Extract chip specific code out of lasi_82596.c
Changes to last version:
- use netdev_alloc_skb
- make init_rx_bufs just fail and not panic, if skb alloc fails
- don/t free_irq, if request_irq failed
Thomas.
Extracted chip specific code out of lasi_82596.c and placed into a lib82596.c
to make it usable for other 82596 drivers
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
index 741780e..efbae4b 100644
--- a/drivers/net/lasi_82596.c
+++ b/drivers/net/lasi_82596.c
@@ -86,93 +86,36 @@
#include <linux/dma-mapping.h>
#include <asm/io.h>
-#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/pdc.h>
-#include <asm/cache.h>
#include <asm/parisc-device.h>
#define LASI_82596_DRIVER_VERSION "LASI 82596 driver - Revision: 1.30"
-/* DEBUG flags
- */
-
-#define DEB_INIT 0x0001
-#define DEB_PROBE 0x0002
-#define DEB_SERIOUS 0x0004
-#define DEB_ERRORS 0x0008
-#define DEB_MULTI 0x0010
-#define DEB_TDR 0x0020
-#define DEB_OPEN 0x0040
-#define DEB_RESET 0x0080
-#define DEB_ADDCMD 0x0100
-#define DEB_STATUS 0x0200
-#define DEB_STARTTX 0x0400
-#define DEB_RXADDR 0x0800
-#define DEB_TXADDR 0x1000
-#define DEB_RXFRAME 0x2000
-#define DEB_INTS 0x4000
-#define DEB_STRUCT 0x8000
-#define DEB_ANY 0xffff
-
-
-#define DEB(x,y) if (i596_debug & (x)) { y; }
-
-
-#define CHECK_WBACK(priv, addr,len) \
- do { dma_cache_sync((priv)->dev, (void *)addr, len, DMA_TO_DEVICE); } while (0)
-
-#define CHECK_INV(priv, addr,len) \
- do { dma_cache_sync((priv)->dev, (void *)addr, len, DMA_FROM_DEVICE); } while(0)
-
-#define CHECK_WBACK_INV(priv, addr,len) \
- do { dma_cache_sync((priv)->dev, (void *)addr, len, DMA_BIDIRECTIONAL); } while (0)
-
-
#define PA_I82596_RESET 0 /* Offsets relative to LASI-LAN-Addr.*/
#define PA_CPU_PORT_L_ACCESS 4
#define PA_CHANNEL_ATTENTION 8
+#define OPT_SWAP_PORT 0x0001 /* Need to wordswp on the MPU port */
-/*
- * Define various macros for Channel Attention, word swapping etc., dependent
- * on architecture. MVME and BVME are 680x0 based, otherwise it is Intel.
- */
+#define DMA_ALLOC dma_alloc_noncoherent
+#define DMA_FREE dma_free_noncoherent
+#define DMA_WBACK(ndev, addr, len) \
+ do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_TO_DEVICE); } while (0)
-#ifdef __BIG_ENDIAN
-#define WSWAPrfd(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPrbd(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPiscp(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPscb(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPcmd(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPtbd(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPchar(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define ISCP_BUSY 0x00010000
-#define MACH_IS_APRICOT 0
-#else
-#define WSWAPrfd(x) ((struct i596_rfd *)(x))
-#define WSWAPrbd(x) ((struct i596_rbd *)(x))
-#define WSWAPiscp(x) ((struct i596_iscp *)(x))
-#define WSWAPscb(x) ((struct i596_scb *)(x))
-#define WSWAPcmd(x) ((struct i596_cmd *)(x))
-#define WSWAPtbd(x) ((struct i596_tbd *)(x))
-#define WSWAPchar(x) ((char *)(x))
-#define ISCP_BUSY 0x0001
-#define MACH_IS_APRICOT 1
-#endif
+#define DMA_INV(ndev, addr, len) \
+ do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_FROM_DEVICE); } while (0)
-/*
- * The MPU_PORT command allows direct access to the 82596. With PORT access
- * the following commands are available (p5-18). The 32-bit port command
- * must be word-swapped with the most significant word written first.
- * This only applies to VME boards.
- */
-#define PORT_RESET 0x00 /* reset 82596 */
-#define PORT_SELFTEST 0x01 /* selftest */
-#define PORT_ALTSCP 0x02 /* alternate SCB address */
-#define PORT_ALTDUMP 0x03 /* Alternate DUMP address */
+#define DMA_WBACK_INV(ndev, addr, len) \
+ do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_BIDIRECTIONAL); } while (0)
-static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
+#define SYSBUS 0x0000006c;
+
+/* big endian CPU, 82596 "big" endian mode */
+#define SWAP32(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
+#define SWAP16(x) (x)
+
+#include "lib82596.c"
MODULE_AUTHOR("Richard Hirst");
MODULE_DESCRIPTION("i82596 driver");
@@ -180,255 +123,15 @@
module_param(i596_debug, int, 0);
MODULE_PARM_DESC(i596_debug, "lasi_82596 debug mask");
-/* Copy frames shorter than rx_copybreak, otherwise pass on up in
- * a full sized sk_buff. Value of 100 stolen from tulip.c (!alpha).
- */
-static int rx_copybreak = 100;
-
-#define MAX_DRIVERS 4 /* max count of drivers */
-
-#define PKT_BUF_SZ 1536
-#define MAX_MC_CNT 64
-
-#define I596_NULL ((u32)0xffffffff)
-
-#define CMD_EOL 0x8000 /* The last command of the list, stop. */
-#define CMD_SUSP 0x4000 /* Suspend after doing cmd. */
-#define CMD_INTR 0x2000 /* Interrupt after doing cmd. */
-
-#define CMD_FLEX 0x0008 /* Enable flexible memory model */
-
-enum commands {
- CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
- CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
-};
-
-#define STAT_C 0x8000 /* Set to 0 after execution */
-#define STAT_B 0x4000 /* Command being executed */
-#define STAT_OK 0x2000 /* Command executed ok */
-#define STAT_A 0x1000 /* Command aborted */
-
-#define CUC_START 0x0100
-#define CUC_RESUME 0x0200
-#define CUC_SUSPEND 0x0300
-#define CUC_ABORT 0x0400
-#define RX_START 0x0010
-#define RX_RESUME 0x0020
-#define RX_SUSPEND 0x0030
-#define RX_ABORT 0x0040
-
-#define TX_TIMEOUT 5
-
-#define OPT_SWAP_PORT 0x0001 /* Need to wordswp on the MPU port */
-
-
-struct i596_reg {
- unsigned short porthi;
- unsigned short portlo;
- u32 ca;
-};
-
-#define EOF 0x8000
-#define SIZE_MASK 0x3fff
-
-struct i596_tbd {
- unsigned short size;
- unsigned short pad;
- dma_addr_t next;
- dma_addr_t data;
- u32 cache_pad[5]; /* Total 32 bytes... */
-};
-
-/* The command structure has two 'next' pointers; v_next is the address of
- * the next command as seen by the CPU, b_next is the address of the next
- * command as seen by the 82596. The b_next pointer, as used by the 82596
- * always references the status field of the next command, rather than the
- * v_next field, because the 82596 is unaware of v_next. It may seem more
- * logical to put v_next at the end of the structure, but we cannot do that
- * because the 82596 expects other fields to be there, depending on command
- * type.
