cxgb4: collect hardware misc dumps

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>

drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h

@@ -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];
@@ -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;
@@ -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
 

drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h

@@ -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,

drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c

@@ -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)
@@ -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)
@@ -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)

drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h

@@ -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);
@@ -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);
@@ -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);

drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c

@@ -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 },
@@ -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;
@@ -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;
@@ -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) /