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[PATCH] forcedeth config: statistics
This patch exposes hardware statistic counters through ethtool support. Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Ayaz Abdulla
Jeff Garzik
parent
5ed2616f62
commit
52da35789c
@ -165,6 +165,7 @@
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#define DEV_HAS_MSI_X 0x0080 /* device supports MSI-X */
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#define DEV_HAS_POWER_CNTRL 0x0100 /* device supports power savings */
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#define DEV_HAS_PAUSEFRAME_TX 0x0200 /* device supports tx pause frames */
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#define DEV_HAS_STATISTICS 0x0400 /* device supports hw statistics */
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enum {
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NvRegIrqStatus = 0x000,
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@ -333,6 +334,33 @@ enum {
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#define NVREG_POWERSTATE_D1 0x0001
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#define NVREG_POWERSTATE_D2 0x0002
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#define NVREG_POWERSTATE_D3 0x0003
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NvRegTxCnt = 0x280,
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NvRegTxZeroReXmt = 0x284,
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NvRegTxOneReXmt = 0x288,
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NvRegTxManyReXmt = 0x28c,
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NvRegTxLateCol = 0x290,
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NvRegTxUnderflow = 0x294,
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NvRegTxLossCarrier = 0x298,
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NvRegTxExcessDef = 0x29c,
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NvRegTxRetryErr = 0x2a0,
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NvRegRxFrameErr = 0x2a4,
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NvRegRxExtraByte = 0x2a8,
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NvRegRxLateCol = 0x2ac,
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NvRegRxRunt = 0x2b0,
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NvRegRxFrameTooLong = 0x2b4,
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NvRegRxOverflow = 0x2b8,
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NvRegRxFCSErr = 0x2bc,
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NvRegRxFrameAlignErr = 0x2c0,
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NvRegRxLenErr = 0x2c4,
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NvRegRxUnicast = 0x2c8,
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NvRegRxMulticast = 0x2cc,
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NvRegRxBroadcast = 0x2d0,
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NvRegTxDef = 0x2d4,
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NvRegTxFrame = 0x2d8,
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NvRegRxCnt = 0x2dc,
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NvRegTxPause = 0x2e0,
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NvRegRxPause = 0x2e4,
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NvRegRxDropFrame = 0x2e8,
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NvRegVlanControl = 0x300,
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#define NVREG_VLANCONTROL_ENABLE 0x2000
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NvRegMSIXMap0 = 0x3e0,
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@ -481,6 +509,7 @@ typedef union _ring_type {
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#define OOM_REFILL (1+HZ/20)
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#define POLL_WAIT (1+HZ/100)
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#define LINK_TIMEOUT (3*HZ)
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#define STATS_INTERVAL (10*HZ)
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/*
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* desc_ver values:
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@ -536,6 +565,75 @@ typedef union _ring_type {
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#define NV_MSI_X_VECTOR_TX 0x1
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#define NV_MSI_X_VECTOR_OTHER 0x2
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/* statistics */
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struct nv_ethtool_str {
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char name[ETH_GSTRING_LEN];
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};
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static const struct nv_ethtool_str nv_estats_str[] = {
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{ "tx_bytes" },
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{ "tx_zero_rexmt" },
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{ "tx_one_rexmt" },
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{ "tx_many_rexmt" },
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{ "tx_late_collision" },
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{ "tx_fifo_errors" },
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{ "tx_carrier_errors" },
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{ "tx_excess_deferral" },
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{ "tx_retry_error" },
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{ "tx_deferral" },
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{ "tx_packets" },
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{ "tx_pause" },
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{ "rx_frame_error" },
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{ "rx_extra_byte" },
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{ "rx_late_collision" },
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{ "rx_runt" },
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{ "rx_frame_too_long" },
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{ "rx_over_errors" },
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{ "rx_crc_errors" },
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{ "rx_frame_align_error" },
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{ "rx_length_error" },
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{ "rx_unicast" },
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{ "rx_multicast" },
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{ "rx_broadcast" },
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{ "rx_bytes" },
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{ "rx_pause" },
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{ "rx_drop_frame" },
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{ "rx_packets" },
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{ "rx_errors_total" }
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};
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struct nv_ethtool_stats {
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u64 tx_bytes;
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u64 tx_zero_rexmt;
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u64 tx_one_rexmt;
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u64 tx_many_rexmt;
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u64 tx_late_collision;
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u64 tx_fifo_errors;
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u64 tx_carrier_errors;
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u64 tx_excess_deferral;
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u64 tx_retry_error;
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u64 tx_deferral;
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u64 tx_packets;
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u64 tx_pause;
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u64 rx_frame_error;
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u64 rx_extra_byte;
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u64 rx_late_collision;
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u64 rx_runt;
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u64 rx_frame_too_long;
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u64 rx_over_errors;
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u64 rx_crc_errors;
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u64 rx_frame_align_error;
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u64 rx_length_error;
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u64 rx_unicast;
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u64 rx_multicast;
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u64 rx_broadcast;
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u64 rx_bytes;
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u64 rx_pause;
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u64 rx_drop_frame;
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u64 rx_packets;
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u64 rx_errors_total;
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};
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/*
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* SMP locking:
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* All hardware access under dev->priv->lock, except the performance
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@ -554,6 +652,7 @@ struct fe_priv {
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/* General data:
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* Locking: spin_lock(&np->lock); */
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struct net_device_stats stats;
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struct nv_ethtool_stats estats;
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int in_shutdown;
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u32 linkspeed;
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int duplex;
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@ -588,6 +687,7 @@ struct fe_priv {
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unsigned int pkt_limit;
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struct timer_list oom_kick;
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struct timer_list nic_poll;
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struct timer_list stats_poll;
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u32 nic_poll_irq;
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int rx_ring_size;
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@ -2471,6 +2571,56 @@ static void nv_poll_controller(struct net_device *dev)
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}
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#endif
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static void nv_do_stats_poll(unsigned long data)
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{
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struct net_device *dev = (struct net_device *) data;
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struct fe_priv *np = netdev_priv(dev);
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u8 __iomem *base = get_hwbase(dev);
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np->estats.tx_bytes += readl(base + NvRegTxCnt);
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np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt);
