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linux-zen-server/drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c

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// SPDX-License-Identifier: GPL-2.0-only
/* Huawei HiNIC PCI Express Linux driver
* Copyright(c) 2017 Huawei Technologies Co., Ltd
*/
#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 "hinic_hw_if.h"
#include "hinic_hw_mgmt.h"
#include "hinic_hw_csr.h"
#include "hinic_hw_dev.h"
#include "hinic_hw_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 sended (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 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_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 NO_DMA_ATTRIBUTE_VAL 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_bar + HINIC_FUNC_CSR_MAILBOX_DATA_OFF)
#define IS_PF_OR_PPF_SRC(src_func_idx) ((src_func_idx) < HINIC_MAX_PF_FUNCS)
#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) (MBOX_MSG_ID(func_to_func_mbox) = \
(MBOX_MSG_ID(func_to_func_mbox) + 1) & MBOX_MSG_ID_MASK)
#define FUNC_ID_OFF_SET_8B 8
/* max message counter wait to process for one function */
#define HINIC_MAX_MSG_CNT_TO_PROCESS 10
#define HINIC_QUEUE_MIN_DEPTH 6
#define HINIC_QUEUE_MAX_DEPTH 12
#define HINIC_MAX_RX_BUFFER_SIZE 15
enum hinic_hwif_direction_type {
HINIC_HWIF_DIRECT_SEND = 0,
HINIC_HWIF_RESPONSE = 1,
};
enum mbox_send_mod {
MBOX_SEND_MSG_INT,
};
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,
};
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)) {
dev_warn(&hwdev->hwif->pdev->dev,
"Receive mailbox msg len: %d less than %d Bytes is invalid\n",
in_size, offset);
return false;
}
func_idx = *((u16 *)((u8 *)buf_in + offset));
if (src_func_idx != func_idx) {
dev_warn(&hwdev->hwif->pdev->dev,
"Receive 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);
}
/**
* 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_unregister_pf_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;
}
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 = 0;
if (recv_mbox->mod >= HINIC_MOD_MAX) {
dev_err(&func_to_func->hwif->pdev->dev, "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])) {
cb(func_to_func->hwdev, recv_mbox->cmd, recv_mbox->mbox,
recv_mbox->mbox_len, buf_out, out_size);
} else {
dev_err(&func_to_func->hwif->pdev->dev, "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_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) {
dev_err(&func_to_func->hwif->pdev->dev, "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->hwif);
ret = cb(func_to_func->hwdev, vf_id, recv_mbox->cmd,
recv_mbox->mbox, recv_mbox->mbox_len,
buf_out, out_size);
} else {
dev_err(&func_to_func->hwif->pdev->dev, "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;
}
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;
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
dev_err(&func_to_func->hwif->pdev->dev,
"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_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox,
u16 src_func_idx);
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);
struct hinic_recv_mbox *recv_mbox;
recv_func_mbox_handler(mbox_work->func_to_func, mbox_work->recv_mbox,
mbox_work->src_func_idx);
recv_mbox =
&mbox_work->func_to_func->mbox_send[mbox_work->src_func_idx];
atomic_dec(&recv_mbox->msg_cnt);
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)
{
void *mbox_body = MBOX_BODY_FROM_HDR(header);
struct hinic_recv_mbox *rcv_mbox_temp = NULL;
u64 mbox_header = *((u64 *)header);
struct hinic_mbox_work *mbox_work;
u8 seq_id, seg_len;
u16 src_func_idx;
int pos;
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)) {
