(Resend with correct address for linux-arm list; with apologies.)
Starting with kernel 2.6.26 I've noticed that the harddisk (HDD) led on my
QNAP TS-109 (which has a Marvel SATA controller as platform device) no
longer flashes when there is disk activity. Instead it will just
stay "on" all the time. The led worked fine with 2.6.25.
I have bisected this to the following series of commits, which are all
libata or sata_mv changes:
9363c3825ea9ad7..094e50b2f74146d8ee
Further bisection is not possible because between those commits the
harddisk is not recognized at all.
Lennert Buytenhek suggested to try disabling NCQ, and that does indeed
make a difference.
After booting the system I did 'echo 1 >/sys/block/sdX/device/queue_depth'
and after that the HDD led showed disk activity again.
After enabling NCQ again ('echo 31 >/sys/...'), the led again becomes
unresponsive and just stays on.
Attached a diff between sata_mv hardware registers between 2.6.25 and
2.6.26 obtained using a patch provided by Mark Lord. (For some reason
"Host" and "ATA Shadow" regs were not available on 2.6.25.)
Cheers,
FJP
--- qnap_mv0_2.6.25.regs 2008-08-11 20:13:14.000000000 +0200
+++ qnap_mv0.regs 2008-08-11 19:08:18.000000000 +0200
@@ -1,102 +1,106 @@
CRPBs:
- 0: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=52630
- 1: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=54883
- 2: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=57132
- 3: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=59382
- 4: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=61878
- 5: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=64515
- 6: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=1121
- 7: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=3279
- 8: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=5368
- 9: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=7277
- 10: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=9196
- 11: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=11005
- 12: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=12797
- 13: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=14946
- 14: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=16923
- 15: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=18722
- 16: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=20525
- 17: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=30791
- 18: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=11866
- 19: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=56565
- 20: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=64129
- 21: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=4382
- 22: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=52366
- 23: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=28236
-=24: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=30786
- 25: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=33358
- 26: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=35931
- 27: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=38729
- 28: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=41622
- 29: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=44619
- 30: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=47195
- 31: tag=0 ioid=0 estat=0x00 dstat=0x50 tstmp=49739
+ 0: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=54641
+ 1: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=55675
+ 2: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=62732
+ 3: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=3073
+ 4: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=8681
+ 5: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=9721
+ 6: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=10762
+ 7: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=17302
+ 8: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=23001
+ 9: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=52336
+ 10: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=53359
+ 11: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=56477
+ 12: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=37642
+ 13: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=38704
+ 14: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=39764
+ 15: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=46417
+ 16: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=52200
+ 17: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=32877
+ 18: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=62100
+ 19: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=1606
+ 20: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=34537
+ 21: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=35359
+ 22: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=36419
+ 23: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=51224
+ 24: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=58938
+=25: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=10808
+ 26: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=11848
+ 27: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=12877
+ 28: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=22037
+ 29: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=28404
+ 30: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=26248
+ 31: tag=0 ioid=0 estat=0x00 dstat=0x40 tstmp=53609
CRQBs:
- 0: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 1: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 2: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 3: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 4: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 5: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 6: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 7: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 8: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 9: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 10: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 11: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 12: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 13: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 14: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 15: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 16: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 17: 07d47000 00000000 00000001 00000000 00c80000 ..
- 18: 07d47000 00000000 00000001 00000000 00c80000 ..
- 19: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 20: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 21: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 22: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 23: 07d47000 00000000 00000001 00000000 00c80000 ..
- 24: 07d47000 00000000 00000001 00000000 00c80000 ..
-=25: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 26: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 27: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 28: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 29: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 30: 07d47000 00000000 00000000 00000000 00ca0000 ..
- 31: 07d47000 00000000 00000000 00000000 00ca0000 ..
+ 0: 07d59000 00000000 00020002 00000000 08610000 ..
+ 1: 07d04000 00000000 00040004 00000000 08610000 ..
+ 2: 07d58000 00000000 00000000 00000000 18610000 ..
+ 3: 07d58000 00000000 00000000 00000000 08610000 ..
+ 4: 07d58000 00000000 00000000 00000000 08610000 ..
+ 5: 07d59000 00000000 00020002 00000000 08610000 ..
+ 6: 07d04000 00000000 00040004 00000000 08610000 ..
+ 7: 07d58000 00000000 00000000 00000000 10610000 ..
+ 8: 07d58000 00000000 00000000 00000000 08610000 ..
+ 9: 07d58000 00000000 00000000 00000000 10610000 ..
+ 10: 07d59000 00000000 00020002 00000000 08610000 ..
+ 11: 07d58000 00000000 00000000 00000000 08610000 ..
+ 12: 07d58000 00000000 00000000 00000000 08610000 ..
+ 13: 07d59000 00000000 00020002 00000000 08610000 ..
+ 14: 07d04000 00000000 00040004 00000000 08610000 ..
+ 15: 07d58000 00000000 00000000 00000000 10610000 ..
+ 16: 07d58000 00000000 00000000 00000000 08610000 ..
+ 17: 07d58000 00000000 00000000 00000000 08610000 ..
+ 18: 07d58000 00000000 00000001 00000000 08600000 ..
+ 19: 07d58000 00000000 00000001 00000000 08600000 ..
+ 20: 07d58000 00000000 00000001 00000000 08600000 ..