- */
-
-struct i596_cmd {
- struct i596_cmd *v_next; /* Address from CPUs viewpoint */
- unsigned short status;
- unsigned short command;
- dma_addr_t b_next; /* Address from i596 viewpoint */
-};
-
-struct tx_cmd {
- struct i596_cmd cmd;
- dma_addr_t tbd;
- unsigned short size;
- unsigned short pad;
- struct sk_buff *skb; /* So we can free it after tx */
- dma_addr_t dma_addr;
-#ifdef __LP64__
- u32 cache_pad[6]; /* Total 64 bytes... */
-#else
- u32 cache_pad[1]; /* Total 32 bytes... */
-#endif
-};
-
-struct tdr_cmd {
- struct i596_cmd cmd;
- unsigned short status;
- unsigned short pad;
-};
-
-struct mc_cmd {
- struct i596_cmd cmd;
- short mc_cnt;
- char mc_addrs[MAX_MC_CNT*6];
-};
-
-struct sa_cmd {
- struct i596_cmd cmd;
- char eth_addr[8];
-};
-
-struct cf_cmd {
- struct i596_cmd cmd;
- char i596_config[16];
-};
-
-struct i596_rfd {
- unsigned short stat;
- unsigned short cmd;
- dma_addr_t b_next; /* Address from i596 viewpoint */
- dma_addr_t rbd;
- unsigned short count;
- unsigned short size;
- struct i596_rfd *v_next; /* Address from CPUs viewpoint */
- struct i596_rfd *v_prev;
-#ifndef __LP64__
- u32 cache_pad[2]; /* Total 32 bytes... */
-#endif
-};
-
-struct i596_rbd {
- /* hardware data */
- unsigned short count;
- unsigned short zero1;
- dma_addr_t b_next;
- dma_addr_t b_data; /* Address from i596 viewpoint */
- unsigned short size;
- unsigned short zero2;
- /* driver data */
- struct sk_buff *skb;
- struct i596_rbd *v_next;
- dma_addr_t b_addr; /* This rbd addr from i596 view */
- unsigned char *v_data; /* Address from CPUs viewpoint */
- /* Total 32 bytes... */
-#ifdef __LP64__
- u32 cache_pad[4];
-#endif
-};
-
-/* These values as chosen so struct i596_private fits in one page... */
-
-#define TX_RING_SIZE 32
-#define RX_RING_SIZE 16
-
-struct i596_scb {
- unsigned short status;
- unsigned short command;
- dma_addr_t cmd;
- dma_addr_t rfd;
- u32 crc_err;
- u32 align_err;
- u32 resource_err;
- u32 over_err;
- u32 rcvdt_err;
- u32 short_err;
- unsigned short t_on;
- unsigned short t_off;
-};
-
-struct i596_iscp {
- u32 stat;
- dma_addr_t scb;
-};
-
-struct i596_scp {
- u32 sysbus;
- u32 pad;
- dma_addr_t iscp;
-};
-
-struct i596_private {
- volatile struct i596_scp scp __attribute__((aligned(32)));
- volatile struct i596_iscp iscp __attribute__((aligned(32)));
- volatile struct i596_scb scb __attribute__((aligned(32)));
- struct sa_cmd sa_cmd __attribute__((aligned(32)));
- struct cf_cmd cf_cmd __attribute__((aligned(32)));
- struct tdr_cmd tdr_cmd __attribute__((aligned(32)));
- struct mc_cmd mc_cmd __attribute__((aligned(32)));
- struct i596_rfd rfds[RX_RING_SIZE] __attribute__((aligned(32)));
- struct i596_rbd rbds[RX_RING_SIZE] __attribute__((aligned(32)));
- struct tx_cmd tx_cmds[TX_RING_SIZE] __attribute__((aligned(32)));
- struct i596_tbd tbds[TX_RING_SIZE] __attribute__((aligned(32)));
- u32 stat;
- int last_restart;
- struct i596_rfd *rfd_head;
- struct i596_rbd *rbd_head;
- struct i596_cmd *cmd_tail;
- struct i596_cmd *cmd_head;
- int cmd_backlog;
- u32 last_cmd;
- struct net_device_stats stats;
- int next_tx_cmd;
- int options;
- spinlock_t lock;
- dma_addr_t dma_addr;
- struct device *dev;
-};
-
-static const char init_setup[] =
-{
- 0x8E, /* length, prefetch on */
- 0xC8, /* fifo to 8, monitor off */
- 0x80, /* don't save bad frames */
- 0x2E, /* No source address insertion, 8 byte preamble */
- 0x00, /* priority and backoff defaults */
- 0x60, /* interframe spacing */
- 0x00, /* slot time LSB */
- 0xf2, /* slot time and retries */
- 0x00, /* promiscuous mode */
- 0x00, /* collision detect */
- 0x40, /* minimum frame length */
- 0xff,
- 0x00,
- 0x7f /* *multi IA */ };
-
-static int i596_open(struct net_device *dev);
-static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t i596_interrupt(int irq, void *dev_id);
-static int i596_close(struct net_device *dev);
-static struct net_device_stats *i596_get_stats(struct net_device *dev);
-static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
-static void i596_tx_timeout (struct net_device *dev);
-static void print_eth(unsigned char *buf, char *str);
-static void set_multicast_list(struct net_device *dev);
-
-static int rx_ring_size = RX_RING_SIZE;
-static int ticks_limit = 100;
-static int max_cmd_backlog = TX_RING_SIZE-1;
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void i596_poll_controller(struct net_device *dev);
-#endif
-
-
-static inline void CA(struct net_device *dev)
+static inline void ca(struct net_device *dev)
{
gsc_writel(0, dev->base_addr + PA_CHANNEL_ATTENTION);
}
-static inline void MPU_PORT(struct net_device *dev, int c, dma_addr_t x)
+static void mpu_port(struct net_device *dev, int c, dma_addr_t x)
{
- struct i596_private *lp = dev->priv;
+ struct i596_private *lp = netdev_priv(dev);
u32 v = (u32) (c) | (u32) (x);
u16 a, b;
@@ -446,1078 +149,15 @@
gsc_writel(b, dev->base_addr + PA_CPU_PORT_L_ACCESS);
}
-
-static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
-{
- CHECK_INV(lp, &(lp->iscp), sizeof(struct i596_iscp));
- while (--delcnt && lp->iscp.stat) {
- udelay(10);
- CHECK_INV(lp, &(lp->iscp), sizeof(struct i596_iscp));
- }
- if (!delcnt) {
- printk("%s: %s, iscp.stat %04x, didn't clear\n",
- dev->name, str, lp->iscp.stat);
- return -1;
- }
- else
- return 0;
-}
-
-
-static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
-{
- CHECK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
- while (--delcnt && lp->scb.command) {
- udelay(10);
- CHECK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
- }
- if (!delcnt) {
- printk("%s: %s, status %4.4x, cmd %4.4x.\n",
- dev->name, str, lp->scb.status, lp->scb.command);
- return -1;
- }
- else
- return 0;
-}
-
-
-static void i596_display_data(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- struct i596_cmd *cmd;
- struct i596_rfd *rfd;
- struct i596_rbd *rbd;
-
- printk("lp and scp at %p, .sysbus = %08x, .iscp = %08x\n",
- &lp->scp, lp->scp.sysbus, lp->scp.iscp);
- printk("iscp at %p, iscp.stat = %08x, .scb = %08x\n",
- &lp->iscp, lp->iscp.stat, lp->iscp.scb);
- printk("scb at %p, scb.status = %04x, .command = %04x,"
- " .cmd = %08x, .rfd = %08x\n",
- &lp->scb, lp->scb.status, lp->scb.command,
- lp->scb.cmd, lp->scb.rfd);
- printk(" errors: crc %x, align %x, resource %x,"
- " over %x, rcvdt %x, short %x\n",
- lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
- lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
- cmd = lp->cmd_head;
- while (cmd != NULL) {
- printk("cmd at %p, .status = %04x, .command = %04x, .b_next = %08x\n",
- cmd, cmd->status, cmd->command, cmd->b_next);
- cmd = cmd->v_next;
- }
- rfd = lp->rfd_head;
- printk("rfd_head = %p\n", rfd);
- do {
- printk(" %p .stat %04x, .cmd %04x, b_next %08x, rbd %08x,"
- " count %04x\n",
- rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
- rfd->count);
- rfd = rfd->v_next;
- } while (rfd != lp->rfd_head);
- rbd = lp->rbd_head;
- printk("rbd_head = %p\n", rbd);
- do {
- printk(" %p .count %04x, b_next %08x, b_data %08x, size %04x\n",
- rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
- rbd = rbd->v_next;
- } while (rbd != lp->rbd_head);
- CHECK_INV(lp, lp, sizeof(struct i596_private));
-}
-
-
-#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
-static void i596_error(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
-
- pcc2[0x28] = 1;
- pcc2[0x2b] = 0x1d;
- printk("%s: Error interrupt\n", dev->name);
- i596_display_data(dev);
-}
-#endif
-
-#define virt_to_dma(lp,v) ((lp)->dma_addr + (dma_addr_t)((unsigned long)(v)-(unsigned long)(lp)))
-
-static inline void init_rx_bufs(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- int i;
- struct i596_rfd *rfd;
- struct i596_rbd *rbd;
-
- /* First build the Receive Buffer Descriptor List */
-
- for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
- dma_addr_t dma_addr;
- struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ + 4);
-
- if (skb == NULL)
- panic("%s: alloc_skb() failed", __FILE__);
- skb_reserve(skb, 2);
- dma_addr = dma_map_single(lp->dev, skb->data,PKT_BUF_SZ,
- DMA_FROM_DEVICE);
- skb->dev = dev;
- rbd->v_next = rbd+1;
- rbd->b_next = WSWAPrbd(virt_to_dma(lp,rbd+1));
- rbd->b_addr = WSWAPrbd(virt_to_dma(lp,rbd));
- rbd->skb = skb;
- rbd->v_data = skb->data;
- rbd->b_data = WSWAPchar(dma_addr);
- rbd->size = PKT_BUF_SZ;
- }
- lp->rbd_head = lp->rbds;
- rbd = lp->rbds + rx_ring_size - 1;
- rbd->v_next = lp->rbds;
- rbd->b_next = WSWAPrbd(virt_to_dma(lp,lp->rbds));
-
- /* Now build the Receive Frame Descriptor List */
-
- for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
- rfd->rbd = I596_NULL;
- rfd->v_next = rfd+1;
- rfd->v_prev = rfd-1;
- rfd->b_next = WSWAPrfd(virt_to_dma(lp,rfd+1));
- rfd->cmd = CMD_FLEX;
- }
- lp->rfd_head = lp->rfds;
- lp->scb.rfd = WSWAPrfd(virt_to_dma(lp,lp->rfds));
- rfd = lp->rfds;
- rfd->rbd = WSWAPrbd(virt_to_dma(lp,lp->rbd_head));
- rfd->v_prev = lp->rfds + rx_ring_size - 1;
- rfd = lp->rfds + rx_ring_size - 1;
- rfd->v_next = lp->rfds;
- rfd->b_next = WSWAPrfd(virt_to_dma(lp,lp->rfds));
- rfd->cmd = CMD_EOL|CMD_FLEX;
-
- CHECK_WBACK_INV(lp, lp, sizeof(struct i596_private));
-}
-
-static inline void remove_rx_bufs(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- struct i596_rbd *rbd;
- int i;
-
- for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
