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authorWen Gu <guwen@linux.alibaba.com>2022-07-14 12:44:02 +0300
committerDavid S. Miller <davem@davemloft.net>2022-07-18 13:19:17 +0300
commit4bc5008e4387106215b50ae1a4ac2467455725ca (patch)
treea4cae8948e6682f0f02f167f7b7d17799f84c025 /include
parent0ef69e788411cba2af017db731a9fc62d255e9ac (diff)
downloadlinux-4bc5008e4387106215b50ae1a4ac2467455725ca.tar.xz
net/smc: Introduce a sysctl for setting SMC-R buffer type
This patch introduces the sysctl smcr_buf_type for setting the type of SMC-R sndbufs and RMBs. Valid values includes: - SMCR_PHYS_CONT_BUFS, which means use physically contiguous buffers for better performance and is the default value. - SMCR_VIRT_CONT_BUFS, which means use virtually contiguous buffers in case of physically contiguous memory is scarce. - SMCR_MIXED_BUFS, which means first try to use physically contiguous buffers. If not available, then use virtually contiguous buffers. Signed-off-by: Wen Gu <guwen@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/netns/smc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netns/smc.h b/include/net/netns/smc.h
index e5389eeaf8bd..2adbe2b245df 100644
--- a/include/net/netns/smc.h
+++ b/include/net/netns/smc.h
@@ -18,5 +18,6 @@ struct netns_smc {
struct ctl_table_header *smc_hdr;
#endif
unsigned int sysctl_autocorking_size;
+ unsigned int sysctl_smcr_buf_type;
};
#endif