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authorJeff Garzik <jgarzik@pobox.com>2005-08-29 16:53:08 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-08-29 16:53:08 -0400
commit39fbe47377062200acc26ea0ccef223b4399a82c (patch)
treef814fd07700893cda1822128098150e45dd758c9
parentcfc4692825ea4d932b94c0ec791f2f01d055b79f (diff)
parentc1b054d03f5b31c33eaa0b267c629b118eaf3790 (diff)
/spare/repo/netdev-2.6 branch 'chelsio'
Diffstat
-rw-r--r--Documentation/networking/cxgb.txt352
-rw-r--r--drivers/net/Kconfig19
-rw-r--r--drivers/net/Makefile1
-rw-r--r--drivers/net/chelsio/Makefile11
-rw-r--r--drivers/net/chelsio/common.h314
-rw-r--r--drivers/net/chelsio/cphy.h148
-rw-r--r--drivers/net/chelsio/cpl5_cmd.h145
-rw-r--r--drivers/net/chelsio/cxgb2.c1256
-rw-r--r--drivers/net/chelsio/elmer0.h151
-rw-r--r--drivers/net/chelsio/espi.c346
-rw-r--r--drivers/net/chelsio/espi.h68
-rw-r--r--drivers/net/chelsio/gmac.h134
-rw-r--r--drivers/net/chelsio/mv88x201x.c252
-rw-r--r--drivers/net/chelsio/pm3393.c826
-rw-r--r--drivers/net/chelsio/regs.h468
-rw-r--r--drivers/net/chelsio/sge.c1684
-rw-r--r--drivers/net/chelsio/sge.h105
-rw-r--r--drivers/net/chelsio/subr.c812
-rw-r--r--drivers/net/chelsio/suni1x10gexp_regs.h213
-rw-r--r--include/linux/pci_ids.h1
20 files changed, 7306 insertions, 0 deletions
diff --git a/Documentation/networking/cxgb.txt b/Documentation/networking/cxgb.txt
new file mode 100644
index 00000000000..76324638626
--- /dev/null
+++ b/Documentation/networking/cxgb.txt
@@ -0,0 +1,352 @@
+ Chelsio N210 10Gb Ethernet Network Controller
+
+ Driver Release Notes for Linux
+
+ Version 2.1.1
+
+ June 20, 2005
+
+CONTENTS
+========
+ INTRODUCTION
+ FEATURES
+ PERFORMANCE
+ DRIVER MESSAGES
+ KNOWN ISSUES
+ SUPPORT
+
+
+INTRODUCTION
+============
+
+ This document describes the Linux driver for Chelsio 10Gb Ethernet Network
+ Controller. This driver supports the Chelsio N210 NIC and is backward
+ compatible with the Chelsio N110 model 10Gb NICs.
+
+
+FEATURES
+========
+
+ Adaptive Interrupts (adaptive-rx)
+ ---------------------------------
+
+ This feature provides an adaptive algorithm that adjusts the interrupt
+ coalescing parameters, allowing the driver to dynamically adapt the latency
+ settings to achieve the highest performance during various types of network
+ load.
+
+ The interface used to control this feature is ethtool. Please see the
+ ethtool manpage for additional usage information.
+
+ By default, adaptive-rx is disabled.
+ To enable adaptive-rx:
+
+ ethtool -C <interface> adaptive-rx on
+
+ To disable adaptive-rx, use ethtool:
+
+ ethtool -C <interface> adaptive-rx off
+
+ After disabling adaptive-rx, the timer latency value will be set to 50us.
+ You may set the timer latency after disabling adaptive-rx:
+
+ ethtool -C <interface> rx-usecs <microseconds>
+
+ An example to set the timer latency value to 100us on eth0:
+
+ ethtool -C eth0 rx-usecs 100
+
+ You may also provide a timer latency value while disabling adpative-rx:
+
+ ethtool -C <interface> adaptive-rx off rx-usecs <microseconds>
+
+ If adaptive-rx is disabled and a timer latency value is specified, the timer
+ will be set to the specified value until changed by the user or until
+ adaptive-rx is enabled.
+
+ To view the status of the adaptive-rx and timer latency values:
+
+ ethtool -c <interface>
+
+
+ TCP Segmentation Offloading (TSO) Support
+ -----------------------------------------
+
+ This feature, also known as "large send", enables a system's protocol stack
+ to offload portions of outbound TCP processing to a network interface card
+ thereby reducing system CPU utilization and enhancing performance.
+
+ The interface used to control this feature is ethtool version 1.8 or higher.
+ Please see the ethtool manpage for additional usage information.
+
+ By default, TSO is enabled.
+ To disable TSO:
+
+ ethtool -K <interface> tso off
+
+ To enable TSO:
+
+ ethtool -K <interface> tso on
+
+ To view the status of TSO:
+
+ ethtool -k <interface>
+
+
+PERFORMANCE
+===========
+
+ The following information is provided as an example of how to change system
+ parameters for "performance tuning" an what value to use. You may or may not
+ want to change these system parameters, depending on your server/workstation
+ application. Doing so is not warranted in any way by Chelsio Communications,
+ and is done at "YOUR OWN RISK". Chelsio will not be held responsible for loss
+ of data or damage to equipment.
+
+ Your distribution may have a different way of doing things, or you may prefer
+ a different method. These commands are shown only to provide an example of
+ what to do and are by no means definitive.
+
+ Making any of the following system changes will only last until you reboot
+ your system. You may want to write a script that runs at boot-up which
+ includes the optimal settings for your system.
+
+ Setting PCI Latency Timer:
+ setpci -d 1425:* 0x0c.l=0x0000F800
+
+ Disabling TCP timestamp:
+ sysctl -w net.ipv4.tcp_timestamps=0
+
+ Disabling SACK:
+ sysctl -w net.ipv4.tcp_sack=0
+
+ Setting large number of incoming connection requests:
+ sysctl -w net.ipv4.tcp_max_syn_backlog=3000
+
+ Setting maximum receive socket buffer size:
+ sysctl -w net.core.rmem_max=1024000
+
+ Setting maximum send socket buffer size:
+ sysctl -w net.core.wmem_max=1024000
+
+ Set smp_affinity (on a multiprocessor system) to a single CPU:
+ echo 1 > /proc/irq/<interrupt_number>/smp_affinity
+
+ Setting default receive socket buffer size:
+ sysctl -w net.core.rmem_default=524287
+
+ Setting default send socket buffer size:
+ sysctl -w net.core.wmem_default=524287
+
+ Setting maximum option memory buffers:
+ sysctl -w net.core.optmem_max=524287
+
+ Setting maximum backlog (# of unprocessed packets before kernel drops):
+ sysctl -w net.core.netdev_max_backlog=300000
+
+ Setting TCP read buffers (min/default/max):
+ sysctl -w net.ipv4.tcp_rmem="10000000 10000000 10000000"
+
+ Setting TCP write buffers (min/pressure/max):
+ sysctl -w net.ipv4.tcp_wmem="10000000 10000000 10000000"
+
+ Setting TCP buffer space (min/pressure/max):
+ sysctl -w net.ipv4.tcp_mem="10000000 10000000 10000000"
+
+ TCP window size for single connections:
+ The receive buffer (RX_WINDOW) size must be at least as large as the
+ Bandwidth-Delay Product of the communication link between the sender and
+ receiver. Due to the variations of RTT, you may want to increase the buffer
+ size up to 2 times the Bandwidth-Delay Product. Reference page 289 of
+ "TCP/IP Illustrated, Volume 1, The Protocols" by W. Richard Stevens.
+ At 10Gb speeds, use the following formula:
+ RX_WINDOW >= 1.25MBytes * RTT(in milliseconds)
+ Example for RTT with 100us: RX_WINDOW = (1,250,000 * 0.1) = 125,000
+ RX_WINDOW sizes of 256KB - 512KB should be sufficient.
+ Setting the min, max, and default receive buffer (RX_WINDOW) size:
+ sysctl -w net.ipv4.tcp_rmem="<min> <default> <max>"
+
+ TCP window size for multiple connections:
+ The receive buffer (RX_WINDOW) size may be calculated the same as single
+ connections, but should be divided by the number of connections. The
+ smaller window prevents congestion and facilitates better pacing,
+ especially if/when MAC level flow control does not work well or when it is
+ not supported on the machine. Experimentation may be necessary to attain
+ the correct value. This method is provided as a starting point fot the
+ correct receive buffer size.
+ Setting the min, max, and default receive buffer (RX_WINDOW) size is
+ performed in the same manner as single connection.
+
+
+DRIVER MESSAGES
+===============
+
+ The following messages are the most common messages logged by syslog. These
+ may be found in /var/log/messages.
+
+ Driver up:
+ Chelsio Network Driver - version 2.1.1
+
+ NIC detected:
+ eth#: Chelsio N210 1x10GBaseX NIC (rev #), PCIX 133MHz/64-bit
+
+ Link up:
+ eth#: link is up at 10 Gbps, full duplex
+
+ Link down:
+ eth#: link is down
+
+
+KNOWN ISSUES
+============
+
+ These issues have been identified during testing. The following information
+ is provided as a workaround to the problem. In some cases, this problem is
+ inherent to Linux or to a particular Linux Distribution and/or hardware
+ platform.
+
+ 1. Large number of TCP retransmits on a multiprocessor (SMP) system.
+
+ On a system with multiple CPUs, the interrupt (IRQ) for the network
+ controller may be bound to more than one CPU. This will cause TCP
+ retransmits if the packet data were to be split across different CPUs
+ and re-assembled in a different order than expected.
+
+ To eliminate the TCP retransmits, set smp_affinity on the particular
+ interrupt to a single CPU. You can locate the interrupt (IRQ) used on
+ the N110/N210 by using ifconfig:
+ ifconfig <dev_name> | grep Interrupt
+ Set the smp_affinity to a single CPU:
+ echo 1 > /proc/irq/<interrupt_number>/smp_affinity
+
+ It is highly suggested that you do not run the irqbalance daemon on your
+ system, as this will change any smp_affinity setting you have applied.
+ The irqbalance daemon runs on a 10 second interval and binds interrupts
+ to the least loaded CPU determined by the daemon. To disable this daemon:
+ chkconfig --level 2345 irqbalance off
+
+ By default, some Linux distributions enable the kernel feature,
+ irqbalance, which performs the same function as the daemon. To disable
+ this feature, add the following line to your bootloader:
+ noirqbalance
+
+ Example using the Grub bootloader:
+ title Red Hat Enterprise Linux AS (2.4.21-27.ELsmp)
+ root (hd0,0)
+ kernel /vmlinuz-2.4.21-27.ELsmp ro root=/dev/hda3 noirqbalance
+ initrd /initrd-2.4.21-27.ELsmp.img
+
+ 2. After running insmod, the driver is loaded and the incorrect network
+ interface is brought up without running ifup.
+
+ When using 2.4.x kernels, including RHEL kernels, the Linux kernel
+ invokes a script named "hotplug". This script is primarily used to
+ automatically bring up USB devices when they are plugged in, however,
+ the script also attempts to automatically bring up a network interface
+ after loading the kernel module. The hotplug script does this by scanning
+ the ifcfg-eth# config files in /etc/sysconfig/network-scripts, looking
+ for HWADDR=<mac_address>.
+
+ If the hotplug script does not find the HWADDRR within any of the
+ ifcfg-eth# files, it will bring up the device with the next available
+ interface name. If this interface is already configured for a different
+ network card, your new interface will have incorrect IP address and
+ network settings.
+
+ To solve this issue, you can add the HWADDR=<mac_address> key to the
+ interface config file of your network controller.
+
+ To disable this "hotplug" feature, you may add the driver (module name)
+ to the "blacklist" file located in /etc/hotplug. It has been noted that
+ this does not work for network devices because the net.agent script
+ does not use the blacklist file. Simply remove, or rename, the net.agent
+ script located in /etc/hotplug to disable this feature.
+
+ 3. Transport Protocol (TP) hangs when running heavy multi-connection traffic
+ on an AMD Opteron system with HyperTransport PCI-X Tunnel chipset.
+
+ If your AMD Opteron system uses the AMD-8131 HyperTransport PCI-X Tunnel
+ chipset, you may experience the "133-Mhz Mode Split Completion Data
+ Corruption" bug identified by AMD while using a 133Mhz PCI-X card on the
+ bus PCI-X bus.
+
+ AMD states, "Under highly specific conditions, the AMD-8131 PCI-X Tunnel
+ can provide stale data via split completion cycles to a PCI-X card that
+ is operating at 133 Mhz", causing data corruption.
+
+ AMD's provides three workarounds for this problem, however, Chelsio
+ recommends the first option for best performance with this bug:
+
+ For 133Mhz secondary bus operation, limit the transaction length and
+ the number of outstanding transactions, via BIOS configuration
+ programming of the PCI-X card, to the following:
+
+ Data Length (bytes): 1k
+ Total allowed outstanding transactions: 2
+
+ Please refer to AMD 8131-HT/PCI-X Errata 26310 Rev 3.08 August 2004,
+ section 56, "133-MHz Mode Split Completion Data Corruption" for more
+ details with this bug and workarounds suggested by AMD.
+
+ It may be possible to work outside AMD's recommended PCI-X settings, try
+ increasing the Data Length to 2k bytes for increased performance. If you
+ have issues with these settings, please revert to the "safe" settings
+ and duplicate the problem before submitting a bug or asking for support.
+
+ NOTE: The default setting on most systems is 8 outstanding transactions
+ and 2k bytes data length.
+
+ 4. On multiprocessor systems, it has been noted that an application which
+ is handling 10Gb networking can switch between CPUs causing degraded
+ and/or unstable performance.
+
+ If running on an SMP system and taking performance measurements, it
+ is suggested you either run the latest netperf-2.4.0+ or use a binding
+ tool such as Tim Hockin's procstate utilities (runon)
+ <http://www.hockin.org/~thockin/procstate/>.
+
+ Binding netserver and netperf (or other applications) to particular
+ CPUs will have a significant difference in performance measurements.
+ You may need to experiment which CPU to bind the application to in
+ order to achieve the best performance for your system.
+
+ If you are developing an application designed for 10Gb networking,
+ please keep in mind you may want to look at kernel functions
+ sched_setaffinity & sched_getaffinity to bind your application.
+
+ If you are just running user-space applications such as ftp, telnet,
+ etc., you may want to try the runon tool provided by Tim Hockin's
+ procstate utility. You could also try binding the interface to a
+ particular CPU: runon 0 ifup eth0
+
+
+SUPPORT
+=======
+
+ If you have problems with the software or hardware, please contact our
+ customer support team via email at support@chelsio.com or check our website
+ at http://www.chelsio.com
+
+===============================================================================
+
+ Chelsio Communications
+ 370 San Aleso Ave.
+ Suite 100
+ Sunnyvale, CA 94085
+ http://www.chelsio.com
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License, version 2, as
+published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+ Copyright (c) 2003-2005 Chelsio Communications. All rights reserved.
+
+===============================================================================
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 43d14bfb101..e0239a10d32 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2104,6 +2104,25 @@ endmenu
menu "Ethernet (10000 Mbit)"
depends on !UML
+config CHELSIO_T1
+ tristate "Chelsio 10Gb Ethernet support"
+ depends on PCI
+ help
+ This driver supports Chelsio N110 and N210 models 10Gb Ethernet
+ cards. More information about adapter features and performance
+ tuning is in <file:Documentation/networking/cxgb.txt>.
+
+ For general information about Chelsio and our products, visit
+ our website at <http://www.chelsio.com>.
+
+ For customer support, please visit our customer support page at
+ <http://www.chelsio.com/support.htm>.
+
+ Please send feedback to <linux-bugs@chelsio.com>.
+
+ To compile this driver as a module, choose M here: the module
+ will be called cxgb.
+
config IXGB
tristate "Intel(R) PRO/10GbE support"
depends on PCI
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index c5c71d70758..5baafcd5561 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -9,6 +9,7 @@ endif
obj-$(CONFIG_E1000) += e1000/
obj-$(CONFIG_IBM_EMAC) += ibm_emac/
obj-$(CONFIG_IXGB) += ixgb/
+obj-$(CONFIG_CHELSIO_T1) += chelsio/
obj-$(CONFIG_BONDING) += bonding/
obj-$(CONFIG_GIANFAR) += gianfar_driver.o
diff --git a/drivers/net/chelsio/Makefile b/drivers/net/chelsio/Makefile
new file mode 100644
index 00000000000..91e927827c4
--- /dev/null
+++ b/drivers/net/chelsio/Makefile
@@ -0,0 +1,11 @@
+#
+# Chelsio 10Gb NIC driver for Linux.
+#
+
+obj-$(CONFIG_CHELSIO_T1) += cxgb.o
+
+EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/chelsio $(DEBUG_FLAGS)
+
+
+cxgb-objs := cxgb2.o espi.o pm3393.o sge.o subr.o mv88x201x.o
+
diff --git a/drivers/net/chelsio/common.h b/drivers/net/chelsio/common.h
new file mode 100644
index 00000000000..f09348802b4
--- /dev/null
+++ b/drivers/net/chelsio/common.h
@@ -0,0 +1,314 @@
+/*****************************************************************************
+ * *
+ * File: common.h *
+ * $Revision: 1.21 $ *
+ * $Date: 2005/06/22 00:43:25 $ *
+ * Description: *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_COMMON_H_
+#define _CXGB_COMMON_H_
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/crc32.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/pci_ids.h>
+
+#define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
+#define DRV_NAME "cxgb"
+#define DRV_VERSION "2.1.1"
+#define PFX DRV_NAME ": "
+
+#define CH_ERR(fmt, ...) printk(KERN_ERR PFX fmt, ## __VA_ARGS__)
+#define CH_WARN(fmt, ...) printk(KERN_WARNING PFX fmt, ## __VA_ARGS__)
+#define CH_ALERT(fmt, ...) printk(KERN_ALERT PFX fmt, ## __VA_ARGS__)
+
+#define CH_DEVICE(devid, ssid, idx) \
+ { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
+
+#define SUPPORTED_PAUSE (1 << 13)
+#define SUPPORTED_LOOPBACK (1 << 15)
+
+#define ADVERTISED_PAUSE (1 << 13)
+#define ADVERTISED_ASYM_PAUSE (1 << 14)
+
+typedef struct adapter adapter_t;
+
+void t1_elmer0_ext_intr(adapter_t *adapter);
+void t1_link_changed(adapter_t *adapter, int port_id, int link_status,
+ int speed, int duplex, int fc);
+
+struct t1_rx_mode {
+ struct net_device *dev;
+ u32 idx;
+ struct dev_mc_list *list;
+};
+
+#define t1_rx_mode_promisc(rm) (rm->dev->flags & IFF_PROMISC)
+#define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI)
+#define t1_rx_mode_mc_cnt(rm) (rm->dev->mc_count)
+
+static inline u8 *t1_get_next_mcaddr(struct t1_rx_mode *rm)
+{
+ u8 *addr = 0;
+
+ if (rm->idx++ < rm->dev->mc_count) {
+ addr = rm->list->dmi_addr;
+ rm->list = rm->list->next;
+ }
+ return addr;
+}
+
+#define MAX_NPORTS 4
+
+#define SPEED_INVALID 0xffff
+#define DUPLEX_INVALID 0xff
+
+enum {
+ CHBT_BOARD_N110,
+ CHBT_BOARD_N210
+};
+
+enum {
+ CHBT_TERM_T1,
+ CHBT_TERM_T2
+};
+
+enum {
+ CHBT_MAC_PM3393,
+};
+
+enum {
+ CHBT_PHY_88X2010,
+};
+
+enum {
+ PAUSE_RX = 1 << 0,
+ PAUSE_TX = 1 << 1,
+ PAUSE_AUTONEG = 1 << 2
+};
+
+/* Revisions of T1 chip */
+enum {
+ TERM_T1A = 0,
+ TERM_T1B = 1,
+ TERM_T2 = 3
+};
+
+struct sge_params {
+ unsigned int cmdQ_size[2];
+ unsigned int freelQ_size[2];
+ unsigned int large_buf_capacity;
+ unsigned int rx_coalesce_usecs;
+ unsigned int last_rx_coalesce_raw;
+ unsigned int default_rx_coalesce_usecs;
+ unsigned int sample_interval_usecs;
+ unsigned int coalesce_enable;
+ unsigned int polling;
+};
+
+struct chelsio_pci_params {
+ unsigned short speed;
+ unsigned char width;
+ unsigned char is_pcix;
+};
+
+struct adapter_params {
+ struct sge_params sge;
+ struct chelsio_pci_params pci;
+
+ const struct board_info *brd_info;
+
+ unsigned int nports; /* # of ethernet ports */
+ unsigned int stats_update_period;
+ unsigned short chip_revision;
+ unsigned char chip_version;
+};
+
+struct link_config {
+ unsigned int supported; /* link capabilities */
+ unsigned int advertising; /* advertised capabilities */
+ unsigned short requested_speed; /* speed user has requested */
+ unsigned short speed; /* actual link speed */
+ unsigned char requested_duplex; /* duplex user has requested */
+ unsigned char duplex; /* actual link duplex */
+ unsigned char requested_fc; /* flow control user has requested */
+ unsigned char fc; /* actual link flow control */
+ unsigned char autoneg; /* autonegotiating? */
+};
+
+struct cmac;
+struct cphy;
+
+struct port_info {
+ struct net_device *dev;
+ struct cmac *mac;
+ struct cphy *phy;
+ struct link_config link_config;
+ struct net_device_stats netstats;
+};
+
+struct sge;
+struct peespi;
+
+struct adapter {
+ u8 *regs;
+ struct pci_dev *pdev;
+ unsigned long registered_device_map;
+ unsigned long open_device_map;
+ unsigned long flags;
+
+ const char *name;
+ int msg_enable;
+ u32 mmio_len;
+
+ struct work_struct ext_intr_handler_task;
+ struct adapter_params params;
+
+ struct vlan_group *vlan_grp;
+
+ /* Terminator modules. */
+ struct sge *sge;
+ struct peespi *espi;
+
+ struct port_info port[MAX_NPORTS];
+ struct work_struct stats_update_task;
+ struct timer_list stats_update_timer;
+
+ struct semaphore mib_mutex;
+ spinlock_t tpi_lock;
+ spinlock_t work_lock;
+ /* guards async operations */
+ spinlock_t async_lock ____cacheline_aligned;
+ u32 slow_intr_mask;
+};
+
+enum { /* adapter flags */
+ FULL_INIT_DONE = 1 << 0,
+ TSO_CAPABLE = 1 << 2,
+ TCP_CSUM_CAPABLE = 1 << 3,
+ UDP_CSUM_CAPABLE = 1 << 4,
+ VLAN_ACCEL_CAPABLE = 1 << 5,
+ RX_CSUM_ENABLED = 1 << 6,
+};
+
+struct mdio_ops;
+struct gmac;
+struct gphy;
+
+struct board_info {
+ unsigned char board;
+ unsigned char port_number;
+ unsigned long caps;
+ unsigned char chip_term;
+ unsigned char chip_mac;
+ unsigned char chip_phy;
+ unsigned int clock_core;
+ unsigned int clock_mc3;
+ unsigned int clock_mc4;
+ unsigned int espi_nports;
+ unsigned int clock_cspi;
+ unsigned int clock_elmer0;
+ unsigned char mdio_mdien;
+ unsigned char mdio_mdiinv;
+ unsigned char mdio_mdc;
+ unsigned char mdio_phybaseaddr;
+ struct gmac *gmac;
+ struct gphy *gphy;
+ struct mdio_ops *mdio_ops;
+ const char *desc;
+};
+
+extern struct pci_device_id t1_pci_tbl[];
+
+static inline int adapter_matches_type(const adapter_t *adapter,
+ int version, int revision)
+{
+ return adapter->params.chip_version == version &&
+ adapter->params.chip_revision == revision;
+}
+
+#define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
+#define is_T2(adap) adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
+
+/* Returns true if an adapter supports VLAN acceleration and TSO */
+static inline int vlan_tso_capable(const adapter_t *adapter)
+{
+ return !t1_is_T1B(adapter);
+}
+
+#define for_each_port(adapter, iter) \
+ for (iter = 0; iter < (adapter)->params.nports; ++iter)
+
+#define board_info(adapter) ((adapter)->params.brd_info)
+#define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
+
+static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
+{
+ return board_info(adap)->clock_core / 1000000;
+}
+
+extern int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
+extern int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
+
+extern void t1_interrupts_enable(adapter_t *adapter);
+extern void t1_interrupts_disable(adapter_t *adapter);
+extern void t1_interrupts_clear(adapter_t *adapter);
+extern int elmer0_ext_intr_handler(adapter_t *adapter);
+extern int t1_slow_intr_handler(adapter_t *adapter);
+
+extern int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
+extern const struct board_info *t1_get_board_info(unsigned int board_id);
+extern const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
+ unsigned short ssid);
+extern int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data);
+extern int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
+ struct adapter_params *p);
+extern int t1_init_hw_modules(adapter_t *adapter);
+extern int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
+extern void t1_free_sw_modules(adapter_t *adapter);
+extern void t1_fatal_err(adapter_t *adapter);
+
+extern void t1_tp_set_udp_checksum_offload(adapter_t *adapter, int enable);
+extern void t1_tp_set_tcp_checksum_offload(adapter_t *adapter, int enable);
+extern void t1_tp_set_ip_checksum_offload(adapter_t *adapter, int enable);
+
+#endif /* _CXGB_COMMON_H_ */
diff --git a/drivers/net/chelsio/cphy.h b/drivers/net/chelsio/cphy.h
new file mode 100644
index 00000000000..3412342f734
--- /dev/null
+++ b/drivers/net/chelsio/cphy.h
@@ -0,0 +1,148 @@
+/*****************************************************************************
+ * *
+ * File: cphy.h *
+ * $Revision: 1.7 $ *
+ * $Date: 2005/06/21 18:29:47 $ *
+ * Description: *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_CPHY_H_
+#define _CXGB_CPHY_H_
+
+#include "common.h"
+
+struct mdio_ops {
+ void (*init)(adapter_t *adapter, const struct board_info *bi);
+ int (*read)(adapter_t *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int *val);
+ int (*write)(adapter_t *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int val);
+};
+
+/* PHY interrupt types */
+enum {
+ cphy_cause_link_change = 0x1,
+ cphy_cause_error = 0x2
+};
+
+struct cphy;
+
+/* PHY operations */
+struct cphy_ops {
+ void (*destroy)(struct cphy *);
+ int (*reset)(struct cphy *, int wait);
+
+ int (*interrupt_enable)(struct cphy *);
+ int (*interrupt_disable)(struct cphy *);
+ int (*interrupt_clear)(struct cphy *);
+ int (*interrupt_handler)(struct cphy *);
+
+ int (*autoneg_enable)(struct cphy *);
+ int (*autoneg_disable)(struct cphy *);
+ int (*autoneg_restart)(struct cphy *);
+
+ int (*advertise)(struct cphy *phy, unsigned int advertise_map);
+ int (*set_loopback)(struct cphy *, int on);
+ int (*set_speed_duplex)(struct cphy *phy, int speed, int duplex);
+ int (*get_link_status)(struct cphy *phy, int *link_ok, int *speed,
+ int *duplex, int *fc);
+};
+
+/* A PHY instance */
+struct cphy {
+ int addr; /* PHY address */
+ adapter_t *adapter; /* associated adapter */
+ struct cphy_ops *ops; /* PHY operations */
+ int (*mdio_read)(adapter_t *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int *val);
+ int (*mdio_write)(adapter_t *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int val);
+ struct cphy_instance *instance;
+};
+
+/* Convenience MDIO read/write wrappers */
+static inline int mdio_read(struct cphy *cphy, int mmd, int reg,
+ unsigned int *valp)
+{
+ return cphy->mdio_read(cphy->adapter, cphy->addr, mmd, reg, valp);
+}
+
+static inline int mdio_write(struct cphy *cphy, int mmd, int reg,
+ unsigned int val)
+{
+ return cphy->mdio_write(cphy->adapter, cphy->addr, mmd, reg, val);
+}
+
+static inline int simple_mdio_read(struct cphy *cphy, int reg,
+ unsigned int *valp)
+{
+ return mdio_read(cphy, 0, reg, valp);
+}
+
+static inline int simple_mdio_write(struct cphy *cphy, int reg,
+ unsigned int val)
+{
+ return mdio_write(cphy, 0, reg, val);
+}
+
+/* Convenience initializer */
+static inline void cphy_init(struct cphy *phy, adapter_t *adapter,
+ int phy_addr, struct cphy_ops *phy_ops,
+ struct mdio_ops *mdio_ops)
+{
+ phy->adapter = adapter;
+ phy->addr = phy_addr;
+ phy->ops = phy_ops;
+ if (mdio_ops) {
+ phy->mdio_read = mdio_ops->read;
+ phy->mdio_write = mdio_ops->write;
+ }
+}
+
+/* Operations of the PHY-instance factory */
+struct gphy {
+ /* Construct a PHY instance with the given PHY address */
+ struct cphy *(*create)(adapter_t *adapter, int phy_addr,
+ struct mdio_ops *mdio_ops);
+
+ /*
+ * Reset the PHY chip. This resets the whole PHY chip, not individual
+ * ports.
+ */
+ int (*reset)(adapter_t *adapter);
+};
+
+extern struct gphy t1_mv88x201x_ops;
+extern struct gphy t1_dummy_phy_ops;
+
+#endif /* _CXGB_CPHY_H_ */
diff --git a/drivers/net/chelsio/cpl5_cmd.h b/drivers/net/chelsio/cpl5_cmd.h
new file mode 100644
index 00000000000..27925e487bc
--- /dev/null
+++ b/drivers/net/chelsio/cpl5_cmd.h
@@ -0,0 +1,145 @@
+/*****************************************************************************
+ * *
+ * File: cpl5_cmd.h *
+ * $Revision: 1.6 $ *
+ * $Date: 2005/06/21 18:29:47 $ *
+ * Description: *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_CPL5_CMD_H_
+#define _CXGB_CPL5_CMD_H_
+
+#include <asm/byteorder.h>
+
+#if !defined(__LITTLE_ENDIAN_BITFIELD) && !defined(__BIG_ENDIAN_BITFIELD)
+#error "Adjust your <asm/byteorder.h> defines"
+#endif
+
+enum CPL_opcode {
+ CPL_RX_PKT = 0xAD,
+ CPL_TX_PKT = 0xB2,
+ CPL_TX_PKT_LSO = 0xB6,
+};
+
+enum { /* TX_PKT_LSO ethernet types */
+ CPL_ETH_II,
+ CPL_ETH_II_VLAN,
+ CPL_ETH_802_3,
+ CPL_ETH_802_3_VLAN
+};
+
+struct cpl_rx_data {
+ u32 rsvd0;
+ u32 len;
+ u32 seq;
+ u16 urg;
+ u8 rsvd1;
+ u8 status;
+};
+
+/*
+ * We want this header's alignment to be no more stringent than 2-byte aligned.
+ * All fields are u8 or u16 except for the length. However that field is not
+ * used so we break it into 2 16-bit parts to easily meet our alignment needs.
