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: Luo bin <luobin9@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Luo bin
David S. Miller
parent
da7955405f
commit
088c5f0d1a
@ -28,6 +28,8 @@
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#define HINIC_MGMT_STATUS_EXIST 0x6
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#define HINIC_MGMT_CMD_UNSUPPORTED 0xFF
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#define HINIC_CMD_VER_FUNC_ID 2
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struct hinic_cap {
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u16 max_qps;
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u16 num_qps;
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@ -313,6 +315,17 @@ struct hinic_msix_config {
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u8 rsvd1[3];
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};
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struct hinic_set_random_id {
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u8 status;
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u8 version;
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u8 rsvd0[6];
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u8 vf_in_pf;
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u8 rsvd1;
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u16 func_idx;
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u32 random_id;
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};
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struct hinic_board_info {
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u32 board_type;
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u32 port_num;
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@ -486,6 +486,111 @@ err_alloc_rcv_mbox_msg:
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kfree(rcv_mbox_temp);
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}
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static int set_vf_mbox_random_id(struct hinic_hwdev *hwdev, u16 func_id)
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{
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struct hinic_mbox_func_to_func *func_to_func = hwdev->func_to_func;
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struct hinic_set_random_id rand_info = {0};
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u16 out_size = sizeof(rand_info);
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struct hinic_pfhwdev *pfhwdev;
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int ret;
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pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
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rand_info.version = HINIC_CMD_VER_FUNC_ID;
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rand_info.func_idx = func_id;
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rand_info.vf_in_pf = func_id - hinic_glb_pf_vf_offset(hwdev->hwif);
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rand_info.random_id = get_random_u32();
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func_to_func->vf_mbx_rand_id[func_id] = rand_info.random_id;
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ret = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
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HINIC_MGMT_CMD_SET_VF_RANDOM_ID,
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&rand_info, sizeof(rand_info),
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&rand_info, &out_size, HINIC_MGMT_MSG_SYNC);
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if ((rand_info.status != HINIC_MGMT_CMD_UNSUPPORTED &&
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rand_info.status) || !out_size || ret) {
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dev_err(&hwdev->hwif->pdev->dev, "Set VF random id failed, err: %d, status: 0x%x, out size: 0x%x\n",
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ret, rand_info.status, out_size);
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return -EIO;
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}
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if (rand_info.status == HINIC_MGMT_CMD_UNSUPPORTED)
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return rand_info.status;
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func_to_func->vf_mbx_old_rand_id[func_id] =
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func_to_func->vf_mbx_rand_id[func_id];
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return 0;
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}
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static void update_random_id_work_handler(struct work_struct *work)
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{
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struct hinic_mbox_work *mbox_work =
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container_of(work, struct hinic_mbox_work, work);
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struct hinic_mbox_func_to_func *func_to_func;
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u16 src = mbox_work->src_func_idx;
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func_to_func = mbox_work->func_to_func;
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if (set_vf_mbox_random_id(func_to_func->hwdev, src))
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dev_warn(&func_to_func->hwdev->hwif->pdev->dev, "Update VF id: 0x%x random id failed\n",
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mbox_work->src_func_idx);
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kfree(mbox_work);
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}
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static bool check_vf_mbox_random_id(struct hinic_mbox_func_to_func *func_to_func,
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u8 *header)
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{
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struct hinic_hwdev *hwdev = func_to_func->hwdev;
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struct hinic_mbox_work *mbox_work = NULL;
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u64 mbox_header = *((u64 *)header);
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u16 offset, src;
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u32 random_id;
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int vf_in_pf;
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src = HINIC_MBOX_HEADER_GET(mbox_header, SRC_GLB_FUNC_IDX);
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if (IS_PF_OR_PPF_SRC(src) || !func_to_func->support_vf_random)
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return true;
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if (!HINIC_IS_PPF(hwdev->hwif)) {
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offset = hinic_glb_pf_vf_offset(hwdev->hwif);
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vf_in_pf = src - offset;
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if (vf_in_pf < 1 || vf_in_pf > hwdev->nic_cap.max_vf) {
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dev_warn(&hwdev->hwif->pdev->dev,
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"Receive vf id(0x%x) is invalid, vf id should be from 0x%x to 0x%x\n",
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src, offset + 1,
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hwdev->nic_cap.max_vf + offset);
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return false;
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}
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}
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random_id = be32_to_cpu(*(u32 *)(header + MBOX_SEG_LEN +
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MBOX_HEADER_SZ));
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if (random_id == func_to_func->vf_mbx_rand_id[src] ||
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random_id == func_to_func->vf_mbx_old_rand_id[src])
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return true;
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dev_warn(&hwdev->hwif->pdev->dev,
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"The mailbox random id(0x%x) of func_id(0x%x) doesn't match with pf reservation(0x%x)\n",
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random_id, src, func_to_func->vf_mbx_rand_id[src]);
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mbox_work = kzalloc(sizeof(*mbox_work), GFP_KERNEL);
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if (!mbox_work)
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return false;
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mbox_work->func_to_func = func_to_func;
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mbox_work->src_func_idx = src;
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INIT_WORK(&mbox_work->work, update_random_id_work_handler);
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queue_work(func_to_func->workq, &mbox_work->work);
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return false;
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}
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void hinic_mbox_func_aeqe_handler(void *handle, void *header, u8 size)
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{
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struct hinic_mbox_func_to_func *func_to_func;
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@ -504,6 +609,9 @@ void hinic_mbox_func_aeqe_handler(void *handle, void *header, u8 size)
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return;
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}
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if (!check_vf_mbox_random_id(func_to_func, header))
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return;
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recv_mbox = (dir == HINIC_HWIF_DIRECT_SEND) ?
