1111 lines
28 KiB
C
1111 lines
28 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright IBM Corp. 2007
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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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#ifndef __QETH_CORE_H__
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#define __QETH_CORE_H__
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#include <linux/completion.h>
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#include <linux/debugfs.h>
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#include <linux/if.h>
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#include <linux/if_arp.h>
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#include <linux/etherdevice.h>
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#include <linux/if_vlan.h>
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#include <linux/ctype.h>
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#include <linux/in6.h>
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#include <linux/bitops.h>
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#include <linux/seq_file.h>
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#include <linux/hashtable.h>
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#include <linux/ip.h>
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#include <linux/rcupdate.h>
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#include <linux/refcount.h>
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#include <linux/timer.h>
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#include <linux/types.h>
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#include <linux/wait.h>
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#include <linux/workqueue.h>
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#include <net/dst.h>
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#include <net/ip6_fib.h>
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#include <net/ipv6.h>
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#include <net/if_inet6.h>
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#include <net/addrconf.h>
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#include <net/route.h>
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#include <net/sch_generic.h>
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#include <net/tcp.h>
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#include <asm/debug.h>
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#include <asm/qdio.h>
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#include <asm/ccwdev.h>
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#include <asm/ccwgroup.h>
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#include <asm/sysinfo.h>
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#include <uapi/linux/if_link.h>
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#include "qeth_core_mpc.h"
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/**
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* Debug Facility stuff
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*/
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enum qeth_dbf_names {
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QETH_DBF_SETUP,
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QETH_DBF_MSG,
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QETH_DBF_CTRL,
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QETH_DBF_INFOS /* must be last element */
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};
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struct qeth_dbf_info {
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char name[DEBUG_MAX_NAME_LEN];
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int pages;
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int areas;
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int len;
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int level;
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struct debug_view *view;
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debug_info_t *id;
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};
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#define QETH_DBF_CTRL_LEN 256U
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#define QETH_DBF_TEXT(name, level, text) \
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debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
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#define QETH_DBF_HEX(name, level, addr, len) \
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debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
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#define QETH_DBF_MESSAGE(level, text...) \
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debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
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#define QETH_DBF_TEXT_(name, level, text...) \
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qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
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#define QETH_CARD_TEXT(card, level, text) \
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debug_text_event(card->debug, level, text)
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#define QETH_CARD_HEX(card, level, addr, len) \
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debug_event(card->debug, level, (void *)(addr), len)
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#define QETH_CARD_MESSAGE(card, text...) \
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debug_sprintf_event(card->debug, level, text)
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#define QETH_CARD_TEXT_(card, level, text...) \
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qeth_dbf_longtext(card->debug, level, text)
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#define SENSE_COMMAND_REJECT_BYTE 0
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#define SENSE_COMMAND_REJECT_FLAG 0x80
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#define SENSE_RESETTING_EVENT_BYTE 1
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#define SENSE_RESETTING_EVENT_FLAG 0x80
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static inline u32 qeth_get_device_id(struct ccw_device *cdev)
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{
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struct ccw_dev_id dev_id;
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u32 id;
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ccw_device_get_id(cdev, &dev_id);
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id = dev_id.devno;
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id |= (u32) (dev_id.ssid << 16);
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return id;
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}
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/*
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* Common IO related definitions
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*/
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#define CARD_RDEV(card) card->read.ccwdev
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#define CARD_WDEV(card) card->write.ccwdev
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#define CARD_DDEV(card) card->data.ccwdev
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#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
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#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
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#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
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#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
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#define CCW_DEVID(cdev) (qeth_get_device_id(cdev))
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#define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card)))
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/* Routing stuff */
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struct qeth_routing_info {
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enum qeth_routing_types type;
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};
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/* SETBRIDGEPORT stuff */
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enum qeth_sbp_roles {
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QETH_SBP_ROLE_NONE = 0,
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QETH_SBP_ROLE_PRIMARY = 1,
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QETH_SBP_ROLE_SECONDARY = 2,
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};
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enum qeth_sbp_states {
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QETH_SBP_STATE_INACTIVE = 0,
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QETH_SBP_STATE_STANDBY = 1,
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QETH_SBP_STATE_ACTIVE = 2,
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};
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#define QETH_SBP_HOST_NOTIFICATION 1
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struct qeth_sbp_info {
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__u32 supported_funcs;
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enum qeth_sbp_roles role;
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__u32 hostnotification:1;
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__u32 reflect_promisc:1;
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__u32 reflect_promisc_primary:1;
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};
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struct qeth_vnicc_info {
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/* supported/currently configured VNICCs; updated in IPA exchanges */
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u32 sup_chars;
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u32 cur_chars;
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/* supported commands: bitmasks which VNICCs support respective cmd */
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u32 set_char_sup;
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u32 getset_timeout_sup;
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/* timeout value for the learning characteristic */
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u32 learning_timeout;
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/* characteristics wanted/configured by user */
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u32 wanted_chars;
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/* has user explicitly enabled rx_bcast while online? */
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bool rx_bcast_enabled;
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};
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#define QETH_IDX_FUNC_LEVEL_OSD 0x0101
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#define QETH_IDX_FUNC_LEVEL_IQD 0x4108
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#define QETH_BUFSIZE 4096
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#define CCW_CMD_WRITE 0x01
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#define CCW_CMD_READ 0x02
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/**
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* some more defs
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*/
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#define QETH_TX_TIMEOUT (100 * HZ)
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#define QETH_RCD_TIMEOUT (60 * HZ)
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#define QETH_RECLAIM_WORK_TIME HZ
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#define QETH_MAX_PORTNO 15
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/*****************************************************************************/
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/* QDIO queue and buffer handling */
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/*****************************************************************************/
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#define QETH_MAX_OUT_QUEUES 4
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#define QETH_IQD_MIN_TXQ 2 /* One for ucast, one for mcast. */
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#define QETH_IQD_MCAST_TXQ 0
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#define QETH_IQD_MIN_UCAST_TXQ 1
