![David S. Miller](/assets/img/avatar_default.png)
Fun set of conflict resolutions here... For the mac80211 stuff, these were fortunately just parallel adds. Trivially resolved. In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the function phy_disable_interrupts() earlier in the file, whilst in 'net-next' the phy_error() call from this function was removed. In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the 'rt_table_id' member of rtable collided with a bug fix in 'net' that added a new struct member "rt_mtu_locked" which needs to be copied over here. The mlxsw driver conflict consisted of net-next separating the span code and definitions into separate files, whilst a 'net' bug fix made some changes to that moved code. The mlx5 infiniband conflict resolution was quite non-trivial, the RDMA tree's merge commit was used as a guide here, and here are their notes: ==================== Due to bug fixes found by the syzkaller bot and taken into the for-rc branch after development for the 4.17 merge window had already started being taken into the for-next branch, there were fairly non-trivial merge issues that would need to be resolved between the for-rc branch and the for-next branch. This merge resolves those conflicts and provides a unified base upon which ongoing development for 4.17 can be based. Conflicts: drivers/infiniband/hw/mlx5/main.c - Commit42cea83f95
(IB/mlx5: Fix cleanup order on unload) added to for-rc and commitb5ca15ad7e
(IB/mlx5: Add proper representors support) add as part of the devel cycle both needed to modify the init/de-init functions used by mlx5. To support the new representors, the new functions added by the cleanup patch needed to be made non-static, and the init/de-init list added by the representors patch needed to be modified to match the init/de-init list changes made by the cleanup patch. Updates: drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function prototypes added by representors patch to reflect new function names as changed by cleanup patch drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init stage list to match new order from cleanup patch ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
3106 lines
79 KiB
C
3106 lines
79 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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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/ip.h>
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#include <linux/in.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_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/skbuff.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/ipv6.h>
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#include <net/ip6_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 <linux/hashtable.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_stop(struct net_device *);
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static void qeth_l3_set_rx_mode(struct net_device *dev);
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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 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
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{
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sprintf(buf, "%pI4", addr);
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}
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static 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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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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static struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions prot)
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{
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struct qeth_ipaddr *addr = kmalloc(sizeof(*addr), GFP_ATOMIC);
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if (addr)
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qeth_l3_init_ipaddr(addr, QETH_IP_TYPE_NORMAL, prot);
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return addr;
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}
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static struct qeth_ipaddr *qeth_l3_find_addr_by_ip(struct qeth_card *card,
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struct qeth_ipaddr *query)
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{
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u64 key = qeth_l3_ipaddr_hash(query);
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struct qeth_ipaddr *addr;
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if (query->is_multicast) {
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hash_for_each_possible(card->ip_mc_htable, addr, hnode, key)
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if (qeth_l3_addr_match_ip(addr, query))
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return addr;
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} else {
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hash_for_each_possible(card->ip_htable, addr, hnode, key)
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if (qeth_l3_addr_match_ip(addr, query))
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return addr;
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}
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return NULL;
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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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static bool 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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if (addr->type != QETH_IP_TYPE_NORMAL)
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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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static int qeth_l3_delete_ip(struct qeth_card *card,
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struct qeth_ipaddr *tmp_addr)
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{
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int rc = 0;
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struct qeth_ipaddr *addr;
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if (tmp_addr->type == QETH_IP_TYPE_RXIP)
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QETH_CARD_TEXT(card, 2, "delrxip");
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else if (tmp_addr->type == QETH_IP_TYPE_VIPA)
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QETH_CARD_TEXT(card, 2, "delvipa");
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else
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QETH_CARD_TEXT(card, 2, "delip");
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if (tmp_addr->proto == QETH_PROT_IPV4)
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QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
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else {
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QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
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QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
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}
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addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
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if (!addr || !qeth_l3_addr_match_all(addr, tmp_addr))
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return -ENOENT;
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addr->ref_counter--;
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if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
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return rc;
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if (addr->in_progress)
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return -EINPROGRESS;
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if (qeth_card_hw_is_reachable(card))
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rc = qeth_l3_deregister_addr_entry(card, addr);
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hash_del(&addr->hnode);
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kfree(addr);
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return rc;
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}
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static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
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{
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int rc = 0;
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struct qeth_ipaddr *addr;
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char buf[40];
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if (tmp_addr->type == QETH_IP_TYPE_RXIP)
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QETH_CARD_TEXT(card, 2, "addrxip");
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else if (tmp_addr->type == QETH_IP_TYPE_VIPA)
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QETH_CARD_TEXT(card, 2, "addvipa");
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else
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QETH_CARD_TEXT(card, 2, "addip");
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if (tmp_addr->proto == QETH_PROT_IPV4)
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QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
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else {
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QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
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QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
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}
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addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
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if (addr) {
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if (tmp_addr->type != QETH_IP_TYPE_NORMAL)
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return -EADDRINUSE;
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if (qeth_l3_addr_match_all(addr, tmp_addr)) {
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addr->ref_counter++;
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return 0;
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}
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qeth_l3_ipaddr_to_string(tmp_addr->proto, (u8 *)&tmp_addr->u,
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buf);
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dev_warn(&card->gdev->dev,
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"Registering IP address %s failed\n", buf);
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return -EADDRINUSE;
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} else {
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addr = qeth_l3_get_addr_buffer(tmp_addr->proto);
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if (!addr)
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return -ENOMEM;
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memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr));
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addr->ref_counter = 1;
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if (qeth_l3_is_addr_covered_by_ipato(card, addr)) {
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QETH_CARD_TEXT(card, 2, "tkovaddr");
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addr->ipato = 1;
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}
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hash_add(card->ip_htable, &addr->hnode,
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qeth_l3_ipaddr_hash(addr));
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if (!qeth_card_hw_is_reachable(card)) {
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addr->disp_flag = QETH_DISP_ADDR_ADD;
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return 0;
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}
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/* qeth_l3_register_addr_entry can go to sleep
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* if we add a IPV4 addr. It is caused by the reason
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* that SETIP ipa cmd starts ARP staff for IPV4 addr.
