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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-30 12:38:19 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-30 12:38:19 -0400
commit0cd43f83d381c4246a08cd775834833d6fd64805 (patch)
treee69ddf876edfb4ff7d5d5d0c6e7c2ff0be885492 /drivers/ieee1394
parentdb1a19b38f3a85f475b4ad716c71be133d8ca48e (diff)
parent3253b669eed7194ae490acb4aadab7262bbfeb8d (diff)
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (48 commits) ieee1394: raw1394: arm functions slept in atomic context ieee1394: sbp2: enable auto spin-up for all SBP-2 devices MAINTAINERS: updates to IEEE 1394 subsystem maintainership ieee1394: ohci1394: check for errors in suspend or resume set power state of firewire host during suspend ieee1394: ohci1394: more obvious endianess handling ieee1394: ohci1394: fix endianess bug in debug message ieee1394: sbp2: don't prefer MODE SENSE 10 ieee1394: nodemgr: grab class.subsys.rwsem in nodemgr_resume_ne ieee1394: nodemgr: fix rwsem recursion ieee1394: sbp2: more help in Kconfig ieee1394: sbp2: prevent rare deadlock in shutdown ieee1394: sbp2: update includes ieee1394: sbp2: better handling of transport errors ieee1394: sbp2: recheck node generation in sbp2_update ieee1394: sbp2: safer agent reset in error handlers ieee1394: sbp2: handle "sbp2util_node_write_no_wait failed" CONFIG_PM=n slim: drivers/ieee1394/ohci1394.c ieee1394: safer definition of empty macros video1394: add poll file operation support ...
Diffstat (limited to 'drivers/ieee1394')
-rw-r--r--drivers/ieee1394/Kconfig11
-rw-r--r--drivers/ieee1394/csr.c31
-rw-r--r--drivers/ieee1394/csr.h109
-rw-r--r--drivers/ieee1394/dma.c7
-rw-r--r--drivers/ieee1394/dma.h90
-rw-r--r--drivers/ieee1394/dv1394-private.h6
-rw-r--r--drivers/ieee1394/dv1394.c47
-rw-r--r--drivers/ieee1394/eth1394.c12
-rw-r--r--drivers/ieee1394/highlevel.h201
-rw-r--r--drivers/ieee1394/hosts.c23
-rw-r--r--drivers/ieee1394/hosts.h51
-rw-r--r--drivers/ieee1394/ieee1394-ioctl.h9
-rw-r--r--drivers/ieee1394/ieee1394.h316
-rw-r--r--drivers/ieee1394/ieee1394_core.c9
-rw-r--r--drivers/ieee1394/ieee1394_core.h28
-rw-r--r--drivers/ieee1394/ieee1394_hotplug.h30
-rw-r--r--drivers/ieee1394/ieee1394_transactions.c114
-rw-r--r--drivers/ieee1394/ieee1394_transactions.h41
-rw-r--r--drivers/ieee1394/ieee1394_types.h68
-rw-r--r--drivers/ieee1394/iso.c5
-rw-r--r--drivers/ieee1394/iso.h87
-rw-r--r--drivers/ieee1394/nodemgr.c227
-rw-r--r--drivers/ieee1394/nodemgr.h27
-rw-r--r--drivers/ieee1394/ohci1394.c73
-rw-r--r--drivers/ieee1394/raw1394-private.h3
-rw-r--r--drivers/ieee1394/raw1394.c138
-rw-r--r--drivers/ieee1394/sbp2.c481
-rw-r--r--drivers/ieee1394/sbp2.h37
-rw-r--r--drivers/ieee1394/video1394.c52
29 files changed, 1200 insertions, 1133 deletions
diff --git a/drivers/ieee1394/Kconfig b/drivers/ieee1394/Kconfig
index 186737539cf5..2769e505f051 100644
--- a/drivers/ieee1394/Kconfig
+++ b/drivers/ieee1394/Kconfig
@@ -120,12 +120,19 @@ config IEEE1394_VIDEO1394
120 this option only if you have an IEEE 1394 video device connected to 120 this option only if you have an IEEE 1394 video device connected to
121 an OHCI-1394 card. 121 an OHCI-1394 card.
122 122
123comment "SBP-2 support (for storage devices) requires SCSI"
124 depends on IEEE1394 && SCSI=n
125
123config IEEE1394_SBP2 126config IEEE1394_SBP2
124 tristate "SBP-2 support (Harddisks etc.)" 127 tristate "SBP-2 support (Harddisks etc.)"
125 depends on IEEE1394 && SCSI && (PCI || BROKEN) 128 depends on IEEE1394 && SCSI && (PCI || BROKEN)
126 help 129 help
127 This option enables you to use SBP-2 devices connected to your IEEE 130 This option enables you to use SBP-2 devices connected to an IEEE
128 1394 bus. SBP-2 devices include harddrives and DVD devices. 131 1394 bus. SBP-2 devices include storage devices like harddisks and
132 DVD drives, also some other FireWire devices like scanners.
133
134 You should also enable support for disks, CD-ROMs, etc. in the SCSI
135 configuration section.
129 136
130config IEEE1394_SBP2_PHYS_DMA 137config IEEE1394_SBP2_PHYS_DMA
131 bool "Enable replacement for physical DMA in SBP2" 138 bool "Enable replacement for physical DMA in SBP2"
diff --git a/drivers/ieee1394/csr.c b/drivers/ieee1394/csr.c
index 149573db91c5..ab0c80f61b9d 100644
--- a/drivers/ieee1394/csr.c
+++ b/drivers/ieee1394/csr.c
@@ -17,11 +17,13 @@
17 * 17 *
18 */ 18 */
19 19
20#include <linux/string.h> 20#include <linux/jiffies.h>
21#include <linux/kernel.h>
21#include <linux/module.h> 22#include <linux/module.h>
22#include <linux/moduleparam.h> 23#include <linux/moduleparam.h>
23#include <linux/param.h> 24#include <linux/param.h>
24#include <linux/spinlock.h> 25#include <linux/spinlock.h>
26#include <linux/string.h>
25 27
26#include "csr1212.h" 28#include "csr1212.h"
27#include "ieee1394_types.h" 29#include "ieee1394_types.h"
@@ -149,31 +151,18 @@ static void host_reset(struct hpsb_host *host)
149 151
150/* 152/*
151 * HI == seconds (bits 0:2) 153 * HI == seconds (bits 0:2)
152 * LO == fraction units of 1/8000 of a second, as per 1394 (bits 19:31) 154 * LO == fractions of a second in units of 125usec (bits 19:31)
153 *
154 * Convert to units and then to HZ, for comparison to jiffies.
155 *
156 * By default this will end up being 800 units, or 100ms (125usec per
157 * unit).
158 * 155 *
159 * NOTE: The spec says 1/8000, but also says we can compute based on 1/8192 156 * Convert SPLIT_TIMEOUT to jiffies.
160 * like CSR specifies. Should make our math less complex. 157 * The default and minimum as per 1394a-2000 clause 8.3.2.2.6 is 100ms.
161 */ 158 */
162static inline void calculate_expire(struct csr_control *csr) 159static inline void calculate_expire(struct csr_control *csr)
163{ 160{
164 unsigned long units; 161 unsigned long usecs =
165 162 (csr->split_timeout_hi & 0x07) * USEC_PER_SEC +
166 /* Take the seconds, and convert to units */ 163 (csr->split_timeout_lo >> 19) * 125L;
167 units = (unsigned long)(csr->split_timeout_hi & 0x07) << 13;
168
169 /* Add in the fractional units */
170 units += (unsigned long)(csr->split_timeout_lo >> 19);
171
172 /* Convert to jiffies */
173 csr->expire = (unsigned long)(units * HZ) >> 13UL;
174 164
175 /* Just to keep from rounding low */ 165 csr->expire = usecs_to_jiffies(usecs > 100000L ? usecs : 100000L);
176 csr->expire++;
177 166
178 HPSB_VERBOSE("CSR: setting expire to %lu, HZ=%u", csr->expire, HZ); 167 HPSB_VERBOSE("CSR: setting expire to %lu, HZ=%u", csr->expire, HZ);
179} 168}
diff --git a/drivers/ieee1394/csr.h b/drivers/ieee1394/csr.h
index ea9aa4f53ab6..f11546550d84 100644
--- a/drivers/ieee1394/csr.h
+++ b/drivers/ieee1394/csr.h
@@ -1,75 +1,73 @@
1
2#ifndef _IEEE1394_CSR_H 1#ifndef _IEEE1394_CSR_H
3#define _IEEE1394_CSR_H 2#define _IEEE1394_CSR_H
4 3
5#ifdef CONFIG_PREEMPT 4#include <linux/spinlock_types.h>
6#include <linux/sched.h>
7#endif
8 5
9#include "csr1212.h" 6#include "csr1212.h"
7#include "ieee1394_types.h"
10 8
11#define CSR_REGISTER_BASE 0xfffff0000000ULL 9#define CSR_REGISTER_BASE 0xfffff0000000ULL
12 10
13/* register offsets relative to CSR_REGISTER_BASE */ 11/* register offsets relative to CSR_REGISTER_BASE */
14#define CSR_STATE_CLEAR 0x0 12#define CSR_STATE_CLEAR 0x0
15#define CSR_STATE_SET 0x4 13#define CSR_STATE_SET 0x4
16#define CSR_NODE_IDS 0x8 14#define CSR_NODE_IDS 0x8
17#define CSR_RESET_START 0xc 15#define CSR_RESET_START 0xc
18#define CSR_SPLIT_TIMEOUT_HI 0x18 16#define CSR_SPLIT_TIMEOUT_HI 0x18
19#define CSR_SPLIT_TIMEOUT_LO 0x1c 17#define CSR_SPLIT_TIMEOUT_LO 0x1c
20#define CSR_CYCLE_TIME 0x200 18#define CSR_CYCLE_TIME 0x200
21#define CSR_BUS_TIME 0x204 19#define CSR_BUS_TIME 0x204
22#define CSR_BUSY_TIMEOUT 0x210 20#define CSR_BUSY_TIMEOUT 0x210
23#define CSR_BUS_MANAGER_ID 0x21c 21#define CSR_BUS_MANAGER_ID 0x21c
24#define CSR_BANDWIDTH_AVAILABLE 0x220 22#define CSR_BANDWIDTH_AVAILABLE 0x220
25#define CSR_CHANNELS_AVAILABLE 0x224 23#define CSR_CHANNELS_AVAILABLE 0x224
26#define CSR_CHANNELS_AVAILABLE_HI 0x224 24#define CSR_CHANNELS_AVAILABLE_HI 0x224
27#define CSR_CHANNELS_AVAILABLE_LO 0x228 25#define CSR_CHANNELS_AVAILABLE_LO 0x228
28#define CSR_BROADCAST_CHANNEL 0x234 26#define CSR_BROADCAST_CHANNEL 0x234
29#define CSR_CONFIG_ROM 0x400 27#define CSR_CONFIG_ROM 0x400
30#define CSR_CONFIG_ROM_END 0x800 28#define CSR_CONFIG_ROM_END 0x800
31#define CSR_FCP_COMMAND 0xB00 29#define CSR_FCP_COMMAND 0xB00
32#define CSR_FCP_RESPONSE 0xD00 30#define CSR_FCP_RESPONSE 0xD00
33#define CSR_FCP_END 0xF00 31#define CSR_FCP_END 0xF00
34#define CSR_TOPOLOGY_MAP 0x1000 32#define CSR_TOPOLOGY_MAP 0x1000
35#define CSR_TOPOLOGY_MAP_END 0x1400 33#define CSR_TOPOLOGY_MAP_END 0x1400
36#define CSR_SPEED_MAP 0x2000 34#define CSR_SPEED_MAP 0x2000
37#define CSR_SPEED_MAP_END 0x3000 35#define CSR_SPEED_MAP_END 0x3000
38 36
39/* IEEE 1394 bus specific Configuration ROM Key IDs */ 37/* IEEE 1394 bus specific Configuration ROM Key IDs */
40#define IEEE1394_KV_ID_POWER_REQUIREMENTS (0x30) 38#define IEEE1394_KV_ID_POWER_REQUIREMENTS (0x30)
41 39
42/* IEEE 1394 Bus Inforamation Block specifics */ 40/* IEEE 1394 Bus Information Block specifics */
43#define CSR_BUS_INFO_SIZE (5 * sizeof(quadlet_t)) 41#define CSR_BUS_INFO_SIZE (5 * sizeof(quadlet_t))
44 42
45#define CSR_IRMC_SHIFT 31 43#define CSR_IRMC_SHIFT 31
46#define CSR_CMC_SHIFT 30 44#define CSR_CMC_SHIFT 30
47#define CSR_ISC_SHIFT 29 45#define CSR_ISC_SHIFT 29
48#define CSR_BMC_SHIFT 28 46#define CSR_BMC_SHIFT 28
49#define CSR_PMC_SHIFT 27 47#define CSR_PMC_SHIFT 27
50#define CSR_CYC_CLK_ACC_SHIFT 16 48#define CSR_CYC_CLK_ACC_SHIFT 16
51#define CSR_MAX_REC_SHIFT 12 49#define CSR_MAX_REC_SHIFT 12
52#define CSR_MAX_ROM_SHIFT 8 50#define CSR_MAX_ROM_SHIFT 8
53#define CSR_GENERATION_SHIFT 4 51#define CSR_GENERATION_SHIFT 4
54 52
55#define CSR_SET_BUS_INFO_GENERATION(csr, gen) \ 53#define CSR_SET_BUS_INFO_GENERATION(csr, gen) \
56 ((csr)->bus_info_data[2] = \ 54 ((csr)->bus_info_data[2] = \
57 cpu_to_be32((be32_to_cpu((csr)->bus_info_data[2]) & \ 55 cpu_to_be32((be32_to_cpu((csr)->bus_info_data[2]) & \
58 ~(0xf << CSR_GENERATION_SHIFT)) | \ 56 ~(0xf << CSR_GENERATION_SHIFT)) | \
59 (gen) << CSR_GENERATION_SHIFT)) 57 (gen) << CSR_GENERATION_SHIFT))
60 58
61struct csr_control { 59struct csr_control {
62 spinlock_t lock; 60 spinlock_t lock;
63 61
64 quadlet_t state; 62 quadlet_t state;
65 quadlet_t node_ids; 63 quadlet_t node_ids;
66 quadlet_t split_timeout_hi, split_timeout_lo; 64 quadlet_t split_timeout_hi, split_timeout_lo;
67 unsigned long expire; // Calculated from split_timeout 65 unsigned long expire; /* Calculated from split_timeout */
68 quadlet_t cycle_time; 66 quadlet_t cycle_time;
69 quadlet_t bus_time; 67 quadlet_t bus_time;
70 quadlet_t bus_manager_id; 68 quadlet_t bus_manager_id;
71 quadlet_t bandwidth_available; 69 quadlet_t bandwidth_available;
72 quadlet_t channels_available_hi, channels_available_lo; 70 quadlet_t channels_available_hi, channels_available_lo;
73 quadlet_t broadcast_channel; 71 quadlet_t broadcast_channel;
74 72
75 /* Bus Info */ 73 /* Bus Info */
@@ -84,8 +82,8 @@ struct csr_control {
84 82
85 struct csr1212_csr *rom; 83 struct csr1212_csr *rom;
86 84
87 quadlet_t topology_map[256]; 85 quadlet_t topology_map[256];
88 quadlet_t speed_map[1024]; 86 quadlet_t speed_map[1024];
89}; 87};
90 88
91extern struct csr1212_bus_ops csr_bus_ops; 89extern struct csr1212_bus_ops csr_bus_ops;
@@ -93,4 +91,9 @@ extern struct csr1212_bus_ops csr_bus_ops;
93int init_csr(void); 91int init_csr(void);
94void cleanup_csr(void); 92void cleanup_csr(void);
95 93
94/* hpsb_update_config_rom() is deprecated */
95struct hpsb_host;
96int hpsb_update_config_rom(struct hpsb_host *host, const quadlet_t *new_rom,
97 size_t size, unsigned char rom_version);
98
96#endif /* _IEEE1394_CSR_H */ 99#endif /* _IEEE1394_CSR_H */
diff --git a/drivers/ieee1394/dma.c b/drivers/ieee1394/dma.c
index ca5167de707d..c68f328e1a29 100644
--- a/drivers/ieee1394/dma.c
+++ b/drivers/ieee1394/dma.c
@@ -7,10 +7,13 @@
7 * directory of the kernel sources for details. 7 * directory of the kernel sources for details.
8 */ 8 */
9 9
10#include <linux/mm.h>
10#include <linux/module.h> 11#include <linux/module.h>
11#include <linux/vmalloc.h> 12#include <linux/pci.h>
12#include <linux/slab.h> 13#include <linux/slab.h>
13#include <linux/mm.h> 14#include <linux/vmalloc.h>
15#include <asm/scatterlist.h>
16
14#include "dma.h" 17#include "dma.h"
15 18
16/* dma_prog_region */ 19/* dma_prog_region */
diff --git a/drivers/ieee1394/dma.h b/drivers/ieee1394/dma.h
index 061550a6fb99..a1682aba71c7 100644
--- a/drivers/ieee1394/dma.h
+++ b/drivers/ieee1394/dma.h
@@ -10,69 +10,91 @@
10#ifndef IEEE1394_DMA_H 10#ifndef IEEE1394_DMA_H
11#define IEEE1394_DMA_H 11#define IEEE1394_DMA_H
12 12
13#include <linux/pci.h> 13#include <asm/types.h>
14#include <asm/scatterlist.h> 14
15 15struct pci_dev;
16/* struct dma_prog_region 16struct scatterlist;
17 17struct vm_area_struct;
18 a small, physically-contiguous DMA buffer with random-access, 18
19 synchronous usage characteristics 19/**
20*/ 20 * struct dma_prog_region - small contiguous DMA buffer
21 21 * @kvirt: kernel virtual address
22 * @dev: PCI device
23 * @n_pages: number of kernel pages
24 * @bus_addr: base bus address
25 *
26 * a small, physically contiguous DMA buffer with random-access, synchronous
27 * usage characteristics
28 */
22struct dma_prog_region { 29struct dma_prog_region {
23 unsigned char *kvirt; /* kernel virtual address */ 30 unsigned char *kvirt;
24 struct pci_dev *dev; /* PCI device */ 31 struct pci_dev *dev;
25 unsigned int n_pages; /* # of kernel pages */ 32 unsigned int n_pages;
26 dma_addr_t bus_addr; /* base bus address */ 33 dma_addr_t bus_addr;
27}; 34};
28 35
29/* clear out all fields but do not allocate any memory */ 36/* clear out all fields but do not allocate any memory */
30void dma_prog_region_init(struct dma_prog_region *prog); 37void dma_prog_region_init(struct dma_prog_region *prog);
31int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes, struct pci_dev *dev); 38int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes,
39 struct pci_dev *dev);
32void dma_prog_region_free(struct dma_prog_region *prog); 40void dma_prog_region_free(struct dma_prog_region *prog);
33 41
34static inline dma_addr_t dma_prog_region_offset_to_bus(struct dma_prog_region *prog, unsigned long offset) 42static inline dma_addr_t dma_prog_region_offset_to_bus(
43 struct dma_prog_region *prog, unsigned long offset)
35{ 44{
36 return prog->bus_addr + offset; 45 return prog->bus_addr + offset;
37} 46}
38 47
39/* struct dma_region 48/**
40 49 * struct dma_region - large non-contiguous DMA buffer
41 a large, non-physically-contiguous DMA buffer with streaming, 50 * @virt: kernel virtual address
42 asynchronous usage characteristics 51 * @dev: PCI device
43*/ 52 * @n_pages: number of kernel pages
44 53 * @n_dma_pages: number of IOMMU pages
54 * @sglist: IOMMU mapping
55 * @direction: PCI_DMA_TODEVICE, etc.
56 *
57 * a large, non-physically-contiguous DMA buffer with streaming, asynchronous
58 * usage characteristics
59 */
45struct dma_region { 60struct dma_region {
46 unsigned char *kvirt; /* kernel virtual address */ 61 unsigned char *kvirt;
47 struct pci_dev *dev; /* PCI device */ 62 struct pci_dev *dev;
48 unsigned int n_pages; /* # of kernel pages */ 63 unsigned int n_pages;
49 unsigned int n_dma_pages; /* # of IOMMU pages */ 64 unsigned int n_dma_pages;
50 struct scatterlist *sglist; /* IOMMU mapping */ 65 struct scatterlist *sglist;
51 int direction; /* PCI_DMA_TODEVICE, etc */ 66 int direction;
52}; 67};
53 68
54/* clear out all fields but do not allocate anything */ 69/* clear out all fields but do not allocate anything */
55void dma_region_init(struct dma_region *dma); 70void dma_region_init(struct dma_region *dma);
56 71
57/* allocate the buffer and map it to the IOMMU */ 72/* allocate the buffer and map it to the IOMMU */
58int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes, struct pci_dev *dev, int direction); 73int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes,
74 struct pci_dev *dev, int direction);
59 75
60/* unmap and free the buffer */ 76/* unmap and free the buffer */
61void dma_region_free(struct dma_region *dma); 77void dma_region_free(struct dma_region *dma);
62 78
63/* sync the CPU's view of the buffer */ 79/* sync the CPU's view of the buffer */
64void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset, unsigned long len); 80void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset,
81 unsigned long len);
82
65/* sync the IO bus' view of the buffer */ 83/* sync the IO bus' view of the buffer */
66void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset, unsigned long len); 84void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset,
85 unsigned long len);
67 86
68/* map the buffer into a user space process */ 87/* map the buffer into a user space process */
69int dma_region_mmap(struct dma_region *dma, struct file *file, struct vm_area_struct *vma); 88int dma_region_mmap(struct dma_region *dma, struct file *file,
89 struct vm_area_struct *vma);
70 90
71/* macro to index into a DMA region (or dma_prog_region) */ 91/* macro to index into a DMA region (or dma_prog_region) */
72#define dma_region_i(_dma, _type, _index) ( ((_type*) ((_dma)->kvirt)) + (_index) ) 92#define dma_region_i(_dma, _type, _index) \
93 ( ((_type*) ((_dma)->kvirt)) + (_index) )
73 94
74/* return the DMA bus address of the byte with the given offset 95/* return the DMA bus address of the byte with the given offset
75 relative to the beginning of the dma_region */ 96 * relative to the beginning of the dma_region */
76dma_addr_t dma_region_offset_to_bus(struct dma_region *dma, unsigned long offset); 97dma_addr_t dma_region_offset_to_bus(struct dma_region *dma,
98 unsigned long offset);
77 99
78#endif /* IEEE1394_DMA_H */ 100#endif /* IEEE1394_DMA_H */
diff --git a/drivers/ieee1394/dv1394-private.h b/drivers/ieee1394/dv1394-private.h
index 80b5ac7fe383..7d1d2845b420 100644
--- a/drivers/ieee1394/dv1394-private.h
+++ b/drivers/ieee1394/dv1394-private.h
@@ -460,7 +460,7 @@ struct video_card {
460 int dma_running; 460 int dma_running;
461 461
462 /* 462 /*
463 3) the sleeping semaphore 'sem' - this is used from process context only, 463 3) the sleeping mutex 'mtx' - this is used from process context only,
464 to serialize various operations on the video_card. Even though only one 464 to serialize various operations on the video_card. Even though only one
465 open() is allowed, we still need to prevent multiple threads of execution 465 open() is allowed, we still need to prevent multiple threads of execution
466 from entering calls like read, write, ioctl, etc. 466 from entering calls like read, write, ioctl, etc.
@@ -468,9 +468,9 @@ struct video_card {
468 I honestly can't think of a good reason to use dv1394 from several threads 468 I honestly can't think of a good reason to use dv1394 from several threads
469 at once, but we need to serialize anyway to prevent oopses =). 469 at once, but we need to serialize anyway to prevent oopses =).
470 470
471 NOTE: if you need both spinlock and sem, take sem first to avoid deadlock! 471 NOTE: if you need both spinlock and mtx, take mtx first to avoid deadlock!
472 */ 472 */
473 struct semaphore sem; 473 struct mutex mtx;
474 474
475 /* people waiting for buffer space, please form a line here... */ 475 /* people waiting for buffer space, please form a line here... */
476 wait_queue_head_t waitq; 476 wait_queue_head_t waitq;
diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index 87532dd43374..6c72f04b2b5d 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -95,6 +95,7 @@
95#include <linux/fs.h> 95#include <linux/fs.h>
96#include <linux/poll.h> 96#include <linux/poll.h>
97#include <linux/smp_lock.h> 97#include <linux/smp_lock.h>
98#include <linux/mutex.h>
98#include <linux/bitops.h> 99#include <linux/bitops.h>
99#include <asm/byteorder.h> 100#include <asm/byteorder.h>
100#include <asm/atomic.h> 101#include <asm/atomic.h>
@@ -110,15 +111,15 @@
110#include <linux/compat.h> 111#include <linux/compat.h>
111#include <linux/cdev.h> 112#include <linux/cdev.h>
112 113
114#include "dv1394.h"
115#include "dv1394-private.h"
116#include "highlevel.h"
117#include "hosts.h"
113#include "ieee1394.h" 118#include "ieee1394.h"
119#include "ieee1394_core.h"
120#include "ieee1394_hotplug.h"
114#include "ieee1394_types.h" 121#include "ieee1394_types.h"
115#include "nodemgr.h" 122#include "nodemgr.h"
116#include "hosts.h"
117#include "ieee1394_core.h"
118#include "highlevel.h"
119#include "dv1394.h"
120#include "dv1394-private.h"
121
122#include "ohci1394.h" 123#include "ohci1394.h"
123 124
124/* DEBUG LEVELS: 125/* DEBUG LEVELS:
@@ -136,13 +137,13 @@
136#if DV1394_DEBUG_LEVEL >= 2 137#if DV1394_DEBUG_LEVEL >= 2
137#define irq_printk( args... ) printk( args ) 138#define irq_printk( args... ) printk( args )
138#else 139#else
139#define irq_printk( args... ) 140#define irq_printk( args... ) do {} while (0)
140#endif 141#endif
141 142
142#if DV1394_DEBUG_LEVEL >= 1 143#if DV1394_DEBUG_LEVEL >= 1
143#define debug_printk( args... ) printk( args) 144#define debug_printk( args... ) printk( args)
144#else 145#else
145#define debug_printk( args... ) 146#define debug_printk( args... ) do {} while (0)
146#endif 147#endif
147 148
148/* issue a dummy PCI read to force the preceding write 149/* issue a dummy PCI read to force the preceding write
@@ -247,7 +248,7 @@ static void frame_delete(struct frame *f)
247 248
248 Frame_prepare() must be called OUTSIDE the video->spinlock. 249 Frame_prepare() must be called OUTSIDE the video->spinlock.
249 However, frame_prepare() must still be serialized, so 250 However, frame_prepare() must still be serialized, so
250 it should be called WITH the video->sem taken. 251 it should be called WITH the video->mtx taken.
