TDA4VM: Problem with eth0 interface on custom board

Adam Kubiak

Intellectual 920 points

Part Number: TDA4VM

Hi,

We have a small problem with the eth0 interface on our custom board.

When we run some application which uses the eth0 interface we get some errors.

We are using the PSDKLA 7.0 and we don't have the same problems on the EVM.

The application works on our custom hardware however we can observe a lengthy call trace from kernel.

I am attaching the log with the call trace.

Fullscreen 03548.log.txt Download

> [ 3203.515446] eth0: hw csum failure
[ 3203.518774] skb len=1856 headroom=78 headlen=1500 tailroom=0
[ 3203.518774] mac=(64,14) net=(78,20) trans=98
[ 3203.518774] shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
[ 3203.518774] csum(0xca09e7af ip_summed=2 complete_sw=0 valid=0 level=0)
[ 3203.518774] hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=2 iif=2
[ 3203.546955] dev name=eth0 feat=0x0x0001008000004a09
[ 3203.551819] skb headroom: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3203.559456] skb headroom: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3203.567092] skb headroom: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3203.574729] skb headroom: 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3203.582365] skb headroom: 00000040: 01 00 5e 01 02 01 aa bb cc dd ee 10 08 00
[ 3203.589482] skb linear:   00000000: 45 00 07 40 54 20 00 00 01 11 ac 19 c0 a8 00 c9
[ 3203.597119] skb linear:   00000010: ef 01 02 01 c4 59 30 39 07 2c 1e bc 11 00 dd e1
[ 3203.604756] skb linear:   00000020: 00 00 07 18 00 00 00 11 02 f1 0b 00 00 4e 00 00
[ 3203.612391] skb linear:   00000030: de a5 00 00 11 11 11 11 ff ff ff ff 4b 86 41 19
[ 3203.620027] skb linear:   00000040: 4a 4f 31 28 4a 4d 61 28 4a 4d 59 a4 d1 39 57 5c
[ 3203.627662] skb linear:   00000050: c1 10 57 5a a1 0c 57 5a 59 a4 03 0e 5c 61 81 15
[ 3203.635304] skb linear:   00000060: 59 5d 42 3a 5b 5e 59 a4 e2 08 5a 60 91 11 58 5c
[ 3203.642940] skb linear:   00000070: c1 4a 59 5e 55 a0 f1 65 55 58 72 42 56 59 21 09
[ 3203.650581] skb linear:   00000080: 56 59 55 9e c1 44 55 5a 31 3e 55 59 61 48 55 59
[ 3203.658219] skb linear:   00000090: 51 94 23 1b 52 55 21 2c 50 54 61 42 50 53 4f 92
[ 3203.665855] skb linear:   000000a0: 32 1b 50 54 62 43 50 53 f3 14 51 54 51 98 71 20
[ 3203.673492] skb linear:   000000b0: 52 56 52 09 52 56 c2 64 51 55 51 98 d2 12 52 56
[ 3203.681128] skb linear:   000000c0: b1 50 52 56 81 2f 51 54 51 96 33 0a 54 58 31 48
[ 3203.688764] skb linear:   000000d0: 51 55 d2 66 50 53 51 96 f1 23 50 54 f2 38 51 55
[ 3203.696401] skb linear:   000000e0: 41 51 52 55 51 94 12 0c 53 58 41 34 51 55 33 62
[ 3203.704036] skb linear:   000000f0: 53 56 51 94 41 5a 50 53 a1 40 51 54 82 07 50 53
[ 3203.711673] skb linear:   00000100: 51 96 a2 0c 51 56 03 5d 52 56 92 4c 52 56 53 98
[ 3203.719309] skb linear:   00000110: 71 5e 53 57 e1 37 4f 52 11 38 4f 52 53 9a 41 3d
[ 3203.726946] skb linear:   00000120: 52 56 62 09 53 57 e2 12 53 56 53 98 b1 2c 51 55
[ 3203.734581] skb linear:   00000130: c2 0e 52 55 f2 13 53 56 53 98 a2 24 52 56 e2 35
[ 3203.742217] skb linear:   00000140: 52 56 b2 67 54 57 53 9a c2 0b 53 58 b1 4d 51 56
[ 3203.749853] skb linear:   00000150: 92 28 52 56 53 98 62 5c 52 56 51 31 51 54 f3 56
