Add support for Intel i82541EI Gigabit Ethernet Controller.
Reference: /n/sources/patch/applied/etherigbe-i82541ei
Date: Sun Oct 24 19:46:04 CES 2010
Signed-off-by: djc@9grid.fr

--- /sys/src/9/pc/etherigbe.c	Sun Oct 24 19:43:40 2010
+++ /sys/src/9/pc/etherigbe.c	Sun Oct 24 19:43:34 2010
@@ -34,6 +34,7 @@
 	i82544ei	= (0x1008<<16)|0x8086,
 	i82544eif	= (0x1009<<16)|0x8086,
 	i82544gc	= (0x100d<<16)|0x8086,
+	i82541ei	= (0x1013<<16)|0x8086,
 	i82547ei	= (0x1019<<16)|0x8086,
 	i82540em	= (0x100E<<16)|0x8086,
 	i82540eplp	= (0x101E<<16)|0x8086,
@@ -903,6 +904,7 @@
 	case i82544ei:
 	case i82544eif:
 	case i82544gc:
+	case i82541ei:
 	case i82547ei:
 	case i82540em:
 	case i82540eplp:
@@ -1486,6 +1488,7 @@
 	case i82544ei:
 	case i82544eif:
 	case i82544gc:
+	case i82541ei:
 	case i82547ei:
 	case i82540em:
 	case i82540eplp:
@@ -1666,6 +1669,7 @@
 	case i82545gmc:
 	case i82546gb:
 	case i82546eb:
+	case i82541ei:
 	case i82547ei:
 		areq = 1;
 		csr32w(ctlr, Eecd, eecd|Areq);
@@ -1927,6 +1931,7 @@
 		case i82544ei:
 		case i82544eif:
 		case i82544gc:
+		case i82541ei:
 		case i82547ei:
 		case i82540em:
 		case i82540eplp: