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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>
This commit is contained in:
Amit Kumar Salecha 2010-08-25 04:03:03 +00:00 committed by David S. Miller
parent e9a47700cb
commit 8cf61f890a
3 changed files with 111 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/qlcnic/qlcnic.h
View File

@ -175,7 +175,7 @@
((_desc)->port_ctxid = ((_port) & 0xf) | (((_port) << 4) & 0xf0))
#define qlcnic_set_tx_flags_opcode(_desc, _flags, _opcode) \
((_desc)->flags_opcode = \
((_desc)->flags_opcode |= \
cpu_to_le16(((_flags) & 0x7f) | (((_opcode) & 0x3f) << 7)))
#define qlcnic_set_tx_frags_len(_desc, _frags, _len) \
@ -902,6 +902,7 @@ struct qlcnic_mac_req {
#define QLCNIC_BRIDGE_ENABLED 0X10
#define QLCNIC_DIAG_ENABLED 0x20
#define QLCNIC_ESWITCH_ENABLED 0x40
#define QLCNIC_TAGGING_ENABLED 0x100
#define QLCNIC_MACSPOOF 0x200
#define QLCNIC_IS_MSI_FAMILY(adapter) \
((adapter)->flags & (QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED))
@ -967,6 +968,7 @@ struct qlcnic_adapter {
u16 max_tx_ques;
u16 max_rx_ques;
u16 max_mtu;
u16 pvid;
u32 fw_hal_version;
u32 capabilities;

39
drivers/net/qlcnic/qlcnic_init.c
View File

@ -25,6 +25,7 @@
#include <linux/netdevice.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/if_vlan.h>
#include "qlcnic.h"
struct crb_addr_pair {
@ -1302,6 +1303,27 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
return skb;
}
static int
qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb)
{
u16 vlan_tag;
struct ethhdr *eth_hdr;
if (!__vlan_get_tag(skb, &vlan_tag)) {
if (vlan_tag == adapter->pvid) {
/* strip the tag from the packet and send it up */
eth_hdr = (struct ethhdr *) skb->data;
memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
skb_pull(skb, VLAN_HLEN);
return 0;
}
}
if (adapter->flags & QLCNIC_TAGGING_ENABLED)
return 0;
return -EIO;
}
static struct qlcnic_rx_buffer *
qlcnic_process_rcv(struct qlcnic_adapter *adapter,
struct qlcnic_host_sds_ring *sds_ring,
@ -1342,6 +1364,15 @@ qlcnic_process_rcv(struct qlcnic_adapter *adapter,
skb_pull(skb, pkt_offset);
skb->truesize = skb->len + sizeof(struct sk_buff);
if (unlikely(adapter->pvid)) {
if (qlcnic_check_rx_tagging(adapter, skb)) {
adapter->stats.rxdropped++;
dev_kfree_skb_any(skb);
return buffer;
}
}
skb->protocol = eth_type_trans(skb, netdev);
napi_gro_receive(&sds_ring->napi, skb);
@ -1406,6 +1437,14 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
skb_pull(skb, l2_hdr_offset);
if (unlikely(adapter->pvid)) {
if (qlcnic_check_rx_tagging(adapter, skb)) {
adapter->stats.rxdropped++;
dev_kfree_skb_any(skb);
return buffer;
}
}
skb->protocol = eth_type_trans(skb, netdev);
iph = (struct iphdr *)skb->data;

