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gerrit.cesnet.cz / github / trini / u-boot / 28937af2321ebd96e5032508fc9048fc150b8f61 / . / drivers / net / sk98lin / skge.c
blob: df764b4595e783cf547617d9df42dbfd172d9db7 [file] [log] [blame]
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1/******************************************************************************
2 *
3 * Name: skge.c
4 * Project: GEnesis, PCI Gigabit Ethernet Adapter
5 * Version: $Revision: 1.46 $
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]6 * Date: $Date: 2003/02/25 14:16:36 $
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]7 * Purpose: The main driver source module
8 *
9 ******************************************************************************/
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]10
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]11/******************************************************************************
12 *
13 * (C)Copyright 1998-2003 SysKonnect GmbH.
14 *
15 * Driver for SysKonnect Gigabit Ethernet Server Adapters:
16 *
17 * SK-9871 (single link 1000Base-ZX)
18 * SK-9872 (dual link 1000Base-ZX)
19 * SK-9861 (single link 1000Base-SX, VF45 Volition Plug)
20 * SK-9862 (dual link 1000Base-SX, VF45 Volition Plug)
21 * SK-9841 (single link 1000Base-LX)
22 * SK-9842 (dual link 1000Base-LX)
23 * SK-9843 (single link 1000Base-SX)
24 * SK-9844 (dual link 1000Base-SX)
25 * SK-9821 (single link 1000Base-T)
26 * SK-9822 (dual link 1000Base-T)
27 * SK-9881 (single link 1000Base-SX V2 LC)
28 * SK-9871 (single link 1000Base-ZX V2)
29 * SK-9861 (single link 1000Base-SX V2, VF45 Volition Plug)
30 * SK-9841 (single link 1000Base-LX V2)
31 * SK-9843 (single link 1000Base-SX V2)
32 * SK-9821 (single link 1000Base-T V2)
33 *
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]34 * Created 10-Feb-1999, based on Linux' acenic.c, 3c59x.c and
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]35 * SysKonnects GEnesis Solaris driver
36 * Author: Christoph Goos (cgoos@syskonnect.de)
37 * Mirko Lindner (mlindner@syskonnect.de)
38 *
39 * Address all question to: linux@syskonnect.de
40 *
41 * The technical manual for the adapters is available from SysKonnect's
42 * web pages: www.syskonnect.com
43 * Goto "Support" and search Knowledge Base for "manual".
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]44 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]45 * This program is free software; you can redistribute it and/or modify
46 * it under the terms of the GNU General Public License as published by
47 * the Free Software Foundation; either version 2 of the License, or
48 * (at your option) any later version.
49 *
50 * The information in this file is provided "AS IS" without warranty.
51 *
52 ******************************************************************************/
53
54/******************************************************************************
55 *
56 * History:
57 *
58 * $Log: skge.c,v $
59 * Revision 1.46 2003/02/25 14:16:36 mlindner
60 * Fix: Copyright statement
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]61 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]62 * Revision 1.45 2003/02/25 13:25:55 mlindner
63 * Add: Performance improvements
64 * Add: Support for various vendors
65 * Fix: Init function
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]66 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]67 * Revision 1.44 2003/01/09 09:25:26 mlindner
68 * Fix: Remove useless init_module/cleanup_module forward declarations
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]69 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]70 * Revision 1.43 2002/11/29 08:42:41 mlindner
71 * Fix: Boot message
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]72 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]73 * Revision 1.42 2002/11/28 13:30:23 mlindner
74 * Add: New frame check
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]75 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]76 * Revision 1.41 2002/11/27 13:55:18 mlindner
77 * Fix: Drop wrong csum packets
78 * Fix: Initialize proc_entry after hw check
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]79 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]80 * Revision 1.40 2002/10/31 07:50:37 tschilli
81 * Function SkGeInitAssignRamToQueues() from common module inserted.
82 * Autonegotiation is set to ON for all adapters.
83 * LinkSpeedUsed is used in link up status report.
84 * Role parameter will show up for 1000 Mbps links only.
85 * GetConfiguration() inserted after init level 1 in SkGeChangeMtu().
86 * All return values of SkGeInit() and SkGeInitPort() are checked.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]87 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]88 * Revision 1.39 2002/10/02 12:56:05 mlindner
89 * Add: Support for Yukon
90 * Add: Support for ZEROCOPY, scatter-gather and hw checksum
91 * Add: New transmit ring function (use SG and TCP/UDP hardware checksumming)
92 * Add: New init function
93 * Add: Speed check and setup
94 * Add: Merge source for kernel 2.2.x and 2.4.x
95 * Add: Opcode check for tcp
96 * Add: Frame length check
97 * Fix: Transmit complete interrupt
98 * Fix: Interrupt moderation
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]99 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]100 * Revision 1.29.2.13 2002/01/14 12:44:52 mlindner
101 * Fix: Rlmt modes
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]102 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]103 * Revision 1.29.2.12 2001/12/07 12:06:18 mlindner
104 * Fix: malloc -> slab changes
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]105 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]106 * Revision 1.29.2.11 2001/12/06 15:19:20 mlindner
107 * Add: DMA attributes
108 * Fix: Module initialisation
109 * Fix: pci_map_single and pci_unmap_single replaced
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]110 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]111 * Revision 1.29.2.10 2001/12/06 09:56:50 mlindner
112 * Corrected some printk's
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]113 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]114 * Revision 1.29.2.9 2001/09/05 12:15:34 mlindner
115 * Add: LBFO Changes
116 * Fix: Counter Errors (Jumbo == to long errors)
117 * Fix: Changed pAC->PciDev declaration
118 * Fix: too short counters
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]119 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]120 * Revision 1.29.2.8 2001/06/25 12:10:44 mlindner
121 * fix: ReceiveIrq() changed.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]122 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]123 * Revision 1.29.2.7 2001/06/25 08:07:05 mlindner
124 * fix: RLMT locking in ReceiveIrq() changed.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]125 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]126 * Revision 1.29.2.6 2001/05/21 07:59:29 mlindner
127 * fix: MTU init problems
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]128 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]129 * Revision 1.29.2.5 2001/05/08 11:25:08 mlindner
130 * fix: removed VLAN error message
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]131 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]132 * Revision 1.29.2.4 2001/05/04 13:31:43 gklug
133 * fix: do not handle eth_copy on bad fragments received.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]134 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]135 * Revision 1.29.2.3 2001/04/23 08:06:43 mlindner
136 * Fix: error handling
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]137 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]138 * Revision 1.29.2.2 2001/03/15 12:04:54 mlindner
139 * Fixed memory problem
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]140 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]141 * Revision 1.29.2.1 2001/03/12 16:41:44 mlindner
142 * add: procfs function
143 * add: dual-net function
144 * add: RLMT networks
145 * add: extended PNMI features
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]146 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]147 * Kernel 2.4.x specific:
148 * Revision 1.xx 2000/09/12 13:31:56 cgoos
149 * Fixed missign "dev=NULL in skge_probe.
150 * Added counting for jumbo frames (corrects error statistic).
151 * Removed VLAN tag check (enables VLAN support).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]152 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]153 * Kernel 2.2.x specific:
154 * Revision 1.29 2000/02/21 13:31:56 cgoos
155 * Fixed "unused" warning for UltraSPARC change.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]156 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]157 * Partially kernel 2.2.x specific:
158 * Revision 1.28 2000/02/21 10:32:36 cgoos
159 * Added fixes for UltraSPARC.
160 * Now printing RlmtMode and PrefPort setting at startup.
161 * Changed XmitFrame return value.
162 * Fixed rx checksum calculation for BIG ENDIAN systems.
163 * Fixed rx jumbo frames counted as ierrors.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]164 *
165 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]166 * Revision 1.27 1999/11/25 09:06:28 cgoos
167 * Changed base_addr to unsigned long.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]168 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]169 * Revision 1.26 1999/11/22 13:29:16 cgoos
170 * Changed license header to GPL.
171 * Changes for inclusion in linux kernel (2.2.13).
172 * Removed 2.0.x defines.
173 * Changed SkGeProbe to skge_probe.
174 * Added checks in SkGeIoctl.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]175 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]176 * Revision 1.25 1999/10/07 14:47:52 cgoos
177 * Changed 984x to 98xx.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]178 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]179 * Revision 1.24 1999/09/30 07:21:01 cgoos
180 * Removed SK_RLMT_SLOW_LOOKAHEAD option.
181 * Giving spanning tree packets also to OS now.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]182 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]183 * Revision 1.23 1999/09/29 07:36:50 cgoos
184 * Changed assignment for IsBc/IsMc.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]185 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]186 * Revision 1.22 1999/09/28 12:57:09 cgoos
187 * Added CheckQueue also to Single-Port-ISR.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]188 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]189 * Revision 1.21 1999/09/28 12:42:41 cgoos
190 * Changed parameter strings for RlmtMode.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]191 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]192 * Revision 1.20 1999/09/28 12:37:57 cgoos
193 * Added CheckQueue for fast delivery of RLMT frames.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]194 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]195 * Revision 1.19 1999/09/16 07:57:25 cgoos
196 * Copperfield changes.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]197 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]198 * Revision 1.18 1999/09/03 13:06:30 cgoos
199 * Fixed RlmtMode=CheckSeg bug: wrong DEV_KFREE_SKB in RLMT_SEND caused
200 * double allocated skb's.
201 * FrameStat in ReceiveIrq was accessed via wrong Rxd.
202 * Queue size for async. standby Tx queue was zero.
203 * FillRxLimit of 0 could cause problems with ReQueue, changed to 1.
204 * Removed debug output of checksum statistic.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]205 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]206 * Revision 1.17 1999/08/11 13:55:27 cgoos
207 * Transmit descriptor polling was not reenabled after SkGePortInit.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]208 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]209 * Revision 1.16 1999/07/27 15:17:29 cgoos
210 * Added some "\n" in output strings (removed while debuging...).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]211 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]212 * Revision 1.15 1999/07/23 12:09:30 cgoos
213 * Performance optimization, rx checksumming, large frame support.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]214 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]215 * Revision 1.14 1999/07/14 11:26:27 cgoos
216 * Removed Link LED settings (now in RLMT).
217 * Added status output at NET UP.
218 * Fixed SMP problems with Tx and SWITCH running in parallel.
219 * Fixed return code problem at RLMT_SEND event.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]220 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]221 * Revision 1.13 1999/04/07 10:11:42 cgoos
222 * Fixed Single Port problems.
223 * Fixed Multi-Adapter problems.
224 * Always display startup string.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]225 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]226 * Revision 1.12 1999/03/29 12:26:37 cgoos
227 * Reversed locking to fine granularity.
228 * Fixed skb double alloc problem (caused by incorrect xmit return code).
229 * Enhanced function descriptions.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]230 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]231 * Revision 1.11 1999/03/15 13:10:51 cgoos
232 * Changed device identifier in output string to ethX.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]233 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]234 * Revision 1.10 1999/03/15 12:12:34 cgoos
235 * Changed copyright notice.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]236 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]237 * Revision 1.9 1999/03/15 12:10:17 cgoos
238 * Changed locking to one driver lock.
239 * Added check of SK_AC-size (for consistency with library).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]240 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]241 * Revision 1.8 1999/03/08 11:44:02 cgoos
242 * Fixed missing dev->tbusy in SkGeXmit.
243 * Changed large frame (jumbo) buffer number.
244 * Added copying of short frames.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]245 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]246 * Revision 1.7 1999/03/04 13:26:57 cgoos
247 * Fixed spinlock calls for SMP.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]248 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]249 * Revision 1.6 1999/03/02 09:53:51 cgoos
250 * Added descriptor revertion for big endian machines.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]251 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]252 * Revision 1.5 1999/03/01 08:50:59 cgoos
253 * Fixed SkGeChangeMtu.
254 * Fixed pci config space accesses.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]255 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]256 * Revision 1.4 1999/02/18 15:48:44 cgoos
257 * Corrected some printk's.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]258 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]259 * Revision 1.3 1999/02/18 12:45:55 cgoos
260 * Changed SK_MAX_CARD_PARAM to default 16
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]261 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]262 * Revision 1.2 1999/02/18 10:55:32 cgoos
263 * Removed SkGeDrvTimeStamp function.
264 * Printing "ethX:" before adapter type at adapter init.
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]265 *
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]266 *
267 * 10-Feb-1999 cg Created, based on Linux' acenic.c, 3c59x.c and
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]268 * SysKonnects GEnesis Solaris driver
269 *
270 ******************************************************************************/
271
272/******************************************************************************
273 *
274 * Possible compiler options (#define xxx / -Dxxx):
275 *
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]276 * debugging can be enable by changing SK_DEBUG_CHKMOD and
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]277 * SK_DEBUG_CHKCAT in makefile (described there).
278 *
279 ******************************************************************************/
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]280
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]281/******************************************************************************
282 *
283 * Description:
284 *
285 * This is the main module of the Linux GE driver.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]286 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]287 * All source files except skge.c, skdrv1st.h, skdrv2nd.h and sktypes.h
288 * are part of SysKonnect's COMMON MODULES for the SK-98xx adapters.
289 * Those are used for drivers on multiple OS', so some thing may seem
290 * unnecessary complicated on Linux. Please do not try to 'clean up'
291 * them without VERY good reasons, because this will make it more
292 * difficult to keep the Linux driver in synchronisation with the
293 * other versions.
294 *
295 * Include file hierarchy:
296 *
297 * <linux/module.h>
298 *
299 * "h/skdrv1st.h"
300 * <linux/version.h>
301 * <linux/types.h>
302 * <linux/kernel.h>
303 * <linux/string.h>
304 * <linux/errno.h>
305 * <linux/ioport.h>
306 * <linux/slab.h>
307 * <linux/interrupt.h>
308 * <linux/pci.h>
309 * <asm/byteorder.h>
310 * <asm/bitops.h>
311 * <asm/io.h>
312 * <linux/netdevice.h>
313 * <linux/etherdevice.h>
314 * <linux/skbuff.h>
315 * those three depending on kernel version used:
316 * <linux/bios32.h>
317 * <linux/init.h>
318 * <asm/uaccess.h>
319 * <net/checksum.h>
320 *
321 * "h/skerror.h"
322 * "h/skdebug.h"
323 * "h/sktypes.h"
324 * "h/lm80.h"
325 * "h/xmac_ii.h"
326 *
327 * "h/skdrv2nd.h"
328 * "h/skqueue.h"
329 * "h/skgehwt.h"
330 * "h/sktimer.h"
331 * "h/ski2c.h"
332 * "h/skgepnmi.h"
333 * "h/skvpd.h"
334 * "h/skgehw.h"
335 * "h/skgeinit.h"
336 * "h/skaddr.h"
337 * "h/skgesirq.h"
338 * "h/skcsum.h"
339 * "h/skrlmt.h"
340 *
341 ******************************************************************************/
342
wdenk149dded2003-09-10 18:20:28 +0000[diff] [blame]343#include <config.h>
344
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]345#include "h/skversion.h"
346#if 0
347#include <linux/module.h>
348#include <linux/init.h>
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]349#include <linux/proc_fs.h>
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]350#endif
351#include "h/skdrv1st.h"
352#include "h/skdrv2nd.h"
353
354
355/* defines ******************************************************************/
356/* for debuging on x86 only */
357/* #define BREAKPOINT() asm(" int $3"); */
358
359/* use the scatter-gather functionality with sendfile() */
360#if 0
361#define SK_ZEROCOPY
362#endif
363
364/* use of a transmit complete interrupt */
365#define USE_TX_COMPLETE
366
367/* use interrupt moderation (for tx complete only) */
368#define USE_INT_MOD
369#define INTS_PER_SEC 1000
370
371/*
372 * threshold for copying small receive frames
373 * set to 0 to avoid copying, set to 9001 to copy all frames
374 */
375#define SK_COPY_THRESHOLD 50
376
377/* number of adapters that can be configured via command line params */
378#define SK_MAX_CARD_PARAM 16
379
380
381/*
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]382 * use those defines for a compile-in version of the driver instead
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]383 * of command line parameters
384 */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]385/* #define LINK_SPEED_A {"Auto", } */
386/* #define LINK_SPEED_B {"Auto", } */
387/* #define AUTO_NEG_A {"Sense", } */
388/* #define AUTO_NEG_B {"Sense", } */
389/* #define DUP_CAP_A {"Both", } */
390/* #define DUP_CAP_B {"Both", } */
391/* #define FLOW_CTRL_A {"SymOrRem", } */
392/* #define FLOW_CTRL_B {"SymOrRem", } */
393/* #define ROLE_A {"Auto", } */
394/* #define ROLE_B {"Auto", } */
395/* #define PREF_PORT {"A", } */
396/* #define RLMT_MODE {"CheckLinkState", } */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]397
398#define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
399#define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
400#define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
401
402/* function prototypes ******************************************************/
403static void FreeResources(struct SK_NET_DEVICE *dev);
404static int SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC);
405static SK_BOOL BoardAllocMem(SK_AC *pAC);
406static void BoardFreeMem(SK_AC *pAC);
407static void BoardInitMem(SK_AC *pAC);
408static void SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**,
409 int*, SK_BOOL);
410
411#if 0
412static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
413static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
414static int SkGeOpen(struct SK_NET_DEVICE *dev);
415static int SkGeClose(struct SK_NET_DEVICE *dev);
416static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
417static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p);
418static void SkGeSetRxMode(struct SK_NET_DEVICE *dev);
419static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev);
420static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd);
421#else
422void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
423void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
424int SkGeOpen(struct SK_NET_DEVICE *dev);
425int SkGeClose(struct SK_NET_DEVICE *dev);
426int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
427#endif
428static void GetConfiguration(SK_AC*);
429static void ProductStr(SK_AC*);
430static int XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*);
431static void FreeTxDescriptors(SK_AC*pAC, TX_PORT*);
432static void FillRxRing(SK_AC*, RX_PORT*);
433static SK_BOOL FillRxDescriptor(SK_AC*, RX_PORT*);
434#if 0
435static void ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
436#else
437void ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
438#endif
439static void ClearAndStartRx(SK_AC*, int);
440static void ClearTxIrq(SK_AC*, int, int);
441static void ClearRxRing(SK_AC*, RX_PORT*);
442static void ClearTxRing(SK_AC*, TX_PORT*);
443#if 0
444static void SetQueueSizes(SK_AC *pAC);
445
446static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int new_mtu);
447#endif
448static void PortReInitBmu(SK_AC*, int);
449#if 0
450static int SkGeIocMib(DEV_NET*, unsigned int, int);
451static int XmitFrameSG(SK_AC*, TX_PORT*, struct sk_buff*);
452#endif
453
454/*Extern */
455
456/* external Proc function */
457extern int proc_read(
458 char *buffer,
459 char **buffer_location,
460 off_t offset,
461 int buffer_length,
462 int *eof,
463 void *data);
464
465#ifdef DEBUG
466static void DumpMsg(struct sk_buff*, char*);
467static void DumpData(char*, int);
468static void DumpLong(char*, int);
469#endif
470void dump_frag( SK_U8 *data, int length);
471
472/* global variables *********************************************************/
473#if 0
474static const char *BootString = BOOT_STRING;
475#endif
476struct SK_NET_DEVICE *SkGeRootDev = NULL;
477static int probed __initdata = 0;
478
479/* local variables **********************************************************/
480static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
481static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
482
483
484/* local variables **********************************************************/
485const char SK_Root_Dir_entry[8];
486
487#if 0
488static struct proc_dir_entry *pSkRootDir;
489#endif
490
491
492static struct pci_device_id supported[] = {
493 {PCI_VENDOR_ID_3COM, 0x1700},
494 {PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE},
wdenk0b8fa032004-04-25 14:37:29 +0000[diff] [blame]495 {PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU},
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]496 {}
497};
498
499
500/*****************************************************************************
501 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]502 * skge_probe - find all SK-98xx adapters
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]503 *
504 * Description:
505 * This function scans the PCI bus for SK-98xx adapters. Resources for
506 * each adapter are allocated and the adapter is brought into Init 1
507 * state.
