Altera TSE: Fix sparse errors and warnings

This patch fixes the many sparse errors and warnings contained in the
initial submission of the Altera Triple Speed Ethernet driver, and a
few minor cppcheck warnings. Changes are tested on ARM and NIOS2
example designs, and compile tested against multiple architectures.
Typical issues addressed were as follows:

altera_tse_ethtool.c:136:19: warning: incorrect type in argument
    1 (different address spaces)
altera_tse_ethtool.c:136:19:    expected void const volatile
    [noderef] <asn:2>*addr
altera_tse_ethtool.c:136:19:    got unsigned int *<noident>
...
altera_sgdma.c:129:31: warning: cast removes address space of
    expression

Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vince Bridgers 2014-05-14 14:38:36 -05:00 committed by David S. Miller
parent 200b916f35
commit 898305806a
10 changed files with 366 additions and 274 deletions

View File

@ -5,3 +5,4 @@
obj-$(CONFIG_ALTERA_TSE) += altera_tse.o
altera_tse-objs := altera_tse_main.o altera_tse_ethtool.o \
altera_msgdma.o altera_sgdma.o altera_utils.o
ccflags-y += -D__CHECK_ENDIAN__

View File

@ -37,18 +37,16 @@ void msgdma_start_rxdma(struct altera_tse_private *priv)
void msgdma_reset(struct altera_tse_private *priv)
{
int counter;
struct msgdma_csr *txcsr =
(struct msgdma_csr *)priv->tx_dma_csr;
struct msgdma_csr *rxcsr =
(struct msgdma_csr *)priv->rx_dma_csr;
/* Reset Rx mSGDMA */
iowrite32(MSGDMA_CSR_STAT_MASK, &rxcsr->status);
iowrite32(MSGDMA_CSR_CTL_RESET, &rxcsr->control);
csrwr32(MSGDMA_CSR_STAT_MASK, priv->rx_dma_csr,
msgdma_csroffs(status));
csrwr32(MSGDMA_CSR_CTL_RESET, priv->rx_dma_csr,
msgdma_csroffs(control));
counter = 0;
while (counter++ < ALTERA_TSE_SW_RESET_WATCHDOG_CNTR) {
if (tse_bit_is_clear(&rxcsr->status,
if (tse_bit_is_clear(priv->rx_dma_csr, msgdma_csroffs(status),
MSGDMA_CSR_STAT_RESETTING))
break;
udelay(1);
@ -59,15 +57,18 @@ void msgdma_reset(struct altera_tse_private *priv)
"TSE Rx mSGDMA resetting bit never cleared!\n");
/* clear all status bits */
iowrite32(MSGDMA_CSR_STAT_MASK, &rxcsr->status);
csrwr32(MSGDMA_CSR_STAT_MASK, priv->rx_dma_csr, msgdma_csroffs(status));
/* Reset Tx mSGDMA */
iowrite32(MSGDMA_CSR_STAT_MASK, &txcsr->status);
iowrite32(MSGDMA_CSR_CTL_RESET, &txcsr->control);
csrwr32(MSGDMA_CSR_STAT_MASK, priv->tx_dma_csr,
msgdma_csroffs(status));
csrwr32(MSGDMA_CSR_CTL_RESET, priv->tx_dma_csr,
msgdma_csroffs(control));
counter = 0;
while (counter++ < ALTERA_TSE_SW_RESET_WATCHDOG_CNTR) {
if (tse_bit_is_clear(&txcsr->status,
if (tse_bit_is_clear(priv->tx_dma_csr, msgdma_csroffs(status),
MSGDMA_CSR_STAT_RESETTING))
break;
udelay(1);
@ -78,58 +79,58 @@ void msgdma_reset(struct altera_tse_private *priv)
"TSE Tx mSGDMA resetting bit never cleared!\n");
/* clear all status bits */
iowrite32(MSGDMA_CSR_STAT_MASK, &txcsr->status);
csrwr32(MSGDMA_CSR_STAT_MASK, priv->tx_dma_csr, msgdma_csroffs(status));
}
void msgdma_disable_rxirq(struct altera_tse_private *priv)
{
struct msgdma_csr *csr = priv->rx_dma_csr;
tse_clear_bit(&csr->control, MSGDMA_CSR_CTL_GLOBAL_INTR);
tse_clear_bit(priv->rx_dma_csr, msgdma_csroffs(control),
MSGDMA_CSR_CTL_GLOBAL_INTR);
}
void msgdma_enable_rxirq(struct altera_tse_private *priv)
{
struct msgdma_csr *csr = priv->rx_dma_csr;
tse_set_bit(&csr->control, MSGDMA_CSR_CTL_GLOBAL_INTR);
tse_set_bit(priv->rx_dma_csr, msgdma_csroffs(control),
MSGDMA_CSR_CTL_GLOBAL_INTR);
}
void msgdma_disable_txirq(struct altera_tse_private *priv)
{
struct msgdma_csr *csr = priv->tx_dma_csr;
tse_clear_bit(&csr->control, MSGDMA_CSR_CTL_GLOBAL_INTR);
tse_clear_bit(priv->tx_dma_csr, msgdma_csroffs(control),
MSGDMA_CSR_CTL_GLOBAL_INTR);
}
void msgdma_enable_txirq(struct altera_tse_private *priv)
{
struct msgdma_csr *csr = priv->tx_dma_csr;
tse_set_bit(&csr->control, MSGDMA_CSR_CTL_GLOBAL_INTR);
tse_set_bit(priv->tx_dma_csr, msgdma_csroffs(control),
MSGDMA_CSR_CTL_GLOBAL_INTR);
}
void msgdma_clear_rxirq(struct altera_tse_private *priv)
{
struct msgdma_csr *csr = priv->rx_dma_csr;
iowrite32(MSGDMA_CSR_STAT_IRQ, &csr->status);
csrwr32(MSGDMA_CSR_STAT_IRQ, priv->rx_dma_csr, msgdma_csroffs(status));
}
void msgdma_clear_txirq(struct altera_tse_private *priv)
{
struct msgdma_csr *csr = priv->tx_dma_csr;
iowrite32(MSGDMA_CSR_STAT_IRQ, &csr->status);
csrwr32(MSGDMA_CSR_STAT_IRQ, priv->tx_dma_csr, msgdma_csroffs(status));
}
/* return 0 to indicate transmit is pending */
int msgdma_tx_buffer(struct altera_tse_private *priv, struct tse_buffer *buffer)
{
struct msgdma_extended_desc *desc = priv->tx_dma_desc;
iowrite32(lower_32_bits(buffer->dma_addr), &desc->read_addr_lo);
iowrite32(upper_32_bits(buffer->dma_addr), &desc->read_addr_hi);
iowrite32(0, &desc->write_addr_lo);
iowrite32(0, &desc->write_addr_hi);
iowrite32(buffer->len, &desc->len);
iowrite32(0, &desc->burst_seq_num);
iowrite32(MSGDMA_DESC_TX_STRIDE, &desc->stride);
iowrite32(MSGDMA_DESC_CTL_TX_SINGLE, &desc->control);
csrwr32(lower_32_bits(buffer->dma_addr), priv->tx_dma_desc,
msgdma_descroffs(read_addr_lo));
csrwr32(upper_32_bits(buffer->dma_addr), priv->tx_dma_desc,
msgdma_descroffs(read_addr_hi));
csrwr32(0, priv->tx_dma_desc, msgdma_descroffs(write_addr_lo));
csrwr32(0, priv->tx_dma_desc, msgdma_descroffs(write_addr_hi));
csrwr32(buffer->len, priv->tx_dma_desc, msgdma_descroffs(len));
csrwr32(0, priv->tx_dma_desc, msgdma_descroffs(burst_seq_num));
csrwr32(MSGDMA_DESC_TX_STRIDE, priv->tx_dma_desc,
msgdma_descroffs(stride));
csrwr32(MSGDMA_DESC_CTL_TX_SINGLE, priv->tx_dma_desc,
msgdma_descroffs(control));
return 0;
}
@ -138,17 +139,16 @@ u32 msgdma_tx_completions(struct altera_tse_private *priv)
u32 ready = 0;
u32 inuse;
u32 status;
struct msgdma_csr *txcsr =
(struct msgdma_csr *)priv->tx_dma_csr;
/* Get number of sent descriptors */
inuse = ioread32(&txcsr->rw_fill_level) & 0xffff;
inuse = csrrd32(priv->tx_dma_csr, msgdma_csroffs(rw_fill_level))
& 0xffff;
if (inuse) { /* Tx FIFO is not empty */
ready = priv->tx_prod - priv->tx_cons - inuse - 1;
} else {
/* Check for buffered last packet */
status = ioread32(&txcsr->status);
status = csrrd32(priv->tx_dma_csr, msgdma_csroffs(status));
if (status & MSGDMA_CSR_STAT_BUSY)
ready = priv->tx_prod - priv->tx_cons - 1;
else
@ -162,7 +162,6 @@ u32 msgdma_tx_completions(struct altera_tse_private *priv)
void msgdma_add_rx_desc(struct altera_tse_private *priv,
struct tse_buffer *rxbuffer)
{
struct msgdma_extended_desc *desc = priv->rx_dma_desc;
u32 len = priv->rx_dma_buf_sz;
dma_addr_t dma_addr = rxbuffer->dma_addr;
u32 control = (MSGDMA_DESC_CTL_END_ON_EOP
@ -172,14 +171,16 @@ void msgdma_add_rx_desc(struct altera_tse_private *priv,
| MSGDMA_DESC_CTL_TR_ERR_IRQ
| MSGDMA_DESC_CTL_GO);
iowrite32(0, &desc->read_addr_lo);
iowrite32(0, &desc->read_addr_hi);
iowrite32(lower_32_bits(dma_addr), &desc->write_addr_lo);
iowrite32(upper_32_bits(dma_addr), &desc->write_addr_hi);
iowrite32(len, &desc->len);
iowrite32(0, &desc->burst_seq_num);
iowrite32(0x00010001, &desc->stride);
iowrite32(control, &desc->control);
csrwr32(0, priv->rx_dma_desc, msgdma_descroffs(read_addr_lo));
csrwr32(0, priv->rx_dma_desc, msgdma_descroffs(read_addr_hi));
csrwr32(lower_32_bits(dma_addr), priv->rx_dma_desc,
msgdma_descroffs(write_addr_lo));
csrwr32(upper_32_bits(dma_addr), priv->rx_dma_desc,
msgdma_descroffs(write_addr_hi));
csrwr32(len, priv->rx_dma_desc, msgdma_descroffs(len));
csrwr32(0, priv->rx_dma_desc, msgdma_descroffs(burst_seq_num));
csrwr32(0x00010001, priv->rx_dma_desc, msgdma_descroffs(stride));
csrwr32(control, priv->rx_dma_desc, msgdma_descroffs(control));
}
/* status is returned on upper 16 bits,
@ -190,14 +191,13 @@ u32 msgdma_rx_status(struct altera_tse_private *priv)
u32 rxstatus = 0;
u32 pktlength;
u32 pktstatus;
struct msgdma_csr *rxcsr =
(struct msgdma_csr *)priv->rx_dma_csr;
struct msgdma_response *rxresp =
(struct msgdma_response *)priv->rx_dma_resp;
if (ioread32(&rxcsr->resp_fill_level) & 0xffff) {
pktlength = ioread32(&rxresp->bytes_transferred);
pktstatus = ioread32(&rxresp->status);
if (csrrd32(priv->rx_dma_csr, msgdma_csroffs(resp_fill_level))
& 0xffff) {
pktlength = csrrd32(priv->rx_dma_resp,
msgdma_respoffs(bytes_transferred));
pktstatus = csrrd32(priv->rx_dma_resp,
msgdma_respoffs(status));
rxstatus = pktstatus;
rxstatus = rxstatus << 16;
rxstatus |= (pktlength & 0xffff);

