[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [UNIKRAFT PATCH v2 02/15] plat/tap: Bus interface for the tap device
The tap driver registers itself with the uk_bus. The uk_bus on initialization provide the necessary interface to setup the driver. The probe callback provides necessary interface to setup the tap device. Signed-off-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx> --- plat/drivers/tap/tap.c | 33 +++++++++++++++++++++++++++++++++ plat/linuxu/Config.uk | 1 + 2 files changed, 34 insertions(+) diff --git a/plat/drivers/tap/tap.c b/plat/drivers/tap/tap.c index 9bbf7dd..fa1b10e 100644 --- a/plat/drivers/tap/tap.c +++ b/plat/drivers/tap/tap.c @@ -38,6 +38,17 @@ #include <uk/netdev_driver.h> #include <uk/netbuf.h> #include <uk/errptr.h> +#include <uk/bus.h> + +struct tap_net_drv { + /* allocator to initialize the driver data structure */ + struct uk_alloc *a; +}; + +/** + * Module level variables + */ +static struct tap_net_drv tap_drv = {0}; /** * Module functions @@ -215,3 +226,25 @@ static const struct uk_netdev_ops tap_netdev_ops = { .txq_info_get = tap_netdev_txq_info_get, .rxq_info_get = tap_netdev_rxq_info_get, }; + +/** + * Register a tap driver as bus. Currently in Unikraft, the uk_bus interface + * provides the necessary to provide callbacks for bring a pseudo device. In the + * future we might provide interface to support the pseudo device. + */ +static int tap_drv_probe(void) +{ + return 0; +} + +static int tap_drv_init(struct uk_alloc *_a) +{ + tap_drv.a = _a; + return 0; +} + +static struct uk_bus tap_bus = { + .init = tap_drv_init, + .probe = tap_drv_probe, +}; +UK_BUS_REGISTER(&tap_bus); diff --git a/plat/linuxu/Config.uk b/plat/linuxu/Config.uk index 5df48f3..3900e8b 100644 --- a/plat/linuxu/Config.uk +++ b/plat/linuxu/Config.uk @@ -22,6 +22,7 @@ if (PLAT_LINUXU) bool "Tap driver" default y if LIBUKNETDEV depends on LIBUKNETDEV + select LIBUKBUS help Enable drivers to support tap device on the linuxu platform. The driver implements the uknetdev interface and provides an interface -- 2.7.4
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