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authorGuoqing Jiang <guoqing.jiang@linux.dev>2023-12-03 17:26:53 +0800
committerJason Gunthorpe <jgg@nvidia.com>2023-12-04 20:13:30 -0400
commit51ac45a6636221d94e0b840cb8dd3d08b3622d64 (patch)
tree34f39bfe621d6fe77a4535482b3929fbead3858e /drivers/infiniband
parent84de14baf81675a98dc0fe617a93eacf9a417de3 (diff)
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 <bmt@zurich.ibm.com> Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/sw/siw/siw.h6
1 files changed, 3 insertions, 3 deletions
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 */