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/wait.h>
26 #include <linux/workqueue.h>
29 #include <net/if_inet6.h>
30 #include <net/addrconf.h>
33 #include <asm/debug.h>
35 #include <asm/ccwdev.h>
36 #include <asm/ccwgroup.h>
37 #include <asm/sysinfo.h>
39 #include <uapi/linux/if_link.h>
41 #include "qeth_core_mpc.h"
44 * Debug Facility stuff
50 QETH_DBF_INFOS /* must be last element */
53 struct qeth_dbf_info {
54 char name[DEBUG_MAX_NAME_LEN];
59 struct debug_view *view;
63 #define QETH_DBF_CTRL_LEN 256
65 #define QETH_DBF_TEXT(name, level, text) \
66 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
68 #define QETH_DBF_HEX(name, level, addr, len) \
69 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
71 #define QETH_DBF_MESSAGE(level, text...) \
72 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
74 #define QETH_DBF_TEXT_(name, level, text...) \
75 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
77 #define QETH_CARD_TEXT(card, level, text) \
78 debug_text_event(card->debug, level, text)
80 #define QETH_CARD_HEX(card, level, addr, len) \
81 debug_event(card->debug, level, (void *)(addr), len)
83 #define QETH_CARD_MESSAGE(card, text...) \
84 debug_sprintf_event(card->debug, level, text)
86 #define QETH_CARD_TEXT_(card, level, text...) \
87 qeth_dbf_longtext(card->debug, level, text)
89 #define SENSE_COMMAND_REJECT_BYTE 0
90 #define SENSE_COMMAND_REJECT_FLAG 0x80
91 #define SENSE_RESETTING_EVENT_BYTE 1
92 #define SENSE_RESETTING_EVENT_FLAG 0x80
94 static inline u32 qeth_get_device_id(struct ccw_device *cdev)
96 struct ccw_dev_id dev_id;
99 ccw_device_get_id(cdev, &dev_id);
101 id |= (u32) (dev_id.ssid << 16);
107 * Common IO related definitions
109 #define CARD_RDEV(card) card->read.ccwdev
110 #define CARD_WDEV(card) card->write.ccwdev
111 #define CARD_DDEV(card) card->data.ccwdev
112 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
113 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
114 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
115 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
116 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev))
117 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card)))
120 struct qeth_routing_info {
121 enum qeth_routing_types type;
125 struct qeth_ipa_info {
126 __u32 supported_funcs;
130 /* SETBRIDGEPORT stuff */
131 enum qeth_sbp_roles {
132 QETH_SBP_ROLE_NONE = 0,
133 QETH_SBP_ROLE_PRIMARY = 1,
134 QETH_SBP_ROLE_SECONDARY = 2,
137 enum qeth_sbp_states {
138 QETH_SBP_STATE_INACTIVE = 0,
139 QETH_SBP_STATE_STANDBY = 1,
140 QETH_SBP_STATE_ACTIVE = 2,
143 #define QETH_SBP_HOST_NOTIFICATION 1
145 struct qeth_sbp_info {
146 __u32 supported_funcs;
147 enum qeth_sbp_roles role;
148 __u32 hostnotification:1;
149 __u32 reflect_promisc:1;
150 __u32 reflect_promisc_primary:1;
153 struct qeth_vnicc_info {
154 /* supported/currently configured VNICCs; updated in IPA exchanges */
157 /* supported commands: bitmasks which VNICCs support respective cmd */
159 u32 getset_timeout_sup;
160 /* timeout value for the learning characteristic */
161 u32 learning_timeout;
162 /* characteristics wanted/configured by user */
164 /* has user explicitly enabled rx_bcast while online? */
165 bool rx_bcast_enabled;
168 static inline int qeth_is_adp_supported(struct qeth_ipa_info *ipa,
169 enum qeth_ipa_setadp_cmd func)
171 return (ipa->supported_funcs & func);
174 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
175 enum qeth_ipa_funcs func)
177 return (ipa->supported_funcs & func);
180 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
181 enum qeth_ipa_funcs func)
183 return (ipa->supported_funcs & ipa->enabled_funcs & func);
186 #define qeth_adp_supported(c, f) \
187 qeth_is_adp_supported(&c->options.adp, f)
188 #define qeth_is_supported(c, f) \
189 qeth_is_ipa_supported(&c->options.ipa4, f)
190 #define qeth_is_enabled(c, f) \
191 qeth_is_ipa_enabled(&c->options.ipa4, f)
192 #define qeth_is_supported6(c, f) \
193 qeth_is_ipa_supported(&c->options.ipa6, f)
194 #define qeth_is_enabled6(c, f) \
195 qeth_is_ipa_enabled(&c->options.ipa6, f)
196 #define qeth_is_ipafunc_supported(c, prot, f) \
