3261 lines
93 KiB
C
3261 lines
93 KiB
C
/*-
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* Copyright (c) 1995, David Greenman
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* Copyright (c) 2001 Jonathan Lemon <jlemon@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Intel EtherExpress Pro/100B PCI Fast Ethernet driver
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*/
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#ifdef HAVE_KERNEL_OPTION_HEADERS
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#include "opt_device_polling.h"
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#endif
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <net/bpf.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_vlan_var.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/tcp.h>
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#include <netinet/udp.h>
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#include <machine/bus.h>
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#include <machine/in_cksum.h>
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#include <machine/resource.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h> /* for PCIM_CMD_xxx */
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/fxp/if_fxpreg.h>
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#include <dev/fxp/if_fxpvar.h>
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#include <dev/fxp/rcvbundl.h>
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MODULE_DEPEND(fxp, pci, 1, 1, 1);
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MODULE_DEPEND(fxp, ether, 1, 1, 1);
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MODULE_DEPEND(fxp, miibus, 1, 1, 1);
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#include "miibus_if.h"
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/*
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* NOTE! On !x86 we typically have an alignment constraint. The
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* card DMAs the packet immediately following the RFA. However,
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* the first thing in the packet is a 14-byte Ethernet header.
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* This means that the packet is misaligned. To compensate,
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* we actually offset the RFA 2 bytes into the cluster. This
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* alignes the packet after the Ethernet header at a 32-bit
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* boundary. HOWEVER! This means that the RFA is misaligned!
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*/
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#define RFA_ALIGNMENT_FUDGE 2
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/*
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* Set initial transmit threshold at 64 (512 bytes). This is
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* increased by 64 (512 bytes) at a time, to maximum of 192
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* (1536 bytes), if an underrun occurs.
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*/
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static int tx_threshold = 64;
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/*
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* The configuration byte map has several undefined fields which
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* must be one or must be zero. Set up a template for these bits.
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* The actual configuration is performed in fxp_init_body.
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*
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* See struct fxp_cb_config for the bit definitions.
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*/
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static const u_char fxp_cb_config_template[] = {
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0x0, 0x0, /* cb_status */
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0x0, 0x0, /* cb_command */
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0x0, 0x0, 0x0, 0x0, /* link_addr */
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0x0, /* 0 */
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0x0, /* 1 */
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0x0, /* 2 */
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0x0, /* 3 */
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0x0, /* 4 */
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0x0, /* 5 */
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0x32, /* 6 */
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0x0, /* 7 */
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0x0, /* 8 */
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0x0, /* 9 */
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0x6, /* 10 */
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0x0, /* 11 */
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0x0, /* 12 */
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0x0, /* 13 */
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0xf2, /* 14 */
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0x48, /* 15 */
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0x0, /* 16 */
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0x40, /* 17 */
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0xf0, /* 18 */
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0x0, /* 19 */
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0x3f, /* 20 */
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0x5, /* 21 */
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0x0, /* 22 */
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0x0, /* 23 */
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0x0, /* 24 */
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0x0, /* 25 */
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0x0, /* 26 */
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0x0, /* 27 */
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0x0, /* 28 */
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0x0, /* 29 */
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0x0, /* 30 */
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0x0 /* 31 */
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};
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/*
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* Claim various Intel PCI device identifiers for this driver. The
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* sub-vendor and sub-device field are extensively used to identify
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* particular variants, but we don't currently differentiate between
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* them.
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*/
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static const struct fxp_ident fxp_ident_table[] = {
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{ 0x8086, 0x1029, -1, 0, "Intel 82559 PCI/CardBus Pro/100" },
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{ 0x8086, 0x1030, -1, 0, "Intel 82559 Pro/100 Ethernet" },
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{ 0x8086, 0x1031, -1, 3, "Intel 82801CAM (ICH3) Pro/100 VE Ethernet" },
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{ 0x8086, 0x1032, -1, 3, "Intel 82801CAM (ICH3) Pro/100 VE Ethernet" },
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{ 0x8086, 0x1033, -1, 3, "Intel 82801CAM (ICH3) Pro/100 VM Ethernet" },
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{ 0x8086, 0x1034, -1, 3, "Intel 82801CAM (ICH3) Pro/100 VM Ethernet" },
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{ 0x8086, 0x1035, -1, 3, "Intel 82801CAM (ICH3) Pro/100 Ethernet" },
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{ 0x8086, 0x1036, -1, 3, "Intel 82801CAM (ICH3) Pro/100 Ethernet" },
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{ 0x8086, 0x1037, -1, 3, "Intel 82801CAM (ICH3) Pro/100 Ethernet" },
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{ 0x8086, 0x1038, -1, 3, "Intel 82801CAM (ICH3) Pro/100 VM Ethernet" },
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{ 0x8086, 0x1039, -1, 4, "Intel 82801DB (ICH4) Pro/100 VE Ethernet" },
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{ 0x8086, 0x103A, -1, 4, "Intel 82801DB (ICH4) Pro/100 Ethernet" },
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{ 0x8086, 0x103B, -1, 4, "Intel 82801DB (ICH4) Pro/100 VM Ethernet" },
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{ 0x8086, 0x103C, -1, 4, "Intel 82801DB (ICH4) Pro/100 Ethernet" },
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{ 0x8086, 0x103D, -1, 4, "Intel 82801DB (ICH4) Pro/100 VE Ethernet" },
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{ 0x8086, 0x103E, -1, 4, "Intel 82801DB (ICH4) Pro/100 VM Ethernet" },
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{ 0x8086, 0x1050, -1, 5, "Intel 82801BA (D865) Pro/100 VE Ethernet" },
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{ 0x8086, 0x1051, -1, 5, "Intel 82562ET (ICH5/ICH5R) Pro/100 VE Ethernet" },
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{ 0x8086, 0x1059, -1, 0, "Intel 82551QM Pro/100 M Mobile Connection" },
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{ 0x8086, 0x1064, -1, 6, "Intel 82562EZ (ICH6)" },
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{ 0x8086, 0x1065, -1, 6, "Intel 82562ET/EZ/GT/GZ PRO/100 VE Ethernet" },
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{ 0x8086, 0x1068, -1, 6, "Intel 82801FBM (ICH6-M) Pro/100 VE Ethernet" },
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{ 0x8086, 0x1069, -1, 6, "Intel 82562EM/EX/GX Pro/100 Ethernet" },
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{ 0x8086, 0x1091, -1, 7, "Intel 82562GX Pro/100 Ethernet" },
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{ 0x8086, 0x1092, -1, 7, "Intel Pro/100 VE Network Connection" },
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{ 0x8086, 0x1093, -1, 7, "Intel Pro/100 VM Network Connection" },
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{ 0x8086, 0x1094, -1, 7, "Intel Pro/100 946GZ (ICH7) Network Connection" },
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{ 0x8086, 0x1209, -1, 0, "Intel 82559ER Embedded 10/100 Ethernet" },
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{ 0x8086, 0x1229, 0x01, 0, "Intel 82557 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x02, 0, "Intel 82557 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x03, 0, "Intel 82557 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x04, 0, "Intel 82558 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x05, 0, "Intel 82558 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x06, 0, "Intel 82559 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x07, 0, "Intel 82559 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x08, 0, "Intel 82559 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x09, 0, "Intel 82559ER Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x0c, 0, "Intel 82550 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x0d, 0, "Intel 82550C Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x0e, 0, "Intel 82550 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x0f, 0, "Intel 82551 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, 0x10, 0, "Intel 82551 Pro/100 Ethernet" },
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{ 0x8086, 0x1229, -1, 0, "Intel 82557/8/9 Pro/100 Ethernet" },
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{ 0x8086, 0x2449, -1, 2, "Intel 82801BA/CAM (ICH2/3) Pro/100 Ethernet" },
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{ 0x8086, 0x27dc, -1, 7, "Intel 82801GB (ICH7) 10/100 Ethernet" },
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{ 0, 0, -1, 0, NULL },
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};
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#ifdef FXP_IP_CSUM_WAR
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#define FXP_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
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#else
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#define FXP_CSUM_FEATURES (CSUM_TCP | CSUM_UDP)
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#endif
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static int fxp_probe(device_t dev);
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static int fxp_attach(device_t dev);
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static int fxp_detach(device_t dev);
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static int fxp_shutdown(device_t dev);
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static int fxp_suspend(device_t dev);
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static int fxp_resume(device_t dev);
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static const struct fxp_ident *fxp_find_ident(device_t dev);
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static void fxp_intr(void *xsc);
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static void fxp_rxcsum(struct fxp_softc *sc, if_t ifp,
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struct mbuf *m, uint16_t status, int pos);
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static int fxp_intr_body(struct fxp_softc *sc, if_t ifp,
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uint8_t statack, int count);
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static void fxp_init(void *xsc);
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static void fxp_init_body(struct fxp_softc *sc, int);
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static void fxp_tick(void *xsc);
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static void fxp_start(if_t ifp);
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static void fxp_start_body(if_t ifp);
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static int fxp_encap(struct fxp_softc *sc, struct mbuf **m_head);
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static void fxp_txeof(struct fxp_softc *sc);
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static void fxp_stop(struct fxp_softc *sc);
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static void fxp_release(struct fxp_softc *sc);
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static int fxp_ioctl(if_t ifp, u_long command,
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caddr_t data);
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static void fxp_watchdog(struct fxp_softc *sc);
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static void fxp_add_rfabuf(struct fxp_softc *sc,
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struct fxp_rx *rxp);
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static void fxp_discard_rfabuf(struct fxp_softc *sc,
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struct fxp_rx *rxp);
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static int fxp_new_rfabuf(struct fxp_softc *sc,
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struct fxp_rx *rxp);
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static int fxp_mc_addrs(struct fxp_softc *sc);
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static void fxp_mc_setup(struct fxp_softc *sc);
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static uint16_t fxp_eeprom_getword(struct fxp_softc *sc, int offset,
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int autosize);
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static void fxp_eeprom_putword(struct fxp_softc *sc, int offset,
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uint16_t data);
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static void fxp_autosize_eeprom(struct fxp_softc *sc);
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static void fxp_load_eeprom(struct fxp_softc *sc);
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static void fxp_read_eeprom(struct fxp_softc *sc, u_short *data,
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int offset, int words);
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static void fxp_write_eeprom(struct fxp_softc *sc, u_short *data,
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int offset, int words);
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static int fxp_ifmedia_upd(if_t ifp);
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static void fxp_ifmedia_sts(if_t ifp,
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struct ifmediareq *ifmr);
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static int fxp_serial_ifmedia_upd(if_t ifp);
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static void fxp_serial_ifmedia_sts(if_t ifp,
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struct ifmediareq *ifmr);
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static int fxp_miibus_readreg(device_t dev, int phy, int reg);
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static int fxp_miibus_writereg(device_t dev, int phy, int reg,
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int value);
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static void fxp_miibus_statchg(device_t dev);
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static void fxp_load_ucode(struct fxp_softc *sc);
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static void fxp_update_stats(struct fxp_softc *sc);
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static void fxp_sysctl_node(struct fxp_softc *sc);
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static int sysctl_int_range(SYSCTL_HANDLER_ARGS,
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int low, int high);
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static int sysctl_hw_fxp_bundle_max(SYSCTL_HANDLER_ARGS);
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static int sysctl_hw_fxp_int_delay(SYSCTL_HANDLER_ARGS);
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static void fxp_scb_wait(struct fxp_softc *sc);
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static void fxp_scb_cmd(struct fxp_softc *sc, int cmd);
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static void fxp_dma_wait(struct fxp_softc *sc,
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volatile uint16_t *status, bus_dma_tag_t dmat,
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bus_dmamap_t map);
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static device_method_t fxp_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, fxp_probe),
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DEVMETHOD(device_attach, fxp_attach),
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DEVMETHOD(device_detach, fxp_detach),
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DEVMETHOD(device_shutdown, fxp_shutdown),
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DEVMETHOD(device_suspend, fxp_suspend),
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DEVMETHOD(device_resume, fxp_resume),
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/* MII interface */
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DEVMETHOD(miibus_readreg, fxp_miibus_readreg),
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DEVMETHOD(miibus_writereg, fxp_miibus_writereg),
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DEVMETHOD(miibus_statchg, fxp_miibus_statchg),
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DEVMETHOD_END
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};
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static driver_t fxp_driver = {
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"fxp",
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fxp_methods,
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sizeof(struct fxp_softc),
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};
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static devclass_t fxp_devclass;
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DRIVER_MODULE_ORDERED(fxp, pci, fxp_driver, fxp_devclass, NULL, NULL,
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SI_ORDER_ANY);
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DRIVER_MODULE(miibus, fxp, miibus_driver, miibus_devclass, NULL, NULL);
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static struct resource_spec fxp_res_spec_mem[] = {
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{ SYS_RES_MEMORY, FXP_PCI_MMBA, RF_ACTIVE },
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{ SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE },
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{ -1, 0 }
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};
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static struct resource_spec fxp_res_spec_io[] = {
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{ SYS_RES_IOPORT, FXP_PCI_IOBA, RF_ACTIVE },
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{ SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE },
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{ -1, 0 }
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};
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/*
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* Wait for the previous command to be accepted (but not necessarily
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* completed).
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*/
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static void
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fxp_scb_wait(struct fxp_softc *sc)
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{
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union {
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uint16_t w;
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uint8_t b[2];
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} flowctl;
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int i = 10000;
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while (CSR_READ_1(sc, FXP_CSR_SCB_COMMAND) && --i)
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DELAY(2);
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if (i == 0) {
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flowctl.b[0] = CSR_READ_1(sc, FXP_CSR_FC_THRESH);
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flowctl.b[1] = CSR_READ_1(sc, FXP_CSR_FC_STATUS);
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device_printf(sc->dev, "SCB timeout: 0x%x 0x%x 0x%x 0x%x\n",
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CSR_READ_1(sc, FXP_CSR_SCB_COMMAND),
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CSR_READ_1(sc, FXP_CSR_SCB_STATACK),
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CSR_READ_1(sc, FXP_CSR_SCB_RUSCUS), flowctl.w);
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}
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}
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static void
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fxp_scb_cmd(struct fxp_softc *sc, int cmd)
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{
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if (cmd == FXP_SCB_COMMAND_CU_RESUME && sc->cu_resume_bug) {
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CSR_WRITE_1(sc, FXP_CSR_SCB_COMMAND, FXP_CB_COMMAND_NOP);
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fxp_scb_wait(sc);
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}
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CSR_WRITE_1(sc, FXP_CSR_SCB_COMMAND, cmd);
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}
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static void
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fxp_dma_wait(struct fxp_softc *sc, volatile uint16_t *status,
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bus_dma_tag_t dmat, bus_dmamap_t map)
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{
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int i;
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for (i = 10000; i > 0; i--) {
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DELAY(2);
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bus_dmamap_sync(dmat, map,
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BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
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if ((le16toh(*status) & FXP_CB_STATUS_C) != 0)
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break;
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}
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if (i == 0)
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device_printf(sc->dev, "DMA timeout\n");
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}
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static const struct fxp_ident *
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fxp_find_ident(device_t dev)
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{
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uint16_t vendor;
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uint16_t device;
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uint8_t revid;
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const struct fxp_ident *ident;
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vendor = pci_get_vendor(dev);
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device = pci_get_device(dev);
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revid = pci_get_revid(dev);
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for (ident = fxp_ident_table; ident->name != NULL; ident++) {
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if (ident->vendor == vendor && ident->device == device &&
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(ident->revid == revid || ident->revid == -1)) {
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return (ident);
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}
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}
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return (NULL);
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}
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/*
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* Return identification string if this device is ours.
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*/
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static int
|
|
fxp_probe(device_t dev)
|
|
{
|
|
const struct fxp_ident *ident;
|
|
|
|
ident = fxp_find_ident(dev);
|
|
if (ident != NULL) {
|
|
device_set_desc(dev, ident->name);
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
return (ENXIO);
|
|
}
|
|
|
|
static void
|
|
fxp_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
uint32_t *addr;
|
|
|
|
if (error)
|
|
return;
|
|
|
|
KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
|
|
addr = arg;
|
|
*addr = segs->ds_addr;
|
|
}
|
|
|
|
static int
|
|
fxp_attach(device_t dev)
|
|
{
|
|
struct fxp_softc *sc;
|
|
struct fxp_cb_tx *tcbp;
|
|
struct fxp_tx *txp;
|
|
struct fxp_rx *rxp;
|
|
if_t ifp;
|
|
uint32_t val;
|
|
uint16_t data;
|
|
u_char eaddr[ETHER_ADDR_LEN];
|
|
int error, flags, i, pmc, prefer_iomap;
|
|
|
|
error = 0;
|
|
sc = device_get_softc(dev);
|
|
sc->dev = dev;
|
|
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
|
|
MTX_DEF);
|
|
callout_init_mtx(&sc->stat_ch, &sc->sc_mtx, 0);
|
|
ifmedia_init(&sc->sc_media, 0, fxp_serial_ifmedia_upd,
|
|
fxp_serial_ifmedia_sts);
|
|
|
|
ifp = sc->ifp = if_gethandle(IFT_ETHER);
|
|
if (ifp == (void *)NULL) {
|
|
device_printf(dev, "can not if_alloc()\n");
|
|
error = ENOSPC;
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Enable bus mastering.
|
|
*/
|
|
pci_enable_busmaster(dev);
|
|
|
|
/*
|
|
* Figure out which we should try first - memory mapping or i/o mapping?
|
|
* We default to memory mapping. Then we accept an override from the
|
|
* command line. Then we check to see which one is enabled.
|
|
*/
|
|
prefer_iomap = 0;
|
|
resource_int_value(device_get_name(dev), device_get_unit(dev),
|
|
"prefer_iomap", &prefer_iomap);
|
|
if (prefer_iomap)
|
|
sc->fxp_spec = fxp_res_spec_io;
|
|
else
|
|
sc->fxp_spec = fxp_res_spec_mem;
|
|
|
|
error = bus_alloc_resources(dev, sc->fxp_spec, sc->fxp_res);
|
|
if (error) {
|
|
if (sc->fxp_spec == fxp_res_spec_mem)
|
|
sc->fxp_spec = fxp_res_spec_io;
|
|
else
|
|
sc->fxp_spec = fxp_res_spec_mem;
|
|
error = bus_alloc_resources(dev, sc->fxp_spec, sc->fxp_res);
|
|
}
|
|
if (error) {
|
|
device_printf(dev, "could not allocate resources\n");
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
if (bootverbose) {
|
|
device_printf(dev, "using %s space register mapping\n",
|
|
sc->fxp_spec == fxp_res_spec_mem ? "memory" : "I/O");
|
|
}
|
|
|
|
/*
|
|
* Put CU/RU idle state and prepare full reset.
|
|
*/
|
|
CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SELECTIVE_RESET);
|
|
DELAY(10);
|
|
/* Full reset and disable interrupts. */
|
|
CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SOFTWARE_RESET);
|
|
DELAY(10);
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, FXP_SCB_INTR_DISABLE);
|
|
|
|
/*
|
|
* Find out how large of an SEEPROM we have.
|
|
*/
|
|
fxp_autosize_eeprom(sc);
|
|
fxp_load_eeprom(sc);
|
|
|
|
/*
|
|
* Find out the chip revision; lump all 82557 revs together.
|
|
*/
|
|
sc->ident = fxp_find_ident(dev);
|
|
if (sc->ident->ich > 0) {
|
|
/* Assume ICH controllers are 82559. */
|
|
sc->revision = FXP_REV_82559_A0;
|
|
} else {
|
|
data = sc->eeprom[FXP_EEPROM_MAP_CNTR];
|
|
if ((data >> 8) == 1)
|
|
sc->revision = FXP_REV_82557;
|
|
else
|
|
sc->revision = pci_get_revid(dev);
|
|
}
|
|
|
|
/*
|
|
* Check availability of WOL. 82559ER does not support WOL.
|
|
*/
|
|
if (sc->revision >= FXP_REV_82558_A4 &&
|
|
sc->revision != FXP_REV_82559S_A) {
|
|
data = sc->eeprom[FXP_EEPROM_MAP_ID];
|
|
if ((data & 0x20) != 0 &&
|
|
pci_find_cap(sc->dev, PCIY_PMG, &pmc) == 0)
|
|
sc->flags |= FXP_FLAG_WOLCAP;
|
|
}
|
|
|
|
if (sc->revision == FXP_REV_82550_C) {
|
|
/*
|
|
* 82550C with server extension requires microcode to
|
|
* receive fragmented UDP datagrams. However if the
|
|
* microcode is used for client-only featured 82550C
|
|
* it locks up controller.
|
|
*/
|
|
data = sc->eeprom[FXP_EEPROM_MAP_COMPAT];
|
|
if ((data & 0x0400) == 0)
|
|
sc->flags |= FXP_FLAG_NO_UCODE;
|
|
}
|
|
|
|
/* Receiver lock-up workaround detection. */
|
|
if (sc->revision < FXP_REV_82558_A4) {
|
|
data = sc->eeprom[FXP_EEPROM_MAP_COMPAT];
|
|
if ((data & 0x03) != 0x03) {
|
|
sc->flags |= FXP_FLAG_RXBUG;
|
|
device_printf(dev, "Enabling Rx lock-up workaround\n");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Determine whether we must use the 503 serial interface.
|
|
*/
|
|
data = sc->eeprom[FXP_EEPROM_MAP_PRI_PHY];
|
|
if (sc->revision == FXP_REV_82557 && (data & FXP_PHY_DEVICE_MASK) != 0
|
|
&& (data & FXP_PHY_SERIAL_ONLY))
|
|
sc->flags |= FXP_FLAG_SERIAL_MEDIA;
|
|
|
|
fxp_sysctl_node(sc);
|
|
/*
|
|
* Enable workarounds for certain chip revision deficiencies.
|
|
*
|
|
* Systems based on the ICH2/ICH2-M chip from Intel, and possibly
|
|
* some systems based a normal 82559 design, have a defect where
|
|
* the chip can cause a PCI protocol violation if it receives
|
|
* a CU_RESUME command when it is entering the IDLE state. The
|
|
* workaround is to disable Dynamic Standby Mode, so the chip never
|
|
* deasserts CLKRUN#, and always remains in an active state.
|
|
*
|
|
* See Intel 82801BA/82801BAM Specification Update, Errata #30.
|
|
*/
|
|
if ((sc->ident->ich >= 2 && sc->ident->ich <= 3) ||
|
|
(sc->ident->ich == 0 && sc->revision >= FXP_REV_82559_A0)) {
|
|
data = sc->eeprom[FXP_EEPROM_MAP_ID];
|
|
if (data & 0x02) { /* STB enable */
|
|
uint16_t cksum;
|
|
int i;
|
|
|
|
device_printf(dev,
|
|
"Disabling dynamic standby mode in EEPROM\n");
|
|
data &= ~0x02;
|
|
sc->eeprom[FXP_EEPROM_MAP_ID] = data;
|
|
fxp_write_eeprom(sc, &data, FXP_EEPROM_MAP_ID, 1);
|
|
device_printf(dev, "New EEPROM ID: 0x%x\n", data);
|
|
cksum = 0;
|
|
for (i = 0; i < (1 << sc->eeprom_size) - 1; i++)
|
|
cksum += sc->eeprom[i];
|
|
i = (1 << sc->eeprom_size) - 1;
|
|
cksum = 0xBABA - cksum;
|
|
fxp_write_eeprom(sc, &cksum, i, 1);
|
|
device_printf(dev,
|
|
"EEPROM checksum @ 0x%x: 0x%x -> 0x%x\n",
|
|
i, sc->eeprom[i], cksum);
|
|
sc->eeprom[i] = cksum;
|
|
/*
|
|
* If the user elects to continue, try the software
|
|
* workaround, as it is better than nothing.
|
|
*/
|
|
sc->flags |= FXP_FLAG_CU_RESUME_BUG;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we are not a 82557 chip, we can enable extended features.
|
|
*/
|
|
if (sc->revision != FXP_REV_82557) {
|
|
/*
|
|
* If MWI is enabled in the PCI configuration, and there
|
|
* is a valid cacheline size (8 or 16 dwords), then tell
|
|
* the board to turn on MWI.
|
|
*/
|
|
val = pci_read_config(dev, PCIR_COMMAND, 2);
|
|
if (val & PCIM_CMD_MWRICEN &&
|
|
pci_read_config(dev, PCIR_CACHELNSZ, 1) != 0)
|
|
sc->flags |= FXP_FLAG_MWI_ENABLE;
|
|
|
|
/* turn on the extended TxCB feature */
|
|
sc->flags |= FXP_FLAG_EXT_TXCB;
|
|
|
|
/* enable reception of long frames for VLAN */
|
|
sc->flags |= FXP_FLAG_LONG_PKT_EN;
|
|
} else {
|
|
/* a hack to get long VLAN frames on a 82557 */
|
|
sc->flags |= FXP_FLAG_SAVE_BAD;
|
|
}
|
|
|
|
/* For 82559 or later chips, Rx checksum offload is supported. */
|
|
if (sc->revision >= FXP_REV_82559_A0) {
|
|
/* 82559ER does not support Rx checksum offloading. */
|
|
if (sc->ident->device != 0x1209)
|
|
sc->flags |= FXP_FLAG_82559_RXCSUM;
|
|
}
|
|
/*
|
|
* Enable use of extended RFDs and TCBs for 82550
|
|
* and later chips. Note: we need extended TXCB support
|
|
* too, but that's already enabled by the code above.
|
|
* Be careful to do this only on the right devices.
|
|
*/
|
|
if (sc->revision == FXP_REV_82550 || sc->revision == FXP_REV_82550_C ||
|
|
sc->revision == FXP_REV_82551_E || sc->revision == FXP_REV_82551_F
|
|
|| sc->revision == FXP_REV_82551_10) {
|
|
sc->rfa_size = sizeof (struct fxp_rfa);
|
|
sc->tx_cmd = FXP_CB_COMMAND_IPCBXMIT;
|
|
sc->flags |= FXP_FLAG_EXT_RFA;
|
|
/* Use extended RFA instead of 82559 checksum mode. */
|
|
sc->flags &= ~FXP_FLAG_82559_RXCSUM;
|
|
} else {
|
|
sc->rfa_size = sizeof (struct fxp_rfa) - FXP_RFAX_LEN;
|
|
sc->tx_cmd = FXP_CB_COMMAND_XMIT;
|
|
}
|
|
|
|
/*
|
|
* Allocate DMA tags and DMA safe memory.
|
|
*/
|
|
sc->maxtxseg = FXP_NTXSEG;
|
|
sc->maxsegsize = MCLBYTES;
|
|
if (sc->flags & FXP_FLAG_EXT_RFA) {
|
|
sc->maxtxseg--;
|
|
sc->maxsegsize = FXP_TSO_SEGSIZE;
|
|
}
|
|
error = bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
sc->maxsegsize * sc->maxtxseg + sizeof(struct ether_vlan_header),
|
|
sc->maxtxseg, sc->maxsegsize, 0,
|
|
busdma_lock_mutex, &Giant, &sc->fxp_txmtag);
|
|
if (error) {
|
|
device_printf(dev, "could not create TX DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
MCLBYTES, 1, MCLBYTES, 0,
|
|
busdma_lock_mutex, &Giant, &sc->fxp_rxmtag);
|
|
if (error) {
|
|
device_printf(dev, "could not create RX DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
sizeof(struct fxp_stats), 1, sizeof(struct fxp_stats), 0,
|
|
busdma_lock_mutex, &Giant, &sc->fxp_stag);
|
|
if (error) {
|
|
device_printf(dev, "could not create stats DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(sc->fxp_stag, (void **)&sc->fxp_stats,
|
|
BUS_DMA_NOWAIT | BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc->fxp_smap);
|
|
if (error) {
|
|
device_printf(dev, "could not allocate stats DMA memory\n");
|
|
goto fail;
|
|
}
|
|
error = bus_dmamap_load(sc->fxp_stag, sc->fxp_smap, sc->fxp_stats,
|
|
sizeof(struct fxp_stats), fxp_dma_map_addr, &sc->stats_addr,
|
|
BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
device_printf(dev, "could not load the stats DMA buffer\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
FXP_TXCB_SZ, 1, FXP_TXCB_SZ, 0,
|
|
busdma_lock_mutex, &Giant, &sc->cbl_tag);
|
|
if (error) {
|
|
device_printf(dev, "could not create TxCB DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(sc->cbl_tag, (void **)&sc->fxp_desc.cbl_list,
|
|
BUS_DMA_NOWAIT | BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc->cbl_map);
|
|
if (error) {
|
|
device_printf(dev, "could not allocate TxCB DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->cbl_tag, sc->cbl_map,
|
|
sc->fxp_desc.cbl_list, FXP_TXCB_SZ, fxp_dma_map_addr,
|
|
&sc->fxp_desc.cbl_addr, BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
device_printf(dev, "could not load TxCB DMA buffer\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
sizeof(struct fxp_cb_mcs), 1, sizeof(struct fxp_cb_mcs), 0,
|
|
busdma_lock_mutex, &Giant, &sc->mcs_tag);
|
|
if (error) {
|
|
device_printf(dev,
|
|
"could not create multicast setup DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(sc->mcs_tag, (void **)&sc->mcsp,
|
|
BUS_DMA_NOWAIT | BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc->mcs_map);
|
|
if (error) {
|
|
device_printf(dev,
|
|
"could not allocate multicast setup DMA memory\n");
|
|
goto fail;
|
|
}
|
|
error = bus_dmamap_load(sc->mcs_tag, sc->mcs_map, sc->mcsp,
|
|
sizeof(struct fxp_cb_mcs), fxp_dma_map_addr, &sc->mcs_addr,
|
|
BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
device_printf(dev,
|
|
"can't load the multicast setup DMA buffer\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Pre-allocate the TX DMA maps and setup the pointers to
|
|
* the TX command blocks.
|
|
*/
|
|
txp = sc->fxp_desc.tx_list;
|
|
tcbp = sc->fxp_desc.cbl_list;
|
|
for (i = 0; i < FXP_NTXCB; i++) {
|
|
txp[i].tx_cb = tcbp + i;
|
|
error = bus_dmamap_create(sc->fxp_txmtag, 0, &txp[i].tx_map);
|
|
if (error) {
|
|
device_printf(dev, "can't create DMA map for TX\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
error = bus_dmamap_create(sc->fxp_rxmtag, 0, &sc->spare_map);
|
|
if (error) {
|
|
device_printf(dev, "can't create spare DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Pre-allocate our receive buffers.
|
|
*/
|
|
sc->fxp_desc.rx_head = sc->fxp_desc.rx_tail = NULL;
|
|
for (i = 0; i < FXP_NRFABUFS; i++) {
|
|
rxp = &sc->fxp_desc.rx_list[i];
|
|
error = bus_dmamap_create(sc->fxp_rxmtag, 0, &rxp->rx_map);
|
|
if (error) {
|
|
device_printf(dev, "can't create DMA map for RX\n");
|
|
goto fail;
|
|
}
|
|
if (fxp_new_rfabuf(sc, rxp) != 0) {
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
fxp_add_rfabuf(sc, rxp);
|
|
}
|
|
|
|
/*
|
|
* Read MAC address.
|
|
*/
|
|
eaddr[0] = sc->eeprom[FXP_EEPROM_MAP_IA0] & 0xff;
|
|
eaddr[1] = sc->eeprom[FXP_EEPROM_MAP_IA0] >> 8;
|
|
eaddr[2] = sc->eeprom[FXP_EEPROM_MAP_IA1] & 0xff;
|
|
eaddr[3] = sc->eeprom[FXP_EEPROM_MAP_IA1] >> 8;
|
|
eaddr[4] = sc->eeprom[FXP_EEPROM_MAP_IA2] & 0xff;
|
|
eaddr[5] = sc->eeprom[FXP_EEPROM_MAP_IA2] >> 8;
|
|
if (bootverbose) {
|
|
device_printf(dev, "PCI IDs: %04x %04x %04x %04x %04x\n",
|
|
pci_get_vendor(dev), pci_get_device(dev),
|
|
pci_get_subvendor(dev), pci_get_subdevice(dev),
|
|
pci_get_revid(dev));
|
|
device_printf(dev, "Dynamic Standby mode is %s\n",
|
|
sc->eeprom[FXP_EEPROM_MAP_ID] & 0x02 ? "enabled" :
|
|
"disabled");
|
|
}
|
|
|
|
/*
|
|
* If this is only a 10Mbps device, then there is no MII, and
|
|
* the PHY will use a serial interface instead.
|
|
*
|
|
* The Seeq 80c24 AutoDUPLEX(tm) Ethernet Interface Adapter
|
|
* doesn't have a programming interface of any sort. The
|
|
* media is sensed automatically based on how the link partner
|
|
* is configured. This is, in essence, manual configuration.
|
|
*/
|
|
if (sc->flags & FXP_FLAG_SERIAL_MEDIA) {
|
|
ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL);
|
|
ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL);
|
|
} else {
|
|
/*
|
|
* i82557 wedge when isolating all of their PHYs.
