return err;
}
+static void ioLatencyHistogramOutput(FILE *fd, int index, int start, int end, char *unit0,
+ char *unit1, unsigned int *pHistogram, int print)
+{
+ int len;
+ char string[64], subString0[12], subString1[12];
+
+ len = snprintf(subString0, sizeof(subString0), "%d%s", start, unit0);
+ if (end != 0x7FFFFFFF)
+ {
+ len = snprintf(subString1, sizeof(subString1), "%d%s", end, unit1);
+ }
+ else
+ {
+ len = snprintf(subString1, sizeof(subString1), "%s", "+INF");
+ }
+ len = snprintf(string, sizeof(string), "%-11d %-11s %-11s %-11u\n", index, subString0, subString1,
+ pHistogram[index]);
+ fwrite(string, 1, len, fd);
+ if (print)
+ {
+ printf("%s", string);
+ }
+}
+
+#define GLP_ID_VU_GET_READ_LATENCY_HISTOGRAM 0xC1
+#define GLP_ID_VU_GET_WRITE_LATENCY_HISTOGRAM 0xC2
+
+int io_latency_histogram(char *file, char *buf, int print, int logid)
+{
+ FILE *fdi = fopen(file, "w+");
+ int i, index;
+ char unit[2][3];
+ unsigned int *revision = (unsigned int *)buf;
+
+ if (logid == GLP_ID_VU_GET_READ_LATENCY_HISTOGRAM)
+ {
+ fPRINT_PARAM1("Memblaze IO Read Command Latency Histogram\n");
+ }
+ else if (logid == GLP_ID_VU_GET_WRITE_LATENCY_HISTOGRAM)
+ {
+ fPRINT_PARAM1("Memblaze IO Write Command Latency Histogram\n");
+ }
+ fPRINT_PARAM2("Major Revision : %d\n", revision[1]);
+ fPRINT_PARAM2("Minor Revision : %d\n", revision[0]);
+ buf += 8;
+
+ if (revision[1] == 1 && revision[0] == 0)
+ {
+ fPRINT_PARAM1("--------------------------------------------------\n");
+ fPRINT_PARAM1("Bucket Start End Value \n");
+ fPRINT_PARAM1("--------------------------------------------------\n");
+ index = 0;
+ strcpy(unit[0], "us");
+ strcpy(unit[1], "us");
+ for (i = 0; i < 32; i++, index++)
+ {
+ if (i == 31)
+ {
+ strcpy(unit[1], "ms");
+ ioLatencyHistogramOutput(fdi, index, i * 32, 1, unit[0], unit[1], (unsigned int *)buf, print);
+ }
+ else
+ {
+ ioLatencyHistogramOutput(fdi, index, i * 32, (i + 1) * 32, unit[0], unit[1], (unsigned int *)buf,
+ print);
+ }
+ }
+
+ strcpy(unit[0], "ms");
+ strcpy(unit[1], "ms");
+ for (i = 1; i < 32; i++, index++)
+ {
+ ioLatencyHistogramOutput(fdi, index, i, i + 1, unit[0], unit[1], (unsigned int *)buf, print);
+ }
+
+ for (i = 1; i < 32; i++, index++)
+ {
+ if (i == 31)
+ {
+ strcpy(unit[1], "s");
+ ioLatencyHistogramOutput(fdi, index, i * 32, 1, unit[0], unit[1], (unsigned int *)buf, print);
+ }
+ else
+ {
+ ioLatencyHistogramOutput(fdi, index, i * 32, (i + 1) * 32, unit[0], unit[1], (unsigned int *)buf,
+ print);
+ }
+ }
+
+ strcpy(unit[0], "s");
+ strcpy(unit[1], "s");
+ for (i = 1; i < 4; i++, index++)
+ {
+ ioLatencyHistogramOutput(fdi, index, i, i + 1, unit[0], unit[1], (unsigned int *)buf, print);
+ }
+
+ ioLatencyHistogramOutput(fdi, index, i, 0x7FFFFFFF, unit[0], unit[1], (unsigned int *)buf, print);
+ }
+ else
+ {
+ fPRINT_PARAM1("Unsupported io latency histogram revision\n");
+ }
+
+ fclose(fdi);
+ return 1;
+}
+
+#define LAT_STATS_BUFFER_SIZE 0x1000
+#define DO_PRINT_FLAG 1
+#define NOT_PRINT_FLAG 0
+#define FID_C1_LOG_FILENAME "log_c1.csv"
+#define FID_C2_LOG_FILENAME "log_c2.csv"
+
+static int mb_lat_stats_log_print(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ char stats[LAT_STATS_BUFFER_SIZE];
+ int err = 0;
+ int fd;
+ char f1[] = FID_C1_LOG_FILENAME;
+ char f2[] = FID_C2_LOG_FILENAME;
+
+ const char *desc = "Get Latency Statistics log and show it.";
+ const char *write = "Get write statistics (read default)";
+
+ struct config {
+ int write;
+ };
+ struct config cfg;
+
+ OPT_ARGS(opts) = {
+ OPT_FLAG("write", 'w', &cfg.write, write),
+ OPT_END()
+ };
+
+ fd = parse_and_open(argc, argv, desc, opts);
+ if (fd < 0) return fd;
+
+ err = nvme_get_log(fd, NVME_NSID_ALL, cfg.write ? 0xc2 : 0xc1, false, NVME_NO_LOG_LSP, sizeof(stats), &stats);
+ if (!err)
+ io_latency_histogram(cfg.write ? f2 : f1, stats, DO_PRINT_FLAG,
+ cfg.write ? GLP_ID_VU_GET_WRITE_LATENCY_HISTOGRAM : GLP_ID_VU_GET_READ_LATENCY_HISTOGRAM);
+ else
+ fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(err), err);
+
+ close(fd);
+ return err;
+}
+
+static int mb_set_lat_stats(int argc, char **argv,
+ struct command *command, struct plugin *plugin)
+{
+ int err, fd;
+ const char *desc = (
+ "Enable/Disable Latency Statistics Tracking.\n"
+ "No argument prints current status.");
+ const char *enable_desc = "Enable LST";
+ const char *disable_desc = "Disable LST";
+ const __u32 nsid = 0;
+ const __u8 fid = 0xe2;
+ const __u8 sel = 0;
+ const __u32 cdw11 = 0x0;
+ const __u32 cdw12 = 0x0;
+ const __u32 data_len = 32;
+ const __u32 save = 0;
+ __u32 result;
+ void *buf = NULL;
+
+ struct config {
+ bool enable, disable;
+ };
+
+ struct config cfg = {
+ .enable = false,
+ .disable = false,
+ };
+
+ const struct argconfig_commandline_options command_line_options[] = {
+ {"enable", 'e', "", CFG_NONE, &cfg.enable, no_argument, enable_desc},
+ {"disable", 'd', "", CFG_NONE, &cfg.disable, no_argument, disable_desc},
+ {NULL}
+ };
+
+ fd = parse_and_open(argc, argv, desc, command_line_options);
+
+ enum Option {
+ None = -1,
+ True = 1,
+ False = 0,
+ };
+ enum Option option = None;
+
+ if (cfg.enable && cfg.disable)
+ printf("Cannot enable and disable simultaneously.");
+ else if (cfg.enable || cfg.disable)
+ option = cfg.enable;
+
+ if (fd < 0)
+ return fd;
+ switch (option) {
+ case None:
+ err = nvme_get_feature(fd, nsid, fid, sel, cdw11, data_len, buf,
+ &result);
+ if (!err) {
+ printf(
+ "Latency Statistics Tracking (FID 0x%X) is currently (%i).\n",
+ fid, result);
+ } else {
+ printf("Could not read feature id 0xE2.\n");
+ return err;
+ }
+ break;
+ case True:
+ case False:
+ err = nvme_set_feature(fd, nsid, fid, option, cdw12, save,
+ data_len, buf, &result);
+ if (err > 0) {
+ fprintf(stderr, "NVMe Status:%s(%x)\n",