[ 3203.757489] skb linear:   00000160: 54 57 53 9a 31 18 53 57 91 63 53 57 e1 5c 52 55
[ 3203.765126] skb linear:   00000170: 51 94 92 04 51 56 22 27 51 55 f1 64 50 54 4f 90
[ 3203.772763] skb linear:   00000180: d2 20 50 54 61 53 4e 52 61 1d 4f 52 4d 8c e1 12
[ 3203.780399] skb linear:   00000190: 4e 52 21 35 4c 4f 21 59 4c 4f 4d 8a 71 57 4b 4e
[ 3203.788036] skb linear:   000001a0: e1 1d 4b 4e 11 65 4b 4e 49 82 33 35 4b 4f f1 1b
[ 3203.795671] skb linear:   000001b0: 49 4d 12 1c 49 4d 49 82 a3 37 4a 4d 42 4f 4a 4d
[ 3203.803308] skb linear:   000001c0: 42 19 49 4c 49 84 11 05 48 4d b1 5f 4a 4f e1 5f
[ 3203.810944] skb linear:   000001d0: 4a 4f 49 84 a3 2c 4b 4f a1 05 48 4b 73 10 4c 50
[ 3203.818580] skb linear:   000001e0: 49 84 d2 29 4a 4c 71 26 48 4b 91 26 48 4b 4b 84
[ 3203.826217] skb linear:   000001f0: 62 30 4b 50 72 0a 4c 50 d3 1b 4b 4f 4f 92 41 5e
[ 3203.833852] skb linear:   00000200: 4f 54 32 28 50 54 d2 44 50 54 4d 8a 02 67 4e 53
[ 3203.841488] skb linear:   00000210: 13 11 4d 50 33 11 4c 50 4d 8c f1 66 4c 50 21 1c
[ 3203.849125] skb linear:   00000220: 4e 51 82 35 4f 53 4d 8c b3 28 4f 53 52 23 4d 50
[ 3203.856761] skb linear:   00000230: 62 07 4c 4f 4d 8c 82 3b 4e 51 01 2f 4b 4e d3 16
[ 3203.864398] skb linear:   00000240: 4f 52 4d 8c 81 20 4c 4f 12 63 4d 50 52 63 4d 50
[ 3203.872034] skb linear:   00000250: 4f 90 41 40 4d 50 61 40 4d 50 31 09 50 53 4d 8c
[ 3203.879671] skb linear:   00000260: d3 21 4e 52 c2 51 4d 50 f2 51 4d 51 49 82 f2 29
[ 3203.887306] skb linear:   00000270: 49 4c 42 0f 49 4c 61 56 49 4c 4b 84 71 09 4a 4d
[ 3203.894941] skb linear:   00000280: 82 1c 4b 4e 22 2e 4b 4e 47 7c 52 0b 47 4c 72 0b
[ 3203.902578] skb linear:   00000290: 47 4c 51 59 44 47 47 7e 42 61 49 4c b1 08 47 4a
[ 3203.910217] skb linear:   000002a0: 62 1a 48 4b 49 82 21 12 48 4c f3 26 4b 4e 51 40
[ 3203.917854] skb linear:   000002b0: 47 4b 49 84 92 51 4b 4e 63 14 4b 4e 93 25 4a 4d
[ 3203.925491] skb linear:   000002c0: 49 84 52 24 49 4e 92 16 4a 4e 51 10 49 4c 49 82
[ 3203.933127] skb linear:   000002d0: 23 16 4b 4f b2 63 4a 4d d2 38 49 4c 4d 8e 71 18
[ 3203.940763] skb linear:   000002e0: 4d 51 83 52 50 53 81 34 4c 4f 4f 8e 01 66 4e 51
[ 3203.948398] skb linear:   000002f0: 31 66 4e 52 11 0a 4f 52 4d 8a 91 0b 4c 4f 53 2e
[ 3203.956035] skb linear:   00000300: 4d 50 21 4f 4b 4e 4b 88 21 30 49 4f 12 1d 4c 50
[ 3203.963671] skb linear:   00000310: f2 13 4c 50 6b b8 22 24 6b 70 42 24 6b 70 32 52
[ 3203.971307] skb linear:   00000320: 69 6e 55 a0 82 2d 57 5d f1 08 53 57 12 3b 56 59
[ 3203.978943] skb linear:   00000330: 61 ae 73 09 65 69 b1 22 61 66 f2 16 63 66 5d a8
[ 3203.986579] skb linear:   00000340: c2 0a 5e 63 83 4c 5e 62 a3 27 5d 61 73 c2 12 61
[ 3203.994216] skb linear:   00000350: 75 79 72 4d 75 79 32 5d 73 77 71 c2 c2 1e 75 7a
[ 3204.001851] skb linear:   00000360: f2 1e 75 7a 94 4d 76 7a 73 c2 b1 55 73 78 31 37
[ 3204.009486] skb linear:   00000370: 74 79 63 1e 74 79 6d bc f1 4c 6d 73 c3 13 70 75
[ 3204.017123] skb linear:   00000380: 72 3f 70 74 73 c4 e3 0a 76 7a 22 60 73 77 72 60
[ 3204.024759] skb linear:   00000390: 73 78 6b ba 91 64 69 6d 51 55 6a 6e 91 67 68 6c
[ 3204.032396] skb linear:   000003a0: 43 72 d2 4b 43 46 63 2e 43 46 84 2e 44 47 59 a4
[ 3204.040032] skb linear:   000003b0: 72 3e 5a 60 83 28 5b 5f 82 13 5b 5f 75 c4 61 3b
