Tim Yamin-2 wrote: > > On Wed, Aug 13, 2008 at 7:11 AM, Grant Likely <[EMAIL PROTECTED]> > wrote: >> Sounds good to me. You will get more testers that way. I can pick it >> up for -next if everything else looks good. > > Here are the new patches; tested against 2.6.27-rc3. > > Thanks, > > Tim >
I have been trying this patch against 2.6.26.3 on our own MPC5200B based board. I am using a seagate ST980815A. The drive mounts O.K, and I can transfer small files, but during large transfers there is the following problem. ..... ## Booting kernel from Legacy Image at 00500000 ... Image Name: Linux-2.6.26.3 Created: 2008-09-05 17:01:31 UTC Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1409558 Bytes = 1.3 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK ## Flattened Device Tree blob at 00400000 Booting using the fdt blob at 0x400000 [ 0.000000] Using m9000 machine description [ 0.000000] Linux version 2.6.26.3 ([EMAIL PROTECTED]) (gcc version 4.1.2) #2 Fri Sep 5 13:01:26 EDT 2008 [ 0.000000] Zone PFN ranges: [ 0.000000] DMA 0 -> 32767 [ 0.000000] Normal 32767 -> 32767 ........ [ 0.796907] Driver 'sd' needs updating - please use bus_type methods [ 0.803944] ata: MPC52xx IDE/ATA libata driver [ 0.809300] scsi0 : mpc52xx_ata [ 0.813246] ata1: PATA max UDMA/33 ata_regs 0xf0003a00 irq 135 [ 0.980196] ata1.00: ATA-6: ST980815A, 3.ALC, max UDMA/100 [ 0.985864] ata1.00: 156301488 sectors, multi 0: LBA48 [ 1.004074] ata1.00: configured for UDMA/33 [ 1.009047] scsi 0:0:0:0: Direct-Access ATA ST980815A 3.AL PQ: 0 ANSI: 5 [ 1.018652] sd 0:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB) [ 1.026104] sd 0:0:0:0: [sda] Write Protect is off [ 1.031419] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 1.041235] sd 0:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB) [ 1.048681] sd 0:0:0:0: [sda] Write Protect is off [ 1.053994] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 1.063308] sda: unknown partition table [ 1.077092] sd 0:0:0:0: [sda] Attached SCSI disk ....... -sh-2.05b# -sh-2.05b# cp test.txt > /mnt/hd/writetest -sh-2.05b# cp test2.txt > /mnt/hd/writetest -sh-2.05b# cp -R /test /mnt/hd/writetest [ 170.239726] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 170.247020] ata1.00: cmd ca/00:18:30:00:00/00:00:00:00:00/e0 tag 0 dma 12288 out [ 170.247033] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 170.262180] ata1.00: status: { DRDY } [ 170.265995] ata1: soft resetting link [ 170.423867] ata1.00: revalidation failed (errno=-2) [ 170.428902] ata1: failed to recover some devices, retrying in 5 secs [ 175.435694] ata1: soft resetting link [ 175.591873] ata1.00: revalidation failed (errno=-2) [ 175.596909] ata1: failed to recover some devices, retrying in 5 secs [ 180.603697] ata1: soft resetting link [ 180.759873] ata1.00: revalidation failed (errno=-2) [ 180.764907] ata1.00: disabled [ 181.271725] ata1: soft resetting link [ 181.427741] ata1: EH complete [ 181.430856] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.437358] end_request: I/O error, dev sda, sector 48 [ 181.442652] Buffer I/O error on device sda, logical block 6 [ 181.448386] lost page write due to I/O error on sda [ 181.453429] Buffer I/O error on device sda, logical block 7 [ 181.459165] lost page write due to I/O error on sda [ 181.464205] Buffer I/O error on device sda, logical block 8 [ 181.469939] lost page write due to I/O error on sda [ 181.475076] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.481580] end_request: I/O error, dev sda, sector 8 [ 181.486782] Buffer I/O error on device sda, logical block 1 [ 181.492515] lost page write due to I/O error on sda [ 181.497653] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.504158] end_request: I/O error, dev sda, sector 0 [ 181.509361] Buffer I/O error on device sda, logical block 0 [ 181.515091] lost page write due to I/O error on sda [ 181.520252] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.526762] end_request: I/O error, dev sda, sector 180232 [ 181.532441] Buffer I/O error on device sda, logical block 22540 [ 181.538534] lost page write due to I/O error on sda [ 181.543784] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.550259] end_request: I/O error, dev sda, sector 180328 [ 181.556223] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.562707] end_request: I/O error, dev sda, sector 181352 [ 181.568659] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.575144] end_request: I/O error, dev sda, sector 182376 [ 181.581094] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.587579] end_request: I/O error, dev sda, sector 183400 [ 181.593483] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 181.599997] end_request: I/O error, dev sda, sector 184424 [ 185.268091] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 185.274573] end_request: I/O error, dev sda, sector 180224 [ 185.280329] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 185.286803] end_request: I/O error, dev sda, sector 64 [ 185.292100] Buffer I/O error on device sda, logical block 8 [ 185.297830] lost page write due to I/O error on sda [ 185.302957] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 185.309462] end_request: I/O error, dev sda, sector 48 [ 185.314756] Buffer I/O error on device sda, logical block 6 [ 185.320493] lost page write due to I/O error on sda [ 185.325593] sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00 [ 185.332095] end_request: I/O error, dev sda, sector 0 [ 185.337299] Buffer I/O error on device sda, logical block 0 [ 185.343028] lost page write due to I/O error on sda [ 185.348067] Buffer I/O error on device sda, logical block 1 [ 185.353805] lost page write due to I/O error on sda With PATA_MPC52xx_DMA not set, it works fine. To help eliminate our hardware, I also tried this on a lite5200b development board, and had the same results. I also tried this with a compact flash card, and then the problem occurs, but it happens during bootup. I can't be certain my cf card works with DMA though, as I don't have anything else handy to test it with. I do have a driver which communicates with an FPGA using the LocalPlus bus, but for the purpose of testing I don't have it installed, and the FPGA I/O is tristated. I recall reading somewhere that the lite5200B board had some problem with IDE signal integrity when using a regular IDE cable, so I used an ultra-IDE cable with the same results. On our own hardware, there is no cable as the drive mounts directly to a connector on our board within ~3" of the processor. Any thoughts..... Thanks, -Jeff -- View this message in context: http://www.nabble.com/-PATCH-%3A--MPC5200--Add-ATA-DMA-support-tp17880454p19336474.html Sent from the linuxppc-dev mailing list archive at Nabble.com. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev