diff options
| -rw-r--r-- | drivers/ata/libata-sff.c | 290 | ||||
| -rw-r--r-- | drivers/ata/pata_atiixp.c | 2 | ||||
| -rw-r--r-- | drivers/ata/pata_cs5520.c | 2 | ||||
| -rw-r--r-- | drivers/ata/pata_cs5530.c | 2 | ||||
| -rw-r--r-- | drivers/ata/pata_sc1200.c | 2 | ||||
| -rw-r--r-- | drivers/ata/pdc_adma.c | 4 | ||||
| -rw-r--r-- | drivers/ata/sata_nv.c | 4 | ||||
| -rw-r--r-- | drivers/ata/sata_qstor.c | 4 | ||||
| -rw-r--r-- | include/linux/libata.h | 4 |
9 files changed, 156 insertions, 158 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index aa378c04ed87..a58693bdde9d 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -45,7 +45,7 @@ static struct workqueue_struct *ata_sff_wq; const struct ata_port_operations ata_sff_port_ops = { .inherits = &ata_base_port_ops, - .qc_prep = ata_sff_qc_prep, + .qc_prep = ata_noop_qc_prep, .qc_issue = ata_sff_qc_issue, .qc_fill_rtf = ata_sff_qc_fill_rtf, @@ -71,149 +71,6 @@ const struct ata_port_operations ata_sff_port_ops = { EXPORT_SYMBOL_GPL(ata_sff_port_ops); /** - * ata_fill_sg - Fill PCI IDE PRD table - * @qc: Metadata associated with taskfile to be transferred - * - * Fill PCI IDE PRD (scatter-gather) table with segments - * associated with the current disk command. - * - * LOCKING: - * spin_lock_irqsave(host lock) - * - */ -static void ata_fill_sg(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct scatterlist *sg; - unsigned int si, pi; - - pi = 0; - for_each_sg(qc->sg, sg, qc->n_elem, si) { - u32 addr, offset; - u32 sg_len, len; - - /* determine if physical DMA addr spans 64K boundary. - * Note h/w doesn't support 64-bit, so we unconditionally - * truncate dma_addr_t to u32. - */ - addr = (u32) sg_dma_address(sg); - sg_len = sg_dma_len(sg); - - while (sg_len) { - offset = addr & 0xffff; - len = sg_len; - if ((offset + sg_len) > 0x10000) - len = 0x10000 - offset; - - ap->prd[pi].addr = cpu_to_le32(addr); - ap->prd[pi].flags_len = cpu_to_le32(len & 0xffff); - VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", pi, addr, len); - - pi++; - sg_len -= len; - addr += len; - } - } - - ap->prd[pi - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT); -} - -/** - * ata_fill_sg_dumb - Fill PCI IDE PRD table - * @qc: Metadata associated with taskfile to be transferred - * - * Fill PCI IDE PRD (scatter-gather) table with segments - * associated with the current disk command. Perform the fill - * so that we avoid writing any length 64K records for - * controllers that don't follow the spec. - * - * LOCKING: - * spin_lock_irqsave(host lock) - * - */ -static void ata_fill_sg_dumb(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct scatterlist *sg; - unsigned int si, pi; - - pi = 0; - for_each_sg(qc->sg, sg, qc->n_elem, si) { - u32 addr, offset; - u32 sg_len, len, blen; - - /* determine if physical DMA addr spans 64K boundary. - * Note h/w doesn't support 64-bit, so we unconditionally - * truncate dma_addr_t to u32. - */ - addr = (u32) sg_dma_address(sg); - sg_len = sg_dma_len(sg); - - while (sg_len) { - offset = addr & 0xffff; - len = sg_len; - if ((offset + sg_len) > 0x10000) - len = 0x10000 - offset; - - blen = len & 0xffff; - ap->prd[pi].addr = cpu_to_le32(addr); - if (blen == 0) { - /* Some PATA chipsets like the CS5530 can't - cope with 0x0000 meaning 64K as the spec - says */ - ap->prd[pi].flags_len = cpu_to_le32(0x8000); - blen = 0x8000; - ap->prd[++pi].addr = cpu_to_le32(addr + 0x8000); - } - ap->prd[pi].flags_len = cpu_to_le32(blen); - VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", pi, addr, len); - - pi++; - sg_len -= len; - addr += len; - } - } - - ap->prd[pi - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT); -} - -/** - * ata_sff_qc_prep - Prepare taskfile for submission - * @qc: Metadata associated with taskfile to be prepared - * - * Prepare ATA taskfile for submission. - * - * LOCKING: - * spin_lock_irqsave(host lock) - */ -void ata_sff_qc_prep(struct ata_queued_cmd *qc) -{ - if (!(qc->flags & ATA_QCFLAG_DMAMAP)) - return; - - ata_fill_sg(qc); -} -EXPORT_SYMBOL_GPL(ata_sff_qc_prep); - -/** - * ata_sff_dumb_qc_prep - Prepare taskfile for submission - * @qc: Metadata associated with taskfile to be prepared - * - * Prepare ATA taskfile for submission. - * - * LOCKING: - * spin_lock_irqsave(host lock) - */ -void ata_sff_dumb_qc_prep(struct ata_queued_cmd *qc) -{ - if (!