On Fri, Jul 10, 2026 at 10:15:24PM +0530, Verma, Devendra wrote: > > > On 09-Jul-26 21:03, [email protected] wrote: > > Verma, Devendra: > > Can you help check if block non-ll mode? > > > > The current patch series is tested for non-LL mode. > The testing included varying data sizes for transfer and running > C2H (Write) & H2C (Read) for a specified duration on all the 8 Read > and 8 Write channels. > non-LL code works fine with this patch series. > Tested-By: Devendra Verma <[email protected]>
Can you post at v6 again, Sorry, I just missed this email during prep v6 for sashiko report problem. Frank > > -Devendra > > > Basic change > > > > struct dw_edma_desc *desc > > └─ chunk list > > └─ burst list > > > > To > > > > struct dw_edma_desc *desc > > └─ burst[n] > > > > Flatten desc structions and simplify code. > > > > I only test eDMA part, not hardware test hdma part. > > > > The finial goal is dymatic add DMA request when DMA running. So needn't > > wait for irq for fetch next round DMA request. > > > > This work is neccesary to for dymatic DMA request appending. > > > > The post this part first to review and test firstly during working dymatic > > DMA part. > > > > performance is little bit better. Use NVME as EP function > > > > Before > > > > Rnd read, 4KB, QD=1, 1 job : IOPS=6660, BW=26.0MiB/s (27.3MB/s) > > Rnd read, 4KB, QD=32, 1 job : IOPS=28.6k, BW=112MiB/s (117MB/s) > > Rnd read, 4KB, QD=32, 4 jobs: IOPS=33.4k, BW=130MiB/s (137MB/s) > > Rnd read, 128KB, QD=1, 1 job : IOPS=914, BW=114MiB/s (120MB/s) > > Rnd read, 128KB, QD=32, 1 job : IOPS=1204, BW=151MiB/s (158MB/s) > > Rnd read, 128KB, QD=32, 4 jobs: IOPS=1255, BW=157MiB/s (165MB/s) > > Rnd read, 512KB, QD=1, 1 job : IOPS=248, BW=124MiB/s (131MB/s) > > Rnd read, 512KB, QD=32, 1 job : IOPS=353, BW=177MiB/s (185MB/s) > > Rnd read, 512KB, QD=32, 4 jobs: IOPS=388, BW=194MiB/s (204MB/s) > > Rnd write, 4KB, QD=1, 1 job : IOPS=6241, BW=24.4MiB/s (25.6MB/s) > > Rnd write, 4KB, QD=32, 1 job : IOPS=24.7k, BW=96.5MiB/s (101MB/s) > > Rnd write, 4KB, QD=32, 4 jobs: IOPS=26.9k, BW=105MiB/s (110MB/s) > > Rnd write, 128KB, QD=1, 1 job : IOPS=780, BW=97.5MiB/s (102MB/s) > > Rnd write, 128KB, QD=32, 1 job : IOPS=987, BW=123MiB/s (129MB/s) > > Rnd write, 128KB, QD=32, 4 jobs: IOPS=1021, BW=128MiB/s (134MB/s) > > Seq read, 128KB, QD=1, 1 job : IOPS=1190, BW=149MiB/s (156MB/s) > > Seq read, 128KB, QD=32, 1 job : IOPS=1400, BW=175MiB/s (184MB/s) > > Seq read, 512KB, QD=1, 1 job : IOPS=243, BW=122MiB/s (128MB/s) > > Seq read, 512KB, QD=32, 1 job : IOPS=355, BW=178MiB/s (186MB/s) > > Seq read, 1MB, QD=32, 1 job : IOPS=191, BW=192MiB/s (201MB/s) > > Seq write, 128KB, QD=1, 1 job : IOPS=784, BW=98.1MiB/s (103MB/s) > > Seq write, 128KB, QD=32, 1 job : IOPS=1030, BW=129MiB/s (135MB/s) > > Seq write, 512KB, QD=1, 1 job : IOPS=216, BW=108MiB/s (114MB/s) > > Seq write, 512KB, QD=32, 1 job : IOPS=295, BW=148MiB/s (155MB/s) > > Seq write, 1MB, QD=32, 1 job : IOPS=164, BW=165MiB/s (173MB/s) > > Rnd rdwr, 4K..1MB, QD=8, 4 jobs: IOPS=250, BW=126MiB/s (132MB/s) > > IOPS=261, BW=132MiB/s (138MB/s > > > > After > > Rnd read, 4KB, QD=1, 1 job : IOPS=6780, BW=26.5MiB/s (27.8MB/s) > > Rnd read, 4KB, QD=32, 1 job : IOPS=28.6k, BW=112MiB/s (117MB/s) > > Rnd read, 4KB, QD=32, 4 jobs: IOPS=33.4k, BW=130MiB/s (137MB/s) > > Rnd read, 128KB, QD=1, 1 job : IOPS=1188, BW=149MiB/s (156MB/s) > > Rnd read, 128KB, QD=32, 1 job : IOPS=1440, BW=180MiB/s (189MB/s) > > Rnd read, 128KB, QD=32, 4 jobs: IOPS=1282, BW=160MiB/s (168MB/s) > > Rnd read, 512KB, QD=1, 1 job : IOPS=254, BW=127MiB/s (134MB/s) > > Rnd read, 