diff options
Diffstat (limited to 'drivers')
97 files changed, 2445 insertions, 1728 deletions
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 96309b9660d..11abc7bf777 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -285,6 +285,8 @@ static int __init acpi_ac_init(void) { int result; + if (acpi_disabled) + return -ENODEV; acpi_ac_dir = acpi_lock_ac_dir(); if (!acpi_ac_dir) diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index b0d4b147b19..1dda370f402 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -484,10 +484,8 @@ acpi_memory_register_notify_handler(acpi_handle handle, status = is_memory_device(handle); - if (ACPI_FAILURE(status)){ - ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device")); + if (ACPI_FAILURE(status)) return AE_OK; /* continue */ - } status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, acpi_memory_device_notify, NULL); @@ -503,10 +501,8 @@ acpi_memory_deregister_notify_handler(acpi_handle handle, status = is_memory_device(handle); - if (ACPI_FAILURE(status)){ - ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device")); + if (ACPI_FAILURE(status)) return AE_OK; /* continue */ - } status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY, diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 6e5221707d9..9810e2a55d0 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -757,6 +757,9 @@ static int __init acpi_battery_init(void) { int result; + if (acpi_disabled) + return -ENODEV; + acpi_battery_dir = acpi_lock_battery_dir(); if (!acpi_battery_dir) return -ENODEV; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index b2977695e12..279c4bac92e 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -25,6 +25,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/ioport.h> +#include <linux/kernel.h> #include <linux/list.h> #include <linux/sched.h> #include <linux/pm.h> @@ -68,7 +69,8 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device); if (ACPI_FAILURE(status) || !*device) { - ACPI_EXCEPTION((AE_INFO, status, "No context for object [%p]", handle)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", + handle)); return -ENODEV; } @@ -192,7 +194,7 @@ int acpi_bus_set_power(acpi_handle handle, int state) /* Make sure this is a valid target state */ if (!device->flags.power_manageable) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n", device->kobj.name)); return -ENODEV; } @@ -738,7 +740,10 @@ static int __init acpi_init(void) return -ENODEV; } - firmware_register(&acpi_subsys); + result = firmware_register(&acpi_subsys); + if (result < 0) + printk(KERN_WARNING "%s: firmware_register error: %d\n", + __FUNCTION__, result); result = acpi_bus_init(); diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c index 32c9d88fd19..1ba2db67186 100644 --- a/drivers/acpi/hotkey.c +++ b/drivers/acpi/hotkey.c @@ -91,6 +91,14 @@ enum { HK_EVENT_ENTERRING_S5, }; +enum conf_entry_enum { + bus_handle = 0, + bus_method = 1, + action_handle = 2, + method = 3, + LAST_CONF_ENTRY +}; + /* procdir we use */ static struct proc_dir_entry *hotkey_proc_dir; static struct proc_dir_entry *hotkey_config; @@ -244,19 +252,15 @@ static int hotkey_info_open_fs(struct inode *inode, struct file *file) static char *format_result(union acpi_object *object) { - char *buf = NULL; - - buf = (char *)kmalloc(RESULT_STR_LEN, GFP_KERNEL); - if (buf) - memset(buf, 0, RESULT_STR_LEN); - else - goto do_fail; + char *buf; + buf = kzalloc(RESULT_STR_LEN, GFP_KERNEL); + if (!buf) + return NULL; /* Now, just support integer type */ if (object->type == ACPI_TYPE_INTEGER) sprintf(buf, "%d\n", (u32) object->integer.value); - do_fail: - return (buf); + return buf; } static int hotkey_polling_seq_show(struct seq_file *seq, void *offset) @@ -486,98 +490,102 @@ static void free_hotkey_device(union acpi_hotkey *key) static void free_hotkey_buffer(union acpi_hotkey *key) { + /* key would never be null, action method could be */ kfree(key->event_hotkey.action_method); } static void free_poll_hotkey_buffer(union acpi_hotkey *key) { + /* key would never be null, others could be*/ kfree(key->poll_hotkey.action_method); kfree(key->poll_hotkey.poll_method); kfree(key->poll_hotkey.poll_result); } static int -init_hotkey_device(union acpi_hotkey *key, char *bus_str, char *action_str, - char *method, int std_num, int external_num) +init_hotkey_device(union acpi_hotkey *key, char **config_entry, + int std_num, int external_num) { acpi_handle tmp_handle; acpi_status status = AE_OK; - if (std_num < 0 || IS_POLL(std_num) || !key) goto do_fail; - if (!bus_str || !action_str || !method) + if (!config_entry[bus_handle] || !config_entry[action_handle] + || !config_entry[method]) goto do_fail; key->link.hotkey_type = ACPI_HOTKEY_EVENT; key->link.hotkey_standard_num = std_num; key->event_hotkey.flag = 0; - key->event_hotkey.action_method = method; + key->event_hotkey.action_method = config_entry[method]; - status = - acpi_get_handle(NULL, bus_str, &(key->event_hotkey.bus_handle)); + status = acpi_get_handle(NULL, config_entry[bus_handle], + &(key->event_hotkey.bus_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; key->event_hotkey.external_hotkey_num = external_num; - status = - acpi_get_handle(NULL, action_str, + status = acpi_get_handle(NULL, config_entry[action_handle], &(key->event_hotkey.action_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = acpi_get_handle(key->event_hotkey.action_handle, - method, &tmp_handle); + config_entry[method], &tmp_handle); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; return AE_OK; - do_fail: +do_fail_zero: + key->event_hotkey.action_method = NULL; +do_fail: return -ENODEV; } static int -init_poll_hotkey_device(union acpi_hotkey *key, - char *poll_str, - char *poll_method, - char *action_str, char *action_method, int std_num) +init_poll_hotkey_device(union acpi_hotkey *key, char **config_entry, + int std_num) { acpi_status status = AE_OK; acpi_handle tmp_handle; - if (std_num < 0 || IS_EVENT(std_num) || !key) goto do_fail; - - if (!poll_str || !poll_method || !action_str || !action_method) + if (!config_entry[bus_handle] ||!config_entry[bus_method] || + !config_entry[action_handle] || !config_entry[method]) goto do_fail; key->link.hotkey_type = ACPI_HOTKEY_POLLING; key->link.hotkey_standard_num = std_num; key->poll_hotkey.flag = 0; - key->poll_hotkey.poll_method = poll_method; - key->poll_hotkey.action_method = action_method; + key->poll_hotkey.poll_method = config_entry[bus_method]; + key->poll_hotkey.action_method = config_entry[method]; - status = - acpi_get_handle(NULL, poll_str, &(key->poll_hotkey.poll_handle)); + status = acpi_get_handle(NULL, config_entry[bus_handle], + &(key->poll_hotkey.poll_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = acpi_get_handle(key->poll_hotkey.poll_handle, - poll_method, &tmp_handle); + config_entry[bus_method], &tmp_handle); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = - acpi_get_handle(NULL, action_str, + acpi_get_handle(NULL, config_entry[action_handle], &(key->poll_hotkey.action_handle)); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; status = acpi_get_handle(key->poll_hotkey.action_handle, - action_method, &tmp_handle); + config_entry[method], &tmp_handle); if (ACPI_FAILURE(status)) - goto do_fail; + goto do_fail_zero; key->poll_hotkey.poll_result = (union acpi_object *)kmalloc(sizeof(union acpi_object), GFP_KERNEL); if (!key->poll_hotkey.poll_result) - goto do_fail; + goto do_fail_zero; return AE_OK; - do_fail: + +do_fail_zero: + key->poll_hotkey.poll_method = NULL; + key->poll_hotkey.action_method = NULL; +do_fail: return -ENODEV; } @@ -652,17 +660,18 @@ static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset) } static int -get_parms(char *config_record, - int *cmd, - char **bus_handle, - char **bus_method, - char **action_handle, - char **method, int *internal_event_num, int *external_event_num) +get_parms(char *config_record, int *cmd, char **config_entry, + int *internal_event_num, int *external_event_num) { +/* the format of *config_record = + * "1:\d+:*" : "cmd:internal_event_num" + * "\d+:\w+:\w+:\w+:\w+:\d+:\d+" : + * "cmd:bus_handle:bus_method:action_handle:method:internal_event_num:external_event_num" + */ char *tmp, *tmp1, count; + int i; sscanf(config_record, "%d", cmd); - if (*cmd == 1) { if (sscanf(config_record, "%d:%d", cmd, internal_event_num) != 2) @@ -674,59 +683,27 @@ get_parms(char *config_record, if (!tmp) goto do_fail; tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - - count = tmp1 - tmp; - *bus_handle = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*bus_handle) - goto do_fail; - strncpy(*bus_handle, tmp, count); - *(*bus_handle + count) = 0; - - tmp = tmp1; - tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - count = tmp1 - tmp; - *bus_method = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*bus_method) - goto do_fail; - strncpy(*bus_method, tmp, count); - *(*bus_method + count) = 0; - - tmp = tmp1; - tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - count = tmp1 - tmp; - *action_handle = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*action_handle) - goto do_fail; - strncpy(*action_handle, tmp, count); - *(*action_handle + count) = 0; - - tmp = tmp1; - tmp++; - tmp1 = strchr(tmp, ':'); - if (!tmp1) - goto do_fail; - count = tmp1 - tmp; - *method = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!*method) - goto do_fail; - strncpy(*method, tmp, count); - *(*method + count) = 0; - - if (sscanf(tmp1 + 1, "%d:%d", internal_event_num, external_event_num) <= - 0) - goto do_fail; - - return 6; - do_fail: + for (i = 0; i < LAST_CONF_ENTRY; i++) { + tmp1 = strchr(tmp, ':'); + if (!tmp1) { + goto do_fail; + } + count = tmp1 - tmp; + config_entry[i] = kzalloc(count + 1, GFP_KERNEL); + if (!config_entry[i]) + goto handle_failure; + strncpy(config_entry[i], tmp, count); + tmp = tmp1 + 1; + } + if (sscanf(tmp, "%d:%d", internal_event_num, external_event_num) <= 0) + goto handle_failure; + if (!IS_OTHERS(*internal_event_num)) { + return 6; + } +handle_failure: + while (i-- > 0) + kfree(config_entry[i]); +do_fail: return -1; } @@ -736,50 +713,34 @@ static ssize_t hotkey_write_config(struct file *file, size_t count, loff_t * data) { char *config_record = NULL; - char *bus_handle = NULL; - char *bus_method = NULL; - char *action_handle = NULL; - char *method = NULL; + char *config_entry[LAST_CONF_ENTRY]; int cmd, internal_event_num, external_event_num; int ret = 0; - union acpi_hotkey *key = NULL; + union acpi_hotkey *key = kzalloc(sizeof(union acpi_hotkey), GFP_KERNEL); + if (!key) + return -ENOMEM; - config_record = (char *)kmalloc(count + 1, GFP_KERNEL); - if (!config_record) + config_record = kzalloc(count + 1, GFP_KERNEL); + if (!config_record) { + kfree(key); return -ENOMEM; + } if (copy_from_user(config_record, buffer, count)) { kfree(config_record); + kfree(key); printk(KERN_ERR PREFIX "Invalid data\n"); return -EINVAL; } - config_record[count] = 0; - - ret = get_parms(config_record, - &cmd, - &bus_handle, - &bus_method, - &action_handle, - &method, &internal_event_num, &external_event_num); - + ret = get_parms(config_record, &cmd, config_entry, + &internal_event_num, &external_event_num); kfree(config_record); - if (IS_OTHERS(internal_event_num)) - goto do_fail; if (ret != 6) { - do_fail: - kfree(bus_handle); - kfree(bus_method); - kfree(action_handle); - kfree(method); printk(KERN_ERR PREFIX "Invalid data format ret=%d\n", ret); return -EINVAL; } - key = kmalloc(sizeof(union acpi_hotkey), GFP_KERNEL); - if (!key) - goto do_fail; - memset(key, 0, sizeof(union acpi_hotkey)); if (cmd == 1) { union acpi_hotkey *tmp = NULL; tmp = get_hotkey_by_event(&global_hotkey_list, @@ -791,34 +752,19 @@ static ssize_t hotkey_write_config(struct file *file, goto cont_cmd; } if (IS_EVENT(internal_event_num)) { - kfree(bus_method); - ret = init_hotkey_device(key, bus_handle, action_handle, method, - internal_event_num, - external_event_num); - } else - ret = init_poll_hotkey_device(key, bus_handle, bus_method, - action_handle, method, - internal_event_num); - if (ret) { - kfree(bus_handle); - kfree(action_handle); - if (IS_EVENT(internal_event_num)) - free_hotkey_buffer(key); - else - free_poll_hotkey_buffer(key); - kfree(key); - printk(KERN_ERR PREFIX "Invalid hotkey\n"); - return -EINVAL; + if (init_hotkey_device(key, config_entry, + internal_event_num, external_event_num)) + goto init_hotkey_fail; + } else { + if (init_poll_hotkey_device(key, config_entry, + internal_event_num)) + goto init_poll_hotkey_fail; } - - cont_cmd: - kfree(bus_handle); - kfree(action_handle); - +cont_cmd: switch (cmd) { case 0: - if (get_hotkey_by_event - (&global_hotkey_list, key->link.hotkey_standard_num)) + if (get_hotkey_by_event(&global_hotkey_list, + key->link.hotkey_standard_num)) goto fail_out; else hotkey_add(key); @@ -827,6 +773,7 @@ static ssize_t hotkey_write_config(struct file *file, hotkey_remove(key); break; case 2: + /* key is kfree()ed if matched*/ if (hotkey_update(key)) goto fail_out; break; @@ -835,11 +782,22 @@ static ssize_t hotkey_write_config(struct file *file, break; } return count; - fail_out: - if (IS_EVENT(internal_event_num)) - free_hotkey_buffer(key); - else - free_poll_hotkey_buffer(key); + +init_poll_hotkey_fail: /* failed init_poll_hotkey_device */ + kfree(config_entry[bus_method]); + config_entry[bus_method] = NULL; +init_hotkey_fail: /* failed init_hotkey_device */ + kfree(config_entry[method]); +fail_out: + kfree(config_entry[bus_handle]); + kfree(config_entry[action_handle]); + /* No double free since elements =NULL for error cases */ + if (IS_EVENT(internal_event_num)) { + if (config_entry[bus_method]) + kfree(config_entry[bus_method]); + free_hotkey_buffer(key); /* frees [method] */ + } else + free_poll_hotkey_buffer(key); /* frees [bus_method]+[method] */ kfree(key); printk(KERN_ERR PREFIX "invalid key\n"); return -EINVAL; @@ -923,10 +881,9 @@ static ssize_t hotkey_execute_aml_method(struct file *file, union acpi_hotkey *key; - arg = (char *)kmalloc(count + 1, GFP_KERNEL); + arg = kzalloc(count + 1, GFP_KERNEL); if (!arg) return -ENOMEM; - arg[count] = 0; if (copy_from_user(arg, buffer, count)) { kfree(arg); diff --git a/drivers/acpi/i2c_ec.c b/drivers/acpi/i2c_ec.c index 84239d51dc0..6809c283ec5 100644 --- a/drivers/acpi/i2c_ec.c +++ b/drivers/acpi/i2c_ec.c @@ -330,7 +330,7 @@ static int acpi_ec_hc_add(struct acpi_device *device) status = acpi_evaluate_integer(ec_hc->handle, "_EC", NULL, &val); if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Error obtaining _EC\n")); - kfree(ec_hc->smbus); + kfree(ec_hc); kfree(smbus); return -EIO; } diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index b7d1514cd19..507f051d1ce 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -746,6 +746,16 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout) ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n", handle, units, timeout)); + /* + * This can be called during resume with interrupts off. + * Like boot-time, we should be single threaded and will + * always get the lock if we try -- timeout or not. + * If this doesn't succeed, then we will oops courtesy of + * might_sleep() in down(). + */ + if (!down_trylock(sem)) + return AE_OK; + switch (timeout) { /* * No Wait: diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index db7b350a503..62bef0b3b61 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -1714,6 +1714,9 @@ static int __init acpi_sbs_init(void) { int result = 0; + if (acpi_disabled) + return -ENODEV; + init_MUTEX(&sbs_sem); if (capacity_mode != DEF_CAPACITY_UNIT diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 5fcb50c7b77..698a1540e30 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -4,6 +4,7 @@ #include <linux/module.h> #include <linux/init.h> +#include <linux/kernel.h> #include <linux/acpi.h> #include <acpi/acpi_drivers.h> @@ -113,6 +114,8 @@ static struct kset acpi_namespace_kset = { static void acpi_device_register(struct acpi_device *device, struct acpi_device *parent) { + int err; + /* * Linkage * ------- @@ -138,7 +141,10 @@ static void acpi_device_register(struct acpi_device *device, device->kobj.parent = &parent->kobj; device->kobj.ktype = &ktype_acpi_ns; device->kobj.kset = &acpi_namespace_kset; - kobject_register(&device->kobj); + err = kobject_register(&device->kobj); + if (err < 0) + printk(KERN_WARNING "%s: kobject_register error: %d\n", + __FUNCTION__, err); create_sysfs_device_files(device); } @@ -1450,7 +1456,9 @@ static int __init acpi_scan_init(void) if (acpi_disabled) return 0; - kset_register(&acpi_namespace_kset); + result = kset_register(&acpi_namespace_kset); + if (result < 0) + printk(KERN_ERR PREFIX "kset_register error: %d\n", result); result = bus_register(&acpi_bus_type); if (result) { diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index f48227f4c8c..d0d84c43a9d 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -262,7 +262,7 @@ acpi_evaluate_integer(acpi_handle handle, if (!data) return AE_BAD_PARAMETER; - element = kmalloc(sizeof(union acpi_object), GFP_KERNEL); + element = kmalloc(sizeof(union acpi_object), irqs_disabled() ? GFP_ATOMIC: GFP_KERNEL); if (!element) return AE_NO_MEMORY; diff --git a/drivers/base/node.c b/drivers/base/node.c index d7de1753e09..e9b0957f15d 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -64,7 +64,7 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf) "Node %d Mapped: %8lu kB\n" "Node %d AnonPages: %8lu kB\n" "Node %d PageTables: %8lu kB\n" - "Node %d NFS Unstable: %8lu kB\n" + "Node %d NFS_Unstable: %8lu kB\n" "Node %d Bounce: %8lu kB\n" "Node %d Slab: %8lu kB\n", nid, K(i.totalram), diff --git a/drivers/cdrom/gscd.c b/drivers/cdrom/gscd.c index b6ee50a2916..fa708248976 100644 --- a/drivers/cdrom/gscd.c +++ b/drivers/cdrom/gscd.c @@ -266,7 +266,7 @@ repeat: goto out; if (req->cmd != READ) { - printk("GSCD: bad cmd %lu\n", rq_data_dir(req)); + printk("GSCD: bad cmd %u\n", rq_data_dir(req)); end_request(req, 0); goto repeat; } diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index 4ea7bd5f4f5..a369dd6877d 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -142,6 +142,7 @@ typedef struct _moxa_board_conf { static moxa_board_conf moxa_boards[MAX_BOARDS]; static void __iomem *moxaBaseAddr[MAX_BOARDS]; +static int loadstat[MAX_BOARDS]; struct moxa_str { int type; @@ -1688,6 +1689,8 @@ int MoxaDriverPoll(void) if (moxaCard == 0) return (-1); for (card = 0; card < MAX_BOARDS; card++) { + if (loadstat[card] == 0) + continue; if ((ports = moxa_boards[card].numPorts) == 0) continue; if (readb(moxaIntPend[card]) == 0xff) { @@ -2903,6 +2906,7 @@ static int moxaloadcode(int cardno, unsigned char __user *tmp, int len) } break; } + loadstat[cardno] = 1; return (0); } @@ -2920,7 +2924,7 @@ static int moxaloadc218(int cardno, void __iomem *baseAddr, int len) len1 = len >> 1; ptr = (ushort *) moxaBuff; for (i = 0; i < len1; i++) - usum += *(ptr + i); + usum += le16_to_cpu(*(ptr + i)); retry = 0; do { len1 = len >> 1; @@ -2992,7 +2996,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor wlen = len >> 1; uptr = (ushort *) moxaBuff; for (i = 0; i < wlen; i++) - usum += uptr[i]; + usum += le16_to_cpu(uptr[i]); retry = 0; j = 0; do { diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index bfdb90242a9..bb0d9199e99 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -153,6 +153,15 @@ int tty_ioctl(struct inode * inode, struct file * file, static int tty_fasync(int fd, struct file * filp, int on); static void release_mem(struct tty_struct *tty, int idx); +/** + * alloc_tty_struct - allocate a tty object + * + * Return a new empty tty structure. The data fields have not + * been initialized in any way but has been zeroed + * + * Locking: none + * FIXME: use kzalloc + */ static struct tty_struct *alloc_tty_struct(void) { @@ -166,6 +175,15 @@ static struct tty_struct *alloc_tty_struct(void) static void tty_buffer_free_all(struct tty_struct *); +/** + * free_tty_struct - free a disused tty + * @tty: tty struct to free + * + * Free the write buffers, tty queue and tty memory itself. + * + * Locking: none. Must be called after tty is definitely unused + */ + static inline void free_tty_struct(struct tty_struct *tty) { kfree(tty->write_buf); @@ -175,6 +193,17 @@ static inline void free_tty_struct(struct tty_struct *tty) #define TTY_NUMBER(tty) ((tty)->index + (tty)->driver->name_base) +/** + * tty_name - return tty naming + * @tty: tty structure + * @buf: buffer for output + * + * Convert a tty structure into a name. The name reflects the kernel + * naming policy and if udev is in use may not reflect user space + * + * Locking: none + */ + char *tty_name(struct tty_struct *tty, char *buf) { if (!tty) /* Hmm. NULL pointer. That's fun. */ @@ -235,6 +264,28 @@ static int check_tty_count(struct tty_struct *tty, const char *routine) * Tty buffer allocation management */ + +/** + * tty_buffer_free_all - free buffers used by a tty + * @tty: tty to free from + * + * Remove all the buffers pending on a tty whether queued with data + * or in the free ring. Must be called when the tty is no longer in use + * + * Locking: none + */ + + +/** + * tty_buffer_free_all - free buffers used by a tty + * @tty: tty to free from + * + * Remove all the buffers pending on a tty whether queued with data + * or in the free ring. Must be called when the tty is no longer in use + * + * Locking: none + */ + static void tty_buffer_free_all(struct tty_struct *tty) { struct tty_buffer *thead; @@ -247,19 +298,47 @@ static void tty_buffer_free_all(struct tty_struct *tty) kfree(thead); } tty->buf.tail = NULL; + tty->buf.memory_used = 0; } +/** + * tty_buffer_init - prepare a tty buffer structure + * @tty: tty to initialise + * + * Set up the initial state of the buffer management for a tty device. + * Must be called before the other tty buffer functions are used. + * + * Locking: none + */ + static void tty_buffer_init(struct tty_struct *tty) { spin_lock_init(&tty->buf.lock); tty->buf.head = NULL; tty->buf.tail = NULL; tty->buf.free = NULL; + tty->buf.memory_used = 0; } -static struct tty_buffer *tty_buffer_alloc(size_t size) +/** + * tty_buffer_alloc - allocate a tty buffer + * @tty: tty device + * @size: desired size (characters) + * + * Allocate a new tty buffer to hold the desired number of characters. + * Return NULL if out of memory or the allocation would exceed the + * per device queue + * + * Locking: Caller must hold tty->buf.lock + */ + +static struct tty_buffer *tty_buffer_alloc(struct tty_struct *tty, size_t size) { - struct tty_buffer *p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC); + struct tty_buffer *p; + + if (tty->buf.memory_used + size > 65536) + return NULL; + p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC); if(p == NULL) return NULL; p->used = 0; @@ -269,17 +348,27 @@ static struct tty_buffer *tty_buffer_alloc(size_t size) p->read = 0; p->char_buf_ptr = (char *)(p->data); p->flag_buf_ptr = (unsigned char *)p->char_buf_ptr + size; -/* printk("Flip create %p\n", p); */ + tty->buf.memory_used += size; return p; } -/* Must be called with the tty_read lock held. This needs to acquire strategy - code to decide if we should kfree or relink a given expired buffer */ +/** + * tty_buffer_free - free a tty buffer + * @tty: tty owning the buffer + * @b: the buffer to free + * + * Free a tty buffer, or add it to the free list according to our + * internal strategy + * + * Locking: Caller must hold tty->buf.lock + */ static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b) { /* Dumb strategy for now - should keep some stats */ -/* printk("Flip dispose %p\n", b); */ + tty->buf.memory_used -= b->size; + WARN_ON(tty->buf.memory_used < 0); + if(b->size >= 512) kfree(b); else { @@ -288,6 +377,18 @@ static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b) } } +/** + * tty_buffer_find - find a free tty buffer + * @tty: tty owning the buffer + * @size: characters wanted + * + * Locate an existing suitable tty buffer or if we are lacking one then + * allocate a new one. We round our buffers off in 256 character chunks + * to get better allocation behaviour. + * + * Locking: Caller must hold tty->buf.lock + */ + static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size) { struct tty_buffer **tbh = &tty->buf.free; @@ -299,20 +400,28 @@ static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size) t->used = 0; t->commit = 0; t->read = 0; - /* DEBUG ONLY */ -/* memset(t->data, '*', size); */ -/* printk("Flip recycle %p\n", t); */ + tty->buf.memory_used += t->size; return t; } tbh = &((*tbh)->next); } /* Round the buffer size out */ size = (size + 0xFF) & ~ 0xFF; - return tty_buffer_alloc(size); + return tty_buffer_alloc(tty, size); /* Should possibly check if this fails for the largest buffer we have queued and recycle that ? */ } +/** + * tty_buffer_request_room - grow tty buffer if needed + * @tty: tty structure + * @size: size desired + * + * Make at least size bytes of linear space available for the tty + * buffer. If we fail return the size we managed to find. + * + * Locking: Takes tty->buf.lock + */ int tty_buffer_request_room(struct tty_struct *tty, size_t size) { struct tty_buffer *b, *n; @@ -347,6 +456,18 @@ int tty_buffer_request_room(struct tty_struct *tty, size_t size) } EXPORT_SYMBOL_GPL(tty_buffer_request_room); +/** + * tty_insert_flip_string - Add characters to the tty buffer + * @tty: tty structure + * @chars: characters + * @size: size + * + * Queue a series of bytes to the tty buffering. All the characters + * passed are marked as without error. Returns the number added. + * + * Locking: Called functions may take tty->buf.lock + */ + int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size) { @@ -370,6 +491,20 @@ int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, } EXPORT_SYMBOL(tty_insert_flip_string); +/** + * tty_insert_flip_string_flags - Add characters to the tty buffer + * @tty: tty structure + * @chars: characters + * @flags: flag bytes + * @size: size + * + * Queue a series of bytes to the tty buffering. For each character + * the flags array indicates the status of the character. Returns the + * number added. + * + * Locking: Called functions may take tty->buf.lock + */ + int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size) { @@ -394,6 +529,17 @@ int tty_insert_flip_string_flags(struct tty_struct *tty, } EXPORT_SYMBOL(tty_insert_flip_string_flags); +/** + * tty_schedule_flip - push characters to ldisc + * @tty: tty to push from + * + * Takes any pending buffers and transfers their ownership to the + * ldisc side of the queue. It then schedules those characters for + * processing by the line discipline. + * + * Locking: Takes tty->buf.lock + */ + void tty_schedule_flip(struct tty_struct *tty) { unsigned long flags; @@ -405,12 +551,19 @@ void tty_schedule_flip(struct tty_struct *tty) } EXPORT_SYMBOL(tty_schedule_flip); -/* +/** + * tty_prepare_flip_string - make room for characters + * @tty: tty + * @chars: return pointer for character write area + * @size: desired size + * * Prepare a block of space in the buffer for data. Returns the length * available and buffer pointer to the space which is now allocated and * accounted for as ready for normal characters. This is used for drivers * that need their own block copy routines into the buffer. There is no * guarantee the buffer is a DMA target! + * + * Locking: May call functions taking tty->buf.lock */ int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size) @@ -427,12 +580,20 @@ int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_ EXPORT_SYMBOL_GPL(tty_prepare_flip_string); -/* +/** + * tty_prepare_flip_string_flags - make room for characters + * @tty: tty + * @chars: return pointer for character write area + * @flags: return pointer for status flag write area + * @size: desired size + * * Prepare a block of space in the buffer for data. Returns the length * available and buffer pointer to the space which is now allocated and * accounted for as ready for characters. This is used for drivers * that need their own block copy routines into the buffer. There is no * guarantee the buffer is a DMA target! + * + * Locking: May call functions taking tty->buf.lock */ int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size) @@ -451,10 +612,16 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string_flags); -/* +/** + * tty_set_termios_ldisc - set ldisc field + * @tty: tty structure + * @num: line discipline number + * * This is probably overkill for real world processors but * they are not on hot paths so a little discipline won't do * any harm. + * + * Locking: takes termios_sem */ static void tty_set_termios_ldisc(struct tty_struct *tty, int num) @@ -474,6 +641,19 @@ static DEFINE_SPINLOCK(tty_ldisc_lock); static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait); static struct tty_ldisc tty_ldiscs[NR_LDISCS]; /* line disc dispatch table */ +/** + * tty_register_ldisc - install a line discipline + * @disc: ldisc number + * @new_ldisc: pointer to the ldisc object + * + * Installs a new line discipline into the kernel. The discipline + * is set up as unreferenced and then made available to the kernel + * from this point onwards. + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc) { unsigned long flags; @@ -493,6 +673,18 @@ int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc) } EXPORT_SYMBOL(tty_register_ldisc); +/** + * tty_unregister_ldisc - unload a line discipline + * @disc: ldisc number + * @new_ldisc: pointer to the ldisc object + * + * Remove a line discipline from the kernel providing it is not + * currently in use. + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + int tty_unregister_ldisc(int disc) { unsigned long flags; @@ -512,6 +704,19 @@ int tty_unregister_ldisc(int disc) } EXPORT_SYMBOL(tty_unregister_ldisc); +/** + * tty_ldisc_get - take a reference to an ldisc + * @disc: ldisc number + * + * Takes a reference to a line discipline. Deals with refcounts and + * module locking counts. Returns NULL if the discipline is not available. + * Returns a pointer to the discipline and bumps the ref count if it is + * available + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + struct tty_ldisc *tty_ldisc_get(int disc) { unsigned long flags; @@ -540,6 +745,17 @@ struct tty_ldisc *tty_ldisc_get(int disc) EXPORT_SYMBOL_GPL(tty_ldisc_get); +/** + * tty_ldisc_put - drop ldisc reference + * @disc: ldisc number + * + * Drop a reference to a line discipline. Manage refcounts and + * module usage counts + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + void tty_ldisc_put(int disc) { struct tty_ldisc *ld; @@ -557,6 +773,19 @@ void tty_ldisc_put(int disc) EXPORT_SYMBOL_GPL(tty_ldisc_put); +/** + * tty_ldisc_assign - set ldisc on a tty + * @tty: tty to assign + * @ld: line discipline + * + * Install an instance of a line discipline into a tty structure. The + * ldisc must have a reference count above zero to ensure it remains/ + * The tty instance refcount starts at zero. + * + * Locking: + * Caller must hold references + */ + static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) { tty->ldisc = *ld; @@ -571,6 +800,8 @@ static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) * the tty ldisc. Return 0 on failure or 1 on success. This is * used to implement both the waiting and non waiting versions * of tty_ldisc_ref + * + * Locking: takes tty_ldisc_lock */ static int tty_ldisc_try(struct tty_struct *tty) @@ -602,6 +833,8 @@ static int tty_ldisc_try(struct tty_struct *tty) * must also be careful not to hold other locks that will deadlock * against a discipline change, such as an existing ldisc reference * (which we check for) + * + * Locking: call functions take tty_ldisc_lock */ struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty) @@ -622,6 +855,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); * Dereference the line discipline for the terminal and take a * reference to it. If the line discipline is in flux then * return NULL. Can be called from IRQ and timer functions. + * + * Locking: called functions take tty_ldisc_lock */ struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty) @@ -639,6 +874,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref); * * Undoes the effect of tty_ldisc_ref or tty_ldisc_ref_wait. May * be called in IRQ context. + * + * Locking: takes tty_ldisc_lock */ void tty_ldisc_deref(struct tty_ldisc *ld) @@ -683,6 +920,9 @@ static void tty_ldisc_enable(struct tty_struct *tty) * * Set the discipline of a tty line. Must be called from a process * context. + * + * Locking: takes tty_ldisc_lock. + * called functions take termios_sem */ static int tty_set_ldisc(struct tty_struct *tty, int ldisc) @@ -846,9 +1086,17 @@ restart: return retval; } -/* - * This routine returns a tty driver structure, given a device number +/** + * get_tty_driver - find device of a tty + * @dev_t: device identifier + * @index: returns the index of the tty + * + * This routine returns a tty driver structure, given a device number + * and also passes back the index number. + * + * Locking: caller must hold tty_mutex */ + static struct tty_driver *get_tty_driver(dev_t device, int *index) { struct tty_driver *p; @@ -863,11 +1111,17 @@ static struct tty_driver *get_tty_driver(dev_t device, int *index) return NULL; } -/* - * If we try to write to, or set the state of, a terminal and we're - * not in the foreground, send a SIGTTOU. If the signal is blocked or - * ignored, go ahead and perform the operation. (POSIX 7.2) +/** + * tty_check_change - check for POSIX terminal changes + * @tty: tty to check + * + * If we try to write to, or set the state of, a terminal and we're + * not in the foreground, send a SIGTTOU. If the signal is blocked or + * ignored, go ahead and perform the operation. (POSIX 7.2) + * + * Locking: none */ + int tty_check_change(struct tty_struct * tty) { if (current->signal->tty != tty) @@ -1005,10 +1259,27 @@ void tty_ldisc_flush(struct tty_struct *tty) EXPORT_SYMBOL_GPL(tty_ldisc_flush); -/* - * This can be called by the "eventd" kernel thread. That is process synchronous, - * but doesn't hold any locks, so we need to make sure we have the appropriate - * locks for what we're doing.. +/** + * do_tty_hangup - actual handler for hangup events + * @data: tty device + * + * This can be called by the "eventd" kernel thread. That is process + * synchronous but doesn't hold any locks, so we need to make sure we + * have the appropriate locks for what we're doing. + * + * The hangup event clears any pending redirections onto the hung up + * device. It ensures future writes will error and it does the needed + * line discipline hangup and signal delivery. The tty object itself + * remains intact. + * + * Locking: + * BKL + * redirect lock for undoing redirection + * file list lock for manipulating list of ttys + * tty_ldisc_lock from called functions + * termios_sem resetting termios data + * tasklist_lock to walk task list for hangup event + * */ static void do_tty_hangup(void *data) { @@ -1133,6 +1404,14 @@ static void do_tty_hangup(void *data) fput(f); } +/** + * tty_hangup - trigger a hangup event + * @tty: tty to hangup + * + * A carrier loss (virtual or otherwise) has occurred on this like + * schedule a hangup sequence to run after this event. + */ + void tty_hangup(struct tty_struct * tty) { #ifdef TTY_DEBUG_HANGUP @@ -1145,6 +1424,15 @@ void tty_hangup(struct tty_struct * tty) EXPORT_SYMBOL(tty_hangup); +/** + * tty_vhangup - process vhangup + * @tty: tty to hangup + * + * The user has asked via system call for the terminal to be hung up. + * We do this synchronously so that when the syscall returns the process + * is complete. That guarantee is neccessary for security reasons. + */ + void tty_vhangup(struct tty_struct * tty) { #ifdef TTY_DEBUG_HANGUP @@ -1156,6 +1444,14 @@ void tty_vhangup(struct tty_struct * tty) } EXPORT_SYMBOL(tty_vhangup); +/** + * tty_hung_up_p - was tty hung up + * @filp: file pointer of tty + * + * Return true if the tty has been subject to a vhangup or a carrier + * loss + */ + int tty_hung_up_p(struct file * filp) { return (filp->f_op == &hung_up_tty_fops); @@ -1163,19 +1459,28 @@ int tty_hung_up_p(struct file * filp) EXPORT_SYMBOL(tty_hung_up_p); -/* - * This function is typically called only by the session leader, when - * it wants to disassociate itself from its controlling tty. +/** + * disassociate_ctty - disconnect controlling tty + * @on_exit: true if exiting so need to "hang up" the session + * + * This function is typically called only by the session leader, when + * it wants to disassociate itself from its controlling tty. * - * It performs the following functions: + * It performs the following functions: * (1) Sends a SIGHUP and SIGCONT to the foreground process group * (2) Clears the tty from being controlling the session * (3) Clears the controlling tty for all processes in the * session group. * - * The argument on_exit is set to 1 if called when a process is - * exiting; it is 0 if called by the ioctl TIOCNOTTY. + * The argument on_exit is set to 1 if called when a process is + * exiting; it is 0 if called by the ioctl TIOCNOTTY. + * + * Locking: tty_mutex is taken to protect current->signal->tty + * BKL is taken for hysterical raisins + * Tasklist lock is taken (under tty_mutex) to walk process + * lists for the session. */ + void disassociate_ctty(int on_exit) { struct tty_struct *tty; @@ -1222,6 +1527,25 @@ void disassociate_ctty(int on_exit) unlock_kernel(); } + +/** + * stop_tty - propogate flow control + * @tty: tty to stop + * + * Perform flow control to the driver. For PTY/TTY pairs we + * must also propogate the TIOCKPKT status. May be called + * on an already stopped device and will not re-call the driver + * method. + * + * This functionality is used by both the line disciplines for + * halting incoming flow and by the driver. It may therefore be + * called from any context, may be under the tty atomic_write_lock + * but not always. + * + * Locking: + * Broken. Relies on BKL which is unsafe here. + */ + void stop_tty(struct tty_struct *tty) { if (tty->stopped) @@ -1238,6 +1562,19 @@ void stop_tty(struct tty_struct *tty) EXPORT_SYMBOL(stop_tty); +/** + * start_tty - propogate flow control + * @tty: tty to start + * + * Start a tty that has been stopped if at all possible. Perform + * any neccessary wakeups and propogate the TIOCPKT status. If this + * is the tty was previous stopped and is being started then the + * driver start method is invoked and the line discipline woken. + * + * Locking: + * Broken. Relies on BKL which is unsafe here. + */ + void start_tty(struct tty_struct *tty) { if (!tty->stopped || tty->flow_stopped) @@ -1258,6 +1595,23 @@ void start_tty(struct tty_struct *tty) EXPORT_SYMBOL(start_tty); +/** + * tty_read - read method for tty device files + * @file: pointer to tty file + * @buf: user buffer + * @count: size of user buffer + * @ppos: unused + * + * Perform the read system call function on this terminal device. Checks + * for hung up devices before calling the line discipline method. + * + * Locking: + * Locks the line discipline internally while needed + * For historical reasons the line discipline read method is + * invoked under the BKL. This will go away in time so do not rely on it + * in new code. Multiple read calls may be outstanding in parallel. + */ + static ssize_t tty_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { @@ -1302,6 +1656,7 @@ static inline ssize_t do_tty_write( ssize_t ret = 0, written = 0; unsigned int chunk; + /* FIXME: O_NDELAY ... */ if (mutex_lock_interruptible(&tty->atomic_write_lock)) { return -ERESTARTSYS; } @@ -1318,6 +1673,9 @@ static inline ssize_t do_tty_write( * layer has problems with bigger chunks. It will * claim to be able to handle more characters than * it actually does. + * + * FIXME: This can probably go away now except that 64K chunks + * are too likely to fail unless switched to vmalloc... */ chunk = 2048; if (test_bit(TTY_NO_WRITE_SPLIT, &tty->flags)) @@ -1375,6 +1733,24 @@ static inline ssize_t do_tty_write( } +/** + * tty_write - write method for tty device file + * @file: tty file pointer + * @buf: user data to write + * @count: bytes to write + * @ppos: unused + * + * Write data to a tty device via the line discipline. + * + * Locking: + * Locks the line discipline as required + * Writes to the tty driver are serialized by the atomic_write_lock + * and are then processed in chunks to the device. The line discipline + * write method will not be involked in parallel for each device + * The line discipline write method is called under the big + * kernel lock for historical reasons. New code should not rely on this. + */ + static ssize_t tty_write(struct file * file, const char __user * buf, size_t count, loff_t *ppos) { @@ -1422,7 +1798,18 @@ ssize_t redirected_tty_write(struct file * file, const char __user * buf, size_t static char ptychar[] = "pqrstuvwxyzabcde"; -static inline void pty_line_name(struct tty_driver *driver, int index, char *p) +/** + * pty_line_name - generate name for a pty + * @driver: the tty driver in use + * @index: the minor number + * @p: output buffer of at least 6 bytes + * + * Generate a name from a driver reference and write it to the output + * buffer. + * + * Locking: None + */ +static void pty_line_name(struct tty_driver *driver, int index, char *p) { int i = index + driver->name_base; /* ->name is initialized to "ttyp", but "tty" is expected */ @@ -1431,24 +1818,53 @@ static inline void pty_line_name(struct tty_driver *driver, int index, char *p) ptychar[i >> 4 & 0xf], i & 0xf); } -static inline void tty_line_name(struct tty_driver *driver, int index, char *p) +/** + * pty_line_name - generate name for a tty + * @driver: the tty driver in use + * @index: the minor number + * @p: output buffer of at least 7 bytes + * + * Generate a name from a driver reference and write it to the output + * buffer. + * + * Locking: None + */ +static void tty_line_name(struct tty_driver *driver, int index, char *p) { sprintf(p, "%s%d", driver->name, index + driver->name_base); } -/* +/** + * init_dev - initialise a tty device + * @driver: tty driver we are opening a device on + * @idx: device index + * @tty: returned tty structure + * + * Prepare a tty device. This may not be a "new" clean device but + * could also be an active device. The pty drivers require special + * handling because of this. + * + * Locking: + * The function is called under the tty_mutex, which + * protects us from the tty struct or driver itself going away. + * + * On exit the tty device has the line discipline attached and + * a reference count of 1. If a pair was created for pty/tty use + * and the other was a pty master then it too has a reference count of 1. + * * WSH 06/09/97: Rewritten to remove races and properly clean up after a * failed open. The new code protects the open with a mutex, so it's * really quite straightforward. The mutex locking can probably be * relaxed for the (most common) case of reopening a tty. */ + static int init_dev(struct tty_driver *driver, int idx, struct tty_struct **ret_tty) { struct tty_struct *tty, *o_tty; struct termios *tp, **tp_loc, *o_tp, **o_tp_loc; struct termios *ltp, **ltp_loc, *o_ltp, **o_ltp_loc; - int retval=0; + int retval = 0; /* check whether we're reopening an existing tty */ if (driver->flags & TTY_DRIVER_DEVPTS_MEM) { @@ -1662,10 +2078,20 @@ release_mem_out: goto end_init; } -/* - * Releases memory associated with a tty structure, and clears out the - * driver table slots. +/** + * release_mem - release tty structure memory + * + * Releases memory associated with a tty structure, and clears out the + * driver table slots. This function is called when a device is no longer + * in use. It also gets called when setup of a device fails. + * + * Locking: + * tty_mutex - sometimes only + * takes the file list lock internally when working on the list + * of ttys that the driver keeps. + * FIXME: should we require tty_mutex is held here ?? */ + static void release_mem(struct tty_struct *tty, int idx) { struct tty_struct *o_tty; @@ -2006,18 +2432,27 @@ static void release_dev(struct file * filp) } -/* - * tty_open and tty_release keep up the tty count that contains the - * number of opens done on a tty. We cannot use the inode-count, as - * different inodes might point to the same tty. +/** + * tty_open - open a tty device + * @inode: inode of device file + * @filp: file pointer to tty + * + * tty_open and tty_release keep up the tty count that contains the + * number of opens done on a tty. We cannot use the inode-count, as + * different inodes might point to the same tty. * - * Open-counting is needed for pty masters, as well as for keeping - * track of serial lines: DTR is dropped when the last close happens. - * (This is not done solely through tty->count, now. - Ted 1/27/92) + * Open-counting is needed for pty masters, as well as for keeping + * track of serial lines: DTR is dropped when the last close happens. + * (This is not done solely through tty->count, now. - Ted 1/27/92) * - * The termios state of a pty is reset on first open so that - * settings don't persist across reuse. + * The termios state of a pty is reset on first open so that + * settings don't persist across reuse. + * + * Locking: tty_mutex protects current->signal->tty, get_tty_driver and + * init_dev work. tty->count should protect the rest. + * task_lock is held to update task details for sessions */ + static int tty_open(struct inode * inode, struct file * filp) { struct tty_struct *tty; @@ -2132,6 +2567,18 @@ got_driver: } #ifdef CONFIG_UNIX98_PTYS +/** + * ptmx_open - open a unix 98 pty master + * @inode: inode of device file + * @filp: file pointer to tty + * + * Allocate a unix98 pty master device from the ptmx driver. + * + * Locking: tty_mutex protects theinit_dev work. tty->count should + protect the rest. + * allocated_ptys_lock handles the list of free pty numbers + */ + static int ptmx_open(struct inode * inode, struct file * filp) { struct tty_struct *tty; @@ -2191,6 +2638,18 @@ out: } #endif +/** + * tty_release - vfs callback for close + * @inode: inode of tty + * @filp: file pointer for handle to tty + * + * Called the last time each file handle is closed that references + * this tty. There may however be several such references. + * + * Locking: + * Takes bkl. See release_dev + */ + static int tty_release(struct inode * inode, struct file * filp) { lock_kernel(); @@ -2199,7 +2658,18 @@ static int tty_release(struct inode * inode, struct file * filp) return 0; } -/* No kernel lock held - fine */ +/** + * tty_poll - check tty status + * @filp: file being polled + * @wait: poll wait structures to update + * + * Call the line discipline polling method to obtain the poll + * status of the device. + * + * Locking: locks called line discipline but ldisc poll method + * may be re-entered freely by other callers. + */ + static unsigned int tty_poll(struct file * filp, poll_table * wait) { struct tty_struct * tty; @@ -2243,6 +2713,21 @@ static int tty_fasync(int fd, struct file * filp, int on) return 0; } +/** + * tiocsti - fake input character + * @tty: tty to fake input into + * @p: pointer to character + * + * Fake input to a tty device. Does the neccessary locking and + * input management. + * + * FIXME: does not honour flow control ?? + * + * Locking: + * Called functions take tty_ldisc_lock + * current->signal->tty check is safe without locks + */ + static int tiocsti(struct tty_struct *tty, char __user *p) { char ch, mbz = 0; @@ -2258,6 +2743,18 @@ static int tiocsti(struct tty_struct *tty, char __user *p) return 0; } +/** + * tiocgwinsz - implement window query ioctl + * @tty; tty + * @arg: user buffer for result + * + * Copies the kernel idea of the window size into the user buffer. No + * locking is done. + * + * FIXME: Returning random values racing a window size set is wrong + * should lock here against that + */ + static int tiocgwinsz(struct tty_struct *tty, struct winsize __user * arg) { if (copy_to_user(arg, &tty->winsize, sizeof(*arg))) @@ -2265,6 +2762,24 @@ static int tiocgwinsz(struct tty_struct *tty, struct winsize __user * arg) return 0; } +/** + * tiocswinsz - implement window size set ioctl + * @tty; tty + * @arg: user buffer for result + * + * Copies the user idea of the window size to the kernel. Traditionally + * this is just advisory information but for the Linux console it + * actually has driver level meaning and triggers a VC resize. + * + * Locking: + * The console_sem is used to ensure we do not try and resize + * the console twice at once. + * FIXME: Two racing size sets may leave the console and kernel + * parameters disagreeing. Is this exploitable ? + * FIXME: Random values racing a window size get is wrong + * should lock here against that + */ + static int tiocswinsz(struct tty_struct *tty, struct tty_struct *real_tty, struct winsize __user * arg) { @@ -2294,6 +2809,15 @@ static int tiocswinsz(struct tty_struct *tty, struct tty_struct *real_tty, return 0; } +/** + * tioccons - allow admin to move logical console + * @file: the file to become console + * + * Allow the adminstrator to move the redirected console device + * + * Locking: uses redirect_lock to guard the redirect information + */ + static int tioccons(struct file *file) { if (!capable(CAP_SYS_ADMIN)) @@ -2319,6 +2843,17 @@ static int tioccons(struct file *file) return 0; } +/** + * fionbio - non blocking ioctl + * @file: file to set blocking value + * @p: user parameter + * + * Historical tty interfaces had a blocking control ioctl before + * the generic functionality existed. This piece of history is preserved + * in the expected tty API of posix OS's. + * + * Locking: none, the open fle handle ensures it won't go away. + */ static int fionbio(struct file *file, int __user *p) { @@ -2334,6 +2869,23 @@ static int fionbio(struct file *file, int __user *p) return 0; } +/** + * tiocsctty - set controlling tty + * @tty: tty structure + * @arg: user argument + * + * This ioctl is used to manage job control. It permits a session + * leader to set this tty as the controlling tty for the session. + * + * Locking: + * Takes tasklist lock internally to walk sessions + * Takes task_lock() when updating signal->tty + * + * FIXME: tty_mutex is needed to protect signal->tty references. + * FIXME: why task_lock on the signal->tty reference ?? + * + */ + static int tiocsctty(struct tty_struct *tty, int arg) { struct task_struct *p; @@ -2374,6 +2926,18 @@ static int tiocsctty(struct tty_struct *tty, int arg) return 0; } +/** + * tiocgpgrp - get process group + * @tty: tty passed by user + * @real_tty: tty side of the tty pased by the user if a pty else the tty + * @p: returned pid + * + * Obtain the process group of the tty. If there is no process group + * return an error. + * + * Locking: none. Reference to ->signal->tty is safe. + */ + static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) { /* @@ -2385,6 +2949,20 @@ static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t return put_user(real_tty->pgrp, p); } +/** + * tiocspgrp - attempt to set process group + * @tty: tty passed by user + * @real_tty: tty side device matching tty passed by user + * @p: pid pointer + * + * Set the process group of the tty to the session passed. Only + * permitted where the tty session is our session. + * + * Locking: None + * + * FIXME: current->signal->tty referencing is unsafe. + */ + static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) { pid_t pgrp; @@ -2408,6 +2986,18 @@ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t return 0; } +/** + * tiocgsid - get session id + * @tty: tty passed by user + * @real_tty: tty side of the tty pased by the user if a pty else the tty + * @p: pointer to returned session id + * + * Obtain the session id of the tty. If there is no session + * return an error. + * + * Locking: none. Reference to ->signal->tty is safe. + */ + static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) { /* @@ -2421,6 +3011,16 @@ static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t _ return put_user(real_tty->session, p); } +/** + * tiocsetd - set line discipline + * @tty: tty device + * @p: pointer to user data + * + * Set the line discipline according to user request. + * + * Locking: see tty_set_ldisc, this function is just a helper + */ + static int tiocsetd(struct tty_struct *tty, int __user *p) { int ldisc; @@ -2430,6 +3030,21 @@ static int tiocsetd(struct tty_struct *tty, int __user *p) return tty_set_ldisc(tty, ldisc); } +/** + * send_break - performed time break + * @tty: device to break on + * @duration: timeout in mS + * + * Perform a timed break on hardware that lacks its own driver level + * timed break functionality. + * + * Locking: + * None + * + * FIXME: + * What if two overlap + */ + static int send_break(struct tty_struct *tty, unsigned int duration) { tty->driver->break_ctl(tty, -1); @@ -2442,8 +3057,19 @@ static int send_break(struct tty_struct *tty, unsigned int duration) return 0; } -static int -tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p) +/** + * tiocmget - get modem status + * @tty: tty device + * @file: user file pointer + * @p: pointer to result + * + * Obtain the modem status bits from the tty driver if the feature + * is supported. Return -EINVAL if it is not available. + * + * Locking: none (up to the driver) + */ + +static int tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p) { int retval = -EINVAL; @@ -2456,8 +3082,20 @@ tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p) return retval; } -static int -tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd, +/** + * tiocmset - set modem status + * @tty: tty device + * @file: user file pointer + * @cmd: command - clear bits, set bits or set all + * @p: pointer to desired bits + * + * Set the modem status bits from the tty driver if the feature + * is supported. Return -EINVAL if it is not available. + * + * Locking: none (up to the driver) + */ + +static int tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned __user *p) { int retval = -EINVAL; @@ -2573,6 +3211,7 @@ int tty_ioctl(struct inode * inode, struct file * file, clear_bit(TTY_EXCLUSIVE, &tty->flags); return 0; case TIOCNOTTY: + /* FIXME: taks lock or tty_mutex ? */ if (current->signal->tty != tty) return -ENOTTY; if (current->signal->leader) @@ -2753,9 +3392,16 @@ void do_SAK(struct tty_struct *tty) EXPORT_SYMBOL(do_SAK); -/* - * This routine is called out of the software interrupt to flush data - * from the buffer chain to the line discipline. +/** + * flush_to_ldisc + * @private_: tty structure passed from work queue. + * + * This routine is called out of the software interrupt to flush data + * from the buffer chain to the line discipline. + * + * Locking: holds tty->buf.lock to guard buffer list. Drops the lock + * while invoking the line discipline receive_buf method. The + * receive_buf method is single threaded for each tty instance. */ static void flush_to_ldisc(void *private_) @@ -2831,6 +3477,8 @@ static int n_baud_table = ARRAY_SIZE(baud_table); * Convert termios baud rate data into a speed. This should be called * with the termios lock held if this termios is a terminal termios * structure. May change the termios data. + * + * Locking: none */ int tty_termios_baud_rate(struct termios *termios) @@ -2859,6 +3507,8 @@ EXPORT_SYMBOL(tty_termios_baud_rate); * Returns the baud rate as an integer for this terminal. The * termios lock must be held by the caller and the terminal bit * flags may be updated. + * + * Locking: none */ int tty_get_baud_rate(struct tty_struct *tty) @@ -2888,6 +3538,8 @@ EXPORT_SYMBOL(tty_get_baud_rate); * * In the event of the queue being busy for flipping the work will be * held off and retried later. + * + * Locking: tty buffer lock. Driver locks in low latency mode. */ void tty_flip_buffer_push(struct tty_struct *tty) @@ -2907,9 +3559,16 @@ void tty_flip_buffer_push(struct tty_struct *tty) EXPORT_SYMBOL(tty_flip_buffer_push); -/* - * This subroutine initializes a tty structure. +/** + * initialize_tty_struct + * @tty: tty to initialize + * + * This subroutine initializes a tty structure that has been newly + * allocated. + * + * Locking: none - tty in question must not be exposed at this point */ + static void initialize_tty_struct(struct tty_struct *tty) { memset(tty, 0, sizeof(struct tty_struct)); @@ -2935,6 +3594,7 @@ static void initialize_tty_struct(struct tty_struct *tty) /* * The default put_char routine if the driver did not define one. */ + static void tty_default_put_char(struct tty_struct *tty, unsigned char ch) { tty->driver->write(tty, &ch, 1); @@ -2943,19 +3603,23 @@ static void tty_default_put_char(struct tty_struct *tty, unsigned char ch) static struct class *tty_class; /** - * tty_register_device - register a tty device - * @driver: the tty driver that describes the tty device - * @index: the index in the tty driver for this tty device - * @device: a struct device that is associated with this tty device. - * This field is optional, if there is no known struct device for this - * tty device it can be set to NULL safely. + * tty_register_device - register a tty device + * @driver: the tty driver that describes the tty device + * @index: the index in the tty driver for this tty device + * @device: a struct device that is associated with this tty device. + * This field is optional, if there is no known struct device + * for this tty device it can be set to NULL safely. * - * Returns a pointer to the class device (or ERR_PTR(-EFOO) on error). + * Returns a pointer to the class device (or ERR_PTR(-EFOO) on error). * - * This call is required to be made to register an individual tty device if - * the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set. If that - * bit is not set, this function should not be called by a tty driver. + * This call is required to be made to register an individual tty device + * if the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set. If + * that bit is not set, this function should not be called by a tty + * driver. + * + * Locking: ?? */ + struct class_device *tty_register_device(struct tty_driver *driver, unsigned index, struct device *device) { @@ -2977,13 +3641,16 @@ struct class_device *tty_register_device(struct tty_driver *driver, } /** - * tty_unregister_device - unregister a tty device - * @driver: the tty driver that describes the tty device - * @index: the index in the tty driver for this tty device + * tty_unregister_device - unregister a tty device + * @driver: the tty driver that describes the tty device + * @index: the index in the tty driver for this tty device * - * If a tty device is registered with a call to tty_register_device() then - * this function must be made when the tty device is gone. + * If a tty device is registered with a call to tty_register_device() then + * this function must be called when the tty device is gone. + * + * Locking: ?? */ + void tty_unregister_device(struct tty_driver *driver, unsigned index) { class_device_destroy(tty_class, MKDEV(driver->major, driver->minor_start) + index); @@ -3094,7 +3761,6 @@ int tty_register_driver(struct tty_driver *driver) driver->cdev.owner = driver->owner; error = cdev_add(&driver->cdev, dev, driver->num); if (error) { - cdev_del(&driver->cdev); unregister_chrdev_region(dev, driver->num); driver->ttys = NULL; driver->termios = driver->termios_locked = NULL; diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index f19cf9d7792..4ad47d321bd 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -36,6 +36,18 @@ #define TERMIOS_WAIT 2 #define TERMIOS_TERMIO 4 + +/** + * tty_wait_until_sent - wait for I/O to finish + * @tty: tty we are waiting for + * @timeout: how long we will wait + * + * Wait for characters pending in a tty driver to hit the wire, or + * for a timeout to occur (eg due to flow control) + * + * Locking: none + */ + void tty_wait_until_sent(struct tty_struct * tty, long timeout) { DECLARE_WAITQUEUE(wait, current); @@ -94,6 +106,18 @@ static void unset_locked_termios(struct termios *termios, old->c_cc[i] : termios->c_cc[i]; } +/** + * change_termios - update termios values + * @tty: tty to update + * @new_termios: desired new value + * + * Perform updates to the termios values set on this terminal. There + * is a bit of layering violation here with n_tty in terms of the + * internal knowledge of this function. + * + * Locking: termios_sem + */ + static void change_termios(struct tty_struct * tty, struct termios * new_termios) { int canon_change; @@ -155,6 +179,19 @@ static void change_termios(struct tty_struct * tty, struct termios * new_termios up(&tty->termios_sem); } +/** + * set_termios - set termios values for a tty + * @tty: terminal device + * @arg: user data + * @opt: option information + * + * Helper function to prepare termios data and run neccessary other + * functions before using change_termios to do the actual changes. + * + * Locking: + * Called functions take ldisc and termios_sem locks + */ + static int set_termios(struct tty_struct * tty, void __user *arg, int opt) { struct termios tmp_termios; @@ -284,6 +321,17 @@ static void set_sgflags(struct termios * termios, int flags) } } +/** + * set_sgttyb - set legacy terminal values + * @tty: tty structure + * @sgttyb: pointer to old style terminal structure + * + * Updates a terminal from the legacy BSD style terminal information + * structure. + * + * Locking: termios_sem + */ + static int set_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb) { int retval; @@ -369,9 +417,16 @@ static int set_ltchars(struct tty_struct * tty, struct ltchars __user * ltchars) } #endif -/* - * Send a high priority character to the tty. +/** + * send_prio_char - send priority character + * + * Send a high priority character to the tty even if stopped + * + * Locking: none + * + * FIXME: overlapping calls with start/stop tty lose state of tty */ + static void send_prio_char(struct tty_struct *tty, char ch) { int was_stopped = tty->stopped; diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c index eccffaf26fa..a5628a8b662 100644 --- a/drivers/char/vt_ioctl.c +++ b/drivers/char/vt_ioctl.c @@ -1011,6 +1011,8 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, return -EPERM; vt_dont_switch = 0; return 0; + case VT_GETHIFONTMASK: + return put_user(vc->vc_hi_font_mask, (unsigned short __user *)arg); default: return -ENOIOCTLCMD; } diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index cc15c4f2e9e..35ad1b03272 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -26,6 +26,7 @@ #include <linux/jiffies.h> #include <linux/mutex.h> #include <linux/err.h> +#include <linux/delay.h> #include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> @@ -64,17 +65,17 @@ #define ABIT_UGURU_IN_SENSOR 0 #define ABIT_UGURU_TEMP_SENSOR 1 #define ABIT_UGURU_NC 2 -/* Timeouts / Retries, if these turn out to need a lot of fiddling we could - convert them to params. */ -/* 250 was determined by trial and error, 200 works most of the time, but not - always. I assume this is cpu-speed independent, since the ISA-bus and not - the CPU should be the bottleneck. Note that 250 sometimes is still not - enough (only reported on AN7 mb) this is handled by a higher layer. */ -#define ABIT_UGURU_WAIT_TIMEOUT 250 +/* In many cases we need to wait for the uGuru to reach a certain status, most + of the time it will reach this status within 30 - 90 ISA reads, and thus we + can best busy wait. This define gives the total amount of reads to try. */ +#define ABIT_UGURU_WAIT_TIMEOUT 125 +/* However sometimes older versions of the uGuru seem to be distracted and they + do not respond for a long time. To handle this we sleep before each of the + last ABIT_UGURU_WAIT_TIMEOUT_SLEEP tries. */ +#define ABIT_UGURU_WAIT_TIMEOUT_SLEEP 5 /* Normally all expected status in abituguru_ready, are reported after the - first read, but sometimes not and we need to poll, 5 polls was not enough - 50 sofar is. */ -#define ABIT_UGURU_READY_TIMEOUT 50 + first read, but sometimes not and we need to poll. */ +#define ABIT_UGURU_READY_TIMEOUT 5 /* Maximum 3 retries on timedout reads/writes, delay 200 ms before retrying */ #define ABIT_UGURU_MAX_RETRIES 3 #define ABIT_UGURU_RETRY_DELAY (HZ/5) @@ -226,6 +227,10 @@ static int abituguru_wait(struct abituguru_data *data, u8 state) timeout--; if (timeout == 0) return -EBUSY; + /* sleep a bit before our last few tries, see the comment on + this where ABIT_UGURU_WAIT_TIMEOUT_SLEEP is defined. */ + if (timeout <= ABIT_UGURU_WAIT_TIMEOUT_SLEEP) + msleep(0); } return 0; } @@ -256,6 +261,7 @@ static int abituguru_ready(struct abituguru_data *data) "CMD reg does not hold 0xAC after ready command\n"); return -EIO; } + msleep(0); } /* After this the ABIT_UGURU_DATA port should contain @@ -268,6 +274,7 @@ static int abituguru_ready(struct abituguru_data *data) "state != more input after ready command\n"); return -EIO; } + msleep(0); } data->uguru_ready = 1; @@ -331,7 +338,8 @@ static int abituguru_read(struct abituguru_data *data, /* And read the data */ for (i = 0; i < count; i++) { if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) { - ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for " + ABIT_UGURU_DEBUG(retries ? 