bnx2x: validate FW trace prior to its printing
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
cb4dca2776
commit
de1288041d
|
@ -1129,6 +1129,8 @@ struct shm_dev_info { /* size */
|
|||
|
||||
#define FW_ACK_NUM_OF_POLL (FW_ACK_TIME_OUT_MS/FW_ACK_POLL_TIME_MS)
|
||||
|
||||
#define MFW_TRACE_SIGNATURE 0x54524342
|
||||
|
||||
/****************************************************************************
|
||||
* Driver <-> FW Mailbox *
|
||||
****************************************************************************/
|
||||
|
|
|
@ -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;
|
||||
|
|
Loading…
Reference in a new issue