Merge branch 'ionic-Add-ionic-driver'

Shannon Nelson says:

====================
ionic: Add ionic driver

This is a patch series that adds the ionic driver, supporting the Pensando
ethernet device.

In this initial patchset we implement basic transmit and receive.  Later
patchsets will add more advanced features.

Our thanks to Saeed Mahameed, David Miller, Andrew Lunn, Michal Kubecek,
Jacub Kicinski, Jiri Pirko, Yunsheng Lin, and the ever present kbuild
test robots for their comments and suggestions.

New in v7:
 - stop Tx queue if no descriptor space left after a Tx
 - return ETIMEDOUT if the module data can't be copied out safely
 - remove unnecessary synchronize_irq() before free_irq()
 - use eth_prepare_mac_addr_change() and eth_commit_mac_addr_change() helpers
 - propagate error out of ionic_dl_info_get()

New in v6:
 - added a new patch with devlink info tags for ASIC and general FW
 - use the new devlink info tags in the driver
 - fixed up TxRx cleanup on setup failure
 - allow for possible 0 address from dma mapping of Tx buffers
 - remove a few more unnecessary debugfs error checks
 - use innocuous hardcoded strings in the identify message
 - removed a couple of unused functions and definitions
 - fix a leak in the error handling of port_info setup
 - changed from BUILD_BUG_ON() to static_assert()

New in v5:
 - code reorganized for more sane layout, with a side benefit of getting
   rid of a "defined but not used" complaint after patch 5
 - added "ionic_" prefix to struct definitions and fixed up remaining
   reverse christmas tree formatting (I think I got them all...)
 - ndo_open and ndo_stop reworked for better error recovery
 - interrupt coalescing enabled at driver start
 - unnecessary log messaging removed from events
 - double copy added in the module prom read to assure a clean copy
 - added BQL counting
 - fixed a TSO unmap issue found in testing
 - generalize a bit-flag wait with timeout
 - added devlink into earlier code and dropped patch 19

New in v4:
 - use devlink struct alloc for ionic device specific struct
 - add support for devlink_port
 - fixup devlink fixed vs running version usage
 - use bitmap_copy() instead of memcpy() for link_ksettings
 - don't bother to zero out the advertising bits before copying
   in the support bits
 - drop unknown xcvr types (will be expanded on later)
 - flap the connection to force auto-negotiation
 - use is_power_of_2() rather than open code
 - simplify set/get_pauseparam use of pause->autoneg
 - add a couple comments about NIC status data updated in DMA spaces

New in v3:
 - use le32_to_cpu() on queue_count[] values in debugfs
 - dma_free_coherent() can handle NULL pointers
 - remove unused SS_TEST from ethtool handlers
 - one more case of stop the tx ring if there is no room
 - remove a couple of stray // comments

New in v2:
 - removed debugfs error checking and cut down on debugfs use
 - remove redundant bounds checking on incoming values for mtu and ethtool
 - don't alloc rx_filter memory until the match type has been checked
 - free the ionic struct on remove
 - simplified link_up and netif_carrier_ok comparison
 - put stats into ethtool -S, out of debugfs
 - moved dev_cmd and dev_info dumping to ethtool -d, out of debugfs
 - added devlink support
 - used kernel's rss init routines rather than open code
 - set the Kbuild dependant on 64BIT
 - cut down on some unnecessary log messaging
 - cleaned up ionic_get_link_ksettings
 - cleaned up other little code bits here and there
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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