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Date: Thu, 12 Nov 2009 20:37:38 -0800
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, gospo@...hat.com,
Alexander Duyck <alexander.h.duyck@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH 4/7] igb: Rework how netdev->stats is handled
From: Alexander Duyck <alexander.h.duyck@...el.com>
This patch does some refactoring work that I felt was needed after reviewing
the changes recently submitted relating to the replacement of net_stats with
netdev->stats.
This patch essentially creates two different collections of stats. The
first handles the adapter specific states and is stored in gstring_stats,
and the second is for netdev specific stats and is stored in
gstring_net_stats.
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/igb/igb_ethtool.c | 171 +++++++++++++++++++++--------------------
drivers/net/igb/igb_main.c | 40 +++++-----
2 files changed, 108 insertions(+), 103 deletions(-)
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index f2b2825..c1cde5b 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -37,77 +37,88 @@
#include "igb.h"
-enum {NETDEV_STATS, IGB_STATS};
-
struct igb_stats {
char stat_string[ETH_GSTRING_LEN];
- int type;
int sizeof_stat;
int stat_offset;
};
-#define IGB_STAT(m) IGB_STATS, \
- FIELD_SIZEOF(struct igb_adapter, m), \
- offsetof(struct igb_adapter, m)
-#define IGB_NETDEV_STAT(m) NETDEV_STATS, \
- FIELD_SIZEOF(struct net_device, m), \
- offsetof(struct net_device, m)
-
+#define IGB_STAT(_name, _stat) { \
+ .stat_string = _name, \
+ .sizeof_stat = FIELD_SIZEOF(struct igb_adapter, _stat), \
+ .stat_offset = offsetof(struct igb_adapter, _stat) \
+}
static const struct igb_stats igb_gstrings_stats[] = {
- { "rx_packets", IGB_STAT(stats.gprc) },
- { "tx_packets", IGB_STAT(stats.gptc) },
- { "rx_bytes", IGB_STAT(stats.gorc) },
- { "tx_bytes", IGB_STAT(stats.gotc) },
- { "rx_broadcast", IGB_STAT(stats.bprc) },
- { "tx_broadcast", IGB_STAT(stats.bptc) },
- { "rx_multicast", IGB_STAT(stats.mprc) },
- { "tx_multicast", IGB_STAT(stats.mptc) },
- { "rx_errors", IGB_NETDEV_STAT(stats.rx_errors) },
- { "tx_errors", IGB_NETDEV_STAT(stats.tx_errors) },
- { "tx_dropped", IGB_NETDEV_STAT(stats.tx_dropped) },
- { "multicast", IGB_STAT(stats.mprc) },
- { "collisions", IGB_STAT(stats.colc) },
- { "rx_length_errors", IGB_NETDEV_STAT(stats.rx_length_errors) },
- { "rx_over_errors", IGB_NETDEV_STAT(stats.rx_over_errors) },
- { "rx_crc_errors", IGB_STAT(stats.crcerrs) },
- { "rx_frame_errors", IGB_NETDEV_STAT(stats.rx_frame_errors) },
- { "rx_no_buffer_count", IGB_STAT(stats.rnbc) },
- { "rx_queue_drop_packet_count", IGB_NETDEV_STAT(stats.rx_fifo_errors) },
- { "rx_missed_errors", IGB_STAT(stats.mpc) },
- { "tx_aborted_errors", IGB_STAT(stats.ecol) },
- { "tx_carrier_errors", IGB_STAT(stats.tncrs) },
- { "tx_fifo_errors", IGB_NETDEV_STAT(stats.tx_fifo_errors) },
- { "tx_heartbeat_errors", IGB_NETDEV_STAT(stats.tx_heartbeat_errors) },
- { "tx_window_errors", IGB_STAT(stats.latecol) },
- { "tx_abort_late_coll", IGB_STAT(stats.latecol) },
- { "tx_deferred_ok", IGB_STAT(stats.dc) },
- { "tx_single_coll_ok", IGB_STAT(stats.scc) },
