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From: Nipun Gupta <nipun.gupta@nxp.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, ferruh.yigit@intel.com,
	hemant.agrawal@nxp.com, sachin.saxena@nxp.com, stable@dpdk.org,
	Radu Bulie <radu-andrei.bulie@nxp.com>,
	Nipun Gupta <nipun.gupta@nxp.com>
Subject: [dpdk-dev] [PATCH 7/9 v4] mempool/dpaa2: report error on endless loop in mbuf release
Date: Tue,  5 Nov 2019 19:53:19 +0530	[thread overview]
Message-ID: <20191105142321.7478-8-nipun.gupta@nxp.com> (raw)
In-Reply-To: <20191105142321.7478-1-nipun.gupta@nxp.com>

From: Radu Bulie <radu-andrei.bulie@nxp.com>

When BMAN is not able to accept more buffers, it could be that
there are no FBPR's (internal mem provided to bman) left.
Report error in such condition.

Fixes: 5dc43d22b5ad ("mempool/dpaa2: add hardware offloaded mempool")
Cc: stable@dpdk.org

Signed-off-by: Radu Bulie <radu-andrei.bulie@nxp.com>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
---
 drivers/mempool/dpaa2/dpaa2_hw_mempool.c | 27 +++++++++++++++++-------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/drivers/mempool/dpaa2/dpaa2_hw_mempool.c b/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
index f26c30b00..cc4f837b6 100644
--- a/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
+++ b/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
@@ -192,7 +192,7 @@ rte_dpaa2_mbuf_release(struct rte_mempool *pool __rte_unused,
 	struct qbman_release_desc releasedesc;
 	struct qbman_swp *swp;
 	int ret;
-	int i, n;
+	int i, n, retry_count;
 	uint64_t bufs[DPAA2_MBUF_MAX_ACQ_REL];
 
 	if (unlikely(!DPAA2_PER_LCORE_DPIO)) {
@@ -225,9 +225,15 @@ rte_dpaa2_mbuf_release(struct rte_mempool *pool __rte_unused,
 	}
 
 	/* feed them to bman */
-	do {
-		ret = qbman_swp_release(swp, &releasedesc, bufs, n);
-	} while (ret == -EBUSY);
+	retry_count = 0;
+	while ((ret = qbman_swp_release(swp, &releasedesc, bufs, n)) ==
+			-EBUSY) {
+		retry_count++;
+		if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) {
+			DPAA2_MEMPOOL_ERR("bman release retry exceeded, low fbpr?");
+			return;
+		}
+	}
 
 aligned:
 	/* if there are more buffers to free */
@@ -243,10 +249,15 @@ rte_dpaa2_mbuf_release(struct rte_mempool *pool __rte_unused,
 #endif
 		}
 
-		do {
-			ret = qbman_swp_release(swp, &releasedesc, bufs,
-						DPAA2_MBUF_MAX_ACQ_REL);
-		} while (ret == -EBUSY);
+		retry_count = 0;
+		while ((ret = qbman_swp_release(swp, &releasedesc, bufs,
+					DPAA2_MBUF_MAX_ACQ_REL)) == -EBUSY) {
+			retry_count++;
+			if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) {
+				DPAA2_MEMPOOL_ERR("bman release retry exceeded, low fbpr?");
+				return;
+			}
+		}
 		n += DPAA2_MBUF_MAX_ACQ_REL;
 	}
 }
-- 
2.17.1


