Hi Ivan, On 11/28/23 18:43, Ivan Ivanov wrote: > > Hi Minas, > > On Tue, 2023-11-28 at 11:48 +0000, Minas Harutyunyan wrote: >> >> Does this "spurious" interrupt broke your tests? > > It is not just some kind of synthetic test case that was broken. > but real world usage. You can find complains about this error on > various internet forums, just search for dwc2_hc_chhltd_intr_dma > and it is not so difficult to reproduce. > > Without databook I am not sure we can create better fix, but if > you develop different solution I will gladly tested it. > > Regards, > Ivan 1. In addition to HCCHARx and ep_type printing please add printing of GRXFSTSR if EP is IN or GNPTXSTS if EP is OUT, and provide dmesg with error case. 2. In function dwc2_hc_chhltd_intr_dma() remove "goto error;" after printing "ChHltd set, but reason is unknown". Questions. 1. Do you see in the dmesg "Transaction Error--" before "ChHltd set, but reason is unknown"? 2. Your driver built for Host mode only or for both Device/Host? 3. If you build driver with debug and verbose debug prints enabled, issue still seen? 4. Andrea wrote: "we are atrss testing via ping flooding through an LTE modem attached". This about USB2.0 ping flood in USB trace or just "ping" user command? Thanks, Minas
