Merge branch 'ionic-memory-usage-rework'

Shannon Nelson says:

====================
ionic memory usage rework

Previous review comments have suggested [1],[2] that this driver
needs to rework how queue resources are managed and reconfigured
so that we don't do a full driver reset and to better handle
potential allocation failures.  This patchset is intended to
address those comments.

The first few patches clean some general issues and
simplify some of the memory structures.  The last 4 patches
specifically address queue parameter changes without a full
ionic_stop()/ionic_open().

[1] https://lore.kernel.org/netdev/20200706103305.182bd727@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/
[2] https://lore.kernel.org/netdev/20200724.194417.2151242753657227232.davem@davemloft.net/

v3: use PTR_ALIGN without typecast
    fix up Neel's attribution

v2: use PTR_ALIGN
    recovery if netif_set_real_num_tx/rx_queues fails
    less racy queue bring up after reconfig
    common-ize the reconfig queue stop and start
====================

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

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