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Merge branch 'fore200e-DMA-cleanups-and-fixes'

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Christoph Hellwig says:

====================
fore200e DMA cleanups and fixes

The fore200e driver came up during some dma-related audits, so
here is the fallout.  Compile tested (x86 & sparc) only.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-10-10 22:38:50 -07:00
commit 83b59b46c8
2 changed files with 134 additions and 274 deletions
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400
drivers/atm/fore200e.c
View File

@ -106,7 +106,6 @@
static const struct atmdev_ops fore200e_ops;
static const struct fore200e_bus fore200e_bus[];
static LIST_HEAD(fore200e_boards);
@ -183,10 +182,9 @@ fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, i
alignment = 0;
chunk->alloc_size = size + alignment;
chunk->align_size = size;
chunk->direction = direction;
chunk->alloc_addr = kzalloc(chunk->alloc_size, GFP_KERNEL | GFP_DMA);
chunk->alloc_addr = kzalloc(chunk->alloc_size, GFP_KERNEL);
if (chunk->alloc_addr == NULL)
return -ENOMEM;
@ -195,8 +193,12 @@ fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, i
chunk->align_addr = chunk->alloc_addr + offset;
chunk->dma_addr = fore200e->bus->dma_map(fore200e, chunk->align_addr, chunk->align_size, direction);
chunk->dma_addr = dma_map_single(fore200e->dev, chunk->align_addr,
size, direction);
if (dma_mapping_error(fore200e->dev, chunk->dma_addr)) {
kfree(chunk->alloc_addr);
return -ENOMEM;
}
return 0;
}
@ -206,11 +208,39 @@ fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, i
static void
fore200e_chunk_free(struct fore200e* fore200e, struct chunk* chunk)
{
fore200e->bus->dma_unmap(fore200e, chunk->dma_addr, chunk->dma_size, chunk->direction);
dma_unmap_single(fore200e->dev, chunk->dma_addr, chunk->dma_size,
chunk->direction);
kfree(chunk->alloc_addr);
}
/*
* Allocate a DMA consistent chunk of memory intended to act as a communication
* mechanism (to hold descriptors, status, queues, etc.) shared by the driver
* and the adapter.
*/
static int
fore200e_dma_chunk_alloc(struct fore200e *fore200e, struct chunk *chunk,
int size, int nbr, int alignment)
{
/* returned chunks are page-aligned */
chunk->alloc_size = size * nbr;
chunk->alloc_addr = dma_alloc_coherent(fore200e->dev, chunk->alloc_size,
&chunk->dma_addr, GFP_KERNEL);
if (!chunk->alloc_addr)
return -ENOMEM;
chunk->align_addr = chunk->alloc_addr;
return 0;
}
/*
* Free a DMA consistent chunk of memory.
*/
static void
fore200e_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk)
{
dma_free_coherent(fore200e->dev, chunk->alloc_size, chunk->alloc_addr,
chunk->dma_addr);
}
static void
fore200e_spin(int msecs)
@ -303,10 +333,10 @@ fore200e_uninit_bs_queue(struct fore200e* fore200e)
struct chunk* rbd_block = &fore200e->host_bsq[ scheme ][ magn ].rbd_block;
if (status->alloc_addr)
fore200e->bus->dma_chunk_free(fore200e, status);
fore200e_dma_chunk_free(fore200e, status);
if (rbd_block->alloc_addr)
fore200e->bus->dma_chunk_free(fore200e, rbd_block);
fore200e_dma_chunk_free(fore200e, rbd_block);
}
}
}
@ -372,17 +402,17 @@ fore200e_shutdown(struct fore200e* fore200e)
/* fall through */
case FORE200E_STATE_INIT_RXQ:
fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.status);
fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.rpd);
fore200e_dma_chunk_free(fore200e, &fore200e->host_rxq.status);
fore200e_dma_chunk_free(fore200e, &fore200e->host_rxq.rpd);
/* fall through */
case FORE200E_STATE_INIT_TXQ:
fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.status);
fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.tpd);
fore200e_dma_chunk_free(fore200e, &fore200e->host_txq.status);
fore200e_dma_chunk_free(fore200e, &fore200e->host_txq.tpd);
/* fall through */
case FORE200E_STATE_INIT_CMDQ:
fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_cmdq.status);
fore200e_dma_chunk_free(fore200e, &fore200e->host_cmdq.status);
/* fall through */
case FORE200E_STATE_INITIALIZE:
@ -429,81 +459,6 @@ static void fore200e_pca_write(u32 val, volatile u32 __iomem *addr)
writel(cpu_to_le32(val), addr);
}
static u32
fore200e_pca_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction)
{
u32 dma_addr = dma_map_single(&((struct pci_dev *) fore200e->bus_dev)->dev, virt_addr, size, direction);
DPRINTK(3, "PCI DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d, --> dma_addr = 0x%08x\n",
virt_addr, size, direction, dma_addr);
return dma_addr;
}
static void
fore200e_pca_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
{
DPRINTK(3, "PCI DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d\n",
dma_addr, size, direction);
dma_unmap_single(&((struct pci_dev *) fore200e->bus_dev)->dev, dma_addr, size, direction);
}
static void
fore200e_pca_dma_sync_for_cpu(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
{
DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction);
dma_sync_single_for_cpu(&((struct pci_dev *) fore200e->bus_dev)->dev, dma_addr, size, direction);
}
static void
fore200e_pca_dma_sync_for_device(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
{
DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction);
dma_sync_single_for_device(&((struct pci_dev *) fore200e->bus_dev)->dev, dma_addr, size, direction);
}
/* allocate a DMA consistent chunk of memory intended to act as a communication mechanism
(to hold descriptors, status, queues, etc.) shared by the driver and the adapter */
static int
fore200e_pca_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk,
int size, int nbr, int alignment)
{
/* returned chunks are page-aligned */
chunk->alloc_size = size * nbr;
chunk->alloc_addr = dma_alloc_coherent(&((struct pci_dev *) fore200e->bus_dev)->dev,
chunk->alloc_size,
&chunk->dma_addr,
GFP_KERNEL);
if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0))
return -ENOMEM;
chunk->align_addr = chunk->alloc_addr;
return 0;
}
/* free a DMA consistent chunk of memory */
static void
fore200e_pca_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk)
{
dma_free_coherent(&((struct pci_dev *) fore200e->bus_dev)->dev,
chunk->alloc_size,
chunk->alloc_addr,
chunk->dma_addr);
}
static int
fore200e_pca_irq_check(struct fore200e* fore200e)
{
@ -571,7 +526,7 @@ fore200e_pca_unmap(struct fore200e* fore200e)
static int fore200e_pca_configure(struct fore200e *fore200e)
{
struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev;
struct pci_dev *pci_dev = to_pci_dev(fore200e->dev);
u8 master_ctrl, latency;
DPRINTK(2, "device %s being configured\n", fore200e->name);
@ -623,7 +578,10 @@ fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom)
opcode.opcode = OPCODE_GET_PROM;
opcode.pad = 0;
prom_dma = fore200e->bus->dma_map(fore200e, prom, sizeof(struct prom_data), DMA_FROM_DEVICE);
prom_dma = dma_map_single(fore200e->dev, prom, sizeof(struct prom_data),
DMA_FROM_DEVICE);
if (dma_mapping_error(fore200e->dev, prom_dma))
return -ENOMEM;
fore200e->bus->write(prom_dma, &entry->cp_entry->cmd.prom_block.prom_haddr);
@ -635,7 +593,7 @@ fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom)
