cxgb4 : Update ipv6 address handling api

This patch improves on previously added support for ipv6 addresses. The code
is consolidated to a single file and adds an api for use by dependent upper
level drivers such as cxgb4i/iw_cxgb4 etc.

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Deepak Singh <deepak.s@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Anish Bhatt 2015-01-14 15:17:34 -08:00 committed by David S. Miller
parent 5055c371bf
commit b5a02f503c
7 changed files with 447 additions and 163 deletions

View File

@ -4,6 +4,6 @@
obj-$(CONFIG_CHELSIO_T4) += cxgb4.o
cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o
cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o clip_tbl.o
cxgb4-$(CONFIG_CHELSIO_T4_DCB) += cxgb4_dcb.o
cxgb4-$(CONFIG_DEBUG_FS) += cxgb4_debugfs.o

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@ -0,0 +1,314 @@
/*
* This file is part of the Chelsio T4 Ethernet driver for Linux.
* Copyright (C) 2003-2014 Chelsio Communications. All rights reserved.
*
* Written by Deepak (deepak.s@chelsio.com)
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the LICENSE file included in this
* release for licensing terms and conditions.
*/
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/jhash.h>
#include <linux/if_vlan.h>
#include <net/addrconf.h>
#include "cxgb4.h"
#include "clip_tbl.h"
static inline unsigned int ipv4_clip_hash(struct clip_tbl *c, const u32 *key)
{
unsigned int clipt_size_half = c->clipt_size / 2;
return jhash_1word(*key, 0) % clipt_size_half;
}
static inline unsigned int ipv6_clip_hash(struct clip_tbl *d, const u32 *key)
{
unsigned int clipt_size_half = d->clipt_size / 2;
u32 xor = key[0] ^ key[1] ^ key[2] ^ key[3];
return clipt_size_half +
(jhash_1word(xor, 0) % clipt_size_half);
}
static unsigned int clip_addr_hash(struct clip_tbl *ctbl, const u32 *addr,
int addr_len)
{
return addr_len == 4 ? ipv4_clip_hash(ctbl, addr) :
ipv6_clip_hash(ctbl, addr);
}
static int clip6_get_mbox(const struct net_device *dev,
const struct in6_addr *lip)
{
struct adapter *adap = netdev2adap(dev);
struct fw_clip_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_write = htonl(FW_CMD_OP_V(FW_CLIP_CMD) |
FW_CMD_REQUEST_F | FW_CMD_WRITE_F);
c.alloc_to_len16 = htonl(FW_CLIP_CMD_ALLOC_F | FW_LEN16(c));
*(__be64 *)&c.ip_hi = *(__be64 *)(lip->s6_addr);
*(__be64 *)&c.ip_lo = *(__be64 *)(lip->s6_addr + 8);
return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false);
}
static int clip6_release_mbox(const struct net_device *dev,
const struct in6_addr *lip)
{
struct adapter *adap = netdev2adap(dev);
struct fw_clip_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_write = htonl(FW_CMD_OP_V(FW_CLIP_CMD) |
FW_CMD_REQUEST_F | FW_CMD_READ_F);
c.alloc_to_len16 = htonl(FW_CLIP_CMD_FREE_F | FW_LEN16(c));
*(__be64 *)&c.ip_hi = *(__be64 *)(lip->s6_addr);
*(__be64 *)&c.ip_lo = *(__be64 *)(lip->s6_addr + 8);
return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false);
}
int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6)
{
struct adapter *adap = netdev2adap(dev);
struct clip_tbl *ctbl = adap->clipt;
struct clip_entry *ce, *cte;
u32 *addr = (u32 *)lip;
int hash;
int addr_len;
int ret = 0;
if (v6)
addr_len = 16;
else
addr_len = 4;
hash = clip_addr_hash(ctbl, addr, addr_len);
read_lock_bh(&ctbl->lock);
list_for_each_entry(cte, &ctbl->hash_list[hash], list) {
if (addr_len == cte->addr_len &&
memcmp(lip, cte->addr, cte->addr_len) == 0) {
ce = cte;
read_unlock_bh(&ctbl->lock);
goto found;
}
}
read_unlock_bh(&ctbl->lock);
write_lock_bh(&ctbl->lock);
if (!list_empty(&ctbl->ce_free_head)) {
ce = list_first_entry(&ctbl->ce_free_head,
struct clip_entry, list);
list_del(&ce->list);
INIT_LIST_HEAD(&ce->list);
spin_lock_init(&ce->lock);
atomic_set(&ce->refcnt, 0);
atomic_dec(&ctbl->nfree);
ce->addr_len = addr_len;
memcpy(ce->addr, lip, addr_len);
list_add_tail(&ce->list, &ctbl->hash_list[hash]);
if (v6) {
ret = clip6_get_mbox(dev, (const struct in6_addr *)lip);
if (ret) {
write_unlock_bh(&ctbl->lock);
return ret;
}
}
} else {
write_unlock_bh(&ctbl->lock);
