// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Huawei HiNIC PCI Express Linux driver
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* Copyright(c) 2017 Huawei Technologies Co., Ltd
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/pci.h>
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#include <linux/device.h>
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#include <linux/semaphore.h>
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#include <linux/completion.h>
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#include <linux/slab.h>
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#include <net/devlink.h>
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#include <asm/barrier.h>
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#include "hinic_devlink.h"
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#include "hinic_hw_if.h"
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#include "hinic_hw_eqs.h"
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#include "hinic_hw_api_cmd.h"
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#include "hinic_hw_mgmt.h"
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#include "hinic_hw_dev.h"
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#define SYNC_MSG_ID_MASK 0x1FF
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#define SYNC_MSG_ID(pf_to_mgmt) ((pf_to_mgmt)->sync_msg_id)
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#define SYNC_MSG_ID_INC(pf_to_mgmt) (SYNC_MSG_ID(pf_to_mgmt) = \
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((SYNC_MSG_ID(pf_to_mgmt) + 1) & \
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SYNC_MSG_ID_MASK))
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#define MSG_SZ_IS_VALID(in_size) ((in_size) <= MAX_MSG_LEN)
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#define MGMT_MSG_LEN_MIN 20
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#define MGMT_MSG_LEN_STEP 16
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#define MGMT_MSG_RSVD_FOR_DEV 8
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#define SEGMENT_LEN 48
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#define MAX_PF_MGMT_BUF_SIZE 2048
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/* Data should be SEG LEN size aligned */
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#define MAX_MSG_LEN 2016
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#define MSG_NOT_RESP 0xFFFF
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#define MGMT_MSG_TIMEOUT 5000
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#define SET_FUNC_PORT_MBOX_TIMEOUT 30000
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#define SET_FUNC_PORT_MGMT_TIMEOUT 25000
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#define UPDATE_FW_MGMT_TIMEOUT 20000
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#define mgmt_to_pfhwdev(pf_mgmt) \
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container_of(pf_mgmt, struct hinic_pfhwdev, pf_to_mgmt)
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enum msg_segment_type {
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NOT_LAST_SEGMENT = 0,
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LAST_SEGMENT = 1,
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};
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enum mgmt_direction_type {
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MGMT_DIRECT_SEND = 0,
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MGMT_RESP = 1,
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};
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enum msg_ack_type {
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MSG_ACK = 0,
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MSG_NO_ACK = 1,
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};
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/**
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* hinic_register_mgmt_msg_cb - register msg handler for a msg from a module
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* @pf_to_mgmt: PF to MGMT channel
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* @mod: module in the chip that this handler will handle its messages
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* @handle: private data for the callback
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* @callback: the handler that will handle messages
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**/
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void hinic_register_mgmt_msg_cb(struct hinic_pf_to_mgmt *pf_to_mgmt,
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enum hinic_mod_type mod,
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void *handle,
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void (*callback)(void *handle,
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u8 cmd, void *buf_in,
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u16 in_size, void *buf_out,
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u16 *out_size))
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{
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struct hinic_mgmt_cb *mgmt_cb = &pf_to_mgmt->mgmt_cb[mod];
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mgmt_cb->cb = callback;
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mgmt_cb->handle = handle;
