From a012370322eafee642369784ff71afe81f5a8592 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 13 Dec 2005 14:49:31 +0900 Subject: [PATCH] [PATCH] libata: use ata_exec_internal() This patch converts all users of libata internal commands to use ata_exec_internal(). Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 145 +++++++++++-------------------------- 1 file changed, 44 insertions(+), 101 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index de80abeab065..01070366bb19 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -1198,9 +1198,8 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device) u16 tmp; unsigned long xfer_modes; unsigned int using_edd; - DECLARE_COMPLETION(wait); - struct ata_queued_cmd *qc; - unsigned long flags; + struct ata_taskfile tf; + unsigned int err_mask; int rc; if (!ata_dev_present(dev)) { @@ -1221,40 +1220,26 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device) ata_dev_select(ap, device, 1, 1); /* select device 0/1 */ - qc = ata_qc_new_init(ap, dev); - BUG_ON(qc == NULL); - - ata_sg_init_one(qc, dev->id, sizeof(dev->id)); - qc->dma_dir = DMA_FROM_DEVICE; - qc->tf.protocol = ATA_PROT_PIO; - qc->nsect = 1; - retry: + ata_tf_init(ap, &tf, device); + if (dev->class == ATA_DEV_ATA) { - qc->tf.command = ATA_CMD_ID_ATA; + tf.command = ATA_CMD_ID_ATA; DPRINTK("do ATA identify\n"); } else { - qc->tf.command = ATA_CMD_ID_ATAPI; + tf.command = ATA_CMD_ID_ATAPI; DPRINTK("do ATAPI identify\n"); } - qc->waiting = &wait; - qc->complete_fn = ata_qc_complete_noop; - - spin_lock_irqsave(&ap->host_set->lock, flags); - rc = ata_qc_issue(qc); - spin_unlock_irqrestore(&ap->host_set->lock, flags); + tf.protocol = ATA_PROT_PIO; - if (rc) - goto err_out; - else - ata_qc_wait_err(qc, &wait); + err_mask = ata_exec_internal(ap, dev, &tf, DMA_FROM_DEVICE, + dev->id, sizeof(dev->id)); - spin_lock_irqsave(&ap->host_set->lock, flags); - ap->ops->tf_read(ap, &qc->tf); - spin_unlock_irqrestore(&ap->host_set->lock, flags); + if (err_mask) { + if (err_mask & ~AC_ERR_DEV) + goto err_out; - if (qc->tf.command & ATA_ERR) { /* * arg! EDD works for all test cases, but seems to return * the ATA signature for some ATAPI devices. Until the @@ -1267,14 +1252,9 @@ retry: * to have this problem. */ if ((using_edd) && (dev->class == ATA_DEV_ATA)) { - u8 err = qc->tf.feature; + u8 err = tf.feature; if (err & ATA_ABORTED) { dev->class = ATA_DEV_ATAPI; - qc->cursg = 0; - qc->cursg_ofs = 0; - qc->cursect = 0; - qc->nsect = 1; - qc->err_mask = 0; goto retry; } } @@ -2378,34 +2358,23 @@ static int ata_choose_xfer_mode(const struct ata_port *ap, static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev) { - DECLARE_COMPLETION(wait); - struct ata_queued_cmd *qc; - int rc; - unsigned long flags; + struct ata_taskfile tf; /* set up set-features taskfile */ DPRINTK("set features - xfer mode\n"); - qc = ata_qc_new_init(ap, dev); - BUG_ON(qc == NULL); - - qc->tf.command = ATA_CMD_SET_FEATURES; - qc->tf.feature = SETFEATURES_XFER; - qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; - qc->tf.protocol = ATA_PROT_NODATA; - qc->tf.nsect = dev->xfer_mode; - - qc->waiting = &wait; - qc->complete_fn = ata_qc_complete_noop; - - spin_lock_irqsave(&ap->host_set->lock, flags); - rc = ata_qc_issue(qc); - spin_unlock_irqrestore(&ap->host_set->lock, flags); + ata_tf_init(ap, &tf, dev->devno); + tf.command = ATA_CMD_SET_FEATURES; + tf.feature = SETFEATURES_XFER; + tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; + tf.protocol = ATA_PROT_NODATA; + tf.nsect = dev->xfer_mode; - if (rc) + if (ata_exec_internal(ap, dev, &tf, DMA_NONE, NULL, 0)) { + printk(KERN_ERR "ata%u: failed to set xfermode, disabled\n", + ap->id); ata_port_disable(ap); - else - ata_qc_wait_err(qc, &wait); + } DPRINTK("EXIT\n"); } @@ -2420,41 +2389,25 @@ static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev) static void ata_dev_reread_id(struct ata_port *ap, struct ata_device *dev) { - DECLARE_COMPLETION(wait); - struct ata_queued_cmd *qc; - unsigned long flags; - int rc; - - qc = ata_qc_new_init(ap, dev); - BUG_ON(qc == NULL); + struct ata_taskfile tf; - ata_sg_init_one(qc, dev->id, sizeof(dev->id)); - qc->dma_dir = DMA_FROM_DEVICE; + ata_tf_init(ap, &tf, dev->devno); if (dev->class == ATA_DEV_ATA) { - qc->tf.command = ATA_CMD_ID_ATA; + tf.command = ATA_CMD_ID_ATA; DPRINTK("do ATA identify\n"); } else { - qc->tf.command = ATA_CMD_ID_ATAPI; + tf.command = ATA_CMD_ID_ATAPI; DPRINTK("do ATAPI identify\n"); } - qc->tf.flags |= ATA_TFLAG_DEVICE; - qc->tf.protocol = ATA_PROT_PIO; - qc->nsect = 1; - - qc->waiting = &wait; - qc->complete_fn = ata_qc_complete_noop; - - spin_lock_irqsave(&ap->host_set->lock, flags); - rc = ata_qc_issue(qc); - spin_unlock_irqrestore(&ap->host_set->lock, flags); + tf.flags |= ATA_TFLAG_DEVICE; + tf.protocol = ATA_PROT_PIO; - if (rc) + if (ata_exec_internal(ap, dev, &tf, DMA_FROM_DEVICE, + dev->id, sizeof(dev->id))) goto err_out; - ata_qc_wait_err(qc, &wait); - swap_buf_le16(dev->id, ATA_ID_WORDS); ata_dump_id(dev); @@ -2463,6 +2416,7 @@ static void ata_dev_reread_id(struct ata_port *ap, struct ata_device *dev) return; err_out: + printk(KERN_ERR "ata%u: failed to reread ID, disabled\n", ap->id); ata_port_disable(ap); } @@ -2476,10 +2430,7 @@ err_out: static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev) { - DECLARE_COMPLETION(wait); - struct ata_queued_cmd *qc; - int rc; - unsigned long flags; + struct ata_taskfile tf; u16 sectors = dev->id[6]; u16 heads = dev->id[3]; @@ -2490,26 +2441,18 @@ static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev) /* set up init dev params taskfile */ DPRINTK("init dev params \n"); - qc = ata_qc_new_init(ap, dev); - BUG_ON(qc == NULL); - - qc->tf.command = ATA_CMD_INIT_DEV_PARAMS; - qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; - qc->tf.protocol = ATA_PROT_NODATA; - qc->tf.nsect = sectors; - qc->tf.device |= (heads - 1) & 0x0f; /* max head = num. of heads - 1 */ - - qc->waiting = &wait; - qc->complete_fn = ata_qc_complete_noop; - - spin_lock_irqsave(&ap->host_set->lock, flags); - rc = ata_qc_issue(qc); - spin_unlock_irqrestore(&ap->host_set->lock, flags); + ata_tf_init(ap, &tf, dev->devno); + tf.command = ATA_CMD_INIT_DEV_PARAMS; + tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; + tf.protocol = ATA_PROT_NODATA; + tf.nsect = sectors; + tf.device |= (heads - 1) & 0x0f; /* max head = num. of heads - 1 */ - if (rc) + if (ata_exec_internal(ap, dev, &tf, DMA_NONE, NULL, 0)) { + printk(KERN_ERR "ata%u: failed to init parameters, disabled\n", + ap->id); ata_port_disable(ap); - else - ata_qc_wait_err(qc, &wait); + } DPRINTK("EXIT\n"); } -- 2.39.2