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qlcnic: support port vlan id
On NIC Partition capable adapter, Administrator can configure to tag packet with particular vlan id. Packet will be tagged and strip with that vlan id. Also if 'Tagging' flag is disable, other packet will be drop. Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -175,7 +175,7 @@
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((_desc)->port_ctxid = ((_port) & 0xf) | (((_port) << 4) & 0xf0))
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#define qlcnic_set_tx_flags_opcode(_desc, _flags, _opcode) \
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((_desc)->flags_opcode = \
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((_desc)->flags_opcode |= \
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cpu_to_le16(((_flags) & 0x7f) | (((_opcode) & 0x3f) << 7)))
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#define qlcnic_set_tx_frags_len(_desc, _frags, _len) \
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@ -902,6 +902,7 @@ struct qlcnic_mac_req {
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#define QLCNIC_BRIDGE_ENABLED 0X10
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#define QLCNIC_DIAG_ENABLED 0x20
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#define QLCNIC_ESWITCH_ENABLED 0x40
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#define QLCNIC_TAGGING_ENABLED 0x100
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#define QLCNIC_MACSPOOF 0x200
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#define QLCNIC_IS_MSI_FAMILY(adapter) \
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((adapter)->flags & (QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED))
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@ -967,6 +968,7 @@ struct qlcnic_adapter {
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u16 max_tx_ques;
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u16 max_rx_ques;
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u16 max_mtu;
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u16 pvid;
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u32 fw_hal_version;
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u32 capabilities;
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@ -25,6 +25,7 @@
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#include <linux/netdevice.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/if_vlan.h>
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#include "qlcnic.h"
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struct crb_addr_pair {
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@ -1302,6 +1303,27 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
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return skb;
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}
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static int
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qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb)
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{
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u16 vlan_tag;
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struct ethhdr *eth_hdr;
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if (!__vlan_get_tag(skb, &vlan_tag)) {
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if (vlan_tag == adapter->pvid) {
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/* strip the tag from the packet and send it up */
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eth_hdr = (struct ethhdr *) skb->data;
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memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
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skb_pull(skb, VLAN_HLEN);
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return 0;
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}
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}
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if (adapter->flags & QLCNIC_TAGGING_ENABLED)
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return 0;
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return -EIO;
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}
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static struct qlcnic_rx_buffer *
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qlcnic_process_rcv(struct qlcnic_adapter *adapter,
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struct qlcnic_host_sds_ring *sds_ring,
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@ -1342,6 +1364,15 @@ qlcnic_process_rcv(struct qlcnic_adapter *adapter,
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skb_pull(skb, pkt_offset);
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skb->truesize = skb->len + sizeof(struct sk_buff);
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if (unlikely(adapter->pvid)) {
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if (qlcnic_check_rx_tagging(adapter, skb)) {
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adapter->stats.rxdropped++;
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dev_kfree_skb_any(skb);
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return buffer;
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}
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}
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skb->protocol = eth_type_trans(skb, netdev);
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napi_gro_receive(&sds_ring->napi, skb);
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@ -1406,6 +1437,14 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
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skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
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skb_pull(skb, l2_hdr_offset);
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if (unlikely(adapter->pvid)) {
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if (qlcnic_check_rx_tagging(adapter, skb)) {
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adapter->stats.rxdropped++;
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dev_kfree_skb_any(skb);
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return buffer;
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}
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}
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skb->protocol = eth_type_trans(skb, netdev);
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iph = (struct iphdr *)skb->data;
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@ -758,6 +758,21 @@ qlcnic_check_options(struct qlcnic_adapter *adapter)
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adapter->max_rds_rings = MAX_RDS_RINGS;
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}
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static void
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qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
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struct qlcnic_esw_func_cfg *esw_cfg)
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{
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if (esw_cfg->discard_tagged)
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adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
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else
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adapter->flags |= QLCNIC_TAGGING_ENABLED;
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if (esw_cfg->vlan_id)
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adapter->pvid = esw_cfg->vlan_id;
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else
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adapter->pvid = 0;
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}
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static void
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qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
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struct qlcnic_esw_func_cfg *esw_cfg)
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@ -781,6 +796,7 @@ qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
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esw_cfg.pci_func = adapter->ahw.pci_func;
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if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
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return -EIO;
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qlcnic_set_vlan_config(adapter, &esw_cfg);
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qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
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return 0;
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@ -1728,26 +1744,13 @@ qlcnic_tso_check(struct net_device *netdev,
