net/bnxt: remove spurious warning in Rx handler
[dpdk.git] / drivers / net / hns3 / hns3_ethdev_vf.c
index bd52e19..505525e 100644 (file)
@@ -131,7 +131,7 @@ hns3vf_enable_msix(const struct rte_pci_device *device, bool op)
                                     (pos + PCI_MSIX_FLAGS));
                return 0;
        }
-       return -1;
+       return -ENXIO;
 }
 
 static int
@@ -208,12 +208,27 @@ hns3vf_set_default_mac_addr(struct rte_eth_dev *dev,
 
        ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_UNICAST,
                                HNS3_MBX_MAC_VLAN_UC_MODIFY, addr_bytes,
-                               HNS3_TWO_ETHER_ADDR_LEN, false, NULL, 0);
+                               HNS3_TWO_ETHER_ADDR_LEN, true, NULL, 0);
        if (ret) {
-               rte_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
-                                     mac_addr);
-               hns3_err(hw, "Failed to set mac addr(%s) for vf: %d", mac_str,
-                        ret);
+               /*
+                * The hns3 VF PMD driver depends on the hns3 PF kernel ethdev
+                * driver. When user has configured a MAC address for VF device
+                * by "ip link set ..." command based on the PF device, the hns3
+                * PF kernel ethdev driver does not allow VF driver to request
+                * reconfiguring a different default MAC address, and return
+                * -EPREM to VF driver through mailbox.
+                */
+               if (ret == -EPERM) {
+                       rte_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
+                                             old_addr);
+                       hns3_warn(hw, "Has permanet mac addr(%s) for vf",
+                                 mac_str);
+               } else {
+                       rte_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
+                                             mac_addr);
+                       hns3_err(hw, "Failed to set mac addr(%s) for vf: %d",
+                                mac_str, ret);
+               }
        }
 
        rte_ether_addr_copy(mac_addr,
@@ -428,24 +443,28 @@ hns3vf_dev_configure(struct rte_eth_dev *dev)
        int ret;
 
        /*
-        * Hardware does not support where the number of rx and tx queues is
-        * not equal in hip08.
+        * Hardware does not support individually enable/disable/reset the Tx or
+        * Rx queue in hns3 network engine. Driver must enable/disable/reset Tx
+        * and Rx queues at the same time. When the numbers of Tx queues
+        * allocated by upper applications are not equal to the numbers of Rx
+        * queues, driver needs to setup fake Tx or Rx queues to adjust numbers
+        * of Tx/Rx queues. otherwise, network engine can not work as usual. But
+        * these fake queues are imperceptible, and can not be used by upper
+        * applications.
         */
-       if (nb_rx_q != nb_tx_q) {
-               hns3_err(hw,
-                        "nb_rx_queues(%u) not equal with nb_tx_queues(%u)! "
-                        "Hardware does not support this configuration!",
-                        nb_rx_q, nb_tx_q);
-               return -EINVAL;
+       ret = hns3_set_fake_rx_or_tx_queues(dev, nb_rx_q, nb_tx_q);
+       if (ret) {
+               hns3_err(hw, "Failed to set rx/tx fake queues: %d", ret);
+               return ret;
        }
 
+       hw->adapter_state = HNS3_NIC_CONFIGURING;
        if (conf->link_speeds & ETH_LINK_SPEED_FIXED) {
                hns3_err(hw, "setting link speed/duplex not supported");
-               return -EINVAL;
+               ret = -EINVAL;
+               goto cfg_err;
        }
 
-       hw->adapter_state = HNS3_NIC_CONFIGURING;
-
        /* When RSS is not configured, redirect the packet queue 0 */
        if ((uint32_t)mq_mode & ETH_MQ_RX_RSS_FLAG) {
                rss_conf = conf->rx_adv_conf.rss_conf;
@@ -484,7 +503,9 @@ hns3vf_dev_configure(struct rte_eth_dev *dev)
        return 0;
 
 cfg_err:
+       (void)hns3_set_fake_rx_or_tx_queues(dev, 0, 0);
        hw->adapter_state = HNS3_NIC_INITIALIZED;
+
        return ret;
 }
 
