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4bc5008e43
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>
23 lines
569 B
C
23 lines
569 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NETNS_SMC_H__
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#define __NETNS_SMC_H__
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#include <linux/mutex.h>
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#include <linux/percpu.h>
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struct smc_stats_rsn;
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struct smc_stats;
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struct netns_smc {
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/* per cpu counters for SMC */
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struct smc_stats __percpu *smc_stats;
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/* protect fback_rsn */
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struct mutex mutex_fback_rsn;
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struct smc_stats_rsn *fback_rsn;
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bool limit_smc_hs; /* constraint on handshake */
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#ifdef CONFIG_SYSCTL
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struct ctl_table_header *smc_hdr;
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#endif
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unsigned int sysctl_autocorking_size;
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unsigned int sysctl_smcr_buf_type;
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};
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#endif
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