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{
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u8 opcode = TX_ETHER_PKT;
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__be16 protocol = skb->protocol;
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u16 flags = 0, vid = 0;
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int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
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u16 flags = 0;
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int copied, offset, copy_len, hdr_len = 0, tso = 0;
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struct cmd_desc_type0 *hwdesc;
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struct vlan_ethhdr *vh;
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struct qlcnic_adapter *adapter = netdev_priv(netdev);
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u32 producer = tx_ring->producer;
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if (protocol == cpu_to_be16(ETH_P_8021Q)) {
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vh = (struct vlan_ethhdr *)skb->data;
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protocol = vh->h_vlan_encapsulated_proto;
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flags = FLAGS_VLAN_TAGGED;
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} else if (vlan_tx_tag_present(skb)) {
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flags = FLAGS_VLAN_OOB;
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vid = vlan_tx_tag_get(skb);
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qlcnic_set_tx_vlan_tci(first_desc, vid);
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vlan_oob = 1;
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}
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int vlan_oob = first_desc->flags_opcode & cpu_to_le16(FLAGS_VLAN_OOB);
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if (*(skb->data) & BIT_0) {
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flags |= BIT_0;
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@ -1818,7 +1821,7 @@ qlcnic_tso_check(struct net_device *netdev,
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vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
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skb_copy_from_linear_data(skb, vh, 12);
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vh->h_vlan_proto = htons(ETH_P_8021Q);
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vh->h_vlan_TCI = htons(vid);
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vh->h_vlan_TCI = htons(first_desc->vlan_TCI);
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skb_copy_from_linear_data_offset(skb, 12,
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(char *)vh + 16, copy_len - 16);
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@ -1898,11 +1901,47 @@ out_err:
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return -ENOMEM;
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}
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static int
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qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
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struct sk_buff *skb,
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struct cmd_desc_type0 *first_desc)
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{
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u8 opcode = 0;
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u16 flags = 0;
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__be16 protocol = skb->protocol;
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struct vlan_ethhdr *vh;
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if (protocol == cpu_to_be16(ETH_P_8021Q)) {
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vh = (struct vlan_ethhdr *)skb->data;
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protocol = vh->h_vlan_encapsulated_proto;
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flags = FLAGS_VLAN_TAGGED;
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qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
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} else if (vlan_tx_tag_present(skb)) {
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flags = FLAGS_VLAN_OOB;
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qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
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}
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if (unlikely(adapter->pvid)) {
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if (first_desc->vlan_TCI &&
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!(adapter->flags & QLCNIC_TAGGING_ENABLED))
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return -EIO;
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if (first_desc->vlan_TCI &&
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(adapter->flags & QLCNIC_TAGGING_ENABLED))
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goto set_flags;
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flags = FLAGS_VLAN_OOB;
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qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
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}
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set_flags:
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qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
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return 0;
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}
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static inline void
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qlcnic_clear_cmddesc(u64 *desc)
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{
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desc[0] = 0ULL;
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desc[2] = 0ULL;
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desc[7] = 0ULL;
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}
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netdev_tx_t
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@ -1952,6 +1991,12 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
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pdev = adapter->pdev;
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first_desc = hwdesc = &tx_ring->desc_head[producer];
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qlcnic_clear_cmddesc((u64 *)hwdesc);
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if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
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goto drop_packet;
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if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
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adapter->stats.tx_dma_map_error++;
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goto drop_packet;
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@ -1960,9 +2005,6 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
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pbuf->skb = skb;
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pbuf->frag_count = frag_count;
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first_desc = hwdesc = &tx_ring->desc_head[producer];
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qlcnic_clear_cmddesc((u64 *)hwdesc);
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qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
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qlcnic_set_tx_port(first_desc, adapter->portnum);
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@ -3349,6 +3391,13 @@ qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
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case QLCNIC_PORT_DEFAULTS:
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qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
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break;
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case QLCNIC_ADD_VLAN:
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qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
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break;
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case QLCNIC_DEL_VLAN:
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esw_cfg[i].vlan_id = 0;
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qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
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break;
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}
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}
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