Messages in this thread |  | | Date | Sun, 4 Dec 2022 22:58:21 +0400 | Subject | Re: [PATCH net-next v1 02/13] net: wwan: tmi: Add buffer management | From | Sergey Ryazanov <> |
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On 22.11.2022 15:11, Yanchao Yang wrote: > From: MediaTek Corporation <linuxwwan@mediatek.com> > > To malloc I/O memory as soon as possible, buffer management comes into being. > It creates buffer pools that reserve some buffers through deferred works when > the driver isn't busy. > > The buffer management provides unified memory allocation/de-allocation > interfaces for other modules. It supports two buffer types of SKB and page. > Two reload work queues with different priority values are provided to meet > various requirements of the control plane and the data plane. > > When the reserved buffer count of the pool is less than a threshold (default > is 2/3 of the pool size), the reload work will restart to allocate buffers > from the OS until the buffer pool becomes full. When the buffer pool fills, > the OS will recycle the buffer freed by the user. > > Signed-off-by: Mingliang Xu <mingliang.xu@mediatek.com> > Signed-off-by: MediaTek Corporation <linuxwwan@mediatek.com> > --- > drivers/net/wwan/mediatek/Makefile | 3 +- > drivers/net/wwan/mediatek/mtk_bm.c | 369 ++++++++++++++++++++++++++++ > drivers/net/wwan/mediatek/mtk_bm.h | 79 ++++++ > drivers/net/wwan/mediatek/mtk_dev.c | 11 +- > drivers/net/wwan/mediatek/mtk_dev.h | 1 + > 5 files changed, 461 insertions(+), 2 deletions(-) > create mode 100644 drivers/net/wwan/mediatek/mtk_bm.c > create mode 100644 drivers/net/wwan/mediatek/mtk_bm.h
Yanchao, can you share some numbers, how this custom pool is outperform the regular kernel allocator?
-- Sergey
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