- if (rbd->skb == NULL)
- break;
- dma_unmap_single(lp->dev,
- (dma_addr_t)WSWAPchar(rbd->b_data),
- PKT_BUF_SZ, DMA_FROM_DEVICE);
- dev_kfree_skb(rbd->skb);
- }
-}
-
-
-static void rebuild_rx_bufs(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- int i;
-
- /* Ensure rx frame/buffer descriptors are tidy */
-
- for (i = 0; i < rx_ring_size; i++) {
- lp->rfds[i].rbd = I596_NULL;
- lp->rfds[i].cmd = CMD_FLEX;
- }
- lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX;
- lp->rfd_head = lp->rfds;
- lp->scb.rfd = WSWAPrfd(virt_to_dma(lp,lp->rfds));
- lp->rbd_head = lp->rbds;
- lp->rfds[0].rbd = WSWAPrbd(virt_to_dma(lp,lp->rbds));
-
- CHECK_WBACK_INV(lp, lp, sizeof(struct i596_private));
-}
-
-
-static int init_i596_mem(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- unsigned long flags;
-
- disable_irq(dev->irq); /* disable IRQs from LAN */
- DEB(DEB_INIT,
- printk("RESET 82596 port: %lx (with IRQ %d disabled)\n",
- (dev->base_addr + PA_I82596_RESET),
- dev->irq));
-
- gsc_writel(0, (dev->base_addr + PA_I82596_RESET)); /* Hard Reset */
- udelay(100); /* Wait 100us - seems to help */
-
- /* change the scp address */
-
- lp->last_cmd = jiffies;
-
-
- lp->scp.sysbus = 0x0000006c;
- lp->scp.iscp = WSWAPiscp(virt_to_dma(lp,&(lp->iscp)));
- lp->iscp.scb = WSWAPscb(virt_to_dma(lp,&(lp->scb)));
- lp->iscp.stat = ISCP_BUSY;
- lp->cmd_backlog = 0;
-
- lp->cmd_head = NULL;
- lp->scb.cmd = I596_NULL;
-
- DEB(DEB_INIT, printk("%s: starting i82596.\n", dev->name));
-
- CHECK_WBACK(lp, &(lp->scp), sizeof(struct i596_scp));
- CHECK_WBACK(lp, &(lp->iscp), sizeof(struct i596_iscp));
-
- MPU_PORT(dev, PORT_ALTSCP, virt_to_dma(lp,&lp->scp));
-
- CA(dev);
-
- if (wait_istat(dev, lp, 1000, "initialization timed out"))
- goto failed;
- DEB(DEB_INIT, printk("%s: i82596 initialization successful\n", dev->name));
-
- /* Ensure rx frame/buffer descriptors are tidy */
- rebuild_rx_bufs(dev);
-
- lp->scb.command = 0;
- CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-
- enable_irq(dev->irq); /* enable IRQs from LAN */
-
- DEB(DEB_INIT, printk("%s: queuing CmdConfigure\n", dev->name));
- memcpy(lp->cf_cmd.i596_config, init_setup, sizeof(init_setup));
- lp->cf_cmd.cmd.command = CmdConfigure;
- CHECK_WBACK(lp, &(lp->cf_cmd), sizeof(struct cf_cmd));
- i596_add_cmd(dev, &lp->cf_cmd.cmd);
-
- DEB(DEB_INIT, printk("%s: queuing CmdSASetup\n", dev->name));
- memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
- lp->sa_cmd.cmd.command = CmdSASetup;
- CHECK_WBACK(lp, &(lp->sa_cmd), sizeof(struct sa_cmd));
- i596_add_cmd(dev, &lp->sa_cmd.cmd);
-
- DEB(DEB_INIT, printk("%s: queuing CmdTDR\n", dev->name));
- lp->tdr_cmd.cmd.command = CmdTDR;
- CHECK_WBACK(lp, &(lp->tdr_cmd), sizeof(struct tdr_cmd));
- i596_add_cmd(dev, &lp->tdr_cmd.cmd);
-
- spin_lock_irqsave (&lp->lock, flags);
-
- if (wait_cmd(dev, lp, 1000, "timed out waiting to issue RX_START")) {
- spin_unlock_irqrestore (&lp->lock, flags);
- goto failed;
- }
- DEB(DEB_INIT, printk("%s: Issuing RX_START\n", dev->name));
- lp->scb.command = RX_START;
- lp->scb.rfd = WSWAPrfd(virt_to_dma(lp,lp->rfds));
- CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-
- CA(dev);
-
- spin_unlock_irqrestore (&lp->lock, flags);
-
- if (wait_cmd(dev, lp, 1000, "RX_START not processed"))
- goto failed;
- DEB(DEB_INIT, printk("%s: Receive unit started OK\n", dev->name));
-
- return 0;
-
-failed:
- printk("%s: Failed to initialise 82596\n", dev->name);
- MPU_PORT(dev, PORT_RESET, 0);
- return -1;
-}
-
-
-static inline int i596_rx(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- struct i596_rfd *rfd;
- struct i596_rbd *rbd;
- int frames = 0;
-
- DEB(DEB_RXFRAME, printk("i596_rx(), rfd_head %p, rbd_head %p\n",
- lp->rfd_head, lp->rbd_head));
-
-
- rfd = lp->rfd_head; /* Ref next frame to check */
-
- CHECK_INV(lp, rfd, sizeof(struct i596_rfd));
- while ((rfd->stat) & STAT_C) { /* Loop while complete frames */
- if (rfd->rbd == I596_NULL)
- rbd = NULL;
- else if (rfd->rbd == lp->rbd_head->b_addr) {
- rbd = lp->rbd_head;
- CHECK_INV(lp, rbd, sizeof(struct i596_rbd));
- }
- else {
- printk("%s: rbd chain broken!\n", dev->name);
- /* XXX Now what? */
- rbd = NULL;
- }
- DEB(DEB_RXFRAME, printk(" rfd %p, rfd.rbd %08x, rfd.stat %04x\n",
- rfd, rfd->rbd, rfd->stat));
-
- if (rbd != NULL && ((rfd->stat) & STAT_OK)) {
- /* a good frame */
- int pkt_len = rbd->count & 0x3fff;
- struct sk_buff *skb = rbd->skb;
- int rx_in_place = 0;
-
- DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
- frames++;
-
- /* Check if the packet is long enough to just accept
- * without copying to a properly sized skbuff.
