From: x-fn-spp@sl.ntt-tx.co.jp
To: ferruh.yigit@intel.com, ogawa.yasufumi@lab.ntt.co.jp
Cc: spp@dpdk.org
Subject: [spp] [PATCH 1/4] shared: fix trying to create ring already exist
Date: Fri, 8 Feb 2019 17:47:50 +0900 [thread overview]
Message-ID: <201902080847.x188lrID021610@imss03.silk.ntt-tx.co.jp> (raw)
In-Reply-To: <20190208084753.8049-1-x-fn-spp@sl.ntt-tx.co.jp>
From: Hideyuki Yamashita <yamashita.hideyuki@po.ntt-tx.co.jp>
In add_ring_pmd(), it tries to create a ring port without checking if
already exists. To fix the issue, check requested port is created
before. If so, it calls rte_eth_dev_start() instead.
Signed-off-by: Hideyuki Yamashita <yamashita.hideyuki@po.ntt-tx.co.jp>
Signed-off-by: Naoki Takada <takada.naoki@lab.ntt.co.jp>
---
src/shared/secondary/add_port.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/src/shared/secondary/add_port.c b/src/shared/secondary/add_port.c
index 2841f94..6924583 100644
--- a/src/shared/secondary/add_port.c
+++ b/src/shared/secondary/add_port.c
@@ -103,6 +103,8 @@ add_ring_pmd(int ring_id)
struct rte_ring *ring;
int res;
char rx_queue_name[32]; /* Prefix and number like as 'eth_ring_0' */
+ uint16_t port_id = PORT_RESET;
+ char dev_name[RTE_ETH_NAME_MAX_LEN];
memset(rx_queue_name, '\0', sizeof(rx_queue_name));
sprintf(rx_queue_name, "%s", get_rx_queue_name(ring_id));
@@ -118,12 +120,21 @@ add_ring_pmd(int ring_id)
RTE_LOG(INFO, SHARED, "Looked up ring '%s'\n", rx_queue_name);
/* create ring pmd*/
- res = rte_eth_from_ring(ring);
- if (res < 0) {
- RTE_LOG(ERR, SHARED,
- "Cannot create eth dev with rte_eth_from_ring()\n");
- return -1;
+ snprintf(dev_name, RTE_ETH_NAME_MAX_LEN - 1, "net_ring_%s", ring->name);
+ /* check whether a port already exists. */
+ res = rte_eth_dev_get_port_by_name(dev_name, &port_id);
+ if (port_id == PORT_RESET) {
+ res = rte_eth_from_ring(ring);
+ if (res < 0) {
+ RTE_LOG(ERR, SHARED, "Cannot create eth dev with "
+ "rte_eth_from_ring()\n");
+ return -1;
+ }
+ } else {
+ res = port_id;
+ rte_eth_dev_start(res);
}
+
RTE_LOG(INFO, SHARED, "Created ring PMD: %d\n", res);
return res;
--
2.17.1
next parent reply other threads:[~2019-02-08 8:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190208084753.8049-1-x-fn-spp@sl.ntt-tx.co.jp>
2019-02-08 8:47 ` x-fn-spp [this message]
2019-02-08 8:47 ` [spp] [PATCH 2/4] spp_nfv: fix incorrect deleting for ring port x-fn-spp
2019-02-08 8:47 ` [spp] [PATCH 3/4] spp_vf: fix trying to create ring already exist x-fn-spp
2019-02-08 8:47 ` [spp] [PATCH 4/4] spp_pcap: " x-fn-spp
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