forked from mirrors/linux
3e0d3cb3fb
Move responsibility of MSI-X requesting for RDMA feature from ice driver to irdma driver. It is done to allow simple fallback when there is not enough MSI-X available. Change amount of MSI-X used for control from 4 to 1, as it isn't needed to have more than one MSI-X for this purpose. Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
109 lines
3 KiB
C
109 lines
3 KiB
C
/* 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,
|
|
};
|
|
|
|
enum iidc_rdma_protocol {
|
|
IIDC_RDMA_PROTOCOL_IWARP = BIT(0),
|
|
IIDC_RDMA_PROTOCOL_ROCEV2 = BIT(1),
|
|
};
|
|
|
|
#define IIDC_MAX_USER_PRIORITY 8
|
|
#define IIDC_MAX_DSCP_MAPPING 64
|
|
#define IIDC_DSCP_PFC_MODE 0x1
|
|
|
|
/* 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;
|
|
u8 pfc_mode;
|
|
u8 dscp_map[IIDC_MAX_DSCP_MAPPING];
|
|
};
|
|
|
|
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);
|
|
int ice_alloc_rdma_qvector(struct ice_pf *pf, struct msix_entry *entry);
|
|
void ice_free_rdma_qvector(struct ice_pf *pf, struct msix_entry *entry);
|
|
|
|
/* 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_*/
|