+ nvme_status_to_string(err), err);
+ } else if (err < 0) {
+ perror("Enable latency tracking");
+ fprintf(stderr, "Command failed while parsing.\n");
+ } else {
+ printf("Successfully set enable bit for FID (0x%X) to %i.\n",
+ fid, option);
+ }
+ break;
+ default:
+ printf("%d not supported.\n", option);
+ return EINVAL;
+ }
+ return fd;
+}
+
u8 resv[SMART_INFO_NEW_SIZE - sizeof(struct nvme_p4_smart_log_item) * NR_SMART_ITEMS];
};
+// base
+#define DD do{ printf("=Memblaze= %s[%d]-%s():\n", __FILE__, __LINE__, __func__); }while(0)
+#define DE(str) do{ printf("===ERROR!=== %s[%d]-%s():str=%s\n", __FILE__, __LINE__, __func__, \
+ str); }while(0)
+// integer
+#define DI(i) do{ printf("=Memblaze= %s[%d]-%s():int=%d\n", __FILE__, __LINE__, __func__, \
+ (int)i); } while(0)
+#define DPI(prompt, i) do{ printf("=Memblaze= %s[%d]-%s():%s=%d\n", __FILE__, __LINE__, __func__, \
+ prompt, i); }while(0)
+#define DAI(prompt, i, arr, max) do{ printf("=Memblaze= %s[%d]-%s():%s", __FILE__, __LINE__, __func__, prompt); \
+ for(i=0;i<max;i++) printf(" %d:%d", i, arr[i]); \
+ printf("\n"); }while(0)
+// char
+#define DC(c) do{ printf("=Memblaze= %s[%d]-%s():char=%c\n", __FILE__, __LINE__, __func__, c); \
+ }while(0)
+#define DPC(prompt, c) do{ printf("=Memblaze= %s[%d]-%s():%s=%c\n", __FILE__, __LINE__, __func__, \
+ prompt, c); }while(0)
+// address
+#define DA(add) do{ printf("=Memblaze= %s[%d]-%s():address=0x%08X\n", __FILE__, __LINE__, \
+ __func__, add); }while(0)
+#define DPA(prompt, add) do{ printf("=Memblaze= %s[%d]-%s():%s=0x%08X\n", __FILE__, __LINE__, __func__, \
+ prompt, add); }while(0)
+// string
+#define DS(str) do{ printf("=Memblaze= %s[%d]-%s():str=%s\n", __FILE__, __LINE__, __func__, str); \
+ }while(0)
+#define DPS(prompt, str) do{ printf("=Memblaze= %s[%d]-%s():%s=%s\n", __FILE__, __LINE__, __func__, \
+ prompt, str); }while(0)
+#define DAS(prompt, i, arr, max) do{ printf("=Memblaze= %s[%d]-%s():%s", __FILE__, __LINE__, __func__, prompt); \
+ for(i=0;i<max;i++) printf(" %d:%s", i, arr[i]); \
+ printf("\n"); }while(0)
+// array
+#define DR(str, k) do{ int ip; for(ip=0;ip<k;ip++) if(NULL != argv[ip]) \
+ printf("=Memblaze= %s[%d]-%s():%d=%s\n", \
+ __FILE__, __LINE__, __func__, ip, str[ip]); }while(0)
+#define DARG do{ DPI("argc", argc); \
+ int ip; for(ip=0;ip<argc;ip++) if(NULL != argv[ip]) \
+ printf("=Memblaze= %s[%d]-%s():%d=%s\n", \
+ __FILE__, __LINE__, __func__, ip, argv[ip]); }while(0)
+
+#define fPRINT_PARAM1(format) \
+ { \
+ do \
+ { \
+ fprintf(fdi, format);\
+ if (print) \
+ { \
+ printf(format); \
+ } \
+ } while (0); \
+ }
+
+#define fPRINT_PARAM2(format, value) \
+ { \
+ do \
+ { \
+ fprintf(fdi, format, value);\
+ if (print) \
+ { \
+ printf(format, value); \
+ } \
+ } while (0); \
+ }
+
#endif // __MEMBLAZE_UTILS_H__
projects / users / sagi / nvme-cli.git / commitdiff