From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/drivers/net/ethernet/mellanox/mlxsw/i2c.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/kernel/drivers/net/ethernet/mellanox/mlxsw/i2c.c b/kernel/drivers/net/ethernet/mellanox/mlxsw/i2c.c
index ce843ea..61d2f62 100644
--- a/kernel/drivers/net/ethernet/mellanox/mlxsw/i2c.c
+++ b/kernel/drivers/net/ethernet/mellanox/mlxsw/i2c.c
@@ -47,6 +47,7 @@
#define MLXSW_I2C_MBOX_SIZE_BITS 12
#define MLXSW_I2C_ADDR_BUF_SIZE 4
#define MLXSW_I2C_BLK_DEF 32
+#define MLXSW_I2C_BLK_MAX 100
#define MLXSW_I2C_RETRY 5
#define MLXSW_I2C_TIMEOUT_MSECS 5000
#define MLXSW_I2C_MAX_DATA_SIZE 256
@@ -428,7 +429,7 @@
} else {
/* No input mailbox is case of initialization query command. */
reg_size = MLXSW_I2C_MAX_DATA_SIZE;
- num = reg_size / mlxsw_i2c->block_size;
+ num = DIV_ROUND_UP(reg_size, mlxsw_i2c->block_size);
if (mutex_lock_interruptible(&mlxsw_i2c->cmd.lock) < 0) {
dev_err(&client->dev, "Could not acquire lock");
@@ -576,7 +577,7 @@
return -EOPNOTSUPP;
}
- mlxsw_i2c->block_size = max_t(u16, MLXSW_I2C_BLK_DEF,
+ mlxsw_i2c->block_size = min_t(u16, MLXSW_I2C_BLK_MAX,
min_t(u16, quirks->max_read_len,
quirks->max_write_len));
} else {
--
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