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* Thus we should unlock spinlock, and make a protection
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* using in_progress variable to indicate that there is
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* an hardware operation with this IPV4 address
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*/
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if (addr->proto == QETH_PROT_IPV4) {
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addr->in_progress = 1;
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spin_unlock_bh(&card->ip_lock);
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rc = qeth_l3_register_addr_entry(card, addr);
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spin_lock_bh(&card->ip_lock);
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addr->in_progress = 0;
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} else
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rc = qeth_l3_register_addr_entry(card, addr);
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if (!rc || (rc == IPA_RC_DUPLICATE_IP_ADDRESS) ||
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(rc == IPA_RC_LAN_OFFLINE)) {
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addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
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if (addr->ref_counter < 1) {
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qeth_l3_deregister_addr_entry(card, addr);
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hash_del(&addr->hnode);
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kfree(addr);
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}
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} else {
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hash_del(&addr->hnode);
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kfree(addr);
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}
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}
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return rc;
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}
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static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
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{
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struct qeth_ipaddr *addr;
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struct hlist_node *tmp;
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int i;
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QETH_CARD_TEXT(card, 4, "clearip");
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if (recover && card->options.sniffer)
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return;
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spin_lock_bh(&card->ip_lock);
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hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
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if (!recover) {
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hash_del(&addr->hnode);
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kfree(addr);
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continue;
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}
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addr->disp_flag = QETH_DISP_ADDR_ADD;
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}
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spin_unlock_bh(&card->ip_lock);
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spin_lock_bh(&card->mclock);
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hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
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hash_del(&addr->hnode);
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kfree(addr);
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}
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spin_unlock_bh(&card->mclock);
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}
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static void qeth_l3_recover_ip(struct qeth_card *card)
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{
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struct qeth_ipaddr *addr;
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struct hlist_node *tmp;
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int i;
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int rc;
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QETH_CARD_TEXT(card, 4, "recovrip");
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spin_lock_bh(&card->ip_lock);
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hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
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if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
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if (addr->proto == QETH_PROT_IPV4) {
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addr->in_progress = 1;
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spin_unlock_bh(&card->ip_lock);
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rc = qeth_l3_register_addr_entry(card, addr);
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spin_lock_bh(&card->ip_lock);
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addr->in_progress = 0;
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} else
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rc = qeth_l3_register_addr_entry(card, addr);
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if (!rc) {
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addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
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if (addr->ref_counter < 1)
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qeth_l3_delete_ip(card, addr);
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} else {
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hash_del(&addr->hnode);
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kfree(addr);
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}
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}
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}
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spin_unlock_bh(&card->ip_lock);
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}
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static int qeth_l3_send_setdelmc(struct qeth_card *card,
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struct qeth_ipaddr *addr, int ipacmd)
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{
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int rc;
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struct qeth_cmd_buffer *iob;
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struct qeth_ipa_cmd *cmd;
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QETH_CARD_TEXT(card, 4, "setdelmc");
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iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
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if (!iob)
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return -ENOMEM;
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cmd = __ipa_cmd(iob);
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ether_addr_copy(cmd->data.setdelipm.mac, addr->mac);
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if (addr->proto == QETH_PROT_IPV6)
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memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
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sizeof(struct in6_addr));
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else
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memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
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rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
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return rc;
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}
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static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
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{
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int i, j;
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for (i = 0; i < 16; i++) {
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j = (len) - (i * 8);
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if (j >= 8)
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netmask[i] = 0xff;
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else if (j > 0)
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netmask[i] = (u8)(0xFF00 >> j);
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else
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netmask[i] = 0;
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}
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}
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static u32 qeth_l3_get_setdelip_flags(struct qeth_ipaddr *addr, bool set)
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{
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switch (addr->type) {
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case QETH_IP_TYPE_RXIP:
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return (set) ? QETH_IPA_SETIP_TAKEOVER_FLAG : 0;
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case QETH_IP_TYPE_VIPA:
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return (set) ? QETH_IPA_SETIP_VIPA_FLAG :
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QETH_IPA_DELIP_VIPA_FLAG;
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default:
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return (set && addr->ipato) ? QETH_IPA_SETIP_TAKEOVER_FLAG : 0;
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}
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}
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static int qeth_l3_send_setdelip(struct qeth_card *card,
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struct qeth_ipaddr *addr,
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enum qeth_ipa_cmds ipacmd)
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{
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struct qeth_cmd_buffer *iob;
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struct qeth_ipa_cmd *cmd;
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__u8 netmask[16];
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u32 flags;
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QETH_CARD_TEXT(card, 4, "setdelip");
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iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
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if (!iob)
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return -ENOMEM;
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cmd = __ipa_cmd(iob);
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flags = qeth_l3_get_setdelip_flags(addr, ipacmd == IPA_CMD_SETIP);
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QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
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if (addr->proto == QETH_PROT_IPV6) {
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memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
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sizeof(struct in6_addr));
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qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
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memcpy(cmd->data.setdelip6.mask, netmask,
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sizeof(struct in6_addr));
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cmd->data.setdelip6.flags = flags;
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} else {
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memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
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memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
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cmd->data.setdelip4.flags = flags;
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}
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return qeth_send_ipa_cmd(card, iob, NULL, NULL);
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}
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static int qeth_l3_send_setrouting(struct qeth_card *card,
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enum qeth_routing_types type, enum qeth_prot_versions prot)
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{
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int rc;
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struct qeth_ipa_cmd *cmd;
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struct qeth_cmd_buffer *iob;
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QETH_CARD_TEXT(card, 4, "setroutg");
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = __ipa_cmd(iob);
|
|
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");
|
|
|
|
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));
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* IP address takeover related functions
|
|
*/
|
|
|
|
/**
|
|
* qeth_l3_update_ipato() - Update 'takeover' property, for all NORMAL IPs.
