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Commit 9eb0432b authored by Harish Chegondi's avatar Harish Chegondi Committed by Doug Ledford
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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: default avatarMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: default avatarHarish Chegondi <harish.chegondi@intel.com>
Signed-off-by: default avatarJubin John <jubin.john@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 349ac71f

drivers/staging/rdma/hfi1/verbs.h

+1 −1
Original line number Diff line number Diff line
@@ -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 */