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path: root/drivers/ieee1394/highlevel.c
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Diffstat (limited to 'drivers/ieee1394/highlevel.c')
-rw-r--r--drivers/ieee1394/highlevel.c415
1 files changed, 182 insertions, 233 deletions
diff --git a/drivers/ieee1394/highlevel.c b/drivers/ieee1394/highlevel.c
index d255d407e064..25b22609e793 100644
--- a/drivers/ieee1394/highlevel.c
+++ b/drivers/ieee1394/highlevel.c
@@ -53,7 +53,7 @@ static struct hpsb_address_serve dummy_zero_addr, dummy_max_addr;
static struct hl_host_info *hl_get_hostinfo(struct hpsb_highlevel *hl,
- struct hpsb_host *host)
+ struct hpsb_host *host)
{
struct hl_host_info *hi = NULL;
@@ -68,24 +68,18 @@ static struct hl_host_info *hl_get_hostinfo(struct hpsb_highlevel *hl,
}
}
read_unlock(&hl->host_info_lock);
-
return NULL;
}
-
/* Returns a per host/driver data structure that was previously stored by
* hpsb_create_hostinfo. */
void *hpsb_get_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
{
struct hl_host_info *hi = hl_get_hostinfo(hl, host);
- if (hi)
- return hi->data;
-
- return NULL;
+ return hi ? hi->data : NULL;
}
-
/* If size is zero, then the return here is only valid for error checking */
void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
size_t data_size)
@@ -96,8 +90,8 @@ void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
hi = hl_get_hostinfo(hl, host);
if (hi) {
- HPSB_ERR("%s called hpsb_create_hostinfo when hostinfo already exists",
- hl->name);
+ HPSB_ERR("%s called hpsb_create_hostinfo when hostinfo already"
+ " exists", hl->name);
return NULL;
}
@@ -120,7 +114,6 @@ void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
return data;
}
-
int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
void *data)
{
@@ -132,16 +125,14 @@ int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
hi->data = data;
return 0;
} else
- HPSB_ERR("%s called hpsb_set_hostinfo when hostinfo already has data",
- hl->name);
+ HPSB_ERR("%s called hpsb_set_hostinfo when hostinfo "
+ "already has data", hl->name);
} else
HPSB_ERR("%s called hpsb_set_hostinfo when no hostinfo exists",
hl->name);
-
return -EINVAL;
}
-
void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
{
struct hl_host_info *hi;
@@ -154,23 +145,20 @@ void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
write_unlock_irqrestore(&hl->host_info_lock, flags);
kfree(hi);
}
-
return;
}
-
-void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host, unsigned long key)
+void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host,
+ unsigned long key)
{
struct hl_host_info *hi;
hi = hl_get_hostinfo(hl, host);
if (hi)
hi->key = key;
-
return;
}
-
void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key)
{
struct hl_host_info *hi;
@@ -187,24 +175,18 @@ void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key)
}
}
read_unlock(&hl->host_info_lock);
-
return data;
}
-
static int highlevel_for_each_host_reg(struct hpsb_host *host, void *__data)
{
struct hpsb_highlevel *hl = __data;
hl->add_host(host);
- if (host->update_config_rom) {
- if (hpsb_update_config_rom_image(host) < 0) {
- HPSB_ERR("Failed to generate Configuration ROM image for host "
- "%s-%d", hl->name, host->id);
- }
- }
-
+ if (host->update_config_rom && hpsb_update_config_rom_image(host) < 0)
+ HPSB_ERR("Failed to generate Configuration ROM image for host "
+ "%s-%d", hl->name, host->id);
return 0;
}
@@ -212,13 +194,13 @@ void hpsb_register_highlevel(struct hpsb_highlevel *hl)
{
unsigned long flags;
- INIT_LIST_HEAD(&hl->addr_list);
+ INIT_LIST_HEAD(&hl->addr_list);
INIT_LIST_HEAD(&hl->host_info_list);
rwlock_init(&hl->host_info_lock);
down_write(&hl_drivers_sem);
- list_add_tail(&hl->hl_list, &hl_drivers);