197 ((prot == QETH_PROT_IPV6) ? \
198 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
199 #define qeth_is_ipafunc_enabled(c, prot, f) \
200 ((prot == QETH_PROT_IPV6) ? \
201 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
203 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101
204 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108
206 #define QETH_BUFSIZE 4096
207 #define CCW_CMD_WRITE 0x01
208 #define CCW_CMD_READ 0x02
213 #define QETH_TX_TIMEOUT 100 * HZ
214 #define QETH_RCD_TIMEOUT 60 * HZ
215 #define QETH_RECLAIM_WORK_TIME HZ
216 #define QETH_MAX_PORTNO 15
218 /*IPv6 address autoconfiguration stuff*/
219 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
220 #define UNIQUE_ID_NOT_BY_CARD 0x10000
222 /*****************************************************************************/
223 /* QDIO queue and buffer handling */
224 /*****************************************************************************/
225 #define QETH_MAX_QUEUES 4
226 #define QETH_IQD_MIN_TXQ 2 /* One for ucast, one for mcast. */
227 #define QETH_IQD_MCAST_TXQ 0
228 #define QETH_IQD_MIN_UCAST_TXQ 1
229 #define QETH_IN_BUF_SIZE_DEFAULT 65536
230 #define QETH_IN_BUF_COUNT_DEFAULT 64
231 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
232 #define QETH_IN_BUF_COUNT_MIN 8
233 #define QETH_IN_BUF_COUNT_MAX 128
234 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
235 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
236 ((card)->qdio.in_buf_pool.buf_count / 2)
238 /* buffers we have to be behind before we get a PCI */
239 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
240 /*enqueued free buffers left before we get a PCI*/
241 #define QETH_PCI_THRESHOLD_B(card) 0
242 /*not used unless the microcode gets patched*/
243 #define QETH_PCI_TIMER_VALUE(card) 3
245 /* priority queing */
246 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
247 #define QETH_DEFAULT_QUEUE 2
248 #define QETH_NO_PRIO_QUEUEING 0
249 #define QETH_PRIO_Q_ING_PREC 1
250 #define QETH_PRIO_Q_ING_TOS 2
251 #define QETH_PRIO_Q_ING_SKB 3
252 #define QETH_PRIO_Q_ING_VLAN 4
255 #define QETH_LOW_WATERMARK_PACK 2
256 #define QETH_HIGH_WATERMARK_PACK 5
257 #define QETH_WATERMARK_PACK_FUZZ 1
259 /* large receive scatter gather copy break */
260 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
261 #define QETH_RX_PULL_LEN 256
263 struct qeth_hdr_layer3 {
266 __u16 inbound_checksum; /*TSO:__u16 seqno */
267 __u32 token; /*TSO: __u32 reserved */
275 struct in6_addr ipv6_addr;
291 struct qeth_hdr_layer2 {
301 } __attribute__ ((packed));
303 struct qeth_hdr_osn {
312 } __attribute__ ((packed));
316 struct qeth_hdr_layer2 l2;
317 struct qeth_hdr_layer3 l3;
318 struct qeth_hdr_osn osn;
320 } __attribute__ ((packed));
322 /*TCP Segmentation Offload header*/
323 struct qeth_hdr_ext_tso {
334 } __attribute__ ((packed));
336 struct qeth_hdr_tso {
337 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
338 struct qeth_hdr_ext_tso ext;
339 } __attribute__ ((packed));
342 /* flags for qeth_hdr.flags */
343 #define QETH_HDR_PASSTHRU 0x10
344 #define QETH_HDR_IPV6 0x80
345 #define QETH_HDR_CAST_MASK 0x07
346 enum qeth_cast_flags {
347 QETH_CAST_UNICAST = 0x06,
348 QETH_CAST_MULTICAST = 0x04,
349 QETH_CAST_BROADCAST = 0x05,
350 QETH_CAST_ANYCAST = 0x07,
351 QETH_CAST_NOCAST = 0x00,
354 enum qeth_layer2_frame_flags {
355 QETH_LAYER2_FLAG_MULTICAST = 0x01,
356 QETH_LAYER2_FLAG_BROADCAST = 0x02,
357 QETH_LAYER2_FLAG_UNICAST = 0x04,
358 QETH_LAYER2_FLAG_VLAN = 0x10,
361 enum qeth_header_ids {
362 QETH_HEADER_TYPE_LAYER3 = 0x01,
363 QETH_HEADER_TYPE_LAYER2 = 0x02,
364 QETH_HEADER_TYPE_L3_TSO = 0x03,
365 QETH_HEADER_TYPE_OSN = 0x04,
366 QETH_HEADER_TYPE_L2_TSO = 0x06,
368 /* flags for qeth_hdr.ext_flags */
369 #define QETH_HDR_EXT_VLAN_FRAME 0x01
370 #define QETH_HDR_EXT_TOKEN_ID 0x02
371 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
372 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08
373 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10
374 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20
375 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/
377 enum qeth_qdio_info_states {