251 */ 252 */
252 253
253static void frame_prepare(struct video_card *video, unsigned int this_frame) 254static void frame_prepare(struct video_card *video, unsigned int this_frame)
@@ -1271,7 +1272,7 @@ static int dv1394_mmap(struct file *file, struct vm_area_struct *vma)
1271 int retval = -EINVAL; 1272 int retval = -EINVAL;
1272 1273
1273 /* serialize mmap */ 1274 /* serialize mmap */
1274 down(&video->sem); 1275 mutex_lock(&video->mtx);
1275 1276
1276 if ( ! video_card_initialized(video) ) { 1277 if ( ! video_card_initialized(video) ) {
1277 retval = do_dv1394_init_default(video); 1278 retval = do_dv1394_init_default(video);
@@ -1281,7 +1282,7 @@ static int dv1394_mmap(struct file *file, struct vm_area_struct *vma)
1281 1282
1282 retval = dma_region_mmap(&video->dv_buf, file, vma); 1283 retval = dma_region_mmap(&video->dv_buf, file, vma);
1283out: 1284out:
1284 up(&video->sem); 1285 mutex_unlock(&video->mtx);
1285 return retval; 1286 return retval;
1286} 1287}
1287 1288
@@ -1337,17 +1338,17 @@ static ssize_t dv1394_write(struct file *file, const char __user *buffer, size_t
1337 1338
1338 /* serialize this to prevent multi-threaded mayhem */ 1339 /* serialize this to prevent multi-threaded mayhem */
1339 if (file->f_flags & O_NONBLOCK) { 1340 if (file->f_flags & O_NONBLOCK) {
1340 if (down_trylock(&video->sem)) 1341 if (!mutex_trylock(&video->mtx))
1341 return -EAGAIN; 1342 return -EAGAIN;
1342 } else { 1343 } else {
1343 if (down_interruptible(&video->sem)) 1344 if (mutex_lock_interruptible(&video->mtx))
1344 return -ERESTARTSYS; 1345 return -ERESTARTSYS;
1345 } 1346 }
1346 1347
1347 if ( !video_card_initialized(video) ) { 1348 if ( !video_card_initialized(video) ) {
1348 ret = do_dv1394_init_default(video); 1349 ret = do_dv1394_init_default(video);
1349 if (ret) { 1350 if (ret) {
1350 up(&video->sem); 1351 mutex_unlock(&video->mtx);
1351 return ret; 1352 return ret;
1352 } 1353 }
1353 } 1354 }
@@ -1418,7 +1419,7 @@ static ssize_t dv1394_write(struct file *file, const char __user *buffer, size_t
1418 1419
1419 remove_wait_queue(&video->waitq, &wait); 1420 remove_wait_queue(&video->waitq, &wait);
1420 set_current_state(TASK_RUNNING); 1421 set_current_state(TASK_RUNNING);
1421 up(&video->sem); 1422 mutex_unlock(&video->mtx);
1422 return ret; 1423 return ret;
1423} 1424}
1424 1425
@@ -1434,17 +1435,17 @@ static ssize_t dv1394_read(struct file *file, char __user *buffer, size_t count
1434 1435
1435 /* serialize this to prevent multi-threaded mayhem */ 1436 /* serialize this to prevent multi-threaded mayhem */
1436 if (file->f_flags & O_NONBLOCK) { 1437 if (file->f_flags & O_NONBLOCK) {
1437 if (down_trylock(&video->sem)) 1438 if (!mutex_trylock(&video->mtx))
1438 return -EAGAIN; 1439 return -EAGAIN;
1439 } else { 1440 } else {
1440 if (down_interruptible(&video->sem)) 1441 if (mutex_lock_interruptible(&video->mtx))
1441 return -ERESTARTSYS; 1442 return -ERESTARTSYS;
1442 } 1443 }
1443 1444
1444 if ( !video_card_initialized(video) ) { 1445 if ( !video_card_initialized(video) ) {
1445 ret = do_dv1394_init_default(video); 1446 ret = do_dv1394_init_default(video);
1446 if (ret) { 1447 if (ret) {
1447 up(&video->sem); 1448 mutex_unlock(&video->mtx);
1448 return ret; 1449 return ret;
1449 } 1450 }
1450 video->continuity_counter = -1; 1451 video->continuity_counter = -1;
@@ -1526,7 +1527,7 @@ static ssize_t dv1394_read(struct file *file, char __user *buffer, size_t count
1526 1527
1527 remove_wait_queue(&video->waitq, &wait); 1528 remove_wait_queue(&video->waitq, &wait);
1528 set_current_state(TASK_RUNNING); 1529 set_current_state(TASK_RUNNING);
1529 up(&video->sem); 1530 mutex_unlock(&video->mtx);
1530 return ret; 1531 return ret;
1531} 1532}
1532 1533
@@ -1547,12 +1548,12 @@ static long dv1394_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1547 1548
1548 /* serialize this to prevent multi-threaded mayhem */ 1549 /* serialize this to prevent multi-threaded mayhem */
1549 if (file->f_flags & O_NONBLOCK) { 1550 if (file->f_flags & O_NONBLOCK) {
1550 if (down_trylock(&video->sem)) { 1551 if (!mutex_trylock(&video->mtx)) {
1551 unlock_kernel(); 1552 unlock_kernel();
1552 return -EAGAIN; 1553 return -EAGAIN;
1553 } 1554 }
1554 } else { 1555 } else {
1555 if (down_interruptible(&video->sem)) { 1556 if (mutex_lock_interruptible(&video->mtx)) {
1556 unlock_kernel(); 1557 unlock_kernel();
1557 return -ERESTARTSYS; 1558 return -ERESTARTSYS;
1558 } 1559 }
@@ -1778,7 +1779,7 @@ static long dv1394_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1778 } 1779 }
1779 1780
1780 out: 1781 out:
1781 up(&video->sem); 1782 mutex_unlock(&video->mtx);
1782 unlock_kernel(); 1783 unlock_kernel();
1783 return ret; 1784 return ret;
1784} 1785}
@@ -2253,7 +2254,7 @@ static int dv1394_init(struct ti_ohci *ohci, enum pal_or_ntsc format, enum modes
2253 clear_bit(0, &video->open); 2254 clear_bit(0, &video->open);
2254 spin_lock_init(&video->spinlock); 2255 spin_lock_init(&video->spinlock);
2255 video->dma_running = 0; 2256 video->dma_running = 0;
2256 init_MUTEX(&video->sem); 2257 mutex_init(&video->mtx);
2257 init_waitqueue_head(&video->waitq); 2258 init_waitqueue_head(&video->waitq);
2258 video->fasync = NULL; 2259 video->fasync = NULL;
2259 2260
diff --git a/drivers/ieee1394/eth1394.c b/drivers/ieee1394/eth1394.c
index 2d5b57be98c3..8a7b8fab6238 100644
--- a/drivers/ieee1394/eth1394.c
+++ b/drivers/ieee1394/eth1394.c
@@ -64,19 +64,19 @@
64#include <linux/ethtool.h> 64#include <linux/ethtool.h>
65#include <asm/uaccess.h> 65#include <asm/uaccess.h>
66#include <asm/delay.h> 66#include <asm/delay.h>
67#include <asm/semaphore.h>
68#include <net/arp.h> 67#include <net/arp.h>
69 68
69#include "config_roms.h"
70#include "csr1212.h" 70#include "csr1212.h"
71#include "ieee1394_types.h" 71#include "eth1394.h"
72#include "highlevel.h"
73#include "ieee1394.h"
72#include "ieee1394_core.h" 74#include "ieee1394_core.h"
75#include "ieee1394_hotplug.h"
73#include "ieee1394_transactions.h" 76#include "ieee1394_transactions.h"
74#include "ieee1394.h" 77#include "ieee1394_types.h"
75#include "highlevel.h"
76#include "iso.h" 78#include "iso.h"
77#include "nodemgr.h" 79#include "nodemgr.h"
78#include "eth1394.h"
79#include "config_roms.h"
80 80
81#define ETH1394_PRINT_G(level, fmt, args...) \ 81#define ETH1394_PRINT_G(level, fmt, args...) \
82 printk(level "%s: " fmt, driver_name, ## args) 82 printk(level "%s: " fmt, driver_name, ## args)
diff --git a/drivers/ieee1394/highlevel.h b/drivers/ieee1394/highlevel.h
index e119fb87e5b5..50f2dd2c7e20 100644
--- a/drivers/ieee1394/highlevel.h
+++ b/drivers/ieee1394/highlevel.h
@@ -1,60 +1,61 @@
1
2#ifndef IEEE1394_HIGHLEVEL_H 1#ifndef IEEE1394_HIGHLEVEL_H
3#define IEEE1394_HIGHLEVEL_H 2#define IEEE1394_HIGHLEVEL_H
4 3
4#include <linux/list.h>
5#include <linux/spinlock_types.h>
6#include <linux/types.h>
5 7
6struct hpsb_address_serve { 8struct module;
7 struct list_head host_list; /* per host list */
8 9
9 struct list_head hl_list; /* hpsb_highlevel list */ 10#include "ieee1394_types.h"
10 11
11 struct hpsb_address_ops *op; 12struct hpsb_host;
12 13
14/* internal to ieee1394 core */
15struct hpsb_address_serve {
16 struct list_head host_list; /* per host list */
17 struct list_head hl_list; /* hpsb_highlevel list */
18 struct hpsb_address_ops *op;
13 struct hpsb_host *host; 19 struct hpsb_host *host;
14 20 u64 start; /* first address handled, quadlet aligned */
15 /* first address handled and first address behind, quadlet aligned */ 21 u64 end; /* first address behind, quadlet aligned */
16 u64 start, end;
17}; 22};
18 23
19 24/* Only the following structures are of interest to actual highlevel drivers. */
20/*
21 * The above structs are internal to highlevel driver handling. Only the
22 * following structures are of interest to actual highlevel drivers.
23 */
24 25
25struct hpsb_highlevel { 26struct hpsb_highlevel {
26 struct module *owner; 27 struct module *owner;
27 const char *name; 28 const char *name;
28 29
29 /* Any of the following pointers can legally be NULL, except for 30 /* Any of the following pointers can legally be NULL, except for
30 * iso_receive which can only be NULL when you don't request 31 * iso_receive which can only be NULL when you don't request
31 * channels. */ 32 * channels. */
32 33
33 /* New host initialized. Will also be called during 34 /* New host initialized. Will also be called during
34 * hpsb_register_highlevel for all hosts already installed. */ 35 * hpsb_register_highlevel for all hosts already installed. */
35 void (*add_host) (struct hpsb_host *host); 36 void (*add_host)(struct hpsb_host *host);
36 37
37 /* Host about to be removed. Will also be called during 38 /* Host about to be removed. Will also be called during
38 * hpsb_unregister_highlevel once for each host. */ 39 * hpsb_unregister_highlevel once for each host. */
39 void (*remove_host) (struct hpsb_host *host); 40 void (*remove_host)(struct hpsb_host *host);
40 41
41 /* Host experienced bus reset with possible configuration changes. 42 /* Host experienced bus reset with possible configuration changes.
42 * Note that this one may occur during interrupt/bottom half handling. 43 * Note that this one may occur during interrupt/bottom half handling.
43 * You can not expect to be able to do stock hpsb_reads. */ 44 * You can not expect to be able to do stock hpsb_reads. */
44 void (*host_reset) (struct hpsb_host *host); 45 void (*host_reset)(struct hpsb_host *host);
45 46
46 /* An isochronous packet was received. Channel contains the channel 47 /* An isochronous packet was received. Channel contains the channel
47 * number for your convenience, it is also contained in the included 48 * number for your convenience, it is also contained in the included
48 * packet header (first quadlet, CRCs are missing). You may get called 49 * packet header (first quadlet, CRCs are missing). You may get called
49 * for channel/host combinations you did not request. */ 50 * for channel/host combinations you did not request. */
50 void (*iso_receive) (struct hpsb_host *host, int channel, 51 void (*iso_receive)(struct hpsb_host *host, int channel,
51 quadlet_t *data, size_t length); 52 quadlet_t *data, size_t length);
52 53
53 /* A write request was received on either the FCP_COMMAND (direction = 54 /* A write request was received on either the FCP_COMMAND (direction =
54 * 0) or the FCP_RESPONSE (direction = 1) register. The cts arg 55 * 0) or the FCP_RESPONSE (direction = 1) register. The cts arg
55 * contains the cts field (first byte of data). */ 56 * contains the cts field (first byte of data). */
56 void (*fcp_request) (struct hpsb_host *host, int nodeid, int direction, 57 void (*fcp_request)(struct hpsb_host *host, int nodeid, int direction,
57 int cts, u8 *data, size_t length); 58 int cts, u8 *data, size_t length);
58 59
59 /* These are initialized by the subsystem when the 60 /* These are initialized by the subsystem when the
60 * hpsb_higlevel is registered. */ 61 * hpsb_higlevel is registered. */
@@ -67,61 +68,62 @@ struct hpsb_highlevel {
67}; 68};
68 69
69struct hpsb_address_ops { 70struct hpsb_address_ops {
70 /* 71 /*
71 * Null function pointers will make the respective operation complete 72 * Null function pointers will make the respective operation complete
72 * with RCODE_TYPE_ERROR. Makes for easy to implement read-only 73 * with RCODE_TYPE_ERROR. Makes for easy to implement read-only
73 * registers (just leave everything but read NULL). 74 * registers (just leave everything but read NULL).
74 * 75 *
75 * All functions shall return appropriate IEEE 1394 rcodes. 76 * All functions shall return appropriate IEEE 1394 rcodes.
76 */ 77 */
77 78
78 /* These functions have to implement block reads for themselves. */ 79 /* These functions have to implement block reads for themselves.
79 /* These functions either return a response code 80 *
80 or a negative number. In the first case a response will be generated; in the 81 * These functions either return a response code or a negative number.
81 later case, no response will be sent and the driver, that handled the request 82 * In the first case a response will be generated. In the latter case,
82 will send the response itself 83 * no response will be sent and the driver which handled the request
83 */ 84 * will send the response itself. */
84 int (*read) (struct hpsb_host *host, int nodeid, quadlet_t *buffer, 85 int (*read)(struct hpsb_host *host, int nodeid, quadlet_t *buffer,
85 u64 addr, size_t length, u16 flags); 86 u64 addr, size_t length, u16 flags);
86 int (*write) (struct hpsb_host *host, int nodeid, int destid, 87 int (*write)(struct hpsb_host *host, int nodeid, int destid,
87 quadlet_t *data, u64 addr, size_t length, u16 flags); 88 quadlet_t *data, u64 addr, size_t length, u16 flags);
88 89
89 /* Lock transactions: write results of ext_tcode operation into 90 /* Lock transactions: write results of ext_tcode operation into
90 * *store. */ 91 * *store. */
91 int (*lock) (struct hpsb_host *host, int nodeid, quadlet_t *store, 92 int (*lock)(struct hpsb_host *host, int nodeid, quadlet_t *store,
92 u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, u16 flags); 93 u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
93 int (*lock64) (struct hpsb_host *host, int nodeid, octlet_t *store, 94 u16 flags);
94 u64 addr, octlet_t data, octlet_t arg, int ext_tcode, u16 flags); 95 int (*lock64)(struct hpsb_host *host, int nodeid, octlet_t *store,
96 u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
97 u16 flags);
95}; 98};
96 99
97
98void highlevel_add_host(struct hpsb_host *host); 100void highlevel_add_host(struct hpsb_host *host);
99void highlevel_remove_host(struct hpsb_host *host); 101void highlevel_remove_host(struct hpsb_host *host);
100void highlevel_host_reset(struct hpsb_host *host); 102void highlevel_host_reset(struct hpsb_host *host);
101 103
102 104/*
103/* these functions are called to handle transactions. They are called, when 105 * These functions are called to handle transactions. They are called when a
104 a packet arrives. The flags argument contains the second word of the first header 106 * packet arrives. The flags argument contains the second word of the first
105 quadlet of the incoming packet (containing transaction label, retry code, 107 * header quadlet of the incoming packet (containing transaction label, retry
106 transaction code and priority). These functions either return a response code 108 * code, transaction code and priority). These functions either return a
107 or a negative number. In the first case a response will be generated; in the 109 * response code or a negative number. In the first case a response will be
108 later case, no response will be sent and the driver, that handled the request 110 * generated. In the latter case, no response will be sent and the driver which
109 will send the response itself. 111 * handled the request will send the response itself.
110*/ 112 */
111int highlevel_read(struct hpsb_host *host, int nodeid, void *data, 113int highlevel_read(struct hpsb_host *host, int nodeid, void *data, u64 addr,
112 u64 addr, unsigned int length, u16 flags); 114 unsigned int length, u16 flags);
113int highlevel_write(struct hpsb_host *host, int nodeid, int destid, 115int highlevel_write(struct hpsb_host *host, int nodeid, int destid, void *data,
114 void *data, u64 addr, unsigned int length, u16 flags); 116 u64 addr, unsigned int length, u16 flags);
115int highlevel_lock(struct hpsb_host *host, int nodeid, quadlet_t *store, 117int highlevel_lock(struct hpsb_host *host, int nodeid, quadlet_t *store,
116 u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, u16 flags); 118 u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
119 u16 flags);
117int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store, 120int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
118 u64 addr, octlet_t data, octlet_t arg, int ext_tcode, u16 flags); 121 u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
122 u16 flags);
119 123
120void highlevel_iso_receive(struct hpsb_host *host, void *data, 124void highlevel_iso_receive(struct hpsb_host *host, void *data, size_t length);
121 size_t length);
122void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction, 125void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
123 void *data, size_t length); 126 void *data, size_t length);
124
125 127
126/* 128/*
127 * Register highlevel driver. The name pointer has to stay valid at all times 129 * Register highlevel driver. The name pointer has to stay valid at all times
@@ -132,13 +134,15 @@ void hpsb_unregister_highlevel(struct hpsb_highlevel *hl);
132 134
133/* 135/*
134 * Register handlers for host address spaces. Start and end are 48 bit pointers 136 * Register handlers for host address spaces. Start and end are 48 bit pointers
135 * and have to be quadlet aligned (end points to the first address behind the 137 * and have to be quadlet aligned. Argument "end" points to the first address
136 * handled addresses. This function can be called multiple times for a single 138 * behind the handled addresses. This function can be called multiple times for
137 * hpsb_highlevel to implement sparse register sets. The requested region must 139 * a single hpsb_highlevel to implement sparse register sets. The requested
138 * not overlap any previously allocated region, otherwise registering will fail. 140 * region must not overlap any previously allocated region, otherwise
141 * registering will fail.
139 * 142 *
140 * It returns true for successful allocation. There is no unregister function, 143 * It returns true for successful allocation. Address spaces can be
141 * all address spaces are deallocated together with the hpsb_highlevel. 144 * unregistered with hpsb_unregister_addrspace. All remaining address spaces
145 * are automatically deallocated together with the hpsb_highlevel.
142 */ 146 */
143u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl, 147u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
144 struct hpsb_host *host, 148 struct hpsb_host *host,
@@ -146,20 +150,18 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
146 u64 size, u64 alignment, 150 u64 size, u64 alignment,
147 u64 start, u64 end); 151 u64 start, u64 end);
148int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host, 152int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
149 struct hpsb_address_ops *ops, u64 start, u64 end); 153 struct hpsb_address_ops *ops, u64 start, u64 end);
150
151int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host, 154int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
152 u64 start); 155 u64 start);
153 156
154/* 157/*
155 * Enable or disable receving a certain isochronous channel through the 158 * Enable or disable receving a certain isochronous channel through the
156 * iso_receive op. 159 * iso_receive op.
157 */ 160 */
158int hpsb_listen_channel(struct hpsb_highlevel *hl, struct hpsb_host *host, 161int hpsb_listen_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
159 unsigned int channel); 162 unsigned int channel);
160void hpsb_unlisten_channel(struct hpsb_highlevel *hl, struct hpsb_host *host, 163void hpsb_unlisten_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
161 unsigned int channel); 164 unsigned int channel);
162
163 165
164/* Retrieve a hostinfo pointer bound to this driver/host */ 166/* Retrieve a hostinfo pointer bound to this driver/host */
165void *hpsb_get_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host); 167void *hpsb_get_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host);
@@ -172,19 +174,24 @@ void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
172void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host); 174void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host);
173 175
174/* Set an alternate lookup key for the hostinfo bound to this driver/host */ 176/* Set an alternate lookup key for the hostinfo bound to this driver/host */
175void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host, unsigned long key); 177void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host,
178 unsigned long key);
176 179
177/* Retrieve the alternate lookup key for the hostinfo bound to this driver/host */ 180/* Retrieve the alternate lookup key for the hostinfo bound to this
178unsigned long hpsb_get_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host); 181 * driver/host */
182unsigned long hpsb_get_hostinfo_key(struct hpsb_highlevel *hl,
183 struct hpsb_host *host);
179 184
180/* Retrieve a hostinfo pointer bound to this driver using its alternate key */ 185/* Retrieve a hostinfo pointer bound to this driver using its alternate key */
181void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key); 186void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key);
182 187
183/* Set the hostinfo pointer to something useful. Usually follows a call to 188/* Set the hostinfo pointer to something useful. Usually follows a call to
184 * hpsb_create_hostinfo, where the size is 0. */ 189 * hpsb_create_hostinfo, where the size is 0. */
185int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host, void *data); 190int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
191 void *data);
186 192
187/* Retrieve hpsb_host using a highlevel handle and a key */ 193/* Retrieve hpsb_host using a highlevel handle and a key */
188struct hpsb_host *hpsb_get_host_bykey(struct hpsb_highlevel *hl, unsigned long key); 194struct hpsb_host *hpsb_get_host_bykey(struct hpsb_highlevel *hl,
195 unsigned long key);
189 196
190#endif /* IEEE1394_HIGHLEVEL_H */ 197#endif /* IEEE1394_HIGHLEVEL_H */
diff --git a/drivers/ieee1394/hosts.c b/drivers/ieee1394/hosts.c
index 4feead4a35c5..d90a3a1898c0 100644
--- a/drivers/ieee1394/hosts.c
+++ b/drivers/ieee1394/hosts.c
@@ -90,6 +90,16 @@ static int alloc_hostnum_cb(struct hpsb_host *host, void *__data)
90 return 0; 90 return 0;
91} 91}
92 92
93/*
94 * The pending_packet_queue is special in that it's processed
95 * from hardirq context too (such as hpsb_bus_reset()). Hence
96 * split the lock class from the usual networking skb-head
97 * lock class by using a separate key for it:
98 */
99static struct lock_class_key pending_packet_queue_key;
100
101static DEFINE_MUTEX(host_num_alloc);
102
93/** 103/**
94 * hpsb_alloc_host - allocate a new host controller. 104 * hpsb_alloc_host - allocate a new host controller.
95 * @drv: the driver that will manage the host controller 105 * @drv: the driver that will manage the host controller
@@ -105,16 +115,6 @@ static int alloc_hostnum_cb(struct hpsb_host *host, void *__data)
105 * Return Value: a pointer to the &hpsb_host if successful, %NULL if 115 * Return Value: a pointer to the &hpsb_host if successful, %NULL if
106 * no memory was available. 116 * no memory was available.
107 */ 117 */
108static DEFINE_MUTEX(host_num_alloc);
109
110/*
111 * The pending_packet_queue is special in that it's processed
112 * from hardirq context too (such as hpsb_bus_reset()). Hence
113 * split the lock class from the usual networking skb-head
114 * lock class by using a separate key for it:
115 */
116static struct lock_class_key pending_packet_queue_key;
117
118struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra, 118struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra,
119 struct device *dev) 119 struct device *dev)
120{ 120{
@@ -143,9 +143,6 @@ struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra,
143 for (i = 2; i < 16; i++) 143 for (i = 2; i < 16; i++)
144 h->csr.gen_timestamp[i] = jiffies - 60 * HZ; 144 h->csr.gen_timestamp[i] = jiffies - 60 * HZ;
145 145
146 for (i = 0; i < ARRAY_SIZE(h->tpool); i++)
147 HPSB_TPOOL_INIT(&h->tpool[i]);
148
149 atomic_set(&h->generation, 0); 146 atomic_set(&h->generation, 0);
150 147
151 INIT_WORK(&h->delayed_reset, delayed_reset_bus, h); 148 INIT_WORK(&h->delayed_reset, delayed_reset_bus, h);
diff --git a/drivers/ieee1394/hosts.h b/drivers/ieee1394/hosts.h
index 9ad4b2463077..bc6dbfadb891 100644
--- a/drivers/ieee1394/hosts.h
+++ b/drivers/ieee1394/hosts.h
@@ -2,17 +2,19 @@
2#define _IEEE1394_HOSTS_H 2#define _IEEE1394_HOSTS_H
3 3
4#include <linux/device.h> 4#include <linux/device.h>
5#include <linux/wait.h>
6#include <linux/list.h> 5#include <linux/list.h>
7#include <linux/timer.h>
8#include <linux/skbuff.h> 6#include <linux/skbuff.h>
7#include <linux/timer.h>
8#include <linux/types.h>
9#include <linux/workqueue.h>
10#include <asm/atomic.h>
9 11
10#include <asm/semaphore.h> 12struct pci_dev;
13struct module;
11 14
12#include "ieee1394_types.h" 15#include "ieee1394_types.h"
13#include "csr.h" 16#include "csr.h"
14 17
15
16struct hpsb_packet; 18struct hpsb_packet;
17struct hpsb_iso; 19struct hpsb_iso;
18 20
@@ -33,7 +35,6 @@ struct hpsb_host {
33 int node_count; /* number of identified nodes on this bus */ 35 int node_count; /* number of identified nodes on this bus */
34 int selfid_count; /* total number of SelfIDs received */ 36 int selfid_count; /* total number of SelfIDs received */
35 int nodes_active; /* number of nodes with active link layer */ 37 int nodes_active; /* number of nodes with active link layer */
36 u8 speed[ALL_NODES]; /* speed between each node and local node */
37 38
38 nodeid_t node_id; /* node ID of this host */ 39 nodeid_t node_id; /* node ID of this host */
39 nodeid_t irm_id; /* ID of this bus' isochronous resource manager */ 40 nodeid_t irm_id; /* ID of this bus' isochronous resource manager */
@@ -53,31 +54,29 @@ struct hpsb_host {
53 int reset_retries; 54 int reset_retries;
54 quadlet_t *topology_map; 55 quadlet_t *topology_map;
55 u8 *speed_map; 56 u8 *speed_map;
56 struct csr_control csr;
57
58 /* Per node tlabel pool allocation */
59 struct hpsb_tlabel_pool tpool[ALL_NODES];
60 57
58 int id;
61 struct hpsb_host_driver *driver; 59 struct hpsb_host_driver *driver;
62
63 struct pci_dev *pdev; 60 struct pci_dev *pdev;
64
65 int id;
66
67 struct device device; 61 struct device device;
68 struct class_device class_dev; 62 struct class_device class_dev;
69 63
70 int update_config_rom; 64 int update_config_rom;
71 struct work_struct delayed_reset; 65 struct work_struct delayed_reset;
72
73 unsigned int config_roms; 66 unsigned int config_roms;
74 67
75 struct list_head addr_space; 68 struct list_head addr_space;
76 u64 low_addr_space; /* upper bound of physical DMA area */ 69 u64 low_addr_space; /* upper bound of physical DMA area */
77 u64 middle_addr_space; /* upper bound of posted write area */ 70 u64 middle_addr_space; /* upper bound of posted write area */
78};
79 71
72 u8 speed[ALL_NODES]; /* speed between each node and local node */
73
74 /* per node tlabel allocation */
75 u8 next_tl[ALL_NODES];
76 struct { DECLARE_BITMAP(map, 64); } tl_pool[ALL_NODES];
80 77
78 struct csr_control csr;
79};
81 80
82enum devctl_cmd { 81enum devctl_cmd {
83 /* Host is requested to reset its bus and cancel all outstanding async 82 /* Host is requested to reset its bus and cancel all outstanding async
@@ -112,7 +111,7 @@ enum devctl_cmd {
112 111
113enum isoctl_cmd { 112enum isoctl_cmd {
114 /* rawiso API - see iso.h for the meanings of these commands 113 /* rawiso API - see iso.h for the meanings of these commands
115 (they correspond exactly to the hpsb_iso_* API functions) 114 * (they correspond exactly to the hpsb_iso_* API functions)
116 * INIT = allocate resources 115 * INIT = allocate resources
117 * START = begin transmission/reception 116 * START = begin transmission/reception
118 * STOP = halt transmission/reception 117 * STOP = halt transmission/reception
@@ -160,7 +159,8 @@ struct hpsb_host_driver {
160 /* The hardware driver may optionally support a function that is used 159 /* The hardware driver may optionally support a function that is used
161 * to set the hardware ConfigROM if the hardware supports handling 160 * to set the hardware ConfigROM if the hardware supports handling
162 * reads to the ConfigROM on its own. */ 161 * reads to the ConfigROM on its own. */
163 void (*set_hw_config_rom) (struct hpsb_host *host, quadlet_t *config_rom); 162 void (*set_hw_config_rom)(struct hpsb_host *host,
163 quadlet_t *config_rom);
164 164
165 /* This function shall implement packet transmission based on 165 /* This function shall implement packet transmission based on
166 * packet->type. It shall CRC both parts of the packet (unless 166 * packet->type. It shall CRC both parts of the packet (unless
@@ -170,20 +170,21 @@ struct hpsb_host_driver {
170 * called. Return 0 on success, negative errno on failure. 170 * called. Return 0 on success, negative errno on failure.
171 * NOTE: The function must be callable in interrupt context. 171 * NOTE: The function must be callable in interrupt context.
172 */ 172 */
173 int (*transmit_packet) (struct hpsb_host *host, 173 int (*transmit_packet)(struct hpsb_host *host,
174 struct hpsb_packet *packet); 174 struct hpsb_packet *packet);
175 175
176 /* This function requests miscellanous services from the driver, see 176 /* This function requests miscellanous services from the driver, see
177 * above for command codes and expected actions. Return -1 for unknown 177 * above for command codes and expected actions. Return -1 for unknown
178 * command, though that should never happen. 178 * command, though that should never happen.
179 */ 179 */
180 int (*devctl) (struct hpsb_host *host, enum devctl_cmd command, int arg); 180 int (*devctl)(struct hpsb_host *host, enum devctl_cmd command, int arg);
181 181
182 /* ISO transmission/reception functions. Return 0 on success, -1 182 /* ISO transmission/reception functions. Return 0 on success, -1
183 * (or -EXXX errno code) on failure. If the low-level driver does not 183 * (or -EXXX errno code) on failure. If the low-level driver does not
184 * support the new ISO API, set isoctl to NULL. 184 * support the new ISO API, set isoctl to NULL.
185 */ 185 */
186 int (*isoctl) (struct hpsb_iso *iso, enum isoctl_cmd command, unsigned long arg); 186 int (*isoctl)(struct hpsb_iso *iso, enum isoctl_cmd command,
187 unsigned long arg);
187 188
188 /* This function is mainly to redirect local CSR reads/locks to the iso 189 /* This function is mainly to redirect local CSR reads/locks to the iso
189 * management registers (bus manager id, bandwidth available, channels 190 * management registers (bus manager id, bandwidth available, channels
@@ -196,19 +197,11 @@ struct hpsb_host_driver {
196 quadlet_t data, quadlet_t compare); 197 quadlet_t data, quadlet_t compare);
197}; 198};
198 199
199
200struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra, 200struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra,
201 struct device *dev); 201 struct device *dev);
202int hpsb_add_host(struct hpsb_host *host); 202int hpsb_add_host(struct hpsb_host *host);
203void hpsb_remove_host(struct hpsb_host *h); 203void hpsb_remove_host(struct hpsb_host *h);
204 204
205/* The following 2 functions are deprecated and will be removed when the
206 * raw1394/libraw1394 update is complete. */
207int hpsb_update_config_rom(struct hpsb_host *host,
208 const quadlet_t *new_rom, size_t size, unsigned char rom_version);
209int hpsb_get_config_rom(struct hpsb_host *host, quadlet_t *buffer,
210 size_t buffersize, size_t *rom_size, unsigned char *rom_version);
211
212/* Updates the configuration rom image of a host. rom_version must be the 205/* Updates the configuration rom image of a host. rom_version must be the
213 * current version, otherwise it will fail with return value -1. If this 206 * current version, otherwise it will fail with return value -1. If this
214 * host does not support config-rom-update, it will return -EINVAL. 207 * host does not support config-rom-update, it will return -EINVAL.
diff --git a/drivers/ieee1394/ieee1394-ioctl.h b/drivers/ieee1394/ieee1394-ioctl.h
index 156703986348..8f207508ed1d 100644
--- a/drivers/ieee1394/ieee1394-ioctl.h
+++ b/drivers/ieee1394/ieee1394-ioctl.h
@@ -1,5 +1,7 @@
1/* Base file for all ieee1394 ioctl's. Linux-1394 has allocated base '#' 1/*
2 * with a range of 0x00-0x3f. */ 2 * Base file for all ieee1394 ioctl's.
3 * Linux-1394 has allocated base '#' with a range of 0x00-0x3f.
