diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2017-04-04 16:12:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-05 10:49:12 -0700 |
| commit | 85eb97dd2f073e72784505e51b048171ab9bda61 (patch) | |
| tree | 0ff88ce9a70eb4f7a7f054638517c3aca7e75e71 | |
| parent | e890ae8e497a535a8ab692a66f7fc2aee4361728 (diff) | |
| download | linux-85eb97dd2f073e72784505e51b048171ab9bda61.tar.bz2 | |
nfp: add extended error messages
Allow NSP to set option code even when error is reported. This provides
a way for NSP to give user more precise information about why command
failed.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c index 225d07815375..96bb5f6bd87b 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c @@ -97,6 +97,13 @@ enum nfp_nsp_cmd { __MAX_SPCODE, }; +static const struct { + int code; + const char *msg; +} nsp_errors[] = { + { 0, "success" } /* placeholder to avoid warnings */ +}; + struct nfp_nsp { struct nfp_cpp *cpp; struct nfp_resource *res; @@ -149,6 +156,18 @@ void nfp_nsp_config_clear_state(struct nfp_nsp *state) state->idx = 0; } +static void nfp_nsp_print_extended_error(struct nfp_nsp *state, u32 ret_val) +{ + int i; + + if (!ret_val) + return; + + for (i = 0; i < ARRAY_SIZE(nsp_errors); i++) + if (ret_val == nsp_errors[i].code) + nfp_err(state->cpp, "err msg: %s\n", nsp_errors[i].msg); +} + static int nfp_nsp_check(struct nfp_nsp *state) { struct nfp_cpp *cpp = state->cpp; @@ -282,7 +301,7 @@ nfp_nsp_wait_reg(struct nfp_cpp *cpp, u64 *reg, static int nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option, u32 buff_cpp, u64 buff_addr) { - u64 reg, nsp_base, nsp_buffer, nsp_status, nsp_command; + u64 reg, ret_val, nsp_base, nsp_buffer, nsp_status, nsp_command; struct nfp_cpp *cpp = state->cpp; u32 nsp_cpp; int err; @@ -335,18 +354,20 @@ static int nfp_nsp_command(struct nfp_nsp *state, u16 code, u32 option, return err; } + err = nfp_cpp_readq(cpp, nsp_cpp, nsp_command, &ret_val); + if (err < 0) + return err; + ret_val = FIELD_GET(NSP_COMMAND_OPTION, ret_val); + err = FIELD_GET(NSP_STATUS_RESULT, reg); if (err) { - nfp_warn(cpp, "Result (error) code set: %d command: %d\n", - -err, code); + nfp_warn(cpp, "Result (error) code set: %d (%d) command: %d\n", + -err, (int)ret_val, code); + nfp_nsp_print_extended_error(state, ret_val); return -err; } - err = nfp_cpp_readq(cpp, nsp_cpp, nsp_command, ®); - if (err < 0) - return err; - - return FIELD_GET(NSP_COMMAND_OPTION, reg); + return ret_val; } static int nfp_nsp_command_buf(struct nfp_nsp *nsp, u16 code, u32 option, |