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openEuler_kernel_rk3588/drivers/net/ethernet/huawei/hinic/hinic_mbox.c
ardu 24cacf092e init
2026-01-29 22:25:33 +08:00

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// SPDX-License-Identifier: GPL-2.0
/* Huawei HiNIC PCI Express Linux driver
* Copyright(c) 2017 Huawei Technologies Co., Ltd
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": [COMM]" fmt
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/completion.h>
#include <linux/semaphore.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include "ossl_knl.h"
#include "hinic_hw.h"
#include "hinic_hw_mgmt.h"
#include "hinic_hwdev.h"
#include "hinic_csr.h"
#include "hinic_hwif.h"
#include "hinic_eqs.h"
#include "hinic_mbox.h"
#define HINIC_MBOX_INT_DST_FUNC_SHIFT 0
#define HINIC_MBOX_INT_DST_AEQN_SHIFT 10
#define HINIC_MBOX_INT_SRC_RESP_AEQN_SHIFT 12
#define HINIC_MBOX_INT_STAT_DMA_SHIFT 14
/* The size of data to be send (unit of 4 bytes) */
#define HINIC_MBOX_INT_TX_SIZE_SHIFT 20
/* SO_RO(strong order, relax order) */
#define HINIC_MBOX_INT_STAT_DMA_SO_RO_SHIFT 25
#define HINIC_MBOX_INT_WB_EN_SHIFT 28
#define HINIC_MBOX_INT_DST_FUNC_MASK 0x3FF
#define HINIC_MBOX_INT_DST_AEQN_MASK 0x3
#define HINIC_MBOX_INT_SRC_RESP_AEQN_MASK 0x3
#define HINIC_MBOX_INT_STAT_DMA_MASK 0x3F
#define HINIC_MBOX_INT_TX_SIZE_MASK 0x1F
#define HINIC_MBOX_INT_STAT_DMA_SO_RO_MASK 0x3
#define HINIC_MBOX_INT_WB_EN_MASK 0x1
#define HINIC_MBOX_INT_SET(val, field) \
(((val) & HINIC_MBOX_INT_##field##_MASK) << \
HINIC_MBOX_INT_##field##_SHIFT)
enum hinic_mbox_tx_status {
TX_NOT_DONE = 1,
};
#define HINIC_MBOX_CTRL_TRIGGER_AEQE_SHIFT 0
/* specifies the issue request for the message data.
* 0 - Tx request is done;
* 1 - Tx request is in process.
*/
#define HINIC_MBOX_CTRL_TX_STATUS_SHIFT 1
#define HINIC_MBOX_CTRL_TRIGGER_AEQE_MASK 0x1
#define HINIC_MBOX_CTRL_TX_STATUS_MASK 0x1
#define HINIC_MBOX_CTRL_SET(val, field) \
(((val) & HINIC_MBOX_CTRL_##field##_MASK) << \
HINIC_MBOX_CTRL_##field##_SHIFT)
#define HINIC_MBOX_HEADER_MSG_LEN_SHIFT 0
#define HINIC_MBOX_HEADER_MODULE_SHIFT 11
#define HINIC_MBOX_HEADER_SEG_LEN_SHIFT 16
#define HINIC_MBOX_HEADER_NO_ACK_SHIFT 22
#define HINIC_MBOX_HEADER_SEQID_SHIFT 24
#define HINIC_MBOX_HEADER_LAST_SHIFT 30
/* specifies the mailbox message direction
* 0 - send
* 1 - receive
*/
#define HINIC_MBOX_HEADER_DIRECTION_SHIFT 31
#define HINIC_MBOX_HEADER_CMD_SHIFT 32
#define HINIC_MBOX_HEADER_MSG_ID_SHIFT 40
#define HINIC_MBOX_HEADER_STATUS_SHIFT 48
#define HINIC_MBOX_HEADER_SRC_GLB_FUNC_IDX_SHIFT 54
#define HINIC_MBOX_HEADER_MSG_LEN_MASK 0x7FF
#define HINIC_MBOX_HEADER_MODULE_MASK 0x1F
#define HINIC_MBOX_HEADER_SEG_LEN_MASK 0x3F
#define HINIC_MBOX_HEADER_NO_ACK_MASK 0x1
#define HINIC_MBOX_HEADER_SEQID_MASK 0x3F
#define HINIC_MBOX_HEADER_LAST_MASK 0x1
#define HINIC_MBOX_HEADER_DIRECTION_MASK 0x1
#define HINIC_MBOX_HEADER_CMD_MASK 0xFF
#define HINIC_MBOX_HEADER_MSG_ID_MASK 0xFF
#define HINIC_MBOX_HEADER_STATUS_MASK 0x3F
#define HINIC_MBOX_HEADER_SRC_GLB_FUNC_IDX_MASK 0x3FF
#define HINIC_MBOX_HEADER_GET(val, field) \
(((val) >> HINIC_MBOX_HEADER_##field##_SHIFT) & \
HINIC_MBOX_HEADER_##field##_MASK)
#define HINIC_MBOX_HEADER_SET(val, field) \
((u64)((val) & HINIC_MBOX_HEADER_##field##_MASK) << \
HINIC_MBOX_HEADER_##field##_SHIFT)
#define MBOX_SEGLEN_MASK \
HINIC_MBOX_HEADER_SET(HINIC_MBOX_HEADER_SEG_LEN_MASK, SEG_LEN)
#define HINIC_MBOX_SEG_LEN 48
#define HINIC_MBOX_COMP_TIME 8000U
#define MBOX_MSG_POLLING_TIMEOUT 8000
#define MBOX_MSG_RETRY_ACK_TIMEOUT 1000
#define HINIC_MBOX_DATA_SIZE 2040
#define MBOX_MAX_BUF_SZ 2048UL
#define MBOX_HEADER_SZ 8
#define MBOX_INFO_SZ 4
/* MBOX size is 64B, 8B for mbox_header, 4B reserved */
#define MBOX_SEG_LEN 48
#define MBOX_SEG_LEN_ALIGN 4
#define MBOX_WB_STATUS_LEN 16UL
/* mbox write back status is 16B, only first 4B is used */
#define MBOX_WB_STATUS_ERRCODE_MASK 0xFFFF
#define MBOX_WB_STATUS_MASK 0xFF
#define MBOX_WB_ERROR_CODE_MASK 0xFF00
#define MBOX_WB_STATUS_FINISHED_SUCCESS 0xFF
#define MBOX_WB_STATUS_FINISHED_WITH_ERR 0xFE
#define MBOX_WB_STATUS_NOT_FINISHED 0x00
#define MBOX_STATUS_FINISHED(wb) \
(((wb) & MBOX_WB_STATUS_MASK) != MBOX_WB_STATUS_NOT_FINISHED)
#define MBOX_STATUS_SUCCESS(wb) \
(((wb) & MBOX_WB_STATUS_MASK) == MBOX_WB_STATUS_FINISHED_SUCCESS)
#define MBOX_STATUS_ERRCODE(wb) \
((wb) & MBOX_WB_ERROR_CODE_MASK)
#define SEQ_ID_START_VAL 0
#define SEQ_ID_MAX_VAL 42
#define MBOX_LAST_SEG_MAX_LEN (MBOX_MAX_BUF_SZ - \
SEQ_ID_MAX_VAL * MBOX_SEG_LEN)
#define DST_AEQ_IDX_DEFAULT_VAL 0
#define SRC_AEQ_IDX_DEFAULT_VAL 0
#define NO_DMA_ATTRIBUTE_VAL 0
#define HINIC_MGMT_RSP_AEQN 0
#define HINIC_MBOX_RSP_AEQN 2
#define HINIC_MBOX_RECV_AEQN 0
#define MBOX_MSG_NO_DATA_LEN 1
#define MBOX_BODY_FROM_HDR(header) ((u8 *)(header) + MBOX_HEADER_SZ)
#define MBOX_AREA(hwif) \
((hwif)->cfg_regs_base + HINIC_FUNC_CSR_MAILBOX_DATA_OFF)
#define IS_PF_OR_PPF_SRC(src_func_idx) ((src_func_idx) < HINIC_MAX_PF_FUNCS)
#define MBOX_RESPONSE_ERROR 0x1
#define MBOX_MSG_ID_MASK 0xFF
#define MBOX_MSG_ID(func_to_func) ((func_to_func)->send_msg_id)
#define MBOX_MSG_ID_INC(func_to_func) (MBOX_MSG_ID(func_to_func) = \
(MBOX_MSG_ID(func_to_func) + 1) & MBOX_MSG_ID_MASK)
#define FUNC_ID_OFF_SET_8B 8
#define FUNC_ID_OFF_SET_10B 10
enum hinic_hwif_direction_type {
HINIC_HWIF_DIRECT_SEND = 0,
HINIC_HWIF_RESPONSE = 1,
};
enum mbox_seg_type {
NOT_LAST_SEG,
LAST_SEG,
};
enum mbox_ordering_type {
STRONG_ORDER,
};
enum mbox_write_back_type {
WRITE_BACK = 1,
};
enum mbox_aeq_trig_type {
NOT_TRIGGER,
TRIGGER,
};
struct hinic_set_random_id {
u8 status;
u8 version;
u8 rsvd0[6];
u8 vf_in_pf;
u8 rsvd1;
u16 func_idx;
u32 random_id;
};