|
|
*
|
|
* Caller must hold ip_lock.
|
|
*/
|
|
void qeth_l3_update_ipato(struct qeth_card *card)
|
|
{
|
|
struct qeth_ipaddr *addr;
|
|
unsigned int i;
|
|
|
|
hash_for_each(card->ip_htable, i, addr, hnode) {
|
|
if (addr->type != QETH_IP_TYPE_NORMAL)
|
|
continue;
|
|
addr->ipato = qeth_l3_is_addr_covered_by_ipato(card, addr);
|
|
}
|
|
}
|
|
|
|
static void qeth_l3_clear_ipato_list(struct qeth_card *card)
|
|
{
|
|
struct qeth_ipato_entry *ipatoe, *tmp;
|
|
|
|
spin_lock_bh(&card->ip_lock);
|
|
|
|
list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
|
|
list_del(&ipatoe->entry);
|
|
kfree(ipatoe);
|
|
}
|
|
|
|
qeth_l3_update_ipato(card);
|
|
spin_unlock_bh(&card->ip_lock);
|
|
}
|
|
|
|
int qeth_l3_add_ipato_entry(struct qeth_card *card,
|
|
struct qeth_ipato_entry *new)
|
|
{
|
|
struct qeth_ipato_entry *ipatoe;
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 2, "addipato");
|
|
|
|
spin_lock_bh(&card->ip_lock);
|
|
|
|
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);
|
|
qeth_l3_update_ipato(card);
|
|
}
|
|
|
|
spin_unlock_bh(&card->ip_lock);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int 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;
|
|
int rc = -ENOENT;
|
|
|
|
QETH_CARD_TEXT(card, 2, "delipato");
|
|
|
|
spin_lock_bh(&card->ip_lock);
|
|
|
|
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);
|
|
qeth_l3_update_ipato(card);
|
|
kfree(ipatoe);
|
|
rc = 0;
|
|
}
|
|
}
|
|
|
|
spin_unlock_bh(&card->ip_lock);
|
|
return rc;
|
|
}
|
|
|
|
int qeth_l3_modify_rxip_vipa(struct qeth_card *card, bool add, const u8 *ip,
|
|
enum qeth_ip_types type,
|
|
enum qeth_prot_versions proto)
|
|
{
|
|
struct qeth_ipaddr addr;
|
|
int rc;
|
|
|
|
qeth_l3_init_ipaddr(&addr, type, proto);
|
|
if (proto == QETH_PROT_IPV4)
|
|
memcpy(&addr.u.a4.addr, ip, 4);
|
|
else
|
|
memcpy(&addr.u.a6.addr, ip, 16);
|
|
|
|
spin_lock_bh(&card->ip_lock);
|
|
rc = add ? qeth_l3_add_ip(card, &addr) : qeth_l3_delete_ip(card, &addr);
|
|
spin_unlock_bh(&card->ip_lock);
|
|
return rc;
|
|
}
|
|
|
|
int qeth_l3_modify_hsuid(struct qeth_card *card, bool add)
|
|
{
|
|
struct qeth_ipaddr addr;
|
|
int rc, i;
|
|
|
|
qeth_l3_init_ipaddr(&addr, QETH_IP_TYPE_NORMAL, QETH_PROT_IPV6);
|
|
addr.u.a6.addr.s6_addr[0] = 0xfe;
|
|
addr.u.a6.addr.s6_addr[1] = 0x80;
|
|
for (i = 0; i < 8; i++)
|
|
addr.u.a6.addr.s6_addr[8+i] = card->options.hsuid[i];
|
|
|
|
spin_lock_bh(&card->ip_lock);
|
|
rc = add ? qeth_l3_add_ip(card, &addr) : qeth_l3_delete_ip(card, &addr);
|
|
spin_unlock_bh(&card->ip_lock);
|
|
return rc;
|
|
}
|
|
|
|
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);
|
|
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);
|
|
if (rc)
|
|
QETH_CARD_TEXT(card, 2, "failed");
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_setadapter_parms(struct qeth_card *card)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "setadprm");
|
|
|
|
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_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_get_setassparms_cmd(card, ipa_func, cmd_code,
|
|
0, QETH_PROT_IPV6);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
rc = qeth_send_setassparms(card, iob, 0, 0,
|
|
qeth_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_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_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_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_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_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;
|
|
}
|
|
|
|
static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "softipv6");
|
|
|
|
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;
|
|
}
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_IQD)
|
|
goto out;
|
|
|
|
rc = qeth_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;
|
|
}
|
|
|
|
static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
|
|
{
|
|
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;
|
|
}
|
|
return qeth_l3_softsetup_ipv6(card);
|
|
}
|
|
|
|
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_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_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_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_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_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*/
|
|
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)
|
|
ether_addr_copy(card->dev->dev_addr,
|
|
cmd->data.create_destroy_addr.unique_id);
|
|
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);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = __ipa_cmd(iob);
|
|
*((__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);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = __ipa_cmd(iob);
|
|
*((__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);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = __ipa_cmd(iob);
