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>
15 #include <linux/if_arp.h>
16 #include <linux/etherdevice.h>
17 #include <linux/if_vlan.h>
18 #include <linux/ctype.h>
19 #include <linux/in6.h>
20 #include <linux/bitops.h>
21 #include <linux/seq_file.h>
22 #include <linux/hashtable.h>
24 #include <linux/refcount.h>
25 #include <linux/timer.h>
26 #include <linux/wait.h>
27 #include <linux/workqueue.h>
30 #include <net/ip6_fib.h>
32 #include <net/if_inet6.h>
33 #include <net/addrconf.h>
34 #include <net/sch_generic.h>
37 #include <asm/debug.h>
39 #include <asm/ccwdev.h>
40 #include <asm/ccwgroup.h>
41 #include <asm/sysinfo.h>
43 #include <uapi/linux/if_link.h>
45 #include "qeth_core_mpc.h"
48 * Debug Facility stuff
54 QETH_DBF_INFOS /* must be last element */
57 struct qeth_dbf_info {
58 char name[DEBUG_MAX_NAME_LEN];
63 struct debug_view *view;
67 #define QETH_DBF_CTRL_LEN 256U
69 #define QETH_DBF_TEXT(name, level, text) \
70 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
72 #define QETH_DBF_HEX(name, level, addr, len) \
73 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
75 #define QETH_DBF_MESSAGE(level, text...) \
76 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
78 #define QETH_DBF_TEXT_(name, level, text...) \
79 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
81 #define QETH_CARD_TEXT(card, level, text) \
82 debug_text_event(card->debug, level, text)
84 #define QETH_CARD_HEX(card, level, addr, len) \
85 debug_event(card->debug, level, (void *)(addr), len)
87 #define QETH_CARD_MESSAGE(card, text...) \
88 debug_sprintf_event(card->debug, level, text)
90 #define QETH_CARD_TEXT_(card, level, text...) \
91 qeth_dbf_longtext(card->debug, level, text)
93 #define SENSE_COMMAND_REJECT_BYTE 0
94 #define SENSE_COMMAND_REJECT_FLAG 0x80
95 #define SENSE_RESETTING_EVENT_BYTE 1
96 #define SENSE_RESETTING_EVENT_FLAG 0x80
98 static inline u32 qeth_get_device_id(struct ccw_device *cdev)
100 struct ccw_dev_id dev_id;
103 ccw_device_get_id(cdev, &dev_id);
105 id |= (u32) (dev_id.ssid << 16);
111 * Common IO related definitions
113 #define CARD_RDEV(card) card->read.ccwdev
114 #define CARD_WDEV(card) card->write.ccwdev
115 #define CARD_DDEV(card) card->data.ccwdev
116 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
117 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
118 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
119 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
120 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev))
121 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card)))
124 struct qeth_routing_info {
125 enum qeth_routing_types type;
129 struct qeth_ipa_info {
130 __u32 supported_funcs;
134 /* SETBRIDGEPORT stuff */
135 enum qeth_sbp_roles {
136 QETH_SBP_ROLE_NONE = 0,
137 QETH_SBP_ROLE_PRIMARY = 1,
138 QETH_SBP_ROLE_SECONDARY = 2,
141 enum qeth_sbp_states {
142 QETH_SBP_STATE_INACTIVE = 0,
143 QETH_SBP_STATE_STANDBY = 1,
144 QETH_SBP_STATE_ACTIVE = 2,
147 #define QETH_SBP_HOST_NOTIFICATION 1
149 struct qeth_sbp_info {
150 __u32 supported_funcs;
151 enum qeth_sbp_roles role;
152 __u32 hostnotification:1;
153 __u32 reflect_promisc:1;
154 __u32 reflect_promisc_primary:1;
157 struct qeth_vnicc_info {
158 /* supported/currently configured VNICCs; updated in IPA exchanges */
161 /* supported commands: bitmasks which VNICCs support respective cmd */
163 u32 getset_timeout_sup;
164 /* timeout value for the learning characteristic */
165 u32 learning_timeout;
166 /* characteristics wanted/configured by user */
168 /* has user explicitly enabled rx_bcast while online? */
169 bool rx_bcast_enabled;
172 static inline int qeth_is_adp_supported(struct qeth_ipa_info *ipa,
173 enum qeth_ipa_setadp_cmd func)
175 return (ipa->supported_funcs & func);
178 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
179 enum qeth_ipa_funcs func)
181 return (ipa->supported_funcs & func);
184 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
185 enum qeth_ipa_funcs func)
187 return (ipa->supported_funcs & ipa->enabled_funcs & func);
190 #define qeth_adp_supported(c, f) \
191 qeth_is_adp_supported(&c->options.adp, f)
192 #define qeth_is_supported(c, f) \
193 qeth_is_ipa_supported(&c->options.ipa4, f)
194 #define qeth_is_enabled(c, f) \
195 qeth_is_ipa_enabled(&c->options.ipa4, f)
196 #define qeth_is_supported6(c, f) \
197 qeth_is_ipa_supported(&c->options.ipa6, f)
198 #define qeth_is_enabled6(c, f) \
199 qeth_is_ipa_enabled(&c->options.ipa6, f)
200 #define qeth_is_ipafunc_supported(c, prot, f) \
201 ((prot == QETH_PROT_IPV6) ? \
202 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
203 #define qeth_is_ipafunc_enabled(c, prot, f) \
204 ((prot == QETH_PROT_IPV6) ? \
205 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
207 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101
208 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108
210 #define QETH_BUFSIZE 4096
211 #define CCW_CMD_WRITE 0x01
212 #define CCW_CMD_READ 0x02
217 #define QETH_TX_TIMEOUT 100 * HZ
218 #define QETH_RCD_TIMEOUT 60 * HZ
219 #define QETH_RECLAIM_WORK_TIME HZ
220 #define QETH_MAX_PORTNO 15
222 /*IPv6 address autoconfiguration stuff*/
223 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
224 #define UNIQUE_ID_NOT_BY_CARD 0x10000
226 /*****************************************************************************/
227 /* QDIO queue and buffer handling */
228 /*****************************************************************************/
229 #define QETH_MAX_QUEUES 4
230 #define QETH_IQD_MIN_TXQ 2 /* One for ucast, one for mcast. */
231 #define QETH_IQD_MCAST_TXQ 0
232 #define QETH_IQD_MIN_UCAST_TXQ 1
233 #define QETH_IN_BUF_SIZE_DEFAULT 65536
234 #define QETH_IN_BUF_COUNT_DEFAULT 64
235 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
236 #define QETH_IN_BUF_COUNT_MIN 8
237 #define QETH_IN_BUF_COUNT_MAX 128
238 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
239 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
240 ((card)->qdio.in_buf_pool.buf_count / 2)
242 /* buffers we have to be behind before we get a PCI */
243 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
244 /*enqueued free buffers left before we get a PCI*/
245 #define QETH_PCI_THRESHOLD_B(card) 0
246 /*not used unless the microcode gets patched*/
247 #define QETH_PCI_TIMER_VALUE(card) 3
249 /* priority queing */
250 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
251 #define QETH_DEFAULT_QUEUE 2
252 #define QETH_NO_PRIO_QUEUEING 0
253 #define QETH_PRIO_Q_ING_PREC 1
254 #define QETH_PRIO_Q_ING_TOS 2
255 #define QETH_PRIO_Q_ING_SKB 3
256 #define QETH_PRIO_Q_ING_VLAN 4
259 #define QETH_LOW_WATERMARK_PACK 2
260 #define QETH_HIGH_WATERMARK_PACK 5
261 #define QETH_WATERMARK_PACK_FUZZ 1
263 /* large receive scatter gather copy break */
264 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
265 #define QETH_RX_PULL_LEN 256
267 struct qeth_hdr_layer3 {
270 __u16 inbound_checksum; /*TSO:__u16 seqno */
271 __u32 token; /*TSO: __u32 reserved */
279 struct in6_addr ipv6_addr;
295 struct qeth_hdr_layer2 {
305 } __attribute__ ((packed));
307 struct qeth_hdr_osn {
316 } __attribute__ ((packed));
320 struct qeth_hdr_layer2 l2;
321 struct qeth_hdr_layer3 l3;
322 struct qeth_hdr_osn osn;
324 } __attribute__ ((packed));
326 /*TCP Segmentation Offload header*/
327 struct qeth_hdr_ext_tso {
338 } __attribute__ ((packed));
340 struct qeth_hdr_tso {
341 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
342 struct qeth_hdr_ext_tso ext;
343 } __attribute__ ((packed));