[ 3204.047668] skb linear:   000003c0: 73 77 72 0a 74 77 31 50 73 77 53 9a c2 31 54 58
[ 3204.055305] skb linear:   000003d0: e2 31 54 58 22 4d 53 58 73 c2 a1 2d 72 78 b2 51
[ 3204.062941] skb linear:   000003e0: 74 79 12 25 72 76 6f be 42 4b 70 75 32 61 70 74
[ 3204.070578] skb linear:   000003f0: 52 61 70 74 6d bc 92 26 71 77 71 0c 6c 71 01 54
[ 3204.078214] skb linear:   00000400: 6c 70 73 c2 b3 26 78 7e c2 1c 73 79 63 56 75 79
[ 3204.085849] skb linear:   00000410: 39 64 33 25 3f 45 52 25 3f 45 d2 48 38 3d 37 62
[ 3204.093486] skb linear:   00000420: 24 26 3e 42 82 3c 38 3e 51 04 38 3d 37 62 93 25
[ 3204.101122] skb linear:   00000430: 43 4c 03 0a 39 3f 42 11 37 3d 3d 68 51 0b 3d 41
[ 3204.108761] skb linear:   00000440: a3 1a 40 43 42 34 3e 41 3d 6a 43 26 44 4b f2 0e
[ 3204.116397] skb linear:   00000450: 3c 40 d1 49 3d 41 3b 66 03 26 3e 42 14 0e 3e 42
[ 3204.124034] skb linear:   00000460: 61 15 39 3e 3b 68 c3 26 43 49 c2 43 40 43 21 65
[ 3204.131670] skb linear:   00000470: 3a 40 3d 68 c2 26 3f 43 22 49 3b 40 52 49 3c 41
[ 3204.139307] skb linear:   00000480: 3b 68 b2 26 42 4c 41 1a 3c 41 c1 0a 3b 40 3d 6a
[ 3204.146961] skb linear:   00000490: b2 30 3e 42 41 68 3b 40 51 13 3c 40 3f 6c f2 26
[ 3204.154603] skb linear:   000004a0: 44 4b 52 3a 40 44 82 3a 40 44 3d 6a 51 05 3d 42
[ 3204.162241] skb linear:   000004b0: 81 05 3d 42 c1 10 3c 41 3d 6a 22 27 41 45 02 4b
[ 3204.169894] skb linear:   000004c0: 3e 43 84 2b 40 44 3f 6a e1 4f 3c 41 e2 27 40 43
[ 3204.177532] skb linear:   000004d0: b1 2f 3c 41 3f 6a e2 27 43 4a 22 0f 3e 42 82 3a
[ 3204.185168] skb linear:   000004e0: 3e 42 3f 6c 41 31 3b 41 91 0f 40 43 d3 13 41 43
[ 3204.192805] skb linear:   000004f0: 3d 6a 02 28 43 4c 92 3f 3f 43 e1 07 3b 40 3d 68
[ 3204.200441] skb linear:   00000500: 91 12 3d 42 52 06 3d 42 82 2d 3b 3f 3d 68 13 28
[ 3204.208077] skb linear:   00000510: 41 47 e1 32 3b 42 51 05 39 40 3b 68 21 5a 36 3b
[ 3204.215713] skb linear:   00000520: f2 48 3d 41 c1 42 37 3c 39 66 d2 28 40 48 63 46
[ 3204.223350] skb linear:   00000530: 3b 41 32 40 3b 41 39 64 41 4d 39 40 c3 3c 3c 41
[ 3204.230986] skb linear:   00000540: 72 53 39 40 3b 68 82 29 42 49 f2 42 3c 41 32 52
[ 3204.238623] skb linear:   00000550: 3c 41 3f 6a a2 20 3f 43 01 5a 3d 41 a1 5f 3b 40
[ 3204.246258] skb linear:   00000560: 3d 6a f2 29 43 4d a1 53 3e 43 a1 61 3a 40 41 6c
[ 3204.253894] skb linear:   00000570: 41 3d 3f 43 d2 31 3e 42 71 42 3e 42 6f c0 32 26
[ 3204.261531] skb linear:   00000580: 75 7d 71 1c 70 77 d1 14 6f 72 85 d8 33 3e 89 8f
[ 3204.269167] skb linear:   00000590: 91 11 83 89 42 36 86 8b 89 de 02 11 8a 91 43 25
[ 3204.276804] skb linear:   000005a0: 8c 92 73 4e 89 8e 89 de c1 40 86 8a 61 44 86 8a
[ 3204.284440] skb linear:   000005b0: f1 05 88 8c 89 de 82 24 8e 98 c1 46 8a 90 c1 31
[ 3204.292077] skb linear:   000005c0: 89 8f 8b e0 e2 36 8d 92 d1 62 8a 8f 52 4f 8b 90
[ 3204.299712] skb linear:   000005d0: 89 de 12 24 8c 92 61 18 87 8d 21 41
[ 3204.306307] skb fraglist:
[ 3204.308921] skb len=356 headroom=98 headlen=356 tailroom=1146
[ 3204.308921] mac=(64,14) net=(78,20) trans=98
[ 3204.308921] shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
[ 3204.308921] csum(0xa3fa ip_summed=2 complete_sw=0 valid=0 level=0)
[ 3204.308921] hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=2 iif=2