- { "tx_multi_coll_ok", IGB_STAT(stats.mcc) },
- { "tx_timeout_count", IGB_STAT(tx_timeout_count) },
- { "rx_long_length_errors", IGB_STAT(stats.roc) },
- { "rx_short_length_errors", IGB_STAT(stats.ruc) },
- { "rx_align_errors", IGB_STAT(stats.algnerrc) },
- { "tx_tcp_seg_good", IGB_STAT(stats.tsctc) },
- { "tx_tcp_seg_failed", IGB_STAT(stats.tsctfc) },
- { "rx_flow_control_xon", IGB_STAT(stats.xonrxc) },
- { "rx_flow_control_xoff", IGB_STAT(stats.xoffrxc) },
- { "tx_flow_control_xon", IGB_STAT(stats.xontxc) },
- { "tx_flow_control_xoff", IGB_STAT(stats.xofftxc) },
- { "rx_long_byte_count", IGB_STAT(stats.gorc) },
- { "tx_dma_out_of_sync", IGB_STAT(stats.doosync) },
- { "tx_smbus", IGB_STAT(stats.mgptc) },
- { "rx_smbus", IGB_STAT(stats.mgprc) },
- { "dropped_smbus", IGB_STAT(stats.mgpdc) },
+ IGB_STAT("rx_packets", stats.gprc),
+ IGB_STAT("tx_packets", stats.gptc),
+ IGB_STAT("rx_bytes", stats.gorc),
+ IGB_STAT("tx_bytes", stats.gotc),
+ IGB_STAT("rx_broadcast", stats.bprc),
+ IGB_STAT("tx_broadcast", stats.bptc),
+ IGB_STAT("rx_multicast", stats.mprc),
+ IGB_STAT("tx_multicast", stats.mptc),
+ IGB_STAT("multicast", stats.mprc),
+ IGB_STAT("collisions", stats.colc),
+ IGB_STAT("rx_crc_errors", stats.crcerrs),
+ IGB_STAT("rx_no_buffer_count", stats.rnbc),
+ IGB_STAT("rx_missed_errors", stats.mpc),
+ IGB_STAT("tx_aborted_errors", stats.ecol),
+ IGB_STAT("tx_carrier_errors", stats.tncrs),
+ IGB_STAT("tx_window_errors", stats.latecol),
+ IGB_STAT("tx_abort_late_coll", stats.latecol),
+ IGB_STAT("tx_deferred_ok", stats.dc),
+ IGB_STAT("tx_single_coll_ok", stats.scc),
+ IGB_STAT("tx_multi_coll_ok", stats.mcc),
+ IGB_STAT("tx_timeout_count", tx_timeout_count),
+ IGB_STAT("rx_long_length_errors", stats.roc),
+ IGB_STAT("rx_short_length_errors", stats.ruc),
+ IGB_STAT("rx_align_errors", stats.algnerrc),
+ IGB_STAT("tx_tcp_seg_good", stats.tsctc),
+ IGB_STAT("tx_tcp_seg_failed", stats.tsctfc),
+ IGB_STAT("rx_flow_control_xon", stats.xonrxc),
+ IGB_STAT("rx_flow_control_xoff", stats.xoffrxc),
+ IGB_STAT("tx_flow_control_xon", stats.xontxc),
+ IGB_STAT("tx_flow_control_xoff", stats.xofftxc),
+ IGB_STAT("rx_long_byte_count", stats.gorc),
+ IGB_STAT("tx_dma_out_of_sync", stats.doosync),
+ IGB_STAT("tx_smbus", stats.mgptc),
+ IGB_STAT("rx_smbus", stats.mgprc),
+ IGB_STAT("dropped_smbus", stats.mgpdc),
+};
+
+#define IGB_NETDEV_STAT(_net_stat) { \
+ .stat_string = __stringify(_net_stat), \
+ .sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \
+ .stat_offset = offsetof(struct net_device_stats, _net_stat) \
+}
+static const struct igb_stats igb_gstrings_net_stats[] = {
+ IGB_NETDEV_STAT(rx_errors),
+ IGB_NETDEV_STAT(tx_errors),
+ IGB_NETDEV_STAT(tx_dropped),
+ IGB_NETDEV_STAT(rx_length_errors),
+ IGB_NETDEV_STAT(rx_over_errors),
+ IGB_NETDEV_STAT(rx_frame_errors),
+ IGB_NETDEV_STAT(rx_fifo_errors),
+ IGB_NETDEV_STAT(tx_fifo_errors),
+ IGB_NETDEV_STAT(tx_heartbeat_errors)
};
+#define IGB_GLOBAL_STATS_LEN \
+ (sizeof(igb_gstrings_stats) / sizeof(struct igb_stats))
+#define IGB_NETDEV_STATS_LEN \
+ (sizeof(igb_gstrings_net_stats) / sizeof(struct igb_stats))
+#define IGB_RX_QUEUE_STATS_LEN \
+ (sizeof(struct igb_rx_queue_stats) / sizeof(u64))