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mgmt_cb->state = HINIC_MGMT_CB_ENABLED;
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}
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/**
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* hinic_unregister_mgmt_msg_cb - unregister msg handler for a msg from a module
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* @pf_to_mgmt: PF to MGMT channel
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* @mod: module in the chip that this handler handles its messages
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**/
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void hinic_unregister_mgmt_msg_cb(struct hinic_pf_to_mgmt *pf_to_mgmt,
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enum hinic_mod_type mod)
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{
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struct hinic_mgmt_cb *mgmt_cb = &pf_to_mgmt->mgmt_cb[mod];
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mgmt_cb->state &= ~HINIC_MGMT_CB_ENABLED;
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while (mgmt_cb->state & HINIC_MGMT_CB_RUNNING)
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schedule();
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mgmt_cb->cb = NULL;
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}
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/**
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* prepare_header - prepare the header of the message
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* @pf_to_mgmt: PF to MGMT channel
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* @msg_len: the length of the message
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* @mod: module in the chip that will get the message
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* @ack_type: ask for response
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* @direction: the direction of the message
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* @cmd: command of the message
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* @msg_id: message id
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*
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* Return the prepared header value
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**/
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static u64 prepare_header(struct hinic_pf_to_mgmt *pf_to_mgmt,
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u16 msg_len, enum hinic_mod_type mod,
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enum msg_ack_type ack_type,
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enum mgmt_direction_type direction,
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u16 cmd, u16 msg_id)
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{
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struct hinic_hwif *hwif = pf_to_mgmt->hwif;
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return HINIC_MSG_HEADER_SET(msg_len, MSG_LEN) |
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HINIC_MSG_HEADER_SET(mod, MODULE) |
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HINIC_MSG_HEADER_SET(SEGMENT_LEN, SEG_LEN) |
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HINIC_MSG_HEADER_SET(ack_type, NO_ACK) |
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HINIC_MSG_HEADER_SET(0, ASYNC_MGMT_TO_PF) |
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HINIC_MSG_HEADER_SET(0, SEQID) |
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HINIC_MSG_HEADER_SET(LAST_SEGMENT, LAST) |
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HINIC_MSG_HEADER_SET(direction, DIRECTION) |
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HINIC_MSG_HEADER_SET(cmd, CMD) |
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HINIC_MSG_HEADER_SET(HINIC_HWIF_PCI_INTF(hwif), PCI_INTF) |
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HINIC_MSG_HEADER_SET(HINIC_HWIF_PF_IDX(hwif), PF_IDX) |
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HINIC_MSG_HEADER_SET(msg_id, MSG_ID);
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}
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/**
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* prepare_mgmt_cmd - prepare the mgmt command
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* @mgmt_cmd: pointer to the command to prepare
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* @header: pointer of the header for the message
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* @msg: the data of the message
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* @msg_len: the length of the message
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**/
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static void prepare_mgmt_cmd(u8 *mgmt_cmd, u64 *header, u8 *msg, u16 msg_len)
|
{
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memset(mgmt_cmd, 0, MGMT_MSG_RSVD_FOR_DEV);
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mgmt_cmd += MGMT_MSG_RSVD_FOR_DEV;
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memcpy(mgmt_cmd, header, sizeof(*header));
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mgmt_cmd += sizeof(*header);
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memcpy(mgmt_cmd, msg, msg_len);