View File

@ -17,15 +17,6 @@
#ifndef __ALTERA_MSGDMAHW_H__
#define __ALTERA_MSGDMAHW_H__
/* mSGDMA standard descriptor format
*/
struct msgdma_desc {
u32 read_addr; /* data buffer source address */
u32 write_addr; /* data buffer destination address */
u32 len; /* the number of bytes to transfer per descriptor */
u32 control; /* characteristics of the transfer */
};
/* mSGDMA extended descriptor format
*/
struct msgdma_extended_desc {
@ -159,6 +150,10 @@ struct msgdma_response {
u32 status;
};
#define msgdma_respoffs(a) (offsetof(struct msgdma_response, a))
#define msgdma_csroffs(a) (offsetof(struct msgdma_csr, a))
#define msgdma_descroffs(a) (offsetof(struct msgdma_extended_desc, a))
/* mSGDMA response register bit definitions
*/
#define MSGDMA_RESP_EARLY_TERM BIT(8)

View File

@ -20,8 +20,8 @@
#include "altera_sgdmahw.h"
#include "altera_sgdma.h"
static void sgdma_setup_descrip(struct sgdma_descrip *desc,
struct sgdma_descrip *ndesc,
static void sgdma_setup_descrip(struct sgdma_descrip __iomem *desc,
struct sgdma_descrip __iomem *ndesc,
dma_addr_t ndesc_phys,
dma_addr_t raddr,
dma_addr_t waddr,
@ -31,17 +31,17 @@ static void sgdma_setup_descrip(struct sgdma_descrip *desc,
int wfixed);
static int sgdma_async_write(struct altera_tse_private *priv,
struct sgdma_descrip *desc);
struct sgdma_descrip __iomem *desc);
static int sgdma_async_read(struct altera_tse_private *priv);
static dma_addr_t
sgdma_txphysaddr(struct altera_tse_private *priv,
struct sgdma_descrip *desc);
struct sgdma_descrip __iomem *desc);
static dma_addr_t
sgdma_rxphysaddr(struct altera_tse_private *priv,
struct sgdma_descrip *desc);
struct sgdma_descrip __iomem *desc);
static int sgdma_txbusy(struct altera_tse_private *priv);
@ -79,7 +79,8 @@ int sgdma_initialize(struct altera_tse_private *priv)
priv->rxdescphys = (dma_addr_t) 0;
priv->txdescphys = (dma_addr_t) 0;
priv->rxdescphys = dma_map_single(priv->device, priv->rx_dma_desc,
priv->rxdescphys = dma_map_single(priv->device,
(void __force *)priv->rx_dma_desc,
priv->rxdescmem, DMA_BIDIRECTIONAL);
if (dma_mapping_error(priv->device, priv->rxdescphys)) {
@ -88,7 +89,8 @@ int sgdma_initialize(struct altera_tse_private *priv)
return -EINVAL;
}
priv->txdescphys = dma_map_single(priv->device, priv->tx_dma_desc,
priv->txdescphys = dma_map_single(priv->device,
(void __force *)priv->tx_dma_desc,
priv->txdescmem, DMA_TO_DEVICE);
if (dma_mapping_error(priv->device, priv->txdescphys)) {
@ -98,8 +100,8 @@ int sgdma_initialize(struct altera_tse_private *priv)
}
/* Initialize descriptor memory to all 0's, sync memory to cache */
memset(priv->tx_dma_desc, 0, priv->txdescmem);
memset(priv->rx_dma_desc, 0, priv->rxdescmem);
memset_io(priv->tx_dma_desc, 0, priv->txdescmem);
memset_io(priv->rx_dma_desc, 0, priv->rxdescmem);
dma_sync_single_for_device(priv->device, priv->txdescphys,
priv->txdescmem, DMA_TO_DEVICE);
@ -126,22 +128,15 @@ void sgdma_uninitialize(struct altera_tse_private *priv)
*/
void sgdma_reset(struct altera_tse_private *priv)
{
u32 *ptxdescripmem = (u32 *)priv->tx_dma_desc;
u32 txdescriplen = priv->txdescmem;
u32 *prxdescripmem = (u32 *)priv->rx_dma_desc;
u32 rxdescriplen = priv->rxdescmem;
struct sgdma_csr *ptxsgdma = (struct sgdma_csr *)priv->tx_dma_csr;
struct sgdma_csr *prxsgdma = (struct sgdma_csr *)priv->rx_dma_csr;
/* Initialize descriptor memory to 0 */
memset(ptxdescripmem, 0, txdescriplen);
memset(prxdescripmem, 0, rxdescriplen);
memset_io(priv->tx_dma_desc, 0, priv->txdescmem);
memset_io(priv->rx_dma_desc, 0, priv->rxdescmem);
iowrite32(SGDMA_CTRLREG_RESET, &ptxsgdma->control);
iowrite32(0, &ptxsgdma->control);
csrwr32(SGDMA_CTRLREG_RESET, priv->tx_dma_csr, sgdma_csroffs(control));
csrwr32(0, priv->tx_dma_csr, sgdma_csroffs(control));
iowrite32(SGDMA_CTRLREG_RESET, &prxsgdma->control);
iowrite32(0, &prxsgdma->control);
csrwr32(SGDMA_CTRLREG_RESET, priv->rx_dma_csr, sgdma_csroffs(control));
csrwr32(0, priv->rx_dma_csr, sgdma_csroffs(control));
}
/* For SGDMA, interrupts remain enabled after initially enabling,
@ -167,14 +162,14 @@ void sgdma_disable_txirq(struct altera_tse_private *priv)
void sgdma_clear_rxirq(struct altera_tse_private *priv)
{
struct sgdma_csr *csr = (struct sgdma_csr *)priv->rx_dma_csr;
tse_set_bit(&csr->control, SGDMA_CTRLREG_CLRINT);
tse_set_bit(priv->rx_dma_csr, sgdma_csroffs(control),
SGDMA_CTRLREG_CLRINT);
}
void sgdma_clear_txirq(struct altera_tse_private *priv)
{
struct sgdma_csr *csr = (struct sgdma_csr *)priv->tx_dma_csr;
tse_set_bit(&csr->control, SGDMA_CTRLREG_CLRINT);
tse_set_bit(priv->tx_dma_csr, sgdma_csroffs(control),
SGDMA_CTRLREG_CLRINT);
}
/* transmits buffer through SGDMA. Returns number of buffers
@ -184,12 +179,11 @@ void sgdma_clear_txirq(struct altera_tse_private *priv)
*/
int sgdma_tx_buffer(struct altera_tse_private *priv, struct tse_buffer *buffer)
{
int pktstx = 0;
struct sgdma_descrip *descbase =
(struct sgdma_descrip *)priv->tx_dma_desc;
struct sgdma_descrip __iomem *descbase =
(struct sgdma_descrip __iomem *)priv->tx_dma_desc;
struct sgdma_descrip *cdesc = &descbase[0];
struct sgdma_descrip *ndesc = &descbase[1];
struct sgdma_descrip __iomem *cdesc = &descbase[0];
struct sgdma_descrip __iomem *ndesc = &descbase[1];
/* wait 'til the tx sgdma is ready for the next transmit request */
if (sgdma_txbusy(priv))
@ -205,7 +199,7 @@ int sgdma_tx_buffer(struct altera_tse_private *priv, struct tse_buffer *buffer)
0, /* read fixed */
SGDMA_CONTROL_WR_FIXED); /* Generate SOP */
pktstx = sgdma_async_write(priv, cdesc);
sgdma_async_write(priv, cdesc);
/* enqueue the request to the pending transmit queue */
queue_tx(priv, buffer);
@ -219,10 +213,10 @@ int sgdma_tx_buffer(struct altera_tse_private *priv, struct tse_buffer *buffer)
u32 sgdma_tx_completions(struct altera_tse_private *priv)
{
u32 ready = 0;
struct sgdma_descrip *desc = (struct sgdma_descrip *)priv->tx_dma_desc;
if (!sgdma_txbusy(priv) &&
((desc->control & SGDMA_CONTROL_HW_OWNED) == 0) &&
((csrrd8(priv->tx_dma_desc, sgdma_descroffs(control))
& SGDMA_CONTROL_HW_OWNED) == 0) &&
(dequeue_tx(priv))) {
ready = 1;
}
@ -246,32 +240,31 @@ void sgdma_add_rx_desc(struct altera_tse_private *priv,
*/
u32 sgdma_rx_status(struct altera_tse_private *priv)
{
struct sgdma_csr *csr = (struct sgdma_csr *)priv->rx_dma_csr;
struct sgdma_descrip *base = (struct sgdma_descrip *)priv->rx_dma_desc;
struct sgdma_descrip *desc = NULL;
int pktsrx;
unsigned int rxstatus = 0;
unsigned int pktlength = 0;
unsigned int pktstatus = 0;
struct sgdma_descrip __iomem *base =
(struct sgdma_descrip __iomem *)priv->rx_dma_desc;
struct sgdma_descrip __iomem *desc = NULL;
struct tse_buffer *rxbuffer = NULL;
unsigned int rxstatus = 0;
u32 sts = ioread32(&csr->status);
u32 sts = csrrd32(priv->rx_dma_csr, sgdma_csroffs(status));
