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Merge branch 'sun4i-emac-big-endian' 

Michael Weiser says:

====================
sun4i-emac: Fixes for running a big-endian kernel on Cubieboard2

the following patches are what remains to be fixed in order to allow running a
big-endian kernel on the Cubieboard2.

The first patch fixes up endianness problems with DMA descriptors in
the stmmac driver preventing it from working correctly when runnning a
big-endian kernel.

The second patch adds the ability to enable diagnostic messages in the
sun4i-emac driver which were instrumental in finding the problem fixed
by patch number three: Endianness confusion caused by dual-purpose I/O
register usage in sun4i-emac.

All of these have been tested successfully on a Cubieboard2 DualCard.

Changes since v4:
- Rebased to current master
- Removed already applied patches to sunxi-mmc and sunxi-Kconfig

Changes since v3:
- Rebased sunxi-mmc patch against Ulf's mmc.git/next
- Changed Kconfig change to enable big-endian support only for sun7i
  devices

Changes since v2:
- Fixed typo in stmmac patch causing a build failure
- Added sun4i-emac patches

Changes since v1:
- Fixed checkpatch niggles
- Added respective Cc:s
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2016-11-15 22:05:55 -05:00
parent 4780566784 934d0048d0
commit 92547f2be9
9 changed files with 218 additions and 183 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/net/ethernet/allwinner/sun4i-emac.c
View File

@ -37,6 +37,11 @@
#define EMAC_MAX_FRAME_LEN 0x0600
#define EMAC_DEFAULT_MSG_ENABLE 0x0000
static int debug = -1; /* defaults above */;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "debug message flags");
/* Transmit timeout, default 5 seconds. */
static int watchdog = 5000;
module_param(watchdog, int, 0400);
@ -225,11 +230,27 @@ static void emac_get_drvinfo(struct net_device *dev,
strlcpy(info->bus_info, dev_name(&dev->dev), sizeof(info->bus_info));
}
static u32 emac_get_msglevel(struct net_device *dev)
{
struct emac_board_info *db = netdev_priv(dev);
return db->msg_enable;
}
static void emac_set_msglevel(struct net_device *dev, u32 value)
{
struct emac_board_info *db = netdev_priv(dev);
db->msg_enable = value;
}
static const struct ethtool_ops emac_ethtool_ops = {
.get_drvinfo = emac_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = phy_ethtool_set_link_ksettings,
.get_msglevel = emac_get_msglevel,
.set_msglevel = emac_set_msglevel,
};
static unsigned int emac_setup(struct net_device *ndev)
@ -571,8 +592,7 @@ static void emac_rx(struct net_device *dev)
/* A packet ready now & Get status/length */
good_packet = true;
emac_inblk_32bit(db->membase + EMAC_RX_IO_DATA_REG,
&rxhdr, sizeof(rxhdr));
rxhdr = readl(db->membase + EMAC_RX_IO_DATA_REG);
if (netif_msg_rx_status(db))
dev_dbg(db->dev, "rxhdr: %x\n", *((int *)(&rxhdr)));
@ -804,6 +824,7 @@ static int emac_probe(struct platform_device *pdev)
db->dev = &pdev->dev;
db->ndev = ndev;
db->pdev = pdev;
db->msg_enable = netif_msg_init(debug, EMAC_DEFAULT_MSG_ENABLE);
spin_lock_init(&db->lock);

55
drivers/net/ethernet/stmicro/stmmac/chain_mode.c
View File

@ -34,7 +34,7 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
unsigned int entry = priv->cur_tx;
struct dma_desc *desc = priv->dma_tx + entry;
unsigned int nopaged_len = skb_headlen(skb);
unsigned int bmax;
unsigned int bmax, des2;
unsigned int i = 1, len;
if (priv->plat->enh_desc)
@ -44,11 +44,12 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
len = nopaged_len - bmax;
desc->des2 = dma_map_single(priv->device, skb->data,
bmax, DMA_TO_DEVICE);
if (dma_mapping_error(priv->device, desc->des2))
des2 = dma_map_single(priv->device, skb->data,
bmax, DMA_TO_DEVICE);
desc->des2 = cpu_to_le32(des2);
if (dma_mapping_error(priv->device, des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
priv->tx_skbuff_dma[entry].buf = des2;
priv->tx_skbuff_dma[entry].len = bmax;
/* do not close the descriptor and do not set own bit */
priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum, STMMAC_CHAIN_MODE,
@ -60,12 +61,13 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
desc = priv->dma_tx + entry;
if (len > bmax) {
desc->des2 = dma_map_single(priv->device,
(skb->data + bmax * i),
bmax, DMA_TO_DEVICE);
if (dma_mapping_error(priv->device, desc->des2))
des2 = dma_map_single(priv->device,
(skb->data + bmax * i),
bmax, DMA_TO_DEVICE);
desc->des2 = cpu_to_le32(des2);
if (dma_mapping_error(priv->device, des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
priv->tx_skbuff_dma[entry].buf = des2;
priv->tx_skbuff_dma[entry].len = bmax;
priv->hw->desc->prepare_tx_desc(desc, 0, bmax, csum,
STMMAC_CHAIN_MODE, 1,
@ -73,12 +75,13 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
len -= bmax;
i++;
} else {
desc->des2 = dma_map_single(priv->device,
(skb->data + bmax * i), len,
DMA_TO_DEVICE);
if (dma_mapping_error(priv->device, desc->des2))
des2 = dma_map_single(priv->device,
(skb->data + bmax * i), len,
DMA_TO_DEVICE);
desc->des2 = cpu_to_le32(des2);
if (dma_mapping_error(priv->device, des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
priv->tx_skbuff_dma[entry].buf = des2;
priv->tx_skbuff_dma[entry].len = len;
/* last descriptor can be set now */
priv->hw->desc->prepare_tx_desc(desc, 0, len, csum,
@ -119,19 +122,19 @@ static void stmmac_init_dma_chain(void *des, dma_addr_t phy_addr,
struct dma_extended_desc *p = (struct dma_extended_desc *)des;
for (i = 0; i < (size - 1); i++) {
dma_phy += sizeof(struct dma_extended_desc);
p->basic.des3 = (unsigned int)dma_phy;
p->basic.des3 = cpu_to_le32((unsigned int)dma_phy);
p++;
}
p->basic.des3 = (unsigned int)phy_addr;
p->basic.des3 = cpu_to_le32((unsigned int)phy_addr);
} else {
struct dma_desc *p = (struct dma_desc *)des;
for (i = 0; i < (size - 1); i++) {
dma_phy += sizeof(struct dma_desc);
p->des3 = (unsigned int)dma_phy;
p->des3 = cpu_to_le32((unsigned int)dma_phy);
p++;
}
p->des3 = (unsigned int)phy_addr;
p->des3 = cpu_to_le32((unsigned int)phy_addr);
}
}
@ -144,10 +147,10 @@ static void stmmac_refill_desc3(void *priv_ptr, struct dma_desc *p)
* 1588-2002 time stamping is enabled, hence reinitialize it
* to keep explicit chaining in the descriptor.
*/
p->des3 = (unsigned int)(priv->dma_rx_phy +
(((priv->dirty_rx) + 1) %
DMA_RX_SIZE) *
sizeof(struct dma_desc));
p->des3 = cpu_to_le32((unsigned int)(priv->dma_rx_phy +
(((priv->dirty_rx) + 1) %
DMA_RX_SIZE) *
sizeof(struct dma_desc)));
}
static void stmmac_clean_desc3(void *priv_ptr, struct dma_desc *p)
@ -161,9 +164,9 @@ static void stmmac_clean_desc3(void *priv_ptr, struct dma_desc *p)
* 1588-2002 time stamping is enabled, hence reinitialize it
* to keep explicit chaining in the descriptor.
*/
p->des3 = (unsigned int)((priv->dma_tx_phy +
((priv->dirty_tx + 1) % DMA_TX_SIZE))
* sizeof(struct dma_desc));
p->des3 = cpu_to_le32((unsigned int)((priv->dma_tx_phy +
((priv->dirty_tx + 1) % DMA_TX_SIZE))
* sizeof(struct dma_desc)));
}
const struct stmmac_mode_ops chain_mode_ops = {

20
drivers/net/ethernet/stmicro/stmmac/descs.h
View File

@ -87,7 +87,7 @@
#define TDES0_ERROR_SUMMARY BIT(15)
#define TDES0_IP_HEADER_ERROR BIT(16)
#define TDES0_TIME_STAMP_STATUS BIT(17)
#define TDES0_OWN BIT(31)
#define TDES0_OWN ((u32)BIT(31)) /* silence sparse */
/* TDES1 */
#define TDES1_BUFFER1_SIZE_MASK GENMASK(10, 0)
#define TDES1_BUFFER2_SIZE_MASK GENMASK(21, 11)
@ -130,7 +130,7 @@
#define ETDES0_FIRST_SEGMENT BIT(28)
#define ETDES0_LAST_SEGMENT BIT(29)
#define ETDES0_INTERRUPT BIT(30)
#define ETDES0_OWN BIT(31)
#define ETDES0_OWN ((u32)BIT(31)) /* silence sparse */
/* TDES1 */
#define ETDES1_BUFFER1_SIZE_MASK GENMASK(12, 0)
#define ETDES1_BUFFER2_SIZE_MASK GENMASK(28, 16)
@ -166,19 +166,19 @@
/* Basic descriptor structure for normal and alternate descriptors */
struct dma_desc {
unsigned int des0;
unsigned int des1;
unsigned int des2;
unsigned int des3;
__le32 des0;
__le32 des1;
__le32 des2;
__le32 des3;
};
/* Extended descriptor structure (e.g. >= databook 3.50a) */
struct dma_extended_desc {
struct dma_desc basic; /* Basic descriptors */
unsigned int des4; /* Extended Status */
unsigned int des5; /* Reserved */
unsigned int des6; /* Tx/Rx Timestamp Low */
unsigned int des7; /* Tx/Rx Timestamp High */
__le32 des4; /* Extended Status */
__le32 des5; /* Reserved */
__le32 des6; /* Tx/Rx Timestamp Low */
__le32 des7; /* Tx/Rx Timestamp High */
};
/* Transmit checksum insertion control */

48
drivers/net/ethernet/stmicro/stmmac/descs_com.h
View File

@ -35,47 +35,50 @@
/* Enhanced descriptors */
static inline void ehn_desc_rx_set_on_ring(struct dma_desc *p, int end)
{
p->des1 |= ((BUF_SIZE_8KiB - 1) << ERDES1_BUFFER2_SIZE_SHIFT)
& ERDES1_BUFFER2_SIZE_MASK;
p->des1 |= cpu_to_le32(((BUF_SIZE_8KiB - 1)
<< ERDES1_BUFFER2_SIZE_SHIFT)
& ERDES1_BUFFER2_SIZE_MASK);
if (end)
p->des1 |= ERDES1_END_RING;
p->des1 |= cpu_to_le32(ERDES1_END_RING);
}
static inline void enh_desc_end_tx_desc_on_ring(struct dma_desc *p, int end)
{
if (end)
p->des0 |= ETDES0_END_RING;
p->des0 |= cpu_to_le32(ETDES0_END_RING);
else
p->des0 &= ~ETDES0_END_RING;
p->des0 &= cpu_to_le32(~ETDES0_END_RING);
}
static inline void enh_set_tx_desc_len_on_ring(struct dma_desc *p, int len)
{
if (unlikely(len > BUF_SIZE_4KiB)) {
p->des1 |= (((len - BUF_SIZE_4KiB) << ETDES1_BUFFER2_SIZE_SHIFT)
p->des1 |= cpu_to_le32((((len - BUF_SIZE_4KiB)
<< ETDES1_BUFFER2_SIZE_SHIFT)
& ETDES1_BUFFER2_SIZE_MASK) | (BUF_SIZE_4KiB
& ETDES1_BUFFER1_SIZE_MASK);
& ETDES1_BUFFER1_SIZE_MASK));
} else
p->des1 |= (len & ETDES1_BUFFER1_SIZE_MASK);
p->des1 |= cpu_to_le32((len & ETDES1_BUFFER1_SIZE_MASK));
}
/* Normal descriptors */
static inline void ndesc_rx_set_on_ring(struct dma_desc *p, int end)
{
p->des1 |= ((BUF_SIZE_2KiB - 1) << RDES1_BUFFER2_SIZE_SHIFT)
& RDES1_BUFFER2_SIZE_MASK;
p->des1 |= cpu_to_le32(((BUF_SIZE_2KiB - 1)
<< RDES1_BUFFER2_SIZE_SHIFT)
& RDES1_BUFFER2_SIZE_MASK);
if (end)
p->des1 |= RDES1_END_RING;
p->des1 |= cpu_to_le32(RDES1_END_RING);
}
static inline void ndesc_end_tx_desc_on_ring(struct dma_desc *p, int end)
{
if (end)
p->des1 |= TDES1_END_RING;
p->des1 |= cpu_to_le32(TDES1_END_RING);
else
p->des1 &= ~TDES1_END_RING;
p->des1 &= cpu_to_le32(~TDES1_END_RING);
}
static inline void norm_set_tx_desc_len_on_ring(struct dma_desc *p, int len)
@ -83,10 +86,11 @@ static inline void norm_set_tx_desc_len_on_ring(struct dma_desc *p, int len)
if (unlikely(len > BUF_SIZE_2KiB)) {
unsigned int buffer1 = (BUF_SIZE_2KiB - 1)
& TDES1_BUFFER1_SIZE_MASK;
p->des1 |= ((((len - buffer1) << TDES1_BUFFER2_SIZE_SHIFT)
& TDES1_BUFFER2_SIZE_MASK) | buffer1);
p->des1 |= cpu_to_le32((((len - buffer1)
<< TDES1_BUFFER2_SIZE_SHIFT)
& TDES1_BUFFER2_SIZE_MASK) | buffer1);
} else
p->des1 |= (len & TDES1_BUFFER1_SIZE_MASK);
p->des1 |= cpu_to_le32((len & TDES1_BUFFER1_SIZE_MASK));
}
/* Specific functions used for Chain mode */
@ -94,32 +98,32 @@ static inline void norm_set_tx_desc_len_on_ring(struct dma_desc *p, int len)
/* Enhanced descriptors */
static inline void ehn_desc_rx_set_on_chain(struct dma_desc *p)
{
p->des1 |= ERDES1_SECOND_ADDRESS_CHAINED;
p->des1 |= cpu_to_le32(ERDES1_SECOND_ADDRESS_CHAINED);
}
static inline void enh_desc_end_tx_desc_on_chain(struct dma_desc *p)
{
p->des0 |= ETDES0_SECOND_ADDRESS_CHAINED;
p->des0 |= cpu_to_le32(ETDES0_SECOND_ADDRESS_CHAINED);
}
static inline void enh_set_tx_desc_len_on_chain(struct dma_desc *p, int len)
{
p->des1 |= (len & ETDES1_BUFFER1_SIZE_MASK);
p->des1 |= cpu_to_le32(len & ETDES1_BUFFER1_SIZE_MASK);
}
/* Normal descriptors */
static inline void ndesc_rx_set_on_chain(struct dma_desc *p, int end)
{
p->des1 |= RDES1_SECOND_ADDRESS_CHAINED;
p->des1 |= cpu_to_le32(RDES1_SECOND_ADDRESS_CHAINED);
}
static inline void ndesc_tx_set_on_chain(struct dma_desc *p)
{
p->des1 |= TDES1_SECOND_ADDRESS_CHAINED;
p->des1 |= cpu_to_le32(TDES1_SECOND_ADDRESS_CHAINED);
}
static inline void norm_set_tx_desc_len_on_chain(struct dma_desc *p, int len)
{
p->des1 |= len & TDES1_BUFFER1_SIZE_MASK;
p->des1 |= cpu_to_le32(len & TDES1_BUFFER1_SIZE_MASK);
}
#endif /* __DESC_COM_H__ */

