![Neil Horman](/assets/img/avatar_default.png)
After the last patch, We are left in a state in which only drivers calling ether_setup have IFF_TX_SKB_SHARING set (we assume that drivers touching real hardware call ether_setup for their net_devices and don't hold any state in their skbs. There are a handful of drivers that violate this assumption of course, and need to be fixed up. This patch identifies those drivers, and marks them as not being able to support the safe transmission of skbs by clearning the IFF_TX_SKB_SHARING flag in priv_flags Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Karsten Keil <isdn@linux-pingi.de> CC: "David S. Miller" <davem@davemloft.net> CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Patrick McHardy <kaber@trash.net> CC: Krzysztof Halasa <khc@pm.waw.pl> CC: "John W. Linville" <linville@tuxdriver.com> CC: Greg Kroah-Hartman <gregkh@suse.de> CC: Marcel Holtmann <marcel@holtmann.org> CC: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
707 lines
19 KiB
C
707 lines
19 KiB
C
/* -*- linux-c -*-
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* INET 802.1Q VLAN
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* Ethernet-type device handling.
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*
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* Authors: Ben Greear <greearb@candelatech.com>
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* Please send support related email to: netdev@vger.kernel.org
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* VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
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*
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* Fixes: Mar 22 2001: Martin Bokaemper <mbokaemper@unispherenetworks.com>
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* - reset skb->pkt_type on incoming packets when MAC was changed
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* - see that changed MAC is saddr for outgoing packets
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* Oct 20, 2001: Ard van Breeman:
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* - Fix MC-list, finally.
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* - Flush MC-list on VLAN destroy.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <net/arp.h>
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#include "vlan.h"
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#include "vlanproc.h"
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#include <linux/if_vlan.h>
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/*
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* Rebuild the Ethernet MAC header. This is called after an ARP
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* (or in future other address resolution) has completed on this
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* sk_buff. We now let ARP fill in the other fields.
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*
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* This routine CANNOT use cached dst->neigh!
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* Really, it is used only when dst->neigh is wrong.
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*
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* TODO: This needs a checkup, I'm ignorant here. --BLG
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*/
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static int vlan_dev_rebuild_header(struct sk_buff *skb)
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{
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struct net_device *dev = skb->dev;
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struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
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switch (veth->h_vlan_encapsulated_proto) {
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#ifdef CONFIG_INET
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case htons(ETH_P_IP):
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/* TODO: Confirm this will work with VLAN headers... */
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return arp_find(veth->h_dest, skb);
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#endif
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default:
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pr_debug("%s: unable to resolve type %X addresses\n",
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dev->name, ntohs(veth->h_vlan_encapsulated_proto));
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memcpy(veth->h_source, dev->dev_addr, ETH_ALEN);
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break;
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}
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return 0;
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}
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static inline u16
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vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
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{
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struct vlan_priority_tci_mapping *mp;
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mp = vlan_dev_info(dev)->egress_priority_map[(skb->priority & 0xF)];
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while (mp) {
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if (mp->priority == skb->priority) {
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return mp->vlan_qos; /* This should already be shifted
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* to mask correctly with the
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* VLAN's TCI */
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}
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mp = mp->next;
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}
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return 0;
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}
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/*
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* Create the VLAN header for an arbitrary protocol layer
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*
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* saddr=NULL means use device source address
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* daddr=NULL means leave destination address (eg unresolved arp)
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*
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* This is called when the SKB is moving down the stack towards the
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* physical devices.
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*/
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static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
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unsigned short type,
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const void *daddr, const void *saddr,
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unsigned int len)
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{
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struct vlan_hdr *vhdr;
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unsigned int vhdrlen = 0;
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u16 vlan_tci = 0;
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int rc;
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if (!(vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR)) {
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vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
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vlan_tci = vlan_dev_info(dev)->vlan_id;
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vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
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vhdr->h_vlan_TCI = htons(vlan_tci);
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/*
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* Set the protocol type. For a packet of type ETH_P_802_3/2 we
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* put the length in here instead.
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*/
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if (type != ETH_P_802_3 && type != ETH_P_802_2)
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vhdr->h_vlan_encapsulated_proto = htons(type);
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else
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vhdr->h_vlan_encapsulated_proto = htons(len);
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skb->protocol = htons(ETH_P_8021Q);
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type = ETH_P_8021Q;
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vhdrlen = VLAN_HLEN;
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}
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/* Before delegating work to the lower layer, enter our MAC-address */
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if (saddr == NULL)
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saddr = dev->dev_addr;
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/* Now make the underlying real hard header */
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dev = vlan_dev_info(dev)->real_dev;
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rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen);
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if (rc > 0)
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rc += vhdrlen;
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return rc;
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}
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static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
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struct net_device *dev)
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{
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struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
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unsigned int len;
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int ret;
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/* Handle non-VLAN frames if they are sent to us, for example by DHCP.