+ list_add_tail(&hl->hl_list, &hl_drivers);
up_write(&hl_drivers_sem);
write_lock_irqsave(&hl_irqs_lock, flags);
@@ -227,8 +209,7 @@ void hpsb_register_highlevel(struct hpsb_highlevel *hl)
if (hl->add_host)
nodemgr_for_each_host(hl, highlevel_for_each_host_reg);
-
- return;
+ return;
}
static void __delete_addr(struct hpsb_address_serve *as)
@@ -238,7 +219,8 @@ static void __delete_addr(struct hpsb_address_serve *as)
kfree(as);
}
-static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host, int update_cr)
+static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host,
+ int update_cr)
{
unsigned long flags;
struct list_head *lh, *next;
@@ -253,7 +235,6 @@ static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host,
write_lock_irqsave(&addr_space_lock, flags);
list_for_each_safe (lh, next, &hl->addr_list) {
as = list_entry(lh, struct hpsb_address_serve, hl_list);
-
if (as->host == host)
__delete_addr(as);
}
@@ -261,15 +242,12 @@ static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host,
/* Now update the config-rom to reflect anything removed by the
* highlevel driver. */
- if (update_cr && host->update_config_rom) {
- if (hpsb_update_config_rom_image(host) < 0) {
- HPSB_ERR("Failed to generate Configuration ROM image for host "
- "%s-%d", hl->name, host->id);
- }
- }
+ if (update_cr && host->update_config_rom &&
+ hpsb_update_config_rom_image(host) < 0)
+ HPSB_ERR("Failed to generate Configuration ROM image for host "
+ "%s-%d", hl->name, host->id);
- /* And finally, remove all the host info associated between these
- * two. */
+ /* Finally remove all the host info associated between these two. */
hpsb_destroy_hostinfo(hl, host);
}
@@ -278,7 +256,6 @@ static int highlevel_for_each_host_unreg(struct hpsb_host *host, void *__data)
struct hpsb_highlevel *hl = __data;
__unregister_host(hl, host, 1);
-
return 0;
}
@@ -291,7 +268,7 @@ void hpsb_unregister_highlevel(struct hpsb_highlevel *hl)
write_unlock_irqrestore(&hl_irqs_lock, flags);
down_write(&hl_drivers_sem);
- list_del(&hl->hl_list);
+ list_del(&hl->hl_list);
up_write(&hl_drivers_sem);
nodemgr_for_each_host(hl, highlevel_for_each_host_unreg);
@@ -324,9 +301,11 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
end = CSR1212_ALL_SPACE_END;
}
- if (((start|end) & ~align_mask) || (start >= end) || (end > 0x1000000000000ULL)) {
- HPSB_ERR("%s called with invalid addresses (start = %012Lx end = %012Lx)",
- __FUNCTION__, (unsigned long long)start, (unsigned long long)end);
+ if (((start|end) & ~align_mask) || (start >= end) ||
+ (end > CSR1212_ALL_SPACE_END)) {
+ HPSB_ERR("%s called with invalid addresses "
+ "(start = %012Lx end = %012Lx)", __FUNCTION__,
+ (unsigned long long)start,(unsigned long long)end);
return retval;
}
@@ -340,20 +319,21 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
as->host = host;
write_lock_irqsave(&addr_space_lock, flags);
-
list_for_each(entry, &host->addr_space) {
u64 a1sa, a1ea;
u64 a2sa, a2ea;
a1 = list_entry(entry, struct hpsb_address_serve, host_list);
- a2 = list_entry(entry->next, struct hpsb_address_serve, host_list);
+ a2 = list_entry(entry->next, struct hpsb_address_serve,
+ host_list);
a1sa = a1->start & align_mask;
a1ea = (a1->end + alignment -1) & align_mask;
a2sa = a2->start & align_mask;
a2ea = (a2->end + alignment -1) & align_mask;
- if ((a2sa - a1ea >= size) && (a2sa - start >= size) && (a2sa > start)) {
+ if ((a2sa - a1ea >= size) && (a2sa - start >= size) &&
+ (a2sa > start)) {
as->start = max(start, a1ea);
as->end = as->start + size;
list_add(&as->host_list, entry);
@@ -362,47 +342,45 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
break;
}
}
-
write_unlock_irqrestore(&addr_space_lock, flags);
- if (retval == CSR1212_INVALID_ADDR_SPACE) {
