2 * linux/drivers/net/ehea/ehea.h
4 * eHEA ethernet device driver for IBM eServer System p
6 * (C) Copyright IBM Corp. 2006
9 * Christoph Raisch <raisch@de.ibm.com>
10 * Jan-Bernd Themann <themann@de.ibm.com>
11 * Thomas Klein <tklein@de.ibm.com>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 #include <linux/module.h>
33 #include <linux/ethtool.h>
34 #include <linux/vmalloc.h>
35 #include <linux/if_vlan.h>
37 #include <asm/ibmebus.h>
38 #include <asm/abs_addr.h>
41 #define DRV_NAME "ehea"
42 #define DRV_VERSION "EHEA_0053"
44 #define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \
45 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
47 #define EHEA_MAX_ENTRIES_RQ1 32767
48 #define EHEA_MAX_ENTRIES_RQ2 16383
49 #define EHEA_MAX_ENTRIES_RQ3 16383
50 #define EHEA_MAX_ENTRIES_SQ 32767
51 #define EHEA_MIN_ENTRIES_QP 127
53 #define EHEA_SMALL_QUEUES
54 #define EHEA_NUM_TX_QP 1
56 #ifdef EHEA_SMALL_QUEUES
57 #define EHEA_MAX_CQE_COUNT 1023
58 #define EHEA_DEF_ENTRIES_SQ 1023
59 #define EHEA_DEF_ENTRIES_RQ1 4095
60 #define EHEA_DEF_ENTRIES_RQ2 1023
61 #define EHEA_DEF_ENTRIES_RQ3 1023
63 #define EHEA_MAX_CQE_COUNT 4080
64 #define EHEA_DEF_ENTRIES_SQ 4080
65 #define EHEA_DEF_ENTRIES_RQ1 8160
66 #define EHEA_DEF_ENTRIES_RQ2 2040
67 #define EHEA_DEF_ENTRIES_RQ3 2040
70 #define EHEA_MAX_ENTRIES_EQ 20
77 #define EHEA_MAX_PACKET_SIZE 9022 /* for jumbo frames */
78 #define EHEA_RQ2_PKT_SIZE 1522
79 #define EHEA_L_PKT_SIZE 256 /* low latency */
81 /* Send completion signaling */
82 #define EHEA_SIG_IV_LONG 1
84 /* Protection Domain Identifier */
85 #define EHEA_PD_ID 0xaabcdeff
87 #define EHEA_RQ2_THRESHOLD 1
88 #define EHEA_RQ3_THRESHOLD 9 /* use RQ3 threshold of 1522 bytes */
90 #define EHEA_SPEED_10G 10000
91 #define EHEA_SPEED_1G 1000
92 #define EHEA_SPEED_100M 100
93 #define EHEA_SPEED_10M 10
94 #define EHEA_SPEED_AUTONEG 0
96 /* Broadcast/Multicast registration types */
97 #define EHEA_BCMC_SCOPE_ALL 0x08
98 #define EHEA_BCMC_SCOPE_SINGLE 0x00
99 #define EHEA_BCMC_MULTICAST 0x04
100 #define EHEA_BCMC_BROADCAST 0x00
101 #define EHEA_BCMC_UNTAGGED 0x02
102 #define EHEA_BCMC_TAGGED 0x00
103 #define EHEA_BCMC_VLANID_ALL 0x01
104 #define EHEA_BCMC_VLANID_SINGLE 0x00
106 #define EHEA_CACHE_LINE 128
109 #define EHEA_MR_MAX_TX_PAGES 20
110 #define EHEA_MR_TX_DATA_PN 3
111 #define EHEA_MR_ACC_CTRL 0x00800000
112 #define EHEA_RWQES_PER_MR_RQ2 10
113 #define EHEA_RWQES_PER_MR_RQ3 10
115 #define EHEA_WATCH_DOG_TIMEOUT 10*HZ
117 /* utility functions */
119 #define ehea_info(fmt, args...) \
120 printk(KERN_INFO DRV_NAME ": " fmt "\n", ## args)
122 #define ehea_error(fmt, args...) \
123 printk(KERN_ERR DRV_NAME ": Error in %s: " fmt "\n", __func__, ## args)
126 #define ehea_debug(fmt, args...) \
127 printk(KERN_DEBUG DRV_NAME ": " fmt, ## args)
129 #define ehea_debug(fmt, args...) do {} while (0)
132 void ehea_dump(void *adr
, int len
, char *msg
);
134 #define EHEA_BMASK(pos, length) (((pos) << 16) + (length))
136 #define EHEA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1))
138 #define EHEA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff)
140 #define EHEA_BMASK_MASK(mask) \
141 (0xffffffffffffffffULL >> ((64 - (mask)) & 0xffff))
143 #define EHEA_BMASK_SET(mask, value) \
144 ((EHEA_BMASK_MASK(mask) & ((u64)(value))) << EHEA_BMASK_SHIFTPOS(mask))
146 #define EHEA_BMASK_GET(mask, value) \
147 (EHEA_BMASK_MASK(mask) & (((u64)(value)) >> EHEA_BMASK_SHIFTPOS(mask)))
153 u8 entries
[PAGE_SIZE
];
157 * Generic queue in linux kernel virtual memory
160 u64 current_q_offset
; /* current queue entry */
161 struct ehea_page
**queue_pages
; /* array of pages belonging to queue */
162 u32 qe_size
; /* queue entry size */
163 u32 queue_length
; /* queue length allocated in bytes */
165 u32 toggle_state
; /* toggle flag - per page */
166 u32 reserved
; /* 64 bit alignment */
170 * For pSeries this is a 64bit memory address where
171 * I/O memory is mapped into CPU address space
182 struct h_epa kernel