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#define QETH_MAX_IN_QUEUES 2
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#define QETH_RX_COPYBREAK (PAGE_SIZE >> 1)
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#define QETH_IN_BUF_SIZE_DEFAULT 65536
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#define QETH_IN_BUF_COUNT_DEFAULT 64
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#define QETH_IN_BUF_COUNT_HSDEFAULT 128
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#define QETH_IN_BUF_COUNT_MIN 8U
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#define QETH_IN_BUF_COUNT_MAX 128U
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#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
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#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
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((card)->qdio.in_buf_pool.buf_count / 2)
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/* buffers we have to be behind before we get a PCI */
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#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
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/*enqueued free buffers left before we get a PCI*/
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#define QETH_PCI_THRESHOLD_B(card) 0
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/*not used unless the microcode gets patched*/
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#define QETH_PCI_TIMER_VALUE(card) 3
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/* priority queing */
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#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
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#define QETH_DEFAULT_QUEUE 2
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#define QETH_NO_PRIO_QUEUEING 0
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#define QETH_PRIO_Q_ING_PREC 1
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#define QETH_PRIO_Q_ING_TOS 2
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#define QETH_PRIO_Q_ING_SKB 3
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#define QETH_PRIO_Q_ING_VLAN 4
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#define QETH_PRIO_Q_ING_FIXED 5
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/* Packing */
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#define QETH_LOW_WATERMARK_PACK 2
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#define QETH_HIGH_WATERMARK_PACK 5
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#define QETH_WATERMARK_PACK_FUZZ 1
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struct qeth_hdr_layer3 {
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__u8 id;
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__u8 flags;
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__u16 inbound_checksum; /*TSO:__u16 seqno */
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__u32 token; /*TSO: __u32 reserved */
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__u16 length;
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__u8 vlan_prio;
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__u8 ext_flags;
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__u16 vlan_id;
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__u16 frame_offset;
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union {
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/* TX: */
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struct in6_addr addr;
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/* RX: */
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struct rx {
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u8 res1[2];
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u8 src_mac[6];
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u8 res2[4];
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u16 vlan_id;
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u8 res3[2];
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} rx;
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} next_hop;
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};
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struct qeth_hdr_layer2 {
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__u8 id;
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__u8 flags[3];
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__u8 port_no;
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__u8 hdr_length;
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__u16 pkt_length;
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__u16 seq_no;
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__u16 vlan_id;
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__u32 reserved;
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__u8 reserved2[16];
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} __attribute__ ((packed));
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struct qeth_hdr {
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union {
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struct qeth_hdr_layer2 l2;
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struct qeth_hdr_layer3 l3;
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} hdr;
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} __attribute__ ((packed));
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#define QETH_QIB_PQUE_ORDER_RR 0
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#define QETH_QIB_PQUE_UNITS_SBAL 2
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#define QETH_QIB_PQUE_PRIO_DEFAULT 4
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struct qeth_qib_parms {
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char pcit_magic[4];
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u32 pcit_a;
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u32 pcit_b;
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u32 pcit_c;
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char blkt_magic[4];
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u32 blkt_total;
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u32 blkt_inter_packet;
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u32 blkt_inter_packet_jumbo;
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char pque_magic[4];