static bool check_func_id(struct hinic_hwdev *hwdev, u16 src_func_idx,
const void *buf_in, u16 in_size, u16 offset)
{
u16 func_idx;
if (in_size < offset + sizeof(func_idx)) {
sdk_warn(hwdev->dev_hdl,
"Receive mailbox msg len: %d less than %ld Bytes is invalid\n",
in_size, offset + sizeof(func_idx));
return false;
}
func_idx = *((u16 *)((u8 *)buf_in + offset));
if (src_func_idx != func_idx) {
sdk_warn(hwdev->dev_hdl,
"Reveive mailbox function id(0x%x) not equal to msg function id(0x%x)\n",
src_func_idx, func_idx);
return false;
}
return true;
}
bool hinic_mbox_check_func_id_8B(struct hinic_hwdev *hwdev, u16 func_idx,
void *buf_in, u16 in_size)
{
return check_func_id(hwdev, func_idx, buf_in, in_size,
FUNC_ID_OFF_SET_8B);
}
bool hinic_mbox_check_func_id_10B(struct hinic_hwdev *hwdev, u16 func_idx,
void *buf_in, u16 in_size)
{
return check_func_id(hwdev, func_idx, buf_in, in_size,
FUNC_ID_OFF_SET_10B);
}
static int send_mbox_to_func(struct hinic_mbox_func_to_func *func_to_func,
enum hinic_mod_type mod, u16 cmd, void *msg,
u16 msg_len, u16 dst_func,
enum hinic_hwif_direction_type direction,
enum hinic_mbox_ack_type ack_type,
struct mbox_msg_info *msg_info);
/**
* hinic_register_ppf_mbox_cb - register mbox callback for ppf
* @hwdev: the pointer to hw device
* @mod: specific mod that the callback will handle
* @callback: callback function
* Return: 0 - success, negative - failure
*/
int hinic_register_ppf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod,
hinic_ppf_mbox_cb callback)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
if (mod >= HINIC_MOD_MAX)
return -EFAULT;
func_to_func->ppf_mbox_cb[mod] = callback;
set_bit(HINIC_PPF_MBOX_CB_REG, &func_to_func->ppf_mbox_cb_state[mod]);
return 0;
}
/**
* hinic_register_pf_mbox_cb - register mbox callback for pf
* @hwdev: the pointer to hw device
* @mod: specific mod that the callback will handle
* @callback: callback function
* Return: 0 - success, negative - failure
*/
int hinic_register_pf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod,
hinic_pf_mbox_cb callback)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
if (mod >= HINIC_MOD_MAX)
return -EFAULT;
func_to_func->pf_mbox_cb[mod] = callback;
set_bit(HINIC_PF_MBOX_CB_REG, &func_to_func->pf_mbox_cb_state[mod]);
return 0;
}
/**
* hinic_register_vf_mbox_cb - register mbox callback for vf
* @hwdev: the pointer to hw device
* @mod: specific mod that the callback will handle
* @callback: callback function
* Return: 0 - success, negative - failure
*/
int hinic_register_vf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod,
hinic_vf_mbox_cb callback)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
if (mod >= HINIC_MOD_MAX)
return -EFAULT;
func_to_func->vf_mbox_cb[mod] = callback;
set_bit(HINIC_VF_MBOX_CB_REG, &func_to_func->vf_mbox_cb_state[mod]);
return 0;
}
/**
* hinic_register_ppf_to_pf_mbox_cb - register mbox callback for pf from ppf
* @hwdev: the pointer to hw device
* @mod: specific mod that the callback will handle
* @callback: callback function
* Return: 0 - success, negative - failure
*/
int hinic_register_ppf_to_pf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod,
hinic_pf_recv_from_ppf_mbox_cb callback)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
if (mod >= HINIC_MOD_MAX)
return -EFAULT;
func_to_func->pf_recv_from_ppf_mbox_cb[mod] = callback;
set_bit(HINIC_PPF_TO_PF_MBOX_CB_REG,
&func_to_func->ppf_to_pf_mbox_cb_state[mod]);
return 0;
}
/**
* hinic_unregister_ppf_mbox_cb - unregister the mbox callback for ppf
* @hwdev: the pointer to hw device
* @mod: specific mod that the callback will handle
*/
void hinic_unregister_ppf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
clear_bit(HINIC_PPF_MBOX_CB_REG, &func_to_func->ppf_mbox_cb_state[mod]);
while (test_bit(HINIC_PPF_MBOX_CB_RUNNING,
&func_to_func->ppf_mbox_cb_state[mod]))
usleep_range(900, 1000);
func_to_func->ppf_mbox_cb[mod] = NULL;
}
/**
* hinic_unregister_ppf_mbox_cb - unregister the mbox callback for pf
* @hwdev: the pointer to hw device
* @mod: specific mod that the callback will handle
*/
void hinic_unregister_pf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
clear_bit(HINIC_PF_MBOX_CB_REG, &func_to_func->pf_mbox_cb_state[mod]);
while (test_bit(HINIC_PF_MBOX_CB_RUNNING,
&func_to_func->pf_mbox_cb_state[mod]))
usleep_range(900, 1000);
func_to_func->pf_mbox_cb[mod] = NULL;
}
/**
* hinic_unregister_vf_mbox_cb - unregister the mbox callback for vf
* @hwdev:the pointer to hw device
* @mod:specific mod that the callback will handle
*/
void hinic_unregister_vf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
clear_bit(HINIC_VF_MBOX_CB_REG, &func_to_func->vf_mbox_cb_state[mod]);
while (test_bit(HINIC_VF_MBOX_CB_RUNNING,
&func_to_func->vf_mbox_cb_state[mod]))
usleep_range(900, 1000);
func_to_func->vf_mbox_cb[mod] = NULL;
}
/**
* hinic_unregister_ppf_mbox_cb - unregister the mbox callback for pf from ppf
* @hwdev: the pointer to hw device
* @mod: specific mod that the callback will handle
*/
void hinic_unregister_ppf_to_pf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
clear_bit(HINIC_PPF_TO_PF_MBOX_CB_REG,
&func_to_func->ppf_to_pf_mbox_cb_state[mod]);
while (test_bit(HINIC_PPF_TO_PF_MBOX_CB_RUNNIG,
&func_to_func->ppf_to_pf_mbox_cb_state[mod]))
usleep_range(900, 1000);
func_to_func->pf_recv_from_ppf_mbox_cb[mod] = NULL;
}
int vf_to_pf_handler(void *handle, u16 vf_id, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size)
{
struct hinic_mbox_func_to_func *func_to_func = handle;
sdk_warn(func_to_func->hwdev->dev_hdl, "Not support vf command yet/n");
return -EFAULT;
}
static int recv_vf_mbox_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox,