dev_err(&func_to_func->hwif->pdev->dev,
"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;
}
if (atomic_read(&recv_mbox->msg_cnt) > HINIC_MAX_MSG_CNT_TO_PROCESS) {
dev_warn(&func_to_func->hwif->pdev->dev,
"This function(%u) have %d message wait to process,can't add to work queue\n",
src_func_idx, atomic_read(&recv_mbox->msg_cnt));
return;
}
rcv_mbox_temp = kmemdup(recv_mbox, sizeof(*rcv_mbox_temp), GFP_KERNEL);
if (!rcv_mbox_temp)
return;
rcv_mbox_temp->mbox = kmemdup(recv_mbox->mbox, MBOX_MAX_BUF_SZ,
GFP_KERNEL);
if (!rcv_mbox_temp->mbox)
goto err_alloc_rcv_mbox_msg;
rcv_mbox_temp->buf_out = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL);
if (!rcv_mbox_temp->buf_out)
goto err_alloc_rcv_mbox_buf;
mbox_work = kzalloc(sizeof(*mbox_work), GFP_KERNEL);
if (!mbox_work)
goto err_alloc_mbox_work;
mbox_work->func_to_func = func_to_func;
mbox_work->recv_mbox = rcv_mbox_temp;
mbox_work->src_func_idx = src_func_idx;
atomic_inc(&recv_mbox->msg_cnt);
INIT_WORK(&mbox_work->work, recv_func_mbox_work_handler);
queue_work(func_to_func->workq, &mbox_work->work);
return;
err_alloc_mbox_work:
kfree(rcv_mbox_temp->buf_out);
err_alloc_rcv_mbox_buf:
kfree(rcv_mbox_temp->mbox);
err_alloc_rcv_mbox_msg:
kfree(rcv_mbox_temp);
}
static 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);
struct hinic_pfhwdev *pfhwdev;
int ret;
pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
rand_info.version = HINIC_CMD_VER_FUNC_ID;
rand_info.func_idx = func_id;
rand_info.vf_in_pf = func_id - hinic_glb_pf_vf_offset(hwdev->hwif);
rand_info.random_id = get_random_u32();
func_to_func->vf_mbx_rand_id[func_id] = rand_info.random_id;
ret = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
HINIC_MGMT_CMD_SET_VF_RANDOM_ID,
&rand_info, sizeof(rand_info),
&rand_info, &out_size, HINIC_MGMT_MSG_SYNC);
if ((rand_info.status != HINIC_MGMT_CMD_UNSUPPORTED &&
rand_info.status) || !out_size || ret) {
dev_err(&hwdev->hwif->pdev->dev, "Set VF random id failed, err: %d, status: 0x%x, out size: 0x%x\n",
ret, rand_info.status, out_size);
return -EIO;
}
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;
u16 src = mbox_work->src_func_idx;
func_to_func = mbox_work->func_to_func;
if (set_vf_mbox_random_id(func_to_func->hwdev, src))
dev_warn(&func_to_func->hwdev->hwif->pdev->dev, "Update VF id: 0x%x random id failed\n",
mbox_work->src_func_idx);
kfree(mbox_work);
}
static 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;
struct hinic_mbox_work *mbox_work = NULL;
u64 mbox_header = *((u64 *)header);
u16 offset, src;
u32 random_id;
int vf_in_pf;
src = HINIC_MBOX_HEADER_GET(mbox_header, SRC_GLB_FUNC_IDX);
if (IS_PF_OR_PPF_SRC(src) || !func_to_func->support_vf_random)
return true;
if (!HINIC_IS_PPF(hwdev->hwif)) {
offset = hinic_glb_pf_vf_offset(hwdev->hwif);
vf_in_pf = src - offset;
if (vf_in_pf < 1 || vf_in_pf > hwdev->nic_cap.max_vf) {
dev_warn(&hwdev->hwif->pdev->dev,
"Receive vf id(0x%x) is invalid, vf id should be from 0x%x to 0x%x\n",
src, offset + 1,
hwdev->nic_cap.max_vf + 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;
dev_warn(&hwdev->hwif->pdev->dev,
"The mailbox random id(0x%x) of func_id(0x%x) doesn't match with pf reservation(0x%x)\n",
random_id, src, 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;
}
static void hinic_mbox_func_aeqe_handler(void *handle, void *header, u8 size)
{
struct hinic_mbox_func_to_func *func_to_func;
u64 mbox_header = *((u64 *)header);
struct hinic_recv_mbox *recv_mbox;
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) {
dev_err(&func_to_func->hwif->pdev->dev,
"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);
}
