fm10k: support port hotplug

Add hotplug support for fm10k.

Signed-off-by: Michael Qiu <michael.qiu@intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index 2f9dc3e..2deec31 100644 (file)
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1707,6 +1707,36 @@ fm10k_dev_enable_intr_pf(struct rte_eth_dev *dev)
        FM10K_WRITE_FLUSH(hw);
 }
 
+static void
+fm10k_dev_disable_intr_pf(struct rte_eth_dev *dev)
+{
+       struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       uint32_t int_map = FM10K_INT_MAP_DISABLE;
+
+       int_map |= 0;
+
+       FM10K_WRITE_REG(hw, FM10K_INT_MAP(fm10k_int_Mailbox), int_map);
+       FM10K_WRITE_REG(hw, FM10K_INT_MAP(fm10k_int_PCIeFault), int_map);
+       FM10K_WRITE_REG(hw, FM10K_INT_MAP(fm10k_int_SwitchUpDown), int_map);
+       FM10K_WRITE_REG(hw, FM10K_INT_MAP(fm10k_int_SwitchEvent), int_map);
+       FM10K_WRITE_REG(hw, FM10K_INT_MAP(fm10k_int_SRAM), int_map);
+       FM10K_WRITE_REG(hw, FM10K_INT_MAP(fm10k_int_VFLR), int_map);
+
+       /* Disable misc causes */
+       FM10K_WRITE_REG(hw, FM10K_EIMR, FM10K_EIMR_DISABLE(PCA_FAULT) |
+                               FM10K_EIMR_DISABLE(THI_FAULT) |
+                               FM10K_EIMR_DISABLE(FUM_FAULT) |
+                               FM10K_EIMR_DISABLE(MAILBOX) |
+                               FM10K_EIMR_DISABLE(SWITCHREADY) |
+                               FM10K_EIMR_DISABLE(SWITCHNOTREADY) |
+                               FM10K_EIMR_DISABLE(SRAMERROR) |
+                               FM10K_EIMR_DISABLE(VFLR));
+
+       /* Disable ITR 0 */
+       FM10K_WRITE_REG(hw, FM10K_ITR(0), FM10K_ITR_MASK_SET);
+       FM10K_WRITE_FLUSH(hw);
+}
+
 static void
 fm10k_dev_enable_intr_vf(struct rte_eth_dev *dev)
 {
@@ -1725,6 +1755,22 @@ fm10k_dev_enable_intr_vf(struct rte_eth_dev *dev)
        FM10K_WRITE_FLUSH(hw);
 }
 
+static void
+fm10k_dev_disable_intr_vf(struct rte_eth_dev *dev)
+{
+       struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       uint32_t int_map = FM10K_INT_MAP_DISABLE;
+
+       int_map |= 0;
+
+       /* Only INT 0 available, other 15 are reserved. */
+       FM10K_WRITE_REG(hw, FM10K_VFINT_MAP, int_map);
+
+       /* Disable ITR 0 */
+       FM10K_WRITE_REG(hw, FM10K_VFITR(0), FM10K_ITR_MASK_SET);
+       FM10K_WRITE_FLUSH(hw);
+}
+
 static int
 fm10k_dev_handle_fault(struct fm10k_hw *hw, uint32_t eicr)
 {
@@ -2177,6 +2223,54 @@ eth_fm10k_dev_init(struct rte_eth_dev *dev)
        return 0;
 }
 
+static int
+eth_fm10k_dev_uninit(struct rte_eth_dev *dev)
+{
+       struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       PMD_INIT_FUNC_TRACE();
+
+       /* only uninitialize in the primary process */
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+               return 0;
+
+       /* safe to close dev here */
+       fm10k_dev_close(dev);
+
+       dev->dev_ops = NULL;
+       dev->rx_pkt_burst = NULL;
+       dev->tx_pkt_burst = NULL;
+
+       /* disable uio/vfio intr */
+       rte_intr_disable(&(dev->pci_dev->intr_handle));
+
+       /*PF/VF has different interrupt handling mechanism */
+       if (hw->mac.type == fm10k_mac_pf) {
+               /* disable interrupt */
+               fm10k_dev_disable_intr_pf(dev);
+
+               /* unregister callback func to eal lib */
+               rte_intr_callback_unregister(&(dev->pci_dev->intr_handle),
+                       fm10k_dev_interrupt_handler_pf, (void *)dev);
+       } else {
+               /* disable interrupt */
+               fm10k_dev_disable_intr_vf(dev);
+
+               rte_intr_callback_unregister(&(dev->pci_dev->intr_handle),
+                       fm10k_dev_interrupt_handler_vf, (void *)dev);
+       }
+
+       /* free mac memory */
+       if (dev->data->mac_addrs) {
+               rte_free(dev->data->mac_addrs);
+               dev->data->mac_addrs = NULL;
+       }
+
+       memset(hw, 0, sizeof(*hw));
+
+       return 0;
+}
+
 /*
  * The set of PCI devices this driver supports. This driver will enable both PF
  * and SRIOV-VF devices.
@@ -2192,9 +2286,10 @@ static struct eth_driver rte_pmd_fm10k = {
        .pci_drv = {
                .name = "rte_pmd_fm10k",
                .id_table = pci_id_fm10k_map,
-               .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+               .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_DETACHABLE,
        },
        .eth_dev_init = eth_fm10k_dev_init,
+       .eth_dev_uninit = eth_fm10k_dev_uninit,
        .dev_private_size = sizeof(struct fm10k_adapter),
 };