60
drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
View File

@ -23,7 +23,7 @@ static int dwmac4_wrback_get_tx_status(void *data, struct stmmac_extra_stats *x,
unsigned int tdes3;
int ret = tx_done;
tdes3 = p->des3;
tdes3 = le32_to_cpu(p->des3);
/* Get tx owner first */
if (unlikely(tdes3 & TDES3_OWN))
@ -77,9 +77,9 @@ static int dwmac4_wrback_get_rx_status(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p)
{
struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int rdes1 = p->des1;
unsigned int rdes2 = p->des2;
unsigned int rdes3 = p->des3;
unsigned int rdes1 = le32_to_cpu(p->des1);
unsigned int rdes2 = le32_to_cpu(p->des2);
unsigned int rdes3 = le32_to_cpu(p->des3);
int message_type;
int ret = good_frame;
@ -169,42 +169,43 @@ static int dwmac4_wrback_get_rx_status(void *data, struct stmmac_extra_stats *x,
static int dwmac4_rd_get_tx_len(struct dma_desc *p)
{
return (p->des2 & TDES2_BUFFER1_SIZE_MASK);
return (le32_to_cpu(p->des2) & TDES2_BUFFER1_SIZE_MASK);
}
static int dwmac4_get_tx_owner(struct dma_desc *p)
{
return (p->des3 & TDES3_OWN) >> TDES3_OWN_SHIFT;
return (le32_to_cpu(p->des3) & TDES3_OWN) >> TDES3_OWN_SHIFT;
}
static void dwmac4_set_tx_owner(struct dma_desc *p)
{
p->des3 |= TDES3_OWN;
p->des3 |= cpu_to_le32(TDES3_OWN);
}
static void dwmac4_set_rx_owner(struct dma_desc *p)
{
p->des3 |= RDES3_OWN;
p->des3 |= cpu_to_le32(RDES3_OWN);
}
static int dwmac4_get_tx_ls(struct dma_desc *p)
{
return (p->des3 & TDES3_LAST_DESCRIPTOR) >> TDES3_LAST_DESCRIPTOR_SHIFT;
return (le32_to_cpu(p->des3) & TDES3_LAST_DESCRIPTOR)
>> TDES3_LAST_DESCRIPTOR_SHIFT;
}
static int dwmac4_wrback_get_rx_frame_len(struct dma_desc *p, int rx_coe)
{
return (p->des3 & RDES3_PACKET_SIZE_MASK);
return (le32_to_cpu(p->des3) & RDES3_PACKET_SIZE_MASK);
}
static void dwmac4_rd_enable_tx_timestamp(struct dma_desc *p)
{
p->des2 |= TDES2_TIMESTAMP_ENABLE;
p->des2 |= cpu_to_le32(TDES2_TIMESTAMP_ENABLE);
}
static int dwmac4_wrback_get_tx_timestamp_status(struct dma_desc *p)
{
return (p->des3 & TDES3_TIMESTAMP_STATUS)
return (le32_to_cpu(p->des3) & TDES3_TIMESTAMP_STATUS)
>> TDES3_TIMESTAMP_STATUS_SHIFT;
}
@ -216,9 +217,9 @@ static u64 dwmac4_wrback_get_timestamp(void *desc, u32 ats)
struct dma_desc *p = (struct dma_desc *)desc;
u64 ns;
ns = p->des0;
ns = le32_to_cpu(p->des0);
/* convert high/sec time stamp value to nanosecond */
ns += p->des1 * 1000000000ULL;
ns += le32_to_cpu(p->des1) * 1000000000ULL;
return ns;
}
@ -227,17 +228,17 @@ static int dwmac4_context_get_rx_timestamp_status(void *desc, u32 ats)
{
struct dma_desc *p = (struct dma_desc *)desc;
return (p->des1 & RDES1_TIMESTAMP_AVAILABLE)
return (le32_to_cpu(p->des1) & RDES1_TIMESTAMP_AVAILABLE)
>> RDES1_TIMESTAMP_AVAILABLE_SHIFT;
}
static void dwmac4_rd_init_rx_desc(struct dma_desc *p, int disable_rx_ic,
int mode, int end)
{
p->des3 = RDES3_OWN | RDES3_BUFFER1_VALID_ADDR;
p->des3 = cpu_to_le32(RDES3_OWN | RDES3_BUFFER1_VALID_ADDR);
if (!disable_rx_ic)
p->des3 |= RDES3_INT_ON_COMPLETION_EN;
p->des3 |= cpu_to_le32(RDES3_INT_ON_COMPLETION_EN);
}
static void dwmac4_rd_init_tx_desc(struct dma_desc *p, int mode, int end)
@ -252,9 +253,9 @@ static void dwmac4_rd_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
bool csum_flag, int mode, bool tx_own,
bool ls)
{
unsigned int tdes3 = p->des3;
unsigned int tdes3 = le32_to_cpu(p->des3);
p->des2 |= (len & TDES2_BUFFER1_SIZE_MASK);
p->des2 |= cpu_to_le32(len & TDES2_BUFFER1_SIZE_MASK);
if (is_fs)
tdes3 |= TDES3_FIRST_DESCRIPTOR;
@ -282,7 +283,7 @@ static void dwmac4_rd_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
*/
wmb();
p->des3 = tdes3;
p->des3 = cpu_to_le32(tdes3);
}
static void dwmac4_rd_prepare_tso_tx_desc(struct dma_desc *p, int is_fs,
@ -290,14 +291,14 @@ static void dwmac4_rd_prepare_tso_tx_desc(struct dma_desc *p, int is_fs,
bool ls, unsigned int tcphdrlen,
unsigned int tcppayloadlen)
{
unsigned int tdes3 = p->des3;
unsigned int tdes3 = le32_to_cpu(p->des3);
if (len1)
p->des2 |= (len1 & TDES2_BUFFER1_SIZE_MASK);
p->des2 |= cpu_to_le32((len1 & TDES2_BUFFER1_SIZE_MASK));
if (len2)
p->des2 |= (len2 << TDES2_BUFFER2_SIZE_MASK_SHIFT)
& TDES2_BUFFER2_SIZE_MASK;
p->des2 |= cpu_to_le32((len2 << TDES2_BUFFER2_SIZE_MASK_SHIFT)
& TDES2_BUFFER2_SIZE_MASK);
if (is_fs) {
tdes3 |= TDES3_FIRST_DESCRIPTOR |
@ -325,7 +326,7 @@ static void dwmac4_rd_prepare_tso_tx_desc(struct dma_desc *p, int is_fs,
*/
wmb();
p->des3 = tdes3;
p->des3 = cpu_to_le32(tdes3);
}
static void dwmac4_release_tx_desc(struct dma_desc *p, int mode)
@ -336,7 +337,7 @@ static void dwmac4_release_tx_desc(struct dma_desc *p, int mode)
static void dwmac4_rd_set_tx_ic(struct dma_desc *p)
{
p->des2 |= TDES2_INTERRUPT_ON_COMPLETION;
p->des2 |= cpu_to_le32(TDES2_INTERRUPT_ON_COMPLETION);
}
static void dwmac4_display_ring(void *head, unsigned int size, bool rx)
@ -349,7 +350,8 @@ static void dwmac4_display_ring(void *head, unsigned int size, bool rx)
for (i = 0; i < size; i++) {
pr_info("%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
i, (unsigned int)virt_to_phys(p),
p->des0, p->des1, p->des2, p->des3);
le32_to_cpu(p->des0), le32_to_cpu(p->des1),
le32_to_cpu(p->des2), le32_to_cpu(p->des3));
p++;
}
}
@ -358,8 +360,8 @@ static void dwmac4_set_mss_ctxt(struct dma_desc *p, unsigned int mss)
{
p->des0 = 0;
p->des1 = 0;
p->des2 = mss;
p->des3 = TDES3_CONTEXT_TYPE | TDES3_CTXT_TCMSSV;
p->des2 = cpu_to_le32(mss);
p->des3 = cpu_to_le32(TDES3_CONTEXT_TYPE | TDES3_CTXT_TCMSSV);
}
const struct stmmac_desc_ops dwmac4_desc_ops = {

