Re: [dpdk-dev] [PATCH 2/2] net: align ethdev and eal driver names

[Ferruh Yigit <ferruh.yigit@intel.com>]

On 11/10/2016 1:51 PM, David Marchand wrote:
> Some virtual pmds report a different name than the vdev driver name
> registered in eal.
> While it does not hurt, let's try to be consistent.
> 
> Signed-off-by: David Marchand <david.marchand@6wind.com>
> ---

Since you did all the work, instead of second patch what do you think
doing something like [1] (basically adding eth_dev->rte_driver link) and
when done for all vdevs, remove eth_dev->data->drv_name completely?


[1]
diff --git a/drivers/net/null/rte_eth_null.c
b/drivers/net/null/rte_eth_null.c
index e4fd68f..d657133 100644
--- a/drivers/net/null/rte_eth_null.c
+++ b/drivers/net/null/rte_eth_null.c
@@ -553,9 +553,9 @@ eth_dev_null_create(const char *name,
        TAILQ_INIT(&eth_dev->link_intr_cbs);

        eth_dev->driver = NULL;
+       eth_dev->rte_driver = &pmd_null_drv.driver;
        data->dev_flags = RTE_ETH_DEV_DETACHABLE;
        data->kdrv = RTE_KDRV_NONE;
-       data->drv_name = pmd_null_drv.driver.name;
        data->numa_node = numa_node;

        /* finally assign rx and tx ops */
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index fde8112..0527c4a 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -259,6 +259,7 @@ rte_eth_dev_pci_probe(struct rte_pci_driver *pci_drv,
        }
        eth_dev->pci_dev = pci_dev;
        eth_dev->driver = eth_drv;
+       eth_dev->rte_driver = pci_drv->driver.name;
        eth_dev->data->rx_mbuf_alloc_failed = 0;

        /* init user callbacks */
@@ -1557,7 +1558,7 @@ rte_eth_dev_info_get(uint8_t port_id, struct
rte_eth_dev_info *dev_info)
        RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
        (*dev->dev_ops->dev_infos_get)(dev, dev_info);
        dev_info->pci_dev = dev->pci_dev;
-       dev_info->driver_name = dev->data->drv_name;
+       dev_info->driver_name = dev->rte_driver->name;
        dev_info->nb_rx_queues = dev->data->nb_rx_queues;
        dev_info->nb_tx_queues = dev->data->nb_tx_queues;
 }
@@ -3214,7 +3215,6 @@ rte_eth_copy_pci_info(struct rte_eth_dev *eth_dev,
struct rte_pci_device *pci_de

        eth_dev->data->kdrv = pci_dev->kdrv;
        eth_dev->data->numa_node = pci_dev->device.numa_node;
-       eth_dev->data->drv_name = pci_dev->driver->driver.name;
 }

 int
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 9678179..63e7931 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1642,6 +1642,7 @@ struct rte_eth_dev {
         */
        struct rte_eth_rxtx_callback
*pre_tx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
        uint8_t attached; /**< Flag indicating the port is attached */
+       struct rte_driver *rte_driver;
 } __rte_cache_aligned;

 struct rte_eth_dev_sriov {