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Arbitrary alignment is now available.

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Use shared symbols.
Correct other symbol violations.
This commit is contained in:
Michael Brown 2005-05-03 09:56:57 +00:00
parent 68e90c75b6
commit 3c2851e563
1 changed files with 25 additions and 49 deletions
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74
src/drivers/net/r8169.c
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@ -282,34 +282,32 @@ struct RxDesc {
u32 buf_Haddr;
};
/* The descriptors for this card are required to be aligned on
256 byte boundaries. As the align attribute does not do more than
16 bytes of alignment it requires some extra steps. Add 256 to the
size of the array and the init_ring adjusts the alignment */
/* The descriptors for this card are required to be aligned on 256
* byte boundaries. As the align attribute does not do more than 16
* bytes of alignment it requires some extra steps. Add 256 to the
* size of the array and the init_ring adjusts the alignment.
*
* UPDATE: This is no longer true; we can request arbitrary alignment.
*/
/* Define the TX Descriptor */
static u8 tx_ring[NUM_TX_DESC * sizeof(struct TxDesc) + 256];
/* Define the TX and RX Descriptors and Buffers */
#define __align_256 __attribute__ (( aligned ( 256 ) ))
struct {
struct TxDesc tx_ring[NUM_TX_DESC] __align_256;
unsigned char txb[NUM_TX_DESC * RX_BUF_SIZE];
struct RxDesc rx_ring[NUM_RX_DESC] __align_256;
unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE];
} r8169_bufs __shared;
#define tx_ring r8169_bufs.tx_ring
#define rx_ring r8169_bufs.rx_ring
#define txb r8169_bufs.txb
#define rxb r8169_bufs.rxb
/* Create a static buffer of size RX_BUF_SZ for each
TX Descriptor. All descriptors point to a
part of this buffer */
static unsigned char txb[NUM_TX_DESC * RX_BUF_SIZE];
/* Define the RX Descriptor */
static u8 rx_ring[NUM_RX_DESC * sizeof(struct TxDesc) + 256];
/* Create a static buffer of size RX_BUF_SZ for each
RX Descriptor All descriptors point to a
part of this buffer */
static unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE];
struct rtl8169_private {
static struct rtl8169_private {
void *mmio_addr; /* memory map physical address */
int chipset;
unsigned long cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
unsigned long cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
unsigned char *TxDescArrays; /* Index of Tx Descriptor buffer */
unsigned char *RxDescArrays; /* Index of Rx Descriptor buffer */
struct TxDesc *TxDescArray; /* Index of 256-alignment Tx Descriptor buffer */
struct RxDesc *RxDescArray; /* Index of 256-alignment Rx Descriptor buffer */
unsigned char *RxBufferRing[NUM_RX_DESC]; /* Index of Rx Buffer array */
@ -324,7 +322,7 @@ static const u16 rtl8169_intr_mask =
static const unsigned int rtl8169_rx_config =
(RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
void mdio_write(int RegAddr, int value)
static void mdio_write(int RegAddr, int value)
{
int i;
@ -341,7 +339,7 @@ void mdio_write(int RegAddr, int value)
}
}
int mdio_read(int RegAddr)
static int mdio_read(int RegAddr)
{
int i, value = -1;
@ -416,7 +414,7 @@ static int rtl8169_init_board(struct pci_device *pdev)
/**************************************************************************
IRQ - Wait for a frame
***************************************************************************/
void r8169_irq ( struct nic *nic __unused, irq_action_t action ) {
static void r8169_irq ( struct nic *nic __unused, irq_action_t action ) {
int intr_status = 0;
int interested = RxUnderrun | RxOverflow | RxFIFOOver | RxErr | RxOK;
@ -641,29 +639,9 @@ RESET - Finish setting up the ethernet interface
static void r8169_reset(struct nic *nic)
{
int i;
u8 diff;
u32 TxPhyAddr, RxPhyAddr;
tpc->TxDescArrays = tx_ring;
if (tpc->TxDescArrays == 0)
printf("Allot Error");
/* Tx Desscriptor needs 256 bytes alignment; */
TxPhyAddr = virt_to_bus(tpc->TxDescArrays);
diff = 256 - (TxPhyAddr - ((TxPhyAddr >> 8) << 8));
TxPhyAddr += diff;
tpc->TxDescArray = (struct TxDesc *) (tpc->TxDescArrays + diff);
tpc->RxDescArrays = rx_ring;
/* Rx Desscriptor needs 256 bytes alignment; */
RxPhyAddr = virt_to_bus(tpc->RxDescArrays);
diff = 256 - (RxPhyAddr - ((RxPhyAddr >> 8) << 8));
RxPhyAddr += diff;
tpc->RxDescArray = (struct RxDesc *) (tpc->RxDescArrays + diff);
if (tpc->TxDescArrays == NULL || tpc->RxDescArrays == NULL) {
printf("Allocate RxDescArray or TxDescArray failed\n");
return;
}
tpc->TxDescArray = tx_ring;
tpc->RxDescArray = rx_ring;
rtl8169_init_ring(nic);
rtl8169_hw_start(nic);
@ -693,8 +671,6 @@ static void r8169_disable ( struct nic *nic __unused ) {
RTL_W32(RxMissed, 0);
tpc->TxDescArrays = NULL;
tpc->RxDescArrays = NULL;
tpc->TxDescArray = NULL;
tpc->RxDescArray = NULL;
for (i = 0; i < NUM_RX_DESC; i++) {