Testpmd tries to calculate mbuf size based on "max Rx packet size" and
"max MTU segment number".
When driver set a "nb_mtu_seg_max" to zero, it causes division by zero
segmentation fault in testpmd.
If the PMD set "nb_mtu_seg_max" to zero, testpmd shouldn't try to
calculate the mbuf size.
Fixes: 33f9630fc23d ("app/testpmd: create mbuf based on max supported segments")
Signed-off-by: Ferruh Yigit <ferruh.yi...@intel.com>
---
Cc: Sunil Kumar Kori <sk...@marvell.com>
Cc: YufengX Mo <yufengx...@intel.com>
---
app/test-pmd/testpmd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 0f2fffec3..4e958bc44 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1174,7 +1174,8 @@ init_config(void)
/* Check for maximum number of segments per MTU. Accordingly
* update the mbuf data size.
*/
- if (port->dev_info.rx_desc_lim.nb_mtu_seg_max != UINT16_MAX) {
+ if (port->dev_info.rx_desc_lim.nb_mtu_seg_max != UINT16_MAX &&
+ port->dev_info.rx_desc_lim.nb_mtu_seg_max != 0)
{
data_size = rx_mode.max_rx_pkt_len /
port->dev_info.rx_desc_lim.nb_mtu_seg_max;
--
2.21.0