return -ENOMEM;
}
write_unlock_bh(&ctbl->lock);
found:
atomic_inc(&ce->refcnt);
return 0;
}
EXPORT_SYMBOL(cxgb4_clip_get);
void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6)
{
struct adapter *adap = netdev2adap(dev);
struct clip_tbl *ctbl = adap->clipt;
struct clip_entry *ce, *cte;
u32 *addr = (u32 *)lip;
int hash;
int addr_len;
if (v6)
addr_len = 16;
else
addr_len = 4;
hash = clip_addr_hash(ctbl, addr, addr_len);
read_lock_bh(&ctbl->lock);
list_for_each_entry(cte, &ctbl->hash_list[hash], list) {
if (addr_len == cte->addr_len &&
memcmp(lip, cte->addr, cte->addr_len) == 0) {
ce = cte;
read_unlock_bh(&ctbl->lock);
goto found;
}
}
read_unlock_bh(&ctbl->lock);
return;
found:
write_lock_bh(&ctbl->lock);
spin_lock_bh(&ce->lock);
if (atomic_dec_and_test(&ce->refcnt)) {
list_del(&ce->list);
INIT_LIST_HEAD(&ce->list);
list_add_tail(&ce->list, &ctbl->ce_free_head);
atomic_inc(&ctbl->nfree);
if (v6)
clip6_release_mbox(dev, (const struct in6_addr *)lip);
}
spin_unlock_bh(&ce->lock);
write_unlock_bh(&ctbl->lock);
}
EXPORT_SYMBOL(cxgb4_clip_release);
/* Retrieves IPv6 addresses from a root device (bond, vlan) associated with
* a physical device.
* The physical device reference is needed to send the actul CLIP command.
*/
static int cxgb4_update_dev_clip(struct net_device *root_dev,
struct net_device *dev)
{
struct inet6_dev *idev = NULL;
struct inet6_ifaddr *ifa;
int ret = 0;
idev = __in6_dev_get(root_dev);
if (!idev)
return ret;
read_lock_bh(&idev->lock);
list_for_each_entry(ifa, &idev->addr_list, if_list) {
ret = cxgb4_clip_get(dev, (const u32 *)ifa->addr.s6_addr, 1);
if (ret < 0)
break;
}
read_unlock_bh(&idev->lock);
return ret;
}
int cxgb4_update_root_dev_clip(struct net_device *dev)
{
struct net_device *root_dev = NULL;
int i, ret = 0;
/* First populate the real net device's IPv6 addresses */
ret = cxgb4_update_dev_clip(dev, dev);
if (ret)
return ret;
/* Parse all bond and vlan devices layered on top of the physical dev */
root_dev = netdev_master_upper_dev_get_rcu(dev);
if (root_dev) {
ret = cxgb4_update_dev_clip(root_dev, dev);
if (ret)
return ret;
}
for (i = 0; i < VLAN_N_VID; i++) {
root_dev = __vlan_find_dev_deep_rcu(dev, htons(ETH_P_8021Q), i);
if (!root_dev)
continue;
ret = cxgb4_update_dev_clip(root_dev, dev);
if (ret)
break;
}
return ret;
}
EXPORT_SYMBOL(cxgb4_update_root_dev_clip);
int clip_tbl_show(struct seq_file *seq, void *v)
{
struct adapter *adapter = seq->private;
struct clip_tbl *ctbl = adapter->clipt;
struct clip_entry *ce;
char ip[60];
int i;
read_lock_bh(&ctbl->lock);
seq_puts(seq, "IP Address Users\n");
for (i = 0 ; i < ctbl->clipt_size; ++i) {
list_for_each_entry(ce, &ctbl->hash_list[i], list) {
ip[0] = '\0';
if (ce->addr_len == 16)
sprintf(ip, "%pI6c", ce->addr);
else
sprintf(ip, "%pI4c", ce->addr);
seq_printf(seq, "%-25s %u\n", ip,
atomic_read(&ce->refcnt));
}
}
seq_printf(seq, "Free clip entries : %d\n", atomic_read(&ctbl->nfree));
read_unlock_bh(&ctbl->lock);
return 0;
}
struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
unsigned int clipt_end)
{
struct clip_entry *cl_list;
struct clip_tbl *ctbl;
unsigned int clipt_size;
int i;
if (clipt_start >= clipt_end)
return NULL;
clipt_size = clipt_end - clipt_start + 1;
if (clipt_size < CLIPT_MIN_HASH_BUCKETS)
return NULL;
ctbl = t4_alloc_mem(sizeof(*ctbl) +
clipt_size*sizeof(struct list_head));
if (!ctbl)
return NULL;
ctbl->clipt_start = clipt_start;
ctbl->clipt_size = clipt_size;
INIT_LIST_HEAD(&ctbl->ce_free_head);
atomic_set(&ctbl->nfree, clipt_size);
rwlock_init(&ctbl->lock);
for (i = 0; i < ctbl->clipt_size; ++i)
INIT_LIST_HEAD(&ctbl->hash_list[i]);
cl_list = t4_alloc_mem(clipt_size*sizeof(struct clip_entry));
ctbl->cl_list = (void *)cl_list;
for (i = 0; i < clipt_size; i++) {
INIT_LIST_HEAD(&cl_list[i].list);
list_add_tail(&cl_list[i].list, &ctbl->ce_free_head);
}
return ctbl;
}
void t4_cleanup_clip_tbl(struct adapter *adap)
{
struct clip_tbl *ctbl = adap->clipt;
if (ctbl) {
if (ctbl->cl_list)
t4_free_mem(ctbl->cl_list);
t4_free_mem(ctbl);
}
}
EXPORT_SYMBOL(t4_cleanup_clip_tbl);

