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 /*TCP Segmentation Offload header*/
282 struct qeth_hdr_ext_tso {
293 } __attribute__ ((packed));
295 struct qeth_hdr_tso {
296 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
297 struct qeth_hdr_ext_tso ext;
298 } __attribute__ ((packed));
301 /* flags for qeth_hdr.flags */
302 #define QETH_HDR_PASSTHRU 0x10
303 #define QETH_HDR_IPV6 0x80
304 #define QETH_HDR_CAST_MASK 0x07
305 enum qeth_cast_flags {
306 QETH_CAST_UNICAST = 0x06,
307 QETH_CAST_MULTICAST = 0x04,
308 QETH_CAST_BROADCAST = 0x05,
309 QETH_CAST_ANYCAST = 0x07,
310 QETH_CAST_NOCAST = 0x00,
313 enum qeth_layer2_frame_flags {
314 QETH_LAYER2_FLAG_MULTICAST = 0x01,
315 QETH_LAYER2_FLAG_BROADCAST = 0x02,
316 QETH_LAYER2_FLAG_UNICAST = 0x04,
317 QETH_LAYER2_FLAG_VLAN = 0x10,
320 enum qeth_header_ids {
321 QETH_HEADER_TYPE_LAYER3 = 0x01,
322 QETH_HEADER_TYPE_LAYER2 = 0x02,
323 QETH_HEADER_TYPE_L3_TSO = 0x03,
324 QETH_HEADER_TYPE_OSN = 0x04,
325 QETH_HEADER_TYPE_L2_TSO = 0x06,
326 QETH_HEADER_MASK_INVAL = 0x80,
328 /* flags for qeth_hdr.ext_flags */
329 #define QETH_HDR_EXT_VLAN_FRAME 0x01
330 #define QETH_HDR_EXT_TOKEN_ID 0x02
331 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
332 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
333 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
334 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
335 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
337 static inline bool qeth_l2_same_vlan(struct qeth_hdr_layer2 *h1,
338 struct qeth_hdr_layer2 *h2)
340 return !((h1->flags[2] ^ h2->flags[2]) & QETH_LAYER2_FLAG_VLAN) &&
341 h1->vlan_id == h2->vlan_id;
344 static inline bool qeth_l3_iqd_same_vlan(struct qeth_hdr_layer3 *h1,
345 struct qeth_hdr_layer3 *h2)
347 return !((h1->ext_flags ^ h2->ext_flags) & QETH_HDR_EXT_VLAN_FRAME) &&
348 h1->vlan_id == h2->vlan_id;
351 static inline bool qeth_l3_same_next_hop(struct qeth_hdr_layer3 *h1,
352 struct qeth_hdr_layer3 *h2)
354 return !((h1->flags ^ h2->flags) & QETH_HDR_IPV6) &&
355 ipv6_addr_equal(&h1->next_hop.addr, &h2->next_hop.addr);
358 struct qeth_local_addr {
359 struct hlist_node hnode;
361 struct in6_addr addr;
364 enum qeth_qdio_info_states {
365 QETH_QDIO_UNINITIALIZED,
367 QETH_QDIO_ESTABLISHED,
371 struct qeth_buffer_pool_entry {
372 struct list_head list;
373 struct list_head init_list;
374 struct page *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
377 struct qeth_qdio_buffer_pool {
378 struct list_head entry_list;
382 struct qeth_qdio_buffer {
383 struct qdio_buffer *buffer;
384 /* the buffer pool entry currently associated to this buffer */
385 struct qeth_buffer_pool_entry *pool_entry;
386 struct sk_buff *rx_skb;
390 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
391 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
392 int next_buf_to_init;
395 enum qeth_qdio_out_buffer_state {
396 /* Owned by driver, in order to be filled. */
398 /* Filled by driver; owned by hardware in order to be sent. */
399 QETH_QDIO_BUF_PRIMED,
400 /* Identified to be pending in TPQ. */
401 QETH_QDIO_BUF_PENDING,
402 /* Found in completion queue. */
404 /* Handled via transfer pending / completion queue. */
405 QETH_QDIO_BUF_HANDLED_DELAYED,
408 struct qeth_qdio_out_buffer {
409 struct qdio_buffer *buffer;
411 int next_element_to_fill;
414 struct sk_buff_head skb_list;
415 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
417 struct qeth_qdio_out_q *q;
418 struct qeth_qdio_out_buffer *next_pending;
423 #define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
424 #define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
426 #define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
427 #define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
429 struct qeth_card_stats {
434 u64 rx_sg_alloc_page;
436 u64 rx_dropped_nomem;
437 u64 rx_dropped_notsupp;
440 /* rtnl_link_stats64 */
444 u64 rx_length_errors;
449 struct qeth_out_q_stats {
458 u64 skbs_linearized_fail;
460 u64 packing_mode_switch;
464 u64 completion_yield;
465 u64 completion_timer;
467 /* rtnl_link_stats64 */
