1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright IBM Corp. 2007
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
10 #ifndef __QETH_CORE_H__
11 #define __QETH_CORE_H__
13 #include <linux/completion.h>
14 #include <linux/debugfs.h>
16 #include <linux/if_arp.h>
17 #include <linux/etherdevice.h>
18 #include <linux/if_vlan.h>
19 #include <linux/ctype.h>
20 #include <linux/in6.h>
21 #include <linux/bitops.h>
22 #include <linux/seq_file.h>
23 #include <linux/hashtable.h>
25 #include <linux/rcupdate.h>
26 #include <linux/refcount.h>
27 #include <linux/timer.h>
28 #include <linux/types.h>
29 #include <linux/wait.h>
30 #include <linux/workqueue.h>
33 #include <net/ip6_fib.h>
35 #include <net/if_inet6.h>
36 #include <net/addrconf.h>
37 #include <net/route.h>
38 #include <net/sch_generic.h>
41 #include <asm/debug.h>
43 #include <asm/ccwdev.h>
44 #include <asm/ccwgroup.h>
45 #include <asm/sysinfo.h>
47 #include <uapi/linux/if_link.h>
49 #include "qeth_core_mpc.h"
52 * Debug Facility stuff
58 QETH_DBF_INFOS /* must be last element */
61 struct qeth_dbf_info {
62 char name[DEBUG_MAX_NAME_LEN];
67 struct debug_view *view;
71 #define QETH_DBF_CTRL_LEN 256U
73 #define QETH_DBF_TEXT(name, level, text) \
74 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
76 #define QETH_DBF_HEX(name, level, addr, len) \
77 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
79 #define QETH_DBF_MESSAGE(level, text...) \
80 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
82 #define QETH_DBF_TEXT_(name, level, text...) \
83 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
85 #define QETH_CARD_TEXT(card, level, text) \
86 debug_text_event(card->debug, level, text)
88 #define QETH_CARD_HEX(card, level, addr, len) \
89 debug_event(card->debug, level, (void *)(addr), len)
91 #define QETH_CARD_MESSAGE(card, text...) \
92 debug_sprintf_event(card->debug, level, text)
94 #define QETH_CARD_TEXT_(card, level, text...) \
95 qeth_dbf_longtext(card->debug, level, text)
97 #define SENSE_COMMAND_REJECT_BYTE 0
98 #define SENSE_COMMAND_REJECT_FLAG 0x80
99 #define SENSE_RESETTING_EVENT_BYTE 1
100 #define SENSE_RESETTING_EVENT_FLAG 0x80
102 static inline u32 qeth_get_device_id(struct ccw_device *cdev)
104 struct ccw_dev_id dev_id;
107 ccw_device_get_id(cdev, &dev_id);
109 id |= (u32) (dev_id.ssid << 16);
115 * Common IO related definitions
117 #define CARD_RDEV(card) card->read.ccwdev
118 #define CARD_WDEV(card) card->write.ccwdev
119 #define CARD_DDEV(card) card->data.ccwdev
120 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
121 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
122 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
123 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
124 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev))
125 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card)))
128 struct qeth_routing_info {
129 enum qeth_routing_types type;
132 /* SETBRIDGEPORT stuff */
133 enum qeth_sbp_roles {
134 QETH_SBP_ROLE_NONE = 0,
135 QETH_SBP_ROLE_PRIMARY = 1,
136 QETH_SBP_ROLE_SECONDARY = 2,
139 enum qeth_sbp_states {
140 QETH_SBP_STATE_INACTIVE = 0,
141 QETH_SBP_STATE_STANDBY = 1,
142 QETH_SBP_STATE_ACTIVE = 2,
145 #define QETH_SBP_HOST_NOTIFICATION 1
147 struct qeth_sbp_info {
148 __u32 supported_funcs;
149 enum qeth_sbp_roles role;
150 __u32 hostnotification:1;
151 __u32 reflect_promisc:1;
152 __u32 reflect_promisc_primary:1;
155 struct qeth_vnicc_info {
156 /* supported/currently configured VNICCs; updated in IPA exchanges */
159 /* supported commands: bitmasks which VNICCs support respective cmd */
161 u32 getset_timeout_sup;
162 /* timeout value for the learning characteristic */
163 u32 learning_timeout;
164 /* characteristics wanted/configured by user */
166 /* has user explicitly enabled rx_bcast while online? */
167 bool rx_bcast_enabled;
