Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Driver firmware mailbox interface was operating in polling mode
  because of limitations with the earlier versions of 83xx adapter firmware.
  These issues are resolved and we are implementing interrupt based mailbox
  mechanism.

o Data structures and API's for interrupt mode mailbox mechanism.
Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Implement shutdown and resume handlers for 83xx.
o Refactor 82xx shutdown and resume handlers.
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Minimize sleep duration and check for adapter status.
o Exit from loopback test if adapter reset is detected.
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support for configuring secondary unicast address which
will use existing HW filters to store all the unicast MAC
addresses and prevent device going into promiscuous mode.
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Provide diagnostics routines enough time to unwind before
proceeding with reset recovery.
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Fix mailbox response poll time to maximum 5 seconds which
  includes mailbox response time as well as time required for
  processing AEN if any.
o Driver need to read firmware control mailbox register instead
  of host control mailbox register.
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Fix display for interface while using 'ethtool <device>' for 83xx adapter
Signed-off-by: NHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Read eSwitch statistics from adapter and display them as part
  of ethtool statistics.
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o When mailbox interrupt is disabled PF should be
  able to process request from VF. Enable polling
  for such cases.
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Do not disable mailbox interrupts while running
  loopback test through SR-IOV PF.
Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Implement recovery mechanism for VF to recover from
  adapter resets.
Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o 82xx adapter requires VLAN id in little endian format.
  Instead of passing vlan id parameter as __le16, pass the
  parameter as u16 and  use cpu_to_le16 at appropriate places.
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Add support for commands from VF to PF.
o PF validates the commands sent by the VF before sending
  it to adapter.
o vPort is a container of resources. PF creates vPort
  for VFs and attach resources to it. vPort is
  transparent to the VF.
o Separate 83xx TX and RX hardware resource cleanup from 82xx.
Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Adapter provides communication channel between VF and PF.
  Any control commands from the VF driver are sent to the PF driver
  through this communication channel. PF driver validates the
  commands before sending them to the adapter. Similarly PF driver
  forwards any control command responses  to the VF driver
  through this communication channel.  Adapter sends message pending
  event to VF or PF when there is an outstanding response or a command
  for VF or PF respectively. When a command or a response is sent over
  a channel VF or PF cannot send another command or a response
  until adapter sends a channel free event. Adapter allocates 1K area to
  VF and  PF each for this communication.
o Commands and  responses are encapsulated in a header. Header determines
  sequence id, number of fragments, fragment number etc.
Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Add PCI device entry for VF.
o Add HW operations for VF.
Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Add QLCNIC_SRIOV to Kconfig.
o Provide PCI sysfs hooks to enable and disable SR-IOV.
o Allow enabling only when CONFIG_QLCNIC_SRIOV is defined.
o qlcnic_sriov_pf.c has all the PF related SR-IOV
  functionality.
o qlcnic_sriov_common.c has VF functionality and SR-IOV
  functionality which is common between VF and PF.
o qlcnic_sriov.h is a common header file for SR-IOV defines.
Signed-off-by: NManish Chopra <manish.chopra@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

QLogic applications use these callbacks to perform

o  NIC Partitioning (NPAR) configuration and management
o  Diagnostic tests
o  Flash access and updates
Signed-off-by: NHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Add support for LED test on 83xx series adapters
Signed-off-by: NHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Split mailbox structure elements on boundary of adapter
  register size i.e. 32bit.
o Shuffle the position of structure elements based on CPU endianness.
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Set gso_size to MSS obtained from adapter to avoid incorrect estimation
of receive MSS, which would lead to delayed ACKs in some traffic patterns

Example:
Send two or three packets and wait for ack and only then send
remaining packets.
Signed-off-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

o Cleanly seperate 83xx Legacy interrupt handling code from 82xx
o Update 83xx Legacy interrupt handling code to match with the spec
Signed-off-by: NHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Cleanly separate 83xx diagnostic IRQ test from 82xx
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Cleanly separate 83xx diagnostic loopback test routines from 82xx
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Create a helper routine to handle async events, as it is being called
from multiple places
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We recently refactored the driver source, this patch will take care of
updating copyright date and adding it to newly added files.
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

83xx ethtool interface routines
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add 83xx register dump routines
Update 82xx register dump routines
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NSritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Enable 83xx virtual NIC mode
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Flash template provides instructions to stop, restart and initalize the
firmware. These instructions are abstracted as a series of read, write and
poll operations on hardware registers. Register information and operation
specifics are not exposed to the driver. Driver reads the template from
flash and executes the instructions located at pre-defined offsets.

Template based firmware reset recovery and initialization mechanism minimize
driver changes as firmware evolves.
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Inter Driver Communication (IDC) module.
CNA function drivers(ISCSI, FCOE and NIC) which shares the adapter
relies on IDC mechanism for gracefull shut down, restart and
firmware error recovery.
Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

83xx adapter flash memory map, data structures and interface routines
Signed-off-by: NHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add 83xx sysfs interface routines
Update 82xx sysfs interface routines
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Enable base 83xx adapter driver.

Common driver interface routines like probe,
interface up/down routines, irq and resource
allocation routines are modified to add support for 83xx
adapter.
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NSritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add 83xx adapter data path routines
Update few 82xx adapter data path routines
Modify datapath resource allocation routines
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NSritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

83xx adapter register map.
83xx hardware interface routines.
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NSritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: NSony Chacko <sony.chacko@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>