|
|
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_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
|
|
{
|
|
struct ip_mc_list *im4;
|
|
struct qeth_ipaddr *tmp, *ipm;
|
|
|
|
QETH_CARD_TEXT(card, 4, "addmc");
|
|
|
|
tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
|
|
if (!tmp)
|
|
return;
|
|
|
|
for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
|
|
im4 = rcu_dereference(im4->next_rcu)) {
|
|
ip_eth_mc_map(im4->multiaddr, tmp->mac);
|
|
tmp->u.a4.addr = be32_to_cpu(im4->multiaddr);
|
|
tmp->is_multicast = 1;
|
|
|
|
ipm = qeth_l3_find_addr_by_ip(card, tmp);
|
|
if (ipm) {
|
|
/* for mcast, by-IP match means full match */
|
|
ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
|
|
} else {
|
|
ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
|
|
if (!ipm)
|
|
continue;
|
|
ether_addr_copy(ipm->mac, tmp->mac);
|
|
ipm->u.a4.addr = be32_to_cpu(im4->multiaddr);
|
|
ipm->is_multicast = 1;
|
|
ipm->disp_flag = QETH_DISP_ADDR_ADD;
|
|
hash_add(card->ip_mc_htable,
|
|
&ipm->hnode, qeth_l3_ipaddr_hash(ipm));
|
|
}
|
|
}
|
|
|
|
kfree(tmp);
|
|
}
|
|
|
|
/* 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_to_hash(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_to_hash(card, in4_dev);
|
|
qeth_l3_add_vlan_mc(card);
|
|
unlock:
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static void qeth_l3_add_mc6_to_hash(struct qeth_card *card,
|
|
struct inet6_dev *in6_dev)
|
|
{
|
|
struct qeth_ipaddr *ipm;
|
|
struct ifmcaddr6 *im6;
|
|
struct qeth_ipaddr *tmp;
|
|
|
|
QETH_CARD_TEXT(card, 4, "addmc6");
|
|
|
|
tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
|
|
if (!tmp)
|
|
return;
|
|
|
|
for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
|
|
ipv6_eth_mc_map(&im6->mca_addr, tmp->mac);
|
|
memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
|
|
sizeof(struct in6_addr));
|
|
tmp->is_multicast = 1;
|
|
|
|
ipm = qeth_l3_find_addr_by_ip(card, tmp);
|
|
if (ipm) {
|
|
/* for mcast, by-IP match means full match */
|
|
ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
|
|
continue;
|
|
}
|
|
|
|
ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
|
|
if (!ipm)
|
|
continue;
|
|
|
|
ether_addr_copy(ipm->mac, tmp->mac);
|
|
memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
|
|
sizeof(struct in6_addr));
|
|
ipm->is_multicast = 1;
|
|
ipm->disp_flag = QETH_DISP_ADDR_ADD;
|
|
hash_add(card->ip_mc_htable,
|
|
&ipm->hnode, qeth_l3_ipaddr_hash(ipm));
|
|
|
|
}
|
|
kfree(tmp);
|
|
}
|
|
|
|
/* 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_to_hash(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)
|
|
return;
|
|
|
|
rcu_read_lock();
|
|
read_lock_bh(&in6_dev->lock);
|
|
qeth_l3_add_mc6_to_hash(card, in6_dev);
|
|
qeth_l3_add_vlan_mc6(card);
|
|
read_unlock_bh(&in6_dev->lock);
|
|
rcu_read_unlock();
|
|
in6_dev_put(in6_dev);
|
|
}
|
|
|
|
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;
|
|
|
|
addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
|
|
if (!addr)
|
|
goto out;
|
|
|
|
spin_lock_bh(&card->ip_lock);
|
|
|
|
for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
|
|
addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
|
|
addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
|
|
addr->type = QETH_IP_TYPE_NORMAL;
|
|
qeth_l3_delete_ip(card, addr);
|
|
}
|
|
|
|
spin_unlock_bh(&card->ip_lock);
|
|
|
|
kfree(addr);
|
|
out:
|
|
in_dev_put(in_dev);
|
|
}
|
|
|
|
static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
|
|
unsigned short vid)
|
|
{
|
|
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;
|
|
|
|
addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
|
|
if (!addr)
|
|
goto out;
|
|
|
|
spin_lock_bh(&card->ip_lock);
|
|
|
|
list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
|
|
memcpy(&addr->u.a6.addr, &ifa->addr,
|
|
sizeof(struct in6_addr));
|
|
addr->u.a6.pfxlen = ifa->prefix_len;
|
|
addr->type = QETH_IP_TYPE_NORMAL;
|
|
qeth_l3_delete_ip(card, addr);
|
|
}
|
|
|
|
spin_unlock_bh(&card->ip_lock);
|
|
|
|
kfree(addr);
|
|
out:
|
|
in6_dev_put(in6_dev);
|
|
}
|
|
|
|
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;
|
|
|
|
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;
|
|
}
|
|
/* unregister IP addresses of vlan device */
|
|
qeth_l3_free_vlan_addresses(card, vid);
|
|
clear_bit(vid, card->active_vlans);
|
|
qeth_l3_set_rx_mode(dev);
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
|
|
struct qeth_hdr *hdr)
|
|
{
|
|
if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
|
|
u16 prot = (hdr->hdr.l3.flags & QETH_HDR_IPV6) ? ETH_P_IPV6 :
|
|
ETH_P_IP;
|
|
unsigned char tg_addr[ETH_ALEN];
|
|
|
|
skb_reset_network_header(skb);
|
|
switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
|
|
case QETH_CAST_MULTICAST:
|
|
if (prot == ETH_P_IP)
|
|
ip_eth_mc_map(ip_hdr(skb)->daddr, tg_addr);
|
|
else
|
|
ipv6_eth_mc_map(&ipv6_hdr(skb)->daddr, tg_addr);
|
|
|
|
card->stats.multicast++;
|
|
break;
|
|
case QETH_CAST_BROADCAST:
|
|
ether_addr_copy(tg_addr, card->dev->broadcast);
|
|
card->stats.multicast++;
|
|
break;
|
|
default:
|
|
if (card->options.sniffer)
|
|
skb->pkt_type = PACKET_OTHERHOST;
|
|
ether_addr_copy(tg_addr, card->dev->dev_addr);
|
|
}
|
|
|
|
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.next_hop.rx.src_mac,
|
|
skb->len);
|
|
else
|
|
card->dev->header_ops->create(skb, card->dev, prot,
|
|
tg_addr, "FAKELL", skb->len);
|
|
}
|
|
|
|
skb->protocol = eth_type_trans(skb, card->dev);
|
|
|
|
/* copy VLAN tag from hdr into skb */
|
|
if (!card->options.sniffer &&
|
|
(hdr->hdr.l3.ext_flags & (QETH_HDR_EXT_VLAN_FRAME |
|
|
QETH_HDR_EXT_INCLUDE_VLAN_TAG))) {
|
|
u16 tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
|
|
hdr->hdr.l3.vlan_id :
|
|
hdr->hdr.l3.next_hop.rx.vlan_id;
|
|
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
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;
|
|
}
|
|
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 = cpu_to_be16(ETH_P_AF_IUCV);
|
|
len = skb->len;
|
|
card->dev->header_ops->create(skb, card->dev, 0,
|
|
card->dev->dev_addr, "FAKELL", len);
|
|
skb_reset_mac_header(skb);
|
|
netif_receive_skb(skb);
|
|
} else {
|
|
qeth_l3_rebuild_skb(card, skb, hdr);
|
|
len = skb->len;
|
|
napi_gro_receive(&card->napi, skb);
|
|
}
|
|
break;
|
|
case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
|
|
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 void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
|
|
{
|
|
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_htable(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);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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_rx_mode(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
struct qeth_ipaddr *addr;
|
|
struct hlist_node *tmp;
|
|
int i, rc;
|
|
|
|
QETH_CARD_TEXT(card, 3, "setmulti");
|
|
if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
|
|
(card->state != CARD_STATE_UP))
|
|
return;
|
|
if (!card->options.sniffer) {
|
|
spin_lock_bh(&card->mclock);
|
|
|
|
qeth_l3_add_multicast_ipv4(card);
|
|
qeth_l3_add_multicast_ipv6(card);
|
|
|
|
hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
|
|
switch (addr->disp_flag) {
|
|
case QETH_DISP_ADDR_DELETE:
|
|
rc = qeth_l3_deregister_addr_entry(card, addr);
|
|
if (!rc || rc == IPA_RC_MC_ADDR_NOT_FOUND) {
|
|
hash_del(&addr->hnode);
|
|
kfree(addr);
|
|
}
|
|
break;
|
|
case QETH_DISP_ADDR_ADD:
|
|
rc = qeth_l3_register_addr_entry(card, addr);
|
|
if (rc && rc != IPA_RC_LAN_OFFLINE) {
|
|
hash_del(&addr->hnode);
|
|
kfree(addr);
|
|
break;
|
|
}
|
|
addr->ref_counter = 1;
|
|
/* fall through */
|
|
default:
|
|
/* for next call to set_rx_mode(): */
|
|
addr->disp_flag = QETH_DISP_ADDR_DELETE;
|
|
}
|
|
}
|
|
|
|
spin_unlock_bh(&card->mclock);
|
|
|
|
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_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_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_QUERY_INFO,
|
|
sizeof(struct qeth_arp_query_data)
|
|
- sizeof(char),
|
|
prot);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
cmd = __ipa_cmd(iob);
|
|
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;
|
|
}
|
|
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);
|
|
}
|
|
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_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_ADD_ENTRY,
|
|
sizeof(struct qeth_arp_cache_entry),
|
|
QETH_PROT_IPV4);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
rc = qeth_send_setassparms(card, iob,
|
|
sizeof(struct qeth_arp_cache_entry),
|
|
(unsigned long) entry,
|
|
qeth_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_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
|
|
IPA_CMD_ASS_ARP_REMOVE_ENTRY,
|
|
12,
|
|
QETH_PROT_IPV4);
|
|
if (!iob)
|
|
return -ENOMEM;
|
|
rc = qeth_send_setassparms(card, iob,
|
|
12, (unsigned long)buf,
|
|
qeth_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_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;
|
|
int rc = 0;
|
|
|
|
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;
|
|
default:
|
|
rc = -EOPNOTSUPP;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_l3_get_cast_type(struct sk_buff *skb)
|
|
{
|
|
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) {
|
|
int 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;
|
|
return RTN_UNSPEC;
|
|
}
|
|
rcu_read_unlock();
|
|
|
|
/* no neighbour (eg AF_PACKET), fall back to target's IP address ... */
|
|
if (be16_to_cpu(skb->protocol) == ETH_P_IPV6)
|
|
return ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) ?
|
|
RTN_MULTICAST : RTN_UNSPEC;
|
|
else if (be16_to_cpu(skb->protocol) == ETH_P_IP)
|
|
return ipv4_is_multicast(ip_hdr(skb)->daddr) ?
