i40e: use new unified virtchnl header file (55cdfd48) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/net/ethernet/intel/i40e/i40e.h

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		#include "i40e_type.h"
		#include "i40e_prototype.h"
		#include "i40e_client.h"
		#include "i40e_virtchnl.h"
		#include <linux/avf/virtchnl.h>
		#include "i40e_virtchnl_pf.h"
		#include "i40e_txrx.h"
		#include "i40e_dcb.h"

drivers/net/ethernet/intel/i40e/i40e_common.c

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		#include "i40e_type.h"
		#include "i40e_adminq.h"
		#include "i40e_prototype.h"
		#include "i40e_virtchnl.h"
		#include <linux/avf/virtchnl.h>

		/**
		* i40e_set_mac_type - Sets MAC type

drivers/net/ethernet/intel/i40e/i40e_prototype.h

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		@@ -29,7 +29,7 @@

		#include "i40e_type.h"
		#include "i40e_alloc.h"
		#include "i40e_virtchnl.h"
		#include <linux/avf/virtchnl.h>

		/* Prototypes for shared code functions that are not in
		* the standard function pointer structures. These are

drivers/net/ethernet/intel/i40e/i40e_virtchnl.h

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		/*******************************************************************************
		*
		* Intel Ethernet Controller XL710 Family Linux Driver
		* Copyright(c) 2013 - 2014 Intel Corporation.
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms and conditions of the GNU General Public License,
		* version 2, as published by the Free Software Foundation.
		*
		* This program is distributed in the hope it will be useful, but WITHOUT
		* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
		* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
		* more details.
		*
		* You should have received a copy of the GNU General Public License along
		* with this program. If not, see <http://www.gnu.org/licenses/>.
		*
		* The full GNU General Public License is included in this distribution in
		* the file called "COPYING".
		*
		* Contact Information:
		* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
		* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
		*
		******************************************************************************/

		#ifndef _I40E_VIRTCHNL_H_
		#define _I40E_VIRTCHNL_H_

		#include "i40e_type.h"

		/* Description:
		* This header file describes the VF-PF communication protocol used
		* by the various i40e drivers.
		*
		* Admin queue buffer usage:
		* desc->opcode is always i40e_aqc_opc_send_msg_to_pf
		* flags, retval, datalen, and data addr are all used normally.
		* Firmware copies the cookie fields when sending messages between the PF and
		* VF, but uses all other fields internally. Due to this limitation, we
		* must send all messages as "indirect", i.e. using an external buffer.
		*
		* All the vsi indexes are relative to the VF. Each VF can have maximum of
		* three VSIs. All the queue indexes are relative to the VSI. Each VF can
		* have a maximum of sixteen queues for all of its VSIs.
		*
		* The PF is required to return a status code in v_retval for all messages
		* except RESET_VF, which does not require any response. The return value is of
		* i40e_status_code type, defined in the i40e_type.h.
		*
		* In general, VF driver initialization should roughly follow the order of these
		* opcodes. The VF driver must first validate the API version of the PF driver,
		* then request a reset, then get resources, then configure queues and
		* interrupts. After these operations are complete, the VF driver may start
		* its queues, optionally add MAC and VLAN filters, and process traffic.
		*/

		/* Opcodes for VF-PF communication. These are placed in the v_opcode field
		* of the virtchnl_msg structure.
		*/
		enum i40e_virtchnl_ops {
		/* The PF sends status change events to VFs using
		* the I40E_VIRTCHNL_OP_EVENT opcode.
		* VFs send requests to the PF using the other ops.
		*/
		I40E_VIRTCHNL_OP_UNKNOWN = 0,
		I40E_VIRTCHNL_OP_VERSION = 1, /* must ALWAYS be 1 */
		I40E_VIRTCHNL_OP_RESET_VF = 2,
		I40E_VIRTCHNL_OP_GET_VF_RESOURCES = 3,
		I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE = 4,
		I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE = 5,
		I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES = 6,
		I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP = 7,
		I40E_VIRTCHNL_OP_ENABLE_QUEUES = 8,
		I40E_VIRTCHNL_OP_DISABLE_QUEUES = 9,
		I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS = 10,
		I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS = 11,
		I40E_VIRTCHNL_OP_ADD_VLAN = 12,
		I40E_VIRTCHNL_OP_DEL_VLAN = 13,
		I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE = 14,
		I40E_VIRTCHNL_OP_GET_STATS = 15,
		I40E_VIRTCHNL_OP_FCOE = 16,
		I40E_VIRTCHNL_OP_EVENT = 17, /* must ALWAYS be 17 */
		I40E_VIRTCHNL_OP_IWARP = 20,
		I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP = 21,
		I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP = 22,
		I40E_VIRTCHNL_OP_CONFIG_RSS_KEY = 23,
		I40E_VIRTCHNL_OP_CONFIG_RSS_LUT = 24,
		I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS = 25,
		I40E_VIRTCHNL_OP_SET_RSS_HENA = 26,