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}
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/**
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* mgmt_msg_len - calculate the total message length
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* @msg_data_len: the length of the message data
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*
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* Return the total message length
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**/
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static u16 mgmt_msg_len(u16 msg_data_len)
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{
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/* RSVD + HEADER_SIZE + DATA_LEN */
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u16 msg_len = MGMT_MSG_RSVD_FOR_DEV + sizeof(u64) + msg_data_len;
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if (msg_len > MGMT_MSG_LEN_MIN)
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msg_len = MGMT_MSG_LEN_MIN +
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ALIGN((msg_len - MGMT_MSG_LEN_MIN),
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MGMT_MSG_LEN_STEP);
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else
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msg_len = MGMT_MSG_LEN_MIN;
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return msg_len;
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}
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/**
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* send_msg_to_mgmt - send message to mgmt by API CMD
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* @pf_to_mgmt: PF to MGMT channel
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* @mod: module in the chip that will get the message
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* @cmd: command of the message
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* @data: the msg data
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* @data_len: the msg data length
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* @ack_type: ask for response
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* @direction: the direction of the original message
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* @resp_msg_id: msg id to response for
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*
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* Return 0 - Success, negative - Failure
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**/
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static int send_msg_to_mgmt(struct hinic_pf_to_mgmt *pf_to_mgmt,
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enum hinic_mod_type mod, u8 cmd,
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u8 *data, u16 data_len,
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enum msg_ack_type ack_type,
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enum mgmt_direction_type direction,
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u16 resp_msg_id)
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{
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struct hinic_api_cmd_chain *chain;
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u64 header;
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u16 msg_id;
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msg_id = SYNC_MSG_ID(pf_to_mgmt);
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if (direction == MGMT_RESP) {
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header = prepare_header(pf_to_mgmt, data_len, mod, ack_type,
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direction, cmd, resp_msg_id);
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} else {
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SYNC_MSG_ID_INC(pf_to_mgmt);
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header = prepare_header(pf_to_mgmt, data_len, mod, ack_type,
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direction, cmd, msg_id);
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}
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prepare_mgmt_cmd(pf_to_mgmt->sync_msg_buf, &header, data, data_len);
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chain = pf_to_mgmt->cmd_chain[HINIC_API_CMD_WRITE_TO_MGMT_CPU];
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return hinic_api_cmd_write(chain, HINIC_NODE_ID_MGMT,
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pf_to_mgmt->sync_msg_buf,
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mgmt_msg_len(data_len));
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}
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/**
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* msg_to_mgmt_sync - send sync message to mgmt
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* @pf_to_mgmt: PF to MGMT channel
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* @mod: module in the chip that will get the message
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* @cmd: command of the message
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* @buf_in: the msg data
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* @in_size: the msg data length
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* @buf_out: response