desc = &base[0];
if (sts & SGDMA_STSREG_EOP) {
unsigned int pktlength = 0;
unsigned int pktstatus = 0;
dma_sync_single_for_cpu(priv->device,
priv->rxdescphys,
priv->sgdmadesclen,
DMA_FROM_DEVICE);
pktlength = desc->bytes_xferred;
pktstatus = desc->status & 0x3f;
rxstatus = pktstatus;
pktlength = csrrd16(desc, sgdma_descroffs(bytes_xferred));
pktstatus = csrrd8(desc, sgdma_descroffs(status));
rxstatus = pktstatus & ~SGDMA_STATUS_EOP;
rxstatus = rxstatus << 16;
rxstatus |= (pktlength & 0xffff);
if (rxstatus) {
desc->status = 0;
csrwr8(0, desc, sgdma_descroffs(status));
rxbuffer = dequeue_rx(priv);
if (rxbuffer == NULL)
@ -279,12 +272,12 @@ u32 sgdma_rx_status(struct altera_tse_private *priv)
"sgdma rx and rx queue empty!\n");
/* Clear control */
iowrite32(0, &csr->control);
csrwr32(0, priv->rx_dma_csr, sgdma_csroffs(control));
/* clear status */
iowrite32(0xf, &csr->status);
csrwr32(0xf, priv->rx_dma_csr, sgdma_csroffs(status));
/* kick the rx sgdma after reaping this descriptor */
pktsrx = sgdma_async_read(priv);
sgdma_async_read(priv);
} else {
/* If the SGDMA indicated an end of packet on recv,
@ -298,10 +291,11 @@ u32 sgdma_rx_status(struct altera_tse_private *priv)
*/
netdev_err(priv->dev,
"SGDMA RX Error Info: %x, %x, %x\n",
sts, desc->status, rxstatus);
sts, csrrd8(desc, sgdma_descroffs(status)),
rxstatus);
}
} else if (sts == 0) {
pktsrx = sgdma_async_read(priv);
sgdma_async_read(priv);
}
return rxstatus;
@ -309,8 +303,8 @@ u32 sgdma_rx_status(struct altera_tse_private *priv)
/* Private functions */
static void sgdma_setup_descrip(struct sgdma_descrip *desc,
struct sgdma_descrip *ndesc,
static void sgdma_setup_descrip(struct sgdma_descrip __iomem *desc,
struct sgdma_descrip __iomem *ndesc,
dma_addr_t ndesc_phys,
dma_addr_t raddr,
dma_addr_t waddr,
@ -320,27 +314,30 @@ static void sgdma_setup_descrip(struct sgdma_descrip *desc,
int wfixed)
{
/* Clear the next descriptor as not owned by hardware */
u32 ctrl = ndesc->control;
ctrl &= ~SGDMA_CONTROL_HW_OWNED;
ndesc->control = ctrl;
ctrl = 0;
u32 ctrl = csrrd8(ndesc, sgdma_descroffs(control));
ctrl &= ~SGDMA_CONTROL_HW_OWNED;
csrwr8(ctrl, ndesc, sgdma_descroffs(control));
ctrl = SGDMA_CONTROL_HW_OWNED;
ctrl |= generate_eop;
ctrl |= rfixed;
ctrl |= wfixed;
/* Channel is implicitly zero, initialized to 0 by default */
csrwr32(lower_32_bits(raddr), desc, sgdma_descroffs(raddr));
csrwr32(lower_32_bits(waddr), desc, sgdma_descroffs(waddr));
desc->raddr = raddr;
desc->waddr = waddr;
desc->next = lower_32_bits(ndesc_phys);
desc->control = ctrl;
desc->status = 0;
desc->rburst = 0;
desc->wburst = 0;
desc->bytes = length;
desc->bytes_xferred = 0;
csrwr32(0, desc, sgdma_descroffs(pad1));
csrwr32(0, desc, sgdma_descroffs(pad2));
csrwr32(lower_32_bits(ndesc_phys), desc, sgdma_descroffs(next));
csrwr8(ctrl, desc, sgdma_descroffs(control));
csrwr8(0, desc, sgdma_descroffs(status));
csrwr8(0, desc, sgdma_descroffs(wburst));
csrwr8(0, desc, sgdma_descroffs(rburst));
csrwr16(length, desc, sgdma_descroffs(bytes));
csrwr16(0, desc, sgdma_descroffs(bytes_xferred));
}
/* If hardware is busy, don't restart async read.
@ -351,12 +348,11 @@ static void sgdma_setup_descrip(struct sgdma_descrip *desc,
*/
static int sgdma_async_read(struct altera_tse_private *priv)
{
struct sgdma_csr *csr = (struct sgdma_csr *)priv->rx_dma_csr;
struct sgdma_descrip *descbase =
(struct sgdma_descrip *)priv->rx_dma_desc;
struct sgdma_descrip __iomem *descbase =
(struct sgdma_descrip __iomem *)priv->rx_dma_desc;
struct sgdma_descrip *cdesc = &descbase[0];
struct sgdma_descrip *ndesc = &descbase[1];
struct sgdma_descrip __iomem *cdesc = &descbase[0];
struct sgdma_descrip __iomem *ndesc = &descbase[1];
struct tse_buffer *rxbuffer = NULL;
@ -382,11 +378,13 @@ static int sgdma_async_read(struct altera_tse_private *priv)
priv->sgdmadesclen,
DMA_TO_DEVICE);
iowrite32(lower_32_bits(sgdma_rxphysaddr(priv, cdesc)),
&csr->next_descrip);
csrwr32(lower_32_bits(sgdma_rxphysaddr(priv, cdesc)),
priv->rx_dma_csr,
sgdma_csroffs(next_descrip));
iowrite32((priv->rxctrlreg | SGDMA_CTRLREG_START),
&csr->control);
csrwr32((priv->rxctrlreg | SGDMA_CTRLREG_START),
priv->rx_dma_csr,
sgdma_csroffs(control));
return 1;
}
@ -395,32 +393,32 @@ static int sgdma_async_read(struct altera_tse_private *priv)
}
static int sgdma_async_write(struct altera_tse_private *priv,
struct sgdma_descrip *desc)
struct sgdma_descrip __iomem *desc)
{
struct sgdma_csr *csr = (struct sgdma_csr *)priv->tx_dma_csr;
if (sgdma_txbusy(priv))
return 0;
/* clear control and status */
iowrite32(0, &csr->control);
iowrite32(0x1f, &csr->status);
csrwr32(0, priv->tx_dma_csr, sgdma_csroffs(control));
csrwr32(0x1f, priv->tx_dma_csr, sgdma_csroffs(status));
dma_sync_single_for_device(priv->device, priv->txdescphys,
priv->sgdmadesclen, DMA_TO_DEVICE);
iowrite32(lower_32_bits(sgdma_txphysaddr(priv, desc)),
&csr->next_descrip);
csrwr32(lower_32_bits(sgdma_txphysaddr(priv, desc)),
priv->tx_dma_csr,
sgdma_csroffs(next_descrip));
iowrite32((priv->txctrlreg | SGDMA_CTRLREG_START),
&csr->control);
csrwr32((priv->txctrlreg | SGDMA_CTRLREG_START),
priv->tx_dma_csr,
sgdma_csroffs(control));
return 1;
}
static dma_addr_t
sgdma_txphysaddr(struct altera_tse_private *priv,
struct sgdma_descrip *desc)
struct sgdma_descrip __iomem *desc)
{
dma_addr_t paddr = priv->txdescmem_busaddr;
uintptr_t offs = (uintptr_t)desc - (uintptr_t)priv->tx_dma_desc;
@ -429,7 +427,7 @@ sgdma_txphysaddr(struct altera_tse_private *priv,
static dma_addr_t
sgdma_rxphysaddr(struct altera_tse_private *priv,
struct sgdma_descrip *desc)
struct sgdma_descrip __iomem *desc)
{
dma_addr_t paddr = priv->rxdescmem_busaddr;
uintptr_t offs = (uintptr_t)desc - (uintptr_t)priv->rx_dma_desc;
@ -518,8 +516,8 @@ queue_rx_peekhead(struct altera_tse_private *priv)
*/
static int sgdma_rxbusy(struct altera_tse_private *priv)
{
struct sgdma_csr *csr = (struct sgdma_csr *)priv->rx_dma_csr;
return ioread32(&csr->status) & SGDMA_STSREG_BUSY;
return csrrd32(priv->rx_dma_csr, sgdma_csroffs(status))
& SGDMA_STSREG_BUSY;
}
/* waits for the tx sgdma to finish it's current operation, returns 0
@ -528,13 +526,14 @@ static int sgdma_rxbusy(struct altera_tse_private *priv)
static int sgdma_txbusy(struct altera_tse_private *priv)
{
int delay = 0;
struct sgdma_csr *csr = (struct sgdma_csr *)priv->tx_dma_csr;
/* if DMA is busy, wait for current transactino to finish */
while ((ioread32(&csr->status) & SGDMA_STSREG_BUSY) && (delay++ < 100))
while ((csrrd32(priv->tx_dma_csr, sgdma_csroffs(status))
& SGDMA_STSREG_BUSY) && (delay++ < 100))
udelay(1);
if (ioread32(&csr->status) & SGDMA_STSREG_BUSY) {
if (csrrd32(priv->tx_dma_csr, sgdma_csroffs(status))
& SGDMA_STSREG_BUSY) {
netdev_err(priv->dev, "timeout waiting for tx dma\n");
return 1;
}