*entry->status = STATUS_FREE;
fore200e->bus->dma_unmap(fore200e, prom_dma, sizeof(struct prom_data), DMA_FROM_DEVICE);
dma_unmap_single(fore200e->dev, prom_dma, sizeof(struct prom_data), DMA_FROM_DEVICE);
if (ok == 0) {
printk(FORE200E "unable to get PROM data from device %s\n", fore200e->name);
@ -658,15 +616,31 @@ fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom)
static int
fore200e_pca_proc_read(struct fore200e* fore200e, char *page)
{
struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev;
struct pci_dev *pci_dev = to_pci_dev(fore200e->dev);
return sprintf(page, " PCI bus/slot/function:\t%d/%d/%d\n",
pci_dev->bus->number, PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
}
static const struct fore200e_bus fore200e_pci_ops = {
.model_name = "PCA-200E",
.proc_name = "pca200e",
.descr_alignment = 32,
.buffer_alignment = 4,
.status_alignment = 32,
.read = fore200e_pca_read,
.write = fore200e_pca_write,
.configure = fore200e_pca_configure,
.map = fore200e_pca_map,
.reset = fore200e_pca_reset,
.prom_read = fore200e_pca_prom_read,
.unmap = fore200e_pca_unmap,
.irq_check = fore200e_pca_irq_check,
.irq_ack = fore200e_pca_irq_ack,
.proc_read = fore200e_pca_proc_read,
};
#endif /* CONFIG_PCI */
#ifdef CONFIG_SBUS
static u32 fore200e_sba_read(volatile u32 __iomem *addr)
@ -679,78 +653,6 @@ static void fore200e_sba_write(u32 val, volatile u32 __iomem *addr)
sbus_writel(val, addr);
}
static u32 fore200e_sba_dma_map(struct fore200e *fore200e, void* virt_addr, int size, int direction)
{
struct platform_device *op = fore200e->bus_dev;
u32 dma_addr;
dma_addr = dma_map_single(&op->dev, virt_addr, size, direction);
DPRINTK(3, "SBUS DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d --> dma_addr = 0x%08x\n",
virt_addr, size, direction, dma_addr);
return dma_addr;
}
static void fore200e_sba_dma_unmap(struct fore200e *fore200e, u32 dma_addr, int size, int direction)
{
struct platform_device *op = fore200e->bus_dev;
DPRINTK(3, "SBUS DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d,\n",
dma_addr, size, direction);
dma_unmap_single(&op->dev, dma_addr, size, direction);
}
static void fore200e_sba_dma_sync_for_cpu(struct fore200e *fore200e, u32 dma_addr, int size, int direction)
{
struct platform_device *op = fore200e->bus_dev;
DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction);
dma_sync_single_for_cpu(&op->dev, dma_addr, size, direction);
}
static void fore200e_sba_dma_sync_for_device(struct fore200e *fore200e, u32 dma_addr, int size, int direction)
{
struct platform_device *op = fore200e->bus_dev;
DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction);
dma_sync_single_for_device(&op->dev, dma_addr, size, direction);
}
/* Allocate a DVMA consistent chunk of memory intended to act as a communication mechanism
* (to hold descriptors, status, queues, etc.) shared by the driver and the adapter.
*/
static int fore200e_sba_dma_chunk_alloc(struct fore200e *fore200e, struct chunk *chunk,
int size, int nbr, int alignment)
{
struct platform_device *op = fore200e->bus_dev;
chunk->alloc_size = chunk->align_size = size * nbr;
/* returned chunks are page-aligned */
chunk->alloc_addr = dma_alloc_coherent(&op->dev, chunk->alloc_size,
&chunk->dma_addr, GFP_ATOMIC);
if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0))
return -ENOMEM;
chunk->align_addr = chunk->alloc_addr;
return 0;
}
/* free a DVMA consistent chunk of memory */
static void fore200e_sba_dma_chunk_free(struct fore200e *fore200e, struct chunk *chunk)
{
