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dmadev: support telemetry dump dmadev

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This patch supports telemetry dump dmadev.

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
This commit is contained in:
Chengwen Feng 2022-09-13 07:13:41 +00:00 committed by David Marchand
parent 6d03ef606b
commit 94043b0421
1 changed files with 43 additions and 0 deletions
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43
lib/dmadev/rte_dmadev.c
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@ -994,6 +994,45 @@ dmadev_handle_dev_stats(const char *cmd __rte_unused,
return 0;
}
#ifndef RTE_EXEC_ENV_WINDOWS
static int
dmadev_handle_dev_dump(const char *cmd __rte_unused,
const char *params,
struct rte_tel_data *d)
{
char *buf, *end_param;
int dev_id, ret;
FILE *f;
if (params == NULL || strlen(params) == 0 || !isdigit(*params))
return -EINVAL;
dev_id = strtoul(params, &end_param, 0);
if (*end_param != '\0')
RTE_DMA_LOG(WARNING, "Extra parameters passed to dmadev telemetry command, ignoring");
buf = calloc(sizeof(char), RTE_TEL_MAX_SINGLE_STRING_LEN);
if (buf == NULL)
return -ENOMEM;
f = fmemopen(buf, RTE_TEL_MAX_SINGLE_STRING_LEN - 1, "w+");
if (f == NULL) {
free(buf);
return -EINVAL;
}
ret = rte_dma_dump(dev_id, f);
fclose(f);
if (ret == 0) {
rte_tel_data_start_dict(d);
rte_tel_data_string(d, buf);
}
free(buf);
return ret;
}
#endif /* !RTE_EXEC_ENV_WINDOWS */
RTE_INIT(dmadev_init_telemetry)
{
rte_telemetry_register_cmd("/dmadev/list", dmadev_handle_dev_list,
@ -1002,4 +1041,8 @@ RTE_INIT(dmadev_init_telemetry)
"Returns information for a dmadev. Parameters: int dev_id");
rte_telemetry_register_cmd("/dmadev/stats", dmadev_handle_dev_stats,
"Returns the stats for a dmadev vchannel. Parameters: int dev_id, vchan_id (Optional if only one vchannel)");
#ifndef RTE_EXEC_ENV_WINDOWS
rte_telemetry_register_cmd("/dmadev/dump", dmadev_handle_dev_dump,
"Returns dump information for a dmadev. Parameters: int dev_id");
#endif
}