RDMA/bnxt_re: Add bnxt_re RoCE driver
This patch introduces the RoCE driver for the Broadcom
NetXtreme-E 10/25/40/50G RoCE HCAs.
The RoCE driver is a two part driver that relies on the parent
bnxt_en NIC driver to operate. The changes needed in the bnxt_en
driver have already been incorporated via Dave Miller's net tree
into the mainline kernel.
The vendor official git repository for this driver is available
on github as:
https://github.com/Broadcom/linux-rdma-nxt/
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.h b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
new file mode 100644
index 0000000..1442a61
--- /dev/null
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
@@ -0,0 +1,160 @@
+/*
+ * Broadcom NetXtreme-E RoCE driver.
+ *
+ * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
+ * Broadcom refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Description: Slow Path Operators (header)
+ *
+ */
+
+#ifndef __BNXT_QPLIB_SP_H__
+#define __BNXT_QPLIB_SP_H__
+
+struct bnxt_qplib_dev_attr {
+ char fw_ver[32];
+ u16 max_sgid;
+ u16 max_mrw;
+ u32 max_qp;
+#define BNXT_QPLIB_MAX_OUT_RD_ATOM 126
+ u32 max_qp_rd_atom;
+ u32 max_qp_init_rd_atom;
+ u32 max_qp_wqes;
+ u32 max_qp_sges;
+ u32 max_cq;
+ u32 max_cq_wqes;
+ u32 max_cq_sges;
+ u32 max_mr;
+ u64 max_mr_size;
+ u32 max_pd;
+ u32 max_mw;
+ u32 max_raw_ethy_qp;
+ u32 max_ah;
+ u32 max_fmr;
+ u32 max_map_per_fmr;
+ u32 max_srq;
+ u32 max_srq_wqes;
+ u32 max_srq_sges;
+ u32 max_pkey;
+ u32 max_inline_data;
+ u32 l2_db_size;
+ u8 tqm_alloc_reqs[MAX_TQM_ALLOC_REQ];
+};
+
+struct bnxt_qplib_pd {
+ u32 id;
+};
+
+struct bnxt_qplib_gid {
+ u8 data[16];
+};
+
+struct bnxt_qplib_ah {
+ struct bnxt_qplib_gid dgid;
+ struct bnxt_qplib_pd *pd;
+ u32 id;
+ u8 sgid_index;
+ /* For Query AH if the hw table and SW table are differnt */
+ u8 host_sgid_index;
+ u8 traffic_class;
+ u32 flow_label;
+ u8 hop_limit;
+ u8 sl;
+ u8 dmac[6];
+ u16 vlan_id;
+ u8 nw_type;
+};
+
+struct bnxt_qplib_mrw {
+ struct bnxt_qplib_pd *pd;
+ int type;
+ u32 flags;
+#define BNXT_QPLIB_FR_PMR 0x80000000
+ u32 lkey;
+ u32 rkey;
+#define BNXT_QPLIB_RSVD_LKEY 0xFFFFFFFF
+ u64 va;
+ u64 total_size;
+ u32 npages;
+ u64 mr_handle;
+ struct bnxt_qplib_hwq hwq;
+};
+
+struct bnxt_qplib_frpl {
+ int max_pg_ptrs;
+ struct bnxt_qplib_hwq hwq;
+};
+
+#define BNXT_QPLIB_ACCESS_LOCAL_WRITE BIT(0)
+#define BNXT_QPLIB_ACCESS_REMOTE_READ BIT(1)
+#define BNXT_QPLIB_ACCESS_REMOTE_WRITE BIT(2)
+#define BNXT_QPLIB_ACCESS_REMOTE_ATOMIC BIT(3)
+#define BNXT_QPLIB_ACCESS_MW_BIND BIT(4)
+#define BNXT_QPLIB_ACCESS_ZERO_BASED BIT(5)
+#define BNXT_QPLIB_ACCESS_ON_DEMAND BIT(6)
+
+int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
+ struct bnxt_qplib_gid *gid);
+int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
+ struct bnxt_qplib_gid *gid, bool update);
+int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
+ struct bnxt_qplib_gid *gid, u8 *mac, u16 vlan_id,
+ bool update, u32 *index);
+int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
+ u16 *pkey);
+int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
+ bool update);
+int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
+ bool update);
+int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
+ struct bnxt_qplib_dev_attr *attr);
+int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah);
+int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah);
+int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_mrw *mrw);
+int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
+ bool block);
+int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
+ u64 *pbl_tbl, int num_pbls, bool block);
+int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr);
+int bnxt_qplib_alloc_fast_reg_mr(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_mrw *mr, int max);
+int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_frpl *frpl, int max);
+int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
+ struct bnxt_qplib_frpl *frpl);
+int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids);
+#endif /* __BNXT_QPLIB_SP_H__*/