[dpdk-stable] [PATCH] net/cxgbe: fix control queue mbuf pool naming convention

[Rahul Lakkireddy]

When multiple Chelsio adapters are present, the current naming
convention of using underlying physical port number of the adapter
creates conflicts when allocating control queue mbuf pool for
multiple adapters and hence results in allocation failure. Fix by
using port_id from rte_eth_dev_data, instead of physical port number.

Fixes: 3a3aaabc7c77 ("net/cxgbe: add control queue to communicate filter requests")
Cc: stable at dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy at chelsio.com>
---
 drivers/net/cxgbe/cxgbe_main.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c
index ec080e5d3..0368db509 100644
--- a/drivers/net/cxgbe/cxgbe_main.c
+++ b/drivers/net/cxgbe/cxgbe_main.c
@@ -122,6 +122,7 @@ int setup_sge_ctrl_txq(struct adapter *adapter)
 	int err = 0, i = 0;
 
 	for_each_port(adapter, i) {
+		struct port_info *pi = adap2pinfo(adapter, i);
 		char name[RTE_ETH_NAME_MAX_LEN];
 		struct sge_ctrl_txq *q = &s->ctrlq[i];
 
@@ -135,16 +136,19 @@ int setup_sge_ctrl_txq(struct adapter *adapter)
 				err);
 			goto out;
 		}
-		snprintf(name, sizeof(name), "cxgbe_ctrl_pool_%d", i);
+		snprintf(name, sizeof(name), "%s_ctrl_pool_%d",
+			 pi->eth_dev->device->driver->name,
+			 pi->eth_dev->data->port_id);
 		q->mb_pool = rte_pktmbuf_pool_create(name, s->ctrlq[i].q.size,
 						     RTE_CACHE_LINE_SIZE,
 						     RTE_MBUF_PRIV_ALIGN,
 						     RTE_MBUF_DEFAULT_BUF_SIZE,
 						     SOCKET_ID_ANY);
 		if (!q->mb_pool) {
-			dev_err(adapter, "Can't create ctrl pool for port: %d",
-				i);
-			err = -ENOMEM;
+			err = -rte_errno;
+			dev_err(adapter,
+				"Can't create ctrl pool for port %d. Err: %d\n",
+				pi->eth_dev->data->port_id, err);
 			goto out;
 		}
 	}
-- 
2.18.0