src-test2/sys/dev/nvme, branch release/9.2.0

MFC r253476:

2013-07-24T22:48:29Z

Add message when nvd disks are attached and detached. As part of this commit, add an nvme_strvis() function which borrows heavily from cam_strvis(). This will allow stripping of leading/trailing whitespace and also handle unprintable characters in model/serial numbers. This function goes into a new nvme_util.c file which is used by both the driver and nvmecontrol. Approved by: re (kib) Sponsored by: Intel

MFC r253474:

2013-07-24T22:46:27Z

Fix nvme(4) and nvd(4) to support non 512-byte sector sizes. Recent testing with QEMU that has variable sector size support for NVMe uncovered some of these issues. Chatham prototype boards supported only 512 byte sectors. Approved by: re (kib) Sponsored by: Intel

MFC r253438:

2013-07-24T22:42:00Z

Use pause() instead of DELAY() when polling for completion of admin commands during controller initialization. DELAY() does not work here during config_intrhook context - we need to explicitly relinquish the CPU for the admin command completion to get processed. Approved by: re (kib) Sponsored by: Intel

MFC r253437:

2013-07-24T22:40:34Z

Define constants for the lengths of the serial number, model number and firmware revision in the controller's identify structure. Also modify consumers of these fields to ensure they only use the specified number of bytes for their respective fields. Approved by: re (kib) Sponsored by: Intel

MFC r253209:

2013-07-15T15:38:16Z

Fix a poorly worded comment in nvme(4). Approved by: re (kib)

MFC r253113:

2013-07-12T22:08:24Z

Add comment explaining why CACHE_LINE_SIZE is defined in nvme_private.h if not already defined elsewhere. Approved by: re (kib)

MFC r253112:

2013-07-12T22:07:33Z

Update copyright dates. Approved by: re (kib)

MFC r253108:

2013-07-12T22:06:17Z

Do not retry failed async event requests. Approved by: re (kib)

MFC r253107:

2013-07-12T22:05:17Z

Add pci_enable_busmaster() and pci_disable_busmaster() calls in nvme_attach() and nvme_detach() respectively. Approved by: re (kib)

MFC r252278:

2013-07-04T00:16:43Z

Add firmware replacement and activation support to nvmecontrol(8) through a new firmware command. NVMe controllers may support up to 7 firmware slots for storing of different firmware revisions. This new firmware command supports firmware replacement (i.e. firmware download) with or without immediate activation, or activation of a previously stored firmware image. It also supports selection of the firmware slot during replacement operations, using IDENTIFY information from the controller to check that the specified slot is valid. Newly activated firmware does not take effect until the new controller reset, either via a reboot or separate 'nvmecontrol reset' command to the same controller. Submitted by: Joe Golio Obtained from: EMC / Isilon Storage Division