512KB, QD=32, 1 job : IOPS=354, BW=177MiB/s (186MB/s) > > Rnd read, 512KB, QD=32, 4 jobs: IOPS=388, BW=194MiB/s (204MB/s) > > Rnd write, 4KB, QD=1, 1 job : IOPS=6282, BW=24.5MiB/s (25.7MB/s) > > Rnd write, 4KB, QD=32, 1 job : IOPS=24.9k, BW=97.5MiB/s (102MB/s) > > Rnd write, 4KB, QD=32, 4 jobs: IOPS=27.4k, BW=107MiB/s (112MB/s) > > Rnd write, 128KB, QD=1, 1 job : IOPS=1098, BW=137MiB/s (144MB/s) > > Rnd write, 128KB, QD=32, 1 job : IOPS=1195, BW=149MiB/s (157MB/s) > > Rnd write, 128KB, QD=32, 4 jobs: IOPS=1120, BW=140MiB/s (147MB/s) > > Seq read, 128KB, QD=1, 1 job : IOPS=936, BW=117MiB/s (123MB/s) > > Seq read, 128KB, QD=32, 1 job : IOPS=1218, BW=152MiB/s (160MB/s) > > Seq read, 512KB, QD=1, 1 job : IOPS=301, BW=151MiB/s (158MB/s) > > Seq read, 512KB, QD=32, 1 job : IOPS=360, BW=180MiB/s (189MB/s) > > Seq read, 1MB, QD=32, 1 job : IOPS=193, BW=194MiB/s (203MB/s) > > Seq write, 128KB, QD=1, 1 job : IOPS=796, BW=99.5MiB/s (104MB/s) > > Seq write, 128KB, QD=32, 1 job : IOPS=1019, BW=127MiB/s (134MB/s) > > Seq write, 512KB, QD=1, 1 job : IOPS=213, BW=107MiB/s (112MB/s) > > Seq write, 512KB, QD=32, 1 job : IOPS=273, BW=137MiB/s (143MB/s) > > Seq write, 1MB, QD=32, 1 job : IOPS=168, BW=168MiB/s (177MB/s) > > Rnd rdwr, 4K..1MB, QD=8, 4 jobs: IOPS=255, BW=128MiB/s (134MB/s) > > IOPS=266, BW=135MiB/s (141MB/s) > > > > Signed-off-by: Frank Li <[email protected]> > > --- > > Changes in v5: > > - Fix cover letter typo > > - Fix double subtract found by sashiko AI > > - Link to v4: > > https://patch.msgid.link/[email protected] > > > > Changes in v4: > > - collect Koichiro Den test by tags > > - use addr in argument when set ll address, found by sashiko > > - fix iterate burst problem when exceed max link list, found by sashiko > > - Link to v3: > > https://patch.msgid.link/[email protected] > > > > Changes in v3: > > - remove patch dmaengine: dw-edma: Remove ll_max = -1 in > > dw_edma_channel_setup() > > - rebase to vnod's dmaengine topic/config_prep_api > > - Add non-ll-start() callback to handle non-ll mode transfer > > - Link to v2: > > https://lore.kernel.org/r/[email protected] > > > > Changes in v2: > > - use 'eDMA' and 'HDMA' at commit message > > - remove debug code. > > - keep 'inline' to avoid build warning > > - Link to v1: > > https://lore.kernel.org/r/[email protected] > > > > --- > > Frank Li (10): > > dmaengine: dw-edma: Move control field update of DMA link to the > > last step > > dmaengine: dw-edma: Add xfer_sz field to struct dw_edma_chunk > > dmaengine: dw-edma: Move ll_region from struct dw_edma_chunk to > > struct dw_edma_chan > > dmaengine: dw-edma: Pass down dw_edma_chan to reduce one level of > > indirection > > dmaengine: dw-edma: Add helper dw_(edma|hdma)_v0_core_ch_enable() > > dmaengine: dw-edma: Add callbacks to fill link list entries > > dmaengine: dw-edma: Add non_ll_start() callback > > dmaengine: dw-edma: Use common dw_edma_core_start() for both eDMA > > and HDMA > > dmaengine: dw-edma: Use burst array instead of linked list > > dmaengine: dw-edma: Remove struct dw_edma_chunk > > > > drivers/dma/dw-edma/dw-edma-core.c | 218 ++++++++---------------------- > > drivers/dma/dw-edma/dw-edma-core.h | 65 ++++++--- > > drivers/dma/dw-edma/dw-edma-v0-core.c | 240 > > +++++++++++++++++----------------- > > drivers/dma/dw-edma/dw-hdma-v0-core.c | 169 ++++++++++++------------ > > 4 files changed, 304 insertions(+), 388 deletions(-) > > --- > > base-commit: c9e9927c6d8346cdf6555a8f97da093980172e4b > > change-id: 20251211-edma_ll-0904ba089f01 > > > > Best regards, > > -- > > Frank Li <[email protected]> > > >
