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cxgb4: collect hardware misc dumps
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Collect path mtu, PM stats, TP clock info, congestion control, and VPD
data dumps.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rahul Lakkireddy authored and David S. Miller committed Oct 27, 2017
1 parent 08c4901 commit 6f92a65
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Showing 5 changed files with 211 additions and 0 deletions.
36 changes: 36 additions & 0 deletions drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,13 @@ struct cudbg_rss_vf_conf {
u32 rss_vf_vfh;
};

struct cudbg_pm_stats {
u32 tx_cnt[T6_PM_NSTATS];
u32 rx_cnt[T6_PM_NSTATS];
u64 tx_cyc[T6_PM_NSTATS];
u64 rx_cyc[T6_PM_NSTATS];
};

struct cudbg_hw_sched {
u32 kbps[NTX_SCHED];
u32 ipg[NTX_SCHED];
Expand Down Expand Up @@ -85,6 +92,22 @@ struct cudbg_cim_pif_la {
u8 data[0];
};

struct cudbg_clk_info {
u64 retransmit_min;
u64 retransmit_max;
u64 persist_timer_min;
u64 persist_timer_max;
u64 keepalive_idle_timer;
u64 keepalive_interval;
u64 initial_srtt;
u64 finwait2_timer;
u32 dack_timer;
u32 res;
u32 cclk_ps;
u32 tre;
u32 dack_re;
};

struct cudbg_tid_info_region {
u32 ntids;
u32 nstids;
Expand Down Expand Up @@ -143,6 +166,19 @@ struct cudbg_mps_tcam {
u8 reserved[2];
};

struct cudbg_vpd_data {
u8 sn[SERNUM_LEN + 1];
u8 bn[PN_LEN + 1];
u8 na[MACADDR_LEN + 1];
u8 mn[ID_LEN + 1];
u16 fw_major;
u16 fw_minor;
u16 fw_micro;
u16 fw_build;
u32 scfg_vers;
u32 vpd_vers;
};

#define CUDBG_NUM_ULPTX 11
#define CUDBG_NUM_ULPTX_READ 512

Expand Down
5 changes: 5 additions & 0 deletions drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h
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Original file line number Diff line number Diff line change
Expand Up @@ -49,18 +49,23 @@ enum cudbg_dbg_entity_type {
CUDBG_EDC1 = 19,
CUDBG_RSS = 22,
CUDBG_RSS_VF_CONF = 25,
CUDBG_PATH_MTU = 27,
CUDBG_PM_STATS = 30,
CUDBG_HW_SCHED = 31,
CUDBG_TP_INDIRECT = 36,
CUDBG_SGE_INDIRECT = 37,
CUDBG_ULPRX_LA = 41,
CUDBG_TP_LA = 43,
CUDBG_CIM_PIF_LA = 45,
CUDBG_CLK = 46,
CUDBG_CIM_OBQ_RXQ0 = 47,
CUDBG_CIM_OBQ_RXQ1 = 48,
CUDBG_PCIE_INDIRECT = 50,
CUDBG_PM_INDIRECT = 51,
CUDBG_TID_INFO = 54,
CUDBG_MPS_TCAM = 57,
CUDBG_VPD_DATA = 58,
CUDBG_CCTRL = 60,
CUDBG_MA_INDIRECT = 61,
CUDBG_ULPTX_LA = 62,
CUDBG_UP_CIM_INDIRECT = 64,
Expand Down
135 changes: 135 additions & 0 deletions drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
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Original file line number Diff line number Diff line change
Expand Up @@ -574,6 +574,44 @@ int cudbg_collect_rss_vf_config(struct cudbg_init *pdbg_init,
return rc;
}

int cudbg_collect_path_mtu(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
{
struct adapter *padap = pdbg_init->adap;
struct cudbg_buffer temp_buff = { 0 };
int rc;

rc = cudbg_get_buff(dbg_buff, NMTUS * sizeof(u16), &temp_buff);
if (rc)
return rc;

t4_read_mtu_tbl(padap, (u16 *)temp_buff.data, NULL);
cudbg_write_and_release_buff(&temp_buff, dbg_buff);
return rc;
}

int cudbg_collect_pm_stats(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
{
struct adapter *padap = pdbg_init->adap;
struct cudbg_buffer temp_buff = { 0 };
struct cudbg_pm_stats *pm_stats_buff;
int rc;

rc = cudbg_get_buff(dbg_buff, sizeof(struct cudbg_pm_stats),
&temp_buff);
if (rc)
return rc;

pm_stats_buff = (struct cudbg_pm_stats *)temp_buff.data;
t4_pmtx_get_stats(padap, pm_stats_buff->tx_cnt, pm_stats_buff->tx_cyc);
t4_pmrx_get_stats(padap, pm_stats_buff->rx_cnt, pm_stats_buff->rx_cyc);
cudbg_write_and_release_buff(&temp_buff, dbg_buff);
return rc;
}

