New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 184 insertions, 9 deletions

diff --git a/drivers/net/sfc/base/ef10_mac.c b/drivers/net/sfc/base/ef10_mac.c
index db7692ee..1031e836 100644
--- a/drivers/net/sfc/base/ef10_mac.c
+++ b/drivers/net/sfc/base/ef10_mac.c
@@ -8,7 +8,7 @@
 #include "efx_impl.h"
 
 
-#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2
 
 	__checkReturn	efx_rc_t
 ef10_mac_poll(
@@ -356,7 +356,8 @@ ef10_mac_multicast_list_set(
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
-		    enp->en_family == EFX_FAMILY_MEDFORD);
+	    enp->en_family == EFX_FAMILY_MEDFORD ||
+	    enp->en_family == EFX_FAMILY_MEDFORD2);
 
 	if ((rc = emop->emo_reconfigure(enp)) != 0)
 		goto fail1;
@@ -522,8 +523,44 @@ ef10_mac_stats_get_mask(
 			goto fail6;
 	}
 
+	if (encp->enc_fec_counters) {
+		const struct efx_mac_stats_range ef10_fec[] = {
+			{ EFX_MAC_FEC_UNCORRECTED_ERRORS,
+			    EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE3 },
+		};
+		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
+		    ef10_fec, EFX_ARRAY_SIZE(ef10_fec))) != 0)
+			goto fail7;
+	}
+
+	if (encp->enc_mac_stats_nstats >= MC_CMD_MAC_NSTATS_V4) {
+		const struct efx_mac_stats_range ef10_rxdp_sdt[] = {
+			{ EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC,
+			    EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC },
+		};
+
+		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
+		    ef10_rxdp_sdt, EFX_ARRAY_SIZE(ef10_rxdp_sdt))) != 0)
+			goto fail8;
+	}
+
+	if (encp->enc_hlb_counters) {
+		const struct efx_mac_stats_range ef10_hlb[] = {
+			{ EFX_MAC_RXDP_HLB_IDLE, EFX_MAC_RXDP_HLB_TIMEOUT },
+		};
+		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
+		    ef10_hlb, EFX_ARRAY_SIZE(ef10_hlb))) != 0)
+			goto fail9;
+	}
+
 	return (0);
 
+fail9:
+	EFSYS_PROBE(fail9);
+fail8:
+	EFSYS_PROBE(fail8);
+fail7:
+	EFSYS_PROBE(fail7);
 fail6:
 	EFSYS_PROBE(fail6);
 fail5:
@@ -551,16 +588,45 @@ ef10_mac_stats_update(
 	__inout_ecount(EFX_MAC_NSTATS)	efsys_stat_t *stat,
 	__inout_opt			uint32_t *generationp)
 {
-	efx_qword_t value;
+	const efx_nic_cfg_t *encp = &enp->en_nic_cfg;
 	efx_qword_t generation_start;
 	efx_qword_t generation_end;
+	efx_qword_t value;
+	efx_rc_t rc;
 
-	_NOTE(ARGUNUSED(enp))
+	/*
+	 * The MAC_STATS contain start and end generation counters used to
+	 * detect when the DMA buffer has been updated during stats decode.
+	 * All stats counters are 64bit unsigned values.
+	 *
+	 * Siena-compatible MAC stats contain MC_CMD_MAC_NSTATS 64bit counters.
+	 * The generation end counter is at index MC_CMD_MAC_GENERATION_END
+	 * (same as MC_CMD_MAC_NSTATS-1).
+	 *
+	 * Medford2 and later use a larger DMA buffer: MAC_STATS_NUM_STATS from
+	 * MC_CMD_GET_CAPABILITIES_V4_OUT reports the number of 64bit counters.
+	 *
+	 * Firmware writes the generation end counter as the last counter in the
+	 * DMA buffer. Do not use MC_CMD_MAC_GENERATION_END, as that is only
+	 * correct for legacy Siena-compatible MAC stats.
+	 */
+
+	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS) {
+		/* MAC stats count too small for legacy MAC stats */
+		rc = ENOSPC;
+		goto fail1;
+	}
+	if (EFSYS_MEM_SIZE(esmp) <
+	    (encp->enc_mac_stats_nstats * sizeof (efx_qword_t))) {
+		/* DMA buffer too small */
+		rc = ENOSPC;
+		goto fail2;
+	}
 
 	/* Read END first so we don't race with the MC */
-	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFX_MAC_STATS_SIZE);
-	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_GENERATION_END,
-			    &generation_end);
+	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFSYS_MEM_SIZE(esmp));
+	EF10_MAC_STAT_READ(esmp, (encp->enc_mac_stats_nstats - 1),
+	    &generation_end);
 	EFSYS_MEM_READ_BARRIER();
 
 	/* TX */
@@ -851,7 +917,109 @@ ef10_mac_stats_update(
 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_OVERFLOW]), &value);
 
 
-	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFX_MAC_STATS_SIZE);
+	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS_V2)
+		goto done;
+
+	/* FEC */
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_UNCORRECTED_ERRORS, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_UNCORRECTED_ERRORS]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_ERRORS, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_ERRORS]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE0,
+	    &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE0]),
+	    &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE1,
+	    &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE1]),
+	    &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE2,
+	    &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE2]),
+	    &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE3,
+	    &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE3]),
+	    &value);
+
+	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS_V3)
+		goto done;
+
+	/* CTPIO exceptions */
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_VI_BUSY_FALLBACK, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_VI_BUSY_FALLBACK]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_LONG_WRITE_SUCCESS, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_LONG_WRITE_SUCCESS]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_MISSING_DBELL_FAIL, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_MISSING_DBELL_FAIL]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_OVERFLOW_FAIL, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_OVERFLOW_FAIL]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_UNDERFLOW_FAIL, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_UNDERFLOW_FAIL]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_TIMEOUT_FAIL, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_TIMEOUT_FAIL]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_NONCONTIG_WR_FAIL, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_NONCONTIG_WR_FAIL]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_FRM_CLOBBER_FAIL, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_FRM_CLOBBER_FAIL]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_INVALID_WR_FAIL, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_INVALID_WR_FAIL]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_VI_CLOBBER_FALLBACK, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_VI_CLOBBER_FALLBACK]),
+	    &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_UNQUALIFIED_FALLBACK, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_UNQUALIFIED_FALLBACK]),
+	    &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_RUNT_FALLBACK, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_RUNT_FALLBACK]), &value);
+
+	/* CTPIO per-port stats */
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_SUCCESS, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_SUCCESS]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_FALLBACK, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_FALLBACK]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_POISON, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_POISON]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_ERASE, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_ERASE]), &value);
+
+	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS_V4)
+		goto done;
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_SCATTER_DISABLED_TRUNC,
+	    &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC]),
+	    &value);
+
+	/* Head-of-line blocking */
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_IDLE, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_IDLE]), &value);
+
+	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_TIMEOUT, &value);
+	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_TIMEOUT]), &value);
+
+done:
+	/* Read START generation counter */
+	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFSYS_MEM_SIZE(esmp));
 	EFSYS_MEM_READ_BARRIER();
 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_GENERATION_START,
 			    &generation_start);
@@ -866,8 +1034,15 @@ ef10_mac_stats_update(
 		*generationp = EFX_QWORD_FIELD(generation_start, EFX_DWORD_0);
 
 	return (0);
+
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
 }
 
 #endif	/* EFSYS_OPT_MAC_STATS */
 
-#endif	/* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
+#endif	/* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */