1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
35 #include <linux/types.h>
38 #define QED_ETH_VF_NUM_MAC_FILTERS 1
39 #define QED_ETH_VF_NUM_VLAN_FILTERS 2
40 #define QED_VF_ARRAY_LENGTH (3)
42 #ifdef CONFIG_QED_SRIOV
43 #define IS_VF(cdev) ((cdev)->b_is_vf)
44 #define IS_PF(cdev) (!((cdev)->b_is_vf))
45 #define IS_PF_SRIOV(p_hwfn) (!!((p_hwfn)->cdev->p_iov_info))
47 #define IS_VF(cdev) (0)
48 #define IS_PF(cdev) (1)
49 #define IS_PF_SRIOV(p_hwfn) (0)
51 #define IS_PF_SRIOV_ALLOC(p_hwfn) (!!((p_hwfn)->pf_iov_info))
53 #define QED_MAX_VF_CHAINS_PER_PF 16
55 #define QED_ETH_MAX_VF_NUM_VLAN_FILTERS \
56 (MAX_NUM_VFS * QED_ETH_VF_NUM_VLAN_FILTERS)
58 enum qed_iov_vport_update_flag {
59 QED_IOV_VP_UPDATE_ACTIVATE,
60 QED_IOV_VP_UPDATE_VLAN_STRIP,
61 QED_IOV_VP_UPDATE_TX_SWITCH,
62 QED_IOV_VP_UPDATE_MCAST,
63 QED_IOV_VP_UPDATE_ACCEPT_PARAM,
64 QED_IOV_VP_UPDATE_RSS,
65 QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN,
66 QED_IOV_VP_UPDATE_SGE_TPA,
67 QED_IOV_VP_UPDATE_MAX,
70 struct qed_public_vf_info {
71 /* These copies will later be reflected in the bulletin board,
72 * but this copy should be newer.
74 u8 forced_mac[ETH_ALEN];
78 /* IFLA_VF_LINK_STATE_<X> */
81 /* Currently configured Tx rate in MB/sec. 0 if unconfigured */
84 /* Trusted VFs can configure promiscuous mode.
85 * Also store shadow promisc configuration if needed.
87 bool is_trusted_configured;
88 bool is_trusted_request;
94 struct qed_iov_vf_init_params {
97 /* Number of requested Queues; Currently, don't support different
98 * number of Rx/Tx queues.
103 /* Allow the client to choose which qzones to use for Rx/Tx,
104 * and which queue_base to use for Tx queues on a per-queue basis.
105 * Notice values should be relative to the PF resources.
107 u16 req_rx_queue[QED_MAX_VF_CHAINS_PER_PF];
108 u16 req_tx_queue[QED_MAX_VF_CHAINS_PER_PF];
111 /* This struct is part of qed_dev and contains data relevant to all hwfns;
112 * Initialized only if SR-IOV cpabability is exposed in PCIe config space.
114 struct qed_hw_sriov_info {
115 int pos; /* capability position */
116 int nres; /* number of resources */
117 u32 cap; /* SR-IOV Capabilities */
118 u16 ctrl; /* SR-IOV Control */
119 u16 total_vfs; /* total VFs associated with the PF */
120 u16 num_vfs; /* number of vfs that have been started */
121 u16 initial_vfs; /* initial VFs associated with the PF */
122 u16 nr_virtfn; /* number of VFs available */
123 u16 offset; /* first VF Routing ID offset */
124 u16 stride; /* following VF stride */
125 u16 vf_device_id; /* VF device id */
126 u32 pgsz; /* page size for BAR alignment */
127 u8 link; /* Function Dependency Link */
132 /* This mailbox is maintained per VF in its PF contains all information
133 * required for sending / receiving a message.
135 struct qed_iov_vf_mbx {
136 union vfpf_tlvs *req_virt;
138 union pfvf_tlvs *reply_virt;
139 dma_addr_t reply_phys;
141 /* Address in VF where a pending message is located */
142 dma_addr_t pending_req;
144 /* Message from VF awaits handling */
149 /* saved VF request header */
150 struct vfpf_first_tlv first_tlv;
153 #define QED_IOV_LEGACY_QID_RX (0)
154 #define QED_IOV_LEGACY_QID_TX (1)
155 #define QED_IOV_QID_INVALID (0xFE)
157 struct qed_vf_queue_cid {
159 struct qed_queue_cid *p_cid;
162 /* Describes a qzone associated with the VF */
163 struct qed_vf_queue {
167 struct qed_vf_queue_cid cids[MAX_QUEUES_PER_QZONE];
171 VF_FREE = 0, /* VF ready to be acquired holds no resc */
172 VF_ACQUIRED, /* VF, acquired, but not initalized */
173 VF_ENABLED, /* VF, Enabled */
174 VF_RESET, /* VF, FLR'd, pending cleanup */
175 VF_STOPPED /* VF, Stopped */
178 struct qed_vf_vlan_shadow {
183 struct qed_vf_shadow_config {
184 /* Shadow copy of all guest vlans */
185 struct qed_vf_vlan_shadow vlans[QED_ETH_VF_NUM_VLAN_FILTERS + 1];
187 /* Shadow copy of all configured MACs; Empty if forcing MACs */
188 u8 macs[QED_ETH_VF_NUM_MAC_FILTERS][ETH_ALEN];
189 u8 inner_vlan_removal;
192 /* PFs maintain an array of this structure, per VF */
194 struct qed_iov_vf_mbx vf_mbx;
200 struct qed_bulletin bulletin;
201 dma_addr_t vf_bulletin;
203 /* PF saves a copy of the last VF acquire message */
204 struct vfpf_acquire_tlv acquire;
213 #define QED_VF_ABS_ID(p_hwfn, p_vf) (QED_PATH_ID(p_hwfn) ? \
214 (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \
229 struct qed_vf_queue vf_queues[QED_MAX_VF_CHAINS_PER_PF];
230 u16 igu_sbs[QED_MAX_VF_CHAINS_PER_PF];
232 struct qed_public_vf_info p_vf_info;
234 bool req_spoofchk_val;
236 /* Stores the configuration requested by VF */
237 struct qed_vf_shadow_config shadow_config;
239 /* A bitfield using bulletin's valid-map bits, used to indicate
240 * which of the bulletin board features have been configured.