		};

		/* Virtual channel message descriptor. This overlays the admin queue
		* descriptor. All other data is passed in external buffers.
		*/

		struct i40e_virtchnl_msg {
		u8 pad[8]; /* AQ flags/opcode/len/retval fields */
		enum i40e_virtchnl_ops v_opcode; /* avoid confusion with desc->opcode */
		i40e_status v_retval; /* ditto for desc->retval */
		u32 vfid; /* used by PF when sending to VF */
		};

		/* Message descriptions and data structures.*/

		/* I40E_VIRTCHNL_OP_VERSION
		* VF posts its version number to the PF. PF responds with its version number
		* in the same format, along with a return code.
		* Reply from PF has its major/minor versions also in param0 and param1.
		* If there is a major version mismatch, then the VF cannot operate.
		* If there is a minor version mismatch, then the VF can operate but should
		* add a warning to the system log.
		*
		* This enum element MUST always be specified as == 1, regardless of other
		* changes in the API. The PF must always respond to this message without
		* error regardless of version mismatch.
		*/
		#define I40E_VIRTCHNL_VERSION_MAJOR 1
		#define I40E_VIRTCHNL_VERSION_MINOR 1
		#define I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS 0

		struct i40e_virtchnl_version_info {
		u32 major;
		u32 minor;
		};

		/* I40E_VIRTCHNL_OP_RESET_VF
		* VF sends this request to PF with no parameters
		* PF does NOT respond! VF driver must delay then poll VFGEN_RSTAT register
		* until reset completion is indicated. The admin queue must be reinitialized
		* after this operation.
		*
		* When reset is complete, PF must ensure that all queues in all VSIs associated
		* with the VF are stopped, all queue configurations in the HMC are set to 0,
		* and all MAC and VLAN filters (except the default MAC address) on all VSIs
		* are cleared.
		*/

		/* I40E_VIRTCHNL_OP_GET_VF_RESOURCES
		* Version 1.0 VF sends this request to PF with no parameters
		* Version 1.1 VF sends this request to PF with u32 bitmap of its capabilities
		* PF responds with an indirect message containing
		* i40e_virtchnl_vf_resource and one or more
		* i40e_virtchnl_vsi_resource structures.
		*/

		struct i40e_virtchnl_vsi_resource {
		u16 vsi_id;
		u16 num_queue_pairs;
		enum i40e_vsi_type vsi_type;
		u16 qset_handle;
		u8 default_mac_addr[ETH_ALEN];
		};
		/* VF offload flags */
		#define I40E_VIRTCHNL_VF_OFFLOAD_L2 0x00000001
		#define I40E_VIRTCHNL_VF_OFFLOAD_IWARP 0x00000002
		#define I40E_VIRTCHNL_VF_OFFLOAD_FCOE 0x00000004
		#define I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ 0x00000008
		#define I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG 0x00000010
		#define I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR 0x00000020
		#define I40E_VIRTCHNL_VF_OFFLOAD_VLAN 0x00010000
		#define I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING 0x00020000
		#define I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 0x00040000
		#define I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF 0X00080000
		#define I40E_VIRTCHNL_VF_OFFLOAD_ENCAP 0X00100000
		#define I40E_VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM 0X00200000

		#define I40E_VF_BASE_MODE_OFFLOADS (I40E_VIRTCHNL_VF_OFFLOAD_L2 \| \
		I40E_VIRTCHNL_VF_OFFLOAD_VLAN \| \
		I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF)

		struct i40e_virtchnl_vf_resource {
		u16 num_vsis;
		u16 num_queue_pairs;
		u16 max_vectors;
		u16 max_mtu;

		u32 vf_offload_flags;
		u32 rss_key_size;
		u32 rss_lut_size;

		struct i40e_virtchnl_vsi_resource vsi_res[1];
		};

		/* I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE
		* VF sends this message to set up parameters for one TX queue.
		* External data buffer contains one instance of i40e_virtchnl_txq_info.
		* PF configures requested queue and returns a status code.
		*/

		/* Tx queue config info */
		struct i40e_virtchnl_txq_info {
		u16 vsi_id;
		u16 queue_id;
		u16 ring_len; /* number of descriptors, multiple of 8 */
		u16 headwb_enabled;
		u64 dma_ring_addr;
		u64 dma_headwb_addr;
		};

