Hi Mark, I think Huawei (huawei.xie at intel.com) has one patch set to fix this issue.
If your patch is totally different with him: [dpdk-dev] [PATCH v4 0/2] lib/librte_pmd_i40e: set vlan filter fix please ignore my comments :) But you both calculation are different. Thanks, Michael On 12/4/2014 5:51 PM, Chen Jing D(Mark) wrote: > From: "Chen Jing D(Mark)" <jing.d.chen at intel.com> > > i40e uses an bitmap array to store those vlan tags that are set by > application. In function i40e_set_vlan_filter, it stores vlan tag > to wrong place. This change will fix it. > > Signed-off-by: Chen Jing D(Mark) <jing.d.chen at intel.com> > --- > lib/librte_pmd_i40e/i40e_ethdev.c | 11 ++++------- > 1 files changed, 4 insertions(+), 7 deletions(-) > > diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c > b/lib/librte_pmd_i40e/i40e_ethdev.c > index 87e750a..cebc21d 100644 > --- a/lib/librte_pmd_i40e/i40e_ethdev.c > +++ b/lib/librte_pmd_i40e/i40e_ethdev.c > @@ -4163,8 +4163,8 @@ i40e_find_vlan_filter(struct i40e_vsi *vsi, > { > uint32_t vid_idx, vid_bit; > > - vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F); > - vid_bit = (uint32_t) (1 << (vlan_id & 0x1F)); > + vid_idx = (uint32_t)(vlan_id / I40E_UINT32_BIT_SIZE); > + vid_bit = (uint32_t)(1 << (vlan_id % I40E_UINT32_BIT_SIZE)); > > if (vsi->vfta[vid_idx] & vid_bit) > return 1; > @@ -4178,14 +4178,11 @@ i40e_set_vlan_filter(struct i40e_vsi *vsi, > { > uint32_t vid_idx, vid_bit; > > -#define UINT32_BIT_MASK 0x1F > -#define VALID_VLAN_BIT_MASK 0xFFF > /* VFTA is 32-bits size array, each element contains 32 vlan bits, Find > the > * element first, then find the bits it belongs to > */ > - vid_idx = (uint32_t) ((vlan_id & VALID_VLAN_BIT_MASK) >> > - sizeof(uint32_t)); > - vid_bit = (uint32_t) (1 << (vlan_id & UINT32_BIT_MASK)); > + vid_idx = (uint32_t)(vlan_id / I40E_UINT32_BIT_SIZE); > + vid_bit = (uint32_t)(1 << (vlan_id % I40E_UINT32_BIT_SIZE)); > > if (on) > vsi->vfta[vid_idx] |= vid_bit;