On Tue, Jul 20, 2021 at 07:12:52PM +0800, Chengwen Feng wrote: > This patch introduce 'dmadevice' which is a generic type of DMA > device. > > The APIs of dmadev library exposes some generic operations which can > enable configuration and I/O with the DMA devices. > > Signed-off-by: Chengwen Feng <fengcheng...@huawei.com>
Apologies for late feedback. Just reporting issues as I find them working with the code. /Bruce > --- <snip> > + > +/** > + * @warning > + * @b EXPERIMENTAL: this API may change without prior notice. > + * > + * Returns the number of operations that have been completed, and the > + * operations result may succeed or fail. > + * > + * @param dev_id > + * The identifier of the device. > + * @param vchan > + * The identifier of virtual DMA channel. > + * @param nb_cpls > + * Indicates the size of status array. > + * @param[out] last_idx > + * The last completed operation's index. > + * If not required, NULL can be passed in. > + * @param[out] status > + * The error code of operations that completed. > + * @see enum rte_dma_status_code The documentation should make it clear that this is an array with "nb_cpls" entries. > + * > + * @return > + * The number of operations that completed. This return value must be less > + * than or equal to the value of nb_cpls. also update this to report that the appropriate number of "status" entries have been filled out. > + */ > +__rte_experimental > +static inline uint16_t > +rte_dmadev_completed_status(uint16_t dev_id, uint16_t vchan, > + const uint16_t nb_cpls, uint16_t *last_idx, > + enum rte_dma_status_code *status) <snip>
