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]

1 files changed, 9 insertions, 9 deletions

diff --git a/sys/dev/e1000/e1000_api.h b/sys/dev/e1000/e1000_api.h
index a2ffa16..074197b 100644
--- a/sys/dev/e1000/e1000_api.h
+++ b/sys/dev/e1000/e1000_api.h
@@ -1,6 +1,6 @@
 /******************************************************************************
 
-  Copyright (c) 2001-2014, Intel Corporation 
+  Copyright (c) 2001-2015, Intel Corporation 
   All rights reserved.
   
   Redistribution and use in source and binary forms, with or without 
@@ -124,14 +124,14 @@ u32  e1000_translate_register_82542(u32 reg);
  * TBI_ACCEPT macro definition:
  *
  * This macro requires:
- *      adapter = a pointer to struct e1000_hw
+ *      a = a pointer to struct e1000_hw
  *      status = the 8 bit status field of the Rx descriptor with EOP set
- *      error = the 8 bit error field of the Rx descriptor with EOP set
+ *      errors = the 8 bit error field of the Rx descriptor with EOP set
  *      length = the sum of all the length fields of the Rx descriptors that
  *               make up the current frame
  *      last_byte = the last byte of the frame DMAed by the hardware
- *      max_frame_length = the maximum frame length we want to accept.
- *      min_frame_length = the minimum frame length we want to accept.
+ *      min_frame_size = the minimum frame length we want to accept.
+ *      max_frame_size = the maximum frame length we want to accept.
  *
  * This macro is a conditional that should be used in the interrupt
  * handler's Rx processing routine when RxErrors have been detected.
@@ -157,10 +157,10 @@ u32  e1000_translate_register_82542(u32 reg);
 	 (((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \
 	 ((last_byte) == CARRIER_EXTENSION) && \
 	 (((status) & E1000_RXD_STAT_VP) ? \
-	  (((length) > (min_frame_size - VLAN_TAG_SIZE)) && \
-	  ((length) <= (max_frame_size + 1))) : \
-	  (((length) > min_frame_size) && \
-	  ((length) <= (max_frame_size + VLAN_TAG_SIZE + 1)))))
+	  (((length) > ((min_frame_size) - VLAN_TAG_SIZE)) && \
+	  ((length) <= ((max_frame_size) + 1))) : \
+	  (((length) > (min_frame_size)) && \
+	  ((length) <= ((max_frame_size) + VLAN_TAG_SIZE + 1)))))
 
 #define E1000_MAX(a, b) ((a) > (b) ? (a) : (b))
 #define E1000_DIVIDE_ROUND_UP(a, b)	(((a) + (b) - 1) / (b)) /* ceil(a/b) */