1 files changed, 0 insertions, 369 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
deleted file mode 100644
index 4e78e8812a04..000000000000
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
+++ /dev/null
@@ -1,369 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-// Copyright (c) 2016-2017 Hisilicon Limited.
-
-#include <linux/device.h>
-#include <linux/dma-direction.h>
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include "hclgevf_cmd.h"
-#include "hclgevf_main.h"
-#include "hnae3.h"
-
-#define hclgevf_is_csq(ring) ((ring)->flag & HCLGEVF_TYPE_CSQ)
-#define hclgevf_ring_to_dma_dir(ring) (hclgevf_is_csq(ring) ? \
-					DMA_TO_DEVICE : DMA_FROM_DEVICE)
-#define cmq_ring_to_dev(ring)   (&(ring)->dev->pdev->dev)
-
-static int hclgevf_ring_space(struct hclgevf_cmq_ring *ring)
-{
-	int ntc = ring->next_to_clean;
-	int ntu = ring->next_to_use;
-	int used;
-
-	used = (ntu - ntc + ring->desc_num) % ring->desc_num;
-
-	return ring->desc_num - used - 1;
-}
-
-static int hclgevf_cmd_csq_clean(struct hclgevf_hw *hw)
-{
-	struct hclgevf_cmq_ring *csq = &hw->cmq.csq;
-	u16 ntc = csq->next_to_clean;
-	struct hclgevf_desc *desc;
-	int clean = 0;
-	u32 head;
-
-	desc = &csq->desc[ntc];
-	head = hclgevf_read_dev(hw, HCLGEVF_NIC_CSQ_HEAD_REG);
-	while (head != ntc) {
-		memset(desc, 0, sizeof(*desc));
-		ntc++;
-		if (ntc == csq->desc_num)
-			ntc = 0;
-		desc = &csq->desc[ntc];
-		clean++;
-	}
-	csq->next_to_clean = ntc;
-
-	return clean;
-}
-
-static bool hclgevf_cmd_csq_done(struct hclgevf_hw *hw)
-{
-	u32 head;
-
-	head = hclgevf_read_dev(hw, HCLGEVF_NIC_CSQ_HEAD_REG);
-
-	return head == hw->cmq.csq.next_to_use;
-}
-
-static bool hclgevf_is_special_opcode(u16 opcode)
-{
-	u16 spec_opcode[] = {0x30, 0x31, 0x32};
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(spec_opcode); i++) {
-		if (spec_opcode[i] == opcode)
-			return true;
-	}
-
-	return false;
-}
-
-static void hclgevf_cmd_config_regs(struct hclgevf_cmq_ring *ring)
-{
-	struct hclgevf_dev *hdev = ring->dev;
-	struct hclgevf_hw *hw = &hdev->hw;
-	u32 reg_val;
-
-	if (ring->flag == HCLGEVF_TYPE_CSQ) {
-		reg_val = (u32)ring->desc_dma_addr;
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_BASEADDR_L_REG, reg_val);
-		reg_val = (u32)((ring->desc_dma_addr >> 31) >> 1);
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_BASEADDR_H_REG, reg_val);
-
-		reg_val = (ring->desc_num >> HCLGEVF_NIC_CMQ_DESC_NUM_S);
-		reg_val |= HCLGEVF_NIC_CMQ_ENABLE;
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_DEPTH_REG, reg_val);
-
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_HEAD_REG, 0);
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_TAIL_REG, 0);
-	} else {
-		reg_val = (u32)ring->desc_dma_addr;
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_BASEADDR_L_REG, reg_val);
-		reg_val = (u32)((ring->desc_dma_addr >> 31) >> 1);
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_BASEADDR_H_REG, reg_val);
-
-		reg_val = (ring->desc_num >> HCLGEVF_NIC_CMQ_DESC_NUM_S);
-		reg_val |= HCLGEVF_NIC_CMQ_ENABLE;
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_DEPTH_REG, reg_val);
-
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_HEAD_REG, 0);
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_TAIL_REG, 0);
-	}
-}
-
-static void hclgevf_cmd_init_regs(struct hclgevf_hw *hw)
-{
-	hclgevf_cmd_config_regs(&hw->cmq.csq);
-	hclgevf_cmd_config_regs(&hw->cmq.crq);