378 QETH_QDIO_UNINITIALIZED,
380 QETH_QDIO_ESTABLISHED,
384 struct qeth_buffer_pool_entry {
385 struct list_head list;
386 struct list_head init_list;
387 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
390 struct qeth_qdio_buffer_pool {
391 struct list_head entry_list;
395 struct qeth_qdio_buffer {
396 struct qdio_buffer *buffer;
397 /* the buffer pool entry currently associated to this buffer */
398 struct qeth_buffer_pool_entry *pool_entry;
399 struct sk_buff *rx_skb;
403 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
404 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
405 int next_buf_to_init;
408 enum qeth_qdio_out_buffer_state {
409 /* Owned by driver, in order to be filled. */
411 /* Filled by driver; owned by hardware in order to be sent. */
412 QETH_QDIO_BUF_PRIMED,
413 /* Identified to be pending in TPQ. */
414 QETH_QDIO_BUF_PENDING,
415 /* Found in completion queue. */
417 /* Handled via transfer pending / completion queue. */
418 QETH_QDIO_BUF_HANDLED_DELAYED,
421 struct qeth_qdio_out_buffer {
422 struct qdio_buffer *buffer;
424 int next_element_to_fill;
425 struct sk_buff_head skb_list;
426 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
428 struct qeth_qdio_out_q *q;
429 struct qeth_qdio_out_buffer *next_pending;
434 enum qeth_out_q_states {
437 QETH_OUT_Q_LOCKED_FLUSH,
440 #define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val))
441 #define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1)
443 #define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val))
444 #define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1)
446 struct qeth_card_stats {
451 u64 rx_sg_alloc_page;
453 /* rtnl_link_stats64 */
461 struct qeth_out_q_stats {
470 u64 skbs_linearized_fail;
472 u64 packing_mode_switch;
475 /* rtnl_link_stats64 */
482 struct qeth_qdio_out_q {
483 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
484 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
485 struct qdio_outbuf_state *bufstates; /* convenience pointer */
486 struct qeth_out_q_stats stats;
491 struct qeth_card *card;
494 * number of buffers that are currently filled (PRIMED)
495 * -> these buffers are hardware-owned
497 atomic_t used_buffers;
498 /* indicates whether PCI flag must be set (or if one is outstanding) */
499 atomic_t set_pci_flags_count;
502 static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue)
504 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q;
507 struct qeth_qdio_info {
511 struct qeth_qdio_q *in_q;
512 struct qeth_qdio_q *c_q;
513 struct qeth_qdio_buffer_pool in_buf_pool;
514 struct qeth_qdio_buffer_pool init_pool;
519 struct qeth_qdio_out_q *out_qs[QETH_MAX_QUEUES];
520 struct qdio_outbuf_state *out_bufstates;
522 /* priority queueing */
523 int do_prio_queueing;
524 int default_out_queue;
528 * buffer stuff for read channel
530 #define QETH_CMD_BUFFER_NO 8
533 * channel state machine
535 enum qeth_channel_states {
544 enum qeth_card_states {
546 CARD_STATE_HARDSETUP,
547 CARD_STATE_SOFTSETUP,
553 enum qeth_prot_versions {
554 QETH_PROT_IPV4 = 0x0004,
555 QETH_PROT_IPV6 = 0x0006,
558 enum qeth_cmd_buffer_state {
565 QETH_CQ_DISABLED = 0,
567 QETH_CQ_NOTAVAILABLE = 2,
574 struct list_head entries;
579 struct qeth_cmd_buffer {
580 enum qeth_cmd_buffer_state state;
582 refcount_t ref_count;
583 struct qeth_channel *channel;
584 struct qeth_reply *reply;
587 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob,
588 unsigned int length);
589 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob);
592 static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob)
594 refcount_inc(&iob->ref_count);
597 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
599 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
603 * definition of a qeth channel, used for read and write
605 struct qeth_channel {
606 enum qeth_channel_states state;
609 wait_queue_head_t wait_q;
610 struct ccw_device *ccwdev;
611 /*command buffer for control data*/
612 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
613 atomic_t irq_pending;
617 static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob)
619 if (iob->state != BUF_STATE_MALLOC)
