Move the Exar drivers into drivers/net/ethernet/neterion/ and make the
necessary Kconfig and Makefile changes.

CC: Jon Mason <jdmason@kudzu.us>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Update copyright information to reflect the Exar purchase of Neterion
Signed-off-by: NJon Mason <jon.mason@exar.com>
Signed-off-by: NSreenivasa Honnur <sreenivasa.honnur@exar.com>
Signed-off-by: NRamkrishna Vepa <ramkrishna.vepa@exar.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Compile-tested only.
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- Added napi support when MSIX is enabled.
- Moved test_msi function from s2io_open to probe function.
Signed-off-by: NSreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: NRamkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

- Support to add/delete/store/restore 64 and 128 Ethernet addresses for Xframe I and Xframe II respectively.
Signed-off-by: NSreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- Making sure register initialisation is complete before proceeding further.
  The driver must wait until initialization is complete before attempting to
  access any other device registers.
Signed-off-by: NSurjit Reang <surjit.reang@neterion.com>
Signed-off-by: NSreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

s2io, rename BIT macro

BIT macro will be global definiton of (1<<x)
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: Ramkrishna Vepa <ram.vepa@neterion.com>
Cc: Rastapur Santosh <santosh.rastapur@neterion.com>
Cc: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Cc: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

- Added support to unmask entire set of device errors and alarams.
        Alarm interrupts are generated for a myriad of purposes, ranging from
  illegal operations or requests to internal state machine errors and
  uncorrectable data corruption errors. In several cases the adapter can
  recover gracefully from unexpected events; however, in some cases, a device
  reset may be necessary. This patch handles alarms generated by all the
  blocks within the device.

  The adapter generates the following types of alarms:
        1. Link state transitions (local/remote fault) or other link-related
           problems.
        2. Problems with any device peripherals, including the EEPROM, FLASH,
           etc.
        3. Correctable ECC errors (single-bit errors) on internal data
           structures or frame data.
        4. Uncorrectable ECC errors (multi-bit errors) on internal data
           structures or frame data.
        5. State machine errors, which indicate that internal control
           structures have become corrupted.
        6. PCI related errors, including parity errors or illegal transactions.
        7. Other unexpected events.

- Implemented Jeff's review comments to use do_s2io_write_bits function to avoid
  duplicate codes.
Signed-off-by: NSivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: NSantosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: NRamkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

- Making MSIX as default intr_type
- Driver will test MSI-X by issuing test MSI-X vector and if fails it will
  fallback to INTA
Signed-off-by: NSivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: NRamkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- Mask single and double bit ETQ ecc errors to inhibit spurious interrupts.

(Resending; Removed HTML sections in the patch)
Signed-off-by: NSantosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

- Remove unused variables from s2io_nic structure

- Changed the memory failure printk messages to print only in debug mode

- Updated the copyright messages

(Resending; due to patch being corrupted)
Signed-off-by: NSantosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

- Added code to not to strip vlan tag when driver is in promiscuous mode
- Added module loadable parameter 'vlan_tag_strip" through which user can
  enable or disable vlan stripping irrespective of mode
  ( promiscuous or non-promiscuous ).
Signed-off-by: NSivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

Removed namespace collisions due to usage of nic_t as per Ralf's patch
Signed-off-by: NSivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

1. Fix for reset and link handling.
2. Allow for promiscuos mode and multicast state be maintained through
   ifconfig up and down.
3. Support to print adapter serial number.
Signed-off-by: NSivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

Signed-off-by: NJeff Garzik <jeff@garzik.org>

Hi,
	This patch contains additional statistics counters added to s2io driver
	these statistics are very much usefull in debugging the driver.
Signed-off-by: NAnanda Raju <ananda.raju@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

hi,
	This patch contains all the changes that were done to improve
	performance of s2io driver. one line  description of the changes
	are

	1. For Non NAPI case the rx interrupt handler is being called
	   unconditionally
	2. code optimization and adding prefetch skb->data
	3. Remove modulo operations in fast path
	4. Enable Group Reads and set backoff interval to 0x1000
	5. correct PIC_CNTL_SHARED_SPLITS  macro definition, and reduce
	   pause parameter
	6. Corrected logic of identifying rx buffer level in rx_buffer_level()
	7. fix DMA map and unmap done with different sizes in 1-buf mode
	8. Removed forcible disabling of ERO
	9. Send up the packets with transfer code = 0x5
Signed-off-by: NAnanda Raju <ananda.raju@neterion.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

This patch fixes the following bugs with offline diagnostics
code(run with "ethtool -t").

