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Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_sriov.h')
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_sriov.h501
1 files changed, 501 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.h b/drivers/net/ethernet/qlogic/qed/qed_sriov.h
new file mode 100644
index 000000000..6ee2493de
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.h
@@ -0,0 +1,501 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 QLogic Corporation
+ * Copyright (c) 2019-2020 Marvell International Ltd.
+ */
+
+#ifndef _QED_SRIOV_H
+#define _QED_SRIOV_H
+#include <linux/types.h>
+#include "qed_vf.h"
+
+#define QED_ETH_VF_NUM_MAC_FILTERS 1
+#define QED_ETH_VF_NUM_VLAN_FILTERS 2
+#define QED_VF_ARRAY_LENGTH (3)
+
+#ifdef CONFIG_QED_SRIOV
+#define IS_VF(cdev) ((cdev)->b_is_vf)
+#define IS_PF(cdev) (!((cdev)->b_is_vf))
+#define IS_PF_SRIOV(p_hwfn) (!!((p_hwfn)->cdev->p_iov_info))
+#else
+#define IS_VF(cdev) (0)
+#define IS_PF(cdev) (1)
+#define IS_PF_SRIOV(p_hwfn) (0)
+#endif
+#define IS_PF_SRIOV_ALLOC(p_hwfn) (!!((p_hwfn)->pf_iov_info))
+
+#define QED_MAX_VF_CHAINS_PER_PF 16
+
+#define QED_ETH_MAX_VF_NUM_VLAN_FILTERS \
+ (MAX_NUM_VFS * QED_ETH_VF_NUM_VLAN_FILTERS)
+
+enum qed_iov_vport_update_flag {
+ QED_IOV_VP_UPDATE_ACTIVATE,
+ QED_IOV_VP_UPDATE_VLAN_STRIP,
+ QED_IOV_VP_UPDATE_TX_SWITCH,
+ QED_IOV_VP_UPDATE_MCAST,
+ QED_IOV_VP_UPDATE_ACCEPT_PARAM,
+ QED_IOV_VP_UPDATE_RSS,
+ QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN,
+ QED_IOV_VP_UPDATE_SGE_TPA,
+ QED_IOV_VP_UPDATE_MAX,
+};
+
+struct qed_public_vf_info {
+ /* These copies will later be reflected in the bulletin board,
+ * but this copy should be newer.
+ */
+ u8 forced_mac[ETH_ALEN];
+ u16 forced_vlan;
+ u8 mac[ETH_ALEN];
+
+ /* IFLA_VF_LINK_STATE_<X> */
+ int link_state;
+
+ /* Currently configured Tx rate in MB/sec. 0 if unconfigured */
+ int tx_rate;
+
+ /* Trusted VFs can configure promiscuous mode.
+ * Also store shadow promisc configuration if needed.
+ */
+ bool is_trusted_configured;
+ bool is_trusted_request;
+ u8 rx_accept_mode;
+ u8 tx_accept_mode;
+ bool accept_any_vlan;
+};
+
+struct qed_iov_vf_init_params {
+ u16 rel_vf_id;
+
+ /* Number of requested Queues; Currently, don't support different
+ * number of Rx/Tx queues.
+ */
+
+ u16 num_queues;
+
+ /* Allow the client to choose which qzones to use for Rx/Tx,
+ * and which queue_base to use for Tx queues on a per-queue basis.
+ * Notice values should be relative to the PF resources.
+ */
+ u16 req_rx_queue[QED_MAX_VF_CHAINS_PER_PF];
+ u16 req_tx_queue[QED_MAX_VF_CHAINS_PER_PF];
+};
+
+/* This struct is part of qed_dev and contains data relevant to all hwfns;
+ * Initialized only if SR-IOV cpabability is exposed in PCIe config space.