346 /* flags for qeth_hdr.flags */
347 #define QETH_HDR_PASSTHRU 0x10
348 #define QETH_HDR_IPV6 0x80
349 #define QETH_HDR_CAST_MASK 0x07
350 enum qeth_cast_flags {
351 QETH_CAST_UNICAST = 0x06,
352 QETH_CAST_MULTICAST = 0x04,
353 QETH_CAST_BROADCAST = 0x05,
354 QETH_CAST_ANYCAST = 0x07,
355 QETH_CAST_NOCAST = 0x00,
358 enum qeth_layer2_frame_flags {
359 QETH_LAYER2_FLAG_MULTICAST = 0x01,
360 QETH_LAYER2_FLAG_BROADCAST = 0x02,
361 QETH_LAYER2_FLAG_UNICAST = 0x04,
362 QETH_LAYER2_FLAG_VLAN = 0x10,
365 enum qeth_header_ids {
366 QETH_HEADER_TYPE_LAYER3 = 0x01,
367 QETH_HEADER_TYPE_LAYER2 = 0x02,
368 QETH_HEADER_TYPE_L3_TSO = 0x03,
369 QETH_HEADER_TYPE_OSN = 0x04,
370 QETH_HEADER_TYPE_L2_TSO = 0x06,
371 QETH_HEADER_MASK_INVAL = 0x80,
373 /* flags for qeth_hdr.ext_flags */
374 #define QETH_HDR_EXT_VLAN_FRAME 0x01
375 #define QETH_HDR_EXT_TOKEN_ID 0x02
376 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
377 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
378 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
379 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
380 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
382 static inline bool qeth_l2_same_vlan(struct qeth_hdr_layer2 *h1,
383 struct qeth_hdr_layer2 *h2)
385 return !((h1->flags[2] ^ h2->flags[2]) & QETH_LAYER2_FLAG_VLAN) &&
386 h1->vlan_id == h2->vlan_id;
389 static inline bool qeth_l3_iqd_same_vlan(struct qeth_hdr_layer3 *h1,
390 struct qeth_hdr_layer3 *h2)
392 return !((h1->ext_flags ^ h2->ext_flags) & QETH_HDR_EXT_VLAN_FRAME) &&
393 h1->vlan_id == h2->vlan_id;
396 static inline bool qeth_l3_same_next_hop(struct qeth_hdr_layer3 *h1,
397 struct qeth_hdr_layer3 *h2)
399 return !((h1->flags ^ h2->flags) & QETH_HDR_IPV6) &&
400 ipv6_addr_equal(&h1->next_hop.ipv6_addr,
401 &h2->next_hop.ipv6_addr);
404 enum qeth_qdio_info_states {
405 QETH_QDIO_UNINITIALIZED,
407 QETH_QDIO_ESTABLISHED,
411 struct qeth_buffer_pool_entry {
412 struct list_head list;
413 struct list_head init_list;
414 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
417 struct qeth_qdio_buffer_pool {
418 struct list_head entry_list;
422 struct qeth_qdio_buffer {
423 struct qdio_buffer *buffer;
424 /* the buffer pool entry currently associated to this buffer */
425 struct qeth_buffer_pool_entry *pool_entry;
426 struct sk_buff *rx_skb;
430 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
431 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
432 int next_buf_to_init;
435 enum qeth_qdio_out_buffer_state {
436 /* Owned by driver, in order to be filled. */
438 /* Filled by driver; owned by hardware in order to be sent. */
439 QETH_QDIO_BUF_PRIMED,
440 /* Identified to be pending in TPQ. */
441 QETH_QDIO_BUF_PENDING,
442 /* Found in completion queue. */
444 /* Handled via transfer pending / completion queue. */
445 QETH_QDIO_BUF_HANDLED_DELAYED,
448 struct qeth_qdio_out_buffer {
449 struct qdio_buffer *buffer;
451 int next_element_to_fill;
453 struct sk_buff_head skb_list;
454 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
456 struct qeth_qdio_out_q *q;
457 struct qeth_qdio_out_buffer *next_pending;
462 enum qeth_out_q_states {
465 QETH_OUT_Q_LOCKED_FLUSH,
468 #define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
469 #define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
471 #define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
472 #define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
474 struct qeth_card_stats {
479 u64 rx_sg_alloc_page;
481 u64 rx_dropped_nomem;
482 u64 rx_dropped_notsupp;
484 /* rtnl_link_stats64 */
488 u64 rx_length_errors;
493 struct qeth_out_q_stats {
502 u64 skbs_linearized_fail;
504 u64 packing_mode_switch;
506 u64 completion_yield;
507 u64 completion_timer;
509 /* rtnl_link_stats64 */