void *buf_out, u16 *out_size)
{
hinic_vf_mbox_cb cb;
int ret;
if (recv_mbox->mod >= HINIC_MOD_MAX) {
sdk_warn(func_to_func->hwdev->dev_hdl, "Receive illegal mbox message, mod = %d\n",
recv_mbox->mod);
return -EINVAL;
}
set_bit(HINIC_VF_MBOX_CB_RUNNING,
&func_to_func->vf_mbox_cb_state[recv_mbox->mod]);
cb = func_to_func->vf_mbox_cb[recv_mbox->mod];
if (cb && test_bit(HINIC_VF_MBOX_CB_REG,
&func_to_func->vf_mbox_cb_state[recv_mbox->mod])) {
ret = cb(func_to_func->hwdev, recv_mbox->cmd, recv_mbox->mbox,
recv_mbox->mbox_len, buf_out, out_size);
} else {
sdk_warn(func_to_func->hwdev->dev_hdl, "VF mbox cb is not registered\n");
ret = -EINVAL;
}
clear_bit(HINIC_VF_MBOX_CB_RUNNING,
&func_to_func->vf_mbox_cb_state[recv_mbox->mod]);
return ret;
}
static int
recv_pf_from_ppf_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox,
void *buf_out, u16 *out_size)
{
hinic_pf_recv_from_ppf_mbox_cb cb;
enum hinic_mod_type mod = recv_mbox->mod;
int ret;
if (mod >= HINIC_MOD_MAX) {
sdk_warn(func_to_func->hwdev->dev_hdl, "Receive illegal mbox message, mod = %d\n",
mod);
return -EINVAL;
}
set_bit(HINIC_PPF_TO_PF_MBOX_CB_RUNNIG,
&func_to_func->ppf_to_pf_mbox_cb_state[mod]);
cb = func_to_func->pf_recv_from_ppf_mbox_cb[mod];
if (cb && test_bit(HINIC_PPF_TO_PF_MBOX_CB_REG,
&func_to_func->ppf_to_pf_mbox_cb_state[mod])) {
ret = cb(func_to_func->hwdev, recv_mbox->cmd,
recv_mbox->mbox, recv_mbox->mbox_len,
buf_out, out_size);
} else {
sdk_warn(func_to_func->hwdev->dev_hdl, "PF recvice ppf mailbox callback is not registered\n");
ret = -EINVAL;
}
clear_bit(HINIC_PPF_TO_PF_MBOX_CB_RUNNIG,
&func_to_func->ppf_to_pf_mbox_cb_state[mod]);
return ret;
}
static int recv_ppf_mbox_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox,
u8 pf_id, void *buf_out, u16 *out_size)
{
hinic_ppf_mbox_cb cb;
u16 vf_id = 0;
int ret;
if (recv_mbox->mod >= HINIC_MOD_MAX) {
sdk_warn(func_to_func->hwdev->dev_hdl, "Receive illegal mbox message, mod = %d\n",
recv_mbox->mod);
return -EINVAL;
}
set_bit(HINIC_PPF_MBOX_CB_RUNNING,
&func_to_func->ppf_mbox_cb_state[recv_mbox->mod]);
cb = func_to_func->ppf_mbox_cb[recv_mbox->mod];
if (cb && test_bit(HINIC_PPF_MBOX_CB_REG,
&func_to_func->ppf_mbox_cb_state[recv_mbox->mod])) {
ret = cb(func_to_func->hwdev, pf_id, vf_id, recv_mbox->cmd,
recv_mbox->mbox, recv_mbox->mbox_len,
buf_out, out_size);
} else {
sdk_warn(func_to_func->hwdev->dev_hdl, "PPF mbox cb is not registered, mod = %d\n",
recv_mbox->mod);
ret = -EINVAL;
}
clear_bit(HINIC_PPF_MBOX_CB_RUNNING,
&func_to_func->ppf_mbox_cb_state[recv_mbox->mod]);
return ret;
}
static int
recv_pf_from_vf_mbox_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox,
u16 src_func_idx, void *buf_out,
u16 *out_size)
{
hinic_pf_mbox_cb cb;
u16 vf_id = 0;
int ret;
if (recv_mbox->mod >= HINIC_MOD_MAX) {
sdk_warn(func_to_func->hwdev->dev_hdl, "Receive illegal mbox message, mod = %d\n",
recv_mbox->mod);
return -EINVAL;
}
set_bit(HINIC_PF_MBOX_CB_RUNNING,
&func_to_func->pf_mbox_cb_state[recv_mbox->mod]);
cb = func_to_func->pf_mbox_cb[recv_mbox->mod];
if (cb && test_bit(HINIC_PF_MBOX_CB_REG,
&func_to_func->pf_mbox_cb_state[recv_mbox->mod])) {
vf_id = src_func_idx -
hinic_glb_pf_vf_offset(func_to_func->hwdev);
ret = cb(func_to_func->hwdev, vf_id, recv_mbox->cmd,
recv_mbox->mbox, recv_mbox->mbox_len,
buf_out, out_size);
} else {
sdk_warn(func_to_func->hwdev->dev_hdl, "PF mbox mod(0x%x) cb is not registered\n",
recv_mbox->mod);
ret = -EINVAL;
}
clear_bit(HINIC_PF_MBOX_CB_RUNNING,
&func_to_func->pf_mbox_cb_state[recv_mbox->mod]);
return ret;
}
bool hinic_mbox_check_cmd_valid(struct hinic_hwdev *hwdev,
struct vf_cmd_check_handle *cmd_handle,
u16 vf_id, u8 cmd, void *buf_in, u16 in_size,
u8 size)
{
u16 src_idx = vf_id + hinic_glb_pf_vf_offset(hwdev);
int i;
for (i = 0; i < size; i++) {
if (cmd == cmd_handle[i].cmd) {
if (cmd_handle[i].check_cmd)
return cmd_handle[i].check_cmd(hwdev, src_idx,
buf_in, in_size);
else
return true;
}
}
sdk_err(hwdev->dev_hdl, "Unsupported vf cmd %d\n", cmd);
return false;
}
static void recv_func_mbox_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox,
u16 src_func_idx)
{
struct hinic_hwdev *dev = func_to_func->hwdev;
struct mbox_msg_info msg_info = {0};
u16 out_size = MBOX_MAX_BUF_SZ;
void *buf_out = recv_mbox->buf_out;
int err = 0;
if (HINIC_IS_VF(dev)) {
err = recv_vf_mbox_handler(func_to_func, recv_mbox, buf_out,
&out_size);
} else { /* pf/ppf process */
if (IS_PF_OR_PPF_SRC(src_func_idx)) {
if (HINIC_IS_PPF(dev)) {
err = recv_ppf_mbox_handler(func_to_func,
recv_mbox,
(u8)src_func_idx,
buf_out, &out_size);
if (err)
goto out;
} else {
err = recv_pf_from_ppf_handler(func_to_func,
recv_mbox,
buf_out,
&out_size);
if (err)
goto out;
}
/* The source is neither PF nor PPF, so it is from VF */
} else {
err = recv_pf_from_vf_mbox_handler(func_to_func,
recv_mbox,
src_func_idx,
buf_out, &out_size);
}
}
out:
if (recv_mbox->ack_type == MBOX_ACK) {
msg_info.msg_id = recv_mbox->msg_info.msg_id;
if (err == HINIC_DEV_BUSY_ACTIVE_FW ||
err == HINIC_MBOX_PF_BUSY_ACTIVE_FW)
msg_info.status = HINIC_MBOX_PF_BUSY_ACTIVE_FW;
else if (err == HINIC_MBOX_VF_CMD_ERROR)
msg_info.status = HINIC_MBOX_VF_CMD_ERROR;
else if (err)
msg_info.status = HINIC_MBOX_PF_SEND_ERR;
/* if not data need to response, set out_size to 1 */
if (!out_size || err)
out_size = MBOX_MSG_NO_DATA_LEN;
send_mbox_to_func(func_to_func, recv_mbox->mod, recv_mbox->cmd,
buf_out, out_size, src_func_idx,
HINIC_HWIF_RESPONSE, MBOX_ACK,
&msg_info);
}
kfree(recv_mbox->buf_out);
kfree(recv_mbox->mbox);
kfree(recv_mbox);
}
static bool check_mbox_seq_id_and_seg_len(struct hinic_recv_mbox *recv_mbox,
u8 seq_id, u8 seg_len)
{
if (seq_id > SEQ_ID_MAX_VAL || seg_len > MBOX_SEG_LEN)
