// SPDX-License-Identifier: GPL-2.0-only
-/*
- * aQuantia Corporation Network Driver
- * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
+/* Atlantic Network Driver
+ *
+ * Copyright (C) 2014-2019 aQuantia Corporation
+ * Copyright (C) 2019-2020 Marvell International Ltd.
*/
/* File aq_hw_utils.c: Definitions of helper functions used across
*/
#include "aq_hw_utils.h"
+
+#include <linux/io-64-nonatomic-lo-hi.h>
+
#include "aq_hw.h"
#include "aq_nic.h"
*/
u64 aq_hw_read_reg64(struct aq_hw_s *hw, u32 reg)
{
- u64 value = aq_hw_read_reg(hw, reg);
+ u64 value = U64_MAX;
- value |= (u64)aq_hw_read_reg(hw, reg + 4) << 32;
+ if (hw->aq_nic_cfg->aq_hw_caps->op64bit)
+ value = readq(hw->mmio + reg);
+ else
+ value = lo_hi_readq(hw->mmio + reg);
+
+ if (value == U64_MAX &&
+ readl(hw->mmio + hw->aq_nic_cfg->aq_hw_caps->hw_alive_check_addr) == U32_MAX)
+ aq_utils_obj_set(&hw->flags, AQ_HW_FLAG_ERR_UNPLUG);
return value;
}
+void aq_hw_write_reg64(struct aq_hw_s *hw, u32 reg, u64 value)
+{
+ if (hw->aq_nic_cfg->aq_hw_caps->op64bit)
+ writeq(value, hw->mmio + reg);
+ else
+ lo_hi_writeq(value, hw->mmio + reg);
+}
+
int aq_hw_err_from_flags(struct aq_hw_s *hw)
{
int err = 0;
/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * aQuantia Corporation Network Driver
- * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
+/* Atlantic Network Driver
+ *
+ * Copyright (C) 2014-2019 aQuantia Corporation
+ * Copyright (C) 2019-2020 Marvell International Ltd.
*/
/* File aq_hw_utils.h: Declaration of helper functions used across hardware
u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg);
void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value);
u64 aq_hw_read_reg64(struct aq_hw_s *hw, u32 reg);
+void aq_hw_write_reg64(struct aq_hw_s *hw, u32 reg, u64 value);
int aq_hw_err_from_flags(struct aq_hw_s *hw);
int aq_hw_num_tcs(struct aq_hw_s *hw);
int aq_hw_q_per_tc(struct aq_hw_s *hw);