- */
-
- if (pkt_len > rx_copybreak) {
- struct sk_buff *newskb;
- dma_addr_t dma_addr;
-
- dma_unmap_single(lp->dev,(dma_addr_t)WSWAPchar(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
- /* Get fresh skbuff to replace filled one. */
- newskb = dev_alloc_skb(PKT_BUF_SZ + 4);
- if (newskb == NULL) {
- skb = NULL; /* drop pkt */
- goto memory_squeeze;
- }
- skb_reserve(newskb, 2);
-
- /* Pass up the skb already on the Rx ring. */
- skb_put(skb, pkt_len);
- rx_in_place = 1;
- rbd->skb = newskb;
- newskb->dev = dev;
- dma_addr = dma_map_single(lp->dev, newskb->data, PKT_BUF_SZ, DMA_FROM_DEVICE);
- rbd->v_data = newskb->data;
- rbd->b_data = WSWAPchar(dma_addr);
- CHECK_WBACK_INV(lp, rbd, sizeof(struct i596_rbd));
- }
- else
- skb = dev_alloc_skb(pkt_len + 2);
-memory_squeeze:
- if (skb == NULL) {
- /* XXX tulip.c can defer packets here!! */
- printk("%s: i596_rx Memory squeeze, dropping packet.\n", dev->name);
- lp->stats.rx_dropped++;
- }
- else {
- if (!rx_in_place) {
- /* 16 byte align the data fields */
- dma_sync_single_for_cpu(lp->dev, (dma_addr_t)WSWAPchar(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
- skb_reserve(skb, 2);
- memcpy(skb_put(skb,pkt_len), rbd->v_data, pkt_len);
- dma_sync_single_for_device(lp->dev, (dma_addr_t)WSWAPchar(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
- }
- skb->len = pkt_len;
- skb->protocol=eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->stats.rx_bytes+=pkt_len;
- }
- }
- else {
- DEB(DEB_ERRORS, printk("%s: Error, rfd.stat = 0x%04x\n",
- dev->name, rfd->stat));
- lp->stats.rx_errors++;
- if ((rfd->stat) & 0x0001)
- lp->stats.collisions++;
- if ((rfd->stat) & 0x0080)
- lp->stats.rx_length_errors++;
- if ((rfd->stat) & 0x0100)
- lp->stats.rx_over_errors++;
- if ((rfd->stat) & 0x0200)
- lp->stats.rx_fifo_errors++;
- if ((rfd->stat) & 0x0400)
- lp->stats.rx_frame_errors++;
- if ((rfd->stat) & 0x0800)
- lp->stats.rx_crc_errors++;
- if ((rfd->stat) & 0x1000)
- lp->stats.rx_length_errors++;
- }
-
- /* Clear the buffer descriptor count and EOF + F flags */
-
- if (rbd != NULL && (rbd->count & 0x4000)) {
- rbd->count = 0;
- lp->rbd_head = rbd->v_next;
- CHECK_WBACK_INV(lp, rbd, sizeof(struct i596_rbd));
- }
-
- /* Tidy the frame descriptor, marking it as end of list */
-
- rfd->rbd = I596_NULL;
- rfd->stat = 0;
- rfd->cmd = CMD_EOL|CMD_FLEX;
- rfd->count = 0;
-
- /* Remove end-of-list from old end descriptor */
-
- rfd->v_prev->cmd = CMD_FLEX;
-
- /* Update record of next frame descriptor to process */
-
- lp->scb.rfd = rfd->b_next;
- lp->rfd_head = rfd->v_next;
- CHECK_WBACK_INV(lp, rfd->v_prev, sizeof(struct i596_rfd));
- CHECK_WBACK_INV(lp, rfd, sizeof(struct i596_rfd));
- rfd = lp->rfd_head;
- CHECK_INV(lp, rfd, sizeof(struct i596_rfd));
- }
-
- DEB(DEB_RXFRAME, printk("frames %d\n", frames));
-
- return 0;
-}
-
-
-static inline void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
-{
- struct i596_cmd *ptr;
-
- while (lp->cmd_head != NULL) {
- ptr = lp->cmd_head;
- lp->cmd_head = ptr->v_next;
- lp->cmd_backlog--;
-
- switch ((ptr->command) & 0x7) {
- case CmdTx:
- {
- struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
- struct sk_buff *skb = tx_cmd->skb;
- dma_unmap_single(lp->dev, tx_cmd->dma_addr, skb->len, DMA_TO_DEVICE);
-
- dev_kfree_skb(skb);
-
- lp->stats.tx_errors++;
- lp->stats.tx_aborted_errors++;
-
- ptr->v_next = NULL;
- ptr->b_next = I596_NULL;
- tx_cmd->cmd.command = 0; /* Mark as free */
- break;
- }
- default:
- ptr->v_next = NULL;
- ptr->b_next = I596_NULL;
- }
- CHECK_WBACK_INV(lp, ptr, sizeof(struct i596_cmd));
- }
-
- wait_cmd(dev, lp, 100, "i596_cleanup_cmd timed out");
- lp->scb.cmd = I596_NULL;
- CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-}
-
-
-static inline void i596_reset(struct net_device *dev, struct i596_private *lp)
-{
- unsigned long flags;
-
- DEB(DEB_RESET, printk("i596_reset\n"));
-
- spin_lock_irqsave (&lp->lock, flags);
-
- wait_cmd(dev, lp, 100, "i596_reset timed out");
-
- netif_stop_queue(dev);
-
- /* FIXME: this command might cause an lpmc */
- lp->scb.command = CUC_ABORT | RX_ABORT;
- CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
- CA(dev);
-
- /* wait for shutdown */
- wait_cmd(dev, lp, 1000, "i596_reset 2 timed out");
- spin_unlock_irqrestore (&lp->lock, flags);
-
- i596_cleanup_cmd(dev,lp);
- i596_rx(dev);
-
- netif_start_queue(dev);
- init_i596_mem(dev);
-}
-
-
-static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
-{
- struct i596_private *lp = dev->priv;
- unsigned long flags;
-
- DEB(DEB_ADDCMD, printk("i596_add_cmd cmd_head %p\n", lp->cmd_head));
-
- cmd->status = 0;
- cmd->command |= (CMD_EOL | CMD_INTR);
- cmd->v_next = NULL;
- cmd->b_next = I596_NULL;
- CHECK_WBACK(lp, cmd, sizeof(struct i596_cmd));
-
- spin_lock_irqsave (&lp->lock, flags);
-
- if (lp->cmd_head != NULL) {
- lp->cmd_tail->v_next = cmd;
- lp->cmd_tail->b_next = WSWAPcmd(virt_to_dma(lp,&cmd->status));
- CHECK_WBACK(lp, lp->cmd_tail, sizeof(struct i596_cmd));
- } else {
- lp->cmd_head = cmd;
- wait_cmd(dev, lp, 100, "i596_add_cmd timed out");
- lp->scb.cmd = WSWAPcmd(virt_to_dma(lp,&cmd->status));
- lp->scb.command = CUC_START;
- CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
- CA(dev);
- }
- lp->cmd_tail = cmd;
- lp->cmd_backlog++;
-
- spin_unlock_irqrestore (&lp->lock, flags);
-
- if (lp->cmd_backlog > max_cmd_backlog) {