return false;
else if (seq_id == SEQ_ID_MAX_VAL && seg_len > MBOX_LAST_SEG_MAX_LEN)
return false;
if (seq_id == 0) {
recv_mbox->seq_id = seq_id;
} else {
if (seq_id != recv_mbox->seq_id + 1)
return false;
recv_mbox->seq_id = seq_id;
}
return true;
}
static void resp_mbox_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox)
{
spin_lock(&func_to_func->mbox_lock);
if (recv_mbox->msg_info.msg_id == func_to_func->send_msg_id &&
func_to_func->event_flag == EVENT_START)
complete(&recv_mbox->recv_done);
else
sdk_err(func_to_func->hwdev->dev_hdl,
"Mbox response timeout, current send msg id(0x%x), recv msg id(0x%x), status(0x%x)\n",
func_to_func->send_msg_id, recv_mbox->msg_info.msg_id,
recv_mbox->msg_info.status);
spin_unlock(&func_to_func->mbox_lock);
}
static void recv_func_mbox_work_handler(struct work_struct *work)
{
struct hinic_mbox_work *mbox_work =
container_of(work, struct hinic_mbox_work, work);
recv_func_mbox_handler(mbox_work->func_to_func, mbox_work->recv_mbox,
mbox_work->src_func_idx);
kfree(mbox_work);
}
static void recv_mbox_handler(struct hinic_mbox_func_to_func *func_to_func,
void *header, struct hinic_recv_mbox *recv_mbox)
{
u64 mbox_header = *((u64 *)header);
void *mbox_body = MBOX_BODY_FROM_HDR(header);
struct hinic_recv_mbox *rcv_mbox_temp = NULL;
u16 src_func_idx;
struct hinic_mbox_work *mbox_work;
int pos;
u8 seq_id, seg_len;
seq_id = HINIC_MBOX_HEADER_GET(mbox_header, SEQID);
seg_len = HINIC_MBOX_HEADER_GET(mbox_header, SEG_LEN);
src_func_idx = HINIC_MBOX_HEADER_GET(mbox_header, SRC_GLB_FUNC_IDX);
if (!check_mbox_seq_id_and_seg_len(recv_mbox, seq_id, seg_len)) {
sdk_err(func_to_func->hwdev->dev_hdl,
"Mailbox sequence and segment check fail, src func id: 0x%x, front id: 0x%x, current id: 0x%x, seg len: 0x%x\n",
src_func_idx, recv_mbox->seq_id, seq_id, seg_len);
recv_mbox->seq_id = SEQ_ID_MAX_VAL;
return;
}
pos = seq_id * MBOX_SEG_LEN;
memcpy((u8 *)recv_mbox->mbox + pos, mbox_body,
HINIC_MBOX_HEADER_GET(mbox_header, SEG_LEN));
if (!HINIC_MBOX_HEADER_GET(mbox_header, LAST))
return;
recv_mbox->cmd = HINIC_MBOX_HEADER_GET(mbox_header, CMD);
recv_mbox->mod = HINIC_MBOX_HEADER_GET(mbox_header, MODULE);
recv_mbox->mbox_len = HINIC_MBOX_HEADER_GET(mbox_header, MSG_LEN);
recv_mbox->ack_type = HINIC_MBOX_HEADER_GET(mbox_header, NO_ACK);
recv_mbox->msg_info.msg_id = HINIC_MBOX_HEADER_GET(mbox_header, MSG_ID);
recv_mbox->msg_info.status = HINIC_MBOX_HEADER_GET(mbox_header, STATUS);
recv_mbox->seq_id = SEQ_ID_MAX_VAL;
if (HINIC_MBOX_HEADER_GET(mbox_header, DIRECTION) ==
HINIC_HWIF_RESPONSE) {
resp_mbox_handler(func_to_func, recv_mbox);
return;
}
rcv_mbox_temp = kzalloc(sizeof(*rcv_mbox_temp), GFP_KERNEL);
if (!rcv_mbox_temp)
return;
memcpy(rcv_mbox_temp, recv_mbox, sizeof(*rcv_mbox_temp));
rcv_mbox_temp->mbox = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL);
if (!rcv_mbox_temp->mbox)
goto rcv_mbox_msg_err;
memcpy(rcv_mbox_temp->mbox, recv_mbox->mbox, MBOX_MAX_BUF_SZ);
rcv_mbox_temp->buf_out = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL);
if (!rcv_mbox_temp->buf_out) {
sdk_err(func_to_func->hwdev->dev_hdl, "Allocate receive mbox out buffer memory failed.\n");
goto rcv_mbox_buf_err;
}
mbox_work = kzalloc(sizeof(*mbox_work), GFP_KERNEL);
if (!mbox_work) {
sdk_err(func_to_func->hwdev->dev_hdl, "Allocate mbox work memory failed.\n");
goto mbox_work_err;
}
mbox_work->func_to_func = func_to_func;
mbox_work->recv_mbox = rcv_mbox_temp;
mbox_work->src_func_idx = src_func_idx;
INIT_WORK(&mbox_work->work, recv_func_mbox_work_handler);
queue_work(func_to_func->workq, &mbox_work->work);
return;
mbox_work_err:
kfree(rcv_mbox_temp->buf_out);
rcv_mbox_buf_err:
kfree(rcv_mbox_temp->mbox);
rcv_mbox_msg_err:
kfree(rcv_mbox_temp);
}
int set_vf_mbox_random_id(struct hinic_hwdev *hwdev, u16 func_id)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
struct hinic_set_random_id rand_info = {0};
u16 out_size = sizeof(rand_info);
int ret;
rand_info.version = HINIC_CMD_VER_FUNC_ID;
rand_info.func_idx = func_id;
rand_info.vf_in_pf = (u8)(func_id - hinic_glb_pf_vf_offset(hwdev));
get_random_bytes(&rand_info.random_id, sizeof(u32));
func_to_func->vf_mbx_rand_id[func_id] = rand_info.random_id;
ret = hinic_msg_to_mgmt_sync(hwdev, HINIC_MOD_COMM,
HINIC_MGMT_CMD_SET_VF_RANDOM_ID,
&rand_info, sizeof(rand_info),
&rand_info, &out_size, 0);
if ((rand_info.status != HINIC_MGMT_CMD_UNSUPPORTED &&
rand_info.status) || !out_size || ret) {
sdk_err(hwdev->dev_hdl, "Failed to set vf random id, err: %d, status: 0x%x, out size: 0x%x\n",
ret, rand_info.status, out_size);
return -EINVAL;
}
if (rand_info.status == HINIC_MGMT_CMD_UNSUPPORTED)
return rand_info.status;
func_to_func->vf_mbx_old_rand_id[func_id] =
func_to_func->vf_mbx_rand_id[func_id];
return 0;
}
static void update_random_id_work_handler(struct work_struct *work)
{
struct hinic_mbox_work *mbox_work =
container_of(work, struct hinic_mbox_work, work);
struct hinic_mbox_func_to_func *func_to_func = mbox_work->func_to_func;
u16 src = mbox_work->src_func_idx;
int err;
err = set_vf_mbox_random_id(func_to_func->hwdev, src);
if (err)
sdk_warn(func_to_func->hwdev->dev_hdl, "Update vf id(0x%x) random id fail\n",
mbox_work->src_func_idx);
kfree(mbox_work);
}
bool check_vf_mbox_random_id(struct hinic_mbox_func_to_func *func_to_func,
u8 *header)
{
struct hinic_hwdev *hwdev = func_to_func->hwdev;
u64 mbox_header = *((u64 *)header);
struct hinic_mbox_work *mbox_work;
u32 random_id;
u16 offset, src = HINIC_MBOX_HEADER_GET(mbox_header, SRC_GLB_FUNC_IDX);
int vf_in_pf;
if (IS_PF_OR_PPF_SRC(src) || !func_to_func->support_vf_random)
return true;
if (!HINIC_IS_PPF(hwdev)) {
offset = hinic_glb_pf_vf_offset(hwdev);