View File

@ -19,16 +19,16 @@
/* SGDMA descriptor structure */
struct sgdma_descrip {
unsigned int raddr; /* address of data to be read */
unsigned int pad1;
unsigned int waddr;
unsigned int pad2;
unsigned int next;
unsigned int pad3;
unsigned short bytes;
unsigned char rburst;
unsigned char wburst;
unsigned short bytes_xferred; /* 16 bits, bytes xferred */
u32 raddr; /* address of data to be read */
u32 pad1;
u32 waddr;
u32 pad2;
u32 next;
u32 pad3;
u16 bytes;
u8 rburst;
u8 wburst;
u16 bytes_xferred; /* 16 bits, bytes xferred */
/* bit 0: error
* bit 1: length error
@ -39,7 +39,7 @@ struct sgdma_descrip {
* bit 6: reserved
* bit 7: status eop for recv case
*/
unsigned char status;
u8 status;
/* bit 0: eop
* bit 1: read_fixed
@ -47,7 +47,7 @@ struct sgdma_descrip {
* bits 3,4,5,6: Channel (always 0)
* bit 7: hardware owned
*/
unsigned char control;
u8 control;
} __packed;
@ -101,6 +101,8 @@ struct sgdma_csr {
u32 pad3[3];
};
#define sgdma_csroffs(a) (offsetof(struct sgdma_csr, a))
#define sgdma_descroffs(a) (offsetof(struct sgdma_descrip, a))
#define SGDMA_STSREG_ERR BIT(0) /* Error */
#define SGDMA_STSREG_EOP BIT(1) /* EOP */

View File

@ -357,6 +357,8 @@ struct altera_tse_mac {
u32 reserved5[42];
};
#define tse_csroffs(a) (offsetof(struct altera_tse_mac, a))
/* Transmit and Receive Command Registers Bit Definitions
*/
#define ALTERA_TSE_TX_CMD_STAT_OMIT_CRC BIT(17)
@ -487,4 +489,49 @@ struct altera_tse_private {
*/
void altera_tse_set_ethtool_ops(struct net_device *);
static inline
u32 csrrd32(void __iomem *mac, size_t offs)
{
void __iomem *paddr = (void __iomem *)((uintptr_t)mac + offs);
return readl(paddr);
}
static inline
u16 csrrd16(void __iomem *mac, size_t offs)
{
void __iomem *paddr = (void __iomem *)((uintptr_t)mac + offs);
return readw(paddr);
}
static inline
u8 csrrd8(void __iomem *mac, size_t offs)
{
void __iomem *paddr = (void __iomem *)((uintptr_t)mac + offs);
return readb(paddr);
}
static inline
void csrwr32(u32 val, void __iomem *mac, size_t offs)
{
void __iomem *paddr = (void __iomem *)((uintptr_t)mac + offs);
writel(val, paddr);
}
static inline
void csrwr16(u16 val, void __iomem *mac, size_t offs)
{
void __iomem *paddr = (void __iomem *)((uintptr_t)mac + offs);
writew(val, paddr);
}
static inline
void csrwr8(u8 val, void __iomem *mac, size_t offs)
{
void __iomem *paddr = (void __iomem *)((uintptr_t)mac + offs);
writeb(val, paddr);
}
#endif /* __ALTERA_TSE_H__ */

