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 | 52 |
1 files changed, 48 insertions, 4 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c index b4c5dc5f7404..deee91cbf1b2 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c @@ -144,6 +144,8 @@ struct nfp_nsp { * @option: NFP SP Command Argument * @buf: NFP SP Buffer Address * @error_cb: Callback for interpreting option if error occurred + * @error_quiet:Don't print command error/warning. Protocol errors are still + * logged. */ struct nfp_nsp_command_arg { u16 code; @@ -152,6 +154,7 @@ struct nfp_nsp_command_arg { u32 option; u64 buf; void (*error_cb)(struct nfp_nsp *state, u32 ret_val); + bool error_quiet; }; /** @@ -406,8 +409,10 @@ __nfp_nsp_command(struct nfp_nsp *state, const struct nfp_nsp_command_arg *arg) err = FIELD_GET(NSP_STATUS_RESULT, reg); if (err) { - nfp_warn(cpp, "Result (error) code set: %d (%d) command: %d\n", - -err, (int)ret_val, arg->code); + if (!arg->error_quiet) + nfp_warn(cpp, "Result (error) code set: %d (%d) command: %d\n", + -err, (int)ret_val, arg->code); + if (arg->error_cb) arg->error_cb(state, ret_val); else @@ -892,12 +897,14 @@ int nfp_nsp_load_stored_fw(struct nfp_nsp *state) } static int -__nfp_nsp_hwinfo_lookup(struct nfp_nsp *state, void *buf, unsigned int size) +__nfp_nsp_hwinfo_lookup(struct nfp_nsp *state, void *buf, unsigned int size, + bool optional) { struct nfp_nsp_command_buf_arg hwinfo_lookup = { { .code = SPCODE_HWINFO_LOOKUP, .option = size, + .error_quiet = optional, }, .in_buf = buf, .in_size = size, @@ -914,7 +921,7 @@ int nfp_nsp_hwinfo_lookup(struct nfp_nsp *state, void *buf, unsigned int size) size = min_t(u32, size, NFP_HWINFO_LOOKUP_SIZE); - err = __nfp_nsp_hwinfo_lookup(state, buf, size); + err = __nfp_nsp_hwinfo_lookup(state, buf, size, false); if (err) return err; @@ -926,6 +933,43 @@ int nfp_nsp_hwinfo_lookup(struct nfp_nsp *state, void *buf, unsigned int size) return 0; } +int nfp_nsp_hwinfo_lookup_optional(struct nfp_nsp *state, void *buf, + unsigned int size, const char *default_val) +{ + int err; + + /* Ensure that the default value is usable irrespective of whether + * it is actually going to be used. + */ + if (strnlen(default_val, size) == size) + return -EINVAL; + + if (!nfp_nsp_has_hwinfo_lookup(state)) { + strcpy(buf, default_val); + return 0; + } + + size = min_t(u32, size, NFP_HWINFO_LOOKUP_SIZE); + + err = __nfp_nsp_hwinfo_lookup(state, buf, size, true); + if (err) { + if (err == -ENOENT) { + strcpy(buf, default_val); + return 0; + } + + nfp_err(state->cpp, "NSP HWinfo lookup failed: %d\n", err); + return err; + } + + if (strnlen(buf, size) == size) { + nfp_err(state->cpp, "NSP HWinfo value not NULL-terminated\n"); + return -EINVAL; + } + + return 0; +} + int nfp_nsp_fw_loaded(struct nfp_nsp *state) { const struct nfp_nsp_command_arg arg = { |