1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015 QLogic Corporation
4 * This software is available under the terms of the GNU General Public License
5 * (GPL) Version 2, available from the file COPYING in the main directory of
11 #include <linux/types.h>
13 #define QED_VF_ARRAY_LENGTH (3)
15 #ifdef CONFIG_QED_SRIOV
16 #define IS_VF(cdev) ((cdev)->b_is_vf)
17 #define IS_PF(cdev) (!((cdev)->b_is_vf))
18 #define IS_PF_SRIOV(p_hwfn) (!!((p_hwfn)->cdev->p_iov_info))
20 #define IS_VF(cdev) (0)
21 #define IS_PF(cdev) (1)
22 #define IS_PF_SRIOV(p_hwfn) (0)
24 #define IS_PF_SRIOV_ALLOC(p_hwfn) (!!((p_hwfn)->pf_iov_info))
26 #define QED_MAX_VF_CHAINS_PER_PF 16
27 #define QED_ETH_VF_NUM_VLAN_FILTERS 2
29 #define QED_ETH_MAX_VF_NUM_VLAN_FILTERS \
30 (MAX_NUM_VFS * QED_ETH_VF_NUM_VLAN_FILTERS)
32 enum qed_iov_vport_update_flag {
33 QED_IOV_VP_UPDATE_ACTIVATE,
34 QED_IOV_VP_UPDATE_VLAN_STRIP,
35 QED_IOV_VP_UPDATE_TX_SWITCH,
36 QED_IOV_VP_UPDATE_MCAST,
37 QED_IOV_VP_UPDATE_ACCEPT_PARAM,
38 QED_IOV_VP_UPDATE_RSS,
39 QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN,
40 QED_IOV_VP_UPDATE_SGE_TPA,
41 QED_IOV_VP_UPDATE_MAX,
44 struct qed_public_vf_info {
45 /* These copies will later be reflected in the bulletin board,
46 * but this copy should be newer.
48 u8 forced_mac[ETH_ALEN];
52 /* IFLA_VF_LINK_STATE_<X> */
55 /* Currently configured Tx rate in MB/sec. 0 if unconfigured */
59 /* This struct is part of qed_dev and contains data relevant to all hwfns;
60 * Initialized only if SR-IOV cpabability is exposed in PCIe config space.
62 struct qed_hw_sriov_info {
63 int pos; /* capability position */
64 int nres; /* number of resources */
65 u32 cap; /* SR-IOV Capabilities */
66 u16 ctrl; /* SR-IOV Control */
67 u16 total_vfs; /* total VFs associated with the PF */
68 u16 num_vfs; /* number of vfs that have been started */
69 u16 initial_vfs; /* initial VFs associated with the PF */
70 u16 nr_virtfn; /* number of VFs available */
71 u16 offset; /* first VF Routing ID offset */
72 u16 stride; /* following VF stride */
73 u16 vf_device_id; /* VF device id */
74 u32 pgsz; /* page size for BAR alignment */
75 u8 link; /* Function Dependency Link */
80 /* This mailbox is maintained per VF in its PF contains all information
81 * required for sending / receiving a message.
83 struct qed_iov_vf_mbx {
84 union vfpf_tlvs *req_virt;
86 union pfvf_tlvs *reply_virt;
87 dma_addr_t reply_phys;
89 /* Address in VF where a pending message is located */
90 dma_addr_t pending_req;
94 /* saved VF request header */
95 struct vfpf_first_tlv first_tlv;
98 struct qed_vf_q_info {
107 VF_FREE = 0, /* VF ready to be acquired holds no resc */
108 VF_ACQUIRED, /* VF, acquired, but not initalized */
109 VF_ENABLED, /* VF, Enabled */
110 VF_RESET, /* VF, FLR'd, pending cleanup */
111 VF_STOPPED /* VF, Stopped */
114 struct qed_vf_vlan_shadow {
119 struct qed_vf_shadow_config {
120 /* Shadow copy of all guest vlans */
121 struct qed_vf_vlan_shadow vlans[QED_ETH_VF_NUM_VLAN_FILTERS + 1];
123 u8 inner_vlan_removal;
126 /* PFs maintain an array of this structure, per VF */
128 struct qed_iov_vf_mbx vf_mbx;
133 struct qed_bulletin bulletin;
134 dma_addr_t vf_bulletin;
143 #define QED_VF_ABS_ID(p_hwfn, p_vf) (QED_PATH_ID(p_hwfn) ? \
144 (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \
155 struct qed_vf_q_info vf_queues[QED_MAX_VF_CHAINS_PER_PF];
156 u16 igu_sbs[QED_MAX_VF_CHAINS_PER_PF];
158 struct qed_public_vf_info p_vf_info;
160 bool req_spoofchk_val;
162 /* Stores the configuration requested by VF */
163 struct qed_vf_shadow_config shadow_config;
165 /* A bitfield using bulletin's valid-map bits, used to indicate
166 * which of the bulletin board features have been configured.