620 return iob->channel->ccw;
621 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8));
624 static inline bool qeth_trylock_channel(struct qeth_channel *channel)
626 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0;
630 * OSA card related definitions
637 __u32 cm_connection_w;
638 __u32 cm_connection_r;
641 __u32 ulp_connection_w;
642 __u32 ulp_connection_r;
653 struct list_head list;
654 struct completion received;
655 int (*callback)(struct qeth_card *, struct qeth_reply *,
658 unsigned long offset;
664 struct qeth_card_blkt {
667 int inter_packet_jumbo;
670 #define QETH_BROADCAST_WITH_ECHO 0x01
671 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
672 #define QETH_LAYER2_MAC_REGISTERED 0x02
673 struct qeth_card_info {
674 unsigned short unit_addr2;
676 unsigned short chpid;
678 char mcl_level[QETH_MCL_LENGTH + 1];
679 u8 open_when_online:1;
683 enum qeth_card_types type;
684 enum qeth_link_types link_type;
685 int broadcast_capable;
688 struct qeth_card_blkt blkt;
689 enum qeth_ipa_promisc_modes promisc_mode;
690 __u32 diagass_support;
694 enum qeth_discipline_id {
695 QETH_DISCIPLINE_UNDETERMINED = -1,
696 QETH_DISCIPLINE_LAYER3 = 0,
697 QETH_DISCIPLINE_LAYER2 = 1,
700 struct qeth_card_options {
701 struct qeth_routing_info route4;
702 struct qeth_ipa_info ipa4;
703 struct qeth_ipa_info adp; /*Adapter parameters*/
704 struct qeth_routing_info route6;
705 struct qeth_ipa_info ipa6;
706 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
707 struct qeth_vnicc_info vnicc; /* VNICC options */
709 enum qeth_discipline_id layer;
711 enum qeth_ipa_isolation_modes isolation;
712 enum qeth_ipa_isolation_modes prev_isolation;
718 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
719 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
722 * thread bits for qeth_card thread masks
725 QETH_RECOVER_THREAD = 1,
728 struct qeth_osn_info {
729 int (*assist_cb)(struct net_device *dev, void *data);
730 int (*data_cb)(struct sk_buff *skb);
733 struct qeth_discipline {
734 const struct device_type *devtype;
735 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
736 int (*recover)(void *ptr);
737 int (*setup) (struct ccwgroup_device *);
738 void (*remove) (struct ccwgroup_device *);
739 int (*set_online) (struct ccwgroup_device *);
740 int (*set_offline) (struct ccwgroup_device *);
741 int (*freeze)(struct ccwgroup_device *);
742 int (*thaw) (struct ccwgroup_device *);
743 int (*restore)(struct ccwgroup_device *);
744 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
745 int (*control_event_handler)(struct qeth_card *card,
746 struct qeth_ipa_cmd *cmd);
749 enum qeth_addr_disposition {
750 QETH_DISP_ADDR_DELETE = 0,
751 QETH_DISP_ADDR_DO_NOTHING = 1,
752 QETH_DISP_ADDR_ADD = 2,
758 struct qdio_buffer_element *b_element;
763 struct carrier_info {
769 struct qeth_switch_info {
774 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
777 enum qeth_card_states state;
779 struct ccwgroup_device *gdev;
780 struct qeth_cmd_buffer *read_cmd;
781 struct qeth_channel read;
782 struct qeth_channel write;
783 struct qeth_channel data;
785 struct net_device *dev;
786 struct qeth_card_stats stats;
787 struct qeth_card_info info;
788 struct qeth_token token;
789 struct qeth_seqno seqno;
790 struct qeth_card_options options;
792 struct workqueue_struct *event_wq;
793 struct workqueue_struct *cmd_wq;
794 wait_queue_head_t wait_q;
795 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
796 DECLARE_HASHTABLE(mac_htable, 4);
797 DECLARE_HASHTABLE(ip_htable, 4);
798 struct mutex ip_lock;
799 DECLARE_HASHTABLE(ip_mc_htable, 4);
800 struct work_struct rx_mode_work;
801 struct work_struct kernel_thread_starter;
802 spinlock_t thread_mask_lock;
803 unsigned long thread_start_mask;
804 unsigned long thread_allowed_mask;
805 unsigned long thread_running_mask;
806 struct qeth_ipato ipato;
807 struct list_head cmd_waiter_list;
808 /* QDIO buffer handling */
809 struct qeth_qdio_info qdio;
810 int read_or_write_problem;
811 struct qeth_osn_info osn_info;
812 struct qeth_discipline *discipline;
813 atomic_t force_alloc_skb;
814 struct service_level qeth_service_level;