static void hinic_mbox_self_aeqe_handler(void *handle, void *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 i, idx_max = MBOX_HEADER_SZ / sizeof(u32);
u32 *data = (u32 *)header;
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)
{
u8 mbox_max_buf[MBOX_SEG_LEN] = {0};
u32 data_len, chk_sz = sizeof(u32);
u32 *data = seg;
u32 i, idx_max;
/* 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 seg_len,
int poll)
{
u16 rsp_aeq = (dst_aeqn == 0) ? 0 : HINIC_MBOX_RSP_AEQN;
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->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->hwif,
HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF, mbox_ctrl);
}
static void dump_mox_reg(struct hinic_hwdev *hwdev)
{
u32 val;
val = hinic_hwif_read_reg(hwdev->hwif,
HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF);
dev_err(&hwdev->hwif->pdev->dev, "Mailbox control reg: 0x%x\n", val);
val = hinic_hwif_read_reg(hwdev->hwif,
HINIC_FUNC_CSR_MAILBOX_INT_OFFSET_OFF);
dev_err(&hwdev->hwif->pdev->dev, "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 int
wait_for_mbox_seg_completion(struct hinic_mbox_func_to_func *func_to_func,
int poll, u16 *wb_status)
{
struct hinic_send_mbox *send_mbox = &func_to_func->send_mbox;
struct hinic_hwdev *hwdev = func_to_func->hwdev;
struct completion *done = &send_mbox->send_done;
u32 cnt = 0;
unsigned long jif;
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) {
dev_err(&hwdev->hwif->pdev->dev, "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)) {
dev_err(&hwdev->hwif->pdev->dev, "Send mailbox segment timeout\n");
dump_mox_reg(hwdev);
hinic_dump_aeq_info(hwdev);
return -ETIMEDOUT;
}
*wb_status = get_mbox_status(send_mbox);
}
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;
u16 seq_dir = HINIC_MBOX_HEADER_GET(header, DIRECTION);
struct hinic_hwdev *hwdev = func_to_func->hwdev;
struct completion *done = &send_mbox->send_done;
u8 num_aeqs = hwdev->hwif->attr.num_aeqs;
u16 dst_aeqn, wb_status = 0, errcode;
if (num_aeqs >= 4)
dst_aeqn = (seq_dir == HINIC_HWIF_DIRECT_SEND) ?
HINIC_MBOX_RECV_AEQN : HINIC_MBOX_RSP_AEQN;
else
dst_aeqn = 0;
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, seg_len, poll);
wmb(); /* writing the mbox msg attributes */
if (wait_for_mbox_seg_completion(func_to_func, poll, &wb_status))
return -ETIMEDOUT;
if (!MBOX_STATUS_SUCCESS(wb_status)) {
dev_err(&hwdev->hwif->pdev->dev, "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;
u16 seg_len = MBOX_SEG_LEN;
u8 *msg_seg = (u8 *)msg;
u16 left = msg_len;
u32 seq_id = 0;
u64 header = 0;
int err = 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->hwif),
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, MBOX_SEND_MSG_INT, msg_info);
if (err) {
dev_err(&hwdev->hwif->pdev->dev, "Failed to send mbox seg, seq_id=0x%llx\n",
HINIC_MBOX_HEADER_GET(header, SEQID));
goto err_send_mbox_seg;
}
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);
}
err_send_mbox_seg:
up(&func_to_func->msg_send_sem);
return err;
}
static void
response_for_recv_func_mbox(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *recv_mbox, int err,
u16 out_size, u16 src_func_idx)
{
struct mbox_msg_info msg_info = {0};
if (recv_mbox->ack_type == MBOX_ACK) {
msg_info.msg_id = recv_mbox->msg_info.msg_id;
if (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 no data needs 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,
recv_mbox->buf_out, out_size, src_func_idx,
HINIC_HWIF_RESPONSE, MBOX_ACK,
&msg_info);
}
}
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)
{
void *buf_out = recv_mbox->buf_out;
u16 out_size = MBOX_MAX_BUF_SZ;
int err = 0;