4 */
3 5
4#ifndef __IEEE1394_IOCTL_H 6#ifndef __IEEE1394_IOCTL_H
5#define __IEEE1394_IOCTL_H 7#define __IEEE1394_IOCTL_H
@@ -96,8 +98,7 @@
96 _IOW ('#', 0x27, struct raw1394_iso_packets) 98 _IOW ('#', 0x27, struct raw1394_iso_packets)
97#define RAW1394_IOC_ISO_XMIT_SYNC \ 99#define RAW1394_IOC_ISO_XMIT_SYNC \
98 _IO ('#', 0x28) 100 _IO ('#', 0x28)
99#define RAW1394_IOC_ISO_RECV_FLUSH \ 101#define RAW1394_IOC_ISO_RECV_FLUSH \
100 _IO ('#', 0x29) 102 _IO ('#', 0x29)
101 103
102
103#endif /* __IEEE1394_IOCTL_H */ 104#endif /* __IEEE1394_IOCTL_H */
diff --git a/drivers/ieee1394/ieee1394.h b/drivers/ieee1394/ieee1394.h
index 936d776de00a..40492074c013 100644
--- a/drivers/ieee1394/ieee1394.h
+++ b/drivers/ieee1394/ieee1394.h
@@ -5,77 +5,78 @@
5#ifndef _IEEE1394_IEEE1394_H 5#ifndef _IEEE1394_IEEE1394_H
6#define _IEEE1394_IEEE1394_H 6#define _IEEE1394_IEEE1394_H
7 7
8#define TCODE_WRITEQ 0x0 8#define TCODE_WRITEQ 0x0
9#define TCODE_WRITEB 0x1 9#define TCODE_WRITEB 0x1
10#define TCODE_WRITE_RESPONSE 0x2 10#define TCODE_WRITE_RESPONSE 0x2
11#define TCODE_READQ 0x4 11#define TCODE_READQ 0x4
12#define TCODE_READB 0x5 12#define TCODE_READB 0x5
13#define TCODE_READQ_RESPONSE 0x6 13#define TCODE_READQ_RESPONSE 0x6
14#define TCODE_READB_RESPONSE 0x7 14#define TCODE_READB_RESPONSE 0x7
15#define TCODE_CYCLE_START 0x8 15#define TCODE_CYCLE_START 0x8
16#define TCODE_LOCK_REQUEST 0x9 16#define TCODE_LOCK_REQUEST 0x9
17#define TCODE_ISO_DATA 0xa 17#define TCODE_ISO_DATA 0xa
18#define TCODE_STREAM_DATA 0xa 18#define TCODE_STREAM_DATA 0xa
19#define TCODE_LOCK_RESPONSE 0xb 19#define TCODE_LOCK_RESPONSE 0xb
20 20
21#define RCODE_COMPLETE 0x0 21#define RCODE_COMPLETE 0x0
22#define RCODE_CONFLICT_ERROR 0x4 22#define RCODE_CONFLICT_ERROR 0x4
23#define RCODE_DATA_ERROR 0x5 23#define RCODE_DATA_ERROR 0x5
24#define RCODE_TYPE_ERROR 0x6 24#define RCODE_TYPE_ERROR 0x6
25#define RCODE_ADDRESS_ERROR 0x7 25#define RCODE_ADDRESS_ERROR 0x7
26 26
27#define EXTCODE_MASK_SWAP 0x1 27#define EXTCODE_MASK_SWAP 0x1
28#define EXTCODE_COMPARE_SWAP 0x2 28#define EXTCODE_COMPARE_SWAP 0x2
29#define EXTCODE_FETCH_ADD 0x3 29#define EXTCODE_FETCH_ADD 0x3
30#define EXTCODE_LITTLE_ADD 0x4 30#define EXTCODE_LITTLE_ADD 0x4
31#define EXTCODE_BOUNDED_ADD 0x5 31#define EXTCODE_BOUNDED_ADD 0x5
32#define EXTCODE_WRAP_ADD 0x6 32#define EXTCODE_WRAP_ADD 0x6
33 33
34#define ACK_COMPLETE 0x1 34#define ACK_COMPLETE 0x1
35#define ACK_PENDING 0x2 35#define ACK_PENDING 0x2
36#define ACK_BUSY_X 0x4 36#define ACK_BUSY_X 0x4
37#define ACK_BUSY_A 0x5 37#define ACK_BUSY_A 0x5
38#define ACK_BUSY_B 0x6 38#define ACK_BUSY_B 0x6
39#define ACK_TARDY 0xb 39#define ACK_TARDY 0xb
40#define ACK_CONFLICT_ERROR 0xc 40#define ACK_CONFLICT_ERROR 0xc
41#define ACK_DATA_ERROR 0xd 41#define ACK_DATA_ERROR 0xd
42#define ACK_TYPE_ERROR 0xe 42#define ACK_TYPE_ERROR 0xe
43#define ACK_ADDRESS_ERROR 0xf 43#define ACK_ADDRESS_ERROR 0xf
44 44
45/* Non-standard "ACK codes" for internal use */ 45/* Non-standard "ACK codes" for internal use */
46#define ACKX_NONE (-1) 46#define ACKX_NONE (-1)
47#define ACKX_SEND_ERROR (-2) 47#define ACKX_SEND_ERROR (-2)
48#define ACKX_ABORTED (-3) 48#define ACKX_ABORTED (-3)
49#define ACKX_TIMEOUT (-4) 49#define ACKX_TIMEOUT (-4)
50 50
51 51#define IEEE1394_SPEED_100 0x00
52#define IEEE1394_SPEED_100 0x00 52#define IEEE1394_SPEED_200 0x01
53#define IEEE1394_SPEED_200 0x01 53#define IEEE1394_SPEED_400 0x02
54#define IEEE1394_SPEED_400 0x02 54#define IEEE1394_SPEED_800 0x03
55#define IEEE1394_SPEED_800 0x03 55#define IEEE1394_SPEED_1600 0x04
56#define IEEE1394_SPEED_1600 0x04 56#define IEEE1394_SPEED_3200 0x05
57#define IEEE1394_SPEED_3200 0x05 57
58/* The current highest tested speed supported by the subsystem */ 58/* The current highest tested speed supported by the subsystem */
59#define IEEE1394_SPEED_MAX IEEE1394_SPEED_800 59#define IEEE1394_SPEED_MAX IEEE1394_SPEED_800
60 60
61/* Maps speed values above to a string representation */ 61/* Maps speed values above to a string representation */
62extern const char *hpsb_speedto_str[]; 62extern const char *hpsb_speedto_str[];
63 63
64
65/* 1394a cable PHY packets */ 64/* 1394a cable PHY packets */
66#define SELFID_PWRCL_NO_POWER 0x0 65#define SELFID_PWRCL_NO_POWER 0x0
67#define SELFID_PWRCL_PROVIDE_15W 0x1 66#define SELFID_PWRCL_PROVIDE_15W 0x1
68#define SELFID_PWRCL_PROVIDE_30W 0x2 67#define SELFID_PWRCL_PROVIDE_30W 0x2
69#define SELFID_PWRCL_PROVIDE_45W 0x3 68#define SELFID_PWRCL_PROVIDE_45W 0x3
70#define SELFID_PWRCL_USE_1W 0x4 69#define SELFID_PWRCL_USE_1W 0x4
71#define SELFID_PWRCL_USE_3W 0x5 70#define SELFID_PWRCL_USE_3W 0x5
72#define SELFID_PWRCL_USE_6W 0x6 71#define SELFID_PWRCL_USE_6W 0x6
73#define SELFID_PWRCL_USE_10W 0x7 72#define SELFID_PWRCL_USE_10W 0x7
74 73
75#define SELFID_PORT_CHILD 0x3 74#define SELFID_PORT_CHILD 0x3
76#define SELFID_PORT_PARENT 0x2 75#define SELFID_PORT_PARENT 0x2
77#define SELFID_PORT_NCONN 0x1 76#define SELFID_PORT_NCONN 0x1
78#define SELFID_PORT_NONE 0x0 77#define SELFID_PORT_NONE 0x0
78
79#define SELFID_SPEED_UNKNOWN 0x3 /* 1394b PHY */
79 80
80#define PHYPACKET_LINKON 0x40000000 81#define PHYPACKET_LINKON 0x40000000
81#define PHYPACKET_PHYCONFIG_R 0x00800000 82#define PHYPACKET_PHYCONFIG_R 0x00800000
@@ -91,76 +92,76 @@ extern const char *hpsb_speedto_str[];
91 92
92#define EXTPHYPACKET_TYPEMASK 0xC0FC0000 93#define EXTPHYPACKET_TYPEMASK 0xC0FC0000
93 94
94#define PHYPACKET_PORT_SHIFT 24 95#define PHYPACKET_PORT_SHIFT 24
95#define PHYPACKET_GAPCOUNT_SHIFT 16 96#define PHYPACKET_GAPCOUNT_SHIFT 16
96 97
97/* 1394a PHY register map bitmasks */ 98/* 1394a PHY register map bitmasks */
98#define PHY_00_PHYSICAL_ID 0xFC 99#define PHY_00_PHYSICAL_ID 0xFC
99#define PHY_00_R 0x02 /* Root */ 100#define PHY_00_R 0x02 /* Root */
100#define PHY_00_PS 0x01 /* Power Status*/ 101#define PHY_00_PS 0x01 /* Power Status*/
101#define PHY_01_RHB 0x80 /* Root Hold-Off */ 102#define PHY_01_RHB 0x80 /* Root Hold-Off */
102#define PHY_01_IBR 0x80 /* Initiate Bus Reset */ 103#define PHY_01_IBR 0x80 /* Initiate Bus Reset */
103#define PHY_01_GAP_COUNT 0x3F 104#define PHY_01_GAP_COUNT 0x3F
104#define PHY_02_EXTENDED 0xE0 /* 0x7 for 1394a-compliant PHY */ 105#define PHY_02_EXTENDED 0xE0 /* 0x7 for 1394a-compliant PHY */
105#define PHY_02_TOTAL_PORTS 0x1F 106#define PHY_02_TOTAL_PORTS 0x1F
106#define PHY_03_MAX_SPEED 0xE0 107#define PHY_03_MAX_SPEED 0xE0
107#define PHY_03_DELAY 0x0F 108#define PHY_03_DELAY 0x0F
108#define PHY_04_LCTRL 0x80 /* Link Active Report Control */ 109#define PHY_04_LCTRL 0x80 /* Link Active Report Control */
109#define PHY_04_CONTENDER 0x40 110#define PHY_04_CONTENDER 0x40
110#define PHY_04_JITTER 0x38 111#define PHY_04_JITTER 0x38
111#define PHY_04_PWR_CLASS 0x07 /* Power Class */ 112#define PHY_04_PWR_CLASS 0x07 /* Power Class */
112#define PHY_05_WATCHDOG 0x80 113#define PHY_05_WATCHDOG 0x80
113#define PHY_05_ISBR 0x40 /* Initiate Short Bus Reset */ 114#define PHY_05_ISBR 0x40 /* Initiate Short Bus Reset */
114#define PHY_05_LOOP 0x20 /* Loop Detect */ 115#define PHY_05_LOOP 0x20 /* Loop Detect */
115#define PHY_05_PWR_FAIL 0x10 /* Cable Power Failure Detect */ 116#define PHY_05_PWR_FAIL 0x10 /* Cable Power Failure Detect */
116#define PHY_05_TIMEOUT 0x08 /* Arbitration State Machine Timeout */ 117#define PHY_05_TIMEOUT 0x08 /* Arbitration State Machine Timeout */
117#define PHY_05_PORT_EVENT 0x04 /* Port Event Detect */ 118#define PHY_05_PORT_EVENT 0x04 /* Port Event Detect */
118#define PHY_05_ENAB_ACCEL 0x02 /* Enable Arbitration Acceleration */ 119#define PHY_05_ENAB_ACCEL 0x02 /* Enable Arbitration Acceleration */
119#define PHY_05_ENAB_MULTI 0x01 /* Ena. Multispeed Packet Concatenation */ 120#define PHY_05_ENAB_MULTI 0x01 /* Ena. Multispeed Packet Concatenation */
120 121
121#include <asm/byteorder.h> 122#include <asm/byteorder.h>
122 123
123#ifdef __BIG_ENDIAN_BITFIELD 124#ifdef __BIG_ENDIAN_BITFIELD
124 125
125struct selfid { 126struct selfid {
126 u32 packet_identifier:2; /* always binary 10 */ 127 u32 packet_identifier:2; /* always binary 10 */
127 u32 phy_id:6; 128 u32 phy_id:6;
128 /* byte */ 129 /* byte */
129 u32 extended:1; /* if true is struct ext_selfid */ 130 u32 extended:1; /* if true is struct ext_selfid */
130 u32 link_active:1; 131 u32 link_active:1;
131 u32 gap_count:6; 132 u32 gap_count:6;
132 /* byte */ 133 /* byte */
133 u32 speed:2; 134 u32 speed:2;
134 u32 phy_delay:2; 135 u32 phy_delay:2;
135 u32 contender:1; 136 u32 contender:1;
136 u32 power_class:3; 137 u32 power_class:3;
137 /* byte */ 138 /* byte */
138 u32 port0:2; 139 u32 port0:2;
139 u32 port1:2; 140 u32 port1:2;
140 u32 port2:2; 141 u32 port2:2;
141 u32 initiated_reset:1; 142 u32 initiated_reset:1;
142 u32 more_packets:1; 143 u32 more_packets:1;
143} __attribute__((packed)); 144} __attribute__((packed));
144 145
145struct ext_selfid { 146struct ext_selfid {
146 u32 packet_identifier:2; /* always binary 10 */ 147 u32 packet_identifier:2; /* always binary 10 */
147 u32 phy_id:6; 148 u32 phy_id:6;
148 /* byte */ 149 /* byte */
149 u32 extended:1; /* if false is struct selfid */ 150 u32 extended:1; /* if false is struct selfid */
150 u32 seq_nr:3; 151 u32 seq_nr:3;
151 u32 reserved:2; 152 u32 reserved:2;
152 u32 porta:2; 153 u32 porta:2;
153 /* byte */ 154 /* byte */
154 u32 portb:2; 155 u32 portb:2;
155 u32 portc:2; 156 u32 portc:2;
156 u32 portd:2; 157 u32 portd:2;
157 u32 porte:2; 158 u32 porte:2;
158 /* byte */ 159 /* byte */
159 u32 portf:2; 160 u32 portf:2;
160 u32 portg:2; 161 u32 portg:2;
161 u32 porth:2; 162 u32 porth:2;
162 u32 reserved2:1; 163 u32 reserved2:1;
163 u32 more_packets:1; 164 u32 more_packets:1;
164} __attribute__((packed)); 165} __attribute__((packed));
165 166
166#elif defined __LITTLE_ENDIAN_BITFIELD /* __BIG_ENDIAN_BITFIELD */ 167#elif defined __LITTLE_ENDIAN_BITFIELD /* __BIG_ENDIAN_BITFIELD */
@@ -171,49 +172,48 @@ struct ext_selfid {
171 */ 172 */
172 173
173struct selfid { 174struct selfid {
174 u32 phy_id:6; 175 u32 phy_id:6;
175 u32 packet_identifier:2; /* always binary 10 */ 176 u32 packet_identifier:2; /* always binary 10 */
176 /* byte */ 177 /* byte */
177 u32 gap_count:6; 178 u32 gap_count:6;
178 u32 link_active:1; 179 u32 link_active:1;
179 u32 extended:1; /* if true is struct ext_selfid */ 180 u32 extended:1; /* if true is struct ext_selfid */
180 /* byte */ 181 /* byte */
181 u32 power_class:3; 182 u32 power_class:3;
182 u32 contender:1; 183 u32 contender:1;
183 u32 phy_delay:2; 184 u32 phy_delay:2;
184 u32 speed:2; 185 u32 speed:2;
185 /* byte */ 186 /* byte */
186 u32 more_packets:1; 187 u32 more_packets:1;
187 u32 initiated_reset:1; 188 u32 initiated_reset:1;
188 u32 port2:2; 189 u32 port2:2;
189 u32 port1:2; 190 u32 port1:2;
190 u32 port0:2; 191 u32 port0:2;
191} __attribute__((packed)); 192} __attribute__((packed));
192 193
193struct ext_selfid { 194struct ext_selfid {
194 u32 phy_id:6; 195 u32 phy_id:6;
195 u32 packet_identifier:2; /* always binary 10 */ 196 u32 packet_identifier:2; /* always binary 10 */
196 /* byte */ 197 /* byte */
197 u32 porta:2; 198 u32 porta:2;
198 u32 reserved:2; 199 u32 reserved:2;
199 u32 seq_nr:3; 200 u32 seq_nr:3;
200 u32 extended:1; /* if false is struct selfid */ 201 u32 extended:1; /* if false is struct selfid */
201 /* byte */ 202 /* byte */
202 u32 porte:2; 203 u32 porte:2;
203 u32 portd:2; 204 u32 portd:2;
204 u32 portc:2; 205 u32 portc:2;
205 u32 portb:2; 206 u32 portb:2;
206 /* byte */ 207 /* byte */
207 u32 more_packets:1; 208 u32 more_packets:1;
208 u32 reserved2:1; 209 u32 reserved2:1;
209 u32 porth:2; 210 u32 porth:2;
210 u32 portg:2; 211 u32 portg:2;
211 u32 portf:2; 212 u32 portf:2;
212} __attribute__((packed)); 213} __attribute__((packed));
213 214
214#else 215#else
215#error What? PDP endian? 216#error What? PDP endian?
216#endif /* __BIG_ENDIAN_BITFIELD */ 217#endif /* __BIG_ENDIAN_BITFIELD */
217 218
218
219#endif /* _IEEE1394_IEEE1394_H */ 219#endif /* _IEEE1394_IEEE1394_H */
diff --git a/drivers/ieee1394/ieee1394_core.c b/drivers/ieee1394/ieee1394_core.c
index f43739c5cab2..5fccf9f7a1d2 100644
--- a/drivers/ieee1394/ieee1394_core.c
+++ b/drivers/ieee1394/ieee1394_core.c
@@ -35,7 +35,6 @@
35#include <linux/kthread.h> 35#include <linux/kthread.h>
36 36
37#include <asm/byteorder.h> 37#include <asm/byteorder.h>
38#include <asm/semaphore.h>
39 38
40#include "ieee1394_types.h" 39#include "ieee1394_types.h"
41#include "ieee1394.h" 40#include "ieee1394.h"
@@ -86,7 +85,7 @@ static void dump_packet(const char *text, quadlet_t *data, int size, int speed)
86 printk("\n"); 85 printk("\n");
87} 86}
88#else 87#else
89#define dump_packet(a,b,c,d) 88#define dump_packet(a,b,c,d) do {} while (0)
90#endif 89#endif
91 90
92static void abort_requests(struct hpsb_host *host); 91static void abort_requests(struct hpsb_host *host);
@@ -355,10 +354,12 @@ static void build_speed_map(struct hpsb_host *host, int nodecount)
355 } 354 }
356 } 355 }
357 356
357#if SELFID_SPEED_UNKNOWN != IEEE1394_SPEED_MAX
358 /* assume maximum speed for 1394b PHYs, nodemgr will correct it */ 358 /* assume maximum speed for 1394b PHYs, nodemgr will correct it */
359 for (n = 0; n < nodecount; n++) 359 for (n = 0; n < nodecount; n++)
360 if (speedcap[n] == 3) 360 if (speedcap[n] == SELFID_SPEED_UNKNOWN)
361 speedcap[n] = IEEE1394_SPEED_MAX; 361 speedcap[n] = IEEE1394_SPEED_MAX;
362#endif
362} 363}
363 364
364 365
@@ -1169,7 +1170,7 @@ static void __exit ieee1394_cleanup(void)
1169 unregister_chrdev_region(IEEE1394_CORE_DEV, 256); 1170 unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
1170} 1171}
1171 1172
1172module_init(ieee1394_init); 1173fs_initcall(ieee1394_init); /* same as ohci1394 */
1173module_exit(ieee1394_cleanup); 1174module_exit(ieee1394_cleanup);
1174 1175
1175/* Exported symbols */ 1176/* Exported symbols */
diff --git a/drivers/ieee1394/ieee1394_core.h b/drivers/ieee1394/ieee1394_core.h
index 0ecbf335c64f..af4a78a8ef3b 100644
--- a/drivers/ieee1394/ieee1394_core.h
+++ b/drivers/ieee1394/ieee1394_core.h
@@ -1,12 +1,15 @@
1
2#ifndef _IEEE1394_CORE_H 1#ifndef _IEEE1394_CORE_H
3#define _IEEE1394_CORE_H 2#define _IEEE1394_CORE_H
4 3
5#include <linux/slab.h> 4#include <linux/device.h>
5#include <linux/fs.h>
6#include <linux/list.h>
7#include <linux/skbuff.h>
8#include <linux/types.h>
6#include <asm/atomic.h> 9#include <asm/atomic.h>
7#include <asm/semaphore.h>
8#include "hosts.h"
9 10
11#include "hosts.h"
12#include "ieee1394_types.h"
10 13
11struct hpsb_packet { 14struct hpsb_packet {
12 /* This struct is basically read-only for hosts with the exception of 15 /* This struct is basically read-only for hosts with the exception of
@@ -58,7 +61,6 @@ struct hpsb_packet {
58 size_t header_size; 61 size_t header_size;
59 size_t data_size; 62 size_t data_size;
60 63
61
62 struct hpsb_host *host; 64 struct hpsb_host *host;
63 unsigned int generation; 65 unsigned int generation;
64 66
@@ -80,7 +82,7 @@ struct hpsb_packet {
80 82
81/* Set a task for when a packet completes */ 83/* Set a task for when a packet completes */
82void hpsb_set_packet_complete_task(struct hpsb_packet *packet, 84void hpsb_set_packet_complete_task(struct hpsb_packet *packet,
83 void (*routine)(void *), void *data); 85 void (*routine)(void *), void *data);
84 86
85static inline struct hpsb_packet *driver_packet(struct list_head *l) 87static inline struct hpsb_packet *driver_packet(struct list_head *l)
86{ 88{
@@ -92,7 +94,6 @@ void abort_timedouts(unsigned long __opaque);
92struct hpsb_packet *hpsb_alloc_packet(size_t data_size); 94struct hpsb_packet *hpsb_alloc_packet(size_t data_size);
93void hpsb_free_packet(struct hpsb_packet *packet); 95void hpsb_free_packet(struct hpsb_packet *packet);
94 96
95
96/* 97/*
97 * Generation counter for the complete 1394 subsystem. Generation gets 98 * Generation counter for the complete 1394 subsystem. Generation gets
98 * incremented on every change in the subsystem (e.g. bus reset). 99 * incremented on every change in the subsystem (e.g. bus reset).
@@ -204,10 +205,14 @@ void hpsb_packet_received(struct hpsb_host *host, quadlet_t *data, size_t size,
204#define IEEE1394_MINOR_BLOCK_EXPERIMENTAL 15 205#define IEEE1394_MINOR_BLOCK_EXPERIMENTAL 15
205 206
206#define IEEE1394_CORE_DEV MKDEV(IEEE1394_MAJOR, 0) 207#define IEEE1394_CORE_DEV MKDEV(IEEE1394_MAJOR, 0)
207#define IEEE1394_RAW1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16) 208#define IEEE1394_RAW1394_DEV MKDEV(IEEE1394_MAJOR, \
208#define IEEE1394_VIDEO1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_VIDEO1394 * 16) 209 IEEE1394_MINOR_BLOCK_RAW1394 * 16)
209#define IEEE1394_DV1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16) 210#define IEEE1394_VIDEO1394_DEV MKDEV(IEEE1394_MAJOR, \
210#define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16) 211 IEEE1394_MINOR_BLOCK_VIDEO1394 * 16)
212#define IEEE1394_DV1394_DEV MKDEV(IEEE1394_MAJOR, \
213 IEEE1394_MINOR_BLOCK_DV1394 * 16)
214#define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, \
215 IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16)
211 216
212/* return the index (within a minor number block) of a file */ 217/* return the index (within a minor number block) of a file */
213static inline unsigned char ieee1394_file_to_instance(struct file *file) 218static inline unsigned char ieee1394_file_to_instance(struct file *file)
@@ -223,4 +228,3 @@ extern struct class hpsb_host_class;
223extern struct class *hpsb_protocol_class; 228extern struct class *hpsb_protocol_class;
224 229
225#endif /* _IEEE1394_CORE_H */ 230#endif /* _IEEE1394_CORE_H */
226
diff --git a/drivers/ieee1394/ieee1394_hotplug.h b/drivers/ieee1394/ieee1394_hotplug.h
index 5be70d31b007..dd5500ed8322 100644
--- a/drivers/ieee1394/ieee1394_hotplug.h
+++ b/drivers/ieee1394/ieee1394_hotplug.h
@@ -1,33 +1,19 @@
1#ifndef _IEEE1394_HOTPLUG_H 1#ifndef _IEEE1394_HOTPLUG_H
2#define _IEEE1394_HOTPLUG_H 2#define _IEEE1394_HOTPLUG_H
3 3
4#include <linux/kernel.h>
5#include <linux/types.h>
6#include <linux/mod_devicetable.h>
7
8/* Unit spec id and sw version entry for some protocols */ 4/* Unit spec id and sw version entry for some protocols */
9#define AVC_UNIT_SPEC_ID_ENTRY 0x0000A02D 5#define AVC_UNIT_SPEC_ID_ENTRY 0x0000A02D
10#define AVC_SW_VERSION_ENTRY 0x00010001 6#define AVC_SW_VERSION_ENTRY 0x00010001
11#define CAMERA_UNIT_SPEC_ID_ENTRY 0x0000A02D 7#define CAMERA_UNIT_SPEC_ID_ENTRY 0x0000A02D
12#define CAMERA_SW_VERSION_ENTRY 0x00000100 8#define CAMERA_SW_VERSION_ENTRY 0x00000100
13 9
14/* Check to make sure this all isn't already defined */ 10/* /include/linux/mod_devicetable.h defines:
15#ifndef IEEE1394_MATCH_VENDOR_ID 11 * IEEE1394_MATCH_VENDOR_ID
16 12 * IEEE1394_MATCH_MODEL_ID
17#define IEEE1394_MATCH_VENDOR_ID 0x0001 13 * IEEE1394_MATCH_SPECIFIER_ID
18#define IEEE1394_MATCH_MODEL_ID 0x0002 14 * IEEE1394_MATCH_VERSION
19#define IEEE1394_MATCH_SPECIFIER_ID 0x0004 15 * struct ieee1394_device_id
20#define IEEE1394_MATCH_VERSION 0x0008 16 */
21 17#include <linux/mod_devicetable.h>
22struct ieee1394_device_id {
23 u32 match_flags;
24 u32 vendor_id;
25 u32 model_id;
26 u32 specifier_id;
27 u32 version;
28 void *driver_data;
29};
30
31#endif
32 18
33#endif /* _IEEE1394_HOTPLUG_H */ 19#endif /* _IEEE1394_HOTPLUG_H */
diff --git a/drivers/ieee1394/ieee1394_transactions.c b/drivers/ieee1394/ieee1394_transactions.c
index a114b91d606d..0833fc9f50c4 100644
--- a/drivers/ieee1394/ieee1394_transactions.c
+++ b/drivers/ieee1394/ieee1394_transactions.c
@@ -9,19 +9,17 @@
9 * directory of the kernel sources for details. 9 * directory of the kernel sources for details.
10 */ 10 */
11 11
12#include <linux/sched.h>
13#include <linux/bitops.h> 12#include <linux/bitops.h>
14#include <linux/smp_lock.h> 13#include <linux/spinlock.h>
15#include <linux/interrupt.h> 14#include <linux/wait.h>
16 15
16#include <asm/bug.h>
17#include <asm/errno.h> 17#include <asm/errno.h>
18 18
19#include "ieee1394.h" 19#include "ieee1394.h"
20#include "ieee1394_types.h" 20#include "ieee1394_types.h"
21#include "hosts.h" 21#include "hosts.h"
22#include "ieee1394_core.h" 22#include "ieee1394_core.h"
23#include "highlevel.h"
24#include "nodemgr.h"
25#include "ieee1394_transactions.h" 23#include "ieee1394_transactions.h"
26 24
27#define PREP_ASYNC_HEAD_ADDRESS(tc) \ 25#define PREP_ASYNC_HEAD_ADDRESS(tc) \
@@ -31,6 +29,13 @@
31 packet->header[1] = (packet->host->node_id << 16) | (addr >> 32); \ 29 packet->header[1] = (packet->host->node_id << 16) | (addr >> 32); \
32 packet->header[2] = addr & 0xffffffff 30 packet->header[2] = addr & 0xffffffff
33 31
32#ifndef HPSB_DEBUG_TLABELS
33static
34#endif
35spinlock_t hpsb_tlabel_lock = SPIN_LOCK_UNLOCKED;
36
37static DECLARE_WAIT_QUEUE_HEAD(tlabel_wq);
38
34static void fill_async_readquad(struct hpsb_packet *packet, u64 addr) 39static void fill_async_readquad(struct hpsb_packet *packet, u64 addr)
35{ 40{
36 PREP_ASYNC_HEAD_ADDRESS(TCODE_READQ); 41 PREP_ASYNC_HEAD_ADDRESS(TCODE_READQ);
@@ -114,9 +119,41 @@ static void fill_async_stream_packet(struct hpsb_packet *packet, int length,
114 packet->tcode = TCODE_ISO_DATA; 119 packet->tcode = TCODE_ISO_DATA;
115} 120}
116 121
122/* same as hpsb_get_tlabel, except that it returns immediately */
123static int hpsb_get_tlabel_atomic(struct hpsb_packet *packet)
124{
125 unsigned long flags, *tp;
126 u8 *next;
127 int tlabel, n = NODEID_TO_NODE(packet->node_id);
128
129 /* Broadcast transactions are complete once the request has been sent.
130 * Use the same transaction label for all broadcast transactions. */
131 if (unlikely(n == ALL_NODES)) {
132 packet->tlabel = 0;
133 return 0;
134 }
135 tp = packet->host->tl_pool[n].map;
136 next = &packet->host->next_tl[n];
137
138 spin_lock_irqsave(&hpsb_tlabel_lock, flags);
139 tlabel = find_next_zero_bit(tp, 64, *next);
140 if (tlabel > 63)
141 tlabel = find_first_zero_bit(tp, 64);
142 if (tlabel > 63) {
143 spin_unlock_irqrestore(&hpsb_tlabel_lock, flags);
144 return -EAGAIN;
145 }
146 __set_bit(tlabel, tp);
147 *next = (tlabel + 1) & 63;
148 spin_unlock_irqrestore(&hpsb_tlabel_lock, flags);
149
150 packet->tlabel = tlabel;
151 return 0;
152}
153
117/** 154/**
118 * hpsb_get_tlabel - allocate a transaction label 155 * hpsb_get_tlabel - allocate a transaction label
119 * @packet: the packet who's tlabel/tpool we set 156 * @packet: the packet whose tlabel and tl_pool we set
120 * 157 *
121 * Every asynchronous transaction on the 1394 bus needs a transaction 158 * Every asynchronous transaction on the 1394 bus needs a transaction
122 * label to match the response to the request. This label has to be 159 * label to match the response to the request. This label has to be
@@ -130,42 +167,25 @@ static void fill_async_stream_packet(struct hpsb_packet *packet, int length,
130 * Return value: Zero on success, otherwise non-zero. A non-zero return 167 * Return value: Zero on success, otherwise non-zero. A non-zero return
131 * generally means there are no available tlabels. If this is called out 168 * generally means there are no available tlabels. If this is called out
132 * of interrupt or atomic context, then it will sleep until can return a 169 * of interrupt or atomic context, then it will sleep until can return a
133 * tlabel. 170 * tlabel or a signal is received.