242 u64 configured_features;
243 #define QED_IOV_CONFIGURED_FEATURES_MASK ((1 << MAC_ADDR_FORCED) | \
244 (1 << VLAN_ADDR_FORCED))
247 /* This structure is part of qed_hwfn and used only for PFs that have sriov
248 * capability enabled.
251 struct qed_vf_info vfs_array[MAX_NUM_VFS];
252 u64 pending_flr[QED_VF_ARRAY_LENGTH];
254 /* Allocate message address continuosuly and split to each VF */
255 void *mbx_msg_virt_addr;
256 dma_addr_t mbx_msg_phys_addr;
258 void *mbx_reply_virt_addr;
259 dma_addr_t mbx_reply_phys_addr;
262 dma_addr_t bulletins_phys;
266 enum qed_iov_wq_flag {
268 QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,
269 QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
270 QED_IOV_WQ_STOP_WQ_FLAG,
272 QED_IOV_WQ_TRUST_FLAG,
273 QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG,
276 #ifdef CONFIG_QED_SRIOV
278 * @brief Check if given VF ID @vfid is valid
279 * w.r.t. @b_enabled_only value
280 * if b_enabled_only = true - only enabled VF id is valid
281 * else any VF id less than max_vfs is valid
284 * @param rel_vf_id - Relative VF ID
285 * @param b_enabled_only - consider only enabled VF
286 * @param b_non_malicious - true iff we want to validate vf isn't malicious.
288 * @return bool - true for valid VF ID
290 bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
292 bool b_enabled_only, bool b_non_malicious);
295 * @brief - Given a VF index, return index of next [including that] active VF.
300 * @return MAX_NUM_VFS in case no further active VFs, otherwise index.
302 u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id);
304 void qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn,
305 int vfid, u16 vxlan_port, u16 geneve_port);
308 * @brief Read sriov related information and allocated resources
309 * reads from configuraiton space, shmem, etc.
315 int qed_iov_hw_info(struct qed_hwfn *p_hwfn);
318 * @brief qed_add_tlv - place a given tlv on the tlv buffer at next offset
325 * @return pointer to the newly placed tlv
327 void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length);
330 * @brief list the types and lengths of the tlvs on the buffer
335 void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list);
338 * @brief qed_iov_alloc - allocate sriov related resources
344 int qed_iov_alloc(struct qed_hwfn *p_hwfn);
347 * @brief qed_iov_setup - setup sriov related resources
351 void qed_iov_setup(struct qed_hwfn *p_hwfn);
354 * @brief qed_iov_free - free sriov related resources
358 void qed_iov_free(struct qed_hwfn *p_hwfn);
361 * @brief free sriov related memory that was allocated during hw_prepare
365 void qed_iov_free_hw_info(struct qed_dev *cdev);
368 * @brief Mark structs of vfs that have been FLR-ed.
371 * @param disabled_vfs - bitmask of all VFs on path that were FLRed
373 * @return true iff one of the PF's vfs got FLRed. false otherwise.
375 bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *disabled_vfs);
378 * @brief Search extended TLVs in request/reply buffer.
381 * @param p_tlvs_list - Pointer to tlvs list
382 * @param req_type - Type of TLV
384 * @return pointer to tlv type if found, otherwise returns NULL.
386 void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
387 void *p_tlvs_list, u16 req_type);
389 void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first);
390 int qed_iov_wq_start(struct qed_dev *cdev);
392 void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag);
393 void qed_vf_start_iov_wq(struct qed_dev *cdev);
394 int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled);
395 void qed_inform_vf_link_state(struct qed_hwfn *hwfn);
398 qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
399 int rel_vf_id, bool b_enabled_only, bool b_non_malicious)
404 static inline u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn,
411 qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn, int vfid,
412 u16 vxlan_port, u16 geneve_port)
416 static inline int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
421 static inline int qed_iov_alloc(struct qed_hwfn *p_hwfn)
426 static inline void qed_iov_setup(struct qed_hwfn *p_hwfn)
430 static inline void qed_iov_free(struct qed_hwfn *p_hwfn)
434 static inline void qed_iov_free_hw_info(struct qed_dev *cdev)
438 static inline bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn,
444 static inline void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first)
448 static inline int qed_iov_wq_start(struct qed_dev *cdev)
453 static inline void qed_schedule_iov(struct qed_hwfn *hwfn,
454 enum qed_iov_wq_flag flag)
458 static inline void qed_vf_start_iov_wq(struct qed_dev *cdev)
462 static inline int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled)
467 static inline void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
472 #define qed_for_each_vf(_p_hwfn, _i) \
473 for (_i = qed_iov_get_next_active_vf(_p_hwfn, 0); \
475 _i = qed_iov_get_next_active_vf(_p_hwfn, _i + 1))