On 6/9/2015 12:01 AM, Bernard Iremonger wrote:
> This patch depends on the Port Hotplug Framework.
> It implements the eth_dev_uninit functions for rte_ixgbe_pmd and
> rte_ixgbevf_pmd.
>
> Changes in V4:
> Release rx and tx queues in dev_uninit() functions.
> Replace TRUE and FALSE with 1 and 0.
>
> Changes in V3:
> Rebased to use drivers/net/ixgbe directory.
>
> Changes in V2:
> Added call to dev_close() in dev_uninit() functions.
> Removed input parameter checks from dev_uninit() functions.
>
> Signed-off-by: Bernard Iremonger <bernard.iremonger at intel.com>
Acked-by: Michael Qiu <michael.qiu at intel.com>
> ---
> drivers/net/ixgbe/ixgbe_ethdev.c | 107
> ++++++++++++++++++++++++++++++++++++--
> drivers/net/ixgbe/ixgbe_ethdev.h | 2 +
> drivers/net/ixgbe/ixgbe_pf.c | 22 ++++++++
> 3 files changed, 126 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index 0d9f9b2..7f9d286 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -117,6 +117,7 @@
> #define IXGBE_QUEUE_STAT_COUNTERS (sizeof(hw_stats->qprc) /
> sizeof(hw_stats->qprc[0]))
>
> static int eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev);
> +static int eth_ixgbe_dev_uninit(struct rte_eth_dev *eth_dev);
> static int ixgbe_dev_configure(struct rte_eth_dev *dev);
> static int ixgbe_dev_start(struct rte_eth_dev *dev);
> static void ixgbe_dev_stop(struct rte_eth_dev *dev);
> @@ -183,6 +184,7 @@ static void ixgbe_dcb_init(struct ixgbe_hw *hw,struct
> ixgbe_dcb_config *dcb_conf
>
> /* For Virtual Function support */
> static int eth_ixgbevf_dev_init(struct rte_eth_dev *eth_dev);
> +static int eth_ixgbevf_dev_uninit(struct rte_eth_dev *eth_dev);
> static int ixgbevf_dev_configure(struct rte_eth_dev *dev);
> static int ixgbevf_dev_start(struct rte_eth_dev *dev);
> static void ixgbevf_dev_stop(struct rte_eth_dev *dev);
> @@ -916,6 +918,57 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev)
> return 0;
> }
>
> +static int
> +eth_ixgbe_dev_uninit(struct rte_eth_dev *eth_dev)
> +{
> + struct rte_pci_device *pci_dev;
> + struct ixgbe_hw *hw;
> + unsigned i;
> +
> + PMD_INIT_FUNC_TRACE();
> +
> + if (rte_eal_process_type() != RTE_PROC_PRIMARY)
> + return -EPERM;
> +
> + hw = IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
> + pci_dev = eth_dev->pci_dev;
> +
> + if (hw->adapter_stopped == 0)
> + ixgbe_dev_close(eth_dev);
> +
> + eth_dev->dev_ops = NULL;
> + eth_dev->rx_pkt_burst = NULL;
> + eth_dev->tx_pkt_burst = NULL;
> +
> + /* Unlock any pending hardware semaphore */
> + ixgbe_swfw_lock_reset(hw);
> +
> + /* disable uio intr before callback unregister */
> + rte_intr_disable(&(pci_dev->intr_handle));
> + rte_intr_callback_unregister(&(pci_dev->intr_handle),
> + ixgbe_dev_interrupt_handler, (void *)eth_dev);
> +
> + /* uninitialize PF if max_vfs not zero */
> + ixgbe_pf_host_uninit(eth_dev);
> +
> + for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
> + ixgbe_dev_rx_queue_release(eth_dev->data->rx_queues[i]);
> + eth_dev->data->rx_queues[i] = NULL;
> + }
> +
> + for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
> + ixgbe_dev_tx_queue_release(eth_dev->data->tx_queues[i]);
> + eth_dev->data->tx_queues[i] = NULL;
> + }
> +
> + rte_free(eth_dev->data->mac_addrs);
> + eth_dev->data->mac_addrs = NULL;
> +
> + rte_free(eth_dev->data->hash_mac_addrs);
> + eth_dev->data->hash_mac_addrs = NULL;
> +
> + return 0;
> +}
>
> /*
> * Negotiate mailbox API version with the PF.
