ieee1394: adjust code formatting in highlevel.c
Replace spaces by tabulators, wrap lines at 80 columns, delete some blank lines and superfluous braces. Collapse some if()-within-if() constructs. Replace a literal CSR address by its preprocessor constant. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Ben Collins <bcollins@ubuntu.com>
This commit is contained in:
Ben Collins
Родитель
445151932e
Коммит
2c4b69bd7b
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@ -53,7 +53,7 @@ static struct hpsb_address_serve dummy_zero_addr, dummy_max_addr;
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static struct hl_host_info *hl_get_hostinfo(struct hpsb_highlevel *hl,
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struct hpsb_host *host)
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struct hpsb_host *host)
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{
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struct hl_host_info *hi = NULL;
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@ -68,24 +68,18 @@ static struct hl_host_info *hl_get_hostinfo(struct hpsb_highlevel *hl,
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}
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}
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read_unlock(&hl->host_info_lock);
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return NULL;
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}
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/* Returns a per host/driver data structure that was previously stored by
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* hpsb_create_hostinfo. */
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void *hpsb_get_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
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{
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struct hl_host_info *hi = hl_get_hostinfo(hl, host);
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if (hi)
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return hi->data;
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return NULL;
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return hi ? hi->data : NULL;
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}
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/* If size is zero, then the return here is only valid for error checking */
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void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
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size_t data_size)
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@ -96,8 +90,8 @@ void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
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hi = hl_get_hostinfo(hl, host);
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if (hi) {
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HPSB_ERR("%s called hpsb_create_hostinfo when hostinfo already exists",
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hl->name);
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HPSB_ERR("%s called hpsb_create_hostinfo when hostinfo already"
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" exists", hl->name);
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return NULL;
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}
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@ -120,7 +114,6 @@ void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
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return data;
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}
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int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
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void *data)
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{
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@ -132,16 +125,14 @@ int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
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hi->data = data;
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return 0;
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} else
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HPSB_ERR("%s called hpsb_set_hostinfo when hostinfo already has data",
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hl->name);
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HPSB_ERR("%s called hpsb_set_hostinfo when hostinfo "
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"already has data", hl->name);
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} else
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HPSB_ERR("%s called hpsb_set_hostinfo when no hostinfo exists",
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hl->name);
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return -EINVAL;
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}
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void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
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{
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struct hl_host_info *hi;
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@ -154,23 +145,20 @@ void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
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write_unlock_irqrestore(&hl->host_info_lock, flags);
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kfree(hi);
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}
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return;
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}
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void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host, unsigned long key)
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void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host,
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unsigned long key)
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{
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struct hl_host_info *hi;
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hi = hl_get_hostinfo(hl, host);
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if (hi)
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hi->key = key;
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return;
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}
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void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key)
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{
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struct hl_host_info *hi;
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@ -187,24 +175,18 @@ void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key)
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}
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}
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read_unlock(&hl->host_info_lock);
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return data;
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}
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static int highlevel_for_each_host_reg(struct hpsb_host *host, void *__data)
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{
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struct hpsb_highlevel *hl = __data;
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hl->add_host(host);
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if (host->update_config_rom) {
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if (hpsb_update_config_rom_image(host) < 0) {
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HPSB_ERR("Failed to generate Configuration ROM image for host "
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"%s-%d", hl->name, host->id);
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}
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}
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if (host->update_config_rom && hpsb_update_config_rom_image(host) < 0)
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HPSB_ERR("Failed to generate Configuration ROM image for host "
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"%s-%d", hl->name, host->id);
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return 0;
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}
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@ -212,13 +194,13 @@ void hpsb_register_highlevel(struct hpsb_highlevel *hl)
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{
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unsigned long flags;
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INIT_LIST_HEAD(&hl->addr_list);
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INIT_LIST_HEAD(&hl->addr_list);
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INIT_LIST_HEAD(&hl->host_info_list);
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rwlock_init(&hl->host_info_lock);
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down_write(&hl_drivers_sem);
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list_add_tail(&hl->hl_list, &hl_drivers);
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list_add_tail(&hl->hl_list, &hl_drivers);
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up_write(&hl_drivers_sem);
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write_lock_irqsave(&hl_irqs_lock, flags);
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@ -227,8 +209,7 @@ void hpsb_register_highlevel(struct hpsb_highlevel *hl)
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if (hl->add_host)
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nodemgr_for_each_host(hl, highlevel_for_each_host_reg);
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return;
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return;
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}
