bnx2x: Add MFW dump support

Devices with up-to-date management FW will be able to store register dumps
on their persistent storage - in case management FW identifies a fatal
error it would gather and store such dumps, which could later be retrieved
using specific debug tools.

This patch adds the necessary part in the driver in order to make the
feature operational, as well as update users [under debug] during load
in case their device contains a dump of a previous crash.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 0a069fa8e1fb..78e55fe616e3 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -3709,6 +3709,34 @@ out:
 	   ethver, iscsiver, fcoever);
 }
 
+void bnx2x_update_mfw_dump(struct bnx2x *bp)
+{
+	struct timeval epoc;
+	u32 drv_ver;
+	u32 valid_dump;
+
+	if (!SHMEM2_HAS(bp, drv_info))
+		return;
+
+	/* Update Driver load time */
+	do_gettimeofday(&epoc);
+	SHMEM2_WR(bp, drv_info.epoc, epoc.tv_sec);
+
+	drv_ver = bnx2x_update_mng_version_utility(DRV_MODULE_VERSION, true);
+	SHMEM2_WR(bp, drv_info.drv_ver, drv_ver);
+
+	SHMEM2_WR(bp, drv_info.fw_ver, REG_RD(bp, XSEM_REG_PRAM));
+
+	/* Check & notify On-Chip dump. */
+	valid_dump = SHMEM2_RD(bp, drv_info.valid_dump);
+
+	if (valid_dump & FIRST_DUMP_VALID)
+		DP(NETIF_MSG_IFUP, "A valid On-Chip MFW dump found on 1st partition\n");
+
+	if (valid_dump & SECOND_DUMP_VALID)
+		DP(NETIF_MSG_IFUP, "A valid On-Chip MFW dump found on 2nd partition\n");
+}
+
 static void bnx2x_oem_event(struct bnx2x *bp, u32 event)
 {
 	u32 cmd_ok, cmd_fail;