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Commit 0a64ea57 authored by Eilon Greenstein's avatar Eilon Greenstein Committed by David S. Miller
Browse files

bnx2x: Register dump 



Adding "ethtool -d" support. Due to the complexity of the FW and HW, there are a
lot of different regions in the chip - to keep the code as clean as possible,
the ranges were put in an H file. Some areas cannot be read if the driver is
running - so by default, the driver will not access those areas - but any
programmer facing a problem will be able to easily manipulate the driver to
extract full dump. The full dump can also be used with kernel dump modules in
case of kernel panic.

Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c3eefaf6

drivers/net/bnx2x_dump.h

0 → 100644
+526 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/net/bnx2x_main.c

+81 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ 


#include "bnx2x.h"

#include "bnx2x_init.h"

#include "bnx2x_dump.h"



#define DRV_MODULE_VERSION	"1.48.102"

#define DRV_MODULE_RELDATE	"2009/02/12"
@@ -8471,6 +8472,84 @@ static void bnx2x_get_drvinfo(struct net_device *dev, 
	info->regdump_len = 0;

}



#define IS_E1_ONLINE(info)	(((info) & RI_E1_ONLINE) == RI_E1_ONLINE)

#define IS_E1H_ONLINE(info)	(((info) & RI_E1H_ONLINE) == RI_E1H_ONLINE)



static int bnx2x_get_regs_len(struct net_device *dev)

{

	static u32 regdump_len;

	struct bnx2x *bp = netdev_priv(dev);

	int i;



	if (regdump_len)

		return regdump_len;



	if (CHIP_IS_E1(bp)) {

		for (i = 0; i < REGS_COUNT; i++)

			if (IS_E1_ONLINE(reg_addrs[i].info))

				regdump_len += reg_addrs[i].size;



		for (i = 0; i < WREGS_COUNT_E1; i++)

			if (IS_E1_ONLINE(wreg_addrs_e1[i].info))

				regdump_len += wreg_addrs_e1[i].size *

					(1 + wreg_addrs_e1[i].read_regs_count);



	} else { /* E1H */

		for (i = 0; i < REGS_COUNT; i++)

			if (IS_E1H_ONLINE(reg_addrs[i].info))

				regdump_len += reg_addrs[i].size;



		for (i = 0; i < WREGS_COUNT_E1H; i++)

			if (IS_E1H_ONLINE(wreg_addrs_e1h[i].info))

				regdump_len += wreg_addrs_e1h[i].size *

					(1 + wreg_addrs_e1h[i].read_regs_count);

	}

	regdump_len *= 4;

	regdump_len += sizeof(struct dump_hdr);



	return regdump_len;

}



static void bnx2x_get_regs(struct net_device *dev,

			   struct ethtool_regs *regs, void *_p)

{

	u32 *p = _p, i, j;

	struct bnx2x *bp = netdev_priv(dev);

	struct dump_hdr dump_hdr = {0};



	regs->version = 0;

	memset(p, 0, regs->len);



	if (!netif_running(bp->dev))

		return;



	dump_hdr.hdr_size = (sizeof(struct dump_hdr) / 4) - 1;

	dump_hdr.dump_sign = dump_sign_all;

	dump_hdr.xstorm_waitp = REG_RD(bp, XSTORM_WAITP_ADDR);

	dump_hdr.tstorm_waitp = REG_RD(bp, TSTORM_WAITP_ADDR);

	dump_hdr.ustorm_waitp = REG_RD(bp, USTORM_WAITP_ADDR);

	dump_hdr.cstorm_waitp = REG_RD(bp, CSTORM_WAITP_ADDR);

	dump_hdr.info = CHIP_IS_E1(bp) ? RI_E1_ONLINE : RI_E1H_ONLINE;



	memcpy(p, &dump_hdr, sizeof(struct dump_hdr));

	p += dump_hdr.hdr_size + 1;



	if (CHIP_IS_E1(bp)) {

		for (i = 0; i < REGS_COUNT; i++)

			if (IS_E1_ONLINE(reg_addrs[i].info))

				for (j = 0; j < reg_addrs[i].size; j++)

					*p++ = REG_RD(bp,

						      reg_addrs[i].addr + j*4);



	} else { /* E1H */

		for (i = 0; i < REGS_COUNT; i++)

			if (IS_E1H_ONLINE(reg_addrs[i].info))

				for (j = 0; j < reg_addrs[i].size; j++)

					*p++ = REG_RD(bp,

						      reg_addrs[i].addr + j*4);

	}

}



static void bnx2x_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)

{

	struct bnx2x *bp = netdev_priv(dev);
@@ -9926,6 +10005,8 @@ static struct ethtool_ops bnx2x_ethtool_ops = { 
	.get_settings		= bnx2x_get_settings,

	.set_settings		= bnx2x_set_settings,

	.get_drvinfo		= bnx2x_get_drvinfo,

	.get_regs_len		= bnx2x_get_regs_len,

	.get_regs		= bnx2x_get_regs,

	.get_wol		= bnx2x_get_wol,

	.set_wol		= bnx2x_set_wol,

	.get_msglevel		= bnx2x_get_msglevel,