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static void __delete_addr(struct hpsb_address_serve *as)
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@ -238,7 +219,8 @@ static void __delete_addr(struct hpsb_address_serve *as)
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kfree(as);
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}
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static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host, int update_cr)
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static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host,
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int update_cr)
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{
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unsigned long flags;
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struct list_head *lh, *next;
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@ -253,7 +235,6 @@ static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host,
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write_lock_irqsave(&addr_space_lock, flags);
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list_for_each_safe (lh, next, &hl->addr_list) {
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as = list_entry(lh, struct hpsb_address_serve, hl_list);
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if (as->host == host)
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__delete_addr(as);
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}
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@ -261,15 +242,12 @@ static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host,
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/* Now update the config-rom to reflect anything removed by the
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* highlevel driver. */
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if (update_cr && host->update_config_rom) {
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if (hpsb_update_config_rom_image(host) < 0) {
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HPSB_ERR("Failed to generate Configuration ROM image for host "
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"%s-%d", hl->name, host->id);
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}
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}
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if (update_cr && host->update_config_rom &&
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hpsb_update_config_rom_image(host) < 0)
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HPSB_ERR("Failed to generate Configuration ROM image for host "
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"%s-%d", hl->name, host->id);
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/* And finally, remove all the host info associated between these
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* two. */
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/* Finally remove all the host info associated between these two. */
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hpsb_destroy_hostinfo(hl, host);
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}
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@ -278,7 +256,6 @@ static int highlevel_for_each_host_unreg(struct hpsb_host *host, void *__data)
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struct hpsb_highlevel *hl = __data;
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__unregister_host(hl, host, 1);
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return 0;
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}
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@ -291,7 +268,7 @@ void hpsb_unregister_highlevel(struct hpsb_highlevel *hl)
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write_unlock_irqrestore(&hl_irqs_lock, flags);
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down_write(&hl_drivers_sem);
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list_del(&hl->hl_list);
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list_del(&hl->hl_list);
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up_write(&hl_drivers_sem);
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nodemgr_for_each_host(hl, highlevel_for_each_host_unreg);
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@ -324,9 +301,11 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
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end = CSR1212_ALL_SPACE_END;
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}
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if (((start|end) & ~align_mask) || (start >= end) || (end > 0x1000000000000ULL)) {
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HPSB_ERR("%s called with invalid addresses (start = %012Lx end = %012Lx)",
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__FUNCTION__, (unsigned long long)start, (unsigned long long)end);
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if (((start|end) & ~align_mask) || (start >= end) ||
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(end > CSR1212_ALL_SPACE_END)) {
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HPSB_ERR("%s called with invalid addresses "
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"(start = %012Lx end = %012Lx)", __FUNCTION__,
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(unsigned long long)start,(unsigned long long)end);
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return retval;
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}
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@ -340,20 +319,21 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
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as->host = host;
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write_lock_irqsave(&addr_space_lock, flags);
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list_for_each(entry, &host->addr_space) {
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u64 a1sa, a1ea;
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u64 a2sa, a2ea;
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a1 = list_entry(entry, struct hpsb_address_serve, host_list);
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a2 = list_entry(entry->next, struct hpsb_address_serve, host_list);
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a2 = list_entry(entry->next, struct hpsb_address_serve,
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host_list);
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a1sa = a1->start & align_mask;
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a1ea = (a1->end + alignment -1) & align_mask;
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a2sa = a2->start & align_mask;
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a2ea = (a2->end + alignment -1) & align_mask;
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if ((a2sa - a1ea >= size) && (a2sa - start >= size) && (a2sa > start)) {
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if ((a2sa - a1ea >= size) && (a2sa - start >= size) &&
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(a2sa > start)) {
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as->start = max(start, a1ea);
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as->end = as->start + size;
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list_add(&as->host_list, entry);
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@ -362,47 +342,45 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
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break;
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}
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}
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write_unlock_irqrestore(&addr_space_lock, flags);
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if (retval == CSR1212_INVALID_ADDR_SPACE) {
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if (retval == CSR1212_INVALID_ADDR_SPACE)
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kfree(as);
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}
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return retval;
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}
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int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
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struct hpsb_address_ops *ops, u64 start, u64 end)
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struct hpsb_address_ops *ops, u64 start, u64 end)
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{
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struct hpsb_address_serve *as;
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struct hpsb_address_serve *as;
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struct list_head *lh;
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int retval = 0;
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unsigned long flags;
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int retval = 0;
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unsigned long flags;
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if (((start|end) & 3) || (start >= end) || (end > 0x1000000000000ULL)) {
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HPSB_ERR("%s called with invalid addresses", __FUNCTION__);
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return 0;
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}
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if (((start|end) & 3) || (start >= end) ||
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(end > CSR1212_ALL_SPACE_END)) {
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HPSB_ERR("%s called with invalid addresses", __FUNCTION__);
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return 0;
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}