516 #define QETH_TX_TIMER_USECS 500
518 struct qeth_qdio_out_q {
519 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
520 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
521 struct qdio_outbuf_state *bufstates; /* convenience pointer */
522 struct qeth_out_q_stats stats;
527 struct qeth_card *card;
530 * number of buffers that are currently filled (PRIMED)
531 * -> these buffers are hardware-owned
533 atomic_t used_buffers;
534 /* indicates whether PCI flag must be set (or if one is outstanding) */
535 atomic_t set_pci_flags_count;
536 struct napi_struct napi;
537 struct timer_list timer;
538 struct qeth_hdr *prev_hdr;
544 #define qeth_for_each_output_queue(card, q, i) \
545 for (i = 0; i < card->qdio.no_out_queues && \
546 (q = card->qdio.out_qs[i]); i++)
548 #define qeth_napi_to_out_queue(n) container_of(n, struct qeth_qdio_out_q, napi)
550 static inline void qeth_tx_arm_timer(struct qeth_qdio_out_q *queue)
552 if (timer_pending(&queue->timer))
554 mod_timer(&queue->timer, usecs_to_jiffies(QETH_TX_TIMER_USECS) +
558 static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
560 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
563 static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
565 return atomic_read(&queue->used_buffers) == 0;
568 struct qeth_qdio_info {
572 struct qeth_qdio_q *in_q;
573 struct qeth_qdio_q *c_q;
574 struct qeth_qdio_buffer_pool in_buf_pool;
575 struct qeth_qdio_buffer_pool init_pool;
580 struct qeth_qdio_out_q *out_qs[QETH_MAX_QUEUES];
581 struct qdio_outbuf_state *out_bufstates;
583 /* priority queueing */
584 int do_prio_queueing;
585 int default_out_queue;
589 * channel state machine
591 enum qeth_channel_states {
600 enum qeth_card_states {
602 CARD_STATE_HARDSETUP,
603 CARD_STATE_SOFTSETUP,
609 enum qeth_prot_versions {
610 QETH_PROT_NONE = 0x0000,
611 QETH_PROT_IPV4 = 0x0004,
612 QETH_PROT_IPV6 = 0x0006,
616 QETH_CQ_DISABLED = 0,
618 QETH_CQ_NOTAVAILABLE = 2,
625 struct list_head entries;
628 struct qeth_channel {
629 struct ccw_device *ccwdev;
630 enum qeth_channel_states state;
631 atomic_t irq_pending;
635 int (*callback)(struct qeth_card *card, struct qeth_reply *reply,
640 struct qeth_cmd_buffer {
641 struct list_head list;
642 struct completion done;
645 refcount_t ref_count;
646 struct qeth_channel *channel;
647 struct qeth_reply reply;
650 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
651 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
652 unsigned int data_length);
656 static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
658 refcount_inc(&iob->ref_count);
661 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
663 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
666 static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
668 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
671 static inline bool qeth_trylock_channel(struct qeth_channel *channel)
673 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0;
677 * OSA card related definitions
684 __u32 cm_connection_w;
685 __u32 cm_connection_r;
688 __u32 ulp_connection_w;
689 __u32 ulp_connection_r;
699 struct qeth_card_blkt {
702 int inter_packet_jumbo;
705 #define QETH_BROADCAST_WITH_ECHO 0x01
706 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
707 #define QETH_LAYER2_MAC_REGISTERED 0x02
708 struct qeth_card_info {
709 unsigned short unit_addr2;
713 char mcl_level[QETH_MCL_LENGTH + 1];
714 u8 open_when_online:1;
719 enum qeth_card_types type;
720 enum qeth_link_types link_type;
721 int broadcast_capable;
724 struct qeth_card_blkt blkt;
725 __u32 diagass_support;
729 enum qeth_discipline_id {
730 QETH_DISCIPLINE_UNDETERMINED = -1,
731 QETH_DISCIPLINE_LAYER3 = 0,
732 QETH_DISCIPLINE_LAYER2 = 1,
735 struct qeth_card_options {
736 struct qeth_routing_info route4;
