![Eric Dumazet](/assets/img/avatar_default.png)
Testing xmit_more support with netperf and connected UDP sockets, I found strange dst refcount false sharing. Current handling of IFF_XMIT_DST_RELEASE is not optimal. Dropping dst in validate_xmit_skb() is certainly too late in case packet was queued by cpu X but dequeued by cpu Y The logical point to take care of drop/force is in __dev_queue_xmit() before even taking qdisc lock. As Julian Anastasov pointed out, need for skb_dst() might come from some packet schedulers or classifiers. This patch adds new helper to cleanly express needs of various drivers or qdiscs/classifiers. Drivers that need skb_dst() in their ndo_start_xmit() should call following helper in their setup instead of the prior : dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; -> netif_keep_dst(dev); Instead of using a single bit, we use two bits, one being eventually rebuilt in bonding/team drivers. The other one, is permanent and blocks IFF_XMIT_DST_RELEASE being rebuilt in bonding/team. Eventually, we could add something smarter later. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
3773 lines
97 KiB
C
3773 lines
97 KiB
C
/*
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* Copyright IBM Corp. 2007, 2009
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* Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
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* Frank Pavlic <fpavlic@de.ibm.com>,
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* Thomas Spatzier <tspat@de.ibm.com>,
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* Frank Blaschka <frank.blaschka@de.ibm.com>
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*/
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#define KMSG_COMPONENT "qeth"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/bitops.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/etherdevice.h>
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#include <linux/mii.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/inetdevice.h>
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#include <linux/igmp.h>
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#include <linux/slab.h>
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#include <linux/if_vlan.h>
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#include <net/ip.h>
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#include <net/arp.h>
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#include <net/route.h>
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#include <net/ip6_fib.h>
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#include <net/ip6_checksum.h>
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#include <net/iucv/af_iucv.h>
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#include "qeth_l3.h"
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static int qeth_l3_set_offline(struct ccwgroup_device *);
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static int qeth_l3_recover(void *);
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static int qeth_l3_stop(struct net_device *);
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static void qeth_l3_set_multicast_list(struct net_device *);
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static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
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static int qeth_l3_register_addr_entry(struct qeth_card *,
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struct qeth_ipaddr *);
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static int qeth_l3_deregister_addr_entry(struct qeth_card *,
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struct qeth_ipaddr *);
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static int __qeth_l3_set_online(struct ccwgroup_device *, int);
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static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
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static int qeth_l3_isxdigit(char *buf)
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{
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while (*buf) {
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if (!isxdigit(*buf++))
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return 0;
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}
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return 1;
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}
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void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
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{
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sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
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}
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int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
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{
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int count = 0, rc = 0;
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unsigned int in[4];
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char c;
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rc = sscanf(buf, "%u.%u.%u.%u%c",
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&in[0], &in[1], &in[2], &in[3], &c);
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if (rc != 4 && (rc != 5 || c != '\n'))
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return -EINVAL;
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for (count = 0; count < 4; count++) {
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if (in[count] > 255)
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return -EINVAL;
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addr[count] = in[count];
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}
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return 0;
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}
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void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
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{
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sprintf(buf, "%pI6", addr);
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}
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int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
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{
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const char *end, *end_tmp, *start;
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__u16 *in;
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char num[5];
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int num2, cnt, out, found, save_cnt;
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unsigned short in_tmp[8] = {0, };
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cnt = out = found = save_cnt = num2 = 0;
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end = start = buf;
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in = (__u16 *) addr;
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memset(in, 0, 16);
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while (*end) {
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end = strchr(start, ':');
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if (end == NULL) {
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end = buf + strlen(buf);
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end_tmp = strchr(start, '\n');
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if (end_tmp != NULL)
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end = end_tmp;
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out = 1;
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}
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if ((end - start)) {
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memset(num, 0, 5);
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if ((end - start) > 4)
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return -EINVAL;
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memcpy(num, start, end - start);
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if (!qeth_l3_isxdigit(num))
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return -EINVAL;
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sscanf(start, "%x", &num2);
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if (found)
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in_tmp[save_cnt++] = num2;
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else
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in[cnt++] = num2;
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if (out)
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break;
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} else {
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if (found)
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return -EINVAL;
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found = 1;
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}
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start = ++end;
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}
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if (cnt + save_cnt > 8)
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return -EINVAL;
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cnt = 7;
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while (save_cnt)
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in[cnt--] = in_tmp[--save_cnt];
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return 0;
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}
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void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
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char *buf)
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{
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if (proto == QETH_PROT_IPV4)
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qeth_l3_ipaddr4_to_string(addr, buf);
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else if (proto == QETH_PROT_IPV6)
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qeth_l3_ipaddr6_to_string(addr, buf);
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}
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int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
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__u8 *addr)
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{
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if (proto == QETH_PROT_IPV4)
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return qeth_l3_string_to_ipaddr4(buf, addr);
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else if (proto == QETH_PROT_IPV6)
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return qeth_l3_string_to_ipaddr6(buf, addr);
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else
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return -EINVAL;
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}
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static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
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{
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int i, j;
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u8 octet;
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for (i = 0; i < len; ++i) {
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octet = addr[i];
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for (j = 7; j >= 0; --j) {
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bits[i*8 + j] = octet & 1;
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octet >>= 1;
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}
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}
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}
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int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
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struct qeth_ipaddr *addr)
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{
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struct qeth_ipato_entry *ipatoe;
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u8 addr_bits[128] = {0, };
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u8 ipatoe_bits[128] = {0, };
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int rc = 0;
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if (!card->ipato.enabled)
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return 0;
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qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
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(addr->proto == QETH_PROT_IPV4)? 4:16);
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list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
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if (addr->proto != ipatoe->proto)
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continue;
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qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
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(ipatoe->proto == QETH_PROT_IPV4) ?
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4 : 16);
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if (addr->proto == QETH_PROT_IPV4)
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rc = !memcmp(addr_bits, ipatoe_bits,
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min(32, ipatoe->mask_bits));
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else
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rc = !memcmp(addr_bits, ipatoe_bits,
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min(128, ipatoe->mask_bits));
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if (rc)
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break;
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}
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/* invert? */
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if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
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rc = !rc;
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else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
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rc = !rc;
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return rc;
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}
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/*
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* Add IP to be added to todo list. If there is already an "add todo"
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* in this list we just incremenent the reference count.
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* Returns 0 if we just incremented reference count.
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*/
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static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
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struct qeth_ipaddr *addr, int add)
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{
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struct qeth_ipaddr *tmp, *t;
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int found = 0;
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if (card->options.sniffer)
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return 0;
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list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
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if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
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(tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
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return 0;
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if ((tmp->proto == QETH_PROT_IPV4) &&
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(addr->proto == QETH_PROT_IPV4) &&
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(tmp->type == addr->type) &&
