Define a general represenation of a device and driver in DPDK. The goal is to
get rid of the deep dependency on the PCI. Higher level code should not
reference the bus-specific structures as it does not need to.
PCI infrastructure embeds those structures. Other infrastructures will do the
same.
Suggested-by: David Marchand <david.marchand at 6wind.com>
Signed-off-by: Jan Viktorin <viktorin at rehivetech.com>
---
lib/librte_eal/common/include/rte_dev.h | 9 +++++++++
lib/librte_eal/common/include/rte_pci.h | 3 +++
2 files changed, 12 insertions(+)
diff --git a/lib/librte_eal/common/include/rte_dev.h
b/lib/librte_eal/common/include/rte_dev.h
index f1b5507..b779705 100644
--- a/lib/librte_eal/common/include/rte_dev.h
+++ b/lib/librte_eal/common/include/rte_dev.h
@@ -50,6 +50,7 @@ extern "C" {
#include <sys/queue.h>
#include <rte_log.h>
+#include <rte_interrupts.h>
__attribute__((format(printf, 2, 0)))
static inline void
@@ -151,6 +152,14 @@ void rte_eal_driver_register(struct rte_driver *driver);
*/
void rte_eal_driver_unregister(struct rte_driver *driver);
+struct rte_bus_driver {
+ const char *name;
+};
+
+struct rte_bus_device {
+ const char *name;
+};
+
/**
* Initalize all the registered drivers in this process
*/
diff --git a/lib/librte_eal/common/include/rte_pci.h
b/lib/librte_eal/common/include/rte_pci.h
index 334c12e..10a2306 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -83,6 +83,7 @@ extern "C" {
#include <inttypes.h>
#include <rte_interrupts.h>
+#include <rte_dev.h>
TAILQ_HEAD(pci_device_list, rte_pci_device); /**< PCI devices in D-linked Q. */
TAILQ_HEAD(pci_driver_list, rte_pci_driver); /**< PCI drivers in D-linked Q. */
@@ -166,6 +167,7 @@ struct rte_pci_device {
int numa_node; /**< NUMA node connection */
struct rte_devargs *devargs; /**< Device user arguments */
enum rte_kernel_driver kdrv; /**< Kernel driver passthrough
*/
+ struct rte_bus_device dev; /**< Generic device */
};
/** Any PCI device identifier (vendor, device, ...) */
@@ -209,6 +211,7 @@ struct rte_pci_driver {
pci_devuninit_t *devuninit; /**< Device uninit function. */
const struct rte_pci_id *id_table; /**< ID table, NULL terminated.
*/
uint32_t drv_flags; /**< Flags contolling handling
of device. */
+ struct rte_bus_driver drv; /**< Generic driver */
};
/** Device needs PCI BAR mapping (done with either IGB_UIO or VFIO) */
--
2.7.0