if (HINIC_IS_VF(func_to_func->hwif)) {
err = recv_vf_mbox_handler(func_to_func, recv_mbox, buf_out,
&out_size);
} else {
if (IS_PF_OR_PPF_SRC(src_func_idx))
dev_warn(&func_to_func->hwif->pdev->dev,
"Unsupported pf2pf mbox msg\n");
else
err = recv_pf_from_vf_mbox_handler(func_to_func,
recv_mbox,
src_func_idx,
buf_out, &out_size);
}
response_for_recv_func_mbox(func_to_func, recv_mbox, err, out_size,
src_func_idx);
kfree(recv_mbox->buf_out);
kfree(recv_mbox->mbox);
kfree(recv_mbox);
}
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);
}
static int mbox_resp_info_handler(struct hinic_mbox_func_to_func *func_to_func,
struct hinic_recv_mbox *mbox_for_resp,
enum hinic_mod_type mod, u16 cmd,
void *buf_out, u16 *out_size)
{
int err;
if (mbox_for_resp->msg_info.status) {
err = mbox_for_resp->msg_info.status;
if (err != HINIC_MBOX_PF_BUSY_ACTIVE_FW)
dev_err(&func_to_func->hwif->pdev->dev, "Mbox response error(0x%x)\n",
mbox_for_resp->msg_info.status);
return err;
}
if (buf_out && out_size) {
if (*out_size < mbox_for_resp->mbox_len) {
dev_err(&func_to_func->hwif->pdev->dev,
"Invalid response mbox message length: %d for mod %d cmd %d, should less than: %d\n",
mbox_for_resp->mbox_len, mod, cmd, *out_size);
return -EFAULT;
}
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;
}
return 0;
}
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)
{
struct hinic_recv_mbox *mbox_for_resp;
struct mbox_msg_info msg_info = {0};
unsigned long timeo;
int err;
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) {
dev_err(&func_to_func->hwif->pdev->dev, "Send mailbox failed, msg_id: %d\n",
msg_info.msg_id);
set_mbox_to_func_event(func_to_func, EVENT_FAIL);
goto err_send_mbox;
}
timeo = msecs_to_jiffies(timeout ? timeout : HINIC_MBOX_COMP_TIME);
if (!wait_for_completion_timeout(&mbox_for_resp->recv_done, timeo)) {
set_mbox_to_func_event(func_to_func, EVENT_TIMEOUT);
dev_err(&func_to_func->hwif->pdev->dev,
"Send mbox msg timeout, msg_id: %d\n", msg_info.msg_id);
hinic_dump_aeq_info(func_to_func->hwdev);
err = -ETIMEDOUT;
goto err_send_mbox;
}
set_mbox_to_func_event(func_to_func, EVENT_END);
err = mbox_resp_info_handler(func_to_func, mbox_for_resp, mod, cmd,
buf_out, out_size);
err_send_mbox:
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 (in_size > HINIC_MBOX_DATA_SIZE) {
dev_err(&func_to_func->hwif->pdev->dev,
"Mbox msg len(%d) exceed limit(%d)\n",
in_size, HINIC_MBOX_DATA_SIZE);
return -EINVAL;
}
return 0;
}
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->hwif)) {
dev_err(&hwdev->hwif->pdev->dev, "Params error, func_type: %d\n",
HINIC_FUNC_TYPE(hwdev->hwif));
return -EINVAL;
}
return hinic_mbox_to_func(func_to_func, mod, cmd,
hinic_pf_id_of_vf_hw(hwdev->hwif), buf_in,
in_size, buf_out, out_size, timeout);
}
int hinic_mbox_to_vf(struct hinic_hwdev *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;
u16 dst_func_idx;
int err;
if (!hwdev)
return -EINVAL;
func_to_func = hwdev->func_to_func;
err = mbox_func_params_valid(func_to_func, buf_in, in_size);
if (err)
return err;
if (HINIC_IS_VF(hwdev->hwif)) {
dev_err(&hwdev->hwif->pdev->dev, "Params error, func_type: %d\n",
HINIC_FUNC_TYPE(hwdev->hwif));
return -EINVAL;
}
if (!vf_id) {
dev_err(&hwdev->hwif->pdev->dev,
"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->hwif) + vf_id;
return hinic_mbox_to_func(func_to_func, mod, cmd, dst_func_idx, 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 err_alloc_buf_out;
}
atomic_set(&mbox_info->msg_cnt, 0);
return 0;
err_alloc_buf_out:
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_hwdev *hwdev,
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) {