+#define IGB_TX_QUEUE_STATS_LEN \
+ (sizeof(struct igb_tx_queue_stats) / sizeof(u64))
#define IGB_QUEUE_STATS_LEN \
((((struct igb_adapter *)netdev_priv(netdev))->num_rx_queues * \
- (sizeof(struct igb_rx_queue_stats) / sizeof(u64))) + \
+ IGB_RX_QUEUE_STATS_LEN) + \
(((struct igb_adapter *)netdev_priv(netdev))->num_tx_queues * \
- (sizeof(struct igb_tx_queue_stats) / sizeof(u64))))
-#define IGB_GLOBAL_STATS_LEN \
- (sizeof(igb_gstrings_stats) / sizeof(struct igb_stats))
-#define IGB_STATS_LEN (IGB_GLOBAL_STATS_LEN + IGB_QUEUE_STATS_LEN)
+ IGB_TX_QUEUE_STATS_LEN))
+#define IGB_STATS_LEN \
+ (IGB_GLOBAL_STATS_LEN + IGB_NETDEV_STATS_LEN + IGB_QUEUE_STATS_LEN)
+
static const char igb_gstrings_test[][ETH_GSTRING_LEN] = {
"Register test (offline)", "Eeprom test (offline)",
"Interrupt test (offline)", "Loopback test (offline)",
@@ -1922,43 +1933,32 @@ static void igb_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct igb_adapter *adapter = netdev_priv(netdev);
+ struct net_device_stats *net_stats = &netdev->stats;
u64 *queue_stat;
- int stat_count_tx = sizeof(struct igb_tx_queue_stats) / sizeof(u64);
- int stat_count_rx = sizeof(struct igb_rx_queue_stats) / sizeof(u64);
- int j;
- int i;
- char *p = NULL;
+ int i, j, k;
+ char *p;
igb_update_stats(adapter);
for (i = 0; i < IGB_GLOBAL_STATS_LEN; i++) {
- switch (igb_gstrings_stats[i].type) {
- case NETDEV_STATS:
- p = (char *) netdev +
- igb_gstrings_stats[i].stat_offset;
- break;
- case IGB_STATS:
- p = (char *) adapter +
- igb_gstrings_stats[i].stat_offset;
- break;
- }
-
+ p = (char *)adapter + igb_gstrings_stats[i].stat_offset;
data[i] = (igb_gstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
+ for (j = 0; j < IGB_NETDEV_STATS_LEN; j++, i++) {
+ p = (char *)net_stats + igb_gstrings_net_stats[j].stat_offset;
+ data[i] = (igb_gstrings_net_stats[j].sizeof_stat ==
+ sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+ }
for (j = 0; j < adapter->num_tx_queues; j++) {
- int k;
queue_stat = (u64 *)&adapter->tx_ring[j].tx_stats;
- for (k = 0; k < stat_count_tx; k++)
- data[i + k] = queue_stat[k];
- i += k;
+ for (k = 0; k < IGB_TX_QUEUE_STATS_LEN; k++, i++)
+ data[i] = queue_stat[k];
}
for (j = 0; j < adapter->num_rx_queues; j++) {
- int k;
queue_stat = (u64 *)&adapter->rx_ring[j].rx_stats;
- for (k = 0; k < stat_count_rx; k++)
- data[i + k] = queue_stat[k];
- i += k;
+ for (k = 0; k < IGB_RX_QUEUE_STATS_LEN; k++, i++)
+ data[i] = queue_stat[k];
}
}
@@ -1979,6 +1979,11 @@ static void igb_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
+ for (i = 0; i < IGB_NETDEV_STATS_LEN; i++) {
+ memcpy(p, igb_gstrings_net_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
for (i = 0; i < adapter->num_tx_queues; i++) {
sprintf(p, "tx_queue_%u_packets", i);
p += ETH_GSTRING_LEN;
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 0235220..4d4ab87 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3789,7 +3789,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
void igb_update_stats(struct igb_adapter *adapter)
{
- struct net_device *netdev = adapter->netdev;
+ struct net_device_stats *net_stats = igb_get_stats(adapter->netdev);