[ 3204.336838] skb headroom: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.344475] skb headroom: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.352111] skb headroom: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.359748] skb headroom: 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.367383] skb headroom: 00000040: 01 00 5e 01 02 01 aa bb cc dd ee 10 08 00 45 00
[ 3204.375019] skb headroom: 00000050: 01 78 54 20 00 b9 01 11 b1 28 c0 a8 00 c9 ef 01
[ 3204.382655] skb headroom: 00000060: 02 01
[ 3204.386651] skb linear:   00000000: 8b 8f 87 dc a3 0e 8b 90 31 33 87 8c 41 2f 86 8a
[ 3204.394287] skb linear:   00000010: 7f d2 51 23 82 88 c2 1d 7f 84 e1 53 7f 84 43 76
[ 3204.401923] skb linear:   00000020: 33 23 44 47 53 19 44 47 61 65 42 45 41 6e 92 23
[ 3204.409560] skb linear:   00000030: 46 51 52 2c 41 44 61 18 40 43 3f 6c c3 23 42 46
[ 3204.417196] skb linear:   00000040: e1 50 3d 42 23 56 40 42 3f 6e 42 24 45 4f f1 52
[ 3204.424832] skb linear:   00000050: 3c 42 12 5f 40 44 4d 8e 11 17 4e 53 42 08 4e 51
[ 3204.432468] skb linear:   00000060: c1 0c 4d 50 61 ae 23 16 68 74 f2 37 61 65 12 38
[ 3204.440104] skb linear:   00000070: 61 65 6f c0 52 16 71 78 42 0f 70 75 e1 51 6e 72
[ 3204.447740] skb linear:   00000080: 71 c0 c3 15 79 83 42 54 71 77 52 3f 72 77 69 b8
[ 3204.455376] skb linear:   00000090: 93 15 6e 76 01 50 6a 6e 91 3d 67 6b 71 c2 32 15
[ 3204.463012] skb linear:   000000a0: 73 7a d3 4e 74 79 61 0b 71 77 65 b4 a2 15 69 71
[ 3204.470647] skb linear:   000000b0: 82 2a 65 6a 02 0c 66 6a 6f be 62 15 73 7c b1 05
[ 3204.478283] skb linear:   000000c0: 6d 72 11 5b 6e 72 6b ba 22 15 71 7b 12 34 6c 70
[ 3204.485919] skb linear:   000000d0: 32 0d 6a 6d 69 b8 02 15 72 7f 72 56 68 6c 31 57
[ 3204.493555] skb linear:   000000e0: 69 6d 6f c0 b3 14 78 81 31 0e 6d 72 c4 11 73 77
[ 3204.501191] skb linear:   000000f0: 65 b2 72 14 68 76 61 66 62 67 21 4a 64 68 71 c2
[ 3204.508828] skb linear:   00000100: b2 14 7a 87 71 43 70 76 61 37 70 74 61 ae 72 14
[ 3204.516464] skb linear:   00000110: 68 77 a1 0d 5f 63 81 24 5e 62 6f be 43 14 74 7d
[ 3204.524101] skb linear:   00000120: 14 4d 73 78 c1 18 6e 73 61 ac e2 13 64 72 02 14
[ 3204.531737] skb linear:   00000130: 64 72 b1 0c 60 64 6d be 22 14 76 82 01 3a 6a 6f
[ 3204.539373] skb linear:   00000140: 11 25 6b 6f 65 b2 83 13 6b 73 b1 30 61 66 91 1a
[ 3204.547009] skb linear:   00000150: 63 67 3b 66 c2 13 43 51 d1 5c 39 40 f1 5c 39 3f
[ 3204.554645] skb linear:   00000160: 00 00 00 00
[ 3204.559160] skb tailroom: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.566796] skb tailroom: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.574432] skb tailroom: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.582068] skb tailroom: 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.589704] skb tailroom: 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.597341] skb tailroom: 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.604977] skb tailroom: 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.612612] skb tailroom: 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.620249] skb tailroom: 00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.627884] skb tailroom: 00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.635520] skb tailroom: 000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.643156] skb