diff options
| author | Dean Luick | 2015-10-26 15:28:35 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2015-10-27 09:19:22 +0100 |
| commit | b421922e66db43ffccb28a7df7c44263a917ba63 (patch) | |
| tree | cce4e8cb44446bb9a23100e53a2caf69dbde66f7 /drivers/staging/rdma/hfi1/chip.c | |
| parent | staging/rdma/hfi1: Reset firmware instead of reloading Sbus (diff) | |
| download | kernel-qcow2-linux-b421922e66db43ffccb28a7df7c44263a917ba63.tar.gz kernel-qcow2-linux-b421922e66db43ffccb28a7df7c44263a917ba63.tar.xz kernel-qcow2-linux-b421922e66db43ffccb28a7df7c44263a917ba63.zip | |
staging/rdma/hfi1: Add a schedule in send thread
When under heavy load, the send handler can run too long without allowing other
tasks to run. Add a conditional resched to break this up.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rdma/hfi1/chip.c')
| -rw-r--r-- | drivers/staging/rdma/hfi1/chip.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c index a898d3eed888..52a75a611148 100644 --- a/drivers/staging/rdma/hfi1/chip.c +++ b/drivers/staging/rdma/hfi1/chip.c @@ -1530,6 +1530,14 @@ static u64 access_sw_kmem_wait(const struct cntr_entry *entry, return dd->verbs_dev.n_kmem_wait; } +static u64 access_sw_send_schedule(const struct cntr_entry *entry, + void *context, int vl, int mode, u64 data) +{ + struct hfi1_devdata *dd = (struct hfi1_devdata *)context; + + return dd->verbs_dev.n_send_schedule; +} + #define def_access_sw_cpu(cntr) \ static u64 access_sw_cpu_##cntr(const struct cntr_entry *entry, \ void *context, int vl, int mode, u64 data) \ @@ -1720,6 +1728,8 @@ static struct cntr_entry dev_cntrs[DEV_CNTR_LAST] = { access_sw_pio_wait), [C_SW_KMEM_WAIT] = CNTR_ELEM("KmemWait", 0, 0, CNTR_NORMAL, access_sw_kmem_wait), +[C_SW_SEND_SCHED] = CNTR_ELEM("SendSched", 0, 0, CNTR_NORMAL, + access_sw_send_schedule), }; static struct cntr_entry port_cntrs[PORT_CNTR_LAST] = { |