508 *
509 * Returns:
510 * 0, if everything is ok
511 * !=0, on error
512 */
513#if 0
514static int __init skge_probe (void)
515#else
516int skge_probe (struct eth_device ** ret_dev)
517#endif
518{
519#if 0
520 int proc_root_initialized = 0;
521#endif
522 int boards_found = 0;
523#if 0
524 int vendor_flag = SK_FALSE;
525#endif
526 SK_AC *pAC;
527 DEV_NET *pNet = NULL;
528#if 0
529 struct proc_dir_entry *pProcFile;
530 struct pci_dev *pdev = NULL;
531 unsigned long base_address;
532#else
533 u32 base_address;
534#endif
535 struct SK_NET_DEVICE *dev = NULL;
536#if 0
537 SK_BOOL DeviceFound = SK_FALSE;
538#endif
539 SK_BOOL BootStringCount = SK_FALSE;
540#if 1
541 pci_dev_t devno;
542#endif
543
544 if (probed)
545 return -ENODEV;
546 probed++;
547
548 if (!pci_present()) /* is PCI support present? */
549 return -ENODEV;
550
551#if 0
552 while((pdev = pci_find_class(PCI_CLASS_NETWORK_ETHERNET << 8, pdev)))
553#else
554 while((devno = pci_find_devices (supported, boards_found)) >= 0)
555#endif
556 {
557
558 dev = NULL;
559 pNet = NULL;
560
561
562#if 0
563 SK_PCI_ISCOMPLIANT(vendor_flag, pdev);
564 if (!vendor_flag)
565 continue;
566#endif
567
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]568/* if ((pdev->vendor != PCI_VENDOR_ID_SYSKONNECT) &&
569 ((pdev->device != PCI_DEVICE_ID_SYSKONNECT_GE) ||
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]570 (pdev->device != PCI_DEVICE_ID_SYSKONNECT_YU))){
571 continue;
572 }
573*/
574#if 0
575 /* Configure DMA attributes. */
576 if (pci_set_dma_mask(pdev, (u64) 0xffffffffffffffff) &&
577 pci_set_dma_mask(pdev, (u64) 0xffffffff))
578 continue;
579#endif
580
581
582#if 0
583 if ((dev = init_etherdev(dev, sizeof(DEV_NET))) == NULL) {
584 printk(KERN_ERR "Unable to allocate etherdev "
585 "structure!\n");
586 break;
587 }
588#else
589 dev = malloc (sizeof *dev);
590 memset(dev, 0, sizeof(*dev));
591 dev->priv = malloc(sizeof(DEV_NET));
592#endif
593
594 if (dev->priv == NULL) {
595 printk(KERN_ERR "Unable to allocate adapter "
596 "structure!\n");
597 break;
598 }
599
600 pNet = dev->priv;
601 pNet->pAC = kmalloc(sizeof(SK_AC), GFP_KERNEL);
602 if (pNet->pAC == NULL){
603 kfree(dev->priv);
604 printk(KERN_ERR "Unable to allocate adapter "
605 "structure!\n");
606 break;
607 }
608
609 /* Print message */
610 if (!BootStringCount) {
611 /* set display flag to TRUE so that */
612 /* we only display this string ONCE */
613 BootStringCount = SK_TRUE;
614#ifdef SK98_INFO
615 printk("%s\n", BootString);
616#endif
617 }
618
619 memset(pNet->pAC, 0, sizeof(SK_AC));
620 pAC = pNet->pAC;
621#if 0
622 pAC->PciDev = pdev;
623 pAC->PciDevId = pdev->device;
624 pAC->dev[0] = dev;
625 pAC->dev[1] = dev;
626#else
627 pAC->PciDev = devno;
628 ret_dev[0] = pAC->dev[0] = dev;
629 ret_dev[1] = pAC->dev[1] = dev;
630#endif
631 sprintf(pAC->Name, "SysKonnect SK-98xx");
632 pAC->CheckQueue = SK_FALSE;
633
634 pNet->Mtu = 1500;
635 pNet->Up = 0;
636#if 0
637 dev->irq = pdev->irq;
638
639 dev->open = &SkGeOpen;
640 dev->stop = &SkGeClose;
641 dev->hard_start_xmit = &SkGeXmit;
642 dev->get_stats = &SkGeStats;
643 dev->set_multicast_list = &SkGeSetRxMode;
644 dev->set_mac_address = &SkGeSetMacAddr;
645 dev->do_ioctl = &SkGeIoctl;
646 dev->change_mtu = &SkGeChangeMtu;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]647 dev->flags &= ~IFF_RUNNING;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]648#endif
649
650#ifdef SK_ZEROCOPY
651 if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
652 /* Use only if yukon hardware */
653 /* SK and ZEROCOPY - fly baby... */
654 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
655 }
656#endif
657
658#if 0
659 /*
660 * Dummy value.
661 */
662 dev->base_addr = 42;
663 pci_set_master(pdev);
664
665 pci_set_master(pdev);
666 base_address = pci_resource_start (pdev, 0);
667#else
668 pci_write_config_dword(devno,
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]669 PCI_COMMAND,
670 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]671 pci_read_config_dword (devno, PCI_BASE_ADDRESS_0,
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]672 &base_address);
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]673#endif
674
675#ifdef SK_BIG_ENDIAN
676 /*
677 * On big endian machines, we use the adapter's aibility of
678 * reading the descriptors as big endian.
679 */
680 {
681 SK_U32 our2;
682 SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
683 our2 |= PCI_REV_DESC;
684 SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
685 }
686#endif
687
688 /*
689 * Remap the regs into kernel space.
690 */
691#if 0
692 pAC->IoBase = (char*)ioremap(base_address, 0x4000);
693#else
694 pAC->IoBase = (char*)pci_mem_to_phys(devno, base_address);
695#endif
696
697 if (!pAC->IoBase){
698 printk(KERN_ERR "%s: Unable to map I/O register, "
699 "SK 98xx No. %i will be disabled.\n",
700 dev->name, boards_found);
701 kfree(dev);
702 break;
703 }
704
705 pAC->Index = boards_found;
706 if (SkGeBoardInit(dev, pAC)) {
707 FreeResources(dev);
708 kfree(dev);
709 continue;
710 }
711
712#if 0
713 memcpy((caddr_t) &dev->dev_addr,
714 (caddr_t) &pAC->Addr.Net[0].CurrentMacAddress, 6);
715#else
716 memcpy((caddr_t) &dev->enetaddr,
717 (caddr_t) &pAC->Addr.Net[0].CurrentMacAddress, 6);
718#endif
719
720#if 0
721 /* First adapter... Create proc and print message */
722 if (!DeviceFound) {
723 DeviceFound = SK_TRUE;
724 SK_MEMCPY(&SK_Root_Dir_entry, BootString,
725 sizeof(SK_Root_Dir_entry) - 1);
726
727 /*Create proc (directory)*/
728 if(!proc_root_initialized) {
729 pSkRootDir = create_proc_entry(SK_Root_Dir_entry,
730 S_IFDIR | S_IWUSR | S_IRUGO | S_IXUGO, proc_net);
731 proc_root_initialized = 1;
732 }
733
734 pSkRootDir->owner = THIS_MODULE;
735 }
736
737
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]738 /* Create proc file */
739 pProcFile = create_proc_entry(dev->name,
740 S_IFREG | S_IXUSR | S_IWGRP | S_IROTH,
741 pSkRootDir);
742
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]743
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]744 pProcFile->read_proc = proc_read;
745 pProcFile->write_proc = NULL;
746 pProcFile->nlink = 1;
747 pProcFile->size = sizeof(dev->name + 1);
748 pProcFile->data = (void *)pProcFile;
749#endif
750
751 pNet->PortNr = 0;
752 pNet->NetNr = 0;
753
754#ifdef SK_ZEROCOPY
755 if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
756 /* SG and ZEROCOPY - fly baby... */
757 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
758 }
759#endif
760
761 boards_found++;
762
763 /* More then one port found */
764 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
765#if 0
766 if ((dev = init_etherdev(NULL, sizeof(DEV_NET))) == 0) {
767 printk(KERN_ERR "Unable to allocate etherdev "
768 "structure!\n");
769 break;
770 }
771#else
772 dev = malloc (sizeof *dev);
773 memset(dev, 0, sizeof(*dev));
774 dev->priv = malloc(sizeof(DEV_NET));
775#endif
776
777 pAC->dev[1] = dev;
778 pNet = dev->priv;
779 pNet->PortNr = 1;
780 pNet->NetNr = 1;
781 pNet->pAC = pAC;
782 pNet->Mtu = 1500;
783 pNet->Up = 0;
784
785#if 0
786 dev->open = &SkGeOpen;
787 dev->stop = &SkGeClose;
788 dev->hard_start_xmit = &SkGeXmit;
789 dev->get_stats = &SkGeStats;
790 dev->set_multicast_list = &SkGeSetRxMode;
791 dev->set_mac_address = &SkGeSetMacAddr;
792 dev->do_ioctl = &SkGeIoctl;
793 dev->change_mtu = &SkGeChangeMtu;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]794 dev->flags &= ~IFF_RUNNING;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]795#endif
796
797#ifdef SK_ZEROCOPY
798 if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
799 /* SG and ZEROCOPY - fly baby... */
800 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
801 }
802#endif
803
804#if 0
805 pProcFile = create_proc_entry(dev->name,
806 S_IFREG | S_IXUSR | S_IWGRP | S_IROTH,
807 pSkRootDir);
808
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]809
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]810 pProcFile->read_proc = proc_read;
811 pProcFile->write_proc = NULL;
812 pProcFile->nlink = 1;
813 pProcFile->size = sizeof(dev->name + 1);
814 pProcFile->data = (void *)pProcFile;
815#endif
816
817#if 0
818 memcpy((caddr_t) &dev->dev_addr,
819 (caddr_t) &pAC->Addr.Net[1].CurrentMacAddress, 6);
820#else
821 memcpy((caddr_t) &dev->enetaddr,
822 (caddr_t) &pAC->Addr.Net[1].CurrentMacAddress, 6);
823#endif
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]824
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]825 printk("%s: %s\n", dev->name, pAC->DeviceStr);
826 printk(" PrefPort:B RlmtMode:Dual Check Link State\n");
827
828 }
829
830
831 /* Save the hardware revision */
832 pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) +
833 (pAC->GIni.GIPciHwRev & 0x0F);
834
835 /*
836 * This is bollocks, but we need to tell the net-init
837 * code that it shall go for the next device.
838 */
839#if 0
840#ifndef MODULE
841 dev->base_addr = 0;
842#endif
843#endif
844 }
845
846 /*
847 * If we're at this point we're going through skge_probe() for
848 * the first time. Return success (0) if we've initialized 1
849 * or more boards. Otherwise, return failure (-ENODEV).
850 */
851
852 return boards_found;
853} /* skge_probe */
854
855
856/*****************************************************************************
857 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]858 * FreeResources - release resources allocated for adapter
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]859 *
860 * Description:
861 * This function releases the IRQ, unmaps the IO and
862 * frees the desriptor ring.
863 *
864 * Returns: N/A
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]865 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]866 */
867static void FreeResources(struct SK_NET_DEVICE *dev)
868{
869SK_U32 AllocFlag;
870DEV_NET *pNet;
871SK_AC *pAC;
872
873 if (dev->priv) {
874 pNet = (DEV_NET*) dev->priv;
875 pAC = pNet->pAC;
876 AllocFlag = pAC->AllocFlag;
877#if 0
878 if (AllocFlag & SK_ALLOC_IRQ) {
879 free_irq(dev->irq, dev);
880 }
881 if (pAC->IoBase) {
882 iounmap(pAC->IoBase);
883 }
884#endif
885 if (pAC->pDescrMem) {
886 BoardFreeMem(pAC);
887 }
888 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]889
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]890} /* FreeResources */
891
892#if 0
893MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
894MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
895MODULE_LICENSE("GPL");
896MODULE_PARM(Speed_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
897MODULE_PARM(Speed_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
898MODULE_PARM(AutoNeg_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
899MODULE_PARM(AutoNeg_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
900MODULE_PARM(DupCap_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
901MODULE_PARM(DupCap_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
902MODULE_PARM(FlowCtrl_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
903MODULE_PARM(FlowCtrl_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
904MODULE_PARM(Role_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
905MODULE_PARM(Role_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
906MODULE_PARM(PrefPort, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
907MODULE_PARM(RlmtMode, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
908/* not used, just there because every driver should have them: */
909MODULE_PARM(options, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "i");
910MODULE_PARM(debug, "i");
911#endif
912
913
914#ifdef LINK_SPEED_A
915static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED_A;
916#else
917static char *Speed_A[SK_MAX_CARD_PARAM] = {"", };
918#endif
919
920#ifdef LINK_SPEED_B
921static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED_B;
922#else
923static char *Speed_B[SK_MAX_CARD_PARAM] = {"", };
924#endif
925
926#ifdef AUTO_NEG_A
927static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
928#else
929static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
930#endif
931
932#ifdef DUP_CAP_A
933static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
934#else
935static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
936#endif
937
938#ifdef FLOW_CTRL_A
939static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
940#else
941static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
942#endif
943
944#ifdef ROLE_A
945static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
946#else
947static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
948#endif
949
950#ifdef AUTO_NEG_B
951static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
952#else
953static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
954#endif
955
956#ifdef DUP_CAP_B
957static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
958#else
959static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
960#endif
961
962#ifdef FLOW_CTRL_B
963static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
964#else
965static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
966#endif
967
968#ifdef ROLE_B
969static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
970#else
971static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
972#endif
973
974#ifdef PREF_PORT
975static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
976#else
977static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
978#endif
979
980#ifdef RLMT_MODE
981static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
982#else
983static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
984#endif
985
986#if 0
987static int debug = 0; /* not used */
988static int options[SK_MAX_CARD_PARAM] = {0, }; /* not used */
989
990
991/*****************************************************************************
992 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]993 * skge_init_module - module initialization function
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]994 *
995 * Description:
996 * Very simple, only call skge_probe and return approriate result.
997 *
998 * Returns:
999 * 0, if everything is ok
1000 * !=0, on error
1001 */
1002static int __init skge_init_module(void)
1003{
1004 int cards;
1005 SkGeRootDev = NULL;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1006
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1007 /* just to avoid warnings ... */
1008 debug = 0;
1009 options[0] = 0;
1010
1011 cards = skge_probe();
1012 if (cards == 0) {
1013 printk("sk98lin: No adapter found.\n");
1014 }
1015 return cards ? 0 : -ENODEV;
1016} /* skge_init_module */
1017
1018
1019/*****************************************************************************
1020 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]1021 * skge_cleanup_module - module unload function
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1022 *
1023 * Description:
1024 * Disable adapter if it is still running, free resources,
1025 * free device struct.
1026 *
1027 * Returns: N/A
1028 */
1029static void __exit skge_cleanup_module(void)
1030{
1031DEV_NET *pNet;
1032SK_AC *pAC;
1033struct SK_NET_DEVICE *next;
1034unsigned long Flags;
1035SK_EVPARA EvPara;
1036
1037 while (SkGeRootDev) {
1038 pNet = (DEV_NET*) SkGeRootDev->priv;
1039 pAC = pNet->pAC;
1040 next = pAC->Next;
1041
1042 netif_stop_queue(SkGeRootDev);
1043 SkGeYellowLED(pAC, pAC->IoBase, 0);
1044
1045 if(pAC->BoardLevel == 2) {
1046 /* board is still alive */
1047 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1048 EvPara.Para32[0] = 0;
1049 EvPara.Para32[1] = -1;
1050 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1051 EvPara.Para32[0] = 1;
1052 EvPara.Para32[1] = -1;
1053 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1054 SkEventDispatcher(pAC, pAC->IoBase);
1055 /* disable interrupts */
1056 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1057 SkGeDeInit(pAC, pAC->IoBase);
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1058 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1059 pAC->BoardLevel = 0;
1060 /* We do NOT check here, if IRQ was pending, of course*/
1061 }
1062
1063 if(pAC->BoardLevel == 1) {
1064 /* board is still alive */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1065 SkGeDeInit(pAC, pAC->IoBase);
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1066 pAC->BoardLevel = 0;
1067 }
1068
1069 if ((pAC->GIni.GIMacsFound == 2) && pAC->RlmtNets == 2){
1070 unregister_netdev(pAC->dev[1]);
1071 kfree(pAC->dev[1]);
1072 }
1073
1074 FreeResources(SkGeRootDev);
1075
1076 SkGeRootDev->get_stats = NULL;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1077 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1078 * otherwise unregister_netdev calls get_stats with
1079 * invalid IO ... :-(
1080 */
1081 unregister_netdev(SkGeRootDev);
1082 kfree(SkGeRootDev);
1083 kfree(pAC);
1084 SkGeRootDev = next;
1085 }
1086
1087 /* clear proc-dir */
1088 remove_proc_entry(pSkRootDir->name, proc_net);
1089
1090} /* skge_cleanup_module */
1091
1092module_init(skge_init_module);
1093module_exit(skge_cleanup_module);
1094#endif
1095
1096
1097/*****************************************************************************
1098 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]1099 * SkGeBoardInit - do level 0 and 1 initialization
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1100 *
1101 * Description:
1102 * This function prepares the board hardware for running. The desriptor
1103 * ring is set up, the IRQ is allocated and the configuration settings
1104 * are examined.
1105 *
1106 * Returns:
1107 * 0, if everything is ok
1108 * !=0, on error
1109 */
1110static int __init SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC)
1111{
1112short i;
1113unsigned long Flags;
1114char *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
1115char *VerStr = VER_STRING;
1116#if 0
1117int Ret; /* return code of request_irq */
1118#endif
1119SK_BOOL DualNet;
1120
1121 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1122 ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
1123 for (i=0; i<SK_MAX_MACS; i++) {
1124 pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
1125 pAC->TxPort[i][0].PortIndex = i;
1126 pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
1127 pAC->RxPort[i].PortIndex = i;
1128 }
1129
1130 /* Initialize the mutexes */
1131 for (i=0; i<SK_MAX_MACS; i++) {
1132 spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
1133 spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
1134 }
1135 spin_lock_init(&pAC->SlowPathLock);
1136
1137 /* level 0 init common modules here */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1138
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1139 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1140 /* Does a RESET on board ...*/
1141 if (SkGeInit(pAC, pAC->IoBase, 0) != 0) {
1142 printk("HWInit (0) failed.\n");
1143 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1144 return(-EAGAIN);
1145 }
1146 SkI2cInit( pAC, pAC->IoBase, 0);
1147 SkEventInit(pAC, pAC->IoBase, 0);
1148 SkPnmiInit( pAC, pAC->IoBase, 0);
1149 SkAddrInit( pAC, pAC->IoBase, 0);
1150 SkRlmtInit( pAC, pAC->IoBase, 0);
1151 SkTimerInit(pAC, pAC->IoBase, 0);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1152
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1153 pAC->BoardLevel = 0;
1154 pAC->RxBufSize = ETH_BUF_SIZE;
1155
1156 SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
1157 SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
1158
1159 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1160
1161 /* level 1 init common modules here (HW init) */
1162 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1163 if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
1164 printk("HWInit (1) failed.\n");
1165 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1166 return(-EAGAIN);
1167 }
1168 SkI2cInit( pAC, pAC->IoBase, 1);
1169 SkEventInit(pAC, pAC->IoBase, 1);
1170 SkPnmiInit( pAC, pAC->IoBase, 1);
1171 SkAddrInit( pAC, pAC->IoBase, 1);
1172 SkRlmtInit( pAC, pAC->IoBase, 1);
1173 SkTimerInit(pAC, pAC->IoBase, 1);
1174
1175 GetConfiguration(pAC);
1176 if (pAC->RlmtNets == 2) {
1177 pAC->GIni.GIPortUsage = SK_MUL_LINK;
1178 }
1179
1180 pAC->BoardLevel = 1;
1181 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1182
1183#if 0
1184 if (pAC->GIni.GIMacsFound == 2) {
1185 Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
1186 } else if (pAC->GIni.GIMacsFound == 1) {
1187 Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ,
1188 pAC->Name, dev);
1189 } else {
1190 printk(KERN_WARNING "%s: Illegal number of ports: %d\n",
1191 dev->name, pAC->GIni.GIMacsFound);
1192 return -EAGAIN;
1193 }
1194
1195 if (Ret) {
1196 printk(KERN_WARNING "%s: Requested IRQ %d is busy.\n",
1197 dev->name, dev->irq);
1198 return -EAGAIN;
1199 }
1200#endif
1201 pAC->AllocFlag |= SK_ALLOC_IRQ;
1202
1203 /* Alloc memory for this board (Mem for RxD/TxD) : */
1204 if(!BoardAllocMem(pAC)) {
1205 printk("No memory for descriptor rings.\n");
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1206 return(-EAGAIN);
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1207 }
1208
1209 SkCsSetReceiveFlags(pAC,
1210 SKCS_PROTO_IP | SKCS_PROTO_TCP | SKCS_PROTO_UDP,
1211 &pAC->CsOfs1, &pAC->CsOfs2, 0);
1212 pAC->CsOfs = (pAC->CsOfs2 << 16) | pAC->CsOfs1;
1213
1214 BoardInitMem(pAC);
1215#if 0
1216 SetQueueSizes(pAC);
1217#else
1218 /* tschilling: New common function with minimum size check. */
1219 DualNet = SK_FALSE;
1220 if (pAC->RlmtNets == 2) {
1221 DualNet = SK_TRUE;
1222 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1223
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1224 if (SkGeInitAssignRamToQueues(
1225 pAC,
1226 pAC->ActivePort,
1227 DualNet)) {
1228 BoardFreeMem(pAC);
1229 printk("SkGeInitAssignRamToQueues failed.\n");
1230 return(-EAGAIN);
1231 }
1232#endif
1233
1234 /* Print adapter specific string from vpd */
1235 ProductStr(pAC);
1236#ifdef SK98_INFO
1237 printk("%s: %s\n", dev->name, pAC->DeviceStr);
1238
1239 /* Print configuration settings */
1240 printk(" PrefPort:%c RlmtMode:%s\n",
1241 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber,
1242 (pAC->RlmtMode==0) ? "Check Link State" :
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1243 ((pAC->RlmtMode==1) ? "Check Link State" :
1244 ((pAC->RlmtMode==3) ? "Check Local Port" :
1245 ((pAC->RlmtMode==7) ? "Check Segmentation" :
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1246 ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error")))));
1247#endif
1248
1249 SkGeYellowLED(pAC, pAC->IoBase, 1);
1250
1251 /*
1252 * Register the device here
1253 */
1254 pAC->Next = SkGeRootDev;
1255 SkGeRootDev = dev;
1256
1257 return (0);
1258} /* SkGeBoardInit */
1259
1260
1261/*****************************************************************************
1262 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]1263 * BoardAllocMem - allocate the memory for the descriptor rings
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1264 *
1265 * Description:
1266 * This function allocates the memory for all descriptor rings.
