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iidc: Introduce iidc.h

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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: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Dave Ertman 2021-05-20 09:37:48 -05:00 committed by Tony Nguyen
parent 125217e096
commit e860fa9b69
2 changed files with 101 additions and 0 deletions
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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>

100
include/linux/net/intel/iidc.h Normal file
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@ -0,0 +1,100 @@
/* 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_*/