On 30/10/2019, zhichen@xxxxxxxxxxxxxx <zhichen@xxxxxxxxxxxxxx> wrote: > On 2019-10-23 01:16, Peter Oh wrote: >> >> How can you say value 0 (I believe it's 64 bytes) DMA burst size >> causes the symptom and 1 fixes it? >> >> Peter > > Confirmed from HW team that the configuration controls AXI burst size of > the RD/WR access to the HOST MEM. > 0- No split , RAW read/write transfer size from MAC is put out on bus as > burst length. > 1- Split at 256 byte boundary > 2,3- Reserved > > That's why we see issue with value 0. > > Zhi > > _______________________________________________ > ath10k mailing list > ath10k@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/ath10k > is this true for both wave1 and wave2 ? at least per this commit message: ath10k: Fix DMA burst size it's suppose to be: 0 - 128B max (not sure if this means 128B static, or any size between 0 and 128) 1 - 256B
