Import the nfe (nForce Ethernet) driver from OpenBSD.

This is a pure open source NIC driver with a BSD license.
These bits were taken from the OpenBSD public CVS repository on 1-May-06.

1 files changed, 187 insertions, 0 deletions

diff --git a/sys/dev/nfe/if_nfereg.h b/sys/dev/nfe/if_nfereg.h
new file mode 100644
index 0000000..e1f4887
--- /dev/null
+++ b/sys/dev/nfe/if_nfereg.h
@@ -0,0 +1,187 @@
+/*	$OpenBSD: if_nfereg.h,v 1.18 2006/05/01 15:59:31 brad Exp $	*/
+
+/*-
+ * Copyright (c) 2005 Jonathan Gray <jsg@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define NFE_PCI_BA		0x10
+
+#define NFE_RX_RING_COUNT	128
+#define NFE_TX_RING_COUNT	256
+
+#define NFE_JBYTES		(ETHER_MAX_LEN_JUMBO + ETHER_ALIGN)
+#define NFE_JPOOL_COUNT		(NFE_RX_RING_COUNT + 64)
+#define NFE_JPOOL_SIZE		(NFE_JPOOL_COUNT * NFE_JBYTES)
+
+#define NFE_MAX_SCATTER		(NFE_TX_RING_COUNT - 2)
+
+#define NFE_IRQ_STATUS		0x000
+#define NFE_IRQ_MASK		0x004
+#define NFE_SETUP_R6		0x008
+#define NFE_IMTIMER		0x00c
+#define NFE_MISC1		0x080
+#define NFE_TX_CTL		0x084
+#define NFE_TX_STATUS		0x088
+#define NFE_RXFILTER		0x08c
+#define NFE_RXBUFSZ		0x090
+#define NFE_RX_CTL		0x094
+#define NFE_RX_STATUS		0x098
+#define NFE_RNDSEED		0x09c
+#define NFE_SETUP_R1		0x0a0
+#define NFE_SETUP_R2		0x0a4
+#define NFE_MACADDR_HI		0x0a8
+#define NFE_MACADDR_LO		0x0ac
+#define NFE_MULTIADDR_HI	0x0b0
+#define NFE_MULTIADDR_LO	0x0b4
+#define NFE_MULTIMASK_HI	0x0b8
+#define NFE_MULTIMASK_LO	0x0bc
+#define NFE_PHY_IFACE		0x0c0
+#define NFE_TX_RING_ADDR_LO	0x100
+#define NFE_RX_RING_ADDR_LO	0x104
+#define NFE_RING_SIZE		0x108
+#define NFE_TX_UNK		0x10c
+#define NFE_LINKSPEED		0x110
+#define NFE_SETUP_R5		0x130
+#define NFE_SETUP_R3		0x13C
+#define NFE_SETUP_R7		0x140
+#define NFE_RXTX_CTL		0x144
+#define NFE_TX_RING_ADDR_HI	0x148
+#define NFE_RX_RING_ADDR_HI	0x14c
+#define NFE_PHY_STATUS		0x180
+#define NFE_SETUP_R4		0x184
+#define NFE_STATUS		0x188
+#define NFE_PHY_SPEED		0x18c
+#define NFE_PHY_CTL		0x190
+#define NFE_PHY_DATA		0x194
+#define NFE_WOL_CTL		0x200
+#define NFE_PATTERN_CRC		0x204
+#define NFE_PATTERN_MASK	0x208
+#define NFE_PWR_CAP		0x268
+#define NFE_PWR_STATE		0x26c
+#define NFE_VTAG_CTL		0x300
+
+#define NFE_PHY_ERROR		0x00001
+#define NFE_PHY_WRITE		0x00400
+#define NFE_PHY_BUSY		0x08000
+#define NFE_PHYADD_SHIFT	5
+
+#define NFE_STATUS_MAGIC	0x140000
+
+#define NFE_R1_MAGIC		0x16070f
+#define NFE_R2_MAGIC		0x16
+#define NFE_R4_MAGIC		0x08
+#define NFE_R6_MAGIC		0x03
+#define NFE_WOL_MAGIC		0x7770
+#define NFE_RX_START		0x01
+#define NFE_TX_START		0x01
+
+#define NFE_IRQ_RXERR		0x0001
+#define NFE_IRQ_RX		0x0002
+#define NFE_IRQ_RX_NOBUF	0x0004
