[v2,1/2] lib/ethdev: add reverse macro to quit testpmd
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Commit Message
From: wenxuan wu <wenxuanx.wu@intel.com>
There is a heap-free-after-use bug when quit testpmd
with pf and vfs, stop and close ports in reverse order
is a more reasonable approach.
Cc: stable@dpdk.org
Signed-off-by: wenxuan wu <wenxuanx.wu@intel.com>
---
lib/ethdev/rte_ethdev.h | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
@@ -2185,7 +2185,8 @@ struct rte_eth_dev_owner {
* @return
* Next valid port ID owned by owner_id, RTE_MAX_ETHPORTS if there is none.
*/
-uint64_t rte_eth_find_next_owned_by(uint16_t port_id,
+uint64_t
+rte_eth_find_next_owned_by(uint16_t port_id,
const uint64_t owner_id);
/**
@@ -2212,6 +2213,14 @@ uint16_t rte_eth_find_next(uint16_t port_id);
#define RTE_ETH_FOREACH_DEV(p) \
RTE_ETH_FOREACH_DEV_OWNED_BY(p, RTE_ETH_DEV_NO_OWNER)
+/**
+ * Macro to iterate over all enabled and ownerless ethdev ports in reverse order.
+ */
+#define RTE_ETH_FOREACH_DEV_REVERSE(p) \
+ for (p = rte_eth_dev_count_total() - 1; \
+ p < rte_eth_dev_count_total(); \
+ p--)
+
/**
* Iterates over ethdev ports of a specified device.
*