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np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt);
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np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt);
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np->estats.tx_late_collision += readl(base + NvRegTxLateCol);
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np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow);
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np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier);
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np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef);
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np->estats.tx_retry_error += readl(base + NvRegTxRetryErr);
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np->estats.tx_deferral += readl(base + NvRegTxDef);
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np->estats.tx_packets += readl(base + NvRegTxFrame);
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np->estats.tx_pause += readl(base + NvRegTxPause);
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np->estats.rx_frame_error += readl(base + NvRegRxFrameErr);
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np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte);
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np->estats.rx_late_collision += readl(base + NvRegRxLateCol);
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np->estats.rx_runt += readl(base + NvRegRxRunt);
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np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong);
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np->estats.rx_over_errors += readl(base + NvRegRxOverflow);
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np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr);
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np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr);
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np->estats.rx_length_error += readl(base + NvRegRxLenErr);
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np->estats.rx_unicast += readl(base + NvRegRxUnicast);
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np->estats.rx_multicast += readl(base + NvRegRxMulticast);
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np->estats.rx_broadcast += readl(base + NvRegRxBroadcast);
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np->estats.rx_bytes += readl(base + NvRegRxCnt);
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np->estats.rx_pause += readl(base + NvRegRxPause);
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np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame);
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np->estats.rx_packets =
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np->estats.rx_unicast +
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np->estats.rx_multicast +
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np->estats.rx_broadcast;
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np->estats.rx_errors_total =
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np->estats.rx_crc_errors +
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np->estats.rx_over_errors +
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np->estats.rx_frame_error +
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(np->estats.rx_frame_align_error - np->estats.rx_extra_byte) +
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np->estats.rx_late_collision +
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np->estats.rx_runt +
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np->estats.rx_frame_too_long;
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if (!np->in_shutdown)
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mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL);
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}
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static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
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{
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struct fe_priv *np = netdev_priv(dev);
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@ -3084,6 +3234,35 @@ static int nv_set_sg(struct net_device *dev, u32 data)
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return -EOPNOTSUPP;
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}
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static int nv_get_stats_count(struct net_device *dev)
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{
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struct fe_priv *np = netdev_priv(dev);
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if (np->driver_data & DEV_HAS_STATISTICS)
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return (sizeof(struct nv_ethtool_stats)/sizeof(u64));
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else
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return 0;
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}
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static void nv_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *buffer)
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{
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struct fe_priv *np = netdev_priv(dev);
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/* update stats */
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nv_do_stats_poll((unsigned long)dev);
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memcpy(buffer, &np->estats, nv_get_stats_count(dev)*sizeof(u64));
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}
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static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer)
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{
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switch (stringset) {
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case ETH_SS_STATS:
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memcpy(buffer, &nv_estats_str, nv_get_stats_count(dev)*sizeof(struct nv_ethtool_str));
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break;
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}
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}
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static struct ethtool_ops ops = {
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.get_drvinfo = nv_get_drvinfo,
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.get_link = ethtool_op_get_link,
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@ -3107,6 +3286,9 @@ static struct ethtool_ops ops = {
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.set_tx_csum = nv_set_tx_csum,
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.get_sg = ethtool_op_get_sg,
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.set_sg = nv_set_sg,
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.get_strings = nv_get_strings,
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.get_stats_count = nv_get_stats_count,
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.get_ethtool_stats = nv_get_ethtool_stats,
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};
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static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
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@ -3409,6 +3591,11 @@ static int nv_open(struct net_device *dev)
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}
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if (oom)
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mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
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/* start statistics timer */
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if (np->driver_data & DEV_HAS_STATISTICS)
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mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL);
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spin_unlock_irq(&np->lock);
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return 0;
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@ -3429,6 +3616,7 @@ static int nv_close(struct net_device *dev)
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del_timer_sync(&np->oom_kick);
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del_timer_sync(&np->nic_poll);
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del_timer_sync(&np->stats_poll);
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netif_stop_queue(dev);
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spin_lock_irq(&np->lock);
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@ -3488,6 +3676,9 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
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init_timer(&np->nic_poll);
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np->nic_poll.data = (unsigned long) dev;
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np->nic_poll.function = &nv_do_nic_poll; /* timer handler */
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init_timer(&np->stats_poll);
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np->stats_poll.data = (unsigned long) dev;
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np->stats_poll.function = &nv_do_stats_poll; /* timer handler */
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err = pci_enable_device(pci_dev);
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if (err) {
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@ -3502,7 +3693,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
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if (err < 0)
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goto out_disable;
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if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL))
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if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS))
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np->register_size = NV_PCI_REGSZ_VER2;
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else
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np->register_size = NV_PCI_REGSZ_VER1;
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@ -3858,11 +4049,11 @@ static struct pci_device_id pci_tbl[] = {
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},
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{ /* MCP55 Ethernet Controller */
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PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
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.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX,
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.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS,
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},
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{ /* MCP55 Ethernet Controller */
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PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15),
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.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX,
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.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS,
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},
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{0,},
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};
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