Add support to bge(4) to not break IPMI support when the driver attaches

to it.  Try to co-operate with the IPMI/ASF firmware accessing the PHY.
One we get link we don't mess with the PHY.  If we do then over time
the NIC will go off line.  It would be nice if we could tell if IPMI
was enabled on the chip but I can't figure out a reliable way to do
that.  The scheme I tried worked on a Dell PE850 but not on an HP machine.
So we assume any NIC that has ASF capability needs to deal with it.

The code was inspired by the support in Linux from kernel.org and Broadcom.
Broadcom did give me some info. but it is rather limited and is mostly
just what is in the Linux driver.  Thanks to the numerous people that
helped debug the many prior versions and that I didn't break other
bge(4) HW.

Reviewed by:	several people
Tested by:	even more

1 files changed, 15 insertions, 2 deletions

diff --git a/sys/dev/bge/if_bgereg.h b/sys/dev/bge/if_bgereg.h
index 1e30010..fdfac39 100644
--- a/sys/dev/bge/if_bgereg.h
+++ b/sys/dev/bge/if_bgereg.h
@@ -74,6 +74,11 @@
 #define BGE_SOFTWARE_GENCOMM		0x00000B50
 #define BGE_SOFTWARE_GENCOMM_SIG	0x00000B54
 #define BGE_SOFTWARE_GENCOMM_NICCFG	0x00000B58
+#define BGE_SOFTWARE_GENCOMM_FW		0x00000B78
+#define    BGE_FW_DRV_ALIVE		0x00000001
+#define    BGE_FW_PAUSE			0x00000002
+#define BGE_SOFTWARE_GENNCOMM_FW_LEN	0x00000B7C
+#define BGE_SOFTWARE_GENNCOMM_FW_DATA	0x00000B80
 #define BGE_SOFTWARE_GENCOMM_END	0x00000FFF
 #define BGE_UNMAPPED			0x00001000
 #define BGE_UNMAPPED_END		0x00001FFF
@@ -1651,6 +1656,7 @@
 #define BGE_MODE_CTL			0x6800
 #define BGE_MISC_CFG			0x6804
 #define BGE_MISC_LOCAL_CTL		0x6808
+#define BGE_CPU_EVENT			0x6810
 #define BGE_EE_ADDR			0x6838
 #define BGE_EE_DATA			0x683C
 #define BGE_EE_CTL			0x6840
@@ -2064,6 +2070,7 @@ struct bge_status_block {
 #define BGE_HWCFG_VOLTAGE		0x00000003
 #define BGE_HWCFG_PHYLED_MODE		0x0000000C
 #define BGE_HWCFG_MEDIA			0x00000030
+#define BGE_HWCFG_ASF			0x00000080
 
 #define BGE_VOLTAGE_1POINT3		0x00000000
 #define BGE_VOLTAGE_1POINT8		0x00000001
@@ -2434,6 +2441,10 @@ struct bge_bcom_hack {
 	int			val;
 };
 
+#define ASF_ENABLE		1
+#define ASF_NEW_HANDSHAKE	2
+#define ASF_STACKUP		4
+
 struct bge_softc {
 	struct ifnet		*bge_ifp;	/* interface info */
 	device_t		bge_dev;
@@ -2453,8 +2464,10 @@ struct bge_softc {
 #define BGE_FLAG_PCIX		0x00000010
 #define BGE_FLAG_PCIE		0x00000020
 	uint32_t		bge_chipid;
-	uint8_t		bge_asicrev;
-	uint8_t		bge_chiprev;
+	uint8_t			bge_asicrev;
+	uint8_t			bge_chiprev;
+	uint8_t			bge_asf_mode;
+	uint8_t			bge_asf_count;
 	struct bge_ring_data	bge_ldata;	/* rings */
 	struct bge_chain_data	bge_cdata;	/* mbufs */
 	uint16_t		bge_tx_saved_considx;