dev_err(&hwdev->hwif->pdev->dev, "Failed to init function %d mbox info\n",
func_idx);
goto err_init_mbox_info;
}
}
return 0;
err_init_mbox_info:
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->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->hwif->pdev->dev,
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->hwif->pdev->dev, MBOX_WB_STATUS_LEN,
send_mbox->wb_vaddr,
send_mbox->wb_paddr);
}
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->hwif);
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;
}
}
dev_err(&hwdev->hwif->pdev->dev,
"PF Receive VF(%d) unsupported cmd(0x%x)\n",
vf_id + hinic_glb_pf_vf_offset(hwdev->hwif), cmd);
return false;
}
static bool hinic_cmdq_check_vf_ctxt(struct hinic_hwdev *hwdev,
struct hinic_cmdq_ctxt *cmdq_ctxt)
{
struct hinic_cmdq_ctxt_info *ctxt_info = &cmdq_ctxt->ctxt_info;
u64 curr_pg_pfn, wq_block_pfn;
if (cmdq_ctxt->ppf_idx != HINIC_HWIF_PPF_IDX(hwdev->hwif) ||
cmdq_ctxt->cmdq_type > HINIC_MAX_CMDQ_TYPES)
return false;
curr_pg_pfn = HINIC_CMDQ_CTXT_PAGE_INFO_GET
(ctxt_info->curr_wqe_page_pfn, CURR_WQE_PAGE_PFN);
wq_block_pfn = HINIC_CMDQ_CTXT_BLOCK_INFO_GET
(ctxt_info->wq_block_pfn, WQ_BLOCK_PFN);
/* VF must use 0-level CLA */
if (curr_pg_pfn != wq_block_pfn)
return false;
return true;
}
static bool check_cmdq_ctxt(struct hinic_hwdev *hwdev, u16 func_idx,
void *buf_in, u16 in_size)
{
if (!hinic_mbox_check_func_id_8B(hwdev, func_idx, buf_in, in_size))
return false;
return hinic_cmdq_check_vf_ctxt(hwdev, buf_in);
}
#define HW_CTX_QPS_VALID(hw_ctxt) \
((hw_ctxt)->rq_depth >= HINIC_QUEUE_MIN_DEPTH && \
(hw_ctxt)->rq_depth <= HINIC_QUEUE_MAX_DEPTH && \
(hw_ctxt)->sq_depth >= HINIC_QUEUE_MIN_DEPTH && \
(hw_ctxt)->sq_depth <= HINIC_QUEUE_MAX_DEPTH && \
(hw_ctxt)->rx_buf_sz_idx <= HINIC_MAX_RX_BUFFER_SIZE)
static bool hw_ctxt_qps_param_valid(struct hinic_cmd_hw_ioctxt *hw_ctxt)
{
if (HW_CTX_QPS_VALID(hw_ctxt))
return true;
if (!hw_ctxt->rq_depth && !hw_ctxt->sq_depth &&
!hw_ctxt->rx_buf_sz_idx)
return true;
return false;
}
static bool check_hwctxt(struct hinic_hwdev *hwdev, u16 func_idx,
void *buf_in, u16 in_size)
{
struct hinic_cmd_hw_ioctxt *hw_ctxt = buf_in;
if (!hinic_mbox_check_func_id_8B(hwdev, func_idx, buf_in, in_size))
return false;
if (hw_ctxt->ppf_idx != HINIC_HWIF_PPF_IDX(hwdev->hwif))
return false;
if (hw_ctxt->set_cmdq_depth) {
if (hw_ctxt->cmdq_depth >= HINIC_QUEUE_MIN_DEPTH &&
hw_ctxt->cmdq_depth <= HINIC_QUEUE_MAX_DEPTH)
return true;
return false;
}
return hw_ctxt_qps_param_valid(hw_ctxt);
}
static bool check_set_wq_page_size(struct hinic_hwdev *hwdev, u16 func_idx,
void *buf_in, u16 in_size)
{
struct hinic_wq_page_size *page_size_info = buf_in;
if (!hinic_mbox_check_func_id_8B(hwdev, func_idx, buf_in, in_size))
return false;
if (page_size_info->ppf_idx != HINIC_HWIF_PPF_IDX(hwdev->hwif))
return false;
if (((1U << page_size_info->page_size) * SZ_4K) !=
HINIC_DEFAULT_WQ_PAGE_SIZE)
return false;
return true;
}
static struct vf_cmd_check_handle hw_cmd_support_vf[] = {
{HINIC_COMM_CMD_START_FLR, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_DMA_ATTR_SET, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_CMDQ_CTXT_SET, check_cmdq_ctxt},
{HINIC_COMM_CMD_CMDQ_CTXT_GET, check_cmdq_ctxt},
{HINIC_COMM_CMD_HWCTXT_SET, check_hwctxt},
{HINIC_COMM_CMD_HWCTXT_GET, check_hwctxt},
{HINIC_COMM_CMD_SQ_HI_CI_SET, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_RES_STATE_SET, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_IO_RES_CLEAR, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_CEQ_CTRL_REG_WR_BY_UP, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_MSI_CTRL_REG_WR_BY_UP, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_MSI_CTRL_REG_RD_BY_UP, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_L2NIC_RESET, hinic_mbox_check_func_id_8B},