vf_in_pf = src - offset;
if (vf_in_pf < 1 || vf_in_pf > hinic_func_max_vf(hwdev)) {
sdk_warn(hwdev->dev_hdl,
"Receive vf id(0x%x) is invalid, vf id should be from 0x%x to 0x%x\n",
src, (offset + 1),
(hinic_func_max_vf(hwdev) + offset));
return false;
}
}
random_id = be32_to_cpu(*(u32 *)(header + MBOX_SEG_LEN +
MBOX_HEADER_SZ));
if (random_id == func_to_func->vf_mbx_rand_id[src] ||
random_id == func_to_func->vf_mbx_old_rand_id[src])
return true;
sdk_warn(hwdev->dev_hdl,
"Receive func_id(0x%x) mailbox random id(0x%x) mismatch with pf reserve(0x%x)\n",
src, random_id, func_to_func->vf_mbx_rand_id[src]);
mbox_work = kzalloc(sizeof(*mbox_work), GFP_KERNEL);
if (!mbox_work)
return false;
mbox_work->func_to_func = func_to_func;
mbox_work->src_func_idx = src;
INIT_WORK(&mbox_work->work, update_random_id_work_handler);
queue_work(func_to_func->workq, &mbox_work->work);
return false;
}
void hinic_mbox_func_aeqe_handler(void *handle, u8 *header, u8 size)
{
struct hinic_mbox_func_to_func *func_to_func;
struct hinic_recv_mbox *recv_mbox;
u64 mbox_header = *((u64 *)header);
u64 src, dir;
func_to_func = ((struct hinic_hwdev *)handle)->func_to_func;
dir = HINIC_MBOX_HEADER_GET(mbox_header, DIRECTION);
src = HINIC_MBOX_HEADER_GET(mbox_header, SRC_GLB_FUNC_IDX);
if (src >= HINIC_MAX_FUNCTIONS) {
sdk_err(func_to_func->hwdev->dev_hdl,
"Mailbox source function id: %u is invalid\n",
(u32)src);
return;
}
if (!check_vf_mbox_random_id(func_to_func, header))
return;
recv_mbox = (dir == HINIC_HWIF_DIRECT_SEND) ?
&func_to_func->mbox_send[src] :
&func_to_func->mbox_resp[src];
recv_mbox_handler(func_to_func, (u64 *)header, recv_mbox);
}
void hinic_mbox_self_aeqe_handler(void *handle, u8 *header, u8 size)
{
struct hinic_mbox_func_to_func *func_to_func;
struct hinic_send_mbox *send_mbox;
func_to_func = ((struct hinic_hwdev *)handle)->func_to_func;
send_mbox = &func_to_func->send_mbox;
complete(&send_mbox->send_done);
}
static void clear_mbox_status(struct hinic_send_mbox *mbox)
{
*mbox->wb_status = 0;
/* clear mailbox write back status */
wmb();
}
static void mbox_copy_header(struct hinic_hwdev *hwdev,
struct hinic_send_mbox *mbox, u64 *header)
{
u32 *data = (u32 *)header;
u32 i, idx_max = MBOX_HEADER_SZ / sizeof(u32);
for (i = 0; i < idx_max; i++)
__raw_writel(*(data + i), mbox->data + i * sizeof(u32));
}
static void mbox_copy_send_data(struct hinic_hwdev *hwdev,
struct hinic_send_mbox *mbox, void *seg,
u16 seg_len)
{
u32 *data = seg;
u32 data_len, chk_sz = sizeof(u32);
u32 i, idx_max;
u8 mbox_max_buf[MBOX_SEG_LEN] = {0};
/* The mbox message should be aligned in 4 bytes. */
if (seg_len % chk_sz) {
memcpy(mbox_max_buf, seg, seg_len);
data = (u32 *)mbox_max_buf;
}
data_len = seg_len;
idx_max = ALIGN(data_len, chk_sz) / chk_sz;
for (i = 0; i < idx_max; i++) {
__raw_writel(*(data + i),
mbox->data + MBOX_HEADER_SZ + i * sizeof(u32));
}
}
static void write_mbox_msg_attr(struct hinic_mbox_func_to_func *func_to_func,
u16 dst_func, u16 dst_aeqn, u16 rsp_aeq,
u16 seg_len, int poll)
{
u32 mbox_int, mbox_ctrl;
mbox_int = HINIC_MBOX_INT_SET(dst_func, DST_FUNC) |
HINIC_MBOX_INT_SET(dst_aeqn, DST_AEQN) |
HINIC_MBOX_INT_SET(rsp_aeq, SRC_RESP_AEQN) |
HINIC_MBOX_INT_SET(NO_DMA_ATTRIBUTE_VAL, STAT_DMA) |
HINIC_MBOX_INT_SET(ALIGN(MBOX_SEG_LEN + MBOX_HEADER_SZ +
MBOX_INFO_SZ, MBOX_SEG_LEN_ALIGN) >> 2,
TX_SIZE) |
HINIC_MBOX_INT_SET(STRONG_ORDER, STAT_DMA_SO_RO) |
HINIC_MBOX_INT_SET(WRITE_BACK, WB_EN);
hinic_hwif_write_reg(func_to_func->hwdev->hwif,
HINIC_FUNC_CSR_MAILBOX_INT_OFFSET_OFF, mbox_int);
wmb(); /* writing the mbox int attributes */
mbox_ctrl = HINIC_MBOX_CTRL_SET(TX_NOT_DONE, TX_STATUS);
if (poll)
mbox_ctrl |= HINIC_MBOX_CTRL_SET(NOT_TRIGGER, TRIGGER_AEQE);
else
mbox_ctrl |= HINIC_MBOX_CTRL_SET(TRIGGER, TRIGGER_AEQE);
hinic_hwif_write_reg(func_to_func->hwdev->hwif,
HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF, mbox_ctrl);
}
void dump_mox_reg(struct hinic_hwdev *hwdev)
{
u32 val;
val = hinic_hwif_read_reg(hwdev->hwif,
HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF);
sdk_err(hwdev->dev_hdl, "Mailbox control reg: 0x%x\n", val);
val = hinic_hwif_read_reg(hwdev->hwif,
HINIC_FUNC_CSR_MAILBOX_INT_OFFSET_OFF);
sdk_err(hwdev->dev_hdl, "Mailbox interrupt offset: 0x%x\n", val);
}
static u16 get_mbox_status(struct hinic_send_mbox *mbox)
{
/* write back is 16B, but only use first 4B */
u64 wb_val = be64_to_cpu(*mbox->wb_status);
rmb(); /* verify reading before check */
return (u16)(wb_val & MBOX_WB_STATUS_ERRCODE_MASK);
}
static u16 mbox_msg_ack_aeqn(struct hinic_hwdev *hwdev,
enum hinic_hwif_direction_type seq_dir)
{
u8 num_aeqs = hwdev->hwif->attr.num_aeqs;
u16 dst_aeqn;
if (num_aeqs >= HINIC_HW_MAX_AEQS)
dst_aeqn = HINIC_MBOX_RSP_AEQN;
else
dst_aeqn = 0;
return dst_aeqn;
}
static int mbox_retry_get_ack(struct hinic_mbox_func_to_func *func_to_func,
struct completion *done, u16 aeq_id)
{
ulong timeo = msecs_to_jiffies(MBOX_MSG_RETRY_ACK_TIMEOUT);
int err;
init_completion(done);
err = hinic_reschedule_eq(func_to_func->hwdev, HINIC_AEQ, aeq_id);
if (err)
return err;
if (!wait_for_completion_timeout(done, timeo))
return -ETIMEDOUT;
return 0;
}
static int send_mbox_seg(struct hinic_mbox_func_to_func *func_to_func,
u64 header, u16 dst_func, void *seg, u16 seg_len,
int poll, void *msg_info)
{
struct hinic_send_mbox *send_mbox = &func_to_func->send_mbox;
struct hinic_hwdev *hwdev = func_to_func->hwdev;
u8 num_aeqs = hwdev->hwif->attr.num_aeqs;
u16 dst_aeqn, wb_status = 0, errcode, rsp_aeq;
u16 seq_dir = HINIC_MBOX_HEADER_GET(header, DIRECTION);
struct completion *done = &send_mbox->send_done;
ulong jif;
u32 cnt = 0;
if (num_aeqs >= HINIC_HW_MAX_AEQS)
dst_aeqn = (seq_dir == HINIC_HWIF_DIRECT_SEND) ?