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@ -0,0 +1,41 @@
/*
* This file is part of the Chelsio T4 Ethernet driver for Linux.
* Copyright (C) 2003-2014 Chelsio Communications. All rights reserved.
*
* Written by Deepak (deepak.s@chelsio.com)
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the LICENSE file included in this
* release for licensing terms and conditions.
*/
struct clip_entry {
spinlock_t lock; /* Hold while modifying clip reference */
atomic_t refcnt;
struct list_head list;
u32 addr[4];
int addr_len;
};
struct clip_tbl {
unsigned int clipt_start;
unsigned int clipt_size;
rwlock_t lock;
atomic_t nfree;
struct list_head ce_free_head;
void *cl_list;
struct list_head hash_list[0];
};
enum {
CLIPT_MIN_HASH_BUCKETS = 2,
};
struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
unsigned int clipt_end);
int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6);
void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6);
int clip_tbl_show(struct seq_file *seq, void *v);
int cxgb4_update_root_dev_clip(struct net_device *dev);
void t4_cleanup_clip_tbl(struct adapter *adap);

View File

@ -668,6 +668,9 @@ struct adapter {
unsigned int l2t_start;
unsigned int l2t_end;
struct l2t_data *l2t;
unsigned int clipt_start;
unsigned int clipt_end;
struct clip_tbl *clipt;
void *uld_handle[CXGB4_ULD_MAX];
struct list_head list_node;
struct list_head rcu_node;