+ */
+struct qed_hw_sriov_info {
+ int pos; /* capability position */
+ int nres; /* number of resources */
+ u32 cap; /* SR-IOV Capabilities */
+ u16 ctrl; /* SR-IOV Control */
+ u16 total_vfs; /* total VFs associated with the PF */
+ u16 num_vfs; /* number of vfs that have been started */
+ u16 initial_vfs; /* initial VFs associated with the PF */
+ u16 nr_virtfn; /* number of VFs available */
+ u16 offset; /* first VF Routing ID offset */
+ u16 stride; /* following VF stride */
+ u16 vf_device_id; /* VF device id */
+ u32 pgsz; /* page size for BAR alignment */
+ u8 link; /* Function Dependency Link */
+
+ u32 first_vf_in_pf;
+};
+
+/* This mailbox is maintained per VF in its PF contains all information
+ * required for sending / receiving a message.
+ */
+struct qed_iov_vf_mbx {
+ union vfpf_tlvs *req_virt;
+ dma_addr_t req_phys;
+ union pfvf_tlvs *reply_virt;
+ dma_addr_t reply_phys;
+
+ /* Address in VF where a pending message is located */
+ dma_addr_t pending_req;
+
+ /* Message from VF awaits handling */
+ bool b_pending_msg;
+
+ u8 *offset;
+
+ /* saved VF request header */
+ struct vfpf_first_tlv first_tlv;
+};
+
+#define QED_IOV_LEGACY_QID_RX (0)
+#define QED_IOV_LEGACY_QID_TX (1)
+#define QED_IOV_QID_INVALID (0xFE)
+
+struct qed_vf_queue_cid {
+ bool b_is_tx;
+ struct qed_queue_cid *p_cid;
+};
+
+/* Describes a qzone associated with the VF */
+struct qed_vf_queue {
+ u16 fw_rx_qid;
+ u16 fw_tx_qid;
+
+ struct qed_vf_queue_cid cids[MAX_QUEUES_PER_QZONE];
+};
+
+enum vf_state {
+ VF_FREE = 0, /* VF ready to be acquired holds no resc */
+ VF_ACQUIRED, /* VF, acquired, but not initialized */
+ VF_ENABLED, /* VF, Enabled */
+ VF_RESET, /* VF, FLR'd, pending cleanup */
+ VF_STOPPED /* VF, Stopped */
+};
+
+struct qed_vf_vlan_shadow {
+ bool used;
+ u16 vid;
+};
+
+struct qed_vf_shadow_config {
+ /* Shadow copy of all guest vlans */
+ struct qed_vf_vlan_shadow vlans[QED_ETH_VF_NUM_VLAN_FILTERS + 1];
+
+ /* Shadow copy of all configured MACs; Empty if forcing MACs */
+ u8 macs[QED_ETH_VF_NUM_MAC_FILTERS][ETH_ALEN];
+ u8 inner_vlan_removal;
+};
+
+/* PFs maintain an array of this structure, per VF */
+struct qed_vf_info {
+ struct qed_iov_vf_mbx vf_mbx;
+ enum vf_state state;
+ bool b_init;
+ bool b_malicious;
+ u8 to_disable;
+
+ struct qed_bulletin bulletin;
+ dma_addr_t vf_bulletin;
+
+ /* PF saves a copy of the last VF acquire message */
+ struct vfpf_acquire_tlv acquire;
+
+ u32 concrete_fid;
+ u16 opaque_fid;
+ u16 mtu;
+
+ u8 vport_id;
+ u8 relative_vf_id;
+ u8 abs_vf_id;
+#define QED_VF_ABS_ID(p_hwfn, p_vf) (QED_PATH_ID(p_hwfn) ? \
+ (p_vf)->abs_vf_id + MAX_NUM_VFS_BB : \
+ (p_vf)->abs_vf_id)
+
+ u8 vport_instance;
+ u8 num_rxqs;
+ u8 num_txqs;
+
+ u16 rx_coal;
+ u16 tx_coal;
+
+ u8 num_sbs;
+
+ u8 num_mac_filters;
+ u8 num_vlan_filters;
+
+ struct qed_vf_queue vf_queues[QED_MAX_VF_CHAINS_PER_PF];
+ u16 igu_sbs[QED_MAX_VF_CHAINS_PER_PF];
+ u8 num_active_rxqs;
+ struct qed_public_vf_info p_vf_info;
+ bool spoof_chk;
+ bool req_spoofchk_val;
+
+ /* Stores the configuration requested by VF */
+ struct qed_vf_shadow_config shadow_config;
+
+ /* A bitfield using bulletin's valid-map bits, used to indicate
+ * which of the bulletin board features have been configured.
