This is the first commit of the Intel gigabit driver for

PRO/1000 cards.

Submitted by:Prafulla Deuskar
Reviewed by: Paul Saab
MFC after:1 week

1 files changed, 410 insertions, 0 deletions

diff --git a/sys/dev/em/if_em.h b/sys/dev/em/if_em.h
new file mode 100644
index 0000000..b1919cb
--- /dev/null
+++ b/sys/dev/em/if_em.h
@@ -0,0 +1,410 @@
+/**************************************************************************
+**************************************************************************
+
+Copyright (c) 2001 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 <sys/param.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/protosw.h>
+#include <sys/socket.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/bpf.h>
+#include <net/ethernet.h>
+#include <net/if_arp.h>
+#include <sys/sockio.h>
+
+#include <netinet/in_systm.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+
+#include <sys/bus.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <machine/resource.h>
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#include <machine/clock.h>
+#include <pci/pcivar.h>
+#include <pci/pcireg.h>
+#include <stddef.h>
+
+#include "opt_bdg.h"
+
+#include <dev/em/if_em_fxhw.h>
+#include <dev/em/if_em_phy.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_ENABLE_RXCSUM_OFFLOAD        1
+#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_JUMBO_ENABLE_DEFAULT         0
+
+
+#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 ETH_LENGTH_OF_ADDRESS           ETHER_ADDR_LEN
+#define PCI_COMMAND_REGISTER            PCIR_COMMAND
+#define MAX_NUM_MULTICAST_ADDRESSES     128
+#define PCI_ANY_ID                      (~0U)
+#define ETHER_ALIGN                     2
+#define CMD_MEM_WRT_INVALIDATE          0x0010
+
+/* Defines for printing debug information */
+#define DEBUG_INIT  0
+#define DEBUG_IOCTL 0
+#define DEBUG_HW    0
+#define DEBUG_TXRX  0
+#define DEBUG_RXCSUM 0
+#define DEBUG_TXCSUM 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)
+#define TXRX_DEBUGOUT(S)              if (DEBUG_TXRX) printf(S "\n")
+#define TXRX_DEBUGOUT1(S, A)          if (DEBUG_TXRX) printf(S "\n", A)
+#define TXRX_DEBUGOUT2(S, A, B)       if (DEBUG_TXRX) printf(S "\n", A, B)
+#define RXCSUM_DEBUGOUT(S)              if (DEBUG_RXCSUM) printf(S "\n")
+#define RXCSUM_DEBUGOUT1(S, A)          if (DEBUG_RXCSUM) printf(S "\n", A)
+#define RXCSUM_DEBUGOUT2(S, A, B)       if (DEBUG_RXCSUM) printf(S "\n", A, B)
+#define TXCSUM_DEBUGOUT(S)              if (DEBUG_TXCSUM) printf(S "\n")
+#define TXCSUM_DEBUGOUT1(S, A)          if (DEBUG_TXCSUM) printf(S "\n", A)
+#define TXCSUM_DEBUGOUT2(S, A, B)       if (DEBUG_TXCSUM) printf(S "\n", A, B)
+
+/* Device ID defines */
+#define PCI_DEVICE_ID_82542            0x1000
+#define PCI_DEVICE_ID_82543GC_FIBER    0x1001
+#define PCI_DEVICE_ID_82543GC_COPPER   0x1004
+#define PCI_DEVICE_ID_82544EI_FIBER    0x1009
+#define PCI_DEVICE_ID_82544EI_COPPER   0x1008
+#define PCI_DEVICE_ID_82544GC_STRG     0x100C
+#define PCI_DEVICE_ID_82544GC_COPPER   0x100D
+
+/* Supported RX Buffer Sizes */
+#define EM_RXBUFFER_2048        2048
+#define EM_RXBUFFER_4096        4096
+#define EM_RXBUFFER_8192        8192
+#define EM_RXBUFFER_16384      16384
+
+
+/* Jumbo Frame */
+#define EM_JSLOTS                   384
+#define EM_JUMBO_FRAMELEN          9018
+#define EM_JUMBO_MTU               (EM_JUMBO_FRAMELEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
+#define EM_JRAWLEN (EM_JUMBO_FRAMELEN + ETHER_ALIGN + sizeof(u_int64_t))
+#define EM_JLEN (EM_JRAWLEN + (sizeof(u_int64_t) - \
+                              (EM_JRAWLEN % sizeof(u_int64_t))))
+#define EM_JPAGESZ PAGE_SIZE
+#define EM_RESID (EM_JPAGESZ - (EM_JLEN * EM_JSLOTS) % EM_JPAGESZ)
+#define EM_JMEM ((EM_JLEN * EM_JSLOTS) + EM_RESID)
+
+struct em_jslot {
+        caddr_t                 em_buf;
+        int                     em_inuse;
+};
+
+struct em_jpool_entry {
+        int                             slot;
+        SLIST_ENTRY(em_jpool_entry)     em_jpool_entries;
+};
+
+
+
+/* ******************************************************************************
+ * vendor_info_array
+ *
+ * This array contains the list of Subvendor/Subdevice IDs on which the driver
+ * should load.