HINIC_MBOX_RECV_AEQN : HINIC_MBOX_RSP_AEQN;
else
dst_aeqn = 0;
rsp_aeq = (dst_aeqn == 0) ? 0 : HINIC_MBOX_RSP_AEQN;
if (!poll)
init_completion(done);
clear_mbox_status(send_mbox);
mbox_copy_header(hwdev, send_mbox, &header);
mbox_copy_send_data(hwdev, send_mbox, seg, seg_len);
write_mbox_msg_attr(func_to_func, dst_func, dst_aeqn, rsp_aeq,
seg_len, poll);
wmb(); /* writing the mbox msg attributes */
if (poll) {
while (cnt < MBOX_MSG_POLLING_TIMEOUT) {
wb_status = get_mbox_status(send_mbox);
if (MBOX_STATUS_FINISHED(wb_status))
break;
usleep_range(900, 1000);
cnt++;
}
if (cnt == MBOX_MSG_POLLING_TIMEOUT) {
sdk_err(hwdev->dev_hdl, "Send mailbox segment timeout, wb status: 0x%x\n",
wb_status);
dump_mox_reg(hwdev);
return -ETIMEDOUT;
}
} else {
jif = msecs_to_jiffies(HINIC_MBOX_COMP_TIME);
if (!wait_for_completion_timeout(done, jif) &&
mbox_retry_get_ack(func_to_func, done, rsp_aeq)) {
sdk_err(hwdev->dev_hdl, "Send mailbox segment timeout\n");
dump_mox_reg(hwdev);
hinic_dump_aeq_info(hwdev);
return -ETIMEDOUT;
}
wb_status = get_mbox_status(send_mbox);
}
if (!MBOX_STATUS_SUCCESS(wb_status)) {
sdk_err(hwdev->dev_hdl, "Send mailbox segment to function %d error, wb status: 0x%x\n",
dst_func, wb_status);
errcode = MBOX_STATUS_ERRCODE(wb_status);
return errcode ? errcode : -EFAULT;
}
return 0;
}
static int send_mbox_to_func(struct hinic_mbox_func_to_func *func_to_func,
enum hinic_mod_type mod, u16 cmd, void *msg,
u16 msg_len, u16 dst_func,
enum hinic_hwif_direction_type direction,
enum hinic_mbox_ack_type ack_type,
struct mbox_msg_info *msg_info)
{
struct hinic_hwdev *hwdev = func_to_func->hwdev;
int err = 0;
u32 seq_id = 0;
u16 seg_len = MBOX_SEG_LEN;
u16 left = msg_len;
u8 *msg_seg = (u8 *)msg;
u64 header = 0;
down(&func_to_func->msg_send_sem);
header = HINIC_MBOX_HEADER_SET(msg_len, MSG_LEN) |
HINIC_MBOX_HEADER_SET(mod, MODULE) |
HINIC_MBOX_HEADER_SET(seg_len, SEG_LEN) |
HINIC_MBOX_HEADER_SET(ack_type, NO_ACK) |
HINIC_MBOX_HEADER_SET(SEQ_ID_START_VAL, SEQID) |
HINIC_MBOX_HEADER_SET(NOT_LAST_SEG, LAST) |
HINIC_MBOX_HEADER_SET(direction, DIRECTION) |
HINIC_MBOX_HEADER_SET(cmd, CMD) |
/* The vf's offset to it's associated pf */
HINIC_MBOX_HEADER_SET(msg_info->msg_id, MSG_ID) |
HINIC_MBOX_HEADER_SET(msg_info->status, STATUS) |
HINIC_MBOX_HEADER_SET(hinic_global_func_id_hw(hwdev),
SRC_GLB_FUNC_IDX);
while (!(HINIC_MBOX_HEADER_GET(header, LAST))) {
if (left <= HINIC_MBOX_SEG_LEN) {
header &= ~MBOX_SEGLEN_MASK;
header |= HINIC_MBOX_HEADER_SET(left, SEG_LEN);
header |= HINIC_MBOX_HEADER_SET(LAST_SEG, LAST);
seg_len = left;
}
err = send_mbox_seg(func_to_func, header, dst_func, msg_seg,
seg_len, func_to_func->send_ack_mod,
msg_info);
if (err) {
sdk_err(hwdev->dev_hdl, "Failed to send mbox seg, seq_id=0x%llx\n",
HINIC_MBOX_HEADER_GET(header, SEQID));
goto send_err;
}
left -= HINIC_MBOX_SEG_LEN;
msg_seg += HINIC_MBOX_SEG_LEN;
seq_id++;
header &= ~(HINIC_MBOX_HEADER_SET(HINIC_MBOX_HEADER_SEQID_MASK,
SEQID));
header |= HINIC_MBOX_HEADER_SET(seq_id, SEQID);
}
send_err:
up(&func_to_func->msg_send_sem);
return err;
}
static void set_mbox_to_func_event(struct hinic_mbox_func_to_func *func_to_func,
enum mbox_event_state event_flag)
{
spin_lock(&func_to_func->mbox_lock);
func_to_func->event_flag = event_flag;
spin_unlock(&func_to_func->mbox_lock);
}
int hinic_mbox_to_func(struct hinic_mbox_func_to_func *func_to_func,
enum hinic_mod_type mod, u16 cmd, u16 dst_func,
void *buf_in, u16 in_size, void *buf_out,
u16 *out_size, u32 timeout)
{
/* use mbox_resp to hole data which responsed from other function */
struct hinic_recv_mbox *mbox_for_resp;
struct mbox_msg_info msg_info = {0};
ulong timeo;
int err;
if (!func_to_func->hwdev->chip_present_flag)
return -EPERM;
mbox_for_resp = &func_to_func->mbox_resp[dst_func];
down(&func_to_func->mbox_send_sem);
init_completion(&mbox_for_resp->recv_done);
msg_info.msg_id = MBOX_MSG_ID_INC(func_to_func);
set_mbox_to_func_event(func_to_func, EVENT_START);
err = send_mbox_to_func(func_to_func, mod, cmd, buf_in, in_size,
dst_func, HINIC_HWIF_DIRECT_SEND, MBOX_ACK,
&msg_info);
if (err) {
sdk_err(func_to_func->hwdev->dev_hdl, "Send mailbox mod %d cmd 0x%x failed, msg_id: %d\n",
mod, cmd, msg_info.msg_id);
set_mbox_to_func_event(func_to_func, EVENT_FAIL);
goto send_err;
}
timeo = msecs_to_jiffies(timeout ? timeout : HINIC_MBOX_COMP_TIME);
if (!wait_for_completion_timeout(&mbox_for_resp->recv_done, timeo) &&
mbox_retry_get_ack(func_to_func, &mbox_for_resp->recv_done,
mbox_msg_ack_aeqn(func_to_func->hwdev,
HINIC_HWIF_DIRECT_SEND))) {
set_mbox_to_func_event(func_to_func, EVENT_TIMEOUT);
sdk_err(func_to_func->hwdev->dev_hdl,
"Send mbox msg mod %d cmd 0x%x timeout, msg_id: %d\n",
mod, cmd, msg_info.msg_id);
hinic_dump_aeq_info(func_to_func->hwdev);
err = -ETIMEDOUT;
goto send_err;
}
set_mbox_to_func_event(func_to_func, EVENT_END);
if (mbox_for_resp->msg_info.status) {
err = mbox_for_resp->msg_info.status;
if (err != HINIC_MBOX_PF_BUSY_ACTIVE_FW)
sdk_err(func_to_func->hwdev->dev_hdl, "Mbox response error(0x%x)\n",
mbox_for_resp->msg_info.status);
goto send_err;
}
if (buf_out && out_size) {
if (*out_size < mbox_for_resp->mbox_len) {
sdk_err(func_to_func->hwdev->dev_hdl,
"Invalid response mbox message length: %d for mod %d cmd 0x%x, should less than: %d\n",
mbox_for_resp->mbox_len, mod, cmd, *out_size);
err = -EFAULT;
goto send_err;
}
if (mbox_for_resp->mbox_len)