struct platform_device *op = fore200e->bus_dev;
dma_free_coherent(&op->dev, chunk->alloc_size,
chunk->alloc_addr, chunk->dma_addr);
}
static void fore200e_sba_irq_enable(struct fore200e *fore200e)
{
u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY;
@ -777,7 +679,7 @@ static void fore200e_sba_reset(struct fore200e *fore200e)
static int __init fore200e_sba_map(struct fore200e *fore200e)
{
struct platform_device *op = fore200e->bus_dev;
struct platform_device *op = to_platform_device(fore200e->dev);
unsigned int bursts;
/* gain access to the SBA specific registers */
@ -807,7 +709,7 @@ static int __init fore200e_sba_map(struct fore200e *fore200e)
static void fore200e_sba_unmap(struct fore200e *fore200e)
{
struct platform_device *op = fore200e->bus_dev;
struct platform_device *op = to_platform_device(fore200e->dev);
of_iounmap(&op->resource[0], fore200e->regs.sba.hcr, SBA200E_HCR_LENGTH);
of_iounmap(&op->resource[1], fore200e->regs.sba.bsr, SBA200E_BSR_LENGTH);
@ -823,7 +725,7 @@ static int __init fore200e_sba_configure(struct fore200e *fore200e)
static int __init fore200e_sba_prom_read(struct fore200e *fore200e, struct prom_data *prom)
{
struct platform_device *op = fore200e->bus_dev;
struct platform_device *op = to_platform_device(fore200e->dev);
const u8 *prop;
int len;
@ -847,7 +749,7 @@ static int __init fore200e_sba_prom_read(struct fore200e *fore200e, struct prom_
static int fore200e_sba_proc_read(struct fore200e *fore200e, char *page)
{
struct platform_device *op = fore200e->bus_dev;
struct platform_device *op = to_platform_device(fore200e->dev);
const struct linux_prom_registers *regs;
regs = of_get_property(op->dev.of_node, "reg", NULL);
@ -855,8 +757,26 @@ static int fore200e_sba_proc_read(struct fore200e *fore200e, char *page)
return sprintf(page, " SBUS slot/device:\t\t%d/'%s'\n",
(regs ? regs->which_io : 0), op->dev.of_node->name);
}
#endif /* CONFIG_SBUS */
static const struct fore200e_bus fore200e_sbus_ops = {
.model_name = "SBA-200E",
.proc_name = "sba200e",
.descr_alignment = 32,
.buffer_alignent = 64,
.status_alignment = 32,
.read = fore200e_sba_read,
.write = fore200e_sba_write,
.configure = fore200e_sba_configure,
.map = fore200e_sba_map,
.reset = fore200e_sba_reset,
.prom_read = fore200e_sba_prom_read,
.unmap = fore200e_sba_unmap,
.irq_enable = fore200e_sba_irq_enable,
.irq_check = fore200e_sba_irq_check,
.irq_ack = fore200e_sba_irq_ack,
.proc_read = fore200e_sba_proc_read,
};
#endif /* CONFIG_SBUS */
static void
fore200e_tx_irq(struct fore200e* fore200e)
@ -884,7 +804,7 @@ fore200e_tx_irq(struct fore200e* fore200e)
kfree(entry->data);
/* remove DMA mapping */
fore200e->bus->dma_unmap(fore200e, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length,
dma_unmap_single(fore200e->dev, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length,
DMA_TO_DEVICE);
vc_map = entry->vc_map;
@ -1105,12 +1025,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle);
/* Make device DMA transfer visible to CPU. */
fore200e->bus->dma_sync_for_cpu(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE);
dma_sync_single_for_cpu(fore200e->dev, buffer->data.dma_addr,
rpd->rsd[i].length, DMA_FROM_DEVICE);
skb_put_data(skb, buffer->data.align_addr, rpd->rsd[i].length);
/* Now let the device get at it again. */
fore200e->bus->dma_sync_for_device(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE);
dma_sync_single_for_device(fore200e->dev, buffer->data.dma_addr,
rpd->rsd[i].length, DMA_FROM_DEVICE);
}
DPRINTK(3, "rx skb: len = %d, truesize = %d\n", skb->len, skb->truesize);