+ if (retval == CSR1212_INVALID_ADDR_SPACE)
kfree(as);
- }
-
return retval;
}
int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
- struct hpsb_address_ops *ops, u64 start, u64 end)
+ struct hpsb_address_ops *ops, u64 start, u64 end)
{
- struct hpsb_address_serve *as;
+ struct hpsb_address_serve *as;
struct list_head *lh;
- int retval = 0;
- unsigned long flags;
+ int retval = 0;
+ unsigned long flags;
- if (((start|end) & 3) || (start >= end) || (end > 0x1000000000000ULL)) {
- HPSB_ERR("%s called with invalid addresses", __FUNCTION__);
- return 0;
- }
+ if (((start|end) & 3) || (start >= end) ||
+ (end > CSR1212_ALL_SPACE_END)) {
+ HPSB_ERR("%s called with invalid addresses", __FUNCTION__);
+ return 0;
+ }
as = kmalloc(sizeof(*as), GFP_ATOMIC);
if (!as)
return 0;
- INIT_LIST_HEAD(&as->host_list);
- INIT_LIST_HEAD(&as->hl_list);
- as->op = ops;
- as->start = start;
- as->end = end;
+ INIT_LIST_HEAD(&as->host_list);
+ INIT_LIST_HEAD(&as->hl_list);
+ as->op = ops;
+ as->start = start;
+ as->end = end;
as->host = host;
write_lock_irqsave(&addr_space_lock, flags);
-
list_for_each(lh, &host->addr_space) {
struct hpsb_address_serve *as_this =
list_entry(lh, struct hpsb_address_serve, host_list);
struct hpsb_address_serve *as_next =
- list_entry(lh->next, struct hpsb_address_serve, host_list);
+ list_entry(lh->next, struct hpsb_address_serve,
+ host_list);
if (as_this->end > as->start)
break;
@@ -418,60 +396,51 @@ int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
if (retval == 0)
kfree(as);
-
- return retval;
+ return retval;
}
int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
- u64 start)
+ u64 start)
{
- int retval = 0;
- struct hpsb_address_serve *as;
- struct list_head *lh, *next;
- unsigned long flags;
-
- write_lock_irqsave(&addr_space_lock, flags);
+ int retval = 0;
+ struct hpsb_address_serve *as;
+ struct list_head *lh, *next;
+ unsigned long flags;
+ write_lock_irqsave(&addr_space_lock, flags);
list_for_each_safe (lh, next, &hl->addr_list) {
- as = list_entry(lh, struct hpsb_address_serve, hl_list);
- if (as->start == start && as->host == host) {
+ as = list_entry(lh, struct hpsb_address_serve, hl_list);
+ if (as->start == start && as->host == host) {
__delete_addr(as);
- retval = 1;
- break;
- }
- }
-
- write_unlock_irqrestore(&addr_space_lock, flags);
-
- return retval;
+ retval = 1;
+ break;
+ }
+ }
+ write_unlock_irqrestore(&addr_space_lock, flags);
+ return retval;
}
int hpsb_listen_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel)
+ unsigned int channel)
{
- if (channel > 63) {
- HPSB_ERR("%s called with invalid channel", __FUNCTION__);
- return -EINVAL;
- }
-
- if (host->iso_listen_count[channel]++ == 0) {
- return host->driver->devctl(host, ISO_LISTEN_CHANNEL, channel);
- }
-
+ if (channel > 63) {
+ HPSB_ERR("%s called with invalid channel", __FUNCTION__);
+ return -EINVAL;
+ }
+ if (host->iso_listen_count[channel]++ == 0)
+ return host->driver->devctl(host, ISO_LISTEN_CHANNEL, channel);
return 0;
}
void hpsb_unlisten_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel)
+ unsigned int channel)
{
- if (channel > 63) {
- HPSB_ERR("%s called with invalid channel", __FUNCTION__);
- return;
- }
-
- if (--host->iso_listen_count[channel] == 0) {
- host->driver->devctl(host, ISO_UNLISTEN_CHANNEL, channel);
- }
+ if (channel > 63) {
+ HPSB_ERR("%s called with invalid channel", __FUNCTION__);
+ return;
+ }
+ if (--host->iso_listen_count[channel] == 0)
+ host->driver->devctl(host, ISO_UNLISTEN_CHANNEL, channel);
}
static void init_hpsb_highlevel(struct hpsb_host *host)
@@ -492,26 +461,24 @@ static void init_hpsb_highlevel(struct hpsb_host *host)
void highlevel_add_host(struct hpsb_host *host)
{
- struct hpsb_highlevel *hl;
+ struct hpsb_highlevel *hl;
