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Subject[PATCH net-next 02/13] net: hns3: create new cmdq hardware description structure hclge_comm_hw
Date
From: Jie Wang <wangjie125@huawei.com>

Currently PF and VF cmdq APIs use struct hclge(vf)_hw to describe cmdq
hardware information needed by hclge(vf)_cmd_send. There are a little
differences between its child struct hclge_cmq_ring and hclgevf_cmq_ring.
It is redundent to use two sets of structures to support same functions.

So this patch creates new set of common cmdq hardware description
structures(hclge_comm_hw) to unify PF and VF cmdq functions. The struct
hclge_desc is still kept to avoid too many meaningless replacement.

These new structures will be used to unify hclge(vf)_hw structures in PF
and VF cmdq APIs in next patches.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/Makefile | 1 +
.../hns3/hns3_common/hclge_comm_cmd.h | 55 +++++++++++++++++++
.../hisilicon/hns3/hns3pf/hclge_cmd.h | 9 +--
3 files changed, 57 insertions(+), 8 deletions(-)
create mode 100644 drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h

diff --git a/drivers/net/ethernet/hisilicon/hns3/Makefile b/drivers/net/ethernet/hisilicon/hns3/Makefile
index 32e24e0945f5..33e546cef288 100644
--- a/drivers/net/ethernet/hisilicon/hns3/Makefile
+++ b/drivers/net/ethernet/hisilicon/hns3/Makefile
@@ -6,6 +6,7 @@
ccflags-y += -I$(srctree)/$(src)
ccflags-y += -I$(srctree)/drivers/net/ethernet/hisilicon/hns3/hns3pf
ccflags-y += -I$(srctree)/drivers/net/ethernet/hisilicon/hns3/hns3vf
+ccflags-y += -I$(srctree)/drivers/net/ethernet/hisilicon/hns3/hns3_common

obj-$(CONFIG_HNS3) += hnae3.o

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
new file mode 100644
index 000000000000..f1e39003ceeb
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+// Copyright (c) 2021-2021 Hisilicon Limited.
+
+#ifndef __HCLGE_COMM_CMD_H
+#define __HCLGE_COMM_CMD_H
+#include <linux/types.h>
+
+#include "hnae3.h"
+
+#define HCLGE_DESC_DATA_LEN 6
+struct hclge_desc {
+ __le16 opcode;
+ __le16 flag;
+ __le16 retval;
+ __le16 rsv;
+ __le32 data[HCLGE_DESC_DATA_LEN];
+};
+
+struct hclge_comm_cmq_ring {
+ dma_addr_t desc_dma_addr;
+ struct hclge_desc *desc;
+ struct pci_dev *pdev;
+ u32 head;
+ u32 tail;
+
+ u16 buf_size;
+ u16 desc_num;
+ int next_to_use;
+ int next_to_clean;
+ u8 ring_type; /* cmq ring type */
+ spinlock_t lock; /* Command queue lock */
+};
+
+enum hclge_comm_cmd_status {
+ HCLGE_COMM_STATUS_SUCCESS = 0,
+ HCLGE_COMM_ERR_CSQ_FULL = -1,
+ HCLGE_COMM_ERR_CSQ_TIMEOUT = -2,
+ HCLGE_COMM_ERR_CSQ_ERROR = -3,
+};
+
+struct hclge_comm_cmq {
+ struct hclge_comm_cmq_ring csq;
+ struct hclge_comm_cmq_ring crq;
+ u16 tx_timeout;
+ enum hclge_comm_cmd_status last_status;
+};
+
+struct hclge_comm_hw {
+ void __iomem *io_base;
+ void __iomem *mem_base;
+ struct hclge_comm_cmq cmq;
+ unsigned long comm_state;
+};
+
+#endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index d24e59028798..cb1fdab0ee7c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -7,24 +7,17 @@
#include <linux/io.h>
#include <linux/etherdevice.h>
#include "hnae3.h"
+#include "hclge_comm_cmd.h"

#define HCLGE_CMDQ_TX_TIMEOUT 30000
#define HCLGE_CMDQ_CLEAR_WAIT_TIME 200
#define HCLGE_DESC_DATA_LEN 6

struct hclge_dev;
-struct hclge_desc {
- __le16 opcode;

#define HCLGE_CMDQ_RX_INVLD_B 0
#define HCLGE_CMDQ_RX_OUTVLD_B 1

- __le16 flag;
- __le16 retval;
- __le16 rsv;
- __le32 data[HCLGE_DESC_DATA_LEN];
-};
-
struct hclge_cmq_ring {
dma_addr_t desc_dma_addr;
struct hclge_desc *desc;
--
2.33.0
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