
                              Release Notes
                       Broadcom BCM5700 Linux Driver
                              Version 8.1.55
                                04/08/2005

                          Broadcom Corporation
                          16215 Alton Parkway,
                          Irvine, CA 92619-7013

                Copyright (c) 2000-2005 Broadcom Corporation
                           All rights reserved


v8.1.55 (April 8, 2005)
========================

  Enhancement: Using the updated GPHY BIAS for 5752.
  ------------
      Change : The code was changed to include a setting to the GPHY
               to ensure a high quality network link over long cable
               lengths. No problems have been reported with the 
               previous GPHY BIAS setting. 

      Impact : 5752 has no noticable impact. 


v8.1.54 (April 8, 2005)
=======================

   Fix:
   ----
     Problem : CQ12639 Latest driver causes panic on DELL 6650.
       Cause : A bug introduced in driver v8.1.50 created a timing 
               window on the 5700 where a releasing spinlock
               was out of sync with the acquiring spinlock.
               This problem was specific to the 5700 and only 
               seen on the 6650 integrated 5700 device.  
      Change : The driver code was changed to ensure the 5700
               spinlock is not released before is is acquired.
      Impact : 5700 only.


 
v8.1.53 (April 6, 2005)
=======================

   Fix:
   ----
   1.Problem : CQ12628 Driver does not compile on Beta SuSE 9.3
      Cause  : A coding bug in the driver code accessed only 
               by kernel versions greater than 2.6.10. This bug
               was introduced in driver v8.1.10.
      Change : This bug was a typo that was corrected. 
      Impact : None.


   2.Problem : CQ12450 bcm5700 does not compile on PPC64 RHEL3 U3.	
      Cause  : Additional Makefile switches were needed to compile on
               the RHEL3 U3 PPC64.
      Change : The Makefile was updated to include a makefile
               switch and an LD line to allow PPC64 compilation on 
               RHEL3 U3 PPC64.             
      Impact : May no longer  build on older PPC64 kernels.


v8.1.52 (April 1, 2005)
============================

   Fix:
   ----
     Problem1: CQ12549 Error 63 getting the ASF configuration table.
      Cause  : The NVRAM was not being read properly.
      Change : The NVRAM access code was changed to properly access
               NVRAM.
      Impact : None.

     Problem2: CQ12467 System hanging after unloading driver.
      Cause  : The driver accessed reserved registers.
      Change : Removed the code that accessed the reserved registers.
      Impact : None. 


v8.1.51 (March 29, 2005)
============================

   Fix:
   ----
     Problem : CQ12549 Error writing to ASF config table in NVRAM.
      Cause  : The 5752 will not allow an NVRAM to write above 64k.
      Change : The reported size of the NVRAM was changed to 64k.
      Impact : None. 

   Removed support for that 5714 ASIC revision. 

v8.1.50 (March 16, 2005)
============================

   Fix:
   ----
      Problem : CQ11136 GPIOs need to be configured to outputs.
       Cause  : 5752 GPIOs default to inputs. 
       Change : Added code to enable GPIO output.
       Impact : None.


   Added support for ASIC revisions 5752, 5714.


v8.1.11 (March 11, 2005)
============================

   Fix:
   ----
      Problem : CQ12400 Removing driver causes a kernel panic
       Cause  : The statistics timer was not being disabled at
				shutdown.
       Change : Disable statistics timer at shutdown.
       Impact : None.


v8.1.10 (March 10, 2005)
============================

   Fix:
   ----
      Problem : CQ12156 ATI transmit timeout-"NETDEV WATCHDOG".
       Cause  : The ATI chipset did not call the driver ISR 
                after the ISR did not service an INTx interrupt.
       Change : The driver will check a register to determine if
                the INTx should be claimed if the status block has
                not been updated on ISR entry.
       Impact : This fix may improve system performance on some
                systems as it reduces the amount of spurious or
                unclaimed interrupts.

  Enhancemnts  
  -----------

   1. Problem : Users want command line parameters.

      Change  :	All the parameters are accessible on the command line.
		The code uses MODULE_PARAM for new kernels. 

   2. Problem : MSI support needs to test for older non-msi supported
		machines running kernels with MSI support enabled. 
      Change  : Added MSI validity test.

   3. Problem : Jumbo frame support on some systems caused device 
		counters to increment CRC errors.
      Change  : Added additional setting to PHY.
      Impact  : None. 

   4. Problem : pci_find_device() will be deprecated.
      Change  : Added pci_dev_present() and pci_get_device() where
		pci_find_device() is.

   5. Change  : Added mmiowb() in tx/rx paths.
 
   6. Change  : Changed makefile for netdump service build to not 
		rely on #define RED_HAT_LINUX_KERNEL.

   7. Change  : Added code to better scale the timer intervals 
		dependent on device.


v8.1.9 (March 1, 2005)
============================

   Support for ASIC revisions 5752, 5714 and 5715 was taken out of 
   the driver.


v8.1.8 (February 28, 2005)
============================
   Fixes:
   ------

   1. Problem : CQ11788 5721 not receiving probes in Intel team.
       Cause  : Statistics do not get updated fast enough.
       Change : Connect the stats_coalesce_ticks module parameter
                to the actual statistics update frequency.
       Impact : System behaves as expected.


   2. Problem : CQ12273 "MODULE_PARM is deprecated" messages are 
                displayed when compiling on Red Hat 4.0. 

        Cause : Drivers using the deprecated macro MODULE_PARM will
                cause compile warnings to be displayed in systems 
                using RedHat 4. The bcm5700 driver was still using 
                the MODULE_PARM as the parameter interface.

       Change : The driver now uses ethtool for passing most parameters.

       Impact : The driver operating in environments with kernel versions
                of 2.6.5 and above requires the use of ethtool to set 
                parameters. When the driver is used with a kernel version
                older than 2.6.5 it will accept all command line parameters.
                
                The only parameters accepted from the command line in
                kernel versions 2.6.5 and later are:

                                            nic_tx_bd
                                            delay_link
                                            disable_d3hot
                                            disable_msi

   3. Problem : CQ12278 Make driver errors on Suse 9.

        Cause : The MODULE_PARAM macro is defined differently in kernel 
                versions below 2.6.10 than they are in the 2.6.10 
                kernel verion. The driver did not account for the 
                different macro definitions and the driver code path 
                was flawed for 2.4.x kernels when declaring 
                MODULE_PARM.

       Change : The driver parameters are declared in three ways and all 
                the original parameters are still used when the driver 
                is operating in systems with kernel versions below 2.6.5. 

       Impact : The driver operating in systems with kernel versions
                of 2.6.5 and above requires the use of ethtool to set 
                parameters. The driver accepts all parameters from
                the command line when running in systems with kernel 
                versions older than 2.6.5.
                
                The only parameters accepted from the command line in
                kernel versions 2.6.5 and later are:

                                            nic_tx_bd
                                            delay_link
                                            disable_d3hot
                                            disable_msi



v8.1.7 (February 25, 2005)
============================
   Fixes:
   ------

   1. Problem : CQ12168 Running ethtool -d <interface> causes
                system to hang or panic.
       Cause  : Driver stores two copies of memory allocated for
                register data.  One copy gets incremented as it
                gets filled.  The other does not.  The driver was
                using the incremented pointer to free the memory
                instead of the non-incremented pointer.
       Change : Pass the original pointer value to kfree().
       Impact : System behaves as expected.

   2. Problem : External loopback test not working with 5752 devices.
       Cause  : 5752 ISR was dereferencing an invalid packet
                descriptor pointer.
       Change : Turn off interrupts when loopback tests are running.
       Impact : System behaves as expected.

   3. Problem : CQ11916 HTLE has intermittent problem passing traffic. 
       Cause  : The HTLE seems to have a problem with low clock speed.
       Change : The driver will not slow the clock down when unloading 
                for HTLE. 
       Impact : None.

   4. Problem : CQ12080 TSO should be disabled by the driver when 
                jumbo frames are used with the 5714.
       Cause  : The driver did not disable TSO when running 
                jumbo frames on the 5714
       Change : Added code to disable TSO when 5714 is running in
                jumbo frame mode.
       Impact : None.

   5. Problem : CQ12209 5714 Fiber would not pass traffic with IPMI
                enabled.
       Cause  : The fiber would not get initialized due to the driver
                using the wrong phy type.
       Change : The driver now checks for the correct phy id when 
                IPMI is loaded.
       Impact : None.

   6. Problem : CQ12166 Running ethtool -t fails register and memory
                tests on 5752.
       Cause  : Test was performing tests for this device.
       Change : Change code to use 5705 register and memory tests.
       Impact : None.



v8.1.6 (February 23, 2005)
============================
   Fixes:
   ------

   1. Problem : CQ12128 5701 locks up system when driver loads.
       Cause  : The driver used the wrong NVRAM access type.
       Change : The driver code was changed to use the correct
                NVRAM type to access the NVRAM.
       Impact : 5701 will not lock up the system.

   2. Problem : CQ12212 Unwanted information is displayed.
       Cause  : The driver displayed debug information.
       Change : The debug information was removed from the driver.
       Imapct : None.


