Header file for the various commands that can be sent through admin queue.
This includes queue create/modify/destroy, setting up and remove protection
domains, address handlers, and memory registration, etc.
Signed-off-by: Gal Pressman <galpress@xxxxxxxxxx>
---
drivers/infiniband/hw/efa/efa_com_cmd.h | 217 ++++++++++++++++++++++++++++++++
1 file changed, 217 insertions(+)
create mode 100644 drivers/infiniband/hw/efa/efa_com_cmd.h
diff --git a/drivers/infiniband/hw/efa/efa_com_cmd.h b/drivers/infiniband/hw/efa/efa_com_cmd.h
new file mode 100644
index 000000000000..307f03936049
--- /dev/null
+++ b/drivers/infiniband/hw/efa/efa_com_cmd.h
@@ -0,0 +1,217 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+/*
+ * Copyright 2018 Amazon.com, Inc. or its affiliates.
+ */
+
+#ifndef _EFA_COM_CMD_H_
+#define _EFA_COM_CMD_H_
+
+#include "efa_com.h"
+
+#define EFA_GID_SIZE 16
+
+struct efa_com_create_qp_params {
+ u32 pd;
+ u8 qp_type;
+ u64 rq_base_addr;
+ u32 send_cq_idx;
+ u32 recv_cq_idx;
+ /*
+ * Send descriptor ring size in bytes,
+ * sufficient for user-provided number of WQEs and SGL size
+ */
+ u32 sq_ring_size_in_bytes;
+ /* Max number of WQEs that will be posted on send queue */
+ u32 sq_depth;
+ /* Recv descriptor ring size in bytes, sufficient */
+ u32 rq_ring_size_in_bytes;
+};
+
+struct efa_com_create_qp_result {
+ u32 qp_handle;
+ u32 qp_num;
+ u32 sq_db_offset;
+ u32 rq_db_offset;
+ u32 llq_descriptors_offset;
+ u16 send_sub_cq_idx;
+ u16 recv_sub_cq_idx;
+};
+
+struct efa_com_destroy_qp_params {
+ u32 qp_handle;
+};
+
+struct efa_com_create_cq_params {
+ /* completion queue depth in # of entries */
+ u16 cq_depth;
+ u8 entry_size_in_bytes;
+ /* cq physical base address in OS memory */
+ dma_addr_t dma_addr;
+ u16 num_sub_cqs;
+};
+
+struct efa_com_create_cq_result {
+ /* cq identifier */
+ u16 cq_idx;
+ /* actual cq depth in # of entries */
+ u16 actual_depth;
+};
+
+struct efa_com_destroy_cq_params {
+ u16 cq_idx;
+};
+
+struct efa_com_create_ah_params {
+ /* Destination address in network byte order */
+ u8 dest_addr[EFA_GID_SIZE];
+};
+
+struct efa_com_create_ah_result {
+ u16 ah;
+};
+
+struct efa_com_destroy_ah_params {
+ u16 ah;
+};
+
+struct efa_com_get_network_attr_result {
+ u8 addr[EFA_GID_SIZE];
+ u32 mtu;
+};
+
+struct efa_com_get_device_attr_result {
+ u32 fw_version;
+ u32 admin_api_version;
+ u32 vendor_id;
+ u32 vendor_part_id;
+ u32 device_version;
+ u32 supported_features;
+ u32 phys_addr_width;
+ u32 virt_addr_width;
+ u32 max_sq;
+ u16 max_sq_depth;
+ u32 max_rq;
+ u16 max_rq_depth;
+ u32 max_cq;
+ u32 max_cq_depth;
+ u32 inline_buf_size;
+ u16 max_sq_sge;
+ u16 max_rq_sge;
+ u32 max_mr;
+ u64 max_mr_pages;
+ u64 page_size_cap;
+ u32 max_pd;
+ u32 max_ah;
+ u16 sub_cqs_per_cq;
+ u8 db_bar;
+};
+
+struct efa_com_get_hw_hints_result {
+ u16 mmio_read_timeout;
+ u16 driver_watchdog_timeout;
+ u16 admin_completion_timeout;
+ u16 poll_interval;
+ u32 reserved[4];
+};
+
+struct efa_com_mem_addr {
+ u32 mem_addr_low;
+ u32 mem_addr_high;
+};
+
+/* Used at indirect mode page list chunks for chaining */