|
|
*/
|
|
flags = MIIF_NOISOLATE;
|
|
if (sc->revision >= FXP_REV_82558_A4)
|
|
flags |= MIIF_DOPAUSE;
|
|
error = mii_attach(dev, &sc->miibus, ifp,
|
|
(ifm_change_cb_t)fxp_ifmedia_upd,
|
|
(ifm_stat_cb_t)fxp_ifmedia_sts, BMSR_DEFCAPMASK,
|
|
MII_PHY_ANY, MII_OFFSET_ANY, flags);
|
|
if (error != 0) {
|
|
device_printf(dev, "attaching PHYs failed\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
|
|
if_setdev(ifp, dev);
|
|
if_setinitfn(ifp, fxp_init);
|
|
if_setsoftc(ifp, sc);
|
|
if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
|
|
if_setioctlfn(ifp, fxp_ioctl);
|
|
if_setstartfn(ifp, fxp_start);
|
|
|
|
if_setcapabilities(ifp, 0);
|
|
if_setcapenable(ifp, 0);
|
|
|
|
/* Enable checksum offload/TSO for 82550 or better chips */
|
|
if (sc->flags & FXP_FLAG_EXT_RFA) {
|
|
if_sethwassist(ifp, FXP_CSUM_FEATURES | CSUM_TSO);
|
|
if_setcapabilitiesbit(ifp, IFCAP_HWCSUM | IFCAP_TSO4, 0);
|
|
if_setcapenablebit(ifp, IFCAP_HWCSUM | IFCAP_TSO4, 0);
|
|
}
|
|
|
|
if (sc->flags & FXP_FLAG_82559_RXCSUM) {
|
|
if_setcapabilitiesbit(ifp, IFCAP_RXCSUM, 0);
|
|
if_setcapenablebit(ifp, IFCAP_RXCSUM, 0);
|
|
}
|
|
|
|
if (sc->flags & FXP_FLAG_WOLCAP) {
|
|
if_setcapabilitiesbit(ifp, IFCAP_WOL_MAGIC, 0);
|
|
if_setcapenablebit(ifp, IFCAP_WOL_MAGIC, 0);
|
|
}
|
|
|
|
#ifdef DEVICE_POLLING
|
|
/* Inform the world we support polling. */
|
|
if_setcapabilitiesbit(ifp, IFCAP_POLLING, 0);
|
|
#endif
|
|
|
|
/*
|
|
* Attach the interface.
|
|
*/
|
|
ether_ifattach(ifp, eaddr);
|
|
|
|
/*
|
|
* Tell the upper layer(s) we support long frames.
|
|
* Must appear after the call to ether_ifattach() because
|
|
* ether_ifattach() sets ifi_hdrlen to the default value.
|
|
*/
|
|
if_setifheaderlen(ifp, sizeof(struct ether_vlan_header));
|
|
if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0);
|
|
if_setcapenablebit(ifp, IFCAP_VLAN_MTU, 0);
|
|
if ((sc->flags & FXP_FLAG_EXT_RFA) != 0) {
|
|
if_setcapabilitiesbit(ifp, IFCAP_VLAN_HWTAGGING |
|
|
IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTSO, 0);
|
|
if_setcapenablebit(ifp, IFCAP_VLAN_HWTAGGING |
|
|
IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTSO, 0);
|
|
}
|
|
|
|
/*
|
|
* Let the system queue as many packets as we have available
|
|
* TX descriptors.
|
|
*/
|
|
if_setsendqlen(ifp, FXP_NTXCB - 1);
|
|
if_setsendqready(ifp);
|
|
|
|
/*
|
|
* Hook our interrupt after all initialization is complete.
|
|
*/
|
|
error = bus_setup_intr(dev, sc->fxp_res[1], INTR_TYPE_NET | INTR_MPSAFE,
|
|
NULL, fxp_intr, sc, &sc->ih);
|
|
if (error) {
|
|
device_printf(dev, "could not setup irq\n");
|
|
ether_ifdetach(sc->ifp);
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Configure hardware to reject magic frames otherwise
|
|
* system will hang on recipt of magic frames.
|
|
*/
|
|
if ((sc->flags & FXP_FLAG_WOLCAP) != 0) {
|
|
FXP_LOCK(sc);
|
|
/* Clear wakeup events. */
|
|
CSR_WRITE_1(sc, FXP_CSR_PMDR, CSR_READ_1(sc, FXP_CSR_PMDR));
|
|
fxp_init_body(sc, 0);
|
|
fxp_stop(sc);
|
|
FXP_UNLOCK(sc);
|
|
}
|
|
|
|
fail:
|
|
if (error)
|
|
fxp_release(sc);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Release all resources. The softc lock should not be held and the
|
|
* interrupt should already be torn down.
|
|
*/
|
|
static void
|
|
fxp_release(struct fxp_softc *sc)
|
|
{
|
|
struct fxp_rx *rxp;
|
|
struct fxp_tx *txp;
|
|
int i;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_NOTOWNED);
|
|
KASSERT(sc->ih == NULL,
|
|
("fxp_release() called with intr handle still active"));
|
|
if (sc->miibus)
|
|
device_delete_child(sc->dev, sc->miibus);
|
|
bus_generic_detach(sc->dev);
|
|
ifmedia_removeall(&sc->sc_media);
|
|
if (sc->fxp_desc.cbl_list) {
|
|
bus_dmamap_unload(sc->cbl_tag, sc->cbl_map);
|
|
bus_dmamem_free(sc->cbl_tag, sc->fxp_desc.cbl_list,
|
|
sc->cbl_map);
|
|
}
|
|
if (sc->fxp_stats) {
|
|
bus_dmamap_unload(sc->fxp_stag, sc->fxp_smap);
|
|
bus_dmamem_free(sc->fxp_stag, sc->fxp_stats, sc->fxp_smap);
|
|
}
|
|
if (sc->mcsp) {
|
|
bus_dmamap_unload(sc->mcs_tag, sc->mcs_map);
|
|
bus_dmamem_free(sc->mcs_tag, sc->mcsp, sc->mcs_map);
|
|
}
|
|
bus_release_resources(sc->dev, sc->fxp_spec, sc->fxp_res);
|
|
if (sc->fxp_rxmtag) {
|
|
for (i = 0; i < FXP_NRFABUFS; i++) {
|
|
rxp = &sc->fxp_desc.rx_list[i];
|
|
if (rxp->rx_mbuf != NULL) {
|
|
bus_dmamap_sync(sc->fxp_rxmtag, rxp->rx_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->fxp_rxmtag, rxp->rx_map);
|
|
m_freem(rxp->rx_mbuf);
|
|
}
|
|
bus_dmamap_destroy(sc->fxp_rxmtag, rxp->rx_map);
|
|
}
|
|
bus_dmamap_destroy(sc->fxp_rxmtag, sc->spare_map);
|
|
bus_dma_tag_destroy(sc->fxp_rxmtag);
|
|
}
|
|
if (sc->fxp_txmtag) {
|
|
for (i = 0; i < FXP_NTXCB; i++) {
|
|
txp = &sc->fxp_desc.tx_list[i];
|
|
if (txp->tx_mbuf != NULL) {
|
|
bus_dmamap_sync(sc->fxp_txmtag, txp->tx_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->fxp_txmtag, txp->tx_map);
|
|
m_freem(txp->tx_mbuf);
|
|
}
|
|
bus_dmamap_destroy(sc->fxp_txmtag, txp->tx_map);
|
|
}
|
|
bus_dma_tag_destroy(sc->fxp_txmtag);
|
|
}
|
|
if (sc->fxp_stag)
|
|
bus_dma_tag_destroy(sc->fxp_stag);
|
|
if (sc->cbl_tag)
|
|
bus_dma_tag_destroy(sc->cbl_tag);
|
|
if (sc->mcs_tag)
|
|
bus_dma_tag_destroy(sc->mcs_tag);
|
|
if (sc->ifp)
|
|
if_free(sc->ifp);
|
|
|
|
mtx_destroy(&sc->sc_mtx);
|
|
}
|
|
|
|
/*
|
|
* Detach interface.
|
|
*/
|
|
static int
|
|
fxp_detach(device_t dev)
|
|
{
|
|
struct fxp_softc *sc = device_get_softc(dev);
|
|
|
|
#ifdef DEVICE_POLLING
|
|
if (if_getcapenable(sc->ifp) & IFCAP_POLLING)
|
|
ether_poll_deregister(sc->ifp);
|
|
#endif
|
|
|
|
FXP_LOCK(sc);
|
|
/*
|
|
* Stop DMA and drop transmit queue, but disable interrupts first.
|
|
*/
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, FXP_SCB_INTR_DISABLE);
|
|
fxp_stop(sc);
|
|
FXP_UNLOCK(sc);
|
|
callout_drain(&sc->stat_ch);
|
|
|
|
/*
|
|
* Close down routes etc.
|
|
*/
|
|
ether_ifdetach(sc->ifp);
|
|
|
|
/*
|
|
* Unhook interrupt before dropping lock. This is to prevent
|
|
* races with fxp_intr().
|
|
*/
|
|
bus_teardown_intr(sc->dev, sc->fxp_res[1], sc->ih);
|
|
sc->ih = NULL;
|
|
|
|
/* Release our allocated resources. */
|
|
fxp_release(sc);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Device shutdown routine. Called at system shutdown after sync. The
|
|
* main purpose of this routine is to shut off receiver DMA so that
|
|
* kernel memory doesn't get clobbered during warmboot.
|
|
*/
|
|
static int
|
|
fxp_shutdown(device_t dev)
|
|
{
|
|
|
|
/*
|
|
* Make sure that DMA is disabled prior to reboot. Not doing
|
|
* do could allow DMA to corrupt kernel memory during the
|
|
* reboot before the driver initializes.
|
|
*/
|
|
return (fxp_suspend(dev));
|
|
}
|
|
|
|
/*
|
|
* Device suspend routine. Stop the interface and save some PCI
|
|
* settings in case the BIOS doesn't restore them properly on
|
|
* resume.
|
|
*/
|
|
static int
|
|
fxp_suspend(device_t dev)
|
|
{
|
|
struct fxp_softc *sc = device_get_softc(dev);
|
|
if_t ifp;
|
|
int pmc;
|
|
uint16_t pmstat;
|
|
|
|
FXP_LOCK(sc);
|
|
|
|
ifp = sc->ifp;
|
|
if (pci_find_cap(sc->dev, PCIY_PMG, &pmc) == 0) {
|
|
pmstat = pci_read_config(sc->dev, pmc + PCIR_POWER_STATUS, 2);
|
|
pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE);
|
|
if ((if_getcapenable(ifp) & IFCAP_WOL_MAGIC) != 0) {
|
|
/* Request PME. */
|
|
pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE;
|
|
sc->flags |= FXP_FLAG_WOL;
|
|
/* Reconfigure hardware to accept magic frames. */
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
|
|
fxp_init_body(sc, 0);
|
|
}
|
|
pci_write_config(sc->dev, pmc + PCIR_POWER_STATUS, pmstat, 2);
|
|
}
|
|
fxp_stop(sc);
|
|
|
|
sc->suspended = 1;
|
|
|
|
FXP_UNLOCK(sc);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Device resume routine. re-enable busmastering, and restart the interface if
|
|
* appropriate.
|
|
*/
|
|
static int
|
|
fxp_resume(device_t dev)
|
|
{
|
|
struct fxp_softc *sc = device_get_softc(dev);
|
|
if_t ifp = sc->ifp;
|
|
int pmc;
|
|
uint16_t pmstat;
|
|
|
|
FXP_LOCK(sc);
|
|
|
|
if (pci_find_cap(sc->dev, PCIY_PMG, &pmc) == 0) {
|
|
sc->flags &= ~FXP_FLAG_WOL;
|
|
pmstat = pci_read_config(sc->dev, pmc + PCIR_POWER_STATUS, 2);
|
|
/* Disable PME and clear PME status. */
|
|
pmstat &= ~PCIM_PSTAT_PMEENABLE;
|
|
pci_write_config(sc->dev, pmc + PCIR_POWER_STATUS, pmstat, 2);
|
|
if ((sc->flags & FXP_FLAG_WOLCAP) != 0)
|
|
CSR_WRITE_1(sc, FXP_CSR_PMDR,
|
|
CSR_READ_1(sc, FXP_CSR_PMDR));
|
|
}
|
|
|
|
CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SELECTIVE_RESET);
|
|
DELAY(10);
|
|
|
|
/* reinitialize interface if necessary */
|
|
if (if_getflags(ifp) & IFF_UP)
|
|
fxp_init_body(sc, 1);
|
|
|
|
sc->suspended = 0;
|
|
|
|
FXP_UNLOCK(sc);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
fxp_eeprom_shiftin(struct fxp_softc *sc, int data, int length)
|
|
{
|
|
uint16_t reg;
|
|
int x;
|
|
|
|
/*
|
|
* Shift in data.
|
|
*/
|
|
for (x = 1 << (length - 1); x; x >>= 1) {
|
|
if (data & x)
|
|
reg = FXP_EEPROM_EECS | FXP_EEPROM_EEDI;
|
|
else
|
|
reg = FXP_EEPROM_EECS;
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
|
|
DELAY(1);
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg | FXP_EEPROM_EESK);
|
|
DELAY(1);
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
|
|
DELAY(1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Read from the serial EEPROM. Basically, you manually shift in
|
|
* the read opcode (one bit at a time) and then shift in the address,
|
|
* and then you shift out the data (all of this one bit at a time).
|
|
* The word size is 16 bits, so you have to provide the address for
|
|
* every 16 bits of data.
|
|
*/
|
|
static uint16_t
|
|
fxp_eeprom_getword(struct fxp_softc *sc, int offset, int autosize)
|
|
{
|
|
uint16_t reg, data;
|
|
int x;
|
|
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS);
|
|
/*
|
|
* Shift in read opcode.
|
|
*/
|
|
fxp_eeprom_shiftin(sc, FXP_EEPROM_OPC_READ, 3);
|
|
/*
|
|
* Shift in address.
|
|
*/
|
|
data = 0;
|
|
for (x = 1 << (sc->eeprom_size - 1); x; x >>= 1) {
|
|
if (offset & x)
|
|
reg = FXP_EEPROM_EECS | FXP_EEPROM_EEDI;
|
|
else
|
|
reg = FXP_EEPROM_EECS;
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
|
|
DELAY(1);
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg | FXP_EEPROM_EESK);
|
|
DELAY(1);
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
|
|
DELAY(1);
|
|
reg = CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) & FXP_EEPROM_EEDO;
|
|
data++;
|
|
if (autosize && reg == 0) {
|
|
sc->eeprom_size = data;
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
* Shift out data.
|
|
*/
|
|
data = 0;
|
|
reg = FXP_EEPROM_EECS;
|
|
for (x = 1 << 15; x; x >>= 1) {
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg | FXP_EEPROM_EESK);
|
|
DELAY(1);
|
|
if (CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) & FXP_EEPROM_EEDO)
|
|
data |= x;
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
|
|
DELAY(1);
|
|
}
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0);
|
|
DELAY(1);
|
|
|
|
return (data);
|
|
}
|
|
|
|
static void
|
|
fxp_eeprom_putword(struct fxp_softc *sc, int offset, uint16_t data)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* Erase/write enable.
|
|
*/
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS);
|
|
fxp_eeprom_shiftin(sc, 0x4, 3);
|
|
fxp_eeprom_shiftin(sc, 0x03 << (sc->eeprom_size - 2), sc->eeprom_size);
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0);
|
|
DELAY(1);
|
|
/*
|
|
* Shift in write opcode, address, data.
|
|
*/
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS);
|
|
fxp_eeprom_shiftin(sc, FXP_EEPROM_OPC_WRITE, 3);
|
|
fxp_eeprom_shiftin(sc, offset, sc->eeprom_size);
|
|
fxp_eeprom_shiftin(sc, data, 16);
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0);
|
|
DELAY(1);
|
|
/*
|
|
* Wait for EEPROM to finish up.
|
|
*/
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS);
|
|
DELAY(1);
|
|
for (i = 0; i < 1000; i++) {
|
|
if (CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) & FXP_EEPROM_EEDO)
|
|
break;
|
|
DELAY(50);
|
|
}
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0);
|
|
DELAY(1);
|
|
/*
|
|
* Erase/write disable.
|
|
*/
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS);
|
|
fxp_eeprom_shiftin(sc, 0x4, 3);
|
|
fxp_eeprom_shiftin(sc, 0, sc->eeprom_size);
|
|
CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0);
|
|
DELAY(1);
|
|
}
|
|
|
|
/*
|
|
* From NetBSD:
|
|
*
|
|
* Figure out EEPROM size.
|
|
*
|
|
* 559's can have either 64-word or 256-word EEPROMs, the 558
|
|
* datasheet only talks about 64-word EEPROMs, and the 557 datasheet
|
|
* talks about the existence of 16 to 256 word EEPROMs.
|
|
*
|
|
* The only known sizes are 64 and 256, where the 256 version is used
|
|
* by CardBus cards to store CIS information.
|
|
*
|
|
* The address is shifted in msb-to-lsb, and after the last
|
|
* address-bit the EEPROM is supposed to output a `dummy zero' bit,
|
|
* after which follows the actual data. We try to detect this zero, by
|
|
* probing the data-out bit in the EEPROM control register just after
|
|
* having shifted in a bit. If the bit is zero, we assume we've
|
|
* shifted enough address bits. The data-out should be tri-state,
|
|
* before this, which should translate to a logical one.