-}
-
-static int hclgevf_alloc_cmd_desc(struct hclgevf_cmq_ring *ring)
-{
-	int size = ring->desc_num * sizeof(struct hclgevf_desc);
-
-	ring->desc = dma_alloc_coherent(cmq_ring_to_dev(ring), size,
-					&ring->desc_dma_addr, GFP_KERNEL);
-	if (!ring->desc)
-		return -ENOMEM;
-
-	return 0;
-}
-
-static void hclgevf_free_cmd_desc(struct hclgevf_cmq_ring *ring)
-{
-	int size  = ring->desc_num * sizeof(struct hclgevf_desc);
-
-	if (ring->desc) {
-		dma_free_coherent(cmq_ring_to_dev(ring), size,
-				  ring->desc, ring->desc_dma_addr);
-		ring->desc = NULL;
-	}
-}
-
-static int hclgevf_alloc_cmd_queue(struct hclgevf_dev *hdev, int ring_type)
-{
-	struct hclgevf_hw *hw = &hdev->hw;
-	struct hclgevf_cmq_ring *ring =
-		(ring_type == HCLGEVF_TYPE_CSQ) ? &hw->cmq.csq : &hw->cmq.crq;
-	int ret;
-
-	ring->dev = hdev;
-	ring->flag = ring_type;
-
-	/* allocate CSQ/CRQ descriptor */
-	ret = hclgevf_alloc_cmd_desc(ring);
-	if (ret)
-		dev_err(&hdev->pdev->dev, "failed(%d) to alloc %s desc\n", ret,
-			(ring_type == HCLGEVF_TYPE_CSQ) ? "CSQ" : "CRQ");
-
-	return ret;
-}
-
-void hclgevf_cmd_setup_basic_desc(struct hclgevf_desc *desc,
-				  enum hclgevf_opcode_type opcode, bool is_read)
-{
-	memset(desc, 0, sizeof(struct hclgevf_desc));
-	desc->opcode = cpu_to_le16(opcode);
-	desc->flag = cpu_to_le16(HCLGEVF_CMD_FLAG_NO_INTR |
-				 HCLGEVF_CMD_FLAG_IN);
-	if (is_read)
-		desc->flag |= cpu_to_le16(HCLGEVF_CMD_FLAG_WR);
-	else
-		desc->flag &= cpu_to_le16(~HCLGEVF_CMD_FLAG_WR);
-}
-
-/* hclgevf_cmd_send - send command to command queue
- * @hw: pointer to the hw struct
- * @desc: prefilled descriptor for describing the command
- * @num : the number of descriptors to be sent
- *
- * This is the main send command for command queue, it
- * sends the queue, cleans the queue, etc
- */
-int hclgevf_cmd_send(struct hclgevf_hw *hw, struct hclgevf_desc *desc, int num)
-{
-	struct hclgevf_dev *hdev = (struct hclgevf_dev *)hw->hdev;
-	struct hclgevf_desc *desc_to_use;
-	bool complete = false;
-	u32 timeout = 0;
-	int handle = 0;
-	int status = 0;
-	u16 retval;
-	u16 opcode;
-	int ntc;
-
-	spin_lock_bh(&hw->cmq.csq.lock);
-
-	if (num > hclgevf_ring_space(&hw->cmq.csq) ||
-	    test_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state)) {
-		spin_unlock_bh(&hw->cmq.csq.lock);
-		return -EBUSY;
-	}
-
-	/* Record the location of desc in the ring for this time
-	 * which will be use for hardware to write back
-	 */
-	ntc = hw->cmq.csq.next_to_use;
-	opcode = le16_to_cpu(desc[0].opcode);
-	while (handle < num) {
-		desc_to_use = &hw->cmq.csq.desc[hw->cmq.csq.next_to_use];
-		*desc_to_use = desc[handle];
-		(hw->cmq.csq.next_to_use)++;
-		if (hw->cmq.csq.next_to_use == hw->cmq.csq.desc_num)
-			hw->cmq.csq.next_to_use = 0;
-		handle++;
-	}
-
-	/* Write to hardware */
-	hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_TAIL_REG,
-			  hw->cmq.csq.next_to_use);
-
-	/* If the command is sync, wait for the firmware to write back,
-	 * if multi descriptors to be sent, use the first one to check
-	 */
-	if (HCLGEVF_SEND_SYNC(le16_to_cpu(desc->flag))) {
-		do {
-			if (hclgevf_cmd_csq_done(hw))
-				break;
-			udelay(1);
-			timeout++;
-		} while (timeout < hw->cmq.tx_timeout);
-	}
-
-	if (hclgevf_cmd_csq_done(hw)) {
-		complete = true;
-		handle = 0;
-
-		while (handle < num) {
-			/* Get the result of hardware write back */
