net/e1000: localize mapping of ethdev to PCI device
authorStephen Hemminger <stephen@networkplumber.org>
Fri, 23 Dec 2016 15:57:56 +0000 (16:57 +0100)
committerThomas Monjalon <thomas.monjalon@6wind.com>
Sat, 24 Dec 2016 17:54:33 +0000 (18:54 +0100)
Create one macro for where PCI device information is extracted
from ethernet device. Makes later changes easier to review, and test.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jan Blunck <jblunck@infradead.org>
drivers/net/e1000/e1000_ethdev.h
drivers/net/e1000/em_ethdev.c
drivers/net/e1000/igb_ethdev.c
drivers/net/e1000/igb_pf.c

index 6c25c8d..134f8b9 100644 (file)
@@ -286,6 +286,8 @@ struct e1000_adapter {
 #define E1000_DEV_PRIVATE_TO_FILTER_INFO(adapter) \
        (&((struct e1000_adapter *)adapter)->filter)
 
+#define E1000_DEV_TO_PCI(eth_dev) \
+       (eth_dev->pci_dev)
 /*
  * RX/TX IGB function prototypes
  */
index 866a5cf..7a70bde 100644 (file)
@@ -83,7 +83,8 @@ static int eth_em_flow_ctrl_set(struct rte_eth_dev *dev,
 static int eth_em_interrupt_setup(struct rte_eth_dev *dev);
 static int eth_em_rxq_interrupt_setup(struct rte_eth_dev *dev);
 static int eth_em_interrupt_get_status(struct rte_eth_dev *dev);
-static int eth_em_interrupt_action(struct rte_eth_dev *dev);
+static int eth_em_interrupt_action(struct rte_eth_dev *dev,
+                                  struct rte_intr_handle *handle);
 static void eth_em_interrupt_handler(struct rte_intr_handle *handle,
                                                        void *param);
 
@@ -287,7 +288,8 @@ eth_em_dev_is_ich8(struct e1000_hw *hw)
 static int
 eth_em_dev_init(struct rte_eth_dev *eth_dev)
 {
-       struct rte_pci_device *pci_dev;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(eth_dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(eth_dev->data->dev_private);
        struct e1000_hw *hw =
@@ -295,8 +297,6 @@ eth_em_dev_init(struct rte_eth_dev *eth_dev)
        struct e1000_vfta * shadow_vfta =
                E1000_DEV_PRIVATE_TO_VFTA(eth_dev->data->dev_private);
 
-       pci_dev = eth_dev->pci_dev;
-
        eth_dev->dev_ops = &eth_em_ops;
        eth_dev->rx_pkt_burst = (eth_rx_burst_t)&eth_em_recv_pkts;
        eth_dev->tx_pkt_burst = (eth_tx_burst_t)&eth_em_xmit_pkts;
@@ -351,8 +351,8 @@ eth_em_dev_init(struct rte_eth_dev *eth_dev)
                     eth_dev->data->port_id, pci_dev->id.vendor_id,
                     pci_dev->id.device_id);
 
-       rte_intr_callback_register(&(pci_dev->intr_handle),
-               eth_em_interrupt_handler, (void *)eth_dev);
+       rte_intr_callback_register(intr_handle,
+                                  eth_em_interrupt_handler, eth_dev);
 
        return 0;
 }
@@ -360,17 +360,16 @@ eth_em_dev_init(struct rte_eth_dev *eth_dev)
 static int
 eth_em_dev_uninit(struct rte_eth_dev *eth_dev)
 {
-       struct rte_pci_device *pci_dev;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(eth_dev);
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(eth_dev->data->dev_private);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 
        PMD_INIT_FUNC_TRACE();
 
        if (rte_eal_process_type() != RTE_PROC_PRIMARY)
                return -EPERM;
 
-       pci_dev = eth_dev->pci_dev;
-
        if (adapter->stopped == 0)
                eth_em_close(eth_dev);
 
@@ -382,9 +381,9 @@ eth_em_dev_uninit(struct rte_eth_dev *eth_dev)
        eth_dev->data->mac_addrs = NULL;
 
