X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fdeclance.c;h=9f7e1db8ce62a12b1fe054844deb6ca5445406b1;hb=23450319e2890986c247ec0aa1442f060e657e6d;hp=00e2a8a134d7a2993530e29f97ac86d4458bf924;hpb=701328a7b58d50d8640c21ba5fdf3170b1ddac16;p=powerpc.git diff --git a/drivers/net/declance.c b/drivers/net/declance.c index 00e2a8a134..9f7e1db8ce 100644 --- a/drivers/net/declance.c +++ b/drivers/net/declance.c @@ -5,7 +5,7 @@ * * adopted from sunlance.c by Richard van den Berg * - * Copyright (C) 2002, 2003, 2005 Maciej W. Rozycki + * Copyright (C) 2002, 2003, 2005, 2006 Maciej W. Rozycki * * additional sources: * - PMAD-AA TURBOchannel Ethernet Module Functional Specification, @@ -40,6 +40,12 @@ * * v0.009: Module support fixes, multiple interfaces support, various * bits. macro + * + * v0.010: Fixes for the PMAD mapping of the LANCE buffer and for the + * PMAX requirement to only use halfword accesses to the + * buffer. macro + * + * v0.011: Converted the PMAD to the driver model. macro */ #include @@ -54,6 +60,8 @@ #include #include #include +#include +#include #include #include @@ -64,15 +72,16 @@ #include #include #include -#include static char version[] __devinitdata = -"declance.c: v0.009 by Linux MIPS DECstation task force\n"; +"declance.c: v0.011 by Linux MIPS DECstation task force\n"; MODULE_AUTHOR("Linux MIPS DECstation task force"); MODULE_DESCRIPTION("DEC LANCE (DECstation onboard, PMAD-xx) driver"); MODULE_LICENSE("GPL"); +#define __unused __attribute__ ((unused)) + /* * card types */ @@ -110,24 +119,25 @@ MODULE_LICENSE("GPL"); #define LE_C3_BCON 0x1 /* Byte control */ /* Receive message descriptor 1 */ -#define LE_R1_OWN 0x80 /* Who owns the entry */ -#define LE_R1_ERR 0x40 /* Error: if FRA, OFL, CRC or BUF is set */ -#define LE_R1_FRA 0x20 /* FRA: Frame error */ -#define LE_R1_OFL 0x10 /* OFL: Frame overflow */ -#define LE_R1_CRC 0x08 /* CRC error */ -#define LE_R1_BUF 0x04 /* BUF: Buffer error */ -#define LE_R1_SOP 0x02 /* Start of packet */ -#define LE_R1_EOP 0x01 /* End of packet */ -#define LE_R1_POK 0x03 /* Packet is complete: SOP + EOP */ - -#define LE_T1_OWN 0x80 /* Lance owns the packet */ -#define LE_T1_ERR 0x40 /* Error summary */ -#define LE_T1_EMORE 0x10 /* Error: more than one retry needed */ -#define LE_T1_EONE 0x08 /* Error: one retry needed */ -#define LE_T1_EDEF 0x04 /* Error: deferred */ -#define LE_T1_SOP 0x02 /* Start of packet */ -#define LE_T1_EOP 0x01 /* End of packet */ -#define LE_T1_POK 0x03 /* Packet is complete: SOP + EOP */ +#define LE_R1_OWN 0x8000 /* Who owns the entry */ +#define LE_R1_ERR 0x4000 /* Error: if FRA, OFL, CRC or BUF is set */ +#define LE_R1_FRA 0x2000 /* FRA: Frame error */ +#define LE_R1_OFL 0x1000 /* OFL: Frame overflow */ +#define LE_R1_CRC 0x0800 /* CRC error */ +#define LE_R1_BUF 0x0400 /* BUF: Buffer error */ +#define LE_R1_SOP 0x0200 /* Start of packet */ +#define LE_R1_EOP 0x0100 /* End of packet */ +#define LE_R1_POK 0x0300 /* Packet is complete: SOP + EOP */ + +/* Transmit message descriptor 1 */ +#define LE_T1_OWN 0x8000 /* Lance owns the packet */ +#define LE_T1_ERR 0x4000 /* Error summary */ +#define LE_T1_EMORE 0x1000 /* Error: more than one retry needed */ +#define LE_T1_EONE 0x0800 /* Error: one retry needed */ +#define LE_T1_EDEF 0x0400 /* Error: deferred */ +#define LE_T1_SOP 0x0200 /* Start of packet */ +#define LE_T1_EOP 0x0100 /* End of packet */ +#define LE_T1_POK 0x0300 /* Packet is complete: SOP + EOP */ #define LE_T3_BUF 0x8000 /* Buffer error */ #define LE_T3_UFL 0x4000 /* Error underflow */ @@ -156,69 +166,57 @@ MODULE_LICENSE("GPL"); #undef TEST_HITS #define ZERO 0 -/* The DS2000/3000 have a linear 64 KB buffer. - - * The PMAD-AA has 128 kb buffer on-board. +/* + * The DS2100/3100 have a linear 64 kB buffer which supports halfword + * accesses only. Each halfword of the buffer is word-aligned in the + * CPU address space. * - * The IOASIC LANCE devices use a shared memory region. This region as seen - * from the CPU is (max) 128 KB long and has to