hi
i have changed igb-5.2.9.4 #1 to #2 for getting available packet in mirror net
interface, eg eth1
#1
static void igb_receive_skb(struct igb_q_vector *q_vector,
struct sk_buff *skb)
{
struct vlan_group **vlgrp = netdev_priv(skb->dev);
if (IGB_CB(skb)->vid) {
if (*vlgrp) {
vlan_gro_receive(&q_vector->napi, *vlgrp,
IGB_CB(skb)->vid, skb);
} else {
dev_kfree_skb_any(skb);
}
} else {
napi_gro_receive(&q_vector->napi, skb);
}
}
#2 my patch
static void igb_receive_skb(struct igb_q_vector *q_vector,
struct sk_buff *skb)
{
struct vlan_group **vlgrp = netdev_priv(skb->dev);
if (IGB_CB(skb)->vid) {
if (*vlgrp) {
vlan_gro_receive(&q_vector->napi, *vlgrp,
IGB_CB(skb)->vid, skb);
} else {
dev_kfree_skb_any(skb);
}
} else {
u32 uDev = *(u32*)skb->dev->name;
if(uDev == *(u32*)"eth1") { // eth1 is mirror interface
struct iphdr *iph = NULL;
if(skb->protocol == htons(ETH_P_8021Q)) {
iph = (struct iphdr *)(skb->data + 4);
}
else if(skb->protocol == htons(ETH_P_IP)) {
iph = (struct iphdr *)skb->data;
}
if(iph != NULL && /*TCP*/6 == iph->protocol &&
htons(iph->tot_len) >= 80) {
napi_gro_receive(&q_vector->napi, skb);
} else {
dev_kfree_skb_any(skb);
}
} else {
napi_gro_receive(&q_vector->napi, skb);
}
}
}
i have 2 interfaces:
eth0 : with IP connected with gateway
eth1 : mirror interface for data analysis
That's patch works ok after reboot, but the default RSS is 1. so i want to
change RSS
# cat /etc/modprobe.d/igb.conf
options igb RSS=8,8
After change RSS configure,i reboot the server.
Then i can not connect the server in remote pc, and i found this system log in
server:
Jun 16 21:47:04 shuju kernel: igb 0000:05:00.0: eth0: igb: eth0 NIC Link is Up
1000 Mbps Full Duplex, Flow Control: None
Jun 16 21:47:04 shuju kernel: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Jun 16 21:47:04 shuju kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready
Jun 16 21:47:04 shuju kernel: igb 0000:05:00.1: eth1: igb: eth1 NIC Link is Up
1000 Mbps Full Duplex, Flow Control: None
Jun 16 21:47:04 shuju kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
Jun 16 21:47:04 shuju kernel: igb 0000:05:00.0: Detected Tx Unit Hang
Jun 16 21:47:04 shuju kernel: Tx Queue <4>
Jun 16 21:47:04 shuju kernel: TDH <1>
Jun 16 21:47:04 shuju kernel: TDT <1>
Jun 16 21:47:04 shuju kernel: next_to_use <3>
Jun 16 21:47:04 shuju kernel: next_to_clean <0>
Jun 16 21:47:04 shuju kernel: buffer_info[next_to_clean]
Jun 16 21:47:04 shuju kernel: time_stamp <ffff0724>
Jun 16 21:47:04 shuju kernel: next_to_watch <ffff88043a5f9000>
Jun 16 21:47:04 shuju kernel: jiffies <ffff1058>
Jun 16 21:47:04 shuju kernel: desc.status <168000>
... a lot of this error
Jun 17 09:03:13 shuju kernel: igb 0000:05:00.0: Detected Tx Unit Hang
Jun 17 09:03:13 shuju kernel: Tx Queue <7>
Jun 17 09:03:13 shuju kernel: TDH <12>
Jun 17 09:03:13 shuju kernel: TDT <13>
Jun 17 09:03:13 shuju kernel: next_to_use <13>
Jun 17 09:03:13 shuju kernel: next_to_clean <0>
Jun 17 09:03:13 shuju kernel: buffer_info[next_to_clean]
Jun 17 09:03:13 shuju kernel: time_stamp <100103fc3>
Jun 17 09:03:13 shuju kernel: next_to_watch <ffff88023b950000>
Jun 17 09:03:13 shuju kernel: jiffies <100104a7f>
Jun 17 09:03:13 shuju kernel: desc.status <1758000>
Can you help me ?
Thanks------------------------------------------------------------------------------
_______________________________________________
E1000-devel mailing list
E1000-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel® Ethernet, visit
http://communities.intel.com/community/wired