- unsigned long tickssofar = jiffies - lp->last_cmd;
-
- if (tickssofar < ticks_limit)
- return;
-
- printk("%s: command unit timed out, status resetting.\n", dev->name);
-#if 1
- i596_reset(dev, lp);
-#endif
- }
-}
-
-#if 0
-/* this function makes a perfectly adequate probe... but we have a
- device list */
-static int i596_test(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- volatile int *tint;
- u32 data;
-
- tint = (volatile int *)(&(lp->scp));
- data = virt_to_dma(lp,tint);
-
- tint[1] = -1;
- CHECK_WBACK(lp, tint, PAGE_SIZE);
-
- MPU_PORT(dev, 1, data);
-
- for(data = 1000000; data; data--) {
- CHECK_INV(lp, tint, PAGE_SIZE);
- if(tint[1] != -1)
- break;
-
- }
-
- printk("i596_test result %d\n", tint[1]);
-
-}
-#endif
-
-
-static int i596_open(struct net_device *dev)
-{
- DEB(DEB_OPEN, printk("%s: i596_open() irq %d.\n", dev->name, dev->irq));
-
- if (request_irq(dev->irq, &i596_interrupt, 0, "i82596", dev)) {
- printk("%s: IRQ %d not free\n", dev->name, dev->irq);
- goto out;
- }
-
- init_rx_bufs(dev);
-
- if (init_i596_mem(dev)) {
- printk("%s: Failed to init memory\n", dev->name);
- goto out_remove_rx_bufs;
- }
-
- netif_start_queue(dev);
-
- return 0;
-
-out_remove_rx_bufs:
- remove_rx_bufs(dev);
- free_irq(dev->irq, dev);
-out:
- return -EAGAIN;
-}
-
-static void i596_tx_timeout (struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
-
- /* Transmitter timeout, serious problems. */
- DEB(DEB_ERRORS, printk("%s: transmit timed out, status resetting.\n",
- dev->name));
-
- lp->stats.tx_errors++;
-
- /* Try to restart the adaptor */
- if (lp->last_restart == lp->stats.tx_packets) {
- DEB(DEB_ERRORS, printk("Resetting board.\n"));
- /* Shutdown and restart */
- i596_reset (dev, lp);
- } else {
- /* Issue a channel attention signal */
- DEB(DEB_ERRORS, printk("Kicking board.\n"));
- lp->scb.command = CUC_START | RX_START;
- CHECK_WBACK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
- CA (dev);
- lp->last_restart = lp->stats.tx_packets;
- }
-
- dev->trans_start = jiffies;
- netif_wake_queue (dev);
-}
-
-
-static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- struct tx_cmd *tx_cmd;
- struct i596_tbd *tbd;
- short length = skb->len;
- dev->trans_start = jiffies;
-
- DEB(DEB_STARTTX, printk("%s: i596_start_xmit(%x,%p) called\n", dev->name,
- skb->len, skb->data));
-
- if (length < ETH_ZLEN) {
- if (skb_padto(skb, ETH_ZLEN))
- return 0;
- length = ETH_ZLEN;
- }
-
- netif_stop_queue(dev);
-
- tx_cmd = lp->tx_cmds + lp->next_tx_cmd;
- tbd = lp->tbds + lp->next_tx_cmd;
-
- if (tx_cmd->cmd.command) {
- DEB(DEB_ERRORS, printk("%s: xmit ring full, dropping packet.\n",
- dev->name));
- lp->stats.tx_dropped++;
-
- dev_kfree_skb(skb);
- } else {
- if (++lp->next_tx_cmd == TX_RING_SIZE)
- lp->next_tx_cmd = 0;
- tx_cmd->tbd = WSWAPtbd(virt_to_dma(lp,tbd));
- tbd->next = I596_NULL;
-
- tx_cmd->cmd.command = CMD_FLEX | CmdTx;
- tx_cmd->skb = skb;
-
- tx_cmd->pad = 0;
- tx_cmd->size = 0;
- tbd->pad = 0;
- tbd->size = EOF | length;
-
- tx_cmd->dma_addr = dma_map_single(lp->dev, skb->data, skb->len,
- DMA_TO_DEVICE);
- tbd->data = WSWAPchar(tx_cmd->dma_addr);
-
- DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued"));
- CHECK_WBACK_INV(lp, tx_cmd, sizeof(struct tx_cmd));
- CHECK_WBACK_INV(lp, tbd, sizeof(struct i596_tbd));
- i596_add_cmd(dev, &tx_cmd->cmd);
-
- lp->stats.tx_packets++;
- lp->stats.tx_bytes += length;
- }
-
- netif_start_queue(dev);
-
- return 0;
-}
-
-static void print_eth(unsigned char *add, char *str)
-{
- int i;
-
- printk("i596 0x%p, ", add);
- for (i = 0; i < 6; i++)
- printk(" %02X", add[i + 6]);
- printk(" -->");
- for (i = 0; i < 6; i++)
- printk(" %02X", add[i]);
- printk(" %02X%02X, %s\n", add[12], add[13], str);
-}
-
-
#define LAN_PROM_ADDR 0xF0810000
-static int __devinit i82596_probe(struct net_device *dev,
- struct device *gen_dev)
-{
- int i;
- struct i596_private *lp;
- char eth_addr[6];
- dma_addr_t dma_addr;
-
- /* This lot is ensure things have been cache line aligned. */
- BUILD_BUG_ON(sizeof(struct i596_rfd) != 32);
- BUILD_BUG_ON(sizeof(struct i596_rbd) & 31);
- BUILD_BUG_ON(sizeof(struct tx_cmd) & 31);
- BUILD_BUG_ON(sizeof(struct i596_tbd) != 32);
-#ifndef __LP64__
- BUILD_BUG_ON(sizeof(struct i596_private) > 4096);
-#endif
-
- if (!dev->base_addr || !dev->irq)
- return -ENODEV;
-
- if (pdc_lan_station_id(eth_addr, dev->base_addr)) {
- for (i=0; i < 6; i++) {
- eth_addr[i] = gsc_readb(LAN_PROM_ADDR + i);
- }
- printk(KERN_INFO "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
- }
-
- dev->mem_start = (unsigned long) dma_alloc_noncoherent(gen_dev,
- sizeof(struct i596_private), &dma_addr, GFP_KERNEL);
- if (!dev->mem_start) {
- printk(KERN_ERR "%s: Couldn't get shared memory\n", __FILE__);
- return -ENOMEM;
- }
-
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = eth_addr[i];
-
- /* The 82596-specific entries in the device structure. */
- dev->open = i596_open;
- dev->stop = i596_close;
- dev->hard_start_xmit = i596_start_xmit;
- dev->get_stats = i596_get_stats;
- dev->set_multicast_list = set_multicast_list;
- dev->tx_timeout = i596_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- dev->poll_controller = i596_poll_controller;
-#endif
-
- dev->priv = (void *)(dev->mem_start);
-
- lp = dev->priv;
- memset(lp, 0, sizeof(struct i596_private));
-
- lp->scb.command = 0;
- lp->scb.cmd = I596_NULL;
