net/ice/base: return error directly
[dpdk.git] / drivers / net / hns3 / hns3_ethdev.c
index 30151b6..5a234e2 100644 (file)
 #define HNS3_RESET_WAIT_MS     100
 #define HNS3_RESET_WAIT_CNT    200
 
+/* FEC mode order defined in HNS3 hardware */
+#define HNS3_HW_FEC_MODE_NOFEC  0
+#define HNS3_HW_FEC_MODE_BASER  1
+#define HNS3_HW_FEC_MODE_RS     2
+
 enum hns3_evt_cause {
        HNS3_VECTOR0_EVENT_RST,
        HNS3_VECTOR0_EVENT_MBX,
@@ -70,6 +75,34 @@ enum hns3_evt_cause {
        HNS3_VECTOR0_EVENT_OTHER,
 };
 
+static const struct rte_eth_fec_capa speed_fec_capa_tbl[] = {
+       { ETH_SPEED_NUM_10G, RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(BASER) },
+
+       { ETH_SPEED_NUM_25G, RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(BASER) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(RS) },
+
+       { ETH_SPEED_NUM_40G, RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(BASER) },
+
+       { ETH_SPEED_NUM_50G, RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(BASER) |
+                            RTE_ETH_FEC_MODE_CAPA_MASK(RS) },
+
+       { ETH_SPEED_NUM_100G, RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC) |
+                             RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) |
+                             RTE_ETH_FEC_MODE_CAPA_MASK(RS) },
+
+       { ETH_SPEED_NUM_200G, RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC) |
+                             RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) |
+                             RTE_ETH_FEC_MODE_CAPA_MASK(RS) }
+};
+
 static enum hns3_reset_level hns3_get_reset_level(struct hns3_adapter *hns,
                                                 uint64_t *levels);
 static int hns3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
@@ -81,6 +114,8 @@ static int hns3_add_mc_addr(struct hns3_hw *hw,
                            struct rte_ether_addr *mac_addr);
 static int hns3_remove_mc_addr(struct hns3_hw *hw,
                            struct rte_ether_addr *mac_addr);
+static int hns3_restore_fec(struct hns3_hw *hw);
+static int hns3_query_dev_fec_info(struct rte_eth_dev *dev);
 
 static void
 hns3_pf_disable_irq0(struct hns3_hw *hw)
@@ -2976,6 +3011,13 @@ hns3_get_capability(struct hns3_hw *hw)
            device_id == HNS3_DEV_ID_200G_RDMA)
                hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_DCB_B, 1);
 
+       ret = hns3_query_dev_fec_info(eth_dev);
+       if (ret) {
+               PMD_INIT_LOG(ERR,
+                            "failed to query FEC information, ret = %d", ret);
+               return ret;
+       }
+
        /* Get PCI revision id */
        ret = rte_pci_read_config(pci_dev, &revision, HNS3_PCI_REVISION_ID_LEN,
                                  HNS3_PCI_REVISION_ID);
@@ -4948,13 +4990,14 @@ hns3_unmap_rx_interrupt(struct rte_eth_dev *dev)
        }
 }
 
-static void
+static int
 hns3_dev_stop(struct rte_eth_dev *dev)
 {
        struct hns3_adapter *hns = dev->data->dev_private;
        struct hns3_hw *hw = &hns->hw;
 
        PMD_INIT_FUNC_TRACE();
+       dev->data->dev_started = 0;
 
        hw->adapter_state = HNS3_NIC_STOPPING;
        hns3_set_rxtx_function(dev);
@@ -4975,6 +5018,8 @@ hns3_dev_stop(struct rte_eth_dev *dev)
        hns3_rx_scattered_reset(dev);
        rte_eal_alarm_cancel(hns3_service_handler, dev);
        rte_spinlock_unlock(&hw->lock);
+
+       return 0;
 }
 
 static int
@@ -4982,6 +5027,7 @@ hns3_dev_close(struct rte_eth_dev *eth_dev)
 {
        struct hns3_adapter *hns = eth_dev->data->dev_private;
        struct hns3_hw *hw = &hns->hw;
+       int ret = 0;
 
        if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
                rte_free(eth_dev->process_private);
@@ -4990,7 +5036,7 @@ hns3_dev_close(struct rte_eth_dev *eth_dev)
        }
 
        if (hw->adapter_state == HNS3_NIC_STARTED)
-               hns3_dev_stop(eth_dev);
+               ret = hns3_dev_stop(eth_dev);
 
        hw->adapter_state = HNS3_NIC_CLOSING;
        hns3_reset_abort(hns);
@@ -5007,7 +5053,7 @@ hns3_dev_close(struct rte_eth_dev *eth_dev)
        hns3_mp_uninit_primary();
        hns3_warn(hw, "Close port %d finished", hw->data->port_id);
 