1 : 3, + "timeout exceeded waiting for " "read state (bank: %d, sensor: %d)\n", (int)bank_addr, (int)sensor_addr); break; @@ -350,7 +358,9 @@ static int abituguru_read(struct abituguru_data *data, static int abituguru_write(struct abituguru_data *data, u8 bank_addr, u8 sensor_addr, u8 *buf, int count) { - int i; + /* We use the ready timeout as we have to wait for 0xAC just like the + ready function */ + int i, timeout = ABIT_UGURU_READY_TIMEOUT; /* Send the address */ i = abituguru_send_address(data, bank_addr, sensor_addr, @@ -370,7 +380,8 @@ static int abituguru_write(struct abituguru_data *data, } /* Now we need to wait till the chip is ready to be read again, - don't ask why */ + so that we can read 0xAC as confirmation that our write has + succeeded. */ if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) { ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for read state " "after write (bank: %d, sensor: %d)\n", (int)bank_addr, @@ -379,11 +390,15 @@ static int abituguru_write(struct abituguru_data *data, } /* Cmd port MUST be read now and should contain 0xAC */ - if (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) { - ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after write " - "(bank: %d, sensor: %d)\n", (int)bank_addr, - (int)sensor_addr); - return -EIO; + while (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) { + timeout--; + if (timeout == 0) { + ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after " + "write (bank: %d, sensor: %d)\n", + (int)bank_addr, (int)sensor_addr); + return -EIO; + } + msleep(0); } /* Last put the chip back in ready state */ @@ -403,7 +418,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, u8 sensor_addr) { u8 val, buf[3]; - int ret = ABIT_UGURU_NC; + int i, ret = -ENODEV; /* error is the most common used retval :| */ /* If overriden by the user return the user selected type */ if (bank1_types[sensor_addr] >= ABIT_UGURU_IN_SENSOR && @@ -439,7 +454,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, buf[2] = 250; if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr, buf, 3) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; /* Now we need 20 ms to give the uguru time to read the sensors and raise a voltage alarm */ set_current_state(TASK_UNINTERRUPTIBLE); @@ -447,21 +462,16 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, /* Check for alarm and check the alarm is a volt low alarm. */ if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) { if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1, sensor_addr, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[0] & ABIT_UGURU_VOLT_LOW_ALARM_FLAG) { - /* Restore original settings */ - if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, - sensor_addr, - data->bank1_settings[sensor_addr], - 3) != 3) - return -ENODEV; ABIT_UGURU_DEBUG(2, " found volt sensor\n"); - return ABIT_UGURU_IN_SENSOR; + ret = ABIT_UGURU_IN_SENSOR; + goto abituguru_detect_bank1_sensor_type_exit; } else ABIT_UGURU_DEBUG(2, " alarm raised during volt " "sensor test, but volt low flag not set\n"); @@ -477,7 +487,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, buf[2] = 10; if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr, buf, 3) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; /* Now we need 50 ms to give the uguru time to read the sensors and raise a temp alarm */ set_current_state(TASK_UNINTERRUPTIBLE); @@ -485,15 +495,16 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, /* Check for alarm and check the alarm is a temp high alarm. */ if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) { if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1, sensor_addr, buf, 3, ABIT_UGURU_MAX_RETRIES) != 3) - return -ENODEV; + goto abituguru_detect_bank1_sensor_type_exit; if (buf[0] & ABIT_UGURU_TEMP_HIGH_ALARM_FLAG) { - ret = ABIT_UGURU_TEMP_SENSOR; ABIT_UGURU_DEBUG(2, " found temp sensor\n"); + ret = ABIT_UGURU_TEMP_SENSOR; + goto abituguru_detect_bank1_sensor_type_exit; } else ABIT_UGURU_DEBUG(2, " alarm raised during temp " "sensor test, but temp high flag not set\n"); @@ -501,11 +512,23 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data, ABIT_UGURU_DEBUG(2, " alarm not raised during temp sensor " "test\n"); - /* Restore original settings */ - if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr, - data->bank1_settings[sensor_addr], 3) != 3) + ret = ABIT_UGURU_NC; +abituguru_detect_bank1_sensor_type_exit: + /* Restore original settings, failing here is really BAD, it has been + reported that some BIOS-es hang when entering the uGuru menu with + invalid settings present in the uGuru, so we try this 3 times. */ + for (i = 0; i < 3; i++) + if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, + sensor_addr, data->bank1_settings[sensor_addr], + 3) == 3) + break; + if (i == 3) { + printk(KERN_ERR ABIT_UGURU_NAME + ": Fatal error could not restore original settings. " + "This should never happen please report this to the " + "abituguru maintainer (see MAINTAINERS)\n"); return -ENODEV; - + } return ret; } @@ -1305,7 +1328,7 @@ static struct abituguru_data *abituguru_update_device(struct device *dev) data->update_timeouts = 0; LEAVE_UPDATE: /* handle timeout condition */ - if (err == -EBUSY) { + if (!success && (err == -EBUSY || err >= 0)) { /* No overflow please */ if (data->update_timeouts < 255u) data->update_timeouts++; diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c index e7e27049fbf..0be6fd6a267 100644 --- a/drivers/i2c/chips/tps65010.c +++ b/drivers/i2c/chips/tps65010.c @@ -43,13 +43,12 @@ /*-------------------------------------------------------------------------*/ #define DRIVER_VERSION "2 May 2005" -#define DRIVER_NAME (tps65010_driver.name) +#define DRIVER_NAME (tps65010_driver.driver.name) MODULE_DESCRIPTION("TPS6501x Power Management Driver"); MODULE_LICENSE("GPL"); static unsigned short normal_i2c[] = { 0x48, /* 0x49, */ I2C_CLIENT_END }; -static unsigned short normal_i2c_range[] = { I2C_CLIENT_END }; I2C_CLIENT_INSMOD; @@ -100,7 +99,7 @@ struct tps65010 { /* not currently tracking GPIO state */ }; -#define POWER_POLL_DELAY msecs_to_jiffies(800) +#define POWER_POLL_DELAY msecs_to_jiffies(5000) /*-------------------------------------------------------------------------*/ @@ -520,8 +519,11 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind) goto fail1; } + /* the IRQ is active low, but many gpio lines can't support that + * so this driver can use falling-edge triggers instead. + */ + irqflags = IRQF_SAMPLE_RANDOM; #ifdef CONFIG_ARM - irqflags = IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_LOW; if (machine_is_omap_h2()) { tps->model = TPS65010; omap_cfg_reg(W4_GPIO58); @@ -543,8 +545,6 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind) // FIXME set up this board's IRQ ... } -#else - irqflags = IRQF_SAMPLE_RANDOM; #endif if (tps->irq > 0) { diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c index d4bad6704bb..448df277337 100644 --- a/drivers/ieee1394/ohci1394.c +++ b/drivers/ieee1394/ohci1394.c @@ -3552,6 +3552,8 @@ static int ohci1394_pci_resume (struct pci_dev *pdev) static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) { + pci_save_state(pdev); + #ifdef CONFIG_PPC_PMAC if (machine_is(powermac)) { struct device_node *of_node; @@ -3563,8 +3565,6 @@ static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) } #endif - pci_save_state(pdev); - return 0; } diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index e05ca2cdc73..75313ade2e0 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -301,7 +301,8 @@ static void ib_cache_event(struct ib_event_handler *handler, event->event == IB_EVENT_PORT_ACTIVE || event->event == IB_EVENT_LID_CHANGE || event->event == IB_EVENT_PKEY_CHANGE || - event->event == IB_EVENT_SM_CHANGE) { + event->event == IB_EVENT_SM_CHANGE || + event->event == IB_EVENT_CLIENT_REREGISTER) { work = kmalloc(sizeof *work, GFP_ATOMIC); if (work) { INIT_WORK(&work->work, ib_cache_task, work); diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index aeda484ffd8..d6b84226bba 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -405,7 +405,8 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event event->event == IB_EVENT_PORT_ACTIVE || event->event == IB_EVENT_LID_CHANGE || event->event == IB_EVENT_PKEY_CHANGE || - event->event == IB_EVENT_SM_CHANGE) { + event->event == IB_EVENT_SM_CHANGE || + event->event == IB_EVENT_CLIENT_REREGISTER) { struct ib_sa_device *sa_dev; sa_dev = container_of(handler, typeof(*sa_dev), event_handler); diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 557cde3a456..7b82c1907f0 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -967,12 +967,12 @@ static struct { } mthca_hca_table[] = { [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 4, 0), .flags = 0 }, - [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400), + [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 600), .flags = MTHCA_FLAG_PCIE }, - [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), + [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 400), .flags = MTHCA_FLAG_MEMFREE | MTHCA_FLAG_PCIE }, - [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 800), + [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 1, 0), .flags = MTHCA_FLAG_MEMFREE | MTHCA_FLAG_PCIE | MTHCA_FLAG_SINAI_OPT } diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c index 230ae21db8f..265b1d1c4a6 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.c +++ b/drivers/infiniband/hw/mthca/mthca_provider.c @@ -1287,11 +1287,7 @@ int mthca_register_device(struct mthca_dev *dev) (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | - (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | - (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | - (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | - (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | - (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); + (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); dev->ib_dev.node_type = IB_NODE_CA; dev->ib_dev.phys_port_cnt = dev->limits.num_ports; dev->ib_dev.dma_device = &dev->pdev->dev; @@ -1316,6 +1312,11 @@ int mthca_register_device(struct mthca_dev *dev) dev->ib_dev.modify_srq = mthca_modify_srq; dev->ib_dev.query_srq = mthca_query_srq; dev->ib_dev.destroy_srq = mthca_destroy_srq; + dev->ib_dev.uverbs_cmd_mask |= + (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | + (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | + (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); if (mthca_is_memfree(dev)) dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h index 8de2887ba15..9a5bece3fa5 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.h +++ b/drivers/infiniband/hw/mthca/mthca_provider.h @@ -136,8 +136,8 @@ struct mthca_ah { * We have one global lock that protects dev->cq/qp_table. Each * struct mthca_cq/qp also has its own lock. An individual qp lock * may be taken inside of an individual cq lock. Both cqs attached to - * a qp may be locked, with the send cq locked first. No other - * nesting should be done. + * a qp may be locked, with the cq with the lower cqn locked first. + * No other nesting should be done. * * Each struct mthca_cq/qp also has an ref count, protected by the * corresponding table lock. The pointer from the cq/qp_table to the diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index cd8b6721ac9..2e8f6f36e0a 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -99,6 +99,10 @@ enum { MTHCA_QP_BIT_RSC = 1 << 3 }; +enum { + MTHCA_SEND_DOORBELL_FENCE = 1 << 5 +}; + struct mthca_qp_path { __be32 port_pkey; u8 rnr_retry; @@ -1259,6 +1263,32 @@ int mthca_alloc_qp(struct mthca_dev *dev, return 0; } +static void mthca_lock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq) +{ + if (send_cq == recv_cq) + spin_lock_irq(&send_cq->lock); + else if (send_cq->cqn < recv_cq->cqn) { + spin_lock_irq(&send_cq->lock); + spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING); + } else { + spin_lock_irq(&recv_cq->lock); + spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING); + } +} + +static void mthca_unlock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq) +{ + if (send_cq == recv_cq) + spin_unlock_irq(&send_cq->lock); + else if (send_cq->cqn < recv_cq->cqn) { + spin_unlock(&recv_cq->lock); + spin_unlock_irq(&send_cq->lock); + } else { + spin_unlock(&send_cq->lock); + spin_unlock_irq(&recv_cq->lock); + } +} + int mthca_alloc_sqp(struct mthca_dev *dev, struct mthca_pd *pd, struct mthca_cq *send_cq, @@ -1311,17 +1341,13 @@ int mthca_alloc_sqp(struct mthca_dev *dev, * Lock CQs here, so that CQ polling code can do QP lookup * without taking a lock. */ - spin_lock_irq(&send_cq->lock); - if (send_cq != recv_cq) - spin_lock(&recv_cq->lock); + mthca_lock_cqs(send_cq, recv_cq); spin_lock(&dev->qp_table.lock); mthca_array_clear(&dev->qp_table.qp, mqpn); spin_unlock(&dev->qp_table.lock); - if (send_cq != recv_cq) - spin_unlock(&recv_cq->lock); - spin_unlock_irq(&send_cq->lock); + mthca_unlock_cqs(send_cq, recv_cq); err_out: dma_free_coherent(&dev->pdev->dev, sqp->header_buf_size, @@ -1355,9 +1381,7 @@ void mthca_free_qp(struct mthca_dev *dev, * Lock CQs here, so that CQ polling code can do QP lookup * without taking a lock. */ - spin_lock_irq(&send_cq->lock); - if (send_cq != recv_cq) - spin_lock(&recv_cq->lock); + mthca_lock_cqs(send_cq, recv_cq); spin_lock(&dev->qp_table.lock); mthca_array_clear(&dev->qp_table.qp, @@ -1365,9 +1389,7 @@ void mthca_free_qp(struct mthca_dev *dev, --qp->refcount; spin_unlock(&dev->qp_table.lock); - if (send_cq != recv_cq) - spin_unlock(&recv_cq->lock); - spin_unlock_irq(&send_cq->lock); + mthca_unlock_cqs(send_cq, recv_cq); wait_event(qp->wait, !get_qp_refcount(dev, qp)); @@ -1502,7 +1524,7 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int i; int size; int size0 = 0; - u32 f0 = 0; + u32 f0; int ind; u8 op0 = 0; @@ -1686,6 +1708,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, if (!size0) { size0 = size; op0 = mthca_opcode[wr->opcode]; + f0 = wr->send_flags & IB_SEND_FENCE ? + MTHCA_SEND_DOORBELL_FENCE : 0; } ++ind; @@ -1843,7 +1867,7 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int i; int size; int size0 = 0; - u32 f0 = 0; + u32 f0; int ind; u8 op0 = 0; @@ -2051,6 +2075,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, if (!size0) { size0 = size; op0 = mthca_opcode[wr->opcode]; + f0 = wr->send_flags & IB_SEND_FENCE ? + MTHCA_SEND_DOORBELL_FENCE : 0; } ++ind; diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 34b0da5cfa0..1437d7ee3b1 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -378,21 +378,6 @@ iscsi_iser_conn_start(struct iscsi_cls_conn *cls_conn) return iser_conn_set_full_featured_mode(conn); } -static void -iscsi_iser_conn_terminate(struct iscsi_conn *conn) -{ - struct iscsi_iser_conn *iser_conn = conn->dd_data; - struct iser_conn *ib_conn = iser_conn->ib_conn; - - BUG_ON(!ib_conn); - /* starts conn teardown process, waits until all previously * - * posted buffers get flushed, deallocates all conn resources */ - iser_conn_terminate(ib_conn); - iser_conn->ib_conn = NULL; - conn->recv_lock = NULL; -} - - static struct iscsi_transport iscsi_iser_transport; static struct iscsi_cls_session * @@ -555,13 +540,13 @@ iscsi_iser_ep_poll(__u64 ep_handle, int timeout_ms) static void iscsi_iser_ep_disconnect(__u64 ep_handle) { - struct iser_conn *ib_conn = iscsi_iser_ib_conn_lookup(ep_handle); + struct iser_conn *ib_conn; + ib_conn = iscsi_iser_ib_conn_lookup(ep_handle); if (!ib_conn) return; iser_err("ib conn %p state %d\n",ib_conn, ib_conn->state); - iser_conn_terminate(ib_conn); } @@ -614,9 +599,6 @@ static struct iscsi_transport iscsi_iser_transport = { .get_session_param = iscsi_session_get_param, .start_conn = iscsi_iser_conn_start, .stop_conn = iscsi_conn_stop, - /* these are called as part of conn recovery */ - .suspend_conn_recv = NULL, /* FIXME is/how this relvant to iser? */ - .terminate_conn = iscsi_iser_conn_terminate, /* IO */ .send_pdu = iscsi_conn_send_pdu, .get_stats = iscsi_iser_conn_get_stats, diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 6bfa0cf4b1d..a86afd0a5ef 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -498,7 +498,7 @@ static int atkbd_set_repeat_rate(struct atkbd *atkbd) i++; dev->rep[REP_PERIOD] = period[i]; - while (j < ARRAY_SIZE(period) - 1 && delay[j] < dev->rep[REP_DELAY]) + while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY]) j++; dev->rep[REP_DELAY] = delay[j]; diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c index a8efc1af36c..de0f46dd969 100644 --- a/drivers/input/misc/wistron_btns.c +++ b/drivers/input/misc/wistron_btns.c @@ -259,11 +259,11 @@ static int __init dmi_matched(struct dmi_system_id *dmi) return 1; } -static struct key_entry keymap_empty[] __initdata = { +static struct key_entry keymap_empty[] = { { KE_END, 0 } }; -static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = { +static struct key_entry keymap_fs_amilo_pro_v2000[] = { { KE_KEY, 0x01, KEY_HELP }, { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, @@ -273,7 +273,7 @@ static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_fujitsu_n3510[] __initdata = { +static struct key_entry keymap_fujitsu_n3510[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_KEY, 0x36, KEY_WWW }, @@ -285,7 +285,7 @@ static struct key_entry keymap_fujitsu_n3510[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_wistron_ms2111[] __initdata = { +static struct key_entry keymap_wistron_ms2111[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_KEY, 0x13, KEY_PROG3 }, @@ -294,7 +294,7 @@ static struct key_entry keymap_wistron_ms2111[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_wistron_ms2141[] __initdata = { +static struct key_entry keymap_wistron_ms2141[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_WIFI, 0x30, 0 }, @@ -307,7 +307,7 @@ static struct key_entry keymap_wistron_ms2141[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_acer_aspire_1500[] __initdata = { +static struct key_entry keymap_acer_aspire_1500[] = { { KE_KEY, 0x11, KEY_PROG1 }, { KE_KEY, 0x12, KEY_PROG2 }, { KE_WIFI, 0x30, 0 }, @@ -317,7 +317,7 @@ static struct key_entry keymap_acer_aspire_1500[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_acer_travelmate_240[] __initdata = { +static struct key_entry keymap_acer_travelmate_240[] = { { KE_KEY, 0x31, KEY_MAIL }, { KE_KEY, 0x36, KEY_WWW }, { KE_KEY, 0x11, KEY_PROG1 }, @@ -327,7 +327,7 @@ static struct key_entry keymap_acer_travelmate_240[] __initdata = { { KE_END, 0 } }; -static struct key_entry keymap_aopen_1559as[] __initdata = { +static struct key_entry keymap_aopen_1559as[] = { { KE_KEY, 0x01, KEY_HELP }, { KE_KEY, 0x06, KEY_PROG3 }, { KE_KEY, 0x11, KEY_PROG1 }, diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 8bc9f51ae6c..343afa38f4c 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -485,13 +485,6 @@ static int im_explorer_detect(struct psmouse *psmouse, int set_properties) param[0] = 40; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - param[0] = 200; - ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - param[0] = 200; - ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - param[0] = 60; - ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); - if (set_properties) { set_bit(BTN_MIDDLE, psmouse->dev->keybit); set_bit(REL_WHEEL, psmouse->dev->relbit); diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index be48cedf986..c54de989eb0 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -255,7 +255,9 @@ static struct region *__rh_alloc(struct region_hash *rh, region_t region) struct region *reg, *nreg; read_unlock(&rh->hash_lock); - nreg = mempool_alloc(rh->region_pool, GFP_NOIO); + nreg = mempool_alloc(rh->region_pool, GFP_ATOMIC); + if (unlikely(!nreg)) + nreg = kmalloc(sizeof(struct region), GFP_NOIO); nreg->state = rh->log->type->in_sync(rh->log, region, 1) ? RH_CLEAN : RH_NOSYNC; nreg->rh = rh; diff --git a/drivers/md/md.c b/drivers/md/md.c index b6d16022a53..8dbab2ef388 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1597,6 +1597,19 @@ void md_update_sb(mddev_t * mddev) repeat: spin_lock_irq(&mddev->write_lock); + + if (mddev->degraded && mddev->sb_dirty == 3) + /* If the array is degraded, then skipping spares is both + * dangerous and fairly pointless. + * Dangerous because a device that was removed from the array + * might have a event_count that still looks up-to-date, + * so it can be re-added without a resync. + * Pointless because if there are any spares to skip, + * then a recovery will happen and soon that array won't + * be degraded any more and the spare can go back to sleep then. + */ + mddev->sb_dirty = 1; + sync_req = mddev->in_sync; mddev->utime = get_seconds(); if (mddev->sb_dirty == 3) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 1efe22a2d04..87bfe9e7d8c 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1625,15 +1625,16 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i return 0; } - /* before building a request, check if we can skip these blocks.. - * This call the bitmap_start_sync doesn't actually record anything - */ if (mddev->bitmap == NULL && mddev->recovery_cp == MaxSector && + !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) && conf->fullsync == 0) { *skipped = 1; return max_sector - sector_nr; } + /* before building a request, check if we can skip these blocks.. + * This call the bitmap_start_sync doesn't actually record anything + */ if (!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) && !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) { /* We can skip this block, and probably several more */ diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index d4cb144ab40..c537d71c18e 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -640,7 +640,6 @@ typedef struct _MPT_ADAPTER struct work_struct fc_setup_reset_work; struct list_head fc_rports; spinlock_t fc_rescan_work_lock; - int fc_rescan_work_count; struct work_struct fc_rescan_work; char fc_rescan_work_q_name[KOBJ_NAME_LEN]; struct workqueue_struct *fc_rescan_work_q; diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index 90da7d63b08..85696f34c31 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -669,7 +669,10 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) * if still doing discovery, * hang loose a while until finished */ - if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) { + if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || + (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && + (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) + == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { if (count-- > 0) { msleep(100); goto try_again; @@ -895,59 +898,45 @@ mptfc_rescan_devices(void *arg) { MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; int ii; - int work_to_do; u64 pn; - unsigned long flags; struct mptfc_rport_info *ri; - do { - /* start by tagging all ports as missing */ - list_for_each_entry(ri, &ioc->fc_rports, list) { - if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { - ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; - } + /* start by tagging all ports as missing */ + list_for_each_entry(ri, &ioc->fc_rports, list) { + if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { + ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; } + } - /* - * now rescan devices known to adapter, - * will reregister existing rports - */ - for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { - (void) mptfc_GetFcPortPage0(ioc, ii); - mptfc_init_host_attr(ioc,ii); /* refresh */ - mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); - } + /* + * now rescan devices known to adapter, + * will reregister existing rports + */ + for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { + (void) mptfc_GetFcPortPage0(ioc, ii); + mptfc_init_host_attr(ioc, ii); /* refresh */ + mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); + } - /* delete devices still missing */ - list_for_each_entry(ri, &ioc->fc_rports, list) { - /* if newly missing, delete it */ - if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { + /* delete devices still missing */ + list_for_each_entry(ri, &ioc->fc_rports, list) { + /* if newly missing, delete it */ + if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { - ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| - MPT_RPORT_INFO_FLAGS_MISSING); - fc_remote_port_delete(ri->rport); /* won't sleep */ - ri->rport = NULL; + ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| + MPT_RPORT_INFO_FLAGS_MISSING); + fc_remote_port_delete(ri->rport); /* won't sleep */ + ri->rport = NULL; - pn = (u64)ri->pg0.WWPN.High << 32 | - (u64)ri->pg0.WWPN.Low; - dfcprintk ((MYIOC_s_INFO_FMT - "mptfc_rescan.%d: %llx deleted\n", - ioc->name, - ioc->sh->host_no, - (unsigned long long)pn)); - } + pn = (u64)ri->pg0.WWPN.High << 32 | + (u64)ri->pg0.WWPN.Low; + dfcprintk ((MYIOC_s_INFO_FMT + "mptfc_rescan.