; /* kernel space accessible resource,
183 set to 0 if unused */
184 struct h_epa_user user
; /* user space accessible resource
185 set to 0 if unused */
195 * Queue attributes passed to ehea_create_qp()
197 struct ehea_qp_init_attr
{
198 /* input parameter */
199 u32 qp_token
; /* queue token */
201 u8 signalingtype
; /* cqe generation flag */
202 u8 rq_count
; /* num of receive queues */
203 u8 eqe_gen
; /* eqe generation flag */
204 u16 max_nr_send_wqes
; /* max number of send wqes */
205 u16 max_nr_rwqes_rq1
; /* max number of receive wqes */
206 u16 max_nr_rwqes_rq2
;
207 u16 max_nr_rwqes_rq3
;
212 u8 swqe_imm_data_len
; /* immediate data length for swqes */
220 /* output parameter */
222 u16 act_nr_send_wqes
;
223 u16 act_nr_rwqes_rq1
;
224 u16 act_nr_rwqes_rq2
;
225 u16 act_nr_rwqes_rq3
;
226 u8 act_wqe_size_enc_sq
;
227 u8 act_wqe_size_enc_rq1
;
228 u8 act_wqe_size_enc_rq2
;
229 u8 act_wqe_size_enc_rq3
;
241 * Event Queue attributes, passed as paramter
243 struct ehea_eq_attr
{
246 u8 eqe_gen
; /* generate eqe flag */
250 u32 ist1
; /* Interrupt service token */
261 struct ehea_adapter
*adapter
;
262 struct hw_queue hw_queue
;
266 struct ehea_eq_attr attr
;
273 struct ehea_adapter
*adapter
;
274 u64 fw_handle
; /* QP handle for firmware calls */
275 struct hw_queue hw_squeue
;
276 struct hw_queue hw_rqueue1
;
277 struct hw_queue hw_rqueue2
;
278 struct hw_queue hw_rqueue3
;
280 struct ehea_qp_init_attr init_attr
;
284 * Completion Queue attributes
286 struct ehea_cq_attr
{
287 /* input parameter */
292 /* output parameter */
301 struct ehea_adapter
*adapter
;
303 struct hw_queue hw_queue
;
305 struct ehea_cq_attr attr
;
318 * Port state information
321 int poll_max_processed
;
322 int poll_receive_errors
;
333 #define EHEA_IRQ_NAME_SIZE 20
338 struct ehea_q_skb_arr
{
339 struct sk_buff
**arr
; /* skb array for queue */
340 int len
; /* array length */
341 int index
; /* array index */
342 int os_skbs
; /* rq2/rq3 only: outstanding skbs */
348 struct ehea_port_res
{
349 struct ehea_mr send_mr
; /* send memory region */
350 struct ehea_mr recv_mr
; /* receive memory region */
351 spinlock_t xmit_lock
;
352 struct ehea_port
*port
;
353 char int_recv_name
[EHEA_IRQ_NAME_SIZE
];
354 char int_send_name
[EHEA_IRQ_NAME_SIZE
];
356 struct ehea_cq
*send_cq
;
357 struct ehea_cq
*recv_cq
;
359 struct net_device
*d_netdev
;
360 spinlock_t send_lock
;
361 struct ehea_q_skb_arr rq1_skba
;
362 struct ehea_q_skb_arr rq2_skba
;
363 struct ehea_q_skb_arr rq3_skba
;
364 struct ehea_q_skb_arr sq_skba
;
365 spinlock_t netif_queue
;
373 spinlock_t recv_lock
;
374 struct port_state p_state
;
380 #define EHEA_MAX_PORTS 16
381 struct ehea_adapter
{
383 struct ibmebus_dev
*ebus_dev
;
384 struct ehea_port
*port
[EHEA_MAX_PORTS
];
385 struct ehea_eq
*neq
; /* notification event queue */
386 struct workqueue_struct
*ehea_wq
;
387 struct tasklet_struct neq_tasklet
;
389 u32 pd
; /* protection domain */
390 u64 max_mc_mac
; /* max number of multicast mac addresses */
394 struct ehea_mc_list
{
395 struct list_head list
;
399 #define EHEA_PORT_UP 1
400 #define EHEA_PORT_DOWN 0
401 #define EHEA_MAX_PORT_RES 16
403 struct ehea_adapter
*adapter
; /* adapter that owns this port */
404 struct net_device
*netdev
;
405 struct net_device_stats stats
;
406 struct ehea_port_res port_res
[EHEA_MAX_PORT_RES
];
407 struct of_device ofdev
; /* Open Firmware Device */
408 struct ehea_mc_list
*mc_list
; /* Multicast MAC addresses */
409 struct vlan_group
*vgrp
;
410 struct ehea_eq
*qp_eq
;
411 struct work_struct reset_task
;
412 struct semaphore port_lock
;
413 char int_aff_name
[EHEA_IRQ_NAME_SIZE
];
414 int allmulti
; /* Indicates IFF_ALLMULTI state */
415 int promisc
; /* Indicates IFF_PROMISC state */
431 struct port_res_cfg
{
441 void ehea_set_ethtool_ops(struct net_device
*netdev
);
442 int ehea_sense_port_attr(struct ehea_port
*port
);
443 int ehea_set_portspeed(struct ehea_port
*port
, u32 port_speed
);
445 #endif /* __EHEA_H__ */