1267 * Each ring is aligned for the desriptor alignment and no ring
1268 * has a 4 GByte boundary in it (because the upper 32 bit must
1269 * be constant for all descriptiors in one rings).
1270 *
1271 * Returns:
1272 * SK_TRUE, if all memory could be allocated
1273 * SK_FALSE, if not
1274 */
1275static SK_BOOL BoardAllocMem(
1276SK_AC *pAC)
1277{
1278caddr_t pDescrMem; /* pointer to descriptor memory area */
1279size_t AllocLength; /* length of complete descriptor area */
1280int i; /* loop counter */
1281unsigned long BusAddr;
1282
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1283
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1284 /* rings plus one for alignment (do not cross 4 GB boundary) */
1285 /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
1286#if (BITS_PER_LONG == 32)
1287 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
1288#else
1289 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
1290 + RX_RING_SIZE + 8;
1291#endif
1292
1293 pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength,
1294 &pAC->pDescrMemDMA);
1295
1296 if (pDescrMem == NULL) {
1297 return (SK_FALSE);
1298 }
1299 pAC->pDescrMem = pDescrMem;
1300 BusAddr = (unsigned long) pAC->pDescrMemDMA;
1301
1302 /* Descriptors need 8 byte alignment, and this is ensured
1303 * by pci_alloc_consistent.
1304 */
1305 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1306 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1307 ("TX%d/A: pDescrMem: %lX, PhysDescrMem: %lX\n",
1308 i, (unsigned long) pDescrMem,
1309 BusAddr));
1310 pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
1311 pAC->TxPort[i][0].VTxDescrRing = BusAddr;
1312 pDescrMem += TX_RING_SIZE;
1313 BusAddr += TX_RING_SIZE;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1314
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1315 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1316 ("RX%d: pDescrMem: %lX, PhysDescrMem: %lX\n",
1317 i, (unsigned long) pDescrMem,
1318 (unsigned long)BusAddr));
1319 pAC->RxPort[i].pRxDescrRing = pDescrMem;
1320 pAC->RxPort[i].VRxDescrRing = BusAddr;
1321 pDescrMem += RX_RING_SIZE;
1322 BusAddr += RX_RING_SIZE;
1323 } /* for */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1324
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1325 return (SK_TRUE);
1326} /* BoardAllocMem */
1327
1328
1329/****************************************************************************
1330 *
1331 * BoardFreeMem - reverse of BoardAllocMem
1332 *
1333 * Description:
1334 * Free all memory allocated in BoardAllocMem: adapter context,
1335 * descriptor rings, locks.
1336 *
1337 * Returns: N/A
1338 */
1339static void BoardFreeMem(
1340SK_AC *pAC)
1341{
1342size_t AllocLength; /* length of complete descriptor area */
1343
1344 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1345 ("BoardFreeMem\n"));
1346#if (BITS_PER_LONG == 32)
1347 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
1348#else
1349 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
1350 + RX_RING_SIZE + 8;
1351#endif
1352
1353 pci_free_consistent(pAC->PciDev, AllocLength,
1354 pAC->pDescrMem, pAC->pDescrMemDMA);
1355 pAC->pDescrMem = NULL;
1356} /* BoardFreeMem */
1357
1358
1359/*****************************************************************************
1360 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]1361 * BoardInitMem - initiate the descriptor rings
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1362 *
1363 * Description:
1364 * This function sets the descriptor rings up in memory.
1365 * The adapter is initialized with the descriptor start addresses.
1366 *
1367 * Returns: N/A
1368 */
1369static void BoardInitMem(
1370SK_AC *pAC) /* pointer to adapter context */
1371{
1372int i; /* loop counter */
1373int RxDescrSize; /* the size of a rx descriptor rounded up to alignment*/
1374int TxDescrSize; /* the size of a tx descriptor rounded up to alignment*/
1375
1376 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1377 ("BoardInitMem\n"));
1378
1379 RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
1380 pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
1381 TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
1382 pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1383
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1384 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
Wolfgang Denk2d6d9f02009-09-11 09:36:31 +0200[diff] [blame]1385 TXD **txd_head, **txd_tail, **txd_prev;
1386
1387 txd_head = &pAC->TxPort[i][0].pTxdRingHead;
1388 txd_tail = &pAC->TxPort[i][0].pTxdRingTail;
1389 txd_prev = &pAC->TxPort[i][0].pTxdRingPrev;
1390
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1391 SetupRing(
1392 pAC,
1393 pAC->TxPort[i][0].pTxDescrRing,
1394 pAC->TxPort[i][0].VTxDescrRing,
Wolfgang Denk2d6d9f02009-09-11 09:36:31 +0200[diff] [blame]1395 (RXD**)txd_head,
1396 (RXD**)txd_tail,
1397 (RXD**)txd_prev,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1398 &pAC->TxPort[i][0].TxdRingFree,
1399 SK_TRUE);
1400 SetupRing(
1401 pAC,
1402 pAC->RxPort[i].pRxDescrRing,
1403 pAC->RxPort[i].VRxDescrRing,
1404 &pAC->RxPort[i].pRxdRingHead,
1405 &pAC->RxPort[i].pRxdRingTail,
1406 &pAC->RxPort[i].pRxdRingPrev,
1407 &pAC->RxPort[i].RxdRingFree,
1408 SK_FALSE);
1409 }
1410} /* BoardInitMem */
1411
1412
1413/*****************************************************************************
1414 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]1415 * SetupRing - create one descriptor ring
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1416 *
1417 * Description:
1418 * This function creates one descriptor ring in the given memory area.
1419 * The head, tail and number of free descriptors in the ring are set.
1420 *
1421 * Returns:
1422 * none
1423 */
1424static void SetupRing(
1425SK_AC *pAC,
1426void *pMemArea, /* a pointer to the memory area for the ring */
1427uintptr_t VMemArea, /* the virtual bus address of the memory area */
1428RXD **ppRingHead, /* address where the head should be written */
1429RXD **ppRingTail, /* address where the tail should be written */
1430RXD **ppRingPrev, /* address where the tail should be written */
1431int *pRingFree, /* address where the # of free descr. goes */
1432SK_BOOL IsTx) /* flag: is this a tx ring */
1433{
1434int i; /* loop counter */
1435int DescrSize; /* the size of a descriptor rounded up to alignment*/
1436int DescrNum; /* number of descriptors per ring */
1437RXD *pDescr; /* pointer to a descriptor (receive or transmit) */
1438RXD *pNextDescr; /* pointer to the next descriptor */
1439RXD *pPrevDescr; /* pointer to the previous descriptor */
1440uintptr_t VNextDescr; /* the virtual bus address of the next descriptor */
1441
1442 if (IsTx == SK_TRUE) {
1443 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
1444 DESCR_ALIGN;
1445 DescrNum = TX_RING_SIZE / DescrSize;
1446 } else {
1447 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
1448 DESCR_ALIGN;
1449 DescrNum = RX_RING_SIZE / DescrSize;
1450 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1451
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1452 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1453 ("Descriptor size: %d Descriptor Number: %d\n",
1454 DescrSize,DescrNum));
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1455
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1456 pDescr = (RXD*) pMemArea;
1457 pPrevDescr = NULL;
1458 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1459 VNextDescr = VMemArea + DescrSize;
1460 for(i=0; i<DescrNum; i++) {
1461 /* set the pointers right */
1462 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
1463 pDescr->pNextRxd = pNextDescr;
1464 pDescr->TcpSumStarts = pAC->CsOfs;
1465
1466 /* advance one step */
1467 pPrevDescr = pDescr;
1468 pDescr = pNextDescr;
1469 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1470 VNextDescr += DescrSize;
1471 }
1472 pPrevDescr->pNextRxd = (RXD*) pMemArea;
1473 pPrevDescr->VNextRxd = VMemArea;
1474 pDescr = (RXD*) pMemArea;
1475 *ppRingHead = (RXD*) pMemArea;
1476 *ppRingTail = *ppRingHead;
1477 *ppRingPrev = pPrevDescr;
1478 *pRingFree = DescrNum;
1479} /* SetupRing */
1480
1481
1482/*****************************************************************************
1483 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]1484 * PortReInitBmu - re-initiate the descriptor rings for one port
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1485 *
1486 * Description:
1487 * This function reinitializes the descriptor rings of one port
1488 * in memory. The port must be stopped before.
1489 * The HW is initialized with the descriptor start addresses.
1490 *
1491 * Returns:
1492 * none
1493 */
1494static void PortReInitBmu(
1495SK_AC *pAC, /* pointer to adapter context */
1496int PortIndex) /* index of the port for which to re-init */
1497{
1498 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1499 ("PortReInitBmu "));
1500
1501 /* set address of first descriptor of ring in BMU */
1502 SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1503 TX_Q_CUR_DESCR_LOW,
1504 (uint32_t)(((caddr_t)
1505 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1506 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1507 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
1508 0xFFFFFFFF));
1509 SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1510 TX_Q_DESCR_HIGH,
1511 (uint32_t)(((caddr_t)
1512 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1513 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1514 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
1515 SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CUR_DESCR_LOW,
1516 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1517 pAC->RxPort[PortIndex].pRxDescrRing +
1518 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
1519 SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_DESCR_HIGH,
1520 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1521 pAC->RxPort[PortIndex].pRxDescrRing +
1522 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
1523} /* PortReInitBmu */
1524
1525
1526/****************************************************************************
1527 *
1528 * SkGeIsr - handle adapter interrupts
1529 *
1530 * Description:
1531 * The interrupt routine is called when the network adapter
1532 * generates an interrupt. It may also be called if another device
1533 * shares this interrupt vector with the driver.
1534 *
1535 * Returns: N/A
1536 *
1537 */
1538#if 0
1539static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
1540#else
1541void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
1542#endif
1543{
1544struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1545DEV_NET *pNet;
1546SK_AC *pAC;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1547SK_U32 IntSrc; /* interrupts source register contents */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1548
1549 pNet = (DEV_NET*) dev->priv;
1550 pAC = pNet->pAC;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1551
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1552 /*
1553 * Check and process if its our interrupt
1554 */
1555 SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1556 if (IntSrc == 0) {
1557 return;
1558 }
1559
1560 while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1561#if 0 /* software irq currently not used */
1562 if (IntSrc & IRQ_SW) {
1563 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1564 SK_DBGCAT_DRV_INT_SRC,
1565 ("Software IRQ\n"));
1566 }
1567#endif
1568 if (IntSrc & IRQ_EOF_RX1) {
1569 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1570 SK_DBGCAT_DRV_INT_SRC,
1571 ("EOF RX1 IRQ\n"));
1572 ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1573 SK_PNMI_CNT_RX_INTR(pAC, 0);
1574 }
1575 if (IntSrc & IRQ_EOF_RX2) {
1576 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1577 SK_DBGCAT_DRV_INT_SRC,
1578 ("EOF RX2 IRQ\n"));
1579 ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1580 SK_PNMI_CNT_RX_INTR(pAC, 1);
1581 }
1582#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1583 if (IntSrc & IRQ_EOF_AS_TX1) {
1584 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1585 SK_DBGCAT_DRV_INT_SRC,
1586 ("EOF AS TX1 IRQ\n"));
1587 SK_PNMI_CNT_TX_INTR(pAC, 0);
1588 spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1589 FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1590 spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1591 }
1592 if (IntSrc & IRQ_EOF_AS_TX2) {
1593 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1594 SK_DBGCAT_DRV_INT_SRC,
1595 ("EOF AS TX2 IRQ\n"));
1596 SK_PNMI_CNT_TX_INTR(pAC, 1);
1597 spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1598 FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
1599 spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1600 }
1601#if 0 /* only if sync. queues used */
1602 if (IntSrc & IRQ_EOF_SY_TX1) {
1603 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1604 SK_DBGCAT_DRV_INT_SRC,
1605 ("EOF SY TX1 IRQ\n"));
1606 SK_PNMI_CNT_TX_INTR(pAC, 1);
1607 spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1608 FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1609 spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1610 ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1611 }
1612 if (IntSrc & IRQ_EOF_SY_TX2) {
1613 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1614 SK_DBGCAT_DRV_INT_SRC,
1615 ("EOF SY TX2 IRQ\n"));
1616 SK_PNMI_CNT_TX_INTR(pAC, 1);
1617 spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1618 FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
1619 spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1620 ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
1621 }
1622#endif
1623#endif
1624
1625 /* do all IO at once */
1626 if (IntSrc & IRQ_EOF_RX1)
1627 ClearAndStartRx(pAC, 0);
1628 if (IntSrc & IRQ_EOF_RX2)
1629 ClearAndStartRx(pAC, 1);
1630#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1631 if (IntSrc & IRQ_EOF_AS_TX1)
1632 ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1633 if (IntSrc & IRQ_EOF_AS_TX2)
1634 ClearTxIrq(pAC, 1, TX_PRIO_LOW);
1635#endif
1636 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1637 } /* while (IntSrc & IRQ_MASK != 0) */
1638
1639 if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1640 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1641 ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
1642 pAC->CheckQueue = SK_FALSE;
1643 spin_lock(&pAC->SlowPathLock);
1644 if (IntSrc & SPECIAL_IRQS)
1645 SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1646
1647 SkEventDispatcher(pAC, pAC->IoBase);
1648 spin_unlock(&pAC->SlowPathLock);
1649 }
1650 /*
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1651 * do it all again is case we cleared an interrupt that
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1652 * came in after handling the ring (OUTs may be delayed
1653 * in hardware buffers, but are through after IN)
1654 */
1655
1656 ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1657 ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1658
1659 if (pAC->CheckQueue) {
1660 pAC->CheckQueue = SK_FALSE;
1661 spin_lock(&pAC->SlowPathLock);
1662 SkEventDispatcher(pAC, pAC->IoBase);
1663 spin_unlock(&pAC->SlowPathLock);
1664 }
1665
1666
1667 /* IRQ is processed - Enable IRQs again*/
1668 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1669
1670 return;
1671} /* SkGeIsr */
1672
1673
1674/****************************************************************************
1675 *
1676 * SkGeIsrOnePort - handle adapter interrupts for single port adapter
1677 *
1678 * Description:
1679 * The interrupt routine is called when the network adapter
1680 * generates an interrupt. It may also be called if another device
1681 * shares this interrupt vector with the driver.
1682 * This is the same as above, but handles only one port.
1683 *
1684 * Returns: N/A
1685 *
1686 */
1687#if 0
1688static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1689#else
1690void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1691#endif
1692{
1693struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1694DEV_NET *pNet;
1695SK_AC *pAC;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1696SK_U32 IntSrc; /* interrupts source register contents */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1697
1698 pNet = (DEV_NET*) dev->priv;
1699 pAC = pNet->pAC;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1700
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1701 /*
1702 * Check and process if its our interrupt
1703 */
1704 SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1705 if (IntSrc == 0) {
1706 return;
1707 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1708
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1709 while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1710#if 0 /* software irq currently not used */
1711 if (IntSrc & IRQ_SW) {
1712 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1713 SK_DBGCAT_DRV_INT_SRC,
1714 ("Software IRQ\n"));
1715 }
1716#endif
1717 if (IntSrc & IRQ_EOF_RX1) {
1718 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1719 SK_DBGCAT_DRV_INT_SRC,
1720 ("EOF RX1 IRQ\n"));
1721 ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1722 SK_PNMI_CNT_RX_INTR(pAC, 0);
1723 }
1724#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1725 if (IntSrc & IRQ_EOF_AS_TX1) {
1726 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1727 SK_DBGCAT_DRV_INT_SRC,
1728 ("EOF AS TX1 IRQ\n"));
1729 SK_PNMI_CNT_TX_INTR(pAC, 0);
1730 spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1731 FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1732 spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1733 }
1734#if 0 /* only if sync. queues used */
1735 if (IntSrc & IRQ_EOF_SY_TX1) {
1736 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1737 SK_DBGCAT_DRV_INT_SRC,
1738 ("EOF SY TX1 IRQ\n"));
1739 SK_PNMI_CNT_TX_INTR(pAC, 0);
1740 spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1741 FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1742 spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1743 ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1744 }
1745#endif
1746#endif
1747
1748 /* do all IO at once */
1749 if (IntSrc & IRQ_EOF_RX1)
1750 ClearAndStartRx(pAC, 0);
1751#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1752 if (IntSrc & IRQ_EOF_AS_TX1)
1753 ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1754#endif
1755 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1756 } /* while (IntSrc & IRQ_MASK != 0) */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1757
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1758 if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1759 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1760 ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
1761 pAC->CheckQueue = SK_FALSE;
1762 spin_lock(&pAC->SlowPathLock);
1763 if (IntSrc & SPECIAL_IRQS)
1764 SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1765
1766 SkEventDispatcher(pAC, pAC->IoBase);
1767 spin_unlock(&pAC->SlowPathLock);
1768 }
1769 /*
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1770 * do it all again is case we cleared an interrupt that
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1771 * came in after handling the ring (OUTs may be delayed
1772 * in hardware buffers, but are through after IN)
1773 */
1774 ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1775
1776 /* IRQ is processed - Enable IRQs again*/
1777 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1778
1779 return;
1780} /* SkGeIsrOnePort */
1781
1782
1783/****************************************************************************
1784 *
1785 * SkGeOpen - handle start of initialized adapter
1786 *
1787 * Description:
1788 * This function starts the initialized adapter.
1789 * The board level variable is set and the adapter is
1790 * brought to full functionality.
1791 * The device flags are set for operation.
1792 * Do all necessary level 2 initialization, enable interrupts and
1793 * give start command to RLMT.