%d: %llx deleted\n", + ioc->name, + ioc->sh->host_no, + (unsigned long long)pn)); } - - /* - * allow multiple passes as target state - * might have changed during scan - */ - spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); - if (ioc->fc_rescan_work_count > 2) /* only need one more */ - ioc->fc_rescan_work_count = 2; - work_to_do = --ioc->fc_rescan_work_count; - spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); - } while (work_to_do); + } } static int @@ -1159,7 +1148,6 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) * by doing it via the workqueue, some locking is eliminated */ - ioc->fc_rescan_work_count = 1; queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); flush_workqueue(ioc->fc_rescan_work_q); @@ -1202,10 +1190,8 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) case MPI_EVENT_RESCAN: spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); if (ioc->fc_rescan_work_q) { - if (ioc->fc_rescan_work_count++ == 0) { - queue_work(ioc->fc_rescan_work_q, - &ioc->fc_rescan_work); - } + queue_work(ioc->fc_rescan_work_q, + &ioc->fc_rescan_work); } spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); break; @@ -1248,10 +1234,8 @@ mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) mptfc_SetFcPortPage1_defaults(ioc); spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); if (ioc->fc_rescan_work_q) { - if (ioc->fc_rescan_work_count++ == 0) { - queue_work(ioc->fc_rescan_work_q, - &ioc->fc_rescan_work); - } + queue_work(ioc->fc_rescan_work_q, + &ioc->fc_rescan_work); } spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); } diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index d7897dc6b3c..a0ba07c36ee 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -130,11 +130,13 @@ static void ams_delta_hwcontrol(struct mtd_info *mtd, int cmd, if (ctrl & NAND_CTRL_CHANGE) { unsigned long bits; - bits = (~ctrl & NAND_NCE) << 2; - bits |= (ctrl & NAND_CLE) << 7; - bits |= (ctrl & NAND_ALE) << 6; + bits = (~ctrl & NAND_NCE) ? AMS_DELTA_LATCH2_NAND_NCE : 0; + bits |= (ctrl & NAND_CLE) ? AMS_DELTA_LATCH2_NAND_CLE : 0; + bits |= (ctrl & NAND_ALE) ? AMS_DELTA_LATCH2_NAND_ALE : 0; - ams_delta_latch2_write(0xC2, bits); + ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_CLE | + AMS_DELTA_LATCH2_NAND_ALE | + AMS_DELTA_LATCH2_NAND_NCE, bits); } if (cmd != NAND_CMD_NONE) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 62b861304e0..c8cbc00243f 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1093,9 +1093,10 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, ret = nand_do_read_ops(mtd, from, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } @@ -1691,9 +1692,10 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, ret = nand_do_write_ops(mtd, to, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index 3c148eaf2f4..8a60f391ffc 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -76,7 +76,7 @@ config HOTPLUG_PCI_IBM config HOTPLUG_PCI_ACPI tristate "ACPI PCI Hotplug driver" - depends on ACPI_DOCK && HOTPLUG_PCI + depends on (!ACPI_DOCK && ACPI && HOTPLUG_PCI) || (ACPI_DOCK && HOTPLUG_PCI) help Say Y here if you have a system that supports PCI Hotplug using ACPI. diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c index 02be74caa89..4afcaffd031 100644 --- a/drivers/pci/hotplug/cpci_hotplug_pci.c +++ b/drivers/pci/hotplug/cpci_hotplug_pci.c @@ -254,8 +254,8 @@ int cpci_led_off(struct slot* slot) int cpci_configure_slot(struct slot* slot) { - unsigned char busnr; - struct pci_bus *child; + struct pci_bus *parent; + int fn; dbg("%s - enter", __FUNCTION__); @@ -276,23 +276,53 @@ int cpci_configure_slot(struct slot* slot) */ n = pci_scan_slot(slot->bus, slot->devfn); dbg("%s: pci_scan_slot returned %d", __FUNCTION__, n); - if (n > 0) - pci_bus_add_devices(slot->bus); slot->dev = pci_get_slot(slot->bus, slot->devfn); if (slot->dev == NULL) { err("Could not find PCI device for slot %02x", slot->number); - return 1; + return -ENODEV; } } - - if (slot->dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { - pci_read_config_byte(slot->dev, PCI_SECONDARY_BUS, &busnr); - child = pci_add_new_bus(slot->dev->bus, slot->dev, busnr); - pci_do_scan_bus(child); - pci_bus_size_bridges(child); + parent = slot->dev->bus; + + for (fn = 0; fn < 8; fn++) { + struct pci_dev *dev; + + dev = pci_get_slot(parent, PCI_DEVFN(PCI_SLOT(slot->devfn), fn)); + if (!dev) + continue; + if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) || + (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) { + /* Find an unused bus number for the new bridge */ + struct pci_bus *child; + unsigned char busnr, start = parent->secondary; + unsigned char end = parent->subordinate; + + for (busnr = start; busnr <= end; busnr++) { + if (!pci_find_bus(pci_domain_nr(parent), + busnr)) + break; + } + if (busnr >= end) { + err("No free bus for hot-added bridge\n"); + pci_dev_put(dev); + continue; + } + child = pci_add_new_bus(parent, dev, busnr); + if (!child) { + err("Cannot add new bus for %s\n", + pci_name(dev)); + pci_dev_put(dev); + continue; + } + child->subordinate = pci_do_scan_bus(child); + pci_bus_size_bridges(child); + } + pci_dev_put(dev); } - pci_bus_assign_resources(slot->dev->bus); + pci_bus_assign_resources(parent); + pci_bus_add_devices(parent); + pci_enable_bridges(parent); dbg("%s - exit", __FUNCTION__); return 0; diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 10e1a905c14..474e9cd0e9e 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -139,9 +139,8 @@ const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, /** * pci_match_device - Tell if a PCI device structure has a matching * PCI device id structure - * @ids: array of PCI device id structures to search in - * @dev: the PCI device structure to match against * @drv: the PCI driver to match against + * @dev: the PCI device structure to match against * * Used by a driver to check whether a PCI device present in the * system is in its list of supported devices. Returns the matching diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index fb08bc951ac..73177429fe7 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -438,6 +438,7 @@ static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev) pci_read_config_dword(dev, 0x48, ®ion); quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO"); } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi ); /* @@ -1091,7 +1092,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asu DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc ); static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev) { @@ -1518,6 +1518,63 @@ static void __devinit quirk_netmos(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos); +static void __devinit quirk_e100_interrupt(struct pci_dev *dev) +{ + u16 command; + u32 bar; + u8 __iomem *csr; + u8 cmd_hi; + + switch (dev->device) { + /* PCI IDs taken from drivers/net/e100.c */ + case 0x1029: + case 0x1030 ... 0x1034: + case 0x1038 ... 0x103E: + case 0x1050 ... 0x1057: + case 0x1059: + case 0x1064 ... 0x106B: + case 0x1091 ... 0x1095: + case 0x1209: + case 0x1229: + case 0x2449: + case 0x2459: + case 0x245D: + case 0x27DC: + break; + default: + return; + } + + /* + * Some firmware hands off the e100 with interrupts enabled, + * which can cause a flood of interrupts if packets are + * received before the driver attaches to the device. So + * disable all e100 interrupts here. The driver will + * re-enable them when it's ready. + */ + pci_read_config_word(dev, PCI_COMMAND, &command); + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar); + + if (!(command & PCI_COMMAND_MEMORY) || !bar) + return; + + csr = ioremap(bar, 8); + if (!csr) { + printk(KERN_WARNING "PCI: Can't map %s e100 registers\n", + pci_name(dev)); + return; + } + + cmd_hi = readb(csr + 3); + if (cmd_hi == 0) { + printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts " + "enabled, disabling\n", pci_name(dev)); + writeb(1, csr + 3); + } + + iounmap(csr); +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt); static void __devinit fixup_rev1_53c810(struct pci_dev* dev) { diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index d6d1bff52b8..2c7de79c83b 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -69,12 +69,12 @@ static void s3c_rtc_setaie(int to) pr_debug("%s: aie=%d\n", __FUNCTION__, to); - tmp = readb(S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN; + tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN; if (to) tmp |= S3C2410_RTCALM_ALMEN; - writeb(tmp, S3C2410_RTCALM); + writeb(tmp, s3c_rtc_base + S3C2410_RTCALM); } static void s3c_rtc_setpie(int to) @@ -84,12 +84,12 @@ static void s3c_rtc_setpie(int to) pr_debug("%s: pie=%d\n", __FUNCTION__, to); spin_lock_irq(&s3c_rtc_pie_lock); - tmp = readb(S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE; + tmp = readb(s3c_rtc_base + S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE; if (to) tmp |= S3C2410_TICNT_ENABLE; - writeb(tmp, S3C2410_TICNT); + writeb(tmp, s3c_rtc_base + S3C2410_TICNT); spin_unlock_irq(&s3c_rtc_pie_lock); } @@ -98,13 +98,13 @@ static void s3c_rtc_setfreq(int freq) unsigned int tmp; spin_lock_irq(&s3c_rtc_pie_lock); - tmp = readb(S3C2410_TICNT) & S3C2410_TICNT_ENABLE; + tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE; s3c_rtc_freq = freq; tmp |= (128 / freq)-1; - writeb(tmp, S3C2410_TICNT); + writeb(tmp, s3c_rtc_base + S3C2410_TICNT); spin_unlock_irq(&s3c_rtc_pie_lock); } @@ -113,14 +113,15 @@ static void s3c_rtc_setfreq(int freq) static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) { unsigned int have_retried = 0; + void __iomem *base = s3c_rtc_base; retry_get_time: - rtc_tm->tm_min = readb(S3C2410_RTCMIN); - rtc_tm->tm_hour = readb(S3C2410_RTCHOUR); - rtc_tm->tm_mday = readb(S3C2410_RTCDATE); - rtc_tm->tm_mon = readb(S3C2410_RTCMON); - rtc_tm->tm_year = readb(S3C2410_RTCYEAR); - rtc_tm->tm_sec = readb(S3C2410_RTCSEC); + rtc_tm->tm_min = readb(base + S3C2410_RTCMIN); + rtc_tm->tm_hour = readb(base + S3C2410_RTCHOUR); + rtc_tm->tm_mday = readb(base + S3C2410_RTCDATE); + rtc_tm->tm_mon = readb(base + S3C2410_RTCMON); + rtc_tm->tm_year = readb(base + S3C2410_RTCYEAR); + rtc_tm->tm_sec = readb(base + S3C2410_RTCSEC); /* the only way to work out wether the system was mid-update * when we read it is to check the second counter, and if it @@ -151,17 +152,26 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm) { - /* the rtc gets round the y2k problem by just not supporting it */ + void __iomem *base = s3c_rtc_base; + int year = tm->tm_year - 100; - if (tm->tm_year < 100) + pr_debug("set time %02d.%02d.%02d %02d/%02d/%02d\n", + tm->tm_year, tm->tm_mon, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + + /* we get around y2k by simply not supporting it */ + + if (year < 0 || year >= 100) { + dev_err(dev, "rtc only supports 100 years\n"); return -EINVAL; + } - writeb(BIN2BCD(tm->tm_sec), S3C2410_RTCSEC); - writeb(BIN2BCD(tm->tm_min), S3C2410_RTCMIN); - writeb(BIN2BCD(tm->tm_hour), S3C2410_RTCHOUR); - writeb(BIN2BCD(tm->tm_mday), S3C2410_RTCDATE); - writeb(BIN2BCD(tm->tm_mon + 1), S3C2410_RTCMON); - writeb(BIN2BCD(tm->tm_year - 100), S3C2410_RTCYEAR); + writeb(BIN2BCD(tm->tm_sec), base + S3C2410_RTCSEC); + writeb(BIN2BCD(tm->tm_min), base + S3C2410_RTCMIN); + writeb(BIN2BCD(tm->tm_hour), base + S3C2410_RTCHOUR); + writeb(BIN2BCD(tm->tm_mday), base + S3C2410_RTCDATE); + writeb(BIN2BCD(tm->tm_mon + 1), base + S3C2410_RTCMON); + writeb(BIN2BCD(year), base + S3C2410_RTCYEAR); return 0; } @@ -169,16 +179,17 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm) static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm) { struct rtc_time *alm_tm = &alrm->time; + void __iomem *base = s3c_rtc_base; unsigned int alm_en; - alm_tm->tm_sec = readb(S3C2410_ALMSEC); - alm_tm->tm_min = readb(S3C2410_ALMMIN); - alm_tm->tm_hour = readb(S3C2410_ALMHOUR); - alm_tm->tm_mon = readb(S3C2410_ALMMON); - alm_tm->tm_mday = readb(S3C2410_ALMDATE); - alm_tm->tm_year = readb(S3C2410_ALMYEAR); + alm_tm->tm_sec = readb(base + S3C2410_ALMSEC); + alm_tm->tm_min = readb(base + S3C2410_ALMMIN); + alm_tm->tm_hour = readb(base + S3C2410_ALMHOUR); + alm_tm->tm_mon = readb(base + S3C2410_ALMMON); + alm_tm->tm_mday = readb(base + S3C2410_ALMDATE); + alm_tm->tm_year = readb(base + S3C2410_ALMYEAR); - alm_en = readb(S3C2410_RTCALM); + alm_en = readb(base + S3C2410_RTCALM); pr_debug("read alarm %02x %02x.%02x.%02x %02x/%02x/%02x\n", alm_en, @@ -226,6 +237,7 @@ static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm) static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) { struct rtc_time *tm = &alrm->time; + void __iomem *base = s3c_rtc_base; unsigned int alrm_en; pr_debug("s3c_rtc_setalarm: %d, %02x/%02x/%02x %02x.%02x.%02x\n", @@ -234,32 +246,32 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) tm->tm_hour & 0xff, tm->tm_min & 0xff, tm->tm_sec); - alrm_en = readb(S3C2410_RTCALM) & S3C2410_RTCALM_ALMEN; - writeb(0x00, S3C2410_RTCALM); + alrm_en = readb(base + S3C2410_RTCALM) & S3C2410_RTCALM_ALMEN; + writeb(0x00, base + S3C2410_RTCALM); if (tm->tm_sec < 60 && tm->tm_sec >= 0) { alrm_en |= S3C2410_RTCALM_SECEN; - writeb(BIN2BCD(tm->tm_sec), S3C2410_ALMSEC); + writeb(BIN2BCD(tm->tm_sec), base + S3C2410_ALMSEC); } if (tm->tm_min < 60 && tm->tm_min >= 0) { alrm_en |= S3C2410_RTCALM_MINEN; - writeb(BIN2BCD(tm->tm_min), S3C2410_ALMMIN); + writeb(BIN2BCD(tm->tm_min), base + S3C2410_ALMMIN); } if (tm->tm_hour < 24 && tm->tm_hour >= 0) { alrm_en |= S3C2410_RTCALM_HOUREN; - writeb(BIN2BCD(tm->tm_hour), S3C2410_ALMHOUR); + writeb(BIN2BCD(tm->tm_hour), base + S3C2410_ALMHOUR); } pr_debug("setting S3C2410_RTCALM to %08x\n", alrm_en); - writeb(alrm_en, S3C2410_RTCALM); + writeb(alrm_en, base + S3C2410_RTCALM); if (0) { - alrm_en = readb(S3C2410_RTCALM); + alrm_en = readb(base + S3C2410_RTCALM); alrm_en &= ~S3C2410_RTCALM_ALMEN; - writeb(alrm_en, S3C2410_RTCALM); + writeb(alrm_en, base + S3C2410_RTCALM); disable_irq_wake(s3c_rtc_alarmno); } @@ -319,8 +331,8 @@ static int s3c_rtc_ioctl(struct device *dev, static int s3c_rtc_proc(struct device *dev, struct seq_file *seq) { - unsigned int rtcalm = readb(S3C2410_RTCALM); - unsigned int ticnt = readb (S3C2410_TICNT); + unsigned int rtcalm = readb(s3c_rtc_base + S3C2410_RTCALM); + unsigned int ticnt = readb(s3c_rtc_base + S3C2410_TICNT); seq_printf(seq, "alarm_IRQ\t: %s\n", (rtcalm & S3C2410_RTCALM_ALMEN) ? "yes" : "no" ); @@ -387,39 +399,40 @@ static struct rtc_class_ops s3c_rtcops = { static void s3c_rtc_enable(struct platform_device *pdev, int en) { + void __iomem *base = s3c_rtc_base; unsigned int tmp; if (s3c_rtc_base == NULL) return; if (!en) { - tmp = readb(S3C2410_RTCCON); - writeb(tmp & ~S3C2410_RTCCON_RTCEN, S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp & ~S3C2410_RTCCON_RTCEN, base + S3C2410_RTCCON); - tmp = readb(S3C2410_TICNT); - writeb(tmp & ~S3C2410_TICNT_ENABLE, S3C2410_TICNT); + tmp = readb(base + S3C2410_TICNT); + writeb(tmp & ~S3C2410_TICNT_ENABLE, base + S3C2410_TICNT); } else { /* re-enable the device, and check it is ok */ - if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){ + if ((readb(base+S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){ dev_info(&pdev->dev, "rtc disabled, re-enabling\n"); - tmp = readb(S3C2410_RTCCON); - writeb(tmp | S3C2410_RTCCON_RTCEN , S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp|S3C2410_RTCCON_RTCEN, base+S3C2410_RTCCON); } - if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){ + if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){ dev_info(&pdev->dev, "removing RTCCON_CNTSEL\n"); - tmp = readb(S3C2410_RTCCON); - writeb(tmp& ~S3C2410_RTCCON_CNTSEL , S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp& ~S3C2410_RTCCON_CNTSEL, base+S3C2410_RTCCON); } - if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){ + if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){ dev_info(&pdev->dev, "removing RTCCON_CLKRST\n"); - tmp = readb(S3C2410_RTCCON); - writeb(tmp & ~S3C2410_RTCCON_CLKRST, S3C2410_RTCCON); + tmp = readb(base + S3C2410_RTCCON); + writeb(tmp & ~S3C2410_RTCCON_CLKRST, base+S3C2410_RTCCON); } } } @@ -475,8 +488,8 @@ static int s3c_rtc_probe(struct platform_device *pdev) } s3c_rtc_mem = request_mem_region(res->start, - res->end-res->start+1, - pdev->name); + res->end-res->start+1, + pdev->name); if (s3c_rtc_mem == NULL) { dev_err(&pdev->dev, "failed to reserve memory region\n"); @@ -495,7 +508,8 @@ static int s3c_rtc_probe(struct platform_device *pdev) s3c_rtc_enable(pdev, 1); - pr_debug("s3c2410_rtc: RTCCON=%02x\n", readb(S3C2410_RTCCON)); + pr_debug("s3c2410_rtc: RTCCON=%02x\n", + readb(s3c_rtc_base + S3C2410_RTCCON)); s3c_rtc_setfreq(s3c_rtc_freq); @@ -543,7 +557,7 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state) /* save TICNT for anyone using periodic interrupts */ - ticnt_save = readb(S3C2410_TICNT); + ticnt_save = readb(s3c_rtc_base + S3C2410_TICNT); /* calculate time delta for suspend */ @@ -567,7 +581,7 @@ static int s3c_rtc_resume(struct platform_device *pdev) rtc_tm_to_time(&tm, &time.tv_sec); restore_time_delta(&s3c_rtc_delta, &time); - writeb(ticnt_save, S3C2410_TICNT); + writeb(ticnt_save, s3c_rtc_base + S3C2410_TICNT); return 0; } #else diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 9d0c6e1a0e6..9af02c79ce8 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -54,11 +54,11 @@ struct dasd_devmap { */ struct dasd_server_ssid_map { struct list_head list; - struct server_id { + struct system_id { char vendor[4]; char serial[15]; + __u16 ssid; } sid; - __u16 ssid; }; static struct list_head dasd_server_ssid_list; @@ -904,14 +904,14 @@ dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) return -ENOMEM; strncpy(srv->sid.vendor, uid->vendor, sizeof(srv->sid.vendor) - 1); strncpy(srv->sid.serial, uid->serial, sizeof(srv->sid.serial) - 1); - srv->ssid = uid->ssid; + srv->sid.ssid = uid->ssid; /* server is already contained ? */ spin_lock(&dasd_devmap_lock); devmap->uid = *uid; list_for_each_entry(tmp, &dasd_server_ssid_list, list) { if (!memcmp(&srv->sid, &tmp->sid, - sizeof(struct dasd_server_ssid_map))) { + sizeof(struct system_id))) { kfree(srv); srv = NULL; break; diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 957ed5db98e..b7a7fac3f7c 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -607,7 +607,7 @@ dasd_eckd_psf_ssc(struct dasd_device *device) * Valide storage server of current device. */ static int -dasd_eckd_validate_server(struct dasd_device *device) +dasd_eckd_validate_server(struct dasd_device *device, struct dasd_uid *uid) { int rc; @@ -616,11 +616,11 @@ dasd_eckd_validate_server(struct dasd_device *device) return 0; rc = dasd_eckd_psf_ssc(device); - if (rc) - /* may be requested feature is not available on server, - * therefore just report error and go ahead */ - DEV_MESSAGE(KERN_INFO, device, - "Perform Subsystem Function returned rc=%d", rc); + /* may be requested feature is not available on server, + * therefore just report error and go ahead */ + DEV_MESSAGE(KERN_INFO, device, + "PSF-SSC on storage subsystem %s.%s.%04x returned rc=%d", + uid->vendor, uid->serial, uid->ssid, rc); /* RE-Read Configuration Data */ return dasd_eckd_read_conf(device); } @@ -666,7 +666,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device) return rc; rc = dasd_set_uid(device->cdev, &uid); if (rc == 1) /* new server found */ - rc = dasd_eckd_validate_server(device); + rc = dasd_eckd_validate_server(device, &uid); if (rc) return rc; diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 9cd789b8acd..adc9d8f2c28 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -112,6 +112,105 @@ _zfcp_hex_dump(char *addr, int count) printk("\n"); } + +/****************************************************************/ +/****** Functions to handle the request ID hash table ********/ +/****************************************************************/ + +#define ZFCP_LOG_AREA ZFCP_LOG_AREA_FSF + +static int zfcp_reqlist_init(struct zfcp_adapter *adapter) +{ + int i; + + adapter->req_list = kcalloc(REQUEST_LIST_SIZE, sizeof(struct list_head), + GFP_KERNEL); + + if (!adapter->req_list) + return -ENOMEM; + + for (i=0; i<REQUEST_LIST_SIZE; i++) + INIT_LIST_HEAD(&adapter->req_list[i]); + + return 0; +} + +static void zfcp_reqlist_free(struct zfcp_adapter *adapter) +{ + struct zfcp_fsf_req *request, *tmp; + unsigned int i; + + for (i=0; i<REQUEST_LIST_SIZE; i++) { + if (list_empty(&adapter->req_list[i])) + continue; + + list_for_each_entry_safe(request, tmp, + &adapter->req_list[i], list) + list_del(&request->list); + } + + kfree(adapter->req_list); +} + +void zfcp_reqlist_add(struct zfcp_adapter *adapter, + struct zfcp_fsf_req *fsf_req) +{ + unsigned int i; + + i = fsf_req->req_id % REQUEST_LIST_SIZE; + list_add_tail(&fsf_req->list, &adapter->req_list[i]); +} + +void zfcp_reqlist_remove(struct zfcp_adapter *adapter, unsigned long req_id) +{ + struct zfcp_fsf_req *request, *tmp; + unsigned int i, counter; + u64 dbg_tmp[2]; + + i = req_id % REQUEST_LIST_SIZE; + BUG_ON(list_empty(&adapter->req_list[i])); + + counter = 0; + list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list) { + if (request->req_id == req_id) { + dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active); + dbg_tmp[1] = (u64) counter; + debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16); + list_del(&request->list); + break; + } + counter++; + } +} + +struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *adapter, + unsigned long req_id) +{ + struct zfcp_fsf_req *request, *tmp; + unsigned int i; + + i = req_id % REQUEST_LIST_SIZE; + + list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list) + if (request->req_id == req_id) + return request; + + return NULL; +} + +int zfcp_reqlist_isempty(struct zfcp_adapter *adapter) +{ + unsigned int i; + + for (i=0; i<REQUEST_LIST_SIZE; i++) + if (!list_empty(&adapter->req_list[i])) + return 0; + + return 1; +} + +#undef ZFCP_LOG_AREA + /****************************************************************/ /************** Uncategorised Functions *************************/ /****************************************************************/ @@ -961,8 +1060,12 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) INIT_LIST_HEAD(&adapter->port_remove_lh); /* initialize list of fsf requests */ - spin_lock_init(&adapter->fsf_req_list_lock); - INIT_LIST_HEAD(&adapter->fsf_req_list_head); + spin_lock_init(&adapter->req_list_lock); + retval = zfcp_reqlist_init(adapter); + if (retval) { + ZFCP_LOG_INFO("request list initialization failed\n"); + goto failed_low_mem_buffers; + } /* initialize debug locks */ @@ -1041,8 +1144,6 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) * !0 - struct zfcp_adapter data structure could not be removed * (e.g. still used) * locks: adapter list write lock is assumed to be held by caller - * adapter->fsf_req_list_lock is taken and released within this - * function and must not be held on entry */ void zfcp_adapter_dequeue(struct zfcp_adapter *adapter) @@ -1054,14 +1155,14 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter) zfcp_sysfs_adapter_remove_files(&adapter->ccw_device->dev); dev_set_drvdata(&adapter->ccw_device->dev, NULL); /* sanity check: no pending FSF requests */ - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - retval = !list_empty(&adapter->fsf_req_list_head); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - if (retval) { + spin_lock_irqsave(&adapter->req_list_lock, flags); + retval = zfcp_reqlist_isempty(adapter); + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + if (!retval) { ZFCP_LOG_NORMAL("bug: adapter %s (%p) still in use, " "%i requests outstanding\n", zfcp_get_busid_by_adapter(adapter), adapter, - atomic_read(&adapter->fsf_reqs_active)); + atomic_read(&adapter->reqs_active)); retval = -EBUSY; goto out; } @@ -1087,6 +1188,7 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter) zfcp_free_low_mem_buffers(adapter); /* free memory of adapter data structure and queues */ zfcp_qdio_free_queues(adapter); + zfcp_reqlist_free(adapter); kfree(adapter->fc_stats); kfree(adapter->stats_reset_data); ZFCP_LOG_TRACE("freeing adapter structure\n"); diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 57d8e4bfb8d..fdabadeaa9e 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -164,6 +164,11 @@ zfcp_ccw_set_online(struct ccw_device *ccw_device) retval = zfcp_adapter_scsi_register(adapter); if (retval) goto out_scsi_register; + + /* initialize request counter */ + BUG_ON(!zfcp_reqlist_isempty(adapter)); + adapter->req_no = 0; + zfcp_erp_modify_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET); zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 2df512a18e2..94d1b74db35 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -52,7 +52,7 @@ /********************* GENERAL DEFINES *********************************/ /* zfcp version number, it consists of major, minor, and patch-level number */ -#define ZFCP_VERSION "4.7.0" +#define ZFCP_VERSION "4.8.0" /** * zfcp_sg_to_address - determine kernel address from struct scatterlist @@ -80,7 +80,7 @@ zfcp_address_to_sg(void *address, struct scatterlist *list) #define REQUEST_LIST_SIZE 128 /********************* SCSI SPECIFIC DEFINES *********************************/ -#define ZFCP_SCSI_ER_TIMEOUT (100*HZ) +#define ZFCP_SCSI_ER_TIMEOUT (10*HZ) /********************* CIO/QDIO SPECIFIC DEFINES *****************************/ @@ -886,11 +886,11 @@ struct zfcp_adapter { struct list_head port_remove_lh; /* head of ports to be removed */ u32 ports; /* number of remote ports */ - struct timer_list scsi_er_timer; /* SCSI err recovery watch */ - struct list_head fsf_req_list_head; /* head of FSF req list */ - spinlock_t fsf_req_list_lock; /* lock for ops on list of - FSF requests */ - atomic_t fsf_reqs_active; /* # active FSF reqs */ + struct timer_list scsi_er_timer; /* SCSI err recovery watch */ + atomic_t reqs_active; /* # active FSF reqs */ + unsigned long req_no; /* unique FSF req number */ + struct list_head *req_list; /* list of pending reqs */ + spinlock_t req_list_lock; /* request list lock */ struct zfcp_qdio_queue request_queue; /* request queue */ u32 fsf_req_seq_no; /* FSF cmnd seq number */ wait_queue_head_t request_wq; /* can be used to wait for @@ -986,6 +986,7 @@ struct zfcp_unit { /* FSF request */ struct zfcp_fsf_req { struct list_head list; /* list of FSF requests */ + unsigned long req_id; /* unique request ID */ struct zfcp_adapter *adapter; /* adapter request belongs to */ u8 sbal_number; /* nr of SBALs free for use */ u8 sbal_first; /* first SBAL for this request */ diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 8ec8da0beaa..7f60b6fdf72 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -64,8 +64,8 @@ static int zfcp_erp_strategy_check_action(struct zfcp_erp_action *, int); static int zfcp_erp_adapter_strategy(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *, int); static int zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *); -static int zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *); -static int zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *); +static void zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *); +static void zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *); static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *); @@ -93,10 +93,9 @@ static int zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *); static int zfcp_erp_unit_strategy_close(struct zfcp_erp_action *); static int zfcp_erp_unit_strategy_open(struct zfcp_erp_action *); -static int zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *); -static int zfcp_erp_action_dismiss_port(struct zfcp_port *); -static int zfcp_erp_action_dismiss_unit(struct zfcp_unit *); -static int zfcp_erp_action_dismiss(struct zfcp_erp_action *); +static void zfcp_erp_action_dismiss_port(struct zfcp_port *); +static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *); +static void zfcp_erp_action_dismiss(struct zfcp_erp_action *); static int zfcp_erp_action_enqueue(int, struct zfcp_adapter *, struct zfcp_port *, struct zfcp_unit *); @@ -135,29 +134,39 @@ zfcp_fsf_request_timeout_handler(unsigned long data) zfcp_erp_adapter_reopen(adapter, 0); } -/* - * function: zfcp_fsf_scsi_er_timeout_handler - * - * purpose: This function needs to be called whenever a SCSI error recovery - * action (abort/reset) does not return. - * Re-opening the adapter means that the command can be returned - * by zfcp (it is guarranteed that it does not return via the - * adapter anymore). The buffer can then be used again. - * - * returns: sod all +/** + * zfcp_fsf_scsi_er_timeout_handler - timeout handler for scsi eh tasks + * + * This function needs to be called whenever a SCSI error recovery + * action (abort/reset) does not return. Re-opening the adapter means + * that the abort/reset command can be returned by zfcp. It won't complete + * via the adapter anymore (because qdio queues are closed). If ERP is + * already running on this adapter it will be stopped. */ -void -zfcp_fsf_scsi_er_timeout_handler(unsigned long data) +void zfcp_fsf_scsi_er_timeout_handler(unsigned long data) { struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; + unsigned long flags; ZFCP_LOG_NORMAL("warning: SCSI error recovery timed out. " "Restarting all operations on the adapter %s\n", zfcp_get_busid_by_adapter(adapter)); debug_text_event(adapter->erp_dbf, 1, "eh_lmem_tout"); - zfcp_erp_adapter_reopen(adapter, 0); - return; + write_lock_irqsave(&adapter->erp_lock, flags); + if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING, + &adapter->status)) { + zfcp_erp_modify_adapter_status(adapter, + ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN, + ZFCP_CLEAR); + zfcp_erp_action_dismiss_adapter(adapter); + write_unlock_irqrestore(&adapter->erp_lock, flags); + /* dismiss all pending requests including requests for ERP */ + zfcp_fsf_req_dismiss_all(adapter); + adapter->fsf_req_seq_no = 0; + } else + write_unlock_irqrestore(&adapter->erp_lock, flags); + zfcp_erp_adapter_reopen(adapter, 0); } /* @@ -670,17 +679,10 @@ zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear_mask) return retval; } -/* - * function: - * - * purpose: disable I/O, - * return any open requests and clean them up, - * aim: no pending and incoming I/O - * - * returns: +/** + * zfcp_erp_adapter_block - mark adapter as blocked, block scsi requests */ -static void -zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask) +static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask) { debug_text_event(adapter->erp_dbf, 6, "a_bl"); zfcp_erp_modify_adapter_status(adapter, @@ -688,15 +690,10 @@ zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask) clear_mask, ZFCP_CLEAR); } -/* - * function: - * - * purpose: enable I/O - * - * returns: +/** + * zfcp_erp_adapter_unblock - mark adapter as unblocked, allow scsi requests */ -static void -zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter) +static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter) { debug_text_event(adapter->erp_dbf, 6, "a_ubl"); atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status); @@ -848,18 +845,16 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action) struct zfcp_adapter *adapter = erp_action->adapter; if (erp_action->fsf_req) { - /* take lock to ensure that request is not being deleted meanwhile */ - spin_lock(&adapter->fsf_req_list_lock); - /* check whether fsf req does still exist */ - list_for_each_entry(fsf_req, &adapter->fsf_req_list_head, list) - if (fsf_req == erp_action->fsf_req) - break; - if (fsf_req && (fsf_req->erp_action == erp_action)) { + /* take lock to ensure that request is not deleted meanwhile */ + spin_lock(&adapter->req_list_lock); + if ((!zfcp_reqlist_ismember(adapter, + erp_action->fsf_req->req_id)) && + (fsf_req->erp_action == erp_action)) { /* fsf_req still exists */ debug_text_event(adapter->erp_dbf, 3, "a_ca_req"); debug_event(adapter->erp_dbf, 3, &fsf_req, sizeof (unsigned long)); - /* dismiss fsf_req of timed out or dismissed erp_action */ + /* dismiss fsf_req of timed out/dismissed erp_action */ if (erp_action->status & (ZFCP_STATUS_ERP_DISMISSED | ZFCP_STATUS_ERP_TIMEDOUT)) { debug_text_event(adapter->erp_dbf, 3, @@ -892,30 +887,22 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action) */ erp_action->fsf_req = NULL; } - spin_unlock(&adapter->fsf_req_list_lock); + spin_unlock(&adapter->req_list_lock); } else debug_text_event(adapter->erp_dbf, 3, "a_ca_noreq"); return retval; } -/* - * purpose: generic handler for asynchronous events related to erp_action events - * (normal completion, time-out, dismissing, retry after - * low memory condition) - * - * note: deletion of timer is not required (e.g. in case of a time-out), - * but a second try does no harm, - * we leave it in here to allow for greater simplification +/** + * zfcp_erp_async_handler_nolock - complete erp_action * - * returns: 0 - there was an action to handle - * !0 - otherwise + * Used for normal completion, time-out, dismissal and failure after + * low memory condition. */ -static int -zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action, - unsigned long set_mask) +static void zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action, + unsigned long set_mask) { - int retval; struct zfcp_adapter *adapter = erp_action->adapter; if (zfcp_erp_action_exists(erp_action) == ZFCP_ERP_ACTION_RUNNING) { @@ -926,43 +913,26 @@ zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action, del_timer(&erp_action->timer); erp_action->status |= set_mask; zfcp_erp_action_ready(erp_action); - retval = 0; } else { /* action is ready or gone - nothing to do */ debug_text_event(adapter->erp_dbf, 3, "a_asyh_gone"); debug_event(adapter->erp_dbf, 3, &erp_action->action, sizeof (int)); - retval = 1; } - - return retval; } -/* - * purpose: generic handler for asynchronous events related to erp_action - * events (normal completion, time-out, dismissing, retry after - * low memory condition) - * - * note: deletion of timer is not required (e.g. in case of a time-out), - * but a second try does no harm, - * we leave it in here to allow for greater simplification - * - * returns: 0 - there was an action to handle - * !0 - otherwise +/** + * zfcp_erp_async_handler - wrapper for erp_async_handler_nolock w/ locking */ -int -zfcp_erp_async_handler(struct zfcp_erp_action *erp_action, - unsigned long set_mask) +void zfcp_erp_async_handler(struct zfcp_erp_action *erp_action, + unsigned long set_mask) { struct zfcp_adapter *adapter = erp_action->adapter; unsigned long flags; - int retval; write_lock_irqsave(&adapter->erp_lock, flags); - retval = zfcp_erp_async_handler_nolock(erp_action, set_mask); + zfcp_erp_async_handler_nolock(erp_action, set_mask); write_unlock_irqrestore(&adapter->erp_lock, flags); - - return retval; } /* @@ -999,17 +969,15 @@ zfcp_erp_timeout_handler(unsigned long data) zfcp_erp_async_handler(erp_action, ZFCP_STATUS_ERP_TIMEDOUT); } -/* - * purpose: is called for an erp_action which needs to be ended - * though not being done, - * this is usually required if an higher is generated, - * action gets an appropriate flag and will be processed - * accordingly +/** + * zfcp_erp_action_dismiss - dismiss an erp_action * - * locks: erp_lock held (thus we need to call another handler variant) + * adapter->erp_lock must be held + * + * Dismissal of an erp_action is usually required if an erp_action of + * higher priority is generated. */ -static int -zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action) +static void zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action) { struct zfcp_adapter *adapter = erp_action->adapter; @@ -1017,8 +985,6 @@ zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action) debug_event(adapter->erp_dbf, 2, &erp_action->action, sizeof (int)); zfcp_erp_async_handler_nolock(erp_action, ZFCP_STATUS_ERP_DISMISSED); - - return 0; } int @@ -2074,18 +2040,12 @@ zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: zfcp_qdio_cleanup - * - * purpose: cleans up QDIO operation for the specified adapter - * - * returns: 0 - successful cleanup - * !0 - failed cleanup +/** + * zfcp_erp_adapter_strategy_close_qdio - close qdio queues for an adapter */ -int +static void zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action) { - int retval = ZFCP_ERP_SUCCEEDED; int first_used; int used_count; struct zfcp_adapter *adapter = erp_action->adapter; @@ -2094,15 +2054,13 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action) ZFCP_LOG_DEBUG("error: attempt to shut down inactive QDIO " "queues on adapter %s\n", zfcp_get_busid_by_adapter(adapter)); - retval = ZFCP_ERP_FAILED; - goto out; + return; } /* * Get queue_lock and clear QDIOUP flag. Thus it's guaranteed that * do_QDIO won't be called while qdio_shutdown is in progress. */ - write_lock_irq(&adapter->request_queue.queue_lock); atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status); write_unlock_irq(&adapter->request_queue.queue_lock); @@ -2134,8 +2092,6 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action) adapter->request_queue.free_index = 0; atomic_set(&adapter->request_queue.free_count, 0); adapter->request_queue.distance_from_int = 0; - out: - return retval; } static int @@ -2258,11 +2214,11 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action) "%s)\n", zfcp_get_busid_by_adapter(adapter)); ret = ZFCP_ERP_FAILED; } - if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status)) { - ZFCP_LOG_INFO("error: exchange port data failed (adapter " + + /* don't treat as error for the sake of compatibility */ + if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status)) + ZFCP_LOG_INFO("warning: exchange port data failed (adapter " "%s\n", zfcp_get_busid_by_adapter(adapter)); - ret = ZFCP_ERP_FAILED; - } return ret; } @@ -2292,18 +2248,12 @@ zfcp_erp_adapter_strategy_open_fsf_statusread(struct zfcp_erp_action return retval; } -/* - * function: zfcp_fsf_cleanup - * - * purpose: cleanup FSF operation for specified adapter - * - * returns: 0 - FSF operation successfully cleaned up - * !0 - failed to cleanup FSF operation for this adapter +/** + * zfcp_erp_adapter_strategy_close_fsf - stop FSF operations for an adapter */ -static int +static void zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action) { - int retval = ZFCP_ERP_SUCCEEDED; struct zfcp_adapter *adapter = erp_action->adapter; /* @@ -2317,8 +2267,6 @@ zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action) /* all ports and units are closed */ zfcp_erp_modify_adapter_status(adapter, ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR); - - return retval; } /* @@ -3293,10 +3241,8 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, } -static int -zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) +void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) { - int retval = 0; struct zfcp_port *port; debug_text_event(adapter->erp_dbf, 5, "a_actab"); @@ -3305,14 +3251,10 @@ zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) else list_for_each_entry(port, &adapter->port_list_head, list) zfcp_erp_action_dismiss_port(port); - - return retval; } -static int -zfcp_erp_action_dismiss_port(struct zfcp_port *port) +static void zfcp_erp_action_dismiss_port(struct zfcp_port *port) { - int retval = 0; struct zfcp_unit *unit; struct zfcp_adapter *adapter = port->adapter; @@ -3323,22 +3265,16 @@ zfcp_erp_action_dismiss_port(struct zfcp_port *port) else list_for_each_entry(unit, &port->unit_list_head, list) zfcp_erp_action_dismiss_unit(unit); - - return retval; } -static int -zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit) +static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit) { - int retval = 0; struct zfcp_adapter *adapter = unit->port->adapter; debug_text_event(adapter->erp_dbf, 5, "u_actab"); debug_event(adapter->erp_dbf, 5, &unit->fcp_lun, sizeof (fcp_lun_t)); if (atomic_test_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &unit->status)) zfcp_erp_action_dismiss(&unit->erp_action); - - return retval; } static inline void diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index d02366004cd..146d7a2b4c4 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -63,7 +63,6 @@ extern int zfcp_qdio_allocate_queues(struct zfcp_adapter *); extern void zfcp_qdio_free_queues(struct zfcp_adapter *); extern int zfcp_qdio_determine_pci(struct zfcp_qdio_queue *, struct zfcp_fsf_req *); -extern int zfcp_qdio_reqid_check(struct zfcp_adapter *, void *); extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req (struct zfcp_fsf_req *, int, int); @@ -140,6 +139,7 @@ extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int); extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int); extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int); extern void zfcp_erp_adapter_failed(struct zfcp_adapter *); +extern void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *); extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int); extern int zfcp_erp_port_reopen(struct zfcp_port *, int); @@ -156,7 +156,7 @@ extern void zfcp_erp_unit_failed(struct zfcp_unit *); extern int zfcp_erp_thread_setup(struct zfcp_adapter *); extern int zfcp_erp_thread_kill(struct zfcp_adapter *); extern int zfcp_erp_wait(struct zfcp_adapter *); -extern int zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); +extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); extern int zfcp_test_link(struct zfcp_port *); @@ -190,5 +190,10 @@ extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *, struct zfcp_fsf_req *); extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *, struct scsi_cmnd *); +extern void zfcp_reqlist_add(struct zfcp_adapter *, struct zfcp_fsf_req *); +extern void zfcp_reqlist_remove(struct zfcp_adapter *, unsigned long); +extern struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *, + unsigned long); +extern int zfcp_reqlist_isempty(struct zfcp_adapter *); #endif /* ZFCP_EXT_H */ diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 31db2b06fab..ff2eacf5ec8 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -49,7 +49,6 @@ static int zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *); static void zfcp_fsf_link_down_info_eval(struct zfcp_adapter *, struct fsf_link_down_info *); static int zfcp_fsf_req_dispatch(struct zfcp_fsf_req *); -static void zfcp_fsf_req_dismiss(struct zfcp_fsf_req *); /* association between FSF command and FSF QTCB type */ static u32 fsf_qtcb_type[] = { @@ -146,47 +145,48 @@ zfcp_fsf_req_free(struct zfcp_fsf_req *fsf_req) kfree(fsf_req); } -/* - * function: - * - * purpose: - * - * returns: - * - * note: qdio queues shall be down (no ongoing inbound processing) +/** + * zfcp_fsf_req_dismiss - dismiss a single fsf request */ -int -zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) +static void zfcp_fsf_req_dismiss(struct zfcp_adapter *adapter, + struct zfcp_fsf_req *fsf_req, + unsigned int counter) { - struct zfcp_fsf_req *fsf_req, *tmp; - unsigned long flags; - LIST_HEAD(remove_queue); + u64 dbg_tmp[2]; - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - list_splice_init(&adapter->fsf_req_list_head, &remove_queue); - atomic_set(&adapter->fsf_reqs_active, 0); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - - list_for_each_entry_safe(fsf_req, tmp, &remove_queue, list) { - list_del(&fsf_req->list); - zfcp_fsf_req_dismiss(fsf_req); - } - - return 0; + dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active); + dbg_tmp[1] = (u64) counter; + debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16); + list_del(&fsf_req->list); + fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; + zfcp_fsf_req_complete(fsf_req); } -/* - * function: - * - * purpose: - * - * returns: +/** + * zfcp_fsf_req_dismiss_all - dismiss all remaining fsf requests */ -static void -zfcp_fsf_req_dismiss(struct zfcp_fsf_req *fsf_req) +int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) { - fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; - zfcp_fsf_req_complete(fsf_req); + struct zfcp_fsf_req *request, *tmp; + unsigned long flags; + unsigned int i, counter; + + spin_lock_irqsave(&adapter->req_list_lock, flags); + atomic_set(&adapter->reqs_active, 0); + for (i=0; i<REQUEST_LIST_SIZE; i++) { + if (list_empty(&adapter->req_list[i])) + continue; + + counter = 0; + list_for_each_entry_safe(request, tmp, + &adapter->req_list[i], list) { + zfcp_fsf_req_dismiss(adapter, request, counter); + counter++; + } + } + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + + return 0; } /* @@ -4592,12 +4592,14 @@ static inline void zfcp_fsf_req_qtcb_init(struct zfcp_fsf_req *fsf_req) { if (likely(fsf_req->qtcb != NULL)) { - fsf_req->qtcb->prefix.req_seq_no = fsf_req->adapter->fsf_req_seq_no; - fsf_req->qtcb->prefix.req_id = (unsigned long)fsf_req; + fsf_req->qtcb->prefix.req_seq_no = + fsf_req->adapter->fsf_req_seq_no; + fsf_req->qtcb->prefix.req_id = fsf_req->req_id; fsf_req->qtcb->prefix.ulp_info = ZFCP_ULP_INFO_VERSION; - fsf_req->qtcb->prefix.qtcb_type = fsf_qtcb_type[fsf_req->fsf_command]; + fsf_req->qtcb->prefix.qtcb_type = + fsf_qtcb_type[fsf_req->fsf_command]; fsf_req->qtcb->prefix.qtcb_version = ZFCP_QTCB_VERSION; - fsf_req->qtcb->header.req_handle = (unsigned long)fsf_req; + fsf_req->qtcb->header.req_handle = fsf_req->req_id; fsf_req->qtcb->header.fsf_command = fsf_req->fsf_command; } } @@ -4654,6 +4656,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags, { volatile struct qdio_buffer_element *sbale; struct zfcp_fsf_req *fsf_req = NULL; + unsigned long flags; int ret = 0; struct zfcp_qdio_queue *req_queue = &adapter->request_queue; @@ -4668,6 +4671,12 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags, fsf_req->adapter = adapter; fsf_req->fsf_command = fsf_cmd; + INIT_LIST_HEAD(&fsf_req->list); + + /* unique request id */ + spin_lock_irqsave(&adapter->req_list_lock, flags); + fsf_req->req_id = adapter->req_no++; + spin_unlock_irqrestore(&adapter->req_list_lock, flags); zfcp_fsf_req_qtcb_init(fsf_req); @@ -4707,7 +4716,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags, sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0); /* setup common SBALE fields */ - sbale[0].addr = fsf_req; + sbale[0].addr = (void *) fsf_req->req_id; sbale[0].flags |= SBAL_FLAGS0_COMMAND; if (likely(fsf_req->qtcb != NULL)) { sbale[1].addr = (void *) fsf_req->qtcb; @@ -4747,7 +4756,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) volatile struct qdio_buffer_element *sbale; int inc_seq_no; int new_distance_from_int; - unsigned long flags; + u64 dbg_tmp[2]; int retval = 0; adapter = fsf_req->adapter; @@ -4761,10 +4770,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE, (char *) sbale[1].addr, sbale[1].length); - /* put allocated FSF request at list tail */ - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - list_add_tail(&fsf_req->list, &adapter->fsf_req_list_head); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); + /* put allocated FSF request into hash table */ + spin_lock(&adapter->req_list_lock); + zfcp_reqlist_add(adapter, fsf_req); + spin_unlock(&adapter->req_list_lock); inc_seq_no = (fsf_req->qtcb != NULL); @@ -4803,6 +4812,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) QDIO_FLAG_SYNC_OUTPUT, 0, fsf_req->sbal_first, fsf_req->sbal_number, NULL); + dbg_tmp[0] = (unsigned long) sbale[0].addr; + dbg_tmp[1] = (u64) retval; + debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16); + if (unlikely(retval)) { /* Queues are down..... */ retval = -EIO; @@ -4812,22 +4825,17 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) */ if (timer) del_timer(timer); - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - list_del(&fsf_req->list); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - /* - * adjust the number of free SBALs in request queue as well as - * position of first one - */ + spin_lock(&adapter->req_list_lock); + zfcp_reqlist_remove(adapter, fsf_req->req_id); + spin_unlock(&adapter->req_list_lock); + /* undo changes in request queue made for this request */ zfcp_qdio_zero_sbals(req_queue->buffer, fsf_req->sbal_first, fsf_req->sbal_number); atomic_add(fsf_req->sbal_number, &req_queue->free_count); - req_queue->free_index -= fsf_req->sbal_number; /* increase */ + req_queue->free_index -= fsf_req->sbal_number; req_queue->free_index += QDIO_MAX_BUFFERS_PER_Q; req_queue->free_index %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */ - ZFCP_LOG_DEBUG - ("error: do_QDIO failed. Buffers could not be enqueued " - "to request queue.\n"); + zfcp_erp_adapter_reopen(adapter, 0); } else { req_queue->distance_from_int = new_distance_from_int; /* @@ -4843,7 +4851,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer) adapter->fsf_req_seq_no++; /* count FSF requests pending */ - atomic_inc(&adapter->fsf_reqs_active); + atomic_inc(&adapter->reqs_active); } return retval; } diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 49ea5add4ab..dbd9f48e863 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -282,6 +282,37 @@ zfcp_qdio_request_handler(struct ccw_device *ccw_device, return; } +/** + * zfcp_qdio_reqid_check - checks for valid reqids or unsolicited status + */ +static int zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, + unsigned long req_id) +{ + struct zfcp_fsf_req *fsf_req; + unsigned long flags; + + debug_long_event(adapter->erp_dbf, 4, req_id); + + spin_lock_irqsave(&adapter->req_list_lock, flags); + fsf_req = zfcp_reqlist_ismember(adapter, req_id); + + if (!fsf_req) { + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + ZFCP_LOG_NORMAL("error: unknown request id (%ld).\n", req_id); + zfcp_erp_adapter_reopen(adapter, 0); + return -EINVAL; + } + + zfcp_reqlist_remove(adapter, req_id); + atomic_dec(&adapter->reqs_active); + spin_unlock_irqrestore(&adapter->req_list_lock, flags); + + /* finish the FSF request */ + zfcp_fsf_req_complete(fsf_req); + + return 0; +} + /* * function: zfcp_qdio_response_handler * @@ -344,7 +375,7 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device, /* look for QDIO request identifiers in SB */ buffere = &buffer->element[buffere_index]; retval = zfcp_qdio_reqid_check(adapter, - (void *) buffere->addr); + (unsigned long) buffere->addr); if (retval) { ZFCP_LOG_NORMAL("bug: unexpected inbound " @@ -415,52 +446,6 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device, return; } -/* - * function: zfcp_qdio_reqid_check - * - * purpose: checks for valid reqids or unsolicited status - * - * returns: 0 - valid request id or unsolicited status - * !0 - otherwise - */ -int -zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr) -{ - struct zfcp_fsf_req *fsf_req; - unsigned long flags; - - /* invalid (per convention used in this driver) */ - if (unlikely(!sbale_addr)) { - ZFCP_LOG_NORMAL("bug: invalid reqid\n"); - return -EINVAL; - } - - /* valid request id and thus (hopefully :) valid fsf_req address */ - fsf_req = (struct zfcp_fsf_req *) sbale_addr; - - /* serialize with zfcp_fsf_req_dismiss_all */ - spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); - if (list_empty(&adapter->fsf_req_list_head)) { - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - return 0; - } - list_del(&fsf_req->list); - atomic_dec(&adapter->fsf_reqs_active); - spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - - if (unlikely(adapter != fsf_req->adapter)) { - ZFCP_LOG_NORMAL("bug: invalid reqid (fsf_req=%p, " - "fsf_req->adapter=%p, adapter=%p)\n", - fsf_req, fsf_req->adapter, adapter); - return -EINVAL; - } - - /* finish the FSF request */ - zfcp_fsf_req_complete(fsf_req); - - return 0; -} - /** * zfcp_qdio_sbale_get - return pointer to SBALE of qdio_queue * @queue: queue from which SBALE should be returned diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 671f4a6a5d1..1bb55086db9 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -30,7 +30,6 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *, void (*done) (struct scsi_cmnd *)); static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *); static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *); -static int zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *); static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *); static int zfcp_task_management_function(struct zfcp_unit *, u8, struct scsi_cmnd *); @@ -46,30 +45,22 @@ struct zfcp_data zfcp_data = { .scsi_host_template = { .name = ZFCP_NAME, .proc_name = "zfcp", - .proc_info = NULL, - .detect = NULL, .slave_alloc = zfcp_scsi_slave_alloc, .slave_configure = zfcp_scsi_slave_configure, .slave_destroy = zfcp_scsi_slave_destroy, .queuecommand = zfcp_scsi_queuecommand, .eh_abort_handler = zfcp_scsi_eh_abort_handler, .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler, - .eh_bus_reset_handler = zfcp_scsi_eh_bus_reset_handler, + .eh_bus_reset_handler = zfcp_scsi_eh_host_reset_handler, .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler, .can_queue = 4096, .this_id = -1, - /* - * FIXME: - * one less? can zfcp_create_sbale cope with it? - */ .sg_tablesize = ZFCP_MAX_SBALES_PER_REQ, .cmd_per_lun = 1, - .unchecked_isa_dma = 0, .use_clustering = 1, .sdev_attrs = zfcp_sysfs_sdev_attrs, }, .driver_version = ZFCP_VERSION, - /* rest initialised with zeros */ }; /* Find start of Response Information in FCP response unit*/ @@ -176,8 +167,14 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp) return retval; } -static void -zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) +/** + * zfcp_scsi_slave_destroy - called when scsi device is removed + * + * Remove reference to associated scsi device for an zfcp_unit. + * Mark zfcp_unit as failed. The scsi device might be deleted via sysfs + * or a scan for this device might have failed. + */ +static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) { struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata; @@ -185,6 +182,7 @@ zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status); sdpnt->hostdata = NULL; unit->device = NULL; + zfcp_erp_unit_failed(unit); zfcp_unit_put(unit); } else { ZFCP_LOG_NORMAL("bug: no unit associated with SCSI device at " @@ -549,35 +547,38 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags, } /** - * zfcp_scsi_eh_bus_reset_handler - reset bus (reopen adapter) + * zfcp_scsi_eh_host_reset_handler - handler for host and bus reset + * + * If ERP is already running it will be stopped. */ -int -zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *scpnt) +int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) { - struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata; - struct zfcp_adapter *adapter = unit->port->adapter; - - ZFCP_LOG_NORMAL("bus reset because of problems with " - "unit 0x%016Lx\n", unit->fcp_lun); - zfcp_erp_adapter_reopen(adapter, 0); - zfcp_erp_wait(adapter); - - return SUCCESS; -} + struct zfcp_unit *unit; + struct zfcp_adapter *adapter; + unsigned long flags; -/** - * zfcp_scsi_eh_host_reset_handler - reset host (reopen adapter) - */ -int -zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) -{ - struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata; - struct zfcp_adapter *adapter = unit->port->adapter; + unit = (struct zfcp_unit*) scpnt->device->hostdata; + adapter = unit->port->adapter; - ZFCP_LOG_NORMAL("host reset because of problems with " + ZFCP_LOG_NORMAL("host/bus reset because of problems with " "unit 0x%016Lx\n", unit->fcp_lun); - zfcp_erp_adapter_reopen(adapter, 0); - zfcp_erp_wait(adapter); + + write_lock_irqsave(&adapter->erp_lock, flags); + if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING, + &adapter->status)) { + zfcp_erp_modify_adapter_status(adapter, + ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN, + ZFCP_CLEAR); + zfcp_erp_action_dismiss_adapter(adapter); + write_unlock_irqrestore(&adapter->erp_lock, flags); + zfcp_fsf_req_dismiss_all(adapter); + adapter->fsf_req_seq_no = 0; + zfcp_erp_adapter_reopen(adapter, 0); + } else { + write_unlock_irqrestore(&adapter->erp_lock, flags); + zfcp_erp_adapter_reopen(adapter, 0); + zfcp_erp_wait(adapter); + } return SUCCESS; } diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 5e8afc87698..2d20caf377f 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -390,7 +390,8 @@ static struct ata_port_info piix_port_info[] = { /* ich5_sata */ { .sht = &piix_sht, - .host_flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR, + .host_flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR | + PIIX_FLAG_IGNORE_PCS, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ .udma_mask = 0x7f, /* udma0-6 */ @@ -467,6 +468,11 @@ MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, piix_pci_tbl); MODULE_VERSION(DRV_VERSION); +static int force_pcs = 0; +module_param(force_pcs, int, 0444); +MODULE_PARM_DESC(force_pcs, "force honoring or ignoring PCS to work around " + "device mis-detection (0=default, 1=ignore PCS, 2=honor PCS)"); + /** * piix_pata_cbl_detect - Probe host controller cable detect info * @ap: Port for which cable detect info is desired @@ -531,27 +537,25 @@ static void piix_pata_error_handler(struct ata_port *ap) } /** - * piix_sata_prereset - prereset for SATA host controller + * piix_sata_present_mask - determine present mask for SATA host controller * @ap: Target port * - * Reads and configures SATA PCI device's PCI config register - * Port Configuration and Status (PCS) to determine port and - * device availability. Return -ENODEV to skip reset if no - * device is present. + * Reads SATA PCI device's PCI config register Port Configuration + * and Status (PCS) to determine port and device availability. * * LOCKING: * None (inherited from caller). * * RETURNS: - * 0 if device is present, -ENODEV otherwise. + * determined present_mask */ -static int piix_sata_prereset(struct ata_port *ap) +static unsigned int piix_sata_present_mask(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host_set->dev); struct piix_host_priv *hpriv = ap->host_set->private_data; const unsigned int *map = hpriv->map; int base = 2 * ap->hard_port_no; - unsigned int present = 0; + unsigned int present_mask = 0; int port, i; u16 pcs; @@ -564,24 +568,52 @@ static int piix_sata_prereset(struct ata_port *ap) continue; if ((ap->flags & PIIX_FLAG_IGNORE_PCS) || (pcs & 1 << (hpriv->map_db->present_shift + port))) - present = 1; + present_mask |= 1 << i; } - DPRINTK("ata%u: LEAVE, pcs=0x%x present=0x%x\n", - ap->id, pcs, present); + DPRINTK("ata%u: LEAVE, pcs=0x%x present_mask=0x%x\n", + ap->id, pcs, present_mask); - if (!present) { - ata_port_printk(ap, KERN_INFO, "SATA port has no device.\n"); - ap->eh_context.i.action &= ~ATA_EH_RESET_MASK; - return 0; + return present_mask; +} + +/** + * piix_sata_softreset - reset SATA host port via ATA SRST + * @ap: port to reset + * @classes: resulting classes of attached devices + * + * Reset SATA host port via ATA SRST. On controllers with + * reliable PCS present bits, the bits are used to determine + * device presence. + * + * LOCKING: + * Kernel thread context (may sleep) + * + * RETURNS: + * 0 on success, -errno otherwise. + */ +static int piix_sata_softreset(struct ata_port *ap, unsigned int *classes) +{ + unsigned int present_mask; + int i, rc; + + present_mask = piix_sata_present_mask(ap); + + rc = ata_std_softreset(ap, classes); + if (rc) + return rc; + + for (i = 0; i < ATA_MAX_DEVICES; i++) { + if (!