qedr: Add support for RoCE HW init

Allocate and setup RoCE resources, interrupts and completion queues.
Adds device attributes.

Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 123 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h
index 801417080f11..1adbebb887eb 100644
--- a/drivers/infiniband/hw/qedr/qedr.h
+++ b/drivers/infiniband/hw/qedr/qedr.h
@@ -35,7 +35,10 @@
 #include <linux/pci.h>
 #include <rdma/ib_addr.h>
 #include <linux/qed/qed_if.h>
+#include <linux/qed/qed_chain.h>
+#include <linux/qed/qed_roce_if.h>
 #include <linux/qed/qede_roce.h>
+#include "qedr_hsi.h"
 
 #define QEDR_MODULE_VERSION	"8.10.10.0"
 #define QEDR_NODE_DESC "QLogic 579xx RoCE HCA"
@@ -47,6 +50,60 @@
 
 #define QEDR_MSG_INIT "INIT"
 
+struct qedr_dev;
+
+struct qedr_cnq {
+	struct qedr_dev		*dev;
+	struct qed_chain	pbl;
+	struct qed_sb_info	*sb;
+	char			name[32];
+	u64			n_comp;
+	__le16			*hw_cons_ptr;
+	u8			index;
+};
+
+#define QEDR_MAX_SGID 128
+
+struct qedr_device_attr {
+	u32	vendor_id;
+	u32	vendor_part_id;
+	u32	hw_ver;
+	u64	fw_ver;
+	u64	node_guid;
+	u64	sys_image_guid;
+	u8	max_cnq;
+	u8	max_sge;
+	u16	max_inline;
+	u32	max_sqe;
+	u32	max_rqe;
+	u8	max_qp_resp_rd_atomic_resc;
+	u8	max_qp_req_rd_atomic_resc;
+	u64	max_dev_resp_rd_atomic_resc;
+	u32	max_cq;
+	u32	max_qp;
+	u32	max_mr;
+	u64	max_mr_size;
+	u32	max_cqe;
+	u32	max_mw;
+	u32	max_fmr;
+	u32	max_mr_mw_fmr_pbl;
+	u64	max_mr_mw_fmr_size;
+	u32	max_pd;
+	u32	max_ah;
+	u8	max_pkey;
+	u32	max_srq;
+	u32	max_srq_wr;
+	u8	max_srq_sge;
+	u8	max_stats_queues;
+	u32	dev_caps;
+
+	u64	page_size_caps;
+	u8	dev_ack_delay;
+	u32	reserved_lkey;
+	u32	bad_pkey_counter;
+	struct qed_rdma_events events;
+};
+
 struct qedr_dev {
 	struct ib_device	ibdev;
 	struct qed_dev		*cdev;
@@ -55,7 +112,73 @@ struct qedr_dev {
 
 	enum ib_atomic_cap	atomic_cap;
 
+	void *rdma_ctx;
+	struct qedr_device_attr attr;
+
+	const struct qed_rdma_ops *ops;
+	struct qed_int_info	int_info;
+
+	struct qed_sb_info	*sb_array;
+	struct qedr_cnq		*cnq_array;
+	int			num_cnq;
+	int			sb_start;
+
+	void __iomem		*db_addr;
+	u64			db_phys_addr;
+	u32			db_size;
+	u16			dpi;
+
+	union ib_gid *sgid_tbl;
+
+	/* Lock for sgid table */
+	spinlock_t sgid_lock;
+
+	u64			guid;
+
 	u32			dp_module;
 	u8			dp_level;
+	u8			num_hwfns;
 };
+
+#define QEDR_MAX_SQ_PBL			(0x8000)
+#define QEDR_MAX_SQ_PBL_ENTRIES		(0x10000 / sizeof(void *))
+#define QEDR_SQE_ELEMENT_SIZE		(sizeof(struct rdma_sq_sge))
+#define QEDR_MAX_SQE_ELEMENTS_PER_SQE	(ROCE_REQ_MAX_SINGLE_SQ_WQE_SIZE / \
+					 QEDR_SQE_ELEMENT_SIZE)
+#define QEDR_MAX_SQE_ELEMENTS_PER_PAGE	((RDMA_RING_PAGE_SIZE) / \
+					 QEDR_SQE_ELEMENT_SIZE)
+#define QEDR_MAX_SQE			((QEDR_MAX_SQ_PBL_ENTRIES) *\
+					 (RDMA_RING_PAGE_SIZE) / \
+					 (QEDR_SQE_ELEMENT_SIZE) /\
+					 (QEDR_MAX_SQE_ELEMENTS_PER_SQE))
+/* RQ */
+#define QEDR_MAX_RQ_PBL			(0x2000)
+#define QEDR_MAX_RQ_PBL_ENTRIES		(0x10000 / sizeof(void *))
+#define QEDR_RQE_ELEMENT_SIZE		(sizeof(struct rdma_rq_sge))
+#define QEDR_MAX_RQE_ELEMENTS_PER_RQE	(RDMA_MAX_SGE_PER_RQ_WQE)
+#define QEDR_MAX_RQE_ELEMENTS_PER_PAGE	((RDMA_RING_PAGE_SIZE) / \
+					 QEDR_RQE_ELEMENT_SIZE)
+#define QEDR_MAX_RQE			((QEDR_MAX_RQ_PBL_ENTRIES) *\
+					 (RDMA_RING_PAGE_SIZE) / \
+					 (QEDR_RQE_ELEMENT_SIZE) /\
+					 (QEDR_MAX_RQE_ELEMENTS_PER_RQE))
+
+#define QEDR_CQE_SIZE	(sizeof(union rdma_cqe))
+#define QEDR_MAX_CQE_PBL_SIZE (512 * 1024)
+#define QEDR_MAX_CQE_PBL_ENTRIES (((QEDR_MAX_CQE_PBL_SIZE) / \
+				  sizeof(u64)) - 1)
+#define QEDR_MAX_CQES ((u32)((QEDR_MAX_CQE_PBL_ENTRIES) * \
+			     (QED_CHAIN_PAGE_SIZE) / QEDR_CQE_SIZE))
+
+#define QEDR_ROCE_MAX_CNQ_SIZE		(0x4000)
+
+#define QEDR_MAX_PORT			(1)
+
+#define QEDR_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME)
+
+static inline struct qedr_dev *get_qedr_dev(struct ib_device *ibdev)
+{
+	return container_of(ibdev, struct qedr_dev, ibdev);
+}
+
 #endif