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u8 pque_order;
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u8 pque_units;
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u16 reserved;
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u32 pque_priority[4];
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};
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/*TCP Segmentation Offload header*/
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struct qeth_hdr_ext_tso {
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__u16 hdr_tot_len;
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__u8 imb_hdr_no;
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__u8 reserved;
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__u8 hdr_type;
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__u8 hdr_version;
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__u16 hdr_len;
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__u32 payload_len;
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__u16 mss;
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__u16 dg_hdr_len;
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__u8 padding[16];
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} __attribute__ ((packed));
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struct qeth_hdr_tso {
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struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
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struct qeth_hdr_ext_tso ext;
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} __attribute__ ((packed));
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/* flags for qeth_hdr.flags */
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#define QETH_HDR_PASSTHRU 0x10
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#define QETH_HDR_IPV6 0x80
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#define QETH_HDR_CAST_MASK 0x07
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enum qeth_cast_flags {
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QETH_CAST_UNICAST = 0x06,
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QETH_CAST_MULTICAST = 0x04,
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QETH_CAST_BROADCAST = 0x05,
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QETH_CAST_ANYCAST = 0x07,
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QETH_CAST_NOCAST = 0x00,
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};
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enum qeth_layer2_frame_flags {
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QETH_LAYER2_FLAG_MULTICAST = 0x01,
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QETH_LAYER2_FLAG_BROADCAST = 0x02,
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QETH_LAYER2_FLAG_UNICAST = 0x04,
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QETH_LAYER2_FLAG_VLAN = 0x10,
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};
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enum qeth_header_ids {
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QETH_HEADER_TYPE_LAYER3 = 0x01,
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QETH_HEADER_TYPE_LAYER2 = 0x02,
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QETH_HEADER_TYPE_L3_TSO = 0x03,
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QETH_HEADER_TYPE_L2_TSO = 0x06,
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QETH_HEADER_MASK_INVAL = 0x80,
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};
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/* flags for qeth_hdr.ext_flags */
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#define QETH_HDR_EXT_VLAN_FRAME 0x01
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#define QETH_HDR_EXT_TOKEN_ID 0x02
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#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
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#define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
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#define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
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#define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
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#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
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static inline bool qeth_l2_same_vlan(struct qeth_hdr_layer2 *h1,
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struct qeth_hdr_layer2 *h2)
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{
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return !((h1->flags[2] ^ h2->flags[2]) & QETH_LAYER2_FLAG_VLAN) &&
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h1->vlan_id == h2->vlan_id;
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}
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static inline bool qeth_l3_iqd_same_vlan(struct qeth_hdr_layer3 *h1,
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struct qeth_hdr_layer3 *h2)
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{
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return !((h1->ext_flags ^ h2->ext_flags) & QETH_HDR_EXT_VLAN_FRAME) &&
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h1->vlan_id == h2->vlan_id;
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}
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static inline bool qeth_l3_same_next_hop(struct qeth_hdr_layer3 *h1,
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struct qeth_hdr_layer3 *h2)
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{
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return !((h1->flags ^ h2->flags) & QETH_HDR_IPV6) &&
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ipv6_addr_equal(&h1->next_hop.addr, &h2->next_hop.addr);
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}
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struct qeth_local_addr {
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struct hlist_node hnode;
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struct rcu_head rcu;
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struct in6_addr addr;
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};
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enum qeth_qdio_info_states {