170 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101
171 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108
173 #define QETH_BUFSIZE 4096
174 #define CCW_CMD_WRITE 0x01
175 #define CCW_CMD_READ 0x02
180 #define QETH_TX_TIMEOUT (100 * HZ)
181 #define QETH_RCD_TIMEOUT (60 * HZ)
182 #define QETH_RECLAIM_WORK_TIME HZ
183 #define QETH_MAX_PORTNO 15
185 /*****************************************************************************/
186 /* QDIO queue and buffer handling */
187 /*****************************************************************************/
188 #define QETH_MAX_OUT_QUEUES 4
189 #define QETH_IQD_MIN_TXQ 2 /* One for ucast, one for mcast. */
190 #define QETH_IQD_MCAST_TXQ 0
191 #define QETH_IQD_MIN_UCAST_TXQ 1
193 #define QETH_MAX_IN_QUEUES 2
194 #define QETH_RX_COPYBREAK (PAGE_SIZE >> 1)
195 #define QETH_IN_BUF_SIZE_DEFAULT 65536
196 #define QETH_IN_BUF_COUNT_DEFAULT 64
197 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
198 #define QETH_IN_BUF_COUNT_MIN 8U
199 #define QETH_IN_BUF_COUNT_MAX 128U
200 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
201 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
202 ((card)->qdio.in_buf_pool.buf_count / 2)
204 /* buffers we have to be behind before we get a PCI */
205 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
206 /*enqueued free buffers left before we get a PCI*/
207 #define QETH_PCI_THRESHOLD_B(card) 0
208 /*not used unless the microcode gets patched*/
209 #define QETH_PCI_TIMER_VALUE(card) 3
211 /* priority queing */
212 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
213 #define QETH_DEFAULT_QUEUE 2
214 #define QETH_NO_PRIO_QUEUEING 0
215 #define QETH_PRIO_Q_ING_PREC 1
216 #define QETH_PRIO_Q_ING_TOS 2
217 #define QETH_PRIO_Q_ING_SKB 3
218 #define QETH_PRIO_Q_ING_VLAN 4
219 #define QETH_PRIO_Q_ING_FIXED 5
222 #define QETH_LOW_WATERMARK_PACK 2
223 #define QETH_HIGH_WATERMARK_PACK 5
224 #define QETH_WATERMARK_PACK_FUZZ 1
226 struct qeth_hdr_layer3 {
229 __u16 inbound_checksum; /*TSO:__u16 seqno */
230 __u32 token; /*TSO: __u32 reserved */
238 struct in6_addr addr;
250 struct qeth_hdr_layer2 {
260 } __attribute__ ((packed));
262 struct qeth_hdr_osn {
271 } __attribute__ ((packed));
275 struct qeth_hdr_layer2 l2;
276 struct qeth_hdr_layer3 l3;
277 struct qeth_hdr_osn osn;
279 } __attribute__ ((packed));
281 #define QETH_QIB_PQUE_ORDER_RR 0
282 #define QETH_QIB_PQUE_UNITS_SBAL 2
283 #define QETH_QIB_PQUE_PRIO_DEFAULT 4
285 struct qeth_qib_parms {
292 u32 blkt_inter_packet;
293 u32 blkt_inter_packet_jumbo;
298 u32 pque_priority[4];
301 /*TCP Segmentation Offload header*/
302 struct qeth_hdr_ext_tso {
313 } __attribute__ ((packed));
315 struct qeth_hdr_tso {
316 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
317 struct qeth_hdr_ext_tso ext;
318 } __attribute__ ((packed));
321 /* flags for qeth_hdr.flags */
322 #define QETH_HDR_PASSTHRU 0x10
323 #define QETH_HDR_IPV6 0x80
324 #define QETH_HDR_CAST_MASK 0x07
325 enum qeth_cast_flags {
326 QETH_CAST_UNICAST = 0x06,
327 QETH_CAST_MULTICAST = 0x04,
328 QETH_CAST_BROADCAST = 0x05,
329 QETH_CAST_ANYCAST = 0x07,
330 QETH_CAST_NOCAST = 0x00,
333 enum qeth_layer2_frame_flags {
334 QETH_LAYER2_FLAG_MULTICAST = 0x01,
335 QETH_LAYER2_FLAG_BROADCAST = 0x02,
336 QETH_LAYER2_FLAG_UNICAST = 0x04,
337 QETH_LAYER2_FLAG_VLAN = 0x10,
340 enum qeth_header_ids {
341 QETH_HEADER_TYPE_LAYER3 = 0x01,
342 QETH_HEADER_TYPE_LAYER2 = 0x02,
343 QETH_HEADER_TYPE_L3_TSO = 0x03,
344 QETH_HEADER_TYPE_OSN = 0x04,
345 QETH_HEADER_TYPE_L2_TSO = 0x06,
346 QETH_HEADER_MASK_INVAL = 0x80,
348 /* flags for qeth_hdr.ext_flags */
349 #define QETH_HDR_EXT_VLAN_FRAME 0x01
350 #define QETH_HDR_EXT_TOKEN_ID 0x02
351 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
352 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
353 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