tailroom: 000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.650794] skb tailroom: 000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.658431] skb tailroom: 000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.666068] skb tailroom: 000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.673703] skb tailroom: 000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.681339] skb tailroom: 00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.688976] skb tailroom: 00000110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.696611] skb tailroom: 00000120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.704248] skb tailroom: 00000130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.711884] skb tailroom: 00000140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.719519] skb tailroom: 00000150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.727155] skb tailroom: 00000160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.734791] skb tailroom: 00000170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.742427] skb tailroom: 00000180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.750063] skb tailroom: 00000190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.757699] skb tailroom: 000001a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.765335] skb tailroom: 000001b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.772970] skb tailroom: 000001c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.780606] skb tailroom: 000001d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.788243] skb tailroom: 000001e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.795879] skb tailroom: 000001f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.803514] skb tailroom: 00000200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.811151] skb tailroom: 00000210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.818787] skb tailroom: 00000220: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.826422] skb tailroom: 00000230: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.834058] skb tailroom: 00000240: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.841694] skb tailroom: 00000250: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.849330] skb tailroom: 00000260: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.856966] skb tailroom: 00000270: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.864602] skb tailroom: 00000280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.872238] skb tailroom: 00000290: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.879874] skb tailroom: 000002a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.887510] skb tailroom: 000002b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.895146] skb tailroom: 000002c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.902782] skb tailroom: 000002d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.910419] skb tailroom: 000002e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.918055] skb tailroom: 000002f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.925691] skb tailroom: 00000300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.933328] skb tailroom: 00000310: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.940963] skb tailroom: 00000320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.948599] skb