memcpy(buf_out, mbox_for_resp->mbox,
mbox_for_resp->mbox_len);
*out_size = mbox_for_resp->mbox_len;
}
send_err:
up(&func_to_func->mbox_send_sem);
return err;
}
static int mbox_func_params_valid(struct hinic_mbox_func_to_func *func_to_func,
void *buf_in, u16 in_size)
{
if (!buf_in || !in_size)
return -EINVAL;
if (in_size > HINIC_MBOX_DATA_SIZE) {
sdk_err(func_to_func->hwdev->dev_hdl,
"Mbox msg len(%d) exceed limit(%d)\n",
in_size, HINIC_MBOX_DATA_SIZE);
return -EINVAL;
}
return 0;
}
int hinic_mbox_to_host(struct hinic_hwdev *hwdev, u16 dest_host_ppf_id,
enum hinic_mod_type mod, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size, u32 timeout)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
int err;
err = mbox_func_params_valid(func_to_func, buf_in, in_size);
if (err)
return err;
if (!HINIC_IS_PPF(hwdev)) {
sdk_err(hwdev->dev_hdl, "Params error, only ppf can send message to other host, func_type: %d\n",
hinic_func_type(hwdev));
return -EINVAL;
}
return hinic_mbox_to_func(func_to_func, mod, cmd, dest_host_ppf_id,
buf_in, in_size, buf_out, out_size, timeout);
}
int hinic_mbox_to_ppf(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size, u32 timeout)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
int err = mbox_func_params_valid(func_to_func, buf_in, in_size);
if (err)
return err;
if (HINIC_IS_VF(hwdev) || HINIC_IS_PPF(hwdev)) {
sdk_err(hwdev->dev_hdl, "Params error, func_type: %d\n",
hinic_func_type(hwdev));
return -EINVAL;
}
return hinic_mbox_to_func(func_to_func, mod, cmd, hinic_ppf_idx(hwdev),
buf_in, in_size, buf_out, out_size, timeout);
}
int hinic_mbox_to_pf(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size, u32 timeout)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
int err = mbox_func_params_valid(func_to_func, buf_in, in_size);
if (err)
return err;
if (!HINIC_IS_VF(hwdev)) {
sdk_err(hwdev->dev_hdl, "Params error, func_type: %d\n",
hinic_func_type(hwdev));
return -EINVAL;
}
err = hinic_func_own_get(hwdev);
if (err)
return err;
/* port_to_port_idx - imply which PCIE interface PF is connected */
err = hinic_mbox_to_func(func_to_func, mod, cmd,
hinic_pf_id_of_vf_hw(hwdev), buf_in, in_size,
buf_out, out_size, timeout);
hinic_func_own_free(hwdev);
return err;
}
int hinic_mbox_to_func_no_ack(struct hinic_hwdev *hwdev, u16 func_idx,
enum hinic_mod_type mod, u8 cmd, void *buf_in,
u16 in_size)
{
struct mbox_msg_info msg_info = {0};
int err = mbox_func_params_valid(hwdev->func_to_func, buf_in, in_size);
if (err)
return err;
down(&hwdev->func_to_func->mbox_send_sem);
err = send_mbox_to_func(hwdev->func_to_func, mod, cmd, buf_in, in_size,
func_idx, HINIC_HWIF_DIRECT_SEND, MBOX_NO_ACK,
&msg_info);
if (err)
sdk_err(hwdev->dev_hdl, "Send mailbox no ack failed\n");
up(&hwdev->func_to_func->mbox_send_sem);
return err;
}
int hinic_mbox_to_pf_no_ack(struct hinic_hwdev *hwdev, enum hinic_mod_type mod,
u8 cmd, void *buf_in, u16 in_size)
{
int err;
err = hinic_func_own_get(hwdev);
if (err)
return err;
err = hinic_mbox_to_func_no_ack(hwdev, hinic_pf_id_of_vf_hw(hwdev),
mod, cmd, buf_in, in_size);
hinic_func_own_free(hwdev);
return err;
}
int __hinic_mbox_to_vf(void *hwdev,
enum hinic_mod_type mod, u16 vf_id, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size, u32 timeout)
{
struct hinic_mbox_func_to_func *func_to_func;
int err;
u16 dst_func_idx;
if (!hwdev)
return -EINVAL;
func_to_func = ((struct hinic_hwdev *)hwdev)->func_to_func;
err = mbox_func_params_valid(func_to_func, buf_in, in_size);
if (err)
return err;
if (HINIC_IS_VF((struct hinic_hwdev *)hwdev)) {
sdk_err(((struct hinic_hwdev *)hwdev)->dev_hdl, "Params error, func_type: %d\n",
hinic_func_type(hwdev));
return -EINVAL;
}
if (!vf_id) {
sdk_err(((struct hinic_hwdev *)hwdev)->dev_hdl,
"VF id(%d) error!\n", vf_id);
return -EINVAL;
}
/* vf_offset_to_pf + vf_id is the vf's global function id of vf in
* this pf
*/
dst_func_idx = hinic_glb_pf_vf_offset(hwdev) + vf_id;
return hinic_mbox_to_func(func_to_func, mod, cmd, dst_func_idx, buf_in,
in_size, buf_out, out_size, timeout);
}
int hinic_mbox_ppf_to_vf(void *hwdev, enum hinic_mod_type mod, u16 func_id,
u8 cmd, void *buf_in, u16 in_size, void *buf_out,
u16 *out_size, u32 timeout)
{
struct hinic_mbox_func_to_func *func_to_func;
int err;
if (!hwdev)
return -EINVAL;
func_to_func = ((struct hinic_hwdev *)hwdev)->func_to_func;
err = mbox_func_params_valid(func_to_func, buf_in, in_size);
if (err)
return err;
if (HINIC_IS_VF((struct hinic_hwdev *)hwdev)) {
sdk_err(((struct hinic_hwdev *)hwdev)->dev_hdl, "Params error, func_type: %d\n",
hinic_func_type(hwdev));
return -EINVAL;
}
return hinic_mbox_to_func(func_to_func, mod, cmd, func_id, buf_in,
in_size, buf_out, out_size, timeout);
}
EXPORT_SYMBOL(hinic_mbox_ppf_to_vf);
int hinic_mbox_ppf_to_pf(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod, u16 dst_pf_id, u8 cmd,
void *buf_in, u16 in_size, void *buf_out,
u16 *out_size, u32 timeout)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
int err;
err = mbox_func_params_valid(func_to_func, buf_in, in_size);
if (err)
return err;
if (!HINIC_IS_PPF(hwdev)) {
sdk_err(hwdev->dev_hdl, "Params error, func_type: %d\n",
hinic_func_type(hwdev));
return -EINVAL;
}
if (hinic_ppf_idx(hwdev) == dst_pf_id) {
sdk_err(hwdev->dev_hdl,
"Params error, dst_pf_id(0x%x) is ppf\n", dst_pf_id);
return -EINVAL;
}
