[PATCH 1/9] bus: add bus iterator to find a particular bus
From: Gaetan Rivet <hidden>
Date: 2017-05-24 15:05:37
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
From: Jan Blunck <redacted> Signed-off-by: Jan Blunck <redacted> --- lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 + lib/librte_eal/common/eal_common_bus.c | 14 ++++++++++++++ lib/librte_eal/common/include/rte_bus.h | 20 ++++++++++++++++++++ lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 + 4 files changed, 36 insertions(+)
diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
index 2e48a73..ed09ab2 100644
--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map@@ -162,6 +162,7 @@ DPDK_17.02 { DPDK_17.05 { global: + rte_bus_find; rte_cpu_is_supported; rte_log_dump; rte_log_register;
diff --git a/lib/librte_eal/common/eal_common_bus.c b/lib/librte_eal/common/eal_common_bus.c
index 8f9baf8..5e33129 100644
--- a/lib/librte_eal/common/eal_common_bus.c
+++ b/lib/librte_eal/common/eal_common_bus.c@@ -145,3 +145,17 @@ rte_bus_dump(FILE *f) } } } + +struct rte_bus * +rte_bus_find(int (*match)(const struct rte_bus *bus, const void *data), + const void *data) +{ + struct rte_bus *bus = NULL; + + TAILQ_FOREACH(bus, &rte_bus_list, next) { + if (match(bus, data)) + break; + } + + return bus; +}
diff --git a/lib/librte_eal/common/include/rte_bus.h b/lib/librte_eal/common/include/rte_bus.h
index 7c36969..66856bb 100644
--- a/lib/librte_eal/common/include/rte_bus.h
+++ b/lib/librte_eal/common/include/rte_bus.h@@ -141,6 +141,26 @@ int rte_bus_probe(void); void rte_bus_dump(FILE *f); /** + * Bus iterator to find a particular bus. + * + * The callback function should return 0 if the bus doesn't match and non-zero + * if it does. If the callback returns non-zero this function will stop + * iterating over any more buses. + * + * @param match + * Callback function to check bus + * + * @param data + * Data to pass to match callback + * + * @return + * A pointer to a rte_bus structure or NULL in case no bus matches + */ +struct rte_bus *rte_bus_find( + int (*match)(const struct rte_bus *bus, const void *data), + const void *data); + +/** * Helper for Bus registration. * The constructor has higher priority than PMD constructors. */
diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
index 670bab3..6efa517 100644
--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map@@ -166,6 +166,7 @@ DPDK_17.02 { DPDK_17.05 { global: + rte_bus_find; rte_cpu_is_supported; rte_intr_free_epoll_fd; rte_log_dump;
--
2.1.4