From c7bca33e425a3b3739e2435b1f0e03d1ec96b0e6 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 9 Feb 2015 09:13:56 +0800 Subject: [PATCH] virtio: remove unnecessary adapter structure Cleanup virtio code by eliminating unnecessary nesting of virtio hardware structure inside adapter structure. Also allows removing unneeded macro, making code clearer. Signed-off-by: Stephen Hemminger Signed-off-by: Changchun Ouyang Acked-by: Huawei Xie --- lib/librte_pmd_virtio/virtio_ethdev.c | 43 ++++++++++----------------- lib/librte_pmd_virtio/virtio_ethdev.h | 9 ------ lib/librte_pmd_virtio/virtio_rxtx.c | 3 +- 3 files changed, 16 insertions(+), 39 deletions(-) diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c b/lib/librte_pmd_virtio/virtio_ethdev.c index b887e5416f..3110349a42 100644 --- a/lib/librte_pmd_virtio/virtio_ethdev.c +++ b/lib/librte_pmd_virtio/virtio_ethdev.c @@ -207,8 +207,7 @@ virtio_send_command(struct virtqueue *vq, struct virtio_pmd_ctrl *ctrl, static int virtio_set_multiple_queues(struct rte_eth_dev *dev, uint16_t nb_queues) { - struct virtio_hw *hw - = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; struct virtio_pmd_ctrl ctrl; int dlen[1]; int ret; @@ -242,8 +241,7 @@ int virtio_dev_queue_setup(struct rte_eth_dev *dev, const struct rte_memzone *mz; uint16_t vq_size; int size; - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; struct virtqueue *vq = NULL; /* Write the virtqueue index to the Queue Select Field */ @@ -383,8 +381,7 @@ virtio_dev_cq_queue_setup(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx, struct virtqueue *vq; uint16_t nb_desc = 0; int ret; - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; PMD_INIT_FUNC_TRACE(); ret = virtio_dev_queue_setup(dev, VTNET_CQ, VTNET_SQ_CQ_QUEUE_IDX, @@ -410,8 +407,7 @@ virtio_dev_close(struct rte_eth_dev *dev) static void virtio_dev_promiscuous_enable(struct rte_eth_dev *dev) { - struct virtio_hw *hw - = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; struct virtio_pmd_ctrl ctrl; int dlen[1]; int ret; @@ -430,8 +426,7 @@ virtio_dev_promiscuous_enable(struct rte_eth_dev *dev) static void virtio_dev_promiscuous_disable(struct rte_eth_dev *dev) { - struct virtio_hw *hw - = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; struct virtio_pmd_ctrl ctrl; int dlen[1]; int ret; @@ -450,8 +445,7 @@ virtio_dev_promiscuous_disable(struct rte_eth_dev *dev) static void virtio_dev_allmulticast_enable(struct rte_eth_dev *dev) { - struct virtio_hw *hw - = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; struct virtio_pmd_ctrl ctrl; int dlen[1]; int ret; @@ -470,8 +464,7 @@ virtio_dev_allmulticast_enable(struct rte_eth_dev *dev) static void virtio_dev_allmulticast_disable(struct rte_eth_dev *dev) { - struct virtio_hw *hw - = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; struct virtio_pmd_ctrl ctrl; int dlen[1]; int ret; @@ -853,8 +846,7 @@ virtio_interrupt_handler(__rte_unused struct rte_intr_handle *handle, void *param) { struct rte_eth_dev *dev = param; - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; uint8_t isr; /* Read interrupt status which clears interrupt */ @@ -880,12 +872,11 @@ static int eth_virtio_dev_init(__rte_unused struct eth_driver *eth_drv, struct rte_eth_dev *eth_dev) { + struct virtio_hw *hw = eth_dev->data->dev_private; struct virtio_net_config *config; struct virtio_net_config local_config; uint32_t offset_conf = sizeof(config->mac); struct rte_pci_device *pci_dev; - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private); RTE_BUILD_BUG_ON(RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr)); @@ -1006,7 +997,7 @@ static struct eth_driver rte_virtio_pmd = { .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC, }, .eth_dev_init = eth_virtio_dev_init, - .dev_private_size = sizeof(struct virtio_adapter), + .dev_private_size = sizeof(struct virtio_hw), }; /* @@ -1049,8 +1040,7 @@ static int virtio_dev_configure(struct rte_eth_dev *dev) { const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode; - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; int ret; PMD_INIT_LOG(DEBUG, "configure"); @@ -1072,8 +1062,7 @@ static int virtio_dev_start(struct rte_eth_dev *dev) { uint16_t nb_queues, i; - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; /* Tell the host we've noticed this device. */ vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_ACK); @@ -1179,8 +1168,7 @@ static void virtio_dev_free_mbufs(struct rte_eth_dev *dev) static void virtio_dev_stop(struct rte_eth_dev *dev) { - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; /* reset the NIC */ vtpci_irq_config(hw, 0); @@ -1193,8 +1181,7 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet { struct rte_eth_link link, old; uint16_t status; - struct virtio_hw *hw = - VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; memset(&link, 0, sizeof(link)); virtio_dev_atomic_read_link_status(dev, &link); old = link; @@ -1226,7 +1213,7 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet static void virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) { - struct virtio_hw *hw = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; dev_info->driver_name = dev->driver->pci_drv.name; dev_info->max_rx_queues = (uint16_t)hw->max_rx_queues; diff --git a/lib/librte_pmd_virtio/virtio_ethdev.h b/lib/librte_pmd_virtio/virtio_ethdev.h index 1da3c625d8..55c97498d4 100644 --- a/lib/librte_pmd_virtio/virtio_ethdev.h +++ b/lib/librte_pmd_virtio/virtio_ethdev.h @@ -110,15 +110,6 @@ uint16_t virtio_recv_mergeable_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t virtio_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); -/* - * Structure to store private data for each driver instance (for each port). - */ -struct virtio_adapter { - struct virtio_hw hw; -}; - -#define VIRTIO_DEV_PRIVATE_TO_HW(adapter)\ - (&((struct virtio_adapter *)adapter)->hw) /* * The VIRTIO_NET_F_GUEST_TSO[46] features permit the host to send us diff --git a/lib/librte_pmd_virtio/virtio_rxtx.c b/lib/librte_pmd_virtio/virtio_rxtx.c index 1db1dd8d95..5e660c1666 100644 --- a/lib/librte_pmd_virtio/virtio_rxtx.c +++ b/lib/librte_pmd_virtio/virtio_rxtx.c @@ -325,8 +325,7 @@ virtio_dev_vring_start(struct virtqueue *vq, int queue_type) void virtio_dev_cq_start(struct rte_eth_dev *dev) { - struct virtio_hw *hw - = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct virtio_hw *hw = dev->data->dev_private; if (hw->cvq) { virtio_dev_vring_start(hw->cvq, VTNET_CQ); -- 2.20.1