1794 *
1795 * Returns:
1796 * 0 on success
1797 * != 0 on error
1798 */
1799#if 0
1800static int SkGeOpen(
1801#else
1802int SkGeOpen(
1803#endif
1804struct SK_NET_DEVICE *dev)
1805{
1806 DEV_NET *pNet;
1807 SK_AC *pAC;
1808 unsigned long Flags; /* for spin lock */
1809 int i;
1810 SK_EVPARA EvPara; /* an event parameter union */
1811
1812 pNet = (DEV_NET*) dev->priv;
1813 pAC = pNet->pAC;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1814
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1815 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1816 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1817
1818 if (pAC->BoardLevel == 0) {
1819 /* level 1 init common modules here */
1820 if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
1821 printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
1822 return (-1);
1823 }
1824 SkI2cInit (pAC, pAC->IoBase, 1);
1825 SkEventInit (pAC, pAC->IoBase, 1);
1826 SkPnmiInit (pAC, pAC->IoBase, 1);
1827 SkAddrInit (pAC, pAC->IoBase, 1);
1828 SkRlmtInit (pAC, pAC->IoBase, 1);
1829 SkTimerInit (pAC, pAC->IoBase, 1);
1830 pAC->BoardLevel = 1;
1831 }
1832
1833 if (pAC->BoardLevel != 2) {
1834 /* tschilling: Level 2 init modules here, check return value. */
1835 if (SkGeInit(pAC, pAC->IoBase, 2) != 0) {
1836 printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
1837 return (-1);
1838 }
1839 SkI2cInit (pAC, pAC->IoBase, 2);
1840 SkEventInit (pAC, pAC->IoBase, 2);
1841 SkPnmiInit (pAC, pAC->IoBase, 2);
1842 SkAddrInit (pAC, pAC->IoBase, 2);
1843 SkRlmtInit (pAC, pAC->IoBase, 2);
1844 SkTimerInit (pAC, pAC->IoBase, 2);
1845 pAC->BoardLevel = 2;
1846 }
1847
1848 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1849 /* Enable transmit descriptor polling. */
1850 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1851 FillRxRing(pAC, &pAC->RxPort[i]);
1852 }
1853 SkGeYellowLED(pAC, pAC->IoBase, 1);
1854
1855#ifdef USE_INT_MOD
1856/* moderate only TX complete interrupts (these are not time critical) */
1857#define IRQ_MOD_MASK (IRQ_EOF_AS_TX1 | IRQ_EOF_AS_TX2)
1858 {
1859 unsigned long ModBase;
1860 ModBase = 53125000 / INTS_PER_SEC;
1861 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
1862 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
1863 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
1864 }
1865#endif
1866
1867 /* enable Interrupts */
1868 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1869 SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1870
1871 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1872
1873 if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
1874 EvPara.Para32[0] = pAC->RlmtNets;
1875 EvPara.Para32[1] = -1;
1876 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
1877 EvPara);
1878 EvPara.Para32[0] = pAC->RlmtMode;
1879 EvPara.Para32[1] = 0;
1880 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1881 EvPara);
1882 }
1883
1884 EvPara.Para32[0] = pNet->NetNr;
1885 EvPara.Para32[1] = -1;
1886 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1887 SkEventDispatcher(pAC, pAC->IoBase);
1888 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1889
1890 pAC->MaxPorts++;
1891 pNet->Up = 1;
1892
1893 MOD_INC_USE_COUNT;
1894
1895 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1896 ("SkGeOpen suceeded\n"));
1897
1898 return (0);
1899} /* SkGeOpen */
1900
1901
1902/****************************************************************************
1903 *
1904 * SkGeClose - Stop initialized adapter
1905 *
1906 * Description:
1907 * Close initialized adapter.
1908 *
1909 * Returns:
1910 * 0 - on success
1911 * error code - on error
1912 */
1913#if 0
1914static int SkGeClose(
1915#else
1916int SkGeClose(
1917#endif
1918struct SK_NET_DEVICE *dev)
1919{
1920 DEV_NET *pNet;
1921 SK_AC *pAC;
1922
1923 unsigned long Flags; /* for spin lock */
1924 int i;
1925 int PortIdx;
1926 SK_EVPARA EvPara;
1927
1928 netif_stop_queue(dev);
1929 pNet = (DEV_NET*) dev->priv;
1930 pAC = pNet->pAC;
1931
1932 if (pAC->RlmtNets == 1)
1933 PortIdx = pAC->ActivePort;
1934 else
1935 PortIdx = pNet->NetNr;
1936
1937 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1938 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1939
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1940 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1941 * Clear multicast table, promiscuous mode ....
1942 */
1943 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
1944 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
1945 SK_PROM_MODE_NONE);
1946
1947 if (pAC->MaxPorts == 1) {
1948 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1949 /* disable interrupts */
1950 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1951 EvPara.Para32[0] = pNet->NetNr;
1952 EvPara.Para32[1] = -1;
1953 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1954 SkEventDispatcher(pAC, pAC->IoBase);
1955 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1956 /* stop the hardware */
1957 SkGeDeInit(pAC, pAC->IoBase);
1958 pAC->BoardLevel = 0;
1959 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1960 } else {
1961
1962 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1963 EvPara.Para32[0] = pNet->NetNr;
1964 EvPara.Para32[1] = -1;
1965 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1966 SkEventDispatcher(pAC, pAC->IoBase);
1967 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1968
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1969 /* Stop port */
1970 spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
1971 [TX_PRIO_LOW].TxDesRingLock, Flags);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1972 SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1973 SK_STOP_ALL, SK_HARD_RST);
1974 spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
1975 [TX_PRIO_LOW].TxDesRingLock, Flags);
1976 }
1977
1978 if (pAC->RlmtNets == 1) {
1979 /* clear all descriptor rings */
1980 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1981 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
1982 ClearRxRing(pAC, &pAC->RxPort[i]);
1983 ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1984 }
1985 } else {
1986 /* clear port descriptor rings */
1987 ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
1988 ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
1989 ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
1990 }
1991
1992 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1993 ("SkGeClose: done "));
1994
1995 pAC->MaxPorts--;
1996 pNet->Up = 0;
1997 MOD_DEC_USE_COUNT;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1998
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1999 return (0);
2000} /* SkGeClose */
2001
2002
2003/*****************************************************************************
2004 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2005 * SkGeXmit - Linux frame transmit function
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2006 *
2007 * Description:
2008 * The system calls this function to send frames onto the wire.
2009 * It puts the frame in the tx descriptor ring. If the ring is
2010 * full then, the 'tbusy' flag is set.
2011 *
2012 * Returns:
2013 * 0, if everything is ok
2014 * !=0, on error
2015 * WARNING: returning 1 in 'tbusy' case caused system crashes (double
2016 * allocated skb's) !!!
2017 */
2018#if 0
2019static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
2020#else
2021int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
2022#endif
2023{
2024DEV_NET *pNet;
2025SK_AC *pAC;
2026int Rc; /* return code of XmitFrame */
2027
2028 pNet = (DEV_NET*) dev->priv;
2029 pAC = pNet->pAC;
2030
2031#if 0
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2032 if ((!skb_shinfo(skb)->nr_frags) ||
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2033#else
2034 if (1 ||
2035#endif
2036 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
2037 /* Don't activate scatter-gather and hardware checksum */
2038
2039 if (pAC->RlmtNets == 2)
2040 Rc = XmitFrame(
2041 pAC,
2042 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
2043 skb);
2044 else
2045 Rc = XmitFrame(
2046 pAC,
2047 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
2048 skb);
2049 } else {
2050#if 0
2051 /* scatter-gather and hardware TCP checksumming anabled*/
2052 if (pAC->RlmtNets == 2)
2053 Rc = XmitFrameSG(
2054 pAC,
2055 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
2056 skb);
2057 else
2058 Rc = XmitFrameSG(
2059 pAC,
2060 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
2061 skb);
2062#endif
2063 }
2064
2065 /* Transmitter out of resources? */
2066 if (Rc <= 0) {
2067 netif_stop_queue(dev);
2068 }
2069
2070 /* If not taken, give buffer ownership back to the
2071 * queueing layer.
2072 */
2073 if (Rc < 0)
2074 return (1);
2075
2076#if 0
2077 dev->trans_start = jiffies;
2078#endif
2079 return (0);
2080} /* SkGeXmit */
2081
2082
2083/*****************************************************************************
2084 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2085 * XmitFrame - fill one socket buffer into the transmit ring
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2086 *
2087 * Description:
2088 * This function puts a message into the transmit descriptor ring
2089 * if there is a descriptors left.
2090 * Linux skb's consist of only one continuous buffer.
2091 * The first step locks the ring. It is held locked
2092 * all time to avoid problems with SWITCH_../PORT_RESET.
2093 * Then the descriptoris allocated.
2094 * The second part is linking the buffer to the descriptor.
2095 * At the very last, the Control field of the descriptor
2096 * is made valid for the BMU and a start TX command is given
2097 * if necessary.
2098 *
2099 * Returns:
2100 * > 0 - on succes: the number of bytes in the message
2101 * = 0 - on resource shortage: this frame sent or dropped, now
2102 * the ring is full ( -> set tbusy)
2103 * < 0 - on failure: other problems ( -> return failure to upper layers)
2104 */
2105static int XmitFrame(
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2106SK_AC *pAC, /* pointer to adapter context */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2107TX_PORT *pTxPort, /* pointer to struct of port to send to */
2108struct sk_buff *pMessage) /* pointer to send-message */
2109{
2110TXD *pTxd; /* the rxd to fill */
2111unsigned long Flags;
2112SK_U64 PhysAddr;
2113int BytesSend;
2114
2115 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
2116 ("X"));
2117
2118 spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2119#ifndef USE_TX_COMPLETE
2120 FreeTxDescriptors(pAC, pTxPort);
2121#endif
2122 if (pTxPort->TxdRingFree == 0) {
2123 /* no enough free descriptors in ring at the moment */
2124 FreeTxDescriptors(pAC, pTxPort);
2125 if (pTxPort->TxdRingFree == 0) {
2126 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2127 SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
2128 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2129 SK_DBGCAT_DRV_TX_PROGRESS,
2130 ("XmitFrame failed\n"));
2131 /* this message can not be sent now */
2132 /* Because tbusy seems to be set, the message should not be freed here */
2133 /* It will be used by the scheduler of the ethernet handler */
2134 return (-1);
2135 }
2136 }
2137 /* advance head counter behind descriptor needed for this frame */
2138 pTxd = pTxPort->pTxdRingHead;
2139 pTxPort->pTxdRingHead = pTxd->pNextTxd;
2140 pTxPort->TxdRingFree--;
2141 /* the needed descriptor is reserved now */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2142
2143 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2144 * everything allocated ok, so add buffer to descriptor
2145 */
2146
2147#ifdef SK_DUMP_TX
2148 DumpMsg(pMessage, "XmitFrame");
2149#endif
2150
2151 /* set up descriptor and CONTROL dword */
2152#if 0
2153 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2154 virt_to_page(pMessage->data),
2155 ((unsigned long) pMessage->data &
2156 ~PAGE_MASK),
2157 pMessage->len,
2158 PCI_DMA_TODEVICE);
2159#else
2160 PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32) pMessage->data);
2161#endif
2162 pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
2163 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2164 pTxd->pMBuf = pMessage;
2165 pTxd->TBControl = TX_CTRL_OWN_BMU | TX_CTRL_STF |
2166 TX_CTRL_CHECK_DEFAULT | TX_CTRL_SOFTWARE |
2167#ifdef USE_TX_COMPLETE
2168 TX_CTRL_EOF | TX_CTRL_EOF_IRQ | pMessage->len;
2169#else
2170 TX_CTRL_EOF | pMessage->len;
2171#endif
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2172
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2173 if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
2174 /* previous descriptor already done, so give tx start cmd */
2175 /* StartTx(pAC, pTxPort->HwAddr); */
2176 SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
2177 }
2178 pTxPort->pTxdRingPrev = pTxd;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2179
2180
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2181 BytesSend = pMessage->len;
2182 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2183 /* after releasing the lock, the skb may be immidiately freed */
2184 if (pTxPort->TxdRingFree != 0)
2185 return (BytesSend);
2186 else
2187 return (0);
2188
2189} /* XmitFrame */
2190
2191/*****************************************************************************
2192 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2193 * XmitFrameSG - fill one socket buffer into the transmit ring
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2194 * (use SG and TCP/UDP hardware checksumming)
2195 *
2196 * Description:
2197 * This function puts a message into the transmit descriptor ring
2198 * if there is a descriptors left.
2199 *
2200 * Returns:
2201 * > 0 - on succes: the number of bytes in the message
2202 * = 0 - on resource shortage: this frame sent or dropped, now
2203 * the ring is full ( -> set tbusy)
2204 * < 0 - on failure: other problems ( -> return failure to upper layers)
2205 */
2206#if 0
2207static int XmitFrameSG(
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2208SK_AC *pAC, /* pointer to adapter context */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2209TX_PORT *pTxPort, /* pointer to struct of port to send to */
2210struct sk_buff *pMessage) /* pointer to send-message */
2211{
2212
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2213 int i;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2214 int BytesSend;
2215 int hlength;
2216 int protocol;
2217 skb_frag_t *sk_frag;
2218 TXD *pTxd;
2219 TXD *pTxdFst;
2220 TXD *pTxdLst;
2221 SK_U64 PhysAddr;
2222 unsigned long Flags;
2223
2224 spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2225#ifndef USE_TX_COMPLETE
2226 FreeTxDescriptors(pAC, pTxPort);
2227#endif
2228 if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
2229 FreeTxDescriptors(pAC, pTxPort);
2230 if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
2231 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2232 SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
2233 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2234 SK_DBGCAT_DRV_TX_PROGRESS,
2235 ("XmitFrameSG failed - Ring full\n"));
2236 /* this message can not be sent now */
2237 return(-1);
2238 }
2239 }
2240
2241
2242 pTxd = pTxPort->pTxdRingHead;
2243 pTxdFst = pTxd;
2244 pTxdLst = pTxd;
2245 BytesSend = 0;
2246 protocol = 0;
2247
2248 /* map first fragment (header) */
2249 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2250 virt_to_page(pMessage->data),
2251 ((unsigned long) pMessage->data & ~PAGE_MASK),
2252 skb_headlen(pMessage),
2253 PCI_DMA_TODEVICE);
2254
2255 pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
2256 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2257
2258 /* HW checksum? */
2259 if (pMessage->ip_summed == CHECKSUM_HW) {
2260 pTxd->TBControl = TX_CTRL_STF |
2261 TX_CTRL_ST_FWD |
2262 skb_headlen(pMessage);
2263
2264 /* We have to use the opcode for tcp here because the opcode for
2265 udp is not working in the hardware yet (revision 2.0)*/
2266 protocol = ((SK_U8)pMessage->data[23] & 0xf);
2267 if ((protocol == 17) && (pAC->GIni.GIChipRev != 0))
2268 pTxd->TBControl |= BMU_UDP_CHECK;
2269 else
2270 pTxd->TBControl |= BMU_TCP_CHECK ;
2271
2272 hlength = ((SK_U8)pMessage->data[14] & 0xf) * 4;
2273 pTxd->TcpSumOfs = 0; /* PH-Checksum already claculated */
2274 pTxd->TcpSumSt = 14+hlength+16;
2275 pTxd->TcpSumWr = 14+hlength;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2276
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2277 } else {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2278 pTxd->TBControl = TX_CTRL_CHECK_DEFAULT |
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2279 TX_CTRL_SOFTWARE |
2280 TX_CTRL_STF |
2281 skb_headlen(pMessage);
2282 }
2283
2284 pTxd = pTxd->pNextTxd;
2285 pTxPort->TxdRingFree--;
2286 BytesSend += skb_headlen(pMessage);
2287
2288
2289 /* Map SG fragments */
2290 for (i = 0; i < skb_shinfo(pMessage)->nr_frags; i++) {
2291 sk_frag = &skb_shinfo(pMessage)->frags[i];
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2292
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2293 /* we already have the proper value in entry */
2294 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2295 sk_frag->page,
2296 sk_frag->page_offset,
2297 sk_frag->size,
2298 PCI_DMA_TODEVICE);
2299
2300 pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
2301 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2302 pTxd->pMBuf = pMessage;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2303
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2304 /* HW checksum */
2305 if (pMessage->ip_summed == CHECKSUM_HW) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2306 pTxd->TBControl = TX_CTRL_OWN_BMU |
2307 TX_CTRL_SOFTWARE |
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2308 TX_CTRL_ST_FWD;
2309
2310 /* We have to use the opcode for tcp here because the opcode for
2311 udp is not working in the hardware yet (revision 2.0)*/
2312 if ((protocol == 17) && (pAC->GIni.GIChipRev != 0))
2313 pTxd->TBControl |= BMU_UDP_CHECK ;
2314 else
2315 pTxd->TBControl |= BMU_TCP_CHECK ;
2316
2317 } else {
2318 pTxd->TBControl = TX_CTRL_CHECK_DEFAULT |
2319 TX_CTRL_SOFTWARE |
2320 TX_CTRL_OWN_BMU;
2321 }
2322
2323 /* Last fragment */
2324 if( (i+1) == skb_shinfo(pMessage)->nr_frags ) {
2325#ifdef USE_TX_COMPLETE
2326 pTxd->TBControl |= TX_CTRL_EOF |
2327 TX_CTRL_EOF_IRQ |
2328 sk_frag->size;
2329#else
2330 pTxd->TBControl |= TX_CTRL_EOF |
2331 sk_frag->size;
2332#endif
2333 pTxdFst->TBControl |= TX_CTRL_OWN_BMU |
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2334 TX_CTRL_SOFTWARE;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2335
2336 } else {
2337 pTxd->TBControl |= sk_frag->size;
2338 }
2339 pTxdLst = pTxd;
2340 pTxd = pTxd->pNextTxd;
2341 pTxPort->TxdRingFree--;
2342 BytesSend += sk_frag->size;
2343 }
2344
2345 if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
2346 /* previous descriptor already done, so give tx start cmd */
2347 /* StartTx(pAC, pTxPort->HwAddr); */
2348 SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
2349 }
2350
2351 pTxPort->pTxdRingPrev = pTxdLst;
2352 pTxPort->pTxdRingHead = pTxd;
2353
2354 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2355
2356 if (pTxPort->TxdRingFree > 0)
2357 return (BytesSend);
2358 else
2359 return (0);
2360}
2361#endif
2362
2363
2364void dump_frag( SK_U8 *data, int length)
2365{
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2366 int i;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2367
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2368 printk("Length: %d\n", length);
2369 for( i=0; i < length; i++ ) {
2370 printk(" %02x", (SK_U8)*(data + i) );
2371 if( !((i+1) % 20) )
2372 printk("\n");
2373 }
2374 printk("\n\n");
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2375
2376}
2377
2378
2379/*****************************************************************************
2380 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2381 * FreeTxDescriptors - release descriptors from the descriptor ring
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2382 *
2383 * Description:
2384 * This function releases descriptors from a transmit ring if they
2385 * have been sent by the BMU.
2386 * If a descriptors is sent, it can be freed and the message can
2387 * be freed, too.
2388 * The SOFTWARE controllable bit is used to prevent running around a
2389 * completely free ring for ever. If this bit is no set in the
2390 * frame (by XmitFrame), this frame has never been sent or is
2391 * already freed.
2392 * The Tx descriptor ring lock must be held while calling this function !!!
2393 *
2394 * Returns:
2395 * none
2396 */
2397static void FreeTxDescriptors(
2398SK_AC *pAC, /* pointer to the adapter context */
2399TX_PORT *pTxPort) /* pointer to destination port structure */
2400{
2401TXD *pTxd; /* pointer to the checked descriptor */
2402TXD *pNewTail; /* pointer to 'end' of the ring */
2403SK_U32 Control; /* TBControl field of descriptor */
2404SK_U64 PhysAddr; /* address of DMA mapping */
2405
2406 pNewTail = pTxPort->pTxdRingTail;
2407 pTxd = pNewTail;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2408 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2409 * loop forever; exits if TX_CTRL_SOFTWARE bit not set in start frame
2410 * or TX_CTRL_OWN_BMU bit set in any frame
2411 */
2412 while (1) {
2413 Control = pTxd->TBControl;
2414 if ((Control & TX_CTRL_SOFTWARE) == 0) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2415 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2416 * software controllable bit is set in first
2417 * fragment when given to BMU. Not set means that
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2418 * this fragment was never sent or is already
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2419 * freed ( -> ring completely free now).