(qc->flags & ATA_QCFLAG_DMAMAP)) - return; - - ata_fill_sg_dumb(qc); -} -EXPORT_SYMBOL_GPL(ata_sff_dumb_qc_prep); - -/** * ata_sff_check_status - Read device status reg & clear interrupt * @ap: port where the device is * @@ -2760,6 +2617,8 @@ const struct ata_port_operations ata_bmdma_port_ops = { .error_handler = ata_bmdma_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, + .qc_prep = ata_bmdma_qc_prep, + .bmdma_setup = ata_bmdma_setup, .bmdma_start = ata_bmdma_start, .bmdma_stop = ata_bmdma_stop, @@ -2778,6 +2637,149 @@ const struct ata_port_operations ata_bmdma32_port_ops = { EXPORT_SYMBOL_GPL(ata_bmdma32_port_ops); /** + * ata_bmdma_fill_sg - Fill PCI IDE PRD table + * @qc: Metadata associated with taskfile to be transferred + * + * Fill PCI IDE PRD (scatter-gather) table with segments + * associated with the current disk command. + * + * LOCKING: + * spin_lock_irqsave(host lock) + * + */ +static void ata_bmdma_fill_sg(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + struct scatterlist *sg; + unsigned int si, pi; + + pi = 0; + for_each_sg(qc->sg, sg, qc->n_elem, si) { + u32 addr, offset; + u32 sg_len, len; + + /* determine if physical DMA addr spans 64K boundary. + * Note h/w doesn't support 64-bit, so we unconditionally + * truncate dma_addr_t to u32. + */ + addr = (u32) sg_dma_address(sg); + sg_len = sg_dma_len(sg); + + while (sg_len) { + offset = addr & 0xffff; + len = sg_len; + if ((offset + sg_len) > 0x10000) + len = 0x10000 - offset; + + ap->prd[pi].addr = cpu_to_le32(addr); + ap->prd[pi].flags_len = cpu_to_le32(len & 0xffff); + VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", pi, addr, len); + + pi++; + sg_len -= len; + addr += len; + } + } + + ap->prd[pi - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT); +} + +/** + * ata_bmdma_fill_sg_dumb - Fill PCI IDE PRD table + * @qc: Metadata associated with taskfile to be transferred + * + * Fill PCI IDE PRD (scatter-gather) table with segments + * associated with the current disk command. Perform the fill + * so that we avoid writing any length 64K records for + * controllers that don't follow the spec. + * + * LOCKING: + * spin_lock_irqsave(host lock) + * + */ +static void ata_bmdma_fill_sg_dumb(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + struct scatterlist *sg; + unsigned int si, pi; + + pi = 0; + for_each_sg(qc->sg, sg, qc->n_elem, si) { + u32 addr, offset; + u32 sg_len, len, blen; + + /* determine if physical DMA addr spans 64K boundary. + * Note h/w doesn't support 64-bit, so we unconditionally + * truncate dma_addr_t to u32. + */ + addr = (u32) sg_dma_address(sg); + sg_len = sg_dma_len(sg); + + while (sg_len) { + offset = addr & 0xffff; + len = sg_len; + if ((offset + sg_len) > 0x10000) + len = 0x10000 - offset; + + blen = len & 0xffff; + ap->prd[pi].addr = cpu_to_le32(addr); + if (blen == 0) { + /* Some PATA chipsets like the CS5530 can't + cope with 0x0000 meaning 64K as the spec + says */ + ap->prd[pi].flags_len = cpu_to_le32(0x8000); + blen = 0x8000; + ap->prd[++pi].addr = cpu_to_le32(addr + 0x8000); + } + ap->prd[pi].flags_len = cpu_to_le32(blen); + VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", pi, addr, len); + + pi++; + sg_len -= len; + addr += len; + } + } + + ap->prd[pi - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT); +} + +/** + * ata_bmdma_qc_prep - Prepare taskfile for submission + * @qc: Metadata associated with taskfile to be prepared + * + * Prepare ATA taskfile for submission. + * + * LOCKING: + * spin_lock_irqsave(host lock) + */ +void ata_bmdma_qc_prep(struct ata_queued_cmd *qc) +{ + if (!(qc->flags & ATA_QCFLAG_DMAMAP)) + return; + + ata_bmdma_fill_sg(qc); +} +EXPORT_SYMBOL_GPL(ata_bmdma_qc_prep); + +/** + * ata_bmdma_dumb_qc_prep - Prepare taskfile for submission + * @qc: Metadata associated with taskfile to be prepared + * + * Prepare ATA taskfile for submission. + * + * LOCKING: + * spin_lock_irqsave(host lock) + */ +void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc) +{ + if (!