  Enhancements
  ------------

   1. Problem : CQ11650 Driver does not show ASF / IPMI version.
      Change  : Added code to extract ASF / IPMI version info from
                NVRAM.
      Impact  : None.



v8.1.5 (February 18, 2005)
============================

   Fixes:
   -----
    1. Problem : CQ12097 Unable to link with  5714S.
        Cause  : The v8.1.4 driver did not fully support 5714S.
       Change  : Added support for the 5714S.
       Impact  : 5714S is functional w/v8.1.5.


    2. Problem : CQ11807 Driver will not pass traffic with
                 forced speed.
        Cause  : The driver default setting of gigabit mode
                 was interferring with the forced settings.
       Change  : The gigabit mode setting is now cleared until used.
       Impact  : None.


   3. Problem  : CQ12104 VPD Read error on 5714 LOM.
        Cause  : The race condition described CQ11951.
       Change  : Change is described in v8.1.3. and actually
                 fixed in v8.1.3.
       Impact  : None.



v8.1.4 (February 16, 2005)
============================

   Fixes:
   -----
    1. Problem : CQ11918 Customer reported problem with kernel dump.
        Cause  : When the driver was using the NAPI POLL function, it
                 did not have a way for the kernel dump to function.
        Change : The driver NAPI POLL function code was change so that
                 it now will call the driver ISR to allow the kernel
                 dump function to run when the kernel dump feature
                 is enabled in the kernel.
        Impact : None.

    2. Problem : CQ12114 The MSI state machine on the device is not
                 disabled on the in the event that the system
                 call to enable msi fails.
        Change : The driver will disable the MSI state machine
                 when the call to pci_enable_msi() fails.
        Impact : None.




v8.1.3 (February 15, 2005)
============================

   Fixes:
   -----

    1. Problem : (CQ11951) "Failed to access NVRAM" messages are
                 showing up in the message file.
       Cause   : Because EEPROM accesses are much slower than flash
                 accesses, the bootcode can take that much longer to
                 initialize the hardware.  The problem here was that
                 Linux was downloading the LSO firmware to the NIC
                 before the bootcode had a chance to complete it's
                 task.  As a result, the firmware would crash, while
                 still holding the NVRAM lock.
       Change  : Acquire the NVRAM lock before halting the CPU and
                 downloading the LSO firmware.
       Impact  : None.

    2. Problem : (CQ12096) MODULE_PARM deprecated warnings.
       Cause   : Linux is moving to a new module parameter declaration
                 format.  The kernel has deprecated the older
                 parameter declaration style.
       Change  : For those module parameters that do not have a
                 configuration tool equivalent, the parameter
                 declarations have been converted to the new style.
                 All other module parameters have been dropped in
                 favor of their configuration tool equivalents.
       Impact  : None.


   Enhancements:
   -------------

   1. Problem : (CQ10408) Driver does not issue a "Link is DOWN"
                message when bringing the interface down.
      Change  : Issue a "Link down" message upon device closure.
      Impact  : None.

   2. Problem : (CQ10828) The driver needs a way to isolate
                loopback testing.
      Change  : Added a NICE command to invoke loopback tests.
      Impact  : None.

   3. Problem : CQ12159 Older silicon has memory location 0xd38 uninitialized
                and bits 17,18 may be set which causes the capacitive
                coupling and pre-emphasis settings to be enabled by mistake.
      Change  : Validate memory location 0xd38 before using it.
                The patch is similiar to a patch done in tg3.
      Impact  : none.

   4. Problem : Added changed asic revs for 5714 family.



v8.1.2 (February 1, 2005)
============================
   Fixes:
   -----

   1. Problem : (CQ12046)Does not compile on some supported distrobutions.
       Cause  : The disable_msi switch was declared but then used within
                #defines
       Change : The disable_msi switch is declared within the same defines
                as where it is used.

   Impact: None.

   2. Problem: (CQ12045)Unable to pass traffic on the 5714.
      Cause  : The disable_msi switch seems to have caused compile problems.
      Change : The above change resolves this problem too.

   Impact: None.

   Enhancment: Added support for the 5751_C0.


v8.1.1 (February 1, 2005)
============================
   Enhancements:
   ------------
   Change: MAC address is read from NVRAM on 5714s for now.

   Impact: None.


v8.1.0.5 (January 28, 2005)
============================
   Enhancement:
   ------------
   Change: Jumbo frames are supported on the 5714.
           msi is supported on the 5714
           NVRAM support code was enhanced.

   Impact: None.

   Note: This is a preliminary driver for internal testing only.


8.1.0.4.msi (January 1, 2005)
============================
   Enhancement:
   ------------
   Change: Additional tweeking to support 5752 & 5714/5715 including:
           -msi is enabled for 5752 only.
           -detection of 5752 & 5714 is fixed.

   Impact: None.

   Note: This is still a preliminary driver release for internal
         testing only.



v8.1.0.2 (December 16, 2004)
============================
   Enhancement:
   ------------
   Change: PCI IDs were added to support the 5752

   Impact: None.

   Note: This is a very preliminary and internal release for internal
         testing only.



v8.1.0.1 (December 14, 2004)
============================
   Enhancement:
   ------------
   Change: PCI IDs were added to support the 5714 and 1515.

   Impact: None.

   Note: This is an alpha release for support of the 5714 & 5715


v7.4.10 (December 3, 2004)
=========================

   1. Problem : (CQ11042)ASF IP Monitoring cannot update config table.

      Cause   : The NVRAM on 5750 LOM systems could not be written as
                the NVRAM write protection was not being cleared by
                the driver.

      Change  : The driver now  correctly uses the write protection
                capabilities of the 5750 LOM NVRAM. 

      Impact  : The driver can write to the NVRAM for 5750 LOMs.



v7.4.9 (December 1, 2004)
=========================

   1. Problem : EEPROM_ExecuteCommand warnings showing up on the console.

      Cause   : Code incorrectly uses old EEPROM routines.

      Change  : Use new nvram routines when available.

      Impact  : Flash works as expected.

   2. Problem : (CQ11472)Add PLL workaround.

      Cause   : Occasionally a problem occurs when the device is put
                into D3 cold. The problem can result in a chip lockup.
                This only occurs on 5750 AX/BX chips.

      Change  : Added the workaroud to code, which is to keep the
                power clks ticking when transitioning to d3 cold/hot.

      Impact  : D3 transition is robust.


v7.4.8 (November 24, 2004)
=========================

   1. Problem : Vpd cannot be read on 5704 and other legacy devices.

      Cause   : Code incorrectly identifies flash type.

      Change  : Ignore bits 24 and 25 on Config1 for legacy devices.

      Impact  : Flash works as expected.


   2. Problem : (CQ11402) Driver crashes while obtaining chip size on 5701.

      Cause   : Code uses incorrect read routine.  Chipsize was not
                initialized which caused a divide by zero.

      Change  : Change code to use correct read routine.  Made sure
                to set the chipsize to a valid chipsize (nonzero)
                before calling the read routine.

      Impact  : EEPROM works as expected.


   3. Problem : Firmware version not correct for 5721 devices.

      Cause   : Offset calculation error for Atmel parts.

      Change  : Fix calculation error.

      Impact  : Firmware version correct.


v7.4.7 (November 18, 2004)
=========================

   1. Problem : Firmware version not displaying on BCM5753 devices.

      Cause   : Reads being performed before the NVRAM is locked.

      Change  : Lock the NVRAM before performing any reads.

      Impact  : None.


   2. Problem : (CQ11142) OOPS occuring on PPC750

      Cause   : Statistic and status memory pointers were initialized
                even after driver shutdown and memory deallocation
                causing OOPS to occur when statistics were probed.

      Change  : Reset pointers to zero after shutdown.

      Impact  : None.


   3. Problem : (CQ11115) Driver allows for invalid user adminstered
                MAC address.

      Cause   : Driver did not check for valid address.

      Change  : Driver checks for valid MAC address.

      Impact  : None.


   4. Problem : (CQ10598) Driver occasionally cannot get link on certain
                machines.

      Cause   : The certain machines had interrupt sharing between many
                devices and occasionally the driver would lose the
                link change interrupt.

      Change  : The ISR was modified to ensure the interrupt being cleared
		has been serviced properly.

      Impact  : None.
   

   5. Problem : (CQ11117) Need SERDES pre-emphasis support.

        Cause : Certain 5704 designs have requested that certain bits be
                set in SERDES configuration registers.

       Change : Changes made use presupplied value for SERDES configuration.
                
       Impact : None.


  Enhancement :
  -------------

   1. Change  : GPIO2 will not have an output for the 5753 family.

   2. Change  : Added code to support more flash (and EEPROM) types.
                The flash write code has been separated into buffered
                and unbuffered versions.  The flash and EEPROM read
                code has been modified to support sub-32bit word reads.
                New nvram sizing functions have been introduced.


v7.4.6 (October 25, 2004)
=========================

   1. Problem : (CQ11088) Remove the ability to set speed & duplex on the 150T

       Cause  : The switch on the 150T nic is set to autoneg. The line speed
                on the 5705 should only be set to auto for proper link to
                be established with the internal switch.

      Change  : Added code in b57um.c line 4316 to check for this nic and
                always set it to auto.

      Impact  : None.


   2. Problem : (CQ11102) NMI occurs during load/unload w/ASF enabled.

       Cause  : The 5753 drove GPIO2 as an output, which did not allow
                ASF to use it to sense main power properly.