2420 */
2421 pTxPort->pTxdRingTail = pTxd;
2422 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
2423 return;
2424 }
2425 if (Control & TX_CTRL_OWN_BMU) {
2426 pTxPort->pTxdRingTail = pTxd;
2427 if (pTxPort->TxdRingFree > 0) {
2428 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
2429 }
2430 return;
2431 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2432
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2433 /* release the DMA mapping */
2434 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
2435 PhysAddr |= (SK_U64) pTxd->VDataLow;
2436 pci_unmap_page(pAC->PciDev, PhysAddr,
2437 pTxd->pMBuf->len,
2438 PCI_DMA_TODEVICE);
2439
2440 if (Control & TX_CTRL_EOF)
2441 DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
2442
2443 pTxPort->TxdRingFree++;
2444 pTxd->TBControl &= ~TX_CTRL_SOFTWARE;
2445 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
2446 } /* while(forever) */
2447} /* FreeTxDescriptors */
2448
2449/*****************************************************************************
2450 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2451 * FillRxRing - fill the receive ring with valid descriptors
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2452 *
2453 * Description:
2454 * This function fills the receive ring descriptors with data
2455 * segments and makes them valid for the BMU.
2456 * The active ring is filled completely, if possible.
2457 * The non-active ring is filled only partial to save memory.
2458 *
2459 * Description of rx ring structure:
2460 * head - points to the descriptor which will be used next by the BMU
2461 * tail - points to the next descriptor to give to the BMU
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2462 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2463 * Returns: N/A
2464 */
2465static void FillRxRing(
2466SK_AC *pAC, /* pointer to the adapter context */
2467RX_PORT *pRxPort) /* ptr to port struct for which the ring
2468 should be filled */
2469{
2470unsigned long Flags;
2471
2472 spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2473 while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
2474 if(!FillRxDescriptor(pAC, pRxPort))
2475 break;
2476 }
2477 spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2478} /* FillRxRing */
2479
2480
2481/*****************************************************************************
2482 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2483 * FillRxDescriptor - fill one buffer into the receive ring
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2484 *
2485 * Description:
2486 * The function allocates a new receive buffer and
2487 * puts it into the next descriptor.
2488 *
2489 * Returns:
2490 * SK_TRUE - a buffer was added to the ring
2491 * SK_FALSE - a buffer could not be added
2492 */
2493static SK_BOOL FillRxDescriptor(
2494SK_AC *pAC, /* pointer to the adapter context struct */
2495RX_PORT *pRxPort) /* ptr to port struct of ring to fill */
2496{
2497struct sk_buff *pMsgBlock; /* pointer to a new message block */
2498RXD *pRxd; /* the rxd to fill */
2499SK_U16 Length; /* data fragment length */
2500SK_U64 PhysAddr; /* physical address of a rx buffer */
2501
2502 pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
2503 if (pMsgBlock == NULL) {
2504 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2505 SK_DBGCAT_DRV_ENTRY,
2506 ("%s: Allocation of rx buffer failed !\n",
2507 pAC->dev[pRxPort->PortIndex]->name));
2508 SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
2509 return(SK_FALSE);
2510 }
2511 skb_reserve(pMsgBlock, 2); /* to align IP frames */
2512 /* skb allocated ok, so add buffer */
2513 pRxd = pRxPort->pRxdRingTail;
2514 pRxPort->pRxdRingTail = pRxd->pNextRxd;
2515 pRxPort->RxdRingFree--;
2516 Length = pAC->RxBufSize;
2517#if 0
2518 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2519 virt_to_page(pMsgBlock->data),
2520 ((unsigned long) pMsgBlock->data &
2521 ~PAGE_MASK),
2522 pAC->RxBufSize - 2,
2523 PCI_DMA_FROMDEVICE);
2524#else
2525 PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32)pMsgBlock->data);
2526#endif
2527 pRxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
2528 pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2529 pRxd->pMBuf = pMsgBlock;
2530 pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
2531 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
2532 return (SK_TRUE);
2533
2534} /* FillRxDescriptor */
2535
2536
2537/*****************************************************************************
2538 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2539 * ReQueueRxBuffer - fill one buffer back into the receive ring
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2540 *
2541 * Description:
2542 * Fill a given buffer back into the rx ring. The buffer
2543 * has been previously allocated and aligned, and its phys.
2544 * address calculated, so this is no more necessary.
2545 *
2546 * Returns: N/A
2547 */
2548static void ReQueueRxBuffer(
2549SK_AC *pAC, /* pointer to the adapter context struct */
2550RX_PORT *pRxPort, /* ptr to port struct of ring to fill */
2551struct sk_buff *pMsg, /* pointer to the buffer */
2552SK_U32 PhysHigh, /* phys address high dword */
2553SK_U32 PhysLow) /* phys address low dword */
2554{
2555RXD *pRxd; /* the rxd to fill */
2556SK_U16 Length; /* data fragment length */
2557
2558 pRxd = pRxPort->pRxdRingTail;
2559 pRxPort->pRxdRingTail = pRxd->pNextRxd;
2560 pRxPort->RxdRingFree--;
2561 Length = pAC->RxBufSize;
2562 pRxd->VDataLow = PhysLow;
2563 pRxd->VDataHigh = PhysHigh;
2564 pRxd->pMBuf = pMsg;
2565 pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
2566 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
2567 return;
2568} /* ReQueueRxBuffer */
2569
2570
2571/*****************************************************************************
2572 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2573 * ReceiveIrq - handle a receive IRQ
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2574 *
2575 * Description:
2576 * This function is called when a receive IRQ is set.
2577 * It walks the receive descriptor ring and sends up all
2578 * frames that are complete.
2579 *
2580 * Returns: N/A
2581 */
2582#if 0
2583static void ReceiveIrq(
2584#else
2585void ReceiveIrq(
2586#endif
2587 SK_AC *pAC, /* pointer to adapter context */
2588 RX_PORT *pRxPort, /* pointer to receive port struct */
2589 SK_BOOL SlowPathLock) /* indicates if SlowPathLock is needed */
2590{
2591RXD *pRxd; /* pointer to receive descriptors */
2592SK_U32 Control; /* control field of descriptor */
2593struct sk_buff *pMsg; /* pointer to message holding frame */
2594struct sk_buff *pNewMsg; /* pointer to a new message for copying frame */
2595int FrameLength; /* total length of received frame */
2596SK_MBUF *pRlmtMbuf; /* ptr to a buffer for giving a frame to rlmt */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2597SK_EVPARA EvPara; /* an event parameter union */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2598unsigned long Flags; /* for spin lock */
2599int PortIndex = pRxPort->PortIndex;
2600unsigned int Offset;
2601unsigned int NumBytes;
2602unsigned int ForRlmt;
2603SK_BOOL IsBc;
2604SK_BOOL IsMc;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2605SK_BOOL IsBadFrame; /* Bad frame */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2606
2607SK_U32 FrameStat;
2608unsigned short Csum1;
2609unsigned short Csum2;
2610unsigned short Type;
2611#if 0
2612int Result;
2613#endif
2614SK_U64 PhysAddr;
2615
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2616rx_start:
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2617 /* do forever; exit if RX_CTRL_OWN_BMU found */
2618 for ( pRxd = pRxPort->pRxdRingHead ;
2619 pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
2620 pRxd = pRxd->pNextRxd,
2621 pRxPort->pRxdRingHead = pRxd,
2622 pRxPort->RxdRingFree ++) {
2623
2624 /*
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2625 * For a better understanding of this loop
2626 * Go through every descriptor beginning at the head
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2627 * Please note: the ring might be completely received so the OWN bit
2628 * set is not a good crirteria to leave that loop.
2629 * Therefore the RingFree counter is used.
2630 * On entry of this loop pRxd is a pointer to the Rxd that needs
2631 * to be checked next.
2632 */
2633
2634 Control = pRxd->RBControl;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2635
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2636 /* check if this descriptor is ready */
2637 if ((Control & RX_CTRL_OWN_BMU) != 0) {
2638 /* this descriptor is not yet ready */
2639 /* This is the usual end of the loop */
2640 /* We don't need to start the ring again */
2641 FillRxRing(pAC, pRxPort);
2642 return;
2643 }
2644
2645 /* get length of frame and check it */
2646 FrameLength = Control & RX_CTRL_LEN_MASK;
2647 if (FrameLength > pAC->RxBufSize) {
2648 goto rx_failed;
2649 }
2650
2651 /* check for STF and EOF */
2652 if ((Control & (RX_CTRL_STF | RX_CTRL_EOF)) !=
2653 (RX_CTRL_STF | RX_CTRL_EOF)) {
2654 goto rx_failed;
2655 }
2656
2657 /* here we have a complete frame in the ring */
2658 pMsg = pRxd->pMBuf;
2659
2660 FrameStat = pRxd->FrameStat;
2661
2662 /* check for frame length mismatch */
2663#define XMR_FS_LEN_SHIFT 18
2664#define GMR_FS_LEN_SHIFT 16
2665 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2666 if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
2667 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2668 SK_DBGCAT_DRV_RX_PROGRESS,
2669 ("skge: Frame length mismatch (%u/%u).\n",
2670 FrameLength,
2671 (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2672 goto rx_failed;
2673 }
2674 }
2675 else {
2676 if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
2677 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2678 SK_DBGCAT_DRV_RX_PROGRESS,
2679 ("skge: Frame length mismatch (%u/%u).\n",
2680 FrameLength,
2681 (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2682 goto rx_failed;
2683 }
2684 }
2685
2686 /* Set Rx Status */
2687 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2688 IsBc = (FrameStat & XMR_FS_BC) != 0;
2689 IsMc = (FrameStat & XMR_FS_MC) != 0;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2690 IsBadFrame = (FrameStat &
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2691 (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
2692 } else {
2693 IsBc = (FrameStat & GMR_FS_BC) != 0;
2694 IsMc = (FrameStat & GMR_FS_MC) != 0;
2695 IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
2696 ((FrameStat & GMR_FS_RX_OK) == 0));
2697 }
2698
2699 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2700 ("Received frame of length %d on port %d\n",
2701 FrameLength, PortIndex));
2702 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2703 ("Number of free rx descriptors: %d\n",
2704 pRxPort->RxdRingFree));
2705/* DumpMsg(pMsg, "Rx"); */
2706
2707 if ((Control & RX_CTRL_STAT_VALID) != RX_CTRL_STAT_VALID ||
2708 (IsBadFrame)) {
2709#if 0
2710 (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
2711#endif
2712 /* there is a receive error in this frame */
2713 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2714 SK_DBGCAT_DRV_RX_PROGRESS,
2715 ("skge: Error in received frame, dropped!\n"
2716 "Control: %x\nRxStat: %x\n",
2717 Control, FrameStat));
2718
2719 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2720 PhysAddr |= (SK_U64) pRxd->VDataLow;
2721 pci_dma_sync_single(pAC->PciDev,
2722 (dma_addr_t) PhysAddr,
2723 FrameLength,
2724 PCI_DMA_FROMDEVICE);
2725 ReQueueRxBuffer(pAC, pRxPort, pMsg,
2726 pRxd->VDataHigh, pRxd->VDataLow);
2727
2728 continue;
2729 }
2730
2731 /*
2732 * if short frame then copy data to reduce memory waste
2733 */
2734 if ((FrameLength < SK_COPY_THRESHOLD) &&
2735 ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
2736 /*
2737 * Short frame detected and allocation successfull
2738 */
2739 /* use new skb and copy data */
2740 skb_reserve(pNewMsg, 2);
2741 skb_put(pNewMsg, FrameLength);
2742 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2743 PhysAddr |= (SK_U64) pRxd->VDataLow;
2744
2745 pci_dma_sync_single(pAC->PciDev,
2746 (dma_addr_t) PhysAddr,
2747 FrameLength,
2748 PCI_DMA_FROMDEVICE);
2749 eth_copy_and_sum(pNewMsg, pMsg->data,
2750 FrameLength, 0);
2751 ReQueueRxBuffer(pAC, pRxPort, pMsg,
2752 pRxd->VDataHigh, pRxd->VDataLow);
2753 pMsg = pNewMsg;
2754
2755 }
2756 else {
2757 /*
2758 * if large frame, or SKB allocation failed, pass
2759 * the SKB directly to the networking
2760 */
2761
2762 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2763 PhysAddr |= (SK_U64) pRxd->VDataLow;
2764
2765 /* release the DMA mapping */
2766 pci_unmap_single(pAC->PciDev,
2767 PhysAddr,
2768 pAC->RxBufSize - 2,
2769 PCI_DMA_FROMDEVICE);
2770
2771 /* set length in message */
2772 skb_put(pMsg, FrameLength);
2773 /* hardware checksum */
2774 Type = ntohs(*((short*)&pMsg->data[12]));
2775 if (Type == 0x800) {
2776 Csum1=le16_to_cpu(pRxd->TcpSums & 0xffff);
2777 Csum2=le16_to_cpu((pRxd->TcpSums >> 16) & 0xffff);
2778#if 0
2779 if ((((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) &&
2780 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) ||
2781 (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
2782 Result = SkCsGetReceiveInfo(pAC,
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2783 &pMsg->data[14],
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2784 Csum1, Csum2, pRxPort->PortIndex);
2785 if (Result ==
2786 SKCS_STATUS_IP_FRAGMENT ||
2787 Result ==
2788 SKCS_STATUS_IP_CSUM_OK ||
2789 Result ==
2790 SKCS_STATUS_TCP_CSUM_OK ||
2791 Result ==
2792 SKCS_STATUS_UDP_CSUM_OK) {
2793 pMsg->ip_summed =
2794 CHECKSUM_UNNECESSARY;
2795 } else {
2796 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2797 SK_DBGCAT_DRV_RX_PROGRESS,
2798 ("skge: CRC error. Frame dropped!\n"));
2799 goto rx_failed;
2800 }
2801 }/* checksumControl calculation valid */
2802#endif
2803 } /* IP frame */
2804 } /* frame > SK_COPY_TRESHOLD */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2805
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2806 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2807 ForRlmt = SK_RLMT_RX_PROTOCOL;
2808#if 0
2809 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
2810#endif
2811 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
2812 IsBc, &Offset, &NumBytes);
2813 if (NumBytes != 0) {
2814#if 0
2815 IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
2816#endif
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2817 SK_RLMT_LOOKAHEAD(pAC, PortIndex,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2818 &pMsg->data[Offset],
2819 IsBc, IsMc, &ForRlmt);
2820 }
2821 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
2822 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
2823 /* send up only frames from active port */
2824 if ((PortIndex == pAC->ActivePort) ||
2825 (pAC->RlmtNets == 2)) {
2826 /* frame for upper layer */
2827 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
2828#ifdef xDEBUG
2829 DumpMsg(pMsg, "Rx");
2830#endif
2831 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2832 FrameLength, pRxPort->PortIndex);
2833
2834#if 0
2835 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2836 pMsg->protocol = eth_type_trans(pMsg,
2837 pAC->dev[pRxPort->PortIndex]);
2838 netif_rx(pMsg);
2839 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2840#else
2841 NetReceive(pMsg->data, pMsg->len);
2842 dev_kfree_skb_any(pMsg);
2843#endif
2844 }
2845 else {
2846 /* drop frame */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2847 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2848 SK_DBGCAT_DRV_RX_PROGRESS,
2849 ("D"));
2850 DEV_KFREE_SKB(pMsg);
2851 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2852
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2853 } /* if not for rlmt */
2854 else {
2855 /* packet for rlmt */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2856 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2857 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2858 pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2859 pAC->IoBase, FrameLength);
2860 if (pRlmtMbuf != NULL) {
2861 pRlmtMbuf->pNext = NULL;
2862 pRlmtMbuf->Length = FrameLength;
2863 pRlmtMbuf->PortIdx = PortIndex;
2864 EvPara.pParaPtr = pRlmtMbuf;
2865 memcpy((char*)(pRlmtMbuf->pData),
2866 (char*)(pMsg->data),
2867 FrameLength);
2868
2869 /* SlowPathLock needed? */
2870 if (SlowPathLock == SK_TRUE) {
2871 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2872 SkEventQueue(pAC, SKGE_RLMT,
2873 SK_RLMT_PACKET_RECEIVED,
2874 EvPara);
2875 pAC->CheckQueue = SK_TRUE;
2876 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2877 } else {
2878 SkEventQueue(pAC, SKGE_RLMT,
2879 SK_RLMT_PACKET_RECEIVED,
2880 EvPara);
2881 pAC->CheckQueue = SK_TRUE;
2882 }
2883
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2884 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2885 SK_DBGCAT_DRV_RX_PROGRESS,
2886 ("Q"));
2887 }
2888#if 0
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2889 if ((pAC->dev[pRxPort->PortIndex]->flags &
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2890 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2891 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2892 SK_RLMT_RX_PROTOCOL) {
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2893 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2894 pMsg->protocol = eth_type_trans(pMsg,
2895 pAC->dev[pRxPort->PortIndex]);
2896 netif_rx(pMsg);
2897 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2898 }
2899#else
2900 if (0) {
2901 }
2902#endif
2903 else {
2904 DEV_KFREE_SKB(pMsg);
2905 }
2906
2907 } /* if packet for rlmt */
2908 } /* for ... scanning the RXD ring */
2909
2910 /* RXD ring is empty -> fill and restart */
2911 FillRxRing(pAC, pRxPort);
2912 /* do not start if called from Close */
2913 if (pAC->BoardLevel > 0) {
2914 ClearAndStartRx(pAC, PortIndex);
2915 }
2916 return;
2917
2918rx_failed:
2919 /* remove error frame */
2920 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2921 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2922
2923 /* release the DMA mapping */
2924
2925 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2926 PhysAddr |= (SK_U64) pRxd->VDataLow;
2927 pci_unmap_page(pAC->PciDev,
2928 PhysAddr,
2929 pAC->RxBufSize - 2,
2930 PCI_DMA_FROMDEVICE);
2931 DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2932 pRxd->pMBuf = NULL;
2933 pRxPort->RxdRingFree++;
2934 pRxPort->pRxdRingHead = pRxd->pNextRxd;
2935 goto rx_start;
2936
2937} /* ReceiveIrq */
2938
2939
2940/*****************************************************************************
2941 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2942 * ClearAndStartRx - give a start receive command to BMU, clear IRQ
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2943 *
2944 * Description:
2945 * This function sends a start command and a clear interrupt
2946 * command for one receive queue to the BMU.
2947 *
2948 * Returns: N/A
2949 * none
2950 */
2951static void ClearAndStartRx(
2952SK_AC *pAC, /* pointer to the adapter context */
2953int PortIndex) /* index of the receive port (XMAC) */
2954{
2955 SK_OUT8(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CTRL,
2956 RX_Q_CTRL_START | RX_Q_CTRL_CLR_I_EOF);
2957} /* ClearAndStartRx */
2958
2959
2960/*****************************************************************************
2961 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2962 * ClearTxIrq - give a clear transmit IRQ command to BMU
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2963 *
2964 * Description:
2965 * This function sends a clear tx IRQ command for one
2966 * transmit queue to the BMU.
2967 *
2968 * Returns: N/A
2969 */
2970static void ClearTxIrq(
2971SK_AC *pAC, /* pointer to the adapter context */
2972int PortIndex, /* index of the transmit port (XMAC) */
2973int Prio) /* priority or normal queue */
2974{
2975 SK_OUT8(pAC->IoBase, TxQueueAddr[PortIndex][Prio]+TX_Q_CTRL,
2976 TX_Q_CTRL_CLR_I_EOF);
2977} /* ClearTxIrq */
2978
2979
2980/*****************************************************************************
2981 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]2982 * ClearRxRing - remove all buffers from the receive ring
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2983 *
2984 * Description:
2985 * This function removes all receive buffers from the ring.
2986 * The receive BMU must be stopped before calling this function.