View File

@ -41,6 +41,7 @@
#include "t4_regs.h"
#include "t4fw_api.h"
#include "cxgb4_debugfs.h"
#include "clip_tbl.h"
#include "l2t.h"
/* generic seq_file support for showing a table of size rows x width. */
@ -563,6 +564,21 @@ static const struct file_operations mps_tcam_debugfs_fops = {
.release = seq_release,
};
#if IS_ENABLED(CONFIG_IPV6)
static int clip_tbl_open(struct inode *inode, struct file *file)
{
return single_open(file, clip_tbl_show, PDE_DATA(inode));
}
static const struct file_operations clip_tbl_debugfs_fops = {
.owner = THIS_MODULE,
.open = clip_tbl_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release
};
#endif
static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
@ -646,6 +662,9 @@ int t4_setup_debugfs(struct adapter *adap)
{ "devlog", &devlog_fops, S_IRUSR, 0 },
{ "l2t", &t4_l2t_fops, S_IRUSR, 0},
{ "mps_tcam", &mps_tcam_debugfs_fops, S_IRUSR, 0 },
#if IS_ENABLED(CONFIG_IPV6)
{ "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 },
#endif
};
add_debugfs_files(adap,

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@ -62,6 +62,7 @@
#include <net/netevent.h>
#include <net/addrconf.h>
#include <net/bonding.h>
#include <net/addrconf.h>
#include <asm/uaccess.h>
#include "cxgb4.h"
@ -71,6 +72,7 @@
#include "t4fw_api.h"
#include "cxgb4_dcb.h"
#include "cxgb4_debugfs.h"
#include "clip_tbl.h"
#include "l2t.h"
#ifdef DRV_VERSION
@ -3236,40 +3238,6 @@ static int tid_init(struct tid_info *t)
return 0;
}
int cxgb4_clip_get(const struct net_device *dev,
const struct in6_addr *lip)
{
struct adapter *adap;
struct fw_clip_cmd c;
adap = netdev2adap(dev);
memset(&c, 0, sizeof(c));
c.op_to_write = htonl(FW_CMD_OP_V(FW_CLIP_CMD) |
FW_CMD_REQUEST_F | FW_CMD_WRITE_F);
c.alloc_to_len16 = htonl(FW_CLIP_CMD_ALLOC_F | FW_LEN16(c));
c.ip_hi = *(__be64 *)(lip->s6_addr);
c.ip_lo = *(__be64 *)(lip->s6_addr + 8);
return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false);
}
EXPORT_SYMBOL(cxgb4_clip_get);
int cxgb4_clip_release(const struct net_device *dev,
const struct in6_addr *lip)
{
struct adapter *adap;
struct fw_clip_cmd c;
adap = netdev2adap(dev);
memset(&c, 0, sizeof(c));
c.op_to_write = htonl(FW_CMD_OP_V(FW_CLIP_CMD) |
FW_CMD_REQUEST_F | FW_CMD_READ_F);
c.alloc_to_len16 = htonl(FW_CLIP_CMD_FREE_F | FW_LEN16(c));
c.ip_hi = *(__be64 *)(lip->s6_addr);
c.ip_lo = *(__be64 *)(lip->s6_addr + 8);
return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false);
}
EXPORT_SYMBOL(cxgb4_clip_release);
/**
* cxgb4_create_server - create an IP server
* @dev: the device
@ -4122,148 +4090,61 @@ int cxgb4_unregister_uld(enum cxgb4_uld type)
}
EXPORT_SYMBOL(cxgb4_unregister_uld);
/* Check if netdev on which event is occured belongs to us or not. Return
* success (true) if it belongs otherwise failure (false).
* Called with rcu_read_lock() held.
*/
#if IS_ENABLED(CONFIG_IPV6)
static bool cxgb4_netdev(const struct net_device *netdev)
static int cxgb4_inet6addr_handler(struct notifier_block *this,
unsigned long event, void *data)
{
struct inet6_ifaddr *ifa = data;
struct net_device *event_dev = ifa->idev->dev;
const struct device *parent = NULL;
#if IS_ENABLED(CONFIG_BONDING)
struct adapter *adap;
int i;
#endif
if (event_dev->priv_flags & IFF_802_1Q_VLAN)
