On Tue, Apr 24, 2012 at 10:26 AM, Namjae Jeon <linkinjeon@xxxxxxxxx> wrote: > 2012/4/23 Santosh Y <santoshsy@xxxxxxxxx>: >> From: Santosh Yaraganavi <santoshsy@xxxxxxxxx> >> >> UTP Transfer request list base registers UTRLBA and UTRLBAU >> must be assigned, lower-32 and upper-32 bits of UTRLD list >> physical base addresses respectively. >> >> Currently UTRLBAU is being assigned lower-32 bits of UTRLD >> physical base address. This will cause an issue with >> controllers that can support 64-bit addressing. >> >> This patch correctly assigns upper-32 bits of UTRLD physical >> base address to UTRLBAU. > Hi. Santosh. > 0 : 9 bits are reserved in UTRLBA of specification. is it considered also ? > Thanks. > Hi Namjae, During memory allocation for UTRDL, it is made sure that the UTRDL physical base address is aligned to 1K by checking if the address is aligned to PAGE_SIZE. If the address is PAGE_SIZE aligned, then it is aligned to 1K. So we don't have to worry about the first 10 bits while assigning the base address to UTRLBA. -- ~Santosh -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
