src-test2/sys/dev/age, branch release/11.0.0

sys/dev: extend use of the howmany() macro when available.

2016-04-26T15:03:15Z

We have a howmany() macro in the header that is convenient to re-use as it makes things easier to read.

sys/dev: use our nitems() macro when it is avaliable through param.h.

2016-04-19T23:37:24Z

No functional change, only trivial cases are done in this sweep, Drivers that can get further enhancements will be done independently. Discussed in: freebsd-current

Fix variable assignment.

2016-02-18T01:24:10Z

Found by: PVS-Studio

Mechanically convert to if_inc_counter().

2014-09-18T21:01:41Z

Use define from if_var.h to access a field inside struct if_data,

2014-08-30T19:55:54Z

that resides in struct ifnet. Sponsored by: Nginx, Inc.

Fix various NIC drivers to properly cleanup static DMA resources.

2014-06-11T14:53:58Z

In particular, don't check the value of the bus_dma map against NULL to determine if either bus_dmamem_alloc() or bus_dmamap_load() succeeded. Instead, assume that bus_dmamap_load() succeeeded (and thus that bus_dmamap_unload() should be called) if the bus address for a resource is non-zero, and assume that bus_dmamem_alloc() succeeded (and thus that bus_dmamem_free() should be called) if the virtual address for a resource is not NULL. In many cases these bugs could result in leaks when a driver was detached. Reviewed by: yongari MFC after: 2 weeks

Increase the number of TX DMA segments from 32 to 35. It turned

2014-03-31T01:54:59Z

out 32 is not enough to support a full sized TSO packet. While I'm here fix a long standing bug introduced in r169632 in bce(4) where it didn't include L2 header length of TSO packet in the maximum DMA segment size calculation. In collaboration with: rmacklem MFC after: 2 weeks

The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare

2013-10-26T17:58:36Z

to this event, adding if_var.h to files that do need it. Also, include all includes that now are included due to implicit pollution via if_var.h Sponsored by: Netflix Sponsored by: Nginx, Inc.

Be sure to actually decrement the "count" parameter for each processed

2013-06-17T22:59:47Z

descriptor so that we return when the threshold has been reached. Reviewed by: yongari MFC after: 1 week

Rework jumbo frame handling. QAC confirmed that the controller

2013-02-05T00:37:45Z

requires 8 bytes alignment on RX buffer. Given that non-jumbo frame works on any alignments I guess this DMA limitation for RX buffer could be jumbo frame specific one. Also I'm not sure whether this DMA limitation is related with 64bit DMA. Previously age(4) disabled 64bit DMA addressing due to silent data corruption. So we may need more testing on re-enabling 64bit DMA in future. While I'm here, change mbuf chaining algorithm to use fixed sized buffer and force software checksum if controller reports length error. According to QAC, RFD is not updated at all for jumbo frame so it works just like alc(4) controllers. This change also added alignment fixup for strict alignment architectures. Because I'm not aware of any non-x86 machines that use age(4) controllers it's just for completeness at this moment. Wit this change, jumbo frame should work with age(4). Tested by: Christian Gusenbauer < c47g <> gmx dot at > MFC after: 1 week