      Change  : The driver does not driver GPIO2.

      Impact  : None.


v7.4.5 (October 11, 2004)
========================
   Enhancement:
   ------------
   Change: PCI IDs were added to support the 5753, 5753M, 5753F and 5789.

   Impact: None.


v7.4.4 (October 4, 2004)
=======================

   1. Problem : (CQ10955) DELL 6650 kernel panic during negotiation
		using 5700 lom.

       Cause  : Spinlock deadlock during reset & link up.

      Change  : Removed the spinlock contention.

      Impact  : None.


   2. Problem : (CQ10436)Man page needs update.

       Cause  : bcm5700.ko was not noted in man page.

      Change  : Modified man page.

      Impact  : None.


   3. Problem : (CQ10396) Cannot ping when Dell PowerEdge 6650(#459) 
                is configured for 10half forced.

      Cause   : 5411 PHY does not require a PHY reset before being set
                up to 10 half, or a PHY reset was being called without
                sufficient delay before the PHY was being set up.
                
                The code in LM_ResetAdapter()calls 
                LM_ResetPhy()(on line 3479 in tigon3.c) immediately before
                calling LM_SetupPhy().
                If a 2 second delay is placed between these two functions,
                then 10half forced will function, or when LM_ResetPhy() 
                is removed, 10half forced will again function. 
                
                It is not clear why This delay is needed or why 
                LM_ResetPhy()is needed here as the MII control reg shows
                the same values for a successful or failed case.
                LM_ResetPhy() is not called for the 5401 PHY for the 
                same reason this problem occurs. 
                A request for assistance was emailed to HWEng  with no
                response.

      Change  : Removed unnecessary PHY reset for 5411 PHY.

      Impact  : Forcing 5411 PHY to 10 half will function as expected. 



v7.4.3 (August 26, 2004)
======================
   Fixes:
   ------
   1. Problem : (CQ10437) Driver is installed in a directory other
                than the directory noted in the README.TXT file.

       Cause  : Note omission.

       Change : Added a line in the README.TXT file diclosing an
                alternative install directory
                (/lib/modules/<kernel_version>/kernel/drivers/net/bcm/)
                for SLES9 installations.

       Impact : Problem resolved.

   2. Problem : (CQ10396) Cannot ping when Dell PowerEdge 6650(#459) 
                is configured for 10half forced.

      Cause   : 5411 PHY does not require a PHY reset before being 
                forced to 10 half.

      Change  : Removed unnecessary PHY reset for 5411 PHY.

      Impact  : Forcing 5411 PHY to 10 half will function as expected. 


   3. Problem : (CQ10540)Max value for "stats_coalesce_ticks" is
                rejected in 2.6 kernels.

       Cause  : 2.6 kernels are using a different parameter interface
                that limits the value range. 

       Change : README.TXT was changed to inform the user that the 
                value range for this parameter may very by kernel version. 

      Impact  : None.


   4. Problem : (CQ9804)5751 freezes in certain platforms under heavy
                stress.

       Cause  : A logic bug in clearing interrupts caused this to occur.
                See previous entry for CQ9804. 

      Change  : Setting Bit 29 in 0x7c00 (TLP control reg) prevents  
		the lock-up from occurring and was set as a safeguard.
                
       Impact : None.

   
   Enhancement: (CQ10355) Ethtool -i shows no value for "firmware-version"
   ------------
      Change  : Added bootcode version value to Ethtool driver info structure. 

      Impact  : None.




v7.4.2 (July 29, 2004)
======================
   Fixes:
   ------
   1. Problem:(CQ10695) System screen froze after third port.

       Cause: Third port was pci and driver was treating it 
	      as a pciexpress. Bug introduced v7.4.1.

       Change:Driver checks for PCIE or PCI and then executes
	      PCIE code only on PCIE adapter. 

       Impact:Problem resolved.

   2. Problem:(CQ10627)Remove 5751-A0 support.

       Cause: 5751-A0 is not shipping.

       Change:Driver checks for 5751 A0 then fails if found. 

       Impact:Driver will not load on 5751-A0

 
v7.4.1 (July 27, 2004)
======================
   Fixes:
   ------
   1. Problem:(CQ10602) FSC 1899 system may freeze/reboot when bringing the
		initerface up/down with ASF enabled.

      Cause:  Handshake between ASF & driver disrupted by 7.4.0 extra
	      delay, allowing the driver to enable D3 state before ASF
	      was ready.

      Change: Delay was moved to immediately before enabling D3.

      Impact: Driver will not freeze or reboot system.

   2. Problem:(CQ10481)Driver displays gigabit speed on adapter
	      that only supports 10/100.
     
      Cause:  The Driver displayed support for 10/100/1000 link 
              do to an error in the code. 

      Change: Code changed to display correct link support 
	      values.

      Impact: Driver displays correct supported link speeds.


v7.4.0 (July 12, 2004)
======================
   Enhancement:
   ------------
   Change: Added extra delay after GRC reset to make the
           firmware D3hot workaround in 3.29i effective.

   Impact: None.

   Fixes:
   ------
   1. Problem: (CQ10549) "BCM_DRV: command not found" when compiling
               the source RPM.

      Cause: $(BCM_DRV) not substituted properly.

      Change: Changed all $(BCM_DRV) to $BCM_DRV in bcm5700.spec.

      Impact: None.

   2. Problem: (CQ10468) Driver not working properly in bridging environment
               after changing mtu.

      Cause: Promiscuous mode not preserved after changing mtu.

      Change: Fixed by setting the rx mode after mtu change.

      Impact: None.

   3. Problem: (CQ10557) Kernel panics with 17 or more devices installed.

      Cause: Driver parameters checking logic assumes maximum of 16
             devices.

      Change: Added logic to skip parameter processing if the device
              index is higher than or equal to 16.

      Impact: This will prevent the kernel panic and the driver will load with
              any number of devices in the system. Driver parameters will
              only work for the first 16 devices.

   4. Problem: Changing mtu may cause the kernel to print a warning message:
               sleeping function called from invalid context at mm/slab.c.

      Cause: Calling kmalloc with GFP_KERNEL from invalid context.

      Change: Changed to GFP_ATOMIC.

      Impact: None.

v7.3.5 (June 23, 2004)
======================
   Fixes:
   ------
   1. Problem: (CQ10407) Linux 2.6 kernel fails to get IP address using DHCP
               on 5751 A1.

      Cause: When DHCP fails, ifup script will shutdown the NIC and it
             will go to D3hot state. On 2.6 kernels, the config write
             to put device in D3hot will be written using mmconfig with
             a mmconfig read of register 0 to flush the write. The
             read immediately following the write when the device is
             transitioning to L1 link state may cause problems. The symptom
             is that the device will lose the memory space bit in the
             PCI command register. When ifup brings up the NIC again
             to retry DHCP, the device will not be functional.

     Change: The fix for the problem is in bootcode 3.29 which will
             greatly reduce if not eliminate this problem from happening.
             To further reduce the risk, 2 changes were made to the driver.
             1. Add a parameter to disable D3hot (disable_d3hot).
             2. Check PCI command register and re-enable the memory space
                and other bits multiple times until the bits are set
                or up to a maximum during driver init.

      Impact: None.
           
v7.3.4 (June 18, 2004)
======================
   Fixes:
   ------
   1. Problem: (CQ10312) System Hangs when loading and unloading the driver
               continuously with 5705.

      Cause: Hang was caused by infinite retry soon after writing to register
             0x74 to speed up the core clock.

      Change: Implemented a 2-step sequence to speed up the core clock on
              5705 and shasta devices.

      Impact: None.

   2. Problem: System crashes occasionally when loading and unloading the
               driver.

      Cause: System may be unable to map memory.

      Change: Added error check on memory mapping and gracefully fail
              the driver load.

      Impact: None.

   3. Problem: (CQ10364) System hangs when issuing reset from b57ldiag.

      Cause: Deadlock when trying to get a spinlock.

      Change: Removed the deadlock.

      Impact: None.

   4. Problem: (CQ10379) Driver allows jumbo frames on 5751/5721 devices
               using ifconfig.

      Cause: Missing validity check for mtu on shasta devices.

      Change: Added checks.

      Impact: None.

   5. Problem: (CQ#10110) ethtool -d still hangs on some systems.

      Cause: Chip does not respond to reserved registers, causing
             some machines to hang.

      Change: More changes to only dump the valid registers in the
              memory space.

      Impact: None.

   Enhancements:
   -------------
   1. Change: Added Capacitive coupling phy support.

v7.3.3 (June 03, 2004)
======================
   Enhancements:
   -------------
   1. Change: Added support for 5789.

   Fixes:
   ------
   1. Problem: 5704 may run on Vaux during normal operations.

      Cause: Depending on the sequence of shutdown, the first port
             of a 5704 may be brought up and run on Vaux due to
             a programming error.

      Change: Corrected the GPIO programming sequence to take
              both ports of the 5704 into account.

      Impact: None.

   2. Problem: NC150T not identified.

      Change: Added OEM string.

      Impact: None.

   3. Problem: (CQ #10340) NC1020 identified as NC7722.

      Cause: String not updated.

      Change: Updated OEM string.

