On Tue, Oct 5, 2021 at 1:24 AM Kevin Laatz <kevin.la...@intel.com> wrote: > > On 04/10/2021 22:12, Radha Mohan wrote: > > On Fri, Sep 24, 2021 at 3:58 AM Chengwen Feng <fengcheng...@huawei.com> > > wrote: > >> The 'dmadevice' is a generic type of DMA device. > >> > >> This patch introduce the 'dmadevice' device allocation APIs. > >> > >> The infrastructure is prepared to welcome drivers in drivers/dma/ > >> > >> Signed-off-by: Chengwen Feng <fengcheng...@huawei.com> > >> Acked-by: Bruce Richardson <bruce.richard...@intel.com> > >> Acked-by: Morten Brørup <m...@smartsharesystems.com> > >> Acked-by: Jerin Jacob <jerinjac...@gmail.com> > >> Reviewed-by: Kevin Laatz <kevin.la...@intel.com> > >> Reviewed-by: Conor Walsh <conor.wa...@intel.com> > >> --- > >> MAINTAINERS | 5 + > >> config/rte_config.h | 3 + > >> doc/api/doxy-api-index.md | 1 + > >> doc/api/doxy-api.conf.in | 1 + > >> doc/guides/dmadevs/index.rst | 12 ++ > >> doc/guides/index.rst | 1 + > >> doc/guides/prog_guide/dmadev.rst | 64 ++++++ > >> doc/guides/prog_guide/img/dmadev.svg | 283 +++++++++++++++++++++++++ > >> doc/guides/prog_guide/index.rst | 1 + > >> doc/guides/rel_notes/release_21_11.rst | 4 + > >> drivers/dma/meson.build | 4 + > >> drivers/meson.build | 1 + > >> lib/dmadev/meson.build | 7 + > >> lib/dmadev/rte_dmadev.c | 263 +++++++++++++++++++++++ > >> lib/dmadev/rte_dmadev.h | 134 ++++++++++++ > >> lib/dmadev/rte_dmadev_core.h | 51 +++++ > >> lib/dmadev/rte_dmadev_pmd.h | 60 ++++++ > >> lib/dmadev/version.map | 20 ++ > >> lib/meson.build | 1 + > >> 19 files changed, 916 insertions(+) > >> create mode 100644 doc/guides/dmadevs/index.rst > >> create mode 100644 doc/guides/prog_guide/dmadev.rst > >> create mode 100644 doc/guides/prog_guide/img/dmadev.svg > >> create mode 100644 drivers/dma/meson.build > >> create mode 100644 lib/dmadev/meson.build > >> create mode 100644 lib/dmadev/rte_dmadev.c > >> create mode 100644 lib/dmadev/rte_dmadev.h > >> create mode 100644 lib/dmadev/rte_dmadev_core.h > >> create mode 100644 lib/dmadev/rte_dmadev_pmd.h > >> create mode 100644 lib/dmadev/version.map > >> > > <snip> > > Hi Chengwen, > > I see that the new version removed the "rte_dmadev_get_device_by_name()". > > What is the way to get the dmadev from inside the PMD .remove ? I am > > looking to get the dev_private as we need to do some cleanup > > operations from the remove function. > > > > regards, > > Radha Mohan > > Hi Radha, > > You can use rte_dma_get_dev_id(name) to get the device ID, which can > then be used to get the rte_dma_dev struct (which contains dev_private) > for that device from rte_dma_devices[]. > > See "idxd_dmadev_destroy()" in > http://patches.dpdk.org/project/dpdk/patch/20210924133916.4042773-6-kevin.la...@intel.com/ > for an example. > > Hope that helps,
Thanks Kevin. It helped. I wasn't looking at accessing the rte_dma_devices[] array directly. A library API would've been good. regards, Radha > > Kevin > >