- lp->scb.rfd = I596_NULL;
- spin_lock_init(&lp->lock);
- lp->dma_addr = dma_addr;
- lp->dev = gen_dev;
-
- CHECK_WBACK_INV(lp, dev->mem_start, sizeof(struct i596_private));
-
- i = register_netdev(dev);
- if (i) {
- lp = dev->priv;
- dma_free_noncoherent(lp->dev, sizeof(struct i596_private),
- (void *)dev->mem_start, lp->dma_addr);
- return i;
- };
-
- DEB(DEB_PROBE, printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
- for (i = 0; i < 6; i++)
- DEB(DEB_PROBE, printk(" %2.2X", dev->dev_addr[i]));
- DEB(DEB_PROBE, printk(" IRQ %d.\n", dev->irq));
- DEB(DEB_INIT, printk(KERN_INFO "%s: lp at 0x%p (%d bytes), lp->scb at 0x%p\n",
- dev->name, lp, (int)sizeof(struct i596_private), &lp->scb));
-
- return 0;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void i596_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- i596_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static irqreturn_t i596_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct i596_private *lp;
- unsigned short status, ack_cmd = 0;
-
- if (dev == NULL) {
- printk("%s: irq %d for unknown device.\n", __FUNCTION__, irq);
- return IRQ_NONE;
- }
-
- lp = dev->priv;
-
- spin_lock (&lp->lock);
-
- wait_cmd(dev, lp, 100, "i596 interrupt, timeout");
- status = lp->scb.status;
-
- DEB(DEB_INTS, printk("%s: i596 interrupt, IRQ %d, status %4.4x.\n",
- dev->name, irq, status));
-
- ack_cmd = status & 0xf000;
-
- if (!ack_cmd) {
- DEB(DEB_ERRORS, printk("%s: interrupt with no events\n", dev->name));
- spin_unlock (&lp->lock);
- return IRQ_NONE;
- }
-
- if ((status & 0x8000) || (status & 0x2000)) {
- struct i596_cmd *ptr;
-
- if ((status & 0x8000))
- DEB(DEB_INTS, printk("%s: i596 interrupt completed command.\n", dev->name));
- if ((status & 0x2000))
- DEB(DEB_INTS, printk("%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700));
-
- while (lp->cmd_head != NULL) {
- CHECK_INV(lp, lp->cmd_head, sizeof(struct i596_cmd));
- if (!(lp->cmd_head->status & STAT_C))
- break;
-
- ptr = lp->cmd_head;
-
- DEB(DEB_STATUS, printk("cmd_head->status = %04x, ->command = %04x\n",
- lp->cmd_head->status, lp->cmd_head->command));
- lp->cmd_head = ptr->v_next;
- lp->cmd_backlog--;
-
- switch ((ptr->command) & 0x7) {
- case CmdTx:
- {
- struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
- struct sk_buff *skb = tx_cmd->skb;
-
- if ((ptr->status) & STAT_OK) {
- DEB(DEB_TXADDR, print_eth(skb->data, "tx-done"));
- } else {
- lp->stats.tx_errors++;
- if ((ptr->status) & 0x0020)
- lp->stats.collisions++;
- if (!((ptr->status) & 0x0040))
- lp->stats.tx_heartbeat_errors++;
- if ((ptr->status) & 0x0400)
- lp->stats.tx_carrier_errors++;
- if ((ptr->status) & 0x0800)
- lp->stats.collisions++;
- if ((ptr->status) & 0x1000)
- lp->stats.tx_aborted_errors++;
- }
- dma_unmap_single(lp->dev, tx_cmd->dma_addr, skb->len, DMA_TO_DEVICE);
- dev_kfree_skb_irq(skb);
-
- tx_cmd->cmd.command = 0; /* Mark free */
- break;
- }
- case CmdTDR:
- {
- unsigned short status = ((struct tdr_cmd *)ptr)->status;
-
- if (status & 0x8000) {
- DEB(DEB_ANY, printk("%s: link ok.\n", dev->name));
- } else {
- if (status & 0x4000)
- printk("%s: Transceiver problem.\n", dev->name);
- if (status & 0x2000)
- printk("%s: Termination problem.\n", dev->name);
- if (status & 0x1000)
- printk("%s: Short circuit.\n", dev->name);
-
- DEB(DEB_TDR, printk("%s: Time %d.\n", dev->name, status & 0x07ff));
- }
- break;
- }
- case CmdConfigure:
- /* Zap command so set_multicast_list() knows it is free */
- ptr->command = 0;
- break;
- }
- ptr->v_next = NULL;
- ptr->b_next = I596_NULL;
- CHECK_WBACK(lp, ptr, sizeof(struct i596_cmd));
- lp->last_cmd = jiffies;
- }
-
- /* This mess is arranging that only the last of any outstanding
- * commands has the interrupt bit set. Should probably really
- * only add to the cmd queue when the CU is stopped.
- */
- ptr = lp->cmd_head;
- while ((ptr != NULL) && (ptr != lp->cmd_tail)) {
- struct i596_cmd *prev = ptr;
-
- ptr->command &= 0x1fff;
- ptr = ptr->v_next;
- CHECK_WBACK_INV(lp, prev, sizeof(struct i596_cmd));
- }
-
- if ((lp->cmd_head != NULL))
- ack_cmd |= CUC_START;
- lp->scb.cmd = WSWAPcmd(virt_to_dma(lp,&lp->cmd_head->status));
- CHECK_WBACK_INV(lp, &lp->scb, sizeof(struct i596_scb));
- }
- if ((status & 0x1000) || (status & 0x4000)) {
- if ((status & 0x4000))
- DEB(DEB_INTS, printk("%s: i596 interrupt received a frame.\n", dev->name));
- i596_rx(dev);
- /* Only RX_START if stopped - RGH 07-07-96 */
- if (status & 0x1000) {
- if (netif_running(dev)) {
- DEB(DEB_ERRORS, printk("%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status));
- ack_cmd |= RX_START;
- lp->stats.rx_errors++;
- lp->stats.rx_fifo_errors++;
- rebuild_rx_bufs(dev);
- }
- }
- }
- wait_cmd(dev, lp, 100, "i596 interrupt, timeout");
- lp->scb.command = ack_cmd;
- CHECK_WBACK(lp, &lp->scb, sizeof(struct i596_scb));
-
- /* DANGER: I suspect that some kind of interrupt
- acknowledgement aside from acking the 82596 might be needed
- here... but it's running acceptably without */
-
- CA(dev);
-
- wait_cmd(dev, lp, 100, "i596 interrupt, exit timeout");
- DEB(DEB_INTS, printk("%s: exiting interrupt.\n", dev->name));
-
- spin_unlock (&lp->lock);
- return IRQ_HANDLED;
-}
-
-static int i596_close(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- unsigned long flags;
-
- netif_stop_queue(dev);
-
- DEB(DEB_INIT, printk("%s: Shutting down ethercard, status was %4.4x.\n",
