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authorSteven Luong <sluong@cisco.com>2023-05-14 21:47:21 -0700
committersteven luong <sluong@cisco.com>2023-05-15 04:58:40 +0000
commite77af765e2c4eb2e1eb858c48441b1f236ed41f9 (patch)
tree206d432b94f18c4b9818778fdb1e7c4aead44b66
parent4a0e08eb6068ada1d2867c32f0fb08c1af389e06 (diff)
dpdk: Be wary of the return value from rte_eth_dev_socket_id
Prior to dpdk-22.11, VPP can count on rte_eth_dev_socket_id to return numa node 0 if the device didn't set it. Ever since below patch is committed in dpdk https://patchwork.dpdk.org/project/dpdk/patch/20220929120512.480-1-olivier.matz@6wind.com/#152498 the aforementioned assumption is no longer true. If the device didn't set the numa node, VPP gets -1 from the aforementioned API call. This causes VPP to crash. This fix is to set the numa node to 0 if the API returns -1, or SOCKET_ID_ANY Type: fix Change-Id: I2fde2870e5a3eb98473fe8d119fef594bfba9a8d Signed-off-by: Steven Luong <sluong@cisco.com>
-rw-r--r--src/plugins/dpdk/device/init.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index 3eb1da55919..ad38694dc31 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -268,6 +268,7 @@ dpdk_lib_init (dpdk_main_t * dm)
dpdk_device_config_t *devconf = 0;
vnet_eth_interface_registration_t eir = {};
dpdk_driver_t *dr;
+ i8 numa_node;
if (!rte_eth_dev_is_valid_port (port_id))
continue;
@@ -448,7 +449,12 @@ dpdk_lib_init (dpdk_main_t * dm)
eir.cb.set_max_frame_size = dpdk_set_max_frame_size;
xd->hw_if_index = vnet_eth_register_interface (vnm, &eir);
hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
- hi->numa_node = xd->cpu_socket = (i8) rte_eth_dev_socket_id (port_id);
+ numa_node = (i8) rte_eth_dev_socket_id (port_id);
+ if (numa_node == SOCKET_ID_ANY)
+ /* numa_node is not set, default to 0 */
+ hi->numa_node = xd->cpu_socket = 0;
+ else
+ hi->numa_node = xd->cpu_socket = numa_node;
sw = vnet_get_hw_sw_interface (vnm, xd->hw_if_index);
xd->sw_if_index = sw->sw_if_index;
dpdk_log_debug ("[%u] interface %s created", port_id, hi->name);