be on an 128 KB boundary. - * The LANCE sees this as a 64 KB long continuous memory region. + * The PMAD-AA has a 128 kB buffer on-board. * - * The LANCE's DMA address is used as an index in this buffer and DMA takes - * place in bursts of eight 16-Bit words which are packed into four 32-Bit words - * by the IOASIC. This leads to a strange padding: 16 bytes of valid data followed - * by a 16 byte gap :-(. + * The IOASIC LANCE devices use a shared memory region. This region + * as seen from the CPU is (max) 128 kB long and has to be on an 128 kB + * boundary. The LANCE sees this as a 64 kB long continuous memory + * region. + * + * The LANCE's DMA address is used as an index in this buffer and DMA + * takes place in bursts of eight 16-bit words which are packed into + * four 32-bit words by the IOASIC. This leads to a strange padding: + * 16 bytes of valid data followed by a 16 byte gap :-(. */ struct lance_rx_desc { unsigned short rmd0; /* low address of packet */ - short gap0; - unsigned char rmd1_hadr; /* high address of packet */ - unsigned char rmd1_bits; /* descriptor bits */ - short gap1; + unsigned short rmd1; /* high address of packet + and descriptor bits */ short length; /* 2s complement (negative!) of buffer length */ - short gap2; unsigned short mblength; /* actual number of bytes received */ - short gap3; }; struct lance_tx_desc { unsigned short tmd0; /* low address of packet */ - short gap0; - unsigned char tmd1_hadr; /* high address of packet */ - unsigned char tmd1_bits; /* descriptor bits */ - short gap1; + unsigned short tmd1; /* high address of packet + and descriptor bits */ short length; /* 2s complement (negative!) of buffer length */ - short gap2; unsigned short misc; - short gap3; }; /* First part of the LANCE initialization block, described in databook. */ struct lance_init_block { unsigned short mode; /* pre-set mode (reg. 15) */ - short gap0; - unsigned char phys_addr[12]; /* physical ethernet address - only 0, 1, 4, 5, 8, 9 are valid - 2, 3, 6, 7, 10, 11 are gaps */ - unsigned short filter[8]; /* multicast filter - only 0, 2, 4, 6 are valid - 1, 3, 5, 7 are gaps */ + unsigned short phys_addr[3]; /* physical ethernet address */ + unsigned short filter[4]; /* multicast filter */ /* Receive and transmit ring base, along with extra bits. */ unsigned short rx_ptr; /* receive descriptor addr */ - short gap1; unsigned short rx_len; /* receive len and high addr */ - short gap2; unsigned short tx_ptr; /* transmit descriptor addr */ - short gap3; unsigned short tx_len; /* transmit len and high addr */ - short gap4; - short gap5[8]; + + short gap[4]; /* The buffer descriptors */ struct lance_rx_desc brx_ring[RX_RING_SIZE]; @@ -226,23 +224,34 @@ struct lance_init_block { }; #define BUF_OFFSET_CPU sizeof(struct lance_init_block) -#define BUF_OFFSET_LNC (sizeof(struct lance_init_block)>>1) +#define BUF_OFFSET_LNC sizeof(struct lance_init_block) -#define libdesc_offset(rt, elem) \ -((__u32)(((unsigned long)(&(((struct lance_init_block *)0)->rt[elem]))))) +#define shift_off(off, type) \ + (type == ASIC_LANCE || type == PMAX_LANCE ? off << 1 : off) -/* - * This works *only* for the ring descriptors - */ -#define LANCE_ADDR(x) (CPHYSADDR(x) >> 1) +#define lib_off(rt, type) \ + shift_off(offsetof(struct lance_init_block, rt), type) + +#define lib_ptr(ib, rt, type) \ + ((volatile u16 *)((u8 *)(ib) + lib_off(rt, type))) + +#define rds_off(rt, type) \ + shift_off(offsetof(struct lance_rx_desc, rt), type) + +#define rds_ptr(rd, rt, type) \ + ((volatile u16 *)((u8 *)(rd) + rds_off(rt, type))) + +#define tds_off(rt, type) \ + shift_off(offsetof(struct lance_tx_desc, rt), type) + +#define tds_ptr(td, rt, type) \ + ((volatile u16 *)((u8 *)(td) + tds_off(rt, type))) struct lance_private { struct net_device *next; int type; - int slot; int dma_irq; volatile struct lance_regs *ll; - volatile struct lance_init_block *init_block; spinlock_t lock; @@ -260,8 +269,8 @@ struct lance_private { char *tx_buf_ptr_cpu[TX_RING_SIZE]; /* Pointers to the ring buffers as seen from the LANCE */ - char *rx_buf_ptr_lnc[RX_RING_SIZE]; - char *tx_buf_ptr_lnc[TX_RING_SIZE]; + uint rx_buf_ptr_lnc[RX_RING_SIZE]; + uint tx_buf_ptr_lnc[TX_RING_SIZE]; }; #define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\ @@ -282,6 +291,7 @@ struct lance_regs { int dec_lance_debug = 2; +static struct tc_driver dec_lance_tc_driver; static struct net_device *root_lance_dev; static inline void writereg(volatile unsigned short *regptr, short value) @@ -294,7 +304,7 @@ static inline void writereg(volatile unsigned short *regptr, short value) static void load_csrs(struct lance_private *lp) { volatile struct lance_regs *ll = lp->ll; - int leptr; + uint leptr; /* The address space as seen from the LANCE * begins at address 0. HK @@ -316,12 +326,14 @@ static void load_csrs(struct lance_private *lp) * Our specialized copy routines * */ -void cp_to_buf(const int type, void *to, const void *from, int len) +static void cp_to_buf(const int type, void *to, const void *from, int len) { unsigned short *tp, *fp, clen; unsigned char *rtp, *rfp; - if (type == PMAX_LANCE) { + if (type == PMAD_LANCE) { + memcpy(to, from, len); + } else if (type == PMAX_LANCE) { clen = len >> 1; tp = (unsigned short *) to; fp = (unsigned short *) from; @@ -370,12 +382,14 @@ void cp_to_buf(const int type, void *to, const void *from, int len) iob(); } -void cp_from_buf(const int type, void *to, const void *from, int len) +static void cp_from_buf(const int type, void *to, const void *from, int len) { unsigned short *tp, *fp, clen; unsigned char *rtp, *rfp; - if (type == PMAX_LANCE) { + if (type == PMAD_LANCE) { + memcpy(to, from, len); + } else if (type == PMAX_LANCE) { clen = len >> 1; tp = (unsigned short *) to; fp = (unsigned short *) from; @@ -431,12 +445,10 @@ void cp_from_buf(const int type, void *to, const void *from, int len) static void lance_init_ring(struct net_device *dev) { struct lance_private *lp = netdev_priv(dev); - volatile struct lance_init_block *ib; - int leptr; + volatile u16 *ib = (volatile u16 *)dev->mem_start; + uint leptr; int i; - ib = (struct lance_init_block *) (dev->mem_start); - /* Lock out other processes while setting up hardware */ netif_stop_queue(dev); lp->rx_new = lp->tx_new = 0; @@ -445,55 +457,64 @@ static void lance_init_ring(struct net_device *dev) /* Copy the ethernet address to the lance init block. * XXX bit 0 of the physical address registers has to be zero */ - ib->phys_addr[0] = dev->dev_addr[0]; - ib->phys_addr[1] = dev->dev_addr[1]; - ib->phys_addr[4] = dev->dev_addr[2]; - ib->phys_addr[5] = dev->dev_addr[3]; - ib->phys_addr[8] = dev->dev_addr[4]; - ib->phys_addr[9] = dev->dev_addr[5]; + *lib_ptr(ib, phys_addr[0], lp->type) = (dev->dev_addr[1] << 8) | + dev->dev_addr[0]; + *lib_ptr(ib, phys_addr[1], lp->type) = (dev->dev_addr[3] << 8) | + dev->dev_addr[2]; + *lib_ptr(ib, phys_addr[2], lp->type) = (dev->dev_addr[5] << 8) | + dev->dev_addr[4]; /* Setup the initialization block */ /* Setup rx descriptor pointer */ - leptr = LANCE_ADDR(libdesc_offset(brx_ring, 0)); - ib->rx_len = (LANCE_LOG_RX_BUFFERS << 13) | (leptr >> 16); - ib->rx_ptr = leptr; + leptr = offsetof(struct lance_init_block, brx_ring); + *lib_ptr(ib, rx_len, lp->type) = (LANCE_LOG_RX_BUFFERS << 13) | + (leptr >> 16); + *lib_ptr(ib, rx_ptr, lp->type) = leptr; if (ZERO) - printk("RX ptr: %8.8x(%8.8x)\n", leptr, libdesc_offset(brx_ring, 0)); + printk("RX ptr: %8.8x(%8.8x)\n", + leptr, lib_off(brx_ring, lp->type)); /* Setup tx descriptor pointer */ - leptr = LANCE_ADDR(libdesc_offset(btx_ring, 0)); - ib->tx_len = (LANCE_LOG_TX_BUFFERS << 13) | (leptr >> 16); - ib->tx_ptr = leptr; + leptr = offsetof(struct lance_init_block, btx_ring); + *lib_ptr(ib, tx_len, lp->type) = (LANCE_LOG_TX_BUFFERS << 13) | + (leptr >> 16); + *lib_ptr(ib, tx_ptr, lp->type) = leptr; if (ZERO) - printk("TX ptr: %8.8x(%8.8x)\n", leptr, libdesc_offset(btx_ring, 0)); + printk("TX ptr: %8.8x(%8.8x)\n", + leptr, lib_off(btx_ring, lp->type)); if (ZERO) printk("TX rings:\n"); /* Setup the Tx ring entries */ for (i = 0; i < TX_RING_SIZE; i++) { - leptr = (int) lp->tx_buf_ptr_lnc[i]; - ib->btx_ring[i].tmd0 = leptr; - ib->btx_ring[i].tmd1_hadr = leptr >> 16; - ib->btx_ring[i].tmd1_bits = 0; - ib->btx_ring[i].length = 0xf000; /* The ones required by tmd2 */ - ib->btx_ring[i].misc = 0; + leptr = lp->tx_buf_ptr_lnc[i]; + *lib_ptr(ib, btx_ring[i].tmd0, lp->type) = leptr; + *lib_ptr(ib, btx_ring[i].tmd1, lp->type) = (leptr >> 16) & + 0xff; + *lib_ptr(ib, btx_ring[i].length, lp->type) = 0xf000; + /* The ones required by tmd2 */ + *lib_ptr(ib, btx_ring[i].misc, lp->type) = 0; if (i < 3 && ZERO) - printk("%d: 0x%8.8x(0x%8.8x)\n", i, leptr, (int) lp->tx_buf_ptr_cpu[i]); + printk("%d: 0x%8.8x(0x%8.8x)\n", + i, leptr, (uint)lp->tx_buf_ptr_cpu[i]); } /* Setup the Rx ring entries */ if (ZERO) printk("RX rings:\n"); for (i = 0; i < RX_RING_SIZE; i++) { - leptr = (int) lp->rx_buf_ptr_lnc[i]; - ib->brx_ring[i].rmd0 = leptr; - ib->brx_ring[i].rmd1_hadr = leptr >> 16; - ib->brx_ring[i].rmd1_bits = LE_R1_OWN; - ib->brx_ring[i].length = -RX_BUFF_SIZE | 0xf000; - ib->brx_ring[i].mblength = 0; + leptr = lp->rx_buf_ptr_lnc[i]; + *lib_ptr(ib, brx_ring[i].rmd0, lp->type) = leptr; + *lib_ptr(ib, brx_ring[i].rmd1, lp->type) = ((leptr >> 16) & + 0xff) | + LE_R1_OWN; + *lib_ptr(ib, brx_ring[i].length, lp->type) = -RX_BUFF_SIZE | + 0xf000; + *lib_ptr(ib, brx_ring[i].mblength, lp->type) = 0; if (i < 3 && ZERO) - printk("%d: 0x%8.8x(0x%8.8x)\n", i, leptr, (int) lp->rx_buf_ptr_cpu[i]); + printk("%d: 0x%8.8x(0x%8.8x)\n", + i, leptr, (uint)lp->rx_buf_ptr_cpu[i]); } iob(); } @@ -511,11 +532,13 @@ static int init_restart_lance(struct lance_private *lp) udelay(10); } if ((i == 100) || (ll->rdp & LE_C0_ERR)) { - printk("LANCE unopened after %d ticks, csr0=%4.4x.\n", i, ll->rdp); + printk("LANCE unopened after %d ticks, csr0=%4.4x.\n", + i, ll->rdp); return -1; } if ((ll->rdp & LE_C0_ERR)) { - printk("LANCE unopened after %d ticks, csr0=%4.4x.\n", i, ll->rdp); + printk("LANCE unopened after %d ticks, csr0=%4.4x.\n", + i, ll->rdp); return -1; } writereg(&ll->rdp, LE_C0_IDON); @@ -528,12 +551,11 @@ static int init_restart_lance(struct lance_private *lp) static int lance_rx(struct net_device *dev) { struct lance_private *lp = netdev_priv(dev); - volatile struct lance_init_block *ib; - volatile struct lance_rx_desc *rd = 0; - unsigned char bits; - int len = 0; - struct sk_buff *skb = 0; - ib = (struct lance_init_block *) (dev->mem_start); + volatile u16 *ib = (volatile u16 *)dev->mem_start; + volatile u16 *rd; + unsigned short bits; + int entry, len; + struct sk_buff *skb; #ifdef TEST_HITS { @@ -542,19 +564,22 @@ static int lance_rx(struct net_device *dev) printk("["); for (i = 0; i < RX_RING_SIZE; i++) { if (i == lp->rx_new) - printk("%s", ib->brx_ring[i].rmd1_bits & + printk("%s", *lib_ptr(ib, brx_ring[i].rmd1, + lp->type) & LE_R1_OWN ? "_" : "X"); else - printk("%s", ib->brx_ring[i].rmd1_bits & + printk("%s", *lib_ptr(ib, brx_ring[i].rmd1, + lp->type) & LE_R1_OWN ? "." : "1"); } printk("]"); } #endif - for (rd = &ib->brx_ring[lp->rx_new]; - !((bits = rd->rmd1_bits) & LE_R1_OWN); - rd = &ib->brx_ring[lp->rx_new]) { + for (rd = lib_ptr(ib, brx_ring[lp->rx_new], lp->type); + !((bits = *rds_ptr(rd, rmd1, lp->type)) & LE_R1_OWN); + rd = lib_ptr(ib, brx_ring[lp->rx_new], lp->type)) { + entry = lp->rx_new; /* We got an incomplete frame? */ if ((bits & LE_R1_POK) != LE_R1_POK) { @@ -575,16 +600,18 @@ static int lance_rx(struct net_device *dev) if (bits & LE_R1_EOP) lp->stats.rx_errors++; } else { - len = (rd->mblength & 0xfff) - 4; + len = (*rds_ptr(rd, mblength, lp->type) & 0xfff) - 4; skb = dev_alloc_skb(len + 2); if (skb == 0) { printk("%s: Memory squeeze, deferring packet.