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6c5bafba34
The i.MX95 ENETC supports both MAC hash filter and MAC exact filter. MAC hash filter is implenented through a 64-bit hash table to match against the hashed addresses, PF and VFs each have two MAC hash tables, one is for unicast and the other one is for multicast. But MAC exact filter is shared between SIs (PF and VFs), each table entry contains a MAC address that may be unicast or multicast and the entry also contains an SI bitmap field that indicates for which SIs the entry is valid. For i.MX95 ENETC, MAC exact filter only has 4 entries. According to the observation of the system default network configuration, the MAC filter will be configured with multiple multicast addresses, so MAC exact filter does not have enough entries to implement multicast filtering. Therefore, the current MAC exact filter is only used for unicast filtering. If the number of unicast addresses exceeds 4, then MAC hash filter is used. Note that both MAC hash filter and MAC exact filter can only be accessed by PF, VFs can notify PF to set its corresponding MAC filter through the mailbox mechanism of ENETC. But currently MAC filter is only added for i.MX95 ENETC PF. The MAC filter support of ENETC VFs will be supported in subsequent patches. Signed-off-by: Wei Fang <wei.fang@nxp.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://patch.msgid.link/20250506080735.3444381-5-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
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/* Copyright 2017-2019 NXP */
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#include "enetc.h"
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#include <linux/phylink.h>
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#define ENETC_PF_NUM_RINGS 8
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#define ENETC_MAX_NUM_MAC_FLT ((ENETC_MAX_NUM_VFS + 1) * MADDR_TYPE)
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#define ENETC_VLAN_HT_SIZE 64
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enum enetc_vf_flags {
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ENETC_VF_FLAG_PF_SET_MAC = BIT(0),
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};
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struct enetc_vf_state {
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enum enetc_vf_flags flags;
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};
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struct enetc_port_caps {
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u32 half_duplex:1;
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int num_vsi;
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int num_msix;
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int num_rx_bdr;
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int num_tx_bdr;
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int mac_filter_num;
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};
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struct enetc_pf;
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struct enetc_pf_ops {
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void (*set_si_primary_mac)(struct enetc_hw *hw, int si, const u8 *addr);
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void (*get_si_primary_mac)(struct enetc_hw *hw, int si, u8 *addr);
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struct phylink_pcs *(*create_pcs)(struct enetc_pf *pf, struct mii_bus *bus);
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void (*destroy_pcs)(struct phylink_pcs *pcs);
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int (*enable_psfp)(struct enetc_ndev_priv *priv);
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};
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struct enetc_pf {
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struct enetc_si *si;
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int num_vfs; /* number of active VFs, after sriov_init */
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int total_vfs; /* max number of VFs, set for PF at probe */
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struct enetc_vf_state *vf_state;
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struct enetc_mac_filter mac_filter[ENETC_MAX_NUM_MAC_FLT];
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struct enetc_msg_swbd rxmsg[ENETC_MAX_NUM_VFS];
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struct work_struct msg_task;
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char msg_int_name[ENETC_INT_NAME_MAX];
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char vlan_promisc_simap; /* bitmap of SIs in VLAN promisc mode */
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DECLARE_BITMAP(vlan_ht_filter, ENETC_VLAN_HT_SIZE);
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DECLARE_BITMAP(active_vlans, VLAN_N_VID);
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struct mii_bus *mdio; /* saved for cleanup */
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struct mii_bus *imdio;
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struct phylink_pcs *pcs;
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phy_interface_t if_mode;
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struct phylink_config phylink_config;
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struct enetc_port_caps caps;
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const struct enetc_pf_ops *ops;
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int num_mfe; /* number of mac address filter table entries */
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};
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#define phylink_to_enetc_pf(config) \
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container_of((config), struct enetc_pf, phylink_config)
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int enetc_msg_psi_init(struct enetc_pf *pf);
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void enetc_msg_psi_free(struct enetc_pf *pf);
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void enetc_msg_handle_rxmsg(struct enetc_pf *pf, int mbox_id, u16 *status);
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