init_hpsb_highlevel(host);
down_read(&hl_drivers_sem);
- list_for_each_entry(hl, &hl_drivers, hl_list) {
+ list_for_each_entry(hl, &hl_drivers, hl_list) {
if (hl->add_host)
hl->add_host(host);
- }
- up_read(&hl_drivers_sem);
- if (host->update_config_rom) {
- if (hpsb_update_config_rom_image(host) < 0)
- HPSB_ERR("Failed to generate Configuration ROM image for "
- "host %s-%d", hl->name, host->id);
}
+ up_read(&hl_drivers_sem);
+ if (host->update_config_rom && hpsb_update_config_rom_image(host) < 0)
+ HPSB_ERR("Failed to generate Configuration ROM image for host "
+ "%s-%d", hl->name, host->id);
}
void highlevel_remove_host(struct hpsb_host *host)
{
- struct hpsb_highlevel *hl;
+ struct hpsb_highlevel *hl;
down_read(&hl_drivers_sem);
list_for_each_entry(hl, &hl_drivers, hl_list)
@@ -522,186 +489,168 @@ void highlevel_remove_host(struct hpsb_host *host)
void highlevel_host_reset(struct hpsb_host *host)
{
unsigned long flags;
- struct hpsb_highlevel *hl;
+ struct hpsb_highlevel *hl;
read_lock_irqsave(&hl_irqs_lock, flags);
list_for_each_entry(hl, &hl_irqs, irq_list) {
- if (hl->host_reset)
- hl->host_reset(host);
- }
+ if (hl->host_reset)
+ hl->host_reset(host);
+ }
read_unlock_irqrestore(&hl_irqs_lock, flags);
}
void highlevel_iso_receive(struct hpsb_host *host, void *data, size_t length)
{
unsigned long flags;
- struct hpsb_highlevel *hl;
- int channel = (((quadlet_t *)data)[0] >> 8) & 0x3f;
+ struct hpsb_highlevel *hl;
+ int channel = (((quadlet_t *)data)[0] >> 8) & 0x3f;
- read_lock_irqsave(&hl_irqs_lock, flags);
+ read_lock_irqsave(&hl_irqs_lock, flags);
list_for_each_entry(hl, &hl_irqs, irq_list) {
- if (hl->iso_receive)
- hl->iso_receive(host, channel, data, length);
- }
- read_unlock_irqrestore(&hl_irqs_lock, flags);
+ if (hl->iso_receive)
+ hl->iso_receive(host, channel, data, length);
+ }
+ read_unlock_irqrestore(&hl_irqs_lock, flags);
}
void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
void *data, size_t length)
{
unsigned long flags;
- struct hpsb_highlevel *hl;
- int cts = ((quadlet_t *)data)[0] >> 4;
+ struct hpsb_highlevel *hl;
+ int cts = ((quadlet_t *)data)[0] >> 4;
- read_lock_irqsave(&hl_irqs_lock, flags);
+ read_lock_irqsave(&hl_irqs_lock, flags);
list_for_each_entry(hl, &hl_irqs, irq_list) {
- if (hl->fcp_request)
- hl->fcp_request(host, nodeid, direction, cts, data,
+ if (hl->fcp_request)
+ hl->fcp_request(host, nodeid, direction, cts, data,
length);
- }
- read_unlock_irqrestore(&hl_irqs_lock, flags);
+ }
+ read_unlock_irqrestore(&hl_irqs_lock, flags);
}
-int highlevel_read(struct hpsb_host *host, int nodeid, void *data,
- u64 addr, unsigned int length, u16 flags)
+int highlevel_read(struct hpsb_host *host, int nodeid, void *data, u64 addr,
+ unsigned int length, u16 flags)
{
- struct hpsb_address_serve *as;
- unsigned int partlength;
- int rcode = RCODE_ADDRESS_ERROR;
-
- read_lock(&addr_space_lock);
+ struct hpsb_address_serve *as;
+ unsigned int partlength;
+ int rcode = RCODE_ADDRESS_ERROR;
+ read_lock(&addr_space_lock);
list_for_each_entry(as, &host->addr_space, host_list) {
if (as->start > addr)
break;
- if (as->end > addr) {
- partlength = min(as->end - addr, (u64) length);
+ if (as->end > addr) {
+ partlength = min(as->end - addr, (u64) length);
- if (as->op->read) {
- rcode = as->op->read(host, nodeid, data,
+ if (as->op->read)
+ rcode = as->op->read(host, nodeid, data,
addr, partlength, flags);
- } else {
- rcode = RCODE_TYPE_ERROR;
- }
+ else
+ rcode = RCODE_TYPE_ERROR;
data += partlength;
- length -= partlength;
- addr += partlength;
+ length -= partlength;
+ addr += partlength;
- if ((rcode != RCODE_COMPLETE) || !length) {
- break;
- }
- }
- }
-
- read_unlock(&addr_space_lock);
-
- if (length && (rcode == RCODE_COMPLETE)) {
- rcode = RCODE_ADDRESS_ERROR;
