ethdev: fix data type in TC queues

Currently, base and nb_queue in the tc_rxq and tc_txq information
of queue and TC mapping on both TX and RX paths are uint8_t.
However, these data will be truncated when queue number under a TC
is greater than 256. So it is necessary for base and nb_queue to
change from uint8_t to uint16_t.

Fixes: 89d6728c7837 ("ethdev: get DCB information")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Reviewed-by: Dongdong Liu <liudongdong3@huawei.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst
index 6df6e99..02f0eb0 100644 (file)
--- a/doc/guides/rel_notes/release_20_11.rst
+++ b/doc/guides/rel_notes/release_20_11.rst
@@ -227,6 +227,11 @@ API Changes
   * ``_rte_eth_dev_callback_process()`` -> ``rte_eth_dev_callback_process()``
   * ``_rte_eth_dev_reset`` -> ``rte_eth_dev_internal_reset()``
 
+* ethdev: Modified field type of ``base`` and ``nb_queue`` in struct
+  ``rte_eth_dcb_tc_queue_mapping`` from ``uint8_t`` to ``uint16_t``.
+  As the data of ``uint8_t`` will be truncated when queue number under
+  a TC is greater than 256.
+
 * vhost: Moved vDPA APIs from experimental to stable.
 
 * rawdev: Added a structure size parameter to the functions

diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
index d2bf74f..15b2f6d 100644 (file)
--- a/lib/librte_ethdev/rte_ethdev.h
+++ b/lib/librte_ethdev/rte_ethdev.h
@@ -1522,13 +1522,13 @@ struct rte_eth_xstat_name {
 struct rte_eth_dcb_tc_queue_mapping {
        /** rx queues assigned to tc per Pool */
        struct {
-               uint8_t base;
-               uint8_t nb_queue;
+               uint16_t base;
+               uint16_t nb_queue;
        } tc_rxq[ETH_MAX_VMDQ_POOL][ETH_DCB_NUM_TCS];
        /** rx queues assigned to tc per Pool */
        struct {
-               uint8_t base;
-               uint8_t nb_queue;
+               uint16_t base;
+               uint16_t nb_queue;
        } tc_txq[ETH_MAX_VMDQ_POOL][ETH_DCB_NUM_TCS];
 };