737 struct qeth_ipa_info ipa4;
738 struct qeth_ipa_info adp; /*Adapter parameters*/
739 struct qeth_routing_info route6;
740 struct qeth_ipa_info ipa6;
741 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
742 struct qeth_vnicc_info vnicc; /* VNICC options */
744 enum qeth_discipline_id layer;
746 enum qeth_ipa_isolation_modes isolation;
747 enum qeth_ipa_isolation_modes prev_isolation;
753 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
754 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
757 * thread bits for qeth_card thread masks
760 QETH_RECOVER_THREAD = 1,
763 struct qeth_osn_info {
764 int (*assist_cb)(struct net_device *dev, void *data);
765 int (*data_cb)(struct sk_buff *skb);
768 struct qeth_discipline {
769 const struct device_type *devtype;
770 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
771 int (*recover)(void *ptr);
772 int (*setup) (struct ccwgroup_device *);
773 void (*remove) (struct ccwgroup_device *);
774 int (*set_online) (struct ccwgroup_device *);
775 int (*set_offline) (struct ccwgroup_device *);
776 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
777 int (*control_event_handler)(struct qeth_card *card,
778 struct qeth_ipa_cmd *cmd);
781 enum qeth_addr_disposition {
782 QETH_DISP_ADDR_DELETE = 0,
783 QETH_DISP_ADDR_DO_NOTHING = 1,
784 QETH_DISP_ADDR_ADD = 2,
790 struct qdio_buffer_element *b_element;
795 struct carrier_info {
801 struct qeth_switch_info {
806 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
809 enum qeth_card_states state;
811 struct ccwgroup_device *gdev;
812 struct qeth_cmd_buffer *read_cmd;
813 struct qeth_channel read;
814 struct qeth_channel write;
815 struct qeth_channel data;
817 struct net_device *dev;
818 struct qeth_card_stats stats;
819 struct qeth_card_info info;
820 struct qeth_token token;
821 struct qeth_seqno seqno;
822 struct qeth_card_options options;
824 struct workqueue_struct *event_wq;
825 struct workqueue_struct *cmd_wq;
826 wait_queue_head_t wait_q;
827 DECLARE_HASHTABLE(mac_htable, 4);
828 DECLARE_HASHTABLE(ip_htable, 4);
829 struct mutex ip_lock;
830 DECLARE_HASHTABLE(ip_mc_htable, 4);
831 struct work_struct rx_mode_work;
832 struct work_struct kernel_thread_starter;
833 spinlock_t thread_mask_lock;
834 unsigned long thread_start_mask;
835 unsigned long thread_allowed_mask;
836 unsigned long thread_running_mask;
837 struct qeth_ipato ipato;
838 struct list_head cmd_waiter_list;
839 /* QDIO buffer handling */
840 struct qeth_qdio_info qdio;
841 int read_or_write_problem;
842 struct qeth_osn_info osn_info;
843 struct qeth_discipline *discipline;
844 atomic_t force_alloc_skb;
845 struct service_level qeth_service_level;
846 struct qdio_ssqd_desc ssqd;
848 struct mutex sbp_lock;
849 struct mutex conf_mutex;
850 struct mutex discipline_mutex;
851 struct napi_struct napi;
853 struct delayed_work buffer_reclaim_work;
855 struct work_struct close_dev_work;
858 static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
860 return card->state == CARD_STATE_SOFTSETUP;
863 struct qeth_trap_id {
871 /*some helper functions*/
872 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
874 static inline bool qeth_netdev_is_registered(struct net_device *dev)
876 return dev->netdev_ops != NULL;
879 static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
881 if (txq == QETH_IQD_MCAST_TXQ)
882 return dev->num_tx_queues - 1;
883 if (txq == dev->num_tx_queues - 1)
884 return QETH_IQD_MCAST_TXQ;
888 static inline bool qeth_iqd_is_mcast_queue(struct qeth_card *card,
889 struct qeth_qdio_out_q *queue)
891 return qeth_iqd_translate_txq(card->dev, queue->queue_no) ==
895 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
896 unsigned int elements)
900 for (i = 0; i < elements; i++)