- }
+ if ((rcode != RCODE_COMPLETE) || !length)
+ break;
+ }
+ }
+ read_unlock(&addr_space_lock);
- return rcode;
+ if (length && (rcode == RCODE_COMPLETE))
+ rcode = RCODE_ADDRESS_ERROR;
+ return rcode;
}
-int highlevel_write(struct hpsb_host *host, int nodeid, int destid,
- void *data, u64 addr, unsigned int length, u16 flags)
+int highlevel_write(struct hpsb_host *host, int nodeid, int destid, void *data,
+ u64 addr, unsigned int length, u16 flags)
{
- struct hpsb_address_serve *as;
- unsigned int partlength;
- int rcode = RCODE_ADDRESS_ERROR;
-
- read_lock(&addr_space_lock);
+ struct hpsb_address_serve *as;
+ unsigned int partlength;
+ int rcode = RCODE_ADDRESS_ERROR;
+ read_lock(&addr_space_lock);
list_for_each_entry(as, &host->addr_space, host_list) {
if (as->start > addr)
break;
- if (as->end > addr) {
- partlength = min(as->end - addr, (u64) length);
+ if (as->end > addr) {
+ partlength = min(as->end - addr, (u64) length);
- if (as->op->write) {
- rcode = as->op->write(host, nodeid, destid,
- data, addr, partlength, flags);
- } else {
- rcode = RCODE_TYPE_ERROR;
- }
+ if (as->op->write)
+ rcode = as->op->write(host, nodeid, destid,
+ data, addr, partlength,
+ flags);
+ else
+ rcode = RCODE_TYPE_ERROR;
data += partlength;
- length -= partlength;
- addr += partlength;
+ length -= partlength;
+ addr += partlength;
- if ((rcode != RCODE_COMPLETE) || !length) {
- break;
- }
- }
- }
-
- read_unlock(&addr_space_lock);
-
- if (length && (rcode == RCODE_COMPLETE)) {
- rcode = RCODE_ADDRESS_ERROR;
- }
+ if ((rcode != RCODE_COMPLETE) || !length)
+ break;
+ }
+ }
+ read_unlock(&addr_space_lock);
- return rcode;
+ if (length && (rcode == RCODE_COMPLETE))
+ rcode = RCODE_ADDRESS_ERROR;
+ return rcode;
}
-
int highlevel_lock(struct hpsb_host *host, int nodeid, quadlet_t *store,
- u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, u16 flags)
+ u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
+ u16 flags)
{
- struct hpsb_address_serve *as;
- int rcode = RCODE_ADDRESS_ERROR;
-
- read_lock(&addr_space_lock);
+ struct hpsb_address_serve *as;
+ int rcode = RCODE_ADDRESS_ERROR;
+ read_lock(&addr_space_lock);
list_for_each_entry(as, &host->addr_space, host_list) {
if (as->start > addr)
break;
- if (as->end > addr) {
- if (as->op->lock) {
- rcode = as->op->lock(host, nodeid, store, addr,
- data, arg, ext_tcode, flags);
- } else {
- rcode = RCODE_TYPE_ERROR;
- }
-
- break;
- }
- }
-
- read_unlock(&addr_space_lock);
-
- return rcode;
+ if (as->end > addr) {
+ if (as->op->lock)
+ rcode = as->op->lock(host, nodeid, store, addr,
+ data, arg, ext_tcode,
+ flags);
+ else
+ rcode = RCODE_TYPE_ERROR;
+ break;
+ }
+ }
+ read_unlock(&addr_space_lock);
+ return rcode;
}
int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
- u64 addr, octlet_t data, octlet_t arg, int ext_tcode, u16 flags)
+ u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
+ u16 flags)
{
- struct hpsb_address_serve *as;
- int rcode = RCODE_ADDRESS_ERROR;
+ struct hpsb_address_serve *as;
+ int rcode = RCODE_ADDRESS_ERROR;
- read_lock(&addr_space_lock);
+ read_lock(&addr_space_lock);
list_for_each_entry(as, &host->addr_space, host_list) {
if (as->start > addr)
break;
- if (as->end > addr) {
- if (as->op->lock64) {
- rcode = as->op->lock64(host, nodeid, store,
- addr, data, arg,
- ext_tcode, flags);
- } else {
- rcode = RCODE_TYPE_ERROR;
- }
-
- break;
- }
- }
-
- read_unlock(&addr_space_lock);
-
- return rcode;
+ if (as->end > addr) {
+ if (as->op->lock64)
+ rcode = as->op->lock64(host, nodeid, store,
+ addr, data, arg,
+ ext_tcode, flags);
+ else
+ rcode = RCODE_TYPE_ERROR;
+ break;
+ }
+ }
+ read_unlock(&addr_space_lock);
+ return rcode;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 03:10:38 +0000