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| author | Hariprasad Shenai | 2015-02-06 15:02:55 +0100 |
|---|---|---|
| committer | David S. Miller | 2015-02-08 07:52:39 +0100 |
| commit | bad4379263d2c2442f5273adc856dd67e4274f3f (patch) | |
| tree | eaee8c8a3ec8c75dce02aac7888b519aed4bd12e /drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | |
| parent | cxgb4: Add support to dump mailbox content in debugfs (diff) | |
| download | kernel-qcow2-linux-bad4379263d2c2442f5273adc856dd67e4274f3f.tar.gz kernel-qcow2-linux-bad4379263d2c2442f5273adc856dd67e4274f3f.tar.xz kernel-qcow2-linux-bad4379263d2c2442f5273adc856dd67e4274f3f.zip | |
cxgb4: Add support in debugfs to dump the congestion control table
Dump Transport Processor modules congestion control configuration
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index 83e29320a945..a1029eecef02 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -663,6 +663,33 @@ static const struct file_operations pm_stats_debugfs_fops = { .write = pm_stats_clear }; +static int cctrl_tbl_show(struct seq_file *seq, void *v) +{ + static const char * const dec_fac[] = { + "0.5", "0.5625", "0.625", "0.6875", "0.75", "0.8125", "0.875", + "0.9375" }; + + int i; + u16 incr[NMTUS][NCCTRL_WIN]; + struct adapter *adap = seq->private; + + t4_read_cong_tbl(adap, incr); + + for (i = 0; i < NCCTRL_WIN; ++i) { + seq_printf(seq, "%2d: %4u %4u %4u %4u %4u %4u %4u %4u\n", i, + incr[0][i], incr[1][i], incr[2][i], incr[3][i], + incr[4][i], incr[5][i], incr[6][i], incr[7][i]); + seq_printf(seq, "%8u %4u %4u %4u %4u %4u %4u %4u %5u %s\n", + incr[8][i], incr[9][i], incr[10][i], incr[11][i], + incr[12][i], incr[13][i], incr[14][i], incr[15][i], + adap->params.a_wnd[i], + dec_fac[adap->params.b_wnd[i]]); + } + return 0; +} + +DEFINE_SIMPLE_DEBUGFS_FILE(cctrl_tbl); + /* Format a value in a unit that differs from the value's native unit by the * given factor. */ @@ -1990,6 +2017,7 @@ 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 }, + { "cctrl", &cctrl_tbl_debugfs_fops, S_IRUSR, 0 }, #if IS_ENABLED(CONFIG_IPV6) { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 }, #endif |