|
|
RTN_MULTICAST : RTN_UNSPEC;
|
|
|
|
/* ... and MAC address */
|
|
if (ether_addr_equal_64bits(eth_hdr(skb)->h_dest, skb->dev->broadcast))
|
|
return RTN_BROADCAST;
|
|
if (is_multicast_ether_addr(eth_hdr(skb)->h_dest))
|
|
return RTN_MULTICAST;
|
|
|
|
/* default to unicast */
|
|
return RTN_UNSPEC;
|
|
}
|
|
|
|
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;
|
|
|
|
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 - ETH_HLEN;
|
|
hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
|
|
|
|
iucv_hdr = (struct af_iucv_trans_hdr *) (skb->data + ETH_HLEN);
|
|
memset(daddr, 0, sizeof(daddr));
|
|
daddr[0] = 0xfe;
|
|
daddr[1] = 0x80;
|
|
memcpy(&daddr[8], iucv_hdr->destUserID, 8);
|
|
memcpy(hdr->hdr.l3.next_hop.ipv6_addr, daddr, 16);
|
|
}
|
|
|
|
static u8 qeth_l3_cast_type_to_flag(int cast_type)
|
|
{
|
|
if (cast_type == RTN_MULTICAST)
|
|
return QETH_CAST_MULTICAST;
|
|
if (cast_type == RTN_ANYCAST)
|
|
return QETH_CAST_ANYCAST;
|
|
if (cast_type == RTN_BROADCAST)
|
|
return QETH_CAST_BROADCAST;
|
|
return QETH_CAST_UNICAST;
|
|
}
|
|
|
|
static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
|
|
struct sk_buff *skb, int ipv, int cast_type,
|
|
unsigned int data_len)
|
|
{
|
|
memset(hdr, 0, sizeof(struct qeth_hdr));
|
|
hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
|
|
hdr->hdr.l3.length = data_len;
|
|
|
|
/*
|
|
* before we're going to overwrite this location with next hop ip.
|
|
* v6 uses passthrough, v4 sets the tag in the QDIO header.
|
|
*/
|
|
if (skb_vlan_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 = skb_vlan_tag_get(skb);
|
|
}
|
|
|
|
/* OSA only: */
|
|
if (!ipv) {
|
|
hdr->hdr.l3.flags = QETH_HDR_PASSTHRU;
|
|
if (ether_addr_equal_64bits(eth_hdr(skb)->h_dest,
|
|
skb->dev->broadcast))
|
|
hdr->hdr.l3.flags |= QETH_CAST_BROADCAST;
|
|
else
|
|
hdr->hdr.l3.flags |= (cast_type == RTN_MULTICAST) ?
|
|
QETH_CAST_MULTICAST : QETH_CAST_UNICAST;
|
|
return;
|
|
}
|
|
|
|
hdr->hdr.l3.flags = qeth_l3_cast_type_to_flag(cast_type);
|
|
rcu_read_lock();
|
|
if (ipv == 4) {
|
|
struct rtable *rt = skb_rtable(skb);
|
|
|
|
*((__be32 *) &hdr->hdr.l3.next_hop.ipv4.addr) = (rt) ?
|
|
rt_nexthop(rt, ip_hdr(skb)->daddr) :
|
|
ip_hdr(skb)->daddr;
|
|
} else {
|
|
/* IPv6 */
|
|
const struct rt6_info *rt = skb_rt6_info(skb);
|
|
const struct in6_addr *next_hop;
|
|
|
|
if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
|
|
next_hop = &rt->rt6i_gateway;
|
|
else
|
|
next_hop = &ipv6_hdr(skb)->daddr;
|
|
memcpy(hdr->hdr.l3.next_hop.ipv6_addr, next_hop, 16);
|
|
|
|
hdr->hdr.l3.flags |= QETH_HDR_IPV6;
|
|
if (card->info.type != QETH_CARD_TYPE_IQD)
|
|
hdr->hdr.l3.flags |= QETH_HDR_PASSTHRU;
|
|
}
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static 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;
|
|
/*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)(ip_hdrlen(skb) + tcp_hdrlen(skb));
|
|
hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
|
|
sizeof(struct qeth_hdr_tso));
|
|
tcph->check = 0;
|
|
if (be16_to_cpu(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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
|
|
* @card: qeth card structure, to check max. elems.
|
|
* @skb: SKB address
|
|
* @extra_elems: extra elems needed, to check against max.
|
|
*
|
|
* Returns the number of pages, and thus QDIO buffer elements, needed to cover
|
|
* skb data, including linear part and fragments, but excluding TCP header.
|
|
* (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
|
|
* Checks if the result plus extra_elems fits under the limit for the card.
|
|
* Returns 0 if it does not.
|
|
* Note: extra_elems is not included in the returned result.