55
drivers/net/ethernet/stmicro/stmmac/enh_desc.c
View File

@ -30,7 +30,7 @@ static int enh_desc_get_tx_status(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p, void __iomem *ioaddr)
{
struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int tdes0 = p->des0;
unsigned int tdes0 = le32_to_cpu(p->des0);
int ret = tx_done;
/* Get tx owner first */
@ -95,7 +95,7 @@ static int enh_desc_get_tx_status(void *data, struct stmmac_extra_stats *x,
static int enh_desc_get_tx_len(struct dma_desc *p)
{
return (p->des1 & ETDES1_BUFFER1_SIZE_MASK);
return (le32_to_cpu(p->des1) & ETDES1_BUFFER1_SIZE_MASK);
}
static int enh_desc_coe_rdes0(int ipc_err, int type, int payload_err)
@ -134,8 +134,8 @@ static int enh_desc_coe_rdes0(int ipc_err, int type, int payload_err)
static void enh_desc_get_ext_status(void *data, struct stmmac_extra_stats *x,
struct dma_extended_desc *p)
{
unsigned int rdes0 = p->basic.des0;
unsigned int rdes4 = p->des4;
unsigned int rdes0 = le32_to_cpu(p->basic.des0);
unsigned int rdes4 = le32_to_cpu(p->des4);
if (unlikely(rdes0 & ERDES0_RX_MAC_ADDR)) {
int message_type = (rdes4 & ERDES4_MSG_TYPE_MASK) >> 8;
@ -191,7 +191,7 @@ static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p)
{
struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int rdes0 = p->des0;
unsigned int rdes0 = le32_to_cpu(p->des0);
int ret = good_frame;
if (unlikely(rdes0 & RDES0_OWN))
@ -257,8 +257,8 @@ static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x,
static void enh_desc_init_rx_desc(struct dma_desc *p, int disable_rx_ic,
int mode, int end)
{
p->des0 |= RDES0_OWN;
p->des1 |= ((BUF_SIZE_8KiB - 1) & ERDES1_BUFFER1_SIZE_MASK);
p->des0 |= cpu_to_le32(RDES0_OWN);
p->des1 |= cpu_to_le32((BUF_SIZE_8KiB - 1) & ERDES1_BUFFER1_SIZE_MASK);
if (mode == STMMAC_CHAIN_MODE)
ehn_desc_rx_set_on_chain(p);
@ -266,12 +266,12 @@ static void enh_desc_init_rx_desc(struct dma_desc *p, int disable_rx_ic,
ehn_desc_rx_set_on_ring(p, end);
if (disable_rx_ic)
p->des1 |= ERDES1_DISABLE_IC;
p->des1 |= cpu_to_le32(ERDES1_DISABLE_IC);
}
static void enh_desc_init_tx_desc(struct dma_desc *p, int mode, int end)
{
p->des0 &= ~ETDES0_OWN;
p->des0 &= cpu_to_le32(~ETDES0_OWN);
if (mode == STMMAC_CHAIN_MODE)
enh_desc_end_tx_desc_on_chain(p);
else
@ -280,27 +280,27 @@ static void enh_desc_init_tx_desc(struct dma_desc *p, int mode, int end)
static int enh_desc_get_tx_owner(struct dma_desc *p)
{
return (p->des0 & ETDES0_OWN) >> 31;
return (le32_to_cpu(p->des0) & ETDES0_OWN) >> 31;
}
static void enh_desc_set_tx_owner(struct dma_desc *p)
{
p->des0 |= ETDES0_OWN;
p->des0 |= cpu_to_le32(ETDES0_OWN);
}
static void enh_desc_set_rx_owner(struct dma_desc *p)
{
p->des0 |= RDES0_OWN;
p->des0 |= cpu_to_le32(RDES0_OWN);
}
static int enh_desc_get_tx_ls(struct dma_desc *p)
{
return (p->des0 & ETDES0_LAST_SEGMENT) >> 29;
return (le32_to_cpu(p->des0) & ETDES0_LAST_SEGMENT) >> 29;
}
static void enh_desc_release_tx_desc(struct dma_desc *p, int mode)
{
int ter = (p->des0 & ETDES0_END_RING) >> 21;
int ter = (le32_to_cpu(p->des0) & ETDES0_END_RING) >> 21;
memset(p, 0, offsetof(struct dma_desc, des2));
if (mode == STMMAC_CHAIN_MODE)
@ -313,7 +313,7 @@ static void enh_desc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
bool csum_flag, int mode, bool tx_own,
bool ls)
{
unsigned int tdes0 = p->des0;
unsigned int tdes0 = le32_to_cpu(p->des0);
if (mode == STMMAC_CHAIN_MODE)
enh_set_tx_desc_len_on_chain(p, len);
@ -344,12 +344,12 @@ static void enh_desc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
*/
wmb();
p->des0 = tdes0;
p->des0 = cpu_to_le32(tdes0);
}
static void enh_desc_set_tx_ic(struct dma_desc *p)
{
p->des0 |= ETDES0_INTERRUPT;
p->des0 |= cpu_to_le32(ETDES0_INTERRUPT);
}
static int enh_desc_get_rx_frame_len(struct dma_desc *p, int rx_coe_type)
@ -364,18 +364,18 @@ static int enh_desc_get_rx_frame_len(struct dma_desc *p, int rx_coe_type)
if (rx_coe_type == STMMAC_RX_COE_TYPE1)
csum = 2;
return (((p->des0 & RDES0_FRAME_LEN_MASK) >> RDES0_FRAME_LEN_SHIFT) -
csum);
return (((le32_to_cpu(p->des0) & RDES0_FRAME_LEN_MASK)
>> RDES0_FRAME_LEN_SHIFT) - csum);
}
static void enh_desc_enable_tx_timestamp(struct dma_desc *p)
{
p->des0 |= ETDES0_TIME_STAMP_ENABLE;
p->des0 |= cpu_to_le32(ETDES0_TIME_STAMP_ENABLE);
}
static int enh_desc_get_tx_timestamp_status(struct dma_desc *p)
{
return (p->des0 & ETDES0_TIME_STAMP_STATUS) >> 17;
return (le32_to_cpu(p->des0) & ETDES0_TIME_STAMP_STATUS) >> 17;
}
static u64 enh_desc_get_timestamp(void *desc, u32 ats)
@ -384,13 +384,13 @@ static u64 enh_desc_get_timestamp(void *desc, u32 ats)
if (ats) {
struct dma_extended_desc *p = (struct dma_extended_desc *)desc;
ns = p->des6;
ns = le32_to_cpu(p->des6);
/* convert high/sec time stamp value to nanosecond */
ns += p->des7 * 1000000000ULL;
ns += le32_to_cpu(p->des7) * 1000000000ULL;
} else {
struct dma_desc *p = (struct dma_desc *)desc;
ns = p->des2;
ns += p->des3 * 1000000000ULL;
ns = le32_to_cpu(p->des2);
ns += le32_to_cpu(p->des3) * 1000000000ULL;
}
return ns;
@ -400,10 +400,11 @@ static int enh_desc_get_rx_timestamp_status(void *desc, u32 ats)
{
if (ats) {
struct dma_extended_desc *p = (struct dma_extended_desc *)desc;
return (p->basic.des0 & RDES0_IPC_CSUM_ERROR) >> 7;
return (le32_to_cpu(p->basic.des0) & RDES0_IPC_CSUM_ERROR) >> 7;
} else {
struct dma_desc *p = (struct dma_desc *)desc;
if ((p->des2 == 0xffffffff) && (p->des3 == 0xffffffff))
if ((le32_to_cpu(p->des2) == 0xffffffff) &&
(le32_to_cpu(p->des3) == 0xffffffff))
/* timestamp is corrupted, hence don't store it */
return 0;
else