- dev->name, lp->scb.status));
-
- spin_lock_irqsave(&lp->lock, flags);
-
- wait_cmd(dev, lp, 100, "close1 timed out");
- lp->scb.command = CUC_ABORT | RX_ABORT;
- CHECK_WBACK(lp, &lp->scb, sizeof(struct i596_scb));
-
- CA(dev);
-
- wait_cmd(dev, lp, 100, "close2 timed out");
- spin_unlock_irqrestore(&lp->lock, flags);
- DEB(DEB_STRUCT,i596_display_data(dev));
- i596_cleanup_cmd(dev,lp);
-
- disable_irq(dev->irq);
-
- free_irq(dev->irq, dev);
- remove_rx_bufs(dev);
-
- return 0;
-}
-
-static struct net_device_stats *
- i596_get_stats(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
-
- return &lp->stats;
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- */
-
-static void set_multicast_list(struct net_device *dev)
-{
- struct i596_private *lp = dev->priv;
- int config = 0, cnt;
-
- DEB(DEB_MULTI, printk("%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
- dev->name, dev->mc_count, dev->flags & IFF_PROMISC ? "ON" : "OFF",
- dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
-
- if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) {
- lp->cf_cmd.i596_config[8] |= 0x01;
- config = 1;
- }
- if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) {
- lp->cf_cmd.i596_config[8] &= ~0x01;
- config = 1;
- }
- if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) {
- lp->cf_cmd.i596_config[11] &= ~0x20;
- config = 1;
- }
- if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) {
- lp->cf_cmd.i596_config[11] |= 0x20;
- config = 1;
- }
- if (config) {
- if (lp->cf_cmd.cmd.command)
- printk("%s: config change request already queued\n",
- dev->name);
- else {
- lp->cf_cmd.cmd.command = CmdConfigure;
- CHECK_WBACK_INV(lp, &lp->cf_cmd, sizeof(struct cf_cmd));
- i596_add_cmd(dev, &lp->cf_cmd.cmd);
- }
- }
-
- cnt = dev->mc_count;
- if (cnt > MAX_MC_CNT)
- {
- cnt = MAX_MC_CNT;
- printk("%s: Only %d multicast addresses supported",
- dev->name, cnt);
- }
-
- if (dev->mc_count > 0) {
- struct dev_mc_list *dmi;
- unsigned char *cp;
- struct mc_cmd *cmd;
-
- cmd = &lp->mc_cmd;
- cmd->cmd.command = CmdMulticastList;
- cmd->mc_cnt = dev->mc_count * 6;
- cp = cmd->mc_addrs;
- for (dmi = dev->mc_list; cnt && dmi != NULL; dmi = dmi->next, cnt--, cp += 6) {
- memcpy(cp, dmi->dmi_addr, 6);
- if (i596_debug > 1)
- DEB(DEB_MULTI, printk("%s: Adding address %02x:%02x:%02x:%02x:%02x:%02x\n",
- dev->name, cp[0],cp[1],cp[2],cp[3],cp[4],cp[5]));
- }
- CHECK_WBACK_INV(lp, &lp->mc_cmd, sizeof(struct mc_cmd));
- i596_add_cmd(dev, &cmd->cmd);
- }
-}
-
-static int debug = -1;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "lasi_82596 debug mask");
-
-static int num_drivers;
-static struct net_device *netdevs[MAX_DRIVERS];
-
static int __devinit
lan_init_chip(struct parisc_device *dev)
{
struct net_device *netdevice;
+ struct i596_private *lp;
int retval;
-
- if (num_drivers >= MAX_DRIVERS) {
- /* max count of possible i82596 drivers reached */
- return -ENOMEM;
- }
-
- if (num_drivers == 0)
- printk(KERN_INFO LASI_82596_DRIVER_VERSION "\n");
+ int i;
if (!dev->irq) {
printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
@@ -1528,28 +168,45 @@
printk(KERN_INFO "Found i82596 at 0x%lx, IRQ %d\n", dev->hpa.start,
dev->irq);
- netdevice = alloc_etherdev(0);
+ netdevice = alloc_etherdev(sizeof(struct i596_private));
if (!netdevice)
return -ENOMEM;
+ SET_NETDEV_DEV(netdevice, &dev->dev);
+ parisc_set_drvdata (dev, netdevice);
netdevice->base_addr = dev->hpa.start;
netdevice->irq = dev->irq;
- retval = i82596_probe(netdevice, &dev->dev);
+ if (pdc_lan_station_id(netdevice->dev_addr, netdevice->base_addr)) {
+ for (i = 0; i < 6; i++) {
+ netdevice->dev_addr[i] = gsc_readb(LAN_PROM_ADDR + i);
+ }
+ printk(KERN_INFO
+ "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
+ }
+
+ lp = netdev_priv(netdevice);
+ lp->options = dev->id.sversion == 0x72 ? OPT_SWAP_PORT : 0;
+
+ retval = i82596_probe(netdevice);
if (retval) {
free_netdev(netdevice);
return -ENODEV;
}
-
- if (dev->id.sversion == 0x72) {
- ((struct i596_private *)netdevice->priv)->options = OPT_SWAP_PORT;
- }
-
- netdevs[num_drivers++] = netdevice;
-
return retval;
}
+static int __devexit lan_remove_chip (struct parisc_device *pdev)
+{
+ struct net_device *dev = parisc_get_drvdata(pdev);
+ struct i596_private *lp = netdev_priv(dev);
+
+ unregister_netdev (dev);
+ DMA_FREE(&pdev->dev, sizeof(struct i596_private),
+ (void *)lp->dma, lp->dma_addr);
+ free_netdev (dev);
+ return 0;
+}
static struct parisc_device_id lan_tbl[] = {
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008a },
@@ -1563,12 +220,12 @@
.name = "lasi_82596",
.id_table = lan_tbl,
.probe = lan_init_chip,
+ .remove = __devexit_p(lan_remove_chip),
};
static int __devinit lasi_82596_init(void)
{
- if (debug >= 0)
- i596_debug = debug;
+ printk(KERN_INFO LASI_82596_DRIVER_VERSION "\n");
return register_parisc_driver(&lan_driver);
}
@@ -1576,25 +233,6 @@
static void __exit lasi_82596_exit(void)
{
- int i;
-
- for (i=0; i<MAX_DRIVERS; i++) {
- struct i596_private *lp;
- struct net_device *netdevice;
-
- netdevice = netdevs[i];
- if (!netdevice)
- continue;
-
- unregister_netdev(netdevice);
-
- lp = netdevice->priv;
- dma_free_noncoherent(lp->dev, sizeof(struct i596_private),
- (void *)netdevice->mem_start, lp->dma_addr);
- free_netdev(netdevice);
- }
- num_drivers = 0;
-
unregister_parisc_driver(&lan_driver);
}