(present_mask & (1 << i))) + classes[i] = ATA_DEV_NONE; } - return ata_std_prereset(ap); + return 0; } static void piix_sata_error_handler(struct ata_port *ap) { - ata_bmdma_drive_eh(ap, piix_sata_prereset, ata_std_softreset, NULL, + ata_bmdma_drive_eh(ap, ata_std_prereset, piix_sata_softreset, NULL, ata_std_postreset); } @@ -785,6 +817,7 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev) } static void __devinit piix_init_pcs(struct pci_dev *pdev, + struct ata_port_info *pinfo, const struct piix_map_db *map_db) { u16 pcs, new_pcs; @@ -798,6 +831,18 @@ static void __devinit piix_init_pcs(struct pci_dev *pdev, pci_write_config_word(pdev, ICH5_PCS, new_pcs); msleep(150); } + + if (force_pcs == 1) { + dev_printk(KERN_INFO, &pdev->dev, + "force ignoring PCS (0x%x)\n", new_pcs); + pinfo[0].host_flags |= PIIX_FLAG_IGNORE_PCS; + pinfo[1].host_flags |= PIIX_FLAG_IGNORE_PCS; + } else if (force_pcs == 2) { + dev_printk(KERN_INFO, &pdev->dev, + "force honoring PCS (0x%x)\n", new_pcs); + pinfo[0].host_flags &= ~PIIX_FLAG_IGNORE_PCS; + pinfo[1].host_flags &= ~PIIX_FLAG_IGNORE_PCS; + } } static void __devinit piix_init_sata_map(struct pci_dev *pdev, @@ -906,7 +951,8 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (host_flags & ATA_FLAG_SATA) { piix_init_sata_map(pdev, port_info, piix_map_db_table[ent->driver_data]); - piix_init_pcs(pdev, piix_map_db_table[ent->driver_data]); + piix_init_pcs(pdev, port_info, + piix_map_db_table[ent->driver_data]); } /* On ICH5, some BIOSen disable the interrupt using the diff --git a/drivers/scsi/esp.c b/drivers/scsi/esp.c index 98bd22714d0..5630868c1b2 100644 --- a/drivers/scsi/esp.c +++ b/drivers/scsi/esp.c @@ -1146,7 +1146,7 @@ static struct sbus_dev sun4_esp_dev; static int __init esp_sun4_probe(struct scsi_host_template *tpnt) { if (sun4_esp_physaddr) { - memset(&sun4_esp_dev, 0, sizeof(esp_dev)); + memset(&sun4_esp_dev, 0, sizeof(sun4_esp_dev)); sun4_esp_dev.reg_addrs[0].phys_addr = sun4_esp_physaddr; sun4_esp_dev.irqs[0] = 4; sun4_esp_dev.resource[0].start = sun4_esp_physaddr; @@ -1162,6 +1162,7 @@ static int __init esp_sun4_probe(struct scsi_host_template *tpnt) static int __devexit esp_sun4_remove(void) { + struct of_device *dev = &sun4_esp_dev.ofdev; struct esp *esp = dev_get_drvdata(&dev->dev); return esp_remove_common(esp); diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index ab2f8b26790..bcb3444f1dc 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -45,10 +45,6 @@ static char driver_name[] = "hptiop"; static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver"; static const char driver_ver[] = "v1.0 (060426)"; -static DEFINE_SPINLOCK(hptiop_hba_list_lock); -static LIST_HEAD(hptiop_hba_list); -static int hptiop_cdev_major = -1; - static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag); static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag); static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); @@ -577,7 +573,7 @@ static int hptiop_reset_hba(struct hptiop_hba *hba) if (atomic_xchg(&hba->resetting, 1) == 0) { atomic_inc(&hba->reset_count); writel(IOPMU_INBOUND_MSG0_RESET, - &hba->iop->outbound_msgaddr0); + &hba->iop->inbound_msgaddr0); hptiop_pci_posting_flush(hba->iop); } @@ -620,532 +616,11 @@ static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, return queue_depth; } -struct hptiop_getinfo { - char __user *buffer; - loff_t buflength; - loff_t bufoffset; - loff_t buffillen; - loff_t filpos; -}; - -static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo, - char *data, int datalen) -{ - if (pinfo->filpos < pinfo->bufoffset) { - if (pinfo->filpos + datalen <= pinfo->bufoffset) { - pinfo->filpos += datalen; - return; - } else { - data += (pinfo->bufoffset - pinfo->filpos); - datalen -= (pinfo->bufoffset - pinfo->filpos); - pinfo->filpos = pinfo->bufoffset; - } - } - - pinfo->filpos += datalen; - if (pinfo->buffillen == pinfo->buflength) - return; - - if (pinfo->buflength - pinfo->buffillen < datalen) - datalen = pinfo->buflength - pinfo->buffillen; - - if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen)) - return; - - pinfo->buffillen += datalen; -} - -static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...) -{ - va_list args; - char buf[128]; - int len; - - va_start(args, fmt); - len = vsnprintf(buf, sizeof(buf), fmt, args); - va_end(args); - hptiop_copy_mem_info(pinfo, buf, len); - return len; -} - -static void hptiop_ioctl_done(struct hpt_ioctl_k *arg) -{ - arg->done = NULL; - wake_up(&arg->hba->ioctl_wq); -} - -static void hptiop_do_ioctl(struct hpt_ioctl_k *arg) -{ - struct hptiop_hba *hba = arg->hba; - u32 val; - struct hpt_iop_request_ioctl_command __iomem *req; - int ioctl_retry = 0; - - dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no); - - /* - * check (in + out) buff size from application. - * outbuf must be dword aligned. - */ - if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size > - hba->max_request_size - - sizeof(struct hpt_iop_request_header) - - 4 * sizeof(u32)) { - dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n", - hba->host->host_no, - arg->inbuf_size, arg->outbuf_size); - arg->result = HPT_IOCTL_RESULT_FAILED; - return; - } - -retry: - spin_lock_irq(hba->host->host_lock); - - val = readl(&hba->iop->inbound_queue); - if (val == IOPMU_QUEUE_EMPTY) { - spin_unlock_irq(hba->host->host_lock); - dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no); - arg->result = -1; - return; - } - - req = (struct hpt_iop_request_ioctl_command __iomem *) - ((unsigned long)hba->iop + val); - - writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code), - &req->ioctl_code); - writel(arg->inbuf_size, &req->inbuf_size); - writel(arg->outbuf_size, &req->outbuf_size); - - /* - * use the buffer on the IOP local memory first, then copy it - * back to host. - * the caller's request buffer shoudl be little-endian. - */ - if (arg->inbuf_size) - memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size); - - /* correct the controller ID for IOP */ - if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO || - arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 || - arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO) - && arg->inbuf_size >= sizeof(u32)) - writel(0, req->buf); - - writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type); - writel(0, &req->header.flags); - writel(offsetof(struct hpt_iop_request_ioctl_command, buf) - + arg->inbuf_size, &req->header.size); - writel((u32)(unsigned long)arg, &req->header.context); - writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0, - &req->header.context_hi32); - writel(IOP_RESULT_PENDING, &req->header.result); - - arg->result = HPT_IOCTL_RESULT_FAILED; - arg->done = hptiop_ioctl_done; - - writel(val, &hba->iop->inbound_queue); - hptiop_pci_posting_flush(hba->iop); - - spin_unlock_irq(hba->host->host_lock); - - wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ); - - if (arg->done != NULL) { - hptiop_reset_hba(hba); - if (ioctl_retry++ < 3) - goto retry; - } - - dprintk("hpt_iop_ioctl %x result %d\n", - arg->ioctl_code, arg->result); -} - -static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf, - u32 insize, void *outbuf, u32 outsize) -{ - struct hpt_ioctl_k arg; - arg.hba = hba; - arg.ioctl_code = code; - arg.inbuf = inbuf; - arg.outbuf = outbuf; - arg.inbuf_size = insize; - arg.outbuf_size = outsize; - arg.bytes_returned = NULL; - hptiop_do_ioctl(&arg); - return arg.result; -} - -static inline int hpt_id_valid(__le32 id) -{ - return id != 0 && id != cpu_to_le32(0xffffffff); -} - -static int hptiop_get_controller_info(struct hptiop_hba *hba, - struct hpt_controller_info *pinfo) -{ - int id = 0; - - return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO, - &id, sizeof(int), pinfo, sizeof(*pinfo)); -} - - -static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus, - struct hpt_channel_info *pinfo) -{ - u32 ids[2]; - - ids[0] = 0; - ids[1] = bus; - return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO, - ids, sizeof(ids), pinfo, sizeof(*pinfo)); - -} - -static int hptiop_get_logical_devices(struct hptiop_hba *hba, - __le32 *pids, int maxcount) -{ - int i; - u32 count = maxcount - 1; - - if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES, - &count, sizeof(u32), - pids, sizeof(u32) * maxcount)) - return -1; - - maxcount = le32_to_cpu(pids[0]); - for (i = 0; i < maxcount; i++) - pids[i] = pids[i+1]; - - return maxcount; -} - -static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id, - struct hpt_logical_device_info_v3 *pinfo) -{ - return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3, - &id, sizeof(u32), - pinfo, sizeof(*pinfo)); -} - -static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo) -{ - static char s[64]; - u32 flags = le32_to_cpu(devinfo->u.array.flags); - u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress); - u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress); - - if (flags & ARRAY_FLAG_DISABLED) - return "Disabled"; - else if (flags & ARRAY_FLAG_TRANSFORMING) - sprintf(s, "Expanding/Migrating %d.%d%%%s%s", - trans_prog / 100, - trans_prog % 100, - (flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))? - ", Critical" : "", - ((flags & ARRAY_FLAG_NEEDINITIALIZING) && - !(flags & ARRAY_FLAG_REBUILDING) && - !(flags & ARRAY_FLAG_INITIALIZING))? - ", Unintialized" : ""); - else if ((flags & ARRAY_FLAG_BROKEN) && - devinfo->u.array.array_type != AT_RAID6) - return "Critical"; - else if (flags & ARRAY_FLAG_REBUILDING) - sprintf(s, - (flags & ARRAY_FLAG_NEEDINITIALIZING)? - "%sBackground initializing %d.%d%%" : - "%sRebuilding %d.%d%%", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - reb_prog / 100, - reb_prog % 100); - else if (flags & ARRAY_FLAG_VERIFYING) - sprintf(s, "%sVerifying %d.%d%%", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - reb_prog / 100, - reb_prog % 100); - else if (flags & ARRAY_FLAG_INITIALIZING) - sprintf(s, "%sForground initializing %d.%d%%", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - reb_prog / 100, - reb_prog % 100); - else if (flags & ARRAY_FLAG_NEEDTRANSFORM) - sprintf(s,"%s%s%s", "Need Expanding/Migrating", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", - ((flags & ARRAY_FLAG_NEEDINITIALIZING) && - !(flags & ARRAY_FLAG_REBUILDING) && - !(flags & ARRAY_FLAG_INITIALIZING))? - ", Unintialized" : ""); - else if (flags & ARRAY_FLAG_NEEDINITIALIZING && - !(flags & ARRAY_FLAG_REBUILDING) && - !(flags & ARRAY_FLAG_INITIALIZING)) - sprintf(s,"%sUninitialized", - (flags & ARRAY_FLAG_BROKEN)? "Critical, " : ""); - else if ((flags & ARRAY_FLAG_NEEDBUILDING) || - (flags & ARRAY_FLAG_BROKEN)) - return "Critical"; - else - return "Normal"; - return s; -} - -static void hptiop_dump_devinfo(struct hptiop_hba *hba, - struct hptiop_getinfo *pinfo, __le32 id, int indent) -{ - struct hpt_logical_device_info_v3 devinfo; - int i; - u64 capacity; - - for (i = 0; i < indent; i++) - hptiop_copy_info(pinfo, "\t"); - - if (hptiop_get_device_info_v3(hba, id, &devinfo)) { - hptiop_copy_info(pinfo, "unknown\n"); - return; - } - - switch (devinfo.type) { - - case LDT_DEVICE: { - struct hd_driveid *driveid; - u32 flags = le32_to_cpu(devinfo.u.device.flags); - - driveid = (struct hd_driveid *)devinfo.u.device.ident; - /* model[] is 40 chars long, but we just want 20 chars here */ - driveid->model[20] = 0; - - if (indent) - if (flags & DEVICE_FLAG_DISABLED) - hptiop_copy_info(pinfo,"Missing\n"); - else - hptiop_copy_info(pinfo, "CH%d %s\n", - devinfo.u.device.path_id + 1, - driveid->model); - else { - capacity = le64_to_cpu(devinfo.capacity) * 512; - do_div(capacity, 1000000); - hptiop_copy_info(pinfo, - "CH%d %s, %lluMB, %s %s%s%s%s\n", - devinfo.u.device.path_id + 1, - driveid->model, - capacity, - (flags & DEVICE_FLAG_DISABLED)? - "Disabled" : "Normal", - devinfo.u.device.read_ahead_enabled? - "[RA]" : "", - devinfo.u.device.write_cache_enabled? - "[WC]" : "", - devinfo.u.device.TCQ_enabled? - "[TCQ]" : "", - devinfo.u.device.NCQ_enabled? - "[NCQ]" : "" - ); - } - break; - } - - case LDT_ARRAY: - if (devinfo.target_id != INVALID_TARGET_ID) - hptiop_copy_info(pinfo, "[DISK %d_%d] ", - devinfo.vbus_id, devinfo.target_id); - - capacity = le64_to_cpu(devinfo.capacity) * 512; - do_div(capacity, 1000000); - hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n", - devinfo.u.array.name, - devinfo.u.array.array_type==AT_RAID0? "RAID0" : - devinfo.u.array.array_type==AT_RAID1? "RAID1" : - devinfo.u.array.array_type==AT_RAID5? "RAID5" : - devinfo.u.array.array_type==AT_RAID6? "RAID6" : - devinfo.u.array.array_type==AT_JBOD? "JBOD" : - "unknown", - capacity, - get_array_status(&devinfo)); - for (i = 0; i < devinfo.u.array.ndisk; i++) { - if (hpt_id_valid(devinfo.u.array.members[i])) { - if (cpu_to_le16(1<<i) & - devinfo.u.array.critical_members) - hptiop_copy_info(pinfo, "\t*"); - hptiop_dump_devinfo(hba, pinfo, - devinfo.u.array.members[i], indent+1); - } - else - hptiop_copy_info(pinfo, "\tMissing\n"); - } - if (id == devinfo.u.array.transform_source) { - hptiop_copy_info(pinfo, "\tExpanding/Migrating to:\n"); - hptiop_dump_devinfo(hba, pinfo, - devinfo.u.array.transform_target, indent+1); - } - break; - } -} - static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf) { return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); } -static ssize_t hptiop_cdev_read(struct file *filp, char __user *buf, - size_t count, loff_t *ppos) -{ - struct hptiop_hba *hba = filp->private_data; - struct hptiop_getinfo info; - int i, j, ndev; - struct hpt_controller_info con_info; - struct hpt_channel_info chan_info; - __le32 ids[32]; - - info.buffer = buf; - info.buflength = count; - info.bufoffset = ppos ? *ppos : 0; - info.filpos = 0; - info.buffillen = 0; - - if (hptiop_get_controller_info(hba, &con_info)) - return -EIO; - - for (i = 0; i < con_info.num_buses; i++) { - if (hptiop_get_channel_info(hba, i, &chan_info) == 0) { - if (hpt_id_valid(chan_info.devices[0])) - hptiop_dump_devinfo(hba, &info, - chan_info.devices[0], 0); - if (hpt_id_valid(chan_info.devices[1])) - hptiop_dump_devinfo(hba, &info, - chan_info.devices[1], 0); - } - } - - ndev = hptiop_get_logical_devices(hba, ids, - sizeof(ids) / sizeof(ids[0])); - - /* - * if hptiop_get_logical_devices fails, ndev==-1 and it just - * output nothing here - */ - for (j = 0; j < ndev; j++) - hptiop_dump_devinfo(hba, &info, ids[j], 0); - - if (ppos) - *ppos += info.buffillen; - - return info.buffillen; -} - -static int hptiop_cdev_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct hptiop_hba *hba = file->private_data; - struct hpt_ioctl_u ioctl_u; - struct hpt_ioctl_k ioctl_k; - u32 bytes_returned; - int err = -EINVAL; - - if (copy_from_user(&ioctl_u, - (void __user *)arg, sizeof(struct hpt_ioctl_u))) - return -EINVAL; - - if (ioctl_u.magic != HPT_IOCTL_MAGIC) - return -EINVAL; - - ioctl_k.ioctl_code = ioctl_u.ioctl_code; - ioctl_k.inbuf = NULL; - ioctl_k.inbuf_size = ioctl_u.inbuf_size; - ioctl_k.outbuf = NULL; - ioctl_k.outbuf_size = ioctl_u.outbuf_size; - ioctl_k.hba = hba; - ioctl_k.bytes_returned = &bytes_returned; - - /* verify user buffer */ - if ((ioctl_k.inbuf_size && !access_ok(VERIFY_READ, - ioctl_u.inbuf, ioctl_k.inbuf_size)) || - (ioctl_k.outbuf_size && !access_ok(VERIFY_WRITE, - ioctl_u.outbuf, ioctl_k.outbuf_size)) || - (ioctl_u.bytes_returned && !access_ok(VERIFY_WRITE, - ioctl_u.bytes_returned, sizeof(u32))) || - ioctl_k.inbuf_size + ioctl_k.outbuf_size > 0x10000) { - - dprintk("scsi%d: got bad user address\n", hba->host->host_no); - return -EINVAL; - } - - /* map buffer to kernel. */ - if (ioctl_k.inbuf_size) { - ioctl_k.inbuf = kmalloc(ioctl_k.inbuf_size, GFP_KERNEL); - if (!ioctl_k.inbuf) { - dprintk("scsi%d: fail to alloc inbuf\n", - hba->host->host_no); - err = -ENOMEM; - goto err_exit; - } - - if (copy_from_user(ioctl_k.inbuf, - ioctl_u.inbuf, ioctl_k.inbuf_size)) { - goto err_exit; - } - } - - if (ioctl_k.outbuf_size) { - ioctl_k.outbuf = kmalloc(ioctl_k.outbuf_size, GFP_KERNEL); - if (!ioctl_k.outbuf) { - dprintk("scsi%d: fail to alloc outbuf\n", - hba->host->host_no); - err = -ENOMEM; - goto err_exit; - } - } - - hptiop_do_ioctl(&ioctl_k); - - if (ioctl_k.result == HPT_IOCTL_RESULT_OK) { - if (ioctl_k.outbuf_size && - copy_to_user(ioctl_u.outbuf, - ioctl_k.outbuf, ioctl_k.outbuf_size)) - goto err_exit; - - if (ioctl_u.bytes_returned && - copy_to_user(ioctl_u.bytes_returned, - &bytes_returned, sizeof(u32))) - goto err_exit; - - err = 0; - } - -err_exit: - kfree(ioctl_k.inbuf); - kfree(ioctl_k.outbuf); - - return err; -} - -static int hptiop_cdev_open(struct inode *inode, struct file *file) -{ - struct hptiop_hba *hba; - unsigned i = 0, minor = iminor(inode); - int ret = -ENODEV; - - spin_lock(&hptiop_hba_list_lock); - list_for_each_entry(hba, &hptiop_hba_list, link) { - if (i == minor) { - file->private_data = hba; - ret = 0; - goto out; - } - i++; - } - -out: - spin_unlock(&hptiop_hba_list_lock); - return ret; -} - -static struct file_operations hptiop_cdev_fops = { - .owner = THIS_MODULE, - .read = hptiop_cdev_read, - .ioctl = hptiop_cdev_ioctl, - .open = hptiop_cdev_open, -}; - static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf) { struct Scsi_Host *host = class_to_shost(class_dev); @@ -1296,19 +771,13 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev, goto unmap_pci_bar; } - if (scsi_add_host(host, &pcidev->dev)) { - printk(KERN_ERR "scsi%d: scsi_add_host failed\n", - hba->host->host_no); - goto unmap_pci_bar; - } - pci_set_drvdata(pcidev, host); if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, driver_name, hba)) { printk(KERN_ERR "scsi%d: request irq %d failed\n", hba->host->host_no, pcidev->irq); - goto remove_scsi_host; + goto unmap_pci_bar; } /* Allocate request mem */ @@ -1355,9 +824,12 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev, if (hptiop_initialize_iop(hba)) goto free_request_mem; - spin_lock(&hptiop_hba_list_lock); - list_add_tail(&hba->link, &hptiop_hba_list); - spin_unlock(&hptiop_hba_list_lock); + if (scsi_add_host(host, &pcidev->dev)) { + printk(KERN_ERR "scsi%d: scsi_add_host failed\n", + hba->host->host_no); + goto free_request_mem; + } + scsi_scan_host(host); @@ -1372,9 +844,6 @@ free_request_mem: free_request_irq: free_irq(hba->pcidev->irq, hba); -remove_scsi_host: - scsi_remove_host(host); - unmap_pci_bar: iounmap(hba->iop); @@ -1422,10 +891,6 @@ static void hptiop_remove(struct pci_dev *pcidev) scsi_remove_host(host); - spin_lock(&hptiop_hba_list_lock); - list_del_init(&hba->link); - spin_unlock(&hptiop_hba_list_lock); - hptiop_shutdown(pcidev); free_irq(hba->pcidev->irq, hba); @@ -1462,27 +927,12 @@ static struct pci_driver hptiop_pci_driver = { static int __init hptiop_module_init(void) { - int error; - printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); - - error = pci_register_driver(&hptiop_pci_driver); - if (error < 0) - return error; - - hptiop_cdev_major = register_chrdev(0, "hptiop", &hptiop_cdev_fops); - if (hptiop_cdev_major < 0) { - printk(KERN_WARNING "unable to register hptiop device.\n"); - return hptiop_cdev_major; - } - - return 0; + return pci_register_driver(&hptiop_pci_driver); } static void __exit hptiop_module_exit(void) { - dprintk("hptiop_module_exit\n"); - unregister_chrdev(hptiop_cdev_major, "hptiop"); pci_unregister_driver(&hptiop_pci_driver); } diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index f7b5d7372d2..94d1de55607 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -517,7 +517,7 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive) /* No more interrupts */ if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) printk (KERN_INFO "Packet command completed, %d bytes transferred\n", pc->actually_transferred); - local_irq_enable(); + local_irq_enable_in_hardirq(); if (status.b.check) rq->errors++; idescsi_end_request (drive, 1, 0); diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 848fb2aa4ca..058f094f945 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -43,13 +43,10 @@ #include "iscsi_tcp.h" -#define ISCSI_TCP_VERSION "1.0-595" - MODULE_AUTHOR("Dmitry Yusupov <dmitry_yus@yahoo.com>, " "Alex Aizman <itn780@yahoo.com>"); MODULE_DESCRIPTION("iSCSI/TCP data-path"); MODULE_LICENSE("GPL"); -MODULE_VERSION(ISCSI_TCP_VERSION); /* #define DEBUG_TCP */ #define DEBUG_ASSERT @@ -185,11 +182,19 @@ iscsi_hdr_extract(struct iscsi_tcp_conn *tcp_conn) * must be called with session lock */ static void -__iscsi_ctask_cleanup(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) +iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) { struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; + struct iscsi_r2t_info *r2t; struct scsi_cmnd *sc; + /* flush ctask's r2t queues */ + while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*))) { + __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t, + sizeof(void*)); + debug_scsi("iscsi_tcp_cleanup_ctask pending r2t dropped\n"); + } + sc = ctask->sc; if (unlikely(!sc)) return; @@ -374,6 +379,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) spin_unlock(&session->lock); return 0; } + rc = __kfifo_get(tcp_ctask->r2tpool.queue, (void*)&r2t, sizeof(void*)); BUG_ON(!rc); @@ -399,7 +405,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) tcp_ctask->exp_r2tsn = r2tsn + 1; tcp_ctask->xmstate |= XMSTATE_SOL_HDR; __kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*)); - __kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*)); + list_move_tail(&ctask->running, &conn->xmitqueue); scsi_queue_work(session->host, &conn->xmitwork); conn->r2t_pdus_cnt++; @@ -477,6 +483,8 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn) case ISCSI_OP_SCSI_DATA_IN: tcp_conn->in.ctask = session->cmds[itt]; rc = iscsi_data_rsp(conn, tcp_conn->in.ctask); + if (rc) + return rc; /* fall through */ case ISCSI_OP_SCSI_CMD_RSP: tcp_conn->in.ctask = session->cmds[itt]; @@ -484,7 +492,7 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn) goto copy_hdr; spin_lock(&session->lock); - __iscsi_ctask_cleanup(conn, tcp_conn->in.ctask); + iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask); rc = __iscsi_complete_pdu(conn, hdr, NULL, 0); spin_unlock(&session->lock); break; @@ -500,13 +508,28 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn) break; case ISCSI_OP_LOGIN_RSP: case ISCSI_OP_TEXT_RSP: - case ISCSI_OP_LOGOUT_RSP: - case ISCSI_OP_NOOP_IN: case ISCSI_OP_REJECT: case ISCSI_OP_ASYNC_EVENT: + /* + * It is possible that we could get a PDU with a buffer larger + * than 8K, but there are no targets that currently do this. + * For now we fail until we find a vendor that needs it + */ + if (DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH < + tcp_conn->in.datalen) { + printk(KERN_ERR "iscsi_tcp: received buffer of len %u " + "but conn buffer is only %u (opcode %0x)\n", + tcp_conn->in.datalen, + DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, opcode); + rc = ISCSI_ERR_PROTO; + break; + } + if (tcp_conn->in.datalen) goto copy_hdr; /* fall through */ + case ISCSI_OP_LOGOUT_RSP: + case ISCSI_OP_NOOP_IN: case ISCSI_OP_SCSI_TMFUNC_RSP: rc = iscsi_complete_pdu(conn, hdr, NULL, 0); break; @@ -523,7 +546,7 @@ copy_hdr: * skbs to complete the command then we have to copy the header * for later use */ - if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy < + if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <= (tcp_conn->in.datalen + tcp_conn->in.padding + (conn->datadgst_en ? 4 : 0))) { debug_tcp("Copying header for later use. in.copy %d in.datalen" @@ -614,9 +637,9 @@ iscsi_ctask_copy(struct iscsi_tcp_conn *tcp_conn, struct iscsi_cmd_task *ctask, * byte counters. **/ static inline int -iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn) +iscsi_tcp_copy(struct iscsi_conn *conn) { - void *buf = tcp_conn->data; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; int buf_size = tcp_conn->in.datalen; int buf_left = buf_size - tcp_conn->data_copied; int size = min(tcp_conn->in.copy, buf_left); @@ -627,7 +650,7 @@ iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn) BUG_ON(size <= 0); rc = skb_copy_bits(tcp_conn->in.skb, tcp_conn->in.offset, - (char*)buf + tcp_conn->data_copied, size); + (char*)conn->data + tcp_conn->data_copied, size); BUG_ON(rc); tcp_conn->in.offset += size; @@ -745,10 +768,11 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn) done: /* check for non-exceptional status */ if (tcp_conn->in.hdr->flags & ISCSI_FLAG_DATA_STATUS) { - debug_scsi("done [sc %lx res %d itt 0x%x]\n", - (long)sc, sc->result, ctask->itt); + debug_scsi("done [sc %lx res %d itt 0x%x flags 0x%x]\n", + (long)sc, sc->result, ctask->itt, + tcp_conn->in.hdr->flags); spin_lock(&conn->session->lock); - __iscsi_ctask_cleanup(conn, ctask); + iscsi_tcp_cleanup_ctask(conn, ctask); __iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0); spin_unlock(&conn->session->lock); } @@ -769,26 +793,25 @@ iscsi_data_recv(struct iscsi_conn *conn) break; case ISCSI_OP_SCSI_CMD_RSP: spin_lock(&conn->session->lock); - __iscsi_ctask_cleanup(conn, tcp_conn->in.ctask); + iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask); spin_unlock(&conn->session->lock); case ISCSI_OP_TEXT_RSP: case ISCSI_OP_LOGIN_RSP: - case ISCSI_OP_NOOP_IN: case ISCSI_OP_ASYNC_EVENT: case ISCSI_OP_REJECT: /* * Collect data segment to the connection's data * placeholder */ - if (iscsi_tcp_copy(tcp_conn)) { + if (iscsi_tcp_copy(conn)) { rc = -EAGAIN; goto exit; } - rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, tcp_conn->data, + rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, conn->data, tcp_conn->in.datalen); if (!rc && conn->datadgst_en && opcode != ISCSI_OP_LOGIN_RSP) - iscsi_recv_digest_update(tcp_conn, tcp_conn->data, + iscsi_recv_digest_update(tcp_conn, conn->data, tcp_conn->in.datalen); break; default: @@ -843,7 +866,7 @@ more: if (rc == -EAGAIN) goto nomore; else { - iscsi_conn_failure(conn, rc); + iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); return 0; } } @@ -897,7 +920,7 @@ more: if (rc) { if (rc == -EAGAIN) goto again; - iscsi_conn_failure(conn, rc); + iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); return 0; } tcp_conn->in.copy -= tcp_conn->in.padding; @@ -1028,9 +1051,8 @@ iscsi_conn_set_callbacks(struct iscsi_conn *conn) } static void -iscsi_conn_restore_callbacks(struct iscsi_conn *conn) +iscsi_conn_restore_callbacks(struct iscsi_tcp_conn *tcp_conn) { - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; struct sock *sk = tcp_conn->sock->sk; /* restore socket callbacks, see also: iscsi_conn_set_callbacks() */ @@ -1308,7 +1330,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask) ctask->imm_count - ctask->unsol_count; - debug_scsi("cmd [itt %x total %d imm %d imm_data %d " + debug_scsi("cmd [itt 0x%x total %d imm %d imm_data %d " "r2t_data %d]\n", ctask->itt, ctask->total_length, ctask->imm_count, ctask->unsol_count, tcp_ctask->r2t_data_count); @@ -1636,7 +1658,7 @@ handle_xmstate_sol_data(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) } solicit_again: /* - * send Data-Out whitnin this R2T sequence. + * send Data-Out within this R2T sequence. */ if (!r2t->data_count) goto data_out_done; @@ -1731,7 +1753,7 @@ handle_xmstate_w_pad(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; struct iscsi_data_task *dtask = tcp_ctask->dtask; - int sent, rc; + int sent = 0, rc; tcp_ctask->xmstate &= ~XMSTATE_W_PAD; iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad, @@ -1900,27 +1922,32 @@ iscsi_tcp_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx) tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER; /* initial operational parameters */ tcp_conn->hdr_size = sizeof(struct iscsi_hdr); - tcp_conn->data_size = DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH; - - /* allocate initial PDU receive place holder */ - if (tcp_conn->data_size <= PAGE_SIZE) - tcp_conn->data = kmalloc(tcp_conn->data_size, GFP_KERNEL); - else - tcp_conn->data = (void*)__get_free_pages(GFP_KERNEL, - get_order(tcp_conn->data_size)); - if (!tcp_conn->data) - goto max_recv_dlenght_alloc_fail; return cls_conn; -max_recv_dlenght_alloc_fail: - kfree(tcp_conn); tcp_conn_alloc_fail: iscsi_conn_teardown(cls_conn); return NULL; } static void +iscsi_tcp_release_conn(struct iscsi_conn *conn) +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + + if (!tcp_conn->sock) + return; + + sock_hold(tcp_conn->sock->sk); + iscsi_conn_restore_callbacks(tcp_conn); + sock_put(tcp_conn->sock->sk); + + sock_release(tcp_conn->sock); + tcp_conn->sock = NULL; + conn->recv_lock = NULL; +} + +static void iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) { struct iscsi_conn *conn = cls_conn->dd_data; @@ -1930,6 +1957,7 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) if (conn->hdrdgst_en || conn->datadgst_en) digest = 1; + iscsi_tcp_release_conn(conn); iscsi_conn_teardown(cls_conn); /* now free tcp_conn */ @@ -1944,15 +1972,18 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) crypto_free_tfm(tcp_conn->data_rx_tfm); } - /* free conn->data, size = MaxRecvDataSegmentLength */ - if (tcp_conn->data_size <= PAGE_SIZE) - kfree(tcp_conn->data); - else - free_pages((unsigned long)tcp_conn->data, - get_order(tcp_conn->data_size)); kfree(tcp_conn); } +static void +iscsi_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + + iscsi_conn_stop(cls_conn, flag); + iscsi_tcp_release_conn(conn); +} + static int iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, struct iscsi_cls_conn *cls_conn, uint64_t transport_eph, @@ -2001,52 +2032,6 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, return 0; } -static void -iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) -{ - struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; - struct iscsi_r2t_info *r2t; - - /* flush ctask's r2t queues */ - while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*))) - __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t, - sizeof(void*)); - - __iscsi_ctask_cleanup(conn, ctask); -} - -static void -iscsi_tcp_suspend_conn_rx(struct iscsi_conn *conn) -{ - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct sock *sk; - - if (!tcp_conn->sock) - return; - - sk = tcp_conn->sock->sk; - write_lock_bh(&sk->sk_callback_lock); - set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); - write_unlock_bh(&sk->sk_callback_lock); -} - -static void -iscsi_tcp_terminate_conn(struct iscsi_conn *conn) -{ - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - - if (!tcp_conn->sock) - return; - - sock_hold(tcp_conn->sock->sk); - iscsi_conn_restore_callbacks(conn); - sock_put(tcp_conn->sock->sk); - - sock_release(tcp_conn->sock); - tcp_conn->sock = NULL; - conn->recv_lock = NULL; -} - /* called with host lock */ static void iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask, @@ -2057,6 +2042,7 @@ iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask, iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr, sizeof(struct iscsi_hdr)); tcp_mtask->xmstate = XMSTATE_IMM_HDR; + tcp_mtask->sent = 0; if (mtask->data_count) iscsi_buf_init_iov(&tcp_mtask->sendbuf, (char*)mtask->data, @@ -2138,39 +2124,6 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, int value; switch(param) { - case ISCSI_PARAM_MAX_RECV_DLENGTH: { - char *saveptr = tcp_conn->data; - gfp_t flags = GFP_KERNEL; - - sscanf(buf, "%d", &value); - if (tcp_conn->data_size >= value) { - iscsi_set_param(cls_conn, param, buf, buflen); - break; - } - - spin_lock_bh(&session->lock); - if (conn->stop_stage == STOP_CONN_RECOVER) - flags = GFP_ATOMIC; - spin_unlock_bh(&session->lock); - - if (value <= PAGE_SIZE) - tcp_conn->data = kmalloc(value, flags); - else - tcp_conn->data = (void*)__get_free_pages(flags, - get_order(value)); - if (tcp_conn->data == NULL) { - tcp_conn->data = saveptr; - return -ENOMEM; - } - if (tcp_conn->data_size <= PAGE_SIZE) - kfree(saveptr); - else - free_pages((unsigned long)saveptr, - get_order(tcp_conn->data_size)); - iscsi_set_param(cls_conn, param, buf, buflen); - tcp_conn->data_size = value; - break; - } case ISCSI_PARAM_HDRDGST_EN: iscsi_set_param(cls_conn, param, buf, buflen); tcp_conn->hdr_size = sizeof(struct iscsi_hdr); @@ -2361,8 +2314,7 @@ static void iscsi_tcp_session_destroy(struct iscsi_cls_session *cls_session) } static struct scsi_host_template iscsi_sht = { - .name = "iSCSI Initiator over TCP/IP, v" - ISCSI_TCP_VERSION, + .name = "iSCSI Initiator over TCP/IP", .queuecommand = iscsi_queuecommand, .change_queue_depth = iscsi_change_queue_depth, .can_queue = ISCSI_XMIT_CMDS_MAX - 1, @@ -2414,10 +2366,7 @@ static struct iscsi_transport iscsi_tcp_transport = { .get_conn_param = iscsi_tcp_conn_get_param, .get_session_param = iscsi_session_get_param, .start_conn = iscsi_conn_start, - .stop_conn = iscsi_conn_stop, - /* these are called as part of conn recovery */ - .suspend_conn_recv = iscsi_tcp_suspend_conn_rx, - .terminate_conn = iscsi_tcp_terminate_conn, + .stop_conn = iscsi_tcp_conn_stop, /* IO */ .send_pdu = iscsi_conn_send_pdu, .get_stats = iscsi_conn_get_stats, diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h index 808302832e6..6a4ee704e46 100644 --- a/drivers/scsi/iscsi_tcp.h +++ b/drivers/scsi/iscsi_tcp.h @@ -78,8 +78,6 @@ struct iscsi_tcp_conn { char hdrext[4*sizeof(__u16) + sizeof(__u32)]; int data_copied; - char *data; /* data placeholder */ - int data_size; /* actual recv_dlength */ int stop_stage; /* conn_stop() flag: * * stop to recover, * * stop to terminate */ diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 16fc2dd8f2f..73dd6c8deed 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2746,7 +2746,7 @@ int sata_std_hardreset(struct ata_port *ap, unsigned int *class) if ((rc = sata_scr_read(ap, SCR_CONTROL, &scontrol))) return rc; - scontrol = (scontrol & 0x0f0) | 0x302; + scontrol = (scontrol & 0x0f0) | 0x304; if ((rc = sata_scr_write(ap, SCR_CONTROL, scontrol))) return rc; diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 7e6e031cc41..5884cd26d53 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -189,6 +189,7 @@ static void iscsi_complete_command(struct iscsi_session *session, { struct scsi_cmnd *sc = ctask->sc; + ctask->state = ISCSI_TASK_COMPLETED; ctask->sc = NULL; list_del_init(&ctask->running); __kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*)); @@ -275,6 +276,25 @@ out: return rc; } +static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) +{ + struct iscsi_tm_rsp *tmf = (struct iscsi_tm_rsp *)hdr; + + conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; + conn->tmfrsp_pdus_cnt++; + + if (conn->tmabort_state != TMABORT_INITIAL) + return; + + if (tmf->response == ISCSI_TMF_RSP_COMPLETE) + conn->tmabort_state = TMABORT_SUCCESS; + else if (tmf->response == ISCSI_TMF_RSP_NO_TASK) + conn->tmabort_state = TMABORT_NOT_FOUND; + else + conn->tmabort_state = TMABORT_FAILED; + wake_up(&conn->ehwait); +} + /** * __iscsi_complete_pdu - complete pdu * @conn: iscsi conn @@ -340,6 +360,10 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, switch(opcode) { case ISCSI_OP_LOGOUT_RSP: + if (datalen) { + rc = ISCSI_ERR_PROTO; + break; + } conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; /* fall through */ case ISCSI_OP_LOGIN_RSP: @@ -348,7 +372,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, * login related PDU's exp_statsn is handled in * userspace */ - rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen); + if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) + rc = ISCSI_ERR_CONN_FAILED; list_del(&mtask->running); if (conn->login_mtask != mtask) __kfifo_put(session->mgmtpool.queue, @@ -360,25 +385,17 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, break; } - conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; - conn->tmfrsp_pdus_cnt++; - if (conn->tmabort_state == TMABORT_INITIAL) { - conn->tmabort_state = - ((struct iscsi_tm_rsp *)hdr)-> - response == ISCSI_TMF_RSP_COMPLETE ? - TMABORT_SUCCESS:TMABORT_FAILED; - /* unblock eh_abort() */ - wake_up(&conn->ehwait); - } + iscsi_tmf_rsp(conn, hdr); break; case ISCSI_OP_NOOP_IN: - if (hdr->ttt != ISCSI_RESERVED_TAG) { + if (hdr->ttt != ISCSI_RESERVED_TAG || datalen) { rc = ISCSI_ERR_PROTO; break; } conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; - rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen); + if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) + rc = ISCSI_ERR_CONN_FAILED; list_del(&mtask->running); if (conn->login_mtask != mtask) __kfifo_put(session->mgmtpool.queue, @@ -391,14 +408,21 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, } else if (itt == ISCSI_RESERVED_TAG) { switch(opcode) { case ISCSI_OP_NOOP_IN: - if (!datalen) { - rc = iscsi_check_assign_cmdsn(session, - (struct iscsi_nopin*)hdr); - if (!rc && hdr->ttt != ISCSI_RESERVED_TAG) - rc = iscsi_recv_pdu(conn->cls_conn, - hdr, NULL, 0); - } else + if (datalen) { rc = ISCSI_ERR_PROTO; + break; + } + + rc = iscsi_check_assign_cmdsn(session, + (struct iscsi_nopin*)hdr); + if (rc) + break; + + if (hdr->ttt == ISCSI_RESERVED_TAG) + break; + + if (iscsi_recv_pdu(conn->cls_conn, hdr, NULL, 0)) + rc = ISCSI_ERR_CONN_FAILED; break; case ISCSI_OP_REJECT: /* we need sth like iscsi_reject_rsp()*/ @@ -568,20 +592,24 @@ static int iscsi_data_xmit(struct iscsi_conn *conn) } /* process command queue */ - while (__kfifo_get(conn->xmitqueue, (void*)&conn->ctask, - sizeof(void*))) { + spin_lock_bh(&conn->session->lock); + while (!list_empty(&conn->xmitqueue)) { /* * iscsi tcp may readd the task to the xmitqueue to send * write data */ - spin_lock_bh(&conn->session->lock); - if (list_empty(&conn->ctask->running)) - list_add_tail(&conn->ctask->running, &conn->run_list); + conn->ctask = list_entry(conn->xmitqueue.next, + struct iscsi_cmd_task, running); + conn->ctask->state = ISCSI_TASK_RUNNING; + list_move_tail(conn->xmitqueue.next, &conn->run_list); spin_unlock_bh(&conn->session->lock); + rc = tt->xmit_cmd_task(conn, conn->ctask); if (rc) goto again; + spin_lock_bh(&conn->session->lock); } + spin_unlock_bh(&conn->session->lock); /* done with this ctask */ conn->ctask = NULL; @@ -691,6 +719,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) sc->SCp.phase = session->age; sc->SCp.ptr = (char *)ctask; + ctask->state = ISCSI_TASK_PENDING; ctask->mtask = NULL; ctask->conn = conn; ctask->sc = sc; @@ -700,7 +729,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) session->tt->init_cmd_task(ctask); - __kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*)); + list_add_tail(&ctask->running, &conn->xmitqueue); debug_scsi( "ctask enq [%s cid %d sc %lx itt 0x%x len %d cmdsn %d win %d]\n", sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read", @@ -977,31 +1006,27 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc, /* * xmit mutex and session lock must be held */ -#define iscsi_remove_task(tasktype) \ -static struct iscsi_##tasktype * \ -iscsi_remove_##tasktype(struct kfifo *fifo, uint32_t itt) \ -{ \ - int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*); \ - struct iscsi_##tasktype *task; \ - \ - debug_scsi("searching %d tasks\n", nr_tasks); \ - \ - for (i = 0; i < nr_tasks; i++) { \ - __kfifo_get(fifo, (void*)&task, sizeof(void*)); \ - debug_scsi("check task %u\n", task->itt); \ - \ - if (task->itt == itt) { \ - debug_scsi("matched task\n"); \ - return task; \ - } \ - \ - __kfifo_put(fifo, (void*)&task, sizeof(void*)); \ - } \ - return NULL; \ -} +static struct iscsi_mgmt_task * +iscsi_remove_mgmt_task(struct kfifo *fifo, uint32_t itt) +{ + int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*); + struct iscsi_mgmt_task *task; -iscsi_remove_task(mgmt_task); -iscsi_remove_task(cmd_task); + debug_scsi("searching %d tasks\n", nr_tasks); + + for (i = 0; i < nr_tasks; i++) { + __kfifo_get(fifo, (void*)&task, sizeof(void*)); + debug_scsi("check task %u\n", task->itt); + + if (task->itt == itt) { + debug_scsi("matched task\n"); + return task; + } + + __kfifo_put(fifo, (void*)&task, sizeof(void*)); + } + return NULL; +} static int iscsi_ctask_mtask_cleanup(struct iscsi_cmd_task *ctask) { @@ -1027,12 +1052,13 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask, { struct scsi_cmnd *sc; - conn->session->tt->cleanup_cmd_task(conn, ctask); - iscsi_ctask_mtask_cleanup(ctask); - sc = ctask->sc; if (!sc) return; + + conn->session->tt->cleanup_cmd_task(conn, ctask); + iscsi_ctask_mtask_cleanup(ctask); + sc->result = err; sc->resid = sc->request_bufflen; iscsi_complete_command(conn->session, ctask); @@ -1043,7 +1069,6 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) struct iscsi_cmd_task *ctask = (struct iscsi_cmd_task *)sc->SCp.ptr; struct iscsi_conn *conn = ctask->conn; struct iscsi_session *session = conn->session; - struct iscsi_cmd_task *pending_ctask; int rc; conn->eh_abort_cnt++; @@ -1061,8 +1086,11 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) goto failed; /* ctask completed before time out */ - if (!ctask->sc) - goto success; + if (!ctask->sc) { + spin_unlock_bh(&session->lock); + debug_scsi("sc completed while abort in progress\n"); + goto success_rel_mutex; + } /* what should we do here ? */ if (conn->ctask == ctask) { @@ -1071,17 +1099,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) goto failed; } - /* check for the easy pending cmd abort */ - pending_ctask = iscsi_remove_cmd_task(conn->xmitqueue, ctask->itt); - if (pending_ctask) { - /* iscsi_tcp queues write transfers on the xmitqueue */ - if (list_empty(&pending_ctask->running)) { - debug_scsi("found pending task\n"); - goto success; - } else - __kfifo_put(conn->xmitqueue, (void*)&pending_ctask, - sizeof(void*)); - } + if (ctask->state == ISCSI_TASK_PENDING) + goto success_cleanup; conn->tmabort_state = TMABORT_INITIAL; @@ -1089,25 +1108,31 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) rc = iscsi_exec_abort_task(sc, ctask); spin_lock_bh(&session->lock); - iscsi_ctask_mtask_cleanup(ctask); if (rc || sc->SCp.phase != session->age || session->state != ISCSI_STATE_LOGGED_IN) goto failed; + iscsi_ctask_mtask_cleanup(ctask); - /* ctask completed before tmf abort response */ - if (!ctask->sc) { - debug_scsi("sc completed while abort in progress\n"); - goto success; - } - - if (conn->tmabort_state != TMABORT_SUCCESS) { + switch (conn->tmabort_state) { + case TMABORT_SUCCESS: + goto success_cleanup; + case TMABORT_NOT_FOUND: + if (!ctask->sc) { + /* ctask completed before tmf abort response */ + spin_unlock_bh(&session->lock); + debug_scsi("sc completed while abort in progress\n"); + goto success_rel_mutex; + } + /* fall through */ + default: + /* timedout or failed */ spin_unlock_bh(&session->lock); iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); spin_lock_bh(&session->lock); goto failed; } -success: +success_cleanup: debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, ctask->itt); spin_unlock_bh(&session->lock); @@ -1121,6 +1146,7 @@ success: spin_unlock(&session->lock); write_unlock_bh(conn->recv_lock); +success_rel_mutex: mutex_unlock(&conn->xmitmutex); return SUCCESS; @@ -1263,6 +1289,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, if (cmd_task_size) ctask->dd_data = &ctask[1]; ctask->itt = cmd_i; + INIT_LIST_HEAD(&ctask->running); } spin_lock_init(&session->lock); @@ -1282,6 +1309,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, if (mgmt_task_size) mtask->dd_data = &mtask[1]; mtask->itt = ISCSI_MGMT_ITT_OFFSET + cmd_i; + INIT_LIST_HEAD(&mtask->running); } if (scsi_add_host(shost, NULL)) @@ -1322,15 +1350,18 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session) { struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); struct iscsi_session *session = iscsi_hostdata(shost->hostdata); + struct module *owner = cls_session->transport->owner; scsi_remove_host(shost); iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds); iscsi_pool_free(&session->cmdpool, (void**)session->cmds); + kfree(session->targetname); + iscsi_destroy_session(cls_session); scsi_host_put(shost); - module_put(cls_session->transport->owner); + module_put(owner); } EXPORT_SYMBOL_GPL(iscsi_session_teardown); @@ -1361,12 +1392,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx) conn->tmabort_state = TMABORT_INITIAL; INIT_LIST_HEAD(&conn->run_list); INIT_LIST_HEAD(&conn->mgmt_run_list); - - /* initialize general xmit PDU commands queue */ - conn->xmitqueue = kfifo_alloc(session->cmds_max * sizeof(void*), - GFP_KERNEL, NULL); - if (conn->xmitqueue == ERR_PTR(-ENOMEM)) - goto xmitqueue_alloc_fail; + INIT_LIST_HEAD(&conn->xmitqueue); /* initialize general immediate & non-immediate PDU commands queue */ conn->immqueue = kfifo_alloc(session->mgmtpool_max * sizeof(void*), @@ -1394,7 +1420,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx) data = kmalloc(DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, GFP_KERNEL); if (!data) goto login_mtask_data_alloc_fail; - conn->login_mtask->data = data; + conn->login_mtask->data = conn->data = data; init_timer(&conn->tmabort_timer); mutex_init(&conn->xmitmutex); @@ -1410,8 +1436,6 @@ login_mtask_alloc_fail: mgmtqueue_alloc_fail: kfifo_free(conn->immqueue); immqueue_alloc_fail: - kfifo_free(conn->xmitqueue); -xmitqueue_alloc_fail: iscsi_destroy_conn(cls_conn); return NULL; } @@ -1432,12 +1456,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); mutex_lock(&conn->xmitmutex); - if (conn->c_stage == ISCSI_CONN_INITIAL_STAGE) { - if (session->tt->suspend_conn_recv) - session->tt->suspend_conn_recv(conn); - - session->tt->terminate_conn(conn); - } spin_lock_bh(&session->lock); conn->c_stage = ISCSI_CONN_CLEANUP_WAIT; @@ -1474,7 +1492,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) } spin_lock_bh(&session->lock); - kfree(conn->login_mtask->data); + kfree(conn->data); + kfree(conn->persistent_address); __kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask, sizeof(void*)); list_del(&conn->item); @@ -1489,7 +1508,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) session->cmdsn = session->max_cmdsn = session->exp_cmdsn = 1; spin_unlock_bh(&session->lock); - kfifo_free(conn->xmitqueue); kfifo_free(conn->immqueue); kfifo_free(conn->mgmtqueue); @@ -1572,7 +1590,7 @@ static void fail_all_commands(struct iscsi_conn *conn) struct iscsi_cmd_task *ctask, *tmp; /* flush pending */ - while (__kfifo_get(conn->xmitqueue, (void*)&ctask, sizeof(void*))) { + list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) { debug_scsi("failing pending sc %p itt 0x%x\n", ctask->sc, ctask->itt); fail_command(conn, ctask, DID_BUS_BUSY << 16); @@ -1615,8 +1633,9 @@ static void iscsi_start_session_recovery(struct iscsi_session *session, set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); spin_unlock_bh(&session->lock); - if (session->tt->suspend_conn_recv) - session->tt->suspend_conn_recv(conn); + write_lock_bh(conn->recv_lock); + set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); + write_unlock_bh(conn->recv_lock); mutex_lock(&conn->xmitmutex); /* @@ -1635,7 +1654,6 @@ static void iscsi_start_session_recovery(struct iscsi_session *session, } } - session->tt->terminate_conn(conn); /* * flush queues. */ diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 5c68cdd8736..d384c16f4a8 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -222,7 +222,7 @@ lpfc_issue_lip(struct Scsi_Host *host) pmboxq->mb.mbxCommand = MBX_DOWN_LINK; pmboxq->mb.mbxOwner = OWN_HOST; - mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) { memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); @@ -884,7 +884,7 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count) phba->sysfs_mbox.mbox == NULL ) { sysfs_mbox_idle(phba); spin_unlock_irq(host->host_lock); - return -EINVAL; + return -EAGAIN; } } @@ -1000,14 +1000,15 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count) spin_unlock_irq(phba->host->host_lock); rc = lpfc_sli_issue_mbox_wait (phba, phba->sysfs_mbox.mbox, - phba->fc_ratov * 2); + lpfc_mbox_tmo_val(phba, + phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ); spin_lock_irq(phba->host->host_lock); } if (rc != MBX_SUCCESS) { sysfs_mbox_idle(phba); spin_unlock_irq(host->host_lock); - return -ENODEV; + return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; } phba->sysfs_mbox.state = SMBOX_READING; } @@ -1016,7 +1017,7 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count) printk(KERN_WARNING "mbox_read: Bad State\n"); sysfs_mbox_idle(phba); spin_unlock_irq(host->host_lock); - return -EINVAL; + return -EAGAIN; } memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count); @@ -1210,8 +1211,10 @@ lpfc_get_stats(struct Scsi_Host *shost) struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; struct lpfc_sli *psli = &phba->sli; struct fc_host_statistics *hs = &phba->link_stats; + struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; LPFC_MBOXQ_t *pmboxq; MAILBOX_t *pmb; + unsigned long seconds; int rc = 0; pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); @@ -1272,22 +1275,103 @@ lpfc_get_stats(struct Scsi_Host *shost) hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; hs->error_frames = pmb->un.varRdLnk.crcCnt; + hs->link_failure_count -= lso->link_failure_count; + hs->loss_of_sync_count -= lso->loss_of_sync_count; + hs->loss_of_signal_count -= lso->loss_of_signal_count; + hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; + hs->invalid_tx_word_count -= lso->invalid_tx_word_count; + hs->invalid_crc_count -= lso->invalid_crc_count; + hs->error_frames -= lso->error_frames; + if (phba->fc_topology == TOPOLOGY_LOOP) { hs->lip_count = (phba->fc_eventTag >> 1); + hs->lip_count -= lso->link_events; hs->nos_count = -1; } else { hs->lip_count = -1; hs->nos_count = (phba->fc_eventTag >> 1); + hs->nos_count -= lso->link_events; } hs->dumped_frames = -1; -/* FIX ME */ - /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/ + seconds = get_seconds(); + if (seconds < psli->stats_start) + hs->seconds_since_last_reset = seconds + + ((unsigned long)-1 - psli->stats_start); + else + hs->seconds_since_last_reset = seconds - psli->stats_start; return hs; } +static void +lpfc_reset_stats(struct Scsi_Host *shost) +{ + struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; + struct lpfc_sli *psli = &phba->sli; + struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; + LPFC_MBOXQ_t *pmboxq; + MAILBOX_t *pmb; + int rc = 0; + + pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmboxq) + return; + memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); + + pmb = &pmboxq->mb; + pmb->mbxCommand = MBX_READ_STATUS; + pmb->mbxOwner = OWN_HOST; + pmb->un.varWords[0] = 0x1; /* reset request */ + pmboxq->context1 = NULL; + + if ((phba->fc_flag & FC_OFFLINE_MODE) || + (!(psli->sli_flag & LPFC_SLI2_ACTIVE))) + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + else + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + + if (rc != MBX_SUCCESS) { + if (rc == MBX_TIMEOUT) + pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + else + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + + memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); + pmb->mbxCommand = MBX_READ_LNK_STAT; + pmb->mbxOwner = OWN_HOST; + pmboxq->context1 = NULL; + + if ((phba->fc_flag & FC_OFFLINE_MODE) || + (!(psli->sli_flag & LPFC_SLI2_ACTIVE))) + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + else + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + + if (rc != MBX_SUCCESS) { + if (rc == MBX_TIMEOUT) + pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + else + mempool_free( pmboxq, phba->mbox_mem_pool); + return; + } + + lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; + lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; + lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; + lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; + lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; + lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; + lso->error_frames = pmb->un.varRdLnk.crcCnt; + lso->link_events = (phba->fc_eventTag >> 1); + + psli->stats_start = get_seconds(); + + return; +} /* * The LPFC driver treats linkdown handling as target loss events so there @@ -1431,8 +1515,7 @@ struct fc_function_template lpfc_transport_functions = { */ .get_fc_host_stats = lpfc_get_stats, - - /* the LPFC driver doesn't support resetting stats yet */ + .reset_fc_host_stats = lpfc_reset_stats, .dd_fcrport_size = sizeof(struct lpfc_rport_data), .show_rport_maxframe_size = 1, diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 517e9e4dd46..2a176467f71 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -127,6 +127,7 @@ void lpfc_config_port(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_kill_board(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_mbox_put(struct lpfc_hba *, LPFC_MBOXQ_t *); LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *); +int lpfc_mbox_tmo_val(struct lpfc_hba *, int); int lpfc_mem_alloc(struct lpfc_hba *); void lpfc_mem_free(struct lpfc_hba *); diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index b65ee57af53..bbb7310210b 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -131,6 +131,7 @@ lpfc_ct_unsol_event(struct lpfc_hba * phba, } ct_unsol_event_exit_piocbq: + list_del(&head); if (pmbuf) { list_for_each_entry_safe(matp, next_matp, &pmbuf->list, list) { lpfc_mbuf_free(phba, matp->virt, matp->phys); @@ -481,7 +482,7 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, if (CTrsp->CommandResponse.bits.CmdRsp == be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) { lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, - "%d:0239 NameServer Rsp " + "%d:0208 NameServer Rsp " "Data: x%x\n", phba->brd_no, phba->fc_flag); @@ -588,13 +589,9 @@ lpfc_get_hba_sym_node_name(struct lpfc_hba * phba, uint8_t * symbp) lpfc_decode_firmware_rev(phba, fwrev, 0); - if (phba->Port[0]) { - sprintf(symbp, "Emulex %s Port %s FV%s DV%s", phba->ModelName, - phba->Port, fwrev, lpfc_release_version); - } else { - sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName, - fwrev, lpfc_release_version); - } + sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName, + fwrev, lpfc_release_version); + return; } /* diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index b89f6cb641e..3567de61316 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1848,9 +1848,12 @@ static void lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { + IOCB_t *irsp; struct lpfc_nodelist *ndlp; LPFC_MBOXQ_t *mbox = NULL; + irsp = &rspiocb->iocb; + ndlp = (struct lpfc_nodelist *) cmdiocb->context1; if (cmdiocb->context_un.mbox) mbox = cmdiocb->context_un.mbox; @@ -1893,9 +1896,15 @@ lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, mempool_free( mbox, phba->mbox_mem_pool); } else { mempool_free( mbox, phba->mbox_mem_pool); - if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { - lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); - ndlp = NULL; + /* Do not call NO_LIST for lpfc_els_abort'ed ELS cmds */ + if (!((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && + ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || + (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) || + (irsp->un.ulpWord[4] == IOERR_SLI_DOWN)))) { + if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { + lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); + ndlp = NULL; + } } } } @@ -2839,7 +2848,7 @@ lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) /* Xmit ELS RPS ACC response tag <ulpIoTag> */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "%d:0128 Xmit ELS RPS ACC response tag x%x " + "%d:0118 Xmit ELS RPS ACC response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, @@ -2948,7 +2957,7 @@ lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize, /* Xmit ELS RPL ACC response tag <ulpIoTag> */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "%d:0128 Xmit ELS RPL ACC response tag x%x " + "%d:0120 Xmit ELS RPL ACC response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, @@ -3109,7 +3118,7 @@ lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist *ndlp, *next_ndlp; /* FAN received */ - lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:265 FAN received\n", + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0265 FAN received\n", phba->brd_no); icmd = &cmdiocb->iocb; diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 4d6cf990c4f..b2f1552f184 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1557,6 +1557,8 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; } } + + spin_lock_irq(phba->host->host_lock); list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && (ndlp == (struct lpfc_nodelist *) mb->context2)) { @@ -1569,6 +1571,7 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) mempool_free(mb, phba->mbox_mem_pool); } } + spin_unlock_irq(phba->host->host_lock); lpfc_els_abort(phba,ndlp,0); spin_lock_irq(phba->host->host_lock); @@ -1782,7 +1785,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to REGLOGIN */ /* FIND node DID reglogin */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID reglogin" + "%d:0901 FIND node DID reglogin" " Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -1805,7 +1808,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to PRLI */ /* FIND node DID prli */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID prli " + "%d:0902 FIND node DID prli " "Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -1828,7 +1831,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to NPR */ /* FIND node DID npr */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID npr " + "%d:0903 FIND node DID npr " "Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -1851,7 +1854,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) /* LOG change to UNUSED */ /* FIND node DID unused */ lpfc_printf_log(phba, KERN_INFO, LOG_NODE, - "%d:0931 FIND node DID unused " + "%d:0905 FIND node DID unused " "Data: x%p x%x x%x x%x\n", phba->brd_no, ndlp, ndlp->nlp_DID, @@ -2335,7 +2338,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba) initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!initlinkmbox) { lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, - "%d:0226 Device Discovery " + "%d:0206 Device Discovery " "completion error\n", phba->brd_no); phba->hba_state = LPFC_HBA_ERROR; @@ -2365,7 +2368,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba) if (!clearlambox) { clrlaerr = 1; lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, - "%d:0226 Device Discovery " + "%d:0207 Device Discovery " "completion error\n", phba->brd_no); phba->hba_state = LPFC_HBA_ERROR; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index ef47b824cbe..f6948ffe689 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1379,6 +1379,7 @@ lpfc_offline(struct lpfc_hba * phba) /* stop all timers associated with this hba */ lpfc_stop_timer(phba); phba->work_hba_events = 0; + phba->work_ha = 0; lpfc_printf_log(phba, KERN_WARNING, @@ -1616,7 +1617,11 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) goto out_free_iocbq; } - /* We can rely on a queue depth attribute only after SLI HBA setup */ + /* + * Set initial can_queue value since 0 is no longer supported and + * scsi_add_host will fail. This will be adjusted later based on the + * max xri value determined in hba setup. + */ host->can_queue = phba->cfg_hba_queue_depth - 10; /* Tell the midlayer we support 16 byte commands */ @@ -1656,6 +1661,12 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) goto out_free_irq; } + /* + * hba setup may have changed the hba_queue_depth so we need to adjust + * the value of can_queue. + */ + host->can_queue = phba->cfg_hba_queue_depth - 10; + lpfc_discovery_wait(phba); if (phba->cfg_poll & DISABLE_FCP_RING_INT) { diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index e42f22aaf71..4d016c2a1b2 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -651,3 +651,19 @@ lpfc_mbox_get(struct lpfc_hba * phba) return mbq; } + +int +lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd) +{ + switch (cmd) { + case MBX_WRITE_NV: /* 0x03 */ + case MBX_UPDATE_CFG: /* 0x1B */ + case MBX_DOWN_LOAD: /* 0x1C */ + case MBX_DEL_LD_ENTRY: /* 0x1D */ + case MBX_LOAD_AREA: /* 0x81 */ + case MBX_FLASH_WR_ULA: /* 0x98 */ + case MBX_LOAD_EXP_ROM: /* 0x9C */ + return LPFC_MBOX_TMO_FLASH_CMD; + } + return LPFC_MBOX_TMO; +} diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index bd0b0e293d6..20449a8dd53 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -179,7 +179,7 @@ lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, /* Abort outstanding I/O on NPort <nlp_DID> */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, - "%d:0201 Abort outstanding I/O on NPort x%x " + "%d:0205 Abort outstanding I/O on NPort x%x " "Data: x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); @@ -393,6 +393,20 @@ lpfc_rcv_plogi(struct lpfc_hba * phba, mbox->context2 = ndlp; ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); + /* + * If there is an outstanding PLOGI issued, abort it before + * sending ACC rsp for received PLOGI. If pending plogi + * is not canceled here, the plogi will be rejected by + * remote port and will be retried. On a configuration with + * single discovery thread, this will cause a huge delay in + * discovery. Also this will cause multiple state machines + * running in parallel for this node. + */ + if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { + /* software abort outstanding PLOGI */ + lpfc_els_abort(phba, ndlp, 1); + } + lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0); return 1; @@ -1601,7 +1615,13 @@ lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba, lpfc_rcv_padisc(phba, ndlp, cmdiocb); - if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { + /* + * Do not start discovery if discovery is about to start + * or discovery in progress for this node. Starting discovery + * here will affect the counting of discovery threads. + */ + if ((!(ndlp->nlp_flag & NLP_DELAY_TMO)) && + (ndlp->nlp_flag & NLP_NPR_2B_DISC)){ if (ndlp->nlp_flag & NLP_NPR_ADISC) { ndlp->nlp_prev_state = NLP_STE_NPR_NODE; ndlp->nlp_state = NLP_STE_ADISC_ISSUE; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index a760a44173d..a8816a8738f 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -21,6 +21,7 @@ #include <linux/pci.h> #include <linux/interrupt.h> +#include <linux/delay.