| commit | 0e589b85686434c5a4deb4cf3514d3e9f02df367 | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Mon, 19 Dec 2016 00:45:06 +0000 (18 16:45 -0800) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Mon, 19 Dec 2016 18:20:49 +0000 (19 10:20 -0800) | ||
| tree | f3830cf2647e4b8ec0ce2fd0ff29cfc292a27d64 | treesnapshot (tar.gz zip) |
| parent | 499dbb9a4526dc66764051c80c57dfe0815696e6 | commitdiff |
ahci - Adjust a few things
* These changes have no effect on known AHCI devices but are a good idea.
* As suggested in the AHCI spec 10.1.2, zero out the memory pointed to
by the FB and CL port dma addresses.
* Write to FB before FBU, and to CLB before CLBU, just in case hardware
clears the upper bits on a write to the lower bits (no known AHCI
hardware does this but its something that is commonly implemented in
other hw so...).
* Improved I/O error reporting.
* These changes have no effect on known AHCI devices but are a good idea.
* As suggested in the AHCI spec 10.1.2, zero out the memory pointed to
by the FB and CL port dma addresses.
* Write to FB before FBU, and to CLB before CLBU, just in case hardware
clears the upper bits on a write to the lower bits (no known AHCI
hardware does this but its something that is commonly implemented in
other hw so...).
* Improved I/O error reporting.