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
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