|
|
*/
|
|
static void
|
|
fxp_autosize_eeprom(struct fxp_softc *sc)
|
|
{
|
|
|
|
/* guess maximum size of 256 words */
|
|
sc->eeprom_size = 8;
|
|
|
|
/* autosize */
|
|
(void) fxp_eeprom_getword(sc, 0, 1);
|
|
}
|
|
|
|
static void
|
|
fxp_read_eeprom(struct fxp_softc *sc, u_short *data, int offset, int words)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < words; i++)
|
|
data[i] = fxp_eeprom_getword(sc, offset + i, 0);
|
|
}
|
|
|
|
static void
|
|
fxp_write_eeprom(struct fxp_softc *sc, u_short *data, int offset, int words)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < words; i++)
|
|
fxp_eeprom_putword(sc, offset + i, data[i]);
|
|
}
|
|
|
|
static void
|
|
fxp_load_eeprom(struct fxp_softc *sc)
|
|
{
|
|
int i;
|
|
uint16_t cksum;
|
|
|
|
fxp_read_eeprom(sc, sc->eeprom, 0, 1 << sc->eeprom_size);
|
|
cksum = 0;
|
|
for (i = 0; i < (1 << sc->eeprom_size) - 1; i++)
|
|
cksum += sc->eeprom[i];
|
|
cksum = 0xBABA - cksum;
|
|
if (cksum != sc->eeprom[(1 << sc->eeprom_size) - 1])
|
|
device_printf(sc->dev,
|
|
"EEPROM checksum mismatch! (0x%04x -> 0x%04x)\n",
|
|
cksum, sc->eeprom[(1 << sc->eeprom_size) - 1]);
|
|
}
|
|
|
|
/*
|
|
* Grab the softc lock and call the real fxp_start_body() routine
|
|
*/
|
|
static void
|
|
fxp_start(if_t ifp)
|
|
{
|
|
struct fxp_softc *sc = if_getsoftc(ifp);
|
|
|
|
FXP_LOCK(sc);
|
|
fxp_start_body(ifp);
|
|
FXP_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Start packet transmission on the interface.
|
|
* This routine must be called with the softc lock held, and is an
|
|
* internal entry point only.
|
|
*/
|
|
static void
|
|
fxp_start_body(if_t ifp)
|
|
{
|
|
struct fxp_softc *sc = if_getsoftc(ifp);
|
|
struct mbuf *mb_head;
|
|
int txqueued;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
if ((if_getdrvflags(ifp) & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
|
|
IFF_DRV_RUNNING)
|
|
return;
|
|
|
|
if (sc->tx_queued > FXP_NTXCB_HIWAT)
|
|
fxp_txeof(sc);
|
|
/*
|
|
* We're finished if there is nothing more to add to the list or if
|
|
* we're all filled up with buffers to transmit.
|
|
* NOTE: One TxCB is reserved to guarantee that fxp_mc_setup() can add
|
|
* a NOP command when needed.
|
|
*/
|
|
txqueued = 0;
|
|
while (!if_sendq_empty(ifp) && sc->tx_queued < FXP_NTXCB - 1) {
|
|
|
|
/*
|
|
* Grab a packet to transmit.
|
|
*/
|
|
mb_head = if_dequeue(ifp);
|
|
if (mb_head == NULL)
|
|
break;
|
|
|
|
if (fxp_encap(sc, &mb_head)) {
|
|
if (mb_head == NULL)
|
|
break;
|
|
if_sendq_prepend(ifp, mb_head);
|
|
if_setdrvflagbits(ifp, IFF_DRV_OACTIVE, 0);
|
|
}
|
|
txqueued++;
|
|
/*
|
|
* Pass packet to bpf if there is a listener.
|
|
*/
|
|
if_bpfmtap(ifp, mb_head);
|
|
}
|
|
|
|
/*
|
|
* We're finished. If we added to the list, issue a RESUME to get DMA
|
|
* going again if suspended.
|
|
*/
|
|
if (txqueued > 0) {
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
fxp_scb_wait(sc);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_RESUME);
|
|
/*
|
|
* Set a 5 second timer just in case we don't hear
|
|
* from the card again.
|
|
*/
|
|
sc->watchdog_timer = 5;
|
|
}
|
|
}
|
|
|
|
static int
|
|
fxp_encap(struct fxp_softc *sc, struct mbuf **m_head)
|
|
{
|
|
if_t ifp;
|
|
struct mbuf *m;
|
|
struct fxp_tx *txp;
|
|
struct fxp_cb_tx *cbp;
|
|
struct tcphdr *tcp;
|
|
bus_dma_segment_t segs[FXP_NTXSEG];
|
|
int error, i, nseg, tcp_payload;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
ifp = sc->ifp;
|
|
|
|
tcp_payload = 0;
|
|
tcp = NULL;
|
|
/*
|
|
* Get pointer to next available tx desc.
|
|
*/
|
|
txp = sc->fxp_desc.tx_last->tx_next;
|
|
|
|
/*
|
|
* A note in Appendix B of the Intel 8255x 10/100 Mbps
|
|
* Ethernet Controller Family Open Source Software
|
|
* Developer Manual says:
|
|
* Using software parsing is only allowed with legal
|
|
* TCP/IP or UDP/IP packets.
|
|
* ...
|
|
* For all other datagrams, hardware parsing must
|
|
* be used.
|
|
* Software parsing appears to truncate ICMP and
|
|
* fragmented UDP packets that contain one to three
|
|
* bytes in the second (and final) mbuf of the packet.
|
|
*/
|
|
if (sc->flags & FXP_FLAG_EXT_RFA)
|
|
txp->tx_cb->ipcb_ip_activation_high =
|
|
FXP_IPCB_HARDWAREPARSING_ENABLE;
|
|
|
|
m = *m_head;
|
|
if (m->m_pkthdr.csum_flags & CSUM_TSO) {
|
|
/*
|
|
* 82550/82551 requires ethernet/IP/TCP headers must be
|
|
* contained in the first active transmit buffer.
|
|
*/
|
|
struct ether_header *eh;
|
|
struct ip *ip;
|
|
uint32_t ip_off, poff;
|
|
|
|
if (M_WRITABLE(*m_head) == 0) {
|
|
/* Get a writable copy. */
|
|
m = m_dup(*m_head, M_NOWAIT);
|
|
m_freem(*m_head);
|
|
if (m == NULL) {
|
|
*m_head = NULL;
|
|
return (ENOBUFS);
|
|
}
|
|
*m_head = m;
|
|
}
|
|
ip_off = sizeof(struct ether_header);
|
|
m = m_pullup(*m_head, ip_off);
|
|
if (m == NULL) {
|
|
*m_head = NULL;
|
|
return (ENOBUFS);
|
|
}
|
|
eh = mtod(m, struct ether_header *);
|
|
/* Check the existence of VLAN tag. */
|
|
if (eh->ether_type == htons(ETHERTYPE_VLAN)) {
|
|
ip_off = sizeof(struct ether_vlan_header);
|
|
m = m_pullup(m, ip_off);
|
|
if (m == NULL) {
|
|
*m_head = NULL;
|
|
return (ENOBUFS);
|
|
}
|
|
}
|
|
m = m_pullup(m, ip_off + sizeof(struct ip));
|
|
if (m == NULL) {
|
|
*m_head = NULL;
|
|
return (ENOBUFS);
|
|
}
|
|
ip = (struct ip *)(mtod(m, char *) + ip_off);
|
|
poff = ip_off + (ip->ip_hl << 2);
|
|
m = m_pullup(m, poff + sizeof(struct tcphdr));
|
|
if (m == NULL) {
|
|
*m_head = NULL;
|
|
return (ENOBUFS);
|
|
}
|
|
tcp = (struct tcphdr *)(mtod(m, char *) + poff);
|
|
m = m_pullup(m, poff + (tcp->th_off << 2));
|
|
if (m == NULL) {
|
|
*m_head = NULL;
|
|
return (ENOBUFS);
|
|
}
|
|
|
|
/*
|
|
* Since 82550/82551 doesn't modify IP length and pseudo
|
|
* checksum in the first frame driver should compute it.
|
|
*/
|
|
ip = (struct ip *)(mtod(m, char *) + ip_off);
|
|
tcp = (struct tcphdr *)(mtod(m, char *) + poff);
|
|
ip->ip_sum = 0;
|
|
ip->ip_len = htons(m->m_pkthdr.tso_segsz + (ip->ip_hl << 2) +
|
|
(tcp->th_off << 2));
|
|
tcp->th_sum = in_pseudo(ip->ip_src.s_addr, ip->ip_dst.s_addr,
|
|
htons(IPPROTO_TCP + (tcp->th_off << 2) +
|
|
m->m_pkthdr.tso_segsz));
|
|
/* Compute total TCP payload. */
|
|
tcp_payload = m->m_pkthdr.len - ip_off - (ip->ip_hl << 2);
|
|
tcp_payload -= tcp->th_off << 2;
|
|
*m_head = m;
|
|
} else if (m->m_pkthdr.csum_flags & FXP_CSUM_FEATURES) {
|
|
/*
|
|
* Deal with TCP/IP checksum offload. Note that
|
|
* in order for TCP checksum offload to work,
|
|
* the pseudo header checksum must have already
|
|
* been computed and stored in the checksum field
|
|
* in the TCP header. The stack should have
|
|
* already done this for us.
|
|
*/
|
|
txp->tx_cb->ipcb_ip_schedule = FXP_IPCB_TCPUDP_CHECKSUM_ENABLE;
|
|
if (m->m_pkthdr.csum_flags & CSUM_TCP)
|
|
txp->tx_cb->ipcb_ip_schedule |= FXP_IPCB_TCP_PACKET;
|
|
|
|
#ifdef FXP_IP_CSUM_WAR
|
|
/*
|
|
* XXX The 82550 chip appears to have trouble
|
|
* dealing with IP header checksums in very small
|
|
* datagrams, namely fragments from 1 to 3 bytes
|
|
* in size. For example, say you want to transmit
|
|
* a UDP packet of 1473 bytes. The packet will be
|
|
* fragmented over two IP datagrams, the latter
|
|
* containing only one byte of data. The 82550 will
|
|
* botch the header checksum on the 1-byte fragment.
|
|
* As long as the datagram contains 4 or more bytes
|
|
* of data, you're ok.
|
|
*
|
|
* The following code attempts to work around this
|
|
* problem: if the datagram is less than 38 bytes
|
|
* in size (14 bytes ether header, 20 bytes IP header,
|
|
* plus 4 bytes of data), we punt and compute the IP
|
|
* header checksum by hand. This workaround doesn't
|
|
* work very well, however, since it can be fooled
|
|
* by things like VLAN tags and IP options that make
|
|
* the header sizes/offsets vary.
|
|
*/
|
|
|
|
if (m->m_pkthdr.csum_flags & CSUM_IP) {
|
|
if (m->m_pkthdr.len < 38) {
|
|
struct ip *ip;
|
|
m->m_data += ETHER_HDR_LEN;
|
|
ip = mtod(m, struct ip *);
|
|
ip->ip_sum = in_cksum(m, ip->ip_hl << 2);
|
|
m->m_data -= ETHER_HDR_LEN;
|
|
m->m_pkthdr.csum_flags &= ~CSUM_IP;
|
|
} else {
|
|
txp->tx_cb->ipcb_ip_activation_high =
|
|
FXP_IPCB_HARDWAREPARSING_ENABLE;
|
|
txp->tx_cb->ipcb_ip_schedule |=
|
|
FXP_IPCB_IP_CHECKSUM_ENABLE;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->fxp_txmtag, txp->tx_map, *m_head,
|
|
segs, &nseg, 0);
|
|
if (error == EFBIG) {
|
|
m = m_collapse(*m_head, M_NOWAIT, sc->maxtxseg);
|
|
if (m == NULL) {
|
|
m_freem(*m_head);
|
|
*m_head = NULL;
|
|
return (ENOMEM);
|
|
}
|
|
*m_head = m;
|
|
error = bus_dmamap_load_mbuf_sg(sc->fxp_txmtag, txp->tx_map,
|
|
*m_head, segs, &nseg, 0);
|
|
if (error != 0) {
|
|
m_freem(*m_head);
|
|
*m_head = NULL;
|
|
return (ENOMEM);
|
|
}
|
|
} else if (error != 0)
|
|
return (error);
|
|
if (nseg == 0) {
|
|
m_freem(*m_head);
|
|
*m_head = NULL;
|
|
return (EIO);
|
|
}
|
|
|
|
KASSERT(nseg <= sc->maxtxseg, ("too many DMA segments"));
|
|
bus_dmamap_sync(sc->fxp_txmtag, txp->tx_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
cbp = txp->tx_cb;
|
|
for (i = 0; i < nseg; i++) {
|
|
/*
|
|
* If this is an 82550/82551, then we're using extended
|
|
* TxCBs _and_ we're using checksum offload. This means
|
|
* that the TxCB is really an IPCB. One major difference
|
|
* between the two is that with plain extended TxCBs,
|
|
* the bottom half of the TxCB contains two entries from
|
|
* the TBD array, whereas IPCBs contain just one entry:
|
|
* one entry (8 bytes) has been sacrificed for the TCP/IP
|
|
* checksum offload control bits. So to make things work
|
|
* right, we have to start filling in the TBD array
|
|
* starting from a different place depending on whether
|
|
* the chip is an 82550/82551 or not.
|
|
*/
|
|
if (sc->flags & FXP_FLAG_EXT_RFA) {
|
|
cbp->tbd[i + 1].tb_addr = htole32(segs[i].ds_addr);
|
|
cbp->tbd[i + 1].tb_size = htole32(segs[i].ds_len);
|
|
} else {
|
|
cbp->tbd[i].tb_addr = htole32(segs[i].ds_addr);
|
|
cbp->tbd[i].tb_size = htole32(segs[i].ds_len);
|
|
}
|
|
}
|
|
if (sc->flags & FXP_FLAG_EXT_RFA) {
|
|
/* Configure dynamic TBD for 82550/82551. */
|
|
cbp->tbd_number = 0xFF;
|
|
cbp->tbd[nseg].tb_size |= htole32(0x8000);
|
|
} else
|
|
cbp->tbd_number = nseg;
|
|
/* Configure TSO. */
|
|
if (m->m_pkthdr.csum_flags & CSUM_TSO) {
|
|
cbp->tbd[-1].tb_size = htole32(m->m_pkthdr.tso_segsz << 16);
|
|
cbp->tbd[1].tb_size |= htole32(tcp_payload << 16);
|
|
cbp->ipcb_ip_schedule |= FXP_IPCB_LARGESEND_ENABLE |
|
|
FXP_IPCB_IP_CHECKSUM_ENABLE |
|
|
FXP_IPCB_TCP_PACKET |
|
|
FXP_IPCB_TCPUDP_CHECKSUM_ENABLE;
|
|
}
|
|
/* Configure VLAN hardware tag insertion. */
|
|
if ((m->m_flags & M_VLANTAG) != 0) {
|
|
cbp->ipcb_vlan_id = htons(m->m_pkthdr.ether_vtag);
|
|
txp->tx_cb->ipcb_ip_activation_high |=
|
|
FXP_IPCB_INSERTVLAN_ENABLE;
|
|
}
|
|
|
|
txp->tx_mbuf = m;
|
|
txp->tx_cb->cb_status = 0;
|
|
txp->tx_cb->byte_count = 0;
|
|
if (sc->tx_queued != FXP_CXINT_THRESH - 1)
|
|
txp->tx_cb->cb_command =
|
|
htole16(sc->tx_cmd | FXP_CB_COMMAND_SF |
|
|
FXP_CB_COMMAND_S);
|
|
else
|
|
txp->tx_cb->cb_command =
|
|
htole16(sc->tx_cmd | FXP_CB_COMMAND_SF |
|
|
FXP_CB_COMMAND_S | FXP_CB_COMMAND_I);
|
|
if ((m->m_pkthdr.csum_flags & CSUM_TSO) == 0)
|
|
txp->tx_cb->tx_threshold = tx_threshold;
|
|
|
|
/*
|
|
* Advance the end of list forward.
|
|
*/
|
|
sc->fxp_desc.tx_last->tx_cb->cb_command &= htole16(~FXP_CB_COMMAND_S);
|
|
sc->fxp_desc.tx_last = txp;
|
|
|
|
/*
|
|
* Advance the beginning of the list forward if there are
|
|
* no other packets queued (when nothing is queued, tx_first
|
|
* sits on the last TxCB that was sent out).