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* @out_size: response length
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* @direction: the direction of the original message
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* @resp_msg_id: msg id to response for
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* @timeout: time-out period of waiting for response
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*
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* Return 0 - Success, negative - Failure
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**/
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static int msg_to_mgmt_sync(struct hinic_pf_to_mgmt *pf_to_mgmt,
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enum hinic_mod_type mod, u8 cmd,
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u8 *buf_in, u16 in_size,
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u8 *buf_out, u16 *out_size,
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enum mgmt_direction_type direction,
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u16 resp_msg_id, u32 timeout)
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{
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struct hinic_hwif *hwif = pf_to_mgmt->hwif;
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struct pci_dev *pdev = hwif->pdev;
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struct hinic_recv_msg *recv_msg;
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struct completion *recv_done;
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unsigned long timeo;
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u16 msg_id;
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int err;
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/* Lock the sync_msg_buf */
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down(&pf_to_mgmt->sync_msg_lock);
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recv_msg = &pf_to_mgmt->recv_resp_msg_from_mgmt;
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recv_done = &recv_msg->recv_done;
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if (resp_msg_id == MSG_NOT_RESP)
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msg_id = SYNC_MSG_ID(pf_to_mgmt);
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else
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msg_id = resp_msg_id;
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init_completion(recv_done);
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err = send_msg_to_mgmt(pf_to_mgmt, mod, cmd, buf_in, in_size,
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MSG_ACK, direction, resp_msg_id);
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if (err) {
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dev_err(&pdev->dev, "Failed to send sync msg to mgmt\n");
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goto unlock_sync_msg;
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}
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timeo = msecs_to_jiffies(timeout ? timeout : MGMT_MSG_TIMEOUT);
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if (!wait_for_completion_timeout(recv_done, timeo)) {
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dev_err(&pdev->dev, "MGMT timeout, MSG id = %d\n", msg_id);
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hinic_dump_aeq_info(pf_to_mgmt->hwdev);
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err = -ETIMEDOUT;
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goto unlock_sync_msg;
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}
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smp_rmb(); /* verify reading after completion */
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if (recv_msg->msg_id != msg_id) {
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dev_err(&pdev->dev, "incorrect MSG for id = %d\n", msg_id);
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err = -EFAULT;
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goto unlock_sync_msg;
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}
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if ((buf_out) && (recv_msg->msg_len <= MAX_PF_MGMT_BUF_SIZE)) {
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memcpy(buf_out, recv_msg->msg, recv_msg->msg_len);
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*out_size = recv_msg->msg_len;
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}
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unlock_sync_msg:
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up(&pf_to_mgmt->sync_msg_lock);
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return err;
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}
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/**
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* msg_to_mgmt_async - send message to mgmt without response
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* @pf_to_mgmt: PF to MGMT channel
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* @mod: module in the chip that will get the message
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* @cmd: command of the message
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* @buf_in: the msg data
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* @in_size: the msg data length