474 #define QETH_TX_MAX_COALESCED_FRAMES 1
475 #define QETH_TX_COALESCE_USECS 25
476 #define QETH_TX_TIMER_USECS 500
478 struct qeth_qdio_out_q {
479 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
480 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
481 struct qdio_outbuf_state *bufstates; /* convenience pointer */
482 struct qeth_out_q_stats stats;
488 struct qeth_card *card;
490 * number of buffers that are currently filled (PRIMED)
491 * -> these buffers are hardware-owned
493 atomic_t used_buffers;
494 /* indicates whether PCI flag must be set (or if one is outstanding) */
495 atomic_t set_pci_flags_count;
496 struct napi_struct napi;
497 struct timer_list timer;
498 struct qeth_hdr *prev_hdr;
499 unsigned int coalesced_frames;
504 unsigned int coalesce_usecs;
505 unsigned int max_coalesced_frames;
508 #define qeth_for_each_output_queue(card, q, i) \
509 for (i = 0; i < card->qdio.no_out_queues && \
510 (q = card->qdio.out_qs[i]); i++)
512 #define qeth_napi_to_out_queue(n) container_of(n, struct qeth_qdio_out_q, napi)
514 static inline void qeth_tx_arm_timer(struct qeth_qdio_out_q *queue,
517 timer_reduce(&queue->timer, usecs_to_jiffies(usecs) + jiffies);
520 static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
522 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
525 static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
527 return atomic_read(&queue->used_buffers) == 0;
530 struct qeth_qdio_info {
534 struct qeth_qdio_q *in_q;
535 struct qeth_qdio_q *c_q;
536 struct qeth_qdio_buffer_pool in_buf_pool;
537 struct qeth_qdio_buffer_pool init_pool;
542 struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];
543 struct qdio_outbuf_state *out_bufstates;
545 /* priority queueing */
546 int do_prio_queueing;
547 int default_out_queue;
551 * channel state machine
553 enum qeth_channel_states {
562 enum qeth_card_states {
564 CARD_STATE_SOFTSETUP,
570 enum qeth_prot_versions {
571 QETH_PROT_NONE = 0x0000,
572 QETH_PROT_IPV4 = 0x0004,
573 QETH_PROT_IPV6 = 0x0006,
577 QETH_CQ_DISABLED = 0,
579 QETH_CQ_NOTAVAILABLE = 2,
586 struct list_head entries;
589 struct qeth_channel {
590 struct ccw_device *ccwdev;
591 struct qeth_cmd_buffer *active_cmd;
592 enum qeth_channel_states state;
593 atomic_t irq_pending;
597 int (*callback)(struct qeth_card *card, struct qeth_reply *reply,
602 struct qeth_cmd_buffer {
603 struct list_head list;
604 struct completion done;
607 refcount_t ref_count;
608 struct qeth_channel *channel;
609 struct qeth_reply reply;
612 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
613 bool (*match)(struct qeth_cmd_buffer *iob,
614 struct qeth_cmd_buffer *reply);
615 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
616 unsigned int data_length);
620 static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
622 refcount_inc(&iob->ref_count);
625 static inline struct qeth_ipa_cmd *__ipa_reply(struct qeth_cmd_buffer *iob)
627 if (!IS_IPA(iob->data))
630 return (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
633 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
635 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
638 static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
640 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
643 static inline bool qeth_trylock_channel(struct qeth_channel *channel)
645 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0;
649 * OSA card related definitions
656 __u32 cm_connection_w;
657 __u32 cm_connection_r;
660 __u32 ulp_connection_w;
661 __u32 ulp_connection_r;
671 struct qeth_card_blkt {
674 int inter_packet_jumbo;
677 enum qeth_pnso_mode {
679 QETH_PNSO_BRIDGEPORT,
683 #define QETH_BROADCAST_WITH_ECHO 0x01
684 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
685 struct qeth_card_info {
686 unsigned short unit_addr2;
689 char mcl_level[QETH_MCL_LENGTH + 1];
690 /* doubleword below corresponds to net_if_token */
697 u8 ids_valid:1; /* cssid,iid,chid */
698 u8 dev_addr_is_registered:1;
699 u8 open_when_online:1;
703 /* no bitfield, we take a pointer on these two: */
706 enum qeth_pnso_mode pnso_mode;