134 */ 171 */
135int hpsb_get_tlabel(struct hpsb_packet *packet) 172int hpsb_get_tlabel(struct hpsb_packet *packet)
136{ 173{
137 unsigned long flags; 174 if (irqs_disabled() || in_atomic())
138 struct hpsb_tlabel_pool *tp; 175 return hpsb_get_tlabel_atomic(packet);
139 int n = NODEID_TO_NODE(packet->node_id); 176
140 177 /* NB: The macro wait_event_interruptible() is called with a condition
141 if (unlikely(n == ALL_NODES)) 178 * argument with side effect. This is only possible because the side
142 return 0; 179 * effect does not occur until the condition became true, and
143 tp = &packet->host->tpool[n]; 180 * wait_event_interruptible() won't evaluate the condition again after
144 181 * that. */
145 if (irqs_disabled() || in_atomic()) { 182 return wait_event_interruptible(tlabel_wq,
146 if (down_trylock(&tp->count)) 183 !hpsb_get_tlabel_atomic(packet));
147 return 1;
148 } else {
149 down(&tp->count);
150 }
151
152 spin_lock_irqsave(&tp->lock, flags);
153
154 packet->tlabel = find_next_zero_bit(tp->pool, 64, tp->next);
155 if (packet->tlabel > 63)
156 packet->tlabel = find_first_zero_bit(tp->pool, 64);
157 tp->next = (packet->tlabel + 1) % 64;
158 /* Should _never_ happen */
159 BUG_ON(test_and_set_bit(packet->tlabel, tp->pool));
160 tp->allocations++;
161 spin_unlock_irqrestore(&tp->lock, flags);
162
163 return 0;
164} 184}
165 185
166/** 186/**
167 * hpsb_free_tlabel - free an allocated transaction label 187 * hpsb_free_tlabel - free an allocated transaction label
168 * @packet: packet whos tlabel/tpool needs to be cleared 188 * @packet: packet whose tlabel and tl_pool needs to be cleared
169 * 189 *
170 * Frees the transaction label allocated with hpsb_get_tlabel(). The 190 * Frees the transaction label allocated with hpsb_get_tlabel(). The
171 * tlabel has to be freed after the transaction is complete (i.e. response 191 * tlabel has to be freed after the transaction is complete (i.e. response
@@ -176,21 +196,20 @@ int hpsb_get_tlabel(struct hpsb_packet *packet)
176 */ 196 */
177void hpsb_free_tlabel(struct hpsb_packet *packet) 197void hpsb_free_tlabel(struct hpsb_packet *packet)
178{ 198{
179 unsigned long flags; 199 unsigned long flags, *tp;
180 struct hpsb_tlabel_pool *tp; 200 int tlabel, n = NODEID_TO_NODE(packet->node_id);
181 int n = NODEID_TO_NODE(packet->node_id);
182 201
183 if (unlikely(n == ALL_NODES)) 202 if (unlikely(n == ALL_NODES))
184 return; 203 return;
185 tp = &packet->host->tpool[n]; 204 tp = packet->host->tl_pool[n].map;
205 tlabel = packet->tlabel;
206 BUG_ON(tlabel > 63 || tlabel < 0);
186 207
187 BUG_ON(packet->tlabel > 63 || packet->tlabel < 0); 208 spin_lock_irqsave(&hpsb_tlabel_lock, flags);
209 BUG_ON(!__test_and_clear_bit(tlabel, tp));
210 spin_unlock_irqrestore(&hpsb_tlabel_lock, flags);
188 211
189 spin_lock_irqsave(&tp->lock, flags); 212 wake_up_interruptible(&tlabel_wq);
190 BUG_ON(!test_and_clear_bit(packet->tlabel, tp->pool));
191 spin_unlock_irqrestore(&tp->lock, flags);
192
193 up(&tp->count);
194} 213}
195 214
196int hpsb_packet_success(struct hpsb_packet *packet) 215int hpsb_packet_success(struct hpsb_packet *packet)
@@ -214,7 +233,7 @@ int hpsb_packet_success(struct hpsb_packet *packet)
214 packet->node_id); 233 packet->node_id);
215 return -EAGAIN; 234 return -EAGAIN;
216 } 235 }
217 HPSB_PANIC("reached unreachable code 1 in %s", __FUNCTION__); 236 BUG();
218 237
219 case ACK_BUSY_X: 238 case ACK_BUSY_X:
220 case ACK_BUSY_A: 239 case ACK_BUSY_A:
@@ -261,8 +280,7 @@ int hpsb_packet_success(struct hpsb_packet *packet)
261 packet->ack_code, packet->node_id, packet->tcode); 280 packet->ack_code, packet->node_id, packet->tcode);
262 return -EAGAIN; 281 return -EAGAIN;
263 } 282 }
264 283 BUG();
265 HPSB_PANIC("reached unreachable code 2 in %s", __FUNCTION__);
266} 284}
267 285
268struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node, 286struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
diff --git a/drivers/ieee1394/ieee1394_transactions.h b/drivers/ieee1394/ieee1394_transactions.h
index 45ba784fe6da..c1369c41469b 100644
--- a/drivers/ieee1394/ieee1394_transactions.h
+++ b/drivers/ieee1394/ieee1394_transactions.h
@@ -1,32 +1,32 @@
1#ifndef _IEEE1394_TRANSACTIONS_H 1#ifndef _IEEE1394_TRANSACTIONS_H
2#define _IEEE1394_TRANSACTIONS_H 2#define _IEEE1394_TRANSACTIONS_H
3 3
4#include "ieee1394_core.h" 4#include <linux/types.h>
5 5
6#include "ieee1394_types.h"
7
8struct hpsb_packet;
9struct hpsb_host;
6 10
7/*
8 * Get and free transaction labels.
9 */
10int hpsb_get_tlabel(struct hpsb_packet *packet); 11int hpsb_get_tlabel(struct hpsb_packet *packet);
11void hpsb_free_tlabel(struct hpsb_packet *packet); 12void hpsb_free_tlabel(struct hpsb_packet *packet);
12
13struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node, 13struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
14 u64 addr, size_t length); 14 u64 addr, size_t length);
15struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node, 15struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
16 u64 addr, int extcode, quadlet_t *data, 16 u64 addr, int extcode, quadlet_t *data,
17 quadlet_t arg); 17 quadlet_t arg);
18struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node, 18struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host,
19 u64 addr, int extcode, octlet_t *data, 19 nodeid_t node, u64 addr, int extcode,
20 octlet_t arg); 20 octlet_t *data, octlet_t arg);
21struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, 21struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, quadlet_t data);
22 quadlet_t data) ; 22struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host, int length,
23struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host, 23 int channel, int tag, int sync);
24 int length, int channel, 24struct hpsb_packet *hpsb_make_writepacket(struct hpsb_host *host,
25 int tag, int sync); 25 nodeid_t node, u64 addr,
26struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node, 26 quadlet_t *buffer, size_t length);
27 u64 addr, quadlet_t *buffer, size_t length);
28struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer, 27struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer,
29 int length, int channel, int tag, int sync); 28 int length, int channel, int tag,
29 int sync);
30 30
31/* 31/*
32 * hpsb_packet_success - Make sense of the ack and reply codes and 32 * hpsb_packet_success - Make sense of the ack and reply codes and
@@ -40,9 +40,8 @@ struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer,
40 */ 40 */
41int hpsb_packet_success(struct hpsb_packet *packet); 41int hpsb_packet_success(struct hpsb_packet *packet);
42 42
43
44/* 43/*
45 * The generic read, write and lock functions. All recognize the local node ID 44 * The generic read and write functions. All recognize the local node ID
46 * and act accordingly. Read and write automatically use quadlet commands if 45 * and act accordingly. Read and write automatically use quadlet commands if
47 * length == 4 and and block commands otherwise (however, they do not yet 46 * length == 4 and and block commands otherwise (however, they do not yet
48 * support lengths that are not a multiple of 4). You must explicitly specifiy 47 * support lengths that are not a multiple of 4). You must explicitly specifiy
@@ -54,4 +53,8 @@ int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
54int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation, 53int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
55 u64 addr, quadlet_t *buffer, size_t length); 54 u64 addr, quadlet_t *buffer, size_t length);
56 55
56#ifdef HPSB_DEBUG_TLABELS
57extern spinlock_t hpsb_tlabel_lock;
58#endif
59
57#endif /* _IEEE1394_TRANSACTIONS_H */ 60#endif /* _IEEE1394_TRANSACTIONS_H */
diff --git a/drivers/ieee1394/ieee1394_types.h b/drivers/ieee1394/ieee1394_types.h
index 3165609ec1ec..9803aaa15be0 100644
--- a/drivers/ieee1394/ieee1394_types.h
+++ b/drivers/ieee1394/ieee1394_types.h
@@ -1,37 +1,11 @@
1
2#ifndef _IEEE1394_TYPES_H 1#ifndef _IEEE1394_TYPES_H
3#define _IEEE1394_TYPES_H 2#define _IEEE1394_TYPES_H
4 3
5#include <linux/kernel.h> 4#include <linux/kernel.h>
6#include <linux/types.h>
7#include <linux/list.h>
8#include <linux/init.h>
9#include <linux/spinlock.h>
10#include <linux/string.h> 5#include <linux/string.h>
11 6#include <linux/types.h>
12#include <asm/semaphore.h>
13#include <asm/byteorder.h> 7#include <asm/byteorder.h>
14 8
15
16/* Transaction Label handling */
17struct hpsb_tlabel_pool {
18 DECLARE_BITMAP(pool, 64);
19 spinlock_t lock;
20 u8 next;
21 u32 allocations;
22 struct semaphore count;
23};
24
25#define HPSB_TPOOL_INIT(_tp) \
26do { \
27 bitmap_zero((_tp)->pool, 64); \
28 spin_lock_init(&(_tp)->lock); \
29 (_tp)->next = 0; \
30 (_tp)->allocations = 0; \
31 sema_init(&(_tp)->count, 63); \
32} while (0)
33
34
35typedef u32 quadlet_t; 9typedef u32 quadlet_t;
36typedef u64 octlet_t; 10typedef u64 octlet_t;
37typedef u16 nodeid_t; 11typedef u16 nodeid_t;
@@ -54,46 +28,40 @@ typedef u16 arm_length_t;
54#define NODE_BUS_ARGS(__host, __nodeid) \ 28#define NODE_BUS_ARGS(__host, __nodeid) \
55 __host->id, NODEID_TO_NODE(__nodeid), NODEID_TO_BUS(__nodeid) 29 __host->id, NODEID_TO_NODE(__nodeid), NODEID_TO_BUS(__nodeid)
56 30
57#define HPSB_PRINT(level, fmt, args...) printk(level "ieee1394: " fmt "\n" , ## args) 31#define HPSB_PRINT(level, fmt, args...) \
32 printk(level "ieee1394: " fmt "\n" , ## args)
58 33
59#define HPSB_DEBUG(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args) 34#define HPSB_DEBUG(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args)
60#define HPSB_INFO(fmt, args...) HPSB_PRINT(KERN_INFO, fmt , ## args) 35#define HPSB_INFO(fmt, args...) HPSB_PRINT(KERN_INFO, fmt , ## args)
61#define HPSB_NOTICE(fmt, args...) HPSB_PRINT(KERN_NOTICE, fmt , ## args) 36#define HPSB_NOTICE(fmt, args...) HPSB_PRINT(KERN_NOTICE, fmt , ## args)
62#define HPSB_WARN(fmt, args...) HPSB_PRINT(KERN_WARNING, fmt , ## args) 37#define HPSB_WARN(fmt, args...) HPSB_PRINT(KERN_WARNING, fmt , ## args)
63#define HPSB_ERR(fmt, args...) HPSB_PRINT(KERN_ERR, fmt , ## args) 38#define HPSB_ERR(fmt, args...) HPSB_PRINT(KERN_ERR, fmt , ## args)
64 39
65#ifdef CONFIG_IEEE1394_VERBOSEDEBUG 40#ifdef CONFIG_IEEE1394_VERBOSEDEBUG
66#define HPSB_VERBOSE(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args) 41#define HPSB_VERBOSE(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args)
42#define HPSB_DEBUG_TLABELS
67#else 43#else
68#define HPSB_VERBOSE(fmt, args...) 44#define HPSB_VERBOSE(fmt, args...) do {} while (0)
69#endif 45#endif
70 46
71#define HPSB_PANIC(fmt, args...) panic("ieee1394: " fmt "\n" , ## args)
72
73#define HPSB_TRACE() HPSB_PRINT(KERN_INFO, "TRACE - %s, %s(), line %d", __FILE__, __FUNCTION__, __LINE__)
74
75
76#ifdef __BIG_ENDIAN 47#ifdef __BIG_ENDIAN
77 48
78static __inline__ void *memcpy_le32(u32 *dest, const u32 *__src, size_t count) 49static inline void *memcpy_le32(u32 *dest, const u32 *__src, size_t count)
79{ 50{
80 void *tmp = dest; 51 void *tmp = dest;
81 u32 *src = (u32 *)__src; 52 u32 *src = (u32 *)__src;
82 53
83 count /= 4; 54 count /= 4;
84 55 while (count--)
85 while (count--) { 56 *dest++ = swab32p(src++);
86 *dest++ = swab32p(src++); 57 return tmp;
87 }
88
89 return tmp;
90} 58}
91 59
92#else 60#else
93 61
94static __inline__ void *memcpy_le32(u32 *dest, const u32 *src, size_t count) 62static __inline__ void *memcpy_le32(u32 *dest, const u32 *src, size_t count)
95{ 63{
96 return memcpy(dest, src, count); 64 return memcpy(dest, src, count);
97} 65}
98 66
99#endif /* __BIG_ENDIAN */ 67#endif /* __BIG_ENDIAN */
diff --git a/drivers/ieee1394/iso.c b/drivers/ieee1394/iso.c
index f26680ebef7c..08bd15d2a7b6 100644
--- a/drivers/ieee1394/iso.c
+++ b/drivers/ieee1394/iso.c
@@ -9,8 +9,11 @@
9 * directory of the kernel sources for details. 9 * directory of the kernel sources for details.
10 */ 10 */
11 11
12#include <linux/slab.h> 12#include <linux/pci.h>
13#include <linux/sched.h> 13#include <linux/sched.h>
14#include <linux/slab.h>
15
16#include "hosts.h"
14#include "iso.h" 17#include "iso.h"
15 18
16void hpsb_iso_stop(struct hpsb_iso *iso) 19void hpsb_iso_stop(struct hpsb_iso *iso)
diff --git a/drivers/ieee1394/iso.h b/drivers/ieee1394/iso.h
index 3efc60b33a88..1210a97e8685 100644
--- a/drivers/ieee1394/iso.h
+++ b/drivers/ieee1394/iso.h
@@ -12,33 +12,40 @@
12#ifndef IEEE1394_ISO_H 12#ifndef IEEE1394_ISO_H
13#define IEEE1394_ISO_H 13#define IEEE1394_ISO_H
14 14
15#include "hosts.h" 15#include <linux/spinlock_types.h>
16#include <asm/atomic.h>
17#include <asm/types.h>
18
16#include "dma.h" 19#include "dma.h"
17 20
18/* high-level ISO interface */ 21struct hpsb_host;
19 22
20/* This API sends and receives isochronous packets on a large, 23/* high-level ISO interface */
21 virtually-contiguous kernel memory buffer. The buffer may be mapped
22 into a user-space process for zero-copy transmission and reception.
23 24
24 There are no explicit boundaries between packets in the buffer. A 25/*
25 packet may be transmitted or received at any location. However, 26 * This API sends and receives isochronous packets on a large,
26 low-level drivers may impose certain restrictions on alignment or 27 * virtually-contiguous kernel memory buffer. The buffer may be mapped
27 size of packets. (e.g. in OHCI no packet may cross a page boundary, 28 * into a user-space process for zero-copy transmission and reception.
28 and packets should be quadlet-aligned) 29 *
29*/ 30 * There are no explicit boundaries between packets in the buffer. A
31 * packet may be transmitted or received at any location. However,
32 * low-level drivers may impose certain restrictions on alignment or
33 * size of packets. (e.g. in OHCI no packet may cross a page boundary,
34 * and packets should be quadlet-aligned)
35 */
30 36
31/* Packet descriptor - the API maintains a ring buffer of these packet 37/* Packet descriptor - the API maintains a ring buffer of these packet
32 descriptors in kernel memory (hpsb_iso.infos[]). */ 38 * descriptors in kernel memory (hpsb_iso.infos[]). */
33
34struct hpsb_iso_packet_info { 39struct hpsb_iso_packet_info {
35 /* offset of data payload relative to the first byte of the buffer */ 40 /* offset of data payload relative to the first byte of the buffer */
36 __u32 offset; 41 __u32 offset;
37 42
38 /* length of the data payload, in bytes (not including the isochronous header) */ 43 /* length of the data payload, in bytes (not including the isochronous
44 * header) */
39 __u16 len; 45 __u16 len;
40 46
41 /* (recv only) the cycle number (mod 8000) on which the packet was received */ 47 /* (recv only) the cycle number (mod 8000) on which the packet was
48 * received */
42 __u16 cycle; 49 __u16 cycle;
43 50
44 /* (recv only) channel on which the packet was received */ 51 /* (recv only) channel on which the packet was received */
@@ -48,12 +55,10 @@ struct hpsb_iso_packet_info {
48 __u8 tag; 55 __u8 tag;
49 __u8 sy; 56 __u8 sy;
50 57
51 /* 58 /* length in bytes of the packet including header/trailer.
52 * length in bytes of the packet including header/trailer. 59 * MUST be at structure end, since the first part of this structure is
53 * MUST be at structure end, since the first part of this structure is also 60 * also defined in raw1394.h (i.e. struct raw1394_iso_packet_info), is
54 * defined in raw1394.h (i.e. struct raw1394_iso_packet_info), is copied to 61 * copied to userspace and is accessed there through libraw1394. */
55 * userspace and is accessed there through libraw1394.
56 */
57 __u16 total_len; 62 __u16 total_len;
58}; 63};
59 64
@@ -75,8 +80,8 @@ struct hpsb_iso {
75 void *hostdata; 80 void *hostdata;
76 81
77 /* a function to be called (from interrupt context) after 82 /* a function to be called (from interrupt context) after
78 outgoing packets have been sent, or incoming packets have 83 * outgoing packets have been sent, or incoming packets have
79 arrived */ 84 * arrived */
80 void (*callback)(struct hpsb_iso*); 85 void (*callback)(struct hpsb_iso*);
81 86
82 /* wait for buffer space */ 87 /* wait for buffer space */
@@ -88,7 +93,7 @@ struct hpsb_iso {
88 93
89 94
90 /* greatest # of packets between interrupts - controls 95 /* greatest # of packets between interrupts - controls
91 the maximum latency of the buffer */ 96 * the maximum latency of the buffer */
92 int irq_interval; 97 int irq_interval;
93 98
94 /* the buffer for packet data payloads */ 99 /* the buffer for packet data payloads */
@@ -112,8 +117,8 @@ struct hpsb_iso {
112 int pkt_dma; 117 int pkt_dma;
113 118
114 /* how many packets, starting at first_packet: 119 /* how many packets, starting at first_packet:
115 (transmit) are ready to be filled with data 120 * (transmit) are ready to be filled with data
116 (receive) contain received data */ 121 * (receive) contain received data */
117 int n_ready_packets; 122 int n_ready_packets;
118 123
119 /* how many times the buffer has overflowed or underflowed */ 124 /* how many times the buffer has overflowed or underflowed */
@@ -134,7 +139,7 @@ struct hpsb_iso {
134 int start_cycle; 139 int start_cycle;
135 140
136 /* cycle at which next packet will be transmitted, 141 /* cycle at which next packet will be transmitted,
137 -1 if not known */ 142 * -1 if not known */
138 int xmit_cycle; 143 int xmit_cycle;
139 144
140 /* ringbuffer of packet descriptors in regular kernel memory 145 /* ringbuffer of packet descriptors in regular kernel memory
@@ -170,25 +175,30 @@ int hpsb_iso_recv_unlisten_channel(struct hpsb_iso *iso, unsigned char channel);
170int hpsb_iso_recv_set_channel_mask(struct hpsb_iso *iso, u64 mask); 175int hpsb_iso_recv_set_channel_mask(struct hpsb_iso *iso, u64 mask);
171 176
172/* start/stop DMA */ 177/* start/stop DMA */
173int hpsb_iso_xmit_start(struct hpsb_iso *iso, int start_on_cycle, int prebuffer); 178int hpsb_iso_xmit_start(struct hpsb_iso *iso, int start_on_cycle,
174int hpsb_iso_recv_start(struct hpsb_iso *iso, int start_on_cycle, int tag_mask, int sync); 179 int prebuffer);
180int hpsb_iso_recv_start(struct hpsb_iso *iso, int start_on_cycle,
181 int tag_mask, int sync);
175void hpsb_iso_stop(struct hpsb_iso *iso); 182void hpsb_iso_stop(struct hpsb_iso *iso);
176 183
177/* deallocate buffer and DMA context */ 184/* deallocate buffer and DMA context */
178void hpsb_iso_shutdown(struct hpsb_iso *iso); 185void hpsb_iso_shutdown(struct hpsb_iso *iso);
179 186
180/* queue a packet for transmission. 'offset' is relative to the beginning of the 187/* queue a packet for transmission.
181 DMA buffer, where the packet's data payload should already have been placed */ 188 * 'offset' is relative to the beginning of the DMA buffer, where the packet's
182int hpsb_iso_xmit_queue_packet(struct hpsb_iso *iso, u32 offset, u16 len, u8 tag, u8 sy); 189 * data payload should already have been placed. */
190int hpsb_iso_xmit_queue_packet(struct hpsb_iso *iso, u32 offset, u16 len,
191 u8 tag, u8 sy);
183 192
184/* wait until all queued packets have been transmitted to the bus */ 193/* wait until all queued packets have been transmitted to the bus */
185int hpsb_iso_xmit_sync(struct hpsb_iso *iso); 194int hpsb_iso_xmit_sync(struct hpsb_iso *iso);
186 195
187/* N packets have been read out of the buffer, re-use the buffer space */ 196/* N packets have been read out of the buffer, re-use the buffer space */
188int hpsb_iso_recv_release_packets(struct hpsb_iso *recv, unsigned int n_packets); 197int hpsb_iso_recv_release_packets(struct hpsb_iso *recv,
198 unsigned int n_packets);
189 199
190/* check for arrival of new packets immediately (even if irq_interval 200/* check for arrival of new packets immediately (even if irq_interval
191 has not yet been reached) */ 201 * has not yet been reached) */
192int hpsb_iso_recv_flush(struct hpsb_iso *iso); 202int hpsb_iso_recv_flush(struct hpsb_iso *iso);
193 203
194/* returns # of packets ready to send or receive */ 204/* returns # of packets ready to send or receive */
@@ -197,14 +207,15 @@ int hpsb_iso_n_ready(struct hpsb_iso *iso);
197/* the following are callbacks available to low-level drivers */ 207/* the following are callbacks available to low-level drivers */
198 208
199/* call after a packet has been transmitted to the bus (interrupt context is OK) 209/* call after a packet has been transmitted to the bus (interrupt context is OK)
200 'cycle' is the _exact_ cycle the packet was sent on 210 * 'cycle' is the _exact_ cycle the packet was sent on
201 'error' should be non-zero if some sort of error occurred when sending the packet 211 * 'error' should be non-zero if some sort of error occurred when sending the
202*/ 212 * packet */
203void hpsb_iso_packet_sent(struct hpsb_iso *iso, int cycle, int error); 213void hpsb_iso_packet_sent(struct hpsb_iso *iso, int cycle, int error);
204 214
205/* call after a packet has been received (interrupt context OK) */ 215/* call after a packet has been received (interrupt context OK) */
206void hpsb_iso_packet_received(struct hpsb_iso *iso, u32 offset, u16 len, 216void hpsb_iso_packet_received(struct hpsb_iso *iso, u32 offset, u16 len,
207 u16 total_len, u16 cycle, u8 channel, u8 tag, u8 sy); 217 u16 total_len, u16 cycle, u8 channel, u8 tag,
218 u8 sy);
208 219
209/* call to wake waiting processes after buffer space has opened up. */ 220/* call to wake waiting processes after buffer space has opened up. */
210void hpsb_iso_wake(struct hpsb_iso *iso); 221void hpsb_iso_wake(struct hpsb_iso *iso);
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index d541b508a159..3e7974c57443 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -12,26 +12,23 @@
12#include <linux/kernel.h> 12#include <linux/kernel.h>
13#include <linux/list.h> 13#include <linux/list.h>
14#include <linux/slab.h> 14#include <linux/slab.h>
15#include <linux/smp_lock.h>
16#include <linux/interrupt.h>
17#include <linux/kmod.h>
18#include <linux/completion.h>
19#include <linux/delay.h> 15#include <linux/delay.h>
20#include <linux/pci.h> 16#include <linux/kthread.h>
21#include <linux/moduleparam.h> 17#include <linux/moduleparam.h>
22#include <asm/atomic.h> 18#include <asm/atomic.h>
23 19
24#include "ieee1394_types.h" 20#include "csr.h"
21#include "highlevel.h"
22#include "hosts.h"
25#include "ieee1394.h" 23#include "ieee1394.h"
26#include "ieee1394_core.h" 24#include "ieee1394_core.h"
27#include "hosts.h" 25#include "ieee1394_hotplug.h"
26#include "ieee1394_types.h"
28#include "ieee1394_transactions.h" 27#include "ieee1394_transactions.h"
29#include "highlevel.h"
30#include "csr.h"
31#include "nodemgr.h" 28#include "nodemgr.h"
32 29
33static int ignore_drivers; 30static int ignore_drivers;
34module_param(ignore_drivers, int, 0444); 31module_param(ignore_drivers, int, S_IRUGO | S_IWUSR);
35MODULE_PARM_DESC(ignore_drivers, "Disable automatic probing for drivers."); 32MODULE_PARM_DESC(ignore_drivers, "Disable automatic probing for drivers.");
36 33
37struct nodemgr_csr_info { 34struct nodemgr_csr_info {
@@ -71,7 +68,7 @@ static int nodemgr_check_speed(struct nodemgr_csr_info *ci, u64 addr,
71 u8 i, *speed, old_speed, good_speed; 68 u8 i, *speed, old_speed, good_speed;
72 int ret; 69 int ret;
73 70
74 speed = ci->host->speed + NODEID_TO_NODE(ci->nodeid); 71 speed = &(ci->host->speed[NODEID_TO_NODE(ci->nodeid)]);
75 old_speed = *speed; 72 old_speed = *speed;
76 good_speed = IEEE1394_SPEED_MAX + 1; 73 good_speed = IEEE1394_SPEED_MAX + 1;
77 74
@@ -161,16 +158,12 @@ static struct csr1212_bus_ops nodemgr_csr_ops = {
161 * but now we are much simpler because of the LDM. 158 * but now we are much simpler because of the LDM.