      Impact: None.

v7.3.2 (June 03, 2004)
======================
   Enhancements:
   -------------
   1. Change: Added support for 5751F.

   Fixes:
   ------
   1. Problem: (CQ #10145) IBM PPC64 PBlade crashes after many hours.

      Cause: Speculative execution path reading an old descriptor, causing
             the wrong buffer to be freed.

      Change: Added read memory barriers to prevent this.

      Impact: None

   2. Problem: 5701 does not link up intermittently.

      Cause: Concurrent register writes when adding multicast address and
             sevicing link change interrupt. This is a chip bug.

      Change: Added locking to prevent this one case of concurrent register
              access.

      Impact: None.

v7.3.1 (May 27, 2004)
=====================
   Fixes:
   ------
   1. Change: Added workaround for 5750 A3 to disable the CPU after
              reset.

      Impact: None.

v7.3.0 (May 21, 2004)
=====================
   Enhancements:
   -------------
   1. Change: Added support for 5751M devices.

   Fixes:
   ------
   1. Problem: (CQ#10109) CIOBE hangs machine after many hours of heavy traffic.

      Cause: New hw errata on 5704 PCIX multi-split mode.

      Change: Disabled multi-split on CIOBE.

      Impact: None.

   2. Problem: (CQ#10110) ethtool -d hangs on some systems.

      Cause: Chip does not respond to reserved registers, causing
             some machines to hang.

      Change: Changed code to only dump the valis registers in the
              memory space.

      Impact: None.

   3. Problem: Driver contains unresolved genapic symbol when compiled
               on some kernels.

      Cause: genapic may be referenced by hard_smp_processor_id.

      Change: Removed hard_smp_processor_id which is purely for
              debugging and not needed.

      Impact: None.

   3. Problem: (CQ#9959) ethtool returns wrong flow control settings.

      Cause: Minor bug.

      Impact: None.

v7.2.24 (April 23, 2004)
========================
   Enhancements:
   -------------
   1. Change: (CQ #9955) Remove support for 5751M devices.

      Impact: None.

   2. Change: Added support for cache line aligned write DMA on PPC64.
              This feature is only supported on 5700/5701.

      Impact: None.

   Fixes:
   ------
   1. Problem: ASF doesn't run properly after ifdown on 5750 chips.

      Cause: Driver sets device to run on slow core clock during
             shutdown. ASF cannot run on slow clock.

      Change: Added check to skip slowing the core clock if ASF
              is running on 5750 chips.

      Impact: None.

   2. Problem: TSO doesn't work on non-x86 architectures.

      Cause: U32 misdefined.

      Impact: None.

v7.2.23 (April 19, 2004)
========================
   Fixes:
   ------
   1. Problem: (CQ #9782) ethtool link test fails on 5703 intermittently.

      Cause: Not waiting long enough for link up.

      Change: Added 3 more seconds if copper link is still down.

      Impact: None.

   Enhancements:
   -------------
   1. Change: Added PHY workaround for 5705/5750 to improve bit error rate.

      Impact: None.

v7.2.22 (April 14, 2004)
========================
   Fixes:
   ------
   1. Problem: (CQ #9804) PCIE system freezes under heavy stress.

      Cause: 2 problems - 1. Logic in poll routine prematurely clears
             the next interrupt, causing tx timeout. 2. Bug in reset
             logic causing hang.

      Change: Made changes to the logic that reenables rx interrupt
              in the poll routine. Fixed the tx timeout reset routine.

      Impact: None.

   2. Problem: (CQ #9836) 5700 LOMs not recognising link down.

      Cause: 5700 in 66 MHz or higher bus speeds will go through
             chip reset instead of the normal link down interrupt
             when link goes down at gigabit link speed. There is
             a bug in the reset logic that causes the link down
             event to be unreported.

      Change: Simple change in the reset logic.

      Impact: None.


v7.2.21 (April 08, 2004)
=======================
   Fixes:
   ------
   1. Problem: (CQ #9645) Unable to pass traffic on 5701 with long cable.

      Cause: Phy register 0x18 shadow 0 not set correctly.

      Change: Changed the code to do read-modify-write on that register
              to preserve the contents of that register.

      Impact: None.

v7.2.20 (Mar. 31, 2004)
=======================
   Fixes:
   ------
   1. Problem: Poor performance in NAPI mode in certain test cases.

      Cause: Stale packets not processed by the driver after polling
             completes. This is caused by rx interrupt being
             enabled right after a new status block is already
             initiated and pending DMA.

      Change: Implemented a new scheme to detect possible missed
              packets after rx interrupt is enabled. Also set
              the "during-int" coalescing parameters to be the
              same as the normal coalescing parameters.

      Impact: None.

   2. Problem: Driver unable to identify the PHY intermittently.

      Cause: In some cases, both boot code and driver
             cannot read the proper PHY ID from the PHY. Driver
             relies on either the PHY ID read by boot code or
             directly read from the PHY register to idendify the PHY.

      Change: Changed the PHY detection logic to make it more
              robust by doing PHY reset when boot code and PHY
              registers return invalid PHY ID.

      Impact: None.

   3. Problem: LEDs not working perfectly on shasta devices.

      Cause: Some new shasta LED modes require driver to update
             register 0x450.

      Change: Added necessary code to update register 0x450.
              Also changed driver to program register 0x40c
              instead of relying on boot code to program it.

      Impact: None.

   3. Problem: Driver does not compile on kernels not supporting
               NAPI.

      Cause: Minor syntax error.

   Enhancements:
   -------------
   1. Change: Added a new OEM ID and string.

v7.2.19 (Mar. 11, 2004)
=======================
   Fixes:
   ------
   1. Problem: (CQ9188) Gigabit link light still does not work on 5751.

      Cause: bug in implementation.

      Change: Cleaned up the LED code in the driver and let the
              bootcode program the LEDs on shasta (575x/572x) devices.

      Impact: None.

   2. Problem: CRC errors reported on 5700 using 5411 PHYs.

      Cause: PHY register 0x18 shadow register 0 not programmed
             correctly.

      Change: Fixed code to use the same setting as 5401.

      Impact: None.

   3. Change: Enabled hw bug fix for 5703/04 PCI-X write DMA bug.

      Impact: None.

   4. Problem: ethtool -t fails nvram test in big endian systems.

      Cause: Endian bug in calculating CRC in nvram.

      Change: Simple fix by swapping data.

      Impact: None.

   Enhancements:
   -------------
   1. Change: (CQ8586) Added some missing stats counters to
              ETHTOOL_GSTATS

      Impact: None

v7.2.18 (Feb. 24, 2004)
=======================
   Fixes:
   ------
   1. Change: Changed driver for 5751 A1 by disabling PCIE reset
              during GRC reset.

      Impact: None.

   2. Change: Changed driver for 5751 A1 by enabing PCIE data
              fifo bug fix in the chip.

      Impact: None.

v7.2.16 (Feb. 20, 2004)
=======================
   Fixes:
   ------
   1. Problem: (CQ9188) Gigabit link light does not work on 5751.

      Cause: Driver did not support the new shasta LED modes.

      Change: Added support for the new shasta LED modes.

      Impact: None.

   2. Problem: (CQ9418) 5700 NIC fails to pass traffic at 10Mbps
               half duplex when connected to a switch port forced
               to the same speed setting.

      Cause: The 5401 PHY requires a long delay after PHY reset
             before the PHY can be confiured.

      Change: Changed code to skip PHY reset if it is 5401.

      Impact: None.

   3. Problem: (CQ9430) RPM build errors occur on 2.6.x kernels.

      Cause: spec file was not handling 2.6 kernels with the new
             kernel build mechanism properly.

      Change: Modified the spec file.

      Impact: None.

   4. Problem: (CQ9410 & CQ9393) Delayed link report to MII and
               ETHTOOL ioctls causing problems.

      Cause: Workaround for ifup problem (see v6.2.11, CQ7791 bug
             fix descript for details) causing problems in
             other applications that require accurate link information.

      Change: Changed driver so that the delayed link workaround is
              enabled using a delay_link driver parameter. The parameter
              is disabled be default.

      Impact: ifup may not be able to obtain IP address using DHCP.
              Use the delay_link parameter or modify the ifup script
              to increase the wait time for link up.

v7.2.15 (Feb. 12, 2004)
=======================
   Enhancement:
   ------------
   1. Change:  Added diagnostics functions to support ethtool -t.

      Impact: None.

v7.2.12 (Feb. 05, 2004)
=======================
   Fixes:
   ------
   1. Problem: Tx timeout reset may crash when hardware is unreliable.

      Cause: Reset routine relies on a valid rx consumer index in status
             block to free the rx buffers. (related to problem #1
             fixed in 7.2.10)

      Change: Changed logic to not rely on the hw rx consumer index.

      Impact: None.

   2. Problem: Driver not running in NAPI mode

      Cause: see Problem #1 fixed in 7.2.10.

      Change: Fixed NAPI code so that it will also run in single-threaded
              mode.
      Impact: None.

   3. Problem: (CQ 9293) Driver hangs intermittently during ifdown.

      Cause: Writing to Nic's memory when memory arbiter is disabled.

      Change: Changed code to write firmware mailbox signatures before
              memory arbiter is disabled.

      Impact: None.