707 enum qeth_card_types type;
708 enum qeth_link_types link_type;
709 int broadcast_capable;
711 struct qeth_card_blkt blkt;
712 __u32 diagass_support;
716 enum qeth_discipline_id {
717 QETH_DISCIPLINE_UNDETERMINED = -1,
718 QETH_DISCIPLINE_LAYER3 = 0,
719 QETH_DISCIPLINE_LAYER2 = 1,
722 struct qeth_card_options {
723 struct qeth_ipa_caps ipa4;
724 struct qeth_ipa_caps ipa6;
725 struct qeth_routing_info route4;
726 struct qeth_routing_info route6;
727 struct qeth_ipa_caps adp; /* Adapter parameters */
728 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
729 struct qeth_vnicc_info vnicc; /* VNICC options */
730 enum qeth_discipline_id layer;
731 enum qeth_ipa_isolation_modes isolation;
737 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
738 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
741 * thread bits for qeth_card thread masks
744 QETH_RECOVER_THREAD = 1,
747 struct qeth_osn_info {
748 int (*assist_cb)(struct net_device *dev, void *data);
749 int (*data_cb)(struct sk_buff *skb);
752 struct qeth_discipline {
753 const struct device_type *devtype;
754 int (*setup) (struct ccwgroup_device *);
755 void (*remove) (struct ccwgroup_device *);
756 int (*set_online)(struct qeth_card *card);
757 void (*set_offline)(struct qeth_card *card);
758 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
759 int (*control_event_handler)(struct qeth_card *card,
760 struct qeth_ipa_cmd *cmd);
763 enum qeth_addr_disposition {
764 QETH_DISP_ADDR_DELETE = 0,
765 QETH_DISP_ADDR_DO_NOTHING = 1,
766 QETH_DISP_ADDR_ADD = 2,
778 struct carrier_info {
784 struct qeth_switch_info {
790 unsigned int rx_copybreak;
791 u32 brport_hw_features;
795 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
798 enum qeth_card_states state;
800 struct ccwgroup_device *gdev;
801 struct qeth_cmd_buffer *read_cmd;
802 struct qeth_channel read;
803 struct qeth_channel write;
804 struct qeth_channel data;
806 struct net_device *dev;
807 struct dentry *debugfs;
808 struct qeth_card_stats stats;
809 struct qeth_card_info info;
810 struct qeth_token token;
811 struct qeth_seqno seqno;
812 struct qeth_card_options options;
814 struct workqueue_struct *event_wq;
815 struct workqueue_struct *cmd_wq;
816 wait_queue_head_t wait_q;
818 struct mutex ip_lock;
819 /* protected by ip_lock: */
820 DECLARE_HASHTABLE(ip_htable, 4);
821 struct qeth_ipato ipato;
823 DECLARE_HASHTABLE(local_addrs4, 4);
824 DECLARE_HASHTABLE(local_addrs6, 4);
825 spinlock_t local_addrs4_lock;
826 spinlock_t local_addrs6_lock;
827 DECLARE_HASHTABLE(rx_mode_addrs, 4);
828 struct work_struct rx_mode_work;
829 struct work_struct kernel_thread_starter;
830 spinlock_t thread_mask_lock;
831 unsigned long thread_start_mask;
832 unsigned long thread_allowed_mask;
833 unsigned long thread_running_mask;
834 struct list_head cmd_waiter_list;
835 /* QDIO buffer handling */
836 struct qeth_qdio_info qdio;
837 int read_or_write_problem;
838 struct qeth_osn_info osn_info;
839 struct qeth_discipline *discipline;
840 atomic_t force_alloc_skb;
841 struct service_level qeth_service_level;
842 struct qdio_ssqd_desc ssqd;
844 struct mutex sbp_lock;
845 struct mutex conf_mutex;
846 struct mutex discipline_mutex;
847 struct napi_struct napi;
849 struct delayed_work buffer_reclaim_work;
850 struct work_struct close_dev_work;
853 static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
855 return card->state == CARD_STATE_SOFTSETUP;
858 static inline void qeth_unlock_channel(struct qeth_card *card,
859 struct qeth_channel *channel)
861 atomic_set(&channel->irq_pending, 0);
862 wake_up(&card->wait_q);
865 struct qeth_trap_id {
873 /*some helper functions*/
874 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
876 static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
878 if (txq == QETH_IQD_MCAST_TXQ)
879 return dev->num_tx_queues - 1;
880 if (txq == dev->num_tx_queues - 1)
881 return QETH_IQD_MCAST_TXQ;
885 static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
886 struct qeth_qdio_out_q *queue)
888 return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
