Store msi target status register offset in adapter struct.
This avoids contention on msi_tgt_status table from interrupt
hadlers of different pci function.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Pause traffic during mac addr change.
o Enable setting mac address for NX3031.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o use standard linked list api for mac addr list management
  in NX3031.
o release mac addresses in firmware in dev close().
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix the distance check between tx ring producer and consumer that
could lead to tx ring wrap around.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o hold the firmware in memory across suspend, since filesystem
  may not be up after resuming.
o reset the chip after requesting firmware, to minimize downtime
  for NC-SI.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o move related fields into netxen_recv_context struct.
o allocate rx buffer and descriptor rings dynamically.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Firmware starting 4.0.402 started supporting link events, disable
it for older firmwares.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAmit Kumar Salecha <amit@netxen.com>
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Enable multiple rx rings for older NX2031 chip, firmware 3.4.336
or newer supports this feature.
Signed-off-by: NAmit Kumar Salecha <amit@netxen.com>
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Replace superfluous wrapper functions with two macros:

NXWR32 replaces netxen_nic_reg_write, netxen_nic_write_w0,
netxen_nic_read_w1, netxen_crb_writelit_adapter.

NXRD32 replaces netxen_nic_reg_read, netxen_nic_read_w0,
netxen_nic_read_w1.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o remove unnecessary length parameter since register access
  width is fixed 4 byte.
o remove superfluous pci_read_normalize and pci_write_normalize
  functions.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This reduces netxen_adapter footprint when rss (msi-x) is disabled.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support for asynchronous events from firmware,
received over one of the rx rings.

Add support for event based phy interrupts, enhanced links
status reporting from firmware.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Removed duplicate firmware handshake, defer it until first
port (interface) is brought up.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o move tx stuff into nx_host_tx_ring structure, this will
  help managing multiple tx rings in future.
o sanitize some variable names
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Rearrange members to align them at right offset.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o remove unused structure defs.
o remove unnecessary includes.
o replace enums with specific #defines.
o reduce footprint of stats structure.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Replace all DMA_39BIT_MASK macro with DMA_BIT_MASK(39)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

To mark all features and bugfixes submitted since 4.0.11.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables the load balancing capability of firmware
and hardware to spray traffic into different cpus through
separate rx msix interrupts.

The feature is being enabled for NX3031, NX2031 (old) will be
enabled later. This depends on msi-x and compatibility with
msi and legacy is maintained by enabling single rx ring.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o remove max_ prefix from ring sizes, since they don't really
  represent max possible sizes.
o cleanup naming of rx ring types (normal, jumbo, lro).
o simplify logic to choose rx ring size, gig ports get half
  rx ring of 10 gig ports.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Detach network interface on PCI suspend and recreate hardware
context after resumes.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove flash size check which made sense only for ancient
boards with 1MB flash. The check is based on values read
from specific locations and fails with firmware size changes.

This prevents driver from getting right mac addresses.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove huge board config structure from each instance, read
only necessary fields from flash.

Replace board_type with port_type (1G/10G), there's another
board_type field describing card type (SFP/XFP/CX4).
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAX_RCV_CTX was set to 1, there's only rx context per
PCI function.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

rearrange open and close into hardware attach(), detach() and
nic up() and down(). this will be used for suspend/resume
subsequently.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o set port mode after resetting device.
o prefer cut-through firmware (doesn't require on-card memory).
o load flashed firmware if newer.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Support larger dma mask if firmware indicates capability
to handle larger addresses.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Extend copyright into 2009 and update address.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Split pci probe function into smaller logical blocks.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

PCI bar 0 is used for memory mapped register access.
If ioremap fails (returns NULL), register access results
in crash.

Use pci_ioremap_bar() instead of ioremap(), the latter
fails on on 32 bit powerpc where pci resource address is
> 32 bits.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The PCI function to physical port mapping is valid only for
old firmware. New firmware (4.0.0+) abstracts this.
So driver should never try to access phy using invalid
mapping. The behavior is unpredictable when PCI functions
4-7 are enabled on the same NIC.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For NX3031 pci doorbells are not used. If unnecessary mapping
of doorbell space fails, pci probe bails out.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When compile the latest kernel on IA64 platform,I got a warning:
drivers/net/netxen/netxen_nic_main.c:203: warning: label ‘set_32_bit_mask’ 
defined but not used

We do not need label ‘set_32_bit_mask’  on IA64 platform,So move it to #else.
Signed-off-by: NYang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove workaround for pcie bug in early revisions of NX3031
(rev 41 or earlier). This is taken care of during firmware init.

The workaround required writing pcie config reg of every
pcie function on a card, not all of which are enabled.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Cut down msi-x vectors from 8 to 1 since only one is used for now.
o Use separate handler for msi-x, that doesn't unnecessarily scrub
  msi status register.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Base versions handle constant folding now.
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o set netdev->vlan_features appropriately.
o fix tso descriptor initialization for vlan case.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>