   4. Problem: PHY's extended packet length bit not set when using
               jumbo frames.

      Change: Added change to always set this bit on NICs that
              support jumbo frames.

      Impact: None, but testing required.

   5. Problem: Posted writes not flushed before delay loop, causing
               the delay to be less than intended in duration.

      Change: Added register read back to flush the writes before delay
              loop, where appropriate.

      Impact: None.

   6. Problem: (CQ 9263) ethtool -a returning wrong autonegotiation
                status.

      Cause: Minor bug.

      Change: Minor change.

      Impact: None.

   Enhancement:
   ------------
   1. Change: Implemented TSO for 5788 and changed name to NetLink

      Impact: None.

v7.2.11 (Jan. 21, 2004)
=======================
   Fixes:
   ------
   1. Problem: (CQ#9207) ASF does not work when driver is loaded on 5751.

      Cause:  Driver/ASF handshake problem caused by a long delay after
              GRC reset.

      Change: Added the new Driver/ASF handshake mechanism.

      Impact: None.

   2. Problem: (CQ#9179) Driver allows jumbo frames on 575x.

      Change: Minor change to disallow setting jumbo frames on 575x.

      Impact: None.

v7.2.10 (Jan. 13, 2004)
=======================
   Fixes:
   ------
   1. Problem: (CQ#9181) Panic on IBM PCIE system running chariot.

      Cause: The panic was caused by a problem in the tx timeout
             reset logic that assumed a good rx BD consumer index
             can always be read from the chip during reset. When
             something is wrong with the chip and a bogus rx BD
             consumer is read, the system panics when trying to
             recycle a wrong BD.

             The tx timeout itself was caused by buggy single-threaded
             workaround code and register read back code originally
             implemented for the 5700 and 5701.

      Change: Fixed the single-threaded and register read back
              workaround. The fix was implemented for non-NAPI
              mode only as the fix for NAPI will take more time.
              The driver will only run in non-NAPI mode.

      Impact: Minor.

   2. Problem: ASF does not run on 5751.

      Cause: FTQ reset after chip reset.

      Change: Removed FTQ reset.

      Impact: Should be none, but need to be tested on all 570x chips.

   3. Problem: (CQ#9170) NMI occurs intermittently when doing ifconfig down.

      Cause: HW bug when programming 5751 to low power mode.

      Change: Removed low power mode setting for 5751.

      Impact: Wol will not work on 5751.

   4. Change: Changed delay after GRC reset to 500 msec.

   5. Change: Changed shasta_smp_fix to 1 (enabled) be default.

v7.2.9 (Jan. 09, 2004)
======================
   Enhancements:
   -------------
   1. Change: Added parameter shasta_smp_fix to enable/disable
              SMP workaround (see fix #2 in v7.2.8). Default
              is workaround disabled.

      Impact: None.

v7.2.8 (Jan. 05, 2004)
======================
   Fixes:
   ------
   1. Problem: (CQ#9096) Data corruption with large ping packets.

      Cause: Mbuf pool start and length registers overwritten by
             driver.

      Change: Fixed code so that the 2 mbuf registers will not be
              overwritten for the 5750.

      Impact: None.

   2. Change: Added register read back and single-threaded workaround
              for 5750 PCIE.

      Impact: Lower performance.

v7.2.7 (Dec. 24, 2003)
======================
   Fixes:
   ------
   1. Change: Changed delay to 300msec after GRC reset for 5751/5721 A0 PCI
              Express devices.

      Impact: None.

v7.2.6 (Dec. 10, 2003)
======================
   Fixes:
   ------
   1. Problem: Driver does not receive interrupts on some PCI
               Express systems.

      Cause: A register bit could not be set using config. cycles.

      Change: Changed to memory write cycle to write the register.

      Impact: None.

v7.2.5 (Dec. 02, 2003)
======================
   Fixes:
   ------
   1. Problem: Driver crashes during transmit timeout reset.

      Cause: Driver was calling schedule_timeout which is a
             blocking function and cannot be called in interrupt
             context.

      Change: Changed to udelay.

      Impact: None.

v7.2.4 (Nov. 24, 2003)
======================
   Fixes:
   ------
   1. Problem: (CQ #8908) System freezes when 5751 PCI Express device 
               is brought up.

      Cause: PCI Express device was not detected properly.

      Change: Corrected the PCI Express detection logic.

      Impact: None.

   2. Problem: (CQ #8910) PCI_Bus_Speed is misreported for PCI Express
               device.

      Cause: Old logic did not take PCI Express into account.

      Change: Made simple change to account for PCI Express device.

      Impact: None.

v7.2.1 (Nov. 18, 2003)
======================

   Enhancements:
   -------------
   1. Change: Made some changes to make 5751 work on PCIE 1.0 systems.

v7.2.0 (Nov. 17, 2003)
======================

   Enhancements:
   -------------
   1. Change: Added support for 575x and 572x PCI and PCIE chips.

v7.1.21 (Jan. 05, 2004)
=======================
   Fixes:
   ------
   1. Problem: ASF stops working after driver is loaded if PXE ran
               and did not shutdown properly.

      Cause: The wait time to gain NVRAM arbitration was not long
             enough in 5704 using serial eprom. As a result, a
             reset can happen to one channel of a 5704 while
             the other channel is still loading boot code. This
             will cause ASF to subsequently hang waiting forever
             for NVRAM arbitration.

      Change: Changed the wait time to cover the worst case
              serial eprom boot code load time plus a safety margin.

      Impact: None.

   2. Problem: (CQ#8890) Receive errors on 5700 NICs.

      Cause: Incorrect PHY settings on the 5401 introduced in 6.2.18
             when PHY loopback was implemented.

      Change: Fixed the PHY settings.

      Impact: None.

   3. Problem: Driver does not compile on some 2.4 kernels.

      Cause: Driver not compatible with some older ethtool.h files.

      Change: Added #ifdef to fix the problem.

      Impact: None.

v7.1.20 (Dec. 24, 2003)
======================

   Fixes:
   ------
   1. Problem: ASF stops working after driver is loaded if PXE is enabled.

      Cause: The fix for the PXE problem in version 7.1.18 (fix #3, see below)
             has a flaw that causes reset to always occur if PXE is enabled.
             This reset causes ASF to stop functioning.

      Change: Fixed the flawed logic.

      Imapct: None.
             
v7.1.19 (Dec. 10, 2003)
======================

   Fixes:
   ------
   1. Problem: (CQ #8961) Interrupt test fails intermitently.

      Cause: A race condition between the ioctl and interrupt
             service routine can cause the interrupt test to fail.

      Change: Added code to regenerate the interrupt in the loop
              that waits for interrupt to complete.

      Impact: None.

   Enhancements:
   -------------
   1. Change: Changed Makefile to use ppc64 compiler and linker
              if compiling on ppc64 environment.
   
      Impact: None.

v7.1.18 (Nov. 21, 2003)
======================

   Fixes:
   ------
   1. Problem: IPMI firmware receiving VLAN tagged packets stops working
               after ifconfig up.

      Cause: Driver sets NIC to keep VLAN tags by default.

      Change: Added code and driver parameter vlan_tag_mode to control whether
              VLAN tags will be stripped or not. By default, the driver will
              always strip VLAN tags if ASF/IPMI firmware is enabled.

      Imapct: If ASF is enabled, the NIC may not work properly when VLAN
              and bonding are used together. Sniffer applications that
              wants to receive raw VLAN-tagged frames will also be affected.

   2. Problem: IPMI firmware stops working after ifconfig up on PPC64 machine.

      Cause: Timing differences on PPC cause the driver to reset a certain
             chip block after firmware has enabled it. Timing difference
             is due to very slow config cycles on the PPC.

      Change: Rearranged some code in LM_ResetAdapter to get around the problem.

      Impact: None.

   3. Problem: Driver does not load if PXE ran previously and did not shutdown
               the chip.

      Cause: Driver does not work properly as it expects the chip to be
             disabled during reset.

      Change: Added code to check if the chip is enabled and reset it
              if necessary before setup.

      Imapct: None.

   4. Problem: Driver takes a long time to reset if the bootcode is
               disabled on the PPC.

      Cause: Config cycles are very slow on the PPC and the loop
             to check for the firmware signature is too tight. 

      Change: Loosened the loop to check for the firmeare signature
              after reset. Also made the maximum loop count smaller
              if it is using flash NVRAM.

      Imapct: None.

   Enhancements:
   -------------
   1. Change: Added ETHTOOL_GRINGPARAM ioctl

      Imapct: None.

   2. Change: Added PPC64 specific compile switches in Makefile to allow
              the driver to be compiled as a standalone module.

      Imapct: None.

v7.1.11 (Nov. 05, 2003)
======================

   Fixes:
   ------
   1. Problem: Running b57ldiag on PPC system crashes after a while.

      Cause: PCI addresses not properly unmapped during diagnostics
             suspend operation.

      Change: Added code to unmap PCI addresses in rx buffers during
              suspend.

      Impact: None.

   Enhancements:
   -------------
   1. Problem: Driver doesn't load on SerDes and 5704 devices when
               the NVRAM is blank or corrupted. Driver needs to load
               to support diagnostics.

      Cause: 5704 NVRAM cannot be reliably accessed when boot code is
             not running, so driver cannot get proper MAC address
             and proper PHY ID.

