On 3/9/2016 5:31 PM, Dinh Nguyen wrote: > On Wed, Mar 9, 2016 at 8:53 AM, Giuseppe CAVALLARO > <peppe.cavallaro at st.com> wrote: >> Hi Tomeu, Dinh, Andreas >> >> I need a sum and help from you to go ahead on the >> tx timeout. >> >> The "stmmac: MDIO fixes" seems to be the candidate to >> fix the phy connection and I will send the V2 asap (Andreas' comment). >> >> So, supposing the probe is ok and phy is connected, >> I need your input ... >> >> Tomeu: after revering the 0e80bdc9a72d (stmmac: first frame >> prep at the end of xmit routine) the network is >> not stable and there is a timeout after a while. >> The box has 3.50 with normal desc settings. >> >> Dinh: the network is ok, I wonder if you can share a boot >> log just to understand if the normal or enhanced >> descriptors are used. >> > > Here it is: ... > [ 0.850523] stmmac - user ID: 0x10, Synopsys ID: 0x37 > [ 0.855570] Ring mode enabled > [ 0.858611] DMA HW capability register supported > [ 0.863128] Enhanced/Alternate descriptors > [ 0.867482] Enabled extended descriptors > [ 0.871482] RX Checksum Offload Engine supported (type 2) > [ 0.876948] TX Checksum insertion supported > [ 0.881204] Enable RX Mitigation via HW Watchdog Timer > [ 0.886863] socfpga-dwmac ff702000.ethernet eth0: No MDIO subnode found > [ 0.899090] libphy: stmmac: probed > [ 0.902484] eth0: PHY ID 00221611 at 4 IRQ POLL (stmmac-0:04) active Thx Dinh, so you are using the Enhanced/Alternate descriptors I am debugging on my side on a setup with normal descriptors, I let you know peppe