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Merge branch 'sfc-next'

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Edward Cree says:

====================
sfc: Bowdlerise PTP MCDI errors

When the NIC doesn't support PTP, probe-time MCDI commands fail in
predictable ways.  Instead of logging cryptic MCDI errors, just log that
PTP isn't supported.

v2: Hopefully stop Thunderbird mangling the patches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-05-13 15:11:52 -04:00
commit 212da1fa60
1 changed files with 22 additions and 12 deletions
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34
drivers/net/ethernet/sfc/ptp.c
View file

@ -389,11 +389,8 @@ size_t efx_ptp_update_stats(struct efx_nic *efx, u64 *stats)
MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0);
rc = efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), NULL);
if (rc) {
netif_err(efx, hw, efx->net_dev,
"MC_CMD_PTP_OP_STATUS failed (%d)\n", rc);
if (rc)
memset(outbuf, 0, sizeof(outbuf));
}
efx_nic_update_stats(efx_ptp_stat_desc, PTP_STAT_COUNT,
efx_ptp_stat_mask,
stats, _MCDI_PTR(outbuf, 0), false);
@ -490,14 +487,20 @@ static int efx_ptp_get_attributes(struct efx_nic *efx)
*/
MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_GET_ATTRIBUTES);
MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0);
rc = efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &out_len);
if (rc == 0)
rc = efx_mcdi_rpc_quiet(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &out_len);
if (rc == 0) {
fmt = MCDI_DWORD(outbuf, PTP_OUT_GET_ATTRIBUTES_TIME_FORMAT);
else if (rc == -EINVAL)
} else if (rc == -EINVAL) {
fmt = MC_CMD_PTP_OUT_GET_ATTRIBUTES_SECONDS_NANOSECONDS;
else
} else if (rc == -EPERM) {
netif_info(efx, probe, efx->net_dev, "no PTP support\n");
return rc;
} else {
efx_mcdi_display_error(efx, MC_CMD_PTP, sizeof(inbuf),
outbuf, sizeof(outbuf), rc);
return rc;
}
if (fmt == MC_CMD_PTP_OUT_GET_ATTRIBUTES_SECONDS_27FRACTION) {
ptp->ns_to_nic_time = efx_ptp_ns_to_s27;
@ -541,8 +544,8 @@ static int efx_ptp_get_timestamp_corrections(struct efx_nic *efx)
MC_CMD_PTP_OP_GET_TIMESTAMP_CORRECTIONS);
MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0);
rc = efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), NULL);
rc = efx_mcdi_rpc_quiet(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), NULL);
if (rc == 0) {
efx->ptp_data->ts_corrections.tx = MCDI_DWORD(outbuf,
PTP_OUT_GET_TIMESTAMP_CORRECTIONS_TRANSMIT);
@ -558,6 +561,8 @@ static int efx_ptp_get_timestamp_corrections(struct efx_nic *efx)
efx->ptp_data->ts_corrections.pps_out = 0;
efx->ptp_data->ts_corrections.pps_in = 0;
} else {
efx_mcdi_display_error(efx, MC_CMD_PTP, sizeof(inbuf), outbuf,
sizeof(outbuf), rc);
return rc;
}
@ -604,7 +609,12 @@ static int efx_ptp_disable(struct efx_nic *efx)
rc = efx_mcdi_rpc_quiet(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), NULL);
rc = (rc == -EALREADY) ? 0 : rc;
if (rc)
/* If we get ENOSYS, the NIC doesn't support PTP, and thus this function
* should only have been called during probe.
*/
if (rc == -ENOSYS || rc == -EPERM)
netif_info(efx, probe, efx->net_dev, "no PTP support\n");
else if (rc)
efx_mcdi_display_error(efx, MC_CMD_PTP,
MC_CMD_PTP_IN_DISABLE_LEN,
outbuf, sizeof(outbuf), rc);