Driver for Intel PRO/1000 gigabit ethernet adapters.

This driver should work with all current models of gigabit ethernet adapters.

Driver written by Intel
Ported from FreeBSD by Henric Jungheim <henric@attbi.com>
bus_dma and endian support by me.

1 files changed, 189 insertions, 0 deletions

diff --git a/sys/dev/pci/if_em.h b/sys/dev/pci/if_em.h
new file mode 100644
index 00000000000..f8167d415a9
--- /dev/null
+++ b/sys/dev/pci/if_em.h
@@ -0,0 +1,189 @@
+/**************************************************************************
+
+Copyright (c) 2001-2002 Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms of the Software, with or
+without modification, are permitted provided that the following conditions
+are met:
+
+ 1. Redistributions of source code of the Software may retain the above
+    copyright notice, this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form of the Software may reproduce the above
+    copyright notice, this list of conditions and the following disclaimer
+    in the documentation and/or other materials provided with the
+    distribution.
+
+ 3. Neither the name of the Intel Corporation nor the names of its
+    contributors shall be used to endorse or promote products derived from
+    this Software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR ITS CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+***************************************************************************/
+
+/*$FreeBSD$*/
+
+#ifndef _EM_H_DEFINED_
+#define _EM_H_DEFINED_
+
+#include <dev/pci/if_em_hw.h>
+
+/* Tunables */
+#define MAX_TXD                         256
+#define MAX_RXD                         256
+#define TX_CLEANUP_THRESHOLD            MAX_TXD / 8
+#define TIDV                            128     
+#define RIDV                            28      
+#define DO_AUTO_NEG                     1       
+#define WAIT_FOR_AUTO_NEG_DEFAULT       1       
+#define AUTONEG_ADV_DEFAULT             (ADVERTISE_10_HALF |	\
+					 ADVERTISE_10_FULL |	\
+                                         ADVERTISE_100_HALF |	\
+					 ADVERTISE_100_FULL |	\
+                                         ADVERTISE_1000_FULL)
+#define EM_REPORT_TX_EARLY              2
+#define EM_CHECKSUM_FEATURES            (CSUM_TCP | CSUM_UDP)
+#define EM_MAX_INTR                     3
+#define EM_TX_TIMEOUT                   5    /* set to 5 seconds */
+
+
+#define EM_VENDOR_ID                    0x8086
+#define EM_MMBA                         0x0010 /* Mem base address */
+#define EM_ROUNDUP(size, unit) (((size) + (unit) - 1) & ~((unit) - 1))
+#define EM_JUMBO_PBA                    0x00000028
+#define EM_DEFAULT_PBA                  0x00000030
+
+#define IOCTL_CMD_TYPE                  u_long
+#define MAX_NUM_MULTICAST_ADDRESSES     128
+#define PCI_ANY_ID                      (~0U)
+#define ETHER_ALIGN                     2
+#define QTAG_TYPE                       0x8100
+
+/* Defines for printing debug information */
+#define DEBUG_INIT  0
+#define DEBUG_IOCTL 0
+#define DEBUG_HW    0
+
+#define INIT_DEBUGOUT(S)            if (DEBUG_INIT)  printf(S "\n")
+#define INIT_DEBUGOUT1(S, A)        if (DEBUG_INIT)  printf(S "\n", A)
+#define INIT_DEBUGOUT2(S, A, B)     if (DEBUG_INIT)  printf(S "\n", A, B)
+#define IOCTL_DEBUGOUT(S)           if (DEBUG_IOCTL) printf(S "\n")
