diff options
| author | Michael J. Ruhl <michael.j.ruhl@intel.com> | 2018-08-16 09:04:22 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-09-01 15:13:38 +0300 |
| commit | a2f7bbdc2dba0e4c82a9243a64931aa81c0c28cf (patch) | |
| tree | 7971c809605dd7e66a63845158da97377ec1f23b /drivers/infiniband/hw/hfi1/file_ops.c | |
| parent | e63bb50d1994b71f97b40077ddec46a7354197a0 (diff) | |
| download | linux-a2f7bbdc2dba0e4c82a9243a64931aa81c0c28cf.tar.xz | |
IB/hfi1: Rework the IRQ API to be more flexible
The current IRQ API is an all or nothing interface. This has two
problems:
1. All IRQs are enabled regardless of use
2. Moving from general interrupt to MSIx handling is difficult
Introduce a new API to enable/disable specific IRQs or a range of IRQs.
Do not enable and disable all IRQs in one step.
Rework various modules to enable/disable IRQs when needed.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Sadanand Warrier <sadanand.warrier@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/file_ops.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/file_ops.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index 1fc75647e47b..0b669475349e 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -639,6 +639,9 @@ static int hfi1_file_close(struct inode *inode, struct file *fp) hfi1_cdbg(PROC, "closing ctxt %u:%u", uctxt->ctxt, fdata->subctxt); + set_intr_bits(dd, IS_RCVURGENT_START + uctxt->ctxt, + IS_RCVURGENT_START + uctxt->ctxt, false); + flush_wc(); /* drain user sdma queue */ hfi1_user_sdma_free_queues(fdata, uctxt); @@ -1217,6 +1220,10 @@ static int setup_base_ctxt(struct hfi1_filedata *fd, fd->uctxt = uctxt; hfi1_rcd_get(uctxt); + /* Enable the Urgent IRQ for this user context */ + set_intr_bits(dd, IS_RCVURGENT_START + uctxt->ctxt, + IS_RCVURGENT_START + uctxt->ctxt, true); + done: if (uctxt->subctxt_cnt) { /* |