mirror of https://gitee.com/openkylin/linux.git
227 lines
6.8 KiB
C
227 lines
6.8 KiB
C
/*******************************************************************************
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*
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* Intel Ethernet Controller XL710 Family Linux Driver
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* Copyright(c) 2013 - 2015 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Contact Information:
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* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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******************************************************************************/
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#ifndef _I40E_CLIENT_H_
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#define _I40E_CLIENT_H_
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#define I40E_CLIENT_STR_LENGTH 10
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/* Client interface version should be updated anytime there is a change in the
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* existing APIs or data structures.
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*/
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#define I40E_CLIENT_VERSION_MAJOR 0
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#define I40E_CLIENT_VERSION_MINOR 01
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#define I40E_CLIENT_VERSION_BUILD 00
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#define I40E_CLIENT_VERSION_STR \
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__stringify(I40E_CLIENT_VERSION_MAJOR) "." \
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__stringify(I40E_CLIENT_VERSION_MINOR) "." \
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__stringify(I40E_CLIENT_VERSION_BUILD)
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struct i40e_client_version {
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u8 major;
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u8 minor;
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u8 build;
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u8 rsvd;
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};
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enum i40e_client_state {
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__I40E_CLIENT_NULL,
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__I40E_CLIENT_REGISTERED
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};
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enum i40e_client_instance_state {
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__I40E_CLIENT_INSTANCE_NONE,
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__I40E_CLIENT_INSTANCE_OPENED,
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};
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struct i40e_ops;
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struct i40e_client;
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/* HW does not define a type value for AEQ; only for RX/TX and CEQ.
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* In order for us to keep the interface simple, SW will define a
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* unique type value for AEQ.
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*/
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#define I40E_QUEUE_TYPE_PE_AEQ 0x80
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#define I40E_QUEUE_INVALID_IDX 0xFFFF
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struct i40e_qv_info {
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u32 v_idx; /* msix_vector */
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u16 ceq_idx;
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u16 aeq_idx;
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u8 itr_idx;
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};
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struct i40e_qvlist_info {
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u32 num_vectors;
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struct i40e_qv_info qv_info[1];
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};
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#define I40E_CLIENT_MSIX_ALL 0xFFFFFFFF
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/* set of LAN parameters useful for clients managed by LAN */
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/* Struct to hold per priority info */
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struct i40e_prio_qos_params {
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u16 qs_handle; /* qs handle for prio */
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u8 tc; /* TC mapped to prio */
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u8 reserved;
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};
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#define I40E_CLIENT_MAX_USER_PRIORITY 8
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/* Struct to hold Client QoS */
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struct i40e_qos_params {
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struct i40e_prio_qos_params prio_qos[I40E_CLIENT_MAX_USER_PRIORITY];
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};
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struct i40e_params {
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struct i40e_qos_params qos;
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u16 mtu;
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};
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/* Structure to hold Lan device info for a client device */
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struct i40e_info {
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struct i40e_client_version version;
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u8 lanmac[6];
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struct net_device *netdev;
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struct pci_dev *pcidev;
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u8 __iomem *hw_addr;
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u8 fid; /* function id, PF id or VF id */
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#define I40E_CLIENT_FTYPE_PF 0
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#define I40E_CLIENT_FTYPE_VF 1
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u8 ftype; /* function type, PF or VF */
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void *pf;
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/* All L2 params that could change during the life span of the PF
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* and needs to be communicated to the client when they change
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*/
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struct i40e_qvlist_info *qvlist_info;
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struct i40e_params params;
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struct i40e_ops *ops;
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u16 msix_count; /* number of msix vectors*/
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/* Array down below will be dynamically allocated based on msix_count */
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struct msix_entry *msix_entries;
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u16 itr_index; /* Which ITR index the PE driver is suppose to use */
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u16 fw_maj_ver; /* firmware major version */
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u16 fw_min_ver; /* firmware minor version */
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u32 fw_build; /* firmware build number */
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};
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#define I40E_CLIENT_RESET_LEVEL_PF 1
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#define I40E_CLIENT_RESET_LEVEL_CORE 2
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#define I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE BIT(1)
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struct i40e_ops {
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/* setup_q_vector_list enables queues with a particular vector */
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int (*setup_qvlist)(struct i40e_info *ldev, struct i40e_client *client,
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struct i40e_qvlist_info *qv_info);
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int (*virtchnl_send)(struct i40e_info *ldev, struct i40e_client *client,
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u32 vf_id, u8 *msg, u16 len);
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/* If the PE Engine is unresponsive, RDMA driver can request a reset.
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* The level helps determine the level of reset being requested.
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*/
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void (*request_reset)(struct i40e_info *ldev,
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struct i40e_client *client, u32 level);
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/* API for the RDMA driver to set certain VSI flags that control
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* PE Engine.
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*/
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int (*update_vsi_ctxt)(struct i40e_info *ldev,
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struct i40e_client *client,
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bool is_vf, u32 vf_id,
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u32 flag, u32 valid_flag);
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};
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struct i40e_client_ops {
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/* Should be called from register_client() or whenever PF is ready
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* to create a specific client instance.
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*/
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int (*open)(struct i40e_info *ldev, struct i40e_client *client);
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/* Should be called when netdev is unavailable or when unregister
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* call comes in. If the close is happenening due to a reset being
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* triggered set the reset bit to true.
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*/
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void (*close)(struct i40e_info *ldev, struct i40e_client *client,
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bool reset);
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/* called when some l2 managed parameters changes - mtu */
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void (*l2_param_change)(struct i40e_info *ldev,
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struct i40e_client *client,
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struct i40e_params *params);
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int (*virtchnl_receive)(struct i40e_info *ldev,
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struct i40e_client *client, u32 vf_id,
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u8 *msg, u16 len);
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/* called when a VF is reset by the PF */
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void (*vf_reset)(struct i40e_info *ldev,
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struct i40e_client *client, u32 vf_id);
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/* called when the number of VFs changes */
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void (*vf_enable)(struct i40e_info *ldev,
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struct i40e_client *client, u32 num_vfs);
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/* returns true if VF is capable of specified offload */
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int (*vf_capable)(struct i40e_info *ldev,
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struct i40e_client *client, u32 vf_id);
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};
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/* Client device */
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struct i40e_client_instance {
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struct list_head list;
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struct i40e_info lan_info;
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struct i40e_client *client;
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unsigned long state;
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};
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struct i40e_client {
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struct list_head list; /* list of registered clients */
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char name[I40E_CLIENT_STR_LENGTH];
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struct i40e_client_version version;
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unsigned long state; /* client state */
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atomic_t ref_cnt; /* Count of all the client devices of this kind */
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u32 flags;
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#define I40E_CLIENT_FLAGS_LAUNCH_ON_PROBE BIT(0)
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#define I40E_TX_FLAGS_NOTIFY_OTHER_EVENTS BIT(2)
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u8 type;
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#define I40E_CLIENT_IWARP 0
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const struct i40e_client_ops *ops; /* client ops provided by the client */
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};
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static inline bool i40e_client_is_registered(struct i40e_client *client)
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{
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return test_bit(__I40E_CLIENT_REGISTERED, &client->state);
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}
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/* used by clients */
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int i40e_register_client(struct i40e_client *client);
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int i40e_unregister_client(struct i40e_client *client);
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#endif /* _I40E_CLIENT_H_ */
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