Dear Ahmed,
Thank you for your patch.
Am 18.04.25 um 00:12 schrieb Ahmed Zaki:
Use the new virtchnl2 OP codes to communicate with the Control Plane to
add flow steering filters. We add the basic functionality for ADD/Delete
Minor thing: ADD/Delete are spelled differently.
with TCP/UDP IPv4 only. Support for other OP codes and protocols will be
added later.
Although it seems quite a lot of boilerplate, still for a diffstat of
more than 400 lines, a paragraph about the implementation would be nice
to have.
Standard 'ethtool -N|--config-ntuple' should be used, for example:
# ethtool -N ens801f0d1 flow-type tcp4 src-ip 10.0.0.1 action 6
to route all IPv4/TCP traffic from IP 10.0.0.1 to queue 6.
Is there a way to verify, that the traffic really goes to queue 6?
Reviewed-by: Sridhar Samudrala <[email protected]>
Signed-off-by: Ahmed Zaki <[email protected]>
---
drivers/net/ethernet/intel/idpf/idpf.h | 13 +
.../net/ethernet/intel/idpf/idpf_ethtool.c | 298 +++++++++++++++++-
drivers/net/ethernet/intel/idpf/idpf_lib.c | 5 +
.../net/ethernet/intel/idpf/idpf_virtchnl.c | 104 ++++++
.../net/ethernet/intel/idpf/idpf_virtchnl.h | 6 +
5 files changed, 421 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/intel/idpf/idpf.h
b/drivers/net/ethernet/intel/idpf/idpf.h
index c21903310354..1c791f5ca601 100644
--- a/drivers/net/ethernet/intel/idpf/idpf.h
+++ b/drivers/net/ethernet/intel/idpf/idpf.h
@@ -252,6 +252,12 @@ struct idpf_port_stats {
struct virtchnl2_vport_stats vport_stats;
};
+struct idpf_fsteer_fltr {
+ struct list_head list;
+ u32 loc;
+ unsigned int q_index;
+};
+
/**
* struct idpf_tx_tstamp_stats - Tx timestamp statistics
* @tx_hwtstamp_lock: Lock to protect Tx tstamp stats
@@ -406,6 +412,8 @@ struct idpf_rss_data {
* ethtool
* @user_flags: User toggled config flags
* @mac_filter_list: List of MAC filters
+ * @num_fsteer_fltrs: number of flow steering filters
+ * @flow_steer_list: list of flow steering filters
*
* Used to restore configuration after a reset as the vport will get wiped.
*/
@@ -417,6 +425,8 @@ struct idpf_vport_user_config_data {
u32 num_req_rxq_desc;
DECLARE_BITMAP(user_flags, __IDPF_USER_FLAGS_NBITS);
struct list_head mac_filter_list;
+ u16 num_fsteer_fltrs;
Is there a reason to limit it to u16? `unsigned int` would use the
default “system size”, that is probably also 16.
+ struct list_head flow_steer_list;
};
/**
@@ -878,4 +888,7 @@ int idpf_sriov_configure(struct pci_dev *pdev, int num_vfs);
u8 idpf_vport_get_hsplit(const struct idpf_vport *vport);
bool idpf_vport_set_hsplit(const struct idpf_vport *vport, u8 val);
+int idpf_add_del_fsteer_filters(struct idpf_adapter *adapter,
+ struct virtchnl2_flow_rule_add_del *rule,
+ bool add);
Is it possible to pass the op, so it’s clear what calling the function
does, and one does not have to look up the signature definition?
idpf_modify_fsteer_filters(… , virtchnl2_op op);
#endif /* !_IDPF_H_ */
diff --git a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
index 7a4793749bc5..35e1d5694212 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
@@ -3,6 +3,7 @@
#include "idpf.h"
#include "idpf_ptp.h"
+#include "idpf_virtchnl.h"
/**
* idpf_get_rxnfc - command to get RX flow classification rules
@@ -13,26 +14,312 @@
* Returns Success if the command is supported.
*/
static int idpf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc
*cmd,
- u32 __always_unused *rule_locs)
+ u32 *rule_locs)
{
+ struct idpf_netdev_priv *np = netdev_priv(netdev);
+ struct idpf_vport_user_config_data *user_config;
+ struct idpf_fsteer_fltr *f;
struct idpf_vport *vport;
+ unsigned int cnt = 0;
+ int err = 0;
idpf_vport_ctrl_lock(netdev);
vport = idpf_netdev_to_vport(netdev);
+ user_config = &np->adapter->vport_config[np->vport_idx]->user_config;
switch (cmd->cmd) {
case ETHTOOL_GRXRINGS:
cmd->data = vport->num_rxq;
- idpf_vport_ctrl_unlock(netdev);
-
- return 0;
+ break;
+ case ETHTOOL_GRXCLSRLCNT:
+ cmd->rule_cnt = user_config->num_fsteer_fltrs;
+ cmd->data = idpf_fsteer_max_rules(vport);
+ break;
+ case ETHTOOL_GRXCLSRULE:
+ err = -EINVAL;
+ list_for_each_entry(f, &user_config->flow_steer_list, list)
+ if (f->loc == cmd->fs.location) {
+ cmd->fs.ring_cookie = f->q_index;
+ err = 0;
+ break;
+ }
+ break;
+ case ETHTOOL_GRXCLSRLALL:
+ cmd->data = idpf_fsteer_max_rules(vport);
+ list_for_each_entry(f, &user_config->flow_steer_list, list) {
+ if (cnt == cmd->rule_cnt) {
+ err = -EMSGSIZE;
+ break;
+ }
+ rule_locs[cnt] = f->loc;
+ cnt++;
+ }
+ if (!err)
+ cmd->rule_cnt = user_config->num_fsteer_fltrs;
+ break;
default:
break;
}
idpf_vport_ctrl_unlock(netdev);
- return -EOPNOTSUPP;
+ return err;
+}
+
+static void idpf_fsteer_fill_ipv4(struct virtchnl2_proto_hdrs *hdrs,
+ struct ethtool_rx_flow_spec *fsp)
+{
+ struct iphdr *iph;
+
+ hdrs->proto_hdr[0].hdr_type = cpu_to_le32(VIRTCHNL2_PROTO_HDR_IPV4);
+
+ iph = (struct iphdr *)hdrs->proto_hdr[0].buffer_spec;
+ iph->saddr = fsp->h_u.tcp_ip4_spec.ip4src;
+ iph->daddr = fsp->h_u.tcp_ip4_spec.ip4dst;
+
+ iph = (struct iphdr *)hdrs->proto_hdr[0].buffer_mask;
+ iph->saddr = fsp->m_u.tcp_ip4_spec.ip4src;
+ iph->daddr = fsp->m_u.tcp_ip4_spec.ip4dst;
+}
+
+static void idpf_fsteer_fill_udp(struct virtchnl2_proto_hdrs *hdrs,
+ struct ethtool_rx_flow_spec *fsp,
+ bool v4)
+{
+ struct udphdr *udph, *udpm;
+
+ hdrs->proto_hdr[1].hdr_type = cpu_to_le32(VIRTCHNL2_PROTO_HDR_UDP);
+
+ udph = (struct udphdr *)hdrs->proto_hdr[1].buffer_spec;
+ udpm = (struct udphdr *)hdrs->proto_hdr[1].buffer_mask;
+
+ if (v4) {
+ udph->source = fsp->h_u.udp_ip4_spec.psrc;
+ udph->dest = fsp->h_u.udp_ip4_spec.pdst;
+ udpm->source = fsp->m_u.udp_ip4_spec.psrc;
+ udpm->dest = fsp->m_u.udp_ip4_spec.pdst;
+ } else {
+ udph->source = fsp->h_u.udp_ip6_spec.psrc;
+ udph->dest = fsp->h_u.udp_ip6_spec.pdst;
+ udpm->source = fsp->m_u.udp_ip6_spec.psrc;
+ udpm->dest = fsp->m_u.udp_ip6_spec.pdst;
+ }
+}
+
+static void idpf_fsteer_fill_tcp(struct virtchnl2_proto_hdrs *hdrs,
+ struct ethtool_rx_flow_spec *fsp,
+ bool v4)
+{
+ struct tcphdr *tcph, *tcpm;
+
+ hdrs->proto_hdr[1].hdr_type = cpu_to_le32(VIRTCHNL2_PROTO_HDR_TCP);
+
+ tcph = (struct tcphdr *)hdrs->proto_hdr[1].buffer_spec;
+ tcpm = (struct tcphdr *)hdrs->proto_hdr[1].buffer_mask;
+
+ if (v4) {
+ tcph->source = fsp->h_u.tcp_ip4_spec.psrc;