168 u64 configured_features;
169 #define QED_IOV_CONFIGURED_FEATURES_MASK ((1 << MAC_ADDR_FORCED) | \
170 (1 << VLAN_ADDR_FORCED))
173 /* This structure is part of qed_hwfn and used only for PFs that have sriov
174 * capability enabled.
177 struct qed_vf_info vfs_array[MAX_NUM_VFS];
178 u64 pending_events[QED_VF_ARRAY_LENGTH];
179 u64 pending_flr[QED_VF_ARRAY_LENGTH];
181 /* Allocate message address continuosuly and split to each VF */
182 void *mbx_msg_virt_addr;
183 dma_addr_t mbx_msg_phys_addr;
185 void *mbx_reply_virt_addr;
186 dma_addr_t mbx_reply_phys_addr;
189 dma_addr_t bulletins_phys;
193 enum qed_iov_wq_flag {
195 QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,
196 QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
197 QED_IOV_WQ_STOP_WQ_FLAG,
201 #ifdef CONFIG_QED_SRIOV
203 * @brief - Given a VF index, return index of next [including that] active VF.
208 * @return MAX_NUM_VFS in case no further active VFs, otherwise index.
210 u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id);
213 * @brief Read sriov related information and allocated resources
214 * reads from configuraiton space, shmem, etc.
220 int qed_iov_hw_info(struct qed_hwfn *p_hwfn);
223 * @brief qed_add_tlv - place a given tlv on the tlv buffer at next offset
230 * @return pointer to the newly placed tlv
232 void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length);
235 * @brief list the types and lengths of the tlvs on the buffer
240 void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list);
243 * @brief qed_iov_alloc - allocate sriov related resources
249 int qed_iov_alloc(struct qed_hwfn *p_hwfn);
252 * @brief qed_iov_setup - setup sriov related resources
257 void qed_iov_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
260 * @brief qed_iov_free - free sriov related resources
264 void qed_iov_free(struct qed_hwfn *p_hwfn);
267 * @brief free sriov related memory that was allocated during hw_prepare
271 void qed_iov_free_hw_info(struct qed_dev *cdev);
274 * @brief qed_sriov_eqe_event - handle async sriov event arrived on eqe.
281 int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn,
282 u8 opcode, __le16 echo, union event_ring_data *data);
285 * @brief Mark structs of vfs that have been FLR-ed.
288 * @param disabled_vfs - bitmask of all VFs on path that were FLRed
290 * @return 1 iff one of the PF's vfs got FLRed. 0 otherwise.
292 int qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *disabled_vfs);
295 * @brief Search extended TLVs in request/reply buffer.
298 * @param p_tlvs_list - Pointer to tlvs list
299 * @param req_type - Type of TLV
301 * @return pointer to tlv type if found, otherwise returns NULL.
303 void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
304 void *p_tlvs_list, u16 req_type);
306 void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first);
307 int qed_iov_wq_start(struct qed_dev *cdev);
309 void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag);
310 void qed_vf_start_iov_wq(struct qed_dev *cdev);
311 int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled);
312 void qed_inform_vf_link_state(struct qed_hwfn *hwfn);
314 static inline u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn,
320 static inline int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
325 static inline int qed_iov_alloc(struct qed_hwfn *p_hwfn)
330 static inline void qed_iov_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
334 static inline void qed_iov_free(struct qed_hwfn *p_hwfn)
338 static inline void qed_iov_free_hw_info(struct qed_dev *cdev)
342 static inline int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn,
344 __le16 echo, union event_ring_data *data)
349 static inline int qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn,
355 static inline void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first)
359 static inline int qed_iov_wq_start(struct qed_dev *cdev)
364 static inline void qed_schedule_iov(struct qed_hwfn *hwfn,
365 enum qed_iov_wq_flag flag)
369 static inline void qed_vf_start_iov_wq(struct qed_dev *cdev)
373 static inline int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled)
378 static inline void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
383 #define qed_for_each_vf(_p_hwfn, _i) \
384 for (_i = qed_iov_get_next_active_vf(_p_hwfn, 0); \
386 _i = qed_iov_get_next_active_vf(_p_hwfn, _i + 1))