		/* I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE
		* VF sends this message to set up parameters for one RX queue.
		* External data buffer contains one instance of i40e_virtchnl_rxq_info.
		* PF configures requested queue and returns a status code.
		*/

		/* Rx queue config info */
		struct i40e_virtchnl_rxq_info {
		u16 vsi_id;
		u16 queue_id;
		u32 ring_len; /* number of descriptors, multiple of 32 */
		u16 hdr_size;
		u16 splithdr_enabled;
		u32 databuffer_size;
		u32 max_pkt_size;
		u64 dma_ring_addr;
		enum i40e_hmc_obj_rx_hsplit_0 rx_split_pos;
		};

		/* I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES
		* VF sends this message to set parameters for all active TX and RX queues
		* associated with the specified VSI.
		* PF configures queues and returns status.
		* If the number of queues specified is greater than the number of queues
		* associated with the VSI, an error is returned and no queues are configured.
		*/
		struct i40e_virtchnl_queue_pair_info {
		/* NOTE: vsi_id and queue_id should be identical for both queues. */
		struct i40e_virtchnl_txq_info txq;
		struct i40e_virtchnl_rxq_info rxq;
		};

		struct i40e_virtchnl_vsi_queue_config_info {
		u16 vsi_id;
		u16 num_queue_pairs;
		struct i40e_virtchnl_queue_pair_info qpair[1];
		};

		/* I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP
		* VF uses this message to map vectors to queues.
		* The rxq_map and txq_map fields are bitmaps used to indicate which queues
		* are to be associated with the specified vector.
		* The "other" causes are always mapped to vector 0.
		* PF configures interrupt mapping and returns status.
		*/
		struct i40e_virtchnl_vector_map {
		u16 vsi_id;
		u16 vector_id;
		u16 rxq_map;
		u16 txq_map;
		u16 rxitr_idx;
		u16 txitr_idx;
		};

		struct i40e_virtchnl_irq_map_info {
		u16 num_vectors;
		struct i40e_virtchnl_vector_map vecmap[1];
		};

		/* I40E_VIRTCHNL_OP_ENABLE_QUEUES
		* I40E_VIRTCHNL_OP_DISABLE_QUEUES
		* VF sends these message to enable or disable TX/RX queue pairs.
		* The queues fields are bitmaps indicating which queues to act upon.
		* (Currently, we only support 16 queues per VF, but we make the field
		* u32 to allow for expansion.)
		* PF performs requested action and returns status.
		*/
		struct i40e_virtchnl_queue_select {
		u16 vsi_id;
		u16 pad;
		u32 rx_queues;
		u32 tx_queues;
		};

		/* I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS
		* VF sends this message in order to add one or more unicast or multicast
		* address filters for the specified VSI.
		* PF adds the filters and returns status.
		*/

		/* I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS
		* VF sends this message in order to remove one or more unicast or multicast
		* filters for the specified VSI.
		* PF removes the filters and returns status.
		*/

		struct i40e_virtchnl_ether_addr {
		u8 addr[ETH_ALEN];
		u8 pad[2];
		};

		struct i40e_virtchnl_ether_addr_list {
		u16 vsi_id;
		u16 num_elements;
		struct i40e_virtchnl_ether_addr list[1];
		};

		/* I40E_VIRTCHNL_OP_ADD_VLAN
		* VF sends this message to add one or more VLAN tag filters for receives.
		* PF adds the filters and returns status.
		* If a port VLAN is configured by the PF, this operation will return an
		* error to the VF.
		*/

		/* I40E_VIRTCHNL_OP_DEL_VLAN
		* VF sends this message to remove one or more VLAN tag filters for receives.
		* PF removes the filters and returns status.
		* If a port VLAN is configured by the PF, this operation will return an
		* error to the VF.
		*/

		struct i40e_virtchnl_vlan_filter_list {
		u16 vsi_id;
		u16 num_elements;
		u16 vlan_id[1];
		};

		/* I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE
		* VF sends VSI id and flags.
		* PF returns status code in retval.
		* Note: we assume that broadcast accept mode is always enabled.
		*/
		struct i40e_virtchnl_promisc_info {
		u16 vsi_id;
		u16 flags;
		};

		#define I40E_FLAG_VF_UNICAST_PROMISC 0x00000001
		#define I40E_FLAG_VF_MULTICAST_PROMISC 0x00000002