901 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
902 buf->element[14].sflags = 0;
903 buf->element[15].sflags = 0;
907 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
908 * @start: Start of the address range.
909 * @end: Address after the end of the range.
911 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
912 * the specified address range.
914 static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
916 return PFN_UP(end) - PFN_DOWN(start);
919 static inline int qeth_get_ip_version(struct sk_buff *skb)
921 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
922 __be16 prot = veth->h_vlan_proto;
924 if (prot == htons(ETH_P_8021Q))
925 prot = veth->h_vlan_encapsulated_proto;
928 case htons(ETH_P_IPV6):
930 case htons(ETH_P_IP):
937 static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
939 u8 *addr = eth_hdr(skb)->h_dest;
941 if (is_multicast_ether_addr(addr))
942 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
947 static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv)
949 struct dst_entry *dst = skb_dst(skb);
952 rt = (struct rt6_info *) dst;
954 dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0);
958 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb,
961 if ((card->dev->features & NETIF_F_RXCSUM) &&
962 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) {
963 skb->ip_summed = CHECKSUM_UNNECESSARY;
964 QETH_CARD_STAT_INC(card, rx_skb_csum);
966 skb->ip_summed = CHECKSUM_NONE;
970 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
972 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
973 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
974 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
975 *flags |= QETH_HDR_EXT_UDP;
978 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
979 struct qeth_buffer_pool_entry *entry)
981 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
984 static inline int qeth_is_diagass_supported(struct qeth_card *card,
985 enum qeth_diags_cmds cmd)
987 return card->info.diagass_support & (__u32)cmd;
990 int qeth_send_simple_setassparms_prot(struct qeth_card *card,
991 enum qeth_ipa_funcs ipa_func,
992 u16 cmd_code, u32 *data,
993 enum qeth_prot_versions prot);
995 static inline int qeth_send_simple_setassparms(struct qeth_card *card,
996 enum qeth_ipa_funcs ipa_func,
997 u16 cmd_code, u32 *data)
999 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1000 data, QETH_PROT_IPV4);
1003 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
1004 enum qeth_ipa_funcs ipa_func,
1005 u16 cmd_code, u32 *data)
1007 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
1008 data, QETH_PROT_IPV6);
1011 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
1013 extern struct qeth_discipline qeth_l2_discipline;
1014 extern struct qeth_discipline qeth_l3_discipline;
1015 extern const struct ethtool_ops qeth_ethtool_ops;
1016 extern const struct ethtool_ops qeth_osn_ethtool_ops;
1017 extern const struct attribute_group *qeth_generic_attr_groups[];
1018 extern const struct attribute_group *qeth_osn_attr_groups[];
1019 extern const struct attribute_group qeth_device_attr_group;
1020 extern const struct attribute_group qeth_device_blkt_group;
1021 extern const struct device_type qeth_generic_devtype;
1023 const char *qeth_get_cardname_short(struct qeth_card *);
1024 int qeth_realloc_buffer_pool(struct qeth_card *, int);
1025 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
1026 void qeth_core_free_discipline(struct qeth_card *);
1028 /* exports for qeth discipline device drivers */
1029 extern struct kmem_cache *qeth_core_header_cache;
1030 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
1032 struct net_device *qeth_clone_netdev(struct net_device *orig);
1033 struct qeth_card *qeth_get_card_by_busid(char *bus_id);