354 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
355 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
357 static inline bool qeth_l2_same_vlan(struct qeth_hdr_layer2 *h1,
358 struct qeth_hdr_layer2 *h2)
360 return !((h1->flags[2] ^ h2->flags[2]) & QETH_LAYER2_FLAG_VLAN) &&
361 h1->vlan_id == h2->vlan_id;
364 static inline bool qeth_l3_iqd_same_vlan(struct qeth_hdr_layer3 *h1,
365 struct qeth_hdr_layer3 *h2)
367 return !((h1->ext_flags ^ h2->ext_flags) & QETH_HDR_EXT_VLAN_FRAME) &&
368 h1->vlan_id == h2->vlan_id;
371 static inline bool qeth_l3_same_next_hop(struct qeth_hdr_layer3 *h1,
372 struct qeth_hdr_layer3 *h2)
374 return !((h1->flags ^ h2->flags) & QETH_HDR_IPV6) &&
375 ipv6_addr_equal(&h1->next_hop.addr, &h2->next_hop.addr);
378 struct qeth_local_addr {
379 struct hlist_node hnode;
381 struct in6_addr addr;
384 enum qeth_qdio_info_states {
385 QETH_QDIO_UNINITIALIZED,
387 QETH_QDIO_ESTABLISHED,
391 struct qeth_buffer_pool_entry {
392 struct list_head list;
393 struct list_head init_list;
394 struct page *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
397 struct qeth_qdio_buffer_pool {
398 struct list_head entry_list;
402 struct qeth_qdio_buffer {
403 struct qdio_buffer *buffer;
404 /* the buffer pool entry currently associated to this buffer */
405 struct qeth_buffer_pool_entry *pool_entry;
406 struct sk_buff *rx_skb;
410 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
411 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
412 int next_buf_to_init;
415 enum qeth_qdio_out_buffer_state {
416 /* Owned by driver, in order to be filled. */
418 /* Filled by driver; owned by hardware in order to be sent. */
419 QETH_QDIO_BUF_PRIMED,
420 /* Discovered by the TX completion code: */
421 QETH_QDIO_BUF_PENDING,
422 /* Finished by the TX completion code: */
423 QETH_QDIO_BUF_NEED_QAOB,
424 /* Received QAOB notification on CQ: */
425 QETH_QDIO_BUF_QAOB_OK,
426 QETH_QDIO_BUF_QAOB_ERROR,
429 struct qeth_qdio_out_buffer {
430 struct qdio_buffer *buffer;
432 int next_element_to_fill;
435 struct sk_buff_head skb_list;
436 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
438 struct qeth_qdio_out_q *q;
439 struct list_head list_entry;
444 #define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
445 #define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
447 #define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
448 #define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
450 struct qeth_card_stats {
455 u64 rx_sg_alloc_page;
457 u64 rx_dropped_nomem;
458 u64 rx_dropped_notsupp;
461 /* rtnl_link_stats64 */
465 u64 rx_length_errors;
470 struct qeth_out_q_stats {
479 u64 skbs_linearized_fail;
481 u64 packing_mode_switch;
485 u64 completion_yield;
486 u64 completion_timer;
488 /* rtnl_link_stats64 */
495 #define QETH_TX_MAX_COALESCED_FRAMES 1
496 #define QETH_TX_COALESCE_USECS 25
497 #define QETH_TX_TIMER_USECS 500
499 struct qeth_qdio_out_q {
500 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
501 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
502 struct qdio_outbuf_state *bufstates; /* convenience pointer */
503 struct list_head pending_bufs;
504 struct qeth_out_q_stats stats;
506 unsigned int priority;
511 struct qeth_card *card;
513 * number of buffers that are currently filled (PRIMED)
514 * -> these buffers are hardware-owned
516 atomic_t used_buffers;
517 /* indicates whether PCI flag must be set (or if one is outstanding) */
518 atomic_t set_pci_flags_count;
519 struct napi_struct napi;
520 struct timer_list timer;
521 struct qeth_hdr *prev_hdr;
522 unsigned int coalesced_frames;
527 unsigned int coalesce_usecs;
528 unsigned int max_coalesced_frames;
531 #define qeth_for_each_output_queue(card, q, i) \
532 for (i = 0; i < card->qdio.no_out_queues && \
533 (q = card->qdio.out_qs[i]); i++)