-       return 0;
+       return ret;
 }
 
 static int
@@ -5567,6 +5613,10 @@ hns3_restore_conf(struct hns3_adapter *hns)
        if (ret)
                goto err_promisc;
 
+       ret = hns3_restore_fec(hw);
+       if (ret)
+               goto err_promisc;
+
        if (hns->hw.adapter_state == HNS3_NIC_STARTED) {
                ret = hns3_do_start(hns, false);
                if (ret)
@@ -5645,6 +5695,313 @@ hns3_reset_service(void *param)
                hns3_msix_process(hns, reset_level);
 }
 
+static unsigned int
+hns3_get_speed_capa_num(uint16_t device_id)
+{
+       unsigned int num;
+
+       switch (device_id) {
+       case HNS3_DEV_ID_25GE:
+       case HNS3_DEV_ID_25GE_RDMA:
+               num = 2;
+               break;
+       case HNS3_DEV_ID_100G_RDMA_MACSEC:
+       case HNS3_DEV_ID_200G_RDMA:
+               num = 1;
+               break;
+       default:
+               num = 0;
+               break;
+       }
+
+       return num;
+}
+
+static int
+hns3_get_speed_fec_capa(struct rte_eth_fec_capa *speed_fec_capa,
+                       uint16_t device_id)
+{
+       switch (device_id) {
+       case HNS3_DEV_ID_25GE:
+       /* fallthrough */
+       case HNS3_DEV_ID_25GE_RDMA:
+               speed_fec_capa[0].speed = speed_fec_capa_tbl[1].speed;
+               speed_fec_capa[0].capa = speed_fec_capa_tbl[1].capa;
+
+               /* In HNS3 device, the 25G NIC is compatible with 10G rate */
+               speed_fec_capa[1].speed = speed_fec_capa_tbl[0].speed;
+               speed_fec_capa[1].capa = speed_fec_capa_tbl[0].capa;
+               break;
+       case HNS3_DEV_ID_100G_RDMA_MACSEC:
+               speed_fec_capa[0].speed = speed_fec_capa_tbl[4].speed;
+               speed_fec_capa[0].capa = speed_fec_capa_tbl[4].capa;
+               break;
+       case HNS3_DEV_ID_200G_RDMA:
+               speed_fec_capa[0].speed = speed_fec_capa_tbl[5].speed;
+               speed_fec_capa[0].capa = speed_fec_capa_tbl[5].capa;
+               break;
+       default:
+               return -ENOTSUP;
+       }
+
+       return 0;
+}
+
+static int
+hns3_fec_get_capability(struct rte_eth_dev *dev,
+                       struct rte_eth_fec_capa *speed_fec_capa,
+                       unsigned int num)
+{
+       struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+       uint16_t device_id = pci_dev->id.device_id;
+       unsigned int capa_num;
+       int ret;
+
+       capa_num = hns3_get_speed_capa_num(device_id);
+       if (capa_num == 0) {
+               hns3_err(hw, "device(0x%x) is not supported by hns3 PMD",
+                        device_id);
+               return -ENOTSUP;
+       }
+
+       if (speed_fec_capa == NULL || num < capa_num)
+               return capa_num;
+
+       ret = hns3_get_speed_fec_capa(speed_fec_capa, device_id);
+       if (ret)
+               return -ENOTSUP;
+
+       return capa_num;
+}
+
+static int
+get_current_fec_auto_state(struct hns3_hw *hw, uint8_t *state)
+{
+       struct hns3_config_fec_cmd *req;
+       struct hns3_cmd_desc desc;
+       int ret;
+
+       hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_CONFIG_FEC_MODE, true);
+       req = (struct hns3_config_fec_cmd *)desc.data;
+       ret = hns3_cmd_send(hw, &desc, 1);
+       if (ret) {
+               hns3_err(hw, "get current fec auto state failed, ret = %d",
+                        ret);
+               return ret;
+       }
+
+       *state = req->fec_mode & (1U << HNS3_MAC_CFG_FEC_AUTO_EN_B);
+       return 0;
+}
+
+static int
+hns3_fec_get(struct rte_eth_dev *dev, uint32_t *fec_capa)
+{
+#define QUERY_ACTIVE_SPEED     1
+       struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct hns3_sfp_speed_cmd *resp;
+       uint32_t tmp_fec_capa;