int cudbg_collect_hw_sched(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
Expand Down Expand Up @@ -813,6 +851,55 @@ int cudbg_collect_cim_pif_la(struct cudbg_init *pdbg_init,
return rc;
}

int cudbg_collect_clk_info(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
{
struct adapter *padap = pdbg_init->adap;
struct cudbg_buffer temp_buff = { 0 };
struct cudbg_clk_info *clk_info_buff;
u64 tp_tick_us;
int rc;

if (!padap->params.vpd.cclk)
return CUDBG_STATUS_CCLK_NOT_DEFINED;

rc = cudbg_get_buff(dbg_buff, sizeof(struct cudbg_clk_info),
&temp_buff);
if (rc)
return rc;

clk_info_buff = (struct cudbg_clk_info *)temp_buff.data;
clk_info_buff->cclk_ps = 1000000000 / padap->params.vpd.cclk; /* psec */
clk_info_buff->res = t4_read_reg(padap, TP_TIMER_RESOLUTION_A);
clk_info_buff->tre = TIMERRESOLUTION_G(clk_info_buff->res);
clk_info_buff->dack_re = DELAYEDACKRESOLUTION_G(clk_info_buff->res);
tp_tick_us = (clk_info_buff->cclk_ps << clk_info_buff->tre) / 1000000;

clk_info_buff->dack_timer =
(clk_info_buff->cclk_ps << clk_info_buff->dack_re) / 1000000 *
t4_read_reg(padap, TP_DACK_TIMER_A);
clk_info_buff->retransmit_min =
tp_tick_us * t4_read_reg(padap, TP_RXT_MIN_A);
clk_info_buff->retransmit_max =
tp_tick_us * t4_read_reg(padap, TP_RXT_MAX_A);
clk_info_buff->persist_timer_min =
tp_tick_us * t4_read_reg(padap, TP_PERS_MIN_A);
clk_info_buff->persist_timer_max =
tp_tick_us * t4_read_reg(padap, TP_PERS_MAX_A);
clk_info_buff->keepalive_idle_timer =
tp_tick_us * t4_read_reg(padap, TP_KEEP_IDLE_A);
clk_info_buff->keepalive_interval =
tp_tick_us * t4_read_reg(padap, TP_KEEP_INTVL_A);
clk_info_buff->initial_srtt =
tp_tick_us * INITSRTT_G(t4_read_reg(padap, TP_INIT_SRTT_A));
clk_info_buff->finwait2_timer =
tp_tick_us * t4_read_reg(padap, TP_FINWAIT2_TIMER_A);

cudbg_write_and_release_buff(&temp_buff, dbg_buff);
return rc;
}

int cudbg_collect_pcie_indirect(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
Expand Down Expand Up @@ -1196,6 +1283,54 @@ int cudbg_collect_mps_tcam(struct cudbg_init *pdbg_init,
return rc;
}

int cudbg_collect_vpd_data(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
{
struct adapter *padap = pdbg_init->adap;
struct cudbg_buffer temp_buff = { 0 };
struct cudbg_vpd_data *vpd_data;
int rc;

rc = cudbg_get_buff(dbg_buff, sizeof(struct cudbg_vpd_data),
&temp_buff);
if (rc)
return rc;

vpd_data = (struct cudbg_vpd_data *)temp_buff.data;
memcpy(vpd_data->sn, padap->params.vpd.sn, SERNUM_LEN + 1);
memcpy(vpd_data->bn, padap->params.vpd.pn, PN_LEN + 1);
memcpy(vpd_data->na, padap->params.vpd.na, MACADDR_LEN + 1);
memcpy(vpd_data->mn, padap->params.vpd.id, ID_LEN + 1);
vpd_data->scfg_vers = padap->params.scfg_vers;
vpd_data->vpd_vers = padap->params.vpd_vers;
vpd_data->fw_major = FW_HDR_FW_VER_MAJOR_G(padap->params.fw_vers);
vpd_data->fw_minor = FW_HDR_FW_VER_MINOR_G(padap->params.fw_vers);
vpd_data->fw_micro = FW_HDR_FW_VER_MICRO_G(padap->params.fw_vers);
vpd_data->fw_build = FW_HDR_FW_VER_BUILD_G(padap->params.fw_vers);
cudbg_write_and_release_buff(&temp_buff, dbg_buff);
return rc;
}

int cudbg_collect_cctrl(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
{
struct adapter *padap = pdbg_init->adap;
struct cudbg_buffer temp_buff = { 0 };
u32 size;
int rc;