48
drivers/net/ethernet/stmicro/stmmac/norm_desc.c
View File

@ -30,8 +30,8 @@ static int ndesc_get_tx_status(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p, void __iomem *ioaddr)
{
struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int tdes0 = p->des0;
unsigned int tdes1 = p->des1;
unsigned int tdes0 = le32_to_cpu(p->des0);
unsigned int tdes1 = le32_to_cpu(p->des1);
int ret = tx_done;
/* Get tx owner first */
@ -77,7 +77,7 @@ static int ndesc_get_tx_status(void *data, struct stmmac_extra_stats *x,
static int ndesc_get_tx_len(struct dma_desc *p)
{
return (p->des1 & RDES1_BUFFER1_SIZE_MASK);
return (le32_to_cpu(p->des1) & RDES1_BUFFER1_SIZE_MASK);
}
/* This function verifies if each incoming frame has some errors
@ -88,7 +88,7 @@ static int ndesc_get_rx_status(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p)
{
int ret = good_frame;
unsigned int rdes0 = p->des0;
unsigned int rdes0 = le32_to_cpu(p->des0);
struct net_device_stats *stats = (struct net_device_stats *)data;
if (unlikely(rdes0 & RDES0_OWN))
@ -141,8 +141,8 @@ static int ndesc_get_rx_status(void *data, struct stmmac_extra_stats *x,
static void ndesc_init_rx_desc(struct dma_desc *p, int disable_rx_ic, int mode,
int end)
{
p->des0 |= RDES0_OWN;
p->des1 |= (BUF_SIZE_2KiB - 1) & RDES1_BUFFER1_SIZE_MASK;
p->des0 |= cpu_to_le32(RDES0_OWN);
p->des1 |= cpu_to_le32((BUF_SIZE_2KiB - 1) & RDES1_BUFFER1_SIZE_MASK);
if (mode == STMMAC_CHAIN_MODE)
ndesc_rx_set_on_chain(p, end);
@ -150,12 +150,12 @@ static void ndesc_init_rx_desc(struct dma_desc *p, int disable_rx_ic, int mode,
ndesc_rx_set_on_ring(p, end);
if (disable_rx_ic)
p->des1 |= RDES1_DISABLE_IC;
p->des1 |= cpu_to_le32(RDES1_DISABLE_IC);
}
static void ndesc_init_tx_desc(struct dma_desc *p, int mode, int end)
{
p->des0 &= ~TDES0_OWN;
p->des0 &= cpu_to_le32(~TDES0_OWN);
if (mode == STMMAC_CHAIN_MODE)
ndesc_tx_set_on_chain(p);
else
@ -164,27 +164,27 @@ static void ndesc_init_tx_desc(struct dma_desc *p, int mode, int end)
static int ndesc_get_tx_owner(struct dma_desc *p)
{
return (p->des0 & TDES0_OWN) >> 31;
return (le32_to_cpu(p->des0) & TDES0_OWN) >> 31;
}
static void ndesc_set_tx_owner(struct dma_desc *p)
{
p->des0 |= TDES0_OWN;
p->des0 |= cpu_to_le32(TDES0_OWN);
}
static void ndesc_set_rx_owner(struct dma_desc *p)
{
p->des0 |= RDES0_OWN;
p->des0 |= cpu_to_le32(RDES0_OWN);
}
static int ndesc_get_tx_ls(struct dma_desc *p)
{
return (p->des1 & TDES1_LAST_SEGMENT) >> 30;
return (le32_to_cpu(p->des1) & TDES1_LAST_SEGMENT) >> 30;
}
static void ndesc_release_tx_desc(struct dma_desc *p, int mode)
{
int ter = (p->des1 & TDES1_END_RING) >> 25;
int ter = (le32_to_cpu(p->des1) & TDES1_END_RING) >> 25;
memset(p, 0, offsetof(struct dma_desc, des2));
if (mode == STMMAC_CHAIN_MODE)
@ -197,7 +197,7 @@ static void ndesc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
bool csum_flag, int mode, bool tx_own,
bool ls)
{
unsigned int tdes1 = p->des1;
unsigned int tdes1 = le32_to_cpu(p->des1);
if (is_fs)
tdes1 |= TDES1_FIRST_SEGMENT;
@ -212,7 +212,7 @@ static void ndesc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
if (ls)
tdes1 |= TDES1_LAST_SEGMENT;
p->des1 = tdes1;
p->des1 = cpu_to_le32(tdes1);
if (mode == STMMAC_CHAIN_MODE)
norm_set_tx_desc_len_on_chain(p, len);
@ -220,12 +220,12 @@ static void ndesc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
norm_set_tx_desc_len_on_ring(p, len);
if (tx_own)
p->des0 |= TDES0_OWN;
p->des0 |= cpu_to_le32(TDES0_OWN);
}
static void ndesc_set_tx_ic(struct dma_desc *p)
{
p->des1 |= TDES1_INTERRUPT;
p->des1 |= cpu_to_le32(TDES1_INTERRUPT);
}
static int ndesc_get_rx_frame_len(struct dma_desc *p, int rx_coe_type)
@ -241,19 +241,20 @@ static int ndesc_get_rx_frame_len(struct dma_desc *p, int rx_coe_type)
if (rx_coe_type == STMMAC_RX_COE_TYPE1)
csum = 2;
return (((p->des0 & RDES0_FRAME_LEN_MASK) >> RDES0_FRAME_LEN_SHIFT) -
return (((le32_to_cpu(p->des0) & RDES0_FRAME_LEN_MASK)
>> RDES0_FRAME_LEN_SHIFT) -
csum);
}
static void ndesc_enable_tx_timestamp(struct dma_desc *p)
{
p->des1 |= TDES1_TIME_STAMP_ENABLE;
p->des1 |= cpu_to_le32(TDES1_TIME_STAMP_ENABLE);
}
static int ndesc_get_tx_timestamp_status(struct dma_desc *p)
{
return (p->des0 & TDES0_TIME_STAMP_STATUS) >> 17;
return (le32_to_cpu(p->des0) & TDES0_TIME_STAMP_STATUS) >> 17;
}
static u64 ndesc_get_timestamp(void *desc, u32 ats)
@ -261,9 +262,9 @@ static u64 ndesc_get_timestamp(void *desc, u32 ats)
struct dma_desc *p = (struct dma_desc *)desc;
u64 ns;
ns = p->des2;
ns = le32_to_cpu(p->des2);
/* convert high/sec time stamp value to nanosecond */
ns += p->des3 * 1000000000ULL;
ns += le32_to_cpu(p->des3) * 1000000000ULL;
return ns;
}
@ -272,7 +273,8 @@ static int ndesc_get_rx_timestamp_status(void *desc, u32 ats)
{
struct dma_desc *p = (struct dma_desc *)desc;
if ((p->des2 == 0xffffffff) && (p->des3 == 0xffffffff))
if ((le32_to_cpu(p->des2) == 0xffffffff) &&
(le32_to_cpu(p->des3) == 0xffffffff))
/* timestamp is corrupted, hence don't store it */
return 0;
else

