linux/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021, Intel Corporation. */

/* advanced RSS configuration ethtool support for iavf */

#include "iavf.h"

/**
 * iavf_fill_adv_rss_ip4_hdr - fill the IPv4 RSS protocol header
 * @hdr: the virtchnl message protocol header data structure
 * @hash_flds: the RSS configuration protocol hash fields
 */
static void
iavf_fill_adv_rss_ip4_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds)
{ … }

/**
 * iavf_fill_adv_rss_ip6_hdr - fill the IPv6 RSS protocol header
 * @hdr: the virtchnl message protocol header data structure
 * @hash_flds: the RSS configuration protocol hash fields
 */
static void
iavf_fill_adv_rss_ip6_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds)
{ … }

/**
 * iavf_fill_adv_rss_tcp_hdr - fill the TCP RSS protocol header
 * @hdr: the virtchnl message protocol header data structure
 * @hash_flds: the RSS configuration protocol hash fields
 */
static void
iavf_fill_adv_rss_tcp_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds)
{ … }

/**
 * iavf_fill_adv_rss_udp_hdr - fill the UDP RSS protocol header
 * @hdr: the virtchnl message protocol header data structure
 * @hash_flds: the RSS configuration protocol hash fields
 */
static void
iavf_fill_adv_rss_udp_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds)
{ … }

/**
 * iavf_fill_adv_rss_sctp_hdr - fill the SCTP RSS protocol header
 * @hdr: the virtchnl message protocol header data structure
 * @hash_flds: the RSS configuration protocol hash fields
 */
static void
iavf_fill_adv_rss_sctp_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds)
{ … }

/**
 * iavf_fill_adv_rss_cfg_msg - fill the RSS configuration into virtchnl message
 * @rss_cfg: the virtchnl message to be filled with RSS configuration setting
 * @packet_hdrs: the RSS configuration protocol header types
 * @hash_flds: the RSS configuration protocol hash fields
 * @symm: if true, symmetric hash is required
 *
 * Returns 0 if the RSS configuration virtchnl message is filled successfully
 */
int
iavf_fill_adv_rss_cfg_msg(struct virtchnl_rss_cfg *rss_cfg,
			  u32 packet_hdrs, u64 hash_flds, bool symm)
{ … }

/**
 * iavf_find_adv_rss_cfg_by_hdrs - find RSS configuration with header type
 * @adapter: pointer to the VF adapter structure
 * @packet_hdrs: protocol header type to find.
 *
 * Returns pointer to advance RSS configuration if found or null
 */
struct iavf_adv_rss *
iavf_find_adv_rss_cfg_by_hdrs(struct iavf_adapter *adapter, u32 packet_hdrs)
{ … }

/**
 * iavf_print_adv_rss_cfg
 * @adapter: pointer to the VF adapter structure
 * @rss: pointer to the advance RSS configuration to print
 * @action: the string description about how to handle the RSS
 * @result: the string description about the virtchnl result
 *
 * Print the advance RSS configuration
 **/
void
iavf_print_adv_rss_cfg(struct iavf_adapter *adapter, struct iavf_adv_rss *rss,
		       const char *action, const char *result)
{ … }