diff options
Diffstat (limited to 'drivers/message/i2o/exec-osm.c')
| -rw-r--r-- | drivers/message/i2o/exec-osm.c | 156 |
1 files changed, 90 insertions, 66 deletions
diff --git a/drivers/message/i2o/exec-osm.c b/drivers/message/i2o/exec-osm.c index 7bd4d85d0b4..a3970e56ae5 100644 --- a/drivers/message/i2o/exec-osm.c +++ b/drivers/message/i2o/exec-osm.c @@ -15,11 +15,11 @@ * * Fixes/additions: * Philipp Rumpf - * Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI> - * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI> + * Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI> + * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI> * Deepak Saxena <deepak@plexity.net> * Boji T Kannanthanam <boji.t.kannanthanam@intel.com> - * Alan Cox <alan@redhat.com>: + * Alan Cox <alan@lxorguk.ukuu.org.uk>: * Ported to Linux 2.5. * Markus Lidel <Markus.Lidel@shadowconnect.com>: * Minor fixes for 2.6. @@ -41,8 +41,6 @@ struct i2o_driver i2o_exec_driver; -static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind); - /* global wait list for POST WAIT */ static LIST_HEAD(i2o_exec_wait_list); @@ -94,8 +92,8 @@ static struct i2o_exec_wait *i2o_exec_wait_alloc(void) }; /** - * i2o_exec_wait_free - Free a i2o_exec_wait struct - * @i2o_exec_wait: I2O wait data which should be cleaned up + * i2o_exec_wait_free - Free an i2o_exec_wait struct + * @wait: I2O wait data which should be cleaned up */ static void i2o_exec_wait_free(struct i2o_exec_wait *wait) { @@ -105,7 +103,7 @@ static void i2o_exec_wait_free(struct i2o_exec_wait *wait) /** * i2o_msg_post_wait_mem - Post and wait a message with DMA buffers * @c: controller - * @m: message to post + * @msg: message to post * @timeout: time in seconds to wait * @dma: i2o_dma struct of the DMA buffer to free on failure * @@ -124,15 +122,17 @@ static void i2o_exec_wait_free(struct i2o_exec_wait *wait) int i2o_msg_post_wait_mem(struct i2o_controller *c, struct i2o_message *msg, unsigned long timeout, struct i2o_dma *dma) { - DECLARE_WAIT_QUEUE_HEAD(wq); + DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); struct i2o_exec_wait *wait; static u32 tcntxt = 0x80000000; - long flags; + unsigned long flags; int rc = 0; wait = i2o_exec_wait_alloc(); - if (!wait) + if (!wait) { + i2o_msg_nop(c, msg); return -ENOMEM; + } if (tcntxt == 0xffffffff) tcntxt = 0x80000000; @@ -269,6 +269,7 @@ static int i2o_msg_post_wait_complete(struct i2o_controller *c, u32 m, /** * i2o_exec_show_vendor_id - Displays Vendor ID of controller * @d: device of which the Vendor ID should be displayed + * @attr: device_attribute to display * @buf: buffer into which the Vendor ID should be printed * * Returns number of bytes printed into buffer. @@ -290,6 +291,7 @@ static ssize_t i2o_exec_show_vendor_id(struct device *d, /** * i2o_exec_show_product_id - Displays Product ID of controller * @d: device of which the Product ID should be displayed + * @attr: device_attribute to display * @buf: buffer into which the Product ID should be printed * * Returns number of bytes printed into buffer. @@ -325,13 +327,26 @@ static DEVICE_ATTR(product_id, S_IRUGO, i2o_exec_show_product_id, NULL); static int i2o_exec_probe(struct device *dev) { struct i2o_device *i2o_dev = to_i2o_device(dev); + int rc; + + rc = i2o_event_register(i2o_dev, &i2o_exec_driver, 0, 0xffffffff); + if (rc) goto err_out; - i2o_event_register(i2o_dev, &i2o_exec_driver, 0, 0xffffffff); + rc = device_create_file(dev, &dev_attr_vendor_id); + if (rc) goto err_evtreg; + rc = device_create_file(dev, &dev_attr_product_id); + if (rc) goto err_vid; - device_create_file(dev, &dev_attr_vendor_id); - device_create_file(dev, &dev_attr_product_id); + i2o_dev->iop->exec = i2o_dev; return 0; + +err_vid: + device_remove_file(dev, &dev_attr_vendor_id); +err_evtreg: + i2o_event_register(to_i2o_device(dev), &i2o_exec_driver, 0, 0); +err_out: + return rc; }; /** @@ -352,16 +367,69 @@ static int i2o_exec_remove(struct device *dev) return 0; }; +#ifdef CONFIG_I2O_LCT_NOTIFY_ON_CHANGES +/** + * i2o_exec_lct_notify - Send a asynchronus LCT NOTIFY request + * @c: I2O controller to which the request should be send + * @change_ind: change indicator + * + * This function sends a LCT NOTIFY request to the I2O controller with + * the change indicator change_ind. If the change_ind == 0 the controller + * replies immediately after the request. If change_ind > 0 the reply is + * send after