[dpdk-dev] [PATCH v3 18/23] net/dpaa: prevent multiple mp config on an device

[Hemant Agrawal]

From: Nipun Gupta <nipun.gupta at nxp.com>

The current driver only support single buffer pool on a given
pmd instance. return error, if trying to configure more.

Signed-off-by: Nipun Gupta <nipun.gupta at nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/mempool/dpaa/dpaa_mempool.c | 1 +
 drivers/net/dpaa/dpaa_ethdev.c      | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/drivers/mempool/dpaa/dpaa_mempool.c b/drivers/mempool/dpaa/dpaa_mempool.c
index e6b06f0575..1ee7ffb647 100644
--- a/drivers/mempool/dpaa/dpaa_mempool.c
+++ b/drivers/mempool/dpaa/dpaa_mempool.c
@@ -134,6 +134,7 @@ dpaa_mbuf_free_pool(struct rte_mempool *mp)
 		DPAA_MEMPOOL_INFO("BMAN pool freed for bpid =%d",
 				  bp_info->bpid);
 		rte_free(mp->pool_data);
+		bp_info->bp = NULL;
 		mp->pool_data = NULL;
 	}
 }
diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c
index 0996edf9a9..a3a3e7cb24 100644
--- a/drivers/net/dpaa/dpaa_ethdev.c
+++ b/drivers/net/dpaa/dpaa_ethdev.c
@@ -969,6 +969,12 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 		}
 	}
 
+	if (dpaa_intf->bp_info && dpaa_intf->bp_info->bp &&
+	    dpaa_intf->bp_info->mp != mp) {
+		DPAA_PMD_WARN("Multiple pools on same interface not supported");
+		return -EINVAL;
+	}
+
 	/* Max packet can fit in single buffer */
 	if (dev->data->dev_conf.rxmode.max_rx_pkt_len <= buffsz) {
 		;
-- 
2.17.1