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From: John Daley <johndale@cisco.com>
To: dev@dpdk.org
Cc: bruce.richarsdon@intel.com, John Daley <johndale@cisco.com>
Subject: [PATCH v3 11/13] enic: add an enic assert macro
Date: Thu,  2 Jun 2016 17:22:55 -0700	[thread overview]
Message-ID: <1464913377-30879-12-git-send-email-johndale@cisco.com> (raw)
In-Reply-To: <1464913377-30879-1-git-send-email-johndale@cisco.com>

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@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

  parent reply	other threads:[~2016-06-03  0:23 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-24  6:32 [PATCH v2 00/11] enic counter fixes and Tx optimization John Daley
2016-05-24  6:32 ` [PATCH v2 01/11] enic: fix Rx drop counters John Daley
2016-05-24  6:32 ` [PATCH v2 02/11] enic: drop bad packets and remove unused Rx error flag John Daley
2016-05-24  6:32 ` [PATCH v2 03/11] enic: count truncated packets John Daley
2016-05-24  6:32 ` [PATCH v2 04/11] enic: put Tx and Rx functions into same file John Daley
2016-05-24  6:32 ` [PATCH v2 05/11] enic: remove some unused functions in Tx path John Daley
2016-05-24  6:32 ` [PATCH v2 06/11] enic: streamline mbuf handling " John Daley
2016-05-24  6:32 ` [PATCH v2 07/11] enic: use Tx completion messages instead of descriptors John Daley
2016-05-24  6:32 ` [PATCH v2 08/11] enic: refactor Tx mbuf recycling John Daley
2016-05-24  6:32 ` [PATCH v2 09/11] enic: optimize the Tx function John Daley
2016-05-30 10:05   ` Azarewicz, PiotrX T
2016-05-24  6:32 ` [PATCH v2 10/11] enic: remove unused files and functions and variables John Daley
2016-05-24  6:32 ` [PATCH v2 11/11] enic: add an enic assert macro John Daley
2016-06-03  0:22 ` [PATCH v3 00/13] enic counter fixes and Tx optimization John Daley
2016-06-03  0:22   ` [PATCH v3 01/13] enic: fix Rx drop counters John Daley
2016-06-03  0:22   ` [PATCH v3 02/13] enic: drop bad packets and remove unused Rx error flag John Daley
2016-06-03  0:22   ` [PATCH v3 03/13] enic: count truncated packets John Daley
2016-06-03  0:22   ` [PATCH v3 04/13] enic: put Tx and Rx functions into same file John Daley
2016-06-03  0:22   ` [PATCH v3 05/13] enic: remove some unused functions in Tx path John Daley
2016-06-03  0:22   ` [PATCH v3 06/13] enic: streamline mbuf handling " John Daley
2016-06-03  0:22   ` [PATCH v3 07/13] enic: use Tx completion messages instead of descriptors John Daley
2016-06-10 21:18     ` Bruce Richardson
2016-06-10 22:28       ` John Daley (johndale)
2016-06-03  0:22   ` [PATCH v3 08/13] enic: refactor Tx mbuf recycling John Daley
2016-06-03  0:22   ` [PATCH v3 09/13] enic: optimize the Tx function John Daley
2016-06-03  0:22   ` [PATCH v3 10/13] enic: remove unused files and functions and variables John Daley
2016-06-03  0:22   ` John Daley [this message]
2016-06-03  0:22   ` [PATCH v3 12/13] enic: expand local Tx mbuf flags variable to 64-bits John Daley
2016-06-03  8:05     ` Azarewicz, PiotrX T
2016-06-03  0:22   ` [PATCH v3 13/13] enic: fix Tx IP and UDP/TCP checksum offload John Daley
2016-06-10 22:38   ` [PATCH v3 00/13] enic counter fixes and Tx optimization Bruce Richardson

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