2987 *
2988 * Returns: N/A
2989 */
2990static void ClearRxRing(
2991SK_AC *pAC, /* pointer to adapter context */
2992RX_PORT *pRxPort) /* pointer to rx port struct */
2993{
2994RXD *pRxd; /* pointer to the current descriptor */
2995unsigned long Flags;
2996SK_U64 PhysAddr;
2997
2998 if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2999 return;
3000 }
3001 spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
3002 pRxd = pRxPort->pRxdRingHead;
3003 do {
3004 if (pRxd->pMBuf != NULL) {
3005
3006 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
3007 PhysAddr |= (SK_U64) pRxd->VDataLow;
3008 pci_unmap_page(pAC->PciDev,
3009 PhysAddr,
3010 pAC->RxBufSize - 2,
3011 PCI_DMA_FROMDEVICE);
3012 DEV_KFREE_SKB(pRxd->pMBuf);
3013 pRxd->pMBuf = NULL;
3014 }
3015 pRxd->RBControl &= RX_CTRL_OWN_BMU;
3016 pRxd = pRxd->pNextRxd;
3017 pRxPort->RxdRingFree++;
3018 } while (pRxd != pRxPort->pRxdRingTail);
3019 pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
3020 spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
3021} /* ClearRxRing */
3022
3023
3024/*****************************************************************************
3025 *
3026 * ClearTxRing - remove all buffers from the transmit ring
3027 *
3028 * Description:
3029 * This function removes all transmit buffers from the ring.
3030 * The transmit BMU must be stopped before calling this function
3031 * and transmitting at the upper level must be disabled.
3032 * The BMU own bit of all descriptors is cleared, the rest is
3033 * done by calling FreeTxDescriptors.
3034 *
3035 * Returns: N/A
3036 */
3037static void ClearTxRing(
3038SK_AC *pAC, /* pointer to adapter context */
3039TX_PORT *pTxPort) /* pointer to tx prt struct */
3040{
3041TXD *pTxd; /* pointer to the current descriptor */
3042int i;
3043unsigned long Flags;
3044
3045 spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
3046 pTxd = pTxPort->pTxdRingHead;
3047 for (i=0; i<pAC->TxDescrPerRing; i++) {
3048 pTxd->TBControl &= ~TX_CTRL_OWN_BMU;
3049 pTxd = pTxd->pNextTxd;
3050 }
3051 FreeTxDescriptors(pAC, pTxPort);
3052 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
3053} /* ClearTxRing */
3054
3055
3056#if 0
3057/*****************************************************************************
3058 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3059 * SetQueueSizes - configure the sizes of rx and tx queues
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3060 *
3061 * Description:
3062 * This function assigns the sizes for active and passive port
3063 * to the appropriate HWinit structure variables.
3064 * The passive port(s) get standard values, all remaining RAM
3065 * is given to the active port.
3066 * The queue sizes are in kbyte and must be multiple of 8.
3067 * The limits for the number of buffers filled into the rx rings
3068 * is also set in this routine.
3069 *
3070 * Returns:
3071 * none
3072 */
3073static void SetQueueSizes(
3074SK_AC *pAC) /* pointer to the adapter context */
3075{
3076int StandbyRam; /* adapter RAM used for a standby port */
3077int RemainingRam; /* adapter RAM available for the active port */
3078int RxRam; /* RAM used for the active port receive queue */
3079int i; /* loop counter */
3080
3081if (pAC->RlmtNets == 1) {
3082 StandbyRam = SK_RLMT_STANDBY_QRXSIZE + SK_RLMT_STANDBY_QXASIZE +
3083 SK_RLMT_STANDBY_QXSSIZE;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3084 RemainingRam = pAC->GIni.GIRamSize -
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3085 (pAC->GIni.GIMacsFound-1) * StandbyRam;
3086 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3087 pAC->GIni.GP[i].PRxQSize = SK_RLMT_STANDBY_QRXSIZE;
3088 pAC->GIni.GP[i].PXSQSize = SK_RLMT_STANDBY_QXSSIZE;
3089 pAC->GIni.GP[i].PXAQSize = SK_RLMT_STANDBY_QXASIZE;
3090 }
3091 RxRam = (RemainingRam * 8 / 10) & ~7;
3092 pAC->GIni.GP[pAC->ActivePort].PRxQSize = RxRam;
3093 pAC->GIni.GP[pAC->ActivePort].PXSQSize = 0;
3094 pAC->GIni.GP[pAC->ActivePort].PXAQSize =
3095 (RemainingRam - RxRam) & ~7;
3096 pAC->RxQueueSize = RxRam;
3097 pAC->TxSQueueSize = 0;
3098 pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
3099 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3100 ("queue sizes settings - rx:%d txA:%d txS:%d\n",
3101 pAC->RxQueueSize,pAC->TxAQueueSize, pAC->TxSQueueSize));
3102} else {
3103 RemainingRam = pAC->GIni.GIRamSize/pAC->GIni.GIMacsFound;
3104 RxRam = (RemainingRam * 8 / 10) & ~7;
3105 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3106 pAC->GIni.GP[i].PRxQSize = RxRam;
3107 pAC->GIni.GP[i].PXSQSize = 0;
3108 pAC->GIni.GP[i].PXAQSize = (RemainingRam - RxRam) & ~7;
3109 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3110
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3111 pAC->RxQueueSize = RxRam;
3112 pAC->TxSQueueSize = 0;
3113 pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
3114}
3115 for (i=0; i<SK_MAX_MACS; i++) {
3116 pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing;
3117 }
3118
3119 if (pAC->RlmtNets == 2) {
3120 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3121 pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
3122 }
3123 } else {
3124 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3125 pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
3126 }
3127 /*
3128 * Do not set the Limit to 0, because this could cause
3129 * wrap around with ReQueue'ed buffers (a buffer could
3130 * be requeued in the same position, made accessable to
3131 * the hardware, and the hardware could change its
3132 * contents!
3133 */
3134 pAC->RxPort[pAC->ActivePort].RxFillLimit = 1;
3135 }
3136
3137#ifdef DEBUG
3138 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3139 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
3140 ("i: %d, RxQSize: %d, PXSQsize: %d, PXAQSize: %d\n",
3141 i,
3142 pAC->GIni.GP[i].PRxQSize,
3143 pAC->GIni.GP[i].PXSQSize,
3144 pAC->GIni.GP[i].PXAQSize));
3145 }
3146#endif
3147} /* SetQueueSizes */
3148
3149
3150/*****************************************************************************
3151 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3152 * SkGeSetMacAddr - Set the hardware MAC address
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3153 *
3154 * Description:
3155 * This function sets the MAC address used by the adapter.
3156 *
3157 * Returns:
3158 * 0, if everything is ok
3159 * !=0, on error
3160 */
3161static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
3162{
3163
3164DEV_NET *pNet = (DEV_NET*) dev->priv;
3165SK_AC *pAC = pNet->pAC;
3166
3167struct sockaddr *addr = p;
3168unsigned long Flags;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3169
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3170 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3171 ("SkGeSetMacAddr starts now...\n"));
3172 if(netif_running(dev))
3173 return -EBUSY;
3174
3175 memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3176
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3177 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3178
3179 if (pAC->RlmtNets == 2)
3180 SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
3181 (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
3182 else
3183 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
3184 (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
3185
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3186
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3187 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3188 return 0;
3189} /* SkGeSetMacAddr */
3190#endif
3191
3192
3193/*****************************************************************************
3194 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3195 * SkGeSetRxMode - set receive mode
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3196 *
3197 * Description:
3198 * This function sets the receive mode of an adapter. The adapter
3199 * supports promiscuous mode, allmulticast mode and a number of
3200 * multicast addresses. If more multicast addresses the available
3201 * are selected, a hash function in the hardware is used.
3202 *
3203 * Returns:
3204 * 0, if everything is ok
3205 * !=0, on error
3206 */
3207#if 0
3208static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
3209{
3210
3211DEV_NET *pNet;
3212SK_AC *pAC;
3213
3214struct dev_mc_list *pMcList;
3215int i;
3216int PortIdx;
3217unsigned long Flags;
3218
3219 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3220 ("SkGeSetRxMode starts now... "));
3221
3222 pNet = (DEV_NET*) dev->priv;
3223 pAC = pNet->pAC;
3224 if (pAC->RlmtNets == 1)
3225 PortIdx = pAC->ActivePort;
3226 else
3227 PortIdx = pNet->NetNr;
3228
3229 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3230 if (dev->flags & IFF_PROMISC) {
3231 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3232 ("PROMISCUOUS mode\n"));
3233 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3234 SK_PROM_MODE_LLC);
3235 } else if (dev->flags & IFF_ALLMULTI) {
3236 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3237 ("ALLMULTI mode\n"));
3238 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3239 SK_PROM_MODE_ALL_MC);
3240 } else {
3241 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3242 SK_PROM_MODE_NONE);
3243 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
3244
3245 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3246 ("Number of MC entries: %d ", dev->mc_count));
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3247
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3248 pMcList = dev->mc_list;
3249 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
3250 SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
3251 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
3252 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
3253 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
3254 pMcList->dmi_addr[0],
3255 pMcList->dmi_addr[1],
3256 pMcList->dmi_addr[2],
3257 pMcList->dmi_addr[3],
3258 pMcList->dmi_addr[4],
3259 pMcList->dmi_addr[5]));
3260 }
3261 SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
3262 }
3263 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3264
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3265 return;
3266} /* SkGeSetRxMode */
3267
3268
3269/*****************************************************************************
3270 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3271 * SkGeChangeMtu - set the MTU to another value
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3272 *
3273 * Description:
3274 * This function sets is called whenever the MTU size is changed
3275 * (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
3276 * ethernet MTU size, long frame support is activated.
3277 *
3278 * Returns:
3279 * 0, if everything is ok
3280 * !=0, on error
3281 */
3282static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
3283{
3284DEV_NET *pNet;
3285DEV_NET *pOtherNet;
3286SK_AC *pAC;
3287unsigned long Flags;
3288int i;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3289SK_EVPARA EvPara;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3290
3291 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3292 ("SkGeChangeMtu starts now...\n"));
3293
3294 pNet = (DEV_NET*) dev->priv;
3295 pAC = pNet->pAC;
3296
3297 if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
3298 return -EINVAL;
3299 }
3300
3301 if(pAC->BoardLevel != 2) {
3302 return -EINVAL;
3303 }
3304
3305 pNet->Mtu = NewMtu;
3306 pOtherNet = (DEV_NET*)pAC->dev[1 - pNet->NetNr]->priv;
3307 if ((pOtherNet->Mtu > 1500) && (NewMtu <= 1500) && (pOtherNet->Up==1)) {
3308 return(0);
3309 }
3310
3311 EvPara.Para32[0] = pNet->NetNr;
3312 EvPara.Para32[1] = -1;
3313
3314 pAC->RxBufSize = NewMtu + 32;
3315 dev->mtu = NewMtu;
3316
3317 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3318 ("New MTU: %d\n", NewMtu));
3319
3320 /* prevent reconfiguration while changing the MTU */
3321
3322 /* disable interrupts */
3323 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
3324 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3325
3326 /* Found more than one port */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3327 if ((pAC->GIni.GIMacsFound == 2 ) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3328 (pAC->RlmtNets == 2)) {
3329 /* Stop both ports */
3330 EvPara.Para32[0] = 0;
3331 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3332 EvPara.Para32[0] = 1;
3333 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3334 } else {
3335 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3336 }
3337
3338 SkEventDispatcher(pAC, pAC->IoBase);
3339
3340 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3341 spin_lock_irqsave(
3342 &pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock, Flags);
3343 netif_stop_queue(pAC->dev[i]);
3344
3345 }
3346
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3347 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3348 * adjust number of rx buffers allocated
3349 */
3350 if (NewMtu > 1500) {
3351 /* use less rx buffers */
3352 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3353 /* Found more than one port */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3354 if ((pAC->GIni.GIMacsFound == 2 ) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3355 (pAC->RlmtNets == 2)) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3356 pAC->RxPort[i].RxFillLimit =
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3357 pAC->RxDescrPerRing - 100;
3358 } else {
3359 if (i == pAC->ActivePort)
3360 pAC->RxPort[i].RxFillLimit =
3361 pAC->RxDescrPerRing - 100;
3362 else
3363 pAC->RxPort[i].RxFillLimit =
3364 pAC->RxDescrPerRing - 10;
3365 }
3366 }
3367 }
3368 else {
3369 /* use normal amount of rx buffers */
3370 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3371 /* Found more than one port */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3372 if ((pAC->GIni.GIMacsFound == 2 ) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3373 (pAC->RlmtNets == 2)) {
3374 pAC->RxPort[i].RxFillLimit = 1;
3375 } else {
3376 if (i == pAC->ActivePort)
3377 pAC->RxPort[i].RxFillLimit = 1;
3378 else
3379 pAC->RxPort[i].RxFillLimit =
3380 pAC->RxDescrPerRing - 100;
3381 }
3382 }
3383 }
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3384
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3385 SkGeDeInit(pAC, pAC->IoBase);
3386
3387 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3388 * enable/disable hardware support for long frames
3389 */
3390 if (NewMtu > 1500) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3391/* pAC->JumboActivated = SK_TRUE; /#* is never set back !!! */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3392 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
3393 }
3394 else {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3395 if ((pAC->GIni.GIMacsFound == 2 ) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3396 (pAC->RlmtNets == 2)) {
3397 pAC->GIni.GIPortUsage = SK_MUL_LINK;
3398 } else {
3399 pAC->GIni.GIPortUsage = SK_RED_LINK;
3400 }
3401 }
3402
3403 SkGeInit( pAC, pAC->IoBase, 1);
3404 SkI2cInit( pAC, pAC->IoBase, 1);
3405 SkEventInit(pAC, pAC->IoBase, 1);
3406 SkPnmiInit( pAC, pAC->IoBase, 1);
3407 SkAddrInit( pAC, pAC->IoBase, 1);
3408 SkRlmtInit( pAC, pAC->IoBase, 1);
3409 SkTimerInit(pAC, pAC->IoBase, 1);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3410
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3411 /*
3412 * tschilling:
3413 * Speed and others are set back to default in level 1 init!
3414 */
3415 GetConfiguration(pAC);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3416
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3417 SkGeInit( pAC, pAC->IoBase, 2);
3418 SkI2cInit( pAC, pAC->IoBase, 2);
3419 SkEventInit(pAC, pAC->IoBase, 2);
3420 SkPnmiInit( pAC, pAC->IoBase, 2);
3421 SkAddrInit( pAC, pAC->IoBase, 2);
3422 SkRlmtInit( pAC, pAC->IoBase, 2);
3423 SkTimerInit(pAC, pAC->IoBase, 2);
3424
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3425 /*
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3426 * clear and reinit the rx rings here
3427 */
3428 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3429 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
3430 ClearRxRing(pAC, &pAC->RxPort[i]);
3431 FillRxRing(pAC, &pAC->RxPort[i]);
3432
3433 /* Enable transmit descriptor polling. */
3434 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
3435 FillRxRing(pAC, &pAC->RxPort[i]);
3436 };
3437
3438 SkGeYellowLED(pAC, pAC->IoBase, 1);
3439
3440#ifdef USE_INT_MOD
3441 {
3442 unsigned long ModBase;
3443 ModBase = 53125000 / INTS_PER_SEC;
3444 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
3445 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
3446 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
3447 }
3448#endif
3449
3450 netif_start_queue(pAC->dev[pNet->PortNr]);
3451 for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
3452 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
3453 }
3454
3455 /* enable Interrupts */
3456 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
3457 SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
3458
3459 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3460 SkEventDispatcher(pAC, pAC->IoBase);
3461
3462 /* Found more than one port */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3463 if ((pAC->GIni.GIMacsFound == 2 ) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3464 (pAC->RlmtNets == 2)) {
3465 /* Start both ports */
3466 EvPara.Para32[0] = pAC->RlmtNets;
3467 EvPara.Para32[1] = -1;
3468 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
3469 EvPara);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3470
3471
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3472 EvPara.Para32[1] = -1;
3473 EvPara.Para32[0] = pNet->PortNr;
3474 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3475
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3476 if (pOtherNet->Up) {
3477 EvPara.Para32[0] = pOtherNet->PortNr;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3478 SkEventQueue(pAC, SKGE_RLMT,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3479 SK_RLMT_START, EvPara);
3480 }
3481 } else {
3482 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3483 }
3484
3485 SkEventDispatcher(pAC, pAC->IoBase);
3486 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3487
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3488 return 0;
3489} /* SkGeChangeMtu */
3490
3491
3492/*****************************************************************************
3493 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3494 * SkGeStats - return ethernet device statistics
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3495 *
3496 * Description:
3497 * This function return statistic data about the ethernet device
3498 * to the operating system.
3499 *
3500 * Returns:
3501 * pointer to the statistic structure.
3502 */
3503static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
3504{
3505DEV_NET *pNet = (DEV_NET*) dev->priv;
3506SK_AC *pAC = pNet->pAC;
3507SK_PNMI_STRUCT_DATA *pPnmiStruct; /* structure for all Pnmi-Data */
3508SK_PNMI_STAT *pPnmiStat; /* pointer to virtual XMAC stat. data */
3509SK_PNMI_CONF *pPnmiConf; /* pointer to virtual link config. */
3510unsigned int Size; /* size of pnmi struct */
3511unsigned long Flags; /* for spin lock */
3512
3513 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3514 ("SkGeStats starts now...\n"));
3515 pPnmiStruct = &pAC->PnmiStruct;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3516 memset(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
3517 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3518 Size = SK_PNMI_STRUCT_SIZE;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3519 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3520 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3521 pPnmiStat = &pPnmiStruct->Stat[0];
3522 pPnmiConf = &pPnmiStruct->Conf[0];
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3523
3524 pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
3525 pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
3526 pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
3527 pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3528
3529 if (pNet->Mtu <= 1500) {
3530 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
3531 } else {
3532 pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
3533 pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3534 }
3535
3536
3537 if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
3538 pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
3539
3540 pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
3541 pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
3542 pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
3543 pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
3544 pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
3545
3546 /* detailed rx_errors: */
3547 pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
3548 pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
3549 pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
3550 pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
3551 pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
3552 pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
3553
3554 /* detailed tx_errors */
3555 pAC->stats.tx_aborted_errors = (SK_U32) 0;
3556 pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
3557 pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
3558 pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
3559 pAC->stats.tx_window_errors = (SK_U32) 0;
3560
3561 return(&pAC->stats);
3562} /* SkGeStats */
3563
3564
3565/*****************************************************************************
3566 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3567 * SkGeIoctl - IO-control function
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3568 *
3569 * Description:
3570 * This function is called if an ioctl is issued on the device.
3571 * There are three subfunction for reading, writing and test-writing
3572 * the private MIB data structure (usefull for SysKonnect-internal tools).
3573 *
3574 * Returns:
3575 * 0, if everything is ok
3576 * !=0, on error
3577 */
3578static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
3579{
3580DEV_NET *pNet;
3581SK_AC *pAC;
3582
3583SK_GE_IOCTL Ioctl;
3584unsigned int Err = 0;
3585int Size;
3586
3587 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3588 ("SkGeIoctl starts now...\n"));
3589
3590 pNet = (DEV_NET*) dev->priv;
3591 pAC = pNet->pAC;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3592
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3593 if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
3594 return -EFAULT;
3595 }
3596
3597 switch(cmd) {
3598 case SK_IOCTL_SETMIB:
3599 case SK_IOCTL_PRESETMIB:
3600 if (!capable(CAP_NET_ADMIN)) return -EPERM;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3601 case SK_IOCTL_GETMIB:
3602 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3603 Ioctl.Len<sizeof(pAC->PnmiStruct)?
3604 Ioctl.Len : sizeof(pAC->PnmiStruct))) {
3605 return -EFAULT;
3606 }
3607 Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
3608 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
3609 Ioctl.Len<Size? Ioctl.Len : Size)) {
3610 return -EFAULT;
3611 }
3612 Ioctl.Len = Size;
3613 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
3614 return -EFAULT;
3615 }
3616 break;
3617 default:
3618 Err = -EOPNOTSUPP;
3619 }
3620 return(Err);
3621} /* SkGeIoctl */
3622
3623
3624/*****************************************************************************
3625 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3626 * SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3627 *
3628 * Description:
3629 * This function reads/writes the MIB data using PNMI (Private Network
3630 * Management Interface).