+struct efa_com_ctrl_buff_info {
+ /* indicates length of the buffer pointed by control_buffer_address. */
+ u32 length;
+ /* points to control buffer (direct or indirect) */
+ struct efa_com_mem_addr address;
+};
+
+struct efa_com_reg_mr_params {
+ /* Protection Domain */
+ u16 pd;
+ /* Memory region length, in bytes. */
+ u64 mr_length_in_bytes;
+ /*
+ * phys_page_size_shift - page size is (1 << phys_page_size_shift)
+ * Page size is used for building the Virtual to Physical
+ * address mapping
+ */
+ u8 page_shift;
+ /*
+ * permissions
+ * 0: local_write_enable - Write permissions: value of 1 needed
+ * for RQ buffers and for RDMA write:1: reserved1 - remote
+ * access flags, etc
+ */
+ u8 permissions;
+ bool inline_pbl;
+ bool indirect;
+ /* number of pages in PBL (redundant, could be calculated) */
+ u32 page_num;
+ /* IO Virtual Address associated with this MR. */
+ u64 iova;
+ /* words 8:15: Physical Buffer List, each element is page-aligned. */
+ union {
+ /*
+ * Inline array of physical addresses of app pages
+ * (optimization for short region reservations)
+ */
+ u64 inline_pbl_array[4];
+ /*
+ * Describes the next physically contiguous chunk of indirect
+ * page list. A page list contains physical addresses of command
+ * data pages. Data pages are 4KB; page list chunks are
+ * variable-sized.
+ */
+ struct efa_com_ctrl_buff_info pbl;
+ } pbl;
+};
+
+struct efa_com_reg_mr_result {
+ /*
+ * To be used in conjunction with local buffers references in SQ and
+ * RQ WQE
+ */
+ u32 l_key;
+ /*
+ * To be used in incoming RDMA semantics messages to refer to remotely
+ * accessed memory region
+ */
+ u32 r_key;
+};
+
+struct efa_com_dereg_mr_params {
+ u32 l_key;
+};
+
+void efa_com_set_dma_addr(dma_addr_t addr, u32 *addr_high, u32 *addr_low);
+int efa_com_create_qp(struct efa_com_dev *edev,
+ struct efa_com_create_qp_params *params,
+ struct efa_com_create_qp_result *res);
+int efa_com_destroy_qp(struct efa_com_dev *edev,
+ struct efa_com_destroy_qp_params *params);
+int efa_com_create_cq(struct efa_com_dev *edev,
+ struct efa_com_create_cq_params *params,
+ struct efa_com_create_cq_result *result);
+int efa_com_destroy_cq(struct efa_com_dev *edev,
+ struct efa_com_destroy_cq_params *params);
+int efa_com_register_mr(struct efa_com_dev *edev,
+ struct efa_com_reg_mr_params *params,
+ struct efa_com_reg_mr_result *result);
+int efa_com_dereg_mr(struct efa_com_dev *edev,
+ struct efa_com_dereg_mr_params *params);
+int efa_com_create_ah(struct efa_com_dev *edev,
+ struct efa_com_create_ah_params *params,
+ struct efa_com_create_ah_result *result);
+int efa_com_destroy_ah(struct efa_com_dev *edev,
+ struct efa_com_destroy_ah_params *params);
+int efa_com_get_network_attr(struct efa_com_dev *edev,
+ struct efa_com_get_network_attr_result *result);
+int efa_com_get_device_attr(struct efa_com_dev *edev,
+ struct efa_com_get_device_attr_result *result);
+int efa_com_get_hw_hints(struct efa_com_dev *edev,
+ struct efa_com_get_hw_hints_result *result);
+int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups);
+
+#endif /* _EFA_COM_CMD_H_ */
--
2.7.4