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*
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* NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING
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* OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs...
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*/
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if (veth->h_vlan_proto != htons(ETH_P_8021Q) ||
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vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR) {
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u16 vlan_tci;
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vlan_tci = vlan_dev_info(dev)->vlan_id;
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vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
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skb = __vlan_hwaccel_put_tag(skb, vlan_tci);
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}
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skb_set_dev(skb, vlan_dev_info(dev)->real_dev);
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len = skb->len;
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ret = dev_queue_xmit(skb);
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if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
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struct vlan_pcpu_stats *stats;
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stats = this_cpu_ptr(vlan_dev_info(dev)->vlan_pcpu_stats);
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u64_stats_update_begin(&stats->syncp);
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stats->tx_packets++;
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stats->tx_bytes += len;
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u64_stats_update_end(&stats->syncp);
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} else {
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this_cpu_inc(vlan_dev_info(dev)->vlan_pcpu_stats->tx_dropped);
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}
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return ret;
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}
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static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
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{
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/* TODO: gotta make sure the underlying layer can handle it,
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* maybe an IFF_VLAN_CAPABLE flag for devices?
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*/
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if (vlan_dev_info(dev)->real_dev->mtu < new_mtu)
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return -ERANGE;
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dev->mtu = new_mtu;
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return 0;
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}
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void vlan_dev_set_ingress_priority(const struct net_device *dev,
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u32 skb_prio, u16 vlan_prio)
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{
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struct vlan_dev_info *vlan = vlan_dev_info(dev);
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if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio)
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vlan->nr_ingress_mappings--;
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else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio)
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vlan->nr_ingress_mappings++;
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vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio;
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}
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int vlan_dev_set_egress_priority(const struct net_device *dev,
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u32 skb_prio, u16 vlan_prio)
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{
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struct vlan_dev_info *vlan = vlan_dev_info(dev);
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struct vlan_priority_tci_mapping *mp = NULL;
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struct vlan_priority_tci_mapping *np;
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u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK;
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/* See if a priority mapping exists.. */
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mp = vlan->egress_priority_map[skb_prio & 0xF];
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while (mp) {
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if (mp->priority == skb_prio) {
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if (mp->vlan_qos && !vlan_qos)
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vlan->nr_egress_mappings--;
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else if (!mp->vlan_qos && vlan_qos)
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vlan->nr_egress_mappings++;
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mp->vlan_qos = vlan_qos;
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return 0;
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}
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mp = mp->next;
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}
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/* Create a new mapping then. */
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mp = vlan->egress_priority_map[skb_prio & 0xF];
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np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL);
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if (!np)
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return -ENOBUFS;
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np->next = mp;
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np->priority = skb_prio;
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np->vlan_qos = vlan_qos;
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vlan->egress_priority_map[skb_prio & 0xF] = np;
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if (vlan_qos)
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vlan->nr_egress_mappings++;
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return 0;
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}
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/* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
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int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
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{
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struct vlan_dev_info *vlan = vlan_dev_info(dev);
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u32 old_flags = vlan->flags;
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if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
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VLAN_FLAG_LOOSE_BINDING))
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return -EINVAL;
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vlan->flags = (old_flags & ~mask) | (flags & mask);
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if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
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if (vlan->flags & VLAN_FLAG_GVRP)
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vlan_gvrp_request_join(dev);
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else
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vlan_gvrp_request_leave(dev);
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}
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return 0;
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}
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void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)
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{
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strncpy(result, vlan_dev_info(dev)->real_dev->name, 23);
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}
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static int vlan_dev_open(struct net_device *dev)
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{
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struct vlan_dev_info *vlan = vlan_dev_info(dev);
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struct net_device *real_dev = vlan->real_dev;
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int err;
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if (!(real_dev->flags & IFF_UP) &&
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!(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
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return -ENETDOWN;
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if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
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err = dev_uc_add(real_dev, dev->dev_addr);
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if (err < 0)
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goto out;
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}
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if (dev->flags & IFF_ALLMULTI) {
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err = dev_set_allmulti(real_dev, 1);
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if (err < 0)
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goto del_unicast;
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}
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if (dev->flags & IFF_PROMISC) {
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err = dev_set_promiscuity(real_dev, 1);
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if (err < 0)
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goto clear_allmulti;
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}
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memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN);
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if (vlan->flags & VLAN_FLAG_GVRP)
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vlan_gvrp_request_join(dev);