return hinic_mbox_to_func(func_to_func, mod, cmd, dst_pf_id, buf_in,
in_size, buf_out, out_size, timeout);
}
static int init_mbox_info(struct hinic_recv_mbox *mbox_info)
{
int err;
mbox_info->seq_id = SEQ_ID_MAX_VAL;
mbox_info->mbox = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL);
if (!mbox_info->mbox)
return -ENOMEM;
mbox_info->buf_out = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL);
if (!mbox_info->buf_out) {
err = -ENOMEM;
goto alloc_buf_out_err;
}
return 0;
alloc_buf_out_err:
kfree(mbox_info->mbox);
return err;
}
static void clean_mbox_info(struct hinic_recv_mbox *mbox_info)
{
kfree(mbox_info->buf_out);
kfree(mbox_info->mbox);
}
static int alloc_mbox_info(struct hinic_recv_mbox *mbox_info)
{
u16 func_idx, i;
int err;
for (func_idx = 0; func_idx < HINIC_MAX_FUNCTIONS; func_idx++) {
err = init_mbox_info(&mbox_info[func_idx]);
if (err) {
pr_err("Failed to init mbox info\n");
goto init_mbox_info_err;
}
}
return 0;
init_mbox_info_err:
for (i = 0; i < func_idx; i++)
clean_mbox_info(&mbox_info[i]);
return err;
}
static void free_mbox_info(struct hinic_recv_mbox *mbox_info)
{
u16 func_idx;
for (func_idx = 0; func_idx < HINIC_MAX_FUNCTIONS; func_idx++)
clean_mbox_info(&mbox_info[func_idx]);
}
static void prepare_send_mbox(struct hinic_mbox_func_to_func *func_to_func)
{
struct hinic_send_mbox *send_mbox = &func_to_func->send_mbox;
send_mbox->data = MBOX_AREA(func_to_func->hwdev->hwif);
}
static int alloc_mbox_wb_status(struct hinic_mbox_func_to_func *func_to_func)
{
struct hinic_send_mbox *send_mbox = &func_to_func->send_mbox;
struct hinic_hwdev *hwdev = func_to_func->hwdev;
u32 addr_h, addr_l;
send_mbox->wb_vaddr = dma_alloc_coherent(hwdev->dev_hdl,
MBOX_WB_STATUS_LEN,
&send_mbox->wb_paddr,
GFP_KERNEL);
if (!send_mbox->wb_vaddr)
return -ENOMEM;
send_mbox->wb_status = send_mbox->wb_vaddr;
addr_h = upper_32_bits(send_mbox->wb_paddr);
addr_l = lower_32_bits(send_mbox->wb_paddr);
hinic_hwif_write_reg(hwdev->hwif, HINIC_FUNC_CSR_MAILBOX_RESULT_H_OFF,
addr_h);
hinic_hwif_write_reg(hwdev->hwif, HINIC_FUNC_CSR_MAILBOX_RESULT_L_OFF,
addr_l);
return 0;
}
static void free_mbox_wb_status(struct hinic_mbox_func_to_func *func_to_func)
{
struct hinic_send_mbox *send_mbox = &func_to_func->send_mbox;
struct hinic_hwdev *hwdev = func_to_func->hwdev;
hinic_hwif_write_reg(hwdev->hwif, HINIC_FUNC_CSR_MAILBOX_RESULT_H_OFF,
0);
hinic_hwif_write_reg(hwdev->hwif, HINIC_FUNC_CSR_MAILBOX_RESULT_L_OFF,
0);
dma_free_coherent(hwdev->dev_hdl, MBOX_WB_STATUS_LEN,
send_mbox->wb_vaddr,
send_mbox->wb_paddr);
}
int hinic_vf_mbox_random_id_init(struct hinic_hwdev *hwdev)
{
u8 vf_in_pf;
int err = 0;
if (hinic_func_type(hwdev) == TYPE_VF)
return 0;
for (vf_in_pf = 1; vf_in_pf <= hinic_func_max_vf(hwdev); vf_in_pf++) {
err = set_vf_mbox_random_id(hwdev,
hinic_glb_pf_vf_offset(hwdev) +
vf_in_pf);
if (err)
break;
}
if (err == HINIC_MGMT_CMD_UNSUPPORTED) {
hwdev->func_to_func->support_vf_random = false;
err = 0;
sdk_warn(hwdev->dev_hdl, "Mgmt unsupport set vf random id\n");
} else if (!err) {
hwdev->func_to_func->support_vf_random = true;
sdk_info(hwdev->dev_hdl, "PF Set vf random id success\n");
}
return err;
}
void hinic_set_mbox_seg_ack_mod(struct hinic_hwdev *hwdev,
enum hinic_mbox_send_mod mod)
{
if (!hwdev || !hwdev->func_to_func)
return;
hwdev->func_to_func->send_ack_mod = mod;
}
int hinic_func_to_func_init(struct hinic_hwdev *hwdev)
{
struct hinic_mbox_func_to_func *func_to_func;
struct card_node *chip_node;
int err;
func_to_func = kzalloc(sizeof(*func_to_func), GFP_KERNEL);
if (!func_to_func)
return -ENOMEM;
hwdev->func_to_func = func_to_func;
func_to_func->hwdev = hwdev;
chip_node = hwdev->chip_node;
func_to_func->vf_mbx_rand_id = chip_node->vf_mbx_rand_id;
func_to_func->vf_mbx_old_rand_id = chip_node->vf_mbx_old_rand_id;
sema_init(&func_to_func->mbox_send_sem, 1);
sema_init(&func_to_func->msg_send_sem, 1);
spin_lock_init(&func_to_func->mbox_lock);
func_to_func->workq = create_singlethread_workqueue(HINIC_MBOX_WQ_NAME);
if (!func_to_func->workq) {
sdk_err(hwdev->dev_hdl, "Failed to initialize MBOX workqueue\n");
err = -ENOMEM;
goto create_mbox_workq_err;
}
err = alloc_mbox_info(func_to_func->mbox_send);
if (err) {
sdk_err(hwdev->dev_hdl, "Alloc mem for mbox_active fail\n");
goto alloc_mbox_for_send_err;
}
err = alloc_mbox_info(func_to_func->mbox_resp);
if (err) {
sdk_err(hwdev->dev_hdl, "Alloc mem for mbox_passive fail\n");
goto alloc_mbox_for_resp_err;
}
err = alloc_mbox_wb_status(func_to_func);
if (err) {
sdk_err(hwdev->dev_hdl, "Failed to alloc mbox write back status\n");
goto alloc_wb_status_err;
}
prepare_send_mbox(func_to_func);
func_to_func->send_ack_mod = HINIC_MBOX_SEND_MSG_POLL;
return 0;
alloc_wb_status_err:
free_mbox_info(func_to_func->mbox_resp);
alloc_mbox_for_resp_err:
free_mbox_info(func_to_func->mbox_send);
alloc_mbox_for_send_err:
destroy_workqueue(func_to_func->workq);
create_mbox_workq_err:
kfree(func_to_func);
return err;
}
void hinic_func_to_func_free(struct hinic_hwdev *hwdev)
{
struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
/* destroy workqueue before free related mbox resources in case of
* illegal resource access
*/
destroy_workqueue(func_to_func->workq);
free_mbox_wb_status(func_to_func);
free_mbox_info(func_to_func->mbox_resp);
free_mbox_info(func_to_func->mbox_send);
kfree(func_to_func);
}
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