(qc->flags & ATA_QCFLAG_DMAMAP)) + return; + + ata_bmdma_fill_sg_dumb(qc); +} +EXPORT_SYMBOL_GPL(ata_bmdma_dumb_qc_prep); + +/** * ata_bmdma_error_handler - Stock error handler for BMDMA controller * @ap: port to handle error for * diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index cbaf2eddac6b..44d88b380ddd 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -217,7 +217,7 @@ static struct scsi_host_template atiixp_sht = { static struct ata_port_operations atiixp_port_ops = { .inherits = &ata_bmdma_port_ops, - .qc_prep = ata_sff_dumb_qc_prep, + .qc_prep = ata_bmdma_dumb_qc_prep, .bmdma_start = atiixp_bmdma_start, .bmdma_stop = atiixp_bmdma_stop, diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c index 95ebdac517f2..17c5f346ff01 100644 --- a/drivers/ata/pata_cs5520.c +++ b/drivers/ata/pata_cs5520.c @@ -110,7 +110,7 @@ static struct scsi_host_template cs5520_sht = { static struct ata_port_operations cs5520_port_ops = { .inherits = &ata_bmdma_port_ops, - .qc_prep = ata_sff_dumb_qc_prep, + .qc_prep = ata_bmdma_dumb_qc_prep, .cable_detect = ata_cable_40wire, .set_piomode = cs5520_set_piomode, }; diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c index 738ad2e14a97..4b9a66f18de6 100644 --- a/drivers/ata/pata_cs5530.c +++ b/drivers/ata/pata_cs5530.c @@ -167,7 +167,7 @@ static struct scsi_host_template cs5530_sht = { static struct ata_port_operations cs5530_port_ops = { .inherits = &ata_bmdma_port_ops, - .qc_prep = ata_sff_dumb_qc_prep, + .qc_prep = ata_bmdma_dumb_qc_prep, .qc_issue = cs5530_qc_issue, .cable_detect = ata_cable_40wire, diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c index dfecc6f964b0..599e648a722f 100644 --- a/drivers/ata/pata_sc1200.c +++ b/drivers/ata/pata_sc1200.c @@ -209,7 +209,7 @@ static struct scsi_host_template sc1200_sht = { static struct ata_port_operations sc1200_port_ops = { .inherits = &ata_bmdma_port_ops, - .qc_prep = ata_sff_dumb_qc_prep, + .qc_prep = ata_bmdma_dumb_qc_prep, .qc_issue = sc1200_qc_issue, .qc_defer = sc1200_qc_defer, .cable_detect = ata_cable_40wire, diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c index bb4f838655b6..adbe0426c8f0 100644 --- a/drivers/ata/pdc_adma.c +++ b/drivers/ata/pdc_adma.c @@ -324,10 +324,8 @@ static void adma_qc_prep(struct ata_queued_cmd *qc) VPRINTK("ENTER\n"); adma_enter_reg_mode(qc->ap); - if (qc->tf.protocol != ATA_PROT_DMA) { - ata_sff_qc_prep(qc); + if (qc->tf.protocol != ATA_PROT_DMA) return; - } buf[i++] = 0; /* Response flags */ buf[i++] = 0; /* reserved */ diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 64e99824d8c1..7a283d5d68f3 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -1409,7 +1409,7 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc) BUG_ON(!(pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) && (qc->flags & ATA_QCFLAG_DMAMAP)); nv_adma_register_mode(qc->ap); - ata_sff_qc_prep(qc); + ata_bmdma_qc_prep(qc); return; } @@ -2012,7 +2012,7 @@ static int nv_swncq_port_start(struct ata_port *ap) static void nv_swncq_qc_prep(struct ata_queued_cmd *qc) { if (qc->tf.protocol != ATA_PROT_NCQ) { - ata_sff_qc_prep(qc); + ata_bmdma_qc_prep(qc); return; } diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c index d3a22f2ae7b6..d533b3d20ca1 100644 --- a/drivers/ata/sata_qstor.c +++ b/drivers/ata/sata_qstor.c @@ -303,10 +303,8 @@ static void qs_qc_prep(struct ata_queued_cmd *qc) VPRINTK("ENTER\n"); qs_enter_reg_mode(qc->ap); - if (qc->tf.protocol != ATA_PROT_DMA) { - ata_sff_qc_prep(qc); + if (qc->tf.protocol != ATA_PROT_DMA) return; - } nelem = qs_fill_sg(qc); diff --git a/include/linux/libata.h b/include/linux/libata.h index 1d3859016aec..3675fd29b2e5 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1570,8 +1570,6 @@ extern const struct ata_port_operations ata_bmdma32_port_ops; .sg_tablesize = LIBATA_MAX_PRD, \ .dma_boundary = ATA_DMA_BOUNDARY -extern void ata_sff_qc_prep(struct ata_queued_cmd *qc); -extern void ata_sff_dumb_qc_prep(struct ata_queued_cmd *qc); extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device); extern u8 ata_sff_check_status(struct ata_port *ap); extern void ata_sff_pause(struct ata_port *ap); @@ -1628,6 +1626,8 @@ extern int ata_pci_sff_init_one(struct pci_dev *pdev, struct scsi_host_template *sht, void *host_priv, int hflags); #endif /* CONFIG_PCI */ +extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc); +extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); extern void ata_bmdma_error_handler(struct ata_port *ap); extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); extern void ata_bmdma_setup(struct ata_queued_cmd *qc); |