      Change: Changed code to allow driver to load with warnings when
              even when NVRAM cannot be accessed.

      Impact: When boot code is blank, driver will load with a bogus
              MAC address.

   2. Problem: Driver cannot reliably read/write NVRAM when NVRAM
               is corrupted or blank.

      Cause: When bootcode is not running, the NVRAM interface state
             machines will get locked up.

      Change: Added code to reset the NVRAM interfaces of both
              ports in 5704.

      Impact: None.

   3. Change: Added ioctl to get and clear statistics block.

      Impact: None.

v7.1.9 (Nov. 03, 2003)
======================

   Fixes:
   ------
   1. Problem: Driver does not load on 5704S devices if the eeprom is
               blank.

      Cause: 5704S defaults to an unsupported device ID when eeprom
             is blank.

      Change: Added the default 5704S device ID.

      Impact: None.


v7.1.8 (Oct. 31, 2003)
======================

   Fixes:
   ------
   1. Problem: ASF/IPMI stops passing traffic after driver is loaded.

      Cause: GRC mode control register overwritten when driver loads.

      Change: Changed driver to preserve the relevant bit in the GRC
              mode control register during driver load.

      Impact: None.

   Enhancements:
   -------------
   1. Change: Changed memory allocation ioctl to support diagnostics
              program doing DMA tests.
              Added a new ioctl to force Nvram write protect on/off
              in case the write protect setting is wrong in the nvram.

      Impact: None.

v7.1.6 (Oct. 27, 2003)
======================

   Fixes:
   ------
   1. Problem: (CQ #8732) Unloading bcm5700.ko in 2.6 kernels causes
               segmentation fault.

      Cause: Driver uses init_etherdev which has been deprecated by
             alloc_etherdev and register_netdev.

      Change: Changed to use the new APIs in 2.6 kernels.

      Impact: None.

v7.1.5 (Oct. 21, 2003)
======================

   Fixes:
   ------
   1. Problem: Driver does not compile on 2.5+ kernels.

      Cause:  mem_map_reserve/mem_unmap_reserve no longer defined in 2.5+
              kernels.

      Change: Changed to SetPageReserved/ClearPageReserved (More testing
              is needed to make sure this works on 2.5+ kernels)

      Impact: No impact on normal driver operations. The memory
              allocation ioctl that supports diagnostics may be impacted.

v7.1.4 (Oct. 17, 2003)
======================

   Enhancements:
   -------------
   1. Change: Added memory allocation ioctl to allow user apps to mmap it
              for dma tests.

      Imapct: None.

   Fixes:
   ------
   1. Problem: Driver does not load on ia64 with register_ioctl32_conversion
               undefined.

      Cause:   register_ioctl32_conversion not defined for ia64.

      Change:  Removed this routine for ia64.

      Imapct: None.

v7.1.2 (Oct. 13, 2003)
======================

   Enhancements:
   -------------
   1. Change: Added OEM string.

      Impact: None.

v7.1.1 (Oct. 07, 2003)
======================

   Enhancements:
   -------------
   1. Change: Added a few more diagnostics ioctl commands.

      Impact: None.

   2. Change: (CQ #8428) Added nic_tx_bd parameter.

      Impact: None.

   3. Change: Added ETHTOOL_GTSO and ETHTOL_STSO ioctl commands and
              changed TSO to be enabled by default (when supported
              by the NIC and the kernel)

      Impact: None.

   4. Problem: (CQ #8469) Mandrake 9.1 has new module path.

      Change: Modified Makefile to install driver in the new 3rdparty path.

      Impact: None.

   5. Problem: (CQ #8438) Some parameters do not assume default values
               as documented.

      Cause: When running in NAPI mode, some coalescing parameters have
             different default values.

      Change: Updated documentation and man page.

      Impact: None.


v7.1.0 (Sep. 22, 2003)
======================

   Fixes:
   ------
   1. Problem: SIOCNICE ioctl does not work in 64-bit systems when
               the calling application is 32-bit.

      Cause: The 32-bit ifreq data structure is converted by the
             kernel to 64-bit, messing up the nice_req structure.

      Change: Added 32-bit ioctl conversion routine to handle the
              proper conversion.

      Impact: None.
             
   Enhancements:
   -------------
   1. Problem: Ethtool -e does not output the same data on big
               and little endian systems.

      Change: Change swapping scheme so that nvram read/write routines
              will work with the same byte-stream data in big and little
              endian systems. 

      Impact: None.

    2. Change: Added support for 5705F.

       Impact: None.

v7.0.0 (Aug. 14, 2003)
======================

   Enhancements:
   -------------
   1. Problem: Phy ADC and gamma fix not applied properly to all
               relevant PHY cores.

      Change: Made appropriate changes to apply the fix to the
              relevant PHYs after PHY reset.

   2. Problem: 5704 SerDes drive transmission level not set properly. 

      Change: Changed 5704 SerDes' drive transmission level to 1.2V.

v6.2.20 (Aug. 08, 2003)
=======================

   Fixes:
   ------
   1. Problem: (CQ #8275) 5704B0 NICs not working properly on HP rx2600
               PCIX systems

      Cause: Problem in one of the hardware fixes in 5704 B0.

      Change: Disable the h/w fix.

      Impact: None.

v6.2.19 (July 31, 2003)
=======================

   Fixes:
   ------
   1. Problem: Repeated ifup/ifdown hangs systems using iommu's.

      Cause: Rx buffers not properly unmapped during ifdown.

      Change: Fixed driver to unmap all buffers during ifdown.

      Impact: None.

   2. Problem: (CQ# 8232) Copper NICs drop packets when connected
               to some switches.

      Cause: Phy register 0x18 (aux. ctrl) shadow 0 not set up
             properly. This bug was introduced when adding
             external loop back function in v6.2.18.

      Change: Fixed the phy register setting.

      Impact: None.
     
   Enhancements:
   -------------
   1. Problem: Not setting up dma mask (pci_set_dma_mask) according to
      Documentation/DMA-mapping.txt. 

      Change: Made the required changes when calling pci_set_dma_mask.

      Impact: None.

   2. Problem: Driver does not restore line speed settings after
               external loopback.

      Change: Added code to save line_speed settings before ext.
              loopback and to restore the settings afterward.

      Impact: None.

   3. Problem: Makefile does not compile driver properly on 2.5+ kernels.

      Change: Modified Makefile to support 2.4 anf 2.5+ kernels
              transparently. (More work needs to be done)

      Impact: None.

v6.2.18 (July 25, 2003)
=======================

   Fixes:
   ------
   1. Problem: TSO doesn't work on ia64 and big endian machines.

      Cause: U32 typedef as unsigned long and TSO firmware was not
             downloaded properly on big endian machines.

      Change: Fixed U32 typedef and big endian code for firmware
              downloading. Also made additional cleanup and testing
              on the big endian code.

      Impact: None.

   Enhancements:
   -------------
   1. Problem: TSO performance slightly below (< 10%) non-TSO
               performance on 5703/5704.

      Change: Optimized firmware to narrow the performance gap.

      Impact: None.

   2. Problem: (CQ #8184) Driver limits the number of Multicast addresses
               to 32.

      Change: Changed scheme to allow unlimited Multicast addresses by
              by just keeping the Hash values.

      Impact: None.

   3. Problem: (CQ #7822) Driver does not support ETHTOOL_GSTRINGS,
               ETHTOOL_GSTATS, ETHTOOL_GREGS, ETHTOOL_PHYS_ID ioctls.

      Change: Added these ioctls.

      Impact: None.

   4. Problem: Driver does not support 5704 B0.

      Change: Added support for 5704 B0.

      Impact: None.

v6.2.17 (July 14, 2003)
=======================

   Fixes:
   ------
   1. Problem: (CQ8125) ethtool -e hangs system

      Cause: ethtool tries to read 1Mbytes of data from the slow
             nvram.

      Change: Changed maximum size of nvram to 128K and added a 1K
              limit to ETHTOOL_GEEPROM ioctl.

      Impact: None.

   2. Problem: Driver does not work properly on the latest 2.5 kernels
               and generates "irq xx: nobody cared!" message.

      Cause: Interrupt service routine needs to return value to indicate
             whether interrupt was serviced or not in the latest 2.5
             kernels.

      Change: Made the necessary change in the ISR.

      Impact: None. Still compatible with 2.4 and older kernels.

v6.2.16 (July 11, 2003)
=======================

   Enhancements:
   -------------
   1. Problem: Link polling interval for 5703S NICs is too long.

      Change: Decreased the link polling interval to 1/4 second.

      Impact: None.

v6.2.15 (July 10, 2003)
=======================

   Fixes:
   ------
   1. Problem: (CQ7987) Blade NIC link toggles up and down under network
               stress.

      Cause: PCS SYNC signal appears to be unstable in some cases
             under stress.

      Change: Changed driver to poll for link changes instead of using
              interrupts. Also added code to proceed with PHY setup
              only if PCS SYNC or SIGNAL DETECT are down. These changes
              allow the NIC to run with minimal interruption when the NIC
              occasionally loses PCS SYNC for short periods of time.

      Impact: May slightly affect link change/autoneg behavior. 
 
v6.2.14 (July 01, 2003)
=======================

   Fixes:
   ------
   1. Problem: Driver panics when loading on 2.4.20-18.7 RH kernel.