+ */
+ u64 configured_features;
+#define QED_IOV_CONFIGURED_FEATURES_MASK ((1 << MAC_ADDR_FORCED) | \
+ (1 << VLAN_ADDR_FORCED))
+};
+
+/* This structure is part of qed_hwfn and used only for PFs that have sriov
+ * capability enabled.
+ */
+struct qed_pf_iov {
+ struct qed_vf_info vfs_array[MAX_NUM_VFS];
+ u64 pending_flr[QED_VF_ARRAY_LENGTH];
+
+ /* Allocate message address continuosuly and split to each VF */
+ void *mbx_msg_virt_addr;
+ dma_addr_t mbx_msg_phys_addr;
+ u32 mbx_msg_size;
+ void *mbx_reply_virt_addr;
+ dma_addr_t mbx_reply_phys_addr;
+ u32 mbx_reply_size;
+ void *p_bulletins;
+ dma_addr_t bulletins_phys;
+ u32 bulletins_size;
+};
+
+enum qed_iov_wq_flag {
+ QED_IOV_WQ_MSG_FLAG,
+ QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,
+ QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
+ QED_IOV_WQ_STOP_WQ_FLAG,
+ QED_IOV_WQ_FLR_FLAG,
+ QED_IOV_WQ_TRUST_FLAG,
+ QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG,
+};
+
+extern const struct qed_iov_hv_ops qed_iov_ops_pass;
+
+#ifdef CONFIG_QED_SRIOV
+/**
+ * qed_iov_is_valid_vfid(): Check if given VF ID @vfid is valid
+ * w.r.t. @b_enabled_only value
+ * if b_enabled_only = true - only enabled
+ * VF id is valid.
+ * else any VF id less than max_vfs is valid.
+ *
+ * @p_hwfn: HW device data.
+ * @rel_vf_id: Relative VF ID.
+ * @b_enabled_only: consider only enabled VF.
+ * @b_non_malicious: true iff we want to validate vf isn't malicious.
+ *
+ * Return: bool - true for valid VF ID
+ */
+bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
+ int rel_vf_id,
+ bool b_enabled_only, bool b_non_malicious);
+
+/**
+ * qed_iov_get_next_active_vf(): Given a VF index, return index of
+ * next [including that] active VF.
+ *
+ * @p_hwfn: HW device data.
+ * @rel_vf_id: VF ID.
+ *
+ * Return: MAX_NUM_VFS in case no further active VFs, otherwise index.
+ */
+u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id);
+
+void qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn,
+ int vfid, u16 vxlan_port, u16 geneve_port);
+
+/**
+ * qed_iov_hw_info(): Read sriov related information and allocated resources
+ * reads from configuration space, shmem, etc.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ */
+int qed_iov_hw_info(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_add_tlv(): place a given tlv on the tlv buffer at next offset
+ *
+ * @p_hwfn: HW device data.
+ * @offset: offset.
+ * @type: Type
+ * @length: Length.
+ *
+ * Return: pointer to the newly placed tlv
+ */
+void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length);
+
+/**
+ * qed_dp_tlv_list(): list the types and lengths of the tlvs on the buffer
+ *
+ * @p_hwfn: HW device data.
+ * @tlvs_list: Tlvs_list.
+ *
+ * Return: Void.
+ */
+void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list);
+
+/**
+ * qed_sriov_vfpf_malicious(): Handle malicious VF/PF.
+ *
+ * @p_hwfn: HW device data.
+ * @p_data: Pointer to data.
+ *
+ * Return: Void.
+ */
+void qed_sriov_vfpf_malicious(struct qed_hwfn *p_hwfn,
+ struct fw_err_data *p_data);
+
+/**
+ * qed_sriov_eqe_event(): Callback for SRIOV events.