+ tcph->dest = fsp->h_u.tcp_ip4_spec.pdst;
+ tcpm->source = fsp->m_u.tcp_ip4_spec.psrc;
+ tcpm->dest = fsp->m_u.tcp_ip4_spec.pdst;
+ } else {
+ tcph->source = fsp->h_u.tcp_ip6_spec.psrc;
+ tcph->dest = fsp->h_u.tcp_ip6_spec.pdst;
+ tcpm->source = fsp->m_u.tcp_ip6_spec.psrc;
+ tcpm->dest = fsp->m_u.tcp_ip6_spec.pdst;
+ }
+}
+
+/**
+ * idpf_add_flow_steer - add a Flow Steering filter
+ * @netdev: network interface device structure
+ * @cmd: command to add Flow Steering filter
+ *
+ * Return: 0 on success and negative values for failure
+ */
+static int idpf_add_flow_steer(struct net_device *netdev,
+ struct ethtool_rxnfc *cmd)
+{
+ struct idpf_fsteer_fltr *fltr, *parent = NULL, *f;
+ struct idpf_netdev_priv *np = netdev_priv(netdev);
+ struct idpf_vport_user_config_data *user_config;
+ struct ethtool_rx_flow_spec *fsp = &cmd->fs;
+ struct virtchnl2_flow_rule_add_del *rule;
+ struct idpf_vport_config *vport_config;
+ struct virtchnl2_rule_action_set *acts;
+ struct virtchnl2_flow_rule_info *info;
+ struct virtchnl2_proto_hdrs *hdrs;
+ struct idpf_vport *vport;
+ u32 flow_type, q_index;
+ u16 num_rxq;
+ int err;
+
+ vport = idpf_netdev_to_vport(netdev);
+ vport_config = vport->adapter->vport_config[np->vport_idx];
+ user_config = &vport_config->user_config;
+ num_rxq = user_config->num_req_rx_qs;
+
+ flow_type = fsp->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS);
+ if (flow_type != fsp->flow_type)
+ return -EINVAL;
+
+ if (!idpf_sideband_action_ena(vport, fsp) ||
+ !idpf_sideband_flow_type_ena(vport, flow_type))
+ return -EOPNOTSUPP;
+
+ if (user_config->num_fsteer_fltrs > idpf_fsteer_max_rules(vport))
+ return -ENOSPC;
+
+ q_index = fsp->ring_cookie;
+ if (q_index >= num_rxq)
+ return -EINVAL;
+
+ rule = kzalloc(struct_size(rule, rule_info, 1), GFP_KERNEL);
+ if (!rule)
+ return -ENOMEM;
+
+ rule->vport_id = cpu_to_le32(vport->vport_id);
+ rule->count = cpu_to_le32(1);
+ info = &rule->rule_info[0];
+ info->rule_id = cpu_to_le32(fsp->location);
+
+ hdrs = &info->rule_cfg.proto_hdrs;
+ hdrs->tunnel_level = 0;
+ hdrs->count = cpu_to_le32(2);
+
+ acts = &info->rule_cfg.action_set;
+ acts->count = cpu_to_le32(1);
+ acts->actions[0].action_type = cpu_to_le32(VIRTCHNL2_ACTION_QUEUE);
+ acts->actions[0].act_conf.q_id = cpu_to_le32(q_index);
+
+ switch (flow_type) {
+ case UDP_V4_FLOW:
+ idpf_fsteer_fill_ipv4(hdrs, fsp);
+ idpf_fsteer_fill_udp(hdrs, fsp, true);
+ break;
+ case TCP_V4_FLOW:
+ idpf_fsteer_fill_ipv4(hdrs, fsp);
+ idpf_fsteer_fill_tcp(hdrs, fsp, true);
+ break;
+ default:
+ err = -EINVAL;
+ goto out;
+ }
+
+ err = idpf_add_del_fsteer_filters(vport->adapter, rule, true);
+ if (err)
+ goto out;
+
+ if (info->status != cpu_to_le32(VIRTCHNL2_FLOW_RULE_SUCCESS)) {
+ err = -EIO;
+ goto out;
+ }
+
+ fltr = kzalloc(sizeof(*fltr), GFP_KERNEL);
+ if (!fltr) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ fltr->loc = fsp->location;
+ fltr->q_index = q_index;
fltr->q_index in the struct is unsigned int, and here it is u32, isn’t it?