+#define IOCTL_DEBUGOUT1(S, A)       if (DEBUG_IOCTL) printf(S "\n", A)
+#define IOCTL_DEBUGOUT2(S, A, B)    if (DEBUG_IOCTL) printf(S "\n", A, B)
+#define HW_DEBUGOUT(S)              if (DEBUG_HW) printf(S "\n")
+#define HW_DEBUGOUT1(S, A)          if (DEBUG_HW) printf(S "\n", A)
+#define HW_DEBUGOUT2(S, A, B)       if (DEBUG_HW) printf(S "\n", A, B)
+
+
+/* Supported RX Buffer Sizes */
+#define EM_RXBUFFER_2048        2048
+#define EM_RXBUFFER_4096        4096
+#define EM_RXBUFFER_8192        8192
+#define EM_RXBUFFER_16384      16384
+
+struct em_tx_buffer {
+	SIMPLEQ_ENTRY(em_tx_buffer) em_tx_entry;
+	struct mbuf    *m_head;
+	bus_dmamap_t	dmamap;
+	u_int32_t       num_tx_desc_used;
+};
+
+
+/* ******************************************************************************
+ * This structure stores information about the 2k aligned receive buffer
+ * into which the E1000 DMA's frames. 
+ * ******************************************************************************/
+struct em_rx_buffer {
+	SIMPLEQ_ENTRY(em_rx_buffer) em_rx_entry;
+	struct mbuf    *m_head;
+	bus_dmamap_t	dmamap;
+	u_int64_t	buffer_addr;
+};
+
+typedef enum _XSUM_CONTEXT_T {
+	OFFLOAD_NONE,
+	OFFLOAD_TCP_IP,
+	OFFLOAD_UDP_IP
+} XSUM_CONTEXT_T;
+
+/* Our adapter structure */
+struct em_softc {
+	struct device	sc_dv;
+	struct arpcom	arpcom;         /* interface info */
+	struct em_hw    hw;
+
+	/* FreeBSD operating-system-specific structures */
+	struct em_osdep osdep;
+
+	int             io_rid;
+	void                    *sc_intrhand;
+	struct ifmedia  media;
+	struct timeout	em_timeout;
+
+	/* Info about the board itself */
+	u_int32_t       part_num;
+	u_int8_t        link_active;
+	u_int16_t       link_speed;
+	u_int16_t       link_duplex;
+	u_int32_t       tx_int_delay;
+	u_int32_t       rx_int_delay;
+
+	XSUM_CONTEXT_T  active_checksum_context;
+
+	/* Transmit definitions */
+	struct em_tx_desc *first_tx_desc;
+	struct em_tx_desc *last_tx_desc;
+	struct em_tx_desc *next_avail_tx_desc;
+	struct em_tx_desc *oldest_used_tx_desc;
+	struct em_tx_desc *tx_desc_base;
+	volatile u_int16_t num_tx_desc_avail;
+	u_int16_t       num_tx_desc;
+	u_int32_t       txd_cmd;
+	struct em_tx_buffer   *tx_buffer_area;
+	SIMPLEQ_HEAD(__em_tx_buffer_free, em_tx_buffer)  free_tx_buffer_list;
+	SIMPLEQ_HEAD(__em_tx_buffer_used, em_tx_buffer)  used_tx_buffer_list;
+
+	/* Receive definitions */
+	struct em_rx_desc *first_rx_desc;
+	struct em_rx_desc *last_rx_desc;
+	struct em_rx_desc *next_rx_desc_to_check;
+	struct em_rx_desc *rx_desc_base;
+	u_int16_t       num_rx_desc;
+	u_int32_t       rx_buffer_len;
+	struct em_rx_buffer   *rx_buffer_area;
+	SIMPLEQ_HEAD(__em_rx_buffer, em_rx_buffer)  rx_buffer_list;
+
+	/* Jumbo frame */
+	struct mbuf     *fmp;
+	struct mbuf     *lmp;
+
+	/* Misc stats maintained by the driver */
+	unsigned long   dropped_pkts;
+	unsigned long   mbuf_alloc_failed;
+	unsigned long   mbuf_cluster_failed;
+	unsigned long   xmit_pullup;
+	unsigned long   no_tx_desc_avail;
+	unsigned long   no_tx_buffer_avail1;
+	unsigned long   no_tx_buffer_avail2;
+#ifdef DBG_STATS
+	unsigned long   no_pkts_avail;
+	unsigned long   clean_tx_interrupts;
+
+#endif
+
+	struct em_hw_stats stats;
+};
+
+#endif                                                  /* _EM_H_DEFINED_ */