39
drivers/net/ethernet/stmicro/stmmac/ring_mode.c
View File

@ -34,7 +34,7 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
unsigned int entry = priv->cur_tx;
struct dma_desc *desc;
unsigned int nopaged_len = skb_headlen(skb);
unsigned int bmax, len;
unsigned int bmax, len, des2;
if (priv->extend_desc)
desc = (struct dma_desc *)(priv->dma_etx + entry);
@ -50,16 +50,17 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
if (nopaged_len > BUF_SIZE_8KiB) {
desc->des2 = dma_map_single(priv->device, skb->data,
bmax, DMA_TO_DEVICE);
if (dma_mapping_error(priv->device, desc->des2))
des2 = dma_map_single(priv->device, skb->data, bmax,
DMA_TO_DEVICE);
desc->des2 = cpu_to_le32(des2);
if (dma_mapping_error(priv->device, des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
priv->tx_skbuff_dma[entry].buf = des2;
priv->tx_skbuff_dma[entry].len = bmax;
priv->tx_skbuff_dma[entry].is_jumbo = true;
desc->des3 = desc->des2 + BUF_SIZE_4KiB;
desc->des3 = cpu_to_le32(des2 + BUF_SIZE_4KiB);
priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum,
STMMAC_RING_MODE, 0, false);
priv->tx_skbuff[entry] = NULL;
@ -70,26 +71,28 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
else
desc = priv->dma_tx + entry;
desc->des2 = dma_map_single(priv->device, skb->data + bmax,
len, DMA_TO_DEVICE);
if (dma_mapping_error(priv->device, desc->des2))
des2 = dma_map_single(priv->device, skb->data + bmax, len,
DMA_TO_DEVICE);
desc->des2 = cpu_to_le32(des2);
if (dma_mapping_error(priv->device, des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
priv->tx_skbuff_dma[entry].buf = des2;
priv->tx_skbuff_dma[entry].len = len;
priv->tx_skbuff_dma[entry].is_jumbo = true;
desc->des3 = desc->des2 + BUF_SIZE_4KiB;
desc->des3 = cpu_to_le32(des2 + BUF_SIZE_4KiB);
priv->hw->desc->prepare_tx_desc(desc, 0, len, csum,
STMMAC_RING_MODE, 1, true);
} else {
desc->des2 = dma_map_single(priv->device, skb->data,
nopaged_len, DMA_TO_DEVICE);
if (dma_mapping_error(priv->device, desc->des2))
des2 = dma_map_single(priv->device, skb->data,
nopaged_len, DMA_TO_DEVICE);
desc->des2 = cpu_to_le32(des2);
if (dma_mapping_error(priv->device, des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
priv->tx_skbuff_dma[entry].buf = des2;
priv->tx_skbuff_dma[entry].len = nopaged_len;
priv->tx_skbuff_dma[entry].is_jumbo = true;
desc->des3 = desc->des2 + BUF_SIZE_4KiB;
desc->des3 = cpu_to_le32(des2 + BUF_SIZE_4KiB);
priv->hw->desc->prepare_tx_desc(desc, 1, nopaged_len, csum,
STMMAC_RING_MODE, 0, true);
}
@ -115,13 +118,13 @@ static void stmmac_refill_desc3(void *priv_ptr, struct dma_desc *p)
/* Fill DES3 in case of RING mode */
if (priv->dma_buf_sz >= BUF_SIZE_8KiB)
p->des3 = p->des2 + BUF_SIZE_8KiB;
p->des3 = cpu_to_le32(le32_to_cpu(p->des2) + BUF_SIZE_8KiB);
}
/* In ring mode we need to fill the desc3 because it is used as buffer */
static void stmmac_init_desc3(struct dma_desc *p)
{
p->des3 = p->des2 + BUF_SIZE_8KiB;
p->des3 = cpu_to_le32(le32_to_cpu(p->des2) + BUF_SIZE_8KiB);
}
static void stmmac_clean_desc3(void *priv_ptr, struct dma_desc *p)

