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Date: Mon, 2 Feb 2015 20:23:08 +0530
From: Hariprasad Shenai <hariprasad@...lsio.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, leedom@...lsio.com, anish@...lsio.com,
nirranjan@...lsio.com, praveenm@...lsio.com,
Hariprasad Shenai <hariprasad@...lsio.com>
Subject: [PATCH net-next 7/8] cxgb4: Added support in debugfs to display tp_err_stats
Signed-off-by: Hariprasad Shenai <hariprasad@...lsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 21 +++++-----
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 43 ++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 23 ++++++++++
3 files changed, 77 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index e4e0199..87fe265 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -200,16 +200,16 @@ struct tp_tcp_stats {
};
struct tp_err_stats {
- u32 macInErrs[4];
- u32 hdrInErrs[4];
- u32 tcpInErrs[4];
- u32 tnlCongDrops[4];
- u32 ofldChanDrops[4];
- u32 tnlTxDrops[4];
- u32 ofldVlanDrops[4];
- u32 tcp6InErrs[4];
- u32 ofldNoNeigh;
- u32 ofldCongDefer;
+ u32 mac_in_errs[4];
+ u32 hdr_in_errs[4];
+ u32 tcp_in_errs[4];
+ u32 tnl_cong_drops[4];
+ u32 ofld_chan_drops[4];
+ u32 tnl_tx_drops[4];
+ u32 ofld_vlan_drops[4];
+ u32 tcp6_in_errs[4];
+ u32 ofld_no_neigh;
+ u32 ofld_cong_defer;
};
struct sge_params {
@@ -1066,6 +1066,7 @@ void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
void t4_tp_read_la(struct adapter *adap, u64 *la_buf, unsigned int *wrptr);
void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
struct tp_tcp_stats *v6);
+void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st);
void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
const unsigned short *alpha, const unsigned short *beta);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 904f36d..da939f2 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -1271,6 +1271,48 @@ static int tp_tcp_stats_show(struct seq_file *seq, void *v)
DEFINE_SIMPLE_DEBUGFS_FILE(tp_tcp_stats);
+static int tp_err_stats_show(struct seq_file *seq, void *v)
+{
+ struct tp_err_stats stats;
+ struct adapter *adap = seq->private;
+
+ spin_lock(&adap->stats_lock);
+ t4_tp_get_err_stats(adap, &stats);
+ spin_unlock(&adap->stats_lock);
+
+ seq_puts(seq, " channel 0 channel 1 "
+ "channel 2 channel 3\n");
+ seq_printf(seq, "mac_in_errs: %10u %10u %10u %10u\n",
+ stats.mac_in_errs[0], stats.mac_in_errs[1],
+ stats.mac_in_errs[2], stats.mac_in_errs[3]);
+ seq_printf(seq, "hdr_in_errs: %10u %10u %10u %10u\n",
+ stats.hdr_in_errs[0], stats.hdr_in_errs[1],
+ stats.hdr_in_errs[2], stats.hdr_in_errs[3]);
+ seq_printf(seq, "tcp_in_errs: %10u %10u %10u %10u\n",
+ stats.tcp_in_errs[0], stats.tcp_in_errs[1],
+ stats.tcp_in_errs[2], stats.tcp_in_errs[3]);
+ seq_printf(seq, "tcp6_in_errs: %10u %10u %10u %10u\n",
+ stats.tcp6_in_errs[0], stats.tcp6_in_errs[1],
+ stats.tcp6_in_errs[2], stats.tcp6_in_errs[3]);
+ seq_printf(seq, "tnl_cong_drops: %10u %10u %10u %10u\n",
+ stats.tnl_cong_drops[0], stats.tnl_cong_drops[1],
+ stats.tnl_cong_drops[2], stats.tnl_cong_drops[3]);
+ seq_printf(seq, "tnl_tx_drops: %10u %10u %10u %10u\n",
+ stats.tnl_tx_drops[0], stats.tnl_tx_drops[1],
+ stats.tnl_tx_drops[2], stats.tnl_tx_drops[3]);
+ seq_printf(seq, "ofld_vlan_drops: %10u %10u %10u %10u\n",
+ stats.ofld_vlan_drops[0], stats.ofld_vlan_drops[1],
+ stats.ofld_vlan_drops[2], stats.ofld_vlan_drops[3]);
+ seq_printf(seq, "ofld_chan_drops: %10u %10u %10u %10u\n\n",
+ stats.ofld_chan_drops[0], stats.ofld_chan_drops[1],
+ stats.ofld_chan_drops[2], stats.ofld_chan_drops[3]);
+ seq_printf(seq, "ofld_no_neigh: %u\nofld_cong_defer: %u\n",
+ stats.ofld_no_neigh, stats.ofld_cong_defer);
+ return 0;
+}
+
+DEFINE_SIMPLE_DEBUGFS_FILE(tp_err_stats);
+
#if IS_ENABLED(CONFIG_IPV6)
static int clip_tbl_open(struct inode *inode, struct file *file)
{
@@ -2052,6 +2094,7 @@ int t4_setup_debugfs(struct adapter *adap)
{ "obq_ncsi", &cim_obq_fops, S_IRUSR, 5 },
{ "tp_la", &tp_la_fops, S_IRUSR, 0 },
{ "tp_tcp_stats", &tp_tcp_stats_debugfs_fops, S_IRUSR, 0 },
+ { "tp_err_stats", &tp_err_stats_debugfs_fops, S_IRUSR, 0 },
{ "ulprx_la", &ulprx_la_fops, S_IRUSR, 0 },
{ "sensors", &sensors_debugfs_fops, S_IRUSR, 0 },
{ "lb_stats", &lb_stats_debugfs_fops, S_IRUSR, 0 },
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 2603b64..7e0db7a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -2396,6 +2396,29 @@ void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
}
/**
+ * t4_tp_get_err_stats - read TP's error MIB counters
+ * @adap: the adapter
+ * @st: holds the counter values
+ *
+ * Returns the values of TP's error counters.
+ */
+void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st)
+{
+ t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
+ st->mac_in_errs, 12, TP_MIB_MAC_IN_ERR_0_A);
+ t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
+ st->tnl_cong_drops, 8, TP_MIB_TNL_CNG_DROP_0_A);
+ t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
+ st->tnl_tx_drops, 4, TP_MIB_TNL_DROP_0_A);
+ t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
+ st->ofld_vlan_drops, 4, TP_MIB_OFD_VLN_DROP_0_A);
+ t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
+ st->tcp6_in_errs, 4, TP_MIB_TCP_V6IN_ERR_0_A);
+ t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
+ &st->ofld_no_neigh, 2, TP_MIB_OFD_ARP_DROP_A);
+}
+
+/**
* t4_read_mtu_tbl - returns the values in the HW path MTU table
* @adap: the adapter
* @mtus: where to store the MTU values
--
1.7.1
--
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