If the socket ID of a device is unknown, rte_eth_dev_socket_id(portid)
now returns -1 instead of 0 since commit 7dcd73e37965 ("drivers/bus: set
device NUMA node to unknown by default").

This change breaks the pmd_perf test on environment where the device
socket ID is unknown. The test fails with the following error, because
it does not find a lcore on socket -1:

> No avail lcore to run test

Take the new behavior in account in the pmd_perf test: in this
environment, the test can now run on any lcore, and not only those from
socket 0 (this was the old behavior).

Bugzilla ID: 1105
Fixes: 7dcd73e37965 ("drivers/bus: set device NUMA node to unknown by default")

Signed-off-by: Olivier Matz <olivier.m...@6wind.com>
---
 app/test/test_pmd_perf.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/app/test/test_pmd_perf.c b/app/test/test_pmd_perf.c
index fe765c4173..300c3a8a6f 100644
--- a/app/test/test_pmd_perf.c
+++ b/app/test/test_pmd_perf.c
@@ -265,13 +265,14 @@ init_mbufpool(unsigned nb_mbuf)
 }
 
 static uint16_t
-alloc_lcore(uint16_t socketid)
+alloc_lcore(int socketid)
 {
        unsigned lcore_id;
 
        for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
                if (LCORE_AVAIL != lcore_conf[lcore_id].status ||
-                   lcore_conf[lcore_id].socketid != socketid ||
+                   (socketid != -SOCKET_ID_ANY &&
+                    lcore_conf[lcore_id].socketid != socketid) ||
                    lcore_id == rte_get_main_lcore())
                        continue;
                lcore_conf[lcore_id].status = LCORE_USED;
@@ -711,17 +712,18 @@ test_pmd_perf(void)
        num = 0;
        RTE_ETH_FOREACH_DEV(portid) {
                if (socketid == -1) {
-                       socketid = rte_eth_dev_socket_id(portid);
-                       worker_id = alloc_lcore(socketid);
+                       worker_id = alloc_lcore(rte_eth_dev_socket_id(portid));
                        if (worker_id == (uint16_t)-1) {
                                printf("No avail lcore to run test\n");
                                return -1;
                        }
+                       socketid = rte_lcore_to_socket_id(worker_id);
                        printf("Performance test runs on lcore %u socket %u\n",
                               worker_id, socketid);
                }
 
-               if (socketid != rte_eth_dev_socket_id(portid)) {
+               if (socketid != rte_eth_dev_socket_id(portid) &&
+                   rte_eth_dev_socket_id(portid) != SOCKET_ID_ANY) {
                        printf("Skip port %d\n", portid);
                        continue;
                }
-- 
2.30.2

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