diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2015-01-27 13:47:48 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-27 00:15:02 -0800 |
| commit | b3bbe36a26d056cc0b64bb2ee72c9e34c4e8683a (patch) | |
| tree | 345490f4557ddf5aecfc38cbc753b0e8ade93c4c /drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | |
| parent | c778af7d18646247310b7bceaf3eacc6eeee1614 (diff) | |
| download | linux-b3bbe36a26d056cc0b64bb2ee72c9e34c4e8683a.tar.bz2 | |
cxgb4: Added support in debugfs to dump PM module stats
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/t4_hw.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index a3d2f31439c4..ea16c623e8b2 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -2512,6 +2512,60 @@ void t4_load_mtus(struct adapter *adap, const unsigned short *mtus, } /** + * t4_pmtx_get_stats - returns the HW stats from PMTX + * @adap: the adapter + * @cnt: where to store the count statistics + * @cycles: where to store the cycle statistics + * + * Returns performance statistics from PMTX. + */ +void t4_pmtx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[]) +{ + int i; + u32 data[2]; + + for (i = 0; i < PM_NSTATS; i++) { + t4_write_reg(adap, PM_TX_STAT_CONFIG_A, i + 1); + cnt[i] = t4_read_reg(adap, PM_TX_STAT_COUNT_A); + if (is_t4(adap->params.chip)) { + cycles[i] = t4_read_reg64(adap, PM_TX_STAT_LSB_A); + } else { + t4_read_indirect(adap, PM_TX_DBG_CTRL_A, + PM_TX_DBG_DATA_A, data, 2, + PM_TX_DBG_STAT_MSB_A); + cycles[i] = (((u64)data[0] << 32) | data[1]); + } + } +} + +/** + * t4_pmrx_get_stats - returns the HW stats from PMRX + * @adap: the adapter + * @cnt: where to store the count statistics + * @cycles: where to store the cycle statistics + * + * Returns performance statistics from PMRX. + */ +void t4_pmrx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[]) +{ + int i; + u32 data[2]; + + for (i = 0; i < PM_NSTATS; i++) { + t4_write_reg(adap, PM_RX_STAT_CONFIG_A, i + 1); + cnt[i] = t4_read_reg(adap, PM_RX_STAT_COUNT_A); + if (is_t4(adap->params.chip)) { + cycles[i] = t4_read_reg64(adap, PM_RX_STAT_LSB_A); + } else { + t4_read_indirect(adap, PM_RX_DBG_CTRL_A, + PM_RX_DBG_DATA_A, data, 2, + PM_RX_DBG_STAT_MSB_A); + cycles[i] = (((u64)data[0] << 32) | data[1]); + } + } +} + +/** * get_mps_bg_map - return the buffer groups associated with a port * @adap: the adapter * @idx: the port index |