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QETH_QDIO_UNINITIALIZED,
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QETH_QDIO_ALLOCATED,
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QETH_QDIO_ESTABLISHED,
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QETH_QDIO_CLEANING
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};
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struct qeth_buffer_pool_entry {
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struct list_head list;
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struct list_head init_list;
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struct page *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
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};
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struct qeth_qdio_buffer_pool {
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struct list_head entry_list;
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int buf_count;
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};
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struct qeth_qdio_buffer {
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struct qdio_buffer *buffer;
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/* the buffer pool entry currently associated to this buffer */
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struct qeth_buffer_pool_entry *pool_entry;
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struct sk_buff *rx_skb;
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};
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struct qeth_qdio_q {
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struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
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struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
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int next_buf_to_init;
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};
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enum qeth_qdio_out_buffer_state {
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/* Owned by driver, in order to be filled. */
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QETH_QDIO_BUF_EMPTY,
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/* Filled by driver; owned by hardware in order to be sent. */
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QETH_QDIO_BUF_PRIMED,
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};
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enum qeth_qaob_state {
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QETH_QAOB_ISSUED,
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QETH_QAOB_PENDING,
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QETH_QAOB_DONE,
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};
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struct qeth_qaob_priv1 {
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unsigned int state;
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u8 queue_no;
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};
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struct qeth_qdio_out_buffer {
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struct qdio_buffer *buffer;
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atomic_t state;
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int next_element_to_fill;
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unsigned int frames;
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unsigned int bytes;
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struct sk_buff_head skb_list;
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DECLARE_BITMAP(from_kmem_cache, QDIO_MAX_ELEMENTS_PER_BUFFER);
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struct list_head list_entry;
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struct qaob *aob;
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};
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struct qeth_card;
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#define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
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#define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
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#define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
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#define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
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struct qeth_card_stats {
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u64 rx_bufs;
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u64 rx_skb_csum;
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u64 rx_sg_skbs;
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u64 rx_sg_frags;
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u64 rx_sg_alloc_page;
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u64 rx_dropped_nomem;
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u64 rx_dropped_notsupp;
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u64 rx_dropped_runt;
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/* rtnl_link_stats64 */
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u64 rx_packets;
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u64 rx_bytes;
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u64 rx_multicast;
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u64 rx_length_errors;
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u64 rx_frame_errors;
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u64 rx_fifo_errors;
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};
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struct qeth_out_q_stats {
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u64 bufs;
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u64 bufs_pack;
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u64 buf_elements;
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u64 skbs_pack;
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u64 skbs_sg;
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u64 skbs_csum;
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u64 skbs_tso;
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u64 skbs_linearized;