+ list_for_each_entry(f, &user_config->flow_steer_list, list) {
+ if (f->loc >= fltr->loc)
+ break;
+ parent = f;
+ }
+
+ if (parent)
+ list_add(&fltr->list, &parent->list);
+ else
+ list_add(&fltr->list, &user_config->flow_steer_list);
You could use the ternary operator.
+
+ user_config->num_fsteer_fltrs++;
+
+out:
+ kfree(rule);
+ return err;
+}
+
+/**
+ * idpf_del_flow_steer - delete a Flow Steering filter
+ * @netdev: network interface device structure
+ * @cmd: command to add Flow Steering filter
+ *
+ * Return: 0 on success and negative values for failure
+ */
+static int idpf_del_flow_steer(struct net_device *netdev,
+ struct ethtool_rxnfc *cmd)
+{
+ struct idpf_netdev_priv *np = netdev_priv(netdev);
+ struct idpf_vport_user_config_data *user_config;
+ struct ethtool_rx_flow_spec *fsp = &cmd->fs;
+ struct virtchnl2_flow_rule_add_del *rule;
+ struct idpf_vport_config *vport_config;
+ struct virtchnl2_flow_rule_info *info;
+ struct idpf_fsteer_fltr *f, *iter;
+ struct idpf_vport *vport;
+ int err;
+
+ vport = idpf_netdev_to_vport(netdev);
+ vport_config = vport->adapter->vport_config[np->vport_idx];
+ user_config = &vport_config->user_config;
+
+ if (!idpf_sideband_action_ena(vport, fsp))
+ return -EOPNOTSUPP;
+
+ rule = kzalloc(struct_size(rule, rule_info, 1), GFP_KERNEL);
+ if (!rule)
+ return -ENOMEM;
+
+ rule->vport_id = cpu_to_le32(vport->vport_id);
+ rule->count = cpu_to_le32(1);
+ info = &rule->rule_info[0];
+ info->rule_id = cpu_to_le32(fsp->location);
+
+ err = idpf_add_del_fsteer_filters(vport->adapter, rule, false);
+ if (err)
+ goto out;
+
+ if (info->status != cpu_to_le32(VIRTCHNL2_FLOW_RULE_SUCCESS)) {
+ err = -EIO;
+ goto out;
+ }
+
+ list_for_each_entry_safe(f, iter,
+ &user_config->flow_steer_list, list) {
+ if (f->loc == fsp->location) {
+ list_del(&f->list);
+ kfree(f);
+ user_config->num_fsteer_fltrs--;
+ goto out;
+ }
+ }
+ err = -EINVAL;
+
+out:
+ kfree(rule);
+ return err;
+}
+
+static int idpf_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
+{
+ int ret = -EOPNOTSUPP;
+
+ idpf_vport_ctrl_lock(netdev);
+ switch (cmd->cmd) {
+ case ETHTOOL_SRXCLSRLINS:
+ ret = idpf_add_flow_steer(netdev, cmd);
+ break;
+ case ETHTOOL_SRXCLSRLDEL:
+ ret = idpf_del_flow_steer(netdev, cmd);
+ break;
+ default:
+ break;
+ }
+
+ idpf_vport_ctrl_unlock(netdev);
+ return ret;
}
/**
@@ -1400,6 +1687,7 @@ static const struct ethtool_ops idpf_ethtool_ops = {
.get_sset_count = idpf_get_sset_count,
.get_channels = idpf_get_channels,
.get_rxnfc = idpf_get_rxnfc,
+ .set_rxnfc = idpf_set_rxnfc,
.get_rxfh_key_size = idpf_get_rxfh_key_size,
.get_rxfh_indir_size = idpf_get_rxfh_indir_size,
.get_rxfh = idpf_get_rxfh,
diff --git a/drivers/net/ethernet/intel/idpf/idpf_lib.c
b/drivers/net/ethernet/intel/idpf/idpf_lib.c