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if (netif_carrier_ok(real_dev))
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netif_carrier_on(dev);
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return 0;
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clear_allmulti:
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if (dev->flags & IFF_ALLMULTI)
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dev_set_allmulti(real_dev, -1);
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del_unicast:
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if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
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dev_uc_del(real_dev, dev->dev_addr);
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out:
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netif_carrier_off(dev);
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return err;
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}
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static int vlan_dev_stop(struct net_device *dev)
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{
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struct vlan_dev_info *vlan = vlan_dev_info(dev);
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struct net_device *real_dev = vlan->real_dev;
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dev_mc_unsync(real_dev, dev);
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dev_uc_unsync(real_dev, dev);
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if (dev->flags & IFF_ALLMULTI)
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dev_set_allmulti(real_dev, -1);
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if (dev->flags & IFF_PROMISC)
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dev_set_promiscuity(real_dev, -1);
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if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
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dev_uc_del(real_dev, dev->dev_addr);
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netif_carrier_off(dev);
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return 0;
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}
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static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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struct sockaddr *addr = p;
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int err;
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if (!is_valid_ether_addr(addr->sa_data))
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return -EADDRNOTAVAIL;
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if (!(dev->flags & IFF_UP))
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goto out;
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if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
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err = dev_uc_add(real_dev, addr->sa_data);
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if (err < 0)
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return err;
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}
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if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
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dev_uc_del(real_dev, dev->dev_addr);
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out:
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memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
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return 0;
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}
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static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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const struct net_device_ops *ops = real_dev->netdev_ops;
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struct ifreq ifrr;
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int err = -EOPNOTSUPP;
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strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ);
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ifrr.ifr_ifru = ifr->ifr_ifru;
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switch (cmd) {
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case SIOCGMIIPHY:
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case SIOCGMIIREG:
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case SIOCSMIIREG:
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if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
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err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
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break;
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}
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if (!err)
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ifr->ifr_ifru = ifrr.ifr_ifru;
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return err;
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}
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static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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const struct net_device_ops *ops = real_dev->netdev_ops;
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int err = 0;
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if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
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err = ops->ndo_neigh_setup(real_dev, pa);
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return err;
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}
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#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
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static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
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struct scatterlist *sgl, unsigned int sgc)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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const struct net_device_ops *ops = real_dev->netdev_ops;
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int rc = 0;
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if (ops->ndo_fcoe_ddp_setup)
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rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
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return rc;
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}
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static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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const struct net_device_ops *ops = real_dev->netdev_ops;
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int len = 0;
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if (ops->ndo_fcoe_ddp_done)
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len = ops->ndo_fcoe_ddp_done(real_dev, xid);
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return len;
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}
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static int vlan_dev_fcoe_enable(struct net_device *dev)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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const struct net_device_ops *ops = real_dev->netdev_ops;
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int rc = -EINVAL;
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if (ops->ndo_fcoe_enable)
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rc = ops->ndo_fcoe_enable(real_dev);
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return rc;
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}
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static int vlan_dev_fcoe_disable(struct net_device *dev)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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const struct net_device_ops *ops = real_dev->netdev_ops;
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int rc = -EINVAL;
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if (ops->ndo_fcoe_disable)
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rc = ops->ndo_fcoe_disable(real_dev);
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return rc;
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}
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static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
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{
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struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
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const struct net_device_ops *ops = real_dev->netdev_ops;
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int rc = -EINVAL;
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if (ops->ndo_fcoe_get_wwn)
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rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
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return rc;
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}
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static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid,
|
|
struct scatterlist *sgl, unsigned int sgc)
|
|
{
|
|
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
|
|
const struct net_device_ops *ops = real_dev->netdev_ops;
|
|
int rc = 0;
|
|
|
|
if (ops->ndo_fcoe_ddp_target)
|
|
rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc);
|
|
|
|
return rc;
|
|
}
|
|
#endif
|
|
|
|
static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
|
|
{
|
|
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
|
|
|
|
if (change & IFF_ALLMULTI)
|
|
dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1);
|
|
if (change & IFF_PROMISC)
|
|
dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
|
|
}
|
|
|
|
static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
|
|
{
|
|
dev_mc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
|
|
dev_uc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
|
|
}
|
|
|
|
/*
|
|
* vlan network devices have devices nesting below it, and are a special
|
|
* "super class" of normal network devices; split their locks off into a
|
|
* separate class since they always nest.