535 #define qeth_napi_to_out_queue(n) container_of(n, struct qeth_qdio_out_q, napi)
537 static inline void qeth_tx_arm_timer(struct qeth_qdio_out_q *queue,
540 timer_reduce(&queue->timer, usecs_to_jiffies(usecs) + jiffies);
543 static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
545 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
548 static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
550 return atomic_read(&queue->used_buffers) == 0;
553 struct qeth_qdio_info {
557 struct qeth_qdio_q *in_q;
558 struct qeth_qdio_q *c_q;
559 struct qeth_qdio_buffer_pool in_buf_pool;
560 struct qeth_qdio_buffer_pool init_pool;
564 unsigned int no_out_queues;
565 struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];
566 struct qdio_outbuf_state *out_bufstates;
568 /* priority queueing */
569 int do_prio_queueing;
570 int default_out_queue;
574 * channel state machine
576 enum qeth_channel_states {
585 enum qeth_card_states {
587 CARD_STATE_SOFTSETUP,
593 enum qeth_prot_versions {
594 QETH_PROT_NONE = 0x0000,
595 QETH_PROT_IPV4 = 0x0004,
596 QETH_PROT_IPV6 = 0x0006,
600 QETH_CQ_DISABLED = 0,
602 QETH_CQ_NOTAVAILABLE = 2,
609 struct list_head entries;
612 struct qeth_channel {
613 struct ccw_device *ccwdev;
614 struct qeth_cmd_buffer *active_cmd;
615 enum qeth_channel_states state;
616 atomic_t irq_pending;
620 int (*callback)(struct qeth_card *card, struct qeth_reply *reply,
625 struct qeth_cmd_buffer {
626 struct list_head list;
627 struct completion done;
630 refcount_t ref_count;
631 struct qeth_channel *channel;
632 struct qeth_reply reply;
635 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
636 bool (*match)(struct qeth_cmd_buffer *iob,
637 struct qeth_cmd_buffer *reply);
638 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
639 unsigned int data_length);
643 static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
645 refcount_inc(&iob->ref_count);
648 static inline struct qeth_ipa_cmd *__ipa_reply(struct qeth_cmd_buffer *iob)
650 if (!IS_IPA(iob->data))
653 return (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
656 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
658 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
661 static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
663 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
666 static inline bool qeth_trylock_channel(struct qeth_channel *channel)
668 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0;
672 * OSA card related definitions
679 __u32 cm_connection_w;
680 __u32 cm_connection_r;
683 __u32 ulp_connection_w;
684 __u32 ulp_connection_r;
694 struct qeth_card_blkt {
697 int inter_packet_jumbo;
700 enum qeth_pnso_mode {
702 QETH_PNSO_BRIDGEPORT,
706 #define QETH_BROADCAST_WITH_ECHO 0x01
707 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
708 struct qeth_card_info {
709 unsigned short unit_addr2;
712 char mcl_level[QETH_MCL_LENGTH + 1];
713 /* doubleword below corresponds to net_if_token */
720 u8 ids_valid:1; /* cssid,iid,chid */
721 u8 dev_addr_is_registered:1;
725 /* no bitfield, we take a pointer on these two: */
728 enum qeth_pnso_mode pnso_mode;
729 enum qeth_card_types type;
730 enum qeth_link_types link_type;
731 int broadcast_capable;
733 struct qeth_card_blkt blkt;
734 __u32 diagass_support;
738 enum qeth_discipline_id {
739 QETH_DISCIPLINE_UNDETERMINED = -1,
740 QETH_DISCIPLINE_LAYER3 = 0,
741 QETH_DISCIPLINE_LAYER2 = 1,
744 struct qeth_card_options {
745 struct qeth_ipa_caps ipa4;
746 struct qeth_ipa_caps ipa6;
747 struct qeth_routing_info route4;
748 struct qeth_routing_info route6;
749 struct qeth_ipa_caps adp; /* Adapter parameters */
750 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
751 struct qeth_vnicc_info vnicc; /* VNICC options */
752 enum qeth_discipline_id layer;
753 enum qeth_ipa_isolation_modes isolation;
