Add an ASSERT macro for the enic driver which is enabled when the log
level is >= RTE_LOG_DEBUG. Assert that number of mbufs to return to
the pool in the Tx function is never greater than the max allowed.
Signed-off-by: John Daley <johndale at cisco.com>
---
drivers/net/enic/enic.h | 12 ++++++++++++
drivers/net/enic/enic_rxtx.c | 1 +
2 files changed, 13 insertions(+)
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 4eb28ee..4b76e6d 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -187,6 +187,18 @@ enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
return idx;
}
+#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
+#define ENIC_ASSERT(cond) \
+ do { \
+ if (unlikely(!(cond))) { \
+ rte_panic("line %d\tassert \"" #cond "\"" \
+ "failed\n", __LINE__); \
+ } \
+ } while (0)
+#else
+#define ENIC_ASSERT(cond) do {} while (0)
+#endif
+
extern void enic_fdir_stats_get(struct enic *enic,
struct rte_eth_fdir_stats *stats);
extern int enic_fdir_add_fltr(struct enic *enic,
diff --git a/drivers/net/enic/enic_rxtx.c b/drivers/net/enic/enic_rxtx.c
index a04ebd0..7527bce 100644
--- a/drivers/net/enic/enic_rxtx.c
+++ b/drivers/net/enic/enic_rxtx.c
@@ -343,6 +343,7 @@ static inline void enic_free_wq_bufs(struct vnic_wq *wq,
u16 completed_index)
buf = &wq->bufs[tail_idx];
m = (struct rte_mbuf *)(buf->mb);
if (likely(m->pool == pool)) {
+ ENIC_ASSERT(nb_free < ENIC_MAX_WQ_DESCS);
free[nb_free++] = m;
} else {
rte_mempool_put_bulk(pool, (void *)free, nb_free);
--
2.7.0
