diff options
author | Bert Kenward <bkenward@solarflare.com> | 2017-12-21 09:00:41 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-12-21 15:14:27 -0500 |
commit | 2c0b6ee837dba6034ace78fcc58d2bc4f5d063c1 (patch) | |
tree | 6054998edf5c1ef86ff1b36c3a8100d4086d685e /drivers/net/ethernet/sfc/ef10.c | |
parent | f411b54d6b60f7db97190fa378de4c147fa055c5 (diff) | |
download | linux-2c0b6ee837dba6034ace78fcc58d2bc4f5d063c1.tar.bz2 |
sfc: expose CTPIO stats on NICs that support them
While the Linux driver doesn't use CTPIO ('cut-through programmed I/O'),
other drivers on the same port might, so if we're responsible for
reporting per-port stats we need to include the CTPIO stats.
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: Edward Cree <ecree@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 | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 352ca43a7395..8ae467db9162 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -1649,6 +1649,23 @@ static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = { EF10_DMA_STAT(fec_corrected_symbols_lane1, FEC_CORRECTED_SYMBOLS_LANE1), EF10_DMA_STAT(fec_corrected_symbols_lane2, FEC_CORRECTED_SYMBOLS_LANE2), EF10_DMA_STAT(fec_corrected_symbols_lane3, FEC_CORRECTED_SYMBOLS_LANE3), + EF10_DMA_STAT(ctpio_dmabuf_start, CTPIO_DMABUF_START), + EF10_DMA_STAT(ctpio_vi_busy_fallback, CTPIO_VI_BUSY_FALLBACK), + EF10_DMA_STAT(ctpio_long_write_success, CTPIO_LONG_WRITE_SUCCESS), + EF10_DMA_STAT(ctpio_missing_dbell_fail, CTPIO_MISSING_DBELL_FAIL), + EF10_DMA_STAT(ctpio_overflow_fail, CTPIO_OVERFLOW_FAIL), + EF10_DMA_STAT(ctpio_underflow_fail, CTPIO_UNDERFLOW_FAIL), + EF10_DMA_STAT(ctpio_timeout_fail, CTPIO_TIMEOUT_FAIL), + EF10_DMA_STAT(ctpio_noncontig_wr_fail, CTPIO_NONCONTIG_WR_FAIL), + EF10_DMA_STAT(ctpio_frm_clobber_fail, CTPIO_FRM_CLOBBER_FAIL), + EF10_DMA_STAT(ctpio_invalid_wr_fail, CTPIO_INVALID_WR_FAIL), + EF10_DMA_STAT(ctpio_vi_clobber_fallback, CTPIO_VI_CLOBBER_FALLBACK), + EF10_DMA_STAT(ctpio_unqualified_fallback, CTPIO_UNQUALIFIED_FALLBACK), + EF10_DMA_STAT(ctpio_runt_fallback, CTPIO_RUNT_FALLBACK), + EF10_DMA_STAT(ctpio_success, CTPIO_SUCCESS), + EF10_DMA_STAT(ctpio_fallback, CTPIO_FALLBACK), + EF10_DMA_STAT(ctpio_poison, CTPIO_POISON), + EF10_DMA_STAT(ctpio_erase, CTPIO_ERASE), }; #define HUNT_COMMON_STAT_MASK ((1ULL << EF10_STAT_port_tx_bytes) | \ @@ -1737,6 +1754,30 @@ static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = { (1ULL << (EF10_STAT_fec_corrected_symbols_lane2 - 64)) | \ (1ULL << (EF10_STAT_fec_corrected_symbols_lane3 - 64))) +/* These statistics are only provided if the NIC supports MC_CMD_MAC_STATS_V3, + * indicated by returning a value >= MC_CMD_MAC_NSTATS_V3 in + * MC_CMD_GET_CAPABILITIES_V4_OUT_MAC_STATS_NUM_STATS. + * These bits are in the second u64 of the raw mask. + */ +#define EF10_CTPIO_STAT_MASK ( \ + (1ULL << (EF10_STAT_ctpio_dmabuf_start - 64)) | \ + (1ULL << (EF10_STAT_ctpio_vi_busy_fallback - 64)) | \ + (1ULL << (EF10_STAT_ctpio_long_write_success - 64)) | \ + (1ULL << (EF10_STAT_ctpio_missing_dbell_fail - 64)) | \ + (1ULL << (EF10_STAT_ctpio_overflow_fail - 64)) | \ + (1ULL << (EF10_STAT_ctpio_underflow_fail - 64)) | \ + (1ULL << (EF10_STAT_ctpio_timeout_fail - 64)) | \ + (1ULL << (EF10_STAT_ctpio_noncontig_wr_fail - 64)) | \ + (1ULL << (EF10_STAT_ctpio_frm_clobber_fail - 64)) | \ + (1ULL << (EF10_STAT_ctpio_invalid_wr_fail - 64)) | \ + (1ULL << (EF10_STAT_ctpio_vi_clobber_fallback - 64)) | \ + (1ULL << (EF10_STAT_ctpio_unqualified_fallback - 64)) | \ + (1ULL << (EF10_STAT_ctpio_runt_fallback - 64)) | \ + (1ULL << (EF10_STAT_ctpio_success - 64)) | \ + (1ULL << (EF10_STAT_ctpio_fallback - 64)) | \ + (1ULL << (EF10_STAT_ctpio_poison - 64)) | \ + (1ULL << (EF10_STAT_ctpio_erase - 64))) + static u64 efx_ef10_raw_stat_mask(struct efx_nic *efx) { u64 raw_mask = HUNT_COMMON_STAT_MASK; @@ -1783,6 +1824,15 @@ static void efx_ef10_get_stat_mask(struct efx_nic *efx, unsigned long *mask) if (efx->num_mac_stats >= MC_CMD_MAC_NSTATS_V2) raw_mask[1] |= EF10_FEC_STAT_MASK; + /* CTPIO stats appear in V3. Only show them on devices that actually + * support CTPIO. Although this driver doesn't use CTPIO others might, + * and we may be reporting the stats for the underlying port. + */ + if (efx->num_mac_stats >= MC_CMD_MAC_NSTATS_V3 && + (nic_data->datapath_caps2 & + (1 << MC_CMD_GET_CAPABILITIES_V4_OUT_CTPIO_LBN))) + raw_mask[1] |= EF10_CTPIO_STAT_MASK; + #if BITS_PER_LONG == 64 BUILD_BUG_ON(BITS_TO_LONGS(EF10_STAT_COUNT) != 2); mask[0] = raw_mask[0]; |