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* @direction: the direction of the original message
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* @resp_msg_id: msg id to response for
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*
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* Return 0 - Success, negative - Failure
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**/
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static int msg_to_mgmt_async(struct hinic_pf_to_mgmt *pf_to_mgmt,
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enum hinic_mod_type mod, u8 cmd,
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u8 *buf_in, u16 in_size,
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enum mgmt_direction_type direction,
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u16 resp_msg_id)
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{
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int err;
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/* Lock the sync_msg_buf */
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down(&pf_to_mgmt->sync_msg_lock);
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err = send_msg_to_mgmt(pf_to_mgmt, mod, cmd, buf_in, in_size,
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MSG_NO_ACK, direction, resp_msg_id);
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up(&pf_to_mgmt->sync_msg_lock);
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return err;
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}
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/**
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* hinic_msg_to_mgmt - send message to mgmt
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* @pf_to_mgmt: PF to MGMT channel
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* @mod: module in the chip that will get the message
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* @cmd: command of the message
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* @buf_in: the msg data
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* @in_size: the msg data length
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* @buf_out: response
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* @out_size: returned response length
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* @sync: sync msg or async msg
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*
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* Return 0 - Success, negative - Failure
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**/
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int hinic_msg_to_mgmt(struct hinic_pf_to_mgmt *pf_to_mgmt,
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enum hinic_mod_type mod, u8 cmd,
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void *buf_in, u16 in_size, void *buf_out, u16 *out_size,
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enum hinic_mgmt_msg_type sync)
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{
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struct hinic_hwif *hwif = pf_to_mgmt->hwif;
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struct pci_dev *pdev = hwif->pdev;
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u32 timeout = 0;
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if (sync != HINIC_MGMT_MSG_SYNC) {
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dev_err(&pdev->dev, "Invalid MGMT msg type\n");
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return -EINVAL;
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}
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if (!MSG_SZ_IS_VALID(in_size)) {
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dev_err(&pdev->dev, "Invalid MGMT msg buffer size\n");
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return -EINVAL;
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}
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if (HINIC_IS_VF(hwif)) {
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if (cmd == HINIC_PORT_CMD_SET_FUNC_STATE)
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timeout = SET_FUNC_PORT_MBOX_TIMEOUT;
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return hinic_mbox_to_pf(pf_to_mgmt->hwdev, mod, cmd, buf_in,
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in_size, buf_out, out_size, timeout);
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} else {
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if (cmd == HINIC_PORT_CMD_SET_FUNC_STATE)
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timeout = SET_FUNC_PORT_MGMT_TIMEOUT;
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else if (cmd == HINIC_PORT_CMD_UPDATE_FW)
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timeout = UPDATE_FW_MGMT_TIMEOUT;
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return msg_to_mgmt_sync(pf_to_mgmt, mod, cmd, buf_in, in_size,
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buf_out, out_size, MGMT_DIRECT_SEND,
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MSG_NOT_RESP, timeout);
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}
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}
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static void recv_mgmt_msg_work_handler(struct work_struct *work)
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{