size = sizeof(u16) * NMTUS * NCCTRL_WIN;
rc = cudbg_get_buff(dbg_buff, size, &temp_buff);
if (rc)
return rc;

t4_read_cong_tbl(padap, (void *)temp_buff.data);
cudbg_write_and_release_buff(&temp_buff, dbg_buff);
return rc;
}

int cudbg_collect_ma_indirect(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
Expand Down
15 changes: 15 additions & 0 deletions drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,12 @@ int cudbg_collect_rss_vf_config(struct cudbg_init *pdbg_init,
int cudbg_collect_tp_indirect(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_path_mtu(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_pm_stats(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_hw_sched(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
Expand All @@ -99,6 +105,9 @@ int cudbg_collect_tp_la(struct cudbg_init *pdbg_init,
int cudbg_collect_cim_pif_la(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_clk_info(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_obq_sge_rx_q0(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
Expand All @@ -117,6 +126,12 @@ int cudbg_collect_tid(struct cudbg_init *pdbg_init,
int cudbg_collect_mps_tcam(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_vpd_data(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_cctrl(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
int cudbg_collect_ma_indirect(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
Expand Down
20 changes: 20 additions & 0 deletions drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -46,18 +46,23 @@ static const struct cxgb4_collect_entity cxgb4_collect_hw_dump[] = {
{ CUDBG_CIM_OBQ_NCSI, cudbg_collect_cim_obq_ncsi },
{ CUDBG_RSS, cudbg_collect_rss },
{ CUDBG_RSS_VF_CONF, cudbg_collect_rss_vf_config },
{ CUDBG_PATH_MTU, cudbg_collect_path_mtu },
{ CUDBG_PM_STATS, cudbg_collect_pm_stats },
{ CUDBG_HW_SCHED, cudbg_collect_hw_sched },
{ CUDBG_TP_INDIRECT, cudbg_collect_tp_indirect },
{ CUDBG_SGE_INDIRECT, cudbg_collect_sge_indirect },
{ CUDBG_ULPRX_LA, cudbg_collect_ulprx_la },
{ CUDBG_TP_LA, cudbg_collect_tp_la },
{ CUDBG_CIM_PIF_LA, cudbg_collect_cim_pif_la },
{ CUDBG_CLK, cudbg_collect_clk_info },
{ CUDBG_CIM_OBQ_RXQ0, cudbg_collect_obq_sge_rx_q0 },
{ CUDBG_CIM_OBQ_RXQ1, cudbg_collect_obq_sge_rx_q1 },
{ CUDBG_PCIE_INDIRECT, cudbg_collect_pcie_indirect },
{ CUDBG_PM_INDIRECT, cudbg_collect_pm_indirect },
{ CUDBG_TID_INFO, cudbg_collect_tid },
{ CUDBG_MPS_TCAM, cudbg_collect_mps_tcam },
{ CUDBG_VPD_DATA, cudbg_collect_vpd_data },
{ CUDBG_CCTRL, cudbg_collect_cctrl },
{ CUDBG_MA_INDIRECT, cudbg_collect_ma_indirect },
{ CUDBG_ULPTX_LA, cudbg_collect_ulptx_la },
{ CUDBG_UP_CIM_INDIRECT, cudbg_collect_up_cim_indirect },
Expand Down Expand Up @@ -157,6 +162,12 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
len = adap->params.arch.vfcount *
sizeof(struct cudbg_rss_vf_conf);
break;
case CUDBG_PATH_MTU:
len = NMTUS * sizeof(u16);
break;
case CUDBG_PM_STATS:
len = sizeof(struct cudbg_pm_stats);
break;
case CUDBG_HW_SCHED:
len = sizeof(struct cudbg_hw_sched);
break;
Expand Down Expand Up @@ -191,6 +202,9 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
len = sizeof(struct cudbg_cim_pif_la);
len += 2 * CIM_PIFLA_SIZE * 6 * sizeof(u32);
break;
case CUDBG_CLK:
len = sizeof(struct cudbg_clk_info);
break;
case CUDBG_PCIE_INDIRECT:
n = sizeof(t5_pcie_pdbg_array) / (IREG_NUM_ELEM * sizeof(u32));
len = sizeof(struct ireg_buf) * n * 2;
Expand All @@ -206,6 +220,12 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
len = sizeof(struct cudbg_mps_tcam) *
adap->params.arch.mps_tcam_size;
break;
case CUDBG_VPD_DATA:
len = sizeof(struct cudbg_vpd_data);
break;
case CUDBG_CCTRL:
len = sizeof(u16) * NMTUS * NCCTRL_WIN;
break;
case CUDBG_MA_INDIRECT:
if (CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5) {
n = sizeof(t6_ma_ireg_array) /
Expand Down

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