|
|
*/
|
|
static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
|
|
struct sk_buff *skb, int extra_elems)
|
|
{
|
|
addr_t start = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
|
|
addr_t end = (addr_t)skb->data + skb_headlen(skb);
|
|
int elements = qeth_get_elements_for_frags(skb);
|
|
|
|
if (start != end)
|
|
elements += qeth_get_elements_for_range(start, end);
|
|
|
|
if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
|
|
QETH_DBF_MESSAGE(2,
|
|
"Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
|
|
elements + extra_elems, skb->len);
|
|
return 0;
|
|
}
|
|
return elements;
|
|
}
|
|
|
|
static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb,
|
|
struct net_device *dev)
|
|
{
|
|
int rc;
|
|
__be16 *tag;
|
|
struct qeth_hdr *hdr = NULL;
|
|
int hdr_elements = 0;
|
|
int elements;
|
|
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(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;
|
|
unsigned int hd_len = 0;
|
|
bool use_tso;
|
|
int data_offset = -1;
|
|
unsigned int nr_frags;
|
|
|
|
if (((card->info.type == QETH_CARD_TYPE_IQD) &&
|
|
(((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
|
|
((card->options.cq == QETH_CQ_ENABLED) &&
|
|
(be16_to_cpu(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();
|
|
}
|
|
|
|
/* Ignore segment size from skb_is_gso(), 1 page is always used. */
|
|
use_tso = skb_is_gso(skb) &&
|
|
(skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4);
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_IQD) {
|
|
new_skb = skb;
|
|
data_offset = ETH_HLEN;
|
|
hd_len = sizeof(*hdr);
|
|
hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
|
|
if (!hdr)
|
|
goto tx_drop;
|
|
hdr_elements++;
|
|
} 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 (ipv == 4) {
|
|
skb_pull(new_skb, ETH_HLEN);
|
|
}
|
|
|
|
if (ipv != 4 && skb_vlan_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 = (__be16 *)(new_skb->data + 12);
|
|
*tag = cpu_to_be16(ETH_P_8021Q);
|
|
*(tag + 1) = cpu_to_be16(skb_vlan_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 ((card->info.type != QETH_CARD_TYPE_IQD) &&
|
|
((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) ||
|
|
(!use_tso && !qeth_get_elements_no(card, new_skb, 0, 0)))) {
|
|
int lin_rc = skb_linearize(new_skb);
|
|
|
|
if (card->options.performance_stats) {
|
|
if (lin_rc)
|
|
card->perf_stats.tx_linfail++;
|
|
else
|
|
card->perf_stats.tx_lin++;
|
|
}
|
|
if (lin_rc)
|
|
goto tx_drop;
|
|
}
|
|
nr_frags = skb_shinfo(new_skb)->nr_frags;
|
|
|
|
if (use_tso) {
|
|
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,
|
|
new_skb->len - sizeof(struct qeth_hdr_tso));
|
|
qeth_tso_fill_header(card, hdr, new_skb);
|
|
hdr_elements++;
|
|
} else {
|
|
if (data_offset < 0) {
|
|
hdr = skb_push(new_skb, sizeof(struct qeth_hdr));
|
|
qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type,
|
|
new_skb->len -
|
|
sizeof(struct qeth_hdr));
|
|
} else {
|
|
if (be16_to_cpu(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,
|
|
new_skb->len - data_offset);
|
|
}
|
|
}
|
|
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL)
|
|
qeth_l3_hdr_csum(card, hdr, new_skb);
|
|
}
|
|
|
|
elements = use_tso ?
|
|
qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) :
|
|
qeth_get_elements_no(card, new_skb, hdr_elements,
|
|
(data_offset > 0) ? data_offset : 0);
|
|
if (!elements) {
|
|
if (data_offset >= 0)
|
|
kmem_cache_free(qeth_core_header_cache, hdr);
|
|
goto tx_drop;
|
|
}
|
|
elements += hdr_elements;
|
|
|
|
if (card->info.type != QETH_CARD_TYPE_IQD) {
|
|
int len;
|
|
if (use_tso) {
|
|
hd_len = sizeof(struct qeth_hdr_tso) +
|
|
ip_hdrlen(new_skb) + tcp_hdrlen(new_skb);
|
|
len = hd_len;
|
|
} 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, hd_len,
|
|
hd_len, elements);
|
|
} else
|
|
rc = qeth_do_send_packet_fast(queue, new_skb, hdr, data_offset,
|
|
hd_len);
|
|
|
|
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 (use_tso) {
|
|
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 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_link_ksettings = qeth_core_ethtool_get_link_ksettings,
|
|
};
|
|
|
|
/*
|
|
* 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_rx_mode,
|
|
.ndo_do_ioctl = qeth_do_ioctl,
|
|
.ndo_change_mtu = qeth_change_mtu,
|
|
.ndo_fix_features = qeth_fix_features,
|
|
.ndo_set_features = qeth_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_features_check = qeth_features_check,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_rx_mode = qeth_l3_set_rx_mode,
|
|
.ndo_do_ioctl = qeth_do_ioctl,
|
|
.ndo_change_mtu = qeth_change_mtu,
|
|
.ndo_fix_features = qeth_fix_features,
|
|
.ndo_set_features = qeth_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)
|
|
{
|
|
int rc;
|
|
|
|
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;
|
|
|
|
card->dev->hw_features |= NETIF_F_SG;
|
|
card->dev->vlan_features |= NETIF_F_SG;
|
|
|
|
if (!card->info.guestlan) {
|
|
card->dev->features |= NETIF_F_SG;
|
|
card->dev->hw_features |= NETIF_F_TSO |
|
|
NETIF_F_RXCSUM | NETIF_F_IP_CSUM;
|
|
card->dev->vlan_features |= NETIF_F_TSO |
|
|
NETIF_F_RXCSUM | NETIF_F_IP_CSUM;
|
|
}
|
|
}
|
|
} 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;
|
|
rc = qeth_l3_iqd_read_initial_mac(card);
|
|
if (rc)
|
|
return rc;
|
|
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->min_mtu = 64;
|
|
card->dev->max_mtu = ETH_MAX_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);
