diff options
| author | Ola Liljedahl <ola.liljedahl@linaro.org> | 2015-02-04 22:07:24 +0100 |
|---|---|---|
| committer | Maxim Uvarov <maxim.uvarov@linaro.org> | 2015-02-05 16:19:56 +0300 |
| commit | 12254559d83df65d713e78faa2325474ec4764e5 (patch) | |
| tree | 51c8cb46982ec01af876f748f575b82be3686c50 /include/odp/api/packet_io.h | |
| parent | 9208c4039548cf38c3b204094c1781b7e71f9ce3 (diff) | |
api: odp_pktio.h: odp_pktio_mac_addr() return chars written or error
Added define ODP_PKTIO_MACADDR_MAXSIZE which specifies the recommended
output buffer size for odp_pktio_mac_addr().
odp_pktio_mac_addr() takes output buffer size as input and returns
number of chars written (on success), <0 on failure.
Updated the implementation.
Updated all usages in example and test programs.
Signed-off-by: Ola Liljedahl <ola.liljedahl@linaro.org>
Reviewed-by: Petri Savolainen <petri.savolainen@linaro.org>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Diffstat (limited to 'include/odp/api/packet_io.h')
| -rw-r--r-- | include/odp/api/packet_io.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/include/odp/api/packet_io.h b/include/odp/api/packet_io.h index 3e4bac467..9d18489f9 100644 --- a/include/odp/api/packet_io.h +++ b/include/odp/api/packet_io.h @@ -18,6 +18,7 @@ extern "C" { #endif +#include <sys/types.h> /** @defgroup odp_packet_io ODP PACKET IO * Operations on a packet. @@ -39,6 +40,12 @@ extern "C" { * odp_pktio_t value to indicate any port */ +/* + * @def ODP_PKTIO_MACADDR_MAXSIZE + * Minimum size of output buffer for odp_pktio_mac_addr() + * Actual MAC address sizes may be different. + */ + /** * Open an ODP packet IO instance * @@ -169,14 +176,14 @@ int odp_pktio_promisc_mode(odp_pktio_t id); /** * Get the default MAC address of a packet IO interface. * - * @param id ODP packet IO handle. - * @param[out] mac_addr Storage for MAC address of the packet IO interface. - * @param addr_size Storage size for the address + * @param id ODP packet IO handle + * @param[out] mac_addr Output buffer (use ODP_PKTIO_MACADDR_MAXSIZE) + * @param size Size of output buffer * - * @retval Number of bytes written on success, 0 on failure. + * @return Number of bytes written (actual size of MAC address) + * @retval <0 on failure */ -size_t odp_pktio_mac_addr(odp_pktio_t id, void *mac_addr, - size_t addr_size); +ssize_t odp_pktio_mac_addr(odp_pktio_t id, void *mac_addr, ssize_t size); /** * Setup per-port default class-of-service. |