@ -1611,7 +1533,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
}
if (tx_copy) {
data = kmalloc(tx_len, GFP_ATOMIC | GFP_DMA);
data = kmalloc(tx_len, GFP_ATOMIC);
if (data == NULL) {
if (vcc->pop) {
vcc->pop(vcc, skb);
@ -1679,7 +1601,13 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
entry->data = tx_copy ? data : NULL;
tpd = entry->tpd;
tpd->tsd[ 0 ].buffer = fore200e->bus->dma_map(fore200e, data, tx_len, DMA_TO_DEVICE);
tpd->tsd[ 0 ].buffer = dma_map_single(fore200e->dev, data, tx_len,
DMA_TO_DEVICE);
if (dma_mapping_error(fore200e->dev, tpd->tsd[0].buffer)) {
if (tx_copy)
kfree(data);
return -ENOMEM;
}
tpd->tsd[ 0 ].length = tx_len;
FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX);
@ -1747,13 +1675,15 @@ fore200e_getstats(struct fore200e* fore200e)
u32 stats_dma_addr;
if (fore200e->stats == NULL) {
fore200e->stats = kzalloc(sizeof(struct stats), GFP_KERNEL | GFP_DMA);
fore200e->stats = kzalloc(sizeof(struct stats), GFP_KERNEL);
if (fore200e->stats == NULL)
return -ENOMEM;
}
stats_dma_addr = fore200e->bus->dma_map(fore200e, fore200e->stats,
sizeof(struct stats), DMA_FROM_DEVICE);
stats_dma_addr = dma_map_single(fore200e->dev, fore200e->stats,
sizeof(struct stats), DMA_FROM_DEVICE);
if (dma_mapping_error(fore200e->dev, stats_dma_addr))
return -ENOMEM;
FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD);
@ -1770,7 +1700,7 @@ fore200e_getstats(struct fore200e* fore200e)
*entry->status = STATUS_FREE;
fore200e->bus->dma_unmap(fore200e, stats_dma_addr, sizeof(struct stats), DMA_FROM_DEVICE);
dma_unmap_single(fore200e->dev, stats_dma_addr, sizeof(struct stats), DMA_FROM_DEVICE);
if (ok == 0) {
printk(FORE200E "unable to get statistics from device %s\n", fore200e->name);
@ -2049,7 +1979,7 @@ static int fore200e_irq_request(struct fore200e *fore200e)
static int fore200e_get_esi(struct fore200e *fore200e)
{
struct prom_data* prom = kzalloc(sizeof(struct prom_data), GFP_KERNEL | GFP_DMA);
struct prom_data* prom = kzalloc(sizeof(struct prom_data), GFP_KERNEL);
int ok, i;
if (!prom)
@ -2156,7 +2086,7 @@ static int fore200e_init_bs_queue(struct fore200e *fore200e)
bsq = &fore200e->host_bsq[ scheme ][ magn ];
/* allocate and align the array of status words */
if (fore200e->bus->dma_chunk_alloc(fore200e,
if (fore200e_dma_chunk_alloc(fore200e,
&bsq->status,
sizeof(enum status),
QUEUE_SIZE_BS,
@ -2165,13 +2095,13 @@ static int fore200e_init_bs_queue(struct fore200e *fore200e)
}
/* allocate and align the array of receive buffer descriptors */
if (fore200e->bus->dma_chunk_alloc(fore200e,
if (fore200e_dma_chunk_alloc(fore200e,
&bsq->rbd_block,
sizeof(struct rbd_block),
QUEUE_SIZE_BS,
fore200e->bus->descr_alignment) < 0) {
fore200e->bus->dma_chunk_free(fore200e, &bsq->status);
fore200e_dma_chunk_free(fore200e, &bsq->status);
return -ENOMEM;
}
@ -2212,7 +2142,7 @@ static int fore200e_init_rx_queue(struct fore200e *fore200e)
DPRINTK(2, "receive queue is being initialized\n");
/* allocate and align the array of status words */
if (fore200e->bus->dma_chunk_alloc(fore200e,
if (fore200e_dma_chunk_alloc(fore200e,
&rxq->status,
sizeof(enum status),
QUEUE_SIZE_RX,
@ -2221,13 +2151,13 @@ static int fore200e_init_rx_queue(struct fore200e *fore200e)
}
/* allocate and align the array of receive PDU descriptors */
if (fore200e->bus->dma_chunk_alloc(fore200e,
if (fore200e_dma_chunk_alloc(fore200e,
&rxq->rpd,
sizeof(struct rpd),
QUEUE_SIZE_RX,
fore200e->bus->descr_alignment) < 0) {
fore200e->bus->dma_chunk_free(fore200e, &rxq->status);