+       uint8_t auto_state;
+       struct hns3_cmd_desc desc;
+       int ret;
+
+       /*
+        * If link is down and AUTO is enabled, AUTO is returned, otherwise,
+        * configured FEC mode is returned.
+        * If link is up, current FEC mode is returned.
+        */
+       if (hw->mac.link_status == ETH_LINK_DOWN) {
+               ret = get_current_fec_auto_state(hw, &auto_state);
+               if (ret)
+                       return ret;
+
+               if (auto_state == 0x1) {
+                       *fec_capa = RTE_ETH_FEC_MODE_CAPA_MASK(AUTO);
+                       return 0;
+               }
+       }
+
+       hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_SFP_GET_SPEED, true);
+       resp = (struct hns3_sfp_speed_cmd *)desc.data;
+       resp->query_type = QUERY_ACTIVE_SPEED;
+
+       ret = hns3_cmd_send(hw, &desc, 1);
+       if (ret == -EOPNOTSUPP) {
+               hns3_err(hw, "IMP do not support get FEC, ret = %d", ret);
+               return ret;
+       } else if (ret) {
+               hns3_err(hw, "get FEC failed, ret = %d", ret);
+               return ret;
+       }
+
+       /*
+        * FEC mode order defined in hns3 hardware is inconsistend with
+        * that defined in the ethdev library. So the sequence needs
+        * to be converted.
+        */
+       switch (resp->active_fec) {
+       case HNS3_HW_FEC_MODE_NOFEC:
+               tmp_fec_capa = RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC);
+               break;
+       case HNS3_HW_FEC_MODE_BASER:
+               tmp_fec_capa = RTE_ETH_FEC_MODE_CAPA_MASK(BASER);
+               break;
+       case HNS3_HW_FEC_MODE_RS:
+               tmp_fec_capa = RTE_ETH_FEC_MODE_CAPA_MASK(RS);
+               break;
+       default:
+               tmp_fec_capa = RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC);
+               break;
+       }
+
+       *fec_capa = tmp_fec_capa;
+       return 0;
+}
+
+static int
+hns3_set_fec_hw(struct hns3_hw *hw, uint32_t mode)
+{
+       struct hns3_config_fec_cmd *req;
+       struct hns3_cmd_desc desc;
+       int ret;
+
+       hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_CONFIG_FEC_MODE, false);
+
+       req = (struct hns3_config_fec_cmd *)desc.data;
+       switch (mode) {
+       case RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC):
+               hns3_set_field(req->fec_mode, HNS3_MAC_CFG_FEC_MODE_M,
+                               HNS3_MAC_CFG_FEC_MODE_S, HNS3_MAC_FEC_OFF);
+               break;
+       case RTE_ETH_FEC_MODE_CAPA_MASK(BASER):
+               hns3_set_field(req->fec_mode, HNS3_MAC_CFG_FEC_MODE_M,
+                               HNS3_MAC_CFG_FEC_MODE_S, HNS3_MAC_FEC_BASER);
+               break;
+       case RTE_ETH_FEC_MODE_CAPA_MASK(RS):
+               hns3_set_field(req->fec_mode, HNS3_MAC_CFG_FEC_MODE_M,
+                               HNS3_MAC_CFG_FEC_MODE_S, HNS3_MAC_FEC_RS);
+               break;
+       case RTE_ETH_FEC_MODE_CAPA_MASK(AUTO):
+               hns3_set_bit(req->fec_mode, HNS3_MAC_CFG_FEC_AUTO_EN_B, 1);
+               break;
+       default:
+               return 0;
+       }
+       ret = hns3_cmd_send(hw, &desc, 1);
+       if (ret)
+               hns3_err(hw, "set fec mode failed, ret = %d", ret);
+
+       return ret;
+}
+
+static uint32_t
+get_current_speed_fec_cap(struct hns3_hw *hw, struct rte_eth_fec_capa *fec_capa)
+{
+       struct hns3_mac *mac = &hw->mac;
+       uint32_t cur_capa;
+
+       switch (mac->link_speed) {
+       case ETH_SPEED_NUM_10G:
+               cur_capa = fec_capa[1].capa;
+               break;
+       case ETH_SPEED_NUM_25G:
+       case ETH_SPEED_NUM_100G:
+       case ETH_SPEED_NUM_200G:
+               cur_capa = fec_capa[0].capa;