change indicator of the LCT is > change_ind. + */ +static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind) +{ + i2o_status_block *sb = c->status_block.virt; + struct device *dev; + struct i2o_message *msg; + + mutex_lock(&c->lct_lock); + + dev = &c->pdev->dev; + + if (i2o_dma_realloc(dev, &c->dlct, + le32_to_cpu(sb->expected_lct_size))) { + mutex_unlock(&c->lct_lock); + return -ENOMEM; + } + + msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); + if (IS_ERR(msg)) { + mutex_unlock(&c->lct_lock); + return PTR_ERR(msg); + } + + msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6); + msg->u.head[1] = cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 | + ADAPTER_TID); + msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context); + msg->u.s.tcntxt = cpu_to_le32(0x00000000); + msg->body[0] = cpu_to_le32(0xffffffff); + msg->body[1] = cpu_to_le32(change_ind); + msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len); + msg->body[3] = cpu_to_le32(c->dlct.phys); + + i2o_msg_post(c, msg); + + mutex_unlock(&c->lct_lock); + + return 0; +} +#endif + /** * i2o_exec_lct_modified - Called on LCT NOTIFY reply - * @c: I2O controller on which the LCT has modified + * @_work: work struct for a specific controller * * This function handles asynchronus LCT NOTIFY replies. It parses the * new LCT and if the buffer for the LCT was to small sends a LCT NOTIFY * again, otherwise send LCT NOTIFY to get informed on next LCT change. */ -static void i2o_exec_lct_modified(struct i2o_exec_lct_notify_work *work) +static void i2o_exec_lct_modified(struct work_struct *_work) { + struct i2o_exec_lct_notify_work *work = + container_of(_work, struct i2o_exec_lct_notify_work, work); u32 change_ind = 0; struct i2o_controller *c = work->c; @@ -428,8 +496,7 @@ static int i2o_exec_reply(struct i2o_controller *c, u32 m, work->c = c; - INIT_WORK(&work->work, (void (*)(void *))i2o_exec_lct_modified, - work); + INIT_WORK(&work->work, i2o_exec_lct_modified); queue_work(i2o_exec_driver.event_queue, &work->work); return 1; } @@ -449,13 +516,15 @@ static int i2o_exec_reply(struct i2o_controller *c, u32 m, /** * i2o_exec_event - Event handling function - * @evt: Event which occurs + * @work: Work item in occurring event * * Handles events send by the Executive device. At the moment does not do * anything useful. */ -static void i2o_exec_event(struct i2o_event *evt) +static void i2o_exec_event(struct work_struct *work) { + struct i2o_event *evt = container_of(work, struct i2o_event, work); + if (likely(evt->i2o_dev)) osm_debug("Event received from device: %d\n", evt->i2o_dev->lct_data.tid); @@ -505,51 +574,6 @@ int i2o_exec_lct_get(struct i2o_controller *c) return rc; } -/** - * i2o_exec_lct_notify - Send a asynchronus LCT NOTIFY request - * @c: I2O controller to which the request should be send - * @change_ind: change indicator - * - * This function sends a LCT NOTIFY request to the I2O controller with - * the change indicator change_ind. If the change_ind == 0 the controller - * replies immediately after the request. If change_ind > 0 the reply is - * send after change indicator of the LCT is > change_ind. - */ -static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind) -{ - i2o_status_block *sb = c->status_block.virt; - struct device *dev; - struct i2o_message *msg; - - down(&c->lct_lock); - - dev = &c->pdev->dev; - - if (i2o_dma_realloc - (dev, &c->dlct, le32_to_cpu(sb->expected_lct_size), GFP_KERNEL)) - return -ENOMEM; - - msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); - if (IS_ERR(msg)) - return PTR_ERR(msg); - - msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6); - msg->u.head[1] = cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 | - ADAPTER_TID); - msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context); - msg->u.s.tcntxt = cpu_to_le32(0x00000000); - msg->body[0] = cpu_to_le32(0xffffffff); - msg->body[1] = cpu_to_le32(change_ind); - msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len); - msg->body[3] = cpu_to_le32(c->dlct.phys); - - i2o_msg_post(c, msg); - - up(&c->lct_lock); - - return 0; -}; - /* Exec OSM driver struct */ struct i2o_driver i2o_exec_driver = { .name = OSM_NAME, @@ -579,7 +603,7 @@ int __init i2o_exec_init(void) * * Unregisters the Exec OSM from the I2O core. */ -void __exit i2o_exec_exit(void) +void i2o_exec_exit(void) { i2o_driver_unregister(&i2o_exec_driver); }; |