        /* disable uio intr before callback unregister */
-       rte_intr_disable(&(pci_dev->intr_handle));
-       rte_intr_callback_unregister(&(pci_dev->intr_handle),
-               eth_em_interrupt_handler, (void *)eth_dev);
+       rte_intr_disable(intr_handle);
+       rte_intr_callback_unregister(intr_handle,
+                                    eth_em_interrupt_handler, eth_dev);
 
        return 0;
 }
@@ -556,7 +555,9 @@ eth_em_start(struct rte_eth_dev *dev)
                E1000_DEV_PRIVATE(dev->data->dev_private);
        struct e1000_hw *hw =
                E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+       struct rte_pci_device *pci_dev =
+               E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        int ret, mask;
        uint32_t intr_vector = 0;
        uint32_t *speeds;
@@ -738,7 +739,8 @@ eth_em_stop(struct rte_eth_dev *dev)
 {
        struct rte_eth_link link;
        struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 
        em_rxq_intr_disable(hw);
        em_lsc_intr_disable(hw);
@@ -999,9 +1001,11 @@ static int
 eth_em_rx_queue_intr_enable(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id)
 {
        struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 
        em_rxq_intr_enable(hw);
-       rte_intr_enable(&dev->pci_dev->intr_handle);
+       rte_intr_enable(intr_handle);
 
        return 0;
 }
@@ -1536,8 +1540,10 @@ eth_em_interrupt_get_status(struct rte_eth_dev *dev)
  *  - On failure, a negative value.
  */
 static int
-eth_em_interrupt_action(struct rte_eth_dev *dev)
+eth_em_interrupt_action(struct rte_eth_dev *dev,
+                       struct rte_intr_handle *intr_handle)
 {
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
        struct e1000_hw *hw =
                E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        struct e1000_interrupt *intr =
@@ -1550,7 +1556,7 @@ eth_em_interrupt_action(struct rte_eth_dev *dev)
                return -1;
 
        intr->flags &= ~E1000_FLAG_NEED_LINK_UPDATE;
-       rte_intr_enable(&(dev->pci_dev->intr_handle));
+       rte_intr_enable(intr_handle);
 
        /* set get_link_status to check register later */
        hw->mac.get_link_status = 1;
@@ -1571,8 +1577,8 @@ eth_em_interrupt_action(struct rte_eth_dev *dev)
                PMD_INIT_LOG(INFO, " Port %d: Link Down", dev->data->port_id);
        }
        PMD_INIT_LOG(DEBUG, "PCI Address: %04d:%02d:%02d:%d",
-                    dev->pci_dev->addr.domain, dev->pci_dev->addr.bus,
-                    dev->pci_dev->addr.devid, dev->pci_dev->addr.function);
+                    pci_dev->addr.domain, pci_dev->addr.bus,
+                    pci_dev->addr.devid, pci_dev->addr.function);
 
        tctl = E1000_READ_REG(hw, E1000_TCTL);
        rctl = E1000_READ_REG(hw, E1000_RCTL);
@@ -1604,13 +1610,13 @@ eth_em_interrupt_action(struct rte_eth_dev *dev)
  *  void
  */
 static void
-eth_em_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
-                                                       void *param)
+eth_em_interrupt_handler(struct rte_intr_handle *handle,
+                        void *param)
 {
        struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
        eth_em_interrupt_get_status(dev);
-       eth_em_interrupt_action(dev);
+       eth_em_interrupt_action(dev, handle);
        _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
 }
 
index 08f2a68..352ef94 100644 (file)
@@ -132,7 +132,8 @@ static int  eth_igb_flow_ctrl_set(struct rte_eth_dev *dev,
 static int eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev);
 static int eth_igb_rxq_interrupt_setup(struct rte_eth_dev *dev);
 static int eth_igb_interrupt_get_status(struct rte_eth_dev *dev);
-static int eth_igb_interrupt_action(struct rte_eth_dev *dev);
+static int eth_igb_interrupt_action(struct rte_eth_dev *dev,
+                                   struct rte_intr_handle *handle);
 static void eth_igb_interrupt_handler(struct rte_intr_handle *handle,
                                                        void *param);
 static int  igb_hardware_init(struct e1000_hw *hw);
@@ -668,15 +669,16 @@ igb_pf_reset_hw(struct e1000_hw *hw)
 }
 
