Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 101 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/cxgb3/iwch_mem.c b/drivers/infiniband/hw/cxgb3/iwch_mem.c
new file mode 100644
index 000000000..12886b1b4
--- /dev/null
+++ b/drivers/infiniband/hw/cxgb3/iwch_mem.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
+ *
+ * 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
+ * OpenIB.org BSD license below:
+ *
+ *     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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <linux/slab.h>
+#include <asm/byteorder.h>
+
+#include <rdma/iw_cm.h>
+#include <rdma/ib_verbs.h>
+
+#include "cxio_hal.h"
+#include "cxio_resource.h"
+#include "iwch.h"
+#include "iwch_provider.h"
+
+static int iwch_finish_mem_reg(struct iwch_mr *mhp, u32 stag)
+{
+	u32 mmid;
+
+	mhp->attr.state = 1;
+	mhp->attr.stag = stag;
+	mmid = stag >> 8;
+	mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
+	pr_debug("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp);
+	return insert_handle(mhp->rhp, &mhp->rhp->mmidr, mhp, mmid);
+}
+
+int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
+		      struct iwch_mr *mhp, int shift)
+{
+	u32 stag;
+	int ret;
+
+	if (cxio_register_phys_mem(&rhp->rdev,
+				   &stag, mhp->attr.pdid,
+				   mhp->attr.perms,
+				   mhp->attr.zbva,
+				   mhp->attr.va_fbo,
+				   mhp->attr.len,
+				   shift - 12,
+				   mhp->attr.pbl_size, mhp->attr.pbl_addr))
+		return -ENOMEM;
+
+	ret = iwch_finish_mem_reg(mhp, stag);
+	if (ret)
+		cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
+		       mhp->attr.pbl_addr);
+	return ret;
+}
+
+int iwch_alloc_pbl(struct iwch_mr *mhp, int npages)
+{
+	mhp->attr.pbl_addr = cxio_hal_pblpool_alloc(&mhp->rhp->rdev,
+						    npages << 3);
+
+	if (!mhp->attr.pbl_addr)
+		return -ENOMEM;
+
+	mhp->attr.pbl_size = npages;
+
+	return 0;
+}
+
+void iwch_free_pbl(struct iwch_mr *mhp)
+{
+	cxio_hal_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr,
+			      mhp->attr.pbl_size << 3);
+}
+
+int iwch_write_pbl(struct iwch_mr *mhp, __be64 *pages, int npages, int offset)
+{
+	return cxio_write_pbl(&mhp->rhp->rdev, pages,
+			      mhp->attr.pbl_addr + (offset << 3), npages);
+}