app/testpmd: give more hint on invalid RETA size

Print the valid RTE size range so that user knows what goes wrong.

Signed-off-by: Yuanhan Liu <yliu@fridaylinux.org>

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 828d697..20e04f7 100644 (file)
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -2196,12 +2196,14 @@ cmd_showport_reta_parsed(void *parsed_result,
        struct cmd_showport_reta *res = parsed_result;
        struct rte_eth_rss_reta_entry64 reta_conf[8];
        struct rte_eth_dev_info dev_info;
+       uint16_t max_reta_size;
 
        memset(&dev_info, 0, sizeof(dev_info));
        rte_eth_dev_info_get(res->port_id, &dev_info);
-       if (dev_info.reta_size == 0 || res->size > dev_info.reta_size ||
-                               res->size > ETH_RSS_RETA_SIZE_512) {
-               printf("Invalid redirection table size: %u\n", res->size);
+       max_reta_size = RTE_MIN(dev_info.reta_size, ETH_RSS_RETA_SIZE_512);
+       if (res->size == 0 || res->size > max_reta_size) {
+               printf("Invalid redirection table size: %u (1-%u)\n",
+                       res->size, max_reta_size);
                return;
        }