 static void
-igb_identify_hardware(struct rte_eth_dev *dev)
+igb_identify_hardware(struct rte_eth_dev *dev, struct rte_pci_device *pci_dev)
 {
        struct e1000_hw *hw =
                E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 
-       hw->vendor_id = dev->pci_dev->id.vendor_id;
-       hw->device_id = dev->pci_dev->id.device_id;
-       hw->subsystem_vendor_id = dev->pci_dev->id.subsystem_vendor_id;
-       hw->subsystem_device_id = dev->pci_dev->id.subsystem_device_id;
+
+       hw->vendor_id = pci_dev->id.vendor_id;
+       hw->device_id = pci_dev->id.device_id;
+       hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
+       hw->subsystem_device_id = pci_dev->id.subsystem_device_id;
 
        e1000_set_mac_type(hw);
 
@@ -743,7 +745,7 @@ static int
 eth_igb_dev_init(struct rte_eth_dev *eth_dev)
 {
        int error = 0;
-       struct rte_pci_device *pci_dev;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(eth_dev);
        struct e1000_hw *hw =
                E1000_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
        struct e1000_vfta * shadow_vfta =
@@ -755,8 +757,6 @@ eth_igb_dev_init(struct rte_eth_dev *eth_dev)
 
        uint32_t ctrl_ext;
 
-       pci_dev = eth_dev->pci_dev;
-
        eth_dev->dev_ops = &eth_igb_ops;
        eth_dev->rx_pkt_burst = &eth_igb_recv_pkts;
        eth_dev->tx_pkt_burst = &eth_igb_xmit_pkts;
@@ -774,7 +774,7 @@ eth_igb_dev_init(struct rte_eth_dev *eth_dev)
 
        hw->hw_addr= (void *)pci_dev->mem_resource[0].addr;
 
-       igb_identify_hardware(eth_dev);
+       igb_identify_hardware(eth_dev, pci_dev);
        if (e1000_setup_init_funcs(hw, FALSE) != E1000_SUCCESS) {
                error = -EIO;
                goto err_late;
@@ -908,6 +908,7 @@ static int
 eth_igb_dev_uninit(struct rte_eth_dev *eth_dev)
 {
        struct rte_pci_device *pci_dev;
+       struct rte_intr_handle *intr_handle;
        struct e1000_hw *hw;
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(eth_dev->data->dev_private);
@@ -918,7 +919,8 @@ eth_igb_dev_uninit(struct rte_eth_dev *eth_dev)
                return -EPERM;
 
        hw = E1000_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
-       pci_dev = eth_dev->pci_dev;
+       pci_dev = E1000_DEV_TO_PCI(eth_dev);
+       intr_handle = &pci_dev->intr_handle;
 
        if (adapter->stopped == 0)
                eth_igb_close(eth_dev);
@@ -937,9 +939,9 @@ eth_igb_dev_uninit(struct rte_eth_dev *eth_dev)
        igb_pf_host_uninit(eth_dev);
 
        /* disable uio intr before callback unregister */
-       rte_intr_disable(&(pci_dev->intr_handle));
-       rte_intr_callback_unregister(&(pci_dev->intr_handle),
-               eth_igb_interrupt_handler, (void *)eth_dev);
+       rte_intr_disable(intr_handle);
+       rte_intr_callback_unregister(intr_handle,
+                                    eth_igb_interrupt_handler, eth_dev);
 
        return 0;
 }
@@ -951,6 +953,7 @@ static int
 eth_igbvf_dev_init(struct rte_eth_dev *eth_dev)
 {
        struct rte_pci_device *pci_dev;
+       struct rte_intr_handle *intr_handle;
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(eth_dev->data->dev_private);
        struct e1000_hw *hw =
@@ -973,8 +976,7 @@ eth_igbvf_dev_init(struct rte_eth_dev *eth_dev)
                return 0;
        }
 
