linux-sg2042/drivers/infiniband
Mike Marciniszyn 53ab1c6498 IB/qib: Correct nfreectxts for multiple HCAs
The code that was recently introduced to report the number
of free contexts is flawed for multiple HCAs:

       /* Return the number of free user ports (contexts) available. */
       return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
                dd->first_user_ctxt - (u32)qib_stats.sps_ctxts);

The qib_stats is global to the module, not per HCA, so the code is broken
for multiple HCAs.

This patch adds a qib_devdata field, freectxts, that reflects the free
contexts for this HCA.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Reviewed-by: Ram Vepa <ram.vepa@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-06 09:33:35 -07:00
..
core Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2011-07-22 14:50:12 -07:00
hw IB/qib: Correct nfreectxts for multiple HCAs 2011-10-06 09:33:35 -07:00
ulp Merge branches 'ipoib' and 'iser' into for-next 2011-08-17 10:57:43 -07:00
Kconfig RDMA: Add netlink infrastructure 2011-05-20 11:46:11 -07:00
Makefile IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters 2010-05-23 21:44:54 -07:00