+ 21: 07d58000 00000000 00000000 00000000 08610000 ..
+ 22: 07d59000 00000000 00020002 00000000 08610000 ..
+ 23: 07d58000 00000000 00000000 00000000 10610000 ..
+ 24: 07d58000 00000000 00000000 00000000 08610000 ..
+=25: 07d58000 00000000 00000000 00000000 08610000 ..
+ 26: 07d59000 00000000 00020002 00000000 08610000 ..
+ 27: 07d04000 00000000 00040004 00000000 08610000 ..
+ 28: 07d58000 00000000 00000000 00000000 18610000 ..
+ 29: 07d58000 00000000 00000000 00000000 08610000 ..
+ 30: 07d58000 00000000 00000001 00000000 08600000 ..
+ 31: 07d58000 00000000 00000000 00000000 08610000 ..
EDMA regs:
-000: Config: 0000001f Qlen=32 BSz=128 WBlen=256
-004: Timer: 3824da8b
+000: Config: 0000003f NCQ Qlen=32 BSz=128 WBlen=256
+004: Timer: d9ac2965
008: IErrCau: 00000000
00c: IErrMsk: fc1e9fff pDAT pPRD DevErr DevDis DevCon SerrInt bit6 SelfDis TrInt pCQRB pCRPB pInt IORdy cRx2 dRx0 dRx1 dRx2 dRx3 dTx0 dTx1 dTx2 dTx3 dTx4 Proto
010: RqBaseHi: 00000000
-014: RqInPtr: 07c91320 Index=25 Base=0x7c91
+014: RqInPtr: 07d56320 Index=25 Base=0x7d56
018: RqOutPtr: 00000320 Index=25 Base=0x0
01c: RsBaseHi: 00000000
020: RsInPtr: 000000c8 Index=25 Base=0x0
-024: RsOutPtr: 07d460c8 Index=25 Base=0x7d460
+024: RsOutPtr: 07d570c8 Index=25 Base=0x7d570
028: Command: 00000001 Active
02c: TestCtrl: 00000000
-030: Status: 000000e0 Tag=0 D2M cEmpty Idle State=0x0 IOID=0
+030: Status: 000000c0 Tag=0 M2D cEmpty Idle State=0x0 IOID=0
034: IORdyTO: 000000bc
038: Arbiter: 00032190
040: DelayThr: 00000000
060: HaltCond: fc1e0e1f
-064: IErrCau2: 00000000
+064: IErrCau2: 00000004
068: IErrMsk2: 00000000
06c: Reserved: ff000000
080: FsmDctl: 0000ffff
084: FsmDstat: 00000000
088: BusyStat: 00000000
08c: TcqStat: 00000000
-090: RxFISprs: 00504034
+090: RxFISprs: 015040a1
094: Ncq0Done: 00000000
098: Ncq1Done: 00000000
09c: Ncq2Done: 00000000
0a0: Ncq3Done: 00000000
-0a8: DsMemory: 10100001
+0a8: DsMemory: 10100000
+
+HOST regs:
+1d60: MainCaus: 00000000
+1d64: MainMask: 00000000
SATA regs:
300: SStatus: 00000113 DET=Dev+Phy SPD=0x1 IPM=0x1
@@ -104,26 +108,37 @@
340: SErrMsk: 019c0000 W B D S T
308: SControl: 00000300 DET=Off IPM=0x3
30c: LTMode: 010300b0
-310: PhyMod3: aaaac02a
+310: PhyMod3: aaaac022
314: PhyMod4: 00010005
32c: PhyMod1: 40555aa0
330: PhyMod2: 3cf5944f
334: BistCtl: 00800000
338: BistDW1: 00000000
33c: BistDW2: 00000000
-050: IFCfg: 009b7095 RefClk=25Mhz RefClkDiv=2 FeedDiv=1 Gen2iEn bits_12-23=0x9b7
+050: IFCfg: 009b1095 RefClk=25Mhz RefClkDiv=2 FeedDiv=1 Gen2iEn bits_12-23=0x9b1
344: IFCtl: 00000000 PmPortTx=0
348: IFTstCtl: 00000000
-34c: IFStatus: 00404034 FIStypeRx=0x34 PMportRx=0 MBistRdy DevPres LinkRdy
+34c: IFStatus: 004040a1 FIStypeRx=0xa1 PMportRx=0 MBistRdy DevPres LinkRdy
35c: VUnique: 00000000
360: FISCfg: 00000000
364: FISiCaus: 00008000
368: FISiMask: 00000a00
-370: RxFISDW0: 00504034
-374: RxFISDW1: e6bc2800
-378: RxFISDW2: 00000006
+370: RxFISDW0: 005040a1
+374: RxFISDW1: 00000001
+378: RxFISDW2: 00000000
37c: RxFISDW3: 00000000
380: RxFISDW4: 00000000
-384: RxFISDW5: 00000000
+384: RxFISDW5: 00001000
388: RxFISDW6: 00000000
+ATA Shadow regs:
+100: Data: 16a516a5
+104: Error: 00000000
+108: NSect: 08080808
+10c: LbaL: c8c8c8c8
+110: LbaM: 3e3e3e3e
+114: LbaH: 2a2a2a2a
+118: Dev: 40404040
+11c: Stat: 50505050
+120: AltStat: 50505050
+