+ */
+struct cpl_tx_pkt {
+ u8 opcode;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 iff:4;
+ u8 ip_csum_dis:1;
+ u8 l4_csum_dis:1;
+ u8 vlan_valid:1;
+ u8 rsvd:1;
+#else
+ u8 rsvd:1;
+ u8 vlan_valid:1;
+ u8 l4_csum_dis:1;
+ u8 ip_csum_dis:1;
+ u8 iff:4;
+#endif
+ u16 vlan;
+ u16 len_hi;
+ u16 len_lo;
+};
+
+struct cpl_tx_pkt_lso {
+ u8 opcode;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 iff:4;
+ u8 ip_csum_dis:1;
+ u8 l4_csum_dis:1;
+ u8 vlan_valid:1;
+ u8 rsvd:1;
+#else
+ u8 rsvd:1;
+ u8 vlan_valid:1;
+ u8 l4_csum_dis:1;
+ u8 ip_csum_dis:1;
+ u8 iff:4;
+#endif
+ u16 vlan;
+ u32 len;
+
+ u32 rsvd2;
+ u8 rsvd3;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 tcp_hdr_words:4;
+ u8 ip_hdr_words:4;
+#else
+ u8 ip_hdr_words:4;
+ u8 tcp_hdr_words:4;
+#endif
+ u16 eth_type_mss;
+};
+
+struct cpl_rx_pkt {
+ u8 opcode;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 iff:4;
+ u8 csum_valid:1;
+ u8 bad_pkt:1;
+ u8 vlan_valid:1;
+ u8 rsvd:1;
+#else
+ u8 rsvd:1;
+ u8 vlan_valid:1;
+ u8 bad_pkt:1;
+ u8 csum_valid:1;
+ u8 iff:4;
+#endif
+ u16 csum;
+ u16 vlan;
+ u16 len;
+};
+
+#endif /* _CXGB_CPL5_CMD_H_ */
diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c
new file mode 100644
index 00000000000..28ae478b386
--- /dev/null
+++ b/drivers/net/chelsio/cxgb2.c
@@ -0,0 +1,1256 @@
+/*****************************************************************************
+ * *
+ * File: cxgb2.c *
+ * $Revision: 1.25 $ *
+ * $Date: 2005/06/22 00:43:25 $ *
+ * Description: *
+ * Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#include "common.h"
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/mii.h>
+#include <linux/sockios.h>
+#include <linux/proc_fs.h>
+#include <linux/dma-mapping.h>
+#include <asm/uaccess.h>
+
+#include "cpl5_cmd.h"
+#include "regs.h"
+#include "gmac.h"
+#include "cphy.h"
+#include "sge.h"
+#include "espi.h"
+
+#ifdef work_struct
+#include <linux/tqueue.h>
+#define INIT_WORK INIT_TQUEUE
+#define schedule_work schedule_task
+#define flush_scheduled_work flush_scheduled_tasks
+
+static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
+{
+ mod_timer(&ap->stats_update_timer, jiffies + secs * HZ);
+}
+
+static inline void cancel_mac_stats_update(struct adapter *ap)
+{
+ del_timer_sync(&ap->stats_update_timer);
+ flush_scheduled_tasks();
+}
+
+/*
+ * Stats update timer for 2.4. It schedules a task to do the actual update as
+ * we need to access MAC statistics in process context.
+ */
+static void mac_stats_timer(unsigned long data)
+{
+ struct adapter *ap = (struct adapter *)data;
+
+ schedule_task(&ap->stats_update_task);
+}
+#else
+#include <linux/workqueue.h>
+
+static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
+{
+ schedule_delayed_work(&ap->stats_update_task, secs * HZ);
+}
+
+static inline void cancel_mac_stats_update(struct adapter *ap)
+{
+ cancel_delayed_work(&ap->stats_update_task);
+}
+#endif
+
+#define MAX_CMDQ_ENTRIES 16384
+#define MAX_CMDQ1_ENTRIES 1024
+#define MAX_RX_BUFFERS 16384
+#define MAX_RX_JUMBO_BUFFERS 16384
+#define MAX_TX_BUFFERS_HIGH 16384U
+#define MAX_TX_BUFFERS_LOW 1536U
+#define MIN_FL_ENTRIES 32
+
+#define PORT_MASK ((1 << MAX_NPORTS) - 1)
+
+#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
+ NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
+ NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
+
+/*
+ * The EEPROM is actually bigger but only the first few bytes are used so we
+ * only report those.
+ */
+#define EEPROM_SIZE 32
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR("Chelsio Communications");
+MODULE_LICENSE("GPL");
+
+static int dflt_msg_enable = DFLT_MSG_ENABLE;
+
+MODULE_PARM(dflt_msg_enable, "i");
+MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 message enable bitmap");
+
+
+static const char pci_speed[][4] = {
+ "33", "66", "100", "133"
+};
+
+/*
+ * Setup MAC to receive the types of packets we want.
+ */
+static void t1_set_rxmode(struct net_device *dev)
+{
+ struct adapter *adapter = dev->priv;
+ struct cmac *mac = adapter->port[dev->if_port].mac;
+ struct t1_rx_mode rm;
+
+ rm.dev = dev;
+ rm.idx = 0;
+ rm.list = dev->mc_list;
+ mac->ops->set_rx_mode(mac, &rm);
+}
+
+static void link_report(struct port_info *p)
+{
+ if (!netif_carrier_ok(p->dev))
+ printk(KERN_INFO "%s: link down\n", p->dev->name);
+ else {
+ const char *s = "10Mbps";
+
+ switch (p->link_config.speed) {
+ case SPEED_10000: s = "10Gbps"; break;
+ case SPEED_1000: s = "1000Mbps"; break;
+ case SPEED_100: s = "100Mbps"; break;
+ }
+
+ printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
+ p->dev->name, s,
+ p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
+ }
+}
+
+void t1_link_changed(struct adapter *adapter, int port_id, int link_stat,
+ int speed, int duplex, int pause)
+{
+ struct port_info *p = &adapter->port[port_id];
+
+ if (link_stat != netif_carrier_ok(p->dev)) {
+ if (link_stat)
+ netif_carrier_on(p->dev);
+ else
+ netif_carrier_off(p->dev);
+ link_report(p);
+
+ }
+}
+
+static void link_start(struct port_info *p)
+{
+ struct cmac *mac = p->mac;
+
+ mac->ops->reset(mac);
+ if (mac->ops->macaddress_set)
+ mac->ops->macaddress_set(mac, p->dev->dev_addr);
+ t1_set_rxmode(p->dev);
+ t1_link_start(p->phy, mac, &p->link_config);
+ mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
+}
+
+static void enable_hw_csum(struct adapter *adapter)
+{
+ if (adapter->flags & TSO_CAPABLE)
+ t1_tp_set_ip_checksum_offload(adapter, 1); /* for TSO only */
+ t1_tp_set_tcp_checksum_offload(adapter, 1);
+}
+
+/*
+ * Things to do upon first use of a card.
+ * This must run with the rtnl lock held.
+ */
+static int cxgb_up(struct adapter *adapter)
+{
+ int err = 0;
+
+ if (!(adapter->flags & FULL_INIT_DONE)) {
+ err = t1_init_hw_modules(adapter);
+ if (err)
+ goto out_err;
+
+ enable_hw_csum(adapter);
+ adapter->flags |= FULL_INIT_DONE;
+ }
+
+ t1_interrupts_clear(adapter);
+ if ((err = request_irq(adapter->pdev->irq,
+ t1_select_intr_handler(adapter), SA_SHIRQ,
+ adapter->name, adapter))) {
+ goto out_err;
+ }
+ t1_sge_start(adapter->sge);
+ t1_interrupts_enable(adapter);
+ out_err:
+ return err;
+}
+
+/*
+ * Release resources when all the ports have been stopped.
+ */
+static void cxgb_down(struct adapter *adapter)
+{
+ t1_sge_stop(adapter->sge);
+ t1_interrupts_disable(adapter);
+ free_irq(adapter->pdev->irq, adapter);
+}
+
+static int cxgb_open(struct net_device *dev)
+{
+ int err;
+ struct adapter *adapter = dev->priv;
+ int other_ports = adapter->open_device_map & PORT_MASK;
+
+ if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
+ return err;
+
+ __set_bit(dev->if_port, &adapter->open_device_map);
+ link_start(&adapter->port[dev->if_port]);
+ netif_start_queue(dev);
+ if (!other_ports && adapter->params.stats_update_period)
+ schedule_mac_stats_update(adapter,
+ adapter->params.stats_update_period);
+ return 0;
+}
+
+static int cxgb_close(struct net_device *dev)
+{
+ struct adapter *adapter = dev->priv;
+ struct port_info *p = &adapter->port[dev->if_port];
+ struct cmac *mac = p->mac;
+
+ netif_stop_queue(dev);
+ mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
+ netif_carrier_off(dev);
+
+ clear_bit(dev->if_port, &adapter->open_device_map);
+ if (adapter->params.stats_update_period &&
+ !(adapter->open_device_map & PORT_MASK)) {
+ /* Stop statistics accumulation. */
+ smp_mb__after_clear_bit();
+ spin_lock(&adapter->work_lock); /* sync with update task */
+ spin_unlock(&adapter->work_lock);
+ cancel_mac_stats_update(adapter);
+ }
+
+ if (!adapter->open_device_map)
+ cxgb_down(adapter);
+ return 0;
+}
+
+static struct net_device_stats *t1_get_stats(struct net_device *dev)
+{
+ struct adapter *adapter = dev->priv;
+ struct port_info *p = &adapter->port[dev->if_port];
+ struct net_device_stats *ns = &p->netstats;
+ const struct cmac_statistics *pstats;
+
+ /* Do a full update of the MAC stats */
+ pstats = p->mac->ops->statistics_update(p->mac,
+ MAC_STATS_UPDATE_FULL);
+
+ ns->tx_packets = pstats->TxUnicastFramesOK +
+ pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
+
+ ns->rx_packets = pstats->RxUnicastFramesOK +
+ pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
+
+ ns->tx_bytes = pstats->TxOctetsOK;
+ ns->rx_bytes = pstats->RxOctetsOK;
+
+ ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
+ pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
+ ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
+ pstats->RxFCSErrors + pstats->RxAlignErrors +
+ pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
+ pstats->RxSymbolErrors + pstats->RxRuntErrors;
+
+ ns->multicast = pstats->RxMulticastFramesOK;
+ ns->collisions = pstats->TxTotalCollisions;
+
+ /* detailed rx_errors */
+ ns->rx_length_errors = pstats->RxFrameTooLongErrors +
+ pstats->RxJabberErrors;
+ ns->rx_over_errors = 0;
+ ns->rx_crc_errors = pstats->RxFCSErrors;
+ ns->rx_frame_errors = pstats->RxAlignErrors;
+ ns->rx_fifo_errors = 0;
+ ns->rx_missed_errors = 0;
+
+ /* detailed tx_errors */
+ ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
+ ns->tx_carrier_errors = 0;
+ ns->tx_fifo_errors = pstats->TxUnderrun;
+ ns->tx_heartbeat_errors = 0;
+ ns->tx_window_errors = pstats->TxLateCollisions;
+ return ns;
+}
+
+static u32 get_msglevel(struct net_device *dev)
+{
+ struct adapter *adapter = dev->priv;
+
+ return adapter->msg_enable;
+}
+
+static void set_msglevel(struct net_device *dev, u32 val)
+{
+ struct adapter *adapter = dev->priv;
+
+ adapter->msg_enable = val;
+}
+
+static char stats_strings[][ETH_GSTRING_LEN] = {
+ "TxOctetsOK",
+ "TxOctetsBad",
+ "TxUnicastFramesOK",
+ "TxMulticastFramesOK",
+ "TxBroadcastFramesOK",
+ "TxPauseFrames",
+ "TxFramesWithDeferredXmissions",
+ "TxLateCollisions",
+ "TxTotalCollisions",
+ "TxFramesAbortedDueToXSCollisions",
+ "TxUnderrun",
+ "TxLengthErrors",
+ "TxInternalMACXmitError",
+ "TxFramesWithExcessiveDeferral",
+ "TxFCSErrors",
+
+ "RxOctetsOK",
+ "RxOctetsBad",
+ "RxUnicastFramesOK",
+ "RxMulticastFramesOK",
+ "RxBroadcastFramesOK",
+ "RxPauseFrames",
+ "RxFCSErrors",
+ "RxAlignErrors",
+ "RxSymbolErrors",
+ "RxDataErrors",
+ "RxSequenceErrors",
+ "RxRuntErrors",
+ "RxJabberErrors",
+ "RxInternalMACRcvError",
+ "RxInRangeLengthErrors",
+ "RxOutOfRangeLengthField",
+ "RxFrameTooLongErrors",
+
+ "TSO",
+ "VLANextractions",
+ "VLANinsertions",
+ "RxCsumGood",
+ "TxCsumOffload",
+ "RxDrops"
+
+ "respQ_empty",
+ "respQ_overflow",
+ "freelistQ_empty",
+ "pkt_too_big",
+ "pkt_mismatch",
+ "cmdQ_full0",
+ "cmdQ_full1",
+ "tx_ipfrags",
+ "tx_reg_pkts",
+ "tx_lso_pkts",
+ "tx_do_cksum",
+
+ "espi_DIP2ParityErr",
+ "espi_DIP4Err",
+ "espi_RxDrops",
+ "espi_TxDrops",
+ "espi_RxOvfl",
+ "espi_ParityErr"
+};
+
+#define T2_REGMAP_SIZE (3 * 1024)
+
+static int get_regs_len(struct net_device *dev)
+{
+ return T2_REGMAP_SIZE;
+}
+
+static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct adapter *adapter = dev->priv;
+
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ strcpy(info->fw_version, "N/A");
+ strcpy(info->bus_info, pci_name(adapter->pdev));
+}
+
+static int get_stats_count(struct net_device *dev)
+{
+ return ARRAY_SIZE(stats_strings);
+}
+
+static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ if (stringset == ETH_SS_STATS)
+ memcpy(data, stats_strings, sizeof(stats_strings));
+}
+
+static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct adapter *adapter = dev->priv;
+ struct cmac *mac = adapter->port[dev->if_port].mac;
+ const struct cmac_statistics *s;
+ const struct sge_port_stats *ss;
+ const struct sge_intr_counts *t;
+
+ s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
+ ss = t1_sge_get_port_stats(adapter->sge, dev->if_port);
+ t = t1_sge_get_intr_counts(adapter->sge);
+
+ *data++ = s->TxOctetsOK;
+ *data++ = s->TxOctetsBad;
+ *data++ = s->TxUnicastFramesOK;
+ *data++ = s->TxMulticastFramesOK;
+ *data++ = s->TxBroadcastFramesOK;
+ *data++ = s->TxPauseFrames;
+ *data++ = s->TxFramesWithDeferredXmissions;
+ *data++ = s->TxLateCollisions;
+ *data++ = s->TxTotalCollisions;
+ *data++ = s->TxFramesAbortedDueToXSCollisions;
+ *data++ = s->TxUnderrun;
+ *data++ = s->TxLengthErrors;
+ *data++ = s->TxInternalMACXmitError;
+ *data++ = s->TxFramesWithExcessiveDeferral;
+ *data++ = s->TxFCSErrors;
+
+ *data++ = s->RxOctetsOK;
+ *data++ = s->RxOctetsBad;
+ *data++ = s->RxUnicastFramesOK;
+ *data++ = s->RxMulticastFramesOK;
+ *data++ = s->RxBroadcastFramesOK;
+ *data++ = s->RxPauseFrames;
+ *data++ = s->RxFCSErrors;
+ *data++ = s->RxAlignErrors;
+ *data++ = s->RxSymbolErrors;
+ *data++ = s->RxDataErrors;
+ *data++ = s->RxSequenceErrors;
+ *data++ = s->RxRuntErrors;
+ *data++ = s->RxJabberErrors;
+ *data++ = s->RxInternalMACRcvError;
+ *data++ = s->RxInRangeLengthErrors;
+ *data++ = s->RxOutOfRangeLengthField;
+ *data++ = s->RxFrameTooLongErrors;
+
+ *data++ = ss->tso;
+ *data++ = ss->vlan_xtract;
+ *data++ = ss->vlan_insert;
+ *data++ = ss->rx_cso_good;
+ *data++ = ss->tx_cso;
+ *data++ = ss->rx_drops;
+
+ *data++ = (u64)t->respQ_empty;
+ *data++ = (u64)t->respQ_overflow;
+ *data++ = (u64)t->freelistQ_empty;
+ *data++ = (u64)t->pkt_too_big;
+ *data++ = (u64)t->pkt_mismatch;
+ *data++ = (u64)t->cmdQ_full[0];
+ *data++ = (u64)t->cmdQ_full[1];
+ *data++ = (u64)t->tx_ipfrags;
+ *data++ = (u64)t->tx_reg_pkts;
+ *data++ = (u64)t->tx_lso_pkts;
+ *data++ = (u64)t->tx_do_cksum;
+}
+
+static inline void reg_block_dump(struct adapter *ap, void *buf,
+ unsigned int start, unsigned int end)
+{
+ u32 *p = buf + start;
+
+ for ( ; start <= end; start += sizeof(u32))
+ *p++ = readl(ap->regs + start);
+}
+
+static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *buf)
+{
+ struct adapter *ap = dev->priv;
+
+ /*
+ * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
+ */
+ regs->version = 2;
+
+ memset(buf, 0, T2_REGMAP_SIZE);
+ reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
+}
+
+static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct adapter *adapter = dev->priv;
+ struct port_info *p = &adapter->port[dev->if_port];
+
+ cmd->supported = p->link_config.supported;
+ cmd->advertising = p->link_config.advertising;
+
+ if (netif_carrier_ok(dev)) {
+ cmd->speed = p->link_config.speed;
+ cmd->duplex = p->link_config.duplex;
+ } else {
+ cmd->speed = -1;
+ cmd->duplex = -1;
+ }
+
+ cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
+ cmd->phy_address = p->phy->addr;
+ cmd->transceiver = XCVR_EXTERNAL;
+ cmd->autoneg = p->link_config.autoneg;
+ cmd->maxtxpkt = 0;
+ cmd->maxrxpkt = 0;
+ return 0;
+}
+
+static int speed_duplex_to_caps(int speed, int duplex)
+{
+ int cap = 0;
+
+ switch (speed) {
+ case SPEED_10:
+ if (duplex == DUPLEX_FULL)
+ cap = SUPPORTED_10baseT_Full;
+ else
+ cap = SUPPORTED_10baseT_Half;
+ break;
+ case SPEED_100:
+ if (duplex == DUPLEX_FULL)
+ cap = SUPPORTED_100baseT_Full;
+ else
+ cap = SUPPORTED_100baseT_Half;
+ break;
+ case SPEED_1000:
+ if (duplex == DUPLEX_FULL)
+ cap = SUPPORTED_1000baseT_Full;
+ else
+ cap = SUPPORTED_1000baseT_Half;
+ break;
+ case SPEED_10000:
+ if (duplex == DUPLEX_FULL)
+ cap = SUPPORTED_10000baseT_Full;
+ }
+ return cap;
+}
+
+#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
+ ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
+ ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
+ ADVERTISED_10000baseT_Full)
+
+static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct adapter *adapter = dev->priv;
+ struct port_info *p = &adapter->port[dev->if_port];
+ struct link_config *lc = &p->link_config;
+
+ if (!(lc->supported & SUPPORTED_Autoneg))
+ return -EOPNOTSUPP; /* can't change speed/duplex */
+
+ if (cmd->autoneg == AUTONEG_DISABLE) {
+ int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
+
+ if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
+ return -EINVAL;
+ lc->requested_speed = cmd->speed;
+ lc->requested_duplex = cmd->duplex;
+ lc->advertising = 0;
+ } else {
+ cmd->advertising &= ADVERTISED_MASK;
+ if (cmd->advertising & (cmd->advertising - 1))
+ cmd->advertising = lc->supported;
+ cmd->advertising &= lc->supported;
+ if (!cmd->advertising)
+ return -EINVAL;
+ lc->requested_speed = SPEED_INVALID;
+ lc->requested_duplex = DUPLEX_INVALID;
+ lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
+ }
+ lc->autoneg = cmd->autoneg;
+ if (netif_running(dev))
+ t1_link_start(p->phy, p->mac, lc);
+ return 0;
+}
+
+static void get_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *epause)
+{
+ struct adapter *adapter = dev->priv;
+ struct port_info *p = &adapter->port[dev->if_port];
+
+ epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
+ epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
+ epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
+}
+
+static int set_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *epause)
+{
+ struct adapter *adapter = dev->priv;
+ struct port_info *p = &adapter->port[dev->if_port];
+ struct link_config *lc = &p->link_config;
+
+ if (epause->autoneg == AUTONEG_DISABLE)
+ lc->requested_fc = 0;
+ else if (lc->supported & SUPPORTED_Autoneg)
+ lc->requested_fc = PAUSE_AUTONEG;
+ else
+ return -EINVAL;
+
+ if (epause->rx_pause)
+ lc->requested_fc |= PAUSE_RX;
+ if (epause->tx_pause)
+ lc->requested_fc |= PAUSE_TX;
+ if (lc->autoneg == AUTONEG_ENABLE) {
+ if (netif_running(dev))
+ t1_link_start(p->phy, p->mac, lc);
+ } else {
+ lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
+ if (netif_running(dev))
+ p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
+ lc->fc);
+ }
+ return 0;
+}
+
+static u32 get_rx_csum(struct net_device *dev)
+{
+ struct adapter *adapter = dev->priv;
+
+ return (adapter->flags & RX_CSUM_ENABLED) != 0;
+}
+
+static int set_rx_csum(struct net_device *dev, u32 data)
+{
+ struct adapter *adapter = dev->priv;
+
+ if (data)
+ adapter->flags |= RX_CSUM_ENABLED;
+ else
+ adapter->flags &= ~RX_CSUM_ENABLED;
+ return 0;
+}
+
+static int set_tso(struct net_device *dev, u32 value)
+{
+ struct adapter *adapter = dev->priv;
+
+ if (!(adapter->flags & TSO_CAPABLE))
+ return value ? -EOPNOTSUPP : 0;
+ return ethtool_op_set_tso(dev, value);
+}
+
+static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+{
+ struct adapter *adapter = dev->priv;
+ int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
+
+ e->rx_max_pending = MAX_RX_BUFFERS;
+ e->rx_mini_max_pending = 0;
+ e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
+ e->tx_max_pending = MAX_CMDQ_ENTRIES;
+
+ e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
+ e->rx_mini_pending = 0;
+ e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
+ e->tx_pending = adapter->params.sge.cmdQ_size[0];
+}
+
+static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+{
+ struct adapter *adapter = dev->priv;
+ int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
+
+ if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
+ e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
+ e->tx_pending > MAX_CMDQ_ENTRIES ||
+ e->rx_pending < MIN_FL_ENTRIES ||
+ e->rx_jumbo_pending < MIN_FL_ENTRIES ||
+ e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
+ return -EINVAL;
+
+ if (adapter->flags & FULL_INIT_DONE)
+ return -EBUSY;
+
+ adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
+ adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
+ adapter->params.sge.cmdQ_size[0] = e->tx_pending;
+ adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
+ MAX_CMDQ1_ENTRIES : e->tx_pending;
+ return 0;
+}
+
+static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
+{
+ struct adapter *adapter = dev->priv;
+
+ /*
+ * If RX coalescing is requested we use NAPI, otherwise interrupts.
+ * This choice can be made only when all ports and the TOE are off.
+ */
+ if (adapter->open_device_map == 0)
+ adapter->params.sge.polling = c->use_adaptive_rx_coalesce;
+
+ if (adapter->params.sge.polling) {
+ adapter->params.sge.rx_coalesce_usecs = 0;
+ } else {
+ adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
+ }
+ adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
+ adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
+ t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
+ return 0;
+}
+
+static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
+{
+ struct adapter *adapter = dev->priv;
+
+ c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
+ c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
+ c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
+ return 0;
+}
+
+static int get_eeprom_len(struct net_device *dev)
+{
+ return EEPROM_SIZE;
+}
+
+#define EEPROM_MAGIC(ap) \
+ (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
+
+static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
+ u8 *data)
+{
+ int i;
+ u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
+ struct adapter *adapter = dev->priv;
+
+ e->magic = EEPROM_MAGIC(adapter);
+ for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
+ t1_seeprom_read(adapter, i, (u32 *)&buf[i]);
+ memcpy(data, buf + e->offset, e->len);
+ return 0;
+}
+
+static struct ethtool_ops t1_ethtool_ops = {
+ .get_settings = get_settings,
+ .set_settings = set_settings,
+ .get_drvinfo = get_drvinfo,
+ .get_msglevel = get_msglevel,
+ .set_msglevel = set_msglevel,
+ .get_ringparam = get_sge_param,
+ .set_ringparam = set_sge_param,
+ .get_coalesce = get_coalesce,
+ .set_coalesce = set_coalesce,
+ .get_eeprom_len = get_eeprom_len,
+ .get_eeprom = get_eeprom,
+ .get_pauseparam = get_pauseparam,
+ .set_pauseparam = set_pauseparam,
+ .get_rx_csum = get_rx_csum,
+ .set_rx_csum = set_rx_csum,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+ .set_tx_csum = ethtool_op_set_tx_csum,
+ .get_sg = ethtool_op_get_sg,
+ .set_sg = ethtool_op_set_sg,
+ .get_link = ethtool_op_get_link,
+ .get_strings = get_strings,
+ .get_stats_count = get_stats_count,
+ .get_ethtool_stats = get_stats,
+ .get_regs_len = get_regs_len,
+ .get_regs = get_regs,
+ .get_tso = ethtool_op_get_tso,
+ .set_tso = set_tso,
+};
+
+static void cxgb_proc_cleanup(struct adapter *adapter,
+ struct proc_dir_entry *dir)
+{
+ const char *name;
+ name = adapter->name;
+ remove_proc_entry(name, dir);
+}
+//#define chtoe_setup_toedev(adapter) NULL
+#define update_mtu_tab(adapter)
+#define write_smt_entry(adapter, idx)
+
+static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
+{
+ struct adapter *adapter = dev->priv;
+ struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data;
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = adapter->port[dev->if_port].phy->addr;
+ /* FALLTHRU */
+ case SIOCGMIIREG: {
+ struct cphy *phy = adapter->port[dev->if_port].phy;
+ u32 val;
+
+ if (!phy->mdio_read)
+ return -EOPNOTSUPP;
+ phy->mdio_read(adapter, data->phy_id, 0, data->reg_num & 0x1f,
+ &val);
+ data->val_out = val;
+ break;
+ }
+ case SIOCSMIIREG: {
+ struct cphy *phy = adapter->port[dev->if_port].phy;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ if (!phy->mdio_write)
+ return -EOPNOTSUPP;
+ phy->mdio_write(adapter, data->phy_id, 0, data->reg_num & 0x1f,
+ data->val_in);
+ break;
+ }
+
+ default:
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static int t1_change_mtu(struct net_device *dev, int new_mtu)
+{
+ int ret;
+ struct adapter *adapter = dev->priv;
+ struct cmac *mac = adapter->port[dev->if_port].mac;
+
+ if (!mac->ops->set_mtu)
+ return -EOPNOTSUPP;
+ if (new_mtu < 68)
+ return -EINVAL;
+ if ((ret = mac->ops->set_mtu(mac, new_mtu)))
+ return ret;
+ dev->mtu = new_mtu;
+ return 0;
+}
+
+static int t1_set_mac_addr(struct net_device *dev, void *p)
+{
+ struct adapter *adapter = dev->priv;
+ struct cmac *mac = adapter->port[dev->if_port].mac;
+ struct sockaddr *addr = p;
+
+ if (!mac->ops->macaddress_set)
+ return -EOPNOTSUPP;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+ mac->ops->macaddress_set(mac, dev->dev_addr);
+ return 0;
+}
+
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+static void vlan_rx_register(struct net_device *dev,
+ struct vlan_group *grp)
+{
+ struct adapter *adapter = dev->priv;
+
+ spin_lock_irq(&adapter->async_lock);
+ adapter->vlan_grp = grp;
+ t1_set_vlan_accel(adapter, grp != NULL);
+ spin_unlock_irq(&adapter->async_lock);
+}
+
+static void vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
+{
+ struct adapter *adapter = dev->priv;
+
+ spin_lock_irq(&adapter->async_lock);
+ if (adapter->vlan_grp)
+ adapter->vlan_grp->vlan_devices[vid] = NULL;
+ spin_unlock_irq(&adapter->async_lock);
+}
+#endif
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void t1_netpoll(struct net_device *dev)
+{
+ unsigned long flags;
+ struct adapter *adapter = dev->priv;
+
+ local_irq_save(flags);
+ t1_select_intr_handler(adapter)(adapter->pdev->irq, adapter, NULL);
+ local_irq_restore(flags);
+}
+#endif
+
+/*
+ * Periodic accumulation of MAC statistics. This is used only if the MAC
+ * does not have any other way to prevent stats counter overflow.
+ */
+static void mac_stats_task(void *data)
+{
+ int i;
+ struct adapter *adapter = data;
+
+ for_each_port(adapter, i) {
+ struct port_info *p = &adapter->port[i];
+
+ if (netif_running(p->dev))
+ p->mac->ops->statistics_update(p->mac,
+ MAC_STATS_UPDATE_FAST);
+ }
+
+ /* Schedule the next statistics update if any port is active. */
+ spin_lock(&adapter->work_lock);
+ if (adapter->open_device_map & PORT_MASK)
+ schedule_mac_stats_update(adapter,
+ adapter->params.stats_update_period);
+ spin_unlock(&adapter->work_lock);
+}
+
+/*
+ * Processes elmer0 external interrupts in process context.
+ */
+static void ext_intr_task(void *data)
+{
+ struct adapter *adapter = data;
+
+ elmer0_ext_intr_handler(adapter);
+
+ /* Now reenable external interrupts */
+ spin_lock_irq(&adapter->async_lock);
+ adapter->slow_intr_mask |= F_PL_INTR_EXT;
+ writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
+ writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
+ adapter->regs + A_PL_ENABLE);
+ spin_unlock_irq(&adapter->async_lock);
+}
+
+/*
+ * Interrupt-context handler for elmer0 external interrupts.
+ */
+void t1_elmer0_ext_intr(struct adapter *adapter)
+{
+ /*
+ * Schedule a task to handle external interrupts as we require
+ * a process context. We disable EXT interrupts in the interim
+ * and let the task reenable them when it's done.
+ */
+ adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
+ writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
+ adapter->regs + A_PL_ENABLE);
+ schedule_work(&adapter->ext_intr_handler_task);
+}
+
+void t1_fatal_err(struct adapter *adapter)
+{
+ if (adapter->flags & FULL_INIT_DONE) {
+ t1_sge_stop(adapter->sge);
+ t1_interrupts_disable(adapter);
+ }
+ CH_ALERT("%s: encountered fatal error, operation suspended\n",
+ adapter->name);
+}
+
+static int __devinit init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ static int version_printed;
+
+ int i, err, pci_using_dac = 0;
+ unsigned long mmio_start, mmio_len;
+ const struct board_info *bi;
+ struct adapter *adapter = NULL;
+ struct port_info *pi;
+
+ if (!version_printed) {
+ printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
+ DRV_VERSION);
+ ++version_printed;
+ }
+
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+
+ if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+ CH_ERR("%s: cannot find PCI device memory base address\n",
+ pci_name(pdev));
+ err = -ENODEV;
+ goto out_disable_pdev;
+ }
+
+ if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
+ pci_using_dac = 1;
+
+ if (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
+ CH_ERR("%s: unable to obtain 64-bit DMA for"
+ "consistent allocations\n", pci_name(pdev));
+ err = -ENODEV;
+ goto out_disable_pdev;
+ }
+
+ } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
+ CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
+ goto out_disable_pdev;
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err) {
+ CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
+ goto out_disable_pdev;
+ }
+
+ pci_set_master(pdev);
+
+ mmio_start = pci_resource_start(pdev, 0);
+ mmio_len = pci_resource_len(pdev, 0);
+ bi = t1_get_board_info(ent->driver_data);
+
+ for (i = 0; i < bi->port_number; ++i) {
+ struct net_device *netdev;
+
+ netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
+ if (!netdev) {
+ err = -ENOMEM;
+ goto out_free_dev;
+ }
+
+ SET_MODULE_OWNER(netdev);
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ if (!adapter) {
+ adapter = netdev->priv;
+ adapter->pdev = pdev;
+ adapter->port[0].dev = netdev; /* so we don't leak it */
+
+ adapter->regs = ioremap(mmio_start, mmio_len);
+ if (!adapter->regs) {
+ CH_ERR("%s: cannot map device registers\n",
+ pci_name(pdev));
+ err = -ENOMEM;
+ goto out_free_dev;
+ }
+
+ if (t1_get_board_rev(adapter, bi, &adapter->params)) {
+ err = -ENODEV; /* Can't handle this chip rev */
+ goto out_free_dev;
+ }
+
+ adapter->name = pci_name(pdev);
+ adapter->msg_enable = dflt_msg_enable;
+ adapter->mmio_len = mmio_len;
+
+ init_MUTEX(&adapter->mib_mutex);
+ spin_lock_init(&adapter->tpi_lock);
+ spin_lock_init(&adapter->work_lock);
+ spin_lock_init(&adapter->async_lock);
+
+ INIT_WORK(&adapter->ext_intr_handler_task,
+ ext_intr_task, adapter);
+ INIT_WORK(&adapter->stats_update_task, mac_stats_task,
+ adapter);
+#ifdef work_struct
+ init_timer(&adapter->stats_update_timer);
+ adapter->stats_update_timer.function = mac_stats_timer;
+ adapter->stats_update_timer.data =
+ (unsigned long)adapter;
+#endif
+
+ pci_set_drvdata(pdev, netdev);
+ }
+
+ pi = &adapter->port[i];
+ pi->dev = netdev;
+ netif_carrier_off(netdev);
+ netdev->irq = pdev->irq;
+ netdev->if_port = i;
+ netdev->mem_start = mmio_start;
+ netdev->mem_end = mmio_start + mmio_len - 1;
+ netdev->priv = adapter;
+ netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+ netdev->features |= NETIF_F_LLTX;
+
+ adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
+ if (pci_using_dac)
+ netdev->features |= NETIF_F_HIGHDMA;
+ if (vlan_tso_capable(adapter)) {
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+ adapter->flags |= VLAN_ACCEL_CAPABLE;
+ netdev->features |=
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ netdev->vlan_rx_register = vlan_rx_register;
+ netdev->vlan_rx_kill_vid = vlan_rx_kill_vid;
+#endif
+ adapter->flags |= TSO_CAPABLE;
+ netdev->features |= NETIF_F_TSO;
+ }
+
+ netdev->open = cxgb_open;
+ netdev->stop = cxgb_close;
+ netdev->hard_start_xmit = t1_start_xmit;
+ netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
+ sizeof(struct cpl_tx_pkt_lso) :
+ sizeof(struct cpl_tx_pkt);
+ netdev->get_stats = t1_get_stats;
+ netdev->set_multicast_list = t1_set_rxmode;
+ netdev->do_ioctl = t1_ioctl;
+ netdev->change_mtu = t1_change_mtu;
+ netdev->set_mac_address = t1_set_mac_addr;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ netdev->poll_controller = t1_netpoll;
+#endif
+ netdev->weight = 64;
+
+ SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
+ }
+
+ if (t1_init_sw_modules(adapter, bi) < 0) {
+ err = -ENODEV;
+ goto out_free_dev;
+ }
+
+ /*
+ * The card is now ready to go. If any errors occur during device
+ * registration we do not fail the whole card but rather proceed only
+ * with the ports we manage to register successfully. However we must
+ * register at least one net device.
