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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/infiniband/hw/efa/efa.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/infiniband/hw/efa/efa.h')
-rw-r--r--drivers/infiniband/hw/efa/efa.h182
1 files changed, 182 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/efa/efa.h b/drivers/infiniband/hw/efa/efa.h
new file mode 100644
index 000000000..7352a1f5d
--- /dev/null
+++ b/drivers/infiniband/hw/efa/efa.h
@@ -0,0 +1,182 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+/*
+ * Copyright 2018-2021 Amazon.com, Inc. or its affiliates. All rights reserved.
+ */
+
+#ifndef _EFA_H_
+#define _EFA_H_
+
+#include <linux/bitops.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+
+#include <rdma/efa-abi.h>
+#include <rdma/ib_verbs.h>
+
+#include "efa_com_cmd.h"
+
+#define DRV_MODULE_NAME "efa"
+#define DEVICE_NAME "Elastic Fabric Adapter (EFA)"
+
+#define EFA_IRQNAME_SIZE 40
+
+#define EFA_MGMNT_MSIX_VEC_IDX 0
+#define EFA_COMP_EQS_VEC_BASE 1
+
+struct efa_irq {
+ irq_handler_t handler;
+ void *data;
+ u32 irqn;
+ u32 vector;
+ cpumask_t affinity_hint_mask;
+ char name[EFA_IRQNAME_SIZE];
+};
+
+/* Don't use anything other than atomic64 */
+struct efa_stats {
+ atomic64_t alloc_pd_err;
+ atomic64_t create_qp_err;
+ atomic64_t create_cq_err;
+ atomic64_t reg_mr_err;
+ atomic64_t alloc_ucontext_err;
+ atomic64_t create_ah_err;
+ atomic64_t mmap_err;
+ atomic64_t keep_alive_rcvd;
+};
+
+struct efa_dev {
+ struct ib_device ibdev;
+ struct efa_com_dev edev;
+ struct pci_dev *pdev;
+ struct efa_com_get_device_attr_result dev_attr;
+
+ u64 reg_bar_addr;
+ u64 reg_bar_len;
+ u64 mem_bar_addr;
+ u64 mem_bar_len;
+ u64 db_bar_addr;
+ u64 db_bar_len;
+
+ int admin_msix_vector_idx;
+ struct efa_irq admin_irq;
+
+ struct efa_stats stats;
+
+ /* Array of completion EQs */
+ struct efa_eq *eqs;
+ unsigned int neqs;
+
+ /* Only stores CQs with interrupts enabled */
+ struct xarray cqs_xa;
+};
+
+struct efa_ucontext {
+ struct ib_ucontext ibucontext;
+ u16 uarn;
+};
+
+struct efa_pd {
+ struct ib_pd ibpd;
+ u16 pdn;
+};
+
+struct efa_mr {
+ struct ib_mr ibmr;
+ struct ib_umem *umem;
+};
+
+struct efa_cq {
+ struct ib_cq ibcq;
+ struct efa_ucontext *ucontext;
+ dma_addr_t dma_addr;
+ void *cpu_addr;
+ struct rdma_user_mmap_entry *mmap_entry;
+ struct rdma_user_mmap_entry *db_mmap_entry;
+ size_t size;
+ u16 cq_idx;
+ /* NULL when no interrupts requested */
+ struct efa_eq *eq;
+};
+
+struct efa_qp {
+ struct ib_qp ibqp;
+ dma_addr_t rq_dma_addr;
+ void *rq_cpu_addr;
+ size_t rq_size;
+ enum ib_qp_state state;
+
+ /* Used for saving mmap_xa entries */
+ struct rdma_user_mmap_entry *sq_db_mmap_entry;
+ struct rdma_user_mmap_entry *llq_desc_mmap_entry;
+ struct rdma_user_mmap_entry *rq_db_mmap_entry;
+ struct rdma_user_mmap_entry *rq_mmap_entry;
+
+ u32 qp_handle;
+ u32 max_send_wr;
+ u32 max_recv_wr;
+ u32 max_send_sge;
+ u32 max_recv_sge;
+ u32 max_inline_data;
+};
+
+struct efa_ah {
+ struct ib_ah ibah;
+ u16 ah;
+ /* dest_addr */
+ u8 id[EFA_GID_SIZE];
+};
+
+struct efa_eq {
+ struct efa_com_eq eeq;
+ struct efa_irq irq;
+};
+
+int efa_query_device(struct ib_device *ibdev,
+ struct ib_device_attr *props,
+ struct ib_udata *udata);
+int efa_query_port(struct ib_device *ibdev, u32 port,
+ struct ib_port_attr *props);
+int efa_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
+ int qp_attr_mask,
+ struct ib_qp_init_attr *qp_init_attr);
+int efa_query_gid(struct ib_device *ibdev, u32 port, int index,
+ union ib_gid *gid);
+int efa_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
+ u16 *pkey);
+int efa_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
+int efa_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
+int efa_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
+int efa_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata);
+int efa_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
+int efa_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
+ struct ib_udata *udata);
+struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
+ u64 virt_addr, int access_flags,
+ struct ib_udata *udata);
+struct ib_mr *efa_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start,
+ u64 length, u64 virt_addr,
+ int fd, int access_flags,
+ struct ib_udata *udata);
+int efa_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
+int efa_get_port_immutable(struct ib_device *ibdev, u32 port_num,
+ struct ib_port_immutable *immutable);
+int efa_alloc_ucontext(struct ib_ucontext *ibucontext, struct ib_udata *udata);
+void efa_dealloc_ucontext(struct ib_ucontext *ibucontext);
+int efa_mmap(struct ib_ucontext *ibucontext,
+ struct vm_area_struct *vma);
+void efa_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
+int efa_create_ah(struct ib_ah *ibah,
+ struct rdma_ah_init_attr *init_attr,
+ struct ib_udata *udata);
+int efa_destroy_ah(struct ib_ah *ibah, u32 flags);
+int efa_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
+ int qp_attr_mask, struct ib_udata *udata);
+enum rdma_link_layer efa_port_link_layer(struct ib_device *ibdev,
+ u32 port_num);
+struct rdma_hw_stats *efa_alloc_hw_port_stats(struct ib_device *ibdev, u32 port_num);
+struct rdma_hw_stats *efa_alloc_hw_device_stats(struct ib_device *ibdev);
+int efa_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats,
+ u32 port_num, int index);
+
+#endif /* _EFA_H_ */