815 struct qdio_ssqd_desc ssqd;
817 struct mutex conf_mutex;
818 struct mutex discipline_mutex;
819 struct napi_struct napi;
821 struct delayed_work buffer_reclaim_work;
823 struct work_struct close_dev_work;
826 static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
828 return card->state == CARD_STATE_SOFTSETUP;
831 struct qeth_trap_id {
839 /*some helper functions*/
840 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
842 static inline bool qeth_netdev_is_registered(struct net_device *dev)
844 return dev->netdev_ops != NULL;
847 static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq)
849 if (txq == QETH_IQD_MCAST_TXQ)
850 return dev->num_tx_queues - 1;
851 if (txq == dev->num_tx_queues - 1)
852 return QETH_IQD_MCAST_TXQ;
856 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf,
857 unsigned int elements)
861 for (i = 0; i < elements; i++)
862 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element));
863 buf->element[14].sflags = 0;
864 buf->element[15].sflags = 0;
868 * qeth_get_elements_for_range() - find number of SBALEs to cover range.
869 * @start: Start of the address range.
870 * @end: Address after the end of the range.
872 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
873 * the specified address range.
875 static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
877 return PFN_UP(end) - PFN_DOWN(start);
880 static inline int qeth_get_ip_version(struct sk_buff *skb)
882 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
883 __be16 prot = veth->h_vlan_proto;
885 if (prot == htons(ETH_P_8021Q))
886 prot = veth->h_vlan_encapsulated_proto;
889 case htons(ETH_P_IPV6):
891 case htons(ETH_P_IP):
898 static inline int qeth_get_ether_cast_type(struct sk_buff *skb)
900 u8 *addr = eth_hdr(skb)->h_dest;
902 if (is_multicast_ether_addr(addr))
903 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST :
908 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb,
911 if ((card->dev->features & NETIF_F_RXCSUM) &&
912 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) {
913 skb->ip_summed = CHECKSUM_UNNECESSARY;
914 QETH_CARD_STAT_INC(card, rx_skb_csum);
916 skb->ip_summed = CHECKSUM_NONE;
920 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
922 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
923 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
924 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
925 *flags |= QETH_HDR_EXT_UDP;
928 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
929 struct qeth_buffer_pool_entry *entry)
931 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
934 static inline int qeth_is_diagass_supported(struct qeth_card *card,
935 enum qeth_diags_cmds cmd)
937 return card->info.diagass_support & (__u32)cmd;
940 int qeth_send_simple_setassparms_prot(struct qeth_card *card,
941 enum qeth_ipa_funcs ipa_func,
942 u16 cmd_code, long data,
943 enum qeth_prot_versions prot);
945 static inline int qeth_send_simple_setassparms(struct qeth_card *card,
946 enum qeth_ipa_funcs ipa_func,
947 u16 cmd_code, long data)
949 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
950 data, QETH_PROT_IPV4);
953 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
954 enum qeth_ipa_funcs ipa_func,
955 u16 cmd_code, long data)
957 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
958 data, QETH_PROT_IPV6);
961 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb);
963 extern struct qeth_discipline qeth_l2_discipline;
964 extern struct qeth_discipline qeth_l3_discipline;
965 extern const struct ethtool_ops qeth_ethtool_ops;
966 extern const struct ethtool_ops qeth_osn_ethtool_ops;
967 extern const struct attribute_group *qeth_generic_attr_groups[];
968 extern const struct attribute_group *qeth_osn_attr_groups[];
969 extern const struct attribute_group qeth_device_attr_group;
970 extern const struct attribute_group qeth_device_blkt_group;
971 extern const struct device_type qeth_generic_devtype;
973 const char *qeth_get_cardname_short(struct qeth_card *);
974 int qeth_realloc_buffer_pool(struct qeth_card *, int);
975 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
976 void qeth_core_free_discipline(struct qeth_card *);
