Hello Paul, > Dear Raghava, dear Linux folks, > > > Using a PMC Adaptec HBA 1000-8e with latest Linux, it only initializes > in sync mode, instead of async mode.
The patches that enable async mode in HBA 1000-8e , have been included in the James Bottomley's linux-scsi Branch and are on track be Included into Linux 4.11. https://git.kernel.org/cgit/linux/kernel/git/jejb/scsi.git/ > ``` > $ git describe --tag > v4.10-rc8-47-g0722f57bf > $ dmesg > [ 21.359635] Adaptec aacraid driver 1.2-1[41066]-ms > [ 21.360017] aacraid 0000:04:00.0: can't disable ASPM; OS doesn't have > ASPM control > [ 21.363987] AAC0: Async. mode not supported by current driver, sync. > mode enforced. > [ 21.363987] Please update driver to get full performance. > [ 21.364949] AAC0: kernel 1.2-0[0] Nov 5 2015 > [ 21.365275] AAC0: monitor 0.0-0[0] > [ 21.371382] AAC0: bios 0.13-209[32000] > [ 21.371711] AAC0: serial 10F447 > [ 21.372035] AAC0: Non-DASD support enabled. > [ 21.372360] AAC0: 64bit support enabled. > [ 21.372688] AAC0: 64 Bit DAC enabled > […] > $ git grep 'AAC_DRIVER_BUILD 41066' > drivers/scsi/aacraid/aacraid.h:# define AAC_DRIVER_BUILD 41066 > ``` > > Searching the vendor Web site, there is *Linux Driver Source > 1.2.1-53005* available for download [1]. The latest upstream driver version is 50740. We will be reaching version 53005 in couple of patch sets ( ~ 3). http://git.kernel.org/cgit/linux/kernel/git/jejb/scsi.git/commit/?id=96f6a6134766de0d42a98c7758736dde16e0add5 > How does the upstream process work? Is there a git repository somewhere > from Microsemi? Are the patches already up for review? (I didn’t find them.) We try to push out patch sets to kernel.org for every major driver release we make. Usually they go into the sub component maintainers branch (linux-scsi ) , which is then pushed out to Linus when the merge window for opens (currently the merge window for 4.10 is closed , barring fixes). So Linux version 4.11 should have full async support and more for HBA1000-8e. We do not maintain a git repository unfortunately , but we do release the source code for every release as you indicated. For further reference the patches are sent out in the scsi mailing list linux-scsi@vger.kernel.org , the archive is here http://marc.info/?l=linux-scsi&r=1&w=2 . Hope I cleared up your doubts. Please do reach out if you have other concerns or questions. Thank you, Raghava Aditya > [1] > https://storage.microsemi.com/en-us/speed/raid/aac/linux/aacraid-linux- > src-1_2_1-53005_tgz.php