162 */ 159 */
163 160
164static DECLARE_MUTEX(nodemgr_serialize); 161static DEFINE_MUTEX(nodemgr_serialize);
165 162
166struct host_info { 163struct host_info {
167 struct hpsb_host *host; 164 struct hpsb_host *host;
168 struct list_head list; 165 struct list_head list;
169 struct completion exited; 166 struct task_struct *thread;
170 struct semaphore reset_sem;
171 int pid;
172 char daemon_name[15];
173 int kill_me;
174}; 167};
175 168
176static int nodemgr_bus_match(struct device * dev, struct device_driver * drv); 169static int nodemgr_bus_match(struct device * dev, struct device_driver * drv);
@@ -334,34 +327,44 @@ static ssize_t fw_show_ne_bus_options(struct device *dev, struct device_attribut
334static DEVICE_ATTR(bus_options,S_IRUGO,fw_show_ne_bus_options,NULL); 327static DEVICE_ATTR(bus_options,S_IRUGO,fw_show_ne_bus_options,NULL);
335 328
336 329
337/* tlabels_free, tlabels_allocations, tlabels_mask are read non-atomically 330#ifdef HPSB_DEBUG_TLABELS
338 * here, therefore displayed values may be occasionally wrong. */ 331static ssize_t fw_show_ne_tlabels_free(struct device *dev,
339static ssize_t fw_show_ne_tlabels_free(struct device *dev, struct device_attribute *attr, char *buf) 332 struct device_attribute *attr, char *buf)
340{ 333{
341 struct node_entry *ne = container_of(dev, struct node_entry, device); 334 struct node_entry *ne = container_of(dev, struct node_entry, device);
342 return sprintf(buf, "%d\n", 64 - bitmap_weight(ne->tpool->pool, 64)); 335 unsigned long flags;
343} 336 unsigned long *tp = ne->host->tl_pool[NODEID_TO_NODE(ne->nodeid)].map;
344static DEVICE_ATTR(tlabels_free,S_IRUGO,fw_show_ne_tlabels_free,NULL); 337 int tf;
345 338
339 spin_lock_irqsave(&hpsb_tlabel_lock, flags);
340 tf = 64 - bitmap_weight(tp, 64);
341 spin_unlock_irqrestore(&hpsb_tlabel_lock, flags);
346 342
347static ssize_t fw_show_ne_tlabels_allocations(struct device *dev, struct device_attribute *attr, char *buf) 343 return sprintf(buf, "%d\n", tf);
348{
349 struct node_entry *ne = container_of(dev, struct node_entry, device);
350 return sprintf(buf, "%u\n", ne->tpool->allocations);
351} 344}
352static DEVICE_ATTR(tlabels_allocations,S_IRUGO,fw_show_ne_tlabels_allocations,NULL); 345static DEVICE_ATTR(tlabels_free,S_IRUGO,fw_show_ne_tlabels_free,NULL);
353 346
354 347
355static ssize_t fw_show_ne_tlabels_mask(struct device *dev, struct device_attribute *attr, char *buf) 348static ssize_t fw_show_ne_tlabels_mask(struct device *dev,
349 struct device_attribute *attr, char *buf)
356{ 350{
357 struct node_entry *ne = container_of(dev, struct node_entry, device); 351 struct node_entry *ne = container_of(dev, struct node_entry, device);
352 unsigned long flags;
353 unsigned long *tp = ne->host->tl_pool[NODEID_TO_NODE(ne->nodeid)].map;
354 u64 tm;
355
356 spin_lock_irqsave(&hpsb_tlabel_lock, flags);
358#if (BITS_PER_LONG <= 32) 357#if (BITS_PER_LONG <= 32)
359 return sprintf(buf, "0x%08lx%08lx\n", ne->tpool->pool[0], ne->tpool->pool[1]); 358 tm = ((u64)tp[0] << 32) + tp[1];
360#else 359#else
361 return sprintf(buf, "0x%016lx\n", ne->tpool->pool[0]); 360 tm = tp[0];
362#endif 361#endif
362 spin_unlock_irqrestore(&hpsb_tlabel_lock, flags);
363
364 return sprintf(buf, "0x%016llx\n", tm);
363} 365}
364static DEVICE_ATTR(tlabels_mask, S_IRUGO, fw_show_ne_tlabels_mask, NULL); 366static DEVICE_ATTR(tlabels_mask, S_IRUGO, fw_show_ne_tlabels_mask, NULL);
367#endif /* HPSB_DEBUG_TLABELS */
365 368
366 369
367static ssize_t fw_set_ignore_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 370static ssize_t fw_set_ignore_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
@@ -408,26 +411,11 @@ static ssize_t fw_get_destroy_node(struct bus_type *bus, char *buf)
408} 411}
409static BUS_ATTR(destroy_node, S_IWUSR | S_IRUGO, fw_get_destroy_node, fw_set_destroy_node); 412static BUS_ATTR(destroy_node, S_IWUSR | S_IRUGO, fw_get_destroy_node, fw_set_destroy_node);
410 413
411static int nodemgr_rescan_bus_thread(void *__unused)
412{
413 /* No userlevel access needed */
414 daemonize("kfwrescan");
415
416 bus_rescan_devices(&ieee1394_bus_type);
417
418 return 0;
419}
420 414
421static ssize_t fw_set_rescan(struct bus_type *bus, const char *buf, size_t count) 415static ssize_t fw_set_rescan(struct bus_type *bus, const char *buf, size_t count)
422{ 416{
423 int state = simple_strtoul(buf, NULL, 10); 417 if (simple_strtoul(buf, NULL, 10) == 1)
424 418 bus_rescan_devices(&ieee1394_bus_type);
425 /* Don't wait for this, or care about errors. Root could do
426 * something stupid and spawn this a lot of times, but that's
427 * root's fault. */
428 if (state == 1)
429 kernel_thread(nodemgr_rescan_bus_thread, NULL, CLONE_KERNEL);
430
431 return count; 419 return count;
432} 420}
433static ssize_t fw_get_rescan(struct bus_type *bus, char *buf) 421static ssize_t fw_get_rescan(struct bus_type *bus, char *buf)
@@ -483,9 +471,10 @@ static struct device_attribute *const fw_ne_attrs[] = {
483 &dev_attr_ne_vendor_id, 471 &dev_attr_ne_vendor_id,
484 &dev_attr_ne_nodeid, 472 &dev_attr_ne_nodeid,
485 &dev_attr_bus_options, 473 &dev_attr_bus_options,
474#ifdef HPSB_DEBUG_TLABELS
486 &dev_attr_tlabels_free, 475 &dev_attr_tlabels_free,
487 &dev_attr_tlabels_allocations,
488 &dev_attr_tlabels_mask, 476 &dev_attr_tlabels_mask,
477#endif
489}; 478};
490 479
491 480
@@ -804,8 +793,6 @@ static struct node_entry *nodemgr_create_node(octlet_t guid, struct csr1212_csr
804 if (!ne) 793 if (!ne)
805 return NULL; 794 return NULL;
806 795
807 ne->tpool = &host->tpool[nodeid & NODE_MASK];
808
809 ne->host = host; 796 ne->host = host;
810 ne->nodeid = nodeid; 797 ne->nodeid = nodeid;
811 ne->generation = generation; 798 ne->generation = generation;
@@ -1251,6 +1238,7 @@ static void nodemgr_node_scan_one(struct host_info *hi,
1251 octlet_t guid; 1238 octlet_t guid;
1252 struct csr1212_csr *csr; 1239 struct csr1212_csr *csr;
1253 struct nodemgr_csr_info *ci; 1240 struct nodemgr_csr_info *ci;
1241 u8 *speed;
1254 1242
1255 ci = kmalloc(sizeof(*ci), GFP_KERNEL); 1243 ci = kmalloc(sizeof(*ci), GFP_KERNEL);
1256 if (!ci) 1244 if (!ci)
@@ -1259,8 +1247,12 @@ static void nodemgr_node_scan_one(struct host_info *hi,
1259 ci->host = host; 1247 ci->host = host;
1260 ci->nodeid = nodeid; 1248 ci->nodeid = nodeid;
1261 ci->generation = generation; 1249 ci->generation = generation;
1262 ci->speed_unverified = 1250
1263 host->speed[NODEID_TO_NODE(nodeid)] > IEEE1394_SPEED_100; 1251 /* Prepare for speed probe which occurs when reading the ROM */
1252 speed = &(host->speed[NODEID_TO_NODE(nodeid)]);
1253 if (*speed > host->csr.lnk_spd)
1254 *speed = host->csr.lnk_spd;
1255 ci->speed_unverified = *speed > IEEE1394_SPEED_100;
1264 1256
1265 /* We need to detect when the ConfigROM's generation has changed, 1257 /* We need to detect when the ConfigROM's generation has changed,
1266 * so we only update the node's info when it needs to be. */ 1258 * so we only update the node's info when it needs to be. */
@@ -1300,8 +1292,6 @@ static void nodemgr_node_scan_one(struct host_info *hi,
1300 nodemgr_create_node(guid, csr, hi, nodeid, generation); 1292 nodemgr_create_node(guid, csr, hi, nodeid, generation);
1301 else 1293 else
1302 nodemgr_update_node(ne, csr, hi, nodeid, generation); 1294 nodemgr_update_node(ne, csr, hi, nodeid, generation);
1303
1304 return;
1305} 1295}
1306 1296
1307 1297
@@ -1326,6 +1316,7 @@ static void nodemgr_node_scan(struct host_info *hi, int generation)
1326} 1316}
1327 1317
1328 1318
1319/* Caller needs to hold nodemgr_ud_class.subsys.rwsem as reader. */
1329static void nodemgr_suspend_ne(struct node_entry *ne) 1320static void nodemgr_suspend_ne(struct node_entry *ne)
1330{ 1321{
1331 struct class_device *cdev; 1322 struct class_device *cdev;
@@ -1361,6 +1352,7 @@ static void nodemgr_resume_ne(struct node_entry *ne)
1361 ne->in_limbo = 0; 1352 ne->in_limbo = 0;
1362 device_remove_file(&ne->device, &dev_attr_ne_in_limbo); 1353 device_remove_file(&ne->device, &dev_attr_ne_in_limbo);
1363 1354
1355 down_read(&nodemgr_ud_class.subsys.rwsem);
1364 down_read(&ne->device.bus->subsys.rwsem); 1356 down_read(&ne->device.bus->subsys.rwsem);
1365 list_for_each_entry(cdev, &nodemgr_ud_class.children, node) { 1357 list_for_each_entry(cdev, &nodemgr_ud_class.children, node) {
1366 ud = container_of(cdev, struct unit_directory, class_dev); 1358 ud = container_of(cdev, struct unit_directory, class_dev);
@@ -1372,21 +1364,21 @@ static void nodemgr_resume_ne(struct node_entry *ne)
1372 ud->device.driver->resume(&ud->device); 1364 ud->device.driver->resume(&ud->device);
1373 } 1365 }
1374 up_read(&ne->device.bus->subsys.rwsem); 1366 up_read(&ne->device.bus->subsys.rwsem);
1367 up_read(&nodemgr_ud_class.subsys.rwsem);
1375 1368
1376 HPSB_DEBUG("Node resumed: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx]", 1369 HPSB_DEBUG("Node resumed: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx]",
1377 NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid); 1370 NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid);
1378} 1371}
1379 1372
1380 1373
1374/* Caller needs to hold nodemgr_ud_class.subsys.rwsem as reader. */
1381static void nodemgr_update_pdrv(struct node_entry *ne) 1375static void nodemgr_update_pdrv(struct node_entry *ne)
1382{ 1376{
1383 struct unit_directory *ud; 1377 struct unit_directory *ud;
1384 struct hpsb_protocol_driver *pdrv; 1378 struct hpsb_protocol_driver *pdrv;
1385 struct class *class = &nodemgr_ud_class;
1386 struct class_device *cdev; 1379 struct class_device *cdev;
1387 1380
1388 down_read(&class->subsys.rwsem); 1381 list_for_each_entry(cdev, &nodemgr_ud_class.children, node) {
1389 list_for_each_entry(cdev, &class->children, node) {
1390 ud = container_of(cdev, struct unit_directory, class_dev); 1382 ud = container_of(cdev, struct unit_directory, class_dev);
1391 if (ud->ne != ne || !ud->device.driver) 1383 if (ud->ne != ne || !ud->device.driver)
1392 continue; 1384 continue;
@@ -1399,7 +1391,6 @@ static void nodemgr_update_pdrv(struct node_entry *ne)
1399 up_write(&ud->device.bus->subsys.rwsem); 1391 up_write(&ud->device.bus->subsys.rwsem);
1400 } 1392 }
1401 } 1393 }
1402 up_read(&class->subsys.rwsem);
1403} 1394}
1404 1395
1405 1396
@@ -1430,6 +1421,8 @@ static void nodemgr_irm_write_bc(struct node_entry *ne, int generation)
1430} 1421}
1431 1422
1432 1423
1424/* Caller needs to hold nodemgr_ud_class.subsys.rwsem as reader because the
1425 * calls to nodemgr_update_pdrv() and nodemgr_suspend_ne() here require it. */
1433static void nodemgr_probe_ne(struct host_info *hi, struct node_entry *ne, int generation) 1426static void nodemgr_probe_ne(struct host_info *hi, struct node_entry *ne, int generation)
1434{ 1427{
1435 struct device *dev; 1428 struct device *dev;
@@ -1492,9 +1485,8 @@ static void nodemgr_node_probe(struct host_info *hi, int generation)
1492 /* If we had a bus reset while we were scanning the bus, it is 1485 /* If we had a bus reset while we were scanning the bus, it is
1493 * possible that we did not probe all nodes. In that case, we 1486 * possible that we did not probe all nodes. In that case, we
1494 * skip the clean up for now, since we could remove nodes that 1487 * skip the clean up for now, since we could remove nodes that
1495 * were still on the bus. The bus reset increased hi->reset_sem, 1488 * were still on the bus. Another bus scan is pending which will
1496 * so there's a bus scan pending which will do the clean up 1489 * do the clean up eventually.
1497 * eventually.
1498 * 1490 *
1499 * Now let's tell the bus to rescan our devices. This may seem 1491 * Now let's tell the bus to rescan our devices. This may seem
1500 * like overhead, but the driver-model core will only scan a 1492 * like overhead, but the driver-model core will only scan a
@@ -1622,41 +1614,37 @@ static int nodemgr_host_thread(void *__hi)
1622{ 1614{
1623 struct host_info *hi = (struct host_info *)__hi; 1615 struct host_info *hi = (struct host_info *)__hi;
1624 struct hpsb_host *host = hi->host; 1616 struct hpsb_host *host = hi->host;
1625 int reset_cycles = 0; 1617 unsigned int g, generation = get_hpsb_generation(host) - 1;
1626 1618 int i, reset_cycles = 0;
1627 /* No userlevel access needed */
1628 daemonize(hi->daemon_name);
1629 1619
1630 /* Setup our device-model entries */ 1620 /* Setup our device-model entries */
1631 nodemgr_create_host_dev_files(host); 1621 nodemgr_create_host_dev_files(host);
1632 1622
1633 /* Sit and wait for a signal to probe the nodes on the bus. This 1623 for (;;) {
1634 * happens when we get a bus reset. */ 1624 /* Sleep until next bus reset */
1635 while (1) { 1625 set_current_state(TASK_INTERRUPTIBLE);
1636 unsigned int generation = 0; 1626 if (get_hpsb_generation(host) == generation)
1637 int i; 1627 schedule();
1628 __set_current_state(TASK_RUNNING);
1629
1630 /* Thread may have been woken up to freeze or to exit */
1631 if (try_to_freeze())
1632 continue;
1633 if (kthread_should_stop())
1634 goto exit;
1638 1635
1639 if (down_interruptible(&hi->reset_sem) || 1636 if (mutex_lock_interruptible(&nodemgr_serialize)) {
1640 down_interruptible(&nodemgr_serialize)) {
1641 if (try_to_freeze()) 1637 if (try_to_freeze())
1642 continue; 1638 continue;
1643 printk("NodeMgr: received unexpected signal?!\n" ); 1639 goto exit;
1644 break;
1645 }
1646
1647 if (hi->kill_me) {
1648 up(&nodemgr_serialize);
1649 break;
1650 } 1640 }
1651 1641
1652 /* Pause for 1/4 second in 1/16 second intervals, 1642 /* Pause for 1/4 second in 1/16 second intervals,
1653 * to make sure things settle down. */ 1643 * to make sure things settle down. */
1644 g = get_hpsb_generation(host);
1654 for (i = 0; i < 4 ; i++) { 1645 for (i = 0; i < 4 ; i++) {
1655 set_current_state(TASK_INTERRUPTIBLE); 1646 if (msleep_interruptible(63) || kthread_should_stop())
1656 if (msleep_interruptible(63)) { 1647 goto unlock_exit;
1657 up(&nodemgr_serialize);
1658 goto caught_signal;
1659 }
1660 1648
1661 /* Now get the generation in which the node ID's we collect 1649 /* Now get the generation in which the node ID's we collect
1662 * are valid. During the bus scan we will use this generation 1650 * are valid. During the bus scan we will use this generation
@@ -1667,20 +1655,14 @@ static int nodemgr_host_thread(void *__hi)
1667 1655
1668 /* If we get a reset before we are done waiting, then 1656 /* If we get a reset before we are done waiting, then
1669 * start the the waiting over again */ 1657 * start the the waiting over again */
1670 while (!down_trylock(&hi->reset_sem)) 1658 if (generation != g)
1671 i = 0; 1659 g = generation, i = 0;
1672
1673 /* Check the kill_me again */
1674 if (hi->kill_me) {
1675 up(&nodemgr_serialize);
1676 goto caught_signal;
1677 }
1678 } 1660 }
1679 1661
1680 if (!nodemgr_check_irm_capability(host, reset_cycles) || 1662 if (!nodemgr_check_irm_capability(host, reset_cycles) ||
1681 !nodemgr_do_irm_duties(host, reset_cycles)) { 1663 !nodemgr_do_irm_duties(host, reset_cycles)) {
1682 reset_cycles++; 1664 reset_cycles++;
1683 up(&nodemgr_serialize); 1665 mutex_unlock(&nodemgr_serialize);
1684 continue; 1666 continue;
1685 } 1667 }
1686 reset_cycles = 0; 1668 reset_cycles = 0;
@@ -1698,13 +1680,13 @@ static int nodemgr_host_thread(void *__hi)
1698 /* Update some of our sysfs symlinks */ 1680 /* Update some of our sysfs symlinks */
1699 nodemgr_update_host_dev_links(host); 1681 nodemgr_update_host_dev_links(host);
1700 1682
1701 up(&nodemgr_serialize); 1683 mutex_unlock(&nodemgr_serialize);
1702 } 1684 }
1703 1685unlock_exit:
1704caught_signal: 1686 mutex_unlock(&nodemgr_serialize);
1687exit:
1705 HPSB_VERBOSE("NodeMgr: Exiting thread"); 1688 HPSB_VERBOSE("NodeMgr: Exiting thread");
1706 1689 return 0;
1707 complete_and_exit(&hi->exited, 0);
1708} 1690}
1709 1691
1710int nodemgr_for_each_host(void *__data, int (*cb)(struct hpsb_host *, void *)) 1692int nodemgr_for_each_host(void *__data, int (*cb)(struct hpsb_host *, void *))
@@ -1764,41 +1746,27 @@ static void nodemgr_add_host(struct hpsb_host *host)
1764 struct host_info *hi; 1746 struct host_info *hi;
1765 1747
1766 hi = hpsb_create_hostinfo(&nodemgr_highlevel, host, sizeof(*hi)); 1748 hi = hpsb_create_hostinfo(&nodemgr_highlevel, host, sizeof(*hi));
1767
1768 if (!hi) { 1749 if (!hi) {
1769 HPSB_ERR ("NodeMgr: out of memory in add host"); 1750 HPSB_ERR("NodeMgr: out of memory in add host");
1770 return; 1751 return;
1771 } 1752 }
1772
1773 hi->host = host; 1753 hi->host = host;
1774 init_completion(&hi->exited); 1754 hi->thread = kthread_run(nodemgr_host_thread, hi, "knodemgrd_%d",
1775 sema_init(&hi->reset_sem, 0); 1755 host->id);
1776 1756 if (IS_ERR(hi->thread)) {
1777 sprintf(hi->daemon_name, "knodemgrd_%d", host->id); 1757 HPSB_ERR("NodeMgr: cannot start thread for host %d", host->id);
1778
1779 hi->pid = kernel_thread(nodemgr_host_thread, hi, CLONE_KERNEL);
1780
1781 if (hi->pid < 0) {
1782 HPSB_ERR ("NodeMgr: failed to start %s thread for %s",
1783 hi->daemon_name, host->driver->name);
1784 hpsb_destroy_hostinfo(&nodemgr_highlevel, host); 1758 hpsb_destroy_hostinfo(&nodemgr_highlevel, host);
1785 return;
1786 } 1759 }
1787
1788 return;
1789} 1760}
1790 1761
1791static void nodemgr_host_reset(struct hpsb_host *host) 1762static void nodemgr_host_reset(struct hpsb_host *host)
1792{ 1763{
1793 struct host_info *hi = hpsb_get_hostinfo(&nodemgr_highlevel, host); 1764 struct host_info *hi = hpsb_get_hostinfo(&nodemgr_highlevel, host);
1794 1765
1795 if (hi != NULL) { 1766 if (hi) {
1796 HPSB_VERBOSE("NodeMgr: Processing host reset for %s", hi->daemon_name); 1767 HPSB_VERBOSE("NodeMgr: Processing reset for host %d", host->id);
1797 up(&hi->reset_sem); 1768 wake_up_process(hi->thread);
1798 } else 1769 }
1799 HPSB_ERR ("NodeMgr: could not process reset of unused host");
1800
1801 return;
1802} 1770}
1803 1771
1804static void nodemgr_remove_host(struct hpsb_host *host) 1772static void nodemgr_remove_host(struct hpsb_host *host)
@@ -1806,18 +1774,9 @@ static void nodemgr_remove_host(struct hpsb_host *host)
1806 struct host_info *hi = hpsb_get_hostinfo(&nodemgr_highlevel, host); 1774 struct host_info *hi = hpsb_get_hostinfo(&nodemgr_highlevel, host);
1807 1775
1808 if (hi) { 1776 if (hi) {
1809 if (hi->pid >= 0) { 1777 kthread_stop(hi->thread);
1810 hi->kill_me = 1; 1778 nodemgr_remove_host_dev(&host->device);
1811 mb(); 1779 }
1812 up(&hi->reset_sem);
1813 wait_for_completion(&hi->exited);
1814 nodemgr_remove_host_dev(&host->device);
1815 }
1816 } else
1817 HPSB_ERR("NodeMgr: host %s does not exist, cannot remove",
1818 host->driver->name);
1819
1820 return;
1821} 1780}
1822 1781
1823static struct hpsb_highlevel nodemgr_highlevel = { 1782static struct hpsb_highlevel nodemgr_highlevel = {
diff --git a/drivers/ieee1394/nodemgr.h b/drivers/ieee1394/nodemgr.h
index 0b26616e16c3..0e1e7d930783 100644
--- a/drivers/ieee1394/nodemgr.h
+++ b/drivers/ieee1394/nodemgr.h
@@ -21,9 +21,15 @@
21#define _IEEE1394_NODEMGR_H 21#define _IEEE1394_NODEMGR_H
22 22
23#include <linux/device.h> 23#include <linux/device.h>
24#include "csr1212.h" 24#include <asm/types.h>
25
25#include "ieee1394_core.h" 26#include "ieee1394_core.h"
26#include "ieee1394_hotplug.h" 27#include "ieee1394_types.h"
28
29struct csr1212_csr;
30struct csr1212_keyval;
31struct hpsb_host;
32struct ieee1394_device_id;
27 33
28/* '1' '3' '9' '4' in ASCII */ 34/* '1' '3' '9' '4' in ASCII */
29#define IEEE1394_BUSID_MAGIC __constant_cpu_to_be32(0x31333934) 35#define IEEE1394_BUSID_MAGIC __constant_cpu_to_be32(0x31333934)
@@ -44,7 +50,6 @@ struct bus_options {
44 u16 max_rec; /* Maximum packet size node can receive */ 50 u16 max_rec; /* Maximum packet size node can receive */
45}; 51};
46 52
47
48#define UNIT_DIRECTORY_VENDOR_ID 0x01 53#define UNIT_DIRECTORY_VENDOR_ID 0x01
49#define UNIT_DIRECTORY_MODEL_ID 0x02 54#define UNIT_DIRECTORY_MODEL_ID 0x02
50#define UNIT_DIRECTORY_SPECIFIER_ID 0x04 55#define UNIT_DIRECTORY_SPECIFIER_ID 0x04
@@ -59,8 +64,8 @@ struct bus_options {
59 * unit directory for each of these protocols. 64 * unit directory for each of these protocols.
60 */ 65 */
61struct unit_directory { 66struct unit_directory {
62 struct node_entry *ne; /* The node which this directory belongs to */ 67 struct node_entry *ne; /* The node which this directory belongs to */
63 octlet_t address; /* Address of the unit directory on the node */ 68 octlet_t address; /* Address of the unit directory on the node */
64 u8 flags; /* Indicates which entries were read */ 69 u8 flags; /* Indicates which entries were read */
65 70
66 quadlet_t vendor_id; 71 quadlet_t vendor_id;
@@ -79,11 +84,10 @@ struct unit_directory {
79 int length; /* Number of quadlets */ 84 int length; /* Number of quadlets */
80 85
81 struct device device; 86 struct device device;
82
83 struct class_device class_dev; 87 struct class_device class_dev;
84 88
85 struct csr1212_keyval *ud_kv; 89 struct csr1212_keyval *ud_kv;
86 u32 lun; /* logical unit number immediate value */ 90 u32 lun; /* logical unit number immediate value */
87}; 91};
88 92
89struct node_entry { 93struct node_entry {
@@ -103,10 +107,8 @@ struct node_entry {
103 const char *vendor_oui; 107 const char *vendor_oui;
104 108
105 u32 capabilities; 109 u32 capabilities;
106 struct hpsb_tlabel_pool *tpool;
107 110
108 struct device device; 111 struct device device;
109
110 struct class_device class_dev; 112 struct class_device class_dev;
111 113
112 /* Means this node is not attached anymore */ 114 /* Means this node is not attached anymore */
@@ -153,8 +155,8 @@ static inline int hpsb_node_entry_valid(struct node_entry *ne)
153/* 155/*
154 * This will fill in the given, pre-initialised hpsb_packet with the current 156 * This will fill in the given, pre-initialised hpsb_packet with the current
155 * information from the node entry (host, node ID, generation number). It will 157 * information from the node entry (host, node ID, generation number). It will
156 * return false if the node owning the GUID is not accessible (and not modify the 158 * return false if the node owning the GUID is not accessible (and not modify
157 * hpsb_packet) and return true otherwise. 159 * the hpsb_packet) and return true otherwise.
158 * 160 *
159 * Note that packet sending may still fail in hpsb_send_packet if a bus reset 161 * Note that packet sending may still fail in hpsb_send_packet if a bus reset
160 * happens while you are trying to set up the packet (due to obsolete generation 162 * happens while you are trying to set up the packet (due to obsolete generation
@@ -170,16 +172,13 @@ int hpsb_node_write(struct node_entry *ne, u64 addr,
170int hpsb_node_lock(struct node_entry *ne, u64 addr, 172int hpsb_node_lock(struct node_entry *ne, u64 addr,
171 int extcode, quadlet_t *data, quadlet_t arg); 173 int extcode, quadlet_t *data, quadlet_t arg);
172 174
173
174/* Iterate the hosts, calling a given function with supplied data for each 175/* Iterate the hosts, calling a given function with supplied data for each
175 * host. */ 176 * host. */
176int nodemgr_for_each_host(void *__data, int (*cb)(struct hpsb_host *, void *)); 177int nodemgr_for_each_host(void *__data, int (*cb)(struct hpsb_host *, void *));
177 178
178
179int init_ieee1394_nodemgr(void); 179int init_ieee1394_nodemgr(void);
180void cleanup_ieee1394_nodemgr(void); 180void cleanup_ieee1394_nodemgr(void);
181 181
182
183/* The template for a host device */ 182/* The template for a host device */
184extern struct device nodemgr_dev_template_host; 183extern struct device nodemgr_dev_template_host;
185 184
diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c
index 448df2773377..8fd0030475ba 100644
--- a/drivers/ieee1394/ohci1394.c
+++ b/drivers/ieee1394/ohci1394.c
@@ -136,7 +136,7 @@
136#define DBGMSG(fmt, args...) \ 136#define DBGMSG(fmt, args...) \
137printk(KERN_INFO "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args) 137printk(KERN_INFO "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args)
138#else 138#else
139#define DBGMSG(fmt, args...) 139#define DBGMSG(fmt, args...) do {} while (0)
140#endif 140#endif
141 141
142#ifdef CONFIG_IEEE1394_OHCI_DMA_DEBUG 142#ifdef CONFIG_IEEE1394_OHCI_DMA_DEBUG
@@ -148,8 +148,8 @@ printk(KERN_INFO "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->
148 --global_outstanding_dmas, ## args) 148 --global_outstanding_dmas, ## args)
149static int global_outstanding_dmas = 0; 149static int global_outstanding_dmas = 0;
150#else 150#else
151#define OHCI_DMA_ALLOC(fmt, args...) 151#define OHCI_DMA_ALLOC(fmt, args...) do {} while (0)
152#define OHCI_DMA_FREE(fmt, args...) 152#define OHCI_DMA_FREE(fmt, args...) do {} while (0)
153#endif 153#endif
154 154
155/* print general (card independent) information */ 155/* print general (card independent) information */
@@ -181,36 +181,35 @@ static int alloc_dma_trm_ctx(struct ti_ohci *ohci, struct dma_trm_ctx *d,
181static void ohci1394_pci_remove(struct pci_dev *pdev); 181static void ohci1394_pci_remove(struct pci_dev *pdev);
182 182
183#ifndef __LITTLE_ENDIAN 183#ifndef __LITTLE_ENDIAN
184static unsigned hdr_sizes[] = 184const static size_t hdr_sizes[] = {
185{
186 3, /* TCODE_WRITEQ */ 185 3, /* TCODE_WRITEQ */
187 4, /* TCODE_WRITEB */ 186 4, /* TCODE_WRITEB */
188 3, /* TCODE_WRITE_RESPONSE */ 187 3, /* TCODE_WRITE_RESPONSE */
189 0, /* ??? */ 188 0, /* reserved */
190 3, /* TCODE_READQ */ 189 3, /* TCODE_READQ */
191 4, /* TCODE_READB */ 190 4, /* TCODE_READB */
192 3, /* TCODE_READQ_RESPONSE */ 191 3, /* TCODE_READQ_RESPONSE */
193 4, /* TCODE_READB_RESPONSE */ 192 4, /* TCODE_READB_RESPONSE */
194 1, /* TCODE_CYCLE_START (???) */ 193 1, /* TCODE_CYCLE_START */
195 4, /* TCODE_LOCK_REQUEST */ 194 4, /* TCODE_LOCK_REQUEST */
196 2, /* TCODE_ISO_DATA */ 195 2, /* TCODE_ISO_DATA */
197 4, /* TCODE_LOCK_RESPONSE */ 196 4, /* TCODE_LOCK_RESPONSE */
197 /* rest is reserved or link-internal */
198}; 198};
199 199
200/* Swap headers */ 200static inline void header_le32_to_cpu(quadlet_t *data, unsigned char tcode)
201static inline void packet_swab(quadlet_t *data, int tcode)
202{ 201{
203 size_t size = hdr_sizes[tcode]; 202 size_t size;
204 203
205 if (tcode > TCODE_LOCK_RESPONSE || hdr_sizes[tcode] == 0) 204 if (unlikely(tcode >= ARRAY_SIZE(hdr_sizes)))
206 return; 205 return;
207 206
207 size = hdr_sizes[tcode];
208 while (size--) 208 while (size--)
209 data[size] = swab32(data[size]); 209 data[size] = le32_to_cpu(data[size]);
210} 210}
211#else 211#else
212/* Don't waste cycles on same sex byte swaps */ 212#define header_le32_to_cpu(w,x) do {} while (0)
213#define packet_swab(w,x)
214#endif /* !LITTLE_ENDIAN */ 213#endif /* !LITTLE_ENDIAN */
215 214
216/*********************************** 215/***********************************
@@ -701,7 +700,7 @@ static void insert_packet(struct ti_ohci *ohci,
701 d->prg_cpu[idx]->data[2] = packet->header[2]; 700 d->prg_cpu[idx]->data[2] = packet->header[2];
702 d->prg_cpu[idx]->data[3] = packet->header[3]; 701 d->prg_cpu[idx]->data[3] = packet->header[3];
703 } 702 }
704 packet_swab(d->prg_cpu[idx]->data, packet->tcode); 703 header_le32_to_cpu(d->prg_cpu[idx]->data, packet->tcode);
705 } 704 }
706 705
707 if (packet->data_size) { /* block transmit */ 706 if (packet->data_size) { /* block transmit */
@@ -777,7 +776,7 @@ static void insert_packet(struct ti_ohci *ohci,
777 d->prg_cpu[idx]->data[0] = packet->speed_code<<16 | 776 d->prg_cpu[idx]->data[0] = packet->speed_code<<16 |
778 (packet->header[0] & 0xFFFF); 777 (packet->header[0] & 0xFFFF);
779 d->prg_cpu[idx]->data[1] = packet->header[0] & 0xFFFF0000; 778 d->prg_cpu[idx]->data[1] = packet->header[0] & 0xFFFF0000;
780 packet_swab(d->prg_cpu[idx]->data, packet->tcode); 779 header_le32_to_cpu(d->prg_cpu[idx]->data, packet->tcode);
781 780
782 d->prg_cpu[idx]->begin.control = 781 d->prg_cpu[idx]->begin.control =
783 cpu_to_le32(DMA_CTL_OUTPUT_MORE | 782 cpu_to_le32(DMA_CTL_OUTPUT_MORE |
@@ -2598,8 +2597,9 @@ static const int TCODE_SIZE[16] = {20, 0, 16, -1, 16, 20, 20, 0,
2598 * Determine the length of a packet in the buffer 2597 * Determine the length of a packet in the buffer
2599 * Optimization suggested by Pascal Drolet <pascal.drolet@informission.ca> 2598 * Optimization suggested by Pascal Drolet <pascal.drolet@informission.ca>
2600 */ 2599 */
2601static __inline__ int packet_length(struct dma_rcv_ctx *d, int idx, quadlet_t *buf_ptr, 2600static inline int packet_length(struct dma_rcv_ctx *d, int idx,
2602 int offset, unsigned char tcode, int noswap) 2601 quadlet_t *buf_ptr, int offset,
2602 unsigned char tcode, int noswap)
2603{ 2603{
2604 int length = -1; 2604 int length = -1;
2605 2605
@@ -2730,7 +2730,7 @@ static void dma_rcv_tasklet (unsigned long data)
2730 * bus reset. We always ignore it. */ 2730 * bus reset. We always ignore it. */
2731 if (tcode != OHCI1394_TCODE_PHY) { 2731 if (tcode != OHCI1394_TCODE_PHY) {
2732 if (!ohci->no_swap_incoming) 2732 if (!ohci->no_swap_incoming)
2733 packet_swab(d->spb, tcode); 2733 header_le32_to_cpu(d->spb, tcode);
2734 DBGMSG("Packet received from node" 2734 DBGMSG("Packet received from node"
2735 " %d ack=0x%02X spd=%d tcode=0x%X" 2735 " %d ack=0x%02X spd=%d tcode=0x%X"
2736 " length=%d ctx=%d tlabel=%d", 2736 " length=%d ctx=%d tlabel=%d",
@@ -2738,7 +2738,7 @@ static void dma_rcv_tasklet (unsigned long data)
2738 (cond_le32_to_cpu(d->spb[length/4-1], ohci->no_swap_incoming)>>16)&0x1f, 2738 (cond_le32_to_cpu(d->spb[length/4-1], ohci->no_swap_incoming)>>16)&0x1f,
2739 (cond_le32_to_cpu(d->spb[length/4-1], ohci->no_swap_incoming)>>21)&0x3, 2739 (cond_le32_to_cpu(d->spb[length/4-1], ohci->no_swap_incoming)>>21)&0x3,
2740 tcode, length, d->ctx, 2740 tcode, length, d->ctx,
2741 (cond_le32_to_cpu(d->spb[0], ohci->no_swap_incoming)>>10)&0x3f); 2741 (d->spb[0]>>10)&0x3f);
2742 2742
2743 ack = (((cond_le32_to_cpu(d->spb[length/4-1], ohci->no_swap_incoming)>>16)&0x1f) 2743 ack = (((cond_le32_to_cpu(d->spb[length/4-1], ohci->no_swap_incoming)>>16)&0x1f)
2744 == 0x11) ? 1 : 0; 2744 == 0x11) ? 1 : 0;
@@ -3529,9 +3529,10 @@ static void ohci1394_pci_remove(struct pci_dev *pdev)
3529 put_device(dev); 3529 put_device(dev);
3530} 3530}
3531 3531
3532 3532#ifdef CONFIG_PM
3533static int ohci1394_pci_resume (struct pci_dev *pdev) 3533static int ohci1394_pci_resume (struct pci_dev *pdev)
3534{ 3534{
3535/* PowerMac resume code comes first */
3535#ifdef CONFIG_PPC_PMAC 3536#ifdef CONFIG_PPC_PMAC
3536 if (machine_is(powermac)) { 3537 if (machine_is(powermac)) {
3537 struct device_node *of_node; 3538 struct device_node *of_node;
@@ -3543,17 +3544,23 @@ static int ohci1394_pci_resume (struct pci_dev *pdev)
3543 } 3544 }
3544#endif /* CONFIG_PPC_PMAC */ 3545#endif /* CONFIG_PPC_PMAC */
3545 3546
3547 pci_set_power_state(pdev, PCI_D0);
3546 pci_restore_state(pdev); 3548 pci_restore_state(pdev);
3547 pci_enable_device(pdev); 3549 return pci_enable_device(pdev);
3548
3549 return 0;
3550} 3550}
3551 3551
3552
3553static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) 3552static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state)
3554{ 3553{
3555 pci_save_state(pdev); 3554 int err;
3555
3556 err = pci_save_state(pdev);
3557 if (err)
3558 goto out;
3559 err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
3560 if (err)
3561 goto out;
3556 3562
3563/* PowerMac suspend code comes last */
3557#ifdef CONFIG_PPC_PMAC 3564#ifdef CONFIG_PPC_PMAC
3558 if (machine_is(powermac)) { 3565 if (machine_is(powermac)) {
3559 struct device_node *of_node; 3566 struct device_node *of_node;
@@ -3563,11 +3570,11 @@ static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state)
3563 if (of_node) 3570 if (of_node)
3564 pmac_call_feature(PMAC_FTR_1394_ENABLE, of_node, 0, 0); 3571 pmac_call_feature(PMAC_FTR_1394_ENABLE, of_node, 0, 0);
3565 } 3572 }
3566#endif 3573#endif /* CONFIG_PPC_PMAC */
3567 3574out:
3568 return 0; 3575 return err;
3569} 3576}
3570 3577#endif /* CONFIG_PM */
3571 3578
3572#define PCI_CLASS_FIREWIRE_OHCI ((PCI_CLASS_SERIAL_FIREWIRE << 8) | 0x10) 3579#define PCI_CLASS_FIREWIRE_OHCI ((PCI_CLASS_SERIAL_FIREWIRE << 8) | 0x10)
3573 3580
@@ -3590,8 +3597,10 @@ static struct pci_driver ohci1394_pci_driver = {
3590 .id_table = ohci1394_pci_tbl, 3597 .id_table = ohci1394_pci_tbl,
3591 .probe = ohci1394_pci_probe, 3598 .probe = ohci1394_pci_probe,
3592 .remove = ohci1394_pci_remove, 3599 .remove = ohci1394_pci_remove,
3600#ifdef CONFIG_PM
3593 .resume = ohci1394_pci_resume, 3601 .resume = ohci1394_pci_resume,
3594 .suspend = ohci1394_pci_suspend, 3602 .suspend = ohci1394_pci_suspend,
3603#endif
3595}; 3604};
3596 3605
3597/*********************************** 3606/***********************************
@@ -3718,5 +3727,7 @@ static int __init ohci1394_init(void)
3718 return pci_register_driver(&ohci1394_pci_driver); 3727 return pci_register_driver(&ohci1394_pci_driver);
3719} 3728}
3720 3729
3721module_init(ohci1394_init); 3730/* Register before most other device drivers.