		/* I40E_VIRTCHNL_OP_GET_STATS
		* VF sends this message to request stats for the selected VSI. VF uses
		* the i40e_virtchnl_queue_select struct to specify the VSI. The queue_id
		* field is ignored by the PF.
		*
		* PF replies with struct i40e_eth_stats in an external buffer.
		*/

		/* I40E_VIRTCHNL_OP_CONFIG_RSS_KEY
		* I40E_VIRTCHNL_OP_CONFIG_RSS_LUT
		* VF sends these messages to configure RSS. Only supported if both PF
		* and VF drivers set the I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF bit during
		* configuration negotiation. If this is the case, then the RSS fields in
		* the VF resource struct are valid.
		* Both the key and LUT are initialized to 0 by the PF, meaning that
		* RSS is effectively disabled until set up by the VF.
		*/
		struct i40e_virtchnl_rss_key {
		u16 vsi_id;
		u16 key_len;
		u8 key[1]; /* RSS hash key, packed bytes */
		};

		struct i40e_virtchnl_rss_lut {
		u16 vsi_id;
		u16 lut_entries;
		u8 lut[1]; /* RSS lookup table*/
		};

		/* I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS
		* I40E_VIRTCHNL_OP_SET_RSS_HENA
		* VF sends these messages to get and set the hash filter enable bits for RSS.
		* By default, the PF sets these to all possible traffic types that the
		* hardware supports. The VF can query this value if it wants to change the
		* traffic types that are hashed by the hardware.
		* Traffic types are defined in the i40e_filter_pctype enum in i40e_type.h
		*/
		struct i40e_virtchnl_rss_hena {
		u64 hena;
		};

		/* I40E_VIRTCHNL_OP_EVENT
		* PF sends this message to inform the VF driver of events that may affect it.
		* No direct response is expected from the VF, though it may generate other
		* messages in response to this one.
		*/
		enum i40e_virtchnl_event_codes {
		I40E_VIRTCHNL_EVENT_UNKNOWN = 0,
		I40E_VIRTCHNL_EVENT_LINK_CHANGE,
		I40E_VIRTCHNL_EVENT_RESET_IMPENDING,
		I40E_VIRTCHNL_EVENT_PF_DRIVER_CLOSE,
		};
		#define I40E_PF_EVENT_SEVERITY_INFO 0
		#define I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM 255

		struct i40e_virtchnl_pf_event {
		enum i40e_virtchnl_event_codes event;
		union {
		struct {
		enum i40e_aq_link_speed link_speed;
		bool link_status;
		} link_event;
		} event_data;

		int severity;
		};

		/* I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP
		* VF uses this message to request PF to map IWARP vectors to IWARP queues.
		* The request for this originates from the VF IWARP driver through
		* a client interface between VF LAN and VF IWARP driver.
		* A vector could have an AEQ and CEQ attached to it although
		* there is a single AEQ per VF IWARP instance in which case
		* most vectors will have an INVALID_IDX for aeq and valid idx for ceq.
		* There will never be a case where there will be multiple CEQs attached
		* to a single vector.
		* PF configures interrupt mapping and returns status.
		*/

		/* HW does not define a type value for AEQ; only for RX/TX and CEQ.
		* In order for us to keep the interface simple, SW will define a
		* unique type value for AEQ.
		*/
		#define I40E_QUEUE_TYPE_PE_AEQ 0x80
		#define I40E_QUEUE_INVALID_IDX 0xFFFF

		struct i40e_virtchnl_iwarp_qv_info {
		u32 v_idx; /* msix_vector */
		u16 ceq_idx;
		u16 aeq_idx;
		u8 itr_idx;
		};

		struct i40e_virtchnl_iwarp_qvlist_info {
		u32 num_vectors;
		struct i40e_virtchnl_iwarp_qv_info qv_info[1];
		};

		/* VF reset states - these are written into the RSTAT register:
		* I40E_VFGEN_RSTAT1 on the PF
		* I40E_VFGEN_RSTAT on the VF
		* When the PF initiates a reset, it writes 0
		* When the reset is complete, it writes 1
		* When the PF detects that the VF has recovered, it writes 2
		* VF checks this register periodically to determine if a reset has occurred,
		* then polls it to know when the reset is complete.
		* If either the PF or VF reads the register while the hardware
		* is in a reset state, it will return DEADBEEF, which, when masked
		* will result in 3.
		*/
		enum i40e_vfr_states {
		I40E_VFR_INPROGRESS = 0,
		I40E_VFR_COMPLETED,
		I40E_VFR_VFACTIVE,
		I40E_VFR_UNKNOWN,
		};

		#endif /* _I40E_VIRTCHNL_H_ */