index bab12ecb2df5..7d42f21c86b6 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_lib.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_lib.c
@@ -755,6 +755,10 @@ static int idpf_cfg_netdev(struct idpf_vport *vport)
if (idpf_is_cap_ena_all(adapter, IDPF_RSS_CAPS, IDPF_CAP_RSS))
dflt_features |= NETIF_F_RXHASH;
+ if (idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS,
+ VIRTCHNL2_CAP_FLOW_STEER) &&
+ idpf_vport_is_cap_ena(vport, VIRTCHNL2_VPORT_SIDEBAND_FLOW_STEER))
+ dflt_features |= NETIF_F_NTUPLE;
if (idpf_is_cap_ena_all(adapter, IDPF_CSUM_CAPS, IDPF_CAP_TX_CSUM_L4V4))
csum_offloads |= NETIF_F_IP_CSUM;
if (idpf_is_cap_ena_all(adapter, IDPF_CSUM_CAPS, IDPF_CAP_TX_CSUM_L4V6))
@@ -1481,6 +1485,7 @@ void idpf_init_task(struct work_struct *work)
spin_lock_init(&vport_config->mac_filter_list_lock);
INIT_LIST_HEAD(&vport_config->user_config.mac_filter_list);
+ INIT_LIST_HEAD(&vport_config->user_config.flow_steer_list);
err = idpf_check_supported_desc_ids(vport);
if (err) {
diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
index 06c33b638e60..0f827a184176 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
@@ -890,6 +890,37 @@ static int idpf_send_get_caps_msg(struct idpf_adapter
*adapter)
return 0;
}
+/**
+ * idpf_add_del_fsteer_filters - Send virtchnl add/del Flow Steering message
+ * @adapter: adapter info struct
+ * @rule: Flow steering rule to add/delete
+ * @add: True to add filter, FALSE to delete
+ *
+ * Send ADD/DELETE flow steering virtchnl message and receive the result.
+ *
+ * Return: 0 on success, negative on failure.
+ */
+int idpf_add_del_fsteer_filters(struct idpf_adapter *adapter,
+ struct virtchnl2_flow_rule_add_del *rule,
+ bool add)
+{
+ int rule_count = le32_to_cpu(rule->count);
+ struct idpf_vc_xn_params xn_params = {};
+ ssize_t reply_sz;
+
+ xn_params.vc_op = add ? VIRTCHNL2_OP_ADD_FLOW_RULE :
+ VIRTCHNL2_OP_DEL_FLOW_RULE;
+ xn_params.timeout_ms = IDPF_VC_XN_DEFAULT_TIMEOUT_MSEC;
+ xn_params.async = false;
+ xn_params.send_buf.iov_base = rule;
+ xn_params.send_buf.iov_len = struct_size(rule, rule_info, rule_count);
+ xn_params.recv_buf.iov_base = rule;
+ xn_params.recv_buf.iov_len = struct_size(rule, rule_info, rule_count);
+
+ reply_sz = idpf_vc_xn_exec(adapter, &xn_params);
+ return reply_sz < 0 ? reply_sz : 0;
+}
+
/**
* idpf_vport_alloc_max_qs - Allocate max queues for a vport
* @adapter: Driver specific private structure
@@ -3491,6 +3522,79 @@ bool idpf_is_capability_ena(struct idpf_adapter
*adapter, bool all,
return !!(*cap_field & flag);
}
+/**
+ * idpf_vport_is_cap_ena - Check if vport capability is enabled
+ * @vport: Private data struct
+ * @flag: flag(s) to check
+ *
+ * Return: true if the capability is supported, false otherwise
+ */
+bool idpf_vport_is_cap_ena(struct idpf_vport *vport, u16 flag)
Spell it out to enabled?