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> @@ -841,6 +842,21 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) return 0; } +static void +lpfc_block_error_handler(struct scsi_cmnd *cmnd) +{ + struct Scsi_Host *shost = cmnd->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); + + spin_lock_irq(shost->host_lock); + while (rport->port_state == FC_PORTSTATE_BLOCKED) { + spin_unlock_irq(shost->host_lock); + msleep(1000); + spin_lock_irq(shost->host_lock); + } + spin_unlock_irq(shost->host_lock); + return; +} static int lpfc_abort_handler(struct scsi_cmnd *cmnd) @@ -855,6 +871,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd) unsigned int loop_count = 0; int ret = SUCCESS; + lpfc_block_error_handler(cmnd); spin_lock_irq(shost->host_lock); lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; @@ -957,6 +974,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd) int ret = FAILED; int cnt, loopcnt; + lpfc_block_error_handler(cmnd); spin_lock_irq(shost->host_lock); /* * If target is not in a MAPPED state, delay the reset until @@ -1073,6 +1091,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd) int cnt, loopcnt; struct lpfc_scsi_buf * lpfc_cmd; + lpfc_block_error_handler(cmnd); spin_lock_irq(shost->host_lock); lpfc_cmd = lpfc_get_scsi_buf(phba); @@ -1104,7 +1123,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd) ndlp->rport->dd_data); if (ret != SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_FCP, - "%d:0713 Bus Reset on target %d failed\n", + "%d:0700 Bus Reset on target %d failed\n", phba->brd_no, i); err_count++; } diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 350a625fa22..70f4d5a1348 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -320,7 +320,8 @@ lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) kfree(old_arr); return iotag; } - } + } else + spin_unlock_irq(phba->host->host_lock); lpfc_printf_log(phba, KERN_ERR,LOG_SLI, "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n", @@ -969,9 +970,11 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba) * resources need to be recovered. */ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { - printk(KERN_INFO "%s: IOCB cmd 0x%x processed." - " Skipping completion\n", __FUNCTION__, - irsp->ulpCommand); + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "%d:0314 IOCB cmd 0x%x" + " processed. Skipping" + " completion", phba->brd_no, + irsp->ulpCommand); break; } @@ -1104,7 +1107,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, if (unlikely(irsp->ulpStatus)) { /* Rsp ring <ringno> error: IOCB */ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, - "%d:0326 Rsp Ring %d error: IOCB Data: " + "%d:0336 Rsp Ring %d error: IOCB Data: " "x%x x%x x%x x%x x%x x%x x%x x%x\n", phba->brd_no, pring->ringno, irsp->un.ulpWord[0], irsp->un.ulpWord[1], @@ -1122,9 +1125,11 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, * resources need to be recovered. */ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { - printk(KERN_INFO "%s: IOCB cmd 0x%x processed. " - "Skipping completion\n", __FUNCTION__, - irsp->ulpCommand); + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "%d:0333 IOCB cmd 0x%x" + " processed. Skipping" + " completion\n", phba->brd_no, + irsp->ulpCommand); break; } @@ -1155,7 +1160,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, } else { /* Unknown IOCB command */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0321 Unknown IOCB command " + "%d:0334 Unknown IOCB command " "Data: x%x, x%x x%x x%x x%x\n", phba->brd_no, type, irsp->ulpCommand, irsp->ulpStatus, irsp->ulpIoTag, @@ -1238,7 +1243,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0312 Ring %d handler: portRspPut %d " + "%d:0303 Ring %d handler: portRspPut %d " "is bigger then rsp ring %d\n", phba->brd_no, pring->ringno, portRspPut, portRspMax); @@ -1383,7 +1388,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0321 Unknown IOCB command " + "%d:0335 Unknown IOCB command " "Data: x%x x%x x%x x%x\n", phba->brd_no, irsp->ulpCommand, @@ -1399,11 +1404,11 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, next_iocb, &saveq->list, list) { + list_del(&rspiocbp->list); lpfc_sli_release_iocbq(phba, rspiocbp); } } - lpfc_sli_release_iocbq(phba, saveq); } } @@ -1711,15 +1716,13 @@ lpfc_sli_brdreset(struct lpfc_hba * phba) phba->fc_myDID = 0; phba->fc_prevDID = 0; - psli->sli_flag = 0; - /* Turn off parity checking and serr during the physical reset */ pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value & ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); - psli->sli_flag &= ~LPFC_SLI2_ACTIVE; + psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); /* Now toggle INITFF bit in the Host Control Register */ writel(HC_INITFF, phba->HCregaddr); mdelay(1); @@ -1760,7 +1763,7 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba) /* Restart HBA */ lpfc_printf_log(phba, KERN_INFO, LOG_SLI, - "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no, + "%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no, phba->hba_state, psli->sli_flag); word0 = 0; @@ -1792,6 +1795,9 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba) spin_unlock_irq(phba->host->host_lock); + memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); + psli->stats_start = get_seconds(); + if (skip_post) mdelay(100); else @@ -1902,6 +1908,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba) } while (resetcount < 2 && !done) { + spin_lock_irq(phba->host->host_lock); + phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irq(phba->host->host_lock); phba->hba_state = LPFC_STATE_UNKNOWN; lpfc_sli_brdrestart(phba); msleep(2500); @@ -1909,6 +1918,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba) if (rc) break; + spin_lock_irq(phba->host->host_lock); + phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irq(phba->host->host_lock); resetcount++; /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 @@ -2194,7 +2206,8 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) return (MBX_NOT_FINISHED); } /* timeout active mbox command */ - mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO); + mod_timer(&psli->mbox_tmo, (jiffies + + (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); } /* Mailbox cmd <cmd> issue */ @@ -2254,7 +2267,6 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) break; case MBX_POLL: - i = 0; psli->mbox_active = NULL; if (psli->sli_flag & LPFC_SLI2_ACTIVE) { /* First read mbox status word */ @@ -2268,11 +2280,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) /* Read the HBA Host Attention Register */ ha_copy = readl(phba->HAregaddr); + i = lpfc_mbox_tmo_val(phba, mb->mbxCommand); + i *= 1000; /* Convert to ms */ + /* Wait for command to complete */ while (((word0 & OWN_CHIP) == OWN_CHIP) || (!(ha_copy & HA_MBATT) && (phba->hba_state > LPFC_WARM_START))) { - if (i++ >= 100) { + if (i-- <= 0) { psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); @@ -2290,7 +2305,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) /* Can be in interrupt context, do not sleep */ /* (or might be called with interrupts disabled) */ - mdelay(i); + mdelay(1); spin_lock_irqsave(phba->host->host_lock, drvr_flag); @@ -3005,7 +3020,7 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, if (timeleft == 0) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0329 IOCB wait timeout error - no " + "%d:0338 IOCB wait timeout error - no " "wake response Data x%x\n", phba->brd_no, timeout); retval = IOCB_TIMEDOUT; diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h index d8ef0d2894d..e26de680935 100644 --- a/drivers/scsi/lpfc/lpfc_sli.h +++ b/drivers/scsi/lpfc/lpfc_sli.h @@ -172,6 +172,18 @@ struct lpfc_sli_stat { uint32_t mbox_busy; /* Mailbox cmd busy */ }; +/* Structure to store link status values when port stats are reset */ +struct lpfc_lnk_stat { + uint32_t link_failure_count; + uint32_t loss_of_sync_count; + uint32_t loss_of_signal_count; + uint32_t prim_seq_protocol_err_count; + uint32_t invalid_tx_word_count; + uint32_t invalid_crc_count; + uint32_t error_frames; + uint32_t link_events; +}; + /* Structure used to hold SLI information */ struct lpfc_sli { uint32_t num_rings; @@ -201,6 +213,8 @@ struct lpfc_sli { struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */ size_t iocbq_lookup_len; /* current lengs of the array */ uint16_t last_iotag; /* last allocated IOTAG */ + unsigned long stats_start; /* in seconds */ + struct lpfc_lnk_stat lnk_stat_offsets; }; /* Given a pointer to the start of the ring, and the slot number of @@ -211,3 +225,9 @@ struct lpfc_sli { #define LPFC_MBOX_TMO 30 /* Sec tmo for outstanding mbox command */ +#define LPFC_MBOX_TMO_FLASH_CMD 300 /* Sec tmo for outstanding FLASH write + * or erase cmds. This is especially + * long because of the potential of + * multiple flash erases that can be + * spawned. + */ diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index 10e89c6ae82..c7091ea29f3 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -18,7 +18,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "8.1.7" +#define LPFC_DRIVER_VERSION "8.1.9" #define LPFC_DRIVER_NAME "lpfc" diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h index 4675343228a..8cd0bd1d0f7 100644 --- a/drivers/scsi/megaraid/mega_common.h +++ b/drivers/scsi/megaraid/mega_common.h @@ -37,6 +37,12 @@ #define LSI_MAX_CHANNELS 16 #define LSI_MAX_LOGICAL_DRIVES_64LD (64+1) +#define HBA_SIGNATURE_64_BIT 0x299 +#define PCI_CONF_AMISIG64 0xa4 + +#define MEGA_SCSI_INQ_EVPD 1 +#define MEGA_INVALID_FIELD_IN_CDB 0x24 + /** * scb_t - scsi command control block diff --git a/drivers/scsi/megaraid/megaraid_ioctl.h b/drivers/scsi/megaraid/megaraid_ioctl.h index bdaee144a1c..b8aa34202ec 100644 --- a/drivers/scsi/megaraid/megaraid_ioctl.h +++ b/drivers/scsi/megaraid/megaraid_ioctl.h @@ -132,6 +132,10 @@ typedef struct uioc { /* Driver Data: */ void __user * user_data; uint32_t user_data_len; + + /* 64bit alignment */ + uint32_t pad_for_64bit_align; + mraid_passthru_t __user *user_pthru; mraid_passthru_t *pthru32; diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 92715130ac0..cd982c877da 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -10,7 +10,7 @@ * 2 of the License, or (at your option) any later version. * * FILE : megaraid_mbox.c - * Version : v2.20.4.8 (Apr 11 2006) + * Version : v2.20.4.9 (Jul 16 2006) * * Authors: * Atul Mukker <Atul.Mukker@lsil.com> @@ -720,6 +720,7 @@ megaraid_init_mbox(adapter_t *adapter) struct pci_dev *pdev; mraid_device_t *raid_dev; int i; + uint32_t magic64; adapter->ito = MBOX_TIMEOUT; @@ -863,12 +864,33 @@ megaraid_init_mbox(adapter_t *adapter) // Set the DMA mask to 64-bit. All supported controllers as capable of // DMA in this range - if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK) != 0) { - - con_log(CL_ANN, (KERN_WARNING - "megaraid: could not set DMA mask for 64-bit.\n")); + pci_read_config_dword(adapter->pdev, PCI_CONF_AMISIG64, &magic64); + + if (((magic64 == HBA_SIGNATURE_64_BIT) && + ((adapter->pdev->subsystem_device != + PCI_SUBSYS_ID_MEGARAID_SATA_150_6) || + (adapter->pdev->subsystem_device != + PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) || + (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && + adapter->pdev->device == PCI_DEVICE_ID_VERDE) || + (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && + adapter->pdev->device == PCI_DEVICE_ID_DOBSON) || + (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && + adapter->pdev->device == PCI_DEVICE_ID_LINDSAY) || + (adapter->pdev->vendor == PCI_VENDOR_ID_DELL && + adapter->pdev->device == PCI_DEVICE_ID_PERC4_DI_EVERGLADES) || + (adapter->pdev->vendor == PCI_VENDOR_ID_DELL && + adapter->pdev->device == PCI_DEVICE_ID_PERC4E_DI_KOBUK)) { + if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK)) { + con_log(CL_ANN, (KERN_WARNING + "megaraid: DMA mask for 64-bit failed\n")); - goto out_free_sysfs_res; + if (pci_set_dma_mask (adapter->pdev, DMA_32BIT_MASK)) { + con_log(CL_ANN, (KERN_WARNING + "megaraid: 32-bit DMA mask failed\n")); + goto out_free_sysfs_res; + } + } } // setup tasklet for DPC @@ -1622,6 +1644,14 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy) rdev->last_disp |= (1L << SCP2CHANNEL(scp)); } + if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) { + scp->sense_buffer[0] = 0x70; + scp->sense_buffer[2] = ILLEGAL_REQUEST; + scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB; + scp->result = CHECK_CONDITION << 1; + return NULL; + } + /* Fall through */ case READ_CAPACITY: diff --git a/drivers/scsi/megaraid/megaraid_mbox.h b/drivers/scsi/megaraid/megaraid_mbox.h index 868fb0ec93e..2b5a3285f79 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.h +++ b/drivers/scsi/megaraid/megaraid_mbox.h @@ -21,8 +21,8 @@ #include "megaraid_ioctl.h" -#define MEGARAID_VERSION "2.20.4.8" -#define MEGARAID_EXT_VERSION "(Release Date: Mon Apr 11 12:27:22 EST 2006)" +#define MEGARAID_VERSION "2.20.4.9" +#define MEGARAID_EXT_VERSION "(Release Date: Sun Jul 16 12:27:22 EST 2006)" /* diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c index e8f534fb336..d85b9a8f1b8 100644 --- a/drivers/scsi/megaraid/megaraid_mm.c +++ b/drivers/scsi/megaraid/megaraid_mm.c @@ -10,7 +10,7 @@ * 2 of the License, or (at your option) any later version. * * FILE : megaraid_mm.c - * Version : v2.20.2.6 (Mar 7 2005) + * Version : v2.20.2.7 (Jul 16 2006) * * Common management module */ diff --git a/drivers/scsi/megaraid/megaraid_mm.h b/drivers/scsi/megaraid/megaraid_mm.h index 3d9e67d6849..c8762b2b8ed 100644 --- a/drivers/scsi/megaraid/megaraid_mm.h +++ b/drivers/scsi/megaraid/megaraid_mm.h @@ -27,9 +27,9 @@ #include "megaraid_ioctl.h" -#define LSI_COMMON_MOD_VERSION "2.20.2.6" +#define LSI_COMMON_MOD_VERSION "2.20.2.7" #define LSI_COMMON_MOD_EXT_VERSION \ - "(Release Date: Mon Mar 7 00:01:03 EST 2005)" + "(Release Date: Sun Jul 16 00:01:03 EST 2006)" #define LSI_DBGLVL dbglevel diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c index d1f38c32aa1..efc8fff1d25 100644 --- a/drivers/scsi/pdc_adma.c +++ b/drivers/scsi/pdc_adma.c @@ -183,7 +183,8 @@ static struct ata_port_info adma_port_info[] = { { .sht = &adma_ata_sht, .host_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | - ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO, + ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | + ATA_FLAG_PIO_POLLING, .pio_mask = 0x10, /* pio4 */ .udma_mask = 0x1f, /* udma0-4 */ .port_ops = &adma_ata_ops, diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 139ea0e27fd..0930260aec2 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -487,6 +487,7 @@ typedef struct { #define MBA_IP_RCV_BUFFER_EMPTY 0x8026 /* IP receive buffer queue empty. */ #define MBA_IP_HDR_DATA_SPLIT 0x8027 /* IP header/data splitting feature */ /* used. */ +#define MBA_TRACE_NOTIFICATION 0x8028 /* Trace/Diagnostic notification. */ #define MBA_POINT_TO_POINT 0x8030 /* Point to point mode. */ #define MBA_CMPLT_1_16BIT 0x8031 /* Completion 1 16bit IOSB. */ #define MBA_CMPLT_2_16BIT 0x8032 /* Completion 2 16bit IOSB. */ diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 9758dba9554..859649160ca 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3063,6 +3063,7 @@ qla2x00_update_fcports(scsi_qla_host_t *ha) int qla2x00_abort_isp(scsi_qla_host_t *ha) { + int rval; unsigned long flags = 0; uint16_t cnt; srb_t *sp; @@ -3119,6 +3120,16 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) ha->isp_abort_cnt = 0; clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); + + if (ha->eft) { + rval = qla2x00_trace_control(ha, TC_ENABLE, + ha->eft_dma, EFT_NUM_BUFFERS); + if (rval) { + qla_printk(KERN_WARNING, ha, + "Unable to reinitialize EFT " + "(%d).\n", rval); + } + } } else { /* failed the ISP abort */ ha->flags.online = 1; if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 2b60a27eff0..c5b3c610a32 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -471,6 +471,7 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, mrk24->nport_handle = cpu_to_le16(loop_id); mrk24->lun[1] = LSB(lun); mrk24->lun[2] = MSB(lun); + host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); } else { SET_TARGET_ID(ha, mrk->target, loop_id); mrk->lun = cpu_to_le16(lun); diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 795bf15b1b8..de0613135f7 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -587,6 +587,11 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " "%04x.\n", ha->host_no, mb[1], mb[2], mb[3])); break; + + case MBA_TRACE_NOTIFICATION: + DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", + ha->host_no, mb[1], mb[2])); + break; } } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index ec7ebb6037e..65cbe2f5eea 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -744,7 +744,6 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = to_qla_host(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; - srb_t *sp; int ret; unsigned int id, lun; unsigned long serial; @@ -755,8 +754,7 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) lun = cmd->device->lun; serial = cmd->serial_number; - sp = (srb_t *) CMD_SP(cmd); - if (!sp || !fcport) + if (!fcport) return ret; qla_printk(KERN_INFO, ha, @@ -875,7 +873,6 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = to_qla_host(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; - srb_t *sp; int ret; unsigned int id, lun; unsigned long serial; @@ -886,8 +883,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) lun = cmd->device->lun; serial = cmd->serial_number; - sp = (srb_t *) CMD_SP(cmd); - if (!sp || !fcport) + if (!fcport) return ret; qla_printk(KERN_INFO, ha, @@ -936,7 +932,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = to_qla_host(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; - srb_t *sp; int ret; unsigned int id, lun; unsigned long serial; @@ -947,8 +942,7 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) lun = cmd->device->lun; serial = cmd->serial_number; - sp = (srb_t *) CMD_SP(cmd); - if (!sp || !fcport) + if (!fcport) return ret; qla_printk(KERN_INFO, ha, @@ -2244,9 +2238,6 @@ qla2x00_do_dpc(void *data) next_loopid = 0; list_for_each_entry(fcport, &ha->fcports, list) { - if (fcport->port_type != FCT_TARGET) - continue; - /* * If the port is not ONLINE then try to login * to it if we haven't run out of retries. diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index d2d68344065..971259032ef 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,9 +7,9 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.01.05-k3" +#define QLA2XXX_VERSION "8.01.07-k1" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 1 -#define QLA_DRIVER_PATCH_VER 5 +#define QLA_DRIVER_PATCH_VER 7 #define QLA_DRIVER_BETA_VER 0 diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c index 03baec2191b..01d40369a8a 100644 --- a/drivers/scsi/sata_via.c +++ b/drivers/scsi/sata_via.c @@ -74,6 +74,7 @@ enum { static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg); static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); +static void vt6420_error_handler(struct ata_port *ap); static const struct pci_device_id svia_pci_tbl[] = { { 0x1106, 0x3149, PCI_ANY_ID, PCI_ANY_ID, 0, 0, vt6420 }, @@ -107,7 +108,38 @@ static struct scsi_host_template svia_sht = { .bios_param = ata_std_bios_param, }; -static const struct ata_port_operations svia_sata_ops = { +static const struct ata_port_operations vt6420_sata_ops = { + .port_disable = ata_port_disable, + + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + + .bmdma_setup = ata_bmdma_setup, + .bmdma_start = ata_bmdma_start, + .bmdma_stop = ata_bmdma_stop, + .bmdma_status = ata_bmdma_status, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + .data_xfer = ata_pio_data_xfer, + + .freeze = ata_bmdma_freeze, + .thaw = ata_bmdma_thaw, + .error_handler = vt6420_error_handler, + .post_internal_cmd = ata_bmdma_post_internal_cmd, + + .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + + .port_start = ata_port_start, + .port_stop = ata_port_stop, + .host_stop = ata_host_stop, +}; + +static const struct ata_port_operations vt6421_sata_ops = { .port_disable = ata_port_disable, .tf_load = ata_tf_load, @@ -141,13 +173,13 @@ static const struct ata_port_operations svia_sata_ops = { .host_stop = ata_host_stop, }; -static struct ata_port_info svia_port_info = { +static struct ata_port_info vt6420_port_info = { .sht = &svia_sht, .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, .pio_mask = 0x1f, .mwdma_mask = 0x07, .udma_mask = 0x7f, - .port_ops = &svia_sata_ops, + .port_ops = &vt6420_sata_ops, }; MODULE_AUTHOR("Jeff Garzik"); @@ -170,6 +202,81 @@ static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) outl(val, ap->ioaddr.scr_addr + (4 * sc_reg)); } +/** + * vt6420_prereset - prereset for vt6420 + * @ap: target ATA port + * + * SCR registers on vt6420 are pieces of shit and may hang the + * whole machine completely if accessed with the wrong timing. + * To avoid such catastrophe, vt6420 doesn't provide generic SCR + * access operations, but uses SStatus and SControl only during + * boot probing in controlled way. + * + * As the old (pre EH update) probing code is proven to work, we + * strictly follow the access pattern. + * + * LOCKING: + * Kernel thread context (may sleep) + * + * RETURNS: + * 0 on success, -errno otherwise. + */ +static int vt6420_prereset(struct ata_port *ap) +{ + struct ata_eh_context *ehc = &ap->eh_context; + unsigned long timeout = jiffies + (HZ * 5); + u32 sstatus, scontrol; + int online; + + /* don't do any SCR stuff if we're not loading */ + if (!ATA_PFLAG_LOADING) + goto skip_scr; + + /* Resume phy. This is the old resume sequence from + * __sata_phy_reset(). + */ + svia_scr_write(ap, SCR_CONTROL, 0x300); + svia_scr_read(ap, SCR_CONTROL); /* flush */ + + /* wait for phy to become ready, if necessary */ + do { + msleep(200); + if ((svia_scr_read(ap, SCR_STATUS) & 0xf) != 1) + break; + } while (time_before(jiffies, timeout)); + + /* open code sata_print_link_status() */ + sstatus = svia_scr_read(ap, SCR_STATUS); + scontrol = svia_scr_read(ap, SCR_CONTROL); + + online = (sstatus & 0xf) == 0x3; + + ata_port_printk(ap, KERN_INFO, + "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", + online ? "up" : "down", sstatus, scontrol); + + /* SStatus is read one more time */ + svia_scr_read(ap, SCR_STATUS); + + if (!online) { + /* tell EH to bail */ + ehc->i.action &= ~ATA_EH_RESET_MASK; + return 0; + } + + skip_scr: + /* wait for !BSY */ + ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT); + + return 0; +} + +static void vt6420_error_handler(struct ata_port *ap) +{ + return ata_bmdma_drive_eh(ap, vt6420_prereset, ata_std_softreset, + NULL, ata_std_postreset); +} + static const unsigned int svia_bar_sizes[] = { 8, 4, 8, 4, 16, 256 }; @@ -210,7 +317,7 @@ static void vt6421_init_addrs(struct ata_probe_ent *probe_ent, static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev) { struct ata_probe_ent *probe_ent; - struct ata_port_info *ppi = &svia_port_info; + struct ata_port_info *ppi = &vt6420_port_info; probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) @@ -239,7 +346,7 @@ static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev) probe_ent->sht = &svia_sht; probe_ent->host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY; - probe_ent->port_ops = &svia_sata_ops; + probe_ent->port_ops = &vt6421_sata_ops; probe_ent->n_ports = N_PORTS; probe_ent->irq = pdev->irq; probe_ent->irq_flags = IRQF_SHARED; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 6a5b731bd5b..a8ed5a22009 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -460,7 +460,8 @@ static void scsi_eh_done(struct scsi_cmnd *scmd) * Return value: * SUCCESS or FAILED or NEEDS_RETRY **/ -static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense) +static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, + int cmnd_size, int timeout, int copy_sense) { struct scsi_device *sdev = scmd->device; struct Scsi_Host *shost = sdev->host; @@ -490,6 +491,9 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense old_cmd_len = scmd->cmd_len; old_use_sg = scmd->use_sg; + memset(scmd->cmnd, 0, sizeof(scmd->cmnd)); + memcpy(scmd->cmnd, cmnd, cmnd_size); + if (copy_sense) { int gfp_mask = GFP_ATOMIC; @@ -610,8 +614,7 @@ static int scsi_request_sense(struct scsi_cmnd *scmd) static unsigned char generic_sense[6] = {REQUEST_SENSE, 0, 0, 0, 252, 0}; - memcpy(scmd->cmnd, generic_sense, sizeof(generic_sense)); - return scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 1); + return scsi_send_eh_cmnd(scmd, generic_sense, 6, SENSE_TIMEOUT, 1); } /** @@ -736,10 +739,7 @@ static int scsi_eh_tur(struct scsi_cmnd *scmd) int retry_cnt = 1, rtn; retry_tur: - memcpy(scmd->cmnd, tur_command, sizeof(tur_command)); - - - rtn = scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 0); + rtn = scsi_send_eh_cmnd(scmd, tur_command, 6, SENSE_TIMEOUT, 0); SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n", __FUNCTION__, scmd, rtn)); @@ -839,8 +839,8 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd) if (scmd->device->allow_restart) { int rtn; - memcpy(scmd->cmnd, stu_command, sizeof(stu_command)); - rtn = scsi_send_eh_cmnd(scmd, START_UNIT_TIMEOUT, 0); + rtn = scsi_send_eh_cmnd(scmd, stu_command, 6, + START_UNIT_TIMEOUT, 0); if (rtn == SUCCESS) return 0; } diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 7b9e8fa1a4e..2ecd1418857 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -34,6 +34,7 @@ #define ISCSI_SESSION_ATTRS 11 #define ISCSI_CONN_ATTRS 11 #define ISCSI_HOST_ATTRS 0 +#define ISCSI_TRANSPORT_VERSION "1.1-646" struct iscsi_internal { int daemon_pid; @@ -634,13 +635,13 @@ mempool_zone_get_skb(struct mempool_zone *zone) } static int -iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb) +iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb, gfp_t gfp) { unsigned long flags; int rc; skb_get(skb); - rc = netlink_broadcast(nls, skb, 0, 1, GFP_KERNEL); + rc = netlink_broadcast(nls, skb, 0, 1, gfp); if (rc < 0) { mempool_free(skb, zone->pool); printk(KERN_ERR "iscsi: can not broadcast skb (%d)\n", rc); @@ -749,7 +750,7 @@ void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error) ev->r.connerror.cid = conn->cid; ev->r.connerror.sid = iscsi_conn_get_sid(conn); - iscsi_broadcast_skb(conn->z_error, skb); + iscsi_broadcast_skb(conn->z_error, skb, GFP_ATOMIC); dev_printk(KERN_INFO, &conn->dev, "iscsi: detected conn error (%d)\n", error); @@ -895,7 +896,7 @@ int iscsi_if_destroy_session_done(struct iscsi_cls_conn *conn) * this will occur if the daemon is not up, so we just warn * the user and when the daemon is restarted it will handle it */ - rc = iscsi_broadcast_skb(conn->z_pdu, skb); + rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL); if (rc < 0) dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of " "session destruction event. Check iscsi daemon\n"); @@ -958,7 +959,7 @@ int iscsi_if_create_session_done(struct iscsi_cls_conn *conn) * this will occur if the daemon is not up, so we just warn * the user and when the daemon is restarted it will handle it */ - rc = iscsi_broadcast_skb(conn->z_pdu, skb); + rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL); if (rc < 0) dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of " "session creation event. Check iscsi daemon\n"); @@ -1613,6 +1614,9 @@ static __init int iscsi_transport_init(void) { int err; + printk(KERN_INFO "Loading iSCSI transport class v%s.", + ISCSI_TRANSPORT_VERSION); + err = class_register(&iscsi_transport_class); if (err) return err; @@ -1678,3 +1682,4 @@ MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, " "Alex Aizman <itn780@yahoo.com>"); MODULE_DESCRIPTION("iSCSI Transport Interface"); MODULE_LICENSE("GPL"); +MODULE_VERSION(ISCSI_TRANSPORT_VERSION); diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 65eef33846b..34f9343ed0a 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -18,8 +18,8 @@ * */ -static int sg_version_num = 30533; /* 2 digits for each component */ -#define SG_VERSION_STR "3.5.33" +static int sg_version_num = 30534; /* 2 digits for each component */ +#define SG_VERSION_STR "3.5.34" /* * D. P. Gilbert (dgilbert@interlog.com, dougg@triode.net.au), notes: @@ -60,7 +60,7 @@ static int sg_version_num = 30533; /* 2 digits for each component */ #ifdef CONFIG_SCSI_PROC_FS #include <linux/proc_fs.h> -static char *sg_version_date = "20050908"; +static char *sg_version_date = "20060818"; static int sg_proc_init(void); static void sg_proc_cleanup(void); @@ -1164,7 +1164,7 @@ sg_vma_nopage(struct vm_area_struct *vma, unsigned long addr, int *type) len = vma->vm_end - sa; len = (len < sg->length) ? len : sg->length; if (offset < len) { - page = sg->page; + page = virt_to_page(page_address(sg->page) + offset); get_page(page); /* increment page count */ break; } diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 8c505076c0e..739d3ef46a4 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -2084,7 +2084,7 @@ static struct pci_device_id sym2_id_table[] __devinitdata = { { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, + PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c index dc673e1b6fd..cfe20f73043 100644 --- a/drivers/serial/sunsab.c +++ b/drivers/serial/sunsab.c @@ -886,6 +886,15 @@ static int sunsab_console_setup(struct console *con, char *options) unsigned long flags; unsigned int baud, quot; + /* + * The console framework calls us for each and every port + * registered. Defer the console setup until the requested + * port has been properly discovered. A bit of a hack, + * though... + */ + if (up->port.type != PORT_SUNSAB) + return -1; + printk("Console: ttyS%d (SAB82532)\n", (sunsab_reg.minor - 64) + con->index); diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c index 47bc3d57e01..d34f336d53d 100644 --- a/drivers/serial/sunzilog.c +++ b/drivers/serial/sunzilog.c @@ -1146,6 +1146,9 @@ static int __init sunzilog_console_setup(struct console *con, char *options) unsigned long flags; int baud, brg; + if (up->port.type != PORT_SUNZILOG) + return -1; + printk(KERN_INFO "Console: ttyS%d (SunZilog zs%d)\n", (sunzilog_reg.minor - 64) + con->index, con->index); diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c index a4062a6adbb..9c46746d5d0 100644 --- a/drivers/usb/misc/cypress_cy7c63.c +++ b/drivers/usb/misc/cypress_cy7c63.c @@ -208,7 +208,7 @@ static int cypress_probe(struct usb_interface *interface, /* allocate memory for our device state and initialize it */ dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { - dev_err(&dev->udev->dev, "Out of memory!\n"); + dev_err(&interface->dev, "Out of memory!\n"); goto error; } diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index efbbc0adb89..65e4d046951 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -79,7 +79,6 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, - { USB_DEVICE(OTI_VENDOR_ID, OTI_PRODUCT_ID) }, { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, { } /* Terminating entry */ diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index a692ac66ca6..55195e76eb6 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -82,10 +82,6 @@ #define SPEEDDRAGON_VENDOR_ID 0x0e55 #define SPEEDDRAGON_PRODUCT_ID 0x110b -/* Ours Technology Inc DKU-5 clone, chipset: Prolific Technology Inc */ -#define OTI_VENDOR_ID 0x0ea0 -#define OTI_PRODUCT_ID 0x6858 - /* DATAPILOT Universal-2 Phone Cable */ #define DATAPILOT_U2_VENDOR_ID 0x0731 #define DATAPILOT_U2_PRODUCT_ID 0x2003 diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index fd158e063c0..4a803d69fa3 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1261,7 +1261,7 @@ UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000, * Tested on hardware version 1.10. * Entry is needed only for the initializer function override. */ -UNUSUAL_DEV( 0x1019, 0x0c55, 0x0000, 0x9999, +UNUSUAL_DEV( 0x1019, 0x0c55, 0x0110, 0x0110, "Desknote", "UCR-61S2B", US_SC_DEVICE, US_PR_DEVICE, usb_stor_ucr61s2b_init, diff --git a/drivers/video/imacfb.c b/drivers/video/imacfb.c index b485bece5fc..18ea4a54910 100644 --- a/drivers/video/imacfb.c +++ b/drivers/video/imacfb.c @@ -71,10 +71,10 @@ static int set_system(struct dmi_system_id *id) static struct dmi_system_id __initdata dmi_system_table[] = { { set_system, "iMac4,1", { DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), - DMI_MATCH(DMI_BIOS_VERSION,"iMac4,1") }, (void*)M_I17}, + DMI_MATCH(DMI_PRODUCT_NAME,"iMac4,1") }, (void*)M_I17}, { set_system, "MacBookPro1,1", { DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), - DMI_MATCH(DMI_BIOS_VERSION,"MacBookPro1,1") }, (void*)M_I17}, + DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro1,1") }, (void*)M_I17}, { set_system, "MacBook1,1", { DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."), DMI_MATCH(DMI_PRODUCT_NAME,"MacBook1,1")}, (void *)M_MACBOOK}, diff --git a/drivers/video/matrox/g450_pll.c b/drivers/video/matrox/g450_pll.c index 440272ad10e..7c76e079ca7 100644 --- a/drivers/video/matrox/g450_pll.c +++ b/drivers/video/matrox/g450_pll.c @@ -331,7 +331,15 @@ static int __g450_setclk(WPMINFO unsigned int fout, unsigned int pll, tmp |= M1064_XPIXCLKCTRL_PLL_UP; } matroxfb_DAC_out(PMINFO M1064_XPIXCLKCTRL, tmp); +#ifdef __powerpc__ + /* This is necessary to avoid jitter on PowerPC + * (OpenFirmware) systems, but apparently + * introduces jitter, at least on a x86-64 + * using DVI. + * A simple workaround is disable for non-PPC. + */ matroxfb_DAC_out(PMINFO M1064_XDVICLKCTRL, 0); +#endif /* __powerpc__ */ matroxfb_DAC_out(PMINFO M1064_XPWRCTRL, xpwrctrl); matroxfb_DAC_unlock_irqrestore(flags); |