1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2018-2021, Intel Corporation. */
7 #include <linux/types.h>
8 #include <linux/hashtable.h>
9 #include <linux/bitmap.h>
10 #include <linux/mutex.h>
11 #include <linux/pci.h>
12 #include <net/devlink.h>
13 #include <linux/avf/virtchnl.h>
15 #include "ice_virtchnl_fdir.h"
16 #include "ice_vsi_vlan_ops.h"
18 #define ICE_MAX_SRIOV_VFS 256
20 /* VF resource constraints */
21 #define ICE_MAX_RSS_QS_PER_VF 16
25 struct ice_virtchnl_ops;
28 enum ice_virtchnl_cap {
29 ICE_VIRTCHNL_VF_CAP_PRIVILEGE = 0,
32 /* Specific VF states */
34 ICE_VF_STATE_INIT = 0, /* PF is initializing VF */
35 ICE_VF_STATE_ACTIVE, /* VF resources are allocated for use */
36 ICE_VF_STATE_QS_ENA, /* VF queue(s) enabled */
38 ICE_VF_STATE_MC_PROMISC,
39 ICE_VF_STATE_UC_PROMISC,
44 unsigned long time_modified;
48 /* VF MDD events print structure */
49 struct ice_mdd_vf_events {
50 u16 count; /* total count of Rx|Tx events */
51 /* count number of the last printed event */
57 enum ice_disq_rst_src reset_type;
58 void (*free)(struct ice_vf *vf);
59 void (*clear_reset_state)(struct ice_vf *vf);
60 void (*clear_mbx_register)(struct ice_vf *vf);
61 void (*trigger_reset_register)(struct ice_vf *vf, bool is_vflr);
62 bool (*poll_reset_status)(struct ice_vf *vf);
63 void (*clear_reset_trigger)(struct ice_vf *vf);
64 void (*irq_close)(struct ice_vf *vf);
65 int (*create_vsi)(struct ice_vf *vf);
66 void (*post_vsi_rebuild)(struct ice_vf *vf);
69 /* Virtchnl/SR-IOV config info */
71 DECLARE_HASHTABLE(table, 8); /* table of VF entries */
72 struct mutex table_lock; /* Lock for protecting the hash table */
73 u16 num_supported; /* max supported VFs on this PF */
74 u16 num_qps_per; /* number of queue pairs per VF */
75 u16 num_msix_per; /* default MSI-X vectors per VF */
76 unsigned long last_printed_mdd_jiffies; /* MDD message rate limit */
79 /* VF information structure */
81 struct hlist_node entry;
85 struct pci_dev *vfdev;
86 /* Used during virtchnl message handling and NDO ops against the VF
87 * that will trigger a VFR
89 struct mutex cfg_lock;
91 u16 vf_id; /* VF ID in the PF space */
92 u16 lan_vsi_idx; /* index into PF struct */
94 struct ice_vf_fdir fdir;
95 /* first vector index of this VF in the PF space */
97 struct ice_sw *vf_sw_id; /* switch ID the VF VSIs connect to */
98 struct virtchnl_version_info vf_ver;
99 u32 driver_caps; /* reported by VF driver */
100 u8 dev_lan_addr[ETH_ALEN];
101 u8 hw_lan_addr[ETH_ALEN];
102 struct ice_time_mac legacy_last_added_umac;
103 DECLARE_BITMAP(txq_ena, ICE_MAX_RSS_QS_PER_VF);
104 DECLARE_BITMAP(rxq_ena, ICE_MAX_RSS_QS_PER_VF);
105 struct ice_vlan port_vlan_info; /* Port VLAN ID, QoS, and TPID */
106 struct virtchnl_vlan_caps vlan_v2_caps;
107 struct ice_mbx_vf_info mbx_info;
108 u8 pf_set_mac:1; /* VF MAC address set by VMM admin */
112 u8 link_up:1; /* only valid if VF link is forced */
113 /* VSI indices - actual VSI pointers are maintained in the PF structure
114 * When assigned, these will be non-zero, because VSI 0 is always
115 * the main LAN VSI for the PF.
117 u16 lan_vsi_num; /* ID as used by firmware */
118 unsigned int min_tx_rate; /* Minimum Tx bandwidth limit in Mbps */
119 unsigned int max_tx_rate; /* Maximum Tx bandwidth limit in Mbps */
120 DECLARE_BITMAP(vf_states, ICE_VF_STATES_NBITS); /* VF runtime states */
122 unsigned long vf_caps; /* VF's adv. capabilities */
123 u8 num_req_qs; /* num of queue pairs requested by VF */
125 u16 num_vf_qs; /* num of queue configured per VF */
126 u8 vlan_strip_ena; /* Outer and Inner VLAN strip enable */
127 #define ICE_INNER_VLAN_STRIP_ENA BIT(0)
128 #define ICE_OUTER_VLAN_STRIP_ENA BIT(1)
129 struct ice_mdd_vf_events mdd_rx_events;
130 struct ice_mdd_vf_events mdd_tx_events;
131 DECLARE_BITMAP(opcodes_allowlist, VIRTCHNL_OP_MAX);
133 unsigned long repr_id;
134 const struct ice_virtchnl_ops *virtchnl_ops;
135 const struct ice_vf_ops *vf_ops;
137 /* devlink port data */
138 struct devlink_port devlink_port;
140 u16 num_msix; /* num of MSI-X configured on this VF */
143 /* Flags for controlling behavior of ice_reset_vf */
144 enum ice_vf_reset_flags {
145 ICE_VF_RESET_VFLR = BIT(0), /* Indicate a VFLR reset */
146 ICE_VF_RESET_NOTIFY = BIT(1), /* Notify VF prior to reset */
147 ICE_VF_RESET_LOCK = BIT(2), /* Acquire the VF cfg_lock */
150 static inline u16 ice_vf_get_port_vlan_id(struct ice_vf *vf)
152 return vf->port_vlan_info.vid;
155 static inline u8 ice_vf_get_port_vlan_prio(struct ice_vf *vf)
157 return vf->port_vlan_info.prio;
160 static inline bool ice_vf_is_port_vlan_ena(struct ice_vf *vf)
162 return (ice_vf_get_port_vlan_id(vf) || ice_vf_get_port_vlan_prio(vf));
165 static inline u16 ice_vf_get_port_vlan_tpid(struct ice_vf *vf)
167 return vf->port_vlan_info.tpid;
170 /* VF Hash Table access functions
172 * These functions provide abstraction for interacting with the VF hash table.
