[dpdk-dev] [PATCH 1/4] net/i40e: change version number to support Linux VF
Chen Jing D(Mark)
jing.d.chen at intel.com
Tue Jan 3 01:59:16 CET 2017
i40e PF host only support to work with DPDK VF driver, Linux
VF driver is not supported. This change will enhance in version
Current version info returned won't be able to be recognized
by Linux VF driver, change to values that both DPDK VF and Linux
driver can recognize.
The expense is original DPDK host specific feature like
CFG_VLAN_PVID and CONFIG_VSI_QUEUES_EXT will not available.
DPDK VF also can't identify host driver by version number returned.
It always assume talking with Linux PF.
Signed-off-by: Chen Jing D(Mark) <jing.d.chen at intel.com>
drivers/net/i40e/i40e_pf.c | 16 ++++++++++++++--
1 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c
index 97b8ecc..229f71a 100644
@@ -278,8 +278,20 @@
struct i40e_virtchnl_version_info info;
- info.major = I40E_DPDK_VERSION_MAJOR;
- info.minor = I40E_DPDK_VERSION_MINOR;
+ /* Respond like a Linux PF host in order to support both DPDK VF and
+ * Linux VF driver. The expense is original DPDK host specific feature
+ * like CFG_VLAN_PVID and CONFIG_VSI_QUEUES_EXT will not available.
+ * DPDK VF also can't identify host driver by version number returned.
+ * It always assume talking with Linux PF.
+ * TODO:
+ * Discuss with Linux driver maintainer if possible to carry more info
+ * in this function to identify it's Linux or DPDK host.
+ info.major = I40E_VIRTCHNL_VERSION_MAJOR;
+ info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
I40E_SUCCESS, (uint8_t *)&info, sizeof(info));
More information about the dev