iidc/ice/irdma: Update IDC to support multiple consumers

In preparation of supporting more than a single core PCI driver
for RDMA, move ice specific structs like qset_params, qos_info
and qos_params from iidc_rdma.h to iidc_rdma_ice.h.

Previously, the ice driver was just exporting its entire PF struct
to the auxiliary driver, but since each core driver will have its own
different PF struct, implement a universal struct that all core drivers
can provide to the auxiliary driver through the probe call.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Co-developed-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Co-developed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Co-developed-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

2 files changed, 78 insertions, 58 deletions

diff --git a/include/linux/net/intel/iidc_rdma.h b/include/linux/net/intel/iidc_rdma.h
index 7f1910289534..8baad1082042 100644
--- a/include/linux/net/intel/iidc_rdma.h
+++ b/include/linux/net/intel/iidc_rdma.h
@@ -5,7 +5,6 @@
 #define _IIDC_RDMA_H_
 
 #include <linux/auxiliary_bus.h>
-#include <linux/dcbnl.h>
 #include <linux/device.h>
 #include <linux/if_ether.h>
 #include <linux/kernel.h>
@@ -17,14 +16,19 @@ enum iidc_rdma_event_type {
 	IIDC_RDMA_EVENT_AFTER_MTU_CHANGE,
 	IIDC_RDMA_EVENT_BEFORE_TC_CHANGE,
 	IIDC_RDMA_EVENT_AFTER_TC_CHANGE,
+	IIDC_RDMA_EVENT_WARN_RESET,
 	IIDC_RDMA_EVENT_CRIT_ERR,
 	IIDC_RDMA_EVENT_NBITS		/* must be last */
 };
 
+struct iidc_rdma_event {
+	DECLARE_BITMAP(type, IIDC_RDMA_EVENT_NBITS);
+	u32 reg;
+};
+
 enum iidc_rdma_reset_type {
-	IIDC_PFR,
-	IIDC_CORER,
-	IIDC_GLOBR,
+	IIDC_FUNC_RESET,
+	IIDC_DEV_RESET,
 };
 
 enum iidc_rdma_protocol {
@@ -32,53 +36,22 @@ enum iidc_rdma_protocol {
 	IIDC_RDMA_PROTOCOL_ROCEV2 = BIT(1),
 };
 
-#define IIDC_MAX_USER_PRIORITY		8
-#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_rdma_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_rdma_qos_params {
-	struct iidc_rdma_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[DSCP_MAX];
-};
-
-struct iidc_rdma_event {
-	DECLARE_BITMAP(type, IIDC_RDMA_EVENT_NBITS);
-	u32 reg;
+/* Structure to be populated by core LAN PCI driver */
+struct iidc_rdma_core_dev_info {
+	struct pci_dev *pdev; /* PCI device of corresponding to main function */
+	struct auxiliary_device *adev;
+	/* Current active RDMA protocol */
+	enum iidc_rdma_protocol rdma_protocol;
+	void *iidc_priv; /* elements unique to each driver */
 };
 
 /* 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_rdma_core_auxiliary_dev {
 	struct auxiliary_device adev;
-	struct ice_pf *pf;
+	struct iidc_rdma_core_dev_info *cdev_info;
 };
 
 /* structure representing the auxiliary driver. This struct is to be
@@ -88,12 +61,8 @@ struct iidc_rdma_core_auxiliary_dev {
  */
 struct iidc_rdma_core_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_rdma_event *event);
+	void (*event_handler)(struct iidc_rdma_core_dev_info *cdev,
+			      struct iidc_rdma_event *event);
 };
 
 #endif /* _IIDC_RDMA_H_*/
diff --git a/include/linux/net/intel/iidc_rdma_ice.h b/include/linux/net/intel/iidc_rdma_ice.h
index 78d10003d776..b40eed0e13fe 100644
--- a/include/linux/net/intel/iidc_rdma_ice.h
+++ b/include/linux/net/intel/iidc_rdma_ice.h
@@ -4,16 +4,67 @@
 #ifndef _IIDC_RDMA_ICE_H_
 #define _IIDC_RDMA_ICE_H_
 
-struct ice_pf;
+#include <linux/dcbnl.h>
 
-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,
+#define IIDC_MAX_USER_PRIORITY         8
+#define IIDC_DSCP_PFC_MODE             0x1
+
+/**
+ * struct iidc_rdma_qset_params - Struct to hold per RDMA Qset info
+ * @teid: TEID of the Qset node
+ * @qs_handle: SW index of the Qset, RDMA provides this
+ * @vport_id: VSI index
+ * @tc: Traffic Class branch the QSet should belong to
+ */
+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;
+	u16 qs_handle;
+	u16 vport_id;
+	u8 tc;
+};
+
+struct iidc_rdma_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_rdma_qos_params {
+	struct iidc_rdma_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[DSCP_MAX];
+};
+
+struct iidc_rdma_priv_dev_info {
+	u8 pf_id;
+	u16 vport_id;
+	struct net_device *netdev;
+	struct iidc_rdma_qos_params qos_info;
+	u8 __iomem *hw_addr;
+};
+
+int ice_add_rdma_qset(struct iidc_rdma_core_dev_info *cdev,
+		      struct iidc_rdma_qset_params *qset);
+int ice_del_rdma_qset(struct iidc_rdma_core_dev_info *cdev,
+		      struct iidc_rdma_qset_params *qset);
+int ice_rdma_request_reset(struct iidc_rdma_core_dev_info *cdev,
 			   enum iidc_rdma_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_rdma_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);
+int ice_rdma_update_vsi_filter(struct iidc_rdma_core_dev_info *cdev, u16 vsi_id,
+			       bool enable);
+int ice_alloc_rdma_qvector(struct iidc_rdma_core_dev_info *cdev,
+			   struct msix_entry *entry);
+void ice_free_rdma_qvector(struct iidc_rdma_core_dev_info *cdev,
+			   struct msix_entry *entry);
 
 #endif /* _IIDC_RDMA_ICE_H_*/