+ */
+ for (i = 0; i < bi->port_number; ++i) {
+ err = register_netdev(adapter->port[i].dev);
+ if (err)
+ CH_WARN("%s: cannot register net device %s, skipping\n",
+ pci_name(pdev), adapter->port[i].dev->name);
+ else {
+ /*
+ * Change the name we use for messages to the name of
+ * the first successfully registered interface.
+ */
+ if (!adapter->registered_device_map)
+ adapter->name = adapter->port[i].dev->name;
+
+ __set_bit(i, &adapter->registered_device_map);
+ }
+ }
+ if (!adapter->registered_device_map) {
+ CH_ERR("%s: could not register any net devices\n",
+ pci_name(pdev));
+ goto out_release_adapter_res;
+ }
+
+ printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
+ bi->desc, adapter->params.chip_revision,
+ adapter->params.pci.is_pcix ? "PCIX" : "PCI",
+ adapter->params.pci.speed, adapter->params.pci.width);
+ return 0;
+
+ out_release_adapter_res:
+ t1_free_sw_modules(adapter);
+ out_free_dev:
+ if (adapter) {
+ if (adapter->regs) iounmap(adapter->regs);
+ for (i = bi->port_number - 1; i >= 0; --i)
+ if (adapter->port[i].dev) {
+ cxgb_proc_cleanup(adapter, proc_root_driver);
+ kfree(adapter->port[i].dev);
+ }
+ }
+ pci_release_regions(pdev);
+ out_disable_pdev:
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ return err;
+}
+
+static inline void t1_sw_reset(struct pci_dev *pdev)
+{
+ pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
+ pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
+}
+
+static void __devexit remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ if (dev) {
+ int i;
+ struct adapter *adapter = dev->priv;
+
+ for_each_port(adapter, i)
+ if (test_bit(i, &adapter->registered_device_map))
+ unregister_netdev(adapter->port[i].dev);
+
+ t1_free_sw_modules(adapter);
+ iounmap(adapter->regs);
+ while (--i >= 0)
+ if (adapter->port[i].dev) {
+ cxgb_proc_cleanup(adapter, proc_root_driver);
+ kfree(adapter->port[i].dev);
+ }
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ t1_sw_reset(pdev);
+ }
+}
+
+static struct pci_driver driver = {
+ .name = DRV_NAME,
+ .id_table = t1_pci_tbl,
+ .probe = init_one,
+ .remove = __devexit_p(remove_one),
+};
+
+static int __init t1_init_module(void)
+{
+ return pci_module_init(&driver);
+}
+
+static void __exit t1_cleanup_module(void)
+{
+ pci_unregister_driver(&driver);
+}
+
+module_init(t1_init_module);
+module_exit(t1_cleanup_module);
diff --git a/drivers/net/chelsio/elmer0.h b/drivers/net/chelsio/elmer0.h
new file mode 100644
index 00000000000..5590cb2dac1
--- /dev/null
+++ b/drivers/net/chelsio/elmer0.h
@@ -0,0 +1,151 @@
+/*****************************************************************************
+ * *
+ * File: elmer0.h *
+ * $Revision: 1.6 $ *
+ * $Date: 2005/06/21 22:49:43 $ *
+ * Description: *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_ELMER0_H_
+#define _CXGB_ELMER0_H_
+
+/* ELMER0 registers */
+#define A_ELMER0_VERSION 0x100000
+#define A_ELMER0_PHY_CFG 0x100004
+#define A_ELMER0_INT_ENABLE 0x100008
+#define A_ELMER0_INT_CAUSE 0x10000c
+#define A_ELMER0_GPI_CFG 0x100010
+#define A_ELMER0_GPI_STAT 0x100014
+#define A_ELMER0_GPO 0x100018
+#define A_ELMER0_PORT0_MI1_CFG 0x400000
+
+#define S_MI1_MDI_ENABLE 0
+#define V_MI1_MDI_ENABLE(x) ((x) << S_MI1_MDI_ENABLE)
+#define F_MI1_MDI_ENABLE V_MI1_MDI_ENABLE(1U)
+
+#define S_MI1_MDI_INVERT 1
+#define V_MI1_MDI_INVERT(x) ((x) << S_MI1_MDI_INVERT)
+#define F_MI1_MDI_INVERT V_MI1_MDI_INVERT(1U)
+
+#define S_MI1_PREAMBLE_ENABLE 2
+#define V_MI1_PREAMBLE_ENABLE(x) ((x) << S_MI1_PREAMBLE_ENABLE)
+#define F_MI1_PREAMBLE_ENABLE V_MI1_PREAMBLE_ENABLE(1U)
+
+#define S_MI1_SOF 3
+#define M_MI1_SOF 0x3
+#define V_MI1_SOF(x) ((x) << S_MI1_SOF)
+#define G_MI1_SOF(x) (((x) >> S_MI1_SOF) & M_MI1_SOF)
+
+#define S_MI1_CLK_DIV 5
+#define M_MI1_CLK_DIV 0xff
+#define V_MI1_CLK_DIV(x) ((x) << S_MI1_CLK_DIV)
+#define G_MI1_CLK_DIV(x) (((x) >> S_MI1_CLK_DIV) & M_MI1_CLK_DIV)
+
+#define A_ELMER0_PORT0_MI1_ADDR 0x400004
+
+#define S_MI1_REG_ADDR 0
+#define M_MI1_REG_ADDR 0x1f
+#define V_MI1_REG_ADDR(x) ((x) << S_MI1_REG_ADDR)
+#define G_MI1_REG_ADDR(x) (((x) >> S_MI1_REG_ADDR) & M_MI1_REG_ADDR)
+
+#define S_MI1_PHY_ADDR 5
+#define M_MI1_PHY_ADDR 0x1f
+#define V_MI1_PHY_ADDR(x) ((x) << S_MI1_PHY_ADDR)
+#define G_MI1_PHY_ADDR(x) (((x) >> S_MI1_PHY_ADDR) & M_MI1_PHY_ADDR)
+
+#define A_ELMER0_PORT0_MI1_DATA 0x400008
+
+#define S_MI1_DATA 0
+#define M_MI1_DATA 0xffff
+#define V_MI1_DATA(x) ((x) << S_MI1_DATA)
+#define G_MI1_DATA(x) (((x) >> S_MI1_DATA) & M_MI1_DATA)
+
+#define A_ELMER0_PORT0_MI1_OP 0x40000c
+
+#define S_MI1_OP 0
+#define M_MI1_OP 0x3
+#define V_MI1_OP(x) ((x) << S_MI1_OP)
+#define G_MI1_OP(x) (((x) >> S_MI1_OP) & M_MI1_OP)
+
+#define S_MI1_ADDR_AUTOINC 2
+#define V_MI1_ADDR_AUTOINC(x) ((x) << S_MI1_ADDR_AUTOINC)
+#define F_MI1_ADDR_AUTOINC V_MI1_ADDR_AUTOINC(1U)
+
+#define S_MI1_OP_BUSY 31
+#define V_MI1_OP_BUSY(x) ((x) << S_MI1_OP_BUSY)
+#define F_MI1_OP_BUSY V_MI1_OP_BUSY(1U)
+
+#define A_ELMER0_PORT1_MI1_CFG 0x500000
+#define A_ELMER0_PORT1_MI1_ADDR 0x500004
+#define A_ELMER0_PORT1_MI1_DATA 0x500008
+#define A_ELMER0_PORT1_MI1_OP 0x50000c
+#define A_ELMER0_PORT2_MI1_CFG 0x600000
+#define A_ELMER0_PORT2_MI1_ADDR 0x600004
+#define A_ELMER0_PORT2_MI1_DATA 0x600008
+#define A_ELMER0_PORT2_MI1_OP 0x60000c
+#define A_ELMER0_PORT3_MI1_CFG 0x700000
+#define A_ELMER0_PORT3_MI1_ADDR 0x700004
+#define A_ELMER0_PORT3_MI1_DATA 0x700008
+#define A_ELMER0_PORT3_MI1_OP 0x70000c
+
+/* Simple bit definition for GPI and GP0 registers. */
+#define ELMER0_GP_BIT0 0x0001
+#define ELMER0_GP_BIT1 0x0002
+#define ELMER0_GP_BIT2 0x0004
+#define ELMER0_GP_BIT3 0x0008
+#define ELMER0_GP_BIT4 0x0010
+#define ELMER0_GP_BIT5 0x0020
+#define ELMER0_GP_BIT6 0x0040
+#define ELMER0_GP_BIT7 0x0080
+#define ELMER0_GP_BIT8 0x0100
+#define ELMER0_GP_BIT9 0x0200
+#define ELMER0_GP_BIT10 0x0400
+#define ELMER0_GP_BIT11 0x0800
+#define ELMER0_GP_BIT12 0x1000
+#define ELMER0_GP_BIT13 0x2000
+#define ELMER0_GP_BIT14 0x4000
+#define ELMER0_GP_BIT15 0x8000
+#define ELMER0_GP_BIT16 0x10000
+#define ELMER0_GP_BIT17 0x20000
+#define ELMER0_GP_BIT18 0x40000
+#define ELMER0_GP_BIT19 0x80000
+
+#define MI1_OP_DIRECT_WRITE 1
+#define MI1_OP_DIRECT_READ 2
+
+#define MI1_OP_INDIRECT_ADDRESS 0
+#define MI1_OP_INDIRECT_WRITE 1
+#define MI1_OP_INDIRECT_READ_INC 2
+#define MI1_OP_INDIRECT_READ 3
+
+#endif /* _CXGB_ELMER0_H_ */
diff --git a/drivers/net/chelsio/espi.c b/drivers/net/chelsio/espi.c
new file mode 100644
index 00000000000..230642571c9
--- /dev/null
+++ b/drivers/net/chelsio/espi.c
@@ -0,0 +1,346 @@
+/*****************************************************************************
+ * *
+ * File: espi.c *
+ * $Revision: 1.14 $ *
+ * $Date: 2005/05/14 00:59:32 $ *
+ * Description: *
+ * Ethernet SPI functionality. *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#include "common.h"
+#include "regs.h"
+#include "espi.h"
+
+struct peespi {
+ adapter_t *adapter;
+ struct espi_intr_counts intr_cnt;
+ u32 misc_ctrl;
+ spinlock_t lock;
+};
+
+#define ESPI_INTR_MASK (F_DIP4ERR | F_RXDROP | F_TXDROP | F_RXOVERFLOW | \
+ F_RAMPARITYERR | F_DIP2PARITYERR)
+#define MON_MASK (V_MONITORED_PORT_NUM(3) | F_MONITORED_DIRECTION \
+ | F_MONITORED_INTERFACE)
+
+#define TRICN_CNFG 14
+#define TRICN_CMD_READ 0x11
+#define TRICN_CMD_WRITE 0x21
+#define TRICN_CMD_ATTEMPTS 10
+
+static int tricn_write(adapter_t *adapter, int bundle_addr, int module_addr,
+ int ch_addr, int reg_offset, u32 wr_data)
+{
+ int busy, attempts = TRICN_CMD_ATTEMPTS;
+
+ writel(V_WRITE_DATA(wr_data) |
+ V_REGISTER_OFFSET(reg_offset) |
+ V_CHANNEL_ADDR(ch_addr) | V_MODULE_ADDR(module_addr) |
+ V_BUNDLE_ADDR(bundle_addr) |
+ V_SPI4_COMMAND(TRICN_CMD_WRITE),
+ adapter->regs + A_ESPI_CMD_ADDR);
+ writel(0, adapter->regs + A_ESPI_GOSTAT);
+
+ do {
+ busy = readl(adapter->regs + A_ESPI_GOSTAT) & F_ESPI_CMD_BUSY;
+ } while (busy && --attempts);
+
+ if (busy)
+ CH_ERR("%s: TRICN write timed out\n", adapter->name);
+
+ return busy;
+}
+
+/* 1. Deassert rx_reset_core. */
+/* 2. Program TRICN_CNFG registers. */
+/* 3. Deassert rx_reset_link */
+static int tricn_init(adapter_t *adapter)
+{
+ int i = 0;
+ int sme = 1;
+ int stat = 0;
+ int timeout = 0;
+ int is_ready = 0;
+ int dynamic_deskew = 0;
+
+ if (dynamic_deskew)
+ sme = 0;
+
+
+ /* 1 */
+ timeout=1000;
+ do {
+ stat = readl(adapter->regs + A_ESPI_RX_RESET);
+ is_ready = (stat & 0x4);
+ timeout--;
+ udelay(5);
+ } while (!is_ready || (timeout==0));
+ writel(0x2, adapter->regs + A_ESPI_RX_RESET);
+ if (timeout==0)
+ {
+ CH_ERR("ESPI : ERROR : Timeout tricn_init() \n");
+ t1_fatal_err(adapter);
+ }
+
+ /* 2 */
+ if (sme) {
+ tricn_write(adapter, 0, 0, 0, TRICN_CNFG, 0x81);
+ tricn_write(adapter, 0, 1, 0, TRICN_CNFG, 0x81);
+ tricn_write(adapter, 0, 2, 0, TRICN_CNFG, 0x81);
+ }
+ for (i=1; i<= 8; i++) tricn_write(adapter, 0, 0, i, TRICN_CNFG, 0xf1);
+ for (i=1; i<= 2; i++) tricn_write(adapter, 0, 1, i, TRICN_CNFG, 0xf1);
+ for (i=1; i<= 3; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xe1);
+ for (i=4; i<= 4; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1);
+ for (i=5; i<= 5; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xe1);
+ for (i=6; i<= 6; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1);
+ for (i=7; i<= 7; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0x80);
+ for (i=8; i<= 8; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1);
+
+ /* 3 */
+ writel(0x3, adapter->regs + A_ESPI_RX_RESET);
+
+ return 0;
+}
+
+void t1_espi_intr_enable(struct peespi *espi)
+{
+ u32 enable, pl_intr = readl(espi->adapter->regs + A_PL_ENABLE);
+
+ /*
+ * Cannot enable ESPI interrupts on T1B because HW asserts the
+ * interrupt incorrectly, namely the driver gets ESPI interrupts
+ * but no data is actually dropped (can verify this reading the ESPI
+ * drop registers). Also, once the ESPI interrupt is asserted it
+ * cannot be cleared (HW bug).
+ */
+ enable = t1_is_T1B(espi->adapter) ? 0 : ESPI_INTR_MASK;
+ writel(enable, espi->adapter->regs + A_ESPI_INTR_ENABLE);
+ writel(pl_intr | F_PL_INTR_ESPI, espi->adapter->regs + A_PL_ENABLE);
+}
+
+void t1_espi_intr_clear(struct peespi *espi)
+{
+ writel(0xffffffff, espi->adapter->regs + A_ESPI_INTR_STATUS);
+ writel(F_PL_INTR_ESPI, espi->adapter->regs + A_PL_CAUSE);
+}
+
+void t1_espi_intr_disable(struct peespi *espi)
+{
+ u32 pl_intr = readl(espi->adapter->regs + A_PL_ENABLE);
+
+ writel(0, espi->adapter->regs + A_ESPI_INTR_ENABLE);
+ writel(pl_intr & ~F_PL_INTR_ESPI, espi->adapter->regs + A_PL_ENABLE);
+}
+
+int t1_espi_intr_handler(struct peespi *espi)
+{
+ u32 cnt;
+ u32 status = readl(espi->adapter->regs + A_ESPI_INTR_STATUS);
+
+ if (status & F_DIP4ERR)
+ espi->intr_cnt.DIP4_err++;
+ if (status & F_RXDROP)
+ espi->intr_cnt.rx_drops++;
+ if (status & F_TXDROP)
+ espi->intr_cnt.tx_drops++;
+ if (status & F_RXOVERFLOW)
+ espi->intr_cnt.rx_ovflw++;
+ if (status & F_RAMPARITYERR)
+ espi->intr_cnt.parity_err++;
+ if (status & F_DIP2PARITYERR) {
+ espi->intr_cnt.DIP2_parity_err++;
+
+ /*
+ * Must read the error count to clear the interrupt
+ * that it causes.
+ */
+ cnt = readl(espi->adapter->regs + A_ESPI_DIP2_ERR_COUNT);
+ }
+
+ /*
+ * For T1B we need to write 1 to clear ESPI interrupts. For T2+ we
+ * write the status as is.
+ */
+ if (status && t1_is_T1B(espi->adapter))
+ status = 1;
+ writel(status, espi->adapter->regs + A_ESPI_INTR_STATUS);
+ return 0;
+}
+
+const struct espi_intr_counts *t1_espi_get_intr_counts(struct peespi *espi)
+{
+ return &espi->intr_cnt;
+}
+
+static void espi_setup_for_pm3393(adapter_t *adapter)
+{
+ u32 wmark = t1_is_T1B(adapter) ? 0x4000 : 0x3200;
+
+ writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN0);
+ writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN1);
+ writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN2);
+ writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN3);
+ writel(0x100, adapter->regs + A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK);
+ writel(wmark, adapter->regs + A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK);
+ writel(3, adapter->regs + A_ESPI_CALENDAR_LENGTH);
+ writel(0x08000008, adapter->regs + A_ESPI_TRAIN);
+ writel(V_RX_NPORTS(1) | V_TX_NPORTS(1), adapter->regs + A_PORT_CONFIG);
+}
+
+/* T2 Init part -- */
+/* 1. Set T_ESPI_MISCCTRL_ADDR */
+/* 2. Init ESPI registers. */
+/* 3. Init TriCN Hard Macro */
+int t1_espi_init(struct peespi *espi, int mac_type, int nports)
+{
+ u32 cnt;
+
+ u32 status_enable_extra = 0;
+ adapter_t *adapter = espi->adapter;
+ u32 status, burstval = 0x800100;
+
+ /* Disable ESPI training. MACs that can handle it enable it below. */
+ writel(0, adapter->regs + A_ESPI_TRAIN);
+
+ if (is_T2(adapter)) {
+ writel(V_OUT_OF_SYNC_COUNT(4) |
+ V_DIP2_PARITY_ERR_THRES(3) |
+ V_DIP4_THRES(1), adapter->regs + A_ESPI_MISC_CONTROL);
+ if (nports == 4) {
+ /* T204: maxburst1 = 0x40, maxburst2 = 0x20 */
+ burstval = 0x200040;
+ }
+ }
+ writel(burstval, adapter->regs + A_ESPI_MAXBURST1_MAXBURST2);
+
+ switch (mac_type) {
+ case CHBT_MAC_PM3393:
+ espi_setup_for_pm3393(adapter);
+ break;
+ default:
+ return -1;
+ }
+
+ /*
+ * Make sure any pending interrupts from the SPI are
+ * Cleared before enabling the interrupt.
+ */
+ writel(ESPI_INTR_MASK, espi->adapter->regs + A_ESPI_INTR_ENABLE);
+ status = readl(espi->adapter->regs + A_ESPI_INTR_STATUS);
+ if (status & F_DIP2PARITYERR) {
+ cnt = readl(espi->adapter->regs + A_ESPI_DIP2_ERR_COUNT);
+ }
+
+ /*
+ * For T1B we need to write 1 to clear ESPI interrupts. For T2+ we
+ * write the status as is.
+ */
+ if (status && t1_is_T1B(espi->adapter))
+ status = 1;
+ writel(status, espi->adapter->regs + A_ESPI_INTR_STATUS);
+
+ writel(status_enable_extra | F_RXSTATUSENABLE,
+ adapter->regs + A_ESPI_FIFO_STATUS_ENABLE);
+
+ if (is_T2(adapter)) {
+ tricn_init(adapter);
+ /*
+ * Always position the control at the 1st port egress IN
+ * (sop,eop) counter to reduce PIOs for T/N210 workaround.
+ */
+ espi->misc_ctrl = (readl(adapter->regs + A_ESPI_MISC_CONTROL)
+ & ~MON_MASK) | (F_MONITORED_DIRECTION
+ | F_MONITORED_INTERFACE);
+ writel(espi->misc_ctrl, adapter->regs + A_ESPI_MISC_CONTROL);
+ spin_lock_init(&espi->lock);
+ }
+
+ return 0;
+}
+
+void t1_espi_destroy(struct peespi *espi)
+{
+ kfree(espi);
+}
+
+struct peespi *t1_espi_create(adapter_t *adapter)
+{
+ struct peespi *espi = kmalloc(sizeof(*espi), GFP_KERNEL);
+
+ memset(espi, 0, sizeof(*espi));
+
+ if (espi)
+ espi->adapter = adapter;
+ return espi;
+}
+
+void t1_espi_set_misc_ctrl(adapter_t *adapter, u32 val)
+{
+ struct peespi *espi = adapter->espi;
+
+ if (!is_T2(adapter))
+ return;
+ spin_lock(&espi->lock);
+ espi->misc_ctrl = (val & ~MON_MASK) |
+ (espi->misc_ctrl & MON_MASK);
+ writel(espi->misc_ctrl, adapter->regs + A_ESPI_MISC_CONTROL);
+ spin_unlock(&espi->lock);
+}
+
+u32 t1_espi_get_mon(adapter_t *adapter, u32 addr, u8 wait)
+{
+ u32 sel;
+
+ struct peespi *espi = adapter->espi;
+
+ if (!is_T2(adapter))
+ return 0;
+ sel = V_MONITORED_PORT_NUM((addr & 0x3c) >> 2);
+ if (!wait) {
+ if (!spin_trylock(&espi->lock))
+ return 0;
+ }
+ else
+ spin_lock(&espi->lock);
+ if ((sel != (espi->misc_ctrl & MON_MASK))) {
+ writel(((espi->misc_ctrl & ~MON_MASK) | sel),
+ adapter->regs + A_ESPI_MISC_CONTROL);
+ sel = readl(adapter->regs + A_ESPI_SCH_TOKEN3);
+ writel(espi->misc_ctrl, adapter->regs + A_ESPI_MISC_CONTROL);
+ }
+ else
+ sel = readl(adapter->regs + A_ESPI_SCH_TOKEN3);
+ spin_unlock(&espi->lock);
+ return sel;
+}
diff --git a/drivers/net/chelsio/espi.h b/drivers/net/chelsio/espi.h
new file mode 100644
index 00000000000..c90e37f8457
--- /dev/null
+++ b/drivers/net/chelsio/espi.h
@@ -0,0 +1,68 @@
+/*****************************************************************************
+ * *
+ * File: espi.h *
+ * $Revision: 1.7 $ *
+ * $Date: 2005/06/21 18:29:47 $ *
+ * Description: *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_ESPI_H_
+#define _CXGB_ESPI_H_
+
+#include "common.h"
+
+struct espi_intr_counts {
+ unsigned int DIP4_err;
+ unsigned int rx_drops;
+ unsigned int tx_drops;
+ unsigned int rx_ovflw;
+ unsigned int parity_err;
+ unsigned int DIP2_parity_err;
+};
+
+struct peespi;
+
+struct peespi *t1_espi_create(adapter_t *adapter);
+void t1_espi_destroy(struct peespi *espi);
+int t1_espi_init(struct peespi *espi, int mac_type, int nports);
+
+void t1_espi_intr_enable(struct peespi *);
+void t1_espi_intr_clear(struct peespi *);
+void t1_espi_intr_disable(struct peespi *);
+int t1_espi_intr_handler(struct peespi *);
+const struct espi_intr_counts *t1_espi_get_intr_counts(struct peespi *espi);
+
+void t1_espi_set_misc_ctrl(adapter_t *adapter, u32 val);
+u32 t1_espi_get_mon(adapter_t *adapter, u32 addr, u8 wait);
+
+#endif /* _CXGB_ESPI_H_ */
diff --git a/drivers/net/chelsio/gmac.h b/drivers/net/chelsio/gmac.h
new file mode 100644
index 00000000000..746b0eeea96
--- /dev/null
+++ b/drivers/net/chelsio/gmac.h
@@ -0,0 +1,134 @@
+/*****************************************************************************
+ * *
+ * File: gmac.h *
+ * $Revision: 1.6 $ *
+ * $Date: 2005/06/21 18:29:47 $ *
+ * Description: *
+ * Generic MAC functionality. *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_GMAC_H_
+#define _CXGB_GMAC_H_
+
+#include "common.h"
+
+enum { MAC_STATS_UPDATE_FAST, MAC_STATS_UPDATE_FULL };
+enum { MAC_DIRECTION_RX = 1, MAC_DIRECTION_TX = 2 };
+
+struct cmac_statistics {
+ /* Transmit */
+ u64 TxOctetsOK;
+ u64 TxOctetsBad;
+ u64 TxUnicastFramesOK;
+ u64 TxMulticastFramesOK;
+ u64 TxBroadcastFramesOK;
+ u64 TxPauseFrames;
+ u64 TxFramesWithDeferredXmissions;
+ u64 TxLateCollisions;
+ u64 TxTotalCollisions;
+ u64 TxFramesAbortedDueToXSCollisions;
+ u64 TxUnderrun;
+ u64 TxLengthErrors;
+ u64 TxInternalMACXmitError;
+ u64 TxFramesWithExcessiveDeferral;
+ u64 TxFCSErrors;
+
+ /* Receive */
+ u64 RxOctetsOK;
+ u64 RxOctetsBad;
+ u64 RxUnicastFramesOK;
+ u64 RxMulticastFramesOK;
+ u64 RxBroadcastFramesOK;
+ u64 RxPauseFrames;
+ u64 RxFCSErrors;
+ u64 RxAlignErrors;
+ u64 RxSymbolErrors;
+ u64 RxDataErrors;
+ u64 RxSequenceErrors;
+ u64 RxRuntErrors;
+ u64 RxJabberErrors;
+ u64 RxInternalMACRcvError;
+ u64 RxInRangeLengthErrors;
+ u64 RxOutOfRangeLengthField;
+ u64 RxFrameTooLongErrors;
+};
+
+struct cmac_ops {
+ void (*destroy)(struct cmac *);
+ int (*reset)(struct cmac *);
+ int (*interrupt_enable)(struct cmac *);
+ int (*interrupt_disable)(struct cmac *);
+ int (*interrupt_clear)(struct cmac *);
+ int (*interrupt_handler)(struct cmac *);
+
+ int (*enable)(struct cmac *, int);
+ int (*disable)(struct cmac *, int);
+
+ int (*loopback_enable)(struct cmac *);
+ int (*loopback_disable)(struct cmac *);
+
+ int (*set_mtu)(struct cmac *, int mtu);
+ int (*set_rx_mode)(struct cmac *, struct t1_rx_mode *rm);
+
+ int (*set_speed_duplex_fc)(struct cmac *, int speed, int duplex, int fc);
+ int (*get_speed_duplex_fc)(struct cmac *, int *speed, int *duplex,
+ int *fc);
+
+ const struct cmac_statistics *(*statistics_update)(struct cmac *, int);
+
+ int (*macaddress_get)(struct cmac *, u8 mac_addr[6]);
+ int (*macaddress_set)(struct cmac *, u8 mac_addr[6]);
+};
+
+typedef struct _cmac_instance cmac_instance;
+
+struct cmac {
+ struct cmac_statistics stats;
+ adapter_t *adapter;
+ struct cmac_ops *ops;
+ cmac_instance *instance;
+};
+
+struct gmac {
+ unsigned int stats_update_period;
+ struct cmac *(*create)(adapter_t *adapter, int index);
+ int (*reset)(adapter_t *);
+};
+
+extern struct gmac t1_pm3393_ops;
+extern struct gmac t1_chelsio_mac_ops;
+extern struct gmac t1_vsc7321_ops;
+extern struct gmac t1_ixf1010_ops;
+extern struct gmac t1_dummy_mac_ops;
+
+#endif /* _CXGB_GMAC_H_ */
diff --git a/drivers/net/chelsio/mv88x201x.c b/drivers/net/chelsio/mv88x201x.c
new file mode 100644
index 00000000000..db503428278
--- /dev/null
+++ b/drivers/net/chelsio/mv88x201x.c
@@ -0,0 +1,252 @@
+/*****************************************************************************
+ * *
+ * File: mv88x201x.c *
+ * $Revision: 1.12 $ *
+ * $Date: 2005/04/15 19:27:14 $ *
+ * Description: *
+ * Marvell PHY (mv88x201x) functionality. *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#include "cphy.h"
+#include "elmer0.h"
+
+/*
+ * The 88x2010 Rev C. requires some link status registers * to be read
+ * twice in order to get the right values. Future * revisions will fix
+ * this problem and then this macro * can disappear.
+ */
+#define MV88x2010_LINK_STATUS_BUGS 1
+
+static int led_init(struct cphy *cphy)
+{
+ /* Setup the LED registers so we can turn on/off.
+ * Writing these bits maps control to another
+ * register. mmd(0x1) addr(0x7)
+ */
+ mdio_write(cphy, 0x3, 0x8304, 0xdddd);
+ return 0;
+}
+
+static int led_link(struct cphy *cphy, u32 do_enable)
+{
+ u32 led = 0;
+#define LINK_ENABLE_BIT 0x1
+
+ mdio_read(cphy, 0x1, 0x7, &led);
+
+ if (do_enable & LINK_ENABLE_BIT) {
+ led |= LINK_ENABLE_BIT;
+ mdio_write(cphy, 0x1, 0x7, led);
+ } else {
+ led &= ~LINK_ENABLE_BIT;
+ mdio_write(cphy, 0x1, 0x7, led);
+ }
+ return 0;
+}
+
+/* Port Reset */
+static int mv88x201x_reset(struct cphy *cphy, int wait)
+{
+ /* This can be done through registers. It is not required since
+ * a full chip reset is used.
+ */
+ return 0;
+}
+
+static int mv88x201x_interrupt_enable(struct cphy *cphy)
+{
+ u32 elmer;
+
+ /* Enable PHY LASI interrupts. */
+ mdio_write(cphy, 0x1, 0x9002, 0x1);
+
+ /* Enable Marvell interrupts through Elmer0. */
+ t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer);
+ elmer |= ELMER0_GP_BIT6;
+ t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer);
+ return 0;
+}
+
+static int mv88x201x_interrupt_disable(struct cphy *cphy)
+{
+ u32 elmer;
+
+ /* Disable PHY LASI interrupts. */
+ mdio_write(cphy, 0x1, 0x9002, 0x0);
+
+ /* Disable Marvell interrupts through Elmer0. */
+ t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer);
+ elmer &= ~ELMER0_GP_BIT6;
+ t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer);
+ return 0;
+}
+
+static int mv88x201x_interrupt_clear(struct cphy *cphy)
+{
+ u32 elmer;
+ u32 val;
+
+#ifdef MV88x2010_LINK_STATUS_BUGS
+ /* Required to read twice before clear takes affect. */
+ mdio_read(cphy, 0x1, 0x9003, &val);
+ mdio_read(cphy, 0x1, 0x9004, &val);
+ mdio_read(cphy, 0x1, 0x9005, &val);
+
+ /* Read this register after the others above it else
+ * the register doesn't clear correctly.
+ */
+ mdio_read(cphy, 0x1, 0x1, &val);
+#endif
+
+ /* Clear link status. */
+ mdio_read(cphy, 0x1, 0x1, &val);
+ /* Clear PHY LASI interrupts. */
+ mdio_read(cphy, 0x1, 0x9005, &val);
+
+#ifdef MV88x2010_LINK_STATUS_BUGS
+ /* Do it again. */
+ mdio_read(cphy, 0x1, 0x9003, &val);
+ mdio_read(cphy, 0x1, 0x9004, &val);
+#endif
+
+ /* Clear Marvell interrupts through Elmer0. */
+ t1_tpi_read(cphy->adapter, A_ELMER0_INT_CAUSE, &elmer);
+ elmer |= ELMER0_GP_BIT6;
+ t1_tpi_write(cphy->adapter, A_ELMER0_INT_CAUSE, elmer);
+ return 0;
+}
+
+static int mv88x201x_interrupt_handler(struct cphy *cphy)
+{
+ /* Clear interrupts */
+ mv88x201x_interrupt_clear(cphy);
+
+ /* We have only enabled link change interrupts and so
+ * cphy_cause must be a link change interrupt.
+ */
+ return cphy_cause_link_change;
+}
+
+static int mv88x201x_set_loopback(struct cphy *cphy, int on)
+{
+ return 0;
+}
+
+static int mv88x201x_get_link_status(struct cphy *cphy, int *link_ok,
+ int *speed, int *duplex, int *fc)
+{
+ u32 val = 0;
+#define LINK_STATUS_BIT 0x4
+
+ if (link_ok) {
+ /* Read link status. */
+ mdio_read(cphy, 0x1, 0x1, &val);
+ val &= LINK_STATUS_BIT;
+ *link_ok = (val == LINK_STATUS_BIT);
+ /* Turn on/off Link LED */
+ led_link(cphy, *link_ok);
+ }
+ if (speed)
+ *speed = SPEED_10000;
+ if (duplex)
+ *duplex = DUPLEX_FULL;
+ if (fc)
+ *fc = PAUSE_RX | PAUSE_TX;
+ return 0;
+}
+
+static void mv88x201x_destroy(struct cphy *cphy)
+{
+ kfree(cphy);
+}
+
+static struct cphy_ops mv88x201x_ops = {
+ .destroy = mv88x201x_destroy,
+ .reset = mv88x201x_reset,
+ .interrupt_enable = mv88x201x_interrupt_enable,
+ .interrupt_disable = mv88x201x_interrupt_disable,
+ .interrupt_clear = mv88x201x_interrupt_clear,
+ .interrupt_handler = mv88x201x_interrupt_handler,
+ .get_link_status = mv88x201x_get_link_status,
+ .set_loopback = mv88x201x_set_loopback,
+};
+
+static struct cphy *mv88x201x_phy_create(adapter_t *adapter, int phy_addr,
+ struct mdio_ops *mdio_ops)
+{
+ u32 val;
+ struct cphy *cphy = kmalloc(sizeof(*cphy), GFP_KERNEL);
+
+ if (!cphy)
+ return NULL;
+ memset(cphy, 0, sizeof(*cphy));
+ cphy_init(cphy, adapter, phy_addr, &mv88x201x_ops, mdio_ops);
+
+ /* Commands the PHY to enable XFP's clock. */
+ mdio_read(cphy, 0x3, 0x8300, &val);
+ mdio_write(cphy, 0x3, 0x8300, val | 1);
+
+ /* Clear link status. Required because of a bug in the PHY. */
+ mdio_read(cphy, 0x1, 0x8, &val);
+ mdio_read(cphy, 0x3, 0x8, &val);
+
+ /* Allows for Link,Ack LED turn on/off */
+ led_init(cphy);
+ return cphy;
+}
+
+/* Chip Reset */
+static int mv88x201x_phy_reset(adapter_t *adapter)
+{
+ u32 val;
+
+ t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+ val &= ~4;
+ t1_tpi_write(adapter, A_ELMER0_GPO, val);
+ msleep(100);
+
+ t1_tpi_write(adapter, A_ELMER0_GPO, val | 4);
+ msleep(1000);
+
+ /* Now lets enable the Laser. Delay 100us */
+ t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+ val |= 0x8000;
+ t1_tpi_write(adapter, A_ELMER0_GPO, val);
+ udelay(100);
+ return 0;
+}
+
+struct gphy t1_mv88x201x_ops = {
+ mv88x201x_phy_create,
+ mv88x201x_phy_reset
+};
diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c
new file mode 100644
index 00000000000..04a1404fc65
--- /dev/null
+++ b/drivers/net/chelsio/pm3393.c
@@ -0,0 +1,826 @@
+/*****************************************************************************
+ * *
+ * File: pm3393.c *
+ * $Revision: 1.16 $ *
+ * $Date: 2005/05/14 00:59:32 $ *
+ * Description: *
+ * PMC/SIERRA (pm3393) MAC-PHY functionality. *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#include "common.h"
+#include "regs.h"
+#include "gmac.h"
+#include "elmer0.h"
+#include "suni1x10gexp_regs.h"
+
+/* 802.3ae 10Gb/s MDIO Manageable Device(MMD)
+ */
+enum {
+ MMD_RESERVED,
+ MMD_PMAPMD,
+ MMD_WIS,
+ MMD_PCS,
+ MMD_PHY_XGXS, /* XGMII Extender Sublayer */
+ MMD_DTE_XGXS,
+};
+
+enum {
+ PHY_XGXS_CTRL_1,
+ PHY_XGXS_STATUS_1
+};
+
+#define OFFSET(REG_ADDR) (REG_ADDR << 2)
+
+/* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */
+#define MAX_FRAME_SIZE 9600
+
+#define IPG 12
+#define TXXG_CONF1_VAL ((IPG << SUNI1x10GEXP_BITOFF_TXXG_IPGT) | \
+ SUNI1x10GEXP_BITMSK_TXXG_32BIT_ALIGN | SUNI1x10GEXP_BITMSK_TXXG_CRCEN | \
+ SUNI1x10GEXP_BITMSK_TXXG_PADEN)
+#define RXXG_CONF1_VAL (SUNI1x10GEXP_BITMSK_RXXG_PUREP | 0x14 | \
+ SUNI1x10GEXP_BITMSK_RXXG_FLCHK | SUNI1x10GEXP_BITMSK_RXXG_CRC_STRIP)
+
+/* Update statistics every 15 minutes */
+#define STATS_TICK_SECS (15 * 60)
+
+enum { /* RMON registers */
+ RxOctetsReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW,
+ RxUnicastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_4_LOW,
+ RxMulticastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_5_LOW,
+ RxBroadcastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_6_LOW,
+ RxPAUSEMACCtrlFramesReceived = SUNI1x10GEXP_REG_MSTAT_COUNTER_8_LOW,
+ RxFrameCheckSequenceErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_10_LOW,
+ RxFramesLostDueToInternalMACErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_11_LOW,
+ RxSymbolErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_12_LOW,
+ RxInRangeLengthErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_13_LOW,
+ RxFramesTooLongErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_15_LOW,
+ RxJabbers = SUNI1x10GEXP_REG_MSTAT_COUNTER_16_LOW,
+ RxFragments = SUNI1x10GEXP_REG_MSTAT_COUNTER_17_LOW,
+ RxUndersizedFrames = SUNI1x10GEXP_REG_MSTAT_COUNTER_18_LOW,
+
+ TxOctetsTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW,
+ TxFramesLostDueToInternalMACTransmissionError = SUNI1x10GEXP_REG_MSTAT_COUNTER_35_LOW,
+ TxTransmitSystemError = SUNI1x10GEXP_REG_MSTAT_COUNTER_36_LOW,
+ TxUnicastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_38_LOW,
+ TxMulticastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_40_LOW,
+ TxBroadcastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_42_LOW,
+ TxPAUSEMACCtrlFramesTransmitted = SUNI1x10GEXP_REG_MSTAT_COUNTER_43_LOW
+};
+
+struct _cmac_instance {
+ u8 enabled;
+ u8 fc;
+ u8 mac_addr[6];
+};
+
+static int pmread(struct cmac *cmac, u32 reg, u32 * data32)
+{
+ t1_tpi_read(cmac->adapter, OFFSET(reg), data32);
+ return 0;
+}
+
+static int pmwrite(struct cmac *cmac, u32 reg, u32 data32)
+{
+ t1_tpi_write(cmac->adapter, OFFSET(reg), data32);
+ return 0;
+}
+
+/* Port reset. */
+static int pm3393_reset(struct cmac *cmac)
+{
+ return 0;
+}
+
+/*
+ * Enable interrupts for the PM3393
+
+ 1. Enable PM3393 BLOCK interrupts.
+ 2. Enable PM3393 Master Interrupt bit(INTE)
+ 3. Enable ELMER's PM3393 bit.
+ 4. Enable Terminator external interrupt.
+*/
+static int pm3393_interrupt_enable(struct cmac *cmac)
+{
+ u32 pl_intr;
+
+ /* PM3393 - Enabling all hardware block interrupts.
+ */
+ pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0xffff);
+
+ /* Don't interrupt on statistics overflow, we are polling */
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0);
+
+ pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0xffff);
+
+ /* PM3393 - Global interrupt enable
+ */
+ /* TBD XXX Disable for now until we figure out why error interrupts keep asserting. */
+ pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE,
+ 0 /*SUNI1x10GEXP_BITMSK_TOP_INTE */ );
+
+ /* TERMINATOR - PL_INTERUPTS_EXT */
+ pl_intr = readl(cmac->adapter->regs + A_PL_ENABLE);
+ pl_intr |= F_PL_INTR_EXT;
+ writel(pl_intr, cmac->adapter->regs + A_PL_ENABLE);
+ return 0;
+}
+
+static int pm3393_interrupt_disable(struct cmac *cmac)
+{
+ u32 elmer;
+
+ /* PM3393 - Enabling HW interrupt blocks. */
+ pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0);
+ pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0);
+
+ /* PM3393 - Global interrupt enable */
+ pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE, 0);
+
+ /* ELMER - External chip interrupts. */
+ t1_tpi_read(cmac->adapter, A_ELMER0_INT_ENABLE, &elmer);
+ elmer &= ~ELMER0_GP_BIT1;
+ t1_tpi_write(cmac->adapter, A_ELMER0_INT_ENABLE, elmer);
+
+ /* TERMINATOR - PL_INTERUPTS_EXT */
+ /* DO NOT DISABLE TERMINATOR's EXTERNAL INTERRUPTS. ANOTHER CHIP
+ * COULD WANT THEM ENABLED. We disable PM3393 at the ELMER level.
+ */
+
+ return 0;
+}
+
+static int pm3393_interrupt_clear(struct cmac *cmac)
+{
+ u32 elmer;
+ u32 pl_intr;
+ u32 val32;
+
+ /* PM3393 - Clearing HW interrupt blocks. Note, this assumes
+ * bit WCIMODE=0 for a clear-on-read.
+ */
+ pmread(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_STATUS, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_STATUS, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_STATUS, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_STATUS, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_STATUS, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_INTERRUPT, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_STATUS, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_RXXG_INTERRUPT, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_TXXG_INTERRUPT, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_INDICATION,
+ &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_STATUS, &val32);
+ pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_CHANGE, &val32);
+
+ /* PM3393 - Global interrupt status
+ */
+ pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS, &val32);
+
+ /* ELMER - External chip interrupts.
+ */
+ t1_tpi_read(cmac->adapter, A_ELMER0_INT_CAUSE, &elmer);
+ elmer |= ELMER0_GP_BIT1;
+ t1_tpi_write(cmac->adapter, A_ELMER0_INT_CAUSE, elmer);
+
+ /* TERMINATOR - PL_INTERUPTS_EXT
+ */
+ pl_intr = readl(cmac->adapter->regs + A_PL_CAUSE);
+ pl_intr |= F_PL_INTR_EXT;
+ writel(pl_intr, cmac->adapter->regs + A_PL_CAUSE);
+
+ return 0;
+}
+
+/* Interrupt handler */
+static int pm3393_interrupt_handler(struct cmac *cmac)
+{
+ u32 master_intr_status;
+/*
+ 1. Read master interrupt register.
+ 2. Read BLOCK's interrupt status registers.
+ 3. Handle BLOCK interrupts.
+*/
+ /* Read the master interrupt status register. */
+ pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS,
+ &master_intr_status);
+
+ /* TBD XXX Lets just clear everything for now */
+ pm3393_interrupt_clear(cmac);
+
+ return 0;
+}
+
+static int pm3393_enable(struct cmac *cmac, int which)
+{
+ if (which & MAC_DIRECTION_RX)
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1,
+ (RXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_RXXG_RXEN));
+
+ if (which & MAC_DIRECTION_TX) {
+ u32 val = TXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_TXXG_TXEN0;
+
+ if (cmac->instance->fc & PAUSE_RX)
+ val |= SUNI1x10GEXP_BITMSK_TXXG_FCRX;
+ if (cmac->instance->fc & PAUSE_TX)
+ val |= SUNI1x10GEXP_BITMSK_TXXG_FCTX;
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, val);
+ }
+
+ cmac->instance->enabled |= which;
+ return 0;
+}
+
+static int pm3393_enable_port(struct cmac *cmac, int which)
+{
+ /* Clear port statistics */
+ pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_CONTROL,
+ SUNI1x10GEXP_BITMSK_MSTAT_CLEAR);
+ udelay(2);
+ memset(&cmac->stats, 0, sizeof(struct cmac_statistics));
+
+ pm3393_enable(cmac, which);
+
+ /*
+ * XXX This should be done by the PHY and preferrably not at all.
+ * The PHY doesn't give us link status indication on its own so have
+ * the link management code query it instead.
+ */
+ {
+ extern void link_changed(adapter_t *adapter, int port_id);
+
+ link_changed(cmac->adapter, 0);
+ }
+ return 0;
+}
+
+static int pm3393_disable(struct cmac *cmac, int which)
+{
+ if (which & MAC_DIRECTION_RX)
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1, RXXG_CONF1_VAL);
+ if (which & MAC_DIRECTION_TX)
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, TXXG_CONF1_VAL);
+
+ /*
+ * The disable is graceful. Give the PM3393 time. Can't wait very
+ * long here, we may be holding locks.
+ */
+ udelay(20);
+
+ cmac->instance->enabled &= ~which;
+ return 0;
+}
+
+static int pm3393_loopback_enable(struct cmac *cmac)
+{
+ return 0;
+}
+
+static int pm3393_loopback_disable(struct cmac *cmac)
+{
+ return 0;
+}
+
+static int pm3393_set_mtu(struct cmac *cmac, int mtu)
+{
+ int enabled = cmac->instance->enabled;
+
+ /* MAX_FRAME_SIZE includes header + FCS, mtu doesn't */
+ mtu += 14 + 4;
+ if (mtu > MAX_FRAME_SIZE)
+ return -EINVAL;
+
+ /* Disable Rx/Tx MAC before configuring it. */
+ if (enabled)
+ pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
+
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MAX_FRAME_LENGTH, mtu);
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_MAX_FRAME_SIZE, mtu);
+
+ if (enabled)
+ pm3393_enable(cmac, enabled);
+ return 0;
+}
+
+static u32 calc_crc(u8 *b, int len)
+{
+ int i;
+ u32 crc = (u32)~0;
+
+ /* calculate crc one bit at a time */
+ while (len--) {
+ crc ^= *b++;
+ for (i = 0; i < 8; i++) {
+ if (crc & 0x1)
+ crc = (crc >> 1) ^ 0xedb88320;
+ else
+ crc = (crc >> 1);
+ }
+ }
+
+ /* reverse bits */
+ crc = ((crc >> 4) & 0x0f0f0f0f) | ((crc << 4) & 0xf0f0f0f0);
+ crc = ((crc >> 2) & 0x33333333) | ((crc << 2) & 0xcccccccc);
+ crc = ((crc >> 1) & 0x55555555) | ((crc << 1) & 0xaaaaaaaa);
+ /* swap bytes */
+ crc = (crc >> 16) | (crc << 16);
+ crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
+
+ return crc;
+}
+
+static int pm3393_set_rx_mode(struct cmac *cmac, struct t1_rx_mode *rm)
+{
+ int enabled = cmac->instance->enabled & MAC_DIRECTION_RX;
+ u32 rx_mode;
+
+ /* Disable MAC RX before reconfiguring it */
+ if (enabled)
+ pm3393_disable(cmac, MAC_DIRECTION_RX);
+
+ pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, &rx_mode);
+ rx_mode &= ~(SUNI1x10GEXP_BITMSK_RXXG_PMODE |
+ SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2,
+ (u16)rx_mode);
+
+ if (t1_rx_mode_promisc(rm)) {
+ /* Promiscuous mode. */
+ rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_PMODE;
+ }
+ if (t1_rx_mode_allmulti(rm)) {
+ /* Accept all multicast. */
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, 0xffff);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, 0xffff);
+ rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN;
+ } else if (t1_rx_mode_mc_cnt(rm)) {
+ /* Accept one or more multicast(s). */
+ u8 *addr;
+ int bit;
+ u16 mc_filter[4] = { 0, };
+
+ while ((addr = t1_get_next_mcaddr(rm))) {
+ bit = (calc_crc(addr, ETH_ALEN) >> 23) & 0x3f; /* bit[23:28] */
+ mc_filter[bit >> 4] |= 1 << (bit & 0xf);
+ }
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, mc_filter[0]);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, mc_filter[1]);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, mc_filter[2]);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, mc_filter[3]);
+ rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN;
+ }
+
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, (u16)rx_mode);
+
+ if (enabled)
+ pm3393_enable(cmac, MAC_DIRECTION_RX);
+
+ return 0;
+}
+
+static int pm3393_get_speed_duplex_fc(struct cmac *cmac, int *speed,
+ int *duplex, int *fc)
+{
+ if (speed)
+ *speed = SPEED_10000;
+ if (duplex)
+ *duplex = DUPLEX_FULL;
+ if (fc)
+ *fc = cmac->instance->fc;
+ return 0;
+}
+
+static int pm3393_set_speed_duplex_fc(struct cmac *cmac, int speed, int duplex,
+ int fc)
+{
+ if (speed >= 0 && speed != SPEED_10000)
+ return -1;
+ if (duplex >= 0 && duplex != DUPLEX_FULL)
+ return -1;
+ if (fc & ~(PAUSE_TX | PAUSE_RX))
+ return -1;
+
+ if (fc != cmac->instance->fc) {
+ cmac->instance->fc = (u8) fc;
+ if (cmac->instance->enabled & MAC_DIRECTION_TX)
+ pm3393_enable(cmac, MAC_DIRECTION_TX);
+ }
+ return 0;
+}
+
+#define RMON_UPDATE(mac, name, stat_name) \
+ { \
+ t1_tpi_read((mac)->adapter, OFFSET(name), &val0); \
+ t1_tpi_read((mac)->adapter, OFFSET(((name)+1)), &val1); \
+ t1_tpi_read((mac)->adapter, OFFSET(((name)+2)), &val2); \
+ (mac)->stats.stat_name = ((u64)val0 & 0xffff) | \
+ (((u64)val1 & 0xffff) << 16) | \
+ (((u64)val2 & 0xff) << 32) | \
+ ((mac)->stats.stat_name & \
+ (~(u64)0 << 40)); \
+ if (ro & \
+ ((name - SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW) >> 2)) \
+ (mac)->stats.stat_name += ((u64)1 << 40); \
+ }
+
+static const struct cmac_statistics *pm3393_update_statistics(struct cmac *mac,
+ int flag)
+{
+ u64 ro;
+ u32 val0, val1, val2, val3;
+
+ /* Snap the counters */
+ pmwrite(mac, SUNI1x10GEXP_REG_MSTAT_CONTROL,
+ SUNI1x10GEXP_BITMSK_MSTAT_SNAP);
+
+ /* Counter rollover, clear on read */
+ pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_0, &val0);
+ pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_1, &val1);
+ pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_2, &val2);
+ pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_3, &val3);
+ ro = ((u64)val0 & 0xffff) | (((u64)val1 & 0xffff) << 16) |
+ (((u64)val2 & 0xffff) << 32) | (((u64)val3 & 0xffff) << 48);
+
+ /* Rx stats */
+ RMON_UPDATE(mac, RxOctetsReceivedOK, RxOctetsOK);
+ RMON_UPDATE(mac, RxUnicastFramesReceivedOK, RxUnicastFramesOK);
+ RMON_UPDATE(mac, RxMulticastFramesReceivedOK, RxMulticastFramesOK);
+ RMON_UPDATE(mac, RxBroadcastFramesReceivedOK, RxBroadcastFramesOK);
+ RMON_UPDATE(mac, RxPAUSEMACCtrlFramesReceived, RxPauseFrames);
+ RMON_UPDATE(mac, RxFrameCheckSequenceErrors, RxFCSErrors);
+ RMON_UPDATE(mac, RxFramesLostDueToInternalMACErrors,
+ RxInternalMACRcvError);
+ RMON_UPDATE(mac, RxSymbolErrors, RxSymbolErrors);
+ RMON_UPDATE(mac, RxInRangeLengthErrors, RxInRangeLengthErrors);
+ RMON_UPDATE(mac, RxFramesTooLongErrors , RxFrameTooLongErrors);
+ RMON_UPDATE(mac, RxJabbers, RxJabberErrors);
+ RMON_UPDATE(mac, RxFragments, RxRuntErrors);
+ RMON_UPDATE(mac, RxUndersizedFrames, RxRuntErrors);
+
+ /* Tx stats */
+ RMON_UPDATE(mac, TxOctetsTransmittedOK, TxOctetsOK);
+ RMON_UPDATE(mac, TxFramesLostDueToInternalMACTransmissionError,
+ TxInternalMACXmitError);
+ RMON_UPDATE(mac, TxTransmitSystemError, TxFCSErrors);
+ RMON_UPDATE(mac, TxUnicastFramesTransmittedOK, TxUnicastFramesOK);
+ RMON_UPDATE(mac, TxMulticastFramesTransmittedOK, TxMulticastFramesOK);
+ RMON_UPDATE(mac, TxBroadcastFramesTransmittedOK, TxBroadcastFramesOK);
+ RMON_UPDATE(mac, TxPAUSEMACCtrlFramesTransmitted, TxPauseFrames);
+
+ return &mac->stats;
+}
+
+static int pm3393_macaddress_get(struct cmac *cmac, u8 mac_addr[6])
+{
+ memcpy(mac_addr, cmac->instance->mac_addr, 6);
+ return 0;
+}
+
+static int pm3393_macaddress_set(struct cmac *cmac, u8 ma[6])
+{
+ u32 val, lo, mid, hi, enabled = cmac->instance->enabled;
+
+ /*
+ * MAC addr: 00:07:43:00:13:09
+ *
+ * ma[5] = 0x09
+ * ma[4] = 0x13
+ * ma[3] = 0x00
+ * ma[2] = 0x43
+ * ma[1] = 0x07
+ * ma[0] = 0x00
+ *
+ * The PM3393 requires byte swapping and reverse order entry
+ * when programming MAC addresses:
+ *
+ * low_bits[15:0] = ma[1]:ma[0]
+ * mid_bits[31:16] = ma[3]:ma[2]
+ * high_bits[47:32] = ma[5]:ma[4]
+ */
+
+ /* Store local copy */
+ memcpy(cmac->instance->mac_addr, ma, 6);
+
+ lo = ((u32) ma[1] << 8) | (u32) ma[0];
+ mid = ((u32) ma[3] << 8) | (u32) ma[2];
+ hi = ((u32) ma[5] << 8) | (u32) ma[4];
+
+ /* Disable Rx/Tx MAC before configuring it. */
+ if (enabled)
+ pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
+
+ /* Set RXXG Station Address */
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_15_0, lo);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_31_16, mid);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_47_32, hi);
+
+ /* Set TXXG Station Address */
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_15_0, lo);
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_31_16, mid);
+ pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_47_32, hi);
+
+ /* Setup Exact Match Filter 1 with our MAC address
+ *
+ * Must disable exact match filter before configuring it.
+ */
+ pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, &val);
+ val &= 0xff0f;
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val);
+
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_LOW, lo);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_MID, mid);
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_HIGH, hi);
+
+ val |= 0x0090;
+ pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val);
+
+ if (enabled)
+ pm3393_enable(cmac, enabled);
+ return 0;
+}
+
+static void pm3393_destroy(struct cmac *cmac)
+{
+ kfree(cmac);
+}
+
+static struct cmac_ops pm3393_ops = {
+ .destroy = pm3393_destroy,
+ .reset = pm3393_reset,
+ .interrupt_enable = pm3393_interrupt_enable,
+ .interrupt_disable = pm3393_interrupt_disable,
+ .interrupt_clear = pm3393_interrupt_clear,
+ .interrupt_handler = pm3393_interrupt_handler,
+ .enable = pm3393_enable_port,
+ .disable = pm3393_disable,
+ .loopback_enable = pm3393_loopback_enable,
+ .loopback_disable = pm3393_loopback_disable,
+ .set_mtu = pm3393_set_mtu,
+ .set_rx_mode = pm3393_set_rx_mode,
+ .get_speed_duplex_fc = pm3393_get_speed_duplex_fc,
+ .set_speed_duplex_fc = pm3393_set_speed_duplex_fc,
+ .statistics_update = pm3393_update_statistics,
+ .macaddress_get = pm3393_macaddress_get,
+ .macaddress_set = pm3393_macaddress_set
+};
+
+static struct cmac *pm3393_mac_create(adapter_t *adapter, int index)
+{
+ struct cmac *cmac;
+
+ cmac = kmalloc(sizeof(*cmac) + sizeof(cmac_instance), GFP_KERNEL);
+ if (!cmac)
+ return NULL;
+ memset(cmac, 0, sizeof(*cmac));
+
+ cmac->ops = &pm3393_ops;
+ cmac->instance = (cmac_instance *) (cmac + 1);
+ cmac->adapter = adapter;
+ cmac->instance->fc = PAUSE_TX | PAUSE_RX;
+
+ t1_tpi_write(adapter, OFFSET(0x0001), 0x00008000);
+ t1_tpi_write(adapter, OFFSET(0x0001), 0x00000000);
+ t1_tpi_write(adapter, OFFSET(0x2308), 0x00009800);
+ t1_tpi_write(adapter, OFFSET(0x2305), 0x00001001); /* PL4IO Enable */
+ t1_tpi_write(adapter, OFFSET(0x2320), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2321), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2322), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2323), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2324), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2325), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2326), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2327), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2328), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x2329), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x232a), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x232b), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x232c), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x232d), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x232e), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x232f), 0x00008800);
+ t1_tpi_write(adapter, OFFSET(0x230d), 0x00009c00);
+ t1_tpi_write(adapter, OFFSET(0x2304), 0x00000202); /* PL4IO Calendar Repetitions */
+
+ t1_tpi_write(adapter, OFFSET(0x3200), 0x00008080); /* EFLX Enable */
+ t1_tpi_write(adapter, OFFSET(0x3210), 0x00000000); /* EFLX Channel Deprovision */
+ t1_tpi_write(adapter, OFFSET(0x3203), 0x00000000); /* EFLX Low Limit */
+ t1_tpi_write(adapter, OFFSET(0x3204), 0x00000040); /* EFLX High Limit */
+ t1_tpi_write(adapter, OFFSET(0x3205), 0x000002cc); /* EFLX Almost Full */
+ t1_tpi_write(adapter, OFFSET(0x3206), 0x00000199); /* EFLX Almost Empty */
+ t1_tpi_write(adapter, OFFSET(0x3207), 0x00000240); /* EFLX Cut Through Threshold */
+ t1_tpi_write(adapter, OFFSET(0x3202), 0x00000000); /* EFLX Indirect Register Update */
+ t1_tpi_write(adapter, OFFSET(0x3210), 0x00000001); /* EFLX Channel Provision */
+ t1_tpi_write(adapter, OFFSET(0x3208), 0x0000ffff); /* EFLX Undocumented */
+ t1_tpi_write(adapter, OFFSET(0x320a), 0x0000ffff); /* EFLX Undocumented */
+ t1_tpi_write(adapter, OFFSET(0x320c), 0x0000ffff); /* EFLX enable overflow interrupt The other bit are undocumented */
+ t1_tpi_write(adapter, OFFSET(0x320e), 0x0000ffff); /* EFLX Undocumented */
+
+ t1_tpi_write(adapter, OFFSET(0x2200), 0x0000c000); /* IFLX Configuration - enable */
+ t1_tpi_write(adapter, OFFSET(0x2201), 0x00000000); /* IFLX Channel Deprovision */
+ t1_tpi_write(adapter, OFFSET(0x220e), 0x00000000); /* IFLX Low Limit */
+ t1_tpi_write(adapter, OFFSET(0x220f), 0x00000100); /* IFLX High Limit */
+ t1_tpi_write(adapter, OFFSET(0x2210), 0x00000c00); /* IFLX Almost Full Limit */
+ t1_tpi_write(adapter, OFFSET(0x2211), 0x00000599); /* IFLX Almost Empty Limit */
+ t1_tpi_write(adapter, OFFSET(0x220d), 0x00000000); /* IFLX Indirect Register Update */
+ t1_tpi_write(adapter, OFFSET(0x2201), 0x00000001); /* IFLX Channel Provision */
+ t1_tpi_write(adapter, OFFSET(0x2203), 0x0000ffff); /* IFLX Undocumented */
+ t1_tpi_write(adapter, OFFSET(0x2205), 0x0000ffff); /* IFLX Undocumented */
+ t1_tpi_write(adapter, OFFSET(0x2209), 0x0000ffff); /* IFLX Enable overflow interrupt. The other bit are undocumented */
+
+ t1_tpi_write(adapter, OFFSET(0x2241), 0xfffffffe); /* PL4MOS Undocumented */
+ t1_tpi_write(adapter, OFFSET(0x2242), 0x0000ffff); /* PL4MOS Undocumented */
+ t1_tpi_write(adapter, OFFSET(0x2243), 0x00000008); /* PL4MOS Starving Burst Size */
+ t1_tpi_write(adapter, OFFSET(0x2244), 0x00000008); /* PL4MOS Hungry Burst Size */
+ t1_tpi_write(adapter, OFFSET(0x2245), 0x00000008); /* PL4MOS Transfer Size */
+ t1_tpi_write(adapter, OFFSET(0x2240), 0x00000005); /* PL4MOS Disable */
+
+ t1_tpi_write(adapter, OFFSET(0x2280), 0x00002103); /* PL4ODP Training Repeat and SOP rule */
+ t1_tpi_write(adapter, OFFSET(0x2284), 0x00000000); /* PL4ODP MAX_T setting */
+
+ t1_tpi_write(adapter, OFFSET(0x3280), 0x00000087); /* PL4IDU Enable data forward, port state machine. Set ALLOW_NON_ZERO_OLB */
+ t1_tpi_write(adapter, OFFSET(0x3282), 0x0000001f); /* PL4IDU Enable Dip4 check error interrupts */
+
+ t1_tpi_write(adapter, OFFSET(0x3040), 0x0c32); /* # TXXG Config */
+ /* For T1 use timer based Mac flow control. */
+ t1_tpi_write(adapter, OFFSET(0x304d), 0x8000);
+ t1_tpi_write(adapter, OFFSET(0x2040), 0x059c); /* # RXXG Config */
+ t1_tpi_write(adapter, OFFSET(0x2049), 0x0001); /* # RXXG Cut Through */
+ t1_tpi_write(adapter, OFFSET(0x2070), 0x0000); /* # Disable promiscuous mode */
+
+ /* Setup Exact Match Filter 0 to allow broadcast packets.
+ */
+ t1_tpi_write(adapter, OFFSET(0x206e), 0x0000); /* # Disable Match Enable bit */
+ t1_tpi_write(adapter, OFFSET(0x204a), 0xffff); /* # low addr */
+ t1_tpi_write(adapter, OFFSET(0x204b), 0xffff); /* # mid addr */
+ t1_tpi_write(adapter, OFFSET(0x204c), 0xffff); /* # high addr */
+ t1_tpi_write(adapter, OFFSET(0x206e), 0x0009); /* # Enable Match Enable bit */
+
+ t1_tpi_write(adapter, OFFSET(0x0003), 0x0000); /* # NO SOP/ PAD_EN setup */
+ t1_tpi_write(adapter, OFFSET(0x0100), 0x0ff0); /* # RXEQB disabled */
+ t1_tpi_write(adapter, OFFSET(0x0101), 0x0f0f); /* # No Preemphasis */
+
+ return cmac;
+}
+
+static int pm3393_mac_reset(adapter_t * adapter)
+{
+ u32 val;
+ u32 x;
+ u32 is_pl4_reset_finished;
+ u32 is_pl4_outof_lock;
+ u32 is_xaui_mabc_pll_locked;
+ u32 successful_reset;
+ int i;
+
+ /* The following steps are required to properly reset
+ * the PM3393. This information is provided in the
+ * PM3393 datasheet (Issue 2: November 2002)
+ * section 13.1 -- Device Reset.
+ *
+ * The PM3393 has three types of components that are
+ * individually reset:
+ *
+ * DRESETB - Digital circuitry
+ * PL4_ARESETB - PL4 analog circuitry
+ * XAUI_ARESETB - XAUI bus analog circuitry
+ *
+ * Steps to reset PM3393 using RSTB pin:
+ *
+ * 1. Assert RSTB pin low ( write 0 )
+ * 2. Wait at least 1ms to initiate a complete initialization of device.
+ * 3. Wait until all external clocks and REFSEL are stable.
+ * 4. Wait minimum of 1ms. (after external clocks and REFEL are stable)
+ * 5. De-assert RSTB ( write 1 )
+ * 6. Wait until internal timers to expires after ~14ms.
+ * - Allows analog clock synthesizer(PL4CSU) to stabilize to
+ * selected reference frequency before allowing the digital
+ * portion of the device to operate.
+ * 7. Wait at least 200us for XAUI interface to stabilize.
+ * 8. Verify the PM3393 came out of reset successfully.
+ * Set successful reset flag if everything worked else try again
+ * a few more times.
+ */
+
+ successful_reset = 0;
+ for (i = 0; i < 3 && !successful_reset; i++) {
+ /* 1 */
+ t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+ val &= ~1;
+ t1_tpi_write(adapter, A_ELMER0_GPO, val);
+
+ /* 2 */
+ msleep(1);
+
+ /* 3 */
+ msleep(1);
+
+ /* 4 */
+ msleep(2 /*1 extra ms for safety */ );
+
+ /* 5 */
+ val |= 1;
+ t1_tpi_write(adapter, A_ELMER0_GPO, val);
+
+ /* 6 */
+ msleep(15 /*1 extra ms for safety */ );
+
+ /* 7 */
+ msleep(1);
+
+ /* 8 */
+
+ /* Has PL4 analog block come out of reset correctly? */
+ t1_tpi_read(adapter, OFFSET(SUNI1x10GEXP_REG_DEVICE_STATUS), &val);
+ is_pl4_reset_finished = (val & SUNI1x10GEXP_BITMSK_TOP_EXPIRED);
+
+ /* TBD XXX SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL gets locked later in the init sequence
+ * figure out why? */
+
+ /* Have all PL4 block clocks locked? */
+ x = (SUNI1x10GEXP_BITMSK_TOP_PL4_ID_DOOL
+ /*| SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL */ |
+ SUNI1x10GEXP_BITMSK_TOP_PL4_ID_ROOL |
+ SUNI1x10GEXP_BITMSK_TOP_PL4_IS_ROOL |
+ SUNI1x10GEXP_BITMSK_TOP_PL4_OUT_ROOL);
+ is_pl4_outof_lock = (val & x);
+
+ /* ??? If this fails, might be able to software reset the XAUI part
+ * and try to recover... thus saving us from doing another HW reset */
+ /* Has the XAUI MABC PLL circuitry stablized? */
+ is_xaui_mabc_pll_locked =
+ (val & SUNI1x10GEXP_BITMSK_TOP_SXRA_EXPIRED);
+
+ successful_reset = (is_pl4_reset_finished && !is_pl4_outof_lock
+ && is_xaui_mabc_pll_locked);
+ }
+ return successful_reset ? 0 : 1;
+}
+
+struct gmac t1_pm3393_ops = {
+ STATS_TICK_SECS,
+ pm3393_mac_create,
+ pm3393_mac_reset
+};
diff --git a/drivers/net/chelsio/regs.h b/drivers/net/chelsio/regs.h
new file mode 100644
index 00000000000..b90e11f40d1
--- /dev/null
+++ b/drivers/net/chelsio/regs.h
@@ -0,0 +1,468 @@
+/*****************************************************************************
+ * *
+ * File: regs.h *
+ * $Revision: 1.8 $ *
+ * $Date: 2005/06/21 18:29:48 $ *
+ * Description: *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_REGS_H_
+#define _CXGB_REGS_H_
+
+/* SGE registers */
+#define A_SG_CONTROL 0x0
+
+#define S_CMDQ0_ENABLE 0
+#define V_CMDQ0_ENABLE(x) ((x) << S_CMDQ0_ENABLE)
+#define F_CMDQ0_ENABLE V_CMDQ0_ENABLE(1U)
+
+#define S_CMDQ1_ENABLE 1
+#define V_CMDQ1_ENABLE(x) ((x) << S_CMDQ1_ENABLE)
+#define F_CMDQ1_ENABLE V_CMDQ1_ENABLE(1U)
+
+#define S_FL0_ENABLE 2
+#define V_FL0_ENABLE(x) ((x) << S_FL0_ENABLE)
+#define F_FL0_ENABLE V_FL0_ENABLE(1U)
+
+#define S_FL1_ENABLE 3
+#define V_FL1_ENABLE(x) ((x) << S_FL1_ENABLE)
+#define F_FL1_ENABLE V_FL1_ENABLE(1U)
+
+#define S_CPL_ENABLE 4
+#define V_CPL_ENABLE(x) ((x) << S_CPL_ENABLE)
+#define F_CPL_ENABLE V_CPL_ENABLE(1U)
+
+#define S_RESPONSE_QUEUE_ENABLE 5
+#define V_RESPONSE_QUEUE_ENABLE(x) ((x) << S_RESPONSE_QUEUE_ENABLE)
+#define F_RESPONSE_QUEUE_ENABLE V_RESPONSE_QUEUE_ENABLE(1U)
+
+#define S_CMDQ_PRIORITY 6
+#define M_CMDQ_PRIORITY 0x3
+#define V_CMDQ_PRIORITY(x) ((x) << S_CMDQ_PRIORITY)
+#define G_CMDQ_PRIORITY(x) (((x) >> S_CMDQ_PRIORITY) & M_CMDQ_PRIORITY)
+
+#define S_DISABLE_CMDQ1_GTS 9
+#define V_DISABLE_CMDQ1_GTS(x) ((x) << S_DISABLE_CMDQ1_GTS)
+#define F_DISABLE_CMDQ1_GTS V_DISABLE_CMDQ1_GTS(1U)
+
+#define S_DISABLE_FL0_GTS 10
+#define V_DISABLE_FL0_GTS(x) ((x) << S_DISABLE_FL0_GTS)
+#define F_DISABLE_FL0_GTS V_DISABLE_FL0_GTS(1U)
+
+#define S_DISABLE_FL1_GTS 11
+#define V_DISABLE_FL1_GTS(x) ((x) << S_DISABLE_FL1_GTS)
+#define F_DISABLE_FL1_GTS V_DISABLE_FL1_GTS(1U)
+
+#define S_ENABLE_BIG_ENDIAN 12
+#define V_ENABLE_BIG_ENDIAN(x) ((x) << S_ENABLE_BIG_ENDIAN)
+#define F_ENABLE_BIG_ENDIAN V_ENABLE_BIG_ENDIAN(1U)
+
+#define S_ISCSI_COALESCE 14
+#define V_ISCSI_COALESCE(x) ((x) << S_ISCSI_COALESCE)
+#define F_ISCSI_COALESCE V_ISCSI_COALESCE(1U)
+
+#define S_RX_PKT_OFFSET 15
+#define V_RX_PKT_OFFSET(x) ((x) << S_RX_PKT_OFFSET)
+
+#define S_VLAN_XTRACT 18
+#define V_VLAN_XTRACT(x) ((x) << S_VLAN_XTRACT)
+#define F_VLAN_XTRACT V_VLAN_XTRACT(1U)
+
+#define A_SG_DOORBELL 0x4
+#define A_SG_CMD0BASELWR 0x8
+#define A_SG_CMD0BASEUPR 0xc
+#define A_SG_CMD1BASELWR 0x10
+#define A_SG_CMD1BASEUPR 0x14
+#define A_SG_FL0BASELWR 0x18
+#define A_SG_FL0BASEUPR 0x1c
+#define A_SG_FL1BASELWR 0x20
+#define A_SG_FL1BASEUPR 0x24
+#define A_SG_CMD0SIZE 0x28
+#define A_SG_FL0SIZE 0x2c
+#define A_SG_RSPSIZE 0x30
+#define A_SG_RSPBASELWR 0x34
+#define A_SG_RSPBASEUPR 0x38
+#define A_SG_FLTHRESHOLD 0x3c
+#define A_SG_RSPQUEUECREDIT 0x40
+#define A_SG_SLEEPING 0x48
+#define A_SG_INTRTIMER 0x4c
+#define A_SG_CMD1SIZE 0xb0
+#define A_SG_FL1SIZE 0xb4
+#define A_SG_INT_ENABLE 0xb8
+
+#define S_RESPQ_EXHAUSTED 0
+#define V_RESPQ_EXHAUSTED(x) ((x) << S_RESPQ_EXHAUSTED)
+#define F_RESPQ_EXHAUSTED V_RESPQ_EXHAUSTED(1U)
+
+#define S_RESPQ_OVERFLOW 1
+#define V_RESPQ_OVERFLOW(x) ((x) << S_RESPQ_OVERFLOW)
+#define F_RESPQ_OVERFLOW V_RESPQ_OVERFLOW(1U)
+
+#define S_FL_EXHAUSTED 2
+#define V_FL_EXHAUSTED(x) ((x) << S_FL_EXHAUSTED)
+#define F_FL_EXHAUSTED V_FL_EXHAUSTED(1U)
+
+#define S_PACKET_TOO_BIG 3
+#define V_PACKET_TOO_BIG(x) ((x) << S_PACKET_TOO_BIG)
+#define F_PACKET_TOO_BIG V_PACKET_TOO_BIG(1U)
+
+#define S_PACKET_MISMATCH 4
+#define V_PACKET_MISMATCH(x) ((x) << S_PACKET_MISMATCH)
+#define F_PACKET_MISMATCH V_PACKET_MISMATCH(1U)
+
+#define A_SG_INT_CAUSE 0xbc
+#define A_SG_RESPACCUTIMER 0xc0
+
+/* MC3 registers */
+
+#define S_READY 1
+#define V_READY(x) ((x) << S_READY)
+#define F_READY V_READY(1U)
+
+/* MC4 registers */
+
+#define A_MC4_CFG 0x180
+#define S_MC4_SLOW 25
+#define V_MC4_SLOW(x) ((x) << S_MC4_SLOW)
+#define F_MC4_SLOW V_MC4_SLOW(1U)
+
+/* TPI registers */
+
+#define A_TPI_ADDR 0x280
+#define A_TPI_WR_DATA 0x284
+#define A_TPI_RD_DATA 0x288
+#define A_TPI_CSR 0x28c
+
+#define S_TPIWR 0
+#define V_TPIWR(x) ((x) << S_TPIWR)
+#define F_TPIWR V_TPIWR(1U)
+
+#define S_TPIRDY 1
+#define V_TPIRDY(x) ((x) << S_TPIRDY)
+#define F_TPIRDY V_TPIRDY(1U)
+
+#define A_TPI_PAR 0x29c
+
+#define S_TPIPAR 0
+#define M_TPIPAR 0x7f
+#define V_TPIPAR(x) ((x) << S_TPIPAR)
+#define G_TPIPAR(x) (((x) >> S_TPIPAR) & M_TPIPAR)
+
+/* TP registers */
+
+#define A_TP_IN_CONFIG 0x300
+
+#define S_TP_IN_CSPI_CPL 3
+#define V_TP_IN_CSPI_CPL(x) ((x) << S_TP_IN_CSPI_CPL)
+#define F_TP_IN_CSPI_CPL V_TP_IN_CSPI_CPL(1U)
+
+#define S_TP_IN_CSPI_CHECK_IP_CSUM 5
+#define V_TP_IN_CSPI_CHECK_IP_CSUM(x) ((x) << S_TP_IN_CSPI_CHECK_IP_CSUM)
+#define F_TP_IN_CSPI_CHECK_IP_CSUM V_TP_IN_CSPI_CHECK_IP_CSUM(1U)
+
+#define S_TP_IN_CSPI_CHECK_TCP_CSUM 6
+#define V_TP_IN_CSPI_CHECK_TCP_CSUM(x) ((x) << S_TP_IN_CSPI_CHECK_TCP_CSUM)
+#define F_TP_IN_CSPI_CHECK_TCP_CSUM V_TP_IN_CSPI_CHECK_TCP_CSUM(1U)
+
+#define S_TP_IN_ESPI_ETHERNET 8
+#define V_TP_IN_ESPI_ETHERNET(x) ((x) << S_TP_IN_ESPI_ETHERNET)
+#define F_TP_IN_ESPI_ETHERNET V_TP_IN_ESPI_ETHERNET(1U)
+
+#define S_TP_IN_ESPI_CHECK_IP_CSUM 12
+#define V_TP_IN_ESPI_CHECK_IP_CSUM(x) ((x) << S_TP_IN_ESPI_CHECK_IP_CSUM)
+#define F_TP_IN_ESPI_CHECK_IP_CSUM V_TP_IN_ESPI_CHECK_IP_CSUM(1U)
+
+#define S_TP_IN_ESPI_CHECK_TCP_CSUM 13
+#define V_TP_IN_ESPI_CHECK_TCP_CSUM(x) ((x) << S_TP_IN_ESPI_CHECK_TCP_CSUM)
+#define F_TP_IN_ESPI_CHECK_TCP_CSUM V_TP_IN_ESPI_CHECK_TCP_CSUM(1U)
+
+#define S_OFFLOAD_DISABLE 14
+#define V_OFFLOAD_DISABLE(x) ((x) << S_OFFLOAD_DISABLE)
+#define F_OFFLOAD_DISABLE V_OFFLOAD_DISABLE(1U)
+
+#define A_TP_OUT_CONFIG 0x304
+
+#define S_TP_OUT_CSPI_CPL 2
+#define V_TP_OUT_CSPI_CPL(x) ((x) << S_TP_OUT_CSPI_CPL)
+#define F_TP_OUT_CSPI_CPL V_TP_OUT_CSPI_CPL(1U)
+
+#define S_TP_OUT_ESPI_ETHERNET 6
+#define V_TP_OUT_ESPI_ETHERNET(x) ((x) << S_TP_OUT_ESPI_ETHERNET)
+#define F_TP_OUT_ESPI_ETHERNET V_TP_OUT_ESPI_ETHERNET(1U)
+
+#define S_TP_OUT_ESPI_GENERATE_IP_CSUM 10
+#define V_TP_OUT_ESPI_GENERATE_IP_CSUM(x) ((x) << S_TP_OUT_ESPI_GENERATE_IP_CSUM)
+#define F_TP_OUT_ESPI_GENERATE_IP_CSUM V_TP_OUT_ESPI_GENERATE_IP_CSUM(1U)
+
+#define S_TP_OUT_ESPI_GENERATE_TCP_CSUM 11
+#define V_TP_OUT_ESPI_GENERATE_TCP_CSUM(x) ((x) << S_TP_OUT_ESPI_GENERATE_TCP_CSUM)
+#define F_TP_OUT_ESPI_GENERATE_TCP_CSUM V_TP_OUT_ESPI_GENERATE_TCP_CSUM(1U)
+
+#define A_TP_GLOBAL_CONFIG 0x308
+
+#define S_IP_TTL 0
+#define M_IP_TTL 0xff
+#define V_IP_TTL(x) ((x) << S_IP_TTL)
+
+#define S_TCP_CSUM 11
+#define V_TCP_CSUM(x) ((x) << S_TCP_CSUM)
+#define F_TCP_CSUM V_TCP_CSUM(1U)
+
+#define S_UDP_CSUM 12
+#define V_UDP_CSUM(x) ((x) << S_UDP_CSUM)
+#define F_UDP_CSUM V_UDP_CSUM(1U)
+
+#define S_IP_CSUM 13
+#define V_IP_CSUM(x) ((x) << S_IP_CSUM)
+#define F_IP_CSUM V_IP_CSUM(1U)
+
+#define S_PATH_MTU 15
+#define V_PATH_MTU(x) ((x) << S_PATH_MTU)
+#define F_PATH_MTU V_PATH_MTU(1U)
+
+#define S_5TUPLE_LOOKUP 17
+#define V_5TUPLE_LOOKUP(x) ((x) << S_5TUPLE_LOOKUP)
+
+#define S_SYN_COOKIE_PARAMETER 26
+#define V_SYN_COOKIE_PARAMETER(x) ((x) << S_SYN_COOKIE_PARAMETER)
+
+#define A_TP_PC_CONFIG 0x348
+#define S_DIS_TX_FILL_WIN_PUSH 12
+#define V_DIS_TX_FILL_WIN_PUSH(x) ((x) << S_DIS_TX_FILL_WIN_PUSH)
+#define F_DIS_TX_FILL_WIN_PUSH V_DIS_TX_FILL_WIN_PUSH(1U)
+
+#define S_TP_PC_REV 30
+#define M_TP_PC_REV 0x3
+#define G_TP_PC_REV(x) (((x) >> S_TP_PC_REV) & M_TP_PC_REV)
+#define A_TP_RESET 0x44c
+#define S_TP_RESET 0
+#define V_TP_RESET(x) ((x) << S_TP_RESET)
+#define F_TP_RESET V_TP_RESET(1U)
+
+#define A_TP_INT_ENABLE 0x470
+#define A_TP_INT_CAUSE 0x474
+#define A_TP_TX_DROP_CONFIG 0x4b8
+
+#define S_ENABLE_TX_DROP 31
+#define V_ENABLE_TX_DROP(x) ((x) << S_ENABLE_TX_DROP)
+#define F_ENABLE_TX_DROP V_ENABLE_TX_DROP(1U)
+
+#define S_ENABLE_TX_ERROR 30
+#define V_ENABLE_TX_ERROR(x) ((x) << S_ENABLE_TX_ERROR)
+#define F_ENABLE_TX_ERROR V_ENABLE_TX_ERROR(1U)
+
+#define S_DROP_TICKS_CNT 4
+#define V_DROP_TICKS_CNT(x) ((x) << S_DROP_TICKS_CNT)
+
+#define S_NUM_PKTS_DROPPED 0
+#define V_NUM_PKTS_DROPPED(x) ((x) << S_NUM_PKTS_DROPPED)
+
+/* CSPI registers */
+
+#define S_DIP4ERR 0
+#define V_DIP4ERR(x) ((x) << S_DIP4ERR)
+#define F_DIP4ERR V_DIP4ERR(1U)
+
+#define S_RXDROP 1
+#define V_RXDROP(x) ((x) << S_RXDROP)
+#define F_RXDROP V_RXDROP(1U)
+
+#define S_TXDROP 2
+#define V_TXDROP(x) ((x) << S_TXDROP)
+#define F_TXDROP V_TXDROP(1U)
+
+#define S_RXOVERFLOW 3
+#define V_RXOVERFLOW(x) ((x) << S_RXOVERFLOW)
+#define F_RXOVERFLOW V_RXOVERFLOW(1U)
+
+#define S_RAMPARITYERR 4
+#define V_RAMPARITYERR(x) ((x) << S_RAMPARITYERR)
+#define F_RAMPARITYERR V_RAMPARITYERR(1U)
+
+/* ESPI registers */
+
+#define A_ESPI_SCH_TOKEN0 0x880
+#define A_ESPI_SCH_TOKEN1 0x884
+#define A_ESPI_SCH_TOKEN2 0x888
+#define A_ESPI_SCH_TOKEN3 0x88c
+#define A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK 0x890
+#define A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK 0x894
+#define A_ESPI_CALENDAR_LENGTH 0x898
+#define A_PORT_CONFIG 0x89c
+
+#define S_RX_NPORTS 0
+#define V_RX_NPORTS(x) ((x) << S_RX_NPORTS)
+
+#define S_TX_NPORTS 8
+#define V_TX_NPORTS(x) ((x) << S_TX_NPORTS)
+
+#define A_ESPI_FIFO_STATUS_ENABLE 0x8a0
+
+#define S_RXSTATUSENABLE 0
+#define V_RXSTATUSENABLE(x) ((x) << S_RXSTATUSENABLE)
+#define F_RXSTATUSENABLE V_RXSTATUSENABLE(1U)
+
+#define S_INTEL1010MODE 4
+#define V_INTEL1010MODE(x) ((x) << S_INTEL1010MODE)
+#define F_INTEL1010MODE V_INTEL1010MODE(1U)
+
+#define A_ESPI_MAXBURST1_MAXBURST2 0x8a8
+#define A_ESPI_TRAIN 0x8ac
+#define A_ESPI_INTR_STATUS 0x8c8
+
+#define S_DIP2PARITYERR 5
+#define V_DIP2PARITYERR(x) ((x) << S_DIP2PARITYERR)
+#define F_DIP2PARITYERR V_DIP2PARITYERR(1U)
+
+#define A_ESPI_INTR_ENABLE 0x8cc
+#define A_RX_DROP_THRESHOLD 0x8d0
+#define A_ESPI_RX_RESET 0x8ec
+#define A_ESPI_MISC_CONTROL 0x8f0
+
+#define S_OUT_OF_SYNC_COUNT 0
+#define V_OUT_OF_SYNC_COUNT(x) ((x) << S_OUT_OF_SYNC_COUNT)
+
+#define S_DIP2_PARITY_ERR_THRES 5
+#define V_DIP2_PARITY_ERR_THRES(x) ((x) << S_DIP2_PARITY_ERR_THRES)
+
+#define S_DIP4_THRES 9
+#define V_DIP4_THRES(x) ((x) << S_DIP4_THRES)
+
+#define S_MONITORED_PORT_NUM 25
+#define V_MONITORED_PORT_NUM(x) ((x) << S_MONITORED_PORT_NUM)
+
+#define S_MONITORED_DIRECTION 27
+#define V_MONITORED_DIRECTION(x) ((x) << S_MONITORED_DIRECTION)
+#define F_MONITORED_DIRECTION V_MONITORED_DIRECTION(1U)
+
+#define S_MONITORED_INTERFACE 28
+#define V_MONITORED_INTERFACE(x) ((x) << S_MONITORED_INTERFACE)
+#define F_MONITORED_INTERFACE V_MONITORED_INTERFACE(1U)
+
+#define A_ESPI_DIP2_ERR_COUNT 0x8f4
+#define A_ESPI_CMD_ADDR 0x8f8
+
+#define S_WRITE_DATA 0
+#define V_WRITE_DATA(x) ((x) << S_WRITE_DATA)
+
+#define S_REGISTER_OFFSET 8
+#define V_REGISTER_OFFSET(x) ((x) << S_REGISTER_OFFSET)
+
+#define S_CHANNEL_ADDR 12
+#define V_CHANNEL_ADDR(x) ((x) << S_CHANNEL_ADDR)
+
+#define S_MODULE_ADDR 16
+#define V_MODULE_ADDR(x) ((x) << S_MODULE_ADDR)
+
+#define S_BUNDLE_ADDR 20
+#define V_BUNDLE_ADDR(x) ((x) << S_BUNDLE_ADDR)
+
+#define S_SPI4_COMMAND 24
+#define V_SPI4_COMMAND(x) ((x) << S_SPI4_COMMAND)
+
+#define A_ESPI_GOSTAT 0x8fc
+#define S_ESPI_CMD_BUSY 8
+#define V_ESPI_CMD_BUSY(x) ((x) << S_ESPI_CMD_BUSY)
+#define F_ESPI_CMD_BUSY V_ESPI_CMD_BUSY(1U)
+
+/* PL registers */
+
+#define A_PL_ENABLE 0xa00
+
+#define S_PL_INTR_SGE_ERR 0
+#define V_PL_INTR_SGE_ERR(x) ((x) << S_PL_INTR_SGE_ERR)
+#define F_PL_INTR_SGE_ERR V_PL_INTR_SGE_ERR(1U)
+
+#define S_PL_INTR_SGE_DATA 1
+#define V_PL_INTR_SGE_DATA(x) ((x) << S_PL_INTR_SGE_DATA)
+#define F_PL_INTR_SGE_DATA V_PL_INTR_SGE_DATA(1U)
+
+#define S_PL_INTR_TP 6
+#define V_PL_INTR_TP(x) ((x) << S_PL_INTR_TP)
+#define F_PL_INTR_TP V_PL_INTR_TP(1U)
+
+#define S_PL_INTR_ESPI 8
+#define V_PL_INTR_ESPI(x) ((x) << S_PL_INTR_ESPI)
+#define F_PL_INTR_ESPI V_PL_INTR_ESPI(1U)
+
+#define S_PL_INTR_PCIX 10
+#define V_PL_INTR_PCIX(x) ((x) << S_PL_INTR_PCIX)
+#define F_PL_INTR_PCIX V_PL_INTR_PCIX(1U)
+
+#define S_PL_INTR_EXT 11
+#define V_PL_INTR_EXT(x) ((x) << S_PL_INTR_EXT)
+#define F_PL_INTR_EXT V_PL_INTR_EXT(1U)
+
+#define A_PL_CAUSE 0xa04
+
+/* MC5 registers */
+
+#define A_MC5_CONFIG 0xc04
+
+#define S_TCAM_RESET 1
+#define V_TCAM_RESET(x) ((x) << S_TCAM_RESET)
+#define F_TCAM_RESET V_TCAM_RESET(1U)
+
+#define S_M_BUS_ENABLE 5
+#define V_M_BUS_ENABLE(x) ((x) << S_M_BUS_ENABLE)
+#define F_M_BUS_ENABLE V_M_BUS_ENABLE(1U)
+
+/* PCICFG registers */
+
+#define A_PCICFG_PM_CSR 0x44
+#define A_PCICFG_VPD_ADDR 0x4a
+
+#define S_VPD_OP_FLAG 15
+#define V_VPD_OP_FLAG(x) ((x) << S_VPD_OP_FLAG)
+#define F_VPD_OP_FLAG V_VPD_OP_FLAG(1U)
+
+#define A_PCICFG_VPD_DATA 0x4c
+
+#define A_PCICFG_INTR_ENABLE 0xf4
+#define A_PCICFG_INTR_CAUSE 0xf8
+
+#define A_PCICFG_MODE 0xfc
+
+#define S_PCI_MODE_64BIT 0
+#define V_PCI_MODE_64BIT(x) ((x) << S_PCI_MODE_64BIT)
+#define F_PCI_MODE_64BIT V_PCI_MODE_64BIT(1U)
+
+#define S_PCI_MODE_PCIX 5
+#define V_PCI_MODE_PCIX(x) ((x) << S_PCI_MODE_PCIX)
+#define F_PCI_MODE_PCIX V_PCI_MODE_PCIX(1U)
+
+#define S_PCI_MODE_CLK 6
+#define M_PCI_MODE_CLK 0x3
+#define G_PCI_MODE_CLK(x) (((x) >> S_PCI_MODE_CLK) & M_PCI_MODE_CLK)
+
+#endif /* _CXGB_REGS_H_ */
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
new file mode 100644
index 00000000000..53b41d99b00
--- /dev/null
+++ b/drivers/net/chelsio/sge.c
@@ -0,0 +1,1684 @@
+/*****************************************************************************
+ * *
+ * File: sge.c *
+ * $Revision: 1.26 $ *
+ * $Date: 2005/06/21 18:29:48 $ *
+ * Description: *
+ * DMA engine. *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#include "common.h"
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/ip.h>
+#include <linux/in.h>
+#include <linux/if_arp.h>
+
+#include "cpl5_cmd.h"
+#include "sge.h"
+#include "regs.h"
+#include "espi.h"
+
+
+#ifdef NETIF_F_TSO
+#include <linux/tcp.h>
+#endif
+
+#define SGE_CMDQ_N 2
+#define SGE_FREELQ_N 2
+#define SGE_CMDQ0_E_N 1024
+#define SGE_CMDQ1_E_N 128
+#define SGE_FREEL_SIZE 4096
+#define SGE_JUMBO_FREEL_SIZE 512
+#define SGE_FREEL_REFILL_THRESH 16
+#define SGE_RESPQ_E_N 1024
+#define SGE_INTRTIMER_NRES 1000
+#define SGE_RX_COPY_THRES 256
+#define SGE_RX_SM_BUF_SIZE 1536
+
+# define SGE_RX_DROP_THRES 2
+
+#define SGE_RESPQ_REPLENISH_THRES (SGE_RESPQ_E_N / 4)
+
+/*
+ * Period of the TX buffer reclaim timer. This timer does not need to run
+ * frequently as TX buffers are usually reclaimed by new TX packets.
+ */
+#define TX_RECLAIM_PERIOD (HZ / 4)
+
+#ifndef NET_IP_ALIGN
+# define NET_IP_ALIGN 2
+#endif
+
+#define M_CMD_LEN 0x7fffffff
+#define V_CMD_LEN(v) (v)
+#define G_CMD_LEN(v) ((v) & M_CMD_LEN)
+#define V_CMD_GEN1(v) ((v) << 31)
+#define V_CMD_GEN2(v) (v)
+#define F_CMD_DATAVALID (1 << 1)
+#define F_CMD_SOP (1 << 2)
+#define V_CMD_EOP(v) ((v) << 3)
+
+/*
+ * Command queue, receive buffer list, and response queue descriptors.
+ */
+#if defined(__BIG_ENDIAN_BITFIELD)
+struct cmdQ_e {
+ u32 addr_lo;
+ u32 len_gen;
+ u32 flags;
+ u32 addr_hi;
+};
+
+struct freelQ_e {
+ u32 addr_lo;
+ u32 len_gen;
+ u32 gen2;
+ u32 addr_hi;
+};
+
+struct respQ_e {
+ u32 Qsleeping : 4;
+ u32 Cmdq1CreditReturn : 5;
+ u32 Cmdq1DmaComplete : 5;
+ u32 Cmdq0CreditReturn : 5;
+ u32 Cmdq0DmaComplete : 5;
+ u32 FreelistQid : 2;
+ u32 CreditValid : 1;
+ u32 DataValid : 1;
+ u32 Offload : 1;
+ u32 Eop : 1;
+ u32 Sop : 1;
+ u32 GenerationBit : 1;
+ u32 BufferLength;
+};
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+struct cmdQ_e {
+ u32 len_gen;
+ u32 addr_lo;
+ u32 addr_hi;
+ u32 flags;
+};
+
+struct freelQ_e {
+ u32 len_gen;
+ u32 addr_lo;
+ u32 addr_hi;
+ u32 gen2;
+};
+
+struct respQ_e {
+ u32 BufferLength;
+ u32 GenerationBit : 1;
+ u32 Sop : 1;
+ u32 Eop : 1;
+ u32 Offload : 1;
+ u32 DataValid : 1;
+ u32 CreditValid : 1;
+ u32 FreelistQid : 2;
+ u32 Cmdq0DmaComplete : 5;
+ u32 Cmdq0CreditReturn : 5;
+ u32 Cmdq1DmaComplete : 5;
+ u32 Cmdq1CreditReturn : 5;
+ u32 Qsleeping : 4;
+} ;
+#endif
+
+/*
+ * SW Context Command and Freelist Queue Descriptors
+ */
+struct cmdQ_ce {
+ struct sk_buff *skb;
+ DECLARE_PCI_UNMAP_ADDR(dma_addr);
+ DECLARE_PCI_UNMAP_LEN(dma_len);
+};
+
+struct freelQ_ce {
+ struct sk_buff *skb;
+ DECLARE_PCI_UNMAP_ADDR(dma_addr);
+ DECLARE_PCI_UNMAP_LEN(dma_len);
+};
+
+/*
+ * SW command, freelist and response rings
+ */
+struct cmdQ {
+ unsigned long status; /* HW DMA fetch status */
+ unsigned int in_use; /* # of in-use command descriptors */
+ unsigned int size; /* # of descriptors */
+ unsigned int processed; /* total # of descs HW has processed */
+ unsigned int cleaned; /* total # of descs SW has reclaimed */
+ unsigned int stop_thres; /* SW TX queue suspend threshold */
+ u16 pidx; /* producer index (SW) */
+ u16 cidx; /* consumer index (HW) */
+ u8 genbit; /* current generation (=valid) bit */
+ u8 sop; /* is next entry start of packet? */
+ struct cmdQ_e *entries; /* HW command descriptor Q */
+ struct cmdQ_ce *centries; /* SW command context descriptor Q */
+ spinlock_t lock; /* Lock to protect cmdQ enqueuing */
+ dma_addr_t dma_addr; /* DMA addr HW command descriptor Q */
+};
+
+struct freelQ {
+ unsigned int credits; /* # of available RX buffers */
+ unsigned int size; /* free list capacity */
+ u16 pidx; /* producer index (SW) */
+ u16 cidx; /* consumer index (HW) */
+ u16 rx_buffer_size; /* Buffer size on this free list */
+ u16 dma_offset; /* DMA offset to align IP headers */
+ u16 recycleq_idx; /* skb recycle q to use */
+ u8 genbit; /* current generation (=valid) bit */
+ struct freelQ_e *entries; /* HW freelist descriptor Q */
+ struct freelQ_ce *centries; /* SW freelist context descriptor Q */
+ dma_addr_t dma_addr; /* DMA addr HW freelist descriptor Q */
+};
+
+struct respQ {
+ unsigned int credits; /* credits to be returned to SGE */
+ unsigned int size; /* # of response Q descriptors */
+ u16 cidx; /* consumer index (SW) */
+ u8 genbit; /* current generation(=valid) bit */
+ struct respQ_e *entries; /* HW response descriptor Q */
+ dma_addr_t dma_addr; /* DMA addr HW response descriptor Q */
+};
+
+/* Bit flags for cmdQ.status */
+enum {
+ CMDQ_STAT_RUNNING = 1, /* fetch engine is running */
+ CMDQ_STAT_LAST_PKT_DB = 2 /* last packet rung the doorbell */
+};
+
+/*
+ * Main SGE data structure
+ *
+ * Interrupts are handled by a single CPU and it is likely that on a MP system
+ * the application is migrated to another CPU. In that scenario, we try to
+ * seperate the RX(in irq context) and TX state in order to decrease memory
+ * contention.
+ */
+struct sge {
+ struct adapter *adapter; /* adapter backpointer */
+ struct net_device *netdev; /* netdevice backpointer */
+ struct freelQ freelQ[SGE_FREELQ_N]; /* buffer free lists */
+ struct respQ respQ; /* response Q */
+ unsigned long stopped_tx_queues; /* bitmap of suspended Tx queues */
+ unsigned int rx_pkt_pad; /* RX padding for L2 packets */
+ unsigned int jumbo_fl; /* jumbo freelist Q index */
+ unsigned int intrtimer_nres; /* no-resource interrupt timer */
+ unsigned int fixed_intrtimer;/* non-adaptive interrupt timer */
+ struct timer_list tx_reclaim_timer; /* reclaims TX buffers */
+ struct timer_list espibug_timer;
+ unsigned int espibug_timeout;
+ struct sk_buff *espibug_skb;
+ u32 sge_control; /* shadow value of sge control reg */
+ struct sge_intr_counts stats;
+ struct sge_port_stats port_stats[MAX_NPORTS];
+ struct cmdQ cmdQ[SGE_CMDQ_N] ____cacheline_aligned_in_smp;
+};
+
+/*
+ * PIO to indicate that memory mapped Q contains valid descriptor(s).
+ */
+static inline void doorbell_pio(struct adapter *adapter, u32 val)
+{
+ wmb();
+ writel(val, adapter->regs + A_SG_DOORBELL);
+}
+
+/*
+ * Frees all RX buffers on the freelist Q. The caller must make sure that
+ * the SGE is turned off before calling this function.
+ */
+static void free_freelQ_buffers(struct pci_dev *pdev, struct freelQ *q)
+{
+ unsigned int cidx = q->cidx;
+
+ while (q->credits--) {
+ struct freelQ_ce *ce = &q->centries[cidx];
+
+ pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr),
+ pci_unmap_len(ce, dma_len),
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(ce->skb);
+ ce->skb = NULL;
+ if (++cidx == q->size)
+ cidx = 0;
+ }
+}
+
+/*
+ * Free RX free list and response queue resources.
+ */
+static void free_rx_resources(struct sge *sge)
+{
+ struct pci_dev *pdev = sge->adapter->pdev;
+ unsigned int size, i;
+
+ if (sge->respQ.entries) {
+ size = sizeof(struct respQ_e) * sge->respQ.size;
+ pci_free_consistent(pdev, size, sge->respQ.entries,
+ sge->respQ.dma_addr);
+ }
+
+ for (i = 0; i < SGE_FREELQ_N; i++) {
+ struct freelQ *q = &sge->freelQ[i];
+
+ if (q->centries) {
+ free_freelQ_buffers(pdev, q);
+ kfree(q->centries);
+ }
+ if (q->entries) {
+ size = sizeof(struct freelQ_e) * q->size;
+ pci_free_consistent(pdev, size, q->entries,
+ q->dma_addr);
+ }
+ }
+}
+
+/*
+ * Allocates basic RX resources, consisting of memory mapped freelist Qs and a
+ * response queue.
+ */
+static int alloc_rx_resources(struct sge *sge, struct sge_params *p)
+{
+ struct pci_dev *pdev = sge->adapter->pdev;
+ unsigned int size, i;
+
+ for (i = 0; i < SGE_FREELQ_N; i++) {
+ struct freelQ *q = &sge->freelQ[i];
+
+ q->genbit = 1;
+ q->size = p->freelQ_size[i];
+ q->dma_offset = sge->rx_pkt_pad ? 0 : NET_IP_ALIGN;
+ size = sizeof(struct freelQ_e) * q->size;
+ q->entries = (struct freelQ_e *)
+ pci_alloc_consistent(pdev, size, &q->dma_addr);
+ if (!q->entries)
+ goto err_no_mem;
+ memset(q->entries, 0, size);
+ size = sizeof(struct freelQ_ce) * q->size;
+ q->centries = kmalloc(size, GFP_KERNEL);
+ if (!q->centries)
+ goto err_no_mem;
+ memset(q->centries, 0, size);
+ }
+
+ /*
+ * Calculate the buffer sizes for the two free lists. FL0 accommodates
+ * regular sized Ethernet frames, FL1 is sized not to exceed 16K,
+ * including all the sk_buff overhead.
+ *
+ * Note: For T2 FL0 and FL1 are reversed.
+ */
+ sge->freelQ[!sge->jumbo_fl].rx_buffer_size = SGE_RX_SM_BUF_SIZE +
+ sizeof(struct cpl_rx_data) +
+ sge->freelQ[!sge->jumbo_fl].dma_offset;
+ sge->freelQ[sge->jumbo_fl].rx_buffer_size = (16 * 1024) -
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+ /*
+ * Setup which skb recycle Q should be used when recycling buffers from
+ * each free list.
+ */
+ sge->freelQ[!sge->jumbo_fl].recycleq_idx = 0;
+ sge->freelQ[sge->jumbo_fl].recycleq_idx = 1;
+
+ sge->respQ.genbit = 1;
+ sge->respQ.size = SGE_RESPQ_E_N;
+ sge->respQ.credits = 0;
+ size = sizeof(struct respQ_e) * sge->respQ.size;
+ sge->respQ.entries = (struct respQ_e *)
+ pci_alloc_consistent(pdev, size, &sge->respQ.dma_addr);
+ if (!sge->respQ.entries)
+ goto err_no_mem;
+ memset(sge->respQ.entries, 0, size);
+ return 0;
+
+err_no_mem:
+ free_rx_resources(sge);
+ return -ENOMEM;
+}
+
+/*
+ * Reclaims n TX descriptors and frees the buffers associated with them.
+ */
+static void free_cmdQ_buffers(struct sge *sge, struct cmdQ *q, unsigned int n)
+{
+ struct cmdQ_ce *ce;
+ struct pci_dev *pdev = sge->adapter->pdev;
+ unsigned int cidx = q->cidx;
+
+ q->in_use -= n;
+ ce = &q->centries[cidx];
+ while (n--) {
+ if (q->sop)
+ pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr),
+ pci_unmap_len(ce, dma_len),
+ PCI_DMA_TODEVICE);
+ else
+ pci_unmap_page(pdev, pci_unmap_addr(ce, dma_addr),
+ pci_unmap_len(ce, dma_len),
+ PCI_DMA_TODEVICE);
+ q->sop = 0;
+ if (ce->skb) {
+ dev_kfree_skb(ce->skb);
+ q->sop = 1;
+ }
+ ce++;
+ if (++cidx == q->size) {
+ cidx = 0;
+ ce = q->centries;
+ }
+ }
+ q->cidx = cidx;
+}
+
+/*
+ * Free TX resources.
+ *
+ * Assumes that SGE is stopped and all interrupts are disabled.
+ */
+static void free_tx_resources(struct sge *sge)
+{
+ struct pci_dev *pdev = sge->adapter->pdev;
+ unsigned int size, i;
+
+ for (i = 0; i < SGE_CMDQ_N; i++) {
+ struct cmdQ *q = &sge->cmdQ[i];
+
+ if (q->centries) {
+ if (q->in_use)
+ free_cmdQ_buffers(sge, q, q->in_use);
+ kfree(q->centries);
+ }
+ if (q->entries) {
+ size = sizeof(struct cmdQ_e) * q->size;
+ pci_free_consistent(pdev, size, q->entries,
+ q->dma_addr);
+ }
+ }
+}
+
+/*
+ * Allocates basic TX resources, consisting of memory mapped command Qs.
+ */
+static int alloc_tx_resources(struct sge *sge, struct sge_params *p)
+{
+ struct pci_dev *pdev = sge->adapter->pdev;
+ unsigned int size, i;
+
+ for (i = 0; i < SGE_CMDQ_N; i++) {
+ struct cmdQ *q = &sge->cmdQ[i];
+
+ q->genbit = 1;
+ q->sop = 1;
+ q->size = p->cmdQ_size[i];
+ q->in_use = 0;
+ q->status = 0;
+ q->processed = q->cleaned = 0;
+ q->stop_thres = 0;
+ spin_lock_init(&q->lock);
+ size = sizeof(struct cmdQ_e) * q->size;
+ q->entries = (struct cmdQ_e *)
+ pci_alloc_consistent(pdev, size, &q->dma_addr);
+ if (!q->entries)
+ goto err_no_mem;
+ memset(q->entries, 0, size);
+ size = sizeof(struct cmdQ_ce) * q->size;
+ q->centries = kmalloc(size, GFP_KERNEL);
+ if (!q->centries)
+ goto err_no_mem;
+ memset(q->centries, 0, size);
+ }
+
+ /*
+ * CommandQ 0 handles Ethernet and TOE packets, while queue 1 is TOE
+ * only. For queue 0 set the stop threshold so we can handle one more
+ * packet from each port, plus reserve an additional 24 entries for
+ * Ethernet packets only. Queue 1 never suspends nor do we reserve
+ * space for Ethernet packets.
+ */
+ sge->cmdQ[0].stop_thres = sge->adapter->params.nports *
+ (MAX_SKB_FRAGS + 1);
+ return 0;
+
+err_no_mem:
+ free_tx_resources(sge);
+ return -ENOMEM;
+}
+
+static inline void setup_ring_params(struct adapter *adapter, u64 addr,
+ u32 size, int base_reg_lo,
+ int base_reg_hi, int size_reg)
+{
+ writel((u32)addr, adapter->regs + base_reg_lo);
+ writel(addr >> 32, adapter->regs + base_reg_hi);
+ writel(size, adapter->regs + size_reg);
+}
+
+/*
+ * Enable/disable VLAN acceleration.
+ */
+void t1_set_vlan_accel(struct adapter *adapter, int on_off)
+{
+ struct sge *sge = adapter->sge;
+
+ sge->sge_control &= ~F_VLAN_XTRACT;
+ if (on_off)
+ sge->sge_control |= F_VLAN_XTRACT;
+ if (adapter->open_device_map) {
+ writel(sge->sge_control, adapter->regs + A_SG_CONTROL);
+ readl(adapter->regs + A_SG_CONTROL); /* flush */
+ }
+}
+
+/*
+ * Programs the various SGE registers. However, the engine is not yet enabled,
+ * but sge->sge_control is setup and ready to go.
+ */
+static void configure_sge(struct sge *sge, struct sge_params *p)
+{
+ struct adapter *ap = sge->adapter;
+
+ writel(0, ap->regs + A_SG_CONTROL);
+ setup_ring_params(ap, sge->cmdQ[0].dma_addr, sge->cmdQ[0].size,
+ A_SG_CMD0BASELWR, A_SG_CMD0BASEUPR, A_SG_CMD0SIZE);
+ setup_ring_params(ap, sge->cmdQ[1].dma_addr, sge->cmdQ[1].size,
+ A_SG_CMD1BASELWR, A_SG_CMD1BASEUPR, A_SG_CMD1SIZE);
+ setup_ring_params(ap, sge->freelQ[0].dma_addr,
+ sge->freelQ[0].size, A_SG_FL0BASELWR,
+ A_SG_FL0BASEUPR, A_SG_FL0SIZE);
+ setup_ring_params(ap, sge->freelQ[1].dma_addr,
+ sge->freelQ[1].size, A_SG_FL1BASELWR,
+ A_SG_FL1BASEUPR, A_SG_FL1SIZE);
+
+ /* The threshold comparison uses <. */
+ writel(SGE_RX_SM_BUF_SIZE + 1, ap->regs + A_SG_FLTHRESHOLD);
+
+ setup_ring_params(ap, sge->respQ.dma_addr, sge->respQ.size,
+ A_SG_RSPBASELWR, A_SG_RSPBASEUPR, A_SG_RSPSIZE);
+ writel((u32)sge->respQ.size - 1, ap->regs + A_SG_RSPQUEUECREDIT);
+
+ sge->sge_control = F_CMDQ0_ENABLE | F_CMDQ1_ENABLE | F_FL0_ENABLE |
+ F_FL1_ENABLE | F_CPL_ENABLE | F_RESPONSE_QUEUE_ENABLE |
+ V_CMDQ_PRIORITY(2) | F_DISABLE_CMDQ1_GTS | F_ISCSI_COALESCE |
+ F_DISABLE_FL0_GTS | F_DISABLE_FL1_GTS |
+ V_RX_PKT_OFFSET(sge->rx_pkt_pad);
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ sge->sge_control |= F_ENABLE_BIG_ENDIAN;
+#endif
+
+ /* Initialize no-resource timer */
+ sge->intrtimer_nres = SGE_INTRTIMER_NRES * core_ticks_per_usec(ap);
+
+ t1_sge_set_coalesce_params(sge, p);
+}
+
+/*
+ * Return the payload capacity of the jumbo free-list buffers.
+ */
+static inline unsigned int jumbo_payload_capacity(const struct sge *sge)
+{
+ return sge->freelQ[sge->jumbo_fl].rx_buffer_size -
+ sge->freelQ[sge->jumbo_fl].dma_offset -
+ sizeof(struct cpl_rx_data);
+}
+
+/*
+ * Frees all SGE related resources and the sge structure itself
+ */
+void t1_sge_destroy(struct sge *sge)
+{
+ if (sge->espibug_skb)
+ kfree_skb(sge->espibug_skb);
+
+ free_tx_resources(sge);
+ free_rx_resources(sge);
+ kfree(sge);
+}
+
+/*
+ * Allocates new RX buffers on the freelist Q (and tracks them on the freelist
+ * context Q) until the Q is full or alloc_skb fails.
+ *
+ * It is possible that the generation bits already match, indicating that the
+ * buffer is already valid and nothing needs to be done. This happens when we
+ * copied a received buffer into a new sk_buff during the interrupt processing.
+ *
+ * If the SGE doesn't automatically align packets properly (!sge->rx_pkt_pad),
+ * we specify a RX_OFFSET in order to make sure that the IP header is 4B
+ * aligned.
+ */
+static void refill_free_list(struct sge *sge, struct freelQ *q)
+{
+ struct pci_dev *pdev = sge->adapter->pdev;
+ struct freelQ_ce *ce = &q->centries[q->pidx];
+ struct freelQ_e *e = &q->entries[q->pidx];
+ unsigned int dma_len = q->rx_buffer_size - q->dma_offset;
+
+
+ while (q->credits < q->size) {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+
+ skb = alloc_skb(q->rx_buffer_size, GFP_ATOMIC);
+ if (!skb)
+ break;
+
+ skb_reserve(skb, q->dma_offset);
+ mapping = pci_map_single(pdev, skb->data, dma_len,
+ PCI_DMA_FROMDEVICE);
+ ce->skb = skb;
+ pci_unmap_addr_set(ce, dma_addr, mapping);
+ pci_unmap_len_set(ce, dma_len, dma_len);
+ e->addr_lo = (u32)mapping;
+ e->addr_hi = (u64)mapping >> 32;
+ e->len_gen = V_CMD_LEN(dma_len) | V_CMD_GEN1(q->genbit);
+ wmb();
+ e->gen2 = V_CMD_GEN2(q->genbit);
+
+ e++;
+ ce++;
+ if (++q->pidx == q->size) {
+ q->pidx = 0;
+ q->genbit ^= 1;
+ ce = q->centries;
+ e = q->entries;
+ }
+ q->credits++;
+ }
+
+}
+
+/*
+ * Calls refill_free_list for both free lists. If we cannot fill at least 1/4
+ * of both rings, we go into 'few interrupt mode' in order to give the system
+ * time to free up resources.
+ */
+static void freelQs_empty(struct sge *sge)
+{
+ struct adapter *adapter = sge->adapter;
+ u32 irq_reg = readl(adapter->regs + A_SG_INT_ENABLE);
+ u32 irqholdoff_reg;
+
+ refill_free_list(sge, &sge->freelQ[0]);
+ refill_free_list(sge, &sge->freelQ[1]);
+
+ if (sge->freelQ[0].credits > (sge->freelQ[0].size >> 2) &&
+ sge->freelQ[1].credits > (sge->freelQ[1].size >> 2)) {
+ irq_reg |= F_FL_EXHAUSTED;
+ irqholdoff_reg = sge->fixed_intrtimer;
+ } else {
+ /* Clear the F_FL_EXHAUSTED interrupts for now */
+ irq_reg &= ~F_FL_EXHAUSTED;
+ irqholdoff_reg = sge->intrtimer_nres;
+ }
+ writel(irqholdoff_reg, adapter->regs + A_SG_INTRTIMER);
+ writel(irq_reg, adapter->regs + A_SG_INT_ENABLE);
+
+ /* We reenable the Qs to force a freelist GTS interrupt later */
+ doorbell_pio(adapter, F_FL0_ENABLE | F_FL1_ENABLE);
+}
+
+#define SGE_PL_INTR_MASK (F_PL_INTR_SGE_ERR | F_PL_INTR_SGE_DATA)
+#define SGE_INT_FATAL (F_RESPQ_OVERFLOW | F_PACKET_TOO_BIG | F_PACKET_MISMATCH)
+#define SGE_INT_ENABLE (F_RESPQ_EXHAUSTED | F_RESPQ_OVERFLOW | \
+ F_FL_EXHAUSTED | F_PACKET_TOO_BIG | F_PACKET_MISMATCH)
+
+/*
+ * Disable SGE Interrupts
+ */
+void t1_sge_intr_disable(struct sge *sge)
+{
+ u32 val = readl(sge->adapter->regs + A_PL_ENABLE);
+
+ writel(val & ~SGE_PL_INTR_MASK, sge->adapter->regs + A_PL_ENABLE);
+ writel(0, sge->adapter->regs + A_SG_INT_ENABLE);
+}
+
+/*
+ * Enable SGE interrupts.
+ */
+void t1_sge_intr_enable(struct sge *sge)
+{
+ u32 en = SGE_INT_ENABLE;
+ u32 val = readl(sge->adapter->regs + A_PL_ENABLE);
+
+ if (sge->adapter->flags & TSO_CAPABLE)
+ en &= ~F_PACKET_TOO_BIG;
+ writel(en, sge->adapter->regs + A_SG_INT_ENABLE);
+ writel(val | SGE_PL_INTR_MASK, sge->adapter->regs + A_PL_ENABLE);
+}
+
+/*
+ * Clear SGE interrupts.
+ */
+void t1_sge_intr_clear(struct sge *sge)
+{
+ writel(SGE_PL_INTR_MASK, sge->adapter->regs + A_PL_CAUSE);
+ writel(0xffffffff, sge->adapter->regs + A_SG_INT_CAUSE);
+}
+
+/*
+ * SGE 'Error' interrupt handler
+ */
+int t1_sge_intr_error_handler(struct sge *sge)
+{
+ struct adapter *adapter = sge->adapter;
+ u32 cause = readl(adapter->regs + A_SG_INT_CAUSE);
+
+ if (adapter->flags & TSO_CAPABLE)
+ cause &= ~F_PACKET_TOO_BIG;
+ if (cause & F_RESPQ_EXHAUSTED)
+ sge->stats.respQ_empty++;
+ if (cause & F_RESPQ_OVERFLOW) {
+ sge->stats.respQ_overflow++;
+ CH_ALERT("%s: SGE response queue overflow\n",
+ adapter->name);
+ }
+ if (cause & F_FL_EXHAUSTED) {
+ sge->stats.freelistQ_empty++;
+ freelQs_empty(sge);
+ }
+ if (cause & F_PACKET_TOO_BIG) {
+ sge->stats.pkt_too_big++;
+ CH_ALERT("%s: SGE max packet size exceeded\n",
+ adapter->name);
+ }
+ if (cause & F_PACKET_MISMATCH) {
+ sge->stats.pkt_mismatch++;
+ CH_ALERT("%s: SGE packet mismatch\n", adapter->name);
+ }
+ if (cause & SGE_INT_FATAL)
+ t1_fatal_err(adapter);
+
+ writel(cause, adapter->regs + A_SG_INT_CAUSE);
+ return 0;
+}
+
+const struct sge_intr_counts *t1_sge_get_intr_counts(struct sge *sge)
+{
+ return &sge->stats;
+}
+
+const struct sge_port_stats *t1_sge_get_port_stats(struct sge *sge, int port)
+{
+ return &sge->port_stats[port];
+}
+
+/**
+ * recycle_fl_buf - recycle a free list buffer
+ * @fl: the free list
+ * @idx: index of buffer to recycle
+ *
+ * Recycles the specified buffer on the given free list by adding it at
+ * the next available slot on the list.
+ */
+static void recycle_fl_buf(struct freelQ *fl, int idx)
+{
+ struct freelQ_e *from = &fl->entries[idx];
+ struct freelQ_e *to = &fl->entries[fl->pidx];
+
+ fl->centries[fl->pidx] = fl->centries[idx];
+ to->addr_lo = from->addr_lo;
+ to->addr_hi = from->addr_hi;
+ to->len_gen = G_CMD_LEN(from->len_gen) | V_CMD_GEN1(fl->genbit);
+ wmb();
+ to->gen2 = V_CMD_GEN2(fl->genbit);
+ fl->credits++;
+
+ if (++fl->pidx == fl->size) {
+ fl->pidx = 0;
+ fl->genbit ^= 1;
+ }
+}
+
+/**
+ * get_packet - return the next ingress packet buffer
+ * @pdev: the PCI device that received the packet
+ * @fl: the SGE free list holding the packet
+ * @len: the actual packet length, excluding any SGE padding
+ * @dma_pad: padding at beginning of buffer left by SGE DMA
+ * @skb_pad: padding to be used if the packet is copied
+ * @copy_thres: length threshold under which a packet should be copied
+ * @drop_thres: # of remaining buffers before we start dropping packets
+ *
+ * Get the next packet from a free list and complete setup of the
+ * sk_buff. If the packet is small we make a copy and recycle the
+ * original buffer, otherwise we use the original buffer itself. If a
+ * positive drop threshold is supplied packets are dropped and their
+ * buffers recycled if (a) the number of remaining buffers is under the
+ * threshold and the packet is too big to copy, or (b) the packet should
+ * be copied but there is no memory for the copy.
+ */
+static inline struct sk_buff *get_packet(struct pci_dev *pdev,
+ struct freelQ *fl, unsigned int len,
+ int dma_pad, int skb_pad,
+ unsigned int copy_thres,
+ unsigned int drop_thres)
+{
+ struct sk_buff *skb;
+ struct freelQ_ce *ce = &fl->centries[fl->cidx];
+
+ if (len < copy_thres) {
+ skb = alloc_skb(len + skb_pad, GFP_ATOMIC);
+ if (likely(skb != NULL)) {
+ skb_reserve(skb, skb_pad);
+ skb_put(skb, len);
+ pci_dma_sync_single_for_cpu(pdev,
+ pci_unmap_addr(ce, dma_addr),
+ pci_unmap_len(ce, dma_len),
+ PCI_DMA_FROMDEVICE);
+ memcpy(skb->data, ce->skb->data + dma_pad, len);
+ pci_dma_sync_single_for_device(pdev,
+ pci_unmap_addr(ce, dma_addr),
+ pci_unmap_len(ce, dma_len),
+ PCI_DMA_FROMDEVICE);
+ } else if (!drop_thres)
+ goto use_orig_buf;
+
+ recycle_fl_buf(fl, fl->cidx);
+ return skb;
+ }
+
+ if (fl->credits < drop_thres) {
+ recycle_fl_buf(fl, fl->cidx);
+ return NULL;
+ }
+
+use_orig_buf:
+ pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr),
+ pci_unmap_len(ce, dma_len), PCI_DMA_FROMDEVICE);
+ skb = ce->skb;
+ skb_reserve(skb, dma_pad);
+ skb_put(skb, len);
+ return skb;
+}
+
+/**
+ * unexpected_offload - handle an unexpected offload packet
+ * @adapter: the adapter
+ * @fl: the free list that received the packet
+ *
+ * Called when we receive an unexpected offload packet (e.g., the TOE
+ * function is disabled or the card is a NIC). Prints a message and
+ * recycles the buffer.
+ */
+static void unexpected_offload(struct adapter *adapter, struct freelQ *fl)
+{
+ struct freelQ_ce *ce = &fl->centries[fl->cidx];
+ struct sk_buff *skb = ce->skb;
+
+ pci_dma_sync_single_for_cpu(adapter->pdev, pci_unmap_addr(ce, dma_addr),
+ pci_unmap_len(ce, dma_len), PCI_DMA_FROMDEVICE);
+ CH_ERR("%s: unexpected offload packet, cmd %u\n",
+ adapter->name, *skb->data);
+ recycle_fl_buf(fl, fl->cidx);
+}
+
+/*
+ * Write the command descriptors to transmit the given skb starting at
+ * descriptor pidx with the given generation.
+ */
+static inline void write_tx_descs(struct adapter *adapter, struct sk_buff *skb,
+ unsigned int pidx, unsigned int gen,
+ struct cmdQ *q)
+{
+ dma_addr_t mapping;
+ struct cmdQ_e *e, *e1;
+ struct cmdQ_ce *ce;
+ unsigned int i, flags, nfrags = skb_shinfo(skb)->nr_frags;
+
+ mapping = pci_map_single(adapter->pdev, skb->data,
+ skb->len - skb->data_len, PCI_DMA_TODEVICE);
+ ce = &q->centries[pidx];
+ ce->skb = NULL;
+ pci_unmap_addr_set(ce, dma_addr, mapping);
+ pci_unmap_len_set(ce, dma_len, skb->len - skb->data_len);
+
+ flags = F_CMD_DATAVALID | F_CMD_SOP | V_CMD_EOP(nfrags == 0) |
+ V_CMD_GEN2(gen);
+ e = &q->entries[pidx];
+ e->addr_lo = (u32)mapping;
+ e->addr_hi = (u64)mapping >> 32;
+ e->len_gen = V_CMD_LEN(skb->len - skb->data_len) | V_CMD_GEN1(gen);
+ for (e1 = e, i = 0; nfrags--; i++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ ce++;
+ e1++;
+ if (++pidx == q->size) {
+ pidx = 0;
+ gen ^= 1;
+ ce = q->centries;
+ e1 = q->entries;
+ }
+
+ mapping = pci_map_page(adapter->pdev, frag->page,
+ frag->page_offset, frag->size,
+ PCI_DMA_TODEVICE);
+ ce->skb = NULL;
+ pci_unmap_addr_set(ce, dma_addr, mapping);
+ pci_unmap_len_set(ce, dma_len, frag->size);
+
+ e1->addr_lo = (u32)mapping;
+ e1->addr_hi = (u64)mapping >> 32;
+ e1->len_gen = V_CMD_LEN(frag->size) | V_CMD_GEN1(gen);
+ e1->flags = F_CMD_DATAVALID | V_CMD_EOP(nfrags == 0) |
+ V_CMD_GEN2(gen);
+ }
+
+ ce->skb = skb;
+ wmb();
+ e->flags = flags;
+}
+
+/*
+ * Clean up completed Tx buffers.
+ */
+static inline void reclaim_completed_tx(struct sge *sge, struct cmdQ *q)
+{
+ unsigned int reclaim = q->processed - q->cleaned;
+
+ if (reclaim) {
+ free_cmdQ_buffers(sge, q, reclaim);
+ q->cleaned += reclaim;
+ }
+}
+
+#ifndef SET_ETHTOOL_OPS
+# define __netif_rx_complete(dev) netif_rx_complete(dev)
+#endif
+
+/*
+ * We cannot use the standard netif_rx_schedule_prep() because we have multiple
+ * ports plus the TOE all multiplexing onto a single response queue, therefore
+ * accepting new responses cannot depend on the state of any particular port.
+ * So define our own equivalent that omits the netif_running() test.
+ */
+static inline int napi_schedule_prep(struct net_device *dev)
+{
+ return !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+
+/**
+ * sge_rx - process an ingress ethernet packet
+ * @sge: the sge structure
+ * @fl: the free list that contains the packet buffer
+ * @len: the packet length
+ *
+ * Process an ingress ethernet pakcet and deliver it to the stack.
+ */
+static int sge_rx(struct sge *sge, struct freelQ *fl, unsigned int len)
+{
+ struct sk_buff *skb;
+ struct cpl_rx_pkt *p;
+ struct adapter *adapter = sge->adapter;
+
+ sge->stats.ethernet_pkts++;
+ skb = get_packet(adapter->pdev, fl, len - sge->rx_pkt_pad,
+ sge->rx_pkt_pad, 2, SGE_RX_COPY_THRES,
+ SGE_RX_DROP_THRES);
+ if (!skb) {
+ sge->port_stats[0].rx_drops++; /* charge only port 0 for now */
+ return 0;
+ }
+
+ p = (struct cpl_rx_pkt *)skb->data;
+ skb_pull(skb, sizeof(*p));
+ skb->dev = adapter->port[p->iff].dev;
+ skb->dev->last_rx = jiffies;
+ skb->protocol = eth_type_trans(skb, skb->dev);
+ if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0xffff &&
+ skb->protocol == htons(ETH_P_IP) &&
+ (skb->data[9] == IPPROTO_TCP || skb->data[9] == IPPROTO_UDP)) {
+ sge->port_stats[p->iff].rx_cso_good++;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ } else
+ skb->ip_summed = CHECKSUM_NONE;
+
+ if (unlikely(adapter->vlan_grp && p->vlan_valid)) {
+ sge->port_stats[p->iff].vlan_xtract++;
+ if (adapter->params.sge.polling)
+ vlan_hwaccel_receive_skb(skb, adapter->vlan_grp,
+ ntohs(p->vlan));
+ else
+ vlan_hwaccel_rx(skb, adapter->vlan_grp,
+ ntohs(p->vlan));
+ } else if (adapter->params.sge.polling)
+ netif_receive_skb(skb);
+ else
+ netif_rx(skb);
+ return 0;
+}
+
+/*
+ * Returns true if a command queue has enough available descriptors that
+ * we can resume Tx operation after temporarily disabling its packet queue.
+ */
+static inline int enough_free_Tx_descs(const struct cmdQ *q)
+{
+ unsigned int r = q->processed - q->cleaned;
+
+ return q->in_use - r < (q->size >> 1);
+}
+
+/*
+ * Called when sufficient space has become available in the SGE command queues
+ * after the Tx packet schedulers have been suspended to restart the Tx path.