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&func_to_func->mbox_send[src] :
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&func_to_func->mbox_resp[src];
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@ -1210,3 +1318,32 @@ void hinic_func_to_func_free(struct hinic_hwdev *hwdev)
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kfree(func_to_func);
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}
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int hinic_vf_mbox_random_id_init(struct hinic_hwdev *hwdev)
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{
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u16 vf_offset;
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u8 vf_in_pf;
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int err = 0;
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if (HINIC_IS_VF(hwdev->hwif))
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return 0;
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vf_offset = hinic_glb_pf_vf_offset(hwdev->hwif);
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for (vf_in_pf = 1; vf_in_pf <= hwdev->nic_cap.max_vf; vf_in_pf++) {
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err = set_vf_mbox_random_id(hwdev, vf_offset + vf_in_pf);
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if (err)
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break;
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}
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if (err == HINIC_MGMT_CMD_UNSUPPORTED) {
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hwdev->func_to_func->support_vf_random = false;
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err = 0;
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dev_warn(&hwdev->hwif->pdev->dev, "Mgmt is unsupported to set VF%d random id\n",
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vf_in_pf - 1);
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} else if (!err) {
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hwdev->func_to_func->support_vf_random = true;
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}
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return err;
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}
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@ -22,6 +22,8 @@
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#define HINIC_FUNC_CSR_MAILBOX_RESULT_H_OFF 0x0108
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#define HINIC_FUNC_CSR_MAILBOX_RESULT_L_OFF 0x010C
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#define MAX_FUNCTION_NUM 512
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enum hinic_mbox_ack_type {
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MBOX_ACK,
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MBOX_NO_ACK,
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@ -100,6 +102,10 @@ struct hinic_mbox_func_to_func {
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/* lock for mbox event flag */
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spinlock_t mbox_lock;
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u32 vf_mbx_old_rand_id[MAX_FUNCTION_NUM];
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u32 vf_mbx_rand_id[MAX_FUNCTION_NUM];
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bool support_vf_random;
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};
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struct hinic_mbox_work {
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@ -151,4 +157,6 @@ int hinic_mbox_to_vf(struct hinic_hwdev *hwdev,
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enum hinic_mod_type mod, u16 vf_id, u8 cmd, void *buf_in,
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u16 in_size, void *buf_out, u16 *out_size, u32 timeout);
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int hinic_vf_mbox_random_id_init(struct hinic_hwdev *hwdev);
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#endif
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@ -93,6 +93,8 @@ enum hinic_comm_cmd {
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HINIC_COMM_CMD_WATCHDOG_INFO = 0x56,
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HINIC_MGMT_CMD_SET_VF_RANDOM_ID = 0x61,
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HINIC_COMM_CMD_MAX,
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};
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@ -1108,6 +1108,13 @@ int hinic_vf_func_init(struct hinic_hwdev *hwdev)
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int err = 0;
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u32 size, i;
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err = hinic_vf_mbox_random_id_init(hwdev);
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if (err) {
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dev_err(&hwdev->hwif->pdev->dev, "Failed to init vf mbox random id, err: %d\n",
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err);
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return err;
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}
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nic_io = &hwdev->func_to_io;
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if (HINIC_IS_VF(hwdev->hwif)) {
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