Do you see problems with the stock driver and your hardware, or is it just an issue with your modified driver? If it's our stock driver, we can file a bug. Otherwise, I think you have to debug your custom changes.
Todd Fujinaka Software Application Engineer Networking Division (ND) Intel Corporation todd.fujin...@intel.com (503) 712-4565 -----Original Message----- From: ？_？ [mailto:chenxiong...@qq.com] Sent: Saturday, June 20, 2015 6:37 PM To: e1000-devel Subject: [E1000-devel] 回复：Error: igb patch to drop small packet with RSS 8 hi, some body? i want to know if this is a bug. can you tell me ? Thanks ------------------ 原始邮件 ------------------ 发件人: "？_？";<chenxiong...@qq.com>; 发送时间: 2015年6月17日(星期三) 中午12:37 收件人: "e1000-devel"<e1000-devel@lists.sourceforge.net>; 主题: Error: igb patch to drop small packet with RSS 8 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 ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ 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
