On Friday 22 February 2013 18:58:07 Tijs Van Buggenhout wrote: > On Thursday 21 February 2013 18:40:20 Tijs Van Buggenhout wrote: > > On Thursday 21 February 2013 16:13:07 Hauke Mehrtens wrote: > > > On 02/20/2013 02:46 PM, Cezary Jackiewicz wrote: > > > > Dnia 2013-02-20, o godz. 14:11:53 > > > > > > > > Hauke Mehrtens <ha...@hauke-m.de> napisa?(a): > > > >> On my e3200 Ethernet works with the default config. Are there more > > > >> problems discussed in this tread? > > > > > > > > On my e3200 also ethernet seems to work, but often hangs up with: > > > > > > > > [ 121.980000] bgmac bcma0:1: Hardware reported transmission for empty > > TX > > > > > ring slot 120! End of ring: 0 [ 121.988000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 121! End of ring: 0 [ > > > > 121.996000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 122! End of ring: 0 [ 122.008000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 123! End of ring: 0 [ > > > > 122.016000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 124! End of ring: 0 [ 122.024000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 125! End of ring: 0 [ > > > > 122.036000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 126! End of ring: 0 [ 122.044000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 127! End of ring: 0 [ > > > > 122.052000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 0! End of ring: 0 [ 122.064000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 1! End of ring: 0 [ > > > > 122.072000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 2! End of ring: 0 [ 122.080000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 3! End of ring: 0 [ > > > > 122.088000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 4! End of ring: 0 [ 122.100000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 5! End of ring: 0 [ > > > > 122.108000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 6! End of ring: 0 [ 122.116000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 7! End of ring: 0 [ > > > > 122.128000] bgmac bcma0:1: Hardware reported transmission for empty TX > > > > ring slot 8! End of ring: 0 [ 122.136000] bgmac bcma0:1: Hardware > > > > reported transmission for empty TX ring slot 9! End of ring: 0 > > > > > > > > etc. > > > > > > I have seen the same problem with my e3200. When this happens I see > > > ~17MByte/s of garbage traffic on the NIC of my desktop connected to this > > > devices. It looks like it sends out old packages or parts of it in an > > > endless loop. Most of them did not contained a valid Ethernet header but > > > some contained the OpenWrt logo, where I expected an Ethernet or IP > > > header. ;-) > > > > > > _______________________________________________ > > > openwrt-devel mailing list > > > openwrt-devel@lists.openwrt.org > > > https://lists.openwrt.org/mailman/listinfo/openwrt-devel > > > > I notice the same behaviour here. I see this happen regularly, when > > booting > > the device, without network cables plugged in, or no network traffic being > received. By default, an udhcp client is run on internet interface, which > sends out packets, but no answer is (ever) returned. > > > After about 300 seconds, the driver will start reporting these messages, > > after a while the system reboots. > > > I made a tcpdump on the wan port, which shows only udp dhcp requests being > > sent. At the moment the driver starts reporting, I can see two packets being > echoed from the past (dhcp requests hold the 'seconds elapsed' field, which > normally only augments). > > > Packets sent out, with increasing seconds elapsed: > > > > 17:53:54.097432 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.q.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:53:57.098021 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.t.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:00.101515 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.w.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102124 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > The following two packets are from the past > > > > 17:54:03.102145 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gn.....1.Us.................... > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102152 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gn.....1.Us. .................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > After this, the latest packet, with highest seconds elapsed field is being > > repeated indefinately at a high rate: > > 17:54:03.102203 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102232 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102266 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102299 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102333 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102427 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > 17:54:03.102434 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, > > Request from 20:aa:4b:21:19:73 (oui Unknown), length 351 > > > E..{....@.ys.........D.C.gl.....1.Us.z.................. > > .K!.s....................................................................... > ............................................................................ > .......................................................c.Sc5..9..@7.......*< > .udhcp > 1.19.4..................................................................... > ............ > > On the other hand, I can stress the device for hours with high network > > load, > without seeing this problem. > > > Regards, > > Tijs > > Hi all, > > I tried to debug this some more, and to me it appears as if this is a > problem of unaligned addressing (currently not supported by bgmac). I > derived this from adding the following debug code to the driver, comparing > the tx descriptor pointers returned by the hardware to the slot number/id. > > I added some debugging code to the driver, as follows: > > --- build_dir/target-mipsel_uClibc-0.9.33.2/linux- > brcm47xx/linux-3.6.11/drivers/net/ethernet/broadcom/bgmac.c.orig > 2013-02-20 12:41:03.122481212 +0100 > +++ build_dir/target-mipsel_uClibc-0.9.33.2/linux- > brcm47xx/linux-3.6.11/drivers/net/ethernet/broadcom/bgmac.c 2013-02-22 > 17:12:32.840669983 +0100 > @@ -120,6 +120,8 @@ > free_slots = ring->start - ring->end + BGMAC_TX_RING_SLOTS; > else > free_slots = ring->start - ring->end; > + bgmac_warn(bgmac, "free tx slots on ring 0x%0X %d/%u (start %u, end > %u)\n", > + ring->mmio_base, free_slots, ring->num_slots, > ring->start, ring->end); > if (free_slots == 1) { > bgmac_err(bgmac, "TX ring is full, queue should be stopped! > \n"); > netif_stop_queue(net_dev); > @@ -153,8 +155,10 @@ > /* Increase ring->end to point empty slot. We tell hardware the > first * slot it should *not* read. > */ > - if (++ring->end >= BGMAC_TX_RING_SLOTS) > + if (++ring->end >= BGMAC_TX_RING_SLOTS) { > ring->end = 0; > + bgmac_warn(bgmac, "rotate ring end to 0 on ring 0x%0X\n", > ring->mmio_base); > + } > bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_INDEX, > ring->end * sizeof(struct bgmac_dma_desc)); > > @@ -174,13 +178,57 @@ > static void bgmac_dma_tx_free(struct bgmac *bgmac, struct bgmac_dma_ring > *ring) > { > struct device *dma_dev = bgmac->core->dma_dev; > - int empty_slot; > + int empty_slot, empty_slot_orig, empty_slot_based; > + u16 my_empty_slot, my_empty_slot_orig, my_empty_slot_based; > + u32 ptr_base = lower_32_bits( ring->dma_base ); > bool freed = false; > > + if (ring->start == ring->end) { > + bgmac_warn(bgmac, "Ignore dma_tx_free on empty ring\n"); > + return; > + } > + > /* The last slot that hardware didn't consume yet */ > empty_slot = bgmac_read(bgmac, ring->mmio_base + > BGMAC_DMA_TX_STATUS); + empty_slot_orig = empty_slot; > empty_slot &= BGMAC_DMA_TX_STATDPTR; > + empty_slot_based = my_empty_slot; > + empty_slot_based -= ptr_base; > + empty_slot_based &= BGMAC_DMA_TX_STATDPTR; > empty_slot /= sizeof(struct bgmac_dma_desc); > + empty_slot_based /= sizeof(struct bgmac_dma_desc); > + > + my_empty_slot = bgmac_read(bgmac, ring->mmio_base + > BGMAC_DMA_TX_STATUS); > + my_empty_slot_orig = my_empty_slot; > + my_empty_slot &= BGMAC_DMA_TX_STATDPTR; > + my_empty_slot_based = my_empty_slot; > + my_empty_slot_based -= ptr_base; > + my_empty_slot_based &= BGMAC_DMA_TX_STATDPTR; > + my_empty_slot /= sizeof(struct bgmac_dma_desc); > + my_empty_slot_based /= sizeof(struct bgmac_dma_desc); > + > + bgmac_warn(bgmac, "dma_tx_free - ring 0x%0x empty slot reported by > hardware %d, " > + "as id %d base %d, ring id st %u en %u (uns hw %u > id %u base %u)\n", > + ring->mmio_base, empty_slot_orig, empty_slot, > empty_slot_based, > + ring->start, ring->end, > + my_empty_slot_orig, my_empty_slot, > my_empty_slot_based); > + > + if ((ring->start == 0) && (my_empty_slot > ring->end)) { > + bgmac_warn(bgmac, "Bogus TX descriptor pointer %d, start %u, > end %u\n", > + my_empty_slot, ring->start, ring->end); > + } > + > + if ((ring->start == 0) && (empty_slot > ring->end)) { > + bgmac_warn(bgmac, "Bogus TX descriptor pointer %d, start %u, > end %u\n", > + empty_slot, ring->start, ring->end); > + return; > + } > + > + if (empty_slot >= BGMAC_TX_RING_SLOTS) { > + bgmac_warn(bgmac, "Bogus TX descriptor pointer %d, start %u, > end %u\n", > + empty_slot, ring->start, ring->end); > + return; > + } > > while (ring->start != empty_slot) { > struct bgmac_slot_info *slot = &ring->slots[ring->start]; > @@ -1077,6 +1125,7 @@ > struct bgmac *bgmac = netdev_priv(dev_id); > > u32 int_status = bgmac_read(bgmac, BGMAC_INT_STATUS); > + bgmac_warn(bgmac, "bgmac_interrupt - interrupt received 0x%0X, after > mask (0x%0X) 0x%0X\n", int_status, bgmac->int_mask, int_status & bgmac- > >int_mask); > > int_status &= bgmac->int_mask; > > if (!int_status) > > This excerpt of the serial log shows dma_tx_free succeeding, even after ring > "rotation". When you look at the log lines, you'll notice that the last two > numbers of each line (base and id) match each other. Id is the slot id > reported by the hardware that can be freeed, whereas base represents the > same id, but for unaligned addressing (subject to an offset to addr > register, obtained from the lower 32 bits of ring dma_addr). > > [ 390.020000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 124, end 124) > [ 390.028000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 