> +static bool ufshpb_test_ppn_dirty(struct ufshpb_lu *hpb, int rgn_idx,
> + int srgn_idx, int srgn_offset, int cnt)
> +{
> + struct ufshpb_region *rgn;
> + struct ufshpb_subregion *srgn;
> + int bitmap_len = hpb->entries_per_srgn;
> + int
On 2021-02-09 22:21, Bean Huo wrote:
On Tue, 2021-02-09 at 13:25 +, Avri Altman wrote:
>
>
> > > > + put_unaligned_be64(ppn, [6]);
> > >
> > > You are assuming the HPB entries read out by "HPB Read Buffer"
> > > cmd
> > > are
> > > in Little
> > > Endian, which is why you are using
On Tue, 2021-02-09 at 13:25 +, Avri Altman wrote:
> >
> >
> > > > > + put_unaligned_be64(ppn, [6]);
> > > >
> > > > You are assuming the HPB entries read out by "HPB Read Buffer"
> > > > cmd
> > > > are
> > > > in Little
> > > > Endian, which is why you are using put_unaligned_be64
>
>
> > > > + put_unaligned_be64(ppn, [6]);
> > >
> > > You are assuming the HPB entries read out by "HPB Read Buffer" cmd
> > > are
> > > in Little
> > > Endian, which is why you are using put_unaligned_be64 here. However,
> > > this assumption
> > > is not right for all the other flash
On 2021-02-08 16:16, Bean Huo wrote:
On Fri, 2021-02-05 at 11:29 +0800, Can Guo wrote:
> + return ppn_table[offset];
> +}
> +
> +static void
> +ufshpb_get_pos_from_lpn(struct ufshpb_lu *hpb, unsigned long lpn,
> int
> *rgn_idx,
> + int *srgn_idx, int *offset)
> +{
> +
On Fri, 2021-02-05 at 11:29 +0800, Can Guo wrote:
> > + return ppn_table[offset];
> > +}
> > +
> > +static void
> > +ufshpb_get_pos_from_lpn(struct ufshpb_lu *hpb, unsigned long lpn,
> > int
> > *rgn_idx,
> > + int *srgn_idx, int *offset)
> > +{
> > + int rgn_offset;
>
On Sun, 2021-02-07 at 15:36 +0800, Can Guo wrote:
> >
> > Thanks, I tested Daejun's patchset before, it is also ok (I don't
> > know
> > which version patchset). maybe we can keep current implementation
> > as
> > default, then if there is conflict, and submit the quirk.
> >
>
> Yeah, you've
On 2021-02-05 23:08, Bean Huo wrote:
On Fri, 2021-02-05 at 14:06 +, Avri Altman wrote:
> > > + put_unaligned_be64(ppn, [6]);
> >
> > You are assuming the HPB entries read out by "HPB Read Buffer"
> > cmd
> > are
> > in Little
> > Endian, which is why you are using put_unaligned_be64
On Fri, 2021-02-05 at 14:06 +, Avri Altman wrote:
> > > > + put_unaligned_be64(ppn, [6]);
> > >
> > > You are assuming the HPB entries read out by "HPB Read Buffer"
> > > cmd
> > > are
> > > in Little
> > > Endian, which is why you are using put_unaligned_be64 here.
> > > However,
> > >
> > > + put_unaligned_be64(ppn, [6]);
> >
> > You are assuming the HPB entries read out by "HPB Read Buffer" cmd
> > are
> > in Little
> > Endian, which is why you are using put_unaligned_be64 here. However,
> > this assumption
> > is not right for all the other flash vendors - HPB entries
On Fri, 2021-02-05 at 11:29 +0800, Can Guo wrote:
> > + *rgn_idx = lpn >> hpb->entries_per_rgn_shift;
> > + rgn_offset = lpn & hpb->entries_per_rgn_mask;
> > + *srgn_idx = rgn_offset >> hpb->entries_per_srgn_shift;
> > + *offset = rgn_offset & hpb->entries_per_srgn_mask;
> > +}
> >
On 2021-01-29 13:30, Daejun Park wrote:
This patch changes the read I/O to the HPB read I/O.
If the logical address of the read I/O belongs to active sub-region,
the
HPB driver modifies the read I/O command to HPB read. It modifies the
UPIU
command of UFS instead of modifying the existing
This patch changes the read I/O to the HPB read I/O.
If the logical address of the read I/O belongs to active sub-region, the
HPB driver modifies the read I/O command to HPB read. It modifies the UPIU
command of UFS instead of modifying the existing SCSI command.
In the HPB version 1.0, the
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