Commit 088c5f0d authored by Luo bin's avatar Luo bin Committed by David S. Miller

hinic: add generating mailbox random index support

add support to generate mailbox random id of VF to ensure that
mailbox messages PF received are from the correct VF.
Signed-off-by: default avatarLuo bin <luobin9@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent da795540
......@@ -28,6 +28,8 @@
#define HINIC_MGMT_STATUS_EXIST 0x6
#define HINIC_MGMT_CMD_UNSUPPORTED 0xFF
#define HINIC_CMD_VER_FUNC_ID 2
struct hinic_cap {
u16 max_qps;
u16 num_qps;
......@@ -313,6 +315,17 @@ struct hinic_msix_config {
u8 rsvd1[3];
};
struct hinic_set_random_id {
u8 status;
u8 version;
u8 rsvd0[6];
u8 vf_in_pf;
u8 rsvd1;
u16 func_idx;
u32 random_id;
};
struct hinic_board_info {
u32 board_type;
u32 port_num;
......
......@@ -486,6 +486,111 @@ static void recv_mbox_handler(struct hinic_mbox_func_to_func *func_to_func,
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;
}
void hinic_mbox_func_aeqe_handler(void *handle, void *header, u8 size)
{
struct hinic_mbox_func_to_func *func_to_func;
......@@ -504,6 +609,9 @@ void hinic_mbox_func_aeqe_handler(void *handle, void *header, u8 size)
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];
......@@ -1210,3 +1318,32 @@ void hinic_func_to_func_free(struct hinic_hwdev *hwdev)
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;
}
......@@ -22,6 +22,8 @@
#define HINIC_FUNC_CSR_MAILBOX_RESULT_H_OFF 0x0108
#define HINIC_FUNC_CSR_MAILBOX_RESULT_L_OFF 0x010C
#define MAX_FUNCTION_NUM 512
enum hinic_mbox_ack_type {
MBOX_ACK,
MBOX_NO_ACK,
......@@ -100,6 +102,10 @@ struct hinic_mbox_func_to_func {
/* lock for mbox event flag */
spinlock_t mbox_lock;
u32 vf_mbx_old_rand_id[MAX_FUNCTION_NUM];
u32 vf_mbx_rand_id[MAX_FUNCTION_NUM];
bool support_vf_random;
};
struct hinic_mbox_work {
......@@ -151,4 +157,6 @@ 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);
int hinic_vf_mbox_random_id_init(struct hinic_hwdev *hwdev);
#endif
......@@ -93,6 +93,8 @@ enum hinic_comm_cmd {
HINIC_COMM_CMD_WATCHDOG_INFO = 0x56,
HINIC_MGMT_CMD_SET_VF_RANDOM_ID = 0x61,
HINIC_COMM_CMD_MAX,
};
......
......@@ -1108,6 +1108,13 @@ int hinic_vf_func_init(struct hinic_hwdev *hwdev)
int err = 0;
u32 size, i;
err = hinic_vf_mbox_random_id_init(hwdev);
if (err) {
dev_err(&hwdev->hwif->pdev->dev, "Failed to init vf mbox random id, err: %d\n",
err);
return err;
}
nic_io = &hwdev->func_to_io;
if (HINIC_IS_VF(hwdev->hwif)) {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment