extern "C" {
#endif
+#include <stdio.h>
#include <sys/queue.h>
-/** Double linked list of device drivers. */
-TAILQ_HEAD(rte_driver_list, rte_driver);
+#include <rte_log.h>
-/**
- * Initialization function called for each device driver once.
- */
-typedef int (rte_dev_init_t)(const char *name, const char *args);
+__attribute__((format(printf, 2, 0)))
+static inline void
+rte_pmd_debug_trace(const char *func_name, const char *fmt, ...)
+{
+ va_list ap;
-/**
- * Uninitilization function called for each device driver once.
- */
-typedef int (rte_dev_uninit_t)(const char *name);
+ va_start(ap, fmt);
+
+ char buffer[vsnprintf(NULL, 0, fmt, ap) + 1];
+
+ va_end(ap);
+
+ va_start(ap, fmt);
+ vsnprintf(buffer, sizeof(buffer), fmt, ap);
+ va_end(ap);
+
+ rte_log(RTE_LOG_ERR, RTE_LOGTYPE_PMD, "%s: %s", func_name, buffer);
+}
+
+/* Macros for checking for restricting functions to primary instance only */
+#define RTE_PROC_PRIMARY_OR_ERR_RET(retval) do { \
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) { \
+ RTE_PMD_DEBUG_TRACE("Cannot run in secondary processes\n"); \
+ return retval; \
+ } \
+} while (0)
+
+#define RTE_PROC_PRIMARY_OR_RET() do { \
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) { \
+ RTE_PMD_DEBUG_TRACE("Cannot run in secondary processes\n"); \
+ return; \
+ } \
+} while (0)
+
+/* Macros to check for invalid function pointers */
+#define RTE_FUNC_PTR_OR_ERR_RET(func, retval) do { \
+ if ((func) == NULL) { \
+ RTE_PMD_DEBUG_TRACE("Function not supported\n"); \
+ return retval; \
+ } \
+} while (0)
+
+#define RTE_FUNC_PTR_OR_RET(func) do { \
+ if ((func) == NULL) { \
+ RTE_PMD_DEBUG_TRACE("Function not supported\n"); \
+ return; \
+ } \
+} while (0)
+
+
+/** Double linked list of device drivers. */
+TAILQ_HEAD(rte_driver_list, rte_driver);
/**
* Driver type enumeration
TAILQ_ENTRY(rte_driver) next; /**< Next in list. */
enum pmd_type type; /**< PMD Driver type */
const char *name; /**< Driver name. */
- rte_dev_init_t *init; /**< Device init. function. */
- rte_dev_uninit_t *uninit; /**< Device uninit. function. */
};
/**
*/
int rte_eal_vdev_uninit(const char *name);
-#define PMD_REGISTER_DRIVER(d)\
-void devinitfn_ ##d(void);\
-void __attribute__((constructor, used)) devinitfn_ ##d(void)\
+/**
+ * Attach a device to a registered driver.
+ *
+ * @param name
+ * The device name, that refers to a pci device (or some private
+ * way of designating a vdev device). Based on this device name, eal
+ * will identify a driver capable of handling it and pass it to the
+ * driver probing function.
+ * @param devargs
+ * Device arguments to be passed to the driver.
+ * @return
+ * 0 on success, negative on error.
+ */
+int rte_eal_dev_attach(const char *name, const char *devargs);
+
+/**
+ * Detach a device from its driver.
+ *
+ * @param name
+ * Same description as for rte_eal_dev_attach().
+ * Here, eal will call the driver detaching function.
+ * @return
+ * 0 on success, negative on error.
+ */
+int rte_eal_dev_detach(const char *name);
+
+#define DRIVER_EXPORT_NAME_ARRAY(n, idx) n##idx[]
+
+#define DRIVER_EXPORT_NAME(name, idx) \
+static const char DRIVER_EXPORT_NAME_ARRAY(this_pmd_name, idx) \
+__attribute__((used)) = RTE_STR(name)
+
+#define PMD_REGISTER_DRIVER(drv, nm)\
+RTE_INIT(probefn_ ##drv);\
+static void probefn_ ##drv(void)\
{\
- rte_eal_driver_register(&d);\
-}
+ (drv).name = RTE_STR(nm);\
+ rte_eal_driver_register(&drv);\
+} \
+DRIVER_EXPORT_NAME(nm, __COUNTER__)
+
+#define DRV_EXP_TAG(name, tag) __##name##_##tag
+
+#define DRIVER_REGISTER_PCI_TABLE(name, table) \
+static const char DRV_EXP_TAG(name, pci_tbl_export)[] __attribute__((used)) = \
+RTE_STR(table)
+
+#define DRIVER_REGISTER_PARAM_STRING(name, str) \
+static const char DRV_EXP_TAG(name, param_string_export)[] \
+__attribute__((used)) = str
#ifdef __cplusplus
}