diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c index 9eb7b5a91bb1..bf593a6b26a1 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c @@ -90,6 +90,8 @@ #define NFP_FW_LOAD_RET_MAJOR GENMASK(15, 8) #define NFP_FW_LOAD_RET_MINOR GENMASK(23, 16) +#define NFP_HWINFO_LOOKUP_SIZE GENMASK(11, 0) + enum nfp_nsp_cmd { SPCODE_NOOP = 0, /* No operation */ SPCODE_SOFT_RESET = 1, /* Soft reset the NFP */ @@ -104,6 +106,7 @@ enum nfp_nsp_cmd { SPCODE_NSP_SENSORS = 12, /* Read NSP sensor(s) */ SPCODE_NSP_IDENTIFY = 13, /* Read NSP version */ SPCODE_FW_STORED = 16, /* If no FW loaded, load flash app FW */ + SPCODE_HWINFO_LOOKUP = 17, /* Lookup HWinfo with overwrites etc. */ }; static const struct { @@ -703,3 +706,38 @@ int nfp_nsp_load_stored_fw(struct nfp_nsp *state) nfp_nsp_load_fw_extended_msg(state, ret); return 0; } + +static int +__nfp_nsp_hwinfo_lookup(struct nfp_nsp *state, void *buf, unsigned int size) +{ + struct nfp_nsp_command_buf_arg hwinfo_lookup = { + { + .code = SPCODE_HWINFO_LOOKUP, + .option = size, + }, + .in_buf = buf, + .in_size = size, + .out_buf = buf, + .out_size = size, + }; + + return nfp_nsp_command_buf(state, &hwinfo_lookup); +} + +int nfp_nsp_hwinfo_lookup(struct nfp_nsp *state, void *buf, unsigned int size) +{ + int err; + + size = min_t(u32, size, NFP_HWINFO_LOOKUP_SIZE); + + err = __nfp_nsp_hwinfo_lookup(state, buf, size); + if (err) + return err; + + if (strnlen(buf, size) == size) { + nfp_err(state->cpp, "NSP HWinfo value not NULL-terminated\n"); + return -EINVAL; + } + + return 0; +} |