diff options
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/platforms/iss/network.c | 77 |
1 files changed, 31 insertions, 46 deletions
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c index 3718cff3909a..f7709c7efca4 100644 --- a/arch/xtensa/platforms/iss/network.c +++ b/arch/xtensa/platforms/iss/network.c @@ -81,9 +81,6 @@ struct iss_net_private { int index; int mtu; - unsigned char mac[ETH_ALEN]; - int have_mac; - struct { union { struct tuntap_info tuntap; @@ -123,44 +120,41 @@ static char *split_if_spec(char *str, ...) return str; } +/* Set Ethernet address of the specified device. */ -/* Return the IP address as a string for a given device. */ - -static void dev_ip_addr(void *d, char *buf, char *bin_buf) +static void setup_etheraddr(struct net_device *dev, char *str) { - struct net_device *dev = d; - struct in_device *ip = dev->ip_ptr; - struct in_ifaddr *in; - __be32 addr; - - if (ip == NULL || ip->ifa_list == NULL) { - pr_warn("Device not assigned an IP address!\n"); - return; - } + unsigned char *addr = dev->dev_addr; - in = ip->ifa_list; + if (str == NULL) + goto random; - addr = in->ifa_address; - sprintf(buf, "%d.%d.%d.%d", addr & 0xff, (addr >> 8) & 0xff, - (addr >> 16) & 0xff, addr >> 24); - - if (bin_buf) { - bin_buf[0] = addr & 0xff; - bin_buf[1] = (addr >> 8) & 0xff; - bin_buf[2] = (addr >> 16) & 0xff; - bin_buf[3] = addr >> 24; + if (!mac_pton(str, addr)) { + pr_err("%s: failed to parse '%s' as an ethernet address\n", + dev->name, str); + goto random; } + if (is_multicast_ether_addr(addr)) { + pr_err("%s: attempt to assign a multicast ethernet address\n", + dev->name); + goto random; + } + if (!is_valid_ether_addr(addr)) { + pr_err("%s: attempt to assign an invalid ethernet address\n", + dev->name); + goto random; + } + if (!is_local_ether_addr(addr)) + pr_warn("%s: assigning a globally valid ethernet address\n", + dev->name); + return; + +random: + pr_info("%s: choosing a random ethernet address\n", + dev->name); + eth_hw_addr_random(dev); } -/* Set Ethernet address of the specified device. */ - -static inline void set_ether_mac(void *d, unsigned char *addr) -{ - struct net_device *dev = d; - memcpy(dev->dev_addr, addr, ETH_ALEN); -} - - /* ======================= TUNTAP TRANSPORT INTERFACE ====================== */ static int tuntap_open(struct iss_net_private *lp) @@ -232,6 +226,7 @@ static int tuntap_poll(struct iss_net_private *lp) static int tuntap_probe(struct iss_net_private *lp, int index, char *init) { + struct net_device *dev = lp->dev; char *dev_name = NULL, *mac_str = NULL, *rem = NULL; /* Transport should be 'tuntap': ethX=tuntap,mac,dev_name */ @@ -259,6 +254,7 @@ static int tuntap_probe(struct iss_net_private *lp, int index, char *init) } else strcpy(lp->tp.info.tuntap.dev_name, TRANSPORT_TUNTAP_NAME); + setup_etheraddr(dev, mac_str); lp->mtu = TRANSPORT_TUNTAP_MTU; @@ -369,7 +365,6 @@ static void iss_net_timer(unsigned long priv) static int iss_net_open(struct net_device *dev) { struct iss_net_private *lp = netdev_priv(dev); - char addr[sizeof("255.255.255.255\0")]; int err; spin_lock(&lp->lock); @@ -378,11 +373,6 @@ static int iss_net_open(struct net_device *dev) if (err < 0) goto out; - if (!lp->have_mac) { - dev_ip_addr(dev, addr, &lp->mac[2]); - set_ether_mac(dev, lp->mac); - } - netif_start_queue(dev); /* clear buffer - it can happen that the host side of the interface @@ -540,8 +530,6 @@ static int iss_net_configure(int index, char *init) .lock = __SPIN_LOCK_UNLOCKED(lp.lock), .dev = dev, .index = index, - .mac = { 0xfe, 0xfd, 0x0, 0x0, 0x0, 0x0 }, - .have_mac = 0, }; /* @@ -561,10 +549,7 @@ static int iss_net_configure(int index, char *init) goto errout; } - printk(KERN_INFO "Netdevice %d ", index); - if (lp->have_mac) - printk("(%pM) ", lp->mac); - printk(": "); + pr_info("Netdevice %d (%pM)\n", index, dev->dev_addr); /* sysfs register */ |