = l2addr->index;
del_l2table_entry_cmd(dev, index);
l2addr_hash_del(l2addr);
@@ -200,3 +208,4 @@
mutex_unlock(&mpfs->lock);
return err;
}
+EXPORT_SYMBOL(mlx5_mpfs_del_mac);
--
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