Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

1 files changed, 176 insertions, 187 deletions

diff --git a/drivers/net/ibm_emac/ibm_emac_debug.c b/drivers/net/ibm_emac/ibm_emac_debug.c
index c8512046cf8..75d3b863904 100644
--- a/drivers/net/ibm_emac/ibm_emac_debug.c
+++ b/drivers/net/ibm_emac/ibm_emac_debug.c
@@ -1,224 +1,213 @@
 /*
- * ibm_ocp_debug.c
+ * drivers/net/ibm_emac/ibm_emac_debug.c
  *
- * This has all the debug routines that where in *_enet.c
+ * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
  *
- *      Armin Kuster akuster@mvista.com
- *      April , 2002
- *
- * Copyright 2002 MontaVista Softare Inc.
+ * Copyright (c) 2004, 2005 Zultys Technologies
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
+ *
  */
-
 #include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
+#include <linux/sysrq.h>
 #include <asm/io.h>
-#include "ibm_ocp_mal.h"
-#include "ibm_ocp_zmii.h"
-#include "ibm_ocp_enet.h"
 
-extern int emac_phy_read(struct net_device *dev, int mii_id, int reg);
+#include "ibm_emac_core.h"
+
+static void emac_desc_dump(int idx, struct ocp_enet_private *p)
+{
+	int i;
+	printk("** EMAC%d TX BDs **\n"
+	       " tx_cnt = %d tx_slot = %d ack_slot = %d\n",
+	       idx, p->tx_cnt, p->tx_slot, p->ack_slot);
+	for (i = 0; i < NUM_TX_BUFF / 2; ++i)
+		printk
+		    ("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
+		     i, p->tx_desc[i].data_ptr, p->tx_skb[i] ? 'V' : ' ',
+		     p->tx_desc[i].ctrl, p->tx_desc[i].data_len,
+		     NUM_TX_BUFF / 2 + i,
+		     p->tx_desc[NUM_TX_BUFF / 2 + i].data_ptr,
+		     p->tx_skb[NUM_TX_BUFF / 2 + i] ? 'V' : ' ',
+		     p->tx_desc[NUM_TX_BUFF / 2 + i].ctrl,
+		     p->tx_desc[NUM_TX_BUFF / 2 + i].data_len);
+
+	printk("** EMAC%d RX BDs **\n"
+	       " rx_slot = %d rx_stopped = %d rx_skb_size = %d rx_sync_size = %d\n"
+	       " rx_sg_skb = 0x%p\n",
+	       idx, p->rx_slot, p->commac.rx_stopped, p->rx_skb_size,
+	       p->rx_sync_size, p->rx_sg_skb);
+	for (i = 0; i < NUM_RX_BUFF / 2; ++i)
+		printk
+		    ("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
+		     i, p->rx_desc[i].data_ptr, p->rx_skb[i] ? 'V' : ' ',
+		     p->rx_desc[i].ctrl, p->rx_desc[i].data_len,
+		     NUM_RX_BUFF / 2 + i,
+		     p->rx_desc[NUM_RX_BUFF / 2 + i].data_ptr,
+		     p->rx_skb[NUM_RX_BUFF / 2 + i] ? 'V' : ' ',
+		     p->rx_desc[NUM_RX_BUFF / 2 + i].ctrl,
+		     p->rx_desc[NUM_RX_BUFF / 2 + i].data_len);
+}
+
+static void emac_mac_dump(int idx, struct ocp_enet_private *dev)
+{
+	struct emac_regs *p = dev->emacp;
+
+	printk("** EMAC%d registers **\n"
