From 9eb0432baa150c31222be71f435091ea562f93cf Mon Sep 17 00:00:00 2001 From: Harish Chegondi Date: Mon, 11 Jan 2016 18:30:53 -0500 Subject: [PATCH] staging/hfi1: Move s_sde to read mostly section of hfi1_qp This would reduce L2 cache misses on s_sde in the _hfi1_schedule_send function when invoked from post_send thereby improving performance of post_send. Reviewed-by: Mike Marciniszyn Signed-off-by: Harish Chegondi Signed-off-by: Jubin John Signed-off-by: Doug Ledford --- drivers/staging/rdma/hfi1/verbs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rdma/hfi1/verbs.h b/drivers/staging/rdma/hfi1/verbs.h index 286e468b0479..a163fc275440 100644 --- a/drivers/staging/rdma/hfi1/verbs.h +++ b/drivers/staging/rdma/hfi1/verbs.h @@ -441,6 +441,7 @@ struct hfi1_qp { struct hfi1_swqe *s_wq; /* send work queue */ struct hfi1_mmap_info *ip; struct ahg_ib_header *s_hdr; /* next packet header to send */ + struct sdma_engine *s_sde; /* current sde */ /* sc for UC/RC QPs - based on ah for UD */ u8 s_sc; unsigned long timeout_jiffies; /* computed from timeout */ @@ -506,7 +507,6 @@ struct hfi1_qp { struct hfi1_swqe *s_wqe; struct hfi1_sge_state s_sge; /* current send request data */ struct hfi1_mregion *s_rdma_mr; - struct sdma_engine *s_sde; /* current sde */ u32 s_cur_size; /* size of send packet in bytes */ u32 s_len; /* total length of s_sge */ u32 s_rdma_read_len; /* total length of s_rdma_read_sge */ -- 2.20.1