[Skiboot] [RFC PATCH 2/4] hdata/vpd: Parse additional VINI records

[Oliver O'Halloran]

On Tue, Feb 28, 2017 at 4:14 PM, Ananth N Mavinakayanahalli
<ananth at linux.vnet.ibm.com> wrote:
> While there, use the helper to add individual records.
>
> Signed-off-by: Ananth N Mavinakayanahalli <ananth at linux.vnet.ibm.com>
> ---
>  hdata/vpd.c |   95 ++++++++++++++++++++++++++++++-----------------------------
>  1 file changed, 49 insertions(+), 46 deletions(-)
>
> diff --git a/hdata/vpd.c b/hdata/vpd.c
> index 4c787c6..79f2893 100644
> --- a/hdata/vpd.c
> +++ b/hdata/vpd.c
> @@ -225,54 +225,69 @@ static const struct card_info *card_info_lookup(char *ccin)
>         return NULL;
>  }
>
> +static void vpd_add_property_string(struct dt_node *n, const char *name,
> +                                   const void *vpd, unsigned int sz)
> +{
> +       char *str = zalloc(sz + 1);
> +       if (!str)
> +               return;
> +       memcpy(str, vpd, sz);
> +       dt_add_property_string(n, name, str);
> +       free(str);
> +}
> +
This looks the same as dt_add_property_nstr(). Can we remove this
helper entirely and use that instead?

>  static void vpd_vini_parse(struct dt_node *node,
>                            const void *fruvpd, unsigned int fruvpd_sz)
>  {
>         const void *kw;
>         char *str;
> -       uint8_t kwsz;
> +       uint8_t sz;
>         const struct card_info *cinfo;
>
>         /* FRU Stocking Part Number */
> -       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "FN", &kwsz);
> -       if (kw) {
> -               str = zalloc(kwsz + 1);
> -               if (!str)
> -                       goto no_memory;
> -               memcpy(str, kw, kwsz);
> -               dt_add_property_string(node, "fru-number", str);
> -               free(str);
> -       }
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "FN", &sz);
> +       if (kw)
> +               vpd_add_property_string(node, "fru-number", kw, sz);
>
>         /* Serial Number */
> -       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "SN", &kwsz);
> -       if (kw) {
> -               str = zalloc(kwsz + 1);
> -               if (!str)
> -                       goto no_memory;
> -               memcpy(str, kw, kwsz);
> -               dt_add_property_string(node, "serial-number", str);
> -               free(str);
> -       }
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "SN", &sz);
> +       if (kw)
> +               vpd_add_property_string(node, "serial-number", kw, sz);
>
>         /* Part Number */
> -       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "PN", &kwsz);
> -       if (kw) {
> -               str = zalloc(kwsz + 1);
> -               if (!str)
> -                       goto no_memory;
> -               memcpy(str, kw, kwsz);
> -               dt_add_property_string(node, "part-number", str);
> -               free(str);
> -       }
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "PN", &sz);
> +       if (kw)
> +               vpd_add_property_string(node, "part-number", kw, sz);
> +
> +       /* CCIN Extension */
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "CE", &sz);
> +       if (kw)
> +               vpd_add_property_string(node, "ccin-extension", kw, sz);
> +
> +       /* HW Version info */
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "HW", &sz);
> +       if (kw)
> +               vpd_add_property_string(node, "hw-version", kw, sz);
> +
> +       /* Card type info */
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "CT", &sz);
> +       if (kw)
> +               vpd_add_property_string(node, "card-type", kw, sz);
> +
> +       /* HW characteristics info */
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "B3", &sz);
> +       if (kw)
> +               vpd_add_property_string(node, "hw-characteristics", kw, sz);
>

>         /* Customer Card Identification Number (CCIN) */
> -       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "CC", &kwsz);
> +       kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "CC", &sz);
>         if (kw) {
> -               str = zalloc(kwsz + 1);
> -               if (!str)
> -                       goto no_memory;
> -               memcpy(str, kw, kwsz);
> +               str = zalloc(sz + 1);
> +               if (!str) {
> +                       prerror("VPD: memory allocation failure in VINI parsing\n");
> +                       return;
> +               }
> +               memcpy(str, kw, sz);
>                 dt_add_property_string(node, "ccin", str);

We can probably use the helper here too if we looked up what we just
added to the DT, or if card_info_lookup() was tweaked to use
strncmp().


>                 cinfo = card_info_lookup(str);
>                 if (cinfo) {
> @@ -285,9 +300,8 @@ static void vpd_vini_parse(struct dt_node *node,
>                 }
>                 free(str);
>         }
> +
>         return;
> -no_memory:
> -       prerror("VPD: memory allocation failure in VINI parsing\n");
>  }
>
>  static bool valid_child_entry(const struct slca_entry *entry)
> @@ -486,17 +500,6 @@ def_model:
>         dt_add_property_string(dt_root, "model-name", model_name);
>  }
>
> -static void vpd_add_property_string(struct dt_node *n, const char *name,
> -                                   const void *vpd, unsigned int sz)
> -{
> -       char *str = zalloc(sz + 1);
> -       if (!str)
> -               return;
> -       memcpy(str, vpd, sz);
> -       dt_add_property_string(n, name, str);
> -       free(str);
> -}
> -
>  static void sysvpd_parse_opp(const void *sysvpd, unsigned int sysvpd_sz)
>  {
>         const char *v;
>
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