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struct hinic_mgmt_msg_handle_work *mgmt_work =
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container_of(work, struct hinic_mgmt_msg_handle_work, work);
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struct hinic_pf_to_mgmt *pf_to_mgmt = mgmt_work->pf_to_mgmt;
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struct pci_dev *pdev = pf_to_mgmt->hwif->pdev;
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u8 *buf_out = pf_to_mgmt->mgmt_ack_buf;
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struct hinic_mgmt_cb *mgmt_cb;
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unsigned long cb_state;
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u16 out_size = 0;
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memset(buf_out, 0, MAX_PF_MGMT_BUF_SIZE);
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if (mgmt_work->mod >= HINIC_MOD_MAX) {
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dev_err(&pdev->dev, "Unknown MGMT MSG module = %d\n",
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mgmt_work->mod);
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kfree(mgmt_work->msg);
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kfree(mgmt_work);
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return;
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}
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mgmt_cb = &pf_to_mgmt->mgmt_cb[mgmt_work->mod];
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cb_state = cmpxchg(&mgmt_cb->state,
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HINIC_MGMT_CB_ENABLED,
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HINIC_MGMT_CB_ENABLED | HINIC_MGMT_CB_RUNNING);
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if ((cb_state == HINIC_MGMT_CB_ENABLED) && (mgmt_cb->cb))
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mgmt_cb->cb(mgmt_cb->handle, mgmt_work->cmd,
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mgmt_work->msg, mgmt_work->msg_len,
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buf_out, &out_size);
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else
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dev_err(&pdev->dev, "No MGMT msg handler, mod: %d, cmd: %d\n",
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mgmt_work->mod, mgmt_work->cmd);
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mgmt_cb->state &= ~HINIC_MGMT_CB_RUNNING;
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if (!mgmt_work->async_mgmt_to_pf)
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/* MGMT sent sync msg, send the response */
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msg_to_mgmt_async(pf_to_mgmt, mgmt_work->mod, mgmt_work->cmd,
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buf_out, out_size, MGMT_RESP,
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mgmt_work->msg_id);
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kfree(mgmt_work->msg);
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kfree(mgmt_work);
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}
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/**
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* mgmt_recv_msg_handler - handler for message from mgmt cpu
|
* @pf_to_mgmt: PF to MGMT channel
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* @recv_msg: received message details
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**/
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static void mgmt_recv_msg_handler(struct hinic_pf_to_mgmt *pf_to_mgmt,
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struct hinic_recv_msg *recv_msg)
|
{
|
struct hinic_mgmt_msg_handle_work *mgmt_work = NULL;
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struct pci_dev *pdev = pf_to_mgmt->hwif->pdev;
|
|
mgmt_work = kzalloc(sizeof(*mgmt_work), GFP_KERNEL);
|
if (!mgmt_work) {
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dev_err(&pdev->dev, "Allocate mgmt work memory failed\n");
|
return;
|
}
|
|
if (recv_msg->msg_len) {
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mgmt_work->msg = kzalloc(recv_msg->msg_len, GFP_KERNEL);
|
if (!mgmt_work->msg) {
|
dev_err(&pdev->dev, "Allocate mgmt msg memory failed\n");
|
kfree(mgmt_work);
|
return;
|
}
|
}
|
|
mgmt_work->pf_to_mgmt = pf_to_mgmt;
|
mgmt_work->msg_len = recv_msg->msg_len;
|
memcpy(mgmt_work->msg, recv_msg->msg, recv_msg->msg_len);
|
mgmt_work->msg_id = recv_msg->msg_id;
|
mgmt_work->mod = recv_msg->mod;
|
mgmt_work->cmd = recv_msg->cmd;
|
mgmt_work->async_mgmt_to_pf = recv_msg->async_mgmt_to_pf;
|
|
INIT_WORK(&mgmt_work->work, recv_mgmt_msg_work_handler);
|
queue_work(pf_to_mgmt->workq, &mgmt_work->work);
|
}
|
|
/**
|
* mgmt_resp_msg_handler - handler for a response message from mgmt cpu
|
* @pf_to_mgmt: PF to MGMT channel
|
* @recv_msg: received message details
|
**/
|
static void mgmt_resp_msg_handler(struct hinic_pf_to_mgmt *pf_to_mgmt,
|
struct hinic_recv_msg *recv_msg)
|
{
|
wmb(); /* verify writing all, before reading */
|
|
complete(&recv_msg->recv_done);
|
}
|
|
/**
|
* recv_mgmt_msg_handler - handler for a message from mgmt cpu
|
* @pf_to_mgmt: PF to MGMT channel
|
* @header: the header of the message
|
* @recv_msg: received message details
|
**/
|
static void recv_mgmt_msg_handler(struct hinic_pf_to_mgmt *pf_to_mgmt,
|
u64 *header, struct hinic_recv_msg *recv_msg)
|
{
|
struct hinic_hwif *hwif = pf_to_mgmt->hwif;
|
struct pci_dev *pdev = hwif->pdev;
|
int seq_id, seg_len;
|
u8 *msg_body;
|
|
seq_id = HINIC_MSG_HEADER_GET(*header, SEQID);
|
seg_len = HINIC_MSG_HEADER_GET(*header, SEG_LEN);
|
|
if (seq_id >= (MAX_MSG_LEN / SEGMENT_LEN)) {
|
dev_err(&pdev->dev, "recv big mgmt msg\n");
|
return;
|
}
|
|
msg_body = (u8 *)header + sizeof(*header);
|
memcpy(recv_msg->msg + seq_id * SEGMENT_LEN, msg_body, seg_len);
|
|
if (!HINIC_MSG_HEADER_GET(*header, LAST))
|
return;
|
|
recv_msg->cmd = HINIC_MSG_HEADER_GET(*header, CMD);
|
recv_msg->mod = HINIC_MSG_HEADER_GET(*header, MODULE);
|
recv_msg->async_mgmt_to_pf = HINIC_MSG_HEADER_GET(*header,
|
ASYNC_MGMT_TO_PF);
|
recv_msg->msg_len = HINIC_MSG_HEADER_GET(*header, MSG_LEN);
|
recv_msg->msg_id = HINIC_MSG_HEADER_GET(*header, MSG_ID);
|
|
if (HINIC_MSG_HEADER_GET(*header, DIRECTION) == MGMT_RESP)
|
mgmt_resp_msg_handler(pf_to_mgmt, recv_msg);
|
else
|
mgmt_recv_msg_handler(pf_to_mgmt, recv_msg);
|
}
|
|
/**
|
* mgmt_msg_aeqe_handler - handler for a mgmt message event
|
* @handle: PF to MGMT channel
|
* @data: the header of the message
|
* @size: unused
|
**/
|
static void mgmt_msg_aeqe_handler(void *handle, void *data, u8 size)
|
{
|
struct hinic_pf_to_mgmt *pf_to_mgmt = handle;
|
struct hinic_recv_msg *recv_msg;
|
u64 *header = (u64 *)data;
|
|
recv_msg = HINIC_MSG_HEADER_GET(*header, DIRECTION) ==
|
MGMT_DIRECT_SEND ?
|
&pf_to_mgmt->recv_msg_from_mgmt :
|
&pf_to_mgmt->recv_resp_msg_from_mgmt;
|
|
recv_mgmt_msg_handler(pf_to_mgmt, header, recv_msg);
|
}
|
|
/**
|
* alloc_recv_msg - allocate receive message memory
|
* @pf_to_mgmt: PF to MGMT channel
|
* @recv_msg: pointer that will hold the allocated data
|
*
|
* Return 0 - Success, negative - Failure
|
**/
|
static int alloc_recv_msg(struct hinic_pf_to_mgmt *pf_to_mgmt,
|
struct hinic_recv_msg *recv_msg)
|
{
|
struct hinic_hwif *hwif = pf_to_mgmt->hwif;
|
struct pci_dev *pdev = hwif->pdev;
|
|
recv_msg->msg = devm_kzalloc(&pdev->dev, MAX_PF_MGMT_BUF_SIZE,
|
GFP_KERNEL);
|
if (!recv_msg->msg)
|
return -ENOMEM;
|
|
recv_msg->buf_out = devm_kzalloc(&pdev->dev, MAX_PF_MGMT_BUF_SIZE,
|
GFP_KERNEL);
|
if (!recv_msg->buf_out)
|
return -ENOMEM;
|
|
return 0;
|
}
|
|
/**
|
* alloc_msg_buf - allocate all the message buffers of PF to MGMT channel
|
* @pf_to_mgmt: PF to MGMT channel
|
*
|
* Return 0 - Success, negative - Failure
|
**/
|
static int alloc_msg_buf(struct hinic_pf_to_mgmt *pf_to_mgmt)
|
{
|
struct hinic_hwif *hwif = pf_to_mgmt->hwif;
|
struct pci_dev *pdev = hwif->pdev;
|
int err;
|
|
err = alloc_recv_msg(pf_to_mgmt,
|
&pf_to_mgmt->recv_msg_from_mgmt);
|
if (err) {
|
dev_err(&pdev->dev, "Failed to allocate recv msg\n");
|
return err;
|
}
|
|
err = alloc_recv_msg(pf_to_mgmt,
|
&pf_to_mgmt->recv_resp_msg_from_mgmt);
|
if (err) {
|
dev_err(&pdev->dev, "Failed to allocate resp recv msg\n");
|
return err;
|
}
|
|
pf_to_mgmt->sync_msg_buf = devm_kzalloc(&pdev->dev,
|
MAX_PF_MGMT_BUF_SIZE,
|
GFP_KERNEL);
|
if (!pf_to_mgmt->sync_msg_buf)
|
return -ENOMEM;
|
|
pf_to_mgmt->mgmt_ack_buf = devm_kzalloc(&pdev->dev,
|
MAX_PF_MGMT_BUF_SIZE,
|
GFP_KERNEL);
|
if (!pf_to_mgmt->mgmt_ack_buf)
|
return -ENOMEM;
|
|
return 0;
|
}
|
|
/**
|
* hinic_pf_to_mgmt_init - initialize PF to MGMT channel
|
* @pf_to_mgmt: PF to MGMT channel
|
* @hwif: HW interface the PF to MGMT will use for accessing HW
|
*
|
* Return 0 - Success, negative - Failure
|
**/
|
int hinic_pf_to_mgmt_init(struct hinic_pf_to_mgmt *pf_to_mgmt,
|
struct hinic_hwif *hwif)
|
{
|
struct hinic_pfhwdev *pfhwdev = mgmt_to_pfhwdev(pf_to_mgmt);
|
struct hinic_hwdev *hwdev = &pfhwdev->hwdev;
|
struct pci_dev *pdev = hwif->pdev;
|
int err;
|
|
pf_to_mgmt->hwif = hwif;
|
pf_to_mgmt->hwdev = hwdev;
|
|
if (HINIC_IS_VF(hwif))
|
return 0;
|
|
err = hinic_health_reporters_create(hwdev->devlink_dev);
|
if (err)
|
return err;
|
|
sema_init(&pf_to_mgmt->sync_msg_lock, 1);
|
pf_to_mgmt->workq = create_singlethread_workqueue("hinic_mgmt");
|
if (!pf_to_mgmt->workq) {
|
dev_err(&pdev->dev, "Failed to initialize MGMT workqueue\n");
|
hinic_health_reporters_destroy(hwdev->devlink_dev);
|
return -ENOMEM;
|
}
|
pf_to_mgmt->sync_msg_id = 0;
|
|
err = alloc_msg_buf(pf_to_mgmt);
|
if (err) {
|
dev_err(&pdev->dev, "Failed to allocate msg buffers\n");
|
destroy_workqueue(pf_to_mgmt->workq);
|
hinic_health_reporters_destroy(hwdev->devlink_dev);
|
return err;
|
}
|
|
err = hinic_api_cmd_init(pf_to_mgmt->cmd_chain, hwif);
|
if (err) {
|
dev_err(&pdev->dev, "Failed to initialize cmd chains\n");
|
destroy_workqueue(pf_to_mgmt->workq);
|
hinic_health_reporters_destroy(hwdev->devlink_dev);
|
return err;
|
}
|
|
hinic_aeq_register_hw_cb(&hwdev->aeqs, HINIC_MSG_FROM_MGMT_CPU,
|
pf_to_mgmt,
|
mgmt_msg_aeqe_handler);
|
return 0;
|
}
|
|
/**
|
* hinic_pf_to_mgmt_free - free PF to MGMT channel
|
* @pf_to_mgmt: PF to MGMT channel
|
**/
|
void hinic_pf_to_mgmt_free(struct hinic_pf_to_mgmt *pf_to_mgmt)
|
{
|
struct hinic_pfhwdev *pfhwdev = mgmt_to_pfhwdev(pf_to_mgmt);
|
struct hinic_hwdev *hwdev = &pfhwdev->hwdev;
|
|
if (HINIC_IS_VF(hwdev->hwif))
|
return;
|
|
hinic_aeq_unregister_hw_cb(&hwdev->aeqs, HINIC_MSG_FROM_MGMT_CPU);
|
hinic_api_cmd_free(pf_to_mgmt->cmd_chain);
|
destroy_workqueue(pf_to_mgmt->workq);
|
hinic_health_reporters_destroy(hwdev->devlink_dev);
|
}
|
