drivers/net/ethernet/mellanox/mlx4/en_port.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mellanox/mlx4/en_port.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/mellanox/mlx4/en_port.c
Extension
.c
Size
15817 bytes
Lines
437
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (mlx4_is_master(mdev->dev)) {
			stats->rx_packets = p_stats->rx_packets_phy;
			stats->tx_packets = p_stats->tx_packets_phy;
			stats->rx_bytes = p_stats->rx_bytes_phy;
			stats->tx_bytes = p_stats->tx_bytes_phy;
		}
	}

	/* net device stats */
	stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
			   be32_to_cpu(mlx4_en_stats->RJBBR) +
			   be32_to_cpu(mlx4_en_stats->RCRC) +
			   be32_to_cpu(mlx4_en_stats->RRUNT) +
			   be64_to_cpu(mlx4_en_stats->RInRangeLengthErr) +
			   be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr) +
			   be32_to_cpu(mlx4_en_stats->RSHORT) +
			   en_stats_adder(&mlx4_en_stats->RGIANT_prio_0,
					  &mlx4_en_stats->RGIANT_prio_1,
					  NUM_PRIORITIES);
	stats->tx_errors = en_stats_adder(&mlx4_en_stats->TGIANT_prio_0,
					  &mlx4_en_stats->TGIANT_prio_1,
					  NUM_PRIORITIES);
	stats->multicast = en_stats_adder(&mlx4_en_stats->MCAST_prio_0,
					  &mlx4_en_stats->MCAST_prio_1,
					  NUM_PRIORITIES);
	stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP) +
			    sw_rx_dropped;
	stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
	stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
	stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
	stats->tx_dropped = be32_to_cpu(mlx4_en_stats->TDROP) +
			    sw_tx_dropped;

	/* RX stats */
	priv->pkstats.rx_multicast_packets = stats->multicast;
	priv->pkstats.rx_broadcast_packets =
			en_stats_adder(&mlx4_en_stats->RBCAST_prio_0,
				       &mlx4_en_stats->RBCAST_prio_1,
				       NUM_PRIORITIES);
	priv->pkstats.rx_jabbers = be32_to_cpu(mlx4_en_stats->RJBBR);
	priv->pkstats.rx_in_range_length_error =
		be64_to_cpu(mlx4_en_stats->RInRangeLengthErr);
	priv->pkstats.rx_out_range_length_error =
		be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr);

	/* Tx stats */
	priv->pkstats.tx_multicast_packets =
		en_stats_adder(&mlx4_en_stats->TMCAST_prio_0,
			       &mlx4_en_stats->TMCAST_prio_1,
			       NUM_PRIORITIES);
	priv->pkstats.tx_broadcast_packets =
		en_stats_adder(&mlx4_en_stats->TBCAST_prio_0,
			       &mlx4_en_stats->TBCAST_prio_1,
			       NUM_PRIORITIES);

	priv->pkstats.rx_prio[0][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
	priv->pkstats.rx_prio[0][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_0);
	priv->pkstats.rx_prio[1][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
	priv->pkstats.rx_prio[1][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_1);
	priv->pkstats.rx_prio[2][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
	priv->pkstats.rx_prio[2][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_2);
	priv->pkstats.rx_prio[3][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
	priv->pkstats.rx_prio[3][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_3);
	priv->pkstats.rx_prio[4][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
	priv->pkstats.rx_prio[4][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_4);
	priv->pkstats.rx_prio[5][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
	priv->pkstats.rx_prio[5][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_5);
	priv->pkstats.rx_prio[6][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
	priv->pkstats.rx_prio[6][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_6);
	priv->pkstats.rx_prio[7][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
	priv->pkstats.rx_prio[7][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_7);
	priv->pkstats.rx_prio[8][0] = be64_to_cpu(mlx4_en_stats->RTOT_novlan);
	priv->pkstats.rx_prio[8][1] = be64_to_cpu(mlx4_en_stats->ROCT_novlan);
	priv->pkstats.tx_prio[0][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
	priv->pkstats.tx_prio[0][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_0);
	priv->pkstats.tx_prio[1][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
	priv->pkstats.tx_prio[1][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_1);
	priv->pkstats.tx_prio[2][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
	priv->pkstats.tx_prio[2][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_2);
	priv->pkstats.tx_prio[3][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
	priv->pkstats.tx_prio[3][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_3);
	priv->pkstats.tx_prio[4][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
	priv->pkstats.tx_prio[4][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_4);
	priv->pkstats.tx_prio[5][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
	priv->pkstats.tx_prio[5][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_5);
	priv->pkstats.tx_prio[6][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
	priv->pkstats.tx_prio[6][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_6);
	priv->pkstats.tx_prio[7][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
	priv->pkstats.tx_prio[7][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_7);
	priv->pkstats.tx_prio[8][0] = be64_to_cpu(mlx4_en_stats->TTOT_novlan);

Annotation

Implementation Notes