@@ -778,6 +799,24 @@ hns3vf_get_tc_info(struct hns3_hw *hw)
        return 0;
 }
 
+static int
+hns3vf_get_host_mac_addr(struct hns3_hw *hw)
+{
+       uint8_t host_mac[RTE_ETHER_ADDR_LEN];
+       int ret;
+
+       ret = hns3_send_mbx_msg(hw, HNS3_MBX_GET_MAC_ADDR, 0, NULL, 0,
+                               true, host_mac, RTE_ETHER_ADDR_LEN);
+       if (ret) {
+               hns3_err(hw, "Failed to get mac addr from PF: %d", ret);
+               return ret;
+       }
+
+       memcpy(hw->mac.mac_addr, host_mac, RTE_ETHER_ADDR_LEN);
+
+       return 0;
+}
+
 static int
 hns3vf_get_configuration(struct hns3_hw *hw)
 {
@@ -795,16 +834,21 @@ hns3vf_get_configuration(struct hns3_hw *hw)
        if (ret)
                return ret;
 
+       /* Get user defined VF MAC addr from PF */
+       ret = hns3vf_get_host_mac_addr(hw);
+       if (ret)
+               return ret;
+
        /* Get tc configuration from PF */
        return hns3vf_get_tc_info(hw);
 }
 
-static void
+static int
 hns3vf_set_tc_info(struct hns3_adapter *hns)
 {
        struct hns3_hw *hw = &hns->hw;
        uint16_t nb_rx_q = hw->data->nb_rx_queues;
-       uint16_t new_tqps;
+       uint16_t nb_tx_q = hw->data->nb_tx_queues;
        uint8_t i;
 
        hw->num_tc = 0;
@@ -812,11 +856,22 @@ hns3vf_set_tc_info(struct hns3_adapter *hns)
                if (hw->hw_tc_map & BIT(i))
                        hw->num_tc++;
 
-       new_tqps = RTE_MIN(hw->tqps_num, nb_rx_q);
-       hw->alloc_rss_size = RTE_MIN(hw->rss_size_max, new_tqps / hw->num_tc);
-       hw->alloc_tqps = hw->alloc_rss_size * hw->num_tc;
+       if (nb_rx_q < hw->num_tc) {
+               hns3_err(hw, "number of Rx queues(%d) is less than tcs(%d).",
+                        nb_rx_q, hw->num_tc);
+               return -EINVAL;
+       }
+
+       if (nb_tx_q < hw->num_tc) {
+               hns3_err(hw, "number of Tx queues(%d) is less than tcs(%d).",
+                        nb_tx_q, hw->num_tc);
+               return -EINVAL;
+       }
 
-       hns3_tc_queue_mapping_cfg(hw);
+       hns3_set_rss_size(hw, nb_rx_q);
+       hns3_tc_queue_mapping_cfg(hw, nb_tx_q);
+
+       return 0;
 }
 
 static void
@@ -1153,7 +1208,20 @@ hns3vf_init_vf(struct rte_eth_dev *eth_dev)
                goto err_get_config;
        }
 
-       rte_eth_random_addr(hw->mac.mac_addr); /* Generate a random mac addr */
+       /*
+        * The hns3 PF ethdev driver in kernel support setting VF MAC address
+        * on the host by "ip link set ..." command. To avoid some incorrect
+        * scenes, for example, hns3 VF PMD driver fails to receive and send
+        * packets after user configure the MAC address by using the
+        * "ip link set ..." command, hns3 VF PMD driver keep the same MAC
+        * address strategy as the hns3 kernel ethdev driver in the
+        * initialization. If user configure a MAC address by the ip command
+        * for VF device, then hns3 VF PMD driver will start with it, otherwise
+        * start with a random MAC address in the initialization.
+        */
+       ret = rte_is_zero_ether_addr((struct rte_ether_addr *)hw->mac.mac_addr);
+       if (ret)
+               rte_eth_random_addr(hw->mac.mac_addr);
 
        ret = hns3vf_clear_vport_list(hw);
        if (ret) {
@@ -1167,7 +1235,6 @@ hns3vf_init_vf(struct rte_eth_dev *eth_dev)
 
        hns3_set_default_rss_args(hw);
 
-       (void)hns3_stats_reset(eth_dev);
        return 0;
 
 err_get_config:
@@ -1257,6 +1324,7 @@ hns3vf_do_stop(struct hns3_adapter *hns)
 static void
 hns3vf_unmap_rx_interrupt(struct rte_eth_dev *dev)
 {
+       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);
        struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        uint8_t base = 0;
@@ -1272,7 +1340,7 @@ hns3vf_unmap_rx_interrupt(struct rte_eth_dev *dev)
                base = RTE_INTR_VEC_RXTX_OFFSET;
        }
        if (rte_intr_dp_is_en(intr_handle)) {
-               for (q_id = 0; q_id < dev->data->nb_rx_queues; q_id++) {
+               for (q_id = 0; q_id < hw->used_rx_queues; q_id++) {
                        (void)hns3vf_bind_ring_with_vector(dev, vec, false,
                                                           q_id);
                        if (vec < base + intr_handle->nb_efd - 1)
@@ -1382,7 +1450,9 @@ hns3vf_do_start(struct hns3_adapter *hns, bool reset_queue)
        struct hns3_hw *hw = &hns->hw;
        int ret;
 
-       hns3vf_set_tc_info(hns);
+       ret = hns3vf_set_tc_info(hns);
+       if (ret)
+               return ret;
 
        ret = hns3_start_queues(hns, reset_queue);
        if (ret) {
@@ -1413,8 +1483,8 @@ hns3vf_map_rx_interrupt(struct rte_eth_dev *dev)
 
        /* check and configure queue intr-vector mapping */
        if (rte_intr_cap_multiple(intr_handle) ||
-               !RTE_ETH_DEV_SRIOV(dev).active) {
-               intr_vector = dev->data->nb_rx_queues;
+           !RTE_ETH_DEV_SRIOV(dev).active) {
+               intr_vector = hw->used_rx_queues;
                /* It creates event fd for each intr vector when MSIX is used */
                if (rte_intr_efd_enable(intr_handle, intr_vector))
                        return -EINVAL;
@@ -1422,10 +1492,10 @@ hns3vf_map_rx_interrupt(struct rte_eth_dev *dev)
        if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
                intr_handle->intr_vec =
                        rte_zmalloc("intr_vec",
-                                   dev->data->nb_rx_queues * sizeof(int), 0);
+                                   hw->used_rx_queues * sizeof(int), 0);
                if (intr_handle->intr_vec == NULL) {
                        hns3_err(hw, "Failed to allocate %d rx_queues"
-                                    " intr_vec", dev->data->nb_rx_queues);
+                                    " intr_vec", hw->used_rx_queues);
                        ret = -ENOMEM;
                        goto vf_alloc_intr_vec_error;
                }
@@ -1436,7 +1506,7 @@ hns3vf_map_rx_interrupt(struct rte_eth_dev *dev)
                base = RTE_INTR_VEC_RXTX_OFFSET;
        }
        if (rte_intr_dp_is_en(intr_handle)) {
-               for (q_id = 0; q_id < dev->data->nb_rx_queues; q_id++) {
+               for (q_id = 0; q_id < hw->used_rx_queues; q_id++) {
                        ret = hns3vf_bind_ring_with_vector(dev, vec, true,
                                                           q_id);
                        if (ret)
@@ -1466,7 +1536,7 @@ hns3vf_dev_start(struct rte_eth_dev *dev)
 {
        struct hns3_adapter *hns = dev->data->dev_private;
        struct hns3_hw *hw = &hns->hw;
-       int ret = 0;
+       int ret;
 
