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Commit b0139aa1 authored by Linus Torvalds's avatar Linus Torvalds
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Merge bk://kernel.bkbits.net/davem/net-2.5 

into home.transmeta.com:/home/torvalds/v2.5/linux
parents 374046d5 660d861b
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Showing with 55 additions and 21 deletions
arch/sparc64/kernel/sys_sparc32.c
View file @ b0139aa1
......@@ -1531,7 +1531,11 @@ struct sysinfo32 {
u32 totalswap;
u32 freeswap;
unsigned short procs;
char _f[22];
unsigned short pad;
u32 totalhigh;
u32 freehigh;
u32 mem_unit;
char _f[20-2*sizeof(int)-sizeof(int)];
};
extern asmlinkage int sys_sysinfo(struct sysinfo *info);
......@@ -1540,11 +1544,30 @@ asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
{
struct sysinfo s;
int ret, err;
int bitcount = 0;
mm_segment_t old_fs = get_fs ();
set_fs (KERNEL_DS);
set_fs(KERNEL_DS);
ret = sys_sysinfo(&s);
set_fs (old_fs);
set_fs(old_fs);
/* Check to see if any memory value is too large for 32-bit and
* scale down if needed.
*/
if ((s.totalram >> 32) || (s.totalswap >> 32)) {
while (s.mem_unit < PAGE_SIZE) {
s.mem_unit <<= 1;
bitcount++;
}
s.totalram >>= bitcount;
s.freeram >>= bitcount;
s.sharedram >>= bitcount;
s.bufferram >>= bitcount;
s.totalswap >>= bitcount;
s.freeswap >>= bitcount;
s.totalhigh >>= bitcount;
s.freehigh >>= bitcount;
}
err = put_user (s.uptime, &info->uptime);
err |= __put_user (s.loads[0], &info->loads[0]);
err |= __put_user (s.loads[1], &info->loads[1]);
......@@ -1556,6 +1579,9 @@ asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
err |= __put_user (s.totalswap, &info->totalswap);
err |= __put_user (s.freeswap, &info->freeswap);
err |= __put_user (s.procs, &info->procs);
err |= __put_user (s.totalhigh, &info->totalhigh);
err |= __put_user (s.freehigh, &info->freehigh);
err |= __put_user (s.mem_unit, &info->mem_unit);
if (err)
return -EFAULT;
return ret;
......
drivers/net/wan/dscc4.c
View file @ b0139aa1
......@@ -164,7 +164,14 @@ struct RxFD {
#define SOURCE_ID(flags) (((flags) >> 28) & 0x03)
#define TO_SIZE(state) (((state) >> 16) & 0x1fff)
#define TO_STATE(len) cpu_to_le32(((len) & TxSizeMax) << 16)
/*
* Given the operating range of Linux HDLC, the 2 defines below could be
* made simpler. However they are a fine reminder for the limitations of
* the driver: it's better to stay < TxSizeMax and < RxSizeMax.
*/
#define TO_STATE_TX(len) cpu_to_le32(((len) & TxSizeMax) << 16)
#define TO_STATE_RX(len) cpu_to_le32((RX_MAX(len) % RxSizeMax) << 16)
#define RX_MAX(len) ((((len) >> 5) + 1) << 5)
#define SCC_REG_START(dpriv) (SCC_START+(dpriv->dev_id)*SCC_OFFSET)
......@@ -272,7 +279,8 @@ struct dscc4_dev_priv {
#define Idt 0x00080000
#define TxSccRes 0x01000000
#define RxSccRes 0x00010000
#define TxSizeMax 0x1fff
#define TxSizeMax 0x1fff /* Datasheet DS1 - 11.1.1.1 */
#define RxSizeMax 0x1ffc /* Datasheet DS1 - 11.1.2.1 */
#define Ccr0ClockMask 0x0000003f
#define Ccr1LoopMask 0x00000200
......@@ -467,8 +475,8 @@ static void dscc4_release_ring(struct dscc4_dev_priv *dpriv)
skbuff = dpriv->rx_skbuff;
for (i = 0; i < RX_RING_SIZE; i++) {
if (*skbuff) {
pci_unmap_single(pdev, rx_fd->data, (*skbuff)->len,
PCI_DMA_FROMDEVICE);
pci_unmap_single(pdev, rx_fd->data,
RX_MAX(HDLC_MAX_MRU), PCI_DMA_FROMDEVICE);
dev_kfree_skb(*skbuff);
}
skbuff++;
......@@ -480,17 +488,18 @@ inline int try_get_rx_skb(struct dscc4_dev_priv *dpriv, struct net_device *dev)
{
unsigned int dirty = dpriv->rx_dirty%RX_RING_SIZE;
