Patch #3 - Add a new ioctl to access SFP+ module diagnostic

           data via the I2C routines in shared code.

2 files changed, 28 insertions, 2 deletions

diff --git a/sys/dev/ixgbe/ixgbe.c b/sys/dev/ixgbe/ixgbe.c
index 40a1dc0..b1c905a 100644
--- a/sys/dev/ixgbe/ixgbe.c
+++ b/sys/dev/ixgbe/ixgbe.c
@@ -47,7 +47,7 @@ int             ixgbe_display_debug_stats = 0;
 /*********************************************************************
  *  Driver version
  *********************************************************************/
-char ixgbe_driver_version[] = "2.5.0 - 2";
+char ixgbe_driver_version[] = "2.5.0 - 3";
 
 /*********************************************************************
  *  PCI Device ID Table
@@ -919,6 +919,7 @@ static int
 ixgbe_ioctl(struct ifnet * ifp, u_long command, caddr_t data)
 {
 	struct adapter	*adapter = ifp->if_softc;
+	struct ixgbe_hw *hw = &adapter->hw;
 	struct ifreq	*ifr = (struct ifreq *) data;
 #if defined(INET) || defined(INET6)
 	struct ifaddr *ifa = (struct ifaddr *)data;
@@ -1024,7 +1025,22 @@ ixgbe_ioctl(struct ifnet * ifp, u_long command, caddr_t data)
 		VLAN_CAPABILITIES(ifp);
 		break;
 	}
-
+	case SIOCGI2C:
+	{
+		struct ixgbe_i2c_req	i2c;
+		IOCTL_DEBUGOUT("ioctl: SIOCGI2C (Get I2C Data)");
+		error = copyin(ifr->ifr_data, &i2c, sizeof(i2c));
+		if (error)
+			break;
+		if ((i2c.dev_addr != 0xA0) || (i2c.dev_addr != 0xA2)){
+			error = EINVAL;
+			break;
+		}
+		hw->phy.ops.read_i2c_byte(hw, i2c.offset,
+		    i2c.dev_addr, i2c.data);
+		error = copyout(&i2c, ifr->ifr_data, sizeof(i2c));
+		break;
+	}
 	default:
 		IOCTL_DEBUGOUT1("ioctl: UNKNOWN (0x%X)\n", (int)command);
 		error = ether_ioctl(ifp, command, data);
diff --git a/sys/dev/ixgbe/ixgbe.h b/sys/dev/ixgbe/ixgbe.h
index 25d364d..fa00239 100644
--- a/sys/dev/ixgbe/ixgbe.h
+++ b/sys/dev/ixgbe/ixgbe.h
@@ -199,6 +199,9 @@
 #define IXGBE_BR_SIZE			4096
 #define IXGBE_QUEUE_MIN_FREE		32
 
+/* IOCTL define to gather SFP+ Diagnostic data */
+#define SIOCGI2C	SIOCGIFGENERIC
+
 /* Offload bits in mbuf flag */
 #if __FreeBSD_version >= 800000
 #define CSUM_OFFLOAD		(CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
@@ -241,6 +244,13 @@ typedef struct _ixgbe_vendor_info_t {
 	unsigned int    index;
 } ixgbe_vendor_info_t;
 
+/* This is used to get SFP+ module data */
+struct ixgbe_i2c_req {
+        u8 dev_addr;
+        u8 offset;
+        u8 len;
+        u8 data[8];
+};
 
 struct ixgbe_tx_buf {
 	u32		eop_index;