|
|
*/
|
|
if (sc->tx_queued == 0)
|
|
sc->fxp_desc.tx_first = txp;
|
|
|
|
sc->tx_queued++;
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef DEVICE_POLLING
|
|
static poll_handler_t fxp_poll;
|
|
|
|
static int
|
|
fxp_poll(if_t ifp, enum poll_cmd cmd, int count)
|
|
{
|
|
struct fxp_softc *sc = if_getsoftc(ifp);
|
|
uint8_t statack;
|
|
int rx_npkts = 0;
|
|
|
|
FXP_LOCK(sc);
|
|
if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) {
|
|
FXP_UNLOCK(sc);
|
|
return (rx_npkts);
|
|
}
|
|
|
|
statack = FXP_SCB_STATACK_CXTNO | FXP_SCB_STATACK_CNA |
|
|
FXP_SCB_STATACK_FR;
|
|
if (cmd == POLL_AND_CHECK_STATUS) {
|
|
uint8_t tmp;
|
|
|
|
tmp = CSR_READ_1(sc, FXP_CSR_SCB_STATACK);
|
|
if (tmp == 0xff || tmp == 0) {
|
|
FXP_UNLOCK(sc);
|
|
return (rx_npkts); /* nothing to do */
|
|
}
|
|
tmp &= ~statack;
|
|
/* ack what we can */
|
|
if (tmp != 0)
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_STATACK, tmp);
|
|
statack |= tmp;
|
|
}
|
|
rx_npkts = fxp_intr_body(sc, ifp, statack, count);
|
|
FXP_UNLOCK(sc);
|
|
return (rx_npkts);
|
|
}
|
|
#endif /* DEVICE_POLLING */
|
|
|
|
/*
|
|
* Process interface interrupts.
|
|
*/
|
|
static void
|
|
fxp_intr(void *xsc)
|
|
{
|
|
struct fxp_softc *sc = xsc;
|
|
if_t ifp = sc->ifp;
|
|
uint8_t statack;
|
|
|
|
FXP_LOCK(sc);
|
|
if (sc->suspended) {
|
|
FXP_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
#ifdef DEVICE_POLLING
|
|
if (if_getcapenable(ifp) & IFCAP_POLLING) {
|
|
FXP_UNLOCK(sc);
|
|
return;
|
|
}
|
|
#endif
|
|
while ((statack = CSR_READ_1(sc, FXP_CSR_SCB_STATACK)) != 0) {
|
|
/*
|
|
* It should not be possible to have all bits set; the
|
|
* FXP_SCB_INTR_SWI bit always returns 0 on a read. If
|
|
* all bits are set, this may indicate that the card has
|
|
* been physically ejected, so ignore it.
|
|
*/
|
|
if (statack == 0xff) {
|
|
FXP_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* First ACK all the interrupts in this pass.
|
|
*/
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_STATACK, statack);
|
|
if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0)
|
|
fxp_intr_body(sc, ifp, statack, -1);
|
|
}
|
|
FXP_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
fxp_txeof(struct fxp_softc *sc)
|
|
{
|
|
if_t ifp;
|
|
struct fxp_tx *txp;
|
|
|
|
ifp = sc->ifp;
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
for (txp = sc->fxp_desc.tx_first; sc->tx_queued &&
|
|
(le16toh(txp->tx_cb->cb_status) & FXP_CB_STATUS_C) != 0;
|
|
txp = txp->tx_next) {
|
|
if (txp->tx_mbuf != NULL) {
|
|
bus_dmamap_sync(sc->fxp_txmtag, txp->tx_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->fxp_txmtag, txp->tx_map);
|
|
m_freem(txp->tx_mbuf);
|
|
txp->tx_mbuf = NULL;
|
|
/* clear this to reset csum offload bits */
|
|
txp->tx_cb->tbd[0].tb_addr = 0;
|
|
}
|
|
sc->tx_queued--;
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE);
|
|
}
|
|
sc->fxp_desc.tx_first = txp;
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
if (sc->tx_queued == 0)
|
|
sc->watchdog_timer = 0;
|
|
}
|
|
|
|
static void
|
|
fxp_rxcsum(struct fxp_softc *sc, if_t ifp, struct mbuf *m,
|
|
uint16_t status, int pos)
|
|
{
|
|
struct ether_header *eh;
|
|
struct ip *ip;
|
|
struct udphdr *uh;
|
|
int32_t hlen, len, pktlen, temp32;
|
|
uint16_t csum, *opts;
|
|
|
|
if ((sc->flags & FXP_FLAG_82559_RXCSUM) == 0) {
|
|
if ((status & FXP_RFA_STATUS_PARSE) != 0) {
|
|
if (status & FXP_RFDX_CS_IP_CSUM_BIT_VALID)
|
|
m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
|
|
if (status & FXP_RFDX_CS_IP_CSUM_VALID)
|
|
m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
|
|
if ((status & FXP_RFDX_CS_TCPUDP_CSUM_BIT_VALID) &&
|
|
(status & FXP_RFDX_CS_TCPUDP_CSUM_VALID)) {
|
|
m->m_pkthdr.csum_flags |= CSUM_DATA_VALID |
|
|
CSUM_PSEUDO_HDR;
|
|
m->m_pkthdr.csum_data = 0xffff;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
pktlen = m->m_pkthdr.len;
|
|
if (pktlen < sizeof(struct ether_header) + sizeof(struct ip))
|
|
return;
|
|
eh = mtod(m, struct ether_header *);
|
|
if (eh->ether_type != htons(ETHERTYPE_IP))
|
|
return;
|
|
ip = (struct ip *)(eh + 1);
|
|
if (ip->ip_v != IPVERSION)
|
|
return;
|
|
|
|
hlen = ip->ip_hl << 2;
|
|
pktlen -= sizeof(struct ether_header);
|
|
if (hlen < sizeof(struct ip))
|
|
return;
|
|
if (ntohs(ip->ip_len) < hlen)
|
|
return;
|
|
if (ntohs(ip->ip_len) != pktlen)
|
|
return;
|
|
if (ip->ip_off & htons(IP_MF | IP_OFFMASK))
|
|
return; /* can't handle fragmented packet */
|
|
|
|
switch (ip->ip_p) {
|
|
case IPPROTO_TCP:
|
|
if (pktlen < (hlen + sizeof(struct tcphdr)))
|
|
return;
|
|
break;
|
|
case IPPROTO_UDP:
|
|
if (pktlen < (hlen + sizeof(struct udphdr)))
|
|
return;
|
|
uh = (struct udphdr *)((caddr_t)ip + hlen);
|
|
if (uh->uh_sum == 0)
|
|
return; /* no checksum */
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
/* Extract computed checksum. */
|
|
csum = be16dec(mtod(m, char *) + pos);
|
|
/* checksum fixup for IP options */
|
|
len = hlen - sizeof(struct ip);
|
|
if (len > 0) {
|
|
opts = (uint16_t *)(ip + 1);
|
|
for (; len > 0; len -= sizeof(uint16_t), opts++) {
|
|
temp32 = csum - *opts;
|
|
temp32 = (temp32 >> 16) + (temp32 & 65535);
|
|
csum = temp32 & 65535;
|
|
}
|
|
}
|
|
m->m_pkthdr.csum_flags |= CSUM_DATA_VALID;
|
|
m->m_pkthdr.csum_data = csum;
|
|
}
|
|
|
|
static int
|
|
fxp_intr_body(struct fxp_softc *sc, if_t ifp, uint8_t statack,
|
|
int count)
|
|
{
|
|
struct mbuf *m;
|
|
struct fxp_rx *rxp;
|
|
struct fxp_rfa *rfa;
|
|
int rnr = (statack & FXP_SCB_STATACK_RNR) ? 1 : 0;
|
|
int rx_npkts;
|
|
uint16_t status;
|
|
|
|
rx_npkts = 0;
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
if (rnr)
|
|
sc->rnr++;
|
|
#ifdef DEVICE_POLLING
|
|
/* Pick up a deferred RNR condition if `count' ran out last time. */
|
|
if (sc->flags & FXP_FLAG_DEFERRED_RNR) {
|
|
sc->flags &= ~FXP_FLAG_DEFERRED_RNR;
|
|
rnr = 1;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Free any finished transmit mbuf chains.
|
|
*
|
|
* Handle the CNA event likt a CXTNO event. It used to
|
|
* be that this event (control unit not ready) was not
|
|
* encountered, but it is now with the SMPng modifications.
|
|
* The exact sequence of events that occur when the interface
|
|
* is brought up are different now, and if this event
|
|
* goes unhandled, the configuration/rxfilter setup sequence
|
|
* can stall for several seconds. The result is that no
|
|
* packets go out onto the wire for about 5 to 10 seconds
|
|
* after the interface is ifconfig'ed for the first time.
|
|
*/
|
|
if (statack & (FXP_SCB_STATACK_CXTNO | FXP_SCB_STATACK_CNA))
|
|
fxp_txeof(sc);
|
|
|
|
/*
|
|
* Try to start more packets transmitting.
|
|
*/
|
|
if (!if_sendq_empty(ifp))
|
|
fxp_start_body(ifp);
|
|
|
|
/*
|
|
* Just return if nothing happened on the receive side.
|
|
*/
|
|
if (!rnr && (statack & FXP_SCB_STATACK_FR) == 0)
|
|
return (rx_npkts);
|
|
|
|
/*
|
|
* Process receiver interrupts. If a no-resource (RNR)
|
|
* condition exists, get whatever packets we can and
|
|
* re-start the receiver.
|
|
*
|
|
* When using polling, we do not process the list to completion,
|
|
* so when we get an RNR interrupt we must defer the restart
|
|
* until we hit the last buffer with the C bit set.
|
|
* If we run out of cycles and rfa_headm has the C bit set,
|
|
* record the pending RNR in the FXP_FLAG_DEFERRED_RNR flag so
|
|
* that the info will be used in the subsequent polling cycle.
|
|
*/
|
|
for (;;) {
|
|
rxp = sc->fxp_desc.rx_head;
|
|
m = rxp->rx_mbuf;
|
|
rfa = (struct fxp_rfa *)(m->m_ext.ext_buf +
|
|
RFA_ALIGNMENT_FUDGE);
|
|
bus_dmamap_sync(sc->fxp_rxmtag, rxp->rx_map,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
#ifdef DEVICE_POLLING /* loop at most count times if count >=0 */
|
|
if (count >= 0 && count-- == 0) {
|
|
if (rnr) {
|
|
/* Defer RNR processing until the next time. */
|
|
sc->flags |= FXP_FLAG_DEFERRED_RNR;
|
|
rnr = 0;
|
|
}
|
|
break;
|
|
}
|
|
#endif /* DEVICE_POLLING */
|
|
|
|
status = le16toh(rfa->rfa_status);
|
|
if ((status & FXP_RFA_STATUS_C) == 0)
|
|
break;
|
|
|
|
if ((status & FXP_RFA_STATUS_RNR) != 0)
|
|
rnr++;
|
|
/*
|
|
* Advance head forward.
|
|
*/
|
|
sc->fxp_desc.rx_head = rxp->rx_next;
|
|
|
|
/*
|
|
* Add a new buffer to the receive chain.
|
|
* If this fails, the old buffer is recycled
|
|
* instead.
|
|
*/
|
|
if (fxp_new_rfabuf(sc, rxp) == 0) {
|
|
int total_len;
|
|
|
|
/*
|
|
* Fetch packet length (the top 2 bits of
|
|
* actual_size are flags set by the controller
|
|
* upon completion), and drop the packet in case
|
|
* of bogus length or CRC errors.
|
|
*/
|
|
total_len = le16toh(rfa->actual_size) & 0x3fff;
|
|
if ((sc->flags & FXP_FLAG_82559_RXCSUM) != 0 &&
|
|
(if_getcapenable(ifp) & IFCAP_RXCSUM) != 0) {
|
|
/* Adjust for appended checksum bytes. */
|
|
total_len -= 2;
|
|
}
|
|
if (total_len < (int)sizeof(struct ether_header) ||
|
|
total_len > (MCLBYTES - RFA_ALIGNMENT_FUDGE -
|
|
sc->rfa_size) ||
|
|
status & (FXP_RFA_STATUS_CRC |
|
|
FXP_RFA_STATUS_ALIGN | FXP_RFA_STATUS_OVERRUN)) {
|
|
m_freem(m);
|
|
fxp_add_rfabuf(sc, rxp);
|
|
continue;
|
|
}
|
|
|
|
m->m_pkthdr.len = m->m_len = total_len;
|
|
if_setrcvif(m, ifp);
|
|
|
|
/* Do IP checksum checking. */
|
|
if ((if_getcapenable(ifp) & IFCAP_RXCSUM) != 0)
|
|
fxp_rxcsum(sc, ifp, m, status, total_len);
|
|
if ((if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) != 0 &&
|
|
(status & FXP_RFA_STATUS_VLAN) != 0) {
|
|
m->m_pkthdr.ether_vtag =
|
|
ntohs(rfa->rfax_vlan_id);
|
|
m->m_flags |= M_VLANTAG;
|
|
}
|
|
/*
|
|
* Drop locks before calling if_input() since it
|
|
* may re-enter fxp_start() in the netisr case.
|
|
* This would result in a lock reversal. Better
|
|
* performance might be obtained by chaining all
|
|
* packets received, dropping the lock, and then
|
|
* calling if_input() on each one.
|
|
*/
|
|
FXP_UNLOCK(sc);
|
|
if_input(ifp, m);
|
|
FXP_LOCK(sc);
|
|
rx_npkts++;
|
|
if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
|
|
return (rx_npkts);
|
|
} else {
|
|
/* Reuse RFA and loaded DMA map. */
|
|
if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
|
|
fxp_discard_rfabuf(sc, rxp);
|
|
}
|
|
fxp_add_rfabuf(sc, rxp);
|
|
}
|
|
if (rnr) {
|
|
fxp_scb_wait(sc);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL,
|
|
sc->fxp_desc.rx_head->rx_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_START);
|
|
}
|
|
return (rx_npkts);
|
|
}
|
|
|
|
static void
|
|
fxp_update_stats(struct fxp_softc *sc)
|
|
{
|
|
if_t ifp = sc->ifp;
|
|
struct fxp_stats *sp = sc->fxp_stats;
|
|
struct fxp_hwstats *hsp;
|
|
uint32_t *status;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
bus_dmamap_sync(sc->fxp_stag, sc->fxp_smap,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
/* Update statistical counters. */
|
|
if (sc->revision >= FXP_REV_82559_A0)
|
|
status = &sp->completion_status;
|
|
else if (sc->revision >= FXP_REV_82558_A4)
|
|
status = (uint32_t *)&sp->tx_tco;
|
|
else
|
|
status = &sp->tx_pause;
|
|
if (*status == htole32(FXP_STATS_DR_COMPLETE)) {
|
|
hsp = &sc->fxp_hwstats;
|
|
hsp->tx_good += le32toh(sp->tx_good);
|
|
hsp->tx_maxcols += le32toh(sp->tx_maxcols);
|
|
hsp->tx_latecols += le32toh(sp->tx_latecols);
|
|
hsp->tx_underruns += le32toh(sp->tx_underruns);
|
|
hsp->tx_lostcrs += le32toh(sp->tx_lostcrs);
|
|
hsp->tx_deffered += le32toh(sp->tx_deffered);
|
|
hsp->tx_single_collisions += le32toh(sp->tx_single_collisions);
|
|
hsp->tx_multiple_collisions +=
|
|
le32toh(sp->tx_multiple_collisions);
|
|
hsp->tx_total_collisions += le32toh(sp->tx_total_collisions);
|
|
hsp->rx_good += le32toh(sp->rx_good);
|
|
hsp->rx_crc_errors += le32toh(sp->rx_crc_errors);
|
|
hsp->rx_alignment_errors += le32toh(sp->rx_alignment_errors);
|
|
hsp->rx_rnr_errors += le32toh(sp->rx_rnr_errors);
|
|
hsp->rx_overrun_errors += le32toh(sp->rx_overrun_errors);
|
|
hsp->rx_cdt_errors += le32toh(sp->rx_cdt_errors);
|
|
hsp->rx_shortframes += le32toh(sp->rx_shortframes);
|
|
hsp->tx_pause += le32toh(sp->tx_pause);
|
|
hsp->rx_pause += le32toh(sp->rx_pause);
|
|
hsp->rx_controls += le32toh(sp->rx_controls);
|
|
hsp->tx_tco += le16toh(sp->tx_tco);
|
|
hsp->rx_tco += le16toh(sp->rx_tco);
|
|
|
|
if_inc_counter(ifp, IFCOUNTER_OPACKETS, le32toh(sp->tx_good));
|
|
if_inc_counter(ifp, IFCOUNTER_COLLISIONS,
|
|
le32toh(sp->tx_total_collisions));
|
|
if (sp->rx_good) {
|
|
if_inc_counter(ifp, IFCOUNTER_IPACKETS,
|
|
le32toh(sp->rx_good));
|
|
sc->rx_idle_secs = 0;
|
|
} else if (sc->flags & FXP_FLAG_RXBUG) {
|
|
/*
|
|
* Receiver's been idle for another second.
|
|
*/
|
|
sc->rx_idle_secs++;
|
|
}
|
|
if_inc_counter(ifp, IFCOUNTER_IERRORS,
|
|
le32toh(sp->rx_crc_errors) +
|
|
le32toh(sp->rx_alignment_errors) +
|
|
le32toh(sp->rx_rnr_errors) +
|
|
le32toh(sp->rx_overrun_errors));
|
|
/*
|
|
* If any transmit underruns occurred, bump up the transmit
|
|
* threshold by another 512 bytes (64 * 8).