  parent reply	other threads:[~2019-11-05 14:41 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-11  5:46 [dpdk-dev] [PATCH 0/9] DPAA and FSLMC driver fixes and cleanup Nipun Gupta
2019-10-11  5:46 ` [dpdk-dev] [PATCH 1/9] net/dpaa: fix supported RSS types Nipun Gupta
2019-10-11  5:46 ` [dpdk-dev] [PATCH 2/9] net/dpaa: fix LS1043 alignment check Nipun Gupta
2019-10-11  5:46 ` [dpdk-dev] [PATCH 3/9] common/dpaax: fallback to check separate memory node for VM Nipun Gupta
2019-10-11  5:46 ` [dpdk-dev] [PATCH 4/9] mempool/dpaa2: panic on endless loop in mbuf release Nipun Gupta
2019-10-11  5:46 ` [dpdk-dev] [PATCH 5/9] net/dpaa2: add retry and timeout in packet enqueue API Nipun Gupta
2019-10-11  5:46 ` [dpdk-dev] [PATCH 6/9] raw/dpaa2_qdma: " Nipun Gupta
2019-10-15  6:55   ` Hemant Agrawal
2019-10-11  5:46 ` [dpdk-dev] [PATCH 7/9] raw/dpaa2_cmdif: " Nipun Gupta
2019-10-15  6:55   ` Hemant Agrawal
2019-10-11  5:46 ` [dpdk-dev] [PATCH 8/9] bus/dpaa: moving qbman global init to bus Nipun Gupta
2019-10-11  5:46 ` [dpdk-dev] [PATCH 9/9] bus/fslmc: sanitize device name parsing for clarity Nipun Gupta
2019-10-15  6:56 ` [dpdk-dev] [PATCH 0/9] DPAA and FSLMC driver fixes and cleanup Hemant Agrawal
2019-10-17 12:43 ` [dpdk-dev] [PATCH 0/9 v2] " Nipun Gupta
2019-10-17 12:43   ` [dpdk-dev] [PATCH 1/9 v2] net/dpaa: fix supported RSS types Nipun Gupta
2019-10-17 12:43   ` [dpdk-dev] [PATCH 2/9 v2] net/dpaa: fix LS1043 alignment check Nipun Gupta
2019-10-17 12:43   ` [dpdk-dev] [PATCH 3/9 v2] common/dpaax: fallback to check separate memory node for VM Nipun Gupta
2019-10-17 12:43   ` [dpdk-dev] [PATCH 4/9 v2] net/dpaa2: add retry and timeout in packet enqueue API Nipun Gupta
2019-10-17 12:43   ` [dpdk-dev] [PATCH 5/9 v2] raw/dpaa2_qdma: " Nipun Gupta
2019-10-17 12:44   ` [dpdk-dev] [PATCH 6/9 v2] raw/dpaa2_cmdif: " Nipun Gupta
2019-10-17 12:44   ` [dpdk-dev] [PATCH 7/9 v2] mempool/dpaa2: panic on endless loop in mbuf release Nipun Gupta
2019-10-23 23:08     ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2019-10-30 12:17       ` Nipun Gupta
2019-10-17 12:44   ` [dpdk-dev] [PATCH 8/9 v2] bus/dpaa: moving qbman global init to bus Nipun Gupta
2019-10-18  9:06     ` Akhil Goyal
2019-10-17 12:44   ` [dpdk-dev] [PATCH 9/9 v2] bus/fslmc: sanitize device name parsing for clarity Nipun Gupta
2019-10-30 12:09 ` [dpdk-dev] [PATCH 0/9 v3] DPAA and FSLMC driver fixes and cleanup Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 1/9 v3] net/dpaa: fix supported RSS types Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 2/9 v3] net/dpaa: fix LS1043 alignment check Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 3/9 v3] common/dpaax: fallback to check separate memory node for VM Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 4/9 v3] net/dpaa2: add retry and timeout in packet enqueue API Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 5/9 v3] raw/dpaa2_qdma: " Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 6/9 v3] raw/dpaa2_cmdif: " Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 7/9 v3] mempool/dpaa2: report error on endless loop in mbuf release Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 8/9 v3] bus/dpaa: moving qbman global init to bus Nipun Gupta
2019-10-30 12:09   ` [dpdk-dev] [PATCH 9/9 v3] bus/fslmc: sanitize device name parsing for clarity Nipun Gupta
2019-11-05 14:23 ` [dpdk-dev] [PATCH 0/9 v4] DPAA and FSLMC driver fixes and cleanup Nipun Gupta
2019-11-05 14:23   ` [dpdk-dev] [PATCH 1/9 v4] net/dpaa: fix supported RSS types Nipun Gupta
2019-11-05 14:23   ` [dpdk-dev] [PATCH 2/9 v4] net/dpaa: fix LS1043 alignment check Nipun Gupta
2019-11-05 14:23   ` [dpdk-dev] [PATCH 3/9 v4] common/dpaax: fallback to check separate memory node for VM Nipun Gupta
2019-11-05 14:23   ` [dpdk-dev] [PATCH 4/9 v4] net/dpaa2: add retry and timeout in packet enqueue API Nipun Gupta
2019-11-05 14:23   ` [dpdk-dev] [PATCH 5/9 v4] raw/dpaa2_qdma: " Nipun Gupta
2019-11-05 14:23   ` [dpdk-dev] [PATCH 6/9 v4] raw/dpaa2_cmdif: " Nipun Gupta
2019-11-05 14:23   ` Nipun Gupta [this message]
2019-11-05 14:23   ` [dpdk-dev] [PATCH 8/9 v4] bus/dpaa: moving qbman global init to bus Nipun Gupta
2019-11-05 14:23   ` [dpdk-dev] [PATCH 9/9 v4] bus/fslmc: sanitize device name parsing for clarity Nipun Gupta
2019-11-06  0:19   ` [dpdk-dev] [PATCH 0/9 v4] DPAA and FSLMC driver fixes and cleanup Thomas Monjalon

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