2 * IBM eServer eHCA Infiniband device driver for Linux on POWER
6 * Authors: Christoph Raisch <raisch@de.ibm.com>
7 * Hoang-Nam Nguyen <hnguyen@de.ibm.com>
8 * Khadija Souissi <souissik@de.ibm.com>
9 * Waleri Fomin <fomin@de.ibm.com>
10 * Heiko J Schick <schickhj@de.ibm.com>
12 * Copyright (c) 2005 IBM Corporation
14 * This source code is distributed under a dual license of GPL v2.0 and OpenIB
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions are met:
22 * Redistributions of source code must retain the above copyright notice, this
23 * list of conditions and the following disclaimer.
25 * Redistributions in binary form must reproduce the above copyright notice,
26 * this list of conditions and the following disclaimer in the documentation
27 * and/or other materials
28 * provided with the distribution.
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
31 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
34 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
37 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
38 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40 * POSSIBILITY OF SUCH DAMAGE.
47 #include <linux/kernel.h>
48 #include <linux/spinlock.h>
49 #include <linux/delay.h>
50 #include <linux/idr.h>
51 #include <linux/kthread.h>
53 #include <linux/mman.h>
54 #include <linux/module.h>
55 #include <linux/moduleparam.h>
56 #include <linux/vmalloc.h>
57 #include <linux/version.h>
58 #include <linux/notifier.h>
59 #include <linux/cpu.h>
60 #include <linux/device.h>
62 #include <asm/atomic.h>
63 #include <asm/abs_addr.h>
64 #include <asm/ibmebus.h>
66 #include <asm/pgtable.h>
67 #include <asm/hvcall.h>
69 extern int ehca_debug_level;
71 #define ehca_dbg(ib_dev, format, arg...) \
73 if (unlikely(ehca_debug_level)) \
74 dev_printk(KERN_DEBUG, (ib_dev)->dma_device, \
75 "PU%04x EHCA_DBG:%s " format "\n", \
76 raw_smp_processor_id(), __FUNCTION__, \
80 #define ehca_info(ib_dev, format, arg...) \
81 dev_info((ib_dev)->dma_device, "PU%04x EHCA_INFO:%s " format "\n", \
82 raw_smp_processor_id(), __FUNCTION__, ## arg)
84 #define ehca_warn(ib_dev, format, arg...) \
85 dev_warn((ib_dev)->dma_device, "PU%04x EHCA_WARN:%s " format "\n", \
86 raw_smp_processor_id(), __FUNCTION__, ## arg)
88 #define ehca_err(ib_dev, format, arg...) \
89 dev_err((ib_dev)->dma_device, "PU%04x EHCA_ERR:%s " format "\n", \
90 raw_smp_processor_id(), __FUNCTION__, ## arg)
92 /* use this one only if no ib_dev available */
93 #define ehca_gen_dbg(format, arg...) \
95 if (unlikely(ehca_debug_level)) \
96 printk(KERN_DEBUG "PU%04x EHCA_DBG:%s " format "\n", \
97 raw_smp_processor_id(), __FUNCTION__, ## arg); \
100 #define ehca_gen_warn(format, arg...) \
101 printk(KERN_INFO "PU%04x EHCA_WARN:%s " format "\n", \
102 raw_smp_processor_id(), __FUNCTION__, ## arg)
104 #define ehca_gen_err(format, arg...) \
105 printk(KERN_ERR "PU%04x EHCA_ERR:%s " format "\n", \
106 raw_smp_processor_id(), __FUNCTION__, ## arg)
109 * ehca_dmp - printk a memory block, whose length is n*8 bytes.
110 * Each line has the following layout:
111 * <format string> adr=X ofs=Y <8 bytes hex> <8 bytes hex>
113 #define ehca_dmp(adr, len, format, args...) \
116 unsigned int l = (unsigned int)(len); \
117 unsigned char *deb = (unsigned char *)(adr); \
118 for (x = 0; x < l; x += 16) { \
119 printk(KERN_INFO "EHCA_DMP:%s " format \
120 " adr=%p ofs=%04x %016lx %016lx\n", \
121 __FUNCTION__, ##args, deb, x, \
122 *((u64 *)&deb[0]), *((u64 *)&deb[8])); \
127 /* define a bitmask, little endian version */
128 #define EHCA_BMASK(pos, length) (((pos) << 16) + (length))
130 /* define a bitmask, the ibm way... */
131 #define EHCA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1))
133 /* internal function, don't use */
134 #define EHCA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff)
136 /* internal function, don't use */
137 #define EHCA_BMASK_MASK(mask) (~0ULL >> ((64 - (mask)) & 0xffff))
140 * EHCA_BMASK_SET - return value shifted and masked by mask
141 * variable|=EHCA_BMASK_SET(MY_MASK,0x4711) ORs the bits in variable
142 * variable&=~EHCA_BMASK_SET(MY_MASK,-1) clears the bits from the mask
145 #define EHCA_BMASK_SET(mask, value) \
146 ((EHCA_BMASK_MASK(mask) & ((u64)(value))) << EHCA_BMASK_SHIFTPOS(mask))
149 * EHCA_BMASK_GET - extract a parameter from value by mask
151 #define EHCA_BMASK_GET(mask, value) \
152 (EHCA_BMASK_MASK(mask) & (((u64)(value)) >> EHCA_BMASK_SHIFTPOS(mask)))
154 /* Converts ehca to ib return code */
155 int ehca2ib_return_code(u64 ehca_rc);
157 #endif /* EHCA_TOOLS_H */