diff options
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/lio_vf_main.c')
-rw-r--r-- | drivers/net/ethernet/cavium/liquidio/lio_vf_main.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c index a6efd75c30bb..013a8613d4de 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c @@ -1376,134 +1376,6 @@ static void if_cfg_callback(struct octeon_device *oct, wake_up_interruptible(&ctx->wc); } -/** Routine to push packets arriving on Octeon interface upto network layer. - * @param oct_id - octeon device id. - * @param skbuff - skbuff struct to be passed to network layer. - * @param len - size of total data received. - * @param rh - Control header associated with the packet - * @param param - additional control data with the packet - * @param arg - farg registered in droq_ops - */ -static void -liquidio_push_packet(u32 octeon_id __attribute__((unused)), - void *skbuff, - u32 len, - union octeon_rh *rh, - void *param, - void *arg) -{ - struct napi_struct *napi = param; - struct octeon_droq *droq = - container_of(param, struct octeon_droq, napi); - struct net_device *netdev = (struct net_device *)arg; - struct sk_buff *skb = (struct sk_buff *)skbuff; - u16 vtag = 0; - u32 r_dh_off; - - if (netdev) { - struct lio *lio = GET_LIO(netdev); - int packet_was_received; - - /* Do not proceed if the interface is not in RUNNING state. */ - if (!ifstate_check(lio, LIO_IFSTATE_RUNNING)) { - recv_buffer_free(skb); - droq->stats.rx_dropped++; - return; - } - - skb->dev = netdev; - - skb_record_rx_queue(skb, droq->q_no); - if (likely(len > MIN_SKB_SIZE)) { - struct octeon_skb_page_info *pg_info; - unsigned char *va; - - pg_info = ((struct octeon_skb_page_info *)(skb->cb)); - if (pg_info->page) { - /* For Paged allocation use the frags */ - va = page_address(pg_info->page) + - pg_info->page_offset; - memcpy(skb->data, va, MIN_SKB_SIZE); - skb_put(skb, MIN_SKB_SIZE); - skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, - pg_info->page, - pg_info->page_offset + - MIN_SKB_SIZE, - len - MIN_SKB_SIZE, - LIO_RXBUFFER_SZ); - } - } else { - struct octeon_skb_page_info *pg_info = - ((struct octeon_skb_page_info *)(skb->cb)); - skb_copy_to_linear_data(skb, - page_address(pg_info->page) + - pg_info->page_offset, len); - skb_put(skb, len); - put_page(pg_info->page); - } - - r_dh_off = (rh->r_dh.len - 1) * BYTES_PER_DHLEN_UNIT; - - if (rh->r_dh.has_hwtstamp) - r_dh_off -= BYTES_PER_DHLEN_UNIT; - - if (rh->r_dh.has_hash) { - __be32 *hash_be = (__be32 *)(skb->data + r_dh_off); - u32 hash = be32_to_cpu(*hash_be); - - skb_set_hash(skb, hash, PKT_HASH_TYPE_L4); - r_dh_off -= BYTES_PER_DHLEN_UNIT; - } - - skb_pull(skb, rh->r_dh.len * BYTES_PER_DHLEN_UNIT); - skb->protocol = eth_type_trans(skb, skb->dev); - - if ((netdev->features & NETIF_F_RXCSUM) && - (((rh->r_dh.encap_on) && - (rh->r_dh.csum_verified & CNNIC_TUN_CSUM_VERIFIED)) || - (!(rh->r_dh.encap_on) && - (rh->r_dh.csum_verified & CNNIC_CSUM_VERIFIED)))) - /* checksum has already been verified */ - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb->ip_summed = CHECKSUM_NONE; - - /* Setting Encapsulation field on basis of status received - * from the firmware - */ - if (rh->r_dh.encap_on) { - skb->encapsulation = 1; - skb->csum_level = 1; - droq->stats.rx_vxlan++; - } - - /* inbound VLAN tag */ - if ((netdev->features & NETIF_F_HW_VLAN_CTAG_RX) && - rh->r_dh.vlan) { - u16 priority = rh->r_dh.priority; - u16 vid = rh->r_dh.vlan; - - vtag = (priority << VLAN_PRIO_SHIFT) | vid; - __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vtag); - } - - packet_was_received = (napi_gro_receive(napi, skb) != GRO_DROP); - - if (packet_was_received) { - droq->stats.rx_bytes_received += len; - droq->stats.rx_pkts_received++; - } else { - droq->stats.rx_dropped++; - netif_info(lio, rx_err, lio->netdev, - "droq:%d error rx_dropped:%llu\n", - droq->q_no, droq->stats.rx_dropped); - } - - } else { - recv_buffer_free(skb); - } -} - /** * \brief callback when receive interrupt occurs and we are in NAPI mode * @param arg pointer to octeon output queue |