3631 * The destination for the data must be provided with the
3632 * ioctl call and is given to the driver in the form of
3633 * a user space address.
3634 * Copying from the user-provided data area into kernel messages
3635 * and back is done by copy_from_user and copy_to_user calls in
3636 * SkGeIoctl.
3637 *
3638 * Returns:
3639 * returned size from PNMI call
3640 */
3641static int SkGeIocMib(
3642DEV_NET *pNet, /* pointer to the adapter context */
3643unsigned int Size, /* length of ioctl data */
3644int mode) /* flag for set/preset */
3645{
3646unsigned long Flags; /* for spin lock */
3647SK_AC *pAC;
3648
3649 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3650 ("SkGeIocMib starts now...\n"));
3651 pAC = pNet->pAC;
3652 /* access MIB */
3653 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3654 switch(mode) {
3655 case SK_IOCTL_GETMIB:
3656 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3657 pNet->NetNr);
3658 break;
3659 case SK_IOCTL_PRESETMIB:
3660 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3661 pNet->NetNr);
3662 break;
3663 case SK_IOCTL_SETMIB:
3664 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3665 pNet->NetNr);
3666 break;
3667 default:
3668 break;
3669 }
3670 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3671 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3672 ("MIB data access succeeded\n"));
3673 return (Size);
3674} /* SkGeIocMib */
3675#endif
3676
3677
3678/*****************************************************************************
3679 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3680 * GetConfiguration - read configuration information
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3681 *
3682 * Description:
3683 * This function reads per-adapter configuration information from
3684 * the options provided on the command line.
3685 *
3686 * Returns:
3687 * none
3688 */
3689static void GetConfiguration(
3690SK_AC *pAC) /* pointer to the adapter context structure */
3691{
3692SK_I32 Port; /* preferred port */
3693int LinkSpeed; /* Link speed */
3694int AutoNeg; /* auto negotiation off (0) or on (1) */
3695int DuplexCap; /* duplex capabilities (0=both, 1=full, 2=half */
3696int MSMode; /* master / slave mode selection */
3697SK_BOOL AutoSet;
3698SK_BOOL DupSet;
3699/*
3700 * The two parameters AutoNeg. and DuplexCap. map to one configuration
3701 * parameter. The mapping is described by this table:
3702 * DuplexCap -> | both | full | half |
3703 * AutoNeg | | | |
3704 * -----------------------------------------------------------------
3705 * Off | illegal | Full | Half |
3706 * -----------------------------------------------------------------
3707 * On | AutoBoth | AutoFull | AutoHalf |
3708 * -----------------------------------------------------------------
3709 * Sense | AutoSense | AutoSense | AutoSense |
3710 */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3711int Capabilities[3][3] =
3712 { { -1, SK_LMODE_FULL, SK_LMODE_HALF},
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3713 {SK_LMODE_AUTOBOTH, SK_LMODE_AUTOFULL, SK_LMODE_AUTOHALF},
3714 {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
3715#define DC_BOTH 0
3716#define DC_FULL 1
3717#define DC_HALF 2
3718#define AN_OFF 0
3719#define AN_ON 1
3720#define AN_SENS 2
3721
3722 /* settings for port A */
3723 /* settings link speed */
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3724 LinkSpeed = SK_LSPEED_AUTO; /* default: do auto select */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3725 if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3726 Speed_A[pAC->Index] != NULL) {
3727 if (strcmp(Speed_A[pAC->Index],"")==0) {
3728 LinkSpeed = SK_LSPEED_AUTO;
3729 }
3730 else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
3731 LinkSpeed = SK_LSPEED_AUTO;
3732 }
3733 else if (strcmp(Speed_A[pAC->Index],"10")==0) {
3734 LinkSpeed = SK_LSPEED_10MBPS;
3735 }
3736 else if (strcmp(Speed_A[pAC->Index],"100")==0) {
3737 LinkSpeed = SK_LSPEED_100MBPS;
3738 }
3739 else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
3740 LinkSpeed = SK_LSPEED_1000MBPS;
3741 }
3742 else printk("%s: Illegal value for Speed_A\n",
3743 pAC->dev[0]->name);
3744 }
3745
3746 /* Check speed parameter */
3747 /* Only copper type adapter and GE V2 cards */
3748 if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) ||
3749 (pAC->GIni.GICopperType != SK_TRUE)) &&
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3750 ((LinkSpeed != SK_LSPEED_AUTO) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3751 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3752 printk("%s: Illegal value for Speed_A. "
3753 "Not a copper card or GE V2 card\n Using "
3754 "speed 1000\n", pAC->dev[0]->name);
3755 LinkSpeed = SK_LSPEED_1000MBPS;
3756 }
3757 pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
3758
3759 /* Autonegotiation */
3760 AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
3761 AutoSet = SK_FALSE;
3762 if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3763 AutoNeg_A[pAC->Index] != NULL) {
3764 AutoSet = SK_TRUE;
3765 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
3766 AutoSet = SK_FALSE;
3767 }
3768 else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
3769 AutoNeg = AN_ON;
3770 }
3771 else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
3772 AutoNeg = AN_OFF;
3773 }
3774 else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
3775 AutoNeg = AN_SENS;
3776 }
3777 else printk("%s: Illegal value for AutoNeg_A\n",
3778 pAC->dev[0]->name);
3779 }
3780
3781 DuplexCap = DC_BOTH;
3782 DupSet = SK_FALSE;
3783 if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3784 DupCap_A[pAC->Index] != NULL) {
3785 DupSet = SK_TRUE;
3786 if (strcmp(DupCap_A[pAC->Index],"")==0) {
3787 DupSet = SK_FALSE;
3788 }
3789 else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
3790 DuplexCap = DC_BOTH;
3791 }
3792 else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
3793 DuplexCap = DC_FULL;
3794 }
3795 else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
3796 DuplexCap = DC_HALF;
3797 }
3798 else printk("%s: Illegal value for DupCap_A\n",
3799 pAC->dev[0]->name);
3800 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3801
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3802 /* check for illegal combinations */
3803 if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3804 printk("%s, Port A: DuplexCapabilities"
3805 " ignored using Sense mode\n", pAC->dev[0]->name);
3806 }
3807 if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3808 printk("%s, Port A: Illegal combination"
3809 " of values AutoNeg. and DuplexCap.\n Using "
3810 "Full Duplex\n", pAC->dev[0]->name);
3811
3812 DuplexCap = DC_FULL;
3813 }
3814 if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3815 DuplexCap = DC_FULL;
3816 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3817
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3818 if (!AutoSet && DupSet) {
3819 printk("%s, Port A: Duplex setting not"
3820 " possible in\n default AutoNegotiation mode"
3821 " (Sense).\n Using AutoNegotiation On\n",
3822 pAC->dev[0]->name);
3823 AutoNeg = AN_ON;
3824 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3825
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3826 /* set the desired mode */
3827 pAC->GIni.GP[0].PLinkModeConf =
3828 Capabilities[AutoNeg][DuplexCap];
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3829
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3830 pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3831 if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3832 FlowCtrl_A[pAC->Index] != NULL) {
3833 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
3834 }
3835 else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
3836 pAC->GIni.GP[0].PFlowCtrlMode =
3837 SK_FLOW_MODE_SYM_OR_REM;
3838 }
3839 else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
3840 pAC->GIni.GP[0].PFlowCtrlMode =
3841 SK_FLOW_MODE_SYMMETRIC;
3842 }
3843 else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
3844 pAC->GIni.GP[0].PFlowCtrlMode =
3845 SK_FLOW_MODE_LOC_SEND;
3846 }
3847 else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
3848 pAC->GIni.GP[0].PFlowCtrlMode =
3849 SK_FLOW_MODE_NONE;
3850 }
3851 else printk("Illegal value for FlowCtrl_A\n");
3852 }
3853 if (AutoNeg==AN_OFF && pAC->GIni.GP[0].PFlowCtrlMode!=
3854 SK_FLOW_MODE_NONE) {
3855 printk("%s, Port A: FlowControl"
3856 " impossible without AutoNegotiation,"
3857 " disabled\n", pAC->dev[0]->name);
3858 pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_NONE;
3859 }
3860
3861 MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
3862 if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3863 Role_A[pAC->Index] != NULL) {
3864 if (strcmp(Role_A[pAC->Index],"")==0) {
3865 }
3866 else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
3867 MSMode = SK_MS_MODE_AUTO;
3868 }
3869 else if (strcmp(Role_A[pAC->Index],"Master")==0) {
3870 MSMode = SK_MS_MODE_MASTER;
3871 }
3872 else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
3873 MSMode = SK_MS_MODE_SLAVE;
3874 }
3875 else printk("%s: Illegal value for Role_A\n",
3876 pAC->dev[0]->name);
3877 }
3878 pAC->GIni.GP[0].PMSMode = MSMode;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3879
3880
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3881 /* settings for port B */
3882 /* settings link speed */
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]3883 LinkSpeed = SK_LSPEED_AUTO; /* default: do auto select */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3884 if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3885 Speed_B[pAC->Index] != NULL) {
3886 if (strcmp(Speed_B[pAC->Index],"")==0) {
3887 LinkSpeed = SK_LSPEED_AUTO;
3888 }
3889 else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
3890 LinkSpeed = SK_LSPEED_AUTO;
3891 }
3892 else if (strcmp(Speed_B[pAC->Index],"10")==0) {
3893 LinkSpeed = SK_LSPEED_10MBPS;
3894 }
3895 else if (strcmp(Speed_B[pAC->Index],"100")==0) {
3896 LinkSpeed = SK_LSPEED_100MBPS;
3897 }
3898 else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
3899 LinkSpeed = SK_LSPEED_1000MBPS;
3900 }
3901 else printk("%s: Illegal value for Speed_B\n",
3902 pAC->dev[1]->name);
3903 }
3904
3905 /* Check speed parameter */
3906 /* Only copper type adapter and GE V2 cards */
3907 if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) ||
3908 (pAC->GIni.GICopperType != SK_TRUE)) &&
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3909 ((LinkSpeed != SK_LSPEED_AUTO) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3910 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3911 printk("%s: Illegal value for Speed_B. "
3912 "Not a copper card or GE V2 card\n Using "
3913 "speed 1000\n", pAC->dev[1]->name);
3914 LinkSpeed = SK_LSPEED_1000MBPS;
3915 }
3916 pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
3917
3918 /* Auto negotiation */
3919 AutoNeg = AN_SENS; /* default: do auto Sense */
3920 AutoSet = SK_FALSE;
3921 if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3922 AutoNeg_B[pAC->Index] != NULL) {
3923 AutoSet = SK_TRUE;
3924 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
3925 AutoSet = SK_FALSE;
3926 }
3927 else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
3928 AutoNeg = AN_ON;
3929 }
3930 else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
3931 AutoNeg = AN_OFF;
3932 }
3933 else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
3934 AutoNeg = AN_SENS;
3935 }
3936 else printk("Illegal value for AutoNeg_B\n");
3937 }
3938
3939 DuplexCap = DC_BOTH;
3940 DupSet = SK_FALSE;
3941 if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3942 DupCap_B[pAC->Index] != NULL) {
3943 DupSet = SK_TRUE;
3944 if (strcmp(DupCap_B[pAC->Index],"")==0) {
3945 DupSet = SK_FALSE;
3946 }
3947 else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
3948 DuplexCap = DC_BOTH;
3949 }
3950 else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
3951 DuplexCap = DC_FULL;
3952 }
3953 else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
3954 DuplexCap = DC_HALF;
3955 }
3956 else printk("Illegal value for DupCap_B\n");
3957 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3958
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3959 /* check for illegal combinations */
3960 if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3961 printk("%s, Port B: DuplexCapabilities"
3962 " ignored using Sense mode\n", pAC->dev[1]->name);
3963 }
3964 if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3965 printk("%s, Port B: Illegal combination"
3966 " of values AutoNeg. and DuplexCap.\n Using "
3967 "Full Duplex\n", pAC->dev[1]->name);
3968
3969 DuplexCap = DC_FULL;
3970 }
3971 if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3972 DuplexCap = DC_FULL;
3973 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3974
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3975 if (!AutoSet && DupSet) {
3976 printk("%s, Port B: Duplex setting not"
3977 " possible in\n default AutoNegotiation mode"
3978 " (Sense).\n Using AutoNegotiation On\n",
3979 pAC->dev[1]->name);
3980 AutoNeg = AN_ON;
3981 }
3982
3983 /* set the desired mode */
3984 pAC->GIni.GP[1].PLinkModeConf =
3985 Capabilities[AutoNeg][DuplexCap];
3986
3987 pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3988 if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3989 FlowCtrl_B[pAC->Index] != NULL) {
3990 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
3991 }
3992 else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
3993 pAC->GIni.GP[1].PFlowCtrlMode =
3994 SK_FLOW_MODE_SYM_OR_REM;
3995 }
3996 else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
3997 pAC->GIni.GP[1].PFlowCtrlMode =
3998 SK_FLOW_MODE_SYMMETRIC;
3999 }
4000 else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
4001 pAC->GIni.GP[1].PFlowCtrlMode =
4002 SK_FLOW_MODE_LOC_SEND;
4003 }
4004 else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
4005 pAC->GIni.GP[1].PFlowCtrlMode =
4006 SK_FLOW_MODE_NONE;
4007 }
4008 else printk("Illegal value for FlowCtrl_B\n");
4009 }
4010 if (AutoNeg==AN_OFF && pAC->GIni.GP[1].PFlowCtrlMode!=
4011 SK_FLOW_MODE_NONE) {
4012 printk("%s, Port B: FlowControl"
4013 " impossible without AutoNegotiation,"
4014 " disabled\n", pAC->dev[1]->name);
4015 pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_NONE;
4016 }
4017
4018 MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
4019 if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4020 Role_B[pAC->Index] != NULL) {
4021 if (strcmp(Role_B[pAC->Index],"")==0) {
4022 }
4023 else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
4024 MSMode = SK_MS_MODE_AUTO;
4025 }
4026 else if (strcmp(Role_B[pAC->Index],"Master")==0) {
4027 MSMode = SK_MS_MODE_MASTER;
4028 }
4029 else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
4030 MSMode = SK_MS_MODE_SLAVE;
4031 }
4032 else printk("%s: Illegal value for Role_B\n",
4033 pAC->dev[1]->name);
4034 }
4035 pAC->GIni.GP[1].PMSMode = MSMode;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4036
4037
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4038 /* settings for both ports */
4039 pAC->ActivePort = 0;
4040 if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4041 PrefPort[pAC->Index] != NULL) {
4042 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
4043 pAC->ActivePort = 0;
4044 pAC->Rlmt.Net[0].Preference = -1; /* auto */
4045 pAC->Rlmt.Net[0].PrefPort = 0;
4046 }
4047 else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
4048 /*
4049 * do not set ActivePort here, thus a port
4050 * switch is issued after net up.
4051 */
4052 Port = 0;
4053 pAC->Rlmt.Net[0].Preference = Port;
4054 pAC->Rlmt.Net[0].PrefPort = Port;
4055 }
4056 else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
4057 /*
4058 * do not set ActivePort here, thus a port
4059 * switch is issued after net up.
4060 */
4061 Port = 1;
4062 pAC->Rlmt.Net[0].Preference = Port;
4063 pAC->Rlmt.Net[0].PrefPort = Port;
4064 }
4065 else printk("%s: Illegal value for PrefPort\n",
4066 pAC->dev[0]->name);
4067 }
4068
4069 pAC->RlmtNets = 1;
4070
4071 if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4072 RlmtMode[pAC->Index] != NULL) {
4073 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
4074 pAC->RlmtMode = 0;
4075 }
4076 else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
4077 pAC->RlmtMode = SK_RLMT_CHECK_LINK;
4078 }
4079 else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
4080 pAC->RlmtMode = SK_RLMT_CHECK_LINK |
4081 SK_RLMT_CHECK_LOC_LINK;
4082 }
4083 else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
4084 pAC->RlmtMode = SK_RLMT_CHECK_LINK |
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4085 SK_RLMT_CHECK_LOC_LINK |
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4086 SK_RLMT_CHECK_SEG;
4087 }
4088 else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
4089 (pAC->GIni.GIMacsFound == 2)) {
4090 pAC->RlmtMode = SK_RLMT_CHECK_LINK;
4091 pAC->RlmtNets = 2;
4092 }
4093 else {
4094 printk("%s: Illegal value for"
4095 " RlmtMode, using default\n", pAC->dev[0]->name);
4096 pAC->RlmtMode = 0;
4097 }
4098 }
4099 else {
4100 pAC->RlmtMode = 0;
4101 }
4102} /* GetConfiguration */
4103
4104
4105/*****************************************************************************
4106 *
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]4107 * ProductStr - return a adapter identification string from vpd
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4108 *
4109 * Description:
4110 * This function reads the product name string from the vpd area
4111 * and puts it the field pAC->DeviceString.
4112 *
4113 * Returns: N/A
4114 */
4115static void ProductStr(
4116SK_AC *pAC /* pointer to adapter context */
4117)
4118{
4119int StrLen = 80; /* length of the string, defined in SK_AC */
4120char Keyword[] = VPD_NAME; /* vpd productname identifier */
4121int ReturnCode; /* return code from vpd_read */
4122unsigned long Flags;
4123
4124 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
4125 ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, pAC->DeviceStr,
4126 &StrLen);
4127 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
4128 if (ReturnCode != 0) {
4129 /* there was an error reading the vpd data */
4130 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
4131 ("Error reading VPD data: %d\n", ReturnCode));
4132 pAC->DeviceStr[0] = '\0';
4133 }
4134} /* ProductStr */
4135
4136
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4137/****************************************************************************/
4138/* functions for common modules *********************************************/
4139/****************************************************************************/
4140
4141
4142/*****************************************************************************
4143 *
4144 * SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
4145 *
4146 * Description:
4147 * This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
4148 * is embedded into a socket buff data area.
4149 *
4150 * Context:
4151 * runtime
4152 *
4153 * Returns:
4154 * NULL or pointer to Mbuf.
4155 */
4156SK_MBUF *SkDrvAllocRlmtMbuf(
4157SK_AC *pAC, /* pointer to adapter context */
4158SK_IOC IoC, /* the IO-context */
4159unsigned BufferSize) /* size of the requested buffer */
4160{
4161SK_MBUF *pRlmtMbuf; /* pointer to a new rlmt-mbuf structure */
4162struct sk_buff *pMsgBlock; /* pointer to a new message block */
4163
4164 pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
4165 if (pMsgBlock == NULL) {
4166 return (NULL);
4167 }
4168 pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
4169 skb_reserve(pMsgBlock, sizeof(SK_MBUF));
4170 pRlmtMbuf->pNext = NULL;
4171 pRlmtMbuf->pOs = pMsgBlock;
4172 pRlmtMbuf->pData = pMsgBlock->data; /* Data buffer. */
4173 pRlmtMbuf->Size = BufferSize; /* Data buffer size. */
4174 pRlmtMbuf->Length = 0; /* Length of packet (<= Size). */
4175 return (pRlmtMbuf);
4176
4177} /* SkDrvAllocRlmtMbuf */
4178
4179
4180/*****************************************************************************
4181 *
4182 * SkDrvFreeRlmtMbuf - free an RLMT mbuf
4183 *
4184 * Description:
4185 * This routine frees one or more RLMT mbuf(s).
4186 *
4187 * Context:
4188 * runtime
4189 *
4190 * Returns:
4191 * Nothing
4192 */
4193void SkDrvFreeRlmtMbuf(
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4194SK_AC *pAC, /* pointer to adapter context */
4195SK_IOC IoC, /* the IO-context */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4196SK_MBUF *pMbuf) /* size of the requested buffer */
4197{
4198SK_MBUF *pFreeMbuf;
4199SK_MBUF *pNextMbuf;
4200
4201 pFreeMbuf = pMbuf;
4202 do {
4203 pNextMbuf = pFreeMbuf->pNext;
4204 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
4205 pFreeMbuf = pNextMbuf;
4206 } while ( pFreeMbuf != NULL );
4207} /* SkDrvFreeRlmtMbuf */
4208
4209
4210/*****************************************************************************
4211 *
4212 * SkOsGetTime - provide a time value
4213 *
4214 * Description:
4215 * This routine provides a time value. The unit is 1/HZ (defined by Linux).
