diff options
| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2020-01-06 08:41:51 -0500 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-01-10 10:57:16 -0400 |
| commit | 01c7fc501b8f13a1c5d126d6015ef0908527516e (patch) | |
| tree | 79957026948cc6f22fc20cd6a3e176c0a9877b89 /drivers/infiniband/hw/hfi1/init.c | |
| parent | de730f71919b1ade900a6c8a91a9fe7011b1b53b (diff) | |
IB/hfi1: Add fast and slow handlers for receive context
This patch eliminate special cases by adding a fast_handler member to the
receive context and changes to the fast handler as specified in the new
variable. Initialize the variable as soon as the setting for dma tail is
known when the context is created.
Setting fast path is called every time when any context has entered slow
path. Add function to check if contexts is using fast path and do not set
fast path when it is already done to improve RCD fastpath setting.
Link: https://lore.kernel.org/r/20200106134150.119356.87558.stgit@awfm-01.aw.intel.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/init.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/init.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index 81c35516bf40..925f75f94487 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -150,6 +150,11 @@ static int hfi1_create_kctxt(struct hfi1_devdata *dd, /* Control context must use DMA_RTAIL */ if (rcd->ctxt == HFI1_CTRL_CTXT) rcd->flags |= HFI1_CAP_DMA_RTAIL; + rcd->fast_handler = get_dma_rtail_setting(rcd) ? + handle_receive_interrupt_dma_rtail : + handle_receive_interrupt_nodma_rtail; + rcd->slow_handler = handle_receive_interrupt; + hfi1_set_seq_cnt(rcd, 1); rcd->sc = sc_alloc(dd, SC_ACK, rcd->rcvhdrqentsize, dd->node); |