89
drivers/net/qlcnic/qlcnic_main.c
View File

@ -758,6 +758,21 @@ qlcnic_check_options(struct qlcnic_adapter *adapter)
adapter->max_rds_rings = MAX_RDS_RINGS;
}
static void
qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
struct qlcnic_esw_func_cfg *esw_cfg)
{
if (esw_cfg->discard_tagged)
adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
else
adapter->flags |= QLCNIC_TAGGING_ENABLED;
if (esw_cfg->vlan_id)
adapter->pvid = esw_cfg->vlan_id;
else
adapter->pvid = 0;
}
static void
qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
struct qlcnic_esw_func_cfg *esw_cfg)
@ -781,6 +796,7 @@ qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
esw_cfg.pci_func = adapter->ahw.pci_func;
if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
return -EIO;
qlcnic_set_vlan_config(adapter, &esw_cfg);
qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
return 0;
@ -1728,26 +1744,13 @@ qlcnic_tso_check(struct net_device *netdev,
{
u8 opcode = TX_ETHER_PKT;
__be16 protocol = skb->protocol;
u16 flags = 0, vid = 0;
int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
u16 flags = 0;
int copied, offset, copy_len, hdr_len = 0, tso = 0;
struct cmd_desc_type0 *hwdesc;
struct vlan_ethhdr *vh;
struct qlcnic_adapter *adapter = netdev_priv(netdev);
u32 producer = tx_ring->producer;
if (protocol == cpu_to_be16(ETH_P_8021Q)) {
vh = (struct vlan_ethhdr *)skb->data;
protocol = vh->h_vlan_encapsulated_proto;
flags = FLAGS_VLAN_TAGGED;
} else if (vlan_tx_tag_present(skb)) {
flags = FLAGS_VLAN_OOB;
vid = vlan_tx_tag_get(skb);
qlcnic_set_tx_vlan_tci(first_desc, vid);
vlan_oob = 1;
}
int vlan_oob = first_desc->flags_opcode & cpu_to_le16(FLAGS_VLAN_OOB);
if (*(skb->data) & BIT_0) {
flags |= BIT_0;
@ -1818,7 +1821,7 @@ qlcnic_tso_check(struct net_device *netdev,
vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
skb_copy_from_linear_data(skb, vh, 12);
vh->h_vlan_proto = htons(ETH_P_8021Q);
vh->h_vlan_TCI = htons(vid);
vh->h_vlan_TCI = htons(first_desc->vlan_TCI);
skb_copy_from_linear_data_offset(skb, 12,
(char *)vh + 16, copy_len - 16);
@ -1898,11 +1901,47 @@ qlcnic_map_tx_skb(struct pci_dev *pdev,
return -ENOMEM;
}
static int
qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
struct sk_buff *skb,
struct cmd_desc_type0 *first_desc)
{
u8 opcode = 0;
u16 flags = 0;
__be16 protocol = skb->protocol;
struct vlan_ethhdr *vh;
if (protocol == cpu_to_be16(ETH_P_8021Q)) {
vh = (struct vlan_ethhdr *)skb->data;
protocol = vh->h_vlan_encapsulated_proto;
flags = FLAGS_VLAN_TAGGED;
qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
} else if (vlan_tx_tag_present(skb)) {
flags = FLAGS_VLAN_OOB;
qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
}
if (unlikely(adapter->pvid)) {
if (first_desc->vlan_TCI &&
!(adapter->flags & QLCNIC_TAGGING_ENABLED))
return -EIO;
if (first_desc->vlan_TCI &&
(adapter->flags & QLCNIC_TAGGING_ENABLED))
goto set_flags;
flags = FLAGS_VLAN_OOB;
qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
}
set_flags:
qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
return 0;
}
static inline void
qlcnic_clear_cmddesc(u64 *desc)
{
desc[0] = 0ULL;
desc[2] = 0ULL;
desc[7] = 0ULL;
}
netdev_tx_t
@ -1952,6 +1991,12 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
pdev = adapter->pdev;
first_desc = hwdesc = &tx_ring->desc_head[producer];
qlcnic_clear_cmddesc((u64 *)hwdesc);
if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
goto drop_packet;
if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
adapter->stats.tx_dma_map_error++;
goto drop_packet;
@ -1960,9 +2005,6 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
pbuf->skb = skb;
pbuf->frag_count = frag_count;
first_desc = hwdesc = &tx_ring->desc_head[producer];
qlcnic_clear_cmddesc((u64 *)hwdesc);
qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
qlcnic_set_tx_port(first_desc, adapter->portnum);
@ -3349,6 +3391,13 @@ qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
case QLCNIC_PORT_DEFAULTS:
qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
break;
case QLCNIC_ADD_VLAN:
qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
break;
case QLCNIC_DEL_VLAN:
esw_cfg[i].vlan_id = 0;
qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
break;
}
}