4216 * It is not used for absolute time, but only for time differences.
4217 *
4218 *
4219 * Returns:
4220 * Time value
4221 */
4222SK_U64 SkOsGetTime(SK_AC *pAC)
4223{
4224#if 0
4225 return jiffies;
4226#else
4227 return get_timer(0);
4228#endif
4229} /* SkOsGetTime */
4230
4231
4232/*****************************************************************************
4233 *
4234 * SkPciReadCfgDWord - read a 32 bit value from pci config space
4235 *
4236 * Description:
4237 * This routine reads a 32 bit value from the pci configuration
4238 * space.
4239 *
4240 * Returns:
4241 * 0 - indicate everything worked ok.
4242 * != 0 - error indication
4243 */
4244int SkPciReadCfgDWord(
4245SK_AC *pAC, /* Adapter Control structure pointer */
4246int PciAddr, /* PCI register address */
4247SK_U32 *pVal) /* pointer to store the read value */
4248{
4249 pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
4250 return(0);
4251} /* SkPciReadCfgDWord */
4252
4253
4254/*****************************************************************************
4255 *
4256 * SkPciReadCfgWord - read a 16 bit value from pci config space
4257 *
4258 * Description:
4259 * This routine reads a 16 bit value from the pci configuration
4260 * space.
4261 *
4262 * Returns:
4263 * 0 - indicate everything worked ok.
4264 * != 0 - error indication
4265 */
4266int SkPciReadCfgWord(
4267SK_AC *pAC, /* Adapter Control structure pointer */
4268int PciAddr, /* PCI register address */
4269SK_U16 *pVal) /* pointer to store the read value */
4270{
4271 pci_read_config_word(pAC->PciDev, PciAddr, pVal);
4272 return(0);
4273} /* SkPciReadCfgWord */
4274
4275
4276/*****************************************************************************
4277 *
4278 * SkPciReadCfgByte - read a 8 bit value from pci config space
4279 *
4280 * Description:
4281 * This routine reads a 8 bit value from the pci configuration
4282 * space.
4283 *
4284 * Returns:
4285 * 0 - indicate everything worked ok.
4286 * != 0 - error indication
4287 */
4288int SkPciReadCfgByte(
4289SK_AC *pAC, /* Adapter Control structure pointer */
4290int PciAddr, /* PCI register address */
4291SK_U8 *pVal) /* pointer to store the read value */
4292{
4293 pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
4294 return(0);
4295} /* SkPciReadCfgByte */
4296
4297
4298/*****************************************************************************
4299 *
4300 * SkPciWriteCfgDWord - write a 32 bit value to pci config space
4301 *
4302 * Description:
4303 * This routine writes a 32 bit value to the pci configuration
4304 * space.
4305 *
4306 * Returns:
4307 * 0 - indicate everything worked ok.
4308 * != 0 - error indication
4309 */
4310int SkPciWriteCfgDWord(
4311SK_AC *pAC, /* Adapter Control structure pointer */
4312int PciAddr, /* PCI register address */
4313SK_U32 Val) /* pointer to store the read value */
4314{
4315 pci_write_config_dword(pAC->PciDev, PciAddr, Val);
4316 return(0);
4317} /* SkPciWriteCfgDWord */
4318
4319
4320/*****************************************************************************
4321 *
4322 * SkPciWriteCfgWord - write a 16 bit value to pci config space
4323 *
4324 * Description:
4325 * This routine writes a 16 bit value to the pci configuration
4326 * space. The flag PciConfigUp indicates whether the config space
4327 * is accesible or must be set up first.
4328 *
4329 * Returns:
4330 * 0 - indicate everything worked ok.
4331 * != 0 - error indication
4332 */
4333int SkPciWriteCfgWord(
4334SK_AC *pAC, /* Adapter Control structure pointer */
4335int PciAddr, /* PCI register address */
4336SK_U16 Val) /* pointer to store the read value */
4337{
4338 pci_write_config_word(pAC->PciDev, PciAddr, Val);
4339 return(0);
4340} /* SkPciWriteCfgWord */
4341
4342
4343/*****************************************************************************
4344 *
4345 * SkPciWriteCfgWord - write a 8 bit value to pci config space
4346 *
4347 * Description:
4348 * This routine writes a 8 bit value to the pci configuration
4349 * space. The flag PciConfigUp indicates whether the config space
4350 * is accesible or must be set up first.
4351 *
4352 * Returns:
4353 * 0 - indicate everything worked ok.
4354 * != 0 - error indication
4355 */
4356int SkPciWriteCfgByte(
4357SK_AC *pAC, /* Adapter Control structure pointer */
4358int PciAddr, /* PCI register address */
4359SK_U8 Val) /* pointer to store the read value */
4360{
4361 pci_write_config_byte(pAC->PciDev, PciAddr, Val);
4362 return(0);
4363} /* SkPciWriteCfgByte */
4364
4365
4366/*****************************************************************************
4367 *
4368 * SkDrvEvent - handle driver events
4369 *
4370 * Description:
4371 * This function handles events from all modules directed to the driver
4372 *
4373 * Context:
4374 * Is called under protection of slow path lock.
4375 *
4376 * Returns:
4377 * 0 if everything ok
4378 * < 0 on error
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4379 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4380 */
4381int SkDrvEvent(
4382SK_AC *pAC, /* pointer to adapter context */
4383SK_IOC IoC, /* io-context */
4384SK_U32 Event, /* event-id */
4385SK_EVPARA Param) /* event-parameter */
4386{
4387SK_MBUF *pRlmtMbuf; /* pointer to a rlmt-mbuf structure */
4388struct sk_buff *pMsg; /* pointer to a message block */
4389int FromPort; /* the port from which we switch away */
4390int ToPort; /* the port we switch to */
4391SK_EVPARA NewPara; /* parameter for further events */
4392#if 0
4393int Stat;
4394#endif
4395unsigned long Flags;
4396SK_BOOL DualNet;
4397
4398 switch (Event) {
4399 case SK_DRV_ADAP_FAIL:
4400 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4401 ("ADAPTER FAIL EVENT\n"));
4402 printk("%s: Adapter failed.\n", pAC->dev[0]->name);
4403 /* disable interrupts */
4404 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4405 /* cgoos */
4406 break;
4407 case SK_DRV_PORT_FAIL:
4408 FromPort = Param.Para32[0];
4409 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4410 ("PORT FAIL EVENT, Port: %d\n", FromPort));
4411 if (FromPort == 0) {
4412 printk("%s: Port A failed.\n", pAC->dev[0]->name);
4413 } else {
4414 printk("%s: Port B failed.\n", pAC->dev[1]->name);
4415 }
4416 /* cgoos */
4417 break;
4418 case SK_DRV_PORT_RESET: /* SK_U32 PortIdx */
4419 /* action list 4 */
4420 FromPort = Param.Para32[0];
4421 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4422 ("PORT RESET EVENT, Port: %d ", FromPort));
4423 NewPara.Para64 = FromPort;
4424 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4425 spin_lock_irqsave(
4426 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4427 Flags);
4428 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
4429#if 0
4430 pAC->dev[Param.Para32[0]]->flags &= ~IFF_RUNNING;
4431#endif
4432 spin_unlock_irqrestore(
4433 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4434 Flags);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4435
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4436 /* clear rx ring from received frames */
4437 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4438
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4439 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4440 spin_lock_irqsave(
4441 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4442 Flags);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4443
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4444 /* tschilling: Handling of return value inserted. */
4445 if (SkGeInitPort(pAC, IoC, FromPort)) {
4446 if (FromPort == 0) {
4447 printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
4448 } else {
4449 printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
4450 }
4451 }
4452 SkAddrMcUpdate(pAC,IoC, FromPort);
4453 PortReInitBmu(pAC, FromPort);
4454 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4455 ClearAndStartRx(pAC, FromPort);
4456 spin_unlock_irqrestore(
4457 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4458 Flags);
4459 break;
4460 case SK_DRV_NET_UP: /* SK_U32 PortIdx */
4461 /* action list 5 */
4462 FromPort = Param.Para32[0];
4463 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4464 ("NET UP EVENT, Port: %d ", Param.Para32[0]));
4465#ifdef SK98_INFO
4466 printk("%s: network connection up using"
4467 " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
4468
4469 /* tschilling: Values changed according to LinkSpeedUsed. */
4470 Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
4471 if (Stat == SK_LSPEED_STAT_10MBPS) {
4472 printk(" speed: 10\n");
4473 } else if (Stat == SK_LSPEED_STAT_100MBPS) {
4474 printk(" speed: 100\n");
4475 } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
4476 printk(" speed: 1000\n");
4477 } else {
4478 printk(" speed: unknown\n");
4479 }
4480
4481 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
4482 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4483 Stat == SK_LMODE_STAT_AUTOFULL) {
4484 printk(" autonegotiation: yes\n");
4485 }
4486 else {
4487 printk(" autonegotiation: no\n");
4488 }
4489 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4490 Stat == SK_LMODE_STAT_HALF) {
4491 printk(" duplex mode: half\n");
4492 }
4493 else {
4494 printk(" duplex mode: full\n");
4495 }
4496 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
4497 if (Stat == SK_FLOW_STAT_REM_SEND ) {
4498 printk(" flowctrl: remote send\n");
4499 }
4500 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
4501 printk(" flowctrl: local send\n");
4502 }
4503 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
4504 printk(" flowctrl: symmetric\n");
4505 }
4506 else {
4507 printk(" flowctrl: none\n");
4508 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4509
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4510 /* tschilling: Check against CopperType now. */
4511 if ((pAC->GIni.GICopperType == SK_TRUE) &&
4512 (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
4513 SK_LSPEED_STAT_1000MBPS)) {
4514 Stat = pAC->GIni.GP[FromPort].PMSStatus;
4515 if (Stat == SK_MS_STAT_MASTER ) {
4516 printk(" role: master\n");
4517 }
4518 else if (Stat == SK_MS_STAT_SLAVE ) {
4519 printk(" role: slave\n");
4520 }
4521 else {
4522 printk(" role: ???\n");
4523 }
4524 }
4525
4526#ifdef SK_ZEROCOPY
4527 if (pAC->GIni.GIChipId == CHIP_ID_YUKON)
4528 printk(" scatter-gather: enabled\n");
4529 else
4530 printk(" scatter-gather: disabled\n");
4531
4532#else
4533 printk(" scatter-gather: disabled\n");
4534#endif
4535#endif /* SK98_INFO */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4536
4537 if ((Param.Para32[0] != pAC->ActivePort) &&
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4538 (pAC->RlmtNets == 1)) {
4539 NewPara.Para32[0] = pAC->ActivePort;
4540 NewPara.Para32[1] = Param.Para32[0];
4541 SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
4542 NewPara);
4543 }
4544
4545 /* Inform the world that link protocol is up. */
4546#if 0
4547 pAC->dev[Param.Para32[0]]->flags |= IFF_RUNNING;
4548#endif
4549
4550 break;
4551 case SK_DRV_NET_DOWN: /* SK_U32 Reason */
4552 /* action list 7 */
4553 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4554 ("NET DOWN EVENT "));
4555#ifdef SK98_INFO
4556 printk("%s: network connection down\n", pAC->dev[Param.Para32[1]]->name);
4557#endif
4558#if 0
4559 pAC->dev[Param.Para32[1]]->flags &= ~IFF_RUNNING;
4560#endif
4561 break;
4562 case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4563 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4564 ("PORT SWITCH HARD "));
4565 case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4566 /* action list 6 */
4567 printk("%s: switching to port %c\n", pAC->dev[0]->name,
4568 'A'+Param.Para32[1]);
4569 case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4570 FromPort = Param.Para32[0];
4571 ToPort = Param.Para32[1];
4572 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4573 ("PORT SWITCH EVENT, From: %d To: %d (Pref %d) ",
4574 FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
4575 NewPara.Para64 = FromPort;
4576 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4577 NewPara.Para64 = ToPort;
4578 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4579 spin_lock_irqsave(
4580 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4581 Flags);
4582 spin_lock_irqsave(
4583 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4584 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
4585 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
4586 spin_unlock_irqrestore(
4587 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4588 spin_unlock_irqrestore(
4589 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4590 Flags);
4591
4592 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
4593 ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4594
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4595 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4596 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
4597 spin_lock_irqsave(
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4598 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4599 Flags);
4600 spin_lock_irqsave(
4601 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4602 pAC->ActivePort = ToPort;
4603#if 0
4604 SetQueueSizes(pAC);
4605#else
4606 /* tschilling: New common function with minimum size check. */
4607 DualNet = SK_FALSE;
4608 if (pAC->RlmtNets == 2) {
4609 DualNet = SK_TRUE;
4610 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4611
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4612 if (SkGeInitAssignRamToQueues(
4613 pAC,
4614 pAC->ActivePort,
4615 DualNet)) {
4616 spin_unlock_irqrestore(
4617 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4618 spin_unlock_irqrestore(
4619 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4620 Flags);
4621 printk("SkGeInitAssignRamToQueues failed.\n");
4622 break;
4623 }
4624#endif
4625 /* tschilling: Handling of return values inserted. */
4626 if (SkGeInitPort(pAC, IoC, FromPort) ||
4627 SkGeInitPort(pAC, IoC, ToPort)) {
4628 printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
4629 }
4630 if (Event == SK_DRV_SWITCH_SOFT) {
4631 SkMacRxTxEnable(pAC, IoC, FromPort);
4632 }
4633 SkMacRxTxEnable(pAC, IoC, ToPort);
4634 SkAddrSwap(pAC, IoC, FromPort, ToPort);
4635 SkAddrMcUpdate(pAC, IoC, FromPort);
4636 SkAddrMcUpdate(pAC, IoC, ToPort);
4637 PortReInitBmu(pAC, FromPort);
4638 PortReInitBmu(pAC, ToPort);
4639 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4640 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
4641 ClearAndStartRx(pAC, FromPort);
4642 ClearAndStartRx(pAC, ToPort);
4643 spin_unlock_irqrestore(
4644 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4645 spin_unlock_irqrestore(
4646 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4647 Flags);
4648 break;
4649 case SK_DRV_RLMT_SEND: /* SK_MBUF *pMb */
4650 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4651 ("RLS "));
4652 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
4653 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
4654 skb_put(pMsg, pRlmtMbuf->Length);
4655 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
4656 pMsg) < 0)
4657
4658 DEV_KFREE_SKB_ANY(pMsg);
4659 break;
4660 default:
4661 break;
4662 }
4663 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4664 ("END EVENT "));
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4665
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4666 return (0);
4667} /* SkDrvEvent */
4668
4669
4670/*****************************************************************************
4671 *
4672 * SkErrorLog - log errors
4673 *
4674 * Description:
4675 * This function logs errors to the system buffer and to the console
4676 *
4677 * Returns:
4678 * 0 if everything ok
4679 * < 0 on error
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4680 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4681 */
4682void SkErrorLog(
4683SK_AC *pAC,
4684int ErrClass,
4685int ErrNum,
4686char *pErrorMsg)
4687{
4688char ClassStr[80];
4689
4690 switch (ErrClass) {
4691 case SK_ERRCL_OTHER:
4692 strcpy(ClassStr, "Other error");
4693 break;
4694 case SK_ERRCL_CONFIG:
4695 strcpy(ClassStr, "Configuration error");
4696 break;
4697 case SK_ERRCL_INIT:
4698 strcpy(ClassStr, "Initialization error");
4699 break;
4700 case SK_ERRCL_NORES:
4701 strcpy(ClassStr, "Out of resources error");
4702 break;
4703 case SK_ERRCL_SW:
4704 strcpy(ClassStr, "internal Software error");
4705 break;
4706 case SK_ERRCL_HW:
4707 strcpy(ClassStr, "Hardware failure");
4708 break;
4709 case SK_ERRCL_COMM:
4710 strcpy(ClassStr, "Communication error");
4711 break;
4712 }
4713 printk(KERN_INFO "%s: -- ERROR --\n Class: %s\n"
4714 " Nr: 0x%x\n Msg: %s\n", pAC->dev[0]->name,
4715 ClassStr, ErrNum, pErrorMsg);
4716
4717} /* SkErrorLog */
4718
4719#ifdef DEBUG
4720/****************************************************************************/
4721/* "debug only" section *****************************************************/
4722/****************************************************************************/
4723
4724
4725/*****************************************************************************
4726 *
4727 * DumpMsg - print a frame
4728 *
4729 * Description:
4730 * This function prints frames to the system logfile/to the console.
4731 *
4732 * Returns: N/A
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4733 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4734 */
4735static void DumpMsg(struct sk_buff *skb, char *str)
4736{
4737 int msglen;
4738
4739 if (skb == NULL) {
4740 printk("DumpMsg(): NULL-Message\n");
4741 return;
4742 }
4743
4744 if (skb->data == NULL) {
4745 printk("DumpMsg(): Message empty\n");
4746 return;
4747 }
4748
4749 msglen = skb->len;
4750 if (msglen > 64)
4751 msglen = 64;
4752
4753 printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
4754
4755 DumpData((char *)skb->data, msglen);
4756
4757 printk("------- End of message ---------\n");
4758} /* DumpMsg */
4759
4760
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4761/*****************************************************************************
4762 *
4763 * DumpData - print a data area
4764 *
4765 * Description:
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4766 * This function prints a area of data to the system logfile/to the
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4767 * console.
4768 *
4769 * Returns: N/A
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4770 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4771 */
4772static void DumpData(char *p, int size)
4773{
4774register int i;
4775int haddr, addr;
4776char hex_buffer[180];
4777char asc_buffer[180];
4778char HEXCHAR[] = "0123456789ABCDEF";
4779
4780 addr = 0;
4781 haddr = 0;
4782 hex_buffer[0] = 0;
4783 asc_buffer[0] = 0;
4784 for (i=0; i < size; ) {
4785 if (*p >= '0' && *p <='z')
4786 asc_buffer[addr] = *p;
4787 else
4788 asc_buffer[addr] = '.';
4789 addr++;
4790 asc_buffer[addr] = 0;
4791 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
4792 haddr++;
4793 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
4794 haddr++;
4795 hex_buffer[haddr] = ' ';
4796 haddr++;
4797 hex_buffer[haddr] = 0;
4798 p++;
4799 i++;
4800 if (i%16 == 0) {
4801 printk("%s %s\n", hex_buffer, asc_buffer);
4802 addr = 0;
4803 haddr = 0;
4804 }
4805 }
4806} /* DumpData */
4807
4808
4809/*****************************************************************************
4810 *
4811 * DumpLong - print a data area as long values
4812 *
4813 * Description:
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4814 * This function prints a area of data to the system logfile/to the
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4815 * console.
4816 *
4817 * Returns: N/A
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]4818 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]4819 */
4820static void DumpLong(char *pc, int size)
4821{
4822register int i;
4823int haddr, addr;
4824char hex_buffer[180];
4825char asc_buffer[180];
4826char HEXCHAR[] = "0123456789ABCDEF";
4827long *p;
4828int l;
4829
4830 addr = 0;
4831 haddr = 0;
4832 hex_buffer[0] = 0;
4833 asc_buffer[0] = 0;
4834 p = (long*) pc;
4835 for (i=0; i < size; ) {
4836 l = (long) *p;
4837 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
4838 haddr++;
4839 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
4840 haddr++;
4841 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
4842 haddr++;
4843 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
4844 haddr++;
4845 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
4846 haddr++;
4847 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
4848 haddr++;
4849 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
4850 haddr++;
4851 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
4852 haddr++;
4853 hex_buffer[haddr] = ' ';
4854 haddr++;
4855 hex_buffer[haddr] = 0;
4856 p++;
4857 i++;
4858 if (i%8 == 0) {
4859 printk("%4x %s\n", (i-8)*4, hex_buffer);
4860 haddr = 0;
4861 }
4862 }
4863 printk("------------------------\n");
4864} /* DumpLong */
4865
4866#endif