tailroom: 00000330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.956235] skb tailroom: 00000340: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.963872] skb tailroom: 00000350: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.971508] skb tailroom: 00000360: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.979145] skb tailroom: 00000370: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.986780] skb tailroom: 00000380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3204.994415] skb tailroom: 00000390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.002051] skb tailroom: 000003a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.009687] skb tailroom: 000003b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.017322] skb tailroom: 000003c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.024958] skb tailroom: 000003d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.032593] skb tailroom: 000003e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.040228] skb tailroom: 000003f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.047864] skb tailroom: 00000400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.055501] skb tailroom: 00000410: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.063137] skb tailroom: 00000420: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.070773] skb tailroom: 00000430: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.078408] skb tailroom: 00000440: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.086044] skb tailroom: 00000450: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.093680] skb tailroom: 00000460: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3205.101316] skb tailroom: 00000470: 00 00 00 00 00 00 00 00 00 00
[ 3205.107394] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G           O      5.4.40-g66cf445b76 #1
[ 3205.115721] Hardware name: Texas Instruments K3 J721E SoC (DT)
[ 3205.121534] Call trace:
[ 3205.123972]  dump_backtrace+0x0/0x140
[ 3205.127619]  show_stack+0x14/0x20
[ 3205.130921]  dump_stack+0xb4/0xf8
[ 3205.134223]  netdev_rx_csum_fault.part.0+0x44/0x54
[ 3205.138998]  netdev_rx_csum_fault+0x34/0x38
[ 3205.143166]  __skb_checksum_complete+0xf8/0x100
[ 3205.147682]  nf_ip_checksum+0x70/0x140
[ 3205.151421]  nf_checksum+0x40/0x50
[ 3205.154824]  nf_conntrack_udp_packet+0x20c/0x278 [nf_conntrack]
[ 3205.160732]  nf_conntrack_in+0x190/0x7f8 [nf_conntrack]
[ 3205.165947]  ipv4_conntrack_in+0x14/0x20 [nf_conntrack]
[ 3205.171155]  nf_hook_slow+0x50/0xe8
[ 3205.174628]  ip_rcv+0xc0/0xf8
[ 3205.177582]  __netif_receive_skb_one_core+0x50/0x78
[ 3205.182444]  __netif_receive_skb+0x14/0x60
[ 3205.186525]  netif_receive_skb_internal+0x34/0xc0
[ 3205.191213]  napi_gro_receive+0x64/0xc8
[ 3205.195035]  am65_cpsw_nuss_rx_poll+0x194/0x368
[ 3205.199549]  net_rx_action+0x114/0x340
[ 3205.203283]  __do_softirq+0x120/0x23c
[ 3205.206931]  irq_exit+0xb8/0xd8
[ 3205.210059]  __handle_domain_irq+0x64/0xb8
[ 3205.214140]  gic_handle_irq+0x5c/0x148
[ 3205.217873]  el1_irq+0xb8/0x180
[ 3205.221000]  arch_cpu_idle+0x10/0x18
[ 3205.224562]  do_idle+0xc0/0x140
[ 3205.227689]  cpu_startup_entry+0x24/0x40
[ 3205.231597]  rest_init+0xd0/0xdc
[ 3205.234814]  arch_call_rest_init+0xc/0x14
[ 3205.238808]  start_kernel+0x40c/0x438