-       pci_dev = eth_dev->pci_dev;
-
+       pci_dev = E1000_DEV_TO_PCI(eth_dev);
        rte_eth_copy_pci_info(eth_dev, pci_dev);
 
        hw->device_id = pci_dev->id.device_id;
@@ -1038,9 +1040,9 @@ eth_igbvf_dev_init(struct rte_eth_dev *eth_dev)
                     eth_dev->data->port_id, pci_dev->id.vendor_id,
                     pci_dev->id.device_id, "igb_mac_82576_vf");
 
-       rte_intr_callback_register(&pci_dev->intr_handle,
-                                  eth_igbvf_interrupt_handler,
-                                  (void *)eth_dev);
+       intr_handle = &pci_dev->intr_handle;
+       rte_intr_callback_register(intr_handle,
+                                  eth_igbvf_interrupt_handler, eth_dev);
 
        return 0;
 }
@@ -1050,7 +1052,7 @@ eth_igbvf_dev_uninit(struct rte_eth_dev *eth_dev)
 {
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(eth_dev->data->dev_private);
-       struct rte_pci_device *pci_dev = eth_dev->pci_dev;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(eth_dev);
 
        PMD_INIT_FUNC_TRACE();
 
@@ -1217,7 +1219,8 @@ eth_igb_start(struct rte_eth_dev *dev)
                E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(dev->data->dev_private);
-       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        int ret, mask;
        uint32_t intr_vector = 0;
        uint32_t ctrl_ext;
@@ -1425,11 +1428,12 @@ eth_igb_stop(struct rte_eth_dev *dev)
        struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        struct e1000_filter_info *filter_info =
                E1000_DEV_PRIVATE_TO_FILTER_INFO(dev->data->dev_private);
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
        struct rte_eth_link link;
        struct e1000_flex_filter *p_flex;
        struct e1000_5tuple_filter *p_5tuple, *p_5tuple_next;
        struct e1000_2tuple_filter *p_2tuple, *p_2tuple_next;
-       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 
        igb_intr_disable(hw);
 
@@ -1529,7 +1533,8 @@ eth_igb_close(struct rte_eth_dev *dev)
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(dev->data->dev_private);
        struct rte_eth_link link;
-       struct rte_pci_device *pci_dev;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 
        eth_igb_stop(dev);
        adapter->stopped = 1;
@@ -1549,10 +1554,9 @@ eth_igb_close(struct rte_eth_dev *dev)
 
        igb_dev_free_queues(dev);
 
-       pci_dev = dev->pci_dev;
-       if (pci_dev->intr_handle.intr_vec) {
-               rte_free(pci_dev->intr_handle.intr_vec);
-               pci_dev->intr_handle.intr_vec = NULL;
+       if (intr_handle->intr_vec) {
+               rte_free(intr_handle->intr_vec);
+               intr_handle->intr_vec = NULL;
        }
 
        memset(&link, 0, sizeof(link));
@@ -2633,12 +2637,14 @@ eth_igb_interrupt_get_status(struct rte_eth_dev *dev)
  *  - On failure, a negative value.
  */
 static int
-eth_igb_interrupt_action(struct rte_eth_dev *dev)
+eth_igb_interrupt_action(struct rte_eth_dev *dev,
+                        struct rte_intr_handle *intr_handle)
 {
        struct e1000_hw *hw =
                E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        struct e1000_interrupt *intr =
                E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
        uint32_t tctl, rctl;
        struct rte_eth_link link;
        int ret;
@@ -2649,7 +2655,7 @@ eth_igb_interrupt_action(struct rte_eth_dev *dev)
        }
 
        igb_intr_enable(dev);
-       rte_intr_enable(&(dev->pci_dev->intr_handle));
+       rte_intr_enable(intr_handle);
 
        if (intr->flags & E1000_FLAG_NEED_LINK_UPDATE) {
                intr->flags &= ~E1000_FLAG_NEED_LINK_UPDATE;
@@ -2677,10 +2683,10 @@ eth_igb_interrupt_action(struct rte_eth_dev *dev)
                }
 