|
|
*/
|
|
if (sp->tx_underruns) {
|
|
if_inc_counter(ifp, IFCOUNTER_OERRORS,
|
|
le32toh(sp->tx_underruns));
|
|
if (tx_threshold < 192)
|
|
tx_threshold += 64;
|
|
}
|
|
*status = 0;
|
|
bus_dmamap_sync(sc->fxp_stag, sc->fxp_smap,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Update packet in/out/collision statistics. The i82557 doesn't
|
|
* allow you to access these counters without doing a fairly
|
|
* expensive DMA to get _all_ of the statistics it maintains, so
|
|
* we do this operation here only once per second. The statistics
|
|
* counters in the kernel are updated from the previous dump-stats
|
|
* DMA and then a new dump-stats DMA is started. The on-chip
|
|
* counters are zeroed when the DMA completes. If we can't start
|
|
* the DMA immediately, we don't wait - we just prepare to read
|
|
* them again next time.
|
|
*/
|
|
static void
|
|
fxp_tick(void *xsc)
|
|
{
|
|
struct fxp_softc *sc = xsc;
|
|
if_t ifp = sc->ifp;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
/* Update statistical counters. */
|
|
fxp_update_stats(sc);
|
|
|
|
/*
|
|
* Release any xmit buffers that have completed DMA. This isn't
|
|
* strictly necessary to do here, but it's advantagous for mbufs
|
|
* with external storage to be released in a timely manner rather
|
|
* than being defered for a potentially long time. This limits
|
|
* the delay to a maximum of one second.
|
|
*/
|
|
fxp_txeof(sc);
|
|
|
|
/*
|
|
* If we haven't received any packets in FXP_MAC_RX_IDLE seconds,
|
|
* then assume the receiver has locked up and attempt to clear
|
|
* the condition by reprogramming the multicast filter. This is
|
|
* a work-around for a bug in the 82557 where the receiver locks
|
|
* up if it gets certain types of garbage in the synchronization
|
|
* bits prior to the packet header. This bug is supposed to only
|
|
* occur in 10Mbps mode, but has been seen to occur in 100Mbps
|
|
* mode as well (perhaps due to a 10/100 speed transition).
|
|
*/
|
|
if (sc->rx_idle_secs > FXP_MAX_RX_IDLE) {
|
|
sc->rx_idle_secs = 0;
|
|
if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) {
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
|
|
fxp_init_body(sc, 1);
|
|
}
|
|
return;
|
|
}
|
|
/*
|
|
* If there is no pending command, start another stats
|
|
* dump. Otherwise punt for now.
|
|
*/
|
|
if (CSR_READ_1(sc, FXP_CSR_SCB_COMMAND) == 0) {
|
|
/*
|
|
* Start another stats dump.
|
|
*/
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_DUMPRESET);
|
|
}
|
|
if (sc->miibus != NULL)
|
|
mii_tick(device_get_softc(sc->miibus));
|
|
|
|
/*
|
|
* Check that chip hasn't hung.
|
|
*/
|
|
fxp_watchdog(sc);
|
|
|
|
/*
|
|
* Schedule another timeout one second from now.
|
|
*/
|
|
callout_reset(&sc->stat_ch, hz, fxp_tick, sc);
|
|
}
|
|
|
|
/*
|
|
* Stop the interface. Cancels the statistics updater and resets
|
|
* the interface.
|
|
*/
|
|
static void
|
|
fxp_stop(struct fxp_softc *sc)
|
|
{
|
|
if_t ifp = sc->ifp;
|
|
struct fxp_tx *txp;
|
|
int i;
|
|
|
|
if_setdrvflagbits(ifp, 0, (IFF_DRV_RUNNING | IFF_DRV_OACTIVE));
|
|
sc->watchdog_timer = 0;
|
|
|
|
/*
|
|
* Cancel stats updater.
|
|
*/
|
|
callout_stop(&sc->stat_ch);
|
|
|
|
/*
|
|
* Preserve PCI configuration, configure, IA/multicast
|
|
* setup and put RU and CU into idle state.
|
|
*/
|
|
CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SELECTIVE_RESET);
|
|
DELAY(50);
|
|
/* Disable interrupts. */
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, FXP_SCB_INTR_DISABLE);
|
|
|
|
fxp_update_stats(sc);
|
|
|
|
/*
|
|
* Release any xmit buffers.
|
|
*/
|
|
txp = sc->fxp_desc.tx_list;
|
|
for (i = 0; i < FXP_NTXCB; i++) {
|
|
if (txp[i].tx_mbuf != NULL) {
|
|
bus_dmamap_sync(sc->fxp_txmtag, txp[i].tx_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->fxp_txmtag, txp[i].tx_map);
|
|
m_freem(txp[i].tx_mbuf);
|
|
txp[i].tx_mbuf = NULL;
|
|
/* clear this to reset csum offload bits */
|
|
txp[i].tx_cb->tbd[0].tb_addr = 0;
|
|
}
|
|
}
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
sc->tx_queued = 0;
|
|
}
|
|
|
|
/*
|
|
* Watchdog/transmission transmit timeout handler. Called when a
|
|
* transmission is started on the interface, but no interrupt is
|
|
* received before the timeout. This usually indicates that the
|
|
* card has wedged for some reason.
|
|
*/
|
|
static void
|
|
fxp_watchdog(struct fxp_softc *sc)
|
|
{
|
|
if_t ifp = sc->ifp;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
if (sc->watchdog_timer == 0 || --sc->watchdog_timer)
|
|
return;
|
|
|
|
device_printf(sc->dev, "device timeout\n");
|
|
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
|
|
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
|
|
fxp_init_body(sc, 1);
|
|
}
|
|
|
|
/*
|
|
* Acquire locks and then call the real initialization function. This
|
|
* is necessary because ether_ioctl() calls if_init() and this would
|
|
* result in mutex recursion if the mutex was held.
|
|
*/
|
|
static void
|
|
fxp_init(void *xsc)
|
|
{
|
|
struct fxp_softc *sc = xsc;
|
|
|
|
FXP_LOCK(sc);
|
|
fxp_init_body(sc, 1);
|
|
FXP_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Perform device initialization. This routine must be called with the
|
|
* softc lock held.
|
|
*/
|
|
static void
|
|
fxp_init_body(struct fxp_softc *sc, int setmedia)
|
|
{
|
|
if_t ifp = sc->ifp;
|
|
struct mii_data *mii;
|
|
struct fxp_cb_config *cbp;
|
|
struct fxp_cb_ias *cb_ias;
|
|
struct fxp_cb_tx *tcbp;
|
|
struct fxp_tx *txp;
|
|
int i, prm;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
|
|
return;
|
|
|
|
/*
|
|
* Cancel any pending I/O
|
|
*/
|
|
fxp_stop(sc);
|
|
|
|
/*
|
|
* Issue software reset, which also unloads the microcode.
|
|
*/
|
|
sc->flags &= ~FXP_FLAG_UCODE;
|
|
CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SOFTWARE_RESET);
|
|
DELAY(50);
|
|
|
|
prm = (if_getflags(ifp) & IFF_PROMISC) ? 1 : 0;
|
|
|
|
/*
|
|
* Initialize base of CBL and RFA memory. Loading with zero
|
|
* sets it up for regular linear addressing.
|
|
*/
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, 0);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_BASE);
|
|
|
|
fxp_scb_wait(sc);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_BASE);
|
|
|
|
/*
|
|
* Initialize base of dump-stats buffer.
|
|
*/
|
|
fxp_scb_wait(sc);
|
|
bzero(sc->fxp_stats, sizeof(struct fxp_stats));
|
|
bus_dmamap_sync(sc->fxp_stag, sc->fxp_smap,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, sc->stats_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_DUMP_ADR);
|
|
|
|
/*
|
|
* Attempt to load microcode if requested.
|
|
* For ICH based controllers do not load microcode.
|
|
*/
|
|
if (sc->ident->ich == 0) {
|
|
if (if_getflags(ifp) & IFF_LINK0 &&
|
|
(sc->flags & FXP_FLAG_UCODE) == 0)
|
|
fxp_load_ucode(sc);
|
|
}
|
|
|
|
/*
|
|
* Set IFF_ALLMULTI status. It's needed in configure action
|
|
* command.
|
|
*/
|
|
fxp_mc_addrs(sc);
|
|
|
|
/*
|
|
* We temporarily use memory that contains the TxCB list to
|
|
* construct the config CB. The TxCB list memory is rebuilt
|
|
* later.
|
|
*/
|
|
cbp = (struct fxp_cb_config *)sc->fxp_desc.cbl_list;
|
|
|
|
/*
|
|
* This bcopy is kind of disgusting, but there are a bunch of must be
|
|
* zero and must be one bits in this structure and this is the easiest
|
|
* way to initialize them all to proper values.
|
|
*/
|
|
bcopy(fxp_cb_config_template, cbp, sizeof(fxp_cb_config_template));
|
|
|
|
cbp->cb_status = 0;
|
|
cbp->cb_command = htole16(FXP_CB_COMMAND_CONFIG |
|
|
FXP_CB_COMMAND_EL);
|
|
cbp->link_addr = 0xffffffff; /* (no) next command */
|
|
cbp->byte_count = sc->flags & FXP_FLAG_EXT_RFA ? 32 : 22;
|
|
cbp->rx_fifo_limit = 8; /* rx fifo threshold (32 bytes) */
|
|
cbp->tx_fifo_limit = 0; /* tx fifo threshold (0 bytes) */
|
|
cbp->adaptive_ifs = 0; /* (no) adaptive interframe spacing */
|
|
cbp->mwi_enable = sc->flags & FXP_FLAG_MWI_ENABLE ? 1 : 0;
|
|
cbp->type_enable = 0; /* actually reserved */
|
|
cbp->read_align_en = sc->flags & FXP_FLAG_READ_ALIGN ? 1 : 0;
|
|
cbp->end_wr_on_cl = sc->flags & FXP_FLAG_WRITE_ALIGN ? 1 : 0;
|
|
cbp->rx_dma_bytecount = 0; /* (no) rx DMA max */
|
|
cbp->tx_dma_bytecount = 0; /* (no) tx DMA max */
|
|
cbp->dma_mbce = 0; /* (disable) dma max counters */
|
|
cbp->late_scb = 0; /* (don't) defer SCB update */
|
|
cbp->direct_dma_dis = 1; /* disable direct rcv dma mode */
|
|
cbp->tno_int_or_tco_en =0; /* (disable) tx not okay interrupt */
|
|
cbp->ci_int = 1; /* interrupt on CU idle */
|
|
cbp->ext_txcb_dis = sc->flags & FXP_FLAG_EXT_TXCB ? 0 : 1;
|
|
cbp->ext_stats_dis = 1; /* disable extended counters */
|
|
cbp->keep_overrun_rx = 0; /* don't pass overrun frames to host */
|
|
cbp->save_bf = sc->flags & FXP_FLAG_SAVE_BAD ? 1 : prm;
|
|
cbp->disc_short_rx = !prm; /* discard short packets */
|
|
cbp->underrun_retry = 1; /* retry mode (once) on DMA underrun */
|
|
cbp->two_frames = 0; /* do not limit FIFO to 2 frames */
|
|
cbp->dyn_tbd = sc->flags & FXP_FLAG_EXT_RFA ? 1 : 0;
|
|
cbp->ext_rfa = sc->flags & FXP_FLAG_EXT_RFA ? 1 : 0;
|
|
cbp->mediatype = sc->flags & FXP_FLAG_SERIAL_MEDIA ? 0 : 1;
|
|
cbp->csma_dis = 0; /* (don't) disable link */
|
|
cbp->tcp_udp_cksum = ((sc->flags & FXP_FLAG_82559_RXCSUM) != 0 &&
|
|
(if_getcapenable(ifp) & IFCAP_RXCSUM) != 0) ? 1 : 0;
|
|
cbp->vlan_tco = 0; /* (don't) enable vlan wakeup */
|
|
cbp->link_wake_en = 0; /* (don't) assert PME# on link change */
|
|
cbp->arp_wake_en = 0; /* (don't) assert PME# on arp */
|
|
cbp->mc_wake_en = 0; /* (don't) enable PME# on mcmatch */
|
|
cbp->nsai = 1; /* (don't) disable source addr insert */
|
|
cbp->preamble_length = 2; /* (7 byte) preamble */
|
|
cbp->loopback = 0; /* (don't) loopback */
|
|
cbp->linear_priority = 0; /* (normal CSMA/CD operation) */
|
|
cbp->linear_pri_mode = 0; /* (wait after xmit only) */
|
|
cbp->interfrm_spacing = 6; /* (96 bits of) interframe spacing */
|
|
cbp->promiscuous = prm; /* promiscuous mode */
|
|
cbp->bcast_disable = 0; /* (don't) disable broadcasts */
|
|
cbp->wait_after_win = 0; /* (don't) enable modified backoff alg*/
|
|
cbp->ignore_ul = 0; /* consider U/L bit in IA matching */
|
|
cbp->crc16_en = 0; /* (don't) enable crc-16 algorithm */
|
|
cbp->crscdt = sc->flags & FXP_FLAG_SERIAL_MEDIA ? 1 : 0;
|
|
|
|
cbp->stripping = !prm; /* truncate rx packet to byte count */
|
|
cbp->padding = 1; /* (do) pad short tx packets */
|
|
cbp->rcv_crc_xfer = 0; /* (don't) xfer CRC to host */
|
|
cbp->long_rx_en = sc->flags & FXP_FLAG_LONG_PKT_EN ? 1 : 0;
|
|
cbp->ia_wake_en = 0; /* (don't) wake up on address match */
|
|
cbp->magic_pkt_dis = sc->flags & FXP_FLAG_WOL ? 0 : 1;
|
|
cbp->force_fdx = 0; /* (don't) force full duplex */
|
|
cbp->fdx_pin_en = 1; /* (enable) FDX# pin */
|
|
cbp->multi_ia = 0; /* (don't) accept multiple IAs */
|
|
cbp->mc_all = if_getflags(ifp) & IFF_ALLMULTI ? 1 : prm;
|
|
cbp->gamla_rx = sc->flags & FXP_FLAG_EXT_RFA ? 1 : 0;
|
|
cbp->vlan_strip_en = ((sc->flags & FXP_FLAG_EXT_RFA) != 0 &&
|
|
(if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) != 0) ? 1 : 0;
|
|
|
|
if (sc->revision == FXP_REV_82557) {
|
|
/*
|
|
* The 82557 has no hardware flow control, the values
|
|
* below are the defaults for the chip.
|
|
*/
|
|
cbp->fc_delay_lsb = 0;
|
|
cbp->fc_delay_msb = 0x40;
|
|
cbp->pri_fc_thresh = 3;
|
|
cbp->tx_fc_dis = 0;
|
|
cbp->rx_fc_restop = 0;
|
|
cbp->rx_fc_restart = 0;
|
|
cbp->fc_filter = 0;
|
|
cbp->pri_fc_loc = 1;
|
|
} else {
|
|
/* Set pause RX FIFO threshold to 1KB. */
|
|
CSR_WRITE_1(sc, FXP_CSR_FC_THRESH, 1);
|
|
/* Set pause time. */
|
|
cbp->fc_delay_lsb = 0xff;
|
|
cbp->fc_delay_msb = 0xff;
|
|
cbp->pri_fc_thresh = 3;
|
|
mii = device_get_softc(sc->miibus);
|
|
if ((IFM_OPTIONS(mii->mii_media_active) &
|
|
IFM_ETH_TXPAUSE) != 0)
|
|
/* enable transmit FC */
|
|
cbp->tx_fc_dis = 0;
|
|
else
|
|
/* disable transmit FC */
|
|
cbp->tx_fc_dis = 1;
|
|
if ((IFM_OPTIONS(mii->mii_media_active) &
|
|
IFM_ETH_RXPAUSE) != 0) {
|
|
/* enable FC restart/restop frames */
|
|
cbp->rx_fc_restart = 1;
|
|
cbp->rx_fc_restop = 1;
|
|
} else {
|
|
/* disable FC restart/restop frames */
|
|
cbp->rx_fc_restart = 0;
|
|
cbp->rx_fc_restop = 0;
|
|
}
|
|
cbp->fc_filter = !prm; /* drop FC frames to host */
|
|
cbp->pri_fc_loc = 1; /* FC pri location (byte31) */
|
|
}
|
|
|
|
/* Enable 82558 and 82559 extended statistics functionality. */
|
|
if (sc->revision >= FXP_REV_82558_A4) {
|
|
if (sc->revision >= FXP_REV_82559_A0) {
|
|
/*
|
|
* Extend configuration table size to 32
|
|
* to include TCO configuration.
|
|
*/
|
|
cbp->byte_count = 32;
|
|
cbp->ext_stats_dis = 1;
|
|
/* Enable TCO stats. */
|
|
cbp->tno_int_or_tco_en = 1;
|
|
cbp->gamla_rx = 1;
|
|
} else
|
|
cbp->ext_stats_dis = 0;
|
|
}
|
|
|
|
/*
|
|
* Start the config command/DMA.
