diff options
| author | Daniel Pieczko <dpieczko@solarflare.com> | 2015-06-02 12:39:49 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-02 21:57:29 +0200 |
| commit | 6dd4859b281700a163caec8ae7826c2558290127 (patch) | |
| tree | 6a3ee1aaa9d15d246188886f6da3ac395cd7a31f /drivers/net/ethernet/sfc/ef10.c | |
| parent | sfc: update netdevice statistics to use vadaptor stats (diff) | |
| download | linux-6dd4859b281700a163caec8ae7826c2558290127.tar.xz linux-6dd4859b281700a163caec8ae7826c2558290127.zip | |
sfc: suppress ENOENT error messages from MC_CMD_MAC_STATS
MC_CMD_MAC_STATS can be called on a function before a
vadaptor has been created, as the kernel can call into this
through ndo_get_stats/ndo_get_stats64.
If MC_CMD_MAC_STATS is called before the DMA queues have been
setup, so that a vadaptor has not been created yet, firmware
will return ENOENT. This is expected, so suppress the MCDI
error message in this case.
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/ef10.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index b880d984a649..a79a24f94123 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -1316,11 +1316,16 @@ static int efx_ef10_try_update_nic_stats_vf(struct efx_nic *efx) MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, EVB_PORT_ID_ASSIGNED); spin_unlock_bh(&efx->stats_lock); - rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), NULL, - 0, NULL); + rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), + NULL, 0, NULL); spin_lock_bh(&efx->stats_lock); - if (rc) + if (rc) { + /* Expect ENOENT if DMA queues have not been set up */ + if (rc != -ENOENT || atomic_read(&efx->active_queues)) + efx_mcdi_display_error(efx, MC_CMD_MAC_STATS, + sizeof(inbuf), NULL, 0, rc); goto out; + } generation_end = dma_stats[MC_CMD_MAC_GENERATION_END]; if (generation_end == EFX_MC_STATS_GENERATION_INVALID) { |