fore200e_dma_chunk_free(fore200e, &rxq->status);
return -ENOMEM;
}
@ -2271,7 +2201,7 @@ static int fore200e_init_tx_queue(struct fore200e *fore200e)
DPRINTK(2, "transmit queue is being initialized\n");
/* allocate and align the array of status words */
if (fore200e->bus->dma_chunk_alloc(fore200e,
if (fore200e_dma_chunk_alloc(fore200e,
&txq->status,
sizeof(enum status),
QUEUE_SIZE_TX,
@ -2280,13 +2210,13 @@ static int fore200e_init_tx_queue(struct fore200e *fore200e)
}
/* allocate and align the array of transmit PDU descriptors */
if (fore200e->bus->dma_chunk_alloc(fore200e,
if (fore200e_dma_chunk_alloc(fore200e,
&txq->tpd,
sizeof(struct tpd),
QUEUE_SIZE_TX,
fore200e->bus->descr_alignment) < 0) {
fore200e->bus->dma_chunk_free(fore200e, &txq->status);
fore200e_dma_chunk_free(fore200e, &txq->status);
return -ENOMEM;
}
@ -2333,7 +2263,7 @@ static int fore200e_init_cmd_queue(struct fore200e *fore200e)
DPRINTK(2, "command queue is being initialized\n");
/* allocate and align the array of status words */
if (fore200e->bus->dma_chunk_alloc(fore200e,
if (fore200e_dma_chunk_alloc(fore200e,
&cmdq->status,
sizeof(enum status),
QUEUE_SIZE_CMD,
@ -2487,25 +2417,15 @@ static void fore200e_monitor_puts(struct fore200e *fore200e, char *str)
static int fore200e_load_and_start_fw(struct fore200e *fore200e)
{
const struct firmware *firmware;
struct device *device;
const struct fw_header *fw_header;
const __le32 *fw_data;
u32 fw_size;
u32 __iomem *load_addr;
char buf[48];
int err = -ENODEV;
if (strcmp(fore200e->bus->model_name, "PCA-200E") == 0)
device = &((struct pci_dev *) fore200e->bus_dev)->dev;
#ifdef CONFIG_SBUS
else if (strcmp(fore200e->bus->model_name, "SBA-200E") == 0)
device = &((struct platform_device *) fore200e->bus_dev)->dev;
#endif
else
return err;
int err;
sprintf(buf, "%s%s", fore200e->bus->proc_name, FW_EXT);
if ((err = request_firmware(&firmware, buf, device)) < 0) {
if ((err = request_firmware(&firmware, buf, fore200e->dev)) < 0) {
printk(FORE200E "problem loading firmware image %s\n", fore200e->bus->model_name);
return err;
}
@ -2631,7 +2551,6 @@ static const struct of_device_id fore200e_sba_match[];
static int fore200e_sba_probe(struct platform_device *op)
{
const struct of_device_id *match;
const struct fore200e_bus *bus;
struct fore200e *fore200e;
static int index = 0;
int err;
@ -2639,18 +2558,17 @@ static int fore200e_sba_probe(struct platform_device *op)
match = of_match_device(fore200e_sba_match, &op->dev);
if (!match)
return -EINVAL;
bus = match->data;
fore200e = kzalloc(sizeof(struct fore200e), GFP_KERNEL);
if (!fore200e)
return -ENOMEM;
fore200e->bus = bus;
fore200e->bus_dev = op;
fore200e->bus = &fore200e_sbus_ops;
fore200e->dev = &op->dev;
fore200e->irq = op->archdata.irqs[0];
fore200e->phys_base = op->resource[0].start;
sprintf(fore200e->name, "%s-%d", bus->model_name, index);
sprintf(fore200e->name, "SBA-200E-%d", index);
err = fore200e_init(fore200e, &op->dev);
if (err < 0) {
@ -2678,7 +2596,6 @@ static int fore200e_sba_remove(struct platform_device *op)
static const struct of_device_id fore200e_sba_match[] = {
{
.name = SBA200E_PROM_NAME,
.data = (void *) &fore200e_bus[1],
},
{},
};
@ -2698,7 +2615,6 @@ static struct platform_driver fore200e_sba_driver = {
static int fore200e_pca_detect(struct pci_dev *pci_dev,
const struct pci_device_id *pci_ent)
{
const struct fore200e_bus* bus = (struct fore200e_bus*) pci_ent->driver_data;
struct fore200e* fore200e;
int err = 0;
static int index = 0;
@ -2719,20 +2635,19 @@ static int fore200e_pca_detect(struct pci_dev *pci_dev,