I would appreciate if someone could look at the log and tell us what could be the problem

Best regards,

Adam

over 5 years ago

0 Vishal Mahaveer over 5 years ago

TI__Mastermind 33390 points

Hi Adam,

Could you provide details of what test/traffic was running when this issue was observed?
And the same test works on EVM?

Regards,
Vishal

0 Vishal Mahaveer over 5 years ago in reply to Vishal Mahaveer

TI__Mastermind 33390 points

There were some updates to the cpsw2g driver post release, I am checking on the minimal list that I can share for testing on your side.

0 Adam Kubiak over 5 years ago in reply to Vishal Mahaveer

Intellectual 920 points

Hi Vishal,

The application running was receiving the data(IPv4, UDP, multicast ip destination address) and then sending out data(also IPv4, UDP, multicast ip destination address).

The issue here might be the configuration of the external switch(multicast flooding) connected to the CPSW2G port but I just want to know if there is some other issue related to the CPSW2G driver.

Regards,

Adam

0 Vishal Mahaveer over 5 years ago in reply to Adam Kubiak

TI__Mastermind 33390 points

Hi Adam,

Could you try below change in drivers/net/ethernet/ti/am65-cpsw-nuss.c file and test?

@@ -751,13 +747,9 @@ static void am65_cpsw_nuss_rx_csum(struct sk_buff *skb, u32 csum_info)
        if ((csum_info & (AM65_CPSW_RX_PSD_IPV6_VALID |
                          AM65_CPSW_RX_PSD_IPV4_VALID)) &&
                          !(csum_info & AM65_CPSW_RX_PSD_CSUM_ERR)) {
-               if (csum_info & AM65_CPSW_RX_PSD_IS_FRAGMENT) {
-                       skb->ip_summed = CHECKSUM_COMPLETE;
-                       skb->csum = csum_unfold(csum_info &
-                                               AM65_CPSW_RX_PSD_CSUM_ADD);
-               } else {
+               /* csum for fragmented packets is unsupported */
+               if (!(csum_info & AM65_CPSW_RX_PSD_IS_FRAGMENT))
                        skb->ip_summed = CHECKSUM_UNNECESSARY;
-               }
        }
 }

Regards,
Vishal

0 Adam Kubiak over 5 years ago in reply to Vishal Mahaveer

Intellectual 920 points

Hi Vishal,

I tested it and I no longer see the kernel traces when running the application.

Does this change fix some bug in the driver or is it like a temporary solution?

Is this change going to be included in the next SDK release?

Regards,

Adam

0 Vishal Mahaveer over 5 years ago in reply to Adam Kubiak

TI__Mastermind 33390 points

Hi Adam,

The change I provided is part of series of kernel change that came in after SDK 7.0 release.
https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/commit/?h=ti-linux-5.4.y&id=25a802fd91d0e782d0d25fe4444c5a55bf1d3d85

These changes will be part of next SDK release.

Regards,
Vishal

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