1. After running offline diagnostics, adapter would report
corrupted packets on receive. This was because of adapter not
being brought out of "RLDRAM test mode".
2. Current EEPROM test works only for Xframe I. Since Xframe II
uses different interface(SPI), support for this interface has
been added. Also, since SPI supports write access to all areas
of EEPROM, negative testing is done only for Xframe I.
3. Return values from subfunctions of offline diagnostics have
been corrected.
4. In register test, expected value from rx_queue_cfg register
is made to depend on adapter type.
5. After the test, need to restore values at EEPROM offsets
0x4F0 and 0x7F0. These locations were modified as part of test.
6. Use macro SPECIAL_REG_WRITE for write access to mc_rldram_test_ctrl
register. Also, couple of unnecessary writes to mc_rldram_test_ctrl
have been removed.
Signed-off-by: NRavinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

Hi,
This patch contains the following hardware related fixes and other
miscellaneous bug fixes.

1. Updated the definition of single and double-bit ECC errors
2. Earlier we were allocating Transmit descriptors equal to
   MAX_SKB_FRAGS. This was causing a boundary condition failure.
   Need to allocate MAX_SKB_FRAGS+1 descriptors.
3. On some platforms(like PPC), pci_alloc_consistent() can return
   a zero DMA address. Since the NIC cannot handle zero-addresses,
   a workaround has been provided. Basically, we don't use such
   that page. We reallocate.
4. If list_info allocation failed during driver load, check for
   it during driver exit and return instead of trying to dereference
   NULL pointer.
5. Increase the debug level of few non-critical debug messages.
6. Reset the card on critical ECC double errors only in case of
   XframeI since XframeII can recover from such errors.
7. Print copyright message on driver load.
8. Bumped up the driver version no. to 2.0.8.1
Signed-off-by: NRavinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

Hi,
The below patch implements a new "Link state change handling"
scheme supported by the Xframe II adapter. It also bumps up the
driver version to 2.0.2.0.
Signed-off-by: NRavinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: NRaghavendra Koushik <raghavendra.koushik@neterion.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

Hi,
This patch provides basic support for the Xframe II adapter.
Includes the following changes:
1. New values to program XAUI interface.
2. Print the PCI/PCI-X mode(bus frequency, width).
3. Remove EOI from reset during intialization.
4. Enable all 8 PCCs if Xframe II adapter.
5. Programs the RLDRAM size depending on the device.
(Note: RLDRAM size on XFARME-I is 64Mb whereas on XFRAME-II it's 32 Mb).
6. Enable extended(64-bit) statistics counters.
7. Program timer interrupt duration based on PCI/PCI-X clock speed.
8. Not required to save/restore PCI config space before/after reset.
Signed-off-by: NRavinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: NRaghavendra Koushik <raghavendra.koushik@neterion.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

Hi,
Below patch addresses few h/w specific issues.
1. Check for additional ownership bit on Rx path before
   starting Rx processing.
2. Enable only 4 PCCs(Per Context Controller) for Xframe I
   revisions less than 4.
3. Program Rx and Tx round robin registers depending on
   no. of rings/FIFOs.
4. Tx continous interrupts is now a loadable parameter.
5. Reset the card if we get double-bit ECC errors.
6. A soft reset of XGXS being done to force a link state change has been
   eliminated.
7. After a reset, clear "parity error detected" bit,
   PCI-X ECC status register, and PCI_STATUS bit in
   tx_pic_int register.
8. The error in the disabling allmulticast implementation has been
   rectified.
9. Leave the PCI-X parameters MMRBC, OST etc. at their
   BIOS/system defaults.
Signed-off-by: NRavinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: NRaghavendra Koushik <raghavendra.koushik@neterion.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

Hi,
We are submitting a series of 13 patches to support our Xframe I and
Xframe II line of products. The patches can be categorized as follows:

Patches 1-8 : Changes applicable to both Xframe I and II
Patches 9-11: Xframe II specific features
Patch 12: Addresses issues found during testing cycle.
Patch 13: Incorpoates mostly the review comments from community
	and some last moment bug fixes.

Please review the patches and let us know your comments.

Starting with patch 1 below.
This patch involves cosmetic changes(tabs and indentation,
regrouping of transmit and receive data structures, typecasting,
code cleanup).
Signed-off-by: NRavinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: NRaghavendra Koushik <raghavendra.koushik@neterion.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!