+ *
+ * @p_hwfn: HW device data.
+ * @opcode: Opcode.
+ * @echo: Echo.
+ * @data: data
+ * @fw_return_code: FW return code.
+ *
+ * Return: Int.
+ */
+int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn, u8 opcode, __le16 echo,
+ union event_ring_data *data, u8 fw_return_code);
+
+/**
+ * qed_iov_alloc(): allocate sriov related resources
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ */
+int qed_iov_alloc(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_iov_setup(): setup sriov related resources
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Void.
+ */
+void qed_iov_setup(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_iov_free(): free sriov related resources
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Void.
+ */
+void qed_iov_free(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_iov_free_hw_info(): free sriov related memory that was
+ * allocated during hw_prepare
+ *
+ * @cdev: Qed dev pointer.
+ *
+ * Return: Void.
+ */
+void qed_iov_free_hw_info(struct qed_dev *cdev);
+
+/**
+ * qed_iov_mark_vf_flr(): Mark structs of vfs that have been FLR-ed.
+ *
+ * @p_hwfn: HW device data.
+ * @disabled_vfs: bitmask of all VFs on path that were FLRed
+ *
+ * Return: true iff one of the PF's vfs got FLRed. false otherwise.
+ */
+bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *disabled_vfs);
+
+/**
+ * qed_iov_search_list_tlvs(): Search extended TLVs in request/reply buffer.
+ *
+ * @p_hwfn: HW device data.
+ * @p_tlvs_list: Pointer to tlvs list
+ * @req_type: Type of TLV
+ *
+ * Return: pointer to tlv type if found, otherwise returns NULL.
+ */
+void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
+ void *p_tlvs_list, u16 req_type);
+
+void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first);
+int qed_iov_wq_start(struct qed_dev *cdev);
+
+void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag);
+void qed_vf_start_iov_wq(struct qed_dev *cdev);
+int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled);
+void qed_inform_vf_link_state(struct qed_hwfn *hwfn);
+#else
+static inline bool
+qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
+ int rel_vf_id, bool b_enabled_only, bool b_non_malicious)
+{
+ return false;
+}
+
+static inline u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn,
+ u16 rel_vf_id)
+{
+ return MAX_NUM_VFS;
+}
+
+static inline void
+qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn, int vfid,
+ u16 vxlan_port, u16 geneve_port)
+{
+}
+
+static inline int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
+{
+ return 0;
+}
+
+static inline int qed_iov_alloc(struct qed_hwfn *p_hwfn)
+{
+ return 0;
+}
+
+static inline void qed_iov_setup(struct qed_hwfn *p_hwfn)
+{
+}
+
+static inline void qed_iov_free(struct qed_hwfn *p_hwfn)
+{
+}
+
+static inline void qed_iov_free_hw_info(struct qed_dev *cdev)
+{
+}
+
+static inline bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn,
+ u32 *disabled_vfs)
+{
+ return false;
+}
+
+static inline void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first)
+{
+}
+
+static inline int qed_iov_wq_start(struct qed_dev *cdev)
+{
+ return 0;
+}
+
+static inline void qed_schedule_iov(struct qed_hwfn *hwfn,
+ enum qed_iov_wq_flag flag)
+{
+}
+
+static inline void qed_vf_start_iov_wq(struct qed_dev *cdev)
+{
+}
+
+static inline int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled)
+{
+ return 0;
+}
+
+static inline void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
+{
+}
+
+static inline void qed_sriov_vfpf_malicious(struct qed_hwfn *p_hwfn,
+ struct fw_err_data *p_data)
+{
+}
+
+static inline int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn, u8 opcode,
+ __le16 echo, union event_ring_data *data,
+ u8 fw_return_code)
+{
+ return 0;
+}
+#endif
+
+#define qed_for_each_vf(_p_hwfn, _i) \
+ for (_i = qed_iov_get_next_active_vf(_p_hwfn, 0); \
+ _i < MAX_NUM_VFS; \
+ _i = qed_iov_get_next_active_vf(_p_hwfn, _i + 1))
+
+#endif
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