3731 * Useful for remote debugging via physical DMA, e.g. using firescope. */
3732fs_initcall(ohci1394_init);
3722module_exit(ohci1394_cleanup); 3733module_exit(ohci1394_cleanup);
diff --git a/drivers/ieee1394/raw1394-private.h b/drivers/ieee1394/raw1394-private.h
index c93587be9cab..c7731d1bcd89 100644
--- a/drivers/ieee1394/raw1394-private.h
+++ b/drivers/ieee1394/raw1394-private.h
@@ -29,9 +29,8 @@ struct file_info {
29 29
30 struct list_head req_pending; 30 struct list_head req_pending;
31 struct list_head req_complete; 31 struct list_head req_complete;
32 struct semaphore complete_sem;
33 spinlock_t reqlists_lock; 32 spinlock_t reqlists_lock;
34 wait_queue_head_t poll_wait_complete; 33 wait_queue_head_t wait_complete;
35 34
36 struct list_head addr_list; 35 struct list_head addr_list;
37 36
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index 571ea68c0cf2..5ec4f5eb6b19 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -44,14 +44,15 @@
44#include <linux/compat.h> 44#include <linux/compat.h>
45 45
46#include "csr1212.h" 46#include "csr1212.h"
47#include "highlevel.h"
48#include "hosts.h"
47#include "ieee1394.h" 49#include "ieee1394.h"
48#include "ieee1394_types.h"
49#include "ieee1394_core.h" 50#include "ieee1394_core.h"
50#include "nodemgr.h" 51#include "ieee1394_hotplug.h"
51#include "hosts.h"
52#include "highlevel.h"
53#include "iso.h"
54#include "ieee1394_transactions.h" 52#include "ieee1394_transactions.h"
53#include "ieee1394_types.h"
54#include "iso.h"
55#include "nodemgr.h"
55#include "raw1394.h" 56#include "raw1394.h"
56#include "raw1394-private.h" 57#include "raw1394-private.h"
57 58
@@ -66,7 +67,7 @@
66#define DBGMSG(fmt, args...) \ 67#define DBGMSG(fmt, args...) \
67printk(KERN_INFO "raw1394:" fmt "\n" , ## args) 68printk(KERN_INFO "raw1394:" fmt "\n" , ## args)
68#else 69#else
69#define DBGMSG(fmt, args...) 70#define DBGMSG(fmt, args...) do {} while (0)
70#endif 71#endif
71 72
72static LIST_HEAD(host_info_list); 73static LIST_HEAD(host_info_list);
@@ -132,10 +133,9 @@ static void free_pending_request(struct pending_request *req)
132static void __queue_complete_req(struct pending_request *req) 133static void __queue_complete_req(struct pending_request *req)
133{ 134{
134 struct file_info *fi = req->file_info; 135 struct file_info *fi = req->file_info;
135 list_move_tail(&req->list, &fi->req_complete);
136 136
137 up(&fi->complete_sem); 137 list_move_tail(&req->list, &fi->req_complete);
138 wake_up_interruptible(&fi->poll_wait_complete); 138 wake_up(&fi->wait_complete);
139} 139}
140 140
141static void queue_complete_req(struct pending_request *req) 141static void queue_complete_req(struct pending_request *req)
@@ -463,13 +463,36 @@ raw1394_compat_read(const char __user *buf, struct raw1394_request *r)
463 463
464#endif 464#endif
465 465
466/* get next completed request (caller must hold fi->reqlists_lock) */
467static inline struct pending_request *__next_complete_req(struct file_info *fi)
468{
469 struct list_head *lh;
470 struct pending_request *req = NULL;
471
472 if (!list_empty(&fi->req_complete)) {
473 lh = fi->req_complete.next;
474 list_del(lh);
475 req = list_entry(lh, struct pending_request, list);
476 }
477 return req;
478}
479
480/* atomically get next completed request */
481static struct pending_request *next_complete_req(struct file_info *fi)
482{
483 unsigned long flags;
484 struct pending_request *req;
485
486 spin_lock_irqsave(&fi->reqlists_lock, flags);
487 req = __next_complete_req(fi);
488 spin_unlock_irqrestore(&fi->reqlists_lock, flags);
489 return req;
490}
466 491
467static ssize_t raw1394_read(struct file *file, char __user * buffer, 492static ssize_t raw1394_read(struct file *file, char __user * buffer,
468 size_t count, loff_t * offset_is_ignored) 493 size_t count, loff_t * offset_is_ignored)
469{ 494{
470 unsigned long flags;
471 struct file_info *fi = (struct file_info *)file->private_data; 495 struct file_info *fi = (struct file_info *)file->private_data;
472 struct list_head *lh;
473 struct pending_request *req; 496 struct pending_request *req;
474 ssize_t ret; 497 ssize_t ret;
475 498
@@ -487,22 +510,21 @@ static ssize_t raw1394_read(struct file *file, char __user * buffer,
487 } 510 }
488 511
489 if (file->f_flags & O_NONBLOCK) { 512 if (file->f_flags & O_NONBLOCK) {
490 if (down_trylock(&fi->complete_sem)) { 513 if (!(req = next_complete_req(fi)))
491 return -EAGAIN; 514 return -EAGAIN;
492 }
493 } else { 515 } else {
494 if (down_interruptible(&fi->complete_sem)) { 516 /*
517 * NB: We call the macro wait_event_interruptible() with a
518 * condition argument with side effect. This is only possible
519 * because the side effect does not occur until the condition
520 * became true, and wait_event_interruptible() won't evaluate
521 * the condition again after that.
522 */
523 if (wait_event_interruptible(fi->wait_complete,
524 (req = next_complete_req(fi))))
495 return -ERESTARTSYS; 525 return -ERESTARTSYS;
496 }
497 } 526 }
498 527
499 spin_lock_irqsave(&fi->reqlists_lock, flags);
500 lh = fi->req_complete.next;
501 list_del(lh);
502 spin_unlock_irqrestore(&fi->reqlists_lock, flags);
503
504 req = list_entry(lh, struct pending_request, list);
505
506 if (req->req.length) { 528 if (req->req.length) {
507 if (copy_to_user(int2ptr(req->req.recvb), req->data, 529 if (copy_to_user(int2ptr(req->req.recvb), req->data,
508 req->req.length)) { 530 req->req.length)) {
@@ -1752,6 +1774,7 @@ static int arm_register(struct file_info *fi, struct pending_request *req)
1752 addr->notification_options |= addr->client_transactions; 1774 addr->notification_options |= addr->client_transactions;
1753 addr->recvb = req->req.recvb; 1775 addr->recvb = req->req.recvb;
1754 addr->rec_length = (u16) ((req->req.misc >> 16) & 0xFFFF); 1776 addr->rec_length = (u16) ((req->req.misc >> 16) & 0xFFFF);
1777
1755 spin_lock_irqsave(&host_info_lock, flags); 1778 spin_lock_irqsave(&host_info_lock, flags);
1756 hi = find_host_info(fi->host); 1779 hi = find_host_info(fi->host);
1757 same_host = 0; 1780 same_host = 0;
@@ -1777,9 +1800,9 @@ static int arm_register(struct file_info *fi, struct pending_request *req)
1777 } 1800 }
1778 if (same_host) { 1801 if (same_host) {
1779 /* addressrange occupied by same host */ 1802 /* addressrange occupied by same host */
1803 spin_unlock_irqrestore(&host_info_lock, flags);
1780 vfree(addr->addr_space_buffer); 1804 vfree(addr->addr_space_buffer);
1781 kfree(addr); 1805 kfree(addr);
1782 spin_unlock_irqrestore(&host_info_lock, flags);
1783 return (-EALREADY); 1806 return (-EALREADY);
1784 } 1807 }
1785 /* another host with valid address-entry containing same addressrange */ 1808 /* another host with valid address-entry containing same addressrange */
@@ -1807,6 +1830,8 @@ static int arm_register(struct file_info *fi, struct pending_request *req)
1807 } 1830 }
1808 } 1831 }
1809 } 1832 }
1833 spin_unlock_irqrestore(&host_info_lock, flags);
1834
1810 if (another_host) { 1835 if (another_host) {
1811 DBGMSG("another hosts entry is valid -> SUCCESS"); 1836 DBGMSG("another hosts entry is valid -> SUCCESS");
1812 if (copy_to_user(int2ptr(req->req.recvb), 1837 if (copy_to_user(int2ptr(req->req.recvb),
@@ -1815,11 +1840,11 @@ static int arm_register(struct file_info *fi, struct pending_request *req)
1815 " address-range-entry is invalid -> EFAULT !!!\n"); 1840 " address-range-entry is invalid -> EFAULT !!!\n");
1816 vfree(addr->addr_space_buffer); 1841 vfree(addr->addr_space_buffer);
1817 kfree(addr); 1842 kfree(addr);
1818 spin_unlock_irqrestore(&host_info_lock, flags);
1819 return (-EFAULT); 1843 return (-EFAULT);
1820 } 1844 }
1821 free_pending_request(req); /* immediate success or fail */ 1845 free_pending_request(req); /* immediate success or fail */
1822 /* INSERT ENTRY */ 1846 /* INSERT ENTRY */
1847 spin_lock_irqsave(&host_info_lock, flags);
1823 list_add_tail(&addr->addr_list, &fi->addr_list); 1848 list_add_tail(&addr->addr_list, &fi->addr_list);
1824 spin_unlock_irqrestore(&host_info_lock, flags); 1849 spin_unlock_irqrestore(&host_info_lock, flags);
1825 return sizeof(struct raw1394_request); 1850 return sizeof(struct raw1394_request);
@@ -1830,15 +1855,15 @@ static int arm_register(struct file_info *fi, struct pending_request *req)
1830 req->req.address + req->req.length); 1855 req->req.address + req->req.length);
1831 if (retval) { 1856 if (retval) {
1832 /* INSERT ENTRY */ 1857 /* INSERT ENTRY */
1858 spin_lock_irqsave(&host_info_lock, flags);
1833 list_add_tail(&addr->addr_list, &fi->addr_list); 1859 list_add_tail(&addr->addr_list, &fi->addr_list);
1860 spin_unlock_irqrestore(&host_info_lock, flags);
1834 } else { 1861 } else {
1835 DBGMSG("arm_register failed errno: %d \n", retval); 1862 DBGMSG("arm_register failed errno: %d \n", retval);
1836 vfree(addr->addr_space_buffer); 1863 vfree(addr->addr_space_buffer);
1837 kfree(addr); 1864 kfree(addr);
1838 spin_unlock_irqrestore(&host_info_lock, flags);
1839 return (-EALREADY); 1865 return (-EALREADY);
1840 } 1866 }
1841 spin_unlock_irqrestore(&host_info_lock, flags);
1842 free_pending_request(req); /* immediate success or fail */ 1867 free_pending_request(req); /* immediate success or fail */
1843 return sizeof(struct raw1394_request); 1868 return sizeof(struct raw1394_request);
1844} 1869}
@@ -1904,10 +1929,10 @@ static int arm_unregister(struct file_info *fi, struct pending_request *req)
1904 if (another_host) { 1929 if (another_host) {
1905 DBGMSG("delete entry from list -> success"); 1930 DBGMSG("delete entry from list -> success");
1906 list_del(&addr->addr_list); 1931 list_del(&addr->addr_list);
1932 spin_unlock_irqrestore(&host_info_lock, flags);
1907 vfree(addr->addr_space_buffer); 1933 vfree(addr->addr_space_buffer);
1908 kfree(addr); 1934 kfree(addr);
1909 free_pending_request(req); /* immediate success or fail */ 1935 free_pending_request(req); /* immediate success or fail */
1910 spin_unlock_irqrestore(&host_info_lock, flags);
1911 return sizeof(struct raw1394_request); 1936 return sizeof(struct raw1394_request);
1912 } 1937 }
1913 retval = 1938 retval =
@@ -1949,23 +1974,19 @@ static int arm_get_buf(struct file_info *fi, struct pending_request *req)
1949 (arm_addr->end > req->req.address)) { 1974 (arm_addr->end > req->req.address)) {
1950 if (req->req.address + req->req.length <= arm_addr->end) { 1975 if (req->req.address + req->req.length <= arm_addr->end) {
1951 offset = req->req.address - arm_addr->start; 1976 offset = req->req.address - arm_addr->start;
1977 spin_unlock_irqrestore(&host_info_lock, flags);
1952 1978
1953 DBGMSG 1979 DBGMSG
1954 ("arm_get_buf copy_to_user( %08X, %p, %u )", 1980 ("arm_get_buf copy_to_user( %08X, %p, %u )",
1955 (u32) req->req.recvb, 1981 (u32) req->req.recvb,
1956 arm_addr->addr_space_buffer + offset, 1982 arm_addr->addr_space_buffer + offset,
1957 (u32) req->req.length); 1983 (u32) req->req.length);
1958
1959 if (copy_to_user 1984 if (copy_to_user
1960 (int2ptr(req->req.recvb), 1985 (int2ptr(req->req.recvb),
1961 arm_addr->addr_space_buffer + offset, 1986 arm_addr->addr_space_buffer + offset,
1962 req->req.length)) { 1987 req->req.length))
1963 spin_unlock_irqrestore(&host_info_lock,
1964 flags);
1965 return (-EFAULT); 1988 return (-EFAULT);
1966 }
1967 1989
1968 spin_unlock_irqrestore(&host_info_lock, flags);
1969 /* We have to free the request, because we 1990 /* We have to free the request, because we
1970 * queue no response, and therefore nobody 1991 * queue no response, and therefore nobody
1971 * will free it. */ 1992 * will free it. */
@@ -2005,24 +2026,23 @@ static int arm_set_buf(struct file_info *fi, struct pending_request *req)
2005 (arm_addr->end > req->req.address)) { 2026 (arm_addr->end > req->req.address)) {
2006 if (req->req.address + req->req.length <= arm_addr->end) { 2027 if (req->req.address + req->req.length <= arm_addr->end) {
2007 offset = req->req.address - arm_addr->start; 2028 offset = req->req.address - arm_addr->start;
2029 spin_unlock_irqrestore(&host_info_lock, flags);
2008 2030
2009 DBGMSG 2031 DBGMSG
2010 ("arm_set_buf copy_from_user( %p, %08X, %u )", 2032 ("arm_set_buf copy_from_user( %p, %08X, %u )",
2011 arm_addr->addr_space_buffer + offset, 2033 arm_addr->addr_space_buffer + offset,
2012 (u32) req->req.sendb, 2034 (u32) req->req.sendb,
2013 (u32) req->req.length); 2035 (u32) req->req.length);
2014
2015 if (copy_from_user 2036 if (copy_from_user
2016 (arm_addr->addr_space_buffer + offset, 2037 (arm_addr->addr_space_buffer + offset,
2017 int2ptr(req->req.sendb), 2038 int2ptr(req->req.sendb),
2018 req->req.length)) { 2039 req->req.length))
2019 spin_unlock_irqrestore(&host_info_lock,
2020 flags);
2021 return (-EFAULT); 2040 return (-EFAULT);
2022 }
2023 2041
2024 spin_unlock_irqrestore(&host_info_lock, flags); 2042 /* We have to free the request, because we
2025 free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */ 2043 * queue no response, and therefore nobody
2044 * will free it. */
2045 free_pending_request(req);
2026 return sizeof(struct raw1394_request); 2046 return sizeof(struct raw1394_request);
2027 } else { 2047 } else {
2028 DBGMSG("arm_set_buf request exceeded mapping"); 2048 DBGMSG("arm_set_buf request exceeded mapping");
@@ -2744,7 +2764,7 @@ static unsigned int raw1394_poll(struct file *file, poll_table * pt)
2744 unsigned int mask = POLLOUT | POLLWRNORM; 2764 unsigned int mask = POLLOUT | POLLWRNORM;
2745 unsigned long flags; 2765 unsigned long flags;
2746 2766
2747 poll_wait(file, &fi->poll_wait_complete, pt); 2767 poll_wait(file, &fi->wait_complete, pt);
2748 2768
2749 spin_lock_irqsave(&fi->reqlists_lock, flags); 2769 spin_lock_irqsave(&fi->reqlists_lock, flags);
2750 if (!list_empty(&fi->req_complete)) { 2770 if (!list_empty(&fi->req_complete)) {
@@ -2769,9 +2789,8 @@ static int raw1394_open(struct inode *inode, struct file *file)
2769 fi->state = opened; 2789 fi->state = opened;
2770 INIT_LIST_HEAD(&fi->req_pending); 2790 INIT_LIST_HEAD(&fi->req_pending);
2771 INIT_LIST_HEAD(&fi->req_complete); 2791 INIT_LIST_HEAD(&fi->req_complete);
2772 sema_init(&fi->complete_sem, 0);
2773 spin_lock_init(&fi->reqlists_lock); 2792 spin_lock_init(&fi->reqlists_lock);
2774 init_waitqueue_head(&fi->poll_wait_complete); 2793 init_waitqueue_head(&fi->wait_complete);
2775 INIT_LIST_HEAD(&fi->addr_list); 2794 INIT_LIST_HEAD(&fi->addr_list);
2776 2795
2777 file->private_data = fi; 2796 file->private_data = fi;
@@ -2784,7 +2803,7 @@ static int raw1394_release(struct inode *inode, struct file *file)
2784 struct file_info *fi = file->private_data; 2803 struct file_info *fi = file->private_data;
2785 struct list_head *lh; 2804 struct list_head *lh;
2786 struct pending_request *req; 2805 struct pending_request *req;
2787 int done = 0, i, fail = 0; 2806 int i, fail;
2788 int retval = 0; 2807 int retval = 0;
2789 struct list_head *entry; 2808 struct list_head *entry;
2790 struct arm_addr *addr = NULL; 2809 struct arm_addr *addr = NULL;
@@ -2864,25 +2883,28 @@ static int raw1394_release(struct inode *inode, struct file *file)
2864 "error(s) occurred \n"); 2883 "error(s) occurred \n");
2865 } 2884 }
2866 2885
2867 while (!done) { 2886 for (;;) {
2887 /* This locked section guarantees that neither
2888 * complete nor pending requests exist once i!=0 */
2868 spin_lock_irqsave(&fi->reqlists_lock, flags); 2889 spin_lock_irqsave(&fi->reqlists_lock, flags);
2869 2890 while ((req = __next_complete_req(fi)))
2870 while (!list_empty(&fi->req_complete)) {
2871 lh = fi->req_complete.next;
2872 list_del(lh);
2873
2874 req = list_entry(lh, struct pending_request, list);
2875
2876 free_pending_request(req); 2891 free_pending_request(req);
2877 }
2878
2879 if (list_empty(&fi->req_pending))
2880 done = 1;
2881 2892
2893 i = list_empty(&fi->req_pending);
2882 spin_unlock_irqrestore(&fi->reqlists_lock, flags); 2894 spin_unlock_irqrestore(&fi->reqlists_lock, flags);
2883 2895
2884 if (!done) 2896 if (i)
2885 down_interruptible(&fi->complete_sem); 2897 break;
2898 /*
2899 * Sleep until more requests can be freed.
2900 *
2901 * NB: We call the macro wait_event() with a condition argument
2902 * with side effect. This is only possible because the side
2903 * effect does not occur until the condition became true, and
2904 * wait_event() won't evaluate the condition again after that.
2905 */
2906 wait_event(fi->wait_complete, (req = next_complete_req(fi)));
2907 free_pending_request(req);
2886 } 2908 }
2887 2909
2888 /* Remove any sub-trees left by user space programs */ 2910 /* Remove any sub-trees left by user space programs */
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index b08755e2e68f..6986ac188281 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -38,31 +38,36 @@
38 * but the code needs additional debugging. 38 * but the code needs additional debugging.
39 */ 39 */
40 40
41#include <linux/blkdev.h>
42#include <linux/compiler.h>
43#include <linux/delay.h>
44#include <linux/device.h>
45#include <linux/dma-mapping.h>
46#include <linux/gfp.h>
47#include <linux/init.h>
41#include <linux/kernel.h> 48#include <linux/kernel.h>
42#include <linux/list.h> 49#include <linux/list.h>
43#include <linux/string.h>
44#include <linux/stringify.h>
45#include <linux/slab.h>
46#include <linux/interrupt.h>
47#include <linux/fs.h>
48#include <linux/poll.h>
49#include <linux/module.h> 50#include <linux/module.h>
50#include <linux/moduleparam.h> 51#include <linux/moduleparam.h>
51#include <linux/types.h>
52#include <linux/delay.h>
53#include <linux/sched.h>
54#include <linux/blkdev.h>
55#include <linux/smp_lock.h>
56#include <linux/init.h>
57#include <linux/pci.h> 52#include <linux/pci.h>
53#include <linux/slab.h>
54#include <linux/spinlock.h>
55#include <linux/stat.h>
56#include <linux/string.h>
57#include <linux/stringify.h>
58#include <linux/types.h>
59#include <linux/wait.h>
58 60
59#include <asm/current.h>
60#include <asm/uaccess.h>
61#include <asm/io.h>
62#include <asm/byteorder.h> 61#include <asm/byteorder.h>
63#include <asm/atomic.h> 62#include <asm/errno.h>
64#include <asm/system.h> 63#include <asm/param.h>
65#include <asm/scatterlist.h> 64#include <asm/scatterlist.h>
65#include <asm/system.h>
66#include <asm/types.h>
67
68#ifdef CONFIG_IEEE1394_SBP2_PHYS_DMA
69#include <asm/io.h> /* for bus_to_virt */
70#endif
66 71
67#include <scsi/scsi.h> 72#include <scsi/scsi.h>
68#include <scsi/scsi_cmnd.h> 73#include <scsi/scsi_cmnd.h>
@@ -71,13 +76,14 @@
71#include <scsi/scsi_host.h> 76#include <scsi/scsi_host.h>
72 77
73#include "csr1212.h" 78#include "csr1212.h"
79#include "highlevel.h"
80#include "hosts.h"
74#include "ieee1394.h" 81#include "ieee1394.h"
75#include "ieee1394_types.h"
76#include "ieee1394_core.h" 82#include "ieee1394_core.h"
77#include "nodemgr.h" 83#include "ieee1394_hotplug.h"
78#include "hosts.h"
79#include "highlevel.h"
80#include "ieee1394_transactions.h" 84#include "ieee1394_transactions.h"
85#include "ieee1394_types.h"
86#include "nodemgr.h"
81#include "sbp2.h" 87#include "sbp2.h"
82 88
83/* 89/*
@@ -173,11 +179,6 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
173 ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE) 179 ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
174 ", or a combination)"); 180 ", or a combination)");
175 181
176/* legacy parameter */
177static int force_inquiry_hack;
178module_param(force_inquiry_hack, int, 0644);
179MODULE_PARM_DESC(force_inquiry_hack, "Deprecated, use 'workarounds'");
180
181/* 182/*
182 * Export information about protocols/devices supported by this driver. 183 * Export information about protocols/devices supported by this driver.