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(tmp->is_multicast == addr->is_multicast) &&
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(tmp->u.a4.addr == addr->u.a4.addr) &&
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(tmp->u.a4.mask == addr->u.a4.mask)) {
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found = 1;
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break;
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}
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if ((tmp->proto == QETH_PROT_IPV6) &&
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(addr->proto == QETH_PROT_IPV6) &&
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(tmp->type == addr->type) &&
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(tmp->is_multicast == addr->is_multicast) &&
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(tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
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(memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
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sizeof(struct in6_addr)) == 0)) {
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found = 1;
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break;
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}
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}
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if (found) {
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if (addr->users != 0)
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tmp->users += addr->users;
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else
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tmp->users += add ? 1 : -1;
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if (tmp->users == 0) {
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list_del(&tmp->entry);
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kfree(tmp);
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}
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return 0;
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} else {
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if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
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list_add(&addr->entry, card->ip_tbd_list);
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else {
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if (addr->users == 0)
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addr->users += add ? 1 : -1;
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if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
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qeth_l3_is_addr_covered_by_ipato(card, addr)) {
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QETH_CARD_TEXT(card, 2, "tkovaddr");
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addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
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}
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list_add_tail(&addr->entry, card->ip_tbd_list);
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}
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return 1;
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}
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}
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int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
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{
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unsigned long flags;
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int rc = 0;
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QETH_CARD_TEXT(card, 4, "delip");
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if (addr->proto == QETH_PROT_IPV4)
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QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
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else {
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QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
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QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
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}
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spin_lock_irqsave(&card->ip_lock, flags);
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rc = __qeth_l3_insert_ip_todo(card, addr, 0);
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spin_unlock_irqrestore(&card->ip_lock, flags);
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return rc;
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}
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int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
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{
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unsigned long flags;
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int rc = 0;
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QETH_CARD_TEXT(card, 4, "addip");
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if (addr->proto == QETH_PROT_IPV4)
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QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
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else {
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QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
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QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
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}
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spin_lock_irqsave(&card->ip_lock, flags);
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rc = __qeth_l3_insert_ip_todo(card, addr, 1);
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spin_unlock_irqrestore(&card->ip_lock, flags);
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return rc;
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}
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struct qeth_ipaddr *qeth_l3_get_addr_buffer(
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enum qeth_prot_versions prot)
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{
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struct qeth_ipaddr *addr;
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addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
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if (addr == NULL) {
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return NULL;
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}
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addr->type = QETH_IP_TYPE_NORMAL;
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addr->proto = prot;
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return addr;
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}
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static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
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{
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struct qeth_ipaddr *iptodo;
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unsigned long flags;
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QETH_CARD_TEXT(card, 4, "delmc");
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iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
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if (!iptodo) {
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QETH_CARD_TEXT(card, 2, "dmcnomem");
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return;
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}
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iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
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spin_lock_irqsave(&card->ip_lock, flags);
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if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
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kfree(iptodo);
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spin_unlock_irqrestore(&card->ip_lock, flags);
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}
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/*
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* Add/remove address to/from card's ip list, i.e. try to add or remove
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* reference to/from an IP address that is already registered on the card.
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* Returns:
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* 0 address was on card and its reference count has been adjusted,
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* but is still > 0, so nothing has to be done
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* also returns 0 if card was not on card and the todo was to delete
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* the address -> there is also nothing to be done
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* 1 address was not on card and the todo is to add it to the card's ip
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* list
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* -1 address was on card and its reference count has been decremented
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* to <= 0 by the todo -> address must be removed from card
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*/
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static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
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struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
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{
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struct qeth_ipaddr *addr;
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int found = 0;
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list_for_each_entry(addr, &card->ip_list, entry) {
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if ((addr->proto == QETH_PROT_IPV4) &&
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(todo->proto == QETH_PROT_IPV4) &&
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(addr->type == todo->type) &&
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(addr->u.a4.addr == todo->u.a4.addr) &&
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(addr->u.a4.mask == todo->u.a4.mask)) {
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found = 1;
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break;
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}
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if ((addr->proto == QETH_PROT_IPV6) &&
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(todo->proto == QETH_PROT_IPV6) &&
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(addr->type == todo->type) &&
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(addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
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(memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
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sizeof(struct in6_addr)) == 0)) {
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found = 1;
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break;
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}
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}
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if (found) {
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addr->users += todo->users;
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if (addr->users <= 0) {
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*__addr = addr;
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return -1;
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} else {
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/* for VIPA and RXIP limit refcount to 1 */
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if (addr->type != QETH_IP_TYPE_NORMAL)
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addr->users = 1;
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return 0;
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}
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}
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if (todo->users > 0) {
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/* for VIPA and RXIP limit refcount to 1 */
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if (todo->type != QETH_IP_TYPE_NORMAL)
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todo->users = 1;
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return 1;
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} else
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return 0;
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}
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static void __qeth_l3_delete_all_mc(struct qeth_card *card,
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unsigned long *flags)
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{
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struct list_head fail_list;
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struct qeth_ipaddr *addr, *tmp;
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int rc;
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INIT_LIST_HEAD(&fail_list);
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again:
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list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
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if (addr->is_multicast) {
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list_del(&addr->entry);
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spin_unlock_irqrestore(&card->ip_lock, *flags);
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rc = qeth_l3_deregister_addr_entry(card, addr);
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spin_lock_irqsave(&card->ip_lock, *flags);
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if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
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kfree(addr);
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else
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list_add_tail(&addr->entry, &fail_list);
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goto again;
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}
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}
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list_splice(&fail_list, &card->ip_list);
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}
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void qeth_l3_set_ip_addr_list(struct qeth_card *card)
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{
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struct list_head *tbd_list;
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struct qeth_ipaddr *todo, *addr;
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unsigned long flags;
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int rc;
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QETH_CARD_TEXT(card, 2, "sdiplist");
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QETH_CARD_HEX(card, 2, &card, sizeof(void *));
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if ((card->state != CARD_STATE_UP &&
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card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
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return;
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}
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spin_lock_irqsave(&card->ip_lock, flags);
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tbd_list = card->ip_tbd_list;
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card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
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if (!card->ip_tbd_list) {
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QETH_CARD_TEXT(card, 0, "silnomem");
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card->ip_tbd_list = tbd_list;