|
|
*/
|
|
fxp_scb_wait(sc);
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, sc->fxp_desc.cbl_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START);
|
|
/* ...and wait for it to complete. */
|
|
fxp_dma_wait(sc, &cbp->cb_status, sc->cbl_tag, sc->cbl_map);
|
|
|
|
/*
|
|
* Now initialize the station address. Temporarily use the TxCB
|
|
* memory area like we did above for the config CB.
|
|
*/
|
|
cb_ias = (struct fxp_cb_ias *)sc->fxp_desc.cbl_list;
|
|
cb_ias->cb_status = 0;
|
|
cb_ias->cb_command = htole16(FXP_CB_COMMAND_IAS | FXP_CB_COMMAND_EL);
|
|
cb_ias->link_addr = 0xffffffff;
|
|
bcopy(if_getlladdr(sc->ifp), cb_ias->macaddr, ETHER_ADDR_LEN);
|
|
|
|
/*
|
|
* Start the IAS (Individual Address Setup) command/DMA.
|
|
*/
|
|
fxp_scb_wait(sc);
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, sc->fxp_desc.cbl_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START);
|
|
/* ...and wait for it to complete. */
|
|
fxp_dma_wait(sc, &cb_ias->cb_status, sc->cbl_tag, sc->cbl_map);
|
|
|
|
/*
|
|
* Initialize the multicast address list.
|
|
*/
|
|
fxp_mc_setup(sc);
|
|
|
|
/*
|
|
* Initialize transmit control block (TxCB) list.
|
|
*/
|
|
txp = sc->fxp_desc.tx_list;
|
|
tcbp = sc->fxp_desc.cbl_list;
|
|
bzero(tcbp, FXP_TXCB_SZ);
|
|
for (i = 0; i < FXP_NTXCB; i++) {
|
|
txp[i].tx_mbuf = NULL;
|
|
tcbp[i].cb_status = htole16(FXP_CB_STATUS_C | FXP_CB_STATUS_OK);
|
|
tcbp[i].cb_command = htole16(FXP_CB_COMMAND_NOP);
|
|
tcbp[i].link_addr = htole32(sc->fxp_desc.cbl_addr +
|
|
(((i + 1) & FXP_TXCB_MASK) * sizeof(struct fxp_cb_tx)));
|
|
if (sc->flags & FXP_FLAG_EXT_TXCB)
|
|
tcbp[i].tbd_array_addr =
|
|
htole32(FXP_TXCB_DMA_ADDR(sc, &tcbp[i].tbd[2]));
|
|
else
|
|
tcbp[i].tbd_array_addr =
|
|
htole32(FXP_TXCB_DMA_ADDR(sc, &tcbp[i].tbd[0]));
|
|
txp[i].tx_next = &txp[(i + 1) & FXP_TXCB_MASK];
|
|
}
|
|
/*
|
|
* Set the suspend flag on the first TxCB and start the control
|
|
* unit. It will execute the NOP and then suspend.
|
|
*/
|
|
tcbp->cb_command = htole16(FXP_CB_COMMAND_NOP | FXP_CB_COMMAND_S);
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
sc->fxp_desc.tx_first = sc->fxp_desc.tx_last = txp;
|
|
sc->tx_queued = 1;
|
|
|
|
fxp_scb_wait(sc);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, sc->fxp_desc.cbl_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START);
|
|
|
|
/*
|
|
* Initialize receiver buffer area - RFA.
|
|
*/
|
|
fxp_scb_wait(sc);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, sc->fxp_desc.rx_head->rx_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_START);
|
|
|
|
if (sc->miibus != NULL && setmedia != 0)
|
|
mii_mediachg(device_get_softc(sc->miibus));
|
|
|
|
if_setdrvflagbits(ifp, IFF_DRV_RUNNING, IFF_DRV_OACTIVE);
|
|
|
|
/*
|
|
* Enable interrupts.
|
|
*/
|
|
#ifdef DEVICE_POLLING
|
|
/*
|
|
* ... but only do that if we are not polling. And because (presumably)
|
|
* the default is interrupts on, we need to disable them explicitly!
|
|
*/
|
|
if (if_getcapenable(ifp) & IFCAP_POLLING )
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, FXP_SCB_INTR_DISABLE);
|
|
else
|
|
#endif /* DEVICE_POLLING */
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, 0);
|
|
|
|
/*
|
|
* Start stats updater.
|
|
*/
|
|
callout_reset(&sc->stat_ch, hz, fxp_tick, sc);
|
|
}
|
|
|
|
static int
|
|
fxp_serial_ifmedia_upd(if_t ifp)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
fxp_serial_ifmedia_sts(if_t ifp, struct ifmediareq *ifmr)
|
|
{
|
|
|
|
ifmr->ifm_active = IFM_ETHER|IFM_MANUAL;
|
|
}
|
|
|
|
/*
|
|
* Change media according to request.
|
|
*/
|
|
static int
|
|
fxp_ifmedia_upd(if_t ifp)
|
|
{
|
|
struct fxp_softc *sc = if_getsoftc(ifp);
|
|
struct mii_data *mii;
|
|
struct mii_softc *miisc;
|
|
|
|
mii = device_get_softc(sc->miibus);
|
|
FXP_LOCK(sc);
|
|
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
|
|
PHY_RESET(miisc);
|
|
mii_mediachg(mii);
|
|
FXP_UNLOCK(sc);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Notify the world which media we're using.
|
|
*/
|
|
static void
|
|
fxp_ifmedia_sts(if_t ifp, struct ifmediareq *ifmr)
|
|
{
|
|
struct fxp_softc *sc = if_getsoftc(ifp);
|
|
struct mii_data *mii;
|
|
|
|
mii = device_get_softc(sc->miibus);
|
|
FXP_LOCK(sc);
|
|
mii_pollstat(mii);
|
|
ifmr->ifm_active = mii->mii_media_active;
|
|
ifmr->ifm_status = mii->mii_media_status;
|
|
FXP_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Add a buffer to the end of the RFA buffer list.
|
|
* Return 0 if successful, 1 for failure. A failure results in
|
|
* reusing the RFA buffer.
|
|
* The RFA struct is stuck at the beginning of mbuf cluster and the
|
|
* data pointer is fixed up to point just past it.
|
|
*/
|
|
static int
|
|
fxp_new_rfabuf(struct fxp_softc *sc, struct fxp_rx *rxp)
|
|
{
|
|
struct mbuf *m;
|
|
struct fxp_rfa *rfa;
|
|
bus_dmamap_t tmp_map;
|
|
int error;
|
|
|
|
m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
|
|
if (m == NULL)
|
|
return (ENOBUFS);
|
|
|
|
/*
|
|
* Move the data pointer up so that the incoming data packet
|
|
* will be 32-bit aligned.
|
|
*/
|
|
m->m_data += RFA_ALIGNMENT_FUDGE;
|
|
|
|
/*
|
|
* Get a pointer to the base of the mbuf cluster and move
|
|
* data start past it.
|
|
*/
|
|
rfa = mtod(m, struct fxp_rfa *);
|
|
m->m_data += sc->rfa_size;
|
|
rfa->size = htole16(MCLBYTES - sc->rfa_size - RFA_ALIGNMENT_FUDGE);
|
|
|
|
rfa->rfa_status = 0;
|
|
rfa->rfa_control = htole16(FXP_RFA_CONTROL_EL);
|
|
rfa->actual_size = 0;
|
|
m->m_len = m->m_pkthdr.len = MCLBYTES - RFA_ALIGNMENT_FUDGE -
|
|
sc->rfa_size;
|
|
|
|
/*
|
|
* Initialize the rest of the RFA. Note that since the RFA
|
|
* is misaligned, we cannot store values directly. We're thus
|
|
* using the le32enc() function which handles endianness and
|
|
* is also alignment-safe.
|
|
*/
|
|
le32enc(&rfa->link_addr, 0xffffffff);
|
|
le32enc(&rfa->rbd_addr, 0xffffffff);
|
|
|
|
/* Map the RFA into DMA memory. */
|
|
error = bus_dmamap_load(sc->fxp_rxmtag, sc->spare_map, rfa,
|
|
MCLBYTES - RFA_ALIGNMENT_FUDGE, fxp_dma_map_addr,
|
|
&rxp->rx_addr, BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
m_freem(m);
|
|
return (error);
|
|
}
|
|
|
|
if (rxp->rx_mbuf != NULL)
|
|
bus_dmamap_unload(sc->fxp_rxmtag, rxp->rx_map);
|
|
tmp_map = sc->spare_map;
|
|
sc->spare_map = rxp->rx_map;
|
|
rxp->rx_map = tmp_map;
|
|
rxp->rx_mbuf = m;
|
|
|
|
bus_dmamap_sync(sc->fxp_rxmtag, rxp->rx_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
fxp_add_rfabuf(struct fxp_softc *sc, struct fxp_rx *rxp)
|
|
{
|
|
struct fxp_rfa *p_rfa;
|
|
struct fxp_rx *p_rx;
|
|
|
|
/*
|
|
* If there are other buffers already on the list, attach this
|
|
* one to the end by fixing up the tail to point to this one.
|
|
*/
|
|
if (sc->fxp_desc.rx_head != NULL) {
|
|
p_rx = sc->fxp_desc.rx_tail;
|
|
p_rfa = (struct fxp_rfa *)
|
|
(p_rx->rx_mbuf->m_ext.ext_buf + RFA_ALIGNMENT_FUDGE);
|
|
p_rx->rx_next = rxp;
|
|
le32enc(&p_rfa->link_addr, rxp->rx_addr);
|
|
p_rfa->rfa_control = 0;
|
|
bus_dmamap_sync(sc->fxp_rxmtag, p_rx->rx_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
} else {
|
|
rxp->rx_next = NULL;
|
|
sc->fxp_desc.rx_head = rxp;
|
|
}
|
|
sc->fxp_desc.rx_tail = rxp;
|
|
}
|
|
|
|
static void
|
|
fxp_discard_rfabuf(struct fxp_softc *sc, struct fxp_rx *rxp)
|
|
{
|
|
struct mbuf *m;
|
|
struct fxp_rfa *rfa;
|
|
|
|
m = rxp->rx_mbuf;
|
|
m->m_data = m->m_ext.ext_buf;
|
|
/*
|
|
* Move the data pointer up so that the incoming data packet
|
|
* will be 32-bit aligned.
|
|
*/
|
|
m->m_data += RFA_ALIGNMENT_FUDGE;
|
|
|
|
/*
|
|
* Get a pointer to the base of the mbuf cluster and move
|
|
* data start past it.
|
|
*/
|
|
rfa = mtod(m, struct fxp_rfa *);
|
|
m->m_data += sc->rfa_size;
|
|
rfa->size = htole16(MCLBYTES - sc->rfa_size - RFA_ALIGNMENT_FUDGE);
|
|
|
|
rfa->rfa_status = 0;
|
|
rfa->rfa_control = htole16(FXP_RFA_CONTROL_EL);
|
|
rfa->actual_size = 0;
|
|
|
|
/*
|
|
* Initialize the rest of the RFA. Note that since the RFA
|
|
* is misaligned, we cannot store values directly. We're thus
|
|
* using the le32enc() function which handles endianness and
|
|
* is also alignment-safe.
|
|
*/
|
|
le32enc(&rfa->link_addr, 0xffffffff);
|
|
le32enc(&rfa->rbd_addr, 0xffffffff);
|
|
|
|
bus_dmamap_sync(sc->fxp_rxmtag, rxp->rx_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
}
|
|
|
|
static int
|
|
fxp_miibus_readreg(device_t dev, int phy, int reg)
|
|
{
|
|
struct fxp_softc *sc = device_get_softc(dev);
|
|
int count = 10000;
|
|
int value;
|
|
|
|
CSR_WRITE_4(sc, FXP_CSR_MDICONTROL,
|
|
(FXP_MDI_READ << 26) | (reg << 16) | (phy << 21));
|
|
|
|
while (((value = CSR_READ_4(sc, FXP_CSR_MDICONTROL)) & 0x10000000) == 0
|
|
&& count--)
|
|
DELAY(10);
|
|
|
|
if (count <= 0)
|
|
device_printf(dev, "fxp_miibus_readreg: timed out\n");
|
|
|
|
return (value & 0xffff);
|
|
}
|
|
|
|
static int
|
|
fxp_miibus_writereg(device_t dev, int phy, int reg, int value)
|
|
{
|
|
struct fxp_softc *sc = device_get_softc(dev);
|
|
int count = 10000;
|
|
|
|
CSR_WRITE_4(sc, FXP_CSR_MDICONTROL,
|
|
(FXP_MDI_WRITE << 26) | (reg << 16) | (phy << 21) |
|
|
(value & 0xffff));
|
|
|
|
while ((CSR_READ_4(sc, FXP_CSR_MDICONTROL) & 0x10000000) == 0 &&
|
|
count--)
|
|
DELAY(10);
|
|
|
|
if (count <= 0)
|
|
device_printf(dev, "fxp_miibus_writereg: timed out\n");
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
fxp_miibus_statchg(device_t dev)
|
|
{
|
|
struct fxp_softc *sc;
|
|
struct mii_data *mii;
|
|
if_t ifp;
|
|
|
|
sc = device_get_softc(dev);
|
|
mii = device_get_softc(sc->miibus);
|
|
ifp = sc->ifp;
|
|
if (mii == NULL || ifp == (void *)NULL ||
|
|
(if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0 ||
|
|
(mii->mii_media_status & (IFM_AVALID | IFM_ACTIVE)) !=
|
|
(IFM_AVALID | IFM_ACTIVE))
|
|
return;
|
|
|
|
if (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T &&
|
|
sc->flags & FXP_FLAG_CU_RESUME_BUG)
|
|
sc->cu_resume_bug = 1;
|
|
else
|
|
sc->cu_resume_bug = 0;
|
|
/*
|
|
* Call fxp_init_body in order to adjust the flow control settings.
|
|
* Note that the 82557 doesn't support hardware flow control.
|
|
*/
|
|
if (sc->revision == FXP_REV_82557)
|
|
return;
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
|
|
fxp_init_body(sc, 0);
|
|
}
|
|
|
|
static int
|
|
fxp_ioctl(if_t ifp, u_long command, caddr_t data)
|
|
{
|
|
struct fxp_softc *sc = if_getsoftc(ifp);
|
|
struct ifreq *ifr = (struct ifreq *)data;
|
|
struct mii_data *mii;
|
|
int flag, mask, error = 0, reinit;
|
|
|
|
switch (command) {
|
|
case SIOCSIFFLAGS:
|
|
FXP_LOCK(sc);
|
|
/*
|
|
* If interface is marked up and not running, then start it.
|
|
* If it is marked down and running, stop it.
|
|
* XXX If it's up then re-initialize it. This is so flags
|
|
* such as IFF_PROMISC are handled.
