UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

cxgb4: Add debugfs entry to dump channel rate 

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Shenai 2015-06-09 18:27:52 +05:30 committed by David S. Miller
parent 1968960912
commit 7864026b2d
4 changed files with 117 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
View File

@ -1366,6 +1366,7 @@ void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
void t4_ulprx_read_la(struct adapter *adap, u32 *la_buf);
void t4_get_chan_txrate(struct adapter *adap, u64 *nic_rate, u64 *ofld_rate);
void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid);
void t4_wol_magic_enable(struct adapter *adap, unsigned int port,

34
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
View File

@ -752,6 +752,39 @@ static const struct file_operations pm_stats_debugfs_fops = {
.write = pm_stats_clear
};
static int tx_rate_show(struct seq_file *seq, void *v)
{
u64 nrate[NCHAN], orate[NCHAN];
struct adapter *adap = seq->private;
t4_get_chan_txrate(adap, nrate, orate);
if (adap->params.arch.nchan == NCHAN) {
seq_puts(seq, " channel 0 channel 1 "
"channel 2 channel 3\n");
seq_printf(seq, "NIC B/s: %10llu %10llu %10llu %10llu\n",
(unsigned long long)nrate[0],
(unsigned long long)nrate[1],
(unsigned long long)nrate[2],
(unsigned long long)nrate[3]);
seq_printf(seq, "Offload B/s: %10llu %10llu %10llu %10llu\n",
(unsigned long long)orate[0],
(unsigned long long)orate[1],
(unsigned long long)orate[2],
(unsigned long long)orate[3]);
} else {
seq_puts(seq, " channel 0 channel 1\n");
seq_printf(seq, "NIC B/s: %10llu %10llu\n",
(unsigned long long)nrate[0],
(unsigned long long)nrate[1]);
seq_printf(seq, "Offload B/s: %10llu %10llu\n",
(unsigned long long)orate[0],
(unsigned long long)orate[1]);
}
return 0;
}
DEFINE_SIMPLE_DEBUGFS_FILE(tx_rate);
static int cctrl_tbl_show(struct seq_file *seq, void *v)
{
static const char * const dec_fac[] = {
@ -2254,6 +2287,7 @@ int t4_setup_debugfs(struct adapter *adap)
{ "ulprx_la", &ulprx_la_fops, S_IRUSR, 0 },
{ "sensors", &sensors_debugfs_fops, S_IRUSR, 0 },
{ "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 },
{ "tx_rate", &tx_rate_debugfs_fops, S_IRUSR, 0 },
{ "cctrl", &cctrl_tbl_debugfs_fops, S_IRUSR, 0 },
#if IS_ENABLED(CONFIG_IPV6)
{ "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 },

46
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
View File

@ -4191,6 +4191,52 @@ void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
}
}
/* Calculates a rate in bytes/s given the number of 256-byte units per 4K core
* clocks. The formula is
*
* bytes/s = bytes256 * 256 * ClkFreq / 4096
*
* which is equivalent to
*
* bytes/s = 62.5 * bytes256 * ClkFreq_ms
*/
static u64 chan_rate(struct adapter *adap, unsigned int bytes256)
{
u64 v = bytes256 * adap->params.vpd.cclk;
return v * 62 + v / 2;
}
/**
* t4_get_chan_txrate - get the current per channel Tx rates
* @adap: the adapter
* @nic_rate: rates for NIC traffic
* @ofld_rate: rates for offloaded traffic
*
* Return the current Tx rates in bytes/s for NIC and offloaded traffic
* for each channel.
*/
void t4_get_chan_txrate(struct adapter *adap, u64 *nic_rate, u64 *ofld_rate)
{
u32 v;
v = t4_read_reg(adap, TP_TX_TRATE_A);
nic_rate[0] = chan_rate(adap, TNLRATE0_G(v));
nic_rate[1] = chan_rate(adap, TNLRATE1_G(v));
if (adap->params.arch.nchan == NCHAN) {
nic_rate[2] = chan_rate(adap, TNLRATE2_G(v));
nic_rate[3] = chan_rate(adap, TNLRATE3_G(v));
}
v = t4_read_reg(adap, TP_TX_ORATE_A);
ofld_rate[0] = chan_rate(adap, OFDRATE0_G(v));
ofld_rate[1] = chan_rate(adap, OFDRATE1_G(v));
if (adap->params.arch.nchan == NCHAN) {
ofld_rate[2] = chan_rate(adap, OFDRATE2_G(v));
ofld_rate[3] = chan_rate(adap, OFDRATE3_G(v));
}
}
/**
* t4_pmtx_get_stats - returns the HW stats from PMTX
* @adap: the adapter

36
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
View File

@ -1361,6 +1361,42 @@
#define FLMTXFLSTEMPTY_V(x) ((x) << FLMTXFLSTEMPTY_S)
#define FLMTXFLSTEMPTY_F FLMTXFLSTEMPTY_V(1U)
#define TP_TX_ORATE_A 0x7ebc
#define OFDRATE3_S 24
#define OFDRATE3_M 0xffU
#define OFDRATE3_G(x) (((x) >> OFDRATE3_S) & OFDRATE3_M)
#define OFDRATE2_S 16
#define OFDRATE2_M 0xffU
#define OFDRATE2_G(x) (((x) >> OFDRATE2_S) & OFDRATE2_M)
#define OFDRATE1_S 8
#define OFDRATE1_M 0xffU
#define OFDRATE1_G(x) (((x) >> OFDRATE1_S) & OFDRATE1_M)
#define OFDRATE0_S 0
#define OFDRATE0_M 0xffU
#define OFDRATE0_G(x) (((x) >> OFDRATE0_S) & OFDRATE0_M)
#define TP_TX_TRATE_A 0x7ed0
#define TNLRATE3_S 24
#define TNLRATE3_M 0xffU
#define TNLRATE3_G(x) (((x) >> TNLRATE3_S) & TNLRATE3_M)
#define TNLRATE2_S 16
#define TNLRATE2_M 0xffU
#define TNLRATE2_G(x) (((x) >> TNLRATE2_S) & TNLRATE2_M)
#define TNLRATE1_S 8
#define TNLRATE1_M 0xffU
#define TNLRATE1_G(x) (((x) >> TNLRATE1_S) & TNLRATE1_M)
#define TNLRATE0_S 0
#define TNLRATE0_M 0xffU
#define TNLRATE0_G(x) (((x) >> TNLRATE0_S) & TNLRATE0_M)
#define TP_VLAN_PRI_MAP_A 0x140
#define FRAGMENTATION_S 9