183 */ 184 */
@@ -208,9 +209,9 @@ static u32 global_outstanding_command_orbs = 0;
208#define outstanding_orb_incr global_outstanding_command_orbs++ 209#define outstanding_orb_incr global_outstanding_command_orbs++
209#define outstanding_orb_decr global_outstanding_command_orbs-- 210#define outstanding_orb_decr global_outstanding_command_orbs--
210#else 211#else
211#define SBP2_ORB_DEBUG(fmt, args...) 212#define SBP2_ORB_DEBUG(fmt, args...) do {} while (0)
212#define outstanding_orb_incr 213#define outstanding_orb_incr do {} while (0)
213#define outstanding_orb_decr 214#define outstanding_orb_decr do {} while (0)
214#endif 215#endif
215 216
216#ifdef CONFIG_IEEE1394_SBP2_DEBUG_DMA 217#ifdef CONFIG_IEEE1394_SBP2_DEBUG_DMA
@@ -222,8 +223,8 @@ static u32 global_outstanding_command_orbs = 0;
222 --global_outstanding_dmas, ## args) 223 --global_outstanding_dmas, ## args)
223static u32 global_outstanding_dmas = 0; 224static u32 global_outstanding_dmas = 0;
224#else 225#else
225#define SBP2_DMA_ALLOC(fmt, args...) 226#define SBP2_DMA_ALLOC(fmt, args...) do {} while (0)
226#define SBP2_DMA_FREE(fmt, args...) 227#define SBP2_DMA_FREE(fmt, args...) do {} while (0)
227#endif 228#endif
228 229
229#if CONFIG_IEEE1394_SBP2_DEBUG >= 2 230#if CONFIG_IEEE1394_SBP2_DEBUG >= 2
@@ -237,7 +238,7 @@ static u32 global_outstanding_dmas = 0;
237#define SBP2_NOTICE(fmt, args...) HPSB_NOTICE("sbp2: "fmt, ## args) 238#define SBP2_NOTICE(fmt, args...) HPSB_NOTICE("sbp2: "fmt, ## args)
238#define SBP2_WARN(fmt, args...) HPSB_WARN("sbp2: "fmt, ## args) 239#define SBP2_WARN(fmt, args...) HPSB_WARN("sbp2: "fmt, ## args)
239#else 240#else
240#define SBP2_DEBUG(fmt, args...) 241#define SBP2_DEBUG(fmt, args...) do {} while (0)
241#define SBP2_INFO(fmt, args...) HPSB_INFO("sbp2: "fmt, ## args) 242#define SBP2_INFO(fmt, args...) HPSB_INFO("sbp2: "fmt, ## args)
242#define SBP2_NOTICE(fmt, args...) HPSB_NOTICE("sbp2: "fmt, ## args) 243#define SBP2_NOTICE(fmt, args...) HPSB_NOTICE("sbp2: "fmt, ## args)
243#define SBP2_WARN(fmt, args...) HPSB_WARN("sbp2: "fmt, ## args) 244#define SBP2_WARN(fmt, args...) HPSB_WARN("sbp2: "fmt, ## args)
@@ -356,7 +357,7 @@ static const struct {
356/* 357/*
357 * Converts a buffer from be32 to cpu byte ordering. Length is in bytes. 358 * Converts a buffer from be32 to cpu byte ordering. Length is in bytes.
358 */ 359 */
359static __inline__ void sbp2util_be32_to_cpu_buffer(void *buffer, int length) 360static inline void sbp2util_be32_to_cpu_buffer(void *buffer, int length)
360{ 361{
361 u32 *temp = buffer; 362 u32 *temp = buffer;
362 363
@@ -369,7 +370,7 @@ static __inline__ void sbp2util_be32_to_cpu_buffer(void *buffer, int length)
369/* 370/*
370 * Converts a buffer from cpu to be32 byte ordering. Length is in bytes. 371 * Converts a buffer from cpu to be32 byte ordering. Length is in bytes.
371 */ 372 */
372static __inline__ void sbp2util_cpu_to_be32_buffer(void *buffer, int length) 373static inline void sbp2util_cpu_to_be32_buffer(void *buffer, int length)
373{ 374{
374 u32 *temp = buffer; 375 u32 *temp = buffer;
375 376
@@ -380,8 +381,8 @@ static __inline__ void sbp2util_cpu_to_be32_buffer(void *buffer, int length)
380} 381}
381#else /* BIG_ENDIAN */ 382#else /* BIG_ENDIAN */
382/* Why waste the cpu cycles? */ 383/* Why waste the cpu cycles? */
383#define sbp2util_be32_to_cpu_buffer(x,y) 384#define sbp2util_be32_to_cpu_buffer(x,y) do {} while (0)
384#define sbp2util_cpu_to_be32_buffer(x,y) 385#define sbp2util_cpu_to_be32_buffer(x,y) do {} while (0)
385#endif 386#endif
386 387
387#ifdef CONFIG_IEEE1394_SBP2_PACKET_DUMP 388#ifdef CONFIG_IEEE1394_SBP2_PACKET_DUMP
@@ -417,24 +418,26 @@ static void sbp2util_packet_dump(void *buffer, int length, char *dump_name,
417 return; 418 return;
418} 419}
419#else 420#else
420#define sbp2util_packet_dump(w,x,y,z) 421#define sbp2util_packet_dump(w,x,y,z) do {} while (0)
421#endif 422#endif
422 423
424static DECLARE_WAIT_QUEUE_HEAD(access_wq);
425
423/* 426/*
424 * Goofy routine that basically does a down_timeout function. 427 * Waits for completion of an SBP-2 access request.
428 * Returns nonzero if timed out or prematurely interrupted.
425 */ 429 */
426static int sbp2util_down_timeout(atomic_t *done, int timeout) 430static int sbp2util_access_timeout(struct scsi_id_instance_data *scsi_id,
431 int timeout)
427{ 432{
428 int i; 433 long leftover = wait_event_interruptible_timeout(
434 access_wq, scsi_id->access_complete, timeout);
429 435
430 for (i = timeout; (i > 0 && atomic_read(done) == 0); i-= HZ/10) { 436 scsi_id->access_complete = 0;
431 if (msleep_interruptible(100)) /* 100ms */ 437 return leftover <= 0;
432 return 1;
433 }
434 return (i > 0) ? 0 : 1;
435} 438}
436 439
437/* Free's an allocated packet */ 440/* Frees an allocated packet */
438static void sbp2_free_packet(struct hpsb_packet *packet) 441static void sbp2_free_packet(struct hpsb_packet *packet)
439{ 442{
440 hpsb_free_tlabel(packet); 443 hpsb_free_tlabel(packet);
@@ -468,6 +471,44 @@ static int sbp2util_node_write_no_wait(struct node_entry *ne, u64 addr,
468 return 0; 471 return 0;
469} 472}
470 473
474static void sbp2util_notify_fetch_agent(struct scsi_id_instance_data *scsi_id,
475 u64 offset, quadlet_t *data, size_t len)
476{
477 /*
478 * There is a small window after a bus reset within which the node
479 * entry's generation is current but the reconnect wasn't completed.
480 */
481 if (unlikely(atomic_read(&scsi_id->state) == SBP2LU_STATE_IN_RESET))
482 return;
483
484 if (hpsb_node_write(scsi_id->ne,
485 scsi_id->sbp2_command_block_agent_addr + offset,
486 data, len))
487 SBP2_ERR("sbp2util_notify_fetch_agent failed.");
488 /*
489 * Now accept new SCSI commands, unless a bus reset happended during
490 * hpsb_node_write.
491 */
492 if (likely(atomic_read(&scsi_id->state) != SBP2LU_STATE_IN_RESET))
493 scsi_unblock_requests(scsi_id->scsi_host);
494}
495
496static void sbp2util_write_orb_pointer(void *p)
497{
498 quadlet_t data[2];
499
500 data[0] = ORB_SET_NODE_ID(
501 ((struct scsi_id_instance_data *)p)->hi->host->node_id);
502 data[1] = ((struct scsi_id_instance_data *)p)->last_orb_dma;
503 sbp2util_cpu_to_be32_buffer(data, 8);
504 sbp2util_notify_fetch_agent(p, SBP2_ORB_POINTER_OFFSET, data, 8);
505}
506
507static void sbp2util_write_doorbell(void *p)
508{
509 sbp2util_notify_fetch_agent(p, SBP2_DOORBELL_OFFSET, NULL, 4);
510}
511
471/* 512/*
472 * This function is called to create a pool of command orbs used for 513 * This function is called to create a pool of command orbs used for
473 * command processing. It is called when a new sbp2 device is detected. 514 * command processing. It is called when a new sbp2 device is detected.
@@ -492,7 +533,7 @@ static int sbp2util_create_command_orb_pool(struct scsi_id_instance_data *scsi_i
492 command->command_orb_dma = 533 command->command_orb_dma =
493 pci_map_single(hi->host->pdev, &command->command_orb, 534 pci_map_single(hi->host->pdev, &command->command_orb,
494 sizeof(struct sbp2_command_orb), 535 sizeof(struct sbp2_command_orb),
495 PCI_DMA_BIDIRECTIONAL); 536 PCI_DMA_TODEVICE);
496 SBP2_DMA_ALLOC("single command orb DMA"); 537 SBP2_DMA_ALLOC("single command orb DMA");
497 command->sge_dma = 538 command->sge_dma =
498 pci_map_single(hi->host->pdev, 539 pci_map_single(hi->host->pdev,
@@ -525,7 +566,7 @@ static void sbp2util_remove_command_orb_pool(struct scsi_id_instance_data *scsi_
525 /* Release our generic DMA's */ 566 /* Release our generic DMA's */
526 pci_unmap_single(host->pdev, command->command_orb_dma, 567 pci_unmap_single(host->pdev, command->command_orb_dma,
527 sizeof(struct sbp2_command_orb), 568 sizeof(struct sbp2_command_orb),
528 PCI_DMA_BIDIRECTIONAL); 569 PCI_DMA_TODEVICE);
529 SBP2_DMA_FREE("single command orb DMA"); 570 SBP2_DMA_FREE("single command orb DMA");
530 pci_unmap_single(host->pdev, command->sge_dma, 571 pci_unmap_single(host->pdev, command->sge_dma,
531 sizeof(command->scatter_gather_element), 572 sizeof(command->scatter_gather_element),
@@ -715,6 +756,7 @@ static int sbp2_remove(struct device *dev)
715 sbp2scsi_complete_all_commands(scsi_id, DID_NO_CONNECT); 756 sbp2scsi_complete_all_commands(scsi_id, DID_NO_CONNECT);
716 /* scsi_remove_device() will trigger shutdown functions of SCSI 757 /* scsi_remove_device() will trigger shutdown functions of SCSI
717 * highlevel drivers which would deadlock if blocked. */ 758 * highlevel drivers which would deadlock if blocked. */
759 atomic_set(&scsi_id->state, SBP2LU_STATE_IN_SHUTDOWN);
718 scsi_unblock_requests(scsi_id->scsi_host); 760 scsi_unblock_requests(scsi_id->scsi_host);
719 } 761 }
720 sdev = scsi_id->sdev; 762 sdev = scsi_id->sdev;
@@ -766,10 +808,12 @@ static int sbp2_update(struct unit_directory *ud)
766 */ 808 */
767 sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY); 809 sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY);
768 810
769 /* Make sure we unblock requests (since this is likely after a bus 811 /* Accept new commands unless there was another bus reset in the
770 * reset). */ 812 * meantime. */
771 scsi_unblock_requests(scsi_id->scsi_host); 813 if (hpsb_node_entry_valid(scsi_id->ne)) {
772 814 atomic_set(&scsi_id->state, SBP2LU_STATE_RUNNING);
815 scsi_unblock_requests(scsi_id->scsi_host);
816 }
773 return 0; 817 return 0;
774} 818}
775 819
@@ -794,11 +838,12 @@ static struct scsi_id_instance_data *sbp2_alloc_device(struct unit_directory *ud
794 scsi_id->speed_code = IEEE1394_SPEED_100; 838 scsi_id->speed_code = IEEE1394_SPEED_100;
795 scsi_id->max_payload_size = sbp2_speedto_max_payload[IEEE1394_SPEED_100]; 839 scsi_id->max_payload_size = sbp2_speedto_max_payload[IEEE1394_SPEED_100];
796 scsi_id->status_fifo_addr = CSR1212_INVALID_ADDR_SPACE; 840 scsi_id->status_fifo_addr = CSR1212_INVALID_ADDR_SPACE;
797 atomic_set(&scsi_id->sbp2_login_complete, 0);
798 INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_inuse); 841 INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_inuse);
799 INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_completed); 842 INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_completed);
800 INIT_LIST_HEAD(&scsi_id->scsi_list); 843 INIT_LIST_HEAD(&scsi_id->scsi_list);
801 spin_lock_init(&scsi_id->sbp2_command_orb_lock); 844 spin_lock_init(&scsi_id->sbp2_command_orb_lock);
845 atomic_set(&scsi_id->state, SBP2LU_STATE_RUNNING);
846 INIT_WORK(&scsi_id->protocol_work, NULL, NULL);
802 847
803 ud->device.driver_data = scsi_id; 848 ud->device.driver_data = scsi_id;
804 849
@@ -881,11 +926,14 @@ static void sbp2_host_reset(struct hpsb_host *host)
881 struct scsi_id_instance_data *scsi_id; 926 struct scsi_id_instance_data *scsi_id;
882 927
883 hi = hpsb_get_hostinfo(&sbp2_highlevel, host); 928 hi = hpsb_get_hostinfo(&sbp2_highlevel, host);
884 929 if (!hi)
885 if (hi) { 930 return;
886 list_for_each_entry(scsi_id, &hi->scsi_ids, scsi_list) 931 list_for_each_entry(scsi_id, &hi->scsi_ids, scsi_list)
932 if (likely(atomic_read(&scsi_id->state) !=
933 SBP2LU_STATE_IN_SHUTDOWN)) {
934 atomic_set(&scsi_id->state, SBP2LU_STATE_IN_RESET);
887 scsi_block_requests(scsi_id->scsi_host); 935 scsi_block_requests(scsi_id->scsi_host);
888 } 936 }
889} 937}
890 938
891/* 939/*
@@ -970,8 +1018,7 @@ static int sbp2_start_device(struct scsi_id_instance_data *scsi_id)
970 * connected to the sbp2 device being removed. That host would 1018 * connected to the sbp2 device being removed. That host would
971 * have a certain amount of time to relogin before the sbp2 device 1019 * have a certain amount of time to relogin before the sbp2 device
972 * allows someone else to login instead. One second makes sense. */ 1020 * allows someone else to login instead. One second makes sense. */
973 msleep_interruptible(1000); 1021 if (msleep_interruptible(1000)) {
974 if (signal_pending(current)) {
975 sbp2_remove_device(scsi_id); 1022 sbp2_remove_device(scsi_id);
976 return -EINTR; 1023 return -EINTR;
977 } 1024 }
@@ -1036,7 +1083,7 @@ static void sbp2_remove_device(struct scsi_id_instance_data *scsi_id)
1036 scsi_remove_host(scsi_id->scsi_host); 1083 scsi_remove_host(scsi_id->scsi_host);
1037 scsi_host_put(scsi_id->scsi_host); 1084 scsi_host_put(scsi_id->scsi_host);
1038 } 1085 }
1039 1086 flush_scheduled_work();
1040 sbp2util_remove_command_orb_pool(scsi_id); 1087 sbp2util_remove_command_orb_pool(scsi_id);
1041 1088
1042 list_del(&scsi_id->scsi_list); 1089 list_del(&scsi_id->scsi_list);
@@ -1182,17 +1229,14 @@ static int sbp2_query_logins(struct scsi_id_instance_data *scsi_id)
1182 "sbp2 query logins orb", scsi_id->query_logins_orb_dma); 1229 "sbp2 query logins orb", scsi_id->query_logins_orb_dma);
1183 1230
1184 memset(scsi_id->query_logins_response, 0, sizeof(struct sbp2_query_logins_response)); 1231 memset(scsi_id->query_logins_response, 0, sizeof(struct sbp2_query_logins_response));
1185 memset(&scsi_id->status_block, 0, sizeof(struct sbp2_status_block));
1186 1232
1187 data[0] = ORB_SET_NODE_ID(hi->host->node_id); 1233 data[0] = ORB_SET_NODE_ID(hi->host->node_id);
1188 data[1] = scsi_id->query_logins_orb_dma; 1234 data[1] = scsi_id->query_logins_orb_dma;
1189 sbp2util_cpu_to_be32_buffer(data, 8); 1235 sbp2util_cpu_to_be32_buffer(data, 8);
1190 1236
1191 atomic_set(&scsi_id->sbp2_login_complete, 0);
1192
1193 hpsb_node_write(scsi_id->ne, scsi_id->sbp2_management_agent_addr, data, 8); 1237 hpsb_node_write(scsi_id->ne, scsi_id->sbp2_management_agent_addr, data, 8);
1194 1238
1195 if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, 2*HZ)) { 1239 if (sbp2util_access_timeout(scsi_id, 2*HZ)) {
1196 SBP2_INFO("Error querying logins to SBP-2 device - timed out"); 1240 SBP2_INFO("Error querying logins to SBP-2 device - timed out");
1197 return -EIO; 1241 return -EIO;
1198 } 1242 }
@@ -1202,11 +1246,8 @@ static int sbp2_query_logins(struct scsi_id_instance_data *scsi_id)
1202 return -EIO; 1246 return -EIO;
1203 } 1247 }
1204 1248
1205 if (STATUS_GET_RESP(scsi_id->status_block.ORB_offset_hi_misc) || 1249 if (STATUS_TEST_RDS(scsi_id->status_block.ORB_offset_hi_misc)) {
1206 STATUS_GET_DEAD_BIT(scsi_id->status_block.ORB_offset_hi_misc) || 1250 SBP2_INFO("Error querying logins to SBP-2 device - failed");
1207 STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
1208
1209 SBP2_INFO("Error querying logins to SBP-2 device - timed out");
1210 return -EIO; 1251 return -EIO;
1211 } 1252 }
1212 1253
@@ -1278,21 +1319,18 @@ static int sbp2_login_device(struct scsi_id_instance_data *scsi_id)
1278 "sbp2 login orb", scsi_id->login_orb_dma); 1319 "sbp2 login orb", scsi_id->login_orb_dma);
1279 1320
1280 memset(scsi_id->login_response, 0, sizeof(struct sbp2_login_response)); 1321 memset(scsi_id->login_response, 0, sizeof(struct sbp2_login_response));
1281 memset(&scsi_id->status_block, 0, sizeof(struct sbp2_status_block));
1282 1322
1283 data[0] = ORB_SET_NODE_ID(hi->host->node_id); 1323 data[0] = ORB_SET_NODE_ID(hi->host->node_id);
1284 data[1] = scsi_id->login_orb_dma; 1324 data[1] = scsi_id->login_orb_dma;
1285 sbp2util_cpu_to_be32_buffer(data, 8); 1325 sbp2util_cpu_to_be32_buffer(data, 8);
1286 1326
1287 atomic_set(&scsi_id->sbp2_login_complete, 0);
1288
1289 hpsb_node_write(scsi_id->ne, scsi_id->sbp2_management_agent_addr, data, 8); 1327 hpsb_node_write(scsi_id->ne, scsi_id->sbp2_management_agent_addr, data, 8);
1290 1328
1291 /* 1329 /*
1292 * Wait for login status (up to 20 seconds)... 1330 * Wait for login status (up to 20 seconds)...
1293 */ 1331 */
1294 if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, 20*HZ)) { 1332 if (sbp2util_access_timeout(scsi_id, 20*HZ)) {
1295 SBP2_ERR("Error logging into SBP-2 device - login timed-out"); 1333 SBP2_ERR("Error logging into SBP-2 device - timed out");
1296 return -EIO; 1334 return -EIO;
1297 } 1335 }
1298 1336
@@ -1300,18 +1338,12 @@ static int sbp2_login_device(struct scsi_id_instance_data *scsi_id)
1300 * Sanity. Make sure status returned matches login orb. 1338 * Sanity. Make sure status returned matches login orb.
1301 */ 1339 */
1302 if (scsi_id->status_block.ORB_offset_lo != scsi_id->login_orb_dma) { 1340 if (scsi_id->status_block.ORB_offset_lo != scsi_id->login_orb_dma) {
1303 SBP2_ERR("Error logging into SBP-2 device - login timed-out"); 1341 SBP2_ERR("Error logging into SBP-2 device - timed out");
1304 return -EIO; 1342 return -EIO;
1305 } 1343 }
1306 1344
1307 /* 1345 if (STATUS_TEST_RDS(scsi_id->status_block.ORB_offset_hi_misc)) {
1308 * Check status 1346 SBP2_ERR("Error logging into SBP-2 device - failed");
1309 */
1310 if (STATUS_GET_RESP(scsi_id->status_block.ORB_offset_hi_misc) ||
1311 STATUS_GET_DEAD_BIT(scsi_id->status_block.ORB_offset_hi_misc) ||
1312 STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
1313
1314 SBP2_ERR("Error logging into SBP-2 device - login failed");
1315 return -EIO; 1347 return -EIO;
1316 } 1348 }
1317 1349
@@ -1335,9 +1367,7 @@ static int sbp2_login_device(struct scsi_id_instance_data *scsi_id)
1335 scsi_id->sbp2_command_block_agent_addr &= 0x0000ffffffffffffULL; 1367 scsi_id->sbp2_command_block_agent_addr &= 0x0000ffffffffffffULL;
1336 1368
1337 SBP2_INFO("Logged into SBP-2 device"); 1369 SBP2_INFO("Logged into SBP-2 device");
1338
1339 return 0; 1370 return 0;
1340
1341} 1371}
1342 1372
1343/* 1373/*
@@ -1387,21 +1417,17 @@ static int sbp2_logout_device(struct scsi_id_instance_data *scsi_id)
1387 data[1] = scsi_id->logout_orb_dma; 1417 data[1] = scsi_id->logout_orb_dma;
1388 sbp2util_cpu_to_be32_buffer(data, 8); 1418 sbp2util_cpu_to_be32_buffer(data, 8);
1389 1419
1390 atomic_set(&scsi_id->sbp2_login_complete, 0);
1391
1392 error = hpsb_node_write(scsi_id->ne, 1420 error = hpsb_node_write(scsi_id->ne,
1393 scsi_id->sbp2_management_agent_addr, data, 8); 1421 scsi_id->sbp2_management_agent_addr, data, 8);
1394 if (error) 1422 if (error)
1395 return error; 1423 return error;
1396 1424
1397 /* Wait for device to logout...1 second. */ 1425 /* Wait for device to logout...1 second. */
1398 if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, HZ)) 1426 if (sbp2util_access_timeout(scsi_id, HZ))
1399 return -EIO; 1427 return -EIO;
1400 1428
1401 SBP2_INFO("Logged out of SBP-2 device"); 1429 SBP2_INFO("Logged out of SBP-2 device");
1402
1403 return 0; 1430 return 0;
1404
1405} 1431}
1406 1432
1407/* 1433/*
@@ -1445,20 +1471,10 @@ static int sbp2_reconnect_device(struct scsi_id_instance_data *scsi_id)
1445 sbp2util_packet_dump(scsi_id->reconnect_orb, sizeof(struct sbp2_reconnect_orb), 1471 sbp2util_packet_dump(scsi_id->reconnect_orb, sizeof(struct sbp2_reconnect_orb),
1446 "sbp2 reconnect orb", scsi_id->reconnect_orb_dma); 1472 "sbp2 reconnect orb", scsi_id->reconnect_orb_dma);
1447 1473
1448 /*
1449 * Initialize status fifo
1450 */
1451 memset(&scsi_id->status_block, 0, sizeof(struct sbp2_status_block));
1452
1453 /*
1454 * Ok, let's write to the target's management agent register
1455 */
1456 data[0] = ORB_SET_NODE_ID(hi->host->node_id); 1474 data[0] = ORB_SET_NODE_ID(hi->host->node_id);
1457 data[1] = scsi_id->reconnect_orb_dma; 1475 data[1] = scsi_id->reconnect_orb_dma;
1458 sbp2util_cpu_to_be32_buffer(data, 8); 1476 sbp2util_cpu_to_be32_buffer(data, 8);
1459 1477
1460 atomic_set(&scsi_id->sbp2_login_complete, 0);
1461
1462 error = hpsb_node_write(scsi_id->ne, 1478 error = hpsb_node_write(scsi_id->ne,
1463 scsi_id->sbp2_management_agent_addr, data, 8); 1479 scsi_id->sbp2_management_agent_addr, data, 8);
1464 if (error) 1480 if (error)
@@ -1467,8 +1483,8 @@ static int sbp2_reconnect_device(struct scsi_id_instance_data *scsi_id)
1467 /* 1483 /*
1468 * Wait for reconnect status (up to 1 second)... 1484 * Wait for reconnect status (up to 1 second)...
1469 */ 1485 */
1470 if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, HZ)) { 1486 if (sbp2util_access_timeout(scsi_id, HZ)) {
1471 SBP2_ERR("Error reconnecting to SBP-2 device - reconnect timed-out"); 1487 SBP2_ERR("Error reconnecting to SBP-2 device - timed out");
1472 return -EIO; 1488 return -EIO;
1473 } 1489 }
1474 1490
@@ -1476,25 +1492,17 @@ static int sbp2_reconnect_device(struct scsi_id_instance_data *scsi_id)
1476 * Sanity. Make sure status returned matches reconnect orb. 1492 * Sanity. Make sure status returned matches reconnect orb.
1477 */ 1493 */
1478 if (scsi_id->status_block.ORB_offset_lo != scsi_id->reconnect_orb_dma) { 1494 if (scsi_id->status_block.ORB_offset_lo != scsi_id->reconnect_orb_dma) {
1479 SBP2_ERR("Error reconnecting to SBP-2 device - reconnect timed-out"); 1495 SBP2_ERR("Error reconnecting to SBP-2 device - timed out");
1480 return -EIO; 1496 return -EIO;
1481 } 1497 }
1482 1498
1483 /* 1499 if (STATUS_TEST_RDS(scsi_id->status_block.ORB_offset_hi_misc)) {
1484 * Check status 1500 SBP2_ERR("Error reconnecting to SBP-2 device - failed");
1485 */
1486 if (STATUS_GET_RESP(scsi_id->status_block.ORB_offset_hi_misc) ||
1487 STATUS_GET_DEAD_BIT(scsi_id->status_block.ORB_offset_hi_misc) ||
1488 STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
1489
1490 SBP2_ERR("Error reconnecting to SBP-2 device - reconnect failed");
1491 return -EIO; 1501 return -EIO;
1492 } 1502 }
1493 1503
1494 HPSB_DEBUG("Reconnected to SBP-2 device"); 1504 HPSB_DEBUG("Reconnected to SBP-2 device");
1495
1496 return 0; 1505 return 0;
1497
1498} 1506}
1499 1507
1500/* 1508/*
@@ -1592,11 +1600,6 @@ static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id,
1592 } 1600 }
1593 1601
1594 workarounds = sbp2_default_workarounds; 1602 workarounds = sbp2_default_workarounds;
1595 if (force_inquiry_hack) {
1596 SBP2_WARN("force_inquiry_hack is deprecated. "
1597 "Use parameter 'workarounds' instead.");
1598 workarounds |= SBP2_WORKAROUND_INQUIRY_36;
1599 }
1600 1603
1601 if (!(workarounds & SBP2_WORKAROUND_OVERRIDE)) 1604 if (!(workarounds & SBP2_WORKAROUND_OVERRIDE))
1602 for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) { 1605 for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) {
@@ -1705,9 +1708,14 @@ static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait)
1705 quadlet_t data; 1708 quadlet_t data;
1706 u64 addr; 1709 u64 addr;
1707 int retval; 1710 int retval;
1711 unsigned long flags;
1708 1712
1709 SBP2_DEBUG_ENTER(); 1713 SBP2_DEBUG_ENTER();
1710 1714
1715 cancel_delayed_work(&scsi_id->protocol_work);
1716 if (wait)
1717 flush_scheduled_work();
1718
1711 data = ntohl(SBP2_AGENT_RESET_DATA); 1719 data = ntohl(SBP2_AGENT_RESET_DATA);
1712 addr = scsi_id->sbp2_command_block_agent_addr + SBP2_AGENT_RESET_OFFSET; 1720 addr = scsi_id->sbp2_command_block_agent_addr + SBP2_AGENT_RESET_OFFSET;
1713 1721
@@ -1724,7 +1732,9 @@ static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait)
1724 /* 1732 /*
1725 * Need to make sure orb pointer is written on next command 1733 * Need to make sure orb pointer is written on next command
1726 */ 1734 */
1735 spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags);
1727 scsi_id->last_orb = NULL; 1736 scsi_id->last_orb = NULL;
1737 spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
1728 1738
1729 return 0; 1739 return 0;
1730} 1740}
@@ -1961,13 +1971,17 @@ static void sbp2_create_command_orb(struct scsi_id_instance_data *scsi_id,
1961/* 1971/*
1962 * This function is called in order to begin a regular SBP-2 command. 1972 * This function is called in order to begin a regular SBP-2 command.
1963 */ 1973 */
1964static int sbp2_link_orb_command(struct scsi_id_instance_data *scsi_id, 1974static void sbp2_link_orb_command(struct scsi_id_instance_data *scsi_id,
1965 struct sbp2_command_info *command) 1975 struct sbp2_command_info *command)
1966{ 1976{
1967 struct sbp2scsi_host_info *hi = scsi_id->hi; 1977 struct sbp2scsi_host_info *hi = scsi_id->hi;
1968 struct sbp2_command_orb *command_orb = &command->command_orb; 1978 struct sbp2_command_orb *command_orb = &command->command_orb;
1969 struct node_entry *ne = scsi_id->ne; 1979 struct sbp2_command_orb *last_orb;
1970 u64 addr; 1980 dma_addr_t last_orb_dma;
1981 u64 addr = scsi_id->sbp2_command_block_agent_addr;
1982 quadlet_t data[2];
1983 size_t length;
1984 unsigned long flags;
1971 1985
1972 outstanding_orb_incr; 1986 outstanding_orb_incr;
1973 SBP2_ORB_DEBUG("sending command orb %p, total orbs = %x", 1987 SBP2_ORB_DEBUG("sending command orb %p, total orbs = %x",
@@ -1975,73 +1989,70 @@ static int sbp2_link_orb_command(struct scsi_id_instance_data *scsi_id,
1975 1989
1976 pci_dma_sync_single_for_device(hi->host->pdev, command->command_orb_dma, 1990 pci_dma_sync_single_for_device(hi->host->pdev, command->command_orb_dma,
1977 sizeof(struct sbp2_command_orb), 1991 sizeof(struct sbp2_command_orb),
1978 PCI_DMA_BIDIRECTIONAL); 1992 PCI_DMA_TODEVICE);
1979 pci_dma_sync_single_for_device(hi->host->pdev, command->sge_dma, 1993 pci_dma_sync_single_for_device(hi->host->pdev, command->sge_dma,
1980 sizeof(command->scatter_gather_element), 1994 sizeof(command->scatter_gather_element),
1981 PCI_DMA_BIDIRECTIONAL); 1995 PCI_DMA_BIDIRECTIONAL);
1982 /* 1996 /*
1983 * Check to see if there are any previous orbs to use 1997 * Check to see if there are any previous orbs to use
1984 */ 1998 */
1985 if (scsi_id->last_orb == NULL) { 1999 spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags);
1986 quadlet_t data[2]; 2000 last_orb = scsi_id->last_orb;
1987 2001 last_orb_dma = scsi_id->last_orb_dma;
2002 if (!last_orb) {
1988 /* 2003 /*
1989 * Ok, let's write to the target's management agent register 2004 * last_orb == NULL means: We know that the target's fetch agent
2005 * is not active right now.