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spin_unlock_irqrestore(&card->ip_lock, flags);
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return;
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} else
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INIT_LIST_HEAD(card->ip_tbd_list);
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while (!list_empty(tbd_list)) {
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todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
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list_del(&todo->entry);
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if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
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__qeth_l3_delete_all_mc(card, &flags);
|
|
kfree(todo);
|
|
continue;
|
|
}
|
|
rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
|
|
if (rc == 0) {
|
|
/* nothing to be done; only adjusted refcount */
|
|
kfree(todo);
|
|
} else if (rc == 1) {
|
|
/* new entry to be added to on-card list */
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
rc = qeth_l3_register_addr_entry(card, todo);
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
if (!rc || (rc == IPA_RC_LAN_OFFLINE))
|
|
list_add_tail(&todo->entry, &card->ip_list);
|
|
else
|
|
kfree(todo);
|
|
} else if (rc == -1) {
|
|
/* on-card entry to be removed */
|
|
list_del_init(&addr->entry);
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
rc = qeth_l3_deregister_addr_entry(card, addr);
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
|
|
kfree(addr);
|
|
else
|
|
list_add_tail(&addr->entry, &card->ip_list);
|
|
kfree(todo);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
kfree(tbd_list);
|
|
}
|
|
|
|
static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
|
|
{
|
|
struct qeth_ipaddr *addr, *tmp;
|
|
unsigned long flags;
|
|
|
|
QETH_CARD_TEXT(card, 4, "clearip");
|
|
if (recover && card->options.sniffer)
|
|
return;
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
/* clear todo list */
|
|
list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
|
|
list_del(&addr->entry);
|
|
kfree(addr);
|
|
}
|
|
|
|
while (!list_empty(&card->ip_list)) {
|
|
addr = list_entry(card->ip_list.next,
|
|
struct qeth_ipaddr, entry);
|
|
list_del_init(&addr->entry);
|
|
if (!recover || addr->is_multicast) {
|
|
kfree(addr);
|
|
continue;
|
|
}
|
|
list_add_tail(&addr->entry, card->ip_tbd_list);
|
|
}
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
}
|
|
|
|
static int qeth_l3_address_exists_in_list(struct list_head *list,
|
|
struct qeth_ipaddr *addr, int same_type)
|
|
{
|
|
struct qeth_ipaddr *tmp;
|
|
|
|
list_for_each_entry(tmp, list, entry) {
|
|
if ((tmp->proto == QETH_PROT_IPV4) &&
|
|
(addr->proto == QETH_PROT_IPV4) &&
|
|
((same_type && (tmp->type == addr->type)) ||
|
|
(!same_type && (tmp->type != addr->type))) &&
|
|
(tmp->u.a4.addr == addr->u.a4.addr))
|
|
return 1;
|
|
|
|
if ((tmp->proto == QETH_PROT_IPV6) &&
|
|
(addr->proto == QETH_PROT_IPV6) &&
|
|
((same_type && (tmp->type == addr->type)) ||
|
|
(!same_type && (tmp->type != addr->type))) &&
|
|
(memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
|
|
sizeof(struct in6_addr)) == 0))
|
|
return 1;
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_send_setdelmc(struct qeth_card *card,
|
|
struct qeth_ipaddr *addr, int ipacmd)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "setdelmc");
|
|
|
|
iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
|
|
if (addr->proto == QETH_PROT_IPV6)
|
|
memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
|
|
sizeof(struct in6_addr));
|
|
else
|
|
memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
|
|
|
|
rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
|
|
{
|
|
int i, j;
|
|
for (i = 0; i < 16; i++) {
|
|
j = (len) - (i * 8);
|
|
if (j >= 8)
|
|
netmask[i] = 0xff;
|
|
else if (j > 0)
|
|
netmask[i] = (u8)(0xFF00 >> j);
|
|
else
|
|
netmask[i] = 0;
|
|
}
|
|
}
|
|
|
|
static int qeth_l3_send_setdelip(struct qeth_card *card,
|
|
struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
__u8 netmask[16];
|
|
|
|
QETH_CARD_TEXT(card, 4, "setdelip");
|
|
QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
|
|
|
|
iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
if (addr->proto == QETH_PROT_IPV6) {
|
|
memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
|
|
sizeof(struct in6_addr));
|
|
qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
|
|
memcpy(cmd->data.setdelip6.mask, netmask,
|
|
sizeof(struct in6_addr));
|
|
cmd->data.setdelip6.flags = flags;
|
|
} else {
|
|
memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
|
|
memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
|
|
cmd->data.setdelip4.flags = flags;
|
|
}
|
|
|
|
rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_send_setrouting(struct qeth_card *card,
|
|
enum qeth_routing_types type, enum qeth_prot_versions prot)
|
|
{
|
|
int rc;
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_CARD_TEXT(card, 4, "setroutg");
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.setrtg.type = (type);
|
|
rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_correct_routing_type(struct qeth_card *card,
|
|
enum qeth_routing_types *type, enum qeth_prot_versions prot)
|
|
{
|
|
if (card->info.type == QETH_CARD_TYPE_IQD) {
|
|
switch (*type) {
|
|
case NO_ROUTER:
|
|
case PRIMARY_CONNECTOR:
|
|
case SECONDARY_CONNECTOR:
|
|
case MULTICAST_ROUTER:
|
|
return 0;
|
|
default:
|
|
goto out_inval;
|
|
}
|
|
} else {
|
|
switch (*type) {
|
|
case NO_ROUTER:
|
|
case PRIMARY_ROUTER:
|
|
case SECONDARY_ROUTER:
|
|
return 0;
|
|
case MULTICAST_ROUTER:
|
|
if (qeth_is_ipafunc_supported(card, prot,
|
|
IPA_OSA_MC_ROUTER))
|
|
return 0;
|
|
default:
|
|
goto out_inval;
|
|
}
|
|
}
|
|
out_inval:
|
|
*type = NO_ROUTER;
|
|
return -EINVAL;
|
|
}
|
|
|
|
int qeth_l3_setrouting_v4(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "setrtg4");
|
|
|
|
rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
|
|
QETH_PROT_IPV4);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = qeth_l3_send_setrouting(card, card->options.route4.type,
|
|
QETH_PROT_IPV4);
|
|
if (rc) {
|
|
card->options.route4.type = NO_ROUTER;
|
|
QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
|
|
" on %s. Type set to 'no router'.\n", rc,
|
|
QETH_CARD_IFNAME(card));
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
int qeth_l3_setrouting_v6(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "setrtg6");
|
|
#ifdef CONFIG_QETH_IPV6
|
|
|
|
if (!qeth_is_supported(card, IPA_IPV6))
|
|
return 0;
|
|
rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
|
|
QETH_PROT_IPV6);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = qeth_l3_send_setrouting(card, card->options.route6.type,
|
|
QETH_PROT_IPV6);
|
|
if (rc) {
|
|
card->options.route6.type = NO_ROUTER;
|
|
QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
|
|
" on %s. Type set to 'no router'.\n", rc,
|
|
QETH_CARD_IFNAME(card));
|
|
}
|
|
#endif
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* IP address takeover related functions
|
|
*/
|
|
static void qeth_l3_clear_ipato_list(struct qeth_card *card)
|
|
{
|
|
|
|
struct qeth_ipato_entry *ipatoe, *tmp;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
|
|
list_del(&ipatoe->entry);
|
|
kfree(ipatoe);
|
|
}
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
}
|
|
|
|
int qeth_l3_add_ipato_entry(struct qeth_card *card,
|
|
struct qeth_ipato_entry *new)
|
|
{
|
|
struct qeth_ipato_entry *ipatoe;
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 2, "addipato");
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
|
|
if (ipatoe->proto != new->proto)
|
|
continue;
|
|
if (!memcmp(ipatoe->addr, new->addr,
|
|
(ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
|
|
(ipatoe->mask_bits == new->mask_bits)) {
|
|
rc = -EEXIST;
|
|
break;
|
|
}
|
|
}
|
|
if (!rc)
|
|
list_add_tail(&new->entry, &card->ipato.entries);
|
|
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
return rc;
|
|
}
|
|
|
|
void qeth_l3_del_ipato_entry(struct qeth_card *card,
|
|
enum qeth_prot_versions proto, u8 *addr, int mask_bits)
|
|
{
|
|
struct qeth_ipato_entry *ipatoe, *tmp;
|
|
unsigned long flags;
|
|
|
|
QETH_CARD_TEXT(card, 2, "delipato");
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
|
|
if (ipatoe->proto != proto)
|
|
continue;
|
|
if (!memcmp(ipatoe->addr, addr,
|
|
(proto == QETH_PROT_IPV4)? 4:16) &&
|
|
(ipatoe->mask_bits == mask_bits)) {
|
|
list_del(&ipatoe->entry);
|
|
kfree(ipatoe);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
}
|
|
|
|
/*
|
|
* VIPA related functions
|
|
*/
|
|
int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
|
|
const u8 *addr)
|
|
{
|
|
struct qeth_ipaddr *ipaddr;
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
ipaddr = qeth_l3_get_addr_buffer(proto);
|
|
if (ipaddr) {
|
|
if (proto == QETH_PROT_IPV4) {
|
|
QETH_CARD_TEXT(card, 2, "addvipa4");
|
|
memcpy(&ipaddr->u.a4.addr, addr, 4);
|
|
ipaddr->u.a4.mask = 0;
|
|
} else if (proto == QETH_PROT_IPV6) {
|
|
QETH_CARD_TEXT(card, 2, "addvipa6");
|
|
memcpy(&ipaddr->u.a6.addr, addr, 16);
|
|
ipaddr->u.a6.pfxlen = 0;
|
|
}
|
|
ipaddr->type = QETH_IP_TYPE_VIPA;
|
|
ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
|
|
ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
|
|
} else
|
|
return -ENOMEM;
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
|
|
qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
|
|
rc = -EEXIST;
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
if (rc) {
|
|
kfree(ipaddr);
|
|
return rc;
|
|
}
|
|
if (!qeth_l3_add_ip(card, ipaddr))
|
|
kfree(ipaddr);
|
|
qeth_l3_set_ip_addr_list(card);
|
|
return rc;
|
|
}
|
|
|
|
void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
|
|
const u8 *addr)
|
|
{
|
|
struct qeth_ipaddr *ipaddr;
|
|
|
|
ipaddr = qeth_l3_get_addr_buffer(proto);
|
|
if (ipaddr) {
|
|
if (proto == QETH_PROT_IPV4) {
|
|
QETH_CARD_TEXT(card, 2, "delvipa4");
|
|
memcpy(&ipaddr->u.a4.addr, addr, 4);
|
|
ipaddr->u.a4.mask = 0;
|
|
} else if (proto == QETH_PROT_IPV6) {
|
|
QETH_CARD_TEXT(card, 2, "delvipa6");
|
|
memcpy(&ipaddr->u.a6.addr, addr, 16);
|
|
ipaddr->u.a6.pfxlen = 0;
|
|
}
|
|
ipaddr->type = QETH_IP_TYPE_VIPA;
|
|
} else
|
|
return;
|
|
if (!qeth_l3_delete_ip(card, ipaddr))
|
|
kfree(ipaddr);
|
|
qeth_l3_set_ip_addr_list(card);
|
|
}
|
|
|
|
/*
|
|
* proxy ARP related functions
|
|
*/
|
|
int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
|
|
const u8 *addr)
|
|
{
|
|
struct qeth_ipaddr *ipaddr;
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
ipaddr = qeth_l3_get_addr_buffer(proto);
|
|
if (ipaddr) {
|
|
if (proto == QETH_PROT_IPV4) {
|
|
QETH_CARD_TEXT(card, 2, "addrxip4");
|
|
memcpy(&ipaddr->u.a4.addr, addr, 4);
|
|
ipaddr->u.a4.mask = 0;
|
|
} else if (proto == QETH_PROT_IPV6) {
|
|
QETH_CARD_TEXT(card, 2, "addrxip6");
|
|
memcpy(&ipaddr->u.a6.addr, addr, 16);
|
|
ipaddr->u.a6.pfxlen = 0;
|
|
}
|
|
ipaddr->type = QETH_IP_TYPE_RXIP;
|
|
ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
|
|
ipaddr->del_flags = 0;
|
|
} else
|
|
return -ENOMEM;
|
|
spin_lock_irqsave(&card->ip_lock, flags);
|
|
if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
|
|
qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
|
|
rc = -EEXIST;
|
|
spin_unlock_irqrestore(&card->ip_lock, flags);
|
|
if (rc) {
|
|
kfree(ipaddr);
|
|
return rc;
|
|
}
|
|
if (!qeth_l3_add_ip(card, ipaddr))
|
|
kfree(ipaddr);
|
|
qeth_l3_set_ip_addr_list(card);
|
|
return 0;
|
|
}
|
|
|
|
void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
|
|
const u8 *addr)
|
|
{
|
|
struct qeth_ipaddr *ipaddr;
|
|
|
|
ipaddr = qeth_l3_get_addr_buffer(proto);
|
|
if (ipaddr) {
|
|
if (proto == QETH_PROT_IPV4) {
|
|
QETH_CARD_TEXT(card, 2, "addrxip4");
|
|
memcpy(&ipaddr->u.a4.addr, addr, 4);
|
|
ipaddr->u.a4.mask = 0;
|
|
} else if (proto == QETH_PROT_IPV6) {
|
|
QETH_CARD_TEXT(card, 2, "addrxip6");
|
|
memcpy(&ipaddr->u.a6.addr, addr, 16);
|
|
ipaddr->u.a6.pfxlen = 0;
|
|
}
|
|
ipaddr->type = QETH_IP_TYPE_RXIP;
|
|
} else
|
|
return;
|
|
if (!qeth_l3_delete_ip(card, ipaddr))
|
|
kfree(ipaddr);
|
|
qeth_l3_set_ip_addr_list(card);
|
|
}
|
|
|
|
static int qeth_l3_register_addr_entry(struct qeth_card *card,
|
|
struct qeth_ipaddr *addr)
|
|
{
|
|
char buf[50];
|
|
int rc = 0;
|
|
int cnt = 3;
|
|
|
|
if (addr->proto == QETH_PROT_IPV4) {
|
|
QETH_CARD_TEXT(card, 2, "setaddr4");
|
|
QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
|
|
} else if (addr->proto == QETH_PROT_IPV6) {
|
|
QETH_CARD_TEXT(card, 2, "setaddr6");
|
|
QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
|
|
QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
|
|
} else {
|
|
QETH_CARD_TEXT(card, 2, "setaddr?");
|
|
QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
|
|
}
|
|
do {
|
|
if (addr->is_multicast)
|
|
rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
|
|
else
|
|
rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
|
|
addr->set_flags);
|
|
if (rc)
|
|
QETH_CARD_TEXT(card, 2, "failed");
|
|
} while ((--cnt > 0) && rc);
|
|
if (rc) {
|
|
QETH_CARD_TEXT(card, 2, "FAILED");
|
|
qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
|
|
dev_warn(&card->gdev->dev,
|
|
"Registering IP address %s failed\n", buf);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
|
|
struct qeth_ipaddr *addr)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (addr->proto == QETH_PROT_IPV4) {
|
|
QETH_CARD_TEXT(card, 2, "deladdr4");
|
|
QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
|
|
} else if (addr->proto == QETH_PROT_IPV6) {
|
|
QETH_CARD_TEXT(card, 2, "deladdr6");
|
|
QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
|
|
QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
|
|
} else {
|
|
QETH_CARD_TEXT(card, 2, "deladdr?");
|
|
QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
|
|
}
|
|
if (addr->is_multicast)
|
|
rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
|
|
else
|
|
rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
|
|
addr->del_flags);
|
|
if (rc)
|
|
QETH_CARD_TEXT(card, 2, "failed");
|
|
|
|
return rc;
|
|
}
|
|
|
|
static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
|
|
{
|
|
if (cast_type == RTN_MULTICAST)
|
|
return QETH_CAST_MULTICAST;
|
|
if (cast_type == RTN_BROADCAST)
|
|
return QETH_CAST_BROADCAST;
|
|
return QETH_CAST_UNICAST;
|
|
}
|
|
|
|
static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
|
|
{
|
|
u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
|
|
if (cast_type == RTN_MULTICAST)
|
|
return ct | QETH_CAST_MULTICAST;
|
|
if (cast_type == RTN_ANYCAST)
|
|
return ct | QETH_CAST_ANYCAST;
|
|
if (cast_type == RTN_BROADCAST)
|
|
return ct | QETH_CAST_BROADCAST;
|
|
return ct | QETH_CAST_UNICAST;
|
|
}
|
|
|
|
static int qeth_l3_setadapter_parms(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "setadprm");
|
|
|
|
if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
|
|
dev_info(&card->gdev->dev,
|
|
"set adapter parameters not supported.\n");
|
|
QETH_DBF_TEXT(SETUP, 2, " notsupp");
|
|
return 0;
|
|
}
|
|
rc = qeth_query_setadapterparms(card);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
|
|
"0x%x\n", dev_name(&card->gdev->dev), rc);
|
|
return rc;
|
|
}
|
|
if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
|
|
rc = qeth_setadpparms_change_macaddr(card);
|
|
if (rc)
|
|
dev_warn(&card->gdev->dev, "Reading the adapter MAC"
|
|
" address failed\n");
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "defadpcb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
if (cmd->hdr.return_code == 0) {
|
|
cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
|
|
if (cmd->hdr.prot_version == QETH_PROT_IPV4)
|
|
card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
|
|
if (cmd->hdr.prot_version == QETH_PROT_IPV6)
|
|
card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
|
|
}
|
|
if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
|
|
cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
|
|
card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
|
|
QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
|
|
}
|
|
if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
|
|
cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
|
|
card->info.tx_csum_mask =
|
|
cmd->data.setassparms.data.flags_32bit;