\n", dev->name); lp->stats.rx_dropped++; - rd->mblength = 0; - rd->rmd1_bits = LE_R1_OWN; - lp->rx_new = (lp->rx_new + 1) & RX_RING_MOD_MASK; + *rds_ptr(rd, mblength, lp->type) = 0; + *rds_ptr(rd, rmd1, lp->type) = + ((lp->rx_buf_ptr_lnc[entry] >> 16) & + 0xff) | LE_R1_OWN; + lp->rx_new = (entry + 1) & RX_RING_MOD_MASK; return 0; } lp->stats.rx_bytes += len; @@ -594,8 +621,7 @@ static int lance_rx(struct net_device *dev) skb_put(skb, len); /* make room */ cp_from_buf(lp->type, skb->data, - (char *)lp->rx_buf_ptr_cpu[lp->rx_new], - len); + (char *)lp->rx_buf_ptr_cpu[entry], len); skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); @@ -604,10 +630,11 @@ static int lance_rx(struct net_device *dev) } /* Return the packet to the pool */ - rd->mblength = 0; - rd->length = -RX_BUFF_SIZE | 0xf000; - rd->rmd1_bits = LE_R1_OWN; - lp->rx_new = (lp->rx_new + 1) & RX_RING_MOD_MASK; + *rds_ptr(rd, mblength, lp->type) = 0; + *rds_ptr(rd, length, lp->type) = -RX_BUFF_SIZE | 0xf000; + *rds_ptr(rd, rmd1, lp->type) = + ((lp->rx_buf_ptr_lnc[entry] >> 16) & 0xff) | LE_R1_OWN; + lp->rx_new = (entry + 1) & RX_RING_MOD_MASK; } return 0; } @@ -615,24 +642,24 @@ static int lance_rx(struct net_device *dev) static void lance_tx(struct net_device *dev) { struct lance_private *lp = netdev_priv(dev); - volatile struct lance_init_block *ib; + volatile u16 *ib = (volatile u16 *)dev->mem_start; volatile struct lance_regs *ll = lp->ll; - volatile struct lance_tx_desc *td; + volatile u16 *td; int i, j; int status; - ib = (struct lance_init_block *) (dev->mem_start); + j = lp->tx_old; spin_lock(&lp->lock); for (i = j; i != lp->tx_new; i = j) { - td = &ib->btx_ring[i]; + td = lib_ptr(ib, btx_ring[i], lp->type); /* If we hit a packet not owned by us, stop */ - if (td->tmd1_bits & LE_T1_OWN) + if (*tds_ptr(td, tmd1, lp->type) & LE_T1_OWN) break; - if (td->tmd1_bits & LE_T1_ERR) { - status = td->misc; + if (*tds_ptr(td, tmd1, lp->type) & LE_T1_ERR) { + status = *tds_ptr(td, misc, lp->type); lp->stats.tx_errors++; if (status & LE_T3_RTY) @@ -667,18 +694,19 @@ static void lance_tx(struct net_device *dev) init_restart_lance(lp); goto out; } - } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) { + } else if ((*tds_ptr(td, tmd1, lp->type) & LE_T1_POK) == + LE_T1_POK) { /* * So we don't count the packet more than once. */ - td->tmd1_bits &= ~(LE_T1_POK); + *tds_ptr(td, tmd1, lp->type) &= ~(LE_T1_POK); /* One collision before packet was sent. */ - if (td->tmd1_bits & LE_T1_EONE) + if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EONE) lp->stats.collisions++; /* More than one collision, be optimistic. */ - if (td->tmd1_bits & LE_T1_EMORE) + if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EMORE) lp->stats.collisions += 2; lp->stats.tx_packets++; @@ -752,7 +780,7 @@ struct net_device *last_dev = 0; static int lance_open(struct net_device *dev) { - volatile struct lance_init_block *ib = (struct lance_init_block *) (dev->mem_start); + volatile u16 *ib = (volatile u16 *)dev->mem_start; struct lance_private *lp = netdev_priv(dev); volatile struct lance_regs *ll = lp->ll; int status = 0; @@ -769,11 +797,11 @@ static int lance_open(struct net_device *dev) * * BTW it is common bug in all lance drivers! --ANK */ - ib->mode = 0; - ib->filter [0] = 0; - ib->filter [2] = 0; - ib->filter [4] = 0; - ib->filter [6] = 0; + *lib_ptr(ib, mode, lp->type) = 0; + *lib_ptr(ib, filter[0], lp->type) = 0; + *lib_ptr(ib, filter[1], lp->type) = 0; + *lib_ptr(ib, filter[2], lp->type) = 0; + *lib_ptr(ib, filter[3], lp->type) = 0; lance_init_ring(dev); load_csrs(lp); @@ -874,12 +902,10 @@ static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct lance_private *lp = netdev_priv(dev); volatile struct lance_regs *ll = lp->ll; - volatile struct lance_init_block *ib = (struct lance_init_block *) (dev->mem_start); - int entry, skblen, len; - - skblen = skb->len; + volatile u16 *ib = (volatile u16 *)dev->mem_start; + int entry, len; - len = skblen; + len = skb->len; if (len < ETH_ZLEN) { if (skb_padto(skb, ETH_ZLEN)) @@ -889,23 +915,17 @@ static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev) lp->stats.tx_bytes += len; - entry = lp->tx_new & TX_RING_MOD_MASK; - ib->btx_ring[entry].length = (-len); - ib->btx_ring[entry].misc = 0; + entry = lp->tx_new; + *lib_ptr(ib, btx_ring[entry].length, lp->type) = (-len); + *lib_ptr(ib, btx_ring[entry].misc, lp->type) = 0; - cp_to_buf(lp->type, (char *)lp->tx_buf_ptr_cpu[entry], skb->data, - skblen); - - /* Clear the slack of the packet, do I need this? */ - /* For a firewall it's a good idea - AC */ -/* - if (len != skblen) - memset ((char *) &ib->tx_buf [entry][skblen], 0, (len - skblen) << 1); - */ + cp_to_buf(lp->type, (char *)lp->tx_buf_ptr_cpu[entry], skb->data, len); /* Now, give the packet to the lance */ - ib->btx_ring[entry].tmd1_bits = (LE_T1_POK | LE_T1_OWN); - lp->tx_new = (lp->tx_new + 1) & TX_RING_MOD_MASK; + *lib_ptr(ib, btx_ring[entry].tmd1, lp->type) = + ((lp->tx_buf_ptr_lnc[entry] >> 16) & 0xff) | + (LE_T1_POK | LE_T1_OWN); + lp->tx_new = (entry + 1) & TX_RING_MOD_MASK; if (TX_BUFFS_AVAIL <= 0) netif_stop_queue(dev); @@ -930,8 +950,8 @@ static struct net_device_stats *lance_get_stats(struct net_device *dev) static void lance_load_multicast(struct net_device *dev) { - volatile struct lance_init_block *ib = (struct lance_init_block *) (dev->mem_start); - volatile u16 *mcast_table = (u16 *) & ib->filter; + struct lance_private *lp = netdev_priv(dev); + volatile u16 *ib = (volatile u16 *)dev->mem_start; struct dev_mc_list *dmi = dev->mc_list; char *addrs; int i; @@ -939,17 +959,17 @@ static void lance_load_multicast(struct net_device *dev) /* set all multicast bits */ if (dev->flags & IFF_ALLMULTI) { - ib->filter[0] = 0xffff; - ib->filter[2] = 0xffff; - ib->filter[4] = 0xffff; - ib->filter[6] = 0xffff; + *lib_ptr(ib, filter[0], lp->type) = 0xffff; + *lib_ptr(ib, filter[1], lp->type) = 0xffff; + *lib_ptr(ib, filter[2], lp->type) = 0xffff; + *lib_ptr(ib, filter[3], lp->type) = 0xffff; return; } /* clear the multicast filter */ - ib->filter[0] = 0; - ib->filter[2] = 0; - ib->filter[4] = 0; - ib->filter[6] = 0; + *lib_ptr(ib, filter[0], lp->type) = 0; + *lib_ptr(ib, filter[1], lp->type) = 0; + *lib_ptr(ib, filter[2], lp->type) = 0; + *lib_ptr(ib, filter[3], lp->type) = 0; /* Add addresses */ for (i = 0; i < dev->mc_count; i++) { @@ -962,7 +982,7 @@ static void lance_load_multicast(struct net_device *dev) crc = ether_crc_le(ETH_ALEN, addrs); crc = crc >> 26; - mcast_table[2 * (crc >> 4)] |= 1 << (crc & 0xf); + *lib_ptr(ib, filter[crc >> 4], lp->type) |= 1 << (crc & 0xf); } return; } @@ -970,11 +990,9 @@ static void lance_load_multicast(struct net_device *dev) static void lance_set_multicast(struct net_device *dev) { struct lance_private *lp = netdev_priv(dev); - volatile struct lance_init_block *ib; + volatile u16 *ib = (volatile u16 *)dev->mem_start; volatile struct lance_regs *ll = lp->ll; - ib = (struct lance_init_block *) (dev->mem_start); - if (!netif_running(dev)) return; @@ -992,9 +1010,9 @@ static void lance_set_multicast(struct net_device *dev) lance_init_ring(dev); if (dev->flags & IFF_PROMISC) { - ib->mode |= LE_MO_PROM; + *lib_ptr(ib, mode, lp->type) |= LE_MO_PROM; } else { - ib->mode &= ~LE_MO_PROM; + *lib_ptr(ib, mode, lp->type) &= ~LE_MO_PROM; lance_load_multicast(dev); } load_csrs(lp); @@ -1009,7 +1027,7 @@ static void lance_set_multicast_retry(unsigned long _opaque) lance_set_multicast(dev); } -static int __init dec_lance_init(const int type, const int slot) +static int __init dec_lance_probe(struct device *bdev, const int type) { static unsigned version_printed; static const char fmt[] = "declance%d"; @@ -1017,6 +1035,7 @@ static int __init dec_lance_init(const int type, const int slot) struct net_device *dev; struct lance_private *lp; volatile struct lance_regs *ll; + resource_size_t start = 0, len = 0; int i, ret; unsigned long esar_base; unsigned char *esar; @@ -1024,14 +1043,18 @@ static int __init dec_lance_init(const int type, const int slot) if (dec_lance_debug && version_printed++ == 0) printk(version); - i = 0; - dev = root_lance_dev; - while (dev) { - i++; - lp = (struct lance_private *)dev->priv; - dev = lp->next; + if (bdev) + snprintf(name, sizeof(name), "%s", bdev->bus_id); + else { + i = 0; + dev = root_lance_dev; + while (dev) { + i++; + lp = (struct lance_private *)dev->priv; + dev = lp->next; + } + snprintf(name, sizeof(name), fmt, i); } - snprintf(name, sizeof(name), fmt, i); dev = alloc_etherdev(sizeof(struct lance_private)); if (!dev) { @@ -1049,9 +1072,7 @@ static int __init dec_lance_init(const int type, const int slot) spin_lock_init(&lp->lock); lp->type = type; - lp->slot = slot; switch (type) { -#ifdef CONFIG_TC case ASIC_LANCE: dev->base_addr = CKSEG1ADDR(dec_kn_slot_base + IOASIC_LANCE); @@ -1073,20 +1094,20 @@ static int __init dec_lance_init(const int type, const int slot) */ for (i = 0; i < RX_RING_SIZE; i++) { lp->rx_buf_ptr_cpu[i] = - (char *)(dev->mem_start + BUF_OFFSET_CPU + + (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU + 2 * i * RX_BUFF_SIZE); lp->rx_buf_ptr_lnc[i] = - (char *)(BUF_OFFSET_LNC + i * RX_BUFF_SIZE); + (BUF_OFFSET_LNC + i * RX_BUFF_SIZE); } for (i = 0; i < TX_RING_SIZE; i++) { lp->tx_buf_ptr_cpu[i] = - (char *)(dev->mem_start + BUF_OFFSET_CPU + + (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU + 2 * RX_RING_SIZE * RX_BUFF_SIZE + 2 * i * TX_BUFF_SIZE); lp->tx_buf_ptr_lnc[i] = - (char *)(BUF_OFFSET_LNC + - RX_RING_SIZE * RX_BUFF_SIZE + - i * TX_BUFF_SIZE); + (BUF_OFFSET_LNC + + RX_RING_SIZE * RX_BUFF_SIZE + + i * TX_BUFF_SIZE); } /* Setup I/O ASIC LANCE DMA. */ @@ -1095,13 +1116,24 @@ static int __init dec_lance_init(const int type, const int slot) CPHYSADDR(dev->mem_start) << 3); break; - +#ifdef CONFIG_TC case PMAD_LANCE: - claim_tc_card(slot); + dev_set_drvdata(bdev, dev); + + start = to_tc_dev(bdev)->resource.start; + len = to_tc_dev(bdev)->resource.end - start + 1; + if (!request_mem_region(start, len, bdev->bus_id)) { + printk(KERN_ERR + "%s: Unable to reserve MMIO resource\n", + bdev->bus_id); + ret = -EBUSY; + goto err_out_dev; + } - dev->mem_start = CKSEG1ADDR(get_tc_base_addr(slot)); + dev->mem_start = CKSEG1ADDR(start); + dev->mem_end = dev->mem_start + 0x100000; dev->base_addr = dev->mem_start + 0x100000; - dev->irq = get_tc_irq_nr(slot); + dev->irq = to_tc_dev(bdev)->interrupt; esar_base = dev->mem_start + 0x1c0002; lp->dma_irq = -1; @@ -1110,7 +1142,7 @@ static int __init dec_lance_init(const int type, const int slot) (char *)(dev->mem_start + BUF_OFFSET_CPU + i * RX_BUFF_SIZE); lp->rx_buf_ptr_lnc[i] = - (char *)(BUF_OFFSET_LNC + i * RX_BUFF_SIZE); + (BUF_OFFSET_LNC + i * RX_BUFF_SIZE); } for (i = 0; i < TX_RING_SIZE; i++) { lp->tx_buf_ptr_cpu[i] = @@ -1118,18 +1150,18 @@ static int __init dec_lance_init(const int type, const int slot) RX_RING_SIZE * RX_BUFF_SIZE + i * TX_BUFF_SIZE); lp->tx_buf_ptr_lnc[i] = - (char *)(BUF_OFFSET_LNC + - RX_RING_SIZE * RX_BUFF_SIZE + - i * TX_BUFF_SIZE); + (BUF_OFFSET_LNC + + RX_RING_SIZE * RX_BUFF_SIZE + + i * TX_BUFF_SIZE); } break; #endif - case PMAX_LANCE: dev->irq = dec_interrupt[DEC_IRQ_LANCE]; dev->base_addr = CKSEG1ADDR(KN01_SLOT_BASE + KN01_LANCE); dev->mem_start = CKSEG1ADDR(KN01_SLOT_BASE + KN01_LANCE_MEM); + dev->mem_end = dev->mem_start + KN01_SLOT_SIZE; esar_base = CKSEG1ADDR(KN01_SLOT_BASE + KN01_ESAR + 1); lp->dma_irq = -1; @@ -1138,20 +1170,20 @@ static int __init dec_lance_init(const int type, const int slot) */ for (i = 0; i < RX_RING_SIZE; i++) { lp->rx_buf_ptr_cpu[i] = - (char *)(dev->mem_start + BUF_OFFSET_CPU + + (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU + 2 * i * RX_BUFF_SIZE); lp->rx_buf_ptr_lnc[i] = - (char *)(BUF_OFFSET_LNC + i * RX_BUFF_SIZE); + (BUF_OFFSET_LNC + i * RX_BUFF_SIZE); } for (i = 0; i < TX_RING_SIZE; i++) { lp->tx_buf_ptr_cpu[i] = - (char *)(dev->mem_start + BUF_OFFSET_CPU + + (char *)(dev->mem_start + 2 * BUF_OFFSET_CPU + 2 * RX_RING_SIZE * RX_BUFF_SIZE + 2 * i * TX_BUFF_SIZE); lp->tx_buf_ptr_lnc[i] = - (char *)(BUF_OFFSET_LNC + - RX_RING_SIZE * RX_BUFF_SIZE + - i * TX_BUFF_SIZE); + (BUF_OFFSET_LNC + + RX_RING_SIZE * RX_BUFF_SIZE + + i * TX_BUFF_SIZE); } break; @@ -1160,7 +1192,7 @@ static int __init dec_lance_init(const int type, const int slot) printk(KERN_ERR "%s: declance_init called with unknown type\n", name); ret = -ENODEV; - goto err_out_free_dev; + goto err_out_dev; } ll = (struct lance_regs *) dev->base_addr; @@ -1174,7 +1206,7 @@ static int __init dec_lance_init(const int type, const int slot) "%s: Ethernet station address prom not found!\n", name); ret = -ENODEV; - goto err_out_free_dev; + goto err_out_resource; } /* Check the prom contents */ for (i = 0; i < 8; i++) { @@ -1184,7 +1216,7 @@ static int __init dec_lance_init(const int type, const int slot) printk(KERN_ERR "%s: Something is wrong with the " "ethernet station address prom!\n", name); ret = -ENODEV; - goto err_out_free_dev; + goto err_out_resource; } } @@ -1241,50 +1273,51 @@ static int __init dec_lance_init(const int type, const int slot) if (ret) { printk(KERN_ERR "%s: Unable to register netdev, aborting.\n", name); - goto err_out_free_dev; + goto err_out_resource; } - lp->next = root_lance_dev; - root_lance_dev = dev; + if (!bdev) { + lp->next = root_lance_dev; + root_lance_dev = dev; + } printk("%s: registered as %s.\n", name, dev->name); return 0; -err_out_free_dev: +err_out_resource: + if (bdev) + release_mem_region(start, len); + +err_out_dev: free_netdev(dev); err_out: return ret; } +static void __exit dec_lance_remove(struct device *bdev) +{ + struct net_device *dev = dev_get_drvdata(bdev); + resource_size_t start, len; + + unregister_netdev(dev); + start = to_tc_dev(bdev)->resource.start; + len = to_tc_dev(bdev)->resource.end - start + 1; + release_mem_region(start, len); + free_netdev(dev); +} /* Find all the lance cards on the system and initialize them */ -static int __init dec_lance_probe(void) +static int __init dec_lance_platform_probe(void) { int count = 0; - /* Scan slots for PMAD-AA cards first. */ -#ifdef CONFIG_TC - if (TURBOCHANNEL) { - int slot; - - while ((slot = search_tc_card("PMAD-AA")) >= 0) { - if (dec_lance_init(PMAD_LANCE, slot) < 0) - break; - count++; - } - } -#endif - - /* Then handle onboard devices. */ if (dec_interrupt[DEC_IRQ_LANCE] >= 0) { if (dec_interrupt[DEC_IRQ_LANCE_MERR] >= 0) { -#ifdef CONFIG_TC - if (dec_lance_init(ASIC_LANCE, -1) >= 0) + if (dec_lance_probe(NULL, ASIC_LANCE) >= 0) count++; -#endif } else if (!TURBOCHANNEL) { - if (dec_lance_init(PMAX_LANCE, -1) >= 0) + if (dec_lance_probe(NULL, PMAX_LANCE) >= 0) count++; } } @@ -1292,21 +1325,70 @@ static int __init dec_lance_probe(void) return (count > 0) ? 0 : -ENODEV; } -static void __exit dec_lance_cleanup(void) +static void __exit dec_lance_platform_remove(void) { while (root_lance_dev) { struct net_device *dev = root_lance_dev; struct lance_private *lp = netdev_priv(dev); unregister_netdev(dev); -#ifdef CONFIG_TC - if (lp->slot >= 0) - release_tc_card(lp->slot); -#endif root_lance_dev = lp->next; free_netdev(dev); } } -module_init(dec_lance_probe); -module_exit(dec_lance_cleanup); +#ifdef CONFIG_TC +static int __init dec_lance_tc_probe(struct device *dev); +static int __exit dec_lance_tc_remove(struct device *dev); + +static const struct tc_device_id dec_lance_tc_table[] = { + { "DEC ", "PMAD-AA " }, + { } +}; +MODULE_DEVICE_TABLE(tc, dec_lance_tc_table); + +static struct tc_driver dec_lance_tc_driver = { + .id_table = dec_lance_tc_table, + .driver = { + .name = "declance", + .bus = &tc_bus_type, + .probe = dec_lance_tc_probe, + .remove = __exit_p(dec_lance_tc_remove), + }, +}; + +static int __init dec_lance_tc_probe(struct device *dev) +{ + int status = dec_lance_probe(dev, PMAD_LANCE); + if (!status) + get_device(dev); + return status; +} + +static int __exit dec_lance_tc_remove(struct device *dev) +{ + put_device(dev); + dec_lance_remove(dev); + return 0; +} +#endif + +static int __init dec_lance_init(void) +{ + int status; + + status = tc_register_driver(&dec_lance_tc_driver); + if (!status) + dec_lance_platform_probe(); + return status; +} + +static void __exit dec_lance_exit(void) +{ + dec_lance_platform_remove(); + tc_unregister_driver(&dec_lance_tc_driver); +} + + +module_init(dec_lance_init); +module_exit(dec_lance_exit);