On Tue, Aug 15, 2017 at 04:23:11PM +0000, David Laight wrote:
> From: Stephen Hemminger
> > Sent: 15 August 2017 17:12
> > On Tue, 15 Aug 2017 16:00:15 +0300
> > Leon Romanovsky <leonro@xxxxxxxxxxxx> wrote:
> >
> > > +
> > > +static const char *dev_caps_to_str(uint32_t idx)
> > > +{
> > > + uint64_t cap = 1 << idx;
> > > +
> > > + switch (cap) {
> > > + case RDMA_DEV_RESIZE_MAX_WR: return "RESIZE_MAX_WR";
> > > + case RDMA_DEV_BAD_PKEY_CNTR: return "BAD_PKEY_CNTR";
> ...
> > > + case RDMA_DEV_RAW_SCATTER_FCS: return "RAW_SCATTER_FCS";
> > > + case RDMA_DEV_RDMA_NETDEV_OPA_VNIC: return "RDMA_NETDEV_OPA_VNIC";
> > > + default: return "UNKNOWN";
> > > + }
> >
> > Could this be a table in future versions?
>
> Potentially you could define the constants using some pre-processor
> 'magic' that would create the table for you.
> Something like (but not compiled):
>
> #define RDMA_DEV_FLAGS(x) \
> x(RESIZE_MAX_WR, 0) \
> x(BAD_PKEY_CNTR, 1) \
> (continue for all the bits)
>
> #define RDMA_DEV_ENUM(name, bit_no) RDMA_DEV_##name = BIT(bit_no),
> enum {RDMA_DEV_FLAGS(RDMA_DEV_ENUM)};
> #undef RDMA_DEV_ENUM
>
> #define RDMA_DEV_NAMES(name, bit_no) [bit_no] = #name,
> static const char rdma_dev_names[] = {RDMA_DEV_FLAGS(RDMA_DEV_NAMES)};
>
David,
How should I handle "uknown" fields without names?
Thanks
> David
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at http://vger.kernel.org/majordomo-info.html
Attachment:
signature.asc
Description: PGP signature