|
|
netif_set_gso_max_size(card->dev, (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
|
|
PAGE_SIZE);
|
|
|
|
SET_NETDEV_DEV(card->dev, &card->gdev->dev);
|
|
netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
|
|
netif_carrier_off(card->dev);
|
|
return register_netdev(card->dev);
|
|
}
|
|
|
|
static const struct device_type qeth_l3_devtype = {
|
|
.name = "qeth_layer3",
|
|
.groups = qeth_l3_attr_groups,
|
|
};
|
|
|
|
static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
int rc;
|
|
|
|
if (gdev->dev.type == &qeth_generic_devtype) {
|
|
rc = qeth_l3_create_device_attributes(&gdev->dev);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
hash_init(card->ip_htable);
|
|
hash_init(card->ip_mc_htable);
|
|
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);
|
|
|
|
if (cgdev->dev.type == &qeth_generic_devtype)
|
|
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);
|
|
free_netdev(card->dev);
|
|
card->dev = NULL;
|
|
}
|
|
|
|
qeth_l3_clear_ip_htable(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%04x", 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;
|
|
qeth_print_status_message(card);
|
|
|
|
/* softsetup */
|
|
QETH_DBF_TEXT(SETUP, 2, "softsetp");
|
|
|
|
rc = qeth_l3_setadapter_parms(card);
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%04x", 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%04x", rc);
|
|
rc = qeth_l3_setrouting_v6(card);
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "5err%04x", 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_recover_ip(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_rx_mode(card->dev);
|
|
qeth_recover_features(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 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 = {
|
|
.devtype = &qeth_l3_devtype,
|
|
.start_poll = qeth_qdio_start_poll,
|
|
.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
|
|
.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
|
|
.process_rx_buffer = qeth_l3_process_inbound_buffer,
|
|
.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,
|
|
.freeze = qeth_l3_pm_suspend,
|
|
.thaw = qeth_l3_pm_resume,
|
|
.restore = qeth_l3_pm_resume,
|
|
.do_ioctl = qeth_l3_do_ioctl,
|
|
.control_event_handler = qeth_l3_control_event,
|
|
};
|
|
EXPORT_SYMBOL_GPL(qeth_l3_discipline);
|
|
|
|
static int qeth_l3_handle_ip_event(struct qeth_card *card,
|
|
struct qeth_ipaddr *addr,
|
|
unsigned long event)
|
|
{
|
|
switch (event) {
|
|
case NETDEV_UP:
|
|
spin_lock_bh(&card->ip_lock);
|
|
qeth_l3_add_ip(card, addr);
|
|
spin_unlock_bh(&card->ip_lock);
|
|
return NOTIFY_OK;
|
|
case NETDEV_DOWN:
|
|
spin_lock_bh(&card->ip_lock);
|
|
qeth_l3_delete_ip(card, addr);
|
|
spin_unlock_bh(&card->ip_lock);
|
|
return NOTIFY_OK;
|
|
default:
|
|
return NOTIFY_DONE;
|
|
}
|
|
}
|
|
|
|
static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
|
|
{
|
|
if (is_vlan_dev(dev))
|
|
dev = vlan_dev_real_dev(dev);
|
|
if (dev->netdev_ops == &qeth_l3_osa_netdev_ops ||
|
|
dev->netdev_ops == &qeth_l3_netdev_ops)
|
|
return (struct qeth_card *) dev->ml_priv;
|
|
return NULL;
|
|
}
|
|
|
|
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 = 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");
|
|
|
|
qeth_l3_init_ipaddr(&addr, QETH_IP_TYPE_NORMAL, QETH_PROT_IPV4);
|
|
addr.u.a4.addr = be32_to_cpu(ifa->ifa_address);
|
|
addr.u.a4.mask = be32_to_cpu(ifa->ifa_mask);
|
|
|
|
return qeth_l3_handle_ip_event(card, &addr, event);
|
|
}
|
|
|
|
static struct notifier_block qeth_l3_ip_notifier = {
|
|
qeth_l3_ip_event,
|
|
NULL,
|
|
};
|
|
|
|
static int qeth_l3_ip6_event(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
|
|
struct net_device *dev = ifa->idev->dev;
|
|
struct qeth_ipaddr addr;
|
|
struct qeth_card *card;
|
|
|
|
card = qeth_l3_get_card_from_dev(dev);
|
|
if (!card)
|
|
return NOTIFY_DONE;
|
|
QETH_CARD_TEXT(card, 3, "ip6event");
|
|
if (!qeth_is_supported(card, IPA_IPV6))
|
|
return NOTIFY_DONE;
|
|
|
|
qeth_l3_init_ipaddr(&addr, QETH_IP_TYPE_NORMAL, QETH_PROT_IPV6);
|
|
addr.u.a6.addr = ifa->addr;
|
|
addr.u.a6.pfxlen = ifa->prefix_len;
|
|
|
|
return qeth_l3_handle_ip_event(card, &addr, event);
|
|
}
|
|
|
|
static struct notifier_block qeth_l3_ip6_notifier = {
|
|
qeth_l3_ip6_event,
|
|
NULL,
|
|
};
|
|
|
|
static int qeth_l3_register_notifiers(void)
|
|
{
|
|
int rc;
|
|
|
|
QETH_DBF_TEXT(SETUP, 5, "regnotif");
|
|
rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
|
|
if (rc)
|
|
return rc;
|
|
rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
|
|
if (rc) {
|
|
unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
|
|
return rc;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_l3_unregister_notifiers(void)
|
|
{
|
|
QETH_DBF_TEXT(SETUP, 5, "unregnot");
|
|
WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
|
|
WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
|
|
}
|
|
|
|
static int __init qeth_l3_init(void)
|
|
{
|
|
pr_info("register layer 3 discipline\n");
|
|
return qeth_l3_register_notifiers();
|
|
}
|
|
|
|
static void __exit qeth_l3_exit(void)
|
|
{
|
|
qeth_l3_unregister_notifiers();
|
|
pr_info("unregister layer 3 discipline\n");
|
|
}
|
|
|
|
module_init(qeth_l3_init);
|
|
module_exit(qeth_l3_exit);
|
|
MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
|
|
MODULE_DESCRIPTION("qeth layer 3 discipline");
|
|
MODULE_LICENSE("GPL");
|