51
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -990,9 +990,9 @@ static int stmmac_init_rx_buffers(struct stmmac_priv *priv, struct dma_desc *p,
}
if (priv->synopsys_id >= DWMAC_CORE_4_00)
p->des0 = priv->rx_skbuff_dma[i];
p->des0 = cpu_to_le32(priv->rx_skbuff_dma[i]);
else
p->des2 = priv->rx_skbuff_dma[i];
p->des2 = cpu_to_le32(priv->rx_skbuff_dma[i]);
if ((priv->hw->mode->init_desc3) &&
(priv->dma_buf_sz == BUF_SIZE_16KiB))
@ -1946,7 +1946,7 @@ static void stmmac_tso_allocator(struct stmmac_priv *priv, unsigned int des,
priv->cur_tx = STMMAC_GET_ENTRY(priv->cur_tx, DMA_TX_SIZE);
desc = priv->dma_tx + priv->cur_tx;
desc->des0 = des + (total_len - tmp_len);
desc->des0 = cpu_to_le32(des + (total_len - tmp_len));
buff_size = tmp_len >= TSO_MAX_BUFF_SIZE ?
TSO_MAX_BUFF_SIZE : tmp_len;
@ -2048,11 +2048,11 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev)
priv->tx_skbuff_dma[first_entry].len = skb_headlen(skb);
priv->tx_skbuff[first_entry] = skb;
first->des0 = des;
first->des0 = cpu_to_le32(des);
/* Fill start of payload in buff2 of first descriptor */
if (pay_len)
first->des1 = des + proto_hdr_len;
first->des1 = cpu_to_le32(des + proto_hdr_len);
/* If needed take extra descriptors to fill the remaining payload */
tmp_pay_len = pay_len - TSO_MAX_BUFF_SIZE;
@ -2241,13 +2241,11 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
priv->tx_skbuff[entry] = NULL;
if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00)) {
desc->des0 = des;
priv->tx_skbuff_dma[entry].buf = desc->des0;
} else {
desc->des2 = des;
priv->tx_skbuff_dma[entry].buf = desc->des2;
}
priv->tx_skbuff_dma[entry].buf = des;
if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00))
desc->des0 = cpu_to_le32(des);
else
desc->des2 = cpu_to_le32(des);
priv->tx_skbuff_dma[entry].map_as_page = true;
priv->tx_skbuff_dma[entry].len = len;
@ -2318,13 +2316,11 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
if (dma_mapping_error(priv->device, des))
goto dma_map_err;
if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00)) {
first->des0 = des;
priv->tx_skbuff_dma[first_entry].buf = first->des0;
} else {
first->des2 = des;
priv->tx_skbuff_dma[first_entry].buf = first->des2;
}
priv->tx_skbuff_dma[first_entry].buf = des;
if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00))
first->des0 = cpu_to_le32(des);
else
first->des2 = cpu_to_le32(des);
priv->tx_skbuff_dma[first_entry].len = nopaged_len;
priv->tx_skbuff_dma[first_entry].last_segment = last_segment;
@ -2438,10 +2434,10 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv)
}
if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00)) {
p->des0 = priv->rx_skbuff_dma[entry];
p->des0 = cpu_to_le32(priv->rx_skbuff_dma[entry]);
p->des1 = 0;
} else {
p->des2 = priv->rx_skbuff_dma[entry];
p->des2 = cpu_to_le32(priv->rx_skbuff_dma[entry]);
}
if (priv->hw->mode->refill_desc3)
priv->hw->mode->refill_desc3(priv, p);
@ -2542,9 +2538,9 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit)
unsigned int des;
if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00))
des = p->des0;
des = le32_to_cpu(p->des0);
else
des = p->des2;
des = le32_to_cpu(p->des2);
frame_len = priv->hw->desc->get_rx_frame_len(p, coe);
@ -2901,14 +2897,17 @@ static void sysfs_display_ring(void *head, int size, int extend_desc,
x = *(u64 *) ep;
seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
i, (unsigned int)virt_to_phys(ep),
ep->basic.des0, ep->basic.des1,
ep->basic.des2, ep->basic.des3);
le32_to_cpu(ep->basic.des0),
le32_to_cpu(ep->basic.des1),
le32_to_cpu(ep->basic.des2),
le32_to_cpu(ep->basic.des3));
ep++;
} else {
x = *(u64 *) p;
seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
i, (unsigned int)virt_to_phys(ep),
p->des0, p->des1, p->des2, p->des3);
le32_to_cpu(p->des0), le32_to_cpu(p->des1),
le32_to_cpu(p->des2), le32_to_cpu(p->des3));
p++;
}
seq_printf(seq, "\n");