IB/ehca: Add driver for IBM eHCA InfiniBand adapters

Add a driver for IBM GX bus InfiniBand adapters, which are usable with
some pSeries/System p systems.

Signed-off-by: Heiko J Schick <schickhj.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 140 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.h b/drivers/infiniband/hw/ehca/ehca_mrmw.h
new file mode 100644
index 000000000000..d936e40a5748
--- /dev/null
+++ b/drivers/infiniband/hw/ehca/ehca_mrmw.h
@@ -0,0 +1,140 @@
+/*
+ *  IBM eServer eHCA Infiniband device driver for Linux on POWER
+ *
+ *  MR/MW declarations and inline functions
+ *
+ *  Authors: Dietmar Decker <ddecker@de.ibm.com>
+ *           Christoph Raisch <raisch@de.ibm.com>
+ *
+ *  Copyright (c) 2005 IBM Corporation
+ *
+ *  All rights reserved.
+ *
+ *  This source code is distributed under a dual license of GPL v2.0 and OpenIB
+ *  BSD.
+ *
+ * OpenIB BSD License
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+
+#ifndef _EHCA_MRMW_H_
+#define _EHCA_MRMW_H_
+
+int ehca_reg_mr(struct ehca_shca *shca,
+                struct ehca_mr *e_mr,
+                u64 *iova_start,
+                u64 size,
+                int acl,
+                struct ehca_pd *e_pd,
+                struct ehca_mr_pginfo *pginfo,
+                u32 *lkey,
+                u32 *rkey);
+
+int ehca_reg_mr_rpages(struct ehca_shca *shca,
+                       struct ehca_mr *e_mr,
+                       struct ehca_mr_pginfo *pginfo);
+
+int ehca_rereg_mr(struct ehca_shca *shca,
+                  struct ehca_mr *e_mr,
+                  u64 *iova_start,
+                  u64 size,
+                  int mr_access_flags,
+                  struct ehca_pd *e_pd,
+                  struct ehca_mr_pginfo *pginfo,
+                  u32 *lkey,
+                  u32 *rkey);
+
+int ehca_unmap_one_fmr(struct ehca_shca *shca,
+                       struct ehca_mr *e_fmr);
+
+int ehca_reg_smr(struct ehca_shca *shca,
+                 struct ehca_mr *e_origmr,
+                 struct ehca_mr *e_newmr,
+                 u64 *iova_start,
+                 int acl,
+                 struct ehca_pd *e_pd,
+                 u32 *lkey,
+                 u32 *rkey);
+
+int ehca_reg_internal_maxmr(struct ehca_shca *shca,
+                            struct ehca_pd *e_pd,
+                            struct ehca_mr **maxmr);
+
+int ehca_reg_maxmr(struct ehca_shca *shca,
+                   struct ehca_mr *e_newmr,
+                   u64 *iova_start,
+                   int acl,
+                   struct ehca_pd *e_pd,
+                   u32 *lkey,
+                   u32 *rkey);
+
+int ehca_dereg_internal_maxmr(struct ehca_shca *shca);
+
+int ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array,
+                                  int num_phys_buf,
+                                  u64 *iova_start,
+                                  u64 *size);
+
+int ehca_fmr_check_page_list(struct ehca_mr *e_fmr,
+                             u64 *page_list,
+                             int list_len);
+
+int ehca_set_pagebuf(struct ehca_mr *e_mr,
+                     struct ehca_mr_pginfo *pginfo,
+                     u32 number,
+                     u64 *kpage);
+
+int ehca_set_pagebuf_1(struct ehca_mr *e_mr,
+                       struct ehca_mr_pginfo *pginfo,
+                       u64 *rpage);
+
+int ehca_mr_is_maxmr(u64 size,
+                     u64 *iova_start);
+
+void ehca_mrmw_map_acl(int ib_acl,
+                       u32 *hipz_acl);
+
+void ehca_mrmw_set_pgsize_hipz_acl(u32 *hipz_acl);
+
+void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl,
+                               int *ib_acl);
+
+int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc);
+
+int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc);
+
+int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc);
+
+int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc);
+
+int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc);
+
+int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc);
+
+int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc);
+
+void ehca_mr_deletenew(struct ehca_mr *mr);
+
+#endif  /*_EHCA_MRMW_H_*/