      Cause: Makefile compiles driver with kgcc, making the driver
             incompatible with the kernel that was compiled with gcc.

      Change: Modified Makefile to choose kgcc only if the kernel
              was compiled with kgcc.

      Impact: None.

   2. Problem: Link error when compiling driver into kernel with
               CONFIG_HOTPLUG not defined.

      Cause: __devexit_p not used in the bcm5700_remove_one pointer.

      Change: Added __devexit_p for the bcm5700_remove_one pointer.

      Impact: None.

v6.2.11 (May 16, 2003)
======================

   Fixes:
   ------
   1. Problem: CQ#7791 Driver cannot consistently lease DHCP address.
  
      Cause: The Broadcom NICs sometimes takes longer to link up
             when connected to certain switches. This may cause
             the ifup script to conclude that link is down and not
             proceed to obtain an IP address using DHCP.

      Change: The workaround is done in the driver to return error when the
              mii-tool or ethtool getlink ioctl interfaces are called during
              the first 6 seconds after driver reset. When the driver returns
              error, the ifup script will assume link is up and proceed with
              the DHCP request. After 6 seconds, these ioctl interfaces will
              return the true link states at the time they are called.

      Impact: ifup always proceeds with DHCP request whether link is up
              or down.

v6.2.7 (May 14, 2003)
=====================

   Enhancements:
   -------------
   1. Problem: Driver does not have OEM strings for some 5703 B0 NICs.

      Change: Added OEM sub IDs and description strings.


v6.2.6 (May 09, 2003)
=======================

   Enhancements:
   -------------
   1. Problem: Driver does not support 5901 A2/A3.

      Change: Added support for 5901 A2/A3.


v6.2.5 (May 05, 2003)
=======================

   Fixes:
   ------
   1. Problem: Driver intermittently won't load when ASF is enabled.

      Cause: Driver's init function's PHY routines contend with ASF.

      Change: Removed PHY access routines in init function when ASF is
              enabled. Using the latest firmware (2.33) will guarantee
              that the proper PHY ID will be obtained by the driver.

   Enhancements:
   -------------
   1. Problem: Driver does not support 5901.

      Change: Added support for 5901.

v6.2.4 (April 29, 2003)
=======================

   Fixes:
   ------
   1. Problem: The PHY lockup problem described in v6.2.3 Fix #4 below
               theoretically can affect other PHY cores in 5703 and 5705. 

      Cause: Hardware bug in the PHY core. Probability of lockup is
             extremely small.

      Change: Expanded the lockup detection and recovery code to 5703,
              5704, and 5705. Also changed the driver to do a PHY reset
              on link down on all versions of 5705. Also added PHY reset
              before restart autoneg in ethtool for 5703, 04, and 05.

v6.2.3 (April 18, 2003)
=======================

   Fixes:
   ------
   1. Problem: (CQ #7518) Using ethtool to set speed before ifup crashes
               the system when using fiber NICs.

      Cause: ethtool ioctl may access the status block which is not
             initialized before ifup.

      Change: Added check before proceeding with some ethtool ioctls.

      Impact: Only impact certain ethtool commands.


   2. Problem: (CQ #7577) Cannot receive traffic in some rare situations
               after loading the driver.

      Cause: In some rare situations when running in NAPI mode, the chip
             generates a receive interrupt before the interface state is
             up. The driver then disables rx interrupt and schedules the
             polling function which fails because the interface is not up.
             This polling function will not be called and no rx packets
             will be processed.

      Change: Added check for the return value of netif_rx_schedule_prep()
              and will only disable rx interrupt if it returns success.

      Impact: Receive code path in NAPI mode.


   3. Problem: ethtool -r (restart autoneg) does not work on 5704S.

      Cause: LM_SetupPhy does not restart autoneg if autoneg is already
             set for 5704S.

      Change: Added code to first disable autoneg and then reneable it.

      Impact: Only affects ethtool -r for fiber NICs.


   4. Problem: In some extremely rare situations, 5704 Copper NICs
               may not link up after a PHY reset.

      Cause: On some 5704 PHY cores, there is a small probability of
             lock up after a PHY reset.

      Change: Added code to detect PHY lock up after a PHY reset and
              reset again if lock up is detected.

      Impact: The added lock up detection and recovery code affects
              driver reset and link down events where PHY resets are
              performed.


v6.2.2 (04/09/03)

- Fixed the problem of intermittently using a MAC address of all zeros.
- Added support for BASP in NAPI mode.
- Added polling mode to support netdump.

v6.2.1 (03/25/03)

- Added NAPI.

v6.2.0 (03/18/03)

- Added support for 5788.
- Changed locking functions into macros to avoid passing the flags.

v6.0.3 (02/25/03)

- Fixed the problem of 5704S not linking when it is set to autoneg. and the
  link partner has autoneg. disabled.

v6.0.2 (02/14/03)

- Fixed the problem of T3_CHIP_ID_5705_A2 not defined in tigon3.h

v6.0.1 (02/11/03)

- Fixed some minor bugs in the adaptive coalescing logic.

v6.0.0 (02/10/03)

- Fixed another ASF problem that occurred when WOL was disabled in firmware
  but enabled in the driver. 

- Added new device IDs for 5705 A2/A3 and made necessary changes to support
  5705 A3.

v5.0.22 (02/07/03)

- Fixed the problem of ASF malfunction when the device is shutdown.

v5.0.21 (02/06/03)

- Fixed the problem of ifup (mii-tool) always detecting link down on 5704S.
- Fixed the problem of high CPU utilization when receiving line-rate traffic
  from Smartbits or Ixia by limiting the number of buffers allocated in the ISR.

v5.0.20 (02/05/03)

- Fixed a bad IP checksum problem in the 5702/03/04 TSO firmware.

v5.0.19 (01/23/03)

- Changed Makefile to include proper compiler switches for x86_64 architectures.
- Fixed a bug in the adaptive coalescing function. Some variables were not
  properly initialized after ifdown and ifup and this bug may cause
  low performance especially when using jumbo frames.
- Tweaked the adaptive coalescing parameters slightly to improve netperf
  performance.

v5.0.17 (01/10/03)

- Made changes for 5705 A2.
- Added autoneg. workaround for 5704S.

v5.0.16 (01/03/03)

- Fixed the hang problem on 5700 during ifdown.

v5.0.15 (01/03/03)

- Fixed some WOL issues.
- Fixed TSO problems on 5702/03/04.
- Fixed problems with the network_install dd images.

v5.0.14 (12/19/02)

- Made flow control work better.
- Added 10Mbps limit for 5704 WOL.
- Removed 5901 and 5705MFE support.

v5.0.12 (12/12/02)

- Added diagnostics ioctls.
- Enabled flow control by default.

v5.0.11 (12/06/02)

- Fixed data corruption problem on 5705 with TSO enabled.
- Fixed 5701 lockup during initialization.

v5.0.10 (11/20/02)

- Added support for 5705MFE and 5901.
- Added TSO for 5705 A1.
- Fixed ifconfig hang on Intel McKinley.

v5.0.9  (11/08/02)

- Made changes for 5705 A1 chips.

v5.0.8  (11/05/02)

- Fixed ASF problem on 5705.
- Fixed problem with changing MAC address.
- Added MTU change using ifconfig.
- Fixed problem running on AMD X86_64 machines.

v5.0.7  (10/11/02)

- Fixed 5704S link related problems.
- Improved performance slightly on some PCIX machines.
- Fixed GEEPROM to allow full access to NVRAM.

v5.0.6  (10/03/02)

- Fixed problem of 5704S not linking up.
- Added code to support autoneg in 5704S hardware.

v5.0.5  (09/24/02)

- Fine-tuned some parameters for improved performance.
- Added TSO.
- Fixed WOL problems on 5704.
- Fixed the problem of not enabling ASF on the fly.
- Fixed incorrect PCIX speed in proc file.
- Added 5704S support.
- Fixed incorrect PCIX speed in proc file.
- Fixed the initialization failure on 5701 LOMs.

v3.0.12 (08/22/02)

- Fixed the problem of not loading on CIOBE A1.
- Fixed intermittent hang problem when configuring 802.1q VLAN.

v3.0.11 (08/21/02)

- Added DIAG_SUSPEND/DIAG_RESUME ioctls.
- Added some workarounds for 5705.
- Added vlan tag size adjustment when receiving vlan tagged packets.

v3.0.10 (08/07/02)

- Fixed NVRAM write corruption.
- Added check to not allow jumbo MTUs on 5705.
- Added WOL on OEM 5703 Fiber LOM.

v3.0.9 (08/05/02)

- Added support for 5705.

v3.0.8 (07/25/02)

- Fixed VLAN problem with BASP.
- Added new 5704 IDs.
- Added support for 5702FE.

v3.0.7 (07/17/02)

- Changed to enable VLAN tag stripping only when VLAN or BASP is registered.
- Fixed problem of sending bad zero-copy packets.
- Added additional workaround for systems with AMD762.
- Adjusted EEPROM delay loop.

v3.0.6 (06/25/02)

- Fixed an ASF failure.
- Added 802.1Q VLAN
- Added a locking scheme for PHY access.
- Fixed an intermittent crash problem with fiber NICs.
- Adjusted fiber autoneg. logic to work with 3Com 4900SX switch.
- Added netif_carrier_on and netif_carrier_off.

