[SRU][Focal][PULL] update ENA driver for LLQ

[Kamal Mostafa]

BugLink: https://bugs.launchpad.net/bugs/1890845

This pull request update the Amazon ENA driver in focal-generic with all
upstream commits from mainline and net-next, through:

  0e3a3f6dacf0 net: ena: support new LLQ acceleration mode

The commits are all cherry-picks or light context backports; touches only the
ENA driver.

The driver update provides new hardware support, fixes, and features required
to support future ENA devices at AWS.

I have smoke-tested the build; no problems noted.

 -Kamal

-----

The following changes since commit 9416868088c864ace64acae00fa42f4d3c687404:

  UBUNTU: upstream stable to v5.4.54 (2020-07-30 16:27:08 -0600)

are available in the Git repository at:

  git://git.launchpad.net/~kamalmostafa/ubuntu/+source/linux/+git/focal ena-update

for you to fetch changes up to 2e6e4b15854114b4409eb480565ec91850c54435:

  net: ena: support new LLQ acceleration mode (2020-08-07 12:58:57 -0700)

----------------------------------------------------------------
Arthur Kiyanovski (31):
      net: ena: fix default tx interrupt moderation interval
      net: ena: fix broken interface between ENA driver and FW
      net: ena: fix incorrect setting of the number of msix vectors
      net: ena: fix request of incorrect number of IRQ vectors
      net: ena: avoid memory access violation by validating req_id properly
      net: ena: fix continuous keep-alive resets
      net: ena: avoid unnecessary admin command when RSS function set fails
      net: ena: change default RSS hash function to Toeplitz
      net: ena: drop superfluous prototype
      net: ena: cosmetic: extract code to ena_indirection_table_set()
      net: ena: add support for the rx offset feature
      net: ena: rename ena_com_free_desc to make API more uniform
      net: ena: use explicit variable size for clarity
      net: ena: fix ena_com_comp_status_to_errno() return value
      net: ena: simplify ena_com_update_intr_delay_resolution()
      net: ena: cosmetic: set queue sizes to u32 for consistency
      net: ena: cosmetic: fix spelling and grammar mistakes in comments
      net: ena: cosmetic: fix line break issues
      net: ena: cosmetic: remove unnecessary code
      net: ena: cosmetic: code reorderings
      net: ena: cosmetic: fix spacing issues
      net: ena: cosmetic: minor code changes
      net: ena: reduce driver load time
      net: ena: avoid unnecessary rearming of interrupt vector when busy-polling
      net: ena: add reserved PCI device ID
      net: ena: cosmetic: satisfy gcc warning
      net: ena: cosmetic: change ena_com_stats_admin stats to u64
      net: ena: add support for traffic mirroring
      net: ena: enable support of rss hash key and function changes
      net: ena: move llq configuration from ena_probe to ena_device_init()
      net: ena: support new LLQ acceleration mode

Colin Ian King (2):
      net: ena: ethtool: remove redundant non-zero check on rc
      net: ena: ethtool: clean up minor indentation issue

Leon Romanovsky (1):
      net/amazon: Ensure that driver version is aligned to the linux kernel

Sameeh Jubran (18):
      net: ena: change num_queues to num_io_queues for clarity and consistency
      net: ena: multiple queue creation related cleanups
      net: ena: ethtool: get_channels: use combined only
      net: ena: make ethtool -l show correct max number of queues
      net: ena: remove redundant print of number of queues
      net: ena: ethtool: support set_channels callback
      net: ena: implement XDP drop support
      net: ena: Implement XDP_TX action
      net: ena: Add first_interrupt field to napi struct
      net: ena: allow setting the hash function without changing the key
      net: ena: changes to RSS hash key allocation
      net: ena: remove code that does nothing
      net: ena: add unmask interrupts statistics to ethtool
      net: ena: add support for reporting of packet drops
      net: ena: use SHUTDOWN as reset reason when closing interface
      net: ena: cosmetic: remove unnecessary spaces and tabs in ena_com.h macros
      net: ena: xdp: XDP_TX: fix memory leak
      net: ena: xdp: update napi budget for DROP and ABORTED

Vaibhav Gupta (1):
      ena_netdev: use generic power management

Wang Hai (1):
      net: ena: Fix using plain integer as NULL pointer in ena_init_napi_in_range

YueHaibing (3):
      net: ena: remove set but not used variable 'rx_ring'
      net: ena: remove set but not used variable 'hash_key'
      net: ena: Make some functions static

 drivers/net/ethernet/amazon/ena/ena_admin_defs.h  |   66 +-
 drivers/net/ethernet/amazon/ena/ena_com.c         |  141 ++-
 drivers/net/ethernet/amazon/ena/ena_com.h         |   93 +-
 drivers/net/ethernet/amazon/ena/ena_common_defs.h |    2 +-
 drivers/net/ethernet/amazon/ena/ena_eth_com.c     |   77 +-
 drivers/net/ethernet/amazon/ena/ena_eth_com.h     |   10 +-
 drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h |    6 +-
 drivers/net/ethernet/amazon/ena/ena_ethtool.c     |  109 +-
 drivers/net/ethernet/amazon/ena/ena_netdev.c      | 1355 ++++++++++++++++-----
 drivers/net/ethernet/amazon/ena/ena_netdev.h      |  108 +-
 drivers/net/ethernet/amazon/ena/ena_pci_id_tbl.h  |    5 +
 drivers/net/ethernet/amazon/ena/ena_regs_defs.h   |    2 +-
 12 files changed, 1447 insertions(+), 527 deletions(-)