struct RxFD *rx_fd = dpriv->rx_fd + dirty;
const int len = RX_MAX(HDLC_MAX_MRU);
struct sk_buff *skb;
int ret = 0;
skb = dev_alloc_skb(RX_MAX(HDLC_MAX_MRU));
skb = dev_alloc_skb(len);
dpriv->rx_skbuff[dirty] = skb;
if (skb) {
skb->dev = dev;
skb->protocol = htons(ETH_P_IP);
skb->protocol = hdlc_type_trans(skb, dev);
skb->mac.raw = skb->data;
rx_fd->data = pci_map_single(dpriv->pci_priv->pdev, skb->data,
skb->len, PCI_DMA_FROMDEVICE);
len, PCI_DMA_FROMDEVICE);
} else {
rx_fd->data = (u32) NULL;
ret = -1;
......@@ -613,12 +622,11 @@ static inline void dscc4_rx_skb(struct dscc4_dev_priv *dpriv,
}
pkt_len = TO_SIZE(rx_fd->state2);
pci_dma_sync_single(pdev, rx_fd->data, pkt_len, PCI_DMA_FROMDEVICE);
pci_unmap_single(pdev, rx_fd->data, pkt_len, PCI_DMA_FROMDEVICE);
pci_unmap_single(pdev, rx_fd->data, RX_MAX(HDLC_MAX_MRU), PCI_DMA_FROMDEVICE);
if ((skb->data[--pkt_len] & FrameOk) == FrameOk) {
stats->rx_packets++;
stats->rx_bytes += pkt_len;
skb->tail += pkt_len;
skb->len = pkt_len;
skb_put(skb, pkt_len);
if (netif_running(dev))
skb->protocol = hdlc_type_trans(skb, dev);
skb->dev->last_rx = jiffies;
......@@ -1029,7 +1037,7 @@ static int dscc4_start_xmit(struct sk_buff *skb, struct net_device *dev)
next = dpriv->tx_current%TX_RING_SIZE;
dpriv->tx_skbuff[next] = skb;
tx_fd = dpriv->tx_fd + next;
tx_fd->state = FrameEnd | TO_STATE(skb->len);
tx_fd->state = FrameEnd | TO_STATE_TX(skb->len);
tx_fd->data = pci_map_single(ppriv->pdev, skb->data, skb->len,
PCI_DMA_TODEVICE);
tx_fd->complete = 0x00000000;
......@@ -1223,9 +1231,9 @@ static int dscc4_clock_setting(struct dscc4_dev_priv *dpriv,
if (bps) { /* DCE */
printk(KERN_DEBUG "%s: generated RxClk (DCE)\n", dev->name);
if (settings->clock_rate != bps) {
settings->clock_rate = bps;
printk(KERN_DEBUG "%s: clock adjusted (%08d -> %08d)\n",
dev->name, dpriv->settings.clock_rate, bps);
dev->name, settings->clock_rate, bps);
settings->clock_rate = bps;
}
} else { /* DTE */
state = 0x80001000;
......@@ -1436,7 +1444,7 @@ static inline void dscc4_tx_irq(struct dscc4_pci_priv *ppriv,
* random freeze induced by null sized tx frames.
*/
tx_fd->data = tx_fd->next;
tx_fd->state = FrameEnd | TO_STATE(2*DUMMY_SKB_SIZE);
tx_fd->state = FrameEnd | TO_STATE_TX(2*DUMMY_SKB_SIZE);
tx_fd->complete = 0x00000000;
tx_fd->jiffies = 0;
......@@ -1723,7 +1731,7 @@ struct sk_buff *dscc4_init_dummy_skb(struct dscc4_dev_priv *dpriv)
skb->len = DUMMY_SKB_SIZE;
memcpy(skb->data, version, strlen(version)%DUMMY_SKB_SIZE);
tx_fd->state = FrameEnd | TO_STATE(DUMMY_SKB_SIZE);
tx_fd->state = FrameEnd | TO_STATE_TX(DUMMY_SKB_SIZE);
tx_fd->data = pci_map_single(dpriv->pci_priv->pdev, skb->data,
DUMMY_SKB_SIZE, PCI_DMA_TODEVICE);
dpriv->tx_skbuff[last] = skb;
......@@ -1754,7 +1762,7 @@ static int dscc4_init_ring(struct net_device *dev)
dpriv->tx_dirty = 0xffffffff;
i = dpriv->tx_current = 0;
do {
tx_fd->state = FrameEnd | TO_STATE(2*DUMMY_SKB_SIZE);
tx_fd->state = FrameEnd | TO_STATE_TX(2*DUMMY_SKB_SIZE);
tx_fd->complete = 0x00000000;
/* FIXME: NULL should be ok - to be tried */
tx_fd->data = dpriv->tx_fd_dma;
......@@ -1772,7 +1780,7 @@ static int dscc4_init_ring(struct net_device *dev)
rx_fd->state1 = HiDesc;
rx_fd->state2 = 0x00000000;
rx_fd->end = 0xbabeface;
rx_fd->state1 |= (RX_MAX(HDLC_MAX_MRU) << 16);
rx_fd->state1 |= TO_STATE_RX(HDLC_MAX_MRU);
// FIXME: return value verifiee mais traitement suspect
if (try_get_rx_skb(dpriv, dev) >= 0)
dpriv->rx_dirty++;
......
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