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as = kmalloc(sizeof(*as), GFP_ATOMIC);
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if (!as)
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return 0;
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INIT_LIST_HEAD(&as->host_list);
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INIT_LIST_HEAD(&as->hl_list);
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as->op = ops;
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as->start = start;
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as->end = end;
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INIT_LIST_HEAD(&as->host_list);
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INIT_LIST_HEAD(&as->hl_list);
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as->op = ops;
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as->start = start;
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as->end = end;
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as->host = host;
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write_lock_irqsave(&addr_space_lock, flags);
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list_for_each(lh, &host->addr_space) {
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struct hpsb_address_serve *as_this =
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list_entry(lh, struct hpsb_address_serve, host_list);
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struct hpsb_address_serve *as_next =
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list_entry(lh->next, struct hpsb_address_serve, host_list);
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list_entry(lh->next, struct hpsb_address_serve,
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host_list);
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if (as_this->end > as->start)
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break;
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@ -418,60 +396,51 @@ int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
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if (retval == 0)
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kfree(as);
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return retval;
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return retval;
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}
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int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
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u64 start)
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u64 start)
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{
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int retval = 0;
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struct hpsb_address_serve *as;
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struct list_head *lh, *next;
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unsigned long flags;
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write_lock_irqsave(&addr_space_lock, flags);
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int retval = 0;
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struct hpsb_address_serve *as;
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struct list_head *lh, *next;
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unsigned long flags;
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write_lock_irqsave(&addr_space_lock, flags);
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list_for_each_safe (lh, next, &hl->addr_list) {
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as = list_entry(lh, struct hpsb_address_serve, hl_list);
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if (as->start == start && as->host == host) {
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as = list_entry(lh, struct hpsb_address_serve, hl_list);
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if (as->start == start && as->host == host) {
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__delete_addr(as);
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retval = 1;
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break;
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}
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}
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write_unlock_irqrestore(&addr_space_lock, flags);
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return retval;
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retval = 1;
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break;
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}
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}
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write_unlock_irqrestore(&addr_space_lock, flags);
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return retval;
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}
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int hpsb_listen_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
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unsigned int channel)
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unsigned int channel)
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{
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if (channel > 63) {
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HPSB_ERR("%s called with invalid channel", __FUNCTION__);
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return -EINVAL;
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}
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if (host->iso_listen_count[channel]++ == 0) {
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return host->driver->devctl(host, ISO_LISTEN_CHANNEL, channel);
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}
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if (channel > 63) {
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HPSB_ERR("%s called with invalid channel", __FUNCTION__);
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return -EINVAL;
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}
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if (host->iso_listen_count[channel]++ == 0)
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return host->driver->devctl(host, ISO_LISTEN_CHANNEL, channel);
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return 0;
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}
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void hpsb_unlisten_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
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unsigned int channel)
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unsigned int channel)
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{
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if (channel > 63) {
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HPSB_ERR("%s called with invalid channel", __FUNCTION__);
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return;
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}
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if (--host->iso_listen_count[channel] == 0) {
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host->driver->devctl(host, ISO_UNLISTEN_CHANNEL, channel);
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}
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if (channel > 63) {
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HPSB_ERR("%s called with invalid channel", __FUNCTION__);
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return;
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}
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if (--host->iso_listen_count[channel] == 0)
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host->driver->devctl(host, ISO_UNLISTEN_CHANNEL, channel);
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}
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static void init_hpsb_highlevel(struct hpsb_host *host)
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@ -492,26 +461,24 @@ static void init_hpsb_highlevel(struct hpsb_host *host)
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void highlevel_add_host(struct hpsb_host *host)
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{
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struct hpsb_highlevel *hl;
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struct hpsb_highlevel *hl;
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init_hpsb_highlevel(host);
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down_read(&hl_drivers_sem);
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list_for_each_entry(hl, &hl_drivers, hl_list) {
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list_for_each_entry(hl, &hl_drivers, hl_list) {
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if (hl->add_host)
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hl->add_host(host);
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}
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up_read(&hl_drivers_sem);
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if (host->update_config_rom) {
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if (hpsb_update_config_rom_image(host) < 0)
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HPSB_ERR("Failed to generate Configuration ROM image for "
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"host %s-%d", hl->name, host->id);
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}
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up_read(&hl_drivers_sem);
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if (host->update_config_rom && hpsb_update_config_rom_image(host) < 0)
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HPSB_ERR("Failed to generate Configuration ROM image for host "
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"%s-%d", hl->name, host->id);
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}
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void highlevel_remove_host(struct hpsb_host *host)
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{
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struct hpsb_highlevel *hl;
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struct hpsb_highlevel *hl;
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down_read(&hl_drivers_sem);
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list_for_each_entry(hl, &hl_drivers, hl_list)
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@ -522,186 +489,168 @@ void highlevel_remove_host(struct hpsb_host *host)
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void highlevel_host_reset(struct hpsb_host *host)
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{
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unsigned long flags;
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struct hpsb_highlevel *hl;
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struct hpsb_highlevel *hl;
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read_lock_irqsave(&hl_irqs_lock, flags);
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list_for_each_entry(hl, &hl_irqs, irq_list) {
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if (hl->host_reset)
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hl->host_reset(host);
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}
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if (hl->host_reset)
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hl->host_reset(host);
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}
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read_unlock_irqrestore(&hl_irqs_lock, flags);
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}
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void highlevel_iso_receive(struct hpsb_host *host, void *data, size_t length)
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{
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unsigned long flags;
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struct hpsb_highlevel *hl;
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int channel = (((quadlet_t *)data)[0] >> 8) & 0x3f;
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struct hpsb_highlevel *hl;
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int channel = (((quadlet_t *)data)[0] >> 8) & 0x3f;
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read_lock_irqsave(&hl_irqs_lock, flags);
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read_lock_irqsave(&hl_irqs_lock, flags);
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list_for_each_entry(hl, &hl_irqs, irq_list) {
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if (hl->iso_receive)
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hl->iso_receive(host, channel, data, length);
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}
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read_unlock_irqrestore(&hl_irqs_lock, flags);
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if (hl->iso_receive)
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hl->iso_receive(host, channel, data, length);
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}
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read_unlock_irqrestore(&hl_irqs_lock, flags);
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}
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void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
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void *data, size_t length)
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{
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unsigned long flags;
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struct hpsb_highlevel *hl;
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int cts = ((quadlet_t *)data)[0] >> 4;
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struct hpsb_highlevel *hl;
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int cts = ((quadlet_t *)data)[0] >> 4;
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read_lock_irqsave(&hl_irqs_lock, flags);
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read_lock_irqsave(&hl_irqs_lock, flags);
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list_for_each_entry(hl, &hl_irqs, irq_list) {
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if (hl->fcp_request)
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hl->fcp_request(host, nodeid, direction, cts, data,
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if (hl->fcp_request)
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hl->fcp_request(host, nodeid, direction, cts, data,
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length);
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}
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read_unlock_irqrestore(&hl_irqs_lock, flags);
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}
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read_unlock_irqrestore(&hl_irqs_lock, flags);
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}
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int highlevel_read(struct hpsb_host *host, int nodeid, void *data,
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u64 addr, unsigned int length, u16 flags)
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int highlevel_read(struct hpsb_host *host, int nodeid, void *data, u64 addr,
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unsigned int length, u16 flags)
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{
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struct hpsb_address_serve *as;
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unsigned int partlength;
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int rcode = RCODE_ADDRESS_ERROR;
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read_lock(&addr_space_lock);
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struct hpsb_address_serve *as;
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unsigned int partlength;
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int rcode = RCODE_ADDRESS_ERROR;
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read_lock(&addr_space_lock);
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list_for_each_entry(as, &host->addr_space, host_list) {
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if (as->start > addr)
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break;
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if (as->end > addr) {
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partlength = min(as->end - addr, (u64) length);
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if (as->end > addr) {
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partlength = min(as->end - addr, (u64) length);
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if (as->op->read) {
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rcode = as->op->read(host, nodeid, data,
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if (as->op->read)
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rcode = as->op->read(host, nodeid, data,
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addr, partlength, flags);
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} else {
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rcode = RCODE_TYPE_ERROR;
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}
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else
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rcode = RCODE_TYPE_ERROR;
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data += partlength;
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length -= partlength;
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addr += partlength;
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length -= partlength;
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addr += partlength;
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if ((rcode != RCODE_COMPLETE) || !length) {
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break;
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}
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}
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}
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if ((rcode != RCODE_COMPLETE) || !length)
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break;
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}
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}
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read_unlock(&addr_space_lock);
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read_unlock(&addr_space_lock);
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if (length && (rcode == RCODE_COMPLETE)) {
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rcode = RCODE_ADDRESS_ERROR;
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}
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return rcode;
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if (length && (rcode == RCODE_COMPLETE))
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rcode = RCODE_ADDRESS_ERROR;
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return rcode;
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}
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int highlevel_write(struct hpsb_host *host, int nodeid, int destid,
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void *data, u64 addr, unsigned int length, u16 flags)
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int highlevel_write(struct hpsb_host *host, int nodeid, int destid, void *data,
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u64 addr, unsigned int length, u16 flags)