> @@ -1086,13 +1139,56 @@ eth_ixgbevf_dev_init(struct rte_eth_dev *eth_dev)
> return 0;
> }
>
> +/* Virtual Function device uninit */
> +
> +static int
> +eth_ixgbevf_dev_uninit(struct rte_eth_dev *eth_dev)
> +{
> + struct ixgbe_hw *hw;
> + unsigned i;
> +
> + PMD_INIT_FUNC_TRACE();
> +
> + if (rte_eal_process_type() != RTE_PROC_PRIMARY)
> + return -EPERM;
> +
> + hw = IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
> +
> + if (hw->adapter_stopped == 0)
> + ixgbevf_dev_close(eth_dev);
> +
> + eth_dev->dev_ops = NULL;
> + eth_dev->rx_pkt_burst = NULL;
> + eth_dev->tx_pkt_burst = NULL;
> +
> + /* Disable the interrupts for VF */
> + ixgbevf_intr_disable(hw);
> +
> + for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
> + ixgbe_dev_rx_queue_release(eth_dev->data->rx_queues[i]);
> + eth_dev->data->rx_queues[i] = NULL;
> + }
> +
> + for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
> + ixgbe_dev_tx_queue_release(eth_dev->data->tx_queues[i]);
> + eth_dev->data->tx_queues[i] = NULL;
> + }
> +
> + rte_free(eth_dev->data->mac_addrs);
> + eth_dev->data->mac_addrs = NULL;
> +
> + return 0;
> +}
> +
> static struct eth_driver rte_ixgbe_pmd = {
> {
> .name = "rte_ixgbe_pmd",
> .id_table = pci_id_ixgbe_map,
> - .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
> + .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
> + RTE_PCI_DRV_DETACHABLE,
> },
> .eth_dev_init = eth_ixgbe_dev_init,
> + .eth_dev_uninit = eth_ixgbe_dev_uninit,
> .dev_private_size = sizeof(struct ixgbe_adapter),
> };
>
> @@ -1103,9 +1199,10 @@ static struct eth_driver rte_ixgbevf_pmd = {
> {
> .name = "rte_ixgbevf_pmd",
> .id_table = pci_id_ixgbevf_map,
> - .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
> + .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_DETACHABLE,
> },
> .eth_dev_init = eth_ixgbevf_dev_init,
> + .eth_dev_uninit = eth_ixgbevf_dev_uninit,
> .dev_private_size = sizeof(struct ixgbe_adapter),
> };
>
> @@ -1475,7 +1572,7 @@ ixgbe_dev_start(struct rte_eth_dev *dev)
> }
>
> /* stop adapter */
> - hw->adapter_stopped = FALSE;
> + hw->adapter_stopped = 0;
> ixgbe_stop_adapter(hw);
>
> /* reinitialize adapter
> @@ -1628,7 +1725,7 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
>
> /* reset the NIC */
> ixgbe_pf_reset_hw(hw);
> - hw->adapter_stopped = FALSE;
> + hw->adapter_stopped = 0;
>
> /* stop adapter */
> ixgbe_stop_adapter(hw);
> @@ -3015,7 +3112,7 @@ ixgbevf_dev_stop(struct rte_eth_dev *dev)
>
> PMD_INIT_FUNC_TRACE();
>
> - hw->adapter_stopped = TRUE;
> + hw->adapter_stopped = 1;
> ixgbe_stop_adapter(hw);
>
> /*
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h
> b/drivers/net/ixgbe/ixgbe_ethdev.h
> index 19237b8..710ee87 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.h
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.h
> @@ -389,6 +389,8 @@ void ixgbe_vlan_hw_strip_disable_all(struct rte_eth_dev
> *dev);
>
> void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
>
> +void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev);
> +
> void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev);
>
> int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev);
> diff --git a/drivers/net/ixgbe/ixgbe_pf.c b/drivers/net/ixgbe/ixgbe_pf.c
> index caed137..fd1c4ca 100644
> --- a/drivers/net/ixgbe/ixgbe_pf.c
> +++ b/drivers/net/ixgbe/ixgbe_pf.c
> @@ -144,6 +144,28 @@ void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
> return;
> }
>
> +void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev)
> +{
> + struct ixgbe_vf_info **vfinfo;
> + uint16_t vf_num;
> +
> + PMD_INIT_FUNC_TRACE();
> +
> + vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
> +
> + RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
> + RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = 0;
> + RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = 0;
> + RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = 0;
> +
> + vf_num = dev_num_vf(eth_dev);
> + if (vf_num == 0)
> + return;
> +
> + rte_free(*vfinfo);
> + *vfinfo = NULL;
> +}
> +
> int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
> {
> uint32_t vtctl, fcrth;