+	       "MR0 = 0x%08x MR1 = 0x%08x TMR0 = 0x%08x TMR1 = 0x%08x\n"
+	       "RMR = 0x%08x ISR = 0x%08x ISER = 0x%08x\n"
+	       "IAR = %04x%08x VTPID = 0x%04x VTCI = 0x%04x\n"
+	       "IAHT: 0x%04x 0x%04x 0x%04x 0x%04x "
+	       "GAHT: 0x%04x 0x%04x 0x%04x 0x%04x\n"
+	       "LSA = %04x%08x IPGVR = 0x%04x\n"
+	       "STACR = 0x%08x TRTR = 0x%08x RWMR = 0x%08x\n"
+	       "OCTX = 0x%08x OCRX = 0x%08x IPCR = 0x%08x\n",
+	       idx, in_be32(&p->mr0), in_be32(&p->mr1),
+	       in_be32(&p->tmr0), in_be32(&p->tmr1),
+	       in_be32(&p->rmr), in_be32(&p->isr), in_be32(&p->iser),
+	       in_be32(&p->iahr), in_be32(&p->ialr), in_be32(&p->vtpid),
+	       in_be32(&p->vtci),
+	       in_be32(&p->iaht1), in_be32(&p->iaht2), in_be32(&p->iaht3),
+	       in_be32(&p->iaht4),
+	       in_be32(&p->gaht1), in_be32(&p->gaht2), in_be32(&p->gaht3),
+	       in_be32(&p->gaht4),
+	       in_be32(&p->lsah), in_be32(&p->lsal), in_be32(&p->ipgvr),
+	       in_be32(&p->stacr), in_be32(&p->trtr), in_be32(&p->rwmr),
+	       in_be32(&p->octx), in_be32(&p->ocrx), in_be32(&p->ipcr)
+	    );
+
+	emac_desc_dump(idx, dev);
+}
+
+static void emac_mal_dump(struct ibm_ocp_mal *mal)
+{
+	struct ocp_func_mal_data *maldata = mal->def->additions;
+	int i;
+
+	printk("** MAL%d Registers **\n"
+	       "CFG = 0x%08x ESR = 0x%08x IER = 0x%08x\n"
+	       "TX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n"
+	       "RX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n",
+	       mal->def->index,
+	       get_mal_dcrn(mal, MAL_CFG), get_mal_dcrn(mal, MAL_ESR),
+	       get_mal_dcrn(mal, MAL_IER),
+	       get_mal_dcrn(mal, MAL_TXCASR), get_mal_dcrn(mal, MAL_TXCARR),
+	       get_mal_dcrn(mal, MAL_TXEOBISR), get_mal_dcrn(mal, MAL_TXDEIR),
+	       get_mal_dcrn(mal, MAL_RXCASR), get_mal_dcrn(mal, MAL_RXCARR),
+	       get_mal_dcrn(mal, MAL_RXEOBISR), get_mal_dcrn(mal, MAL_RXDEIR)
+	    );
+
+	printk("TX|");
+	for (i = 0; i < maldata->num_tx_chans; ++i) {
+		if (i && !(i % 4))
+			printk("\n   ");
+		printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_TXCTPR(i)));
+	}
+	printk("\nRX|");
+	for (i = 0; i < maldata->num_rx_chans; ++i) {
+		if (i && !(i % 4))
+			printk("\n   ");
+		printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_RXCTPR(i)));
+	}
+	printk("\n   ");
+	for (i = 0; i < maldata->num_rx_chans; ++i) {
+		u32 r = get_mal_dcrn(mal, MAL_RCBS(i));
+		if (i && !(i % 3))
+			printk("\n   ");
+		printk("RCBS%d = 0x%08x (%d) ", i, r, r * 16);
+	}
+	printk("\n");
+}
+
+static struct ocp_enet_private *__emacs[4];
+static struct ibm_ocp_mal *__mals[1];
 
-void emac_phy_dump(struct net_device *dev)
+void emac_dbg_register(int idx, struct ocp_enet_private *dev)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	unsigned long i;
-	uint data;
-
-	printk(KERN_DEBUG " Prepare for Phy dump....\n");
-	for (i = 0; i < 0x1A; i++) {
-		data = emac_phy_read(dev, fep->mii_phy_addr, i);
-		printk(KERN_DEBUG "Phy reg 0x%lx ==> %4x\n", i, data);
-		if (i == 0x07)
-			i = 0x0f;
+	unsigned long flags;
+
+	if (idx >= sizeof(__emacs) / sizeof(__emacs[0])) {
+		printk(KERN_WARNING
+		       "invalid index %d when registering EMAC for debugging\n",
+		       idx);
+		return;
 	}
+
+	local_irq_save(flags);
+	__emacs[idx] = dev;
+	local_irq_restore(flags);
 }
 
-void emac_desc_dump(struct net_device *dev)
+void mal_dbg_register(int idx, struct ibm_ocp_mal *mal)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	int curr_slot;
-
-	printk(KERN_DEBUG
-	       "dumping the receive descriptors:  current slot is %d\n",
-	       fep->rx_slot);
-	for (curr_slot = 0; curr_slot < NUM_RX_BUFF; curr_slot++) {
-		printk(KERN_DEBUG
-		       "Desc %02d: status 0x%04x, length %3d, addr 0x%x\n",
-		       curr_slot, fep->rx_desc[curr_slot].ctrl,
-		       fep->rx_desc[curr_slot].data_len,
-		       (unsigned int)fep->rx_desc[curr_slot].data_ptr);
+	unsigned long flags;
+
+	if (idx >= sizeof(__mals) / sizeof(__mals[0])) {
+		printk(KERN_WARNING
+		       "invalid index %d when registering MAL for debugging\n",
+		       idx);
+		return;
 	}
+
+	local_irq_save(flags);
+	__mals[idx] = mal;
+	local_irq_restore(flags);
 }
 
-void emac_mac_dump(struct net_device *dev)
+void emac_dbg_dump_all(void)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	volatile emac_t *emacp = fep->emacp;
-
-	printk(KERN_DEBUG "EMAC DEBUG ********** \n");
-	printk(KERN_DEBUG "EMAC_M0  ==> 0x%x\n", in_be32(&emacp->em0mr0));
-	printk(KERN_DEBUG "EMAC_M1  ==> 0x%x\n", in_be32(&emacp->em0mr1));
-	printk(KERN_DEBUG "EMAC_TXM0==> 0x%x\n", in_be32(&emacp->em0tmr0));
-	printk(KERN_DEBUG "EMAC_TXM1==> 0x%x\n", in_be32(&emacp->em0tmr1));
-	printk(KERN_DEBUG "EMAC_RXM ==> 0x%x\n", in_be32(&emacp->em0rmr));
-	printk(KERN_DEBUG "EMAC_ISR ==> 0x%x\n", in_be32(&emacp->em0isr));
-	printk(KERN_DEBUG "EMAC_IER ==> 0x%x\n", in_be32(&emacp->em0iser));
-	printk(KERN_DEBUG "EMAC_IAH ==> 0x%x\n", in_be32(&emacp->em0iahr));
-	printk(KERN_DEBUG "EMAC_IAL ==> 0x%x\n", in_be32(&emacp->em0ialr));
-	printk(KERN_DEBUG "EMAC_VLAN_TPID_REG ==> 0x%x\n",
-	       in_be32(&emacp->em0vtpid));
+	unsigned int i;
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	for (i = 0; i < sizeof(__mals) / sizeof(__mals[0]); ++i)
+		if (__mals[i])
+			emac_mal_dump(__mals[i]);
+
+	for (i = 0; i < sizeof(__emacs) / sizeof(__emacs[0]); ++i)
+		if (__emacs[i])
+			emac_mac_dump(i, __emacs[i]);
+
+	local_irq_restore(flags);
 }
 
-void emac_mal_dump(struct net_device *dev)
+#if defined(CONFIG_MAGIC_SYSRQ)
+static void emac_sysrq_handler(int key, struct pt_regs *pt_regs,
+			       struct tty_struct *tty)
 {
-	struct ibm_ocp_mal *mal = ((struct ocp_enet_private *)dev->priv)->mal;
-
-	printk(KERN_DEBUG " MAL DEBUG ********** \n");
-	printk(KERN_DEBUG " MCR      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALCR));
-	printk(KERN_DEBUG " ESR      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALESR));
-	printk(KERN_DEBUG " IER      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALIER));
-#ifdef CONFIG_40x
-	printk(KERN_DEBUG " DBR      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALDBR));
-#endif				/* CONFIG_40x */
-	printk(KERN_DEBUG " TXCASR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCASR));
-	printk(KERN_DEBUG " TXCARR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCARR));
-	printk(KERN_DEBUG " TXEOBISR ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXEOBISR));
-	printk(KERN_DEBUG " TXDEIR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXDEIR));
-	printk(KERN_DEBUG " RXCASR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCASR));
-	printk(KERN_DEBUG " RXCARR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCARR));
-	printk(KERN_DEBUG " RXEOBISR ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXEOBISR));
-	printk(KERN_DEBUG " RXDEIR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXDEIR));
-	printk(KERN_DEBUG " TXCTP0R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP0R));
-	printk(KERN_DEBUG " TXCTP1R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP1R));
-	printk(KERN_DEBUG " TXCTP2R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP2R));
-	printk(KERN_DEBUG " TXCTP3R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP3R));
-	printk(KERN_DEBUG " RXCTP0R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCTP0R));
-	printk(KERN_DEBUG " RXCTP1R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCTP1R));
-	printk(KERN_DEBUG " RCBS0    ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRCBS0));
-	printk(KERN_DEBUG " RCBS1    ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRCBS1));
+	emac_dbg_dump_all();
 }
 
-void emac_serr_dump_0(struct net_device *dev)
+static struct sysrq_key_op emac_sysrq_op = {
+	.handler = emac_sysrq_handler,
+	.help_msg = "emaC",
+	.action_msg = "Show EMAC(s) status",
+};
+
+int __init emac_init_debug(void)
 {
-	struct ibm_ocp_mal *mal = ((struct ocp_enet_private *)dev->priv)->mal;
-	unsigned long int mal_error, plb_error, plb_addr;
-
-	mal_error = get_mal_dcrn(mal, DCRN_MALESR);
-	printk(KERN_DEBUG "ppc405_eth_serr: %s channel %ld \n",
-	       (mal_error & 0x40000000) ? "Receive" :
-	       "Transmit", (mal_error & 0x3e000000) >> 25);
-	printk(KERN_DEBUG "  -----  latched error  -----\n");
-	if (mal_error & MALESR_DE)
-		printk(KERN_DEBUG "  DE: descriptor error\n");
-	if (mal_error & MALESR_OEN)
-		printk(KERN_DEBUG "  ONE: OPB non-fullword error\n");
-	if (mal_error & MALESR_OTE)
-		printk(KERN_DEBUG "  OTE: OPB timeout error\n");
-	if (mal_error & MALESR_OSE)
-		printk(KERN_DEBUG "  OSE: OPB slave error\n");
-
-	if (mal_error & MALESR_PEIN) {
-		plb_error = mfdcr(DCRN_PLB0_BESR);
-		printk(KERN_DEBUG
-		       "  PEIN: PLB error, PLB0_BESR is 0x%x\n",
-		       (unsigned int)plb_error);
-		plb_addr = mfdcr(DCRN_PLB0_BEAR);
-		printk(KERN_DEBUG
-		       "  PEIN: PLB error, PLB0_BEAR is 0x%x\n",
-		       (unsigned int)plb_addr);
-	}
+	return register_sysrq_key('c', &emac_sysrq_op);
 }
 