View File

@ -96,54 +96,89 @@ static void tse_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
u64 *buf)
{
struct altera_tse_private *priv = netdev_priv(dev);
struct altera_tse_mac *mac = priv->mac_dev;
u64 ext;
buf[0] = ioread32(&mac->frames_transmitted_ok);
buf[1] = ioread32(&mac->frames_received_ok);
buf[2] = ioread32(&mac->frames_check_sequence_errors);
buf[3] = ioread32(&mac->alignment_errors);
buf[0] = csrrd32(priv->mac_dev,
tse_csroffs(frames_transmitted_ok));
buf[1] = csrrd32(priv->mac_dev,
tse_csroffs(frames_received_ok));
buf[2] = csrrd32(priv->mac_dev,
tse_csroffs(frames_check_sequence_errors));
buf[3] = csrrd32(priv->mac_dev,
tse_csroffs(alignment_errors));
/* Extended aOctetsTransmittedOK counter */
ext = (u64) ioread32(&mac->msb_octets_transmitted_ok) << 32;
ext |= ioread32(&mac->octets_transmitted_ok);
ext = (u64) csrrd32(priv->mac_dev,
tse_csroffs(msb_octets_transmitted_ok)) << 32;
ext |= csrrd32(priv->mac_dev,
tse_csroffs(octets_transmitted_ok));
buf[4] = ext;
/* Extended aOctetsReceivedOK counter */
ext = (u64) ioread32(&mac->msb_octets_received_ok) << 32;
ext |= ioread32(&mac->octets_received_ok);
ext = (u64) csrrd32(priv->mac_dev,
tse_csroffs(msb_octets_received_ok)) << 32;
ext |= csrrd32(priv->mac_dev,
tse_csroffs(octets_received_ok));
buf[5] = ext;
buf[6] = ioread32(&mac->tx_pause_mac_ctrl_frames);
buf[7] = ioread32(&mac->rx_pause_mac_ctrl_frames);
buf[8] = ioread32(&mac->if_in_errors);
buf[9] = ioread32(&mac->if_out_errors);
buf[10] = ioread32(&mac->if_in_ucast_pkts);
buf[11] = ioread32(&mac->if_in_multicast_pkts);
buf[12] = ioread32(&mac->if_in_broadcast_pkts);
buf[13] = ioread32(&mac->if_out_discards);
buf[14] = ioread32(&mac->if_out_ucast_pkts);
buf[15] = ioread32(&mac->if_out_multicast_pkts);
buf[16] = ioread32(&mac->if_out_broadcast_pkts);
buf[17] = ioread32(&mac->ether_stats_drop_events);
buf[6] = csrrd32(priv->mac_dev,
tse_csroffs(tx_pause_mac_ctrl_frames));
buf[7] = csrrd32(priv->mac_dev,
tse_csroffs(rx_pause_mac_ctrl_frames));
buf[8] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_errors));
buf[9] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_errors));
buf[10] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_ucast_pkts));
buf[11] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_multicast_pkts));
buf[12] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_broadcast_pkts));
buf[13] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_discards));
buf[14] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_ucast_pkts));
buf[15] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_multicast_pkts));
buf[16] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_broadcast_pkts));
buf[17] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_drop_events));
/* Extended etherStatsOctets counter */
ext = (u64) ioread32(&mac->msb_ether_stats_octets) << 32;
ext |= ioread32(&mac->ether_stats_octets);
ext = (u64) csrrd32(priv->mac_dev,
tse_csroffs(msb_ether_stats_octets)) << 32;
ext |= csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_octets));
buf[18] = ext;
buf[19] = ioread32(&mac->ether_stats_pkts);
buf[20] = ioread32(&mac->ether_stats_undersize_pkts);
buf[21] = ioread32(&mac->ether_stats_oversize_pkts);
buf[22] = ioread32(&mac->ether_stats_pkts_64_octets);
buf[23] = ioread32(&mac->ether_stats_pkts_65to127_octets);
buf[24] = ioread32(&mac->ether_stats_pkts_128to255_octets);
buf[25] = ioread32(&mac->ether_stats_pkts_256to511_octets);
buf[26] = ioread32(&mac->ether_stats_pkts_512to1023_octets);
buf[27] = ioread32(&mac->ether_stats_pkts_1024to1518_octets);
buf[28] = ioread32(&mac->ether_stats_pkts_1519tox_octets);
buf[29] = ioread32(&mac->ether_stats_jabbers);
buf[30] = ioread32(&mac->ether_stats_fragments);
buf[19] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts));
buf[20] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_undersize_pkts));
buf[21] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_oversize_pkts));
buf[22] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_64_octets));
buf[23] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_65to127_octets));
buf[24] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_128to255_octets));
buf[25] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_256to511_octets));
buf[26] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_512to1023_octets));
buf[27] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_1024to1518_octets));
buf[28] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_1519tox_octets));
buf[29] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_jabbers));
buf[30] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_fragments));
}
static int tse_sset_count(struct net_device *dev, int sset)
@ -178,7 +213,6 @@ static void tse_get_regs(struct net_device *dev, struct ethtool_regs *regs,
{
int i;
struct altera_tse_private *priv = netdev_priv(dev);
u32 *tse_mac_regs = (u32 *)priv->mac_dev;
u32 *buf = regbuf;
/* Set version to a known value, so ethtool knows
@ -196,7 +230,7 @@ static void tse_get_regs(struct net_device *dev, struct ethtool_regs *regs,
regs->version = 1;
for (i = 0; i < TSE_NUM_REGS; i++)
buf[i] = ioread32(&tse_mac_regs[i]);
buf[i] = csrrd32(priv->mac_dev, i * 4);
}
static int tse_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)

