From 51ac45a6636221d94e0b840cb8dd3d08b3622d64 Mon Sep 17 00:00:00 2001 From: Guoqing Jiang Date: Sun, 3 Dec 2023 17:26:53 +0800 Subject: RDMA/siw: Reduce memory usage of struct siw_rx_stream We can reduce the memory of the struct by move some of it's member. Before, /* size: 144, cachelines: 3, members: 17 */ /* sum members: 124, holes: 3, sum holes: 12 */ /* sum bitfield members: 7 bits (0 bytes) */ /* padding: 7 */ /* bit_padding: 1 bits */ After /* size: 128, cachelines: 2, members: 17 */ /* padding: 3 */ /* bit_padding: 1 bits */ Link: https://lore.kernel.org/r/20231203092655.28102-3-guoqing.jiang@linux.dev Acked-by: Bernard Metzler Signed-off-by: Guoqing Jiang Signed-off-by: Jason Gunthorpe --- drivers/infiniband/sw/siw/siw.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/infiniband/sw/siw') diff --git a/drivers/infiniband/sw/siw/siw.h b/drivers/infiniband/sw/siw/siw.h index d14bb965af75..2edba2a864bb 100644 --- a/drivers/infiniband/sw/siw/siw.h +++ b/drivers/infiniband/sw/siw/siw.h @@ -288,10 +288,11 @@ struct siw_rx_stream { int skb_offset; /* offset in skb */ int skb_copied; /* processed bytes in skb */ + enum siw_rx_state state; + union iwarp_hdr hdr; struct mpa_trailer trailer; - - enum siw_rx_state state; + struct shash_desc *mpa_crc_hd; /* * For each FPDU, main RX loop runs through 3 stages: @@ -313,7 +314,6 @@ struct siw_rx_stream { u64 ddp_to; u32 inval_stag; /* Stag to be invalidated */ - struct shash_desc *mpa_crc_hd; u8 rx_suspend : 1; u8 pad : 2; /* # of pad bytes expected */ u8 rdmap_op : 4; /* opcode of current frame */ -- cgit v1.2.3