390.036000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536872912, as id 125 base 0, ring id st 124 en 125 (uns hw 2000 > id 125 base 125) > [ 393.056000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 125, end 125) > [ 393.068000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 393.076000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536872928, as id 126 base 0, ring id st 125 en 126 (uns hw 2016 > id 126 base 126) > [ 396.096000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 126, end 126) > [ 396.104000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 396.112000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536872944, as id 127 base 0, ring id st 126 en 127 (uns hw 2032 > id 127 base 127) > [ 399.132000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 127, end 127) > [ 399.144000] bgmac bcma0:1: rotate ring end to 0 on ring 0x200 > [ 399.148000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 399.160000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536870912, as id 0 base 0, ring id st 127 en 0 (uns hw 0 id 0 > base 0) [ 402.180000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 > (start 0, end 0) > [ 402.188000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 402.196000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536870928, as id 1 base 0, ring id st 0 en 1 (uns hw 16 id 1 > base 1) [ 405.216000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 > (start 1, end 1) > [ 405.224000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 405.232000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536870944, as id 2 base 0, ring id st 1 en 2 (uns hw 32 id 2 > base 2) [ 408.252000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 > (start 2, end 2) > [ 408.260000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > > The next log excerpt shows a failing dma_tx_free, reporting errors. Here > you'll notice that the last two numbers id and base do not match at all. > > [ 390.100000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 124, end 124) > [ 390.108000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 390.116000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536872912, as id 125 base 256, ring id st 124 en 125 (uns hw > 2000 id 125 base 381) > [ 393.136000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 125, end 125) > [ 393.148000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 393.156000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536872928, as id 126 base 256, ring id st 125 en 126 (uns hw > 2016 id 126 base 382) > [ 396.176000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 126, end 126) > [ 396.184000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 396.196000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 536872944, as id 127 base 256, ring id st 126 en 127 (uns hw > 2032 id 127 base 383) > [ 399.216000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start > 127, end 127) > [ 399.224000] bgmac bcma0:1: rotate ring end to 0 on ring 0x200 > [ 399.228000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 399.240000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 268439984, as id 283 base 256, ring id st 127 en 0 (uns hw 4528 > id 283 base 27) > [ 399.256000] bgmac bcma0:1: Bogus TX descriptor pointer 283, start 127, > end 0 > [ 399.264000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 399.276000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 268440928, as id 342 base 256, ring id st 127 en 0 (uns hw 5472 > id 342 base 86) > [ 399.292000] bgmac bcma0:1: Bogus TX descriptor pointer 342, start 127, > end 0 > [ 399.296000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 399.308000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 268439712, as id 266 base 256, ring id st 127 en 0 (uns hw 4256 > id 266 base 10) > [ 399.324000] bgmac bcma0:1: Bogus TX descriptor pointer 266, start 127, > end 0 > [ 399.332000] bgmac bcma0:1: bgmac_interrupt - interrupt received > 0x1000000, after mask (0xF01FC00) 0x1000000 > [ 399.344000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported > by hardware 268440608, as id 322 base 256, ring id st 127 en 0 (uns hw 5152 > id 322 base 66) > > Regards, > Tijs > _______________________________________________ > openwrt-devel mailing list > openwrt-devel@lists.openwrt.org > https://lists.openwrt.org/mailman/listinfo/openwrt-devel
Hi, I created a patch to support unaligned dma addressing in bgmac driver, which seems to solve the problem of dma pointer corruption at rotation of the ring.. The following excerpts show how the the new version of the driver supports both cases when id is equal to base, and where id is different from base (this is where the driver failed in the past). Note that base now directly maps on the slot id, where in the previous mail it was id... Where it would have gone ok in the past: [ 391.252000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 124, end 124) [ 391.260000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 391.268000] bgmac bcma0:1: Set ring 0x200 tx index to 0x39527D0 instead of 0x7D0 [ 391.276000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536872912, as id 125 base 125, ring id st 