goto out_disable;
}
fore200e->bus = bus;
fore200e->bus_dev = pci_dev;
fore200e->bus = &fore200e_pci_ops;
fore200e->dev = &pci_dev->dev;
fore200e->irq = pci_dev->irq;
fore200e->phys_base = pci_resource_start(pci_dev, 0);
sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1);
sprintf(fore200e->name, "PCA-200E-%d", index - 1);
pci_set_master(pci_dev);
printk(FORE200E "device %s found at 0x%lx, IRQ %s\n",
fore200e->bus->model_name,
printk(FORE200E "device PCA-200E found at 0x%lx, IRQ %s\n",
fore200e->phys_base, fore200e_irq_itoa(fore200e->irq));
sprintf(fore200e->name, "%s-%d", bus->model_name, index);
sprintf(fore200e->name, "PCA-200E-%d", index);
err = fore200e_init(fore200e, &pci_dev->dev);
if (err < 0) {
@ -2767,8 +2682,7 @@ static void fore200e_pca_remove_one(struct pci_dev *pci_dev)
static const struct pci_device_id fore200e_pca_tbl[] = {
{ PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_PCA200E, PCI_ANY_ID, PCI_ANY_ID,
0, 0, (unsigned long) &fore200e_bus[0] },
{ PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_PCA200E, PCI_ANY_ID, PCI_ANY_ID },
{ 0, }
};
@ -3108,8 +3022,7 @@ module_init(fore200e_module_init);
module_exit(fore200e_module_cleanup);
static const struct atmdev_ops fore200e_ops =
{
static const struct atmdev_ops fore200e_ops = {
.open = fore200e_open,
.close = fore200e_close,
.ioctl = fore200e_ioctl,
@ -3121,53 +3034,6 @@ static const struct atmdev_ops fore200e_ops =
.owner = THIS_MODULE
};
static const struct fore200e_bus fore200e_bus[] = {
#ifdef CONFIG_PCI
{ "PCA-200E", "pca200e", 32, 4, 32,
fore200e_pca_read,
fore200e_pca_write,
fore200e_pca_dma_map,
fore200e_pca_dma_unmap,
fore200e_pca_dma_sync_for_cpu,
fore200e_pca_dma_sync_for_device,
fore200e_pca_dma_chunk_alloc,
fore200e_pca_dma_chunk_free,
fore200e_pca_configure,
fore200e_pca_map,
fore200e_pca_reset,
fore200e_pca_prom_read,
fore200e_pca_unmap,
NULL,
fore200e_pca_irq_check,
fore200e_pca_irq_ack,
fore200e_pca_proc_read,
},
#endif
#ifdef CONFIG_SBUS
{ "SBA-200E", "sba200e", 32, 64, 32,
fore200e_sba_read,
fore200e_sba_write,
fore200e_sba_dma_map,
fore200e_sba_dma_unmap,
fore200e_sba_dma_sync_for_cpu,
fore200e_sba_dma_sync_for_device,
fore200e_sba_dma_chunk_alloc,
fore200e_sba_dma_chunk_free,
fore200e_sba_configure,
fore200e_sba_map,
fore200e_sba_reset,
fore200e_sba_prom_read,
fore200e_sba_unmap,
fore200e_sba_irq_enable,
fore200e_sba_irq_check,
fore200e_sba_irq_ack,
fore200e_sba_proc_read,
},
#endif
{}
};
MODULE_LICENSE("GPL");
#ifdef CONFIG_PCI
#ifdef __LITTLE_ENDIAN__

8
drivers/atm/fore200e.h
View File

@ -805,12 +805,6 @@ typedef struct fore200e_bus {
int status_alignment; /* status words DMA alignment requirement */
u32 (*read)(volatile u32 __iomem *);
void (*write)(u32, volatile u32 __iomem *);
u32 (*dma_map)(struct fore200e*, void*, int, int);
void (*dma_unmap)(struct fore200e*, u32, int, int);
void (*dma_sync_for_cpu)(struct fore200e*, u32, int, int);
void (*dma_sync_for_device)(struct fore200e*, u32, int, int);
int (*dma_chunk_alloc)(struct fore200e*, struct chunk*, int, int, int);
void (*dma_chunk_free)(struct fore200e*, struct chunk*);
int (*configure)(struct fore200e*);
int (*map)(struct fore200e*);
void (*reset)(struct fore200e*);
@ -844,7 +838,7 @@ typedef struct fore200e {
enum fore200e_state state; /* device state */
char name[16]; /* device name */
void* bus_dev; /* bus-specific kernel data */
struct device *dev;
int irq; /* irq number */
unsigned long phys_base; /* physical base address */
void __iomem * virt_base; /* virtual base address */