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Description of problem:
Hi, I am pretty sure my hard drive is supposed to run at udma5. In any
case, hdparm reports the following:

 /dev/hda:
 
 Model=IC35L080AVVA07-0, FwRev=VA4OA52A, SerialNo=VNC402A4L7YHKA
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
 BuffType=DualPortCache, BuffSize=1863kB, MaxMultSect=16, MultSect=16
 CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=160836480
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1:
 
 * signifies the current active mode

so the active mode is missing, but I know dma is enabled.

Anyway, I figure that the dma modes are missing. I decided to
investigate this and found this code:

#ifdef __NEW_HD_DRIVE_ID
                        if (id->hw_config & 0x2000) {
#else /* !__NEW_HD_DRIVE_ID */
                        if (id->word93 & 0x2000) {
#endif /* __NEW_HD_DRIVE_ID */
                                if (id->dma_ultra & 0x0800)    
strcat(umodes,"*");
                                if (id->dma_ultra & 0x0008)    
strcat(umodes,"udma3 ");
                                if (id->dma_ultra & 0x1000)    
strcat(umodes,"*");
                                if (id->dma_ultra & 0x0010)    
strcat(umodes,"udma4 ");
                                if (id->dma_ultra & 0x2000)    
strcat(umodes,"*");
                                if (id->dma_ultra & 0x0020)    
strcat(umodes,"udma5 ");
                                if (id->dma_ultra & 0x4000)    
strcat(umodes,"*");
                                if (id->dma_ultra & 0x0040)    
strcat(umodes,"udma6 ");
                                if (id->dma_ultra & 0x8000)    
strcat(umodes,"*");
                                if (id->dma_ultra & 0x0080)    
strcat(umodes,"udma7 ");
                        }

Some prints later I established that this:
  if (id->hw_config & 0x2000)
is false and my hw_config is: HWCONFIG: 0x403b

The ATA 6 Spec rev. 1b says:

Identify Device Information -> Word 93 -> hw_config:
Bit 13: 1: Device Detected CBLID above Vih
        0: Device Detected CBLID below Vil

so what's the problem?






Version-Release number of selected component (if applicable):
hdparm-5.5-1

How reproducible:
Always

Steps to Reproduce:
1. See Summary

    

Additional info: