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bnx2: Add MCP dump
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to help debug issues related to management firmware.

Signed-off-by: Jeffrey Huang <huangjw@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Jeffrey Huang authored and David S. Miller committed Jul 14, 2011
1 parent 558e4c7 commit ecdbf6e
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Showing 2 changed files with 56 additions and 13 deletions.
61 changes: 48 additions & 13 deletions drivers/net/bnx2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2443,6 +2443,48 @@ bnx2_set_phy_loopback(struct bnx2 *bp)
return 0;
}

static void
bnx2_dump_mcp_state(struct bnx2 *bp)
{
struct net_device *dev = bp->dev;
u32 mcp_p0, mcp_p1;

netdev_err(dev, "<--- start MCP states dump --->\n");
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
mcp_p0 = BNX2_MCP_STATE_P0;
mcp_p1 = BNX2_MCP_STATE_P1;
} else {
mcp_p0 = BNX2_MCP_STATE_P0_5708;
mcp_p1 = BNX2_MCP_STATE_P1_5708;
}
netdev_err(dev, "DEBUG: MCP_STATE_P0[%08x] MCP_STATE_P1[%08x]\n",
bnx2_reg_rd_ind(bp, mcp_p0), bnx2_reg_rd_ind(bp, mcp_p1));
netdev_err(dev, "DEBUG: MCP mode[%08x] state[%08x] evt_mask[%08x]\n",
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_MODE),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_STATE),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_EVENT_MASK));
netdev_err(dev, "DEBUG: pc[%08x] pc[%08x] instr[%08x]\n",
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_INSTRUCTION));
netdev_err(dev, "DEBUG: shmem states:\n");
netdev_err(dev, "DEBUG: drv_mb[%08x] fw_mb[%08x] link_status[%08x]",
bnx2_shmem_rd(bp, BNX2_DRV_MB),
bnx2_shmem_rd(bp, BNX2_FW_MB),
bnx2_shmem_rd(bp, BNX2_LINK_STATUS));
pr_cont(" drv_pulse_mb[%08x]\n", bnx2_shmem_rd(bp, BNX2_DRV_PULSE_MB));
netdev_err(dev, "DEBUG: dev_info_signature[%08x] reset_type[%08x]",
bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE),
bnx2_shmem_rd(bp, BNX2_BC_STATE_RESET_TYPE));
pr_cont(" condition[%08x]\n",
bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION));
DP_SHMEM_LINE(bp, 0x3cc);
DP_SHMEM_LINE(bp, 0x3dc);
DP_SHMEM_LINE(bp, 0x3ec);
netdev_err(dev, "DEBUG: 0x3fc[%08x]\n", bnx2_shmem_rd(bp, 0x3fc));
netdev_err(dev, "<--- end MCP states dump --->\n");
}

static int
bnx2_fw_sync(struct bnx2 *bp, u32 msg_data, int ack, int silent)
{
Expand Down Expand Up @@ -2471,13 +2513,14 @@ bnx2_fw_sync(struct bnx2 *bp, u32 msg_data, int ack, int silent)

/* If we timed out, inform the firmware that this is the case. */
if ((val & BNX2_FW_MSG_ACK) != (msg_data & BNX2_DRV_MSG_SEQ)) {
if (!silent)
pr_err("fw sync timeout, reset code = %x\n", msg_data);

msg_data &= ~BNX2_DRV_MSG_CODE;
msg_data |= BNX2_DRV_MSG_CODE_FW_TIMEOUT;

bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
if (!silent) {
pr_err("fw sync timeout, reset code = %x\n", msg_data);
bnx2_dump_mcp_state(bp);
}

return -EBUSY;
}
Expand Down Expand Up @@ -6316,7 +6359,7 @@ static void
bnx2_dump_state(struct bnx2 *bp)
{
struct net_device *dev = bp->dev;
u32 mcp_p0, mcp_p1, val1, val2;
u32 val1, val2;

pci_read_config_dword(bp->pdev, PCI_COMMAND, &val1);
netdev_err(dev, "DEBUG: intr_sem[%x] PCI_CMD[%08x]\n",
Expand All @@ -6329,15 +6372,6 @@ bnx2_dump_state(struct bnx2 *bp)
REG_RD(bp, BNX2_EMAC_RX_STATUS));
netdev_err(dev, "DEBUG: RPM_MGMT_PKT_CTRL[%08x]\n",
REG_RD(bp, BNX2_RPM_MGMT_PKT_CTRL));
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
mcp_p0 = BNX2_MCP_STATE_P0;
mcp_p1 = BNX2_MCP_STATE_P1;
} else {
mcp_p0 = BNX2_MCP_STATE_P0_5708;
mcp_p1 = BNX2_MCP_STATE_P1_5708;
}
netdev_err(dev, "DEBUG: MCP_STATE_P0[%08x] MCP_STATE_P1[%08x]\n",
bnx2_reg_rd_ind(bp, mcp_p0), bnx2_reg_rd_ind(bp, mcp_p1));
netdev_err(dev, "DEBUG: HC_STATS_INTERRUPT_STATUS[%08x]\n",
REG_RD(bp, BNX2_HC_STATS_INTERRUPT_STATUS));
if (bp->flags & BNX2_FLAG_USING_MSIX)
Expand All @@ -6351,6 +6385,7 @@ bnx2_tx_timeout(struct net_device *dev)
struct bnx2 *bp = netdev_priv(dev);

bnx2_dump_state(bp);
bnx2_dump_mcp_state(bp);

/* This allows the netif to be shutdown gracefully before resetting */
schedule_work(&bp->reset_task);
Expand Down
8 changes: 8 additions & 0 deletions drivers/net/bnx2.h
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Original file line number Diff line number Diff line change
Expand Up @@ -7370,4 +7370,12 @@ struct bnx2_rv2p_fw_file {

#define HOST_VIEW_SHMEM_BASE 0x167c00

#define DP_SHMEM_LINE(bp, offset) \
netdev_err(bp->dev, "DEBUG: %08x: %08x %08x %08x %08x\n", \
offset, \
bnx2_shmem_rd(bp, offset), \
bnx2_shmem_rd(bp, offset + 4), \
bnx2_shmem_rd(bp, offset + 8), \
bnx2_shmem_rd(bp, offset + 12))

#endif

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