978 /* exports for qeth discipline device drivers */
979 extern struct kmem_cache *qeth_core_header_cache;
980 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
982 struct net_device *qeth_clone_netdev(struct net_device *orig);
983 struct qeth_card *qeth_get_card_by_busid(char *bus_id);
984 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
985 int qeth_threads_running(struct qeth_card *, unsigned long);
986 int qeth_do_run_thread(struct qeth_card *, unsigned long);
987 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
988 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
989 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok);
990 void qeth_print_status_message(struct qeth_card *);
991 int qeth_init_qdio_queues(struct qeth_card *);
992 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
994 (struct qeth_card *, struct qeth_reply *, unsigned long),
996 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
997 enum qeth_ipa_cmds, enum qeth_prot_versions);
998 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
999 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
1000 struct qeth_hdr **);
1001 void qeth_schedule_recovery(struct qeth_card *);
1002 int qeth_poll(struct napi_struct *napi, int budget);
1003 void qeth_clear_ipacmd_list(struct qeth_card *);
1004 int qeth_qdio_clear_card(struct qeth_card *, int);
1005 void qeth_clear_working_pool_list(struct qeth_card *);
1006 void qeth_clear_cmd_buffers(struct qeth_channel *);
1007 void qeth_drain_output_queues(struct qeth_card *card);
1008 void qeth_setadp_promisc_mode(struct qeth_card *);
1009 int qeth_setadpparms_change_macaddr(struct qeth_card *);
1010 void qeth_tx_timeout(struct net_device *);
1011 void qeth_release_buffer(struct qeth_cmd_buffer *iob);
1012 void qeth_notify_reply(struct qeth_reply *reply, int reason);
1013 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1015 struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel);
1016 int qeth_query_switch_attributes(struct qeth_card *card,
1017 struct qeth_switch_info *sw_info);
1018 int qeth_query_card_info(struct qeth_card *card,
1019 struct carrier_info *carrier_info);
1020 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
1021 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
1022 struct sk_buff *skb, struct qeth_hdr *hdr,
1023 unsigned int offset, unsigned int hd_len,
1024 int elements_needed);
1025 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1026 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
1027 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
1028 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
1029 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
1030 void qeth_trace_features(struct qeth_card *);
1031 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1032 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
1033 enum qeth_ipa_funcs,
1035 enum qeth_prot_versions);
1036 int qeth_set_features(struct net_device *, netdev_features_t);
1037 void qeth_enable_hw_features(struct net_device *dev);
1038 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1039 netdev_features_t qeth_features_check(struct sk_buff *skb,
1040 struct net_device *dev,
1041 netdev_features_t features);
1042 void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
1043 u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
1044 u8 cast_type, struct net_device *sb_dev);
1045 int qeth_open(struct net_device *dev);
1046 int qeth_stop(struct net_device *dev);
1048 int qeth_vm_request_mac(struct qeth_card *card);
1049 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
1050 struct qeth_qdio_out_q *queue, int ipv, int cast_type,
1051 void (*fill_header)(struct qeth_qdio_out_q *queue,
1052 struct qeth_hdr *hdr, struct sk_buff *skb,
1053 int ipv, int cast_type,
1054 unsigned int data_len));
1056 /* exports for OSN */
1057 int qeth_osn_assist(struct net_device *, void *, int);
1058 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1059 int (*assist_cb)(struct net_device *, void *),
1060 int (*data_cb)(struct sk_buff *));
1061 void qeth_osn_deregister(struct net_device *);
1063 #endif /* __QETH_CORE_H__ */