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authorDave Ertman <david.m.ertman@intel.com>2021-05-20 09:37:48 -0500
committerTony Nguyen <anthony.l.nguyen@intel.com>2021-05-28 20:11:13 -0700
commite860fa9b69e1bf077ba4725ee4be7b9443a3682a (patch)
tree951dc841de0306cf71d07780599805fb17f0079f /include/linux/net
parent125217e0967fc905be35a3b2c9ba4db9a8616b92 (diff)
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: 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>
Diffstat (limited to 'include/linux/net')
-rw-r--r--include/linux/net/intel/iidc.h100
1 files changed, 100 insertions, 0 deletions
diff --git a/include/linux/net/intel/iidc.h b/include/linux/net/intel/iidc.h
new file mode 100644
index 000000000000..e32f6712aee0
--- /dev/null
+++ b/include/linux/net/intel/iidc.h
@@ -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_*/