View File

@ -100,29 +100,30 @@ static inline u32 tse_tx_avail(struct altera_tse_private *priv)
*/
static int altera_tse_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
{
struct altera_tse_mac *mac = (struct altera_tse_mac *)bus->priv;
unsigned int *mdio_regs = (unsigned int *)&mac->mdio_phy0;
u32 data;
struct net_device *ndev = bus->priv;
struct altera_tse_private *priv = netdev_priv(ndev);
/* set MDIO address */
iowrite32((mii_id & 0x1f), &mac->mdio_phy0_addr);
csrwr32((mii_id & 0x1f), priv->mac_dev,
tse_csroffs(mdio_phy0_addr));
/* get the data */
data = ioread32(&mdio_regs[regnum]) & 0xffff;
return data;
return csrrd32(priv->mac_dev,
tse_csroffs(mdio_phy0) + regnum * 4) & 0xffff;
}
static int altera_tse_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
u16 value)
{
struct altera_tse_mac *mac = (struct altera_tse_mac *)bus->priv;
unsigned int *mdio_regs = (unsigned int *)&mac->mdio_phy0;
struct net_device *ndev = bus->priv;
struct altera_tse_private *priv = netdev_priv(ndev);
/* set MDIO address */
iowrite32((mii_id & 0x1f), &mac->mdio_phy0_addr);
csrwr32((mii_id & 0x1f), priv->mac_dev,
tse_csroffs(mdio_phy0_addr));
/* write the data */
iowrite32((u32) value, &mdio_regs[regnum]);
csrwr32(value, priv->mac_dev, tse_csroffs(mdio_phy0) + regnum * 4);
return 0;
}
@ -168,7 +169,7 @@ static int altera_tse_mdio_create(struct net_device *dev, unsigned int id)
for (i = 0; i < PHY_MAX_ADDR; i++)
mdio->irq[i] = PHY_POLL;
mdio->priv = priv->mac_dev;
mdio->priv = dev;
mdio->parent = priv->device;
ret = of_mdiobus_register(mdio, mdio_node);
@ -563,7 +564,6 @@ static int tse_start_xmit(struct sk_buff *skb, struct net_device *dev)
unsigned int nopaged_len = skb_headlen(skb);
enum netdev_tx ret = NETDEV_TX_OK;
dma_addr_t dma_addr;
int txcomplete = 0;
spin_lock_bh(&priv->tx_lock);
@ -599,7 +599,7 @@ static int tse_start_xmit(struct sk_buff *skb, struct net_device *dev)
dma_sync_single_for_device(priv->device, buffer->dma_addr,
buffer->len, DMA_TO_DEVICE);
txcomplete = priv->dmaops->tx_buffer(priv, buffer);
priv->dmaops->tx_buffer(priv, buffer);
skb_tx_timestamp(skb);
@ -698,7 +698,6 @@ static struct phy_device *connect_local_phy(struct net_device *dev)
struct altera_tse_private *priv = netdev_priv(dev);
struct phy_device *phydev = NULL;
char phy_id_fmt[MII_BUS_ID_SIZE + 3];
int ret;
if (priv->phy_addr != POLL_PHY) {
snprintf(phy_id_fmt, MII_BUS_ID_SIZE + 3, PHY_ID_FMT,
@ -712,6 +711,7 @@ static struct phy_device *connect_local_phy(struct net_device *dev)
netdev_err(dev, "Could not attach to PHY\n");
} else {
int ret;
phydev = phy_find_first(priv->mdio);
if (phydev == NULL) {
netdev_err(dev, "No PHY found\n");
@ -791,7 +791,6 @@ static int init_phy(struct net_device *dev)
static void tse_update_mac_addr(struct altera_tse_private *priv, u8 *addr)
{
struct altera_tse_mac *mac = priv->mac_dev;
u32 msb;
u32 lsb;
@ -799,8 +798,8 @@ static void tse_update_mac_addr(struct altera_tse_private *priv, u8 *addr)
lsb = ((addr[5] << 8) | addr[4]) & 0xffff;
/* Set primary MAC address */
iowrite32(msb, &mac->mac_addr_0);
iowrite32(lsb, &mac->mac_addr_1);
csrwr32(msb, priv->mac_dev, tse_csroffs(mac_addr_0));
csrwr32(lsb, priv->mac_dev, tse_csroffs(mac_addr_1));
}
/* MAC software reset.
@ -811,26 +810,26 @@ static void tse_update_mac_addr(struct altera_tse_private *priv, u8 *addr)
*/
static int reset_mac(struct altera_tse_private *priv)
{
void __iomem *cmd_cfg_reg = &priv->mac_dev->command_config;
int counter;
u32 dat;
dat = ioread32(cmd_cfg_reg);
dat = csrrd32(priv->mac_dev, tse_csroffs(command_config));
dat &= ~(MAC_CMDCFG_TX_ENA | MAC_CMDCFG_RX_ENA);
dat |= MAC_CMDCFG_SW_RESET | MAC_CMDCFG_CNT_RESET;
iowrite32(dat, cmd_cfg_reg);
csrwr32(dat, priv->mac_dev, tse_csroffs(command_config));
counter = 0;
while (counter++ < ALTERA_TSE_SW_RESET_WATCHDOG_CNTR) {
if (tse_bit_is_clear(cmd_cfg_reg, MAC_CMDCFG_SW_RESET))
if (tse_bit_is_clear(priv->mac_dev, tse_csroffs(command_config),
MAC_CMDCFG_SW_RESET))
break;
udelay(1);
}
if (counter >= ALTERA_TSE_SW_RESET_WATCHDOG_CNTR) {
dat = ioread32(cmd_cfg_reg);
dat = csrrd32(priv->mac_dev, tse_csroffs(command_config));
dat &= ~MAC_CMDCFG_SW_RESET;
iowrite32(dat, cmd_cfg_reg);
csrwr32(dat, priv->mac_dev, tse_csroffs(command_config));
return -1;
}
return 0;
@ -840,41 +839,57 @@ static int reset_mac(struct altera_tse_private *priv)
*/
static int init_mac(struct altera_tse_private *priv)
{
struct altera_tse_mac *mac = priv->mac_dev;
unsigned int cmd = 0;
u32 frm_length;
/* Setup Rx FIFO */
iowrite32(priv->rx_fifo_depth - ALTERA_TSE_RX_SECTION_EMPTY,
&mac->rx_section_empty);
iowrite32(ALTERA_TSE_RX_SECTION_FULL, &mac->rx_section_full);
iowrite32(ALTERA_TSE_RX_ALMOST_EMPTY, &mac->rx_almost_empty);
iowrite32(ALTERA_TSE_RX_ALMOST_FULL, &mac->rx_almost_full);
csrwr32(priv->rx_fifo_depth - ALTERA_TSE_RX_SECTION_EMPTY,
priv->mac_dev, tse_csroffs(rx_section_empty));
csrwr32(ALTERA_TSE_RX_SECTION_FULL, priv->mac_dev,
tse_csroffs(rx_section_full));
csrwr32(ALTERA_TSE_RX_ALMOST_EMPTY, priv->mac_dev,
tse_csroffs(rx_almost_empty));
csrwr32(ALTERA_TSE_RX_ALMOST_FULL, priv->mac_dev,
tse_csroffs(rx_almost_full));
/* Setup Tx FIFO */
iowrite32(priv->tx_fifo_depth - ALTERA_TSE_TX_SECTION_EMPTY,
&mac->tx_section_empty);
iowrite32(ALTERA_TSE_TX_SECTION_FULL, &mac->tx_section_full);
iowrite32(ALTERA_TSE_TX_ALMOST_EMPTY, &mac->tx_almost_empty);
iowrite32(ALTERA_TSE_TX_ALMOST_FULL, &mac->tx_almost_full);
