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294958 |
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27-Jan-2016 |
marius |
Sync the e1000 drivers with what's in head as of r294327, modulo parts
that don't apply to stable/10 (driver API, if_inc_counter(), RSS changes
etc.) and modulo r287465 (which reportedly breaks igb(4)), i. e. assorted
fixes and improvements only:
o MFC r267385 (partial):
- Don't compare bus_dma map pointers for static DMA allocations against
NULL to determine if bus_dmamap_unload() or bus_dmamem_free() should be
called. Instead, check the associated bus and virtual addresses.
- Don't clear static DMA maps to NULL.
o MFC r284933:
Delete the refernce to VLAN handling being disabled by default. This is
no longer the case. [1]
o MFC r285639:
Add an adapter CORE lock in the DDB hook em_dump_queue to avoid WITNESS
panic in em_init_locked() while debugging.
o MFC r285879:
- Remove unused txd_saved.
- Intialize txd_upper, txd_lower and txd_used at declaration.
o MFC r286162:
Free mbufs when busdma loading fails.
o MFC r286829:
Add capability to disable CRC stripping as it breaks IPMI/BMC capabilities
on certain adatpers. [2]
o MFC r286831: [3]
- Increase EM_MAX_SCATTER to 64 such that the size of em_xmit()::
segs[EM_MAX_SCATTER] doesn't get overrun by things like NFS that can
and do shove more than 32 segs when being used with em(4) and TSO4.
- Update tso handling code in em_xmit() with update from jhb@
- Set if_hw_tsomax, if_hw_tsomaxsegcount and if_hw_tsomaxsegsize to
appropriate values.
- Define a TSO workaround "magic" number of 4 that is used to avoid an
alignment issue in hardware.
- Change a couple of integer values that were used as booleans to actual
bool types.
- Ensure that em_enable_intr() enables the appropriate mask of interrupts
and not just a hardcoded define of values.
o MFC r286832:
e1000/if_lem.c bump to 1.1.0
o MFC r286833:
Bump all copywrite dates to 2015.
o MFC r287112:
Style/whitespace cleanup in shared/common code.
o MFC r293331:
- Switch em(4) to the extended RX descriptor format.
- Split rxbuffer and txbuffer apart to support the new RX descriptor
format structures. Move rxbuffer manipulation to em_setup_rxdesc() to
unify the new behavior changes.
- Add a RSSKEYLEN macro for help in generating the RSSKEY data structures
in the card.
- Change em_receive_checksum() to process the new rxdescriptor format
status bit.
o MFC r293332:
Disable the reuse of checksum offload context descriptors in the case
of multiple queues in em(4). Document errata in the code.
o MFC r293854:
Given that em(4), lem(4) and igb(4) hardware doesn't require the
alignment guarantees provided by m_defrag(9), use m_collapse(9)
instead for performance reasons.
While at it, sanitize the statistics softc members, i. e. retire
unused ones and add SYSCTL nodes missing for actually used ones.
PR: 118693 [1], 161277 [2], 195078 [3], 199174 [3], 200221 [3]
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