1 .. SPDX-License-Identifier: GPL-2.0
7 /proc/sys/net/smc/* Variables
8 =============================
10 autocorking_size - INTEGER
11 Setting SMC auto corking size:
12 SMC auto corking is like TCP auto corking from the application's
13 perspective of view. When applications do consecutive small
14 write()/sendmsg() system calls, we try to coalesce these small writes
15 as much as possible, to lower total amount of CDC and RDMA Write been
17 autocorking_size limits the maximum corked bytes that can be sent to
18 the under device in 1 single sending. If set to 0, the SMC auto corking
20 Applications can still use TCP_CORK for optimal behavior when they
21 know how/when to uncork their sockets.
25 smcr_buf_type - INTEGER
26 Controls which type of sndbufs and RMBs to use in later newly created
27 SMC-R link group. Only for SMC-R.
29 Default: 0 (physically contiguous sndbufs and RMBs)
33 - 0 - Use physically contiguous buffers
34 - 1 - Use virtually contiguous buffers
35 - 2 - Mixed use of the two types. Try physically contiguous buffers first.
36 If not available, use virtually contiguous buffers then.