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 -- 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
