[Linuxarm] Re: [RFCv2 PATCH net-next 101/167] net: ionic: use netdev feature helpers

On 2021/9/22 22:57, Jian Shen wrote:

Use netdev_feature_xxx helpers to replace the logical operation for netdev features.

Signed-off-by: Jian Shen shenjian15@huawei.com

.../net/ethernet/pensando/ionic/ionic_lif.c | 123 +++++++++++------- .../net/ethernet/pensando/ionic/ionic_txrx.c | 9 +- 2 files changed, 79 insertions(+), 53 deletions(-)

[...]

if (lif->nxqs > 1)

• features |= NETIF_F_RXHASH;
  

• netdev_feature_set_bits(NETIF_F_RXHASH_BIT, &features);
  

netdev_feature_set_bits -> netdev_feature_set_bit

err = ionic_set_nic_features(lif, features); if (err) return err;

/* tell the netdev what we actually can support */

• netdev->features |= NETIF_F_HIGHDMA;

• netdev_feature_set_bit(NETIF_F_HIGHDMA_BIT, &netdev->features);

  if (lif->hw_features & IONIC_ETH_HW_VLAN_TX_TAG)

• netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
  

• netdev_feature_set_bit(NETIF_F_HW_VLAN_CTAG_TX_BIT,
  

• 		       &netdev->hw_features);
  

  if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_STRIP)

• netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
  

• netdev_feature_set_bit(NETIF_F_HW_VLAN_CTAG_RX_BIT,
  

• 		       &netdev->hw_features);
  

  if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_FILTER)

• netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
  

• netdev_feature_set_bit(NETIF_F_HW_VLAN_CTAG_FILTER_BIT,
  

• 		       &netdev->hw_features);
  

  if (lif->hw_features & IONIC_ETH_HW_RX_HASH)

• netdev->hw_features |= NETIF_F_RXHASH;
  

• netdev_feature_set_bit(NETIF_F_RXHASH_BIT,
  

• 		       &netdev->hw_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TX_SG)

• netdev->hw_features |= NETIF_F_SG;
  

• netdev_feature_set_bit(NETIF_F_SG_BIT, &netdev->hw_features);
  
  

  if (lif->hw_features & IONIC_ETH_HW_TX_CSUM)

• netdev->hw_enc_features |= NETIF_F_HW_CSUM;
  

• netdev_feature_set_bit(NETIF_F_HW_CSUM_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_RX_CSUM)

• netdev->hw_enc_features |= NETIF_F_RXCSUM;
  

• netdev_feature_set_bit(NETIF_F_RXCSUM_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO)

• netdev->hw_enc_features |= NETIF_F_TSO;
  

• netdev_feature_set_bit(NETIF_F_TSO_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_IPV6)

• netdev->hw_enc_features |= NETIF_F_TSO6;
  

• netdev_feature_set_bit(NETIF_F_TSO6_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_ECN)

• netdev->hw_enc_features |= NETIF_F_TSO_ECN;
  

• netdev_feature_set_bit(NETIF_F_TSO_ECN_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_GRE)

• netdev->hw_enc_features |= NETIF_F_GSO_GRE;
  

• netdev_feature_set_bit(NETIF_F_GSO_GRE_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_GRE_CSUM)

• netdev->hw_enc_features |= NETIF_F_GSO_GRE_CSUM;
  

• netdev_feature_set_bit(NETIF_F_GSO_GRE_CSUM_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP4)

• netdev->hw_enc_features |= NETIF_F_GSO_IPXIP4;
  

• netdev_feature_set_bit(NETIF_F_GSO_IPXIP4_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP6)

• netdev->hw_enc_features |= NETIF_F_GSO_IPXIP6;
  

• netdev_feature_set_bit(NETIF_F_GSO_IPXIP6_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_UDP)

• netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
  

• netdev_feature_set_bit(NETIF_F_GSO_UDP_TUNNEL_BIT,
  

• 		       &netdev->hw_enc_features);
  

  if (lif->hw_features & IONIC_ETH_HW_TSO_UDP_CSUM)

• netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM;
  

• netdev->hw_features |= netdev->hw_enc_features;
• netdev->features |= netdev->hw_features;
• netdev->vlan_features |= netdev->features & ~NETIF_F_VLAN_FEATURES;

• netdev_feature_set_bit(NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,
  

• 		       &netdev->hw_enc_features);
  

• netdev_feature_or(&netdev->hw_features, netdev->hw_features,

• 	  netdev->hw_enc_features);
  

• netdev_feature_or(&netdev->features, netdev->features,

• 	  netdev->hw_features);
  

• netdev_feature_or(&netdev->vlan_features, netdev->vlan_features,

• 	  netdev->features);
  

• netdev_feature_clear_bits(NETIF_F_VLAN_FEATURES,

• 		  &netdev->vlan_features);
  

if netdev->vlan_features already has NETIF_F_VLAN_FEATURES, after

- netdev->vlan_features |= netdev->features & ~NETIF_F_VLAN_FEATURES;

netdev->vlan_features still has NETIF_F_VLAN_FEATURES, but after

+ netdev_feature_or(&netdev->vlan_features, netdev->vlan_features, + netdev->features); + netdev_feature_clear_bits(NETIF_F_VLAN_FEATURES, + &netdev->vlan_features);

netdev->vlan_features will lose NETIF_F_VLAN_FEATURES

netdev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; @@ -2124,7 +2146,7 @@ static int ionic_txrx_init(struct ionic_lif *lif) } }

• if (lif->netdev->features & NETIF_F_RXHASH)

• if (netdev_feature_test_bit(NETIF_F_RXHASH_BIT, lif->netdev->features)) ionic_lif_rss_init(lif);

  ionic_lif_rx_mode(lif);

@@ -3092,7 +3114,8 @@ void ionic_lif_deinit(struct ionic_lif *lif) cancel_work_sync(&lif->deferred.work); cancel_work_sync(&lif->tx_timeout_work); ionic_rx_filters_deinit(lif);

• if (lif->netdev->features & NETIF_F_RXHASH)
  

• if (netdev_feature_test_bit(NETIF_F_RXHASH_BIT,
  

• 			    lif->netdev->features))
  ionic_lif_rss_deinit(lif);
  

  }

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c index 37c39581b659..8c0cf924a194 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c @@ -252,7 +252,8 @@ static void ionic_rx_clean(struct ionic_queue *q,

skb_record_rx_queue(skb, q->index);

• if (likely(netdev->features & NETIF_F_RXHASH)) {

• if (likely(netdev_feature_test_bit(NETIF_F_RXHASH_BIT,

• 			   netdev->features))) {
  

  switch (comp->pkt_type_color & IONIC_RXQ_COMP_PKT_TYPE_MASK) { case IONIC_PKT_TYPE_IPV4: case IONIC_PKT_TYPE_IPV6:

@@ -269,7 +270,8 @@ static void ionic_rx_clean(struct ionic_queue *q, } }

• if (likely(netdev->features & NETIF_F_RXCSUM) &&

• if (likely(netdev_feature_test_bit(NETIF_F_RXCSUM_BIT,

• 			   netdev->features)) &&
  

  (comp->csum_flags & IONIC_RXQ_COMP_CSUM_F_CALC)) { skb->ip_summed = CHECKSUM_COMPLETE; skb->csum = (__force __wsum)le16_to_cpu(comp->csum);

@@ -283,7 +285,8 @@ static void ionic_rx_clean(struct ionic_queue *q, (comp->csum_flags & IONIC_RXQ_COMP_CSUM_F_IP_BAD))) stats->csum_error++;

• if (likely(netdev->features & NETIF_F_HW_VLAN_CTAG_RX) &&

• if (likely(netdev_feature_test_bit(NETIF_F_HW_VLAN_CTAG_RX_BIT,

• 			   netdev->features)) &&
  

  (comp->csum_flags & IONIC_RXQ_COMP_CSUM_F_VLAN)) { __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), le16_to_cpu(comp->vlan_tci));