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{
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struct hpsb_address_serve *as;
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unsigned int partlength;
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int rcode = RCODE_ADDRESS_ERROR;
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read_lock(&addr_space_lock);
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struct hpsb_address_serve *as;
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unsigned int partlength;
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int rcode = RCODE_ADDRESS_ERROR;
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read_lock(&addr_space_lock);
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list_for_each_entry(as, &host->addr_space, host_list) {
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if (as->start > addr)
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break;
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if (as->end > addr) {
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partlength = min(as->end - addr, (u64) length);
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if (as->end > addr) {
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partlength = min(as->end - addr, (u64) length);
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if (as->op->write) {
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rcode = as->op->write(host, nodeid, destid,
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data, addr, partlength, flags);
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} else {
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rcode = RCODE_TYPE_ERROR;
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}
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if (as->op->write)
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rcode = as->op->write(host, nodeid, destid,
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data, addr, partlength,
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flags);
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else
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rcode = RCODE_TYPE_ERROR;
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data += partlength;
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length -= partlength;
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addr += partlength;
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length -= partlength;
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addr += partlength;
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if ((rcode != RCODE_COMPLETE) || !length) {
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break;
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}
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}
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}
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if ((rcode != RCODE_COMPLETE) || !length)
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break;
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}
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}
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read_unlock(&addr_space_lock);
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read_unlock(&addr_space_lock);
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if (length && (rcode == RCODE_COMPLETE)) {
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rcode = RCODE_ADDRESS_ERROR;
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}
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return rcode;
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if (length && (rcode == RCODE_COMPLETE))
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rcode = RCODE_ADDRESS_ERROR;
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return rcode;
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}
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int highlevel_lock(struct hpsb_host *host, int nodeid, quadlet_t *store,
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u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, u16 flags)
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u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
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u16 flags)
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{
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struct hpsb_address_serve *as;
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int rcode = RCODE_ADDRESS_ERROR;
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read_lock(&addr_space_lock);
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struct hpsb_address_serve *as;
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int rcode = RCODE_ADDRESS_ERROR;
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read_lock(&addr_space_lock);
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list_for_each_entry(as, &host->addr_space, host_list) {
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if (as->start > addr)
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break;
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if (as->end > addr) {
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if (as->op->lock) {
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rcode = as->op->lock(host, nodeid, store, addr,
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data, arg, ext_tcode, flags);
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} else {
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rcode = RCODE_TYPE_ERROR;
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}
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break;
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}
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}
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read_unlock(&addr_space_lock);
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return rcode;
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if (as->end > addr) {
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if (as->op->lock)
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rcode = as->op->lock(host, nodeid, store, addr,
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data, arg, ext_tcode,
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flags);
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else
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rcode = RCODE_TYPE_ERROR;
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break;
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}
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}
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read_unlock(&addr_space_lock);
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return rcode;
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}
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int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
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u64 addr, octlet_t data, octlet_t arg, int ext_tcode, u16 flags)
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u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
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u16 flags)
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{
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struct hpsb_address_serve *as;
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int rcode = RCODE_ADDRESS_ERROR;
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struct hpsb_address_serve *as;
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int rcode = RCODE_ADDRESS_ERROR;
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read_lock(&addr_space_lock);
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read_lock(&addr_space_lock);
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list_for_each_entry(as, &host->addr_space, host_list) {
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if (as->start > addr)
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break;
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if (as->end > addr) {
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if (as->op->lock64) {
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rcode = as->op->lock64(host, nodeid, store,
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addr, data, arg,
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ext_tcode, flags);
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} else {
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rcode = RCODE_TYPE_ERROR;
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}
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break;
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}
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}
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read_unlock(&addr_space_lock);
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return rcode;
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if (as->end > addr) {
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if (as->op->lock64)
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rcode = as->op->lock64(host, nodeid, store,
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addr, data, arg,
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ext_tcode, flags);
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else
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rcode = RCODE_TYPE_ERROR;
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break;
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}
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}
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read_unlock(&addr_space_lock);
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return rcode;
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}
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