diff options
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 34 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 46 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 36 |
4 files changed, 117 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index d84c94580ce9..2e70228272b0 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -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, diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index eb39564c1dfe..484eb8c37489 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -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 }, diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index c967b24b72b3..9d93f4c27300 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -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 diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h index 525d06e5defe..375a825573b0 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h @@ -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 |