src/sys/dev/ath/if_ath_debug.c, branch release/13.1.0

sys/dev: further adoption of SPDX licensing ID tags.

2017-11-27T14:52:40Z

Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.

Pull in r267961 and r267973 again. Fix for issues reported will follow.

2014-06-28T03:56:17Z

Revert r267961, r267973:

2014-06-27T22:05:21Z

These changes prevent sysctl(8) from returning proper output, such as: 1) no output from sysctl(8) 2) erroneously returning ENOMEM with tools like truss(1) or uname(1) truss: can not get etype: Cannot allocate memory

Extend the meaning of the CTLFLAG_TUN flag to automatically check if

2014-06-27T16:33:43Z

there is an environment variable which shall initialize the SYSCTL during early boot. This works for all SYSCTL types both statically and dynamically created ones, except for the SYSCTL NODE type and SYSCTLs which belong to VNETs. A new flag, CTLFLAG_NOFETCH, has been added to be used in the case a tunable sysctl has a custom initialisation function allowing the sysctl to still be marked as a tunable. The kernel SYSCTL API is mostly the same, with a few exceptions for some special operations like iterating childrens of a static/extern SYSCTL node. This operation should probably be made into a factored out common macro, hence some device drivers use this. The reason for changing the SYSCTL API was the need for a SYSCTL parent OID pointer and not only the SYSCTL parent OID list pointer in order to quickly generate the sysctl path. The motivation behind this patch is to avoid parameter loading cludges inside the OFED driver subsystem. Instead of adding special code to the OFED driver subsystem to post-load tunables into dynamically created sysctls, we generalize this in the kernel. Other changes: - Corrected a possibly incorrect sysctl name from "hw.cbb.intr_mask" to "hw.pcic.intr_mask". - Removed redundant TUNABLE statements throughout the kernel. - Some minor code rewrites in connection to removing not needed TUNABLE statements. - Added a missing SYSCTL_DECL(). - Wrapped two very long lines. - Avoid malloc()/free() inside sysctl string handling, in case it is called to initialize a sysctl from a tunable, hence malloc()/free() is not ready when sysctls from the sysctl dataset are registered. - Bumped FreeBSD version to indicate SYSCTL API change. MFC after: 2 weeks Sponsored by: Mellanox Technologies

TX EDMA debugging fixes:

2012-11-05T07:08:45Z

* Do the calculation for each ath_buf, rather than just the first * Correct the calculation in the first place.

Add a debug method to dump the EDMA TX status descriptor contents out.

2012-11-03T04:53:44Z

This requires some HAL API changes to be useful, as there's no way right now to pull out the TX status descriptor contents.

Debugging output fixes:

2012-09-24T19:48:41Z

* use the correct frame status - although the completion descriptor is the _last_ in the frame/aggregate, the status is currently stored in the _first_ buffer. * Print out ath_buf specific fields once, not per descriptor in an ath_buf.

Only print the descriptor contents!

2012-08-27T23:27:41Z

Found by: magical CLANG build environments Submitted by: Sevan

Make sure all of the buffers are printed, rather than (n-1).

2012-08-20T05:47:07Z

Extend the TX descriptor debug printing to be properly aware of

2012-08-19T02:22:16Z

EDMA code. * create a new TX EDMA descriptor struct to represent TX EDMA descriptors when doing debugging; * implement an EDMA printing function which: + hardcodes the TX map size to 4 for now; + correctly prints out the number of segments - there's one descriptor for up to 4 buffers (segments), not one for each segment; + print out 4 DS buffer and len pointers; + print out the correct number of DWORDs in the TX descriptor. TODO: * Remove all of the hard-coded stuff. Ew.