From: Ralph Campbell Date: Wed, 21 Jul 2010 22:46:11 +0000 (+0000) Subject: IB/qib: Set cfgctxts to number of CPUs by default X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0502f94c62be79d1f4ae6f53ceaefde67ef3cea2;p=mv-sheeva.git IB/qib: Set cfgctxts to number of CPUs by default Up to now, we have set the number of available user contexts based on the number of hardware contexts which is set according to the number of available CPUs. This was fine since most CPUs had a power of two number of cores and the chip supported 4, 8, or 16 user contexts. Now that some systems have 12 cores, the default isn't optimal and should be set to 12 even though 16 hardware contexts need to be enabled. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index fc14ef8e559..584d443b533 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -5864,7 +5864,7 @@ static void write_7322_initregs(struct qib_devdata *dd) * Doesn't clear any of the error bits that might be set. */ val = TIDFLOW_ERRBITS; /* these are W1C */ - for (i = 0; i < dd->ctxtcnt; i++) { + for (i = 0; i < dd->cfgctxts; i++) { int flow; for (flow = 0; flow < NUM_TIDFLOWS_CTXT; flow++) qib_write_ureg(dd, ur_rcvflowtable+flow, val, i); diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c index a873dd596e8..f1d16d3a01f 100644 --- a/drivers/infiniband/hw/qib/qib_init.c +++ b/drivers/infiniband/hw/qib/qib_init.c @@ -93,7 +93,7 @@ unsigned long *qib_cpulist; void qib_set_ctxtcnt(struct qib_devdata *dd) { if (!qib_cfgctxts) - dd->cfgctxts = dd->ctxtcnt; + dd->cfgctxts = dd->first_user_ctxt + num_online_cpus(); else if (qib_cfgctxts < dd->num_pports) dd->cfgctxts = dd->ctxtcnt; else if (qib_cfgctxts <= dd->ctxtcnt)