+ *
+ * ******************************************************************************/
+typedef struct _em_vendor_info_t
+{
+        unsigned int vendor_id;
+        unsigned int device_id;
+        unsigned int subvendor_id;
+        unsigned int subdevice_id;
+        unsigned int index;
+} em_vendor_info_t;
+
+
+struct em_tx_buffer {
+        STAILQ_ENTRY(em_tx_buffer) em_tx_entry;
+        struct mbuf    *Packet;
+        u_int32_t       NumTxDescriptorsUsed;
+};
+
+
+/* ******************************************************************************
+ * This structure stores information about the 2k aligned receive buffer
+ * into which the E1000 DMA's frames. 
+ * ******************************************************************************/
+struct em_rx_buffer {
+        STAILQ_ENTRY(em_rx_buffer) em_rx_entry;
+        struct mbuf    *Packet;
+        u_int32_t       LowPhysicalAddress;
+        u_int32_t       HighPhysicalAddress;
+};
+
+typedef enum _XSUM_CONTEXT_T {
+        OFFLOAD_NONE,
+        OFFLOAD_TCP_IP,
+        OFFLOAD_UDP_IP
+} XSUM_CONTEXT_T;
+
+/* Our adapter structure */
+struct adapter {
+        struct arpcom   interface_data;
+        struct adapter *next;
+        struct adapter *prev;
+
+        /* FreeBSD operating-system-specific structures */
+        bus_space_tag_t bus_space_tag;
+        bus_space_handle_t bus_space_handle;
+        struct device   *dev;
+        struct resource *res_memory;
+        struct resource *res_interrupt;
+        void            *int_handler_tag;
+        struct ifmedia  media;
+        struct callout_handle timer_handle;
+        u_int8_t        unit;
+
+        /* PCI Info */
+        u_int16_t       VendorId;
+        u_int16_t       DeviceId;
+        u_int8_t        RevId;
+        u_int16_t       SubVendorId;
+        u_int16_t       SubSystemId;
+        u_int16_t       PciCommandWord;
+
+        /* PCI Bus Info */
+        E1000_BUS_TYPE_ENUM BusType;
+        E1000_BUS_SPEED_ENUM BusSpeed;
+        E1000_BUS_WIDTH_ENUM BusWidth;
+
+        /* Info about the board itself */
+        u_int8_t        MacType;
+        u_int8_t        MediaType;
+        u_int32_t       PhyId;
+        u_int32_t       PhyAddress;
+        uint8_t         CurrentNetAddress[ETH_LENGTH_OF_ADDRESS];
+        uint8_t         PermNetAddress[ETH_LENGTH_OF_ADDRESS];
+        u_int32_t       PartNumber;
+
+        u_int8_t        AdapterStopped;
+        u_int8_t        DmaFairness;
+        u_int8_t        ReportTxEarly;
+        u_int32_t       MulticastFilterType;
+        u_int32_t       NumberOfMcAddresses;
+        u_int8_t        MulticastAddressList[MAX_NUM_MULTICAST_ADDRESSES][ETH_LENGTH_OF_ADDRESS];
+
+        u_int8_t        GetLinkStatus;
+        u_int8_t        LinkStatusChanged;
+        u_int8_t        LinkIsActive;
+        u_int32_t       AutoNegFailed;
+        u_int8_t        AutoNeg;
+        u_int16_t       AutoNegAdvertised;
+        u_int8_t        WaitAutoNegComplete;
+        u_int8_t        ForcedSpeedDuplex;
+        u_int16_t       LineSpeed;
+        u_int16_t       FullDuplex;
+        u_int8_t        TbiCompatibilityEnable;
+        u_int8_t        TbiCompatibilityOn;
+        u_int32_t       TxcwRegValue;
+        u_int32_t       OriginalFlowControl;
+        u_int32_t       FlowControl;
+        u_int16_t       FlowControlHighWatermark;
+        u_int16_t       FlowControlLowWatermark;
+        u_int16_t       FlowControlPauseTime;
+        u_int8_t        FlowControlSendXon;
+
+        u_int32_t       MaxFrameSize;
+        u_int32_t       TxIntDelay;
+        u_int32_t       RxIntDelay;
+
+        u_int8_t        RxChecksum;
+        XSUM_CONTEXT_T  ActiveChecksumContext;
+
+        u_int8_t        MdiX;
+        u_int8_t        DisablePolarityCorrection;
+
+        /* Transmit definitions */
+        struct _E1000_TRANSMIT_DESCRIPTOR *FirstTxDescriptor;
+        struct _E1000_TRANSMIT_DESCRIPTOR *LastTxDescriptor;
+        struct _E1000_TRANSMIT_DESCRIPTOR *NextAvailTxDescriptor;
