> -----Original Message-----
> From: Xie, Huawei
> Sent: Sunday, September 28, 2014 1:49 PM
> To: dev at dpdk.org
> Cc: Xie, Huawei; Chen, Jing D; Zhang, Helin
> Subject: [PATCH] lib/librte_pmd_i40e: i40e vlan filter set fix
>
> the right shift bits should be 5 rather than 4.
> vid_idx = (uint32_t) ((vlan_id >> 5 ) & 0x7F)
>
> Signed-off-by: Huawei Xie <huawei.xie at intel.com>
> CC: Jing Chen <jing.d.chen at intel.com>
> CC: Helin Zhang <helin.zhang at intel.com>
>
> ---
> lib/librte_pmd_i40e/i40e_ethdev.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c
> b/lib/librte_pmd_i40e/i40e_ethdev.c
> index 9009bd4..9c9d831 100644
> --- a/lib/librte_pmd_i40e/i40e_ethdev.c
> +++ b/lib/librte_pmd_i40e/i40e_ethdev.c
> @@ -3786,14 +3786,11 @@ 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 >> 5 ) & 0x7F);
> + vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
>
> if (on)
> vsi->vfta[vid_idx] |= vid_bit;
> --
> 1.8.1.4
Please try to use macro to replace numbers.
