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authorChristian Ehrhardt <christian.ehrhardt@canonical.com>2018-06-01 09:09:08 +0200
committerChristian Ehrhardt <christian.ehrhardt@canonical.com>2018-06-01 09:12:07 +0200
commit1bd9b61222f3a81ffe770fc00b70ded6e760c42b (patch)
tree0bf7d996cf0664796687c1be6d22958fcf6a8096 /lib/librte_eal/common/include/rte_devargs.h
parentbb4e158029645f37809fcf81a3acddd6fa11f88a (diff)
New upstream version 18.05
Change-Id: Icd4170ddc4f63aeae5d0559490e5195b5349f9c2 Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'lib/librte_eal/common/include/rte_devargs.h')
-rw-r--r--lib/librte_eal/common/include/rte_devargs.h126
1 files changed, 103 insertions, 23 deletions
diff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h
index 84e5e23c..58fbd90a 100644
--- a/lib/librte_eal/common/include/rte_devargs.h
+++ b/lib/librte_eal/common/include/rte_devargs.h
@@ -59,13 +59,8 @@ struct rte_devargs {
char *args;
};
-/** user device double-linked queue type definition */
-TAILQ_HEAD(rte_devargs_list, rte_devargs);
-
-/** Global list of user devices */
-extern struct rte_devargs_list devargs_list;
-
/**
+ * @deprecated
* Parse a devargs string.
*
* For PCI devices, the format of arguments string is "PCI_ADDR" or
@@ -90,6 +85,7 @@ extern struct rte_devargs_list devargs_list;
* - 0 on success
* - A negative value on error
*/
+__rte_deprecated
int rte_eal_parse_devargs_str(const char *devargs_str,
char **drvname, char **drvargs);
@@ -100,18 +96,37 @@ int rte_eal_parse_devargs_str(const char *devargs_str,
* in argument. Store which bus will handle the device, its name
* and the eventual device parameters.
*
- * @param dev
- * The device declaration string.
+ * The device string is built with a printf-like syntax.
+ *
+ * The syntax is:
+ *
+ * bus:device_identifier,arg1=val1,arg2=val2
+ *
+ * where "bus:" is the bus name followed by any character separator.
+ * The bus name is optional. If no bus name is specified, each bus
+ * will attempt to recognize the device identifier. The first one
+ * to succeed will be used.
+ *
+ * Examples:
+ *
+ * pci:0000:05.00.0,arg=val
+ * 05.00.0,arg=val
+ * vdev:net_ring0
+ *
* @param da
* The devargs structure holding the device information.
+ * @param format
+ * Format string describing a device.
*
* @return
* - 0 on success.
* - Negative errno on error.
*/
-int __rte_experimental
-rte_eal_devargs_parse(const char *dev,
- struct rte_devargs *da);
+__rte_experimental
+int
+rte_devargs_parse(struct rte_devargs *da,
+ const char *format, ...)
+__attribute__((format(printf, 2, 0)));
/**
* Insert an rte_devargs in the global list.
@@ -123,21 +138,30 @@ rte_eal_devargs_parse(const char *dev,
* - 0 on success
* - Negative on error.
*/
-int __rte_experimental
-rte_eal_devargs_insert(struct rte_devargs *da);
+__rte_experimental
+int
+rte_devargs_insert(struct rte_devargs *da);
/**
* Add a device to the user device list
+ * See rte_devargs_parse() for details.
*
- * For PCI devices, the format of arguments string is "PCI_ADDR" or
- * "PCI_ADDR,key=val,key2=val2,...". Examples: "08:00.1", "0000:5:00.0",
- * "04:00.0,arg=val".
+ * @param devtype
+ * The type of the device.
+ * @param devargs_str
+ * The arguments as given by the user.
*
- * For virtual devices, the format of arguments string is "DRIVER_NAME*"
- * or "DRIVER_NAME*,key=val,key2=val2,...". Examples: "net_ring",
- * "net_ring0", "net_pmdAnything,arg=0:arg2=1". The validity of the
- * driver name is not checked by this function, it is done when probing
- * the drivers.
+ * @return
+ * - 0 on success
+ * - A negative value on error
+ */
+__rte_experimental
+int rte_devargs_add(enum rte_devtype devtype, const char *devargs_str);
+
+/**
+ * @deprecated
+ * Add a device to the user device list
+ * See rte_devargs_parse() for details.
*
* @param devtype
* The type of the device.
@@ -148,6 +172,7 @@ rte_eal_devargs_insert(struct rte_devargs *da);
* - 0 on success
* - A negative value on error
*/
+__rte_deprecated
int rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str);
/**
@@ -166,8 +191,9 @@ int rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str);
* <0 on error.
* >0 if the devargs was not within the user device list.
*/
-int __rte_experimental rte_eal_devargs_remove(const char *busname,
- const char *devname);
+__rte_experimental
+int rte_devargs_remove(const char *busname,
+ const char *devname);
/**
* Count the number of user devices of a specified type
@@ -178,6 +204,21 @@ int __rte_experimental rte_eal_devargs_remove(const char *busname,
* @return
* The number of devices.
*/
+__rte_experimental
+unsigned int
+rte_devargs_type_count(enum rte_devtype devtype);
+
+/**
+ * @deprecated
+ * Count the number of user devices of a specified type
+ *
+ * @param devtype
+ * The type of the devices to counted.
+ *
+ * @return
+ * The number of devices.
+ */
+__rte_deprecated
unsigned int
rte_eal_devargs_type_count(enum rte_devtype devtype);
@@ -187,8 +228,47 @@ rte_eal_devargs_type_count(enum rte_devtype devtype);
* @param f
* A pointer to a file for output
*/
+__rte_experimental
+void rte_devargs_dump(FILE *f);
+
+/**
+ * @deprecated
+ * This function dumps the list of user device and their arguments.
+ *
+ * @param f
+ * A pointer to a file for output
+ */
+__rte_deprecated
void rte_eal_devargs_dump(FILE *f);
+/**
+ * Find next rte_devargs matching the provided bus name.
+ *
+ * @param busname
+ * Limit the iteration to devargs related to buses
+ * matching this name.
+ * Will return any next rte_devargs if NULL.
+ *
+ * @param start
+ * Starting iteration point. The iteration will start at
+ * the first rte_devargs if NULL.
+ *
+ * @return
+ * Next rte_devargs entry matching the requested bus,
+ * NULL if there is none.
+ */
+__rte_experimental
+struct rte_devargs *
+rte_devargs_next(const char *busname, const struct rte_devargs *start);
+
+/**
+ * Iterate over all rte_devargs for a specific bus.
+ */
+#define RTE_EAL_DEVARGS_FOREACH(busname, da) \
+ for (da = rte_devargs_next(busname, NULL); \
+ da != NULL; \
+ da = rte_devargs_next(busname, da)) \
+
#ifdef __cplusplus
}
#endif