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u64 skbs_linearized_fail;
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u64 tso_bytes;
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u64 packing_mode_switch;
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u64 stopped;
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u64 doorbell;
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u64 coal_frames;
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u64 completion_irq;
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u64 completion_yield;
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u64 completion_timer;
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/* rtnl_link_stats64 */
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u64 tx_packets;
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u64 tx_bytes;
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u64 tx_errors;
|
|
u64 tx_dropped;
|
|
};
|
|
|
|
#define QETH_TX_MAX_COALESCED_FRAMES 1
|
|
#define QETH_TX_COALESCE_USECS 25
|
|
#define QETH_TX_TIMER_USECS 500
|
|
|
|
struct qeth_qdio_out_q {
|
|
struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
|
|
struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
|
|
struct list_head pending_bufs;
|
|
struct qeth_out_q_stats stats;
|
|
spinlock_t lock;
|
|
unsigned int priority;
|
|
u8 next_buf_to_fill;
|
|
u8 max_elements;
|
|
u8 queue_no;
|
|
u8 do_pack;
|
|
struct qeth_card *card;
|
|
/*
|
|
* number of buffers that are currently filled (PRIMED)
|
|
* -> these buffers are hardware-owned
|
|
*/
|
|
atomic_t used_buffers;
|
|
/* indicates whether PCI flag must be set (or if one is outstanding) */
|
|
atomic_t set_pci_flags_count;
|
|
struct napi_struct napi;
|
|
struct timer_list timer;
|
|
struct qeth_hdr *prev_hdr;
|
|
unsigned int coalesced_frames;
|
|
u8 bulk_start;
|
|
u8 bulk_count;
|
|
u8 bulk_max;
|
|
|
|
unsigned int coalesce_usecs;
|
|
unsigned int max_coalesced_frames;
|
|
unsigned int rescan_usecs;
|
|
};
|
|
|
|
#define qeth_for_each_output_queue(card, q, i) \
|
|
for (i = 0; i < card->qdio.no_out_queues && \
|
|
(q = card->qdio.out_qs[i]); i++)
|
|
|
|
#define qeth_napi_to_out_queue(n) container_of(n, struct qeth_qdio_out_q, napi)
|
|
|
|
static inline void qeth_tx_arm_timer(struct qeth_qdio_out_q *queue,
|
|
unsigned long usecs)
|
|
{
|
|
timer_reduce(&queue->timer, usecs_to_jiffies(usecs) + jiffies);
|
|
}
|
|
|
|
static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
|
|
{
|
|
return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
|
|
}
|
|
|
|
static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
|
|
{
|
|
return atomic_read(&queue->used_buffers) == 0;
|
|
}
|
|
|
|
struct qeth_qdio_info {
|
|
atomic_t state;
|
|
/* input */
|
|
struct qeth_qdio_q *in_q;
|
|
struct qeth_qdio_q *c_q;
|
|
struct qeth_qdio_buffer_pool in_buf_pool;
|
|
struct qeth_qdio_buffer_pool init_pool;
|
|
int in_buf_size;
|
|
|
|
/* output */
|
|
unsigned int no_out_queues;
|
|
struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];
|
|
|
|
/* priority queueing */
|
|
int do_prio_queueing;
|
|
int default_out_queue;
|
|
};
|
|
|
|
/**
|
|
* channel state machine
|
|
*/
|
|
enum qeth_channel_states {
|
|
CH_STATE_UP,
|
|
CH_STATE_DOWN,
|
|
CH_STATE_HALTED,
|
|
CH_STATE_STOPPED,
|
|
};
|
|
/**
|
|
* card state machine
|
|
*/
|
|
enum qeth_card_states {
|
|
CARD_STATE_DOWN,
|
|
CARD_STATE_SOFTSETUP,
|
|
};
|
|
|
|
/**
|
|
* Protocol versions
|
|
*/
|
|
enum qeth_prot_versions {
|
|
QETH_PROT_NONE = 0x0000,
|
|
QETH_PROT_IPV4 = 0x0004,
|
|
QETH_PROT_IPV6 = 0x0006,
|
|
};
|
|
|
|
enum qeth_cq {
|
|
QETH_CQ_DISABLED = 0,
|
|
QETH_CQ_ENABLED = 1,
|
|
QETH_CQ_NOTAVAILABLE = 2,
|
|
};
|
|
|
|
struct qeth_ipato {
|
|
bool enabled;
|
|
bool invert4;
|
|
bool invert6;
|
|
struct list_head entries;
|
|
};
|
|
|
|
struct qeth_channel {
|
|
struct ccw_device *ccwdev;
|
|
struct qeth_cmd_buffer *active_cmd;
|
|
enum qeth_channel_states state;
|
|
};
|
|
|
|
struct qeth_reply {
|
|
int (*callback)(struct qeth_card *card, struct qeth_reply *reply,
|
|
unsigned long data);
|
|
void *param;
|
|
};
|
|
|
|
struct qeth_cmd_buffer {
|
|
struct list_head list_entry;
|
|
struct completion done;
|
|
spinlock_t lock;
|
|
unsigned int length;
|
|
refcount_t ref_count;
|
|
struct qeth_channel *channel;
|
|
struct qeth_reply reply;
|
|
long timeout;
|
|
unsigned char *data;
|
|
void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
|
|
bool (*match)(struct qeth_cmd_buffer *iob,
|
|
struct qeth_cmd_buffer *reply);
|
|
void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
|
|
unsigned int data_length);
|
|
int rc;
|
|
};
|
|
|
|
static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
|
|
{
|
|
refcount_inc(&iob->ref_count);
|
|
}
|
|
|
|
static inline struct qeth_ipa_cmd *__ipa_reply(struct qeth_cmd_buffer *iob)
|
|
{
|
|
if (!IS_IPA(iob->data))
|
|
return NULL;
|
|
|
|
return (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
|
|
}
|
|
|
|
static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
|
|
{
|
|
return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
|
|
}
|
|
|
|
static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
|
|
{
|
|
return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
|
|
}
|
|
|
|
/**
|
|
* OSA card related definitions
|
|
*/
|
|
struct qeth_token {
|
|
__u32 issuer_rm_w;
|
|
__u32 issuer_rm_r;
|
|
__u32 cm_filter_w;
|
|
__u32 cm_filter_r;
|
|
__u32 cm_connection_w;
|
|
__u32 cm_connection_r;
|
|
__u32 ulp_filter_w;
|
|
__u32 ulp_filter_r;
|
|
__u32 ulp_connection_w;
|
|
__u32 ulp_connection_r;
|
|
};
|
|
|
|
struct qeth_seqno {
|
|
__u32 trans_hdr;
|
|
__u32 pdu_hdr;
|
|
__u32 pdu_hdr_ack;
|
|
__u16 ipa;
|
|
};
|
|
|
|
struct qeth_card_blkt {
|
|
int time_total;
|
|
int inter_packet;
|
|
int inter_packet_jumbo;
|
|
};
|
|
|
|
enum qeth_pnso_mode {
|
|
QETH_PNSO_NONE,
|
|
QETH_PNSO_BRIDGEPORT,
|
|
QETH_PNSO_ADDR_INFO,
|
|
};
|
|
|
|
enum qeth_link_mode {
|
|
QETH_LINK_MODE_UNKNOWN,
|
|
QETH_LINK_MODE_FIBRE_SHORT,
|
|
QETH_LINK_MODE_FIBRE_LONG,
|
|
};
|
|
|
|
struct qeth_link_info {
|
|
u32 speed;
|
|
u8 duplex;
|
|
u8 port;
|
|
enum qeth_link_mode link_mode;
|
|
};
|
|
|
|
#define QETH_BROADCAST_WITH_ECHO 0x01
|
|
#define QETH_BROADCAST_WITHOUT_ECHO 0x02
|
|
struct qeth_card_info {
|
|
unsigned short unit_addr2;
|
|
unsigned short cula;
|
|
__u16 func_level;
|
|