759 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
760 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
763 * thread bits for qeth_card thread masks
766 QETH_RECOVER_THREAD = 1,
769 struct qeth_osn_info {
770 int (*assist_cb)(struct net_device *dev, void *data);
771 int (*data_cb)(struct sk_buff *skb);
774 struct qeth_discipline {
775 const struct device_type *devtype;
776 int (*setup) (struct ccwgroup_device *);
777 void (*remove) (struct ccwgroup_device *);
778 int (*set_online)(struct qeth_card *card, bool carrier_ok);
779 void (*set_offline)(struct qeth_card *card);
780 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
781 int (*control_event_handler)(struct qeth_card *card,
782 struct qeth_ipa_cmd *cmd);
785 enum qeth_addr_disposition {
786 QETH_DISP_ADDR_DELETE = 0,
787 QETH_DISP_ADDR_DO_NOTHING = 1,
788 QETH_DISP_ADDR_ADD = 2,
800 struct carrier_info {
806 struct qeth_switch_info {
812 unsigned int rx_copybreak;
813 unsigned int tx_wanted_queues;
814 u32 brport_hw_features;
818 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
821 enum qeth_card_states state;
823 struct ccwgroup_device *gdev;
824 struct qeth_cmd_buffer *read_cmd;
825 struct qeth_channel read;
826 struct qeth_channel write;
827 struct qeth_channel data;
829 struct net_device *dev;
830 struct dentry *debugfs;
831 struct qeth_card_stats stats;
832 struct qeth_card_info info;
833 struct qeth_token token;
834 struct qeth_seqno seqno;
835 struct qeth_card_options options;
837 struct workqueue_struct *event_wq;
838 struct workqueue_struct *cmd_wq;
839 wait_queue_head_t wait_q;
841 struct mutex ip_lock;
842 /* protected by ip_lock: */
843 DECLARE_HASHTABLE(ip_htable, 4);
844 struct qeth_ipato ipato;
846 DECLARE_HASHTABLE(local_addrs4, 4);
847 DECLARE_HASHTABLE(local_addrs6, 4);
848 spinlock_t local_addrs4_lock;
849 spinlock_t local_addrs6_lock;
850 DECLARE_HASHTABLE(rx_mode_addrs, 4);
851 struct work_struct rx_mode_work;
852 struct work_struct kernel_thread_starter;
853 spinlock_t thread_mask_lock;
854 unsigned long thread_start_mask;
855 unsigned long thread_allowed_mask;
856 unsigned long thread_running_mask;
857 struct list_head cmd_waiter_list;
858 /* QDIO buffer handling */
859 struct qeth_qdio_info qdio;
860 int read_or_write_problem;
861 struct qeth_osn_info osn_info;
862 const struct qeth_discipline *discipline;
863 atomic_t force_alloc_skb;
864 struct service_level qeth_service_level;
865 struct qdio_ssqd_desc ssqd;
867 struct mutex sbp_lock;
868 struct mutex conf_mutex;
869 struct mutex discipline_mutex;
870 struct napi_struct napi;
872 struct delayed_work buffer_reclaim_work;
873 struct work_struct close_dev_work;
876 static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
878 return card->state == CARD_STATE_SOFTSETUP;
881 static inline void qeth_unlock_channel(struct qeth_card *card,
882 struct qeth_channel *channel)
884 atomic_set(&channel->irq_pending, 0);
885 wake_up(&card->wait_q);
888 struct qeth_trap_id {
896 static inline bool qeth_uses_tx_prio_queueing(struct qeth_card *card)
898 return card->qdio.do_prio_queueing != QETH_NO_PRIO_QUEUEING;
901 static inline unsigned int qeth_tx_actual_queues(struct qeth_card *card)
903 struct qeth_priv *priv = netdev_priv(card->dev);
905 if (qeth_uses_tx_prio_queueing(card))
906 return min(card->dev->num_tx_queues, card->qdio.no_out_queues);
908 return min(priv->tx_wanted_queues, card->qdio.no_out_queues);
911 static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
913 if (txq == QETH_IQD_MCAST_TXQ)
914 return dev->num_tx_queues - 1;
915 if (txq == dev->num_tx_queues - 1)
916 return QETH_IQD_MCAST_TXQ;
920 static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
921 struct qeth_qdio_out_q *queue)
923 return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
927 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