csrwr32(priv->tx_fifo_depth - ALTERA_TSE_TX_SECTION_EMPTY,
priv->mac_dev, tse_csroffs(tx_section_empty));
csrwr32(ALTERA_TSE_TX_SECTION_FULL, priv->mac_dev,
tse_csroffs(tx_section_full));
csrwr32(ALTERA_TSE_TX_ALMOST_EMPTY, priv->mac_dev,
tse_csroffs(tx_almost_empty));
csrwr32(ALTERA_TSE_TX_ALMOST_FULL, priv->mac_dev,
tse_csroffs(tx_almost_full));
/* MAC Address Configuration */
tse_update_mac_addr(priv, priv->dev->dev_addr);
/* MAC Function Configuration */
frm_length = ETH_HLEN + priv->dev->mtu + ETH_FCS_LEN;
iowrite32(frm_length, &mac->frm_length);
iowrite32(ALTERA_TSE_TX_IPG_LENGTH, &mac->tx_ipg_length);
csrwr32(frm_length, priv->mac_dev, tse_csroffs(frm_length));
csrwr32(ALTERA_TSE_TX_IPG_LENGTH, priv->mac_dev,
tse_csroffs(tx_ipg_length));
/* Disable RX/TX shift 16 for alignment of all received frames on 16-bit
* start address
*/
tse_set_bit(&mac->rx_cmd_stat, ALTERA_TSE_RX_CMD_STAT_RX_SHIFT16);
tse_clear_bit(&mac->tx_cmd_stat, ALTERA_TSE_TX_CMD_STAT_TX_SHIFT16 |
ALTERA_TSE_TX_CMD_STAT_OMIT_CRC);
tse_set_bit(priv->mac_dev, tse_csroffs(rx_cmd_stat),
ALTERA_TSE_RX_CMD_STAT_RX_SHIFT16);
tse_clear_bit(priv->mac_dev, tse_csroffs(tx_cmd_stat),
ALTERA_TSE_TX_CMD_STAT_TX_SHIFT16 |
ALTERA_TSE_TX_CMD_STAT_OMIT_CRC);
/* Set the MAC options */
cmd = ioread32(&mac->command_config);
cmd = csrrd32(priv->mac_dev, tse_csroffs(command_config));
cmd &= ~MAC_CMDCFG_PAD_EN; /* No padding Removal on Receive */
cmd &= ~MAC_CMDCFG_CRC_FWD; /* CRC Removal */
cmd |= MAC_CMDCFG_RX_ERR_DISC; /* Automatically discard frames
@ -889,9 +904,10 @@ static int init_mac(struct altera_tse_private *priv)
cmd &= ~MAC_CMDCFG_ETH_SPEED;
cmd &= ~MAC_CMDCFG_ENA_10;
iowrite32(cmd, &mac->command_config);
csrwr32(cmd, priv->mac_dev, tse_csroffs(command_config));
iowrite32(ALTERA_TSE_PAUSE_QUANTA, &mac->pause_quanta);
csrwr32(ALTERA_TSE_PAUSE_QUANTA, priv->mac_dev,
tse_csroffs(pause_quanta));
if (netif_msg_hw(priv))
dev_dbg(priv->device,
@ -904,15 +920,14 @@ static int init_mac(struct altera_tse_private *priv)
*/
static void tse_set_mac(struct altera_tse_private *priv, bool enable)
{
struct altera_tse_mac *mac = priv->mac_dev;
u32 value = ioread32(&mac->command_config);
u32 value = csrrd32(priv->mac_dev, tse_csroffs(command_config));
if (enable)
value |= MAC_CMDCFG_TX_ENA | MAC_CMDCFG_RX_ENA;
else
value &= ~(MAC_CMDCFG_TX_ENA | MAC_CMDCFG_RX_ENA);
iowrite32(value, &mac->command_config);
csrwr32(value, priv->mac_dev, tse_csroffs(command_config));
}
/* Change the MTU
@ -942,13 +957,12 @@ static int tse_change_mtu(struct net_device *dev, int new_mtu)
static void altera_tse_set_mcfilter(struct net_device *dev)
{
struct altera_tse_private *priv = netdev_priv(dev);
struct altera_tse_mac *mac = priv->mac_dev;
int i;
struct netdev_hw_addr *ha;
/* clear the hash filter */
for (i = 0; i < 64; i++)
iowrite32(0, &(mac->hash_table[i]));
csrwr32(0, priv->mac_dev, tse_csroffs(hash_table) + i * 4);
netdev_for_each_mc_addr(ha, dev) {
unsigned int hash = 0;
@ -964,7 +978,7 @@ static void altera_tse_set_mcfilter(struct net_device *dev)
hash = (hash << 1) | xor_bit;
}
iowrite32(1, &(mac->hash_table[hash]));
csrwr32(1, priv->mac_dev, tse_csroffs(hash_table) + hash * 4);
}
}
@ -972,12 +986,11 @@ static void altera_tse_set_mcfilter(struct net_device *dev)
static void altera_tse_set_mcfilterall(struct net_device *dev)
{
struct altera_tse_private *priv = netdev_priv(dev);
struct altera_tse_mac *mac = priv->mac_dev;
int i;
/* set the hash filter */
for (i = 0; i < 64; i++)
iowrite32(1, &(mac->hash_table[i]));
csrwr32(1, priv->mac_dev, tse_csroffs(hash_table) + i * 4);
}
/* Set or clear the multicast filter for this adaptor
@ -985,12 +998,12 @@ static void altera_tse_set_mcfilterall(struct net_device *dev)
static void tse_set_rx_mode_hashfilter(struct net_device *dev)
{
struct altera_tse_private *priv = netdev_priv(dev);
struct altera_tse_mac *mac = priv->mac_dev;
spin_lock(&priv->mac_cfg_lock);
if (dev->flags & IFF_PROMISC)
tse_set_bit(&mac->command_config, MAC_CMDCFG_PROMIS_EN);
tse_set_bit(priv->mac_dev, tse_csroffs(command_config),
MAC_CMDCFG_PROMIS_EN);
if (dev->flags & IFF_ALLMULTI)
altera_tse_set_mcfilterall(dev);
@ -1005,15 +1018,16 @@ static void tse_set_rx_mode_hashfilter(struct net_device *dev)
static void tse_set_rx_mode(struct net_device *dev)
{
struct altera_tse_private *priv = netdev_priv(dev);
struct altera_tse_mac *mac = priv->mac_dev;
spin_lock(&priv->mac_cfg_lock);
if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
!netdev_mc_empty(dev) || !netdev_uc_empty(dev))
tse_set_bit(&mac->command_config, MAC_CMDCFG_PROMIS_EN);
tse_set_bit(priv->mac_dev, tse_csroffs(command_config),
MAC_CMDCFG_PROMIS_EN);
else
tse_clear_bit(&mac->command_config, MAC_CMDCFG_PROMIS_EN);
tse_clear_bit(priv->mac_dev, tse_csroffs(command_config),
MAC_CMDCFG_PROMIS_EN);
spin_unlock(&priv->mac_cfg_lock);
}
@ -1493,7 +1507,7 @@ static int altera_tse_remove(struct platform_device *pdev)
return 0;
}
struct altera_dmaops altera_dtype_sgdma = {
static const struct altera_dmaops altera_dtype_sgdma = {
.altera_dtype = ALTERA_DTYPE_SGDMA,
.dmamask = 32,
.reset_dma = sgdma_reset,
@ -1512,7 +1526,7 @@ struct altera_dmaops altera_dtype_sgdma = {
.start_rxdma = sgdma_start_rxdma,
};
struct altera_dmaops altera_dtype_msgdma = {
static const struct altera_dmaops altera_dtype_msgdma = {
.altera_dtype = ALTERA_DTYPE_MSGDMA,
.dmamask = 64,
.reset_dma = msgdma_reset,