event_dev = vlan_dev_real_dev(event_dev);
#if IS_ENABLED(CONFIG_BONDING)
if (event_dev->flags & IFF_MASTER) {
list_for_each_entry(adap, &adapter_list, list_node) {
switch (event) {
case NETDEV_UP:
cxgb4_clip_get(adap->port[0],
(const u32 *)ifa, 1);
break;
case NETDEV_DOWN:
cxgb4_clip_release(adap->port[0],
(const u32 *)ifa, 1);
break;
default:
break;
}
}
return NOTIFY_OK;
}
#endif
list_for_each_entry_rcu(adap, &adap_rcu_list, rcu_node)
for (i = 0; i < MAX_NPORTS; i++)
if (adap->port[i] == netdev)
return true;
return false;
}
if (event_dev)
parent = event_dev->dev.parent;
static int clip_add(struct net_device *event_dev, struct inet6_ifaddr *ifa,
unsigned long event)
{
int ret = NOTIFY_DONE;
rcu_read_lock();
if (cxgb4_netdev(event_dev)) {
if (parent && parent->driver == &cxgb4_driver.driver) {
switch (event) {
case NETDEV_UP:
ret = cxgb4_clip_get(event_dev, &ifa->addr);
if (ret < 0) {
rcu_read_unlock();
return ret;
}
ret = NOTIFY_OK;
cxgb4_clip_get(event_dev, (const u32 *)ifa, 1);
break;
case NETDEV_DOWN:
cxgb4_clip_release(event_dev, &ifa->addr);
ret = NOTIFY_OK;
cxgb4_clip_release(event_dev, (const u32 *)ifa, 1);
break;
default:
break;
}
}
rcu_read_unlock();
return ret;
}
static int cxgb4_inet6addr_handler(struct notifier_block *this,
unsigned long event, void *data)
{
struct inet6_ifaddr *ifa = data;
struct net_device *event_dev;
int ret = NOTIFY_DONE;
struct bonding *bond = netdev_priv(ifa->idev->dev);
struct list_head *iter;
struct slave *slave;
struct pci_dev *first_pdev = NULL;
if (ifa->idev->dev->priv_flags & IFF_802_1Q_VLAN) {
event_dev = vlan_dev_real_dev(ifa->idev->dev);
ret = clip_add(event_dev, ifa, event);
} else if (ifa->idev->dev->flags & IFF_MASTER) {
/* It is possible that two different adapters are bonded in one
* bond. We need to find such different adapters and add clip
* in all of them only once.
*/
bond_for_each_slave(bond, slave, iter) {
if (!first_pdev) {
ret = clip_add(slave->dev, ifa, event);
/* If clip_add is success then only initialize
* first_pdev since it means it is our device
*/
if (ret == NOTIFY_OK)
first_pdev = to_pci_dev(
slave->dev->dev.parent);
} else if (first_pdev !=
to_pci_dev(slave->dev->dev.parent))
ret = clip_add(slave->dev, ifa, event);
}
} else
ret = clip_add(ifa->idev->dev, ifa, event);
return ret;
return NOTIFY_OK;
}
static bool inet6addr_registered;
static struct notifier_block cxgb4_inet6addr_notifier = {
.notifier_call = cxgb4_inet6addr_handler
};
/* Retrieves IPv6 addresses from a root device (bond, vlan) associated with
* a physical device.
* The physical device reference is needed to send the actul CLIP command.
*/
static int update_dev_clip(struct net_device *root_dev, struct net_device *dev)
{
struct inet6_dev *idev = NULL;
struct inet6_ifaddr *ifa;
int ret = 0;
idev = __in6_dev_get(root_dev);
if (!idev)
return ret;
read_lock_bh(&idev->lock);
list_for_each_entry(ifa, &idev->addr_list, if_list) {
ret = cxgb4_clip_get(dev, &ifa->addr);
if (ret < 0)
break;
}
read_unlock_bh(&idev->lock);
return ret;
}
static int update_root_dev_clip(struct net_device *dev)
{
struct net_device *root_dev = NULL;
int i, ret = 0;
/* First populate the real net device's IPv6 addresses */
ret = update_dev_clip(dev, dev);