928 unsigned int elements)
932 for (i = 0; i < elements; i++)
933 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
934 buf->element[14].sflags = 0;
935 buf->element[15].sflags = 0;
939 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
940 * @start: Start of the address range.
941 * @end: Address after the end of the range.
943 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
944 * the specified address range.
946 static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
948 return PFN_UP(end) - PFN_DOWN(start);
951 static inline int qeth_get_ip_version(struct sk_buff *skb)
953 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
954 __be16 prot = veth->h_vlan_proto;
956 if (prot == htons(ETH_P_8021Q))
957 prot = veth->h_vlan_encapsulated_proto;
960 case htons(ETH_P_IPV6):
962 case htons(ETH_P_IP):
969 static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
971 u8 *addr = eth_hdr(skb)->h_dest;
973 if (is_multicast_ether_addr(addr))
974 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
979 static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv)
981 struct dst_entry *dst = skb_dst(skb);
984 rt = (struct rt6_info *) dst;
986 dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0);
990 static inline __be32 qeth_next_hop_v4_rcu(struct sk_buff *skb,
991 struct dst_entry *dst)
993 struct rtable *rt = (struct rtable *) dst;
995 return (rt) ? rt_nexthop(rt, ip_hdr(skb)->daddr) : ip_hdr(skb)->daddr;
998 static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb,
999 struct dst_entry *dst)
1001 struct rt6_info *rt = (struct rt6_info *) dst;
1003 if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
1004 return &rt->rt6i_gateway;
1006 return &ipv6_hdr(skb)->daddr;
1009 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
1011 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
1012 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
1013 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
1014 *flags |= QETH_HDR_EXT_UDP;
1017 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
1018 struct qeth_buffer_pool_entry *entry)
1020 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
1023 static inline int qeth_is_diagass_supported(struct qeth_card *card,
1024 enum qeth_diags_cmds cmd)
1026 return card->info.diagass_support & (__u32)cmd;
1029 int qeth_send_simple_setassparms_prot(struct qeth_card *card,
1030 enum qeth_ipa_funcs ipa_func,
1031 u16 cmd_code, u32 *data,
1032 enum qeth_prot_versions prot);
1034 static inline int qeth_send_simple_setassparms(struct qeth_card *card,
1035 enum qeth_ipa_funcs ipa_func,
1036 u16 cmd_code, u32 *data)
1038 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1039 data, QETH_PROT_IPV4);
1042 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
1043 enum qeth_ipa_funcs ipa_func,
1044 u16 cmd_code, u32 *data)
1046 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1047 data, QETH_PROT_IPV6);
1050 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
1052 extern const struct qeth_discipline qeth_l2_discipline;
1053 extern const struct qeth_discipline qeth_l3_discipline;
1054 extern const struct ethtool_ops qeth_ethtool_ops;
1055 extern const struct ethtool_ops qeth_osn_ethtool_ops;
1056 extern const struct attribute_group *qeth_generic_attr_groups[];
1057 extern const struct attribute_group *qeth_osn_attr_groups[];
1058 extern const struct attribute_group qeth_device_attr_group;
1059 extern const struct attribute_group qeth_device_blkt_group;
1060 extern const struct device_type qeth_generic_devtype;
1062 const char *qeth_get_cardname_short(struct qeth_card *);
1063 int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
1064 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
1065 void qeth_core_free_discipline(struct qeth_card *);
1067 /* exports for qeth discipline device drivers */
