u64 *parity);
int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
u64 *parity);
+void t4_pmtx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[]);
+void t4_pmrx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[]);
int t4_read_cim_ibq(struct adapter *adap, unsigned int qid, u32 *data,
size_t n);
int t4_read_cim_obq(struct adapter *adap, unsigned int qid, u32 *data,
.release = seq_release_private
};
+/* Show the PM memory stats. These stats include:
+ *
+ * TX:
+ * Read: memory read operation
+ * Write Bypass: cut-through
+ * Bypass + mem: cut-through and save copy
+ *
+ * RX:
+ * Read: memory read
+ * Write Bypass: cut-through
+ * Flush: payload trim or drop
+ */
+static int pm_stats_show(struct seq_file *seq, void *v)
+{
+ static const char * const tx_pm_stats[] = {
+ "Read:", "Write bypass:", "Write mem:", "Bypass + mem:"
+ };
+ static const char * const rx_pm_stats[] = {
+ "Read:", "Write bypass:", "Write mem:", "Flush:"
+ };
+
+ int i;
+ u32 tx_cnt[PM_NSTATS], rx_cnt[PM_NSTATS];
+ u64 tx_cyc[PM_NSTATS], rx_cyc[PM_NSTATS];
+ struct adapter *adap = seq->private;
+
+ t4_pmtx_get_stats(adap, tx_cnt, tx_cyc);
+ t4_pmrx_get_stats(adap, rx_cnt, rx_cyc);
+
+ seq_printf(seq, "%13s %10s %20s\n", " ", "Tx pcmds", "Tx bytes");
+ for (i = 0; i < PM_NSTATS - 1; i++)
+ seq_printf(seq, "%-13s %10u %20llu\n",
+ tx_pm_stats[i], tx_cnt[i], tx_cyc[i]);
+
+ seq_printf(seq, "%13s %10s %20s\n", " ", "Rx pcmds", "Rx bytes");
+ for (i = 0; i < PM_NSTATS - 1; i++)
+ seq_printf(seq, "%-13s %10u %20llu\n",
+ rx_pm_stats[i], rx_cnt[i], rx_cyc[i]);
+ return 0;
+}
+
+static int pm_stats_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pm_stats_show, inode->i_private);
+}
+
+static ssize_t pm_stats_clear(struct file *file, const char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct adapter *adap = FILE_DATA(file)->i_private;
+
+ t4_write_reg(adap, PM_RX_STAT_CONFIG_A, 0);
+ t4_write_reg(adap, PM_TX_STAT_CONFIG_A, 0);
+ return count;
+}
+
+static const struct file_operations pm_stats_debugfs_fops = {
+ .owner = THIS_MODULE,
+ .open = pm_stats_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = pm_stats_clear
+};
+
/* Firmware Device Log dump. */
static const char * const devlog_level_strings[] = {
[FW_DEVLOG_LEVEL_EMERG] = "EMERG",
{ "obq_ulp3", &cim_obq_fops, S_IRUSR, 3 },
{ "obq_sge", &cim_obq_fops, S_IRUSR, 4 },
{ "obq_ncsi", &cim_obq_fops, S_IRUSR, 5 },
+ { "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 },
#if IS_ENABLED(CONFIG_IPV6)
{ "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 },
#endif
}
/**
+ * 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
NMTUS = 16, /* size of MTU table */
NCCTRL_WIN = 32, /* # of congestion control windows */
L2T_SIZE = 4096, /* # of L2T entries */
+ PM_NSTATS = 5, /* # of PM stats */
MBOX_LEN = 64, /* mailbox size in bytes */
TRACE_LEN = 112, /* length of trace data and mask */
FILTER_OPT_LEN = 36, /* filter tuple width for optional components */
#define PBL_BOUND_ERR_CH0_F PBL_BOUND_ERR_CH0_V(1U)
#define PM_RX_INT_CAUSE_A 0x8fdc
+#define PM_RX_STAT_CONFIG_A 0x8fc8
+#define PM_RX_STAT_COUNT_A 0x8fcc
+#define PM_RX_STAT_LSB_A 0x8fd0
+#define PM_RX_DBG_CTRL_A 0x8fd0
+#define PM_RX_DBG_DATA_A 0x8fd4
+#define PM_RX_DBG_STAT_MSB_A 0x10013
#define PMRX_FRAMING_ERROR_F 0x003ffff0U
#define PMRX_E_PCMD_PAR_ERROR_F PMRX_E_PCMD_PAR_ERROR_V(1U)
#define PM_TX_INT_CAUSE_A 0x8ffc
+#define PM_TX_STAT_CONFIG_A 0x8fe8
+#define PM_TX_STAT_COUNT_A 0x8fec
+#define PM_TX_STAT_LSB_A 0x8ff0
+#define PM_TX_DBG_CTRL_A 0x8ff0
+#define PM_TX_DBG_DATA_A 0x8ff4
+#define PM_TX_DBG_STAT_MSB_A 0x1001a
#define PCMD_LEN_OVFL0_S 31
#define PCMD_LEN_OVFL0_V(x) ((x) << PCMD_LEN_OVFL0_S)
projects / platform / kernel / linux-exynos.git / commitdiff