在 2023/2/21 23:44, Shiyang He 写道:
Under multi-process scenario, the secondary process gets queue state
from the wrong location (the global variable 'ports'). Therefore, the
secondary process can not forward since "stream_init" is not called.

This commit fixes the issue by calling 'rte_eth_rx/tx_queue_info_get'
to get queue state from shared memory.

Fixes: 3c4426db54fc ("app/testpmd: do not poll stopped queues")
Cc: sta...@dpdk.org

Signed-off-by: Shiyang He <shiyangx...@intel.com>
Acked-by: Yuying Zhang <yuying.zh...@intel.com>

v2: Add function return value processing
---
  app/test-pmd/testpmd.c | 35 +++++++++++++++++++++++++++++++++--
  1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 0c14325b8d..b450f3f6c4 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -2418,9 +2418,40 @@ start_packet_forwarding(int with_tx_first)
        if (!pkt_fwd_shared_rxq_check())
                return;
- if (stream_init != NULL)
-               for (i = 0; i < cur_fwd_config.nb_fwd_streams; i++)
+       if (stream_init != NULL) {
+               for (i = 0; i < cur_fwd_config.nb_fwd_streams; i++) {
+                       if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+                               struct fwd_stream *fs = fwd_streams[i];
+                               struct rte_eth_rxq_info rx_qinfo;
+                               struct rte_eth_txq_info tx_qinfo;
+                               int32_t rc;
+                               rc = rte_eth_rx_queue_info_get(fs->rx_port,
+                                               fs->rx_queue, &rx_qinfo);
+                               if (!rc)
+                                       
ports[fs->rx_port].rxq[fs->rx_queue].state =
+                                               rx_qinfo.queue_state;
+                               else if (-ENOTSUP == rc)
"rc != 0" and "rc == -ENOTSUP" style are always welcome in dpdk.
Additionally, it is better to add some comments about '-ENOTSUP' here, because this patch does not describe it anywhere.
+                                       
ports[fs->rx_port].rxq[fs->rx_queue].state =
+                                               RTE_ETH_QUEUE_STATE_STARTED;
+                               else
+                                       TESTPMD_LOG(WARNING,
+                                               "Failed to get rx queue 
info\n");
+
+                               rc = rte_eth_tx_queue_info_get(fs->tx_port,
+                                               fs->tx_queue, &tx_qinfo);
+                               if (!rc)
+                                       
ports[fs->tx_port].txq[fs->tx_queue].state =
+                                               tx_qinfo.queue_state;
+                               else if (-ENOTSUP == rc)
+                                       
ports[fs->tx_port].txq[fs->tx_queue].state =
+                                               RTE_ETH_QUEUE_STATE_STARTED;
+                               else
+                                       TESTPMD_LOG(WARNING,
+                                               "Failed to get tx queue 
info\n");
+                       }
                        stream_init(fwd_streams[i]);
+               }
+       }
port_fwd_begin = cur_fwd_config.fwd_eng->port_fwd_begin;
        if (port_fwd_begin != NULL) {

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