diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index df350708022..f7f9aa80726 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -719,7 +719,17 @@ void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl) trace_shmem_base = bp->common.shmem_base; else trace_shmem_base = SHMEM2_RD(bp, other_shmem_base_addr); - addr = trace_shmem_base - 0x0800 + 4; + addr = trace_shmem_base - 0x800; + + /* validate TRCB signature */ + mark = REG_RD(bp, addr); + if (mark != MFW_TRACE_SIGNATURE) { + BNX2X_ERR("Trace buffer signature is missing."); + return ; + } + + /* read cyclic buffer pointer */ + addr += 4; mark = REG_RD(bp, addr); mark = (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH) + ((mark + 0x3) & ~0x3) - 0x08000000; |