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authorJubin John <jubin.john@intel.com>2016-05-24 12:51:06 -0700
committerDoug Ledford <dledford@redhat.com>2016-05-26 12:21:10 -0400
commitf158486527ebfb4c1fe4dcb69b12479090d66b72 (patch)
tree4ee0889a8d31ba6bbf84f3b6446e2a9def8200c5
parentf6de3d39cfc30387ce7dadb8542e4a635c706670 (diff)
IB/hfi1: Fix pio map initialization
The pio map initialization function is off by 1 causing the last kernel send context that is allocated to not get mapped into the pio map which leads to the last kernel send context not being used by any of the qps. The send context reserved for VL15 is taken care of by setting the scontext variable that is used as the index into the kernel send context array to 1 and does not need to be accounted for in the kernel send context counting loop as it is currently done. Fix the kernel send context counting loop to account for all the allocated send contexts and map all of them to the different VLs. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Jianxin Xiong <jianxin.xiong@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/hw/hfi1/pio.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c
index c67b9ad3fcf4..d5edb1afbb8f 100644
--- a/drivers/infiniband/hw/hfi1/pio.c
+++ b/drivers/infiniband/hw/hfi1/pio.c
@@ -1835,8 +1835,7 @@ int pio_map_init(struct hfi1_devdata *dd, u8 port, u8 num_vls, u8 *vl_scontexts)
struct pio_vl_map *oldmap, *newmap;
if (!vl_scontexts) {
- /* send context 0 reserved for VL15 */
- for (i = 1; i < dd->num_send_contexts; i++)
+ for (i = 0; i < dd->num_send_contexts; i++)
if (dd->send_contexts[i].type == SC_KERNEL)
num_kernel_send_contexts++;
/* truncate divide */