|
|
QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
|
|
struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
|
|
__u16 len, enum qeth_prot_versions prot)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "getasscm");
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
|
|
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.setassparms.hdr.assist_no = ipa_func;
|
|
cmd->data.setassparms.hdr.length = 8 + len;
|
|
cmd->data.setassparms.hdr.command_code = cmd_code;
|
|
cmd->data.setassparms.hdr.return_code = 0;
|
|
cmd->data.setassparms.hdr.seq_no = 0;
|
|
|
|
return iob;
|
|
}
|
|
|
|
static int qeth_l3_send_setassparms(struct qeth_card *card,
|
|
struct qeth_cmd_buffer *iob, __u16 len, long data,
|
|
int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
|
|
unsigned long),
|
|
void *reply_param)
|
|
{
|
|
int rc;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "sendassp");
|
|
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
if (len <= sizeof(__u32))
|
|
cmd->data.setassparms.data.flags_32bit = (__u32) data;
|
|
else /* (len > sizeof(__u32)) */
|
|
memcpy(&cmd->data.setassparms.data, (void *) data, len);
|
|
|
|
rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
|
|
return rc;
|
|
}
|
|
|
|
#ifdef CONFIG_QETH_IPV6
|
|
static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
|
|
enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_CARD_TEXT(card, 4, "simassp6");
|
|
iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
|
|
0, QETH_PROT_IPV6);
|
|
rc = qeth_l3_send_setassparms(card, iob, 0, 0,
|
|
qeth_l3_default_setassparms_cb, NULL);
|
|
return rc;
|
|
}
|
|
#endif
|
|
|
|
static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
|
|
enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
|
|
{
|
|
int rc;
|
|
int length = 0;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_CARD_TEXT(card, 4, "simassp4");
|
|
if (data)
|
|
length = sizeof(__u32);
|
|
iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
|
|
length, QETH_PROT_IPV4);
|
|
rc = qeth_l3_send_setassparms(card, iob, length, data,
|
|
qeth_l3_default_setassparms_cb, NULL);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "ipaarp");
|
|
|
|
if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
|
|
dev_info(&card->gdev->dev,
|
|
"ARP processing not supported on %s!\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return 0;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev,
|
|
"Starting ARP processing support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "ipaipfrg");
|
|
|
|
if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
|
|
dev_info(&card->gdev->dev,
|
|
"Hardware IP fragmentation not supported on %s\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev,
|
|
"Starting IP fragmentation support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
} else
|
|
dev_info(&card->gdev->dev,
|
|
"Hardware IP fragmentation enabled \n");
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "stsrcmac");
|
|
|
|
if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
|
|
dev_info(&card->gdev->dev,
|
|
"Inbound source MAC-address not supported on %s\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc)
|
|
dev_warn(&card->gdev->dev,
|
|
"Starting source MAC-address support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "strtvlan");
|
|
|
|
if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
|
|
dev_info(&card->gdev->dev,
|
|
"VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev,
|
|
"Starting VLAN support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
} else {
|
|
dev_info(&card->gdev->dev, "VLAN enabled\n");
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "stmcast");
|
|
|
|
if (!qeth_is_supported(card, IPA_MULTICASTING)) {
|
|
dev_info(&card->gdev->dev,
|
|
"Multicast not supported on %s\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev,
|
|
"Starting multicast support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
} else {
|
|
dev_info(&card->gdev->dev, "Multicast enabled\n");
|
|
card->dev->flags |= IFF_MULTICAST;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
#ifdef CONFIG_QETH_IPV6
|
|
static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "softipv6");
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_IQD)
|
|
goto out;
|
|
|
|
rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
|
|
if (rc) {
|
|
dev_err(&card->gdev->dev,
|
|
"Activating IPv6 support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
|
|
IPA_CMD_ASS_START, 3);
|
|
if (rc) {
|
|
dev_err(&card->gdev->dev,
|
|
"Activating IPv6 support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
|
|
IPA_CMD_ASS_START);
|
|
if (rc) {
|
|
dev_err(&card->gdev->dev,
|
|
"Activating IPv6 support for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
|
|
IPA_CMD_ASS_START);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev,
|
|
"Enabling the passthrough mode for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
out:
|
|
dev_info(&card->gdev->dev, "IPV6 enabled\n");
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "strtipv6");
|
|
|
|
if (!qeth_is_supported(card, IPA_IPV6)) {
|
|
dev_info(&card->gdev->dev,
|
|
"IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
|
|
return 0;
|
|
}
|
|
#ifdef CONFIG_QETH_IPV6
|
|
rc = qeth_l3_softsetup_ipv6(card);
|
|
#endif
|
|
return rc ;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "stbrdcst");
|
|
card->info.broadcast_capable = 0;
|
|
if (!qeth_is_supported(card, IPA_FILTERING)) {
|
|
dev_info(&card->gdev->dev,
|
|
"Broadcast not supported on %s\n",
|
|
QETH_CARD_IFNAME(card));
|
|
rc = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
|
|
"%s failed\n", QETH_CARD_IFNAME(card));
|
|
goto out;
|
|
}
|
|
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
|
|
IPA_CMD_ASS_CONFIGURE, 1);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev,
|
|
"Setting up broadcast filtering for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
goto out;
|
|
}
|
|
card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
|
|
dev_info(&card->gdev->dev, "Broadcast enabled\n");
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
|
|
IPA_CMD_ASS_ENABLE, 1);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev, "Setting up broadcast echo "
|
|
"filtering for %s failed\n", QETH_CARD_IFNAME(card));
|
|
goto out;
|
|
}
|
|
card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
|
|
out:
|
|
if (card->info.broadcast_capable)
|
|
card->dev->flags |= IFF_BROADCAST;
|
|
else
|
|
card->dev->flags &= ~IFF_BROADCAST;
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_send_checksum_command(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
|
|
"failed, using SW checksumming\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
|
|
IPA_CMD_ASS_ENABLE,
|
|
card->info.csum_mask);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
|
|
"failed, using SW checksumming\n",
|
|
QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (on) {
|
|
rc = qeth_l3_send_checksum_command(card);
|
|
if (rc)
|
|
return -EIO;
|
|
dev_info(&card->gdev->dev,
|
|
"HW Checksumming (inbound) enabled\n");
|
|
} else {
|
|
rc = qeth_l3_send_simple_setassparms(card,
|
|
IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
|
|
if (rc)
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
|
|
{
|
|
QETH_CARD_TEXT(card, 3, "strtcsum");
|
|
|
|
if (card->dev->features & NETIF_F_RXCSUM) {
|
|
rtnl_lock();
|
|
/* force set_features call */
|
|
card->dev->features &= ~NETIF_F_RXCSUM;
|
|
netdev_update_features(card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
|
|
return rc;
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc)
|
|
goto err_out;
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
|
|
IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
|
|
if (rc)
|
|
goto err_out;
|
|
dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
|
|
return rc;
|
|
err_out:
|
|
dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
|
|
"failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_tso(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "sttso");
|
|
|
|
if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
|
|
dev_info(&card->gdev->dev,
|
|
"Outbound TSO not supported on %s\n",
|
|
QETH_CARD_IFNAME(card));
|
|
rc = -EOPNOTSUPP;
|
|
} else {
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
|
|
IPA_CMD_ASS_START, 0);
|
|
if (rc)
|
|
dev_warn(&card->gdev->dev, "Starting outbound TCP "
|
|
"segmentation offload for %s failed\n",
|
|
QETH_CARD_IFNAME(card));
|
|
else
|
|
dev_info(&card->gdev->dev,
|
|
"Outbound TSO enabled\n");
|
|
}
|
|
if (rc)
|
|
card->dev->features &= ~NETIF_F_TSO;
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_start_ipassists(struct qeth_card *card)
|
|
{
|
|
QETH_CARD_TEXT(card, 3, "strtipas");
|
|
|
|
if (qeth_set_access_ctrl_online(card, 0))
|
|
return -EIO;
|
|
qeth_l3_start_ipa_arp_processing(card); /* go on*/
|
|
qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
|
|
qeth_l3_start_ipa_source_mac(card); /* go on*/
|
|
qeth_l3_start_ipa_vlan(card); /* go on*/
|
|
qeth_l3_start_ipa_multicast(card); /* go on*/
|
|
qeth_l3_start_ipa_ipv6(card); /* go on*/
|
|
qeth_l3_start_ipa_broadcast(card); /* go on*/
|
|
qeth_l3_start_ipa_checksum(card); /* go on*/
|
|
qeth_l3_start_ipa_tx_checksum(card);
|
|
qeth_l3_start_ipa_tso(card); /* go on*/
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
if (cmd->hdr.return_code == 0)
|
|
memcpy(card->dev->dev_addr,
|
|
cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
|
|
else
|
|
eth_random_addr(card->dev->dev_addr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "hsrmac");
|
|
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
|
|
QETH_PROT_IPV6);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
*((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
|
|
card->info.unique_id;
|
|
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
|
|
NULL);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
if (cmd->hdr.return_code == 0)
|
|
card->info.unique_id = *((__u16 *)
|
|
&cmd->data.create_destroy_addr.unique_id[6]);
|
|
else {
|
|
card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
|
|
UNIQUE_ID_NOT_BY_CARD;
|
|
dev_warn(&card->gdev->dev, "The network adapter failed to "
|
|
"generate a unique ID\n");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_get_unique_id(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "guniqeid");
|
|
|
|
if (!qeth_is_supported(card, IPA_IPV6)) {
|
|
card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
|
|
UNIQUE_ID_NOT_BY_CARD;
|
|
return 0;
|
|
}
|
|
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
|
|
QETH_PROT_IPV6);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
*((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
|
|
card->info.unique_id;
|
|
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
|
|
unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
__u16 rc;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "diastrcb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *)data;
|
|
rc = cmd->hdr.return_code;
|
|
if (rc)
|
|
QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
|
|
switch (cmd->data.diagass.action) {
|
|
case QETH_DIAGS_CMD_TRACE_QUERY:
|
|
break;
|
|
case QETH_DIAGS_CMD_TRACE_DISABLE:
|
|
switch (rc) {
|
|
case 0:
|
|
case IPA_RC_INVALID_SUBCMD:
|
|
card->info.promisc_mode = SET_PROMISC_MODE_OFF;
|
|
dev_info(&card->gdev->dev, "The HiperSockets network "
|
|
"traffic analyzer is deactivated\n");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case QETH_DIAGS_CMD_TRACE_ENABLE:
|
|
switch (rc) {
|
|
case 0:
|
|
card->info.promisc_mode = SET_PROMISC_MODE_ON;
|
|
dev_info(&card->gdev->dev, "The HiperSockets network "
|
|
"traffic analyzer is activated\n");
|
|
break;
|
|
case IPA_RC_HARDWARE_AUTH_ERROR:
|
|
dev_warn(&card->gdev->dev, "The device is not "
|
|
"authorized to run as a HiperSockets network "
|
|
"traffic analyzer\n");
|
|
break;
|
|
case IPA_RC_TRACE_ALREADY_ACTIVE:
|
|
dev_warn(&card->gdev->dev, "A HiperSockets "
|
|
"network traffic analyzer is already "
|
|
"active in the HiperSockets LAN\n");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
|
|
cmd->data.diagass.action, QETH_CARD_IFNAME(card));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "diagtrac");
|
|
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.diagass.subcmd_len = 16;
|
|
cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
|
|
cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
|
|
cmd->data.diagass.action = diags_cmd;
|
|
return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
|
|
}
|
|
|
|
static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
|
|
struct net_device *dev)
|
|
{
|
|
ip_eth_mc_map(ipm, mac);
|
|
}
|
|
|
|
static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
|
|
{
|
|
struct qeth_ipaddr *ipm;
|
|
struct ip_mc_list *im4;
|
|
char buf[MAX_ADDR_LEN];
|
|
|
|
QETH_CARD_TEXT(card, 4, "addmc");
|
|
for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
|
|
im4 = rcu_dereference(im4->next_rcu)) {
|
|
qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
|
|
ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
|
|
if (!ipm)
|
|
continue;
|
|
ipm->u.a4.addr = im4->multiaddr;
|
|
memcpy(ipm->mac, buf, OSA_ADDR_LEN);
|
|
ipm->is_multicast = 1;
|
|
if (!qeth_l3_add_ip(card, ipm))
|
|
kfree(ipm);
|
|
}
|
|
}
|
|
|
|
/* called with rcu_read_lock */
|
|
static void qeth_l3_add_vlan_mc(struct qeth_card *card)
|
|
{
|
|
struct in_device *in_dev;
|
|
u16 vid;
|
|
|
|
QETH_CARD_TEXT(card, 4, "addmcvl");
|
|
if (!qeth_is_supported(card, IPA_FULL_VLAN))
|
|
return;
|
|
|
|
for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
|
|
struct net_device *netdev;
|
|
|
|
netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
|
|
vid);
|
|
if (netdev == NULL ||
|
|
!(netdev->flags & IFF_UP))
|
|
continue;
|
|
in_dev = __in_dev_get_rcu(netdev);
|
|
if (!in_dev)
|
|
continue;
|
|
qeth_l3_add_mc(card, in_dev);
|
|
}
|
|
}
|
|
|
|
static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
|
|
{
|
|
struct in_device *in4_dev;
|
|
|
|
QETH_CARD_TEXT(card, 4, "chkmcv4");
|
|
rcu_read_lock();
|
|
in4_dev = __in_dev_get_rcu(card->dev);
|
|
if (in4_dev == NULL)
|
|
goto unlock;
|
|
qeth_l3_add_mc(card, in4_dev);
|
|
qeth_l3_add_vlan_mc(card);
|
|
unlock:
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
#ifdef CONFIG_QETH_IPV6
|
|
static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
|
|
{
|
|
struct qeth_ipaddr *ipm;
|
|
struct ifmcaddr6 *im6;
|
|
char buf[MAX_ADDR_LEN];
|
|
|
|
QETH_CARD_TEXT(card, 4, "addmc6");
|
|
for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
|
|
ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
|
|
ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
|
|
if (!ipm)
|
|
continue;
|
|
ipm->is_multicast = 1;
|
|
memcpy(ipm->mac, buf, OSA_ADDR_LEN);
|
|
memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
|
|
sizeof(struct in6_addr));
|
|
if (!qeth_l3_add_ip(card, ipm))
|
|
kfree(ipm);
|
|
}
|
|
}
|
|
|
|
/* called with rcu_read_lock */
|
|
static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
|
|
{
|
|
struct inet6_dev *in_dev;
|
|
u16 vid;
|
|
|
|
QETH_CARD_TEXT(card, 4, "admc6vl");
|
|
if (!qeth_is_supported(card, IPA_FULL_VLAN))
|
|
return;
|
|
|
|
for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
|
|
struct net_device *netdev;
|
|
|
|
netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
|
|
vid);
|
|
if (netdev == NULL ||
|
|
!(netdev->flags & IFF_UP))
|
|
continue;
|
|
in_dev = in6_dev_get(netdev);
|
|
if (!in_dev)
|
|
continue;
|
|
read_lock_bh(&in_dev->lock);
|
|
qeth_l3_add_mc6(card, in_dev);
|
|
read_unlock_bh(&in_dev->lock);
|
|
in6_dev_put(in_dev);
|
|
}
|
|
}
|
|
|
|
static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
|
|
{
|
|
struct inet6_dev *in6_dev;
|
|
|
|
QETH_CARD_TEXT(card, 4, "chkmcv6");
|
|
if (!qeth_is_supported(card, IPA_IPV6))
|
|
return ;
|
|
in6_dev = in6_dev_get(card->dev);
|
|
if (in6_dev == NULL)
|
|
return;
|
|
rcu_read_lock();
|
|
read_lock_bh(&in6_dev->lock);
|
|
qeth_l3_add_mc6(card, in6_dev);
|
|
qeth_l3_add_vlan_mc6(card);
|
|
read_unlock_bh(&in6_dev->lock);
|
|
rcu_read_unlock();
|
|
in6_dev_put(in6_dev);
|
|
}
|
|
#endif /* CONFIG_QETH_IPV6 */
|
|
|
|
static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
