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bnx2x: Register dump

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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: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eilon Greenstein 2009-03-02 08:01:12 +00:00 • committed by David S. Miller
parent c3eefaf676
commit 0a64ea5748
2 changed files with 607 additions and 0 deletions
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81
drivers/net/bnx2x_main.c
View file

@ -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,