[dpdk-dev] [PATCH v11 07/24] driver: probe/remove common wrappers for PCI drivers

[Shreyansh Jain]

From: David Marchand <david.marchand at 6wind.com>

crypto and ethdev drivers aligned to PCI probe/remove. These wrappers are
mapped directly to PCI resources.
Existing handlers for init/uninit can be easily reused for this.

Signed-off-by: David Marchand <david.marchand at 6wind.com>
Signed-off-by: Shreyansh Jain <shreyansh.jain at nxp.com>
---
 lib/librte_cryptodev/rte_cryptodev.c           | 17 +++++++++--------
 lib/librte_cryptodev/rte_cryptodev_pmd.h       | 12 ++++++++++++
 lib/librte_cryptodev/rte_cryptodev_version.map |  7 +++++++
 lib/librte_ether/rte_ethdev.c                  | 14 +++++++-------
 lib/librte_ether/rte_ethdev.h                  | 13 +++++++++++++
 lib/librte_ether/rte_ether_version.map         |  9 +++++++++
 6 files changed, 57 insertions(+), 15 deletions(-)

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 144c205..caa9db8 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -428,9 +428,9 @@ rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
 	return cryptodev;
 }
 
-static int
-rte_cryptodev_init(struct rte_pci_driver *pci_drv,
-		struct rte_pci_device *pci_dev)
+int
+rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
+			struct rte_pci_device *pci_dev)
 {
 	struct rte_cryptodev_driver *cryptodrv;
 	struct rte_cryptodev *cryptodev;
@@ -489,8 +489,8 @@ rte_cryptodev_init(struct rte_pci_driver *pci_drv,
 	return -ENXIO;
 }
 
-static int
-rte_cryptodev_uninit(struct rte_pci_device *pci_dev)
+int
+rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
 {
 	const struct rte_cryptodev_driver *cryptodrv;
 	struct rte_cryptodev *cryptodev;
@@ -538,15 +538,16 @@ rte_cryptodev_pmd_driver_register(struct rte_cryptodev_driver *cryptodrv,
 {
 	/* Call crypto device initialization directly if device is virtual */
 	if (type == PMD_VDEV)
-		return rte_cryptodev_init((struct rte_pci_driver *)cryptodrv,
+		return rte_cryptodev_pci_probe(
+				(struct rte_pci_driver *)cryptodrv,
 				NULL);
 
 	/*
 	 * Register PCI driver for physical device intialisation during
 	 * PCI probing
 	 */
-	cryptodrv->pci_drv.probe = rte_cryptodev_init;
-	cryptodrv->pci_drv.remove = rte_cryptodev_uninit;
+	cryptodrv->pci_drv.probe = rte_cryptodev_pci_probe;
+	cryptodrv->pci_drv.remove = rte_cryptodev_pci_remove;
 
 	rte_eal_pci_register(&cryptodrv->pci_drv);
 
diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.h b/lib/librte_cryptodev/rte_cryptodev_pmd.h
index 9a9174f..450a376 100644
--- a/lib/librte_cryptodev/rte_cryptodev_pmd.h
+++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h
@@ -536,6 +536,18 @@ rte_cryptodev_pmd_driver_register(struct rte_cryptodev_driver *crypto_drv,
 void rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
 				enum rte_cryptodev_event_type event);
 
+/**
+ * Wrapper for use by pci drivers as a .probe function to attach to a crypto
+ * interface.
+ */
+int rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
+			    struct rte_pci_device *pci_dev);
+
+/**
+ * Wrapper for use by pci drivers as a .remove function to detach a crypto
+ * interface.
+ */
+int rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev);
 
 #ifdef __cplusplus
 }
diff --git a/lib/librte_cryptodev/rte_cryptodev_version.map b/lib/librte_cryptodev/rte_cryptodev_version.map
index a08fd20..1fc0d57 100644
--- a/lib/librte_cryptodev/rte_cryptodev_version.map
+++ b/lib/librte_cryptodev/rte_cryptodev_version.map
@@ -39,3 +39,10 @@ DPDK_16.07 {
 	rte_cryptodev_parse_vdev_init_params;
 
 } DPDK_16.04;
+
+DPDK_16.11 {
+	global:
+
+	rte_cryptodev_pci_probe;
+	rte_cryptodev_pci_remove;
+} DPDK_16.07;
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index aa41a0c..42d7d5e 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -244,9 +244,9 @@ rte_eth_dev_release_port(struct rte_eth_dev *eth_dev)
 	return 0;
 }
 
-static int
-rte_eth_dev_init(struct rte_pci_driver *pci_drv,
-		 struct rte_pci_device *pci_dev)
+int
+rte_eth_dev_pci_probe(struct rte_pci_driver *pci_drv,
+		      struct rte_pci_device *pci_dev)
 {
 	struct eth_driver    *eth_drv;
 	struct rte_eth_dev *eth_dev;
@@ -298,8 +298,8 @@ rte_eth_dev_init(struct rte_pci_driver *pci_drv,
 	return diag;
 }
 
-static int
-rte_eth_dev_uninit(struct rte_pci_device *pci_dev)
+int
+rte_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
 {
 	const struct eth_driver *eth_drv;
 	struct rte_eth_dev *eth_dev;
@@ -356,8 +356,8 @@ rte_eth_dev_uninit(struct rte_pci_device *pci_dev)
 void
 rte_eth_driver_register(struct eth_driver *eth_drv)
 {
-	eth_drv->pci_drv.probe = rte_eth_dev_init;
-	eth_drv->pci_drv.remove = rte_eth_dev_uninit;
+	eth_drv->pci_drv.probe = rte_eth_dev_pci_probe;
+	eth_drv->pci_drv.remove = rte_eth_dev_pci_remove;
 	rte_eal_pci_register(&eth_drv->pci_drv);
 }
 
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 96575e8..83079e9 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -4372,6 +4372,19 @@ rte_eth_dev_get_port_by_name(const char *name, uint8_t *port_id);
 int
 rte_eth_dev_get_name_by_port(uint8_t port_id, char *name);
 
+/**
+ * Wrapper for use by pci drivers as a .probe function to attach to a ethdev
+ * interface.
+ */
+int rte_eth_dev_pci_probe(struct rte_pci_driver *pci_drv,
+			  struct rte_pci_device *pci_dev);
+
+/**
+ * Wrapper for use by pci drivers as a .remove function to detach a ethdev
+ * interface.
+ */
+int rte_eth_dev_pci_remove(struct rte_pci_device *pci_dev);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map
index 45ddf44..17e7448 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -138,4 +138,13 @@ DPDK_16.07 {
 	rte_eth_dev_get_name_by_port;
 	rte_eth_dev_get_port_by_name;
 	rte_eth_xstats_get_names;
+
 } DPDK_16.04;
+
+DPDK_16.11 {
+	global:
+
+	rte_eth_dev_pci_probe;
+	rte_eth_dev_pci_remove;
+
+} DPDK_16.07;
-- 
2.7.4