|
|
unsigned short vid)
|
|
{
|
|
struct in_device *in_dev;
|
|
struct in_ifaddr *ifa;
|
|
struct qeth_ipaddr *addr;
|
|
struct net_device *netdev;
|
|
|
|
QETH_CARD_TEXT(card, 4, "frvaddr4");
|
|
|
|
netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
|
|
if (!netdev)
|
|
return;
|
|
in_dev = in_dev_get(netdev);
|
|
if (!in_dev)
|
|
return;
|
|
for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
|
|
addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
|
|
if (addr) {
|
|
addr->u.a4.addr = ifa->ifa_address;
|
|
addr->u.a4.mask = ifa->ifa_mask;
|
|
addr->type = QETH_IP_TYPE_NORMAL;
|
|
if (!qeth_l3_delete_ip(card, addr))
|
|
kfree(addr);
|
|
}
|
|
}
|
|
in_dev_put(in_dev);
|
|
}
|
|
|
|
static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
|
|
unsigned short vid)
|
|
{
|
|
#ifdef CONFIG_QETH_IPV6
|
|
struct inet6_dev *in6_dev;
|
|
struct inet6_ifaddr *ifa;
|
|
struct qeth_ipaddr *addr;
|
|
struct net_device *netdev;
|
|
|
|
QETH_CARD_TEXT(card, 4, "frvaddr6");
|
|
|
|
netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
|
|
if (!netdev)
|
|
return;
|
|
in6_dev = in6_dev_get(netdev);
|
|
if (!in6_dev)
|
|
return;
|
|
list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
|
|
addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
|
|
if (addr) {
|
|
memcpy(&addr->u.a6.addr, &ifa->addr,
|
|
sizeof(struct in6_addr));
|
|
addr->u.a6.pfxlen = ifa->prefix_len;
|
|
addr->type = QETH_IP_TYPE_NORMAL;
|
|
if (!qeth_l3_delete_ip(card, addr))
|
|
kfree(addr);
|
|
}
|
|
}
|
|
in6_dev_put(in6_dev);
|
|
#endif /* CONFIG_QETH_IPV6 */
|
|
}
|
|
|
|
static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
|
|
unsigned short vid)
|
|
{
|
|
rcu_read_lock();
|
|
qeth_l3_free_vlan_addresses4(card, vid);
|
|
qeth_l3_free_vlan_addresses6(card, vid);
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
|
|
__be16 proto, u16 vid)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
set_bit(vid, card->active_vlans);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
|
|
__be16 proto, u16 vid)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
unsigned long flags;
|
|
|
|
QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
|
|
if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
|
|
QETH_CARD_TEXT(card, 3, "kidREC");
|
|
return 0;
|
|
}
|
|
spin_lock_irqsave(&card->vlanlock, flags);
|
|
/* unregister IP addresses of vlan device */
|
|
qeth_l3_free_vlan_addresses(card, vid);
|
|
clear_bit(vid, card->active_vlans);
|
|
spin_unlock_irqrestore(&card->vlanlock, flags);
|
|
qeth_l3_set_multicast_list(card->dev);
|
|
return 0;
|
|
}
|
|
|
|
static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
|
|
struct sk_buff *skb, struct qeth_hdr *hdr,
|
|
unsigned short *vlan_id)
|
|
{
|
|
__be16 prot;
|
|
struct iphdr *ip_hdr;
|
|
unsigned char tg_addr[MAX_ADDR_LEN];
|
|
int is_vlan = 0;
|
|
|
|
if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
|
|
prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
|
|
ETH_P_IP);
|
|
switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
|
|
case QETH_CAST_MULTICAST:
|
|
switch (prot) {
|
|
#ifdef CONFIG_QETH_IPV6
|
|
case __constant_htons(ETH_P_IPV6):
|
|
ndisc_mc_map((struct in6_addr *)
|
|
skb->data + 24,
|
|
tg_addr, card->dev, 0);
|
|
break;
|
|
#endif
|
|
case __constant_htons(ETH_P_IP):
|
|
ip_hdr = (struct iphdr *)skb->data;
|
|
ip_eth_mc_map(ip_hdr->daddr, tg_addr);
|
|
break;
|
|
default:
|
|
memcpy(tg_addr, card->dev->broadcast,
|
|
card->dev->addr_len);
|
|
}
|
|
card->stats.multicast++;
|
|
skb->pkt_type = PACKET_MULTICAST;
|
|
break;
|
|
case QETH_CAST_BROADCAST:
|
|
memcpy(tg_addr, card->dev->broadcast,
|
|
card->dev->addr_len);
|
|
card->stats.multicast++;
|
|
skb->pkt_type = PACKET_BROADCAST;
|
|
break;
|
|
case QETH_CAST_UNICAST:
|
|
case QETH_CAST_ANYCAST:
|
|
case QETH_CAST_NOCAST:
|
|
default:
|
|
if (card->options.sniffer)
|
|
skb->pkt_type = PACKET_OTHERHOST;
|
|
else
|
|
skb->pkt_type = PACKET_HOST;
|
|
memcpy(tg_addr, card->dev->dev_addr,
|
|
card->dev->addr_len);
|
|
}
|
|
if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
|
|
card->dev->header_ops->create(skb, card->dev, prot,
|
|
tg_addr, &hdr->hdr.l3.dest_addr[2],
|
|
card->dev->addr_len);
|
|
else
|
|
card->dev->header_ops->create(skb, card->dev, prot,
|
|
tg_addr, "FAKELL", card->dev->addr_len);
|
|
}
|
|
|
|
skb->protocol = eth_type_trans(skb, card->dev);
|
|
|
|
if (hdr->hdr.l3.ext_flags &
|
|
(QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
|
|
*vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
|
|
hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
|
|
is_vlan = 1;
|
|
}
|
|
|
|
if (card->dev->features & NETIF_F_RXCSUM) {
|
|
if ((hdr->hdr.l3.ext_flags &
|
|
(QETH_HDR_EXT_CSUM_HDR_REQ |
|
|
QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
|
|
(QETH_HDR_EXT_CSUM_HDR_REQ |
|
|
QETH_HDR_EXT_CSUM_TRANSP_REQ))
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
else
|
|
skb->ip_summed = CHECKSUM_NONE;
|
|
} else
|
|
skb->ip_summed = CHECKSUM_NONE;
|
|
|
|
return is_vlan;
|
|
}
|
|
|
|
static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
|
|
int budget, int *done)
|
|
{
|
|
int work_done = 0;
|
|
struct sk_buff *skb;
|
|
struct qeth_hdr *hdr;
|
|
__u16 vlan_tag = 0;
|
|
int is_vlan;
|
|
unsigned int len;
|
|
__u16 magic;
|
|
|
|
*done = 0;
|
|
WARN_ON_ONCE(!budget);
|
|
while (budget) {
|
|
skb = qeth_core_get_next_skb(card,
|
|
&card->qdio.in_q->bufs[card->rx.b_index],
|
|
&card->rx.b_element, &card->rx.e_offset, &hdr);
|
|
if (!skb) {
|
|
*done = 1;
|
|
break;
|
|
}
|
|
skb->dev = card->dev;
|
|
switch (hdr->hdr.l3.id) {
|
|
case QETH_HEADER_TYPE_LAYER3:
|
|
magic = *(__u16 *)skb->data;
|
|
if ((card->info.type == QETH_CARD_TYPE_IQD) &&
|
|
(magic == ETH_P_AF_IUCV)) {
|
|
skb->protocol = ETH_P_AF_IUCV;
|
|
skb->pkt_type = PACKET_HOST;
|
|
skb->mac_header = NET_SKB_PAD;
|
|
skb->dev = card->dev;
|
|
len = skb->len;
|
|
card->dev->header_ops->create(skb, card->dev, 0,
|
|
card->dev->dev_addr, "FAKELL",
|
|
card->dev->addr_len);
|
|
netif_receive_skb(skb);
|
|
} else {
|
|
is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
|
|
&vlan_tag);
|
|
len = skb->len;
|
|
if (is_vlan && !card->options.sniffer)
|
|
__vlan_hwaccel_put_tag(skb,
|
|
htons(ETH_P_8021Q), vlan_tag);
|
|
napi_gro_receive(&card->napi, skb);
|
|
}
|
|
break;
|
|
case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
|
|
skb->pkt_type = PACKET_HOST;
|
|
skb->protocol = eth_type_trans(skb, skb->dev);
|
|
len = skb->len;
|
|
netif_receive_skb(skb);
|
|
break;
|
|
default:
|
|
dev_kfree_skb_any(skb);
|
|
QETH_CARD_TEXT(card, 3, "inbunkno");
|
|
QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
|
|
continue;
|
|
}
|
|
work_done++;
|
|
budget--;
|
|
card->stats.rx_packets++;
|
|
card->stats.rx_bytes += len;
|
|
}
|
|
return work_done;
|
|
}
|
|
|
|
static int qeth_l3_poll(struct napi_struct *napi, int budget)
|
|
{
|
|
struct qeth_card *card = container_of(napi, struct qeth_card, napi);
|
|
int work_done = 0;
|
|
struct qeth_qdio_buffer *buffer;
|
|
int done;
|
|
int new_budget = budget;
|
|
|
|
if (card->options.performance_stats) {
|
|
card->perf_stats.inbound_cnt++;
|
|
card->perf_stats.inbound_start_time = qeth_get_micros();
|
|
}
|
|
|
|
while (1) {
|
|
if (!card->rx.b_count) {
|
|
card->rx.qdio_err = 0;
|
|
card->rx.b_count = qdio_get_next_buffers(
|
|
card->data.ccwdev, 0, &card->rx.b_index,
|
|
&card->rx.qdio_err);
|
|
if (card->rx.b_count <= 0) {
|
|
card->rx.b_count = 0;
|
|
break;
|
|
}
|
|
card->rx.b_element =
|
|
&card->qdio.in_q->bufs[card->rx.b_index]
|
|
.buffer->element[0];
|
|
card->rx.e_offset = 0;
|
|
}
|
|
|
|
while (card->rx.b_count) {
|
|
buffer = &card->qdio.in_q->bufs[card->rx.b_index];
|
|
if (!(card->rx.qdio_err &&
|
|
qeth_check_qdio_errors(card, buffer->buffer,
|
|
card->rx.qdio_err, "qinerr")))
|
|
work_done += qeth_l3_process_inbound_buffer(
|
|
card, new_budget, &done);
|
|
else
|
|
done = 1;
|
|
|
|
if (done) {
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.bufs_rec++;
|
|
qeth_put_buffer_pool_entry(card,
|
|
buffer->pool_entry);
|
|
qeth_queue_input_buffer(card, card->rx.b_index);
|
|
card->rx.b_count--;
|
|
if (card->rx.b_count) {
|
|
card->rx.b_index =
|
|
(card->rx.b_index + 1) %
|
|
QDIO_MAX_BUFFERS_PER_Q;
|
|
card->rx.b_element =
|
|
&card->qdio.in_q
|
|
->bufs[card->rx.b_index]
|
|
.buffer->element[0];
|
|
card->rx.e_offset = 0;
|
|
}
|
|
}
|
|
|
|
if (work_done >= budget)
|
|
goto out;
|
|
else
|
|
new_budget = budget - work_done;
|
|
}
|
|
}
|
|
|
|
napi_complete(napi);
|
|
if (qdio_start_irq(card->data.ccwdev, 0))
|
|
napi_schedule(&card->napi);
|
|
out:
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.inbound_time += qeth_get_micros() -
|
|
card->perf_stats.inbound_start_time;
|
|
return work_done;
|
|
}
|
|
|
|
static int qeth_l3_verify_vlan_dev(struct net_device *dev,
|
|
struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
u16 vid;
|
|
|
|
for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
|
|
struct net_device *netdev;
|
|
|
|
rcu_read_lock();
|
|
netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
|
|
vid);
|
|
rcu_read_unlock();
|
|
if (netdev == dev) {
|
|
rc = QETH_VLAN_CARD;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
|
|
return 0;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_verify_dev(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card;
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
|
|
list_for_each_entry(card, &qeth_core_card_list.list, list) {
|
|
if (card->dev == dev) {
|
|
rc = QETH_REAL_CARD;
|
|
break;
|
|
}
|
|
rc = qeth_l3_verify_vlan_dev(dev, card);
|
|
if (rc)
|
|
break;
|
|
}
|
|
read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = NULL;
|
|
int rc;
|
|
|
|
rc = qeth_l3_verify_dev(dev);
|
|
if (rc == QETH_REAL_CARD)
|
|
card = dev->ml_priv;
|
|
else if (rc == QETH_VLAN_CARD)
|
|
card = vlan_dev_real_dev(dev)->ml_priv;
|
|
if (card && card->options.layer2)
|
|
card = NULL;
|
|
if (card)
|
|
QETH_CARD_TEXT_(card, 4, "%d", rc);
|
|
return card ;
|
|
}
|
|
|
|
static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "stopcard");
|
|
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
|
|
|
|
qeth_set_allowed_threads(card, 0, 1);
|
|
if (card->options.sniffer &&
|
|
(card->info.promisc_mode == SET_PROMISC_MODE_ON))
|
|
qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
|
|
if (card->read.state == CH_STATE_UP &&
|
|
card->write.state == CH_STATE_UP &&
|
|
(card->state == CARD_STATE_UP)) {
|
|
if (recovery_mode)
|
|
qeth_l3_stop(card->dev);
|
|
else {
|
|
rtnl_lock();
|
|
dev_close(card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
card->state = CARD_STATE_SOFTSETUP;
|
|
}
|
|
if (card->state == CARD_STATE_SOFTSETUP) {
|
|
qeth_l3_clear_ip_list(card, 1);
|
|
qeth_clear_ipacmd_list(card);
|
|
card->state = CARD_STATE_HARDSETUP;
|
|
}
|
|
if (card->state == CARD_STATE_HARDSETUP) {
|
|
qeth_qdio_clear_card(card, 0);
|
|
qeth_clear_qdio_buffers(card);
|
|
qeth_clear_working_pool_list(card);
|
|
card->state = CARD_STATE_DOWN;
|
|
}
|
|
if (card->state == CARD_STATE_DOWN) {
|
|
qeth_clear_cmd_buffers(&card->read);
|
|
qeth_clear_cmd_buffers(&card->write);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* test for and Switch promiscuous mode (on or off)
|
|
* either for guestlan or HiperSocket Sniffer
|
|
*/
|
|
static void
|
|
qeth_l3_handle_promisc_mode(struct qeth_card *card)
|
|
{
|
|
struct net_device *dev = card->dev;
|
|
|
|
if (((dev->flags & IFF_PROMISC) &&
|
|
(card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
|
|
(!(dev->flags & IFF_PROMISC) &&
|
|
(card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
|
|
return;
|
|
|
|
if (card->info.guestlan) { /* Guestlan trace */
|
|
if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
|
|
qeth_setadp_promisc_mode(card);
|
|
} else if (card->options.sniffer && /* HiperSockets trace */
|
|
qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
|
|
if (dev->flags & IFF_PROMISC) {
|
|
QETH_CARD_TEXT(card, 3, "+promisc");
|
|
qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
|
|
} else {
|
|
QETH_CARD_TEXT(card, 3, "-promisc");
|
|
qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void qeth_l3_set_multicast_list(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
QETH_CARD_TEXT(card, 3, "setmulti");
|
|
if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
|
|
(card->state != CARD_STATE_UP))
|
|
return;
|
|
if (!card->options.sniffer) {
|
|
qeth_l3_delete_mc_addresses(card);
|
|
qeth_l3_add_multicast_ipv4(card);
|
|
#ifdef CONFIG_QETH_IPV6
|
|
qeth_l3_add_multicast_ipv6(card);
|
|
#endif
|
|
qeth_l3_set_ip_addr_list(card);
|
|
if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
|
|
return;
|
|
}
|
|
qeth_l3_handle_promisc_mode(card);
|
|
}
|
|
|
|
static const char *qeth_l3_arp_get_error_cause(int *rc)
|
|
{
|
|
switch (*rc) {
|
|
case QETH_IPA_ARP_RC_FAILED:
|
|
*rc = -EIO;
|
|
return "operation failed";
|
|
case QETH_IPA_ARP_RC_NOTSUPP:
|
|
*rc = -EOPNOTSUPP;
|
|
return "operation not supported";
|
|
case QETH_IPA_ARP_RC_OUT_OF_RANGE:
|
|
*rc = -EINVAL;
|
|
return "argument out of range";
|
|
case QETH_IPA_ARP_RC_Q_NOTSUPP:
|
|
*rc = -EOPNOTSUPP;
|
|
return "query operation not supported";
|
|
case QETH_IPA_ARP_RC_Q_NO_DATA:
|
|
*rc = -ENOENT;
|
|
return "no query data available";
|
|
default:
|
|
return "unknown error";
|
|
}
|
|
}
|
|
|
|
static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
|
|
{
|
|
int tmp;
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "arpstnoe");
|
|
|
|
/*
|
|
* currently GuestLAN only supports the ARP assist function
|
|
* IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
|
|
* thus we say EOPNOTSUPP for this ARP function
|
|
*/
|
|
if (card->info.guestlan)
|
|
return -EOPNOTSUPP;
|
|
if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
|
|
no_entries);
|
|
if (rc) {
|
|
tmp = rc;
|
|
QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
|
|
"%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
|
|
qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static __u32 get_arp_entry_size(struct qeth_card *card,
|
|
struct qeth_arp_query_data *qdata,
|
|
struct qeth_arp_entrytype *type, __u8 strip_entries)
|
|
{
|
|
__u32 rc;
|
|
__u8 is_hsi;
|
|
|
|
is_hsi = qdata->reply_bits == 5;
|
|
if (type->ip == QETHARP_IP_ADDR_V4) {
|
|
QETH_CARD_TEXT(card, 4, "arpev4");
|
|
if (strip_entries) {
|
|
rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
|
|
sizeof(struct qeth_arp_qi_entry7_short);
|
|
} else {
|
|
rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
|
|
sizeof(struct qeth_arp_qi_entry7);
|
|
}
|
|
} else if (type->ip == QETHARP_IP_ADDR_V6) {
|
|
QETH_CARD_TEXT(card, 4, "arpev6");
|
|
if (strip_entries) {
|
|
rc = is_hsi ?
|
|
sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
|
|
sizeof(struct qeth_arp_qi_entry7_short_ipv6);
|
|
} else {
|
|
rc = is_hsi ?
|
|
sizeof(struct qeth_arp_qi_entry5_ipv6) :
|
|
sizeof(struct qeth_arp_qi_entry7_ipv6);
|
|
}
|
|
} else {
|
|
QETH_CARD_TEXT(card, 4, "arpinv");
|
|
rc = 0;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
|
|
{
|
|
return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
|
|
(type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
|
|
}
|
|
|
|
static int qeth_l3_arp_query_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_arp_query_data *qdata;
|
|
struct qeth_arp_query_info *qinfo;
|
|
int i;
|
|
int e;
|
|
int entrybytes_done;
|
|
int stripped_bytes;
|
|
__u8 do_strip_entries;
|
|
|
|
QETH_CARD_TEXT(card, 3, "arpquecb");
|
|
|
|
qinfo = (struct qeth_arp_query_info *) reply->param;
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
|
|
if (cmd->hdr.return_code) {
|
|
QETH_CARD_TEXT(card, 4, "arpcberr");
|
|
QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
|
|
return 0;
|
|
}
|
|
if (cmd->data.setassparms.hdr.return_code) {
|
|
cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
|
|
QETH_CARD_TEXT(card, 4, "setaperr");
|
|
QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
|
|
return 0;
|
|
}
|
|
qdata = &cmd->data.setassparms.data.query_arp;
|
|
QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
|
|
|
|
do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
|
|
stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
|
|
entrybytes_done = 0;
|
|