-			desc_to_use = &hw->cmq.csq.desc[ntc];
-			desc[handle] = *desc_to_use;
-
-			if (likely(!hclgevf_is_special_opcode(opcode)))
-				retval = le16_to_cpu(desc[handle].retval);
-			else
-				retval = le16_to_cpu(desc[0].retval);
-
-			if ((enum hclgevf_cmd_return_status)retval ==
-			    HCLGEVF_CMD_EXEC_SUCCESS)
-				status = 0;
-			else
-				status = -EIO;
-			hw->cmq.last_status = (enum hclgevf_cmd_status)retval;
-			ntc++;
-			handle++;
-			if (ntc == hw->cmq.csq.desc_num)
-				ntc = 0;
-		}
-	}
-
-	if (!complete)
-		status = -EAGAIN;
-
-	/* Clean the command send queue */
-	handle = hclgevf_cmd_csq_clean(hw);
-	if (handle != num) {
-		dev_warn(&hdev->pdev->dev,
-			 "cleaned %d, need to clean %d\n", handle, num);
-	}
-
-	spin_unlock_bh(&hw->cmq.csq.lock);
-
-	return status;
-}
-
-static int  hclgevf_cmd_query_firmware_version(struct hclgevf_hw *hw,
-					       u32 *version)
-{
-	struct hclgevf_query_version_cmd *resp;
-	struct hclgevf_desc desc;
-	int status;
-
-	resp = (struct hclgevf_query_version_cmd *)desc.data;
-
-	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_QUERY_FW_VER, 1);
-	status = hclgevf_cmd_send(hw, &desc, 1);
-	if (!status)
-		*version = le32_to_cpu(resp->firmware);
-
-	return status;
-}
-
-int hclgevf_cmd_queue_init(struct hclgevf_dev *hdev)
-{
-	int ret;
-
-	/* Setup the lock for command queue */
-	spin_lock_init(&hdev->hw.cmq.csq.lock);
-	spin_lock_init(&hdev->hw.cmq.crq.lock);
-
-	hdev->hw.cmq.tx_timeout = HCLGEVF_CMDQ_TX_TIMEOUT;
-	hdev->hw.cmq.csq.desc_num = HCLGEVF_NIC_CMQ_DESC_NUM;
-	hdev->hw.cmq.crq.desc_num = HCLGEVF_NIC_CMQ_DESC_NUM;
-
-	ret = hclgevf_alloc_cmd_queue(hdev, HCLGEVF_TYPE_CSQ);
-	if (ret) {
-		dev_err(&hdev->pdev->dev,
-			"CSQ ring setup error %d\n", ret);
-		return ret;
-	}
-
-	ret = hclgevf_alloc_cmd_queue(hdev, HCLGEVF_TYPE_CRQ);
-	if (ret) {
-		dev_err(&hdev->pdev->dev,
-			"CRQ ring setup error %d\n", ret);
-		goto err_csq;
-	}
-
-	return 0;
-err_csq:
-	hclgevf_free_cmd_desc(&hdev->hw.cmq.csq);
-	return ret;
-}
-
-int hclgevf_cmd_init(struct hclgevf_dev *hdev)
-{
-	u32 version;
-	int ret;
-
-	spin_lock_bh(&hdev->hw.cmq.csq.lock);
-	spin_lock_bh(&hdev->hw.cmq.crq.lock);
-
-	/* initialize the pointers of async rx queue of mailbox */
-	hdev->arq.hdev = hdev;
-	hdev->arq.head = 0;
-	hdev->arq.tail = 0;
-	hdev->arq.count = 0;
-	hdev->hw.cmq.csq.next_to_clean = 0;
-	hdev->hw.cmq.csq.next_to_use = 0;
-	hdev->hw.cmq.crq.next_to_clean = 0;
-	hdev->hw.cmq.crq.next_to_use = 0;
-
-	hclgevf_cmd_init_regs(&hdev->hw);
-
-	spin_unlock_bh(&hdev->hw.cmq.crq.lock);
-	spin_unlock_bh(&hdev->hw.cmq.csq.lock);
-
-	clear_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
-
-	/* Check if there is new reset pending, because the higher level
-	 * reset may happen when lower level reset is being processed.
-	 */
-	if (hclgevf_is_reset_pending(hdev)) {
-		set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
-		return -EBUSY;
-	}
-
-	/* get firmware version */
-	ret = hclgevf_cmd_query_firmware_version(&hdev->hw, &version);
-	if (ret) {
-		dev_err(&hdev->pdev->dev,
-			"failed(%d) to query firmware version\n", ret);
-		return ret;
-	}
-	hdev->fw_version = version;
-
-	dev_info(&hdev->pdev->dev, "The firmware version is %08x\n", version);
-
-	return 0;
-}
-
-void hclgevf_cmd_uninit(struct hclgevf_dev *hdev)
-{
-	hclgevf_free_cmd_desc(&hdev->hw.cmq.csq);
-	hclgevf_free_cmd_desc(&hdev->hw.cmq.crq);
-}