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From: Jiawen Wu <jiawenwu@trustnetic.com>
To: dev@dpdk.org
Cc: Jiawen Wu <jiawenwu@trustnetic.com>
Date: Thu, 18 Mar 2021 17:32:05 +0800
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Subject: [dpdk-dev] [PATCH 3/6] net/ngbe: support probe and remove
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Add basic PCIe ethdev probe and remove.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
doc/guides/nics/features/ngbe.ini | 1 +
drivers/net/ngbe/ngbe_ethdev.c | 77 +++++++++++++++++++++++++++++--
2 files changed, 75 insertions(+), 3 deletions(-)
diff --git a/doc/guides/nics/features/ngbe.ini b/doc/guides/nics/features/ngbe.ini
index a7a524def..977286ac0 100644
--- a/doc/guides/nics/features/ngbe.ini
+++ b/doc/guides/nics/features/ngbe.ini
@@ -4,6 +4,7 @@
; Refer to default.ini for the full list of available PMD features.
;
[Features]
+Multiprocess aware = Y
Linux = Y
ARMv8 = Y
x86-32 = Y
diff --git a/drivers/net/ngbe/ngbe_ethdev.c b/drivers/net/ngbe/ngbe_ethdev.c
index da951b6ef..d938fd68a 100644
--- a/drivers/net/ngbe/ngbe_ethdev.c
+++ b/drivers/net/ngbe/ngbe_ethdev.c
@@ -1,10 +1,12 @@
- /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2018-2020
- */
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018-2020
+ */
+#include <rte_common.h>
#include <ethdev_pci.h>
#include <base/ngbe_devids.h>
+#include "ngbe_ethdev.h"
/*
* The set of PCI devices this driver supports
@@ -25,10 +27,79 @@ static const struct rte_pci_id pci_id_ngbe_map[] = {
{ .vendor_id = 0, /* sentinel */ },
};
+static int
+eth_ngbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
+{
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ rte_eth_copy_pci_info(eth_dev, pci_dev);
+
+ return 0;
+}
+
+static int
+eth_ngbe_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ RTE_SET_USED(eth_dev);
+
+ return 0;
+}
+
+static int
+eth_ngbe_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+ struct rte_pci_device *pci_dev)
+{
+ struct rte_eth_dev *pf_ethdev;
+ struct rte_eth_devargs eth_da;
+ int retval;
+
+ if (pci_dev->device.devargs) {
+ retval = rte_eth_devargs_parse(pci_dev->device.devargs->args,
+ ð_da);
+ if (retval)
+ return retval;
+ } else {
+ memset(ð_da, 0, sizeof(eth_da));
+ }
+
+ retval = rte_eth_dev_create(&pci_dev->device, pci_dev->device.name,
+ sizeof(struct ngbe_adapter),
+ eth_dev_pci_specific_init, pci_dev,
+ eth_ngbe_dev_init, NULL);
+
+ if (retval || eth_da.nb_representor_ports < 1)
+ return retval;
+
+ pf_ethdev = rte_eth_dev_allocated(pci_dev->device.name);
+ if (pf_ethdev == NULL)
+ return -ENODEV;
+
+ return 0;
+}
+
+static int eth_ngbe_pci_remove(struct rte_pci_device *pci_dev)
+{
+ struct rte_eth_dev *ethdev;
+
+ ethdev = rte_eth_dev_allocated(pci_dev->device.name);
+ if (!ethdev)
+ return -ENODEV;
+
+ return rte_eth_dev_destroy(ethdev, eth_ngbe_dev_uninit);
+}
+
static struct rte_pci_driver rte_ngbe_pmd = {
.id_table = pci_id_ngbe_map,
.drv_flags = RTE_PCI_DRV_NEED_MAPPING |
RTE_PCI_DRV_INTR_LSC,
+ .probe = eth_ngbe_pci_probe,
+ .remove = eth_ngbe_pci_remove,
};
RTE_PMD_REGISTER_PCI(net_ngbe, rte_ngbe_pmd);
--
2.21.0.windows.1