                PMD_INIT_LOG(DEBUG, "PCI Address: %04d:%02d:%02d:%d",
-                            dev->pci_dev->addr.domain,
-                            dev->pci_dev->addr.bus,
-                            dev->pci_dev->addr.devid,
-                            dev->pci_dev->addr.function);
+                            pci_dev->addr.domain,
+                            pci_dev->addr.bus,
+                            pci_dev->addr.devid,
+                            pci_dev->addr.function);
                tctl = E1000_READ_REG(hw, E1000_TCTL);
                rctl = E1000_READ_REG(hw, E1000_RCTL);
                if (link.link_status) {
@@ -2713,13 +2719,12 @@ eth_igb_interrupt_action(struct rte_eth_dev *dev)
  *  void
  */
 static void
-eth_igb_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
-                                                       void *param)
+eth_igb_interrupt_handler(struct rte_intr_handle *handle, void *param)
 {
        struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
        eth_igb_interrupt_get_status(dev);
-       eth_igb_interrupt_action(dev);
+       eth_igb_interrupt_action(dev, handle);
 }
 
 static int
@@ -2759,7 +2764,7 @@ void igbvf_mbx_process(struct rte_eth_dev *dev)
 }
 
 static int
-eth_igbvf_interrupt_action(struct rte_eth_dev *dev)
+eth_igbvf_interrupt_action(struct rte_eth_dev *dev, struct rte_intr_handle *intr_handle)
 {
        struct e1000_interrupt *intr =
                E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
@@ -2770,19 +2775,19 @@ eth_igbvf_interrupt_action(struct rte_eth_dev *dev)
        }
 
        igbvf_intr_enable(dev);
-       rte_intr_enable(&dev->pci_dev->intr_handle);
+       rte_intr_enable(intr_handle);
 
        return 0;
 }
 
 static void
-eth_igbvf_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
+eth_igbvf_interrupt_handler(struct rte_intr_handle *handle,
                            void *param)
 {
        struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
        eth_igbvf_interrupt_get_status(dev);
-       eth_igbvf_interrupt_action(dev);
+       eth_igbvf_interrupt_action(dev, handle);
 }
 
 static int
@@ -3055,8 +3060,9 @@ igbvf_dev_start(struct rte_eth_dev *dev)
                E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        struct e1000_adapter *adapter =
                E1000_DEV_PRIVATE(dev->data->dev_private);
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        int ret;
-       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
        uint32_t intr_vector = 0;
 
        PMD_INIT_FUNC_TRACE();
@@ -3110,7 +3116,8 @@ igbvf_dev_start(struct rte_eth_dev *dev)
 static void
 igbvf_dev_stop(struct rte_eth_dev *dev)
 {
-       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 
        PMD_INIT_FUNC_TRACE();
 
@@ -5095,6 +5102,8 @@ eth_igb_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
 {
        struct e1000_hw *hw =
                E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        uint32_t mask = 1 << queue_id;
        uint32_t regval;
 
@@ -5102,7 +5111,7 @@ eth_igb_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
        E1000_WRITE_REG(hw, E1000_EIMS, regval | mask);
        E1000_WRITE_FLUSH(hw);
 
-       rte_intr_enable(&dev->pci_dev->intr_handle);
+       rte_intr_enable(intr_handle);
 
        return 0;
 }
@@ -5166,8 +5175,8 @@ eth_igb_configure_msix_intr(struct rte_eth_dev *dev)
        uint32_t vec = E1000_MISC_VEC_ID;
        uint32_t base = E1000_MISC_VEC_ID;
        uint32_t misc_shift = 0;
-
-       struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(dev);
+       struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 
        /* won't configure msix register if no mapping is done
         * between intr vector and event fd
index 5845bc2..67da3c2 100644 (file)
@@ -57,7 +57,9 @@
 static inline uint16_t
 dev_num_vf(struct rte_eth_dev *eth_dev)
 {
-       return eth_dev->pci_dev->max_vfs;
+       struct rte_pci_device *pci_dev = E1000_DEV_TO_PCI(eth_dev);
+
+       return pci_dev->max_vfs;
 }
 
 static inline