On Sun, Sep 16, 2012 at 2:28 PM, Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx> wrote: > On Sun, 2012-09-16 at 12:53 -0400, Daniel Lane wrote: >> On Sat, Sep 15, 2012 at 9:52 PM, Nicholas A. Bellinger >> <nab@xxxxxxxxxxxxxxx> wrote: >> > On Fri, 2012-09-14 at 23:09 -0400, Daniel Lane wrote: >> >> On Fri, Sep 14, 2012 at 8:56 PM, Daniel Lane <dracodan@xxxxxxxxx> wrote: > > <SNIP> > >> >> Part of this doesn't sound right, here is what the linux-iscsi site >> >> says for support: >> >> "QLogic 2400 Series (single-port QLx246x), 4GBFC" >> >> >> >> That first x can be an E for PCI-Express or an A for PCI-X, so is it >> >> the 236x cards that support was removed for? Is the info in the wiki >> >> a mistake? >> >> >> > >> > The bulk of what got removed was supporting the really old >> > !IS_FWI2_CAPABLE cases. From your experience so far it sounds like the >> > 236x series target mode silicon might be close enough to semi-easily >> > forward-port legacy support to mainline code, preferably without all of >> > the extra !IS_FWI2_CAPABLE cruft required for <= 22xx silicon. >> > >> > I'm not sure where the line between ~IS_FWI2_CAPABLE is for 236x series, >> > but I would imagine the Qlogic/Linux folks would know. >> > >> > So the commit from early this year to drop can be found in the >> > historical lio-core-2.6.git tree here: >> > >> > qla2xxx: Drop legacy pre 24xx target mode support >> > http://git.kernel.org/?p=linux/kernel/git/nab/lio-core-2.6.git;a=commitdiff;h=db763cc35ca816d01cc25ee5f488f8b43bb74af5 >> > >> > Your more than welcome to try a forward-port (ask questions on the list) >> > of this code to suit your needs. >> > >> >> Thanks for the info, unfortunately I still have a few questions. The >> comment on the commit you sent has the erroneous line of "QLA 24xx >> (PCI-E) adapters for mainline target LLD code." Problem is that the >> QLA cards aren't PCI-E, they're PCI-X. I see that the wiki has been >> updated as of yesterday to reflect that, but I wanted to confirm this >> since PCI-X QLA2462 cards are roughly $30 on ebay where PCI-E QLE2462 >> cards are roughly $130. > > AFAICT there is no difference at the code level for target mode support > within qla_target.c between PCI-e and PCI-X 24xx series adapters. > > The Qlogic folks who are CC'ed here will know for sure. > >> Another thing I just noticed that could be an >> even bigger issue is that the article says "QLogic 2400 Series >> (single-port QLE246x), 4GBFC", key word being single-port... Can you >> confirm that only single port 2400 series cards are supported? The >> price of 25xx cards is completely out of the question for a lab setup, >> as it is this has already gone from a cheap alternative to iSCSI to an >> impractical expense. If indeed only single port cards are supported, >> would it be possible to use two separate cards? Also, the wiki should >> be updated to say "QLogic 2400 Series (single-port QLE2460), 4GBFC". >> > > Both single port (1x) and multi port (2x, 4x) are fully supported within > qla_target.c + tcm_qla2xxx code. > > --nab > GREAT!!! Thank you again for all your help and the extremely quick and friendly responses. Dan -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