+               break;
+       default:
+               cur_capa = 0;
+               break;
+       }
+
+       return cur_capa;
+}
+
+static bool
+is_fec_mode_one_bit_set(uint32_t mode)
+{
+       int cnt = 0;
+       uint8_t i;
+
+       for (i = 0; i < sizeof(mode); i++)
+               if (mode >> i & 0x1)
+                       cnt++;
+
+       return cnt == 1 ? true : false;
+}
+
+static int
+hns3_fec_set(struct rte_eth_dev *dev, uint32_t mode)
+{
+#define FEC_CAPA_NUM 2
+       struct hns3_adapter *hns = dev->data->dev_private;
+       struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(hns);
+       struct hns3_pf *pf = &hns->pf;
+
+       struct rte_eth_fec_capa fec_capa[FEC_CAPA_NUM];
+       uint32_t cur_capa;
+       uint32_t num = FEC_CAPA_NUM;
+       int ret;
+
+       ret = hns3_fec_get_capability(dev, fec_capa, num);
+       if (ret < 0)
+               return ret;
+
+       /* HNS3 PMD driver only support one bit set mode, e.g. 0x1, 0x4 */
+       if (!is_fec_mode_one_bit_set(mode))
+               hns3_err(hw, "FEC mode(0x%x) not supported in HNS3 PMD,"
+                            "FEC mode should be only one bit set", mode);
+
+       /*
+        * Check whether the configured mode is within the FEC capability.
+        * If not, the configured mode will not be supported.
+        */
+       cur_capa = get_current_speed_fec_cap(hw, fec_capa);
+       if (!(cur_capa & mode)) {
+               hns3_err(hw, "unsupported FEC mode = 0x%x", mode);
+               return -EINVAL;
+       }
+
+       ret = hns3_set_fec_hw(hw, mode);
+       if (ret)
+               return ret;
+
+       pf->fec_mode = mode;
+       return 0;
+}
+
+static int
+hns3_restore_fec(struct hns3_hw *hw)
+{
+       struct hns3_adapter *hns = HNS3_DEV_HW_TO_ADAPTER(hw);
+       struct hns3_pf *pf = &hns->pf;
+       uint32_t mode = pf->fec_mode;
+       int ret;
+
+       ret = hns3_set_fec_hw(hw, mode);
+       if (ret)
+               hns3_err(hw, "restore fec mode(0x%x) failed, ret = %d",
+                        mode, ret);
+
+       return ret;
+}
+
+static int
+hns3_query_dev_fec_info(struct rte_eth_dev *dev)
+{
+       struct hns3_adapter *hns = dev->data->dev_private;
+       struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(hns);
+       struct hns3_pf *pf = &hns->pf;
+       int ret;
+
+       ret = hns3_fec_get(dev, &pf->fec_mode);
+       if (ret)
+               hns3_err(hw, "query device FEC info failed, ret = %d", ret);
+
+       return ret;
+}
+
 static const struct eth_dev_ops hns3_eth_dev_ops = {
        .dev_configure      = hns3_dev_configure,
        .dev_start          = hns3_dev_start,
@@ -5698,6 +6055,9 @@ static const struct eth_dev_ops hns3_eth_dev_ops = {
        .get_reg                = hns3_get_regs,
        .get_dcb_info           = hns3_get_dcb_info,
        .dev_supported_ptypes_get = hns3_dev_supported_ptypes_get,
+       .fec_get_capability     = hns3_fec_get_capability,
+       .fec_get                = hns3_fec_get,
+       .fec_set                = hns3_fec_set,
 };
 
 static const struct hns3_reset_ops hns3_reset_ops = {
@@ -5746,6 +6106,8 @@ hns3_dev_init(struct rte_eth_dev *eth_dev)
                return 0;
        }
 
+       eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
+
        ret = hns3_mp_init_primary();
        if (ret) {
                PMD_INIT_LOG(ERR,
@@ -5844,10 +6206,6 @@ hns3_dev_uninit(struct rte_eth_dev *eth_dev)
        if (rte_eal_process_type() != RTE_PROC_PRIMARY)
                return -EPERM;
 
-       eth_dev->dev_ops = NULL;
-       eth_dev->rx_pkt_burst = NULL;
-       eth_dev->tx_pkt_burst = NULL;
-       eth_dev->tx_pkt_prepare = NULL;
        if (hw->adapter_state < HNS3_NIC_CLOSING)
                hns3_dev_close(eth_dev);