for (e = 0; e < qdata->no_entries; ++e) {
|
|
char *cur_entry;
|
|
__u32 esize;
|
|
struct qeth_arp_entrytype *etype;
|
|
|
|
cur_entry = &qdata->data + entrybytes_done;
|
|
etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
|
|
if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
|
|
QETH_CARD_TEXT(card, 4, "pmis");
|
|
QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
|
|
break;
|
|
}
|
|
esize = get_arp_entry_size(card, qdata, etype,
|
|
do_strip_entries);
|
|
QETH_CARD_TEXT_(card, 5, "esz%i", esize);
|
|
if (!esize)
|
|
break;
|
|
|
|
if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
|
|
QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
|
|
cmd->hdr.return_code = IPA_RC_ENOMEM;
|
|
goto out_error;
|
|
}
|
|
|
|
memcpy(qinfo->udata + qinfo->udata_offset,
|
|
&qdata->data + entrybytes_done + stripped_bytes,
|
|
esize);
|
|
entrybytes_done += esize + stripped_bytes;
|
|
qinfo->udata_offset += esize;
|
|
++qinfo->no_entries;
|
|
}
|
|
/* check if all replies received ... */
|
|
if (cmd->data.setassparms.hdr.seq_no <
|
|
cmd->data.setassparms.hdr.number_of_replies)
|
|
return 1;
|
|
QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
|
|
memcpy(qinfo->udata, &qinfo->no_entries, 4);
|
|
/* keep STRIP_ENTRIES flag so the user program can distinguish
|
|
* stripped entries from normal ones */
|
|
if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
|
|
qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
|
|
memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
|
|
QETH_CARD_TEXT_(card, 4, "rc%i", 0);
|
|
return 0;
|
|
out_error:
|
|
i = 0;
|
|
memcpy(qinfo->udata, &i, 4);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
|
|
struct qeth_cmd_buffer *iob, int len,
|
|
int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
|
|
unsigned long),
|
|
void *reply_param)
|
|
{
|
|
QETH_CARD_TEXT(card, 4, "sendarp");
|
|
|
|
memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
|
|
memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
|
|
&card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
|
|
return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
|
|
reply_cb, reply_param);
|
|
}
|
|
|
|
static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
|
|
enum qeth_prot_versions prot,
|
|
struct qeth_arp_query_info *qinfo)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
int tmp;
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
|
|
|
|
iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_QUERY_INFO,
|
|
sizeof(struct qeth_arp_query_data) - sizeof(char),
|
|
prot);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
|
|
cmd->data.setassparms.data.query_arp.reply_bits = 0;
|
|
cmd->data.setassparms.data.query_arp.no_entries = 0;
|
|
rc = qeth_l3_send_ipa_arp_cmd(card, iob,
|
|
QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
|
|
qeth_l3_arp_query_cb, (void *)qinfo);
|
|
if (rc) {
|
|
tmp = rc;
|
|
QETH_DBF_MESSAGE(2,
|
|
"Error while querying ARP cache on %s: %s "
|
|
"(0x%x/%d)\n", QETH_CARD_IFNAME(card),
|
|
qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
|
|
{
|
|
struct qeth_arp_query_info qinfo = {0, };
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "arpquery");
|
|
|
|
if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
|
|
IPA_ARP_PROCESSING)) {
|
|
QETH_CARD_TEXT(card, 3, "arpqnsup");
|
|
rc = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
/* get size of userspace buffer and mask_bits -> 6 bytes */
|
|
if (copy_from_user(&qinfo, udata, 6)) {
|
|
rc = -EFAULT;
|
|
goto out;
|
|
}
|
|
qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
|
|
if (!qinfo.udata) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
|
|
rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
|
|
if (rc) {
|
|
if (copy_to_user(udata, qinfo.udata, 4))
|
|
rc = -EFAULT;
|
|
goto free_and_out;
|
|
} else {
|
|
#ifdef CONFIG_QETH_IPV6
|
|
if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
|
|
/* fails in case of GuestLAN QDIO mode */
|
|
qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
|
|
&qinfo);
|
|
}
|
|
#endif
|
|
if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
|
|
QETH_CARD_TEXT(card, 4, "qactf");
|
|
rc = -EFAULT;
|
|
goto free_and_out;
|
|
}
|
|
QETH_CARD_TEXT_(card, 4, "qacts");
|
|
}
|
|
free_and_out:
|
|
kfree(qinfo.udata);
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_arp_add_entry(struct qeth_card *card,
|
|
struct qeth_arp_cache_entry *entry)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
char buf[16];
|
|
int tmp;
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "arpadent");
|
|
|
|
/*
|
|
* currently GuestLAN only supports the ARP assist function
|
|
* IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
|
|
* thus we say EOPNOTSUPP for this ARP function
|
|
*/
|
|
if (card->info.guestlan)
|
|
return -EOPNOTSUPP;
|
|
if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_ADD_ENTRY,
|
|
sizeof(struct qeth_arp_cache_entry),
|
|
QETH_PROT_IPV4);
|
|
rc = qeth_l3_send_setassparms(card, iob,
|
|
sizeof(struct qeth_arp_cache_entry),
|
|
(unsigned long) entry,
|
|
qeth_l3_default_setassparms_cb, NULL);
|
|
if (rc) {
|
|
tmp = rc;
|
|
qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
|
|
QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
|
|
"on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
|
|
qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_arp_remove_entry(struct qeth_card *card,
|
|
struct qeth_arp_cache_entry *entry)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
char buf[16] = {0, };
|
|
int tmp;
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "arprment");
|
|
|
|
/*
|
|
* currently GuestLAN only supports the ARP assist function
|
|
* IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
|
|
* thus we say EOPNOTSUPP for this ARP function
|
|
*/
|
|
if (card->info.guestlan)
|
|
return -EOPNOTSUPP;
|
|
if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
memcpy(buf, entry, 12);
|
|
iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_REMOVE_ENTRY,
|
|
12,
|
|
QETH_PROT_IPV4);
|
|
rc = qeth_l3_send_setassparms(card, iob,
|
|
12, (unsigned long)buf,
|
|
qeth_l3_default_setassparms_cb, NULL);
|
|
if (rc) {
|
|
tmp = rc;
|
|
memset(buf, 0, 16);
|
|
qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
|
|
QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
|
|
" on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
|
|
qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_arp_flush_cache(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
int tmp;
|
|
|
|
QETH_CARD_TEXT(card, 3, "arpflush");
|
|
|
|
/*
|
|
* currently GuestLAN only supports the ARP assist function
|
|
* IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
|
|
* thus we say EOPNOTSUPP for this ARP function
|
|
*/
|
|
if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
|
|
return -EOPNOTSUPP;
|
|
if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
|
|
if (rc) {
|
|
tmp = rc;
|
|
QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
|
|
"(0x%x/%d)\n", QETH_CARD_IFNAME(card),
|
|
qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
struct qeth_arp_cache_entry arp_entry;
|
|
struct mii_ioctl_data *mii_data;
|
|
int rc = 0;
|
|
|
|
if (!card)
|
|
return -ENODEV;
|
|
|
|
if ((card->state != CARD_STATE_UP) &&
|
|
(card->state != CARD_STATE_SOFTSETUP))
|
|
return -ENODEV;
|
|
|
|
switch (cmd) {
|
|
case SIOC_QETH_ARP_SET_NO_ENTRIES:
|
|
if (!capable(CAP_NET_ADMIN)) {
|
|
rc = -EPERM;
|
|
break;
|
|
}
|
|
rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
|
|
break;
|
|
case SIOC_QETH_ARP_QUERY_INFO:
|
|
if (!capable(CAP_NET_ADMIN)) {
|
|
rc = -EPERM;
|
|
break;
|
|
}
|
|
rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
|
|
break;
|
|
case SIOC_QETH_ARP_ADD_ENTRY:
|
|
if (!capable(CAP_NET_ADMIN)) {
|
|
rc = -EPERM;
|
|
break;
|
|
}
|
|
if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
|
|
sizeof(struct qeth_arp_cache_entry)))
|
|
rc = -EFAULT;
|
|
else
|
|
rc = qeth_l3_arp_add_entry(card, &arp_entry);
|
|
break;
|
|
case SIOC_QETH_ARP_REMOVE_ENTRY:
|
|
if (!capable(CAP_NET_ADMIN)) {
|
|
rc = -EPERM;
|
|
break;
|
|
}
|
|
if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
|
|
sizeof(struct qeth_arp_cache_entry)))
|
|
rc = -EFAULT;
|
|
else
|
|
rc = qeth_l3_arp_remove_entry(card, &arp_entry);
|
|
break;
|
|
case SIOC_QETH_ARP_FLUSH_CACHE:
|
|
if (!capable(CAP_NET_ADMIN)) {
|
|
rc = -EPERM;
|
|
break;
|
|
}
|
|
rc = qeth_l3_arp_flush_cache(card);
|
|
break;
|
|
case SIOC_QETH_ADP_SET_SNMP_CONTROL:
|
|
rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
|
|
break;
|
|
case SIOC_QETH_GET_CARD_TYPE:
|
|
if ((card->info.type == QETH_CARD_TYPE_OSD ||
|
|
card->info.type == QETH_CARD_TYPE_OSX) &&
|
|
!card->info.guestlan)
|
|
return 1;
|
|
return 0;
|
|
break;
|
|
case SIOCGMIIPHY:
|
|
mii_data = if_mii(rq);
|
|
mii_data->phy_id = 0;
|
|
break;
|
|
case SIOCGMIIREG:
|
|
mii_data = if_mii(rq);
|
|
if (mii_data->phy_id != 0)
|
|
rc = -EINVAL;
|
|
else
|
|
mii_data->val_out = qeth_mdio_read(dev,
|
|
mii_data->phy_id,
|
|
mii_data->reg_num);
|
|
break;
|
|
case SIOC_QETH_QUERY_OAT:
|
|
rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
|
|
break;
|
|
default:
|
|
rc = -EOPNOTSUPP;
|
|
}
|
|
if (rc)
|
|
QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
|
|
return rc;
|
|
}
|
|
|
|
int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
|
|
{
|
|
int cast_type = RTN_UNSPEC;
|
|
struct neighbour *n = NULL;
|
|
struct dst_entry *dst;
|
|
|
|
rcu_read_lock();
|
|
dst = skb_dst(skb);
|
|
if (dst)
|
|
n = dst_neigh_lookup_skb(dst, skb);
|
|
if (n) {
|
|
cast_type = n->type;
|
|
rcu_read_unlock();
|
|
neigh_release(n);
|
|
if ((cast_type == RTN_BROADCAST) ||
|
|
(cast_type == RTN_MULTICAST) ||
|
|
(cast_type == RTN_ANYCAST))
|
|
return cast_type;
|
|
else
|
|
return RTN_UNSPEC;
|
|
}
|
|
rcu_read_unlock();
|
|
|
|
/* try something else */
|
|
if (skb->protocol == ETH_P_IPV6)
|
|
return (skb_network_header(skb)[24] == 0xff) ?
|
|
RTN_MULTICAST : 0;
|
|
else if (skb->protocol == ETH_P_IP)
|
|
return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
|
|
RTN_MULTICAST : 0;
|
|
/* ... */
|
|
if (!memcmp(skb->data, skb->dev->broadcast, 6))
|
|
return RTN_BROADCAST;
|
|
else {
|
|
u16 hdr_mac;
|
|
|
|
hdr_mac = *((u16 *)skb->data);
|
|
/* tr multicast? */
|
|
switch (card->info.link_type) {
|
|
case QETH_LINK_TYPE_HSTR:
|
|
case QETH_LINK_TYPE_LANE_TR:
|
|
if ((hdr_mac == QETH_TR_MAC_NC) ||
|
|
(hdr_mac == QETH_TR_MAC_C))
|
|
return RTN_MULTICAST;
|
|
break;
|
|
/* eth or so multicast? */
|
|
default:
|
|
if ((hdr_mac == QETH_ETH_MAC_V4) ||
|
|
(hdr_mac == QETH_ETH_MAC_V6))
|
|
return RTN_MULTICAST;
|
|
}
|
|
}
|
|
return cast_type;
|
|
}
|
|
|
|
static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
|
|
struct qeth_hdr *hdr, struct sk_buff *skb)
|
|
{
|
|
char daddr[16];
|
|
struct af_iucv_trans_hdr *iucv_hdr;
|
|
|
|
skb_pull(skb, 14);
|
|
card->dev->header_ops->create(skb, card->dev, 0,
|
|
card->dev->dev_addr, card->dev->dev_addr,
|
|
card->dev->addr_len);
|
|
skb_pull(skb, 14);
|
|
iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
|
|
memset(hdr, 0, sizeof(struct qeth_hdr));
|
|
hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
|
|
hdr->hdr.l3.ext_flags = 0;
|
|
hdr->hdr.l3.length = skb->len;
|
|
hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
|
|
memset(daddr, 0, sizeof(daddr));
|
|
daddr[0] = 0xfe;
|
|
daddr[1] = 0x80;
|
|
memcpy(&daddr[8], iucv_hdr->destUserID, 8);
|
|
memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
|
|
}
|
|
|
|
static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
|
|
struct sk_buff *skb, int ipv, int cast_type)
|
|
{
|
|
struct dst_entry *dst;
|
|
|
|
memset(hdr, 0, sizeof(struct qeth_hdr));
|
|
hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
|
|
hdr->hdr.l3.ext_flags = 0;
|
|
|
|
/*
|
|
* before we're going to overwrite this location with next hop ip.
|
|
* v6 uses passthrough, v4 sets the tag in the QDIO header.
|
|
*/
|
|
if (vlan_tx_tag_present(skb)) {
|
|
if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
|
|
hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
|
|
else
|
|
hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
|
|
hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
|
|
}
|
|
|
|
hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
|
|
|
|
rcu_read_lock();
|
|
dst = skb_dst(skb);
|
|
if (ipv == 4) {
|
|
struct rtable *rt = (struct rtable *) dst;
|
|
__be32 *pkey = &ip_hdr(skb)->daddr;
|
|
|
|
if (rt->rt_gateway)
|
|
pkey = &rt->rt_gateway;
|
|
|
|
/* IPv4 */
|
|
hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
|
|
memset(hdr->hdr.l3.dest_addr, 0, 12);
|
|
*((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
|
|
} else if (ipv == 6) {
|
|
struct rt6_info *rt = (struct rt6_info *) dst;
|
|
struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
|
|
|
|
if (!ipv6_addr_any(&rt->rt6i_gateway))
|
|
pkey = &rt->rt6i_gateway;
|
|
|
|
/* IPv6 */
|
|
hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
|
|
if (card->info.type == QETH_CARD_TYPE_IQD)
|
|
hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
|
|
memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
|
|
} else {
|
|
if (!memcmp(skb->data + sizeof(struct qeth_hdr),
|
|
skb->dev->broadcast, 6)) {
|
|
/* broadcast? */
|
|
hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
|
|
QETH_HDR_PASSTHRU;
|
|
} else {
|
|
hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
|
|
QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
|
|
QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
|
|
}
|
|
}
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static inline void qeth_l3_hdr_csum(struct qeth_card *card,
|
|
struct qeth_hdr *hdr, struct sk_buff *skb)
|
|
{
|
|
struct iphdr *iph = ip_hdr(skb);
|
|
|
|
/* tcph->check contains already the pseudo hdr checksum
|
|
* so just set the header flags
|
|
*/
|
|
if (iph->protocol == IPPROTO_UDP)
|
|
hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
|
|
hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
|
|
QETH_HDR_EXT_CSUM_HDR_REQ;
|
|
iph->check = 0;
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.tx_csum++;
|
|
}
|
|
|
|
static void qeth_tso_fill_header(struct qeth_card *card,
|
|
struct qeth_hdr *qhdr, struct sk_buff *skb)
|
|
{
|
|
struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
|
|
struct tcphdr *tcph = tcp_hdr(skb);
|
|
struct iphdr *iph = ip_hdr(skb);
|
|
struct ipv6hdr *ip6h = ipv6_hdr(skb);
|
|
|
|
/*fix header to TSO values ...*/
|
|
hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
|
|
hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
|
|
/*set values which are fix for the first approach ...*/
|
|
hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
|
|
hdr->ext.imb_hdr_no = 1;
|
|
hdr->ext.hdr_type = 1;
|
|
hdr->ext.hdr_version = 1;
|
|
hdr->ext.hdr_len = 28;
|
|
/*insert non-fix values */
|
|
hdr->ext.mss = skb_shinfo(skb)->gso_size;
|
|
hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
|
|
hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
|
|
sizeof(struct qeth_hdr_tso));
|
|
tcph->check = 0;
|
|
if (skb->protocol == ETH_P_IPV6) {
|
|
ip6h->payload_len = 0;
|
|
tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
|
|
0, IPPROTO_TCP, 0);
|
|
} else {
|
|
/*OSA want us to set these values ...*/
|
|
tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
|
|
0, IPPROTO_TCP, 0);
|
|
iph->tot_len = 0;
|
|
iph->check = 0;
|
|
}
|
|
}
|
|
|
|
static inline int qeth_l3_tso_elements(struct sk_buff *skb)
|
|
{
|
|
unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
|
|
tcp_hdr(skb)->doff * 4;
|
|
int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
|
|
int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
|
|
|
|
elements += qeth_get_elements_for_frags(skb);
|
|
|
|
return elements;
|
|
}
|
|
|
|
static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
int rc;
|
|
u16 *tag;
|
|
struct qeth_hdr *hdr = NULL;
|
|
int elements_needed = 0;
|
|
int elems;
|
|
struct qeth_card *card = dev->ml_priv;
|
|
struct sk_buff *new_skb = NULL;
|
|
int ipv = qeth_get_ip_version(skb);
|
|
int cast_type = qeth_l3_get_cast_type(card, skb);
|
|
struct qeth_qdio_out_q *queue =
|
|
card->qdio.out_qs[card->qdio.do_prio_queueing
|
|
|| (cast_type && card->info.is_multicast_different) ?