+{
+ struct virtchnl2_create_vport *vport_msg;
+
+ vport_msg = vport->adapter->vport_params_recvd[vport->idx];
+
+ return !!(le16_to_cpu(vport_msg->vport_flags) & flag);
+}
+
+/**
+ * idpf_sideband_flow_type_ena - Check if steering is enabled for flow type
+ * @vport: Private data struct
+ * @flow_type: flow type to check (from ethtool.h)
+ *
+ * Return: true if sideband filters are allowed for @flow_type, false otherwise
+ */
+bool idpf_sideband_flow_type_ena(struct idpf_vport *vport, u32 flow_type)
Spell it out to enabled?
+{
+ struct virtchnl2_create_vport *vport_msg;
+ __le64 caps;
+
+ vport_msg = vport->adapter->vport_params_recvd[vport->idx];
+ caps = vport_msg->sideband_flow_caps;
+
+ switch (flow_type) {
+ case TCP_V4_FLOW:
+ return !!(caps & cpu_to_le64(VIRTCHNL2_FLOW_IPV4_TCP));
+ case UDP_V4_FLOW:
+ return !!(caps & cpu_to_le64(VIRTCHNL2_FLOW_IPV4_UDP));
+ default:
+ return false;
+ }
+}
+
+/**
+ * idpf_sideband_action_ena - Check if steering is enabled for action
+ * @vport: Private data struct
+ * @fsp: flow spec
+ *
+ * Return: true if sideband filters are allowed for @fsp, false otherwise
+ */
+bool idpf_sideband_action_ena(struct idpf_vport *vport,
+ struct ethtool_rx_flow_spec *fsp)
+{
+ struct virtchnl2_create_vport *vport_msg;
+ unsigned int supp_actions;
+
+ vport_msg = vport->adapter->vport_params_recvd[vport->idx];
+ supp_actions = le32_to_cpu(vport_msg->sideband_flow_actions);
+
+ /* Actions Drop/Wake are not supported */
+ if (fsp->ring_cookie == RX_CLS_FLOW_DISC ||
+ fsp->ring_cookie == RX_CLS_FLOW_WAKE)
+ return false;
+
+ return !!(supp_actions & VIRTCHNL2_ACTION_QUEUE);
+}
+
+unsigned int idpf_fsteer_max_rules(struct idpf_vport *vport)
+{
+ struct virtchnl2_create_vport *vport_msg;
+
+ vport_msg = vport->adapter->vport_params_recvd[vport->idx];
+ return le32_to_cpu(vport_msg->flow_steer_max_rules);
+}
+
/**
* idpf_get_vport_id: Get vport id
* @vport: virtual port structure
diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.h
b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.h
index 3522c1238ea2..165767705469 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.h
+++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.h
@@ -105,6 +105,12 @@ int idpf_get_reg_intr_vecs(struct idpf_vport *vport,
int idpf_queue_reg_init(struct idpf_vport *vport);
int idpf_vport_queue_ids_init(struct idpf_vport *vport);
+bool idpf_vport_is_cap_ena(struct idpf_vport *vport, u16 flag);
+bool idpf_sideband_flow_type_ena(struct idpf_vport *vport, u32 flow_type);
+bool idpf_sideband_action_ena(struct idpf_vport *vport,
+ struct ethtool_rx_flow_spec *fsp);
+unsigned int idpf_fsteer_max_rules(struct idpf_vport *vport);
+
int idpf_recv_mb_msg(struct idpf_adapter *adapter);
int idpf_send_mb_msg(struct idpf_adapter *adapter, u32 op,
u16 msg_size, u8 *msg, u16 cookie);
Kin regards,
Paul