124 en 125 (uns hw 2000 id 125 base 125) [ 394.296000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 125, end 125) [ 394.304000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 394.312000] bgmac bcma0:1: Set ring 0x200 tx index to 0x39527E0 instead of 0x7E0 [ 394.320000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536872928, as id 126 base 126, ring id st 125 en 126 (uns hw 2016 id 126 base 126) [ 397.340000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 126, end 126) [ 397.348000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 397.356000] bgmac bcma0:1: Set ring 0x200 tx index to 0x39527F0 instead of 0x7F0 [ 397.364000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536872944, as id 127 base 127, ring id st 126 en 127 (uns hw 2032 id 127 base 127) [ 400.384000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 127, end 127) [ 400.392000] bgmac bcma0:1: rotate ring end to 0 on ring 0x200 [ 400.396000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 400.408000] bgmac bcma0:1: Set ring 0x200 tx index to 0x3952000 instead of 0x0 [ 400.416000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536870912, as id 0 base 0, ring id st 127 en 0 (uns hw 0 id 0 base 0) [ 403.436000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 0, end 0) [ 403.444000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 403.452000] bgmac bcma0:1: Set ring 0x200 tx index to 0x3952010 instead of 0x10 [ 403.460000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536870928, as id 1 base 1, ring id st 0 en 1 (uns hw 16 id 1 base 1) [ 406.480000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 1, end 1) [ 406.488000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 406.496000] bgmac bcma0:1: Set ring 0x200 tx index to 0x3952020 instead of 0x20 [ 406.504000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536870944, as id 2 base 2, ring id st 1 en 2 (uns hw 32 id 2 base 2) [ 409.524000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 2, end 2) [ 409.532000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 409.540000] bgmac bcma0:1: Set ring 0x200 tx index to 0x3952030 instead of 0x30 [ 409.548000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536870960, as id 3 base 3, ring id st 2 en 3 (uns hw 48 id 3 base 3) Where it would have gone bad in the past (id is different from base): [ 391.220000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 124, end 124) [ 391.228000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 391.236000] bgmac bcma0:1: Set ring 0x200 tx index to 0x24AF7D0 instead of 0x7D0 [ 391.244000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536877008, as id 381 base 125, ring id st 124 en 125 (uns hw 6096 id 381 base 125) [ 394.264000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 125, end 125) [ 394.272000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 394.280000] bgmac bcma0:1: Set ring 0x200 tx index to 0x24AF7E0 instead of 0x7E0 [ 394.288000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536877024, as id 382 base 126, ring id st 125 en 126 (uns hw 6112 id 382 base 126) [ 397.308000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 126, end 126) [ 397.316000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 397.324000] bgmac bcma0:1: Set ring 0x200 tx index to 0x24AF7F0 instead of 0x7F0 [ 397.332000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536877040, as id 383 base 127, ring id st 126 en 127 (uns hw 6128 id 383 base 127) [ 400.352000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 127, end 127) [ 400.360000] bgmac bcma0:1: rotate ring end to 0 on ring 0x200 [ 400.364000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 400.376000] bgmac bcma0:1: Set ring 0x200 tx index to 0x24AF000 instead of 0x0 [ 400.384000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536875008, as id 256 base 0, ring id st 127 en 0 (uns hw 4096 id 256 base 0) [ 403.404000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 0, end 0) [ 403.412000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 403.420000] bgmac bcma0:1: Set ring 0x200 tx index to 0x24AF010 instead of 0x10 [ 403.428000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536875024, as id 257 base 1, ring id st 0 en 1 (uns hw 4112 id 257 base 1) [ 406.448000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 1, end 1) [ 406.456000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 406.464000] bgmac bcma0:1: Set ring 0x200 tx index to 0x24AF020 instead of 0x20 [ 406.472000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536875040, as id 258 base 2, ring id st 1 en 2 (uns hw 4128 id 258 base 2) [ 409.492000] bgmac bcma0:1: free tx slots on ring 0x200 128/128 (start 2, end 2) [ 409.500000] bgmac bcma0:1: bgmac_interrupt - interrupt received 0x1000000, after mask (0xF01FC00) 0x1000000 [ 409.508000] bgmac bcma0:1: Set ring 0x200 tx index to 0x24AF030 instead of 0x30 [ 409.516000] bgmac bcma0:1: dma_tx_free - ring 0x200 empty slot reported by hardware 536875056, as id 259 base 3, ring id st 2 en 3 (uns hw 4144 id 259 base 3) A patch from cleaned up code will follow shortly... Regards, Tijs _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