-void emac_serr_dump_1(struct net_device *dev)
+void __exit emac_fini_debug(void)
 {
-	struct ibm_ocp_mal *mal = ((struct ocp_enet_private *)dev->priv)->mal;
-	int mal_error = get_mal_dcrn(mal, DCRN_MALESR);
-
-	printk(KERN_DEBUG "  -----  cumulative errors  -----\n");
-	if (mal_error & MALESR_DEI)
-		printk(KERN_DEBUG "  DEI: descriptor error interrupt\n");
-	if (mal_error & MALESR_ONEI)
-		printk(KERN_DEBUG "  OPB non-fullword error interrupt\n");
-	if (mal_error & MALESR_OTEI)
-		printk(KERN_DEBUG "  OTEI: timeout error interrupt\n");
-	if (mal_error & MALESR_OSEI)
-		printk(KERN_DEBUG "  OSEI: slave error interrupt\n");
-	if (mal_error & MALESR_PBEI)
-		printk(KERN_DEBUG "  PBEI: PLB bus error interrupt\n");
+	unregister_sysrq_key('c', &emac_sysrq_op);
 }
 
-void emac_err_dump(struct net_device *dev, int em0isr)
+#else
+int __init emac_init_debug(void)
+{
+	return 0;
+}
+void __exit emac_fini_debug(void)
 {
-	printk(KERN_DEBUG "%s: on-chip ethernet error:\n", dev->name);
-
-	if (em0isr & EMAC_ISR_OVR)
-		printk(KERN_DEBUG "  OVR: overrun\n");
-	if (em0isr & EMAC_ISR_PP)
-		printk(KERN_DEBUG "  PP: control pause packet\n");
-	if (em0isr & EMAC_ISR_BP)
-		printk(KERN_DEBUG "  BP: packet error\n");
-	if (em0isr & EMAC_ISR_RP)
-		printk(KERN_DEBUG "  RP: runt packet\n");
-	if (em0isr & EMAC_ISR_SE)
-		printk(KERN_DEBUG "  SE: short event\n");
-	if (em0isr & EMAC_ISR_ALE)
-		printk(KERN_DEBUG "  ALE: odd number of nibbles in packet\n");
-	if (em0isr & EMAC_ISR_BFCS)
-		printk(KERN_DEBUG "  BFCS: bad FCS\n");
-	if (em0isr & EMAC_ISR_PTLE)
-		printk(KERN_DEBUG "  PTLE: oversized packet\n");
-	if (em0isr & EMAC_ISR_ORE)
-		printk(KERN_DEBUG
-		       "  ORE: packet length field > max allowed LLC\n");
-	if (em0isr & EMAC_ISR_IRE)
-		printk(KERN_DEBUG "  IRE: In Range error\n");
-	if (em0isr & EMAC_ISR_DBDM)
-		printk(KERN_DEBUG "  DBDM: xmit error or SQE\n");
-	if (em0isr & EMAC_ISR_DB0)
-		printk(KERN_DEBUG "  DB0: xmit error or SQE on TX channel 0\n");
-	if (em0isr & EMAC_ISR_SE0)
-		printk(KERN_DEBUG
-		       "  SE0: Signal Quality Error test failure from TX channel 0\n");
-	if (em0isr & EMAC_ISR_TE0)
-		printk(KERN_DEBUG "  TE0: xmit channel 0 aborted\n");
-	if (em0isr & EMAC_ISR_DB1)
-		printk(KERN_DEBUG "  DB1: xmit error or SQE on TX channel \n");
-	if (em0isr & EMAC_ISR_SE1)
-		printk(KERN_DEBUG
-		       "  SE1: Signal Quality Error test failure from TX channel 1\n");
-	if (em0isr & EMAC_ISR_TE1)
-		printk(KERN_DEBUG "  TE1: xmit channel 1 aborted\n");
-	if (em0isr & EMAC_ISR_MOS)
-		printk(KERN_DEBUG "  MOS\n");
-	if (em0isr & EMAC_ISR_MOF)
-		printk(KERN_DEBUG "  MOF\n");
-
-	emac_mac_dump(dev);
-	emac_mal_dump(dev);
 }
+#endif				/* CONFIG_MAGIC_SYSRQ */