Commit e860fa9b authored by Dave Ertman's avatar Dave Ertman Committed by Tony Nguyen
Browse files

iidc: Introduce iidc.h 



Introduce a shared header file used by the 'ice' Intel networking driver
providing RDMA support and the 'irdma' driver to provide a private
interface.

Signed-off-by: default avatarDave Ertman <david.m.ertman@intel.com>
Signed-off-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent 125217e0

MAINTAINERS

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@@ -9130,6 +9130,7 @@ F: Documentation/networking/device_drivers/ethernet/intel/ 
F:	drivers/net/ethernet/intel/

F:	drivers/net/ethernet/intel/*/

F:	include/linux/avf/virtchnl.h

F:	include/linux/net/intel/iidc.h









INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)









M:	Maik Broemme <mbroemme@libmpq.org>
































include/linux/net/intel/iidc.h
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/* SPDX-License-Identifier: GPL-2.0 */









/* Copyright (C) 2021, Intel Corporation. */



















#ifndef _IIDC_H_









#define _IIDC_H_



















#include <linux/auxiliary_bus.h>









#include <linux/dcbnl.h>









#include <linux/device.h>









#include <linux/if_ether.h>









#include <linux/kernel.h>









#include <linux/netdevice.h>



















enum iidc_event_type {









	IIDC_EVENT_BEFORE_MTU_CHANGE,









	IIDC_EVENT_AFTER_MTU_CHANGE,









	IIDC_EVENT_BEFORE_TC_CHANGE,









	IIDC_EVENT_AFTER_TC_CHANGE,









	IIDC_EVENT_CRIT_ERR,









	IIDC_EVENT_NBITS		/* must be last */









};



















enum iidc_reset_type {









	IIDC_PFR,









	IIDC_CORER,









	IIDC_GLOBR,









};



















#define IIDC_MAX_USER_PRIORITY		8



















/* Struct to hold per RDMA Qset info */









struct iidc_rdma_qset_params {









	/* Qset TEID returned to the RDMA driver in









	 * ice_add_rdma_qset and used by RDMA driver









	 * for calls to ice_del_rdma_qset









	 */









	u32 teid;	/* Qset TEID */









	u16 qs_handle; /* RDMA driver provides this */









	u16 vport_id; /* VSI index */









	u8 tc; /* TC branch the Qset should belong to */









};



















struct iidc_qos_info {









	u64 tc_ctx;









	u8 rel_bw;









	u8 prio_type;









	u8 egress_virt_up;









	u8 ingress_virt_up;









};



















/* Struct to pass QoS info */









struct iidc_qos_params {









	struct iidc_qos_info tc_info[IEEE_8021QAZ_MAX_TCS];









	u8 up2tc[IIDC_MAX_USER_PRIORITY];









	u8 vport_relative_bw;









	u8 vport_priority_type;









	u8 num_tc;









};



















struct iidc_event {









	DECLARE_BITMAP(type, IIDC_EVENT_NBITS);









	u32 reg;









};



















struct ice_pf;



















int ice_add_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset);









int ice_del_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset);









int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type);









int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable);









void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos);



















#define IIDC_RDMA_ROCE_NAME	"roce"



















/* Structure representing auxiliary driver tailored information about the core









 * PCI dev, each auxiliary driver using the IIDC interface will have an









 * instance of this struct dedicated to it.









 */



















struct iidc_auxiliary_dev {









	struct auxiliary_device adev;









	struct ice_pf *pf;









};



















/* structure representing the auxiliary driver. This struct is to be









 * allocated and populated by the auxiliary driver's owner. The core PCI









 * driver will access these ops by performing a container_of on the









 * auxiliary_device->dev.driver.









 */









struct iidc_auxiliary_drv {









	struct auxiliary_driver adrv;









	/* This event_handler is meant to be a blocking call.  For instance,









	 * when a BEFORE_MTU_CHANGE event comes in, the event_handler will not









	 * return until the auxiliary driver is ready for the MTU change to









	 * happen.









	 */









	void (*event_handler)(struct ice_pf *pf, struct iidc_event *event);









};



















#endif /* _IIDC_H_*/