Move the Cisco driver into drivers/net/ethernet/cisco/ and make the
necessary Kconfig and Makefile changes.

CC: Christian Benvenuti <benve@cisco.com>
CC: Vasanthy Kolluri <vkolluri@cisco.com>
CC: Roopa Prabhu <roprabhu@cisco.com>
CC: David Wang <dwang2@cisco.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

enic driver and the underlying hardware use different units for representing the interrupt coalesce timer.
Driver converts the interrupt coalesce timer in usec to hardware cycles while setting the relevant hardware
registers. The conversion factor can be different for each of the adapter hardware types. So it is dynamically
learnt from the adapter firmware using the devcmd CMD_INTR_COAL_CONVERT. This allows the driver to configure
the hardware interrupt coalesce timers in a platform independent way.
Signed-off-by: NDanny Guo <dannguo@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid Wang <dwang2@cisco.com>
Signed-off-by: NDavid S. Miller <davem@conan.davemloft.net>

This patch introduces new fw devcmds for port profile handling.
These new commands are similar to the current fw commands for
port profile handling. The only difference being that the new
commands split the existing port profile handling devcmds into multiple
fw commands, giving the driver finer control over port profile operations.
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid Wang <dwang2@cisco.com>
Signed-off-by: NChristian Benvenuti <benve@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch provides support to the newer version of firmware devcmd CMD_MCPU_FW_INFO
that returns additional information (ASIC type and revision) about the underlying hardware.
This knowledge is required by the driver to implement any hardware specific features.
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid Wang <dwang2@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove support for an older version (A1) of hardware
Signed-off-by: NChristian Benvenuti <benve@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid Wang <dwang2@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Replace no wait CMD_ENABLE firmware devcmd with CMD_ENABLE_WAIT
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid Wang <dwang2@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Make functions used locally in a file as static
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid Wang <dwang2@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Removed code that is unused
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid Wang <dwang2@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds support for firmware management device in enic driver.
A management device is a virtual PCIe device that firmware can present
to the host as its management endpoint. It provides the interface between
the host and adapter firmware for all management operations.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

1) Update copyright
2) Fix hardware queue descriptor field size CQ_ENET_RQ_DESC_FCOE_SOF_BITS
3) Include rtnetlink.h instead of if_link.h
4) Selectively flush writes to interrupt mask register
5) Use pci_enable_device_mem
6) Remove unused variables and header files
7) Fix size mismatch between memory alloc and free operations of a variable
8) Check for non null arguments to vic_provinfo_alloc
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Handle surprise hardware removals gracefully during devcmd issue and init,
cleanup of queues.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add new firmware devcmds - CMD_PROXY_BY_BDF, CMD_PACKET_FILTER_ALL,
CMD_ENABLE_WAIT.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Replace all printk routines with the (netdev|dev|pr)_<level> macros that
provide verbose logs.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add wrapper routines that issue devcmds to firmware and ensure that a
devcmd lock is held for each devcmd call.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The port profile information for a dynamic enic device is set by the upper
layers, that are oblivious to the device reset operation. We do not want a
reset operation erase the network state of a dynamic enic device as there
is no way to set up the port profile information again. Hence a lighter
reset operation called hang reset is used. Hang reset, unlike soft reset
does not reset the network state and resets the host side state only.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The current ingress vlan rewrite mode setting lets the hardware strip off
the tag control information of a packet received on native vlan. As a
result, the priority bits are also lost. The fix is to change the ingress
vlan rewrite mode setting such that the complete tag control information is
retained for packets that belong to native vlan.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix build warning on i386 (32-bit) with 32-bit dma_addr_t:

drivers/net/enic/vnic_dev.c: In function 'vnic_dev_init_prov':
drivers/net/enic/vnic_dev.c:716: warning: passing argument 3 of 'pci_alloc_consistent' from incompatible pointer type
include/asm-generic/pci-dma-compat.h:16: note: expected 'dma_addr_t *' but argument is of type 'u64 *'

Now builds without warnings on i386 and on x86_64.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc:	Scott Feldman <scofeldm@cisco.com>
Cc:	Vasanthy Kolluri <vkolluri@cisco.com>
Cc:	Roopa Prabhu <roprabhu@cisco.com>
Acked-by: NScott Feldman <scofeldm@cisco.com>

Add enic ndo_{set|get}_vf_port ops to support setting/getting
port-profile for enic dynamic devices.  Enic dynamic devices are just like
normal enic eth devices except dynamic enics require an extra configuration
step to assign a port-profile identifier to the interface before the
interface is useable.  Once a port-profile is assigned, link comes up on the
interface and is ready for I/O.  The port-profile is used to configure the
network port assigned to the interface.  The network port configuration
includes VLAN membership, QoS policies, and port security settings typical
of a data center network.

A dynamic enic initially has a zero-mac address.  Before a port-profile is
assigned, a valid non-zero unicast mac address should be assign to the
dynamic enic interface.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: NTejun Heo <tj@kernel.org>
Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

Add wrapper functions vnic_dev_notify_setcmd and vnic_dev_notify_unsetcmd
for firmware notify commands.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NRoopa Prabhu <roprabhu@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some misc changes to cleanup whitespace issues and fix/remove some #define
HW defintions.

1) fix some whitespace issues
2) more verbose err msg when resources aren't available to configure vnic
3) remove unused #define
4) fix RSS #define rss hash types
Signed-off-by: NVasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Deprecate some old APIa; change arguments to stats dump all API; add new
interrupt assert API
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A0 revision ASIC has an erratum on the RQ desc cache on chip where the
cache can become corrupted causing pkt buf writes to wrong locations.  The s/w
workaround is to post a dummy RQ desc in the ring every 32 descs, causing a
flush of the cache.  A0 parts are not production, but there are enough of
these parts in the wild in test setups to warrant including workaround.  A1
revision ASIC parts fix erratum.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Nic firmware can place resources (queues, intrs, etc) on multiple BARs, so
allow driver to discover/map resources beyond BAR0.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix this sparse warning:

  drivers/net/enic/vnic_dev.c:288:5: warning: symbol 'vnic_dev_capable' was not declared. Should it be static?
Signed-off-by: NHannes Eder <hannes@hanneseder.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add driver/firmware compatibility check.
Update firmware notify cmd to honor notify area size.
Add new version of init cmd.
Add link_down_cnt to notify area to track link down count.
Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A number of places still use %02x:...:%02x because it's
in debug statements or for no real reason. Make a few
of them use %pM.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NScott Feldman <scofeldm@cisco.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>