+#define NFE_IRQ_TXERR		0x0008
+#define NFE_IRQ_TX_DONE		0x0010
+#define NFE_IRQ_TIMER		0x0020
+#define NFE_IRQ_LINK		0x0040
+#define NFE_IRQ_TXERR2		0x0080
+#define NFE_IRQ_TX1		0x0100
+
+#define NFE_IRQ_WANTED							\
+	(NFE_IRQ_RXERR | NFE_IRQ_RX_NOBUF | NFE_IRQ_RX |		\
+	 NFE_IRQ_TXERR | NFE_IRQ_TXERR2 | NFE_IRQ_TX_DONE |		\
+	 NFE_IRQ_LINK)
+
+#define NFE_RXTX_KICKTX		0x0001
+#define NFE_RXTX_BIT1		0x0002
+#define NFE_RXTX_BIT2		0x0004
+#define NFE_RXTX_RESET		0x0010
+#define NFE_RXTX_VTAG_STRIP	0x0040
+#define NFE_RXTX_VTAG_INSERT	0x0080
+#define NFE_RXTX_RXCSUM		0x0400
+#define NFE_RXTX_V2MAGIC	0x2100
+#define NFE_RXTX_V3MAGIC	0x2200
+#define NFE_RXFILTER_MAGIC	0x007f0008
+#define NFE_U2M			(1 << 5)
+#define NFE_PROMISC		(1 << 7)
+
+/* default interrupt moderation timer of 128us */
+#define NFE_IM_DEFAULT	((128 * 100) / 1024)
+
+#define NFE_VTAG_ENABLE		(1 << 13)
+
+#define NFE_PWR_VALID		(1 << 8)
+#define NFE_PWR_WAKEUP		(1 << 15)
+
+#define NFE_MEDIA_SET		0x10000
+#define	NFE_MEDIA_1000T		0x00032
+#define NFE_MEDIA_100TX		0x00064
+#define NFE_MEDIA_10T		0x003e8
+
+#define NFE_PHY_100TX		(1 << 0)
+#define NFE_PHY_1000T		(1 << 1)
+#define NFE_PHY_HDX		(1 << 8)
+
+#define NFE_MISC1_MAGIC		0x003b0f3c
+#define NFE_MISC1_HDX		(1 << 1)
+
+#define NFE_SEED_MASK		0x0003ff00
+#define NFE_SEED_10T		0x00007f00
+#define NFE_SEED_100TX		0x00002d00
+#define NFE_SEED_1000T		0x00007400
+
+/* Rx/Tx descriptor */
+struct nfe_desc32 {
+	uint32_t	physaddr;
+	uint16_t	length;
+	uint16_t	flags;
+#define NFE_RX_FIXME_V1		0x6004
+#define NFE_RX_VALID_V1		(1 << 0)
+#define NFE_TX_ERROR_V1		0x7808
+#define NFE_TX_LASTFRAG_V1	(1 << 0)
+} __packed;
+
+#define NFE_V1_TXERR	"\020"	\
+	"\14TXERROR\13UNDERFLOW\12LATECOLLISION\11LOSTCARRIER\10DEFERRED" \
+	"\08FORCEDINT\03RETRY\00LASTPACKET"
+
+/* V2 Rx/Tx descriptor */
+struct nfe_desc64 {
+	uint32_t	physaddr[2];
+	uint32_t	vtag;
+#define NFE_RX_VTAG		(1 << 16)
+#define NFE_TX_VTAG		(1 << 18)
+	uint16_t	length;
+	uint16_t	flags;
+#define NFE_RX_FIXME_V2		0x4300
+#define NFE_RX_VALID_V2		(1 << 13)
+#define NFE_TX_ERROR_V2		0x5c04
+#define NFE_TX_LASTFRAG_V2	(1 << 13)
+} __packed;
+
+#define NFE_V2_TXERR	"\020"	\
+	"\14FORCEDINT\13LASTPACKET\12UNDERFLOW\10LOSTCARRIER\09DEFERRED\02RETRY"
+
+/* flags common to V1/V2 descriptors */
+#define NFE_RX_CSUMOK		0x1c00
+#define NFE_RX_ERROR		(1 << 14)
+#define NFE_RX_READY		(1 << 15)
+#define NFE_TX_TCP_CSUM		(1 << 10)
+#define NFE_TX_IP_CSUM		(1 << 11)
+#define NFE_TX_VALID		(1 << 15)
+
+#define NFE_READ(sc, reg) \
+	bus_space_read_4((sc)->sc_memt, (sc)->sc_memh, (reg))
+
+#define NFE_WRITE(sc, reg, val) \
+	bus_space_write_4((sc)->sc_memt, (sc)->sc_memh, (reg), (val))