892 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
893 unsigned int elements)
897 for (i = 0; i < elements; i++)
898 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
899 buf->element[14].sflags = 0;
900 buf->element[15].sflags = 0;
904 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
905 * @start: Start of the address range.
906 * @end: Address after the end of the range.
908 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
909 * the specified address range.
911 static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
913 return PFN_UP(end) - PFN_DOWN(start);
916 static inline int qeth_get_ip_version(struct sk_buff *skb)
918 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
919 __be16 prot = veth->h_vlan_proto;
921 if (prot == htons(ETH_P_8021Q))
922 prot = veth->h_vlan_encapsulated_proto;
925 case htons(ETH_P_IPV6):
927 case htons(ETH_P_IP):
934 static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
936 u8 *addr = eth_hdr(skb)->h_dest;
938 if (is_multicast_ether_addr(addr))
939 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
944 static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv)
946 struct dst_entry *dst = skb_dst(skb);
949 rt = (struct rt6_info *) dst;
951 dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0);
955 static inline __be32 qeth_next_hop_v4_rcu(struct sk_buff *skb,
956 struct dst_entry *dst)
958 struct rtable *rt = (struct rtable *) dst;
960 return (rt) ? rt_nexthop(rt, ip_hdr(skb)->daddr) : ip_hdr(skb)->daddr;
963 static inline struct in6_addr *qeth_next_hop_v6_rcu(struct sk_buff *skb,
964 struct dst_entry *dst)
966 struct rt6_info *rt = (struct rt6_info *) dst;
968 if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
969 return &rt->rt6i_gateway;
971 return &ipv6_hdr(skb)->daddr;
974 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
976 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
977 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
978 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
979 *flags |= QETH_HDR_EXT_UDP;
982 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
983 struct qeth_buffer_pool_entry *entry)
985 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
988 static inline int qeth_is_diagass_supported(struct qeth_card *card,
989 enum qeth_diags_cmds cmd)
991 return card->info.diagass_support & (__u32)cmd;
994 int qeth_send_simple_setassparms_prot(struct qeth_card *card,
995 enum qeth_ipa_funcs ipa_func,
996 u16 cmd_code, u32 *data,
997 enum qeth_prot_versions prot);
999 static inline int qeth_send_simple_setassparms(struct qeth_card *card,
1000 enum qeth_ipa_funcs ipa_func,
1001 u16 cmd_code, u32 *data)
1003 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1004 data, QETH_PROT_IPV4);
1007 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
1008 enum qeth_ipa_funcs ipa_func,
1009 u16 cmd_code, u32 *data)
1011 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1012 data, QETH_PROT_IPV6);
1015 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
1017 extern struct qeth_discipline qeth_l2_discipline;
1018 extern struct qeth_discipline qeth_l3_discipline;
1019 extern const struct ethtool_ops qeth_ethtool_ops;
1020 extern const struct ethtool_ops qeth_osn_ethtool_ops;
1021 extern const struct attribute_group *qeth_generic_attr_groups[];
1022 extern const struct attribute_group *qeth_osn_attr_groups[];
1023 extern const struct attribute_group qeth_device_attr_group;
1024 extern const struct attribute_group qeth_device_blkt_group;
1025 extern const struct device_type qeth_generic_devtype;
1027 const char *qeth_get_cardname_short(struct qeth_card *);
1028 int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
1029 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
1030 void qeth_core_free_discipline(struct qeth_card *);
1032 /* exports for qeth discipline device drivers */
1033 extern struct kmem_cache *qeth_core_header_cache;
1034 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
1036 struct net_device *qeth_clone_netdev(struct net_device *orig);
1037 struct qeth_card *qeth_get_card_by_busid(char *bus_id);
1038 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
1039 int qeth_threads_running(struct qeth_card *, unsigned long);
1040 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok);
1041 int qeth_stop_channel(struct qeth_channel *channel);
1042 int qeth_set_offline(struct qeth_card *card, bool resetting);
1044 void qeth_print_status_message(struct qeth_card *);
1045 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
1047 (struct qeth_card *, struct qeth_reply *, unsigned long),
1049 struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
1050 enum qeth_ipa_cmds cmd_code,
1051 enum qeth_prot_versions prot,
1052 unsigned int data_length);
1053 struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel,
1054 unsigned int length, unsigned int ccws,
1056 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
1057 enum qeth_ipa_funcs ipa_func,
1059 unsigned int data_length,
1060 enum qeth_prot_versions prot);
1061 struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
1062 enum qeth_diags_cmds sub_cmd,
1063 unsigned int data_length);
1064 void qeth_notify_cmd(struct qeth_cmd_buffer *iob, int reason);
1065 void qeth_put_cmd(struct qeth_cmd_buffer *iob);
1067 int qeth_schedule_recovery(struct qeth_card *card);
1068 void qeth_flush_local_addrs(struct qeth_card *card);
1069 int qeth_poll(struct napi_struct *napi, int budget);
1070 int qeth_qdio_clear_card(struct qeth_card *, int);
1071 void qeth_clear_working_pool_list(struct qeth_card *);
1072 void qeth_drain_output_queues(struct qeth_card *card);
1073 void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable);
1074 int qeth_setadpparms_change_macaddr(struct qeth_card *);
1075 void qeth_tx_timeout(struct net_device *, unsigned int txqueue);
1076 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1078 bool (*match)(struct qeth_cmd_buffer *iob,
1079 struct qeth_cmd_buffer *reply));
1080 int qeth_query_switch_attributes(struct qeth_card *card,
1081 struct qeth_switch_info *sw_info);
1082 int qeth_query_card_info(struct qeth_card *card,
1083 struct carrier_info *carrier_info);
1084 int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
1085 enum qeth_ipa_isolation_modes mode);
1087 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
1088 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1089 struct sk_buff *skb, struct qeth_hdr *hdr,
1090 unsigned int offset, unsigned int hd_len,
1091 int elements_needed);
1092 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1093 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1094 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1095 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
1096 void qeth_trace_features(struct qeth_card *);
1097 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1098 int qeth_setup_netdev(struct qeth_card *card);
1099 int qeth_set_features(struct net_device *, netdev_features_t);
1100 void qeth_enable_hw_features(struct net_device *dev);
1101 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1102 netdev_features_t qeth_features_check(struct sk_buff *skb,
1103 struct net_device *dev,
1104 netdev_features_t features);
1105 void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
1106 int qeth_set_real_num_tx_queues(struct qeth_card *card, unsigned int count);
1107 u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
1108 u8 cast_type, struct net_device *sb_dev);
1109 int qeth_open(struct net_device *dev);
1110 int qeth_stop(struct net_device *dev);
1112 int qeth_vm_request_mac(struct qeth_card *card);
1113 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1114 struct qeth_qdio_out_q *queue, int ipv,
1115 void (*fill_header)(struct qeth_qdio_out_q *queue,
1116 struct qeth_hdr *hdr, struct sk_buff *skb,
1117 int ipv, unsigned int data_len));
1119 /* exports for OSN */
1120 int qeth_osn_assist(struct net_device *, void *, int);
1121 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1122 int (*assist_cb)(struct net_device *, void *),
1123 int (*data_cb)(struct sk_buff *));
1124 void qeth_osn_deregister(struct net_device *);
1126 #endif /* __QETH_CORE_H__ */