1068 extern struct kmem_cache *qeth_core_header_cache;
1069 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
1071 struct net_device *qeth_clone_netdev(struct net_device *orig);
1072 struct qeth_card *qeth_get_card_by_busid(char *bus_id);
1073 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
1074 int clear_start_mask);
1075 int qeth_threads_running(struct qeth_card *, unsigned long);
1076 int qeth_set_offline(struct qeth_card *card, const struct qeth_discipline *disc,
1079 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
1081 (struct qeth_card *, struct qeth_reply *, unsigned long),
1083 struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
1084 enum qeth_ipa_cmds cmd_code,
1085 enum qeth_prot_versions prot,
1086 unsigned int data_length);
1087 struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel,
1088 unsigned int length, unsigned int ccws,
1090 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
1091 enum qeth_ipa_funcs ipa_func,
1093 unsigned int data_length,
1094 enum qeth_prot_versions prot);
1095 struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
1096 enum qeth_diags_cmds sub_cmd,
1097 unsigned int data_length);
1098 void qeth_notify_cmd(struct qeth_cmd_buffer *iob, int reason);
1099 void qeth_put_cmd(struct qeth_cmd_buffer *iob);
1101 int qeth_schedule_recovery(struct qeth_card *card);
1102 int qeth_poll(struct napi_struct *napi, int budget);
1103 void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable);
1104 int qeth_setadpparms_change_macaddr(struct qeth_card *);
1105 void qeth_tx_timeout(struct net_device *, unsigned int txqueue);
1106 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1108 bool (*match)(struct qeth_cmd_buffer *iob,
1109 struct qeth_cmd_buffer *reply));
1110 int qeth_query_switch_attributes(struct qeth_card *card,
1111 struct qeth_switch_info *sw_info);
1112 int qeth_query_card_info(struct qeth_card *card,
1113 struct carrier_info *carrier_info);
1114 int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
1115 enum qeth_ipa_isolation_modes mode);
1117 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
1118 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1119 struct sk_buff *skb, struct qeth_hdr *hdr,
1120 unsigned int offset, unsigned int hd_len,
1121 int elements_needed);
1122 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1123 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1124 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1125 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
1126 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1127 int qeth_set_features(struct net_device *, netdev_features_t);
1128 void qeth_enable_hw_features(struct net_device *dev);
1129 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1130 netdev_features_t qeth_features_check(struct sk_buff *skb,
1131 struct net_device *dev,
1132 netdev_features_t features);
1133 void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
1134 int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count);
1135 u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
1136 u8 cast_type, struct net_device *sb_dev);
1137 int qeth_open(struct net_device *dev);
1138 int qeth_stop(struct net_device *dev);
1140 int qeth_vm_request_mac(struct qeth_card *card);
1141 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1142 struct qeth_qdio_out_q *queue, int ipv,
1143 void (*fill_header)(struct qeth_qdio_out_q *queue,
1144 struct qeth_hdr *hdr, struct sk_buff *skb,
1145 int ipv, unsigned int data_len));
1147 /* exports for OSN */
1148 int qeth_osn_assist(struct net_device *, void *, int);
1149 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1150 int (*assist_cb)(struct net_device *, void *),
1151 int (*data_cb)(struct sk_buff *));
1152 void qeth_osn_deregister(struct net_device *);
1154 #endif /* __QETH_CORE_H__ */