On Thu, Jun 8, 2017 at 1:53 AM, Gaetan Rivet <gaetan.ri...@6wind.com> wrote:
> From: Jan Blunck <jblu...@infradead.org>
>
> Signed-off-by: Jan Blunck <jblu...@infradead.org>
> Signed-off-by: Gaetan Rivet <gaetan.ri...@6wind.com>
> ---
> lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 +
> lib/librte_eal/common/eal_common_bus.c | 11 ++++++++
> lib/librte_eal/common/include/rte_bus.h | 34
> +++++++++++++++++++++++++
> lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 +
> 4 files changed, 47 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..a54aeb4 100644
> --- a/lib/librte_eal/common/eal_common_bus.c
> +++ b/lib/librte_eal/common/eal_common_bus.c
> @@ -145,3 +145,14 @@ rte_bus_dump(FILE *f)
> }
> }
> }
> +
> +struct rte_bus *
> +rte_bus_find(rte_bus_cmp_t cmp, const void *data)
> +{
> + struct rte_bus *bus = NULL;
> +
> + TAILQ_FOREACH(bus, &rte_bus_list, next)
> + if (cmp(bus, data) == 0)
> + 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..16bcfd9 100644
> --- a/lib/librte_eal/common/include/rte_bus.h
> +++ b/lib/librte_eal/common/include/rte_bus.h
> @@ -141,6 +141,40 @@ int rte_bus_probe(void);
> void rte_bus_dump(FILE *f);
>
> /**
> + * Bus comparison function.
> + *
> + * @param bus
> + * Bus under test.
> + *
> + * @param data
> + * Data to compare against.
> + *
> + * @return
> + * 0 if the bus matches the data.
> + * !0 if the bus does not match.
> + * <0 if ordering is possible and the bus is lower than the data.
> + * >0 if ordering is possible and the bus is greater than the data.
> + */
> +typedef int (*rte_bus_cmp_t)(const struct rte_bus *bus, const void *data);
Gaetan,
Thanks for doing the adjustments. I believe we should also pass the
starting pointer down to the bus implementation to enable continuation
of a search after the given starting pointer. Does this make sense?
> +
> +/**
> + * Bus iterator to find a particular bus.
> + *
> + * If the callback returns non-zero this function will stop iterating over
> + * any more buses.
> + *
> + * @param cmp
> + * Comparison function.
> + *
> + * @param data
> + * Data to pass to cmp callback
> + *
> + * @return
> + * A pointer to a rte_bus structure or NULL in case no bus matches
> + */
> +struct rte_bus *rte_bus_find(rte_bus_cmp_t cmp, 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
>