v3.0.5 (05/30/02)

- Fixed occasional hang during load and unload.
- Fixed non-zero statistics when stats_coalesce_ticks is 0.

v3.0.4 (05/15/02)

- Fixed 10Mbps line speed setting bug.
- Fixed problem with jumbo packets.
- Fixed a compile warning on Red Hat 7.3

v3.0.3 (05/13/02)

- Added support for ASF.
- Added 64-bit counters for 64-bit machines.
- Reduced code size.
- Fixed intermittent VPD failures.

v3.0.2 (05/03/02)

- Fixed a bug on PCIX systems.

v3.0.1 (05/02/02)

- Added workaround for Intel ICH and ICH0 chipsets.
- Fixed 5704 related problems.

v3.0.0 (04/22/02)

- Added 5704 support
- Reduced some overhead in the upper/lower driver interface.

v2.2.19 (04/10/02)

- Fixed a panic problem on 5700 under heavy traffic on certain machines.
- Reduced code size slightly.
- Added necessary delays after changes to GPIO.

v2.2.18 (04/03/02)

- Added new OEM subsystem IDs.
- Fixed some ethtool problems.

v2.2.17 (04/02/02)

- Adjusted some delay loops to avoid hangs during intermittent failures.

v2.3.0 (03/29/02)

- Special version with external memory and Mini ring support.

v2.2.12 (03/27/02)

- Minor fix for some fiber related issues.

v2.2.11 (03/23/02)

- Adjusted fiber autoneg scheme to be consistent with other Broadcom
  drivers.

v2.2.10 (03/21/02)

- Changed Fiber LED to software control.
- Fixed 4 GByte boundary check for 5700.

v2.2.9 (03/13/02)

- Fixed a hang problem on 5703S with cable disconnected.

v2.2.8 (03/07/02)

- More changes to fiber autonegotiation - interrupt with polling backup
  for fiber link changes.

v2.2.7 (03/06/02)

- Made some changes to autonegotiation of fiber.

v2.2.6 (03/05/02)

- Added fix for 5703S.
- Improved adaptive interrupt coalescing.
- Fixed a problem in WOL.

v2.2.5 (02/27/02)

- Fixed a big endian problem.

v2.2.4 (02/27/02)

- Added new device IDs for 5703/5702.
- Fixed parity error NMIs with 5703 on PCIX systems.
- Added Ethernet@WireSpeed.

v2.2.3 (02/07/02)

- Fixed EEPROM corruption during repeated load/unload of the driver.
- Changed driver to use polling for fiber link changes.

v2.2.1 (01/23/02)

- Increased eeprom timing delays for slower clocks.

v2.2.0 (01/22/02)

- First release for 5702/5703 A1.

v2.0.34 (01/04/02)

- Fixed data corruption problem on PCIX systems under heavy traffic.

v2.0.32 (01/02/02)

- No change.

v2.0.31 (12/14/01)

- Changed i/o accesses to use writel/readl macros.
- Fixed problem when loading driver on an OEM LOM with no cable attached.
- Fixed problem of setting IFF_ALLMULTI.
- Changed to use pci_map_page to map the zero copy transmit fragments.

v2.0.28 (11/05/01)

- Added SIOCETHTOOL ioctl support.

v2.0.27 (10/26/01)

- Fixed a link up problem for an OEM LOM.

v2.0.26 (10/25/01)

- Added 5702 support.

v2.0.25 (10/22/01)

- Added Rx_Short_Fragments and other counters.
- Added code to detect AMD762 Northbridge and enable PCI ordering on that chip.

v2.0.24 (09/19/01)

- Fixed intermittent link failures.

v2.0.21 (09/14/01)

- Fixed zero copy failure.

v2.0.19 (09/11/01)

- Fixed the problem of over reporting CRC errors.
- Fixed the problem of late collisions in 1000Mbps half duplex.

v2.0.18 (08/24/01)

- Added same fix in 2.0.17 for the latest A3 chips.

v2.0.17 (08/22/01)

- Fixed a lock-up problem when loading fibre card with no cable attached.

v2.0.16 (08/18/01)

- Fixed a panic caused by an interrupt before the NIC is fully initialized.

v2.0.15 (08/14/01)

- Fixed a problem that caused unnecessary resets to the chip during
heavy traffic.

v2.0.14 (08/09/01)

- Lowered core clock freq. in latest 5701 chip in 100Mbps WOL mode.

v2.0.12 (08/02/01)

- Fixed a 100Mbps fixed speed problem.
- Fixed the accidental clearing of RX stats during link changes.
- Added reentrancy protection in tasklet so that it will work on RH7.2 beta3.

v2.0.11 (07/19/01)

- Fixed some fiber autonegotiation problems.

v2.0.10 (07/13/01)

- Added promiscuous mode support.
- Improved performance, especially on 5700 chips.

v2.0.9 (07/04/01)

- Fixed IA64 DMA alignment problem.

v2.0.8 (07/03/01)

- Fixed panic during ifdown.

v2.0.7 (07/01/01)

- Fixed problems with fibre cards.
- Added 100Mbps WOL for 5701 B2 chip.

v2.0.6 (06/22/01)

- Improved adaptive receive interrupt coalescing.
- Added LED blinking ioctl.
- Added support for new boards.
- Fixed hang problem when cable is not attached.

v2.0.5 (06/18/01)

- Some performance improvements.
- Added adaptive receive interrupt coalescing.
- Preliminary release for IA64.

v2.0.4 (06/01/01)

- Fixed a problem with multiple cards using jumbo frames.

v2.0.3 (05/22/01)

- Fixed panic during hotplug.
- Fixed RPM error on Mandrake.

v2.0.2 (05/21/01)

- Fixed a spin lock problem.

v2.0.1 (05/18/01)

- Fixed memory leak when unloading driver.

v1.5.6 (05/11/01)

- Added additional OEM support.
- Added Wake-On-LAN support.

v1.5.4 (05/04/01)

- Fixed interrupt and TX hung problem on 5701.
- Added OEM strings.

v1.5.3 (04/26/01)

- Fixed parameter defaults.
- Added /proc filesystem reporting.

v1.5.2 (04/18/01)

- Fixed bug in transmit IP checksum.

v1.5.1 (04/15/01)

- Added scatter/gather, HIGHMEM DMA, and IP transmit checksum offload for the
  TUX kernel.
- Added support of BCM5701.

v1.5.0 (03/14/01)

- Added Fibre transceiver support.

v1.4.6 (02/14/01)

- Fixed the problem of dropping VLAN tagged 802.2/802.3 frames.
- Fixed Makefile to work in non Red Hat environments.
- Fixed the problem of over-counting receive errors.

v1.4.5 (01/31/01)

- Added PCI-X support for BCM5700.
- Fixed Jumbo frame problems by modifying some thresholds and increased
Jumbo frame size to 9K.

v1.4.4 (01/18/01)

- Fixed the problem of transmit congestion during very heavy traffic in pre-
2.4.0 kernels.

v1.4.3 (01/10/01)

- Changed driver to use new PCI DMA functions in 2.4 kernel.

v1.4.2 (01/03/01)

- Changed driver to use spin locks for SMP machines.
- Added spin locks around PRIVATE ioctls for MII registers .

v1.4.1 (12/26/00)

- Made changes for B1 chips.

v1.4.0 (12/19/00)

- Made changes for 2.4.0 kernel.

v1.3.8 (12/13/00)

- Fixed the problem of setting a user assigned MAC address.
- Added VLAN support for BASP.

v1.3.7 (12/01/00)

- Added code to handle BCM5401 B0 phy chips.

v1.3.6 (11/22/00)

- Fixed LED problems.

v1.3.5 (11/21/00)

- Fixed some flow control auto negotiation problems.

v1.3.4 (11/17/00)

- Fixed a problem of missing interrupts.
- Resolved all fixed speed related problems.

v1.3.3 (11/13/00)

- Fixed the problem of memory allocation failure in some machines.

v1.3.2 (11/09/00)

- Made more changes regarding fixed speeds. Also removed manual selection
  of 1000 Mbps.
- Made a SRPM package.

v1.03b (10/31/00)

- Fixed problems #452, #441, #364, and other speed related problems in the
  Lower Module.

v1.03 (10/30/00)

- Released Lower Module as tigon3.o.

v1.02c (10/27/00)

- Fixed the fixed speed problem in Lower Module.

v1.02b (10/24/00)

- Added new parameters for flow control settings.
- Fixed problem with uninitialized statistics counters (problem #338).

v1.02  (10/16/00)

- Modified for B0 chips, should also work for other chips.
- Reenabled TCP/UDP receive hardware checksums.

v1.01b (10/09/00)

- Changed driver to use pci* routines instead of pcibios* routines to obtain
  the correct IRQ on some MP machines.
- Resolved Problems #253, #257.

v1.01 (09/27/00)

- Added statistics collection function.
- Added jumbo frames support.
- Added MII related ioctl calls.
- Disabled UDP/TCP receive checksum offload to workaround a memory corruption
  problem in A1 chips.
- Fixed interrupt sharing problem.

v1.00 (09/13/00)

-First release of the driver for BCM5700 A1 chips.