if (ret)
return ret;
/* Parse all bond and vlan devices layered on top of the physical dev */
root_dev = netdev_master_upper_dev_get_rcu(dev);
if (root_dev) {
ret = update_dev_clip(root_dev, dev);
if (ret)
return ret;
}
for (i = 0; i < VLAN_N_VID; i++) {
root_dev = __vlan_find_dev_deep_rcu(dev, htons(ETH_P_8021Q), i);
if (!root_dev)
continue;
ret = update_dev_clip(root_dev, dev);
if (ret)
break;
}
return ret;
}
static void update_clip(const struct adapter *adap)
{
int i;
@ -4277,7 +4158,7 @@ static void update_clip(const struct adapter *adap)
ret = 0;
if (dev)
ret = update_root_dev_clip(dev);
ret = cxgb4_update_root_dev_clip(dev);
if (ret < 0)
break;
@ -5391,6 +5272,14 @@ static int adap_init0(struct adapter *adap)
adap->tids.nftids = val[4] - val[3] + 1;
adap->sge.ingr_start = val[5];
params[0] = FW_PARAM_PFVF(CLIP_START);
params[1] = FW_PARAM_PFVF(CLIP_END);
ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val);
if (ret < 0)
goto bye;
adap->clipt_start = val[0];
adap->clipt_end = val[1];
/* query params related to active filter region */
params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START);
params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END);
@ -6211,6 +6100,18 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
adapter->params.offload = 0;
}
#if IS_ENABLED(CONFIG_IPV6)
adapter->clipt = t4_init_clip_tbl(adapter->clipt_start,
adapter->clipt_end);
if (!adapter->clipt) {
/* We tolerate a lack of clip_table, giving up
* some functionality
*/
dev_warn(&pdev->dev,
"could not allocate Clip table, continuing\n");
adapter->params.offload = 0;
}
#endif
if (is_offload(adapter) && tid_init(&adapter->tids) < 0) {
dev_warn(&pdev->dev, "could not allocate TID table, "
"continuing\n");
@ -6336,6 +6237,9 @@ static void remove_one(struct pci_dev *pdev)
cxgb_down(adapter);
free_some_resources(adapter);
#if IS_ENABLED(CONFIG_IPV6)
t4_cleanup_clip_tbl(adapter);
#endif
iounmap(adapter->regs);
if (!is_t4(adapter->params.chip))
iounmap(adapter->bar2);
@ -6374,7 +6278,10 @@ static int __init cxgb4_init_module(void)
debugfs_remove(cxgb4_debugfs_root);
#if IS_ENABLED(CONFIG_IPV6)
register_inet6addr_notifier(&cxgb4_inet6addr_notifier);
if (!inet6addr_registered) {
register_inet6addr_notifier(&cxgb4_inet6addr_notifier);
inet6addr_registered = true;
}
#endif
return ret;
@ -6383,7 +6290,10 @@ static int __init cxgb4_init_module(void)
static void __exit cxgb4_cleanup_module(void)
{
#if IS_ENABLED(CONFIG_IPV6)
unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier);
if (inet6addr_registered && list_empty(&adapter_list)) {
unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier);
inet6addr_registered = false;
}
#endif
pci_unregister_driver(&cxgb4_driver);
debugfs_remove(cxgb4_debugfs_root); /* NULL ok */

View File

@ -173,9 +173,6 @@ int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
unsigned char port, unsigned char mask);
int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid,
unsigned int queue, bool ipv6);
int cxgb4_clip_get(const struct net_device *dev, const struct in6_addr *lip);
int cxgb4_clip_release(const struct net_device *dev,
const struct in6_addr *lip);
static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)
{