From: Chengwen Feng fengchengwen@huawei.com
This patch supports telemetry dump dmadev.
Signed-off-by: Chengwen Feng fengchengwen@huawei.com Acked-by: Morten Brørup mb@smartsharesystems.com --- lib/dmadev/rte_dmadev.c | 43 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+)
diff --git a/lib/dmadev/rte_dmadev.c b/lib/dmadev/rte_dmadev.c index 174d4c40ae..ea1cb815b4 100644 --- a/lib/dmadev/rte_dmadev.c +++ b/lib/dmadev/rte_dmadev.c @@ -985,6 +985,45 @@ 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, @@ -993,4 +1032,8 @@ 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 }