|
|
*/
|
|
static struct lock_class_key vlan_netdev_xmit_lock_key;
|
|
static struct lock_class_key vlan_netdev_addr_lock_key;
|
|
|
|
static void vlan_dev_set_lockdep_one(struct net_device *dev,
|
|
struct netdev_queue *txq,
|
|
void *_subclass)
|
|
{
|
|
lockdep_set_class_and_subclass(&txq->_xmit_lock,
|
|
&vlan_netdev_xmit_lock_key,
|
|
*(int *)_subclass);
|
|
}
|
|
|
|
static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
|
|
{
|
|
lockdep_set_class_and_subclass(&dev->addr_list_lock,
|
|
&vlan_netdev_addr_lock_key,
|
|
subclass);
|
|
netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
|
|
}
|
|
|
|
static const struct header_ops vlan_header_ops = {
|
|
.create = vlan_dev_hard_header,
|
|
.rebuild = vlan_dev_rebuild_header,
|
|
.parse = eth_header_parse,
|
|
};
|
|
|
|
static const struct net_device_ops vlan_netdev_ops;
|
|
|
|
static int vlan_dev_init(struct net_device *dev)
|
|
{
|
|
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
|
|
int subclass = 0;
|
|
|
|
netif_carrier_off(dev);
|
|
|
|
/* IFF_BROADCAST|IFF_MULTICAST; ??? */
|
|
dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
|
|
IFF_MASTER | IFF_SLAVE);
|
|
dev->iflink = real_dev->ifindex;
|
|
dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
|
|
(1<<__LINK_STATE_DORMANT))) |
|
|
(1<<__LINK_STATE_PRESENT);
|
|
|
|
dev->hw_features = NETIF_F_ALL_CSUM | NETIF_F_SG |
|
|
NETIF_F_FRAGLIST | NETIF_F_ALL_TSO |
|
|
NETIF_F_HIGHDMA | NETIF_F_SCTP_CSUM |
|
|
NETIF_F_ALL_FCOE;
|
|
|
|
dev->features |= real_dev->vlan_features | NETIF_F_LLTX;
|
|
dev->gso_max_size = real_dev->gso_max_size;
|
|
|
|
/* ipv6 shared card related stuff */
|
|
dev->dev_id = real_dev->dev_id;
|
|
|
|
if (is_zero_ether_addr(dev->dev_addr))
|
|
memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
|
|
if (is_zero_ether_addr(dev->broadcast))
|
|
memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
|
|
|
|
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
|
|
dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
|
|
#endif
|
|
|
|
dev->needed_headroom = real_dev->needed_headroom;
|
|
if (real_dev->features & NETIF_F_HW_VLAN_TX) {
|
|
dev->header_ops = real_dev->header_ops;
|
|
dev->hard_header_len = real_dev->hard_header_len;
|
|
} else {
|
|
dev->header_ops = &vlan_header_ops;
|
|
dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
|
|
}
|
|
|
|
dev->netdev_ops = &vlan_netdev_ops;
|
|
|
|
if (is_vlan_dev(real_dev))
|
|
subclass = 1;
|
|
|
|
vlan_dev_set_lockdep_class(dev, subclass);
|
|
|
|
vlan_dev_info(dev)->vlan_pcpu_stats = alloc_percpu(struct vlan_pcpu_stats);
|
|
if (!vlan_dev_info(dev)->vlan_pcpu_stats)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vlan_dev_uninit(struct net_device *dev)
|
|
{
|
|
struct vlan_priority_tci_mapping *pm;
|
|
struct vlan_dev_info *vlan = vlan_dev_info(dev);
|
|
int i;
|
|
|
|
free_percpu(vlan->vlan_pcpu_stats);
|
|
vlan->vlan_pcpu_stats = NULL;
|
|
for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
|
|
while ((pm = vlan->egress_priority_map[i]) != NULL) {
|
|
vlan->egress_priority_map[i] = pm->next;
|
|
kfree(pm);
|
|
}
|
|
}
|
|
}
|
|
|
|
static u32 vlan_dev_fix_features(struct net_device *dev, u32 features)
|
|
{
|
|
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
|
|
u32 old_features = features;
|
|
|
|
features &= real_dev->features;
|
|
features &= real_dev->vlan_features;
|
|
|
|
features |= old_features & NETIF_F_SOFT_FEATURES;
|
|
|
|
if (dev_ethtool_get_rx_csum(real_dev))
|
|
features |= NETIF_F_RXCSUM;
|
|
features |= NETIF_F_LLTX;
|
|
|
|
return features;
|
|
}
|
|
|
|
static int vlan_ethtool_get_settings(struct net_device *dev,
|
|
struct ethtool_cmd *cmd)
|
|
{
|
|
const struct vlan_dev_info *vlan = vlan_dev_info(dev);
|
|
return dev_ethtool_get_settings(vlan->real_dev, cmd);
|
|
}
|
|
|
|
static void vlan_ethtool_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
strcpy(info->driver, vlan_fullname);
|
|
strcpy(info->version, vlan_version);
|
|
strcpy(info->fw_version, "N/A");
|
|
}
|
|
|
|
static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
|
|
{
|
|
|
|
if (vlan_dev_info(dev)->vlan_pcpu_stats) {
|
|
struct vlan_pcpu_stats *p;
|
|
u32 rx_errors = 0, tx_dropped = 0;
|
|
int i;
|
|
|
|
for_each_possible_cpu(i) {
|
|
u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes;
|
|
unsigned int start;
|
|
|
|
p = per_cpu_ptr(vlan_dev_info(dev)->vlan_pcpu_stats, i);
|
|
do {
|
|
start = u64_stats_fetch_begin_bh(&p->syncp);
|
|
rxpackets = p->rx_packets;
|
|
rxbytes = p->rx_bytes;
|
|
rxmulticast = p->rx_multicast;
|
|
txpackets = p->tx_packets;
|
|
txbytes = p->tx_bytes;
|
|
} while (u64_stats_fetch_retry_bh(&p->syncp, start));
|
|
|
|
stats->rx_packets += rxpackets;
|
|
stats->rx_bytes += rxbytes;
|
|
stats->multicast += rxmulticast;
|
|
stats->tx_packets += txpackets;
|
|
stats->tx_bytes += txbytes;
|
|
/* rx_errors & tx_dropped are u32 */
|
|
rx_errors += p->rx_errors;
|
|
tx_dropped += p->tx_dropped;
|
|
}
|
|
stats->rx_errors = rx_errors;
|
|
stats->tx_dropped = tx_dropped;
|
|
}
|
|
return stats;
|
|
}
|
|
|
|
static const struct ethtool_ops vlan_ethtool_ops = {
|
|
.get_settings = vlan_ethtool_get_settings,
|
|
.get_drvinfo = vlan_ethtool_get_drvinfo,
|
|
.get_link = ethtool_op_get_link,
|
|
};
|
|
|
|
static const struct net_device_ops vlan_netdev_ops = {
|
|
.ndo_change_mtu = vlan_dev_change_mtu,
|
|
.ndo_init = vlan_dev_init,
|
|
.ndo_uninit = vlan_dev_uninit,
|
|
.ndo_open = vlan_dev_open,
|
|
.ndo_stop = vlan_dev_stop,
|
|
.ndo_start_xmit = vlan_dev_hard_start_xmit,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_mac_address = vlan_dev_set_mac_address,
|
|
.ndo_set_rx_mode = vlan_dev_set_rx_mode,
|
|
.ndo_set_multicast_list = vlan_dev_set_rx_mode,
|
|
.ndo_change_rx_flags = vlan_dev_change_rx_flags,
|
|
.ndo_do_ioctl = vlan_dev_ioctl,
|
|
.ndo_neigh_setup = vlan_dev_neigh_setup,
|
|
.ndo_get_stats64 = vlan_dev_get_stats64,
|
|
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
|
|
.ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
|
|
.ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
|
|
.ndo_fcoe_enable = vlan_dev_fcoe_enable,
|
|
.ndo_fcoe_disable = vlan_dev_fcoe_disable,
|
|
.ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn,
|
|
.ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target,
|
|
#endif
|
|
.ndo_fix_features = vlan_dev_fix_features,
|
|
};
|
|
|
|
void vlan_setup(struct net_device *dev)
|
|
{
|
|
ether_setup(dev);
|
|
|
|
dev->priv_flags |= IFF_802_1Q_VLAN;
|
|
dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
|
|
dev->tx_queue_len = 0;
|
|
|
|
dev->netdev_ops = &vlan_netdev_ops;
|
|
dev->destructor = free_netdev;
|
|
dev->ethtool_ops = &vlan_ethtool_ops;
|
|
|
|
memset(dev->broadcast, 0, ETH_ALEN);
|
|
}
|