+        struct _E1000_TRANSMIT_DESCRIPTOR *OldestUsedTxDescriptor;
+        struct _E1000_TRANSMIT_DESCRIPTOR *TxDescBase;
+        volatile u_int16_t NumTxDescriptorsAvail;
+        u_int16_t       NumTxDescriptors;
+        u_int32_t       TxdCmd;
+        struct em_tx_buffer   *tx_buffer_area;
+        STAILQ_HEAD(__em_tx_buffer_free, em_tx_buffer)  FreeSwTxPacketList;
+        STAILQ_HEAD(__em_tx_buffer_used, em_tx_buffer)  UsedSwTxPacketList;
+
+        /* Receive definitions */
+        struct _E1000_RECEIVE_DESCRIPTOR *FirstRxDescriptor;
+        struct _E1000_RECEIVE_DESCRIPTOR *LastRxDescriptor;
+        struct _E1000_RECEIVE_DESCRIPTOR *NextRxDescriptorToCheck;
+        struct _E1000_RECEIVE_DESCRIPTOR *RxDescBase;
+        u_int16_t       NumRxDescriptors;
+        u_int16_t       NumRxDescriptorsEmpty;
+        u_int16_t       NextRxDescriptorToFill;
+        u_int32_t       RxBufferLen;
+        struct em_rx_buffer   *rx_buffer_area;
+        STAILQ_HEAD(__em_rx_buffer, em_rx_buffer)  RxSwPacketList;
+
+        /* Jumbo frame */
+        u_int8_t               JumboEnable;
+        struct em_jslot        em_jslots[EM_JSLOTS];
+        void                  *em_jumbo_buf;
+        SLIST_HEAD(__em_jfreehead, em_jpool_entry)      em_jfree_listhead;
+        SLIST_HEAD(__em_jinusehead, em_jpool_entry)     em_jinuse_listhead;
+
+
+        /* Misc stats maintained by the driver */
+        unsigned long   DroppedPackets;
+        unsigned long   NoJumboBufAvail;
+        unsigned long   JumboMbufFailed;
+        unsigned long   JumboClusterFailed;
+        unsigned long   StdMbufFailed;
+        unsigned long   StdClusterFailed;
+#ifdef DBG_STATS
+        unsigned long   NoTxDescAvail;
+        unsigned long   NoPacketsAvail;
+        unsigned long   CleanTxInterrupts;
+        unsigned long   NoTxBufferAvail1;
+        unsigned long   NoTxBufferAvail2;
+#endif
+
+        /* Statistics registers present in the 82542 */
+        unsigned long   Crcerrs;
+        unsigned long   Symerrs;
+        unsigned long   Mpc;
+        unsigned long   Scc;
+        unsigned long   Ecol;
+        unsigned long   Mcc;
+        unsigned long   Latecol;
+        unsigned long   Colc;
+        unsigned long   Dc;
+        unsigned long   Sec;
+        unsigned long   Rlec;
+        unsigned long   Xonrxc;
+        unsigned long   Xontxc;
+        unsigned long   Xoffrxc;
+        unsigned long   Xofftxc;
+        unsigned long   Fcruc;
+        unsigned long   Prc64;
+        unsigned long   Prc127;
+        unsigned long   Prc255;
+        unsigned long   Prc511;
+        unsigned long   Prc1023;
+        unsigned long   Prc1522;
+        unsigned long   Gprc;
+        unsigned long   Bprc;
+        unsigned long   Mprc;
+        unsigned long   Gptc;
+        unsigned long   Gorcl;
+        unsigned long   Gorch;
+        unsigned long   Gotcl;
+        unsigned long   Gotch;
+        unsigned long   Rnbc;
+        unsigned long   Ruc;
+        unsigned long   Rfc;
+        unsigned long   Roc;
+        unsigned long   Rjc;
+        unsigned long   Torcl;
+        unsigned long   Torch;
+        unsigned long   Totcl;
+        unsigned long   Totch;
+        unsigned long   Tpr;
+        unsigned long   Tpt;
+        unsigned long   Ptc64;
+        unsigned long   Ptc127;
+        unsigned long   Ptc255;
+        unsigned long   Ptc511;
+        unsigned long   Ptc1023;
+        unsigned long   Ptc1522;
+        unsigned long   Mptc;
+        unsigned long   Bptc;
+        /* Statistics registers added in the 82543 */
+        unsigned long   Algnerrc;
+        unsigned long   Rxerrc;
+        unsigned long   Tuc;
+        unsigned long   Tncrs;
+        unsigned long   Cexterr;
+        unsigned long   Rutec;
+        unsigned long   Tsctc;
+        unsigned long   Tsctfc;
+
+};
+
+extern void em_adjust_tbi_accepted_stats(struct adapter * Adapter,
+                                            u32 FrameLength, u8 * MacAddress);
+
+#endif                                                  /* _EM_H_DEFINED_ */