[dpdk-dev] [PATCH] eal: call plugin init before device parse

[Santosh Shukla]

Default eal_init code calls
0. eal_plugins_init
1. eal_option_device_parse
2. rte_bus_scan

IOVA commit:cf408c224 missed on calling eal_plugins_init before
eal_option_device_parse, rte_bus_scan and that introduced below
regression for shared mode:

with CONFIG_RTE_BUILD_SHARED_LIB=y:

'net_vhost0,iface=/tmp/vhost-user2' -d ./install/lib/librte_pmd_vhost.so
-- --portmask=1 --disable-hw-vlan -i --rxq=1 --txq=1 --nb-cores=1
--eth-peer=0,52:54:00:11:22:12
EAL: Detected 4 lcore(s)
ERROR: failed to parse device "net_vhost0"
EAL: Unable to parse device 'net_vhost0,iface=/tmp/vhost-user2'
PANIC in main():
Cannot init EAL

Fixes: cf408c224 ("eal: auto detect IOVA mode")

Reported-by: Maxime Coquelin <maxime.coque...@redhat.com>
Signed-off-by: Santosh Shukla <santosh.shu...@caviumnetworks.com>
---
 lib/librte_eal/bsdapp/eal/eal.c   | 10 +++++++---
 lib/librte_eal/linuxapp/eal/eal.c | 10 +++++++---
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index 30d3bd5b5..e981721aa 100644
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -551,6 +551,13 @@ rte_eal_init(int argc, char **argv)
                return -1;
        }
 
+       if (eal_plugins_init() < 0) {
+               rte_eal_init_alert("Cannot init plugins\n");
+               rte_errno = EINVAL;
+               rte_atomic32_clear(&run_once);
+               return -1;
+       }
+
        if (eal_option_device_parse()) {
                rte_errno = ENODEV;
                rte_atomic32_clear(&run_once);
@@ -635,9 +642,6 @@ rte_eal_init(int argc, char **argv)
 
        eal_check_mem_on_local_socket();
 
-       if (eal_plugins_init() < 0)
-               rte_eal_init_alert("Cannot init plugins\n");
-
        eal_thread_init_master(rte_config.master_lcore);
 
        ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
diff --git a/lib/librte_eal/linuxapp/eal/eal.c 
b/lib/librte_eal/linuxapp/eal/eal.c
index ec37c52c0..ad7278989 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -786,6 +786,13 @@ rte_eal_init(int argc, char **argv)
                return -1;
        }
 
+       if (eal_plugins_init() < 0) {
+               rte_eal_init_alert("Cannot init plugins\n");
+               rte_errno = EINVAL;
+               rte_atomic32_clear(&run_once);
+               return -1;
+       }
+
        if (eal_option_device_parse()) {
                rte_errno = ENODEV;
                rte_atomic32_clear(&run_once);
@@ -882,9 +889,6 @@ rte_eal_init(int argc, char **argv)
 
        eal_check_mem_on_local_socket();
 
-       if (eal_plugins_init() < 0)
-               rte_eal_init_alert("Cannot init plugins\n");
-
        eal_thread_init_master(rte_config.master_lcore);
 
        ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
-- 
2.13.0