View File

@ -17,28 +17,28 @@
#include "altera_tse.h"
#include "altera_utils.h"
void tse_set_bit(void __iomem *ioaddr, u32 bit_mask)
void tse_set_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = ioread32(ioaddr);
u32 value = csrrd32(ioaddr, offs);
value |= bit_mask;
iowrite32(value, ioaddr);
csrwr32(value, ioaddr, offs);
}
void tse_clear_bit(void __iomem *ioaddr, u32 bit_mask)
void tse_clear_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = ioread32(ioaddr);
u32 value = csrrd32(ioaddr, offs);
value &= ~bit_mask;
iowrite32(value, ioaddr);
csrwr32(value, ioaddr, offs);
}
int tse_bit_is_set(void __iomem *ioaddr, u32 bit_mask)
int tse_bit_is_set(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = ioread32(ioaddr);
u32 value = csrrd32(ioaddr, offs);
return (value & bit_mask) ? 1 : 0;
}
int tse_bit_is_clear(void __iomem *ioaddr, u32 bit_mask)
int tse_bit_is_clear(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = ioread32(ioaddr);
u32 value = csrrd32(ioaddr, offs);
return (value & bit_mask) ? 0 : 1;
}

View File

@ -19,9 +19,9 @@
#ifndef __ALTERA_UTILS_H__
#define __ALTERA_UTILS_H__
void tse_set_bit(void __iomem *ioaddr, u32 bit_mask);
void tse_clear_bit(void __iomem *ioaddr, u32 bit_mask);
int tse_bit_is_set(void __iomem *ioaddr, u32 bit_mask);
int tse_bit_is_clear(void __iomem *ioaddr, u32 bit_mask);
void tse_set_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask);
void tse_clear_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask);
int tse_bit_is_set(void __iomem *ioaddr, size_t offs, u32 bit_mask);
int tse_bit_is_clear(void __iomem *ioaddr, size_t offs, u32 bit_mask);
#endif /* __ALTERA_UTILS_H__*/