char mcl_level[QETH_MCL_LENGTH + 1];
|
|
/* doubleword below corresponds to net_if_token */
|
|
u16 ddev_devno;
|
|
u8 cssid;
|
|
u8 iid;
|
|
u8 ssid;
|
|
u8 chpid;
|
|
u16 chid;
|
|
u8 ids_valid:1; /* cssid,iid,chid */
|
|
u8 dev_addr_is_registered:1;
|
|
u8 open_when_online:1;
|
|
u8 promisc_mode:1;
|
|
u8 use_v1_blkt:1;
|
|
u8 is_vm_nic:1;
|
|
/* no bitfield, we take a pointer on these two: */
|
|
u8 has_lp2lp_cso_v6;
|
|
u8 has_lp2lp_cso_v4;
|
|
enum qeth_pnso_mode pnso_mode;
|
|
enum qeth_card_types type;
|
|
enum qeth_link_types link_type;
|
|
int broadcast_capable;
|
|
bool layer_enforced;
|
|
struct qeth_card_blkt blkt;
|
|
__u32 diagass_support;
|
|
__u32 hwtrap;
|
|
struct qeth_link_info link_info;
|
|
};
|
|
|
|
enum qeth_discipline_id {
|
|
QETH_DISCIPLINE_UNDETERMINED = -1,
|
|
QETH_DISCIPLINE_LAYER3 = 0,
|
|
QETH_DISCIPLINE_LAYER2 = 1,
|
|
};
|
|
|
|
struct qeth_card_options {
|
|
struct qeth_ipa_caps ipa4;
|
|
struct qeth_ipa_caps ipa6;
|
|
struct qeth_routing_info route4;
|
|
struct qeth_routing_info route6;
|
|
struct qeth_ipa_caps adp; /* Adapter parameters */
|
|
struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
|
|
struct qeth_vnicc_info vnicc; /* VNICC options */
|
|
enum qeth_discipline_id layer;
|
|
enum qeth_ipa_isolation_modes isolation;
|
|
int sniffer;
|
|
enum qeth_cq cq;
|
|
char hsuid[9];
|
|
};
|
|
|
|
#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
|
|
#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
|
|
|
|
/*
|
|
* thread bits for qeth_card thread masks
|
|
*/
|
|
enum qeth_threads {
|
|
QETH_RECOVER_THREAD = 1,
|
|
};
|
|
|
|
struct qeth_discipline {
|
|
int (*setup) (struct ccwgroup_device *);
|
|
void (*remove) (struct ccwgroup_device *);
|
|
int (*set_online)(struct qeth_card *card, bool carrier_ok);
|
|
void (*set_offline)(struct qeth_card *card);
|
|
int (*control_event_handler)(struct qeth_card *card,
|
|
struct qeth_ipa_cmd *cmd);
|
|
};
|
|
|
|
enum qeth_addr_disposition {
|
|
QETH_DISP_ADDR_DELETE = 0,
|
|
QETH_DISP_ADDR_DO_NOTHING = 1,
|
|
QETH_DISP_ADDR_ADD = 2,
|
|
};
|
|
|
|
struct qeth_rx {
|
|
int b_count;
|
|
int b_index;
|
|
u8 buf_element;
|
|
int e_offset;
|
|
int qdio_err;
|
|
u8 bufs_refill;
|
|
};
|
|
|
|
struct qeth_switch_info {
|
|
__u32 capabilities;
|
|
__u32 settings;
|
|
};
|
|
|
|
struct qeth_priv {
|
|
unsigned int rx_copybreak;
|
|
unsigned int tx_wanted_queues;
|
|
u32 brport_hw_features;
|
|
u32 brport_features;
|
|
};
|
|
|
|
struct qeth_card {
|
|
enum qeth_card_states state;
|
|
spinlock_t lock;
|
|
struct ccwgroup_device *gdev;
|
|
struct qeth_cmd_buffer *read_cmd;
|
|
struct qeth_channel read;
|
|
struct qeth_channel write;
|
|
struct qeth_channel data;
|
|
|
|
struct net_device *dev;
|
|
struct dentry *debugfs;
|
|
struct qeth_card_stats stats;
|
|
struct qeth_card_info info;
|
|
struct qeth_token token;
|
|
struct qeth_seqno seqno;
|
|
struct qeth_card_options options;
|
|
|
|
struct workqueue_struct *event_wq;
|
|
struct workqueue_struct *cmd_wq;
|
|
wait_queue_head_t wait_q;
|
|
|
|
struct mutex ip_lock;
|
|
/* protected by ip_lock: */
|
|
DECLARE_HASHTABLE(ip_htable, 4);
|
|
struct qeth_ipato ipato;
|
|
|
|
DECLARE_HASHTABLE(local_addrs4, 4);
|
|
DECLARE_HASHTABLE(local_addrs6, 4);
|
|
spinlock_t local_addrs4_lock;
|
|
spinlock_t local_addrs6_lock;
|
|
DECLARE_HASHTABLE(rx_mode_addrs, 4);
|
|
struct work_struct rx_mode_work;
|
|
struct work_struct kernel_thread_starter;
|
|
spinlock_t thread_mask_lock;
|
|
unsigned long thread_start_mask;
|
|
unsigned long thread_allowed_mask;
|
|
unsigned long thread_running_mask;
|
|
struct list_head cmd_waiter_list;
|
|
/* QDIO buffer handling */
|
|
struct qeth_qdio_info qdio;
|
|
int read_or_write_problem;
|
|
const struct qeth_discipline *discipline;
|
|
atomic_t force_alloc_skb;
|
|
struct service_level qeth_service_level;
|
|
struct qdio_ssqd_desc ssqd;
|
|
debug_info_t *debug;
|
|
struct mutex sbp_lock;
|
|
struct mutex conf_mutex;
|
|
struct mutex discipline_mutex;
|
|
struct napi_struct napi;
|
|
struct qeth_rx rx;
|
|
struct delayed_work buffer_reclaim_work;
|
|
};
|
|
|
|
static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
|
|
{
|
|
return card->state == CARD_STATE_SOFTSETUP;
|
|
}
|
|
|
|
static inline bool qeth_use_tx_irqs(struct qeth_card *card)
|
|
{
|
|
return !IS_IQD(card);
|
|
}
|
|
|
|
static inline void qeth_unlock_channel(struct qeth_card *card,
|
|
struct qeth_channel *channel)
|
|
{
|
|
xchg(&channel->active_cmd, NULL);
|
|
wake_up(&card->wait_q);
|
|
}
|
|
|
|
static inline bool qeth_trylock_channel(struct qeth_channel *channel,
|
|
struct qeth_cmd_buffer *cmd)
|
|
{
|
|
return cmpxchg(&channel->active_cmd, NULL, cmd) == NULL;
|
|
}
|
|
|
|
struct qeth_trap_id {
|
|
__u16 lparnr;
|
|
char vmname[8];
|
|
__u8 chpid;
|
|
__u8 ssid;
|
|
__u16 devno;
|
|
} __packed;
|
|
|
|
static inline bool qeth_uses_tx_prio_queueing(struct qeth_card *card)
|
|
{
|
|
return card->qdio.do_prio_queueing != QETH_NO_PRIO_QUEUEING;
|
|
}
|
|
|
|
static inline unsigned int qeth_tx_actual_queues(struct qeth_card *card)
|
|
{
|
|
struct qeth_priv *priv = netdev_priv(card->dev);
|
|
|
|
if (qeth_uses_tx_prio_queueing(card))
|
|
return min(card->dev->num_tx_queues, card->qdio.no_out_queues);
|
|
|
|
return min(priv->tx_wanted_queues, card->qdio.no_out_queues);
|
|
}
|
|
|
|
static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
|
|
{
|
|
if (txq == QETH_IQD_MCAST_TXQ)
|
|
return dev->num_tx_queues - 1;
|
|
if (txq == dev->num_tx_queues - 1)
|
|
return QETH_IQD_MCAST_TXQ;
|
|
return txq;
|
|
}
|
|
|
|
static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
|
|
struct qeth_qdio_out_q *queue)
|
|
{
|
|
return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
|
|
QETH_IQD_MCAST_TXQ;
|
|
}
|
|
|
|
static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
|
|
unsigned int elements)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < elements; i++)
|
|
memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
|
|
buf->element[14].sflags = 0;
|
|
buf->element[15].sflags = 0;
|
|
}
|
|
|
|
/**
|
|
* qeth_get_elements_for_range() - find number of SBALEs to cover range.
|
|
* @start: Start of the address range.
|
|
* @end: Address after the end of the range.
|
|
*
|
|
* Returns the number of pages, and thus QDIO buffer elements, needed to cover
|
|
* the specified address range.
|
|
*/
|
|