|
|
*/
|
|
if (if_getflags(ifp) & IFF_UP) {
|
|
if (((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) &&
|
|
((if_getflags(ifp) ^ sc->if_flags) &
|
|
(IFF_PROMISC | IFF_ALLMULTI | IFF_LINK0)) != 0) {
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
|
|
fxp_init_body(sc, 0);
|
|
} else if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
|
|
fxp_init_body(sc, 1);
|
|
} else {
|
|
if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0)
|
|
fxp_stop(sc);
|
|
}
|
|
sc->if_flags = if_getflags(ifp);
|
|
FXP_UNLOCK(sc);
|
|
break;
|
|
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
FXP_LOCK(sc);
|
|
if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) {
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
|
|
fxp_init_body(sc, 0);
|
|
}
|
|
FXP_UNLOCK(sc);
|
|
break;
|
|
|
|
case SIOCSIFMEDIA:
|
|
case SIOCGIFMEDIA:
|
|
if (sc->miibus != NULL) {
|
|
mii = device_get_softc(sc->miibus);
|
|
error = ifmedia_ioctl(ifp, ifr,
|
|
&mii->mii_media, command);
|
|
} else {
|
|
error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, command);
|
|
}
|
|
break;
|
|
|
|
case SIOCSIFCAP:
|
|
reinit = 0;
|
|
mask = if_getcapenable(ifp) ^ ifr->ifr_reqcap;
|
|
#ifdef DEVICE_POLLING
|
|
if (mask & IFCAP_POLLING) {
|
|
if (ifr->ifr_reqcap & IFCAP_POLLING) {
|
|
error = ether_poll_register(fxp_poll, ifp);
|
|
if (error)
|
|
return(error);
|
|
FXP_LOCK(sc);
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL,
|
|
FXP_SCB_INTR_DISABLE);
|
|
if_setcapenablebit(ifp, IFCAP_POLLING, 0);
|
|
FXP_UNLOCK(sc);
|
|
} else {
|
|
error = ether_poll_deregister(ifp);
|
|
/* Enable interrupts in any case */
|
|
FXP_LOCK(sc);
|
|
CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, 0);
|
|
if_setcapenablebit(ifp, 0, IFCAP_POLLING);
|
|
FXP_UNLOCK(sc);
|
|
}
|
|
}
|
|
#endif
|
|
FXP_LOCK(sc);
|
|
if ((mask & IFCAP_TXCSUM) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_TXCSUM) != 0) {
|
|
if_togglecapenable(ifp, IFCAP_TXCSUM);
|
|
if ((if_getcapenable(ifp) & IFCAP_TXCSUM) != 0)
|
|
if_sethwassistbits(ifp, FXP_CSUM_FEATURES, 0);
|
|
else
|
|
if_sethwassistbits(ifp, 0, FXP_CSUM_FEATURES);
|
|
}
|
|
if ((mask & IFCAP_RXCSUM) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_RXCSUM) != 0) {
|
|
if_togglecapenable(ifp, IFCAP_RXCSUM);
|
|
if ((sc->flags & FXP_FLAG_82559_RXCSUM) != 0)
|
|
reinit++;
|
|
}
|
|
if ((mask & IFCAP_TSO4) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_TSO4) != 0) {
|
|
if_togglecapenable(ifp, IFCAP_TSO4);
|
|
if ((if_getcapenable(ifp) & IFCAP_TSO4) != 0)
|
|
if_sethwassistbits(ifp, CSUM_TSO, 0);
|
|
else
|
|
if_sethwassistbits(ifp, 0, CSUM_TSO);
|
|
}
|
|
if ((mask & IFCAP_WOL_MAGIC) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_WOL_MAGIC) != 0)
|
|
if_togglecapenable(ifp, IFCAP_WOL_MAGIC);
|
|
if ((mask & IFCAP_VLAN_MTU) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_VLAN_MTU) != 0) {
|
|
if_togglecapenable(ifp, IFCAP_VLAN_MTU);
|
|
if (sc->revision != FXP_REV_82557)
|
|
flag = FXP_FLAG_LONG_PKT_EN;
|
|
else /* a hack to get long frames on the old chip */
|
|
flag = FXP_FLAG_SAVE_BAD;
|
|
sc->flags ^= flag;
|
|
if (if_getflags(ifp) & IFF_UP)
|
|
reinit++;
|
|
}
|
|
if ((mask & IFCAP_VLAN_HWCSUM) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_VLAN_HWCSUM) != 0)
|
|
if_togglecapenable(ifp, IFCAP_VLAN_HWCSUM);
|
|
if ((mask & IFCAP_VLAN_HWTSO) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_VLAN_HWTSO) != 0)
|
|
if_togglecapenable(ifp, IFCAP_VLAN_HWTSO);
|
|
if ((mask & IFCAP_VLAN_HWTAGGING) != 0 &&
|
|
(if_getcapabilities(ifp) & IFCAP_VLAN_HWTAGGING) != 0) {
|
|
if_togglecapenable(ifp, IFCAP_VLAN_HWTAGGING);
|
|
if ((if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) == 0)
|
|
if_setcapenablebit(ifp, 0, IFCAP_VLAN_HWTSO |
|
|
IFCAP_VLAN_HWCSUM);
|
|
reinit++;
|
|
}
|
|
if (reinit > 0 &&
|
|
(if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) {
|
|
if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
|
|
fxp_init_body(sc, 0);
|
|
}
|
|
FXP_UNLOCK(sc);
|
|
if_vlancap(ifp);
|
|
break;
|
|
|
|
default:
|
|
error = ether_ioctl(ifp, command, data);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Fill in the multicast address list and return number of entries.
|
|
*/
|
|
static int
|
|
fxp_mc_addrs(struct fxp_softc *sc)
|
|
{
|
|
struct fxp_cb_mcs *mcsp = sc->mcsp;
|
|
if_t ifp = sc->ifp;
|
|
int nmcasts = 0;
|
|
|
|
if ((if_getflags(ifp) & IFF_ALLMULTI) == 0) {
|
|
if_maddr_rlock(ifp);
|
|
if_setupmultiaddr(ifp, mcsp->mc_addr, &nmcasts, MAXMCADDR);
|
|
if (nmcasts >= MAXMCADDR) {
|
|
if_setflagbits(ifp, IFF_ALLMULTI, 0);
|
|
nmcasts = 0;
|
|
}
|
|
if_maddr_runlock(ifp);
|
|
}
|
|
mcsp->mc_cnt = htole16(nmcasts * ETHER_ADDR_LEN);
|
|
return (nmcasts);
|
|
}
|
|
|
|
/*
|
|
* Program the multicast filter.
|
|
*
|
|
* We have an artificial restriction that the multicast setup command
|
|
* must be the first command in the chain, so we take steps to ensure
|
|
* this. By requiring this, it allows us to keep up the performance of
|
|
* the pre-initialized command ring (esp. link pointers) by not actually
|
|
* inserting the mcsetup command in the ring - i.e. its link pointer
|
|
* points to the TxCB ring, but the mcsetup descriptor itself is not part
|
|
* of it. We then can do 'CU_START' on the mcsetup descriptor and have it
|
|
* lead into the regular TxCB ring when it completes.
|
|
*/
|
|
static void
|
|
fxp_mc_setup(struct fxp_softc *sc)
|
|
{
|
|
struct fxp_cb_mcs *mcsp;
|
|
int count;
|
|
|
|
FXP_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
mcsp = sc->mcsp;
|
|
mcsp->cb_status = 0;
|
|
mcsp->cb_command = htole16(FXP_CB_COMMAND_MCAS | FXP_CB_COMMAND_EL);
|
|
mcsp->link_addr = 0xffffffff;
|
|
fxp_mc_addrs(sc);
|
|
|
|
/*
|
|
* Wait until command unit is idle. This should never be the
|
|
* case when nothing is queued, but make sure anyway.
|
|
*/
|
|
count = 100;
|
|
while ((CSR_READ_1(sc, FXP_CSR_SCB_RUSCUS) >> 6) !=
|
|
FXP_SCB_CUS_IDLE && --count)
|
|
DELAY(10);
|
|
if (count == 0) {
|
|
device_printf(sc->dev, "command queue timeout\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Start the multicast setup command.
|
|
*/
|
|
fxp_scb_wait(sc);
|
|
bus_dmamap_sync(sc->mcs_tag, sc->mcs_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, sc->mcs_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START);
|
|
/* ...and wait for it to complete. */
|
|
fxp_dma_wait(sc, &mcsp->cb_status, sc->mcs_tag, sc->mcs_map);
|
|
}
|
|
|
|
static uint32_t fxp_ucode_d101a[] = D101_A_RCVBUNDLE_UCODE;
|
|
static uint32_t fxp_ucode_d101b0[] = D101_B0_RCVBUNDLE_UCODE;
|
|
static uint32_t fxp_ucode_d101ma[] = D101M_B_RCVBUNDLE_UCODE;
|
|
static uint32_t fxp_ucode_d101s[] = D101S_RCVBUNDLE_UCODE;
|
|
static uint32_t fxp_ucode_d102[] = D102_B_RCVBUNDLE_UCODE;
|
|
static uint32_t fxp_ucode_d102c[] = D102_C_RCVBUNDLE_UCODE;
|
|
static uint32_t fxp_ucode_d102e[] = D102_E_RCVBUNDLE_UCODE;
|
|
|
|
#define UCODE(x) x, sizeof(x)/sizeof(uint32_t)
|
|
|
|
static const struct ucode {
|
|
uint32_t revision;
|
|
uint32_t *ucode;
|
|
int length;
|
|
u_short int_delay_offset;
|
|
u_short bundle_max_offset;
|
|
} ucode_table[] = {
|
|
{ FXP_REV_82558_A4, UCODE(fxp_ucode_d101a), D101_CPUSAVER_DWORD, 0 },
|
|
{ FXP_REV_82558_B0, UCODE(fxp_ucode_d101b0), D101_CPUSAVER_DWORD, 0 },
|
|
{ FXP_REV_82559_A0, UCODE(fxp_ucode_d101ma),
|
|
D101M_CPUSAVER_DWORD, D101M_CPUSAVER_BUNDLE_MAX_DWORD },
|
|
{ FXP_REV_82559S_A, UCODE(fxp_ucode_d101s),
|
|
D101S_CPUSAVER_DWORD, D101S_CPUSAVER_BUNDLE_MAX_DWORD },
|
|
{ FXP_REV_82550, UCODE(fxp_ucode_d102),
|
|
D102_B_CPUSAVER_DWORD, D102_B_CPUSAVER_BUNDLE_MAX_DWORD },
|
|
{ FXP_REV_82550_C, UCODE(fxp_ucode_d102c),
|
|
D102_C_CPUSAVER_DWORD, D102_C_CPUSAVER_BUNDLE_MAX_DWORD },
|
|
{ FXP_REV_82551_F, UCODE(fxp_ucode_d102e),
|
|
D102_E_CPUSAVER_DWORD, D102_E_CPUSAVER_BUNDLE_MAX_DWORD },
|
|
{ FXP_REV_82551_10, UCODE(fxp_ucode_d102e),
|
|
D102_E_CPUSAVER_DWORD, D102_E_CPUSAVER_BUNDLE_MAX_DWORD },
|
|
{ 0, NULL, 0, 0, 0 }
|
|
};
|
|
|
|
static void
|
|
fxp_load_ucode(struct fxp_softc *sc)
|
|
{
|
|
const struct ucode *uc;
|
|
struct fxp_cb_ucode *cbp;
|
|
int i;
|
|
|
|
if (sc->flags & FXP_FLAG_NO_UCODE)
|
|
return;
|
|
|
|
for (uc = ucode_table; uc->ucode != NULL; uc++)
|
|
if (sc->revision == uc->revision)
|
|
break;
|
|
if (uc->ucode == NULL)
|
|
return;
|
|
cbp = (struct fxp_cb_ucode *)sc->fxp_desc.cbl_list;
|
|
cbp->cb_status = 0;
|
|
cbp->cb_command = htole16(FXP_CB_COMMAND_UCODE | FXP_CB_COMMAND_EL);
|
|
cbp->link_addr = 0xffffffff; /* (no) next command */
|
|
for (i = 0; i < uc->length; i++)
|
|
cbp->ucode[i] = htole32(uc->ucode[i]);
|
|
if (uc->int_delay_offset)
|
|
*(uint16_t *)&cbp->ucode[uc->int_delay_offset] =
|
|
htole16(sc->tunable_int_delay + sc->tunable_int_delay / 2);
|
|
if (uc->bundle_max_offset)
|
|
*(uint16_t *)&cbp->ucode[uc->bundle_max_offset] =
|
|
htole16(sc->tunable_bundle_max);
|
|
/*
|
|
* Download the ucode to the chip.
|
|
*/
|
|
fxp_scb_wait(sc);
|
|
bus_dmamap_sync(sc->cbl_tag, sc->cbl_map,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, sc->fxp_desc.cbl_addr);
|
|
fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START);
|
|
/* ...and wait for it to complete. */
|
|
fxp_dma_wait(sc, &cbp->cb_status, sc->cbl_tag, sc->cbl_map);
|
|
device_printf(sc->dev,
|
|
"Microcode loaded, int_delay: %d usec bundle_max: %d\n",
|
|
sc->tunable_int_delay,
|
|
uc->bundle_max_offset == 0 ? 0 : sc->tunable_bundle_max);
|
|
sc->flags |= FXP_FLAG_UCODE;
|
|
bzero(cbp, FXP_TXCB_SZ);
|
|
}
|
|
|
|
#define FXP_SYSCTL_STAT_ADD(c, h, n, p, d) \
|
|
SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
|
|
|
|
static void
|
|
fxp_sysctl_node(struct fxp_softc *sc)
|
|
{
|
|
struct sysctl_ctx_list *ctx;
|
|
struct sysctl_oid_list *child, *parent;
|
|
struct sysctl_oid *tree;
|
|
struct fxp_hwstats *hsp;
|
|
|
|
ctx = device_get_sysctl_ctx(sc->dev);
|
|
child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));
|
|
|
|
SYSCTL_ADD_PROC(ctx, child,
|
|
OID_AUTO, "int_delay", CTLTYPE_INT | CTLFLAG_RW,
|
|
&sc->tunable_int_delay, 0, sysctl_hw_fxp_int_delay, "I",
|
|
"FXP driver receive interrupt microcode bundling delay");
|
|
SYSCTL_ADD_PROC(ctx, child,
|
|
OID_AUTO, "bundle_max", CTLTYPE_INT | CTLFLAG_RW,
|
|
&sc->tunable_bundle_max, 0, sysctl_hw_fxp_bundle_max, "I",
|
|
"FXP driver receive interrupt microcode bundle size limit");
|
|
SYSCTL_ADD_INT(ctx, child,OID_AUTO, "rnr", CTLFLAG_RD, &sc->rnr, 0,
|
|
"FXP RNR events");
|
|
|
|
/*
|
|
* Pull in device tunables.
|
|
*/
|
|
sc->tunable_int_delay = TUNABLE_INT_DELAY;
|
|
sc->tunable_bundle_max = TUNABLE_BUNDLE_MAX;
|
|
(void) resource_int_value(device_get_name(sc->dev),
|
|
device_get_unit(sc->dev), "int_delay", &sc->tunable_int_delay);
|
|
(void) resource_int_value(device_get_name(sc->dev),
|
|
device_get_unit(sc->dev), "bundle_max", &sc->tunable_bundle_max);
|
|
sc->rnr = 0;
|
|
|
|
hsp = &sc->fxp_hwstats;
|
|
tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
|
|
NULL, "FXP statistics");
|
|
parent = SYSCTL_CHILDREN(tree);
|
|
|
|
/* Rx MAC statistics. */
|
|
tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
|
|
NULL, "Rx MAC statistics");
|
|
child = SYSCTL_CHILDREN(tree);
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "good_frames",
|
|
&hsp->rx_good, "Good frames");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "crc_errors",
|
|
&hsp->rx_crc_errors, "CRC errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "alignment_errors",
|
|
&hsp->rx_alignment_errors, "Alignment errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "rnr_errors",
|
|
&hsp->rx_rnr_errors, "RNR errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "overrun_errors",
|
|
&hsp->rx_overrun_errors, "Overrun errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "cdt_errors",
|
|
&hsp->rx_cdt_errors, "Collision detect errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "shortframes",
|
|
&hsp->rx_shortframes, "Short frame errors");
|
|
if (sc->revision >= FXP_REV_82558_A4) {
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "pause",
|
|
&hsp->rx_pause, "Pause frames");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "controls",
|
|
&hsp->rx_controls, "Unsupported control frames");
|
|
}
|
|
if (sc->revision >= FXP_REV_82559_A0)
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "tco",
|
|
&hsp->rx_tco, "TCO frames");
|
|
|
|
/* Tx MAC statistics. */
|
|
tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
|
|
NULL, "Tx MAC statistics");
|
|
child = SYSCTL_CHILDREN(tree);
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "good_frames",
|
|
&hsp->tx_good, "Good frames");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "maxcols",
|
|
&hsp->tx_maxcols, "Maximum collisions errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "latecols",
|
|
&hsp->tx_latecols, "Late collisions errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "underruns",
|
|
&hsp->tx_underruns, "Underrun errors");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "lostcrs",
|
|
&hsp->tx_lostcrs, "Lost carrier sense");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "deffered",
|
|
&hsp->tx_deffered, "Deferred");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "single_collisions",
|
|
&hsp->tx_single_collisions, "Single collisions");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "multiple_collisions",
|
|
&hsp->tx_multiple_collisions, "Multiple collisions");
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "total_collisions",
|
|
&hsp->tx_total_collisions, "Total collisions");
|
|
if (sc->revision >= FXP_REV_82558_A4)
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "pause",
|
|
&hsp->tx_pause, "Pause frames");
|
|
if (sc->revision >= FXP_REV_82559_A0)
|
|
FXP_SYSCTL_STAT_ADD(ctx, child, "tco",
|
|
&hsp->tx_tco, "TCO frames");
|
|
}
|
|
|
|
#undef FXP_SYSCTL_STAT_ADD
|
|
|
|
static int
|
|
sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high)
|
|
{
|
|
int error, value;
|
|
|
|
value = *(int *)arg1;
|
|
error = sysctl_handle_int(oidp, &value, 0, req);
|
|
if (error || !req->newptr)
|
|
return (error);
|
|
if (value < low || value > high)
|
|
return (EINVAL);
|
|
*(int *)arg1 = value;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Interrupt delay is expressed in microseconds, a multiplier is used
|
|
* to convert this to the appropriate clock ticks before using.
|
|
*/
|
|
static int
|
|
sysctl_hw_fxp_int_delay(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
|
|
return (sysctl_int_range(oidp, arg1, arg2, req, 300, 3000));
|
|
}
|
|
|
|
static int
|
|
sysctl_hw_fxp_bundle_max(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
|
|
return (sysctl_int_range(oidp, arg1, arg2, req, 1, 0xffff));
|
|
}
|