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Date: Tue, 14 Jun 2011 14:33:25 +0300
From: "Vlad Zolotarov" <vladz@...adcom.com>
To: "Dave Miller" <davem@...emloft.net>
cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"Eilon Greenstein" <eilong@...adcom.com>,
"Dmitry Kravkov" <dmitry@...adcom.com>,
"Yaniv Rosner" <yaniv.rosner@...adcom.com>
Subject: [PATCH net-next 8/24] bnx2x: dump FW memory when appropriate
msglvl is raised
From: Dmitry Kravkov <dmitry@...adcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@...adcom.com>
Signed-off-by: Vladislav Zolotarov <vladz@...adcom.com>
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
drivers/net/bnx2x/bnx2x_cmn.h | 2 ++
drivers/net/bnx2x/bnx2x_ethtool.c | 6 +++++-
drivers/net/bnx2x/bnx2x_main.c | 23 ++++++++++++++++++-----
drivers/net/bnx2x/bnx2x_reg.h | 1 +
4 files changed, 26 insertions(+), 6 deletions(-)
diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h
index fab161e..b01f737 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/bnx2x/bnx2x_cmn.h
@@ -363,6 +363,8 @@ int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state);
*/
void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value);
+void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl);
+
/* dev_close main block */
int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode);
diff --git a/drivers/net/bnx2x/bnx2x_ethtool.c b/drivers/net/bnx2x/bnx2x_ethtool.c
index 727fe89..10b17f6 100644
--- a/drivers/net/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/bnx2x/bnx2x_ethtool.c
@@ -682,8 +682,12 @@ static void bnx2x_set_msglevel(struct net_device *dev, u32 level)
{
struct bnx2x *bp = netdev_priv(dev);
- if (capable(CAP_NET_ADMIN))
+ if (capable(CAP_NET_ADMIN)) {
+ /* dump MCP trace */
+ if (level & BNX2X_MSG_MCP)
+ bnx2x_fw_dump_lvl(bp, KERN_INFO);
bp->msg_enable = level;
+ }
}
static int bnx2x_nway_reset(struct net_device *dev)
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 0e8d302..c6c59ad 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -833,9 +833,9 @@ static int bnx2x_mc_assert(struct bnx2x *bp)
return rc;
}
-static void bnx2x_fw_dump(struct bnx2x *bp)
+void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl)
{
- u32 addr;
+ u32 addr, val;
u32 mark, offset;
__be32 data[9];
int word;
@@ -844,6 +844,14 @@ static void bnx2x_fw_dump(struct bnx2x *bp)
BNX2X_ERR("NO MCP - can not dump\n");
return;
}
+ netdev_printk(lvl, bp->dev, "bc %d.%d.%d\n",
+ (bp->common.bc_ver & 0xff0000) >> 16,
+ (bp->common.bc_ver & 0xff00) >> 8,
+ (bp->common.bc_ver & 0xff));
+
+ val = REG_RD(bp, MCP_REG_MCPR_CPU_PROGRAM_COUNTER);
+ if (val == REG_RD(bp, MCP_REG_MCPR_CPU_PROGRAM_COUNTER))
+ printk("%s" "MCP PC at 0x%x\n", lvl, val);
if (BP_PATH(bp) == 0)
trace_shmem_base = bp->common.shmem_base;
@@ -853,9 +861,9 @@ static void bnx2x_fw_dump(struct bnx2x *bp)
mark = REG_RD(bp, addr);
mark = (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH)
+ ((mark + 0x3) & ~0x3) - 0x08000000;
- pr_err("begin fw dump (mark 0x%x)\n", mark);
+ printk("%s" "begin fw dump (mark 0x%x)\n", lvl, mark);
- pr_err("");
+ printk("%s", lvl);
for (offset = mark; offset <= trace_shmem_base; offset += 0x8*4) {
for (word = 0; word < 8; word++)
data[word] = htonl(REG_RD(bp, offset + 4*word));
@@ -868,7 +876,12 @@ static void bnx2x_fw_dump(struct bnx2x *bp)
data[8] = 0x0;
pr_cont("%s", (char *)data);
}
- pr_err("end of fw dump\n");
+ printk("%s" "end of fw dump\n", lvl);
+}
+
+static inline void bnx2x_fw_dump(struct bnx2x *bp)
+{
+ bnx2x_fw_dump_lvl(bp, KERN_ERR);
}
void bnx2x_panic_dump(struct bnx2x *bp)
diff --git a/drivers/net/bnx2x/bnx2x_reg.h b/drivers/net/bnx2x/bnx2x_reg.h
index 86bba25..40bddca 100644
--- a/drivers/net/bnx2x/bnx2x_reg.h
+++ b/drivers/net/bnx2x/bnx2x_reg.h
@@ -933,6 +933,7 @@
* clear; 1 = set. Data valid only in addresses 0-4. all the rest are zero. */
#define IGU_REG_WRITE_DONE_PENDING 0x130480
#define MCP_A_REG_MCPR_SCRATCH 0x3a0000
+#define MCP_REG_MCPR_CPU_PROGRAM_COUNTER 0x8501c
#define MCP_REG_MCPR_NVM_ACCESS_ENABLE 0x86424
#define MCP_REG_MCPR_NVM_ADDR 0x8640c
#define MCP_REG_MCPR_NVM_CFG4 0x8642c
--
1.7.2.2
--
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