static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
|
|
{
|
|
return PFN_UP(end) - PFN_DOWN(start);
|
|
}
|
|
|
|
static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
|
|
{
|
|
u8 *addr = eth_hdr(skb)->h_dest;
|
|
|
|
if (is_multicast_ether_addr(addr))
|
|
return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
|
|
RTN_MULTICAST;
|
|
return RTN_UNICAST;
|
|
}
|
|
|
|
static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb,
|
|
__be16 proto)
|
|
{
|
|
struct dst_entry *dst = skb_dst(skb);
|
|
struct rt6_info *rt;
|
|
|
|
rt = (struct rt6_info *) dst;
|
|
if (dst) {
|
|
if (proto == htons(ETH_P_IPV6))
|
|
dst = dst_check(dst, rt6_get_cookie(rt));
|
|
else
|
|
dst = dst_check(dst, 0);
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
|
|
static inline __be32 qeth_next_hop_v4_rcu(struct sk_buff *skb,
|
|
struct dst_entry *dst)
|
|
{
|
|
struct rtable *rt = (struct rtable *) dst;
|
|
|
|
return (rt) ? rt_nexthop(rt, ip_hdr(skb)->daddr) : ip_hdr(skb)->daddr;
|
|
}
|
|
|
|
static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb,
|
|
struct dst_entry *dst)
|
|
{
|
|
struct rt6_info *rt = (struct rt6_info *) dst;
|
|
|
|
if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
|
|
return &rt->rt6i_gateway;
|
|
else
|
|
return &ipv6_hdr(skb)->daddr;
|
|
}
|
|
|
|
static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, __be16 proto)
|
|
{
|
|
*flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
|
|
if ((proto == htons(ETH_P_IP) && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
|
|
(proto == htons(ETH_P_IPV6) && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
|
|
*flags |= QETH_HDR_EXT_UDP;
|
|
}
|
|
|
|
static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
|
|
struct qeth_buffer_pool_entry *entry)
|
|
{
|
|
list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
|
|
}
|
|
|
|
static inline int qeth_is_diagass_supported(struct qeth_card *card,
|
|
enum qeth_diags_cmds cmd)
|
|
{
|
|
return card->info.diagass_support & (__u32)cmd;
|
|
}
|
|
|
|
int qeth_send_simple_setassparms_prot(struct qeth_card *card,
|
|
enum qeth_ipa_funcs ipa_func,
|
|
u16 cmd_code, u32 *data,
|
|
enum qeth_prot_versions prot);
|
|
/* IPv4 variant */
|
|
static inline int qeth_send_simple_setassparms(struct qeth_card *card,
|
|
enum qeth_ipa_funcs ipa_func,
|
|
u16 cmd_code, u32 *data)
|
|
{
|
|
return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
|
|
data, QETH_PROT_IPV4);
|
|
}
|
|
|
|
static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
|
|
enum qeth_ipa_funcs ipa_func,
|
|
u16 cmd_code, u32 *data)
|
|
{
|
|
return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
|
|
data, QETH_PROT_IPV6);
|
|
}
|
|
|
|
extern const struct qeth_discipline qeth_l2_discipline;
|
|
extern const struct qeth_discipline qeth_l3_discipline;
|
|
extern const struct ethtool_ops qeth_ethtool_ops;
|
|
extern const struct attribute_group *qeth_dev_groups[];
|
|
|
|
const char *qeth_get_cardname_short(struct qeth_card *);
|
|
int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
|
|
int qeth_setup_discipline(struct qeth_card *card, enum qeth_discipline_id disc);
|
|
void qeth_remove_discipline(struct qeth_card *card);
|
|
|
|
/* exports for qeth discipline device drivers */
|
|
extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
|
|
|
|
struct net_device *qeth_clone_netdev(struct net_device *orig);
|
|
void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
|
|
int clear_start_mask);
|
|
int qeth_threads_running(struct qeth_card *, unsigned long);
|
|
int qeth_set_offline(struct qeth_card *card, const struct qeth_discipline *disc,
|
|
bool resetting);
|
|
|
|
int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
|
|
int (*reply_cb)
|
|
(struct qeth_card *, struct qeth_reply *, unsigned long),
|
|
void *);
|
|
struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
|
|
enum qeth_ipa_cmds cmd_code,
|
|
enum qeth_prot_versions prot,
|
|
unsigned int data_length);
|
|
struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
|
|
enum qeth_ipa_funcs ipa_func,
|
|
u16 cmd_code,
|
|
unsigned int data_length,
|
|
enum qeth_prot_versions prot);
|
|
struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
|
|
enum qeth_diags_cmds sub_cmd,
|
|
unsigned int data_length);
|
|
|
|
int qeth_schedule_recovery(struct qeth_card *card);
|
|
int qeth_poll(struct napi_struct *napi, int budget);
|
|
void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable);
|
|
int qeth_setadpparms_change_macaddr(struct qeth_card *);
|
|
void qeth_tx_timeout(struct net_device *, unsigned int txqueue);
|
|
int qeth_query_switch_attributes(struct qeth_card *card,
|
|
struct qeth_switch_info *sw_info);
|
|
int qeth_query_card_info(struct qeth_card *card,
|
|
struct qeth_link_info *link_info);
|
|
int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
|
|
enum qeth_ipa_isolation_modes mode);
|
|
|
|
int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
|
|
int qeth_siocdevprivate(struct net_device *dev, struct ifreq *rq,
|
|
void __user *data, int cmd);
|
|
__printf(3, 4)
|
|
void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
|
|
int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
|
|
int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
|
|
int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
|
|
int qeth_set_features(struct net_device *, netdev_features_t);
|
|
void qeth_enable_hw_features(struct net_device *dev);
|
|
netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
|
|
netdev_features_t qeth_features_check(struct sk_buff *skb,
|
|
struct net_device *dev,
|
|
netdev_features_t features);
|
|
void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
|
|
int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count);
|
|
u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
|
|
u8 cast_type, struct net_device *sb_dev);
|
|
u16 qeth_osa_select_queue(struct net_device *dev, struct sk_buff *skb,
|
|
struct net_device *sb_dev);
|
|
int qeth_open(struct net_device *dev);
|
|
int qeth_stop(struct net_device *dev);
|
|
|
|
int qeth_vm_request_mac(struct qeth_card *card);
|
|
int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
|
|
struct qeth_qdio_out_q *queue, __be16 proto,
|
|
void (*fill_header)(struct qeth_qdio_out_q *queue,
|
|
struct qeth_hdr *hdr, struct sk_buff *skb,
|
|
__be16 proto, unsigned int data_len));
|
|
|
|
#endif /* __QETH_CORE_H__ */
|