{HINIC_COMM_CMD_PAGESIZE_SET, check_set_wq_page_size},
};
static int comm_pf_mbox_handler(void *handle, u16 vf_id, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size)
{
u8 size = ARRAY_SIZE(hw_cmd_support_vf);
struct hinic_hwdev *hwdev = handle;
struct hinic_pfhwdev *pfhwdev;
int err = 0;
pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
if (!hinic_mbox_check_cmd_valid(handle, hw_cmd_support_vf, vf_id, cmd,
buf_in, in_size, size)) {
dev_err(&hwdev->hwif->pdev->dev,
"PF Receive VF: %d common cmd: 0x%x or mbox len: 0x%x is invalid\n",
vf_id + hinic_glb_pf_vf_offset(hwdev->hwif), cmd,
in_size);
return HINIC_MBOX_VF_CMD_ERROR;
}
if (cmd == HINIC_COMM_CMD_START_FLR) {
*out_size = 0;
} else {
err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
cmd, buf_in, in_size, buf_out, out_size,
HINIC_MGMT_MSG_SYNC);
if (err && err != HINIC_MBOX_PF_BUSY_ACTIVE_FW)
dev_err(&hwdev->hwif->pdev->dev,
"PF mbox common callback handler err: %d\n",
err);
}
return err;
}
int hinic_func_to_func_init(struct hinic_hwdev *hwdev)
{
struct hinic_mbox_func_to_func *func_to_func;
struct hinic_pfhwdev *pfhwdev;
int err;
pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
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;
func_to_func->hwif = hwdev->hwif;
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) {
dev_err(&hwdev->hwif->pdev->dev, "Failed to initialize MBOX workqueue\n");
err = -ENOMEM;
goto err_create_mbox_workq;
}
err = alloc_mbox_info(hwdev, func_to_func->mbox_send);
if (err) {
dev_err(&hwdev->hwif->pdev->dev, "Failed to alloc mem for mbox_active\n");
goto err_alloc_mbox_for_send;
}
err = alloc_mbox_info(hwdev, func_to_func->mbox_resp);
if (err) {
dev_err(&hwdev->hwif->pdev->dev, "Failed to alloc mem for mbox_passive\n");
goto err_alloc_mbox_for_resp;
}
err = alloc_mbox_wb_status(func_to_func);
if (err) {
dev_err(&hwdev->hwif->pdev->dev, "Failed to alloc mbox write back status\n");
goto err_alloc_wb_status;
}
prepare_send_mbox(func_to_func);
hinic_aeq_register_hw_cb(&hwdev->aeqs, HINIC_MBX_FROM_FUNC,
&pfhwdev->hwdev, hinic_mbox_func_aeqe_handler);
hinic_aeq_register_hw_cb(&hwdev->aeqs, HINIC_MBX_SEND_RSLT,
&pfhwdev->hwdev, hinic_mbox_self_aeqe_handler);
if (!HINIC_IS_VF(hwdev->hwif))
hinic_register_pf_mbox_cb(hwdev, HINIC_MOD_COMM,
comm_pf_mbox_handler);
return 0;
err_alloc_wb_status:
free_mbox_info(func_to_func->mbox_resp);
err_alloc_mbox_for_resp:
free_mbox_info(func_to_func->mbox_send);
err_alloc_mbox_for_send:
destroy_workqueue(func_to_func->workq);
err_create_mbox_workq:
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;
hinic_aeq_unregister_hw_cb(&hwdev->aeqs, HINIC_MBX_FROM_FUNC);
hinic_aeq_unregister_hw_cb(&hwdev->aeqs, HINIC_MBX_SEND_RSLT);
hinic_unregister_pf_mbox_cb(hwdev, HINIC_MOD_COMM);
/* 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);
}
int hinic_vf_mbox_random_id_init(struct hinic_hwdev *hwdev)
{
u16 vf_offset;
u8 vf_in_pf;
int err = 0;
if (HINIC_IS_VF(hwdev->hwif))
return 0;
vf_offset = hinic_glb_pf_vf_offset(hwdev->hwif);
for (vf_in_pf = 1; vf_in_pf <= hwdev->nic_cap.max_vf; vf_in_pf++) {
err = set_vf_mbox_random_id(hwdev, vf_offset + vf_in_pf);
if (err)
break;
}
if (err == HINIC_MGMT_CMD_UNSUPPORTED) {
hwdev->func_to_func->support_vf_random = false;
err = 0;
dev_warn(&hwdev->hwif->pdev->dev, "Mgmt is unsupported to set VF%d random id\n",
vf_in_pf - 1);
} else if (!err) {
hwdev->func_to_func->support_vf_random = true;
}
return err;
}
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