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| author |   Wen Gu <guwen@linux.alibaba.com> | 2022-07-14 17:44:02 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-07-18 11:19:17 +0100 |
| commit | 4bc5008e4387106215b50ae1a4ac2467455725ca (patch) | |
| tree | a4cae8948e6682f0f02f167f7b7d17799f84c025 /net/smc/smc_core.h | |
| parent | net/smc: optimize for smc_sndbuf_sync_sg_for_device and smc_rmb_sync_sg_for_cpu (diff) | |
| download | linux-dev-4bc5008e4387106215b50ae1a4ac2467455725ca.tar.xz linux-dev-4bc5008e4387106215b50ae1a4ac2467455725ca.zip | |
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 'net/smc/smc_core.h')
| -rw-r--r-- | net/smc/smc_core.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h index 46ddec5f1edc..7652dfa783ff 100644 --- a/net/smc/smc_core.h +++ b/net/smc/smc_core.h @@ -217,6 +217,12 @@ enum smc_lgr_type { /* redundancy state of lgr */ SMC_LGR_ASYMMETRIC_LOCAL, /* local has 1, peer 2 active RNICs */ }; +enum smcr_buf_type { /* types of SMC-R sndbufs and RMBs */ + SMCR_PHYS_CONT_BUFS = 0, + SMCR_VIRT_CONT_BUFS = 1, + SMCR_MIXED_BUFS = 2, +}; + enum smc_llc_flowtype { SMC_LLC_FLOW_NONE = 0, SMC_LLC_FLOW_ADD_LINK = 2, |