        PMD_INIT_FUNC_TRACE();
        if (rte_atomic16_read(&hw->reset.resetting))
@@ -1489,6 +1559,7 @@ hns3vf_dev_start(struct rte_eth_dev *dev)
        hns3_set_rxtx_function(dev);
        hns3_mp_req_start_rxtx(dev);
        rte_eal_alarm_set(HNS3VF_SERVICE_INTERVAL, hns3vf_service_handler, dev);
+
        return ret;
 }
 
@@ -1601,7 +1672,8 @@ hns3vf_stop_service(struct hns3_adapter *hns)
        struct rte_eth_dev *eth_dev;
 
        eth_dev = &rte_eth_devices[hw->data->port_id];
-       rte_eal_alarm_cancel(hns3vf_service_handler, eth_dev);
+       if (hw->adapter_state == HNS3_NIC_STARTED)
+               rte_eal_alarm_cancel(hns3vf_service_handler, eth_dev);
        hw->mac.link_status = ETH_LINK_DOWN;
 
        hns3_set_rxtx_function(eth_dev);
@@ -1639,8 +1711,50 @@ hns3vf_start_service(struct hns3_adapter *hns)
        eth_dev = &rte_eth_devices[hw->data->port_id];
        hns3_set_rxtx_function(eth_dev);
        hns3_mp_req_start_rxtx(eth_dev);
+       if (hw->adapter_state == HNS3_NIC_STARTED)
+               hns3vf_service_handler(eth_dev);
+
+       return 0;
+}
+
+static int
+hns3vf_check_default_mac_change(struct hns3_hw *hw)
+{
+       char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
+       struct rte_ether_addr *hw_mac;
+       int ret;
+
+       /*
+        * The hns3 PF ethdev driver in kernel support setting VF MAC address
+        * on the host by "ip link set ..." command. If the hns3 PF kernel
+        * ethdev driver sets the MAC address for VF device after the
+        * initialization of the related VF device, the PF driver will notify
+        * VF driver to reset VF device to make the new MAC address effective
+        * immediately. The hns3 VF PMD driver should check whether the MAC
+        * address has been changed by the PF kernel ethdev driver, if changed
+        * VF driver should configure hardware using the new MAC address in the
+        * recovering hardware configuration stage of the reset process.
+        */
+       ret = hns3vf_get_host_mac_addr(hw);
+       if (ret)
+               return ret;
+
+       hw_mac = (struct rte_ether_addr *)hw->mac.mac_addr;
+       ret = rte_is_zero_ether_addr(hw_mac);
+       if (ret) {
+               rte_ether_addr_copy(&hw->data->mac_addrs[0], hw_mac);
+       } else {
+               ret = rte_is_same_ether_addr(&hw->data->mac_addrs[0], hw_mac);
+               if (!ret) {
+                       rte_ether_addr_copy(hw_mac, &hw->data->mac_addrs[0]);
+                       rte_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE,
+                                             &hw->data->mac_addrs[0]);
+                       hns3_warn(hw, "Default MAC address has been changed to:"
+                                 " %s by the host PF kernel ethdev driver",
+                                 mac_str);
+               }
+       }
 
-       hns3vf_service_handler(eth_dev);
        return 0;
 }
 
@@ -1650,6 +1764,10 @@ hns3vf_restore_conf(struct hns3_adapter *hns)
        struct hns3_hw *hw = &hns->hw;
        int ret;
 
+       ret = hns3vf_check_default_mac_change(hw);
+       if (ret)
+               return ret;
+
        ret = hns3vf_configure_mac_addr(hns, false);
        if (ret)
                return ret;