1034 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
1035 int qeth_threads_running(struct qeth_card *, unsigned long);
1036 int qeth_do_run_thread(struct qeth_card *, unsigned long);
1037 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
1038 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
1039 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok);
1040 void qeth_print_status_message(struct qeth_card *);
1041 int qeth_init_qdio_queues(struct qeth_card *);
1042 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
1044 (struct qeth_card *, struct qeth_reply *, unsigned long),
1046 struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card,
1047 enum qeth_ipa_cmds cmd_code,
1048 enum qeth_prot_versions prot,
1049 unsigned int data_length);
1050 struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel,
1051 unsigned int length, unsigned int ccws,
1053 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
1054 enum qeth_ipa_funcs ipa_func,
1056 unsigned int data_length,
1057 enum qeth_prot_versions prot);
1058 struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card,
1059 enum qeth_diags_cmds sub_cmd,
1060 unsigned int data_length);
1061 void qeth_notify_cmd(struct qeth_cmd_buffer *iob, int reason);
1062 void qeth_put_cmd(struct qeth_cmd_buffer *iob);
1064 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
1065 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
1066 struct qeth_hdr **);
1067 void qeth_schedule_recovery(struct qeth_card *);
1068 int qeth_poll(struct napi_struct *napi, int budget);
1069 void qeth_clear_ipacmd_list(struct qeth_card *);
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 *);
1076 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1078 int qeth_query_switch_attributes(struct qeth_card *card,
1079 struct qeth_switch_info *sw_info);
1080 int qeth_query_card_info(struct qeth_card *card,
1081 struct carrier_info *carrier_info);
1082 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
1083 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1084 struct sk_buff *skb, struct qeth_hdr *hdr,
1085 unsigned int offset, unsigned int hd_len,
1086 int elements_needed);
1087 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1088 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1089 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
1090 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1091 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
1092 void qeth_trace_features(struct qeth_card *);
1093 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1094 int qeth_set_features(struct net_device *, netdev_features_t);
1095 void qeth_enable_hw_features(struct net_device *dev);
1096 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1097 netdev_features_t qeth_features_check(struct sk_buff *skb,
1098 struct net_device *dev,
1099 netdev_features_t features);
1100 void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
1101 u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
1102 u8 cast_type, struct net_device *sb_dev);
1103 int qeth_open(struct net_device *dev);
1104 int qeth_stop(struct net_device *dev);
1106 int qeth_vm_request_mac(struct qeth_card *card);
1107 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1108 struct qeth_qdio_out_q *queue, int ipv,
1109 void (*fill_header)(struct qeth_qdio_out_q *queue,
1110 struct qeth_hdr *hdr, struct sk_buff *skb,
1111 int ipv, unsigned int data_len));
1113 /* exports for OSN */
1114 int qeth_osn_assist(struct net_device *, void *, int);
1115 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1116 int (*assist_cb)(struct net_device *, void *),
1117 int (*data_cb)(struct sk_buff *));
1118 void qeth_osn_deregister(struct net_device *);
1120 #endif /* __QETH_CORE_H__ */