struct e1000_hw *hw = &adapter->hw;
struct pci_dev *pdev = adapter->pdev;
u32 rnbc;
@@ -3813,13 +3813,13 @@ void igb_update_stats(struct igb_adapter *adapter)
for (i = 0; i < adapter->num_rx_queues; i++) {
u32 rqdpc_tmp = rd32(E1000_RQDPC(i)) & 0x0FFF;
adapter->rx_ring[i].rx_stats.drops += rqdpc_tmp;
- netdev->stats.rx_fifo_errors += rqdpc_tmp;
+ net_stats->rx_fifo_errors += rqdpc_tmp;
bytes += adapter->rx_ring[i].rx_stats.bytes;
packets += adapter->rx_ring[i].rx_stats.packets;
}
- netdev->stats.rx_bytes = bytes;
- netdev->stats.rx_packets = packets;
+ net_stats->rx_bytes = bytes;
+ net_stats->rx_packets = packets;
bytes = 0;
packets = 0;
@@ -3827,8 +3827,8 @@ void igb_update_stats(struct igb_adapter *adapter)
bytes += adapter->tx_ring[i].tx_stats.bytes;
packets += adapter->tx_ring[i].tx_stats.packets;
}
- netdev->stats.tx_bytes = bytes;
- netdev->stats.tx_packets = packets;
+ net_stats->tx_bytes = bytes;
+ net_stats->tx_packets = packets;
/* read stats registers */
adapter->stats.crcerrs += rd32(E1000_CRCERRS);
@@ -3865,7 +3865,7 @@ void igb_update_stats(struct igb_adapter *adapter)
rd32(E1000_GOTCH); /* clear GOTCL */
rnbc = rd32(E1000_RNBC);
adapter->stats.rnbc += rnbc;
- netdev->stats.rx_fifo_errors += rnbc;
+ net_stats->rx_fifo_errors += rnbc;
adapter->stats.ruc += rd32(E1000_RUC);
adapter->stats.rfc += rd32(E1000_RFC);
adapter->stats.rjc += rd32(E1000_RJC);
@@ -3906,29 +3906,29 @@ void igb_update_stats(struct igb_adapter *adapter)
adapter->stats.icrxdmtc += rd32(E1000_ICRXDMTC);
/* Fill out the OS statistics structure */
- netdev->stats.multicast = adapter->stats.mprc;
- netdev->stats.collisions = adapter->stats.colc;
+ net_stats->multicast = adapter->stats.mprc;
+ net_stats->collisions = adapter->stats.colc;
/* Rx Errors */
/* RLEC on some newer hardware can be incorrect so build
* our own version based on RUC and ROC */
- netdev->stats.rx_errors = adapter->stats.rxerrc +
+ net_stats->rx_errors = adapter->stats.rxerrc +
adapter->stats.crcerrs + adapter->stats.algnerrc +
adapter->stats.ruc + adapter->stats.roc +
adapter->stats.cexterr;
- netdev->stats.rx_length_errors = adapter->stats.ruc +
- adapter->stats.roc;
- netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
- netdev->stats.rx_frame_errors = adapter->stats.algnerrc;
- netdev->stats.rx_missed_errors = adapter->stats.mpc;
+ net_stats->rx_length_errors = adapter->stats.ruc +
+ adapter->stats.roc;
+ net_stats->rx_crc_errors = adapter->stats.crcerrs;
+ net_stats->rx_frame_errors = adapter->stats.algnerrc;
+ net_stats->rx_missed_errors = adapter->stats.mpc;
/* Tx Errors */
- netdev->stats.tx_errors = adapter->stats.ecol +
- adapter->stats.latecol;
- netdev->stats.tx_aborted_errors = adapter->stats.ecol;
- netdev->stats.tx_window_errors = adapter->stats.latecol;
- netdev->stats.tx_carrier_errors = adapter->stats.tncrs;
+ net_stats->tx_errors = adapter->stats.ecol +
+ adapter->stats.latecol;
+ net_stats->tx_aborted_errors = adapter->stats.ecol;
+ net_stats->tx_window_errors = adapter->stats.latecol;
+ net_stats->tx_carrier_errors = adapter->stats.tncrs;
/* Tx Dropped needs to be maintained elsewhere */
--
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