1990 */ 2006 */
1991 addr = scsi_id->sbp2_command_block_agent_addr + SBP2_ORB_POINTER_OFFSET; 2007 addr += SBP2_ORB_POINTER_OFFSET;
1992 data[0] = ORB_SET_NODE_ID(hi->host->node_id); 2008 data[0] = ORB_SET_NODE_ID(hi->host->node_id);
1993 data[1] = command->command_orb_dma; 2009 data[1] = command->command_orb_dma;
1994 sbp2util_cpu_to_be32_buffer(data, 8); 2010 sbp2util_cpu_to_be32_buffer(data, 8);
1995 2011 length = 8;
1996 SBP2_ORB_DEBUG("write command agent, command orb %p", command_orb);
1997
1998 if (sbp2util_node_write_no_wait(ne, addr, data, 8) < 0) {
1999 SBP2_ERR("sbp2util_node_write_no_wait failed.\n");
2000 return -EIO;
2001 }
2002
2003 SBP2_ORB_DEBUG("write command agent complete");
2004
2005 scsi_id->last_orb = command_orb;
2006 scsi_id->last_orb_dma = command->command_orb_dma;
2007
2008 } else { 2012 } else {
2009 quadlet_t data;
2010
2011 /* 2013 /*
2012 * We have an orb already sent (maybe or maybe not 2014 * last_orb != NULL means: We know that the target's fetch agent
2013 * processed) that we can append this orb to. So do so, 2015 * is (very probably) not dead or in reset state right now.
2014 * and ring the doorbell. Have to be very careful 2016 * We have an ORB already sent that we can append a new one to.
2015 * modifying these next orb pointers, as they are accessed 2017 * The target's fetch agent may or may not have read this
2016 * both by the sbp2 device and us. 2018 * previous ORB yet.
2017 */ 2019 */
2018 scsi_id->last_orb->next_ORB_lo = 2020 pci_dma_sync_single_for_cpu(hi->host->pdev, last_orb_dma,
2019 cpu_to_be32(command->command_orb_dma); 2021 sizeof(struct sbp2_command_orb),
2022 PCI_DMA_TODEVICE);
2023 last_orb->next_ORB_lo = cpu_to_be32(command->command_orb_dma);
2024 wmb();
2020 /* Tells hardware that this pointer is valid */ 2025 /* Tells hardware that this pointer is valid */
2021 scsi_id->last_orb->next_ORB_hi = 0x0; 2026 last_orb->next_ORB_hi = 0;
2022 pci_dma_sync_single_for_device(hi->host->pdev, 2027 pci_dma_sync_single_for_device(hi->host->pdev, last_orb_dma,
2023 scsi_id->last_orb_dma,
2024 sizeof(struct sbp2_command_orb), 2028 sizeof(struct sbp2_command_orb),
2025 PCI_DMA_BIDIRECTIONAL); 2029 PCI_DMA_TODEVICE);
2030 addr += SBP2_DOORBELL_OFFSET;
2031 data[0] = 0;
2032 length = 4;
2033 }
2034 scsi_id->last_orb = command_orb;
2035 scsi_id->last_orb_dma = command->command_orb_dma;
2036 spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
2026 2037
2038 SBP2_ORB_DEBUG("write to %s register, command orb %p",
2039 last_orb ? "DOORBELL" : "ORB_POINTER", command_orb);
2040 if (sbp2util_node_write_no_wait(scsi_id->ne, addr, data, length)) {
2027 /* 2041 /*
2028 * Ring the doorbell 2042 * sbp2util_node_write_no_wait failed. We certainly ran out
2043 * of transaction labels, perhaps just because there were no
2044 * context switches which gave khpsbpkt a chance to collect
2045 * free tlabels. Try again in non-atomic context. If necessary,
2046 * the workqueue job will sleep to guaranteedly get a tlabel.
2047 * We do not accept new commands until the job is over.
2029 */ 2048 */
2030 data = cpu_to_be32(command->command_orb_dma); 2049 scsi_block_requests(scsi_id->scsi_host);
2031 addr = scsi_id->sbp2_command_block_agent_addr + SBP2_DOORBELL_OFFSET; 2050 PREPARE_WORK(&scsi_id->protocol_work,
2032 2051 last_orb ? sbp2util_write_doorbell:
2033 SBP2_ORB_DEBUG("ring doorbell, command orb %p", command_orb); 2052 sbp2util_write_orb_pointer,
2034 2053 scsi_id);
2035 if (sbp2util_node_write_no_wait(ne, addr, &data, 4) < 0) { 2054 schedule_work(&scsi_id->protocol_work);
2036 SBP2_ERR("sbp2util_node_write_no_wait failed");
2037 return -EIO;
2038 }
2039
2040 scsi_id->last_orb = command_orb;
2041 scsi_id->last_orb_dma = command->command_orb_dma;
2042
2043 } 2055 }
2044 return 0;
2045} 2056}
2046 2057
2047/* 2058/*
@@ -2078,11 +2089,6 @@ static int sbp2_send_command(struct scsi_id_instance_data *scsi_id,
2078 "sbp2 command orb", command->command_orb_dma); 2089 "sbp2 command orb", command->command_orb_dma);
2079 2090
2080 /* 2091 /*
2081 * Initialize status fifo
2082 */
2083 memset(&scsi_id->status_block, 0, sizeof(struct sbp2_status_block));
2084
2085 /*
2086 * Link up the orb, and ring the doorbell if needed 2092 * Link up the orb, and ring the doorbell if needed
2087 */ 2093 */
2088 sbp2_link_orb_command(scsi_id, command); 2094 sbp2_link_orb_command(scsi_id, command);
@@ -2123,12 +2129,14 @@ static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, unchar *sense
2123/* 2129/*
2124 * This function deals with status writes from the SBP-2 device 2130 * This function deals with status writes from the SBP-2 device
2125 */ 2131 */
2126static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid, 2132static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid,
2127 quadlet_t *data, u64 addr, size_t length, u16 fl) 2133 int destid, quadlet_t *data, u64 addr,
2134 size_t length, u16 fl)
2128{ 2135{
2129 struct sbp2scsi_host_info *hi; 2136 struct sbp2scsi_host_info *hi;
2130 struct scsi_id_instance_data *scsi_id = NULL, *scsi_id_tmp; 2137 struct scsi_id_instance_data *scsi_id = NULL, *scsi_id_tmp;
2131 struct scsi_cmnd *SCpnt = NULL; 2138 struct scsi_cmnd *SCpnt = NULL;
2139 struct sbp2_status_block *sb;
2132 u32 scsi_status = SBP2_SCSI_STATUS_GOOD; 2140 u32 scsi_status = SBP2_SCSI_STATUS_GOOD;
2133 struct sbp2_command_info *command; 2141 struct sbp2_command_info *command;
2134 unsigned long flags; 2142 unsigned long flags;
@@ -2137,18 +2145,19 @@ static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int dest
2137 2145
2138 sbp2util_packet_dump(data, length, "sbp2 status write by device", (u32)addr); 2146 sbp2util_packet_dump(data, length, "sbp2 status write by device", (u32)addr);
2139 2147
2140 if (!host) { 2148 if (unlikely(length < 8 || length > sizeof(struct sbp2_status_block))) {
2149 SBP2_ERR("Wrong size of status block");
2150 return RCODE_ADDRESS_ERROR;
2151 }
2152 if (unlikely(!host)) {
2141 SBP2_ERR("host is NULL - this is bad!"); 2153 SBP2_ERR("host is NULL - this is bad!");
2142 return RCODE_ADDRESS_ERROR; 2154 return RCODE_ADDRESS_ERROR;
2143 } 2155 }
2144
2145 hi = hpsb_get_hostinfo(&sbp2_highlevel, host); 2156 hi = hpsb_get_hostinfo(&sbp2_highlevel, host);
2146 2157 if (unlikely(!hi)) {
2147 if (!hi) {
2148 SBP2_ERR("host info is NULL - this is bad!"); 2158 SBP2_ERR("host info is NULL - this is bad!");
2149 return RCODE_ADDRESS_ERROR; 2159 return RCODE_ADDRESS_ERROR;
2150 } 2160 }
2151
2152 /* 2161 /*
2153 * Find our scsi_id structure by looking at the status fifo address 2162 * Find our scsi_id structure by looking at the status fifo address
2154 * written to by the sbp2 device. 2163 * written to by the sbp2 device.
@@ -2160,32 +2169,35 @@ static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int dest
2160 break; 2169 break;
2161 } 2170 }
2162 } 2171 }
2163 2172 if (unlikely(!scsi_id)) {
2164 if (!scsi_id) {
2165 SBP2_ERR("scsi_id is NULL - device is gone?"); 2173 SBP2_ERR("scsi_id is NULL - device is gone?");
2166 return RCODE_ADDRESS_ERROR; 2174 return RCODE_ADDRESS_ERROR;
2167 } 2175 }
2168 2176
2169 /* 2177 /*
2170 * Put response into scsi_id status fifo... 2178 * Put response into scsi_id status fifo buffer. The first two bytes
2179 * come in big endian bit order. Often the target writes only a
2180 * truncated status block, minimally the first two quadlets. The rest
2181 * is implied to be zeros.
2171 */ 2182 */
2172 memcpy(&scsi_id->status_block, data, length); 2183 sb = &scsi_id->status_block;
2184 memset(sb->command_set_dependent, 0, sizeof(sb->command_set_dependent));
2185 memcpy(sb, data, length);
2186 sbp2util_be32_to_cpu_buffer(sb, 8);
2173 2187
2174 /* 2188 /*
2175 * Byte swap first two quadlets (8 bytes) of status for processing 2189 * Ignore unsolicited status. Handle command ORB status.
2176 */ 2190 */
2177 sbp2util_be32_to_cpu_buffer(&scsi_id->status_block, 8); 2191 if (unlikely(STATUS_GET_SRC(sb->ORB_offset_hi_misc) == 2))
2178 2192 command = NULL;
2179 /* 2193 else
2180 * Handle command ORB status here if necessary. First, need to match status with command. 2194 command = sbp2util_find_command_for_orb(scsi_id,
2181 */ 2195 sb->ORB_offset_lo);
2182 command = sbp2util_find_command_for_orb(scsi_id, scsi_id->status_block.ORB_offset_lo);
2183 if (command) { 2196 if (command) {
2184
2185 SBP2_DEBUG("Found status for command ORB"); 2197 SBP2_DEBUG("Found status for command ORB");
2186 pci_dma_sync_single_for_cpu(hi->host->pdev, command->command_orb_dma, 2198 pci_dma_sync_single_for_cpu(hi->host->pdev, command->command_orb_dma,
2187 sizeof(struct sbp2_command_orb), 2199 sizeof(struct sbp2_command_orb),
2188 PCI_DMA_BIDIRECTIONAL); 2200 PCI_DMA_TODEVICE);
2189 pci_dma_sync_single_for_cpu(hi->host->pdev, command->sge_dma, 2201 pci_dma_sync_single_for_cpu(hi->host->pdev, command->sge_dma,
2190 sizeof(command->scatter_gather_element), 2202 sizeof(command->scatter_gather_element),
2191 PCI_DMA_BIDIRECTIONAL); 2203 PCI_DMA_BIDIRECTIONAL);
@@ -2194,7 +2206,12 @@ static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int dest
2194 outstanding_orb_decr; 2206 outstanding_orb_decr;
2195 2207
2196 /* 2208 /*
2197 * Matched status with command, now grab scsi command pointers and check status 2209 * Matched status with command, now grab scsi command pointers
2210 * and check status.
2211 */
2212 /*
2213 * FIXME: If the src field in the status is 1, the ORB DMA must
2214 * not be reused until status for a subsequent ORB is received.
2198 */ 2215 */
2199 SCpnt = command->Current_SCpnt; 2216 SCpnt = command->Current_SCpnt;
2200 spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags); 2217 spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags);
@@ -2202,61 +2219,64 @@ static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int dest
2202 spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags); 2219 spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
2203 2220
2204 if (SCpnt) { 2221 if (SCpnt) {
2205 2222 u32 h = sb->ORB_offset_hi_misc;
2223 u32 r = STATUS_GET_RESP(h);
2224
2225 if (r != RESP_STATUS_REQUEST_COMPLETE) {
2226 SBP2_WARN("resp 0x%x, sbp_status 0x%x",
2227 r, STATUS_GET_SBP_STATUS(h));
2228 scsi_status =
2229 r == RESP_STATUS_TRANSPORT_FAILURE ?
2230 SBP2_SCSI_STATUS_BUSY :
2231 SBP2_SCSI_STATUS_COMMAND_TERMINATED;
2232 }
2206 /* 2233 /*
2207 * See if the target stored any scsi status information 2234 * See if the target stored any scsi status information.
2208 */ 2235 */
2209 if (STATUS_GET_LENGTH(scsi_id->status_block.ORB_offset_hi_misc) > 1) { 2236 if (STATUS_GET_LEN(h) > 1) {
2210 /*
2211 * Translate SBP-2 status to SCSI sense data
2212 */
2213 SBP2_DEBUG("CHECK CONDITION"); 2237 SBP2_DEBUG("CHECK CONDITION");
2214 scsi_status = sbp2_status_to_sense_data((unchar *)&scsi_id->status_block, SCpnt->sense_buffer); 2238 scsi_status = sbp2_status_to_sense_data(
2239 (unchar *)sb, SCpnt->sense_buffer);
2215 } 2240 }
2216
2217 /* 2241 /*
2218 * Check to see if the dead bit is set. If so, we'll have to initiate 2242 * Check to see if the dead bit is set. If so, we'll
2219 * a fetch agent reset. 2243 * have to initiate a fetch agent reset.
2220 */ 2244 */
2221 if (STATUS_GET_DEAD_BIT(scsi_id->status_block.ORB_offset_hi_misc)) { 2245 if (STATUS_TEST_DEAD(h)) {
2222 2246 SBP2_DEBUG("Dead bit set - "
2223 /* 2247 "initiating fetch agent reset");
2224 * Initiate a fetch agent reset.
2225 */
2226 SBP2_DEBUG("Dead bit set - initiating fetch agent reset");
2227 sbp2_agent_reset(scsi_id, 0); 2248 sbp2_agent_reset(scsi_id, 0);
2228 } 2249 }
2229
2230 SBP2_ORB_DEBUG("completing command orb %p", &command->command_orb); 2250 SBP2_ORB_DEBUG("completing command orb %p", &command->command_orb);
2231 } 2251 }
2232 2252
2233 /* 2253 /*
2234 * Check here to see if there are no commands in-use. If there are none, we can 2254 * Check here to see if there are no commands in-use. If there
2235 * null out last orb so that next time around we write directly to the orb pointer... 2255 * are none, we know that the fetch agent left the active state
2236 * Quick start saves one 1394 bus transaction. 2256 * _and_ that we did not reactivate it yet. Therefore clear
2257 * last_orb so that next time we write directly to the
2258 * ORB_POINTER register. That way the fetch agent does not need
2259 * to refetch the next_ORB.
2237 */ 2260 */
2238 spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags); 2261 spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags);
2239 if (list_empty(&scsi_id->sbp2_command_orb_inuse)) { 2262 if (list_empty(&scsi_id->sbp2_command_orb_inuse))
2240 scsi_id->last_orb = NULL; 2263 scsi_id->last_orb = NULL;
2241 }
2242 spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags); 2264 spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
2243 2265
2244 } else { 2266 } else {
2245
2246 /* 2267 /*
2247 * It's probably a login/logout/reconnect status. 2268 * It's probably a login/logout/reconnect status.
2248 */ 2269 */
2249 if ((scsi_id->login_orb_dma == scsi_id->status_block.ORB_offset_lo) || 2270 if ((sb->ORB_offset_lo == scsi_id->reconnect_orb_dma) ||
2250 (scsi_id->query_logins_orb_dma == scsi_id->status_block.ORB_offset_lo) || 2271 (sb->ORB_offset_lo == scsi_id->login_orb_dma) ||
2251 (scsi_id->reconnect_orb_dma == scsi_id->status_block.ORB_offset_lo) || 2272 (sb->ORB_offset_lo == scsi_id->query_logins_orb_dma) ||
2252 (scsi_id->logout_orb_dma == scsi_id->status_block.ORB_offset_lo)) { 2273 (sb->ORB_offset_lo == scsi_id->logout_orb_dma)) {
2253 atomic_set(&scsi_id->sbp2_login_complete, 1); 2274 scsi_id->access_complete = 1;
2275 wake_up_interruptible(&access_wq);
2254 } 2276 }
2255 } 2277 }
2256 2278
2257 if (SCpnt) { 2279 if (SCpnt) {
2258
2259 /* Complete the SCSI command. */
2260 SBP2_DEBUG("Completing SCSI command"); 2280 SBP2_DEBUG("Completing SCSI command");
2261 sbp2scsi_complete_command(scsi_id, scsi_status, SCpnt, 2281 sbp2scsi_complete_command(scsi_id, scsi_status, SCpnt,
2262 command->Current_done); 2282 command->Current_done);
@@ -2372,7 +2392,7 @@ static void sbp2scsi_complete_all_commands(struct scsi_id_instance_data *scsi_id
2372 command = list_entry(lh, struct sbp2_command_info, list); 2392 command = list_entry(lh, struct sbp2_command_info, list);
2373 pci_dma_sync_single_for_cpu(hi->host->pdev, command->command_orb_dma, 2393 pci_dma_sync_single_for_cpu(hi->host->pdev, command->command_orb_dma,
2374 sizeof(struct sbp2_command_orb), 2394 sizeof(struct sbp2_command_orb),
2375 PCI_DMA_BIDIRECTIONAL); 2395 PCI_DMA_TODEVICE);
2376 pci_dma_sync_single_for_cpu(hi->host->pdev, command->sge_dma, 2396 pci_dma_sync_single_for_cpu(hi->host->pdev, command->sge_dma,
2377 sizeof(command->scatter_gather_element), 2397 sizeof(command->scatter_gather_element),
2378 PCI_DMA_BIDIRECTIONAL); 2398 PCI_DMA_BIDIRECTIONAL);
@@ -2495,6 +2515,7 @@ static int sbp2scsi_slave_alloc(struct scsi_device *sdev)
2495 (struct scsi_id_instance_data *)sdev->host->hostdata[0]; 2515 (struct scsi_id_instance_data *)sdev->host->hostdata[0];
2496 2516
2497 scsi_id->sdev = sdev; 2517 scsi_id->sdev = sdev;
2518 sdev->allow_restart = 1;
2498 2519
2499 if (scsi_id->workarounds & SBP2_WORKAROUND_INQUIRY_36) 2520 if (scsi_id->workarounds & SBP2_WORKAROUND_INQUIRY_36)
2500 sdev->inquiry_len = 36; 2521 sdev->inquiry_len = 36;
@@ -2508,16 +2529,12 @@ static int sbp2scsi_slave_configure(struct scsi_device *sdev)
2508 2529
2509 blk_queue_dma_alignment(sdev->request_queue, (512 - 1)); 2530 blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
2510 sdev->use_10_for_rw = 1; 2531 sdev->use_10_for_rw = 1;
2511 sdev->use_10_for_ms = 1;
2512 2532
2513 if (sdev->type == TYPE_DISK && 2533 if (sdev->type == TYPE_DISK &&
2514 scsi_id->workarounds & SBP2_WORKAROUND_MODE_SENSE_8) 2534 scsi_id->workarounds & SBP2_WORKAROUND_MODE_SENSE_8)
2515 sdev->skip_ms_page_8 = 1; 2535 sdev->skip_ms_page_8 = 1;
2516 if (scsi_id->workarounds & SBP2_WORKAROUND_FIX_CAPACITY) 2536 if (scsi_id->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
2517 sdev->fix_capacity = 1; 2537 sdev->fix_capacity = 1;
2518 if (scsi_id->ne->guid_vendor_id == 0x0010b9 && /* Maxtor's OUI */
2519 (sdev->type == TYPE_DISK || sdev->type == TYPE_RBC))
2520 sdev->allow_restart = 1;
2521 return 0; 2538 return 0;
2522} 2539}
2523 2540
@@ -2555,7 +2572,7 @@ static int sbp2scsi_abort(struct scsi_cmnd *SCpnt)
2555 pci_dma_sync_single_for_cpu(hi->host->pdev, 2572 pci_dma_sync_single_for_cpu(hi->host->pdev,
2556 command->command_orb_dma, 2573 command->command_orb_dma,
2557 sizeof(struct sbp2_command_orb), 2574 sizeof(struct sbp2_command_orb),
2558 PCI_DMA_BIDIRECTIONAL); 2575 PCI_DMA_TODEVICE);
2559 pci_dma_sync_single_for_cpu(hi->host->pdev, 2576 pci_dma_sync_single_for_cpu(hi->host->pdev,
2560 command->sge_dma, 2577 command->sge_dma,
2561 sizeof(command->scatter_gather_element), 2578 sizeof(command->scatter_gather_element),
@@ -2571,7 +2588,7 @@ static int sbp2scsi_abort(struct scsi_cmnd *SCpnt)
2571 /* 2588 /*
2572 * Initiate a fetch agent reset. 2589 * Initiate a fetch agent reset.
2573 */ 2590 */
2574 sbp2_agent_reset(scsi_id, 0); 2591 sbp2_agent_reset(scsi_id, 1);
2575 sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY); 2592 sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY);
2576 } 2593 }
2577 2594
@@ -2590,7 +2607,7 @@ static int sbp2scsi_reset(struct scsi_cmnd *SCpnt)
2590 2607
2591 if (sbp2util_node_is_available(scsi_id)) { 2608 if (sbp2util_node_is_available(scsi_id)) {
2592 SBP2_ERR("Generating sbp2 fetch agent reset"); 2609 SBP2_ERR("Generating sbp2 fetch agent reset");
2593 sbp2_agent_reset(scsi_id, 0); 2610 sbp2_agent_reset(scsi_id, 1);
2594 } 2611 }
2595 2612
2596 return SUCCESS; 2613 return SUCCESS;
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index b22ce1aa8fe4..abbe48e646c3 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -46,8 +46,8 @@
46#define ORB_SET_DIRECTION(value) ((value & 0x1) << 27) 46#define ORB_SET_DIRECTION(value) ((value & 0x1) << 27)
47 47
48struct sbp2_command_orb { 48struct sbp2_command_orb {
49 volatile u32 next_ORB_hi; 49 u32 next_ORB_hi;
50 volatile u32 next_ORB_lo; 50 u32 next_ORB_lo;
51 u32 data_descriptor_hi; 51 u32 data_descriptor_hi;
52 u32 data_descriptor_lo; 52 u32 data_descriptor_lo;
53 u32 misc; 53 u32 misc;
@@ -180,12 +180,14 @@ struct sbp2_unrestricted_page_table {
180 180
181#define SBP2_SCSI_STATUS_SELECTION_TIMEOUT 0xff 181#define SBP2_SCSI_STATUS_SELECTION_TIMEOUT 0xff
182 182
183#define STATUS_GET_ORB_OFFSET_HI(value) (value & 0xffff) 183#define STATUS_GET_SRC(value) (((value) >> 30) & 0x3)
184#define STATUS_GET_SBP_STATUS(value) ((value >> 16) & 0xff) 184#define STATUS_GET_RESP(value) (((value) >> 28) & 0x3)
185#define STATUS_GET_LENGTH(value) ((value >> 24) & 0x7) 185#define STATUS_GET_LEN(value) (((value) >> 24) & 0x7)
186#define STATUS_GET_DEAD_BIT(value) ((value >> 27) & 0x1) 186#define STATUS_GET_SBP_STATUS(value) (((value) >> 16) & 0xff)
187#define STATUS_GET_RESP(value) ((value >> 28) & 0x3) 187#define STATUS_GET_ORB_OFFSET_HI(value) ((value) & 0x0000ffff)
188#define STATUS_GET_SRC(value) ((value >> 30) & 0x3) 188#define STATUS_TEST_DEAD(value) ((value) & 0x08000000)
189/* test 'resp' | 'dead' | 'sbp2_status' */
190#define STATUS_TEST_RDS(value) ((value) & 0x38ff0000)
189 191
190struct sbp2_status_block { 192struct sbp2_status_block {
191 u32 ORB_offset_hi_misc; 193 u32 ORB_offset_hi_misc;
@@ -318,9 +320,9 @@ struct scsi_id_instance_data {
318 u64 status_fifo_addr; 320 u64 status_fifo_addr;
319 321
320 /* 322 /*
321 * Variable used for logins, reconnects, logouts, query logins 323 * Waitqueue flag for logins, reconnects, logouts, query logins
322 */ 324 */
323 atomic_t sbp2_login_complete; 325 int access_complete:1;
324 326
325 /* 327 /*
326 * Pool of command orbs, so we can have more than overlapped command per id 328 * Pool of command orbs, so we can have more than overlapped command per id
@@ -344,6 +346,16 @@ struct scsi_id_instance_data {
344 346
345 /* Device specific workarounds/brokeness */ 347 /* Device specific workarounds/brokeness */
346 unsigned workarounds; 348 unsigned workarounds;
349
350 atomic_t state;
351 struct work_struct protocol_work;
352};
353
354/* For use in scsi_id_instance_data.state */
355enum sbp2lu_state_types {
356 SBP2LU_STATE_RUNNING, /* all normal */
357 SBP2LU_STATE_IN_RESET, /* between bus reset and reconnect */
358 SBP2LU_STATE_IN_SHUTDOWN /* when sbp2_remove was called */
347}; 359};
348 360
349/* Sbp2 host data structure (one per IEEE1394 host) */ 361/* Sbp2 host data structure (one per IEEE1394 host) */
@@ -390,11 +402,6 @@ static int sbp2_logout_device(struct scsi_id_instance_data *scsi_id);
390static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid, 402static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid,
391 quadlet_t *data, u64 addr, size_t length, u16 flags); 403 quadlet_t *data, u64 addr, size_t length, u16 flags);
392static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait); 404static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait);
393static int sbp2_link_orb_command(struct scsi_id_instance_data *scsi_id,
394 struct sbp2_command_info *command);
395static int sbp2_send_command(struct scsi_id_instance_data *scsi_id,
396 struct scsi_cmnd *SCpnt,
397 void (*done)(struct scsi_cmnd *));
398static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, 405static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status,
399 unchar *sense_data); 406 unchar *sense_data);
400static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id, 407static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id,
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index c6e3f02bc6d7..9bc65059cc69 100644
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -49,16 +49,16 @@
49#include <linux/compat.h> 49#include <linux/compat.h>
50#include <linux/cdev.h> 50#include <linux/cdev.h>
51 51
52#include "ieee1394.h" 52#include "dma.h"
53#include "ieee1394_types.h" 53#include "highlevel.h"
54#include "hosts.h" 54#include "hosts.h"
55#include "ieee1394.h"
55#include "ieee1394_core.h" 56#include "ieee1394_core.h"
56#include "highlevel.h" 57#include "ieee1394_hotplug.h"
57#include "video1394.h" 58#include "ieee1394_types.h"
58#include "nodemgr.h" 59#include "nodemgr.h"
59#include "dma.h"
60
61#include "ohci1394.h" 60#include "ohci1394.h"
61#include "video1394.h"
62 62
63#define ISO_CHANNELS 64 63#define ISO_CHANNELS 64
64 64
@@ -129,7 +129,7 @@ struct file_ctx {
129#define DBGMSG(card, fmt, args...) \ 129#define DBGMSG(card, fmt, args...) \
130printk(KERN_INFO "video1394_%d: " fmt "\n" , card , ## args) 130printk(KERN_INFO "video1394_%d: " fmt "\n" , card , ## args)
131#else 131#else
132#define DBGMSG(card, fmt, args...) 132#define DBGMSG(card, fmt, args...) do {} while (0)
133#endif 133#endif
134 134
135/* print general (card independent) information */ 135/* print general (card independent) information */
@@ -1181,7 +1181,8 @@ static int video1394_mmap(struct file *file, struct vm_area_struct *vma)
1181 1181
1182 lock_kernel(); 1182 lock_kernel();
1183 if (ctx->current_ctx == NULL) { 1183 if (ctx->current_ctx == NULL) {
1184 PRINT(KERN_ERR, ctx->ohci->host->id, "Current iso context not set"); 1184 PRINT(KERN_ERR, ctx->ohci->host->id,
1185 "Current iso context not set");
1185 } else 1186 } else
1186 res = dma_region_mmap(&ctx->current_ctx->dma, file, vma); 1187 res = dma_region_mmap(&ctx->current_ctx->dma, file, vma);
1187 unlock_kernel(); 1188 unlock_kernel();
@@ -1189,6 +1190,40 @@ static int video1394_mmap(struct file *file, struct vm_area_struct *vma)
1189 return res; 1190 return res;
1190} 1191}
1191 1192
1193static unsigned int video1394_poll(struct file *file, poll_table *pt)
1194{
1195 struct file_ctx *ctx;
1196 unsigned int mask = 0;
1197 unsigned long flags;
1198 struct dma_iso_ctx *d;
1199 int i;
1200
1201 lock_kernel();
1202 ctx = file->private_data;
1203 d = ctx->current_ctx;
1204 if (d == NULL) {
1205 PRINT(KERN_ERR, ctx->ohci->host->id,
1206 "Current iso context not set");
1207 mask = POLLERR;
1208 goto done;
1209 }
1210
1211 poll_wait(file, &d->waitq, pt);
1212
1213 spin_lock_irqsave(&d->lock, flags);
1214 for (i = 0; i < d->num_desc; i++) {
1215 if (d->buffer_status[i] == VIDEO1394_BUFFER_READY) {
1216 mask |= POLLIN | POLLRDNORM;
1217 break;
1218 }
1219 }
1220 spin_unlock_irqrestore(&d->lock, flags);
1221done:
1222 unlock_kernel();
1223
1224 return mask;
1225}
1226
1192static int video1394_open(struct inode *inode, struct file *file) 1227static int video1394_open(struct inode *inode, struct file *file)
1193{ 1228{
1194 int i = ieee1394_file_to_instance(file); 1229 int i = ieee1394_file_to_instance(file);
@@ -1257,6 +1292,7 @@ static struct file_operations video1394_fops=
1257#ifdef CONFIG_COMPAT 1292#ifdef CONFIG_COMPAT
1258 .compat_ioctl = video1394_compat_ioctl, 1293 .compat_ioctl = video1394_compat_ioctl,
1259#endif 1294#endif
1295 .poll = video1394_poll,
1260 .mmap = video1394_mmap, 1296 .mmap = video1394_mmap,
1261 .open = video1394_open, 1297 .open = video1394_open,
1262 .release = video1394_release 1298 .release = video1394_release
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-21 21:28:35 -0400