173 * In general, direct access to the hash table should be avoided outside of
174 * these functions where possible.
176 * The VF entries in the hash table are protected by reference counting to
177 * track lifetime of accesses from the table. The ice_get_vf_by_id() function
178 * obtains a reference to the VF structure which must be dropped by using
183 * ice_for_each_vf - Iterate over each VF entry
184 * @pf: pointer to the PF private structure
185 * @bkt: bucket index used for iteration
186 * @vf: pointer to the VF entry currently being processed in the loop
188 * The bkt variable is an unsigned integer iterator used to traverse the VF
189 * entries. It is *not* guaranteed to be the VF's vf_id. Do not assume it is.
190 * Use vf->vf_id to get the id number if needed.
192 * The caller is expected to be under the table_lock mutex for the entire
193 * loop. Use this iterator if your loop is long or if it might sleep.
195 #define ice_for_each_vf(pf, bkt, vf) \
196 hash_for_each((pf)->vfs.table, (bkt), (vf), entry)
199 * ice_for_each_vf_rcu - Iterate over each VF entry protected by RCU
200 * @pf: pointer to the PF private structure
201 * @bkt: bucket index used for iteration
202 * @vf: pointer to the VF entry currently being processed in the loop
204 * The bkt variable is an unsigned integer iterator used to traverse the VF
205 * entries. It is *not* guaranteed to be the VF's vf_id. Do not assume it is.
206 * Use vf->vf_id to get the id number if needed.
208 * The caller is expected to be under rcu_read_lock() for the entire loop.
209 * Only use this iterator if your loop is short and you can guarantee it does
212 #define ice_for_each_vf_rcu(pf, bkt, vf) \
213 hash_for_each_rcu((pf)->vfs.table, (bkt), (vf), entry)
215 #ifdef CONFIG_PCI_IOV
216 struct ice_vf *ice_get_vf_by_id(struct ice_pf *pf, u16 vf_id);
217 void ice_put_vf(struct ice_vf *vf);
218 bool ice_has_vfs(struct ice_pf *pf);
219 u16 ice_get_num_vfs(struct ice_pf *pf);
220 struct ice_vsi *ice_get_vf_vsi(struct ice_vf *vf);
221 bool ice_is_vf_disabled(struct ice_vf *vf);
222 int ice_check_vf_ready_for_cfg(struct ice_vf *vf);
223 void ice_set_vf_state_dis(struct ice_vf *vf);
224 bool ice_is_any_vf_in_unicast_promisc(struct ice_pf *pf);
226 ice_vf_get_promisc_masks(struct ice_vf *vf, struct ice_vsi *vsi,
227 u8 *ucast_m, u8 *mcast_m);
229 ice_vf_set_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m);
231 ice_vf_clear_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m);
232 int ice_reset_vf(struct ice_vf *vf, u32 flags);
233 void ice_reset_all_vfs(struct ice_pf *pf);
234 struct ice_vsi *ice_get_vf_ctrl_vsi(struct ice_pf *pf, struct ice_vsi *vsi);
235 #else /* CONFIG_PCI_IOV */
236 static inline struct ice_vf *ice_get_vf_by_id(struct ice_pf *pf, u16 vf_id)
241 static inline void ice_put_vf(struct ice_vf *vf)
245 static inline bool ice_has_vfs(struct ice_pf *pf)
250 static inline u16 ice_get_num_vfs(struct ice_pf *pf)
255 static inline struct ice_vsi *ice_get_vf_vsi(struct ice_vf *vf)
260 static inline bool ice_is_vf_disabled(struct ice_vf *vf)
265 static inline int ice_check_vf_ready_for_cfg(struct ice_vf *vf)
270 static inline void ice_set_vf_state_dis(struct ice_vf *vf)
274 static inline bool ice_is_any_vf_in_unicast_promisc(struct ice_pf *pf)
280 ice_vf_set_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m)
286 ice_vf_clear_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m)
291 static inline int ice_reset_vf(struct ice_vf *vf, u32 flags)
296 static inline void ice_reset_all_vfs(struct ice_pf *pf)
300 static inline struct ice_vsi *
301 ice_get_vf_ctrl_vsi(struct ice_pf *pf, struct ice_vsi *vsi)
305 #endif /* !CONFIG_PCI_IOV */
307 #endif /* _ICE_VF_LIB_H_ */