diff options
| author | Edward Cree <ecree@solarflare.com> | 2013-05-31 18:36:12 +0100 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2013-12-12 22:06:56 +0000 |
| commit | 1e0b8120b2aef503f480b0e0182d7a7304acfb3d (patch) | |
| tree | 67abe4f3dde3b2669ba7c4f655c3c211aa914120 /drivers/net/ethernet/sfc/ptp.c | |
| parent | 8d13a377b8c2bc20a349b98443bb7e7c5970e991 (diff) | |
| download | linux-1e0b8120b2aef503f480b0e0182d7a7304acfb3d.tar.gz linux-1e0b8120b2aef503f480b0e0182d7a7304acfb3d.tar.bz2 linux-1e0b8120b2aef503f480b0e0182d7a7304acfb3d.zip | |
sfc: Log all unexpected MCDI errors
Split each of efx_mcdi_rpc, efx_mcdi_rpc_finish, and efx_mcdi_rpc_async into
a normal and a _quiet version; made the former log MCDI errors with
netif_err (and include the raw MCDI error code), and the latter never log
them at all. Changed various callers; any where some errors are expected
(but others are not) call the _quiet version and then if necessary log the
MCDI error themselves. Said logging is done by new efx_mcdi_display_error.
Callers of efx_mcdi_rpc*_quiet functions which may want to log the error
need to ensure that their outbuf is big enough to hold an MCDI error; to
this end, they now use MCDI_DECLARE_BUF_OUT_OR_ERR, which always allocates
at least 8 bytes.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/ptp.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ptp.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 34b25864b121..24bd2e3040f8 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -313,6 +313,8 @@ static int efx_phc_enable(struct ptp_clock_info *ptp, static int efx_ptp_enable(struct efx_nic *efx) { MCDI_DECLARE_BUF(inbuf, MC_CMD_PTP_IN_ENABLE_LEN); + MCDI_DECLARE_BUF_OUT_OR_ERR(outbuf, 0); + int rc; MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_ENABLE); MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0); @@ -320,8 +322,14 @@ static int efx_ptp_enable(struct efx_nic *efx) efx->ptp_data->channel->channel); MCDI_SET_DWORD(inbuf, PTP_IN_ENABLE_MODE, efx->ptp_data->mode); - return efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf), - NULL, 0, NULL); + rc = efx_mcdi_rpc_quiet(efx, MC_CMD_PTP, inbuf, sizeof(inbuf), + outbuf, sizeof(outbuf), NULL); + rc = (rc == -EALREADY) ? 0 : rc; + if (rc) + efx_mcdi_display_error(efx, MC_CMD_PTP, + MC_CMD_PTP_IN_ENABLE_LEN, + outbuf, sizeof(outbuf), rc); + return rc; } /* Disable MCDI PTP support. @@ -332,11 +340,19 @@ static int efx_ptp_enable(struct efx_nic *efx) static int efx_ptp_disable(struct efx_nic *efx) { MCDI_DECLARE_BUF(inbuf, MC_CMD_PTP_IN_DISABLE_LEN); + MCDI_DECLARE_BUF_OUT_OR_ERR(outbuf, 0); + int rc; MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_DISABLE); MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0); - return efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf), - NULL, 0, NULL); + rc = efx_mcdi_rpc_quiet(efx, MC_CMD_PTP, inbuf, sizeof(inbuf), + outbuf, sizeof(outbuf), NULL); + rc = (rc == -EALREADY) ? 0 : rc; + if (rc) + efx_mcdi_display_error(efx, MC_CMD_PTP, + MC_CMD_PTP_IN_DISABLE_LEN, + outbuf, sizeof(outbuf), rc); + return rc; } static void efx_ptp_deliver_rx_queue(struct sk_buff_head *q) |