+ */
+static void restart_tx_queues(struct sge *sge)
+{
+ struct adapter *adap = sge->adapter;
+
+ if (enough_free_Tx_descs(&sge->cmdQ[0])) {
+ int i;
+
+ for_each_port(adap, i) {
+ struct net_device *nd = adap->port[i].dev;
+
+ if (test_and_clear_bit(nd->if_port,
+ &sge->stopped_tx_queues) &&
+ netif_running(nd)) {
+ sge->stats.cmdQ_restarted[3]++;
+ netif_wake_queue(nd);
+ }
+ }
+ }
+}
+
+/*
+ * update_tx_info is called from the interrupt handler/NAPI to return cmdQ0
+ * information.
+ */
+static unsigned int update_tx_info(struct adapter *adapter,
+ unsigned int flags,
+ unsigned int pr0)
+{
+ struct sge *sge = adapter->sge;
+ struct cmdQ *cmdq = &sge->cmdQ[0];
+
+ cmdq->processed += pr0;
+
+ if (flags & F_CMDQ0_ENABLE) {
+ clear_bit(CMDQ_STAT_RUNNING, &cmdq->status);
+
+ if (cmdq->cleaned + cmdq->in_use != cmdq->processed &&
+ !test_and_set_bit(CMDQ_STAT_LAST_PKT_DB, &cmdq->status)) {
+ set_bit(CMDQ_STAT_RUNNING, &cmdq->status);
+ writel(F_CMDQ0_ENABLE, adapter->regs + A_SG_DOORBELL);
+ }
+ flags &= ~F_CMDQ0_ENABLE;
+ }
+
+ if (unlikely(sge->stopped_tx_queues != 0))
+ restart_tx_queues(sge);
+
+ return flags;
+}
+
+/*
+ * Process SGE responses, up to the supplied budget. Returns the number of
+ * responses processed. A negative budget is effectively unlimited.
+ */
+static int process_responses(struct adapter *adapter, int budget)
+{
+ struct sge *sge = adapter->sge;
+ struct respQ *q = &sge->respQ;
+ struct respQ_e *e = &q->entries[q->cidx];
+ int budget_left = budget;
+ unsigned int flags = 0;
+ unsigned int cmdq_processed[SGE_CMDQ_N] = {0, 0};
+
+
+ while (likely(budget_left && e->GenerationBit == q->genbit)) {
+ flags |= e->Qsleeping;
+
+ cmdq_processed[0] += e->Cmdq0CreditReturn;
+ cmdq_processed[1] += e->Cmdq1CreditReturn;
+
+ /* We batch updates to the TX side to avoid cacheline
+ * ping-pong of TX state information on MP where the sender
+ * might run on a different CPU than this function...
+ */
+ if (unlikely(flags & F_CMDQ0_ENABLE || cmdq_processed[0] > 64)) {
+ flags = update_tx_info(adapter, flags, cmdq_processed[0]);
+ cmdq_processed[0] = 0;
+ }
+ if (unlikely(cmdq_processed[1] > 16)) {
+ sge->cmdQ[1].processed += cmdq_processed[1];
+ cmdq_processed[1] = 0;
+ }
+ if (likely(e->DataValid)) {
+ struct freelQ *fl = &sge->freelQ[e->FreelistQid];
+
+ if (unlikely(!e->Sop || !e->Eop))
+ BUG();
+ if (unlikely(e->Offload))
+ unexpected_offload(adapter, fl);
+ else
+ sge_rx(sge, fl, e->BufferLength);
+
+ /*
+ * Note: this depends on each packet consuming a
+ * single free-list buffer; cf. the BUG above.
+ */
+ if (++fl->cidx == fl->size)
+ fl->cidx = 0;
+ if (unlikely(--fl->credits <
+ fl->size - SGE_FREEL_REFILL_THRESH))
+ refill_free_list(sge, fl);
+ } else
+ sge->stats.pure_rsps++;
+
+ e++;
+ if (unlikely(++q->cidx == q->size)) {
+ q->cidx = 0;
+ q->genbit ^= 1;
+ e = q->entries;
+ }
+ prefetch(e);
+
+ if (++q->credits > SGE_RESPQ_REPLENISH_THRES) {
+ writel(q->credits, adapter->regs + A_SG_RSPQUEUECREDIT);
+ q->credits = 0;
+ }
+ --budget_left;
+ }
+
+ flags = update_tx_info(adapter, flags, cmdq_processed[0]);
+ sge->cmdQ[1].processed += cmdq_processed[1];
+
+ budget -= budget_left;
+ return budget;
+}
+
+/*
+ * A simpler version of process_responses() that handles only pure (i.e.,
+ * non data-carrying) responses. Such respones are too light-weight to justify
+ * calling a softirq when using NAPI, so we handle them specially in hard
+ * interrupt context. The function is called with a pointer to a response,
+ * which the caller must ensure is a valid pure response. Returns 1 if it
+ * encounters a valid data-carrying response, 0 otherwise.
+ */
+static int process_pure_responses(struct adapter *adapter, struct respQ_e *e)
+{
+ struct sge *sge = adapter->sge;
+ struct respQ *q = &sge->respQ;
+ unsigned int flags = 0;
+ unsigned int cmdq_processed[SGE_CMDQ_N] = {0, 0};
+
+ do {
+ flags |= e->Qsleeping;
+
+ cmdq_processed[0] += e->Cmdq0CreditReturn;
+ cmdq_processed[1] += e->Cmdq1CreditReturn;
+
+ e++;
+ if (unlikely(++q->cidx == q->size)) {
+ q->cidx = 0;
+ q->genbit ^= 1;
+ e = q->entries;
+ }
+ prefetch(e);
+
+ if (++q->credits > SGE_RESPQ_REPLENISH_THRES) {
+ writel(q->credits, adapter->regs + A_SG_RSPQUEUECREDIT);
+ q->credits = 0;
+ }
+ sge->stats.pure_rsps++;
+ } while (e->GenerationBit == q->genbit && !e->DataValid);
+
+ flags = update_tx_info(adapter, flags, cmdq_processed[0]);
+ sge->cmdQ[1].processed += cmdq_processed[1];
+
+ return e->GenerationBit == q->genbit;
+}
+
+/*
+ * Handler for new data events when using NAPI. This does not need any locking
+ * or protection from interrupts as data interrupts are off at this point and
+ * other adapter interrupts do not interfere.
+ */
+static int t1_poll(struct net_device *dev, int *budget)
+{
+ struct adapter *adapter = dev->priv;
+ int effective_budget = min(*budget, dev->quota);
+
+ int work_done = process_responses(adapter, effective_budget);
+ *budget -= work_done;
+ dev->quota -= work_done;
+
+ if (work_done >= effective_budget)
+ return 1;
+
+ __netif_rx_complete(dev);
+
+ /*
+ * Because we don't atomically flush the following write it is
+ * possible that in very rare cases it can reach the device in a way
+ * that races with a new response being written plus an error interrupt
+ * causing the NAPI interrupt handler below to return unhandled status
+ * to the OS. To protect against this would require flushing the write
+ * and doing both the write and the flush with interrupts off. Way too
+ * expensive and unjustifiable given the rarity of the race.
+ */
+ writel(adapter->sge->respQ.cidx, adapter->regs + A_SG_SLEEPING);
+ return 0;
+}
+
+/*
+ * Returns true if the device is already scheduled for polling.
+ */
+static inline int napi_is_scheduled(struct net_device *dev)
+{
+ return test_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+/*
+ * NAPI version of the main interrupt handler.
+ */
+static irqreturn_t t1_interrupt_napi(int irq, void *data, struct pt_regs *regs)
+{
+ int handled;
+ struct adapter *adapter = data;
+ struct sge *sge = adapter->sge;
+ struct respQ *q = &adapter->sge->respQ;
+
+ /*
+ * Clear the SGE_DATA interrupt first thing. Normally the NAPI
+ * handler has control of the response queue and the interrupt handler
+ * can look at the queue reliably only once it knows NAPI is off.
+ * We can't wait that long to clear the SGE_DATA interrupt because we
+ * could race with t1_poll rearming the SGE interrupt, so we need to
+ * clear the interrupt speculatively and really early on.
+ */
+ writel(F_PL_INTR_SGE_DATA, adapter->regs + A_PL_CAUSE);
+
+ spin_lock(&adapter->async_lock);
+ if (!napi_is_scheduled(sge->netdev)) {
+ struct respQ_e *e = &q->entries[q->cidx];
+
+ if (e->GenerationBit == q->genbit) {
+ if (e->DataValid ||
+ process_pure_responses(adapter, e)) {
+ if (likely(napi_schedule_prep(sge->netdev)))
+ __netif_rx_schedule(sge->netdev);
+ else
+ printk(KERN_CRIT
+ "NAPI schedule failure!\n");
+ } else
+ writel(q->cidx, adapter->regs + A_SG_SLEEPING);
+ handled = 1;
+ goto unlock;
+ } else
+ writel(q->cidx, adapter->regs + A_SG_SLEEPING);
+ } else
+ if (readl(adapter->regs + A_PL_CAUSE) & F_PL_INTR_SGE_DATA)
+ printk(KERN_ERR "data interrupt while NAPI running\n");
+
+ handled = t1_slow_intr_handler(adapter);
+ if (!handled)
+ sge->stats.unhandled_irqs++;
+ unlock:
+ spin_unlock(&adapter->async_lock);
+ return IRQ_RETVAL(handled != 0);
+}
+
+/*
+ * Main interrupt handler, optimized assuming that we took a 'DATA'
+ * interrupt.
+ *
+ * 1. Clear the interrupt
+ * 2. Loop while we find valid descriptors and process them; accumulate
+ * information that can be processed after the loop
+ * 3. Tell the SGE at which index we stopped processing descriptors
+ * 4. Bookkeeping; free TX buffers, ring doorbell if there are any
+ * outstanding TX buffers waiting, replenish RX buffers, potentially
+ * reenable upper layers if they were turned off due to lack of TX
+ * resources which are available again.
+ * 5. If we took an interrupt, but no valid respQ descriptors was found we
+ * let the slow_intr_handler run and do error handling.
+ */
+static irqreturn_t t1_interrupt(int irq, void *cookie, struct pt_regs *regs)
+{
+ int work_done;
+ struct respQ_e *e;
+ struct adapter *adapter = cookie;
+ struct respQ *Q = &adapter->sge->respQ;
+
+ spin_lock(&adapter->async_lock);
+ e = &Q->entries[Q->cidx];
+ prefetch(e);
+
+ writel(F_PL_INTR_SGE_DATA, adapter->regs + A_PL_CAUSE);
+
+ if (likely(e->GenerationBit == Q->genbit))
+ work_done = process_responses(adapter, -1);
+ else
+ work_done = t1_slow_intr_handler(adapter);
+
+ /*
+ * The unconditional clearing of the PL_CAUSE above may have raced
+ * with DMA completion and the corresponding generation of a response
+ * to cause us to miss the resulting data interrupt. The next write
+ * is also unconditional to recover the missed interrupt and render
+ * this race harmless.
+ */
+ writel(Q->cidx, adapter->regs + A_SG_SLEEPING);
+
+ if (!work_done)
+ adapter->sge->stats.unhandled_irqs++;
+ spin_unlock(&adapter->async_lock);
+ return IRQ_RETVAL(work_done != 0);
+}
+
+intr_handler_t t1_select_intr_handler(adapter_t *adapter)
+{
+ return adapter->params.sge.polling ? t1_interrupt_napi : t1_interrupt;
+}
+
+/*
+ * Enqueues the sk_buff onto the cmdQ[qid] and has hardware fetch it.
+ *
+ * The code figures out how many entries the sk_buff will require in the
+ * cmdQ and updates the cmdQ data structure with the state once the enqueue
+ * has complete. Then, it doesn't access the global structure anymore, but
+ * uses the corresponding fields on the stack. In conjuction with a spinlock
+ * around that code, we can make the function reentrant without holding the
+ * lock when we actually enqueue (which might be expensive, especially on
+ * architectures with IO MMUs).
+ *
+ * This runs with softirqs disabled.
+ */
+unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
+ unsigned int qid, struct net_device *dev)
+{
+ struct sge *sge = adapter->sge;
+ struct cmdQ *q = &sge->cmdQ[qid];
+ unsigned int credits, pidx, genbit, count;
+
+ spin_lock(&q->lock);
+ reclaim_completed_tx(sge, q);
+
+ pidx = q->pidx;
+ credits = q->size - q->in_use;
+ count = 1 + skb_shinfo(skb)->nr_frags;
+
+ { /* Ethernet packet */
+ if (unlikely(credits < count)) {
+ netif_stop_queue(dev);
+ set_bit(dev->if_port, &sge->stopped_tx_queues);
+ sge->stats.cmdQ_full[3]++;
+ spin_unlock(&q->lock);
+ CH_ERR("%s: Tx ring full while queue awake!\n",
+ adapter->name);
+ return 1;
+ }
+ if (unlikely(credits - count < q->stop_thres)) {
+ sge->stats.cmdQ_full[3]++;
+ netif_stop_queue(dev);
+ set_bit(dev->if_port, &sge->stopped_tx_queues);
+ }
+ }
+ q->in_use += count;
+ genbit = q->genbit;
+ q->pidx += count;
+ if (q->pidx >= q->size) {
+ q->pidx -= q->size;
+ q->genbit ^= 1;
+ }
+ spin_unlock(&q->lock);
+
+ write_tx_descs(adapter, skb, pidx, genbit, q);
+
+ /*
+ * We always ring the doorbell for cmdQ1. For cmdQ0, we only ring
+ * the doorbell if the Q is asleep. There is a natural race, where
+ * the hardware is going to sleep just after we checked, however,
+ * then the interrupt handler will detect the outstanding TX packet
+ * and ring the doorbell for us.
+ */
+ if (qid)
+ doorbell_pio(adapter, F_CMDQ1_ENABLE);
+ else {
+ clear_bit(CMDQ_STAT_LAST_PKT_DB, &q->status);
+ if (test_and_set_bit(CMDQ_STAT_RUNNING, &q->status) == 0) {
+ set_bit(CMDQ_STAT_LAST_PKT_DB, &q->status);
+ writel(F_CMDQ0_ENABLE, adapter->regs + A_SG_DOORBELL);
+ }
+ }
+ return 0;
+}
+
+#define MK_ETH_TYPE_MSS(type, mss) (((mss) & 0x3FFF) | ((type) << 14))
+
+/*
+ * eth_hdr_len - return the length of an Ethernet header
+ * @data: pointer to the start of the Ethernet header
+ *
+ * Returns the length of an Ethernet header, including optional VLAN tag.
+ */
+static inline int eth_hdr_len(const void *data)
+{
+ const struct ethhdr *e = data;
+
+ return e->h_proto == htons(ETH_P_8021Q) ? VLAN_ETH_HLEN : ETH_HLEN;
+}
+
+/*
+ * Adds the CPL header to the sk_buff and passes it to t1_sge_tx.
+ */
+int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct adapter *adapter = dev->priv;
+ struct sge_port_stats *st = &adapter->sge->port_stats[dev->if_port];
+ struct sge *sge = adapter->sge;
+ struct cpl_tx_pkt *cpl;
+
+#ifdef NETIF_F_TSO
+ if (skb_shinfo(skb)->tso_size) {
+ int eth_type;
+ struct cpl_tx_pkt_lso *hdr;
+
+ st->tso++;
+
+ eth_type = skb->nh.raw - skb->data == ETH_HLEN ?
+ CPL_ETH_II : CPL_ETH_II_VLAN;
+
+ hdr = (struct cpl_tx_pkt_lso *)skb_push(skb, sizeof(*hdr));
+ hdr->opcode = CPL_TX_PKT_LSO;
+ hdr->ip_csum_dis = hdr->l4_csum_dis = 0;
+ hdr->ip_hdr_words = skb->nh.iph->ihl;
+ hdr->tcp_hdr_words = skb->h.th->doff;
+ hdr->eth_type_mss = htons(MK_ETH_TYPE_MSS(eth_type,
+ skb_shinfo(skb)->tso_size));
+ hdr->len = htonl(skb->len - sizeof(*hdr));
+ cpl = (struct cpl_tx_pkt *)hdr;
+ sge->stats.tx_lso_pkts++;
+ } else
+#endif
+ {
+ /*
+ * Packets shorter than ETH_HLEN can break the MAC, drop them
+ * early. Also, we may get oversized packets because some
+ * parts of the kernel don't handle our unusual hard_header_len
+ * right, drop those too.
+ */
+ if (unlikely(skb->len < ETH_HLEN ||
+ skb->len > dev->mtu + eth_hdr_len(skb->data))) {
+ dev_kfree_skb_any(skb);
+ return NET_XMIT_SUCCESS;
+ }
+
+ /*
+ * We are using a non-standard hard_header_len and some kernel
+ * components, such as pktgen, do not handle it right.
+ * Complain when this happens but try to fix things up.
+ */
+ if (unlikely(skb_headroom(skb) <
+ dev->hard_header_len - ETH_HLEN)) {
+ struct sk_buff *orig_skb = skb;
+
+ if (net_ratelimit())
+ printk(KERN_ERR "%s: inadequate headroom in "
+ "Tx packet\n", dev->name);
+ skb = skb_realloc_headroom(skb, sizeof(*cpl));
+ dev_kfree_skb_any(orig_skb);
+ if (!skb)
+ return -ENOMEM;
+ }
+
+ if (!(adapter->flags & UDP_CSUM_CAPABLE) &&
+ skb->ip_summed == CHECKSUM_HW &&
+ skb->nh.iph->protocol == IPPROTO_UDP)
+ if (unlikely(skb_checksum_help(skb, 0))) {
+ dev_kfree_skb_any(skb);
+ return -ENOMEM;
+ }
+
+ /* Hmmm, assuming to catch the gratious arp... and we'll use
+ * it to flush out stuck espi packets...
+ */
+ if (unlikely(!adapter->sge->espibug_skb)) {
+ if (skb->protocol == htons(ETH_P_ARP) &&
+ skb->nh.arph->ar_op == htons(ARPOP_REQUEST)) {
+ adapter->sge->espibug_skb = skb;
+ /* We want to re-use this skb later. We
+ * simply bump the reference count and it
+ * will not be freed...
+ */
+ skb = skb_get(skb);
+ }
+ }
+
+ cpl = (struct cpl_tx_pkt *)__skb_push(skb, sizeof(*cpl));
+ cpl->opcode = CPL_TX_PKT;
+ cpl->ip_csum_dis = 1; /* SW calculates IP csum */
+ cpl->l4_csum_dis = skb->ip_summed == CHECKSUM_HW ? 0 : 1;
+ /* the length field isn't used so don't bother setting it */
+
+ st->tx_cso += (skb->ip_summed == CHECKSUM_HW);
+ sge->stats.tx_do_cksum += (skb->ip_summed == CHECKSUM_HW);
+ sge->stats.tx_reg_pkts++;
+ }
+ cpl->iff = dev->if_port;
+
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+ if (adapter->vlan_grp && vlan_tx_tag_present(skb)) {
+ cpl->vlan_valid = 1;
+ cpl->vlan = htons(vlan_tx_tag_get(skb));
+ st->vlan_insert++;
+ } else
+#endif
+ cpl->vlan_valid = 0;
+
+ dev->trans_start = jiffies;
+ return t1_sge_tx(skb, adapter, 0, dev);
+}
+
+/*
+ * Callback for the Tx buffer reclaim timer. Runs with softirqs disabled.
+ */
+static void sge_tx_reclaim_cb(unsigned long data)
+{
+ int i;
+ struct sge *sge = (struct sge *)data;
+
+ for (i = 0; i < SGE_CMDQ_N; ++i) {
+ struct cmdQ *q = &sge->cmdQ[i];
+
+ if (!spin_trylock(&q->lock))
+ continue;
+
+ reclaim_completed_tx(sge, q);
+ if (i == 0 && q->in_use) /* flush pending credits */
+ writel(F_CMDQ0_ENABLE,
+ sge->adapter->regs + A_SG_DOORBELL);
+
+ spin_unlock(&q->lock);
+ }
+ mod_timer(&sge->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
+}
+
+/*
+ * Propagate changes of the SGE coalescing parameters to the HW.
+ */
+int t1_sge_set_coalesce_params(struct sge *sge, struct sge_params *p)
+{
+ sge->netdev->poll = t1_poll;
+ sge->fixed_intrtimer = p->rx_coalesce_usecs *
+ core_ticks_per_usec(sge->adapter);
+ writel(sge->fixed_intrtimer, sge->adapter->regs + A_SG_INTRTIMER);
+ return 0;
+}
+
+/*
+ * Allocates both RX and TX resources and configures the SGE. However,
+ * the hardware is not enabled yet.
+ */
+int t1_sge_configure(struct sge *sge, struct sge_params *p)
+{
+ if (alloc_rx_resources(sge, p))
+ return -ENOMEM;
+ if (alloc_tx_resources(sge, p)) {
+ free_rx_resources(sge);
+ return -ENOMEM;
+ }
+ configure_sge(sge, p);
+
+ /*
+ * Now that we have sized the free lists calculate the payload
+ * capacity of the large buffers. Other parts of the driver use
+ * this to set the max offload coalescing size so that RX packets
+ * do not overflow our large buffers.
+ */
+ p->large_buf_capacity = jumbo_payload_capacity(sge);
+ return 0;
+}
+
+/*
+ * Disables the DMA engine.
+ */
+void t1_sge_stop(struct sge *sge)
+{
+ writel(0, sge->adapter->regs + A_SG_CONTROL);
+ (void) readl(sge->adapter->regs + A_SG_CONTROL); /* flush */
+ if (is_T2(sge->adapter))
+ del_timer_sync(&sge->espibug_timer);
+ del_timer_sync(&sge->tx_reclaim_timer);
+}
+
+/*
+ * Enables the DMA engine.
+ */
+void t1_sge_start(struct sge *sge)
+{
+ refill_free_list(sge, &sge->freelQ[0]);
+ refill_free_list(sge, &sge->freelQ[1]);
+
+ writel(sge->sge_control, sge->adapter->regs + A_SG_CONTROL);
+ doorbell_pio(sge->adapter, F_FL0_ENABLE | F_FL1_ENABLE);
+ (void) readl(sge->adapter->regs + A_SG_CONTROL); /* flush */
+
+ mod_timer(&sge->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
+
+ if (is_T2(sge->adapter))
+ mod_timer(&sge->espibug_timer, jiffies + sge->espibug_timeout);
+}
+
+/*
+ * Callback for the T2 ESPI 'stuck packet feature' workaorund
+ */
+static void espibug_workaround(void *data)
+{
+ struct adapter *adapter = (struct adapter *)data;
+ struct sge *sge = adapter->sge;
+
+ if (netif_running(adapter->port[0].dev)) {
+ struct sk_buff *skb = sge->espibug_skb;
+
+ u32 seop = t1_espi_get_mon(adapter, 0x930, 0);
+
+ if ((seop & 0xfff0fff) == 0xfff && skb) {
+ if (!skb->cb[0]) {
+ u8 ch_mac_addr[ETH_ALEN] =
+ {0x0, 0x7, 0x43, 0x0, 0x0, 0x0};
+ memcpy(skb->data + sizeof(struct cpl_tx_pkt),
+ ch_mac_addr, ETH_ALEN);
+ memcpy(skb->data + skb->len - 10, ch_mac_addr,
+ ETH_ALEN);
+ skb->cb[0] = 0xff;
+ }
+
+ /* bump the reference count to avoid freeing of the
+ * skb once the DMA has completed.
+ */
+ skb = skb_get(skb);
+ t1_sge_tx(skb, adapter, 0, adapter->port[0].dev);
+ }
+ }
+ mod_timer(&sge->espibug_timer, jiffies + sge->espibug_timeout);
+}
+
+/*
+ * Creates a t1_sge structure and returns suggested resource parameters.
+ */
+struct sge * __devinit t1_sge_create(struct adapter *adapter,
+ struct sge_params *p)
+{
+ struct sge *sge = kmalloc(sizeof(*sge), GFP_KERNEL);
+
+ if (!sge)
+ return NULL;
+ memset(sge, 0, sizeof(*sge));
+
+ sge->adapter = adapter;
+ sge->netdev = adapter->port[0].dev;
+ sge->rx_pkt_pad = t1_is_T1B(adapter) ? 0 : 2;
+ sge->jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
+
+ init_timer(&sge->tx_reclaim_timer);
+ sge->tx_reclaim_timer.data = (unsigned long)sge;
+ sge->tx_reclaim_timer.function = sge_tx_reclaim_cb;
+
+ if (is_T2(sge->adapter)) {
+ init_timer(&sge->espibug_timer);
+ sge->espibug_timer.function = (void *)&espibug_workaround;
+ sge->espibug_timer.data = (unsigned long)sge->adapter;
+ sge->espibug_timeout = 1;
+ }
+
+
+ p->cmdQ_size[0] = SGE_CMDQ0_E_N;
+ p->cmdQ_size[1] = SGE_CMDQ1_E_N;
+ p->freelQ_size[!sge->jumbo_fl] = SGE_FREEL_SIZE;
+ p->freelQ_size[sge->jumbo_fl] = SGE_JUMBO_FREEL_SIZE;
+ p->rx_coalesce_usecs = 50;
+ p->coalesce_enable = 0;
+ p->sample_interval_usecs = 0;
+ p->polling = 0;
+
+ return sge;
+}
diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h
new file mode 100644
index 00000000000..434b2558685
--- /dev/null
+++ b/drivers/net/chelsio/sge.h
@@ -0,0 +1,105 @@
+/*****************************************************************************
+ * *
+ * File: sge.h *
+ * $Revision: 1.11 $ *
+ * $Date: 2005/06/21 22:10:55 $ *
+ * Description: *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_SGE_H_
+#define _CXGB_SGE_H_
+
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <asm/byteorder.h>
+
+#ifndef IRQ_RETVAL
+#define IRQ_RETVAL(x)
+typedef void irqreturn_t;
+#endif
+
+typedef irqreturn_t (*intr_handler_t)(int, void *, struct pt_regs *);
+
+struct sge_intr_counts {
+ unsigned int respQ_empty; /* # times respQ empty */
+ unsigned int respQ_overflow; /* # respQ overflow (fatal) */
+ unsigned int freelistQ_empty; /* # times freelist empty */
+ unsigned int pkt_too_big; /* packet too large (fatal) */
+ unsigned int pkt_mismatch;
+ unsigned int cmdQ_full[3]; /* not HW IRQ, host cmdQ[] full */
+ unsigned int cmdQ_restarted[3];/* # of times cmdQ X was restarted */
+ unsigned int ethernet_pkts; /* # of Ethernet packets received */
+ unsigned int offload_pkts; /* # of offload packets received */
+ unsigned int offload_bundles; /* # of offload pkt bundles delivered */
+ unsigned int pure_rsps; /* # of non-payload responses */
+ unsigned int unhandled_irqs; /* # of unhandled interrupts */
+ unsigned int tx_ipfrags;
+ unsigned int tx_reg_pkts;
+ unsigned int tx_lso_pkts;
+ unsigned int tx_do_cksum;
+};
+
+struct sge_port_stats {
+ unsigned long rx_cso_good; /* # of successful RX csum offloads */
+ unsigned long tx_cso; /* # of TX checksum offloads */
+ unsigned long vlan_xtract; /* # of VLAN tag extractions */
+ unsigned long vlan_insert; /* # of VLAN tag extractions */
+ unsigned long tso; /* # of TSO requests */
+ unsigned long rx_drops; /* # of packets dropped due to no mem */
+};
+
+struct sk_buff;
+struct net_device;
+struct adapter;
+struct sge_params;
+struct sge;
+
+struct sge *t1_sge_create(struct adapter *, struct sge_params *);
+int t1_sge_configure(struct sge *, struct sge_params *);
+int t1_sge_set_coalesce_params(struct sge *, struct sge_params *);
+void t1_sge_destroy(struct sge *);
+intr_handler_t t1_select_intr_handler(adapter_t *adapter);
+unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
+ unsigned int qid, struct net_device *netdev);
+int t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
+void t1_set_vlan_accel(struct adapter *adapter, int on_off);
+void t1_sge_start(struct sge *);
+void t1_sge_stop(struct sge *);
+int t1_sge_intr_error_handler(struct sge *);
+void t1_sge_intr_enable(struct sge *);
+void t1_sge_intr_disable(struct sge *);
+void t1_sge_intr_clear(struct sge *);
+const struct sge_intr_counts *t1_sge_get_intr_counts(struct sge *sge);
+const struct sge_port_stats *t1_sge_get_port_stats(struct sge *sge, int port);
+
+#endif /* _CXGB_SGE_H_ */
diff --git a/drivers/net/chelsio/subr.c b/drivers/net/chelsio/subr.c
new file mode 100644
index 00000000000..1ebb5d149ae
--- /dev/null
+++ b/drivers/net/chelsio/subr.c
@@ -0,0 +1,812 @@
+/*****************************************************************************
+ * *
+ * File: subr.c *
+ * $Revision: 1.27 $ *
+ * $Date: 2005/06/22 01:08:36 $ *
+ * Description: *
+ * Various subroutines (intr,pio,etc.) used by Chelsio 10G Ethernet driver. *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
+ * All rights reserved. *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: Dimitrios Michailidis <dm@chelsio.com> *
+ * Tina Yang <tainay@chelsio.com> *
+ * Felix Marti <felix@chelsio.com> *
+ * Scott Bardone <sbardone@chelsio.com> *
+ * Kurt Ottaway <kottaway@chelsio.com> *
+ * Frank DiMambro <frank@chelsio.com> *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#include "common.h"
+#include "elmer0.h"
+#include "regs.h"
+#include "gmac.h"
+#include "cphy.h"
+#include "sge.h"
+#include "espi.h"
+
+/**
+ * t1_wait_op_done - wait until an operation is completed
+ * @adapter: the adapter performing the operation
+ * @reg: the register to check for completion
+ * @mask: a single-bit field within @reg that indicates completion
+ * @polarity: the value of the field when the operation is completed
+ * @attempts: number of check iterations
+ * @delay: delay in usecs between iterations
+ *
+ * Wait until an operation is completed by checking a bit in a register
+ * up to @attempts times. Returns %0 if the operation completes and %1
+ * otherwise.
+ */
+static int t1_wait_op_done(adapter_t *adapter, int reg, u32 mask, int polarity,
+ int attempts, int delay)
+{
+ while (1) {
+ u32 val = readl(adapter->regs + reg) & mask;
+
+ if (!!val == polarity)
+ return 0;
+ if (--attempts == 0)
+ return 1;
+ if (delay)
+ udelay(delay);
+ }
+}
+
+#define TPI_ATTEMPTS 50
+
+/*
+ * Write a register over the TPI interface (unlocked and locked versions).
+ */
+static int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value)
+{
+ int tpi_busy;
+
+ writel(addr, adapter->regs + A_TPI_ADDR);
+ writel(value, adapter->regs + A_TPI_WR_DATA);
+ writel(F_TPIWR, adapter->regs + A_TPI_CSR);
+
+ tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1,
+ TPI_ATTEMPTS, 3);
+ if (tpi_busy)
+ CH_ALERT("%s: TPI write to 0x%x failed\n",
+ adapter->name, addr);
+ return tpi_busy;
+}
+
+int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value)
+{
+ int ret;
+
+ spin_lock(&(adapter)->tpi_lock);
+ ret = __t1_tpi_write(adapter, addr, value);
+ spin_unlock(&(adapter)->tpi_lock);
+ return ret;
+}
+
+/*
+ * Read a register over the TPI interface (unlocked and locked versions).
+ */
+static int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp)
+{
+ int tpi_busy;
+
+ writel(addr, adapter->regs + A_TPI_ADDR);
+ writel(0, adapter->regs + A_TPI_CSR);
+
+ tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1,
+ TPI_ATTEMPTS, 3);
+ if (tpi_busy)
+ CH_ALERT("%s: TPI read from 0x%x failed\n",
+ adapter->name, addr);
+ else
+ *valp = readl(adapter->regs + A_TPI_RD_DATA);
+ return tpi_busy;
+}
+
+int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp)
+{
+ int ret;
+
+ spin_lock(&(adapter)->tpi_lock);
+ ret = __t1_tpi_read(adapter, addr, valp);
+ spin_unlock(&(adapter)->tpi_lock);
+ return ret;
+}
+
+/*
+ * Called when a port's link settings change to propagate the new values to the
+ * associated PHY and MAC. After performing the common tasks it invokes an
+ * OS-specific handler.
