mirror of
https://github.com/torvalds/linux.git
synced 2024-11-05 03:21:32 +00:00
684f4a4c4a
in drivers/net/eexpress.c:558, function unstick_cu()
while (!SCB_complete(rsst=scb_status(dev))) {
...
if (...)
printk(KERN_WARNING "%s: Reset timed out status %04x, retrying...\n",
dev->name,rsst);
}
but this will become
while (!((rsst = scb_status(dev) & 0x8000) != 0) ...
because of the macro:
#define SCB_complete(s) ((s&0x8000)!=0)
so rsst can only become either 0x8000 or 0, but in the latter case the
loop ends, I think the wrong timed out status is printed. This also
cleans up similar macros.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
180 lines
4.8 KiB
C
180 lines
4.8 KiB
C
/*
|
|
* eexpress.h: Intel EtherExpress16 defines
|
|
*/
|
|
|
|
/*
|
|
* EtherExpress card register addresses
|
|
* as offsets from the base IO region (dev->base_addr)
|
|
*/
|
|
|
|
#define DATAPORT 0x0000
|
|
#define WRITE_PTR 0x0002
|
|
#define READ_PTR 0x0004
|
|
#define SIGNAL_CA 0x0006
|
|
#define SET_IRQ 0x0007
|
|
#define SM_PTR 0x0008
|
|
#define MEM_Dec 0x000a
|
|
#define MEM_Ctrl 0x000b
|
|
#define MEM_Page_Ctrl 0x000c
|
|
#define Config 0x000d
|
|
#define EEPROM_Ctrl 0x000e
|
|
#define ID_PORT 0x000f
|
|
#define MEM_ECtrl 0x000f
|
|
|
|
/*
|
|
* card register defines
|
|
*/
|
|
|
|
/* SET_IRQ */
|
|
#define SIRQ_en 0x08
|
|
#define SIRQ_dis 0x00
|
|
|
|
/* EEPROM_Ctrl */
|
|
#define EC_Clk 0x01
|
|
#define EC_CS 0x02
|
|
#define EC_Wr 0x04
|
|
#define EC_Rd 0x08
|
|
#define ASIC_RST 0x40
|
|
#define i586_RST 0x80
|
|
|
|
#define eeprom_delay() { udelay(40); }
|
|
|
|
/*
|
|
* i82586 Memory Configuration
|
|
*/
|
|
|
|
/* (System Configuration Pointer) System start up block, read after 586_RST */
|
|
#define SCP_START 0xfff6
|
|
|
|
/* Intermediate System Configuration Pointer */
|
|
#define ISCP_START 0x0000
|
|
|
|
/* System Command Block */
|
|
#define SCB_START 0x0008
|
|
|
|
/* Start of buffer region. Everything before this is used for control
|
|
* structures and the CU configuration program. The memory layout is
|
|
* determined in eexp_hw_probe(), once we know how much memory is
|
|
* available on the card.
|
|
*/
|
|
|
|
#define TX_BUF_START 0x0100
|
|
|
|
#define TX_BUF_SIZE ((24+ETH_FRAME_LEN+31)&~0x1f)
|
|
#define RX_BUF_SIZE ((32+ETH_FRAME_LEN+31)&~0x1f)
|
|
|
|
/*
|
|
* SCB defines
|
|
*/
|
|
|
|
/* these functions take the SCB status word and test the relevant status bit */
|
|
#define SCB_complete(s) (((s) & 0x8000) != 0)
|
|
#define SCB_rxdframe(s) (((s) & 0x4000) != 0)
|
|
#define SCB_CUdead(s) (((s) & 0x2000) != 0)
|
|
#define SCB_RUdead(s) (((s) & 0x1000) != 0)
|
|
#define SCB_ack(s) ((s) & 0xf000)
|
|
|
|
/* Command unit status: 0=idle, 1=suspended, 2=active */
|
|
#define SCB_CUstat(s) (((s)&0x0300)>>8)
|
|
|
|
/* Receive unit status: 0=idle, 1=suspended, 2=out of resources, 4=ready */
|
|
#define SCB_RUstat(s) (((s)&0x0070)>>4)
|
|
|
|
/* SCB commands */
|
|
#define SCB_CUnop 0x0000
|
|
#define SCB_CUstart 0x0100
|
|
#define SCB_CUresume 0x0200
|
|
#define SCB_CUsuspend 0x0300
|
|
#define SCB_CUabort 0x0400
|
|
#define SCB_resetchip 0x0080
|
|
|
|
#define SCB_RUnop 0x0000
|
|
#define SCB_RUstart 0x0010
|
|
#define SCB_RUresume 0x0020
|
|
#define SCB_RUsuspend 0x0030
|
|
#define SCB_RUabort 0x0040
|
|
|
|
/*
|
|
* Command block defines
|
|
*/
|
|
|
|
#define Stat_Done(s) (((s) & 0x8000) != 0)
|
|
#define Stat_Busy(s) (((s) & 0x4000) != 0)
|
|
#define Stat_OK(s) (((s) & 0x2000) != 0)
|
|
#define Stat_Abort(s) (((s) & 0x1000) != 0)
|
|
#define Stat_STFail (((s) & 0x0800) != 0)
|
|
#define Stat_TNoCar(s) (((s) & 0x0400) != 0)
|
|
#define Stat_TNoCTS(s) (((s) & 0x0200) != 0)
|
|
#define Stat_TNoDMA(s) (((s) & 0x0100) != 0)
|
|
#define Stat_TDefer(s) (((s) & 0x0080) != 0)
|
|
#define Stat_TColl(s) (((s) & 0x0040) != 0)
|
|
#define Stat_TXColl(s) (((s) & 0x0020) != 0)
|
|
#define Stat_NoColl(s) ((s) & 0x000f)
|
|
|
|
/* Cmd_END will end AFTER the command if this is the first
|
|
* command block after an SCB_CUstart, but BEFORE the command
|
|
* for all subsequent commands. Best strategy is to place
|
|
* Cmd_INT on the last command in the sequence, followed by a
|
|
* dummy Cmd_Nop with Cmd_END after this.
|
|
*/
|
|
|
|
#define Cmd_END 0x8000
|
|
#define Cmd_SUS 0x4000
|
|
#define Cmd_INT 0x2000
|
|
|
|
#define Cmd_Nop 0x0000
|
|
#define Cmd_SetAddr 0x0001
|
|
#define Cmd_Config 0x0002
|
|
#define Cmd_MCast 0x0003
|
|
#define Cmd_Xmit 0x0004
|
|
#define Cmd_TDR 0x0005
|
|
#define Cmd_Dump 0x0006
|
|
#define Cmd_Diag 0x0007
|
|
|
|
|
|
/*
|
|
* Frame Descriptor (Receive block) defines
|
|
*/
|
|
|
|
#define FD_Done(s) (((s) & 0x8000) != 0)
|
|
#define FD_Busy(s) (((s) & 0x4000) != 0)
|
|
#define FD_OK(s) (((s) & 0x2000) != 0)
|
|
|
|
#define FD_CRC(s) (((s) & 0x0800) != 0)
|
|
#define FD_Align(s) (((s) & 0x0400) != 0)
|
|
#define FD_Resrc(s) (((s) & 0x0200) != 0)
|
|
#define FD_DMA(s) (((s) & 0x0100) != 0)
|
|
#define FD_Short(s) (((s) & 0x0080) != 0)
|
|
#define FD_NoEOF(s) (((s) & 0x0040) != 0)
|
|
|
|
struct rfd_header {
|
|
volatile unsigned long flags;
|
|
volatile unsigned short link;
|
|
volatile unsigned short rbd_offset;
|
|
volatile unsigned short dstaddr1;
|
|
volatile unsigned short dstaddr2;
|
|
volatile unsigned short dstaddr3;
|
|
volatile unsigned short srcaddr1;
|
|
volatile unsigned short srcaddr2;
|
|
volatile unsigned short srcaddr3;
|
|
volatile unsigned short length;
|
|
|
|
/* This is actually a Receive Buffer Descriptor. The way we
|
|
* arrange memory means that an RBD always follows the RFD that
|
|
* points to it, so they might as well be in the same structure.
|
|
*/
|
|
volatile unsigned short actual_count;
|
|
volatile unsigned short next_rbd;
|
|
volatile unsigned short buf_addr1;
|
|
volatile unsigned short buf_addr2;
|
|
volatile unsigned short size;
|
|
};
|
|
|
|
/* Returned data from the Time Domain Reflectometer */
|
|
|
|
#define TDR_LINKOK (1<<15)
|
|
#define TDR_XCVRPROBLEM (1<<14)
|
|
#define TDR_OPEN (1<<13)
|
|
#define TDR_SHORT (1<<12)
|
|
#define TDR_TIME 0x7ff
|