diff mbox series

[bpf-next,v8,11/18] ice: use VLAN proto from ring packet context in skb path

Message ID 20231205210847.28460-12-larysa.zaremba@intel.com (mailing list archive)
State Accepted
Commit b591137c4ec35ed3f8478f5bb69a22ef4834f04a
Delegated to: BPF
Headers show
Series XDP metadata via kfuncs for ice + VLAN hint | expand

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netdev/tree_selection success Clearly marked for bpf-next
netdev/ynl success SINGLE THREAD; Generated files up to date; no warnings/errors; GEN HAS DIFF 1 file changed, 1 insertion(+);
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Commit Message

Larysa Zaremba Dec. 5, 2023, 9:08 p.m. UTC 
VLAN proto, used in ice XDP hints implementation is stored in ring packet
context. Utilize this value in skb VLAN processing too instead of checking
netdev features.

At the same time, use vlan_tci instead of vlan_tag in touched code,
because VLAN tag often refers to VLAN proto and VLAN TCI combined,
while in the code we clearly store only VLAN TCI.

Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 14 +++++---------
 drivers/net/ethernet/intel/ice/ice_txrx_lib.h |  2 +-
 2 files changed, 6 insertions(+), 10 deletions(-)

Comments

Fijalkowski, Maciej Dec. 12, 2023, 1:26 p.m. UTC | #1 
On Tue, Dec 05, 2023 at 10:08:40PM +0100, Larysa Zaremba wrote:
> VLAN proto, used in ice XDP hints implementation is stored in ring packet
> context. Utilize this value in skb VLAN processing too instead of checking
> netdev features.
> 
> At the same time, use vlan_tci instead of vlan_tag in touched code,
> because VLAN tag often refers to VLAN proto and VLAN TCI combined,
> while in the code we clearly store only VLAN TCI.
> 
> Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>

Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>

IMHO series is good to go, however I'd like Magnus to take a look at 07/18
(no pressure:))

> ---
>  drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 14 +++++---------
>  drivers/net/ethernet/intel/ice/ice_txrx_lib.h |  2 +-
>  2 files changed, 6 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
> index 25ffb539b474..839e5da24ad5 100644
> --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
> +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
> @@ -244,21 +244,17 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring,
>   * ice_receive_skb - Send a completed packet up the stack
>   * @rx_ring: Rx ring in play
>   * @skb: packet to send up
> - * @vlan_tag: VLAN tag for packet
> + * @vlan_tci: VLAN TCI for packet
>   *
>   * This function sends the completed packet (via. skb) up the stack using
>   * gro receive functions (with/without VLAN tag)
>   */
>  void
> -ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag)
> +ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tci)
>  {
> -	netdev_features_t features = rx_ring->netdev->features;
> -	bool non_zero_vlan = !!(vlan_tag & VLAN_VID_MASK);
> -
> -	if ((features & NETIF_F_HW_VLAN_CTAG_RX) && non_zero_vlan)
> -		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
> -	else if ((features & NETIF_F_HW_VLAN_STAG_RX) && non_zero_vlan)
> -		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021AD), vlan_tag);
> +	if ((vlan_tci & VLAN_VID_MASK) && rx_ring->vlan_proto)
> +		__vlan_hwaccel_put_tag(skb, rx_ring->vlan_proto,
> +				       vlan_tci);
>  
>  	napi_gro_receive(&rx_ring->q_vector->napi, skb);
>  }
> diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
> index 3893af1c11f3..762047508619 100644
> --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
> +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
> @@ -150,7 +150,7 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring,
>  		       union ice_32b_rx_flex_desc *rx_desc,
>  		       struct sk_buff *skb);
>  void
> -ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag);
> +ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tci);
>  
>  static inline void
>  ice_xdp_meta_set_desc(struct xdp_buff *xdp,
> -- 
> 2.41.0
>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
index 25ffb539b474..839e5da24ad5 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
@@ -244,21 +244,17 @@  ice_process_skb_fields(struct ice_rx_ring *rx_ring,
  * ice_receive_skb - Send a completed packet up the stack
  * @rx_ring: Rx ring in play
  * @skb: packet to send up
- * @vlan_tag: VLAN tag for packet
+ * @vlan_tci: VLAN TCI for packet
  *
  * This function sends the completed packet (via. skb) up the stack using
  * gro receive functions (with/without VLAN tag)
  */
 void
-ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag)
+ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tci)
 {
-	netdev_features_t features = rx_ring->netdev->features;
-	bool non_zero_vlan = !!(vlan_tag & VLAN_VID_MASK);
-
-	if ((features & NETIF_F_HW_VLAN_CTAG_RX) && non_zero_vlan)
-		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
-	else if ((features & NETIF_F_HW_VLAN_STAG_RX) && non_zero_vlan)
-		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021AD), vlan_tag);
+	if ((vlan_tci & VLAN_VID_MASK) && rx_ring->vlan_proto)
+		__vlan_hwaccel_put_tag(skb, rx_ring->vlan_proto,
+				       vlan_tci);
 
 	napi_gro_receive(&rx_ring->q_vector->napi, skb);
 }
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
index 3893af1c11f3..762047508619 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
@@ -150,7 +150,7 @@  ice_process_skb_fields(struct ice_rx_ring *rx_ring,
 		       union ice_32b_rx_flex_desc *rx_desc,
 		       struct sk_buff *skb);
 void
-ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag);
+ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tci);
 
 static inline void
 ice_xdp_meta_set_desc(struct xdp_buff *xdp,