00b69f1d86
The eBPF code is currently reporting error messages through trace events. Trace events are fine for debugging, but they are not to be considered the primary error reporting mechanism, as their output is inaccessible to callers. This adds an "Error **errp" parameter to all methods which have important error scenarios to report to the caller. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/*
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* eBPF RSS header
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*
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* Developed by Daynix Computing LTD (http://www.daynix.com)
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*
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* Authors:
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* Andrew Melnychenko <andrew@daynix.com>
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* Yuri Benditovich <yuri.benditovich@daynix.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_EBPF_RSS_H
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#define QEMU_EBPF_RSS_H
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#include "qapi/error.h"
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#define EBPF_RSS_MAX_FDS 4
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struct EBPFRSSContext {
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void *obj;
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int program_fd;
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int map_configuration;
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int map_toeplitz_key;
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int map_indirections_table;
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/* mapped eBPF maps for direct access to omit bpf_map_update_elem() */
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void *mmap_configuration;
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void *mmap_toeplitz_key;
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void *mmap_indirections_table;
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};
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struct EBPFRSSConfig {
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uint8_t redirect;
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uint8_t populate_hash;
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uint32_t hash_types;
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uint16_t indirections_len;
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uint16_t default_queue;
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} __attribute__((packed));
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void ebpf_rss_init(struct EBPFRSSContext *ctx);
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bool ebpf_rss_is_loaded(struct EBPFRSSContext *ctx);
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bool ebpf_rss_load(struct EBPFRSSContext *ctx, Error **errp);
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bool ebpf_rss_load_fds(struct EBPFRSSContext *ctx, int program_fd,
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int config_fd, int toeplitz_fd, int table_fd,
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Error **errp);
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bool ebpf_rss_set_all(struct EBPFRSSContext *ctx, struct EBPFRSSConfig *config,
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uint16_t *indirections_table, uint8_t *toeplitz_key,
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Error **errp);
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void ebpf_rss_unload(struct EBPFRSSContext *ctx);
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#endif /* QEMU_EBPF_RSS_H */
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