+ */
+/* static */ void link_changed(adapter_t *adapter, int port_id)
+{
+ int link_ok, speed, duplex, fc;
+ struct cphy *phy = adapter->port[port_id].phy;
+ struct link_config *lc = &adapter->port[port_id].link_config;
+
+ phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
+
+ lc->speed = speed < 0 ? SPEED_INVALID : speed;
+ lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
+ if (!(lc->requested_fc & PAUSE_AUTONEG))
+ fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
+
+ if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE) {
+ /* Set MAC speed, duplex, and flow control to match PHY. */
+ struct cmac *mac = adapter->port[port_id].mac;
+
+ mac->ops->set_speed_duplex_fc(mac, speed, duplex, fc);
+ lc->fc = (unsigned char)fc;
+ }
+ t1_link_changed(adapter, port_id, link_ok, speed, duplex, fc);
+}
+
+static int t1_pci_intr_handler(adapter_t *adapter)
+{
+ u32 pcix_cause;
+
+ pci_read_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, &pcix_cause);
+
+ if (pcix_cause) {
+ pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE,
+ pcix_cause);
+ t1_fatal_err(adapter); /* PCI errors are fatal */
+ }
+ return 0;
+}
+
+
+/*
+ * Wait until Elmer's MI1 interface is ready for new operations.
+ */
+static int mi1_wait_until_ready(adapter_t *adapter, int mi1_reg)
+{
+ int attempts = 100, busy;
+
+ do {
+ u32 val;
+
+ __t1_tpi_read(adapter, mi1_reg, &val);
+ busy = val & F_MI1_OP_BUSY;
+ if (busy)
+ udelay(10);
+ } while (busy && --attempts);
+ if (busy)
+ CH_ALERT("%s: MDIO operation timed out\n",
+ adapter->name);
+ return busy;
+}
+
+/*
+ * MI1 MDIO initialization.
+ */
+static void mi1_mdio_init(adapter_t *adapter, const struct board_info *bi)
+{
+ u32 clkdiv = bi->clock_elmer0 / (2 * bi->mdio_mdc) - 1;
+ u32 val = F_MI1_PREAMBLE_ENABLE | V_MI1_MDI_INVERT(bi->mdio_mdiinv) |
+ V_MI1_MDI_ENABLE(bi->mdio_mdien) | V_MI1_CLK_DIV(clkdiv);
+
+ if (!(bi->caps & SUPPORTED_10000baseT_Full))
+ val |= V_MI1_SOF(1);
+ t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_CFG, val);
+}
+
+static int mi1_mdio_ext_read(adapter_t *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int *valp)
+{
+ u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr);
+
+ spin_lock(&(adapter)->tpi_lock);
+
+ /* Write the address we want. */
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr);
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr);
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP,
+ MI1_OP_INDIRECT_ADDRESS);
+ mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+
+ /* Write the operation we want. */
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_READ);
+ mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+
+ /* Read the data. */
+ __t1_tpi_read(adapter, A_ELMER0_PORT0_MI1_DATA, valp);
+ spin_unlock(&(adapter)->tpi_lock);
+ return 0;
+}
+
+static int mi1_mdio_ext_write(adapter_t *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int val)
+{
+ u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr);
+
+ spin_lock(&(adapter)->tpi_lock);
+
+ /* Write the address we want. */
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr);
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr);
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP,
+ MI1_OP_INDIRECT_ADDRESS);
+ mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+
+ /* Write the data. */
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, val);
+ __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_WRITE);
+ mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+ spin_unlock(&(adapter)->tpi_lock);
+ return 0;
+}
+
+static struct mdio_ops mi1_mdio_ext_ops = {
+ mi1_mdio_init,
+ mi1_mdio_ext_read,
+ mi1_mdio_ext_write
+};
+
+enum {
+ CH_BRD_N110_1F,
+ CH_BRD_N210_1F,
+};
+
+static struct board_info t1_board[] = {
+
+{ CHBT_BOARD_N110, 1/*ports#*/,
+ SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T1,
+ CHBT_MAC_PM3393, CHBT_PHY_88X2010,
+ 125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/,
+ 1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/,
+ 0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops,
+ &t1_mv88x201x_ops, &mi1_mdio_ext_ops,
+ "Chelsio N110 1x10GBaseX NIC" },
+
+{ CHBT_BOARD_N210, 1/*ports#*/,
+ SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T2,
+ CHBT_MAC_PM3393, CHBT_PHY_88X2010,
+ 125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/,
+ 1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/,
+ 0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops,
+ &t1_mv88x201x_ops, &mi1_mdio_ext_ops,
+ "Chelsio N210 1x10GBaseX NIC" },
+
+};
+
+struct pci_device_id t1_pci_tbl[] = {
+ CH_DEVICE(7, 0, CH_BRD_N110_1F),
+ CH_DEVICE(10, 1, CH_BRD_N210_1F),
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, t1_pci_tbl);
+
+/*
+ * Return the board_info structure with a given index. Out-of-range indices
+ * return NULL.
+ */
+const struct board_info *t1_get_board_info(unsigned int board_id)
+{
+ return board_id < ARRAY_SIZE(t1_board) ? &t1_board[board_id] : NULL;
+}
+
+struct chelsio_vpd_t {
+ u32 format_version;
+ u8 serial_number[16];
+ u8 mac_base_address[6];
+ u8 pad[2]; /* make multiple-of-4 size requirement explicit */
+};
+
+#define EEPROMSIZE (8 * 1024)
+#define EEPROM_MAX_POLL 4
+
+/*
+ * Read SEEPROM. A zero is written to the flag register when the addres is
+ * written to the Control register. The hardware device will set the flag to a
+ * one when 4B have been transferred to the Data register.
+ */
+int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data)
+{
+ int i = EEPROM_MAX_POLL;
+ u16 val;
+
+ if (addr >= EEPROMSIZE || (addr & 3))
+ return -EINVAL;
+
+ pci_write_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, (u16)addr);
+ do {
+ udelay(50);
+ pci_read_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, &val);
+ } while (!(val & F_VPD_OP_FLAG) && --i);
+
+ if (!(val & F_VPD_OP_FLAG)) {
+ CH_ERR("%s: reading EEPROM address 0x%x failed\n",
+ adapter->name, addr);
+ return -EIO;
+ }
+ pci_read_config_dword(adapter->pdev, A_PCICFG_VPD_DATA, data);
+ *data = le32_to_cpu(*data);
+ return 0;
+}
+
+static int t1_eeprom_vpd_get(adapter_t *adapter, struct chelsio_vpd_t *vpd)
+{
+ int addr, ret = 0;
+
+ for (addr = 0; !ret && addr < sizeof(*vpd); addr += sizeof(u32))
+ ret = t1_seeprom_read(adapter, addr,
+ (u32 *)((u8 *)vpd + addr));
+
+ return ret;
+}
+
+/*
+ * Read a port's MAC address from the VPD ROM.
+ */
+static int vpd_macaddress_get(adapter_t *adapter, int index, u8 mac_addr[])
+{
+ struct chelsio_vpd_t vpd;
+
+ if (t1_eeprom_vpd_get(adapter, &vpd))
+ return 1;
+ memcpy(mac_addr, vpd.mac_base_address, 5);
+ mac_addr[5] = vpd.mac_base_address[5] + index;
+ return 0;
+}
+
+/*
+ * Set up the MAC/PHY according to the requested link settings.
+ *
+ * If the PHY can auto-negotiate first decide what to advertise, then
+ * enable/disable auto-negotiation as desired and reset.
+ *
+ * If the PHY does not auto-negotiate we just reset it.
+ *
+ * If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
+ * otherwise do it later based on the outcome of auto-negotiation.
+ */
+int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc)
+{
+ unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
+
+ if (lc->supported & SUPPORTED_Autoneg) {
+ lc->advertising &= ~(ADVERTISED_ASYM_PAUSE | ADVERTISED_PAUSE);
+ if (fc) {
+ lc->advertising |= ADVERTISED_ASYM_PAUSE;
+ if (fc == (PAUSE_RX | PAUSE_TX))
+ lc->advertising |= ADVERTISED_PAUSE;
+ }
+ phy->ops->advertise(phy, lc->advertising);
+
+ if (lc->autoneg == AUTONEG_DISABLE) {
+ lc->speed = lc->requested_speed;
+ lc->duplex = lc->requested_duplex;
+ lc->fc = (unsigned char)fc;
+ mac->ops->set_speed_duplex_fc(mac, lc->speed,
+ lc->duplex, fc);
+ /* Also disables autoneg */
+ phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex);
+ phy->ops->reset(phy, 0);
+ } else
+ phy->ops->autoneg_enable(phy); /* also resets PHY */
+ } else {
+ mac->ops->set_speed_duplex_fc(mac, -1, -1, fc);
+ lc->fc = (unsigned char)fc;
+ phy->ops->reset(phy, 0);
+ }
+ return 0;
+}
+
+/*
+ * External interrupt handler for boards using elmer0.
+ */
+int elmer0_ext_intr_handler(adapter_t *adapter)
+{
+ struct cphy *phy;
+ int phy_cause;
+ u32 cause;
+
+ t1_tpi_read(adapter, A_ELMER0_INT_CAUSE, &cause);
+
+ switch (board_info(adapter)->board) {
+ case CHBT_BOARD_N210:
+ case CHBT_BOARD_N110:
+ if (cause & ELMER0_GP_BIT6) { /* Marvell 88x2010 interrupt */
+ phy = adapter->port[0].phy;
+ phy_cause = phy->ops->interrupt_handler(phy);
+ if (phy_cause & cphy_cause_link_change)
+ link_changed(adapter, 0);
+ }
+ break;
+ }
+ t1_tpi_write(adapter, A_ELMER0_INT_CAUSE, cause);
+ return 0;
+}
+
+/* Enables all interrupts. */
+void t1_interrupts_enable(adapter_t *adapter)
+{
+ unsigned int i;
+ u32 pl_intr;
+
+ adapter->slow_intr_mask = F_PL_INTR_SGE_ERR;
+
+ t1_sge_intr_enable(adapter->sge);
+ if (adapter->espi) {
+ adapter->slow_intr_mask |= F_PL_INTR_ESPI;
+ t1_espi_intr_enable(adapter->espi);
+ }
+
+ /* Enable MAC/PHY interrupts for each port. */
+ for_each_port(adapter, i) {
+ adapter->port[i].mac->ops->interrupt_enable(adapter->port[i].mac);
+ adapter->port[i].phy->ops->interrupt_enable(adapter->port[i].phy);
+ }
+
+ /* Enable PCIX & external chip interrupts on ASIC boards. */
+ pl_intr = readl(adapter->regs + A_PL_ENABLE);
+
+ /* PCI-X interrupts */
+ pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE,
+ 0xffffffff);
+
+ adapter->slow_intr_mask |= F_PL_INTR_EXT | F_PL_INTR_PCIX;
+ pl_intr |= F_PL_INTR_EXT | F_PL_INTR_PCIX;
+ writel(pl_intr, adapter->regs + A_PL_ENABLE);
+}
+
+/* Disables all interrupts. */
+void t1_interrupts_disable(adapter_t* adapter)
+{
+ unsigned int i;
+
+ t1_sge_intr_disable(adapter->sge);
+ if (adapter->espi)
+ t1_espi_intr_disable(adapter->espi);
+
+ /* Disable MAC/PHY interrupts for each port. */
+ for_each_port(adapter, i) {
+ adapter->port[i].mac->ops->interrupt_disable(adapter->port[i].mac);
+ adapter->port[i].phy->ops->interrupt_disable(adapter->port[i].phy);
+ }
+
+ /* Disable PCIX & external chip interrupts. */
+ writel(0, adapter->regs + A_PL_ENABLE);
+
+ /* PCI-X interrupts */
+ pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE, 0);
+
+ adapter->slow_intr_mask = 0;
+}
+
+/* Clears all interrupts */
+void t1_interrupts_clear(adapter_t* adapter)
+{
+ unsigned int i;
+ u32 pl_intr;
+
+
+ t1_sge_intr_clear(adapter->sge);
+ if (adapter->espi)
+ t1_espi_intr_clear(adapter->espi);
+
+ /* Clear MAC/PHY interrupts for each port. */
+ for_each_port(adapter, i) {
+ adapter->port[i].mac->ops->interrupt_clear(adapter->port[i].mac);
+ adapter->port[i].phy->ops->interrupt_clear(adapter->port[i].phy);
+ }
+
+ /* Enable interrupts for external devices. */
+ pl_intr = readl(adapter->regs + A_PL_CAUSE);
+
+ writel(pl_intr | F_PL_INTR_EXT | F_PL_INTR_PCIX,
+ adapter->regs + A_PL_CAUSE);
+
+ /* PCI-X interrupts */
+ pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, 0xffffffff);
+}
+
+/*
+ * Slow path interrupt handler for ASICs.
+ */
+int t1_slow_intr_handler(adapter_t *adapter)
+{
+ u32 cause = readl(adapter->regs + A_PL_CAUSE);
+
+ cause &= adapter->slow_intr_mask;
+ if (!cause)
+ return 0;
+ if (cause & F_PL_INTR_SGE_ERR)
+ t1_sge_intr_error_handler(adapter->sge);
+ if (cause & F_PL_INTR_ESPI)
+ t1_espi_intr_handler(adapter->espi);
+ if (cause & F_PL_INTR_PCIX)
+ t1_pci_intr_handler(adapter);
+ if (cause & F_PL_INTR_EXT)
+ t1_elmer0_ext_intr(adapter);
+
+ /* Clear the interrupts just processed. */
+ writel(cause, adapter->regs + A_PL_CAUSE);
+ (void)readl(adapter->regs + A_PL_CAUSE); /* flush writes */
+ return 1;
+}
+
+/* Pause deadlock avoidance parameters */
+#define DROP_MSEC 16
+#define DROP_PKTS_CNT 1
+
+static void set_csum_offload(adapter_t *adapter, u32 csum_bit, int enable)
+{
+ u32 val = readl(adapter->regs + A_TP_GLOBAL_CONFIG);
+
+ if (enable)
+ val |= csum_bit;
+ else
+ val &= ~csum_bit;
+ writel(val, adapter->regs + A_TP_GLOBAL_CONFIG);
+}
+
+void t1_tp_set_ip_checksum_offload(adapter_t *adapter, int enable)
+{
+ set_csum_offload(adapter, F_IP_CSUM, enable);
+}
+
+void t1_tp_set_udp_checksum_offload(adapter_t *adapter, int enable)
+{
+ set_csum_offload(adapter, F_UDP_CSUM, enable);
+}
+
+void t1_tp_set_tcp_checksum_offload(adapter_t *adapter, int enable)
+{
+ set_csum_offload(adapter, F_TCP_CSUM, enable);
+}
+
+static void t1_tp_reset(adapter_t *adapter, unsigned int tp_clk)
+{
+ u32 val;
+
+ val = F_TP_IN_CSPI_CPL | F_TP_IN_CSPI_CHECK_IP_CSUM |
+ F_TP_IN_CSPI_CHECK_TCP_CSUM | F_TP_IN_ESPI_ETHERNET;
+ val |= F_TP_IN_ESPI_CHECK_IP_CSUM |
+ F_TP_IN_ESPI_CHECK_TCP_CSUM;
+ writel(val, adapter->regs + A_TP_IN_CONFIG);
+ writel(F_TP_OUT_CSPI_CPL |
+ F_TP_OUT_ESPI_ETHERNET |
+ F_TP_OUT_ESPI_GENERATE_IP_CSUM |
+ F_TP_OUT_ESPI_GENERATE_TCP_CSUM,
+ adapter->regs + A_TP_OUT_CONFIG);
+
+ val = readl(adapter->regs + A_TP_GLOBAL_CONFIG);
+ val &= ~(F_IP_CSUM | F_UDP_CSUM | F_TCP_CSUM);
+ writel(val, adapter->regs + A_TP_GLOBAL_CONFIG);
+
+ /*
+ * Enable pause frame deadlock prevention.
+ */
+ if (is_T2(adapter)) {
+ u32 drop_ticks = DROP_MSEC * (tp_clk / 1000);
+
+ writel(F_ENABLE_TX_DROP | F_ENABLE_TX_ERROR |
+ V_DROP_TICKS_CNT(drop_ticks) |
+ V_NUM_PKTS_DROPPED(DROP_PKTS_CNT),
+ adapter->regs + A_TP_TX_DROP_CONFIG);
+ }
+
+ writel(F_TP_RESET, adapter->regs + A_TP_RESET);
+}
+
+int __devinit t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
+ struct adapter_params *p)
+{
+ p->chip_version = bi->chip_term;
+ if (p->chip_version == CHBT_TERM_T1 ||
+ p->chip_version == CHBT_TERM_T2) {
+ u32 val = readl(adapter->regs + A_TP_PC_CONFIG);
+
+ val = G_TP_PC_REV(val);
+ if (val == 2)
+ p->chip_revision = TERM_T1B;
+ else if (val == 3)
+ p->chip_revision = TERM_T2;
+ else
+ return -1;
+ } else
+ return -1;
+ return 0;
+}
+
+/*
+ * Enable board components other than the Chelsio chip, such as external MAC
+ * and PHY.
+ */
+static int board_init(adapter_t *adapter, const struct board_info *bi)
+{
+ switch (bi->board) {
+ case CHBT_BOARD_N110:
+ case CHBT_BOARD_N210:
+ writel(V_TPIPAR(0xf), adapter->regs + A_TPI_PAR);
+ t1_tpi_write(adapter, A_ELMER0_GPO, 0x800);
+ break;
+ }
+ return 0;
+}
+
+/*
+ * Initialize and configure the Terminator HW modules. Note that external
+ * MAC and PHYs are initialized separately.
+ */
+int t1_init_hw_modules(adapter_t *adapter)
+{
+ int err = -EIO;
+ const struct board_info *bi = board_info(adapter);
+
+ if (!bi->clock_mc4) {
+ u32 val = readl(adapter->regs + A_MC4_CFG);
+
+ writel(val | F_READY | F_MC4_SLOW, adapter->regs + A_MC4_CFG);
+ writel(F_M_BUS_ENABLE | F_TCAM_RESET,
+ adapter->regs + A_MC5_CONFIG);
+ }
+
+ if (adapter->espi && t1_espi_init(adapter->espi, bi->chip_mac,
+ bi->espi_nports))
+ goto out_err;
+
+ t1_tp_reset(adapter, bi->clock_core);
+
+ err = t1_sge_configure(adapter->sge, &adapter->params.sge);
+ if (err)
+ goto out_err;
+
+ err = 0;
+ out_err:
+ return err;
+}
+
+/*
+ * Determine a card's PCI mode.
+ */
+static void __devinit get_pci_mode(adapter_t *adapter, struct chelsio_pci_params *p)
+{
+ static unsigned short speed_map[] = { 33, 66, 100, 133 };
+ u32 pci_mode;
+
+ pci_read_config_dword(adapter->pdev, A_PCICFG_MODE, &pci_mode);
+ p->speed = speed_map[G_PCI_MODE_CLK(pci_mode)];
+ p->width = (pci_mode & F_PCI_MODE_64BIT) ? 64 : 32;
+ p->is_pcix = (pci_mode & F_PCI_MODE_PCIX) != 0;
+}
+
+/*
+ * Release the structures holding the SW per-Terminator-HW-module state.
+ */
+void t1_free_sw_modules(adapter_t *adapter)
+{
+ unsigned int i;
+
+ for_each_port(adapter, i) {
+ struct cmac *mac = adapter->port[i].mac;
+ struct cphy *phy = adapter->port[i].phy;
+
+ if (mac)
+ mac->ops->destroy(mac);
+ if (phy)
+ phy->ops->destroy(phy);
+ }
+
+ if (adapter->sge)
+ t1_sge_destroy(adapter->sge);
+ if (adapter->espi)
+ t1_espi_destroy(adapter->espi);
+}
+
+static void __devinit init_link_config(struct link_config *lc,
+ const struct board_info *bi)
+{
+ lc->supported = bi->caps;
+ lc->requested_speed = lc->speed = SPEED_INVALID;
+ lc->requested_duplex = lc->duplex = DUPLEX_INVALID;
+ lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
+ if (lc->supported & SUPPORTED_Autoneg) {
+ lc->advertising = lc->supported;
+ lc->autoneg = AUTONEG_ENABLE;
+ lc->requested_fc |= PAUSE_AUTONEG;
+ } else {
+ lc->advertising = 0;
+ lc->autoneg = AUTONEG_DISABLE;
+ }
+}
+
+
+/*
+ * Allocate and initialize the data structures that hold the SW state of
+ * the Terminator HW modules.
+ */
+int __devinit t1_init_sw_modules(adapter_t *adapter,
+ const struct board_info *bi)
+{
+ unsigned int i;
+
+ adapter->params.brd_info = bi;
+ adapter->params.nports = bi->port_number;
+ adapter->params.stats_update_period = bi->gmac->stats_update_period;
+
+ adapter->sge = t1_sge_create(adapter, &adapter->params.sge);
+ if (!adapter->sge) {
+ CH_ERR("%s: SGE initialization failed\n",
+ adapter->name);
+ goto error;
+ }
+
+ if (bi->espi_nports && !(adapter->espi = t1_espi_create(adapter))) {
+ CH_ERR("%s: ESPI initialization failed\n",
+ adapter->name);
+ goto error;
+ }
+
+ board_init(adapter, bi);
+ bi->mdio_ops->init(adapter, bi);
+ if (bi->gphy->reset)
+ bi->gphy->reset(adapter);
+ if (bi->gmac->reset)
+ bi->gmac->reset(adapter);
+
+ for_each_port(adapter, i) {
+ u8 hw_addr[6];
+ struct cmac *mac;
+ int phy_addr = bi->mdio_phybaseaddr + i;
+
+ adapter->port[i].phy = bi->gphy->create(adapter, phy_addr,
+ bi->mdio_ops);
+ if (!adapter->port[i].phy) {
+ CH_ERR("%s: PHY %d initialization failed\n",
+ adapter->name, i);
+ goto error;
+ }
+
+ adapter->port[i].mac = mac = bi->gmac->create(adapter, i);
+ if (!mac) {
+ CH_ERR("%s: MAC %d initialization failed\n",
+ adapter->name, i);
+ goto error;
+ }
+
+ /*
+ * Get the port's MAC addresses either from the EEPROM if one
+ * exists or the one hardcoded in the MAC.
+ */
+ if (vpd_macaddress_get(adapter, i, hw_addr)) {
+ CH_ERR("%s: could not read MAC address from VPD ROM\n",
+ adapter->port[i].dev->name);
+ goto error;
+ }
+ memcpy(adapter->port[i].dev->dev_addr, hw_addr, ETH_ALEN);
+ init_link_config(&adapter->port[i].link_config, bi);
+ }
+
+ get_pci_mode(adapter, &adapter->params.pci);
+ t1_interrupts_clear(adapter);
+ return 0;
+
+ error:
+ t1_free_sw_modules(adapter);
+ return -1;
+}
diff --git a/drivers/net/chelsio/suni1x10gexp_regs.h b/drivers/net/chelsio/suni1x10gexp_regs.h
new file mode 100644
index 00000000000..81816c2b708
--- /dev/null
+++ b/drivers/net/chelsio/suni1x10gexp_regs.h
@@ -0,0 +1,213 @@
+/*****************************************************************************
+ * *
+ * File: suni1x10gexp_regs.h *
+ * $Revision: 1.9 $ *
+ * $Date: 2005/06/22 00:17:04 $ *
+ * Description: *
+ * PMC/SIERRA (pm3393) MAC-PHY functionality. *
+ * part of the Chelsio 10Gb Ethernet Driver. *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License, version 2, as *
+ * published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License along *
+ * with this program; if not, write to the Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * http://www.chelsio.com *
+ * *
+ * Maintainers: maintainers@chelsio.com *
+ * *
+ * Authors: PMC/SIERRA *
+ * *
+ * History: *
+ * *
+ ****************************************************************************/
+
+#ifndef _CXGB_SUNI1x10GEXP_REGS_H_
+#define _CXGB_SUNI1x10GEXP_REGS_H_
+
+/******************************************************************************/
+/** S/UNI-1x10GE-XP REGISTER ADDRESS MAP **/
+/******************************************************************************/
+/* Refer to the Register Bit Masks bellow for the naming of each register and */
+/* to the S/UNI-1x10GE-XP Data Sheet for the signification of each bit */
+/******************************************************************************/
+
+#define SUNI1x10GEXP_REG_DEVICE_STATUS 0x0004
+#define SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS 0x000D
+#define SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE 0x000E
+#define SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE 0x0102
+#define SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_STATUS 0x0104
+#define SUNI1x10GEXP_REG_RXXG_CONFIG_1 0x2040
+#define SUNI1x10GEXP_REG_RXXG_CONFIG_3 0x2042
+#define SUNI1x10GEXP_REG_RXXG_INTERRUPT 0x2043
+#define SUNI1x10GEXP_REG_RXXG_MAX_FRAME_LENGTH 0x2045
+#define SUNI1x10GEXP_REG_RXXG_SA_15_0 0x2046
+#define SUNI1x10GEXP_REG_RXXG_SA_31_16 0x2047
+#define SUNI1x10GEXP_REG_RXXG_SA_47_32 0x2048
+#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_LOW 0x204D
+#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_MID 0x204E
+#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_HIGH 0x204F
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW 0x206A
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW 0x206B
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH 0x206C
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH 0x206D
+#define SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0 0x206E
+#define SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2 0x2070
+#define SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE 0x2088
+#define SUNI1x10GEXP_REG_XRF_INTERRUPT_STATUS 0x2089
+#define SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE 0x208B
+#define SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_STATUS 0x208C
+#define SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE 0x20C7
+#define SUNI1x10GEXP_REG_RXOAM_INTERRUPT_STATUS 0x20C8
+#define SUNI1x10GEXP_REG_MSTAT_CONTROL 0x2100
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_0 0x2101
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_1 0x2102
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_2 0x2103
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_3 0x2104
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0 0x2105
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1 0x2106
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2 0x2107
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3 0x2108
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW 0x2110
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW 0x2114
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_4_LOW 0x2120
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_5_LOW 0x2124
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_6_LOW 0x2128
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_8_LOW 0x2130
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_10_LOW 0x2138
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_11_LOW 0x213C
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_12_LOW 0x2140
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_13_LOW 0x2144
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_15_LOW 0x214C
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_16_LOW 0x2150
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_17_LOW 0x2154
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_18_LOW 0x2158
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW 0x2194
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_35_LOW 0x219C
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_36_LOW 0x21A0
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_38_LOW 0x21A8
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_40_LOW 0x21B0
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_42_LOW 0x21B8
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_43_LOW 0x21BC
+#define SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE 0x2209
+#define SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_INTERRUPT 0x220A
+#define SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK 0x2282
+#define SUNI1x10GEXP_REG_PL4ODP_INTERRUPT 0x2283
+#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_STATUS 0x2300
+#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_CHANGE 0x2301
+#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK 0x2302
+#define SUNI1x10GEXP_REG_TXXG_CONFIG_1 0x3040
+#define SUNI1x10GEXP_REG_TXXG_CONFIG_3 0x3042
+#define SUNI1x10GEXP_REG_TXXG_INTERRUPT 0x3043
+#define SUNI1x10GEXP_REG_TXXG_MAX_FRAME_SIZE 0x3045
+#define SUNI1x10GEXP_REG_TXXG_SA_15_0 0x3047
+#define SUNI1x10GEXP_REG_TXXG_SA_31_16 0x3048
+#define SUNI1x10GEXP_REG_TXXG_SA_47_32 0x3049
+#define SUNI1x10GEXP_REG_XTEF_INTERRUPT_STATUS 0x3084
+#define SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE 0x3085
+#define SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE 0x30C6
+#define SUNI1x10GEXP_REG_TXOAM_INTERRUPT_STATUS 0x30C7
+#define SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE 0x320C
+#define SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_INDICATION 0x320D
+#define SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK 0x3282
+#define SUNI1x10GEXP_REG_PL4IDU_INTERRUPT 0x3283
+
+/******************************************************************************/
+/* -- End register offset definitions -- */
+/******************************************************************************/
+
+/******************************************************************************/
+/** SUNI-1x10GE-XP REGISTER BIT MASKS **/
+/******************************************************************************/
+
+/*----------------------------------------------------------------------------
+ * Register 0x0004: S/UNI-1x10GE-XP Device Status
+ * Bit 9 TOP_SXRA_EXPIRED
+ * Bit 8 TOP_MDIO_BUSY
+ * Bit 7 TOP_DTRB
+ * Bit 6 TOP_EXPIRED
+ * Bit 5 TOP_PAUSED
+ * Bit 4 TOP_PL4_ID_DOOL
+ * Bit 3 TOP_PL4_IS_DOOL
+ * Bit 2 TOP_PL4_ID_ROOL
+ * Bit 1 TOP_PL4_IS_ROOL
+ * Bit 0 TOP_PL4_OUT_ROOL
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_TOP_SXRA_EXPIRED 0x0200
+#define SUNI1x10GEXP_BITMSK_TOP_EXPIRED 0x0040
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_ID_DOOL 0x0010
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL 0x0008
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_ID_ROOL 0x0004
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_IS_ROOL 0x0002
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_OUT_ROOL 0x0001
+
+/*----------------------------------------------------------------------------
+ * Register 0x000E:PM3393 Global interrupt enable
+ * Bit 15 TOP_INTE
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_TOP_INTE 0x8000
+
+/*----------------------------------------------------------------------------
+ * Register 0x2040: RXXG Configuration 1
+ * Bit 15 RXXG_RXEN
+ * Bit 14 RXXG_ROCF
+ * Bit 13 RXXG_PAD_STRIP
+ * Bit 10 RXXG_PUREP
+ * Bit 9 RXXG_LONGP
+ * Bit 8 RXXG_PARF
+ * Bit 7 RXXG_FLCHK
+ * Bit 5 RXXG_PASS_CTRL
+ * Bit 3 RXXG_CRC_STRIP
+ * Bit 2-0 RXXG_MIFG
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_RXXG_RXEN 0x8000
+#define SUNI1x10GEXP_BITMSK_RXXG_PUREP 0x0400
+#define SUNI1x10GEXP_BITMSK_RXXG_FLCHK 0x0080
+#define SUNI1x10GEXP_BITMSK_RXXG_CRC_STRIP 0x0008
+
+/*----------------------------------------------------------------------------
+ * Register 0x2070: RXXG Address Filter Control 2
+ * Bit 1 RXXG_PMODE
+ * Bit 0 RXXG_MHASH_EN
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_RXXG_PMODE 0x0002
+#define SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN 0x0001
+
+/*----------------------------------------------------------------------------
+ * Register 0x2100: MSTAT Control
+ * Bit 2 MSTAT_WRITE
+ * Bit 1 MSTAT_CLEAR
+ * Bit 0 MSTAT_SNAP
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_MSTAT_CLEAR 0x0002
+#define SUNI1x10GEXP_BITMSK_MSTAT_SNAP 0x0001
+
+/*----------------------------------------------------------------------------
+ * Register 0x3040: TXXG Configuration Register 1
+ * Bit 15 TXXG_TXEN0
+ * Bit 13 TXXG_HOSTPAUSE
+ * Bit 12-7 TXXG_IPGT
+ * Bit 5 TXXG_32BIT_ALIGN
+ * Bit 4 TXXG_CRCEN
+ * Bit 3 TXXG_FCTX
+ * Bit 2 TXXG_FCRX
+ * Bit 1 TXXG_PADEN
+ * Bit 0 TXXG_SPRE
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_TXXG_TXEN0 0x8000
+#define SUNI1x10GEXP_BITOFF_TXXG_IPGT 7
+#define SUNI1x10GEXP_BITMSK_TXXG_32BIT_ALIGN 0x0020
+#define SUNI1x10GEXP_BITMSK_TXXG_CRCEN 0x0010
+#define SUNI1x10GEXP_BITMSK_TXXG_FCTX 0x0008
+#define SUNI1x10GEXP_BITMSK_TXXG_FCRX 0x0004
+#define SUNI1x10GEXP_BITMSK_TXXG_PADEN 0x0002
+
+#endif /* _CXGB_SUNI1x10GEXP_REGS_H_ */
+
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 499a5325f67..d513c163400 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2145,6 +2145,7 @@
#define PCI_DEVICE_ID_ENE_1225 0x1225
#define PCI_DEVICE_ID_ENE_1410 0x1410
#define PCI_DEVICE_ID_ENE_1420 0x1420
+#define PCI_VENDOR_ID_CHELSIO 0x1425
#define PCI_VENDOR_ID_SYBA 0x1592
#define PCI_DEVICE_ID_SYBA_2P_EPP 0x0782
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 20:08:38 +0000