|
|
qeth_get_priority_queue(card, skb, ipv, cast_type) :
|
|
card->qdio.default_out_queue];
|
|
int tx_bytes = skb->len;
|
|
bool large_send;
|
|
int data_offset = -1;
|
|
int nr_frags;
|
|
|
|
if (((card->info.type == QETH_CARD_TYPE_IQD) &&
|
|
(((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
|
|
((card->options.cq == QETH_CQ_ENABLED) &&
|
|
(skb->protocol != ETH_P_AF_IUCV)))) ||
|
|
card->options.sniffer)
|
|
goto tx_drop;
|
|
|
|
if ((card->state != CARD_STATE_UP) || !card->lan_online) {
|
|
card->stats.tx_carrier_errors++;
|
|
goto tx_drop;
|
|
}
|
|
|
|
if ((cast_type == RTN_BROADCAST) &&
|
|
(card->info.broadcast_capable == 0))
|
|
goto tx_drop;
|
|
|
|
if (card->options.performance_stats) {
|
|
card->perf_stats.outbound_cnt++;
|
|
card->perf_stats.outbound_start_time = qeth_get_micros();
|
|
}
|
|
|
|
large_send = skb_is_gso(skb);
|
|
|
|
if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
|
|
(skb_shinfo(skb)->nr_frags == 0)) {
|
|
new_skb = skb;
|
|
if (new_skb->protocol == ETH_P_AF_IUCV)
|
|
data_offset = 0;
|
|
else
|
|
data_offset = ETH_HLEN;
|
|
hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
|
|
if (!hdr)
|
|
goto tx_drop;
|
|
elements_needed++;
|
|
} else {
|
|
/* create a clone with writeable headroom */
|
|
new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
|
|
+ VLAN_HLEN);
|
|
if (!new_skb)
|
|
goto tx_drop;
|
|
}
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_IQD) {
|
|
if (data_offset < 0)
|
|
skb_pull(new_skb, ETH_HLEN);
|
|
} else {
|
|
if (ipv == 4) {
|
|
skb_pull(new_skb, ETH_HLEN);
|
|
}
|
|
|
|
if (ipv != 4 && vlan_tx_tag_present(new_skb)) {
|
|
skb_push(new_skb, VLAN_HLEN);
|
|
skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
|
|
skb_copy_to_linear_data_offset(new_skb, 4,
|
|
new_skb->data + 8, 4);
|
|
skb_copy_to_linear_data_offset(new_skb, 8,
|
|
new_skb->data + 12, 4);
|
|
tag = (u16 *)(new_skb->data + 12);
|
|
*tag = __constant_htons(ETH_P_8021Q);
|
|
*(tag + 1) = htons(vlan_tx_tag_get(new_skb));
|
|
}
|
|
}
|
|
|
|
netif_stop_queue(dev);
|
|
|
|
/* fix hardware limitation: as long as we do not have sbal
|
|
* chaining we can not send long frag lists
|
|
*/
|
|
if (large_send) {
|
|
if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
|
|
if (skb_linearize(new_skb))
|
|
goto tx_drop;
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.tx_lin++;
|
|
}
|
|
}
|
|
|
|
if (large_send && (cast_type == RTN_UNSPEC)) {
|
|
hdr = (struct qeth_hdr *)skb_push(new_skb,
|
|
sizeof(struct qeth_hdr_tso));
|
|
memset(hdr, 0, sizeof(struct qeth_hdr_tso));
|
|
qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
|
|
qeth_tso_fill_header(card, hdr, new_skb);
|
|
elements_needed++;
|
|
} else {
|
|
if (data_offset < 0) {
|
|
hdr = (struct qeth_hdr *)skb_push(new_skb,
|
|
sizeof(struct qeth_hdr));
|
|
qeth_l3_fill_header(card, hdr, new_skb, ipv,
|
|
cast_type);
|
|
} else {
|
|
if (new_skb->protocol == ETH_P_AF_IUCV)
|
|
qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
|
|
else {
|
|
qeth_l3_fill_header(card, hdr, new_skb, ipv,
|
|
cast_type);
|
|
hdr->hdr.l3.length = new_skb->len - data_offset;
|
|
}
|
|
}
|
|
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL)
|
|
qeth_l3_hdr_csum(card, hdr, new_skb);
|
|
}
|
|
|
|
elems = qeth_get_elements_no(card, new_skb, elements_needed);
|
|
if (!elems) {
|
|
if (data_offset >= 0)
|
|
kmem_cache_free(qeth_core_header_cache, hdr);
|
|
goto tx_drop;
|
|
}
|
|
elements_needed += elems;
|
|
nr_frags = skb_shinfo(new_skb)->nr_frags;
|
|
|
|
if (card->info.type != QETH_CARD_TYPE_IQD) {
|
|
int len;
|
|
if (large_send)
|
|
len = ((unsigned long)tcp_hdr(new_skb) +
|
|
tcp_hdr(new_skb)->doff * 4) -
|
|
(unsigned long)new_skb->data;
|
|
else
|
|
len = sizeof(struct qeth_hdr_layer3);
|
|
|
|
if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
|
|
goto tx_drop;
|
|
rc = qeth_do_send_packet(card, queue, new_skb, hdr,
|
|
elements_needed);
|
|
} else
|
|
rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
|
|
elements_needed, data_offset, 0);
|
|
|
|
if (!rc) {
|
|
card->stats.tx_packets++;
|
|
card->stats.tx_bytes += tx_bytes;
|
|
if (new_skb != skb)
|
|
dev_kfree_skb_any(skb);
|
|
if (card->options.performance_stats) {
|
|
if (large_send) {
|
|
card->perf_stats.large_send_bytes += tx_bytes;
|
|
card->perf_stats.large_send_cnt++;
|
|
}
|
|
if (nr_frags) {
|
|
card->perf_stats.sg_skbs_sent++;
|
|
/* nr_frags + skb->data */
|
|
card->perf_stats.sg_frags_sent += nr_frags + 1;
|
|
}
|
|
}
|
|
rc = NETDEV_TX_OK;
|
|
} else {
|
|
if (data_offset >= 0)
|
|
kmem_cache_free(qeth_core_header_cache, hdr);
|
|
|
|
if (rc == -EBUSY) {
|
|
if (new_skb != skb)
|
|
dev_kfree_skb_any(new_skb);
|
|
return NETDEV_TX_BUSY;
|
|
} else
|
|
goto tx_drop;
|
|
}
|
|
|
|
netif_wake_queue(dev);
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.outbound_time += qeth_get_micros() -
|
|
card->perf_stats.outbound_start_time;
|
|
return rc;
|
|
|
|
tx_drop:
|
|
card->stats.tx_dropped++;
|
|
card->stats.tx_errors++;
|
|
if ((new_skb != skb) && new_skb)
|
|
dev_kfree_skb_any(new_skb);
|
|
dev_kfree_skb_any(skb);
|
|
netif_wake_queue(dev);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static int __qeth_l3_open(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 4, "qethopen");
|
|
if (card->state == CARD_STATE_UP)
|
|
return rc;
|
|
if (card->state != CARD_STATE_SOFTSETUP)
|
|
return -ENODEV;
|
|
card->data.state = CH_STATE_UP;
|
|
card->state = CARD_STATE_UP;
|
|
netif_start_queue(dev);
|
|
|
|
if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
|
|
napi_enable(&card->napi);
|
|
napi_schedule(&card->napi);
|
|
} else
|
|
rc = -EIO;
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_open(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
QETH_CARD_TEXT(card, 5, "qethope_");
|
|
if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
|
|
QETH_CARD_TEXT(card, 3, "openREC");
|
|
return -ERESTARTSYS;
|
|
}
|
|
return __qeth_l3_open(dev);
|
|
}
|
|
|
|
static int qeth_l3_stop(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
QETH_CARD_TEXT(card, 4, "qethstop");
|
|
netif_tx_disable(dev);
|
|
if (card->state == CARD_STATE_UP) {
|
|
card->state = CARD_STATE_SOFTSETUP;
|
|
napi_disable(&card->napi);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
|
|
netdev_features_t features)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
|
|
features &= ~NETIF_F_IP_CSUM;
|
|
if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
|
|
features &= ~NETIF_F_TSO;
|
|
if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
|
|
features &= ~NETIF_F_RXCSUM;
|
|
|
|
return features;
|
|
}
|
|
|
|
static int qeth_l3_set_features(struct net_device *dev,
|
|
netdev_features_t features)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
u32 changed = dev->features ^ features;
|
|
int err;
|
|
|
|
if (!(changed & NETIF_F_RXCSUM))
|
|
return 0;
|
|
|
|
if (card->state == CARD_STATE_DOWN ||
|
|
card->state == CARD_STATE_RECOVER)
|
|
return 0;
|
|
|
|
err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM);
|
|
if (err)
|
|
dev->features = features ^ NETIF_F_RXCSUM;
|
|
|
|
return err;
|
|
}
|
|
|
|
static const struct ethtool_ops qeth_l3_ethtool_ops = {
|
|
.get_link = ethtool_op_get_link,
|
|
.get_strings = qeth_core_get_strings,
|
|
.get_ethtool_stats = qeth_core_get_ethtool_stats,
|
|
.get_sset_count = qeth_core_get_sset_count,
|
|
.get_drvinfo = qeth_core_get_drvinfo,
|
|
.get_settings = qeth_core_ethtool_get_settings,
|
|
};
|
|
|
|
/*
|
|
* we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
|
|
* NOARP on the netdevice is no option because it also turns off neighbor
|
|
* solicitation. For IPv4 we install a neighbor_setup function. We don't want
|
|
* arp resolution but we want the hard header (packet socket will work
|
|
* e.g. tcpdump)
|
|
*/
|
|
static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
|
|
{
|
|
n->nud_state = NUD_NOARP;
|
|
memcpy(n->ha, "FAKELL", 6);
|
|
n->output = n->ops->connected_output;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
|
|
{
|
|
if (np->tbl->family == AF_INET)
|
|
np->neigh_setup = qeth_l3_neigh_setup_noarp;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct net_device_ops qeth_l3_netdev_ops = {
|
|
.ndo_open = qeth_l3_open,
|
|
.ndo_stop = qeth_l3_stop,
|
|
.ndo_get_stats = qeth_get_stats,
|
|
.ndo_start_xmit = qeth_l3_hard_start_xmit,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_rx_mode = qeth_l3_set_multicast_list,
|
|
.ndo_do_ioctl = qeth_l3_do_ioctl,
|
|
.ndo_change_mtu = qeth_change_mtu,
|
|
.ndo_fix_features = qeth_l3_fix_features,
|
|
.ndo_set_features = qeth_l3_set_features,
|
|
.ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
|
|
.ndo_tx_timeout = qeth_tx_timeout,
|
|
};
|
|
|
|
static const struct net_device_ops qeth_l3_osa_netdev_ops = {
|
|
.ndo_open = qeth_l3_open,
|
|
.ndo_stop = qeth_l3_stop,
|
|
.ndo_get_stats = qeth_get_stats,
|
|
.ndo_start_xmit = qeth_l3_hard_start_xmit,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_rx_mode = qeth_l3_set_multicast_list,
|
|
.ndo_do_ioctl = qeth_l3_do_ioctl,
|
|
.ndo_change_mtu = qeth_change_mtu,
|
|
.ndo_fix_features = qeth_l3_fix_features,
|
|
.ndo_set_features = qeth_l3_set_features,
|
|
.ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
|
|
.ndo_tx_timeout = qeth_tx_timeout,
|
|
.ndo_neigh_setup = qeth_l3_neigh_setup,
|
|
};
|
|
|
|
static int qeth_l3_setup_netdev(struct qeth_card *card)
|
|
{
|
|
if (card->info.type == QETH_CARD_TYPE_OSD ||
|
|
card->info.type == QETH_CARD_TYPE_OSX) {
|
|
if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
|
|
(card->info.link_type == QETH_LINK_TYPE_HSTR)) {
|
|
pr_info("qeth_l3: ignoring TR device\n");
|
|
return -ENODEV;
|
|
} else {
|
|
card->dev = alloc_etherdev(0);
|
|
if (!card->dev)
|
|
return -ENODEV;
|
|
card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
|
|
|
|
/*IPv6 address autoconfiguration stuff*/
|
|
qeth_l3_get_unique_id(card);
|
|
if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
|
|
card->dev->dev_id = card->info.unique_id &
|
|
0xffff;
|
|
if (!card->info.guestlan) {
|
|
card->dev->hw_features = NETIF_F_SG |
|
|
NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
|
|
NETIF_F_TSO;
|
|
card->dev->features = NETIF_F_RXCSUM;
|
|
}
|
|
}
|
|
} else if (card->info.type == QETH_CARD_TYPE_IQD) {
|
|
card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
|
|
ether_setup);
|
|
if (!card->dev)
|
|
return -ENODEV;
|
|
card->dev->flags |= IFF_NOARP;
|
|
card->dev->netdev_ops = &qeth_l3_netdev_ops;
|
|
qeth_l3_iqd_read_initial_mac(card);
|
|
if (card->options.hsuid[0])
|
|
memcpy(card->dev->perm_addr, card->options.hsuid, 9);
|
|
} else
|
|
return -ENODEV;
|
|
|
|
card->dev->ml_priv = card;
|
|
card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
|
|
card->dev->mtu = card->info.initial_mtu;
|
|
card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
|
|
card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
|
|
NETIF_F_HW_VLAN_CTAG_RX |
|
|
NETIF_F_HW_VLAN_CTAG_FILTER;
|
|
netif_keep_dst(card->dev);
|
|
card->dev->gso_max_size = 15 * PAGE_SIZE;
|
|
|
|
SET_NETDEV_DEV(card->dev, &card->gdev->dev);
|
|
netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
|
|
return register_netdev(card->dev);
|
|
}
|
|
|
|
static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
|
|
qeth_l3_create_device_attributes(&gdev->dev);
|
|
card->options.layer2 = 0;
|
|
card->info.hwtrap = 0;
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
|
|
|
|
qeth_l3_remove_device_attributes(&cgdev->dev);
|
|
|
|
qeth_set_allowed_threads(card, 0, 1);
|
|
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
|
|
|
|
if (cgdev->state == CCWGROUP_ONLINE)
|
|
qeth_l3_set_offline(cgdev);
|
|
|
|
if (card->dev) {
|
|
unregister_netdev(card->dev);
|
|
card->dev = NULL;
|
|
}
|
|
|
|
qeth_l3_clear_ip_list(card, 0);
|
|
qeth_l3_clear_ipato_list(card);
|
|
return;
|
|
}
|
|
|
|
static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
int rc = 0;
|
|
enum qeth_card_states recover_flag;
|
|
|
|
mutex_lock(&card->discipline_mutex);
|
|
mutex_lock(&card->conf_mutex);
|
|
QETH_DBF_TEXT(SETUP, 2, "setonlin");
|
|
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
|
|
|
|
recover_flag = card->state;
|
|
rc = qeth_core_hardsetup_card(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
}
|
|
|
|
if (!card->dev && qeth_l3_setup_netdev(card)) {
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
}
|
|
|
|
if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
|
|
if (card->info.hwtrap &&
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
|
|
card->info.hwtrap = 0;
|
|
} else
|
|
card->info.hwtrap = 0;
|
|
|
|
card->state = CARD_STATE_HARDSETUP;
|
|
memset(&card->rx, 0, sizeof(struct qeth_rx));
|
|
qeth_print_status_message(card);
|
|
|
|
/* softsetup */
|
|
QETH_DBF_TEXT(SETUP, 2, "softsetp");
|
|
|
|
rc = qeth_send_startlan(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
if (rc == 0xe080) {
|
|
dev_warn(&card->gdev->dev,
|
|
"The LAN is offline\n");
|
|
card->lan_online = 0;
|
|
goto contin;
|
|
}
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
} else
|
|
card->lan_online = 1;
|
|
|
|
contin:
|
|
rc = qeth_l3_setadapter_parms(card);
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
|
|
if (!card->options.sniffer) {
|
|
rc = qeth_l3_start_ipassists(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
|
|
goto out_remove;
|
|
}
|
|
rc = qeth_l3_setrouting_v4(card);
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
|
|
rc = qeth_l3_setrouting_v6(card);
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
|
|
}
|
|
netif_tx_disable(card->dev);
|
|
|
|
rc = qeth_init_qdio_queues(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
|
|
rc = -ENODEV;
|
|
goto out_remove;
|
|
}
|
|
card->state = CARD_STATE_SOFTSETUP;
|
|
|
|
qeth_set_allowed_threads(card, 0xffffffff, 0);
|
|
qeth_l3_set_ip_addr_list(card);
|
|
if (card->lan_online)
|
|
netif_carrier_on(card->dev);
|
|
else
|
|
netif_carrier_off(card->dev);
|
|
if (recover_flag == CARD_STATE_RECOVER) {
|
|
rtnl_lock();
|
|
if (recovery_mode)
|
|
__qeth_l3_open(card->dev);
|
|
else
|
|
dev_open(card->dev);
|
|
qeth_l3_set_multicast_list(card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
qeth_trace_features(card);
|
|
/* let user_space know that device is online */
|
|
kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
|
|
mutex_unlock(&card->conf_mutex);
|
|
mutex_unlock(&card->discipline_mutex);
|
|
return 0;
|
|
out_remove:
|
|
qeth_l3_stop_card(card, 0);
|
|
ccw_device_set_offline(CARD_DDEV(card));
|
|
ccw_device_set_offline(CARD_WDEV(card));
|
|
ccw_device_set_offline(CARD_RDEV(card));
|
|
qdio_free(CARD_DDEV(card));
|
|
if (recover_flag == CARD_STATE_RECOVER)
|
|
card->state = CARD_STATE_RECOVER;
|
|
else
|
|
card->state = CARD_STATE_DOWN;
|
|
mutex_unlock(&card->conf_mutex);
|
|
mutex_unlock(&card->discipline_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_set_online(struct ccwgroup_device *gdev)
|
|
{
|
|
return __qeth_l3_set_online(gdev, 0);
|
|
}
|
|
|
|
static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
|
|
int recovery_mode)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
|
|
int rc = 0, rc2 = 0, rc3 = 0;
|
|
enum qeth_card_states recover_flag;
|
|
|
|
mutex_lock(&card->discipline_mutex);
|
|
mutex_lock(&card->conf_mutex);
|
|
QETH_DBF_TEXT(SETUP, 3, "setoffl");
|
|
QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
|
|
|
|
if (card->dev && netif_carrier_ok(card->dev))
|
|
netif_carrier_off(card->dev);
|
|
recover_flag = card->state;
|
|
if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
|
|
card->info.hwtrap = 1;
|
|
}
|
|
qeth_l3_stop_card(card, recovery_mode);
|
|
if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
|
|
rtnl_lock();
|
|
call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
rc = ccw_device_set_offline(CARD_DDEV(card));
|
|
rc2 = ccw_device_set_offline(CARD_WDEV(card));
|
|
rc3 = ccw_device_set_offline(CARD_RDEV(card));
|
|
if (!rc)
|
|
rc = (rc2) ? rc2 : rc3;
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
qdio_free(CARD_DDEV(card));
|
|
if (recover_flag == CARD_STATE_UP)
|
|
card->state = CARD_STATE_RECOVER;
|
|
/* let user_space know that device is offline */
|
|
kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
|
|
mutex_unlock(&card->conf_mutex);
|
|
mutex_unlock(&card->discipline_mutex);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
|
|
{
|
|
return __qeth_l3_set_offline(cgdev, 0);
|
|
}
|
|
|
|
static int qeth_l3_recover(void *ptr)
|
|
{
|
|
struct qeth_card *card;
|
|
int rc = 0;
|
|
|
|
card = (struct qeth_card *) ptr;
|
|
QETH_CARD_TEXT(card, 2, "recover1");
|
|
QETH_CARD_HEX(card, 2, &card, sizeof(void *));
|
|
if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
|
|
return 0;
|
|
QETH_CARD_TEXT(card, 2, "recover2");
|
|
dev_warn(&card->gdev->dev,
|
|
"A recovery process has been started for the device\n");
|
|
qeth_set_recovery_task(card);
|
|
__qeth_l3_set_offline(card->gdev, 1);
|
|
rc = __qeth_l3_set_online(card->gdev, 1);
|
|
if (!rc)
|
|
dev_info(&card->gdev->dev,
|
|
"Device successfully recovered!\n");
|
|
else {
|
|
qeth_close_dev(card);
|
|
dev_warn(&card->gdev->dev, "The qeth device driver "
|
|
"failed to recover an error on the device\n");
|
|
}
|
|
qeth_clear_recovery_task(card);
|
|
qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
|
|
qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
qeth_set_allowed_threads(card, 0, 1);
|
|
if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
|
|
qeth_qdio_clear_card(card, 0);
|
|
qeth_clear_qdio_buffers(card);
|
|
qdio_free(CARD_DDEV(card));
|
|
}
|
|
|
|
static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
|
|
if (card->dev)
|
|
netif_device_detach(card->dev);
|
|
qeth_set_allowed_threads(card, 0, 1);
|
|
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
|
|
if (gdev->state == CCWGROUP_OFFLINE)
|
|
return 0;
|
|
if (card->state == CARD_STATE_UP) {
|
|
if (card->info.hwtrap)
|
|
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
|
|
__qeth_l3_set_offline(card->gdev, 1);
|
|
} else
|
|
__qeth_l3_set_offline(card->gdev, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
int rc = 0;
|
|
|
|
if (gdev->state == CCWGROUP_OFFLINE)
|
|
goto out;
|
|
|
|
if (card->state == CARD_STATE_RECOVER) {
|
|
rc = __qeth_l3_set_online(card->gdev, 1);
|
|
if (rc) {
|
|
rtnl_lock();
|
|
dev_close(card->dev);
|
|
rtnl_unlock();
|
|
}
|
|
} else
|
|
rc = __qeth_l3_set_online(card->gdev, 0);
|
|
out:
|
|
qeth_set_allowed_threads(card, 0xffffffff, 0);
|
|
if (card->dev)
|
|
netif_device_attach(card->dev);
|
|
if (rc)
|
|
dev_warn(&card->gdev->dev, "The qeth device driver "
|
|
"failed to recover an error on the device\n");
|
|
return rc;
|
|
}
|
|
|
|
/* Returns zero if the command is successfully "consumed" */
|
|
static int qeth_l3_control_event(struct qeth_card *card,
|
|
struct qeth_ipa_cmd *cmd)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
struct qeth_discipline qeth_l3_discipline = {
|
|
.start_poll = qeth_qdio_start_poll,
|
|
.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
|
|
.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
|
|
.recover = qeth_l3_recover,
|
|
.setup = qeth_l3_probe_device,
|
|
.remove = qeth_l3_remove_device,
|
|
.set_online = qeth_l3_set_online,
|
|
.set_offline = qeth_l3_set_offline,
|
|
.shutdown = qeth_l3_shutdown,
|
|
.freeze = qeth_l3_pm_suspend,
|
|
.thaw = qeth_l3_pm_resume,
|
|
.restore = qeth_l3_pm_resume,
|
|
.control_event_handler = qeth_l3_control_event,
|
|
};
|
|
EXPORT_SYMBOL_GPL(qeth_l3_discipline);
|
|
|
|
static int qeth_l3_ip_event(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
|
|
struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
|
|
struct qeth_ipaddr *addr;
|
|
struct qeth_card *card;
|
|
|
|
if (dev_net(dev) != &init_net)
|
|
return NOTIFY_DONE;
|
|
|
|
card = qeth_l3_get_card_from_dev(dev);
|
|
if (!card)
|
|
return NOTIFY_DONE;
|
|
QETH_CARD_TEXT(card, 3, "ipevent");
|
|
|
|
addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
|
|
if (addr != NULL) {
|
|
addr->u.a4.addr = ifa->ifa_address;
|
|
addr->u.a4.mask = ifa->ifa_mask;
|
|
addr->type = QETH_IP_TYPE_NORMAL;
|
|
} else
|
|
goto out;
|
|
|
|
switch (event) {
|
|
case NETDEV_UP:
|
|
if (!qeth_l3_add_ip(card, addr))
|
|
kfree(addr);
|
|
break;
|
|
case NETDEV_DOWN:
|
|
if (!qeth_l3_delete_ip(card, addr))
|
|
kfree(addr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
qeth_l3_set_ip_addr_list(card);
|
|
out:
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block qeth_l3_ip_notifier = {
|
|
qeth_l3_ip_event,
|
|
NULL,
|
|
};
|
|
|
|
#ifdef CONFIG_QETH_IPV6
|
|
/**
|
|
* IPv6 event handler
|
|
*/
|
|
static int qeth_l3_ip6_event(struct notifier_block *this,
|
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unsigned long event, void *ptr)
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{
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struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
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struct net_device *dev = (struct net_device *)ifa->idev->dev;
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struct qeth_ipaddr *addr;
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struct qeth_card *card;
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card = qeth_l3_get_card_from_dev(dev);
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if (!card)
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return NOTIFY_DONE;
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QETH_CARD_TEXT(card, 3, "ip6event");
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if (!qeth_is_supported(card, IPA_IPV6))
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return NOTIFY_DONE;
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addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
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if (addr != NULL) {
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memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
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addr->u.a6.pfxlen = ifa->prefix_len;
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addr->type = QETH_IP_TYPE_NORMAL;
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} else
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goto out;
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switch (event) {
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case NETDEV_UP:
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if (!qeth_l3_add_ip(card, addr))
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kfree(addr);
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break;
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case NETDEV_DOWN:
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if (!qeth_l3_delete_ip(card, addr))
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kfree(addr);
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break;
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default:
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break;
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}
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qeth_l3_set_ip_addr_list(card);
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out:
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return NOTIFY_DONE;
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}
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|
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static struct notifier_block qeth_l3_ip6_notifier = {
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qeth_l3_ip6_event,
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NULL,
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};
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#endif
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static int qeth_l3_register_notifiers(void)
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{
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int rc;
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|
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QETH_DBF_TEXT(SETUP, 5, "regnotif");
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rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
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if (rc)
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return rc;
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#ifdef CONFIG_QETH_IPV6
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rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
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if (rc) {
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unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
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return rc;
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}
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#else
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pr_warning("There is no IPv6 support for the layer 3 discipline\n");
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#endif
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return 0;
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}
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|
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static void qeth_l3_unregister_notifiers(void)
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{
|
|
|
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QETH_DBF_TEXT(SETUP, 5, "unregnot");
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WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
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#ifdef CONFIG_QETH_IPV6
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WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
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#endif /* QETH_IPV6 */
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}
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|
|
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static int __init qeth_l3_init(void)
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{
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int rc = 0;
|
|
|
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pr_info("register layer 3 discipline\n");
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rc = qeth_l3_register_notifiers();
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|
return rc;
|
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}
|
|
|
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static void __exit qeth_l3_exit(void)
|
|
{
|
|
qeth_l3_unregister_notifiers();
|
|
pr_info("unregister layer 3 discipline\n");
|
|
}
|
|
|
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module_init(qeth_l3_init);
|
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module_exit(qeth_l3_exit);
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MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
|
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MODULE_DESCRIPTION("qeth layer 3 discipline");
|
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MODULE_LICENSE("GPL");
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